Robot platform

Unmanned ground vehicles

One wheeled platform for delivery, patrol and mapping

Wheeled robots are the most practical way to learn the full autonomy stack: perception, mapping, localisation, planning and control. A single vehicle can switch between tasks by changing its route, payload and software.

Our supporting parties include logistics and autonomous driving companies, so teams can work on problems that come from real operations.

Type
Robot platform
Applications
Campus delivery, patrol, mapping, logistics
Key skills
ROS 2, SLAM, LiDAR and camera fusion, motion planning, vehicle control
Who can lead
Tier 1 and Tier 2 members, by proposal

The autonomy stack

Every autonomous vehicle runs the same chain of modules, and each maps to a technical group.

  1. SensingLiDAR, cameras, GNSS, IMU
  2. Localisation and mappingWhere am I on the map?
  3. PerceptionWhat is around me?
  4. PlanningWhich path is safe and efficient?
  5. ControlSteering, throttle and braking

Campus delivery

Moving parcels, food and documents between buildings on a planned route.

Patrol and security

Night-time patrols that detect unusual events and report them.

Inspection and mapping

Building and updating 3D maps of campus roads, car parks and facilities.

Logistics with industry

Problems from logistics partners, such as autonomous vans for the last mile.

Engineering foundations

Two models used in almost every vehicle project.

Kinematic bicycle model

\[\begin{aligned} \dot{x} &= v\cos\psi, \quad \dot{y} = v\sin\psi \\ \dot{\psi} &= \frac{v}{L}\tan\delta \end{aligned}\]

Vehicle position and heading from speed v and steering angle δ, with wheelbase L.

Pure pursuit steering

\[\delta = \arctan\!\left(\frac{2L\sin\alpha}{l_d}\right)\]

Steers towards a point on the path a distance l_d ahead, at angle α from the heading.

Photos

An autonomous logistics van on campus
An autonomous logistics van on campus.
Obstacle-avoidance test with a small ground robot
Obstacle-avoidance test with a small ground robot.
Autonomous test cars on the PolyU campus
Autonomous test cars on the PolyU campus.

Other projects