CN116146910A - Gas leakage detection method based on infrared temperature-sensing camera - Google Patents
Gas leakage detection method based on infrared temperature-sensing camera Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10048—Infrared image
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Abstract
The application relates to a gas leakage detection method based on an infrared temperature sensing camera, which comprises the steps of acquiring temperature data of gas equipment through the temperature sensing camera and uploading the temperature data to a wireless remote transmission gas meter; the wireless remote transmission gas meter receives the temperature data of the gas utilization equipment, acquires the gas flow data of the gas utilization equipment, and sends the temperature data and the gas flow data of the gas utilization equipment to the big data monitoring platform; the big data monitoring platform receives the temperature data and the gas flow data of the gas equipment, processes and analyzes the temperature data and the gas flow data according to a preset gas leakage judging algorithm, judges whether gas leakage exists, and sends gas leakage signals to the gas self-closing valve and the early warning information receiving terminal respectively when the gas leakage exists. The gas leakage can be detected at the beginning of gas leakage, the gas leakage can be detected without waiting for the gas concentration in the environment to reach a certain value, and compared with the traditional methane sensor detection mode, the gas leakage detection method is more timely, and the early warning purpose is achieved. Compared with the flameout protection function of the gas stove, the gas micro-leakage between the gas supply point and the gas utilization point can be detected.
Description
Technical Field
The disclosure relates to the technical field of gas safety detection, in particular to a gas leakage infrared detection and early warning system, a gas leakage detection method based on an infrared temperature-sensing camera and a control system.
Background
The natural gas is widely used, so that great convenience is brought to people, and meanwhile, accidents such as gas poisoning, gas explosion and the like are easily caused by gas leakage.
The continuous popularization of natural gas brings great convenience to life, but brings a plurality of potential safety hazards at the same time, and threatens the life and property safety of people at any time. Among all the safety accidents related to the fuel gas, the safety accidents caused by the household fuel gas are the largest. Out of 539 gas safety accidents recorded in 2020, 336 occurred in residents, accounting for 62% of the number of annual accidents.
The gas leakage detection in the current market can only detect the gas leakage when the concentration of the gas in the air reaches a certain value, and the gas leakage can not be detected in an early warning mode under the condition of gas micro leakage. Various safety protection measures are proposed for protecting the life and property safety of people, and the following two gas leakage detection schemes are similar to the invention.
Patent CN213118505U discloses a gas leakage early warning control system: the invention belongs to the technical field of gas leakage early warning, and provides a gas leakage early warning control system which comprises a gas leakage detection unit, a gas leakage early warning unit and a cloud server control unit, wherein the gas leakage detection unit is in signal connection with the gas leakage early warning unit, and the gas leakage early warning unit is in signal connection with the cloud server control unit; the gas leakage detection unit is arranged to obtain gas leakage detection information, the cloud server control unit is arranged to judge the gas leakage state according to the gas leakage detection information, and the gas leakage early warning unit is arranged to perform gas leakage early warning according to the gas leakage state information. Although the problem that the gas leakage detection in the current market can only be usually performed through on-site detection is solved, the method is time-consuming and labor-consuming, and the problem that the early warning detection can not be performed on the gas leakage under the condition of gas micro leakage can be solved.
Patent CN111932841a discloses a NB-IoT based gas leakage alarm system: the invention discloses a gas leakage alarm system based on NB-IoT (remote control unit-internet of things), which comprises a gas leakage detection module and an NB-IoT remote transmission module, wherein the gas leakage detection module and the NB-IoT remote transmission module work independently in a split mode, the gas leakage module comprises a wireless transmitting module and a combustible gas alarm, the NB-IoT remote transmission module comprises a wireless receiving module, a main control module and an NB-IoT module, the gas leakage detection module and the NB-IoT remote transmission module are in communication in a low-power consumption 2.4G wireless mode, the gas leakage detection module is connected with a gas meter with a valve, the NB-IoT remote transmission module is responsible for transmitting data with a gas early warning platform and is connected with an exhaust device, and the gas early warning platform can send alarm information to a mobile phone terminal after receiving alarm signals. Has the following advantages: the split type design is adopted, the fuel gas leakage detection module is powered by the battery, a user can conveniently install the fuel gas leakage detection module in a region meeting requirements, the NB-IoT remote transmission module is powered by the mains supply, and the user can select a position with better NB-IoT signals in home and directly plug in the mains supply socket. But still cannot solve the following three problems of gas leakage detection in the current market:
1. small gas leaks below 6% lel cannot be detected;
2. the gas concentration sensor can detect gas leakage only when the gas concentration in the air reaches a certain value;
3. the gas leakage of the pipeline between the gas using equipment and the gas supplying equipment cannot be detected.
