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Publication numberCN102165811 A
Publication typeApplication
Application numberCN 200980137945
PCT numberPCT/US2009/058366
Publication date24 Aug 2011
Filing date25 Sep 2009
Priority date25 Sep 2008
Also published asCA2733268A1, CN102165811B, EP2340667A2, EP2340667A4, EP2340667B1, US9485649, US20110164512, WO2010036885A2, WO2010036885A3, WO2010036885A4
Publication number200980137945.5, CN 102165811 A, CN 102165811A, CN 200980137945, CN-A-102165811, CN102165811 A, CN102165811A, CN200980137945, CN200980137945.5, PCT/2009/58366, PCT/US/2009/058366, PCT/US/2009/58366, PCT/US/9/058366, PCT/US/9/58366, PCT/US2009/058366, PCT/US2009/58366, PCT/US2009058366, PCT/US200958366, PCT/US9/058366, PCT/US9/58366, PCT/US9058366, PCT/US958366
Inventors丹尼尔克利福德卡尔森, 伊恩彼得夏普, 凯文安德鲁肖, 彼得霍奇森, 约瑟夫奇特拉诺, 马克理查德艾维森
Applicant费希尔-罗斯蒙德系统公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Wireless mesh network with pinch point and low battery alerts
CN 102165811 A
Abstract
A wireless mesh network includes a plurality of wireless devices and a gateway organized in a multi hop mesh topology. Each wireless device maintains and reports radio statistics to the gateway, and also reports battery conditions of its power source. The device manager communicates with the gateway and provides an alert indicating existence of a pinch point within the mesh network based upon the radio statistics. When a low battery condition is reported by a device, the device manager determines whether loss of that device is a pinch point or will cause a pinch point, and provides a low battery alert prioritized based upon the pinch point analysis.
Claims(20)  translated from Chinese
1. 一种无线网状网络,包括: 网关;多个无线设备,其中,每个无线设备向网关提供无线电统计数据和电池状况; 网络管理器,用于调度无线设备和网关之间的通信,并基于由无线设备提供的无线电统计数据来定义网关和无线设备之间的通信路径;以及设备管理器,用于基于无线电统计数据来提供节制点警报,所述节制点警报指示网状网络内存在节制点。 A wireless mesh network, comprising: a gateway; a plurality of wireless devices, wherein each gateway device to provide wireless radio statistics and battery status; Network manager for scheduling communications between wireless devices and the gateway, and based on statistical data provided by the radio of wireless devices to define a communication path between the gateway and the wireless device; and a device manager for radio-based statistics to provide a pinch point alarm, the alarm indication mesh network control point memory pinch point.
2.根据权利要求1所述的无线网状网络,其中,所述设备管理器基于电池状况数据以及与所述电池状况数据的源相关联的实际或潜在的节制点,提供优先化的电池电量低的警报。 2. According to one of the wireless mesh network of claim, wherein the device manager based on the battery status data and the actual or potential control point source associated with the battery status data to provide prioritized battery power low alarm.
3.根据权利要求1所述的无线网状网络,其中,所述无线电统计数据包括以下至少一项:邻居的标识、来自邻居的接收信号强度、与邻居的成功通信的百分率、至每个无线设备的父亲的数目、至每个无线设备的孩子的数目、父亲孩子比、父亲邻居比、以及孩子邻居比。 According to claim 1 wherein the wireless mesh network of claim, wherein the radio statistics include at least one of: the identity of the neighbors, received signal strength from neighbors, percentage of successful communications with neighbors, to each radio the number of devices father, to the number of children of each wireless device, father children than the father than the neighbors, and neighbors than children.
4.根据权利要求1所述的无线网状网络,其中,所述设备管理器基于网关的无线电范围内的无线设备的数目来执行节制点分析。 1 according to the wireless mesh network of claim wherein the device manager of the number of wireless devices within radio range of the gateway performs a pinch point analysis based.
5.根据权利要求1所述的无线网状网络,其中,所述设备管理器基于网关的无线电范围内的无线设备占网络中所有无线设备的百分率,执行节制点分析。 1 according to the wireless mesh network of claim wherein said device manager based on the wireless device within radio range of the gateway network account all percentages wireless devices, perform a pinch point analysis.
6.根据权利要求1所述的无线网状网络,其中,所述设备管理器基于每个无线设备的邻居,执行节制点分析。 According to one of the wireless mesh network of claim, in which each neighbor wireless device based on the analysis of the implementation of the control point 6. Device Manager.
7.根据权利要求6所述的无线网状网络,其中,所述节制点分析包括:评估一个无线设备的邻居的数目相对于网络中每个无线设备的邻居的均值的标准差。 According to claim 6 wherein the wireless mesh network of claim, wherein the control point analysis include: assessment of the number of a neighbor's wireless device with respect to network neighbors each wireless device standard deviation of the mean.
8.根据权利要求1所述的无线网状网络,其中,所述设备管理器基于父亲孩子比,执行节制点分析。 According to one of the wireless mesh network of claim, wherein the device manager is based on the child than the father, executed a pinch point analysis.
9.根据权利要求8所述的无线网状网络,其中,所述节制点分析包括:评估一个无线设备的父亲孩子比相对于网络的父亲孩子比的均值的统计偏差。 According to claim 8, wherein the wireless mesh network, wherein the pinch point analysis includes: Assessing the father of the child of a wireless device with respect to the mean than the father of the child than the network of statistical variation.
10.根据权利要求1所述的无线网状网络,其中,所述设备管理器提供视觉显示,所述视觉显示包括作为节制点的特定无线设备的视觉表示。 10. The wireless mesh network according to claim 1, wherein the device manager provides a visual display, the visual display comprising a control point of the particular wireless device a visual representation.
11. 一种方法,包括:从无线网状网络的无线设备收集无线电统计数据;基于无线电统计数据,确定无线设备的通信路径、父亲孩子关系和通信时隙; 基于无线电统计数据,识别无线网状网络内的节制点;以及产生指示存在节制点的警报。 11. A method, comprising: collecting wireless mesh network from the wireless device radio statistics; statistical data based on the radio, the wireless device determines the communication path, the relationship between the child and the father communication slots; radio-based statistics, identification wireless mesh control point within the network; and generating an alarm indicating the presence of a pinch point.
12.根据权利要求11所述的方法,还包括: 从无线设备接收电池状况数据;以及如果电池电量低的无线设备是节制点,则产生优先化的电池电量低的警报。 12. The method of claim 11, further comprising: receiving from a wireless device battery condition data; and if the battery is low the wireless device is a pinch point, the resulting prioritized low battery alarm.
13.根据权利要求11所述的方法,还包括: 从无线设备接收电池状况数据;以及如果电池电量低的无线设备的失效将引起节制点的出现,则产生优先化的电池电量低的警报。 13. The method of claim 11, further comprising: receiving from a wireless device battery condition data; and failure if the battery is low the wireless device will cause the appearance of a pinch point, the resulting prioritized low battery alarm.
14.根据权利要求1所述的方法,其中,所述无线电统计数据包括以下至少一项:邻居的标识、来自邻居的接收信号强度、与邻居的成功通信的百分率、至每个无线设备的父亲的数目、至每个无线设备的孩子的数目、父亲孩子比、父亲邻居比、以及孩子邻居比。 Father neighbor identification, received signal strength from neighbors, neighbor successful communication with the percentage of each wireless device to: 14. The method according to claim 1, wherein the radio statistics include at least one of The number to the number of children of each wireless device, father children than the father than the neighbors, and neighbors than children.
15.根据权利要求11所述的方法,其中,识别节制点包括:基于网关的无线电范围内的无线设备的数目,执行节制点分析。 15. The method of claim 11, wherein identifying a pinch point includes: the number of wireless devices within radio range of the gateway based on the implementation of a pinch point analysis.
16.根据权利要求11所述的方法,其中,识别节制点包括:基于每个无线设备的邻居, 执行节制点分析。 16. The method of claim 11, wherein the control points include recognition: on a per-neighbor wireless devices to perform a pinch point analysis.
17.根据权利要求11所述的方法,其中,识别节制点包括:基于父亲孩子比、父亲邻居比和孩子邻居比中的至少一项,执行节制点分析。 The method according to claim 11, wherein, wherein identifying control points include 17: Based on the children than the father, executed neighbor than a pinch point analysis father and child ratio of at least one of the neighbors.
18.根据权利要求11所述的方法,还包括:提供视觉显示,所述视觉显示包括作为节制点的特定无线设备的视觉表示。 18. The method according to claim 11, further comprising: providing a visual display, the visual display comprising a control point of the particular wireless device a visual representation.
19. 一种方法,包括:从无线网状网络的无线设备收集无线电统计数据;基于无线电统计数据,确定无线设备的通信路径、父亲孩子关系和通信时隙;从无线设备接收电池状况数据;以及基于电池状况数据和无线电统计数据,产生电池电量低的警报。 19. A method comprising: collecting from the wireless device radio wireless mesh network statistics; statistics on radio, the wireless device determines the communication path, the father child relationship and communication slots; battery status from the wireless device receives data; and Battery condition data based on statistical data and the radio, produce low battery alarm.
20.根据权利要求19所述的方法,其中,如果具有电池电量低的状况的无线设备是节制点,或者无线设备的失效将使无线网状网络中的另一个无线设备变为节制点,则产生优先化的电池电量低的警报。 20. The method of claim 19, wherein the wireless device if you have a low battery condition is a pinch point, or failure of wireless devices will allow wireless mesh network to another wireless device becomes control point, produce prioritized low battery alarm.
Description  translated from Chinese

