Multi-protocol communication board and multi-protocol communication system based on second-order low-pass filter

A communication board and multi-protocol technology, applied in the transmission system, two-party line system station, electrical components, etc., can solve the problems of voice communication being susceptible to interference and instability, and achieve reduced construction costs, high voice quality, and reliability sexual effect

Active Publication Date: 2018-02-23
上海华欣民福自控设备有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a multi-protocol communication board based on a second-order low-pass filter, which solves the problem that the voice communication of the mining hoist is easily disturbed and unstable in the prior art

Method used

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  • Multi-protocol communication board and multi-protocol communication system based on second-order low-pass filter
  • Multi-protocol communication board and multi-protocol communication system based on second-order low-pass filter
  • Multi-protocol communication board and multi-protocol communication system based on second-order low-pass filter

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Embodiment Construction

[0038] Below in conjunction with accompanying drawing, structure and working process of the present invention will be further described.

[0039] The CAN described in this article is the abbreviation of CANBUS, and the two represent the same meaning.

[0040] like figure 1 As shown, a multi-protocol communication board includes a central processing unit, a display unit, a keyboard input unit, an audio processing unit, a communication unit, and an interface unit; wherein,

[0041] The communication unit includes Ethernet communication module, CAN bus communication module and RS-485 communication module;

[0042] The circuit diagram of the CAN bus communication module is as follows: figure 2 As shown, the communication interface is realized through a dedicated high-performance CAN transceiver chip (TJA1051). The external CAN bus power supply is completely isolated from the working power supply of the communication board, which ensures the reliability of the communication boa...

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Abstract

The invention relates to a multi-protocol communication board and multi-protocol communication system based on a second-order low-pass filter, and discloses a multi-protocol communication board. The multi-protocol communication board comprises a central processor unit, a display unit, a keyboard input unit, an audio processing unit, a communication unit and an interface unit. According to the scheme, the one point to multi-point real-time voice intercom (which means that when users speak in one horizontal plane, all horizontal planes can hear) can be conveniently implemented, and moreover, thecommunication board can share a physical link of industrial Ethernet with data of a signal system; the transmission of voice data adopts digital coding, a strong anti-interference ability and good sound quality can be achieved, additional cable laying costs are not needed, the limitation of communication distances does not exist theoretically, the strong anti-interference ability and high voice quality can be achieved, and the multi-protocol communication board is an ideal upgrade scheme of an existing voice call system. The invention also discloses a multi-protocol communication system, thefunction of combining an emergency stop switch function and a voice call function along a belt/a mine vehicle into one in the device can be achieved, the phenomenon that one machine serves several purposes can be realized, and the convenience and flexibility can be achieved.

Description

technical field [0001] The invention belongs to the field of integrated circuit communication, and in particular relates to a multi-protocol communication board and a multi-protocol communication system based on a second-order low-pass filter. Background technique [0002] In mine hoist signal system. The signal system of the hoist is composed of signal boxes on the middle level. The vertical distance between the signal boxes is generally between 100-150 meters. Up to 1000 meters. A large number of analog and digital signals need to be exchanged between each level to ensure the safe and orderly operation of the hoist. The existing hoist signal system generally realizes the exchange of dotting information and operating data between the middle sections of each level through the RS-485 bus or industrial Ethernet. However, staff between various levels often need to coordinate the work of the hoist through voice intercom. The standard serial communication method can meet the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q5/24H04L29/08H04L29/06
CPCH04L67/12H04L69/18H04Q5/24
Inventor 乐斌冯湛许璐吴弟毛瑞刚
Owner 上海华欣民福自控设备有限公司
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