CN111610396A - Locomotive signal recording board and locomotive signal detection method - Google Patents

Abstract

The invention provides a locomotive signal recording board and a locomotive signal detection method, which solve the problems of complicated, inefficient and long detection time of the existing locomotive signal equipment working performance detection method, and belong to the field of locomotive signal detection. The locomotive signal recording board of the present invention comprises a recording board body, a detection module and a processing module, the recording board body is connected with the main board of the locomotive signal equipment; the detection module is connected with the recording board body, and is used for obtaining the operation of the locomotive signal equipment through the recording board body information; the processing module is connected with the detection module, and is used for judging the working state of the locomotive signal equipment according to the information obtained by the detection module. The method of the invention is to use the aerial plug of the recording board body to collect the working information of the locomotive signal equipment to judge whether it is normally decoded and lighted, whether the working sensitivity meets the requirements, whether the strain is normal, whether the transmission is normal, and whether the output is normal.

Description

Locomotive signal recording board and locomotive signal detection method

technical field

The invention relates to a locomotive signal recording board capable of detecting locomotive signal equipment and a locomotive signal detection method, belonging to the field of locomotive signal detection.

Background technique

The locomotive signal equipment is the key on-board technical equipment of the train operation control system, and its safety and reliability are extremely critical. The existing detection methods often use manual removal of the locomotive signal equipment from the vehicle and take it to the test bench in the workshop for detection. The above detection methods have the following defects:

1) When testing the locomotive signal equipment, it is necessary to take the whole machine out of the train and take it to the on-board equipment workshop of the electric service section to use the test bench for testing, which is time-consuming and labor-intensive.

2) Manual participation is required in the test, which is a waste of manpower.

SUMMARY OF THE INVENTION

Aiming at the problems of the existing locomotive signal equipment working performance detection method being cumbersome, inefficient and long detection time, the present invention provides a recording board body capable of automatically recording the relevant information of each circuit board in the equipment, and provides a A locomotive signal recording board for detecting the working state of a locomotive signal device and a locomotive signal detection method.

A locomotive signal recording board of the present invention comprises a recording board body, which is connected with the main board of the locomotive signal equipment, and the recording board further comprises a detection module and a processing module;

The detection module is connected with the recording board body, and is used for obtaining the working information of the locomotive signal equipment through the recording board body;

The processing module is connected with the detection module, and is used for judging the working state of the locomotive signal equipment according to the information obtained by the detection module.

Preferably, the detection module includes a code sending module;

The code sending module is used to generate the FSK signal, and the FSK signal is sent to the main board of the locomotive signal equipment through the aerial plug of the recording board body; the processing module collects the corresponding feedback signal of the locomotive signal equipment through the aerial plug of the recording board body, The feedback signal refers to a signal output by the mainboard after receiving the FSK signal, and the processing module determines whether the mainboard can decode and light up normally according to the feedback signal.

Preferably, the code sending module is also used to generate FSK signals with different amplitudes under the control of the processing module, and send them to the main board of the locomotive signal equipment through the recording board body aerial plug; the processing module is through the recording board body aerial plug The corresponding feedback signal of the locomotive signal equipment is collected. The feedback signal refers to the signal output by the main board after receiving the FSK signals of different amplitudes. The processing module determines whether the operating sensitivity of the main board meets the requirements according to the feedback signal.

Preferably, the detection module includes a strain time acquisition module, which is used to collect the decoded light-on time of the motherboard through the recording board body aerial plug under the control of the processing module; the processing module determines the locomotive signal equipment according to the decoded light-on time and determine whether the strain of the locomotive signal equipment is normal according to the strain time.

Preferably, the detection module includes a serial port information acquisition module, which is used to collect CAN information sent and received by the motherboard through the aerial plug of the recording board body under the control of the processing module, and the processing module judges whether the transmission of the locomotive signal equipment is normal according to the CAN information. .

Preferably, the detection module includes a feedback information collection module, which is used to collect the switch quantity of the mainboard through the aerial plug of the recording board body under the control of the processing module, and the processing module judges whether the output of the locomotive signal equipment is normal according to the switch quantity.

