Portable gas alarm detection device, method and system

Abstract

The invention relates to the field of instrument detection, in particular to a portable gas alarm detection device, method and system. The method comprises the steps that a monitoring module and a gas distribution module are placed in a cover container, a power supply module is placed in a connecting rod, the size of the gas alarm detection device is greatly reduced, the cover container of the gas alarm detection device covers an alarm to be detected, and therefore a closed space is formed around the alarm to be detected; and then high-pressure and high-purity gas in the gas cylinder is transmitted into the closed space, so that the required gas concentration is rapidly configured in the closed space, the gas alarm function of the detected alarm is tested, a detection record is automatically formed through special software, manual participation is avoided, and the authenticity of the test record is ensured. Namely, on the premise that whether the gas alarm is in the normal working state or not can be normally detected, the gas alarm detection device is more convenient for detection personnel to carry.

Description

Technical Field

[0001] The present application relates to the field of instrument detection, and in particular to a portable gas alarm detection device, method and system. Background Art

[0002] In modern urban life, gas is one of the main energy sources and is widely used in households, businesses and industries. However, gas leakage may lead to serious safety accidents, such as fire and explosion, which seriously threaten people's lives and property. Therefore, gas alarms, as an important safety device, are widely used in various gas-using places to detect gas leaks and sound alarms.

[0003] Gas alarms are usually installed on the side walls or roofs of kitchens in residents' homes. They detect the gas concentration in the surrounding environment through built-in sensors. Once a gas leak is detected and exceeds the preset threshold, the gas alarm will immediately sound an audible and visual alarm to remind people to take necessary emergency measures. In order to ensure the normal operation of the gas alarm, testers will regularly bring special testing instruments to test the gas alarm to determine whether the gas alarm is still in normal use.

[0004] However, the alarm detectors currently disclosed have a complex structure, generally including a gas distribution detection instrument, a matching gas cylinder unit, a calibration container and a charger. Therefore, when inspectors conduct home inspections, they need to carry a large gas alarm detector, which is inconvenient for inspectors to carry. Summary of the invention

[0005] In order to improve the portability and efficiency of gas alarm detection instruments, the present application provides a portable gas alarm detection device, method and system.

[0006] In the first aspect, the present application provides a portable gas alarm detection device, which adopts the following technical solution: A portable gas alarm detection device, the portable gas alarm detection device comprising: A cover container, used for covering the alarm to be detected; A gas cylinder connected to the cover container through a gas transmission pipeline, and used to store high-pressure high-purity gas consistent with the gas type detected by the alarm to be detected, wherein one gas cylinder corresponds to one high-pressure high-purity gas, and the high-pressure high-purity gas is one of methane, propane, hydrogen, and carbon monoxide; A monitoring module, located in the cover container, is used to check the gas concentration of the gas alarmed by the alarm to be detected inside the cover container and the alarm status of the alarm to be detected, and is used to control the test device to detect the gas concentration inside the cover container; A gas distribution module, located in the cover container, is used to control the delivery and stirring of the gas in the gas cylinder; A connecting rod is connected to the bottom of the cover container, and a power supply module is installed inside the connecting rod to supply power to the monitoring module and the gas distribution module.

[0007] By adopting the above technical scheme, by placing the monitoring module and the gas distribution module in the cover container, and placing the power supply module in the connecting rod, the volume of the gas alarm detection device is greatly reduced. At the same time, the detection personnel can cover the alarm to be detected located on the side wall or the roof with the cover container of the portable gas alarm detection device by grabbing the connecting rod connected to the bottom of the cover container, thereby forming a closed space around the alarm to be detected, and then the high-pressure and high-purity gas in the gas cylinder is transmitted to the closed space to quickly form a simulated gas leakage scene in the closed space. At the same time, the monitoring module capable of checking the gas concentration inside the cover container is built into the cover container, and there is no need to extract the gas in the cover container to the monitoring controller to measure the gas concentration. After the gas concentration is measured, the extracted gas is transported back to the cover container, which improves the speed of testing the gas concentration inside the cover container, and then by detecting the alarm condition of the alarm to be detected inside the cover container, it is determined whether the alarm to be detected is working normally. That is, the portable gas alarm detection device is easier for detection personnel to carry while ensuring that it can normally detect whether the gas alarm is in a normal working state.

[0008] In a possible implementation, the monitoring module includes: A gas concentration sensor, used to detect the gas concentration in the cover container; A sound detection unit, used to detect whether the alarm to be detected in the cover container emits an alarm sound; The communication unit is used for connecting with a mobile electronic device.

[0009] By adopting the above technical scheme, the gas concentration inside the cover container is monitored by a gas concentration sensor, and the alarm status of the alarm to be detected inside the cover container is detected by a sound detection module to determine whether the alarm to be detected is a normal alarm, thereby improving the accuracy of detecting the alarm status of the portable gas alarm detection device.

[0010] In a possible implementation, the gas distribution module includes: A stirring fan, used to stir the delivered high-pressure and high-purity gas evenly in the cover container; A solenoid valve is used to deliver the gas delivered after decompression to the cover container; The pressure regulating valve is used to maintain a constant gas pressure and flow rate entering the solenoid valve.

[0011] By adopting the above technical solution, the decompressed gas enters the solenoid valve at a constant gas pressure and flow rate, and the solenoid valve transports the decompressed gas to the cover container. The gas in the cover container is evenly stirred by the stirring fan in the gas distribution module to ensure that the measured gas in the cover container is a gas with uniform concentration, thereby ensuring the accuracy of the measured concentration.

