Reactor protection channel test switchboard component testing apparatus, system, and method

Abstract

The present application relates to a reactor protection channel test switchboard piece testing device, system and method, comprising a main interface unit, a switch unit, a control unit, a communication unit and a measurement unit; the main interface unit is connected with the test switchboard piece; the communication unit is connected with the control unit, for the control unit to communicate with the host computer; the control unit is connected with the switch unit, according to the test instruction output by the host computer, the switch control signal is outputted, so as to trigger the corresponding connection node in the switch unit to be connected or disconnected, and the corresponding contact of the test switchboard piece is controlled to be connected or disconnected; the measurement unit is connected with the switch unit, when the corresponding contact of the test switchboard piece is connected or disconnected, the test switchboard piece is tested and the measurement signal is outputted. The present application realizes the intelligentization of the board piece verification, can quickly and accurately locate the fault point, reduces the probability of human error, and significantly improves the work efficiency and the equipment reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of instrument testing, and more particularly to a test device, system and method for a switching plate of a reactor protection channel test. Background Art

[0002] The existing reactor protection channel test switch panel calibration is carried out using a common calibration bench. However, the existing calibration method has many drawbacks, as follows:

[0003] Traditional wiring methods are messy and prone to errors. When an anomaly occurs, locating the fault point is cumbersome and difficult to pinpoint quickly and accurately. Furthermore, PCB verification requires numerous external signal sources and measuring instruments, making site layout and work area management difficult. Consequently, existing verification methods are labor-intensive, repetitive, and time-consuming, significantly reducing test efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a reactor protection channel test switching plate testing device, system and method in view of the defects of the prior art.

[0005] The technical solution adopted by the present invention to solve the technical problem is: constructing a reactor protection channel test switch panel testing device, including: a main interface unit, a switch unit, a control unit, a communication unit and a measurement unit;

[0006] The main interface unit is connected to the test switching board to be tested, and is used to complete the connection between the test switching board to be tested and the test device;

[0007] The communication unit is connected to the control unit and is used for communication between the control unit and the host computer;

[0008] The control unit is connected to the switch unit and is used to output a switch control signal to the switch unit according to the test instruction issued by the host computer, so as to trigger the corresponding connection node in the switch unit to be connected or disconnected, and control the contact corresponding to the switch board to be tested to be connected or disconnected;

[0009] The measuring unit is connected to the switch unit, and is configured to test the switch board to be tested and output a measurement signal when the contacts corresponding to the switch board to be tested are connected or disconnected.

[0010] In the reactor protection channel test switching panel testing device of the present invention, the reactor protection channel test switching panel testing device further comprises: a human-computer interaction unit connected to the control unit;

[0011] The human-computer interaction unit is used to receive operation instructions input by the user and output operation information to the control unit according to the operation instructions, and display the information or signal returned by the control unit.

[0012] In the reactor protection channel test switching panel testing device of the present invention, the reactor protection channel test switching panel testing device further includes: a power supply unit;

[0013] The power supply unit is used to provide electrical energy to the testing device.

[0014] In the reactor protection channel test switching panel testing device of the present invention, the switch unit includes: a control switch, a power switch array and a measurement switch array;

[0015] The control switch is connected to the control unit, and is used to receive a control signal output by the control unit and perform a control on or control off operation according to the control signal;

[0016] The power switch array is connected to the control unit and the power supply unit, and is used to trigger the corresponding connection node to be connected or disconnected according to the power switch signal output by the control unit;

[0017] The measurement switch array is connected to the control unit and is used to trigger the corresponding connection node to be connected or disconnected according to the measurement switch signal output by the control unit, so as to trigger the connection or disconnection of the corresponding switching board to be tested.

[0018] In the reactor protection channel test switching panel testing device of the present invention, the measuring unit includes: a measuring module and a voltage reference generating module;

[0019] The input end of the measurement module is connected to the measurement switch array, the output end of the measurement module is connected to the control unit, and the voltage reference end of the measurement module is connected to the voltage reference generation module;

[0020] The voltage reference generation module is used to generate a reference voltage;

[0021] The measuring module is used to perform corresponding measurements on the switch board to be tested according to the reference voltage, and send the measurement signal to the control unit.

