A HYBRID WIRED/WIRELESS NETWORKING
INFRASTRUCTURE FOR GREENHOUSE MANAGEMENT
Introduction:
In this paper, the problems rela...
between the master and slave nodes are using CAN protocol. And communication between the
master node and monitoring sectio...
Block Diagram:
Greenhouse Environment:
PIC16F877A

CAN Controller

Master Node

CAN Transceiver
CANH

CAN
Bus

CANL

CAN Transceiver

CAN Transceiver

CAN Contro...
Monitoring Section:
Power
Supply

Max 232

Hardware Requirements:


PIC16F877A Microcontroller



CAN controller



CAN...
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A hybrid wiredwireless networking infrastructure for greenhouse management

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ieee 2012 projects for m tech btech ece eee embedded systems@ srcembedded solutions- hyderabad.
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A hybrid wiredwireless networking infrastructure for greenhouse management

  1. 1. A HYBRID WIRED/WIRELESS NETWORKING INFRASTRUCTURE FOR GREENHOUSE MANAGEMENT Introduction: In this paper, the problems related to the management of a farm made up of several greenhouses are discussed. The management of this kind of farms requires data acquisition in each greenhouse and their transfer to a control unit which is usually located in a control room, separated from the production area. At present, the data transfer between the greenhouses and the control system is mainly provided by a suitable wired communication system, such as a fieldbus. In such contexts, even though the replacement of the wired system with a fully wireless one can appear very attractive, a fully wireless system can introduce some disadvantages. A solution based on a hybrid wired/wireless network, where Controller Area Network and ZigBee protocols are used, is presented along with all the related problems that this integration involves. A suitable multiprotocol bridge has been implemented. Existing System: In existing method, the data transfer between the greenhouses and the control system is mainly provided by a suitable wired communication system, even though the replacement of the wired system with a fully wireless one can appear very attractive, a fully wireless system can introduce some disadvantages. Hence we propose this system. Proposed System: The system to be controlled is made up of several greenhouses distributed in a field. Each greenhouse is used for the production of several kinds of plants, which can vary according to the season and to the requests from the market. Each greenhouse is equipped with sensor which performs all the activities requested for the correct growth of plants. Sensors are mainly used for the measurement of temperature and humidity, which represent two key parameters inside the greenhouse. In this project consists of two slave node and one master node, the communication
  2. 2. between the master and slave nodes are using CAN protocol. And communication between the master node and monitoring section is zigbee wireless technology. The sensor values are sensed by slave nodes using corresponding sensor, slave nodes are sent sensor information to master node using two wired communication CAN protocol. The master controller sends sensor value to monitoring section using zigbee wireless technology. Using .NET application the sensor data’s are updated with PC. If any abnormality occur means master send control instruction to slave node the control environment condition by switch on the DC motor or exhaust fan to maintain green house environment.
  3. 3. Block Diagram: Greenhouse Environment:
  4. 4. PIC16F877A CAN Controller Master Node CAN Transceiver CANH CAN Bus CANL CAN Transceiver CAN Transceiver CAN Controller CAN Controller Slave No.1 Slave No.2 PIC16F877A PIC16F877A PIC16F877A PIC16F877A Temperature Sensor Relay Relay DC Motor Exhaust Fan Humidity Sensor
  5. 5. Monitoring Section: Power Supply Max 232 Hardware Requirements:  PIC16F877A Microcontroller  CAN controller  CAN Transceiver  Zigbee  Temperature sensor  Humidity Sensor.  DC motor Software Requirements:  Embedded C.  MPLAB or CCS compiler. Advantages:  Highly reliable.  Fast communication  Noise free communication PC

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