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Method for signal collection

A technology for collecting signals and signal values, which is applied to thermometers and instruments that use electric devices and electric/magnetic components that are directly sensitive to heat, can solve problems such as increasing the burden of daily maintenance, and achieve real-time sampling and save power. The effect of saving and saving power consumption

Inactive Publication Date: 2011-05-11
SANGXIA COMP & ARTIFICIAL INTELLIGENCE DEV SHENZHEN CITY
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Problems solved by technology

This is detrimental to the long-term normal operation of the wireless temperature measurement system, and it will also increase the burden of daily maintenance

Method used

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  • Method for signal collection
  • Method for signal collection
  • Method for signal collection

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Embodiment Construction

[0030] figure 1 It shows a working flow block diagram of a wireless temperature detection system for high-voltage power equipment using the method of the present invention for temperature detection. The detection system includes a front temperature detection unit and a rear data processing unit. The temperature detection unit includes a temperature sensor, a dedicated temperature measurement chip MAX6675, a microprocessor ATMEGA48, and an infinite transmitter module NRT24101. The data processing unit is provided with an infinite receiving module (infinite receiving module figure 1 not shown). The special temperature measuring chip MAX6675 and the microprocessor ATMEGA48 constitute the signal acquisition and processing module of the temperature detection unit.

[0031]The temperature sensor collects the temperature of the temperature measurement point, and the temperature data is sent to the signal acquisition and processing module. The signal acquisition and processing modul...

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Abstract

The invention provides a signal acquisition method. The method comprises a signal transmission process after obtaining various sampling signal values. The signal transmission process comprises the following steps: selecting an acquired signal value as a first signal value and transmitting the first signal value; then comparing each signal value from a second signal value after the first signal value with a previous signal value, and transmitting the signal value if the difference value between the signal value and the previous signal value exceeds a certain numerical value or a certain ratio.In the method, the difference values between the signal values are compared and judged to determine whether the signal values are transmitted or not, thus saving the power consumption of the transmission link; and the method helps control the sampling frequency in real time, thus reducing unnecessary sampling times and saving the power consumption of the transmitting link. The method merges the real-time sampling and electricity saving.

Description

【Technical field】 [0001] The invention relates to a method for collecting signals, in particular to a method for collecting signals which can better balance power consumption and real-time sampling. 【Background technique】 [0002] With the development of the power grid and the improvement of equipment technology, the working conditions in the high-voltage power grid are complicated, such as high / low voltage switchgear, power cables, high-power motors, and transformers. The junction temperature of high-voltage equipment is a very important data, which involves the capacity of the grid circuit and the operating state of the equipment, and is the necessary data for analyzing the safe operation of the circuit. Due to the high-risk characteristics of high-voltage equipment, direct measurement of temperature data is dangerous. In the prior art, a wireless temperature measurement system has appeared. The temperature sensor collects temperature data according to a certain sampling ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K7/00
Inventor 黄飞宁伟东古远东
Owner SANGXIA COMP & ARTIFICIAL INTELLIGENCE DEV SHENZHEN CITY
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