CN2518112Y - Small power load administrative terminal contg. multi-route metering simulation active watt-hour meter - Google Patents

Abstract

The utility model provides a small-sized power load management terminal having a multi-channel measurement simulation active electric meter and used on a power management system for remote meter reading, electricity forward purchase and anti-electricity stealing. Because the utility model adopts a technology of the short message of the public wireless communications network or the public wire local telephone network as a digital transmission channel without an special wireless frequency point, and the utility model also adopts the building block combined type structure and the jack type connection of the multi-channel measurement simulation active electric meter to solve the problems of small terminal, low cost and convenient operation, the utility model has the advantages of small investment, low cost and small size, as well as the utility model can be widely applied in the power management systems.

Description

The miniaturization electric power load management terminal that contains multiple metering simulation active electric energy meter

The utility model provides a kind of miniaturization electric power load management terminal that contains multiple metering simulation active electric energy meter of purchasing electricity, the anti-electricity-theft usefulness of long distance meter reading that gives in power consuming administrative system.

Electricity load management terminal is widely used in recent years, and it is delivered a letter as main number with the dedicated radio frequency range.Have forward purchasing electricity, long distance meter reading, multinomial management of power use function such as anti-electricity-theft, can realize Centralized Monitoring.Through our discoverys of analyzing and researching, following some deficiency is arranged still: the one, the system of foundation needs the radio frequency of special use as its main channel.Owing to there is not the private radio frequency, can not set up advanced power load management system as some large enterprises (oil field, rural power etc.).The 2nd, the existing power load management system is because an electric energy meter is adopted in each analog measurement loop, road respectively, and insert respectively in the secondary circuits such as former instrument circuit of each analog loopback, its drawback is, when the multi-channel analog loop need be measured, the polylith gauging table need be installed, shared dress table space is big, is unfavorable for realizing the miniaturization of terminal.The 3rd, the field wiring complexity, waste time and energy.The 4th, the cost height.

At above-mentioned problems of the prior art, the purpose of this utility model, be to overcome deficiency of the prior art and provide a kind of public communication networks (wireless short message breath or public wired local network) to count biography, be used for long distance meter reading, give the miniaturization electric power load management terminal that contains multiple metering simulation active electric energy meter of purchasing electricity, anti-electricity-theft usefulness, good through trial effect, this terminal is by public communication network transmission mode, have to give and purchase electricity, long distance meter reading, anti-stealing electricity function, and cost is low, the on-the-spot characteristics such as easy-to-connect and miniaturization of installing.

The utility model is achieved in that the inventor develops a kind of novel miniaturization electric power load management terminal that contains multiple metering simulation active electric energy meter according to working practice in conjunction with the prior art present situation, this terminal is applied to passing in mode or the public wired local network with the short message number of public wireless telecommunications net, realize long distance meter reading, give and purchase electricity, anti-electricity-theft three load management functions that it is made up of basic function modules such as communication, modulation, control, processing, intelligent meter data recording, storage, the meritorious metering of simulation, fault detect, clock generator, power supplys.All modules all are contained in the metal case (as Fig. 1).Its inner structure adopts a kind of typical brick pattern array mode (as Fig. 1) under aforementioned three function prerequisites of the prior art guaranteeing to reach on this terminal overall applicability, and its anti-stealing electricity function is to adopt electric weight comparison expression principle and newly-designedly simulate active electric energy meter (as Fig. 3) with multiple metering and measure the meritorious electric weight of analog loopback.The long distance meter reading function of this terminal comprises that main website selects at random to copy the real-time table number, freeze to show number and this terminal by setting different modes such as being freezed number by Time Triggered to main website transmission table.Give and purchase the process that electric work can realize and be: this terminal only passes link as the number that receives definite values such as purchasing electric weight, alarm electric weight from main website and be transmitted to electric energy meter, purchases electric closed-loop control and is finished by electric energy meter.Parameters setting of the present utility model can be adopted dual mode, and promptly main website issues and is provided with and is provided with notebook computer by terminal RS-485 communication port.Information code shortens length through overcompression, is convenient to the short message transmission.The intelligent meter data recording module has pulse to check meter and the RS-485 mouth of checking meter.The pulse mouthful continuous reception table meter pulse of checking meter, through adding current transformer (CT) no-load voltage ratio, the computing of voltage transformer (VT) (PT) no-load voltage ratio and three parameters of table constant converts the expression number to and deposits storer in for reading.The typing of intelligent meter data recording module the multiple stipulations of checking meter make a copy of dissimilar tables for the RS-485 mouth, the processing module relatively measures meritorious electric weight and always adds the ratio that always adds with the meritorious electric weight of analog quantity, find that its ratio deviation surpasses when setting warning value, stores as incident, and reports main website as Event triggered.Storer is preserved the total value added and multiplexing electric abnormality zero-time of the total value added and measurement loop least bit electric weight of the analog loopback least bit electric weight of 24 time points, 3 months every days, duration, the unusual loss of accumulative total electric weight.The power supply module is transformed to direct current 12V working power with alternating current 220V power supply (or 100V power supply).Module includes long-life batteries, when external power supply interrupts for some reason, the background terminal power supply is provided, guarantee that terminal can send a frame accident report information frame to main website by Event triggered, provide fault to occur to simultaneously to eliminate and recover the gain merit working power of table, intelligent meter data recording module, control module and memory module of simulation during the outer power supply source.The multiple metering simulation active electric energy meter that is adopted in this terminal is a kind of electric energy meter that can measure the meritorious electric weight in multi-channel analog loop simultaneously, it has adopted building blocks inserter structure mode, form by the identical meritorious metering prototype board of 1-4 piece and a tapping plate, every meritorious metering prototype board measures one road analog loopback, according to metering way needs, the changeable template is to adjust the metering way.Tapping plate is used for direct current 12V power supply and the expansion of RS-485 interface line are connected to each analog measurement prototype board.Every metering template of multiple metering simulation active electric energy meter is made up of A/D analog to digital conversion circuit, meritorious special-purpose measuring IC and calendar clock.Analog quantity is sampled with voltage sensor and current sensor mode, is connected with the meritorious table of socket mode and simulation.

The utility model is compared with prior art: have with the miniaturization terminal and set up the low advantage of the little operating cost of system's one-time investment, as the power load management system of building an enterprise need not to build the internal network of main website, only need purchase a station server and peripheral accessory, invest about tens0000 yuan, can save more than 200 ten thousand yuan, because it is little that the dress table takes up room, terminal volume is little, has realized the terminal miniaturization; On-the-spot installation and maintenance is convenient.

Fig. 1 is the miniaturization electric power load management terminal one-piece construction synoptic diagram that contains multiple metering simulation active electric energy meter, 1 is multiple metering simulation active electric energy meter among the figure, the 2nd, the intelligent meter data recording prototype board, the 3rd, control, processing, storage and clock generator prototype board, the 4th, power supply prototype board, the 5th, modulator-demodular unit prototype board, the 6th, embedded mobile phone, the 7th, the miniature antenna of band screen fraud feeder line, the 8th, metal case.

Fig. 2 is the miniaturization electric power load management terminal block scheme that contains multiple metering simulation active electric energy meter, 1 is multiple metering simulation active electric energy meter among the figure, the 2nd, the intelligent meter data recording prototype board, the 3rd, control, processing, storage and clock generator prototype board, the 4th, the power supply prototype board, the 5th, modulator-demodular unit prototype board, the 6th, embedded mobile phone.

Fig. 3 is multiple metering simulation active energy list structure, connection diagram, 9 is embedded meritorious metering prototype boards among the figure, the 10th, tapping plate, the 11st, the connecting line between meritorious metering prototype board and the tapping plate, the 12nd, voltage sensor connects socket (figure), and the 13rd, induction 100V formula voltage sensor, the 14th, induction secondary current sensor, the 15th, induction 380V formula voltage sensor, the 16th, induction primary current sensor, the 17th, current sensor socket (square).

Fig. 4 is the miniaturization electric power load management terminal rig-site utilization synoptic diagram that contains multiple metering simulation active electric energy meter, 8 metal case that modules such as multiple metering simulation active electric energy meter are housed in being among the figure, the 13rd, induction 100V formula voltage sensor, the 14th, induction secondary current sensor, the 15th, induction 380V formula voltage sensor, the 16th, induction primary current sensor, the 18th, public wireless communication networks, the 19th, main website, the 20th, metering electric energy meter.

Below in conjunction with accompanying drawing embodiment is described: at first buy material requested and module from market by designing requirement, then press the thin portion of accompanying drawing structure fabrication parts and module, multiple metering simulation active electric energy meter (1) mainly is made up of the identical embedded meritorious metering prototype board 9 of 1-4 piece as can be seen from Figure 3, it is a kind of surface-mounted integrated circuit that is exclusively used in the meritorious electric weight of metering, every meritorious metering prototype board 9 meterings one road analog loopback; Tapping plate 10, with it with the direct current 12V power supply introduced and RS485 interface respectively with and the mode that connects be divided into multichannel (maximum 4 tunnel) and offer each prototype board working power and meter reading data line; Connecting line 11 between meritorious metering prototype board and tapping plate; Circular socket is that voltage sensor connects socket 12; Be provided with 5 in the side (as Fig. 3) of multiple metering simulation active electric energy meter 1 and penetrate mouth and will respond to the sense line of secondary current sensor 14 and induction primary current sensor 16 inlet that wears long and introduce and be plugged in the square socket that respective mode is intended loop gauging table prototype board in the watchcase, the sense line of induction 100V formula voltage sensor 13 and induction 380V formula voltage sensor 15 inlet that wears long is introduced the circular socket that is plugged in respective mode plan loop gauging table prototype board in the watchcase.Make current sensor and connect socket 17; With the intelligent meter data recording prototype board 2 of special IC plate making with 4 pulse mouths and 1 RS485 mouth; Make control, processing, storage and clock generator prototype board 3 with the special IC plate; Making also can exchange rheology always in the market purchase and change 12V stabilized voltage supply 4 with the power supply prototype board that one road alternating current 220V enters the mouth, 5 road direct current 12V export; Make modulator-demodular unit prototype board 5 with the special IC plate; Can buy small-sized rectangular parallelepiped industry mobile phone in market is embedded mobile phone 6; Make or buy the miniature antenna 7 of band screen fraud feeder line; Metal case 8 with the thick iron plate making rectangular parallelepiped of 2-3mm; Multiple metering is simulated active electric energy meter 1, intelligent meter data recording prototype board 2, control, processing, storage and clock generator prototype board 3, power supply prototype board 4, modulator-demodular unit prototype board 5, embedded mobile phone 6 is packed in the metal case 8, and arrange also by Fig. 1 can suitable as required conversion, finishes between each module data line then and being connected of power lead then constitutes the miniaturization electric power load management terminal that contains multiple metering simulation active electric energy meter.This terminal is purchased electrical quantity and the embedded mobile phone 6 of process by miniature antenna 7 receptions of band screen fraud feeder line, modulator-demodular unit prototype board 5, control, processing, storage and clock generator prototype board 3, the number of intelligent meter data recording prototype board 2 passes the processing of link, be forwarded to metering electric energy meter, realize purchasing.When using this terminal, adopt the short message (processings) of public wireless communication networks 18 to count to pass or public wired local network is delivered a letter as several, and need not to set up load management dedicated radio frequency.

Claims (1)

1, a kind ofly in power consuming administrative system, carries out long distance meter reading, gives the miniaturization electric power load management terminal that contains multiple metering simulation active electric energy meter of purchasing electricity, anti-electricity-theft usefulness, it is made up of modulation, control, intelligent meter data recording, storage, the meritorious metering of simulation, fault detect, clock generator, power supply basic function module, it is characterized in that:

A, this terminal adopts the short message (processing) of public wireless communication networks (18) to count biography or public wired local network is delivered a letter as number, and need not to set up load management dedicated radio frequency;

B, in this terminal, be provided with multiple metering simulation active electric energy meter (1), this table mainly is made up of the identical embedded meritorious metering module (9) of 1-4 piece, and it is a kind of surface-mounted integrated circuit that is exclusively used in the meritorious electric weight of metering, every meritorious metering prototype board (9) metering one road analog loopback; Be provided with 5 in the side of multiple metering simulation active electric energy meter (1) and penetrate mouth, the sense line that to respond to secondary current sensor (14) and induction primary current sensor (16) inlet that wears long is introduced and to be plugged in the socket that respective mode is intended loop gauging table prototype board in the watchcase, and the sense line that will respond to 100V formula voltage sensor (13) and induction 380V formula voltage sensor (15) wears long and is plugged in the socket of respective mode plan loop gauging table prototype board in the inlet introducing watchcase;

C, multiple metering simulation active electric energy meter (1), intelligent meter data recording prototype board (2), control, processing, storage and clock generator prototype board (3), power supply prototype board (4), modulator-demodular unit prototype board (5), the arrangement position of embedded mobile phone (6) in metal case (8) can suitable as required conversion;

D, this terminal is purchased electrical quantity and process embedded mobile phone (6) by miniature antenna (7) reception of band screen fraud feeder line, modulator-demodular unit prototype board (5), control, processing, storage and clock generator prototype board 3, the number of intelligent meter data recording prototype board (2) passes the processing of link, be forwarded to metering electric energy meter, realize purchasing.

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