Intelligent glasses

Abstract

The utility model provides intelligent glasses, 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 is suitable for 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 is suitable for 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] The present disclosure relates to the technical field of wearable devices, and in particular to smart glasses. Background Art

[0002] With the rapid development of information technology, high-precision positioning and navigation using smart glasses has become a research hotspot. Smart glasses seamlessly integrate virtual information into the real world, freeing navigation information from the mobile phone screen and presenting it directly to the user's first-person perspective. Without having to look down at their phone, users can clearly see essential information such as route guidance, landmarks, and real-time traffic updates within their field of view, significantly improving the efficiency and safety of high-precision positioning and navigation. Utility Model Content

[0003] The present disclosure provides a pair of smart glasses.

[0004] In a first aspect, embodiments of the present disclosure provide smart glasses comprising a frame, temples extending from the frame, a first antenna, a second antenna, a multi-input multi-output antenna, and an application processor. The first antenna is disposed on the frame and is adapted to communicate in the L1 frequency band of GPS frequencies. The second antenna is disposed on the frame and spaced apart from the first antenna and is adapted to communicate in the L5 frequency band of GPS frequencies. The multi-input multi-output antenna is disposed at the end of the temple, and the processor is disposed on the temple and is connected to the first antenna, the second antenna, and the multi-input multi-output antenna.

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

[0006] In some embodiments, 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 0.6λ 0， where λ0 is the wavelength in free space.

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

[0009] In some embodiments, in a direction parallel to the frame, a dimension of the second antenna ranges from 25 mm to 50 mm, and in a direction perpendicular to the frame, a dimension of the second antenna ranges from 3 mm to 5 mm.

[0010] In some embodiments, the smart glasses further include an inertial measurement unit, which is disposed in the temple and integrated with the processor, and the inertial measurement unit is communicatively coupled to the processor.

[0011] In some embodiments, the smart glasses further include a radio frequency circuit, which is disposed on the temples near the frame and integrated with the processor. The radio frequency circuit is respectively connected to the first antenna, the second antenna, and the processor.

[0012] In some embodiments, the smart glasses further include a storage element, which is disposed on the temple near the frame, is connected to the processor, and is integrated with the processor and the radio frequency circuit.

[0013] In some embodiments, the temples include a left temple and a right temple, and the smart glasses further include a power supply structure connected to the processor. A multi-input multi-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; alternatively, the multi-input multi-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.

[0014] The smart glasses provided herein include a first antenna in the L1 frequency band and a second antenna in the L5 frequency band, disposed on the frame of the smart glasses, as well as a multi-input multi-output antenna disposed on the temples of the smart glasses. Through the L1 and L5 dual-frequency antenna structures, combined with the multi-input multi-output 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, thereby improving the accuracy and security of the positioning system. Furthermore, since the first and second antennas are disposed on the frame of the smart glasses and metal components such as circuit boards are located on the temples of the smart glasses, the first and second antennas are relatively far away from the metal components, effectively improving the isolation between the two and minimizing the impact on the antenna performance. This enhances the antenna's operating bandwidth, radiation efficiency, and other aspects, thereby improving the accuracy of the smart glasses in positioning and navigation.

[0015] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present disclosure will become more apparent from a reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

[0017] Figure 1 A block diagram of smart glasses provided in an embodiment of the present disclosure;

[0018] Figure 2A block diagram of another type of smart glasses provided in an embodiment of the present disclosure;

[0019] Figure 3 A schematic structural diagram of smart glasses provided by an embodiment of the present disclosure;

[0020] Figure 4A A schematic structural diagram of a first antenna included in smart glasses provided in an embodiment of the present disclosure;

[0021] Figure 4B A schematic structural diagram of a second antenna included in smart glasses provided in an embodiment of the present disclosure;

[0022] Figure 5 A reflection coefficient curve graph of the first antenna provided in an embodiment of the present disclosure;

[0023] Figure 6 A total efficiency curve diagram of the first antenna provided in an embodiment of the present disclosure;

[0024] Figure 7 A reflection coefficient graph of a second antenna provided in an embodiment of the present disclosure;

[0025] Figure 8 A total efficiency curve diagram of the second antenna provided by an embodiment of the present disclosure;

[0026] Figure 9 A schematic diagram of a flow chart of a communication method for smart glasses provided in an embodiment of the present disclosure;

[0027] Figure 10 A flowchart of another communication method for smart glasses provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0028] To better understand the present disclosure, various aspects of the present disclosure will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely descriptions of exemplary embodiments of the present disclosure and are not intended to limit the scope of the present 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.

