WO2016169071A1

WO2016169071A1 - Digital information transmission method and device for terminal based on proximity sensor

Info

Publication number: WO2016169071A1
Application number: PCT/CN2015/078813
Authority: WO
Inventors: 李云
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-04-23
Filing date: 2015-05-12
Publication date: 2016-10-27
Also published as: CN106162518A

Abstract

Disclosed are a digital information transmission method and device for a terminal based on a proximity sensor, which relate to the technical field of wireless communications. The method comprises the following steps: a mobile phone acting as a sending terminal and a mobile phone acting as a receiving terminal use respective proximity sensors to establish a communication link; after the communication link is established, the sending terminal enables and disables the proximity sensor thereof by means of binary 0 and 1 information, and generates an interrupted signal corresponding to the binary 0 and 1 information; and the receiving terminal uses the proximity sensor thereof to receive the interrupted signal so as to obtain the binary 0 and 1 information about the sending terminal. In the present invention, a complex external circuit is not needed, and the design is simple and easy to achieve, thereby facilitating the reducing of costs of a terminal product.

Description

Terminal digital information transmission method and device based on proximity sensor

Technical field

The present invention relates to the field of wireless communication technologies, and in particular, to a terminal digital information transmission method and apparatus based on proximity sensors.

Background technique

At present, the data transmission methods on mobile devices are various. From wired to wireless, the speed is from high to low. The basic principle is to convert the original data information into digital signals, and send and receive the information through some modulation method, and then Revert to raw data. Most smartphones on the market are equipped with proximity sensors, which can emit infrared light and receive optical signals to determine whether an object is approaching or moving away, and report it to the application processor (AP) chip. If the object is close, the mobile phone AP is notified. The chip turns off the liquid crystal display (LCD) backlight to reduce the power consumption of the system. When it is away, the mobile phone AP chip is notified to turn on the LCD.

In this paper, the proximity sensor can transmit and receive optical signals to achieve close-range, non-radiative point-to-point (P2P) secure communication.

1. Proximity sensor:

The proximity sensor itself has an infrared emitting light emitting diode (LED) and an infrared light detecting two-part module. The infrared emitting portion can be turned on or off by an external processor, and the infrared receiving portion can detect the received light intensity, and the output value can be read by an external processor. In general, the mobile phone AP chip controls the infrared emitting module to emit infrared light, and the infrared light detector detects the amount of reflected infrared light through the internal infrared detector. When an object is in the infrared emission path, most of the infrared light is reflected back to the inside. In the infrared detector, the detector can determine the proximity or in a distant state of the object by judging the amount of the received infrared light, and then the proximity sensor can report the state to the AP chip of the mobile phone through the interruption, and the AP chip controls the mobile phone. The features you need.

2, digital information

In modern digital communication, information is represented by basic binary numbers. 0 and 1 are used to represent two different states. All complex information can be converted into a string represented by only 0 and 1 by a specific transformation, and information is represented by binary. It is very conducive to the storage and transmission of information, which forms the basis of modern digital communication.

Summary of the invention

The embodiment of the invention provides a method and a device for transmitting digital information of a terminal based on a proximity sensor, so as to at least solve the problem that the prior art has a complicated transceiver circuit and is not advantageous for miniaturization of the product.

According to an aspect of an embodiment of the present invention, a proximity sensor-based terminal digital information transmission method is provided, including the following steps:

The mobile phone as the transmitting terminal and the mobile phone as the receiving terminal establish a communication link by using respective proximity sensors;

After establishing the communication link, the transmitting terminal generates a chopping signal corresponding to binary 0 and 1 information by turning on and off its proximity sensor with binary 0 and 1 information;

The receiving terminal receives the discontinuous signal with its proximity sensor, thereby obtaining binary 0 and 1 information of the transmitting terminal.

Preferably, the transmitting terminal generates the intermittent signal corresponding to the binary 0 and 1 information by turning the proximity sensor on and off with the binary 0 and 1 information, including:

The transmitting terminal generates a first chopping signal corresponding to the binary 0 information by turning off its proximity sensor with binary 0 information;

The transmitting terminal generates a second intermittent signal corresponding to the binary 1 information by turning on its proximity sensor with binary 1 information.

