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Transmission system for converting 9-channel coder signals into 1000Mbps PHY signals

A transmission system and encoder technology, which is applied in the field of robot data communication protocol conversion, can solve the problems of high signal delay, poor stability, and high cost, and achieve the effects of low delay, enhanced stability, and cost saving

Inactive Publication Date: 2016-05-04
HARBIN BO QIANG ROBOT TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to overcome the problems of poor stability, high signal delay, complicated wiring and high cost during the signal transmission process of the robot encoder, and propose a 9-channel encoder signal to 1000Mbps PHY signal transmission system

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  • Transmission system for converting 9-channel coder signals into 1000Mbps PHY signals
  • Transmission system for converting 9-channel coder signals into 1000Mbps PHY signals

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Embodiment Construction

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0015] Such as figure 1 with figure 2 As shown, a transmission system for converting 9-channel encoder signals to 1000Mbps PHY signals, including PHY chip circuits U1, U2, digital photocouplers U3~U11, 485 transceivers U12~U20, RJ45 sockets J1, J2 with isolation transformer, FPGA Chip circuit 1, EPCS configuration chip circuit 2, Jtag interface 3 and SM-6P-PCB socket J3~J11,

[0016] The two MII digital signal output and input terminals of the FPGA chip circuit 1 are respectively connected to the MII digital signal input and output terminals of the PHY chip circuits U1 and U2; the differential data signal output and input terminals of the PHY chip circuits U1 and U2 are respectively connected to the RJ45 with isolation transformer Sockets J1 and J2; the first 485 digital signal input and output ends of FPGA chip circuit 1 are connected to t...

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Abstract

The invention relates to a transmission system for converting 9-channel coder signals into 1000Mbps PHY signals, belonging to the technical field of data communication protocol conversion of robots. The transmission system comprises PHY chip circuits U1 and U2, digital photoelectric couplers U3-U11, 485 transceivers U12-U20, RJ45 sockets J1 and J2 with isolation transformers, an FPGA chip circuit, an EPCS configuration chip circuit, a Jtag interface and SM-6P-PCB sockets J3-J11; the two-channel MII digital signal output and input ends of the FPGA chip circuit are respectively connected with the MII digital signal input and output ends of the PHY chip circuits U1 and U2; the differential data signal output and input ends of the PHY chip circuits U1 and U2 are respectively connected onto the RJ45 sockets J1 and J2 with the isolation transformers; and a master station and a slave station are arranged simultaneously. The transmission system provided by the invention satisfies high-stability, low-delay, long-distance and low-cost transmission requirements of industrial robots to coder data communication in a complex electrical environment, and simultaneously satisfies the high-refreshing-speed requirements of a robot controller to the coder data.

Description

technical field [0001] The invention relates to a system and method for converting 9-way encoder signals to 1000Mbps PHY signal transmission, and belongs to the technical field of robot data communication protocol conversion. Background technique [0002] There are many kinds of existing absolute encoder transmission protocols, such as EnDat protocol, BISS protocol, RS485 protocol, etc. These protocols mostly follow the RS485 and RS422 protocols in hardware. Its transmission rate is limited by its transmission distance, and it is difficult to reach the current speed (2.5Mbps) when the transmission distance is long. For multi-axis robots (6-9 axis robots), the above communication methods require 6-9 independent 4-core cables for transmission, which is not conducive to the stability of the system, and the cables are relatively expensive. The encoder data transmission mode based on the MAC protocol or other protocols has a high delay, which is not suitable for many robot syste...

Claims

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Application Information

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IPC IPC(8): H04L29/06
CPCH04L69/08
Inventor 孔民秀周文彪张彦钦
Owner HARBIN BO QIANG ROBOT TECH CO LTD
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