Intelligent glasses

Abstract

The invention discloses intelligent glasses which comprise a glasses frame which is provided with two single-edge parts, each single-edge part comprises a lens frame and glasses legs, each lens frame is provided with an inner end and an outer end which are opposite in the left-right direction, and each glasses leg is connected to the outer end of the lens frame on the corresponding side; the antenna system comprises a feed point, an antenna A and an antenna B, the antenna A and the antenna B are coupled to the feed point, the feed point is close to the end of the upper edge of the lens frame, at least part of the antenna A is arranged on the upper edge of the lens frame, at least part of the antenna B is arranged on the side edge of the lens frame, the number of the antennas is larger, and the number of the antennas is larger. Therefore, the signal transmission rate is higher, the signal capacity is larger, the signal transmission performance is more stable, and the coverage range is larger.

Description

Technical Field

[0001] This application relates to intelligent wearable devices, and specifically, to a pair of intelligent glasses. Background Art

[0002] In recent years, wearable devices have been developing more towards miniaturization. Moreover, with the innovation of wireless communication technologies, wearable devices are usually integrated with antennas for radiating and / or receiving signals, enabling wearable devices to have wireless communication capabilities, and thus are also referred to as intelligent wearable devices, such as smart watches, smart bracelets, smart earplugs, and smart glasses.

[0003] The performance of the antenna directly affects the wireless communication capabilities of intelligent wearable devices. Among them, the length, direction, and number of antennas are important factors affecting antenna performance. Taking smart glasses as an example, limited by the available space, smart glasses on the market usually only have a relatively simple single-antenna system arranged on the temple. This single-antenna system has a low transmission rate, small capacity, poor reliability, and limited coverage range such as working frequency band and direction, resulting in limited communication scenarios for smart glasses. Moreover, after integrating the antenna system on smart glasses, the polarization direction of the antenna is determined once the arrangement method of the antenna is determined. However, when smart glasses are in different working states, such as when the smart glasses user makes posture changes such as looking up, looking down, or diving, it will drive the polarization direction of the antenna to change, easily causing the polarization direction of the antenna to deviate from the target transmission direction of the signal, thereby exacerbating signal transmission loss or even causing signal transmission failure, and also affecting the reliability of the antenna system.

[0004] Application Content

[0005] One advantage of this application is to provide smart glasses with more antennas, thus having a faster signal transmission rate, a larger signal capacity, a more stable signal transmission performance, and a larger coverage range.

[0006] Another advantage of this application is to provide smart glasses that can allow the polarization direction of the antenna system to be switched according to the pose change of the smart glasses, so that the smart glasses have excellent wireless communication performance in different poses.

[0007] To achieve the above at least one advantage or other advantages and purposes, this application provides smart glasses, including:

[0008] A spectacle frame having two unilateral parts, and each unilateral part includes a lens frame and a temple. Each lens frame has an inner end and an outer end opposite to each other in the left-right direction, and each temple is respectively connected to the outer end of the corresponding side lens frame;

[0009] An antenna system, including a feeding point, antenna A and antenna B coupled to the feeding point. The feeding point is adjacent to the end of the upper edge of the lens frame. At least a part of antenna A is disposed on the upper edge of the lens frame, and at least a part of antenna B is disposed on the side edge of the lens frame. In some embodiments of the present application, the feeding point includes a first feeding point and / or a second feeding point. The first feeding point is adjacent to the inner end of the upper edge of the lens frame, and the second feeding point is adjacent to the outer end of the upper edge of the lens frame. Antenna B includes a second antenna coupled to the first feeding point and / or a third antenna coupled to the second feeding point. At least a part of the second antenna is disposed on the inner end side edge of the lens frame, and at least a part of the third antenna is disposed on the outer end side edge of the lens frame.

[0010] In some embodiments of the present application, the spectacle frame is provided with a crossbar between two temple arms in the left-right direction. The crossbar includes an isolation part in the center and two sub-parts respectively located on the left and right sides, and each sub-part constitutes a part of the corresponding unilateral part.

