Application of SCM IP Technology in Intelligent Community System

Abstract: The application information of single-chip IP technology in intelligent community system is provided by excellent flowmeter and flowmeter production and quotation manufacturers. 1. Introduction The concept of intelligent residential area (or called 'smart area') was introduced into China in the 1990s. It is based on home intelligence, including functions such as remote meter reading, home burglar alarm, medical assistance, and home appliance control. , using the system set. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following are the details of the application of single-chip IP technology in intelligent community systems. 1. Introduction The concept of intelligent residential area (or called 'smart area') was introduced into China in the 1990s. It is based on home intelligence, including functions such as remote meter reading, home burglar alarm, medical assistance, and home appliance control. , adopt the system integration method to establish a comprehensive information exchange system that communicates between the residents within the community, between the residents and the comprehensive service center of the community, and between the residents and the external society, so as to create a safe, comfortable, convenient and efficient residence and life for the residents. surroundings. The current intelligent community systems are mostly networked with buses such as RS485, CAN bus, LONWORKS, etc. The wiring is complicated, there are many conflicts, the system is not stable enough, and it involves the consideration of fire safety and cost. And Ethernet realizes networking, wiring is simple, and the realization is cheaper than CAN, LONWOKS, etc., and it is more conducive to the compatibility and unification of intelligent products in the community. With the continuous development of computer technology and information technology, as well as people's needs for home life and changes in concepts, there is a trend of integration of the three networks, television, and computer. The future development of smart communities will definitely be the world of Ethernet. Therefore, according to the current development situation and trend of the industry, it has certain practical significance for the research on IP-based Ethernet home intelligent terminal to conform to the trend of the times. 2. Intelligent Community System Structure The intelligent community system proposed in this paper consists of three main parts: the community computer management system, the network switching equipment, and the home intelligent terminal (CDT). The network structure is shown in Figure 1: Figure 1 System Network Structure Figure 2 User Terminal structure diagram The cell management system refers to a computer system installed in the cell management center to complete the collection and processing of user data terminal data in the entire cell. For systems with a large number of users, a client/server (C/S) structure can be used. The community management system is divided into two parts: monitoring computer (Client) and server (Server). The client is only used for data collection, and the data processing is carried out on the server side. The functions of the community management system include: displaying the Internet access status of user terminals, accepting and displaying household alarms, reading water and electricity meter data and generating reports, processing alarm logs, and system management. User data terminal: The user terminal is used to communicate with the management system, complete the collection of various metering signals and alarm signals, answer the host's call, answer the Internet access status, and provide an operation panel to welcome users' inquiries. 3. User terminal hardware structure and configuration of RTL8019 3.1 User terminal structure The hardware structure diagram is shown in Figure 2: the system consists of two single-chip microcomputers, one is responsible for the acquisition of five meter readings, remote control and security signals, and the other is responsible for driving RTL8019 Communication, and respond to the keyboard and drive the LCD display. The two MCUs communicate through serial ports. 3.2 RTL8019 configuration RTL8019 is a highly integrated Ethernet control chip, it has two operationmodes: one is jumper mode jumper, the other is non-jumper mode jumperless, the latter also supports PlugandPlay. The jumper mode option is generally used in microcontrollers. The base address of the I/O port is determined by the wiring between the single-chip microcomputer and the 8019, P2.6=8019CS, active low, then IO_BASE_ADDRESS=0xBF00. In addition, 8019 also has 8 IRQ interfaces. IRQ is not used in this system, and the query method is adopted. 8019 has 32 input and output addresses, and the address offset is 00H--1FH (corresponding to BF00H--BF1FH). Among them, 00H--0FH has a total of 16 addresses, which are register addresses. The registers are divided into 4 pages PAGE0--PAGE3. The registers compatible with NE2000 have only 3 pages (Page0-Page2). In order to ensure that the driver is valid for all Ne2000 network cards, do not go to Manipulate the registers on the fourth page. 10H--17H has a total of 8 addresses, which are DMA addresses. 18H--1FH has a total of 8 addresses, which are soft reset ports. The hardware reset of 8019 is very simple, it only needs to output a high level to RSTDRV when it is powered on.

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