CN216248238U - Locomotive grounding switch testing device - Google Patents
Locomotive grounding switch testing device Download PDFInfo
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- CN216248238U CN216248238U CN202121184597.1U CN202121184597U CN216248238U CN 216248238 U CN216248238 U CN 216248238U CN 202121184597 U CN202121184597 U CN 202121184597U CN 216248238 U CN216248238 U CN 216248238U
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Abstract
The embodiment of the utility model discloses a testing device of a grounding switch for a locomotive, which comprises a control module, an energy supply module, a state detection module and a power supply module, wherein the control module is used for controlling the power supply module to supply power to the grounding switch; the energy supply module is used for being connected with the grounding switch to be tested, generating an energy supply signal and providing test excitation for the grounding switch to be tested; the state detection module is used for being connected with the grounding switch to be detected and acquiring the running state information of the grounding switch to be detected in the detection process; the control module is used for controlling the energy supply module to generate the energy supply signal when a test instruction is acquired; and the power supply module is connected with the control module and used for providing electric energy for the control module. The testing device provided by the embodiment of the utility model realizes the effect of further reducing the workload of operators by reducing operation steps on the basis of accurately analyzing the state of the locomotive grounding switch through the synergistic effect of the control module, the energy supply module, the state detection module and the power supply module.
Description
Technical Field
The embodiment of the utility model relates to the technical field of electric control testing, in particular to a testing device for a grounding switch for a locomotive.
Background
With the continuous promotion of railway construction in China, the number of locomotives in operation is increased rapidly, locomotive equipment is aged and parts are seriously damaged after long-time operation, and locomotive testing and maintenance work needs to be carried out regularly by railway departments. As one of the key elements for ensuring the stable operation of the locomotive circuit, the grounding switch is a key test object for operators.
Currently, existing locomotive grounding switches typically require an operator to test by manually simulating the power supply. The operating personnel use different test equipment alternately to detect the state of the grounding switch, and after comprehensively analyzing a plurality of test results, the overall state of the locomotive grounding switch is evaluated based on the existing test experience.
For the locomotive grounding switch test mode of manual power supply simulation, firstly, the test time of the mode is long, the efficiency is low, and the test requirements of industrialization and automation are difficult to meet; secondly, the test equipment used in the method is complicated, and the test results of a plurality of pieces of equipment need to be comprehensively analyzed by operators, so that the operation difficulty and task burden of the operators are increased; and finally, the operating personnel judge the state of the locomotive grounding switch mechanism based on self test experience, so that the test precision of the locomotive grounding switch is reduced.
Disclosure of Invention
The embodiment of the utility model provides a testing device for a locomotive grounding switch, which is used for realizing the accurate test of the locomotive grounding switch and further reducing the workload of operators by reducing the operation steps.
The embodiment of the utility model provides a testing device of a grounding switch for a locomotive, which comprises a control module, an energy supply module, a state detection module and a power supply module, wherein the control module is used for controlling the power supply module to supply power to the grounding switch; wherein:
the energy supply module is used for being connected with the grounding switch to be tested, generating an energy supply signal and providing test excitation for the grounding switch to be tested;
the state detection module is used for being connected with the grounding switch to be detected and acquiring the running state information of the grounding switch to be detected in the detection process;
the control module is used for controlling the energy supply module to generate the energy supply signal when a test instruction is acquired; the energy supply module is also used for controlling the energy supply module to correspondingly change the energy supply signal when an energy supply signal change instruction is acquired;
the control module is further configured to acquire running state information of the grounding switch to be tested from the state detection module, and judge the running state of the grounding switch to be tested according to a set judgment rule according to the running state information of the grounding switch to be tested; the grounding switch is also used for being connected with a contact switch of the grounding switch to be tested so as to obtain the position state information of the contact switch, and judging the position state information of the grounding switch to be tested according to the position state information of the contact switch and a set judgment rule;
and the power supply module is connected with the control module and used for providing electric energy for the control module.
According to the technical scheme provided by the embodiment of the utility model, the power supply module is arranged to provide electric energy for the control module; the control module controls the energy supply module to provide action excitation for the grounding switch to be tested on the basis of the acquired operation instruction, and controls the state detection module to detect the running state information of the grounding switch to be tested; the control module finishes the test operation of the grounding switch to be tested by acquiring the running state information and the position state information of the grounding switch to be tested, overcomes the defects of long operation time, complex detection equipment and low test precision of the existing manual simulation power supply test mode, and achieves the effect of further lightening the work burden of operators by reducing operation steps on the basis of accurately testing the state of the grounding switch of the locomotive.