[0011] The antenna system further includes a fourth antenna and / or a fifth antenna disposed on the sub-part. The first end of the fourth antenna is coupled to the first feeding point, and the first end of the fifth antenna is coupled to the second feeding point. In some embodiments of the present application, in the left-right direction, the sum of the lengths of the fourth antenna and the fifth antenna is greater than the length of the corresponding sub-part, and in space, the second ends of the fourth antenna and the fifth antenna are misaligned.

[0012] In some embodiments of the present application, the antenna system further includes a sixth antenna coupled to the second feeding point. The sixth antenna is disposed on the temple arm. In some embodiments of the present application, the temple arm includes a front part and a rear part. The rear part is used for being placed on the user's ear, and the front part connects the rear part and the lens frame.

[0013] Only the front part of the temple arm is provided with the sixth antenna.

[0014] Or, the sixth antenna includes a front segment and a rear segment coupled by a first switch. The front segment is disposed on the front part of the temple arm, and the rear segment is disposed on the rear part of the temple arm.

[0015] In some embodiments of the present application, antenna A includes a seventh antenna and / or an eighth antenna. The seventh antenna is coupled to the first feeding point, and the eighth antenna is coupled to the second feeding point.

[0016] In some embodiments of the present application, the temple arm includes a front part and a rear part. The rear part is used for being placed on the user's ear, and the front part connects the rear part and the lens frame.

[0017] When only the first feed point is provided, the seventh antenna includes a first antenna branch and a second antenna branch coupled by a second switch, or the seventh antenna includes a first antenna branch, a second antenna branch, and a third antenna branch coupled by a second switch. The first antenna branch is disposed on the upper edge of the lens frame, the second antenna branch is disposed on the front portion of the temple, and the third antenna branch is disposed on the rear portion of the temple.

[0018] In some embodiments of the present application, each unilateral part is integrated with one of the antenna systems.

[0019] In some embodiments of the present application, the spectacle frame further includes a nose pad connecting the inner ends of the two lens frames. The nose pad is integrated with a short circuit wire or a third switch, and the two ends of the short circuit wire or the two ends of the third switch are respectively coupled to the second antennas in the two unilateral parts.

[0020] In some embodiments of the present application, the antenna system is distributed in two unilateral systems.

[0021] In some embodiments of the present application, the second antenna includes a fourth antenna branch, a fifth antenna branch, a sixth antenna branch, and a seventh antenna branch. The fourth antenna branch is coupled to the first feed point, and the two lens frames are respectively a first lens frame and a second lens frame. At least a part of the fourth antenna branch is disposed on the inner end side edge of the second lens frame, at least a part of the fifth antenna branch is disposed on the inner end side edge of the first lens frame, the two ends of the sixth antenna branch are respectively coupled to the fourth antenna branch and the fifth antenna branch, the seventh antenna branch is coupled to the upper end of the fifth antenna branch, and at least a part of the seventh antenna branch is disposed on the upper edge of the first lens frame.

[0022] In some embodiments of the present application, a crossbar located between the two temples is provided along the left - right direction at the top of the spectacle frame. The antenna system further includes a ninth antenna, and the ninth antenna includes an eighth antenna branch and a ninth antenna branch. The eighth antenna branch is disposed on the crossbar, and the two ends of the ninth antenna branch are respectively coupled to the first feed point and the eighth antenna branch.

[0023] In some embodiments of the present application, the antenna A includes a first antenna, and the two ends of the first antenna are respectively coupled to the first feed point and the second feed point.

[0024] In some embodiments of the present application, a fourth switch is provided between each feed point and each antenna coupled to the corresponding feed point.