Preferably, the locomotive signal recording board further includes a display module, the display module is connected with the processing module, and after the processing module judges the working state of the locomotive signal equipment, the display module is controlled to display the judgment result.

Preferably, the locomotive signal recording board further includes a storage module, the storage module is connected with the processing module, and the processing module sends the data detected by the detection module and the judgment result to the storage module for storage.

The present invention also provides a locomotive signal detection method, the method is implemented based on a recording board body, and the recording board body is connected to the main board of the locomotive signal equipment for recording the working information of the locomotive signal equipment, and the method includes:

S1. Send a test signal to the locomotive signal equipment through the recording board body, and collect the corresponding feedback signal of the main board of the locomotive signal equipment through the recording board body aerial plug, and the feedback signal refers to the signal output by the main board after receiving the test signal ; and/or collect the switching value of the mainboard through the aerial plug of the recording board body, and/or collect the CAN information sent and received by the mainboard through the aerial insertion of the recording board body;

S2. Determine whether the main board of the locomotive signal equipment can decode the lights normally and whether the working sensitivity meets the requirements according to the collected feedback signal of the main board, and/or judge whether the output of the locomotive signal equipment is normal according to the collected switching value of the main board. And/or according to the collected CAN information of the motherboard, it is judged whether the transmission of the locomotive signal equipment is normal.

Preferably, in the S1, the test signal includes a FSK signal of a fixed amplitude and/or an FSK signal of different amplitudes,

When the fixed amplitude FSK signal is sent to the main board of the locomotive signal equipment through the recording board body aerial plug, the corresponding feedback signal of the locomotive signal equipment is obtained from the recording board body, and according to the feedback signal, it is determined whether the main board can decode normally. light up;

When the FSK signals of different amplitudes are sent to the main board of the locomotive signal equipment through the aerial plug of the recording board body, the corresponding feedback signal of the locomotive signal equipment is collected through the aerial plug of the recording board body, and the working sensitivity of the main board is determined according to the feedback signal. meet the requirements.

The beneficial effect of the present invention is that the present invention adds a detection module and a processing module on the basis of the record board body that can automatically record the relevant information of each circuit board in the device, and collects the information to be detected through the record board body aerial insertion, and detects the information according to the need to detect The information of the locomotive signal equipment is judged, and the working status of the locomotive signal equipment is detected on the vehicle. The present invention is arranged on the locomotive, the user completes the test of the locomotive signal equipment on the locomotive, does not need to carry out the detection off the locomotive, and is convenient and fast to use. Good operability. The present invention can automatically perform code sending inspection test, sensitivity and strain time tests without manual participation. After the user test is completed, the present invention can automatically save the detection record, so as to facilitate the viewing of the historical record.

Description of drawings

Fig. 1 is the connection schematic diagram of the recording board body and two mainboards;

Fig. 2 is the principle schematic diagram of the recording board body;

FIG. 3 is a schematic diagram of the principle of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but it is not intended to limit the present invention.

In order to solve the problems of the existing locomotive signal equipment working performance detection method being cumbersome, inefficient, and long in detection time, this embodiment provides a locomotive signal recording board. The device detects by inserting a test interface on the recording board body. The module and processing module complete the on-board detection of the performance of the locomotive signal equipment.

As shown in Figure 1 and Figure 2, the recording board body includes an embedded controller, a memory card and a CF card. The CF card is used to store the information of the motherboard. The embedded controller reads the information stored in the CF card through the parallel bus, and embeds the The type controller also accesses the motherboard A and the motherboard B through the CAN bus, reads the information in the two motherboards, and stores them in the CF card. It can be seen that the information of the motherboard is finally collected and stored in the CF of the recording board body. In the card, the automatically recorded information of each motherboard is available for the staff to call at any time. The information and results of the detection module detection of the motherboard are stored in the memory card. A locomotive signal recording board of this embodiment, as shown in FIG. 3 , includes a recording board body, a detection module and a processing module;