Drawings
Fig. 1 is a schematic structural diagram of a testing apparatus for a ground switch of a locomotive according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a testing apparatus for a ground switch of a locomotive according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a testing apparatus for a ground switch of a locomotive according to a third embodiment of the present invention;
fig. 4 is a block diagram of a testing apparatus for a grounding switch of a locomotive according to a third embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad invention. It should be further noted that, for convenience of description, only some structures, not all structures, relating to the embodiments of the present invention are shown in the drawings.
Example one
Fig. 1 is a schematic structural diagram of a testing apparatus for a ground switch of a locomotive according to an embodiment of the present invention. As shown in fig. 1, the ground switch testing apparatus for a motorcycle includes: a control module 110, an energy supply module 120, a state detection module 130, and a power supply module 140; wherein:
the energy supply module 120 is used for connecting with a grounding switch to be tested, generating an energy supply signal and providing test excitation for the grounding switch to be tested;
the state detection module 130 is configured to be connected to the ground switch to be detected, and acquire running state information of the ground switch to be detected in a detection process;
the control module 110 is configured to control the energy supply module 120 to generate the energy supply signal when the test instruction is obtained; the energy supply module is further configured to control the energy supply module 120 to correspondingly change the energy supply signal when an energy supply signal change instruction is obtained;
the control module 110 is further configured to obtain the running state information of the ground switch to be tested from the state detection module 130, and determine the running state of the ground switch to be tested according to a set determination rule according to the running state information of the ground switch to be tested; the grounding switch is also used for being connected with a contact switch of the grounding switch to be tested so as to obtain the position state information of the contact switch, and judging the position state information of the grounding switch to be tested according to the position state information of the contact switch and a set judgment rule;
the power module 140 is connected to the control module 110 and configured to provide power to the control module 110.
The energy supply module 120 may be a power supply or a combined energy supply device, which is not limited in this embodiment of the present invention; the connection link between the power supply module 120 and the ground switch to be tested may be an electrical link, for example, a cable, which is not limited in this embodiment of the present invention.
The grounding switch to be tested is used for receiving the energy supply signal generated by the energy supply module 120 and taking the energy supply signal as a test stimulus; the grounding switch to be tested can be an open grounding switch or a closed grounding switch; the number of poles of the grounding switch to be tested can be single, or can be two, or can be three; the installation position of the grounding switch to be tested can be the locomotive bottom, the locomotive roof or the inside of a locomotive high-voltage cabinet, and the embodiment of the utility model is not limited to this.
The energy supply signal is generated by the energy supply module 120 and is used for providing test excitation for the grounding switch to be tested; the type of the energy supply signal may be an electrical signal or a combined signal, which is not limited in the embodiment of the present invention; the transmission mode of the energy supply signal can be wired transmission or wireless transmission.
The state detection module 130 may be configured to detect an optical electrical signal, a force signal, a distance signal, a sound signal, a vibration signal, or an electromagnetic signal, for example, a photoelectric sensor, a force sensor, a distance sensor, a sound sensor, a vibration sensor, or a magnetic induction sensor, which is not limited in this embodiment of the present invention; the installation position of the state detection module 130 is related to the working principle and the specific structure of the grounding switch to be tested, which is not limited in the embodiment of the present invention.
The operation state information may be a detection object of the state detection module 130, or may be a judgment basis for the control module 110 to judge the operation state of the ground switch to be tested, which can reflect the operation state of the ground switch to be tested, and is related to the type or model of the ground switch to be tested, which is not limited in this embodiment of the present invention; the data signal type of the operation state information may be a photoelectric signal, a force signal, a distance signal, a sound signal, a vibration signal, or an electromagnetic signal; the transmission mode of the operation state information may be wired transmission or may be wireless transmission.
The control module 110 may be a single chip microcomputer, a system on a chip, a digital signal processor, or a PLC controller.
The test instruction is used for controlling the energy supply module 120 to generate the energy supply signal through the control module 110, and the number system of the test instruction may be binary, which is not limited in this embodiment of the present invention; the transmission mode of the test instruction can be wired transmission or wireless transmission.
The energy supply signal change instruction is used for controlling the energy supply signal to change correspondingly through the control module 110, and the number system of the energy supply signal change instruction may be binary, which is not limited in the embodiment of the present invention; the transmission mode of the energy supply signal change instruction can be wired transmission or wireless transmission.
