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4.2.1.5
Power System
The machine is battery-operated and after each route it returns to the charging station, which is installed
at a convenient point in the barn. The charging station also functions as the starting point of each route.
The power system stores and distributes the electrical power for the driving mechanism and the ADS 3840
PCB. The power supply is a single rechargeable 12V battery. Charging takes place at the charging station.
The power system has the following primary parts:
•
Battery.
•
Charging strips.
•
On/Off switch.
•
ADS 3840 PCB.
4.2.1.6
Control System
The control system has the following parts:
•
ADS 3840 PCB, to control the operation of the machine.
•
Encoders on the drive motors to measure the driven distance.
•
Ultrasonic sensor to measure the distance to wall or fence.
•
Gyroscope to measure angle differences to keep the right direction.
The water sensor detects when the water tank is full. The temperature sensor measures the temperature
in the barn for frost protection.
Encoders
Each drive motor has an encoder that counts the rotation of the motor shaft. This information is used to
calculate the position of the vehicle. The encoders send outputs to the ADS 3840 PCB.
Ultrasonic Sensor
The ultrasonic sensor makes sure the machine follows the wall or fence at a pre-determined distance.
A foam ring is adhered on the sensor to minimize reflections and to focus the reflected beam.
The sensor gets inputs from and sends outputs to the ADS 3840 PCB.
Gyroscope
The gyroscope measures the turning angle. This information is used to find the correct direction. The
gyroscope is essential for driving a route when there is no wall that can be followed.
The gyroscope is combined with the ADS 3840 PCB. The gyroscope is not a spare part.
Water Sensor
The water sensor is installed next to the battery on the water tank and detects when the tank is
completely filled.
in n o vato rs in ag ric u ltu re
Содержание Lely Discovery 90 SW
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