National Chung Shan Institute of Science and Technology

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

Chung-shan Institute of Science and Technology, Armaments Bureau, M.n.d

Chun Shan Institute of Science and Technology, Araments Bureau, M.n.d.

Customs Administration, Ministry of Finance, R.o.c.

Directorate General of Customs, Ministry of Finance R.o.c.

Tung-Jung Hsu

Ming-Town Lee

Tain-Wen Suen

Jen-Chi Liao

Feng-Yu Chang

Yu-San Lin

Chun-Fu Lin

Wei-Yi Tseng

Yu-Shan Lin

Jun-Liang Zhu

Chao-Tse Hong

Chuen-Lin Bau

A rotary switch state detection device includes a magnetic field generating unit, a gravity sensing unit, a magnetic force sensing unit and a processing unit. The magnetic field generating unit generates a magnetic field. The magnetic force sensing unit and the gravity sensing unit are disposed at a rotary switch to detect a gravity value and a magnetic force value of the magnetic field and generate a gravity strength signal and magnetic field strength signal, respectively. The processing unit is connected to the gravity sensing unit and the magnetic force sensing unit to calculate a gravity value variation and a magnetic force value variation and thereby precisely locate a rotation head of the rotary switch upon completion of rotation thereof.

Rotary switch state detection device

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

A composite type multi-mode electronic seal includes the bolt, the bolt male pedestal and the communication control part, and the advantage of the composite type multi-mode electronic seal containing the passive electronic seal containing the bolt and the bolt male pedestal and the active electronic seal containing bolt, the bolt male pedestal and the communication control part. Thereby, the present invention has the advantages and preferred result of the active and passive electronic seal, and can help the container cars, bonded cars, trucks and the like to perform the goods transmission, and it still perform the data read and data report according to the different RFID identification equipments built by every country's custom so to achieve the purpose of effectively recording the broken elements, instantly reporting and preventing smuggling.

Composite type multi-mode electronic seal

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.

Full-duplex wireless voice broadcasting apparatus with channel-changing and interference-resistance

Disclosed is an electronic seal for sealing a door. The door is equipped with a latch. The electronic seal includes a plug and a socket. The plug can be inserted in the socket through the latch. Thus, the door is sealed by the electronic seal. The door cannot be opened without breaking the electric seal. The electronic seal records any event of breakage.

Electronic seal equipped with a breakage-detecting circuit and method for sealing a door based on the same

A parking information sensing device is disclosed. Each parking space in a parking lot is disposed with a parking information sensing device, detecting whether a car on the parking space. By means of a driving control circuit, the sensing device drives a light emitting unit to emit a light and a reflecting element of the parking space is on a pathway of the light. Light is reflected by the reflecting element and then passes light sensing unit that detects the reflected light and generates a first sensing signal sent to the driving control circuit. Thus the driving control circuit judges if there is no vehicle on the parking space. On the other hand, it judges if there is a car on the parking space according to another sensing signal. The sensing device further includes a first transmitting/receiving unit that forms a wireless mesh network among parking information sensing devices.

Growing community of inventors

Taoyuan, Taiwan

Tung-Jung Hsu