CN112233370B - Gas leakage alarm method, device and equipment - Google Patents
Gas leakage alarm method, device and equipment Download PDFInfo
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- CN112233370B CN112233370B CN202011040773.4A CN202011040773A CN112233370B CN 112233370 B CN112233370 B CN 112233370B CN 202011040773 A CN202011040773 A CN 202011040773A CN 112233370 B CN112233370 B CN 112233370B
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
- G08B19/005—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow combined burglary and fire alarm systems
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/117—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means by using a detection device for specific gases, e.g. combustion products, produced by the fire
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- 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
Abstract
The invention discloses a gas leakage alarm method, a device and equipment, comprising the following steps: acquiring monitoring data of the monitored gas equipment; storing the monitoring data of each time, and acquiring the valve state and the preset threshold value of the gas equipment; continuously comparing the monitored gas equipment according to the valve state, the preset threshold and the monitoring data to determine the equipment state; and generating alarm information according to the equipment state, and switching a gas alarm mode according to the alarm information. The invention also discloses a device and terminal equipment. The embodiment of the invention realizes real-time monitoring and alarming of the gas equipment, and improves the accuracy and reliability of alarming when gas leaks; in addition, the invention also obtains monitoring data through the temperature sensor and the flow sensor, and has low cost and convenient installation and replacement.
Description
Technical Field
The invention relates to the technical field of gas safety, in particular to a gas leakage alarm method, a gas leakage alarm device and gas leakage alarm equipment.
Background
The existing kitchen safety monitoring system mainly comprises passive sensors such as a CO sensor, a smoke sensor and a combustible gas sensor; the state of a monitoring area is collected through a sensor, and when the sensor monitors that the corresponding target concentration exceeds the standard, a valve closing instruction is sent to valve control equipment of the system, and alarm information and the like are sent at the same time. However, since the monitoring process starts with monitoring of the leaked gas concentration, the sensor of the kitchen safety monitoring system is often unable to act because the gas leakage concentration does not reach the alarm threshold set by the sensor at the initial stage of the accident, and the alarm system is unable to alarm in time. When the sensor reaches the alarm threshold to generate action, the gas leaked in the environment can threaten the lives and properties, so that the existing kitchen safety monitoring system can not effectively reduce the probability of accidents.
Moreover, because the gas concentration monitoring sensor is high in cost, a common probe is a gas sensor, the monitoring principle is that chemical reaction is converted into an electric signal, the accuracy is poor, the gas concentration monitoring sensor is inconvenient to replace after installation, the effective service life of the gas concentration monitoring sensor is very short, generally 3 years, and if the use environment is severe, the gas sensor is accelerated to lose efficacy, so that the service life is shorter; and the gas sensor needs to be monitored again to be continuously used after the use time is exceeded, otherwise, the probability of sensor failure is increased, and the later cost is higher.
Disclosure of Invention
The invention provides a gas leakage alarm method, a gas leakage alarm device and gas leakage alarm equipment, which are used for monitoring and alarming gas equipment in real time and improving the accuracy and reliability of alarming when gas leaks.
The embodiment of the invention provides a gas leakage alarm method, which comprises the following steps:
acquiring monitoring data of the monitored gas equipment;
storing the monitoring data of each time, and acquiring the valve state and the preset threshold value of the gas equipment;
continuously comparing the monitored gas equipment according to the valve state, the preset threshold and the monitoring data to determine the equipment state;
and generating alarm information according to the equipment state, and switching a gas alarm mode according to the alarm information.
Preferably, the preset threshold includes: a first preset temperature, a first preset temperature change rate and a first preset gas flow;
the monitoring data includes: the gas flow monitoring system comprises a first monitoring temperature, a first monitoring temperature change rate, a first environment temperature and a first monitoring gas flow.