The setting mode of the judgment rule can be set in advance for an operator, or can be set for system initialization.
Since the contact switches of different types or kinds of grounding switches have different working principles, the contact switches may be such that the opening and closing contacts respectively correspond to the normally closed and normally open contacts of the grounding switch, or the opening and closing contacts respectively correspond to the normally open and normally closed contacts of the grounding switch, which is not limited in the embodiments of the present invention.
In a specific example, when the grounding switch is in the open state, the normally closed contact of the contact switch is closed, and the state detection module 130 transmits the detected open position state information to the control module 110; when the ground switch is in a closed state, the normally open contact of the contact switch is closed, and the state detection module 130 transmits the detected closing position state information to the control module 110.
In another specific example, when the grounding switch is in the open state, the normally open contact of the contact switch is closed, and the state detection module 130 transmits the detected open position state information to the control module 110; when the grounding switch is in a closing state, the normally closed contact of the contact switch is closed, and the state detection module 130 transmits the detected closing position state information to the control module 110.
The power module 140 may be an adjustable switching power supply, which is not limited in this embodiment of the present invention; the signal output type of the power module 140 may be direct current, or may be alternating current.
According to the technical scheme of the embodiment, the power supply module is arranged to provide electric energy for the control module; the control module controls the energy supply module to provide action excitation for the grounding switch to be tested on the basis of the acquired operation instruction, and controls the state detection module to detect the running state information of the grounding switch to be tested; the control module finishes the test operation of the grounding switch to be tested by acquiring the running state information and the position state information of the grounding switch to be tested, overcomes the defects of long operation time, complex detection equipment and low test precision of the existing manual simulation power supply test mode, and achieves the effect of further lightening the work burden of operators by reducing operation steps on the basis of accurately testing the state of the grounding switch of the locomotive.
Example two
Fig. 2 is a schematic structural diagram of a testing apparatus for a ground switch of a locomotive in a second embodiment of the present invention, which is further refined and added based on the above-mentioned embodiment. As shown in fig. 2, the ground switch testing apparatus for a motorcycle includes: a control module 110, an energy supply module 120, a state detection module 130, and a power supply module 140; further comprising:
the interaction module 150 is connected with the control module 110 and is used for generating and sending the test command and the energy supply signal change command to the control module 110; and the system is also used for displaying the running state information of the grounding switch to be tested and the position state information of the grounding switch to be tested.
Optionally, the energy supply module 120 comprises at least an adjustable current source 121;
the adjustable current source 121 is specifically configured to be connected to a main contact of the grounding switch to be tested, so as to generate a current energy supply signal, and provide test excitation for the grounding switch to be tested.
Optionally, the state detection module 130 includes at least one of: a voltage sensor 131, a current sensor 132, or an angle sensor 133;
the voltage sensor 131 is specifically configured to be connected to the grounding switch to be tested, and detect voltage operation state information of the grounding switch to be tested in a testing process;
the current sensor 132 is specifically configured to be connected to a loop of the ground switch to be tested, and detect loop current running state information of the ground switch to be tested in a test process;
the angle sensor 133 is specifically configured to be connected to a ground switch to be tested, and in the testing process, detects the information of the operation state of the opening and closing angle of the ground switch to be tested.
Optionally, the test instruction at least includes: a contact resistance test instruction;
the control module 110 is specifically configured to control the energy supply module 120 to generate the current energy supply signal according to a contact resistance test instruction in the test instruction.
Optionally, the energizing signal change instruction at least includes: a current increase command or a current decrease command.
Optionally, the control module 110 is specifically configured to control the energy supply module 120 to increase the current output value according to a current increase command in the energy supply signal change command;
and controlling the energy supply module 120 to reduce the current output value according to the current reduction command in the energy supply signal change command.
The interactive module 150 may be an industrial personal computer, or may be a ground station, or may be a laptop.
The test instruction may be generated according to a key setting of the operator, or may be generated according to a handwriting input setting of the operator using the touch screen, or may be generated according to a voice setting of the operator, or may be generated according to any combination of the above manners, for example, the operator may start the test apparatus by pressing a "start" key, or the operator may start the test apparatus by manually writing "start" using the touch screen, or the operator may start the test apparatus by dictating "start test".
