Lightweight distributed test system

Abstract

The invention, which belongs to the technical field of equipment testing, provides a lightweight distributed testing system comprising a remote controller and a near-end testing unit. Wherein the remote controller comprises a computer and a functional interface card; the near-end test unit is a board card framework and comprises multiple sets of independent measurement and control systems and a network switch, each set of measurement and control system is composed of a main control board, a time sequence board, a power distribution board and a power board, the multiple sets of measurement and control systems share one bottom board, the main control board, the time sequence board and the power distribution board are all provided with network interfaces, and the network interfaces are connected with the network switch. All network interfaces are gathered through the network switch; the remote controller is in communication connection with the near-end test unit and has a wireless communication mode and a wired communication mode. The device has the advantages of being convenient to move, convenient to assemble and maintain, high in expandability and environment applicability and capable of meeting the requirements for diversification and combination of products to be tested.

Description

Technical Field

[0001] This invention relates to the field of equipment testing technology, and in particular to a lightweight distributed testing system. Background Technology

[0002] Most of the currently developed testing systems are large and bulky, requiring a large number of long-distance cables. This makes them unsuitable for use in field environments and they lack the capability for distributed connections between different platforms at sea. Summary of the Invention

[0003] This invention provides a lightweight distributed testing system to address the shortcomings of existing technologies.

[0004] This invention provides a lightweight distributed testing system, comprising: a remote controller and a local testing unit; wherein, the remote controller includes a computer and a function interface card; The near-end test unit is a board architecture, including multiple independent measurement and control systems and a network switch. Each measurement and control system consists of a main control board, a timing board, a power distribution board and a power supply board. The multiple measurement and control systems share a baseboard. The main control board, timing board and power distribution board are all equipped with network interfaces. All network interfaces are aggregated through the network switch. The remote controller and the near-end test unit are connected by a communication link, and both wireless and wired communication methods are available.

[0005] According to the lightweight distributed testing system provided by the present invention, the remote controller cooperates with the computer through the functional interface card to realize the human-computer interaction interface for testing process control and the button-based control of key signals.

[0006] According to the lightweight distributed test system provided by the present invention, the baseboard shared by the test and control system is a CPCI baseboard; the main control board, timing board, power distribution board and power supply board in the near-end test unit are plugged into the slots of the CPCI baseboard through CPCI connectors; the main control board, timing board and power distribution board exchange data through the CPCI bus deployed on the baseboard.

[0007] According to the lightweight distributed test system provided by the present invention, the main control board is used to realize data interaction and processing between the remote controller and the local test unit, and to send control commands to the timing board and the power distribution board.

[0008] According to the lightweight distributed testing system provided by the present invention, the main control board serves as the control core of the near-end testing unit, and its functions include: configuring multiple bus interfaces, some for external communication with the test product and some for internal inter-board communication; the types of the multiple bus interfaces include CANFD bus, RS422 bus communication, RS232 bus communication and RS485 bus communication; configuring a multi-channel analog-to-digital converter for acquiring and monitoring the system's internal power parameters and test product feedback signals; and configuring at least two network interfaces, one for connecting to the test product and the other for connecting to a router module.

[0009] According to the lightweight distributed testing system provided by the present invention, the timing board is configured to receive and execute instructions from the main control board, and to test timing acquisition and output control; the timing board has multiple timing signal output channels and multiple timing signal acquisition channels.

[0010] According to the lightweight distributed testing system provided by the present invention, the power distribution board is configured to receive and execute instructions from the main control board, provide multiple independent controllable power distribution output channels, and collect and monitor the voltage and current parameters of each output in real time.

[0011] According to the lightweight distributed test system provided by the present invention, the power board is used to convert externally input AC power into multiple DC power supplies of different voltage levels, and distribute them to the functional boards in the near-end test unit through the base plate.

[0012] According to the lightweight distributed testing system provided by the present invention, the wireless communication link between the remote controller and the near-end testing unit adopts a data encryption transmission mechanism.

[0013] According to the lightweight distributed testing system provided by the present invention, the main control board has a reserved RS232 interface for debugging and at least two JTAG interfaces, which are used for system debugging and program debugging on the PS and PL sides, respectively.

[0014] The lightweight distributed testing system provided by this invention has the following advantages compared with the prior art: (1) The present invention completely changes the centralized and bulky form of traditional test systems by separating the remote controller from the local test unit, giving the system excellent mobility and deployment flexibility, and is especially suitable for space-constrained scenarios such as the field and mobile platforms.

