A sine-cosine encoder signal processing device compatible with multiple protocols and types

By designing a multi-protocol multi-type signal processing device compatible with multi-protocol and multi-type, using a single-chip general-purpose processor and electrical signal processing circuit, the problem of different types of encoders needing to be connected to different signal processing devices is solved, and hardware simplified and high-resolution position information is achieved.

CN111366176BActive Publication Date: 2025-03-18BEIJING JINGDIAO GRP CO LTD
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Patent Information

Application Number
CN201811591512.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2018-12-25
Publication Date
2025-03-18
Estimated Expiration
2038-12-25

AI Technical Summary

Technical Problem

In the prior art, different types and protocols of sine cosine encoders lead to the need to access different types of signal processing devices in the application system, resulting in complex hardware circuits and inconvenient use.

Method used

A compatible multi-protocol and multi-type signal processing device is designed, using a single-chip general-purpose processor and electrical signal processing circuit. Through software parameter configuration and the selection of different signal paths, a variety of sine cosine encoder signals are processed to obtain high-resolution position information.

Benefits of technology

It realizes unified processing of multi-protocol multi-type cosine encoder signals, simplifies hardware circuits, improves usage convenience, and obtains high-resolution position information.

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Abstract

The present invention relates to a sine-cosine encoder signal processing device compatible with multiple protocols and multiple types. The device is compatible with multiple protocols and multiple types of sine-cosine encoder signals, and uses different signal paths to process sine-cosine encoder signals to obtain high-resolution position information. It solves the problem that different encoders in the application system need to be connected to different types of encoder signal processing devices, and the circuits are complex and difficult to disconnect. The device includes an encoder signal input interface, an electrical signal processing circuit, and a single-chip general-purpose processor. The electrical signal processing circuit includes a reference point signal processing circuit, an incremental sine-cosine signal processing circuit, a single-turn sine-cosine signal processing circuit, a synchronous serial signal processing circuit, and an asynchronous serial signal processing circuit. The single-chip general-purpose processor processes the input signal through different signal paths to obtain cycle counting information, position subdivision information, and single-turn absolute position information, and obtains high-resolution real-time position information after splicing and integration.
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