CN208227024U - Novel radio relay and its power information acquisition terminal - Google Patents

Abstract

The utility model discloses a kind of novel radio relays, including terminal body interface, isolation boosting module, PSE power supply module, network isolation transformer module and remote communication module interface；Isolation boosting module is output to PSE power supply module after obtaining power supply power supply signal and isolation boosting from terminal body by terminal body interface；PSE power supply module passes through remote communication module interface to remote communication module power supply after carrying out power management to booster power signal；Network isolation transformer realizes the transmission and electrical isolation of the communication data between terminal body and remote communication module.The invention also discloses the power information acquisition terminals including the novel radio relay.The utility model can carry out signal relaying, and low in cost, high reliablity to the signal of communication of power information acquisition terminal.

Description

Novel radio relay and its power information acquisition terminal

Technical field

The utility model is specifically related to a kind of novel radio relay and its power information acquisition terminal.

Background technique

With the development and the improvement of people's living standards of economic technology, electric energy has become must in people's production and life Indispensable secondary energy sources bring endless convenience to people's production and life.Electric energy meter is as the important of electric system Metering unit carries the vital task of electrical energy measurement.Meanwhile the data of metering are uploaded to power grid main website by electric energy meter, It is one of the vital task of electric energy meter.

Power information acquisition terminal is metering for collecting electric energy meter and operational data and uniformly reports main website, either Receive the main website instruction issued and the equipment for being transmitted to electric energy meter.Therefore, the importance of power information acquisition terminal is self-evident. Power information acquisition terminal generally comprises terminal body and remote communication module, and terminal body is for communicating and obtaining with electric energy meter The data that electric energy meter uploads, or the data forwarding electric energy meter that will be issued；Remote communication module is connect with terminal body, and being used for will The received data of terminal local are uploaded to main website or by telecommunication by telecommunication (such as GPRS perhaps 3G) Mode receives the instruction that main website issues and is transmitted to terminal body.Power information acquisition terminal generally uses split-type design (eventually Hold ontology+remote communication module), its object is to facilitate upgrade and repair of remote communication module etc..

But power information acquisition terminal is often arranged in the bad position of long-range communication signal, such as corner, basement Deng, therefore the long-range communication signal interruption or unstable of power information acquisition terminal is often led to, to seriously affect electric energy Data interaction between table and main website.

Utility model content

One of the purpose of this utility model is that the signal of communication of power information acquisition terminal can be carried out by providing one kind Signal relaying, and low in cost, high reliablity novel radio relay.

The two of the purpose of this utility model are to provide a kind of power information including the novel radio relay and adopt Collect terminal.

This novel radio relay provided by the utility model, including terminal body interface, isolation boosting module, PSE (Power Sourcing Equipment, power supply unit) power supply module, network isolation transformer module and telecommunication mould Block interface；Terminal body interface, isolation boosting module, PSE power supply module and remote communication module interface are sequentially connected, terminal sheet Body interface, network isolation transformer module and remote communication module interface are sequentially connected；Novel radio relay passes through terminal Ontology interface is connect with terminal body, and novel radio relay is connected by remote communication module interface and remote communication module It connects；Isolation boosting module is exported by terminal body interface from terminal body acquisition power supply power supply signal and after carrying out isolation boosting Booster power signal is to PSE power supply module；PSE power supply module exports most after carrying out power management to received booster power signal Whole power supply signal simultaneously powers to remote communication module by remote communication module interface；One end of network isolation transformer module Connect and obtain communication data by the communication interface of terminal body interface and terminal body, network isolation transformer module it is another One end connects remote communication module by remote communication module interface and obtains communication data, network isolation transformer for realizing The transmission and electrical isolation of communication data between terminal body and remote communication module.

Communication between the network isolation transformer module and terminal body, remote communication module is ether Netcom Letter.

The isolation boosting circuit is the isolation liter being made of the power supply chip of model LM3481 and isolating transformer Volt circuit.

The PSE power supply module is to control the PSE power supply module that chip is constituted by the PSE of model TPS23861.

The network isolation transformer module is the net being made of the network isolation transformer chip of model HS12366 Network isolation transformer module.

The invention also discloses a kind of power information acquisition terminal, which includes described new Type relay apparatus.

