CN107294941B - Wireless communication system using simulated near field communication and authentication method thereof - Google Patents
Wireless communication system using simulated near field communication and authentication method thereof Download PDFInfo
- Publication number
- CN107294941B CN107294941B CN201610227064.4A CN201610227064A CN107294941B CN 107294941 B CN107294941 B CN 107294941B CN 201610227064 A CN201610227064 A CN 201610227064A CN 107294941 B CN107294941 B CN 107294941B
- Authority
- CN
- China
- Prior art keywords
- wireless communication
- communication system
- power mode
- signal
- mobile device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims abstract description 188
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 62
- 230000002093 peripheral effect Effects 0.000 claims abstract description 56
- 238000012790 confirmation Methods 0.000 claims description 9
- 230000000737 periodic effect Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 abstract description 19
- 238000010586 diagram Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0492—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload by using a location-limited connection, e.g. near-field communication or limited proximity of entities
-
- H04B5/77—
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
A wireless communication system using imitating near field communication and its authentication method, the wireless communication system is set in the peripheral application equipment, used for connecting with the mobile device, the wireless communication module of the wireless communication system is used for sending the control command, the radio frequency switch circuit of the wireless communication system is switched into the low power mode or the normal power mode according to the control command, wherein, the radio frequency switch circuit includes the signal attenuation unit, in order to attenuate the frequency of the transmission signal sent out by the wireless communication module in the low power mode in order to produce the output signal, and in the normal power mode, maintain the frequency of the transmission signal. The wireless communication system can attenuate the signal frequency in the authentication stage so as to achieve the purpose of near-field communication, and after authentication, the operation of peripheral application equipment can be executed by using the original wireless transmission mechanism.
Description
Technical Field
The present invention relates to wireless communication technologies, and more particularly, to a wireless communication system and an authentication method thereof for performing device authentication by using near field communication.
Background
With the popularization of mobile devices, more and more Peripheral applications (Peripheral applications) are developed around the mobile devices, and high compatibility of Low power consumption wireless communication mechanisms, such as Bluetooth (Bluetooth), is utilized, so that the mobile devices do not need additional devices to communicate with the Peripheral applications, for example, wearable devices and smart appliances are mostly built-in Bluetooth Low Energy (BLE) modules for direct control of users, thereby not only improving the convenience of use, but also reducing the cost of hardware devices.
When the mobile device uses the bluetooth low power consumption module to control these peripheral applications, mostly, a connection is established first and then controlled, and before the connection is established successfully, a set of pairing codes is sent first, and after the mobile device receives the correct pairing codes, the pairing is successfully calculated, at this time, the mobile device can start to control, but the pairing can be performed through the pairing codes, so that the security can be improved, but the signal of the electromagnetic wave is transmitted to all directions during pairing, if a person with a heart uses a terminal eavesdropping device to perform the analysis of the packet, the pairing packet can be cracked, so that Near Field Communication (NFC) is the most widely applied technology at present in order to improve the pairing security.
Because near field communication is when the authentication, two devices need be close to each other to certain distance just can accomplish the authentication, therefore the security is more safe than the pairing of general wireless communication mechanism, however near field communication's transmission frequency is low, and required induction coil is great, if with other system integration, will occupy some spaces, this demand that does not accord with modern electronic product frivolous short and small: in addition, the chip of the nfc reader needs to be equipped with an operating system with support to operate, which also reduces the application scope.
Therefore, it is a goal of those skilled in the art to find a method for improving the pairing security of a wireless communication mechanism, particularly, to avoid the stealing of pairing codes during the authentication of two devices, and to maintain the transmission mode of the original wireless communication, so that the general wireless communication equipment can have a secure pairing mechanism.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a system for performing device authentication mechanism in an existing wireless communication mode by emulating nfc, so as to employ nfc during the authentication phase and return to a normal communication mode after authentication to maintain connectivity between two devices.
To achieve the above and other objects, the present invention provides a wireless communication system using emulated near field communication, which is disposed in a peripheral device for connecting with a mobile device, the wireless communication system comprising: wireless communication module and radio frequency switch circuit. The wireless communication module is used for sending a control instruction, and the radio frequency switch circuit is connected to the wireless communication module and is switched into a low-power mode or a normal power mode according to the control instruction, wherein the radio frequency switch circuit comprises a signal attenuation unit which is used for attenuating the frequency of a transmission signal sent by the wireless communication module in the low-power mode so as to generate an output signal and maintaining the frequency of the transmission signal in the normal power mode.
