CN104157120B - Industrial equipment and the WSN information Perception system and methods of environmental monitoring - Google Patents
Industrial equipment and the WSN information Perception system and methods of environmental monitoring Download PDFInfo
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- CN104157120B CN104157120B CN201410414547.6A CN201410414547A CN104157120B CN 104157120 B CN104157120 B CN 104157120B CN 201410414547 A CN201410414547 A CN 201410414547A CN 104157120 B CN104157120 B CN 104157120B
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Abstract
The invention discloses a kind of WSN information Perception system and methods for environmental monitorings such as industrial equipment and agricultural, traffic, storage, inhabitations, methods described includes:Wireless collection device obtains the sensing data in industrial equipment or environment by respective sensor interface, is sent to radio network gateway by MANET after treatment;Wireless controller is controlled and by status information feedback to radio network gateway according to the control instruction for receiving to execution equipment;The sensing data and status information that radio network gateway will be received upload to base station, and the control instruction that base station sends is descended into wireless controller;Base station will be sent to local monitoring terminals and the control instruction of local monitoring terminals be sent into radio network gateway after the sensing data of reception and status information treatment;Local monitoring terminals can be stored, show the sensing data for collecting, and send control instruction, so as to solving collection in industry spot to industrial equipment and environmental state information, are wirelessly transferred and controlled.
Description
Technical field
It is used for the present invention relates to environment control method, especially one kind such as industrial equipment and agricultural, traffic, storage, inhabitations
Such as the management and control of industrial equipment Internet of Things, industrial environment monitor occasion WSN information Perception system and methods.
Background technology
At present, industrial equipment state is monitored and mainly uses following three kinds of methods:(1) offline manual inspection, this
It is the method for many medium-sized and small enterprises generally use;(2) conditional large and medium-sized enterprise uses wired method;(3) 2G or 3G
Public wireless network method.There are following problems in analysis three of the above method, discovery:
1. offline manual inspection method lacks real-time, promptness, accuracy, long-range in spite of certain effect
Change, networking and low cost, and rate of failing to report is higher.
2. it is easily guaranteed that using the reliability of the data transfer of wired method, but from widely applying practical significance
From the point of view of future development, the problem of following several aspects is primarily present:1. it is inapplicable to mobile industrial equipment.2. system
Invest big, high cost, the ratio of performance to price low.3. the cable reusability of system is low, complexity is high, thus the fault rate of system it is high,
It is not easy to safeguard.4. the autgmentability of system is poor so that monitoring capacity is relatively small, after particularly in its monitoring system, oneself installs
, it is necessary to make larger change to software and hardware in the case of needing to increase monitored area, or even needs are re-designed.
3., using the monitoring of the public wireless nets such as 2G or 3G and early warning, really one is equipped for extensive area mobile industrial
Considerable solution, but it is unreasonable for the industrial equipment of industry spot and the movement of small range region, because it
Operating cost it is high, penetration and promotion value is little.What is more important, radio receiving transmitting module is quiet due to the surface of the elements such as antenna
The factors such as electric charge, high frequency radiation, there may be high-frequency spark, occur when transmitting-receiving power is larger especially in bad environments
Possibility it is bigger.And, the intrinsic mechanism of the Wireless Data Transmission according to 2G or 3G systems, wireless receiving and dispatching power usually can be by
In needing, the regional extent of monitoring is big and larger.Therefore, using it for being inevitably present inflammable, explosion hazard gases, dust
Oil with fluid, in the environment of chemical enterprise when, however it is often difficult to reach explosion-proof safety requirements.
The content of the invention
Goal of the invention:In order to overcome the shortcoming of prior art, the present invention to provide a kind of for industrial equipment and environmental monitoring
WSN sensory perceptual systems and method, solve in industry spot to the collection of industrial equipment and environmental state information and wireless pass
It is defeated, and realize heat transfer agent display and to perform equipment control, be conducive to Accurate Diagnosis and take precautions against failure.
Technical scheme:It is a kind of for industrial equipment and the WSN information Perception systems of environmental monitoring, including:
Wireless collection device, is distributed in monitoring field environment, is powered by dry cell or industry spot basis power supply facilities, uses
The parameter information of information, acquisition industrial equipment or industrial environment in storage industry equipment;The biography that wireless collection device will be collected
Sensor data are sent to radio network gateway by the sensory perceptual system ad-hoc network;
Wireless controller, is powered by industry spot basis power supply facilities, for receiving the control instruction that radio network gateway is transmitted,
Equipment is performed according to control instruction to switching modes such as motor, magnetic valve, audible-visual annunciators to be controlled, and feedback is held
The status information of row equipment is to radio network gateway;Meanwhile, it can forward wireless collection as a part for systems self-organize network
The sensing data of device is to radio network gateway;
Radio network gateway, is powered by industry spot basis power supply facilities, is selected with route for carrying out the data exchange in network
Select, the control instruction that base station is transmitted is sent to wireless controller, while as the remittance of bottom wireless sensor network in system
Poly- node, the state that the sensing data and wireless controller that responsible reception wireless collection device is transmitted by MANET feed back
Information, is wirelessly transmitted to base station;
Base station, is arranged in the Control Room of industry spot, is connected with the local monitoring terminals in Control Room by serial ports, makees
It is wireless sensor network and the tie point of local monitoring terminals;Base station down receives radio network gateway and passes by wireless communication module
The industrial equipment or the sensing data and status information of environment for coming, pass it through analysis, treatment, with postponing, up by serial ports
Local monitoring terminals are sent to, and the control instruction that local monitoring terminals are assigned is sent to wireless network by wireless communication module
Close.
Local monitoring terminals, receive sensing data and status information that base station uploads, the sensing number that storage, display are collected
According to, the sensing data that staff shows according to local monitoring terminals determines the corresponding on/off operation for performing equipment, and by local
Monitor terminal sends control instruction to base station.
The need for strengthening convenience monitoring and being adapted to big data storage and management, it is preferable that shifting can also be set up
Dynamic monitor terminal and remote monitoring center, can all cross mobile Internet/internet and receive the sensing data bag that base station sends
With status message bag, realize portable monitoring, at the same can reach to the storage of data and subsequent analysis and to industrial equipment and
The remote diagnosis of environment.
