20 results about "Embedded software systems" patented technology

The invention discloses an embedded software system architecture and an application method. The software system architecture comprises a system layer, and an application layer, a code link layer, a function module layer, a universal peripheral access layer and a hardware driving layer which are sequentially ranked from top to bottom. The system layer interacts with other layers to provide systematic services; the application layer is used for dividing a first task and running the first task; the code link layer is used for linking codes of the application layer and bottom layer codes; the functional module layer is used for managing functional components and lower-layer interfaces; the universal peripheral access layer is used for dividing and running a second task associated with the underlying code; and the hardware driving layer is used for driving the chip and the chip peripherals and packaging a driving interface. According to the method, the architecture of each level is simple, each level has different functions, the implementation cost is low, design cutting and expansion can be carried out according to the design requirements of an actual system architecture, cross-field application can be realized, and the portability and universality are high.

The invention provides an EtherCAT slave station gateway for semiconductor temperature control equipment. The EtherCAT slave station gateway comprises a hardware layer and a software layer, wherein the hardware layer comprises an embedded semiconductor industrial equipment communication gateway, an integrated power supply module, a main control module, an Ethernet communication module, an EtherCAT slave station module and a 24V input and output port module; the software layer is an embedded software system with a layered architecture, is divided into an application layer, a protocol layer and a hardware abstraction layer, and realizes business logic processing, communication protocol conversion and software and hardware interaction decoupling. Through cooperative work of hardware and software, data transmission based on the EtherCAT protocol between the semiconductor production equipment host and the Chiller can be achieved, the real-time performance, accuracy and system maintainability of data transmission are improved, and the requirements of semiconductor production for high precision and high stability of temperature control are met.

The invention relates to the technical field of embedded software systems, and provides a file management method and system based on NOR Flash, and the method comprises the steps: dividing the NOR Flash into a linked list area and a data area, setting a plurality of first sectors in the linked list area, and setting a plurality of second sectors in the data area; reserving an erasing transfer sector in the linked list area; when the corresponding first sector of the linked list area is updated and filled with one type of management information, partial management information in the corresponding first sector in the linked list area is transferred and erased based on the reserved erasing transfer sector; and when a plurality of second sectors corresponding to the data area are fully written with one type of data content, erasing the data content written in the second sectors corresponding to the previous part according to the sequence of written data, and retaining the data content written in the second sectors corresponding to the later part. According to the method, the space is pre-allocated for each file, meanwhile, the erasing balance is considered, and the method is suitable for a single-chip microcomputer system with shortage of resources.

The invention discloses a vehicle-mounted embedded software system demand analysis and detection method, device and equipment based on a large model and a storage medium, and relates to the technical field of software system demand analysis. Determining software system demand preprocessing data based on the software system demand data; determining a vehicle-mounted software system demand analysis detection model and a detection demand state based on the software system demand data and the software system demand preprocessing data; and detecting the performance of the system based on the vehicle-mounted software system demand analysis and detection model and the detection demand state to complete demand analysis and detection. According to the method, the software demand data is intelligently processed by using the automatic script, and the demand state of the vehicle-mounted software system is analyzed and detected in combination with the pre-trained large model, so that the system performance is evaluated, the demand analysis efficiency and accuracy are improved, and the model is continuously optimized through a feedback mechanism to adapt to the software demand change.

The invention relates to the technical field of embedded software development, and discloses an embedded software test verification method and system based on a virtual simulation environment, and the method comprises the steps: configuring a virtual embedded board card through distributed nodes according to a test demand, and carrying out containerization deployment, the time of the virtual embedded board cards of the distributed nodes is kept consistent through a time synchronization mechanism; constructing a cross-linking relation of each application software system based on blueprint design, generating a configuration file, and deploying software configuration items, external interfaces and functional modules of the tested embedded software system; data communication based on multiple bus protocols among the distributed nodes is executed through the communication middleware; simulating an external excitation signal to access the virtual simulation environment, and performing data input excitation verification on the embedded software; bus data in the testing process are collected and stored, the data are analyzed and evaluated, and the testing process is visually monitored. According to the invention, full-digital test verification of embedded software can be realized.

The present invention provides a method and device for eliminating the mis-triggering of multi-core DSP interrupts. The method comprises: setting an interrupt label L corresponding to core n n , n=1,…,N‑1, N is the number of cores in the multi-core DSP; set L in the interrupt service routine of core 0 n =1, n=1,…,N-1; at the beginning of the interrupt service routine of core n, read L n If the value of L n =1, then L n Clear to zero and execute subsequent program code; if L n = 0, directly exit the interrupt program; n = 1, 2, ..., N-1. This invention effectively solves the problem of repeated false triggering of interrupts between cores in multi-core DSP embedded software. When a core generates repeated false triggering of interrupts, its interrupt service routine is immediately exited, and no false triggering occurs on subsequent cores. This allows the program in this core and other cores to run stably, ensuring the high reliability of the multi-core DSP embedded software system.

The application discloses a kind of generation methods of customized software system.Compiles complete embedded software system, and each software module generates static library file in output directory.For current customer, customer-level open source software module and customer-level closed source software module are divided.New target path is established.For customer-level open source software module, customer-level closed source software module and system-level closed source software module, different contents are copied into target path.In the subdirectory of each customer-level closed source software module under target path, the original GN construction configuration file config.gni is modified.All files and subdirectories under target path constitute the customized embedded software system for current customer.The application distinguishes the software module open source or closed source for customer by whether there is source file or the original or modified GN construction configuration file, and is simple and convenient to realize and manage.

The invention relates to the technical field of key detection, and discloses a key event detection method and system, electronic equipment and a storage medium, and the key event detection method comprises the steps: checking the key states of all keys every preset period; setting or resetting the corresponding key mark according to the key state; detecting a setting mark of the key every other preset period to obtain a key state count value; and determining a key event correspondingly executed by the key according to the detection result of the setting mark and the key state count value. According to the key event detection method, different key events can be accurately detected, so that an embedded software system accurately responds to different key events, and the working efficiency and the response speed are improved.

The invention belongs to the technical field of embedded system application, and particularly relates to an underground unmanned aerial vehicle turning positioning device and a use method. The device is characterized by comprising a chip scale packaging radio frequency transmitting module, a magnetic ID installation accessory, a multi-channel position receiving module, a transmitting device embedded software system and a receiving device software system. The 2.4 G frequency band wireless radio frequency technology is combined with an ultra-low power consumption embedded system, after a radio frequency device is installed at the determined position, when a vehicle passes, receiving equipment in the vehicle receives a radio frequency signal, and the absolute position of a curve in a mine, the distance relative to the emission position and the safe curve entering speed are decoded according to radio frequency information.

The invention provides an embedded software development method, device, equipment and medium, and relates to the technical field of embedded software developing.The method comprises the steps that a demand model of a to-be-developed embedded software system is established according to demand analysis of an embedded software system program, a design model is derived according to the demand model, and the to-be-developed embedded software system is developed according to a test standard; setting unit test attributes for the minimum processing unit in the design model, generating a unit test case model, and creating a system test case model based on the demand model; and respectively customizing software templates of a demand model, a design model, a unit test case model and a system test case model of the embedded software system, respectively importing the software templates corresponding to the models into the demand model, the design model, the unit test case model and the system test case model, and respectively generating software documents corresponding to the models. According to the method, the research and development efficiency is improved, the function point tracking consistency is ensured, and the embedded software development model multiplexing technology in the same field is realized.

The application provides a gateway domain controller-based embedded software system across hardware platforms, comprising an ARM processor and an MCU microcontroller configured on an SVN server; a plurality of library files of hardware modules are integrated in the form of folders in the driving layer of the ARM processor; a plurality of hardware directories are included in the application layer of the ARM processor, each hardware directory stores function codes, and the function codes stored in the same hardware directory have the same function; a plurality of chip kernels are integrated in the form of folders in the driving layer of the MCU microcontroller, and each chip kernel corresponds to a hardware module; a plurality of chip directories are included in the application layer of the MCU microcontroller, each chip directory stores function codes of chip modules corresponding to a plurality of chip kernels, and the plurality of function codes stored in any chip directory have the same function, so that the effect of developing a plurality of hardware platform projects on a single hardware platform is achieved.

The present invention discloses an embedded software system architecture and application method, wherein the software system architecture includes: a system layer and an application layer, a code link layer, a function module layer, a general peripheral access layer and a hardware driver layer, which are arranged in order from top to bottom. The system layer interacts with other layers to provide systematic services; the application layer is used to divide the first task and run the first task; the code link layer is used to link the code of the application layer and the underlying code; the function module layer is used to manage functional components and lower-layer interfaces; the general peripheral access layer is used to divide and run the second task associated with the underlying code; the hardware driver layer is used to drive chips and chip peripherals and encapsulate the driver interface. In the present invention, the architecture of each layer is simple and each layer performs different functions, the implementation cost is low, and the design can be tailored and expanded according to the actual system architecture design requirements, and cross-domain applications can be realized, with strong portability and versatility.

The application relates to the technical field of embedded software systems, and provides a NOR Flash-based file management method and system.The method comprises the following steps: NOR Flash is divided into a linked list area and a data area, the linked list area is provided with a plurality of first sectors, and the data area is provided with a plurality of second sectors; an erasing transfer sector is reserved in the linked list area; when the corresponding first sectors of the linked list area are updated to be full of a type of management information, part of the management information in the corresponding first sectors of the linked list area is transferred and erased based on the reserved erasing transfer sector; and when the corresponding second sectors of the data area are written full of a type of data content, the data content written in the corresponding second sectors in the front part is erased according to the order of writing data, and the data content written in the corresponding second sectors in the rear part is reserved.The application pre-allocates space for each file, simultaneously considers erasing balance, and is suitable for a single-chip microcomputer system with resource shortage.

