According to the composition character, the geological hazard groups may be divided into the frequently-occurring group of identical type of hazard, the associated group, derived group and chain group of different types of hazard.

It included the design of the self-adaptive human-body detection sensor, the communication method of GPRS-Data Terminal Unit(DTU), the solution of anti-collision technology about multi-point concurrent data, the realization of the power supply automatically switching circuit, the design and implementation of the system software functions, etc.