WO2022205403A1 - 一种可监控家用燃气泄漏状态的智能燃气表、系统及方法 - Google Patents

一种可监控家用燃气泄漏状态的智能燃气表、系统及方法 Download PDF

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Publication number
WO2022205403A1
WO2022205403A1 PCT/CN2021/085186 CN2021085186W WO2022205403A1 WO 2022205403 A1 WO2022205403 A1 WO 2022205403A1 CN 2021085186 W CN2021085186 W CN 2021085186W WO 2022205403 A1 WO2022205403 A1 WO 2022205403A1
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Prior art keywords
gas
leakage
signal
gas flow
monitoring
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PCT/CN2021/085186
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English (en)
French (fr)
Inventor
许俊城
施峰
陈丹
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广州燃气集团有限公司
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Priority to PCT/CN2021/085186 priority Critical patent/WO2022205403A1/zh
Publication of WO2022205403A1 publication Critical patent/WO2022205403A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/06—Indicating or recording devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
    • G08B21/16—Combustible gas alarms

Definitions

  • the invention relates to the technical field of gas safety, in particular to an intelligent gas meter, a system and a method capable of monitoring the leakage state of household gas.
  • the purpose of the present invention is to solve one of the technical problems existing in the prior art at least to a certain extent.
  • the embodiments of the present invention provide a smart gas meter, system and method capable of monitoring the state of domestic gas leakage, which can reduce the cost of monitoring gas leakage, and at the same time more effectively make emergency responses to different gas leakage severities, thereby ensuring that User's life and property safety.
  • an embodiment of the present invention provides a smart gas meter capable of monitoring the leakage state of household gas, including:
  • Base table used to measure the volume data of the incoming gas
  • a pulse module configured to output a pulse signal when the accumulated value of the volume data reaches a predetermined target
  • the controller module is used for receiving the pulse signals, recording the time interval between the preset number of the pulse signals, judging whether gas leakage occurs according to the time interval, and outputting gas when it is judged that gas leakage occurs leak signal;
  • a communication module for sending the gas leakage signal
  • the valve control module is used to control the in and out of gas.
  • an embodiment of the present invention provides a system that can monitor the state of domestic gas leakage, including:
  • the described smart gas meter capable of monitoring the state of domestic gas leakage is used for judging whether gas leakage occurs according to the time interval between a preset number of pulse signals;
  • the remote background is configured to receive the gas leakage signal sent by the gas meter, and send corresponding information to users and/or maintenance personnel according to the gas leakage signal.
  • an embodiment of the present invention provides a method for monitoring the state of domestic gas leakage, including the following steps:
  • the system is controlled to execute an alarm and/or gas shut-off procedure.
  • the step of analyzing the gas leakage state according to the flow information specifically includes:
  • gas leakage level model is established through the following steps:
  • the gas leakage level is demarcated as overcurrent leakage.
  • the establishment of the gas leakage level model further includes the following steps:
  • the micro leakage level is classified again according to the safety risk of gas leakage.
  • step of controlling the system to execute an alarm and/or gas shut-off procedure includes the following steps:
  • the controller module of the gas meter When the controller module of the gas meter outputs a small gas leakage signal, it will send a prompt signal to the user and/or maintenance personnel through the remote background.
  • step of controlling the system to execute an alarm and/or gas shut-off procedure includes the following steps:
  • controller module of the gas meter When the controller module of the gas meter outputs a gas warning leakage signal, send the warning signal to the user and/or maintenance personnel through the remote background;
  • step of controlling the system to execute an alarm and/or gas shut-off procedure includes the following steps:
  • a control signal is sent to the gas meter when the gas shut-off request signal passes or a feedback signal is not received within a preset time threshold.
  • step of controlling the system to execute an alarm and/or gas shut-off procedure includes the following steps:
  • controller module of the gas meter When the controller module of the gas meter outputs the gas over-current leakage signal, it sends a control signal to the gas meter through the remote background to control the valve control module to perform the gas shut-off action;
  • the embodiment of the present invention is improved by improving the existing gas meter , so that it can independently complete the task of monitoring gas leakage, and at the same time, the system and method in the embodiment of the present invention can reduce the cost of monitoring gas leakage, and more effectively make emergency responses to different gas leakage severities, thereby ensuring the life and property of users. Safety.
  • FIG. 1 is a schematic block diagram of a specific embodiment of a smart gas meter capable of monitoring the leakage state of household gas according to the present invention
  • FIG. 2 is a schematic diagram of a specific embodiment of a system capable of monitoring the leakage state of household gas according to the present invention
  • FIG. 3 is a schematic flowchart of a specific embodiment of a method for monitoring the leakage state of household gas according to the present invention
  • FIG. 4 is a schematic diagram of a gas leakage level model of a specific embodiment of a method for monitoring household gas leakage status according to the present invention
  • FIG. 5 is a schematic diagram of a flow threshold value of a specific embodiment of a method for monitoring the leakage state of household gas according to the present invention.
  • FIG. 6 is a schematic diagram of trace leakage according to a specific embodiment of a method for monitoring the leakage state of household gas according to the present invention.
  • FIG. 7 is a schematic diagram of an early warning leakage according to a specific embodiment of a method for monitoring the leakage state of household gas according to the present invention.
  • FIG. 8 is a schematic diagram of overcurrent leakage according to a specific embodiment of a method for monitoring the leakage state of household gas according to the present invention.
  • an embodiment of the present invention provides a smart gas meter that can monitor the leakage state of household gas, including:
  • the base table 101 is used to measure the volume data of the incoming gas
  • the pulse module 102 is configured to output a pulse signal when the accumulated value of the volume data reaches a predetermined target
  • the controller module 103 is configured to receive the pulse signals, record the time interval between the preset number of the pulse signals, determine whether gas leakage occurs according to the time interval, and output when it is determined that gas leakage occurs Gas leak signal;
  • a communication module 104 configured to send the gas leakage signal
  • the valve control module 105 is used to control the opening and closing of the gas.
  • a smart gas meter that can monitor the leakage state of household gas.
  • the gas meter is mainly used in the household of gas users.
  • the main function of the gas meter in the prior art is to complete the collection and billing of gas flow data. And tasks such as closing the gas access channel when the bill is in arrears.
  • the function of the existing household gas meter is further optimized and expanded, so that it can complete the task of monitoring the leakage state of household gas without relying on an external gas detector.
  • the specific principle is as follows: the base meter 101 of the gas meter can collect the volume data of the incoming gas in real time.
  • the volume of the exhaust gas can be determined by the action of the bellows film in the gas meter, and this volume corresponds to the reading unit of the gas meter roller counter.
  • the rotation of the roller counter of the base table 101 corresponds to the pulse module 102 , for example, the pulse module 102 outputs one pulse every time the roller counter rotates once.
  • the setting method of the predetermined target of the output pulse from the pulse module 102 can be realized by an integer multiple of the fixed volume V, that is, when the accumulated value of the volume data reaches V, 2V, 3V...nV (n is an integer), the pulse signal is output;
  • a fixed volume V can be used as the predetermined target.
