CN101739591A - Radio frequency card and radio frequency communication equipment capable of protecting safe communication, and application method thereof - Google Patents
Radio frequency card and radio frequency communication equipment capable of protecting safe communication, and application method thereof Download PDFInfo
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- CN101739591A CN101739591A CN200810219279A CN200810219279A CN101739591A CN 101739591 A CN101739591 A CN 101739591A CN 200810219279 A CN200810219279 A CN 200810219279A CN 200810219279 A CN200810219279 A CN 200810219279A CN 101739591 A CN101739591 A CN 101739591A
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Abstract
The invention relates to a radio frequency card and radio frequency communication equipment capable of protecting safe communication, and an application method thereof. The traditional radio frequency card continuously reflects signals and sensitive data, thereby being read by any one compatible reader holder; and internal information of the traditional radio frequency card is easy to steal. Therefore, the radio frequency card capable of protecting safe communication is characterized in that a switch is arranged on a radio frequency communication loop. In the design, the radio frequency communication loop is switched on only when needed, the radio frequency communication loop is switched off through the switch when not used usually, therefore, the information can not be stolen by lawless persons. Preferably, the switch is arranged on a radio frequency antenna or between the radio frequency antenna and a radio frequency card chip. The invention also discloses the radio frequency communication equipment capable of protecting safe communication and the application method thereof. The invention has the advantages of simple structure, low cost, convenient use and remarkable anti-theft effect, and is an ideal renewal product of the traditional radio frequency cards and the radio frequency equipment.
Description
Technical field
The present invention relates to a kind of radio-frequency card, radio frequency communication devices and using method thereof of protecting communication security.
Background technology
Radio-frequency technique is one and utilizes radiofrequency signal to realize the technology that contactless information is transmitted by the space coupling.Be widely used in producing, needs such as logistics, traffic, transportation, medical treatment, false proof, tracking, equipment and asset management are collected and the application of deal with data.
Radio system is made up of three parts: label (being radio-frequency card), form by coupling element and chip, contain built-in aerial, be used for and radio-frequency antenna between communicate; Read write line reads or writes the equipment of radio-frequency card information; Antenna transmits radiofrequency signal between radio-frequency card and read write line.
The basic functional principle of radio system is as follows: read write line is by the radiofrequency signal of transmission antennas transmit certain frequency, when entering the emitting antenna perform region, radio-frequency card produces induction current, radio-frequency card obtains energy and is activated, radio-frequency card sends information such as self coding by built-in aerial, system's receiving antenna receives the carrier signal of sending from radio-frequency card, be sent to read write line through the antenna adjustments device, read write line carries out the demodulation sign indicating number to the signal that receives and delivers to the backstage main system then and carry out relevant treatment, main system is judged the legitimacy of this radio-frequency card according to logical operation, make corresponding processing and control at different settings, send the action of command signal control executing mechanism.
As shown in Figure 1, the sub-fraction magnetic line of force in emission magnetic field passes the radio-frequency card aerial coil apart from reading and writing device antenna coil, certain distance, produces a voltage by induction on the radio-frequency card aerial coil, will can be used as the energy source of data carrier after its rectification.Reading and writing device antenna coil and capacitor C r and radio-frequency card aerial coil and capacitor C 1 constitute oscillation circuit respectively, if both resonance, then the voltage at radio-frequency card coil two ends reaches maximum, simultaneously the break-make of load is impelled reading and writing device antenna the changing of cutting down output that power on the radio-frequency card antenna, realize that the long-range radio-frequency card carries out the ASK modulation to aerial voltage, thereby the radio-frequency card data transmission is arrived read write line.Same method can realize the transmission of read write line to the radio-frequency card data.
The radio system communications security is mainly handled by the control module of read write line at present, and control module is carried out anti-collision algorithm, and the data that will transmit between radio-frequency card and read write line are carried out encryption and decryption, carries out the functions such as authentication between radio-frequency card and read write line.
Because radio-frequency card is reflected signal and responsive data ceaselessly, therefore can be read, as long as they can be near acquired signal by any one compatible read write line holder.
