TransCore Amtech IT2200, Инструкция по установке, обслуживанию и ремонту

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IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide
2-4
Figure 2-1 Typical RFID Components for a Bistatic (Two-Antenna)
Configuration
The core RFID system components are described in the following sections.
Reader
Readers provide an operational link between tagged objects and host information
management systems. The reader receives a demodulated signal from the RF module,
decodes the identification information, validates the identification code, and transmits
the code along with any appended information to the host computer system. The
reader also controls the RF module, sending it a command to generate the RF signal.
The reader’s basic operation is to
•
Direct the RF module to transmit RF.
•
Receive the encoded signal from the tag through the RF module.
•
Decode the tag’s ID code.
•
Validate the ID code.
•
Transmit the ID along with any other data from the tag to the host computer
system.
•
Send single or multiple requests to the tag to return data or write to tag memory.
The reader may also have other functions, including accepting data from other input
devices, such as the vehicle detector, and controlling the toll lane gate and signal
lights.