Automatic verification system and method for functional module of power control system
Through the automatic verification system and fault diagnosis knowledge base, the automatic verification and intelligent fault diagnosis of the power control system functional modules have been realized, which has solved the problems of low efficiency, difficulty in ensuring accuracy and lack of management in the existing technology, and improved the maintenance quality and data traceability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA STATE SHIPBUILDING CORP LTD RESEARCH INSTITUTE 719
- Filing Date
- 2026-02-09
- Publication Date
- 2026-05-01
AI Technical Summary
In the base-level maintenance of power control systems, existing technologies rely on manual verification of functional modules, which is inefficient, difficult to ensure accuracy, and fault diagnosis relies on experience with poor repeatability. Furthermore, the verification process lacks traceability and is not well-managed.
An automatic verification system was designed, including a main control and data processing unit, an analog I/O module, an isolated digital I/O module, a digital I/O module, a communication module, a verification signal conversion module interface device, and a power supply unit. It realizes the automatic verification of functional modules and is equipped with a fault diagnosis knowledge base, which has the function of a fault diagnosis expert system.
It achieves automated verification of functional modules, improves verification efficiency, has intelligent fault diagnosis capabilities, increases repair success rate, and provides full lifecycle data traceability and management support.
Smart Images
Figure CN121956971A_ABST
Abstract
Description
[0001] This application claims priority to Chinese Patent Application No. 2025115873028, filed on November 3, 2025, entitled "Automatic Verification System and Method for Functional Modules of Power Control System", the entire contents of which are incorporated herein by reference. Technical Field
[0002] This invention relates to the field of module verification technology, and in particular to an automatic verification system and method for functional modules of a power control system. Background Technology
[0003] Power control systems, such as the integrated control systems of HDL devices in complex equipment like ships and heavy machinery, rely on the normal operation of a large number of internal functional modules for reliable operation. These modules are diverse and can be categorized by function into data acquisition modules (such as bridge circuit converter boards EBR and isolation amplifier conversion boards ISO), communication modules (such as communication adapter boards TEL), display modules (such as digital tube display boards SHOW), and various DC power supply modules (DY series), totaling more than twenty types.
[0004] During long-term operation, these functional modules may gradually deteriorate or even malfunction due to factors such as component aging, marine atmospheric corrosion, vibration and shock, or transient electrical stress, directly threatening the safety and stability of the entire power control system. Therefore, regularly performing base-level maintenance on faulty modules to restore their design performance is a crucial step in ensuring equipment reliability.
[0005] Currently, in base-level maintenance scenarios, the verification of the aforementioned functional modules faces the following main technical challenges:
[0006] (1) Verification relies on manual methods, which is inefficient;
[0007] (2) Difficulty in ensuring accuracy and incomplete traceability chain;
[0008] (3) Fault diagnosis relies on experience and has poor repeatability;
[0009] (4) The verification process lacks traceability and management is not standardized;
[0010] Therefore, there is an urgent need for a dedicated verification system that can automate the entire process from signal excitation and data acquisition to result judgment, in order to solve the many drawbacks of the traditional base-level maintenance model and improve support efficiency and maintenance quality. Summary of the Invention
[0011] In view of this, the present invention provides an automatic verification system for functional modules of a power control system, which can automatically verify multiple functional modules in the power control system.
[0012] The technical solution of the present invention is: an automatic verification system for functional modules of a power control system, comprising: a main control and data processing unit, an analog I / O module, an isolated digital I / O module, a digital I / O module, a communication module, a verification signal conversion module interface device, and a power supply unit for power supply;
[0013] The main control and data processing unit selects and enables analog I / O modules, isolated digital I / O modules, digital I / O modules, or communication modules according to the type of the functional module being verified. It controls these modules to output excitation signals to the functional module being verified and collects the response signals from the module being verified. The main control and data processing unit also processes the response signals generated after the functional module being verified is excited according to a set verification algorithm and performs a pass / fail determination based on set verification standards.
[0014] The verification signal conversion module interface device is used to carry the function module being verified and the corresponding signal conversion circuit; the verification signal conversion module interface device is electrically connected to the analog I / O module, the isolated digital I / O module, the digital I / O module, and the communication module respectively.
[0015] In a preferred embodiment of the present invention, the main control and data processing unit internally stores a fault diagnosis knowledge base and has the function of a fault diagnosis expert system.
