Intelligent glasses and communication method thereof

Abstract

The invention provides intelligent glasses and a communication method thereof, and relates to the technical field of wearable equipment. The smart glasses include a frame, legs extending from the frame, a first antenna, a second antenna, a multiple-input multiple-output antenna, and a processor. The first antenna is arranged on the mirror frame, and the first antenna carries out communication on the L1 frequency band of the GPS frequency. The second antenna is arranged on the mirror frame and is separated from the first antenna, and the second antenna carries out communication on the L5 frequency band of the GPS frequency. The multiple-input-multiple-output antennas are arranged at the ends of the glasses legs, and the processors are arranged at the positions, close to the glasses frame, of the glasses legs and are connected with the first antennas, the second antennas and the multiple-input-multiple-output antennas respectively. According to the intelligent glasses disclosed by the invention, a high-precision positioning and navigation system which can be applied to a global satellite navigation system is realized, and the accuracy and the safety of the positioning system are improved.

Description

Technical Field

[0001] This disclosure relates to the field of wearable device technology, and more particularly to a smart glasses and its communication method. Background Technology

[0002] With the rapid development of information technology, high-precision positioning and navigation of smart glasses has become a research hotspot. Smart glasses can seamlessly integrate virtual information into the real world, meaning navigation information is no longer limited to the phone screen but can be directly presented in the user's first-person perspective. Users don't need to look down at their phones to clearly see route guidance, landmark information, real-time traffic updates, and other essential information within their field of vision, greatly improving the efficiency and safety of high-precision positioning and navigation. Summary of the Invention

[0003] This disclosure presents an embodiment of smart glasses and a communication method thereof.

[0004] In a first aspect, embodiments of this disclosure provide a smart pair of glasses, including a frame, temples extending from the frame, a first antenna, a second antenna, a multiple-input multiple-output (MIMO) antenna, and a processor. The first antenna is disposed in the frame and is adapted to communicate in the L1 band of GPS frequencies. The second antenna is disposed in the frame and spaced apart from the first antenna, and the second antenna is adapted to communicate in the L5 band of GPS frequencies. The MIMO antenna is disposed at the end of the temple, and the processor is disposed in the temple and connected to the first antenna, the second antenna, and the MIMO antenna.

[0005] In some embodiments, the frame includes a left frame and a right frame, with a first antenna disposed within the top border of the left frame and a second antenna disposed within the top border of the right frame.

[0006] In some implementations, the first antenna is bent into an S-shape; and / or, the second antenna is bent into an S-shape.

[0007] In some embodiments, the distance between the center of the first antenna and the center of the second antenna is 0.4λ0 to 0.6λ0. 0， Where λ0 is the wavelength in free space.

[0008] In some embodiments, the size of the first antenna ranges from 25 mm to 50 mm in the direction parallel to the frame, and from 3 mm to 5 mm in the direction perpendicular to the frame. Similarly, the size of the second antenna ranges from 25 mm to 50 mm in the direction parallel to the frame, and from 3 mm to 5 mm in the direction perpendicular to the frame.

[0009] In some implementations, the smart glasses also include an inertial measurement unit (IMU) disposed in the temple and integrated with a processor, the IMU being communicatively connected to the processor.

[0010] In some embodiments, the smart glasses also include a radio frequency (RF) circuit, which is located on the temple near the frame and integrated with the processor. The RF circuit is connected to a first antenna, a second antenna, and the processor, respectively.

[0011] In some implementations, the smart glasses also include a storage element located on the temple near the frame, connected to the processor, and integrated with the processor and radio frequency circuitry.

[0012] In some embodiments, the temples include a left temple and a right temple, and the smart glasses also include a power supply structure connected to a processor. A multiple-input multiple-output (MIMO) antenna is located at the end of the left temple, and the power supply structure is located at the end of the right temple; alternatively, the MIMO antenna is located at the end of the right temple, and the power supply structure is located at the end of the left temple.

[0013] Secondly, embodiments of this disclosure provide a communication method for smart glasses, comprising: in response to a processor receiving a first command, receiving satellite signals using a first antenna and converting the satellite signals received by the first antenna into a first digital signal and transmitting it to the processor; and receiving satellite signals using a second antenna and converting the satellite signals received by the second antenna into a second digital signal and transmitting it to the processor. In response to a processor receiving a second command, receiving environmental data using a multiple-input multiple-output antenna, and generating positioning data and navigation data based on the environmental data using orthogonal frequency division multiplexing (OFDM) and real-time dynamic carrier phase differential (RCD) techniques. The processor forms location information based on the first digital signal, the second digital signal, the positioning data, and the navigation data.

[0014] In some implementations, the communication method of smart glasses further includes: the processor receiving acceleration data and angular velocity data of the wearer of the smart glasses, and the processor forming position information based on the first digital signal, the second digital signal, positioning data, navigation data, acceleration data, and angular velocity data.

[0015] In some implementations, the communication method for smart glasses further includes: the processor performing image processing based on map data to generate a navigation screen and output it to the lenses of the smart glasses.

