| 摘要 |
A wireless distance monitoring apparatus, comprising a main device (1) and sub-devices (2, 3), wherein the main device (1) and the sub-devices (2, 3) are separately arranged and an information transmission channel is established through a wireless network. The main device (1) is used for establishing a network, searching for and receiving wireless signals transmitted by the sub-devices (2, 3), and calculating the distance between the main device (1) and the sub-devices (2, 3) according to the intensity of the received wireless signals, and the sub-devices (2, 3) transmit the wireless signals to the main device (1) by adding into the network established by the main device (1). The wireless distance monitoring device can calculate the distance between the main device (1) and the sub-devices (2, 3) within a relatively small range, and facilitate the daily carrying and management of people, so that the real-time and effective distance monitoring can be realized. |