[0029] It should be noted that in this specification, the expressions first, second, third, etc. are only used to distinguish one feature from another, and do not mean any limitation to the features, and especially do not mean any order of precedence.

[0030] It should also be understood that expressions such as "comprises," "including," "having," "includes," and / or "comprising" are open rather than closed expressions in this specification, indicating the presence of the stated features, elements, and / or components, but do not exclude the presence of one or more other features, elements, components, and / or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire list of features rather than just the individual elements in the list. In addition, when describing embodiments of the present disclosure, "may" is used to mean "one or more embodiments of the present disclosure." And, the term "exemplary" is intended to refer to an example or illustration.

[0031] Unless otherwise defined, all terms used herein (including engineering terms and scientific and technological terms) have the same meaning as commonly understood by those skilled in the art to which the present disclosure pertains. It should also be understood that, unless otherwise expressly stated in the present disclosure, words defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or overly formal sense.

[0032] It should be noted that, unless there is a conflict, the embodiments and features of the embodiments in this disclosure may be combined with each other. In addition, unless explicitly limited or inconsistent with the context, the specific steps included in the method described in this disclosure are not necessarily limited to the order described, but may be performed in any order or in parallel.

[0033] In addition, in the present disclosure, when “connected” or “coupled” is used, it may indicate direct contact or indirect contact between corresponding components, unless otherwise clearly defined or inferred from the context.

[0034] First, the terms involved in this disclosure are explained.

[0035] GNSS (Global Navigation Satellite System) is a positioning system based on artificial Earth satellites that provides accurate location, velocity, and time information anywhere in the world and in near-Earth space. GNSS is a general term that encompasses multiple satellite navigation systems and their enhancements, such as the Global Positioning System (GPS) and the Beidou Navigation Satellite System (BDS).

[0036] Application Processor (AP): Also known as a processor, it is primarily responsible for running advanced applications and operating systems, handling high-level tasks such as the user interface and user interaction. 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 display and voice interaction. The AP's multi-tasking and parallel processing capabilities ensure that these tasks can run smoothly and without interference.

[0037] 9-axis sensor: refers to a device that integrates multiple sensors, usually including a three-axis accelerometer, a three-axis gyroscope, and a three-axis magnetometer. It can measure the acceleration, angular velocity, and direction of an object, thereby providing comprehensive motion and posture data, which can be used in high-precision positioning and navigation systems.

[0038] LTE (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 improved 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.

[0039] RTK, or Real-Time Kinematic, is a real-time dynamic carrier phase differential technology that collects and processes global satellite navigation system signals to provide millimeter-level precision positioning and navigation information in real time. It utilizes wireless communication between a mobile receiver and a base station to receive correction data and compensate for received satellite signals, achieving high-precision positioning and navigation.

[0040] DDR: Double Data Rate (DDR), a memory technology used to improve data transfer rates and storage performance.

[0041] Traditional smart glasses have antennas installed in the left and right temples. Since the left and right temples also contain metal devices such as batteries and circuit boards, these metal devices are close to the antennas, which affects the impedance matching, radiation and other performance of the positioning antennas, thereby reducing the accuracy of the GNSS global positioning system.

[0042] In response to the problem of low positioning accuracy in traditional smart glasses, the present disclosure provides a new type of smart glasses, which sets the first antenna and the second antenna on the frame and cooperates with the setting of multi-input multi-output antennas to achieve high-precision positioning and navigation.

[0043] The present disclosure provides a smart glasses 10, such as Figure 1 and Figure 3 As shown, the smart glasses 10 include 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 multi-input multi-output antenna 113, and an application processor 114. The first antenna 111 is set on the frame of the smart glasses 10 and is suitable for communicating in the L1 frequency band of the GPS frequency. The second antenna 112 is set on the frame of the smart glasses 10 and is spaced apart from the first antenna 111. The second antenna 112 is suitable for communicating in the L5 frequency band of the GPS frequency. The multi-input multi-output antenna 113 is set at the end of the temple of the smart glasses 10. The application processor 114 is set 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 multi-input multi-output antenna 113 respectively.

