Intelligent environment monitoring system based on chip

Abstract

The utility model belongs to the technical field of gas monitoring, and particularly discloses an intelligent environment monitoring system based on a chip, the monitoring system comprises a main control module, a sensor module and a fan, the main control module comprises a development board and a chip, and the sensor module comprises a methane sensor; the development board is integrated with a Wi-Fi wireless communication circuit and is respectively connected with the chip and the fan, and the chip is connected with the methane sensor; the main control module is installed in the range hood shell, the sensor module is arranged outside the range hood shell, and the fan is integrated in an air draft channel of the range hood. The range hood development board is high in integration level and small in integration complexity with a range hood, meanwhile, the development board adopted by the range hood development board integrates a Wi-Fi wireless communication function and a processing core, the requirement for an external communication module can be reduced, the system complexity and cost can be reduced, and remote monitoring of a mobile phone can be achieved through a network connection function.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas monitoring, and in particular relates to a chip-based intelligent environment monitoring system. Background Art

[0002] A gas monitor, also known as a gas detector, is a specialized instrument capable of detecting leaks of combustible, toxic, or hazardous gases in the air in real time. Its core component is the sensor, which senses changes in gas concentration in the environment and converts them into electrical signals. External circuitry then processes these signals to detect and display gas concentrations. Gas monitors are important electronic instruments with widespread applications in industry and environmental monitoring.

[0003] Natural gas leaks can cause serious fires or even explosions. Installing an environmental monitoring system in the kitchen can effectively monitor for leaks. Range hoods are used to remove cooking fumes from the kitchen. Existing technologies offer solutions that integrate environmental monitoring systems with range hoods. However, existing monitoring systems lack integration, are bulky due to the excessive number of modules, and are complex to install within range hoods. Furthermore, monitoring systems are typically required to operate continuously for extended periods of time and provide immediate response. However, existing monitoring systems are characterized by high power consumption and low intelligence, which do not meet the low power and real-time requirements of monitoring systems. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a chip-based intelligent environment monitoring system to address the deficiencies of the above-mentioned existing technologies. The system collects data through various sensors and then displays it on a display screen. It can also be remotely monitored in real time on a mobile phone cloud platform, and can also automatically or manually turn on or off the ventilation fan in the range hood. The system has the characteristics of integration and intelligence.

[0005] To achieve the above-mentioned objectives, one or more embodiments of the present disclosure provide a chip-based intelligent environment monitoring system, comprising: a main control module, a sensor module and a fan, wherein the main control module comprises a development board and a chip, and the sensor module comprises a methane sensor; the development board integrates a Wi-Fi wireless communication circuit and is respectively connected to the chip and the fan, and the chip is connected to the methane sensor; the main control module is installed inside the range hood housing, the sensor module is outside the range hood housing, and the fan is integrated in the exhaust duct of the range hood.

[0006] Furthermore, the sensor module also includes a formaldehyde sensor and a temperature and humidity sensor, and the formaldehyde sensor and the temperature and humidity sensor are connected to the chip.

[0007] Furthermore, the formaldehyde sensor can simultaneously measure the formaldehyde concentration and carbon dioxide concentration in the air.

[0008] Furthermore, the methane sensor, formaldehyde sensor, and temperature and humidity sensor are provided with oil-proof and breathable membranes.

[0009] Furthermore, the intelligent environment monitoring system also includes a display screen, which is connected to the development board.

[0010] Furthermore, the display screen is mounted on the front panel of the range hood housing.

[0011] Furthermore, the intelligent environment monitoring system also includes a buzzer, which is connected to the development board.

[0012] Furthermore, the buzzer is installed inside the range hood housing by screws.

[0013] Furthermore, the main control module is installed inside the range hood housing by screws.

[0014] Furthermore, the development board is connected to the mobile phone cloud platform via the network, and the cloud platform is connected to the mobile phone via the network.

[0015] The beneficial effects of one or more of the above technical solutions are:

[0016] The environmental monitoring system proposed in this utility model has a high degree of integration and a compact system size, reducing the complexity of integrating the environmental monitoring system with the range hood. The development board used in this environmental monitoring system integrates Wi-Fi wireless communication circuitry, which enables intelligent monitoring while reducing the need for external communication modules, thereby improving the integration and intelligence of the monitoring system. The chip based on the development board has a minimal power consumption level. Compared with existing monitoring systems with higher power consumption, this monitoring system is more energy-efficient, saves electricity costs, and effectively ensures the long-term stable operation of the monitoring system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the drawings, the sizes and proportions do not represent the sizes and proportions of actual products. The drawings are merely illustrative and some non-essential elements or features are omitted for clarity.

[0018] Figure 1 It is a connection diagram of each module of the system in the embodiment of the present utility model.

[0019] Figure 2 This is the environmental monitoring system circuit in the embodiment of the utility model. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0023] In the present invention, the directions or positional relationships indicated by terms such as "upper", "lower", "side", and "bottom" are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention. They do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

[0024] In this utility model, terms such as "connection" should be interpreted broadly, meaning that they can be fixedly connected, integrally connected, or detachably connected; they can be directly connected or indirectly connected through an intermediary. Those skilled in the art will be able to determine the specific meaning of these terms in this utility model based on specific circumstances, and they should not be construed as limiting this utility model.

