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Temperature detection method and system

A detection method and detection system technology, which can be applied to thermometers, thermometers using electrical/magnetic components directly sensitive to heat, measuring devices, etc. Fast, improve temperature detection efficiency, cost-saving effect

Active Publication Date: 2016-01-27
SHENZHEN ZHENBANG TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a temperature detection method and system, aiming to solve the problem that the traditional temperature detection method cannot be used in some relatively old chips, so developers need to replace better chips to increase the cost, and the traditional The temperature detection method is relatively cumbersome, and the calculation process is more complicated during temperature detection, which reduces the temperature detection efficiency.

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no. 1 example

[0037] The first embodiment of the present invention provides a temperature detection method.

[0038] figure 1 A flow chart of the temperature detection method provided by the first embodiment of the present invention is shown. For ease of description, only parts related to the embodiments of the present invention are shown.

[0039] A temperature detection method, comprising the following steps:

[0040] Step S11: detecting the voltage value at both ends of the thermistor;

[0041] The thermistor is used as a temperature sensor to collect the temperature value of the external components, and then the resistance value R of the thermistor at the temperature value can be obtained according to the characteristics of the thermistor. Using the following formula, the thermal The voltage value across the sensitive resistor:

[0042] V=I·R(1)

[0043] Among them, V is the voltage value at both ends of the thermistor, I is the current value flowing through the thermistor, and R i...

no. 2 example

[0073] A second embodiment of the present invention provides a temperature detection system.

[0074] image 3 A block diagram of the temperature detection system provided by the second embodiment of the present invention is shown. For ease of description, only parts related to the embodiments of the present invention are shown.

[0075] A temperature detection system includes: a temperature detection module 1 , a conversion module 2 , a table look-up module 4 and a calculation module 5 .

[0076] The temperature detection module 1 is used to detect the voltage value at both ends of the thermistor;

[0077] Described thermistor can be negative temperature coefficient thermistor (NTC), also can be positive temperature coefficient thermistor (PTC);

[0078] Conversion module 2, for converting the voltage value into the analog-to-digital conversion value AD' of the thermistor;

[0079] Table look-up module 4, is used for according to preset correspondence table, finds out the...

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Abstract

The invention relates to the technical field of industrial temperature detection and especially relates to a temperature detection method and system. In the embodiment of the invention, only relatively simple addition, subtraction and shifting algorithms are adopted the temperature detection method, and the relatively complex operation such as multiplication and division is not used, so that the temperature detection is more rapid, and the temperature detection efficiency is improved; in addition, the temperature detection method can be used in some relatively old chips, and the cost of chip replacing is saved for exploitation personnel.

Description

technical field [0001] The invention relates to the technical field of industrial temperature detection, in particular to a temperature detection method and system. Background technique [0002] With social progress and industrial development, people pay more and more attention to the influence of temperature on products, and many products have strict requirements on temperature range. In daily life and industrial production process, it is often necessary to detect and monitor the temperature. [0003] However, the traditional temperature detection method has the following disadvantages: (1) The traditional temperature detection method cannot be used in some older chips, so developers need to replace better chips to increase the cost; (2) The traditional temperature detection method The method is relatively cumbersome, and the calculation process is more complicated during temperature detection, which reduces the temperature detection efficiency. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/22
Inventor 陈志杰宋志超
Owner SHENZHEN ZHENBANG TECH
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