As shown in FIG. 2 , the recording board body is connected to the two main boards of the locomotive signal equipment for recording the working information of the locomotive signal equipment. The detection module of this embodiment is connected to the detection interface of the recording board body through a connector, from The working information of the locomotive signal equipment is obtained on the recording board body, the detection module is connected with the processing module, and the processing module judges the working state of the locomotive signal equipment according to the information obtained by the detection module. Whether the lamp and working sensitivity meet the requirements, whether the strain is normal, whether the transmission is normal, and whether the output is normal, the detection module and the processing module complete one or more of the following detections with the help of the recording board body:

Test 1: The processing module controls the detection module to send a test signal to the locomotive signal equipment. After the locomotive signal equipment responds, it gives feedback, and collects the corresponding feedback signal of the locomotive signal equipment through the aerial insertion of the recording board body, and the processing module judges according to the collected feedback signal. Whether the signal equipment of the locomotive can decode the lights and the time and sensitivity of decoding the lights;

Detection 2: The detection module collects the switching quantities of the two main boards of the locomotive signal equipment through the aerial plug of the recording board body, and the processing module judges whether the output of the locomotive signal equipment is normal according to the collected switching quantities;

Detection 3: The detection module collects the CAN information sent and received by the two main boards of the locomotive signal equipment through the aerial plug of the recording board body, and the processing module judges whether the transmission of the locomotive signal equipment is normal according to the acquired CAN information of the locomotive signal equipment;

When the first detection is implemented, the detection module of this embodiment includes a code sending module, and the code sending module generates an FSK signal, and sends the FSK signal to the two main boards of the locomotive signal equipment through the aerial plug of the recording board body, and the FSK signal is transmitted through the recording board body. Insert and collect the feedback signal output by the locomotive signal device after receiving the FSK signal, and the processing module determines whether the main board A and the main board B can decode and light up normally according to the feedback signal.

The code sending module of this embodiment is realized by the DDS chip, and generates the track FSK signal under the control of the processing module, and sends the FSK signal to the main board A and the main machine respectively through the coil signal pin on the aerial plug of the recording board body. Board B, and then test whether the motherboard can decode and turn on the light normally.

When the first detection is realized, the detection module of this embodiment is also used to generate FSK signals of different amplitudes under the control of the processing module, and send them to the two main boards of the locomotive signal equipment through the aerial plug of the recording board body, and the recording board The main body aerial plug collects the feedback signal output by the locomotive signal device after receiving the FSK signal with different amplitudes, and the processing module determines whether the working sensitivity of the two motherboards meets the requirements according to the feedback signal. In this embodiment, the FSK signal generated by the code sending module is adjusted by a digital potentiometer and an operational amplifier to generate FSK signals of different amplitudes and send them to the mainboard A and mainboard B to test whether the working sensitivity meets the requirements.

When the first detection is implemented, the detection module of this embodiment further includes a strain time acquisition module, and the strain time acquisition module collects the time from code-free to code-free and code-free to code-ready between two motherboards through the recording board body aerial plug, and the processing module according to the The time determines the strain time of the locomotive signalling equipment. In this embodiment, the timer inside the processing module is used for timing, and the time from code to no code and no code to code is collected from the mainboard to determine the time when the mainboard decodes and lights up after receiving the signal.

When the second detection is implemented, the detection module of this embodiment further includes a serial port information collection module. The serial port information collection module collects the CAN information sent and received by the two motherboards through the aerial plug of the recording board body, and the processing module judges the locomotive signal equipment according to the CAN information. transmission is normal. This embodiment uses the CAN controller inside the processing module and the CAN transceiver on the locomotive signal recording board to receive the CAN information sent and received by the mainboard A and the mainboard B to determine whether the transmission status of the locomotive signal equipment is normal. The CAN information in this embodiment includes the format, decoding, and jumper of the transmission information.

