CN104361372A - Radio frequency card based on remote control - Google Patents

Abstract

The invention discloses a radio frequency card based on remote control, which comprises a casing and an electronic component arranged inside the casing, and the electronic component includes a radio frequency chip, an induction coil, a switch, a switch control circuit, and a data processing device, positioning module, fingerprint recognition module and power module. The present invention needs to carry out the identification of the fingerprint through the fingerprint identification system, and then through the information identification module in the data processor to analyze the control instruction issued by the fingerprint identification system and convert it into a data instruction, and then the data processor according to the data instruction Send a corresponding control signal to the switch control circuit, the switch control circuit controls the opening and closing of the switch according to the control signal to control the transmission of signals between the radio frequency chip and the induction coil, so that when the radio frequency card is lost, the person who finds it It cannot be used, and at the same time, the location of the radio frequency card can be found in time through the positioning device.

Description

A radio frequency card based on remote control

technical field

The invention relates to an intelligent circuit (IC) card, in particular to a radio frequency card based on remote control.

Background technique

RFID (Radio Frequency IDentification) technology, also known as electronic tags and radio frequency identification, is a communication technology that can identify specific targets through radio signals and read and write related data without the need to establish a mechanical system between the identification system and specific targets. or optical contacts. Commonly used are low frequency (125k ~ 134.2K), high frequency (13.56Mhz), ultra high frequency, passive and other technologies. RFID readers are also divided into mobile and fixed. At present, RFID technology is widely used, such as: libraries, access control systems, food safety traceability, etc.

Radio frequency card (RF card), also known as non-contact IC card, is a new technology developed in recent years. It successfully combines radio frequency identification technology and IC card technology, and integrates An integrated circuit chip and antenna are packaged in a plastic substrate to transmit data wirelessly. The appearance is basically the same as that of an ordinary credit card. The information is stored and processed by the integrated circuit in the card. The RF card is in a non-contact operation state when reading and writing, which avoids misoperations such as reading and writing errors caused by poor contact, and at the same time avoids It eliminates the impact of dust, oil and other harsh external environments on reading and writing cards.

However, due to the thin and light size of the radio frequency card, it is easy to lose it during daily use, which brings great troubles to users. For example, the meal card is the most common type of radio frequency card. When it is lost, the user may not be able to report the loss of the lost radio frequency card in time due to other reasons. In this case, if the lost radio frequency card is picked up by a person with bad intentions, the amount in the radio frequency card can be used through places such as supermarkets using radio frequency card swiping technology in its environment. Simply put, the current radio frequency card lacks the anti-theft function when it is lost.

Contents of the invention

In order to solve the above problems, the present invention provides a radio frequency card based on remote control. Once the radio frequency card is lost, the person who finds it cannot use it. At the same time, the location of the radio frequency card can be found in time through the positioning device.

In order to achieve the above object, the technical scheme that the present invention takes is:

A radio frequency card based on remote control, comprising a casing and an electronic component arranged inside the casing, the electronic component including a radio frequency chip, an induction coil, a switch, a switch control circuit, a data processor, and a positioning module . A fingerprint recognition module and a power supply module, wherein the switch is installed between the radio frequency chip and the induction coil for transmission of connection signals; the switch control circuit is connected to the switch for controlling the switch on and off; the data processor is respectively connected to the switch control circuit and the fingerprint identification module; the power supply module is connected to the positioning module, the data processor, and the fingerprint identification module through a power cord; The outer side of the shell is provided with a solar receiving board, the solar receiving board is connected to the power supply module through a power line, the positioning module includes a GPS chip, an RFID chip and an electronic compass chip, the GPS chip includes a central processing module, and the GPS input The signal enters the central processing module through the noise suppression module and the gain amplification module, the GPS output signal is output through the wireless signal transmitting module, the RFID chip and the electronic compass chip are connected with the central processing module, and the data processor includes an information identification module for After analyzing the control instruction received by the fingerprint identification module and converting it into a data instruction, the data processor sends a corresponding control signal to the switch control circuit according to the received data instruction, and the switch control circuit The circuit controls the opening and closing of the switch according to the control signal.

Preferably, the switch is a triode, and the switch control circuit is a triode switch control circuit.

Preferably, the RFID chip adopts RM9030.

Preferably, the electronic compass chip adopts AK8973.

Preferably, the central control module adopts a single-chip microcomputer.

Preferably, a layer of high light transmittance silica gel is provided on the outer side of the shell.

The present invention needs to carry out the identification of the fingerprint through the fingerprint identification system, and then through the information identification module in the data processor to analyze the control instruction issued by the fingerprint identification system and convert it into a data instruction, and then the data processor according to the data instruction Send a corresponding control signal to the switch control circuit, the switch control circuit controls the opening and closing of the switch according to the control signal to control the transmission of signals between the radio frequency chip and the induction coil, so that when the radio frequency card is lost, the person who finds it It cannot be used, and at the same time, the location of the radio frequency card can be found in time through the positioning device.

Description of drawings

FIG. 1 is an overall module connection diagram of a radio frequency card based on remote control according to an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a positioning module in a radio frequency card based on remote control according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of the connection between the GPS module and the RFID chip and the electronic compass chip in a specific embodiment of the present invention.

