CN104655218A - Safety cut-out type intelligent gas meter with self learning function - Google Patents
Safety cut-out type intelligent gas meter with self learning function Download PDFInfo
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- CN104655218A CN104655218A CN201510055313.1A CN201510055313A CN104655218A CN 104655218 A CN104655218 A CN 104655218A CN 201510055313 A CN201510055313 A CN 201510055313A CN 104655218 A CN104655218 A CN 104655218A
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Abstract
The invention discloses a safety cut-out type intelligent gas meter with a self learning function. The safety cut-out type intelligent gas meter comprises a pulse sampling circuit, a master control CPU (Central Processing Unit), a storage for storing recent accumulative gas consumption of assigned number of days, a buffer and a valve control circuit, wherein the pulse sampling circuit is used for sampling the gas consumption of the gas meter, the output end of the pulse sampling circuit is connected with the master control CPU, the master control CPU is respectively and bidirectionally connected with the storage and the buffer, and a disconnection control signal output end of the master control CPU is connected with the valve control circuit; the master control CPU is used for removing the accumulative gas consumption of an earliest day when the accumulation of current-day accumulative gas consumption is completed and data of the storage exceed the assigned number of days, the current-day gas consumption can be stored in the storage, and the maximum gas consumption in the storage can be refreshed. According to the safety cut-out type intelligent gas meter with the self learning function, provided by the invention, the problem of gas safety existing in a current safety cut-out type gas meter is solved, and the gas safety of a user is increased.
Description
Technical field
The present invention relates to a kind of safety cut-off type intelligent gas meter with self-learning function.
Background technology
Most safety cut-off type gas meter, flow meter mainly contains two kinds of modes: mode one detects gas leakage by external alarm, mode two is over-current detection mode, gas meter, flow meter in use, mode one only has when gas leakage and gas concentration in alarm detection space reaches the concentration value that external alarm can detect time, fuel gas alarm just can detect gas leakage, and send gas leakage alarm signal to gas meter, flow meter, carry out safety cut-off by gas meter, flow meter and control; Mode two only has when gas meter, flow meter detects that current gas use amount is greater than the maximum airshed of setting, and gas meter, flow meter just carries out safety cut-off control.
Safety cut-off control is carried out by above two kinds of modes, although ensure that to a certain extent and use gas safety, but mode one is less or open with gas environment space in gas leakage amount, in draughty situation, gas concentration can not reach least concentration that fuel gas alarm detects when requiring fuel gas alarm effectively gas leakage can not be detected; Mode two is in use gas process, and after gas leakage, gas flow increases, but when not exceeding the maximum gas consumption of setting, gas meter, flow meter can not be greater than by detection gas flow the mode setting maximum gas consumption and carry out safety cut-off; Therefore gas safety cut-off control is carried out by above two kinds of modes; Although improve the security that user uses combustion gas to a certain extent, yet there is certain combustion gas use safety risk.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of safety cut-off type intelligent gas meter with self-learning function, what solve the existence of current safety cut-off type gas meter, flow meter uses gas safety problem, improves the security of user's gas.
The object of the invention is to be achieved through the following technical solutions: a kind of safety cut-off type intelligent gas meter with self-learning function, it comprise pulse sampling circuit, main control MCU, add up for storing nearest given number of days gas consumption storer, for storing the buffer of gas consumption on same day in accumulative process, valve controling circuit and air valve; The described gas consumption of pulse sampling circuit input end to gas meter, flow meter is sampled, the output terminal of pulse sampling circuit is connected with main control MCU, main control MCU is bi-directionally connected with storer and buffer respectively, the open circuit control signal output terminal of main control MCU is connected with valve controling circuit, the output terminal of valve controling circuit is connected with air valve, and combustion gas is exported by combustion gas delivery outlet after entering air valve by combustion gas input port; Described main control MCU the same day add up totaling of gas consumption and memory data exceedes nearest given number of days time, the accumulative gas consumption of one day is the earliest removed from storer, by the same day gas consumption stored in storer, and compare to take large values with the maximum gas consumption in storer and upgrade maximum gas consumption.
Described a kind of safety cut-off type intelligent gas meter with self-learning function also comprises an artificial reset button, and the output terminal of described manual reset button is connected with valve controling circuit.
Described nearest given number of days is 30 days.
Described a kind of safety cut-off type intelligent gas meter with self-learning function also comprises a wireless module, and the input end of described wireless module is connected with main control MCU, for sending online designation data bag at official hour to total management system.
Described main control MCU is single-chip microcomputer MSP430.
Pulse sampling circuit is per second delivers to main control MCU by the gas consumption collected, by main control MCU, gas consumption and timing are added up, timing is taked to make for 24 hours, from 0 o'clock accumulative same day gas consumption, when timing result arrives again at 0, automatically will add up gas consumption the same day and be sent to storer and store, and by the same day gas consumption and the maximum gas consumption of system storage compare, take large values and upgrade maximum gas consumption, and restart the accumulative new gas consumption with gas day.
With in gas process, main control MCU can compare the maximum gas consumption adding up gas consumption and storer storage the same day according to certain hour interval, added up gas consumption the same day when exceeding the maximum gas consumption stored in storer, main control MCU can launch an open circuit control signal to valve controling circuit, by the air valve safety cut-off of valve controling circuit by gas meter, flow meter, gas meter, flow meter carries out after safety detection passes through, use artificial reset button to be opened by gas meter, flow meter air valve passage by valve controling circuit, continuation gas also adds up gas consumption on the same day.
Storer can store the gas consumption data in 30 days, after 30 days, is automatically removed by the accumulative gas consumption of a day the earliest, by the accumulative gas consumption of up-to-date a day stored in, solve the impact that maximum gas consumption brings because of seasonal variations.
The invention has the beneficial effects as follows: (1) automatically upgrades maximum gas consumption function and solves user's using in gas process in reality, and dynamic does not determine a difficult problem for maximum gas consumption; (2) when gas consumption exceeds the maximum gas consumption in memory block safety cut-off function solve gas meter, flow meter cannot be timely, the problem accurately cut off, improves user and uses gas safety; (3) gas meter, flow meter memory block has nearest given number of days, solves the impact that maximum gas consumption brings because of seasonal variations, finally guarantees user's exception gas and safety cut-off, improves user and uses gas safety; (4) after official hour reaches, open wireless module also sends online designation data bag to total management system, total management system knows the online situation of terminal device with this, compare the mode detected by total management system timing, terminal device need not be made always online, thus effectively reduce the power consumption of terminal device.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, there is a safety cut-off type intelligent gas meter for self-learning function, it comprise pulse sampling circuit, main control MCU, add up for storing nearest given number of days gas consumption storer, for storing the buffer of gas consumption on same day in accumulative process, valve controling circuit and air valve; The described gas consumption of pulse sampling circuit input end to gas meter, flow meter is sampled, the output terminal of pulse sampling circuit is connected with main control MCU, main control MCU is bi-directionally connected with storer and buffer respectively, the open circuit control signal output terminal of main control MCU is connected with valve controling circuit, the output terminal of valve controling circuit is connected with air valve, and combustion gas is exported by combustion gas delivery outlet after entering air valve by combustion gas input port; Described main control MCU the same day add up totaling of gas consumption and memory data exceedes nearest given number of days time, the accumulative gas consumption of one day is the earliest removed from storer, by the same day gas consumption stored in storer, and compare to take large values with the maximum gas consumption in storer and upgrade maximum gas consumption.
Described a kind of safety cut-off type intelligent gas meter with self-learning function also comprises an artificial reset button, and the output terminal of described manual reset button is connected with valve controling circuit.
Described nearest given number of days is 30 days.
Described a kind of safety cut-off type intelligent gas meter with self-learning function also comprises a wireless module, and the input end of described wireless module is connected with main control MCU, for sending online designation data bag at official hour to total management system.
Described main control MCU is single-chip microcomputer MSP430.
Pulse sampling circuit is per second delivers to main control MCU by the gas consumption collected, by main control MCU, gas consumption and timing are added up, timing is taked to make for 24 hours, from 0 o'clock accumulative same day gas consumption, when timing result arrives again at 0, automatically will add up gas consumption the same day and be sent to storer and store, and by the same day gas consumption and the maximum gas consumption of system storage compare, take large values and upgrade maximum gas consumption, and restart the accumulative new gas consumption with gas day.
