Wireless communication system using imitation near field communication and authentication method thereof

Abstract

A wireless communication system that uses simulated near field communication and its authentication method. The wireless communication system is installed in peripheral application equipment and is used to connect with mobile devices. The wireless communication module of the wireless communication system is used to send control instructions. The radio frequency switch circuit of the wireless communication system switches to a low power mode or a normal power mode according to the control command. The radio frequency switch circuit includes a signal attenuation unit for attenuating the signal emitted by the wireless communication module in the low power mode. The frequency of the transmission signal is used to generate the output signal, and the frequency of the transmission signal is maintained in the normal power mode. The wireless communication system of the present invention can attenuate the signal frequency during the authentication stage to achieve the purpose of near field communication. After authentication, the original wireless transmission mechanism can be used to execute the operation of peripheral application equipment.

Description

technical field [0001] The present invention relates to a wireless communication technology, in particular to a wireless communication system and an authentication method using simulated near field communication for performing device authentication. Background technique [0002] With the popularity of mobile devices, more and more peripheral applications (Peripheral Applications) are developed around mobile devices, and the use of high compatibility of low-power wireless communication mechanisms, such as Bluetooth, makes mobile devices do not need additional devices to communicate with peripheral applications. For example, wearable devices and smart home appliances mostly have built-in Bluetooth Low Energy (BLE) modules for users to directly control. This not only improves the convenience of use, but also The cost of hardware equipment can be reduced. [0003] When the mobile device uses the Bluetooth low energy module to control these peripheral applications, most of them ...

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Problems solved by technology

[0004] Since the two devices need to be close to each other to a certain distance to complete the authentication during near-field communication, the security is more secure than the pairing of the general wireless communication mechanism. However, the transmission frequency of near-field communication is low, and the induction coil required is relatively small. If it is integrated with other systems, it will take up part of the space, which does not meet the needs of modern electronic products; in addition, the chip of the NFC reader needs to be equipped with a corresponding supporting operating system to operate, so it is also Narrowed down the scope of application

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