Automated Parking System Product

Overview

An automated parking system is a computer-controlled robotic structure that stores and retrieves vehicles without human driving. The driver pulls into an entry booth, leaves the car in an elevator-like platform, and walks away. The system automatically parks the vehicle in a high-density rack, compressed vertically and horizontally to triple the storage density of traditional surface parking. When the driver returns, a few button taps retrieve the car, which emerges at the booth 2–5 minutes later.

The core subsystems are the Vertical Lift Module, which is a linear actuator raising and lowering vehicles between levels; the Shuttle Mechanism, which is an autonomous horizontal mover (like a forklift on rails) that pushes the vehicle into a slot; and the Storage Racking, which is the steel grid holding the vehicles. A Control System PLC orchestrates all motion, preventing collisions and ensuring safe operation.

The economics are compelling: a typical 50-space surface lot occupies 2000 m² of expensive urban real estate. An automated system delivers 150–250 spaces in the same footprint, paying for itself in urban areas within 5–7 years through land savings alone.

How it works

The driver pulls into the entry booth. A video camera and ticket reader confirm the vehicle is parkable (not oversized). The Control System PLC computes the optimal storage slot, considering which levels and positions are currently empty and minimizing retrieval time for other vehicles. It signals the Transfer Cabin—a bridge platform—to be ready.

The driver slowly drives onto the cabin platform. Mechanical guides on the cabin lock the vehicle's wheels, and sensors confirm the car is centered and secured. The cabin is itself a small elevator: it rises via the Vertical Lift Module, which is powered by a Lift Motor (3–15 kW induction motor) driving a Ball Screw (ground ball screw converting rotation to linear motion). As the cabin rises, an Position Encoder on the motor shaft reports position to the PLC, which stops the cabin at the exact level where the Shuttle Mechanism is waiting.

The Shuttle Mechanism is a low-profile motorized carriage running on Guide Rail, a ground steel rail with precision bearings. The shuttle has a Vehicle Pallet Fork—two telescoping arms that engage the vehicle's bumper or a fixed anchor point. Once the cabin opens, the shuttle autonomously moves forward, engages the vehicle, and retracts backward, pulling the car off the cabin and onto the rail. The shuttle then travels horizontally at 1–2 m/s, guided by its Shuttle Sensor (an optical encoder), until it reaches an empty slot in the Storage Racking.

The racking is a three-dimensional grid: the Racking Column are vertical support members, and the Racking Beam span between them horizontally at multiple levels, creating "cells" that hold one vehicle each. The Pallet Slot are individual platforms within each cell. The shuttle pushes the vehicle into the slot until it rests on the pallet, then retracts. The vehicle is now parked—fully supported and stable—and the shuttle returns to the cabin, ready for the next vehicle.

Retrieval is the reverse. The driver dials in their parking code or uses an app. The Control System PLC locates the vehicle, commands the shuttle to that slot, and pulls the vehicle back onto the cabin. The cabin descends, opens at the entry level, and the driver drives out. The entire cycle—park or retrieve—is 2–5 minutes.

Safety is paramount. The Safety Barriers and Sensors are light curtains (Safety Light Curtain) at the entry that immediately stop motion if a person enters the automation zone. The Limit Switch devices confirm that shuttles, lifts, and cabins are in their correct positions before motion begins. The Emergency Stop Module is a hardwired safety relay system: if any sensor fails or power is lost, all motion halts immediately—no software glitch can cause a runaway cabin.

The Motion Controller is a real-time processor that manages synchronized motion of the lift and shuttle. Both operate in parallel to minimize cycle time: while one shuttle retrieves a vehicle from deep storage, another shuttle can be placing a newly arrived vehicle. The PLC must ensure shuttles do not collide on the same rail and the lift does not operate while a shuttle is under it.

Power is the system's largest operating cost. Continuous operation averages 10–20 kW, but peak power during a busy retrieval cycle (multiple shuttles and lift running) can spike to 50–150 kW. Most installations upgrade the site's electrical service to support this. Some add a small automated-parking-system-energy-storage (battery or flywheel) to shave peak demand and reduce demand charges.

Maintenance is structured: monthly inspections check rail alignment, bearing wear, and cable tension. Annual overhauls replace worn shuttle wheels, relubricate the lift screw, and inspect the racking welds. Lifespan is 15–20 years; the Shuttle Mechanism and Vertical Lift Module drive components are the first to fatigue and may require rebuilding at year 10–12.