People Counting for Demand Controlled Ventilation Using 3D Time-of-Flight (ToF) Reference Design
TIDA-00750
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This reference design uses TI’s Processor Linux Software Development Kit (SDK) and runs on TI’s AM437x EVM while still achieving people counting accuracy over 90%.

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Key Document

Description

People counting for demand controlled ventilation using 3D time-of-flight (ToF) reference design is a subsystem solution that uses TI’s  3D ToF image sensor combined with tracking and detection algorithms to count the number of occupants present in a given area with high resolution and accuracy. The sensor technology is developed in standard CMOS, allowing systems to achieve very high integration at a lower system cost. Because ToF image sensor processes visual data in three dimensions, the sensor can detect the exact shape of a human body along with track the movement and location of people with unprecedented precision, including subtle movement changes. For this reason, ToF cameras are potentially capable of performing real-time people counting and people tracking functions much more effectively than traditional surveillance cameras and video analytics.

Features
  • Accuracy:  >90%
  • Configurable response time, occupancy data available in real-time or periodically
  • Wide field of View: H74.4º x V59.3º
  • Being independent of ambient light, 3D ToF camera can even see in the dark
    • Auto-illumination
    • Four NIR lasers provide large illumination area
    • Short diffused laser pulses inherently eye-safe
  • Runs on an embedded platform

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Schematic/Block Diagram

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TI Devices (7)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
AM4372  Sitara Processor: Arm Cortex-A9  Sitara processors  Sample & Buy View Design Kits & Evaluation Modules
AM4376  Sitara Processor: Arm Cortex-A9, PRU-ICSS  Sitara processors  Sample & Buy View Design Kits & Evaluation Modules
AM4377  Sitara Processor: Arm Cortex-A9, PRU-ICSS, EtherCAT  Sitara processors  Sample & Buy View Design Kits & Evaluation Modules
AM4378  Sitara Processor: Arm Cortex-A9, PRU-ICSS, 3D graphics  Sitara processors  Sample & Buy View Design Kits & Evaluation Modules
AM4379  Sitara processor: Arm Cortex-A9, PRU-ICSS, EtherCAT, 3D graphics  Sitara processors  Sample & Buy View Design Kits & Evaluation Modules
OPT8241  QVGA-Resolution 3D Time-of-Flight (ToF) Sensor  Specialty sensors  Sample & Buy Not Available
OPT9221  Time-of-Flight (ToF) Controller for OPT8241  Specialty sensors  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
AM4376 Download -
AM4377 Download -
AM4378 Download -
AM4379 Download -
OPT8241 Download -
OPT9221 Download -

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 4942 04 May 2016
Design files (2)
Title Type Size (KB) Date
ZIP 377 02 May 2016
ZIP 593 02 May 2016

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