[0016] The smart glasses disclosed herein include a first antenna in the L1 band and a second antenna in the L5 band, both located on the frame of the smart glasses, as well as a multi-input multi-output (MIMO) antenna located on the temples. Through the dual-band L1 and L5 antenna structure, combined with the MIMO antenna, high-speed data transmission and improved signal quality are provided, enabling a high-precision positioning and navigation system applicable to global satellite navigation systems, thus improving the accuracy and security of the positioning system. Furthermore, since the first and second antennas are located on the frame of the smart glasses, while metal components such as circuit boards are located on the temples, the distance between the first and second antennas and the metal components is relatively large, effectively improving the isolation between them and minimizing the impact on antenna performance. This enhances the antenna's operating bandwidth and radiation efficiency, thereby improving the accuracy of the smart glasses in positioning and navigation.

[0017] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0018] Other features, objects, and advantages of this disclosure will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 A block diagram of a smart glasses provided in an embodiment of this disclosure;

[0020] Figure 2 A block diagram of another type of smart glasses provided in an embodiment of this disclosure;

[0021] Figure 3 This is a schematic diagram of the structure of a smart glasses provided in an embodiment of the present disclosure;

[0022] Figure 4A This is a schematic diagram of the structure of a first antenna included in a smart glasses embodiment provided by this disclosure;

[0023] Figure 4B This is a schematic diagram of the structure of a second antenna included in a smart glasses embodiment provided by this disclosure;

[0024] Figure 5 A reflection coefficient curve of the first antenna provided in an embodiment of this disclosure;

[0025] Figure 6 A graph showing the overall efficiency of the first antenna provided in an embodiment of this disclosure;

[0026] Figure 7 A reflection coefficient curve of the second antenna provided in this embodiment of the disclosure;

[0027] Figure 8 The overall efficiency curve of the second antenna provided in this embodiment of the disclosure;

[0028] Figure 9 A flowchart illustrating a communication method for smart glasses provided in an embodiment of this disclosure;

[0029] Figure 10 This is a flowchart illustrating another communication method for smart glasses provided in an embodiment of this disclosure. Detailed Implementation

[0030] To better understand this disclosure, various aspects of this disclosure will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this disclosure and are not intended to limit the scope of this disclosure in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0031] It should be noted that in this specification, the terms "first," "second," "third," etc., are used only to distinguish one feature from another and do not imply any limitation on the features, especially not any order of precedence.

[0032] It should also be understood that expressions such as "comprising," "including," "having," "containing," and / or "comprising" are open-ended rather than closed-ended expressions in this specification, indicating the presence of the stated features, elements, and / or components, but not excluding the presence of one or more other features, elements, components, and / or combinations thereof. Furthermore, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire list of features, not just individual elements in the list. Additionally, when describing embodiments of this disclosure, the word "may" is used to mean "one or more embodiments of this disclosure." And the term "exemplary" is intended to refer to an example or illustration.

[0033] Unless otherwise specified, all terms used herein (including engineering and technical terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It should also be understood that, unless expressly stated in this disclosure, terms as defined in common dictionaries shall be interpreted as having the meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or overly formalized meaning.

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other. Furthermore, unless explicitly limited or contradicted by the context, the specific steps included in the methods described in this disclosure are not limited to the order in which they are described, but can be performed in any order or in parallel.

[0035] Furthermore, when the term “connection” or “linkage” is used in this disclosure, it may indicate direct or indirect contact between the corresponding components, unless otherwise expressly defined or deduced from the context.

[0036] First, the terms and concepts used in this disclosure will be explained.

[0037] GNSS, or Global Navigation Satellite System, is a positioning system based on artificial Earth satellites that provides accurate geographic location, velocity, and time information anywhere in the world and in near-Earth space. GNSS is a general term encompassing multiple satellite navigation systems and their enhancement systems, such as the Global Positioning System (GPS) and the BeiDou Navigation Satellite System (BDS).

[0038] Application Processor (AP): Also known as a processor, it is primarily responsible for running high-level applications and operating systems, handling high-level tasks such as user interfaces and user interactions. As the core processor of smart glasses, the AP possesses powerful data processing capabilities. In high-precision positioning and navigation systems, the AP is responsible for processing signals from multiple satellite systems such as GPS and BDS, while simultaneously running other applications, such as AR displays and voice interaction. The AP ensures that these tasks run smoothly and without interference through its multi-tasking parallel processing capabilities.

[0039] A 9-axis sensor is a device that integrates multiple sensors, typically including a three-axis accelerometer, a three-axis gyroscope, and a three-axis magnetometer. It can measure the acceleration, angular velocity, and orientation of an object, thereby providing comprehensive motion and attitude data, and can be applied to high-precision positioning and navigation systems.

[0040] LTE, or Long Term Evolution, is a wireless communication technology that uses orthogonal frequency division multiplexing (OFDMA) and multiple-input multiple-output (MIMO) antenna beamforming technology to provide high-speed data transmission and better signal quality. This enables LTE networks to support the real-time transmission of large amounts of data, providing a solid foundation for high-precision positioning and navigation systems.

[0041] RTK, or Real-Time Kinematic, is a real-time dynamic carrier phase differential technology that provides millimeter-level precision positioning and navigation information in real time by acquiring and processing signals from global navigation satellite systems. It utilizes wireless communication between a mobile receiver and a base station to receive correction data and compensate for the received satellite signals, thereby achieving high-precision positioning and navigation.

