Shower water temperature regulator design
ABSTRACT
Shower water heater is currently more widely used at family, however,
there is a mainly way to regulate shower which through manual adjustment
switch to control the temperature in the market . This adjustment is not a good
way to control the temperature , and sometimes regulating switch is far away
from the shower location, which is not convenience to control the temperature.
therefore, this adjustment method is not able to satisfy the people to pursue life
comfortable request.
This paper introduces a kind of new shower water temperature regulator,
which use the Single chip as the main control device and DS18B20 as the
temperature sensor. It mainly includes hardware circuit design and software
design. Hardware circuit mainly includes the main controller, temperature
control circuit and display circuit , the main controller uses the Single chip
STC89C54RD +, temperature sensor adopts DS18B20,display circuit uses
eight total cathode tube dynamic scanning LED digital display. Temperature
control circuit is consist of temperature sensor and the preset temperature
comparison circuit, and when the actual measured temperature greater than or
less than the preset temperature value, a signal to send commands to control the
mouth of cold water and hot water valve port, so that hot and cold water into the
container to a certain size, to ensure that the temperature of the container
changes a certain range. Software design mainly include main program,
temperature program and display program. This design can achieve precise
control the temperature of the water in which the integrated single chip make the
product miniaturization and intelligent, not only improves the function and
quality of products but also reduces the cost and simplify the design.
