Modular intelligent circuit breaker

Abstract

The invention belongs to the field of electricity, particularly relates to a modular intelligent circuit breaker, and aims to solve the problem that a current circuit breaker highly depends on a single main processor and a communication bus due to the fact that the current circuit breaker generally adopts a centralized processing architecture. The modularized intelligent circuit breaker comprises a base and a core function module, and the core function module comprises a main control communication module which is integrated with a main processor and a communication unit; the measurement and protection module is integrated with a current sampling unit, a voltage sampling unit and a sub-processor with a built-in protection algorithm; the interaction and display module is integrated with a touch display screen; the load control and expansion module is integrated with a plurality of programmable relay output interfaces and a signal input interface used for being connected with an external sensor; the mechanical operating mechanism module comprises a contact system, an operating mechanism and an integrated state monitoring unit. According to the invention, the modular design of the intelligent circuit breaker is realized, and the flexibility and maintainability of the system are effectively improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of electricity, and particularly relates to a modular intelligent circuit breaker. BACKGROUND

[0002] As a basic circuit protection device, the circuit breaker is widely used in power distribution systems at all levels from civil buildings to industrial power grids. Its core function is to quickly and reliably cut off the current when Overload, Short-Circuit and other faults occur in the circuit to protect the subsequent lines and electrical equipment.

[0003] With the rapid development of Internet of Things and smart grid technologies, the functional requirements of the circuit breaker have expanded from single protection to state monitoring, data interaction, remote control and intelligent operation and maintenance in multiple dimensions. Currently, the smart circuit breakers on the market mainly include two types: One is an integrated architecture, that is, all electronic function units such as measurement, protection, communication and control are packaged together with the mechanical operating mechanism in a fixed housing. When any function unit (such as a touch display screen or a communication module) in the system fails, it may cause the entire circuit breaker to shut down, resulting in poor maintainability.

[0004] The second is a simple modular architecture, but most of them still stay at the initial stage of physically separating electronic function units from mechanical mechanisms. The main processor is usually unique and centralized in a certain module. Once the communication bus between the main processor and the module is delayed or interrupted due to interference or other reasons, even if the measurement module has detected a serious fault current, the entire system will lose its protection capability due to the failure to issue a trip command in time, and the system lacks scalability and flexibility, which may also pose a serious safety hazard.

[0005] In summary, the current smart circuit breaker generally adopts a centralized processing architecture, which makes it highly dependent on a single main processor and communication bus. Once the main processor fails or the communication link is delayed or blocked, even if the fault has been detected by the module, the system cannot execute the trip command in time, thus existing inherent safety risks of protection failure. SUMMARY

[0006] In order to solve the above problems in the prior art, that is, the current circuit breaker generally adopts a centralized processing architecture, which makes it highly dependent on a single main processor and communication bus, the application provides a modular intelligent circuit breaker, which comprises a base and a core function module pluggably assembled on the base, and the core function module comprises: a main control communication module integrated with a main processor and a communication unit, the main processor being in communication connection with each module through a data bus inside the base to perform data exchange and instruction routing between modules. a measurement and protection module integrated with a current sampling unit, a voltage sampling unit and a sub-processor with a built-in protection algorithm, the sub-processor being configured to process electrical parameters in parallel and make independent tripping decisions by invoking the current sampling unit and the voltage sampling unit; an interaction and display module integrated with a touch display screen, the driving end of the touch display screen being connected with the master communication module for receiving and displaying system status and fault information distributed by the master communication module; a load control and extension module integrated with a plurality of programmable relay output interfaces and signal input interfaces for connecting external sensors, the control end of the relay output interfaces being connected with the master communication module; and a mechanical operating mechanism module including a contact system, an operating mechanism and an integrated state monitoring unit, the state monitoring unit including a contact electrical life monitoring circuit and a mechanical characteristic sensor, the output end of the state monitoring unit being connected with the data interface of the measurement and protection module.

