Jrc Mobility NNH-102 Radar Sensor User Manual
- June 6, 2024
- Jrc Mobility
Table of Contents
NAKANO CENTRAL PARK EAST
10-1, Nakano 4-chome, Nakano-ku, Tokyo 164-8570, Japan
User Manual for RADAR SENSOR
1. Purpose
This document explains of JRC Mobility’s (hereinafter JRC-M’s) RADAR SENSOR.
Sufficient information is provided to understand the operation principle, the
set up and the tuning of the radar sensor.
2. General information
JRC-M’s RADAR SENSOR measures the distance, velocity, azimuth and received
power corresponding to each target. Such information is to be transformed from
the radar, every measuring cycle on the basis of Frequency Modulated
Continuous Wave (FMCW).
Figure 1 shows a photograph of JRC-M’s RADAR SENSOR with the bracket.
Figure 1: JRC-M’s RADAR SENSOR with the bracket
Figure 2 shows a photograph of the main cable (including the power cable and RS-485 communication cable) to be connected to the JRC-M’s RADAR SENSOR.
Figure 2: Main Cable (The power supply cable and RS-485 communication cable)
Figure 3 illustrates the connection from the JRC-M’s RADAR SENSOR to power supply and communication equipment.
Figure 3: Connection from the JRC-M’s RADAR SENSOR to power supply and communication equipment.
JRC-M’s RADAR SENSOR is mounted on an Unmanned Ground Vehicle (UGV) with four
wheels (tires) for smart agriculture, as illustrated in Figure 4.
JRC-M’s RADAR SENSOR is used to prevent the UGV from colliding surrounding
obstacles.
Figure 4: Image of the concept of JRC-M’s RADAR SENSOR
3. JRC-M’s RADAR Sensor Component Description
JRC-M’s RADAR SENSOR consists of the following components:
> Plastic molded radome through which the radar beams are emitted.
> Radio Frequency (RF) Printed Circuit Board (PCB) including the antenna
which is placed between the housing and the radome.
> Power supply wirings and communication wirings inside the housing,
connecting the PCB and the waterproof connector.
> Aluminum housing with waterproof connector for power supply cable and
RS-485 communication cable.
4. JRC-M’s RADAR SENSOR Software Operation
Only one operational mode is implemented; JRC-M’s RADAR SENSOR measures at the
regular intervals of FMCW. JRC-M’s RADAR SENSOR operates in this mode, as long
as the power is supplied by the UGV.
5. Troubleshooting
Figure 5 shows the JRC-M’s RADAR SENSOR with its rubber cap on the back
opened. In the normal state of the operation of JRC-M’s RADAR SENSOR, the LED
is blinking.
- Rubber cap
Figure 5: JRC-M’s RADAR SENSOR with its rubber cap on the back opened
Do not touch the parts on the board. Touching the parts may cause malfunction or failure.
Be sure to close the rubber cap when maintenance operation has been completed. Otherwise, water, mud, etc. may enter the radar housing, causing malfunction or failure.
6. Information to be included in User Manual
The following information must be included in the user manual to ensure
continued FCC regulatory compliance.
Radiofrequency radiation exposure Information:
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment and meets the FCC RF Exposure Guidelines. This
equipment should be installed and operated keeping the radiator at least 20cm
or more away from person’s body.
This transmitter must not be co-located or operated in conjunction with any other antenna or transmitter.
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