Non-polar two-line system communication circuit

A communication circuit, two-wire technology, applied in the fixed station through two conductor transmission systems and other directions, can solve the problems of wiring errors, damage to master and slave components, and high costs, and achieve the effect of reducing requirements.

Active Publication Date: 2012-01-18
SHENZHEN MCQUAY AIR CONDITIONING
View PDF5 Cites 32 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like figure 1 As shown, in the traditional four-wire communication connection mode, the master end of the air conditioner and the slave end of the air conditioner use two communication lines for communication between the master end and the s

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
  • Non-polar two-line system communication circuit
  • Non-polar two-line system communication circuit
  • Non-polar two-line system communication circuit

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0013] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0014] like figure 1 As shown, in air-conditioning equipment or other household appliances in the prior art, a four-wire transmission method is used for communication between the master end and the slave end, that is, the TXD pins and RXD pins of the microprocessors at the master and slave end are connected to each other. , the two power lines on the host end, together with the signal line, are drawn out from the terminal block, and serve as power supply lines for the slave end, so that the host end supplies power to the slave end. The master end may be an air conditioner indoor unit controller, and the slave end may be a thermostat of the air conditioner.

[0015] like figure 2 As shown, the non-polar two-wire communication circuit of the present invention has a master end and a slave end, the master end is provid...

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 discloses a non-polar two-line system communication circuit which aims to solve the technical problem of preventing the occurrence of errors in the process of connection. The invention adopts the following technical scheme: a non-polar two-line system communication circuit comprises a host terminal and a slave terminal, wherein the host terminal is connected with the slave terminal and controls the slave terminal, the inside of the host terminal is provided with a host-terminal sending and receiving line module, the inside of the slave terminal is provided with a slave-terminal sending and receiving line module, and the host-terminal sending and receiving line module is connected with the slave-terminal sending and receiving line module in a non-polar two-line system connection mode. Compared with the prior art, an indoor unit controller for air conditioners supplies power for a temperature control device for air conditioners and carries out communication with the temperature control device by a power line, and the connection mode is a non-polar connection mode; and two lines can simultaneously carry out power supply and communication, thereby solving the problem that two lines simultaneously supply power and transmit signals, and reducing the demands on leads and installation.

Description

technical field [0001] The invention relates to a household appliance, in particular to a communication circuit of the household appliance. Background technique [0002] At present, for some bus communication commonly used in engineering, such as RS485, CAN, or other TTL communication methods, the communication line and power line are often set separately, that is, two lines cannot be used for power supply and communication at the same time. However, due to the limitation of cost, the application is greatly limited. The thermostat of the air conditioner needs to communicate with the indoor unit, and also needs to be powered by the indoor unit. The prior art uses two power lines for power supply. like figure 1 As shown, in the traditional four-wire communication connection mode, the master end of the air conditioner and the slave end of the air conditioner use two communication lines for communication between the master end and the slave end, and the master end uses two pow...

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
IPC IPC(8): H04B3/50
Inventor 雷勇林华俤孙建峰罗炽学刘争明倪健付洪钢王信重
Owner SHENZHEN MCQUAY AIR CONDITIONING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap