TWI659326B - Intelligent authentication system and electronic key thereof - Google Patents

Abstract

An intelligent authentication system includes an electronic lock and an electronic key. The electronic key includes an electronic paper display device. The electronic key is suitable for a two-phase authentication step with an electronic lock. The two-phase authentication step includes a first-phase authentication step and a second-phase authentication step. After passing the first-stage authentication step, the electronic paper display device is driven. During the second-stage authentication step, the electronic key performs an authentication operation using a driven electronic paper display device and an electronic lock. In addition, an electronic key suitable for the above-mentioned smart authentication system is also proposed.

Description

Intelligent authentication system and electronic key

The invention relates to a smart authentication system and an electronic key thereof, and more particularly to a smart authentication system and an electronic key for transmitting encrypted information through an electronic paper display device.

The electronic paper display device is a new type of display device with high color contrast, high resolution, low power consumption, fast screen switching speed, and low manufacturing cost. In recent years, as display devices have gradually begun to develop in a lighter and thinner direction, electronic paper display devices have become a display device that can meet the needs of the general public. E-paper display devices are widely used in electronic readers (for example, e-books, electronic newspapers) or other electronic components (for example, electronic tags) due to their advantages such as lightness, durability, and low power consumption in compliance with energy conservation and environmental protection. Among the application fields of electronic tags, one of the most common identification technologies at present is, for example, Radio Frequency Identification (RFID) technology.

The radio frequency identification technology is equipped with an integrated circuit (IC) chip, which can read the information of the IC chip wirelessly through a reading device or a read-write device. However, some IC chips that need to be kept secret may be analyzed without permission and reproduce the confidential information stored in them.

At present, the commonly used smart electronic locks include common password locks, near field communication, radio frequency identification, Bluetooth communication identification, and biometric identification technologies. Near-field communication, radio frequency identification or Bluetooth identification may be stolen or cracked by communication methods because of being in an open environment, and biometrics are easy to misjudge, and stability has always been a tested part.

In view of this, embodiments of the present invention provide a smart authentication system and an electronic key thereof. This intelligent authentication system transmits encrypted messages through the electronic paper display device to perform the authentication operation between the electronic lock and the electronic key.

The smart authentication system of the present invention includes an electronic lock and an electronic key. The electronic key includes an electronic paper display device. The electronic key and electronic lock perform a two-phase authentication step. The two-phase authentication step includes a first-phase authentication step and a second-phase authentication step. After passing the first-stage authentication step, the electronic paper display device is driven. During the second-stage authentication step, the electronic key performs an authentication operation using a driven electronic paper display device and an electronic lock.

In an embodiment of the present invention, the electronic key further includes an induction coil. During the first-stage authentication step, the induction coil performs another authentication operation with the electronic lock by means of near field communication. After passing the first-stage authentication step, the induction coil outputs operating power to the electronic paper display device to drive the electronic paper display device.

In an embodiment of the invention, the electronic lock includes an image sensing device. The electronic lock uses an image sensing device and an electronic key for authentication operation. The electronic paper display device alternately displays the first image frame and the second image frame during the second-stage authentication step to transmit the encrypted message. The image sensing device receives the encrypted message during the second-stage authentication step, and decodes the encrypted message to obtain the information included in the encrypted message for the authentication operation.

In an embodiment of the present invention, the encrypted message includes a combination of the first image frame and the second image frame displayed by the electronic paper display device during the second-stage authentication step.

In an embodiment of the present invention, the electronic paper display device is driven by a driving signal. The driving signal includes a first frequency and a second frequency. The driving signal of the first frequency drives the electronic paper display device to transmit the encoded information in the encrypted message. The driving signal of the second frequency drives the electronic paper display device to transmit another encoded message in the encrypted message, and the above-mentioned first frequency is not equal to the second frequency.

In an embodiment of the present invention, the above-mentioned electronic paper display device is driven by a driving signal having a plurality of different frequencies to transmit one of a plurality of encoded messages in the encrypted message, wherein the electronic paper display device transmits The encoded message is determined based on the combination of different frequencies.

In an embodiment of the present invention, the image sensing device includes an image sensor and a data processor. The image sensor is used for receiving the encrypted message and outputting the encrypted message. The data processor is electrically connected to the image sensor. The data processor is used to decode the encrypted message to obtain the information included in the encrypted message.

In an embodiment of the invention, the image sensor transmits a sensing signal to the electronic paper display device. The electronic paper display device feeds back the sensing signal to the image sensor, so that the image sensor receives the encrypted message. The electronic paper display device displaying the first image frame absorbs at least part of the sensing signal. The electronic paper display device displaying the second image frame reflects at least a part of the sensing signal.

