Handheld gas detection device with voice function

Abstract

The utility model provides a handheld gas detection device with a voice function. The handheld gas detection device is mainly composed of a gas sensor, a voice broadcast module, a main controller, a power supply module, a shell and a handheld handle. The gas sensor detects the gas concentration in the environment and outputs a signal, and the voice broadcast module is in communication connection with the gas sensor and performs voice broadcast after receiving a detection result. The main controller is connected with the gas sensor and the voice broadcast module, controls the gas sensor and the voice broadcast module to work and determines voice broadcast content. The power supply module supplies power to the device, the shell accommodates all parts, and a voice output hole is formed in a preset position. The handheld handle is arranged on one side of the shell, and a user can hold the handle conveniently. Through the interaction of the technical schemes, the gas detection device can accurately and timely detect the gas concentration, and the gas concentration is presented to a user in various modes such as voice and a display screen, so that the user can conveniently use the gas detection device in a scene that both hands are busy.

Description

Technical Field

[0001] This invention relates to the field of instrumentation, specifically to a handheld gas detection device with voice function. Background Technology

[0002] In modern industrial production and daily life, accurate detection of various gases is crucial. Whether in high-risk industries such as chemicals and mining, or in the home environment, timely understanding of gas composition and concentration can effectively prevent safety accidents and protect people's lives and property.

[0003] Most existing handheld gas detection devices employ a relatively traditional design, typically consisting of a small housing and a built-in gas sensor. After the gas sensor detects the gas concentration in the environment, it displays the result digitally on a small display screen on the housing. Users need to observe the numbers on the display screen to understand the gas concentration information.

[0004] However, these traditional handheld gas detectors have significant drawbacks. In complex working environments, such as when the user's hands are busy or they are in a position with poor visibility, it is difficult to accurately obtain the gas concentration information displayed on the screen. This could lead to users not being aware of the presence of hazardous gases in an emergency, thus delaying the opportunity to take appropriate safety measures. Summary of the Invention

[0005] This application provides a handheld gas detection device with voice function, which addresses the shortcomings of existing handheld gas detection devices that only digitally display gas concentration information, making it difficult to accurately obtain information in complex environments or when users are busy. This device enables timely and accurate delivery of gas detection results to users through voice broadcasting, allowing users to conveniently obtain detection information in various environments and avoiding delays in taking safety measures due to the inability to promptly understand the presence of dangerous gases.

[0006] In a first aspect, this application provides a handheld gas detection device with voice function, comprising: a gas sensor for detecting gas concentration in the environment and outputting a detection signal; a voice broadcast module, communicatively connected to the gas sensor, for broadcasting the detection result aloud after receiving the detection result from the gas sensor; a main controller, connected to both the gas sensor and the voice broadcast module, for controlling the operation of the gas sensor and controlling the voice broadcast content of the voice broadcast module according to the detection result; a power supply module for providing operating power to the device; a housing, internally housing the gas sensor, the voice broadcast module, the main controller, and the power supply module, wherein a voice output hole is provided at a preset position in the housing; and a handle, disposed on one side of the housing for easy handheld use by the user.

[0007] By adopting the above technical solutions, the interaction of these technical solutions enables the gas detection device to accurately and timely detect gas concentration and present it to the user in multiple ways such as voice and display screen, making it convenient for users to use when their hands are busy.

[0008] In conjunction with some embodiments of the first aspect, in some embodiments, the voice broadcasting module includes a language conversion module and a speaker, for receiving the user's language request for voice broadcasting and broadcasting it in the corresponding language, and the speaker for playing the voice content output by the language conversion module.

[0009] By adopting the above technical solutions, we can improve the user experience, especially in international work environments or multilingual regions, and better meet the needs of users.

[0010] In conjunction with some embodiments of the first aspect, in some embodiments, a display screen is also included, disposed at a predetermined position on the front of the housing, for displaying the test result.

[0011] By adopting the above technical solutions, the detection results can be accurately presented to users, helping them to understand the gas conditions in the environment in a timely manner and make corresponding decisions.

[0012] In conjunction with some embodiments of the first aspect, in some embodiments, an intelligent adjustment module is also included, connected to the display screen. The intelligent adjustment module has a built-in light sensor for detecting the light intensity of the surrounding environment, so that the intelligent adjustment module adjusts the brightness of the display screen according to the light intensity.

[0013] By adopting the above technical solution, the brightness of the display screen can adapt to the viewing needs of the human eye under different lighting conditions, so that it is neither too bright to cause glare nor too dark to affect the user's reading of information.

[0014] In conjunction with some embodiments of the first aspect, in some embodiments, a positioning module is also included, which is connected to the main controller for acquiring the location information of the device in real time, associating the location information with the detection result, and sending the association result to the main controller after determining the association result.

[0015] By adopting the above technical solutions, gas concentrations at different locations can be accurately recorded in environmental monitoring or industrial production, facilitating subsequent data analysis and problem tracing. When anomalies in gas concentration are detected, the location of the anomaly can be quickly determined, allowing for timely implementation of appropriate measures, thus improving safety and response efficiency.

[0016] In conjunction with some embodiments of the first aspect, in some embodiments, a light indicator module is also included, which is connected to the main controller. When the main controller determines that the gas concentration is abnormal, it controls the light indicator module to emit light of different colors.

[0017] By employing the above technical solution, this intuitive prompting method can quickly attract the user's attention in noisy environments or when the user's attention is not focused, alerting them to potential dangers. Different colored lights can indicate different levels of danger, helping users make judgments and react more quickly, thus enhancing the safety and reliability of the device.

[0018] In conjunction with some embodiments of the first aspect, in some embodiments, a replaceable filter module is also included, disposed at the air inlet of the gas sensor. The replaceable filter module is designed to be detachable and is used to filter the gas entering the gas sensor.

[0019] By adopting the above technical solution, in some environments, dust, impurities, and other pollutants may be present in the air, which can affect the detection accuracy and lifespan of gas sensors. The replaceable filter module can prevent these pollutants from entering the sensor, ensuring its normal operation and improving the accuracy of the detection results. At the same time, the detachable design allows users to easily replace the filter, ensuring its filtration effect and extending the device's lifespan.

[0020] In conjunction with some embodiments of the first aspect, in some embodiments, an air intake is also included, disposed at the detection end of the gas sensor, for connecting a hose for a user to perform gas detection in a hazardous area via the hose.

[0021] By adopting the above technical solution, in some hazardous areas where users may not be able to directly access the detection area, the detection device can be extended to these areas via a flexible hose connection, enabling gas detection in hazardous areas. This design improves the applicability of the device, allowing users to conduct gas detection in a wider range of scenarios and ensuring personnel safety.

[0022] In conjunction with some embodiments of the first aspect, some embodiments further include a self-cleaning module comprising a micro fan and a jet device. The micro fan generates airflow to blow away dust and impurities from the surface of the gas sensor, and the jet device sprays cleaning gas to clean the gas sensor.

[0023] By adopting the above technical solution, the frequency of manual cleaning is reduced, the stability and reliability of the device are improved, and the accuracy of the test results is guaranteed.

[0024] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0025] 1. By adopting a collaborative design approach that integrates a gas sensor, voice broadcast module, main controller, power supply module, housing, and handheld handle, the technical problems of existing handheld gas detection devices, such as limited information acquisition methods and inconvenience for user operation, are effectively solved. This results in the ability to accurately detect gas concentrations, promptly broadcast detection results via voice, and facilitate handheld use by the user.

[0026] 2. By adopting the technical means of setting a display screen in a preset position on the front of the shell, the technical problem that it is not intuitive for users to obtain test results by voice broadcast alone is effectively solved, thereby enabling users to view test results more intuitively and understand the gas conditions in the environment in a timely manner.

[0027] 3. By adopting a positioning module connected to the main controller and using a technical means to obtain the device's location information and correlate it with the detection results in real time, the technical problem of not being able to accurately record the location information of abnormal gases during the gas detection process is effectively solved. This enables the rapid determination of the location of abnormal gas concentrations, timely implementation of corresponding measures, and improved safety and response efficiency. Attached Figure Description

[0028] Figure 1 This is a module connection diagram of an embodiment of the present utility model;

[0029] Figure 2 This is another module connection diagram of an embodiment of the present utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Gas sensor; 2. Voice broadcast module; 3. Main controller; 4. Power supply module; 5. Housing; 6. Handle; 7. Language conversion module; 8. Speaker; 9. Display screen; 10. Intelligent adjustment module; 11. Positioning module; 12. Light indicator module; 13. Replaceable filter module; 14. Air intake port; 15. Self-cleaning module; 16. Miniature fan; 17. Air jet device. Detailed Implementation

[0032] The terminology used in the following embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to include the plural expressions as well, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this application refers to any or all possible combinations including one or more of the listed items.