具有节制点的无线网状网络和电池电量低的警报 Having a control point wireless mesh network and low battery alert

[0001] 相关申请的交叉引用 Cross [0001] REFERENCE TO RELATED APPLICATIONS

[0002] 本申请要求于2008年9月25日递交的美国临时专利申请No. 61/099,959的优先 [0002] This application claims priority to U.S. Provisional Patent Application No. on September 25, 2008, filed 61 / 099,959 priorities

权,并且其全部内容被合并于此作为参考。 Right, and the entire contents of which are incorporated herein by reference.

背景技术 Background

[0003] 无线网状网络是由以网状拓扑组织的多个无线设备(S卩,节点)构成的通信网络。 [0003] The wireless mesh network is a communication network to a plurality of wireless devices (S Jie, nodes) organized in a mesh topology composed of. 在实际的无线网状网络(还可以被称为自组织多跳网络)中,每个设备必须能够针对自身以及网络中的其他设备来路由消息。 In the actual wireless mesh network (may also be called self-organized multi-hop network), each device must be able to route messages for itself and other devices in the network. 由于可以使用较低功率RF无线电,而网状网络可以跨越将消息从一端传送至另一端的相当大的物理区域,因此消息逐节点地跳转在网络中的概念是有益的。 Because of lower power RF radios can be used, but the mesh network can span the message transmitted from one end to the relatively large physical area the other end, so the message by a node in the network to jump concept is useful. 同采用与集中式基站直接通信的远程设备的点对点系统相反,在网状网络中不需要高功率无线电。 With the use of remote devices to communicate directly with the centralized base station opposite point system does not require high-power radio in a mesh network.

