Laser household combustible gas detector supporting remote upgrading

Abstract

The utility model provides a laser household combustible gas detector supporting remote upgrading, which comprises a laser household combustible gas detector body. The laser household combustible gas detector body is provided with a wireless multimode communication module, an antenna, an MCU module, a laser methane sensor module, an external SPI flash chip, a key module, an LED lamp indication module, a sound alarm module and a power supply module; the wireless multimode communication module, the laser methane sensor module, the external SPI flash chip, the key module, the LED lamp indication module, the sound alarm module and the power supply module are electrically connected with the MCU module; and the wireless multimode communication module is also electrically connected with the antenna and comprises an NB-IOT (Narrow Band Internet of Things) communication module, a Cat.1 communication module and a Bluetooth communication module. The wireless multi-mode communication module and the external SPI flash chip are arranged, so that hardware support is provided for remote upgrading.

Description

Technical Field

[0001] The utility model relates to a combustible gas detector, in particular to a laser household combustible gas detector supporting remote upgrading. Background Art

[0002] Household combustible gas detectors, also called gas detectors, are mainly used to detect household natural gas leaks. Once the leakage concentration of natural gas reaches the set warning value, the household combustible gas detector will emit sound and light alarm signals to remind relevant personnel to take effective measures immediately, or activate the linkage device to eliminate the danger.

[0003] Currently, there are many types of household combustible gas detectors, such as those listed under Chinese utility model patents with publication numbers CN219017079U, CN218568179U, and CN217443163U. With the continuous development and iteration of various technologies, the inherent programs built into household combustible gas detectors may not always meet the basic performance requirements of household combustible gas detectors. Firmware upgrades can effectively resolve existing bugs, compatibility issues, and other issues, providing more convenient and user-friendly functions. However, the programs stored in current household combustible gas detectors cannot be directly read or modified. Therefore, when the firmware program data needs to be upgraded, existing laser household combustible gas detectors must be upgraded via a wired method. This wired upgrade method consumes a lot of manpower and time costs, and may cause upgrade errors due to human factors, affecting or even damaging the basic performance of the laser household combustible gas detector.

[0004] Therefore, it is necessary to provide a laser household combustible gas detector that supports remote upgrading. Utility Model Content

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The utility model provides a laser household combustible gas detector that supports remote upgrading, comprising a laser household combustible gas detector body, wherein the laser household combustible gas detector body is provided with: a wireless multi-mode communication module, an antenna, an MCU module, a laser methane sensor module, an external SPI flash chip, a button module, an LED light indication module, an audio alarm module, and a power supply module;

[0007] The wireless multi-mode communication module, the laser methane sensor module, the external SPI flash chip, the button module, the LED light indicator module, the sound alarm module and the power supply module are all electrically connected to the MCU module;

[0008] The wireless multi-mode communication module is also electrically connected to the antenna and includes an NB-IOT communication module, a Cat.1 communication module and a Bluetooth communication module.

[0009] Based on the above, the external SPI flash chip uses FLASH-FM25F01C, the NB-IOT communication module in the wireless multi-mode communication module uses the BC260Y chip, the Cat.1 communication module uses the EC800E chip, the Bluetooth communication module uses the HJ581 chip, and the laser methane sensor module uses the HM-LS01.

[0010] Based on the above, the wireless multi-mode communication module is connected to the Internet of Things cloud platform through the NB-IOT communication module or the Cat.1 communication module; the wireless multi-mode communication module is connected to the mobile terminal through the Bluetooth communication module, and the mobile terminal is connected to the Internet of Things cloud platform through the Internet.

[0011] Based on the above, the wireless multi-mode communication module is also connected to the wireless valve control alarm through the Bluetooth communication module.

[0012] Based on the above, the LED light indicator module is provided with a status indicator light for normal, fault and alarm status prompts, a life status indicator light for indicating whether the sensor life has expired and a networking status indicator light for indicating the networking status of the detector.

[0013] Based on the above, the status indicator light is a composite indicator light, green indicates normal monitoring status, yellow indicates fault status, and red indicates alarm status. After successful networking, the networking status indicator light turns green.

[0014] Based on the above, the sound alarm module is a buzzer module.

[0015] Based on the above, the power supply module is a battery module.

[0016] The present invention has substantial features and advancements over the prior art. Specifically:

[0017] 1. This utility model incorporates a wireless multi-mode communication module and an external SPI flash chip, providing hardware support for remote upgrades of laser household combustible gas detectors. By leveraging the advantages of wireless multi-mode communication, it enables fully wireless remote upgrades while online, eliminating the labor and time costs associated with wired upgrades.

[0018] 2. The utility model is connected to the mobile terminal through a Bluetooth communication module, and the mobile terminal is then connected to the Internet of Things cloud platform through the Internet. When the detector cannot be upgraded online, the upgrade program of the mobile terminal is downloaded to the detector through the Bluetooth communication module for wireless remote upgrade in an offline state. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 It is a principle block diagram of the utility model.

