CN216561521U - Signal channel checking device suitable for industrial control system of nuclear power station - Google Patents
Signal channel checking device suitable for industrial control system of nuclear power station Download PDFInfo
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- CN216561521U CN216561521U CN202122675725.9U CN202122675725U CN216561521U CN 216561521 U CN216561521 U CN 216561521U CN 202122675725 U CN202122675725 U CN 202122675725U CN 216561521 U CN216561521 U CN 216561521U
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Abstract
The utility model belongs to the technical field of industrial control, and particularly relates to a signal channel checking device suitable for an industrial control system of a nuclear power station, which comprises: the integrated circuit comprises a front cage, a rear cage, an integrated circuit board signal processing layer and a power supply conversion layer, wherein the front cage comprises a signal processing layer, a signal acquisition layer and a power supply conversion layer; the signal acquisition layer is connected with the interface layer through the integrated circuit board; the input power supplies power to the signal processing layer one by one through the power control layer and the power conversion layer; the input power supplies supply power to the signal acquisition layer one by one through the power control layer, the power conversion layer, the signal processing layer and the integrated circuit board; the interface layer is used for connecting a signal channel of the tested equipment; the signal processing layer is used for controlling the signal acquisition layer to output a test signal to the tested equipment through the interface layer; the interface layer and the signal acquisition layer are used for receiving an operation result fed back by the tested equipment according to the test signal, and whether the input/output channel of the industrial control cabinet is qualified or not can be automatically judged, so that the test quality is ensured, and the working efficiency is improved.
Description
Technical Field
The application belongs to the technical field of industrial control, and particularly relates to a signal channel checking device suitable for an industrial control system of a nuclear power station.
Background
Industrial control systems are typically arranged in the nuclear power plant building in the form of control cabinets. The control cabinet mainly comprises a main controller, an input/output (I/O) card and a networking communication component, and is used for collecting input signals, processing signals and logic and outputting control commands. The I/O cards in the control cabinets are typically hard-wired to local devices in the plant such as transmitters, actuators, etc.
In debugging and operation maintenance of a control cabinet, signal channel verification is mainly carried out aiming at input/output of the cabinet, the traditional method is that a signal generator is used for realizing analog input of each signal, and measurement is carried out at a signal output end of the control cabinet.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a signal channel verifying attachment suitable for nuclear power station industrial control system solves traditional way work efficiency low, can't initiate the test simultaneously to a plurality of passageways in the control cabinet, and can not compare the problem whether the test satisfies the requirement automatically.
The technical scheme for realizing the purpose of the application is as follows:
the application provides a signal channel verifying attachment suitable for nuclear power station industrial control system includes: the integrated circuit comprises a front cage, an integrated circuit board and a rear cage;
the front cage, comprising: the device comprises a signal processing layer, a signal acquisition layer and a power conversion layer; the rear cage, comprising: an interface layer and a power control layer;
the integrated circuit board is arranged between the front cage and the rear cage; the signal processing layer is connected with the signal acquisition layer through the integrated circuit board; the signal acquisition layer is connected with the interface layer through the integrated circuit board;
an input power supply supplies power to the signal processing layer through the power supply control layer and the power supply conversion layer one by one; the input power supply supplies power to the signal acquisition layer through the power supply control layer, the power supply conversion layer, the signal processing layer and the integrated circuit board one by one;
the interface layer is used for connecting a signal channel of the tested equipment;
the signal processing layer is used for controlling the signal acquisition layer to output a test signal to the tested device through the interface layer; and the interface layer and the signal acquisition layer are used for receiving the operation result fed back by the tested device according to the test signal.
Optionally, the interface layer includes: analog quantity input interface card, analog quantity output interface card, digital quantity input interface card and digital quantity output interface card;
the analog input interface card is used for connecting all channels of the analog output board card of the tested equipment;
the analog quantity output interface card is used for connecting all channels of the analog quantity input board card of the tested equipment;
the digital quantity input interface card is used for connecting all channels of the digital quantity output board card of the tested equipment;
and the digital output interface card is used for connecting all channels of the digital input board card of the tested equipment.
