High-speed on-off switch switching action time measuring device and method

Abstract

The invention relates to a time measurement device and method, in particular to a high-speed on-off switch switching action time measurement device and method, which comprises a signal conditioning module, a time acquisition module and a state display module, the signal conditioning module is connected with the high-speed on-off switch; the program control information module is connected with the time acquisition module, the configuration information module and the pre-triggering module; the logic judgment module is connected with the time acquisition module, the timing counter, the pre-triggering module, the configuration information module and the signal conditioning module; the time acquisition module is connected with the timing counter; the state display module comprises a second level matching module connected with the logic judgment module, and an indicating lamp LED1 driving circuit and an indicating lamp LED2 driving circuit which are connected with the second level matching module; the indicating lamp LED1 driving circuit and the indicating lamp LED2 driving circuit are respectively provided with an indicating lamp LED1 and an indicating lamp LED2. According to the invention, participation of multiple standard instruments is not needed, system building before testing is not needed, only the input and output ends of the switch need to be connected for testing, and the testing efficiency is high.

Description

Technical Field

[0001] The invention relates to a timing device and method, and in particular to a timing device and method for a high-speed on-off switch switching action. Background Art

[0002] A high-speed on-off switch is a device or equipment that can switch on and off in a very short time (milliseconds or less). It is widely used in many industries such as aviation, aerospace, rail transportation, electricity, metallurgy and mining due to its fast, stable and reliable characteristics. The response speed and stability of the switch, especially the action time during its opening and closing process, are key parameters for measuring the performance of high-speed on-off switches. This parameter is of great significance in protecting electrical equipment, improving system stability, optimizing energy utilization, improving equipment performance and meeting special needs.

[0003] However, the current test of high-speed on-off switch action time mainly relies on a system built with related instrument tools such as oscilloscopes, signal generators, and multimeters. During the test, the oscilloscope is connected to the output of the switch, and the signal generator is connected to the input. The oscilloscope captures the waveform during the switch closing and opening process, and then analyzes and calculates the switch action time. Since this timing method involves many standard instruments, the test preparation time is long, which seriously affects the test efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the technical problem that the existing timing method involves too many standard instruments, resulting in long test preparation time and seriously affecting the test efficiency, and to provide a high-speed on-off switch switching action timing device and method.

[0005] To solve the above technical problems, the technical solutions provided by the present invention are as follows: A high-speed on-off switch switching action timing device comprises a signal conditioning module, a time acquisition module and a status display module connected in sequence; The signal conditioning module is connected to the high-speed on-off switch through an excitation signal output interface, a switch signal input interface, and a trigger signal input interface; The time acquisition module includes an MCU single chip, and a program control information module, a configuration information module, a pre-trigger module, a time acquisition module, a timing counter and a logic judgment module arranged on the MCU single chip; The program-controlled information module is connected to the time acquisition module, the configuration information module, and the pre-trigger module; The logic judgment module is connected to the acquisition time module, the timing counter, the pre-trigger module, the configuration information module, and the signal conditioning module; the acquisition time module is connected to the timing counter; The state display module includes a second level matching module connected to the logic judgment module, and an indicator light LED1 driving circuit and an indicator light LED2 driving circuit connected to the second level matching module; The indicator light LED1 driving circuit and the indicator light LED2 driving circuit are respectively provided with an indicator light LED1 and an indicator light LED2.

[0006] Furthermore, the logic judgment module includes an XOR gate logic circuit, an XNOR gate logic circuit and an AND gate logic circuit; The signal conditioning module is connected to the XOR gate logic circuit and the XOR gate logic circuit; The configuration information module is connected to an XOR gate logic circuit and an XOR gate logic circuit; The second level matching module is connected to the XNOR gate logic circuit and the AND gate logic circuit; The pre-trigger module and the first level matching module are connected to the AND gate logic circuit; The timing counter is connected with the XOR gate logic circuit and the AND gate logic circuit.

[0007] Further, the signal conditioning module includes a low-power ACDC power supply, an isolation chip, a first level matching module and an isolation chip power supply; The low-power ACDC power supply is connected to the excitation signal output interface through a current limiting resistor R1; The isolation chip is connected to the isolation chip power supply, the switch signal input interface, the XOR gate logic circuit, and the XOR gate logic circuit; The first level matching module is connected to the trigger signal input interface and the AND gate logic circuit.

[0008] Furthermore, the indicator LED1 driving circuit includes a transistor Q1 and a current limiting resistor R2, the first pin of the transistor Q1 is connected to the second level matching module, the second pin of the transistor Q1 is connected to one end of the current limiting resistor R2, and the third pin of the transistor Q1 is grounded; The other end of the current limiting resistor R2 is connected to the indicator light LED1; The indicator light LED2 driving circuit comprises a transistor Q2 and a current limiting resistor R3, wherein a first pin of the transistor Q2 is connected to a second level matching module through an inverter, a second pin of the transistor Q2 is connected to one end of the current limiting resistor R3, and a third pin of the transistor Q2 is grounded; The other end of the current limiting resistor R3 is connected to the indicator light LED2; the indicator light LED1 and the indicator light LED2 are both connected to the indicator light power supply.

[0009] A method for measuring the timing of a high-speed on-off switch switching action comprises the following steps: 1) Configure the "on" or "off" status information in the configuration information module through the program-controlled information module; 2) The signal conditioning module inputs the excitation signal to the high-speed on-off switch through the excitation signal output interface. The high-speed on-off switch responds to the excitation signal and generates corresponding switch signals and trigger signals. 3) The logic judgment module receives the switch signal and the "on" or "off" status information and performs logic operations to generate logic control signals; If the switch signal is consistent with the "on" or "off" status information, the indicator LED1 lights up and continues to step 4); If the switch signal and the "on" or "off" status information are inconsistent, the indicator LED2 lights up and step 1 is executed again); 4) Sending the pre-trigger signal to the pre-trigger module through the program-controlled information module; 5) The logic judgment module receives the pre-trigger signal, trigger signal and logic control signal, obtains the start signal after logic operation, and the timing counter executes the start signal to start and start timing; 6) When the switching action of the high-speed on-off switch is completed, the high-speed on-off switch generates a new switching signal; The logic judgment module receives the new switch signal and the "on" or "off" state information, obtains the stop signal after the logic operation, and the timing counter executes the stop signal to stop and end the timing; 7) The time acquisition module calculates the time of the on-off switching action according to the number of clock pulses counted between the start and stop of the timing counter, and completes the timing of the high-speed on-off switching action.

[0010] Furthermore, step 1) is specifically as follows: Sending an "on" or "off" command to the configuration information module connected to the program-controlled information module through the host computer; Alternatively, a status switch connected to the MCU is used as an input of an "on" or "off" instruction in the configuration information module; thereby completing the configuration of the "on" or "off" status information in the configuration information module.

[0011] Furthermore, step 3) is specifically as follows: The XOR logic circuit in the logic judgment module receives the switch signal and the "on" or "off" state information and performs XOR logic operation to generate a logic control signal; If the switch signal is consistent with the "on" or "off" status information, the indicator LED1 drive circuit executes the logic control signal and lights up the indicator LED1, and then proceeds to step 4); If the switch signal and the "on" or "off" status information are inconsistent, the indicator LED2 drive circuit executes the logic control signal and lights up the indicator LED2, and re-executes step 1).

[0012] Furthermore, step 5) is specifically as follows: The AND gate logic circuit in the logic judgment module receives the pre-trigger signal, the trigger signal and the logic control signal, and obtains the start signal after the AND gate logic operation; The timing counter executes the start signal, starts and begins timing.

[0013] Furthermore, step 6) is specifically as follows: When the switching action of the high-speed on-off switch is completed, the high-speed on-off switch generates a new switching signal; The XOR gate logic circuit of the logic judgment module receives the new switch signal and the "on" or "off" state information, and obtains the stop signal after the XOR gate logic operation; The timing counter executes the stop signal to stop and end the timing.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a time testing device and method for the switching action of a high-speed on-off switch. The time testing device adopts an integrated design, integrating signal generation, signal recognition, switch state detection, and a time testing function for automatically completing switch on-off switching based on switch state changes. The device is easy to operate, and manual operation is limited to connecting the interface of the device with the input and output ends of the high-speed on-off switch to be tested; test data does not need to be read manually, thereby greatly improving the consistency and accuracy of the test results; moreover, the device does not require the participation of multiple standard instruments, nor does it require system construction before testing, which significantly improves the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2 Flow chart of the timing method in an embodiment of the present invention. DETAILED DESCRIPTION

[0016] The technical solutions in the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0017] Example 1

[0018] like Figure 1As shown, a high-speed on-off switch switching action timing device comprises a signal conditioning module, a time acquisition module and a status display module connected in sequence; The signal conditioning module is connected to the high-speed on-off switch through the excitation signal output interface, the switch signal input interface, and the trigger signal input interface; The time acquisition module includes an MCU single chip, and a program control information module, a configuration information module, a pre-trigger module, a time acquisition module, a timing counter and a logic judgment module arranged on the MCU single chip; The program-controlled information module is connected with the time acquisition module, the configuration information module and the pre-trigger module; The logic judgment module is connected with the time acquisition module, the timing counter, the pre-trigger module, the configuration information module, and the signal conditioning module; the time acquisition module is connected with the timing counter; The status display module includes a second level matching module connected to the logic judgment module, and an indicator light LED1 driving circuit and an indicator light LED2 driving circuit connected to the second level matching module; The indicator light LED1 driving circuit and the indicator light LED2 driving circuit are respectively provided with an indicator light LED1 and an indicator light LED2.

[0019] The logic judgment module includes an XOR gate logic circuit, an XNOR gate logic circuit and an AND gate logic circuit; The signal conditioning module is connected with the XOR gate logic circuit and the XOR gate logic circuit; The configuration information module is connected to the XOR gate logic circuit and the XOR gate logic circuit; The second level matching module is connected to the XNOR gate logic circuit and the AND gate logic circuit; The pre-trigger module and the first level matching module are connected to the AND gate logic circuit; The timing counter is connected with the XOR gate logic circuit and the AND gate logic circuit.

[0020] The signal conditioning module includes a low-power ACDC power supply, an isolation chip, a first level matching module and an isolation chip power supply; The low-power ACDC power supply is connected to the excitation signal output interface through the current limiting resistor R1; The isolation chip is connected to the isolation chip power supply, the switch signal input interface, the XOR gate logic circuit, and the XOR gate logic circuit; The first level matching module is connected to the trigger signal input interface and the AND gate logic circuit.

[0021] The indicator LED1 driving circuit includes a transistor Q1 and a current limiting resistor R2, wherein the first pin of the transistor Q1 is connected to the second level matching module, the second pin of the transistor Q1 is connected to one end of the current limiting resistor R2, and the third pin of the transistor Q1 is grounded; The other end of the current limiting resistor R2 is connected to the indicator LED1; The indicator LED2 driving circuit includes a transistor Q2 and a current limiting resistor R3, wherein the first pin of the transistor Q2 is connected to the second level matching module through an inverter, the second pin of the transistor Q2 is connected to one end of the current limiting resistor R3, and the third pin of the transistor Q2 is grounded; The other end of the current limiting resistor R3 is connected to the indicator light LED2; the indicator light LED1 and the indicator light LED2 are both connected to the indicator light power supply.

[0022] like Figure 2 As shown, the timing method of the above-mentioned high-speed on-off switch switching action timing device is specifically as follows: 1) Sending an "on" or "off" command to the configuration information module connected to it through the program-controlled information module through the host computer, thereby completing the configuration of the "on" or "off" status information in the configuration information module; The signal conditioning module inputs an excitation signal to the high-speed on-off switch through the excitation signal output interface, and the high-speed on-off switch responds to the excitation signal and generates a corresponding switch signal and a trigger signal; 2) The XOR logic circuit in the logic judgment module receives the switch signal and the "on" or "off" state information and performs XOR logic operation to generate a logic control signal; If the switch signal is consistent with the "on" or "off" status information, the indicator LED1 driving circuit executes the logic control signal and lights up the indicator LED1, and continues to step 3); If the switch signal and the "on" or "off" status information are inconsistent, the indicator LED2 drive circuit executes the logic control signal and lights up the indicator LED2, and re-executes step 1); 3) Sending the pre-trigger signal to the pre-trigger module through the program-controlled information module; 4) The AND gate logic circuit in the logic judgment module receives the pre-trigger signal, the trigger signal and the logic control signal, and obtains the start signal after the AND gate logic operation; The timing counter executes the start signal, starts and begins timing; 5) When the switching action of the high-speed on-off switch is completed, the high-speed on-off switch generates a new switching signal; The XOR gate logic circuit of the logic judgment module receives the new switch signal and the "on" or "off" state information, and obtains the stop signal after the XOR gate logic operation; The timing counter executes the stop signal to stop and end the timing; 6) The time acquisition module calculates the time of the on-off switching action according to the number of clock pulses counted between the start and stop of the timing counter, and completes the timing of the high-speed on-off switching action.

[0023] In this embodiment, the specific signal processing process of the high-speed on-off switch switching action measurement is as follows: (1) Configure "on" or "off" information: Send an "on" or "off" command to the program-controlled information module in the time acquisition module on the human-computer interaction interface of the host computer, thereby completing the configuration of the "on" or "off" status information in the configuration information module; the configuration result is reflected by the indicator LED1 and indicator LED2 of the status display module; (2) Determine the consistency between the switch signal and the “on” or “off” status information: After receiving the switch signal and the "on" or "off" status information, the logic judgment module performs the following logic operations: After the program-controlled information module receives the "on" status information, the program-controlled information module outputs a high-level signal , the configuration information module receives After the signal is judged as a high level state and a high level signal is output When the high-speed on-off switch is not in action, the switch output terminal is connected to the interface. When the high-speed on-off switch is "on", a high-level signal is output through the isolation chip. , at this time the signal and Perform the same or logical operation , is true, then the XOR gate logic circuit outputs a high level signal , the second level matching module of the status display module receives a high level signal Output high level , thereby lighting up the indicator light LED1, proving that the high-speed on-off switch is currently in the "on" state, that is, the switch signal is consistent with the "on" state information.

[0024] Similarly, when the high-speed on-off switch is not in action, the switch output terminal is connected to the interface and when the high-speed on-off switch is "off", a low-level signal is output through the isolation chip. , at this time the signal and Perform the same or logical operation , is false, then the XOR gate logic circuit outputs a low level signal , the second level matching module of the status display module receives a low level signal Output low level , thereby lighting up the indicator light LED2, proving that the high-speed on-off switch is currently in the "off" state, that is, the switch signal is inconsistent with the "on" state information.

[0025] After the program-controlled information module receives the "off" status information, the program-controlled information module outputs a low-level signal , the configuration information module receives After the signal is judged as a low level state and a low level signal is output When the high-speed on-off switch is not in action, the switch output terminal is connected to the interface. When the high-speed on-off switch is "on", a high-level signal is output through the isolation chip. , at this time the signal and Perform the same or logical operation , is false, then the XOR gate logic circuit outputs a low level signal , the second level matching module of the status display module receives a low level signal Output low level , thereby lighting up the indicator light LED2, proving that the high-speed on-off switch is currently in the "on" state, that is, the switch signal is inconsistent with the "off" state information.

[0026] Similarly, when the high-speed on-off switch is not in action, the switch output terminal is connected to the interface and when the high-speed on-off switch is "off", a low-level signal is output through the isolation chip. , at this time the signal and Perform the same or logical operation , is true, then the XOR gate logic circuit outputs a high level signal , the second level matching module of the status display module receives a high level signal Will output high level Thereby, the indicator light LED1 is lit, indicating that the high-speed on-off switch is currently in the "off" state, that is, the switch signal is consistent with the "off" state information.

