CN117213766A - Gas leakage detection system, control method, electronic equipment and readable medium - Google Patents
Gas leakage detection system, control method, electronic equipment and readable medium Download PDFInfo
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
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Abstract
The application discloses a gas leakage detection system, which comprises: the detection chamber is provided with a containing cavity and an air inlet and an air outlet which are communicated with the outside of the containing cavity; the detection sensor is arranged in the detection chamber and is used for monitoring the target leakage gas and detecting information change of the target leakage gas; the sampling pipeline comprises P sampling pipes which are communicated with the air inlet, and the sampling pipes collect gas from the corresponding areas to be detected, wherein P is more than or equal to 2; the air extracting device is communicated with the air outlet; and P on-off control parts, which are used for controlling the on-off of the corresponding sampling pipes. A control method of the gas leakage detection system, electronic equipment and readable media related to the control method are also disclosed. The application can be applied to detect the area of leakage target gas and simultaneously remarkably reduce the cost.
Description
Technical Field
The application belongs to the technical field of gas leakage detection, and particularly relates to a gas leakage detection system, a control method, electronic equipment and a readable medium.
Background
With the rapid development of economy, the number of high-rise buildings, large commercial spaces and complexes is rapidly increased, and in order to ensure the safety of the places, leakage detection of various flammable, explosive, toxic and harmful gases is required; in addition, in special places such as chemical plant areas, research laboratories, underground garages and the like, once gas leakage occurs, fire and explosion can be caused, and serious threat is formed to personnel safety. Therefore, in recent years, the demand for indoor gas leakage detection has been increasing.
Devices for implementing gas leakage detection in the related art generally need to install detection sensors in each to-be-detected area respectively to implement leakage detection and locate a position where leakage occurs, and such devices have a problem of high cost, thus causing the problem that the devices are difficult to popularize and use on a large scale.
Disclosure of Invention
The present application aims to solve one of the technical problems in the related art to a certain extent. To this end, the application provides a gas leakage detection system, a control method, an electronic device and a readable medium.
In order to achieve the above purpose, the application adopts the following technical scheme: a gas leak detection system, the gas leak detection system comprising:
the detection chamber is provided with a containing cavity and an air inlet and an air outlet which are communicated with the outside of the containing cavity;
a detection sensor provided in the detection chamber, the detection sensor being configured to monitor a target leak gas and detect a change in information of the target leak gas;
the sampling pipeline comprises P sampling pipes which are communicated with the air inlet, and the sampling pipes collect gas from the corresponding areas to be detected, wherein P is more than or equal to 2;
the air extracting device is communicated with the air outlet; the method comprises the steps of,
and P on-off control pieces which are used for controlling the on-off of the corresponding sampling pipes.
The application of the application has the following beneficial effects: the on-off control part can selectively control the on-off of part or all of the sampling pipes, and when the detection sensor detects the target leakage gas, the part of the sampling pipes can be kept communicated with the detection chamber, and the other part of the sampling pipes are separated from the detection chamber, so that only a part of gas in the region to be detected is collected and enters the detection chamber. Because the acquisition range changes, whether the target leakage gas exists in the part of the region to be detected or not can cause the information of the target leakage gas in the detection chamber to change, and the region to be detected, which leaks out of the target leakage gas, can be determined through the change, namely the position of a leakage source is found. Therefore, for a plurality of areas to be detected, only one or a small number of detection sensors are required to be arranged in the detection chamber, compared with the scheme that the detection sensors are required to be arranged in each area to be detected in the related art, the cost can be obviously reduced, the large-scale popularization and use are convenient, and the potential safety hazard is effectively reduced.
Optionally, the information of the target leakage gas is target leakage gas concentration information.
Optionally, the sampling pipeline further includes a collecting pipe, one collecting pipe corresponds to a plurality of sampling pipes, the sampling pipes are all communicated with the corresponding collecting pipe, and the collecting pipe is communicated with the air inlet.
Optionally, the on-off control member is disposed in the sampling tube.
Optionally, the on-off control piece is an electric opening-closing piece or an electric control valve.
Optionally, the target leakage gas is hydrogen, a plurality of sampling tubes are arranged in one region to be detected, and the plurality of sampling tubes are arranged above the region to be detected in a matrix shape.
In addition, the application also provides a control method for controlling the operation of the gas leakage detection system according to any one of the above technical schemes, the control method comprising:
controlling P sampling pipes to be communicated with the detection chamber;
acquiring gas data detected in the detection chamber;
under the condition that the target leakage gas is detected in the detection chamber, a control part of the sampling tube is communicated with the detection chamber, so that the information of the target leakage gas in the detection chamber is changed;
and determining leakage states of the P areas to be detected according to the change, wherein the leakage states comprise a non-leakage state and a leaked state.
The control method provided by the application is similar to the reasoning process of the beneficial effects of the gas leakage detection system, and is not repeated here.
Optionally, the P on-off control members respectively have number information representing position information of the to-be-detected area corresponding to the on-off control members、/>···/>The control part is communicated with the detection chamber, and the leakage state of the P areas to be detected is determined according to the change, and the method comprises the following steps:
in step S100, the number information of the on-off control member corresponding to the to-be-detected area in the to-be-determined state is formed into a to-be-determined set, and then step S200 is performed; in step S200, the set to be confirmed is divided into a first group to be detected including m number information and a second group to be detected including n number information, and then steps S300 and S400 are performed, respectively, wherein,，/>；
in step S300, the on-off control member in the first to-be-detected group is connected to the detection chamber, the on-off control member in the second to-be-detected group is disconnected from the detection chamber, and then step S500 is performed;
in step S400, the on-off control member in the first to-be-detected group is disconnected from the detection chamber, the on-off control member in the second to-be-detected group is connected to the detection chamber, and then step S500 is performed;
in step S500, information of the target leakage gas in the detection chamber is acquired;
under the condition that the information of the target leaked gas is not larger than a set threshold value, determining the state of the area to be detected corresponding to the on-off control piece conducted with the detection chamber as a non-leaked state; otherwise, the number information of the on-off control pieces conducted with the detection chamber is recombined into a set to be confirmed, and step S200 is performed until the number of the on-off control pieces conducted with the detection chamber is 1.
Optionally, the number of the number information of the on-off control pieces corresponding to the to-be-detected area of the state to be determined is i,when i is even, < > is given>The method comprises the steps of carrying out a first treatment on the surface of the When i is odd, & gt>，/>。
The application also provides an electronic device, comprising:
one or more processors;
a memory having one or more computer programs stored thereon, which when executed by the one or more processors cause the one or more processors to implement the control method as set forth in any one of the preceding claims.
Meanwhile, the present application also provides a computer-readable medium having stored thereon a computer program which, when executed by a processor, implements the control method of any one of the above.
These features and advantages of the present application will be disclosed in more detail in the following detailed description and the accompanying drawings. The best mode or means of the present application will be described in detail with reference to the accompanying drawings, but is not limited to the technical scheme of the present application. In addition, these features, elements, and components are shown in plural in each of the following and drawings, and are labeled with different symbols or numerals for convenience of description, but each denote a component of the same or similar construction or function.
Drawings
The application is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of one embodiment of a gas leak detection system provided by the present application;
FIG. 2 is a schematic diagram of another embodiment of a gas leak detection system provided by the present application;
FIG. 3 is a flow chart of one embodiment of a control method provided by the present application;
FIG. 4 is a schematic block diagram of an embodiment of an electronic device according to the present application;
fig. 5 is a schematic block diagram of a computer readable medium according to the present application.
The system comprises a detection chamber 1, an air inlet 10, an air outlet 11, a detection sensor 2, a sampling pipeline 3, a sampling pipe 30, a collecting pipe 31, an on-off control 4, an air extracting device 5, a control unit 6, a detection area 7, a processor 102, a memory 103, an I/O interface 104 and a bus.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The examples in the embodiments are intended to illustrate the present application and are not to be construed as limiting the present application.