[0016] As a preferred embodiment of the present invention, the verification signal conversion module interface device is provided with at least two functional interface boxes for carrying different types of verified functional modules and corresponding signal conversion circuits.
[0017] The function module being verified is detachably installed in the function interface box corresponding to the verification signal conversion module interface device.
[0018] In a preferred embodiment of the present invention, when the function module being verified is a function module whose input or output signal is an analog quantity, the main control and data processing unit controls the analog quantity I / O module to output an analog quantity excitation signal to the function module being verified through the verification signal conversion module interface device, and collects the analog quantity response signal of the function module being verified.
[0019] In a preferred embodiment of the present invention, when the functional module to be verified is a bridge circuit conversion module in a power control system, the main control and data processing unit controls the isolated digital I / O module to output an excitation signal to the functional module to be verified through the verification signal conversion module interface device; and controls the analog I / O module to collect the response signal of the functional module to be verified.
[0020] In a preferred embodiment of the present invention, when the function module being verified is a function module whose input or output signals are digital logic quantities, the main control and data processing unit controls the digital I / O module to output a digital excitation signal to the function module being verified, and collects the digital response signal output by the function module being verified.
[0021] In a preferred embodiment of the present invention, when the functional module being verified is a functional module with a serial communication interface, the main control and data processing unit controls the communication module to output an excitation signal to the functional module being verified through the verification signal conversion module interface device; and controls the digital I / O module to collect the response signal of the functional module being verified.
[0022] In a preferred embodiment of the present invention, the power supply unit includes: an AC purified and regulated power supply, a high-precision DC regulated power supply, and an internal power supply.
[0023] The AC purified and regulated power supply is used to provide clean AC input to the internal power supply 2 and the high-precision DC regulated power supply;
[0024] The internal power supply is used to convert the AC power input from the AC purified and regulated power supply into various low-voltage DC power required for the normal operation of the components inside the main control chassis.
[0025] The high-precision DC regulated power supply is used to provide DC operating voltage for the verification signal conversion interface device and the functional module being verified.
[0026] As a preferred embodiment of the present invention, it further includes a human-computer interaction and output unit; the human-computer interaction and output unit is connected to the main control and data processing unit and is used to realize human-computer interaction and result output.
[0027] Furthermore, based on the aforementioned verification device, the present invention also provides an automatic verification method for functional modules of a power control system, comprising the following steps:
[0028] S1. Power-on and Self-diagnosis:
[0029] When the verification system is powered on, the main control and data processing unit automatically runs a self-diagnostic program to detect the working status of the analog I / O modules, isolated digital I / O modules, digital I / O modules, communication modules, and internal power supply within the system. If the self-diagnosis fails, the process terminates; if the self-diagnosis passes, the process continues.
[0030] S2. Verify task configuration:
[0031] Select the type of functional module to be verified in this validation;
[0032] S3. Execute the corresponding automatic verification program:
[0033] The main control and data processing unit calls and executes the pre-stored automatic verification program corresponding to the function module being verified, based on the type of the function module being verified selected in S2. It controls the analog I / O module, isolated digital I / O module, digital I / O module or communication module to output excitation signals to the function module being verified, so as to obtain the response signal of the function module being verified.
[0034] S4. Data Processing and Result Determination:
[0035] The main control and data processing unit processes the response data collected in S3 according to the set verification algorithm corresponding to the currently verified functional module, and automatically determines whether the verified functional module is "qualified" or "unqualified" according to the preset tolerance: that is, if the error exceeds the preset tolerance, it is determined to be "unqualified" and proceeds to step S5; if the error is within the preset tolerance, it is determined to be "qualified" and proceeds directly to step S6.
[0036] S5. Intelligent Fault Diagnosis and Guidance:
[0037] If the verification result is "unqualified", the main control and data processing unit calls its internally stored fault diagnosis knowledge base and starts the intelligent diagnosis logic;
[0038] S6. Data Archiving and Report Output:
[0039] The main control and data processing unit will associate and store all the original data, processing results, judgment conclusions and fault diagnosis information of this verification to an internal database or external storage device.
[0040] S7. Verification complete:
[0041] Once the single verification process is complete, the currently verified functional module is removed.
[0042] Beneficial effects:
[0043] (1) The automatic verification system of the present invention can automatically verify multiple functional modules in the power control system, which greatly improves the verification efficiency and reduces the dependence on the skills of operators.