In one embodiment, the signal attenuation unit includes a plurality of signal attenuators, and the plurality of signal attenuators respectively provide different attenuation frequencies to attenuate the transmission signal.
In another embodiment, the rf switch circuit further includes a first switch disposed before the signal attenuation unit for receiving the transmission signal from the wireless communication module. In addition, the radio frequency switch circuit also comprises a second switcher arranged behind the signal attenuation unit and used for outputting the transmission signal passing through the signal attenuation unit.
In yet another embodiment, the output signal is transmitted to the mobile device through an antenna of the peripheral application.
The present invention further provides an authentication method using a wireless communication system simulating near field communication, the wireless communication system being disposed in a peripheral application device and being used for connecting with a mobile device, the method comprising the steps of: switching the wireless communication system to a low power mode; enabling the wireless communication system to send an inquiry signal in the low power mode; enabling the mobile device to return a confirmation signal after receiving the inquiry signal; switching the wireless communication system to a normal power mode after receiving the confirmation signal; and enabling the wireless communication system and the mobile device to perform data transmission or control.
In one embodiment, before the wireless communication system is connected to the mobile device, the wireless communication system periodically switches between the low power mode and the normal power mode, and returns the wireless communication system to the periodic switching between the low power mode and the normal power mode until the wireless communication system is connected to the mobile device.
In another embodiment, the wireless communication system attenuates the frequency of the transmission signal transmitted by the wireless communication system in the low power mode through a signal attenuation unit disposed therein.
In another embodiment, the method of performing data transmission or control between the mobile device and the wireless communication system further comprises: the wireless communication system is switched from the authentication stage to the control stage so that the mobile device can control the peripheral application equipment.
Compared with the prior art, the wireless communication system using the simulated near field communication and the authentication method thereof provided by the invention have the advantages that a control mechanism is integrated with the software and hardware of the radio frequency switch circuit, so that a transmission signal sent by the wireless communication system can be selected whether to pass through the signal attenuation unit or not by the radio frequency switch circuit to reduce the signal size, the transmission of near field communication is further realized, the signal size can be reduced to transmit content with privacy, such as pairing codes or passwords and the like, the monitoring or stealing by a malicious person is avoided, namely, the authentication can be carried out through a low power mode in the authentication stage, and the authentication can be returned to a common power mode to execute data transmission or control. In addition, the wireless communication system provided by the invention can be applied to any wireless communication platform, namely, the wireless communication has the low-power-consumption communication function and the short-distance transmission effect.
Drawings
FIG. 1 is a system architecture diagram illustrating a wireless communication system using simulated near field communication in accordance with the present invention;
FIG. 2 is a diagram illustrating an embodiment of an RF control circuit in a wireless communication system using simulated near field communication according to the present invention;
FIG. 3 is a flowchart illustrating the steps of the authentication method of the present invention using a wireless communication system emulating near field communication;
FIG. 4 is a diagram illustrating a sending packet cycle of the peripheral application according to the present invention;
FIG. 5 is a timing diagram illustrating an authentication mechanism of the peripheral application according to the present invention; and
fig. 6 is a flow chart showing the rf switch circuit of the present invention switching between the authentication phase and the control phase.
Description of the symbols
Wireless communication system using simulated near field communication
11 wireless communication module
111 microcontroller
12 radio frequency switch circuit
121 signal attenuation unit
1211 to 1214 signal attenuator
122 first switch
123 second switch
2 aerial
3 moving device
41 low power mode
42 normal power mode
S31-S35
S61-S65 flow.
Detailed Description
The following description of the embodiments of the present invention is provided by way of specific examples, and other features and effects of the present invention will be apparent to those skilled in the art from the disclosure of the present invention. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways.
In order to achieve the purpose of short-distance communication transmission, but under the condition that the existing wireless communication mode is not expected to be changed excessively, the invention provides a switching mechanism, when the short-distance communication is needed, for example, when two devices are authenticated, the Near Field Communication (NFC) transmission frequency is adopted to carry out signal transmission, and under the general condition, the transmission frequency of the wireless communication mode is kept to carry out signal transmission, so that the requirement of the short-distance communication can be met under the condition that the existing wireless communication mechanism is not changed.
Please refer to fig. 1, which is a diagram illustrating a system architecture of a wireless communication system using emulated near field communication according to the present invention. As shown in the figure, the wireless communication system 1 using emulated near field communication may be disposed in a peripheral application device, such as a smart home, a digital camera, a wearable device, etc., the wireless communication system 1 using emulated near field communication may be connected to a mobile device 3, so as to be controlled by the mobile device 3, the mobile device 3 may be a mobile phone, a tablet or a notebook, but not limited thereto, wherein the wireless communication system 1 using emulated near field communication includes: a wireless communication module 11 with a microcontroller 111 and a radio frequency switch circuit 12.
The wireless communication module 11 sends a control command through the microcontroller 111. Specifically, the wireless communication module 11 is a chip for various wireless communications, such as bluetooth, Zigbee or WiFi, and as mentioned above, the present invention does not change the existing wireless communication mechanism, so the wireless communication module 11 is an existing wireless communication chip, and the microcontroller 111 therein can send a control command to the rf switch circuit 12, such as the switching control shown in the figure.
The rf switch circuit 12 is connected to the wireless communication module 11, and the rf switch circuit 12 is switched to a low power mode or a normal power mode according to a control command from the wireless communication module 11. It has been described above that the wireless communication system 1 is connected to the mobile device 3 by switching the frequency between high and low, transmitting at low power during authentication, and transmitting at high power after connection.
In a specific implementation, the control mode of the rf switch circuit 12 is that the microcontroller 111 of the wireless communication module 11 transmits a control command to the rf switch circuit 12 to control the rf switch circuit 12. Because of the hardware control, the switching speed is faster than that of using software, and the switching can be performed in less than 100 ms.
In an implementation, the rf switch circuit 12 may include a signal attenuation unit 121, and the signal attenuation unit 121 is configured to attenuate a frequency of a transmission signal transmitted by the wireless communication module 11 in a low power mode to generate an output signal, and maintain the frequency of the transmission signal and output the transmission signal in a normal power mode. In short, the rf switch circuit 12, upon receiving the control command from the wireless communication module 11, controls the signal attenuation unit 121 to attenuate the frequency of the transmission signal, and the amount of attenuation can be adjusted according to the requirement.
Referring next to fig. 2, a schematic diagram illustrating an embodiment of an rf control circuit in a wireless communication system using emulated near field communication is shown. As shown in the figure, how the rf control circuit 12 of the wireless communication system 1 simulating nfc attenuates the transmission signal is further described, wherein the rf control circuit 12 is disposed with a first switch 122 and a second switch 123 in front of and behind a signal attenuation unit 121, and the signal attenuation unit 121 includes a plurality of signal attenuators, for example, signal attenuators 1211 to 1214 in the embodiment, and provides different degrees of frequency attenuation respectively.
The first switch 122 disposed in front of the signal attenuating unit 121 is used for receiving the transmission signal from the wireless communication module 11 (as shown in fig. 1), the first switch 122 may be a single-input multiple-output switch, in this embodiment, the first switch 122 is a 1-to-4 switch, and after receiving the transmission signal, the paths of the four signal attenuators 1211-1214 are available for selection, which signal attenuator is selected according to the requirement, that is, how to switch is preset.
The signal attenuators 1211-1214 may provide different levels of frequency attenuation, such as the signal attenuator 1211 attenuating the frequency by 10dB, the signal attenuator 1212 attenuating the frequency by 15dB, the signal attenuator 1213 attenuating the frequency by 20dB, and the signal attenuator 1214 is selected to show no attenuation.
The second switch 123 disposed behind the signal attenuating unit 121 outputs the transmission signal passing through the signal attenuating unit 121, in which the second switch 123 may be a multi-input single-output switch, in this embodiment, the second switch 123 is a 4-to-1 switch, that is, after receiving the transmission signal through one of the paths of the four signal attenuators 1211 to 1214, the transmission signal is transmitted to the mobile device 3 through the antenna 2 of the peripheral application device (as shown in fig. 1).
