Applied Wireless Identifications Group M26EA RFID Reader 2.6e Module User Manual
Applied Wireless Identifications Group Inc. RFID Reader 2.6e Module Users Manual
Users Manual
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| Document ID | 676091 |
| Application ID | 08wRx4jAV5vdfMIgt3FN9w== |
| Document Description | Users Manual |
| Short Term Confidential | No |
| Permanent Confidential | No |
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| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 17.51kB (218922 bits) |
| Date Submitted | 2006-06-30 00:00:00 |
| Date Available | 2006-06-30 00:00:00 |
| Creation Date | 2006-06-28 11:01:08 |
| Producing Software | PDFXC Library (version 2.5). |
| Document Lastmod | 0000-00-00 00:00:00 |
| Document Title | Users Manual |
2.6 EA -1- Doc# 041320 SENTINEL-SENSE 2.6 EA Installation & Operation Manual-041320 AWID PROPRIETARY 2.6 EA -2- Doc# 041320 COPYRIGHT ACKNOWLEDGEMENTS The contents of this document are the property of Applied Wireless Identifications Group, Inc. (AWID) and are copyrighted. All rights reserved. Any reproduction, in whole or in part, is strictly prohibited. For additional copies of this document please contact: AWID 18300 Sutter Blvd Morgan Hill, CA 95037 www.sales-ast@AWID.com The information contained herein has been carefully checked and is believed to be accurate, no responsibility is assumed for inaccuracies. AWID reserves the right to make changes without prior notice. This document is not covered by any warranty either expressed or implied. Any comments, corrections or additions to the contents of this document should be directed to AWID at the above address. Copyright 2006 AWID, Printed in USA. All other trademarks are the property of their respective owners. FCC COMPLIANCE This equipment has been tested and found to be in compliance with the limits for FCC Part 15, Class A digital device. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with instruction manual, may cause harmful interference with radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. The users are prohibited from making any change or modification to this product, any modification to this product shall voids the user s authority to operate under FCC Part 15 Subpart A Section 15.21 regulations. 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. INDUSTRY C ANADA COMPLIANCE Operation is subject to the following two conditions: (1) this device may not cause interference and (2) this device must accept any interference, including interference that may cause undesired operation of the device. AWID PROPRIETARY 2.6 EA -3- Doc# 041320 C AUTION: Reader should be positioned so that personnel in the area for prolonged periods may safely remain at least 23 cm (9 in) in an uncontrolled environment from the reader s surface. Observe FCC OET Bulletin 56 Hazards of radio frequency and electromagnetic fields and Bulletin 65 Human exposure to radio frequency electromagnetic fields. AWID PROPRIETARY 2.6 EA -4- Doc# 041320 Table of Contents INTRODUCTION.......................................................................................................5 1.1 1.2 SPECIFICATIONS ....................................................................................................8 2.1 2.2 2.3 Channel Frequency Table..................................................................................8 Input and Output Interfaces & Connector Pin Assignment .................................8 Measuring Read Distance..................................................................................9 INSTALLATION & OPERATION GUIDELINES .....................................................10 3.1 3.2 General Description & Theory of Operation .......................................................5 Special Features ................................................................................................7 General Wiring Requirements..........................................................................10 Wiring Diagrams ..............................................................................................10 INSTALLATION PROCEDURE ..............................................................................11 4.1 Parts List..........................................................................................................11 4.2 Preparation for Installation ...............................................................................11 4.2.1 Bench Top Verification..............................................................................11 SOFTWARE PROGRAMMING AND SYSTEM OPERATION NOTES...................12 5.1 