[0004] 术语“自组织”是指网状网络形成备选网络以在设备之间以及在设备与数据收集器或者连接至某些更高等级更高速的数据总线的网桥或网关之间进行消息收发的能力。 [0004] The term "self-organization" means a mesh network to form an alternative network in and between the device and the data collector is connected to some higher level or higher-speed data bus between a bridge or gateway device messaging capabilities. 具有无线消息的备选冗余路径,通过即使在另一路径因环境影响或因干扰而受阻或恶化的情况下仍确保存在至少一条供消息流通的备选路径,增强了数据可靠性。 Alternatively redundant paths with wireless message through another path because even in the environmental impact due to interference or obstruction or deterioration of the case still ensure that there is at least one alternative path for message circulation, enhanced data reliability.

[0005] 从每个节点向网桥或网关提供的路径是动态的,这意味着这些路径可以响应于路径受阻或添加新路径而改变。 [0005] from the path of each node to provide a bridge or gateway is dynamic, which means that the path is blocked in response to the path or add a new path to change. 例如,当设备节点试运转时,其将产生能够与之通信的设备(艮P,邻居)的列表。 For example, when the device node commissioning, it will be able to produce devices that can communicate with them (Gen P, neighbors) list. 特别地,该列表可以是随着网络所占用的射频(RF)环境和物理空间的改变(例如,在两个设备之间建造墙或金属屏蔽从而限制设备之间的通信)动态变化的。 In particular, the list may be occupied with the network frequency (RF) environment and physical space change (for example, the construction of a wall between the two devices or metal shield to restrict communication between devices) dynamics. 基于该动态邻居列表,与网关相关联的网络管理器选择父亲/孩子设备,父亲/孩子设备定义了从该设备到网关设备或从网关设备到该设备的通信路径。 Based on this dynamic neighbor list, and network management gateway associated with the selected father / child equipment, the father / child equipment defines the communication path from the device to the gateway device or from the gateway device to the device. 父亲/孩子设备的列表也是动态的,但典型地其动态程度低于邻居列表。 List father / child equipment is also dynamic, but typically dynamic level below the neighbor list. 由于这些动态特性,无线网状网络的组织不断改变。 Due to these dynamic characteristics, organization changing wireless mesh network.

[0006] 一种分析网状网络的操作的方法是:基于由网络提供的邻居列表、父亲孩子列表等,检查网状网络的组织。 [0006] An analysis of the operation of a mesh network is: Based on the neighbor list provided by the network, the father the child list of other organizations, to check the mesh network. 网络组织的改变用于诊断与网络相关联的问题。 Change network organization used to diagnose problems associated with the network's. 分析列表的现有技术方法包括:在用线连接邻居和/或父亲孩子对的图中显示每个节点。 Analysis of the list of prior art methods include: displaying each node neighbor with cable and / or the father of the child diagram.

[0007] 如果无线设备(或多个无线设备)依赖于单个无线设备(或有限数目的无线设备)将其消息路由至网关,则网状网络中可能存在节制点(Pinch point)(或通信瓶颈)。 [0007] If a wireless device (or more wireless devices) relies on a single wireless device (or a limited number of wireless devices) to route messages to the gateway, there may be a pinch point (Pinch point) (or mesh network communication bottlenecks ). 如果无线设备的失效将导致网络中的其他设备不再具有返回至网关的路由,则可以将该设备看作节制点。 If the failure of the wireless device will cause the network to other devices no longer have to return to the gateway of the route, the device can be viewed as a pinch point. 节制点可能对无线网络具有若干负面影响。 Pinch point may have several negative impact on the wireless network.

[0008] 首先,必须通过节制点进行通信的无线设备可能具有降低的通信可靠度。 [0008] First, the need for communication through a pinch point wireless communication devices may have reduced reliability. 第二, 必须通过节制点进行通信的无线设备的带宽可能是受限的,并且网络性能可能受到不利影响。 Second, the need for bandwidth communications of wireless devices may be restricted by control point, and the network performance may be adversely affected. 第三,作为节制点的无线设备将消耗额外的功率来发送增加的消息负载。 Third, as a pinch point wireless device will consume additional power to send a message to increase the load. 这对于电池供电设备(导致缩短的电池寿命)或依赖于能量采集的设备(例如,太阳能供电的设备) 是尤其重要的。 This battery-powered devices (lead to shortened battery life), or rely on energy harvesting device (for example, solar-powered equipment) is particularly important.

[0009] 节制点因多种情况而出现。 [0009] control point occurs due to various circumstances. 例如,节制点可能是糟糕的网络设计或安装、不断改变的RF环境、(对RF环境造成影响的)网络所处的物理空间的改变以及退出服务的无线设备的结果。 For example, the control point may be poor network design or installation, changing RF environment, (environmental impact on RF) changed as a result of the physical space in which the network out of service as well as wireless devices.

[0010] 无线设备或网关不提供关于无线设备是否是节制点的信息。 [0010] The wireless device or gateway does not provide information about the wireless device is a pinch point. 在许多情况下,无线网状网络的用户直到上述一个或多个不利影响出现时才意识到网络中存在节制点。 In many cases, the user of the wireless mesh network until only one or more of the adverse effects appeared aware of the existence of control points in the network. 当用户检测到不利影响时,他或她可以开始检查并以图形方式构建无线设备之间的通信链路的图,从而识别节制点。 When the user detects the adverse effects, he or she can start checking and graphically construct a communication link between wireless devices of FIG to identify control points. 根据无线网状网络的复杂度,该过程可能耗费几分钟到几小时不等。 Depending on the complexity of the wireless mesh network, the process may take a few minutes to several hours. 一旦对网络的通信特性进行了绘图,用户就能够解决引起网络节制点的问题(或多个问题)。 Once communication characteristics of the network are drawing, users will be able to solve the problem (or problems) cause network control points.