[0025] To achieve the above - mentioned at least one advantage or other advantages and purposes, the present application provides a smart glasses, which includes:

[0026] A spectacle frame, including a first lens frame, a second lens frame, and a nose pad connecting the first lens frame and the second lens frame;

[0027] An antenna system, comprising a switching device, an eleventh antenna branch, a twelfth antenna branch, a thirteenth antenna branch, and a fourteenth antenna branch. The switching device is disposed on the nose pad, and the switching device includes a third feed point, a fourth feed point, a first output terminal, a second output terminal, a third output terminal, a fourth output terminal, a fifth switch coupled between the first output terminal and the second output terminal, and a tenth switch coupled between the third output terminal and the fourth output terminal. The third feed point and the fourth feed point are coupled to one of the first output terminal, the second output terminal, the third output terminal, and the fourth output terminal, and / or the fourth feed point is coupled to one of the first output terminal, the second output terminal, the third output terminal, and the fourth output terminal. The first end of the eleventh antenna branch is coupled to the first output terminal, and the second end extends toward the upper edge of the first lens frame. The first end of the twelfth antenna branch is coupled to the second output terminal, and the second end extends toward the lower edge of the first lens frame. The first end of the thirteenth antenna branch is coupled to the third output terminal, and the second end extends toward the lower edge of the second lens frame. The first end of the fourteenth antenna branch is coupled to the fourth output terminal, and the second end extends toward the upper edge of the second lens frame. Moreover, the eleventh antenna branch is orthogonal to the twelfth antenna branch, and the thirteenth antenna branch is orthogonal to the fourteenth antenna branch.

[0028] In some embodiments of the present application, the switching device further includes a sixth switch coupled between the first output terminal and the third output terminal, a seventh switch coupled between the first output terminal and the fourth output terminal, an eighth switch coupled between the second output terminal and the third output terminal, and a ninth switch coupled between the second output terminal and the fourth output terminal. Description of the Drawings

[0029] Figure 1 is a schematic structural diagram of the first exemplary smart glasses according to the present application.

[0030] Figure 2 is a schematic structural diagram of the second exemplary smart glasses according to the present application.

[0031] Figure 3 is a schematic structural diagram of the third exemplary smart glasses according to the present application.

[0032] Figure 4 is a schematic structural diagram of the fourth exemplary smart glasses according to the present application.

[0033] Figure 5 is a schematic structural diagram of the fifth exemplary smart glasses according to the present application.

[0034] Figure 6 is a schematic structural diagram of the sixth exemplary smart glasses according to the present application.

[0035] Figure 7 It is a schematic structural diagram of the seventh exemplary smart glasses according to the present application.

[0036] Figure 8 It is a schematic structural diagram of the eighth exemplary smart glasses according to the present application.

[0037] Figure 9 It is a schematic structural diagram of the ninth exemplary smart glasses according to the present application.

[0038] Figure 10 It is a schematic structural diagram of the tenth exemplary smart glasses according to the present application.

[0039] Figure 11 It is a schematic structural diagram of the eleventh exemplary smart glasses according to the present application.

[0040] Figure 12 It is a schematic structural diagram of the twelfth exemplary smart glasses according to the present application.

[0041] Figure 13 It is a schematic structural diagram of the thirteenth exemplary smart glasses according to the present application.

[0042] Figure 14 It is a schematic structural diagram of the fourteenth exemplary smart glasses according to the present application.

[0043] Figure 15 It is a schematic structural diagram of the fifteenth exemplary smart glasses according to the present application.

[0044] Figure 16 It is a schematic structural diagram of the sixteenth exemplary smart glasses according to the present application.

[0045] Figure 17 It is a schematic structural diagram of the seventeenth exemplary smart glasses according to the present application.

[0046] Figure 18 It is a schematic structural diagram of the eighteenth exemplary smart glasses according to the present application.

[0047] Figure 19 It is a schematic structural diagram of the first exemplary switch device according to the present application.

[0048] Figure 20 It is a schematic structural diagram of the second exemplary switch device according to the present application.

[0049] Figure 21 It is a schematic structural diagram of the nineteenth exemplary smart glasses according to the present application.

[0050] Figure 22It is a schematic structural diagram of the third exemplary switch device according to the present application. Detailed implementation manners

[0051] Those skilled in the art should understand that in the disclosure of the present invention, the orientation or positional relationships indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the direction when the user wears the smart glasses.