System Operation ............................................................................................12 5.1.1 Running a Custom Software Application or the AWID Demo Program.....12 5.1.2 Operating Modes ......................................................................................12 5.2 Users Note .......................................................................................................12 MPR SERIAL COMMUNICATION PROTOCOL.....................................................13 NOTE: READ AND USE THIS MANUAL. NOTE: FAILURE TO FOLLOW THE INSTALLATION GUIDE MAY RESULT IN POOR PERFORMANCE OR EVEN CAUSE PERMANENT DAMAGE TO THE READER, THUS VOIDS THE PRODUCT WARRANTY. AWID PROPRIETARY 2.6 EA -5- Doc# 041320 INTRODUCTION AWID's Sentinel-Sense 2.6 EA is a long-range (12 to 15 feet) Radio Frequency IDentification (RFID) reader module with RS-232 I/O interface that works with most leading passive UHF passive tags. The reader module comes with a unique combination of long read range, small size, and low power consumption. The reader module has an internal power converter, allowing it to work with a wide range of supply inputs without affecting its performance. Its primary applications are asset management and tracking, and fleet management applications. The 2.6 EA reader modules are delivered with firmware version 2.xxM In order to operate an 2.6 EA you will need the following: PC running Windows1 98 or higher, CD-ROM drive and one RS-232 serial port. Host software (AWID s demo software or your own custom software) 1.1 GENERAL DESCRIPTION & THEORY OF OPERATION This reader module uses radio frequency to identify, locate and track pallets and/or items that carry the appropriate RFID transponders. It works in non-line-of-sight situations and in darkness, bright sun-light, or through dirt, grime and smudges. A typical RFID system consists of three components a reader (interrogator), a transponder (card or tag), and a data processing controller. The reader consists of a module such as 2.6 EA (that has an internal micro-controller section, a transmitter section, a receiver section) and a circular polarized transmit/receive antenna. Passive transponders (tags or labels) consist of an antenna and an RFID ASIC (Application Specific Integrated Circuits). During operation, the transmitter sends out an electromagnetic wave to establish a zone of surveillance. When a transponder enters this zone, the electromagnetic energy from the reader begins to energize the IC in the transponder. Once the IC is energized, it goes through an initialization process and is ready to accept further commands. Upon receiving a command that queries its identity, the RFID ASIC begins to broadcast its identity through a low-energy back-scattering process, which selectively reflects or back-scatters the electromagnetic energy to the interrogator. The receiving circuits in the reader sense and decode this back-scattered signal and determine the identity of the transponder. Passive tags are beam powered , which is the electromagnetic energy radiated by the transmitter section of the reader. Upon receiving a legitimated command, the tags will cause the matching of the tags antenna to vary from match to mismatch, thereby causing the tags to either absorb the RF energy or to reflect the RF energy. This absorption or reflection sequence is commanded by the tags internal memory and this is how the tags internal data are conveyed to the reader. The reader in turn monitors · Though 2.6 EA can also be controlled from a non-Windows programming platform, AWID demo and FW upgrade programs are applications to run in Windows. AWID PROPRIETARY 2.6 EA -6- Doc# 041320 the perturbation of the RF energy field, and thereby receives the varying degree of signal reflected from the tags. One of the unique design features for an RFID reader is that it must simultaneously transmit a strong CW signal and at the same time, receive a weak reflected signal with little frequency separation. In a traditional design, such functions are implemented through the use of a circulator. As shown in Figure 1, there is a 3-port device between the Coupler and the band pass filter, which is called a circulator. A circulator is physically constructed by a permanent magnet, a Y junction on a high-dielectric ferromagnetic substrate, and a ferromagnetic enclosure to complete the flux field. A circulator permits flow of RF energy in one direction only, e.g. from port 1 to 2, 2 to 3, and 3 to 1. When one of the ports is terminated (matched condition), the other two are isolated in the reverse direction. Many fixed-site RFID