[0044] It should be noted that GPS frequencies primarily include the L1, L2, and L5 bands. The L1 band, with a center frequency of 1575.42 MHz, is primarily used for standard positioning and navigation services. The L2 band, with a center frequency of 1227.6 MHz, provides high-precision positioning and navigation services. The L5 band, with a center frequency of 1176.45 MHz, is primarily used for civilian precision positioning and navigation services.

[0045] Because the smart glasses provided herein include a first antenna in the L1 frequency band and a second antenna in the L5 frequency band, disposed on the frame of the smart glasses, as well as a multi-input multi-output antenna disposed on the temples of the smart glasses, the L1 and L5 dual-band antenna structures, combined with the multi-input multi-output antenna, provide high-speed data transmission and improved signal quality, thereby achieving a high-precision positioning and navigation system applicable to global satellite navigation systems, thereby improving the accuracy and security of the positioning system. Furthermore, because the first and second antennas are disposed on the frame of the smart glasses, and metal components such as speakers and circuit boards are located on the temples of the smart glasses, the first and second antennas are relatively far away from the metal components, effectively improving the isolation between the two and minimizing the impact on the antenna performance. This enhances the antenna's operating bandwidth, radiation efficiency, and other aspects, thereby improving the accuracy of the smart glasses in positioning and navigation.

[0046] It's important to note that the fundamental principles of Multiple Input Multiple Output (MIMO) antennas include space-time coding and space-time diversity technologies. These technologies not only increase system capacity and data rates, but also enhance system reliability and anti-interference capabilities. By using multiple antennas to receive or transmit the same signal, MIMO antennas increase signal diversity and redundancy, thereby improving signal quality and system coverage.

[0047] It should be noted that the first antenna 111 and the second antenna 112 in the present disclosure are GNSS antennas, which are mainly used in global navigation satellite systems to receive satellite signals for positioning and navigation. The multiple-input multiple-output antenna 113 is a multiple-input multiple-output communication technology that uses multiple antennas at the transmitting and receiving ends to exponentially increase the capacity and spectrum utilization of the communication system without increasing the bandwidth. MIMO technology increases the reliability of the signal by sending signals simultaneously through multiple antennas on different transmission paths, and receives and decodes these signals through multiple antennas at the receiving end, using independent channels between antennas to transmit multiple signal streams simultaneously, thereby improving the data transmission rate and system capacity. This technology makes full use of spatial resources, improves spectrum efficiency by exploiting the multipath effect, and enables high-speed and large-capacity data transmission on limited spectrum resources.

[0048] In a specific embodiment, Figure 2 and Figure 3 As shown, the smart glasses 10 of the present disclosure further include an inertial measurement unit 115, which is disposed on the temples of the smart glasses 10 near the frame. The inertial measurement unit 115 is communicatively coupled to the application processor 114, and the inertial measurement unit 115 is integrated with the application processor 114. Exemplarily, the inertial measurement unit 115 is connected to the application processor 114 via a serial interface to transmit acceleration and angular velocity data.

[0049] It should be noted that the inertial measurement unit (IMU) 115 typically refers to a 6-axis sensor or a 9-axis sensor, which integrates a gyroscope, an accelerometer, and sometimes a magnetometer. The main function of the IMU is to measure and monitor the acceleration and angular velocity of an object, thereby calculating the object's attitude, direction, and motion state. The 6-axis sensor includes a 3-axis gyroscope and a 3-axis accelerometer, while the 9-axis sensor also includes a 3-axis magnetometer to provide more comprehensive spatial positioning and navigation information.

[0050] In a specific embodiment, Figure 2 and Figure 3As shown, the smart glasses 10 of the present disclosure also include a radio frequency circuit 116, which is disposed on the temples of the smart glasses 10 near the frame. The radio frequency circuit 116 is respectively connected to the first antenna 111, the second antenna 112, and the application processor 114. The radio frequency circuit 116 is integrated with the application processor 114 and the inertial measurement unit 115. The dual-band first antenna 111 and the second antenna 112 are connected to the application processor 114 through the radio frequency circuit 116 to receive satellite signals, thereby achieving high-precision GPS and BDS positioning and navigation.

