National Chung Shan Institute of Science and Technology

Chung-shan Institute of Science and Technology, Armaments, Bureau, Ministry of National Defense

Jen-Chi Liao

Tain-Wen Suen

Tung-Jung Hsu

Yu-San Lin

Feng-Yu Chang

Ming-Town Lee

Yu-Shan Lin

The present invention relates to a bidirectional voice transmission system and a method thereof, wherein the system timing of the system is divided into three time slots for carrying a control signal, a broadcast voice signal and a mobile device voice signal. The bidirectional voice transmission system is able to carry out the signal transmission by way of frequency frogging, so as to effectively avoid the signal interference from occurring between any two different signal transmitting and receiving devices. Besides, all of the mobile devices can be added into the bidirectional voice transmission system by way of dynamic building, without using any specific communication interface. The most important is that, the number of node routers can be expanded to about 65,000 in order to apply the bidirectional voice transmission system in a huge range network communication or a wild rescue field.

Bidirectional voice transmission system and method thereof

The present invention relates to a wireless communication locating method, the method uses a first wireless receiver, a second wireless receiver and a third wireless receiver (i.e., a first rescuer, a second and a third rescuer) to receive mayday and RSSI signals outputted by a person to be rescued, therefore the position of the person to be rescued can be precisely located after a backend signal-processing platform processes and calculates the mayday and RSSI signals. Through the method, each of rescuers are able to output a prompting signal to the person to be rescued by way of frequency synchronization, so as to give the person to be rescued hopes and a message that rescuers are coming. The method also includes the advantages of high damage resistance ability, high expansibility and can be easily operated, such that the purpose of immediate rescue can be achieved by using the method.

Wireless communication locating method

An emergency rescue system and a rescue-information judgment method are disclosed. The emergency rescue system includes a plurality of fixed nodes, a dynamic node and a back-end processing platform. Each fixed node has its own fixed node identification. The dynamic node can be a portable device with an emergency illumination module. If the dynamic node is manipulated to broadcast a mayday signal, at least one of the fixed nodes senses the mayday signal. Each fixed node which senses the mayday signal sends the fixed node identification thereof and signal strength of the sensed mayday signal to the back-end processing platform. Thereby, the back-end processing platform calculates and determines a rescue location relative to the dynamic node.

Emergency rescue system and rescue-information judgment method

The present disclosure is a full-duplex wireless voice broadcasting apparatus. The apparatus is capable of channel-changing. Full-duplex (two-way) voice communication is achieved by using at least one receiving device and an emitting device. The receiving device has good mobility to be used as an emergent caller to the emitting device. The present disclosure has advantages in interference resistance, energy saving, short-distance emergent calling, and calling for help.

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Taipei, Taiwan

Jen-Chi Liao