readers use circulators to ensure that the power amplifier output flows from the amplifier (port 1) to the antenna (port 2), and the received signal flows from the antenna (port 2) to the receiver (port 3). When properly matched, a circulator can provide typically 15 to 18 dB of isolation between the power amplifier output (port 1) and the receiver input (port 3), thereby reducing any inband interference from transmitter output to receiver input. AWID s reader consisting of 2.6 EA uses a similar circuit to accomplish the same function, but in a much smaller physical size. XMTR Driver AMP FREQUENCY Power AMP COUPLER CIRCULATOR BPF XMIT/ RCVE SYNTHESIZER FREQ AMPL I/O CPU 1.1.3 A/D RCV IQ RF I/Q Q DEMOD 1.1.4 Figure 1 Block Diagram, Single-Antenna RFID Reader It should be noted that some fixed-site reader designs use separate transmit and receive antennas to resolve this T/R signal isolation problem. Figure 2 is a block diagram of a dual-antenna RFID reader. On the surface, this design has the advantage of allowing a low-level design on the receive chain, which means lower compression point for mixers, lower saturation point for amplifiers, and the possibility of using a front-end amplifier to enhance receiver sensitivity. Such dual-antenna design becomes problematic in a mobile environment, where signal strength is not easily controlled. A well-designed dualantenna reader can usually provide 25 to 30 dB of isolation between the two signal AWID PROPRIETARY 2.6 EA -7- Doc# 041320 paths, reducing the unwanted signal in the receive chain to 20 dBm. However, when the RFID reader antenna is facing a tag placed on a large metallic object at a distance of 12 inches, the reflected transmitter signal at the receiver input can be as high as 13dBm, thereby eliminating any advantage of the dual-antenna design. In actual circuit implementation, AWID developed a proprietary circuit to duplicate the functions of the circulator, with improved directivity and isolation. XMTR Driver AMP Power COUPLER AMP BPF XMIT FREQUENCY SYNTHESIZER FREQ AMPL CPU I/O RCVR A/D IQ BPF RCVE I/Q DEMOD RF Figure 2 Block Diagram, Dual-Antenna RFID Reader 1.2 SPECIAL FEATURES · Multi-Protocol: ISO-18000-6 Type B, EPC Class 12 Gen 1 & 2, EM Micro, EPC Class 03, EPC V1.19 Rev.2 · Thin passive tags with long-range performance · RS-232 outputs · Both 64- and 96-bit Both 64- and 96-bit AWID PROPRIETARY 2.6 EA -8- Doc# 041320 SPECIFICATIONS Input voltage Input current Protocol language +7.0 VDC to +15 VDC 1.0 A (7.0 V) to 0.40 A (15 V) typical ISO Type B, EPC Class 1 Gen 1 & 2, EM Micro, EPC Class 0, EPC V1.19 Rev.2 Depends on type & size of labels used +30 dBm max 903.14-927.26 MHz 903.14-927.26 MHz (Amplitude Modulated) 50 Channels 500 kHz Pseudo random -30° C to +65° C (-22° F to 149° F) RS-232 DB-9 connector x5 x0.25 Read range Output power Transmit frequency Receiver frequency Hopping channels Channel spacing Hopping sequence Operating temperature range Output data formats I/O Connector Dimension 2.1 CHANNEL FREQUENCY TABLE Frequency range: 903.14 ~ 927.26 MHz Minimum number of frequency channels: 50 CH 10 12 14 16 18 902~928 903.14 903.63 904.12 904.62 905.11 905.60 906.09 906.58 907.08 907.57 MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz CH 20 22 24 26 28 30 32 34 36 38 902~928 908.06 908.55 909.05 909.54 910.03 910.52 911.02 911.51 912.00 912.49 MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz CH 40 42 44 46 48 50 52 54 56 58 902~928 912.98 913.48 913.97 914.46 914.95 915.45 915.94 916.43 916.92 917.42 MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz CH 60 62 64 66 68 70 72 74 76 78 902~928 917.91 918.40 918.89 919.38 919.88 920.37 920.86 921.35 921.85 922.34 MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz CH 80 82 84 86 88 90 92 94 96 98 902~928 922.83 923.32 923.82 924.31 924.80 925.29 925.78 926.28 926.77 927.26 Table 1 Channel Frequency Table for 2.6 EA 2.2 INPUT AND OUTPUT INTERFACES & CONNECTOR PIN ASSIGNMENT AWID PROPRIETARY MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz 2.6 EA -9- Doc# 041320 Pin Function Pin Function Ground RS232 Tx RS232 Rx Enable RFID Ground 10 +7V/+15V +7V/+15V Data 0 Data 1 Ext Data in 2.3 MEASURING READ DISTANCE Make sure you know the tag types. For certain readers and tags, user must also be mindful of the tag s orientation and the reader s antenna orientation, what mounting surface the tags are designed for and how the tags are supposed to be mounted. Any departure from its intended purpose will drastically affect the reader s ability to energize the tag and its read range. When measuring the reader s read range, make sure