Novel multifunctional gas detector

Abstract

The utility model belongs to the technical field of gas detection, and particularly provides a novel multifunctional gas detector which comprises an instrument main body control unit, a gas sampling mode unit, a gas sensor unit and a communication mode unit, the gas sampling mode unit, the gas sensor unit and the communication mode unit are all connected with the instrument main body control unit, and the gas sampling mode unit is used for collecting external gas; the gas sensor unit is used for detecting collected external gas so as to output a gas detection signal; and the instrument main body control unit is used for analyzing the gas detection signal to obtain a gas detection analysis result, and sending out the gas detection analysis result through the communication mode unit. The novel multifunctional gas detector provided by the utility model meets diversified detection requirements, and is high in adaptability and wide in detection range.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, and more specifically, to a novel multifunctional gas detector. Background Art

[0002] Currently, most equipment configurations on the market only meet a few single functions, such as single network detection, single type of gas detection or single sampling method detection. The functions are single and cannot meet diverse detection needs. Summary of the Invention

[0003] In order to solve the deficiencies in the prior art, the purpose of the present invention is to provide a new multifunctional gas detector that meets diverse detection needs, has strong adaptability and a wide detection range.

[0004] As the first aspect of the present utility model, a new multifunctional gas detector is provided, including an instrument main body control unit, a gas sampling mode unit, a gas sensor unit and a communication mode unit, wherein the gas sampling mode unit, the gas sensor unit and the communication mode unit are all connected to the instrument main body control unit, wherein the gas sampling mode unit is used to collect external gas; the gas sensor unit is used to detect the collected external gas to output a gas detection signal; the instrument main body control unit is used to analyze the gas detection signal to obtain a gas detection analysis result, and send the gas detection analysis result through the communication mode unit.

[0005] Furthermore, the instrument main body control unit includes a power supply, an amplifier, an analog-to-digital converter, an MCU, a communication interface and a display screen, wherein the power supply supplies power to the instrument main body control unit, the gas sampling mode unit, the gas sensor unit and the communication mode unit; the amplifier is used to amplify the gas detection analog signal output by the gas sensor unit to obtain an amplified gas detection analog signal; the analog-to-digital converter is used to convert the amplified gas detection analog signal into a gas detection digital signal; the MCU is used to analyze the gas detection digital signal to obtain the gas detection analysis result, and transmit the gas detection analysis result to the communication mode unit through the communication interface; the display screen is used to display the gas detection analysis result.

[0006] Furthermore, the gas sampling mode unit includes an active sampling unit and a passive sampling unit, the active sampling unit includes an air tube and an air pump, and the passive sampling unit includes a gas filter.

[0007] Furthermore, the gas sensor unit includes one or more of a methane sensor, a carbon monoxide sensor, an oxygen sensor, and a hydrogen sulfide sensor.

[0008] Furthermore, the communication mode unit includes one or more of a LoRa module, a Bluetooth module, a ZigBee module, a WiFi module, a GPRS module, a NB module, a Cat1 module, a 4G module and a 5G module.

[0009] The new multifunctional gas detector provided by the utility model has the following advantages: (1) it has more functions to meet diverse detection needs; (2) it has comprehensive network coverage, stable communication, and accurate positioning; (3) it has rich gas sensor principles, strong adaptability, and a wide detection range; (4) it has various gas sampling methods, and the best detection method can be selected according to the characteristics of the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention.

[0011] Figure 1 This is a structural diagram of the new multifunctional gas detector provided by the utility model. DETAILED DESCRIPTION

[0012] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the new multifunctional gas detector proposed in accordance with the utility model are described in detail below in conjunction with the accompanying drawings and preferred embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0013] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate for the embodiments of the present invention described herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatuses.

[0014] In this embodiment, a new multifunctional gas detector is provided. Figure 1As shown, the new multifunctional gas detector comprises a meter main control unit, a gas sampling mode unit, a gas sensor unit and a communication mode unit, the gas sampling mode unit, the gas sensor unit and the communication mode unit are connected with the meter main control unit, wherein the gas sampling mode unit is used for collecting external gas; the gas sensor unit is used for detecting the collected external gas to output a gas detection signal; the meter main control unit is used for analyzing the gas detection signal to obtain a gas detection analysis result, and sending the gas detection analysis result out through the communication mode unit.

[0015] Preferably, the meter main control unit comprises a power supply, an amplifier, an analog-to-digital converter, an MCU, a communication interface and a display screen, wherein the power supply supplies power to the meter main control unit, the gas sampling mode unit, the gas sensor unit and the communication mode unit to meet the power supply requirements of each part of the new multifunctional gas detector; the amplifier is used for amplifying the gas detection analog signal output by the gas sensor unit to obtain an amplified gas detection analog signal; the analog-to-digital converter is used for converting the amplified gas detection analog signal into a gas detection digital signal; the MCU is used for analyzing the gas detection digital signal to obtain the gas detection analysis result, and transmitting the gas detection analysis result to the communication mode unit through the communication interface; the display screen is used for displaying the gas detection analysis result. The gas detection analysis result includes gas type, gas concentration value and alarm signal.

[0016] It should be noted that the control processing of the meter main control unit meets all links from the sampled data to the real interaction.

[0017] Preferably, the gas sampling mode unit comprises an active sampling unit and a passive sampling unit, the active sampling unit comprises a gas pipe and a gas pump, and the passive sampling unit comprises a gas filter.

[0018] It should be noted that the active sampling unit is suitable for long-distance detection of gas environment and belongs to active detection, which can select the position of the sampled gas, increase the response speed, and further improve the detection accuracy through the flow rate calibration of the gas pump; the passive sampling unit is suitable for short-distance and natural gas detection environment and belongs to passive detection, the to-be-detected gas in the environment naturally diffuses to the gas sensor unit through the passive sampling unit, and then is detected by the gas sensor unit.

[0019] In this embodiment, the instrument main body control unit is used to select whether to use the active sampling unit to collect external gas or to use the passive sampling unit to collect external gas. The instrument main body control unit can also realize a combination of various configurations through signal control and accessories.

[0020] Preferably, the gas sensor unit includes one or more of a methane sensor, a carbon monoxide sensor, an oxygen sensor, and a hydrogen sulfide sensor. The gas sensor unit can detect various gases, including flammable and toxic gases, through catalytic combustion, electrochemical, infrared absorption, PID, and semiconductor principles. Because the gas sensor unit supports multiple principles, the selectivity and variety of detectable gases are greater, including but not limited to CH4, CO, H2S, and O2.

[0021] It should be noted that gas sensor units are available in 4-series, 7-series, or other series, depending on the specific product application. Gas sensor units are individually replaceable. Gas sensor units with different sensitivity principles can be paired with different interface processing circuits, making them adaptable to different types, quantities, and structures.

[0022] Preferably, the communication mode unit includes one or more of a LoRa module, a Bluetooth module, a ZigBee module, a WiFi module, a GPRS module, a NB module, a Cat1 module, a 4G module, and a 5G module. The module uses a TTL serial port for communication, and the meter main body control unit selects and switches different communication modules.

[0023] It should be noted that this new multifunctional gas detector can communicate through a variety of networks, including LoRa, BLE (Bluetooth), ZigBee, WiFi, GPRS, NB, Cat1, 4G, 5G, and other local area networks and wide area networks, and has a signal strength positioning function. Among them, LoRa, BLE, ZigBee, and WiFi are directly applied in local area networks and are suitable for transmission in self-built LANs. They are free and the protocols are customizable. GPRS, NB, Cat1, 4G, 5G, and other network communications can directly realize remote data exchange, eliminating the need for network construction and networking, making it more efficient and convenient.

[0024] In this embodiment, the network is used for data transmission and to implement relative positioning based on signal strength. Network transmission primarily involves transmitting processed values ​​collected by the meter to other remote devices via the network. Control and configuration parameters can also be transmitted from the remote device to the meter via the network. Furthermore, when communicating over the local network, the relative position of the device can be determined by quantitatively grading the signal strength of the connected devices, thus enabling device location positioning.

[0025] In this embodiment, the instrument's main control unit selects the appropriate communication method, enabling compatibility between different communication options. Depending on the actual on-site connection requirements, a local area network (LAN) or a remote public network can be selected. The LAN ensures internal information flow, guaranteeing privacy and security from the source. The remote public network allows for remote reception and control of instrument information. Furthermore, when selecting the LAN configuration, relative position determination and processing can be achieved by analyzing the signal strength and quality of the received information, thereby better facilitating on-site regional inspection and matching coverage. For the public network, a corresponding accompanying positioning function can analyze and process the device's absolute position and trajectory.

[0026] The working principle of the new multifunctional gas detector provided by the present utility model is as follows: according to the site requirements, the instrument main body control unit selects whether to use the active sampling unit or the passive sampling unit to collect external gas through the communication interface. At the same time, according to the site network requirements, the instrument main body control unit selects the corresponding network communication method through the communication interface; at the same time, according to the type of gas to be detected and the technical requirements, the instrument main body control unit selects the corresponding gas sensor through the communication interface; after all the above selections are completed, the new multifunctional gas detector starts to power on and work, the gas sampling method unit collects external gas; the gas sensor unit detects the collected external gas to output a gas detection signal; the instrument main body control unit analyzes the gas detection signal to obtain a gas detection analysis result, and sends the gas detection analysis result through the selected communication method.

[0027] The new multifunctional gas detector provided by the utility model has multifunctionality embodied in multiple transmission network modes, multiple detection gas types, multiple sampling detection modes, etc. By integrating multiple network modes, multiple types of gas detection and multiple sampling modes, and through control and coordination selection, the product function combination that best suits market demand is achieved, which will fill the market gap and provide users with a comprehensive and efficient gas detection solution.

[0028] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the present profession can make some changes or modifications to the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A new multifunctional gas detector, characterized in that: It includes an instrument main body control unit, a gas sampling mode unit, a gas sensor unit and a communication mode unit, and the gas sampling mode unit, the gas sensor unit and the communication mode unit are all connected to the instrument main body control unit, wherein the gas sampling mode unit is used to collect external gas; the gas sensor unit is used to detect the collected external gas to output a gas detection signal; the instrument main body control unit is used to analyze the gas detection signal to obtain a gas detection analysis result, and send the gas detection analysis result through the communication mode unit.

2. A novel multifunctional gas detector according to claim 1, characterized in that: The instrument main body control unit includes a power supply, an amplifier, an analog-to-digital converter, an MCU, a communication interface and a display screen, wherein the power supply supplies power to the instrument main body control unit, the gas sampling mode unit, the gas sensor unit and the communication mode unit; the amplifier is used to amplify the gas detection analog signal output by the gas sensor unit to obtain an amplified gas detection analog signal; the analog-to-digital converter is used to convert the amplified gas detection analog signal into a gas detection digital signal; the MCU is used to analyze the gas detection digital signal to obtain the gas detection analysis result, and transmit the gas detection analysis result to the communication mode unit through the communication interface; the display screen is used to display the gas detection analysis result.

3. A novel multifunctional gas detector according to claim 1, characterized in that: The gas sampling mode unit includes an active sampling unit and a passive sampling unit. The active sampling unit includes an air pipe and an air pump, and the passive sampling unit includes a gas filter.

4. A novel multifunctional gas detector according to claim 1, characterized in that: The gas sensor unit includes one or more of a methane sensor, a carbon monoxide sensor, an oxygen sensor, and a hydrogen sulfide sensor.

5. A novel multifunctional gas detector according to claim 1, characterized in that: The communication mode unit includes one or more of a LoRa module, a Bluetooth module, a ZigBee module, a WiFi module, a GPRS module, a NB module, a Cat1 module, a 4G module and a 5G module.

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