vTrig_CTPA0 Evaluation Kit
Hardware spec and User Manual
Revision 1.2
Walabot60ghz Evaluation Kit Hardware spec
Vayyar Confidential
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Vayyar Imaging Ltd.
Web: https://vayyar.com
Notice
Copyright 2019 Vayyar Imaging Ltd. All rights reserved.
This document is the property of Vayyar and all materials and information contained herein are the confidential and proprietary
information of Vayyar and are protected by international copyright laws. The copyrights are owned by Vayyar or the original creator of the
material. The materials and information contained herein are provided to you for internal information purposes only, and no portion of
the materials and information herein may be copied, reproduced, distributed, transmitted, displayed, published, broadcasted or used in
any way whatsoever directly or indirectly without the prior written consent of Vayyar or in any case of third party materials, without that
third party's consent. This document shall be returned to Vayyar promptly upon request.
The materials and information contained herein are provided "AS IS" and Vayyar does not provide any warranties of any kind, whether
express or implied, including but not limited to implied warranties of merchantability, fitness for a particular purpose, and noninfringement
Revision History
Revision
Date
Author
Description
1
August 2019
1.1
September 2019
1.2
September 2019
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Table of Contents
CHAPTER 1 INTRODUCTION ..................................................................................................... 6
1.1 Release Information ................................................................................................................ 6
1.2 Glossary ................................................................................................................................... 6
CHAPTER 2 SYSTEM OVERVIEW ................................................................................................ 7
2.1 System Architecture ................................................................................................................ 7
2.2 Hardware ................................................................................................................................ 8
2.2.1 Sensor Unit Specification ................................................................................................ 9
2.2.2 Digital Interface ............................................................................................................. 10
2.2.3 RF Interface - Antennas ................................................................................................. 11
2.2.4 Electrical Specifications ................................................................................................. 11
2.2.5 Antenna and RF Characteristics .................................................................................... 12
2.3 Software ................................................................................................................................ 13
CHAPTER 3 OUTPUTS ............................................................................................................. 14
3.1 Web GUI ................................................................................................................................ 14
3.2 API ......................................................................................................................................... 15
CHAPTER 4 REGULATORY SECTION ......................................................................................... 16
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List of Figures
Figure 1: VTrig_CTPA0 System Architecture ........................................................................................... 7
Figure 2: High-Level Block Diagram ........................................................................................................ 8
Figure 3: VTrig_CTPA0 Connectivity...................................................................................................... 10
Figure 4: Antenna Positions and Numbering ........................................................................................ 11
Figure 5: VTrig_CTPA0 Antenna Pattern ............................................................................................... 12
Figure 6: Processing Flow ...................................................................................................................... 13
Figure 7: Heatmap and Heatmap (Raw)................................................................................................ 14
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List of Tables
Table 1: Glossary ..................................................................................................................................... 6
Table 2: Sensor Unit Specification .......................................................................................................... 9
Table 3: Sensor Unit Electrical Specification ......................................................................................... 11
Table 4: Antenna and RF Characteristics .............................................................................................. 12
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Chapter 1
Introduction
This guide provides information on the installation and operation of the Vayyar vTrig-CTPA0
Evaluation Kit. VTrig_CTPA0 is a three-dimensional mm-wave sensor used as a fixed field disturbance
sensor or short-range device for interactive motion sensing. The device is installed on a wall or ceiling,
and detects objects in a defined arena and displays a real-time image of their positions within the
arena.
Typical applications for the device can be touchless input device (e.g. gesture-recognition interface),
in-room people detection and monitoring for improving comfort and energy-utilization optimization
(e.g. HVAC operation and airflow optimization), detection of abnormal conditions such as fall of elderly
people and apnea in adults and babies, and in-cabin monitoring for detection of infants left in car.
1.1 Release Information
This is a first Hardware version for demonstration of system capabilities. Both algorithmic
capabilities and features are under continuous development and improvement.
This document provides basic description of the system and it is operated. For more details – contact
Vayyar LTD through – www.vayyar.com.