With in gas process, main control MCU can compare the maximum gas consumption adding up gas consumption and storer storage the same day according to certain hour interval, added up gas consumption the same day when exceeding the maximum gas consumption stored in storer, main control MCU can launch an open circuit control signal to valve controling circuit, by the air valve safety cut-off of valve controling circuit by gas meter, flow meter, gas meter, flow meter carries out after safety monitoring passes through, use artificial reset button to be opened by gas meter, flow meter air valve passage by valve controling circuit, continuation gas also adds up gas consumption on the same day.
Storer can store the gas consumption data in 30 days, after 30 days, is automatically removed by the accumulative gas consumption of a day the earliest, by the accumulative gas consumption of up-to-date a day stored in, solve the impact that maximum gas consumption brings because of seasonal variations.
Claims (4)
1. there is a safety cut-off type intelligent gas meter for self-learning function, it is characterized in that: it comprise pulse sampling circuit, main control MCU, add up for storing nearest given number of days gas consumption storer, for storing the buffer of gas consumption on same day in accumulative process, valve controling circuit and air valve; The described gas consumption of pulse sampling circuit input end to gas meter, flow meter is sampled, the output terminal of pulse sampling circuit is connected with main control MCU, main control MCU is bi-directionally connected with storer and buffer respectively, the open circuit control signal output terminal of main control MCU is connected with valve controling circuit, the output terminal of valve controling circuit is connected with air valve, and combustion gas is exported by combustion gas delivery outlet after entering air valve by combustion gas input port; Described main control MCU the same day add up totaling of gas consumption and memory data exceedes nearest given number of days time, the accumulative gas consumption of one day is the earliest removed from storer, by the same day gas consumption stored in storer, and compare to take large values with the maximum gas consumption in storer and upgrade maximum gas consumption.
2. a kind of safety cut-off type intelligent gas meter with self-learning function according to claim 1, it is characterized in that: it also comprises an artificial reset button, the output terminal of described manual reset button is connected with valve controling circuit.
3. a kind of safety cut-off type intelligent gas meter with self-learning function according to claim 1, is characterized in that: described nearest given number of days is 30 days.
4. a kind of safety cut-off type intelligent gas meter with self-learning function according to claim 1, is characterized in that: it also comprises a wireless module, and the input end of described wireless module is connected with main control MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510055313.1A CN104655218A (en) | 2015-02-03 | 2015-02-03 | Safety cut-out type intelligent gas meter with self learning function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510055313.1A CN104655218A (en) | 2015-02-03 | 2015-02-03 | Safety cut-out type intelligent gas meter with self learning function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781198A (en) * | 2018-12-07 | 2019-05-21 | 金卡智能集团股份有限公司 | A method of for detecting the uncontrolled flow of measuring instrument |
| CN111238589A (en) * | 2020-01-20 | 2020-06-05 | 广州燃气集团有限公司 | Intelligent gas meter, system and method capable of monitoring household gas leakage state |
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| CN1052936A (en) * | 1989-12-28 | 1991-07-10 | 松下电器产业株式会社 | Gas shutoff apparatus |
| WO2008139242A2 (en) * | 2006-05-25 | 2008-11-20 | Alfa Centauri S.P.A. | A method and an apparatus for operating an electromagnetic valve associated to a gas meter |
| CN201803753U (en) * | 2010-07-12 | 2011-04-20 | 大庆油田中庆燃气控股有限责任公司 | Gas meter capable of issuing alarm and cutting off under flow rate abnormity |
| CN102143071A (en) * | 2011-03-09 | 2011-08-03 | 中兴通讯股份有限公司 | Method and device for determining network flow as well as network equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109781198A (en) * | 2018-12-07 | 2019-05-21 | 金卡智能集团股份有限公司 | A method of for detecting the uncontrolled flow of measuring instrument |
| CN109781198B (en) * | 2018-12-07 | 2023-10-20 | 金卡智能集团股份有限公司 | Method for detecting uncontrolled flow of metering instrument |
| CN111238589A (en) * | 2020-01-20 | 2020-06-05 | 广州燃气集团有限公司 | Intelligent gas meter, system and method capable of monitoring household gas leakage state |
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Address after: 610199 Longquanyi, Sichuan Province Industrial Park licensing Applicant after: Chengdu Qinchuan networking Polytron Technologies Inc Address before: 610199 Longquanyi, Sichuan Province Industrial Park licensing Applicant before: Chengdu Taichuan Technology Development Co., Ltd. |
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Application publication date: 20150527 |
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