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Low-power consumption earth temperature automatic detection device and method thereof

A detector and low power consumption technology, which is applied in the field of low power consumption ground temperature automatic detector and detection, can solve the problems of complex circuit and affecting the acquisition accuracy, and achieve high temperature measurement accuracy, flexible and diverse data reading, and low power consumption Effect

Active Publication Date: 2007-02-28
BEIJING JINGWEI INFORMATION TECH
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Problems solved by technology

But it still uses platinum resistance as the sensor, and a large number of discrete amplifiers, ADCs and other chips are used, which makes the circuit complicated and affects the accuracy of collection

Method used

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  • Low-power consumption earth temperature automatic detection device and method thereof
  • Low-power consumption earth temperature automatic detection device and method thereof
  • Low-power consumption earth temperature automatic detection device and method thereof

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with accompanying drawing and embodiment:

[0019] With reference to Fig. 1, the present invention is made up of four parts of automatic acquisition equipment, hand-held data dump equipment, wireless data transmission module, computer management software. The automatic acquisition device is connected with the handheld device, and the handheld device is connected with the management computer through the serial port. The wireless data transmission module is equipped with one at the end of the automatic collection equipment and one at the management computer, and communicates through the wireless network. The automatic acquisition equipment is composed of main functional modules such as power supply module, AD conversion module, signal acquisition module, storage module, single-chip microcomputer system (CPU), and time system. Before each automatic acquisition device leaves the factory, the computer mana...

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Abstract

The invention relates to a low-power ground-temperature automatic detector and relative detecting method, used to detect the ground temperature on large frozen soil, wherein said detector comprises automatic collector, hand-held device, two wireless data transmitters and manage computer; the automatic collector is formed by power manage module, single chip system, AD converter, signal obtainer, serial port communicator, memory module, and time system; the hand-held device via serial port can lead the data of automatic collector into manage computer. The invention has wide collecting resistance range, high temperature measuring accuracy as 0.05Deg. C, many ports that connecting at most 36 paths of thermal sensitive resistances. And it has low power consumption while month consumption is lower than 10Ah. It can read data via computer directly, and use hand-held device to store the data into USB disc or user wireless communication.

Description

technical field [0001] The invention relates to the detection technology of frozen ground temperature, in particular to an automatic ground temperature detection instrument with low power consumption and a detection method. Background technique [0002] "Automated Instruments" published an article entitled "A Low-Cost Precision Multi-channel Thermometer with an Uncertainty of 0.02°C" in the third issue of 1999. The sensor used for the test of the thermometer is a platinum resistance Pt100. The detection instrument mainly includes two parts: the sampling circuit and the conversion unit, and the single-chip microcomputer system. In the sampling and conversion circuit, a relay is used as a switch, and the platinum resistor adopts a two-wire connection. The microcontroller adopts AT89C52. The working principle is to convert the resistance change of platinum resistance into voltage change through a precision resistor and platinum resistance sensor, and use AD conversion to obta...

Claims

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Application Information

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IPC IPC(8): G08C17/02G01K7/22
Inventor 王成史天运王富章蒋秋华沈海燕冯云梅于鑫
Owner BEIJING JINGWEI INFORMATION TECH
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