CN2484549Y

CN2484549Y - Civil remote-transmitted flow meter of anti-circuit-break/short circuit, anti-power-off and anti-circuit-fault

Info

Publication number: CN2484549Y
Application number: CN 01206095
Authority: CN
Inventors: 赵育恒
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-04-27
Filing date: 2001-04-27
Publication date: 2002-04-03
Anticipated expiration: 2011-04-27

Abstract

The utility model discloses a civil remote-transmitted flow meter of anti-circuit-break/short circuit, anti-power-off and anti-circuit-fault (mainly relates to water and gas meters), belonging to a device measuring the flow of fluid passing through the meter continuously. The micro-power consumption count and storing circuit is powered by a small capacity and long life span battery arranged in the meter, which can realize long-term and continuous remote transmitting of measured, stored and accumulated data. Under no circumstances that the accumulated data in the utility model can get lost due to such accidents as circuit-break/short circuit, power-off and circuit-fault of communication circuit. Compared with prior art, the reliability of automatic meter-reading system and simplicity of maintenance and management are greatly improved.

Description

The civilian teletransmission flowmeter of anti-opening circuit/short circuit, anti-power failure, reactive circuit fault

The utility model relates to the device of the flow of measuring the fluid that passes through instrument continuously, the flowmeter that particularly has the electronic long-distance transmission function.

Electronic long-distance transmission water, gas meter are can send and water, the gas meter of teletransmission and water, the proportional electric impulse signal of gas use amount, are the metering base tables of Automatic meter reading system and IC-card prepayment meter.Usually, electronic long-distance transmission measuring instrument " be that magneto-dependent sensor and magnet (or light sensor and optical signal source) composition are set in traditional mechanical type table.Its effect in kilowatt meter reading-out system is: water, gas use amount are transformed into number electric impulse signal proportional with it, synchronously output teletransmission in real time.This signal, finally arrives terminal and finishes the billing function of checking meter again through concentrator through the collector of communication line teletransmission to Automatic meter reading system.

Existing electronic long-distance transmission measuring instrument just as the primary instrument that produces the real time measure pulse, must just can not omitted continuous data by the synchronous real-time counting of the collector that plays the secondary instrument effect, the storage of off-balancesheet on the home market., in case following situation takes place: (1) electronic long-distance transmission measuring instrument communication line " opens circuit " or " short circuit "; (2) collector counting memory circuit breaks down; (3) system's power supply has a power failure more than 48 hours; The just inevitable continuous data of omitting.This is the fatal problem of existing Automatic meter reading system reliability, makes troubles not only for design, manufacturing, the maintenance and management of system and the raising of financial cost, has more hindered the development in Automatic meter reading system market.At the problems referred to above, aspect Automatic meter reading system, can only take some passive measures, as: 1. " disconnected/short circuit " checking circuit is set, finds that the back is in time handled to repair, but go wrong to before repairing during in continuous data lose unavoidably; 2. to collector counting memory circuit standby rechargeable battery is set, when mains failure, can also keep operate as normal 48 hours, but the power failure of longer time will makes the energy shortage of rechargeable battery lose water, gas continuous data to keep counting circuit work; It is then powerless to break down for collector counting memory circuit, all can only remove to check the reading of the mechanical counter of instrument at last again, serve as according to the data of giving loss for change with it, brings a lot of troubles to administering and maintaining.

The purpose of this utility model is: for improving the reliability of Automatic meter reading system, a kind of electronic long-distance transmission measuring instrument of uninterruptedly metrical pulse being counted, being stored all the year round is provided, any fault takes place in gauge external, can not omit continuous data, resist the infringement of above-mentioned three class faults effectively, so be called: the civilian remote gauge table of anti-opening circuit/short circuit, anti-power failure, reactive circuit fault.

Technical solution of the present utility model is: the sensor of (1) not power consumption is set up in the inner space at traditional mechanical count formula measuring instrument; (2) little power consumption counter register circuit; (3) the special-purpose long-life batteries of counter register circuit; (4), be integrated in data output circuit and LCD display circuit in the same dedicated IC chip with counter register.Wherein, be used for setting up in the space between gear set 12 in the gearcase 11 of traditional mechanical count formula dry-type meter and the gearcase bottom of water meter, be used for setting up in the air chamber metal shell and the space between the counter transparent plastic shell of traditional mechanical count formula gas meter of gas meter.

This measuring instrument is different from the conditional electronic remote gauge table that can only produce the real time measure pulse, and powered battery continues counting memory function structure all the year round in the table because of it has increased, output no longer be the real time measure pulse, but cummulative metering data.Thereby primary instrument and secondary instrument function are concentrated on measuring instrument inside, can irrespectively independently finish cummulative metering work with the outside, how long battery life has, and how long the time of continuous firing just has.Just because of this, during continuous firing in, no matter what's wrong in the measuring instrument outside, can not omit continuous data, and the purpose of this utility model is reached.

