Testing device and testing equipment for intelligent terminal of voltage regulating pry

Abstract

The invention provides a test device and test equipment for an intelligent terminal of a voltage regulating pry. The test device for the intelligent terminal of the voltage regulating pry comprises a connecting assembly, at least one test module, a metering detection module and a control module, the test module comprises a switch unit and a driving unit, and the connection assembly can be configured to make a first end and a second end of the switch unit contact or break contact with a port of a terminal to be tested; the driving unit is connected with the control module and the switch unit, the control module is used for controlling connection or disconnection between the second end and the third end of the switch unit through the driving unit, the third end of the switch unit is connected with the metering detection module, and the metering detection module is used for outputting metering data; the at least one test module further comprises a load unit; the load unit is connected with the first end and the second end of the switch unit; and the control module tests the tested terminal according to the metering data. The intelligent terminal testing device of the voltage regulating pry can judge the function problem of the module with high efficiency and high accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit design, and in particular to a voltage regulating skid intelligent terminal testing device and testing equipment. Background Art

[0002] The voltage regulating skid intelligent control module is a key component used in voltage regulating skid equipment, with intelligent control and management functions.

[0003] During the production process of the voltage-regulating skid's intelligent control module, functional testing and verification of the module's final assembly are required. Currently, production personnel generally implement testing and verification by connecting external devices such as fans, alarms, and solenoid valves to the intelligent control module. However, wiring is time-consuming and poses safety risks, resulting in low production efficiency. Summary of the Invention

[0004] The present invention provides a voltage regulating skid intelligent terminal testing device and testing equipment to solve the problem of low production efficiency in the prior art.

[0005] According to one aspect of the present invention, there is provided a voltage regulating skid intelligent terminal testing device, comprising a connection component, at least one testing module, a metering and detection module, and a control module;

[0006] The test module includes a switch unit and a drive unit, the switch unit includes a first end, a second end and a third end; the connection component can be configured to connect or disconnect the first end and the second end of the switch unit with the port of the terminal under test;

[0007] The driving unit is connected to the control module and the switch unit, the control module is used to control the connection or disconnection between the second end and the third end of the switch unit through the driving unit, the third end of the switch unit is connected to the measurement detection module, and the measurement detection module is used to output measurement data;

[0008] At least one of the test modules further comprises a load unit connected to the first end and the second end of the switch unit;

[0009] The control module is also connected to the measurement detection module, and the control module is further used to test the terminal under test according to the measurement data.

[0010] Optionally, the at least one test module includes an alarm test module, the alarm test module including a first drive unit and a first switch unit, the control end of the first drive unit being connected to the control module, the output end of the first drive unit being connected to the control end of the first switch unit, the first end and the second end of the first switch unit being connected to the connection component, and the third end of the first switch unit being connected to the metering detection module, the control module being configured to output a first start signal, the first drive unit being configured to control the second end and the third end of the first switch unit to be conductive according to the first start signal, the alarm test module being configured to test the alarm voltage output by the terminal under test and output a first test signal when the first switch unit is conductive, and the metering detection module being configured to output first metering data according to the first test signal;

[0011] And / or, the at least one test module includes a fan test module, the fan test module includes a second drive unit, a second switch unit and a fan load unit, the control end of the second drive unit is connected to the control module, the output end of the second drive unit is connected to the control end of the second switch unit, the first end and the second end of the second switch unit are connected to the connection component, and the third end of the second switch unit is connected to the metering and detection module, the control module is used to output a second start signal, the second drive unit is used to control the second end and the third end of the second switch unit to be conductive according to the second start signal, the fan test module is used to test the fan power supply voltage output by the tested terminal when the second switch unit is conductive and output a second test signal, the fan load unit is connected between the first end and the second end of the second switch unit, the fan load unit is used to adjust the second test signal, and the metering and detection module is used to output second metering data according to the second test signal;

[0012] And / or, the at least one test module includes a solenoid valve test module, the solenoid valve test module includes a third drive unit, a third switch unit and a solenoid valve load unit, the control end of the third drive unit is connected to the control module, the output end of the third drive unit is connected to the control end of the third switch unit, the first end and the second end of the third switch unit are connected to the connection component, the third end of the third switch unit is connected to the metering detection module, the control module is used to output a third start signal, the third drive unit is used to control the second end and the third end of the third switch unit to be turned on according to the third start signal, the solenoid valve test module is used to test the solenoid valve supply voltage output by the tested terminal when the third switch unit is turned on, and output a third test signal, the solenoid valve load unit is connected between the first end and the second end of the third switch unit, the solenoid valve load unit is used to adjust the third test signal, and the metering detection module is used to output third metering data according to the third test signal.

[0013] Optionally, the first switching unit includes a first relay, the first driving unit includes a first transistor, a first diode, a first resistor and a second resistor, the first end of the first resistor is connected to the control end of the first driving unit, the second end of the first resistor is connected to the first end of the second resistor and the control end of the first transistor, the second end of the second resistor and the first end of the first transistor are grounded, the second end of the first transistor is connected to the first end of the first diode and the first end of the coil of the first relay, the second end of the coil of the first relay and the second end of the first diode are connected to the first power supply end, the first end of the contact of the first relay is connected to the first end of the first switching unit, the second end of the contact of the first relay is connected to the second end of the first switching unit, the third end of the contact of the first relay is connected to the third end of the first switching unit, and the fourth end of the contact of the first relay is grounded.

[0014] Optionally, the second switch unit includes a second relay, the second drive unit includes a second transistor, a second diode, a third resistor and a fourth resistor, and the wind turbine load unit includes a fifth resistor; the first end of the third resistor is connected to the control end of the second drive unit, the second end of the third resistor is connected to the first end of the fourth resistor and the control end of the second transistor, the second end of the fourth resistor and the first end of the second transistor are grounded, the second end of the second transistor is connected to the first end of the second diode and the first end of the coil of the second relay, the second end of the coil of the second relay and the second end of the second diode are connected to the first power supply end, the first end of the contact of the second relay is connected to the first end of the second switch unit, the second end of the contact of the second relay is connected to the second end of the second switch unit, the third end of the contact of the second relay is connected to the third end of the second switch unit, the fourth end of the contact of the second relay is grounded, the first end of the fifth resistor is connected to the first end of the second switch unit, and the second end of the fifth resistor is connected to the second end of the second switch unit.