[0027] (3) When the "on" or "off" state (switch signal) of the high-speed on-off switch under test is consistent with the configured "on" or "off" state information, a pre-trigger signal is sent to the pre-trigger module through the program-controlled information module via the human-machine interaction interface of the host computer, or a pre-trigger signal is sent to the pre-trigger module through the trigger switch on the MCU microcontroller; Program-controlled information module output signal , the pre-trigger module receives the signal After generating high level At this time, prepare for the upcoming switch action switching time test and wait for the arrival of the trigger signal; by designing a pre-trigger mechanism, it is possible to prevent the timing counter from starting due to external interference at the trigger signal input interface; (4) The trigger signal of the high-speed on-off switch is matched by the first level matching module and then outputs a high level ; The output signal of the pre-trigger module is high level , and the signal output by the OR gate logic circuit is true, the three signals are ANDed by logic operation. , the result is true, the timing counter receives the signal If it is in true state, the timing counter will be started; (5) When the high-speed on-off switch action is switched, the input interface of the switch output receives the change of the excitation signal. There are two types of changes in the excitation signal: The first switch changes from "off" to "on", and the signal connected to the interface at the input end of the device switch will change from the original low level to a high level after passing through the isolation chip. This signal is recorded as , at this time the signal And the low level signal output by the configuration information module After XOR logic operation, the signal is true, that is , the timing counter stops receiving the signal When the timer is in the true state, the timer counter stops running. At this time, the timer counter completes the timing work, and the signal And the high level signal output by the configuration information module After the exclusive OR logic operation, the signal is false, the indicator light of the status display module switches from indicator light LED1 to indicator light LED2; The second is that the switch changes from "on" to "off". The signal connected to the interface at the input end of the device switch will change from the original high level to a low level after passing through the isolation chip. This signal is recorded as , at this time the signal And the high level signal output by the configuration information module After XOR logic operation, the signal is true, that is , the timing counter stops receiving the signal When the timer is in the true state, the timer counter stops running. At this time, the timer counter completes the timing work, and the signal And the high level signal output by the configuration information module After the exclusive OR logic operation, the signal is false, the indicator light of the status display module switches from indicator light LED1 to indicator light LED2; Steps (4) and (5) are both about controlling the timing counter. Currently, the timing counter clocks of common MCU single-chip microcomputers have reached the 100-megahertz level, and the test accuracy can reach 100 nanoseconds. In addition, the timing counter clocks of some high-end MCU single-chip microcomputers can reach the gigahertz level. The test accuracy of this method can reach the nanosecond level. (6) The test time value is sent to the human-computer interaction interface of the host computer through the program-controlled information module: The acquisition time module calculates the time of the on-off switching action according to the number of clock pulses counted between the start and stop of the timing counter, stores the time of the on-off switching action in the register and transmits it through the bus The information is transmitted to the program-controlled information module, and the program-controlled information module sends the time of the on-off switching action to the human-computer interaction interface of the host computer for display through remote communication.

[0028] Example 2

[0029] Compared with Example 1, the difference between Example 2 is that step 1) is: using the status switch connected to the MCU microcontroller as the input of the "on" or "off" instruction in the configuration information module, thereby completing the configuration of the "on" or "off" status information in the configuration information module.

[0030] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A high-speed on-off switch switching action timing device, characterized in that: It includes a signal conditioning module, a time acquisition module and a status display module which are connected in sequence; The signal conditioning module is connected to the high-speed on-off switch through an excitation signal output interface, a switch signal input interface, and a trigger signal input interface; The time acquisition module includes an MCU single chip, and a program control information module, a configuration information module, a pre-trigger module, a time acquisition module, a timing counter and a logic judgment module arranged on the MCU single chip; The program-controlled information module is connected to the time acquisition module, the configuration information module, and the pre-trigger module; The logic judgment module is connected to the acquisition time module, the timing counter, the pre-trigger module, the configuration information module, and the signal conditioning module; the acquisition time module is connected to the timing counter; The state display module includes a second level matching module connected to the logic judgment module, and an indicator light LED1 driving circuit and an indicator light LED2 driving circuit connected to the second level matching module; The indicator light LED1 driving circuit and the indicator light LED2 driving circuit are respectively provided with an indicator light LED1 and an indicator light LED2.

2. The high-speed on-off switch switching action timing device according to claim 1, characterized in that: The logic judgment module includes an XOR gate logic circuit, an XNOR gate logic circuit and an AND gate logic circuit; The signal conditioning module is connected to the XOR gate logic circuit and the XOR gate logic circuit; The configuration information module is connected to an XOR gate logic circuit and an XOR gate logic circuit; The second level matching module is connected to the XNOR gate logic circuit and the AND gate logic circuit; The pre-trigger module and the first level matching module are connected to the AND gate logic circuit; The timing counter is connected with the XOR gate logic circuit and the AND gate logic circuit.

3. The high-speed on-off switch switching action timing device according to claim 2, characterized in that: The signal conditioning module includes a low-power ACDC power supply, an isolation chip, a first level matching module and an isolation chip power supply; The low-power ACDC power supply is connected to the excitation signal output interface through a current limiting resistor R1; The isolation chip is connected to the isolation chip power supply, the switch signal input interface, the XOR gate logic circuit, and the XOR gate logic circuit; The first level matching module is connected to the trigger signal input interface and the AND gate logic circuit.

4. The high-speed on-off switch switching action timing device according to claim 3 is characterized in that: The indicator light LED1 driving circuit comprises a transistor Q1 and a current limiting resistor R2, wherein a first pin of the transistor Q1 is connected to a second level matching module, a second pin of the transistor Q1 is connected to one end of the current limiting resistor R2, and a third pin of the transistor Q1 is grounded; The other end of the current limiting resistor R2 is connected to the indicator light LED1; The indicator light LED2 driving circuit comprises a transistor Q2 and a current limiting resistor R3, wherein a first pin of the transistor Q2 is connected to a second level matching module through an inverter, a second pin of the transistor Q2 is connected to one end of the current limiting resistor R3, and a third pin of the transistor Q2 is grounded; The other end of the current limiting resistor R3 is connected to the indicator light LED2; the indicator light LED1 and the indicator light LED2 are both connected to the indicator light power supply.

5. A method for measuring the timing of a high-speed on-off switch switching action, characterized in that: The steps include: 1) Configure the "on" or "off" status information in the configuration information module through the program-controlled information module; 2) The signal conditioning module inputs the excitation signal to the high-speed on-off switch through the excitation signal output interface. The high-speed on-off switch responds to the excitation signal and generates corresponding switch signals and trigger signals. 3) The logic judgment module receives the switch signal and the "on" or "off" status information and performs logic operations to generate a logic control signal; If the switch signal is consistent with the "on" or "off" status information, the indicator LED1 lights up and continues to step 4); If the switch signal is inconsistent with the "on" or "off" status information, the indicator LED2 will light up and step 1 will be executed again); 4) Sending the pre-trigger signal to the pre-trigger module through the program-controlled information module; 5) The logic judgment module receives the pre-trigger signal, trigger signal and logic control signal, obtains the start signal after logic operation, and the timing counter executes the start signal to start and start timing; 6) When the switching action of the high-speed on-off switch is completed, the high-speed on-off switch generates a new switching signal; The logic judgment module receives the new switch signal and the "on" or "off" status information, obtains the stop signal after the logic operation, and the timing counter executes the stop signal to stop and end the timing; 7) The time acquisition module calculates the time of the on-off switching action according to the number of clock pulses counted between the start and stop of the timing counter, and completes the timing of the high-speed on-off switching action.

6. The high-speed on-off switch switching action timing method according to claim 5, characterized in that: Step 1) is as follows: Sending an "on" or "off" command to the configuration information module connected to the program-controlled information module through the host computer; Alternatively, a status switch connected to the MCU is used as an input of an "on" or "off" instruction in the configuration information module; thereby completing the configuration of the "on" or "off" status information in the configuration information module.

7. The high-speed on-off switch switching action timing method according to claim 5, characterized in that: Step 3) is as follows: The XOR logic circuit in the logic judgment module receives the switch signal and the "on" or "off" state information and performs XOR logic operation to generate a logic control signal; If the switch signal is consistent with the "on" or "off" status information, the indicator LED1 drive circuit executes the logic control signal and lights up the indicator LED1, and continues to step 4); If the switch signal and the "on" or "off" status information are inconsistent, the indicator LED2 drive circuit executes the logic control signal and lights up the indicator LED2, and re-executes step 1).

8. The high-speed on-off switch switching action timing method according to claim 5, characterized in that: Step 5) is as follows: The AND gate logic circuit in the logic judgment module receives the pre-trigger signal, the trigger signal and the logic control signal, and obtains the start signal after the AND gate logic operation; The timing counter executes the start signal, starts and begins timing.

9. The high-speed on-off switch switching action timing method according to claim 5, characterized in that: Step 6) is as follows: When the switching action of the high-speed on-off switch is completed, the high-speed on-off switch generates a new switching signal; The XOR gate logic circuit of the logic judgment module receives the new switch signal and the "on" or "off" state information, and obtains the stop signal after the XOR gate logic operation; The timing counter executes the stop signal to stop and end the timing.

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