  • the cumulative value of the volume data reaches V, a pulse signal is output and the cumulative value is cleared.
  • the cumulative value referred to here is the cumulative value recorded by the pulse module. , not the measurement data of the base meter is cleared.
  • the number of the output pulse signals should be fixed and uniform, and preferably, one pulse signal can be output at a time. In this way, each pulse obtained by the controller module 103 corresponds to the gas supply volume V of the volume.
  • the controller module 103 can be composed of any one or more processor chips including MCU single-chip microcomputer, FPGA, CPLD, DSP, ARM, etc. and its peripheral circuits and programs, and its internal storage medium stores the information to complete the implementation of the present invention.
  • processor chips including MCU single-chip microcomputer, FPGA, CPLD, DSP, ARM, etc. and its peripheral circuits and programs, and its internal storage medium stores the information to complete the implementation of the present invention.
  • the relevant procedures for the method of monitoring the status of domestic gas leakage in the example are examples of the relevant procedures for the method of monitoring the status of domestic gas leakage in the example.
  • the controller module 103 acquires the pulses transmitted by the pulse module 102 in real time, records the time interval between the preset number of the pulse signals, and obtains the gas flow information in this time period according to the time interval , that is, the gas flow rate can be obtained by dividing the gas volume data represented by the predetermined number of pulse signals by the time interval, and the preset number can be any integer value greater than or equal to 2, and the flow rate refers to the unit time The volume of fluid flowing through the effective section of a closed pipe or open channel. According to the real-time gas flow information, the current gas leakage state can be obtained, so as to output the corresponding gas leakage signal, and select and execute different corresponding processing procedures according to different leakage states.
  • the communication module 104 is mainly used to establish a communication connection with the remote background of the gas company, and is used to send the relevant gas leakage signal with the gas meter identification to the remote background, so that the remote background can quickly obtain the corresponding abnormal information and Locate to a specific address.
  • the valve control module 105 can control the opening and closing of the gas. In the prior art, the valve control module 105 is generally controlled according to the billing situation.
  • the received gas leakage signal controls the action of the valve control module 105, so as to ensure the safety of the user's gas consumption.
  • the embodiment of the present invention improves the related modules in the existing gas meter, so that the gas leakage can be effectively monitored, the gas detector and the shut-off valve are omitted, and the overall cost of the equipment is greatly reduced.
  • an embodiment of the present invention provides a system for monitoring the state of domestic gas leakage, including:
  • the described smart gas meter 100 capable of monitoring the state of domestic gas leakage is used for judging whether gas leakage occurs according to the time interval between a preset number of pulse signals;
  • the remote background 200 is configured to receive the gas leakage signal sent by the gas meter 100, and send corresponding information to users and/or maintenance personnel according to the gas leakage signal.
  • a system matched with the gas meter 100 capable of monitoring the leakage state of household gas includes a plurality of gas meters 100 arranged on the user side and a remote background 200 arranged in the gas company .
  • Each gas meter 100 carries independent identity information for determining the actual geographic location of each gas meter 100 .
  • the remote background 200 is used to receive the relevant gas leakage signal sent by the gas meter 100, and then send corresponding information to the user according to the specific situation of the signal: specifically, when the danger level of gas leakage is not high, only a small-scale For maintenance or self-inspection by the user, a prompt signal can be sent to the user; when the gas leakage is dangerous to a certain extent, and the gas inlet may need to be shut off, a gas shut-off request signal can be sent to the user, and the gas shut-off request signal can be sent to the user after the user confirms or at After a period of time, it will be turned off by default, in order to take into account the normal gas consumption and safety of users as much as possible; when the danger of gas leakage is extremely high and a quick response is required, the gas inlet can be immediately turned off, and then the gas switch is sent to the user.
  • the remote background 200 can also establish a communication connection with the mobile terminal 300 of the staff of the gas company, so as to facilitate maintenance, investigation and emergency handling of accidents.
  • the remote background 200 set in the system of the embodiment of the present invention can realize the information communication between the user side and the gas center, which is convenient for timely informing the user of the specific situation of gas leakage in the home, and is also conducive to the integrated and unified treatment of gas leakage, which effectively reduces the occurrence of gas leakage. The overall operating cost of the system.
  • an embodiment of the present invention provides a method for monitoring the leakage state of household gas, which is used for monitoring the leakage status of household gas according to the system, including the following steps:
  • S4 Control the system to execute an alarm and/or gas shut-off procedure according to the result of the analysis.
  • the step S2 of analyzing the gas leakage state according to the flow information specifically includes:
  • the gas leakage level model is established through the following steps:
  • the gas leakage level is demarcated as overcurrent leakage.
  • the step S22 of outputting a corresponding gas leakage signal according to the classification result specifically includes:
  • step S3 of controlling the system to execute an alarm and/or a gas shut-off procedure includes the following steps:
  • S322 Send a control signal to the gas meter through the remote background to control the valve control module to perform a gas shut-off action.
  • S332 Send a gas shutdown notification to the user and/or maintenance personnel through the remote background.
  • S324 Send a control signal to the gas meter when the gas shut-off request signal passes or a feedback signal is not received within a preset time threshold.
  • the embodiment of the present invention divides the gas flow rate (ie, gas flow rate) of ordinary residential users per unit time into the following situations.
  • Q 0 represents the starting flow of the gas meter
  • Q 1 represents the minimum gas flow rate of the user's gas appliance or the minimum situation of the user's demand value
  • Q 2 represents the maximum gas flow rate of the user's gas appliance or the maximum situation of the user's demand value
  • Q 3 means The nominal maximum flow of the gas meter.
  • the gas flow actually obtained by the gas meter detection is denoted as Q.
  • the user demand value is a segment of the gas flow rate range that the user can define according to actual needs.
  • the gas leakage level is set as a trace leakage.
  • the leakage of gas is relatively small, and according to the further evaluation of the potential safety risk, the level of trace leakage can be re-classified.
  • Q p is the flow value between Q 0 and Q 1 , referring to the setting range of the national standard for alarm concentration of gas alarms, and taking the duration of 24 hours as an example, if the gas leaks at the gas flow rate Q p for 24 hours The total amount does not reach the minimum standard of the alarm concentration of the gas alarm.
  • the gas flow Q p is relatively safe and the safety risk is small.
  • the gas leakage level is set as early warning leakage. If such a situation is detected, there are certain dangerous factors, and measures such as system warning or alarm and/or valve closing according to user requirements are taken;
  • the small amount of gas leakage refers to a situation where the gas flow rate is low, which is lower than the usage value in a normal state.
  • the normal gas flow rate can be calculated and determined through the calibration load value of the gas appliance itself, or obtained through test measurement.
  • the second gas flow threshold Q 1 Take the gas flow of the gas appliance in the minimum gas consumption working mode as the second gas flow threshold Q 1 , when the gas flow detected by the gas meter is lower than the second gas flow threshold Q 1 , it is obvious that the It is not the reason why the user is using gas, but the gas is leaking out, and the amount of leakage is very small. The reason for this leakage is likely to be the aging of the gas pipeline itself, the gap between the gas pipeline and the gas appliance, or the measurement problem of the gas meter itself.
  • the leakage flow is small, the degree of hazard is very low, and the flow interval Q 0 -Q 1 of the trace leakage level can be re-classified according to the potential safety risk, and different processing procedures can be performed according to the degree of danger.
  • Q 0 , Q 1 , Q 2 , and Q 3 are shown as the first gas flow threshold, the second gas flow threshold, the third gas flow threshold and the fourth gas flow threshold, respectively.
  • the system in this embodiment of the present invention finds that the time interval between t1- At time t2, the time interval T between the 5 pulses is very long. Divide the gas volume represented by the 5 pulses by the time interval T between the 5 pulses to obtain the gas flow Q at t1-t2.
  • the above - mentioned analysis method is used to obtain the flow rate information of the gas, and a schematic diagram of the change of the gas flow rate from t1 to t4 can be obtained.
  • the gas flow rate increases from zero, but it does not reach the normal gas consumption level (Q 1 -Q 2 ), which belongs to the above-mentioned case of a small amount of gas leakage.
  • the time period t1-t2 lasted first, and then at time t2, the gas flow Q increased again, reaching the normal gas consumption level, indicating that the user turned on the gas appliance for use at this time, and at time t3 the gas
  • the flow rate falls to the level of Q 0 -Q 1 again, indicating that the user has turned off the gas appliance at this time, but the gas is leaking out at a small flow rate.
  • the controller module 103 in the gas meter will output a small gas leakage signal, and execute a corresponding reaction program.
  • This situation indicates that the gas pipeline, gas appliance or gas meter in the user's home has indeed failed, and different processing procedures can be implemented according to whether there is a safety risk in the current leakage amount (which can be determined by further comparing the relationship between Q and the aforementioned Q p ).
  • the gas company can pay attention to and track the leakage; if there is a safety risk, the remote backend of the gas company will record the gas leak signal sent by the communication module 104 in the gas meter and record it in the internal system and report it to the user in a timely manner. And/or maintenance personnel send a prompt signal to remind users to check by themselves or to facilitate maintenance personnel to arrange maintenance work.
  • the embodiment of the present invention enables gas companies and users to respond quickly at the initial stage of gas leakage, effectively reducing the probability of dangerous situations; it can check out the bad working conditions of related equipment to the greatest extent, and avoid further deterioration of gas leakage; and It can timely and effectively correct the measurement error of the gas meter itself and reduce the economic loss of the user.
  • the gas early warning leakage refers to abnormal shut-off of gas, serious aging of the gas pipeline, or an animal biting the gas pipeline, causing the gas flow rate to be higher than the range when the gas is normally used. External leakage, the gas leakage for a period of time at this flow rate is likely to cause harm to the user's personal property.
  • the gas early-warning leakage situation in this embodiment is likely to cause adverse effects on the personal safety of users, and in serious cases, it may lead to the occurrence of safety accidents, so other measures must be taken. appropriate emergency measures.
  • the level of gas leakage belongs to an early warning leakage situation.
  • Q 0 , Q 1 , Q 2 , and Q 3 are shown as the first gas flow threshold, the second gas flow threshold, the third gas flow threshold and the fourth gas flow threshold, respectively.
  • the gas flow Q increases from zero to reach the normal gas consumption level (Q 1 -Q 2 ) . ), in this case, it lasted for a period of t5-t6, indicating that the user turned on the gas appliance for use during this period, and then at t6, the gas flow Q suddenly increased and fell to the level of Q2 - Q3 .
  • the controller module 103 in the gas meter will output a gas warning leakage signal and execute the corresponding response procedure.
  • the communication module 104 in the gas meter will send a gas early warning leakage signal to the remote background of the gas company, and after receiving the gas early warning leakage signal, the remote background will send a gas shut-off request signal to the user's mobile terminal to notify the user Request to shut off the gas inlet, after receiving the confirmation information from the user, the valve control module controls the gas shut off.
  • the user may not immediately feed back the gas shut-off request signal through the mobile terminal, so the user may pass the gas shut-off request signal by default within a period of time after the gas shut-off request signal is issued, and subsequently shut off the gas of the gas.
  • a notification is sent to the user.
  • an early warning signal can also be sent to the user and/or maintenance personnel through the remote background, so as to inform the relevant personnel to start the processing work quickly.
  • the early warning signal should have a clear degree of distinction from the aforementioned prompt signal, so as to highlight the urgency of the leakage state in a more obvious form.
  • the embodiment of the present invention can quickly notify the user of relevant dangers when the gas leakage will threaten the personal safety of the user, so that the user can know that the gas appliance at home may not be well shut down in the first time; After eliminating the danger, you can choose not to shut off the gas supply to ensure the normal gas consumption of the user, and also can set the implementation means of automatically shutting off when no feedback from the user is received within a period of time to ensure the personal safety of the user.
  • the gas overcurrent leakage refers to the occurrence of emergencies such as the gas pipeline rubber hose falling off, the gas pipeline and the gas appliance connection port being disconnected, etc., resulting in large-scale gas leakage.
  • emergencies such as the gas pipeline rubber hose falling off, the gas pipeline and the gas appliance connection port being disconnected, etc.
  • the level of gas leakage belongs to the overcurrent leakage situation.
  • the leakage of gas in a short period of time is already very dangerous for the personal safety of the user. At this time, if the treatment is not carried out immediately, more serious safety accidents such as explosion may occur.
  • Q 0 , Q 1 , Q 2 , and Q 3 are shown as the first gas flow threshold, the second gas flow threshold, the third gas flow threshold and the fourth gas flow threshold, respectively.
  • the gas flow rate increases rapidly from zero, directly exceeding the normal gas consumption level (Q 1 ⁇ Q 2 ), and also exceeds the maximum nominal value Q 3 of the gas meter. It shows that a serious gas leakage occurred during this time period, and the specific reason may be caused by the falling off of the rubber hose.
  • the controller module 103 in the gas meter will output a gas overcurrent leakage signal, and the valve control module 105 will act to shut off the gas inlet.
  • the communication module 104 will send a gas over-current leakage signal to the remote background of the gas company, and after receiving the gas over-current leakage signal, the remote background will send a gas shutdown notification to the mobile terminal of the user and/or maintenance personnel to inform the user The reason for the shut-off of the gas, and notify the maintenance personnel to deal with the relevant maintenance work.
  • the embodiment of the present invention can immediately act to shut off the gas supply in the state of sudden gas leakage, so as to prevent the further deterioration of the accident and ensure the personal safety of the user to the greatest extent.