It is a kind of for industrial equipment and the WSN information sensing methods of environmental monitoring, based on above-mentioned information Perception system, and
Comprise the following steps:
2.1. wireless collection device, wireless controller, radio network gateway, base station power-up initializing;
2.1.1. base station sends system pretrigger packet to radio network gateway, and state is intercepted in holding;
2.1.2. radio network gateway is kept intercepting state, and itself is arrived the hop count h of aggregation node (i.e. radio network gateway itself)s0If
It is set to 0;
2.1.3. wireless collection device is kept intercepting state, and itself is arrived the hop count h of aggregation node (radio network gateway)sInitialization
It is 0;
2.1.4. wireless controller gathers the status information of execution equipment, sends to radio network gateway;
2.2. radio network gateway continues holding and intercepts state if system pretrigger packet is not received;If receiving system to open in advance
Dynamic packet, then (message package includes H to broadcast new information bagsField, its value is equal to the h of the nodesValue), and start
Routing update timer Timer1, goes to 2.3;
If 2.3. the routing update timer Timer1 times of radio network gateway arrive, carry out the routing update of a new round
Journey, broadcast new information bag, goes to 2.4;If routing update timer Timer1 has not timed out, radio network gateway continues to protect
Hold the state of intercepting;
If 2.4. wireless controller receives the routing update message bag from radio network gateway, by routing update message bag
HsThe message is broadcasted after plus 1;If wireless collection device receives routing update message bag, the transmission control in message package is first checked for
Field TControl, if receiving the message package of the TControl first, then by the h of wireless collection device itselfsIt is updated to Hs+ 1,
Record No. ID of the neighbor node and be classified as H-(node of aggregation node hop count few 1 is arrived than oneself), by routing update
H in message packagesThe message is broadcasted after plus 1;If not receiving the message package of the TControl first, then need not broadcast this and disappear
Breath bag and according to the following rules further treatment:
If the 2.4.1. h of wireless collection device itselfsEqual to Hs+ 1, record No. ID of the neighbor node and be classified as H-;
If the 2.4.2. h of wireless collection device itselfsEqual to Hs, record No. ID of the neighbor node and be classified as H0(with
Oneself arrives aggregation node hop count identical node);
If the 2.4.3. h of wireless collection device itselfsEqual to Hs- 1, record No. ID of the neighbor node and be classified as H+
(than oneself to more than aggregation node hop count 1 node);
If the H that 2.4.4. wireless collection device is receivedsIt is other values, then does not deal with;
2.5. after routing update process terminates, each wireless collection device in network obtains oneself to the hop count of aggregation node
And its neighbor node is to the hop count of aggregation node, the wireless communication module of wireless collection device keeps intercepting state, goes to 2.6;
2.6. wireless collection device turn-on data collection timer Timer2, periodically gathers sensing data;
If 2.7. the data acquisition timer Timer2 times of wireless collection device arrive, gather corresponding sensing data, will
Packet is sent to radio network gateway by MANET algorithm;If the data acquisition timer Timer2 times of wireless collection device are not
Arrive, then continue holding and intercept state;
If 2.8. wireless collection device receives the packet that other collectors are sent, the number is forwarded using MANET algorithm
According to bag to radio network gateway, 2.9 are gone to;
If 2.9. radio network gateway receives the information that other nodes are transmitted:
2.9.1. radio network gateway receives the sensing data bag that wireless collection device or wireless controller send, then sent out
Base station is sent to, 2.13 are gone to;
2.9.2. radio network gateway receives the execution status information of equipment bag that wireless controller sends, then send it to
Base station, goes to 2.13;
2.9.3. radio network gateway receives the control instruction that base station sends, then send it to wireless controller, goes to
2.10;
If 2.10. wireless controller receives the control instruction that radio network gateway sends, according to the requirement in instruction to phase
The execution equipment answered carries out switch control, opens waiting timer Timer3;
2.11. the waiting timer Timer3 times of wireless controller arrive, gather execution equipment state, be encapsulated into
Status information bag is sent to radio network gateway;
If 2.12. wireless controller receives the sensing data bag that wireless collection device is sent, radio network gateway is transferred it to;
If 2.13. the wireless communication module of base station receives the sensor data packet or execution equipment that radio network gateway sends
Status message bag, then be sent to monitor terminal after necessarily being processed;If base station receives the control that monitor terminal is transmitted
Instruction, then passed through wireless communication module and be sent to radio network gateway;
If 2.14. monitor terminal receives the sensor data packet of base station, the Monitoring Data in data storage bag simultaneously shows
Show the real time data, staff can determine how related execution equipment is controlled according to each group of data of display,
Send control instruction;If what monitor terminal was received is to perform equipment state information bag, the execution equipment shown on the page is updated
State.
Beneficial effect:The present invention is solved in industry spot for industrial equipment and the information sensing method of environmental monitoring
To the collection of industrial equipment and environmental state information be wirelessly transferred, and coordinate monitor terminal software to realize the display of heat transfer agent
And to performing the control of equipment, be conducive to Accurate Diagnosis and take precautions against failure, reduce operating cost, improve production efficiency, and
To finding in time and to exclude accident potential all significant.
Whole system invests small, low cost, easy to maintain, according to the difference of field condition, hardware accordingly can be expanded
Exhibition, and without being made to software reinstallation, be adapted in various occasion popularization and application.
By the data transfer mode of broadcast new information bag, transmission control is set in each message package to be broadcasted
Field TControl processed, transmission control field ensures that each packet is only broadcasted once, if node is received again by identical biography
The packet of defeated control field, would not continue broadcast, can so avoid causing broadcast storm, waste the energy of system.
The MANET algorithm that the present invention is used utilizes the method for multi-path transmission, the sensor number that wireless collection device will be gathered
According to wirelessly sending to radio network gateway, MANET algorithm can calculate effective transmission path, it is ensured that data are wirelessly passed
Defeated reliability.By wireless transmission method, using the rational deployment of field mounted device, information transmit-receive safety improves whole system
System safety in operation.
Brief description of the drawings
Fig. 1 is industrial equipment and environmental monitoring system block diagram.
Fig. 2 is wireless collection device structure chart.
Fig. 3 is radio network gateway structure chart.
Fig. 4 is wireless controller structure figure.
Fig. 5 is base station structure diagram.
Fig. 6 is the main program flow chart of monitoring method of the present invention.
Fig. 7 is the program flow diagram of wireless collection device.
Fig. 8 is the program flow diagram of radio network gateway.
Fig. 9 is the program flow diagram of wireless controller.
Figure 10 is the program flow diagram of base station.
Figure 11 is MANET algorithm flow chart.
