Intelligent identity verification method and system based on sound wave signal and display equipment

Abstract

The invention discloses an intelligent identity verification method and system based on a sound wave signal and display equipment, and the method comprises the following steps: when receiving a sound wave login signal, obtaining the authentication information of a sound wave login terminal according to the sound wave login signal, the authentication information comprising the position information and account information of the sound wave login terminal; checking the position information and account information of the sound wave login terminal, if the checking is passed, controlling a display device to execute login operation, and if the checking is failed, controlling the display device to display a login interface; after the display equipment executes login operation, the position of a sound wave login terminal is monitored according to the sound wave login signal, and when the sound wave login terminal leaves the login range and exceeds preset time, the display equipment is controlled to execute logout operation. According to the invention, the convenience and safety of identity verification are improved, and the user experience is optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of educational display equipment, and in particular to an intelligent identity authentication method, system and display equipment based on sound wave signals. Background Art

[0002] With the development of information technology, educational display devices such as electronic blackboards and interactive whiteboards have gradually become popular in modern classrooms and have become one of the important tools for improving teaching quality and efficiency. In practical applications, most educational display devices rely on manual login to complete the switching of user accounts. This login method usually involves teachers entering usernames and passwords on the device or performing identity authentication by scanning QR codes. Although this method can meet the needs of personalized teaching environments to a certain extent, teachers need to spend time manually logging in before each course starts and manually logging out after the course ends. This process not only increases the workload of teachers, but also in a teaching environment with multiple shifts and rapid rotation, frequent manual operations seriously affect the continuity and efficiency of teaching activities. Secondly, due to the lack of an effective automatic logout mechanism, teachers often forget to log out of their personal accounts due to negligence, which may not only cause other teachers to be unable to use the equipment in a timely manner, but also cause security risks such as personal information leakage. Summary of the invention

[0003] The main purpose of the present invention is to provide an intelligent identity authentication method, device and system based on sound wave signals, aiming to solve the technical problems of low efficiency and insufficient security in user account management of educational display devices in the background technology.

[0004] To achieve the above object, the present invention provides a first aspect of an intelligent identity authentication method based on sound wave signals, comprising the following steps:

[0005] Step S100: when receiving the sound wave login signal, obtaining authentication information of the sound wave login terminal according to the sound wave login signal, wherein the authentication information includes location information and account information of the sound wave login terminal;

[0006] Step S200: Checking the location information and account information of the acoustic wave login terminal. If the verification is successful, controlling the display device to perform a login operation. If the verification fails, controlling the display device to display a login interface.

[0007] Step S300: After the display device performs the login operation, the location of the acoustic wave login terminal is monitored according to the acoustic wave login signal. When the acoustic wave login terminal leaves the login range and exceeds a preset time, the display device is controlled to perform a logout operation.

[0008] Furthermore, in step S200, the step of verifying the location information of the acoustic wave login terminal includes:

[0009] The display device obtains the sending time of the sound wave login signal;

[0010] Calculating the distance between the display device and the acoustic wave login terminal according to the sending time, receiving time and acoustic wave transmission speed of the acoustic wave login signal;

[0011] It is determined whether the distance between the display device and the mobile terminal is not greater than a login distance of the display device.

[0012] Furthermore, in step S200, the step of verifying the location information of the acoustic wave login terminal further includes:

[0013] If the display device uses multiple sound wave receivers to receive sound wave signals, a multi-point positioning algorithm is used to determine the specific location of the sound wave login terminal according to the location information of each sound wave receiver and the distance between each sound wave receiver and the sound wave login terminal;

[0014] Determine whether the location of the acoustic wave login terminal is within a preset login area.

[0015] Furthermore, in step S200, the step of verifying the location information of the acoustic wave login terminal further includes:

[0016] Acquire auxiliary connection information of the acoustic wave login terminal from the acoustic wave login signal, wherein the auxiliary connection information includes Bluetooth device information and Wi-Fi access point information;

[0017] Calculating the distance between the acoustic wave login terminal and the display device according to the auxiliary connection information;

[0018] Combining the distance calculated according to the acoustic wave signal and the distance calculated according to the auxiliary connection information, obtaining the location of the acoustic wave login terminal;

[0019] Determine whether the location of the acoustic wave login terminal is within a preset login area.

