04-10-2016, 12:05 PM
Design of the Measurement Node of the Grain Quantity Monitoring System Based on the CAN-bus
1457630839-1590910014.ppt (Size: 998 KB / Downloads: 5)
BACKGROUND
In The Existing system, Normally, We will use man power to monitor the grain quantity in the barn. It will take more time to calculate the grain level in the barns. So we require man power when ever we want to know the grain level of the barn.
In The Present system, We will use CAN Protocol and Pressure sensors to measure the exact grain level in the barn.
Digital air pressure sensor:
A pressure sensor measures pressure, typically of gases or liquids. Pressure is an expression of the force required to stop a fluid from expanding, and is usually stated in terms of force per unit area. A pressure sensor usually acts as a transducer; it generates a signal as a function of the pressure imposed. For the purposes of this article, such a signal is electrical.
Power Supply for PIC Microcontroller
The power supply section is the important one. It should deliver constant output regulated power supply for successful working of the project. A 0-12V/1 mA transformer is used for this purpose. The primary of this transformer is connected in to main supply through on/off switch& fuse for protecting from overload and short circuit protection. The secondary is connected to the diodes to convert 12V AC to 12V DC voltage. And filtered by the capacitors, which is further regulated to +5v, by using IC 7805