Specific embodiment
Technical solution of the present invention is described in detail below by accompanying drawing, but protection scope of the present invention is not limited to
The embodiment.
Embodiment 1:It is as shown in Figure 1 for industrial equipment and environmental monitoring system, including wireless collection device 1, wireless network
Close 2, wireless controller 3, base station 4 and local monitoring terminals 5, mobile monitoring terminal 6 and remote monitoring center 7.Mobile monitor
, preferably to improve monitoring effect, mobile monitoring terminal 6 and remote monitoring center 7 can be by moving for terminal 6 and remote monitoring center 7
Dynamic internet/internet receives sensing data bag and status message bag that base station 4 sends, reaches the effect of portability monitoring, together
When the data that will can receive stored and subsequent analysis.
Wireless collection device is connected with external sensor, periodically gathers the information of corresponding industrial equipment or environment, will pass
Sensor data are sent to radio network gateway by MANET algorithm, and radio network gateway sends data to base station, and base station is to wireless receiving
To data be analyzed, process, passed through serial ports and sent to local monitoring terminals with postponing, staff is according to local prison
The data that control terminal shows determine the corresponding on/off operation for performing equipment, and control instruction is sent to base station by local monitoring terminals,
Control instruction is sent to radio network gateway by base station, and control instruction is sent to wireless controller, wireless controller root by radio network gateway
According to control instruction control execution equipment ON/OFF, and gather execution equipment status information original road be sent to base station, by base station will
Status information sends to local monitoring terminals and shows.
As shown in Fig. 2 wireless collection device is main under the control of the 1st processor unit, passed with outside by sensor unit
Sensor is connected, and periodically gathers industrial equipment or environmental information.The asynchronous receipts of data are realized by the 1st wireless transmit/receive units
Hair, ephemeral data is stored in the 1st memory cell, and the 1st debugging and communication interface facilitate the debugging of program, and the 1st power subsystem is
Sensor node in addition to sensor unit provides power supply.
As shown in figure 3, radio network gateway is main under the control of the 2nd processor unit, number is realized by the 2nd wireless transmit/receive units
According to asynchronous receiving-transmitting, ephemeral data is stored in the 2nd memory cell, and the 2nd debugging and communication interface facilitate the debugging of program, the 2nd
Power subsystem provides power supply for radio network gateway.
As shown in figure 4, wireless controller is main under the control of the 3rd processor unit, realized to performing by control unit
The control of equipment and state acquisition, the asynchronous receiving-transmitting of data is realized by the 3rd wireless transmit/receive units, and ephemeral data is stored in the 3rd
Memory cell, the 3rd debugging and communication interface facilitate the debugging of program, and the 3rd power subsystem provides power supply for wireless controller.
As shown in figure 5, base station is main under the control of the 4th processor unit, data are realized by the 4th wireless transmit/receive units
Asynchronous receiving-transmitting, ephemeral data is stored in the 4th memory cell, and the 4th debugging and communication interface facilitate the debugging of program, the 4th power supply
Unit provides power supply for base station, and PC interface units are the interface unit communicated with local monitoring terminals.
Embodiment 1
Industrial equipment as shown in Figure 1 and environmental monitoring system all nodes (including wireless collection device, radio network gateway,
Wireless controller, base station) on electricity and initialized.Wireless collection device initializes its 1st wireless transmit/receive units, is at letter
Message receiving state;Initializing sensor unit, preparation for acquiring data.Radio network gateway initializes its 2nd wireless transmit/receive units, makes it
In information transmit-receive state.Wireless controller initializes its 3rd wireless transmit/receive units, is at information re-ception state;Wirelessly
Controller initialization control unit, preparation for acquiring performs equipment state.Base station initialization its 4th wireless transmit/receive units, prepare to open
Dynamic system.
As shown in fig. 6, this industrial equipment and environmental information cognitive method comprise the following steps:
2.1. wireless collection device, wireless controller, radio network gateway, base station power-up initializing;
2.1.1. base station sends system pretrigger packet to radio network gateway, and state is intercepted in holding;
2.1.2. radio network gateway is kept intercepting state, and itself is arrived the hop count h of aggregation node (i.e. radio network gateway itself)s0If
It is set to 0;
2.1.3. wireless collection device is kept intercepting state, and itself is arrived the hop count h of aggregation node (radio network gateway)sInitialization
It is 0;
2.1.4. wireless controller gathers the status information of execution equipment, sends to radio network gateway;
2.2. radio network gateway continues holding and intercepts state if system pretrigger packet is not received;If receiving system to open in advance
Dynamic packet, then (message package includes H to broadcast new information bagsField, its value is equal to the h of the nodesValue), and start
Routing update timer Timer1, goes to 2.3;
If 2.3. the routing update timer Timer1 times of radio network gateway arrive, carry out the routing update of a new round
Journey, broadcast new information bag, goes to 2.4;If routing update timer Timer1 has not timed out, radio network gateway continues to protect
Hold the state of intercepting;
If 2.4. wireless controller receives the routing update message bag from radio network gateway, by routing update message bag
HsThe message is broadcasted after plus 1;If wireless collection device receives routing update message bag, the transmission control in message package is first checked for
Field TControl, if receiving the message package of the TControl first, then by the h of wireless collection device itselfsIt is updated to Hs+ 1,
Record No. ID of the neighbor node and be classified as H-(node of aggregation node hop count few 1 is arrived than oneself), by routing update
H in message packagesThe message is broadcasted after plus 1;If not receiving the message package of the TControl first, then need not broadcast this and disappear
Breath bag and according to the following rules further treatment:
If the 2.4.1. h of wireless collection device itselfsEqual to Hs+ 1, record No. ID of the neighbor node and be classified as H-;
If the 2.4.2. h of wireless collection device itselfsEqual to Hs, record No. ID of the neighbor node and be classified as H0(with
Oneself arrives aggregation node hop count identical node);
If the 2.4.3. h of wireless collection device itselfsEqual to Hs- 1, record No. ID of the neighbor node and be classified as H+
(than oneself to more than aggregation node hop count 1 node);
If the H that 2.4.4. wireless collection device is receivedsIt is other values, then does not deal with;
2.5. after routing update process terminates, each wireless collection device in network obtains oneself to the hop count of aggregation node
And its neighbor node is to the hop count of aggregation node, the wireless communication module of wireless collection device keeps intercepting state, goes to 2.6;
2.6. wireless collection device turn-on data collection timer Timer2, periodically gathers sensing data;
If 2.7. the data acquisition timer Timer2 times of wireless collection device arrive, gather corresponding sensing data, will
Packet is sent to radio network gateway by MANET algorithm;If the data acquisition timer Timer2 times of wireless collection device are not
Arrive, then continue holding and intercept state;
If 2.8. wireless collection device receives the packet that other collectors are sent, the number is forwarded using MANET algorithm
According to bag to radio network gateway, 2.9 are gone to;
If 2.9. radio network gateway receives the information that other nodes are transmitted:
2.9.1. radio network gateway receives the sensing data bag that wireless collection device or wireless controller send, then sent out
Base station is sent to, 2.13 are gone to;
2.9.2. radio network gateway receives the execution status information of equipment bag that wireless controller sends, then send it to
Base station, goes to 2.13;
2.9.3. radio network gateway receives the control instruction that base station sends, then send it to wireless controller, goes to
2.10;
If 2.10. wireless controller receives the control instruction that radio network gateway sends, according to the requirement in instruction to phase
The execution equipment answered carries out switch control, opens waiting timer Timer3;
2.11. the waiting timer Timer3 times of wireless controller arrive, gather execution equipment state, be encapsulated into
Status information bag is sent to radio network gateway;
If 2.12. wireless controller receives the sensing data bag that wireless collection device is sent, radio network gateway is transferred it to;
If 2.13. the wireless communication module of base station receives the sensor data packet or execution equipment that radio network gateway sends
Status message bag, then be sent to local monitoring terminals after necessarily being processed;If base station receives local monitoring terminals biography
The control instruction come, then passed through wireless communication module and be sent to radio network gateway;
If 2.14. local monitoring terminals receive the sensing data bag of base station, the Monitoring Data in data storage bag is simultaneously
The real time data is shown, staff can determine how related execution equipment is controlled according to each group of data of display
System, sends control instruction;If what local monitoring terminals were received is to perform equipment state information bag, what is shown on the renewal page holds
Row equipment state.
In system after each node power-up initializing, base station transmission system pretrigger packet is to radio network gateway first.Table 1 is
System pretrigger data packet format:Wherein type of data packet represents system pretrigger packet for 0x01;Source address is base station ground
Location;Destination address is the address of radio network gateway.
The form of the system pretrigger packet of table 1
Sequence number | Field name | Field length | Explanation |
1 | Packet type | 1byte | Mark Packet type (0x01) |
2 | Source address | 2byte | Base station IDs |
3 | Destination address | 2byte | Radio network gateway ID |
4 | CRC check | 2byte | 1st, 2,3 field datas verification |
Radio network gateway receives broadcast new information bag after system pretrigger packet, and starts routing update regularly
Device Timer1, timer time is to then starting new round routing update.Table 1 is routing update message bag form:Wherein hop count Hs
It is the hop count to aggregation node (radio network gateway).In the entire system, the every packet to be broadcasted, has a field, just
It is transmission control field TControl.Transmission control field ensures that each packet is only broadcasted once, if node is received again by
Identical transmits the packet of control field, would not continue broadcast.Broadcast storm will not thus be caused, the energy of system is wasted
Amount.
The form of the routing update message bag of table 2
Sequence number | Field name | Field length | Explanation |
1 | Packet type | 1byte | 0x02 |
2 | Source address | 2byte | Mark data sending node ID |
3 | Destination address | 2byte | 0xFFFF represents broadcast address |
4 | Hop count Hs | 1byte | To the hop count of aggregation node |
5 | Transmission control | 1byte | Produce a random number |
6 | CRC check | 2byte | 1st, 2,3,4,5 field datas verification |
After wireless controller receives the routing update message bag from radio network gateway, by the H in routing update message bagsPlus
The message is broadcasted after 1;After wireless collection device receives routing update message bag, then the transmission control field in message package
TControl decides whether hop count HsContinue the bag that broadcasts the message after plus 1, and according to the hop count h of Routing Protocol Policy Updates oneselfs
And neighbor table information.After routing update process terminates, wireless collection device is periodically adopted by data acquisition timer Timer2
Collection sensing data.
Embodiment 2:
Wireless collection device in system, is distributed in monitoring field environment, is set by dry cell or the power supply of industry spot basis
Apply power supply.After wireless collection device power-up initializing, the 1st wireless transmit/receive units enter intercepts state.If wireless collection device is received
Routing update message bag, first checks for the transmission control field TControl in message package, if receiving the TControl first
Message package, then by the h of wireless collection device itselfsIt is updated to Hs+ 1, record No. ID of the neighbor node and be classified as H-
(node of aggregation node hop count few 1 is arrived than oneself), by the H in routing update message bagsThe message is broadcasted after plus 1;If not
The message package of the TControl is received first, then need not again broadcast the message package, but also to update neighbor table information.
After routing update process terminates, wireless collection device periodically gathers sensing by data acquisition timer Timer2
Device data.If the data acquisition timer Timer2 times arrive, gather sensor information and number will be sensed by MANET algorithm
Radio network gateway is sent to according to bag.If the sensing data bag that other wireless collection devices send is received, according to sensing data bag
In route field determine forwarding probability;The packet to radio network gateway is then forwarded using MANET algorithm.
Sensing data bag:It is main numbered including route field, industrial equipment and industrial equipment parameter sensing etc., its Road
It is made up of fields such as channel error rate, the hop count to aggregation node, distribution path number and destination addresses field.To be sent
The specific form of sensing data bag is as shown in Table 3:
The wireless collection device sensing data bag form of table 3
As shown in fig. 7, the workflow of wireless collection device is as follows:
3.1. wireless collection device power-up initializing, itself is arrived the hop count h of aggregation node (radio network gateway)sIt is initialized as 0,
1st wireless transmit/receive units of wireless collection device keep intercepting state,;
If 3.2. wireless collection device receives routing update message bag, the H in message packagesDetermined with TControl fields
It is fixed whether to update the h of oneselfsAnd whether continue to broadcast HsRouting update message bag after plus 1;Simultaneously according to the message package note for receiving
Record neighbor node is simultaneously classified;
3.3. after routing update process terminates, each wireless collection device in network obtains oneself to the hop count of aggregation node
And its neighbor node is to the hop count of aggregation node;
3.4. wireless collection device turn-on data collection timer Timer2, periodically gathers sensing data;
If 3.5. the data acquisition timer Timer2 times of wireless collection device arrive, sensing data is gathered, as source
Sensing data bag is sent to aggregation node by node by MANET algorithm;If data acquisition timer Timer2 has not timed out,
Then keep intercepting state;
If 3.6. wireless collection device receives the sensing data bag that neighbor node is transmitted, as forward node by the packet
Aggregation node is sent to by MANET algorithm;
Embodiment 3:
After radio network gateway power-up initializing, the 3rd radio receiving transmitting module is in state of intercepting, and waits the system of base station to start and disappears
Breath.After receiving base station pretrigger message package, then start broadcast new information bag, start routing update timer Timer1,
Periodically carry out routing update work.Radio network gateway has the function of data exchange and Route Selection in a network:If radio network gateway
The sensing data bag that wireless collection device or wireless controller send is received, then transfers it to base station;If radio network gateway is received
To the status information bag that wireless controller sends, base station is also transferred it to;If radio network gateway receives the control of base station transmission
Director data bag, then transfer it to wireless controller.
