WO2017140220A1

WO2017140220A1 - Data sending method and device, receiving method and device, and transmission method and system

Info

Publication number: WO2017140220A1
Application number: PCT/CN2017/072981
Authority: WO
Inventors: 严勇文
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-02-19
Filing date: 2017-02-06
Publication date: 2017-08-24
Also published as: CN107104729A

Abstract

Disclosed are a data sending method and device, a receiving method and device, and a transmission method and system. The transmission method comprises: acquiring data to be sent; compiling the data to be sent into binary information; sending the binary information via a light-emitting diode (LED); using a camera to capture an LED state of a data-sending terminal, parsing the LED state to acquire the binary information; and interpreting the binary information into data to be received.

Description

Data transmitting method and device, receiving method and device, transmission method and system

Technical field

The present disclosure relates to the field of data transmission, for example, to a data transmission method and apparatus, a reception method and apparatus, a transmission method, and a system.

Background technique

In the field of communication equipment, competition is fierce and the cost is low. It is an important factor in determining the success of a device. Therefore, communication equipment often reduces unnecessary components and functions, reduces product size, or controls panel size to reduce costs. Communication devices tend to gradually reduce hardware devices for human-computer interaction, such as liquid crystal displays or digital tubes. Therefore, some communication devices have only one northbound communication interface to communicate with the superior device. Such a communication device can be directly connected to a personal computer (Personal Computer, PC) into a debugging interface (such as an Internet (Web) page), but the online device should not be offline for maintenance reasons, therefore, the communication device should There is a channel for debugging output.

In order to solve the above problem, you can add a DB9 serial port, RJ (Registered Jack) 45 network port or Universal Serial Bus (USB) port as a debugging interface, through the debugging interface, communication between the smart device or computer and the added debugging interface. Device communication. However, the above debugging interface still needs to occupy a part of the printed circuit board (PCB) and the panel, and the debugging interface and its auxiliary resistors, capacitors and integrated circuits (ICs) still need a certain cost.

In practical applications, some communication devices only need to know their Internet Protocol (IP) address, and can access the Web debugging interface of the communication device through the browser, thereby achieving the purpose of debugging and maintaining the device, and debugging and maintenance. The process does not affect the online communication of the communication device with other devices. Commissioning and maintenance personnel can only perform debugging and maintenance work by knowing the IP address information of the device at the site. The methods for obtaining the IP address include: obtaining from the NMS and obtaining from the debugging interface. However, taking into account the actual process, communication cost, and correctness of information transmission, it is not convenient to obtain the IP address of the device from the NMS. Obtaining from the on-site debugging interface has become a more common method. If a debug interface such as DB9 or RJ45 is added to obtain simple information such as an IP address, the cost competitiveness of the product will decrease.

Therefore, how to provide a data transmission method that can solve the need to increase the debugging interface to transmit debug data is a technical problem to be solved by those skilled in the art.

Summary of the invention

The present disclosure provides a data transmitting method and apparatus, a receiving method and apparatus, a transmitting method and a system, and transmitting debug data without adding a debugging interface.

The present disclosure provides a data sending method, including:

Obtain data to be sent;

Compile the data to be sent into binary information;

The binary information is transmitted through the LEDs.

Optionally, sending the binary information through the LED comprises: transmitting 0 and 1 in the binary information by the LED being off.

Optionally, the sending the binary information by using the LED includes: transmitting the binary information by using a dedicated debugging LED that is set; controlling the power LED in the debugging state by the multiplex power LED to send the binary information; and operating the debugging state by using the multiplexed operation LED The LED transmits the binary information; the binary LED is sent by the multiplexed alarm LED to control the alarm LED in the debug state.

Optionally, compiling the data to be sent into binary information includes: compiling the data to be sent into binary information by using a frame structure of the device code, the field 1, the field 2, the ..., the field n, and the check code, and the device code includes At least one of a device internet protocol IP address and a device access password, the field i includes a value i corresponding to the identifier i and the identifier i, 1 ≤ i ≤ n, and i and n are integers.

Optionally, sending the binary information through the LED comprises: determining the number of LEDs according to a physical transmission protocol, and transmitting the binary information by using a corresponding number of LEDs.

The present disclosure provides a data receiving method, including:

Using the camera to capture the LED status of the data transmitting terminal;

Parsing the LED status to obtain binary information;

Interpret the binary information as data to be received.

Optionally, parsing the LED state to obtain binary information includes: determining 0 and 1 in the binary information by using an off state of the LED.

Optionally, the use of the camera to capture the LED status of the data transmitting terminal comprises: using a brightness recognition method of the color model to identify the off state of the LED, and if the brightness is greater than a preset threshold, the LED The status is bright. If the brightness is not greater than the preset threshold, the LED status is off.

Optionally, before the LED state of the data transmitting terminal is captured by using the camera, the method further includes: setting a purifying device around the LED of the data transmitting terminal, and capturing the LED state of the data transmitting terminal by using the camera through the purifying device.