[0007] In some preferred embodiments, the master communication module further includes: a redundant coprocessor physically isolated from the main processor, the redundant coprocessor jointly accessing the data bus inside the base with the main processor; the redundant coprocessor being configured with an independent memory unit and a watchdog circuit, the watchdog circuit being used to continuously monitor the instruction response signal and the memory check code of the main processor during system operation; the redundant coprocessor sending a switching control signal to a multiplexer placed between the main processor and the data bus when determining that the main processor is working abnormally, the multiplexer switching the access right of the master communication module to the data bus from the main processor to the redundant coprocessor; the communication unit sending a status data frame including the switching state and the identifier of the faulty processor to the external network after the switching event occurs.

[0008] In some preferred embodiments, the sub-processor of the measurement and protection module is implemented in a multi-core architecture, the multi-core architecture including at least a first processor core and a second processor core; the first processor core being configured to perform effective value calculation of current and voltage sampling values, the second processor core being configured to perform numerical comparison and condition judgment of the plurality of protection logics in parallel; the sub-processor further integrated with a non-volatile memory array, the non-volatile memory array being divided into a plurality of sectors for storing current transient values, voltage transient values, protection logic identifiers and time markers provided by a system clock in time sequence when triggering tripping decisions.

[0009] In some preferred embodiments, the frame buffer memory is integrated in the driving circuit of the touch display screen of the interaction and display module; The main processor of the master communication module writes the data to be displayed into the frame buffer memory according to a preset communication protocol through a data bus; The display layer of the touch display screen adopts a resistive or capacitive touch sensing structure, and the touch coordinate signals generated by the display layer are transmitted to the main processor of the master communication module; The main processor of the master communication module runs a permission verification program, which loads a corresponding user interface configuration file into the frame buffer memory according to the input credential data.

[0010] In some preferred embodiments, the load control and expansion module is provided with a programmable logic device, and the programmable logic device stores a user-defined linkage logic table; The input variables of the linkage logic table include remote instructions from the master communication module, time signals from an internal clock, electrical parameter threshold flag bits from the measurement and protection module, and external sensor states from the signal input interface; The output variables of the linkage logic table are used to control the switching state of the multi-channel relay output interface.

[0011] In some preferred embodiments, the state monitoring unit of the mechanical operating mechanism module includes: A contact resistance measurement circuit, the measurement terminals of which are connected to the fixed contact and the movable contact of the contact system; A Hall effect sensor integrated on the operating mechanism connecting rod, which is used to detect the displacement of the movable contact during the opening and closing process; and A stress strain gauge arranged on the operating spring; The data output terminal of the state monitoring unit sends the contact resistance value, displacement sequence and stress data to the data interface of the measurement and protection module at a preset sampling frequency.

[0012] In some preferred embodiments, an encryption chip for storing a unique identification code is integrated on the circuit board of the core function module; An authentication node is arranged on the data bus path of the base, and the authentication node is controlled by the main processor of the master communication module; When the core function module is inserted into the base, the main processor reads the identification code in the encryption chip through the authentication node, and performs string matching with the authorized list stored in the non-volatile memory of the master communication module; The main processor appends a cyclic redundancy check code generated based on the identification code in an instruction frame transmitted on the data bus.

[0013] In some preferred embodiments, the main processor of the master communication module identifies the sub-processor of the measurement and protection module as a coprocessor device by running a preset task scheduling program, and distributes fast Fourier transform calculation tasks to the sub-processor; The main processor identifies the programmable logic device of the load control and expansion module as a logic execution unit, and issues a logic control bit stream compiled by the main processor to the logic execution unit; The main processor periodically reads the load indication value in the module state register, and dynamically adjusts the queue order of the calculation tasks and logic tasks distributed by the main processor according to a preset priority strategy.

[0014] Advantages of the present application: (1) Based on the method proposed in the present application, the execution of the protection algorithm and the decision-making right of the trip judgment are delegated to a dedicated sub-processor, so that the module has independent protection capability at the physical level without relying on the master communication module (main processor) or data bus instructions. In the extreme case of complete failure of the master communication module or interruption of the base data bus communication, the measurement and protection module can still autonomously and quickly execute the trip judgment and drive the mechanical mechanism to act based on the local current and voltage sampling data, thereby ensuring the absolute reliability of the basic protection function at the bottom layer of the system architecture.

[0015] (2) Based on the modular design structure proposed in the present application, when any functional module in the system fails, maintenance personnel do not need to replace or repair the entire circuit breaker unit, but only need to pull out the faulty module from the base and insert a new functional module to quickly restore system operation. Compared with traditional whole-machine replacement, downtime is greatly shortened, maintenance process is simplified, and maintenance cost is significantly reduced. At the same time, the plug-in design of each module makes maintenance operations unnecessary without professional tools or complex wiring, effectively improving the maintenance efficiency of the circuit breaker. BRIEF DESCRIPTION OF DRAWINGS

[0016] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments made with reference to the accompanying drawings: Figure 1 is a schematic diagram of a modular intelligent circuit breaker according to an embodiment of the present application. DETAILED DESCRIPTION

[0017] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work are within the protection scope of the present application.

[0018] It should be noted that, in the description of the present application, the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0019] To solve this problem, please refer to Figure 1 The embodiment of the present application provides a modular intelligent circuit breaker, which comprises a base and a core function module pluggably assembled on the base, and the core function module comprises: a main control communication module integrated with a main processor and a communication unit, the main processor being in communication connection with each module through a data bus inside the base to perform data exchange and instruction routing between modules; a measurement and protection module integrated with a current sampling unit, a voltage sampling unit and a sub-processor with a built-in protection algorithm, the sub-processor being configured to process electrical parameters in parallel and make independent tripping decisions by calling the current sampling unit and the voltage sampling unit; an interaction and display module integrated with a touch display screen, a driving end of the touch display screen being connected with the main control communication module for receiving and displaying system status and fault information distributed by the main control communication module; a load control and expansion module integrated with a plurality of programmable relay output interfaces and signal input interfaces for connecting external sensors, a control end of the relay output interface being connected with the main control communication module; and a mechanical operating mechanism module comprising a contact system, an operating mechanism and an integrated state monitoring unit, the state monitoring unit comprising a contact electrical life monitoring circuit and a mechanical property sensor, an output end of the state monitoring unit being connected with the data interface of the measurement and protection module.

[0020] Specifically, the embodiment provides a modular intelligent circuit breaker, the architecture of which comprises a base and a plurality of core function modules pluggably assembled on the base. The base internally pre-buries a data bus and a power distribution network, providing a unified communication channel and power supply for all the modules plugged thereon. The electrical connection between the modules and the base is preferably realized through high-reliability reed contacts or gold finger interfaces to ensure the stability of contact resistance and plugging life.

[0021] In the embodiment, the master communication module serves as the control and information hub of the system, and a high-performance main processor (for example, an ARM Cortex-A series application processor can be used) and a multi-mode communication unit are integrated on the PCB thereof. The communication unit can integrate one or more of an Ethernet PHY chip, a 4G / 5G modem or a LoRa wireless module, for establishing a connection with an external cloud platform or a local gateway.

[0022] The main processor establishes a communication connection with all other modules in the system through the data bus (for example, a CAN FD or high-speed SPI protocol) inside the base. Its main responsibilities are to perform cross-module data exchange (such as collecting measurement data and issuing display information) and instruction routing (such as forwarding remote control commands to the load control module), and to manage the network identity and security policy of the system.

[0023] In the embodiment, the measurement and protection module has a current sampling unit (such as based on a high-precision Hall sensor or a Rogowski coil) and a voltage sampling unit integrated in the hardware thereof, for real-time acquisition of electrical parameters in the power grid line. The core of the module is a sub-processor (for example, an ARM Cortex-M series microcontroller or a dedicated digital signal processor DSP) with a protection algorithm firmware built-in.

[0024] The sub-processor is configured to directly call the data of the current and voltage sampling units, run multiple protection algorithms (such as overcurrent, overload and leakage protection algorithms) in a parallel processing manner, and independently make a tripping decision based on the algorithm results. This "independence" means that the tripping decision logic of the sub-processor does not depend on the instructions of the main processor of the master communication module. Once the tripping condition is met, the sub-processor will directly send a tripping instruction to the mechanical operating mechanism module through a dedicated hardware signal line (not shown in the figure), thereby realizing the highest level of response speed and reliability of the protection function.

[0025] In this embodiment, the interaction and display module provides a local human-machine interface. It integrates a touchscreen display (such as a TFT-LCD screen). The driver of the touchscreen display is connected to the main control communication module via the base's data bus. It does not directly process low-level measurement data, but is dedicated to receiving and displaying system status and fault information distributed by the main control communication module. This information, including real-time current / voltage values, power, alarm records, and system configuration menus, is summarized, formatted, and then sent out by the main processor.

[0026] In this embodiment, the load control and expansion module provides control and signal acquisition capabilities for external devices. It integrates multiple programmable relay output interfaces for controlling the on / off states of loads such as lighting and motors. It also provides signal input interfaces (configurable as digital or analog inputs) for connecting external sensors (such as temperature sensors and magnetic door switches). The control terminal of the relay output interface is connected to the main control communication module via a data bus to receive switching commands from the main processor. These commands can originate from remote control, preset logic, or touch operations from the local interaction module.

[0027] In this embodiment, the mechanical operating mechanism module is the mechanical body that performs circuit switching operations. Specifically, it includes a contact system, an operating mechanism (such as a spring energy storage mechanism), and an integrated status monitoring unit. The status monitoring unit is a key aspect of the invention's intelligence; it includes a contact electrical life monitoring circuit (which estimates wear by monitoring the arc characteristics and contact resistance during contact opening and closing) and mechanical characteristic sensors (such as Hall effect sensors for detecting opening and closing speeds or stress sensors for monitoring operating forces). The output of the status monitoring unit is directly connected to the corresponding data interface of the measurement and protection module via a local data interface (such as UART or ADC), transmitting the collected status data in real time to the subprocessor of the measurement and protection module for health status assessment and predictive maintenance analysis.

[0028] Specifically, during normal operation of the intelligent circuit breaker proposed in this embodiment, the main control communication module acts as the overall coordinator, managing data flow and user commands. The measurement and protection module continuously monitors electrical parameters, but its protection judgment is completely autonomous. When a severe short-circuit fault occurs, the subprocessor of the measurement and protection module will independently complete the judgment within milliseconds and directly command the mechanical operating mechanism module to trip. At the same time, it reports this fault event to the main control communication module via the data bus. The main control communication module then updates the system status and distributes the fault information to the interaction and display module for alarm display, while simultaneously sending an alarm notification to the remote management center through the communication unit. This effectively improves its flexibility and maintainability while ensuring safety.

[0029] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

[0030] In some embodiments, the main control communication module further includes: A redundant coprocessor physically isolated from the main processor, the redundant coprocessor and the main processor sharing the data bus inside the base; The redundant coprocessor is configured with an independent memory unit and a watchdog circuit. The watchdog circuit is used to continuously monitor the instruction response signal and memory check code of the main processor during system operation. When the redundant coprocessor determines that the main processor is malfunctioning, it sends a switching control signal to a multiplexer located between the main processor and the data bus. The multiplexer switches the access permission of the main control communication module to the data bus from the main processor to the redundant coprocessor. After a switching event occurs, the communication unit sends a status data frame, including the switching status and the faulty processor identifier, to the external network.

[0031] In some embodiments, the subprocessor of the measurement and protection module is implemented using a multi-core architecture, which includes at least a first processor core and a second processor core; The first processor core is configured to perform effective value calculation of current and voltage sample values, and the second processor core is configured to perform numerical comparison and condition judgment of the multiple protection logics in parallel; The subprocessor also integrates a non-volatile memory array, which is divided into multiple sectors for storing, in sequence, the instantaneous current value, instantaneous voltage value, protection logic identifier, and time stamp provided by the system clock when triggering the trip judgment.

