The Geomagnetic Vehicle Detection System is a widely adopted solution in urban traffic vehicle management due to its ease of installation and exceptional accuracy, even in challenging environmental conditions. Its core principle revolves around a wireless geomagnetic vehicle detector, known for its precision in capturing various traffic parameters with an accuracy rate exceeding 99%. These parameters include vehicle speed, traffic flow, headway time, and occupancy time. The system comprises a geomagnetic detector, a wireless receiver/repeater, and a data processing center.
A perfect substitute for inductive loop detectors
It is fully capable of emulating the output mode of inductive loop detectors, offering a binary "presence" and "no vehicle" output. The occupancy time can be customized to match the length and width of the installed inductive loop and tailored to specific output requirements as needed.
99% traffic data accuracy
It boasts the same high level of accuracy as a loop detector but surpasses it with its remarkably simpler wireless communication and installation process. Flexible deployment
Real-time data collection
It adopts a collision avoidance mechanism for all detectors to report traffic data in real-time. If the channel is occupied, it will resend after a random multiple of 20 milliseconds to ensure that the traffic data is collected in real-time at the center.
360° wireless signal angle
The detector generates signals with 360° wireless angle. Compared with directional antenna, our solution saves the quantity of needed receivers. As a result, the detector can be freely rotated within the installation hole, making installation and removal straightforward and reducing construction and maintenance costs.
Self-adaptive position learning
After installation, removal should not affect the normal operation of the geomagnetic system, and it can be reused after road maintenance.
Expected 10 years battery life
The battery life can extend to 10 years for regular usage. Considering extreme conditions, with daily single-lane vehicle traffic exceeding 10,000 vehicles in a megacity, the battery life can still last for at least 5 years.
ClairGeo-SDET
ClairGeo-SRPT
ClairGeo-SRCV
ClairGeo-SPDC
ClairGeo-SMGT
Detector
Repeater
Receiver
Data Processing Center
Management Platform
Streamlined Factory Configuration
Integrated Power Control Module
360° Wireless Signal Coverage
Self-Adaptive Position Learning
Be needed to ensure reliable communication while the distance between the detector and receiver exceeds 80meters
Act as the central hub where wireless data converges, and it subseguently transmits
this data to the data processing center via an RS422 interface.
LCD screen displays geo magnetic operational status:
On-site access to parameters
Quickly pinpoint maintenance device locations
Subarea Management Intersection or Road Segment Management
Detector Installation Position, Lane Mapping, and Parameter Configuration
Intersection Host Device synchronization
Select between ClairGeo-M and ClairGeo-S
S Series
M Series
3 axis detection
Single axis detection: suitable for the cases while vehicle’s passage is overhead the detectors.
X,Y,Z 3-axis detection: suitable for cases the passage is not directly above. Less interference between multiple lanes.
Antenna range
360˚ Omni-directional will ease the installation, however consumes more power and be with less anti-interference performance
±60˚ Directional antenna will have better anti-interference performance.
Repeater needed
While the distance between receiver and detectors are within 80m, no repeater will be needed.
Since repeaters are with directional antenna, repeater will be mandatory for each of the detectors.
Overall cost
Lower
Higher
Suitable cases
Small size installation with not too much wireless interference
Technical Documents
