The number of cards issued by Youyou has exceeded 13 million, and it is widely used in Taiwan's Beishi Road bus, Yilan County-owned bus, Tonglian National Road Passenger Transport, Taiwan Railway Keelung-Zhonglong 19 stations, etc. However, you know how the leisure card in your hand can be effectively Deducting the amount of consumption? The leisure card readers are spread all over the place, up to the Mucha cat empty cable car, down to the underground of the Taiwan Railway, who came to check these card readers to ensure that they can operate accurately and successfully read?
Figure 1. General card appearance of a general leisure card
In fact, the leisure card is the communication technology that uses RFID as a contactless reading. The HF communication technology can provide a reading distance of about 10 cm. The communication is based on the international standard ISO 14443. The short-range reading requirement allows the cardholder to be in close contact with the card reader, and there is no need to worry about being repeatedly deducted by the adjacent reader without knowing it, and enjoys relatively high security. In order to ensure the quality of these near-field communication devices, to ensure that passengers use the leisure card, the leisure card can be quickly completed in different time, different locations, for different card readers, in order to achieve the above The quality requirements of the International Organization for Standardization (ISO), the ISO 10373 PCD (Proximity Coupling Device) / PICC (Proximity Card) near field communication test method, through this high-frequency performance test platform, It can verify the performance of the card and card reader. The test scope includes ISO 14443-6 ISO 14443 Air protocol shorter distance (less than 10cm) test and ISO10373-7 ISO 15693 Air protocol longer distance. (about 100cm) test.
Ticket card purchasing mechanism is more reliable
The ISO 10373 specification establishes a high-frequency performance verification platform that includes test antenna coils, magnetic field correction coil cards, analog Reader induction coils, and reference IC cards, as shown in Figure 2:
Figure 2. High-frequency tag verification platform based on ISO 10373
In order to measure the signal quality of near-field communication, the ISO 10373 high-frequency performance verification platform can be used to measure the size of the load modulation signal of the PICC (full name Proximity Card, Card), as shown in Figure 3. Knowing the performance of the tested cards, you can assist the industry (North City Youyou Card Company) to understand the performance quality of the cards provided by the manufacturer, so as to ensure the reading efficiency of the cards when they are used.
Figure 3. PICC functional test method
With a stable and high-yield ticket card, the cardholder can complete the scanning and payment of the ticket card at the speed of the traffic at the frequent traffic gates.
System operation equipment is more stable
Taiwan North City Youyou Card Company combines services with different industries, including bus operators, MRT, parking management, super-business, etc. As for how to ensure that the information on the leisure card can be successfully read by the card reader, how to Ensure that the PCD (Proximity Coupling Device, Reader) performance of each read point is in compliance with the standard? Through the standard Reference PICC, we can perform performance tests on the PCD's Field Strength (Figure 4) and Modulation Index and Waveform (Figure 5).
Figure 4. PCD functional test can measure the field strength of the card reader.
Figure 5. Modulation index and waveform measurement results of PCD
Since the equipments such as card readers of the North City Youyou Card Company are outsourced, the number of applications is extremely large in each application. Therefore, we must ensure the performance of the card reader and the sensing capability of the card. Avoid unreadable phenomena.
summary
The leisure card combines the traffic applications of important counties and cities in the northern part of Taiwan to provide convenience for the small amount of consumption, so that cardholders can carry and use it almost every day. However, it is necessary to have a good relationship with this consumption habit. With stable reading of cartoon roads and equipment, RFID testing and verification can give operators more confidence in choosing partners, and also encourage consumers to use their leisure cards more comfortably.
(Text / ITRI Identification and Security Technology Center. Zhang Boguang, Lin Xindeng)
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