[0042] DDR: Double Data Rate, is a memory technology primarily used to improve data transfer rates and storage performance.

[0043] Traditional smart glasses place the antenna in the left and right temples. Since the left and right temples also contain metal components such as batteries and circuit boards, the proximity of these metal components to the antenna affects the impedance matching and radiation performance of the positioning antenna, which in turn reduces the accuracy of the GNSS global positioning system.

[0044] To address the issue of low positioning accuracy in traditional smart glasses, this disclosure provides a new type of smart glasses. This smart glasses incorporates a first antenna and a second antenna within the frame, along with a multiple-input multiple-output antenna configuration, enabling high-precision positioning and navigation.

[0045] This disclosure provides a smart glasses 10, such as Figure 1 and Figure 3 As shown, the smart glasses 10 includes a frame (including a left frame 13 and a right frame 14), temples extending from the frame (including a left temple 16 and a right temple 17), a first antenna 111, a second antenna 112, a multiple-input multiple-output (MIMO) antenna 113, and an application processor 114. The first antenna 111 is disposed on the frame of the smart glasses 10 and is adapted for communication in the L1 band of GPS frequencies. The second antenna 112 is disposed on the frame of the smart glasses 10, and the second antenna 112 is spaced apart from the first antenna 111. The second antenna 112 is adapted for communication in the L5 band of GPS frequencies. The MIMO antenna 113 is disposed at the end of the temple of the smart glasses 10. The application processor 114 is disposed on the temple of the smart glasses 10 near the frame and is connected to the first antenna 111, the second antenna 112, and the MIMO antenna 113.

[0046] It should be noted that GPS frequencies mainly include three bands: L1, L2, and L5. The L1 band has a center frequency of 1575.42 MHz and is primarily used for standard positioning and navigation services. The L2 band has a center frequency of 1227.6 MHz and provides high-precision positioning and navigation services. The L5 band has a center frequency of 1176.45 MHz and is primarily used for civilian precision positioning and navigation services.

[0047] The smart glasses provided in this disclosure include a first antenna in the L1 band and a second antenna in the L5 band located at the frame of the smart glasses, as well as a multi-input multi-output antenna located at the temples of the smart glasses. Through the dual-band L1 and L5 antenna structure, combined with the multi-input multi-output antenna, high-speed data transmission and better signal quality are provided, enabling a high-precision positioning and navigation system applicable to global satellite navigation systems, thus improving the accuracy and security of the positioning system. Furthermore, since the first and second antennas are located at the frame of the smart glasses, while the speaker, circuit board, and other metal components are located at the temples, the distance between the first and second antennas and the metal components is relatively large, effectively improving the isolation between them and minimizing the impact on antenna performance. This enhances the antenna's operating bandwidth and radiation efficiency, thereby improving the accuracy of the smart glasses in positioning and navigation.

[0048] It should be noted that the basic principle of Multiple Input Multiple Output (MIMO) antennas includes the use of space-time coding and space-time diversity techniques. These techniques not only improve system capacity and data transmission rate but also enhance system reliability and anti-interference capabilities. By receiving or transmitting the same signal through multiple antennas, MIMO antennas can increase signal diversity and redundancy, thereby improving signal quality and system coverage.

[0049] It should be noted that the first antenna 111 and the second antenna 112 in this disclosure are GNSS antennas. GNSS antennas are mainly used in global navigation satellite systems to receive satellite signals for positioning and navigation. The multiple-input multiple-output (MIMO) antenna 113 is a MIMO communication technology that, by using multiple antennas at both the transmitting and receiving ends, significantly increases the capacity and spectral efficiency of the communication system without increasing bandwidth. MIMO technology increases signal reliability by simultaneously transmitting signals through multiple antennas on different transmission paths, and receives and decodes these signals at the receiving end using multiple antennas. Utilizing independent channels between antennas, it simultaneously transmits multiple signal streams, thereby improving data transmission rate and system capacity. This technology fully utilizes space resources and improves spectral efficiency by exploiting multipath effects, enabling high-speed and high-capacity data transmission on limited spectrum resources.

[0050] In one specific implementation, such as Figure 2 and Figure 3 As shown, the smart glasses 10 of this disclosure also includes an inertial measurement unit 115. The inertial measurement unit 115 is disposed on the temple of the smart glasses 10 near the frame, and the inertial measurement unit 115 is communicatively connected to the application processor 114, and the inertial measurement unit 115 and the application processor 114 are integrated. For example, the inertial measurement unit 115 is connected to the application processor 114 through a serial interface to transmit acceleration and angular velocity data.

[0051] It should be noted that an Inertial Measurement Unit (IMU) typically refers to a 6-axis or 9-axis sensor, which integrates a gyroscope and accelerometer, and sometimes a magnetometer. The primary function of an IMU is to measure and monitor the acceleration and angular velocity of an object, thereby calculating its attitude, orientation, and motion state. A 6-axis sensor includes a 3-axis gyroscope and a 3-axis accelerometer, while a 9-axis sensor further includes a 3-axis magnetometer to provide more comprehensive spatial positioning and navigation information.