[0025] In the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] The intelligent environment monitoring system provided by the utility model is applied to a range hood, which includes a shell, an air intake port, and an air exhaust port, wherein the shell includes a front panel and left and right side panels, and an air exhaust channel is between the air intake port and the air exhaust port.

[0027] like Figure 1 As shown in the figure, the chip-based intelligent environmental monitoring system includes a main control module, a sensor module, and a fan. The main control module includes the HI3861 development board and the AIR001 chip. The sensor module includes the MQ-2 methane sensor, the SGP30 formaldehyde sensor, and the DHT11 temperature and humidity sensor. In addition, the intelligent environmental monitoring system also includes an SSD1306 display screen and a buzzer.

[0028] The HI3861 development board is based on the HI3861 chip, which integrates Wi-Fi wireless communication and a processing core. This wireless communication allows the HI3861 to connect to a cloud platform over the internet. The HI3861 uploads data collected by various sensors to the cloud platform, allowing users to connect to the cloud platform via their mobile phones for real-time remote monitoring of the system.

[0029] The development board HI3861 is connected to the chip AIR001, the display screen SSD1306, the buzzer, and the fan respectively, and the chip AIR001 is connected to the methane sensor MQ-2.

[0030] The HI3861 development board, AIR001 chip, and buzzer are secured inside the range hood with screws. The display, an SSD1306, is mounted on the front panel of the range hood. The fan is located behind the exhaust duct. The sensor is located on the right side of the range hood housing. An oil-resistant, breathable membrane is applied to the sensor surface to protect it from oil contamination. The monitoring system has extremely low power consumption and can remain in a constantly operating state, ensuring real-time monitoring of the kitchen environment.

[0031] The sensor module monitors the kitchen environment. The SSD1306 display screen integrated in the range hood displays the methane concentration, formaldehyde concentration, temperature, and humidity in the kitchen monitored by the sensor module in real time. When the methane sensor MQ-2 detects that the methane concentration exceeds the set threshold, the chip HI3861 will first control the fan in the range hood's exhaust duct to turn on, and at the same time, the buzzer will alarm and the mobile phone will receive a message reminder.

[0032] The specific connection relationship of the component circuits of each module of the monitoring system is as follows:

[0033] In this embodiment, we have made further technical improvements to the present utility model. Specifically, Figure 2 As shown, the SDA and SCL pins of the SSD1306 display are connected to pins 13 and 14 of the development board HI3861, respectively, while its VCC and GND pins are connected to the +3.3V power supply and power ground, respectively, ensuring the normal operation of the display. In the SSD1306 display module, the VCC pin is connected to the positive power supply, and the GND pin is connected to the power ground. The SCL pin is the clock signal pin, used for clock signal transmission in I2C communication, and the SDA pin is the data signal pin, used for data signal transmission in I2C communication.

[0034] Similarly, as another technical improvement, the SGP30 formaldehyde sensor module's SDA and SCL pins are connected to pins 8 and 9 of the AIR001 chip, respectively, while its VCC and GND pins are connected to the +5V power supply and ground, respectively, ensuring stable formaldehyde data acquisition. The VCC pin of the SGP30 formaldehyde sensor module is connected to the positive power supply (typically 3.3V or 5V), the GND pin is connected to ground, the SDA pin is the serial address and data input / output pin, and the SCL pin is the serial clock input. The SGP30 formaldehyde sensor can simultaneously measure the concentrations of CO2 and TVOC (Total Volatile Organic Compounds). The SGP30 formaldehyde sensor uses electrochemical gas sensing technology to measure CO2 concentration. It contains an electrochemical sensor element with an oxide electrode and a reference electrode. When CO2 molecules in the air enter the sensor and react with the electrolyte on the oxide electrode, a current change is generated. By measuring this current change, the CO2 concentration can be determined. The SGP30 formaldehyde sensor utilizes optical measurement technology, or MOS and electrochemical techniques, to measure TVOC concentrations. It contains a photosensor that senses light of a specific wavelength. When TVOC molecules in the air enter the sensor and react with the internal oxidant, oxidation products are produced. These products absorb light of a specific wavelength, causing the optical signal received by the photosensor to change. By measuring this change in optical signal, the TVOC concentration can be determined.

[0035] exist Figure 2 In the embodiment shown, the AOUT pin of the methane sensor MQ-2 module is connected to pin 16 of the chip AIR001, while its VCC and GND pins are connected to the +5V power supply and power ground, respectively, to ensure the accurate acquisition of methane data. The VCC pin of the methane sensor MQ-2 module is connected to the positive power supply, generally 3.3V or 5V, the DOUT pin is the analog signal output, the AOUT is the digital signal output, and the GND pin is the ground. The methane sensor MQ-2 is a commonly used gas sensor, mainly used to detect combustible gas or smoke in the air. The methane sensor MQ-2 sensor uses gas-sensitive materials. When it comes into contact with combustible gas or smoke, its conductivity will change. By measuring this change in conductivity, the concentration of combustible gas or smoke in the air can be detected. There is a heating element inside the sensor to accelerate the reaction between the gas-sensitive material and the gas, thereby improving the response speed and sensitivity of the sensor.

