Test device for power station platform detection system
By designing a test device for a power station platform testing system, the separate testing of the main unit and the sensor was realized, which solved the problems of long testing time and the need for multiple people to cooperate in the existing technology, and improved the testing efficiency and fault finding speed.
Patent Information
- Application Number
- CN202511214002.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-28
- Publication Date
- 2025-11-28
AI Technical Summary
Existing platform inspection system maintenance methods are time-consuming, require multiple people to work together, and are difficult to distinguish between sensor faults and host faults, resulting in low inspection efficiency.
A test device for a power station platform testing system was designed, including a power supply module, a current acquisition module, a signal indication module, and a sensor group. Through automatic power supply and signal conversion, the host and sensors can be tested separately, simplifying the testing process.
One person can complete the separation test of the host and the sensor, which improves the detection efficiency, saves labor costs, and presents the test data intuitively, allowing for quick identification of fault points.
Smart Images
Figure CN121028048A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of platform detection equipment, in particular to a test device for a platform detection system of a power car. BACKGROUND
[0002] The platform detection system can determine whether a train is completely in a station and a platform direction after entering the station by using the ranging principle of ultrasonic waves, and can send a signal to a driver, so that the driver can accurately determine the platform direction. Generally, traditional multiple instruments are used for detection in field maintenance, which is time-consuming and inefficient.
[0003] For a locomotive in a debugging stage, the existing test method is to assemble left and right sensors to the mounting seats on both sides of the locomotive, turn on the power switch of the platform detection system of the locomotive, and then connect the main machine to DC 110V. One person under the car uses a 1m*1m shielding plate to shield different sensors back and forth at different distances (70mm-1000mm), one person records the current signal returned by the sensor after shielding through the instrument, and the other person on the car visually checks the display of the indicator light of the platform detection system in the cab, to determine whether the sensor and the main machine function normally. Once the original sensor or the main machine has a fault, this combined test method cannot determine whether the sensor or the main machine has a fault, and multiple people are required to complete the test. SUMMARY
[0004] The application aims to provide a test device for a platform detection system of a power car, which simplifies the complex detection process and instruments of the previous platform detection system, improves the detection efficiency, realizes efficient detection of the main machine function test and sensor performance parameters of the platform detection system, and quickly finds fault points.
[0005] In order to achieve the above-mentioned purpose, the application adopts the following technical scheme:
[0006] The test device for the platform detection system of the power car comprises a power module, the power module is connected with a current collection module, a first signal indication module and a second signal indication module, the current collection module is connected with a sensor group to be tested and the second signal indication module, the first signal indication module is connected with a main machine to be tested, and the main machine to be tested is connected with a current signal generation module.
[0007] The sensor group to be tested comprises a left sensor group and a right sensor group, the left sensor group and the right sensor group each comprise a plurality of ranging sensors, and the plurality of ranging sensors are arranged at different heights.
[0008] Further, the main machine to be tested comprises an internal power converter, and the internal power converter is connected with the current signal generation module.
[0009] Further, the power module comprises an AC / DC converter connected with the host to be tested, an input end of the AC / DC converter is connected with an AC working power supply, and an output end of the AC / DC converter is connected with the host to be tested.
[0010] A first power manager for supplying power to the sensor group to be tested and the current acquisition module, a plurality of relays for controlling the connection between the output end of the current signal generator and the input end of the test current of the host to be tested are connected with the first power manager, and the plurality of relays are connected with the first signal indication module.
[0011] A second power manager for supplying power to the first signal indication module.
[0012] Further, the power module is connected with a reconnection indicator lamp and a reconnection controller, the reconnection controller is connected with the reconnection indicator lamp in series, and the reconnection controller is connected with a reconnection interface of the host to be tested.
[0013] Further, the output end of the AC / DC converter, the first power manager and the second power manager are all connected with a fuse protection circuit in series, for protecting the corresponding power supply to the subsequent circuit.
[0014] Further, the current signal acquisition module comprises a plurality of ammeters, the ammeters are connected with the distance sensors of the sensor group to be tested in correspondence, the ammeters are connected with the second signal indication module, and the ammeters are connected with a control switch for controlling the first signal indication module.