This application discloses an embedded software system for battery management, relating to the new energy field. The software system includes a human-machine interface layer that receives operation commands and displays the current status and battery data of the battery cluster; an interface encapsulation layer that encapsulates external interfaces and sends the encapsulation results to the human-machine interface layer, and receives operation commands; a logic processing layer that calls the corresponding battery model according to the operation commands, applies battery management strategies, generates control commands, determines the current status and battery data of the battery cluster, and sends them to the human-machine interface layer through the interface encapsulation layer; a device access layer that uniformly encapsulates the communication protocols of battery management systems from different manufacturers, accesses the corresponding device operation interface according to the control commands to obtain parameters of the preset hardware interface, and generates call commands; and a hardware interface layer that performs secondary encapsulation of the preset hardware interface and sends corresponding preset data to the preset hardware interface according to the call commands. This application facilitates maintenance of different projects.

The navigation system design provided by the invention comprises navigation equipment composition, a sensor data fusion method, embedded system implementation and ground monitoring software design. The navigation device comprises a navigation computer, an inertial navigation unit (IMU) device, a GPS / Beidou satellite receiving device, two airspeed measuring devices, a laser radar, a rotor tilt angle measuring encoder and a data transmission device; re-calculating the quality characteristics of the unmanned aerial vehicle system according to the rotor wing tilt angle, then calibrating inertial navigation data, and carrying out fusion processing on inertial navigation and satellite navigation data; an embedded software system is designed to realize the functions of data acquisition, data processing, data transmission, data storage and the like; and the processed navigation data is sent to a flight control computer and ground monitoring software through a data transmission system, so that efficient control of the aircraft, real-time transmission of the navigation data and visual processing are realized.

The application provides an EtherCAT slave station gateway for a semiconductor temperature control device, comprising a hardware layer and a software layer: the hardware layer is an embedded semiconductor industrial device communication gateway, integrating a power supply module, a main control module, an Ethernet communication module, an EtherCAT slave station module and a 24V input / output port module; the software layer is an embedded software system with a layered architecture, divided into an application layer, a protocol layer and a hardware abstraction layer, realizing business logic processing, communication protocol conversion and software / hardware interaction decoupling. Through the cooperative work of hardware and software, the application can realize data transmission between a semiconductor production device host and a Chiller based on the EtherCAT protocol, improve the real-time performance, accuracy and system maintainability of data transmission, and adapt to the high-precision and high-stability requirements of temperature control in semiconductor production.

The invention provides a knee joint coronal plane scanning embedded software system, a knee joint coronal plane scanning embedded software method and a storage medium, the knee joint coronal plane scanning embedded software system is divided into a PC command interaction thread, a logic control thread and a motor control thread, and asynchronous communication is performed by using an event message queue; the problem of program blocking caused by traditional single-thread control is solved. In the scanning process, the PC command interaction thread independently processes analysis of an upper computer serial port command and event message generation, the logic control thread focuses on monitoring a 220V sensor state and a photoelectric switch trigger signal, and the motor control thread is specially responsible for driving a stepping motor to move, so that all the threads can be executed in parallel without waiting for other tasks to be completed through division of labor; the real-time response capability of the system is obviously improved; and the event message queue allocates a fixed storage space, so that the orderliness and reliability of message transmission are ensured, data loss or conflict is avoided, and meanwhile, the resource competition risk is reduced.

A method for dynamic configuration of a register map in an embedded software system may include, in response to receipt of configuration parameters for the register map, generating at least one table of metadata descriptors associated with objects of the register map based on the configuration parameters and embodied in random access memory of the embedded software system, the metadata descriptors defining composition and order of registers of the register map and configured to interface with a register map interpreter in firmware stored in read-only memory of the embedded software system.

The invention provides a structured demand-based missile-borne embedded software test modeling automatic generation method, which comprises the following steps of: aiming at the characteristics of missile-borne embedded software, describing the behaviors of a missile-borne embedded software system by adopting a structured mode to form a structured demand-based standard expression template, establishing a mapping rule corresponding to the structured demand and the activity graph; the method comprises the following steps: according to a test demand and a standard expression template of a missile-borne embedded software system, filling in a structured demand template capable of completely expressing test demand information, and storing the structured demand template as an XML document; reading and analyzing the XML document, and converting the structured demand template into an activity graph according to a mapping rule, namely generating a test model; according to the method, behaviors of a missile-borne embedded software system can be described on the basis of a structured mode, meanwhile, the relation between structured demand elements and an activity graph is established, and a relevant conversion algorithm is designed to achieve automatic generation from the structured missile-borne embedded demand to a test demand model.

The invention discloses a power failure protection method for real-time data storage of an embedded system. The problem of data consistency caused by power failure is solved from the design and implementation of an embedded software system. For the process that the system is powered off and then powered on, the process that the system modifies the data blocks and adds the data blocks is designed, and the reliability and integrity of data are ensured.