[0012] In a possible implementation, the gas distribution module further includes: Image acquisition equipment, used to capture images of the alarm to be detected.

[0013] By adopting the above technical solution, the appearance image and the nameplate image of the alarm to be detected are obtained by photographing with an image acquisition device, and the appearance image and the nameplate image of the alarm to be detected are stored.

[0014] In a second aspect, the present application provides a portable gas alarm detection method, which adopts the following technical solution: A portable gas alarm detection method, the method is applied to the portable gas alarm detection device described in the first aspect above, the method is performed by a mobile electronic device, and the method comprises: Receive a detection instruction and a collection instruction, wherein the detection instruction includes the model of the alarm to be detected, the detection gas, the factory setting value of the detection gas, and the production date, and the collection instruction is used to control the image acquisition device to collect the appearance image and the nameplate image of the alarm to be detected; Determine the detection gas type and detection gas concentration range of the alarm to be detected; Based on the detection gas concentration range, control the gas cylinder to release the detection gas into the enclosed space corresponding to the alarm to be detected; Determine the detection gas concentration corresponding to when the alarm to be detected generates alarm information; Based on the detection gas concentration range and the detection gas concentration, it is determined whether the alarm to be detected is abnormal, and a detection report of the alarm to be detected is automatically generated.

[0015] By adopting the above technical solution, by receiving clear detection instructions (including the model of the alarm to be detected, the detection gas, the factory setting value, the production date, etc.) and the collection instructions, the appearance image and the nameplate image of the alarm to be detected are obtained, and the detection gas type and the gas concentration range that the alarm of this model should detect are determined, thereby avoiding improper configuration or detection range deviation that may be caused by human error in traditional detection methods, and then controlling the gas cylinder to release gas into the confined space, and accurately controlling the concentration of the released gas to perform gas detection in the confined space. The entire detection process, from receiving instructions, determining the detection range, controlling the gas cylinder to release gas, monitoring the alarm information to the final judgment of the alarm status, has realized automated operation, which not only reduces manual intervention and reduces the errors caused by human factors, but also significantly improves the detection efficiency. At the same time, the collected data (such as the information of the photo, the specific location information of the residents, the contact method, and the results automatically generated by the on-site test) are sent to the supervision platform through the remote wireless communication function of the mobile electronic device, and the information is directly and automatically recorded without human participation, reducing human factors, ensuring the authenticity and fairness of the test data, and greatly improving the on-site detection efficiency.

[0016] In a possible implementation, based on the detection gas concentration range, controlling the gas cylinder to release the detection gas into the confined space corresponding to the alarm to be detected includes: Obtaining the theoretical space volume of the confined space corresponding to the alarm to be detected; Based on the detection gas concentration range and the theoretical space volume, determining a minimum release volume corresponding to a minimum detection gas concentration in the detection gas concentration range; The gas cylinder is controlled to release the minimum release volume of gas into the enclosed space corresponding to the alarm to be detected.

[0017] By adopting the above technical solution, by accurately calculating the theoretical space volume and the minimum release volume determined based on the detection gas concentration range, it is possible to ensure that the predetermined minimum detection gas concentration is reached in the confined space, thereby improving the accuracy of detecting whether the gas alarm is abnormal.

[0018] In a possible implementation, after controlling the gas cylinder to release the gas of the minimum release volume into the enclosed space corresponding to the alarm to be detected, the method further includes: receiving a spatial gas concentration within the confined space; Determining the actual spatial volume of the confined space based on the spatial gas concentration and the minimum release volume; Based on the actual space volume, determining a first release volume, the first release volume being the gas volume required to change the space gas concentration in the enclosed space to reach the minimum detected gas concentration; Based on the first released volume, controlling the detection gas concentration in the enclosed space to reach a minimum detection gas concentration; Determine whether the alarm to be detected generates an alarm.

[0019] By adopting the above technical solution, by first releasing a known minimum release volume (reference amount) of gas into the confined space and measuring the resulting spatial gas concentration, the actual volume of the confined space can be accurately calculated, thereby eliminating errors that may be caused by the volume occupied by other modules in the confined space, thereby improving the accuracy of subsequent gas concentration detection and alarm response tests. The first release volume calculated based on the actual space volume is the exact amount of gas required to make the gas concentration in the confined space reach the minimum detection concentration of the alarm, making the test results more reliable.

[0020] In a possible implementation manner, after determining whether the alarm to be detected generates an alarm, the method further includes: If the to-be-detected alarm does not sound an alarm, determining a maximum release volume corresponding to the maximum detection gas concentration in the detection gas concentration range; Based on the maximum release volume, the minimum release volume and the first release volume, determining a second release volume, wherein the second release volume is the gas volume required to change the gas concentration in the confined space to reach the maximum detection gas concentration; Controlling the gas cylinder to release the second release volume into the confined space; Determine whether the alarm to be detected generates an alarm.

[0021] By adopting the above technical solution, by not only testing the response of the alarm at the minimum detected gas concentration, but also testing its response at the maximum detected gas concentration, the performance of the alarm can be fully verified, which helps to ensure that the alarm can work normally within the entire design concentration range and improve the accuracy of detecting whether the gas alarm is abnormal.

[0022] In a possible implementation, controlling the gas cylinder to release the minimum released volume of gas into the enclosed space corresponding to the alarm to be detected includes: Setting internal operating parameters of the portable gas alarm detection device, wherein the internal transport parameters include a minimum released gas volume; Based on the internal operating parameters, the gas cylinder is controlled to release the minimum release volume of gas into the enclosed space corresponding to the alarm to be detected.

[0023] By adopting the above technical solution, by setting and releasing a precise gas volume, it is possible to ensure that the conditions for each test are consistent, thereby eliminating detection errors caused by differences in gas concentration and improving the accuracy and reliability of alarm detection.

[0024] In a third aspect, the present application provides a portable gas alarm detection system, which adopts the following technical solution: A portable gas alarm detection device as described in any one of the first aspects above; A portable electronic device is connected to the portable gas alarm detection device and is used to control the operation of the portable gas alarm detection device, so that the portable gas alarm detection device itself does not require complicated display and operation buttons, which reduces the weight of the equipment while also reducing costs and realizing automatic management of the detection process.

[0025] In a possible implementation, the mobile electronic device includes: at least one processor; Memory; At least one application, wherein the at least one application is stored in a memory and configured to be executed by at least one processor, and the at least one application is configured to: execute the portable gas alarm detection method described in any one of the second aspects above.

[0026] In summary, the present application includes the following beneficial technical effects: the monitoring module and the gas distribution module are placed in the cover container, and the power supply module is placed in the connecting rod, which greatly reduces the volume of the gas alarm detection device. At the same time, the detection personnel can cover the alarm to be detected located on the side wall or the roof with the cover container of the portable gas alarm detection device by grabbing the connecting rod connected to the bottom of the cover container, thereby forming a closed space around the alarm to be detected, and then the high-pressure and high-purity gas in the gas cylinder is transmitted to the closed space to form a simulated gas leakage scene in the closed space. At the same time, the monitoring module that can check the gas concentration inside the cover container is built into the cover container, and there is no need to draw the gas in the cover container to the monitoring controller to measure the gas concentration. After the gas concentration is measured, the extracted gas is transported back to the cover container, which improves the speed of testing the gas concentration inside the cover container, and then by detecting the alarm condition of the alarm to be detected inside the cover container, it is determined whether the alarm to be detected is working normally. That is, the portable gas alarm detection device is easier for detection personnel to carry and shortens the testing time while ensuring that the gas alarm can be normally detected whether it is in a normal working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a portable gas alarm detection device provided in an embodiment of the present application; Figure 2 is a block diagram of a monitoring module provided in an embodiment of the present application; Figure 3is a block diagram of a gas distribution module provided in an embodiment of the present application; Figure 4 It is a flow chart of a portable gas alarm detection method provided in an embodiment of the present application; Figure 5 It is a block diagram of a portable gas alarm detection system provided in an embodiment of the present application.

[0028] Explanation of the reference numerals: 100, portable gas alarm detection device; 110, cover container; 120, gas cylinder; 121, pressure reducing valve; 130, monitoring module; 140, gas distribution module; 150, connecting rod; 160, power supply module; 170, gas transmission pipeline; 131, gas concentration sensor; 132, sound detection unit; 133, communication unit; 134, pressure sensor; 135, temperature sensor; 136, humidity sensor; 137, laser / infrared gas concentration sensor; 141, pressure regulating valve; 142, solenoid valve; 143, stirring fan; 144, image acquisition device; 151, charging interface; 510, portable electronic device. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1 -Attached Figure 5 This application is described in further detail.

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] In order to facilitate understanding of the technical solution proposed in this application, several elements introduced in the description of this application are first introduced here. It should be understood that the following introduction is only for the convenience of understanding these elements, so as to understand the content of the embodiments of this application, and does not necessarily cover all possible situations.

[0032] Existing gas filling detection devices generally include a gas cylinder, a gas pipe and a release device. The gas in the gas cylinder is released and transported to the space to be detected through the gas pipe to release the gas detected by the gas alarm and form a certain concentration of gas in the space to be detected. The corresponding alarm time of the gas alarm is determined to judge whether the alarm time and alarm concentration value of the gas alarm meet the working requirements, thereby determining that the detection function of the gas alarm can operate normally.

[0033] Gas alarms are usually installed on the side walls or roofs of kitchens in residents' homes. They detect the gas concentration in the surrounding environment through built-in sensors. Once a gas leak is detected and exceeds the preset threshold, the gas alarm will immediately sound an audible and visual alarm to remind people to take necessary emergency measures. In order to ensure the normal operation of the gas alarm, inspection personnel will generally come to the door with professional inspection instruments to inspect the gas alarm regularly to ensure that the gas alarm is in normal working condition.

[0034] However, traditional gas alarm detectors include gas distribution detection instruments, matching gas cylinder units, calibration containers and chargers. Therefore, when inspectors conduct home inspections, they need to carry large-volume detection instruments / equipment, which is inconvenient for inspectors to carry and requires manual data recording, which is inefficient and prone to errors.

[0035] In view of this, an embodiment of the present application provides a portable gas alarm detection device, which greatly reduces the volume of the gas alarm detection device by placing a monitoring module and a gas distribution module in a cover container, and placing a power supply module in a connecting rod. At the same time, the detection personnel can cover the alarm to be detected located on the side wall or the roof with the cover container of the portable gas alarm detection device by grabbing the connecting rod connected to the bottom of the cover container, thereby forming a closed space around the alarm to be detected, and then the high-pressure and high-purity gas in the gas cylinder is transmitted to the closed space to form a simulated gas leakage scene in the closed space. At the same time, a monitoring module capable of checking the gas concentration inside the cover container is built into the cover container, and there is no need to extract the gas in the cover container to the monitoring controller to measure the gas concentration. After the gas concentration is measured, the extracted gas is transported back to the cover container, which improves the speed of testing the gas concentration inside the cover container, and then by detecting the alarm condition of the alarm to be detected inside the cover container, it is determined whether the alarm to be detected is working normally. That is, the portable gas alarm detection device is easier for detection personnel to carry and shortens the testing time while ensuring that the gas alarm can be normally detected whether it is in a normal working state.