[0021] In the figure: 1 is the MCU module, 2 is the laser methane sensor module, 3 is the button module, 4 is the Internet of Things cloud platform, 5 is the wireless multi-mode communication module, 6 is the antenna, 7 is the sound alarm module, 8 is the LED light indication module, 9 is the power supply module, and 10 is the mobile terminal. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0023] like Figure 1 and Figure 2 As shown, this embodiment provides a laser household combustible gas detector that supports remote upgrading, including a laser household combustible gas detector body, wherein the laser household combustible gas detector body is provided with a wireless multi-mode communication module 5, an antenna 6, an MCU module 1, a laser methane sensor module 2, an external SPI flash chip, a button module 3, an LED light indicator module 8, an audio alarm module 7, and a battery module 9;

[0024] The wireless multi-mode communication module 5 is used for wireless communication, the laser methane sensor module 2 is used for real-time detection of combustible gas in the environment, the external SPI flash chip is used for storing upgrade programs, and the battery module 9 is used to power the entire detector;

[0025] The wireless multi-mode communication module 5, the laser methane sensor module 2, the external SPI flash chip, the button module 3, the LED light indicator module 8, the sound alarm module 7 and the battery module 9 are all electrically connected to the MCU module 1;

[0026] The wireless multi-mode communication module 5 is also electrically connected to the antenna 6, and includes an NB-IOT communication module, a Cat.1 communication module and a Bluetooth communication module.

[0027] In this embodiment, the three wireless transmission channels of NB-IOT, Cat.1 and Bluetooth integrated on the wireless multi-mode communication module 5 can be connected to the Internet of Things cloud platform 4, the mobile terminal 10 and the wireless valve control alarm respectively;

[0028] When the laser household combustible gas detector communicates with the IoT cloud platform 4, it communicates via NB-IOT or Cat.1 to achieve online data upload and download; when one network signal is poor, it can switch to another network to ensure that the laser household combustible gas detector can be online in real time;

[0029] The laser household combustible gas detector can also be connected to the mobile terminal 10 via a Bluetooth network, and the mobile terminal 10 is then connected to the Internet of Things cloud platform 4 via the Internet to achieve offline communication with the Internet of Things cloud platform 4;

[0030] The laser household combustible gas detector is also connected to a single or multiple wireless valve control alarms via a Bluetooth network to achieve the transmission of control commands of the wireless valve control alarms;

[0031] The NB-IOT communication module uses the BC260Y chip, the Cat.1 communication module uses the EC800E chip, and the Bluetooth communication module uses the HJ581 chip. The IoT cloud platform 4 uses the Xiangyun IoT platform.

[0032] The external SPI flash chip in this embodiment is used to store data files to be upgraded when the detector performs a remote upgrade task, and adopts FLASH-FM25F01C.

[0033] After the laser household combustible gas detector of this embodiment is installed, first use the mobile terminal 10 to add the device information to the Internet of Things cloud platform 4, and then use the APP or applet in the mobile terminal 10 to scan the QR code on the shell 11 to pair the mobile terminal 10 with the laser household combustible gas detector, and the laser household combustible gas detector with the wireless valve control alarm. The pairing and binding can be achieved using existing computer programs.

[0034] During daily operation, MCU module 1 obtains the natural gas concentration in the environment detected in real time by laser methane sensor module 2 and compares it with a set threshold. If the threshold is exceeded, an alarm is immediately generated. First, real-time detection and alarm information is uploaded to IoT cloud platform 4 via NB-IOT or Cat.1, serving as the data basis for subsequent fire alarm linkage and other functions. Second, the alarm information is locally reported via LED indicator module 8 and audible alarm module 7. Third, the alarm information is transmitted via Bluetooth to one or more wireless valve control alarms. The solenoid valves of these wireless valve control alarms execute the alarm information, shutting off the gas pipeline.

[0035] When a program upgrade is needed, the IoT cloud platform 4 typically sends a remote upgrade command to the wireless multimode communication module 5 via the NB-IOT or Cat.1 network. The wireless multimode communication module 5 then stores the collected program data files in the SPI flash chip. After a reset, it enters the boot loader and loads the program data files into the MCU module 1, completing the remote upgrade. If the detector cannot communicate with the IoT cloud platform 4 via the NB-IOT or Cat.1 network for an online upgrade, the upgrade program retrieved from the IoT cloud platform 4 can be downloaded to the detector via the Bluetooth communication module by the mobile terminal 10 for an offline wireless remote upgrade.

[0036] The laser methane sensor module 2 in this embodiment adopts the HM-LS01 model laser methane sensor, which has the characteristics of strong anti-interference ability, fast response speed and high stability, and is used to detect the concentration value of natural gas in the environment in real time.