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Abstract

一种可监控家用燃气泄漏状态的智能燃气表（100）、系统及方法。该系统包括智能燃气表（100）和远程后台（200）。智能燃气表（100）包括用于计量燃气体积数据的基表(101)，脉冲模块(102)，控制器模块(103)，用于发送燃气泄漏信号的通讯模块(104)，用于控制燃气的通入和关断的阀控模块(105)。该方法的步骤包括获取脉冲信号之间的时间间隔（S1），分析燃气的流量信息（S2）；根据流量信息对燃气泄漏状态进行分析（S3）；根据分析的结果，控制系统执行对应程序（S4）。通过使用该监控方法，能够降低监控燃气泄漏的成本，更有效地针对不同的燃气泄漏严重程度作出应急反应，从而保证用户的生命财产安全，可广泛应用于燃气安全技术领域。

Description

一种可监控家用燃气泄漏状态的智能燃气表、系统及方法 技术领域
本发明涉及燃气安全技术领域，尤其是一种可监控家用燃气泄漏状态的智能燃气表、系统及方法。
背景技术
当今社会，燃气已经逐渐成为人们日常生活中必不可少的生活能源之一，各个主要城市的大部分楼宇也已经铺设了燃气管道。但是燃气给人们的生活带来方便、快捷的同时，也存在着一定的安全隐患，燃气泄漏等情况的发生很可能会导致安全事故。因此，监控家用燃气泄漏状态是一项极为重要的工作。
现有的燃气泄漏监控技术中，往往是基于燃气泄漏探测器、报警器等燃气安全设备，通过气体传感器探测用户家用燃气设备周围环境中的低浓度可燃气体，同时在燃气管道上配备相应的关断阀以关断燃气的通入。但是这种实施方式弊端较多：需要额外设置燃气泄漏探测器、关断阀，无疑增加了用户的经济负担；燃气泄漏探测器本身的检测精度十分依赖于安装位置，多会出现误报警、误切断的情况，且检测结果会受到厨房内油烟的影响；燃气管道上的关断阀会对燃气通入造成阻力，影响用户的燃气使用效果。现有技术中，还未有良好的技术方案能够有效解决上述问题。
发明内容
本发明的目的在于至少一定程度上解决现有技术中存在的技术问题之一。为此，本发明实施例提供一种可监控家用燃气泄漏状态的智能燃气表、系统及方法，能够降低监控燃气泄漏的成本，同时更有效地针对不同的燃气泄漏严重程度作出应急反应，从而保证用户的生命财产安全。
本发明实施例所采取的技术方案是：
第一方面，本发明实施例提供一种可监控家用燃气泄漏状态的智能燃气表，包括：
基表，用于计量通入燃气的体积数据；
脉冲模块，用于在所述体积数据的累计值达到预定目标时，输出脉冲信号；
控制器模块，用于接收所述脉冲信号，并记录预设个数的所述脉冲信号之间的时间间隔，根据所述时间间隔判断是否发生燃气泄漏，并在判断为发生燃气泄漏时输出燃气泄漏信号；
通讯模块，用于发送所述燃气泄漏信号；
阀控模块，用于控制燃气的通入和关断。
第二方面，本发明实施例提供一种可监控家用燃气泄漏状态的系统，包括：
所述的一种可监控家用燃气泄漏状态的智能燃气表，用于根据预设个数的脉冲信号之间的时间间隔判断是否发生燃气泄漏；
远程后台，用于接收所述燃气表发送的燃气泄漏信号，并根据所述燃气泄漏信号向用户和/或检修人员发送对应信息。
第三方面，本发明实施例提供一种可监控家用燃气泄漏状态的方法，包括以下步骤：
获取预设个数的脉冲信号之间的时间间隔；
根据所述时间间隔获取燃气的流量信息；
根据所述流量信息对燃气泄漏状态进行分析；
根据所述分析的结果，控制所述系统执行告警和/或燃气关断程序。
进一步，所述根据所述流量信息对燃气泄漏状态进行分析这一步骤，其具体包括：
通过预先建立的燃气泄漏等级模型对所述燃气流量进行分级，得到分级结果；
根据所述分级结果，输出对应的燃气泄漏信号。
进一步，所述燃气泄漏等级模型通过以下步骤建立：
根据燃气表的始动流量，设定第一燃气流量阈值；
根据燃气器具的最小用气流量和/或用户需求值，设定第二燃气流量阈值；
根据燃气器具的最大用气流量和/或用户需求值，设定第三燃气流量阈值；
根据燃气表的标称最大流量，设定第四燃气流量阈值；
当所述燃气流量大于第一燃气流量阈值，且小于所述第二燃气流量阈值时，将燃气泄漏等级标定为微量泄漏；
当所述燃气流量大于第二燃气流量阈值，且小于所述第三燃气流量阈值时，若检测到连续脉冲信号的个数超过第二预设个数，且各个脉冲信号间的时间间隔相同，将燃气泄漏等级标定为异常流量；
当所述燃气流量大于所述第三燃气流量阈值，且小于所述第四燃气流量阈值时，将燃气泄漏等级标定为预警泄漏；
当所述燃气流量大于所述第四燃气流量阈值时，将燃气泄漏等级标定为过流泄漏。
进一步，所述燃气泄漏等级模型的建立还包括以下步骤：
当所述燃气流量大于第一燃气流量阈值，且小于所述第二燃气流量阈值时，根据燃气泄漏安全风险的大小对微量泄漏等级进行再次分级。
进一步，所述控制所述系统执行告警和/或燃气关断程序这一步骤，其包括以下步骤：
当燃气表的控制器模块输出燃气微量泄漏信号时，通过远程后台向用户和/或检修人员发 送提示信号。
进一步，所述控制所述系统执行告警和/或燃气关断程序这一步骤，其包括以下步骤：
当燃气表的控制器模块输出燃气预警泄漏信号时，通过远程后台向用户和/或检修人员发送预警信号；
通过远程后台向燃气表发送控制信号，控制阀控模块执行燃气关断动作。
进一步，所述控制所述系统执行告警和/或燃气关断程序这一步骤，其包括以下步骤：
通过远程后台向用户发送燃气关断请求信号；
在所述燃气关断请求信号通过或未在预设时间阈值内接收到反馈信号时，向燃气表发送控制信号。
进一步，所述控制所述系统执行告警和/或燃气关断程序这一步骤，其包括以下步骤：
当燃气表的控制器模块输出燃气过流泄漏信号时，通过远程后台向燃气表发送控制信号，控制阀控模块执行燃气关断动作；
通过远程后台向用户和/或检修人员发送燃气关断通知。
本发明的优点和有益效果将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到：本发明实施例通过对现有的燃气表进行改进，使得其能够独立完成监控燃气泄漏的任务，同时本发明实施例中的系统和方法能够降低监控燃气泄漏的成本，更有效地针对不同的燃气泄漏严重程度作出应急反应，从而保证用户的生命财产安全。
附图说明
为了更清楚地说明本发明实施例或者现有技术中的技术方案，下面对本发明实施例或者现有技术中的相关技术方案附图作以下介绍，应当理解的是，下面介绍中的附图仅仅为了方便清晰表述本发明的技术方案中的部分实施例，对于本领域的技术人员来说，在无需付出创造性劳动的前提下，还可以根据这些附图获取到其他附图。