Reference in the specification to "one embodiment" or "an example" means that a particular feature, structure, or characteristic described in connection with the embodiment itself can be included in at least one embodiment of the disclosure. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment.
A first aspect of the present application provides a gas leakage detection system, as shown in fig. 1 and 2, comprising a detection chamber 1, a detection sensor 2, a sampling pipe 3, an air extraction device 5, and P on-off controls 4, wherein the detection chamber 1 is formed with a cavity and is provided with an air inlet 10 and an air outlet 11 that communicate the cavity with the outside. The detection sensor 2 is arranged in the detection chamber 1, and the detection sensor 2 is used for monitoring target leakage gas and detecting information change of the target leakage gas, wherein the target leakage gas can be inflammable and explosive or poisonous and harmful gas such as hydrogen, carbon monoxide or methane. The sampling pipe 3 includes P sampling pipes 30 communicating with the gas inlet 10, and the sampling pipes 30 collect gas from the region 7 to be detected corresponding thereto, wherein P is not less than 2. The air extractor 5 is arranged at the air outlet 11, and negative pressure is formed in the detection chamber 1 through the air extractor 5, so that the gas in the area to be detected is absorbed into the detection chamber 1 through the sampling pipeline 3. P on-off control members 4 for controlling on-off of the corresponding sampling tube 30. The detection of the target leakage gas refers to monitoring whether the target leakage gas exists in the detection chamber 1 by the detection sensor 2, and the information change of the detection target leakage gas refers to that when the detection chamber 1 is monitored to exist, the information of the target leakage gas in the detection chamber 1 is correspondingly changed after the on/off control part 4 controls the on/off of the part of the sampling pipe 30 and the off of the part of the sampling pipe 30, and the change can be detected by the detection sensor 2. For example, assuming that the gas leak detection system is used to detect whether or not there is a hydrogen leak in the region to be detected 7, the detection sensor 2 may use a hydrogen sensor.
The area 7 to be detected may be a high-rise building, a large commercial space or complex, or a chemical plant area, a research laboratory, an underground garage, etc.
When the detection sensor 2 detects the target leakage gas, a part of the sampling pipe 30 can be controlled to be communicated with the detection chamber 1, and the other part of the sampling pipe 30 is isolated from the detection chamber 1, so that only a part of gas in the region to be detected enters the detection chamber 1. Because the acquisition range changes, whether the target leakage gas exists in the part of the region to be detected or not can cause the information of the target leakage gas in the detection chamber 1 to change, and the region to be detected of the target leakage gas can be determined through the change, namely the position of the leakage source is found. Therefore, for a plurality of areas to be detected, only one or a small number of detection sensors 2 are required to be arranged in the detection chamber 1, compared with the scheme that the detection sensors 2 are required to be arranged in each area to be detected in the related art, the cost can be obviously reduced, the large-scale popularization and the use are convenient, and the potential safety hazard is effectively reduced.
In an alternative embodiment, the information of the target leak gas is target leak gas concentration information. The principle is described as follows: when the presence of the target leaking gas in the detection chamber is detected, the presence of the leak in the area to be detected is indicated, and then the leak position of the target leaking gas needs to be quickly determined. A part of on-off control pieces are controlled to be disconnected, and the other part of on-off control pieces are kept to be connected, so that the duty ratio of target leakage gas in gas entering the detection chamber is reduced if no leakage exists in a region to be detected corresponding to the sampling pipe kept to be connected with the detection chamber, and further concentration information of the target leakage gas in the detection chamber is reduced; otherwise, the concentration information of the target leak gas in the detection chamber is raised. In this way, a specific leak location can be determined by a change in the concentration information of the target leak gas.
