410 results about "Control bus" patented technology

An electronic circuit includes: an event detector logic circuit; a computing device; and a plurality of integrated circuit (IC) chips that are electrically connected in parallel between at least one control bus configured to provide input signals and the event detector logic circuit. The event detector logic circuit is configured to: receive a plurality of output signals from the plurality of IC chips, generate a data output signal that includes data obtained from a first output signal of the plurality of output signals, and transmit the data output signal to the computing device.

The invention provides a GNSS (Global Navigation Satellite System) anti-interference receiver system based on radio frequency front end-INS (Inertial Navigation System) combined assistance, which adopts a dual-core ARM Cortex-A9 and a programmable logic unit for layered decoupling, and realizes real-time receiving and processing of a high-bandwidth data stream, closed-loop control of an interference suppression link and quick response of a navigation path and a strategy decision. All the modules efficiently cooperate through AXI-Lite register mapping, interrupt signals, a shared state buffer area and a timer synchronization mechanism. By controlling bus and state buffer mapping to keep consistency and supporting a module-level independent debugging and system-level soft reset mechanism under hot start, the expandability of subsystem cascade debugging, fault module positioning and online updating is realized. In the aspects of module architecture, data channels and cooperation mechanisms, the structure order, efficient communication and control closed loop are realized, and an embedded multi-module cooperation anti-interference platform which is suitable for a high-interference environment, multi-channel fusion processing and navigation task real-time response is constructed.

The invention relates to the technical field of medical equipment, and discloses a multi-head transfusion intelligent switching control system, which comprises the following modules interconnected with a control bus through a data bus: a multi-source information binding module; a multi-modal sensing data fusion module; an intelligent safety control module; an edge-cloud collaborative decision module; a human factor engineering interaction module; a system full life cycle management module; and an infusion pipeline switching execution mechanism. Through the multi-mode sensing fusion and real-time data processing technology, the whole-course automatic monitoring of the infusion progress, the flow speed and the remaining medicine amount is achieved. The nurse station central billboard and the mobile terminal synchronously display infusion states of all beds, sound-light alarm is triggered in time when abnormal conditions occur, manual patrol video frequency is remarkably reduced, an edge computing node is applied to carry out localized data analysis, and it is ensured that alarm response delay is lower than a clinical safety threshold value. And the problem of low efficiency caused by manual regular patrol traditionally is effectively solved.

The invention discloses a self-calibration high-resolution PWM (Pulse Width Modulation) signal generating circuit, which belongs to the field of electronic circuits and comprises a PWM signal generating module, a high-resolution module, a calibration module, a register module and an AHB (Advanced High-performance Bus) interface. The PWM signal generation module generates a coarse adjustment PWM signal based on a comparison result of the comparison register and the counter; and the high-resolution module performs fine edge positioning on the coarse adjustment PWM wave to generate a fine adjustment PWM signal. Under the condition that the clock frequency is not changed, the high-resolution module can improve the resolution of the PWM signal. The calibration module has a high-resolution calibration function, and the high-resolution calibration function can avoid the deviation of a delay value caused by the environment and ensure the accuracy and stability of the high-resolution PWM. The register module is responsible for register read-write control. The AHB bus interface part is responsible for processing bus interface signals. The self-calibration high-resolution PWM signal generation circuit has the advantages of being high in precision, high in stability, easy to IP and the like.

The invention provides a server mainboard and a link management method, which can be applied to the technical field of servers. The server mainboard comprises: at least one server node, which comprises a host bus interface and a programming bus interface; the connector is electrically connected with the at least one expansion board through a cable; the first controller comprises a control bus interface and is used for receiving the link bit number information sent by the at least one expansion board and carrying out misplug verification on the at least one expansion board; the link control module is used for determining a service node bus interface from the host bus interface and the programming bus interface based on the received in-place signal of the at least one expansion board, and taking the service node bus interface as a target bus interface in a first time period; and taking the control bus interface as a target bus interface in a second time period different from the first time period, so that a target link for transmitting a target serial bus signal is formed between the target bus interface and the connector.

The invention provides a universal measurement and control system data flow control bus architecture method and system, and relates to the technical field of measurement and control, and the method comprises the steps: distributing independent address spaces for a plurality of driving modules through a main control module, building a parameter mapping table and a buffer region, and enabling a plurality of test channels to share an interrupt signal and store the interrupt signal in an interrupt vector register; generating an interrupt signal based on a relationship between the buffer data volume and a threshold; sequencing according to the channel priority reference value, and dynamically adjusting the priority based on the load rate; and the main control module determines an interrupt source according to the interrupt vector and dynamically adjusts a prefetching strategy according to the measurement and control data flow. The system data processing efficiency and the resource utilization rate are improved.

