TDC3 TRAFFIC DETECTORS
Non-Intrusive Traffic Detectors for Single Lane Traffic Data Acquisition
The TDC3 Series are advanced traffic detectors using Doppler Radar, Ultrasound and Passive Infrared technology. Comprehensive traffic data including individual vehicle class, speed, length, occupancy time and time gap are provided via RS485.
TYPICAL APPLICATIONS:
TDC3 Series detectors are specifically designed for a variety of Traffic Data Collection and traffic control applications where inductive loops have been used in the past:
- Vehicle classification
- Individual vehicle speed
- Vehicle counting (volume)
- True presence, queue and wrong-way driver detection
- Occupancy and headway / time gap measurement
WORKING PRINCIPLE:
TDC3 traffic detectors measure the speed of each vehicle using the Doppler shift of the reflected microwave frequency. The ultrasonic sensor system scans the height profile of the passing vehicle and the PIR zones obtain the vehicle position (except TDC3-2) within the observed lane.
MOUNTING:
Recommended mounting points are gantries or other overhead structures above the lane centre. Clearly superior performance and reliability are a result of:
- Three independent detection technologies
- Full temperature compensation across entire temperature range
- Redundant system functionality
MODEL OVERVIEW:
- RD_TDC3-2 (2 Classes)
- RD_TDC3-3 (2+1 Classes)
- RD_TDC3-5 (5+1 Classes)
- RD_TDC3-8 (8+1 Classes)
ACCESSORIES:
Interface module USB-IF485 & Software:
For the communication between detectors and a PC during commissioning and maintenance an interface module in combination with the dedicated software is necessary. The interface module and software has to be ordered separately.
Mounting Accessories:
Mounting hardware and cable connectors are not part of the detector delivery unless ordered separately. Information about the available accessories to accommodate various mounting and operation scenarios are made available separately.
Field of view
Auto-
Calibration
Multi Technology
Detection
Remote
Configuration
Wide Operating
Temperature Range
- Multi technology detection: Three independent physical detection principles
- Standardized vehicle classification: German TLS for 2, 5+1 and 8+1 classes
- Auto calibration: Via according installation software within the recommended height above the lane
- Detection of lane-changing vehicles and vehicles travelling between adjacent lanes (except TDC3-2)
- Detection of standing vehicles
- Detection of wrong-way drivers
- Wide operating temperature range (–40 to +70°C): Optimum performance in all weather and climate conditions
- Remote configuration and setup: With according installation program
Technical Details
Supply Voltage | 10.5 V DC to 30 V DC |
Power Consumption | Max 110 mA |
Output (Data Transfer) | RS 485 (other options on request) |
Turn-on Time | Typ. 20 s from power on |
Dimensions | See drawing below |
Case Material | Polycarbonate, dark grey |
Mounting Points | M8, stainless steel V4A |
Weight | App. 1700 g without bracket |
Doppler Radar | K-Band 24.05 to 24.25 GHz |
Ultrasonic Frequency | 40 kHz |
Ultrasonic Pulse Rate | 10 to 30 pulses per second |
PIR Sensors | 2 channel PIR (TDC3-2) |
PIR Spectral Response | 6.5 to 14 μm |
Counting accuracy | Typ. ± 3% |
Speed accuracy | Typ. ± 3% (> 100 km/h) |
Classification accuracy | Vehicle classes according TLS |
Operating Temperature | -40°C to +70°C (-40 to +158ºF ) |
Humidity | 95 % RH max. |
Sealing | IP 64 splash proof |