Cracking about radio communication has a lot of data, and this also is the very common target of assaulting fortified position for the researcher.Frequency read/write can be invaded at an easy rate, and radio-frequency card is easy to be replicated equally.This makes based on the pass of radio communication construction, passport, and credit card and other types information transmission card are very easy to suffer the fraud of identity theft or other type.The people that a people's identity and financial information sit by sb's side on instantly by same bus or train probably steals, or even the people that walking on the way passes each other so close that they almost rubbed each other also can so do.
Summary of the invention
The technical problem to be solved in the present invention is the above-mentioned defective that how to overcome existing radio system, and a kind of radio-frequency card, radio frequency communication devices and using method thereof of protecting communication security is provided.
For solving the problems of the technologies described above, originally can protect the radio-frequency card of communication security, it is characterized in that: on the radio communication loop, be provided with switch.The radio communication loop is only just connected in so design when needed, usually time spent not, by switch, disconnects the radio communication loop, can not stolen information by the lawless person.
As optimization, described switch is arranged on the radio-frequency antenna, perhaps between radio-frequency antenna and the radio-frequency card chip.So design is convenient to install.
As optimization, described switch is the hand switch of physical construction.So design, simple in structure, make conveniently.
As optimization, described switch is normally closed switch (with the open circuit is normality, and promptly under normal conditions, the radio communication loop disconnects).So design is easy to use.
As optimization, described switch is toggle switch, keyswitch or thin film switch.So design is simple in structure.
The present invention can protect the radio-frequency apparatus of communication security, comprises radio-frequency card and read write line, it is characterized in that: described radio-frequency card is aforesaid radio-frequency card.
The present invention can protect the using method of the radio-frequency card of communication security, comprises the steps: 1., when not needing to use, and makes the switch on the radio communication loop keep open-circuit condition, disconnects the radio communication loop; 2., when using,, connect the radio communication loop, the radio-frequency card operate as normal earlier with the switch closure on the radio communication loop; 3. after finishing using, disconnect the radio communication loop, and make switch keep open-circuit condition.So design, only under the situation of switch connection, radio-frequency card just to external world signal respond, significantly reduced the stolen possibility of information.
That the present invention has is simple in structure, cost is low, easy to use, antitheft significant advantage, is the desirable regeneration product of existing radio-frequency card, radio-frequency apparatus.
Description of drawings
Be described further originally protecting the radio-frequency card of communication security below in conjunction with accompanying drawing:
The inductive coupling schematic diagram that Fig. 1 communicates by letter with read write line for radio-frequency card;
Fig. 2 can protect the structural representation of the radio-frequency card embodiment one of communication security for the present invention;
Fig. 3 can protect the structural representation of the radio-frequency card embodiment two of communication security for the present invention;
Fig. 4 is for being provided with the synoptic diagram of keyswitch on the radio-frequency card built-in aerial.
1 is that radio-frequency card, 2 is that magnetic field, 3 is that read write line, 4 is radio-frequency antenna among the figure, and 5 is that switch, 51 is that movable contact spring, 52 is static contact.
Embodiment
Embodiment one: the present invention can protect the radio-frequency card of communication security, it is characterized in that: be provided with switch on the radio communication loop.This switch is arranged on the radio-frequency antenna, as shown in Figure 2.
This switch is the hand switch of physical construction, and preferred normally closed switch can be a keyswitch (can certainly be toggle switch, thin film switch or other switches simple in structure) shown in Figure 4.
Embodiment two: described switch is provided with between radio-frequency antenna and the radio-frequency card chip, and as shown in Figure 3, all the other structures are as described in the enforcement mode one.
Embodiment three: the present invention could protect the radio-frequency apparatus of communication security, comprises radio-frequency card and read write line, and wherein, described radio-frequency card is embodiment one a described radio-frequency card, and figure slightly!
Embodiment four: the present invention can protect the using method of the radio-frequency card of communication security, comprises the steps: 1., when not needing to use, and makes the switch on the radio communication loop keep open-circuit condition, disconnects the radio communication loop; 2., when using,, connect the radio communication loop, the radio-frequency card operate as normal earlier with the switch closure on the radio communication loop; 3. after finishing using, disconnect the radio communication loop, and make switch keep open-circuit condition, figure slightly!