[0020] Further, the step of obtaining the location of the acoustic wave login terminal by combining the distance calculated according to the acoustic wave signal and the distance calculated according to the auxiliary connection information includes:

[0021] Calculating a first position of the acoustic wave login terminal according to the acoustic wave signal;

[0022] Calculating a second position of the acoustic wave login terminal according to the auxiliary connection information;

[0023] The first position and the second position are fused by weighted averaging method or Kalman filtering method to determine the final position of the acoustic wave login terminal.

[0024] Furthermore, the intelligent identity authentication method based on sound wave signals also includes:

[0025] When the display device cannot receive the sound wave signal, obtaining a second sound wave collecting device around the display device whose distance from the display device is not greater than a preset threshold;

[0026] The display device receives the sound wave login signal through the second sound wave collecting device.

[0027] Furthermore, the intelligent identity authentication method based on sound wave signals also includes:

[0028] In response to the user's sound wave login verification operation, the display device initiates a wake-up request to the sound wave login terminal, so that the sound wave login terminal sends a sound wave login signal.

[0029] Furthermore, in step S100, the step of receiving the acoustic wave login signal includes:

[0030] Collect sound wave signals in real time;

[0031] Identify potential acoustic logging signals based on spectrum analysis and pre-set frequency ranges;

[0032] Parse the coding information in the potential sound wave login signal, and determine whether it is a valid sound wave login signal according to the coding information. If so, confirm that the sound wave login signal of the sound wave login terminal is received, otherwise continue to monitor the sound wave signal.

[0033] A second aspect of the present invention provides an intelligent identity authentication system based on sound wave signals, comprising:

[0034] A confirmation module, configured to obtain authentication information of the acoustic wave login terminal according to the acoustic wave login signal when receiving the acoustic wave login signal, wherein the authentication information includes location information and account information of the acoustic wave login terminal;

[0035] A verification module, used to verify the location information and account information of the acoustic wave login terminal, and if the verification passes, control the display device to perform a login operation; if the verification fails, control the display device to display a login interface;

[0036] The logout module is used to monitor the position of the acoustic wave login terminal according to the acoustic wave login signal after the display device performs the login operation, and when the acoustic wave login terminal leaves the login range and exceeds a preset time threshold, control the display device to perform the logout operation.

[0037] The third aspect of the present invention provides a display device, comprising a display, a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the intelligent identity authentication method based on acoustic wave signals as described in the first aspect of the present invention when executing the computer program.

[0038] The fourth aspect of the present invention provides a computer-readable storage medium, on which is stored an intelligent identity authentication program based on sound wave signals, which, when executed by a processor, implements the steps of the intelligent identity authentication method based on sound wave signals as described in the first aspect.

[0039] Compared with the prior art, the beneficial effects of the present invention include at least:

[0040] The present invention provides an intelligent identity authentication method, a display device and a system based on sound wave signals, wherein the intelligent identity authentication method based on sound wave signals collects sound wave signals in real time, identifies potential sound wave login signals based on spectrum analysis and a preset frequency range, and combines the location information of the sound wave login terminal to ensure that the user can perform identity authentication only when he is within the login range, thereby improving the security of the system; by parsing the identity authentication information in the sound wave login signal and performing comprehensive authority verification in multiple aspects, the accuracy and security of the identity authentication are ensured; finally, according to the verification result, a corresponding interface is displayed on the display device, thereby realizing automatic login of the user. Compared with the traditional method of manually inputting a user name and password and scanning a QR code, the login time is greatly shortened and the user experience is improved; at the same time, by monitoring the position change of the sound wave login terminal, when the user leaves the login range and exceeds the preset time threshold, the user is automatically set to a logout state, thereby ensuring the security of system resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. The purpose, functional features and advantages of the present invention will be further explained in combination with the embodiments and with reference to the drawings.

[0042] Figure 1 A flow chart of an intelligent identity authentication method based on sound wave signals provided by an embodiment of the present invention;

[0043] Figure 2 A flow chart of a method for verifying the location information of a sound wave login terminal provided in an embodiment of the present invention;

[0044] Figure 3 A flow chart of another method for verifying the location information of a sound wave login terminal provided by an embodiment of the present invention;

[0045] Figure 4 A flow chart of another method for verifying the location information of a sound wave login terminal provided by an embodiment of the present invention;

[0046] Figure 5 A flow chart of a method for determining the location of a sound wave login terminal by integrating multiple positioning methods provided in an embodiment of the present invention;

[0047] Figure 6 A flowchart of a method for collaboratively acquiring sound wave signals by multiple devices provided in an embodiment of the present invention;

[0048] Figure 7 A flow chart of a method for confirming receipt of an acoustic login signal provided by an embodiment of the present invention;

[0049] Figure 8 A schematic diagram of an intelligent identity authentication system based on sound wave signals provided in an embodiment of the present invention.

[0050] Fig. 9 A schematic diagram of a display device for intelligent identity authentication based on sound wave signals provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0053] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0054] In view of this, the main purpose of the present invention is to provide an intelligent identity authentication method, device and system based on sound wave signals, aiming to solve the technical problems of low efficiency and insufficient security in user account management of educational display devices in the background technology.

[0055] To achieve the above object, the present invention provides a first aspect of an intelligent identity authentication method based on sound wave signals, comprising the following steps:

[0056] Step S100: when receiving the sound wave login signal, obtaining authentication information of the sound wave login terminal according to the sound wave login signal, wherein the authentication information includes location information and account information of the sound wave login terminal;

[0057] Step S200: Checking the location information and account information of the acoustic wave login terminal. If the verification is successful, controlling the display device to perform a login operation. If the verification fails, controlling the display device to display a login interface.

[0058] Step S300: After the display device performs the login operation, the location of the acoustic wave login terminal is monitored according to the acoustic wave login signal. When the acoustic wave login terminal leaves the login range and exceeds a preset time, the display device is controlled to perform a logout operation.

[0059] Specifically, the method of the present invention at least includes a sound wave login terminal, a display device and one or more sound wave receivers. Among them, the sound wave login terminal can be a specially designed hardware device or a mobile device such as a smart phone, a tablet computer, etc. with a sound wave transmission function; the display device includes but is not limited to educational display devices such as an electronic blackboard and an interactive whiteboard; the sound wave receiver is responsible for receiving the sound wave signal from the sound wave login terminal and transmitting the signal to the display device for processing. After the user starts the login operation, the sound wave login terminal will transmit a sound wave login signal including user identity information and a timestamp to the surrounding space. The display device and its associated sound wave receiver monitor the sound wave signal in the environment in real time. When a sound wave signal that meets the preset conditions is detected, the display device first parses the coded information in the signal to confirm that it is a valid sound wave login signal. Then, the display device verifies the location information and identity information of the received sound wave login signal to ensure that the location of the sound wave login terminal is within the preset login area and the user identity information carried is valid. If both the location information and the identity information are verified, the display device will automatically log in and switch to the personalized work interface of the user to display the corresponding teaching resources and setting options. If any of the checks fail, the display device will display an error message on the screen and require the user to provide additional authentication information, such as entering a password or trying to log in again through fingerprint recognition. After logging in, the display device continuously monitors the location changes of the acoustic login terminal and updates the location information by regularly receiving the heartbeat signal sent by the acoustic login terminal. If the acoustic login terminal leaves the login range for more than the preset time threshold (for example, 5 minutes), the display device will automatically log out of the current user's login state and return to the initial login interface to wait for the next login operation, thereby protecting user privacy and preventing unauthorized third parties from accessing teaching materials. At the same time, it ensures that different teachers can smoothly switch to use the device during multi-shift teaching activities.

[0060] Furthermore, in step S200, the step of verifying the location information of the acoustic wave login terminal includes:

[0061] The display device obtains the sending time of the sound wave login signal;

[0062] Calculating the distance between the display device and the acoustic wave login terminal according to the sending time, receiving time and acoustic wave transmission speed of the acoustic wave login signal;

[0063] It is determined whether the distance between the display device and the mobile terminal is not greater than a login distance of the display device.

