CN218524747U - Comprehensive electrical test bed for light rail vehicle - Google Patents
Comprehensive electrical test bed for light rail vehicle Download PDFInfo
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- CN218524747U CN218524747U CN202221986601.0U CN202221986601U CN218524747U CN 218524747 U CN218524747 U CN 218524747U CN 202221986601 U CN202221986601 U CN 202221986601U CN 218524747 U CN218524747 U CN 218524747U
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Abstract
The utility model relates to a light rail vehicle is with synthesizing electrical test bench, touch display terminal can respond excitation signal instruction input, output program, through touch display terminal excitation signal, transmit data acquisition output module through communication protocol converter analysis conversion, excitation signal is handled through electrical control circuit again, finally give excitation signal to test vehicle equipment under test, test vehicle equipment under test feedback signal, this feedback signal is gathered to data acquisition output module, export feedback signal at touch display terminal's display interface, reach the purpose of test. The device greatly simplifies the workload of detection, is convenient to operate, adopts two data modules of analog quantity and digital quantity, is provided with a circuit with a corresponding test function, and can complete the test of various electrical equipment of the vehicle.
Description
Technical Field
The utility model relates to a track transportation vehicles electrical equipment detects technical field, concretely relates to comprehensive electrical test bench is used to light rail vehicle.
Background
The rail transit vehicle is provided with a plurality of key electrical subsystem devices, wherein the key electrical subsystem devices comprise a traction converter, an auxiliary inverter, a charger, a driver controller, a braking system, a PIS system and the like, and the condition that whether the vehicle can run or run safely is necessarily related to the performance of the electrical devices, so that the electrical devices need to be subjected to periodic performance test or fault detection. Each type of electrical equipment includes various components, such as sensors, contactors, various switch modules, circuit boards or power modules, etc. in the traction inverter. In the traditional detection method, all components are detected by adopting related single test tools, the test process is complicated, the task amount is huge, and errors are easy to make. Aiming at the current situation that the degree of intelligence of manual detection is low, in recent years, industry provides a plurality of intelligent detection devices, but at present, detection is carried out on a certain electrical device, the detection is roughly divided into two types, the first type is self-detection in the running state of a vehicle, namely, a data processing unit of the detection device is configured with detection parameters and a data acquisition module is loaded, and relevant signals during running of the vehicle are acquired to be compared with the parameters of the data processing unit to react to faults, and the testing can be carried out only when the vehicle is started; the second is data acquisition and analysis of the electrical device in the form of a signal generator and digital to analog converter, which is relatively simple given the signal and the signal generator volume is usually large. Both approaches have drawbacks and both can only be tested on a single electrical device.
At present, the vehicle operation and maintenance workload of a rail transit vehicle operation unit is extremely large, the detection and maintenance workload of vehicle equipment accounts for a large amount, and the high-efficiency and convenient test bench can effectively reduce the total workload of the operation unit. At present, a comprehensive electrical test device is urgently needed to realize ground test of tested equipment, and the purposes of high automation degree, time saving, convenient operation and labor cost reduction are achieved.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides a light rail vehicle is with synthesizing electrical test bench, with control end, electric control circuit and surveyed the electrical equipment interface integration internal at a cabinet, analog or digital signal through electric control circuit's processing or through the conversion of communication protocol converter, surveyed electrical equipment interface to being surveyed electrical equipment signal given and gather, reach the test purpose.
In order to realize the purpose, the following technical scheme is adopted: the comprehensive electrical test bed for the light rail vehicle comprises a display platform, an operation platform and a cabinet body, and is characterized by further comprising a touch display terminal, a data input/output module, a communication protocol converter, a power supply module, a plurality of electrical control circuits and test accompanying equipment;
a signal input interface and a signal output interface are embedded on the control platform;
the touch display terminal is a control terminal capable of running more than a Windows 7 (32 bit) system version, is provided with an RS585 communication interface and a storage module, is configured with program files for input/output, identification and judgment of excitation signal instructions and parameters, and is embedded in a display platform;
the data input/output module and the communication protocol converter are integrated on the printed circuit board, the printed circuit board is installed inside the cabinet body, the communication protocol converter is respectively connected with the data input/output module and the touch display terminal through an RS585 communication cable and a CAN bus, a data stream input end and an output end of the communication protocol converter are integrated in the signal input interface and the signal output interface through an RS585 communication cable, the data input/output module is used for giving a signal to tested equipment of a test vehicle and feeding back the signal of the tested equipment of the test vehicle, the communication protocol converter is used for converting communication data models between the input/output module and the touch display terminal and converting data streams between the data input/output module and the tested equipment of the test vehicle;
the electric control circuit is a test function circuit consisting of a plurality of electric elements, the input end and the output end of the electric control circuit are respectively connected with the data input/output module, the input end and the output end of the electric control circuit are further respectively integrated in the signal input interface and the signal output interface, and the electric elements are arranged in the cabinet body;
the electric control circuit is a test function circuit consisting of a plurality of electric elements, each electric control circuit corresponds to the electric control circuit in the tested equipment of the tested vehicle and is used for adapting given and fed back signals,
the input end and the output end of the electric control circuit are respectively connected with the data input/output module, the input end and the output end of the electric control circuit are further respectively integrated in the signal input interface and the signal output interface, and the electric element is installed inside the cabinet body;
the power supply module is arranged in the cabinet body and used for supplying power to the touch display terminal, the printed circuit board, the electric control circuit, the test accompanying equipment and the tested equipment of the test vehicle;
the accompanying and testing equipment is arranged inside the cabinet body.
Furthermore, a signal input interface, a signal output interface and a tested device socket board are embedded on the control platform, an input end and an output end of an electrical control circuit connected with an electrical control circuit of tested equipment of the test vehicle are respectively integrated in the signal input interface and the signal output interface, the tested device socket board is connected with the power module in a wiring mode, the signal input interface and the signal output interface are used for being in butt joint with the output end and the output end of the electrical control circuit of the tested equipment of the test vehicle, and the tested device socket board is used for supplying power to the tested equipment of the test vehicle.
Furthermore, a driver controller is embedded on the control platform and connected with the power module through a power line, the input end and the output end of a signal line of the driver controller are respectively integrated in the signal input interface and the signal output interface, and the driver controller is used for simulating a real level signal.
Furthermore, at least one group of signal input interfaces and signal output interfaces are integrated on the control platform.
Further, the data input/output module comprises an analog quantity input/output module and a digital quantity input/output module, and the analog quantity input/output module and the digital quantity input/output module are connected with the corresponding electric control circuits in a wiring mode.
Further, the electric elements include a voltage sensor, a current sensor, a contactor, and an intermediate relay.
Further, the power module comprises a power supply, a sensor power supply, a relay control power supply and a contactor feedback signal power supply.
Furthermore, the display platform is embedded with an equipment power switch, and the power switch is connected with the power module.
Furthermore, the display platform is also embedded with a working indicator light, and the working indicator light is connected with the corresponding connection analog quantity input/output module and the digital quantity input/output module and used for judging the working state.
Furthermore, the touch display terminal also comprises a USB interface for exporting data of the touch display terminal configuration program file operation.
The utility model discloses beneficial effect: this neotype touch display terminal can respond to excitation signal instruction input, output program, give appointed data instruction through touch display terminal and regard as excitation signal, transmit data acquisition/output module through communication protocol converter analysis conversion, excitation signal is handled through electric control circuit again, finally give excitation signal to test vehicle equipment under test, test vehicle equipment under test feedback signal, this feedback signal is gathered to data acquisition/output module, with feedback signal at touch display terminal's display interface output, reach the purpose of test. This device is integrated at the cabinet body with functional module, simultaneously with the direct integrated operation mesa of signal input interface and signal output interface, can directly pair the connector on experimental vehicle equipment under test's the electrical control circuit, the ground test of reality equipment under test simplifies the work load that detects greatly, convenient operation to adopt both data module of analog quantity and digital quantity, be furnished with the circuit of corresponding experimental function simultaneously, can accomplish the test of the multiple electrical equipment of vehicle.
