Conditioning box system for testing domestic nuclear power DCS single board

Abstract

The utility model discloses a conditioning box system for testing a domestic nuclear power DCS single board, and relates to the technical field of DCS single board testing. The conditioning box system for testing the domestic nuclear power DCS single board comprises a machine box, a machine box panel is installed on the outer wall of the front side of the machine box, a conditioning card module, a bottom plate, a function switching array card, a power source bottom plate array card and a J connector set are arranged in the machine box, and a chip board card burning simulation interface is arranged on the outer side of the machine box panel; the conditioning card module comprises a computing power card, an AI-AO conditioning card, a DI-DO conditioning card, an RTD conditioning card, a TC-PI conditioning card and an IOP conditioning card. According to the utility model, through the accurate detection module and the reasonable detection process, the defect that misjudgment is easy to occur in manual detection is overcome, and the problems on the PCBA single board from macroscopic circuit connection conditions to microscopic component performance parameters and the like can be accurately detected; it is guaranteed that each nuclear power card PCBA single board put into use meets the high-quality and high-performance nuclear power application standard, and the detection precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to DCS single board test technical field especially relates to a kind of for the conditioning box system of domestic nuclear power DCS single board test. BACKGROUND

[0002] In the field of nuclear power, various control and monitoring systems rely on a large number of nuclear power cards to ensure the safe and stable operation of nuclear power plants. AI, AO, DI, DO, RTD, PI, TC, and IOP are the core components of nuclear power cards, and their performance and quality directly affect the normal operation of the entire card.

[0003] Traditional detection of nuclear power card PCBA single board often relies on manual detection combined with some simple detection instruments, which has many drawbacks. Nuclear power card PCBA inspection is manually detected at each point, which is inefficient and easily affected by subjective factors of the tester. For example, manual mixing cannot distinguish between misjudgment, high error rate, and other potential component performance problems. Manual mixing cannot distinguish between misjudgment, high error rate, and other potential component performance problems. MCU and FPGA program burning are complex, and existing devices cannot test communication functions, test data records need to be manually written in reports, and cannot be mass-produced. In addition, with the continuous expansion of the scale of nuclear power plant construction, the demand for nuclear power cards is increasing, and traditional detection methods cannot meet the actual needs of fast, efficient, and accurate detection. Therefore, there is an urgent need for a device that can automatically and accurately detect nuclear power card PCBA single board to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a kind of for the conditioning box system of domestic nuclear power DCS single board test, solve the technical problem proposed in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of for the conditioning box system of domestic nuclear power DCS single board test, including case, the front side outer wall of the case is equipped with case panel, the inside of the case is provided with conditioning card module, bottom plate, function switching array card, power supply bottom plate array card, J303 connector group, the outside of the case panel is provided with chip board card burning simulation interface;

[0006] The conditioning card module includes computing power card, AI-AO conditioning card, DI-DO conditioning card, RTD conditioning card, TC-PI conditioning card, IOP conditioning card, and base conditioning card.

[0007] Preferably, the computing power card core is a high-performance MCU based on the ARM Cortex-M7 core as the main chip, the computing power card is integrated with Profinet, Modbus TCP and RTU communication functions, and combines a real-time operating system and a data analysis engine, so that efficient data processing and analysis can be realized at the device end, the communication protocols enable the terminal to be seamlessly connected with different industrial control systems (such as DCS, mechanical arm, industrial camera, etc.), and rapid transmission and analysis of data are realized, and in the conditioning box, the communication between the upper computer and the lower conditioning card and array card is mainly used for function scheduling.

[0008] Preferably, the AI-AO conditioning card, DI-DO conditioning card, RTD conditioning card, TC-PI conditioning card, IOP conditioning card and base conditioning card provide 24V, 5V and 3.3V power supply for the measured board card, monitor -15~+15V output voltage, multi-channel open & short circuit detection, 4~20mA injection and acquisition function, I2C, SPI communication detection function, multi-channel precision resistance array source, TCP, UDP, RS485 &422 communication detection, RJ45 network differential line test function, dry contact, pulse input, output function, MCU, FPGA program automatic burning, board card LED detection function.

[0009] Preferably, the base plate, the function switching array card and the power supply base plate array card switch the required PIN pins and the corresponding conditioning card power supply according to the type of the computing power card obtained from the measured board card.

[0010] Preferably, the J303 connector group is used for connecting the needle bed, and the one side of the case is provided with a plug-in interface for the J303 connector group.

[0011] Preferably, the chip board card burning simulation interface is used for informing the upper computer of burning the MCU and FPGA program of the measured board card.

[0012] Preferably, the two side outer walls of the case are provided with heat dissipation holes, and the front side outer wall of the case is fixedly connected with a handle, and the handle is symmetrically arranged outside the case.

