Broadly speaking, an embedded system is considered to be a controllable system that is composed of system hardware and system software and has high reliability and real-time performance. It is designed to meet some engineering applications with relatively high specific requirements. These requirements can be reflected in There are specific requirements for the cost, size, and system power consumption of the embedded system, and the software and hardware components that make up the embedded system can be tailored to meet this requirement. Engineering project development for embedded systems not only requires professional embedded system development tools and integrated development environment IDEs, such as IAR, etc., but also requires a cross-compilation process between the host and the embedded system development board.
The hardware system of the embedded system consists of three parts: embedded processor, memory and system peripherals. The embedded processor usually includes embedded microcontroller MCU, embedded microprocessor MPU, and embedded DSP processor. As the core of the hardware system component of the embedded system, the technological development status of the embedded processor determines to a large extent the function and application realization of the embedded system product.
The software system of the embedded system can be divided into three parts: embedded operating system, embedded middleware and embedded application software. Among them, embedded middleware software is a software resource used to help and support the development of embedded application software, which usually includes databases and related software development tools. The embedded application software is a user application that is designed and developed based on the selected system hardware platform in accordance with the needs of a specific project.
Embedded operating system can be understood as an operating system designed for embedded systems. The embedded operating system supports the allocation of software and hardware resources of the entire embedded system, as well as the scheduling and coordination of multiple tasks.
In recent years, with the rapid construction of highways and urban rail transit in various places, the market has an increasing demand for various LED displays that are professionally designed for use in the field of intelligent transportation. The LED display screen can display and publish various road condition information reflecting the road traffic conditions in real time, and can provide road traffic participants with the choice of routes to avoid large-scale traffic congestion. The LED display screen is used as an intelligent transportation system. The information display and release method can significantly increase the traffic speed of the road network and rationally distribute the traffic flow.
The realization of the design functions of LED display products related to the field of intelligent transportation is roughly as follows: the traffic management control center issues real-time road traffic information to be displayed to the LED display control system installed at the traffic site through the upper computer software, and the LED display displays real-time The road traffic information completes the traffic guidance work for the driving vehicles; the on-site LED display control system feeds back various information on the traffic scene to the traffic management control center in real time, so that the traffic management control can also determine the status of the on-site LED display in real time. Working status.
The design scheme of the traditional LED display control system generally adopts the smallest system composed of single-chip microcomputer, flash memory and static random access memory chip. Among them, the LED display display data and display content update, and the LED display control system and the upper position The communication between computers is done by single-chip microcomputers, but with the continuous development of embedded technology and the increasing demand for LED display functions, the problem of limited single-chip system resources has gradually become prominent, and the LED display control system based on single-chip microcomputers has been unable to to satisfy the market's needs. Based on the above-mentioned limiting factors of the traditional LED display control system, in the design and application of actual engineering projects, powerful ARM and FPGA can be used as the core part of the LED display control system. Among them, the LED display control system and the host computer The inter-communication part is realized by ARM, and the dynamic scanning part of the LED display screen is realized by FPGA.
The communication between the upper computer of the traffic management control center and the LED display control system installed on the project site can use standard computer data serial communication and Ethernet communication. The communication methods include RS232, RS485, LAN, and optical fiber transmission. And wireless transmission and so on.
Medical Cable Assembly refers to the customized wiring harness applied to various medical equipment. The quality of medical cable assembly can be said to be the highest in the industry, because modern medical safety factor requirements are gradually increasing, and every component involved in medical equipment must undergo strict testing processes. In order to ensure the quality of medical cable assembly. To meet the standards, strict attention must be paid to the production and processing stage of medical Wire Harness .
1. Opening process of medical cable assembly: The accuracy of the opening process is directly related to the entire production schedule. Once errors occur, especially if the opening size is too short, it will lead to rework of all stations, which will take time and effort and affect production efficiency.
2. The crimping process of the medical cable assembly: Determine the crimping parameters according to the terminal type required by the drawing, and make the crimping operation manual. For those with special requirements, it is necessary to indicate on the process document and train the operator.
3. Pre-installation process of medical cable assembly: First, the pre-installation process operation manual must be compiled. In order to improve the efficiency of final assembly, a pre-installation station must be set for complex medical wiring harnesses. If the pre-assembled part is assembled too little or the wire path of the assembly is unreasonable, it will increase the workload of the general assembly personnel.
4. The final assembly process of the medical cable assembly: According to the assembly table designed by the product development department, design the tooling equipment, the specifications and dimensions of the material box, and paste the numbers of all assembly sheaths and accessories on the material box to improve the assembly efficiency.
In addition to Custom Medical Cable, we also produce Vehicle Cable Assembly and Industrial Cable Assembly. Our Medical Power Wire Harness is exported overseas.
We welcome you to contact our sales or engineering team to discuss the special needs of your application.
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