Cold-Chain Vehicle–Drone Cooperative Delivery System Logic

Cold-Chain Vehicle–Drone Cooperative Delivery System Logic

①Top Tier: Decision & Optimisation Layer (Cloud)

① Input Data

  • Customer orders (demand, coordinates, time windows)
  • Vehicle & drone parameters (capacity, speed, range, cost)
  • Cold-chain constraints (spoilage rate, temperature limits)

② Algorithmic Modules

  • K-means clustering → customer segments → regional depots
  • Ant Colony Optimisation (ACO) pheromone initialisation
  • Greedy VRP solver (truck TSP + drone VRP)

③ Output Plan

  • Truck route: depot → regional depots → depot
  • Drone routes: depot → customers → depot
  • Cost report: transport + spoilage + time KPIs
Dispatch plan & ETA
②Middle Tier: Regional Coordination Layer (Edge Server)

① Regional Depot (Micro Cold-Store)

  • Receive perishables unloaded from truck
  • Temperature-controlled buffer (0–4 °C)
  • Drone pad & battery-swap station

② Task Scheduler

  • Real-time truck arrival ETA feed
  • Dynamic drone → customer assignment
  • Conflict check: range, payload, battery, wind

③ Data Feedback

  • Drone status (battery, position, cargo temp.)
  • Customer POD time → update spoilage model
  • Exception events → trigger truck re-dispatch
Task release & loading list
③Bottom Tier: Execution & Sensing Layer (Field)

① Refrigerated Truck

  • GPS + temperature probe + on-board modem
  • Follows planned route and reports position

② Drone Fleet

  • Insulated pod with phase-change material
  • Max 80 kg payload, 100 km range, 60 km h⁻¹
  • IR temperature sensor → live spoilage estimate

③ Customer Terminal

  • Mobile app POD + temperature confirmation
  • Exception photos uploaded → liability fix
DKFile
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