The present invention relates to an image display device. An image display device according to one embodiment of the present invention comprises a display, and a signal processing device that outputs data to the display, wherein a first interface in the signal processing device comprises a first terminal and a second terminal for bidirectional communication, and at least one of the first terminal and the second terminal shares an interface monitor signal and a system control bus signal. Accordingly, it is possible to perform integrated support of control data and the like, and thus cable wiring can be simplified.

The invention discloses an LDPC (Low Density Parity Check) coding and decoding system and method for high-density tape storage, and the system comprises a main controller which is used for scheduling coding and decoding mode switching and module cooperative control; the storage and calculation integrated array is used for executing zero-carrying storage calculation; the ping-pong buffer framework is composed of an input buffer module Buffer A and an output buffer module Buffer B; the dynamic code length extension module is used for reconstructing a cascade link; the preprocessing module is used for converting the noisy code word into a log likelihood ratio (LLR) value; the hard decision module is used for converting the VN message into user data; the main controller is connected with all the modules through a control bus, and the dynamic code length extension module controls the power state and interconnection topology of the sub-arrays. According to the LDPC coding and decoding system and method based on the storage and calculation integrated array, zero-carrying calculation is achieved, iterative decoding is accelerated through a ping-pong buffer architecture, and the code length is flexibly configured through the dynamic code length extension module, the coding and decoding efficiency of high-density tape storage is improved, delay and energy consumption are reduced, meanwhile, multi-code-length self-adaption is supported, and high performance and flexibility are considered.

The invention relates to the technical field of pulse resistance measurement, in particular to a Poe-based pulse type charging and discharging battery internal resistance measurement method. The method comprises the following steps: acquiring a total current state signal and a charging state signal of a battery pack in real time through a controller, and analyzing the total current state signal and the charging state signal to obtain a charging mode identifier; judging whether the battery pack is in a charging state or an idle state based on the charging mode identifier, if the battery pack is in the charging state, activating a bus power supply mode, and acquiring module working electric energy from a control bus through a Poe network interface; and when the charging state is judged, controlling the pulse injection unit to superpose high-frequency pulse charging current to the battery pack, and synchronously acquiring voltage transient data and current waveform data in a pulse action period according to the working electric energy of the module. Through high-frequency pulse charging and discharging, real-time internal resistance calculation and dynamic state monitoring, the problems of hysteresis, insufficient precision and difficult state judgment in traditional battery internal resistance measurement and health assessment are solved.

The invention discloses a memory signal integrity enhancing system based on multi-dimensional parameter self-adaption, and belongs to the technical field of signal transmission. The system comprises a multi-dimensional signal acquisition module, a multi-dimensional parameter analysis module, a self-adaptive adjustment module, a memory signal optimization module and a feedback monitoring module, the multi-dimensional signal acquisition module is combined with multi-dimensional parameter analysis, signals of a data bus, an address bus and a control bus are synchronously acquired, a dynamic adjustment strategy is generated according to a model, and the self-adaptive adjustment module and the memory signal optimization module are optimized according to the dynamic adjustment strategy. Different optimization means are adopted for different parameter types, a customized optimization system with one parameter and one scheme is formed, it is ensured that the optimized target signal is optimal in amplitude stability, time sequence accuracy, anti-noise capacity and impedance matching degree, the feedback monitoring module is combined with the multi-dimensional parameter analysis module, and the multi-dimensional parameter analysis module is combined with the feedback monitoring module. And through full-dimension index monitoring and dynamic calibration, the continuous adaptability of the system to the running state of the memory and the long-term stability of signal integrity are guaranteed.

The invention relates to the technical field of industrial control, and provides an industrial control data transmission method and an industrial control bus communication architecture. According to the method, high-speed Ethernet communication is adopted between a gateway module and an industrial controller, networking is conducted between the gateway module and a first type of industrial equipment through a user-defined protocol, a communication network achieved through a serial bus is obtained, the gateway module receives industrial control data from the industrial controller through the Ethernet, and the industrial control data are transmitted to the first type of industrial equipment. After the industrial control data is converted into serial data frames, the serial data frames are sequentially transmitted to each first type of industrial equipment by using the serial bus, so that the control data of the industrial controller is issued to the industrial equipment by using a low-cost and quickly-established network; and when the programmable extension industrial equipment is randomly added into the industrial control system, networking can be rapidly carried out on the industrial control system, so that the expansibility is greatly improved on the basis of ensuring the industrial control response performance, and the transmission efficiency of the industrial control data is improved.