The sampling pipe 3 in the gas leakage detecting system further comprises a collecting pipe 31, one collecting pipe 31 is correspondingly provided with a plurality of sampling pipes 30, the sampling pipes 30 are communicated with the corresponding collecting pipes 31, and the collecting pipe 31 is communicated with the gas inlet 10. The advantage of this arrangement is that the number of air inlets 10 in the detection chamber 1 can be reduced, the overall length of the pipeline can be reduced, the cost can be reduced, and the arrangement on site can be facilitated. In this embodiment, a collecting pipe 31 and a plurality of sampling pipes 30 are provided, all the sampling pipes 30 are communicated with the collecting pipe 31, and in other alternative modes, a plurality of collecting pipes can be provided, and each collecting pipe is correspondingly communicated with a part of all the sampling pipes. Of course, each sampling tube may be directly connected to the detection chamber without providing a manifold.
In this embodiment, the on-off control member 4 is disposed in the sampling tube 30, and specifically, the on-off control member 4 is an electric on-off plate, which is convenient for electric control on-off. In alternative embodiments, the on-off control may also be provided in the manifold near the location of communication with the corresponding sampling tube, and in addition, the on-off control may be an electronically controlled valve.
The gas leakage detection system shown in fig. 1 and 2 is shown in different application scenarios, and the gas leakage detection system shown in fig. 1 is suitable for a situation that the space of the area to be detected is small, and one sampling tube 30 is arranged in each area to be detected, for example, each room in a building, or each merchant in a market, etc. The gas leakage detecting system shown in fig. 2 is suitable for the situation that the space of the area to be detected is large, a plurality of sampling pipes 30 are arranged in one area to be detected, and the collecting ports of each sampling pipe 30 are arranged at different positions, such as underground garages, chemical plants and the like. Not only the space of the region to be detected but also the own characteristics of the target leaking gas need to be considered when arranging the sampling tube 30. For example, if the target leaking gas is hydrogen gas, since the hydrogen gas is characterized by an extremely low density, it rapidly diffuses upward if a leak occurs, and accordingly, the sampling tube 30 can be disposed on the top of the area to be detected, such as the ceiling directly above the corresponding tube in the room in the building, so that the target leaking gas can be collected in a timely manner.
In addition, when the target leaking gas is hydrogen, for the case where the space of the area to be detected is large as shown in fig. 2, the arrangement position of the sampling tube can also be designed, and it is more advantageous to accelerate the speed of determining the leaking position when the leakage occurs. Specifically, in the case where the target leak gas is hydrogen gas, a plurality of sampling tubes are arranged in one region to be detected, and the plurality of sampling tubes are arranged in a matrix above the region to be detected. As previously mentioned, hydrogen gas has the characteristic of extremely low density, and can rapidly diffuse upwards after leakage, so that the hydrogen gas enters the sampling pipe above the hydrogen gas and flows to the detection chamber through the sampling pipe.
As shown in fig. 3, a second aspect of the present application provides a control method for controlling the operation of the gas leakage detection system provided in the first aspect of the present application, the control method comprising:
in step S100, P sampling tubes 30 are controlled to be all in communication with the detection chamber 1;
in step S200, the gas data detected in the detection chamber 1 is acquired;
in step S300, in the case where the target leak gas is detected in the detection chamber 1, the control portion sampling tube 30 is conducted with the detection chamber 1 so that the information of the target leak gas in the detection chamber 1 is changed;
in step S400, the leakage states of the P regions to be detected are determined according to the change, and the leakage states include a non-leakage state and a leaked state.
Specifically, in step S200, the gas data in the detection chamber 1 is acquired by the detection sensor 2. In step S300 and step S400, the P on-off control members 4 have number information representing position information of the region to be detected corresponding thereto, respectively、/>···/>The control part of the sampling tube 30 is communicated with the detection chamber 1, and the leakage state of the P areas to be detected is determined according to the change, and the method specifically comprises the following steps:
in step S310, forming a to-be-confirmed set by the number information of the on-off control piece 4 corresponding to the to-be-detected area in the to-be-determined state, and then performing step S320; for ease of understanding, in this embodiment, eight merchants in the mall are taken as the areas to be detected, each merchant is taken as one area to be detected, and a sampling tube 30 is disposed in each area to be detected. Correspondingly, the number of the on-off control pieces 4 is eight, and the number information of the eight on-off control pieces 4 is respectively、/>···. Proceeding to this step, it has been determined that a leak condition exists, the current objective being to find the leak location from the eight areas to be detected. Specifically, in this step +.>、/>···/>Eight numbered information form the set to be confirmed.
In step S320, the set to be confirmed is divided into a first group to be detected including m number information and a second group to be detected including n number information, and then steps S330 and S340 are performed, respectively, wherein,，the method comprises the steps of carrying out a first treatment on the surface of the In the present embodiment, the eight number information are divided into two groups, wherein +_in the first detection and judgment>To->For the first group to be tested->To->Is a second group to be detected;
in step S330, the on-off control member 4 of the first group to be detected is turned on with the detection chamber 1, the on-off control member 4 of the second group to be detected is turned off with the detection chamber 1, and then step S410 is performed;
in step S340, the on-off control member 4 of the first group to be detected is disconnected from the detection chamber 1, the on-off control member 4 of the second group to be detected is connected to the detection chamber 1, and then step S410 is performed;
in step S410, information of the target leak gas in the detection chamber 1 is acquired;
the logic for making the determination is as follows: in the case where the information of the target leaking gas is not greater than the set threshold value, the state of the area to be detected corresponding to the on-off control 4 that is conducted with the detection chamber 1 is determined as the non-leaking state. Therefore, the possibility of leakage of four areas to be detected can be eliminated in one judgment, and the other four areas to be detected only need to be judged. The set threshold value described herein is related to factors such as the volume of the detection chamber, the power of the air extractor, and the number of sampling tubes connected to the detection chamber, and may be set according to actual conditions, for example, when the information of the target leakage gas is gas concentration information, the set threshold value may be a selected value between 0 and 1%. The principle is described as follows: when the detection chamber is small or the power of the air extraction device is large or the number of sampling pipes communicated with the detection chamber is small, the air extraction device can rapidly discharge the gas flowing into the detection chamber from the sampling pipes (in other words, the gas in the detection chamber is updated rapidly), and if no leakage occurs in the region to be detected corresponding to the on-off control piece 4 communicated with the detection chamber during judgment, the concentration of the target leaked gas in the detection chamber is rapidly reduced to be close to 0 or reaches 0. For example, an electric opening and closing plate can be also arranged at the air inlet of the detection chamber, before the detection is carried out again, the air in the detection chamber is rapidly emptied through an air extractor, the electric opening and closing plate is opened again, the detection is carried out afterwards, and if no leakage occurs in the area to be detected corresponding to the on-off control piece 4 communicated with the detection chamber, the concentration of the target leakage air in the detection chamber is 0. Therefore, when the information of the target leaked gas is smaller than the set threshold value, the state of the area to be detected corresponding to the on-off control member 4 conducted with the detection chamber can be determined as not leaked, and the judgment speed is very high.
Otherwise, the number information of the on-off control pieces 4 conducted with the detection chamber 1 is reorganized into a set to be confirmed and step S320 is performed until the number of the on-off control pieces 4 conducted with the detection chamber 1 is 1. The meaning of the judgment is as follows: if the information of the target leaked gas exceeds the set threshold value, at least one to-be-detected area in the four to-be-detected areas corresponding to the on-off control piece 4 conducted with the detection chamber is leaked, and the four to-be-detected areas need to be judged again. In this way, the number information of the on-off control members 4 corresponding to the four areas to be detected requiring the state to be confirmed is rearranged into the set to be confirmed, and step S320 is performed again to perform the judgment once again. Until the number of the on-off control pieces 4 conducted with the detection chamber 1 is 1, the on-off control pieces 4 are not required to be grouped any more, and the state of the area to be detected corresponding to the on-off control pieces 4 conducted with the detection chamber 1 at the moment can be directly obtained to be the leaked state.
In a common case, a single area to be detected leaks, for example, one area of eight areas to be detected leaks, so that four areas to be detected can be eliminated when the judgment is performed for the first time, two areas to be detected are eliminated when the judgment is performed for the second time, and the area to be detected with the leakage can be determined when the judgment is performed for the third time. In extreme cases, there are precisely several leak points simultaneously in the eight areas to be detected, in which case more determinations need to be made to determine all leak points.
In this embodiment, for convenience of description, the number information of the on-off control is described according to the sequence when the number information is grouped, but the number information is not required to be grouped according to the sequence of the numbers when the on-off control is actually used. In addition, in the above process, the to-be-detected area of the leak state to be confirmed is divided into two groups each time the determination is made, but in different embodiments, the to-be-detected area of the leak state to be confirmed may be divided into other groups, for example, three groups, four groups, and so on each time the determination is made.
Further, the number of the number information of the on-off control members 4 corresponding to the area to be detected of the state to be determined is i,when i is even, < > is given>The method comprises the steps of carrying out a first treatment on the surface of the When i is odd, & gt>，/>. This approach may be referred to as "bisection," but in other alternatives the bisection approach described above may be omitted. Taking eight detection areas in the above example as an example, in the first judging process in a binary manner, four on-off control pieces 4 are turned on, and the other four on-off control pieces 4 are turned off. In other alternative embodiments, six of the on-off control members 4 may be turned on, and only the other two on-off control members 4 may be turned off. Such a division has a better effect in some cases: for example, six of the eight merchants in the above example are newly finished, and the other two merchants are operated for many years, in which case, from the aspect of leakage probability, the leakage probability of the six merchants newly finished is lower, and the probability of dividing them into two different groups to be judged with the other two merchants can be fasterThe determination of the leak location is completed.
As shown in fig. 4, a third aspect of the present application provides an electronic device including:
one or more processors 101;
a memory 102 having one or more computer programs stored thereon, which when executed by the one or more processors 101, cause the one or more processors 101 to implement a control method according to the second aspect of the present application.
The electronic device may further comprise one or more I/O interfaces coupled between the processor 101 and the memory 102 configured to enable information interaction of the processor 101 with the memory 102.
Wherein the processor 101 is a device having data processing capabilities, including but not limited to a central processing unit, CPU, or the like; the first memory is a device with data storage capability, which includes but is not limited to Random Access Memory (RAM), more specifically SDRAM, DDR, etc., read-only memory (ROM), charged erasable programmable read-only memory (EEPROM), FLASH FLASH; the I/O interface read/write interface is connected between the processor 101 and the memory 102, and can implement information interaction between the processor 101 and the memory 102, which includes, but is not limited to, a data Bus, and the like.
In some embodiments, processor 101, memory 102, and I/O interfaces are interconnected via a bus, which in turn is connected to other components of the computing device.
As shown in fig. 1 or 2, the gas leakage detecting system according to the first aspect of the present application may further be provided with a control unit 6, and the electronic device according to the third aspect of the present application may be provided in the control unit 6, so that the operation of the gas leakage detecting system is automatically controlled by the control unit 6. It is to be understood that, in an alternative embodiment, the on-off control member 4 may be controlled to be opened or closed according to the data of the detection sensor 2 by means of manual field control, and the leakage condition may be determined and the leakage position may be determined.
As shown in fig. 5, as a fourth aspect of the present application, there is provided a computer-readable medium having stored thereon a computer program which, when executed by a processor, implements the control method provided by the first aspect of the present disclosure.
Those skilled in the art will appreciate that implementing all or part of the processes in the methods of the embodiments described above may be accomplished by computer programs to instruct related hardware. Accordingly, the computer program may be stored in a non-volatile computer readable storage medium, which when executed, performs the method of any of the above embodiments. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The above is only a specific embodiment of the present application, but the scope of the present application is not limited thereto, and it should be understood by those skilled in the art that the present application includes but is not limited to the accompanying drawings and the description of the above specific embodiment. Any modifications which do not depart from the functional and structural principles of the present application are intended to be included within the scope of the appended claims.
