PIR sensor layout method used for personnel position tracking in intelligent household

The invention provides a PIR sensor layout method used for personnel position tracking in intelligent household. The method comprises the following steps of establishing a household plane access heat map; according to the household plane access heat map, determining a PIR sensor layout strategy; according to the PIR sensor layout strategy, carrying out PIR sensor layout in a household environment and carrying out indoor personnel position tracking. In the invention, a passive infrared (PIR) motion sensor is used and acquired only information is whether motion in a footprint of the sensor is generated. Because of sensitivity to a video monitoring technology, positioning precision of a phase candidate sensor position before deployment can be estimated so that expensive cost of trial run which a subject is participated into is virtually eliminated. An improved genetic algorithm is used to solve the problem because the improved genetic algorithm possesses a better global searching capability than other intelligen