[0033] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0035] This utility model embodiment provides a handheld gas detection device with voice function, such as Figure 1 As shown, Figure 1 This is a module connection diagram of an embodiment of the present utility model, including:

[0036] Gas sensor 1 is used to detect the gas concentration in the environment and output a detection signal;

[0037] The voice broadcast module 2 is communicatively connected to the gas sensor 1 and is used to broadcast the detection result aloud after receiving the detection result from the gas sensor 1.

[0038] The main controller 3 is connected to the gas sensor 1 and the voice broadcast module 2 respectively, and is used to control the operation of the gas sensor 1 and control the voice broadcast content of the voice broadcast module 2 according to the detection result.

[0039] Power supply module 4 is used to provide operating power to the device;

[0040] The housing 5 houses the gas sensor 1, the voice broadcast module 2, the main controller 3, and the power supply module 4. A voice output hole is provided at a preset position in the housing 5.

[0041] A handle 6 is located on one side of the housing 5 for easy handholding.

[0042] Specifically, this device can simultaneously accommodate four different types of gas sensors 1, supporting a four-in-one gas measurement function. For example, in some industrial production environments, multiple harmful gases, such as carbon monoxide, hydrogen sulfide, and methane, may coexist. By using this device, users can detect the concentration of these gases at once and promptly identify potential safety hazards. To achieve the four-in-one gas measurement function, the device requires advanced sensor fusion technology and data processing algorithms. Different types of gas sensors 1 transmit the detected signals to the main controller 3. The main controller 3 fuses and processes these signals to calculate the concentration values ​​of each gas. The main controller 3 can use a 32-bit ARM Cortex-M series MCU, which uses a 32-bit ARM Cortex-M4 core with a maximum frequency of 168MHz; a specific model could be STM32F407VGT6. Simultaneously, the main controller 3 will determine whether an alarm or other operation is required based on user settings or preset programs. When a gas sensor 1 detects a change in gas concentration, it transmits the relevant information to the voice broadcast module 2. After receiving this information, the voice broadcast module 2 converts the detection results into voice signals through its built-in voice chip and broadcasts them through a pre-positioned voice output port on the housing 5. This allows users to understand the gas concentration in the environment simply by listening to the voice broadcast, without needing to check the display screen 9 or other data display devices, greatly improving convenience and safety. The main controller 3 can control the sampling frequency, detection range, and other parameters of the gas sensor 1 according to user settings or preset programs to meet the detection needs of different scenarios. Simultaneously, the main controller 3 can also determine whether to activate the voice broadcast module 2 based on the results detected by the gas sensor 1, and control the broadcast content and method of the voice broadcast module 2. For example, when the detected gas concentration exceeds a preset safety threshold, the main controller 3 will control the voice broadcast module 2 to emit an alarm sound to remind the user to pay attention to safety. The design of the housing 5 needs to consider waterproofing, dustproofing, and shockproofing to ensure the device can function normally in various harsh environments. The design of the handle 6 needs to consider ergonomic principles to ensure comfortable and stable operation for the user when holding the device. Meanwhile, the handle 6 also serves as an anti-slip feature, preventing the device from slipping due to sweaty hands or other reasons during use.

[0043] In summary, this handheld gas detector with voice functionality integrates multiple components, including a gas sensor 1, a voice broadcast module 2, a main controller 3, a power supply module 4, a housing 5, and a handle 6, to accurately detect gas concentrations in the environment and provide voice broadcast output. Furthermore, by supporting a four-in-one gas measurement function, it further improves detection efficiency and accuracy, providing users with a more convenient and safer gas detection service.

[0044] To facilitate understanding, the following section, based on the above content, provides a further modular description of the system provided in this implementation. Please refer to [link / reference]. Figure 2 , Figure 2 This is another module connection diagram of an embodiment of the present utility model.

[0045] exist Figure 2 In this handheld gas detector with voice functionality, the voice broadcast module 2 includes a language conversion module 7 and a speaker 8. The language conversion module 7 receives the user's voice broadcast request and broadcasts the information in the corresponding language. The speaker 8 plays the voice content output by the language conversion module 7. Specifically, the main controller 3 outputs a PWM (Pulse Width Modulation) signal to control the operation of the language conversion module 7. Based on the received PWM signal, the language conversion module 7 converts the detection results to a different language and outputs the converted voice information to the speaker 8. The speaker 8 then plays the voice content output by the language conversion module 7 under the control of the PWM signal. The language conversion module 7 has the ability to store and convert multiple languages, allowing it to convert the detection results into different languages ​​for broadcast according to the user's needs. This allows users to use the gas detector in different regions and situations, conveniently obtaining detection results broadcast in their familiar language. During this process, the main controller 3 can control parameters such as volume, speed, and tone of the voice broadcast by outputting different PWM signals, thereby meeting the user's needs in different scenarios. For example, in a noisy environment, the main controller 3 can output a larger PWM signal to increase the volume of the voice played by the speaker 8 so that the user can hear the broadcast content clearly; when the user needs to obtain information quickly, the main controller 3 can output a corresponding PWM signal to make the speaker 8 speed up the speech of the broadcast.

[0046] In some embodiments, the handheld gas detection device with voice function also includes a display screen 9, which is disposed at a preset position on the front of the housing 5 to display the detection result. Specifically, the main function of the display screen 9 is to present information such as the gas concentration detected by the gas sensor 1 to the user in an intuitive manner. The display screen 9 can use technologies such as liquid crystal display (LCD) or organic light-emitting diode (OLED), which can provide high-definition, high-contrast image display, ensuring that the user can easily read the displayed information.

[0047] In some embodiments, the handheld gas detection device with voice function further includes an intelligent adjustment module 10 connected to the display screen 9. The intelligent adjustment module 10 has a built-in light sensor that detects the ambient light intensity, allowing the intelligent adjustment module 10 to adjust the brightness of the display screen 9 according to the light intensity. Specifically, the intelligent adjustment module 10 can use the Sitronix ST7789VW display driver chip, a widely used driver chip for LCD and OLED displays. It supports receiving brightness control commands via I2C or SPI bus and adjusts the screen's power supply voltage according to the command to change the display brightness. This chip has a wide operating voltage range, supporting 1.65-3.3V, and can be directly connected to the MCU without additional level conversion. The light sensor can detect the ambient light intensity in real time and transmit the detected light intensity information to the intelligent adjustment module 10. When the light sensor detects strong ambient light, it sends a corresponding signal to the intelligent adjustment module 10. Upon receiving this signal, the intelligent adjustment module 10 determines, based on preset algorithms and logic, that the brightness of the display screen 9 needs to be reduced to avoid excessive brightness and glare, ensuring comfortable viewing of the information on the display screen 9. The intelligent adjustment module 10 adjusts the power supply voltage or other relevant parameters of the display screen 9 to reduce its brightness, adapting it to brighter lighting environments. Conversely, when the light sensor detects dim ambient light, it sends a different signal to the intelligent adjustment module 10. Upon receiving this signal, the intelligent adjustment module 10 determines that the brightness of the display screen 9 needs to be increased to ensure clear visibility of the information on the display screen 9 even in darker environments. In this way, the intelligent adjustment module 10 automatically and in real-time adjusts the brightness of the display screen 9 based on the light intensity detected by the light sensor, providing optimal display performance in various lighting conditions, improving the user experience, and allowing users to easily and clearly view the display screen 9 of the gas detection device under diverse lighting conditions.

[0048] In some embodiments, the handheld gas detection device with voice functionality further includes a positioning module 11 connected to the main controller 3. This module acquires the device's location information in real time, correlates the location information with the detection results, and sends the correlation result to the main controller 3 after determining the correlation. Specifically, the positioning module 11 can use a Global Positioning System (GPS), BeiDou Navigation Satellite System, or other positioning technologies to acquire location information. After acquiring the device's location information, the positioning module 11 matches and integrates the location information with the detection results to form a correlation result. This correlation result includes information such as the gas concentration detected by the device at a specific location. After determining the correlation result, the positioning module 11 sends the correlation result to the main controller 3. In this way, the device's location at any given time can be accurately determined, and the location information can be correlated with the detection results, allowing users to clearly understand the gas concentration and other information detected at a specific location, thus contributing to a more comprehensive understanding of the environmental conditions.

[0049] In some embodiments, the handheld gas detection device with voice function also includes a light indicator module 12 connected to the main controller 3. When the main controller 3 determines that the gas concentration is abnormal, it controls the light indicator module 12 to emit light indicators of different colors. Specifically, the main controller 3 continuously receives detection results from the gas sensor 1 and compares them with a preset normal gas concentration range. Once the detected gas concentration exceeds this range, the main controller 3 determines that the gas concentration is abnormal and immediately sends a control signal to the light indicator module 12. Upon receiving this signal, the light indicator module 12 emits light indicators of different colors. The light indicator module 12 consists of multiple light-emitting diodes (LEDs) of different colors. Upon receiving the signal from the main controller 3, different colors of light will illuminate according to preset rules for different gas concentration anomalies. For example, a yellow light may illuminate when a slight anomaly is detected, while a red light may illuminate when a severe anomaly is detected. In this way, the light indicator can intuitively attract the user's attention in noisy environments or when the user cannot hear the voice broadcast. Even when the user's gaze is not directly on display screen 9, the flashing lights can quickly alert the user to abnormal gas concentrations. Secondly, different colored lights can rapidly convey the degree of gas concentration abnormality, helping users quickly assess the level of danger and take appropriate measures in a timely manner.

[0050] In some embodiments, the handheld gas detection device with voice function further includes a replaceable filter module 13, disposed at the air inlet of the gas sensor 1. The replaceable filter module 13 is detachable and used to filter the gas entering the gas sensor 1. Specifically, the replaceable filter module 13 is implemented by installing a specific filter device at the air inlet of the gas sensor 1. This filter device consists of multiple layers of filter materials of different materials, effectively blocking dust, impurities, particulate matter, etc., from the air, preventing these substances from entering the gas sensor 1 and affecting the sensor's detection accuracy and lifespan. Due to the detachable design, the user can easily remove and replace the filter after a period of use. Different operating environments may require different types of filter elements. For example, in dusty environments, a filter element with better filtration effect can be used; while in relatively clean environments, a simpler filter element can be used. The detachable design allows the user to select and replace the appropriate filter element according to actual needs, thus enabling the gas detection device to better adapt to different working environments.

[0051] In some embodiments, the handheld gas detection device with voice function also includes an intake port 14, located at the detection end of the gas sensor 1, for connecting a flexible hose. This hose allows the user to perform gas detection in hazardous areas. Specifically, the intake port 14 is implemented by designing a specific interface at the detection end of the gas sensor 1 to ensure a secure connection with the hose. This interface typically uses standard dimensions and connection methods to ensure a stable connection of the hose to the intake port 14 without leakage. When the user needs to perform gas detection in a hazardous area, the hose can be connected to the intake port 14. The length of the hose can be selected according to actual needs, allowing the user to detect hazardous areas from a distance without directly approaching them, thus improving detection safety. For example, in hazardous environments with toxic gas leaks, the user can extend the gas detection device to the vicinity of the hazardous area using the hose while operating from a safe location. The user can adjust the position and direction of the hose according to different detection scenarios to better obtain gas samples. Simultaneously, the hose also serves to filter and protect the gas sensor 1, preventing larger particles or impurities from entering the sensor and affecting the accuracy of the detection results.

[0052] In some embodiments, the handheld gas detection device with voice function further includes a self-cleaning module 15, which includes a miniature fan 16 and a jet device 17. The miniature fan 16 generates airflow to blow away dust and impurities from the surface of the gas sensor 1, and the jet device 17 sprays cleaning gas to clean the gas sensor 1. Specifically, during use, dust and impurities may gradually accumulate on the surface of the gas sensor 1, which can affect the sensor's detection accuracy and sensitivity. The airflow generated by the miniature fan 16 can blow away the dust and impurities from the surface of the gas sensor 1, keeping the sensor surface clean. The jet device 17 then sprays cleaning gas to further clean the gas sensor 1. The jet device 17 typically includes a container for storing cleaning gas and a control valve. When cleaning is required, the control valve opens, and cleaning gas is sprayed from the container, directly acting on the surface of the gas sensor 1. The cleaning gas can be compressed air or a specific cleaning gas that can effectively remove stubborn stains and chemical residues from the sensor surface. This reduces the frequency and difficulty of manual cleaning, providing users with a more convenient experience. At the same time, it extends the service life of the gas detection device and reduces maintenance costs.

[0053] The handheld gas detection device with voice function in this embodiment includes: a gas sensor 1, a voice broadcast module 2, a main controller 3, a power supply module 4, a housing 5, a handheld handle 6, a language conversion module 7, a speaker 8, a display screen 9, an intelligent adjustment module 10, a positioning module 11, a light indicator module 12, a replaceable filter module 13, an air intake 14, a self-cleaning module 15, a miniature fan 16, and a jet device 17.

[0054] Gas sensor 1 is used to detect the gas concentration in the environment and output a detection signal;

[0055] The voice broadcast module 2 is communicatively connected to the gas sensor 1 and is used to broadcast the detection result aloud after receiving the detection result from the gas sensor 1.