that the tag is properly oriented to the reader antenna, and for optimum performance, be sure the operator s finger is not within three (3) inches of the tag s antenna surface. AWID PROPRIETARY 2.6 EA 3.1 - 10 - Doc# 041320 INSTALLATION & OPERATION GUIDELINES GENERAL WIRING REQUIREMENTS All the MPR reader wiring should be continuously shielded. AWID recommends using #24 AWG up to #22 AWG, longer distances and higher current consumption on the power supply line will require larger gauge wires. TABLE 3.4-1: Data Line s Wiring Requirement WIRE SIZE RS-232 3.2 #22 AWG (0.6 mm Dia.) 50 ft (15 meters) #24 AWG (0.5 mm Dia.) 50 ft (15 meters) WIRING DIAGRAMS See section 2.1 for pin assignment for the RS-232 connector of a 2.6 EA. The MPR RS-232 interface is a short distance serial interface, a full command set for the standard serial interface is not necessary, therefore only transmit, receive and ground wires are used. Sense input is an enable input, which is traditionally used to activate the RF energy of the reader and to start the read functions. AWID PROPRIETARY 2.6 EA - 11 - Doc# 041320 INSTALLATION PROCEDURE This section provides installation and operation information for 2.6 EA reader modules. 4.1 PARTS LIST Verify that all items listed below are present before starting the installation. o Sentinel-Sense 2.6 EA o Documentation and command demo program CD 4.2 Qty=1 Qty=1 PREPARATION FOR INSTALLATION Familiarize yourself with the connectors and pin out assignment of each I/O connectors. 4.2.1 Bench Top Verification It is always a good idea to verify system operation before committing to a full-scale installation. The following are the necessary steps to test the reader s operation in a static environment. Connect 2.6 EA to the RS-232 port of a PC Connect the power jack from the wall plug power supply to reader module Power up PC Install demo software on PC Activate demo software and verify performance of the reader. Select COM port 1 on top page then click Connect . Follow with some system commands. AWID PROPRIETARY 2.6 EA 5.1 - 12 - Doc# 041320 SOFTWARE PROGRAMMING AND SYSTEM OPERATION NOTES SYSTEM OPERATION 5.1.1 Running a Custom Software Application or the AWID Demo Program If AWID Demo Program is not used, it is expected user will launch a Custom Software Application developed using the MPR Serial Communication Protocol to issue commands to the MPR reader/module as specified. 5.1.2 Operating Modes Typical operating modes for MPR readers can be grouped into the following modes: Search Mode This mode is used when operator or user is not certain what family of tags is placed on the items to be tracked. Since most tags are deterministic in nature, MPR reader must cycle through each and every protocol, issue a protocol specific inquiry, to hail and to wait for a response from tags of that specific protocol. Therefore, if there are many different protocols, for an untrained observer, the reader response will appear sluggish. Mixed Mode This mode assumes the user is aware of the types of protocol in use, and furthermore, the user made a determined effort to operate the reader in a mixed protocol mode. In this mode, the user can decide how many and which specific protocols to be selected. Once Mix Protocol Mode is selected, the reader will routinely cycle through each protocol, dwell long enough for the reader to wait for a response and then move on to the next protocol. It should be noted that in a mixed protocol mode, the tag must have sufficient time to respond to the reader, and therefore, it can only be used on a conveyor belt arrangement, with specific speed restrictions. Single Protocol Mode Single protocol is the normal mode of operation, where the protocol type is known and many tags are expected to pass through the readers. 5.2 USERS NOTE For System Integrators and/or Software Developers System Integrators and/or software developers should get familiar with the MPR Serial Communication Protocol specifications for developing applications that control a 2.6 EA. For Custom System Users For custom system user, please refer to your host software user guide for information regarding system and software operations For Demo Software Users AWID PROPRIETARY 2.6 EA - 13 - Doc# 041320 If you are using the AWID RFID demonstration software application which is .NET based with easy-to-follow GUI operations, simply select the COM port for which the 2.6 EA is configured then click Connect should get you started. MPR SERIAL COMMUNICATION PROTOCOL See MPR Serial Communication Protocol Manual - 041304 AWID PROPRIETARY
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