Preferably, the continuous comparison processing is performed on the monitored gas equipment according to the valve state, the preset threshold and the monitoring data, and the equipment state is determined, specifically:
when the valve state is a closed state;
if the first monitoring temperature is lower than the first preset temperature, the first monitoring temperature change rate is lower than the first preset temperature change rate, and the first monitoring gas flow is equal to zero, determining that the gas equipment is in a normal closed state;
if the first monitoring temperature is lower than the first preset temperature, the change rate of the first monitoring temperature is lower than the change rate of the first preset temperature, and the first monitoring gas flow is higher than zero, determining that the gas equipment leaks;
if the first monitoring temperature change rate is greater than or equal to the first preset temperature change rate and/or the first monitoring temperature is greater than or equal to the first preset temperature, determining that the fire disaster happens to the gas equipment;
when the valve state is an open state;
if the first monitored temperature change rate is smaller than the first preset temperature change rate, the first monitored temperature is smaller than the first preset temperature, and the first monitored gas flow is smaller than the first preset gas flow, the gas equipment is determined to be in a normal starting state;
if the first monitored temperature change rate is smaller than the first preset temperature change rate, the first monitored temperature is smaller than the first preset temperature, and the first monitored gas flow is larger than the first preset gas flow, determining that the gas equipment leaks;
if first monitoring temperature is less than first preset temperature, first monitoring temperature is greater than first ambient temperature, first monitoring gas flow equals zero, then confirms that the strapping table of gas equipment damages or takes place to steal the action of using the gas.
Preferably, according to equipment state generate alarm information to switch the gas alarm mode according to alarm information, specifically do:
when the gas equipment is in a leakage state, generating a first gas alarm mode signal, performing sound-light alarm, controlling a valve to cut off gas, and sending the first gas alarm mode signal to a user and an alarm center;
when the state of the gas equipment is a fire disaster, generating a second gas alarm mode signal, performing sound-light alarm, controlling a valve to cut off gas, and sending the second gas alarm mode signal to a user and an alarm center;
and when the gas equipment is in a state that the meter is damaged or gas is stolen, generating a third gas alarm mode signal, performing sound-light alarm and sending the third gas alarm mode signal to an alarm center.
Preferably, the preset threshold is an alarm threshold set on the gas equipment.
Correspondingly, the embodiment of the invention also provides a gas leakage alarm device, which comprises: monitoring module, acquisition module, processing module and alarm module, wherein:
the monitoring module is used for acquiring monitoring data of the monitored gas equipment;
the acquisition module is used for storing monitoring data of each monitoring and acquiring the valve state and the preset threshold value of the gas equipment;
the processing module is used for continuously comparing the monitored gas equipment according to the valve state, the preset threshold and the monitoring data to determine the equipment state;
and the alarm module is used for generating alarm information according to the equipment state and switching the gas alarm mode according to the alarm information.
Preferably, the preset threshold includes: a first preset temperature, a first preset temperature change rate and a first preset gas flow;
the monitoring data includes: the first monitoring temperature, the first monitoring temperature change rate, the first environment temperature and the first monitoring gas flow.
Preferably, the determining module includes:
when the valve state is a closed state;
a first determining unit, configured to determine that the gas appliance is in a normally closed state if the first monitored temperature is lower than the first preset temperature, the first monitored temperature change rate is lower than the first preset temperature change rate, and the first monitored gas flow rate is equal to zero;
a second determining unit, configured to determine that the first monitored temperature is lower than the first preset temperature, the first monitored temperature change rate is lower than the first preset temperature change rate, and if the first monitored gas flow is greater than zero, the gas device leaks, and then the gas device leaks;
a third determining unit, configured to determine that a fire occurs in the gas device if the first monitored temperature change rate is greater than or equal to the first preset temperature change rate and/or the first monitored temperature is greater than or equal to the first preset temperature;
when the valve state is an open state;
a fourth determining unit, configured to determine that the gas device is in a normal on state if the first monitored temperature change rate is smaller than the first preset temperature change rate, the first monitored temperature is smaller than the first preset temperature, and the first monitored gas flow is smaller than the first preset gas flow;
a fifth determining unit, configured to determine that the gas device leaks when the first monitored temperature change rate is smaller than the first preset temperature change rate, the first monitored temperature is smaller than the first preset temperature, and the first monitored gas flow is greater than the first preset gas flow;
and the sixth determining unit is used for determining that the first monitoring temperature is less than the first preset temperature, the first monitoring temperature is greater than the first environment temperature, and the first monitoring gas flow is equal to zero, so that the meter of the gas equipment is damaged or gas stealing behavior occurs.
Preferably, the alarm module includes:
the first alarm unit is used for generating a first gas alarm mode signal when the gas equipment is in a leakage state, performing sound-light alarm, controlling a valve to cut off gas and sending the first gas alarm mode signal to a user and an alarm center;
the second alarm unit is used for generating a second fuel gas alarm mode signal when the fuel gas equipment is in a fire disaster state, performing sound-light alarm, controlling a valve to cut off fuel gas and sending the second fuel gas alarm mode signal to a user and an alarm center;
and the third alarm unit is used for generating a third gas alarm mode signal when the gas equipment is in a state that the gauge is damaged or gas is stolen, giving an audible and visual alarm and sending the third gas alarm mode signal to an alarm center.
Preferably, the preset threshold is an alarm threshold set on the gas equipment.
Preferably, the monitoring module is further provided with a remote communication interface, communicates with a background server, and transmits the data monitored each time to the background server in real time.
Accordingly, an embodiment of the present invention further provides a gas leakage alarm device, which is characterized by comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements the gas leakage alarm method according to any one of claims 1 to 5 when executing the computer program.
In the embodiment of the invention, monitoring data are obtained by monitoring the gas equipment, and the equipment state is determined by continuously comparing the monitoring data with a preset threshold value, so that corresponding alarm information is generated and sent to a user, the gas equipment is monitored and alarmed in real time, and the accuracy and reliability of alarming when gas leaks are improved; in addition, the invention also obtains monitoring data through the temperature sensor and the flow sensor, and has low cost and convenient installation and replacement.
Drawings
FIG. 1 is a schematic flow chart of a gas leakage alarm method provided in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a gas leakage alarm device provided in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of a processing module of a gas leakage alarm device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an embodiment of an alarm module of a gas leakage alarm device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, it is a schematic flow chart of a gas leakage alarm method provided in an embodiment of the present invention, including the following steps:
s101, acquiring monitoring data of the monitored gas equipment;
in an embodiment of the present invention, the gas equipment is provided with a temperature sensor and a flow sensor, and is configured to obtain monitoring data of the gas equipment, where the monitoring data specifically includes: the temperature of the gas equipment, the temperature change rate of the gas equipment, the ambient temperature and the gas flow of the gas equipment; it should be noted that the temperature change rate of the gas appliance refers to a change of the temperature value of the gas appliance in a certain period of time, and the ambient temperature is the temperature of the ambient environment of the gas appliance in a normal state.
In this embodiment, acquire monitoring data through temperature sensor and flow sensor, it is lower than traditional gas sensor cost, and long service life, more be fit for the installation and the change in later stage.
S102, storing the monitoring data of each time, and acquiring the valve state and the preset threshold value of the gas equipment;
in the embodiment of the invention, the acquired monitoring data of the gas equipment are stored, and the monitoring data can be transmitted to the background server in real time through the remote communication interface every time, so that the real-time monitoring of the data of the gas equipment is realized.
The valve state of the gas equipment has two states, namely open and close; the preset threshold value is a preset value which is set on the gas equipment by a user in advance and reaches an alarm condition, and comprises the maximum temperature of the gas equipment, the maximum temperature change rate of the gas equipment and the maximum gas flow of the gas equipment; the preset value is adjusted according to the field condition and is finished by installation and maintenance personnel, and common users cannot allow the preset value to be set.
In this embodiment, the preset threshold value of the alarm condition is set, and the user can adjust the setting according to the actual situation, so that the monitored gas equipment has more flexibility in different occasions, and the alarm condition is more accurate by setting the preset threshold value.
S103, continuously comparing the monitored gas equipment according to the valve state, the preset threshold and the monitoring data to determine the equipment state;
in this embodiment, the determined device states include:
when the valve state is a closed state;
if the actual monitored temperature of the gas equipment is lower than the preset maximum temperature, the actual monitored temperature change rate of the gas equipment is lower than the preset maximum temperature change rate, and the actual monitored gas flow is equal to zero, at the moment, the valve is in a closed state, the temperature keeps the ambient temperature or slightly changes, such as transient temperature changes generated by personnel activities, microwave ovens, refrigerators and the like, but the actual monitored temperature and the actual monitored temperature change rate of the gas equipment do not exceed the preset threshold value, and the flow sensor does not monitor the flow, which indicates that the monitored data are all in a normal range, the gas equipment is determined to be in a normal closed state;
if the actual monitored temperature of the gas equipment is lower than the preset maximum temperature, the actual monitored temperature change rate of the gas equipment is lower than the preset maximum temperature change rate, and the actual monitored gas flow of the gas equipment is larger than zero, at the moment, the valve is in a closed state, although the actual monitored temperature and the actual monitored temperature change rate of the gas equipment do not exceed the preset maximum temperature and the preset maximum temperature change rate, the flow sensor detects flow generation, the monitored flow data is abnormal, and the flow sensor is not in a normal range, and the gas equipment is determined to be leaked;
if the actual monitored temperature change rate of the gas equipment is greater than or equal to the preset maximum temperature change rate and/or the actual monitored temperature of the gas equipment is greater than or equal to the preset maximum temperature, the valve is in a closed state at the moment, but the monitored temperature change rate and/or the temperature of the gas equipment exceed the corresponding preset values, the temperature is increased at a very high speed, and the temperature is not in a normal range, and the gas equipment is determined to be in a fire;
when the valve state is an open state;
if the actual monitored temperature change rate of the gas equipment is smaller than the preset maximum temperature change rate, the actual monitored temperature of the gas equipment is smaller than the maximum preset temperature, the actual monitored gas flow of the gas equipment is smaller than the preset maximum gas flow, at the moment, the valve is in an opening state, the monitored temperature of the gas equipment is smaller than the preset temperature, the temperature change rate of the gas equipment is also smaller than the preset value, the flow generated by the gas equipment is also smaller than the preset value, and the monitored data are in a normal range, the gas equipment is determined to be in a normal opening state;
if the actual monitored temperature change rate of the gas equipment is smaller than the preset maximum temperature change rate, the actual monitored temperature of the gas equipment is smaller than the preset maximum temperature, the actual monitored gas flow of the gas equipment is larger than the preset maximum gas flow, and at the moment, the valve is in an opening state, the temperature and the temperature change rate of the gas equipment are both smaller than the preset value, but the gas flow exceeds the preset value, so that the temperature and the temperature change rate data of the gas equipment are normal, but the gas flow is abnormal and is not in a normal range, and the gas equipment is determined to be leaked;
if the actual monitoring temperature of the gas equipment is less than the preset maximum temperature, the actual monitoring temperature of the gas equipment is greater than the ambient temperature, the actual monitoring gas flow of the gas equipment is equal to zero, at the moment, the valve is in an opening state, the temperature of the gas equipment is less than the preset value but greater than the ambient temperature, the fact that the gas equipment is normally used is shown, but the flow is not generated, and then it is determined that the meter of the gas equipment is damaged or the behavior of stealing the gas is generated.
And S104, generating alarm information according to the equipment state, and switching the gas alarm mode according to the alarm information.
In the embodiment of the invention, corresponding alarm information is further generated according to the determined state of the gas equipment; when the state of the gas equipment is leakage, generating a first gas alarm mode signal, performing sound-light alarm, controlling a valve to cut off gas, and sending the first gas alarm mode signal to a user and an alarm center;
when the state of the gas equipment is a fire disaster, generating a second gas alarm mode signal, performing sound-light alarm, controlling a valve to cut off the gas and sending the second gas alarm mode signal to a user and an alarm center;
and when the gas equipment is in a state that the meter is damaged or gas is stolen, generating a third gas alarm mode signal, performing sound-light alarm and sending the third gas alarm mode signal to an alarm center.
It should be noted that the alarm mode is determined by the state of the gas equipment and the alarm mode is sent to the user or the alarm center in real time, so that the user can control the use state of the gas equipment in real time, and can know whether the gas equipment is normally used in the use process, whether the gas equipment is used by other people, whether a fire occurs, whether the gas flow is in a normal range, and the like, so that the gas equipment can be maintained in time.
