Track test disc

Abstract

The utility model relates to a track test panel, which comprises a signal sampling module, a control module, a key module, a relay module and a display module, the signal sampling module, the key module, the relay module and the display module are respectively connected with the control module; selecting a key instruction of the test channel based on the control instruction of the display module and the key module; the relay module switches a test channel according to a key instruction, and the control module calculates a test value of a test item by using a track signal and a local signal collected by the signal sampling module; and the display module displays the track voltage threshold value and the phase angle of the test channel. According to the utility model, instructions of the display module and the button module are received, the sampling module samples track signals and local signals, the control module calculates a voltage amplitude and a phase angle according to the sampled signals, and the track voltage threshold and the phase angle are displayed through the display module. According to the invention, the voltage and phase of the track circuit can be monitored in real time, and data display is carried out on the display module in a digital mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway signal systems, and in particular relates to a track testing disc. Background Art

[0002] Track circuit is an electrical circuit that uses two rails of the railway line as conductors and uses lead wires to connect signal power supply and receiving equipment. It is used to monitor whether the railway line is idle and automatically and continuously connect the operation of the train with the signal equipment to ensure the safety of driving. It is composed of rails, track insulation, rail end connecting wires, lead wires, power transmission equipment and power receiving equipment. The track circuit with an operating frequency of , when the receiving equipment works when the local voltage leads the track voltage phase angle, is called a phase-sensitive track circuit.

[0003] For many years, the test of track circuits in stations has been carried out manually using traditional track circuit test panels, which use pointer instruments for measurement and LED display for measurement. Each section of the test panel is equipped with a conversion switch. When measuring, each section is measured separately by switching the switch. Only the voltage and phase data of one section can be tested at a time. The function is single, the operation is cumbersome, the work intensity is high, and the efficiency is low. In addition, manual measurement inevitably has test errors, and the test data cannot be stored, shared, or transmitted. Therefore, it is difficult to achieve the expected test analysis effect, resulting in low maintenance efficiency and high failure rate of track circuits. Utility Model Content

[0004] In view of this, the purpose of the present invention is to overcome the deficiencies of the prior art and provide a track test disc to solve the problems of cumbersome operation and low efficiency of the existing track test disc.

[0005] To achieve the above purpose, the utility model adopts the following technical solution: a track test disk, comprising: a signal sampling module, a control module, a key module, a relay module and a display module; the signal sampling module, the key module, the relay module and the display module are respectively connected to the control module;

[0006] The display module is used to receive a control instruction for selecting a test item;

[0007] The key module is used to receive a key instruction for selecting a test channel;

[0008] The control module is used to control the relay module to switch the test channel according to the control instruction and the key instruction;

[0009] The signal sampling module is used to collect track signals and local signals of the test channel;

[0010] The control module is used to calculate the test value of the test item according to the track signal and the local signal; the test item includes a track voltage threshold and a phase angle;

[0011] The display module is also used to display the rail voltage threshold and phase angle of the test channel.

[0012] Further, the relay module includes: a plurality of optical coupling isolation units, each optical coupling isolation unit is connected to a relay;

[0013] The control module is connected to the optocoupler isolation units, and each of the optocoupler isolation units is connected to a relay.

[0014] Furthermore, it also includes:

[0015] An alarm module, used to receive an alarm signal from the control module and generate an alarm; the alarm signal is a signal generated by the control module when an abnormality occurs in the track voltage or phase angle;

[0016] The alarm module is connected to the control module.

[0017] Furthermore, it also includes:

[0018] Input isolation module, used for electromagnetic isolation processing of input track signals and local signals;

[0019] The input end of the input isolation module is used to receive the track signal and the local signal, and the output end thereof is connected to the input end of the signal sampling module.

[0020] Furthermore, it also includes:

[0021] A filtering module, used for filtering the sampled track signal and local signal;

[0022] The input end of the filtering module is connected to the output end of the signal sampling module, and the output end thereof is connected to the input end of the control module.