[0022] In the reactor protection channel test switching panel testing device of the present invention, the measuring unit further comprises: a switching module, a protection module and a signal conditioning module;

[0023] The switching module is connected to the measurement switch array and the control unit respectively, and is used to control the measurement unit to perform zero calibration or measurement according to the switching signal of the control unit;

[0024] The input end of the protection module is connected to the switching module, the output end of the protection module is connected to the input end of the signal conditioning module, and the protection module is used to protect the input signal from high voltage input;

[0025] The output end of the signal conditioning module is connected to the input end of the measurement module, and is used to condition the input signal and then send it to the measurement module.

[0026] In the reactor protection channel test switching panel testing device of the present invention, the reactor protection channel test switching panel testing device further comprises: a spare interface unit;

[0027] The backup interface unit is connected to the control unit and is used to perform the function of the main interface unit when the main interface unit fails or is abnormal.

[0028] In the reactor protection channel test switching panel testing device of the present invention, the reactor protection channel test switching panel testing device further includes: an S interface, a power interface, a measurement interface, a communication interface and a power switch;

[0029] The S interface is connected to the S test hole of the switch board to be tested for completing signal injection;

[0030] The power interface is used to receive a power signal;

[0031] The measuring interface is used to test the contact on / off of the switch board to be tested;

[0032] The communication interface is used for connecting the test device to the host computer;

[0033] The power switch is used to control the start and stop of the testing device.

[0034] In the reactor protection channel test switch panel test device of the present invention, the reactor protection channel test switch panel test device further includes: a housing, a power socket and a fan arranged on the side of the housing; the human-computer interaction unit includes: a main screen;

[0035] The main interface unit and the backup interface unit are arranged on the side of the front of the casing, the S interface, the power interface, the measurement interface, the communication interface and the power switch are arranged above the bottom of the casing, and the main screen is arranged on the front of the casing.

[0036] In the reactor protection channel test switching panel testing device of the present invention, the human-computer interaction unit includes: a main screen;

[0037] The main screen includes: a touch module and an output module;

[0038] The touch module is used to contact the trigger operation instruction input by the user and control the connection or disconnection of the corresponding virtual node according to the trigger operation instruction;

[0039] The output module is configured to send corresponding connection information or disconnection information to the control unit when the touch control module controls the corresponding virtual node to be connected or disconnected.

[0040] The present invention also provides a reactor protection channel test switch panel test system, comprising: the reactor protection channel test switch panel test device described above, and a host computer communicating with the reactor protection channel test switch panel test device;

[0041] The host computer is used to issue a test instruction to the reactor protection channel test switching panel test device, and receive a measurement signal returned by the reactor protection channel test switching panel test device and output it for display;

[0042] The reactor protection channel test switch panel testing device receives the test instruction and executes a test on the switch panel to be tested according to the test instruction.

[0043] The present invention also provides a method for testing a reactor protection channel test switch plate, comprising the following steps:

[0044] The host computer issues test instructions;

[0045] The control unit receives the test instruction and outputs a switch control signal according to the test instruction;

[0046] The corresponding connection nodes in the switch unit are connected or disconnected according to the switch control signal to control the connection or disconnection of the contacts corresponding to the switch board to be tested;

[0047] The measuring unit tests the switch board to be tested and outputs a measurement signal when the contact corresponding to the switch board to be tested is connected or disconnected;

[0048] The host computer receives the measurement signal and outputs it for display.

[0049] The reactor protection channel test switch panel test device, system and method implemented in the present invention have the following beneficial effects: the test device includes: a main interface unit, a switch unit, a control unit, a communication unit and a measurement unit; the main interface unit is connected to the test switch panel to be tested; the communication unit is connected to the control unit, and the control unit communicates with the host computer; the control unit is connected to the switch unit, and outputs a switch control signal according to the test instruction issued by the host computer to trigger the corresponding connection node in the switch unit to be connected or disconnected, and control the contact corresponding to the test switch panel to be tested to be connected or disconnected; the measurement unit is connected to the switch unit, and when the contact corresponding to the test switch panel to be tested is connected or disconnected, the test switch panel to be tested is tested and a measurement signal is output. The present invention realizes the intelligent verification of the panel, which can not only quickly and accurately locate the fault point, but also reduce the probability of human error, and significantly improve work efficiency and equipment reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0051] Figure 1 This is a schematic diagram of the reactor protection channel test switching plate provided by the invention;

[0052] Figure 2 This is a principle block diagram of a first embodiment of a test device for a switching panel for a reactor protection channel test provided by the present invention;

