Three basic elements of embedded system and application examples

Three basic elements of embedded system

The three basic elements of the embedded system are embeddedness, specificity and computer system.

(1) Embeddedness is to embed software into Flash memory,

(2) Specificity refers to a specific application field and occasion, tailor-made customization applicable to the dedicated system for that occasion,

(3) Computer system refers to the composition that must have a computer system, and the core is the computer system.

Three elements determine that the embedded system is a special computer system embedded in the object system.

Embedded system application examples

Embedded systems are now developing very rapidly. They have been widely used in our lives from unknown to now. Their application prospects are very broad. People will be exposed to embedded products all the time, from washing machines at home, Refrigerators, to bicycles and cars as vehicles, to teleconferencing systems in offices, etc. In homes, offices, and public places, people may use dozens or more of these embedded radio chips to form some electronic information equipment and even electrical equipment into a wireless network; in the car and on the road, people use such embedded radio chips. The radio chip can realize remote office, remote control, and truly carry the network with you. Here I will cite a few life examples to let you know more about embedded systems.

Before giving an example, let us first understand what an embedded system is? The general explanation is like this: a dedicated computer system with application-centric, computer-based technology, tailorable software and hardware, and strict requirements on function, reliability, cost, volume, and power consumption. In fact, the simple understanding is these points: software and hardware, can be tailored, dedicated, a computer system that requires various functions.

Now we come to understand one by one:

Embedded smart home system

Smart home allows users to use more convenient means to manage home devices, such as controlling home devices through wireless remote control, electricity, Internet or voice recognition, setting device actions according to scenes, and linking multiple devices. Various devices in the smart home can communicate with each other, and can interact with each other according to different states without user command, so as to provide users with an efficient, convenient, comfortable and safe living environment and work environment to a large extent.

Smart home is a product of the information age, with computer and network technology as the core, penetrated and applied to the construction industry, its development tends to perfectly combine architectural art and information technology to form both safety, comfort and efficiency. A complex that can integrate science and technology with culture and art.

Traffic management: Embedded system technology has been widely used in vehicle navigation, flow control, information monitoring and automobile services. Mobile positioning terminals with embedded GPS modules and GSM modules have been successfully used in various transportation industries . At present, GPS devices have entered the homes of ordinary people from cutting-edge products, and you can find your location anytime and anywhere with only a few thousand yuan.

Home intelligent management system: remote automatic meter reading of water, electricity, and gas meters, safety and fire protection, anti-theft system, in which a dedicated control chip embedded will replace the traditional manual inspection, and achieve higher, more accurate and safer performance.

POS network and e-commerce: public transportation contactless smart card issuance system, public electricity * card issuance system, automatic vending machines, various smart ATM terminals will fully enter people's lives. 4. Environmental engineering and nature: real-time monitoring of hydrological data, flood control system and water and soil quality monitoring, dam safety, earthquake monitoring network, real-time weather information network, water source and air pollution monitoring. In many areas with harsh environments and complex terrain, embedded systems will realize unmanned monitoring.

Robots: The development of embedded chips will make robots more obvious in terms of miniaturization and high intelligence. At the same time, they will greatly reduce the price of robots and enable them to gain wider applications in industrial and service fields.

Industrial control: various intelligent measuring instruments, numerical control devices, programmable controllers, control machines, distributed control systems, field bus instruments and control systems, industrial robots, mechatronics machinery and equipment, automotive electronic equipment, etc., widely used in micro-processing Device/controller chip level, standard bus template level and system embedded computer. Compared with other fields, electromechanical products can be said to be one of the most typical and extensive fields of embedded system applications. From the original single-chip microcomputer to the current industrial computer and SOC, there is a huge market in various electromechanical products. Industrial equipment is the largest category of electromechanical products. In the current industrial control equipment, industrial computers are widely used. These industrial computers generally use industrial-grade processors and various equipment, of which X86 MPUs are the most. The requirements of industrial control are often high, requiring a variety of equipment interfaces. In addition to real-time control, the equipment status and sensor information must also be displayed on the screen in real time. These 8-bit microcontrollers cannot meet these requirements. Most of them used 16 bits in the past.

Military*: Because military PDA needs to integrate satellite positioning, wireless communication, image capture and transmission, and other functions, it is very important for each individual in a high-tech war. Some foreign countries have already engaged in research and development of related technologies. And equip this kind of product to a specific working occasion. Military *PDA products have different functional requirements according to different applications, involving a variety of current advanced technologies, such as embedded CPU applications

In addition to military *PDA, there are various other weapons control (artillery control, guidance * control, intelligent bomb * guidance * device), tanks, ships, bombers and other land, sea and air military * electronic equipment, radar, electronic countermeasures military communications Embedded systems are used in equipment, field command operations and various special equipment.

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