[0013] Compared with the related art, the conditioning box system for testing the domestic nuclear power DCS single board has the following beneficial effects:

[0014] 1. The conditioning box system for testing the domestic nuclear power DCS single board realizes completely independent and controllable online board card detection of domestic chips, and completes the test functions of various nuclear power card PCBAs such as AI, AO, DI, DO, TC, PI, RTD and IOP.

[0015] 2. The utility model provides a kind of for the conditioning box system of domestic nuclear power DCS single board test, based on the high accuracy image recognition algorithm of complex environment under the card emulation bionics vision detection, accurate positioning and troubleshooting board card failure, realize intelligent automatic disposal.

[0016] 3. The utility model provides a kind of for the conditioning box system of domestic nuclear power DCS single board test, with domestic chip, network communication module with network security is designed by self-study algorithm, reduce the dependence of foreign network chip, improve network communication security improve the reliability of equipment, can also reduce cost in device production.

[0017] 4. The utility model provides a kind of for the conditioning box system of domestic nuclear power DCS single board test, can automatically detect the device of nuclear power card piece PCBA single board, without excessive manual intervention, can quickly complete each performance index detection of single board, greatly shorten detection cycle, meet the production rhythm requirement of nuclear power station for a large number of nuclear power card piece fast use, improve detection efficiency.

[0018] 5. The utility model provides a kind of for the conditioning box system of domestic nuclear power DCS single board test, through accurate detection module and reasonable detection process, overcome the defect that manual detection is prone to misjudgment, can accurately detect the problem existing in many aspects from macroscopic circuit connection condition to microscopic component performance parameter on PCBA single board, guarantee each nuclear power card piece PCBA single board put into use meets high quality, high performance nuclear power application standard, improve detection precision. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is part structure schematic drawing of the utility model;

[0020] Figure 2 It is overall structure schematic drawing of the utility model;

[0021] Figure 3 It is side view structure schematic drawing of the utility model;

[0022] Figure 4 It is detection flow chart of the utility model.

[0023] In the drawing: 1, case panel;2, conditioning card module;3, bottom plate;4, function switching array card;5, power supply bottom plate array card;6, J303 connector group;7, case;8, chip board card burning simulation interface;9, heat dissipation hole;10, handle. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0025] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of for the conditioning box system of domestic nuclear power DCS single board test, including case 7, case 7's front side outer wall is equipped with case panel 1, the inside of case 7 is provided with conditioning card module 2, bottom plate 3, function switching array card 4, power supply bottom plate array card 5, J303 connector group 6, the outside of case panel 1 is provided with chip board card burning emulation interface 8;

[0026] Conditioning card module 2 includes computing power card, AI-AO conditioning card, DI-DO conditioning card, RTD conditioning card, TC-PI conditioning card, IOP conditioning card, base conditioning card.

[0027] Among them, computing power card core is using the high-performance MCU based on ARM Cortex-M7 kernel as main chip, computing power card is integrated Profinet, ModbusTCP and RTU communication function, and combines real-time operating system and data analysis engine, can realize efficient data processing and analysis in equipment end, these communication protocols make terminal can be seamlessly connected with different industrial control systems such as DCS, mechanical arm, industrial camera etc., realize the rapid transmission and analysis of data, mainly used for host computer communication and function scheduling between lower computer conditioning card and array card in conditioning box.

[0028] Among them, AI-AO conditioning card, DI-DO conditioning card, RTD conditioning card, TC-PI conditioning card, IOP conditioning card, base conditioning card provide 24V, 5V, 3.3V power supply for measured board card, monitor-15~+15V output voltage, multiway open circuit & short circuit detection, 4~20mA injection and acquisition function, I2C, SPI communication detection function, multiway precision resistance array source, TCP, UDP, RS485&422 communication detection, RJ45 network differential line test function, dry contact, pulse input, output function, MCU, FPGA program automatic burning, board card LED detection function.

[0029] Among them, bottom plate 3, function switching array card 4, power supply bottom plate array card 5 switch required PIN foot and corresponding conditioning card power on according to computing power card to get the type of measured board card.

[0030] Among them, the J303 connector group 6 is used for connecting the needle bed, and one side of the case 7 is provided with a plug-in interface of the J303 connector group 6.

[0031] Among them, the chip board card burning simulation interface 8 is used for informing the host computer to burn the measured board card MCU and FPGA program.

[0032] In the embodiment, the power card controls the industrial camera to identify the board card type, compares the identified board card with the currently selected board card type, sends a command to the power array card through the rear, switches and turns on the corresponding conditioning card power supply, PIN point and J303 connector docking, powers on the corresponding conditioning card to detect whether the measured board card has a power supply short circuit, if not, powers the measured board card, after power supply, downloads MUC and FPGA program, after downloading, automatically restarts the measured board card, and establishes a communication channel, after the channel is established, tests the functions of the board card PIN point in turn, feeds back the test results to the power card, the power card uploads each test result to the host computer and saves the test log, and then starts a new round of test.