Optionally, before the LED state of the data transmitting terminal is captured by using the camera, the method further includes: setting an identification area, placing an LED of the data transmitting terminal according to the identification area, and capturing an LED state in the identification area of the data transmitting terminal by using the camera.

Optionally, using the camera to capture the LED status of the data transmitting terminal includes: using an image processing algorithm of corrosion and expansion to remove noise from the captured image of the camera, and calculating an area of the LED in the image, when the area of the area and the area of the identified area When the percentage is greater than the percentage threshold, the LED status is on, and when the percentage is not greater than the percentage threshold, the LED status is off.

Optionally, the use of the camera to capture the LED status of the data transmitting terminal comprises: continuously collecting images through the camera framing mode to identify the continuous image; or recording the video through the recording mode of the camera, and decomposing the video into multiple frames, respectively The multi-frame image is identified.

The present disclosure provides a data transmission method, including:

Obtain data to be sent;

Compiling the data to be sent into binary information;

Sending binary information through the LEDs;

Using the camera to capture the LED status of the data transmitting terminal;

Parsing the LED status to obtain binary information;

Interpret the binary information to receive the data.

The present disclosure provides a data transmitting apparatus, including:

Obtaining a module, configured to obtain data to be sent;

Compiling the module, set to compile the data to be sent into binary information;

The transmitting module is configured to send binary information through the LEDs.

Optionally, the sending module is configured to send 0 and 1 in the binary information by the LED being off.

Optionally, the sending module is configured to send binary information through the set dedicated debugging LED; the binary LED is sent by the power LED that controls the debugging state through the multiplexed power LED; and the running LED transmitting station in the debugging state is controlled by the multiplexed running LED Said binary information; or by means of a multiplexed alarm LED to control the alarm LED in the debug state to send binary information.

Optionally, the compiling module is configured to use the frame structure of the device code, the field 1, the field 2, the ..., the field n, and the check code combination to compile the data to be sent into binary information, and the device code includes the device Internet Protocol IP address and At least one of the device access passwords, the field i includes the identifier i and the identifier i corresponding to the value i, 1 ≤ i ≤ n, and i and n are integers.

Optionally, the sending module is configured to determine the number of LEDs according to a physical transmission protocol, and send binary information through a corresponding number of LEDs.

The present disclosure provides a data receiving apparatus, including:

The acquisition module is configured to capture the LED status of the data transmitting terminal by using the camera;

Parsing module, set to parse the LED state to obtain binary information;

The interpretation module is configured to interpret the binary information as data to be received.

Optionally, the parsing module is configured to determine 0 and 1 in the binary information by the LED being off.

Optionally, the collection module is configured to adopt a brightness recognition method of the color model to identify the off state of the LED. If the brightness is greater than a preset threshold, the LED status is bright, and if the brightness is not greater than a preset threshold, the LED status is For the end.

Optionally, before using the camera to capture the LED status of the data sending terminal, the collecting module is further configured to set a purifying device around the LED of the data sending terminal, and use the camera to capture the LED status of the data sending terminal through the purifying device.

Optionally, before using the camera to capture the LED status of the data transmitting terminal, the collecting module is further configured to set an identification area, and the LED of the data transmitting terminal is placed according to the identifying area, and the LED state of the data transmitting terminal in the identification area is captured by using the camera.

Optionally, the acquisition module is configured to adopt an image processing algorithm of corrosion and expansion to remove noise from the captured image of the camera, and calculate a maximum area of the LED in the image. When the percentage of the area of the largest area and the area of the identification area is greater than a percentage threshold, The LED state is bright, and when the percentage is not greater than the percentage threshold, the LED state is off.

Optionally, the collection module is configured to continuously collect images by using the camera to take a photographing mode, and identify the continuous image; or, by using the camera to record the video in the recording mode, the video is decomposed into multiple frames, and the multiple frames are respectively The image is identified.

The present disclosure provides a data transmission system including any of the data transmitting apparatus provided by the present disclosure and the data receiving apparatus provided by any one of the present disclosure;

The data transmitting device is configured to acquire data to be transmitted, compile the data to be transmitted into binary information, and transmit binary information through the LEDs;

The data receiving device is configured to capture the LED status of the data transmitting terminal using the camera, parse the LED status to obtain binary information, and interpret the binary information as data to be received. The present disclosure also provides a non-transitory computer readable storage medium storing computer executable instructions arranged to perform the above method.

The disclosure also provides a data sending terminal, including:

At least one processor;

a memory communicatively coupled to the at least one processor; wherein

The memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to cause the at least one processor to perform the following method:

Obtain data to be sent;

Compiling the data to be transmitted into binary information;

The binary information is transmitted by a light emitting diode LED.

The present disclosure also provides a data receiving terminal, including:

At least one processor;

a memory communicatively coupled to the at least one processor; wherein

Using the camera to capture the LED status of the data transmitting terminal;

Parsing the LED status to obtain binary information;

The binary information is interpreted as data to be received.

The present disclosure provides a data transmission method, based on the LED transmission debugging data of the device, and the LED can be used as a power indication and a running instruction when the data is not transmitted, without adding an additional debugging interface to transmit the debugging data.