Any alternatives, only otherwise deviate from the design philosophy of the present invention protection scope of the present invention that all falls.
Claims (7)
1. the radio-frequency card that can protect communication security is characterized in that: be provided with switch on the radio communication loop.
2. the method for communication security in the protection radio system according to claim 1, it is characterized in that: described switch is arranged on the radio-frequency antenna, perhaps between radio-frequency antenna and the radio-frequency card chip.
3. the radio-frequency card of protecting communication security according to claim 2 is characterized in that: described switch is the hand switch of physical construction.
4. according to claim 1 or the 2 or 3 described radio-frequency cards of protecting communication security, it is characterized in that: described switch is a normally closed switch.
5. the radio-frequency card of protecting communication security according to claim 4 is characterized in that: described switch is toggle switch, keyswitch or thin film switch.
6. the radio-frequency apparatus that can protect communication security comprises radio-frequency card and read write line, it is characterized in that: described radio-frequency card is the arbitrary described radio-frequency card of claim 1 to 5.
7. one kind is utilized the arbitrary described using method of protecting the radio-frequency card of communication security of claim 1 to 5, comprises the steps: 1., when not needing to use, and makes the switch on the radio communication loop keep open-circuit condition, disconnects the radio communication loop; 2., when using,, connect the radio communication loop, the radio-frequency card operate as normal earlier with the switch closure on the radio communication loop; 3. after finishing using, disconnect the radio communication loop, and make switch keep open-circuit condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810219279A CN101739591A (en) | 2008-11-21 | 2008-11-21 | Radio frequency card and radio frequency communication equipment capable of protecting safe communication, and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810219279A CN101739591A (en) | 2008-11-21 | 2008-11-21 | Radio frequency card and radio frequency communication equipment capable of protecting safe communication, and application method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101739591A true CN101739591A (en) | 2010-06-16 |
Family
ID=42463051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810219279A Pending CN101739591A (en) | 2008-11-21 | 2008-11-21 | Radio frequency card and radio frequency communication equipment capable of protecting safe communication, and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101739591A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353947A (en) * | 2013-07-24 | 2013-10-16 | 车德军 | Anti-skimming protection device for radio frequency card |
| CN103489029A (en) * | 2013-09-26 | 2014-01-01 | 中国联合网络通信集团有限公司 | Radio frequency card |
| CN104463315A (en) * | 2014-12-22 | 2015-03-25 | 东信和平科技股份有限公司 | Non-contact integrated circuit card |
| CN104766030A (en) * | 2014-01-02 | 2015-07-08 | 苏州海博智能系统有限公司 | IC (Integrated Chip) card stolen swiping prevention device and method |
| CN106203600A (en) * | 2016-07-21 | 2016-12-07 | 恒宝股份有限公司 | A kind of smart card |
-
2008
- 2008-11-21 CN CN200810219279A patent/CN101739591A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353947A (en) * | 2013-07-24 | 2013-10-16 | 车德军 | Anti-skimming protection device for radio frequency card |
| CN103489029A (en) * | 2013-09-26 | 2014-01-01 | 中国联合网络通信集团有限公司 | Radio frequency card |
| CN103489029B (en) * | 2013-09-26 | 2017-02-08 | 中国联合网络通信集团有限公司 | Radio frequency card |
| CN104766030A (en) * | 2014-01-02 | 2015-07-08 | 苏州海博智能系统有限公司 | IC (Integrated Chip) card stolen swiping prevention device and method |
| CN104766030B (en) * | 2014-01-02 | 2021-08-06 | 苏州海博智能系统有限公司 | IC card anti-theft brushing device and method |
| CN104463315A (en) * | 2014-12-22 | 2015-03-25 | 东信和平科技股份有限公司 | Non-contact integrated circuit card |
| CN106203600A (en) * | 2016-07-21 | 2016-12-07 | 恒宝股份有限公司 | A kind of smart card |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100616 |