Detailed ways

In order to make the objects and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Figures 1-3, the embodiment of the present invention provides a radio frequency card based on remote control, including a housing 1 and an electronic component 2 inside the housing 1, the electronic component 2 includes a A radio frequency chip 25, an induction coil 23, a switch 24, a switch control circuit 22, a data processor 21, a positioning module 25, a fingerprint recognition module 20 and a power supply module 27, the switch 24 is installed between the radio frequency chip 25 and the induction coil 23 between, for connection signal transmission; the switch control circuit 22 is connected to the switch 24, for controlling the opening and closing of the switch 24; the data processor 21 is respectively connected to the switch control circuit 22 and the The fingerprint identification module 20; the power supply module 27 is connected to the positioning module 25, the data processor 21, and the fingerprint identification module 20 through a power cord; 28 is connected with described power supply module 27 by power cord, and described positioning module 25 comprises GPS chip 250, RFID chip 251 and electronic compass chip 252, and described GPS chip 250 comprises central processing module 30, and GPS input signal passes through noise suppression module 31 Enter the central processing module 30 with the gain amplification module 32, the GPS output signal is output through the wireless signal transmitting module 33, the RFID chip 251 and the electronic compass chip 252 are connected with the central processing module 30, and the data processor 21 includes an information identification module 210, for analyzing the control instruction received by the fingerprint identification module and converting it into a data instruction, and the data processor 21 sends a corresponding control signal to the switch control circuit 22 according to the received data instruction , the switch control circuit 22 controls the opening and closing of the switch 24 according to the control signal.

The switch is a triode, and the switch control circuit is a triode switch control circuit.

The RFID chip 251 is RM9030.

The electronic compass chip 252 adopts AK8973.

The central control module 30 adopts a single-chip microcomputer.

The outer side of the shell 1 is provided with a layer of high light transmittance silica gel.

The power module 27 is a lithium battery.

Wherein, in this specific implementation, the fingerprint identification system is provided with a fingerprint entry module, once entered, it cannot be changed.

This specific implementation needs to carry out the identification of fingerprints through the fingerprint identification system, and then through the information identification module in the data processor to analyze the control instructions issued by the fingerprint identification system and convert them into data instructions, and then the data processor according to the data The command sends a corresponding control signal to the switch control circuit, and the switch control circuit controls the opening and closing of the switch according to the control signal so as to control the transmission of signals between the radio frequency chip and the induction coil, so that when the radio frequency card is lost, the person who finds it It cannot be used. At the same time, the input signal of the GPS first passes through the noise suppression module to filter the noise, and then enters the central processing module after the signal is amplified by the gain amplification module. When the GPS signal cannot be received temporarily, the electronic compass chip will input the moving track of the radio frequency card into the central processing module, and the central processing module will calculate the current approximate position of the radio frequency card according to the final positioning information, and then send this position to Original mobile phone number. This avoids the positioning blind area caused by the temporary inability to receive GPS signals. The rechargeable lithium battery of the present invention is equipped with a solar battery panel, which can realize real-time charging during use, and the high-transmittance silica gel on the outside of the casing has the effect of buffering vibration and protecting the circuit chip inside the casing.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be It is regarded as the protection scope of the present invention.

Claims (6)

1. A radio frequency card based on remote control, comprising a housing and an electronic assembly located inside the housing, said electronic assembly including a radio frequency chip, induction coil, switch, switch control circuit, data processor, The positioning module, the fingerprint recognition module and the power supply module are characterized in that the switch is erected between the radio frequency chip and the induction coil for connection signal transmission; the switch control circuit is connected to the switch for controlling The opening and closing of the switch; the data processor is respectively connected to the switch control circuit and the fingerprint identification module; the power supply module is connected to the positioning module, the data processor, and the fingerprint identification module through a power line, The outer side of the housing is provided with a solar receiving board, the solar receiving board is connected to the power supply module through a power line, the positioning module includes a GPS chip, an RFID chip and an electronic compass chip, and the GPS chip includes a central processing module, The GPS input signal enters the central processing module through the noise suppression module and the gain amplification module, the GPS output signal is output through the wireless signal transmitting module, the RFID chip and the electronic compass chip are connected with the central processing module, and the data processor includes an information identification module , for analyzing the control instruction received by the fingerprint identification module and converting it into a data instruction, the data processor sends a corresponding control signal to the switch control circuit according to the received data instruction, the The switch control circuit controls the opening and closing of the switch according to the control signal. 2 . The radio frequency card based on remote control according to claim 1 , wherein the switch is a triode, and the switch control circuit is a triode switch control circuit. 3 . 3. A radio frequency card based on remote control according to claim 1, characterized in that the RFID chip is RM9030. 4. A radio frequency card based on remote control according to claim 1, characterized in that the electronic compass chip is AK8973. 5. The radio frequency card based on remote control according to claim 1, wherein the central control module adopts a single-chip microcomputer. 6 . The radio frequency card based on remote control according to claim 1 , wherein a layer of high light transmittance silica gel is arranged on the outside of the housing. 7 .