[0053] Figure 3 This is a schematic diagram of the front layout of the reactor protection channel test switching panel test device provided by the present invention;

[0054] Figure 4 It is a schematic diagram of the side arrangement of the reactor protection channel test switching plate test device provided by the present invention;

[0055] Figure 5 This is a principle block diagram of a second embodiment of a test device for a switching panel for a reactor protection channel test provided by the present invention;

[0056] Figure 6 This is a schematic diagram of signal transmission between the test device provided by the present invention and the switching board to be tested;

[0057] Figure 7 This is a schematic diagram of the intelligent wiring of the screen provided by the present invention without wiring;

[0058] Figure 8 It is a schematic diagram of the wiring implementation of the screen intelligent wiring provided by the present invention;

[0059] Figure 9 It is a flow chart of the reactor protection channel test switching plate testing method provided by the present invention. DETAILED DESCRIPTION

[0060] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described in detail with reference to the accompanying drawings.

[0061] like Figure 1 FIG. 1 is a schematic diagram of a switch board to be tested according to the present invention. The functional test of the switch board to be tested may include two control modes, namely manual control and automatic control.

[0062] like Figure 1 As shown, both manual and automatic control can be used to control relays K1, K2, and K3. The release delay primarily controls the response delay after the relays are reset. The reactor protection channel test switch panel testing device 100 provided by the present invention can perform functional testing of the reactor protection channel test switch panel, while simultaneously measuring the contact continuity of relays K1, K2, and K3 in both manual and automatic control states.

[0063] Specifically, refer to Figure 2 , which is a principle block diagram of the first embodiment of the reactor protection channel test switching panel testing device 100 provided by the present invention.

[0064] like Figure 2 As shown, the reactor protection channel test switch panel testing device 100 includes: a main interface unit 10, a switch unit 20, a control unit 30, a communication unit 40 and a measurement unit 50.

[0065] The main interface unit 10 is connected to the switch board to be tested, and is used to complete the connection between the switch board to be tested and the test device 100 .

[0066] Optionally, in an embodiment of the present invention, the main interface unit 10 is a socket for plugging and unplugging the test switch board to be tested, and matches the pins of the test switch board to be tested. For example, for a 64-pin reactor protection channel test switch board, the main interface unit 10 is a socket with 64 pin terminals.

[0067] When testing is required, the switch board to be tested is inserted into the main interface unit 10 to achieve signal connection between the switch board to be tested and the test device 100, thereby completing the intelligent test of the board.

[0068] Furthermore, in some embodiments, Figure 2 As shown, the test device 100 may further include a backup interface unit 70. The backup interface unit 70 is connected to the control unit 30 and is used to perform the functions of the main interface unit 10 when the main interface unit 10 fails or is abnormal.

[0069] Specifically, the backup interface unit 70 is a backup for the main interface unit 10. When the main interface unit 10 fails or is abnormal, the functions of the main interface unit 10 can be realized through the backup interface unit 70. In addition, if an external test terminal is connected, the signals of the main interface unit 10 can also be tested and diagnosed synchronously.

[0070] The communication unit 40 is connected to the control unit 30 and is used for the control unit 30 to communicate with a host computer.

[0071] Optionally, in an embodiment of the present invention, the communication unit 40 may be a communication isolation circuit, through which communication and isolation between the control unit 30 and the host computer can be achieved, thereby completing signal transmission between the host computer and the test device 100.

[0072] The control unit 30 is connected to the switch unit 20 and is used to output a switch control signal to the switch unit 20 according to the test instruction issued by the upper computer, so as to trigger the corresponding connection node in the switch unit 20 to be connected or disconnected, and control the contact points corresponding to the switch board to be tested to be connected or disconnected.

[0073] Specifically, in an embodiment of the present invention, after the control unit 30 receives the test instruction sent by the upper computer, it generates a corresponding switch control signal according to the received test instruction, and sends the generated switch control signal to the switch unit 20 to control the switch 21 to connect or disconnect the corresponding connection node in the switch unit 20, and then control the contacts of the corresponding relay in the test switching board to be tested to be connected or disconnected, thereby realizing the test of the test switching board to be tested.

[0074] Optionally, in an embodiment of the present invention, the switch control signal output by the control unit 30 includes: a control signal, a power switch signal, and a measurement switch signal.

[0075] Optionally, in an embodiment of the present invention, the control unit 30 may use an NXP single-chip microcomputer, through which the relevant control of the functional test of the switching board to be tested and the communication between the test device 100 and the host computer can be realized.

[0076] The measuring unit 50 is connected to the switch unit 20 and is used to test the switch board to be tested and output a measurement signal when the contacts corresponding to the switch board to be tested are connected or disconnected.

[0077] Specifically, in the embodiment of the present invention, the switch unit 20 is used to control the on / off state of the contacts of the corresponding relay in the test switch board, and the measurement unit 50 is used to measure the on / off state of the contacts of the corresponding relay in the test switch board. In the embodiment of the present invention, the measurement unit 50 performs contact resistance measurement on the test switch board.

[0078] Furthermore, in some embodiments, Figure 2 As shown, the reactor protection channel test switching panel testing device 100 further includes: a human-computer interaction unit 60 connected to the control unit 30 .

[0079] The human-computer interaction unit 60 is used to receive operation instructions input by the user, output operation information to the control unit 30 according to the operation instructions, and display the information or signal returned by the control unit 30.

[0080] Optionally, in an embodiment of the present invention, the human-computer interaction unit 60 includes a main screen 118. The main screen 118 includes a touch module and an output module.

[0081] The touch module is used to contact the trigger operation instruction input by the user and control the corresponding virtual node to connect or disconnect according to the trigger operation instruction. The output module is used to send the corresponding connection information or disconnection information to the control unit 30 when the touch module controls the corresponding virtual node to connect or disconnect.

[0082] Optionally, in the embodiment of the present invention, the virtual node is a node displayed on the display interface of the main screen 118, specifically as follows Figure 7 shown.

[0083] The virtual nodes displayed on the display interface correspond one-to-one to the pin terminals on the main interface unit 10 or the backup interface unit 70. The connection relationship between the virtual nodes and the switch unit 20 is the same as the connection relationship between the main interface unit 10 and the switch unit 20. That is, when the user connects any two virtual nodes on the display interface, the display interface will display the connection status of the two virtual nodes (i.e., Figure 9 As shown), at the same time, the two connection nodes in the switch unit 20 corresponding to the two virtual nodes are also connected, and the contacts in the relay corresponding to the to-be-tested switching board corresponding to the main interface unit 10 are also connected.

[0084] That is Figure 8 As shown, through the main screen 118 of the embodiment of the present invention, the connection of the pin terminals of the switch board to be tested can be achieved. Figure 8 As shown, the output signal and power signal connection can also be achieved, and the connection can be canceled (ie, the connected node is disconnected) by the touch operation of the main screen 118.

[0085] Specifically, if the two virtual nodes are connected on the main screen 118, the output module will send the corresponding touch information to the control unit 30, and the control unit 30 will generate a corresponding switch control signal to the switch unit 20 based on the touch information to control the switch 21 to connect the corresponding two nodes in the switch unit 20, thereby realizing the connection of the hardware board pin terminals.

[0086] like Figure 8 As shown, it is the smart touch screen of the 64-pin board. On the main screen 118, connect pin 61 to 28V+, connect pin 40 to 28V-, connect pin 55 to pin 46, and connect pin 10 and pin 27 to the measurement terminals of the measurement unit 50 respectively. Correspondingly, the pin terminals of the switch board to be tested (i.e., pin 61 is connected to 28V+, pin 40 is connected to 28V-, pin 55 is connected to pin 46, and pin 10 and pin 27 are connected to the measurement terminals of the measurement unit 50 respectively) are connected. Figure 9 The figure shows that a 28V power signal is connected to measure the resistance between pins 10 and 27.

[0087] Furthermore, in some embodiments, the reactor protection channel test switch panel testing device 100 further includes: a power supply unit 80. The power supply unit 80 is used to provide electrical energy to the testing device 100.

[0088] Optionally, in an embodiment of the present invention, the power supply unit 80 is an independent power supply, which can be used to provide required electrical energy to the testing device 100 .

[0089] Furthermore, in order to reduce power supply noise and prevent mutual crosstalk, the power supply unit 80 in the embodiment of the present invention adopts an industrial frequency transformer, which can provide a 28V power supply.

[0090] Further, if Figure 3 As shown, the reactor protection channel test switching panel testing device 100 further includes: an S interface 111, a power interface 112, a measurement interface 113, a communication interface 114 and a power switch.

[0091] The S interface 111 is connected to the S test hole of the switch board to be tested, so as to complete signal injection.

[0092] Specifically, the S interface 111 is an interface corresponding to the S test hole (i.e., the signal injection port) of the switch panel to be tested. During the test process, it is necessary to connect the S interface 111 to the S test hole of the panel in advance to complete the functional test of the signal injection port.

[0093] In the embodiment of the present invention, the power interface 112 is used to receive a power signal.

[0094] Specifically, the power interface 112 is an interface for inputting a 28V DC voltage signal. The power interface 112 is mainly used for the automatic switching test function of the test switching board to be tested. When the pin corresponding to the test switching board to be tested receives a 28V DC voltage signal, the test switching board to be tested switches to an automatic state. Under normal circumstances, the 28V DC voltage signal can be given by the power supply unit 80 in the test device 100. When an abnormality occurs in the internal signal of the test device 100, it can also be given by an external power supply signal, that is, applied to the power interface 112.

[0095] In the embodiment of the present invention, the measurement interface 113 is used to test whether the contacts of the switch board to be tested are on or off.

[0096] Specifically, the measurement interface 113 is used to test the contact on / off status of the switch board to be tested. Under normal circumstances, the test can be automatically completed directly through the test device 100. When an abnormality occurs in the internal signal, the test can also be completed by connecting an external instrument through the measurement interface 113.

[0097] In the embodiment of the present invention, the communication interface 114 is used for connecting the testing device 100 to a host computer.

[0098] Optionally, in an embodiment of the present invention, the communication interface 114 may be a USB interface. By providing the USB interface, the test device 100 can be connected and communicated with a host computer.

[0099] In the embodiment of the present invention, the power switch is used to control the start and stop of the testing device 100 .

[0100] Furthermore, in an embodiment of the present invention, Figure 3 and Figure 4 As shown, the reactor protection channel test switching panel testing device 100 further includes: a casing 101 , a power socket 115 and a fan 117 arranged on the side of the casing 101 .

[0101] Among them, Figure 3 As shown, the main interface unit 10 and the backup interface unit 70 are arranged on the side of the front of the housing 101, the S interface 111, the power interface 112, the measurement interface 113, the communication interface 114, and the power switch are arranged above the bottom of the housing 101, and the main screen 118 is arranged on the front of the housing 101. At the same time, circuit components such as the switch unit 20, the control unit 30, the communication unit 40, and the measurement unit 50 are all arranged inside the housing 101.

[0102] Optionally, in an embodiment of the present invention, the housing 101 may be made of an aluminum alloy shell.

[0103] like Figure 3As shown, the present invention realizes miniaturization and lightness of the testing device 100 by adopting this design, while making the operation more portable and improving the efficiency of on-site use and operation.

[0104] refer to Figure 5 , which is a principle block diagram of the second embodiment of the reactor protection channel test switching panel testing device 100 provided by the present invention.

[0105] like Figure 5 As shown, this embodiment is based on the first embodiment, and further, the switch unit 20 includes: a control switch 21, a power switch array 22 and a measurement switch array 23.

[0106] The control switch 21 is connected to the control unit 30 and is configured to receive control signals output by the control unit 30 and perform on- or off-control operations based on the control signals. The power switch array 22 is connected to the control unit 30 and the power supply unit 80 and is configured to trigger the corresponding connection nodes to connect or disconnect based on the power switch signals output by the control unit 30. The measurement switch array 23 is connected to the control unit 30 and is configured to trigger the corresponding connection nodes to connect or disconnect based on the measurement switch signals output by the control unit 30, thereby triggering the corresponding connection nodes to connect or disconnect based on the measurement switch signals output by the control unit 30.

[0107] By turning on and off the individual switches in the power switch array 22 and the measurement switch array 23, the connections between the connection nodes are turned on and off, ultimately forming different connection patterns between the pin terminals in the main interface unit 10. These different connection patterns between the pin terminals in the main interface unit 10 correspond to the connection patterns between the contacts of the corresponding relays in the test switching board under test. Therefore, the control signals, power switch signals, and / or measurement switch signals output by the control unit 30 can be used to control the operation of the switches in the control switch 21, the power switch array 22, and the measurement switch array 23, thereby performing a functional test on the test switching board under test.

[0108] Optionally, in an embodiment of the present invention, to improve system reliability, reduce power consumption, and save space, the switches in the switch array may employ contactless photoelectric relays. Furthermore, contactless photoelectric relays with low thermal potential and low on-resistance may be selected. After a corresponding test instruction is input into the host computer, the host computer transmits the relevant instruction to the communication unit 40, which then transmits it to the control unit 30. The control unit 30 then performs I / O expansion and controls the on and off of the switches in each switch array, thereby enabling testing of the switching board to be tested.