[0023] Furthermore, the track test disc is provided with:

[0024] CAN communication module, used for data transmission with external monitoring system;

[0025] The CAN communication module is connected to the control module.

[0026] Furthermore, the display module includes:

[0027] A touch screen for displaying the measured value, effective value, local voltage, phase angle of the voltage of the track receiving end relay and receiving control instructions for selecting test items;

[0028] The touch screen is arranged on the track test disc.

[0029] Furthermore, it also includes:

[0030] A power supply module is used to provide electrical energy to the track test disc.

[0031] Furthermore, the control module adopts a single chip microcomputer, and the model of the single chip microcomputer is MB96F613RBPMC.

[0032] Furthermore, the input isolation module includes: an isolation transformer.

[0033] The utility model adopts the above technical solution, and the beneficial effects that can be achieved include:

[0034] A track test disk provided in an embodiment of the present application is installed on a relay assembly frame to test the voltage and phase value of the track relay at the power receiving end of the track circuit, and can quickly determine whether the track relay or other equipment in the track circuit is faulty, and the test does not affect the normal use of the track circuit. In the technical solution provided by the present application, a relay is set for each track section, which can be a button switch. After the switch is turned on, the voltage and phase value of the track section can be tested. The track voltage and phase angle of all track sections can be automatically measured, and the display through the display module is very intuitive. The data is imported and exported using a U disk. The track voltage and phase angle can be intuitively monitored through the display module, and the track voltage and phase angle can be pre-set and alarmed according to the user's setting of the track voltage and phase angle out of range. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 This is a structural schematic diagram of a track test disc of the utility model;

[0037] Figure 2 This is another structural schematic diagram of a track test disc of the utility model. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0039] A specific track test disc provided in an embodiment of the present application is introduced below with reference to the accompanying drawings.

[0040] like Figure 1 As shown, the utility model provides a track test disk, comprising: a signal sampling module 1, a control module 2, a key module 3, a relay module 5 and a display module 4; the signal sampling module 1, the key module 3, the relay module 5 and the display module 4 are respectively connected to the control module 2;

[0041] The display module 4 is used to receive control instructions for selecting test items;

[0042] The button module 3 is used to receive a button instruction for selecting a test channel;

[0043] The control module 2 is used to control the relay module 5 to switch the test channel according to the control instruction and the key instruction;

[0044] The signal sampling module 1 is used to collect track signals and local signals of the test channel;

[0045] The control module 2 is used to calculate the test value of the test item according to the track signal and the local signal; the test item includes the track voltage threshold and the phase angle;

[0046] The display module 4 is also used to display the rail voltage threshold and phase angle of the test channel.

[0047] It can be understood that the track test disc provided in the present application has two modes, one is an automatic mode and the other is a manual mode. The user can set the automatic mode and the manual mode through the display module 4.

[0048] As a specific implementation, the user can select test items on the display module 4, and the test items include effective track voltage, local voltage, phase angle, etc. Then select the test channel through the key module 3. It can be understood that the display module 4 and the key module 3 in the present application can be set on the same control panel, or can be separately set on two control panels, and the present application does not limit this. The relay module 5 in the present application includes multiple relays, and the test channel is selected by closing the relay. The relays in the present application can be 26 or 48, and the selection is based on the number of track sections of the station. The minimum is 26 bits for one unit and the maximum is 48 bits for two units.

[0049] The signal sampling module 1 in the present application adopts the voltage zero-crossing technology, and uses the signal generated by the zero-crossing point to generate a track pulse signal consistent with the input track signal, thereby overcoming the phase angle hysteresis phenomenon caused by the use of capacitor charging and discharging technology, ensuring the measurement accuracy of the phase angle between the local voltage and the track voltage, and realizing the judgment of the output condition based on the voltage amplitude and phase angle.