Preferably, the receiving terminal receives the discontinuous signal by using the proximity sensor, so that the binary 0 and 1 information of the transmitting terminal is obtained:

And receiving, by the receiving terminal, the data packet of the binary 0 and 1 information sent by the transmitting terminal when the second intermittent signal is received by the proximity sensor.

Preferably, the method further comprises:

The transmitting terminal converts the original information to be transmitted into a data packet of binary 0 and 1 information, and saves the data packet to the buffer area of the transmitting terminal.

Preferably, the method further comprises:

After receiving the plurality of data packets of the binary 0 and 1 information sent by the transmitting terminal, the receiving terminal restores the binary 0 and 1 information included in the received plurality of data packets to original information, and Saved to the buffer area of the receiving terminal.

Preferably, the sending terminal respectively sends verification information to the plurality of data packets in which the binary 0 and 1 information is sent to the receiving terminal, so as to distinguish the data packet by using the verification information.

According to another aspect of the embodiments of the present invention, a proximity sensor-based terminal digital information transmission apparatus is provided, including:

Establishing a communication link module, and setting a communication link between the mobile phone as the transmitting terminal and the mobile phone as the receiving terminal by using respective proximity sensors;

Generating a chopping signal module, configured to, after establishing the communication link, the transmitting terminal generates a chopping signal corresponding to binary 0 and 1 information by turning on and off its proximity sensor with binary 0 and 1 information;

The receiving module is configured to receive, by the receiving terminal, the discontinuous signal by its proximity sensor, thereby obtaining binary 0 and 1 information of the transmitting terminal.

Preferably, the generating the discontinuous signal module comprises:

a first chopping signal unit, configured to: the transmitting terminal generates a first chopping signal corresponding to the binary 0 information by turning off its proximity sensor with binary 0 information;

A second chopping signal unit is arranged to generate, by the transmitting terminal, a second chopping signal corresponding to the binary 1 information by turning on its proximity sensor with binary 1 information.

Preferably, the receiving module comprises:

The receiving unit is configured to receive, when the receiving terminal receives the second intermittent signal by using the proximity sensor, the data packet of the binary 0 and 1 information sent by the transmitting terminal.

Preferably, the method further comprises:

And a saving unit configured to convert the original information to be transmitted into a data packet of binary 0 and 1 information, and save the data packet to a buffer area of the transmitting terminal.

Compared with the prior art, the beneficial effects of the present invention are:

The embodiment of the invention realizes basic half-duplex communication by approaching the light sensor; in contrast, the NFC technology similar to the scope of use requires complex external circuits, special transceiver chips and large-area coil antennas, thereby increasing product cost. And the complexity of the design is not conducive to the miniaturization of the terminal products; and the medium and long-distance transmission protocol equipment such as Bluetooth is complicated, involving more standard patents, which is not conducive to cost reduction of the product; the infrared transceiver module requires a special module circuit; The circuit is simple and can be an effective complement to the close-to-point point-to-point communication method.

DRAWINGS

1 is a flowchart of a method for transmitting digital information of a terminal based on a proximity sensor according to an embodiment of the present invention;

2 is a schematic diagram of a terminal digital information transmission apparatus based on a proximity sensor according to an embodiment of the present invention;

3 is a schematic diagram of processing of proximity transmitter signals of two mobile terminals according to an embodiment of the present invention;

FIG. 4 is a flowchart of data transmission and reception between two mobile terminals according to an embodiment of the present invention.

detailed description

The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

FIG. 1 is a flowchart of a method for transmitting digital information of a terminal based on a proximity sensor according to an embodiment of the present invention. As shown in FIG. 1 , the method includes the following steps:

Step S101: the mobile phone as the transmitting terminal and the mobile phone as the receiving terminal establish a communication link by using respective proximity sensors;

Step S102: after establishing the communication link, the transmitting terminal generates a discontinuous signal corresponding to the binary 0 and 1 information by turning on and off its proximity sensor by using binary 0 and 1 information;

Step S103: The receiving terminal receives the discontinuous signal by using its proximity sensor, thereby obtaining binary 0 and 1 information of the transmitting terminal.

Wherein the transmitting terminal generates the intermittent signal corresponding to the binary 0 and 1 information by turning on and off its proximity sensor with binary 0 and 1 information, including: the transmitting terminal closes its proximity by using binary 0 information. a sensor that generates a first chopping signal corresponding to binary 0 information; the transmitting terminal uses two The binary 1 information turns on its proximity sensor, producing a second intermittent signal corresponding to the binary 1 information. Receiving, by the receiving terminal, the discontinuous signal by its proximity sensor, thereby obtaining binary 0 and 1 information of the transmitting terminal, when the receiving terminal receives the second intermittent signal by using the proximity sensor thereof, Receiving a data packet of binary 0 and 1 information transmitted by the transmitting terminal.

The embodiment of the present invention further includes: the sending terminal converts the original information to be transmitted into a data packet of binary 0 and 1 information, and saves the data packet to the buffer area of the sending terminal.

The embodiment of the present invention further includes: after receiving the plurality of data packets of the binary 0 and 1 information sent by the sending terminal, the receiving terminal restores the binary 0 and 1 information included in the received plurality of data packets. It is the original information and is saved to the buffer area of the receiving terminal.

The sending terminal sends check information to each of the plurality of data packets that send the binary 0 and 1 information to the receiving terminal, so as to distinguish the data packet by using the check information.

FIG. 2 is a schematic diagram of a terminal digital information transmission device based on a proximity sensor according to an embodiment of the present invention. As shown in FIG. 2, the method includes: establishing a communication link module 201, generating a discontinuous signal module 202, and receiving a module 203. Establishing a communication link module 201, the mobile phone configured as the transmitting terminal and the mobile phone as the receiving terminal establish a communication link by using respective proximity sensors; the generating the discontinuous signal module 202 is configured to establish the communication link Thereafter, the transmitting terminal generates a chopping signal corresponding to the binary 0 and 1 information by turning on and off its proximity sensor with binary 0 and 1 information; the receiving module 203 is configured to use the proximity sensor of the receiving terminal The discontinuous signal is received to obtain binary 0 and 1 information of the transmitting terminal.

Specifically, the generating the chopping signal module 202 includes: a first chopping signal unit, configured to generate, by the transmitting terminal, a first chopping signal corresponding to the binary 0 information by turning off the proximity sensor with the binary 0 information. a second chopping signal unit configured to cause the transmitting terminal to generate a second chopping signal corresponding to the binary 1 information by turning on its proximity sensor with binary 1 information. The receiving module 203 includes: a receiving unit, configured to receive a data packet of binary 0 and 1 information sent by the sending terminal when the receiving terminal receives the second intermittent signal by using the proximity sensor.

The present invention further includes a saving unit configured to convert the original information to be transmitted into a data packet of binary 0 and 1 information, and save the data packet to a buffer area of the transmitting terminal.

FIG. 3 is a schematic diagram of the proximity transmitter signal processing of two mobile terminals provided by the embodiment of the present invention. As shown in FIG. 3, the mobile phone A and the mobile phone B are included.

1. First convert the information to be transmitted into binary data, that is, the sequence represented by only 0 and 1, put the data into the buffer for later use, and then control the infrared emission LED close to the light sensor through the AP chip, with these 0, 1 sequences. Turn the infrared emission LED on and off. The AP chip control LED is turned off to indicate information 0, and the LED is turned on to indicate information 1. In this way, the transmitter used in data communication can be obtained. The presence and absence of infrared light indicate information 1 and 0. If there is a receiving device that can sense the change of light, the change at the transmitting end can be read.

2. Since there is an infrared light detecting part inside the proximity sensor, it can sense the intensity change of the received infrared light. When the received infrared light exceeds or falls below a certain threshold, an interrupt signal will be generated to inform the mobile phone. The optical signal outside the AP chip has changed. The AP chip reads the data close to the optical sensor. If the reading is greater than the high light intensity threshold, the value is 1, and the light intensity threshold is 0. The error between the two thresholds indicates error. . Generally, the threshold value of high light intensity is greater than the value of low light intensity threshold.

3. In order to realize data transmission, it is necessary to have two mobile phone proximity light sensors open at the same time. The data interaction between the two mobile phones is in the half-duplex communication mode, that is, the A mobile phone only turns on the infrared emission LED close to the light sensor, and the LED turns on and off to indicate the transmission of the 1 and 0 information, and the B mobile phone only opens the infrared detection of the proximity light sensor. The module, through the cooperation with the mobile phone AP chip, receives the information sequence of 1 and 0, receives the information and stores it in the corresponding cache to be processed, and then converts the AP chip into another information form. This completes the transmission and reception of basic information, and its signal flow diagram is shown in Figure 1.

4. In order to enhance the quality of communication, the transmitted information can be packaged with a specific coding tool so that it contains verification information. When the receiving end receives a packet, it will verify the received information, if it appears. The error message discards the received information; a certain handshake interaction is required at the time of establishing the communication link, that is, the sequence in which the A mobile phone sends the request communication, and after receiving the reply sequence of the allowed communication sent by the B mobile phone within the specified time, the transmission is continued. The next data packet; if there is no reply, it will wait for the specified time to resend. If there is no reply after repeated retransmission, the communication will be interrupted.

FIG. 4 is a flowchart of data transmission and reception between two mobile terminals according to an embodiment of the present invention. As shown in FIG. 4, the method includes the following steps:

The first step: at the data originating end (mobile phone A), the original data is divided and packaged by the data conversion module, converted into a data sequence suitable for transmission by the proximity sensor, stored in the mobile phone data buffer, waiting for the AP controller to access, and then Go to the next step.

Step 2: The AP controller (mobile phone A) controls the proximity light sensor according to the sequence of 0 and 1. The preset LED is sent by the infrared LED, and then waits for the mobile phone B to respond. At this time, the B mobile phone opens the light. The sensor receives the path. If the A mobile phone does not receive the response packet of the consent link sent back by the mobile phone B within the specified time (for example, 1 ms), the mobile phone A will send the request again, if there is no B mobile phone within the specified number of requests (for example, 10 times) In response, the A mobile phone interrupts the request and returns the information requesting the failure to the user. If you receive a packet with the consent link from the B mobile phone method and receive it from the A mobile phone, the mobile phone A starts to send the data to be transmitted next.

Step 3: After the A and B mobile phones establish a link, the A mobile phone starts to send the first data packet to the B mobile phone, and then the A mobile phone waits for the B mobile phone to receive the normal response packet. If the A mobile phone does not receive the correct response from the B mobile phone within the specified time (for example, 1ms), the A mobile phone resends the data packet just sent at a certain time interval; if it exceeds the specified number of times (for example, 10 times), the A mobile phone returns If the B mobile phone sends a response packet within the specified time and within the specified number of times and receives it by the A mobile phone, the A mobile phone starts to send a second data packet, and each data packet has a packet header of sequence information. Used to distinguish the order of several packets before and after. And so on, until all the data is sent, and finally send the end packet to the B mobile phone to end the transmission. And report the completed information to the A mobile phone.

Step 4: The B mobile phone immediately sends a response packet with the consent link after receiving the request packet of the A mobile phone for the first time; if the data packet is received, the CRC check is performed first, and if the data is correct, it is stored. The internal buffer of the mobile phone is sent to the mobile phone A to receive the normal response packet; if the received data is incorrect, the data is discarded; if the next data packet is received and the serial number of the data packet in the cache is the same, the packet is discarded. For the data packet in the cache, the mobile phone B is directly transmitted to the data processing module and parsed into the original data for use by the mobile phone. If the end message sent by the mobile phone A is received, the received information is reported to the B mobile phone, and finally the received data is parsed and restored to the transmitted original data.

The invention realizes the digital information transmission between two mobile phones by using the proximity sensor, and has the following significant advantages:

1. It broadens the application range of proximity sensors and realizes a new mobile phone data transmission method, providing users with a richer experience.

2. The use of proximity light sensor as data communication is short-acting, no electromagnetic radiation, high communication concealment, low power and no radiation to the human body, and can be effectively supplemented by other wired and wireless data transmission methods.

3. No complicated external circuit is needed, the design is simple and easy to implement, which is beneficial to the cost reduction of the terminal products.

