smartmicro UMRR9D98 Moving Platform Installation Guide

smartmicro UMRR9D98 Moving Platform

Product Information

Specifications

• Brand: s.m.s, smart microwave sensors GmbH
• Location: In den Waashainen 1, 38108 Braunschweig, Germany
• Contact: Phone +49 531 39023-0, Fax +49 531 39023-599, Email info@smartmicro.de
• Website: www.smartmicro.com
• Date: 24. April 2024

Product Usage Instructions

Mounting Positions
For best performance, the sensor should be mounted at a height of 0.5m to 0.8m above the ground. It can also be installed at a maximum height of 2m, such as on the roof of a vehicle.

• Front or Rear Mounting
  The sensor can be mounted behind the bumper or in front of the air intake for optimal performance.

• Corner Mounting
  Corner mounting is also possible for the sensor installation.

• Coordinate System
  The radar sensor’s coordinate system is illustrated in polar coordinates. The azimuth angle refers to the horizontal axis, and the elevation angle refers to the vertical axis, all relative to the mounting position.

• End Product Labeling Requirements
  Ensure compliance with labeling requirements for the end product.

• Regulatory Compliance Statement
  Compliance statements for FCC (USA) and ISED (Canada) are provided for regulatory purposes.

FAQ

• Q: Can the sensor be mounted on any type of car?
  A: There are almost no restrictions on the type of car to be used, as long as it allows for the sensor to be mounted within the specified height range for optimal performance.

• Q: What are the mounting examples for the sensor?
  A: Mounting examples include behind the bumper, in front of the air intake, on top of the roof, and corner mounting.

INSTALLATION GUIDE – MOVING PLATFORM

• KEYWORD(S):
  Installation, Moving Platform

• DATE :
  24. APRIL 2024

• STATUS:
  RELEASED

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

MOUNTING POSITIONS

• There are almost no restrictions on the type of car to be used, except that it should allow for the sensor to be mounted at a height of 0.5m to 0.8m (1.6ft to 26.3ft) above the ground for best performance. However, it is possible to install the sensor on a maximum height of 2m (6.6ft), like in a “bar” on the roof of the vehicle.
• The sensor can be mounted on a vehicle as follows:
  • On the front
  • Behind the bumper
  • On the hood
  • On the top with up to 2m (6.6ft) mounting height
  • Behind the windshield
• Please make sure to mount the sensor the right way around. The label on the back of the sensor indicates which side of the sensor is the top side.

FRONT OR REAR MOUNTING
The sensor should be mounted in the front on the centerline of the car as illustrated below. The azimuth (horizontal) mounting angle should be 0° and the elevation (vertical) mounting angle should be 1.5° (facing up), if the sensor height is below 0.5m (1.6ft). If the sensor height is above 0.5m (1.6ft), the elevation (horizontal) angle should be 0°. Sensor mounting examples:

CORNER MOUNTING

• The sensors can be mounted close to the corners of the vehicle.
• The azimuth angle of the sensor for a corner-based application (e.g. BSD/RCTA) is usually set to 40° from the vehicle’s longitudinal centreline.
• Based on experience, smaller installation tolerances can be achieved, if the sensor is mounted to the bumper rather than to the chassis.
• The mounting position (x-position, y-position, azimuth and elevation angle) is selected in the corner of the bumper in a way that the required warning area of the corner-based applications and other functions are covered.

COORDINATE SYSTEM
Below, the coordinate system of the radar sensor is illustrated. The data are reported in polar coordinates. The origin of the coordinate system is the middle of the RX antenna array of each sensor (zero axis). The azimuth angle refers to the horizontal axis, whereas the elevation angle refers to the vertical axis as indicated below. All the values are provided relative to the mounting position.

GENERAL INSTALLATION GUIDELINES

Some of the general guidelines for the sensor positions are given below:

• The bumper in front of the sensor should be as straight as possible, since each curve has an influence on the performance of the sensor.
• There should be only one layer of plastic (i.e. the bumper skin) in front of the sensor, but no second plastic part (inlay or the like).
• The bumper should consist of standard plastic material to avoid influences on the performance. The thickness of the material itself has an influence on the performance as well, so it should be as constant as possible. The material thickness of the bumper should not exceed the current state-of-art single layer bumper designs.
• The azimuth installation angle of the sensor should be as close as possible to the defined value to avoid influences on the performance.
• The elevation angle of the sensor should be as close as possible to the defined value to avoid influences on the performance and unnecessary ground reflections.

For a better overview, please note the following installation instructions:

MATERIAL RECOMMENDATION
Since the material in front of the sensor can have an influence on the sensor performance, a few recommendations can be useful:

• Please make sure that no metal resides in front of the plastic radome surface
• Tested materials are:
  • Clear makrolon material of 10mm (0.4in) thickness can be placed in front of the sensor radome
  • PP materials can be placed in front of the sensor, but they are not as protective as other materials
• It is possible to paint the sensor radome but the paint needs to be chosen carefully depending on the ingredients
  • Red color, for example, may contain iron which deteriorated the sensor performance

CLEARANCES

• The space between the sensor and the bumper should be empty. Please make sure that no additional parts of the vehicle like other sensors or cables are placed in front of the sensor.
• The space directly around the sensor should be left empty for at least 10cm (3.9in).
• Additionally, the sensor requires a free field of view of -70° to +70° in azimuth (horizontal) and at least – 45° to +45°in elevation (vertical) direction.