图1为本发明一种可监控家用燃气泄漏状态的智能燃气表具体实施例的模块示意图；
图2为本发明一种可监控家用燃气泄漏状态的系统具体实施例的示意图；
图3为本发明一种可监控家用燃气泄漏状态的方法具体实施例的流程示意图；
图4为本发明一种可监控家用燃气泄漏状态的方法具体实施例的燃气泄漏等级模型示意图；
图5为本发明一种可监控家用燃气泄漏状态的方法具体实施例的流量阈值示意图；
图6为本发明一种可监控家用燃气泄漏状态的方法具体实施例的微量泄漏示意图；
图7为本发明一种可监控家用燃气泄漏状态的方法具体实施例的预警泄漏示意图；
图8为本发明一种可监控家用燃气泄漏状态的方法具体实施例的过流泄漏示意图。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。对于以下实施例中的步骤编号，其仅为了便于阐述说明而设置，对步骤之间的顺序不做任何限定，实施例中的各步骤的执行顺序均可根据本领域技术人员的理解来进行适应性调整。
参照图1，本发明实施例提供了一种可监控家用燃气泄漏状态的智能燃气表，包括：
基表101，用于计量通入燃气的体积数据；
脉冲模块102，用于在所述体积数据的累计值达到预定目标时，输出脉冲信号；
控制器模块103，用于接收所述脉冲信号，并记录预设个数的所述脉冲信号之间的时间间隔，根据所述时间间隔判断是否发生燃气泄漏，并在判断为发生燃气泄漏时输出燃气泄漏信号；
通讯模块104，用于发送所述燃气泄漏信号；
阀控模块105，用于控制燃气的通入和关断。
本发明实施例中，提出了一种可监控家用燃气泄漏状态的智能燃气表，该燃气表主要应用于燃气用户家庭，现有技术中燃气表主要的作用是完成燃气流量数据的采集、计费和欠费时关闭燃气通入通道等任务。基于此，本发明实施例中，对上述现有的家用燃气表进行了功能的进一步优化和拓展，使得其能够不依赖外接的燃气探测器自行完成监控家用燃气泄漏状态的任务，本发明实施例具体原理如下：所述燃气表的基表101可以实时采集计量通入燃气的体积数据，例如通过燃气表内风箱薄膜的动作来确定排出燃气气体的体积，该体积对应燃气表滚轮计数器的读数单位。将基表101滚轮计数器的转动情况与脉冲模块102对应，例如滚轮计数器每转过一周，脉冲模块102输出一个脉冲。
脉冲模块102输出脉冲的预定目标的设置方式可以采用固定体积V的整数倍来实现，即所述体积数据的累计值达到V、2V、3V…nV(n为整数)时，输出脉冲信号；也可以采用固定体积V作为预定目标，当所述体积数据的累计值达到V时，输出脉冲信号并将累计值清零，应当理解的是，此处所指的累计值为脉冲模块记录的累计值，并非是基表的计量数据清零。另外，所述输出脉冲信号的数量应当固定且统一，优选的，可以设置为每次输出一个脉冲信号。这样，控制器模块103获取的每一个脉冲均对应体积V的燃气通入量。
控制器模块103可以由包括MCU单片机、FPGA、CPLD、DSP、ARM等在内的任一种 或多种处理器芯片及其外围电路和程序所构成，其内部的存储介质存储有完成本发明实施例中监控家用燃气泄漏状态方法的相关程序。所述控制器模块103实时获取由脉冲模块102传输来的脉冲，同时记录预设个数的所述脉冲信号之间的时间间隔，并根据所述时间间隔得出这个时间段内的燃气流量信息，即通过脉冲信号的预定数量所代表的燃气体积数据除以该时间间隔，便可得到燃气流量，所述预设个数可以是大于等于2的任一整数值，所述流量是指单位时间内流经封闭管道或明渠有效截面的流体体积。通过根据燃气实时的流量信息，即可获取到当前燃气的泄漏状态，从而输出相应的燃气泄漏信号，并由不同的泄漏状态选择执行不同的对应处理程序。在不同的燃气泄漏状态下通过不同的形式来向用户发出对应的信号，使得用户能够快速获取到燃气表监控出的异常状态结果。所述通讯模块104主要用于与燃气公司的远程后台建立通讯连接，用于向远程后台发送带有该燃气表身份标识的相关燃气泄漏信号，以使远程后台能够快速获取到相应的异常信息并定位到具体的地址。所述阀控模块105可以控制燃气的通入和关断，现有技术中一般是根据计费情况来控制所述阀控模块105的，而本发明实施例中则是通过控制器模块103给到的燃气泄漏信号控制阀控模块105动作，从而保障用户的用气安全。本发明实施例对现有的燃气表内相关模块进行了改进，使得其能够有效监控燃气泄漏，省去了燃气探测器和关断阀，大大降低了设备总体的成本。
参照图2，本发明实施例提供了一种可监控家用燃气泄漏状态的系统，包括：
所述的一种可监控家用燃气泄漏状态的智能燃气表100，用于根据预设个数的脉冲信号之间的时间间隔判断是否发生燃气泄漏；
远程后台200，用于接收所述燃气表100发送的燃气泄漏信号，并根据所述燃气泄漏信号向用户和/或检修人员发送对应信息。
本发明实施例中，还提供了一种与所述可监控家用燃气泄漏状态的燃气表100配套的系统，该系统包括多个设置在用户侧的燃气表100和设置在燃气公司的远程后台200。每个燃气表100都携带有独立的身份信息，用于确定各个燃气表100的实际地理位置。所述远程后台200用于接收燃气表100发送的相关燃气泄漏信号，然后根据所述信号的具体情形向用户发送对应的信息：具体地，当燃气泄漏的危险级别不高，只需小规模的检修或者用户自查即可的，可以向用户发送提示信号；当燃气泄漏有一定危险，可能需要关断燃气通入的情况时，可以向用户发送燃气关断请求信号，等到用户确认后或者在一段时间后默认关断，以尽可能同时兼顾到用户的正常用气和使用安全；当燃气泄漏的危险性极高需要快速反应的，可以立即关断燃气的通入，然后向用户发送燃气关断通知以告知用户相关险情。另外，所述远程后台200还可以与燃气公司工作人员的移动终端300建立通讯连接，以方便开展检修、排查和 事故的紧急处理工作。本发明实施例系统中设置的远程后台200可以实现用户侧与燃气中心的信息通讯，方便了及时告知用户家庭燃气泄漏的具体情况，同时也有利于燃气泄漏的集成化、统一处理，有效降低了系统整体的运营成本。
参照图3，本发明实施例提供了一种可监控家用燃气泄漏状态的方法，用于根据所述的系统监控家用燃气泄漏状态，包括以下步骤：
S1：获取预设个数的脉冲信号之间的时间间隔；
S2：根据所述时间间隔获取燃气的流量信息；
S3：根据所述流量信息对燃气泄漏状态进行分析；
S4：根据所述分析的结果，控制所述系统执行告警和/或燃气关断程序。
进一步作为优选的实施方式，所述根据所述流量信息对燃气泄漏状态进行分析这一步骤S2，其具体包括：
S21：通过预先建立的燃气泄漏等级模型对所述燃气流量进行分级，得到分级结果；
S22：根据所述分级结果，输出对应的燃气泄漏信号。
参照图4，进一步作为优选的实施方式，所述燃气泄漏等级模型通过以下步骤建立：
根据燃气表的始动流量，设定第一燃气流量阈值；
根据燃气器具的最小用气流量和/或用户需求值，设定第二燃气流量阈值；
根据燃气器具的最大用气流量和/或用户需求值，设定第三燃气流量阈值；
根据燃气表的标称最大流量，设定第四燃气流量阈值；
当所述燃气流量大于第一燃气流量阈值，且小于所述第二燃气流量阈值时，将燃气泄漏等级标定为微量泄漏；
当所述燃气流量大于第二燃气流量阈值，且小于所述第三燃气流量阈值时，若检测到连续脉冲信号的个数超过第二预设个数，且各个脉冲信号间的时间间隔相同，将燃气泄漏等级标定为异常流量；
当所述燃气流量大于所述第三燃气流量阈值，且小于所述第四燃气流量阈值时，将燃气泄漏等级标定为预警泄漏；
当所述燃气流量大于所述第四燃气流量阈值时，将燃气泄漏等级标定为过流泄漏。
所述根据所述分级结果，输出对应的燃气泄漏信号这一步骤S22，其具体包括：
S221：当所述燃气流量处于微量泄漏等级时，输出燃气微量泄漏信号；
S222：当所述燃气流量处于预警泄漏等级时，输出燃气预警泄漏信号；
S223：当所述燃气流量处于过流泄漏等级时，输出燃气过流泄漏信号。
进一步作为优选的实施方式，所述控制所述系统执行告警和/或燃气关断程序这一步骤S3，其包括以下步骤：
S311：当燃气表的控制器模块输出燃气微量泄漏信号时，通过远程后台向用户和/或检修人员发送提示信号。
S321：当燃气表的控制器模块输出燃气预警泄漏信号时，通过远程后台向用户和/或检修人员发送预警信号；
S322：通过远程后台向燃气表发送控制信号，控制阀控模块执行燃气关断动作。
S331：当燃气表的控制器模块输出燃气过流泄漏信号时，通过远程后台向燃气表发送控制信号，控制阀控模块执行燃气关断动作；
S332：通过远程后台向用户和/或检修人员发送燃气关断通知。
进一步作为优选的实施方式，还包括以下步骤：
S323：通过远程后台向用户发送燃气关断请求信号；
S324：在所述燃气关断请求信号通过或未在预设时间阈值内接收到反馈信号时，向燃气表发送控制信号。
参照图4、5，本发明实施例根据燃气表的性能和燃烧器具用气特性，将普通居民用户在单位时间内的过气量(即燃气流量)分为以下几种情形。其中，Q 0表示燃气表始动流量；Q 1表示用户燃气器具最小用气流量或用户需求值的最小情况；Q 2表示用户燃气器具最大用气流量或用户需求值的最大情况；Q 3表示燃气表的标称最大流量。实际通过燃气表检测获得的燃气流量记为Q。其中，所述用户需求值为用户可根据实际需要自定义的一段用气流量区间。
当Q 0<Q≤Q 1时：将燃气泄漏等级定为微量泄漏。此时燃气的泄漏量比较小，而根据进一步评估潜在的安全风险大小，还可以对微量泄漏等级进行再次分级。例如，假设Q p是Q 0和Q 1之间的流量值，参照燃气报警器报警浓度国家标准的设定范围，以持续时间24小时为例，若该燃气流量Q p下24小时的燃气泄漏总量还达不到燃气报警器报警浓度的最低标准，考虑到燃气自身的稀释和消散，则可认为此燃气流量Q p相对安全，安全风险小。当Q<Q p时，燃气的泄漏量不会产生安全事故，可以只做后台预警处理；当Q>Q p时，泄漏量在一定时间内产生的安全风险大，此时可以采取报警措施或在一定条件下采取关阀处理。Q p的设定值还根据不同燃气特性和应用环境，经过实验来确定。如果需要，也可以在微量泄漏的区间内划分多级等级。
当Q 1<Q≤Q 2时，一般情况下属于正常的用气流量范围。但这种情况下仍然存在用气的安全风险(如人离开忘记关火等情况)，故可以用检测到连续脉冲信号的个数超过第二预设个 数，且各个脉冲信号之间的时间间隔相同来判定发生了上述情况，其中所述的第二预设个数应该设置为较大数值，防止出现正常用气情况下的误报警。出现这种异常流量的情况时，也可采取报警或关阀(可选)等措施；
当Q 2<Q≤Q 3时，将燃气泄漏等级定为预警泄漏。检测到此种情况，存在一定的危险因素，采取系统预警或根据用户要求报警和/或关阀等措施；
当Q 3<Q时，将燃气泄漏等级标定为过流泄漏。检测到此种情况时，安全风险极大，采取立即关阀并报警等措施。
下面结合附图对本发明方法实施例中的各类燃气泄漏情况进行详细说明。
第一实施例：本发明实施例中，所述燃气微量泄漏是指燃气流量较低，低于正常状态下的使用值的情况。这种情况下，因为获取得到的燃气流量低于正常使用时的数据，而正常的燃气流量可以通过燃气器具本身的标定负荷值来计算确定，或者通过试验测量的方式获取。取所述燃气器具在最小耗气工作模式下的燃气流量作为第二燃气流量阈值Q 1，当燃气表检测到的燃气流量低于所述第二燃气流量阈值Q 1时，则显然此时并不是用户在使用燃气的原因，而是燃气正在向外泄漏，泄漏量很小，这种泄漏的原因很可能是燃气管道本身老化、燃气管道和燃气器具连接有缝隙或者燃气表具本身计量出现问题。
由于这个泄漏流量较小，所以危害程度很低，还可以具体按照潜在的安全风险大小，对微量泄漏等级的流量区间Q 0-Q 1进行再次分级，按照危险程度执行不同的处理程序。
参照图6，所示Q 0、Q 1、Q 2、Q 3分别为第一燃气流量阈值、第二燃气流量阈值、第三燃气流量阈值和第四燃气流量阈值。针对所述燃气微量泄漏的情况，本发明实施例中的所述系统通过获取预设个数的脉冲信号之间的时间间隔，具体地，例如5个脉冲之间的时间间隔，发现在t1-t2时刻，5个脉冲之间的时间间隔T都非常长，用5个脉冲代表的燃气体积除以5个脉冲之间的时间间隔T，得到在t1-t2燃气流量Q恰好落入到Q 0、Q 1之间，类似地采用上述的分析方法获取燃气的流量信息，可以得到t1-t4的燃气流量变化示意图。其中，在t1时刻，燃气流量从零增加，但并未达到正常的燃气用气水平(Q 1-Q 2)，属于上述燃气微量泄漏的情况。在该种情况下首先持续了t1-t2时间段，然后在t2时刻，燃气流量Q再次增加，达到了正常的燃气用气水平，说明这个时间用户打开了燃气器具在使用，而在t3时刻燃气流量又再次落入到了Q 0-Q 1的水平，说明此时用户关闭了燃气器具，但燃气此时在以较小的流量向外泄漏。因此，在上述的t1-t2、t3-t4时间段内，燃气表中的控制器模块103将输出燃气微量泄漏信号，并执行相应的反应程序。这种情况说明用户家庭内的燃气管道、燃气器具或者燃气表确实出现了故障，可以根据目前泄漏量是否存在安全风险(可进一步对比Q与前述 Q p关系来确定)执行不同处理程序，若不存在安全风险，则燃气公司可留意并跟踪该泄漏情况；若存在安全风险，燃气公司的远程后台收到燃气表中通讯模块104发送的燃气微量泄漏信号后，在内部系统中记录并适时向用户和/或检修人员发送提示信号，提醒用户自行查验或者方便检修人员安排检修工作。本发明实施例可以使得燃气公司及用户在燃气泄漏发生的开始阶段就作出快速反应，有效降低险情出现的概率；可最大程度上排查出相关设备的不良工况，避免燃气泄漏的进一步恶化；还能够及时有效修正燃气表本身的计量误差，减少用户的经济损失。
