Automatic Room Temperature Control System

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Automatic room temperature control system.

Dedicated control over room temperature is not only a key issue in providing work conditions that ensure employee satisfaction and hence increased work output. The circuit present the design construction development and control of automatic switching electric fan and also automatic control of temperature of heater. 2 2 an automatic room temperature control with security system 23 2 3 an avr lm92 temperature sensor system 25 2 4 temperature control system using lm35 26. It uses lm35 temperature sensor to measure temperature.

Automatic room temperature control 1. The following are the advantages of automatic control system. Power supply unit the sensor unit and the control switching unit as shown in the system block diagram in fig. At room temperature the output of the sensor would be a stable value.

The automatic room heater control system comprises of three 3 main subsystems. The idea is based on the problem occurs in human s life now a days by improving the existing technology. For every 1 c of rise fall in temperature the output voltage of the sensor varies by 10mv. Dc motor as its main output blocks and the potentiometer and temperature sensor tmp36 as the input control.

Download high res image 136kb download. The user enters the reference temperature by keypad and then the microcontroller turn on and off the heater or cooler when the temperature is too hot or too cold. Pic 18f45k22 is the brain of this automatic temperature controller system. Precession accuracy and high efficiency are obtainable.

Contents problem statement introduction methodology circuit diagram components applications conclusion references 2. The project maintains the temperature of a room in 20 25 degree celsius. The diagram for a generalized automatic temperature control system is shown in figure 1 2. It is now a health and safety issue.

Human errors are avoided. Automatic room temperature controller. The microcontroller 8051 based automatic fan system is applied to upgrade the. System iterates forever unless it gets terminated by the user due to the behavior of the loop function.

Advantages of automatic room temperature control. Use of automatic temperature controller. The temperature sensor lm35 is very accurate whose output is directly proportional to its surrounding temperature. Other temperature control devices the final control devices are contactors blowers electric motor or pneumatically operated dampers and valves motor operated variacs time proportioning or phase fired scr s and saturable core reactors.