As shown in figure 8, the workflow of the radio network gateway is as follows:
4.1. radio network gateway power-up initializing, itself is arrived the hop count h of aggregation node (i.e. radio network gateway oneself)s0It is set to
0, state is intercepted in holding;
If 4.2. radio network gateway receives the system pretrigger packet sent base station, broadcast new information bag (should
Message package includes HsField, its value is equal to the h of the nodesValue), and start routing update timer Timer1, periodically broadcast
Routing update message bag;
If 4.3. the routing update timer Timer1 times of radio network gateway arrive, broadcast new routing update message bag,
Start the routing update process of a new round;If routing update timer Timer1 has not timed out, continue holding and intercept state;
If 4.4. radio network gateway receives the information that other nodes are transmitted:
4.4.1. radio network gateway receives the sensor data packet that wireless collection device or wireless controller send, then by it
It is sent to base station;
4.4.2. radio network gateway receives the execution status information of equipment bag that wireless controller sends, then send it to
Base station;
4.4.3. radio network gateway receives the control instruction that base station sends, then send it to wireless controller;
With radio network gateway as aggregation node, wireless collection device MANET sends the signal to the MANET algorithm of radio network gateway
As shown in figure 11, MANET step is as follows:
7.1. itself is arrived radio network gateway the hop count h of aggregation node (i.e. radio network gateway oneself)sIt is set to 0, broadcast
(message package includes H to new information bagsField, its value is equal to the h of the nodesValue), and start routing update timer
Timer1, periodically broadcast new information bag;
If 7.2. wireless controller receives the routing update message bag from radio network gateway, by routing update message bag
HsThe message is broadcasted after plus 1;If wireless collection device receives routing update message bag, the transmission control in message package is first checked for
Field TControl, if receiving the message package of the TControl first, then by the h of wireless collection device itselfsIt is updated to Hs+ 1,
Record No. ID of the neighbor node and be classified as H-(node of aggregation node hop count few 1 is arrived than oneself), by routing update
H in message packagesThe message is broadcasted after plus 1;If not receiving the message package of the TControl first, then need not broadcast this and disappear
Breath bag and according to the following rules further treatment:
If the 7.2.1. h of wireless collection device itselfsEqual to Hs+ 1, record No. ID of the neighbor node and be classified as H-;
If the 7.2.2. h of wireless collection device itselfsEqual to Hs, record No. ID of the neighbor node and be classified as H0(with
Oneself arrives aggregation node hop count identical node);
If the 7.2.3. h of wireless collection device itselfsEqual to Hs- 1, record No. ID of the neighbor node and be classified as H+
(than oneself to more than aggregation node hop count 1 node);
If the H that 7.2.4. wireless collection device is receivedsIt is other values, then does not deal with;
7.3. after routing update process terminates, each wireless collection device in network obtains oneself to the hop count of aggregation node
And its neighbor node is to the hop count of aggregation node,;
If 7.4. the data acquisition timer Timer2 times of wireless collection device arrive, sensing data is gathered, as source
Sensor data packet is sent to aggregation node by node by MANET algorithm:
7.4.1. the Successful transmissions number of path P that source node needs is calculateds:P(rs, es, hs)=(log (1-rs))/(log(1-
(1-es)hs));Wherein, rsIt is dependability parameter, is less than 1 positive number, represents that the data source of system requirements sends packet
To the probability of success of aggregation node;esIt is channel error rate, is also less than 1 positive number, represents each node to the neighbours of oneself
The channel quality of node, it is assumed that the value is identical in the entire network;Hs is hop count of the node to aggregation node;
7.4.2. source node is first from H-A next-hop node by default is chosen in class neighbor node, under acquiescence
One hop node forwarding data probability is set to 1;As (1-es) it is more than or equal to number of path PsWhen, show that source node need to only be given tacit consent to next
Hop node can meet system reliability requirement, go to 7.4.5;Otherwise, also need to calculate extra number of path, go to 7.4.3;
7.4.3. extra path number P=(log (1-r are calculateds))/(log(1-(1-es)hs))-(1-es);Under extra path
The selection principle of one hop node is:First preferentially from H-Middle selection next-hop node:When number of path P values are more than H-In nodes
When, just need from H0Middle selection;As P values are more than H0And H-Interior joint number sum, just from H+Middle selection node;
7.4.4. per class neighbor node in the node that is selected all need to be number of path that source node creates certain amount, ability
Ensure that all number of path summations for choosing node to provide are P;Use PH -, PH 0, PH +Represent H-, H0, H+In be selected as next-hop
Node need be source node create number of path, if H-, H0, H+The nodes of middle selection are followed successively by NH -, NH 0, NH +, then have:PH -
NH -+PH 0NH 0+PH +NH +=P;PH -, PH 0, PH +Allocation proportion be:PH -=PH 0/(1-es)=PH +/(1-es)2;
7.4.5. source node adds three parameters in the route field of the packet for sending:es、hsAnd PH, wherein PHRepresent
In set H, (set H includes H-, H0, H+In whole nodes) in choose as the node of next-hop need be source node create
Path number;Deliver a packet to the next-hop node chosen;
If 7.5. wireless collection device receives the packet that neighbor node sends, according to route field in packet
Number of path PHWhether identical determine the probability forwards packet, such as determines to forward, and goes to 7.6;Otherwise abandon the packet;
7.6. wireless collection device recalculates reliability value:ri=1- (1- (1-es)hs-1)P H;riIt is the node i to protect
The reliabilities specified of card upper hop node s and the reliability value that recalculates;Wireless collection device using oneself as source node, profit
With the parameter r of oneselfi、esAnd hsRequired transmission path number is recalculated, 7.4.1 is gone to;
If 7.7. wireless controller receives the sensing data bag that wireless collection device is sent, radio network gateway is transferred it to;
7.8. this routing procedure continues, untill reaching up to aggregation node (radio network gateway).
The MANET algorithm for being used utilizes the method for multi-path transmission, it is ensured that the reliability that data are wirelessly transferred.
After wireless controller power-up initializing, the state of execution equipment is gathered first, send status information bag to wireless network
Close;4th radio receiving transmitting module is in and intercepts state.If wireless controller receives the routing update message bag from radio network gateway,
Then by the H in routing update message bagsThe message is broadcasted after plus 1;If receiving the sensing data bag that wireless collection device is sent, will
It is forwarded to radio network gateway;If receiving the control instruction that radio network gateway is sent, according to the opening of the related execution equipment of instruction control/
Close, open waiting timer Timer3, the Timer3 time to the state for then gathering execution equipment, send status information bag to wirelessly
Gateway.Status information bag form is as shown in table 4.
Table 4 performs status information of equipment bag form
Sequence number | Field name | Field length | Explanation |
1 | Packet type | 1byte | 0x04 |
2 | Source address | 2byte | Wireless controller ID |
3 | Destination address | 2byte | Radio network gateway ID |
4 | Status information | X byte | Identify the state of execution equipment |
5 | CRC check | 2byte | 1st, 2,3,4 field datas verification |
As shown in figure 9, wireless controller further includes the following steps:
5.1. wireless controller power-up initializing, gathers the status information of execution equipment, sends to radio network gateway;Wireless controlled
Device processed keeps intercepting state;
If 5.2. wireless controller receives the routing update message bag from radio network gateway, by routing update message bag
HsThe message is broadcasted after plus 1;
If 5.3. wireless controller receives the sensing data bag that wireless collection device is sent, radio network gateway is transferred it to;
If 5.4. wireless controller receives the control instruction that radio network gateway sends, according to the requirement in instruction to corresponding
Execution equipment carry out switch control, open waiting timer Timer3;
5.5. the waiting timer Timer3 times of wireless controller arrive, gather execution equipment state, be encapsulated into
Status information bag is sent to radio network gateway;
After the power-up initializing of base station, system pretrigger packet is sent to radio network gateway, the 4th radio receiving transmitting module is in and detects
Listen state.Base station has the function be analyzed to data, processed, configured, if receiving the sensing data that radio network gateway is sent
Bag performs status information of equipment bag, then be sent to local monitoring terminals by PC interface units after passing it through certain treatment;
If receiving the control instruction that local monitoring terminals are transmitted by PC interface units, it is encapsulated into control instruction packet and sends
To radio network gateway.Control instruction data packet format as shown in table 5, is sent to the sensing data bag such as institute of table 6 of local monitoring terminals
Show, status information bag is as shown in table 7.
The control instruction data packet format of table 5
Sequence number | Field name | Field length | Explanation |
1 | Packet type | 1byte | 0x05 |
2 | Source address | 2byte | Base station IDs |
3 | Destination address | 2byte | Radio network gateway ID |
4 | Control instruction | X byte | The control instruction of execution equipment |
5 | CRC check | 2byte | 1st, 2,3,4 field datas verification |
Table 6 is sent to the sensing data bag form of local monitoring terminals
Sequence number | Field name | Field length | Explanation |
1 | Origin identification is accorded with | 1byte | 0x6F |
2 | Packet type | 1byte | 0x06 |
3 | Industrial equipment ID | 1byte | Wireless collection device ID |
4 | Heat transfer agent | 2byte | Sensing data |
5 | End identifier | 1byte | 0x6F |
Table 7 is sent to the status information bag form of local monitoring terminals
Sequence number | Field name | Field length | Explanation |
1 | Origin identification is accorded with | 1byte | 0x7F |
2 | Packet type | 1byte | 0x07 |
3 | Status information | X byte | The state of execution equipment |
4 | End identifier | 1byte | 0x7F |
As shown in Figure 10, base station further includes the following steps:
6.1. base station power-up initializing, sends system pretrigger packet to radio network gateway, and state is intercepted in holding;
If 6.2. the 4th wireless transmit/receive units of base station receive sensing data bag or the execution equipment that radio network gateway sends
Status message bag, then be sent to monitor terminal after necessarily being processed;
If 6.3. base station receives the control instruction that local monitoring terminals are transmitted, sent by wireless communication module
To radio network gateway;
Local monitoring terminals show the data, staff such as temperature, pressure, flow in the industrial equipment and environment for collecting
Can determine how related execution equipment is controlled according to each group of data of display, assign control instruction;Local monitor
Terminal according to feedback the state information updating page on show execution equipment state, so as to realize industrial equipment and ambient parameter
Detection and the control to related execution equipment.
Information sensing method of the invention is applied to the information Perception layer of industrial equipment or environmental monitoring WSN systems, mainly
The information such as temperature, pressure, flow in by obtaining industrial equipment or environment, and by information by each wireless collection device in network
Node is transmitted to local monitoring terminals in the way of wireless self-networking.Local monitoring terminals install monitoring software according to receiving
Data are monitored to industrial equipment and environment.
From above-described embodiment, the present invention can in real time understand the rings such as industrial equipment and agricultural, traffic, storage, inhabitation
The relevant parameter information in border, can carry out switch control according to real time data to related execution equipment at any time, prevent abnormal conditions
Generation, industrial production activities of safety etc. are extremely important.
Claims (8)
1. it is a kind of for industrial equipment and the WSN information sensing methods of environmental monitoring, it is characterised in that based on industrial equipment and ring
Border monitoring WSN information Perception systems, the system include wireless collection device, be distributed in monitoring field environment, for obtain and
The sensing data of storage industry equipment or environment, and the sensing data of acquisition is sent to radio network gateway by MANET;Wirelessly
Controller, for receiving control instruction that radio network gateway transmits, equipment performed to switching mode according to control instruction be controlled and
The status information of execution equipment is fed back to radio network gateway, while forwarding the sensing data of wireless collection device to radio network gateway;Wirelessly
Gateway, controlled in wireless is sent to for the data exchange and Route Selection in system MANET, by the control instruction that base station is transmitted
Device, while as the aggregation node of bottom wireless sensor network, being responsible for receiving the biography that wireless collection device is transmitted by MANET
The status information that sense data and wireless controller feed back is wirelessly transmitted to base station;Base station, is arranged on the prison of industry spot
Control is indoor, is connected with local monitoring terminals by serial ports, as wireless sensor network and the tie point of local monitoring terminals, base
Industrial equipment or the sensing data and status information of environment that downlink reception radio network gateway of standing is transmitted, pass it through analysis, treatment,
It is up that local monitoring terminals are sent to by serial ports with postponing, and the control instruction that local monitoring terminals are assigned is sent to wirelessly
Gateway;Local monitoring terminals, receive sensing data and status information that base station uploads, store, show the sensing data for collecting,
The sensing data that staff shows according to local monitoring terminals determines the corresponding on/off operation for performing equipment, and by locally supervising
Control terminal sends control instruction to base station;
Comprise the following steps:
1st step:Wireless collection device, wireless controller, radio network gateway and base station power-up initializing;Radio network gateway is set to bottom
The aggregation node of wireless sensor network, base station sends system pretrigger packet and keeps intercepting state to radio network gateway, base station,
Radio network gateway keeps the hop count h for intercepting state, itself being arrived aggregation nodes0Be set to 0, wireless collection device keep intercepting state,
Itself is arrived the hop count h of aggregation nodes0 is set to, wireless controller gathers the status information of execution equipment, sent to wireless network
Close, keep intercepting state;
2nd step:Radio network gateway continues holding and intercepts state if system pretrigger packet is not received;If receiving system pretrigger
Packet, then broadcast new information bag, and routing update timer Timer1 is opened, during routing update timer Timer1
Between arrive after, radio network gateway broadcast new information bag;After wireless controller receives the new information bag from radio network gateway, will
Hop count HsThe message package is broadcasted after plus 1;After wireless collection device receives new information bag, then the transmission control in message package
Field TControl decides whether hop count HsContinue the bag that broadcasts the message after plus 1, and according to Routing Protocol Policy Updates oneself
Hop count hsAnd neighbor table information;If routing update timer Timer1 has not timed out, radio network gateway continues holding and intercepts state;
3rd step:After routing update process terminates, wireless collection device turn-on data collection timer Timer2 is periodically gathered
Sensing data, the data acquisition timer Timer2 times are sent to wireless network sensing data bag by MANET algorithm after
Close;If data acquisition timer Timer2 has not timed out, wireless collection device continues holding and intercepts state;If wireless collection device
The sensing data bag that other wireless collection devices are sent is received, then the sensing data bag to wireless network is forwarded using MANET algorithm
Close;
4th step:If radio network gateway receives sensing data bag or the controlled in wireless that wireless collection device or wireless controller send
Status information bag that device sends, then send to base station, if radio network gateway receive send base station control instruction, if by control instruction
It is sent to wireless controller;
5th step:If wireless controller receives the control instruction that radio network gateway sends, according to the requirement in control instruction to phase
The execution equipment answered carries out switch control, and opening timing device Timer3 after the timer Timer3 times of wireless controller arrive, is adopted
Collect the state of execution equipment and be encapsulated into status information bag and be sent to radio network gateway;If wireless controller receives wireless collection
The sensing data bag that device is sent, then transfer it to radio network gateway;
6th step:If base station receives the sensing data bag or status information bag that radio network gateway sends, necessarily located
Local monitoring terminals are sent to after reason;If base station receives the control instruction that local monitoring terminals are transmitted, nothing is sent it to
Gauze is closed;
7th step:If local monitoring terminals receive the sensing data bag of base station, the Monitoring Data in storage sensing data bag is simultaneously
The Monitoring Data is shown, staff determines how related execution equipment is controlled, sends out according to each group of data of display
Send control instruction;If what local monitoring terminals were received is status message bag, the execution equipment state shown on the page is updated.
2. information sensing method according to claim 1, it is characterised in that the workflow of wireless collection device includes following
Step:
3.1. wireless collection device power-up initializing, itself is arrived the hop count h of aggregation node radio network gateways0 is initialized as, is wirelessly adopted
The communication module of storage keeps intercepting state;
If 3.2. wireless collection device receives routing update message bag, the H in message packagesIt is with the decision of TControl fields
The no renewal h of oneselfsAnd whether continue to broadcast HsRouting update message bag after plus 1;It is simultaneously adjacent according to the message package record for receiving
Occupy node and classify;
3.3. after routing update process terminates, each wireless collection device in network obtain oneself to aggregation node hop count and
Hop count of its neighbor node to aggregation node;
3.4. wireless collection device turn-on data collection timer Timer2, periodically gathers sensing data;
If 3.5. the data acquisition timer Timer2 times of wireless collection device arrive, sensing data is gathered, as source node
Sensor data packet is sent to aggregation node by MANET algorithm;If data acquisition timer Timer2 has not timed out,
State is intercepted in holding;
If 3.6. wireless collection device receives the sensor data packet that neighbor node is transmitted, as forward node by the packet
Aggregation node is sent to by MANET algorithm.
3. information sensing method according to claim 1, it is characterised in that the workflow of radio network gateway includes following step
Suddenly:
4.1. radio network gateway power-up initializing, itself is arrived the hop count h of aggregation nodes00 is set to, state is intercepted in holding;
If 4.2. radio network gateway receives the system pretrigger packet sent base station, broadcast new information bag, and starts
Routing update timer Timer1, periodically broadcast new information bag;
If 4.3. the routing update timer Timer1 times of radio network gateway arrive, broadcast new routing update message bag, start
The routing update process of a new round;If routing update timer Timer1 has not timed out, continue holding and intercept state;
If 4.4. radio network gateway receives the information that other nodes are transmitted:
4.4.1. radio network gateway receives the sensor data packet that wireless collection device or wireless controller send, then be sent to
To base station;
4.4.2. radio network gateway receives the execution status information of equipment bag that wireless controller sends, then send it to base
Stand;
4.4.3. radio network gateway receives the control instruction that base station sends, then send it to wireless controller.
4. information sensing method according to claim 1, it is characterised in that the workflow of wireless controller includes following
Step:
5.1. wireless controller power-up initializing, gathers the status information of execution equipment, sends to radio network gateway, wireless controller
State is intercepted in holding;
If 5.2. wireless controller receives the routing update message bag from radio network gateway, by the H in routing update message bags
The message package is broadcasted after plus 1;
If 5.3. wireless controller receives the sensing data bag that wireless collection device is sent, radio network gateway is transferred it to;
If 5.4. wireless controller receives the control instruction that radio network gateway sends, according to the requirement in instruction to holding accordingly
Row equipment carries out switch control, opens waiting timer Timer3;
5.5. the waiting timer Timer3 times of wireless controller arrive, gather execution equipment state, be encapsulated into state
Packets are to radio network gateway.
