Smartmicro TRUGRD LR UMRR1231 Universal Medium Range Radar User Manual
- June 9, 2024
- smartmicro
Table of Contents
USER MANUAL TRUGRD LR
PROJECT TITLE:
TRUGRD LR USER MANUAL
PROJECT NO.:
KEYWORD(S):
TRUGRD LR RADAR SENSOR
DATE:
28 NOVEMBER, 2022
STATUS:
IN PROGRESS
ABBREVIATIONS
| CAN | Controller Area Network |
|---|---|
| DSP | Digital Signal Processing; Digital Signal Processor |
| FMCW | Frequency Modulated Continuous Wave |
| RS485 | Physical communication layer standard EIA RS-485 |
| SOC | System on Chip |
| UMRR | Universal Medium-Range Radar |
INTRODUCTION
This document is a short documentation of the general purpose universal medium range radar TRUGRD LR radar sensor with type 49 antenna.
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.
For this general purpose measurement application, range and relative radial
speed and the angle value of each reflector inside the antenna beam are
measured and the results are reported via the communication links cycle by
cycle.
4.2 TRANSMIT SIGNAL
The UMRR transmit frequency is in the 24 GHz ISM band (24000 MHz to 24250
MHz).
Antenna type 49 consists of one TX antenna with 8 uniform RX antennas. The TX
antenna have a 3dB antenna beam width of +-9° in azimuth and +-5,5° in
elevation. The 8 RX antennas have a 3dB antenna beam width of +-12° in
azimuth and +-4.3° in elevation. Highest TX antenna sidelobe: +- 32°, highest
RX sidelobe at +-43° in azimuth.
Note: max. Gain for TX antenna have max. gain of 19.4 dBi at boresight. The RX
Antenna has a maximum gain at boresight of 15.3 dBi.
4.3 GENERAL PERFORMANCE DATA
After power up or reset, the sensor readings are within specified performance
within <10 seconds.
In Table 4-1 the general performance data of TRUGRD LR are given.
Table 4-1: General performance data
Environmental| |
---|---|---
Ambient Temperature| -40 … +80| degree C
Shock| 100| grms
Vibration| 14| grms
IP| 67|
Pressure / Transport altitude| 0…10.000
Mechanical| m
| |
Weight| s 200| g
Dimensions| Figure 5|
Housing Identification| 7|
Antenna Identification| 49|
DSP Board Identification| 12|
General| |
Power Supply| 7 … 32′ 5| V DC
W
Frequency Band| 24.0…24.25| GHz
Bandwidth| < 250| MHz
Interfaces| CAN V2.0b (passive)
RS-485
Ethernet 100Mbit|
Connector| Hirose LF10 series| CAN, Power,
RS485, Eth.
- measured at connector
- measured at connector, min. voltage slew rate 500V/s or max. voltage rise time 15ms; supply source impedance 0.5Ohms.
- Typical value 9W @20°C, may slightly increase over temperature.
4.4 SOFTWARE AND FIRMWARE VERSION
The software in the TRUGRD LR radar processor has Version 6.
HARDWARE
5.1 UMRR SENSOR
An example picture of a UMRR (universal medium-range radar) sensor (housing
type 070E01) is shown in the figures below. 
5.2 SENSOR DIMENSION
Figure 3: Sensor Dimension
FRONT
CABLES AND CONNECTORS
6.1 SENSOR CONNECTOR
The 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, is used to connect to the sensor. The
pin numbering of the socket is shown in Figure 6 the pin description is given
in Table 6-1.
Figure 6: View on solder cup side of socket (rear view of female counterpart
to be connected to sensor)
Table 6-1: Sensor connector pin out model TRUGRD LR
Pin No.| Function| Wire Color (MEDI type
#KU110C12J002)
---|---|---
1| SENSOR_ETH_TX1_P| gray/red
2| SENSOR_ETH_TX1_N| red / blue
3| SENSOR_RS485_RX_N| pink
4| SENSOR_RS485_RX_P| gray
5| SENSOR_RS485_TX_N| brown
6| SENSOR_RS485_TX_P| white
7| External GND| blue
8| V_SUPPLY| red
9| SENSOR_ETH_TX2_N| black
10| SENSOR_ETH_TX2_P| purple
11| CAN_H| green
12| CAN_L| yellow
Please note that in the standard configuration the sensor has 120 Ohms resistor on board (CAN bus termination between CAN_L and CAN_H).
For the RS485 data interface there is a 120 Ohms resistor on board of the
sensor.
A number of cable sets for initial operation and test purposes are offered by
Smartmicro, to deliver a fast set-up of a sensor system. Among those
preconfigured ready-to-run cables as well as cable stumps (pig tail cables or
various lengths) which carry the connector on one side and open wires on the
other.
6.2 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.
The CAN bit timing parts as defined by the CAN protocol Figure 8 can be
described as follows:
Sync: This part of bit time is used to synchronize the various nodes on the
bus. An edge is expected to lie within this segment. For the UMRR sensor, this
segment is always 1 TIME QUANTUM (TQ).
