Intelligent indoor temperature acquirer

A technology of intelligent collection and indoor temperature, applied to thermometers, thermometer parts, instruments, etc., can solve the problems of large temperature measurement error and high power consumption, and achieve the effect of low power consumption and temperature measurement error

Inactive Publication Date: 2012-09-19
BEIJING JUNHE SHENGSHI ENVIRONMENTAL PROTECTION TECH
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Problems solved by technology

[0003] In order to overcome the shortcomings of existing temperature measuring devices such as large temperature measurement errors and high power consumption, the present invention provides a temperature measurement device, which not only has high temperature measurement accuracy and low power consumption, but also uses solar energy to charge and has a long standby time ,Energy saving and environmental protection

Method used

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Embodiment Construction

[0015] exist figure 1 Among them, the temperature sensor DS18B20 senses the ambient temperature. After the internal circuit processing, the digital signal is sent to the microprocessor ATmega8. The signal is calculated and processed by the ATmega8 and then sent to the LED display. At the same time, it is converted into a 4-20mA signal by D / A. (Optional function), temperature signal can also be read by external equipment through communication, support RS232 / 485 interface, standard Modbus RTU protocol. The power indication, communication status and fault status of the equipment in operation are displayed by the status indication unit. The power supply part is composed of a lithium battery, a solar panel and a DC 5-24V power interface, and the power supply mode can be switched by a dial switch.

[0016] exist figure 2 In , the high temperature coefficient oscillator determines a gating period, and then the temperature can be measured by counting the number of clocks of the low...

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Abstract

An intelligent indoor temperature acquirer is a temperature measurer for indicating indoor temperature. A temperature sensor acquires and processes temperature signals, the temperature signals are transmitted to a signal processor to be processed and calculated, and results are displayed on a display device or transmitted to other equipment via a communication unit. Nonlinear errors are reduced by a DS18B20 temperature measuring principle, linear errors are reduced by piecewise linearity and a least square method, and temperature measurement accuracy is improved. A low-power-consumption element is adopted, and the intelligent indoor temperature acquirer is powered by a lithium battery which is charged by solar energy.

Description

Technical field: [0001] The invention is a temperature measuring device for indicating indoor temperature. It is an intelligent electronic product designed with a high-precision temperature measuring element and a low-power integrated circuit. It is widely used in the thermal industry and other environments that need to measure indoor temperature. Background technique: [0002] At present, the known intelligent temperature measuring device is composed of a temperature sensing unit, a signal conversion unit, a signal processing unit, a temperature display unit, and a communication unit. First, the temperature signal is collected by the temperature sensing unit and processed, and then converted into a digital signal by the signal conversion circuit, and then sent to the signal processing unit for signal processing and calculation, and the result is displayed on the display device or transmitted to other equipment through the communication unit . This traditional temperature m...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K1/00
Inventor 樊克强
Owner BEIJING JUNHE SHENGSHI ENVIRONMENTAL PROTECTION TECH
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