This novel radio relay provided by the utility model is isolated using PSE powering solution and Ethernet The mode of communication, which is realized, carries out signal relaying to the signal of communication of power information acquisition terminal, thus the utility model can to The signal of communication of power information acquisition terminal carries out signal relaying, and low in cost, high reliablity.

Detailed description of the invention

Fig. 1 is the functional block diagram of the novel radio relay of the utility model.

Fig. 2 is the circuit theory schematic diagram of the isolation boosting module of the utility model.

Fig. 3 is the circuit theory schematic diagram of the PSE power supply module of the utility model.

Specific embodiment

It is as shown in Figure 1 the functional block diagram of the novel radio relay of the utility model: provided by the utility model This novel radio relay, including terminal body interface, isolation boosting module, PSE (Power Sourcing Equipment, power supply unit) power supply module, network isolation transformer module and remote communication module interface；Terminal body connects Mouth, isolation boosting module, PSE power supply module and remote communication module interface are sequentially connected, and terminal body interface, Network Isolation become Depressor module and remote communication module interface are sequentially connected；Novel radio relay passes through terminal body interface and terminal body Connection, novel radio relay are connect by remote communication module interface with remote communication module；Isolation boosting module passes through Terminal body interface exports booster power signal to PSE confession from terminal body acquisition power supply power supply signal and after carrying out isolation boosting Electric module；PSE power supply module exports final power supply signal after carrying out power management to received booster power signal and passes through Remote communication module interface powers to remote communication module；One end of network isolation transformer module by terminal body interface with The communication interface of terminal body connects and obtains communication data, and the other end of network isolation transformer module passes through telecommunication mould Block interface connection remote communication module simultaneously obtains communication data, and network isolation transformer is for realizing terminal body and telecommunication The transmission and electrical isolation of communication data between module.

Communication between network isolation transformer module and terminal body, remote communication module can use ether Netcom Letter；The circuit that network isolation transformer module can be constituted using the network isolation transformer chip of model HS12366.

Be illustrated in figure 2 the circuit theory schematic diagram of the isolation boosting module of the utility model: isolation boosting circuit is served as reasons The isolation boosting circuit that the power supply chip and isolating transformer of model LM3481 is constituted.

3 feet of power supply chip are grounded by resistance R12 and capacitor C11, and 4 feet of chip then pass through resistance sampling circuit (electricity R7, R8 and R11 is hindered to constitute) voltage signal of isolating transformer is sampled, and the feedback pin of chip is input to as closed loop feedback Control amount；6 feet of chip are grounded by pull down resistor R13, and 9 feet of chip are grounded by capacitor C8, and 7 feet of chip are simulation Ground pin is simultaneously directly grounded；5 feet of chip are that digitally pin is also grounded simultaneously；1 foot of chip is electric current input pin, is led to 1~3 foot for crossing resistance R10 connection D1 chip, is grounded simultaneously also by resistance R15, and 1~3 foot of chip D1 also passes through resistance R16 Ground connection；8 feet of power supply chip then pass through 4 feet that resistance R9 is directly connected to chip D1；10 feet of power supply chip are power pins, Pass through pull-up resistor R3 connection+5V power supply signal (V5P0 being indicated in figure, for the power supply power supply signal obtained from terminal body), electricity 2 feet of source chip are grounded by pull down resistor R6, simultaneously also by pull-up resistor R2 connection+5V power supply signal；The type of chip D1 Number be CSD17308Q3, be N-channel high-power MOS tube, function be increase output power；5 feet of D1 chip are drain electrode Output pin is directly connected to 2 feet of isolating transformer T1, and 1 foot of isolating transformer T1 is then directly connected to+5V power supply signal, D1 chip is by the on and off between 5 feet of control and earth signal, to control the original between 1 foot of isolating transformer and 2 feet The energization and power-off of side winding, to form equivalent AC signal and be transmitted to vice-side winding by isolating transformer；Isolation 4 feet of transformer are directly grounded, and 3 feet are grounded by diode V2 and RC circuit (resistance R5 and capacitor C5 are in parallel), while two poles The cathode of pipe V2 then passes through resistance sampling circuit (resistance R7, R8 and R11 are constituted) ground connection；Between 3 feet and 4 feet of isolating transformer Primary side winding be used to sample the output voltage signal of isolating transformer, and sampled signal all the way is obtained by resistance sampling circuit 4 feet of power supply chip are input to, to complete the closed loop feedback control of power supply chip D2；The secondary side of isolating transformer is output End, the 8 feet ground connection of output end, 5 feet are to export positive voltage pin and the+48V direct current final by rectifier diode V1 output Power supply signal；Meanwhile rectifier diode both ends are parallel with RC filter circuit (resistance R1 and capacitor C1) ,+48V power supply signal simultaneously Signal quality also ensure that by filter capacitor C3 and C12 filtering.