[0015] (2) Supports hot-swapping and independent replacement at the board level. The failure of a single module does not affect the overall system, which greatly reduces the mean time to repair (MTTR) and improves equipment availability. Based on the slot-type structure of the CPCI baseboard, the board configuration can be flexibly added or adjusted according to the test requirements, easily meeting the "diversified and combined" test requirements of the tested products, and the system has a long life cycle.

[0016] (3) The timing board in this invention specializes in the acquisition and generation of high-precision timing signals to ensure the accuracy of timing control; the power distribution board focuses on the precise control of multiple power supplies and real-time monitoring of parameters to ensure the power supply safety of the system under test; and the main control board serves as the core for unified scheduling and data fusion. This specialized division of labor makes the system superior to traditional systems with low integration in terms of test accuracy, response speed, and data reliability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is one of the schematic diagrams of the testing system of the present invention; Figure 2 This is a second schematic diagram of the testing system of the present invention; Figure 3 This is a schematic diagram of the main control board module provided by the present invention; Figure 4 This is a schematic diagram of the timing board module provided by the present invention; Figure 5 This is a schematic diagram of the power distribution board module provided by the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0020] It should be noted that, in the description of the embodiments of the present invention, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0021] The lightweight distributed testing system provided by this invention includes: a remote controller and a near-end testing unit; wherein, the remote controller includes a computer and a function interface card; the near-end testing unit is a board-based architecture, including multiple independent measurement and control systems and a network switch, each measurement and control system consisting of a main control board, a timing board, a power distribution board, and a power supply board, and the multiple measurement and control systems share a common baseboard, the main control board, the timing board, and the power distribution board are all equipped with network interfaces, and all network interfaces are aggregated through the network switch; the remote controller and the near-end testing unit communicate with each other, and have both wireless and wired communication modes.

[0022] This invention provides an innovative lightweight distributed testing system. Its core idea is to reconstruct traditional centralized and bulky testing equipment into a flexible and scalable distributed system composed of a remote controller (command center) and local testing units (field execution units) through a "front-end and back-end separation" architecture. This aims to solve the pain points of existing technologies such as bulky equipment, long cables, and poor environmental adaptability.

[0023] Understandably, the system's most fundamental innovation lies in its distributed architecture: Remote controller: Serving as the "brain" and interactive interface of the system, it is typically located in a safe and comfortable control room. It consists of a general-purpose computer and a dedicated function interface card, providing not only a graphical software interface for controlling complex test processes, but also highly reliable "button-based control" of critical signals (such as emergency stops) via hardware buttons.

[0024] Near-end test unit: As the system's "executive hand," it is deployed in the field close to the device under test. It is responsible for directly connecting to and controlling the system under test, performing specific tasks such as power supply, signal acquisition, and command issuance. This layout greatly shortens the connecting cables, achieving a "lightweight" system.

[0025] Furthermore, the near-end test unit adopts a highly modular board architecture, which is key to achieving flexibility and maintainability.

[0026] Modular composition: Each near-end unit integrates multiple independent measurement and control systems. Each system is like a complete set of standard building blocks, including four major functional modules: main control board (local control core), timing board (precision timing control), power distribution board (power management), and power supply board (power conversion).

[0027] Unified backplane (baseboard): These multiple "modules" are all plugged into a shared baseboard, enabling interconnection of power supply and basic communication. This design supports flexible configuration of functions and quick replacement of boards, and simplifies maintenance.

[0028] Network integration: The network interfaces of all boards (main control, timing, power distribution) are converged on a built-in network switch, providing a unified and high-speed external channel for large data transmission (such as test data and status monitoring).

[0029] Communication Redundancy: The remote controller and the local test unit simultaneously support both wired and wireless communication methods. This not only provides deployment flexibility (wireless communication facilitates mobile platforms) but also constitutes redundant backup of the communication link, ensuring extreme reliability of the connection in any environment. In terms of communication protocol, it combines high-speed networks and a highly reliable CANFD bus to meet different data transmission requirements.

[0030] As an optional embodiment, the baseboard shared by the measurement and control system is a CPCI baseboard; the main control board, timing board, power distribution board and power supply board in the near-end test unit are plugged into the slots of the CPCI baseboard through CPCI connectors; the main control board, timing board and power distribution board exchange data through the CPCI bus deployed on the baseboard.