[0037] The MCU module 1 in this embodiment is a mature, user-configurable technology. It specifically includes an MCU and a power management circuit. The MCU is connected to the power management circuit, which in turn is connected to the power supply module. The MCU is the detector's main control chip, controlling the operation of all other modules.

[0038] The LED light indicator module 8 in this embodiment is configured to be used as a status indicator light, a life status indicator light, and a network status indicator light;

[0039] The status indicator light is used to indicate normal, fault and alarm status, and adopts a red, yellow and green composite indicator light, that is, green indicates normal monitoring status, yellow indicates fault status, and red indicates alarm status;

[0040] The life status indicator is used to indicate whether the sensor life has expired. When the detector is installed and powered on, the MCU module 1 will automatically compare the usage time of the laser methane sensor with the time when it was shipped from the factory. If the maximum usage time set in the MCU module 1 is exceeded, the life status indicator will light up and issue a failure alarm.

[0041] The network status indicator is a composite red, yellow, and green indicator light that indicates the network connection status. Yellow and green indicate the status of NB-IOT or Cat.1 network connections, while red indicates the status of Bluetooth network connections. When the detector is installed and powered on, the MCU module 1 monitors whether the antenna 6 and the IoT cloud platform 4 have successfully connected. If so, the network status indicator lights up green to indicate a successful connection. If not, the network status indicator lights up yellow to indicate a failed connection. The MCU module 1 also monitors whether the antenna 6 and the Bluetooth network have successfully connected. If so, the network status indicator lights up red to indicate a successful connection.

[0042] The sound alarm module 7 in this embodiment uses a 4V-80dB buzzer to ensure that there is a sufficiently loud alarm sound when an alarm is sounded.

[0043] The button module 3 in this embodiment includes a self-test button for performing a status self-test on the detector and a reset upgrade button for resetting the detector;

[0044] The self-test button uses a 12V-50mA touch switch. When you press the self-test button, the MCU module 1 will automatically enter the self-test program (which can be achieved using existing computer programs). The detector starts the self-test mode to check whether the status of the detector is normal.

[0045] The reset and upgrade button uses a 12V-50mA touch switch. When the reset and upgrade button is pressed, the MCU module 1 will automatically enter the reset and upgrade program (which can be achieved using existing computer programs). The detector starts the automatic upgrade mode and loads the program data file from the SPIflash chip to the MCU module 1 to complete the remote upgrade task.

[0046] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A laser household combustible gas detector supporting remote upgrade, comprising a laser household combustible gas detector body, characterized in that: The laser household combustible gas detector body is provided with: a wireless multi-mode communication module, an antenna, an MCU module, a laser methane sensor module, an external SPI flash chip, a button module, an LED light indicator module, a sound alarm module and a power supply module; The wireless multi-mode communication module, the laser methane sensor module, the external SPI flash chip, the button module, the LED light indicator module, the sound alarm module and the power supply module are all electrically connected to the MCU module; The external SPI flash chip is used to store the upgrade program; The wireless multi-mode communication module is also electrically connected to the antenna, and includes an NB-IOT communication module, a Cat.1 communication module, and a Bluetooth communication module; The wireless multi-mode communication module is connected to the Internet of Things cloud platform through the NB-IOT communication module or the Cat.1 communication module; the wireless multi-mode communication module is connected to the mobile terminal through the Bluetooth communication module, and the mobile terminal is connected to the Internet of Things cloud platform through the Internet.

2. The laser household combustible gas detector supporting remote upgrade according to claim 1 is characterized in that: The external SPI flash chip uses FLASH-FM25F01C, the NB-IOT communication module in the wireless multi-mode communication module uses the BC260Y chip, the Cat.1 communication module uses the EC800E chip, the Bluetooth communication module uses the HJ581 chip, and the laser methane sensor module uses the HM-LS01.

3. The laser household combustible gas detector supporting remote upgrade according to claim 2 is characterized in that: The wireless multi-mode communication module is also connected to the wireless valve control alarm through the Bluetooth communication module.

4. The laser household combustible gas detector supporting remote upgrade according to claim 1 is characterized in that: The LED light indicator module is provided with a status indicator light for normal, fault and alarm status prompts, a life status indicator light for indicating whether the sensor life has expired, and a networking status indicator light for indicating the networking status of the detector.

5. The laser household combustible gas detector supporting remote upgrade according to claim 4 is characterized in that: The status indicator light is a composite indicator light, green indicates normal monitoring status, yellow indicates fault status, and red indicates alarm status; The network status indicator light is a composite indicator light. The relevant status of the NB-IOT or Cat.1 network connection is indicated by yellow or green, and the relevant status of the Bluetooth network connection is indicated by red.

6. The laser household combustible gas detector supporting remote upgrade according to claim 1 is characterized in that: The sound alarm module is a buzzer module.

7. The laser household combustible gas detector supporting remote upgrade according to any one of claims 1 to 6, characterized in that: The power supply module is a battery module.

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