[0036] See also Figure 1 The first embodiment of the present application provides a portable gas alarm detection device 100, which includes: a cover container 110, a gas cylinder 120, a monitoring module 130, a gas distribution module 140, a connecting rod 150, a power supply module 160 and a gas transmission pipeline 170.

[0037] Specifically, the cover container 110 is used to cover the alarm to be detected, thereby forming a closed space around the alarm to be detected, so as to simulate the gas leakage scene in the closed space, thereby realizing the detection of the gas alarm.

[0038] The gas cylinder 120 is connected to the cover container 110 through a gas transmission pipeline 170, and is used to store high-pressure and high-purity gas consistent with the gas type alarmed by the alarm to be detected, and the volume of the gas cylinder 120 is 0.5 liters, which further improves the portability of the portable gas alarm detection device 100. Among them, different types of high-pressure and high-purity gases may exist in different gas cylinders. According to the type of gas alarmed by the alarm to be detected, the corresponding gas cylinder is selected. Among them, one gas cylinder corresponds to a high-pressure and high-purity gas, and the high-pressure and high-purity gas is one of methane, propane, hydrogen, and carbon monoxide gases. The gas pressure can reach 10MPa (100 atmospheres) to ensure consumption during on-site detection. Furthermore, a pressure reducing valve 121 is installed on the gas cylinder 120 to reduce the high-pressure gas in the gas cylinder 120. It is worth noting that the gas transmission pipeline 170 can be hidden inside the connecting rod 150, making the portable gas alarm detection device 100 more beautiful.

[0039] The monitoring module 130 is located in the cover container 110 and is used to check the gas concentration of the gas alarmed by the alarm to be detected inside the cover container 110 and the alarm status of the alarm to be detected. The gas distribution module 140 is located in the cover container 110 and is used to control the transmission of the gas in the gas cylinder 120 and the detection of the gas concentration inside the cover container 110 by the test device 130. By controlling the transmission of the gas in the gas cylinder 120 to the cover container 110, the gas in the gas cylinder 120 is input into the enclosed space where the alarm to be detected is located to simulate the gas leakage scenario. The monitoring module 130 is used to control the test device to detect the gas concentration inside the cover container. Specifically, the monitoring module 130 detects the gas concentration of the gas alarmed by the alarm to be detected inside the cover container 110 and the alarm status of the large detection alarm, thereby determining the concentration of the alarm to be detected when the alarm is alarmed, so as to determine whether the alarm to be detected is in an abnormal state.

[0040] The gas distribution module 140 is located in the cover container 110 and is used to control the delivery and stirring of the gas in the gas cylinder 120 .

[0041] The connecting rod 150 is connected to the bottom of the cover container 110. A power supply module 160 is installed inside the connecting rod 150. A charging interface 151 is stored at the bottom of the connecting rod 150. Power can be supplied through the power supply module 160 or through the charging interface 151. Installing the power supply module 160 inside the connecting rod 150 can further reduce the volume of the gas alarm detection device 100. The power supply module 160 is used to supply power to the monitoring module 130 and the gas distribution module 140. During the detection of the alarm to be detected, the detection personnel can grab the connecting rod 150 connected to the bottom of the cover container 110, so as to cover the alarm to be detected located on the side wall or the roof with the cover container 110, which provides convenience for the detection process of the detection personnel.

[0042] See also Figure 2 In a possible implementation of the embodiment of the present application, the monitoring module 130 may include: A gas concentration sensor 131 is used to detect the gas concentration in the cover container 110; The sound detection unit 132 is used to detect whether the alarm to be detected in the cover container 110 emits an alarm sound; The communication unit 133 is used to connect with the mobile electronic device.

[0043] Specifically, the gas concentration sensor 131 located in the cover container 110 can directly detect the concentration of the detection gas in the cover container 110, without extracting the gas in the cover container 110 for detection and sending it back after detection, thereby realizing the fastest detection of the gas concentration in the enclosed space without causing loss of control or inaccurate testing due to delays.

[0044] Generally speaking, when the gas alarm detects abnormal gas content in the air, it will sound an alarm, accompanied by flashing alarm lights. Therefore, the monitoring module 130 may also include a light detection unit. When the light detection unit or the sound detection unit detects flashing lights or alarm sounds of the gas alarm, it is determined that the gas alarm has issued an alarm message. More specifically, the communication unit 133 may send the gas concentration in the cover container 110 measured by the gas concentration sensor 131 to the mobile electronic device 510 via wireless Bluetooth, and store it on a specific app on the mobile electronic device 510. When the sound detection unit 132 detects that the alarm to be detected in the cover container 110 emits an alarm sound, the communication unit 133 sends the gas concentration at this time as the gas concentration at the alarm moment to the mobile electronic device 510, so as to store it on a specific app on the mobile electronic device 510.

[0045] Furthermore, the monitoring module 130 may also include: a pressure sensor 134 for detecting the atmospheric pressure in the cover container 110 to determine the pressure value when the alarm to be detected is detected; The temperature sensor 135 is used to detect the temperature inside the cover container 110 to determine the temperature when the alarm is detected; The humidity sensor 136 is used to detect the humidity in the cover container 110 to determine the humidity when the alarm to be detected is detected.

[0046] The laser / infrared gas concentration sensor 137 is used to detect the gas concentration in the cover container 110, and then determine the performance of the alarm to be detected.

[0047] See also Figure 3 In a possible implementation of the embodiment of the present application, the gas distribution module 140 may include: A stirring fan 143 is used to stir the delivered high-pressure and high-purity gas evenly in the cover container; The solenoid valve 142 is used to deliver the gas delivered after decompression to the cover container 110; The pressure regulating valve 141 is used to maintain a constant pressure and flow rate of the gas entering the solenoid valve.

[0048] Specifically, the solenoid valve 142 can control the gas delivered after decompression to the closed space according to the calculated conduction time according to the gas concentration requirement to be configured in the cover container 110. The solenoid valve 142 has the characteristics of being able to quickly control the on-off of the gas path, long life, and low power consumption.

[0049] See also Figure 3 In another possible implementation of the embodiment of the present application, the gas distribution module 140 may further include: The image acquisition device 144 is used to capture the image of the alarm to be detected.

[0050] Specifically, the communication unit 133 may send the image of the alarm to be detected captured by the image acquisition device 144 to the portable electronic device for storage in the portable electronic device.

[0051] See also Figure 4 The second embodiment of the present application provides a portable gas alarm detection method, which is applied to the portable gas alarm detection device in the first embodiment. The method is executed by a mobile electronic device, and the method includes: Step S401: receiving detection instructions and collection instructions.

[0052] Among them, the detection instruction includes the model of the alarm to be detected, the detection gas, the factory setting value of the detection gas and the production date, and the acquisition instruction is used to control the image acquisition device to acquire the appearance image and nameplate image of the alarm to be detected.

[0053] When inspectors conduct on-site inspections, they need to select a gas cylinder that matches the gas that the alarm to be inspected alarms. Specifically, inspectors can use a mobile electronic device to issue inspection instructions and acquisition instructions to control the image acquisition device to capture the image of the alarm to be inspected. The mobile electronic device compares the image with the images of each gas alarm to determine the model of the alarm to be inspected; or, the inspector inputs the model number marked on the alarm to be inspected into the mobile electronic device, and the mobile electronic device directly receives the model number input by the inspector to obtain the model number of the alarm to be inspected.

[0054] Furthermore, after determining the model of the alarm to be detected, the inspector grabs the connecting rod 150 connected to the bottom of the cover container 110, thereby covering the alarm to be detected with the cover container 110. The inspector issues a detection instruction, and the mobile electronic device receives the detection instruction about the alarm to be detected.

[0055] Step S402: Determine the detection gas type and the detection gas concentration range of the alarm to be detected.

[0056] Among them, a model of an alarm to be detected corresponds to at least one detection gas type, and a detection gas type corresponds to a preset detection gas concentration and a preset allowable error.

[0057] Specifically, after receiving the detection instruction of the alarm to be detected, based on the model corresponding to the alarm to be detected, the detection gas type corresponding to the model, the detection gas concentration corresponding to the detection gas type and the corresponding allowable error are obtained, and based on the detection gas concentration range = (detection gas concentration - allowable error, detection gas concentration + allowable error], the detection gas concentration range of the alarm to be detected is obtained.

[0058] Step S403: Based on the detection gas concentration range, control the gas cylinder to release the detection gas into the enclosed space corresponding to the alarm to be detected.

[0059] The detected gas is the gas in the gas cylinder 120 .

[0060] The gas concentration is the mass of gas per unit volume. In order to simulate the gas leakage scenario in the confined space corresponding to the alarm to be detected so as to detect the alarm to be detected, the concentration of the gas corresponding to the gas type alarmed by the alarm to be detected in the confined space can be adjusted to the detection gas concentration-allowable error to determine whether the closed alarm to be detected will alarm. If an alarm occurs, it means that the alarm to be detected is in an abnormal state; if no alarm occurs, the concentration of the gas corresponding to the gas type alarmed by the alarm to be detected in the confined space will continue to be adjusted to the detection gas concentration+allowable error, and determine whether the closed alarm to be detected will alarm. If the alarm to be detected does not alarm, it means that the alarm to be detected is in an abnormal state; if the alarm to be detected alarms, it means that the alarm area of ​​the alarm to be detected is [detection gas concentration-allowable error, detection gas concentration+allowable error], and the alarm to be detected is in a normal state. Therefore, the gas cylinder can be controlled to release the detection gas into the confined space corresponding to the alarm to be detected.

[0061] Specifically, the internal volume of the cover container 110 is obtained, and based on the concentration of the gas after decompression, the volume of the gas input to the enclosed space corresponding to the alarm to be detected is determined, and the detection gas of the gas volume is transported to the enclosed space corresponding to the alarm to be detected. More specifically, based on gas volume = (detection gas concentration - allowable error) * internal volume / concentration of the gas after decompression, the volume of the gas input to the enclosed space corresponding to the alarm to be detected is obtained.

[0062] More specifically, based on the minimum detection gas concentration in the detection gas concentration range, the first gas volume corresponding to the minimum detection gas concentration is determined, that is, the first gas volume = (detection gas concentration - allowable error) * internal volume / concentration of the gas after decompression; based on the maximum detection gas concentration in the detection gas concentration range, the second gas volume corresponding to the maximum detection gas concentration is determined, that is, the second gas volume = (detection gas concentration + allowable error) * internal volume / concentration of the gas after decompression.

[0063] Step S404: determining the detection gas concentration corresponding to when the alarm to be detected generates an alarm message.

[0064] When the concentration of the gas corresponding to the gas type alarmed by the alarm to be detected in the confined space is adjusted to the detection gas concentration minus the allowable error, determine whether the closed alarm to be detected will alarm. If an alarm occurs, it means that the detection gas concentration corresponding to the alarm information generated by the alarm to be detected is the detection gas concentration minus the allowable error; if no alarm occurs, when the concentration of the gas corresponding to the gas type alarmed by the alarm to be detected in the confined space is the detection gas concentration plus the allowable error, determine whether the closed alarm to be detected will alarm. If the alarm to be detected alarms, it means that the detection gas concentration corresponding to the alarm information generated by the alarm to be detected is the detection gas concentration plus the allowable error; if no alarm occurs, it means that the detection gas concentration corresponding to the alarm information generated by the alarm to be detected is greater than the detection gas concentration plus the allowable error.

[0065] Step S405: determine whether the alarm to be detected is abnormal based on the detection gas concentration range and the detection gas concentration, and automatically generate a detection report for the alarm to be detected.

[0066] After obtaining the detection gas concentration corresponding to the alarm information generated by the alarm to be detected and the detection gas concentration corresponding to the alarm to be detected, determine whether the detection gas concentration is within the alarm gas concentration range. If the detection gas concentration is within the alarm gas concentration range, it is determined that the alarm to be detected is in a normal state; if the detection gas concentration is not within the alarm gas concentration range, it is determined that the alarm to be detected is in an abnormal state. Furthermore, based on the determined state of the alarm to be detected, a detection report of the alarm to be detected is automatically generated and stored in a specific app in the mobile electronic device, thereby realizing automatic recording without manual input, which not only reduces labor costs, but also reduces the errors caused by manual input to a certain extent.

[0067] In a possible implementation of the embodiment of the present application, in the above step S403, based on the detection gas concentration range, controlling the gas cylinder to release the detection gas into the confined space corresponding to the alarm to be detected includes: Obtain the theoretical space volume of the confined space corresponding to the alarm to be detected; Based on the detection gas concentration range and the theoretical space volume, determine the minimum release volume corresponding to the minimum detection gas concentration in the detection gas concentration range; Control the gas cylinder to release the minimum release volume of gas into the enclosed space corresponding to the alarm to be detected.

[0068] Specifically, the cover container 110 is in the shape of a cuboid, and the length, width and height of the cuboid are all known quantities. Based on volume = length * width * height, the internal volume of the cover container 110 can be obtained as the theoretical space volume. Based on the concentration of the gas after decompression and the minimum detection gas concentration in the detection gas concentration range, the minimum release volume corresponding to the minimum detection gas concentration in the detection gas concentration range is determined, and the detection gas with the minimum release volume is transported to the closed space corresponding to the alarm to be detected. More specifically, based on minimum release volume = (detection gas concentration - allowable error) * theoretical space volume / concentration of gas after decompression, the minimum release volume corresponding to the minimum detection gas concentration in the detection gas concentration range is obtained. Further, the gas cylinder 120 is controlled to release the minimum release volume of gas to the closed space corresponding to the alarm to be detected, and the stirring fan 143 is controlled to start to stir the gas in the cover container 110 evenly.

[0069] In another possible implementation of the embodiment of the present application, in the above embodiment, after controlling the gas cylinder to release the minimum release volume of gas into the confined space corresponding to the alarm to be detected, it also includes: Receiving air gas concentration in the confined space; Determine the actual volume of the confined space based on the gas concentration in the space and the minimum release volume; Based on the actual space volume, a first release volume is determined, where the first release volume is the gas volume required to change the gas concentration in the confined space to reach the minimum detected gas concentration; Based on the first released volume, controlling the detection gas concentration in the enclosed space to reach a minimum detection gas concentration; Determine whether the alarm to be detected has sounded an alarm.

[0070] Since the cover container 110 contains the monitoring module 130, the gas distribution module 140 and the alarm to be detected, the actual volume in the cover container 110 needs to be obtained by subtracting the sum of the volumes of the monitoring module 130, the gas distribution module 140 and the alarm to be detected from the theoretical space volume, and since the volumes corresponding to different alarms to be detected may be different, after the gas with the minimum release volume is transported to the closed space corresponding to the alarm to be detected, the monitoring module 130 can be controlled to detect the concentration of the detection gas in the cover container 110 to determine the actual space volume of the closed space. Specifically, the space gas concentration in the closed space measured by the receiving gas concentration sensor 131 is determined based on the actual space volume = (detection gas concentration - allowable error) * theoretical space volume / space gas concentration, and the actual space volume in the closed space is determined.

[0071] Furthermore, after obtaining the actual spatial volume of the confined space, since the actual spatial volume is different from the theoretical spatial volume, after adding the same minimum release volume of gas, the concentration in the confined space is not the minimum detection gas concentration. At this time, in order to make the concentration in the confined space reach the minimum detection gas concentration, it is necessary to add or reduce the gas in the confined space. Specifically, the gas volume required to change the spatial gas concentration in the confined space to reach the minimum detection gas concentration can be determined based on the minimum detection gas concentration, the spatial gas concentration and the actual spatial volume. More specifically, the first release volume is determined based on the first release volume = actual spatial volume - theoretical spatial volume. If the first release volume is a positive number, it is necessary to add the first release volume to the gas in the confined space; if the first release volume is a negative number, it is necessary to reduce the first release volume of the gas in the confined space to control the detection gas concentration in the confined space to reach the minimum detection gas concentration.

[0072] Furthermore, after the detection gas concentration in the controlled closed space reaches the minimum detection gas concentration, the sound detection unit 132 determines whether the alarm to be detected in the cover container 110 emits an alarm sound to determine whether the alarm to be detected has sounded.

[0073] In another possible implementation of the embodiment of the present application, in the above embodiment, after determining whether the alarm to be detected has generated an alarm, the method further includes: If the alarm to be detected does not sound an alarm, then determine the maximum release volume corresponding to the maximum detection gas concentration in the detection gas concentration range; Based on the maximum release volume, the minimum release volume and the first release volume, a second release volume is determined, where the second release volume is the additional gas volume required for the gas concentration in the confined space to reach the maximum detected gas concentration; Controlling the gas cylinder to release the second release volume into the confined space; Determine whether the alarm to be detected has sounded an alarm.

[0074] After the concentration of the detected gas in the controlled closed space reaches the minimum detected gas concentration, the sound detection unit 132 determines that the alarm to be detected in the cover container 110 does not sound an alarm, and then determines that the alarm to be detected has not alarmed. Then, when the concentration of the gas corresponding to the gas type alarmed by the alarm to be detected in the closed space is the concentration of the detected gas + the allowable error, it is determined whether the closed alarm to be detected will alarm. Specifically, the maximum release volume corresponding to the maximum detected gas concentration in the detection gas concentration range is determined based on the maximum release volume corresponding to the maximum detected gas concentration = (detection gas concentration + allowable error) * theoretical space volume / concentration of gas after decompression.

[0075] Since there is a certain concentration of detection gas in the confined space, only a certain amount of detection gas needs to be added to reach the maximum detection gas concentration. Further, based on the second release volume = (maximum release volume - minimum release volume + first release volume) * actual space volume / theoretical space volume, the second release volume is obtained, and the gas cylinder 120 is controlled to release the second release volume into the confined space, and then based on the sound detection unit 132, it is determined whether the alarm to be detected in the cover container 110 emits an alarm sound, so as to determine whether the alarm to be detected has an alarm.

[0076] Furthermore, in the above step S404, when determining the alarm gas concentration corresponding to when the alarm to be detected generates an alarm message, it can specifically include: when the concentration of the gas corresponding to the gas type alarmed by the alarm to be detected in the confined space is adjusted to the detection gas concentration-allowable error, judging whether the closed alarm to be detected will alarm. If an alarm occurs, it means that the alarm gas concentration corresponding to when the alarm to be detected generates an alarm message is the detection gas concentration-allowable error; if no alarm occurs, when the concentration of the gas corresponding to the gas type alarmed by the alarm to be detected in the confined space is the detection gas concentration+allowable error, judging whether the closed alarm to be detected will alarm. If the alarm to be detected alarms, it means that the alarm gas concentration corresponding to when the alarm to be detected generates an alarm message is the detection gas concentration+allowable error; if no alarm occurs, it means that the alarm gas concentration corresponding to when the alarm to be detected generates an alarm message is greater than the detection gas concentration+allowable error.

[0077] Furthermore, in the above step S404, determining whether the alarm to be detected is abnormal may specifically include: After obtaining the alarm gas concentration corresponding to the alarm information generated by the alarm to be detected and the alarm gas concentration corresponding to the alarm to be detected, it is determined whether the alarm gas concentration is within the alarm gas concentration range. If the alarm gas concentration is within the alarm gas concentration range, it is determined that the alarm to be detected is in a normal state; if the alarm gas concentration is not within the alarm gas concentration range, it is determined that the alarm to be detected is in an abnormal state.

[0078] In a possible implementation of the embodiment of the present application, in the above embodiment, controlling the gas cylinder to release the minimum release volume of gas into the confined space corresponding to the alarm to be detected includes: Set the internal operating parameters of the portable gas alarm detection device; Based on the internal operating parameters, the gas cylinder is controlled to release a minimum release volume of gas into the enclosed space corresponding to the alarm to be detected according to the gas pressure and the gas flow rate.

[0079] Among them, the internal transport parameters include the minimum released gas volume, gas pressure and gas flow rate.

[0080] Specifically, the internal operating parameters such as the minimum released gas volume, gas pressure and gas flow rate can be automatically set through the mobile electronic device or manually input through the specific app section on the mobile electronic device. When starting the test, check whether the pressure reducing valve and flow controller have been adjusted to the preset value. After confirming that they are correct, control the solenoid valve to open, allowing gas to flow out of the gas cylinder, and accurately control the pressure and flow rate through the pressure reducing valve and flow controller. At the same time, the gas volume metering device starts to measure the released gas volume. When the gas volume reaches the preset minimum release volume, the control closes the solenoid valve and stops the gas release. The mobile electronic device automatically records key data during the test (such as the actual released gas volume, pressure, flow rate, etc.) in a specific app.

[0081] See also Figure 5 The third embodiment of the present application discloses a portable gas alarm detection system 500, and the portable gas alarm detection system 500 includes: As the portable gas alarm detection device 100 of the first embodiment described above; The portable electronic device 510 is connected to the portable gas alarm detection device and is used to control the operation of the portable gas alarm detection device, so that the portable gas alarm detection device itself does not need complicated display and operation buttons, which reduces the weight of the equipment while also reducing costs and realizing automatic management of the detection process.