[0051] It should be noted that the RF circuit 116 includes an RF front-end and an RF transceiver. The RF transceiver converts digital signals into analog RF signals through modulation at the transmitting end and demodulates the analog RF signals back into digital signals at the receiving end. The RF front-end is the part of a wireless communication device responsible for processing RF signals, including receiving, amplifying, filtering, and modulating RF signals. It is the core component of the wireless communication module, connecting the antenna and RF transceiver.

[0052] In a specific embodiment, Figure 2 and Figure 3 As shown, the smart glasses 10 of the present disclosure further include a storage element 118, which is disposed on the temples of the smart glasses 10 near the frame. The storage element 118 is coupled to the application processor 114 and is integrated with the application processor 114, the radio frequency circuit 116, and the inertial measurement unit 115. Exemplarily, 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.

[0053] In a specific embodiment, Figure 2 and Figure 3 As shown, the smart glasses 10 in the present disclosure further include 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, the multi-input multi-output antenna 113 is provided at the end of the left temple, and the power supply structure 117 is provided at the end of the right temple. In another embodiment, the multi-input multi-output antenna 113 is provided at the end of the right temple, and the power supply structure 117 is provided 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 in the figure) to achieve power monitoring and energy-saving management.

[0054] In a specific embodiment, Figure 3 、 Figure 4A and Figure 4B As shown, Figure 4Ashows the structure of the first antenna 111, Figure 4B The structure of the second antenna 112 is shown. The frames of the smart glasses 10 in the present disclosure include a left frame 13 and a right frame 14. The first antenna 111 is disposed within the top frame of the left frame 13, and the second antenna 112 is disposed within the top frame of the right frame 14. This arrangement effectively isolates the first antenna 111 and the second antenna 112. Furthermore, the first and second antennas 111, 112 are disposed within the frames of the smart glasses 10, further away from the metal components on the temples, thereby minimizing the impact of the metal components on the performance of the first and second antennas 111, 112.

[0055] It should be noted that the first antenna 111 can be embedded in the left frame 13, and the second antenna 112 can be embedded in the right frame 14. For example, in one embodiment, the bottom of the frame of the smart glasses can be made of plastic material to support the lenses. The first antenna 111 can be embedded in the top frame of the left frame 13 or the bottom frame of the left frame 13; the second antenna 112 can be embedded in the top frame of the right frame 14 or the bottom frame of the right frame 14. In another embodiment, the bottom of the frame of the smart glasses is hollowed out, and the lenses are fixed by the left and right sides of the frame. The first antenna 111 can be embedded in the top frame of the left frame 13, and the second antenna 112 can be embedded in the top frame of the right frame 14. Specifically, the first antenna 111 can be embedded in the edge of the left frame 13 (for example, embedded in the upper edge of the left frame 13), or embedded in the middle of the top frame of the left frame 13. The second antenna 112 can be embedded in an edge position of the right frame 14 (for example, embedded in the upper edge of the right frame 14 ), or embedded in the middle position of the top border of the right frame 14 .

[0056] 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 positioning and navigation accuracy of the smart glasses.

[0057] It should be noted that the wavelength in free space refers to the distance the wavefront travels during 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.

[0058] In a specific embodiment, Figure 4AAs shown, the shape of the first antenna 111 is bent into an S shape. The present disclosure miniaturizes the first antenna 111 by bending. The reduction in antenna size is conducive to the high integration of internal components of the smart glasses and reduces the weight of the smart glasses, which meets the requirement of light weight when wearing smart glasses.

[0059] Specifically, if Figure 4A As shown, the curved shapes of the first antenna 111 at both ends in the first direction can be different, and the curved areas at both ends of the first antenna 111 can also be different in the first direction. In the second direction, the dimensions of the first antenna 111 after bending at both ends can be equal. This bending method of the first antenna 111 can make the design of the first antenna 111 smaller, thereby not occupying too much area of ​​the smart glasses, and making it easier to embed it 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.

