Deuta Radar Sensors are non-contacting in operation and use the Doppler microwave principle to calculate measurement values, their integrated Digital Signal Processor (DSP) performs challenging evaluation algorithms in the device itself.
These systems are used in the areas of automation and R&D as well as – in series production – railway vehicles. The use of DEUTA sensors means maximum flexibility and safety for vehicle control.
Single-channel Doppler Radar
The patented algorithm for assessing instantaneous velocity was specially optimised for applications such as traction control and measuring at high rates of acceleration. These are the conditions encountered, for example, in Metro applications (Mass transit).
The dual-channel Doppler Radar uses special dual-beam algorithms to analyse the Doppler signals. These are optimised for high accuracy and a velocity measuring range of up to 600 km/h. The information is transmitted in data packages via a serial RS485 interface. The protocol is adapted for particular customer requirements and contains information on the evaluation status of the Doppler signals. Parameters derived from the speed, such as distance and acceleration are provided there.
Robust design for long operating lives
With its integrated protective hood,the housing increases operating life when the unit is subjected to the impact of stones, as well as increasing availability in winter conditions. This is the recommended solution for high speed trains with ETCS-/ERTMS systems.
If it is not possible to mount the unit into the cladding of the underbody, an optional protective cover (tested up to 400 km/h) can be mounted.
DRS 05/1S1 a Radar Sensor
Working principle: Doppler radar, Dual antenna system
Speed range: 0.2 to max. 600 km/h
Statistical errors (1s) <0.4 km/h (v <100 km/h) <0.4 % (v >100 km/h)
Error due to variation of the underground: <1 % typical 3 % max.
Dynamic error øV = 0.65 km/h at a = 1 m/s1
Path measurement reproducibility: (1s) <0.1% from 1000 m distance
Power supply: 24 VDC < UE <110 VDC
Power consumption: Max. 10 W
Standard interface: RS 485 2-wire or RS 232
Forward/Backwards recognition: Yes (info output via serial interface)
Design antenna: Intermediate transmission frequency 24.125 GHz, transmission power 5 mW per antenna PLL-stabilised transceiver in planar technology frequency within the K-band freely programmable DRS 05/1S1a
OEM Technology Solutions | Leading edge, high technology products & services
OEM operates globally to provide leading edge, high technology products and services to the rail, transportation and industrial markets. Using a combination of their own "OEM branded" proprietary hardware ...