[0109] In some embodiments, such as Figure 5 As shown, the measuring unit 50 includes: a measuring module 54 and a voltage reference generating module 55 .

[0110] An input terminal of the measurement module 54 is connected to the measurement switch array 23 , an output terminal of the measurement module 54 is connected to the control unit 30 , and a voltage reference terminal of the measurement module 54 is connected to the voltage reference generation module 55 .

[0111] The voltage reference generating module 55 is used to generate a reference voltage.

[0112] Optionally, in an embodiment of the present invention, the voltage reference generation module 55 is a highly stable reference module, that is, the voltage reference generation module 55 is implemented using a reference module with a value less than or equal to 0.0002, thereby improving the stability and reliability of the reference voltage.

[0113] The measurement module 54 is used to perform corresponding measurements on the switching board to be tested according to the reference voltage, and send a measurement signal to the control unit 30 .

[0114] Optionally, in the embodiment of the present invention, the measurement module 54 may be an analog-to-digital conversion chip. Further, the measurement module 54 may be implemented using a 24-bit high-precision analog-to-digital conversion chip.

[0115] Further, if Figure 5 As shown, the measuring unit 50 further includes: a switching module 51 , a protection module 52 and a signal conditioning module 53 .

[0116] The switching module 51 is connected to the measurement switch array 23 and the control unit 30 respectively, and is used to control the measurement unit 50 to perform zero calibration or measurement according to the switching signal of the control unit 30.

[0117] Specifically, the switching module 51 is a zero calibration or measurement switching switch, through which the measuring unit 50 can be controlled to perform zero calibration detection or resistance measurement operation.

[0118] The input end of the protection module 52 is connected to the switching module 51 , and the output end of the protection module 52 is connected to the input end of the signal conditioning module 53 . The protection module 52 is used to protect the input signal from high voltage input.

[0119] Optionally, in an embodiment of the present invention, the protection module 52 can be implemented by current limiting with a resistor and voltage limiting with a reverse-connected dual diode, i.e., the dual diode includes a first sub-diode and a second sub-diode. The anode of the first sub-diode is connected to the cathode of the second sub-diode and connected in series with the resistor, and the cathode of the first sub-diode and the anode of the second sub-diode are both connected to a positive signal.

[0120] The protection module 52 can protect the input signal from high voltage input, with a maximum allowable voltage of 60 VDC.

[0121] The output end of the signal conditioning module 53 is connected to the input end of the measurement module 54 , and is used to condition the input signal and then send it to the measurement module 54 .

[0122] By conditioning the input signal, the input signal can be adjusted to a suitable voltage required for detection by the measurement module 54 , thereby improving the stability and reliability of detection by the measurement module 54 .

[0123] Optionally, in an embodiment of the present invention, the signal conditioning module 53 can be implemented by a high-performance operational amplifier and a metal foil resistor, wherein the specific circuit structure can be adjusted according to the actual design.

[0124] In the embodiment of the present invention, the signal transmission between the reactor protection channel test switch panel test device 100 and the switch panel to be tested is as follows: Figure 6 shown.

[0125] Specifically, the testing device 100 sends an automatic control test and / or normal switching test signal to the switching board to be tested to test the switching board to be tested, and then the testing device 100 measures the resistance value of the contact of the corresponding relay in the switching board to be tested (the resistance value is the measurement signal). The testing device 100 sends the measured measurement signal to the host computer, and the host computer outputs and displays it.

[0126] The present invention also provides a reactor protection channel test switch panel testing system, which includes: a reactor protection channel test switch panel testing device 100 disclosed in an embodiment of the present invention, and a host computer that communicates with the reactor protection channel test switch panel testing device 100.

[0127] The host computer is used to send test instructions to the reactor protection channel test switching panel test device 100, and receive measurement signals returned by the reactor protection channel test switching panel test device 100 and output them for display.

[0128] Optionally, in the embodiment of the present invention, the output display of the measurement signal by the host computer can be implemented in the form of a report.

[0129] The reactor protection channel test switch panel testing device 100 receives a test instruction and executes a test on the switch panel to be tested according to the test instruction.