Optionally, the signal acquisition layer comprises: the device comprises an analog quantity input module, an analog quantity output module, a digital quantity input module and a digital quantity output module;
the analog input module is communicated with the analog input interface card through the integrated circuit board;
the analog quantity output module is communicated with the analog quantity output interface card through the integrated circuit board;
the digital quantity input module is communicated with the digital quantity input interface card through the integrated circuit board;
and the digital quantity output module is communicated with the digital quantity output interface card through the integrated circuit board.
Optionally, the analog input module corresponds to the analog input interface card one to one;
the analog quantity output modules correspond to the analog quantity output interface cards one to one;
the digital quantity input module corresponds to the digital quantity input interface card one by one;
and the digital quantity output module corresponds to the digital quantity output interface card one by one.
Optionally, the number of the analog input interface cards is two; eight analog output interface cards are provided; the digital quantity input interface cards are ten blocks; the number of the digital quantity output interface cards is ten;
the analog quantity input modules are two; eight analog quantity output modules, ten digital quantity input modules and ten digital quantity output modules.
Optionally, the power control layer includes: the air switch is connected with the power switch;
the input power supply is connected with the power supply conversion layer through the external power supply wire inlet and the air switch; the power supply conversion layer is connected with the signal processing layer through the power supply switch;
and the power supply conversion layer is used for converting the input power supply into a power supply for supplying power to the signal processing layer.
Optionally, the signal processing layer includes: a power supply module;
the power supply module is connected with the signal acquisition layer through the power switch and the integrated circuit board and is used for converting the power supply output by the power conversion layer into the power supply for supplying power to the signal acquisition layer;
the power switch is used for controlling power supply for the signal processing layer and the signal acquisition layer.
Optionally, the power switch includes three positions: gear A, gear B and gear C;
in gear A, all power supplies are cut off;
the gear B is used for switching on the power supply of the signal processing layer and switching off the power supply of the signal acquisition layer;
and a gear C for turning on the power supply of the signal processing layer and the power supply of the signal acquisition layer.
Optionally, the signal processing layer further includes: a computer module, a capacitor module and a memory;
the computer module is connected with the capacitor module and the memory and comprises a computer, an RJ45 network interface, a DVI interface and two USB interfaces; the DVI interface can be externally connected with a display.
The beneficial technical effect of this application lies in:
(1) the application provides a signal channel verifying attachment suitable for nuclear power station industrial control system can initiate the signal channel test of industrial control rack in batches through the operation test script to monitoring received signal through the script of compiling in advance, judging automatically whether the input/output channel of industrial control rack is qualified, ensure test quality, improve work efficiency.
(2) The application provides a signal channel calibration equipment suitable for nuclear power station industrial control system need not connect external devices such as instrument or universal meter on the spot, through the input signal of the direct simulation industrial control rack of the device, can be used to the trouble of on-the-spot fault equipment reappeares and tests to be convenient for analysis fault reason and fault point, carry out automatic monomer function debugging for industrial control system rack and provide hardware support.
(3) The signal channel checking device suitable for the industrial control system of the nuclear power station can be simultaneously connected with various types of input/output clamping pieces of a safety instrument control system cabinet, can realize the integral checking of channels, is convenient to check any channel at any time, and improves the working efficiency;
(4) the signal channel checking device suitable for the industrial control system of the nuclear power station can monitor all channels simultaneously, can quickly eliminate wiring errors and improve the error elimination capability; meanwhile, the phenomenon of signal wire crosstalk caused by signal wire breakage can be effectively found, and the working quality is improved.