[0011] 电池电量低的节制点可能是危急的情形。 [0011] low battery control point may be critical situation. 如果作为节制点的无线设备电源耗尽, 则其无线电将停止工作。 If you run out of control points as the wireless device power, its radio will stop working. 无线网状网络将失去该节制点设备以及依赖该节制点而与网关进行通信的那些其他无线设备。 Wireless mesh network will lose the control point and dependent on the device with the gateway control point and those of other wireless devices to communicate.

[0012] 在其他情况下,因电源损耗而引起的特定无线设备的损耗可能使网络内的另一个设备变为节制点。 [0012] In other cases, the loss due to the power loss caused by a particular wireless device may enable another device within the network into a pinch point. 虽然变为节制点的设备可能仍具有充足的电池电源,但是对无线网状网络性能的负面影响仍将发生。 Although the device into a control point may still have enough battery power, but the negative impact on the performance of wireless mesh network will continue to occur.

[0013] 典型地,无线网状网络中的无线设备向网关报告电池状况以及无线设备正在感测的过程变量的测量值。 [0013] Typically, the measured value wireless mesh network of wireless devices to the Gateway reports battery status, and wireless devices are sensed process variable. 如果识别出电池电量低的警报,那么无线网状网络的用户可以基于由该无线设备产生的测量(过程变量值)的重要性,对电池更换进行优先级排序。 If you recognize the low battery alarm, the user can wireless mesh networks based on the importance of measurement (process variable) is generated by the wireless device, battery replacement prioritize. 然而,这种优先级排序并未考虑到特定无线设备的电池电量低的状况是否会使该无线设备造成节制点失效、是否会使网络内的另一无线设备变为节制点、或者同时发生这两种情况。 However, this prioritization does not take into account the particular wireless device battery power is low status if the wireless device would cause control point failure, whether or cause other wireless devices within the network into a pinch point, or simultaneously this in both cases. 因此, 用户可能未意识到电池电量低的设备可能使其他无线设备的测量处于危险之中。 Therefore, the user may not be aware that the battery is low the device may make other measurements of wireless devices at risk.

发明内容 DISCLOSURE

[0014] 一种无线网状网络,包括:设备管理器,评估由网络的无线设备产生的无线电统计数据,以确定无线网状网络是否具有节制点。 [0014] A wireless mesh network, comprising: a device manager, evaluating the radio network statistics generated by a wireless device to determine whether a wireless mesh network control points. 提供了警报,使得用户能够在对可靠性、带宽或无线设备功率造成不利影响之前对节制点进行补救。 It provides alerts, enabling users to prior adversely affect reliability, bandwidth, or wireless device power control point to be remedied.

[0015] 在另一个实施例中,所述无线网状网络包括:设备管理器,使用电池状况以及无线电统计数据来评估和预测网络性能。 [0015] In another embodiment, the wireless mesh network include: Device Manager, battery status and radio statistical data to assess and predict network performance. 所述设备管理器向用户报警存在作为节制点的电池电量低的无线设备或可能使另一个设备变为节制点的电池电量低的无线设备。 The device manager alerting the user exists as a control point battery is low or wireless device may enable another device into a control point of a low battery wireless devices.

附图说明 Brief Description

[0016] 图1是示出了在主机和现场设备之间路由消息的自组织网状网络系统的图。 [0016] FIG. 1 is a diagram showing the field device between the host and self-organizing mesh network system in routing messages.

[0017] 图2是示出了一种使用邻居信息确定节制点的方法的流程图。 [0017] FIG. 2 is a flowchart illustrating a method of using neighbor information to determine the pinch point methods.

具体实施方式 DETAILED DESCRIPTION

[0018] 图1示出了过程通信系统10,包括:主机计算机12、高速网络14、无线网状网络16 (包括网关18和无线现场设备或节点20a-20i. . . 20N)、以及网络计算机30。 [0018] Figure 1 illustrates a process of the communication system 10, comprising: a host computer 12, high-speed network 14, wireless mesh network 16 (... Includes gateway 18 and wireless field devices or nodes 20a-20i 20N), and network computer 30. 网关18作为网状网络16与高速网络14上的主机计算机12之间的接口。 18 as a mesh network gateway 16 and the host computer 14 on the high-speed network interface 12 between. 可以通过网络14将消息从主机计算机12发送至网关18,然后通过多条不同路径之一将该消息发送至网状网络16中的所选择的节点。 It can send messages over the network 14 from the host computer 12 to gateway 18, and then transmits the message to the mesh network node 16 via the selected one of a plurality of different paths. 类似地,从网状网络16中的各个节点,经由多条路径之一,逐节点地将消息路由通过网状网络16,直到消息到达网关18,然后通过高速网络14将消息发送至主机12。 Similarly, from the mesh network each node 16, via one of multiple paths by nodes to route messages through the mesh network 16, until the message reaches the gateway 18, then 14 is sent to the host computer 12 through the high-speed network messages.

[0019] 主机计算机12可以是分布控制系统主机,运行应用程序以便于向现场设备20a-20N发送消息以及接收并分析包含在来自现场设备20a-20N的消息中的数据。 [0019] The host computer 12 may be a distributed control system host, run the application in order to send messages to the field devices 20a-20N as well as receive and analyze the data contained in messages from the field devices 20a-20N of the. 例如,主机计算机12可以使用AMS (TM)设备管理器,作为允许用户监控现场设备20a-20N并与现场设备20a-20N进行交互的应用程序。 For example, the host computer 12 can use the AMS (TM) Device Manager, as the site allows users to monitor devices 20a-20N and with field devices 20a-20N interactive applications. 例如,主机计算机12可以位于中央控制室中,并可以在控制室操作者屏幕上显示过程信息和警报。 For example, the host computer 12 may be located in the central control room, and can display process information and alert the operator in the control room screen.