1.2 Glossary
Table 1: Glossary
Term
Definition
AC
Alternating Current
API
Application Programming Interface
DC
Direct Current
DLL
Dynamic Link Library
EVK
Evaluation Kit
GUI
Graphical User Interface
IP
Internet Protocol. An IP address is a numerical identifier assigned to a computing device or
node in a TCP/IP network. The address is used to locate and identify the node in
communications with other nodes on the network.
MCU
Micro-Controller Unit
PCB
Printed Circuit Board
RF
Radio Frequency
SoC
System-on-chip
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Chapter 2
System Overview
The VTrig_CTPA0 system is designed to demonstrate Vayyar's 3D imaging non-contact RF sensors,
which enable to identify multiple objects (“blobs”) in a defined space (“arena”).
2.1 System Architecture
The VTrig_CTPA0 system architecture and connectivity scheme is illustrated in the figure below.
Figure 1: VTrig_CTPA0 System Architecture
The VTrig_CTPA0 system is comprised of the following components:
The VTrig_CTPA0 RF Sensor Unit.
The EVK Engine. Host software that performs signal processing functions. The software
runs in a command window in a PC, which is connected to the VTrig_CTPA0 Sensor via a
USB cable.
Web GUI. User-interface client software that communicates with the EVK Engine via a
TCP/IP connection. The Web GUI client is supported by the following browsers:
Google Chrome
Mozilla Firefox
API Client. Optional, customer-developed software that communicates with the EVK
Engine via a TCP/IP connection.
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NOTE
The Web GUI and API Client software can run either on their own dedicated PC, or on the same PC as the EVK
Engine.
2.2 Hardware
The figure below presents a high-level block diagram of the PCB that houses the EVK sensor unit:
Figure 2: High-Level Block Diagram
The following components are embedded in the sensor unit PCB:
Vayyar VYYR7201-A0 system-on-chip (SoC).
40 embedded Tx/Rx linear polarized PCB embedded, wide-band antennas.
A digital interface that communicates with a host PC via a USB-2.0 connection. The
interface is implemented using on-board Cypress micro-controller unit (MCU).
A Crystal used as a clocking source for the Cypress MCU.
A TCXO (Temperature Compensated Crystal Oscillator) used as a clocking source for the
VYYR7201-A0 SoC.
Power supply system supporting 3.3V, 2.5V, 1.27V and 1.2V DC/DC converters.
Non Volatile Memory (NVM) used to store inventory and calibration information.
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2.2.1 Sensor Unit Specification
Table 2: Sensor Unit Specification
Parameter
Specification
Notes
Transceivers
40 Tx/Rx
Frequency Band
Within 57-64GHz
Configurable per few settings, for more
details contact support
Field of View (FoV)
Refer to section 2.2.5 Antenna and RF
Characteristics
Range Resolution
Depends on the configured BW
Range Accuracy
< < Range Resolution
Depends on the target strength and shape
Angular Resolution
λ – Wavelength [@64GHz]
D – Length of the array [0.04m]
Angular Accuracy
<< Angular Resolution
Depends on the target strength and shape
Dimensions
Without case: 80 mm x 80 mm
With case: 105 mm x 85 mm
Dimensions refer to VTrig_CTPA0 board,
that support lots of Vayyar internal debug
options and are not indicative to a final
product size
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2.2.2 Digital Interface
The digital interface connects the host PC with the EVK board. The interface is implemented on the
EVK board using an MCU and a micro-USB connector.
Micro-Controller Unit (MCU)
Cypress’s EZ-USB FX3™ MCU integrates the USB 2.0 physical layers (PHYs), and contains a 32-bit
ARM926EJ-S microprocessor for building custom USB SuperSpeed applications. The integrated
processor contains a unit called General Programmable Interface (GPIF), which provides easy
connectivity to popular interfaces.
USB Connector
The onboard micro-USB-B 2.0 connector is used for power supply and for data transfer between the
sensor unit and the host PC. The connector supports the USB 2.0 protocol in High-Speed Mode (480
Mbps).
Figure 3: VTrig_CTPA0 Connectivity
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2.2.3 RF Interface - Antennas
The array of 40 antennas serves to connect the sensor unit with the environment. The antennas are
embedded in the PCB, as depicted in the figure below.
Figure 4: Antenna Positions and Numbering
For each transmitting (TX) antenna, there are multiple receiving (RX) antennas for collecting and
recording the received RF signals. Each RX antenna and its associated TX antenna serve as an
antenna pair.
2.2.4 Electrical Specifications
The following electrical specifications are for the sensor unit. The current consumption specifications
are based on lab measurements performed by Vayyar.
Table 3: Sensor Unit Electrical Specification
Parameter
Value
Vcc supply voltage
5 VDC
Max current consumption
~1.3 A
Average current consumption
~1 A
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2.2.5 Antenna and RF Characteristics
The following are antenna and RF characteristics, based on the simulation of a single antenna over
an infinite ground plane:
Table 4: Antenna and RF Characteristics
Parameter
Value
Comment
Gain
5 dBi @62 GHz
At 0˚ Elevation, 0˚ Azimuth
Antenna -5dB beamwidth
160 deg. @62 GHz (E-plane)
120 deg. @62 GHz (H-plane)
Polarization
Linear
Max Tx Power
0 dBm
On chip output
The figure below depicts an antenna and its E and H planes:
E-plane – plane XZ (green)
H-plane – plane YZ (red)
Figure 5: VTrig_CTPA0 Antenna Pattern
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2.3 Software
The VTrig_CTPA0 system software performs signal processing and generation of the arena image.
The Graphical User Interface (GUI) provides images and blobs corresponding to the detected objects
in the arena.
NOTE
The Graphical User Interface supports use of a single sensor only.
The software enables you to save the system data at multiple levels in files for further processing:
Raw data
Image data (3D/2D)
The following diagram describes the processing flow of the software.
Figure 6: Processing Flow
Signal
transmission
Signal received
and recorded
Image
reconstruction
Post-
processing
Data
presentation
Data save to
files (optional)
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Chapter 3
Outputs
Outputs from the sensor can be presented either through Web GUI or API. The data can be saved as
MAT files and post-processed or analyzed in parallel to the saving.
The output data is available as a raw data or as a 3D/2D image data.
3.1 Web GUI
User-interface client software that communicates with the EVK Engine via a TCP/IP connection.
Heatmap (on the left presentation window in the figure below) shows the power reflected from
each object in the arena.
Heatmap (Raw) is the same presentation pixelated (on the right presentation window).
Figure 7: Heatmap and Heatmap (Raw)
Other image formats include 3D\2D point cloud, people tracking and posture recognition, breathing
monitoring and others.
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3.2 API
The Vayyar Application Programming Interface (API) provides programmatic access to the Vayyar
EVK Engine, allowing for integration of Vayyar’s non-contact RF sensors into customer-developed
systems.
The outputs (raw data or the 3D/2D Image data) can be received by API in parallel or instead of the
Web GUI.
Some of the outputs available through API:
‘rawImage_XYZ’ – 3D image matrix
‘rawImage_XY’ – 2D image matrix (averaged over the Z axis)
‘rawImage_XZ’ – 2D image (averaged over the Y axis)
‘rawImage_YZ’ – 2D image (averaged over the X axis)
‘I’ – The ‘I’ segment of the raw I/Q data
‘Q’ – The ‘Q’ segment of the raw I/Q data
‘pairs’ – Transmit/receive antenna pairs of the I/Q data
‘freqs’ – Recorded frequencies of the I/Q data
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Chapter 4
Regulatory section
The device is certified under FCC part 15 section 15.255, as - FCC-ID : 2AHIS-V60G.
This V60G device has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected. Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications not expressly approved by the party responsible for compliance could void
the user's authority to operate the equipment.
To maintain compliance with FCC’s RF Exposure guidelines, this equipment should operated with a
minimum distance of 20cm between the radiator and a human body.
The device shall not be used on an airplane while airborne.
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.
END OF DOCUMENT
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