TIDUED6B august   2018  – april 2023

 

  1.   Description
  2.   Resources
  3.   Features
  4.   Applications
  5.   Design Images
  6. 1System Description
    1. 1.1 Key System Specifications
  7. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 mmWave Sensor
        1. 2.2.1.1 mmWave Sensor People Counting
        2. 2.2.1.2 IWR6843 UART Communication
          1. 2.2.1.2.1 IWR6843 Frame Output
          2. 2.2.1.2.2 IWR6843 Frame Header
          3. 2.2.1.2.3 TLV Elements
      2. 2.2.2 Power Supply Design
      3. 2.2.3 Wireless Network Design
      4. 2.2.4 CC1352 Software Design
        1. 2.2.4.1 Collector Node
        2. 2.2.4.2 Sensor Node
        3. 2.2.4.3 mmWave Sensor Configuration Command List Modification
    3. 2.3 Highlighted Products
      1. 2.3.1 IWR6843: Single-Chip 60- to 64-GHz mmWave Sensor
      2. 2.3.2 CC1352R: SimpleLink High-Performance Dual-Band Wireless MCU
      3. 2.3.3 IWR6843ISK and MMWAVEICBOOST: mmWave EVMs
      4. 2.3.4 LAUNCHXL-CC1352R1: SimpleLink™ Multi-Band CC1352R Wireless MCU LaunchPad™ Development Kit
  8. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Required Hardware and Software
      1. 3.1.1 Hardware Setup
      2. 3.1.2 Software Setup
        1. 3.1.2.1 Loading the CC1352 Firmware
        2. 3.1.2.2 Loading the IWR6843 Firmware
        3. 3.1.2.3 Starting the Firmware
        4. 3.1.2.4 Building the Firmware
        5. 3.1.2.5 Viewing Collector Data Output
        6. 3.1.2.6 Modifying the mmWave Configuration
    2. 3.2 Testing and Results
      1. 3.2.1 Test Setup
        1. 3.2.1.1 People Counting Setup
        2. 3.2.1.2 Power Consumption
        3. 3.2.1.3 Wireless RF Range
      2. 3.2.2 Test Results
        1. 3.2.2.1 People Counting Test Results
        2. 3.2.2.2 Power Characterization
        3. 3.2.2.3 Wireless RF Range Results
  9. 4Design Files
    1. 4.1 Schematics
    2. 4.2 Bill of Materials
    3. 4.3 PCB Layout Recommendations
    4. 4.4 Altium Project
    5. 4.5 Gerber Files
    6. 4.6 Assembly Drawings
  10. 5Software Files
  11. 6Related Documentation
  12. 7Trademarks
  13. 8About the Author
  14. 9Revision History

1 System Description

Industrial and building automation security systems can use radar to detect and track humans and other objects. In a security system, mmWave technology provides range, velocity, and angle information that is immune to environmental effects. The CC1352 wireless radio microcontroller provides extended long-range connection in spread-out areas to monitor and track activity with ultra-low power consumption.

Human monitoring has become an important area of exploration, due to its potential for understanding people’s count, activities, intents, and health issues. The ability to continuously and consistently monitor human motion is an important function in numerous applications, including surveillance, control, and analysis. Accuracy and precision play an important role in these applications. While sensors such as passive infra-red (PIR) and time of flight (TOF) are in use, they suffer from limitations in accuracy, false alarms, and environmental changes such as darkness, brightness, and smoke.

Radars allow an accurate measurement of distances, relative velocities of people, and other objects. They are relatively immune to environmental conditions such as the effects of rain, dust, or smoke. Additionally, they can work in complete darkness or in bright daylight. They are therefore useful for building automation applications such as people counting, motion detection, IP network cameras, and safety guards.

Sub-1 GHz wireless radio microcontrollers are becoming a popular choice for many applications worldwide. These devices work on the ISM spectrum bands below 1 GHz, typically in the 769 MHz to 935 MHz, 315 MHz, and the 468 MHz frequency range, and with the emerging IoT market moving into industrial applications, sub-1 GHz wireless radio communication is becoming the standard for these applications due to three main reasons: range, low power consumption, and interference to avoid problems associated with high traffic bands.

This design guide addresses component selection, design theory, and the testing results of this TI Design system. The scope of this design guide gives system designers a head-start in integrating TI’s mmWave sensor and SimpleLink™ multi-band wireless MCU.

The following subsections describe the various blocks within the TI Design system and what characteristics are most critical to best implement the corresponding function.