Communication device, communication system and communication method for achieving communication through contact

Abstract

The invention discloses a communication device, communication system and communication method for achieving communication through contact. The communication device for achieving the communication through the contact comprises a microcontroller, a contact sensing device connected with the microcontroller, a weak mechanical vibration signal module and a communication module. The microcontroller is used for controlling the contact sensing device, the weak mechanical vibration signal module and the communication module to complete corresponding functions; the contact sensing device is used for sensing whether the communication device is contacted with an external communication device; the weak mechanical vibration signal module is used for performing weak mechanical vibration signal transmission with the external communication device after the contact sensing device senses that the communication device is connected with the external communication device; and communication module is used for performing data transmission after communication connection is built between the communication device and the external communication device according to a weak mechanical vibration signal.

Description

technical field [0001] The invention belongs to the technical field of radio frequency safety communication, in particular to a card reader and a mobile device, as well as a method and a communication system for performing distance-controllable short-distance safety data communication between the two. Background technique [0002] With the rapid development of radio frequency communication technology, radio frequency communication terminals, especially radio frequency cards, have been popularized. Through transformation, mobile or fixed communication terminals have short-distance communication functions, especially the use of mobile radio frequency communication terminals such as mobile phones to realize electronic payment and other short-distance The demand for transaction functions is getting stronger and stronger. At present, there have been methods of adding a radio frequency function (called radio frequency SIM card) to the SIM card of the mobile phone or adding a short...

AI Technical Summary

Problems solved by technology

This method needs to obtain the near-field spectrum of each RF control terminal through experiments and other methods in advance, which is called calibration. This process requires high requirements and is relatively complicated; moreover, this method is based on the strength of the RF signal, which is easily interfered by the RF signal, and the system needs to be shielded and eliminating this interference requires complex methods to achieve

Images