New intelligent community system with embedded single chip microcomputer design

After several years of development in the domestic intelligent construction of the community, a series of standards have been formed, and their appearance meets the requirements of different income classes for intelligent housing. As an important link in the intelligent construction of the community, the indoor terminal has gradually developed into a comprehensive information service processing platform integrating multiple functions as the development of electronic technology and the improvement of people's demand for intelligent housing. With the advent of the post-PC era and the era of network and communication technologies, smart cells have gradually entered the era of embedded applications.

Compared with the similar single-chip microcomputer, the embedded single-chip microcomputer has balanced performance and high cost performance in terms of operation speed, peripheral resources, flexibility and strong anti-interference. It is particularly worth mentioning that the embedded MCU adopts the built-in watchdog technology, which breaks the phenomenon that the AT89C2051 MCU often crashes before; adopts multi-level encryption technology to protect intellectual property rights; adopts the Flash memory structure, which can realize ISP online programming, Can also IAP programming (upgrade the software of designated target chip through the Internet network), reducing development time, greatly reducing the difficulty of on-site upgrade, reducing the cost of after-sales service, it is easy to meet the needs of users.

OTO one-time MCU cannot match with embedded MCU in software upgrade and after-sales service cost.

Traditional indoor terminals can only perform simple security and electrical control in the user's room, which can no longer meet people's requirements for intelligent housing. On the basis of the security and electrical control functions, the new type of intelligent community system focuses on the function of information services, which satisfies people's fast-paced and open life in modern society.

1. The overall structure and process of the intelligent community

The entire community management system is mainly composed of several parts, such as home intelligent terminal extension, building door machine, cell door machine, host controller and management center.
Flow chart of the entire system of the community. In this system, in addition to completing the basic building intercom and sending alarm data to the management center, the home intelligent terminal extension can also take pictures of the visitor images of the door of the building and the door of the community, sent by the management center. Inquire about personal information and public letter. Building door machines, cell door machines, and host controllers mainly implement building intercom, audio and video channel switching, and data transmission to realize the function of door switches. The management center implements the management, planning and coordination of the entire system.

2. Application Examples

1. Here, I will introduce the latest products of Anjubao Company one by one.
among them:
● Home terminal extension: including 04D hands-free visual extension, 04B hands-free visual extension, embedded hands-free visual extension, N-type visual extension with handle, 04A visual extension with handle.
● Building door machine: DF2000ATVC / 5 (AM) luxury stainless steel model with access control color video door machine.
● Community door machine: DF2000ATVCB / 5 (AM) luxury stainless steel model with access control color visual community door machine.
● Host controller: HY-2000-type building door host and community door machine controller, HY-2000BNPM-type door recording host and community door machine controller with recording and information release.

2. Product features:
â‘ Home terminal extension:
● Pleasant and beautiful polyphonic ringtones, the volume can be adjusted, and the music can be selected. For different call events, the ringtones can be distinguished;
● Visitor image, personal information, public information query, visualized personalized interface operation;
● Real-time monitoring of the door machine image and the rotation of the remote host lens to achieve multi-directional monitoring;
● Embedded CPU high-speed data processing, strong real-time operating system, no loss of data collection, fast response speed, easy software upgrade;
● The use of watchdog technology and special software and hardware processing ensure the stability of the product and prevent crashes.
● Automatic listening line, line idle / busy indication;
● Incoming call sound and light prompt and do not disturb design;
● Others: basic building intercom, eight-zone alarm ... and other functions.

â‘¡Host and host controller:
● Can simultaneously receive the monitoring instructions of the home terminal extension and management center and the rotation command of the host lens;
● Automatically record and take pictures of visitors when entering or leaving the entrance;
● Choose the image memory card with corresponding capacity according to the requirements, flexible configuration, convenient for users;
● Real-time query of visitor images, personal information and public information from home terminal extensions;
● Automatically notify the family terminal extension of personal information and public information sent by the management center;
● Embedded CPU high-speed data processing, strong real-time operating system, fast response speed, easy to upgrade software;
● Using watchdog technology and special software and hardware processing to ensure the stability of product work and prevent crashes;
● Automatic call forwarding function, other data transmission.
● Others: basic building intercom ... and other functions.

3. Conclusion Because the embedded single-chip microcomputer has more advantages than the traditional single-chip microcomputer, its application in the new intelligent community system is the trend of communication development and the needs of the times.