The invention provides a universal heterogeneous data processing platform and a control method thereof. The universal heterogeneous data processing platform comprises a man-machine interaction module, a calculation processing module, an information exchange module, an intelligent processing module, a storage processing module, a signal processing module and an interface processing module. The rear end of the man-machine interaction module is connected with the front end of the calculation processing module, the rear end of the calculation processing module is connected with the front end of the information exchange module, the information exchange module is connected with the intelligent processing module, the signal processing module and the storage processing module, and the rear end of the interface processing module is connected with the front end of the signal processing module. According to the information exchange design, the independent control bus, the independent data bus and the independent management bus are adopted for achieving information exchange with all the modules, the expandability of the platform is improved, information interference is reduced, and the information exchange efficiency of the platform is improved.

The invention relates to the technical field of digital information transmission and the like, and provides a parallel operation automatic stacking addressing method and system based on BMSCAN communication, networking is carried out by monitoring a CANH bus and controlling a CANH bus switch to transmit information of a next BMS to obtain and distribute an MAC address, a movable device connected to an uninterruptible power supply is automatically set as a BMS host, an initial address is distributed to the BMS host, and the automatic stacking addressing method and system based on BMSCAN communication are achieved. And the BMS host sends an address allocation message to the current BMS slave to be networked according to an address request message sent by the current BMS slave to be networked and the currently allocated address range, and the current BMS slave to be networked completes address allocation and feeds back an address confirmation message to the BMS host according to the address allocation message, so that the BMS host updates the allocated address range, and the BMS slave to be networked is networked. And collecting the multi-dimensional slave monitoring data of all the BMS slaves in work for intelligent identification until the addresses of all the to-be-networked BMS slaves are automatically allocated, so as to perform accurate control and optimal management on the battery pack, thereby realizing intelligent management and optimal control of the battery pack.

The invention relates to the technical field of wireless communication, and discloses a sensing radio front-end radio frequency signal detection system, which comprises a broadband radio frequency front-end module used for receiving radio frequency signals in an environment and supporting multi-band signal capture and anti-interference preprocessing; the analog-to-digital conversion module is used for converting the radio frequency signal into a digital signal by adopting an ADC (Analog to Digital Converter) with 14-bit resolution and 2GSPS sampling rate; the signal processing module is connected to the output end of the analog-to-digital conversion module and is used for performing spectrum analysis, feature extraction and signal detection on the digital signal and outputting a detection result; and a synchronous control bus. According to the method, energy detection, cyclostationary feature analysis and a deep learning classification algorithm are fused, a time-frequency domain joint analysis framework is constructed, and the time domain transient feature extraction capability of the 1D-CNN and the frequency domain long-range dependence modeling advantage of Transform are combined, so that high-precision recognition of complex modulation signals is realized, and the detection sensitivity and the anti-interference capability are improved.

The invention discloses a circuit and a method for realizing current sharing through master-slave parallel connection, and the method is characterized in that a master machine and a plurality of slave machines are connected in parallel, and are respectively connected to a current sharing control bus through an isolation chip, a TTL and differential mutual conversion unit and an information gating switch in sequence, thereby forming a parallel current sharing circuit; comprising a host issuing current reference circuit and a processing circuit after a slave receives a current reference signal from the host. After a plurality of instrument power supplies are connected in parallel, a user sets a master-slave parallel mode on a front panel of the power supplies and selects a master computer, and other computers are slave computers; when a plurality of power supplies work in parallel, the host issues a current reference signal to the current sharing control bus through the current reference generation circuit, and the slave outputs a corresponding current value according to the current reference signal issued by the host. One of a plurality of power supply modules can be randomly selected as a main module, the flexibility is high, the stability is good, and the power supply has the characteristics of simplicity in wiring and control, low transmission loss of control signals, difficulty in interference of the control signals, balanced output control of all the power supply modules and the like.