It should be noted that the first switch 122 and the second switch 123 may be a 1-to-2 switch and a 2-to-1 switch, but not limited thereto. In addition, the two switches do not necessarily correspond to each other, that is, the first switch 122 is a 1-to-4 switch, and the second switch 123 is a 2-to-1 switch, in which four paths are selectable after the transmission signal passes through the first switch 122, and the paths are grouped in pairs and then output by the second switch 123 after passing through the signal attenuation unit 121.
As can be seen from the above, although the present embodiment employs four signal attenuators, this is only an exemplary embodiment, in other words, the number of signal attenuators or the attenuation value of each signal attenuator can be adjusted according to the design requirement, that is, as long as there are multiple signal attenuators, and the attenuation value of each signal attenuator is not limited to the above 10dB, 15dB or 20 dB.
In the present invention, a radio frequency switch circuit is connected in series under an existing wireless communication module (for example, a BLE module), and a microprocessor in the wireless communication module is used to control the radio frequency switch circuit to select a suitable path for transmission with a mobile device.
If it is difficult to simulate the NFC transmission with a general wireless network, or if the signals are received without being close to the general wireless network, i.e. even though the simulation is performed by turning down the power of the general wireless network, the distance between the two devices is still 30cm, the present invention proposes that the power can be adjusted to the situation that the chip cannot be adjusted through the software and hardware cooperation, i.e. the signals can be received only within a few centimeters, so that the change does not replace the existing wireless network transmission, but only simulates the NFC transmission.
The wireless communication module can be Bluetooth, ZigBee, WiFi and the like, the safety of the wireless communication module is more remarkable under the condition that private data exchange is required to be carried out in a short distance, and even if a person wants to monitor the wireless communication module, the wireless communication module cannot obtain the private data such as pairing codes or passwords because the signal intensity is too small, so that the private data can not be stolen.
In addition, the system provided by the invention can carry out near field communication without additional communication chips (such as NFC and RFID), thereby greatly reducing the cost of peripheral application equipment, and the communication chips are not required to be arranged in an additional space, thereby reducing the complexity of circuit layout, and simultaneously saving more electricity under the condition of reducing the active circuits.
Please refer to fig. 3, which is a flowchart illustrating an authentication method using a wireless communication system simulating nfc according to the present invention. The authentication method described herein is how the peripheral application device using the wireless communication system simulating nfc according to the present invention is connected to the mobile device, and includes an authentication phase before the two devices are connected to each other and a control phase after the two devices are connected to each other.
In step S31, the wireless communication system switches to the low power mode. Specifically, the peripheral device can switch between a low power mode and a normal power mode through the wireless communication system, wherein the low power mode is used for the authentication phase, and the normal power mode is used for the control phase.
In the specific implementation, the peripheral application device mainly issues an inquiry mechanism to sense whether there are other mobile devices to be connected to the peripheral application device, and in this step, in order to ensure that the pairing code or the password before the connection is not stolen, the inquiry signal is sent in a low power mode.
In step S32, the wireless communication system sends an inquiry signal in the low power mode. In short, when the wireless communication system is in the low power mode, the transmitted interrogation signal (e.g., polling) is attenuated, and therefore can be received only by the mobile device in a short distance.
In step S33, the mobile device returns a confirmation signal after receiving the inquiry signal. In this step, after receiving the inquiry signal, if the mobile device is about to connect to the peripheral device, an acknowledgement signal (e.g., ACK) is sent back, since the two are close, so the wireless communication system of the peripheral device can determine that the mobile device is a legitimate connected device.
In step S34, the wireless communication system switches to the normal power mode after receiving the confirmation signal. In this step, after the wireless communication system receives the confirmation signal returned by the mobile device, it indicates that the peripheral application device and the mobile device complete authentication, and the wireless communication system switches to the normal power mode to connect with the mobile device.
In step S35, the wireless communication system performs data transmission or control with the mobile device. As described in the previous step, after the peripheral application device and the mobile apparatus complete authentication, the two devices can use the normal power mode to perform data transmission or control the peripheral application device by the mobile apparatus, and more specifically, the wireless communication system is switched from the authentication phase to the control phase, i.e., the peripheral application device can be connected to the mobile apparatus for operation.
