Station control box interface splitter

A brancher and interface technology, applied in the field of station host control box interface expansion equipment, can solve the problems of waste of resources, repeated operations, waste of manpower and material resources, and achieve the effect of reducing costs, meeting on-site needs, and increasing the number of

Inactive Publication Date: 2012-11-28
天津七一二移动通信有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If special wireless train adjustment equipment is designed according to the requirements of this area, it will cause repeated operations in the design and production process, and waste a lot of manpower and material resources. waste of resources

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
  • Station control box interface splitter
  • Station control box interface splitter
  • Station control box interface splitter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] Such as figure 2 As shown, the station platform control box interface splitter includes 485 protocol processor A, 485 protocol processor B, splitter CPU, relay, operational amplifier, and switch circuit. The splitter CPU processes 485 protocol processor A and 485 protocol respectively. Device B, relay, switch circuit connection, branch CPU is provided with 485 serial data interface 1, 485 protocol processor A is provided with 485 serial data interface I, 485 protocol processor B is provided with 485 serial data interface II, the S1 pin of the relay is connected to the MIC audio signal output interface 2, the A pin is connected to the MIC audio signal input interface I, the B pin is connected to the MIC audio signal input interface II, and the operational amplifier is equipped with an AF audio signal input interface 3, AF audio Output interface I, AF audio output interface II, the switch circuit is provided with DC 13.8V power input interface 4, power output interface I...

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 relates to a station control box interface splitter, which comprises a 485 protocol processor A, a 485 protocol processor B, a splitter CPU, a relay, an operational amplifier and a switching circuit. The splitter CPU is connected with the 485 protocol processor A, the 485 protocol processor B, the relay and the switching circuit respectively; a 485 serial data port is formed on the splitter CPU; a 485 serial data port I is formed on the 485 protocol processor A; a 485 serial data port II is formed on the 485 protocol processor B; an S1 pin of the relay is connected with an output interface of an MIC audio signal, an A pin of the relay is connected with an input interface I of the MIC audio signal and a B pin of the relay is connected with an input interface II of the MIC audio signal; an AF audio signal input interface, an AF audio output interface I and an AF audio output interface II are formed on the operational amplifier; and the switching circuit is provided with a DC 13.8V power input interface, a power output interface I and a power output interface II. The station control box interface splitter has the advantages of expanding a station control box interface, increasing the number of external station control boxes, making a plurality of attendants share the same radio station, reducing the system cost and meeting the on-site demand.

Description

technical field [0001] The invention relates to an interface expansion device of a platform host control box, in particular to a station platform control box interface splitter used in a 450MHz railway wireless train dispatching system. Background technique [0002] The railway wireless train dispatching communication system mainly completes the communication functions of the big triangle (communication between the dispatcher, station, locomotive / car captain) and the communication function of the small triangle (communication between the station attendant, locomotive / car captain), which is to ensure the safety of railway traffic. Foundation. There are more than 70,000 kilometers of railways in my country and more than 6,000 stations. Each station is equipped with wireless train dispatching communication equipment. Usually, each station radio station is equipped with a platform control box, and the station attendant completes the communication with the dispatcher, station, a...

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): H04M1/00
Inventor 宋博吴莹
Owner 天津七一二移动通信有限公司
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