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

A communication system and multi-protocol technology, applied in the transmission system, two-party line system stations, electrical components, etc., can solve problems such as instability, voice communication is susceptible to interference, etc., to reduce infrastructure costs, no laying costs, and ensure reliability sexual effect

Active Publication Date: 2021-08-10
上海华欣民福自控设备有限公司
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  • Abstract
  • Description
  • Claims
  • 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

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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] Such as 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 ...

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Abstract

A multi-protocol communication board and a multi-protocol communication system based on a second-order low-pass filter. The invention discloses a multi-protocol communication board, which includes a central processing unit, a display unit, a keyboard input unit, an audio processing unit, a communication unit, and an interface unit; The horizontal plane can speak, all horizontal planes can hear), and this communication board can share the physical link of industrial Ethernet with the data of the signal system. The transmission of voice data adopts digital coding, strong anti-interference ability, good sound quality, no additional cable laying costs, theoretically not limited by communication distance, strong anti-interference ability, high voice quality, it is an ideal upgrade of the existing voice communication system Program. A multi-protocol communication system is also disclosed, which realizes that the emergency stop switch function and the voice call function along the belt / monkey car can be combined into one function in the device. One machine with multiple functions, convenient and flexible.

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 uses the RS-485 bus or industrial Ethernet to realize the exchange of dot information and operating data between the middle sections of each level. However, the staff between the various levels often need to coordinate the work of the hoist through voice intercom. The standard serial communication method can meet t...

Claims

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Application Information

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