IEE VITA001 Radar Sensor User Manual
- June 6, 2024
- IEE
Table of Contents
IEE VITA001 Radar Sensor
Introduction
This document describes the RF system “VitaSense” for occupancy detection in vehicles. It covers sensors that are identified FCC ID: NSZVITA001 on the label.
Abbreviations
FMCW Frequency Modulated Continuous Wave
MMIC Monolithic Microwave Integrated Circuit
CAN Controller Area Network
RF Radio Frequency
General system description
The interior temperature of a vehicle can reach a critical level in 15 – 20
minutes and, as children are affected by heatstroke faster than adults, the
results can be deadly. VitaSense is a RF system that detects children left in
vehicles and provides this information to the vehicle’s warning systems. It
detects children, including new-borns, based on their movements or breathing
even when they are sleeping. The VitaSense sensor is operating using the
frequency modulated continuous wave radar concept (FMCW) and does not transmit
any data.
The sensor may only be installed such that it is connected to a vehicle CAN
bus. The sensor is operational for several minutes after each activation.
Usage restrictions
This device is restricted to factory installation in the interior cabin of a passenger motor vehicle–i.e., a “passenger car” or a “multipurpose passenger vehicle” that has more than one row of seats, as those terms are defined at 49 CFR § 571.3, as described in this technical description, for the primary purpose of in-cabin monitoring functions and shall not be marketed in after- market add-on products.
The VitaSense sensor is subject to the conditions under the FCC waiver order DA 21407.
Hardware
VitaSense sensor
The system transmits a frequency modulated signal, a low-power electromagnetic wave, that is then reflected by occupants or objects in the vehicle’s interior. As, due to their movement, occupants modify these reflected signals differently, the system can discriminate between them and inanimate objects.
RF-Transceiver
The MMIC is a system based on FMCW radar technology and it is operating in the 60 GHz to 64 GHz band.
Data Interface
The VitaSense sensor is connected to the vehicle via the CAN bus.
Connectors
The sensor connector mates with 4-pin female connector of the vehicle. The pin assignment of the mail connector (sensor side) is shown in Table 1 “Connector pinout”.
Pin|
---|---
1| GND
2| CAN LOW
3| CAN HIGH
4| VBatt
System integration and use cases
The VitaSense sensor is designed to be installed hidden behind the head liner
of the vehicle with the antenna oriented towards the observation region of
interest in the vehicle’s interior. In regular use cases, detection of
children left behind in a vehicle, the minimal distance between the VitaSense
sensor is greater than 20cm.
Declaration of conformity
Declaration of conformity for USA (FCC ID: NSZVITA001)
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.
Changes or modifications not expressly approved by the manufacturer could void
the user’s authority to operate the equipment.
Information included in this document is the property of IEE S.A. Copy, use or disclosure of its contents, even in part, is not permitted without the prior written agreement of IEE. This document is strictly IEE confidential.
Doc. No.: WI-00000
Ver No.: 01
Ver Date: 00-MMM-2014
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>