Gas Concentration Detection and Alarm System Based on 51 Microcontroller

Gas Concentration Detection and Alarm System Based on 51 Microcontroller (Proteus Simulation + Program + Design Report + Schematic + Explanation Video)

Simulation software: Proteus 7.8 and above

Program Compiler: Keil 4/Keil 5

Programming Language: C

Design Number: S0096

The gas concentration detection and alarm system based on the 51 microcontroller uses LCD1602 to display the gas alarm value and the detected gas concentration value.

2. The gas alarm value can be adjusted by pressing a button.

3. When the gas concentration is below the alarm value, the green working indicator light is on. When the gas concentration exceeds the threshold, the buzzer alarms, the ventilation system works, and the red working indicator light is on.

4. The ADC0832 is used to collect the voltage change simulated by the sliding potentiometer as the gas sensor.

It should be noted that the simulated 51 microcontroller chip is compatible; AT89C51 and AT89C52 are specific models of the 51 microcontroller, and the core is the same. In the same schematic, regardless of whether it is STC or AT, the pin functions are the same, the program is compatible, and the chip can be replaced with STC89C52/STC89C51/AT89C52/AT89C51 and other 51 microcontroller chips.

[Tencent Document] S0096 Cloud Disk Link

https://docs.qq.com/doc/DS2V1S2F3b0xiSkNw

The following are the display images of this design data:

The explanation video includes simulation operation explanation and code explanation.

With the in-depth development of modern industrial production and scientific research, gas, as an efficient and clean energy carrier and an important chemical raw material, has been widely used in many fields. Especially in the coal energy industry, petrochemical, metallurgy, electronic semiconductor manufacturing, and laboratory environments, the demand for gas is increasing day by day. However, the physical and chemical properties of gas determine that it has a high flammability and explosiveness under certain concentration conditions. Once leaked and reaches a certain concentration ratio, it is easy to cause fire or even explosion accidents. These accidents can not only lead to significant property losses but also threaten the safety and health of personnel.

Therefore, it is crucial to establish an accurate and efficient gas concentration monitoring and early warning system to ensure that the gas in the working environment remains within a safe threshold. This course design is aimed at this practical demand, proposing to use the classic 51 series microcontroller as the control core, combined with the powerful Proteus simulation software for system development and verification. By integrating hardware circuit design and embedded programming technology, we will design a gas alarm system that can detect gas concentration in real-time and accurately and has intelligent early warning functions.

The differences between Proteus simulation and physical products:

1. Operating Environment: Proteus simulation runs on a computer, while the physical product runs on a hardware circuit board.

2. Debugging Method: In Proteus simulation, you can easily perform step-by-step debugging and observe variable changes, while in the physical product, you need to debug through a debugger or serial output.

3. Circuit Connection Method: In Proteus simulation, you can modify circuit connections through software settings, while in the physical product, you need to modify through hardware circuit boards and connecting wires.

4. Operating Speed: Proteus simulation usually runs faster than physical products because simulation is based on computer operation, while physical products have to consider physical limitations and device response times.

5. Function Implementation: In Proteus simulation, you can implement different functions through software settings, while in the physical product, you need to implement according to circuit design and device performance.

Data design includes simulation, program code, explanation video, functional requirements, design report, software and hardware design block diagrams, etc.

0. Common usage issues and solutions – must read!!!!

1. Program

2. Proteus simulation

3. Functional requirements

4. Software and hardware flowcharts

5. Project proposal

6. Design report

7. Schematic diagram

8. Explanation video

Altium Designer installation and cracking

KEIL + Proteus microcontroller simulation design tutorial

KEIL installation and cracking

MQ-7.pdf

Proteus component search

Proteus installation

Proteus simple usage tutorial

Microcontroller learning materials

Related data sheets

Defense skills

Common descriptions for design reports

Double-click to open and find the Jia Sheng microcontroller 51 STM32 microcontroller course graduation design.url

Data download link:

https://docs.qq.com/doc/DS2V1S2F3b0xiSkNw

More resources click the link below:

https://docs.qq.com/sheet/DS0xIa0llTmtNakRW