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TIDEP-01001

Vehicle occupant detection reference design

Design files

TIDEP-01001

Design files

Overview

This reference design demonstrates the use of the AWR6843 60GHz single-chip mmWave sensor with integrated DSP, as a Vehicle Occupant Detection (VOD) and Child Presence Detection (CPD) Sensor enabling the detection of life forms in a vehicle. This design provides a reference software processing chain which runs on the C674x DSP, enabling the generation of a heat map to detect occupants in a Field of View (FOV) of ±60 degrees.

 

Additional information

Reference software processing chain to detect the occupants inside a car using radar.

Features
  • Demonstration of mmWave sensor technology for robust detection of occupants (adults, children, pets) in a vehicle
  • Generate presence heat map with FOV of ±60 degrees
  • Source code for processing and detection based on mmWave software development kit (SDK)
  • Based on proven EVM hardware designs, enabling quick time to market and out-of-the-box demonstration
  • Radar front-end and detection configuration fully explained
Download View video with transcript Video

Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Design guide — TIDEP-01001
PDF | HTML
TIDUE95A.PDF (2035 KB)

Reference design overview and verified performance test data

download Gerber file — TIDEP-01001
SWRC355C.ZIP (121397 KB)

Design file that contains information on physical board layer of design PCB

download Schematic — TIDEP-01001
SWRR164C.ZIP (73375 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

Arm Cortex-M4 MCUs

TM4C1294NCPDT — 32-bit Arm Cortex-M4F based MCU with 120-MHZ, 1-MB flash, 256-KB RAM, USB, ENET MAC+PHY

Data sheet: PDF
CAN transceivers

TCAN1042HGV-Q1 — Automotive Fault Protected CAN Transceiver With Flexible Data-Rate

Data sheet: PDF | HTML
Analog switches & muxes

TMUX1574 — 5-V, 2:1 (SPDT), 4-channel analog switch with powered-off protection & 1.8-V input logic

Data sheet: PDF | HTML
Digital temperature sensors

TMP112 — ±0.5°C 1.4V-to-3.6V digital temperature sensor with I²C/SMBus

Data sheet: PDF | HTML
Analog switches & muxes

TS3A5018 — 3.3-V, 2:1 (SPDT), 4-channel general-purpose analog switch

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS7A8101-Q1 — Automotive 1-A, high-PSRR, adjustable low-dropout voltage regulator with enable

Data sheet: PDF | HTML
Multi-channel ICs (PMICs)

LP87524B-Q1 — Multiphase 4MHz, 4A/1.8V + 2.5A/2.3V + 1.5A/3.3V + 1.5A/1.2V buck converters for AWR and IWR MMICs

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS796 — 1-A, low-dropout voltage regulator with enable

Data sheet: PDF | HTML
Automotive mmWave radar sensors

AWR6843 — Single-chip 60-GHz to 64-GHz automotive radar sensor integrating DSP, MCU and radar accelerator

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS7A88 — 1-A, low-noise, high-PSRR, dual-channel adjustable ultra-low-dropout voltage regulator

Data sheet: PDF | HTML
Shunt voltage references

LM4040 — Fixed voltage, 45-µA, precision micropower shunt voltage reference

Data sheet: PDF | HTML

Start development

Hardware

Evaluation board

AWR6843ISK — AWR6843 single-chip 60-GHz to 64-GHz automotive radar sensor antenna plug-in module

AWR6843ISK is an easy-to-use 60 GHz mmWave sensor evaluation kit based on AWR6843 device. The AWR6843ISK may be used to evaluate the AWR6843 and AWR6443 devices. This board is powered by USB interface and enables access to point-cloud data over USB or CAN-FD interface.

This kit is supported by (...)

Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDEP-01001 — Vehicle occupant detection reference design TIDEP-01025 — mmWave diagnostic and monitoring reference design
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AWR6843ISK — AWR6843 single-chip 60-GHz to 64-GHz automotive radar sensor antenna plug-in module

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Hardware development
Reference design
TIDEP-01001 — Vehicle occupant detection reference design TIDEP-01025 — mmWave diagnostic and monitoring reference design
TI’s Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Type Title Date
* Design guide Vehicle Occupant Detection Reference Design (Rev. A) PDF | HTML Apr 27, 2020
Data sheet AWR6443, AWR6843 Single-Chip 60 to 64GHz mmWave Sensor datasheet (Rev. E) PDF | HTML Apr 30, 2025
Data sheet AWR1642 Single-Chip 77 and 79GHz FMCW Radar sensor datasheet (Rev. D) PDF | HTML Sep 12, 2024
Technical article Detecting vehicle occupancy with mmWave sensors PDF | HTML Apr 30, 2018

Related design resources

Software development

SOFTWARE DEVELOPMENT KIT (SDK)
MMWAVE-SDK — mmWave software development kit (SDK) for xWR1443, xWR1642, xWR1843, xWR6443 and xWR6843

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