The electronic key of the invention is suitable for a smart authentication system. The electronic key includes an electronic paper display device. The electronic key is suitable for performing the first-stage authentication step and the second-stage authentication step with the smart authentication system. After the electronic key passes the first-stage authentication step, the electronic paper display device of the electronic key is driven. And, during the second-stage authentication step, the electronic key performs an authentication operation using the driven electronic paper display device and the smart authentication system.

In an embodiment of the present invention, the electronic key further includes an induction coil. During the first-stage authentication step, the induction coil performs another authentication operation with the smart authentication system by using near field communication. After the electronic key passes the first-stage authentication step, the induction coil outputs operating power to the electronic paper display device to drive the electronic paper display device.

Based on the above, in the embodiment of the present invention, the smart electronic lock is a smart authentication system having an electronic paper display device. The intelligent authentication system uses an electronic paper display device to alternately display different image frames, encrypts the information to be transmitted in the alternately displayed image frames to transmit encrypted information, and improves authentication security.

In order to make the above features and advantages of the present invention more comprehensible, embodiments are hereinafter described in detail with reference to the accompanying drawings.

Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. In addition, wherever possible, the same reference numbers are used in the drawings and embodiments to represent the same or similar parts.

FIG. 1 is a schematic diagram of an electronic paper display device according to an embodiment of the present invention. Referring to FIG. 1, in this embodiment, the electronic paper display device 100 includes an electronic paper display panel 110 and a display driver 120. The electronic paper display panel 110 is driven by the display driver 120 to display a first image frame or a second image frame. In the embodiment of the present invention, the electronic paper display panel 110 uses black display particles and white display particles as display media, respectively. In this embodiment, for example, the black image screen and the white image screen displayed on the electronic paper display panel 110 are taken as the first and second image screens, but the present invention is not limited thereto.

In this embodiment, the display driver 120 is electrically connected to the electronic paper display panel 110 for outputting a driving signal DS to the electronic paper display panel 110. In this embodiment, the display driver 120 may be provided with a message generator, and the message generator generates an internal message for the display driver 120 to output the driving signal DS to the electronic paper display panel 110. In an embodiment, the display driver 120 may also receive external messages and provide an output driving signal DS to the electronic paper display panel 110 according to the received external messages. The present invention does not limit the manner in which the display driver 120 generates and outputs the driving signal DS. Therefore, in this embodiment, the display driver 120 uses the driving signal DS to drive the electronic paper display panel 110 to alternately display the first image frame and the second image frame during message transmission to transmit the encrypted message.

Specifically, in this embodiment, the driving signal DS includes a first message level V1 and a second message level V2, as shown in FIG. 1, but the present invention is not limited thereto. The display driver 120 uses the driving signal DS of the first message level V1 to drive the electronic paper display panel 110 to display the first image frame. In addition, the display driver 120 drives the electronic paper display panel 110 to display the second image frame by using the driving signal DS of the second message level V2.

In detail, since the electronic paper display panel 110 of this embodiment uses black display particles and white display particles as a display medium, when the electronic paper display panel 110 is subjected to a negative electric field, a white image screen is displayed, and when the electronic paper is When the display panel 110 is subjected to a positive electric field, a black image is displayed. Therefore, the driving signal DS in this embodiment includes a first message level V1 and a second message level V2, where the first message level V1 is higher than The second message level V2, but the invention is not limited thereto. In this way, the display driver 120 can use the first message level V1 with a positive electric field to drive the electronic paper display panel 110 to display a first image frame (ie, a black image frame), and use the second message level with a negative electric field Bit V2 drives the electronic paper display panel 110 to display a second image frame (ie, a white image frame).

In other words, the electronic paper display panel 110 of this embodiment can display corresponding image frames according to the driving of different message levels of the driving signal DS. For details, please refer to FIG. 2A and FIG. 2B. FIG. 2A is a schematic diagram showing the first image screen displayed by the electronic paper display panel 110 driven by the driving signal DS according to an embodiment of the present invention. FIG. 2B is a schematic diagram showing an electronic paper display panel 110 driven by a driving signal DS according to an embodiment of the present invention to display a second image frame.

That is, the electronic paper display panel 110 can display corresponding image frames according to the driving of different message levels of the driving signal DS. When the driving signal DS output by the display driver 120 is a signal waveform having a series of a first message level V1 and a second message level V2 (the driving signal DS shown in FIG. 1), the electronic paper display panel 110 can display the first image frame and the second image frame alternately according to the first message level V1 and the second message level V2 of the driving signal DS. Therefore, the electronic paper display device 100 can display the characteristics of the corresponding image frame through the electronic paper display panel 110 according to the driving of the different signal levels of the driving signal DS for transmitting messages.