The energy supply signal change instruction may be generated according to a key setting of an operator, or may be generated according to a handwriting input setting of the operator by using a touch screen, or may be generated according to a voice setting of the operator, or may be generated according to any combination of the above manners, for example, the operator may set the test current parameter increase 50A by pressing keys of "Δ", "5" and "0", or may set the test current parameter decrease 50A by manually writing "50" by using the touch screen, or may set the test current parameter increase 50A by dictating "increase fifty amperes".
The transmission signal carrying medium of the test command and the energizing signal change command may be a wired signal line or a wireless signal line, which is not limited in this embodiment of the present invention.
The display mode of the running state information and the position state information of the grounding switch to be tested can be displayed through a display screen, for example, the running state information and the position state information can be displayed through a cathode ray tube display screen, a flat panel display screen or a liquid crystal display screen in a text or digital mode; or the display can be through the indicator light, for example, any color and number of indicator lights or indicator light groups are displayed in a way of being constantly on or alternately on and off at a specific frequency; or the method may be a voice or sound prompting method, for example, the abnormal condition of the grounding switch to be tested may be prompted by broadcasting "the grounding switch to be tested is normal" through a loudspeaker or by a buzzer sounding at any frequency for a long time.
The type of the adjustable current source 121 may be a pulse width modulation type, a pulse frequency modulation type, a pulse density modulation type, or a hybrid modulation type; the main contact of the grounding switch to be tested is used for being connected with the adjustable current source 121 and receiving the current energy supply signal; the adjustable current source 121, the main contact of the grounding switch to be tested, and the ground can form a current loop to be tested.
The voltage sensor 131 may be a variable frequency power sensor, a resistor divider, a capacitor divider, an electromagnetic voltage transformer, a capacitor voltage transformer, or a hall voltage sensor; the voltage sensor 131 and the grounding switch to be tested may be connected in parallel, which is not limited in the embodiment of the present invention; the output signal of the voltage sensor 131 may be an analog quantity, or may be a digital quantity.
The current sensor 132 may be a rogowski coil, a current transformer, a current divider, an optical fiber current sensor, or a variable frequency power sensor; the current sensor 132 and the loop of the grounding switch to be tested may be connected in series, which is not limited in this embodiment of the present invention; the testing principle of the current sensor 132 may be giant magnetoresistance effect, anisotropy, tunneling effect, optical effect, or hall effect.
The angle sensor 133 may be a wire-wound angle sensor, or may be a composite film angle sensor, or may be a glass-glaze angle sensor; the installation position of the angle sensor 133 may be the contact switch position of the grounding switch to be tested, or may be any spatial position capable of directly detecting the opening and closing angle operation state information of the grounding switch to be tested.
According to the technical scheme, the interaction module is arranged, the state information of the grounding switch to be tested acquired by the control module is converted into the visual interaction information, the defects that the test result of the existing locomotive grounding switch test mode for manually simulating power supply is not accurate and the man-machine interaction performance is poor are overcome, and the man-machine interaction performance of the device is improved on the basis that the grounding switch state information is accurately displayed.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a testing apparatus for a locomotive grounding switch in a third embodiment of the present invention, and fig. 4 is a block diagram of the testing apparatus for a locomotive grounding switch in the third embodiment of the present invention. As shown in fig. 3, the ground switch testing apparatus for a motorcycle includes: a control module 110, an energy supply module 120, a state detection module 130, a power supply module 140, and an interaction module 150;
optionally, the control module 110 specifically includes:
the resistance judgment unit 111 is configured to calculate a contact resistance value of the ground switch to be tested according to the voltage operation state information of the ground switch to be tested and the loop current operation state information of the ground switch to be tested, and compare the contact resistance value of the ground switch to be tested with a standard resistance value;
if the contact resistance value of the grounding switch to be tested is in a normal range, controlling the interaction module 150 to display preset display information that the contact resistance is normal;
and if the contact resistance value of the grounding switch to be tested is not in the normal range, controlling the interaction module 150 to display the preset display information of the contact resistance abnormality.
Optionally, the control module 110 further includes:
the angle judging unit 112 is configured to compare the opening and closing angle value of the ground switch to be tested with the opening and closing angle standard value according to the information of the operation state of the opening and closing angle of the ground switch to be tested;
if the opening and closing angle value of the grounding switch to be tested is in a normal range, controlling the interaction module 150 to display preset display information that the switch is normally opened and closed;
and if the opening and closing angle value of the grounding switch to be tested is not in the normal range, controlling the interaction module 150 to display the preset display information of abnormal opening and closing of the switch.
The calculation principle of the contact resistance value of the grounding switch to be tested may be ohm's law, which is not limited in the embodiment of the present invention.