Drawings
FIG. 1 is a block diagram schematically illustrating the structure of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic diagram of voltage signal input/output principle;
FIG. 4 is a schematic diagram of a current signal input/output principle;
fig. 5 is a schematic diagram of the high-low point input/output principle.
As shown in the figure: 1. a display platform; 2. a manipulation platform; 3. a cabinet body; 4. a touch display terminal; 5. a data input/output module; 6. a communication protocol converter; 7. a power supply module; 8. a device power switch; 9. an electrical control circuit; 10. a test accompanying device; 11. a signal input interface; 12. a signal output interface; 13. a device under test socket board; 14. a driver controller; 15. a USB interface; 16. a working indicator lamp a; 17. a working indicator light b;501; analog input/output module, 502; a digital quantity input/output module 701; a power supply 702; a sensor power supply 703; a relay control power supply 704; a contactor feeds back a signal power supply 901; a voltage sensor, 902; a current sensor 903; a contactor, 904; an intermediate relay.
Detailed Description
Examples
Fig. 1-5 are schematic diagrams of this embodiment, and the integrated electrical test bed for a light rail vehicle shown in fig. 1 and 2 includes a display platform 1, an operation platform 2, a cabinet 3, a touch display terminal 4, a data input/output module 5, a communication protocol converter 6, a power module 7, a plurality of electrical control circuits 9, and an auxiliary test device 10, where the data input/output module 5 includes an analog input/output module 501 and a digital input/output module 502, the power module 7 includes a power supply 701, a sensor power 702, a relay control power 703 and a contactor feedback signal power 704, and the operation platform 2 is embedded with a signal input interface 11, a signal output interface 12, a tested device socket board 13 and a driver controller 14; the display platform 1 is embedded with a touch display terminal 4, an equipment power switch 8 and a work indicator lamp.
The touch display terminal 4 is a control terminal capable of running a version of Windows 7 (32 bit) system, and is provided with an RS585 communication interface, a USB interface 15 and a storage module.
The touch display terminal 4 is configured with program files for inputting/outputting, identifying and judging excitation signal commands and configuring parameters, wherein the configuration files are realized by using labview software development and at least comprise definition display interfaces, definition data input and output commands and definition function signals of tested equipment of a test vehicle, and also comprise a definition establishing database, and the functions of the tested equipment of the test vehicle are as follows:
| serial number | Function(s) |
| 1 | Graphic and effective value display of voltage and current analog quantity |
| 2 | Contactor switch control and |
| 3 | Control of digital |
| 4 | Display of digital quantity input channel |
| 5 | Control of converter controlled electric power supply and display of output voltage |
| 6 | Calculation and display of test data |
The analog quantity input/output module 501, the digital quantity input/output module 502 and the communication protocol converter 6 are integrated on a printed circuit board, the printed circuit board is installed inside the cabinet body 3, and the analog quantity input/output module 501 and the digital quantity input/output module 502 are connected with the communication protocol converter 6 through an RS585 communication cable and are used for collecting analog signals and digital signals of tested equipment of a test vehicle and feeding back the signals to the touch display terminal 4; the communication protocol converter 6 is used for converting the type of collected and sent data, the communication protocol converter 6 is connected with the touch display terminal 4 through a CAN bus, and the data stream input end and the data stream output end of the communication protocol converter 6 are integrated in the signal input interface 11 and the signal output interface 12 through RS585 communication cables.
