Battery Charging Service

Roadmap

• REST API
• Implement Scheduler
  • Charge most capacity first
  • Constraint, currently charging battery cannot be changed (but charging process can be paused)
  • Constraint: Availability of Energy
    • A minute per percent state of charge to duration
    • Amount of batteries that need to be ready per timeslot
  • Usage of Battery/Per Minute must be available
    • We always want a certain number on Batteries on Stock
      • if too low send out warning message (not important)
  • Battery Simulator
• Confidence Estimator
  • Electricity Prices

Questions

• Simulate Battery Charging
  • We implement battery charging simulation.
  • How long does a battery load?
  • Is the charging curve important? How does the charging curve look like? Can we make it linear?
• Charging station specifics
  • How many batteries should each station hold?
  • How many chargers do we have per station? Can we assume one?
• Drone demand prediction
  • How often does a drone come per hour?
  • Is the probability evenly distributed?
  • Is there an estimated variance too?
  • Are the demand predictions fixed size or floating?
• Who wants to write a paper?

Endpoints

POST /battery

This endpoint is used by the simulation to add a battery to the optimization process. All batteries should be added at startup.

Request:

{
    "battery_id": "string",
    "state_of_charge": float,
    "capacity_kwh": float,
    "max_power_watt": float
}

POST /charge-request

This endpoint is used by a drone to request a charging station. It returns a JSON response indicating whether the request was accepted or not. Use force for a drone to request an emergency battery.

Request:

{
    "drone_id": "string",
    "battery_id": "string",
    "state_of_charge": float,
    "capacity_kwh": float,
    "max_power_watt": float,
    "eta: timestamp,
    "force": boolean
}

Response:

{
    "success": true/false,
    "message": "string"
}

PUT /exchange

This endpoint is used to indicate that a battery exchange has occurred. It takes in the ID of the battery that is gone and the ID and battery current of the new battery that was received.

Request

{
    "old_battery_id": "string",
    "new_battery_id": "string"
}

Response

{
    "success": true,
    "message": "Exchange recorded successfully"
}

PUT /demand-estimation

This endpoint is used to send a prognosis of the estimated demand of charged batteries in a certain interval.

Request

{
    start: timestamp,
    demand: List[float],
    resolution_ms: int
}

PUT /price-profile

This endpoint is used to send a prognosis of the price profile of the electricity.

Request

{
    start: timestamp,
    price: List[float],
    resolution_ms: int
}

Drone Simulator

This is a simple simulation of drones flying towards a cursor using Pygame. The simulation includes a Drone class with 2D coordinates, velocity, and acceleration vectors, and methods for updating and drawing the drones on the screen.

Requirements

• Python 3.x
• Pygame
• Numpy

Usage

Start with:

python -m drone.main