5. information sensing method according to claim 1, it is characterised in that the workflow of base station comprises the following steps:
6.1. base station power-up initializing, sends system pretrigger packet to radio network gateway, and base station keeps intercepting state;
If 6.2. the wireless communication module of base station receives the sensor data packet or execution equipment state that radio network gateway sends
Message package, then be sent to local terminal after necessarily being processed;
If 6.3. base station receives the control instruction that local terminal is transmitted, the wireless communication module that control instruction is passed through into base station
It is sent to radio network gateway.
6. information sensing method according to claim 1 and 2, it is characterised in that the MANET algorithm includes following step
Suddenly:
7.1. itself is arrived radio network gateway the hop count h of aggregation nodes0It is set to 0, broadcast new information bag, the message package bag
Containing HsField, its value is equal to the h of the nodes0Value, and start routing update timer Timer1, periodically broadcast updates
Message package;
If 7.2. wireless controller receives the routing update message bag from radio network gateway, by the H in routing update message bags
The message is broadcasted after plus 1;If wireless collection device receives routing update message bag, the transmission control field in message package is first checked for
TControl, if receiving the message package of the TControl first, then by the h of wireless collection device itselfsIt is updated to Hs+ 1, record
No. ID of the neighbor node and it is classified as H-, i.e. than oneself to aggregation node hop count few 1 node, by routing update message
H in bagsThe message is broadcasted after plus 1;If not receiving the message package of the TControl first, then the message package need not be broadcasted
And further treatment according to the following rules:
If the 7.2.1. h of wireless collection device itselfsEqual to Hs+ 1, record No. ID of the neighbor node and be classified as H-, that is, compare
Oneself node to aggregation node hop count few 1;
If the 7.2.2. h of wireless collection device itselfsEqual to Hs, record No. ID of the neighbor node and be classified as H0, i.e., with oneself
Oneself arrives aggregation node hop count identical node;
If the 7.2.3. h of wireless collection device itselfsEqual to Hs- 1, record No. ID of the neighbor node and be classified as H+, that is, compare
Oneself node to aggregation node hop count many 1;
If the H that 7.2.4. wireless collection device is receivedsIt is other values, then does not deal with;
7.3. after routing update process terminates, each wireless collection device in network obtain oneself to aggregation node hop count and
Hop count of its neighbor node to aggregation node;
If 7.4. the data acquisition timer Timer2 times of wireless collection device arrive, sensing data is gathered, as source node
Sensor data packet is sent to aggregation node by MANET algorithm:
7.4.1. the Successful transmissions number of path P that source node needs is calculateds:P(rs, es, hs)=(log (1-rs))/(log(1-(1-
es)hs));Wherein, rsIt is dependability parameter, is less than 1 positive number, represents that the data source of system requirements forwards packets to remittance
The probability of success of poly- node;esIt is channel error rate, is also less than 1 positive number, represents each node to the neighbor node of oneself
Channel quality, it is assumed that the value is identical in the entire network;hsIt is hop count of the node to aggregation node;
7.4.2. source node is first from H-A next-hop node by default, the next-hop of acquiescence are chosen in class neighbor node
Node for data forwarding probability is set to 1;As (1-es) it is more than or equal to number of path PsWhen, show that source node need to only give tacit consent to next-hop section
Point can meet system reliability requirement, go to 7.4.5;Otherwise, also need to calculate extra number of path, go to 7.4.3;
7.4.3. extra path number P=(log (1-r are calculateds))/(log(1-(1-es)hs))-(1-es);Extra path next-hop
The selection principle of node is:First preferentially from H-Next-hop node is chosen in class neighbor node:When number of path P values are more than H-In
During nodes, just need from H0Middle selection;As P values are more than H0And H-Interior joint number sum, just from H+Middle selection node;
7.4.4. per class neighbor node in the node that is selected all need to be number of path that source node creates certain amount, just can ensure that
All number of path summations for choosing node to provide are P;Use PH -, PH 0, PH +Represent H-, H0, H+In be selected as next-hop section
Point needs the number of path created for source node, if H-, H0, H+The nodes of middle selection are followed successively by NH -, NH 0, NH +, then have:PH -NH -+
PH 0NH 0+PH +NH +=P;PH -, PH 0, PH +Allocation proportion be:PH -=PH 0/(1-es)=PH +/(1-es)2;
7.4.5. source node adds three parameters in the route field of the packet for sending:es、hsAnd PH, wherein PHRepresent in set
H chooses to be needed to be the path number of source node establishment as the node of next-hop, and set H includes H-, H0, H+In whole nodes;
Deliver a packet to the next-hop node chosen;
If 7.5. wireless collection device receives the packet that neighbor node sends, according to the path with route field in packet
Number PHWhether identical determine the probability forwards packet, such as determines to forward, and goes to 7.6;Otherwise abandon the packet;
7.6. wireless collection device recalculates reliability value:ri=1- (1- (1-es)hs-1)P H;riBe the node i in order to ensure on
Reliability that one hop node s is specified and the reliability value that recalculates;Wireless collection device using oneself as source node, using from
Oneself parameter ri、esAnd hsRequired transmission path number is recalculated, 7.4.1 is gone to;
If 7.7. wireless controller receives the sensing data bag that wireless collection device is sent, radio network gateway is transferred it to;
7.8. this routing procedure continues, untill reaching up to aggregation node radio network gateway.
7. information sensing method according to claim 1, it is characterised in that:The form bag of the system pretrigger packet
Include Packet type, source address, destination address and CRC check, the address that source address is base station address, destination address is radio network gateway;
The form of the routing update message bag includes Packet type, source address, destination address, hop count, transmission control and CRC check;Institute
The form for stating status information bag includes origin identification symbol, Packet type, status information and end identifier;The sensing data bag
Form includes origin identification symbol, Packet type, industrial equipment ID, heat transfer agent and end identifier.
8. information sensing method according to claim 1, it is characterised in that:The data content of the sensing data bag includes
The parameter sensing of the numbering, industrial equipment or environment of route field, industrial equipment or environment, wherein route field is by channel error
Rate, the hop count to aggregation node, distribution path number and destination address composition.
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