[0130] The present invention can realize automatic switching and control of multiple pins of the test switch board to be tested through the power switch array 22 and the measurement switch array 23 in the test device 100, and complete the intelligent testing of the reactor protection channel test switch board according to relevant test instructions, and finally present it in the form of a report.

[0131] Furthermore, by using a highly stable reference and a high-precision analog-to-digital conversion chip for measurement, and protecting the input signal from high voltage input, high-precision measurement of the resistance value is achieved, which can effectively measure and judge the contact resistance.

[0132] Further, refer to Figure 9 , which is a flow chart of an optional embodiment of the reactor protection channel test switching panel testing method provided by the present invention.

[0133] The reactor protection channel test switching panel testing method can be implemented by the reactor protection channel test switching panel testing system disclosed in the embodiment of the present invention.

[0134] Specifically, such as Figure 9 As shown, the reactor protection channel test switching plate testing method includes the following steps:

[0135] Step S901: The host computer issues a test instruction.

[0136] Step S902: The control unit 30 receives a test instruction and outputs a switch control signal according to the test instruction.

[0137] Step S903: The corresponding connection nodes in the switch unit 20 are connected or disconnected according to the switch control signal to control the connection or disconnection of the contacts corresponding to the switch board to be tested.

[0138] Step S904 : When the contact corresponding to the switch board to be tested is connected or disconnected, the measuring unit 50 tests the switch board to be tested and outputs a measurement signal.

[0139] Step S905: The host computer receives the measurement signal and outputs it for display.

[0140] The reactor protection channel test switch panel testing method and device of the present invention enable intelligent verification and testing of the reactor protection channel test switch panel, eliminating tedious manual operations and significantly improving verification and testing efficiency by at least 90%, significantly reducing man-hours and costs. Furthermore, intelligent testing of the reactor protection channel test switch panel effectively reduces the risk of human error and improves the reliability of critical equipment.

[0141] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0142] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the above description has generally described the components and steps of each example according to their functions. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present invention.

[0143] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0144] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. All equivalent variations and modifications within the scope of the claims of the present invention are intended to be covered by the claims of the present invention.

Claims

1. A reactor protection channel test switch panel testing device, characterized in that: include: Main interface unit, switch unit, control unit, communication unit and measurement unit; The main interface unit is connected to the test switching board to be tested, and is used to complete the connection between the test switching board to be tested and the test device; The communication unit is connected to the control unit and is used for communication between the control unit and the host computer; The control unit is connected to the switch unit and is used to output a switch control signal to the switch unit according to the test instruction issued by the host computer, so as to trigger the corresponding connection node in the switch unit to be connected or disconnected, and control the contact corresponding to the switch board to be tested to be connected or disconnected; The measuring unit is connected to the switch unit, and is used to test the switch board to be tested and output a measurement signal when the contact corresponding to the switch board to be tested is connected or disconnected; The test device includes a manual control mode and an automatic control mode: Measure the on-off state of the contacts of relay K1, relay K2 and relay K3 in manual control state and automatic control state respectively; The measuring unit includes a switching module for controlling the measuring unit to perform zero calibration or measurement operations according to a switching signal of the control unit; The measurement signal includes a resistance value. In the automatic control mode, the measurement operation includes: Send a test signal and / or a normal test signal to the switch board to be tested, and measure the resistance value of the corresponding relay contact on and off.

2. The reactor protection channel test switching plate testing device according to claim 1, characterized in that: The reactor protection channel test switching panel testing device further includes: a human-computer interaction unit connected to the control unit; The human-computer interaction unit is used to receive operation instructions input by the user and output operation information to the control unit according to the operation instructions, and display the information or signal returned by the control unit.

3. The reactor protection channel test switching plate testing device according to claim 1, characterized in that: The reactor protection channel test switching panel testing device further includes: a power supply unit; The power supply unit is used to provide electrical energy to the testing device.

4. The reactor protection channel test switching plate testing device according to any one of claims 1 to 3, characterized in that: The switch unit includes: a control switch, a power switch array and a measurement switch array; The control switch is connected to the control unit, and is used to receive a control signal output by the control unit and perform a control on or control off operation according to the control signal; The power switch array is connected to the control unit and the power supply unit, and is used to trigger the corresponding connection node to be connected or disconnected according to the power switch signal output by the control unit; The measurement switch array is connected to the control unit and is used to trigger the corresponding connection node to be connected or disconnected according to the measurement switch signal output by the control unit, so as to trigger the connection or disconnection of the corresponding switching board to be tested.