[0020] 网关18可以使用多种不同的通信协议,通过网络14与主机计算机12进行通信。 [0020] The gateway 18 may use a variety of different communication protocols, to communicate with the host computer 14 through the network 12. 在一个实施例中,网络14是RS485双线通信链路,网关18可以在该RS485双线通信链路上使用MODBUS协议与主机计算机12进行通信。 In one embodiment, the network 14 is a two-wire communication link RS485, MODBUS protocol gateway 18 can be used with a host computer over the RS485 two-wire communication link 12 for communication. 在另一实施例中,网络14是以太网网络,并且,基于网络14的通信可以使用以太网接口来支持MODBUS TCP/IP。 In another embodiment, the network 14 is an Ethernet network, and 14 based communications network using an Ethernet interface to support MODBUS TCP / IP.

[0021] 网关18和无线设备20a_20N使用无线通信协议进行通信。 [0021] The gateway 18 and wireless devices 20a_20N using wireless communication protocol. 在以下讨论中,作为示例,将使用WirelessHART协议,然而还可以使用可在无线网状网络中使用的其他协议。 In the following discussion, as an example, the use of WirelessHART protocol, but can also use other protocols can be used in a wireless mesh network. WirelessHART协议使用时分多址(TDMA)和信道跳跃来控制无线网络16中的通信。 WirelessHART protocol uses time division multiple access (TDMA) and channel hopping to control the wireless communication network 16. 网络管理器32可以被实现为驻留在网关18上的软件,对无线现场设备20a-20N和网关18之间的通信进行调度。 The network manager 32 may be implemented as resident software in the gateway 18, 18 of the communication between the wireless field devices 20a-20N and gateway performs scheduling. 网络管理器32还定义了网关和各个无线设备20a-20N之间的通信路径。 Network Manager 32 also defines communication paths gateway and each wireless devices 20a-20N between.

[0022] 时分多址(TDMA)利用时隙。 [0022] Time Division Multiple Access (TDMA) time slot utilization. 各个设备之间的通信能够发生在时隙中。 Communication between the individual devices can take place in a time slot. 一系列时隙被定义为形成TDMA超帧。 It is defined as a series of slots formed TDMA superframe. 网络管理器32确定哪些设备被分配至超帧中的特定时隙以进行通信。 The network manager 32 determines which device is assigned to a particular slot in the superframe for communication. 对网络中的所有设备进行时间同步,以形成通信。 All devices on the network time synchronization to form a communication. 网络管理器32还分配特定的信道和频率,所分配的设备将在特定时隙期间在所述特定的信道和频率上进行通信。 Network Manager 32 also assign a specific channel and frequency, the assigned device will communicate on the particular channel and frequency during a particular time slot.

[0023] 网络管理器32定义了供消息从网关18传播至各个无线设备20a_20N的通信路径以及消息从无线设备20a-20N返回至网关18的通信路径。 [0023] The network manager 32 for information dissemination to define the respective wireless device 20a_20N communication path, and a message from the gateway 18 from the wireless device 20a-20N return to the communication path 18 of the gateway. 网络管理器32使用从无线设备20a-20N中的每一个接收的信息来分配消息的路径。 Network manager 32 using the path from the wireless device 20a-20N to each message received assignment message. 在每个无线设备或节点的试运转期间, 节点与其他节点进行通信以确定其邻居。 During commissioning of each wireless device or node, the node communicates with other nodes to determine its neighbors. 邻居被定义为与无线设备进行活动通信的设备或网关。 Places are defined as devices with a wireless device or gateway active communication. 在每个通信期间,每个无线设备测量来自和去往邻居的接收信号强度(RSSI)。 During each communication, each wireless device measures the received signal strength from and to neighbors (RSSI). 每个无线设备还产生周期性地报告的路径稳定性、RSSI以及关于与其邻居的无线通信的其他无线电统计数据。 Path stability of each wireless device also generates periodic reports, RSSI, and other statistical data on wireless radio to communicate with its peers.

[0024] 网络管理器32利用邻居信息和RSSI信息,确定要用于传出和返回消息的通信路径。 [0024] The network manager 32 exploit neighbor information and RSSI information, identify the outgoing and return to be used for the communication path message. 针对每个消息路径,网络管理器32识别该路径的各个跳跃或链路的父亲节点和孩子节点。 For each message path, the network manager 32 to identify the father nodes and child nodes for each jump or links that path. 父亲是针对另一设备(该父亲的孩子)使通信经过其自身的设备。 Father for another device (the father of the child) of the communication through its own devices. 孩子是通过另一个设备(该孩子的父亲)进行通信以到达第三设备或网关的设备。 Children are communicating through another device (the child's father) to reach the third device or gateway device. 邻居可以是父亲或孩子。 Neighbor may be the father or child. 虽然图1示出了仅具有单个网络18的无线网状网络16,但是在其他实施例中,可以包括多于一个网关。 Although FIG. 1 shows a wireless mesh network with only a single network of 16 18, in other embodiments, it may include more than one gateway. 在这种情况下,网关共享网络管理器32,使得同一无线协议(在这种情况下是WirelessHART)在整个无线网状网络16中操作。 In this case, the gateway shared network manager 32, so that the same wireless protocol (in this case WirelessHART) operate the entire wireless mesh network 16.

[0025] 例如,网络计算机30可以是由维护人员用于监控无线网络16和给无线网络16提供服务的计算机。 [0025] For example, the network computer 30 may be used by the maintenance staff to monitor the wireless network 16 and to the wireless network 16 to provide computer services. 例如,网络计算机30可以位于仪器和电气(I&E)维护车间中。 For example, the network computer 30 may be located on the instrument and electrical (I & E) maintenance workshop. 设备管理器34(例如,可以是来自爱默生过程管理的AMS(TM)设备管理器和AMS无线SNAP-ON)可以是运行在网络计算机30上的应用程序。 Device Manager 34 (AMS (TM), for example, can be from Emerson Process Management Device Manager and AMS Wireless SNAP-ON) the application can be run on a network computer (30). 设备管理器34用于向维护人员提供关于无线网状网络16内存在节制点的警报以及关于无线设备中电池电量低的状况的警报。 Device manager 34 used to provide wireless mesh network 16 of memory alert and in control points on a wireless device low battery condition alerts to maintenance personnel. 设备管理器34还可以向用户告知节制点的影响或可能影响,并可以建议如何可以解决节制点带来的问题。 Device manager 34 may also inform the user control points affect or may affect, and can suggest how to solve the problems caused by the pinch point.

[0026] 无线设备20a_20N中的每一个周期性地向网关18报告无线电统计数据。 [0026] Each wireless device 20a_20N report statistics to the radio gateway 18 periodically. 网络管理器32使用这些无线电统计数据来确定通信路径并分配时隙。 Network Manager 32 uses these statistics to determine a radio communication path and assigns time slots. 设备管理器34也可以使用无线电统计数据,确定实际或潜在节制点的存在。 Device Manager can also be used 34 radio statistical data to determine the actual or potential presence of a pinch point. 无线电统计数据可以包括:邻居的标识、 来自每个邻居的接收信号强度(RSSI)、去往每个邻居的接收信号强度(RSSI)、与每个邻居的成功通信的百分率(路径稳定性的指示)、至特定设备或节点的父亲和孩子的数目、父亲孩子比、父亲邻居比、和孩子邻居比、以及该设备是否处于网关18的范围内。 Radio statistical data can include: identification of a neighbor, received signal strength from each neighbor (RSSI), go to the received signal strength of each neighbor (RSSI), indicating the percentage of successful communication with each of its neighbors (the path of stability ), to a number of specific devices or nodes father and child, father children than the father than the neighbors, and neighbors than the children, and whether the device is within range of the gateway 18. 在一段时间内收集这些无线电统计数据,并以例如大约15分钟的间隔报告这些无线电统计数据。 These radio statistics collected over a period of time, e.g., about 15 minutes and to report these intervals the radio statistics.

[0027] 每个设备还感测过程的参数(例如,温度、压力、流速、液平面),并根据网络管理器32所确定的调度向网关18发送包含所测量的过程变量在内的消息。 [0027] Each device has a sense of the parameters (such as temperature, pressure, flow rate, fluid level) measurement process and sending process, including variable contains the measured according to the determined network manager 32 dispatch messages to the gateway 18. 连同过程变量数据一起,每个无线设备20a-20N还提供与该设备的操作状况有关的诊断数据。 Together with the process variable data together, each wireless device 20a-20N also provide the device with operating conditions associated diagnostic data. 诊断信息包括电源信息。 Diagnostic information includes power information. 对于那些电池供电的设备,诊断信息包括电池状况的指示。 For those battery-powered devices, diagnostic information including battery status indicator. 诊断信息由网关18 接收,并通过网络14被提供给网络计算机30和设备管理器34。 Diagnostic information is received by the gateway 18, and 30 are provided to the network computer and network equipment manager 34 through 14.

[0028] 设备管理器34使用由网关18从无线设备20a_20N接收的无线电统计数据,针对节制点,分析无线网络16。 [0028] The device manager 34 is used by the gateway 18 receives from the wireless device 20a_20N radio statistics for the pinch point, analyze wireless network 16. 设备管理器34可以通过多种不同方式(单独或结合地)使用信息来识别节制点。 Device manager 34 can be in many different ways (alone or in combination) using the information to identify control points. 例如,与网关18范围内的无线设备的数目有关的信息可以被用作节制点状况的指示。 For example, the number of wireless devices within a range of information about the gateway 18 can be used as an indication of a pinch point condition. 如果网关18范围内存在少于3个设备,或者如果网关18范围内设备的数目相对于网络16中所有设备的总数低于特定百分率(例如,小于10% ),则可能存在一个或多个节制点。 If the range of the gateway 18 in less than three memory devices, or if the number of the range of the gateway device 18 with respect to the total number of all the devices in the network 16 is below a certain percentage (e.g., less than 10%), there may be one or more control point.

[0029] 另一种识别节制点的方式是使用邻居的数目。 [0029] Another way is to identify the number of control points using neighbors. 如果特定设备具有异常多的邻居, 这可能指示了该设备是节制点。 If a particular device has an unusually large number of neighbors, this may indicate that the device is a pinch point. 在结合图2描述的另一方法中,可以使用每个设备相对于其邻居的单独分析,识别哪些设备是节制点。 In another method described in conjunction Figure 2, you can use a separate analysis of each device in relation to its neighbors, to identify which device is the control point.

[0030] 另一种根据无线电统计数据识别节制点的方法使用每个节点的父亲孩子比。 [0030] Another father than children of each node based on statistical data identifying the radio control point approach. 如果设备具有异常大或异常小的父亲孩子比,则可以将其识别为节制点。 If the device has an unusually large or unusually small children than fathers, it can be recognized as a pinch point. 网络内父亲孩子比与均值的统计偏差也可以被设备管理器34用作节制点的指示。 Father and child in the network than the average of statistical variation can also be used to indicate the device manager 34 control points. 可以使用其他比率(如父亲邻居比或孩子邻居比)来执行类似的分析。 You can use other ratios (such as the father or the child than the neighbors than the neighbors) to perform a similar analysis.

[0031] 特定设备处的邻居数目相对于网络16内每个设备的邻居的平均数的统计偏差可以指示所讨论的设备是节制点。 [0031] The number of neighbors at a specific device in the network with respect to the statistical deviation 16 neighbors of each device averages may indicate the device in question is a pinch point.

[0032] 当设备管理器34识别出无线网状网络16内的节制点时,设备管理器34通过网络计算机30向维护人员提供警报。 [0032] When the device manager 34 recognizes the pinch point wireless mesh network 16 within the device manager 34 provides an alert to the maintenance personnel via the network 30. 该警报指示存在节制点,并能够通过设备数目或通过视觉表示来识别作为节制点的特定设备。 This alarm indicates the presence of a pinch point, and can be identified by the number of devices or a visual representation of the device by a specific control points. 在提供警报时,设备管理器34可以提供视觉显示,其中,结合设备20a-20N所处的空间的视觉表示来表示各个设备20a-20N。 In providing an alarm, the device manager 34 may provide a visual display, wherein the device 20a-20N combine visual representation of the space in which to represent individual devices 20a-20N. 这种显示的示例在2009 年2 月27 日递交的、名称为“System for Visualizing Design and Organization of Wireless Mesh Networks and Physical Space” 的共同待审申请No. 12/394, 399 中有描述,该共同待审申请被转让给与本申请相同的受让人,并且其全部内容被合并于此作为参考。 Co-pending application No. This example shows in February 27, 2009, filed, entitled "System for Visualizing Design and Organization of Wireless Mesh Networks and Physical Space" is 12/394, 399, are described in the joint pending application is assigned to the same assignee of the present application, and the entire contents of which are incorporated herein by reference.

[0033] 当来自无线设备20a_20N之一的诊断信息指示电池电量低的状况时,设备管理器34可以优先化电池电量低的警报,其中,所述电池电量低的警报是基于报告电池电量低的状况的设备自身是否是可能的节制点或者在其失效时是否将引起可能的节制点而提供的。 [0033] When the diagnostic information from the wireless device 20a_20N one indication of a low battery condition, the device manager 34 can prioritize the low battery alarm, wherein the low battery alert is based on low battery report whether the device status itself is possible pinch point or whether its failure would cause a possible pinch point provided. 设备管理器34可以使用现有的无线电统计数据来确定报告电池电量低的状况的设备当前是否是可能的节制点。 Device manager 34 can use existing radio statistical data to determine the device reports a low battery condition is currently a possible pinch point. 设备管理器34还可以执行分析,以便在报告电池电量低的状况的设备不再存在于无线网状网络16内的情况下,识别可能的节制点。 When the device manager 34 can also perform analysis to equipment during the reporting low battery condition no longer exists in the wireless mesh network 16, to identify possible pinch point.

[0034] 通过结合所报告的电池电量低的状况针对无线网状网络16执行节制点分析,设备管理器34可以向用户提供优先化的电池电量低的警报。 [0034] By combining the reported low battery condition for a wireless mesh network 16 perform a pinch point analysis, equipment manager 34 can provide a prioritized low battery alert to the user. 通常,将首先在预期的电源失效之前一些时间报告电池电量低的状况。 Typically, the first time to report a low battery condition prior to the expected power failure. 通过提供与节制点有关的电池状况优先级的指示, 向用户提供提早针对报告电池电量低的状况的无线设备更换电池电源的临界状态的指示。 By providing priority control point instructions on battery condition, to provide users with wireless devices for early report indicating a low battery condition Replace battery power of critical state. 采用该方式,可以对维护进行调度,以便首先进行最高优先级的电池更换。 With this approach, the maintenance can be scheduled to be the highest priority first battery replacement.

[0035] 如前所述,存在多种不同的可以识别节制点的方式。 [0035] As mentioned above, there are many different ways to identify control points. 用于分析来自无线设备的无线电统计数据的特定方法或方法的组合可以不同。 Or a combination of methods for the analysis of a particular method from the wireless device radio statistics may be different. 图2示出了一种方法,该方法使用由无线设备提供的邻居信息来识别节制点。 Figure 2 illustrates a method of using the neighbor information provided by the wireless device to identify the control points. 该方法允许在无需设备的父亲/孩子信息的情况下识别节制点。 The method allows to identify pinch points when his father without equipment / child information.

[0036] 该方法首先消除不具有邻居的所有所识别出的设备。 [0036] In this method, all the neighbors do not have to eliminate the identified device. 例如,这些设备可以是曾经在网络16中活动但已被撤销或更换或者不再操作的设备。 For example, these devices can be once it has been revoked or replace the network 16 or are no longer active in the operation of the device. 如图2所示,执行对剩余设备的测试。 As shown in Figure 2, a test of the remaining equipment.

[0037] 图2是示出了评估每个被测试的无线设备X以确定其是否是节制点的流程图。 [0037] FIG. 2 is a diagram showing the assessment of each wireless device X being tested to determine whether it is a flowchart of control points. 当识别出设备X以进行测试时(步骤50),设备管理器34开始测试过程(步骤5。起初,设备管理器34假定没有无线设备能够到达网关16 (步骤54)。接着,设备管理器34访问具有邻居的设备的列表(不包括设备X)。对于具有邻居的设备的列表中的每个设备A(步骤56),设备管理器34确定设备A是否以网关作为邻居(步骤58)。 When X recognizes the device for testing (step 50), the device manager 34 to start the test procedure (step 5. Initially, the device manager 34 assumes no wireless devices can reach the gateway 16 (step 54). Subsequently, the device manager 34 A neighbor list of access devices (excluding equipment X). For a list of equipment with a neighbor of each device A (step 56), the device manager 34 determines whether the device A gateway as neighbors (step 58).

[0038] 如果答案是肯定的,则设备管理器34将设备A添加至能够到达网关的设备的列表(步骤60)。 [0038] If the answer is affirmative, the device manager 34 adds the device A list of devices to be able to reach the gateway (step 60). 设备管理器34还将设备A从无法到达网关的设备的列表中移除(步骤62)。 Device Manager A 34 will be removed from the device can not reach the gateway of the list (step 62). 接着,设备管理器34前进至列表中的下一设备A (步骤64)。 Subsequently, the device manager 34 proceeds to the next device in the list A (step 64). 备选地,如果在步骤58,设备A不以网关为邻居,则设备管理器34前进至下一设备A(步骤64)。 Alternatively, if at step 58, the device A is not the gateway as a neighbor, the device manager 34 proceeds to the next device A (step 64).

[0039] 接着,设备管理器34前进至测试无法到达网关的设备的列表中的每个设备B (步骤66)。 [0039] Subsequently, the device manager 34 proceeds to test the gateway can not reach the list of devices in each device B (step 66). 设备管理器34确定设备B是否具有处于能够到达网关的设备的列表中的邻居(步骤68)。 Device manager 34 determines whether device B can reach the gateway device in the list of neighbors (step 68). 如果设备B具有处于能够到达网关的设备的列表中的邻居,则将设备B添加至能够到达网关的设备的列表(步骤70),并且将设备B从无法到达网关的设备的列表中移除(步骤72)。 If the device B has to reach the gateway device in the list of neighbors, then device B is added to the list of devices to reach the gateway (step 70), and the device B is removed from the list does not reach the gateway of the ( Step 72).

[0040] 接着,设备管理器34从步骤72前进至测试下一设备B (步骤74)。 [0040] Subsequently, the device manager 34 proceeds from step 72 to test the next device B (step 74). 如果步骤68的询问的答案是否定的(即,设备B不具有处于能够到达网关的设备的列表中的邻居),则设备管理器前进至下一设备B (步骤74)。 If the inquiry at step 68, the answer is negative (ie, device B does not have a list is able to reach the gateway of the neighbor), the device manager proceeds to the next device B (step 74).

[0041] 如果存在另一个要测试的设备B,则设备管理器34返回至步骤66并重复上述步骤。 [0041] If another device to be tested B exists, the device manager 34 returns to step 66 and repeat the steps above. 继续该过程,直到测试完最后一个设备B。 Continue this process until you have tested the last device B. 此时,设备管理器34确定无法到达网关的设备的列表是否为空(步骤76)。 In this case, the device manager 34 determines whether the list can not reach the gateway device is empty (step 76). 如果答案是肯定的,则将设备X识别为不是节制点(步骤78),并且测试结束(步骤80)。 If the answer is yes, then the device is not recognized as a pinch point X (step 78), and the test is completed (step 80).

[0042] 另一方面,如果无法到达网关的设备的列表不为空,则设备管理器34确定是否在最近一次迭代中将设备从无法到达网关的设备的列表中移除(步骤82)。 [0042] On the other hand, if you can not reach the list of devices Gateway is not empty, the device manager 34 determines whether the most recent iteration of the device will be removed from the list of equipment can not reach the gateway (step 82). 如果答案是肯定的,则设备管理器34返回至步骤66。 If the answer is affirmative, the device manager 34 returns to step 66. 如果答案是否定的,则将设备X识别为节制点(步骤84)。 If the answer is no, then the device is identified as a pinch point X (step 84). 此时,过程结束(步骤80)。 In this case, the process ends (step 80). 针对被识别为在网状网络16中具有邻居的每个设备X, 重复图2所示的过程。 Is identified as having a neighbor device X in each mesh network 16, the process is repeated as shown in FIG. 2 for. 当使用图2的方法测试完所有设备时,设备管理器34具有被识别为节制点的设备的完整列表。 When using 2 methods tested all equipment, equipment manager 34 control points have been identified as a complete list of devices.

[0043] 图2所示的方法具有以下优势:仅使用邻居信息来进行节制点识别。 The method shown in [0043] FIG. 2 has the following advantages: Use only neighbor information to identify control points. 该方法可以单独使用,或与所描述的其他方法中的任一方法结合使用。 The method may be used alone, or in combination with other methods described in any of the methods.

[0044] 尽管参照示例实施例对本发明进行了描述,但是本领域技术人员将理解,在不脱离本发明的范围的情况下,可以进行各种改变并且用等效物替换其元素。 [0044] Although the reference to an exemplary embodiment of the present invention has been described, those skilled in the art will appreciate that, without departing from the scope of the present invention may be made various changes and replace it with the equivalent elements. 此外,可以在不脱离本发明的范围的情况下进行多种修改,以使特定情形或材料适于本发明的教导。 In addition, many modifications may be made without departing from the scope of the present invention, so as to adapt a particular situation or material to the teachings of the present invention. 因此,本意上,本发明不限于所公开的特定实施例,相反本发明将包括落在所附权利要求的范围内的所有实施例。 Therefore, the intention, the present invention is not limited to the specific embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Classifications
International ClassificationH04W84/18, H04W40/24
Cooperative ClassificationH04W8/22, H04W84/18, H04W52/0225, Y02B60/50
European ClassificationH04W8/22, H04W52/02T4
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24 Aug 2011C06Publication
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30 Jul 2014C14Grant of patent or utility model