Project Documentation | UMRR-0C Type 42 User Manual Project Number: ... SMS Project Number: Project Title: UMRR-0C Type 42 User Manual Keyword(s): UMRR-0C Type 42 radar sensor Date: November 22, 2017 Document: UMRR-0C Type 42 User Manual USA-Canada_100MHz Version: 2 CONFIDENTIAL AND PROPRIETARY The Information contained in this document shall remain the sole exclusive property of s.m.s, smart microwave sensors GmbH and shall not be disclosed by the recipient to third parties without prior consent of s.m.
1 Contents 1 2 3 4 5 6 7 8 9 Contents .................................................................................................................... 2 Abbreviations ............................................................................................................. 3 Introduction ............................................................................................................... 4 General description ...............................................................................
2 Abbreviations ADC Analog-to-digital converter CAN Controller area network DAC Digital-to-analog converter DSP Digital signal processing; digital signal processor EEPROM Electrically erasable programmable read-only memory FMCW Frequency modulated continuous wave MMIC Monolithic microwave integrated circuit RAM Random access memory RS485 Physical communication layer standard EIA RS-485 SPI Serial peripheral interface UMRR Universal medium-range radar CONFIDENTIAL AND PROPRIETARY The Info
3 Introduction This document is a short documentation of the general purpose universal medium range radar (UMRR) UMRR-0C Type 42 radar sensor with type 42 antenna. CONFIDENTIAL AND PROPRIETARY The Information contained in this document shall remain the sole exclusive property of s.m.s, smart microwave sensors GmbH and shall not be disclosed by the recipient to third parties without prior consent of s.m.s, smart microwave sensors GmbH in writing. UMRR-0C Type 42 User Manual USA-Canada_100MHz.
4 General description 4.1 Sensor description The main task of the UMRR is the detection of any reflectors in the field of view, to measure the distance, the relative speed and the angle to the shortest reflector (and to other reflectors), to detect motion and to track (filter) the results over time.
4.3 General Performance Data After power up or reset, the sensor readings are within specified performance within <30 seconds. In Table 1: General performance data are given. Table 1: General performance data Environmental Ambient Temperature Shock Vibration IP Pressure / Transport altitude Mechanical Weight Dimensions Housing Identification Antenna Identification DSP Board Identification General Power Supply Frequency Band Bandwidth Max. Transmit Power (EIRP) Interfaces Connector -40 ...
5 Hardware 5.1 UMRR sensor An example picture of a UMRR (universal medium-range radar) sensor (housing type 070707) is shown in the figures below. Figure 1: UMRR sensor, housing type 070707, front CONFIDENTIAL AND PROPRIETARY The Information contained in this document shall remain the sole exclusive property of s.m.s, smart microwave sensors GmbH and shall not be disclosed by the recipient to third parties without prior consent of s.m.s, smart microwave sensors GmbH in writing.
Figure 2: UMRR sensor housing 070707 rear CONFIDENTIAL AND PROPRIETARY The Information contained in this document shall remain the sole exclusive property of s.m.s, smart microwave sensors GmbH and shall not be disclosed by the recipient to third parties without prior consent of s.m.s, smart microwave sensors GmbH in writing. UMRR-0C Type 42 User Manual USA-Canada_100MHz.
5.2 Sensor Dimensions All values given in mm. Figure 3: Housing 070707 Dimensions CONFIDENTIAL AND PROPRIETARY The Information contained in this document shall remain the sole exclusive property of s.m.s, smart microwave sensors GmbH and shall not be disclosed by the recipient to third parties without prior consent of s.m.s, smart microwave sensors GmbH in writing. UMRR-0C Type 42 User Manual USA-Canada_100MHz.
6 Cables and connectors 6.1 Sensor connector The used sensor connector is a 12-pin male (plug) circular bayonet type connector (water proof IP67, series LF10WBRB-12PD, manufacturer Hirose, Japan). A female counterpart (socket)e.g. LF10WBP-12S has to be used to connect to the sensor.
Please note that in the standard configuration the sensor has no 120Ohms resistor on board (CAN bus termination between CAN_Lo and CAN_Hi and RS485 IN / OUT). The resistors are nevertheless required at either end of a CAN / RS485 bus and is in most cases integrated in the cable delivered along with the sensor (if cable is manufactured by Smartmicro). For the RS485 data interface there is a 120Ohms resistor on board of the sensor.
7 Data interfaces 7.1 CAN data interface This specification gives a detailed description of the CAN data communication used in the UMRR based systems on the sensor CAN. The UMRR is compliant with CAN 2.0B standard. CAN is a very robust full duplex bidirectional interface. 7.
Figure 5: CAN bit timing for UMRR sensor Figure 6: CAN bit timing as defined by the CAN protocol 7.3 RS485 data interface The RS485 interface from the UMRR sensor has a predefined speed of 230400 baud/s. Typical other data rates are between 921.6kBit/s and 56.7kBit/s. The RS485 message payload is identical to the CAN format. The data messages will be sent in several packets of one byte. Every cycle begins with a start sequence and ends with a calculated checksum and an end sequence.
Table 3: RS485 message structure Byte\Bit 0 1 2 3 x x x x x x x x 0 1 2 3 4 7 6 5 4 3 2 1 Start sequence (4 x UINT8) 0 0xCA 0xCB 0xCC 0xCD Data payload (n x UINT8) XOR Checksum (UINT8) End sequence (4 x UINT8) 0xEA 0xEB 0xEC 0xED Every data message consists of its own message ID, the number of used data bytes and the data bytes itself. The checksum is calculated on all data except the start sequence and the end sequence. The Checksum is a simple XOR Assignment of all n data bytes.
Table 4: Structure of a RS485 data payload block Byte\Bit 0 1 2 3 4 5 6 7 8 9 10 7 6 5 4 3 2 1 CAN message ID (UINT16) 0 High Low CAN message length (UINT8) CAN data payload (length x UINT8) The sensor receives only one message per cycle. It is important to wait for the end sequence to send an additional command. CONFIDENTIAL AND PROPRIETARY The Information contained in this document shall remain the sole exclusive property of s.m.
8 Designated use The UMRR general purpose medium range radar is suitable for any application where the distance to and relative radial speed of large objects has to be measured. Typical applications are: Robotics: measure shortest distance to obstacle. Security: detect motions and measure distance to moving object. Traffic management: detect moving objects, count those, measure speed and measure distance to moving object. Cranes: measure distance to ground. Aircraft: measure distance to ground.
9 Compliance 9.1 Declaration of Conformity for USA This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
9.2 Declaration of Conformity for CANADA 9.2.1 Declaration of Conformity in English This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.
9.3 Declaration of Conformity for EUROPE The UMRR-0C Type 42 has been marked with the CE mark. This mark indicates the compliance with the Directive 2014/53/EU. A full copy of the Declaration of Conformity can be obtained from s.m.s, smart microwave sensors GmbH, 38108 Braunschweig, Germany or via E-Mail. Please contact us at info@smartmicro.de. 9.4 Safety Instruction Note: Parts of the UMRR-0C device may be hot.