It is worth noting that, because the electronic paper display panel 110 has a millisecond level of screen switching speed, its speed of changing screens is very fast. Therefore, when the electronic paper display panel 110 uses different screens to exchange messages, this message will be difficult to copy. And stealing. In addition, the display driver 120 of this embodiment can output the encoded driving signal DS through the encoding process of the internal message or the received external message. Therefore, in this embodiment, the driving signal DS contains an encrypted message to be transmitted by the electronic paper display panel 110. In this way, during the message transmission, the driving of the driving signal DS, the combination of the first image frame and the second image frame displayed on the electronic paper display panel 110 includes encrypted information, so that the electronic paper display device 100 can pass through the electronic The paper display panel 110 alternately displays the first image frame and the second image frame to transmit the encrypted message, which will greatly improve the security of the transmitted message.

During the above encoding process, the display driver 120 can define an encoding method according to various requirements, for example, according to the length of time, the frequency of the frequency, or specific encoding rules (for example, according to the rules of the Morse password) to the internal message or the received The external message is encoded to encrypt the message to generate a driving signal DS containing the encrypted message, but the present invention is not limited to the above-mentioned encoding method.

In an embodiment, the encoding method adopted by the electronic paper display device 100 is, for example, defining different encoding messages by the level of the frequency. In this exemplary embodiment, the display driver 120 uses the driving signal DS of the first frequency to drive the electronic paper display panel 110 so that the electronic paper display panel 110 transmits the encoded information in the encrypted message. The display driver 120 uses the second-frequency driving signal DS to drive the electronic paper display panel 110, so that the electronic paper display panel 110 transmits another encoded message in the encrypted message. In this embodiment, the first frequency is not equal to the second frequency.

FIG. 3A is a waveform diagram of a driving signal corresponding to a coded message according to an embodiment of the present invention. Please refer to FIG. 3A. For example, in this embodiment, the display driver 120 drives the electronic paper display panel 110 with driving signals DS of different frequencies to encrypt different signals to be transmitted, such as signal 0 and signal 1. In this embodiment, the drive signal DS with a first frequency f ₁ , for example, encodes a signal 0, and the drive signal DS with a second frequency f ₂ , for example, encodes a signal 1. In this embodiment, the first frequency f _{1 is} not equal to the second frequency f ₂ . In this way, during the signal transmission period T1, when the driving signal DS of the electronic paper display panel 110 at the first frequency f ₁ is switched between the first message level and the second message level, it is driven by The frequency f ₁ alternately displays the first image frame and the second image frame, thereby transmitting the signal 0 in the encrypted message. In the present embodiment, during the signal transmission period T2, the electronic paper display panel 110 is driven by the driving signal DS of the second frequency f ₂ while switching between the first message level and the second message level to The second frequency f ₂ alternately displays the first image frame and the second image frame, thereby transmitting the signal 1 in the encrypted message. The waveform of the driving signal DS and the corresponding encoded information illustrated in FIG. 3A are only used for illustration, and the present invention is not limited thereto. In other embodiments, the electronic paper display device 100 may also encrypt numbers, English letters or other symbols to be transmitted according to different frequencies, which is not limited in the present invention.

In another embodiment of the present invention, the display driver 120 drives the electronic paper display panel 110 by using a plurality of driving signals DS with different frequencies, so that the electronic paper display panel 110 transmits one of a plurality of encoded messages in the encrypted message. In this exemplary embodiment, the encoded information transmitted by the electronic paper display panel 110 is determined according to a combination of different frequencies.

For example, FIG. 3B is a waveform diagram corresponding to a driving message corresponding to a coded message according to another embodiment of the present invention. In this embodiment, the display driver 120 drives the electronic paper display panel 110 with driving signals DS having different frequency combinations to encrypt different messages to be transmitted, such as the English letters A and B. Referring to FIG 3B, in the present embodiment, the signal transmitted during T3, the frequency of the drive signal DS is changed by the first frequency f ₁ is the second frequency f ₂ is obtained by coding a combination thereof, for example, posts for English letter A. During the signal transmission period T4, the frequency of the driving signal DS is changed from the first frequency f ₁ to the second frequency f ₂ , and then the second frequency f _{2 is} changed to the first frequency f _1. The coded message formed by a combination thereof represents, for example, English letters B. In this embodiment, the first frequency f _{1 is} also not equal to the second frequency f ₂ . Therefore, the electronic paper display panel 110 is driven by the driving signal DS to switch the displayed image frames according to the transformation order of the first frequency f ₁ and the second frequency f ₂ to transmit the English letters A and B in the encrypted message. The waveform of the driving signal DS and the corresponding encoded message illustrated in FIG. 3B are only used for illustration, and the present invention is not limited thereto. In other embodiments, the electronic paper display device 100 can also encrypt numbers, English letters, or other symbols to be transmitted according to more combinations of different frequencies, which is not limited in the present invention.