[0044] (2) In this invention, a fault diagnosis knowledge base is pre-stored in the main control and data processing unit, which enables it to have the function of a fault diagnosis expert system and realize intelligent fault diagnosis; it can quickly locate faults to the component level and provide maintenance guidance, effectively solving the problem of fault diagnosis relying on personal experience and improving the maintenance success rate.
[0045] (3) The verification system in this invention can cover the verification requirements of various functional modules, including various analog quantities, digital quantities, power supply and communication modules, and has strong versatility; therefore, it has strong versatility and flexibility.
[0046] (4) The present invention has complete data traceability: all verification data and results are automatically stored and generated into a standard report, realizing the traceability and management of performance data throughout the entire life cycle, providing support for quality analysis and decision-making. Attached Figure Description
[0047] Figure 1 This is a block diagram of the overall structure of the automatic verification system of the present invention;
[0048] Figure 2 This is a flowchart of the automatic verification method of the present invention.
[0049] The components are as follows: 1-Main control chassis, 2-Power supply, 3-Flat panel display, 4-Printer, 5-Motherboard, 6-Analog I / O module, 7-Isolated digital I / O module, 8-Digital I / O module, 9-Communication module, 10-Verification signal conversion module interface device, 11-Verified function module, 12-High-precision DC regulated power supply, 13-AC purified regulated power supply. Detailed Implementation
[0050] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.
[0051] Example 1:
[0052] This embodiment provides an automatic verification system for functional modules of a power control system, which can automatically verify each functional module in the power control system to ensure the stable operation of the power control system.
[0053] like Figure 1 As shown, the automatic verification system includes: a main control and data processing unit, an analog I / O module 6, an isolated digital I / O module 7, a digital I / O module 8, a communication module 9, a verification signal conversion module interface device 10, and a power supply unit for power supply.
[0054] The main control and data processing unit internally stores automatic verification programs and data processing logic corresponding to various functional modules being verified (here, "functional modules" refers to the functional modules of the power control system). The main control and data processing unit interacts with analog I / O module 6, isolated digital I / O module 7, digital I / O module 8, and communication module 9 via an internal bus to exchange data and control signals.
[0055] The automatic verification program is used to control the execution of the verification process of the corresponding functional module. Specifically, the automatic verification program is called at the beginning of the verification. Based on the type of the functional module 11 being verified, it determines the hardware unit that needs to be started (the hardware unit in the verification system) and issues corresponding control instructions to these hardware units so that they can accurately perform the verification process.
[0056] The data processing logic is the verification algorithm corresponding to the verified functional module 11. It is used to process (calculate or transform) the original response data generated after the verified functional module 11 is excited, that is, to process the response signal generated after the verified functional module 11 is excited according to the set corresponding verification algorithm, and to make a qualification judgment according to the set standard, that is, to give the verification result as "qualified" or "unqualified".
[0057] As an example, the main control and data processing unit also stores a fault diagnosis knowledge base, enabling the detection system to function as a fault diagnosis expert system and achieve intelligent fault diagnosis. When the verification result is "unqualified," the main control and data processing unit calls its internally stored fault diagnosis knowledge base to analyze the channel or suspected component where the fault is located, and derives the cause of the fault and specific repair suggestions based on the knowledge base analysis.
[0058] As an example: for the bridge converter module in the power control system, its dedicated data processing logic is a scaling transformation and nonlinear correction algorithm based on the temperature-resistance characteristic curve of platinum resistance thermometer; for the isolation amplifier conversion module in the power control system, its dedicated data processing logic is a linearity and accuracy verification algorithm; for the digital quantity and communication module in the power control system, its dedicated data processing logic is a logic function verification method; for the DC power supply module in the power control system, its dedicated data processing logic is a load regulation and accuracy measurement method. All of the above algorithms or methods adopt corresponding algorithms or methods in the existing technology.
[0059] The main control and data processing unit selects and enables analog I / O module 6, isolated digital I / O module 7, digital I / O module 8 or communication module 9 according to the type of the function module 11 being verified, controls the analog I / O module 6, isolated digital I / O module 7, digital I / O module 8 or communication module 9 to output excitation signals to the function module 11 being verified, and collects the response signals of the function module 11 being verified.
[0060] The verification signal conversion module interface device 10 is electrically connected to the analog I / O module 6, the isolated digital I / O module 7, the digital I / O module 8, and the communication module 9, respectively. The verification signal conversion module interface device 10 internally has at least two functional interface boxes for housing different types of verified functional modules 11 and their corresponding signal conversion circuits. The verified functional module 11 establishes an electrical connection with the main control and data processing unit through its corresponding signal conversion circuit (either through the analog I / O module 6, the isolated digital I / O module 7, the digital I / O module 8, or the communication module 9).
[0061] As an example, the verification signal conversion module interface device 10 internally includes two functional interface boxes: a first interface box and a second interface box. The first interface box houses signal conditioning functional modules (such as isolation amplification and conversion, bridge circuit conversion) and corresponding signal conversion circuits (such as ISO-JY boards and EBR-JY boards). The second interface box houses power supply and digital communication functional modules and provides corresponding AC input and signal conversion circuits (such as DY-JY boards). These signal conversion circuits enable precise conversion of various signal types, including voltage-to-current, voltage-to-resistance, signal isolation, and conditioning.
[0062] As an example, the aforementioned signal conversion circuit undergoes overall calibration before use to improve testing accuracy. Based on the high-precision board and the dedicated signal conversion circuit that has undergone overall calibration, the system verification results are reliable, achieving both high precision and high reliability.
[0063] As an example, the function module 11 being verified is detachably installed in the function interface box corresponding to the verification signal conversion module interface device 10.
[0064] As an example, the main control chassis 1 is set as the carrier and core control structure of the verification system. It contains a motherboard 5 and a baseboard with a multi-function slot. The main control and data processing unit is integrated on the motherboard 5, while the analog I / O module 6, isolated digital I / O module 7, digital I / O module 8 and communication module 9 are directly plugged into the corresponding slots on the baseboard and exchange data with the motherboard 5 through the internal bus of the baseboard.
[0065] Analog I / O module 6 is the core of the analog signal processing in this verification system, applicable to all functional modules 11 whose input or output signals are analog quantities. Applicable verification objects include, but are not limited to, isolation amplification and conversion modules, bridge converter modules, DC power supply modules, and A / D conversion modules in power control systems. Analog I / O module 6 is electrically connected to the functional module 11 under verification via verification signal conversion module interface device 10, capable of outputting analog excitation signals to the functional module 11 under verification and acquiring the analog response signals of the functional module 11 under verification.
[0066] Taking the ISO-I type isolation amplifier converter board as an example, the verification process is as follows: The main control and data processing unit runs an automatic verification program for the ISO-I type isolation amplifier converter board; at this time, the main control and data processing unit outputs a digital instruction to generate the corresponding excitation signal. For example, if the verification program needs to generate a 12mA current, according to the corresponding linear conversion relationship, the D / A channel needs to output a 5V voltage as an excitation signal. This digital instruction is sent to the D / A section of the analog I / O module 6 through the internal bus. After receiving the digital instruction, the D / A section of the analog I / O module 6 outputs a precise 5.000V DC voltage on its designated channel. This voltage signal is transmitted through a cable to the ISO-JY dedicated converter board (i.e., the corresponding signal conversion circuit) in the verification signal conversion interface device 10. The ISO-JY dedicated converter board is used to linearly convert the 5.000V DC voltage into a 12.000mA current output. A 12.00mA current is applied to the input of the ISO-I type isolation amplifier converter board being verified. The ISO-I type isolation amplifier converter board operates normally, performing isolation and amplification conversion, and then generates a corresponding voltage signal at its output as a response signal. This voltage signal is output by the ISO-I type isolation amplifier converter board and returned to the A / D section of the analog I / O module 6 via the verification signal conversion interface device 10. The A / D section of the analog I / O module 6 converts this analog voltage signal into a digital value and sends it to the main control and data processing unit. At this time, the main control and data processing unit calls the dedicated data processing logic for the isolation amplifier converter module to determine whether the acquired voltage value (e.g., 4.998V, i.e., the voltage signal generated after the ISO-I type isolation amplifier converter board is excited) is within the allowable error range (e.g., ±0.5%) of the theoretical value (5.000V). Based on this, the ISO-I type isolation amplifier converter board is determined to be qualified or unqualified: if it is within the allowable error range, the verification result is determined to be "qualified"; otherwise, the verification result is determined to be "unqualified".
