A way to detect if someone is in the room

Abstract

The invention discloses a method for detecting whether people exist in a room or not, and particularly relates to a method through which whether people exist in the room or not can be judged even when people keep still. The method is characterized in that information about the open state and the close state of a room door is collected to jointly participate in logistic calculation. The method includes the steps of firstly, reading human body sensing information and room door state information in the room; secondly, if human body sensing information is detected, judging that people exist in the room in the fourth step, renewing the state that no people exist in the room in the sixth step, and executing the first step again to continue the next round of calculation, if no human body sensing information is detected, judging that no people exist in the room in the fifth step if the room door is open in the third step, and directing executing the first step if the room door is not open in the third step. Before then, if people close the door in the room, a human body sensing device certainly has been triggered and the state that no people exist in the room has been renewed into the state that people exist in the room, and then the state that people exist in the room is not changed even when the human body sensing device is not triggered. Thus, the difficult problem of judging whether people exist in the room or not when people keep still is solved.

Description

technical field [0001] The invention relates to a method for detecting whether there is a person in a room, in particular to a method for accurately judging whether there is a person in a room when the human body is still or outside the human body sensing range in the room. Background technique [0002] In the field of smart buildings or smart homes, accurate acquisition of information such as "whether there are people" in a room is very important for the intelligent control system to automatically change the control mode of the room (such as comfort or energy-saving mode) and the automatic control of indoor equipment. decisive role. For example, when the room is "unoccupied", the system can automatically turn off energy-consuming equipment such as indoor air conditioners and lights to avoid unnecessary energy waste; "Comfort" mode), when the temperature, humidity, air quality or illuminance and other indicators do not reach the set value, the indoor equipment can be automa...

AI Technical Summary

Problems solved by technology

[0007] The invention discloses a new method for detecting whether there is a person in a room, and the purpose is to solve the problem that it is impossible to judge whether there is a person in the room when the human body in the room is still or the person is outside the human body sensing range in the room, so as to provide a new method for intelligent buildings. The system or smart home system provides accurate basis for the automatic control of room unit equipment

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