[0052] In some embodiments, referring to Figure 1 the schematic structural diagram of the exemplary smart glasses shown, the smart glasses include a frame 100 and an antenna system. The frame 100 has two unilateral parts 101, and each unilateral part 101 includes a lens frame 1 and a temple 2. The two lens frames 1 are a first lens frame 1A and a second lens frame 1B respectively, and the two temples 2 are a first temple 2A and a second temple 2B respectively. The first lens frame 1A and the first temple 2A are located on the left side of the frame 100, and the second lens frame 1B and the second temple 2B are located on the right side of the frame 100. The first lens frame 1A and the second lens frame 1B both have opposite inner ends 1a and outer ends 1b in the left-right direction, and the first temple 2A is connected to the outer end 1b of the first lens frame 1A, and the second temple 2B is connected to the outer end 1b of the second lens frame 1B.

[0053] The present application does not limit the shape of the lens frame 1. The lens frame 1 can be a rectangular frame, a rectangular frame with rounded corners, a circular frame or an oval frame. The lens frame 1 can be a full frame or a semi-frame. Figures 1 to 17 Only an example of a rectangular full-frame lens frame 1 is given.

[0054] In some embodiments, referring to Figure 1 the schematic structural diagram of the exemplary smart glasses shown, both the first temple 2A and the second temple 2B include a front part 21 and a rear part 22. Each rear part 22 is for being placed on the user's ear, and each front part 21 connects the corresponding rear part 22 to the lens frame 1. This means that the front part 21 of the first temple 2A connects the rear part 22 of the first temple 2A to the first lens frame 1A, and the front part 21 of the second temple 2B connects the rear part 22 of the second temple 2B to the second lens frame 1B.

[0055] The present application does not limit the relative degrees of freedom between the lens frame 1 and the temple 2. It can be that the temple 2 can flip relative to the lens frame 1, such as the temple 2 is hinged to the lens frame 1 to switch between the folded state and the unfolded state of the smart glasses; it can also be that the temple 2 can telescope relative to the lens frame 1, such as the temple 2 is a telescopic rod itself, and a receiving space for the temple 2 to retract is provided at the edge of the lens frame 1; it can also be that the temple 2 is fixedly connected to the lens frame 1.

[0056] In some embodiments, referring to Figure 1 the schematic structural view of the exemplary smart glasses shown, the spectacle frame 100 further includes a nose pad 6, and the nose pad 6 connects the inner ends 1a of the first lens frame 1A and the second lens frame 1B together. The provision of the nose pad 6 is only to increase the support points of the spectacle frame 100 on the user's face, so that the smart glasses are not easily skewed when worn, and this improvement effect is more obvious in smart glasses with a heavier mass. It can be understood that in some other embodiments, the smart glasses can be provided with a support structure at other parts such as the temple 2 and the lens frame 1, or only rely on the support of the temple 2 for the spectacle frame 100, so that the smart glasses do not have the nose pad 6.

[0057] The statement that "the spectacle frame 100 has two single-sided parts 101" does not mean a limitation on the structure and molding process of the smart glasses. That is, the two lens frames 1 and the nose pad 6 can be integrally formed and then connected to the two temples 2, or the spectacle frame 100 can be integrally formed as a whole, or each single-sided part 101 can be integrally formed separately and then connected through the nose pad 6.

[0058] In some embodiments, referring to Figure 1 the schematic structural view of the exemplary smart glasses shown, a crossbar 5 is provided at the top of the spectacle frame 100, and the crossbar 5 extends in the left-right direction between the first temple 2A and the second temple 2B. And, the crossbar 5 includes a central isolation part 52 and two sub-parts 51 respectively located on the left and right sides, and each sub-part 51 constitutes a part of the corresponding single-sided part 101. In some other embodiments, referring to Figure 17 the schematic structural view of the exemplary smart glasses shown, the crossbar 5 is not provided with the isolation part 52.