[0082] In a possible implementation of the embodiment of the present application, the mobile electronic device 510 includes: at least one processor; Memory; At least one application, wherein the at least one application is stored in the memory and is configured to be executed by at least one processor, and the at least one application is configured to: execute the gas alarm detection method in the second embodiment above.

[0083] Specifically, the mobile electronic device 510 may be an electronic device such as a mobile phone or a tablet.

Claims

1. A portable gas alarm detection device, characterized in that: The portable gas alarm detection device comprises: A cover container, used for covering the alarm to be detected; A gas cylinder connected to the cover container through a gas transmission pipeline, and used to store high-pressure high-purity gas consistent with the gas type detected by the alarm to be detected, wherein one gas cylinder corresponds to one high-pressure high-purity gas, and the high-pressure high-purity gas is one of methane, propane, hydrogen, and carbon monoxide; A monitoring module, located in the cover container, is used to check the gas concentration of the gas alarmed by the alarm to be detected inside the cover container and the alarm status of the alarm to be detected, and is used to control the test device to detect the gas concentration inside the cover container; A gas distribution module, located in the cover container, is used to control the delivery and stirring of the gas in the gas cylinder; A connecting rod is connected to the bottom of the cover container, and a power supply module is installed inside the connecting rod to supply power to the monitoring module and the gas distribution module.

2. The portable gas alarm detection device according to claim 1, characterized in that: The monitoring module comprises: A gas concentration sensor, used to detect the gas concentration in the cover container; A sound detection unit, used to detect whether the alarm to be detected in the cover container emits an alarm sound; The communication unit is used for connecting with electronic equipment.

3. The portable gas alarm detection device according to claim 1, characterized in that: The gas distribution module comprises: A stirring fan, used to stir the delivered high-pressure and high-purity gas evenly in the cover container; A solenoid valve is used to deliver the gas delivered after decompression to the cover container; The pressure regulating valve is used to maintain a constant gas pressure and flow rate entering the solenoid valve.

4. The portable gas alarm detection device according to claim 3, characterized in that: The gas distribution module also includes: Image acquisition equipment, used to capture images of the alarm to be detected.

5. A portable gas alarm detection method, characterized in that: The method is applied to the portable gas alarm detection device according to claim 4, and the method is performed by a mobile electronic device, and the method comprises: Receive a detection instruction and a collection instruction, wherein the detection instruction includes the model of the alarm to be detected, the detection gas, the factory setting value of the detection gas, and the production date, and the collection instruction is used to control the image acquisition device to collect the appearance image and the nameplate image of the alarm to be detected; Determine the detection gas type and detection gas concentration range of the alarm to be detected; Based on the detection gas concentration range, control the gas cylinder to release the detection gas into the enclosed space corresponding to the alarm to be detected; Determine the detection gas concentration corresponding to when the alarm to be detected generates alarm information; Based on the detection gas concentration range and the detection gas concentration, it is determined whether the alarm to be detected is abnormal, and a detection report of the alarm to be detected is automatically generated.

6. The portable gas alarm detection method according to claim 5, characterized in that: The step of controlling the gas cylinder to release the detection gas into the confined space corresponding to the alarm to be detected based on the detection gas concentration range includes: Obtaining the theoretical space volume of the confined space corresponding to the alarm to be detected; Based on the detection gas concentration range and the theoretical space volume, determining a minimum release volume corresponding to a minimum detection gas concentration in the detection gas concentration range; The gas cylinder is controlled to release the minimum release volume of gas into the enclosed space corresponding to the alarm to be detected.

7. The portable gas alarm detection method according to claim 6, characterized in that: After controlling the gas cylinder to release the gas of the minimum release volume into the enclosed space corresponding to the alarm to be detected, the method further includes: receiving a spatial gas concentration within the confined space; Determining the actual spatial volume of the confined space based on the spatial gas concentration and the minimum release volume; Based on the actual space volume, determining a first release volume, the first release volume being the gas volume required to change the space gas concentration in the enclosed space to reach the minimum detected gas concentration; Based on the first released volume, controlling the detection gas concentration in the enclosed space to reach a minimum detection gas concentration; Determine whether the alarm to be detected generates an alarm.

8. The portable gas alarm detection method according to claim 7, characterized in that: After determining whether the alarm to be detected generates an alarm, the method further includes: If the to-be-detected alarm does not sound an alarm, determining a maximum release volume corresponding to the maximum detection gas concentration in the detection gas concentration range; Based on the maximum release volume, the minimum release volume and the first release volume, a second release volume is determined, where the second release volume is the additional gas volume required for the gas concentration in the enclosed space to reach the maximum detected gas concentration; Controlling the gas cylinder to release the second release volume into the confined space; Determine whether the alarm to be detected generates an alarm.

9. The portable gas alarm detection method according to claim 6, characterized in that: The step of controlling the gas cylinder to release the minimum released volume of gas into the enclosed space corresponding to the alarm to be detected comprises: Setting internal operating parameters of the portable gas alarm detection device, wherein the internal operating parameters include minimum released gas volume, gas pressure and gas flow rate; Based on the internal operating parameters, the gas cylinder is controlled to release the minimum release volume of gas into the enclosed space corresponding to the alarm to be detected according to the gas pressure and the gas flow rate.

10. A portable gas alarm detection system, characterized in that: The system comprises: The portable gas alarm detection device according to any one of claims 1 to 4; A portable electronic device is connected to the portable gas alarm detection device and is used to control the operation of the portable gas alarm detection device, so that the portable gas alarm detection device itself does not require complicated display and operation buttons, which reduces the weight of the equipment while also reducing costs and realizing automatic management of the detection process.

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