[0052] In one specific implementation, such as Figure 2 and Figure 3 As shown, the smart glasses 10 in this disclosure also includes a radio frequency (RF) circuit 116. The RF circuit 116 is located on the temple of the smart glasses 10 near the frame. The RF circuit 116 is connected to a first antenna 111, a second antenna 112, and an application processor 114, and is integrated with the application processor 114 and an inertial measurement unit 115. The dual-frequency first antenna 111 and second antenna 112 are connected to the application processor 114 via the RF circuit 116 to receive satellite signals, thereby achieving high-precision GPS and BDS positioning and navigation.

[0053] It should be noted that the RF circuit 116 includes an RF front-end and an RF transceiver. The RF transceiver converts the digital signal into an analog RF signal through modulation at the transmitting end, and demodulates the analog RF signal back into a digital signal at the receiving end. The RF front-end is the part of the wireless communication device responsible for processing RF signals, including functions such as RF signal reception, amplification, filtering, and modulation. The RF front-end is the core component of the wireless communication module, connecting the antenna and the RF transceiver.

[0054] In one specific implementation, such as Figure 2 and Figure 3As shown, the smart glasses 10 of this disclosure also includes a storage element 118, which is disposed on the temple of the smart glasses 10 near the frame. The storage element 118 is connected to the application processor 114 and is integrated with the application processor 114, the radio frequency circuit 116, and the inertial measurement unit 115. For example, the storage element 118 is a DDR memory, which serves as system memory and can be connected to the application processor 114 via a bus to provide data storage and program execution space.

[0055] In one specific implementation, such as Figure 2 and Figure 3 As shown, the smart glasses 10 of this disclosure also includes a power supply structure 117, which is connected to the application processor 114. The power supply structure 117 can be the battery 23 of the smart glasses. In one embodiment, a multiple-input multiple-output antenna 113 is disposed at the end of the left temple, and the power supply structure 117 is disposed at the end of the right temple. In another embodiment, the multiple-input multiple-output antenna 113 is disposed at the end of the right temple, and the power supply structure 117 is disposed at the end of the left temple. Exemplarily, the power supply structure 117 supplies power to the entire system of the smart glasses 10 and can be connected to the application processor 114 through a power management module (not shown) to achieve power monitoring and energy-saving management.

[0056] In one specific implementation, such as Figure 3 , Figure 4A and Figure 4B As shown, Figure 4A The structure of the first antenna 111 is shown. Figure 4B The structure of the second antenna 112 is shown. The frame of the smart glasses 10 in this disclosure includes a left frame 13 and a right frame 14. The first antenna 111 is disposed within the top edge of the left frame 13, and the second antenna 112 is disposed within the top edge of the right frame 14. This arrangement effectively isolates the first antenna 111 and the second antenna 112. Furthermore, the first antenna 111 and the second antenna 112 are located at the frame position of the smart glasses 10, which is far from the metal components on the temples, reducing the impact of the metal components on the performance of the first antenna 111 and the second antenna 112.

[0057] It should be noted that the first antenna 111 can be embedded within the top edge of the left frame 13, and the second antenna 112 can be embedded within the top edge of the right frame 14. For example, in one embodiment, the bottom of the smart glasses frame can be supported by a plastic material for the lenses. The first antenna 111 can be embedded within either the top or bottom edge of the left frame 13; the second antenna 112 can be embedded within either the top or bottom edge of the right frame 14. In another embodiment, the bottom of the smart glasses frame is hollowed out, and the lenses are fixed by the left and right sides of the frame. The first antenna 111 can be embedded within the top edge of the left frame 13, and the second antenna 112 can be embedded within the top edge of the right frame 14. Specifically, the first antenna 111 can be embedded at the edge of the top edge of the left frame 13 (e.g., at the upper edge of the left frame 13) or at the middle position of the top edge of the left frame 13. The second antenna 112 can be embedded in the edge position within the top border of the right frame 14 (e.g., embedded in the upper edge of the right frame 14), or it can be embedded in the middle position within the top border of the right frame 14.

[0058] In one specific embodiment, the distance between the center of the first antenna 111 and the center of the second antenna 112 is 0.4λ0 to 0.6λ0; where λ0 is the wavelength in free space. The high isolation between the first antenna 111 and the second antenna 112 enhances the operating bandwidth and radiation efficiency of the first antenna 111 and the second antenna 112, thereby improving the accuracy of smart glasses in positioning and navigation.

[0059] It should be noted that the wavelength in free space refers to the distance the wavefront travels within one complete wave cycle when an electromagnetic wave propagates in free space. In free space, the wavelength can be calculated by dividing the speed of light by the frequency.

[0060] In one specific implementation, such as Figure 4A As shown, the first antenna 111 is bent into an S-shape. This disclosure achieves miniaturization of the first antenna 111 through bending. The reduction in antenna size facilitates the high integration of internal components of the smart glasses and reduces the weight of the smart glasses, meeting the requirement of lightweight smart glasses when worn.