DRAWINGS

1 is a schematic structural diagram of a data transmission system according to a first embodiment of the present disclosure;

2 is a flowchart of a data transmission method according to a second embodiment of the present disclosure;

3 is a diagram showing an unpurified effect of an LED lamp in a third embodiment of the present disclosure;

4 is a diagram showing the effect of purifying the LED lamp in the third embodiment of the present disclosure;

FIG. 5 is a flowchart of an image recognition algorithm in a third embodiment of the present disclosure; FIG.

6 is a schematic structural diagram of a data frame in a third embodiment of the present disclosure;

7 is a flowchart of a data transmission method in a third embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of hardware of a data transmitting terminal according to a fifth embodiment of the present disclosure;

FIG. 9 is a schematic diagram showing the hardware structure of a data receiving terminal in a fifth embodiment of the present disclosure.

detailed description

The disclosure will be explained by way of specific embodiments in conjunction with the accompanying drawings.

First embodiment

1 is a schematic structural diagram of a data transmission system according to a first embodiment of the present disclosure. As can be seen from FIG. 1, in the present embodiment, the data transmission system provided by the present disclosure includes a data transmitting apparatus 1 and a data receiving apparatus 2.

The data transmitting device 1 is configured to acquire data to be transmitted, compile the data to be transmitted into binary information, and transmit binary information through a Light Emitting Diode (LED).

The data receiving device 2 is arranged to capture the LED status of the data transmission terminal using the camera, parse the LED status to acquire binary information, and interpret the binary information as data to be received.

In some embodiments, as shown in FIG. 1 , the data transmitting apparatus 1 provided by the present disclosure may include: an obtaining module 11 , a compiling module 12 , and a sending module 13 .

The obtaining module 11 is configured to acquire data to be transmitted.

The compilation module 12 is arranged to compile the data to be transmitted into binary information.

The transmitting module 13 is arranged to transmit binary information via the LEDs.

In some embodiments, the sending module 13 in the above embodiment may also be configured to transmit 0 and 1 in the binary information by the LED being off.

In some embodiments, the sending module 13 in the above embodiment may further be configured to send binary information through a set dedicated debug LED; the power LED in the debug state is controlled by the multiplex power LED to transmit the binary information; The operation LED of the LED control in the debug state transmits the binary information; or the binary LED is sent by the multiplexed alarm LED to control the alarm LED in the debug state.

In some embodiments, the compiling module 12 in the above embodiment is configured to compile the data to be sent into binary information by using a frame structure of device code, field 1, field 2, ..., field n, and check code combination. The code includes at least one of a device IP address and a device access password, and the field i includes the identifier i and the identifier i corresponding to the value i, 1 ≤ i ≤ n, and i and n are integers.

In some embodiments, the transmitting module 13 in the above embodiment is configured to determine the number of LEDs according to a physical transmission protocol, and to transmit binary information through a corresponding number of LEDs.

In some embodiments, as shown in FIG. 1 , the data receiving apparatus 2 provided by the present disclosure may include an acquisition module 21 , a parsing module 22 , and an interpreting module 23 .

The acquisition module 21 is arranged to capture the LED status of the data transmitting terminal using the camera.

The parsing module 22 is configured to parse the LED status to obtain binary information.

The interpretation module 23 is arranged to interpret the binary information as data to be received.

In some embodiments, the parsing module 22 in the above embodiment may also be configured to determine 0 and 1 in the binary information by the off state of the LED.

In some embodiments, the acquisition module 21 in the above embodiment may further be configured to use a brightness recognition method of a color model to identify an off state of the LED. If the brightness is greater than a preset threshold, the LED state is bright. If the brightness is not greater than the preset threshold, the LED status is off.

In some embodiments, the acquisition module 21 in the above embodiment may further be configured to set a purification device around the LED of the data transmission terminal before capturing the LED state of the data transmission terminal by using the camera, and use the camera to capture the data transmission terminal through the purification device. LED status.

In some embodiments, the acquisition module 21 in the above embodiment may further be configured to set an identification area before the LED light state of the data transmission terminal is captured by using the camera, and place the LED of the data transmission terminal according to the identification area, and use the camera to capture data transmission. The status of the LEDs in the identification area of the terminal.

In some embodiments, the acquisition module 21 in the above embodiment may also be configured to adopt an image processing algorithm of corrosion and expansion to remove noise from the captured image of the camera, and calculate the maximum area of the LED in the image, when the maximum area and the area are identified. When the percentage of the area of the area is greater than the percentage threshold, the LED status is on, and when the percentage is not greater than the percentage threshold, the LED status is off. The area of the identification area is the area of the frame image.

In some embodiments, the acquisition module 21 in the above embodiment may further be configured to continuously capture images in a photographing and framing mode using a camera to identify continuous images; or, use a camera to record video in a recording mode, and decompose the video into A multi-frame image is separately identified for the multi-frame image.

Second embodiment

FIG. 2 is a flowchart of a data transmission method according to a second embodiment of the present disclosure.