[0015] Further, the first signal indication module comprises a first indicator lamp for indicating the height of the platform and a second indicator lamp for indicating the dry node signal, and the relays are connected with the control switch in parallel, for controlling the first indicator lamp.
[0016] The second signal indication module comprises a current digital display connected with the ammeters.
[0017] Compared with the prior art, the application has the following beneficial effects:
[0018] In practical application, when testing the host computer, the power module supplies power for the first signal indication module and the host computer, the host computer supplies power for the current signal generator, the current signal generator outputs corresponding standard current signals to different ports of the host computer, the host computer outputs dry contact signals to the first signal indication module after logical processing, the first signal indication module converts the received dry contact signals into visual signals, and the maintenance personnel judges whether the internal logic structure of the host computer is faulty according to the visual signals output by the first signal indication module; when testing the sensor group, the power module supplies power for the current acquisition module, the second signal indication module and the sensor group, the multiple ranging sensors of the sensor group are shielded at different distances, the current acquisition module acquires corresponding current signals, the second signal indication module converts the current signals acquired by the current acquisition module into visual signals for display, and the maintenance personnel judges whether the sensor group meets the relevant technical requirements according to the visual signals; the host computer and the sensor of the detection system can be tested separately by one person, and the test data can be intuitively presented at the same time, the working state of the host computer and the sensor of the detection system can be understood, the labor cost of maintenance and debugging is effectively saved, and the work efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0020] Figure 1 is the electrical connection structure block diagram of the present application;
[0021] Figure 2 is the circuit schematic diagram of the present application;
[0022] Figure 3 is the test structure schematic diagram of the sensor group to be tested of the present application.
[0023] The drawings show that: sensor stand 1; scale strip 2; ultrasonic reflection shielding plate 3; ranging sensor 4. DETAILED DESCRIPTION
[0024] Following make the specific concrete example explain the embodiment of the application, the person skilled in the art can be easily understood from the disclosure of the present application other advantages and efficacy from the present application.The present application can also be implemented or applied by another different embodiment, the details in the specification can be based on different views and applications, in the absence of the spirit of the present application is variously modified or changed.It should be noted that, in the following examples and the features in the examples can be combined with each other without conflict.
[0025] Need to be noted that, the drawings provided in the following examples only in a schematic manner illustrates the basic idea of the present application, and the drawings in the present application is only relevant to the layer and not according to the actual implementation of the number of layers, shape and size drawing, the actual implementation of each layer of the type, quantity and proportion can be a kind of arbitrary change, and its layer layout type may be more complex.
[0026] In the following description, a large number of details are discussed to provide a more thorough explanation of the embodiments of the application, however, it is obvious to the person skilled in the art that the embodiments of the application can be implemented without these specific details.
[0027] Please refer to Figure 1 A test device for a power station platform detection system, comprising a power module, the power module is connected with current acquisition module, first signal indicating module, second signal indicating module, the current acquisition module is connected with the sensor group to be measured and second signal indicating module respectively, the first signal indicating module is connected with the host to be measured, the host to be measured is connected with current signal generating module.
[0028] The sensor group to be measured includes left sensor group and right sensor group, the left sensor group and the right sensor group all include a plurality of ranging sensors, a plurality of the ranging sensors are arranged at different heights respectively.
[0029] In practical application, when testing the host computer, the power module supplies power for the first signal indicating module and the host computer, the host computer supplies power for the current signal generator, the current signal generator outputs corresponding standard current signals to different ports of the host computer, the host computer outputs dry contact signals to the first signal indicating module after logical processing, the first signal indicating module converts the received dry contact signals into visual signals, and the maintenance personnel judges whether the internal logic structure of the host computer is faulty according to the visual signals output by the first signal indicating module; when testing the sensor group, the power module supplies power for the current acquisition module, the second signal indicating module and the sensor group, the multiple ranging sensors of the sensor group are shielded at different distances, and the current acquisition module acquires corresponding current signals, the second signal indicating module converts the current signals acquired by the current acquisition module into visual signals, and the maintenance personnel judges whether the sensor group meets the relevant technical requirements according to the visual signals; the host computer and the sensor of the detection system can be tested separately by one person, and the test data can be intuitively presented, the working state of the host computer and the sensor of the detection system can be understood, the labor cost of maintenance and debugging is effectively saved, and the working efficiency is improved.
