CN202178765U

CN202178765U - Communication repeater

Info

Publication number: CN202178765U
Application number: CN2011203590479U
Authority: CN
Inventors: 尹德成; 崔凤霞; 高山嵩; 孙娜
Original assignee: SHANDONG ZHONGRUI ELECTRIC CO Ltd
Current assignee: SHANDONG ZHONGRUI ELECTRIC CO Ltd
Priority date: 2011-08-24
Filing date: 2011-08-24
Publication date: 2012-03-28
Anticipated expiration: 2021-08-24

Abstract

The utility model provides a communication repeater including a 48V DC power source, a CPU, an uplink communication module and a downlink communication module. A signal terminal of the CPU connects with the uplink communication module and the downlink communication module separately. The uplink communication module is composed of at least two modules among a serial communication module, a mobile communication module and a network communication module. By arranging the uplink communication module in multiple types in the utility model, the communication repeater can realize communication in at least one method in a comparatively poor condition, thereby solving the problem of disconnection of the repeater and enabling the use of the repeater to achieve an effect of once and for all generally. Once the communication repeater is installed in a site, the communication repeater can be used smoothly, thereby lowering the maintenance cost of the communication repeater. By adopting a 48V DC input, the safety of worker in onsite equipment maintenance is also improved.

Description

The communication repeater

Technical field

The utility model provides a kind of communication repeater, belongs to the communication technical field of electric power system.

Background technology

Include repeater in the communication equipment of electric power system, normally be arranged between ammeter or ammeter terminal and the electric power main website, mainly be used for the uploading, assign of the information that realizes.Existing repeater; Like the extension frequency carrier data link; It comprises the extension frequency carrier circuit, and the extension frequency carrier circuit is made up of single-chip microcomputer, serial data memory, extension frequency carrier integrated circuit, power amplifier, coupler, triode, and the extension frequency carrier circuit is connected with the output of serial ports conversion chip; The input of serial ports conversion chip is connected with the output of computer, and input end and computer connects telephone wire.Utilize the transmission means of telephone network and extension frequency carrier to carry out the transmission of data, and adopt three groups of separate carrier modules to carry out the coupling of signal, with centralized control electric network data.

The uplink communication unit of existing repeater is made up of the GPRS communication module; Because some technical problems that GPRS communication module itself exists; For example: the working temperature of GPRS chip, the temperature of site environment, humidity, problems such as the contact of GPRS draw-in groove is unstable, the signal power of GPRS own is inconsistent, mobile service main station failure; Cause the uplink communication of repeater to occur often going offline; Cause repeater to interrupt, can not satisfy the real-time requirement of communication of power system well with communicating by letter of main website.And; In a single day operation irregularity even out-of-work phenomenon take place in existing repeater; Usually need send the special messenger repeater to be carried out the outage of repetition and heavily powers on and the antenna of GPRS communication carried out maintainability such as shift position and operate to on-the-spot going; This can increase the maintenance cost of system greatly, brings loss for the owner or the user of the electric power system such as power supply administration, and; Because the repeater most cases is mounted in the more abominable place of environment, on-the-spot maintainability operation brings danger also can for the staff who specifically is engaged in maintenance work.

The utility model content

The purpose of the utility model provides a kind of deficiency that can overcome prior art, can reduce maintenance cost greatly and improve the communication repeater of on-site maintenance processing safety.Its technical scheme is:

Comprise 48VDC power supply, CPU, uplink communication unit and downgoing communication unit; Wherein the signal end of CPU connects row communication unit and downgoing communication unit respectively, it is characterized in that: the uplink communication unit is made up of two modules in serial communication module, mobile communication module, the network communication module at least.

Described communication repeater; The serial communication module adopts RS232 communication module or RS485 communication module; The mobile communication module adopts the GPRS communication module; The network communication module adopts Wi-Fi communication module or internet communication module, and the RX signal end of above-mentioned module and TX signal end connect TX signal end and the RX signal end of CPU respectively.

The utility model compared with prior art, its advantage is:

1, adopts the communication repeater of the utility model, through multiple uplink communication module is set, even make again environment than under the condition of severe; Repeater also has a kind of mode can realize communication; Thereby solved the problem that repeater goes offline, made the use of repeater can reach the effect of " putting things right once and for all " basically, in case be installed to the scene; Just can use smoothly, can reduce the maintenance cost of equipment.

2,, also improved the staff and carried out the fail safe that device context is safeguarded through adopting the 48VDC input.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment.

Among the figure: 1, CPU 2, uplink communication unit 3, downgoing communication unit 4, serial communication module 5, mobile communication module 6, network communication module

Embodiment

In the embodiment shown in fig. 1: the 48VDC power supply connects CPU1, uplink communication unit 2 and downgoing communication unit 3 and is its power supply; Uplink communication unit 2 is made up of serial communication module 4, mobile communication module 5, network communication module 6; Wherein serial communication module 4 adopts the RS232 communication module; Mobile communication module 4 adopts the GPRS communication module; Network communication module 6 adopts the Wi-Fi communication module, and the TX signal end of CPU1 and RX signal end connect the RX signal end and the TX signal end of row communication unit 2 and downgoing communication unit 3 respectively.

Claims

1. communication repeater; Comprise 48VDC power supply, CPU (1), uplink communication unit (2) and downgoing communication unit (3); Wherein the signal end of CPU (1) connects row communication unit (2) and downgoing communication unit (3) respectively, it is characterized in that: uplink communication unit (2) are made up of two modules in serial communication module (4), mobile communication module (5), the network communication module (6) at least.

2. communication repeater as claimed in claim 1; It is characterized in that: serial communication module (4) adopts RS232 communication module or RS485 communication module; Mobile communication module (4) adopts the GPRS communication module; Network communication module (6) adopts Wi-Fi communication module or internet communication module, and the RX signal end of above-mentioned module and TX signal end connect TX signal end and the RX signal end of CPU (1) respectively.