It can be seen from the above that, the wireless communication system of the peripheral application device can continuously inquire whether a mobile device in the periphery needs to perform connection, and the inquiry timing is in the low power mode, at this time, the frequency is small, so the mobile device needs to receive the data only nearby, which also improves the security of data exchange, especially the pairing code or the password before connection, and after authentication, the wireless communication system is subsequently switched back to the normal function mode, that is, the original transmission mechanism of the wireless communication module in the original wireless communication system, and the wireless communication system and the mobile device can be connected and perform data transmission or control.
However, in order to maintain the original transmission scheme of the peripheral application device and to perform the transmission scheme simulating the nfc, the wireless communication system periodically switches between the low power mode and the normal power mode. In addition, the wireless communication system attenuates the frequency of the transmission signal sent by the wireless communication system in a low power mode through the signal attenuation unit arranged in the wireless communication system.
Please refer to fig. 4, which is a diagram illustrating a sending packet cycle of the peripheral application apparatus according to the present invention. As shown in the figure, during the periodic transition, the low power mode 41 may be set for a period of time, and the normal power mode 42 may be set for a period of time, and the ratio of the two modes may be set according to design requirements, that is, the wireless communication system first transitions to the low power mode 41 for inquiry, and if no response is received, the wireless communication system returns to the normal power mode 42 to execute the original operation executed by the peripheral application device, so that the original transmission mechanism of the peripheral application device is preserved, and the transmission simulating the nfc may be executed.
In the implementation, when the wireless communication system simulating the nfc sends out the inquiry packet, if a legal mobile device approaches, the inquiry packet can be received and the authentication is completed, and the rf switch circuit in the wireless communication system is switched to the high attenuation path (i.e., the low power mode). On the contrary, when the wireless communication system simulating nfc is used for packets without being in the authentication state, i.e. broadcast packets of general wireless communication, the rf switch circuit switches to the non-attenuation path (Enable switch to select low power mode), i.e. high power mode.
In addition, if the wireless communication system and the mobile device need to wait for the two devices to finish the connection after the wireless communication system and the mobile device are authenticated to be connected, the wireless communication system returns to the periodic transition between the low power mode and the normal power mode.
Please refer to fig. 5, which is a timing diagram illustrating an authentication mechanism of the peripheral application according to the present invention. As shown, it shows how authentication between a mobile device and a wireless communication system using an emulated near field communication is performed in a peripheral application.
In timing 1, the wireless communication system sends an inquiry packet with low power to enter the authentication mode.
At time 2, the mobile devices around the peripheral application equipment may send back an Acknowledgement (ACK) if they receive the inquiry packet.
In the time sequence 3, after the wireless communication system receives the mobile device return confirmation packet, the two are successfully authenticated, and the mode is switched to the signal transmission mode.
In sequence 4, the wireless communication system notifies the mobile device that the mobile device can enter the control mode, i.e., the wireless communication system notifies the mobile device that the peripheral application can be controlled.
In sequence 5, the mobile device performs control of the peripheral application.
Please refer to fig. 6, which is a flowchart illustrating the rf switch circuit of the present invention switching between the authentication phase and the control phase.
In the process S61, the rf switch circuit is switched to the high attenuation path. Specifically, in order to connect only devices in a short distance, the frequency is reduced by attenuating the frequency, thereby achieving the purpose of short-distance communication.
In the process S62, it is determined whether there is an acknowledgement from the mobile device. In short, if a mobile device receives a lower frequency query signal (query packet) sent by a peripheral device, an acknowledgement signal may be returned to inform the peripheral device that the peripheral device can be connected, wherein the mobile device is close enough to receive the query signal.
In the process S63, the peripheral application devices are allowed to be controlled. In this step, in the process of S62, the peripheral application device receives an acknowledgement signal from the mobile device indicating that the mobile device and the peripheral application device can be connected, and after the mobile device and the peripheral application device are authenticated, the peripheral application device can notify the mobile device to execute control until the connection between the mobile device and the peripheral application device is completed, during which the peripheral application device maintains the transmission mechanism of the general wireless communication.
In the process S64, the rf switch circuit is switched to the low attenuation path. In this step, in the process of S62, the peripheral application device has not received the confirmation signal returned by the mobile device, which indicates that there is no mobile device to connect to the peripheral application device, and in order to keep the peripheral application device operating normally in the original wireless communication transmission scheme, the rf switch circuit is switched to the low attenuation path, i.e., the original wireless communication transmission scheme.