[0067] The isolated digital I / O module 7 is applicable to various bridge circuit conversion modules (such as EBR-I to EBR-IV) in power control systems, including but not limited to these. The isolated digital I / O module 7 selects a precision standard resistor by driving a relay on the corresponding dedicated circuit conversion board (such as the EBR-JY board) in the verification signal conversion interface device 10, providing the required analog resistance signal to the functional module 11 being verified (i.e., the bridge circuit conversion module being verified).
[0068] Taking the EBR-III bridge converter board as an example, the verification process is as follows: The main control and data processing unit runs an automatic verification program for the EBR-III bridge converter board and determines that the "150℃" point needs to be tested. This point corresponds to a specific precision resistance value (such as 157.33Ω). After the automatic verification program starts, the main control and data processing unit sends a specific combination of switching quantities as a control command to the isolated digital I / O module 7 through the internal bus. After receiving the control command, the isolated digital I / O module 7 drives a relay to close its output channel. This relay is located on the EBR-III-JY dedicated circuit conversion board of the verification signal conversion interface device 10. This EBR-III-JY dedicated circuit conversion board is responsible for connecting the 157.33Ω precision resistor corresponding to "150℃" into the test circuit. The isolation design ensures electrical isolation between the internal circuit and the external relay coil drive circuit, improving anti-interference and safety. At this point, a 157.33Ω precision standard resistance signal simulating a 150℃ platinum resistance is applied as an excitation signal to the input of the verified functional module 11 (i.e., the verified EBR-III bridge converter board). Subsequently, the main control and data processing unit controls the analog I / O module 6 to synchronously acquire the voltage signal (i.e., the response signal) output by the verified EBR-III bridge converter board after converting this standard resistance signal. The analog I / O module 6 converts the acquired voltage signal into a digital quantity and returns it to the main control and data processing unit. At this time, the main control and data processing unit calls the dedicated data processing logic for the bridge converter module. This data processing logic calculates the corresponding temperature measurement value based on the acquired voltage value and compares it with the theoretical value (150℃). If the error is within the allowable range (e.g., ±0.5%), the verification result is determined to be "qualified"; otherwise, the verification result is determined to be "unqualified".
[0069] As an example, the input section of the isolated digital I / O module 7 can simultaneously read the "relay action confirmation" status signal to ensure that the switching action has been executed correctly; this status signal can be sent back to the main control and data processing unit for process safety interlocking.
[0070] The digital I / O module 8 serves as a general-purpose digital logic signal interface for this verification system. It is suitable for all functional modules under verification whose input or output signals are digital logic quantities, such as IO2 digital display point selection decoders. The digital I / O module 8 is electrically connected to the functional module under verification 11 through the verification signal conversion module interface device 10, and can output digital excitation signals to the functional module under verification 11 and / or acquire digital response signals output by the functional module under verification 11.
[0071] Taking the IO2 digital display point selection decoder board as an example, the verification process is as follows: The main control and data processing unit runs an automatic verification program for the IO2 digital display point selection decoder board and determines the test "point selection 125"; the main control and data processing unit controls the output part of the digital I / O module 8 to send three sets of digital logic signals through the internal bus, representing the BCD code or other encoding of the units digit "5", tens digit "2", and hundreds digit "1". These digital logic signals (0V or 5V level) are used as excitation signals and loaded onto the input address lines of the IO2 digital display point selection decoder board being verified through the verification signal conversion module interface device 10. The internal decoding circuit of the IO2 digital display point selection decoder board works and generates corresponding strobe signals as output signals at its output terminal. These output signals are routed to the input part of the digital I / O module 8 as response signals through the verification signal conversion module interface device 10. The digital I / O module 8 transmits the read output signal status (high / low) back to the main control and data processing unit. The main control and data processing unit calls the dedicated data processing logic (a set of digital logic truth tables) for the IO2 digital display point selection decoder board to compare whether the "sent point selection code" and the "read output status" are consistent, thereby determining whether the point selection function of the IO2 digital display point selection decoder board is normal: if they match completely, it indicates that the point selection function is normal and its verification result is "qualified"; otherwise, it indicates that the point selection function is abnormal and its verification result is "unqualified".
[0072] Communication module 9 is used to realize data interaction with the function module 11 under verification, which has a serial communication interface; that is, it is applicable to function modules under verification that have a serial communication interface. A typical verification application is the data transmission device in a power control system, which includes a CSCX serial interface board, a CSZB main board, and a CSBX parallel interface board. Communication module 9 is electrically connected to the function module 11 under verification through the verification signal conversion module interface device 10.
