| With the development of social economic and the improvement of living environment, people's demand on the security of their own home is increasing, which makes home security and the lives of people connect closely. In strong support of the rapid development of modern communication technology, the filed of home security has been the rapid development. By the investigation of information, we found today's security systems are not suitable for home use because they are complex for operating, not convenient for installation, complicated for wiring that affect the indoor appearance. People have pressing requirements for relatively low price and power consumption and monitoring and alarm system of reliable technical performance. The design of practical security product that is used in the home and small office have the realistic meaning and practical value.The paper design an infrared alarm device based on wireless network to transmission images that use wireless network communication technology, embedded technology, image storage and infrared intrusion detection technology. The device achieve the objective of timely and accurate delivery by senting the invasion image in the form of MMS to the user mobile terminal. Monitoring terminal of system use the latest low power microprocessor STM32F103 based on ARM Cortex-M3 core as core processor, pyroelectric infrared sensor and BISS0001 signal processing circuit to design intrusion detection module, GXT-M201 camera module that integrate JPEG image compression to complete the function of invasion photo collection, NAND FLASH chip to design image storage module and GPRS module TR800 by the function of MMS to design wireless network transmission module. The monitor terminal achieve the function of intrusion detection, collection and storage image data and wireless network transmission. Receiving terminal requires that users only have a mobilephone with the function of MMS. Not only ensure the whole system works normally, but also receive SMS commands from user. The system recognize and respond commands to complete user's active request and reach the purpose of remote control. The system obey every technical performance indicators strictly to reach the design requirements and achieve the purpose of real-time monitoring and transmission, could replace system of wireless transmission of image data by existing wired transmission.Monitoring of intrusion alarm system of the paper possess the basic skills of home security, stable performance, high reliability, though its modular design facilitates the system in maintenance and expansion capabilities, and also laid a good foundation for improvement better in future. |