[0036] exist Figure 2In the illustrated embodiment, the DATA pin of the DHT11 temperature and humidity sensor module is connected to pin 19 of the AIR001 chip, while its VCC and GND pins are connected to the +5V power supply and power ground, respectively, to enable data collection. The VCC pin of the DHT11 temperature and humidity sensor module is connected to the positive power supply, typically 3.3V or 5V, and the DATA pin is used for communication with the chip. The DHT11 temperature and humidity sensor is a composite temperature and humidity sensor with a calibrated digital output. This digital output facilitates integration with a microprocessor or other digital system. The DHT11 temperature and humidity sensor utilizes a single bus protocol, enabling data transmission and control via a single data line. The DHT11 temperature and humidity sensor internally contains a resistive humidity sensor and an NTC temperature sensor, which measure humidity and temperature, respectively. The sensor is also connected to a high-performance 8-bit microcontroller to process the measurement data and output a calibrated digital signal. During measurement, the DHT11 temperature and humidity sensor first waits for a period of time to overcome an unstable state before receiving a start signal from the microprocessor. After receiving the start signal, the temperature and humidity sensor DHT11 will trigger a temperature and humidity collection, and convert the collected data into a digital signal for output.

[0037] like Figure 2 As shown, the fan's VCC and GND pins are connected to the +5V power supply and the collector of the NPN transistor, respectively. The transistor's emitter and base are connected to the power ground and pin 10 of the HI3861 development board, respectively, enabling intelligent fan control. Similarly, the buzzer's VCC and GND pins are connected to the +5V power supply and the collector of the NPN transistor, respectively. The transistor's emitter and base are connected to the power ground and pin 3 of the HI3861 development board, respectively, ensuring a timely alarm response.

[0038] like Figure 2 As shown, pins 20 and 1 of the AIR001 chip are connected to the GND and 3.3V power supply pins of the HI3861 development board, respectively, while pins 12 and 11 of the AIR001 chip are connected to pins 11 and 12 of the HI3861 development board, further enhancing the interoperability between the system components. Using the AIR001 chip for system development with an Arduino makes monitoring system development more convenient and easier to debug.

[0039] As an example, the chip in the development board uses the HI3861 chip launched by Huawei, which integrates a low-power Wi-Fi circuit.

[0040] Tests have shown that this system can monitor the concentration of harmful gases in the environment in real time. The monitoring system is reliable and has high practical application value.

[0041] The scope of protection of the present invention is limited solely by the claims. Thanks to the teachings of the present invention, those skilled in the art will readily recognize that alternative structures to the structures disclosed in the present invention may be used as viable alternative embodiments, and that the embodiments disclosed in the present invention may be combined to produce new embodiments, which also fall within the scope of the appended claims.

Claims

1. A chip-based intelligent environment monitoring system, characterized in that: include: A main control module, a sensor module and a fan, wherein the main control module includes a development board and a chip, and the sensor module includes a methane sensor; the development board integrates a Wi-Fi wireless communication circuit and is connected to the chip and the fan respectively, and the chip is connected to the methane sensor; the main control module is installed inside the range hood housing, the sensor module is outside the range hood housing, and the fan is integrated in the exhaust duct of the range hood.

2. The chip-based intelligent environment monitoring system according to claim 1, characterized in that: The sensor module further includes one or more of a formaldehyde sensor and a temperature and humidity sensor, and the formaldehyde sensor and the temperature and humidity sensor are connected to the chip.

3. The chip-based intelligent environment monitoring system according to claim 2, characterized in that: The formaldehyde sensor is used to simultaneously measure the formaldehyde concentration and carbon dioxide concentration in the air.

4. The chip-based intelligent environment monitoring system according to claim 1 or 2, characterized in that: The methane sensor, formaldehyde sensor, and temperature and humidity sensor are provided with oil-proof and breathable membranes.

5. The chip-based intelligent environment monitoring system according to claim 1, characterized in that: The intelligent environment monitoring system further comprises a display screen, which is connected to the development board.

6. The chip-based intelligent environment monitoring system according to claim 5, characterized in that: The display screen is mounted on the front panel of the range hood housing.

7. The chip-based intelligent environment monitoring system according to claim 1, characterized in that: The intelligent environment monitoring system further includes a buzzer, which is connected to the development board.

8. The chip-based intelligent environment monitoring system according to claim 7, characterized in that: The buzzer is installed inside the range hood housing by screws.

9. The chip-based intelligent environment monitoring system according to claim 1, characterized in that: The main control module is installed inside the range hood housing by screws.

10. The chip-based intelligent environment monitoring system according to claim 1, characterized in that: The development board is connected to the cloud platform via a network, and the cloud platform is connected to the mobile phone via a network.

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