Battery life extender for indoor air quality sensor

• Main Author: VAN DER KOOI, CHRISTOPHER, C
• Format: Patent
• Language: Chinese; English
• Published: 01.07.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; ELECTRICITY; PHYSICS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

A method of extending battery life of a battery powered indoor air quality (IAQ) sensor includes an IAQ detector, a radio, a battery, and a microcontroller having a memory and a processor. The method comprises: detecting IAQ at predetermined intervals to provide IAQ levels; and storing the IAQ level and the corresponding timing data in a memory. The method further includes determining an occupancy schedule based on the IAQ level pattern; and subdividing the occupancy schedule into a plurality of periods. The method further includes determining an occupancy state for each time period based on the IAQ level. The method further includes operating the IAQ detector to sample at an active interval when the occupancy state is occupancy and at an inactive interval when the occupancy state is unoccupancy. The inactive interval is longer than the active interval. The IAQ detector may be, for example, a CO2 detector or a VOC detector. 一种延长电池供电的室内空气质量(IAQ)传感器的电池寿命的方法，所述传感器包括IAQ检测器、无线电、电池和具有存储器和处理器的微控制器。该方法包括：以预定间隔检测IAQ以提