The invention provides a whole bus-based agile satellite platform and a construction method thereof. The whole bus-based agile satellite platform comprises a bus, an integrated electronic computer, a power supply controller, a data server and subsystems, the bus comprises a satellite control bus, a satellite power bus and a high-speed information bus; a comprehensive electronic computer serves as a control center management satellite control bus, a power supply controller serves as an energy control center management satellite power bus, and a data server serves as a data interaction center management high-speed information bus. Each subsystem of the satellite platform carries out interaction between a remote control instruction and telemetering data through a control bus, carries out energy supply and instruction pulse output through a power bus, and carries out mass data distribution and interaction through a high-speed information bus. According to the invention, a satellite platform realizes satellite interface generalization and standardization by using a full-bus design, platform single-machine rapid integration and whole-satellite efficient test are supported, the supported load type can be flexibly configured, and the method has agility and engineering value.

The invention discloses a fire-fighting system equipment control bus communication protocol test platform and test method, a fire-fighting event generation unit sends a fire-fighting event to a communication protocol converter, the fire-fighting event is sent to a controller through the communication protocol converter, and a test result of a communication function of the controller is judged through a display result of the controller; and the controller sends the successfully received fire-fighting event to the fire-fighting networking simulation unit through the communication protocol converter, and judges the test result of the fire-fighting networking function of the controller through the display result of the fire-fighting networking simulation unit. According to the invention, fire-fighting linkage system equipment and networking equipment are simulated, and all standard communication protocol events are automatically sent and received; the fire-fighting system equipment control bus communication conformity of the controller is judged by observing the display consistency of the controller and the fire-fighting networking simulation unit, and a complete and efficient solution is provided for the controller to carry out standard protocol debugging and testing of the communication function and the networking function of the fire-fighting system equipment.

The invention belongs to the technical field of intrusion detection, and relates to a vehicle internal network intrusion detection method, system and device and a storage medium, and the method comprises the steps: 1) carrying out the data mining of a data flow of a vehicle internal area control bus network CAN in a normal state, and generating a detection rule, so as to form a rule base; 2) generating a forged node and data containing the forged node by using a honeypot system, and injecting the data containing the forged node into a real-time data stream of an in-vehicle regional control bus network CAN; 3) detecting the real-time data flow of the area control bus network CAN in the vehicle through the rule base; 4) verifying the data which does not pass the detection of the rule base and has the same node ID as the forged node ID by the honeypot system; and 5) sending the data which does not pass the verification of the honeypot system to an alarm response module for response so as to realize intrusion detection. Rapid detection of intrusion can be realized, and injection data forged by a honeypot system can be prevented from being misjudged.

The invention discloses a switching power supply, and aims to generate a small current to charge an output capacitor by controlling the working state of a bus protection switch in a short circuit detection stage, so as to judge whether a short circuit occurs by detecting whether an output voltage can rise to a preset value or not. According to the short circuit detection method, bus detection resistance and differential sampling are not needed, the design difficulty of chip pins and chips can be reduced, secondly, in the soft start stage, the power-on time is prolonged, the peak value of the charging current of the output capacitor is reduced, the voltage of the output capacitor is made to rise slowly, the rising slope of the output voltage is reduced, and therefore the output voltage is improved. Therefore, the output voltage reaches the level equal to the input voltage, loss in the soft start process is reduced, the system efficiency is improved, and the safety is high.

The invention provides a modularized energy storage system testing platform and method, belongs to the field of energy storage system testing, and solves the problems of poor testing compatibility, low automation degree and the like of an existing energy storage system. The platform comprises a test console, a double-dragging module A, a double-dragging module B, a double-dragging module C and a countercurrent device which are respectively connected with a control bus and a communication bus, the method comprises the following steps: importing the specification of a to-be-tested energy storage system; electrical monitoring comprehensive decision making; recommending the to-be-tested energy storage system tool configuration optimal scheme; judging whether to test according to the recommended configuration scheme; judging whether the system is a string type energy storage system; testing step production of the string type energy storage system; testing step production of the centralized energy storage system; detecting and switching; automatic testing; judging whether the test passes or not; and judging whether the test tool is abnormal or not. According to the invention, compatibility in-loop testing of the string type energy storage system or the centralized type energy storage system can be automatically carried out on different battery configurations, PCS configurations and transformation module configurations.

