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Indoor thermal comfort detection system

A technology for thermal comfort and detection system, applied in measurement devices, climate sustainability, instruments, etc., can solve the problems of poor mobility, ill-considered environmental parameters, and low sensor accuracy, and achieves mobility. The effect of strong, strong operability and high signal acquisition accuracy

Inactive Publication Date: 2014-08-20
CHINA HOUSEHOLD ELECTRIC APPLIANCE RES INST
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] However, the existing thermal comfort detection technology has problems such as poor mobility, low sensor accuracy, and poor consideration of environmental parameters.

Method used

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Embodiment Construction

[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0036] figure 2 It is the circuit design diagram of the single-chip microcomputer, in which, pins 11, 14, 28, 37, 64, and 90 of the single-chip microcomputer are connected to 3.3V high level; pins 38, 63, and 89 are grounded; pin 12 VREF is connected to pin VREF0, and the The reference voltage of ADC08 channels is set to 3.3V; 26, 27 pins XTAL1, XTAL2 are connected to 16M external crystal oscillator; 5 pins RST is connected to an external reset button; 18, 20, 22, 24 pins are connected to humidity, temperature, black ball temperature, Wind speed 4-way signal.

[0037] Such as Figure 3-4 , image 3 It is a circuit diagram of a constant current source, which converts resistance changes into voltage changes to obtain a stable current. Port 3 of OP07 is input, and both ends of PT100 are output. The French KIMO black ball is selected, and th...

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Abstract

The invention relates to an indoor thermal comfort detection system. According to the system, high-precision sensors are used for acquiring the air velocity, air temperature, air humidity and mean radiation temperature, and indoor thermal comfort evaluation is performed by selecting an appropriate metabolic rate and a clothing thermal resistance value and comprehensively considering a variety of environmental parameters. The system comprises an information acquisition module, an information core module, a communication module, an information processing module and a piece of information analysis software, wherein the information acquisition module includes the high-precision sensors. The precision of signal acquisition is high, the speed is high, and the extension function is strong; wireless communication is adopted, the power consumption is low, and the mobility is high; and a principal computer has a clear interface and is high in operability, storage is easy, and the principal computer software is a piece of green software.

Description

technical field [0001] The invention relates to the technical field of environmental evaluation, in particular to a comfort degree detection system for controlling the thermal comfort of a human body. Background technique [0002] Thermal comfort refers to people's subjective perception of the thermal environment, and is usually evaluated by the Predicted Mean Vote PMV and the Predicted Percentage of Dissatisfied PPD. The main factors affecting thermal comfort are air temperature, air relative humidity, average radiant temperature, relative air velocity, metabolic rate of human activity and clothing thermal resistance. PMV represents the cold and warm feelings of most people in the same environment, and is divided into 7 grades PMV=-3~3, and the corresponding thermal sensations are divided into cold, cool, relatively cool, moderate, relatively warm, warm and hot. At present, the ISO7730 standard uses the PMV-PPD index to evaluate the thermal environment, and the recommended...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02
CPCY02B60/50
Inventor 宋力强郭子亮李炎
Owner CHINA HOUSEHOLD ELECTRIC APPLIANCE RES INST
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