[0032] In some embodiments, a frame buffer memory is integrated into the driving circuit of the touch display screen of the interaction and display module. The main processor of the main control communication module writes the data to be displayed into the frame buffer memory according to a preset communication protocol via the data bus. The display layer of the touch screen adopts a resistive or capacitive touch sensing structure, and the touch coordinate signal generated by the display layer is transmitted to the main processor of the main control communication module. The main processor of the main control communication module runs an access verification program, which loads the corresponding user interface configuration file into the frame buffer memory based on the input credential data.

[0033] In some embodiments, the load control and expansion module includes a programmable logic device, which stores a user-defined linkage logic table. The input variables of the linkage logic table include remote commands from the main control communication module, time signals from the internal clock, electrical parameter threshold flags from the measurement and protection module, and external sensor status from the signal input interface. The output variables of the linkage logic table are used to control the switching state of the multi-channel relay output interface.

[0034] In some embodiments, the status monitoring unit of the mechanical operating mechanism module includes: A contact resistance measuring circuit, the measuring terminals of which are connected to the stationary and moving contacts of the contact system; A Hall effect sensor integrated into the operating mechanism linkage is used to detect the displacement of the moving contact during the opening and closing process; and, Stress strain gauges are mounted on the operating spring; The data output terminal of the condition monitoring unit packages and sends the contact resistance value, displacement sequence, and stress data to the data interface of the measurement and protection module according to a preset sampling frequency.

[0035] In some embodiments, the circuit board of the core functional module integrates an encryption chip for storing a unique identification code; An authentication node is provided on the data bus path of the base, and the authentication node is controlled by the main processor of the main control communication module. When the core functional module is inserted into the base, the main processor reads the identification code in the encryption chip through the authentication node and performs string matching with the authorization list stored in the non-volatile memory of the main control communication module; The main processor appends a cyclic redundancy check code generated based on the identification code to the instruction frames transmitted on the data bus.

[0036] In some embodiments, the main processor of the main control communication module identifies the subprocessor of the measurement and protection module as a coprocessor by running a preset task scheduler, and distributes fast Fourier transform calculation tasks to the subprocessor. The main processor identifies the programmable logic device of the load control and expansion module as a logic execution unit and sends a logic control bit stream compiled by the main processor to it. The main processor periodically reads the load indication values ​​in the status registers of each module and dynamically adjusts the queue order of the computing tasks and logical tasks it distributes downwards according to a preset priority strategy.

[0037] It should be noted that the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code, which includes one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0038] The terms “first”, “second”, etc., are used to distinguish similar objects, not to describe or indicate a specific order or sequence.

[0039] The term "comprising" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, methods, articles, or apparatus / devices.

[0040] The technical solution of the present invention has now been described in conjunction with the preferred embodiments shown in the accompanying drawings.

[0041] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A modular intelligent circuit breaker, characterized in that, The system includes a base and a core functional module that is pluggably mounted on the base. The core functional module includes: The main control communication module integrates a main processor and a communication unit. The main processor establishes a communication connection with each module through the data bus inside the base to perform data exchange and instruction routing between modules. The measurement and protection module integrates a current sampling unit, a voltage sampling unit, and a subprocessor with a built-in protection algorithm. The subprocessor is configured to process electrical parameters in parallel and make tripping decisions independently by calling the current sampling unit and the voltage sampling unit. The interaction and display module integrates a touch screen, the driver of which is connected to the main control communication module to receive and display system status and fault information distributed by the main control communication module. The load control and expansion module integrates multiple programmable relay output interfaces and signal input interfaces for connecting external sensors; the control terminals of the relay output interfaces are connected to the main control communication module; and... The mechanical operating mechanism module includes a contact system, an operating mechanism, and an integrated condition monitoring unit. The condition monitoring unit includes a contact electrical life monitoring circuit and a mechanical characteristic sensor. The output of the condition monitoring unit is connected to the data interface of the measurement and protection module.

