Gray bus and its signal detection method

Abstract

The invention relates to a check device, especially providing a check bus arranged in Gray code method as Gray bus, and the method for detecting its signal. The invention comprises a cable sheath, a cable core and a mode core. Wherein, said core comprises at least two couples of core, while one couple is two parallel standard lines, and others are the address lines that crossed in each step; the step of each couple address lines are different, as 2i times of minimum step, while i=0, 1, 2, etc. Said Gray bus and the antenna are communicated via the electromagnetic couple, while detecting the position of antenna at the length direction of Gray bus. The invention uses the electromagnetic couple between the antenna and the Gray bus to transmit information, to realize non-contact position detecting, absolute position detecting with high anti-disturb ability.

Description

technical field [0001] The invention relates to a detection device, in particular to a detection bus bar arranged in a Gray code manner, also called a Gray bus bar, and a signal detection method thereof. technical background [0002] Existing equipment for detecting position or displacement has many disadvantages and deficiencies. For example, equipment that obtains displacement through contact detection has mechanical wear on contact parts, or for some equipment that uses electromagnetic signals for detection, the detection results It is easily affected by electromagnetic interference, environmental noise, fluctuations in received signal levels, etc., or is easily affected by natural environments such as rain, dust, acid and alkali, etc., resulting in low detection accuracy, large errors, and low reliability. Contents of the invention [0003] The invention overcomes the above disadvantages and provides a Gray bus with simple structure and high detection precision and a s...

AI Technical Summary

Problems solved by technology

[0002] Existing equipment for detecting position or displacement has many disadvantages and deficiencies. For example, equipment that obtains displacement through contact detection has mechanical wear on contact parts, or for some equipment that uses electromagnetic signals for detection, the detection results It is easily affected by electromagnetic interference, environmental noise, fluctuations in received signal levels, etc., or is easily affected by natural environments such as rain, dust, acid and alkali, etc., resulting in low detection accuracy, large errors, and low reliability

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