And the standard resistance value is used for comparing with the contact resistance value of the grounding switch to be detected so as to judge whether the grounding switch to be detected has abnormal conditions such as oxidation, abrasion and the like.
The standard resistance value may be a resistance value calculated by an operator according to various parameters recorded by a name plate of the grounding switch, or may be an average value obtained after the operator uses a specific device to measure the contact resistance of the grounding switch for multiple times, or may be a resistance value set in advance by the operator according to the existing operation experience.
The way for comparing the contact resistance value of the ground switch to be tested with the standard resistance value by the resistance determination unit 111 may be subtraction or division, which is not limited in the embodiment of the present invention.
And the opening and closing angle standard value is used for comparing with the opening and closing angle value of the grounding switch to be detected so as to judge whether the grounding switch to be detected has abnormal conditions such as corrosion, jamming and the like.
The standard value of the opening and closing angle may be an average value obtained after an operator uses a specific device to measure the opening and closing angle of the earthing switch for a plurality of times, or may be an opening and closing angle value set in advance by the operator according to the existing operation experience.
The way for comparing the opening and closing angle value of the grounding switch to be tested and the opening and closing angle standard value by the angle judgment unit 112 may be subtraction or division, which is not limited in the embodiment of the present invention.
The display mode of the preset display information can be display through a display screen, for example, the display mode can be character display of 'normal contact resistance', 'abnormal contact resistance', 'normal switch on-off' or 'abnormal switch on-off' through a cathode ray tube display screen, a flat panel display screen or a liquid crystal display screen; or the display can be through the indicator light, for example, any color and number of indicator lights or indicator light groups are displayed in a way of being constantly on or alternately on and off at a specific frequency; or the sound or voice prompt mode may be used, for example, the "contact resistance is normal", "contact resistance is abnormal", "switch on/off is normal", or "switch on/off is abnormal" may be reported through a speaker, or the buzzer sounds at any frequency for a long time to prompt the contact resistance is abnormal or the switch on/off is abnormal.
As shown in fig. 4, the ground switch testing apparatus for a motorcycle includes: a control module 110, an energy supply module 120, a state detection module 130, a power supply module 140, and an interaction module 150;
optionally, the control module 110 is connected to the interaction module 150 through a communication port; the grounding switch is connected with a contact switch of the grounding switch to be tested through an input port; is connected with the energy supply module 120 through an output port; connected to the status detection module 130 via a feedback port.
The communication port is used for receiving the test command and the energy supply signal change command generated by the interaction module 150; the input port is used for receiving the position state information of the contact switch of the grounding switch to be tested; the output port is used for controlling the energy supply module 120 to generate the energy supply signal and controlling the energy supply signal to change correspondingly; the feedback port is configured to receive the running state information of the grounding switch to be tested, which is obtained by the state detection module 130; the port may be a Serial port, a General-Purpose Interface Bus (GPIB), a Universal Serial Bus (USB), a wireless port, or an optical fiber port.
In a specific example, the industrial personal computer communicates with the PLC through the RS485 interface, the adjustable switching power supply is connected with the PLC through an electric circuit to provide electric energy for the PLC, the adjustable current source is connected with the PLC through a control line, and the voltage sensor, the current sensor, the angle sensor and the PLC are connected through an analog quantity signal link, so that action command transmission and operation data exchange of the grounding switch and the industrial personal computer are completed.
After an operator sets an increasing or decreasing value of a current parameter through a key, a touch screen is used for inputting a test instruction, a test system starts to work, a PLC (programmable logic controller) controls a working value of an adjustable current source, and signals are transmitted to a grounding switch through each sensor; after the earthing switch acts, a contact switch of the earthing switch transmits a feedback signal to the PLC, each sensor transmits the acquired signal to the PLC, the PLC converts the signal data into effective data and transmits the effective data to the industrial personal computer, and the industrial personal computer receives and displays the running state and the test parameters of the earthing switch uploaded by the PLC.