In step 210, data to be transmitted is acquired, data to be transmitted is compiled into binary information, and binary information is transmitted through the LED.

In step 220, the camera is used to capture the LED status of the data transmitting terminal, parsing the LED status to obtain binary information, and interpreting the binary information to be received.

In some embodiments, the present disclosure provides a data sending method, including:

Obtain data to be sent;

Compile the data to be sent into binary information;

Send binary information through the LED.

In some embodiments, transmitting the binary information by the LED in the above embodiment may include transmitting 0 and 1 in the binary information by the off state of the LED light.

In some embodiments, the transmitting the binary information by the LED in the above embodiment may include: transmitting the binary information through the set dedicated debug LED; and controlling the power LED in the debug state to transmit the binary information by multiplexing the power LED; The operation LED that runs the LED control in the debug state sends the binary information; or by multiplexing the alarm LED, the alarm LED that is in the debug state is sent to send binary information.

Wherein, when the communication device is not in the debugging state, the power LED is used to indicate the power status, the running LED is used to indicate the running state of the communication device, and the alarm LED is used to indicate whether there is a warning.

In some embodiments, the compiling the data to be sent into the binary information in the foregoing embodiment may include: adopting a frame structure of the device code, the field 1, the field 2, the ..., the field n, and the check code combination, and the data to be sent Compiled into binary information, the device code includes at least one of a device IP address and a device access password, and the field i includes a value i corresponding to the identifier i and the identifier i, 1≤i≤n, and i and n are integers.

In some embodiments, transmitting the binary information by the LED in the above embodiment may include determining the number of LEDs according to a physical transmission protocol, and transmitting the binary information by a corresponding number of LEDs. The physical transmission protocol may be a user-defined transmission protocol. For example, the physical protocol of the two LEDs may include: a first LED analog clock signal, a second LED analog data signal, and a clock bus high level (such as an LED) When it is lit, if the state of the data bus does not change, the level of the data bus represents data information.

In some embodiments, the present disclosure provides a data receiving method, including:

Use the camera to capture the LED status of the data sending terminal.

Parsing the LED status to obtain binary information;

Interpret the binary information as data to be received.

In some embodiments, the parsing the LED state in the above embodiment to obtain the binary information may include determining 0 and 1 in the binary information by the off state of the LED.

In some embodiments, the use of the camera to capture the LED status of the data transmitting terminal in the above embodiment includes: using a brightness recognition method of the color model to identify the off state of the LED, and if the brightness is greater than a preset threshold, the LED status If it is bright, if the brightness is not greater than the preset threshold, the LED status is off.

In some embodiments, the data receiving method in the foregoing embodiment, before using the camera to capture the LED status of the data transmitting terminal, further includes: setting a purifying device around the LED of the data transmitting terminal, and capturing the data transmitting terminal by using the camera through the purifying device LED status.

In some embodiments, the data receiving method in the foregoing embodiment, before using the camera to capture the LED status of the data transmitting terminal, further includes: setting an identification area, placing an LED of the data transmitting terminal according to the identification area, and capturing the image in the identification area by using the camera The data transmitting terminal is in the state of the LED in the identification area.

In some embodiments, the use of the camera in the above embodiment captures the LED shape of the data transmitting terminal The state includes: an image processing algorithm using corrosion and expansion, removing noise from the captured image of the camera, and calculating a maximum area of the LED in the image. When the percentage of the area of the largest area and the area of the identification area is greater than a percentage threshold, the LED state is bright. When the percentage is not greater than the percentage threshold, the LED state is off.

After removing the noise of the captured image of the camera, the LED in the image is identified, and the identified LED area may include some small areas, and the identified at least one LED area is sorted according to the area, and the LED area with the largest area is used as the LED. The largest area, the area of the largest area is taken as the maximum area area. The area of the identification area is the area of the frame image.

In some embodiments, using the camera to capture the LED status of the data transmitting terminal in the above embodiment may include: continuously acquiring an image in the photographing framing mode using the camera to identify the continuous image; or recording the video in the recording mode using the camera. , the video is decomposed into multi-frame images, and the multi-frame images are respectively identified.

Wherein, in the photographing and framing mode, the transmitting terminal recognizes the image after acquiring one frame of image.

Third embodiment

For products with high cost pressure, in the debugging and maintenance of the product, a small amount of core information needs to be output. For such products, a data transmission system is provided, and the devices in the system pass the LEDs in both the on and off states, and simulate 1 With the output of 0, the information output of the wire is replaced by the propagation of light to achieve the same effect as the binary information transmitted by the bus. The state of the LED is captured by the camera of the smart device, and the corresponding relationship between the on and off of the LED and the 1 and 0 is resolved according to the algorithm, and the same effect as the sampled digital electrical signal is achieved. The device and system adopt device LED and intelligent device image recognition algorithm to simulate the process of transmitting electrical information of the device through serial port (or communication interface such as network port) and transmitting and analyzing information by the receiving device. During the simulation, the sampling rate of the smart device is low (the number of frames taken by the camera is low), and the LED state transition cannot be too fast, which affects the transmission rate. Therefore, the system is not suitable for systems that process many debug data. The system in the implementation of the present disclosure has low cost, small space and small occupied area, and can be applied to devices and systems that can be debugged and maintained only by IP or wireless password. The present disclosure is also applicable to scenarios other than LEDs for providing human identifiable signals. The binary signal is transmitted by accelerating the LED state transition, and the LED signal is captured and decoded by the image recognition of the smart device, and the LED can be applied to a new scene application that outputs more information. In new scene applications of LEDs, the methods of the present disclosure may be extended but not limited to the following devices and systems. When the communication device is not in the debugging state, the communication device with an alarm LED reflects whether the system has an alarm by turning on and off the alarm LED.

By using the method of the present disclosure to improve the above device, the alarm LED can flash at a faster rate, and the information such as an identification (ID) and an alarm level are transmitted according to the coding requirement, and the maintenance personnel recognizes and analyzes the LED information through the smart device, and the device The alarm ID and alarm level are displayed on the smart device, so that the maintenance personnel can know the status of the device and system being maintained. Although the maintenance personnel cannot judge the detailed information represented by the LED flashing through the human eye, it is possible to know whether the LED is blinking or not, and determine whether there is an alarm information. The device's alarm LED function is still retained.

In the application, the data transmitting terminal can set a dedicated debugging LED cycle output debugging information. The data transmitting terminal can also output debugging information by means of multiplexing LEDs. When the debugging button is pressed, the LED is in the debugging state, and the LED outputs debugging information. After the debugging is completed, the debugging button is bounced, and the LED restores the original function.

In an application, the smart device has an image recognition function in which the LED is turned off, and the smart device includes a smart phone and a portable computer (notebook) having a camera. The smart device can install the software for image recognition in the present disclosure. After the software is turned on, the software obtains image information directly or indirectly transmitted by the camera, and uses image processing algorithms to parse the image information.

LED-aware applications can have cross-platform capabilities. For cross-platform and development-saving investments, a cross-platform Python object-oriented interpreted computer programming language can be used. The program developed by PYTHON can be run on the Windows, Linux and Mac OS operating systems of the PC in addition to the Android operating system of the smart device and the iPhone Operating System (IOS). This implementation can also be implemented in a programming language other than Python.

The application of the existing image recognition library can reduce the development cost. In this embodiment, the OPENCV image recognition library can be used for development, which reduces the workload of the basic image recognition and improves the development speed of the smart device. The flow of the LED recognition algorithm is shown in Figure 5.

Since the LEDs have different colors and different shapes, the LEDs cannot be identified according to the color and shape. In this embodiment, the brightness of the HSV (Hue, Saturation, Value) color model can be used to identify the LEDs on and off. When the brightness is greater than the preset threshold of the experiment, the LED is determined to be bright, and when the brightness is not greater than the preset threshold, the LED is off.

By improving the purity of the environment, it is possible to improve the success rate of LED lighting, and it is easy to generate a certain misidentification due to the difference in the environment around the LED. As shown in FIG. 3 and FIG. 4, the present disclosure can adopt the following method to improve the purity of the environment, using a black card, forming a circular hole in the middle, and placing the LED in the device. The camera area of the smart device should be completely inside the black card, so that the environment of the camera has a good purity, LED lighting and LED extinction can produce significant brightness contrast. In this embodiment, a card other than black may be used. The material of the card, the position of the punching hole, and the number of punching holes are not limited. For example, a 2-hole dark tape or the like may be used.

The determination success rate of LED illumination can be improved by limiting the LED position. When the position of the LED in the image is uncertain, for example, the LED is not fixed in the image due to the unfixed distance between the camera and the LED, which may result in LED Light up and misjudge. In the image recognition software, a circular display of a suitable size can be added to prompt the user to completely cover the circular area in the middle of the image of the LED. The image recognition software can determine the LED light on and off based only on the HSV value in the circular area. Under the camera, due to halo and angle, the circular LED may not appear circular after HSV conversion or grayscale processing and filtering. By adopting the circular limitation of the present embodiment, factors such as irregular shapes and chromatic aberrations around the LED, which are disadvantageous to image recognition, can be removed, and the success rate of determination of LED light-off is improved, and the shape of the LED of the present embodiment is not limited to a circular shape. When the LED is circular or square, the restricted area of the image recognition software can be adapted to change to the corresponding shape.

LED identification can use corrosion and expansion image processing algorithms to remove noise. Due to the diversity of the shape of the LED, the maximum area of the image is calculated. When the percentage of the area of the largest area and the area of the identification area is greater than the threshold of the set restriction area (eg, 85%), it can be determined that the LED is bright, when the percentage is not When it is greater than the percentage threshold, the LED is off. In this implementation, in addition to the use of corrosion and expansion algorithms to remove noise, noise filtering algorithms such as two-way filtering and Gaussian filtering can also be used.