The electric control circuit 9 is a test function circuit composed of a plurality of electric elements for processing the analog quantity signal and the digital quantity signal so as to give and feed back signals, the electric elements including a voltage sensor 901, a current sensor 902, a contactor 903 and an intermediate relay 904, and the electric elements are installed inside the cabinet 3. The input and output terminals of the electric control circuit 9 are respectively connected with the corresponding analog input/output module 501 or digital input/output module 502, and the input and output terminals of the electric control circuit 9 are further respectively integrated in the signal input interface 11 and the signal output interface 12. The operation platform 2 of this embodiment is provided with three sets of corresponding signal input interfaces 11 and signal output interfaces 12 for connecting to multiple sets of connectors of output terminals and input terminals of the electrical control circuit 9 in the device under test of the test vehicle, and the signal input interfaces 11 and the signal output interfaces 12 can directly adopt male connectors of the electrical control circuit 9 in the device under test of the test vehicle, because the electrical control circuit connectors in the usual device under test of the test vehicle all adopt female connectors.
The power supply 701 is respectively connected with the printed circuit board, the touch display terminal 4, the driver controller 14, the work indicator lamp, the tested equipment socket board 13 and the test accompanying equipment 10 so as to achieve the purpose of power supply, and is also connected with the equipment power switch 8 so as to be convenient for operation and power supply. The sensor power supply 702, the relay control power supply 703 and the contactor feedback signal power supply 704 are respectively connected with respective corresponding electrical elements of the electrical control circuit 9, including a voltage sensor 901, a current sensor 903, a contactor 903 and an intermediate relay 904, so as to achieve the purpose of power supply. The test-accompanying apparatus 10 employs a brake resistor and a load motor.
The signal line input end and the signal line output end of the driver controller 14 are respectively integrated in the signal input interface 11 and the signal output interface 12, and the driver controller 14 is used for simulating a level signal in the traction converter so as to achieve the purpose of testing.
The display platform 1 of this example is embedded with two sets of work indicator lights, the work indicator light a16 is connected with the analog input/output module 501, and the work indicator light b17 is connected with the digital input/output module 502, so as to monitor the working states of the analog input/output module 501 and the digital input/output module 502.
And (3) detection process:
if a voltage signal in the traction converter is tested, as shown in fig. 3, the electrical control circuit 9 has at least one voltage signal test function circuit, specifically, a contactor 903, a voltage sensor 901, an intermediate relay 904, a sensor power source 702, a relay control power source 703, and a circuit formed by wiring a contactor feedback signal power source 704, and the specific process is to insert a plurality of sets of connectors of output ends and input ends of the electrical control circuit of the traction converter into a corresponding signal input interface 11 and a signal output interface 12 on the control platform 2, respectively, the traction converter is also connected with a brake resistor and a load motor, when a voltage analog signal command is given by the touch display terminal 4 as an excitation signal, the excitation signal is analyzed and converted by the communication protocol converter 6 and transmitted to the analog input/output module 501, the analog input/output module 501 transmits the excitation signal to the voltage signal test function circuit through the signal output interface 12 for processing, the processed excitation signal is given to the voltage signal circuit of the traction converter, the traction converter drives the brake resistor and the load motor to operate, and the voltage signal circuit of the traction converter drives the brake resistor and the load motor to operate, and the voltage signal circuit to be fed back to the touch display module through the signal input/output interface 11, and the touch display module 4, and finally, and the touch display is displayed on the touch display interface 4.
If the current signal in the auxiliary converter is tested, as shown in fig. 4, the electrical control circuit 9 has at least one current signal test function circuit, specifically, a circuit formed by connecting a contactor 903, a current sensor 903, an intermediate relay 904, a sensor power supply 702, a relay control power supply 703, and a contactor feedback signal power supply 704, and the specific process is the same as the above.
If the auxiliary current transformer is tested at high and low potentials, as shown in fig. 5, the electrical control circuit 9 has at least one high and low potential test function circuit, specifically, a circuit formed by connecting the intermediate relay 904 and the relay control power source 703, and the specific process is the same as the above, except that the data input/output module 5 works as the digital input/output module 502.