In the embodiment of the present invention, the electronic paper display device may first encode an internal message or a received external message to generate a driving signal including an encrypted message. After that, the electronic paper display panel can display the corresponding image screen according to the driving of different message levels of the driving signal. In this way, the electronic paper display device can alternately display different image frames during signal transmission to transmit encrypted messages. This can improve the confidentiality and security of message transmission.

On the other hand, using the above-mentioned electronic paper display device and its message transmission method, if the transmitted encrypted information needs to be read out, an image sensing device can be used to sense the image screen displayed by the electronic paper display device 100 to Decode encrypted messages. In the following embodiments, the architecture of a message transmission system with an electronic paper display device is further illustrated.

FIG. 4 is a schematic diagram of a message transfer system according to an embodiment of the present invention. Please refer to FIG. 4. The message transmission system 400 shown in FIG. 4 includes an electronic paper display device 410 and an image sensing device 420. For the electronic paper display device 410 and its electronic paper display panel 412, the display driver 414, and the driving signal DS, refer to the relevant descriptions of the electronic paper display device 100 and its electronic paper display panel 110, the display driver 120, and the driving signal DS shown in FIG. The analogy is not repeated here.

In this embodiment, the image sensing device 420 is configured to receive the encrypted message transmitted by the electronic paper display device 410 and decode the encrypted message to obtain the information included in the encrypted message. In this embodiment, the image sensing device 420 includes an image sensor 422 and a data processor 424. The image sensor 422 may be implemented by an infrared sensing device, a charge coupled device (CCD), or a complementary metal oxide semiconductor (CMOS) image sensing device. The present invention does not address this issue. Restricted. The image sensor 422 is used to receive the encrypted message transmitted by the electronic paper display device 410, and output the encrypted message to the back-end data processor 424.

In this embodiment, the data processor 424 is electrically connected to the image sensor 422 to decode the encrypted message to obtain the information included in the encrypted message. The data processor 424 is, for example, a central processing unit (CPU), or other programmable general purpose or special purpose microprocessor (Microprocessor), digital signal processor (DSP), or Programmable controller, Application Specific Integrated Circuits (ASIC), Programmable Logic Device (PLD) or other similar devices or a combination of these devices, which is not limited in the present invention. . The following examples illustrate the detailed steps of the entire message passing method.

FIG. 5 is a flowchart of a message transmission method according to an embodiment of the invention. Referring to FIG. 5, the method of this embodiment is applicable to at least the electronic paper display device 410 and the image sensing device 420 of FIG. 4. The detailed steps of the message transmission method in this case are described below with the electronic paper display device 410 and the image sensing device 420.

First, in step S510, at the transmitting end, the display driver 414 drives the electronic paper display panel 412 of the electronic paper display device 410 to alternately display the first image frame and the second image frame during message transmission, thereby transmitting the encrypted message. In this embodiment, similar to the embodiment of FIG. 1, the electronic paper display panel 412 also uses black display particles and white display particles as a display medium, but the present invention is not limited thereto. During the signal transmission, the electronic paper display device 410 may alternately display a first image frame composed of black display particles and a second image frame composed of white display particles, for example, to transmit encrypted information.

In step S520, at the receiving end, the message transmission system 400 receives the encrypted message by using the image sensing device 420, and decodes the encrypted message to obtain the information included in the encrypted message. In this embodiment, the image sensor 422 of the image sensing device 420, for example, transmits a sensing signal to the electronic paper display device 410, and the electronic paper display device 410 feeds back the sensing signal to the image sensor 422, so that the image is sensed. The detector 422 receives the encrypted message. It is worth noting that the electronic paper display device 410 displaying the first image frame absorbs at least part of the sensing signal, and the electronic paper display device 410 displaying the second image frame reflects at least part of the sensing signal.