In the continuous determination of the LED on and off, the LED information is continuously output, and the camera can be converted into multi-picture continuous processing in the following two ways: the camera adopts the photographing and framing mode, and copies the same picture from the driver to the image recognition application. (Application, APP), realizes dynamic recognition; and the camera adopts the recording mode. After recording for a period of time (also can be detected by the human eye, the start and end LED states indicate the end of the recording), the image recognition APP decomposes each frame of the video. Re-identify the image for a separate image.

In order to enable the LED image to be captured for each frame of the camera, the state transition rate of the LED can be set to be no greater than the frame rate of the camera. When the frame rate is greater than 25 FPS (Frames Per Second), the sampling frequency of the camera can be greater than that of the LED. The frequency of the LED is doubled, so the LED's on-off frequency can be less than 12FPS. If the smart device used by the maintenance personnel has a higher camera frame rate, such as 60FPS or 120FPS, the LED can be turned on and off at a rate greater than 12FPS.

Each LED is equivalent to an electrical conductor, and different numbers of LEDs can be transmitted using different protocols. In this embodiment, a 2LED method in which the cost and the engineering application are relatively balanced can be adopted. In the physical transport protocol, the first LED can emulate the clock bus and the second LED can emulate the data bus. In the physical transmission protocol, when the clock bus is high (if the LED is on), if the state of the data bus does not change, the level of the data bus represents data information; when the clock bus is high, if the data bus is high The conversion of the flat (such as LED is bright) to low level (such as LED is off) represents the beginning of data transmission; when the clock bus is high, if the data bus has a low to high transition, it represents data. The transfer ends. In order to reduce the instability occurring in the LED state transition, in this embodiment, the data bus sampling time when the clock bus is high level may be greater than or equal to 3 times, and the first and last sampling are discarded, and only the middle is used. Sampling data. Embodiments of the present disclosure do not limit the definition of other numbers of LEDs and corresponding physical transport protocols.

Since LED transmission is slow communication, the simpler the frame structure, the faster the information acquisition speed in engineering applications. As shown in FIG. 6, the frame structure adopted in this embodiment may include: device code (Device_code), field 1 identifier (ID1), field 1 data (Value1), field 2 identifier (ID2), field 1 data (Value2), ..., field n identification (IDn), field n data (Value n), and check code (CRC). Since the LED information is output, there is no phenomenon of determining the separated frame when the multi-frame continuous output is performed. Therefore, the frame header and the frame tail may not be added in the frame structure to save transmission time. The device code can take 1 byte. ID is the unique identification of the variable (the same variable of different data structure can be defined by different IDs, for example, the integer IP address and the string IP address belong to different IDs, which can simplify the data structure), and the ID can take 1 byte. . When Value is an integer or a floating point number, it can be output according to the number of bytes defined by the ID. When Value is a string, the ending identifier is '\0'. Considering the image recognition error rate of the LED, in this embodiment, the data can be verified by adding an 8-bit Cyclic Redundancy Check (CRC). When the CRC does not pass, the smart device can prompt the maintenance personnel to restart. Conduct the identification process.

The IP information acquisition process is shown in FIG. 7, wherein the A device has an operation light, an alarm light, and an LED debugging button. In the process of obtaining the IP information, the two-hole black soft glue is attached to the communication device, so that the running light and the warning light pass through the two holes to open the light; the image recognition APP corresponding to the smart device is opened, the space template is selected, or the sampling circle is manually adjusted. Position (let the two sampling circles fall in the middle of the two LED halos, no need to focus successfully); press the LED debugging button of the device, the running light and the warning light are temporarily changed to the LED debugging output interface; the APP detects After the initial identification, the prompt starts, and after the end identification is detected, the prompt ends; if the binary information in the collected image has a CRC check code, after the CRC check, Prompt if the sampling was successful. After the debugging information output process of the device is finished, the running light is restored to indicate the running status of the device, and the alarm light returns to the indicated alarm state. The engineering personnel can log in to the device based on the parsed IP information, and the parameters can be modified. The vacancy template may be a rectangular or circular frame set in an image collection screen of the image recognition APP.

In an application, when IP information is in an integer structure, IP information can have few transmission bytes. The level of the initial identifier is opposite to the level of the end identifier. Therefore, the start identifier and the end marker can be set to 2 cycles each, so the frame structure of the binary information is a 2-bit (bit) identifier, 8-bit device. A code (device code), an 8-bit field identifier (ID), an 8-bit field data (Value), an 8-bit check code (CRC), and a 2-bit end identifier (end), that is, a total of 36 Bit data. The image recognition APP of the smart device selects the low-resolution recording mode, the shooting frame rate can reach 60FPS, and the data sampling can adopt the 4-time mode (abandon the first data and the last data, take the middle two data), and the LED can be pressed 7.5. HZ frequency output, a total of 4.8 seconds to complete the information analysis, that is, the engineering staff can complete the acquisition of IP information within 5 seconds.

The present disclosure provides a data transmission method, based on the LED transmission debugging data of the device, and the LED can be used as a function of indicating an operating state and an alarm condition when the data is not transmitted, and does not occupy a dedicated device, and can be transmitted without adding a debugging interface. Debug data.