In the process S65, the identification data of the peripheral application is broadcasted. As described in the previous step, the rf switch circuit is switched to the low attenuation path, and the peripheral application device returns to the original function, and the peripheral application device broadcasts its identification data, that is, it looks for whether there is a peripheral mobile device to be connected through the original wireless communication transmission mechanism, in other words, it can receive the inquiry packet regardless of the remote or close device.
In summary, the wireless communication system using the simulated near field communication and the authentication method thereof of the present invention utilize the control mechanism in the wireless communication system to integrate with the software and hardware of the rf switch circuit, so that the transmission signal sent by the wireless communication system can select whether to pass through the signal attenuation unit to reduce the signal size, further achieve the purpose of near field communication transmission, reduce the signal size to improve the transmission security, and avoid being monitored or stolen by a malicious person; in addition, signal attenuation is performed only during authentication, that is, the authentication stage performs authentication through the low power mode, and after authentication, the authentication returns to the normal power mode to perform transmission of the original wireless transmission mechanism. Therefore, the wireless communication system provided by the invention can be applied to any wireless communication platform, so that the wireless communication has a low-power-consumption communication function and a short-distance transmission effect, the authentication safety is improved, and meanwhile, the effect of quick response is achieved.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those of ordinary skill in the art without departing from the spirit and scope of the present invention. Therefore, the scope of the invention should be determined from the following claims.
Claims (9)
1. A wireless communication system using emulated near field communication, disposed in a peripheral device, for connecting to a mobile device, the wireless communication system comprising:
the wireless communication module is used for sending a control instruction; and
a radio frequency switch circuit connected to the wireless communication module for switching the radio frequency switch circuit to a low power mode or a normal power mode according to the control command,
the radio frequency switch circuit comprises a signal attenuation unit, a normal power mode and a power mode, wherein the signal attenuation unit is used for attenuating the frequency of a transmission signal sent by the wireless communication module in the low power mode to generate an output signal and maintaining the frequency of the transmission signal in the normal power mode, and before the wireless communication system is connected with the mobile device, the wireless communication system is in the low power mode and the normal power mode periodically switched.
2. The wireless communication system using emulated near field communication of claim 1, wherein the signal attenuation unit comprises a plurality of signal attenuators, such that different attenuation frequencies are provided by the plurality of signal attenuators, respectively, to attenuate the transmission signal.
3. The wireless communication system using emulated near-field communication of claim 1, wherein the radio frequency switch circuit further comprises a first switch disposed before the signal attenuation unit for receiving the transmission signal from the wireless communication module.
4. The wireless communication system using emulated near-field communication of claim 1, wherein the rf switch circuit further comprises a second switch disposed after the signal attenuation unit for outputting the transmission signal after passing through the signal attenuation unit.
5. The wireless communication system using emulated near-field communication of claim 1, wherein the output signal is transmitted to the mobile device through an antenna of the peripheral application.
6. An authentication method using a wireless communication system simulating near field communication, the wireless communication system being provided in a peripheral application for connecting with a mobile device, the method comprising the steps of:
switching the wireless communication system to a low power mode, wherein the wireless communication system periodically switches between the low power mode and a normal power mode before the wireless communication system is connected to the mobile device;
enabling the wireless communication system to send an inquiry signal in the low power mode;
enabling the mobile device to return a confirmation signal after receiving the inquiry signal;
switching the wireless communication system to the normal power mode after receiving the confirmation signal; and
the wireless communication system and the mobile device execute data transmission or control.
7. The method of claim 6, wherein the periodic transition between the low power mode and the normal power mode is resumed until the wireless communication system is disconnected from the mobile device.
8. The authentication method of claim 6, wherein the wireless communication system attenuates the frequency of the transmission signal transmitted by the wireless communication system in the low power mode via a signal attenuation unit disposed therein.