[0059] This application does not limit the cross-sectional shape and attitude of the crossbar 5, and only defines that the crossbar 5 is in a long strip shape, and the length direction of the crossbar 5 is in the left-right direction. The crossbar 5 can be in a plate shape, a rod shape, a bar shape or other special-shaped structures. When the crossbar 5 is in a plate shape, the crossbar 5 can be horizontally arranged, vertically arranged or obliquely arranged.

[0060] In some embodiments, referring to Figures 2 to 15 the schematic structural view of the exemplary smart glasses shown, antenna systems are integrated in both single-sided parts 101. And in some other embodiments, referring to Figures 16 to 18Schematic structural diagram of the exemplary smart glasses shown. The antenna system can be distributed in two single-sided parts 101, that is, one part of the antenna system is arranged in the left single-sided part 101, and the other part of the antenna system is arranged in the right single-sided part 101. It can be understood that in other embodiments, the antenna system can be integrated only in one of the single-sided parts 101. Since the smart glasses are integrated with the antenna system, the smart glasses can access the wireless network through wireless signals to support local area network communication, voice and data cellular phone communication, global positioning system (GPS) communication, satellite navigation system communication, Bluetooth communication, etc.

[0061] In some embodiments, referring to Figure 2 Schematic structural diagram of the exemplary smart glasses shown. Each antenna system is a center-fed triple-band MIMO antenna system. Each antenna system includes a first feed point 31, and a seventh antenna 47, a second antenna 42, and a fourth antenna 44. The seventh antenna 47 forms antenna A, and the second antenna 42 forms antenna B. Each first feed point 31 is adjacent to the inner end 1a of the upper edge of the lens frame 1. Specifically, the first feed point 31 can be located at the inner end 1a of the upper edge of the lens frame 1, or can be located at the upper edge of the lens frame 1 (a position between the outer end 1b and the middle of the upper edge of the lens frame 1), or the side edge of the inner end 1a of the lens frame 1, or the crossbar 5, or can also be located in the accommodation space defined by the upper edge of the lens frame 1 and the crossbar 5, as long as the position of the first feed point 31 satisfies: in the left-right direction, the distance between the first feed point 31 and the inner end 1a of the upper edge of the lens frame 1 is less than the distance between the first feed point 31 and the outer end 1b of the upper edge of the lens frame 1. Each seventh antenna 47, second antenna 42, and fourth antenna 44 are all coupled to the corresponding first feed point 31. And each seventh antenna 47 is arranged on the upper edge of the lens frame 1, each second antenna 42 is arranged on the side edge of the inner end 1a of the lens frame 1, and each fourth antenna 44 is arranged on the sub-part 51 of the crossbar 5.

[0062] The antenna system involved in the foregoing embodiments includes a seventh antenna 47, a second antenna 42, and a fourth antenna 44, so that the lengths of different antennas can be reasonably set, enabling different antennas to cover different operating frequency bands, thereby broadening the coverage range of the antenna system, or enabling different antennas to cover similar operating frequency bands, making the capacity of the antenna system larger. The antenna system can be combined with a control system so that when some antennas are blocked or interfered, resulting in poor signal transmission performance, the control system controls antennas at different positions, with different operating coverage frequency bands, or different numbers of antennas to work, improving the anti-interference performance, thus making the signal transmission performance more stable, increasing the throughput of the signal, accelerating the signal transmission rate, and further enabling the antenna system to meet the requirements of more communication scenarios.