[0031] As an optional embodiment, the lightweight distributed testing system provided by the present invention includes a remote controller that works with the computer through the functional interface card to realize a human-computer interaction interface for test process control and button-based control of key signals.

[0032] Specifically, the remote controller works in conjunction with a portable ruggedized computer and a function interface card. The computer runs dedicated testing software, provides a graphical user interface, and processes complex logic and data; the function interface card provides physical buttons, status indicator lights, and other hardware interfaces to achieve hardware-level "button-based control" of critical signals (such as emergency stop and main power switch), ensuring that critical operations can be executed safely and reliably even if the software system malfunctions.

[0033] As an optional embodiment, the lightweight distributed testing system provided by the present invention uses a main control board as the control core of the near-end testing unit. Its functions include: configuring multiple bus interfaces, some for external communication with the test product and some for internal inter-board communication; the types of the multiple bus interfaces include CANFD bus, RS422 bus communication, RS232 bus communication, and RS485 bus communication; configuring a multi-channel analog-to-digital converter for acquiring and monitoring internal power parameters and test product feedback signals; and configuring at least two network interfaces, one for connecting to the test product and one for connecting to a router module.

[0034] For example, the present invention can be configured as follows: (1) External communication interface (interaction with the test product): CANFD bus: Used to transmit critical control commands and real-time status data, featuring high bandwidth and high reliability.

[0035] RS422 / RS232 bus: Suitable for stable, long-distance serial communication with specific test products that conform to these standards.

[0036] (2) Internal communication interface (inter-board collaboration): CANFD bus: As the backbone network for inter-board communication, it is used to transmit high-speed, high-real-time control and status information between the main control board and the timing board and power distribution board.

[0037] RS485 bus: can be used as a supplement for the transmission of non-real-time parameters between modules.

[0038] (3) Network communication interface (system integration and expansion): At least one interface (product network port): directly connects to a smart product under test that supports network communication for high-speed data exchange.

[0039] At least one interface (internal network port): connects to the network switch inside the near-end unit, aggregates data from the main control board itself and other boards it manages, and enables unified network communication with the remote controller.

[0040] (4) The main control board integrates a multi-channel analog-to-digital converter to achieve accurate sensing of analog signals: Monitor internal health status: Collect voltage and current parameters of key power supplies (such as 28V1 and 28V2) inside the system for real-time monitoring and fault diagnosis.

[0041] Collect product feedback signals: Receive analog sensor signals (such as voltage feedback) returned by the system under test, complete data acquisition, and provide a basis for test judgment.

[0042] As an optional embodiment, the lightweight distributed testing system provided by the present invention includes a timing board configured to receive and execute instructions from the main control board for timing acquisition and output control; the timing board has multiple timing signal output channels and multiple timing signal acquisition channels.

[0043] (1) Multi-channel timing signal output: Provides multiple independent, programmable timing signal outputs. For example, it can simultaneously control multiple relays, indicator lights or actuators and make them act sequentially or synchronously according to a preset time sequence.

[0044] High-precision timing is typically achieved using FPGAs or dedicated timer chips, and each output can be configured independently via software for its trigger time, pulse width, and level.

[0045] (2) Multi-channel timing signal acquisition channel: Function: Provides multi-channel switch input acquisition for monitoring the state changes of the system under test. It can monitor the signals of dozens of nodes simultaneously and accurately record the time when each signal transition (from high to low or from low to high) occurs.

[0046] As an optional embodiment, the lightweight distributed testing system provided by the present invention has a power distribution board configured to receive and execute instructions from the main control board, provide multiple independent controllable power distribution output channels, and collect and monitor the voltage and current parameters of each output in real time.

[0047] (1) Multiple independent controllable power distribution output channels: Function: Provides multiple (e.g., DB, DP, MNBB, MNBP, a total of 4 channels) completely independent power distribution outputs. Each channel can be individually turned on or off via software commands without interference. This allows the test system to power on different modules of the product under test in a time-sharing or sequential manner as needed, simulating a real startup sequence or performing power consumption tests.

[0048] Technical implementation: The physical on / off control of the circuit is usually achieved through high-power relays or solid-state relays, and the response speed and reliability are ensured by the drive circuit.