Disclosure of Invention
In order to solve the problems, the application provides a gas leakage infrared detection and early warning system, a gas leakage detection method based on an infrared temperature sensing camera and a control system.
In one aspect of the present application, a gas leakage infrared detection and early warning system is provided, including:
the gas leakage information detection module is used for acquiring gas equipment temperature information and gas flow data through infrared measurement and temperature measurement, and uploading the gas equipment temperature information and the gas flow data to the big data monitoring platform;
the big data monitoring platform is used for acquiring, processing and analyzing temperature information and gas flow data of the gas equipment, judging whether gas leakage exists or not, and respectively transmitting judgment results to the gas self-closing valve and the early warning information receiving terminal;
the gas self-closing valve is used for executing the judging result of the big data monitoring platform on gas leakage, and if the gas leakage is judged, the gas self-closing valve executes closing operation and cuts off gas supply;
the early warning information receiving terminal is used for receiving the gas leakage early warning information sent by the big data monitoring platform when the gas is leaked;
the gas leakage information detection module is in communication connection with the big data monitoring platform, and the gas self-closing valve and the early warning information receiving terminal are respectively in communication connection with the big data monitoring platform.
As an optional embodiment of the present application, optionally, the gas leakage information detection module includes:
the thermal camera is used for acquiring temperature information of the gas equipment and sending the temperature information of the gas equipment to the wireless remote transmission gas meter;
the wireless remote transmission gas meter is used for collecting the gas flow of the gas equipment and sending the gas flow and the temperature information of the gas equipment to the big data monitoring platform;
the gas equipment is in communication connection with the thermal camera, and the thermal camera is in communication connection with the wireless remote gas meter.
As an optional embodiment of the present application, optionally, a wireless remote-transmission gas meter includes:
the gas flow sensor is used for collecting gas flow and sending the gas flow to the DTU data transmission terminal;
and the DTU data transmission terminal is used for sending the gas flow and the temperature information of the gas equipment to the big data monitoring platform.
In another aspect of the present application, a method for detecting gas leakage based on an infrared temperature-sensing camera is provided, and the method is implemented based on a gas leakage infrared detection and early warning system, and includes the following steps:
the thermal camera acquires temperature data of gas equipment and uploads the temperature data to the wireless remote transmission gas meter;
the wireless remote transmission gas meter receives the temperature data of the gas utilization equipment, acquires the gas flow data of the gas utilization equipment, and sends the temperature data and the gas flow data of the gas utilization equipment to the big data monitoring platform;
the big data monitoring platform receives the temperature data and the gas flow data of the gas equipment, processes and analyzes the temperature data and the gas flow data according to a preset gas leakage judging algorithm, judges whether gas leakage exists or not, and judges whether to send out a gas leakage signal according to a judging result:
if the gas leakage signal is sent, the gas leakage signal is respectively sent to a gas self-closing valve and an early warning information receiving terminal;
if the gas leakage signal is not sent, the judgment is ended, and the next round of judgment is waited.
As an optional embodiment of the present application, optionally, the big data monitoring platform receives temperature data and gas flow data of the gas consumption device, and performs processing analysis according to a preset gas leakage judgment algorithm to judge whether the gas leaks, including:
if the wireless remote gas meter detects gas flow data and the thermal camera does not detect a heat source with a corresponding heat value at the gas utilization equipment, judging that the gas is leaked;
if the wireless remote gas meter detects gas flow data and the thermal camera detects that a heat source with a corresponding heat value exists at the gas utilization equipment, judging that the gas is not leaked;
if the wireless remote transmission gas meter does not detect the gas flow data and the thermal camera detects the heat source with the corresponding heat value at the gas utilization equipment, the gas meter judges that the gas meter is accidentally burned.
As an optional embodiment of the present application, optionally, further comprising:
and when the big data monitoring platform judges that the fuel gas leaks, sending a fuel gas leakage signal, and respectively sending the fuel gas leakage signal to the fuel gas self-closing valve and the early warning information receiving terminal.
As an optional embodiment of the present application, optionally, the gas leakage judging algorithm specifically includes:
the gas flow value acquired by the wireless remote transmission gas meter is X, and the unit is m 3 H, X is 0;
the temperature of the gas using equipment collected by the thermal camera is Y, the unit is the temperature, and the default value of Y is 0;
a gas self-closing valve control signal Z, when Z is equal to 0, the gas self-closing valve is closed; when Z is equal to 1, the gas self-closing valve is opened, and the default value of Z is 1;
the gas leakage state records that the signal M, M is a Boolean value, gas leakage occurs when true, the signal M is a normal state when false, and the default value of M is false;
if X is greater than 0 and Y is less than 1000, M is set to true and Z is set to 0;
if X is greater than 0 and Y is greater than 1000, M, Z maintains the default value;
if X is equal to 0 and Y is greater than 1000, M is set to 2 and Z is set to 0.
As an optional implementation manner of the present application, optionally, the gas leakage judging algorithm is preset, and the gas leakage judging algorithm is configured on a big data monitoring platform.
In another aspect of the present application, a control system is also provided, including:
a processor;
a memory for storing processor-executable instructions;
the processor is configured to implement the gas leakage detection method based on the infrared temperature-sensing camera when executing the executable instructions.
The invention has the technical effects that:
based on the embodiment of the application, the temperature data of the gas equipment is acquired through the thermal camera and uploaded to the wireless remote transmission gas meter; the wireless remote transmission gas meter receives the temperature data of the gas utilization equipment, acquires the gas flow data of the gas utilization equipment, and sends the temperature data and the gas flow data of the gas utilization equipment to the big data monitoring platform; the big data monitoring platform receives the temperature data and the gas flow data of the gas equipment, processes and analyzes the temperature data and the gas flow data according to a preset gas leakage judging algorithm, judges whether gas leakage exists or not, and judges whether to send out a gas leakage signal according to a judging result: if the gas leakage signal is sent, the gas leakage signal is respectively sent to a gas self-closing valve and an early warning information receiving terminal; if the gas leakage signal is not sent, the judgment is ended, and the next round of judgment is waited. The gas leakage can be detected at the beginning of gas leakage, the gas concentration in the environment does not need to be detected after reaching a certain value, and compared with the traditional methane sensor detection mode, the gas leakage detection method is more timely, and the early warning purpose is achieved. Compared with the flameout protection function of the gas stove, the gas micro-leakage between the gas supply point and the gas utilization point can be detected.
Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features and aspects of the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic diagram of an application system of the infrared detection and early warning system for gas leakage according to the present invention;
FIG. 2 is a schematic diagram of an application system of the gas leakage information detection module according to the present invention;
fig. 3 is a schematic flow chart of an implementation of the gas leakage detection method based on the infrared temperature-sensing camera.
Detailed Description
Various exemplary embodiments, features and aspects of the disclosure will be described in detail below with reference to the drawings. In the drawings, like reference numbers indicate identical or functionally similar elements. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
In addition, numerous specific details are set forth in the following detailed description in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements, and circuits well known to those skilled in the art have not been described in detail in order not to obscure the present disclosure.
Example 1
According to the gas leakage detection method, the gas leakage can be detected at the beginning of the gas leakage, the gas concentration in the environment does not need to be detected after reaching a certain value, the detection mode is more timely compared with the traditional methane sensor, and the early warning purpose is achieved. Compared with the flameout protection function of the gas stove, the gas micro-leakage between the gas supply point and the gas utilization point can be detected.
The application is used for solving the following three problems of gas leakage detection in the current market:
1. small gas leaks below 6% lel cannot be detected;
2. the gas concentration sensor can detect gas leakage only when the gas concentration in the air reaches a certain value;
3. the gas leakage of the pipeline between the gas using equipment and the gas supplying equipment cannot be detected.
Firstly, a system combining infrared temperature measurement is provided, and the infrared temperature measurement data of gas equipment and the gas flow data of the gas equipment (namely gas equipment) are combined to jointly judge gas leakage.
As shown in fig. 1, in one aspect of the present application, a gas leakage infrared detection and early warning system is provided, including:
1. the gas leakage information detection module is used for acquiring gas equipment temperature information and gas flow data through infrared measurement and temperature measurement, and uploading the gas equipment temperature information and the gas flow data to the big data monitoring platform;
as shown in fig. 2, as an alternative embodiment of the present application, optionally, the gas leakage information detection module includes:
the thermal camera is used for acquiring temperature information of the gas equipment and sending the temperature information of the gas equipment to the wireless remote transmission gas meter;
the wireless remote transmission gas meter is used for collecting the gas flow of the gas equipment and sending the gas flow and the temperature information of the gas equipment to the big data monitoring platform;
the gas equipment is in communication connection with the thermal camera, and the thermal camera is in communication connection with the wireless remote gas meter.
2. The big data monitoring platform is used for acquiring, processing and analyzing temperature information and gas flow data of the gas equipment, judging whether gas leakage exists or not, and respectively transmitting judgment results to the gas self-closing valve and the early warning information receiving terminal;
3. the gas self-closing valve is used for executing the judging result of the big data monitoring platform on gas leakage, and if the gas leakage is judged, the gas self-closing valve executes closing operation and cuts off gas supply;
4. the early warning information receiving terminal is used for receiving the gas leakage early warning information sent by the big data monitoring platform when the gas is leaked;
the gas leakage information detection module is in communication connection with the big data monitoring platform, and the gas self-closing valve and the early warning information receiving terminal are respectively in communication connection with the big data monitoring platform.
As an optional embodiment of the present application, optionally, a wireless remote-transmission gas meter includes:
the gas flow sensor is used for collecting gas flow and sending the gas flow to the DTU data transmission terminal;
and the DTU data transmission terminal is used for sending the gas flow and the temperature information of the gas equipment to the big data monitoring platform.
In specific application, the specific application hardware of each module may be selected by a user, and the communication connection manner between each device may be a wired or wireless manner, which is specifically determined according to the adopted device hardware base, and the embodiment is not limited.
The thermal camera acquires temperature information of the gas equipment, sends the temperature information of the gas equipment to the wireless remote gas meter, and sends data to the big data monitoring platform through the wireless remote gas meter as an information transmission unit. The wireless remote-transmission gas meter is composed of a preferable gas flow sensor and a DTU data transmission terminal, wherein the gas flow sensor is used for collecting gas flow, and the DTU data transmission terminal is used for sending gas flow data and thermal camera temperature data to a big data monitoring platform.
The big data monitoring platform is used for acquiring the gas leakage detection information, processing and analyzing the gas leakage detection information, judging whether the gas is leaked, and respectively sending the judging result to the gas self-closing valve and the early warning information receiving terminal. The gas self-closing valve is used for executing the judging result of the big data monitoring platform on gas leakage, and if the gas leakage is judged, the gas self-closing valve executes closing operation to cut off gas supply. The police information receiving terminal is a preferable intelligent mobile phone and a personal computer. And if the big data monitoring platform judges that the fuel gas leaks, sending fuel gas leakage early warning information to the user intelligent mobile phone and the personal computer.
The method for judging whether the fuel gas leaks by the big data monitoring platform comprises the following steps:
1. if the wireless remote gas meter detects gas flow data and the thermal camera does not detect a heat source with a corresponding heat value at the gas utilization equipment, judging that the gas is leaked;
2. if the wireless remote gas meter detects gas flow data and the thermal camera detects that a heat source with a corresponding heat value exists at the gas utilization equipment, judging that the gas is not leaked;
3. if the wireless remote transmission gas meter does not detect the gas flow data and the thermal camera detects the heat source with the corresponding heat value at the gas utilization equipment, the gas meter judges that the gas meter is accidentally burned.
The calculation method for judging whether the fuel gas leaks comprises the following steps:
the gas flow value acquired by the wireless remote gas meter isX is m 3 And (3) the default value of X is 0, the temperature of gas equipment collected by the thermal camera is in the unit of Y and is 0, the gas self-closing valve control signal Z is closed when Z is equal to 0, the gas self-closing valve opening default value is 1 when Z is equal to 1, the gas leakage state recording signals M and M are Boolean values, gas leakage occurs when true, the gas leakage occurs when false, the gas leakage is in a normal state, and the default value of M is false.
If X is greater than 0 and Y is less than 1000, M is set to true and Z is set to 0;
if X is greater than 0 and Y is greater than 1000, M, Z maintains the default value;
if X is equal to 0 and Y is greater than 1000, M is set to 2 and Z is set to 0.
In the data transmission process, the temperature data of the gas using equipment and the gas flow data of the gas meter are floating point type, occupy 4 bytes, and occupy larger data volume. Therefore, the data is amplified 1000 times before being transmitted and then converted into integer data, the integer data occupies 2 bytes, the data quantity is effectively reduced, and the large data monitoring platform scales with the multiplying power of 0.001 after receiving the data.
Example 2
As shown in fig. 3, based on the implementation principle of embodiment 1, another aspect of the present application provides a gas leakage detection method based on an infrared temperature sensing camera, which is implemented based on the gas leakage infrared detection and early warning system, and includes the following steps:
the thermal camera acquires temperature data of gas equipment and uploads the temperature data to the wireless remote transmission gas meter;
the wireless remote transmission gas meter receives the temperature data of the gas utilization equipment, acquires the gas flow data of the gas utilization equipment, and sends the temperature data and the gas flow data of the gas utilization equipment to the big data monitoring platform;
the big data monitoring platform receives the temperature data and the gas flow data of the gas equipment, processes and analyzes the temperature data and the gas flow data according to a preset gas leakage judging algorithm, judges whether gas leakage exists or not, and judges whether to send out a gas leakage signal according to a judging result:
if the gas leakage signal is sent, the gas leakage signal is respectively sent to a gas self-closing valve and an early warning information receiving terminal;
if the gas leakage signal is not sent, the judgment is ended, and the next round of judgment is waited.
As an optional embodiment of the present application, optionally, the big data monitoring platform receives temperature data and gas flow data of the gas consumption device, and performs processing analysis according to a preset gas leakage judgment algorithm to judge whether the gas leaks, including:
if the wireless remote gas meter detects gas flow data and the thermal camera does not detect a heat source with a corresponding heat value at the gas utilization equipment, judging that the gas is leaked;
if the wireless remote gas meter detects gas flow data and the thermal camera detects that a heat source with a corresponding heat value exists at the gas utilization equipment, judging that the gas is not leaked;
if the wireless remote transmission gas meter does not detect the gas flow data and the thermal camera detects the heat source with the corresponding heat value at the gas utilization equipment, the gas meter judges that the gas meter is accidentally burned.
As an optional embodiment of the present application, optionally, further comprising:
and when the big data monitoring platform judges that the fuel gas leaks, sending a fuel gas leakage signal, and respectively sending the fuel gas leakage signal to the fuel gas self-closing valve and the early warning information receiving terminal.
As an optional embodiment of the present application, optionally, the gas leakage judging algorithm specifically includes:
the gas flow value acquired by the wireless remote transmission gas meter is X, and the unit is m 3 H, X is 0;
the temperature of the gas using equipment collected by the thermal camera is Y, the unit is the temperature, and the default value of Y is 0;
a gas self-closing valve control signal Z, when Z is equal to 0, the gas self-closing valve is closed; when Z is equal to 1, the gas self-closing valve is opened, and the default value of Z is 1;
the gas leakage state records that the signal M, M is a Boolean value, gas leakage occurs when true, the signal M is a normal state when false, and the default value of M is false;
if X is greater than 0 and Y is less than 1000, M is set to true and Z is set to 0;
if X is greater than 0 and Y is greater than 1000, M, Z maintains the default value;
if X is equal to 0 and Y is greater than 1000, M is set to 2 and Z is set to 0.
As an optional implementation manner of the present application, optionally, the gas leakage judging algorithm is preset, and the gas leakage judging algorithm is configured on a big data monitoring platform.
The above flow and the gas leakage judging method are specifically understood by combining the system functions and the functions of each module and the interaction principle of embodiment 1, and are not described in detail in this embodiment.
It should be apparent to those skilled in the art that the implementation of all or part of the above-described embodiments of the method may be implemented by a computer program for instructing relevant hardware, and the program may be stored in a computer readable storage medium, and the program may include the steps of the embodiments of the control methods described above when executed. It will be appreciated by those skilled in the art that implementing all or part of the above-described embodiment methods may be implemented by a computer program for instructing relevant hardware, and the program may be stored in a computer readable storage medium, and the program may include the embodiment flow of each control method as described above when executed. The storage medium may be a magnetic disk, an optical disc, a Read-only memory (ROM), a random access memory (RandomAccessMemory, RAM), a flash memory (flash memory), a hard disk (HDD), or a Solid State Drive (SSD); the storage medium may also comprise a combination of memories of the kind described above.
Example 3
Still further, another aspect of the present application provides a control system, including:
a processor;
a memory for storing processor-executable instructions;
the processor is configured to implement the gas leakage detection method based on the infrared temperature-sensing camera when executing the executable instructions.
Embodiments of the present disclosure control a system that includes a processor and a memory for storing processor-executable instructions. The processor is configured to execute the executable instructions to implement any one of the above gas leakage detection methods based on the infrared temperature-sensing camera.
Here, it should be noted that the number of processors may be one or more. Meanwhile, in the control system of the embodiment of the present disclosure, an input device and an output device may be further included. The processor, the memory, the input device, and the output device may be connected by a bus, or may be connected by other means, which is not specifically limited herein.
The memory is a computer-readable storage medium that can be used to store software programs, computer-executable programs, and various modules, such as: the embodiment of the disclosure relates to a program or a module corresponding to a gas leakage detection method based on an infrared temperature-sensing camera. The processor executes various functional applications and data processing of the control system by running software programs or modules stored in the memory.
The input device may be used to receive an input number or signal. Wherein the signal may be a key signal generated in connection with user settings of the device/terminal/server and function control. The output means may comprise a display device such as a display screen.
The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvement of the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (9)
1. The infrared detection and early warning system for gas leakage is characterized by comprising:
the gas leakage information detection module is used for acquiring gas equipment temperature information and gas flow data through infrared measurement and temperature measurement, and uploading the gas equipment temperature information and the gas flow data to the big data monitoring platform;
the big data monitoring platform is used for acquiring, processing and analyzing temperature information and gas flow data of the gas equipment, judging whether gas leakage exists or not, and respectively transmitting judgment results to the gas self-closing valve and the early warning information receiving terminal;
the gas self-closing valve is used for executing the judging result of the big data monitoring platform on gas leakage, and if the gas leakage is judged, the gas self-closing valve executes closing operation and cuts off gas supply;
the early warning information receiving terminal is used for receiving the gas leakage early warning information sent by the big data monitoring platform when the gas is leaked;
the gas leakage information detection module is in communication connection with the big data monitoring platform, and the gas self-closing valve and the early warning information receiving terminal are respectively in communication connection with the big data monitoring platform.
2. The infrared detection and early warning system for gas leakage according to claim 1, wherein the gas leakage information detection module comprises:
the thermal camera is used for acquiring temperature information of the gas equipment and sending the temperature information of the gas equipment to the wireless remote transmission gas meter;
the wireless remote transmission gas meter is used for collecting the gas flow of the gas equipment and sending the gas flow and the temperature information of the gas equipment to the big data monitoring platform;
the gas equipment is in communication connection with the thermal camera, and the thermal camera is in communication connection with the wireless remote gas meter.
3. The infrared detection and early warning system for gas leakage according to claim 2, characterized by comprising a wireless remote-transmission gas meter:
the gas flow sensor is used for collecting gas flow and sending the gas flow to the DTU data transmission terminal;
and the DTU data transmission terminal is used for sending the gas flow and the temperature information of the gas equipment to the big data monitoring platform.
4. A gas leakage detection method based on an infrared temperature sensing camera, which is implemented based on the gas leakage infrared detection and early warning system described in claim 3, and is characterized by comprising the following steps:
the thermal camera acquires temperature data of gas equipment and uploads the temperature data to the wireless remote transmission gas meter;
the wireless remote transmission gas meter receives the temperature data of the gas utilization equipment, acquires the gas flow data of the gas utilization equipment, and sends the temperature data and the gas flow data of the gas utilization equipment to the big data monitoring platform;
the big data monitoring platform receives the temperature data and the gas flow data of the gas equipment, processes and analyzes the temperature data and the gas flow data according to a preset gas leakage judging algorithm, judges whether gas leakage exists or not, and judges whether to send out a gas leakage signal according to a judging result:
if the gas leakage signal is sent, the gas leakage signal is respectively sent to a gas self-closing valve and an early warning information receiving terminal;
if the gas leakage signal is not sent, the judgment is ended, and the next round of judgment is waited.
5. The method for detecting gas leakage based on an infrared temperature-sensing camera according to claim 4, wherein the big data monitoring platform receives temperature data of the gas equipment and gas flow data, and performs processing analysis according to a preset gas leakage judging algorithm to judge whether gas leakage exists, comprising:
if the wireless remote gas meter detects gas flow data and the thermal camera does not detect a heat source with a corresponding heat value at the gas utilization equipment, judging that the gas is leaked;
if the wireless remote gas meter detects gas flow data and the thermal camera detects that a heat source with a corresponding heat value exists at the gas utilization equipment, judging that the gas is not leaked;
if the wireless remote transmission gas meter does not detect the gas flow data and the thermal camera detects the heat source with the corresponding heat value at the gas utilization equipment, the gas meter judges that the gas meter is accidentally burned.
6. The method for detecting gas leakage based on an infrared temperature-sensing camera according to claim 5, further comprising:
and when the big data monitoring platform judges that the fuel gas leaks, sending a fuel gas leakage signal, and respectively sending the fuel gas leakage signal to the fuel gas self-closing valve and the early warning information receiving terminal.
7. The method for detecting gas leakage based on the infrared temperature-sensing camera according to claim 5, wherein the gas leakage judging algorithm specifically comprises the following steps:
the gas flow value acquired by the wireless remote transmission gas meter is X, and the unit is m 3 H, X is 0;
the temperature of the gas using equipment collected by the thermal camera is Y, the unit is the temperature, and the default value of Y is 0;
a gas self-closing valve control signal Z, when Z is equal to 0, the gas self-closing valve is closed; when Z is equal to 1, the gas self-closing valve is opened, and the default value of Z is 1;
the gas leakage state records that the signal M, M is a Boolean value, gas leakage occurs when true, the signal M is a normal state when false, and the default value of M is false;
if X is greater than 0 and Y is less than 1000, M is set to true and Z is set to 0;
if X is greater than 0 and Y is greater than 1000, M, Z maintains the default value;
if X is equal to 0 and Y is greater than 1000, M is set to 2 and Z is set to 0.
8. The method for detecting gas leakage based on an infrared temperature-sensing camera according to claim 7, wherein the gas leakage judging algorithm is preset and is configured on a big data monitoring platform.
9. A control system, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to implement the infrared temperature-sensitive camera-based gas leak detection method of any one of claims 4 to 8 when executing the executable instructions.
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| CN117267632A (en) * | 2023-11-21 | 2023-12-22 | 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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| CN117267632A (en) * | 2023-11-21 | 2023-12-22 | 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 |
| 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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