Wireless sensor networks underground garage personal safety alarm system and method

Abstract

The invention relates to a wireless sensor networks underground garage personal safety alarm system and a method. The system firstly needs to deploy a plurality of wireless sensor nodes according to the actual state of the underground garage to ensure that the wireless sensor nodes can cover the entire underground garage without blind spots and blind spots, the security sector outside of the garage needs to be installed with a remote control center to feedback unusual circumstances occurred in the garage, the garage needs to be installed with a lighting switch control receiver and a broadcast switch receiver, each wireless sensor nodes can send the instructions of starting lighting and broadcasting to the receivers. After the deployment, each wireless sensor node starts to monitor within the own perception range, once the words such as help, murder and the like or the screaming like ah is monitored, other wireless sensor nodes are waken up by using a flooding algorithm so as to form a self-organizing wireless sensor network immediately. The wireless sensor node firstly sensing the risk transmits alarm signals to the wireless sensor nodes at the entrance / exit of the garage through the network. The wireless sensor nodes continue to forward alarm information to the remote control center, after the sensor nearest to the lighting switch control receiver and the broadcast switch receiver sensor sends a start command to the receivers after completion of forwarding the alarm information, the lighting equipment and the broadcasting equipment are turn-on until the security personnel go to the scene, and the lighting equipment and the broadcasting equipment are closed after treatment, thus the wireless sensor nodes monitoring re-enters into a monitoring state.

Description

technical field [0001] The invention relates to a personal safety alarm system and method of a wireless sensor network in an underground garage. The sensor network senses sound and converts the sensed abnormal information into alarm information to notify rescuers. Background technique [0002] With the improvement of people's living standards, more and more families have purchased private cars, followed by the construction of a large number of garages. In order to make full use of the space, at present, the construction of garages in various communities, shopping malls and buildings basically adopts Extending downwards, that is, the underground garage, but because the underground garage is not well lit, and even has dead corners, it is dark all year round and is basically in a semi-closed state, so it is easy to become an unsafe area in the community or shopping malls. Happened, the security situation of the underground garage is worrying. Therefore, the personal safety ala...

AI Technical Summary

Problems solved by technology

[0003] At present, the safety research in underground garages mainly focuses on fire prevention, waterproof, and ventilation, but there are no effective protection measures for personal safety. Although many garages are equipped with cameras, due to the complex terrain inside the garage and the dim light, there Shortcomings such as shooting blind spots or poor shooting effects, limited shooting range, and inability to call the police in time for problems

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