The technical scheme of this embodiment, judge the unit and the angle through setting up resistance, the earthing switch current that awaits measuring that feeds back with the state detection module, voltage and angle analog are converted into the digital quantity, through with the comparison of standard value back, through the means of interactive module demonstration judgement result, the locomotive earthing switch test mode degree of automation who has overcome current manual simulation power supply is low, the test is not accurate and the problem that human-computer interaction performance is poor, on the basis that the realization carries out accurate judgement and demonstration to earthing switch state information, the human-computer interaction performance of device has been promoted.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. The testing device for the locomotive grounding switch is characterized by comprising a control module, an energy supply module, a state detection module and a power supply module; wherein:
the energy supply module is used for being connected with the grounding switch to be tested, generating an energy supply signal and providing test excitation for the grounding switch to be tested;
the state detection module is used for being connected with the grounding switch to be detected and acquiring the running state information of the grounding switch to be detected in the detection process;
the control module is used for controlling the energy supply module to generate the energy supply signal when a test instruction is acquired; the energy supply module is also used for controlling the energy supply module to correspondingly change the energy supply signal when an energy supply signal change instruction is acquired;
the control module is further configured to acquire running state information of the grounding switch to be tested from the state detection module, and judge the running state of the grounding switch to be tested according to a set judgment rule according to the running state information of the grounding switch to be tested; the grounding switch is also used for being connected with a contact switch of the grounding switch to be tested so as to obtain the position state information of the contact switch, and judging the position state information of the grounding switch to be tested according to the position state information of the contact switch and a set judgment rule;
and the power supply module is connected with the control module and used for providing electric energy for the control module.
2. The apparatus of claim 1, further comprising:
the interaction module is connected with the control module and used for generating and sending the test instruction and the energy supply signal change instruction to the control module; and the system is also used for displaying the running state information of the grounding switch to be tested and the position state information of the grounding switch to be tested.
3. The apparatus of claim 1, wherein the energizing module comprises at least an adjustable current source;
the adjustable current source is specifically used for being connected with the main contact of the grounding switch to be tested, so as to generate a current energy supply signal and provide test excitation for the grounding switch to be tested.
4. The apparatus of claim 1, wherein the status detection module comprises at least one of: a voltage sensor, a current sensor, or an angle sensor;
the voltage sensor is specifically used for being connected with the grounding switch to be tested and detecting the voltage running state information of the grounding switch to be tested in the testing process;
the current sensor is specifically used for being connected with a loop of the grounding switch to be tested, and detecting the loop current running state information of the grounding switch to be tested in the testing process;
the angle sensor is specifically used for being connected with the grounding switch to be tested, and detecting the opening and closing angle running state information of the grounding switch to be tested in the testing process.
5. The apparatus of claim 2, wherein:
the control module is connected with the interaction module through a communication port; the grounding switch is connected with a contact switch of the grounding switch to be tested through an input port; the power supply module is connected with the power supply module through an output port; and the state detection module is connected with the feedback port.
6. The apparatus of claim 3, wherein the test instructions comprise at least: a contact resistance test instruction;
the control module is specifically used for controlling the energy supply module to generate the current energy supply signal according to a contact resistance test instruction in the test instruction.
7. The apparatus according to claim 1 or 2, wherein the energizing signal change command includes at least: a current increase command or a current decrease command.
8. The apparatus of claim 7, wherein:
the control module is specifically used for controlling the energy supply module to increase the current output value according to a current increase instruction in the energy supply signal change instruction;
and controlling the energy supply module to reduce the current output value according to the current reduction command in the energy supply signal change command.
9. The device according to claim 2 or 4, wherein the control module specifically comprises:
the resistance judgment unit is used for calculating the contact resistance value of the grounding switch to be tested according to the voltage running state information of the grounding switch to be tested and the loop current running state information of the grounding switch to be tested, and comparing the contact resistance value of the grounding switch to be tested with a standard resistance value;
if the contact resistance value of the grounding switch to be tested is in a normal range, controlling the interaction module to display the preset display information that the contact resistance is normal;
and if the contact resistance value of the grounding switch to be tested is not in a normal range, controlling the interaction module to display the preset display information of the contact resistance abnormality.
10. The apparatus of claim 9, wherein the control module further comprises:
the angle judging unit is used for comparing the opening and closing angle value of the grounding switch to be tested with the opening and closing angle standard value according to the opening and closing angle running state information of the grounding switch to be tested;
if the opening and closing angle value of the grounding switch to be tested is in a normal range, controlling the interaction module to display preset display information that the switch is normally opened and closed;
and if the opening and closing angle value of the grounding switch to be tested is not in the normal range, controlling the interaction module to display preset display information of abnormal opening and closing of the switch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121184597.1U CN216248238U (en) | 2021-05-28 | 2021-05-28 | Locomotive grounding switch testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121184597.1U CN216248238U (en) | 2021-05-28 | 2021-05-28 | Locomotive grounding switch testing device |
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