BISS C protocol data acquisition and display apparatus

A technology of display device and protocol data, applied in the direction of electrical digital data processing, instruments, etc., can solve the problems of no encoder setting method, no encoder data verification, wrong processing and display, etc., to achieve intuitive display and improve Correct rate and stability, effect of reducing error rate

Inactive Publication Date: 2016-03-09
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

[0005] Most of the current existing technologies directly use FPGA or DSP to receive BISSC data without processing and displaying it; there is no way to set the encoder, and there is no verification of the collected encoder data analysis process

Method used

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  • BISS C protocol data acquisition and display apparatus
  • BISS C protocol data acquisition and display apparatus
  • BISS C protocol data acquisition and display apparatus

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Embodiment Construction

[0039] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0040] Absolute shaft encoder is an angle-measuring element commonly used in photoelectric tracking equipment at present, and is used to measure the azimuth and elevation values ​​of the tracking target. The absolute shaft encoder uses a serial interface to exchange data with the data receiving system, and the data format adopts BISSC mode.

[0041] The BISSC protocol data acquisition and display device of the present invention adopts the "DSP+FPGA" mode to exchange data with the absolute shaft angle encoder, compile the angle code value output by it, verify the data, and process it to The azimuth and pitch values ​​collected in the format of "degree / minute / second" are displayed on the LCD screen, and the angle information of the target can be obtained intuitively. This device can be widely used in photoelectric tracking and measuring equipment, real-time and axis an...

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Abstract

The present invention relates to a BISS C protocol data acquisition and display apparatus. The apparatus comprises an encoder data reception and display panel, a power source and a display screen; the power source is capable of supplying power for the encoder data reception and display panel; the display screen is used for displaying data output by the encoder data reception and display panel; and the encoder data reception and display panel comprises a DSP (Digital Signal Processor) plus a DPGA (Field Programmable Gate Array), an external FLASH, an interface chip, a communication chip and the like. The apparatus provided by the present invention adopts a "DSP+FPGA" hardware combination mode and performs data exchange with an absolute-type encoder of BISS C mode data; the FPGA implements whole logic and time sequence control and configures each interrupt of the DSP, and the DSP implements exchange and processing of data, so that logic units have jobs divided clearly, the control program is simplified, and the speed and accuracy of data exchange are improved.

Description

technical field [0001] The invention relates to the technical field of data transmission protocols, in particular to a BISSC protocol data acquisition and display device. Background technique [0002] BISSC is a special data transmission protocol and a data format for data exchange between an absolute encoder and an external system. BISSC mode is a fast synchronous serial interface for encoders to acquire position data, it is a master-slave interface. The master interface controls the position acquisition timing and data transmission speed, while the encoder is the slave interface, and the interfaces are connected by two pairs of unidirectional differential lines. The encoder acquisition and display system based on BISSC mode is called the master interface, and a certain type of absolute encoder is the slave interface. The two pairs of data exchanged by the master-slave interface are called MA and SLO respectively. MA transmits the position acquisition request and timing i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/42
CPCG06F13/4295
Inventor 孙航韩红霞曹立华
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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