9. The authentication method of claim 6, wherein the wireless communication system performing data transmission or control with the mobile device further comprises: the wireless communication system is switched from the authentication stage to the control stage so that the mobile device can control the peripheral application equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610227064.4A CN107294941B (en) | 2016-04-13 | 2016-04-13 | Wireless communication system using simulated near field communication and authentication method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610227064.4A CN107294941B (en) | 2016-04-13 | 2016-04-13 | Wireless communication system using simulated near field communication and authentication method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107294941A CN107294941A (en) | 2017-10-24 |
| CN107294941B true CN107294941B (en) | 2020-08-28 |
Family
ID=60093126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610227064.4A Active CN107294941B (en) | 2016-04-13 | 2016-04-13 | Wireless communication system using simulated near field communication and authentication method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107294941B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9912567B2 (en) * | 2015-09-23 | 2018-03-06 | Mediatek Inc. | Method of handling NFC device with non-fixed low power polling number and NFC device using the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101360273A (en) * | 2008-06-30 | 2009-02-04 | 秦曼 | Method for short-distance transceiving and processing name card information using mobile phone |
| CN103516510A (en) * | 2012-06-18 | 2014-01-15 | 宏达国际电子股份有限公司 | Wireless communication system access control method and related wireless communication system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60234573D1 (en) * | 2001-01-30 | 2010-01-14 | Broadcom Corp | Method for adding a new device to a wireless network |
| US7254421B2 (en) * | 2004-04-16 | 2007-08-07 | Archteck, Inc. | Configurable wireless computer communication attenuation device |
| EP2421234A1 (en) * | 2010-08-16 | 2012-02-22 | Research In Motion Limited | Near-field communication (nfc) system providing low power peer-to-peer recognition mode and related methods |
| JP5524002B2 (en) * | 2010-09-21 | 2014-06-18 | 株式会社東芝 | Radio communication system and mobile radio communication apparatus in broadcast radio transmission |
| CN103187993B (en) * | 2011-12-31 | 2015-11-18 | 国民技术股份有限公司 | A kind of communication means and terminal |
| US9773241B2 (en) * | 2012-11-06 | 2017-09-26 | Intel Corporation | Dynamic boost of near field communications (NFC) performance/coverage in devices |
-
2016
- 2016-04-13 CN CN201610227064.4A patent/CN107294941B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101360273A (en) * | 2008-06-30 | 2009-02-04 | 秦曼 | Method for short-distance transceiving and processing name card information using mobile phone |
| CN103516510A (en) * | 2012-06-18 | 2014-01-15 | 宏达国际电子股份有限公司 | Wireless communication system access control method and related wireless communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107294941A (en) | 2017-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9762408B2 (en) | Modular wireless power, light and automation control | |
| CN103618670A (en) | Intelligent gateway and intelligent home system | |
| CN105323824A (en) | WIFI equipment, electronic device and method for assisting WIFI equipment access to network | |
| US20160132029A1 (en) | Method for configuring and controlling smart home products | |
| CN106878933A (en) | A kind of bluetooth equipment network-building method and system | |
| CN105450302A (en) | Visible light receiving and transmitting device, visible light communication terminal, and visible light communication system | |
| CN103561088B (en) | A kind of long-range control method logged in based on account and device | |
| CN103235584B (en) | Intelligent home furnishing control method, device, MCU and system | |
| CN103442151A (en) | Remote controller and remote control method based on smart mobile terminal | |
| CN202720467U (en) | Intelligent socket remote control system | |
| CN105591755A (en) | Intelligent home system and authentication connection method on the basis of sound wave authentication connection | |
| CN111989723B (en) | Sharing system | |
| CN101799971A (en) | Remote control method and remote control system | |
| CN107294941B (en) | Wireless communication system using simulated near field communication and authentication method thereof | |
| JP6555265B2 (en) | Processing device, information processing device, information processing system, processing method, and information processing method | |
| TWI622278B (en) | Wireless communication system using mimicked near field communication and authentication method thereof | |
| CN110267265B (en) | WIFI distribution network device and method and WIFI equipment | |
| CN103795447A (en) | Electronic equipment and method for information processing | |
| CN114338356B (en) | Network repairing method, electronic equipment and mobile equipment | |
| CN101729111A (en) | Double antenna communication device and method | |
| CN101277514A (en) | Method for establishing wireless connection and mobile terminal | |
| US9065522B2 (en) | Radio frequency front-end module, and radio access network device and control method | |
| CN109309608A (en) | A kind of smart home internet of things wide area dynamic unlocking system | |
| CN103607755A (en) | Wireless local area network communication channel control method based on frequency hopping | |
| CN114501523B (en) | WAPI switching test device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |