Charging: Unterschied zwischen den Versionen

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charging station circuit:
 
charging station circuit:
  
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  Power supply => Charger 24V (+)----- Charging station charger pin(+)
 
  Power supply => Charger 24V (+)----- Charging station charger pin(+)
                GND        (-)----- Charging station charger pin(-)
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                GND        (-)----- Charging station charger pin(-)
                Charger 24V (+)----- DC-DC converter 5V  => Perimeter sender Arduino Nano   
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                Charger 24V (+)----- DC-DC converter 5V  => Perimeter sender Arduino Nano   
                Charger 24V (+)----- DC-DC converter 12V => Perimeter sender MC motor driver
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                Charger 24V (+)----- DC-DC converter 12V => Perimeter sender MC motor driver
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</blockquote>
  
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robot charging circuit:
 
robot charging circuit:
  
 
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<blockquote style="background-color: lightgrey; border: solid thin grey;">
 
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<pre>
 
  Charging station (+)---+------+-- relais ---- current sensor ----- battery (+)
 
  Charging station (+)---+------+-- relais ---- current sensor ----- battery (+)
 
                               |
 
                               |
 
                               ---- voltage sensing
 
                               ---- voltage sensing
 
  Charging station (-)-- +------------------------------------------ battery (-)
 
  Charging station (-)-- +------------------------------------------ battery (-)
 
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=Charge plotting=
 
=Charge plotting=

Version vom 14. September 2014, 13:09 Uhr

Basic principle

About an induction loop, the robot finds the charging station where he can be charged again. In this case, as long as the induction loop traversed (clockwise) to the charging contacts of the robot detect a voltage (charging voltage). There, the robot stops.

Charger

The charger is in the cradle (or is connected to). The charger should accomplish the following things (in this case lithium-ion - Battery Lead is similar, but less critical): Load battery pack via the charging pins of the robot -Maximum Cutoff voltage / charge voltage compliance (charging voltage limit) -Maximalen Charging current compliance (charging current limit) If you are using an existing charging station, these things were implemented with high probability already there.

Robot

In the robot itself, the battery voltage is monitored (see diagram below). So it can be determined when the robot must go to the charging station. The robot and the voltage and the current during charging is controlled. So it can be determined whether the robot has reached the charger and when the battery is fully charged again. Ideally, the charging station also eat the loop transmitter:

charging station circuit:

 Power supply => Charger 24V (+)----- Charging station charger pin(+)
                 GND         (-)----- Charging station charger pin(-)
                 Charger 24V (+)----- DC-DC converter 5V  => Perimeter sender Arduino Nano  
                 Charger 24V (+)----- DC-DC converter 12V => Perimeter sender MC motor driver


robot charging circuit:

 Charging station (+)---+------+-- relais ---- current sensor ----- battery (+)
                               |
                               ---- voltage sensing
 Charging station (-)-- +------------------------------------------ battery (-)

Charge plotting

Via pfodApp (Android) you can get a plot of the charging process.

Charging station ideas

Videos

  1. Driving into charging station
  2. Drive in and out
  3. Tracking and docking


Further links