| 摘要 |
PURPOSE: An intelligent security device is provided to sense the sensing material precisely and efficiently by using a temperature sensor, an illumination sensor, an infrared sensor, an ultrasonic sensor, and a microwave sensor. CONSTITUTION: A security device comprises a sensing material sensing unit(200) which includes an infrared sensor, an ultrasonic sensor, and a microwave sensor and senses the sensing material; a temperature sensor(240) which senses the surrounding temperature; and a control unit(900) which distinguishes the sensing material based on a signal which is inputted from the sensing material sensing unit. The control unit blocks a signal which is inputted from the infrared sensor if the sensed surrounding temperature is higher than the predetermined critical value. The control unit distinguishes the sensing material by using a signal which is inputted from the ultrasonic sensor and the microwave sensor, respectively. The control unit comprises an image photographing unit(300) which photographs the sensing material; a user input unit(500) which receives an input of a user command; a time information receiving unit(600) which receives current time information; and a driving unit(350) which controls the movement of the image photographing unit. The control unit controls the driving unit to move the photographing unit to a first position in first time determined by the user command and to move the photographing unit to a second position in second time. [Reference numerals] (200) Sensing material sensing unit; (210) Infrared ray sensor; (220) Ultra wave sensor; (230) Micro wave sensor; (240) Temperature sensor; (250) Illumination sensor; (300) Image photographing unit; (350) Driving unit; (400) Voice recording unit; (500) User input unit; (600) Time information receiving unit; (700) Communication unit; (800) Storing unit; (900) Control unit |