When the third detection is implemented, the detection module of this embodiment further includes a feedback information collection module, the feedback information collection module collects the switching quantities of the two motherboards through the aerial plug of the recording board body, and the processing module judges the locomotive signal equipment according to the switching quantities. Is the output normal. In this embodiment, an optocoupler is used to collect switching quantities such as light color and speed level output by the motherboard A and the motherboard B.

In a preferred embodiment, the locomotive signal recording board of this embodiment further includes a display module, which is connected to the processing module. After the processing module judges the working state of the locomotive signal equipment, the display module is controlled to display the judgment result.

The processing module processes and outputs the received digital signals, and the display module is used to display the test results.

In a preferred embodiment, the locomotive signal recording board of this embodiment further includes a storage module, the storage module is connected with the processing module, and the processing module sends the data detected by the detection module and the judgment result to storage for storage. In this implementation, the data can be dumped by inserting a U disk through the USB interface of the recording board body, and the data can be imported into the upper computer software for detailed analysis.

This embodiment also provides a locomotive signal detection method. The method of this embodiment is implemented based on the recording board body. The recording board body is connected to two main boards of the locomotive signal equipment, and is used to record the working information of the locomotive signal equipment. The method of implementation includes:

S1. Send a test signal to the locomotive signal equipment through the aerial plug of the recording board body, and collect the corresponding feedback signal of the main board of the locomotive signal equipment through the aerial plug of the recording board body, and the feedback signal refers to the main board after receiving the test signal. The output signal; and/or collect the switch value of the mainboard through the aerial plug of the recording board body, and/or collect the CAN information sent and received by the mainboard through the aerial plug of the recording board body;

S2. Determine whether the main board of the locomotive signal equipment can decode the lights normally and whether the working sensitivity meets the requirements according to the collected feedback signal of the main board, and/or judge whether the output of the locomotive signal equipment is normal according to the collected switching value of the main board. And/or according to the collected CAN information of the motherboard, it is judged whether the transmission of the locomotive signal equipment is normal.

In S1 of the preferred embodiment, the test signal includes a fixed-amplitude FSK signal and/or a different-amplitude FSK signal, and the fixed-amplitude FSK signal is sent to the two main boards of the locomotive signal device through the recording board body aerial plug, Collect the corresponding feedback signal of the locomotive signal equipment through the aerial insertion of the recording board body, and determine whether the two motherboards can decode the lights normally according to the feedback signal;

Send FSK signals of different amplitudes to the two main boards of the locomotive signal equipment through the aerial plug of the recording board body, and collect the corresponding feedback signal of the locomotive signal equipment through the aerial plug of the recording board body, and the feedback signal determines the working sensitivity of the two main boards. does it reach the requirement.

The method of the present embodiment further includes collecting the decoding and lighting time of the two motherboards from code to no code and from code to code to calculate the strain time by recording the board body and the board aerial plug.

The method of this embodiment further includes collecting CAN information sent and received by the two mainboards through the recording board body and the board aerial plug, and judging whether the transmission of the locomotive signal equipment is normal.

The method of this embodiment further includes collecting the switching quantities of the two mainboards through the aerial insertion of the recording board body, and judging whether the output of the locomotive signal device is normal.

The method of this embodiment collects the working information of the locomotive signal equipment by means of the aerial plug of the recording board body. Is it normal and whether the output is normal.

Although the invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely illustrative of the principles and applications of the invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and other arrangements can be devised without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that the features described in the various dependent claims and herein may be combined in different ways than are described in the original claims. It will also be appreciated that features described in connection with a single embodiment may be used in other described embodiments.

Claims (10)

1. a locomotive signal recording board, comprising a recording board body, is connected with the main board of the locomotive signal equipment, it is characterized in that, described recording board also comprises detection module and processing module; The detection module is connected with the recording board body, and is used for obtaining the working information of the locomotive signal equipment through the recording board body; The processing module is connected with the detection module, and is used for judging the working state of the locomotive signal equipment according to the information obtained by the detection module. 2. The locomotive signal recording board according to claim 1, wherein the detection module comprises a code sending module; The code sending module is used to generate the FSK signal, and the FSK signal is sent to the main board of the locomotive signal equipment through the aerial plug of the recording board body; the processing module collects the corresponding feedback signal of the locomotive signal equipment through the aerial plug of the recording board body, The feedback signal refers to a signal output by the mainboard after receiving the FSK signal, and the processing module determines whether the mainboard can decode and light up normally according to the feedback signal. 3. locomotive signal recording board according to claim 2 is characterized in that, described code sending module is also used to generate FSK signals of different amplitudes under the control of the processing module, and is sent to the recording board body by aerial plugging. The main board of the locomotive signal equipment; the processing module collects the corresponding feedback signal of the locomotive signal equipment through the aerial insertion of the recording board body, and the feedback signal refers to the signal output by the main board after receiving the FSK signals of different amplitudes. The feedback signal determines whether the operating sensitivity of the motherboard meets the requirements. 4. The locomotive signal recording board according to claim 1, wherein the detection module comprises a strain time acquisition module, which is used to collect the decoding and lighting time of the mainboard through the recording board body aerial plug under the control of the processing module. ; The processing module determines the strain time of the locomotive signal equipment according to the decoded light-on time, and determines whether the strain of the locomotive signal equipment is normal according to the strain time. 5. locomotive signal recording board according to claim 1, is characterized in that, described detection module comprises serial port information acquisition module, is used for, under the control of processing module, collects the CAN information sent and received by mainboard through recording board body aerial plug, The processing module judges whether the transmission of the locomotive signal equipment is normal according to the CAN information. 6 . The locomotive signal recording board according to claim 1 , wherein the detection module comprises a feedback information collection module, which is used to collect the switching value of the motherboard through the aerial plug of the recording board body under the control of the processing module, and process the The module judges whether the output of the locomotive signal equipment is normal according to the switch value. 7. The locomotive signal recording board according to claim 1, characterized in that, the locomotive signal recording board further comprises a display module, the display module is connected with the processing module, and after the processing module judges the working state of the locomotive signal equipment, it controls the The display module displays the judgment result. 8. The locomotive signal recording board according to claim 1, wherein the locomotive signal recording board further comprises a storage module, the storage module is connected with the processing module, and the processing module sends the data detected by the detection module and the judgment result to storage module for storage. 9. A locomotive signal detection method, the method is realized based on a recording board body, the recording board body is connected with the main board of the locomotive signal equipment, for recording the working information of the locomotive signal equipment, it is characterized in that, the method comprises : S1. Send a test signal to the locomotive signal equipment through the recording board body, and collect the corresponding feedback signal of the main board of the locomotive signal equipment through the recording board body aerial plug, and the feedback signal refers to the signal output by the main board after receiving the test signal ; and/or collect the switching value of the mainboard through the aerial plug of the recording board body, and/or collect the CAN information sent and received by the mainboard through the aerial insertion of the recording board body; S2. Determine whether the main board of the locomotive signal equipment can decode the lights normally and whether the working sensitivity meets the requirements according to the collected feedback signal of the main board, and/or judge whether the output of the locomotive signal equipment is normal according to the collected switching value of the main board. And/or according to the collected CAN information of the motherboard, it is judged whether the transmission of the locomotive signal equipment is normal. 10. The locomotive signal detection method according to claim 9, wherein in the S1, the test signal comprises a FSK signal of a fixed amplitude and/or an FSK signal of different amplitudes, When the fixed amplitude FSK signal is sent to the main board of the locomotive signal equipment through the recording board body aerial plug, the corresponding feedback signal of the locomotive signal equipment is obtained from the recording board body, and according to the feedback signal, it is determined whether the main board can decode normally. light up; When the FSK signals of different amplitudes are sent to the main board of the locomotive signal equipment through the aerial plug of the recording board body, the corresponding feedback signal of the locomotive signal equipment is collected through the aerial plug of the recording board body, and the working sensitivity of the main board is determined according to the feedback signal. meet the requirements.

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