Be illustrated in figure 3 the circuit theory schematic diagram of the PSE power supply module of the utility model: PSE power supply module is by type Number for TPS23861 PSE control chip constitute PSE power supply module；1 foot of chip is directly connected to+48V power supply signal and takes Electricity is grounded and is filtered simultaneously also by filter capacitor；2 feet of chip are reset pin, are directly connected to+48V power supply signal simultaneously It is pulled to high level, ensure that chip is constantly in working condition；18 feet of chip are directly grounded, and 19 feet pass through 22.1 Europe The source electrode of the resistance connection switch pipe FDMC3612 of nurse, is grounded simultaneously also by pull down resistor；20 feet of chip directly pass through 47 The drain electrode of the resistance connection switch pipe of ohm, while the also cathode as the power supply signal of output；21 feet of chip are control terminal, Its grid for being directly connected to switching tube (control terminal)；22 feet and 23 feet of chip are directly grounded, and 24 feet of chip are chip Pin is turned off ,+48V power supply is directly connected to and is pulled to high level；28 feet of chip are then directly connected to positive pole；Meanwhile 20 feet of chip as output power supply signal cathode, and connect a TVS pipe SMBJ58A-13-F power positive cathode it Between play a protective role, protect interface not damage internal component by overvoltage.

This novel radio relay provided by the utility model can be used for other any need and carry out wireless relay Electronic equipment, including all types of measuring instruments (such as electric energy meter, water meter, gas meter, flow meter, calorimeter etc.), electric energy management terminal, Distribution terminal, electric energy quality monitoring equipment, grid automation terminal, acquisition terminal, concentrator, data collector, measuring instrument, Write by hand device, fault detector etc..

Claims (6)

1. a kind of novel radio relay, it is characterised in that including terminal body interface, isolation boosting module, PSE power supply mould Block, network isolation transformer module and remote communication module interface；Terminal body interface, isolation boosting module, PSE power supply module It is sequentially connected with remote communication module interface, terminal body interface, network isolation transformer module and remote communication module interface It is sequentially connected；Novel radio relay is connect by terminal body interface with terminal body, and novel radio relay passes through Remote communication module interface is connect with remote communication module；Isolation boosting module is obtained by terminal body interface from terminal body Power supply power supply signal simultaneously carries out after isolation boosting output booster power signal to PSE power supply module；PSE power supply module is to received Booster power signal exports final power supply signal and by remote communication module interface to telecommunication after carrying out power management Module for power supply；One end of network isolation transformer module is connected and is obtained by the communication interface of terminal body interface and terminal body Communication data is taken, the other end of network isolation transformer module connects remote communication module by remote communication module interface and obtains Take communication data, network isolation transformer for realizing the communication data between terminal body and remote communication module transmission with Electrical isolation.

2. novel radio relay according to claim 1, it is characterised in that the network isolation transformer module Communication between terminal body, remote communication module is ethernet communication.

3. novel radio relay according to claim 2, it is characterised in that the isolation boosting module is by type Number for LM3481 power supply chip and isolating transformer constitute isolation boosting module.

4. novel radio relay according to claim 2 or 3, it is characterised in that the PSE power supply module is served as reasons The PSE power supply module that the PSE control chip of model TPS23861 is constituted.

5. novel radio relay according to claim 2 or 3, it is characterised in that the network isolation transformer mould Block is the network isolation transformer module being made of the network isolation transformer of model HS12366.

6. a kind of power information acquisition terminal, it is characterised in that relay and fill including novel radio described in one of claim 1 ~ 5 It sets.