2A7MKSRR520Rear short-range ranging sensor

后向短距测距传感器（雷达） 产品介绍 Introduction to Hirain’s Rear Short-range Ranging Sensor（Radar） 北京经纬恒润科技股份有限公司 Beijing Jinwei Hirain Technologies Co., Inc. 第I页 目 录 1 概述/Introduction .............................................................................................. 1 1.1 目的/Purpose ....................................................................................... 1 1.2 范围/Scope .......................................................................................... 1 1.3 术语/Terminology ................................................................................ 1 2 产品/Product..................................................................................................... 1 2.1 Radar Principle雷达原理 .................................................................... 1 2.2 FOV范围/FOV ................................................................................... 2 2.3 性能指标/Parameters ........................................................................... 2 2.4 结构/Geometric Structure..................................................................... 3 2.5 接插件/Model No. of Harness Connector ............................................. 4 2.6 接插件引脚定义/Pin Definition of the Connector ................................. 4 2.7 Label标签........................................................................................... 5 3 雷达功能/ Radar function.................................................................................. 6 3.1 盲区监测BSD .................................................................................... 6 3.2 车门开启提示DOW ........................................................................... 7 3.3 后方横向交通预警RCTA ................................................................... 7 4 NOTICE ........................................................................................................... 8 第1页 1 概述/Introduction 1.1 目的/Purpose 北京经纬恒润科技股份有限公司设计生产的后向短距测距雷达产品介绍。 This docume nt introduces the Rear short-range ranging sensor (SRR) that designed and manufactured by Beijing Jinwei Hirain Technologies Co., Inc. 1.2 范围/Scope 本文档仅供北京经纬恒润科技股份有限公司的后向短距测距雷达产品用户 参考。 This document is used for reference only to the Rear short-range ranging sensor customers of Beijing Jinwei Hirain Technologies Co., Inc. 1.3 术语/Terminology SRR：Rear short-range ranging sensor 后向短距测距传感器 BSD：Blind Spot Detection盲点监测 RCTA：Rear Cross Traffic Alert 后方横向交通预警 DOW：Door Open Warning 车门开启预警 RCW：Rear Collision Warning 后向碰撞报警 2 产品/Product 后向短距测距雷达安装于车身侧方，对目标区域内的障碍物进行检测与参数 测量、跟踪以及目标类型识别能力。该雷达主要支撑L2及L2以上级别自动驾 驶系统的BSD、RCTA、FCTA、DOW、LCA等功能。 Rear short-range ranging sensor is insta lled right in the side of the vehicle , intende d to detect, measure, track and ide ntify obstacles in the target region. SRR mainly supports the functions of BSD、RCTA、FCTA、DOW、LCA for ADAS with L2 and above. 2.1 雷达原理/Radar Principle SRR520 uses the pulse doppler (PD) scheme as basic principle for its measurements. Compared with frequency modulated continuous wave (FMCW), it avoids the serious coupling between range and doppler doma ins , because these are mapped to a 2-dimens iona l frequency range by two succeeding fast Fourier transformations (FFTs), that are calculated in the processing unit of the sensor. SRR520采用了脉冲多普勒(PD)体制作为其测量的基本原理，与调频连续波 第2页 (FMCW)相比，避免了FMCW严重的距离-多普勒耦合。因为这些信息通过在传 感器处理单元中计算的两个快速傅里叶变换（FFT）映射到二维频率距离上。 2.2 天线/Antennas SRR520 uses 3 Tx antennas and 4 Rx antennas to radiate the microwave signa ls generated by radio frequency (RF) chip into the air and receive echoes reflected by targets. The gain is 16dBi for both antennas and 13dBi for single antennas. SRR520包含了3个发射(Tx)天线和4个接收(Rx)天线，用于将射频芯片产 生的微波信号按照设定的FOV辐射到空中，并接收目标反射回来的回波信号。 双天线同时发射的增益16dBi，单天线的13dBi。 2.3 FOV范围/FOV 图1为乘用车安装后向短距测距雷达后的波束覆盖范围示意。 FIG. 1 shows the beam coverage area of passenger car after the Rear short-range ranging sensor. 图 1 FOV示意图 Figure 1 Schematic diagram of FOV 2.4 性能指标/Parameters 表1 近距毫米波雷达系统性能指标 Table 1 Performance index of Rear short-range ranging sensor system 性能指标/Parameters 指标参数/Value 系统属性/System Characteristics 频段/Frequency 76~77 GHz 工作电压/Operating voltage 9V~16V 重量/Weight 120g 更新率/Update Rate 50ms 第3页 功能安全等级/Functional Safety Level ASIL B 覆盖范围/Range FOV（距离-水平角度平面） /(Range-Azimuth Plane) ±75° 距离/Range 0.5~100m 速度/Velocity -110 m/s ~50 m/s 俯仰角/Elevation ±10° 目标检测能力/Target Detection Ability 误报率 < 1次/500h 多目标分辨能力/Multi-Objects Discrimination Ability 距离分辨率/Range Resolution < 0.4 m 速度分辨率/Velocity Resolution < 0.14m/s 角度分辨率/Angular Resolution < 7° 参数测量精度/Parameter Precision 距离精度/Range Precision < 0.1 m 速度精度/Velocity Precision < 0.05 m/s 方位角精度/Azimuth Precision < 1° 其他指标要求 跟踪目标输出个数 Output Number of Tracking Targets 64 点云目标输出个数（可选） Output Number of Point Cloud (Optional) <=200 发射功率/ transmitted power < 33.9dBm 功耗/Power Consumption < 5W 额定电压/Nominal Voltage 12V 工作温度/Operating Temperature -40~ 85 °C 存储温度/Storage Temperature -40~ 105 °C 防尘放水等级/ International Protection IP6K9K 接口/Interface 2xCAN/CAN-FD，1xEthernet（可选） 2.5 结构/Geometric Structure 后向短距测距雷达尺寸为：70mm * 65mm * 31mm（带接插件尺寸）。 Rear short-range ranging sensor s ize is: 70mm * 65mm * 31mm ( with connector size) 第4页 图 2 结构示意图 Figure 2 Structure diagram 2.6 接插件/Model No. of Harness Connector 表2 线束端接插件型号 Table 2 Model No. of Harness Connector 接插件类型/Connector Type 型号/Model No. 供应商/Supplier 12P连接器（线束端）/12 Pin Connector 6189-8374 Sumitomo住友 板端/ Terminal 6188-6387 Sumitomo住友 (a) 板端接插件/Connector in PCB (b)线束端接插件/Connector in Harness 图 3接插件视图 Figure 3 Views of the Connector 2.7 接插件引脚定义/Pin Definition of the Connector 下表中参数为雷达在12V工作电压下的测量值。 Table 3 gives the measured pin value of the SRR operating in 12 Voltages. 第5页 表3 接插件引脚定义 Table 3 Pin Definition of the Connector 序号 接口定义 接口含义 1 N.C 未定义 2 POS1 位置编码1 3 CAN1_L CAN1信号 4 CAN2_L CAN2信号 5 P OS2/ High Side Driver1 位置编码2/高驱1 6 P OWER 供电正极 7 N.C 未定义 8 GND 供电负极 9 CAN1_H CAN1信号 10 CAN2_H CAN2信号 11 IGN/High Side Driver2 点火信号/高驱2 12 High Side Driver3 高驱3 2.8 Label标签 FCC ID: 2A7MKSRR520 标签尺寸/Label size：30mm*20mm 软件版本号/ Software version number：sw.1.00…

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QF094234 Page 1 of 1 Revision 0 Authority to Act as Agent Date: 18.07.2022 TUV Rheinland Group 762 Park Avenue Youngsville, NC 27596 To Whom It May Concern: I appoint TÜV Rheinland (China) Ltd. & Mr. Zhu Qiusheng to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the FCC or Industry Canada’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by TUV Rheinland Group, still resides with Beijing Jingwei Hirain Technologies Co., Inc. For TCB applications, We certify that we are not subject to denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Further, no party, as defined in 47 CFR 1.2002 (b), to the application is subject to denial of federal benefits, that includes FCC benefits. Thank you, Agency Agreement Expiration Date: 12 months By : Zhang, xuejian (Signature) (Print Name) Title : Project manager Telephone : 18501957332 On behalf of : Beijing Jingwei Hirain Technologies Co., Inc. (Company Name)

Confidentiality Letter Date: <2022-12-28> Subject: Confidentiality Request for FCC ID: 2A7MKSRR520 Pursuant to FCC 47 CRF 0.457(d) and 0.459 and IC RSP-100, Section 10, the applicant requests that a part of the subject FCC/IC application be held confidential. Type of Confidentiality Requested Exhibit Short Term Permanent Block Diagrams Short Term External Photos Short Term Permanent Internal Photos Short Term Permanent Operation Description/Theory of Operation Short Term Permanent Part List/Tune-Up Procedure Short Term Permanent Schematics Short Term Test Setup Photos Short Term Permanent User’s Manual Beijing Jingwei Hirain Technologies Co., Inc. has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Permanent Confidentiality: The applicant requests the exhibits listed above as permanently confidential be permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. Short-Term Confidentiality: The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of 180 days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Applicant is also aware that they are responsible to notify TUV Rheinland in the event information regarding the product or the product is made available to the public. TUV Rheinland will then release the documents listed above for public disclosure pursuant to FCC Public Notice DA 04- 1705. Sincerely, By: Zhang, xuejian (Signature/Title) (Print name)

SRR520uses3Txantennasand4Rxantennastoradiatethemicrowavesignals generatedbyradiofrequency(RF)chipintotheairandreceiveechoesreflectedby targets. Model：RFSRR520 Manufacturer：BeijingJingweiHirainTechnologiesCo.,Inc. MailingAddress：4F,Block1,No.14JiuxianqiaoRoad,ChaoyangDistrict,Beijing, P.R.China

External photo Front view Rear view Top view Bottom View Left side view Right side view Disassemblely view

FCC ID:2A7MKSRR520 标签尺寸：30mm*20mm 软件版本号：sw.1.00.00；硬件版本号：hw.1.00.00 2A7MKSRR520 2022LP9480 1.00.00 1.00.00

Internal photo PCB top side PCB bottom side PCB bottom side without shielding

MRT Technology (Suzhou) Co., Ltd Report No.: 2212RSU004-U2 Phone: +86-512-66308358 Report Version: V01 Web: www.mrt-cert.com Issue Date: 2023-01-17 Template Version:0.0 1 of 10 RF Exposure Evaluation Declaration FCC ID: 2A7MKSRR520 Applicant: Beijing Jingwei Hirain Technologies Co., Inc. Product: Rear short-range ranging sensor Model No.: SRR520 Brand Name: JINGWEI HIRAIN FCC Classification: Part 95 Vehicular Radar Systems (VRD) FCC Rule Part(s): FCC Part 2.1091 Received Date: 2022-12-01 Result: Complies Reviewed By: Jame Yuan Approved By: Robin Wu The test results relate only to the samples tested. The test results shown in the test report are traceable to the national/international standards through the calibration of the equipment and evaluated measurement uncertainty herein. The test report shall not be reproduced except in full without the written approval of MRT Technology (Suzhou) Co., Ltd. Report No.: 2212RSU004-U2 2 of 10 Revision History Report No. Version Description Issue Date Note 2212RSU004-U2 Rev. 01 Initial Report 2023-01-17 Valid Report No.: 2212RSU004-U2 3 of 10 CONTENTS Description Page 1. General Information ................................................................................................................................ 4 1.1. Applicant ........................................................................................................................................ 4 1.2. Manufacturer ................................................................................................................................. 4 1.3. Testing Facility ............................................................................................................................... 4 1.4. Product Information ....................................................................................................................... 5 1.5. Radio Specification under Test ...................................................................................................... 5 1.6. Applied Standards ......................................................................................................................... 5 2. RF Exposure Evaluation ......................................................................................................................... 6 2.1. Test Limits ..................................................................................................................................... 6 2.2. MPE Exemptions ........................................................................................................................... 7 2.3. Calculated Result ........................................................................................................................ 10 Report No.: 2212RSU004-U2 4 of 10 1. General Information 1.1. Applicant Beijing Jingwei Hirain Technologies Co., Inc. 4F, Block 1, No.14 Jiuxianqiao Road, Chaoyang District, Beijing, P.R.China 1.2. Manufacturer Beijing Jingwei Hirain Technologies Co., Inc. 4F, Block 1, No.14 Jiuxianqiao Road, Chaoyang District, Beijing, P.R.China 1.3. Testing Facility Test Site – MRT Suzhou Laboratory Laboratory Location (Suzhou - Wuzhong) D8 Building, No.2 Tian’edang Rd., Wuzhong Economic Development Zone, Suzhou, China Laboratory Location (Suzhou - SIP) 4b Building, Liando U Valley, No.200 Xingpu Rd., Shengpu Town, Suzhou Industrial Park, China Laboratory Accreditations A2LA: 3628.01 CNAS: L10551 FCC: CN1166 ISED: CN0001 VCCI: R-20025 G-20034 C-20020 T-20020 R-20141 G-20134 C-20103 T-20104 Test Site – MRT Shenzhen Laboratory Laboratory Location (Shenzhen) 1G, Building A, Junxiangda Building, Zhongshanyuan Road West, Nanshan District, Shenzhen, China Laboratory Accreditations A2LA: 3628.02 CNAS: L10551 FCC: CN1284 ISED: CN0105 Test Site – MRT Taiwan Laboratory Laboratory Location (Taiwan) No. 38, Fuxing 2nd Rd., Guishan Dist., Taoyuan City 333, Taiwan (R.O.C.) Laboratory Accreditations TAF: L3261-190725 FCC: 291082, TW3261 ISED: TW3261 Report No.: 2212RSU004-U2 5 of 10 1.4. Product Information Product Name Rear short-range ranging sensor Model No. SRR520 EUT Identification No. 22021201Sample#02 Product Voltage 9 ~ 16VDC (12VDC nominal) Working Temperature Rang -40°C ~ 85°C Note: The information of EUT was provided by the manufacturer, and the accuracy of the information shall be the responsibility of the manufacturer. 1.5. Radio Specification under Test Working Frequency Range 76 ~ 77GHz Radar Type Non-pulsed Radar (FMCW) Modulation type Fast chirp Sweep Bandwidth 376MHz Sweep time 50ms Sweep rate 18.38 MHz/μs 1.6. Applied Standards According to the specifications of the manufacturer, the EUT must comply with the requirements of the following standards: ⚫ FCC Part 2.1091 & KDB 447498 D04 Interim General RF Exposure Guidance v01 Report No.: 2212RSU004-U2 6 of 10 2. RF Exposure Evaluation 2.1. Test Limits According to FCC §1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in §1.1307(b) Limits For Maximum Permissible Exposure (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Average Time (Minutes) (A) Limits for Occupational/ Control Exposures 0.3-3.0 614 1.63 *(100) ≤6 3.0-30 1842/f 4.89/f *(900/f 2 ) <6 30-300 61.4 0.163 1.0 <6 300-1,500 -- -- f/300 <6 1,500-100,000 -- -- 5 <6 (B) Limits for General Population/ Uncontrolled Exposures 0.3-1.34 614 1.63 *(100) <30 1.34-30 824/f 2.19/f *(180/f 2 ) <30 30-300 27.5 0.073 0.2 <30 300-1,500 -- -- f/1500 <30 1,500-100,000 -- -- 1.0 <30 f= frequency in MHz. * = Plane-wave equivalent power density. Report No.: 2212RSU004-U2 7 of 10 2.2. MPE Exemptions For single RF sources (i.e., any single fixed RF source, mobile device, or portable device, as defined in paragraph §1.1307(b)(2) of this section): A single RF source is exempt if: (Option A) The available maximum time-averaged powe…

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MRT Technology (Suzhou) Co., Ltd Report No.: 2212RSU004-U1 Phone: +86-512-66308358 Report Version: V01 Web: www.mrt-cert.com Issue Date: 2023-01-17 1 of 33 RF MEASUREMENT REPORT FCC ID: 2A7MKSRR520 Applicant: Beijing Jingwei Hirain Technologies Co., Inc. Product: Rear short-range ranging sensor Model No.: SRR520 Brand Name: JINGWEI HIRAIN FCC Classification: Part 95 Vehicular Radar Systems (VRD) FCC Rule(s): FCC Part 95, Subpart M Received Date: 2022-12-01 Test Date: 2022-12-05 ~ 2022-12-07 Reviewed By: Jame Yuan Approved By: Robin Wu The test results relate only to the samples tested. This equipment has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified in ANSI C63.10-2013. Test results reported herein relate only to the item(s) tested. The test report shall not be reproduced except in full without the written approval of MRT Technology (Suzhou) Co., Ltd. Report No.: 2212RSU004-U1 2 of 33 Revision History Report No. Version Description Issue Date Note 2212RSU004-U1 Rev. 01 Initial Report 2023-01-17 Valid Report No.: 2212RSU004-U1 3 of 33 CONTENTS Description Page 1. General Information ................................................................................................................................ 5 1.1. Applicant ...................................................................................................................................... 5 1.2. Manufacturer ................................................................................................................................ 5 1.3. Testing Facility ............................................................................................................................. 5 1.4. Product Information ...................................................................................................................... 6 1.5. Radio Specification under Test .................................................................................................... 6 2. Test Configuration ................................................................................................................................... 7 2.1. Test Mode ..................................................................................................................................... 7 2.2. Test System Connection Diagram................................................................................................ 7 2.3. Test System Details ..................................................................................................................... 7 2.4. Test Software ............................................................................................................................... 7 2.5. Applied Standards ........................................................................................................................ 8 2.6. Test Environment Condition ......................................................................................................... 8 3. Measuring Instrument ............................................................................................................................. 9 4. Measurement Uncertainty ..................................................................................................................... 10 5. Test Result .............................................................................................................................................. 11 5.1. Summary ..................................................................................................................................... 11 5.2. Equivalent Isotropically Radiated Power (EIRP)........................................................................ 12 5.2.1. Test Limit .................................................................................................................................... 12 5.2.2. Test Procedure ........................................................................................................................... 12 5.2.3. Test Setting ................................................................................................................................ 12 5.2.4. Test Setup .................................................................................................................................. 13 5.2.5. Test Result ................................................................................................................................. 14 5.3. Occupied bandwidth .................................................................................................................. 15 5.3.1. Test Limit .................................................................................................................................... 15 5.3.2. Test Procedure ........................................................................................................................... 15 5.3.3. Test Setting ................................................................................................................................ 15 5.3.4. Test Setup .................................................................................................................................. 15 5.3.5. Test Result ................................................................................................................................. 16 5.4. Unwanted Emissions ................................................................................................................. 17 5.4.1. Test Limit .................................................................................................................................... 17 5.4.2. Test Procedure ........................................................................................................................... 18 5.4.3. Test Setting ........…

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Report No.: 2208RSU061-UT 1 of 5 RF Test Setup Photo Description: Radiated Emission Test Setup for 30MHz ~ 1GHz Description: Radiated Emission Test Setup for 1GHz ~ 18GHz Report No.: 2208RSU061-UT Description: Radiated Emission Test Setup for 18GHz ~ 40GHz Description: Radiated Emission Test Setup for 40GHz ~ 50GHz Report No.: 2208RSU061-UT Description: Radiated Emission Test Setup for 50GHz ~ 75GHz Description: Radiated Emission Test Setup for 75GHz ~ 110GHz Report No.: 2208RSU061-UT Description: Radiated Emission Test Setup for 110GHz ~ 140GHz Description: Radiated Emission Test Setup for 140GHz ~ 220GHz Report No.: 2208RSU061-UT Description: Radiated Emission Test Setup for Above 220GHz