[0049] (2) Real-time acquisition and monitoring of voltage and current parameters: Function: Each power distribution channel integrates high-precision voltage and current sensors (such as sampling resistors + amplifiers). These sensors continuously convert analog parameters into digital signals for the onboard processor to read.

[0050] Technical Implementation: The collected data is digitized via an onboard analog-to-digital converter and reported to the main control board in real time via the CANFD bus. This allows operators to remotely monitor in real time whether the power supply to each channel is normal and whether the load current is within a safe range.

[0051] As an optional embodiment, the lightweight distributed test system provided by the present invention includes a power board that converts externally input AC power into multiple DC power supplies of different voltage levels, which are then distributed to the functional boards in the near-end test unit via the base plate.

[0052] (1) Multiple voltage level outputs: To meet the needs of different chips and circuits in the near-end test unit, multiple DC regulated outputs of different voltage levels are provided. For example, typical outputs include 28V (which may be used to drive relays or high-power loads) and 9V (which may be used to power the secondary power supply module or core chip on the board).

[0053] Technical Implementation: This invention can integrate a high-efficiency AC / DC power conversion module and subsequent DC / DC voltage regulation circuit inside the board to ensure stable output DC voltage with low ripple, meeting the power supply requirements of precision measurement circuits.

[0054] 2. Unified distribution via the baseboard: The converted DC power is not directly connected via flying wires, but is input to the power layer of the CPCI baseboard, and then distributed to each slot by the baseboard through standard connectors.

[0055] This design allows all business boards to draw power from the backplane via their CPCI connectors, achieving "plug and play" functionality. This greatly simplifies internal cabling and improves neatness, reliability, and maintainability.

[0056] As an optional embodiment, the lightweight distributed testing system provided by the present invention employs a data encryption transmission mechanism for the wireless communication link between the remote controller and the near-end testing unit.

[0057] For example, this invention employs a high-strength symmetric encryption algorithm (such as AES-256) to encrypt and decrypt transmitted data packets in real time. The encryption key is negotiated and exchanged during the initial communication phase via a security protocol (such as a TLS / SSL handshake or a similar custom security protocol).

[0058] As an optional embodiment, the lightweight distributed testing system provided by the present invention has a main control board with a reserved RS232 interface for debugging and at least two JTAG interfaces, which are used for system debugging and program debugging on the PS and PL sides, respectively.

[0059] (1) RS232 interface for debugging: This interface is typically used for: Output low-level debugging information, such as system startup logs, initialization status of each module, and runtime error codes.

[0060] Receive simple diagnostic commands: Perform basic control and status queries via command line when the graphical interface is unavailable.

[0061] Implementation: It is usually designed as an onboard UART to RS232 level conversion chip, and brought out through a standard connector (such as DB9) or a simple pin header interface.

[0062] (2) At least two JTAG interfaces: JTAG is a standard chip debugging interface, used in this example for debugging the PS and PL sides respectively. The core of the main control board can be a heterogeneous processor integrating an ARM core (PS) and an FPGA (PL).

[0063] The PS-side JTAG interface is used for debugging the processor system. Its functions include, but are not limited to, burning and debugging operating systems (such as Linux) and applications running on the ARM core.

[0064] Set breakpoints, step through the code, and view memory and register contents.

[0065] PL-side JTAG interface: Used for debugging programmable logic. Functions include, but are not limited to: Configure the logic bitstream file for the FPGA.

[0066] Use the logic analyzer function to monitor the internal signal waveforms of the FPGA in real time to verify the correctness of the timing logic.

[0067] During the software development phase, software engineers debug application logic via JTAG on the PS side, while hardware engineers debug hardware acceleration logic and communication IP cores via JTAG on the PL side. This design supports collaborative debugging between software and hardware, significantly shortening the development cycle.

[0068] The lightweight distributed testing system provided by this invention has the following advantages compared with the prior art: (1) The present invention completely changes the centralized and bulky form of traditional test systems by separating the remote controller from the local test unit, giving the system excellent mobility and deployment flexibility, and is especially suitable for space-constrained scenarios such as the field and mobile platforms.

[0069] (2) Supports hot-swapping and independent replacement at the board level. The failure of a single module does not affect the overall system, which greatly reduces the mean time to repair (MTTR) and improves equipment availability. Based on the slot-type structure of the CPCI baseboard, the board configuration can be flexibly added or adjusted according to the test requirements, easily meeting the "diversified and combined" test requirements of the tested products, and the system has a long life cycle.

