This paper introduces a smart home security monitoring system with ARM embedded development board as the core, integrated Internet communication and GPRS wireless communication technology. The function and structure of the system, hardware block diagram and software design ideas are given. The system collects signals from sensors, and the camera captures images. After processing by the ARM development board, the system transmits to the remote monitoring center using the Internet and GPRS modules. The remote monitoring system is built using the Boa embedded Web server and the SOLite database, and the user remotely sends control commands by clicking a button on the web page. The experimental test shows that the system not only effectively realizes the functions of rapid alarm and remote monitoring, but also realizes the functions of image capture, package download and other functions to meet the design requirements of remote monitoring.
Along with the process of digitization and networking, the wave of intelligence has swept through every corner of the world and has become an irresistible historical trend. In the face of the current trend of criminalization, intelligence, gangs and violent behavior of criminals, the traditional "human defense" approach is far from being able to adapt to the needs of the new form of struggle.
The new security monitoring system uses various sensors installed in the home to collect various environmental parameters, transmit them to the upper computer, and use information management software to perform data storage, display, analysis and processing operations, alarming abnormal conditions, and according to presets. The control strategy is automatically processed to eliminate potential safety hazards in a timely manner.
With the rapid development of network communication technology and image compression processing technology and transmission technology, the family can use the latest communication and image processing technology to transmit digital images through the network, which can provide efficient, feasible and low-cost solutions for home monitoring systems. .
Therefore, the development and promotion of remote security monitoring systems, so that people can understand their family profiles at a remote time while working busy, and make timely analysis and judgment, has very important practical significance.
1 system function and overall structure design
1.1 System implemented functions
The system is designed primarily for home users and monitors the security of the home. Users can set basic user information, monitoring status, monitoring parameters, etc. according to their needs. The system implements the following features:
1) User setting: You can click the user setting button on the monitoring main page to set the user name and password of the login interface; modify or add the mobile phone number that receives the alarm information, change the SMS center number, and set the fire temperature upper limit.
2) Remote security monitoring and query of home security status: The owner can go out and browse the webpage to check the security status of the home through mobile phones or other networked devices.
At the same time, the owner can remotely send control commands by clicking the relevant button on the web page.
3) Home security monitoring: When a thief breaks into a house or has a fire or other disciplinary incident, the monitoring terminal can monitor the dangerous situation in real time, and automatically take corresponding measures, and send alarm information to the monitoring center. The monitoring center uses GSM SMS. The way to notify the head of the household.
4) On-site image capture function: In the armed state, when the infrared sensor or the door magnet triggers the alarm, the camera will automatically capture the image, process the image through the MGPJ-Streamer server built on the ARM development board, and stream the image. Save to the SQLite database.
5) Packing and downloading of historical photos and timed deletion: In order to facilitate viewing and fast transfer of historical photos, historical photos are packaged and compressed in .tar.gz format, and at the same time, in order to ensure sufficient storage space, it is possible to periodically delete the past time period. photo.
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