The present invention is not limited to the embodiment, and any equivalent concept or change within the technical scope of the present invention is all listed as the protection scope of the present invention.
Claims (10)
1. The comprehensive electrical test bed for the light rail vehicle comprises a display platform, an operation platform and a cabinet body, and is characterized by further comprising a touch display terminal, a data input/output module, a communication protocol converter, a power supply module, a plurality of electrical control circuits and test accompanying equipment;
a signal input interface and a signal output interface are embedded on the control platform;
the touch display terminal is a control terminal capable of running more than versions of Windows 7 (32 bit) system, and is provided with an RS585 communication interface and a storage module, and is configured with program files for inputting/outputting, identifying and judging excitation signal instructions and embedded on a display platform;
the data input/output module and the communication protocol converter are integrated on a printed circuit board, the printed circuit board is installed in the cabinet body, the communication protocol converter is respectively connected with the data input/output module and the touch display terminal through an RS585 communication cable and a CAN bus, and a data stream input end and an output end of the communication protocol converter are integrated in a signal input interface and a signal output interface through the RS585 communication cable;
the electric control circuit is a test function circuit consisting of a plurality of electric elements, the input end and the output end of the electric control circuit are respectively connected with the data input/output module, the input end and the output end of the electric control circuit are further respectively integrated in the signal input interface and the signal output interface, and the electric elements are arranged in the cabinet body;
the power supply module is arranged in the cabinet body and used for supplying power to the touch display terminal, the printed circuit board, the electric control circuit, the test accompanying equipment and the tested equipment of the test vehicle;
the accompanying and testing equipment is arranged inside the cabinet body.
2. The comprehensive electrical test bed for the light rail vehicle as claimed in claim 1, wherein a tested device socket board is embedded on the control platform, and the tested device socket board is connected with the power module in a wiring mode.
3. The comprehensive electrical test bed for the light rail vehicle as claimed in claim 1, wherein a driver controller is embedded on the control platform, the driver controller is connected with the power module through a power line, and the signal line input end and the signal line output end of the driver controller are respectively integrated in the signal input interface and the signal output interface.
4. The integrated electrical test stand for light rail vehicles according to claim 1, wherein at least one set of signal input interface and signal output interface is integrated on the control platform.
5. The integrated electrical test bed for light rail vehicles according to claim 1, wherein the data input/output module comprises an analog input/output module and a digital input/output module, and the analog input/output module and the digital input/output module are wired with the corresponding electrical control circuits.
6. The integrated electrical test stand for light rail vehicles according to claim 1, wherein the electrical components include a voltage sensor, a current sensor, a contactor, and an intermediate relay.
7. The integrated electrical test bed for light rail vehicles according to claim 1, wherein the power module comprises a power supply, a sensor power supply, a relay control power supply and a contactor feedback signal power supply.
8. The comprehensive electrical test bed for the light rail vehicle as claimed in claim 1, wherein the display platform is embedded with an equipment power switch, and the power switch is connected with the power module.
9. The integrated electrical test stand for light rail vehicles according to claim 1, wherein the display platform is further embedded with a working indicator light, and the working indicator light is connected with the corresponding connection analog input/output module and the digital input/output module.
10. The integrated electrical test bed for light rail vehicles according to claim 1, wherein the touch display terminal further comprises a USB interface for data export.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221986601.0U CN218524747U (en) | 2022-07-29 | 2022-07-29 | Comprehensive electrical test bed for light rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221986601.0U CN218524747U (en) | 2022-07-29 | 2022-07-29 | Comprehensive electrical test bed for light rail vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218524747U true CN218524747U (en) | 2023-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221986601.0U Active CN218524747U (en) | 2022-07-29 | 2022-07-29 | Comprehensive electrical test bed for light rail vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218524747U (en) |
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- 2022-07-29 CN CN202221986601.0U patent/CN218524747U/en active Active
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