5. The reactor protection channel test switching plate testing device according to claim 4, characterized in that: The measuring unit includes: a measuring module and a voltage reference generating module; The input end of the measurement module is connected to the measurement switch array, the output end of the measurement module is connected to the control unit, and the voltage reference end of the measurement module is connected to the voltage reference generation module; The voltage reference generation module is used to generate a reference voltage; The measuring module is used to perform corresponding measurements on the switch board to be tested according to the reference voltage, and send the measurement signal to the control unit.

6. The reactor protection channel test switching plate testing device according to claim 5, characterized in that: The measuring unit further includes: a protection module and a signal conditioning module; The switching module is connected to the measurement switch array and the control unit respectively; The input end of the protection module is connected to the switching module, the output end of the protection module is connected to the input end of the signal conditioning module, and the protection module is used to protect the input signal from high voltage input; The output end of the signal conditioning module is connected to the input end of the measurement module, and is used to condition the input signal and then send it to the measurement module.

7. The reactor protection channel test switching plate testing device according to claim 2, characterized in that: The reactor protection channel test switch panel testing device further includes: a spare interface unit; The backup interface unit is connected to the control unit and is used to perform the function of the main interface unit when the main interface unit fails or is abnormal.

8. The reactor protection channel test switching plate testing device according to claim 7, characterized in that: The reactor protection channel test switch panel test device also includes: an S interface, a power interface, a measurement interface, a communication interface and a power switch; The S interface is connected to the S test hole of the switch board to be tested for completing signal injection; The power interface is used to receive a power signal; The measuring interface is used to test the contact on / off of the switch board to be tested; The communication interface is used for connecting the test device to the host computer; The power switch is used to control the start and stop of the testing device.

9. The reactor protection channel test switching plate testing device according to claim 8, characterized in that: The reactor protection channel test switch panel test device further includes: a housing, a power socket and a fan arranged on the side of the housing; the human-computer interaction unit includes: a main screen; The main interface unit and the backup interface unit are arranged on the side of the front of the casing, the S interface, the power interface, the measurement interface, the communication interface and the power switch are arranged above the bottom of the casing, and the main screen is arranged on the front of the casing.

10. The reactor protection channel test switching plate testing device according to claim 9, characterized in that: The human-computer interaction unit includes: a main screen; The main screen includes: a touch module and an output module; The touch module is used to contact the trigger operation instruction input by the user and control the connection or disconnection of the corresponding virtual node according to the trigger operation instruction; The output module is configured to send corresponding connection information or disconnection information to the control unit when the touch control module controls the corresponding virtual node to be connected or disconnected.

11. A reactor protection channel test switch panel test system, characterized in that: include: The reactor protection channel test switching panel test device according to any one of claims 1 to 10, and a host computer communicating with the reactor protection channel test switching panel test device; The host computer is used to issue a test instruction to the reactor protection channel test switching panel test device, and receive a measurement signal returned by the reactor protection channel test switching panel test device and output it for display; The reactor protection channel test switch panel testing device receives the test instruction and performs a test on the switch panel to be tested according to the test instruction; The test instructions include manual control mode instructions and automatic control mode instructions, and the measurement signal includes the on-off resistance value of the relay contact measured in the automatic control mode.

12. A method for testing a switching plate for a reactor protection channel test, applied to the device for testing a switching plate for a reactor protection channel test according to any one of claims 1 to 10, characterized in that: The following steps are involved: The host computer issues a test instruction; the test instruction includes a manual control mode instruction or an automatic control mode instruction; The control unit receives the test instruction and outputs a switch control signal according to the test instruction; The corresponding connection nodes in the switch unit are connected or disconnected according to the switch control signal to control the connection or disconnection of the contacts corresponding to the switch board to be tested; The measuring unit tests the switch board to be tested and outputs a measurement signal when the contact corresponding to the switch board to be tested is connected or disconnected; The test device includes a manual control mode and an automatic control mode: Measure the on-off state of the contacts of relay K1, relay K2 and relay K3 in manual control state and automatic control state respectively; The measuring unit controls the measuring unit to perform zero calibration or measurement operation according to the switching signal of the control unit; The measurement signal includes a resistance value. In the automatic control mode, the measurement operation includes: Sending a test signal and / or a normal test signal to the switch board to be tested, and measuring the resistance value of the corresponding relay contact on and off; The host computer receives the measurement signal and outputs it for display.

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