CN1283782A - Remote data transmission counter - Google Patents

Abstract

A metering instrument with remote data transmission is composed of user meter, centralized acquisition board and data acquisition device. The dial of user meter has a read head with sensing element correspondent to the scale marks on dial. Said sensing element is connected to gate circuit on centralized acquisition board. Said data acquistion device consists of control chip, decoder, display, power supply and connector. Its advantages include no need continuous power supply, and no accumulated error.

Description

Remote data transmission counter

The present invention relates to a kind of measurement flow and cross the instrument of instrument flow, especially a kind of gauging instrument with remote indication function.

Water-gas-electricity-meters is the gauging instrument of current each family's indispensability., effort time-consuming owing to check meter to the doorstep and are easy to generate dispute, therefore research " three tables " go out the family, automatically copy and accept significant.At present, existing technical scheme is promptly utilized electricity, magnetic, light all based on the step-by-step counting principle, when the measuring instrument revolution moves one time, produce pulsatile once, pulses switch is become electric signal, draw the open air with cable, add up in the electronic counter, read revolution when checking meter, and convert the number of degrees to.For example, the applying date is that September 24, application number in 1992 are 92110485.5, notification number is the Chinese invention patent " ammeter, water meter, gas meter automatic data acquisition system (ADAS) " of CN1071006A, and the applying date is that the Chinese utility application " discharge self-recording unit in batches " that March 15, application number in 1996 are 96205070.9, notification number is CN2238429Y all is like this.The defective of this class technical scheme is conspicuous: because must active all the time (direct-flow voltage regulation source or battery), can't work when therefore cutting off the power supply.In addition, therefore easily aging because the components and parts non-stop run, cumulative errors is arranged, and be difficult to electronical reading consistently with the mechanical reading adjustment, shortage intuitively compares.

The objective of the invention is to:, propose a kind of active all the time work and assurance electronical reading and corresponding to remote data transmission counter of mechanical reading of need not at shortcoming or the problem that above-mentioned prior art scheme exists.

To achieve these goals, technical scheme of the present invention is: remote data transmission counter comprises subscriber's meter, concentrates collection plate, also comprise data acquisition unit, be fixed with reading terminal near the dial plate of described subscriber's meter, this reading terminal corresponding tables dial scale stationkeeping has sensing element, be provided with near-end circuit and plug receptacle in the data acquisition board, described sensing element is connected with near-end circuit in the concentrated collection plate by cable, and described near-end circuit is mainly formed by light commutation circuit, gating circuit, transmission circuit serial connection.Data acquisition unit is made of remote circuitry and connector, wherein the plug receptacle of connector and data acquisition board matches, described remote circuitry mainly is made up of receiving circuit, gating decoding scheme, display circuit and power supply, and wherein receiving circuit, gating decoding scheme, display circuit are connected in series mutually.

At ordinary times, concentrate collection plate and data acquisition unit not to work in the remote data transmission counter of the present invention, have only subscriber's meter as existing gauging table, to rotate counting, therefore need not power supply.When needs read the subscriber's meter reading, the person of checking meter needn't be registered one's residence and observe the dial plate reading, as long as concentrate collection plate to operate the connector insertion of data acquisition unit.At this moment, the power supply in the data acquisition unit makes it convert the reading on the dial plate to decoding scheme that electric signal is passed to data acquisition unit by concentrating the sensing element power supply of collection plate cable in the subscriber's meter of gating, passes to display circuit again and shows reading.

This shows, data remote instrument of the present invention does not change the measurement instrument original structure substantially, need not to power continuously to equipment, easy to implement, can accomplish that reading shows consistent with dial plate, do not have cumulative errors, greatly improved check meter work efficiency and accuracy, will produce social benefit and economic benefit widely after applying.

Below in conjunction with accompanying drawing technical scheme of the present invention is described further.

Fig. 1 is the user mode synoptic diagram of one embodiment of the invention.

Fig. 2 is Fig. 1 embodiment subscriber's meter structural representation.

Fig. 3 is the index dial structure synoptic diagram among Fig. 1 embodiment.

Fig. 4 is the circuit diagram of Fig. 1 embodiment.

Fig. 5 is the index dial structure synoptic diagram among another embodiment.

Shown in Figure 1 is a kind of remote data transmission counter of measuring water consumption, by subscriber'smeter 1,concentrate collection plate 2,data acquisition unit 3 is formed, wherein subscriber'smeter 1 is as Fig. 2, shown in Figure 3, pointer 1-1 fixes, the dial plate 1-2 and the output shaft 1-3 of metering counting mechanism are coaxial fixing, near dial plate 1-2, be fixed with pincerlike reading terminal 1-4, this reading terminal upper grip head is fixed with infrared electro crossover connection 1-5, lower pliers head is fixed with infraluminescence pipe 1-6, the corresponding reading " 1; 2; 3; 4 of the annulus of dial plate 1-2 between last lower pliers head " and " 8; 9 " the ring arc light tight, corresponding " 5; 6; 7 " and the ring arc printing opacity of " 0 ", like this at fixed pointers 1-1 during to " 0 ", as long as fix four reading terminals (correspondence " 4; 5; 6; 7 among the figure at four continuous ring arcs " the position), can be when checking meter, rubescent outer only the receipts for infrared electro crossover connection 1-5 sense of infraluminescence pipe 1-6 institute realizes reading all decimal numeral operations with binary code, and it is as follows that it specifically deciphers corresponding relation:

Binary code	?0111	?1111	?1110	?1100	?1000	?0001	?0011	?0110	?1101	?1011
											Decimal number	????0	????1	????2	????3	????4	????5	????6	????7	????8	????9

Circuit shown in Figure 4 is made up of remote circuitry two parts in near-end circuit in the data acquisition board and the data acquisition unit, wherein the near-end circuit mainly is in series by light commutation circuit, voltage stabilizing amplifying circuit, gating circuit, transmission circuit, four CS200 chips constitute light commutation circuit, the LM339 chip constitutes voltage stabilizing amplifying circuit, two 74LS151 and a slice 74LS157, a slice 74LS161 and constitutes gating circuit, and Max232 chip and peripheral cell constitute the transmission circuit serial connection and form.Remote circuitry is mainly formed by receiving circuit, gating decoding scheme, display circuit and power supply with for each chip provides synchronous clock circuit, receiving circuit, gating decoding scheme, display circuit are connected in series mutually, Max232 and peripheral cell constitute receiving circuit, the gating decoding scheme is formed by a slice 74LS161,74LS48,75LS148, two 74LS154,75LS00, three 74LS74 chip overlap joints, the C501G chip of LCD constitutes display circuit, and 555 chips and peripheral cell thereof constitute clock circuit.

At ordinary times, concentratedcollection plate 2 anddata acquisition unit 3 in this remote data transmission counter are not worked, and have only subscriber'smeter 1 to rotate counting (different is that pointer 1-1 does not change, and dial plate 1-2 rotates) as the light water scale, therefore need not power supply.When needs read the reading of subscriber'smeter 1, the person of checking meter was as long asconcentrate collection plate 2 to operate the connector insertion of data acquisition unit 3.At this moment, power supply in thedata acquisition unit 3 is by concentrating four group infrared electro crossover connection 1-5 and the infraluminescence pipe 1-6 power supply ofcollection plate 2 cables in the subscriber's meter of gating, make it reading on dial plate 1-2 be amplified and convert the scale-of-two electric signal to pass todata acquisition unit 2, after deciphering by the concrete reading of liquid crystal display.

Like this, the person of checking meter needn't be registered one's residence and can concentrate the work of checking meter of finishing, and is not only convenient but also accurate.And the circuit volume of water meter end is little, cost is low, manufacturing is simple, and suitable batch production, large tracts of land are promoted.

Embodiment two is with the difference of figure one embodiment: the corresponding reading of the annulus of dial plate 1-2 between last lower pliers head " 1; 3; 5 " and " 7; 8 " the ring arc light tight, corresponding " 2; 3; 6; 9 " and the ring arc printing opacity of " 0 ", like this at fixed pointers 1-1 during to " 0 ", as long as in four alternate four reading terminals of ring arc stationkeeping (correspondence " 2; 4; 6; 8 among the figure " digit position), can be when checking meter, rubescent outer only the receipts for infrared electro crossover connection 1-5 sense of infraluminescence pipe 1-6 institute realizes reading all decimal numeral operations with binary code, and it is as follows that it specifically deciphers corresponding relation:

Binary code	?0000	?1111	?0001	?1110	?0010	?1101	?0100	?1011	?1000	?0111
											Decimal number	????0	????1	????2	????3	????4	????5	????6	????7	????8	????9

In addition to the implementation, the present invention also has many other embodiments, and for example sensing element adopts magnetic induction part, and perhaps the light penetrating ring arc of dial plate and light tight ring arc are otherwise arranged or the like, and suchlike equivalents is protection scope of the present invention.

Claims (5)

1. remote data transmission counter, comprise subscriber's meter, concentrate collection plate, it is characterized in that: also comprise data acquisition unit, be fixed with reading terminal near the dial plate of described subscriber's meter, this reading terminal corresponding tables dial scale stationkeeping has sensing element, be provided with near-end circuit and plug receptacle in the data acquisition board, described sensing element is connected with near-end circuit in the concentrated collection plate by cable, and described near-end circuit is mainly formed by light commutation circuit, gating circuit, transmission circuit serial connection.Data acquisition unit is made of remote circuitry and connector, wherein the plug receptacle of connector and data acquisition board matches, described remote circuitry mainly is made up of receiving circuit, gating decoding scheme, display circuit and power supply, and wherein receiving circuit, gating decoding scheme, display circuit are connected in series mutually.

2. remote data transmission counter according to claim 1 is characterized in that: described sensing element is infrared electro crossover connection and infraluminescence pipe.

3. remote data transmission counter according to claim 1, it is characterized in that: the ring arc of the corresponding reading of the annulus of described dial plate " 1,2,3,4 " and " 8,9 " is light tight, the ring arc printing opacity of corresponding " 5,6,7 " and " 0 " is at four reading terminals of four continuous loop arc stationkeeping of corresponding dial plate.

4. remote data transmission counter according to claim 1, it is characterized in that: the ring arc of the corresponding reading of the annulus of described dial plate " 1,3,5 " and " 7,8 " is light tight, the ring arc printing opacity of corresponding " 2,3,6,9 " and " 0 " is at four reading terminals of four alternate ring arc stationkeeping of corresponding dial plate.

5. remote data transmission counter according to claim 1 is characterized in that: described remote circuitry also contains promising each chip provides synchronous clock circuit.

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