Real time temperature alarm
Team members
Huang Haowei You Mingkai
Idea
This Project aims to create a system with raspberry-pie and python to real timely monitoring of temperature changes and issuing alerts (sound or text message (only current scenario)） when the temperature exceeds the set threshold
Setup
- raspberry-pi
- temperature sensors
- dupont line
- LED light or Buzzer（finally we choose twilio to send warnings）
Measurements
Connect and install a suitable system environment for Raspberry-Pi
Connect the sensor: Thermistor type B57861S (R0=10kΩ, B=3988Kelvin)
Write Python script: Create a Python script to read and print temperature and humidity data: record temperature data in real-time and visualize temperature trends using charts. Write temperature data to a file or database in a Python script. Use Matplotlib library or other data visualization tools to regularly read data and generate temperature change graphs
Temperature threshold alarm: Purpose: Set a temperature threshold, and when the temperature exceeds this threshold, Raspberry Pi will sound an alarm or perform specific actions. Implementation: Add judgment logic to the Python script. When the read temperature exceeds the set threshold, the GPIO pin of the Raspberry Pi can output a high level, driving a buzzer or LED light as an alarm signal
Results:
Firstly, we measured the real-time room temperature multiple times at intervals of 5 seconds at a temperature of approximately 22.7 degrees Celsius, and obtained the final image, as shown in the figure: And when the temperature exceeds our set threshold of 24 degrees Celsius, it will be marked with red dots and recorded, and an alarm will be issued.
In the absence of suitable alarm instruments such as LED lights or buzzers (in fact, their alarms are not easy to record in reports), we have chosen another method: sending text messages. This method is more complex to operate but more practical in today's life: receiving warnings at any time.
Expected Results:
We expect that finally we can create a system with raspberry-pie and python to real timely monitoring of temperature changes and issuing alerts (sound or text message (only current scenario)） when the temperature exceeds the set threshold. So as to provide simple improvement ideas for more environments, such as the cultivation of animals and plants or storage with temperature requirements