[0061] Specifically, such as Figure 4AAs shown, the bending shapes at both ends of the first antenna 111 in the first direction can be different, and the bending areas at both ends of the first antenna 111 in the first direction can also be different. In the second direction, the dimensions of the two ends of the first antenna 111 after bending can be equal. This bending method of the first antenna 111 enables its miniaturization, thus not occupying too much area of ​​the smart glasses, and making it easier to embed into the frame of the smart glasses. The first direction can be parallel to the frame, and the second direction can be perpendicular to the frame.

[0062] In one specific implementation, such as Figure 4B As shown, the second antenna 112 is bent into an S-shape. This disclosure achieves miniaturization of the second antenna 112 through bending. The reduction in antenna size facilitates the high integration of internal components of the smart glasses and reduces the weight of the smart glasses, meeting the requirement of lightweight smart glasses when worn.

[0063] Specifically, such as Figure 4B As shown, the bending shapes at both ends of the second antenna 112 in the first direction can be different, and the bending areas at both ends of the second antenna 112 in the first direction can also be different. In the second direction, the dimensions of the two ends of the second antenna 112 after bending can be equal. This bending method of the second antenna 112 enables the design of the second antenna 112 to be miniaturized, thus not occupying too much area of ​​the smart glasses, and making it easier to embed into the frame of the smart glasses.

[0064] Specifically, the bending method of the second antenna 112 can be different from the bending method of the first antenna 111, such as... Figure 4A and Figure 4B As shown, in the first direction, the bending shape of the left end of the first antenna 111 is similar to or can be the same as the bending shape of the left end of the second antenna 112. The bending shape of the right end of the first antenna 111 is different from the bending shape of the right end of the second antenna 112. For example, after the right end of the first antenna 111 is bent, the distance between the bent part and the unbent part in the second direction is the first distance, and the value of the first distance is small. After the right end of the second antenna 112 is bent, the distance between the bent part and the unbent part in the second direction is the second distance, and the value of the second distance is large. That is, the first distance is smaller than the second distance.

[0065] It should be noted that the first antenna 111 can be a monopole antenna, and its feeding method can be discrete port feeding. The second antenna 112 can also be a monopole antenna, and its feeding method can also be discrete port feeding. Furthermore, the first antenna 111 can also be an IFA (Inverted-F Antenna), a PIFA (Planar Inverted-F Antenna), a microstrip antenna, etc., and its feeding method can also be lumped port feeding, coaxial feeding, etc. Similarly, the second antenna 112 can also be an IFA antenna, a PIFA antenna, a microstrip antenna, etc., and its feeding method can also be lumped port feeding, coaxial feeding, etc.

[0066] In one specific implementation, such as Figure 4A As shown, in the direction parallel to the frame, the size A1 of the first antenna 111 ranges from 25 mm to 50 mm; in the direction perpendicular to the frame, the size B1 of the first antenna 111 ranges from 3 mm to 5 mm. For example, in the direction parallel to the frame, the size A1 of the first antenna 111 is 40 mm, and in the direction perpendicular to the frame, the size B1 of the first antenna 111 is 4.5 mm.

[0067] In one specific implementation, such as Figure 4B As shown, the dimension A2 of the second antenna 112 ranges from 25 mm to 50 mm in the direction parallel to the frame; and the dimension B2 of the second antenna 112 ranges from 3 mm to 5 mm in the direction perpendicular to the frame. For example, the dimension A2 of the second antenna 112 is 32 mm in the direction parallel to the frame, and the dimension B2 of the second antenna 112 is 4 mm in the direction perpendicular to the frame.

[0068] The smart glasses provided in this disclosure will be described in detail below with reference to a specific embodiment.

[0069] like Figure 3As shown, the smart glasses 10 provided in this disclosure includes a left lens 11, a right lens 12, a left frame 13, a right frame 14, a camera 15, a first antenna 111, a second antenna 112, a left temple 16, a right temple 17, a first circuit board 18, a second circuit board 19, a left speaker 21, a right speaker 22, a battery 23, and a multiple-input multiple-output antenna 113. For example, the first circuit board 18 is disposed on the left temple 16 near the left frame 13, and the second circuit board 19 is disposed on the right temple 17 near the right frame 14. The left speaker 21 is disposed on the left temple 16, and when the user wears the smart glasses 10, the left speaker 21 needs to be positioned near the user's left ear. The right speaker 22 is disposed on the right temple 17, and when the user wears the smart glasses 10, the right speaker 22 needs to be positioned near the user's right ear. The battery 23 is disposed at the end of the right temple 17, and the multiple-input multiple-output antenna 113 is disposed at the end of the left temple 16.

[0070] It should be noted that the first antenna 111 is located at the top of the left frame 13, and the second antenna 112 is located at the top of the right frame 14. The distance between the center of the first antenna 111 and the center of the second antenna 112 is 0.4λ0 to 0.6λ0.

[0071] It should be noted that the first circuit board 18 is the motherboard, which is the core control component of the entire smart glasses 10. It mainly includes components such as the application processor 114, the inertial measurement unit 115, the radio frequency circuit 116, the power management module, and the storage element 118. The second circuit board 19 is the sub-board, which is mainly responsible for audio output, button control, etc. The first circuit board 18 and the second circuit board 19 are connected by a flexible printed circuit board (not shown in the figure).