Drawings
Fig. 1 is a schematic structural diagram of a signal channel checking apparatus suitable for a nuclear power plant industrial control system according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an interface layer in a signal channel checking apparatus suitable for a nuclear power plant industrial control system according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a signal acquisition layer in a signal channel checking apparatus suitable for a nuclear power plant industrial control system according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a power control layer in a signal channel checking apparatus suitable for a nuclear power plant industrial control system according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a signal processing layer in a signal channel checking device suitable for a nuclear power plant industrial control system according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a power switch in a signal channel checking device suitable for a nuclear power plant industrial control system according to an embodiment of the present application.
In the figure: 100-front cage; 101-signal processing layer, 102-signal acquisition layer, 103-power conversion layer; 1011-power supply module, 1012-computer module, 1013-capacitor module, 1014-memory; 1021-analog input module, 1022-analog output module, 1023-digital input module, 1024-digital output module;
200-an integrated circuit board;
300-rear cage; 301-interface layer, 302-power control layer; 3011-analog input interface card, 3012-analog output interface card, 3013-digital input interface card, 3014-digital output interface card; 3021-external power supply inlet port, 3022-air switch, and 3023-power switch.
Detailed Description
In order to make the technical solutions in the embodiments of the present application more comprehensible to those skilled in the art, the following description will be made in detail and completely with reference to the accompanying drawings in the embodiments of the present application. It should be apparent that the embodiments described below are only some of the embodiments of the present application, and not all of them. All other embodiments that can be derived by a person skilled in the art from the embodiments described herein without inventive step are within the scope of the present application.
In order to solve the problems in the prior art, the embodiment of the application provides a signal channel checking device suitable for an industrial control system of a nuclear power station, wherein related modules are integrated in a small case, and a plurality of layers of cages are arranged in the case and used for assembling and fixing the modules; a power supply conversion module is arranged at a cage at the bottom of the case to convert a 220V alternating current power supply into a 24V direct current power supply, so that the power supply requirements of all modules are met; signal transmission and communication of modules in the chassis are realized through an integrated circuit board prefabricated on the back of the chassis; the control of the input and output modules in the case is realized by arranging a computer module and a memory, and the functions of signal batch output, batch receiving and cross comparison are realized by running a pre-programmed script.
The embodiment of the application provides a signal channel checking device suitable for a nuclear power station industrial control system, which can simulate all input signals of an industrial control cabinet and the change trend of the signals through running a test script, receive the output of the industrial control cabinet at the same time, and automatically compare the signal value received by a monitoring test device with a set reference value so as to judge whether the signal channel of the industrial control cabinet is qualified.
Based on the above, in order to clearly and specifically explain the above advantages of the present application, the following description of the embodiments of the present application will be made with reference to the accompanying drawings.
Referring to fig. 1, the drawing is a schematic structural diagram of a signal channel checking apparatus suitable for an industrial control system of a nuclear power plant according to an embodiment of the present application.
The signal channel verifying device suitable for the industrial control system of the nuclear power station provided by the embodiment of the application comprises: front cage 100, integrated circuit board 200, and rear cage 300;
integrated circuit board 200 is disposed between front cage 100 and rear cage 300; the signal processing layer 101 is connected with the signal acquisition layer 102 through the integrated circuit board 200; the signal acquisition layer 102 is connected with the interface layer 301 through the integrated circuit board 200;
the input power supplies power to the signal processing layer 101 through the power control layer 302 and the power conversion layer 103 one by one; the input power supplies power 102 to the signal acquisition layer through the power control layer 302, the power conversion layer 103, the signal processing layer 101 and the integrated circuit board 200 one by one;
the interface layer 301 is used for connecting a signal channel of the tested device;
the signal processing layer 101 is used for controlling the signal acquisition layer 102 to output a test signal to the tested device through the interface layer 301; and is further configured to receive the operation result fed back by the device under test according to the test signal via the interface layer 301 and the signal acquisition layer 102.
