Maher-radio
REMOTE-IRRIGATION-RADIO

IRRIGATION REMOTE CONTROL, MAHER RADIO

The remote control and automation systems for irrigation via radio manufactured by MAHER ELECTRÓNICA enable wireless controller communication for controlling farm irrigation, golf course irrigation, automatic tank filling, irrigation community management, meter reading, etc.

Wirelessly you can:

  • Open or close valves, start or stop pumps, alarms, etc.
  • Consult the status of digital inputs and sensor readings

 

I WANT INFORMATION

How does MAHER RADIO – remote irrigation system control work?

  • Transmit digital signals from a controller to a receiver and vice versa To do this, a transmission signal with a frequency of 868 MHz in Europe or 915 MHz in North America and Central America is used, which are frequencies of free use in those regions, and maximum power of 500 mW.
  • The digital signals are coded in such a way that they can only be interpreted by the controllers to which they were sent, using 4 bytes to identify the recipient. A 16-bit CRC code is also used to detect errors in received frames, so that the change can be detected by error of the 1-bit value in a 1024-bit sequence.
  • The receiver or remote unit executes the order sent by the transmitter: opening or closing a valve, starting or stopping pumps, alarms, etc. The remote units can have 8 or 16 outputs, depending on the model.
  • To send an order, the controller sends the signal into the air. The signal is received by all the remote units that are within range. Each remote unit checks whether it is the recipient of the order. To do this, it checks whether the identity of the recipient matches its ID. If it does, then the remote unit analyzes the received command and executes it. It then responds to the controller by confirming receipt and sending the data requested by the control unit. The control unit thus receives the signal from the remote unit and checks that it corresponds to the expected response. If the controller receives no response or an incorrect response after sending a command, it resends the signal 2 more times.
  • Range of up to 3.5 km from the transmitting unit to the receiving unit, as long as there is visibility between both devices

Radio Communications System

  • The remote control system for irrigation via radio has one Base Station and up to eight Remote Units with 8/16 outputs, 10 Digital Inputs and six analog Inputs. The Base Station is connected to the controller and sends, through radiofrequency signals, the orders coming from the irrigation controller to open and close the valves throughout the farm.
  • The controller (Ciclón / Ferti 8,000) is connected to the radio module by means of a maximum 15 m serial cable, which is the so-called “Base Station.” The Base Station sends radio signals with the valve opening/closing order to each Remote Unit, queries the status of the digital inputs and reads the sensors. The Remote Units receive the radio signals and close/open the corresponding outputs.

Remote Units

In this controller for remotely controlling irrigation systems, each Remote Unit includes the following elements:

  • Polyester cabinet
  • Solar cell 12VDC/10W
  • Regulator, to stabilize the voltage coming from the solar cell and control the battery charge.
  • 12 VDC/12 Ah battery, to provide the Remote Unit with autonomy if there is no solar energy.
  • Keyboard and display.
  • Base Plate, which stores the configuration of the Remote Unit and manages the data received through the Radio Module.
  • Output plate with 8/16 Latch type outputs available.
  • Radio module that receives and transmits data wirelessly.
  • Antenna and hose.

Related products