[0073] When the function module 11 being verified is a data transmission device, the verification process is as follows: The main control and data processing unit runs an automatic verification program for the data transmission device. At this time, the main control and data processing unit generates a known test data (e.g., 0x55, 0xAA, 0x11, 0xEE) and sends it to the communication module 9 (e.g., PCI-1612CU). The communication module 9 converts the parallel data into a serial data stream according to the preset communication parameters (baud rate, data bits, parity bits, etc.). The serial data stream is sent out as the original test data (i.e., excitation signal) through the output port of the communication module 9 and loaded into the receiving end of the CSCX serial interface board in the data transmission device being verified via the verification signal conversion module interface device 10.
[0074] The internal processing flow of the data transmission device being verified is as follows: the CSCX serial interface board receives the serial data stream and converts it into parallel data; the parallel data is transmitted to the CSZB host board through the backplane bus; the CSZB host board processes the parallel data and writes it into the dual-port RAM shared with the CSBX parallel interface board or sends it directly to the CSBX parallel interface board through the bus.
[0075] The main control and data processing unit controls the digital I / O module 8 to read processed parallel data (response signal) from the data output port of the CSBX parallel interface board in the data transmission device being verified through the verification signal conversion module interface device 10. The digital I / O module 8 transmits the read data status back to the main control and data processing unit (in this process, the role of the digital I / O module 8 is to "read parallel data", not to "send test data"). The main control and data processing unit calls the dedicated data processing logic for the data transmission device; the core of this dedicated data processing logic is a data comparison algorithm: the original test data output through the communication module 9 is compared byte by byte with the returned data read from the CSBX parallel interface board through the digital I / O module 8. If the two are completely consistent, it proves that the entire data transmission link (CSCX->CSZB->CSBX) is functioning normally, and the verification result is judged as "qualified"; if any byte is inconsistent, the verification result is judged as "unqualified", and the fault can be preliminarily located.
[0076] The principle of preliminary fault location is as follows: Based on the data flow within the device (CSCX -> CSZB -> CSBX), if the transmitted and received data are completely unrelated, the fault may occur at the beginning of the link (such as CSCX reception); if the data is partially correct or shows regular errors, the fault may occur in the processing or transmission stage of the link (such as CSZB processing or CSBX output). Therefore, based on the data error pattern (such as complete error, partial loss, or specific location error) combined with the data transmission path, preliminary fault location indications can be provided for subsequent board-level maintenance. For example, it may indicate that the fault may exist in different stages such as serial reception, central processing, or parallel output.
[0077] Communication module 9 has full-duplex communication capability and can provide receiving function for other test scenarios (such as testing the self-transmission and self-reception of the CSCX serial interface board).
[0078] The power supply unit includes: an AC purified and regulated power supply 13, a high-precision DC regulated power supply 12, and an internal power supply 2. The AC purified and regulated power supply 13 provides a stable 220V / 50Hz sine wave output, providing clean AC input to the internal power supply 2 and the high-precision DC regulated power supply 12. The internal power supply 2 converts the 220V AC input from the AC purified and regulated power supply 13 into various low-voltage DC currents required for the normal operation of the components inside the main control chassis (e.g., +12V for driving the hard disk motor, +5V and +3.3V for chip logic circuits). It supplies power to all components within the main control chassis, including: the main control and data processing unit, analog I / O module 6, isolated digital I / O module 7, digital I / O module 8, and communication module 9. The high-precision DC regulated power supply 12 provides an extremely stable and accurate DC operating voltage to the verification signal conversion interface device 10 and the verified functional module 11. Its output voltage accuracy, stability (with time / temperature variation), and ripple noise performance are far superior to ordinary computer power supplies. The high-precision DC regulated power supply 12 directly supplies power to the verification signal conversion interface device 10, and the verification signal conversion interface device 10 and the verified functional module 11 are "plugged in and powered".
[0079] As an example, the verification system also includes a human-computer interaction and output unit, which is connected to the main control and data processing unit to realize human-computer interaction and result output. The human-computer interaction and output unit includes a flat panel display 3 and the printer 4, which are used to realize the graphical display of human-computer interaction information and the physical output of the verification result report, respectively.
