CN2524224Y

CN2524224Y - Remote meter checking device

Info

Publication number: CN2524224Y
Application number: CN 02204934
Authority: CN
Inventors: 宣华
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-03-05
Filing date: 2002-03-05
Publication date: 2002-12-04
Anticipated expiration: 2012-03-05

Abstract

The utility model relates to a remote meter checking device which is used in meter, comprising a type drum, a permanent magnet, detecting elements and a logical judgment circuit; wherein the permanent magnet is fixed at the type drum which is arranged at the highest measuring accuracy position of the meter; more than two detecting elements are respectively fixed outside the type drum; the logical judgment circuit is connected with each detecting element through leads; the switching value signal sent by the rotating type drum is input into the input end of the logical judgment circuit by the detecting elements, the logical judgment circuit is capable of eliminating the interference pulse caused by shaking and water hammer, and then the switching value signal is dealt by the computer, at last, achieving the aim of accurate measurement. The utility model is capable of being used as the remote meter checking system of the water meter and the gas meter; and the device also can be used as a checking device.

Description

Gauge meter remote copying detecting device

Technical field

The utility model relates to a kind of gauge meter remote copying detecting device.

Background technology

At present, the work of copying and accepting of water meter and gas meter is just gradually to intelligent transition in building and the sub-district, its method that adopts usually is: front end uses the table tool of belt switch amount output, water meter table tool as shown in Figure 1, the water meter character wheel whenever circles, export a passive switch signal, the switching value signal of kilowatt meter reading-out system remote copying table tool reaches the purpose that data are measured.In this system, switching signal comes from the action of the inner tongue tube of water meter, and the action of tongue tube is to be triggered by the permanent magnet that is fixed on the character wheel, because the water hammer of pipeline vibrations and pipeline, when tongue tube and permanent magnet are in the critical conditions of triggering, can produce a large amount of disturbing pulses, have a strong impact on its measuring accuracy.At present solution to this problem is: a permanent magnet is fixed in to represent water consumption be on 0.01 cubic metre the character wheel, the closure time of tongue tube is prolonged relatively, in order to distinguish disturbing pulse and normal burst, the software program by kilowatt meter reading-out system is again simultaneously further distinguished disturbing pulse and normal burst in the teletransmission process according to pulse width.The defective of this method is: because 0.01 cubic metre of character wheel is not to measure the most accurate character wheel of water consumption, it also is provided with measuring accuracy is 0.0001 cubic metre character wheel, so measuring accuracy is not high; And as user not during water, as shown in Figure 2, when detecting element is in when triggering critical conditions, though the false triggering narrow pulse signal f1 that is produced can discern, false triggering wide pulse signal f2 can't discern after teletransmission, causes mistake to be measured easily.

The utility model content

The purpose of this utility model is: a kind of measuring accuracy height is provided, can overcomes fully in measurement and teletransmission process because of the water meter remote copying pick-up unit that shakes and the water hammer generation is disturbed.

For reaching the technical scheme that this purpose takes be: a kind of gauge meter remote copying detecting device, comprise character wheel Z, permanent magnet E and detecting element G, also comprise logic judging circuit L, permanent magnet E is fixed on the character wheel Z of table tool highest measurement precision position, two above detecting element G are fixed on the outside of character wheel Z, and logic judging circuit L is connected by lead with each detecting element G respectively.

The purpose of this utility model can also be achieved through the following technical solutions:

Logic judging circuit L is constituted by an above trigger D with door Y, each detecting element G links to each other with the input end of corresponding trigger D respectively, the output terminal of each trigger D and last road detecting element G link to each other with input end with door Y, be connected in the intelligent meter data recording computer system with the output terminal of door Y, also be connected in the reset terminal of each trigger D simultaneously.

Compared with prior art the utility model has the advantages that: since represent the full accuracy character wheel on be provided with the multichannel detecting element, the multichannel detecting element is connected with the computer system of intelligent meter data recording by logic judging circuit, can overcome the disturbing pulse of critical detected state, improve the precision that the table tool is measured and teletransmission is copied and accepted.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1 is existing water meter pick-up unit schematic diagram.

Fig. 2 is disturbing pulse synoptic diagram in existing water meter detection and the teletransmission process.

Fig. 3 is the utility model water meter pick-up unit schematic diagram.

Fig. 4 is the utility model remote copying logic determines block diagram.

Fig. 5 influences synoptic diagram for the utility model overcomes disturbing pulse.

Embodiment:

A kind of gauge meter remote copying detecting device that is used for water meter as shown in Figure 3, comprise character wheel Z, permanent magnet E and detecting element G, also comprise logic judging circuit L, a permanent magnet E is fixed on the highest measurement precision position of water meter, promptly on 0.0001 cubic metre of character wheel Z, the outside that two detecting element G1 that are made of tongue tube and G2 are fixed on character wheel Z, its detection angles is θ.

As shown in Figure 4, logic judging circuit L is constituted by a trigger D with door Y, the signal end of detecting element G1 is connected in the input end of trigger D, the signal end I2 of the output terminal of trigger D and detecting element G2 links to each other with the input end with door Y, be connected in the intelligent meter data recording computer system with the output terminal of door Y, also be connected in the reset terminal R of trigger D simultaneously.

As shown in Figure 5, coordinate axis I1, I2 and Q represent respectively detecting element G1, G2 and with the signal output intensity of door Y, coordinate axis T express time, character wheel Z whenever circles, detecting element G1 and detecting element G2 successively respectively send a pulse, during this period, because of might producing, vibrations and water hammer disturb burst pulse f1, f2 or interference broad pulse f3, f4; The trigger pip of detecting element G1 keeps through trigger D, when it with the trigger pip of detecting element G2 with after, export control signal; In the rotation period of character wheel Z, behind any interference burst pulse and the interference broad pulse process logic judging circuit L, can both guarantee that character wheel Z revolution is moving only produces an effective output signal week, so just thoroughly solved because the mistake pulse detection that vibrations and water hammer cause, every cubic metre of water of this table can accurately be exported 1000 pulses, is significantly improved than the measuring accuracy of existing water meter.

Claims

1, a kind of gauge meter remote copying detecting device comprises character wheel Z, permanent magnet E and detecting element G, it is characterized in that: also comprise logic judging circuit L; Permanent magnet E is fixed on the character wheel Z of table tool, and two above detecting element G are fixed on the outside of character wheel Z, and logic judging circuit L is connected by lead with each detecting element G respectively.

2, according to the described a kind of gauge meter remote copying detecting device of claim 1, it is characterized in that: described logic judging circuit L is constituted by an above trigger D with door Y, each detecting element G links to each other with the input end of corresponding trigger D respectively, the output terminal of each trigger D and last road detecting element G link to each other with input end with door Y, be connected in the intelligent meter data recording computer system with the output terminal of door Y, also be connected in the reset terminal of each trigger D simultaneously.