| 摘要 |
PURPOSE: An unmanned watching system based a ubiquitous sensor network and a method thereof are provided to accurately analyze the attribute of a moving body based on velocity information and directivity information of the moving body, thereby efficiently managing unmanned watching. CONSTITUTION: Sensor nodes(110) transmit the first sensing information of a moving body to a sensing information processing server(200). The sensor nodes send ultrasonic waves according to a preset time unit condition and a frequency transmission condition type. The sensor nodes send the second sensing information of the moving body at least one time after a preset time. The sensing information processing server decides a property of the moving body based on the sensing information and analysis processing. |