第二实施例：本发明实施例中，所述燃气预警泄漏是指出现燃气的不正常关断、燃气管道老化严重或者动物咬破燃气管道，导致燃气流量以高于正常使用燃气时的范围向外泄漏，在该流量下持续一段时间段的燃气泄漏量很有可能会对用户人身财产造成危害的情况。
不同于上述的第一种燃气微量泄漏的情形，本实施例中燃气预警泄漏的情况很可能会对用户的人身安全造成不良影响，严重的还有可能会导致安全事故的发生，因此必须采取其他相应的应急手段来处理。本发明实施例中，当所述燃气流量大于第三燃气流量阈值，且小于第四燃气流量阈值时，燃气泄漏的等级属于预警泄漏情形。
参照图7和上述第一实施例，所示Q 0、Q 1、Q 2、Q 3分别为第一燃气流量阈值、第二燃气流量阈值、第三燃气流量阈值和第四燃气流量阈值。针对所述燃气预警泄漏的情况，本发明实施例中的所述系统记录的燃气流量变化示意图中，在t5时刻，燃气流量Q从零增加，达到正常的燃气用气水平(Q 1-Q 2)，在该种情况下持续了t5-t6时间段，说明这个时间段用户打开了燃气器具在使用，然后在t6时刻，燃气流量Q突然上升，落入到了Q 2-Q 3的水平，此时可能是由于燃气器具并没有被良好关闭、关闭出现了故障，或者燃气管道出现了一些破口。燃气此时发生了漏气，在t6-t7时间段，燃气流量Q处于预警泄漏等级，此时燃气表中的控制器模块103将输出燃气预警泄漏信号，并执行对应的反应程序。具体地，燃气表中的通讯模块104将发送燃气预警泄漏信号到燃气公司的远程后台，远程后台收到所述燃气预警泄漏信号后，将发送燃气关断请求信号到用户的移动终端，向用户请求关断燃气的通入，当接收到用户的确认信息后，通过阀控模块控制燃气关断。更进一步地，用户有时可能并不会立即通过移动终端反馈所述燃气关断请求信号，因此还可以在所述燃气关断请求信号发出后一段时间内默认通过，并后续将燃气的燃气关断通知发送给用户。另外，还可以通过远程后台向用户和/或检修人员发送预警信号，以告知相关人员迅速展开处理工作。所述预警信号应当与前述的提示信号具有明显的区分度，以更加明显的形式突出泄漏状态的紧急性。
本发明实施例可以使得在燃气泄漏会对用户人身安全造成威胁的情况下，快速通知到用 户相关险情，使得用户能够在第一时间内获知到家中的燃气器具可能没有良好关闭；在用户自查排除险情后，可以选择不关断燃气的通入以保证用户的正常用气，同时也可设置在一段时间内未接收到用户的反馈时自动关断的实施手段，以保证用户的人身安全。
第三实施例：本发明实施例中，所述燃气过流泄漏是指出现燃气管道胶管脱落、燃气管道与燃气器具接线口断开等突发事件，导致燃气大规模向外泄漏，这种情况往往比较随机，且后果十分严重，泄漏的流量会直接超出燃气表的最大标称值。故本发明实施例中，当所述燃气流量大于所述第四燃气流量阈值时，燃气泄漏的等级属于过流泄漏情形。在该种情况下，燃气短时间内的泄漏量对用户人身安全来说就已经非常危险了，此时如果不立即进行处理，还有可能发生爆炸等更为严重的安全事故。
参照图8和上述第一实施例，所示Q 0、Q 1、Q 2、Q 3分别为第一燃气流量阈值、第二燃气流量阈值、第三燃气流量阈值和第四燃气流量阈值。针对所述燃气过流泄漏的情况，本发明实施例中的所述系统记录的燃气流量变化示意图中，在t8时刻，燃气流量从零迅速增加，直接超过了正常的用气水平(Q 1-Q 2)，并且还超出了燃气表的最大标称值Q 3。说明这个时间段突发了严重的燃气泄漏，具体原因可能是由于胶管的脱落造成的。t8-t9时间段时，燃气表中的控制器模块103将输出燃气过流泄漏信号，阀控模块105动作关断燃气通入。通讯模块104将发送燃气过流泄漏信号到燃气公司的远程后台，远程后台收到所述燃气过流泄漏信号后，将发送燃气关断通知到用户和/或检修人员的移动终端，以告知用户燃气的关断原因，并通知到检修人员前去处理相关检修维护工作。本发明实施例可以在燃气突发泄漏状态下第一时间动作关断燃气的通入，防止事故的进一步恶化，以最大程度保证用户的人身安全。
在本说明书的描述中，参考术语“一个实施方式”、“另一实施方式”或“某些实施方式”等的描述意指结合实施方式或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施方式，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施方式进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (10)

  1. 一种可监控家用燃气泄漏状态的智能燃气表，其特征在于，包括：
    基表，用于计量通入燃气的体积数据；
    脉冲模块，用于在所述体积数据的累计值达到预定目标时，输出脉冲信号；
    控制器模块，用于接收所述脉冲信号，并记录预设个数的所述脉冲信号之间的时间间隔，根据所述时间间隔判断是否发生燃气泄漏，并在判断为发生燃气泄漏时输出燃气泄漏信号；
    通讯模块，用于发送所述燃气泄漏信号；
    阀控模块，用于控制燃气的通入和关断。
  2. 一种可监控家用燃气泄漏状态的系统，其特征在于，包括：
    如权利要求1所述的一种可监控家用燃气泄漏状态的智能燃气表，用于根据预设个数的脉冲信号之间的时间间隔判断是否发生燃气泄漏，并在判断为发生燃气泄漏时输出燃气泄漏信号；
    远程后台，用于接收所述燃气表发送的燃气泄漏信号，并根据所述燃气泄漏信号向用户和/或检修人员发送对应信息。
  3. 一种可监控家用燃气泄漏状态的方法，用于根据如权利要求2所述的系统监控家用燃气泄漏状态，其特征在于，包括以下步骤：
    获取预设个数的脉冲信号之间的时间间隔；
    根据所述时间间隔获取燃气的流量信息；
    根据所述流量信息对燃气泄漏状态进行分析；
    根据所述分析的结果，控制所述系统执行告警和/或燃气关断程序。
  4. 根据权利要求3所述的一种可监控家用燃气泄漏状态的方法，其特征在于：所述根据所述流量信息对燃气泄漏状态进行分析这一步骤，其具体包括：
    通过预先建立的燃气泄漏等级模型对所述燃气流量进行分级，得到分级结果；
    根据所述分级结果，输出对应的燃气泄漏信号。
  5. 根据权利要求4所述的一种可监控家用燃气泄漏状态的方法，其特征在于：所述燃气泄漏等级模型通过以下步骤建立：