UNWANTED EFFECTS
While the position of the sensor is crucial for the field of view, the sensor performance may also strongly depend upon the surroundings of the sensor. Unwanted effects due to the surroundings of the sensor and the bumper itself need to be minimized. Various influences can be distinguished as described in the following.

ELECTROMAGNETIC RF CONSIDERATIONS

• Using EM (Electromagnetic) simulations, smartmicro can analyse the effects of:
  • Bumper material
  • Bumper shape
  • Bumper decoration and minimize their influence by selecting the ideal mounting position.
• The paint coating of the bumper usually has a smaller influence on the sensor performance than the mounting position. As a rule, it can be said that:
  • The paint should have only one layer (or one set of layers), considered a standard for vehicles.
  • A second layer (or second set of layers) of paint should be avoided, as it increases attenuation and, therefore, decreases the sensor performance.
  • The paint should not include an excessive amount of metal particles to avoid an influence on the sensor performance.

INDIRECT REFLECTION PATHS OR VIBRATIONS
The radar waves may be reflected inside the bumper multiple times like in a waveguide. Due to such reflections, moving parts inside the bumper could have an influence on the radar performance or may cause false alarms. These reflections can be blocked using “blinds” with or without RAM (Radar Absorbing Materials) attached. Changing the sensor position can be an alternative solution.

ELECTRICAL CONSIDERATIONS
The customer system should be designed in a way that an incorrect installation, for example accidentally swapping sensors meant for different locations, is not possible.
Beside the necessary electrical connections (system harness) for the sensors, no other electrical components like communication bus systems, other antenna systems, live wires, etc. should be placed close to the sensor to avoid electrical crosstalk.

OTHER CONSIDERATIONS
Please make sure to avoid excessive temperatures, for example, the installation position of the sensor should not be close to the exhaust system of the vehicle.
Any conductive layer inside or outside of the bumper surface will reduce the sensor range and performance. Usually, conductive layers on the outside cannot be avoided, but mechanical design measures should be taken to avoid such layers on the inner surface. Modern bumper designs are (almost) closed in such a way that water, ice, snow, or other layers are not building up inside.

END PRODUCT LABELING REQUIREMENTS

For a product using DRVEGRD 152, a label as shown below has to be used on the end system.

It must contain at least the following information:

1. The FCC ID of the product with Grantee Code (XYZ) and Product ID (UPN)
2. The IC/ISED ID with the Company Number (CN) and Product ID (UPN)

• For smartmicro, the FCC Grantee Code is W34.
• And the Company Number with ISED is 10652A.
• UPN is the Unique Product Number which smartmicro assign to the sensor.
• Example for DRVEGRD 152:
  • FCC ID: W34UMRR9D98
  • ISED ID: 10652A-UMRR9D98

REGULATORY COMPLIANCE STATEMENT

DECLARATION OF COMPLIANCE FOR USA / FCC

• All device has been tested and found to comply with the requirements set forth in 47 CFR Part 95, Subpart M for both fundamental emissions and unwanted emissions. These limits are designed to provide reasonable protection against any harmful interference when the device is operated in a commercial environment.
• 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 the requirements set forth in 47 CFR Section 95.3385 addressing RF exposure from radio frequency devices. To maintain compliance, the minimum separation distance from the antenna to general bystander is 20 cm.

COMPLIANCE STATEMENT FOR CANADA / ISED

COMPLIANCE STATEMENT IN ENGLISH
This device complies with Industry Canada license-exempt RSS standard(s).

1. Operation is subject to the following two conditions:
2. This device may not cause interference, and
3. This device must accept any interference, including interference that may cause undesired operation of the device.

IC Radiation Exposure Statement:

• This equipment complies with IC RSS-102 radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with the minimum distance 20cm between the radiator & your body.
• Any deviation from the process described may cause the module or radar sensors not to comply with the regulatory authorizations of the module and thus void the user’s authority to operate the equipment.
• Any changes to hardware, hosts or co-location configuration may require new radiated emission and SAR evaluation and/or testing.
• The regulatory compliance of our radar sensors do not exempt the end-product from being evaluated against applicable regulatory demands; for example, FCC Part 15B criteria for unintentional radiators [9].
• The end-product manufacturer must follow all the engineering and operating guidelines as specified by the grantee.
• This module is for OEM integrators only.
• Any notification to the end user about how to install or remove the integrated radio module is NOT allowed.
• If these conditions cannot be met or any of the operating instructions are violated, the regulatory authorization will be considered invalid. Under these circumstances, the integrator is responsible to re-evaluate the end-product including the radar sensor module and obtain their own regulatory authorization.

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 smartmicro 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, smartmicro 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 own 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 the statements made herein due to specific applications and due to specific surroundings. It is important that the customer/user invents and certifies its own installation, test or other procedures to validate the performance of the products in the particular/specific application before commercialization. Although products are well optimized to be used for the intended applications stated herein, it must also be understood by the customer/user that the detection probability may not be 100 % and 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, 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. We do 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 complies 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.

References

• smartmicro® | Sensor Technology

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