[0070] (3) The timing board in this invention specializes in the acquisition and generation of high-precision timing signals to ensure the accuracy of timing control; the power distribution board focuses on the precise control of multiple power supplies and real-time monitoring of parameters to ensure the power supply safety of the system under test; and the main control board serves as the core for unified scheduling and data fusion. This specialized division of labor makes the system superior to traditional systems with low integration in terms of test accuracy, response speed, and data reliability.

[0071] To provide a clearer explanation of the present invention, the invention will be further described below with reference to another embodiment: See Figure 1 and Figure 2 This invention discloses a lightweight distributed testing system whose core architecture is designed from two parts: a remote controller and a local testing unit. The remote controller uses a customized portable ruggedized computer paired with a function interface card to realize the human-machine interface for test process control and button-based control of key signals. The local testing unit adopts a 3U board architecture for easy disassembly and module replacement. Each module is inserted into an 8-slot baseboard via a CPCI connector. The implementation is as follows: 1. Overall Approach The testing system operates using a near-field / remote-field separation mechanism. The remote controller and the near-field test unit exchange information via wired or wireless network. The system's operating principle is detailed below. Figure 1 and Figure 2 As shown.

[0072] The remote controller enables scheduling and control of the measurement and control process, information monitoring, data printing output, and provides a human-machine interface. The near-end test unit, as the execution core of the test system, is directly electrically connected to the system under test (SUT), enabling power distribution and disconnection control, signal communication, functional testing, and command forwarding control. After receiving commands from the remote controller, the near-end test unit sends corresponding signals to the SUT, and collects and transmits the SUT information back to the remote controller.

[0073] The near-end test unit adopts a CPCI architecture. Each module is designed as a 3U board module. The modules are interconnected through a backplane. One end of the module is inserted into the baseboard through a CPCI connector, and the other end is connected to the outside through a connector.

[0074] 2. Technical Implementation 2.1 Remote Controller Implementation The remote controller works in tandem with a portable ruggedized computer and a function interface card. The computer runs dedicated testing software, provides a graphical user interface, and processes complex logic and data; the function interface card provides physical buttons, status indicator lights, and other hardware interfaces to achieve hardware-level "button-based control" of critical signals (such as emergency stop and main power switch), ensuring that critical operations can be executed safely and reliably even if the software system malfunctions.

[0075] 2.2 Main Control Board Design The main control board is used to realize data interaction and processing between the remote controller and the local test unit, and to send control commands to the timing board and the power distribution board.

[0076] The main control board module is the core of the near-end test unit. Externally, it connects to the adapter cable via a J30J-100ZK socket, and internally, it connects to the baseboard via a CPCI connector. The baseboard provides 9V power.

[0077] The main control board module implements the following functions: a) 8-channel CANFD bus communication: 2 channels are output through J30J-100ZK for communication with the test product; 2 channels are connected to the baseboard through CPCI connectors for inter-board communication.

[0078] b) 4-channel RS422 bus communication: all output through J30J-100ZK for communication with test products.

[0079] c) 2-channel RS232 bus communication: all output through J30J-100ZK for communication with the test product.

[0080] d) 2-channel RS485 bus communication: All are connected to the backplane via CPCI connectors for inter-board communication.

[0081] e) 8-channel AD acquisition: The acquisition function of 28V1, 28V2 voltage and current, and 4-channel on-board system voltage is completed through one AD7606 chip, for a total of 8 AD acquisition channels; f) Two-way network communication: one channel is output through J30JA-100ZK for communication with the test product; the other channel is connected to the baseboard via CPCI connector to connect to the router module.

[0082] One RS232 debugging interface is reserved on the main control board module. It can be output using a pin header. During debugging, an external USB to serial port tool can be connected to ultimately be used for product debugging.

[0083] Two JTAG interfaces are reserved according to the product debugging design, which can be used for debugging work on the PS and PL sides. The working principle of the main control board module is explained below. Figure 3 As shown.

[0084] 2.3 Timing Board Design The timing board is configured to receive and execute instructions from the main control board to test timing acquisition and output control; the timing board has multiple timing signal output channels and multiple timing signal acquisition channels.

[0085] The timing board module is the timing acquisition and output control section of the near-end test unit. Externally, it connects to the adapter cable via a J30J-100ZJ socket, and internally, it connects to the baseboard via a CPCI connector. It is powered by three power supplies: 9V, 28V1, and 28V2. The working principle of the timing board module is explained in [link to documentation]. Figure 4 As shown.