[0050] The present application provides a track test disk, wherein the display module 4 receives a control instruction for selecting a test item, the key module 3 receives a key instruction for selecting a test channel, and the control module 2 controls the relay module 5 to close the corresponding relay of the test channel after receiving the control instruction and the key instruction, thereby connecting the test channel, and the signal sampling module 1 collects the track signal and the local signal of the test channel; wherein the track signal includes a track pulse signal and a track analog voltage signal, and the local signal includes a local pulse signal and a local analog voltage signal, and the control module 2 calculates the track effective voltage according to the track analog voltage signal, calculates the local voltage according to the local analog voltage signal, and calculates the 25Hz signal amplitude of the track input and the phase difference between the track signal and the local signal, i.e., the phase angle, according to the local pulse signal and the track pulse signal. The display module 4 displays the track effective voltage and the local voltage, i.e., the phase angle.

[0051] The track test panel in this application is installed on the relay assembly frame to test the voltage and phase value of the track relay at the power receiving end of the track circuit. It can quickly determine whether the track relay or other equipment in the track circuit is faulty, and the test does not affect the normal use of the track circuit. The track test panel in this application provides two test modes, manual and automatic modes for users to choose from, which improves the test efficiency. It can also set the track voltage and phase angle out-of-range warning and alarm prompts according to user needs.

[0052] In some optional embodiments, the relay module 5 includes: a plurality of optical coupling isolation units, each optical coupling isolation unit is connected to a relay;

[0053] The control module 2 is connected to the optical coupling isolation units, and each of the optical coupling isolation units is connected to a relay.

[0054] Among them, the optical coupling isolation unit is used to isolate the control signal received by the control module 2, mainly to isolate the interference signal in the control signal, and then send the isolated control signal to the relay to realize the on and off of the relay.

[0055] In some optional embodiments, Figure 2 As shown, the track test disc provided by the present application also includes:

[0056] An alarm module 6 is used to receive an alarm signal from the control module 2 and to give an alarm; the alarm signal is a signal generated by the control module 2 when an abnormality occurs in the track voltage or phase angle;

[0057] The alarm module 6 is connected to the control module 2 .

[0058] It is understandable that the standard threshold ranges of the track voltage and phase angle are pre-set in the present application. When the track voltage and / or phase angle exceed the corresponding standard threshold ranges, the control module 2 controls the alarm module 6 to give an alarm. The present application can timely detect abnormal track voltage and other situations through the alarm prompt function, handle them in time, and ensure the stability of track operation.

[0059] In some optional embodiments, the track test disc provided by the present application further includes:

[0060] An input isolation module 7, used for performing electromagnetic isolation processing on the input track signal and the local signal;

[0061] The input end of the input isolation module 7 is used to receive the track signal and the local signal, and the output end thereof is connected to the input end of the signal sampling module 1 .

[0062] The input isolation module 7 in the present application adopts an isolation transformer, and the input track voltage and local voltage are respectively isolated by isolation transformers to achieve complete isolation, thereby cutting off the channel for lightning intrusion and improving the product's own voltage impact resistance.

[0063] In some optional embodiments, the track test disc provided by the present application further includes:

[0064] A filtering module 8, used for filtering the sampled track signal and the local signal;

[0065] The input end of the filtering module 8 is connected to the output end of the signal sampling module 1 , and the output end thereof is connected to the input end of the control module 2 .

[0066] Specifically, the present application may first filter the voltage signal output by the signal sampling module 1 to remove noise signals and ensure the stability of voltage signal transmission.

[0067] In some optional embodiments, the track test disc is provided with:

[0068] CAN communication module (not shown in the figure), used for data transmission with external monitoring system;

[0069] The CAN communication module is connected to the control module 2 .

[0070] In this application, a CAN communication interface is set up, and the staff can export the data in the track test disk used for display and warning through the external monitoring system, which is convenient for the staff to study the data. It should be noted that this application can also use the method of importing and exporting data using a U disk to improve the convenience of data reading and writing.

[0071] In some optional embodiments, the display module 4 includes:

[0072] A touch screen for displaying the measured value, effective value, local voltage, phase angle of the voltage of the track receiving end relay and receiving control instructions for selecting test items;

[0073] The touch screen is arranged on the track test disc.