[0064] Specifically, when the acoustic wave login terminal generates an acoustic wave login signal, a timestamp is embedded to indicate the sending time of the signal. After the display device receives the acoustic wave login signal, it parses the timestamp to obtain the sending time. The display device records the time when the acoustic wave login signal is received, that is, the receiving time. The time difference of the acoustic wave login signal from the acoustic wave login terminal to the display device is calculated, that is, the receiving time minus the sending time. According to the acoustic wave transmission speed (about 343 meters / second under standard atmospheric conditions) and the time difference, the distance between the acoustic wave login terminal and the display device is calculated. The display device pre-sets a login distance (for example, 10 meters). If the calculated distance is less than or equal to the login distance, it is considered that the acoustic wave login terminal is within the login range and the position check passes. If the calculated distance is greater than the login distance, it is considered that the acoustic wave login terminal is not within the login range and the position check fails. By accurately calculating the distance between the acoustic wave login terminal and the display device, it is ensured that only users within the login range can complete the login operation, effectively preventing login attempts by illegal users and improving the security of the system. Through distance verification, the system can automatically manage the login and logout of user accounts, avoiding security risks caused by teachers forgetting to log out, while also reducing the operational burden on teachers.

[0065] Furthermore, in step S200, the step of verifying the location information of the acoustic wave login terminal further includes:

[0066] If the display device uses multiple sound wave receivers to receive sound wave signals, a multi-point positioning algorithm is used to determine the specific location of the sound wave login terminal according to the location information of each sound wave receiver and the distance between each sound wave receiver and the sound wave login terminal;

[0067] Determine whether the location of the acoustic wave login terminal is within a preset login area.

[0068] Specifically, the display device is equipped with multiple sound wave receivers, which are distributed in different positions and are used to receive the sound wave signal emitted by the sound wave login terminal. Each sound wave receiver records the time when the sound wave login signal is received, that is, the receiving time. For each sound wave receiver, the time difference of the sound wave login signal from the sound wave login terminal to the receiver is calculated, that is, the receiving time minus the sending time. According to the sound wave transmission speed and the time difference, the distance between the sound wave login terminal and each sound wave receiver is calculated. Combined with the distance data and position information of each sound wave receiver, a multi-point positioning algorithm (such as a triangulation positioning method or a multi-point positioning algorithm) is used to determine the specific position of the sound wave login terminal. The display device pre-sets a login area, such as a square area of ​​8 meters * 10 meters centered on the display device. Compare the calculated position of the sound wave login terminal with the login area: if the position of the sound wave login terminal is within the login area, the position check passes; if the position of the sound wave login terminal is not within the login area, the position check fails. Using multiple sound wave receivers and a multi-point positioning algorithm, the position of the sound wave login terminal can be determined more accurately, avoiding the possible errors of a single receiver and improving the accuracy of positioning. The multi-point positioning algorithm is not affected by the failure of a single receiver. Even if a problem occurs in one receiver, other receivers can still provide valid positioning data, which enhances the robustness and reliability of the system.

[0069] Furthermore, in step S200, the step of verifying the location information of the acoustic wave login terminal further includes:

[0070] Acquire auxiliary connection information of the acoustic wave login terminal from the acoustic wave login signal, wherein the auxiliary connection information includes Bluetooth device information and Wi-Fi access point information;

[0071] Calculating the distance between the acoustic wave login terminal and the display device according to the auxiliary connection information;

[0072] Combining the distance calculated according to the acoustic wave signal and the distance calculated according to the auxiliary connection information, obtaining the location of the acoustic wave login terminal;

[0073] Determine whether the location of the acoustic wave login terminal is within a preset login area.

