CD9054 Classification loop detector
Traffic Data Acquisition (Interurban)
The CD9054 loop detector is a 4-channel loop detector especially designed for traffic data acquisition according to TLS. It is certified by the German Federal Highway Reserarch Institute.
Vehicle detection, classification, and speed measurement in traffic control and data acquisition applications.
The CD9054 is a classifying loop detector, operating with two induction loops per lane, in accordance with TLS specifications. It is available as 2, (5+1), or (8+1) class version. TLS accuracy requires TLS loops. Activation of directional logic allows the detection of wrong way drivers and reporting. Vehicle types are determined by stored passing curves for either TLS loop type.
Features:
- BASt certified for both TLS loop types (certification available on request)
- Traffic data acquisition in accordance with German TLS
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Functions:
- Vehicle classification 2 / (5+1) / (8+1) classes
- Speed detection - Data interface (RS485) and service interface (parameterization)
- Feeder cables up to approx. 300 m for TLS loops
- Reliable data acquisition independent from environmental influences (weather conditions, day / night time)
- Automatic temperature influence compensation, permanent loop and ferrite control
- Wide basic frequency tuning range
- Non-volatile EEPROM storage of all operational parameters, easy maintenance through slot-based parameter adjustment(requires backplane EEPROM)
- Euro-card plug-in for 19” module carrier with narrow, space saving design (width: 20 or 25 mm)
- Low power consumption (< 0,6 W)
| Single vehicle data: |
Loop type 1 |
Loop type 2 |
vehicle class, speed (up to 300 km/h), length, distance, time of occupancy, time gap, driving direction |
| (8+1) classes acc. to TLS: |
— |
50 m feed cable |
other vehicles / motorbike / car / van / car with trailer / truck / truck with trailer / articulated truck / bus |
| (5+1) classes acc. to TLS: |
300 m feed cable |
300 m feed cable |
other vehicles / car group / car with trailer /truck / truck combination / bus |
| 2 classes acc. to TLS: |
300 m feed cable |
300 m feed cable |
car-similar / truck-similar |
Only single-vehicle data is transferred on the RS485 bus, e.g. to a TLS-FG1 IOC, taking over further data aggregation in accordance with TLS specifications. The detector auto-adjusts to the attached loop/feed-cable combination. Temperature variations have no influence on data acquisition. The measuring systems are permanently checked for short cuts or open loops, once a definite malfunction is detected, systems are put into failure status. If only one loop of a TLS double loop system is disturbed, the remaining loop supplies further data on time of occupancy, time gap, and a car-similar / truck-similar classification. Short measuring intervals and a new speed measurement procedure provide for the high accuracy and detection speed.