Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A bidirectional bus communication circuit and communication method

A two-way bus, communication circuit technology, applied in the direction of bus network, data exchange through path configuration, electrical components, etc., can solve the problems of high power consumption, weak anti-interference ability, short bus communication distance, etc., to achieve low power consumption , The effect of enhancing anti-interference ability and reducing wiring difficulty

Active Publication Date: 2019-07-12
ZHUHAI UNITECH POWER TECH CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, conventional bus communication uses a bus to connect each node in series, which does not support ring or star network, which brings trouble to project wiring, and in the project where the slave power supply needs to be powered by the master, a bus system needs four The cable and engineering wiring construction work is too heavy and the cost is too high. In addition, the communication distance of the conventional bus communication is short, the anti-interference ability is weak, the power consumption is large, and the load slaves that can be supported are few

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A bidirectional bus communication circuit and communication method
  • A bidirectional bus communication circuit and communication method
  • A bidirectional bus communication circuit and communication method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention will be described in detail through the following embodiments. However, those skilled in the art should understand that the following embodiments do not limit the protection scope of the present invention, and any improvements and changes made on the basis of the present invention fall within the protection scope of the present invention.

[0027] figure 1 As shown, it is a schematic circuit diagram of the two-way bus communication circuit of the present invention, including a host device, several slave devices and a bus. The bus includes BUS+ and BUS-. As shown in the figure, the two cables of the host device BUS+ and BUS- are connected to The BUS+ and BUS- cables of the slave device are connected separately. The two-way bus communication circuit is powered by an external power supply device (not shown in the figure). The external power supply device supplies the input voltage V1 and input voltage V2 of the host device. The host device then supplies ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a bidirectional bus communication circuit which comprises a host device, a plurality of slave devices and buses, wherein the host device is connected with the slave devices via the buses; the host device comprises a host data sending circuit, a host data receiving circuit and a host CPU; and each slave device comprises a slave data sending circuit, a slave data receiving circuit and a slave CPU. The invention further provides a bidirectional bus communication method which comprises the following steps: S1, the host device supplies power for or charges the slave devices; S2, data of the host device data is downlinked, while the slave devices receive the downlinked data; and S3, data of the slave devices is uplinked, while the host device receives the uplinked data. The bidirectional bus communication circuit provided by the invention can adopt various topology modes, and supports various modes such as an annular mode and a star-like mode, so that the engineering difficulty is greatly reduced in the aspects of topology modes, cable cost and wiring difficulty, the bidirectional bus communication circuit can support long-distance communication, up to 128 slave loads, and a low-power mode, and anti-jamming capability is enhanced.

Description

Technical field [0001] The invention relates to the field of bus communication, in particular to a two-way bus communication circuit and a communication method. Background technique [0002] Compared with the traditional point-to-point communication, bus communication has greatly improved, not only can effectively reduce the complexity of the connection, but also increase the utilization rate of the connection, so the bus communication is now widely used in various professional communication fields. [0003] However, conventional bus communication uses a bus to connect each node in series, and does not support ring or star networks, which brings trouble to the engineering wiring. In addition, in the project where the power supply of the slave machine needs the power supply of the master, a bus system requires four The workload of cable and engineering wiring construction is too large and the cost is too large. In addition, the communication distance of conventional bus communicatio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/40
CPCH04L12/40006H04L12/40045H04L12/40182
Inventor 张志斌李保福
Owner ZHUHAI UNITECH POWER TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products