It can be understood that the embodiment of the application can simulate the input and output of the industrial control system cabinet, including switching value signal input/output (for example, in the form of 0V or 24V voltage) and analog value signal input/output (for example, in the form of 0-20mA current) so as to carry out the signal channel test of the control cabinet (namely, the device to be tested).
In a specific example, a signal channel checking device suitable for an industrial control system of a nuclear power plant provided by an embodiment of the present application is divided into three parts: front cage 100, integrated circuit board 200, rear cage 300. The front cage 100 is divided into four layers: the first layer is a signal processing layer 101, the second layer and the third layer are signal acquisition layers 102, and the fourth layer is a power conversion layer 103 for converting 220V alternating current into 24V direct current. The rear cage 300 is also divided into four layers: the first layer to the third layer are interface layers 301 for installing interface cards and connecting the tested device through a prefabricated cable, and the fourth layer is a power control layer 302.
In some possible implementation manners of the embodiment of the present application, as shown in fig. 2, the interface layer 301 may specifically include: an analog input interface card 3011, an analog output interface card 3012, a digital input interface card 3013, and a digital output interface card 3014;
the analog input interface card 3011 is used to connect all channels of the analog output board card of the device under test;
the analog quantity output interface card 3012 is used for connecting all channels of the analog quantity input board card of the tested device;
the digital quantity input interface card 3013 is used for connecting all channels of the digital quantity output board card of the tested device;
and the digital output interface card 3014 is used for connecting all channels of the digital input board card of the device to be tested.
In one example, the interface layer 301 contains a pre-formed cable.
In some possible implementations of the embodiment of the present application, as shown in fig. 3, the signal acquisition layer 102 may specifically include: analog input module 1021, analog output module 1022, digital input module 1023, and digital output module 1024;
the analog input module 1021 is connected with the analog input interface card through the integrated circuit board;
the analog output module 1022 is communicated with the analog output interface card through the integrated circuit board;
the digital quantity input module 1023 is communicated with the digital quantity input interface card through the integrated circuit board;
the digital output module 1024 communicates with a digital output interface card through an integrated circuit board.
It is understood that the signal transmission between the apparatus and the device under test provided by the present application may be realized through the interface layer 301 and the signal acquisition layer 102.
In some possible implementations of the embodiment of the present application, the analog input module 1021 corresponds to the analog input interface card 3011 one to one; the analog output modules 1022 correspond to the analog output interface cards 3012 one to one; the digital quantity input module 1023 is in one-to-one correspondence with the digital quantity input interface card 3013; the digital quantity output modules 1024 correspond to the digital quantity output interface cards 3014 one to one.
In one specific example, the analog input interface card 3011 is two; the analog quantity output interface cards 3012 are eight blocks; the digital quantity input interface card 3013 is ten blocks; the digital quantity output interface card 3014 is ten blocks;
the analog quantity input module 1021 is two; eight analog quantity output modules 1022 and ten digital quantity input modules 1023; the digital quantity output module 1024 is ten blocks.
In some possible implementation manners of the embodiment of the present application, as shown in fig. 4, the power control layer 302 may specifically include: an external power supply inlet port 3021, an air switch 3022, and a power switch 3023;
the input power supply is connected with the power supply conversion layer 103 through an external power supply inlet port 3021 and an air switch 3022; the power conversion layer 103 is connected to the signal processing layer 101 via a power switch 3023;
and a power conversion layer 103 for converting an input power into a power to supply power to the signal processing layer 101.
As an example, the input power is 220V ac power, and the power conversion layer 103 converts the 220V ac power into 24V dc power and supplies power to the signal processing layer 101 through the power switch 3023.
In some possible implementation manners of the embodiment of the present application, as shown in fig. 5, the signal processing layer 101 may specifically include: a power supply module 1011;
the power supply module 1011 is connected with the signal acquisition layer 102 through the power switch 3023 and the integrated circuit board 200, and is used for converting the power output by the power conversion layer 103 into a power supply for supplying power to the signal acquisition layer 102;
a power switch 3023 for controlling the supply of power to the signal processing layer 101 and the signal acquisition layer 102.
