GB/T 33739-2017 in English
VALIDTest methods for radio frequency interface of contactless reader based on 13.56 MHz and 2.45 GHz dual-frequency technology
- Issued on:2017-05-12
- Implemented on:2017-12-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$253.00
《GB/T 33739-2017基于13.56MHz和2.45GHz双频技术的非接触式读写器射频接口测试方法》由TC485（全国通信标准化技术委员会）归口，主管部门为工业和信息化部（通信）。
Introduction
In-depth interpretation of the RF interface test method of dual-frequency readers
1. Background of standard formulation and analysis of technological evolution
With the rapid development of contactless payment technology, readers based on 13.56MHz and 2.45GHz dual-frequency technology have been widely used in mobile payment, smart cards and other fields. This standard aims to standardize the RF interface test method of dual-frequency readers to ensure their compatibility and reliability.
2. Test Environment
2.1 Test Environment
- Temperature: +15°C ~ +35°C
- Relative Humidity: 20% ~ 55%
- Atmospheric Pressure: 86 kPa ~ 106 kPa
2.2 Test System Structure
The test system consists of the dual-frequency reader/writer under test, the test mobile phone (with built-in smart card), the test platform and the test software. Figure 1 shows the overall architecture of the test system.
3. Test Equipment
| Test Hardware Name | Configuration Description |
|---|---|
| Oscilloscope | Bandwidth: 1GHz, Sampling Rate: 5GSa/s |
| Differential Amplifier | Gain: 100dB; Bandwidth: 100kHz; Positive: AC (alternating current); Negative: GND. |
| Test Phone | Test equipment that supports 13.56MHz or 2.45GHz smart cards. |
| Test platform | Support serial interface. |
3.2 Test software
| Test software name | Function description |
|---|---|
| Dual-frequency reader test software | Support the sending, receiving and correctness judgment of echo test instructions. |
4. Test Items
4.1 Basic Function Test
| Test Number | Test Item | Test Purpose |
|---|---|---|
| 6.1.1 | 13.56MHz Card Swipe Function Test | Verify whether the card swiping function of the 13.56MHz interface of the dual-frequency reader is normal. |
| 6.1.2 | 2.45GHz card swiping function test | Verify whether the card swiping function of the 2.45GHz interface of the dual-frequency reader is normal. |
4.2 Communication protocol test
The communication protocol test of the 13.56MHz and 2.45GHz interfaces of the dual-frequency reader refers to YD/T 3145-2016 and GB/T33740 respectively.
Implementation suggestions
- It is recommended to strictly control the environment in accordance with the standard requirements in the actual test to ensure that the temperature, humidity and atmospheric pressure meet the specifications.
- It is recommended to use a high-precision oscilloscope and differential amplifier to ensure the accuracy of the magnetic field strength test.
- In the anti-interference test, the location and power of the wireless signal interference source should be planned in advance to ensure the validity of the test results.
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