In the embodiment of the invention, monitoring data are obtained by monitoring the gas equipment, and the equipment state is determined by continuously comparing the monitoring data with a preset threshold value, so that corresponding alarm information is generated and sent to a user, the gas equipment is monitored and alarmed in real time, and the accuracy and reliability of alarming when gas leaks are improved; in addition, the invention also obtains monitoring data through the temperature sensor and the flow sensor, and has low cost and convenient installation and replacement.
An embodiment of the present invention further provides a gas leakage alarm device, which is capable of implementing the flow of the gas leakage alarm method shown in fig. 1, and is described in detail below with reference to fig. 2 to 4.
Referring to fig. 2, the gas leakage alarm device provided in the embodiment of the present invention includes a monitoring module 201, an obtaining module 202, a processing module 203, and an alarm module 204.
The monitoring module 201 is configured to obtain monitoring data of the monitored gas device;
the acquisition module 202 is configured to store monitoring data of each monitoring, and acquire a valve state and a preset threshold of the gas appliance;
the processing module 203 is configured to perform continuous comparison processing on the monitored gas equipment according to the valve state, the preset threshold and the monitoring data, and determine an equipment state;
and the alarm module 204 is used for generating alarm information according to the equipment state and switching a gas alarm mode according to the alarm information.
Further, the preset threshold includes: a first preset temperature, a first preset temperature change rate and a first preset gas flow;
the monitoring data includes: the gas flow monitoring system comprises a first monitoring temperature, a first monitoring temperature change rate, a first environment temperature and a first monitoring gas flow.
Referring to fig. 3, a schematic structural diagram of an embodiment of a processing module of a gas leakage alarm device according to an embodiment of the present invention is provided. An embodiment of the present invention provides a processing module 203, including:
when the valve state is a closed state;
a first processing unit 301, configured to determine that the gas appliance is in a normal shutdown state if the first monitored temperature is lower than the first preset temperature, the first monitored temperature change rate is lower than the first preset temperature change rate, and the first monitored gas flow rate is equal to zero;
a second processing unit 302, configured to determine that the gas device leaks when the first monitored temperature is lower than the first preset temperature, the first monitored temperature change rate is lower than the first preset temperature change rate, and the first monitored gas flow is greater than zero;
a third processing unit 303, configured to determine that a fire occurs in the gas device if the first monitored temperature change rate is greater than or equal to the first preset temperature change rate and/or the first monitored temperature is greater than or equal to the first preset temperature;
when the valve state is an open state;
a fourth processing unit 304, configured to determine that the gas device is in a normal on state if the first monitored temperature change rate is smaller than the first preset temperature change rate, the first monitored temperature is smaller than the first preset temperature, and the first monitored gas flow rate is smaller than the first preset gas flow rate;
a fifth processing unit 305, configured to determine that the gas device leaks if the first monitored temperature change rate is smaller than the first preset temperature change rate, the first monitored temperature is smaller than the first preset temperature, and the first monitored gas flow is greater than the first preset gas flow;
a sixth processing unit 306, configured to enable the first monitored temperature to be less than the first preset temperature, enable the first monitored temperature to be greater than the first environmental temperature, and enable the first monitored gas flow to be equal to zero, then determine that the meter of the gas appliance is damaged or a gas stealing behavior occurs.
Referring to fig. 4, a schematic structural diagram of an embodiment of an alarm module of a gas leakage alarm device according to an embodiment of the present invention is provided. The embodiment of the invention provides an alarm module 204, which comprises:
the first alarm unit 401 is configured to generate a first gas alarm mode signal when the gas equipment is in a leakage state, perform sound and light alarm, control a valve to cut off gas, and send the first gas alarm mode signal to a user and an alarm center;
a second alarm unit 402, configured to generate a second fuel gas alarm mode signal when the gas equipment is in a fire state, perform an audible and visual alarm, control a valve to cut off fuel gas, and send the second fuel gas alarm mode signal to a user and an alarm center;
and a third alarm unit 403, configured to generate a third gas alarm mode signal when the gas appliance is in a state where the meter is damaged or gas is stolen, perform sound-light alarm, and send the third gas alarm mode signal to an alarm center.