As an example, the power module 1011 converts the 24V dc power to 5V dc power to power the signal acquisition layer 102 via the power switch 3023 and the integrated circuit board 200.
In some possible implementations of the embodiment of the present application, as shown in fig. 6, the power switch 3023 may specifically include three shift positions: gear A, gear B and gear C;
in gear A, all power supplies are cut off;
the gear B is used for turning on the power supply of the signal processing layer 101 and turning off the power supply of the signal acquisition layer 102;
gear C, the power supply of the signal processing layer 101 and the power supply of the signal acquisition layer 102 are turned on.
It can be understood that, the embodiment of the present application may disconnect the signal acquisition layer 102 from the device under test without disconnecting the power supply of the signal processing layer 101, so as to replace the device under test. During replacement, the gear can only be set in the gear A and the gear B.
In some possible implementation manners of the embodiment of the present application, with continuing reference to fig. 5, the signal processing layer 101 may further include: computer module 1012, capacitance module 1013, and memory 1014;
In specific implementation, the computer is equipped with a Linux system, the quantity and trend script of the transmitted signals, the acquisition of the received signals and the script for comparing with the reference value can be imported into the computer module 1012 through the USB interface, the computer module 1012 sends an instruction to the signal acquisition layer 102 in the device through the integrated circuit board 200, and the signal acquisition layer 102 transmits the analog/digital signals (i.e. the test signals) to the device under test from the analog/digital output interface card designated by the interface layer 301 according to the instruction of the computer module 1012. The device under test performs logic operations according to the received signals and transmits the operation results to the interface layer 301 of the test apparatus. The computer module 1012 collects the received signal values, runs a comparison script, compares whether the test result is consistent with the expected result, automatically outputs a test conclusion, and stores the test result through the in-device memory 1014.
It can be understood that, when the test starts, the interface layer is connected to the signal channel of the device under test first, and the confirmation signal can be transmitted normally; and the number and trend scripts of the transmitted signals, the acquisition of the received signals and the scripts compared with the reference values are led into a signal processing layer through a USB interface, the internal communication of the device is confirmed to be normal, and then the test is started. In one example, the signal processing layer automatically outputs a test conclusion based on the operation result and the comparison script, compares whether the test result is consistent with an expected result, and stores the test result through the internal memory of the device.
The present application has been described in detail with reference to the drawings and examples, but the present application is not limited to the above examples, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application. The prior art can be used for all the matters not described in detail in this application.
Claims (9)
1. The utility model provides a signal channel verifying attachment suitable for nuclear power station industrial control system which characterized in that: the apparatus, comprising: the integrated circuit comprises a front cage, an integrated circuit board and a rear cage;
the front cage, comprising: the device comprises a signal processing layer, a signal acquisition layer and a power conversion layer; the rear cage, comprising: an interface layer and a power control layer;
the integrated circuit board is arranged between the front cage and the rear cage; the signal processing layer is connected with the signal acquisition layer through the integrated circuit board; the signal acquisition layer is connected with the interface layer through the integrated circuit board;
an input power supply supplies power to the signal processing layer through the power supply control layer and the power supply conversion layer one by one; the input power supply supplies power to the signal acquisition layer through the power supply control layer, the power supply conversion layer, the signal processing layer and the integrated circuit board one by one;
the interface layer is used for connecting a signal channel of the tested equipment;
the signal processing layer is used for controlling the signal acquisition layer to output a test signal to the tested device through the interface layer; and the interface layer and the signal acquisition layer are used for receiving the operation result fed back by the tested device according to the test signal.