[0072] It should be noted that the left speaker 21 and right speaker 22 transmit sound by vibrating the user's ear contour bones and skull, providing an open listening experience. The battery 23 (i.e., the power supply structure 117 in this disclosure) provides power, enabling the smart glasses 10 to achieve long standby times. The multiple-input multiple-output antenna 113 provides data transmission for LTE technology.

[0073] To verify that the first antenna 111 and the second antenna 112 of the smart glasses disclosed herein have good performance, impedance matching and average total efficiency simulations were performed on the first antenna 111 and the second antenna 112. The simulation results for the first antenna 111 are as follows: Figure 5 and Figure 6 As shown, the simulation results for the second antenna 112 are as follows: Figure 7 and Figure 8 As shown.

[0074] like Figure 5 As shown, Figure 5 This is a reflection coefficient curve of the first antenna 111 provided in this disclosure. The horizontal axis represents the operating frequency of the first antenna 111, and the vertical axis represents the reflection coefficient of the first antenna 111. From... Figure 5 As can be seen, when the reflection coefficient of the first antenna 111 is -6, the operating bandwidth of the first antenna 111 is 1552.3MHz to 1591MHz, and the impedance matching performance of the first antenna 111 is good.

[0075] like Figure 6 As shown, Figure 6 This is a graph showing the overall efficiency of the first antenna 111 provided in this disclosure. The horizontal axis represents the operating frequency of the first antenna 111, and the vertical axis represents the overall efficiency of the first antenna 111. Figure 6 As can be seen, when the operating frequency of the first antenna 111 is between 1552.3MHz and 1591MHz, the average total efficiency of the first antenna 111 is 54.2%, which is relatively good.

[0076] like Figure 7 As shown, Figure 7 This is a reflection coefficient curve of the second antenna 112 provided in this disclosure. The horizontal axis represents the operating frequency of the second antenna 112, and the vertical axis represents the reflection coefficient of the second antenna 112. From... Figure 7 As can be seen, with a reflection coefficient of -6, the operating bandwidth of the second antenna 112 is 1171MHz to 1188MHz, indicating that the impedance matching performance of the second antenna 112 is good.

[0077] like Figure 8 As shown, Figure 8 This is a graph showing the overall efficiency of the second antenna 112 provided in this disclosure. The horizontal axis represents the operating frequency of the second antenna 112, and the vertical axis represents the overall efficiency of the second antenna 112. From Figure 8 As can be seen, when the operating frequency of the second antenna 112 is between 1171MHz and 1188MHz, the average total efficiency of the second antenna 112 is 45%, which is relatively good.

[0078] This disclosure also provides a communication method for smart glasses, such as... Figure 9 As shown, Figure 9 A flowchart of a communication method for smart glasses provided in this disclosure includes the following steps:

[0079] S101, in response to the application processor receiving a first command, the application processor uses a first antenna to receive satellite signals, converts the satellite signals received by the first antenna into a first digital signal and transmits it to the processor, and uses a second antenna to receive satellite signals, converts the satellite signals received by the second antenna into a second digital signal and transmits it to the processor.

[0080] S102. In response to the application processor receiving the second command, the system uses a multiple-input multiple-output antenna to receive environmental data, and based on the environmental data, generates positioning data and navigation data using orthogonal frequency division multiplexing technology and real-time dynamic carrier phase differential technology.

[0081] S103, The processor forms position information based on the first digital signal, the second digital signal, positioning data and navigation data.

[0082] In the communication method of smart glasses provided in this embodiment, since a first antenna is used for communication on the L1 band of the GPS frequency, a second antenna is used for communication on the L5 band of the GPS frequency, and a multiple-input multiple-output antenna is used for communication, high-speed data transmission and better signal quality can be provided, realizing high-precision positioning and navigation that can be applied to global satellite navigation systems.

[0083] In one specific implementation, the first antenna receives satellite signals and transmits the received satellite signals to the radio frequency circuit. The radio frequency circuit converts the satellite signals received by the first antenna into a first digital signal and sends the first digital signal to the application processor.

[0084] In one specific implementation, the second antenna receives satellite signals and transmits the received satellite signals to a radio frequency (RF) circuit. The RF circuit converts the satellite signals received by the second antenna into a second digital signal and sends the second digital signal to the application processor.

[0085] It should be noted that environmental data includes satellite signals, as well as other data in the environment where the user wearing smart glasses is located, such as Wi-Fi data.

[0086] The combination of MIMO technology and orthogonal frequency division multiplexing (OFDM) technology can further improve spectrum efficiency. OFDM technology reduces data bandwidth by converting high-speed data streams into parallel low-speed data streams, thereby transforming multipath fading in the wireless environment into flat fading and efficiently utilizing spectrum resources through the orthogonality of multiple carriers.

[0087] The combination of MIMO technology and orthogonal frequency division multiplexing technology can provide high-speed data transmission and better signal quality, enabling LTE networks to support the real-time transmission of large amounts of environmental data, providing a solid foundation for high-precision positioning and navigation systems. Furthermore, combined with RTK technology, it can provide millimeter-level accurate positioning and navigation data.