[0060] In a specific embodiment, Figure 4B As shown, the second antenna 112 is bent into an S-shape. The present disclosure miniaturizes the second antenna 112 by bending. The reduction in antenna size is conducive to the high integration of internal components of the smart glasses and reduces the weight of the smart glasses, which meets the requirement of light weight when wearing smart glasses.

[0061] Specifically, if Figure 4B As shown, the curved shapes of the second antenna 112 at both ends in the first direction can be different, and the curved areas at both ends of the second antenna 112 can also be different in the first direction. In the second direction, the bent dimensions of the second antenna 112 at both ends can be equal. This bending method of the second antenna 112 can miniaturize the design of the second antenna 112, thereby not occupying too much area of ​​the smart glasses, and making it easier to embed it into the frame of the smart glasses.

[0062] Specifically, the bending manner of the second antenna 112 may be different from the bending manner 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, and 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 portion and the unbent portion in the second direction is a first distance, and the value of the first distance is smaller. After the right end of the second antenna 112 is bent, the distance between the bent portion and the unbent portion in the second direction is a second distance, and the value of the second distance is larger, that is, the first distance is smaller than the second distance.

[0063] It should be noted that the first antenna 111 can be a monopole antenna, and the feeding method can be discrete port feeding. The second antenna 112 can also be a monopole antenna, and the feeding method can also be discrete port feeding. In addition, the first antenna 111 can also be an IFA (Inverted-F Antenna) antenna, a PIFA (Planar Inverted-F Antenna) antenna, a microstrip antenna, or other antenna shapes, and the feeding method of the first antenna 111 can also be a lumped port feeding, coaxial feeding, or other feeding method. The second antenna 112 can also be an IFA antenna, a PIFA antenna, a microstrip antenna, or other antenna shapes, and the feeding method of the second antenna 112 can also be a lumped port feeding, coaxial feeding, or other feeding method.

[0064] In a specific embodiment, Figure 3 and Figure 4A As shown, in a direction parallel to the frame, the dimension A1 of the first antenna 111 ranges from 25 mm to 50 mm; in a direction perpendicular to the frame, the dimension B1 of the first antenna 111 ranges from 3 mm to 5 mm. For example, in a direction parallel to the frame, the dimension A1 of the first antenna 111 is 40 mm, and in a direction perpendicular to the frame, the dimension B1 of the first antenna 111 is 4.5 mm.

[0065] In a specific embodiment, Figure 3 and Figure 4B As shown, in a direction parallel to the frame, the dimension A2 of the second antenna 112 ranges from 25 mm to 50 mm; in a direction perpendicular to the frame, the dimension B2 of the second antenna 112 ranges from 3 mm to 5 mm. For example, in a direction parallel to the frame, the dimension A2 of the second antenna 112 is 32 mm, and in a direction perpendicular to the frame, the dimension B2 of the second antenna 112 is 4 mm.

[0066] The smart glasses provided by the present disclosure are described in detail below with reference to a specific embodiment.

[0067] like Figure 3As shown, the smart glasses 10 provided by the present disclosure include 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 multi-input multi-output antenna 113. For example, the first circuit board 18 is located on the left temple 16 near the left frame 13, and the second circuit board 19 is located on the right temple 17 near the right frame 14. The left speaker 21 is located on the left temple 16, and when a user wears the smart glasses 10, the left speaker 21 should be located near the user's left ear. The right speaker 22 is located on the right temple 17, and when a user wears the smart glasses 10, the right speaker 22 should be located near the user's right ear. The battery 23 is located at the end of the right temple 17, and the multi-input multi-output antenna 113 is located at the end of the left temple 16.

[0068] It should be noted that the first antenna 111 is set in the top frame of the left frame 13, and the second antenna 112 is set in the top frame 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.

[0069] It should be noted that the first circuit board 18 is the main board and 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 a sub-board, 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).

[0070] It should be noted that the left and right speakers 21 and 22 transmit sound by vibrating the user's ear bones and skull, providing an open listening experience. The battery 23 (also referred to as the power supply structure 117 in this disclosure) provides power, enabling the smart glasses 10 to achieve long standby times. The MIMO antenna 113 can provide data transmission for LTE technology.

[0071] In order to verify that the first antenna 111 and the second antenna 112 provided in the smart glasses of the present disclosure have good performance, the first antenna 111 and the second antenna 112 are simulated for impedance matching and average total efficiency. Figure 5 and Figure 6 As shown, the simulation results of the second antenna 112 are as follows Figure 7 and Figure 8 shown.

[0072] like Figure 5 As shown, Figure 5 This is a reflection coefficient curve diagram of the first antenna 111 provided by the present disclosure, in which 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. Figure 5 It can be seen from the figure that when the reflection coefficient of the first antenna 111 is -6, the operating bandwidth of the first antenna 111 is 1552.3 MHz to 1591 MHz, and the impedance matching performance of the first antenna 111 is good.

[0073] like Figure 6 As shown, Figure 6 This is a total efficiency curve of the first antenna 111 provided by the present disclosure, in which the horizontal axis represents the operating frequency of the first antenna 111 and the vertical axis represents the total efficiency of the first antenna 111. Figure 6 It can be seen from the figure that when the operating frequency of the first antenna 111 is 1552.3 MHz to 1591 MHz, the average total efficiency of the first antenna 111 is 54.2%, and the average total efficiency of the first antenna 111 is relatively good.

[0074] like Figure 7 As shown, Figure 7 The reflection coefficient curve of the second antenna 112 provided by the present disclosure is shown in FIG. The horizontal axis in the figure represents the operating frequency of the second antenna 112, and the vertical axis in the figure represents the reflection coefficient of the second antenna 112. Figure 7 It can be seen from FIG. 1 that when the reflection coefficient of the second antenna 112 is −6, the operating bandwidth of the second antenna 112 is 1171 MHz to 1188 MHz, and the impedance matching performance of the second antenna 112 is good.

[0075] like Figure 8 As shown, Figure 8 This is a total efficiency curve of the second antenna 112 provided by the present disclosure, in which the horizontal axis represents the operating frequency of the second antenna 112 and the vertical axis represents the total efficiency of the second antenna 112. Figure 8 It can be seen from FIG. 1 that when the operating frequency of the second antenna 112 is 1171 MHz to 1188 MHz, the average total efficiency of the second antenna 112 is 45%, and the average total efficiency of the second antenna 112 is better.

[0076] The following describes a communication method using the smart glasses provided by the present disclosure.

[0077] like Figure 9 As shown, Figure 9 A flow chart of a communication method for smart glasses provided in an embodiment of the present disclosure includes the following steps:

[0078] S101 : In response to an application processor receiving a first command, using a first antenna to communicate on an L1 frequency band of a GPS frequency, and using a second antenna to communicate on an L5 frequency band of a GPS frequency.

[0079] S102 : In response to the application processor receiving the second command, communicate using a multiple-input multiple-output antenna.

[0080] In the communication method of the smart glasses provided in the embodiment of the present disclosure, since the first antenna is used to communicate on the L1 frequency band of the GPS frequency, the second antenna is used to communicate on the L5 frequency band of the GPS frequency, and a multi-input multi-output antenna is used for communication, it is possible to provide high-speed data transmission and better signal quality, thereby realizing high-precision positioning and navigation that can be applied to the global satellite navigation system.

[0081] In one specific embodiment, using the first antenna to communicate in the L1 band of GPS frequencies includes: receiving satellite signals using the first antenna, and converting the satellite signals received by the first antenna into a first digital signal and transmitting it to the application processor. Specifically, the first antenna receives the satellite signals and transmits them to a radio frequency circuit. The radio frequency circuit converts the satellite signals received by the first antenna into a first digital signal, and the radio frequency circuit transmits the first digital signal to the application processor.

[0082] In one specific embodiment, using the second antenna to communicate in the L5 band of the GPS frequency includes: receiving satellite signals using the second antenna, converting the satellite signals received by the second antenna into a second digital signal, and transmitting the second digital signal to the application processor. Specifically, the second antenna receives the satellite signals and transmits the received satellite signals to the radio frequency circuit. The radio frequency circuit converts the satellite signals received by the second antenna into the second digital signal, and the radio frequency circuit transmits the second digital signal to the application processor.

[0083] In a specific embodiment, using a multiple-input multiple-output antenna to communicate includes: using a multiple-input multiple-output antenna to receive environmental data, and generating positioning data and navigation data based on the environmental data using orthogonal frequency division multiplexing technology and real-time dynamic carrier phase difference technology.

[0084] It should be noted that the environmental data includes satellite signals and other data in the environment where the user wearing the smart glasses is located, such as WIFI data.

[0085] Combining MIMO technology with orthogonal frequency division multiplexing (OFDM) can further improve spectrum efficiency. Orthogonal frequency division multiplexing (OFDM) reduces data bandwidth by converting high-speed data streams into parallel, lower-speed data streams. This reduces multipath fading in wireless environments and converts it into flat fading. This allows for efficient use of spectrum resources by ensuring that multiple carriers are orthogonal to each other.

[0086] 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.

[0087] In one embodiment, before the first antenna receives satellite signals, the second antenna receives satellite signals, and the multi-input multi-output antenna receives environmental data, the smart glasses are further initialized. For example, after the smart glasses are powered on, the application processor first performs system initialization, specifically initializing storage elements and hardware components (e.g., radio frequency circuits).

[0088] In a specific embodiment, the communication method of the smart glasses provided by the present disclosure also includes: the application processor forms location information based on the first digital signal, the second digital signal, the positioning data and the navigation data. Exemplarily, the application processor performs advanced positioning algorithm processing (such as Kalman filter processing, particle filter processing, etc.) on the received first digital signal, the second digital signal, the positioning data and the navigation data, and uses the positioning result after the advanced positioning algorithm processing as the location information. Since the digital signal comes from the satellite signal collected by the first antenna and the second antenna, the positioning data and the navigation data come from the combination of MIMO technology, orthogonal frequency division multiplexing technology and real-time dynamic carrier phase difference technology, the application processor can form high-precision location information after performing advanced positioning algorithm processing on these data, thereby achieving high-precision positioning and navigation.

[0089] In a specific embodiment, the communication method of the smart glasses provided by the present disclosure further includes: an application processor receives acceleration data and angular velocity data of a person wearing the smart glasses, and the application 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. Exemplarily, the smart glasses continuously collect the acceleration data and angular velocity data of the person wearing the smart glasses through an inertial measurement unit, and send them to the application processor through a serial interface. The application processor performs advanced positioning algorithm processing (such as Kalman filter processing, particle filter processing, etc.) on the received first digital signal, the second digital signal, the positioning data, the navigation data, the acceleration data and the angular velocity data, and uses the positioning result after the advanced positioning algorithm processing as the position information. Therefore, after the application processor performs advanced positioning algorithm processing on these data, it can further form high-precision position information, thereby achieving higher-precision positioning and navigation.

[0090] In one specific embodiment, the communication method for smart glasses provided by the present disclosure further includes: the application processor outputting the generated location information to the display screen of the smart glasses for display. Exemplarily, the application processor outputs the generated location information to the display screen of the smart glasses via a specific interface (e.g., a USB interface, a UART interface, and Bluetooth, etc.) for display. 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 generated location information based on the actual needs of the user.

[0091] In a specific embodiment, the display screen of the smart glasses is the lens of the smart glasses, and the application processor outputs the generated location information to the lens of the smart glasses through a specific interface. The user can intuitively obtain positioning data and navigation data through the lens, avoiding the inconvenience of the user looking down at the phone and improving the user experience.

[0092] In a specific embodiment, the communication method of the smart glasses provided by the present disclosure further includes: the application processor performs image processing based on the map data to generate a navigation screen and output it to the lenses of the smart glasses. Exemplarily, the application processor can also perform image processing on the real-time map based on the provided map data (such as 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 being able to perform high-precision positioning and navigation based on the signals received by the first antenna, the second antenna, and the multi-input multi-output antenna, the application processor in the present disclosure can also call existing map data and generate a navigation screen for navigation based on the map data.

[0093] The communication method of the smart glasses provided by the present disclosure is described below with reference to a specific embodiment.

[0094] like Figure 10 As shown, the communication method of the smart glasses includes steps 201 to 206. After the smart glasses 10 are powered on, the application processor 114 performs system initialization to enable each hardware component included in the smart glasses 10 to enter a new working state without being affected by the previous state, specifically performing S201.