The invention belongs to the field of industrial control and computer data security, and particularly relates to a millisecond-level power failure data protection system for an industrial control panel. The invention discloses a millisecond power failure data protection system for an industrial control panel. The millisecond power failure data protection system comprises a core processing component, a real-time synchronous shadow memory component, a bus voltage monitoring component, a pre-entropy reduction logic control component, a nonvolatile storage component and a flight control bus arbitration component. The bus voltage monitoring assembly monitors a voltage drop trend and performs early warning, the pre-entropy reduction logic control assembly calculates a minimum data survival set according to energy entropy, the real-time synchronous shadow memory assembly constructs a synchronous shadow control domain and atomizes data, and the flight control bus arbitration assembly compulsively takes over a bus and freezes processor access at the moment of power failure. Atomized writing of data into the nonvolatile storage component is guaranteed. According to the invention, zero-delay data protection and millisecond-level hot start recovery at the moment of power failure are realized, and the data security and reliability of the industrial control equipment in a severe environment are enhanced.

The invention relates to the technical field of computer system simulation, in particular to a simulation system based on a hierarchical transaction-level modeling protocol. The simulation system based on the hierarchical transaction-level modeling protocol comprises a control module, a data module and an adaptation module, the control module is a central management unit, is connected with the data module and the adaptive module through a control bus, and is used for managing load information of each node and realizing a time sequence management mechanism; the data module is a core communication hub, comprises a transaction-level modeling protocol stack and is connected with the adaptation module through a transaction bus; and the adaptive module is an equipment interaction layer, comprises a protocol conversion unit, is connected with the external simulation module or equipment through the corresponding protocol conversion unit, and is used for converting a signal connected with the physical bus into a transaction bus signal. According to the simulation system based on the hierarchical transaction-level modeling protocol, the simulation time precision is improved, the expansibility is improved, and the development and maintenance cost is reduced while the simulation efficiency is effectively improved.

The invention discloses a power system automation equipment network card hardware architecture and a message processing method and system, and the system comprises a network interface subsystem, a hardware encryption / decryption subsystem, a programmable network processor subsystem, a management control subsystem, a message information memory, a message processing strategy table, an equipment interface subsystem, an internal bus and a power supply circuit. And the subsystems are interconnected through a data bus and a control bus for data interaction. The network card equipment based on programmable network processing can adapt to various industrial communication networks, analyze and process received messages, realize network traffic flow sensing and security defense capabilities, realize deep sensing and preprocessing of network messages through hardware network processing acceleration under the condition of not influencing the communication performance of the equipment, and improve the communication efficiency of the equipment. Flexible message distribution is achieved, flexible expandability is achieved, and new technologies and equipment are easy to integrate; hardware encryption and security protection measures meet the urgent demand of security protection enhancement of the novel power system.

The invention provides an AC soft start control method of a three-phase four-bridge-arm topology. The method comprises the following steps: S1; the power grid access state of the energy storage inverter is obtained, the power grid access state is identified according to alternating current incoming line modes, and the alternating current incoming line modes comprise a single-phase incoming line mode and a three-phase incoming line mode; a single-phase incoming line mode is adopted to control bus voltage, and the bus voltage is gradually increased to a target value; and after the bus voltage is stable, the three-phase incoming line mode is switched to continuously control the bus voltage to be output to a set value. Firstly, by slowly increasing the bus voltage and the output voltage in stages, the current peak value in the system starting process is remarkably reduced, and the impact current can be reduced by 30%-50%, so that a power device and a bus capacitor are effectively protected, and device damage caused by large current impact is avoided. And secondly, a dynamic neutral point compensation technology is introduced, so that the waveform quality of the output voltage is remarkably improved, the total harmonic distortion (THD) is lower than 3% and is superior to the performance which is usually higher than 5% in a traditional method, and the electric energy quality and the operation stability of the system are improved.

The invention relates to the technical field of embedded systems and signal acquisition, in particular to a high-speed AD acquisition system and method based on MCU and FPGA time division multiplexing. A change-over switch is integrated in an FPGA processor, the change-over switch is used for communicating an ADC SPI interface with an SPI interface of an MCU controller in a parameter configuration stage and communicating the ADC SPI interface with main control logic in the FPGA processor in a high-speed acquisition stage, and the FPGA processor is further provided with a high-speed parallel bus interface which is used for being connected with a parallel bus interface of the MCU controller in a data reading stage. And batch transmission of the cached data is realized. Physical path isolation is achieved through the change-over switch in the FPGA processor, it is ensured that the MCU controller is completely separated from the AD control bus in the high-speed collection stage, time sequence interference and bus conflict caused by the AD control bus are fundamentally avoided, and the stability and data integrity of the collection process are guaranteed.

The embodiment of the invention provides a bus device power supply control method and device, a storage medium and an electronic device.The method comprises the steps that the power supply state of a connected bus device power supply is detected, and the power supply state is used for indicating the relation between the voltage output by the bus device power supply and a target voltage threshold value; under the condition that the power supply state is used for indicating that the voltage output by the bus equipment power supply is smaller than or equal to a target voltage threshold value, a target object where a target fault causing the power supply state is located and a target fault type to which the target fault belongs on the target object are detected, and the target object comprises the bus equipment or the bus equipment power supply; and controlling the operation of the bus equipment power supply according to the target object and the target fault type. According to the method and the device, the problem of relatively low running safety of the bus equipment power supply is solved, so that the effect of improving the running safety of the bus equipment power supply is achieved.

The invention discloses a transient performance enhancement-oriented multi-spacecraft attitude cooperative tracking control method, which provides a fixed time controller through an inversion control strategy, realizes quick response of a multi-spacecraft attitude system, and ensures that a consistency error is converged to a sufficiently small domain within fixed time. A fuzzy weight updating law is designed, dependence on system model information is reduced, and adaptability and high robustness are achieved. According to the asymmetric fractional obstacle Lyapunov function, adherence of multiple spacecrafts to time-varying constraints is guaranteed, meanwhile, the problem that the control amplitude related to a large constraint boundary in a traditional logarithmic obstacle Lyapunov function is too large is solved, and therefore the proposed method can process constrained and unconstrained scenes. A saturation threshold event triggering strategy is designed, a multi-spacecraft system is allowed to select three different triggering strategies by adjusting parameters, the transmission frequency of control signals is flexibly changed, and control bus resources are reasonably distributed.

The invention discloses a permanent magnet motor direct torque control method and system based on model prediction and a medium, and belongs to the technical field of permanent magnet synchronous motor control. According to the permanent magnet synchronous motor direct torque control method based on model prediction, two-phase current of a permanent magnet synchronous motor is processed by constructing a Clarke transformation model, a flux linkage and torque model, a voltage vector optimization model, a switching time calculation model, a cost function minimization model and a three-phase inverter control model, a space voltage vector is determined, and the direct torque of the permanent magnet synchronous motor is obtained. And switching action information of a switching tube is obtained and is used for controlling bus voltage to be input into the permanent magnet synchronous motor, so that the permanent magnet synchronous motor is driven, and direct torque control of the permanent magnet synchronous motor based on model prediction is completed, and therefore, the switching state of a switch can be controlled to be optimal, and torque pulsation is effectively reduced; therefore, the system operation efficiency is effectively improved, the system stability is improved, the switching loss is reduced, and the scheme is scientific, reasonable and feasible.

The invention relates to the technical field of intelligent control network application programming, and discloses an application programming method based on an ArtNet module, which is applied to an intelligent control network. The method comprises the steps that an ArtNet module storage medium is partitioned, firmware is received and verification information is stored, the validity of the firmware is judged, the firmware is transmitted to a main controller according to a preset upgrading protocol, the main controller distributes updates, and the ArtNet module clears temporarily stored data. According to the application, the intelligent control network master controller is an internal communication bus master device, the function nodes maintain the original access logic, only an ArtNet module is newly added as a slave device to access the internal bus, an independent communication link is established through a universal interface and the master controller, the Ethernet and the external control bus are externally connected, original hardware and an IAP protocol do not need to be changed, and the communication efficiency is improved. Equipment transformation and code rewriting cost caused by module expansion are avoided; based on the programming process, original IAP logic is not interfered, repeated burning caused by data residue is avoided, and the method is suitable for firmware upgrading of intelligent control networks such as moving head lamps, stage lighting and intelligent lighting.

The invention provides a microprocessing system and a program execution method, the microprocessing system comprises a microprocessor, an external random access memory and a read-only memory, and the address range of the external random access memory is overlapped with the address range of the read-only memory; wherein the microprocessor, the external random access memory and the read-only memory are connected to three groups of buses, and the three groups of buses are a control bus, an address bus and a data bus; the data bus and the address bus are respectively provided with a path switching circuit, and the path switching circuits are used for switching a program in the read-only memory to the external random access memory for execution by switching a program access path of the microprocessor. According to the technical scheme, the program reading and executing speed of the microprocessor can be improved.