High-risk place safety guarantee system of digital wireless sensor network
A wireless sensor network and security technology, applied in signal transmission system, network topology, wireless communication and other directions, can solve the problems of loss of system practicability, acquisition accuracy and unsatisfactory free networking, and achieve the safety of personnel life. Effect
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[0022] As shown in the figure, in the system of the present invention,
[0023] 1. The watch module, including two wrist devices, collects pulse and heart rate data through skin contact electrodes and preprocesses them; short-range (ZIGBEE) receives data from other parts and transmits them remotely (3G);
[0024] 2. The helmet module includes a helmet attachment device, which collects the motion trajectory through radar, compass, height sensor, and acceleration sensor, and transmits it to the watch after pre-processing the short-range (ZIGBEE);
[0025] 3. The air breathing module collects air pressure and ambient temperature through temperature and pressure sensors and transmits them to the watch in a short distance (ZIGBEE);
[0026] 4. The PDA module, including a handheld PDA device, obtains the movement trajectory of the designated person and the holder from the command center module to complete the search function;
[0027] 5. The command center module includes a command center sys...
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