    根据燃气表的始动流量，设定第一燃气流量阈值；
    根据燃气器具的最小用气流量和/或用户需求值，设定第二燃气流量阈值；
    根据燃气器具的最大用气流量和/或用户需求值，设定第三燃气流量阈值；
    根据燃气表的标称最大流量，设定第四燃气流量阈值；
    当所述燃气流量大于第一燃气流量阈值，且小于所述第二燃气流量阈值时，将燃气泄漏 等级标定为微量泄漏；
    当所述燃气流量大于第二燃气流量阈值，且小于所述第三燃气流量阈值时，若检测到连续脉冲信号的个数超过第二预设个数，且各个脉冲信号间的时间间隔相同，将燃气泄漏等级标定为异常流量；
    当所述燃气流量大于所述第三燃气流量阈值，且小于所述第四燃气流量阈值时，将燃气泄漏等级标定为预警泄漏；
    当所述燃气流量大于所述第四燃气流量阈值时，将燃气泄漏等级标定为过流泄漏。
  6. 根据权利要求5所述的一种可监控家用燃气泄漏状态的方法，其特征在于：所述燃气泄漏等级模型的建立还包括以下步骤：
    当所述燃气流量大于第一燃气流量阈值，且小于所述第二燃气流量阈值时，根据燃气泄漏安全风险的大小对微量泄漏等级进行再次分级。
  7. 根据权利要求6所述的一种可监控家用燃气泄漏状态的方法，其特征在于：所述控制所述系统执行告警和/或燃气关断程序这一步骤，其包括以下步骤：
    当燃气表的控制器模块输出燃气微量泄漏信号时，通过远程后台向用户和/或检修人员发送提示信号。
  8. 根据权利要求6所述的一种可监控家用燃气泄漏状态的方法，其特征在于：所述控制所述系统执行告警和/或燃气关断程序这一步骤，其包括以下步骤：
    当燃气表的控制器模块输出燃气预警泄漏信号时，通过远程后台向用户和/或检修人员发送预警信号；
    通过远程后台向燃气表发送控制信号，控制阀控模块执行燃气关断动作。
  9. 根据权利要求8所述的一种可监控家用燃气泄漏状态的方法，其特征在于，还包括以下步骤：
    通过远程后台向用户发送燃气关断请求信号；
    在所述燃气关断请求信号通过或未在预设时间阈值内接收到反馈信号时，向燃气表发送控制信号。
  10. 根据权利要求6所述的一种可监控家用燃气泄漏状态的方法，其特征在于：所述控制所述系统执行告警和/或燃气关断程序这一步骤，其包括以下步骤：
    当燃气表的控制器模块输出燃气过流泄漏信号时，通过远程后台向燃气表发送控制信号，控制阀控模块执行燃气关断动作；
    通过远程后台向用户和/或检修人员发送燃气关断通知。
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CN115713840A (zh) * 2022-10-08 2023-02-24 重庆中烟工业有限责任公司 一种天然气防泄漏联动报警系统
CN116480956A (zh) * 2023-04-28 2023-07-25 火眼科技(天津)有限公司 一种地下管网泄露检测系统及方法
CN117037433A (zh) * 2023-09-06 2023-11-10 北京诺成新科技有限公司 一种基于云平台的燃气监测控制系统及方法
CN117035396A (zh) * 2023-07-04 2023-11-10 北京市燃气集团有限责任公司 一种燃气安全联锁保护方法、系统和电子设备
CN117270404A (zh) * 2023-11-23 2023-12-22 苏州安极能互联科技有限公司 一种多租户场景下能源供给精细控制系统及方法
CN117571095A (zh) * 2023-11-08 2024-02-20 佛燃能源集团股份有限公司 一种基于燃气计量的表具故障实时监测方法及系统
CN118482787A (zh) * 2024-07-16 2024-08-13 临沂沂川仪表有限公司 一种家庭智能用水的水表监测系统及其监测方法
CN118669740A (zh) * 2024-08-23 2024-09-20 功尊仪表(浙江)有限公司 一种户内燃气管道泄漏隐患监控系统

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Publication number Priority date Publication date Assignee Title
CN115713840A (zh) * 2022-10-08 2023-02-24 重庆中烟工业有限责任公司 一种天然气防泄漏联动报警系统
CN116480956A (zh) * 2023-04-28 2023-07-25 火眼科技(天津)有限公司 一种地下管网泄露检测系统及方法
CN116480956B (zh) * 2023-04-28 2024-01-23 火眼科技(天津)有限公司 一种地下管网泄露检测系统及方法
CN117035396A (zh) * 2023-07-04 2023-11-10 北京市燃气集团有限责任公司 一种燃气安全联锁保护方法、系统和电子设备
CN117037433A (zh) * 2023-09-06 2023-11-10 北京诺成新科技有限公司 一种基于云平台的燃气监测控制系统及方法
CN117037433B (zh) * 2023-09-06 2024-03-05 北京诺成新科技有限公司 一种基于云平台的燃气监测控制系统及方法
CN117571095A (zh) * 2023-11-08 2024-02-20 佛燃能源集团股份有限公司 一种基于燃气计量的表具故障实时监测方法及系统
CN117571095B (zh) * 2023-11-08 2024-06-04 佛燃能源集团股份有限公司 一种基于燃气计量的表具故障实时监测方法及系统
CN117270404A (zh) * 2023-11-23 2023-12-22 苏州安极能互联科技有限公司 一种多租户场景下能源供给精细控制系统及方法
CN117270404B (zh) * 2023-11-23 2024-02-02 苏州安极能互联科技有限公司 一种多租户场景下能源供给精细控制系统及方法
CN118482787A (zh) * 2024-07-16 2024-08-13 临沂沂川仪表有限公司 一种家庭智能用水的水表监测系统及其监测方法
CN118669740A (zh) * 2024-08-23 2024-09-20 功尊仪表(浙江)有限公司 一种户内燃气管道泄漏隐患监控系统

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