[0033] The utility model relates to a kind of edge computing terminal power card of MCU based on, AO, AI, DO, DI, IOP, TC, PI, RTD and multiple conditioning cards such as such are designed by precise layout design and can share a set of conditioning box and needle bed detection system;The design uses high-performance microprocessor STM32 and GD32 dual redundancy, Profinet, ModbusTCP, RTU communication function, and combines real-time operating system and data analysis engine, can realize efficient data processing and original signal generation source technology and pressure flow following analysis technology in equipment end, guarantee the accuracy and stability of test data in board card test;

[0034] The function array of conditioning card and precision control: each submodule in the conditioning card is switched by array according to the measured board card type, and the key of PCBA single board is accurately detected by high-precision measurement technology. For example, micro-resistance measurement technology needs to achieve sufficient resolution when detecting circuit connectivity, so as to find small short circuit or open circuit condition;In the performance detection of components, the self-designed measurement circuit and software algorithm for measuring various types of components directly affect the accuracy of component performance judgment.

[0035] Among them, the two sides of the case 7 are provided with heat dissipation holes 9, and the front side of the case 7 is fixedly connected with a handle 10, which is symmetrically arranged outside the case 7.

[0036] In the embodiment, the two side walls of the cabinet 7 are provided with heat dissipation holes 9, which can effectively improve the heat dissipation effect inside the cabinet. Through the heat dissipation holes 9, the heat generated inside the cabinet 7 can be more smoothly discharged, preventing the performance of the equipment from being reduced or damaged due to overheating, thereby prolonging the service life of the equipment. The handle 10 makes the cabinet 7 more convenient to move or carry when needed.

[0037] Working principle: first, the computing card controls the industrial camera to identify the board card type, compares the identified board card with the currently selected board card type, sends instructions to the power array card through the rear, switches and turns on the corresponding conditioning card power, PIN point and J303 connector docking, the corresponding conditioning card power-on detects whether the measured board card has a power short circuit, if not short-circuit, power supply to the measured board card, after power supply, download MUC and FPGA program, after completion of download, automatically restart the measured board card, and establish a communication channel, after the channel is established, test the functions of the board card PIN point in turn, after the test is completed, feedback the result to the computing card, the computing card uploads each test result to the upper computer and saves the test log, and then a new round of test is started.

[0038] The utility model relates to a kind of edge computing terminal computing power card adds AO, AI, DO, DI, IOP, TC, PI, RTD and multiple conditioning cards such as RTD based on MCU are designed by precise layout design and can share a set of conditioning box and needle bed detection system;The design uses high-performance microprocessor STM32 and GD32 double redundancy, Profinet, ModbusTCP, RTU communication function, and combines real-time operating system and data analysis engine, can realize efficient data processing in equipment end and original signal generation source technology and pressure flow following analysis technology, guarantee the accuracy and stability of test data in board card test.

[0039] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and utility model concept of the utility model, equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A conditioning box system for testing domestically produced nuclear power DCS single boards, comprising a chassis (7), characterized in that: The front outer wall of the chassis (7) is fitted with a chassis panel (1). The chassis (7) contains a conditioning card module (2), a base plate (3), a function switching array card (4), a power supply base plate array card (5), and a J303 connector group (6). The outer side of the chassis panel (1) is provided with a chip board programming and simulation interface (8). The conditioning card module (2) includes a computing power card, an AI-AO conditioning card, a DI-DO conditioning card, an RTD conditioning card, a TC-PI conditioning card, an IOP conditioning card, and a base conditioning card.

2. The conditioning box system for testing domestically produced nuclear power DCS single boards according to claim 1, characterized in that: The core of the computing card uses a high-performance MCU based on the ARM Cortex-M7 core as the main chip.

3. A conditioning box system for testing domestically produced nuclear power DCS single boards according to claim 1, characterized in that: The AI-AO conditioning card, DI-DO conditioning card, RTD conditioning card, TC-PI conditioning card, IOP conditioning card, and base conditioning card provide 24V, 5V, and 3.3V power supplies to the board under test, monitor -15V to +15V output voltage, perform multi-channel open and short circuit detection, 4-20mA injection and acquisition functions, I2C and SPI communication detection functions, multi-channel precision resistor array source, TCP, UDP, RS485 & 422 communication detection, RJ45 network differential line testing functions, dry contact, pulse input and output functions, automatic MCU and FPGA program burning, and board LED detection functions.

4. A conditioning box system for testing domestically produced nuclear power DCS single boards according to claim 1, characterized in that: The J303 connector group (6) is used to connect the needle bed, and the side of the chassis (7) is provided with a plug interface for the J303 connector group (6).

5. A conditioning box system for testing domestically produced nuclear power DCS single boards according to claim 1, characterized in that: The outer walls of both sides of the chassis (7) are provided with heat dissipation holes (9), and the front outer wall of the chassis (7) is fixedly connected with a handle (10), which is symmetrically arranged on the outside of the chassis (7).

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