System and method for measuring occupant-level temperature

Abstract

A method (300) for determining temperature in a region (220 / 230) of an environment (200) by compensating for heat-up of a temperature sensor caused by ambient air and / or electronic heating, using a system (100) comprising: (i) a structure (110); (ii) a controller (130); and (iii) a temperature sensor (120), the method comprising: obtaining (320) first temperature measurements while the structure is in a first operating mode; changing (330) the first operating mode of the structure to a second operating mode; obtaining (340) second temperature measurements while the structure is in the second operating mode; determining (350) a temperature correction comprising an effect of the second operating mode on the temperature sensor; obtaining (360) a new temperature measurement during operation of the structure in the second operating mode; and adjusting (370), using the temperature correction, the new temperature measurement to generate a compensated temperature measurement.

Description

technical field [0001] The present disclosure generally relates to systems and methods for determining air temperature at room occupant level using temperature sensors positioned away from room occupant level. Background technique [0002] Heating, ventilation, and air conditioning (HVAC) systems often rely on room temperature measurement using wall-mounted sensors and thermostats. The temperature sensor is usually positioned somewhere in the room away from doors and windows, usually at near the level of the average human head. The air temperature there was found to generally be representative of the perceived air temperature of the entire room, despite sunlight and drafts. [0003] However, wall-mounted temperature sensors have several limitations. For example, they require additional effort and cost because they are installed in or on the wall surface. This requires HVAC design, wiring and equipment installation, usually performed by an HVAC specialist. Additionally, i...

AI Technical Summary

Problems solved by technology

Even more problematic, temperature sensors are subject to heat conduction and radiation from power dissipators such as LEDs, drivers, and signal processors, causing the sensor to take artificially high readings

[0006] Although sensors such as non-contact infrared temperature sensors can take sensor readings remotely from within the space, the use of these sensors creates several important limitations

For example, an infrared temperature sensor obtains measurements from surfaces such as desks or tables, which may experience significant lag in temperature changes, and therefore do not provide accurate readings

Also, temperature sensors are less accurate and more expensive than other temperature sensors and require a viewing lens

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