[0074] Specifically, the sound wave login signal not only contains a timestamp, but also contains auxiliary connection information, such as Bluetooth device information and Wi-Fi access point information, to help further accurately locate the position of the sound wave login terminal. Wherein, the Bluetooth device information includes the MAC address and signal strength of the nearby Bluetooth device, and the Wi-Fi access point information includes the SSID and signal strength of the nearby Wi-Fi access point. The display device calculates the distance between the sound wave login terminal and the display device according to the sending time, receiving time and sound wave transmission speed of the sound wave login signal. Then, using the Bluetooth device information and Wi-Fi access point information, the distance between the sound wave login terminal and these devices is calculated by the location data of the known Bluetooth devices and Wi-Fi access points, and the relationship formula between the signal strength and the distance (such as the RSSI model) can be used to estimate the distance. The distance calculated by the sound wave signal and the distance calculated by the auxiliary connection information are combined, and the specific position of the sound wave login terminal is determined using a multi-point positioning algorithm. Finally, it is determined whether the position of the sound wave login terminal is within the preset login area. If so, the verification is passed, otherwise, the verification fails. By combining the acoustic signal and auxiliary connection information (Bluetooth device information and Wi-Fi access point information), the location of the acoustic login terminal can be determined more accurately, avoiding the errors that may exist in a single signal source and improving the accuracy of positioning. Auxiliary connection information provides an additional source of positioning data. Even if a signal source has a problem, other signal sources can still provide valid positioning data, enhancing the robustness and reliability of the system.

[0075] Further, the step of obtaining the location of the acoustic wave login terminal by combining the distance calculated according to the acoustic wave signal and the distance calculated according to the auxiliary connection information includes:

[0076] Calculating a first position of the acoustic wave login terminal according to the acoustic wave signal;

[0077] Calculating a second position of the acoustic wave login terminal according to the auxiliary connection information;

[0078] The first position and the second position are fused by weighted averaging method or Kalman filtering method to determine the final position of the acoustic wave login terminal.

[0079] Specifically, when the display device is connected to multiple sound wave receivers, and there are multiple auxiliary positioning devices (such as multiple Bluetooth devices, multiple Wi-Fi access points), a multi-point positioning algorithm (such as triangulation positioning method or multi-point positioning algorithm) can be used to combine the distance data and location information of multiple sound wave receivers to determine the first position of the sound wave login terminal. The multi-point positioning algorithm is used to combine the distance data and location information of multiple Bluetooth devices to determine the second position (Bluetooth position) of the sound wave login terminal; the multi-point positioning algorithm is used to combine the distance data and location information of multiple Wi-Fi access points to determine the second position (Wi-Fi position) of the sound wave login terminal. Finally, the first position and the second position are fused by weighted average method or Kalman filtering method. By combining multiple auxiliary connection information (Bluetooth, Wi-Fi, etc.), the position of the sound wave login terminal can be determined more accurately, avoiding the possible errors of a single signal source, and improving the accuracy of positioning. The weight can be dynamically adjusted by using weighted average method or Kalman filtering method to fuse position data, and the position estimation is optimized according to the uncertainty of the measurement data, further improving the accuracy and reliability of positioning.

[0080] Understandably, in addition to Wi-Fi and Bluetooth, there are several other positioning protocols and technologies that can be used to improve the positioning accuracy of acoustic signals and the reliability of the system. The following are some common alternative positioning protocols and technologies: Ultra-Wideband (UWB) is a short-range wireless communication technology with high bandwidth and low power consumption. UWB signals can transmit a large amount of data in a very short time, which can achieve very accurate ranging and positioning. UWB can be used for indoor positioning with an accuracy of up to centimeters, which is very suitable for scenarios that require high-precision positioning. Zigbee is a low-power, short-range wireless communication technology that is often used for communication between IoT devices. Zigbee networks can support multi-hop routing and can be used for indoor positioning. The position is calculated by the signal strength and time difference of multiple Zigbee nodes. LoRa (Long Range) is a long-range, low-power wireless communication technology suitable for wide area network applications. It has strong penetration and long-distance transmission capabilities and can also be used in some indoor environments, especially in scenarios that require long-distance transmission.

[0081] Furthermore, the intelligent identity authentication method based on sound wave signals also includes:

[0082] When the display device cannot receive the sound wave signal, obtaining a second sound wave collecting device around the display device whose distance from the display device is not greater than a preset threshold;

[0083] The display device receives the sound wave login signal through the second sound wave collecting device.

[0084] Specifically, the display device monitors the sound wave signal in the environment in real time. If a valid sound wave login signal is not received within a predetermined time, the system will enter the second mode and start searching for the second sound wave collection device in the surrounding area. These devices can be other display devices, dedicated sound wave receivers or other devices that support sound wave signal reception. The display device communicates with these second sound wave collection devices through a network connection (such as Wi-Fi, Ethernet, etc.), obtains their location information and status, and filters out the second sound wave collection device whose distance from itself is not greater than the preset threshold. The preset threshold can be adjusted according to the actual application scenario, such as 10 meters. The display device selects the second sound wave collection device according to the preset conditions, sends a request to the selected second sound wave collection device, and requires these devices to monitor and forward the sound wave signal. After the second sound wave collection device receives the sound wave signal, it forwards it to the display device, and after the display device receives the forwarded sound wave login signal, it continues to perform subsequent verification and position calculation steps. By introducing the second sound wave collection device, the system can continue to authenticate identity using a backup device when the main device cannot receive the sound wave signal, thereby improving the robustness and reliability of the system. Secondly, multiple second acoustic wave collection devices can cover a larger area, ensuring that the acoustic wave login terminal can be effectively identified at any location in the classroom.

[0085] Furthermore, the intelligent identity authentication method based on sound wave signals also includes:

[0086] In response to the user's sound wave login verification operation, the display device initiates a wake-up request to the sound wave login terminal, so that the sound wave login terminal sends a sound wave login signal.

[0087] Specifically, the user can initiate the sound wave login verification operation on the display device through a touch screen, a button or other interactive methods. After the display device receives the login request that the user needs to perform the sound wave login verification, a wake-up request message is generated. This message contains the unique identifier of the display device, a timestamp and other necessary information, and the wake-up request is sent to the sound wave login terminal through a pre-established communication channel (such as Bluetooth, Wi-Fi or a dedicated wireless protocol). The choice of the communication channel depends on the specific application scenario and technical conditions. After receiving the wake-up request, the sound wave login terminal wakes up from a low power mode or a dormant state, and transmits a sound wave login signal in the form of sound waves within a specific frequency range through a built-in speaker. It is understandable that the user can set a specific time period on the sound wave login terminal or display device, such as between 8:00 and 8:10 in the morning and between 13:00 and 13:10 in the afternoon. These time periods are usually the time periods when users enter the classroom. During the time period preset by the user, the sound wave login terminal will automatically send a sound wave login signal without manual operation by the user. The sound wave login terminal can store the user's login information and time settings, activate and send the sound wave login signal at a fixed time; or, during the time period preset by the user, the display device will automatically send a wake-up request to the sound wave login terminal, so that the sound wave login terminal sends a sound wave login signal. The display device can pre-configure the user's login information and time settings, and send a wake-up request at a fixed time. By initiating a wake-up request to the sound wave login terminal through the display device, it is ensured that the sound wave login terminal only sends a sound wave login signal when needed. When the sound wave login terminal does not receive a wake-up request, it can remain in a low power consumption mode or a dormant state, further saving energy.

[0088] Further, the step of confirming receipt of the sound wave login signal from the sound wave login terminal includes:

[0089] Collect sound wave signals in real time;

[0090] Identify potential acoustic logging signals based on spectrum analysis and pre-set frequency ranges;

[0091] Parse the coding information in the potential sound wave login signal, and determine whether it is a valid sound wave login signal according to the coding information. If so, confirm that the sound wave login signal of the sound wave login terminal is received, otherwise continue to monitor the sound wave signal.

[0092] Specifically, the display device is equipped with one or more sound wave receivers to monitor the sound wave signals in the environment in real time. The sound wave receiver can be a microphone or other sound wave sensor for capturing the sound wave signals in the air. The display device performs spectrum analysis on the received sound wave signal and converts the signal into frequency domain data. Spectrum analysis can help distinguish signals of different frequencies and identify sound wave signals within a specific frequency range. The system pre-sets a specific frequency range (e.g., 20kHz to 22kHz) to filter out the interference of non-login signals, and identifies potential sound wave login signals by comparing the spectrum of the received sound wave signal with the preset frequency range. Then, the identified potential sound wave login signal is decoded to extract the coding information therein, the coding information includes user identity information (such as user ID), timestamp and verification code, and verifies whether it complies with the preset format and rules according to the extracted coding information, such as checking whether the timestamp is reasonable, whether the verification code is valid, etc. If the coding information complies with the preset format and rules and passes the verification, it is confirmed that the received sound wave login signal is a valid sound wave login signal, the display device records the received sound wave login signal, records the receiving time, and prepares for subsequent verification and position calculation steps. If the coded information does not conform to the preset format and rules, or fails to pass the verification, the acoustic signal will continue to be monitored until a valid acoustic login signal is received. Through spectrum analysis, the system can effectively distinguish signals of different frequencies, reduce the impact of environmental noise and other interfering signals, and improve the accuracy of recognition. The preset frequency range is used as a filtering condition to further improve the accuracy of recognition, ensuring that only acoustic signals within a specific frequency range are identified as potential acoustic login signals.

[0093] A second aspect of the present invention provides an intelligent identity authentication system based on sound wave signals, comprising:

[0094] A confirmation module, used for receiving a sound wave login signal from a sound wave login terminal;

[0095] A verification module, used to verify the location information and identity information of the acoustic wave login terminal. If the verification is successful, a working interface indicating successful user login is displayed on the display device. If the verification fails, an identity authentication information input interface is displayed on the display device.

[0096] The logout module is used to monitor the location of the acoustic wave login terminal, and when the acoustic wave login terminal leaves the login range and exceeds a preset time threshold, control the display device to log out of the user interface.

[0097] The third aspect of the present invention provides a display device, comprising a display, a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the intelligent identity authentication method based on acoustic wave signals as described in the first aspect of the present invention when executing the computer program.

[0098] The fourth aspect of the present invention provides a computer-readable storage medium, on which is stored an intelligent identity authentication program based on sound wave signals, which, when executed by a processor, implements the steps of the intelligent identity authentication method based on sound wave signals as described in the first aspect.

[0099] The processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of the intelligent identity authentication system based on acoustic wave signals, and uses various interfaces and lines to connect the various parts of the entire intelligent identity authentication system based on acoustic wave signals to process the executable device.

[0100] The memory can be used to store the computer program and / or module, and the processor realizes various functions of the intelligent identity authentication system based on acoustic wave signals by running or executing the computer program and / or module stored in the memory, and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (SecureDigital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0101] Compared with the prior art, the beneficial effects of the present invention include at least:

[0102] The present invention provides an intelligent identity authentication method, device and system based on sound wave signals, wherein the intelligent identity authentication method based on sound wave signals collects sound wave signals in real time, identifies potential sound wave login signals based on spectrum analysis and a preset frequency range, and combines the location information of the sound wave login terminal to ensure that the user can perform identity authentication only when he is within the login range, thereby improving the security of the system; by parsing the identity authentication information in the sound wave login signal and performing comprehensive authority verification in multiple aspects, the accuracy and security of the identity authentication are ensured; finally, according to the verification result, the corresponding interface is displayed on the display device, thereby realizing automatic login of the user. Compared with the traditional method of manually inputting a user name and password and scanning a QR code, the login time is greatly shortened and the user experience is improved; at the same time, by monitoring the position change of the sound wave login terminal, when the user leaves the login range and exceeds the preset time threshold, the user is automatically set to a logout state, thereby ensuring the security of system resources.

[0103] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and the equivalent structural transformations made by the contents of the present invention specification and drawings, or direct / indirect application in other related technical fields are all included in the scope of patent protection of the present invention. Therefore, the scope of protection of the patent of the present invention shall be subject to the attached claims.

Claims

1. An intelligent identity authentication method based on sound wave signals, characterized in that: The method comprises: Step S100: when receiving the sound wave login signal, obtaining authentication information of the sound wave login terminal according to the sound wave login signal, wherein the authentication information includes location information and account information of the sound wave login terminal; Step S200: Checking the location information and account information of the acoustic wave login terminal. If the verification is successful, controlling the display device to perform a login operation. If the verification fails, controlling the display device to display a login interface. Step S300: After the display device performs the login operation, the location of the acoustic wave login terminal is monitored according to the acoustic wave login signal. When the acoustic wave login terminal leaves the login range and exceeds a preset time, the display device is controlled to perform a logout operation.

2. The intelligent identity authentication method based on sound wave signals as claimed in claim 1, characterized in that: In step S200, the step of verifying the location information of the acoustic wave login terminal includes: The display device obtains the sending time of the sound wave login signal; Calculating the distance between the display device and the acoustic wave login terminal according to the sending time, receiving time and acoustic wave transmission speed of the acoustic wave login signal; It is determined whether the distance between the display device and the mobile terminal is not greater than a login distance of the display device.

3. The intelligent identity authentication method based on sound wave signals as claimed in claim 2, characterized in that: In step S200, the step of verifying the location information of the acoustic wave login terminal further includes: If the display device uses multiple sound wave receivers to receive sound wave signals, a multi-point positioning algorithm is used to determine the specific location of the sound wave login terminal according to the location information of each sound wave receiver and the distance between each sound wave receiver and the sound wave login terminal; Determine whether the location of the acoustic wave login terminal is within a preset login area.

4. The intelligent identity authentication method based on sound wave signals as claimed in claim 2, characterized in that: In step S200, the step of verifying the location information of the acoustic wave login terminal further includes: Acquire auxiliary connection information of the acoustic wave login terminal from the acoustic wave login signal, wherein the auxiliary connection information includes Bluetooth device information and Wi-Fi access point information; Calculating the distance between the acoustic wave login terminal and the display device according to the auxiliary connection information; Combining the distance calculated according to the acoustic wave signal and the distance calculated according to the auxiliary connection information, obtaining the location of the acoustic wave login terminal; Determine whether the location of the acoustic wave login terminal is within a preset login area.

5. The intelligent identity authentication method based on sound wave signals as claimed in claim 4, characterized in that: The step of obtaining the location of the acoustic wave login terminal by combining the distance calculated according to the acoustic wave signal and the distance calculated according to the auxiliary connection information comprises: Calculating a first position of the acoustic wave login terminal according to the acoustic wave signal; Calculating a second position of the acoustic wave login terminal according to the auxiliary connection information; The first position and the second position are fused by weighted averaging method or Kalman filtering method to determine the final position of the acoustic wave login terminal.

6. The intelligent identity authentication method based on sound wave signals according to any one of claims 1 to 5, characterized in that: The method further comprises: When the display device cannot receive the sound wave signal, obtaining a second sound wave collecting device around the display device whose distance from the display device is not greater than a preset threshold; The display device receives the sound wave login signal through the second sound wave collecting device.

7. The intelligent identity authentication method based on sound wave signals according to any one of claims 1 to 5, characterized in that: The method further comprises: In response to the user's sound wave login verification operation, the display device initiates a wake-up request to the sound wave login terminal, so that the sound wave login terminal sends a sound wave login signal.

8. The intelligent identity authentication method based on sound wave signals according to any one of claims 1 to 5, characterized in that: In step S100, the step of receiving the acoustic wave login signal includes: Collect sound wave signals in real time; Identify potential acoustic logging signals based on spectrum analysis and pre-set frequency ranges; Parse the coding information in the potential sound wave login signal, and determine whether it is a valid sound wave login signal according to the coding information. If so, confirm that the sound wave login signal of the sound wave login terminal is received, otherwise continue to monitor the sound wave signal.

9. An intelligent identity authentication system based on sound wave signals, characterized in that: include: A confirmation module, configured to obtain authentication information of the acoustic wave login terminal according to the acoustic wave login signal when receiving the acoustic wave login signal, wherein the authentication information includes location information and account information of the acoustic wave login terminal; A verification module, used to verify the location information and account information of the acoustic wave login terminal, and if the verification passes, control the display device to perform a login operation; if the verification fails, control the display device to display a login interface; The logout module is used to monitor the position of the acoustic wave login terminal according to the acoustic wave login signal after the display device performs the login operation, and control the display device to perform the logout operation when the acoustic wave login terminal leaves the login range and exceeds a preset time threshold.

10. A display device, comprising a display, a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the intelligent identity authentication method based on sound wave signals as described in any one of claims 1 to 8 is implemented.

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