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Smart Micro Type 31 Automotive RADAR UMRR is a series of Smart Micro Systems trafic radar systems.  UMRR stands for Universal Medium Range Radar.


  • Medium and Short Range Radar (MRR/SRR) for Blind Spot Detection (BSD)
  • Lane Change Assist (LCA)
  • Rear Cross Traffic Detection (RCTA) and Rear Collision Warning (RCW)

Discountinued Product Please see the new model Type 132 and Type 153 RADARs

UMRR-OA Type 31 Features

  • Operation at the 24GHz Band or 77/79GHz Band Smartmicro Proprietary Fully Integrated System-On-Chip SiGe Transceiver RFIC (180nm BICMOS)
  • Single TX, Dual RX
  • Highly Precise Monopulse Angle Measurement
  • Best-in-Class Antenna Technology
  • Patented FMSK Slow Speed Modulation
  • Single Core DSP
  • Dual CAN Bus Interface
  • Range accuracy Typ. < ±2.5% or < ±0.25m (bigger of)
  • Interface CAN V2.0b (passive)IV RS485 half-duplex
  • Minimum abs. Radial Speed 0.1 m/s
  • Speed accuracy Typ. < ±0.28 m/s
  • Detection range 20m (passenger car, boresight).
  • Angle interval -8 ...+8 (El.); -50 ...+50 (Az.)
  • Radial Speed Interval -20 ...+20 (m/s)
  • Size: 11.0 x 9.9 x 3.1 cm (W x H x D). Weight: 330g.


Smart Micro Automotive RADAR Multi Sensor Systems Processing Hardware

For the many possible multi sensor applications in automotive applications, but also in robotic applications or for traffic management sensor applications a network of Radar devices may be required. Typical cases are:


A) switch multiple sensors together and have them measure perfectly synchronized.

B) combine the field of view beyond that of a single sensor by using sensors side by side.

C) synchronously measure in different (opposite) directions in traffic management applications.


Smartmicro technology is prepared for ready to run operation in a radar network, either in a master-slave setup where multiple slave sensors are connected to one master sensor.


Alternatively a number of Radars configured as "slaves" may report to a "master" sensor data fusion and tracking controller.


For the purpose of such tasks Smartmicro has developed the high performance sensor data fusion and tracking controller BUMPER-080201. It features four CAN bus ports, an Ethernet interface option, relay contacts option and has many more possibilities.


The BUMPER-080201 sensor data fusion and tracking controller is a robust and versatile sensor data fusion and tracking controller for UMRR sensors.

With four CAN interfaces, 10/100 Mbit/s Ethernet interface (optional), and relay output signals interface (optional) it provides a high flexibility.





Model No.


Number of arbiterated UMRR Sensors per sensor fusion and tracking controller

1 to 10


Determined by sensor network, typ. 20 ... 200ms


UMRR Sensor arbiteration, syncronization, confuiguration 

Sensor Data Fusion

Co-ordinate transformation

Tracking of objects

Classification(application specific)

Other algorithms (application specific)


Quad Can Bus

Interface V2.0b(passive)

Ethernet ETHO-010100 (optional) 10/100MBits/s, Standard RJ45

Relay interface RAM-000000 (optional)

4 channels, 500mA max.per channel

NO/NC type can be selected upon order

Power Supply

7-32V DC

Power consumption (CAN only): < 1,5W

Power consumption (with Ethernet): <2,0W


173 x 78 x 57mm(W X H X D), 700g

Environmental Conditions

-40°C .. +85°C

International Protection Rating

IP65 (no options)

IP51 (with Relay option; IP65 possible) IP30 (with Ethernet option)



CAN Interfaces



D-SUB9 male











Please note that in the standard configuration the device has no 120Ohms resistors on board (CAN bus termination between CAN_L and CAN_H). The resistor is nevertheless required at either end of a CAN bus and is in most cases integrated in the cable delivered along with the sensor (if cable is manufactured by Smartmicro).





D-SUB9 female










Ethernet(optional) Standard RJ45 socket.

Please note that not all software projects support the Ethernet interface. Please contact us to verify if this interface will be available for a specific application.


Relay contacts (optional)

Connections are made customer / project specific using connector or cable stump.




sms Automotive Radar Type 31 General Performance Data

Type 31 RADARs have been discontinued Please consider Type 132 RADAR or Type 153 RADAR

Parameter Value Unit
Sensor Performance    
Max. Range on Pedestrian 20I m
Max. Range on Passenger Car 45I m
Minimum Range 1 m
Range Accuracy Typ. < ±2.5% or < ±0.25m (bigger of) %, m 
Radial Speed Interval -70 …+70V m/s
Minimum abs. Radial Speed 0.1  m/s
Speed accuracy Typ. < ±0.28 m/s
Angle Interval (total field of view) -8 …+8 (El.); -50 …+50 (Az.)II degree
Update time <= 50 ms
Ambient Temperature -40 ... +85 degree C
Shock 100 grms
Vibration 14 grms
IP 67  
Pressure / Transport altitude 0…10.000 m
Weight 295 g
Model No. 0A0601-1F0600  
DSP Board – Antenna Identification 0A0601-1F0600  
Housing Identification 030600  
Power Supply

7 ... 32III 




Frequency Band


FCC15.245, EN300440 compliant

Bandwidth < 100 MHz
Max. Transmit Power (EIRP) 20 dBm
Interfaces CAN V2.0b (passive)IV

 RS485 half-duplex
Connector 8 Pin plug Binder Series 712 CAN, Power, RS485
I Typical values; may vary to higher or lower values depending on clutter environment. All values given for bore sight. Please note that the Radar system – like any other sensor system – although being well optimized and providing excellent performance, will not achieve a 100% detection probability and will not achieve a false alarm rate equal to zero.
II Total field of view is angle interval where reflectors can be detected; 3dB field of view is narrower.
III measured at connector; min. voltage slew rate 500V/s or max. voltage rise time 15ms; supply source impedance 0.5Ohms.
IV Also available: Ethernet, Relay contacts, see interfaces. It is recommended to use an external surge protection for power, CAN, RS485 and other interface ports.
V Interval may be adapted depending on s/w configuration and/or application specific.