Claims (11)
1. A gas leak detection system, the gas leak detection system comprising:
a detection chamber (1) which is provided with a cavity and is provided with an air inlet (10) and an air outlet (11) which communicate the cavity with the outside;
a detection sensor (2) provided in the detection chamber (1), the detection sensor (2) being configured to monitor a target leak gas and detect a change in information of the target leak gas;
a sampling pipeline (3) comprising P sampling pipes (30) communicated with the air inlet (10), wherein the sampling pipes (30) collect gas from a region to be detected corresponding to the sampling pipes, and P is more than or equal to 2;
an air extraction device (5) which is communicated with the air outlet (11); the method comprises the steps of,
p on-off control pieces (4) are used for controlling the on-off of the corresponding sampling pipes (30).
2. The gas leak detection system as defined in claim 1, wherein the information of the target leak gas is target leak gas concentration information.
3. The gas leakage detection system according to claim 1, wherein said sampling pipe (3) further comprises a collecting pipe (31), one of said collecting pipes (31) being provided with a plurality of said sampling pipes (30), said sampling pipes (30) each being in communication with a respective one of said collecting pipes (31), said collecting pipe (31) being in communication with said gas inlet (10).
4. A gas leakage detection system according to claim 1 or 3, wherein said on-off control (4) is arranged in said sampling tube (30).
5. The gas leakage detection system according to claim 1, wherein the on-off control member (4) is an electric on-off plate or an electric control valve.
6. The gas leakage detection system according to claim 1, wherein said target leakage gas is hydrogen gas, a plurality of said sampling tubes are arranged in one of said areas to be detected, and a plurality of said sampling tubes are arranged in a matrix above said area to be detected.
7. A control method for controlling operation of the gas leak detection system according to any one of claims 1 to 6, the control method comprising:
controlling P sampling pipes (30) to be communicated with the detection chamber (1);
acquiring gas data detected in the detection chamber (1);
in the case that the target leakage gas is detected in the detection chamber (1), a control part of the sampling tube (30) is communicated with the detection chamber (1) so as to change the information of the target leakage gas in the detection chamber (1);
and determining leakage states of the P areas to be detected according to the change, wherein the leakage states comprise a non-leakage state and a leaked state.
8. The control method according to claim 7, wherein the P on-off control members (4) each have number information representing position information of a region to be detected corresponding thereto、/>···/>The control part is communicated with the detection chamber (1) by the sampling pipe (30), and the leakage state of the P areas to be detected is determined according to the change, and the control part comprises the following steps:
in step S100, the number information of the on-off control member (4) corresponding to the to-be-detected area in the to-be-determined state is formed into a to-be-determined set, and then step S200 is performed;
in step S200, the set to be confirmed is divided into a first group to be detected including m number information and a second group to be detected including n number information, and then steps S300 and S400 are performed, respectively, wherein,，；
in step S300, the on-off control member (4) of the first to-be-detected group is connected to the detection chamber (1), the on-off control member (4) of the second to-be-detected group is disconnected from the detection chamber (1), and then step S500 is performed;
in step S400, the on-off control member (4) in the first to-be-detected group is disconnected from the detection chamber (1), the on-off control member (4) in the second to-be-detected group is connected to the detection chamber (1), and then step S500 is performed;
in step S500, information of the target leak gas in the detection chamber (1) is acquired;
under the condition that the information of the target leaked gas is not larger than a set threshold value, determining the state of a region to be detected corresponding to an on-off control piece (4) conducted with the detection chamber (1) as a non-leaked state; otherwise, the number information of the on-off control pieces (4) conducted with the detection chamber (1) is recombined into a set to be confirmed, and the step S200 is performed until the number of the on-off control pieces (4) conducted with the detection chamber (1) is 1.
9. The control method according to claim 8, wherein the number of the number information of the on-off control members (4) corresponding to the area to be detected of the state to be determined is i,when i is even, < > is given>The method comprises the steps of carrying out a first treatment on the surface of the When i is an odd number, it is,，/>。
10. an electronic device, comprising:
one or more processors (101);
memory (102) having stored thereon one or more computer programs which, when executed by the one or more processors (101), cause the one or more processors (101) to implement the control method of any of claims 7 to 9.
11. A computer readable medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor (101), implements the control method according to any one of claims 7 to 9.
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