Fourth embodiment

Embodiments of the present disclosure also provide a non-transitory computer readable storage medium storing computer executable instructions arranged to perform the method of any of the above embodiments.

Fifth embodiment

The embodiment of the present disclosure further provides a hardware structure diagram of a data sending terminal. Referring to FIG. 8, the data transmitting terminal includes:

At least one processor 80, which is exemplified by a processor 80 in FIG. 8; and a memory 81, may further include a communication interface 82 and a bus 83. The processor 80, the communication interface 82, and the memory 81 can complete communication with each other through the bus 83. Communication interface 82 can be used for information transfer. The processor 80 can call the logic instructions in the memory 81 to perform the following methods:

Obtain data to be sent;

Compiling the data to be transmitted into binary information;

The binary information is transmitted by a light emitting diode LED.

In addition, the logic instructions in the memory 81 described above may be implemented in the form of a software functional unit and sold or used as a stand-alone product, and may be stored in a computer readable storage medium.

The memory 81 is used as a computer readable storage medium, and can be used to store a software program, a computer executable program, a program instruction or a module corresponding to the execution method of the data transmitting terminal in the embodiment of the present disclosure. The processor 80 executes a function application and data processing by executing a software program, an instruction or a module stored in the memory 81, that is, a method of implementing the execution of the data transmitting terminal in the above method embodiment.

The memory 81 may include a storage program area and an storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to use of the terminal device, and the like. Further, the memory 81 may include a high speed random access memory, and may also include a nonvolatile memory.

The embodiment of the present disclosure further provides a hardware structure diagram of a data receiving terminal. Referring to FIG. 9, the data receiving terminal includes:

At least one processor 90, which is exemplified by a processor 90 in FIG. 9; and a memory 91, may further include a communication interface 92 and a bus 93. The processor 90, the communication interface 92, and the memory 91 can complete communication with each other through the bus 93. Communication interface 92 can be used for information transfer. The processor 90 can call the logic instructions in the memory 91 to perform the following methods:

Using a camera to capture the status of the LED light of the data transmitting terminal;

Parsing the LED status to obtain binary information;

The binary information is interpreted as data to be received.

In addition, the logic instructions in the memory 91 described above may be implemented in the form of a software functional unit and sold or used as a stand-alone product, and may be stored in a computer readable storage medium.

The memory 91 is used as a computer readable storage medium, and can be used to store a software program, a computer executable program, a program instruction or a module corresponding to the execution method of the data receiving terminal in the embodiment of the present disclosure. The processor 90 executes a function application and data processing by executing a software program, an instruction or a module stored in the memory 91, that is, a method of implementing the execution of the data receiving terminal in the above method embodiment.

The memory 91 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to usage of the terminal device, and the like. Further, the memory 91 may include a high speed random access memory, and may also include a nonvolatile memory.

The technical solution of the present disclosure may be embodied in the form of a software product stored in a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) Performing all or part of the steps of the method of the embodiments of the present disclosure. The foregoing storage medium may be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random storage memory (RAM), a magnetic disk, or an optical disk. A medium that can store program code, or a transitory storage medium.

Industrial applicability

The data transmitting method and device, the receiving method and device, the transmitting method and the system provided by the disclosure use the LED transmission debugging data of the device, and can transmit the debugging data without adding a debugging interface.

Claims

A data transmission method includes:

Obtain data to be sent;

Compiling the data to be transmitted into binary information;

The binary information is transmitted by a light emitting diode LED.
The method of claim 1 wherein said transmitting said binary information by said LED comprises transmitting 0 and 1 of said binary information by a blinking state of said LED.
The method of claim 1, wherein the transmitting the binary information by the LED comprises: transmitting the binary information through a set dedicated debug LED; controlling the power LED in a debug state by the multiplex power LED to transmit the binary Information; transmitting the binary information by operating a LED that controls the debug state by multiplexing the operation LED; or transmitting the binary information by controlling the alarm LED in a debug state by multiplexing the alarm LED.
The method of claim 1, wherein the compiling the data to be transmitted into binary information comprises: adopting a frame structure of a device code, a field 1, a field 2, ..., a field n, and a check code combination, The data to be transmitted is compiled into binary information, and the device code includes at least one of a device internet protocol IP address and a device access password, and the field i includes a value i corresponding to the identifier i and the identifier i, 1≤i≤n,i and n is an integer.
The method of any one of claims 1 to 4, wherein the transmitting the binary information by the LED comprises determining the number of LEDs according to a physical transmission protocol, and transmitting the binary information by a corresponding number of LEDs.
A data receiving method includes:

Using the camera to capture the LED status of the data transmitting terminal;

Parsing the LED status to obtain binary information;

The binary information is interpreted as data to be received.
The method of claim 6 wherein said parsing the LED state to obtain binary information comprises determining 0 and 1 of said binary information by a light-off state of said LED.
The method of claim 6, wherein the capturing the LED status of the data transmitting terminal by using the camera comprises: using a brightness recognition method of the color model to identify the off state of the LED, if the brightness is greater than a preset threshold , the LED status is bright, if the brightness is not greater than the preset threshold, the LED status is off.
The method of claim 6, before the camera captures the LED status of the data transmitting terminal, the method further comprising: setting a purifying device around the LED of the data transmitting terminal, and using the camera to capture data transmission through the purifying device The LED status of the terminal.
The method of claim 6, wherein before the capturing the LED status of the data transmitting terminal using the camera, the method further comprises: setting an identification area, placing an LED of the data transmitting terminal according to the identifying area, capturing using a camera The state of the LED within the identified area of the data transmitting terminal.
The method of claim 10, wherein the capturing the LED status of the data transmitting terminal using the camera comprises: using an image processing algorithm of corrosion and expansion, removing noise from the captured image of the camera, and calculating a maximum area of the LED in the image The area, when the percentage of the area of the maximum area and the area of the identification area is greater than a percentage threshold, the LED status is bright, and when the percentage is not greater than the percentage threshold, the LED status is off.
The method according to any one of claims 6 to 11, wherein the capturing the LED status of the data transmitting terminal by using the camera comprises: continuously acquiring an image in the photographing framing mode using the camera to identify the continuous image; or, using the camera The video is recorded in the recording mode, and the video is decomposed into multi-frame images, and the multi-frame images are respectively identified.
A data transmission method includes:

Obtain data to be sent;

Compiling the to-be-sent data into binary information;

Transmitting the binary information through a light emitting diode LED;

Using the camera to capture the LED status of the data transmitting terminal;

Parsing the LED state to obtain the binary information;

The binary information is interpreted to be received data.
A data transmitting device includes:

Obtaining a module, configured to obtain data to be sent;

Compiling a module configured to compile the data to be transmitted into binary information;

The transmitting module is configured to transmit the binary information through the LED.
The apparatus of claim 14, wherein the transmitting module is configured to transmit 0 and 1 of the binary information by a blinking state of the LED.
The apparatus of claim 14, wherein the transmitting module is configured to transmit the binary information through a set dedicated debug LED; to control the power LED in a debug state to transmit the binary information by multiplexing the power LED; The running LED that operates the LED control in the debug state sends the binary information; or the binary LED is sent by controlling the alarm LED in the debug state by multiplexing the alarm LED.
The apparatus according to claim 14, wherein said compiling module is configured to compile said data to be transmitted into a binary using a frame structure of a device code, a field 1, a field 2, ..., a field n, and a check code combination. Information, the device code includes at least one of a device internet protocol IP address and a device access password, and the field i includes a value i corresponding to the identifier i and the identifier i, 1≤i≤n, and i and n are integers.
The apparatus of any of claims 14 to 17, wherein the transmitting module is arranged to determine the number of LEDs according to a physical transmission protocol, the binary information being transmitted by a corresponding number of LEDs.
A data receiving device includes:

The acquisition module is configured to capture the LED status of the data transmitting terminal by using the camera;

Parsing module, set to parse the LED state to obtain binary information;

An interpreting module configured to interpret the binary information as data to be received.
The apparatus of claim 19, wherein the parsing module is configured to determine 0 and 1 of the binary information by a light-off state of the LED.
The device of claim 19, wherein the acquisition module is configured to identify a light-off state of the LED by using a brightness recognition method of a color model, and if the brightness is greater than a preset threshold, the LED state is bright. If the brightness is not greater than the preset threshold, the LED status is off.
The device according to claim 19, wherein the acquisition module is further configured to set a purification device around the LED of the data transmission terminal before using the camera to capture an LED state of the data transmission terminal, and use the camera to pass the purification device Capture the LED status of the data transmitting terminal.
The apparatus according to claim 19, wherein said acquisition module is further configured to set an identification area, and to place an LED of said data transmission terminal according to said identification area, using a camera, before capturing an LED state of the data transmission terminal using the camera The LED status in the identification area of the data transmitting terminal is captured.
The apparatus according to claim 23, wherein said acquisition module is configured to adopt an image processing algorithm of corrosion and expansion, to remove noise from the captured image of said camera, and to calculate a maximum area of the LED in the image, when said maximum area When the percentage of the area to the area of the identification area is greater than a percentage threshold, the LED status is bright, and when the percentage is not greater than the percentage threshold, the LED status is off.
The apparatus according to any one of claims 19 to 27, wherein the acquisition module is configured to continuously acquire an image in a photographing and framing mode using a camera to identify a continuous image; or The video is recorded in the recording mode by the camera, and the video is decomposed into multi-frame images, and the multi-frame images are respectively identified.
A data transmission system comprising: the data transmitting apparatus according to any one of claims 14 to 18; and the data receiving apparatus according to any one of claims 19 to 25;

The data transmitting apparatus is configured to acquire data to be transmitted, compile the data to be transmitted into binary information, and transmit the binary information through a light emitting diode LED;

The data receiving device is configured to capture an LED status of the data transmitting terminal using the camera, parse the LED status to obtain binary information, and interpret the binary information as data to be received.
A non-transitory computer readable storage medium storing computer executable instructions arranged to perform the method of any of claims 1-13.