Unlock instant, AI-driven research and patent intelligence for your innovation.

Connecting device and anti-jamming system between node devices

A node device and connection device technology, applied in the field of anti-hanging system, can solve the problems of hanging, low TX level, etc., and achieve the effect of preventing hanging, simple composition and low cost

Active Publication Date: 2015-06-17
HUAWEI DIGITAL POWER TECH CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, when the bus status of the RS232 bus side (RS232_TX, RS232_RX) is abnormal, it will cause the TX output level to be normally low, and after Q1 inverts, the RS485 and DE are in the state of data transmission for high level, thus hanging the RS485 bus

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
  • Connecting device and anti-jamming system between node devices
  • Connecting device and anti-jamming system between node devices
  • Connecting device and anti-jamming system between node devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] In the connection device between node devices provided by the embodiment of the present invention, one side of the connection device between node devices is connected to the master node device 25, and the other side is connected to the slave node device 21; and when the bus on the side of the slave node device 21 is abnormal, The connection device receives a normally high or low level; when the connection device outputs a low level to the master node device 25, the master node device 25 is in a data receiving state; when the connection device outputs a high level to the master node device 25, the master node device The node device 25 is in the data sending state. like figure 2 As shown, the connection device includes: an AC coupling unit 22 , a first inverting unit 23 , a power supply unit 26 , and a second inverting unit 24 .

[0045] Specifically, one side of the AC coupling unit 22 is connected to the pin of the slave node device 21, and the other side is connected...

Embodiment 2

[0059] In the connection device between node devices provided by the embodiment of the present invention, one side of the connection device between node devices is connected to the master node device 74, and the other side is connected to the slave node device 71; and when the bus on the side of the slave node device 71 is abnormal, the The connecting device receives a normally high or normally low level; when the connecting device outputs a low level to the master node device 74, the master node device 74 is in a data sending state; when the connecting device outputs a high level to the master node device 74, the master node Device 74 is in the data receiving state. like Figure 7 As shown, the connecting device includes: an AC coupling unit 72 , a first inverting unit 73 , and a power supply unit 75 .

[0060] Wherein, one side of the AC coupling unit 72 is connected to the pin of the slave node device 71, and the other side is connected to the first end of the first invert...

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

An embodiment of the invention provides a connecting device and an anti-jamming system between node devices, belongs to the field of circuits and can realize the anti-jamming effect between the node devices. When a circuit transmits low level to main node device, the circuit is in a data receiving state, and when the circuit transmits high level to main node device, the circuit is in a data transmitting state. The circuit comprises an alternating-current coupling unit, a first anti-phase unit, a power source unit and a second anti-phase unit, wherein one side of the alternating-current coupling unit is connected with auxiliary node device, the other side of the alternating-current coupling unit is connected with a first end of the first anti-phase unit, a second end of the first anti-phase unit is connected with a power source unit, and a third end is grounded. When the alternating-current coupling unit serves as a charge channel, the first anti-phase unit is switched on, and when the alternating-current coupling unit serves as a discharge channel, the first anti-phase unit is switched off. One end of the second anti-phase unit is connected with the second end of the first anti-phase unit, and the other end is connected with the main node device. The connecting device and the anti-jamming system between the node devices are used for overcoming jamming in connection between the node devices.

Description

technical field [0001] The invention relates to the field of circuits, in particular to a connection device between node devices and an anti-hanging system between node devices. Background technique [0002] With the continuous development of communication services, various operators move base stations, and the number of equipment rooms continues to increase. However, due to the different providers of equipment, there are many problems in the connection of communication physical interfaces between equipment. Now a specific solution to the problem of interface docking is proposed. [0003] In sites and computer rooms, for example, when node devices with RS232 physical interfaces need to communicate with node devices with RS485 physical interfaces and are managed by node devices with RS485 physical interfaces, it is necessary to solve the communication docking problem between RS485 physical interfaces and RS232 physical interfaces. [0004] Among them, RS485 is through two pi...

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): G06F13/40
Inventor 魏庆环
Owner HUAWEI DIGITAL POWER TECH CO LTD