Single chip microcomputer IP technology in the application of the intelligent community system

Abstract: MCU IP technology in the intelligent community system, the application of information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. The introduction intelligent residential district, Or called 'intelligent village) In the 90 s of this century is the concept of the introduction of domestic and it was based on the intelligent family as the core, including the remote meter reading, home burglar alarm, medical care, home appliance control and using system set. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a single-chip microcomputer IP technology in intelligent community system, the application of article details. The introduction intelligent residential district, Or called 'intelligent village) Is the concept of domestic, introduced in the 90 s this century, it is intelligent household as the core, including the remote meter reading, home burglar alarm, medical care, home appliance control and system integration methods, establish a communication between living area residents, between residents and community comprehensive service center, residents and external social integrated information interaction system, for the residents to create a safe, comfortable, convenient and efficient to live and living environment. The current intelligent community system based on RS485 bus and CAN bus, LONWORKS etc networking, complex wiring, conflict, system is not stable and involves the fire safety and cost considerations. And Ethernet to realize networking, wiring is simple, and the implementation is also cheaper than CAN, LONWOKS etc, also more conducive to intelligent community products compatible and unity. In today's computer technology and information technology under the condition of continuous development, as well as the needs of the people to be resided to the home life and the change of ideas, and television, computer network has the tendency of unity, the development of intelligent residential area in the future must be Ethernet. So in view of the current situation and tendency of the development of industry, for the study of the intelligent terminal based on IP Ethernet family keep up with the trend of the era development, has the certain practical significance. Intelligent community system structure, this article put forward the village intelligence system by computer management system, network switching equipment, household intelligent terminal ( CDT) Of three main parts, the network structure as shown in figure 1, figure 1 system network structure tutu 2 refers to the user terminal structure of community management system installed in the center of the community management, complete the user terminal data acquisition and data processing within the whole community of computer system, for users more system, can use the client/server ( C/S） Structure. Community management system is divided into monitoring computer ( 客户端) And the server ( 服务器) Two parts, the client only for the use of data acquisition, data processing on the server side. Community management system features include: according to the user terminal state of the Internet, to accept and display alarm, read, gas table data and generate reports, alarm log processing, system management, etc. User data terminal: user terminal used for communication, and management system and complete the various signal measurement and alarm signal collection, call answering machine, answered online state, and provide the operation panel welcome user query. 1 user terminal structure as shown in figure 2: the hardware structure of the system is composed of two pieces of single chip microcomputer, a responsible for five meter reading, remote control and security of signal acquisition work, another is responsible for driving RTL8019 communication, LCD display and keyboard response and drive. Via a serial port communication between two pieces of MCU. 2 RTL8019 configuration RTL8019 is a highly integrated Ethernet control chip, it has two operationmode: jumper is a jump line model, a kind of right and wrong jumperless jump line model, the latter also supports PlugandPlay. In the single chip microcomputer is generally adopt the jumper wire mode options. I/O port base address is determined by the connection between single-chip microcomputer and 8019, P2. 6 = 8019 cs, low level effectively, then IO_BASE_ADDRESS xbf00 = 0. In addition 8019 also has eight IRQ interface, this system was useless to the IRQ, adopts the query method. 8019 I/o address, a total of 32, address offsets of 00 h - - 1跳频( Corresponding to the BF00H - - BF1FH） 。 00 h - among them - 0 fh, a total of 16 address to register address, register is divided into 4 pages PAGE0 - - PAGE3, compatible with NE2000 register only three pages, Page0 - 所以Page2) , in order to guarantee the driver for all Ne2000 network card, don't go to operate the fourth page of the registers.

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