Further, the preset threshold is an alarm threshold set on the gas equipment.
Furthermore, the monitoring module is also provided with a remote communication interface which is communicated with the background server and transmits the data monitored each time to the background server in real time.
The embodiment of the present invention further provides a terminal device, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, and when being executed by the processor, the computer program implements each process of the above-mentioned gas leakage alarm method embodiment, and can achieve the same technical effect, and is not described herein again to avoid repetition.
The terminal device can be a desktop computer, a notebook, a palm computer, a cloud server and other computing devices. The terminal device may include, but is not limited to, a processor, a memory. It will be appreciated by those skilled in the art that the schematic diagram is merely an example of a terminal device and does not constitute a limitation of a terminal device, and may include more or less components than those shown, or combine certain components, or different components, for example, the terminal device may also include input output devices, network access devices, buses, etc.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like, which is the control center of the terminal device and connects the various parts of the whole terminal device using various interfaces and lines.
The memory may be used for storing the computer programs and/or modules, and the processor may implement various functions of the terminal device by executing or executing the computer programs and/or modules stored in the memory and calling data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
Wherein, the terminal device integrated module/unit can be stored in a computer readable storage medium if it is implemented in the form of software functional unit and sold or used as an independent product. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a terminal connection between them, which may be specifically implemented as one or more terminal buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (8)
1. A gas leakage alarm method is characterized by comprising the following steps:
acquiring monitoring data of the monitored gas equipment;
storing the monitoring data of each time, and acquiring the valve state and the preset threshold value of the gas equipment;
continuously comparing the monitored gas equipment according to the valve state, the preset threshold and the monitoring data to determine the equipment state; wherein the preset threshold comprises: a first preset temperature, a first preset temperature change rate and a first preset gas flow; the monitoring data includes: a first monitored temperature, a first monitored temperature change rate, a first ambient temperature and a first monitored gas flow; the method comprises the following specific steps:
when the valve state is a closed state;
if the first monitored temperature is lower than the first preset temperature, the change rate of the first monitored temperature is lower than the change rate of the first preset temperature, and the first monitored gas flow is equal to zero, determining that the gas equipment is in a normal closed state;
if the first monitoring temperature is lower than the first preset temperature, the change rate of the first monitoring temperature is lower than the change rate of the first preset temperature, and the first monitoring gas flow is larger than zero, determining that the gas equipment leaks;
if the first monitoring temperature change rate is greater than or equal to the first preset temperature change rate and/or the first monitoring temperature is greater than or equal to the first preset temperature, determining that the fire disaster happens to the gas equipment;
when the valve state is an open state;
if the first monitored temperature change rate is smaller than the first preset temperature change rate, the first monitored temperature is smaller than the first preset temperature, and the first monitored gas flow is smaller than the first preset gas flow, determining that the gas equipment is in a normal opening state;
if the first monitored temperature change rate is smaller than the first preset temperature change rate, the first monitored temperature is smaller than the first preset temperature, and the first monitored gas flow is larger than the first preset gas flow, determining that the gas equipment leaks;
if the first monitored temperature is lower than the first preset temperature, the first monitored temperature is higher than the first environment temperature, and the first monitored gas flow is equal to zero, determining that a meter of the gas equipment is damaged or a gas stealing behavior occurs;
and generating alarm information according to the equipment state, and switching a gas alarm mode according to the alarm information.
2. The gas leakage alarm method according to claim 1, wherein the alarm information is generated according to the device state, and the gas alarm mode is switched according to the alarm information, specifically:
when the gas equipment is in a leakage state, generating a first gas alarm mode signal, performing sound-light alarm, controlling a valve to cut off gas, and sending the first gas alarm mode signal to a user and an alarm center;
when the state of the gas equipment is a fire disaster, generating a second gas alarm mode signal, performing sound-light alarm, controlling a valve to cut off gas, and sending the second gas alarm mode signal to a user and an alarm center;
and when the gas equipment is in a state that the meter is damaged or gas is stolen, generating a third gas alarm mode signal, performing sound-light alarm and sending the third gas alarm mode signal to an alarm center.