[0086] The main control board module implements the following functions: a) 5-channel timing output: Each timing design has 2 outputs, and the 2 outputs are combined into 1 output in hardware.

[0087] b) 23-channel timing input acquisition: Design an optocoupler acquisition circuit to realize the acquisition of 24-channel switch input, including the recovery of the +BF / -BF signal after the timing control is released, providing 23-channel external timing input function.

[0088] 2.4 Distribution Board Design The power distribution board module is the near-end test unit, providing power output to the system under test. Externally, it connects to the adapter cable via a J29-86ZK socket, and internally, it connects to the baseboard via a CPCI connector. It can provide four power output channels (DB, DP, MNBB, MNBP), voltage and current acquisition, etc. The working principle of the power distribution board module is described in [link to documentation]. Figure 5 As shown.

[0089] 2.5 Data Communication Design The remote controller and the local test unit communicate via a network + CANFD bus, and can be connected via both wired and wireless methods. The modules within the local test unit exchange data via CANFD and RS485 buses, and each module is also designed with a network interface, which can be aggregated through a switch for external communication.

[0090] 2.6 Power Supply Scheme The test system is powered by 220V AC externally. The power is input to the power board through the CPCI connector on the baseboard. After being converted to 28V and 9V DC by the AC / DC conversion module, the power is output to the baseboard through the CPCI connector on the baseboard for use by various board modules.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lightweight distributed testing system, characterized in that, include: Remote controller and near-end test unit; The remote controller includes a computer and a function interface card; The near-end test unit is a board architecture, including multiple independent measurement and control systems and a network switch. Each measurement and control system consists of a main control board, a timing board, a power distribution board and a power supply board. The multiple measurement and control systems share a baseboard. The main control board, timing board and power distribution board are all equipped with network interfaces. All network interfaces are aggregated through the network switch. The remote controller and the near-end test unit are connected by a communication link, and both wireless and wired communication methods are available.

2. The lightweight distributed testing system according to claim 1, characterized in that, The remote controller, through the function interface card, works with the computer to realize the human-machine interface for test process control and the button-based control of key signals.

3. The lightweight distributed testing system according to claim 1, characterized in that, The baseboard shared by the measurement and control system is the CPCI baseboard; The main control board, timing board, power distribution board, and power supply board in the near-end test unit are connected to the slots of the CPCI base plate via CPCI connectors. The main control board, timing board, and power distribution board exchange data via the CPCI bus deployed on the baseboard.

4. The lightweight distributed testing system according to claim 1, characterized in that, The main control board is used to realize data interaction and processing between the remote controller and the local test unit, and to send control commands to the timing board and the power distribution board.

5. The lightweight distributed testing system according to claim 1, characterized in that, The main control board serves as the control core of the near-end test unit, and its functions include: Configure multiple bus interfaces, some for external communication with test products, and some for internal communication between boards; the types of multiple bus interfaces include CANFD bus, RS422 bus communication, RS232 bus communication and RS485 bus communication; Configure a multi-channel analog-to-digital converter for acquiring and monitoring internal power parameters and feedback signals from test products; Configure at least two network interfaces, one for connecting to the test product and one for connecting to the router module.

6. The lightweight distributed testing system according to claim 4, characterized in that, The timing board is configured to receive and execute instructions from the main control board to test timing acquisition and output control; The timing board has multiple timing signal output channels and multiple timing signal acquisition channels.

7. The lightweight distributed testing system according to claim 4, characterized in that, The power distribution board is configured to receive and execute instructions from the main control board, provide multiple independent controllable power distribution output channels, and collect and monitor the voltage and current parameters of each output in real time.

8. The lightweight distributed testing system according to claim 4, characterized in that, The power board is used to convert externally input AC power into multiple DC power supplies of different voltage levels, and distribute them to the functional boards in the near-end test unit through the base plate.

9. The lightweight distributed testing system according to claim 4, characterized in that, The wireless communication link between the remote controller and the near-end test unit employs a data encryption transmission mechanism.

10. The lightweight distributed testing system according to claim 1, characterized in that, The main control board has a reserved RS232 interface for debugging and at least two JTAG interfaces, which are used for system debugging and program debugging on the PS and PL sides, respectively.

Images