Generally speaking, when an infrared sensing device detects an image displayed by an electronic paper display device, the black part of the image screen absorbs infrared rays (sensing signals) emitted by the infrared sensing device, and the white part of the image screen displays It reflects the infrared rays (sensing signals) emitted by the infrared sensing device. In this embodiment, for example, an infrared sensing device is used as the image sensor 422, but the present invention is not limited thereto. In this example, when the electronic paper display device 410 alternately displays a first image frame composed of black display particles and a second image frame composed of white display particles, infrared rays are transmitted to the electronic paper display device 410 through the infrared sensing device. To dynamically detect the encrypted message transmitted by the electronic paper display device 410. In this way, the electronic paper display device 410 displaying the first image frame (black) will absorb at least part of the infrared rays, and the electronic paper display device 410 displaying the second image frame (white) will reflect at least part of the infrared rays, so that infrared sensing The device can detect the encrypted message transmitted by the image screen displayed by the electronic paper display device 410 according to the feedback sensing signal.

After receiving the encrypted message, the image sensor 422 sends the encrypted message to the data processor 424 for decoding. The data processor 424 may analyze the image screen of the electronic paper display device 410 according to the encrypted message transmitted by the image sensor 422 and the corresponding encoding method (for example, the above-mentioned encoded message having different frequencies or a combination thereof, but the present invention is not limited thereto). To get the information DD included in the encrypted message. It is worth mentioning that the encrypted message transmitted through the messaging system 400 can be encrypted in advance using at least one algorithm. The image sensor 422, for example, has a corresponding back-end processing algorithm to decode the encrypted message to obtain the information DD included in the encrypted message. In this way, the encrypted message transmitted through the electronic paper display device 410 is not only difficult to copy and steal, but also increases the security of message transmission through multiple security measures.

In short, in the message transmission system and method of the embodiment of the present invention, the transmitting end can transmit the encrypted message through the electronic paper display device to alternately display the first image frame and the second image frame. At the receiving end, an infrared sensing device can be used to detect the image frames alternately displayed by the electronic paper display device to receive encrypted messages. After that, it is decoded by the data processor to obtain the information included in the encrypted message. In this way, not only the encrypted message transmitted through the electronic paper display device 410 is difficult to copy and steal, but also the security of message transmission can be increased through multiple security measures.

In addition, in other embodiments of the present invention, the electronic paper display panels 110 and 412 can also transmit encrypted messages through a display method different from the above. For example, the electronic paper display panel 412 may further include a plurality of display areas, so that the display driver 414 uses the driving signal DS to drive each display area of the electronic paper display panel 410 to alternately display the first image frame and the second image frame, thereby electronically The paper display panel transmits one of a plurality of encoded messages in the encrypted message. The encoded information transmitted by the electronic paper display panel 410 is determined according to, for example, a combination of the first image frame and the second image frame displayed in the display area. In addition, the signal transmission method and panel driving method of the electronic paper display device 410 of this exemplary embodiment can obtain sufficient teaching, suggestions, and implementation descriptions from the description of the embodiments of FIG. 1 to FIG. 3, and therefore will not be described again.

Specifically, please refer to FIG. 6, which is a schematic diagram of an electronic paper display panel including a plurality of display regions according to an embodiment of the present invention. In this embodiment, the electronic paper display panel 610 includes display areas A1, A2, A3, and A4. The electronic paper display panel 610 is driven by the driving signal DS, so that each of the display areas A1, A2, A3, and A4 displays a first image frame and a second image frame, respectively. For example, when the display areas A1 and A4 display the first image frame and the display areas A2 and A3 display the second image frame, the combination of the image frames may correspond to one of a plurality of encoded messages, and this encoded message may be used They are self-defined, as shown in FIG. 6, but the present invention is not limited thereto. In this way, the electronic paper display panel 610 of this embodiment can generate more types of encoded information by combining the first image frame and the second image frame displayed in each display area. This coded message can not only be defined by the user, but also can quickly switch the image screen through the electronic paper display panel 610, thereby improving the security and confidentiality of transmitting encrypted messages. In addition, the signal transmission method and panel driving method of the electronic paper display panel of this exemplary embodiment can be obtained from the description of the embodiments of FIG. 1 to FIG. 5 with sufficient teaching, suggestions, and implementation description, and will not be repeated here.

FIG. 7 is a schematic diagram of a smart authentication system according to an embodiment of the present invention. Please refer to FIG. 7. In this embodiment, the smart authentication system 700 includes an electronic lock 710 and an electronic key 720. The electronic lock 710 includes an electronic lock induction coil 712 and an image sensing device 714. The electronic key 720 includes an induction coil 722 and an electronic paper display device 724. An electronic lock induction coil 712 disposed in the electronic lock 710 and an induction coil 722 disposed in the electronic key 720 are used to perform a first-phase authentication operation. An induction coil 722 disposed on the electronic key 720 is coupled to the electronic paper display device 724. The induction coil 722 is used for transmitting the operating power OP to the electronic paper display device 724 during the first-stage authentication, so that the electronic paper display device 724 displays the encoded encrypted information. The image sensing device 714 disposed in the electronic lock 710 is in the second-stage authentication period. The image sensing device 714 receives and decodes the encrypted information displayed by the electronic paper display device 724. The authentication method of the smart authentication system 700 in this embodiment is detailed below.