[0056] The main controller 3 is connected to the gas sensor 1 and the voice broadcast module 2 respectively, and is used to control the operation of the gas sensor 1 and control the voice broadcast content of the voice broadcast module 2 according to the detection result.

[0057] Power supply module 4 is used to provide operating power to the device;

[0058] The housing 5 houses the gas sensor 1, the voice broadcast module 2, the main controller 3, and the power supply module 4. A voice output hole is provided at a preset position in the housing 5.

[0059] A handle 6 is located on one side of the housing 5 for easy handholding;

[0060] The voice broadcast module 2 includes a language conversion module 7 and a speaker 8, which are used to receive the user's voice broadcast language requirements and broadcast in the corresponding language. The speaker 8 is used to play the voice content output by the language conversion module 7.

[0061] The display screen 9 is located at a preset position on the front of the housing 5 and is used to display the test result;

[0062] The intelligent adjustment module 10 is connected to the display screen 9. The intelligent adjustment module 10 has a built-in light sensor, which is used to detect the light intensity of the surrounding environment so that the intelligent adjustment module 10 can adjust the brightness of the display screen 9 according to the light intensity.

[0063] The positioning module 11 is connected to the main controller 3 and is used to acquire the location information of the device in real time, associate the location information with the detection result, and send the association result to the main controller 3 after determining the association result.

[0064] The light indicator module 12 is connected to the main controller 3. When the main controller 3 determines that the gas concentration is abnormal, it controls the light indicator module 12 to emit light of different colors.

[0065] A replaceable filter module 13 is provided at the air inlet of the gas sensor 1. The replaceable filter module 13 is designed to be detachable and is used to filter the gas entering the gas sensor 1.

[0066] The air intake 14 is located at the detection end of the gas sensor 1 and is used to connect a hose, which is used by the user to detect gas in hazardous areas.

[0067] The self-cleaning module 15 includes a miniature fan 16 and a jet device 17. The miniature fan 16 generates airflow to blow away dust and impurities from the surface of the gas sensor 1, and the jet device 17 sprays out cleaning gas to clean the gas sensor 1.

[0068] As described above, even when users are busy or have poor visibility, they can promptly understand gas detection results by listening to voice commands. Furthermore, it caters to the language needs of different users, greatly improving ease of use, especially in multilingual environments or international work scenarios.

Claims

1. A handheld gas detection device with voice function, characterized in that, include: Gas sensors are used to detect the concentration of gases in the environment and output detection signals; The voice broadcast module is communicatively connected to the gas sensor and is used to broadcast the detection results aloud after receiving the detection results from the gas sensor. The main controller is connected to the gas sensor and the voice broadcast module respectively, and is used to control the operation of the gas sensor and control the voice broadcast content of the voice broadcast module according to the detection result. The power supply module is used to provide operating power to the device; The housing contains the gas sensor, the voice broadcast module, the main controller, and the power supply module. A voice output hole is provided at a preset position in the housing. A handle is provided on one side of the housing for easy handheld use; It also includes a self-cleaning module, which includes a micro fan and a jet device. The micro fan is used to generate airflow to blow away dust and impurities on the surface of the gas sensor, and the jet device is used to spray cleaning gas to clean the gas sensor.

2. The handheld gas detection device with voice function according to claim 1, characterized in that, It also includes a display screen, which is located at a preset position on the front of the housing, for displaying the test results.

3. A handheld gas detection device with voice function according to claim 2, characterized in that, It also includes an intelligent adjustment module connected to the display screen. The intelligent adjustment module has a built-in light sensor that detects the ambient light intensity so that the intelligent adjustment module can adjust the brightness of the display screen according to the light intensity.

4. A handheld gas detection device with voice function according to claim 1, characterized in that, It also includes a positioning module, which is connected to the main controller, for acquiring the device's location information in real time, associating the location information with the detection results, and sending the association results to the main controller after determining the association results.

5. A handheld gas detection device with voice function according to claim 1, characterized in that, It also includes a light indicator module connected to the main controller. When the main controller determines that the gas concentration is abnormal, it controls the light indicator module to emit light of different colors.

6. A handheld gas detection device with voice function according to claim 1, characterized in that, It also includes a replaceable filter module, which is located at the air inlet of the gas sensor. The replaceable filter module is designed to be detachable and is used to filter the gas entering the gas sensor.

7. A handheld gas detection device with voice function according to claim 1, characterized in that, It also includes an air intake port, located at the detection end of the gas sensor, for connecting a hose, which is used by the user to perform gas detection in hazardous areas.

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