Abstract: An automatic connection and disconnection system and an automatic connection and disconnection method are provided. The method includes the following steps. A connection signal sent by an electronic device is received by a determining device. The connection signal includes intensity information obtained from measuring at least three identification signals by the electronic device. The at least three identification signals are from at least three peripheral devices, and the at least three peripheral devices are placed to form a geographical region. Also, a first position of the electronic device is located by the determining device according to the connection signal. Next, whether the first position is within the geographical region is determined by the determining device. When the first position is within the geographical region, the electronic device is communicatively connected to a connecting device. The connecting device is located within or outside the geographical region.

Abstract: An automatic connection and disconnection system and an automatic connection and disconnection method are provided. The method includes the following steps. A connection signal sent by an electronic device is received by a determining device. The connection signal includes intensity information obtained from measuring at least three identification signals by the electronic device. The at least three identification signals are from at least three peripheral devices, and the at least three peripheral devices are placed to form a geographical region. Also, a first position of the electronic device is located by the determining device according to the connection signal. Next, whether the first position is within the geographical region is determined by the determining device. When the first position is within the geographical region, the electronic device is communicatively connected to a connecting device. The connecting device is located within or outside the geographical region.

Abstract: A system for wireless communication network is disclosed. The system includes several nodes and at least a gateway. Each of the nodes includes several first wireless network interface. Each of the first interfaces utilizes one of channels to send, receive or forward signals. Wherein the first interfaces of the same node utilize different and non-overlapping channels to send, receive or forward the signals at the same time. Each of the gateways includes a network interface and several second wireless network interfaces. The network interface connects to the Internet to receive or forward the signals. Each of the second wireless network interfaces utilizes one of the channels to receive or forward the signals. Wherein the second wireless network interfaces of the same gateway utilize different and non-overlapping channels to receive or forward the signals at the same time.