The utility model can further specify by following examples.Figure 1 shows that the concrete composition frame chart of technical solution; Fig. 2, shown in Figure 3ly be respectively electronic remote transmission water meter (or gas meter) and the organigram this patent relevant portion.Among the figure, 1 is long-life batteries, and 2 is rotor wheel magnet, 3 is the sensor of not power consumption, and 4 is little power consumption counter register, and 5 are the command input end of checking meter, 6 is data output end, and 7 is power supply, and 8 is ground wire, 9 is watermeter shell, 10 is impeller box, and 11 is gearcase, and 12 is gear set, 13 is gas meter air chamber shell, and 14 is gas meter counter outer cover.Although the object of the two metering is different, relative configurations is basic identical.The sensor 3 of setting up in the gear set 12 and the space between gearcase 11 bottoms of traditional mechanical count formula dry-type meter (or setting up in the air chamber metal shell and the space between the counter shell at traditional mechanical count formula gas meter) is being installed under the action of a magnetic field of the magnet 2 on certain rotor wheel, water (or gas) the consumption count pulse that produces is imported little power consumption counter register 4 stored counts, these stored counts data just are stored in this counter register at ordinary times, long-life batteries 1 is counter register 4 power supplies, as long as 1 life-span of battery, the work of counter register 4 just can not ended not to the greatest extent; When needs were checked meter, at first, the order of checking meter of being sent by kilowatt meter reading-out system entered the order input port 5 of checking meter, then, data in the counter register 4 from data output 6 teletransmissions output, are converted into water (or gas) consumption at the computer data processing terminal through data output interface circuit.

In addition,, reduce it and take up room and cost, can also take further to reduce the measure of battery power consumption in order to use the battery of small size and little electricity capacity as far as possible---cut apart power supply, that is: battery 1 only is used for counter register 4 power supplies; Other circuit (as: data output interface circuit, LCD data display circuit etc.) that is integrated in it in same chip is all powered by the kilowatt meter reading-out system of off-balancesheet.And can not power when not checking meter, the off-balancesheet total system also can quit work fully, just just powers when needs are checked meter, and has both saved electricity consumption, can remove from again at ordinary times and safeguarding.

In order to realize little power consumption of circuit, be necessary above-mentioned all circuit are integrated in a slice dedicated IC chip.Average power consumption is not more than 4 μ A (or 10 μ A) for little power consumption counter register, uses the long-life lithium battery power supply of an electricity capacity 400mAh (or 1000mAh), just can continuous firing 10 years.(calculated example 400mAh/4 μ A/24h/day/365day/year ≈ 11.4year).

During this period, if following fault takes place in off-balancesheet portion: (1) communication line opens circuit or short circuit; (2) collector counting memory circuit fault; (3) system's power failure is more than 48 hours; The operation of just checking meter that temporarily can't carry out, no matter trouble duration is how long, and the stored counts work in the table can not stop, and the stored counts data can not omitted.Like this, can fix a breakdown calmly to no time limit, both improved the reliability of Automatic meter reading system, made things convenient for maintenance and management again guaranteeing to measure under the prerequisite that continuation reliably carries out.

Claims

1, the civilian teletransmission flowmeter of a kind of anti-opening circuit/short circuit, anti-power failure, reactive circuit fault comprises mechanical count formula gas meter or dry-type meter, it is characterized in that, is provided with sensor (3) in the table; Counter register circuit (4); Counter register reserve battery (1).

2, the civilian teletransmission flowmeter of anti-opening circuit according to claim 1/short circuit, anti-power failure, reactive circuit fault is characterized in that described sensor (3) is not power consumption sensor.

3, the civilian teletransmission flowmeter of anti-opening circuit according to claim 1 and 2/short circuit, anti-power failure, reactive circuit fault is characterized in that described counter register circuit (4) is the counter register circuit of little power consumption.

4, the civilian teletransmission flowmeter of anti-opening circuit according to claim 1 and 2/short circuit, anti-power failure, reactive circuit fault is characterized in that it also contains the data output end (6) of data output circuit.

5, the civilian teletransmission flowmeter of anti-opening circuit according to claim 3/short circuit, anti-power failure, reactive circuit fault is characterized in that it also contains the data output end (6) of data output circuit.

6, the civilian teletransmission flowmeter of anti-opening circuit according to claim 4/short circuit, anti-power failure, reactive circuit fault, it is characterized in that described counter register circuit (4) all is integrated in the same special circuit chip with data output circuit, data display circuit.

7, the civilian teletransmission flowmeter of anti-opening circuit according to claim 5/short circuit, anti-power failure, reactive circuit fault, it is characterized in that described counter register circuit (4) all is integrated in the same special circuit chip with data output circuit, data display circuit.

8, the civilian teletransmission flowmeter of anti-opening circuit according to claim 6/short circuit, anti-power failure, reactive circuit fault, it is characterized in that described counter register circuit (4) all is integrated in the same special circuit chip with data output circuit, data display circuit.

9, the civilian teletransmission flowmeter of anti-opening circuit according to claim 1/short circuit, anti-power failure, reactive circuit fault is characterized in that described reserve battery (1) only is connected with counter register circuit (4).