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Robotics simulation · Case study

Autonomous Robot Environment

A local, simulation-first MuJoCo environment for a two-wheeled robot navigating a furnished office with lidar, camera sensing, dynamic cat obstacles, a safety layer, and a Gymnasium interface for controllers and learning agents.

Two-wheeled simulated robot navigating a furnished office beside a catRobotics simulation

Project overview

Autonomous Robot Environment

A local, simulation-first MuJoCo environment for a two-wheeled robot navigating a furnished office with lidar, camera sensing, dynamic cat obstacles, a safety layer, and a Gymnasium interface for controllers and learning agents.

MuJoCosimulation-first environment with a Gymnasium interface
PythonMuJoCoGymnasiumNumPyNumbaPygamepytestLidarDifferential driveRobot safety
Context
Open-source robotics simulation
Role
Developer and system designer
Robot
Differential-drive base with lidar, camera, and wheel encoders
Environment
Furnished office with doorways and roaming or sitting cats
Status
Local simulator; no hosted live demo

The problem

Navigation research needs repeatable environments and explicit safety behavior

Autonomous navigation experiments are difficult to compare when sensing, obstacles, control, and safety behavior are scattered across ad-hoc scripts. A repeatable simulator makes the robot, scene, observations, and intervention rules inspectable before a physical deployment is considered.

The system

A simulation loop with safety at the control boundary

The environment exposes the same robot and safety layer to manual control, a baseline driver, and Gymnasium-compatible controllers or learning agents. Automatic commands pass through the safety layer before reaching the simulated robot.

01Build the sceneMuJoCo office, furniture, doorways, and cats
02Sense the worldLidar, front camera, and wheel encoders
03Choose an actionManual control, baseline driver, or agent
04Apply safetyIntervene before unsafe commands reach the robot
05Measure behaviorGoal progress, collisions, and recovery signals

What I built

A practical foundation for simulation-first autonomy

01

Built a differential-drive robot model with driven wheels, ball casters, lidar, camera sensing, and wheel encoders.

02

Created a furnished office scene with corridors, rooms, doorways, furniture, and dynamic cat obstacles.

03

Exposed the environment through a Gymnasium interface so controllers and learning agents can use the same simulator.

04

Kept safety intervention at the command boundary instead of treating it as an after-the-fact metric.

05

Included manual and baseline-driver paths for inspecting navigation behavior before training or hardware transfer.

06

Documented local setup, simulator scope, and the boundary between simulation evidence and physical-robot validation.

Quality and evaluation

Simulation evidence is useful only when its boundary is clear

The repository is a local simulator for repeatable development and research experiments. Its current evidence does not establish performance on a physical robot or a hosted live demo.

Evaluation can compare navigation behavior, safety interventions, and recovery across controlled scenes and controllers while preserving the same environment interface.

Technology

PythonMuJoCoGymnasiumNumPyNumbaPygamepytestLidarDifferential driveRobot safety

Evidence

Inspect the simulator and run it locally

SourceAutonomous Robot Environment on GitHub