[0063] For the antenna system involved in the foregoing embodiments, since the antenna system needs to be powered, the power supply structure of the smart glasses, such as a circuit board, can be arranged at a position adjacent to the isolation part 52. Considering that the power supply structure usually includes metal parts that can affect the antenna signal transmission performance, for the antenna system involved in the foregoing embodiments, the antenna at the position adjacent to the isolation part 52 can be set to cover the high frequency band, and the antenna far from the isolation part 52 can be set to cover the middle frequency band or the low frequency band. For example, the seventh antenna 47 is set to cover GPS, the second antenna 42 is set to cover wifi2.4G+BT, and the fourth antenna 44 is set to cover wifi5G. Alternatively, the seventh antenna 47 is set to cover GPS, and the second antenna 42 and the fourth antenna 44 are both set to cover wifi2.4G+BT. The coverage frequency bands of the foregoing antennas are only examples and should not be construed as limitations on the coverage frequency bands of the antennas of the smart glasses antenna system. The coverage frequency bands of each antenna can also be changed according to the actual functional requirements of the smart glasses, such as covering the 3G, 4G, and 5G frequency bands for mobile communication. In the foregoing antenna system, the lengths of the seventh antenna 47, the second antenna 42, and the fourth antenna 44 are not limited. It can be understood that, under the same other conditions, the longer the length of the antenna, the higher the gain of the antenna, the farther the transmission distance of the antenna, and the lower the frequency band that the antenna can support for operation.

[0064] In some embodiments, referring to Figure 2 the schematic structural diagram of the exemplary smart glasses shown, the length of the seventh antenna 47 is less than the length of the upper edge of the lens frame 1, the second antenna 42 is less than the length of the inner end 1a side edge of the lens frame 1, and the length of the fourth antenna 44 is less than the length of the sub-part 51 of the crossbar 5. In some other embodiments, the length of the seventh antenna 47 is equal to the length of the upper edge of the lens frame 1, or the length of the seventh antenna 47 is greater than the length of the upper edge of the lens frame 1, and a part of the seventh antenna 47 extends to the outer end 1b side edge of the lens frame 1 (refer to Figure 3 the schematic structural diagram of the exemplary smart glasses shown), and even extends to the lower edge of the lens frame 1 (refer to Figure 5 the schematic structural diagram of the exemplary smart glasses shown); the second antenna 42 is equal to the length of the inner end 1a side edge of the lens frame 1, or the length of the second antenna 42 is greater than the length of the inner end 1a side edge of the lens frame 1, and a part of the second antenna 42 extends to the lower edge of the lens frame 1 (refer to Figure 4 and Figure 5The structural schematic diagram of the exemplary smart glasses shown), and even extends to the outer end 1b side edge of the lens frame 1; the length of the fourth antenna 44 is equal to the length of the sub - part 51 of the cross - beam 5. By designing the lengths of the seventh antenna 47 and / or the second antenna 42 and / or the fourth antenna 44, the space of the lens frame 1 can be more fully utilized to layout longer antennas, thereby improving the gain of the antennas and enabling the antennas to meet the length requirements for covering lower operating frequency bands.

[0065] This application does not limit the constraint structure between the antenna system and the spectacle frame 100, but only defines the relative position relationship between the antenna system and the spectacle frame 100. Among them, taking the relationship between the seventh antenna 47 and the lens frame 1 as an example: "The seventh antenna 47 is disposed on the upper edge of the lens frame 1" means that the position where the seventh antenna 47 is located corresponds to the upper edge of the lens frame 1. The seventh antenna 47 and the upper - edge frame of the lens frame 1 can be isolated from each other. For example, the cross - beam 5 and the upper edge of the lens frame 1 jointly define an accommodation space, or the surface of the cross - beam 5 close to the user's face defines an accommodation space, and the seventh antenna 47 is disposed in the accommodation space and corresponds to the upper edge of the lens frame 1; it can also be that the seventh antenna 47 is joined to the upper edge of the lens frame 1. For example, if the lens frame 1 is made of plastic and the seventh antenna 47 is a metal conductor, the seventh antenna 47 is embedded inside the lens frame 1 through an injection - molding process, or the seventh antenna 47 is mounted on the upper edge of the lens frame 1.

