Gas detection equipment

Abstract

The utility model relates to gas detection equipment. The gas detection equipment comprises an infrared camera module, a visible light camera module, an image processing circuit board and a man-machine interaction module, light paths of the infrared camera module and the visible light camera module are arranged in parallel, the infrared camera module is detachably connected to a first surface of the image processing circuit board, and the visible light camera module is detachably connected to the first surface of the image processing circuit board through a connecting piece; the man-machine interaction module is connected to the second surface of the image processing circuit board; wherein the first surface and the second surface are two opposite surfaces. Based on the gas detection equipment provided by the invention, signal interference can be avoided through reasonable layout, so that the gas detection accuracy is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of chemical safety, in particular to a gas detection device. BACKGROUND

[0002] The total annual output of China's chemical industry exceeds 13 trillion yuan, accounting for more than 15% of GDP, and has been the world's largest for many years. However, there is a serious lack of safety warning capability, leading to frequent chemical accidents. Most of the chemical accidents are caused by the leakage of chemical gas, so it is of the utmost importance for the safety production of the chemical industry to make effective alarm at the first time when the chemical gas leaks.

[0003] Currently, the gas detection in the chemical industry mainly uses point-type detection devices and suction-type detection devices. The point-type detection device usually detects the gas concentration at a specific point, but this detection device can only reflect the gas condition at the specific point and is difficult to detect the overall situation of a large area. For example, if the gas condition of the entire chemical production area needs to be monitored, multiple point-type detection devices may need to be installed, increasing the cost and maintenance difficulty. In addition, such point-type detection devices are easily affected by the surrounding environment, such as temperature, humidity, wind speed, etc., which may cause inaccurate measurement results. The suction-type detection device usually analyzes the air in the detected area by actively sucking the air into the detection instrument, but the suction-type detection device requires the collection port of the detection device to be very close to the leakage site, resulting in a very small detection range and inconvenient operation. It is difficult to use the suction-type detection device for detection in areas that are high or difficult for humans to reach, and humans are likely to inhale harmful gases when deploying the detection device. In addition, the suction-type detection device often relies on components such as sampling pumps and filters when sucking in gas, making the installation process more complex and the subsequent maintenance more difficult. For example, if the sampling pipeline is blocked or damaged, it needs to be repaired in time, increasing the maintenance difficulty. In addition, in the existing gas detection equipment, the unreasonable layout of the devices causes mutual interference between signals, affecting the accuracy of gas detection. SUMMARY

[0004] In view of the above problems of the prior art, the present application provides a gas detection device that can expand the detection range, improve the detection distance, and improve the accuracy of gas detection.

[0005] To achieve the above object, the first aspect of the present application provides a gas detection device, comprising: an infrared camera module, a visible light camera module, an image processing circuit board, and a human-computer interaction module; the optical paths of the infrared camera module and the visible light camera module are arranged in parallel, the infrared camera module is detachably connected to a first surface of the image processing circuit board, the visible light camera module is detachably connected to the first surface of the image processing circuit board through a connecting piece; the human-computer interaction module is connected to a second surface of the image processing circuit board; wherein the first surface and the second surface are two opposite surfaces.

[0006] From the above, the gas detection device provided by the present aspect can avoid the interference of signals of different modules through reasonable layout by arranging different modules on two surfaces of the image processing circuit board. In addition, the instrument of the present application has reasonable layout and compact structure. The instrument provided by the present aspect can collect infrared images of a target area through the infrared camera module, collect visible light images of the target area through the visible light camera module, and then display the collected images through the human-computer interaction mode, so as to intuitively show the gas leakage condition of the target area. In addition, the gas leakage condition of the target area can be analyzed through two kinds of images, i.e., infrared images and visible light images, so as to make the data more reliable. The gas detection device provided by the present aspect has many advantages such as wide detection range, long detection distance, high safety, etc.

[0007] As an implementation manner of the present aspect, further comprising: an infrared lens, a plurality of filters, and a filter switching device; the infrared lens, the filters, the filter switching device, and the infrared camera module are connected in sequence along the incident direction of the optical path; wherein the filter light ranges of the plurality of filters are different.

[0008] From the above, the focusing function can be realized through the cooperation of the infrared lens, and the gas detection within a range of at least 10 m can be realized. Through the cooperation of filters with different filter ranges, the imaging effect of light of different wave bands can be realized, so as to improve the identification effect.

[0009] As an implementation manner of the present aspect, further comprising: a fill light; the fill light is arranged close to the visible light camera module, and the fill light is detachably connected to the first surface of the image processing circuit board through the connecting piece.

[0010] From the above, the fill light can realize the fill light function in a dim environment, so as to make the imaging more clear.

[0011] As an implementation form of the present aspect, the loudspeaker module and the microphone module are arranged side by side, the loudspeaker module is connected to the second surface of the image processing circuit board through the first interface, and the microphone module is connected to the second surface of the image processing circuit board through the second interface.

[0012] According to the above, the on-site sound is collected through the loudspeaker module, and the on-site sound is played through the microphone module, so that the data types are enriched, and the maintenance personnel can comprehensively understand the on-site situation.

[0013] As an implementation form of the present aspect, the storage module is connected to the second surface of the image processing circuit board through the card slot.

[0014] According to the above, the relevant files are stored through the storage module, so that the staff can find the historical files to comprehensively analyze the leakage problem.

[0015] As an implementation form of the present aspect, the key module is connected to the second surface of the image processing circuit board, and the key module is a physical key.

[0016] According to the above, the physical key is provided through the key module, and the touch screen key is provided through the man-machine interaction module, so that different habits of users can be met, and the user friendliness is enhanced.

[0017] As an implementation form of the present aspect, the network communication module is connected to the second surface of the image processing circuit board.

[0018] As an implementation form of the present aspect, the network communication module includes a cellular communication module and a wireless communication module, and the cellular communication module and the wireless communication module are connected to the second surface of the image processing circuit board, respectively.

[0019] According to the above, the communication between the instrument and the background is realized through the network module, which is beneficial to data transmission.

[0020] As an implementation form of the present aspect, the positioning module is connected to the first surface of the image processing circuit board.

[0021] According to the above, the position of the device can be quickly obtained through the positioning module, so that the maintenance personnel can quickly locate the target area.

[0022] As an implementation form of the present aspect, the power module is connected to the first surface of the image processing circuit board.

[0023] From the above, since the instrument includes a plurality of modules, and the required power supply voltage of each module is different, the voltage is processed by connecting the power module to the image processing circuit board, so that stable voltage can be provided for different modules. BRIEF DESCRIPTION OF DRAWINGS

[0024] The various technical features of the present application and the relationship between them will be further described below with reference to the accompanying drawings. The drawings are exemplary, some technical features are not shown in actual proportion, and some technical features in the drawings can be omitted, which are conventional in the technical field to which the present application belongs and are not essential for understanding and implementing the present application, or additional technical features are shown, which are not essential for understanding and implementing the present application, that is, the combination of various technical features shown in the drawings is not used to limit the present application. In addition, throughout the present application, the same reference signs refer to the same contents. The specific drawings are as follows:

[0025] Figure 1 A schematic diagram of the hardware structure of a gas detection device provided by the present application is shown in the figure;

[0026] Figure 2 A first schematic diagram of the working principle of a gas detection device provided by the present application is shown in the figure;

[0027] Figure 3 A second schematic diagram of the working principle of a gas detection device provided by the present application is shown in the figure;

[0028] Figure 4 A schematic diagram of the structure of an infrared camera module provided by the present application is shown in the figure;

[0029] Figure 5 A schematic diagram of the screen display content provided by the present application is shown in the figure. DETAILED DESCRIPTION

[0030] The technical solutions provided by the present application will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the system structure and business scenarios provided in the embodiments of the present application are mainly to illustrate possible implementation manners of the technical solutions of the present application, and should not be interpreted as the only limitation of the technical solutions of the present application. Those skilled in the art can know that the technical solutions provided by the present application are also applicable to similar technical problems with the evolution of system structure and the appearance of new business scenarios.

[0031] It should be understood that the present application provides a gas detection device. Since the principles of these technical solutions for solving problems are the same or similar, in the introduction of the following specific embodiments, some repetitions can not be described again, but should be regarded as mutual reference between these specific embodiments, which can be combined with each other.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. If there is a conflict between the definitions in the specification and those in the patent specification, the definitions in the specification are intended to prevail. In addition, the terms used herein are merely used to describe the embodiments of the present application, and are not intended to limit the present application.

[0033] The embodiments of the present application will be described in detail below with reference to the accompanying drawings. First, the application scenarios of the gas detection device provided by the embodiments of the present application are introduced.

[0034] The gas detection device provided by the present application has many advantages such as wide detection range, long detection distance, high identification accuracy, visualization, etc. Therefore, the gas detection device of the present application is particularly suitable for the detection of leaked gas in the industrial safety field, such as in chemical plants, oil and gas exploration and processing sites, etc. Through the instrument provided by the present application, the leakage of flammable gas and toxic gas can be monitored and timely warning can be given, so as to prevent the occurrence of explosion, poisoning and other accidents. In addition, the instrument of the present application can also be applied to the field of environmental protection. The environmental protection department can use the instrument to monitor the concentration of atmospheric pollutants, so as to evaluate the air quality. In addition, the gas detection device of the present application can also be applied to some flammable and explosive places, such as gas stations, so as to timely find gas leakage and prevent fire and explosion accidents.

[0035] It should be understood that the above application scenarios are exemplary descriptions and do not limit the scope of the present application.

[0036] The embodiments of the present application provide a gas detection device, which will be described in detail below with reference to the accompanying drawings. It should be noted that the "connection" between the modules in the gas detection device of the present application can be a physical connection relationship or a signal connection relationship.

[0037] First, refer to Figures 1-3 In the present embodiment, the gas detection device 10 includes an infrared camera module 1001, a visible light camera module 1002, an image processing circuit board 1003, and a human-computer interaction module 1004. The optical paths of the infrared camera module 1001 and the visible light camera module 1002 are arranged in parallel. The infrared camera module 1001 is detachably connected to a first surface of the image processing circuit board 1003, and the visible light camera module 1002 is detachably connected to the first surface of the image processing circuit board 1003 through a connecting piece a. The human-computer interaction module 1004 is connected to a second surface of the image processing circuit board 1003. The first surface and the second surface are opposite surfaces of the image processing circuit board 1003.

[0038] In some embodiments, the gas detection device 10 further comprises an infrared lens 1001a, a plurality of filter pieces 1001c (not shown in the figure) and a filter switching device 1001b. Among them, the infrared lens 1001a, the filter pieces, the filter switching device 1001b and the infrared camera module 1001 are connected in sequence along the incident direction of the light path, and the light filtering wavelength ranges of the plurality of filter pieces are different. Next, each module will be introduced in detail.

[0039] The infrared lens 1001a is a zoom lens, which can support a manual focusing mode and / or can support an automatic focusing mode. In the manual focusing mode, focusing is performed by rotating the rotating ring (focusing ring) at the front of the lens, so that the image can be clearly imaged. As an implementation manner, the focal length range of the infrared lens 1001a in the embodiment is 18mm-60mm, and the aperture range of the infrared lens 1001a in the embodiment is f0.7-f1.0. It should be understood that the above-mentioned focal length range and aperture range are exemplary descriptions, and in actual application, lenses with different parameters can be selected according to the needs of different application scenarios.

[0040] The filter pieces include a plurality of filter pieces with different wavelength ranges, which are used to filter light of different spectral bands. As an implementation manner, in the embodiment, the filter pieces may, for example, include a first filter piece and a second filter piece, the first filter piece can pass light of a first spectral band, for example, 6-8um; the second filter piece can pass light of a second spectral band, for example, 9-12um. It should be understood that in other embodiments, the nth filter piece can also be included, which can pass light corresponding to other spectral bands. Based on the setting of the filter pieces, more accurate sampling for different bands can be realized.

[0041] In some embodiments, the gas detection device can further comprise a filter switching device 1001b to realize the switching of different band filter pieces, which can be in the form of a filter rotating wheel, or in the form of a filter sliding block, etc., and the present application does not limit it. The filter switching device 1001b is used to realize the switching of different band filter pieces.

[0042] The infrared camera module 1001 is used to sample infrared light passing through the infrared lens and filter and output a first infrared image. It should be understood that when the instrument 10 is located in the target area, the infrared camera module 1001 is used to obtain a first infrared image of the target area. As one implementation, the infrared camera module 1001 uses an uncooled infrared detector. Since uncooled infrared detectors can operate directly at room temperature, their power consumption is lower, and their size is smaller. Therefore, in some embodiments of this application, uncooled infrared detectors are used to reduce costs. Alternatively, the infrared camera module 1001 can also use a cooled infrared detector depending on the actual application scenario; this application does not limit its use. In this embodiment, the first infrared image obtained by the infrared camera module 1001 is in raw16 format (in other embodiments, it can be other formats within the MIPI format), and the raw16 format image data is sent to the image processing circuit board 1003.

[0043] In this embodiment, as Figure 4 As shown, the infrared camera module 1001 also includes a temperature control circuit 10011, a configuration circuit 10012, an analog circuit 10013, an FPGA processing circuit 10014, and an interface circuit 10015. These circuits are connected sequentially. The temperature control circuit 10011 acquires the actual temperature of the infrared camera module 1001 and outputs a control signal after comparing the actual temperature with the target temperature to drive the temperature control circuit to achieve cooling or heating. This temperature control circuit can be a TEC (Thermoelectric Cooler, also known as a semiconductor cooler or Peltier cooler) temperature control circuit. The configuration circuit 10012 provides a bias voltage to the infrared camera module 1001, for example... Figure 4The temperature control signal shown can be provided by the configuration circuit 10012 in the form of a bias voltage. The configuration circuit 10012 is also used to enhance the collected analog image (or video, described below as image) signal, and send the enhanced analog image signal to the analog circuit 10013, which first differentiates and then digitizes the analog image signal to obtain a digital image signal, and send the image digital signal to the FPGA processing circuit 10014, which is used to process the received digital image signal to obtain a DVP (Digital Video Port) format image signal, and send the DVP format image signal to the interface circuit 10015, which is used to convert the DVP format image signal into a MIPI format image signal, for example, into a raw16 format in this embodiment, and output as the output of the infrared camera module 1001. The MIPI format (raw16 format in this embodiment) image signal is output to the processing module 1003.

[0044] The visible light camera module 1002 is used to obtain a first visible light image of the target area. As an implementation manner, the visible light camera module 1002 in this embodiment selects a camera with a resolution of 1280x720, a field of view angle of V25°*H14° (i.e. a vertical field of view angle of 25° and a horizontal field of view angle of 14°), a focal length of 6mm, and an aperture of / F0.7. It should be understood that the above-mentioned parameter values of the visible light camera are all exemplary descriptions, and in actual application, a visible light camera with different parameters can be selected according to the needs of different application scenarios. In this embodiment, a bayer format first visible light image is obtained based on the visible light camera module 1002, and the bayer format first visible light image is sent to the image processing circuit board 1003. Based on the visible light image collected by the visible light camera module 1002, the infrared image collected by the infrared camera module 1001 can be compared or superimposed, so that the gas leakage situation in the target area can be more accurately determined.

[0045] The image processing circuit board 1003 is used to receive the raw16 format first infrared image sent by the infrared camera module 1001, and perform format conversion on the raw16 format first infrared image to obtain a grey format second infrared image, and transmit the second infrared image to the human-computer interaction module 1004 for display. The image processing circuit board 1003 is also used to receive the bayer format first visible light image sent by the visible light camera module 1002, and perform format conversion on the bayer format first visible light image to obtain a nv12 format second visible light image, and transmit the second visible light image to the human-computer interaction module 1004 for display.

[0046] In some embodiments, the image processing circuit board 1003 adopts 2Logic dual-core 1.2GHz frequency, plus Small core 240MHz frequency architecture, including 128MB storage capacity, using SIP (System in Package) technology, with LPDDR3 (Low Power Double Data Rate 3) memory, integrated high-performance Audio Codec (Audio Codec), LCD (Liquid Crystal Display) controller, Camera sensor interface (interface for connecting camera sensor), SSI controller (Serial Synchronous Interface Controller), SD / MMC (Secure Digital, MultiMediaCard) controller, I2C controller (Inter-Integrated Circuit Controller), etc., supporting USB OTG (USB On-The-Go, a USB technology that allows devices to communicate without a host), UART interface (Universal Asynchronous Receiver / Transmitter Interface), supporting OTP (One Time Programmable, a memory technology), and having multiple flexible GPIO interfaces (General Purpose Input / Output Interface, a general-purpose input / output interface), etc.

[0047] The human-computer interaction module 1004 is used to realize the human-computer interaction function, which receives the touch instruction sent by the user and switches the picture displayed by the human-computer interaction module according to the touch instruction, wherein the picture displayed by the human-computer interaction module includes the second infrared image or the second visible light image transmitted by the image processing circuit board 1003. As an implementation manner, the human-computer interaction module 1004 can be a screen, which can be a 4-inch touch-enabled screen in the embodiment, with a resolution of 1280x720, mainly used for displaying the second visible light image and the second infrared image, and realizing related control functions, such as controlling the switching of the filter, the switching of the displayed picture, the switching of the spectral channel, etc.

[0048] As Figure 5An example of a screen display content is shown, which includes:

[0049] 1. A display bar for displaying images in different image modes, i.e. for displaying real-time pictures captured by an infrared camera module or a visible light camera module, wherein the image of the visible light camera module is generally in a visible light mode, and the image of the infrared camera module can be in a plurality of modes such as a gray scale mode, a rainbow mode, a polar light mode, a lava mode, an iron red mode, etc.

[0050] 2. A status bar for displaying network status, power, Bluetooth mode, wave band information, etc.

[0051] 3. A menu bar for displaying a folder list, a setting page, etc.

[0052] 4. A tool bar for displaying image mode, sensitivity mode, position information, photographing, video recording, etc.

[0053] 5. A time bar for displaying current time.

[0054] In some embodiments, the gas detection device 10 can further include a speaker module 1005 and a microphone module 1006, wherein the speaker module 1005 and the microphone module 1006 are arranged side by side, the speaker module 1005 is connected to the second surface of the image processing circuit board 1003 through a first interface, and the microphone module 1006 is connected to the second surface of the image processing circuit board 1003 through a second interface.

[0055] The speaker module 1005 is used to collect live audio data of a target area at the same time when collecting images and send the audio data to the image processing circuit board 1003, and the audio data is output to a human-computer interaction module or a storage module for storage after being processed by the image processing circuit board 1003, wherein the data processing of the audio data by the image processing circuit board 1003 includes conventional processing such as noise reduction, and the purpose is to obtain clear live sound. As an implementation manner, the speaker module 1005 selects an audio amplifier with ultra-low EMI (Electromagnetic Interference), 5W single-channel D-class, which does not require a PWM modulation (Pulse Width Modulation) structure of a filter, thereby reducing external components, and ESD (Electrostatic Discharge) anti-static treatment is performed at the interface of the speaker module 1005, thereby ensuring the safety of the circuit.

[0056] The microphone module 1006 is used to play corresponding audio data when displaying a picture. When playing a video or an image through the human-computer interaction module, the image processing circuit board 1003 sends corresponding audio data to the microphone module 1006, and the microphone module 1006 plays the corresponding audio data. In the embodiment, the interface of the microphone module 1006 is also subjected to ESD anti-static treatment, thereby ensuring the safety of the circuit.

[0057] In some embodiments, the instrument 10 can further include a positioning module 1007, for example, a GPS module, which is connected to the first surface of the image processing circuit board 1003. The positioning module 1007 is used to locate the position where the instrument 10 is located, and send the obtained position information to the image processing circuit board 1003 through a serial port. The image processing circuit board 1003 transmits the position information to the human-computer interaction module for display. In the embodiment, the positioning module 1007 adopts a highly integrated dual-band (i.e., simultaneously supporting satellite signals of two different frequency ranges, for example, commonly supporting L1 and L5 two frequency bands), multi-satellite positioning chip, integrates a 6-axis IMU (Inertial Measurement Unit, inertial measurement unit) and supports a DR (Dead Reckoning, dead reckoning) algorithm, can fuse 6-axis IMU data and GNSS (Global Navigation Satellite System, global navigation satellite system) raw data, and ensure that the positioning module can also have superior positioning performance in a weak signal condition. Meanwhile, a ceramic active antenna with parameters such as a frequency range (i.e., a frequency interval in which the ceramic active antenna can effectively receive and transmit signals), a polarization mode (i.e., a direction characteristic of an electric field vector in an electromagnetic wave), and a voltage standing wave ratio (i.e., a parameter for measuring the matching degree between the antenna and a transmission line) that meet the requirements are selected, and the accuracy and anti-interference ability of positioning are further improved.

[0058] In some embodiments, the gas detection device 10 can further include a storage module 1008, which can be connected to the second surface of the image processing circuit board 1003 through a card slot. The storage module can be in the form of a TF card, for example, and is used to store image data collected by the infrared camera module 1001 and the visible light camera module 1002, and audio data collected by the speaker module 1005, and the like.

[0059] In some embodiments, the gas detection device 10 can further comprise a light supplement lamp 1009, which is arranged close to the visible light camera module 1001 and is detachably connected to the first surface of the image processing circuit board 1003 through the connecting member a. The light supplement lamp 1009 is used to supplement light to the target area in a dim environment, for example, the light supplement function can be controlled to be turned on or off through the light supplement button in the human-computer interaction module toolbar. The light supplement lamp 1009 is connected with the image processing circuit board 1003, the human-computer interaction module receives the user's command for turning on or off the light supplement function and transmits the command to the image processing circuit board 1003, and the image processing circuit board 1003 issues a control instruction to the light supplement lamp 1009 to control the light supplement lamp, so as to ensure the clarity of imaging in a dim environment. As an implementation manner, the power of the light supplement lamp can be 0.5 W. It should be understood that the 0.5 W is only an exemplary description and does not limit the scope of the present application.

[0060] In some embodiments, the gas detection device 10 can further comprise a network module 1010, which comprises a cellular communication module, such as a 4G network module, a 5G network module, and a wireless communication module, such as a WIFI network module, etc., and is used to realize network communication between the instrument and the background (or control center), and is used to transmit alarm information and related image (video) information to the background (or control center). The network module 1010 is connected with the image processing circuit board 1003, and is used to realize communication with the background at the corresponding time based on the control instruction connected by the image processing circuit board 1003. As an implementation manner, the 4G network module can select a wideband wireless terminal communication chip suitable for TDD-LTE (Time Division Duplexing-Long Term Evolution), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), GSM (Global System for Mobile Communications) multiple network systems, multiple frequency bands, and simultaneously supports VoLTE (Voice over Long-Term Evolution), audio, camera, LCD (Liquid Crystal Display), keyboard and other functions. The WIFI network module can select a chip of AW-NM372SM model, which supports IEEE 802.11b / g / n WLAN (wherein, IEEE 802.11 is a group of standards formulated for wireless local area network, b represents IEEE 802.11b standard, which works at 2.4 GHz frequency band, and the highest data transmission rate is 11 Mbps. g represents IEEE 802.11g standard, which also works at 2.4 GHz frequency band, and the highest data transmission rate is 54 Mbps. n represents IEEE 802.11n standard, which can also work at 2.4 GHz frequency band, and through the use of multiple input multiple output technology, etc., the highest data transmission rate can reach several hundred Mbps. WLAN is Wireless Local Area Network), Bluetooth and FM.

[0061] In some embodiments, the gas detection device 10 can further include a button module 1011 connected to the second surface of the image processing circuit board 1003. The button module 1011 is a physical button, and its function is the same as the touch function in the human-computer interaction module. The button module is connected to the image processing circuit board 1003, and is used to send control signals such as power-on / off signals, screen switching signals, spectral channel switching signals, and alarm lamp triggering signals to the image processing circuit board 1003. It should be understood that the button module is set to adapt to different user habits, that is, the control of the gas detection device can be controlled by the button module or by the touch function in the human-computer interaction module. As an implementation manner, the alarm function is triggered by long-pressing the confirmation button for a preset time (for example, 3 seconds), that is, alarm information is sent to the background, and a screen for a certain time (for example, 5-10 seconds) is automatically taken and sent to the background.

[0062] In some embodiments, the gas detection device 10 can further include a power module 1012 connected to the first surface of the image processing circuit board 1003. The power module 1012 outputs power, which is processed by the image processing circuit board 1003 to stabilize, step up, step down, filter, etc., to provide power to other modules in the gas detection device to meet their respective needs. In this embodiment, a 10.35 Ah explosion-proof polymer lithium battery is selected, which has a continuous running time of up to 5 hours, and a TYPE-C charging interface is reserved, which can be used to charge the battery separately or after installation.

[0063] The gas detection device provided by the embodiments of the present application can avoid interference between signals of different modules by arranging different modules on the two surfaces of the image processing circuit board. In addition, the instrument of the present application has a reasonable layout and a compact structure. Based on the instrument, infrared imaging and visible light imaging can be combined to achieve gas detection within a range of at least 10 m, which has the advantages of wide detection range and long detection distance. The infrared image and the visible light image can be used to more intuitively observe the gas leakage situation. In addition, the gas detection device of the present application can also realize one-key alarm, which can upload real-time video images to the background at the same time, facilitating maintenance personnel to fully understand the on-site situation. The gas detection device of the present application can select different image modes according to user habits to improve user experience.

[0064] Note that the above merely describes preferred embodiments of the present application and the applied technical principles. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, modifications and substitutions can be made without departing from the scope of the present application. Therefore, although the present application has been described in detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and all fall within the scope of the present application.

Claims

1. A gas detection device, characterized in that, include: Infrared camera module, visible light camera module, image processing circuit board, and human-computer interaction module; The infrared camera module and the visible light camera module are arranged in parallel optical paths. The infrared camera module is detachably connected to the first side of the image processing circuit board, and the visible light camera module is detachably connected to the first side of the image processing circuit board via a connector. The human-computer interaction module is connected to the second side of the image processing circuit board; wherein the first side and the second side are two opposite sides.

2. The device according to claim 1, characterized in that, Also includes: Infrared lens, multiple filters, and filter switching device; The infrared lens, the filter, the filter switching device, and the infrared camera module are connected sequentially along the incident direction of the optical path. The filtering bands of the multiple filters are different.

3. The device according to claim 1, characterized in that, Also includes: Fill light; The fill light is positioned close to the visible light camera module, and the fill light is detachably connected to the first side of the image processing circuit board via the connector.

4. The device according to claim 1, characterized in that, Also includes: Speaker module and microphone module; The speaker module and the microphone module are arranged side by side. The speaker module is connected to the second side of the image processing circuit board through a first interface, and the microphone module is connected to the second side of the image processing circuit board through a second interface.

5. The device according to claim 1, characterized in that, Also includes: Storage module; The storage module is connected to the second side of the image processing circuit board via a card slot.

6. The device according to claim 1, characterized in that, Also includes: Button module; The button module is connected to the second side of the image processing circuit board, and the button module is a physical button.

7. The device according to claim 1, characterized in that, Also includes: Network communication module; The network communication module is connected to the second side of the image processing circuit board.

8. The device according to claim 7, characterized in that, The network communication module includes a cellular communication module and a wireless communication module; The cellular communication module and the wireless communication module are respectively connected to the second side of the image processing circuit board.

9. The device according to claim 1, characterized in that, Also includes: Positioning module; The positioning module is connected to the first side of the image processing circuit board.

10. The device according to claim 1, characterized in that, Also includes: Power module; The power module is connected to the first side of the image processing circuit board.

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