Wireless Car Counting: Cost-Efficeint Occupancy Count
The Challenge: Visibility Without Complexity
Managing a high-volume parking facility requires knowing exactly how many spaces are available. Traditional induction loops are costly to install, prone to failure with high traffic and are tuned to either “stop and go” or “through” traffic speeds. If and when the traffic behavior changes, e.g. gates break or are manually opened for public events, etc., occupancy count is lost.
On the contrary, Nwave’s Car Counting solution delivers a best in class, low cost, real-time, scalable counting solution with minimal infrastructure.
Why Nwave Car Counting?
How It Works
Nwave sensorsare installed at every entry and exit point and communicate via a Long-Range Wide Area Network (LoRaWAN) to a central gateway, which pushes real-time data to digital signage and analytics dashboard.
- 1Detect: Sensors detect and count.
- 2
Transmit: Data is sent wirelessly to a Gateway.
- 3
Display: Occupancy wirellesly is pushed to Digital Message Signs.
- 4
Manage: Monitor trends and utilization analytics.
Wired Car Counter Systems vs. Wireless Nwave Car Counting Solution
Traditional car parking counting systems typically involve two types of systems – in-ground induction loops or various kinds of wired counting hardware solutions installed in the vehicles’ entrance and exit paths (these may be camera-based, radar/LIDAR-based, etc.)

Induction Loop Solution

Camera-Based Solution
Traditional car counting comes with trade-offs. Induction loops are simple but less accurate, requiring cutting wires into the pavement. Camera-based and other wired systems need mounting infrastructure, electricity and regular allignment and tuning to stay accurate — a major expense, especially outdoors.
Nwave takes a different approach. Wireless sensors are set at the entry and exit paths, with no drilling, wiring, power, or mounting hardware required. That means installation and maintenance at a fraction of the cost of wired systems — and the savings are greatest exactly where wired solutions struggle most: outdoor lots.
Why Wireless Car Counting Wins
The Wireless Infrastructure Advantage
Comparing project costs for Counting & Per-Space
Car Counting vs. Per-Space Sensors
Both use the same Nwave wireless sensor hardware. Pick the right mode for your facility — or combine them in a hybrid solution.
CAR COUNTING
LOWER COSTSensors at entry & exit lanes track total vehicle flow. Best for facilities with narrow, well-defined, one-way lanes and regular off-peak hours for automatic resets.
PER-SPACE SENSORS
HIGHER PRECISIONEach sensor monitors an individual parking space in real time. Enables per-space, per-level, and per-zone data with directional wayfinding guidance.
Error Drift
The biggest flaw in car counting technology is the accumulation of small errors that eventually lead to “ghost” occupancy. If a system is 98% accurate, it loses 2% of its reliability every day.
The Nwave Difference
- 1
High Baseline: Our 99%+ vehicle detection accuracy means the displayed facility occupancy count stays accurate longer.
- 2
Smart Recalibration: Our cloud dashboard allows for scheduled or manual count corrections during off-hours. We also offer automatic corrections, based on the historical data “drift”. Both options are available to you to ensure that your real-time count stays accurate.
- 3
Visual Verification: Easily integrate with existing LPR or CCTV to verify counts during peak periods.
Use the simulator above to compare Nwave’s 99% vehicle-detection accuracy target (1% error rate) with the typical market standard of 95% accuracy (5% error rate) and see how quickly error compounds.
Technical Specifications
| Detection Accuracy | 99%+ target vehicle detecion accuracy in car counting mode |
| Detection Speed | Instantaneous. Data uploaded every 30 secs. |
| Sensor Fusion | 4 different vehicle detection sensors |
| Interference Immunity | Resistant to EMI (Power lines, trains, EV chargers) |
| Radio Protocols | LoRaWAN |
| Range | 500ft – 1+ mile in urban/built environment |
| Local Config | Bluetooth (BLE) 5.1 |
| Security Encryption | AES-256 (VPN) & NSA-approved Speck cipher |
| Build | Power | ||
|---|---|---|---|
| Material | Automotive-strength Polycarbonate | Battery Life |
|
| IP Rating | IP69K | Battery Type | 18,500 mAh Li-SOCl2 |
| Load Limit | > 5,000 kg per wheel | ||
| Temp Range | -40°C to +85°C |