3. A gas leak alarm method according to claim 1, characterised in that said preset threshold value is an alarm threshold value set on said gas appliance.
4. A gas leakage alarm device, characterized by comprising: monitoring module, acquisition module, processing module and alarm module, wherein:
the monitoring module is used for acquiring monitoring data of the monitored gas equipment;
the acquisition module is used for storing monitoring data of each monitoring and acquiring the valve state and the preset threshold value of the gas equipment;
the processing module is used for continuously comparing the monitored gas equipment according to the valve state, the preset threshold value and the monitoring data to determine the equipment state; wherein the preset threshold comprises: a first preset temperature, a first preset temperature change rate and a first preset gas flow; the monitoring data includes: a first monitored temperature, a first monitored temperature change rate, a first ambient temperature and a first monitored gas flow;
the processing module comprises:
when the valve state is a closed state;
the first processing unit is used for determining that the gas equipment is in a normal closed state if the first monitored temperature is lower than the first preset temperature, the first monitored temperature change rate is lower than the first preset temperature change rate, and the first monitored gas flow is equal to zero;
the second processing unit is used for determining that the first monitored temperature is lower than the first preset temperature, the first monitored temperature change rate is lower than the first preset temperature change rate, and if the first monitored gas flow is larger than zero, the gas equipment leaks, and if the gas equipment leaks, the gas equipment leaks;
the third processing unit is used for determining that the fire disaster happens to the gas equipment if the first monitored temperature change rate is greater than or equal to the first preset temperature change rate and/or the first monitored temperature is greater than or equal to the first preset temperature;
when the valve state is an open state;
a fourth processing unit, configured to determine that the gas device is in a normal on state if the first monitored temperature change rate is smaller than the first preset temperature change rate, the first monitored temperature is smaller than the first preset temperature, and the first monitored gas flow rate is smaller than the first preset gas flow rate;
a fifth processing unit, configured to determine that the gas device leaks if the first monitored temperature change rate is smaller than the first preset temperature change rate, the first monitored temperature is smaller than the first preset temperature, and the first monitored gas flow is greater than the first preset gas flow;
the sixth processing unit is used for determining that the meter of the gas equipment is damaged or gas stealing behavior occurs when the first monitored temperature is lower than the first preset temperature, the first monitored temperature is higher than the first environment temperature and the first monitored gas flow is equal to zero;
and the alarm module is used for generating alarm information according to the equipment state and switching the gas alarm mode according to the alarm information.
5. The gas leak alarm device of claim 4, wherein the alarm module comprises:
the first alarm unit is used for generating a first gas alarm mode signal when the gas equipment is in a leakage state, performing sound-light alarm, controlling a valve to cut off gas and sending the first gas alarm mode signal to a user and an alarm center;
the second alarm unit is used for generating a second fuel gas alarm mode signal when the state of the fuel gas equipment is a fire disaster, performing sound and light alarm, controlling a valve to cut off fuel gas and sending the second fuel gas alarm mode signal to a user and an alarm center;
and the third alarm unit is used for generating a third gas alarm mode signal when the gas equipment is in a state that the gauge is damaged or gas is stolen, giving an audible and visual alarm and sending the third gas alarm mode signal to an alarm center.
6. The gas leak alarm device according to claim 4, wherein the preset threshold is an alarm threshold set on the gas appliance.
7. The gas leakage alarm device according to claim 5, wherein the monitoring module is further provided with a remote communication interface, communicates with a background server, and transmits data monitored each time to the background server in real time.
8. A gas leak alarm device, comprising a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the gas leak alarm method according to any one of claims 1 to 3 when executing the computer program.
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| CN113418142B (en) * | 2021-06-30 | 2022-06-14 | 武汉飞恩微电子有限公司 | Natural gas leakage monitoring system and method |
| CN114648859A (en) * | 2022-05-20 | 2022-06-21 | 浙江正泰仪器仪表有限责任公司 | Monitoring system, method and device for gas equipment |
| CN117267632B (en) * | 2023-11-21 | 2024-03-12 | 山东智慧燃气物联网技术有限公司 | Gas leakage early warning method and device based on intelligent gas |
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