[0030] Please refer to Figure 1 , the host computer includes an internal power converter, and the internal power converter is connected to the current signal generating module.
[0031] The host computer provides power for the current signal generating module through the internal power converter.
[0032] Please refer to Figure 2 , the power module includes an AC / DC converter connected to the host computer, an input end of the AC / DC converter is connected to an AC working power supply, and an output end of the AC / DC converter is connected to the host computer.
[0033] A first power manager for supplying power for the sensor group and the current acquisition module, a plurality of relays for controlling the output end of the current signal generator to be connected to the test current input end of the host computer are connected to the first power manager, and the plurality of relays are connected to the first signal indicating module.
[0034] A second power manager for supplying power for the first signal indicating module.
[0035] Please refer to Figure 2 , the power module is connected with a reconnection indicator light and a reconnection controller, the reconnection controller is connected in series with the reconnection indicator light, and the reconnection controller is connected to the reconnection interface of the host computer.
[0036] Please refer to Figure 2The output ends of the AC-DC converter, the first power manager and the second power manager are connected in series with a fuse protection circuit for protecting the power supply to the subsequent circuit.
[0037] Please refer to Figure 2 The current signal acquisition module comprises a plurality of ammeters, the ammeters are connected with the ranging sensor pairs of the sensor groups to be tested, the ammeters are connected with the second signal indication module, and the ammeters are connected with control switches for controlling the first signal indication module.
[0038] Please refer to Figure 2 The first signal indication module comprises a first indicating lamp for indicating the platform height and a second indicating lamp for indicating the dry node signal, and the relay is connected in parallel with the control switch and is used for controlling the first indicating lamp.
[0039] The second signal indication module comprises a current digital display connected with the ammeters.
[0040] Please refer to Figure 2 The AC-DC converter of the power module converts 220V AC power into 110V DC power and outputs the 110V DC power to the 1 bit and 2 bit positions of the X9 interface of the host to be tested and a reconnection controller, the control end of the reconnection controller is connected with the reconnection interface of the host to be tested, a reconnection indicating lamp is connected in series between the reconnection controller and the reconnection interface of the host to be tested, after the host to be tested is powered on, the reconnection logic of the host to be tested is tested, when two buttons respectively representing the locomotive head and the locomotive tail entering the station are pressed at the same time at the host to be tested, the reconnection interface of the host to be tested outputs a control signal, the reconnection controller is closed, and the reconnection indicating lamp is lighted, which means that the reconnection logic of the host to be tested can normally operate, otherwise, the reconnection logic has a fault.
[0041] Please refer to Figure 2When testing the control logic of the host under test (UDT), the UDT's internal power converter outputs 24V DC power to power the current signal generation module. The output terminal of the current signal generation module is controllably connected to the 12-point, 8-point, and 4-point current input terminals X1 or X4 of the UDT via relays KM1, KM2, and KM3, respectively. Relays KM1, KM2, and KM3 are powered by a 24V DC supply from the first power manager and are activated by a rotary switch. Rotating the rotary switch selects any one of relays KM1, KM2, or KM3 to be activated. When the first indicator light of the first signal indicator module connected to the corresponding relay is lit, the output terminal of the current signal generator is connected to the corresponding point of the current input terminal of the host under test, and the output current of the current signal generator is adjusted, for example, to 12mA. After the host under test receives the current signal, it performs logic processing on the signal, that is, compares the received signal with the standard current signal, and outputs a dry contact signal to the second indicator light of the first signal indicator module. When the second indicator light is lit, it indicates that the control logic of the host under test is operating normally; otherwise, it indicates that the control logic of the host under test has malfunctioned. The first signal indicator module is powered by a 24V DC power supply output through the second power manager.
[0042] Please see Figure 2 and Figure 3 During the test of the sensor group under test, a 24V DC power supply is provided by the first power manager to power the sensor group under test, the current acquisition module, and the second signal indication module. The sensor column 1 is placed on the distance scale 2 of the device according to the indicated angle distance. After the sensor group under test is powered on, the matching ultrasonic reflective shielding plate 3 is moved. The height of the ultrasonic reflective shielding plate 3 can be adjusted according to the height of the ranging sensor. The ranging sensors 4 set at different heights in the left or right sensor group are shielded respectively to simulate the distance detection from the platform to the test point at different heights. The ranging sensor converts the detected distance into a current signal and transmits it to the ammeter corresponding to the current acquisition module. The ammeter displays the current value through the current digital display of the second indication module. At the same time, the corresponding control switch relay is energized and turns on, lighting up the corresponding first indicator light. The maintenance personnel calculate the error value between the current value displayed on the current digital display and the standard current value, and judge whether the ranging sensor of the sensor group under test meets the relevant technical requirements based on the error value. The ultrasonic reflective shielding plate 3 consists of three baffles arranged vertically side by side. The three baffles can be detached to change the reflective shielding height.
[0043] The output terminals of the AC / DC converter, the first power manager, and the second power manager are all connected in series with fuse circuits to protect the corresponding downstream circuits.
[0044] This invention simplifies the complicated inspection procedures and instruments used in the previous platform inspection system, improves inspection efficiency, and enables efficient testing of the main unit function of the platform inspection system and the performance parameters of its sensors, thus quickly locating fault points.
[0045] In the above embodiments, although the invention has been described in conjunction with specific embodiments thereof, many substitutions, modifications, and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. The embodiments of the invention are intended to cover all such substitutions, modifications, and variations falling within the broad scope of the appended claims.
[0046] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.
Claims
1. A test apparatus for a power station platform testing system, characterized in that: The system includes a power module, which is connected to a current acquisition module, a first signal indication module, and a second signal indication module. The current acquisition module is connected to the sensor group under test and the second signal indication module, respectively. The first signal indication module is connected to the host under test, and the host under test is connected to a current signal generation module. The sensor group to be tested includes a left sensor group and a right sensor group. Both the left sensor group and the right sensor group include multiple ranging sensors, which are respectively set at different heights.
2. The test apparatus for a power station platform testing system according to claim 1, characterized in that, The host under test includes an internal power converter, which is connected to the current signal generation module.
3. The test apparatus for a power station platform testing system according to claim 2, characterized in that, The power module includes an AC / DC converter connected to the host under test (UDT). The input terminal of the AC / DC converter is connected to an AC power supply, and the output terminal of the AC / DC converter is connected to the UDT. A first power manager is used to power the sensor group under test and the current acquisition module. The first power manager is connected to multiple relays for controlling the connection between the output terminal of the current signal generator and the test current input terminal of the host under test. The multiple relays are connected to the first signal indication module. A second power manager for supplying power to the first signal indication module.
4. The test apparatus for a power station platform testing system according to claim 3, characterized in that, The power module is connected to a reconnection indicator light and a reconnection controller. The reconnection controller is connected in series with the reconnection indicator light and is connected to the reconnection interface of the host under test.
5. The test apparatus for a power station platform testing system according to claim 3, characterized in that, The output terminals of the AC / DC converter, the first power manager, and the second power manager are all connected in series with fuse circuits to protect the corresponding power supply downstream circuits.
6. The test apparatus for a power station platform testing system according to claim 3, characterized in that, The current signal acquisition module includes multiple ammeters, each ammeter being connected to a distance sensor in the sensor group to be measured, and each ammeter being connected to a second signal indication module. The ammeter is also connected to a control switch for controlling the first signal indication module.
7. The test apparatus for a power station platform testing system according to claim 4, characterized in that, The first signal indication module includes a first indicator light for indicating the platform height and a second indicator light for indicating the dry contact signal. The relay is connected in parallel with the control switch to control the first indicator light. The second signal indication module includes a digital current display connected to the ammeter.