2. The modular intelligent circuit breaker according to claim 1, characterized in that, The main control communication module also includes: A redundant coprocessor physically isolated from the main processor, the redundant coprocessor and the main processor sharing the data bus inside the base; The redundant coprocessor is configured with an independent memory unit and a watchdog circuit. The watchdog circuit is used to continuously monitor the instruction response signal and memory check code of the main processor during system operation. When the redundant coprocessor determines that the main processor is malfunctioning, it sends a switching control signal to a multiplexer located between the main processor and the data bus. The multiplexer switches the access permission of the main control communication module to the data bus from the main processor to the redundant coprocessor. After a switching event occurs, the communication unit sends a status data frame, including the switching status and the faulty processor identifier, to the external network.

3. A modular intelligent circuit breaker according to claim 1, characterized in that, The subprocessor of the measurement and protection module is implemented using a multi-core architecture, which includes at least a first processor core and a second processor core. The first processor core is configured to perform effective value calculation of current and voltage sample values, and the second processor core is configured to perform numerical comparison and condition judgment of the multiple protection logics in parallel; The subprocessor also integrates a non-volatile memory array, which is divided into multiple sectors for storing, in sequence, the instantaneous current value, instantaneous voltage value, protection logic identifier, and time stamp provided by the system clock when triggering the trip judgment.

4. A modular intelligent circuit breaker according to claim 1, characterized in that, The interaction and display module integrates a frame buffer memory in the driving circuit of the touch screen. The main processor of the main control communication module writes the data to be displayed into the frame buffer memory according to a preset communication protocol via the data bus. The display layer of the touch screen adopts a resistive or capacitive touch sensing structure, and the touch coordinate signal generated by the display layer is transmitted to the main processor of the main control communication module. The main processor of the main control communication module runs an access verification program, which loads the corresponding user interface configuration file into the frame buffer memory based on the input credential data.

5. A modular intelligent circuit breaker according to claim 1, characterized in that, The load control and expansion module includes a programmable logic device, which stores a user-defined linkage logic table. The input variables of the linkage logic table include remote commands from the main control communication module, time signals from the internal clock, electrical parameter threshold flags from the measurement and protection module, and external sensor status from the signal input interface. The output variables of the linkage logic table are used to control the switching state of the multi-channel relay output interface.

6. A modular intelligent circuit breaker according to claim 1, characterized in that, The status monitoring unit of the mechanical operating mechanism module includes: A contact resistance measuring circuit, the measuring terminals of which are connected to the stationary and moving contacts of the contact system; A Hall effect sensor integrated into the operating mechanism linkage is used to detect the displacement of the moving contact during the opening and closing process; and, Stress strain gauges are mounted on the operating spring; The data output terminal of the condition monitoring unit packages and sends the contact resistance value, displacement sequence, and stress data to the data interface of the measurement and protection module according to a preset sampling frequency.

7. A modular intelligent circuit breaker according to claim 1, characterized in that, The circuit board of the core functional module integrates an encryption chip for storing a unique identification code. An authentication node is provided on the data bus path of the base, and the authentication node is controlled by the main processor of the main control communication module. When the core functional module is inserted into the base, the main processor reads the identification code in the encryption chip through the authentication node and performs string matching with the authorization list stored in the non-volatile memory of the main control communication module; The main processor appends a cyclic redundancy check code generated based on the identification code to the instruction frames transmitted on the data bus.

8. A modular intelligent circuit breaker according to claim 1, characterized in that, The main processor of the main control communication module identifies the subprocessor of the measurement and protection module as a coprocessor by running a preset task scheduling program, and distributes fast Fourier transform calculation tasks to the subprocessor. The main processor identifies the programmable logic device of the load control and expansion module as a logic execution unit and sends a logic control bit stream compiled by the main processor to it. The main processor periodically reads the load indication values ​​in the status registers of each module and dynamically adjusts the queue order of the computing tasks and logical tasks it distributes downwards according to a preset priority strategy.

Images