- Prop: This part of the bit time is used to compensate for the physical delay times within the network. It is twice the sum of the signal’s propagation time on the bus line, the input comparator delay, and the output driver delay. For the UMRR sensor, this segment is programmable from 1 to 8 TIME QUANTA (TQ).
- Phase 1: This phase is used to compensate for positive edge phase error. For the UMRR sensor, this segment is programmable from 1 to 8 TIME QUANTA (TQ) and can be lengthened by resynchronization.
- Phase 2: This phase is used to compensate for negative edge phase error. For the UMRR sensor, this segment is programmable from 2 to 8 TIME QUANTA (TQ) and can be shortened by resynchronization.
6.4 RS485 DATA INTERFACE
The RS485 interface from the UMRR sensor has a predefined speed of 115200
baud/s. Typical other data rates are between 921.6kBit/s and 56.7kBit/s.
6.5 ETHERNET CONNECTION
The sensor supports UDP via Ethernet in a Local Area Network (LAN).
Communication over low bandwidth environments or routed networks such as the
world wide web are not supported.
Features:
- Ethernet standards IPv4, ARP, IGMP, IP multicast and UDP
- smartmicro’s proprietary communication protocol “smartmicro transport protocol” with:
o IP/UDP Multicast based discovery protocol
o Client ID based setup
o Sensor data transmission
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 is 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
DECLARATION OF CONFORMITY
8.1 DECLARATION OF CONFORMITY FOR USA
Note: This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates uses and
can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver .
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected .
- Consult the dealer or an experienced radio / TV technician for help.
Modifying the device without smartmicro’s authorization may result in the
device being no longer compliant with FCC requirements. In that event, your
right to use the device may be limited by FCC regulations, and you may be
required to correct any interference to radio or television communications at
your own expense.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the device.
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.
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment.
This transmitter must not be co‐located or operating in conjunction with any
other antenna or transmitter.
This equipment should be installed and operated with minimum distance 20cm
between the radiator &you body.
8.1.1 FCC LABEL
8.2 DECLARATION OF CONFORMITY FOR CANADA
8.2.1 DECLARATION OF CONFORMITY IN ENGLISH
This device complies with Industry Canada license-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.
This equipment complies with ISEDC RF radiation exposure limits set forth for
an uncontrolled environment. This transmitter must not be co-located or
operating in conjunction with any other antenna or transmitter.
8.2.3 INDUSTRY CANADA (IC) LABEL
LEGAL DISCLAIMER NOTICE
This document is subject to change without notice.
The installation procedure, field test or other procedure described herein
(“manual”) is a mere recommendation or proposal by smart micro for installing
and/or implementing and/or otherwise using the product in generic/general
applications. The recommendations and proposals contained herein are believed
to be accurate as of the stated date. smartmicro disclaims any and all
liability for any errors, inaccuracies or incompleteness contained in this
manual or in any other disclosure relating to the manual. In particular, the
manual was designed for generic/general applications and has not been adapted
to a particular/specific purpose of use of the products.
Since the installation procedure, field test or other procedure may vary due
to the specific applications and surroundings, smart micro makes no
representations or warranties in relation to this manual or the information
and test procedures provided herein.
The manual is provided solely for informational purposes. It is the
customer’s/user’s responsibility to validate that the application of the
product is suitable for the customer’s/user’s particular/specific purpose.
The installation procedure, field test or other procedure for the products may
deviate from statements made herein due to specific applications and/or
surroundings. Therefore, it is important that customer/user invents and
certifies his own installation, test or other procedures to validate the
performance of the products in the particular/specific application before
their commercialization. Although products are well optimized to be used for
the intended applications stated, it must also be understood by the
customer/user that the detection probability may not be 100% and that the
false alarm rate may not be zero. In case of uncertainties with the
installation, test or other procedures, the customer/user shall consult
smartmicro, a certified distributor, a subsidiary or appropriate professional.
To the extent permitted by applicable law, smartmicro disclaims (i) any and
all liability arising out of the application or use of the manual or product,
(ii) any and all liability of damages exceeding direct damages, including –
without limitation – indirect, consequential or incidental damages.
Please note that the application of the product may be subject to standards or
other regulations that may vary from country to country. smartmicro does not
guarantee that the use of products in the applications described herein will
comply with such regulations in any country. It is the customer’s/user’s
responsibility to ensure that the use and installation of products comply
with the regulatory requirements of their markets.
If any provision of this disclaimer is, or is found to be, void or
unenforceable under applicable law, that will not affect the validity or
enforceability of the other provisions of this disclaimer.
Proprietary – This document may be subject to change without notice. The
information shall remain the exclusive property of s.m.s, smart microwave
sensors GmbH.
s.m.s, smart microwave sensors GmbH
In den Waashainen 1
38108 Braunschweig
Germany
Phone: +49 531 39023-0
Fax: +49 531 39023-599
info@smartmicro.de
www.smartmicro.com
References
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