Beijing Jingwei Hirain Technologies MRR510 Millimeter Wave Radar User Manual

Beijing Jingwei Hirain Technologies MRR510 Millimeter Wave Radar

Introduction

Purpose
This document is the introduction of the forward medium-range millimeter wave radar which is designed and produced by HiRain Technologies Co., Inc.
Scope
This document is only the reference for users of millimeter wave radar products of HiRain Technologies Co., Inc.
Abbreviations

• MRR: Mid-Range Radar
• FCW: Forward Collision Warning
• AEB: Autonomous Emergency Braking
• ACC: Adaptive Cruise Control
• FOV: Field of View

Production

The forward mid-range millimeter-wave radar is installed in front of the vehicle for obstacles detections, target parameters estimation, target tracking, and target recognition. Forward radar primarily supports autonomous driving systems of L2 applications and above, such as FCW, AEB, and ACC.
FOV

Specification

Field of View

| Horizontal FOV：±10°（medium range）/ ±45°（near range）

Vertical FOV：±9°

Range Scope| 0.5~190m（medium range）/ 0.5~50m（near range）
Relative Velocity Scope| -60 ~50 m/s
Range Precision| ±0.1 m
Velocity Precision| ± 0.05 m/s
Angle Precision| ±0.5°
Power Dissipation| < 5W
Supply voltage| 12V
Operating Temperature| -40~ 85 ℃
Storage Temperature| -40~ 105 ℃
Dustproof and Waterproof Level| IP6K7K
Connector| 2xCAN/CAN-FD

Structure

Connector Type

Definition of Connector Pin

Parameters in the following table are measured at voltage 12V.

Pin

|

Function

|

Signal Type

|

Current(A)

| Maximum Current & Duration(A/ms)
---|---|---|---|---
1| GND| Ground| 0.2| 600mA/25ms

2

|

CAN2_H

| CAN

Communication

|

NA

|

—

3

|

CAN1_L

| CAN

Communication

|

NA

|

—

4

|

CAN1_H

| CAN

Communication

|

NA

|

—

5| POWER| Powe（r  KL15）| 0.2| 600mA/25ms

6

|

CAN2_L

| CAN

Communication

|

NA

|

—

7| NC| Reserved| NA| —
8| NC| Reserved| NA| —

Installation
There are three locating holes on the lower shell of the radar, which are installed on the bracket of the vehicle through three M6 bolts; There is a main positioning column and an auxiliary positioning column outside the housing of the radar, which can achieve accurate positioning . The installation position and orientation are shown in the following figure

Using the radar
The radar starts working when it is powered on. No configuration parameters is required.

FCC Information

This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 50cm between the radiator & your body.

RF Exposure Statement

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. 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.

Warning: Changes or modifications to this unit not expressly approved by the  party responsible for compliance could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

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