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AND9670/D
IoT Development Kit (IDK)
IDK Smar tPassiveSensor_
RFID Shield
Quick Start Guide: Bring Up Test of
SPS_RFID Shield
INTRODUCTION
This document describes how to use the RFID shield on the IDK
Baseboard and shows the good reading range performance of the
RFID shield with the attached helical whip antenna
Software and Hardware Preparation
Software Requirement:
Windows PC with minimum 1 USB port, installed Java JRE/JDK
v.8u101 or higher, Operation system Windows 7, 8 or 10, mini USB
cable, Installed IDK IDE v3.6.5 or higher
Hardware Requirement:
•
IDK Baseboard with Power connection cable (IoT Baseboard to the
RFID shield)
•
DC Power Supply Adapter, Recommended SMI24−12−V−P6
RFID shield kit is provided with:
•
RFID Shield
•
1
/
Wave Whip Antenna for ETSI 866MHz
4
•
Header 1x 10; 2x 8;1x
•
Smart Passive Sensor™ (SPS) Tag Samples
© Semiconductor Components Industries, LLC, 2017
March, 2018 − Rev. 1
Figure 1. RFID Shield Mounted on the IDK Baseboard
APPLICATION NOTE
1
www.onsemi.com
RESET button
Publication Order Number:
AND9670/D
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Summary of Contents for ON Semiconductor AND9670/D
- Page 1 AND9670/D IoT Development Kit (IDK) IDK Smar tPassiveSensor_ RFID Shield Quick Start Guide: Bring Up Test of www.onsemi.com SPS_RFID Shield APPLICATION NOTE INTRODUCTION This document describes how to use the RFID shield on the IDK Baseboard and shows the good reading range performance of the...
- Page 2 Smart Passive Sensor ON Semiconductor’s Smart Passive Sensors (SPS) are UHF RFUD wireless sensors that allow the passive sensing of fluid level, temperature and mosisture values from the respective tags. The tag digitizes sensed information which can be read by a standard UHF RFID Gen 2 compliant reader.
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Page 3: Getting Started
AND9670/D UHF RFID Band EPC Gen 2 RFID tags work in the frequency band from 869 MHz to 950 MHz which covers the main frequency sub−bands used in different geographical regions. The IDK RFID sample program implemented 4 sub−bands covering 4 regions •... - Page 4 AND9670/D • Code structure of the example appears on left window under Project Explorer, named AS3993_RFID. It usually happens there is a small red cross visible close to the name of the project. This is due to indexing that has to be rebuilt.
- Page 5 AND9670/D Figure 5. • Once the RESET button on the IoT Baseboard is pushed, the flash programming starts as illustrated in the console window below Figure 6. Now you can start to run the RFID application in the console window by adding a sample tag near the antenna and pressing the RESET button on the IDK Baseboard.
- Page 6 AND9670/D RFID READER READING RANGE AREA The maximum distance or the reading area of the RFID shield to the tag position depends on the reader antenna type and the tag orientation itself regards to the reader antenna position. Due to different environment conditions, like the reflection of the nearby objects causing multipath interference as well as influence of the human body holding the tag in the proximity of the reader antenna, the maximum read range can vary and cannot be precisely predicted in advance.
- Page 7 AND9670/D The second generally used antenna mounting position is in vertical plane, in following referred as V−plane, whereby the whip antenna is pointing to the ceiling and perpendicular to the shield and ground plane. To mount the whip antenna vertically on the RFID shield, an additional right angle adaptor [4] has been used as shown in picture below.
- Page 8 AND9670/D RFID Reader Antenna in H−Plane The Figure 10 illustrates the RFID shield reading area with the attached whip antenna and measured in an ordinary environment. The baseboard with the RFID shield is placed on the desk with the hight of table to ground about 78 cm and the tag is placed in the horizontal polarized position whereby the height of antenna to the tag at reference position is 7 cm.
- Page 9 AND9670/D RFID Reader Antenna in V−Plane The picture below shows the optimum tag reading area with the vertical mounted whip antenna. The first blue area the tag is positioned in the horizontal plane that means orthogonal to the vertical mounted whip antenne, the second reading area in red, the tag is in the vertical position as the mounted whip antenna.
- Page 10 AND9670/D Left Hand Circular Polarized Antenna The following tag reading measurement is performed with the antenna[5] provided with the SensorRFA−GEVB[2]. The reading distance about 135 cm can be achieved, in front of the antenna with the tag in the horizontal plane as shown in the picture below.
- Page 11 AND9670/D • Go to the IDK installation path, in this example the IDK installation directory is C:\OnSemiconductor • Go to the folder C:\OnSemiconductor\samples\AS3993_RFID and copy two files AS3993_RFID.cpp and AS3993_RFID.h into your working directory within the workspace and rename the files in order not to confuse with the pre−compiled library, in this example renamed to: myAS3993_RFID.cpp and myAS3993_RFID.h...
- Page 12 AND9670/D RFID SHIELD BOARD TEMPERATURE MEASUREMENT Measurement Setup: • RFID Shield Rev2.0 on IDK Baseboard • FLIR A655sc IR camera with software Flir ResearchIR Max Emissivity = 0.95 ♦ Refl. Temperature = 24 °C ♦ • HP 34401A Multimeter for Power Supply Current Measurement •...
- Page 13 FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized...