Design Of Fingerprint Identification Security System Based On STM32F103

With the development of science and technology,people are gradually stepping into the era of electronic information.At the same time,people have put forward higher demands on the quality of life and family security,Family Security has been a branch of life,which has also been aroused widely concern.The defects of high load,high cost,high misinformation rate and high temperature sensitivity has penetrated the traditional security devices.In view of the defects and problems mentioned above,this paper puts forward a new security system that the using of stm32 and alarm system and sensor and fingerprint identification and electronic lock and wireless magnetic door and etc have applied in the system.The main contributions of this article are as follows:(1)Aiming at the problem of large load and high cost of the system,the STM32 MCU is used as the mainframe to deal with all kinds of data(the data received by the sensor etc.),which greatly reduces the load of the system and reduces the cost of the system.(2)In view of the problem of high error reporting rate of traditional security devices,the accuracy of system recognition is increased and the error rate is reduced by using electronic lock and fingerprint identification.(3)In view of the change of the system temperature,the temperature and humidity sensor and smoke sensor are used to detect the changes of the indoor environment simultaneously,and the corresponding temperature threshold is set up to enhance the robustness of the system to the change of environment temperature.In addition,the interface of GSM is designed to send the alarm information to the householder through text message in GSM network,in order to monito the sistuation of the indoor and outdoor in the real-time.