[0080] Example 2:
[0081] Based on the verification system in Embodiment 1 above, this embodiment provides a specific automatic verification method for functional modules of a power control system; the execution flow of this method is as follows: Figure 2 As shown, the verification is completed collaboratively by various modules in the main control and data processing unit scheduling system. Specifically, it includes the following steps:
[0082] S1. Power-on and Self-diagnosis:
[0083] When the verification system is powered on, the main control and data processing unit automatically runs a self-diagnostic program to detect the working status of the analog I / O module 6, isolated digital I / O module 7, digital I / O module 8, communication module 9, and internal power supply 2. If the self-diagnosis fails, the cause of the system's fault is displayed on the flat panel display 3, and the process terminates. If the self-diagnosis passes, the process continues.
[0084] S2. Verify task configuration:
[0085] Select the interface box (verification signal conversion module interface device 10) and the type of functional module to be verified through the human-computer interaction interface provided by the flat panel display 3; and enter the verification location and verifier information (this information can also be entered in the "data archiving and report output" step).
[0086] S3. Execute the corresponding automatic verification program:
[0087] According to the type of the function module 11 selected in S2, the main control and data processing unit calls and executes the pre-stored automatic verification program corresponding to the function module being verified. This controls the analog I / O module 6, isolated digital I / O module 7, digital I / O module 8, communication module 9, and verification signal conversion module interface device 10 (the specific process is the verification process for different function modules being verified in Embodiment 1 above), so that they work according to the preset verification program to obtain the response data of the function module 11 being verified.
[0088] S4. Data Processing and Result Determination:
[0089] The main control and data processing unit calls its internally stored dedicated data processing logic that matches the function module 11 being verified, processes the response data collected in S3, and automatically determines whether the function module 11 being verified is "qualified" or "unqualified" according to the preset tolerance: if the error exceeds the preset tolerance, it is determined to be "unqualified" and proceeds to step S5; if the error is within the preset tolerance, it is determined to be "qualified" and proceeds directly to step S6; the processing process and the judgment result are displayed on the flat panel display 3 in real time.
[0090] S5. Intelligent Fault Diagnosis and Guidance:
[0091] If the verification result is "unqualified", the main control and data processing unit calls the fault diagnosis knowledge base stored in its internal storage and starts the intelligent diagnosis logic; then the channel or suspected component where the fault is located, the cause of the fault based on the knowledge base analysis, and specific repair suggestions are displayed on the flat panel display 3.
[0092] S6. Data Archiving and Report Output:
[0093] The main control and data processing unit associates and stores all raw data, processing results, judgment conclusions, and fault diagnosis information of this verification into an internal database or external storage device, achieving complete data traceability. Simultaneously, a formatted verification report can be output via printer 4 according to instructions.
[0094] S7. Verification complete:
[0095] Once a single verification process is complete, the system awaits the next task. The operator can safely remove the currently verified functional module 11.
[0096] This verification method integrates the cumbersome process of traditional manual wiring, point-by-point measurement and recording into a "one-click" automatic operation, which greatly improves verification efficiency and reduces reliance on operator skills; achieving a high degree of automation and high efficiency.
[0097] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.
Claims
1. An automatic verification system for functional modules of a power control system, characterized in that, include: The main control and data processing unit, analog I / O module (6), isolated digital I / O module (7), digital I / O module (8), communication module (9), verification signal conversion module interface device (10), and power supply unit for power supply; The main control and data processing unit selects to enable analog I / O module (6), isolated digital I / O module (7), digital I / O module (8) or communication module (9) according to the type of the function module (11) being verified, and controls the analog I / O module (6), isolated digital I / O module (7), digital I / O module (8) or communication module (9) to output excitation signals to the function module (11) being verified, and collects the response signals of the function module (11) being verified; the main control and data processing unit is also used to process the response signals generated after the function module (11) being verified is excited according to the set verification algorithm, and to make a pass / fail judgment according to the set verification standard; The verification signal conversion module interface device (10) is used to carry the verification function module (11) and the corresponding signal conversion circuit; the verification signal conversion module interface device (10) is electrically connected to the analog I / O module (6), the isolated digital I / O module (7), the digital I / O module (8), and the communication module (9) respectively.
2. The automatic verification system for functional modules of a power control system as described in claim 1, characterized in that, The main control and data processing unit internally stores a fault diagnosis knowledge base and has the functions of a fault diagnosis expert system.
3. The automatic verification system for functional modules of a power control system as described in claim 1 or 2, characterized in that, The verification signal conversion module interface device (10) is provided with at least two functional interface boxes, which are used to carry different types of verified functional modules (11) and corresponding signal conversion circuits; The verified function module (11) is detachably installed in the function interface box corresponding to the verification signal conversion module interface device (10).
4. The automatic verification system for functional modules of a power control system as described in claim 1 or 2, characterized in that, When the function module being verified (11) is a function module whose input or output signal is an analog quantity, the main control and data processing unit controls the analog quantity I / O module (6) to output an analog quantity excitation signal to the function module being verified (11) through the verification signal conversion module interface device (10), and collects the analog quantity response signal of the function module being verified (11).
5. The automatic verification system for functional modules of a power control system as described in claim 1 or 2, characterized in that, When the function module (11) being verified is a bridge circuit conversion module in the power control system, the main control and data processing unit controls the isolated digital I / O module (7) to output an excitation signal to the function module (11) being verified through the verification signal conversion module interface device (10); and controls the analog I / O module (6) to collect the response signal of the function module (11) being verified.
6. The automatic verification system for functional modules of a power control system as described in claim 1 or 2, characterized in that, When the function module being verified (11) is a function module whose input or output signal is a digital logic quantity, the main control and data processing unit controls the digital I / O module (8) to output a digital excitation signal to the function module being verified (11) and collects the digital response signal output by the function module being verified (11).
7. The automatic verification system for functional modules of a power control system as described in claim 1 or 2, characterized in that, When the function module being verified (11) is a function module with a serial communication interface, the main control and data processing unit controls the communication module (9) to output an excitation signal to the function module being verified (11) through the verification signal conversion module interface device (10); and controls the digital I / O module (8) to collect the response signal of the function module being verified (11).
8. The automatic verification system for functional modules of a power control system as described in claim 1 or 2, characterized in that, The power supply unit includes: an AC purified voltage regulator (13), a high-precision DC voltage regulator (12), and an internal power supply (2). The AC purified voltage regulator (13) is used to provide clean AC input to the internal power supply 2 and the high-precision DC voltage regulator (12); The internal power supply (2) is used to convert the AC power input from the AC purified and regulated power supply (13) into various low-voltage DC power required for the normal operation of the components inside the main control chassis; The high-precision DC regulated power supply (12) is used to provide DC operating voltage for the verification signal conversion interface device (10) and the verified functional module (11).
9. The automatic verification system for functional modules of a power control system as described in claim 1 or 2, characterized in that, It also includes a human-computer interaction and output unit; the human-computer interaction and output unit is connected to the main control and data processing unit and is used to realize human-computer interaction and result output.
10. An automatic verification method for functional modules of a power control system, characterized in that, The automatic verification system described in any one of claims 1-9 is adopted: S1. Power-on and Self-diagnosis: When the verification system is powered on, the main control and data processing unit automatically runs the self-diagnosis program to detect the working status of the analog I / O module (6), isolated digital I / O module (7), digital I / O module (8), communication module (8) and internal power supply inside the system; if the self-diagnosis fails, the process terminates; if the self-diagnosis passes, the process continues. S2. Verify task configuration: Select the type of the functional module (11) to be verified in this verification; S3. Execute the corresponding automatic verification program: The main control and data processing unit calls and executes the pre-stored automatic verification program corresponding to the function module (11) selected in S2 according to the type of the function module (11) being verified, and controls the analog I / O module (6), isolated digital I / O module (7), digital I / O module (8) or communication module (9) to output excitation signals to the function module (11) being verified in order to obtain the response signal of the function module (11) being verified. S4. Data Processing and Result Determination: The main control and data processing unit processes the response data collected in S3 according to the set verification algorithm corresponding to the current verified function module (11), and automatically determines whether the verified function module (11) is "qualified" or "unqualified" according to the preset tolerance: that is, if the error exceeds the preset tolerance, it is determined to be "unqualified" and proceeds to step S5; if the error is within the preset tolerance, it is determined to be "qualified" and proceeds directly to step S6. S5. Intelligent Fault Diagnosis and Guidance: If the verification result is "unqualified", the main control and data processing unit calls its internally stored fault diagnosis knowledge base and starts the intelligent diagnosis logic; S6. Data Archiving and Report Output: The main control and data processing unit will associate and store all the original data, processing results, judgment conclusions and fault diagnosis information of this verification to an internal database or external storage device. S7. Verification complete: Once the single verification process is complete, remove the currently verified functional module (11).