[0015] Optionally, the third switch unit includes a third relay, the third drive unit includes a third transistor, a third diode, a sixth resistor and a seventh resistor, and the solenoid valve load unit includes an eighth resistor; the first end of the sixth resistor is connected to the control end of the third drive unit, the second end of the sixth resistor is connected to the first end of the seventh resistor and the control end of the third transistor, the second end of the seventh resistor and the first end of the third transistor are grounded, the second end of the third transistor is connected to the first end of the third diode and the first end of the coil of the third relay, the second end of the coil of the third relay and the second end of the third diode are connected to the first power supply end, the first end of the contact of the third relay is connected to the first end of the third switch unit, the second end of the contact of the third relay is connected to the second end of the third switch unit, the third end of the contact of the third relay is connected to the third end of the third switch unit, the fourth end of the contact of the third relay is grounded, the first end of the eighth resistor is connected to the first end of the third switch unit, and the second end of the eighth resistor is connected to the second end of the third switch unit.

[0016] Optionally, the voltage regulating skid intelligent terminal testing device further includes a communication isolation module, which is connected to the metering and detection module and the control module, and is used to isolate and transmit communication data between the metering and detection module and the control module.

[0017] Optionally, the communication isolation module includes a first optocoupler, a second optocoupler, a fourth transistor and a fifth transistor, the first end of the first optocoupler is connected to the first end of the fourth transistor, the second end of the fourth transistor is grounded, the control end of the fourth transistor is connected to the metering and detection module, the second end of the first optocoupler is connected to the second power supply end, the third end of the first optocoupler is connected to the control module and the third power supply end, the fourth end of the first optocoupler is grounded, the first end of the second optocoupler is connected to the first end of the fifth transistor, the second end of the fifth transistor is grounded, the control end of the fifth transistor is connected to the control module, the second end of the second optocoupler is connected to the third power supply end, the third end of the second optocoupler is connected to the metering and detection module and the second power supply end, and the fourth end of the second optocoupler is grounded.

[0018] Optionally, the voltage regulating skid intelligent terminal testing device also includes a power supply module, which is connected to the test module, the metering and detection module and the control module, and is used to supply power to the test module, the metering and detection module and the control module; the power supply module includes a first power supply unit and a second power supply unit, the first power supply unit is connected to the metering and detection module, and the second power supply unit is connected to the test module and the control module, the first power supply unit is used to supply power to the metering and detection module, and the second power supply unit is used to supply power to the test module and the control module.

[0019] Optionally, the first power supply unit includes a first voltage conversion chip, a second voltage conversion chip and an isolation chip, the first voltage conversion chip is used to perform voltage conversion on the input voltage signal, the isolation chip is connected to the first voltage conversion chip, the isolation chip is used to isolate and output the input voltage signal, the second voltage conversion chip is connected to the isolation chip, the second voltage conversion chip is used to perform voltage conversion on the input voltage signal and output a second power supply; the second power supply unit includes a third voltage conversion chip and a fourth voltage conversion chip, the third voltage conversion chip is used to perform voltage conversion on the input voltage signal and output a first power supply, the fourth voltage conversion chip is connected to the third voltage conversion chip, and the fourth voltage conversion chip is used to perform voltage conversion on the first power supply and output a third power supply.

[0020] According to another aspect of the present invention, a test device is provided, comprising a circuit board, a structural component, and the voltage-regulating pry intelligent terminal testing device, wherein the voltage-regulating pry intelligent terminal testing device is integrated on the circuit board, the structural component comprises an assembly hole, and the terminal under test comprises a screw hole, and the structural component is used to align the assembly hole with the screw hole to assemble and position the terminal under test and the testing device.

[0021] According to the technical solution of the embodiment of the present invention, the voltage regulating skid intelligent terminal test device includes a connection component, at least one test module, a metering detection module and a control module; the test module includes a switch unit and a drive unit, and the connection component can be configured to connect or disconnect the first and second ends of the switch unit with the port of the terminal under test; the drive unit connects the control module and the switch unit, and the control module is used to control the connection or disconnection between the second and third ends of the switch unit through the drive unit, and the third end of the switch unit is connected to the metering detection module, and the metering detection module is used to output metering data; at least one test module also includes a load unit, and the load unit is connected to the first and second ends of the switch unit; the control module tests the terminal under test according to the metering data. The present invention realizes the contact or disconnection between the test device and the terminal under test by setting a connection component, and has the effect of easy installation and plug-and-test. At the same time, by setting at least one test module, multiple functions of the terminal under test can be tested, and by setting a load unit, test data of the terminal under test under different load conditions can be simulated, thereby improving detection efficiency and accuracy and solving the problem of low production efficiency in the prior art.

[0022] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a structural diagram of a voltage regulating skid intelligent terminal testing device provided by an embodiment of the present invention;

[0025] Figure 2 This is a circuit diagram of a voltage regulating skid intelligent terminal testing device provided by an embodiment of the present invention;

[0026] Figure 3 is a circuit diagram of a communication isolation module provided by an embodiment of the present invention;

[0027] Figure 4 is a circuit diagram of a power module provided by an embodiment of the present invention;

[0028] Figure 5 This is a circuit diagram of another voltage regulating skid intelligent terminal testing device provided by an embodiment of the present invention;

[0029] Figure 6 It is an assembly drawing of a test device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0031] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0032] The embodiment of the present invention provides a voltage regulating skid intelligent terminal testing device, Figure 1 This is a schematic diagram of the structure of a voltage regulating skid intelligent terminal testing device provided by an embodiment of the present invention. Figure 1 As shown, the voltage regulating skid intelligent terminal testing device 100 includes a connection component 110, at least one test module 120, a measurement detection module 130 and a control module 140; the test module 120 includes a switch unit 121 and a drive unit 122, the switch unit 121 includes a first end a1, a second end a2 and a third end a3; the connection component 110 can be configured to connect or disconnect the first end a1 and the second end a2 of the switch unit 121 with the port of the terminal under test; the drive unit 122 connects the control module 140 and the switch unit 121, and the control module 120 includes a first end a1, a second end a2 and a third end a3. Block 140 is used to control the conduction or disconnection between the second end a2 and the third end a3 of the switch unit 121 through the driving unit 122. The third end a3 of the switch unit 121 is connected to the metering detection module 130, and the metering detection module 130 is used to output metering data; at least one test module 120 also includes a load unit 123, which is connected to the first end a1 and the second end a2 of the switch unit 121; the control module 140 is also connected to the metering detection module 130, and the control module 140 is also used to test the terminal under test according to the metering data.

[0033] In an embodiment of the present invention, the connection component 110 is an element that realizes the electrical connection between the test device and the terminal under test. For example, the connection component includes a probe that performs a plug-in connection between the test device and the terminal under test. The test module 120 is a module that tests the parameters output by the terminal under test. The driving unit 122 is a unit that drives the switch unit to conduct. The switch unit 121 is a unit that is turned on or off according to the signal output by the driving unit. For example, the switch unit 121 includes a switching element, etc. The load unit 123 is a unit that simulates the load of the terminal under test. For example, the load unit includes elements such as a load resistor. The measurement and detection module 130 is a module that accurately measures the test signal output by the test module. For example, the measurement and detection module 130 includes a metering chip, etc. The control module 140 is a module responsible for executing instructions, performing various data storage, calculations and logical judgments, and controlling the operation of the entire system.

[0034] In an embodiment of the present invention, a voltage-regulating skid intelligent terminal testing device 100 is connected to the terminal under test via a connecting assembly 110. A control module 140 controls the drive unit 122 to output a drive signal, causing the switch unit 121 to conduct in response to the drive signal, and the test module 120 to output a test signal. The metering and detection module 130 performs precise measurements based on the test signal. For example, if the test signal is a voltage signal, the metering and detection module 130 uses the voltage division principle to divide the measured voltage, samples it, and quantizes it. Using an electric energy metering algorithm, it calculates relevant parameters of the electric energy and outputs metering data, which is a digital signal. The control module 140 measures the status of the terminal under test based on the metering signal.

[0035] The technical solution of this embodiment is that the voltage regulating skid intelligent terminal testing device includes a connection component, at least one test module, a metering detection module and a control module; the test module includes a switch unit and a drive unit, and the connection component can be configured to connect or disconnect the first and second ends of the switch unit with the port of the terminal under test; the drive unit connects the control module and the switch unit, and the control module is used to control the connection or disconnection between the second and third ends of the switch unit through the drive unit, and the third end of the switch unit is connected to the metering detection module, and the metering detection module is used to output metering data; at least one test module also includes a load unit, and the load unit is connected to the first and second ends of the switch unit; the control module tests the terminal under test based on the metering data. The present invention realizes the contact or disconnection between the test device and the terminal under test by setting a connection component, and has the effect of easy installation and plug-and-test. At the same time, by setting at least one test module, multiple functions of the terminal under test can be tested. By setting a load unit, test data of the terminal under test under different load conditions can be simulated, thereby improving detection efficiency and accuracy and solving the problem of low production efficiency in the prior art.

[0036] Figure 2This is a circuit diagram of a voltage regulating skid intelligent terminal testing device provided by an embodiment of the present invention. Figure 2 As shown, at least one test module includes an alarm test module 210, and the alarm test module 210 includes a first drive unit 211 and a first switch unit 212. The control end of the first drive unit 211 is connected to the control module 140, and the output end of the first drive unit 211 is connected to the control end of the first switch unit 212. The first end and the second end of the first switch unit 212 are connected to the connection component 110, and the third end of the first switch unit 212 is connected to the metering detection module 130. The control module 140 is used to output a first start signal, and the first drive unit 211 is used to control the second end and the third end of the first switch unit 212 to be turned on according to the first start signal. The alarm test module 210 is used to test the alarm voltage output by the terminal under test when the first switch unit 212 is turned on, and output a first test signal. The metering detection module 130 is used to output first metering data according to the first test signal.

[0037] In an embodiment of the present invention, the alarm test module 210 is a module that tests the alarm voltage output by the terminal under test. The first drive unit 211 drives the first switch unit 212 to conduct, and the first switch unit 212 is turned on or off based on the signal output by the first drive unit 212. Based on the above embodiment, after the connection component 110 connects the alarm test module 210 to the terminal under test, the control module 140 outputs a first activation signal, and the first drive unit 211 controls the second and third terminals of the first switch unit 212 to conduct based on the first activation signal. When the first switch unit 212 is turned on, the alarm test module 210 tests the alarm voltage output by the terminal under test and outputs a first test signal. The metering and detection module 130 outputs first metering data based on the first test signal. The control module 140 implements the alarm voltage test of the terminal under test based on the first metering data.

[0038] And / or, at least one test module includes a fan test module 220, the fan test module 220 includes a second drive unit 221, a second switch unit 222 and a fan load unit 223, the control end of the second drive unit 221 is connected to the control module 140, the output end of the second drive unit 221 is connected to the control end of the second switch unit 222, the first end and the second end of the second switch unit 222 are connected to the connection component 110, and the third end of the second switch unit 222 is connected to the metering and detection module 130, the control module 140 is used to output a second start signal, the second drive unit 221 is used to control the second end and the third end of the second switch unit 222 to be conductive according to the second start signal, the fan test module 220 is used to test the fan power supply voltage output by the tested terminal when the second switch unit 222 is turned on, and output a second test signal, the fan load unit 223 is connected between the first end and the second end of the second switch unit 222, the fan load unit 223 is used to adjust the second test signal, and the metering and detection module 130 is used to output second metering data according to the second test signal.

[0039] In this embodiment of the present invention, the fan test module 220 tests the fan supply voltage output by the terminal under test. The second drive unit 221 drives the second switch unit 222 to conduct, and the second switch unit 222 switches on or off based on the signal output by the second drive unit 221. Based on the above embodiment, after the connection assembly 110 connects the fan test module 220 to the terminal under test, the control module 140 outputs a second activation signal. The second drive unit 221 controls the second and third terminals of the second switch unit 222 to conduct according to the second activation signal. When the second switch unit 222 is turned on, the fan test module 220 tests the fan supply voltage output by the terminal under test and outputs a second test signal. The metering and detection module 130 outputs second metering data based on the second test signal. The control module 140 tests the fan supply voltage of the terminal under test based on the second metering data. The fan load unit 223 simulates the fan load. Based on the fan supply voltage and the simulated load, it can measure and test the fan current of the terminal under test.

[0040] And / or, at least one test module includes a solenoid valve test module 230, the solenoid valve test module 230 includes a third drive unit 231, a third switch unit 232 and a solenoid valve load unit 233, the control end of the third drive unit 231 is connected to the control module 140, the output end of the third drive unit 231 is connected to the control end of the third switch unit 232, the first end and the second end of the third switch unit 232 are connected to the connection component 110, and the third end of the third switch unit 232 is connected to the metering and detection module 130. The control module 140 is used to output a third start signal, and the third drive unit 231 is used to control the second end and the third end of the third switch unit 232 to be conductive according to the third start signal. The solenoid valve test module 230 is used to test the solenoid valve supply voltage output by the tested terminal when the third switch unit 232 is turned on, and output a third test signal. The solenoid valve load unit 233 is connected between the first end and the second end of the third switch unit 232, the solenoid valve load unit 233 is used to adjust the third test signal, and the metering and detection module 130 is used to output third metering data according to the third test signal.

[0041] In this embodiment of the present invention, the solenoid valve test module 230 tests the solenoid valve supply voltage output by the terminal under test. The third drive unit 231 drives the third switch unit 232 to conduct, and the third switch unit 232 switches on or off based on the signal output by the third drive unit 231. Based on the above embodiment, after the connection assembly 110 connects the solenoid valve test module 230 to the terminal under test, the control module 140 outputs a third activation signal. The third drive unit 231 controls the second and third terminals of the third switch unit 232 to conduct according to the third activation signal. When the third switch unit 232 is on, the solenoid valve test module 230 tests the solenoid valve supply voltage output by the terminal under test and outputs a third test signal. The metering and detection module 130 outputs third metering data based on the third test signal. The control module 140 tests the solenoid valve supply voltage of the terminal under test based on the third metering data. The solenoid valve load unit 233 simulates the solenoid valve load. Based on the solenoid valve supply voltage and the simulated load, it can measure the current of the solenoid valve in the terminal under test.

[0042] Continue to refer Figure 2Specifically, the first switch unit 212 includes a first relay K1, the first drive unit 211 includes a first transistor Q1, a first diode D1, a first resistor R1 and a second resistor R2, a first end of the first resistor R1 is connected to the control end of the first drive unit 211, a second end of the first resistor R1 is connected to the first end of the second resistor R2 and the control end of the first transistor Q1, a second end of the second resistor R2 and the first end of the first transistor Q1 are grounded, a second end of the first transistor Q1 is connected to the first end of the first diode D1 and the first end of the coil of the first relay K1, a second end of the coil of the first relay K1 and the second end of the first diode D1 are connected to the first power supply end V1, a first end of the contact of the first relay K1 is connected to the first end of the first switch unit 212, a second end of the contact of the first relay K1 is connected to the second end of the first switch unit 212, a third end of the contact of the first relay K1 is connected to the third end of the first switch unit 212, and a fourth end of the contact of the first relay K1 is grounded.

[0043] In this embodiment of the present invention, after the connection component 110 connects the alarm test module 210 to the terminal under test, the first and second ends of the contacts of the first relay K1 are connected to the terminal under test. The second end of the contacts of the first relay K1 is connected to the alarm voltage, and the first end of the contacts of the first relay K1 is connected to the neutral line. When the control module 140 outputs a first start signal, the first transistor Q1 turns on in response to the first start signal, energizing the coil of the first relay K1 and closing the normally open contact of the first relay K1. Specifically, the second and third ends of the normally open contact of the first relay K1 are connected, and the first and fourth ends of the normally open contact of the first relay K1 are connected. The third end of the normally open contact of the first relay K1 outputs the alarm voltage, i.e., the first test signal. The metering and detection module 130 outputs first metering data based on the first test signal. The control module 140 performs an alarm voltage test on the terminal under test based on the first metering data.

[0044] Specifically, the second switch unit 222 includes a second relay K2, the second drive unit 221 includes a second transistor Q2, a second diode D2, a third resistor R3 and a fourth resistor R4, and the wind turbine load unit 223 includes a fifth resistor R5; a first end of the third resistor R3 is connected to the control end of the second drive unit 221, a second end of the third resistor R3 is connected to the first end of the fourth resistor R4 and the control end of the second transistor Q2, a second end of the fourth resistor R4 and the first end of the second transistor Q2 are grounded, and a second end of the second transistor Q2 is connected to the first end of the second diode D2 and the control end of the second relay K2. The first end of the coil, the second end of the coil of the second relay K2 and the second end of the second diode D2 are connected to the first power supply terminal V1, the first end of the contact of the second relay K2 is connected to the first end of the second switch unit 222, the second end of the contact of the second relay K2 is connected to the second end of the second switch unit 222, the third end of the contact of the second relay K2 is connected to the third end of the second switch unit 222, the fourth end of the contact of the second relay K2 is grounded, the first end of the fifth resistor R5 is connected to the first end of the second switch unit 222, and the second end of the fifth resistor R5 is connected to the second end of the second switch unit 222.

[0045] In this embodiment of the present invention, after the connection component 110 connects the wind turbine test module 220 to the terminal under test, the first and second ends of the second relay K2's contacts are connected to the terminal under test. The second end of the second relay K2's contacts is connected to the wind turbine supply voltage, and the first end of the second relay K2's contacts is connected to the neutral line. When the control module 140 outputs a second start signal, the second transistor Q2 turns on in response to the second start signal, energizing the coil of the second relay K2 and closing the normally open contact of the second relay K2. Specifically, the second and third ends of the normally open contact of the second relay K2 are connected, and the first and fourth ends of the normally open contact of the second relay K2 are connected. The third end of the normally open contact of the second relay K2 outputs the wind turbine supply voltage, i.e., the second test signal. The metering and detection module 130 outputs second metering data based on the second test signal. The control module 140 performs a wind turbine supply voltage test on the terminal under test based on the second metering data. Fan load unit 223 simulates the fan load. Fifth resistor R5 simulates the fan's internal resistance. Fifth resistor R5 can be a cement resistor. The internal resistance wire of a cement resistor is typically made of a material that is heat-resistant and can withstand high currents, allowing it to carry relatively high power. By simulating the fan's internal resistance, fifth resistor R5 enables current measurement of the fan under test.

[0046] Specifically, the third switch unit 232 includes a third relay K3, the third drive unit 231 includes a third transistor Q3, a third diode D3, a sixth resistor R6 and a seventh resistor R7, and the solenoid valve load unit 233 includes an eighth resistor R8; a first end of the sixth resistor R6 is connected to the control end of the third drive unit 231, a second end of the sixth resistor R6 is connected to the first end of the seventh resistor R7 and the control end of the third transistor Q3, a second end of the seventh resistor R7 and a first end of the third transistor Q3 are grounded, and a second end of the third transistor Q3 is connected to the first end of the third diode D3 and the control end of the third relay K3. The first end of the coil, the second end of the coil of the third relay K3 and the second end of the third diode D3 are connected to the first power supply terminal V1, the first end of the contact of the third relay K3 is connected to the first end of the third switch unit 232, the second end of the contact of the third relay K3 is connected to the second end of the third switch unit 232, the third end of the contact of the third relay K3 is connected to the third end of the third switch unit 232, the fourth end of the contact of the third relay K3 is grounded, the first end of the eighth resistor R8 is connected to the first end of the third switch unit 232, and the second end of the eighth resistor R8 is connected to the second end of the third switch unit 232.

[0047] In this embodiment of the present invention, after the connection assembly 110 connects the solenoid valve test module 230 to the terminal under test, the first and second ends of the third relay K3's contacts are connected to the terminal under test. The second end of the third relay K3's contacts is connected to the solenoid valve supply voltage, and the first end of the third relay K3's contacts is connected to the neutral line. When the control module 140 outputs a third start signal, the third transistor Q3 turns on in response to the third start signal, energizing the coil of the third relay K3 and closing the normally open contact of the third relay K3. Specifically, the second and third ends of the normally open contact of the third relay K3 are connected, and the first and fourth ends of the normally open contact of the third relay K3 are connected. The third end of the normally open contact of the third relay K3 outputs the solenoid valve supply voltage, i.e., the third test signal. The metering and detection module 130 outputs third metering data based on the third test signal. The control module 140 performs a blower supply voltage test on the terminal under test based on the third metering data. Solenoid valve load unit 233 simulates the solenoid valve load. The eighth resistor R8 simulates the solenoid valve's internal resistance. A cement resistor can be used. The internal resistance wire of a cement resistor is typically made of a high-temperature-resistant material that can withstand high currents and carry relatively high power. By simulating the solenoid valve's internal resistance, the current measurement function of the terminal solenoid valve under test is achieved.

[0048] Continue to refer Figure 2The metering and detection module 130 also includes a metering chip U1. The first test signal, the second test signal, or the third test signal is divided by the ninth resistor R9, the tenth resistor R10, the eleventh resistor R11, the twelfth resistor R12, the thirteenth resistor R13, and the fourteenth resistor R14, and then input to the pin VP of the metering chip U1. The metering chip U1 performs data calculation and conversion on the test signal and outputs the metering data, which is output to the control module 140 through the pin TX / SDO. The metering chip U1 also includes a pin RX / SDI for receiving the start signal output by the control module 140. The metering chip U1 also includes a pin SEL, a pin GND, and a pin VDD. The metering and detection module 130 also includes a fifteenth resistor R15, a sixteenth resistor R16, a seventeenth resistor R17, a first capacitor C1, a second capacitor C2, and a third capacitor C3.

[0049] Based on the above embodiment, the voltage regulating skid intelligent terminal testing device further includes a communication isolation module. Figure 3 is a circuit diagram of a communication isolation module provided by an embodiment of the present invention, such as Figure 3 As shown, the communication isolation module 310 is connected to the metering detection module 130 and the control module 140 , and the communication isolation module 310 is used to isolate the communication data transmitted between the metering detection module 130 and the control module 140 .

[0050] In an embodiment of the present invention, the communication isolation module 310 is a module that realizes electrical isolation on the communication line, which can block the direct electrical connection between different devices and circuits, avoid communication errors, equipment damage and other problems that may be caused by electrical interference, and ensure the safe and stable operation of the communication system.

[0051] Specifically, the communication isolation module 310 includes a first optocoupler OC1, a second optocoupler OC2, a fourth transistor Q4, and a fifth transistor Q5. The first end of the first optocoupler OC1 is connected to the first end of the fourth transistor Q4, the second end of the fourth transistor Q4 is grounded, the control end of the fourth transistor Q4 is connected to the pin TX / SDO of the metering chip U1 via a thirty-third resistor R33, the second end of the first optocoupler OC1 is connected to the second power supply terminal V2 via a thirty-fifth resistor R35, the third end of the first optocoupler OC1 is connected to the control module 140, and is connected to the third power supply terminal V3 via a thirty-sixth resistor R36, and the fourth end of the first optocoupler OC1 is grounded. A first end of the second optocoupler OC2 is connected to the first end of the fifth transistor Q5, a second end of the fifth transistor Q5 is grounded, a control end of the fifth transistor Q5 is connected to the control module 140 via a thirty-fourth resistor R34, a second end of the second optocoupler OC2 is connected to the third power supply terminal V3 via a thirty-seventh resistor R37, a third end of the second optocoupler OC2 is connected to the pin RX / SDI of the metering chip U1, and is connected to the second power supply terminal V2 via a thirty-eighth resistor R38, and a fourth end of the second optocoupler OC2 is grounded.

[0052] Based on the above embodiment, the control module 140 outputs a first start signal, a second start signal, and a third start signal, wherein the first start signal, the second start signal, and the third start signal are all low-level signals. The fifth transistor Q5 turns on according to the first start signal, the second start signal, or the third start signal, and the second optocoupler OC2 turns on after the fifth transistor Q5 turns on. The second optocoupler OC2 transmits the first start signal to the alarm test module, the second start signal to the fan test module, and the third start signal to the solenoid valve test module. The metering detection module 130 outputs first metering data according to the first test signal, the second metering data according to the second test signal, and the third metering data according to the third test signal. The first metering data, the second metering signal, and the third metering signal are low-level signals. The fourth transistor Q4 turns on according to the first metering data, the second metering signal, or the third metering signal, and the first optocoupler OC1 turns on after the fourth transistor Q4 turns on. The first optocoupler OC1 transmits the first metering data, the second metering signal, or the third metering signal to the control module 140.

[0053] Based on the above embodiment, the voltage regulating skid intelligent terminal testing device further includes a power supply module. Figure 4 is a circuit diagram of a power module provided by an embodiment of the present invention, such as Figure 4 As shown, the power module 410 is connected to the test module 120, the metering and detection module 130, and the control module 140. The power module 140 is used to supply power to the test module 120, the metering and detection module 130, and the control module 140. The power module 140 includes a first power supply unit 141 and a second power supply unit 142. The first power supply unit 141 is connected to the metering and detection module 130, and the second power supply unit 142 is connected to the test module 120 and the control module 140. The first power supply unit 141 is used to supply power to the metering and detection module 130, and the second power supply unit 142 is used to supply power to the test module 120 and the control module 140. The power module 410 is a module that provides power to each module of the voltage regulating skid intelligent terminal test device. The first power supply unit 141 is a high-voltage side power supply unit, and the second power supply unit 142 is a low-voltage side power supply unit.

[0054] Specifically, the first power supply unit 141 includes a first voltage conversion chip U2, a second voltage conversion chip U3, and an isolation chip U4. The first voltage conversion chip U2 is used to convert the input voltage signal. The isolation chip U4 is connected to the first voltage conversion chip U2 and isolates the input voltage signal for output. The second voltage conversion chip U3 is connected to the isolation chip U4 and converts the input voltage signal and outputs a second power supply V2. The second power supply unit 142 includes a third voltage conversion chip U5 and a fourth voltage conversion chip U6. The third voltage conversion chip U5 is used to convert the input voltage signal and output a first power supply V1. The fourth voltage conversion chip U6 is connected to the third voltage conversion chip U5 and converts the first power supply V1 and outputs a third power supply V3. The isolation chip U4 maintains a physical separation between the high-voltage and low-voltage power supplies, protecting low-voltage components from damage and extending the tooling life. Furthermore, the low-voltage side controls the high-voltage side's on / off state, ensuring maximum controllable and safe testing.

[0055] In an embodiment of the present invention, the first power supply unit further includes a first voltage regulator diode T1, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, and an eleventh capacitor C11. The first voltage conversion chip U2 performs a step-down conversion on the input voltage signal Vin, wherein the voltage signal Vin can be the voltage output by an alkaline battery. The first power supply V1 is 5V, and the first power supply V1 is transmitted to the second voltage conversion chip U3 after passing through the isolation chip U4. The second voltage conversion chip U3 steps down the input voltage signal and outputs a second power supply V2, wherein the voltage of the second power supply V2 is 3.3V. The first voltage conversion chip U2 includes pins Vin, GND, and Vout, the second voltage conversion chip U3 includes pins Vin, GND, and Vout, and the isolation chip U4 includes pins VIN, GND, V0, and 0V.

[0056] The second power supply unit also includes a first port P1, a second voltage regulator diode T2, a third voltage regulator diode T3, a twelfth capacitor C12, a thirteenth capacitor C13, a fourteenth capacitor C14, a fifteenth capacitor C15, a sixteenth capacitor C16, and a seventeenth capacitor C17. The first port P1 is connected to an alkaline battery, which has an output voltage of 6V. The 6V voltage is transmitted to the third voltage conversion chip U5 after passing through the second voltage regulator diode T2. The third voltage conversion chip U5 steps down the input voltage signal and outputs the first power supply V1. The fourth voltage conversion chip U6 steps down the input first power supply V1 and outputs the third power supply V3. The third voltage conversion chip U5 includes pins Vin, GND, and Vout. The fourth voltage conversion chip U6 includes pins Vin, GND, and Vout.

[0057] Based on the above embodiments, Figure 5 This is a circuit diagram of another voltage regulating skid intelligent terminal testing device provided by an embodiment of the present invention. Figure 5 As shown, the control module 140 includes a main control chip U7, and the voltage-regulating skid intelligent terminal testing device also includes an eighteenth resistor R18. The first end of the eighteenth resistor R18 is connected to pin PB8 of the main control chip U7, and the second end of the eighteenth resistor R18 is connected to the terminal under test via a connecting component 110. The main control chip U7 outputs a concentration control signal via pin PB8. The concentration alarm on the terminal under test sounds an alarm when the concentration control signal exceeds a preset value, thereby achieving concentration detection.

[0058] Based on the above embodiment, the main control chip U7 includes pin PB6. Pin PB6 of the main control chip U7 is connected to the terminal under test through the connecting component 110. Pin PB6 outputs a switching signal. The terminal under test performs corresponding operations according to the switching signal to realize switching detection.

[0059] Based on the above embodiment, the voltage-regulating skid intelligent terminal testing device further includes an RS485 communication circuit, which includes a communication chip U8, a fourth voltage-regulating diode T4, a fifth voltage-regulating diode T5, a sixth voltage-regulating diode T6, a seventh voltage-regulating diode T7, an eighth voltage-regulating diode T8, a nineteenth resistor R19, a twentieth resistor R20, a twenty-first resistor R21, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24, a twenty-fifth resistor R25, an eighteenth capacitor C18, a nineteenth capacitor C19, and a twentieth capacitor C20. The communication chip U8 includes pins R, RE, DE, D, VDD1, GND1, VDD2, GND2, A, and B. The first end of the nineteenth resistor R19 is connected to the connection component 110 via input terminal A to establish a connection with the terminal under test. The first end of the twentieth resistor R20 is connected to the connection component 110 via input terminal B to establish a connection with the terminal under test. Pin R of the communication chip U8 is connected to pin PB2 of the main control chip U7, pins RE and DE of the communication chip U8 are connected to pin PB1 of the main control chip U7, and pin D of the communication chip U8 is connected to pin PB3 of the main control chip U7. The connection node between the twenty-fourth resistor R24 and the twenty-fifth resistor R25 is connected to pin PA13 of the main control chip U7. The first end C of the twenty-fourth resistor R24 is connected to the 12V power supply terminal of the terminal under test through the connecting component 110. The 12V power supply is the DC power supply voltage provided to the devices participating in RS485 communication. The circuits and chips within these devices rely on 12V DC power to maintain operation, thereby realizing functions such as data acquisition, processing, and communication through the RS485 interface. The RS485 communication circuit connects the terminal under test and the main control chip, and connects the 12V power supply of the terminal under test to the main control chip. The R485 communication test and the 12V power supply test are realized through the communication results between the terminal under test and the main control chip, as well as the detection results of the 12V power supply by the main control chip.

[0060] In the embodiment of the present invention, the test device further includes indicator lights LED1-LED7 and buttons S1-S6. Figure 5The indicator light LED1 is connected to the pin PA15 of the main control chip U7 through the twenty-sixth resistor R26, the indicator light LED2 is connected to the pin PA1 of the main control chip U7 through the twenty-seventh resistor R27, the indicator light LED3 is connected to the pin PA3 of the main control chip U7 through the twenty-eighth resistor R28, the indicator light LED4 is connected to the pin PA5 of the main control chip U7 through the twenty-ninth resistor R29, the indicator light LED5 is connected to the pin PA7 of the main control chip U7 through the thirtieth resistor R30, the indicator light LED6 is connected to the pin PA9 of the main control chip U7 through the thirty-first resistor R31, and the indicator light LED7 is connected to the pin PA10 of the main control chip U7 through the thirty-second resistor R32. Button S1 is connected to pin PA14 of the main control chip U7, button S2 is connected to pin PA0 of the main control chip U7, button S3 is connected to pin PA2 of the main control chip U7, button S4 is connected to pin PA4 of the main control chip U7, button S5 is connected to pin PA6 of the main control chip U7, and button S6 is connected to pin PA8 of the main control chip U7.

[0061] In an embodiment of the present invention, the main control chip U7 further includes pins PC3, PC2, PC1, PC0, PD12, and NRST. Referring to the above embodiment, pins PC1, PC0, and PD12 output a first start signal, a second start signal, and a third start signal, respectively. Pins PC3 and PC2 are connected to the communication isolation module as a transmitting end and a receiving end, respectively. Pin NRST is connected to the first end of button S7, and the second end of button S7 is grounded. Button S7 is used to reset the main control chip U7. The test device reserves a reset button to facilitate the tester to restore the function of the test device in time after an unpredictable situation occurs, thereby improving production efficiency.

[0062] Button S1 is used to control the output of the first start signal, and indicator LED1 displays the test result of the alarm test module. Button S2 is used to control the output of the second start signal, and indicator LED2 displays the test result of the fan test module. Button S3 is used to control the output of the third start signal, and indicator LED3 displays the test result of the solenoid valve test module. Button S4 is used to control the output of the concentration control signal, and indicator LED4 displays the test result of the concentration test. Button S5 is used to control the output of the switching signal, and indicator LED5 displays the test result of the switching test. Button S6 is used to control the start of the R485 communication test and the 12V power supply test, and indicator LED6 and indicator LED7 display the test results of the communication test and the 12V power supply test respectively. Specifically, the indicator light is off when the corresponding test module has not been tested, the indicator light is on when the corresponding test module has passed the test, and the indicator light is flashing when the corresponding test module has failed the test.

[0063] In this embodiment of the present invention, the main control chip U7 uses the FM33LG048 model, which is used for communication testing, metering testing, switch control, human-computer interaction, analog conversion, and task control. The main control chip U7 has a main frequency of 48 MHz, and its running status and program have no redundant task calls. The RS485 communication circuit is converted into a serial port signal input to the main control chip U7 through the communication chip NIRS485. The metering chip communicates with the main control chip U7 through a communication isolation module. The alarm test module, fan test module, and solenoid valve test module each use three HFD4 / 5-S relays as switch units to control the three 220V input metering detection modules of the tested terminal, conveniently saving metering channels of the metering chip and hardware costs. The human-machine interface uses indicator lights and buttons, and a reserved serial port allows test task control by the host computer. The main control chip used is a minimum single-chip microcomputer system, and its serial port is convenient for debugging and reserved as a host computer communication interface. The human-computer interaction is a combination of buttons and indicator lights, which is more intuitive and convenient. The tooling adopts a plug-and-test design, and the testing process is extremely fast. After the personnel are familiar with it, a device can be tested within 2 minutes, which improves production efficiency.

[0064] The embodiment of the present invention also provides a test device, Figure 6 This is an assembly diagram of a test device provided by an embodiment of the present invention, such as Figure 6 As shown, the lower left is a top view, the lower right is a left view, and the upper left is a front view. It includes a circuit board 510, a structural component 520, a button and a voltage-regulating pry intelligent terminal test device 100, and the voltage-regulating pry intelligent terminal test device 100 is integrated on the circuit board 510 (not shown in the figure). The structural component 520 includes an assembly hole B, and the terminal E under test includes a screw hole C. The structural component 520 is used to align the assembly hole B with the screw hole C to assemble and position the terminal under test and the test device, and also has a protective function. The button is set on the circuit board 510 (not shown in the figure), and the button is connected to the control module 140 in the voltage-regulating pry intelligent terminal test device 100. In addition, the test button and indicator light on the circuit board are exposed to facilitate testing. This design is more intuitive and efficient while being low-cost. The test equipment 10 in this embodiment includes the voltage-regulating pry intelligent terminal test device 100 in any of the above embodiments, and has the beneficial effects of any of the above embodiments, which will not be repeated here.

[0065] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0066] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A voltage regulating skid intelligent terminal testing device, characterized in that: It includes a connection component, at least one test module, a measurement and detection module and a control module; The test module includes a switch unit and a drive unit, the switch unit includes a first end, a second end and a third end; the connection component can be configured to connect or disconnect the first end and the second end of the switch unit with the port of the terminal under test; The driving unit is connected to the control module and the switch unit, the control module is used to control the connection or disconnection between the second end and the third end of the switch unit through the driving unit, the third end of the switch unit is connected to the measurement detection module, and the measurement detection module is used to output measurement data; At least one of the test modules further comprises a load unit connected to the first end and the second end of the switch unit; The control module is also connected to the measurement detection module, and the control module is further used to test the terminal under test according to the measurement data.

2. The voltage regulating skid intelligent terminal testing device according to claim 1 is characterized in that: The at least one test module includes an alarm test module, which includes a first drive unit and a first switch unit. The control end of the first drive unit is connected to the control module, the output end of the first drive unit is connected to the control end of the first switch unit, the first end and the second end of the first switch unit are connected to the connection component, and the third end of the first switch unit is connected to the measurement and detection module. The control module is used to output a first start signal, and the first drive unit is used to control the second end and the third end of the first switch unit to be conductive according to the first start signal. The alarm test module is used to test the alarm voltage output by the terminal under test and output a first test signal when the first switch unit is conductive. The measurement and detection module is used to output first measurement data according to the first test signal. And / or, the at least one test module includes a fan test module, the fan test module includes a second drive unit, a second switch unit and a fan load unit, the control end of the second drive unit is connected to the control module, the output end of the second drive unit is connected to the control end of the second switch unit, the first end and the second end of the second switch unit are connected to the connection component, and the third end of the second switch unit is connected to the metering and detection module, the control module is used to output a second start signal, the second drive unit is used to control the second end and the third end of the second switch unit to be conductive according to the second start signal, the fan test module is used to test the fan power supply voltage output by the tested terminal when the second switch unit is conductive and output a second test signal, the fan load unit is connected between the first end and the second end of the second switch unit, the fan load unit is used to adjust the second test signal, and the metering and detection module is used to output second metering data according to the second test signal; And / or, the at least one test module includes a solenoid valve test module, the solenoid valve test module includes a third drive unit, a third switch unit and a solenoid valve load unit, the control end of the third drive unit is connected to the control module, the output end of the third drive unit is connected to the control end of the third switch unit, the first end and the second end of the third switch unit are connected to the connection component, the third end of the third switch unit is connected to the metering detection module, the control module is used to output a third start signal, the third drive unit is used to control the second end and the third end of the third switch unit to be turned on according to the third start signal, the solenoid valve test module is used to test the solenoid valve supply voltage output by the tested terminal when the third switch unit is turned on, and output a third test signal, the solenoid valve load unit is connected between the first end and the second end of the third switch unit, the solenoid valve load unit is used to adjust the third test signal, and the metering detection module is used to output third metering data according to the third test signal.

3. The voltage regulating skid intelligent terminal testing device according to claim 2, characterized in that: The first switch unit includes a first relay, and the first drive unit includes a first transistor, a first diode, a first resistor, and a second resistor. The first end of the first resistor is connected to the control end of the first drive unit, the second end of the first resistor is connected to the first end of the second resistor and the control end of the first transistor, the second end of the second resistor and the first end of the first transistor are grounded, the second end of the first transistor is connected to the first end of the first diode and the first end of the coil of the first relay, the second end of the coil of the first relay and the second end of the first diode are connected to the first power supply end, the first end of the contact of the first relay is connected to the first end of the first switch unit, the second end of the contact of the first relay is connected to the second end of the first switch unit, the third end of the contact of the first relay is connected to the third end of the first switch unit, and the fourth end of the contact of the first relay is grounded.

4. The voltage regulating skid intelligent terminal testing device according to claim 2, characterized in that: The second switch unit includes a second relay, the second drive unit includes a second transistor, a second diode, a third resistor and a fourth resistor, and the wind turbine load unit includes a fifth resistor; the first end of the third resistor is connected to the control end of the second drive unit, the second end of the third resistor is connected to the first end of the fourth resistor and the control end of the second transistor, the second end of the fourth resistor and the first end of the second transistor are grounded, the second end of the second transistor is connected to the first end of the second diode and the first end of the coil of the second relay, the second end of the coil of the second relay and the second end of the second diode are connected to the first power supply end, the first end of the contact of the second relay is connected to the first end of the second switch unit, the second end of the contact of the second relay is connected to the second end of the second switch unit, the third end of the contact of the second relay is connected to the third end of the second switch unit, and the fourth end of the contact of the second relay is grounded, the first end of the fifth resistor is connected to the first end of the second switch unit, and the second end of the fifth resistor is connected to the second end of the second switch unit.

5. The voltage regulating skid intelligent terminal testing device according to claim 2, characterized in that: The third switch unit includes a third relay, the third drive unit includes a third transistor, a third diode, a sixth resistor and a seventh resistor, and the solenoid valve load unit includes an eighth resistor; the first end of the sixth resistor is connected to the control end of the third drive unit, the second end of the sixth resistor is connected to the first end of the seventh resistor and the control end of the third transistor, the second end of the seventh resistor and the first end of the third transistor are grounded, the second end of the third transistor is connected to the first end of the third diode and the first end of the coil of the third relay, the second end of the coil of the third relay and the second end of the third diode are connected to the first power supply end, the first end of the contact of the third relay is connected to the first end of the third switch unit, the second end of the contact of the third relay is connected to the second end of the third switch unit, the third end of the contact of the third relay is connected to the third end of the third switch unit, and the fourth end of the contact of the third relay is grounded. The first end of the eighth resistor is connected to the first end of the third switch unit, and the second end of the eighth resistor is connected to the second end of the third switch unit.

6. The voltage regulating skid intelligent terminal testing device according to claim 1, characterized in that: The voltage regulating skid intelligent terminal testing device further includes a communication isolation module, which is connected to the metering detection module and the control module, and is used to isolate and transmit communication data between the metering detection module and the control module.

7. The voltage regulating skid intelligent terminal testing device according to claim 6, characterized in that: The communication isolation module includes a first optocoupler, a second optocoupler, a fourth transistor and a fifth transistor. The first end of the first optocoupler is connected to the first end of the fourth transistor, the second end of the fourth transistor is grounded, the control end of the fourth transistor is connected to the measurement and detection module, the second end of the first optocoupler is connected to the second power supply end, the third end of the first optocoupler is connected to the control module and the third power supply end, the fourth end of the first optocoupler is grounded, the first end of the second optocoupler is connected to the first end of the fifth transistor, the second end of the fifth transistor is grounded, the control end of the fifth transistor is connected to the control module, the second end of the second optocoupler is connected to the third power supply end, the third end of the second optocoupler is connected to the measurement and detection module and the second power supply end, and the fourth end of the second optocoupler is grounded.

8. The voltage regulating skid intelligent terminal testing device according to claim 1, characterized in that: The voltage regulating skid intelligent terminal testing device further includes a power supply module, which is connected to the testing module, the metering and detection module, and the control module, and is used to supply power to the testing module, the metering and detection module, and the control module; The power supply module includes a first power supply unit and a second power supply unit. The first power supply unit is connected to the metering and detection module, and the second power supply unit is connected to the test module and the control module. The first power supply unit is used to supply power to the metering and detection module, and the second power supply unit is used to supply power to the test module and the control module.

9. The voltage regulating skid intelligent terminal testing device according to claim 8, characterized in that: The first power supply unit includes a first voltage conversion chip, a second voltage conversion chip and an isolation chip, the first voltage conversion chip is used to perform voltage conversion on the input voltage signal, the isolation chip is connected to the first voltage conversion chip, the isolation chip is used to isolate and output the input voltage signal, the second voltage conversion chip is connected to the isolation chip, the second voltage conversion chip is used to perform voltage conversion on the input voltage signal and output a second power supply; The second power supply unit includes a third voltage conversion chip and a fourth voltage conversion chip. The third voltage conversion chip is used to convert the input voltage signal and output the first power supply. The fourth voltage conversion chip is connected to the third voltage conversion chip. The fourth voltage conversion chip is used to convert the voltage of the first power supply and output the third power supply.

10. A test device, characterized in that: The invention comprises a circuit board, a structural component and a voltage-regulating pry intelligent terminal testing device according to any one of claims 1 to 9, wherein the voltage-regulating pry intelligent terminal testing device is integrated on the circuit board, the structural component includes an assembly hole, and the terminal under test includes a screw hole. The structural component is used to align the assembly hole with the screw hole to assemble and position the terminal under test and the testing device.

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