In this embodiment, during the authentication of the electronic key 720 and the electronic lock 710, the electronic lock induction coil 712 disposed in the electronic lock 710 sends an authentication message to the induction coil 722 on the electronic key 720 to perform the first stage authentication. . The first phase of authentication can use technologies such as Near Field Communication (NFC) or Radio Frequency Identification (RFID) to perform the authentication and identification of the electronic lock 710 and the electronic key 720. If the first phase authentication is passed, the electronic lock induction coil 712 will transmit operating power OP to the induction coil 722 on the electronic key 720. This operating power OP is used to drive the electronic paper display device 724 disposed on the electronic key 720. Conversely, if the first-stage authentication is not passed, the electronic lock induction coil 712 will not transmit the operating power OP to the induction coil 722 on the electronic key 720. That is, the electronic lock 710 rejects the first-phase authentication request of the electronic key 720.

In other embodiments, the electronic key 720 may have a battery therein. If the first phase authentication is passed, the electronic lock 710 will provide a control signal to the electronic key 720, so that the operating power OP of the battery in the electronic key 720 drives the electronic paper display device 724.

In some embodiments, the electronic key 720 may contact a surface of the electronic lock 710. While the electronic key 720 is in contact with the electronic lock 710, the electronic lock induction coil 712 sends an authentication message to the induction coil 722 to perform the first-stage authentication identification. In some embodiments, the electronic key 720 is accessible without contacting the surface of the electronic lock 710. While the electronic key 720 is approaching without contacting the electronic lock 710, the electronic lock induction coil 712 sends an authentication message to the induction coil 722 for first-stage authentication and identification. In some embodiments, the electronic lock 710 has a keyhole, and the electronic lock induction coil 712 is disposed in the keyhole of the electronic lock 710. While the electronic key 720 is inserted into the keyhole of the electronic lock 710, the electronic lock induction coil 712 sends an authentication message to the induction coil 722 to perform the first-stage authentication and identification.

In some embodiments, if the electronic key 720 fails to pass the first-stage authentication, the electronic lock 710 may provide a warning tone or a warning signal to notify the user holding the electronic key 720 that the first-stage authentication has not passed.

Please refer to FIG. 7. In this embodiment, after the electronic paper display device 724 configured on the electronic key 720 is driven, the electronic paper display device 724 alternately displays a first image screen and a second image screen during the second-stage authentication step. The multiple encoded messages are combined to deliver the encrypted message ES. The encrypted message ES is information set by the user, such as a password or an identification code, and the message data generated by encoding is encrypted. In some embodiments, the user can set information on the electronic lock 710, and after the setting, the electronic lock 710 performs encoding and encryption. The set information is encrypted according to the encoding method selected by the system or the user, and is encrypted into an encrypted message ES. Then, using near field communication or radio frequency identification technology, the encrypted message ES generated by the electronic lock 710 is transmitted to the electronic key 720 that has passed the first-stage authentication and the second-stage authentication. In some embodiments, the electronic key 720 passing the first-stage authentication and the second-stage authentication can contact the electronic lock 710 to obtain a driving signal containing the encrypted message ES. In some embodiments, the electronic key 720 passing the first-stage authentication and the second-stage authentication can be accessed without contacting the electronic lock 710 to obtain a driving signal containing the encrypted message ES. In some embodiments, the electronic lock 710 has a keyhole, and the electronic lock induction coil 712 is disposed in the keyhole of the electronic lock 710. While the electronic key 720 is inserted into the keyhole of the electronic lock 710, the electronic key 720 that passed the first-stage authentication and the second-stage authentication can be inserted into the keyhole of the electronic lock 710 to obtain a drive signal containing the encrypted message ES .

In some embodiments, the electronic paper display device 724 may have an encoding function, and may encode an internal message or a received external message. That is, the electronic paper display device 724 can encode the information received by the electronic key 720 from the user's setting or the information stored in the electronic lock (such as a password or an identification code) to generate an encrypted message ES. The invention is not limited to this.

In some embodiments, the user may set information such as a password or an identification code on a mobile phone, a computer, or an information processing interface, and set the set The information is transmitted to the electronic lock 710. The electronic lock 710 is then transmitted to the electronic key 720 that can pass the first phase authentication and the second phase authentication through the transmission between the electronic lock induction coil 712 and the induction coil 722 through radio frequency identification or near field communication. Limited.