2. The signal channel checking device suitable for the industrial control system of the nuclear power plant as claimed in claim 1, wherein: the interface layer includes: analog quantity input interface card, analog quantity output interface card, digital quantity input interface card and digital quantity output interface card;
the analog input interface card is used for connecting all channels of the analog output board card of the tested equipment;
the analog quantity output interface card is used for connecting all channels of the analog quantity input board card of the tested equipment;
the digital quantity input interface card is used for connecting all channels of the digital quantity output board card of the tested equipment;
and the digital output interface card is used for connecting all channels of the digital input board card of the tested equipment.
3. The signal channel checking device suitable for the industrial control system of the nuclear power plant as claimed in claim 2, wherein: the signal acquisition layer comprising: the device comprises an analog quantity input module, an analog quantity output module, a digital quantity input module and a digital quantity output module;
the analog input module is communicated with the analog input interface card through the integrated circuit board;
the analog quantity output module is communicated with the analog quantity output interface card through the integrated circuit board;
the digital quantity input module is communicated with the digital quantity input interface card through the integrated circuit board;
and the digital quantity output module is communicated with the digital quantity output interface card through the integrated circuit board.
4. The signal channel checking device suitable for the industrial control system of the nuclear power plant as claimed in claim 3, wherein:
the analog input module corresponds to the analog input interface cards one by one;
the analog quantity output modules correspond to the analog quantity output interface cards one to one;
the digital quantity input module corresponds to the digital quantity input interface card one by one;
and the digital quantity output module corresponds to the digital quantity output interface card one by one.
5. The signal channel checking device suitable for the industrial control system of the nuclear power plant as claimed in claim 3, wherein:
the number of the analog quantity input interface cards is two; eight analog output interface cards are provided; the digital quantity input interface cards are ten blocks; the number of the digital quantity output interface cards is ten;
the analog quantity input modules are two; eight analog quantity output modules, ten digital quantity input modules and ten digital quantity output modules.
6. The signal channel checking device suitable for the industrial control system of the nuclear power plant as claimed in claim 1, wherein: the power control layer includes: the air switch is connected with the power switch;
the input power supply is connected with the power supply conversion layer through the external power supply wire inlet and the air switch; the power supply conversion layer is connected with the signal processing layer through the power supply switch;
and the power supply conversion layer is used for converting the input power supply into a power supply for supplying power to the signal processing layer.
7. The signal channel checking device suitable for the industrial control system of the nuclear power plant as claimed in claim 6, wherein: the signal processing layer includes: a power supply module;
the power supply module is connected with the signal acquisition layer through the power switch and the integrated circuit board and is used for converting the power supply output by the power conversion layer into the power supply for supplying power to the signal acquisition layer;
the power switch is used for controlling power supply for the signal processing layer and the signal acquisition layer.
8. The signal path verification device suitable for the industrial control system of the nuclear power plant as claimed in claim 7, wherein: the power switch comprises three gears: gear A, gear B and gear C;
in gear A, all power supplies are cut off;
the gear B is used for switching on the power supply of the signal processing layer and switching off the power supply of the signal acquisition layer;
and a gear C for turning on the power supply of the signal processing layer and the power supply of the signal acquisition layer.
9. The signal channel checking device suitable for the industrial control system of the nuclear power plant as claimed in claim 6, wherein: the signal processing layer further comprises: a computer module, a capacitor module and a memory;
the computer module is connected with the capacitor module and the memory and comprises a computer, an RJ45 network interface, a DVI interface and two USB interfaces; the DVI interface can be externally connected with a display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122675725.9U CN216561521U (en) | 2021-11-03 | 2021-11-03 | Signal channel checking device suitable for industrial control system of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122675725.9U CN216561521U (en) | 2021-11-03 | 2021-11-03 | Signal channel checking device suitable for industrial control system of nuclear power station |
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| Publication Number | Publication Date |
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| CN216561521U true CN216561521U (en) | 2022-05-17 |
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| CN202122675725.9U Active CN216561521U (en) | 2021-11-03 | 2021-11-03 | Signal channel checking device suitable for industrial control system of nuclear power station |
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2021
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