[0088] In one specific implementation, before the first antenna receives satellite signals, the second antenna receives satellite signals, and the multiple-input multiple-output antenna receives environmental data, the method further includes: initializing the smart glasses. For example, after powering on the smart glasses, the application processor first performs system initialization, specifically including initializing storage elements and initializing hardware components (e.g., radio frequency circuits).

[0089] In one specific implementation, the application processor forms location information based on a first digital signal, a second digital signal, positioning data, and navigation data. For example, the application processor processes the received first digital signal, second digital signal, positioning data, and navigation data using advanced positioning algorithms (e.g., Kalman filtering, particle filtering, etc.), and uses the resulting positioning information as the location information. Since the digital signals originate from satellite signals acquired by the first and second antennas, and the positioning and navigation data are derived from a combination of MIMO technology, orthogonal frequency division multiplexing technology, and real-time dynamic carrier phase differential technology, the application processor can form high-precision location information after processing this data using advanced positioning algorithms, thereby achieving high-precision positioning and navigation.

[0090] In one specific embodiment, the communication method for smart glasses provided in this disclosure further includes: an application processor receiving acceleration data and angular velocity data of a user wearing the smart glasses; the application processor forming position information based on a first digital signal, a second digital signal, positioning data, navigation data, acceleration data, and angular velocity data. For example, the smart glasses continuously collect acceleration data and angular velocity data of the user wearing the smart glasses through an inertial measurement unit and send them to the application processor via a serial interface. The application processor processes the received first digital signal, second digital signal, positioning data, navigation data, acceleration data, and angular velocity data using advanced positioning algorithms (e.g., Kalman filtering, particle filtering, etc.), and uses the positioning result after advanced positioning algorithm processing as position information. Therefore, after processing this data using advanced positioning algorithms, the application processor can further form high-precision position information, thereby achieving higher-precision positioning and navigation.

[0091] In one specific embodiment, the communication method for smart glasses provided in this disclosure further includes: an application processor outputting the generated location information to the display screen of the smart glasses for display. For example, the application processor outputs the generated location information to the display screen of the smart glasses via a specific interface (e.g., USB interface, UART interface, and Bluetooth). Of course, the application processor can also output the generated location information to other devices or applications via a specific interface; the application processor can specifically output the information according to the user's actual needs.

[0092] In one specific implementation, the display screen of the smart glasses serves as the lens of the smart glasses. The application processor outputs the generated location information to the lens of the smart glasses through a specific interface. Users can intuitively obtain location and navigation data through the lens, avoiding the inconvenience of looking down at their mobile phones and improving the user experience.

[0093] In one specific embodiment, the communication method for smart glasses provided in this disclosure further includes: an application processor performing image processing based on map data to generate a navigation screen and output it to the lenses of the smart glasses. For example, the application processor can also perform image processing on a real-time map based on provided map data (e.g., roads, buildings, etc.), and then use the application processor to generate an intuitive navigation screen to be displayed on the lenses of the smart glasses. In addition to performing high-precision positioning and navigation based on signals received by the first antenna, the second antenna, and the multiple-input multiple-output antenna, the application processor in this disclosure can also call upon existing map data and generate a navigation screen based on that map data for navigation.

[0094] The communication method for smart glasses provided in this disclosure is illustrated below with reference to a specific embodiment.

[0095] like Figure 10 As shown, the communication method of the smart glasses includes steps 201 to 206. After the smart glasses 10 is powered on, the application processor 114 performs system initialization so that the various hardware components included in the smart glasses 10 enter a new working state without being affected by the previous state, specifically executing step S201.

[0096] After system initialization, in response to a first command from the application processor 114, the system uses the first antenna 111 to receive satellite signals and converts the satellite signals received by the first antenna 111 into a first digital signal via the radio frequency circuit 116. In response to the first command from the application processor 114, the system uses the second antenna 112 to receive satellite signals and converts the satellite signals received by the second antenna 112 into a second digital signal via the radio frequency circuit 116. The first and second digital signals are then sent to the application processor 114, specifically executing step S202.

[0097] Furthermore, in response to the second command from the application processor 114, the system uses the multiple-input multiple-output antenna 113 to receive environmental data. Based on the environmental data, it uses orthogonal frequency division multiplexing technology and real-time dynamic carrier phase differential technology (i.e., RTK technology) to generate positioning data and navigation data, and sends the positioning data and navigation data to the application processor 114, specifically executing S203.

[0098] Furthermore, the inertial measurement unit 115 continuously collects the acceleration and angular velocity data of the user wearing smart glasses, and sends the collected acceleration and angular velocity data to the application processor 114, specifically executing S204.

[0099] The application processor 114 performs advanced positioning algorithm processing (such as Kalman filtering, particle filtering, etc.) on the received first digital signal, second digital signal, positioning data, navigation data, acceleration data, and angular velocity data. That is, the application processor 114 uses advanced positioning algorithm processing to fuse the received first digital signal, second digital signal, positioning data, navigation data, acceleration data, and angular velocity data to form high-precision position information, thereby enabling high-precision positioning and navigation. Specifically, S205 is executed.