In some embodiments, the electronic paper display device 724 configured on the electronic key 720 can increase the complexity of the password or encoding method according to the resolution of the electronic paper display device 724 itself, so that it can receive more complex encrypted messages ES. It also displays more complex coded message combinations. In some embodiments, the electronic paper display device 724 may further choose to use multiple switching of multiple encoded messages during the second phase of authentication, so that the encoded message including the encrypted message ES is displayed as a dynamic image, further increasing the encrypted message. ES display complexity. In other words, the smart authentication system 700 can increase the complexity of setting and encoding the encrypted message ES according to the high screen resolution and high screen switching speed of the electronic paper display device 724, and further improve the smart authentication system 700 in the second place. The security of the message during the phase authentication.

Please refer to FIG. 7. In this embodiment, the image sensing device 714 disposed on the electronic lock 710 includes an image sensor 715 and a data processor 717. The image sensor 715 is configured to receive the encrypted message ES transmitted from the electronic paper display device 724 during the second-stage authentication, and output the encrypted message ES to the data processor 717. The data processor 717 is configured to decode the encrypted message ES from the image sensor 715 during the second-stage authentication to obtain information, such as a password or an identification code, included in the encrypted message ES before encoding and encryption. The data processor 717 compares the information obtained after decoding with the information stored on the electronic lock 710. If the information obtained after decoding by the data processor 717 matches the information stored on the electronic lock 710, it means that the electronic key 720 requesting authentication has passed the first-stage authentication and the second-stage authentication, and the data processor 717 will be turned on. Electronic lock 710. Conversely, if the second stage authentication is not passed, the electronic lock 710 will not be turned on. That is, the electronic lock 710 rejects the second-phase authentication request of the electronic key 720. In some embodiments, the image sensing device 714 can be disposed in the keyhole of the electronic lock 710 or on the surface of the electronic lock 710 according to the authentication method between the electronic lock 710 and the electronic key 720. The invention is not limited to this. The signal transmission method and panel driving method of the electronic paper display panel in this exemplary embodiment can be obtained from the description of the embodiments of FIGS. 1 to 6 with sufficient teaching, suggestions, and implementation description, and therefore will not be described repeatedly.

In some embodiments, if the electronic key 720 fails to pass the second-stage authentication, the electronic lock 710 may provide a warning tone or a warning signal to notify the user holding the electronic key 720 that he has failed the second-stage authentication.

After the electronic key 720 requesting authentication passes the first-stage authentication and the second-stage authentication, the screen on the electronic paper display device 724 is replaced with a preset reset screen according to a reset signal preset in the smart authentication system. The preset reset signal can also be set by the user, and the invention is not limited thereto.

In summary, the smart authentication system provided in the embodiment of the present invention includes a driving signal including a password or an identification code to be transmitted to drive the electronic paper display panel to quickly and alternately display different image frames during signal transmission To pass encrypted messages. While the electronic paper display device switches the image frames, the image sensing device detects the image frames alternately displayed by the electronic paper display device to receive and decode the encrypted message to obtain the information included in the encrypted message. In addition, the electronic paper display panel may further include a plurality of display areas to generate more types of encoded information. Therefore, the encrypted message transmitted through the electronic paper display device is difficult to be copied and stolen, and the security measures of multi-stage authentication can be adopted to increase the security of message transmission.

Although the present invention has been disclosed as above with the examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some modifications and retouching without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be determined by the scope of the attached patent application.

