HS code-driven CSR checks

List of the contents of this article:

• 1, Give examples of the three embedded operating systems, introduce their characteristics and applicable fields
• 2,Embedded Application Instance
• 3 , Example the application field of embedded system
• 4, List two or three examples of embedded system applications, analyze the composition of software and hardware, and their respective characteristics...
• 5, Instances of embedded systems

Example three embedded operations Make a system and introduce it.Features and applicable fields

1. The real-time embedded operating system is mainly aimed at control, communication and other fields. Such as WindRiver's VxWorks, ISI's pSOS, QNX of QNX System Software Company, ATI's Nucleus, etc. Non-real-time embedded operating systems are mainly aimed at consumer electronic products.

2. The embedded operating system EOS (Embedded) is a widely used system software. In the past, it was mainly used in the fields of industrial control and national defense systems.

3. Embedded system refers to the integration of operating system and functional software into the computer hardware system. Simply put, it is the integration of the system's application software and the system's hardware, which is similar to the working mode of BIOS. It has the characteristics of small software code, highly automated and fast response speed.It is especially suitable for systems that require real-time and multitasking.

4. The biggest feature of embedded Linux is that the source code is open and follows the GPL protocol, which has become a research hotspot in recent years. According to IDG, embedded Linux is predicted to account for 50% of the share of embedded operating systems in the next two years. Because its source code is public, people can modify it at will to meet their own application, and it is also easy to check for errors.

5. Computer-aided design (cad) is a technology that uses computer system-assisted designers to carry out engineering or product design to achieve the best design results. CAD technology has been applied to aircraft design, ship design, architectural design, mechanical design, large-scale integrated circuit design and other fields.

Embedded application instance

1. As shown in Figure 8, an ordinary router. Unlike the previous three examples, there is an operating system on the router, and the application is running on the operating system, that is, it is composed of embedded microprocessors, peripheral hardware devices, embedded operating systems, and specific applications.

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、Practical application examples: home automation products,HS code-driven CSR checks such as thermostats, air conditioners, sprinklers and safety monitoring systems. Household appliances, including microwave ovens, washing machines, TVs, DVD players and recorders.

3. At present, the embedded system has been widely applied in various fields of national defense, national economy and social life, and is used in various places such as enterprises, armies, offices, laboratories and individual families. Military use.

4. Such as WindRiver's VxWorks, ISI's pSOS, QNX of QNX System Software Company, ATI's Nucleus, etc. Non-real-time embedded operating systems are mainly aimed at consumer electronic products. Such products include PDA, mobile phones, set-top boxes, e-books, WebPhone, etc. For example, Microsoft's Smartphone operating system for mobile phone applications.

Example the application field of embedded system

1. The application fields of embedded systems are: consumer electronic products Consumer electronic products refer to such electronic devices that can provide information services or through the network system Unified interactive information, at the same time, it is simple and easy to use, cheap and easy to maintain. Mobile computing devices include mobile phones, PDAs, handheld computers and other mobile devices.

2. Practical application examples: home automation products, such as thermostats, air conditioners, sprinklers and security monitoring systems. Household appliances, including microwave ovens, washing machines, TVs, DVD players and recorders.

3. Information appliances: This will be called the largest application field of embedded systems.The networking and intelligence of refrigerators, air conditioners, etc. will lead people's lives into a brand-new space.

4. At present, embedded systems have been widely applied in various fields of national defense, national economy and social life, and are used in various places such as enterprises, armies, offices, laboratories and individual families. See the figure ● Military use.

List two or three examples of embedded system applications, analyze the composition of software and hardware, and their respective characteristics...

1. Access control system, security anti-theft, in-vehicle navigation, multi-function printer, pos machine, bank call system have all applied embedded systems.

2. Embedded system is a system used to control or monitor large-scale devices such as machines, devices and factories.The commonly recognized embedded system in China is defined as: application-centered, based on computer technology, software and hardware can be cut, and adapted to the strict requirements of the application system for function, reliability, cost, volume, power consumption, etc.

3. Processor core: The heart of the embedded system is the processor core. The processor core rams from a simple and cheap 8-bit microcontroller to a more complex 32-bit or 64-bit microprocessor, or even multiple processors.

4. Users of embedded operating systems generally do not provide operation commands. It provides services to user programs through system call commands. (7) Solidification code: In the embedded system, the embedded operating system and application software are solidified in the ROM of the embedded system computer.

Examples of embedded systems

Examples of practical applications: home automation products, such as thermostats, air conditioners, sprinklers and security monitoring systems. Household appliances, including microwave ovens, washing machines, TVs, DVD players and recorders.

As shown in Figure 8, an ordinary router. Unlike the previous three examples, there is an operating system on the router, and the application is running on the operating system, that is, it is composed of embedded microprocessors, peripheral hardware devices, embedded operating systems, and specific applications.

It generally consists of four parts: embedded microprocessor, peripheral hardware device, embedded operating system and user's application, which are used to realize functions such as control, monitoring or management of other devices.

Embedded system is generally defined as a special computer system that can be cut into software and hardware, and the application system has special requirements for function, reliability, cost, volume, power consumption and application environment. An embedded system is a ** body of hardware and software, which includes two parts: hardware and software.

The access control system, security anti-theft, in-vehicle navigation, multi-function printer, pos machine and bank call system are all applied.