[0095] After system initialization, application processor 114 responds to a first command from application processor 114 by using first antenna 111 to receive satellite signals, and converts the satellite signals received by first antenna 111 into first digital signals via RF circuit 116. In response to the first command from application processor 114, application processor 114 responds to a second command from second antenna 112 by using second antenna 112 to receive satellite signals, and converts the satellite signals received by second antenna 112 into second digital signals via RF circuit 116. The first and second digital signals are then sent to application processor 114, specifically, in step S202.

[0096] Further, in response to the second command of the application processor 114, the multi-input multi-output antenna 113 is used to receive environmental data, and based on the environmental data, orthogonal frequency division multiplexing technology and real-time dynamic carrier phase difference technology (i.e., RTK technology) are used to generate positioning data and navigation data, and the positioning data and the navigation data are sent to the application processor 114, specifically executing S203.

[0097] Furthermore, the acceleration data and angular velocity data of the user wearing the smart glasses are continuously collected through the inertial measurement unit 115, and the collected acceleration data and angular velocity data are sent to the application processor 114, specifically executing S204.

[0098] The application processor 114 performs advanced positioning algorithm processing (such as Kalman filter processing, particle filter processing, etc.) based 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, and specifically executes S205.

[0099] Finally, the application processor 114 outputs the generated location information to the lenses of the smart glasses 10 through a specific interface (such as a USB interface, a UART interface, and Bluetooth, etc.). The user can intuitively obtain the positioning data and navigation data through the lenses, avoiding the inconvenience of the user looking down at the phone, and improving the user experience. Specifically, S206 is executed.

[0100] In summary, the smart glasses and the communication method thereof provided by the embodiments of the present disclosure have the following beneficial technical effects:

[0101] The smart glasses provided by the present disclosure include a first antenna in the L1 frequency band and a second antenna in the L5 frequency band arranged at the frame of the smart glasses, as well as a multi-input multi-output antenna arranged at the temples of the smart glasses. Through the L1 and L5 dual-frequency antenna structure, 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 the global satellite navigation system, which is conducive to improving the accuracy and security of the positioning system.

[0102] In addition, since the first antenna and the second antenna are arranged on the frame of the smart glasses, and metal devices such as speakers and circuit boards are located on the temples of the smart glasses, the first antenna and the second antenna are far away from the metal devices, which can effectively improve the isolation between the two and have little impact on the performance of the antenna, thereby enhancing the working bandwidth and radiation efficiency of the antenna, thereby improving the accuracy of the smart glasses in positioning and navigation.

[0103] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this disclosure can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions of this disclosure can be achieved, and this document is not limited here.

[0104] The above specific embodiments do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this disclosure shall be included within the scope of protection of this disclosure.

[0105] The above description is merely an embodiment of the present disclosure and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of protection provided by the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the technical concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in the present disclosure.

Claims

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

2. The smart glasses according to claim 1, wherein: The mirror frame includes a left mirror frame and a right mirror frame; The first antenna is arranged in the top frame of the left frame, and the second antenna is arranged in the top frame of the right frame.

3. The smart glasses according to claim 2, wherein: 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, wherein: 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 mirror frame, a size of the first antenna ranges from 25 mm to 50 mm; and In a direction perpendicular to the mirror frame, a size of the first antenna ranges from 3 mm to 5 mm.

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

7. The smart glasses according to claim 1, wherein: The smart glasses further include an inertial measurement unit, which is disposed in the temple and integrated with the processor, and is communicatively coupled to the processor.

8. The smart glasses according to claim 1, wherein: The smart glasses further include a radio frequency circuit, which is arranged at a position of the temple close to the frame and integrated with the processor; The radio frequency circuit is connected to the first antenna, the second antenna and the processor respectively.

9. The smart glasses according to claim 8, characterized in that The smart glasses also include a storage element, which is arranged at a position of the temple close to the frame, connected to the processor, and integrated with the processor and the radio frequency circuit.

10. The smart glasses according to claim 9, wherein: The temples include a left temple and a right temple, and the smart glasses further include a power supply structure, and the power supply structure is connected to the processor; The multi-input multi-output antenna is arranged at the end of the left temple, and the power supply structure is arranged at the end of the right temple; or, the multi-input multi-output antenna is arranged at the end of the right temple, and the power supply structure is arranged at the end of the left temple.

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