This paper proposes a novel bidirect i o nal anti-theft alarm scheme through detecting the magnetic field.The theoretical background and analysis of the approach of anti-theft alarm are pre sented.The circuit of burgl...This paper proposes a novel bidirect i o nal anti-theft alarm scheme through detecting the magnetic field.The theoretical background and analysis of the approach of anti-theft alarm are pre sented.The circuit of burglar alarm is designed,fabricated and tested,and C language program is implemented and debugged.Feasibility of the de veloped scheme is proved by the experiments.展开更多
Produced by the Beijing Taidu Automobile Safety Equipment Manufacture Co. Ltd., the Taidu electronic anti-theft alarm system has a single key system and easy operation. The system has a cover to protect it from accide...Produced by the Beijing Taidu Automobile Safety Equipment Manufacture Co. Ltd., the Taidu electronic anti-theft alarm system has a single key system and easy operation. The system has a cover to protect it from accidental triggering. Indicators display its remote control function, controlling all the locking and unlocking actions for an automobile’s doors within a range of 50 metres. The system has a展开更多
In order to improve the security of home residence, this paper studiesand designs an intelligent home security alarm system, using STC89C51single chip microcomputer as the main controller of the security system,and re...In order to improve the security of home residence, this paper studiesand designs an intelligent home security alarm system, using STC89C51single chip microcomputer as the main controller of the security system,and real-time monitoring by controlling the human pyroelectric infraredsensor and smoke sensor in the case of strangers invading the securityrange and showing signs of fire. Once the abnormal situation is found, theintelligent home security alarm system will start the acousto-optic alarmprompted by the LED lamp and pass through the information processingsystem of the GSM module. Send an abnormal text message to the user ofthe security system at the first time face, and finally realize the purpose ofmodern intelligent home security alarm.展开更多
基金National Natural Science Foundation of China (No.51105267, No.91123036)China Postdoctoral Science Foundation(No.2011M500542, No.2012T50248)+2 种基金National Research Foundation for the Doctoral Program of Higher Education of China(No.20111402120007)Shanxi Provincial Foundation for Returned Scholars (No.2011x10)863 Project (No.2011AA040404, No.2013AA041109)
文摘This paper proposes a novel bidirect i o nal anti-theft alarm scheme through detecting the magnetic field.The theoretical background and analysis of the approach of anti-theft alarm are pre sented.The circuit of burglar alarm is designed,fabricated and tested,and C language program is implemented and debugged.Feasibility of the de veloped scheme is proved by the experiments.
文摘Produced by the Beijing Taidu Automobile Safety Equipment Manufacture Co. Ltd., the Taidu electronic anti-theft alarm system has a single key system and easy operation. The system has a cover to protect it from accidental triggering. Indicators display its remote control function, controlling all the locking and unlocking actions for an automobile’s doors within a range of 50 metres. The system has a
文摘In order to improve the security of home residence, this paper studiesand designs an intelligent home security alarm system, using STC89C51single chip microcomputer as the main controller of the security system,and real-time monitoring by controlling the human pyroelectric infraredsensor and smoke sensor in the case of strangers invading the securityrange and showing signs of fire. Once the abnormal situation is found, theintelligent home security alarm system will start the acousto-optic alarmprompted by the LED lamp and pass through the information processingsystem of the GSM module. Send an abnormal text message to the user ofthe security system at the first time face, and finally realize the purpose ofmodern intelligent home security alarm.