[0074] Specifically, in this application, the staff can observe the measured value, effective value, local voltage, and phase angle of the track receiving end relay voltage at any time through the touch screen, which is convenient for the staff to supervise the working conditions of the track circuit and improve work efficiency.

[0075] Some optional embodiments further include:

[0076] A power supply module is used to provide electrical energy to the track test disc.

[0077] In some optional embodiments, the control module 2 uses a single chip microcomputer, and the model of the single chip microcomputer is MB96F613RBPMC.

[0078] It can be understood that the control module 2 in the present application adopts a single-chip microcomputer, which automatically collects track signals and local signals for processing and analysis, thereby realizing the monitoring of the track circuit, thereby facilitating on-site maintenance and repair work, reducing the labor intensity of on-site maintenance personnel, improving maintenance efficiency, and reducing the failure rate of the track circuit.

[0079] In summary, the track test disk provided by the utility model is installed on the relay assembly frame to test the voltage and phase value of the track relay at the power receiving end of the track circuit, and can quickly determine whether the fault occurs in the track relay or other equipment in the track circuit, and the normal use of the track circuit is not affected during the test. A relay is set as a button switch in each track section, and the voltage and phase value of the track section can be tested after the relay is turned on. Selecting the automatic mode can automatically measure the track voltage and phase angle of all track sections, which is very intuitive to display through the LCD touch screen. The data is imported and exported using a U disk, and the track voltage and phase angle can be set according to the user. Pre-alarm prompts and alarms for out-of-range warnings. The intelligent track test disk is divided into two types according to the number of objects to be tested. One type can test 48 track relays, and the other can test 26 track relays.

[0080] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A track test disc, characterized in that: include: A signal sampling module, a control module, a key module, a relay module and a display module; the signal sampling module, the key module, the relay module and the display module are connected to the control module respectively; The display module is used to receive a control instruction for selecting a test item; The key module is used to receive a key instruction for selecting a test channel; The control module is used to control the relay module to switch the test channel according to the control instruction and the key instruction; The signal sampling module is used to collect track signals and local signals of the test channel; The control module is also used to calculate the test value of the test item according to the track signal and the local signal; the test item includes a track voltage threshold and a phase angle; The display module is also used to display the rail voltage threshold and phase angle of the test channel.

2. The track test disc according to claim 1, characterized in that: The relay module comprises: a plurality of optical coupling isolation units, each optical coupling isolation unit is connected to a relay; The control module is connected to the optocoupler isolation units, and each of the optocoupler isolation units is connected to a relay.

3. The track test disc according to claim 1, characterized in that: Also includes: An alarm module, used to receive an alarm signal from the control module and generate an alarm; the alarm signal is a signal generated by the control module when an abnormality occurs in the track voltage or phase angle; The alarm module is connected to the control module.

4. The track test disc according to claim 1, characterized in that: Also includes: Input isolation module, used for electromagnetic isolation processing of input track signals and local signals; The input end of the input isolation module is used to receive the track signal and the local signal, and the output end thereof is connected to the input end of the signal sampling module.

5. The track test disc according to claim 1, characterized in that: Also includes: A filtering module, used for filtering the sampled track signal and local signal; The input end of the filtering module is connected to the output end of the signal sampling module, and the output end thereof is connected to the input end of the control module.

6. The track test disc according to claim 1, characterized in that: The track test disc is provided with: CAN communication module, used for data transmission with external monitoring system; The CAN communication module is connected to the control module.

7. The track test disc according to claim 1, characterized in that: The display module comprises: A touch screen for displaying the measured value, effective value, local voltage, phase angle of the voltage of the track receiving end relay and receiving control instructions for selecting test items; The touch screen is arranged on the track test disc.

8. The track test disc according to claim 1, characterized in that: Also includes: A power supply module is used to provide electrical energy to the track test disc.

9. The track test disc according to claim 1, characterized in that: The control module adopts a single chip microcomputer, and the model of the single chip microcomputer is MB96F613RBPMC.

10. The track test disc according to claim 4, characterized in that: The input isolation module includes: an isolation transformer.

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