Design Of Intelligent Security System Based On Internet Of Things

With the popularization of artificial intelligence,security industry Home Furnishing are also concerned at the same time,the rapid development of security products,also exposed many shortcomings,such as: network connection cumbersome,mobile phone interface control redundancy detection,high false alarm rate,high power consumption,the cost of operation,lack of humanization,these problems are still not resolved.This paper developed a IOT based intelligent security system design,with the function of remote control,can be real-time detection module of each detection status is sent to the user's mobile phone app,and the system of low power consumption,high cost,compared with the traditional operation friendlier,this system consists of a plurality of detection module the wireless communication module,mobile phone and cloud platform app.The detection module includes the gas leakage detection module,the fire detection module and the leakage detection module.The gas leakage detection module uses the pulse width modulation type constant temperature detection method to measure the concentration of 1% to 4%.This method can reduce the power consumption and improve the security of the detection device.The fire detection module uses the compound parameter detection method: first,the measured attenuation coefficient is compared with the 0.3d B/m,and then the concentration is based.Whether the value is more than 23 ppm and whether the temperature is more than60 degrees centigrade to judge the stage of the fire,the method reduces the false alarm rate;the leakage detection module uses the method of liquid conduction to detect,reduce the cost and facilitate the developer to optimize the system.In this paper,the selection of wireless communication mode not only uses the Zigbee module but also the Wifi module.The Zigbee module can also reduce the powerconsumption of the whole system,while the system is dormant when there is no abnormal condition.The Wifi module sends the data sent by the Zigbee module to transmit the data in the way of transmission.To the cloud platform,the cloud platform receives the data and sends the data to the user's mobile app.The user can also understand the home situation through app in the home state and realize remote monitoring.This paper optimizes the design of wireless communication and detection module,providing a safer and more convenient guarantee for residents' life.In this paper,each module in the system is tested and tested.The test results show that the intelligent security system based on the Internet of things can alarm when the gas concentration is more than 1%,and the mobile phone app can receive the alarm information in real time when the leakage situation appears,and it can make the fire accurate according to the measurement of the comprehensive reference number.It reduced that the false alarm rate of the system.