[0100] Finally, the application processor 114 outputs the generated location information to the lens of the smart glasses 10 through a specific interface (such as a USB interface, a UART interface, and Bluetooth). Users can intuitively obtain location data and navigation data through the lens, avoiding the inconvenience of looking down at their mobile phones and improving the user experience. Specifically, S206 is executed.

[0101] In summary, the smart glasses and communication method provided in this disclosure have the following beneficial technical effects:

[0102] The smart glasses disclosed herein include a first antenna in the L1 band and a second antenna in the L5 band disposed at the frame of the smart glasses, as well as a multi-input multi-output antenna disposed at the temple of the smart glasses. Through the dual-band antenna structure of L1 and L5, combined with the multi-input multi-output antenna, high-speed data transmission and better signal quality are provided, realizing a high-precision positioning and navigation system that can be applied to global satellite navigation systems, which is conducive to improving the accuracy and security of the positioning system.

[0103] In addition, since the first and second antennas are located at the frame of the smart glasses, while the speakers, circuit boards and other metal components are located at the temples of the smart glasses, the distance between the first and second antennas and the metal components is relatively large, which can effectively improve the isolation between them and have less impact on the performance of the antennas. This enhances the working bandwidth and radiation efficiency of the antennas, thereby improving the accuracy of the smart glasses in positioning and navigation.

[0104] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this disclosure can be achieved, and this is not limited herein.

[0105] The specific embodiments described above do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

[0106] The above description is merely an illustration of the embodiments of this disclosure and the technical principles employed. Those skilled in the art should understand that the scope of protection involved in this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the technical concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features disclosed in this disclosure that have similar functions.

Claims

1. A pair of smart glasses, comprising a frame and temples extending from the frame, characterized in that, The smart glasses also include: A first antenna is disposed in the frame and is adapted to communicate in the L1 band of the GPS frequency. A second antenna is disposed in the frame and spaced apart from the first antenna, and the second antenna is adapted to communicate in the L5 band of the GPS frequency. A multiple-input multiple-output antenna is disposed at the end of the temple; and The processor is located on the temple and is connected to the first antenna, the second antenna, and the multiple input multiple output antenna.

2. The smart glasses according to claim 1, characterized in that, The frame includes a left frame and a right frame; The first antenna is disposed within the top border of the left mirror frame, and the second antenna is disposed within the top border of the right mirror frame.

3. The smart glasses according to claim 2, characterized in that, The first antenna is bent into an S-shape; and / or the second antenna is bent into an S-shape.

4. The smart glasses according to claim 2, characterized in that, The distance between the center of the first antenna and the center of the second antenna is 0.4λ0 to 0.6λ0; Where λ0 is the wavelength in free space.

5. The smart glasses according to any one of claims 1 to 4, characterized in that, In a direction parallel to the frame, the size of the first antenna ranges from 25 mm to 50 mm; and In the direction perpendicular to the frame, the size of the first antenna ranges from 3 mm to 5 mm; as well as In a direction parallel to the frame, the size of the second antenna ranges from 25 mm to 50 mm; as well as The second antenna has a size ranging from 3 mm to 5 mm in the direction perpendicular to the frame.

6. The smart glasses according to claim 1, characterized in that, The smart glasses also include any one or any combination of the following: An inertial measurement unit is disposed in the temple and integrated with the processor, and the inertial measurement unit is communicatively connected to the processor; A radio frequency (RF) circuit is disposed on the temple near the frame and integrated with the processor; the RF circuit is connected to the first antenna, the second antenna, and the processor respectively. A storage element is disposed on the temple near the frame, connected to the processor, and integrated with the processor and the radio frequency circuit.

7. The smart glasses according to claim 6, characterized in that, The temples include a left temple and a right temple, and the smart glasses also include a power supply structure, which is connected to the processor. The multiple-input multiple-output antenna is disposed at the end of the left temple, and the power supply structure is disposed at the end of the right temple; or, the multiple-input multiple-output antenna is disposed at the end of the right temple, and the power supply structure is disposed at the end of the left temple.

8. A communication method for smart glasses as described in any one of claims 1-7, comprising: In response to the processor receiving a first command, the processor uses the first antenna to receive satellite signals and converts the satellite signals received by the first antenna into a first digital signal and transmits it to the processor; and uses the second antenna to receive satellite signals and converts the satellite signals received by the second antenna into a second digital signal and transmits it to the processor. as well as In response to the processor receiving a second command, it uses the multiple-input multiple-output antenna to receive environmental data, and based on the environmental data, generates positioning data and navigation data using orthogonal frequency division multiplexing (OFDM) and real-time dynamic carrier phase differential (RCD) techniques; and The processor forms location information based on the first digital signal, the second digital signal, the positioning data, and the navigation data.

9. The communication method according to claim 8, wherein, Also includes: The processor receives acceleration and angular velocity data from the wearer of the smart glasses; The processor forms position information based on the first digital signal, the second digital signal, the positioning data, the navigation data, the acceleration data, and the angular velocity data.

10. The communication method according to claim 9, wherein, Also includes: The processor performs image processing based on map data and generates a navigation screen, which is then output to the lenses of the smart glasses.

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