100, 410, 724‧‧‧ electronic paper display device

110, 412, 610‧‧‧ electronic paper display panel

120, 414‧‧‧ display driver

400‧‧‧ messaging system

420, 714‧‧‧Image sensing device

422, 715‧‧‧Image Sensor

424, 717‧‧‧ Data Processor

f ₁ , f ₂ ‧‧‧ frequency

A1, A2, A3, A4‧‧‧ display area

T1, T2, T3, T4 ‧‧‧ signal transmission period

DS‧‧‧Drive Signal

DD‧‧‧Information

V1‧‧‧ First Message Level

V2‧‧‧Second Message Level

Steps of S510, S520‧‧‧message delivery method

700‧‧‧Smart Authentication System

710‧‧‧Electronic lock

712‧‧‧Electronic lock induction coil

720‧‧‧electronic key

722‧‧‧Induction coil

OP‧‧‧Operating Power

ES‧‧‧ Encrypted Message

FIG. 1 is a schematic diagram of an electronic paper display device according to an embodiment of the present invention. FIG. 2A is a schematic diagram showing an electronic paper display panel driven by a driving signal to display a first image frame according to an embodiment of the present invention. FIG. 2B is a schematic diagram showing an electronic paper display panel driven by a driving signal to display a second image frame according to an embodiment of the present invention. FIG. 3A is a waveform diagram of a driving signal corresponding to a coded message according to an embodiment of the present invention. FIG. 3B is a waveform diagram of a driving signal corresponding to a coded message according to another embodiment of the present invention. FIG. 4 is a schematic diagram of a message transfer system according to an embodiment of the present invention. FIG. 5 is a flowchart of a message transmission method according to an embodiment of the invention. FIG. 6 is a schematic diagram illustrating an electronic paper display panel including a plurality of display areas according to an embodiment of the present invention. FIG. 7 is a schematic diagram of a smart authentication system according to an embodiment of the present invention.

Claims (10)

An intelligent authentication system includes: an electronic lock; and an electronic key including an electronic paper display device, the electronic key is adapted to perform a two-phase authentication step with the electronic lock, wherein the two-phase authentication step includes a first phase The authentication step and a second-stage authentication step, wherein the electronic paper display device is driven after passing the first-stage authentication step, and during the second-stage authentication step, the electronic key displays using the driven electronic paper. The device performs an authentication operation with the electronic lock, wherein the electronic lock includes an image sensing device, and the electronic lock uses the image sensing device and the electronic key to perform the authentication operation. The smart authentication system according to item 1 of the scope of patent application, wherein the electronic key further includes: an induction coil, and during the first-stage authentication step, another authentication is performed with the electronic lock by using a near field communication method. Operation. After passing the first-stage authentication step, the induction coil outputs an operation power to the electronic paper display device to drive the electronic paper display device. The smart authentication system according to item 1 of the scope of patent application, wherein the electronic paper display device alternately displays a first image frame and a second image frame during the second phase authentication step to transmit an encrypted message, and The image sensing device receives the encrypted message during the second-stage authentication step, and decodes the encrypted message to obtain the information included in the encrypted message for the authentication operation. The intelligent authentication system according to item 3 of the patent application scope, wherein the encrypted message includes a combination of the first image frame and the second image frame displayed by the electronic paper display device during the second-stage authentication step. The smart authentication system according to item 3 of the scope of patent application, wherein the electronic paper display device is driven by a driving signal, the driving signal includes a first frequency and a second frequency, and the driving of the first frequency The signal drives the electronic paper display device to transmit an encoded message in the encrypted message, and the driving signal of the second frequency drives the electronic paper display device to transmit another encoded message in the encrypted message, wherein the first frequency is not equal to The second frequency. The smart authentication system according to item 3 of the scope of patent application, wherein the electronic paper display device is driven by the driving signals having a plurality of different frequencies to transmit one of a plurality of encoded messages in the encrypted message, The encoded messages transmitted by the electronic paper display device are determined according to the combinations of the different frequencies. The intelligent authentication system according to item 3 of the scope of patent application, wherein the image sensing device includes: an image sensor for receiving the encrypted message and outputting the encrypted message; and a data processor, electrically Connected to the image sensor to decode the encrypted message to obtain the information included in the encrypted message. The smart authentication system according to item 7 of the scope of patent application, wherein the image sensor transmits a sensing signal to the electronic paper display device, and the electronic paper display device feeds back the sensing signal to the image sensor To allow the image sensor to receive the encrypted message, wherein the electronic paper display device displaying the first image frame absorbs at least part of the sensing signal, and the electronic paper display device displaying the second image frame reflects at least a portion The sensing signal. An electronic key is suitable for a smart authentication system. The electronic key includes: an electronic paper display device. The electronic key is suitable for performing a first-stage authentication step and a second-stage authentication step with the smart authentication system. After passing the first-stage authentication step, the electronic paper display device is driven, and during the second-stage authentication step, the electronic key uses the driven electronic paper display device to perform an authentication operation with the smart authentication system. Wherein the electronic paper display device alternately displays a first image frame and a second image frame to transmit an encrypted message during the second-stage authentication step, and the smart authentication system senses the information transmitted by the electronic paper display device. The encrypted message is decoded to obtain the information included in the encrypted message to perform the authentication operation. The electronic key described in item 9 of the scope of patent application, further includes: an induction coil, during the first-stage authentication step, performing another authentication operation with the smart authentication system by using a near field communication method, in which After passing the first-stage authentication step, the induction coil outputs an operating power to the electronic paper display device to drive the electronic paper display device.