Although the invention has been described in detail above, the invention is not limited thereto, and various modifications may be made by those skilled in the art in accordance with the principles of the invention. Therefore, modifications made in accordance with the principles of the invention are to be understood as falling within the scope of the invention.

Industrial applicability

As described above, a proximity sensor-based terminal digital information transmission method and apparatus provided by the embodiments of the present invention have the following beneficial effects: a new mobile phone data transmission method is implemented, using a proximity light sensor as a Data communication has short acting distance, no electromagnetic radiation, high communication concealment, low power and no radiation to the human body, and can be effectively supplemented by other wired and wireless data transmission methods. In addition, no complicated external circuit is required, and the design is simple and easy to implement, which is beneficial to the cost reduction of the terminal product.

Claims

A terminal digital information transmission method based on proximity sensor, comprising the following steps:

The mobile phone as the transmitting terminal and the mobile phone as the receiving terminal establish a communication link by using respective proximity sensors;

After establishing the communication link, the transmitting terminal generates a chopping signal corresponding to binary 0 and 1 information by turning on and off its proximity sensor with binary 0 and 1 information;

The receiving terminal receives the discontinuous signal with its proximity sensor, thereby obtaining binary 0 and 1 information of the transmitting terminal.
The method according to claim 1, wherein said transmitting terminal generates a chopping signal corresponding to binary 0 and 1 information by turning on and off its proximity sensor with binary 0 and 1 information, including:

The transmitting terminal generates a first chopping signal corresponding to the binary 0 information by turning off its proximity sensor with binary 0 information;

The transmitting terminal generates a second intermittent signal corresponding to the binary 1 information by turning on its proximity sensor with binary 1 information.
The method according to claim 2, wherein said receiving terminal receives said discontinuous signal with its proximity sensor, thereby obtaining binary 0 and 1 information of the transmitting terminal comprises:

And receiving, by the receiving terminal, the data packet of the binary 0 and 1 information sent by the transmitting terminal when the second intermittent signal is received by the proximity sensor.
The method of claim 1 further comprising:

The transmitting terminal converts the original information to be transmitted into a data packet of binary 0 and 1 information, and saves the data packet to the buffer area of the transmitting terminal.
The method of claim 4, further comprising:

After receiving the plurality of data packets of the binary 0 and 1 information sent by the transmitting terminal, the receiving terminal restores the binary 0 and 1 information included in the received plurality of data packets to original information, and Saved to the buffer area of the receiving terminal.
The method according to any one of claims 1 to 5, wherein the transmitting terminal respectively sets verification information to a plurality of data packets transmitting binary 0 and 1 information to the receiving terminal, so as to utilize the verification information. Distinguish the packet.
A terminal digital information transmission device based on proximity sensor, comprising:

Establishing a communication link module, and setting a communication link between the mobile phone as the transmitting terminal and the mobile phone as the receiving terminal by using respective proximity sensors;

Generating a chopping signal module, configured to, after establishing the communication link, the transmitting terminal generates a chopping signal corresponding to binary 0 and 1 information by turning on and off its proximity sensor with binary 0 and 1 information;

The receiving module is configured to receive, by the receiving terminal, the discontinuous signal by its proximity sensor, thereby obtaining binary 0 and 1 information of the transmitting terminal.
The apparatus of claim 1 wherein said generating a discontinuous signal module comprises:

a first chopping signal unit, configured to: the transmitting terminal generates a first chopping signal corresponding to the binary 0 information by turning off its proximity sensor with binary 0 information;

A second chopping signal unit is arranged to generate, by the transmitting terminal, a second chopping signal corresponding to the binary 1 information by turning on its proximity sensor with binary 1 information.
The apparatus of claim 2 wherein said receiving module comprises:

The receiving unit is configured to receive, when the receiving terminal receives the second intermittent signal by using the proximity sensor, the data packet of the binary 0 and 1 information sent by the transmitting terminal.
The apparatus according to claim 7, further comprising:

And a saving unit configured to convert the original information to be transmitted into a data packet of binary 0 and 1 information, and save the data packet to a buffer area of the transmitting terminal.