[0066] In some embodiments, referring to Figure 6 The structural schematic diagram of the exemplary smart glasses shown, each seventh antenna 47 includes a first antenna branch 471, a second antenna branch 472, and a third antenna branch 473. The first antenna branch 471 is disposed on the upper edge of the lens frame 1, the second antenna branch 472 is disposed on the front part 21 of the corresponding temple 2, and the third antenna branch 473 is disposed on the rear part 22 of the corresponding temple 2. Moreover, the first antenna branch 471 and the second antenna branch 472, and the second antenna branch 472 and the third antenna branch 473 are coupled through a second switch 72. By locally arranging a part of the seventh antenna 47 on the temple 2 and then controlling the length and distribution of the seventh antenna 47 through the second switch 72, the coverage range of the antenna system can be made wider.

[0067] In other embodiments, the seventh antenna 47 only includes the first antenna branch 471 and the second antenna branch 472, and does not include the third antenna branch 473. This design is considered because: the rear part 22 of the temple 2 usually directly contacts the user, so that the third antenna branch 473 is relatively close to the user, and the signal is more easily interfered, thus exacerbating the signal transmission loss.

[0068] In some embodiments, referring to Figure 7Schematic structural diagram of the exemplary smart glasses shown. Each antenna system is a side-fed four-band MIMO antenna system, and each antenna system includes a second feed point 32, as well as an eighth antenna 48, a third antenna 43, a fifth antenna 45, and a sixth antenna 46. The eighth antenna 48 forms antenna A, and the third antenna 43 forms antenna B. Each second feed point 32 is adjacent to the outer end 1b of the upper edge of the lens frame 1. Specifically, each second feed point 32 can be located at the outer end 1b of the upper edge of the lens frame 1, or can be located at the upper edge of the lens frame 1 (a position between the outer end 1b and the middle of the upper edge of the lens frame 1), or the side edge of the outer end 1b of the lens frame 1, or the crossbar 5 or the temple 2, and can also be located within the accommodation space defined by the upper edge of the lens frame 1 and / or the crossbar 5 and / or the temple 2, as long as the position of the second feed point 32 satisfies: in the left-right direction, the distance between the second feed point 32 and the inner end 1a of the upper edge of the lens frame 1 is greater than the distance between the second feed point 32 and the outer end 1b of the upper edge of the lens frame 1. The eighth antenna 48, the third antenna 43, the fifth antenna 45, and the sixth antenna 46 are all coupled to the corresponding second feed point 32. And each eighth antenna 48 is disposed on the upper edge of the corresponding lens frame 1, each third antenna 43 is disposed on the side edge of the outer end 1b of the corresponding lens frame 1, each fifth antenna 45 is disposed on a sub-part 51 of the corresponding crossbar 5, and each sixth antenna 46 is disposed on the corresponding temple 2.

[0069] The antenna system involved in the foregoing embodiment includes an eighth antenna 48, a third antenna 43, a fifth antenna 45, and a sixth antenna 46, so that it is possible to reasonably set the lengths of different antennas, enable different antennas to cover different operating frequency bands, and thus broaden the coverage range of the antenna system, or enable different antennas to cover similar operating frequency bands, making the capacity of the antenna system larger. The antenna system can be combined with a control system. When some antennas are blocked or interfered, resulting in poor signal transmission performance, the control system controls the antennas at different positions, with different operating coverage frequency bands, or different numbers of antennas to work, improving the anti-interference performance, making the signal transmission performance more stable, increasing the throughput of the signal, and accelerating the signal transmission rate, so that the antenna system can meet the requirements of more communication scenarios.

[0070] For the antenna system involved in the foregoing embodiments, since the antenna system needs to be powered, the power supply structure of the smart glasses, such as a circuit board, can be arranged at the temple part. Considering that the power supply structure usually has metal parts that can affect the antenna signal transmission performance, for the antenna system involved in the foregoing embodiments, the antenna near the temple 2 can be set to cover the high frequency band, and the antenna far from the temple 2 can be set to cover the middle frequency band or the low frequency band. For example, the eighth antenna 48 is set to cover wifi2.4G+BT, the third antenna 43 is set to cover the mobile communication B3 band, the fifth antenna 45 is set to cover the wifi5G band, the sixth antenna 46 is set to cover the mobile communication B5 band, or the eighth antenna 48 is set to cover wifi2.4G+BT, both the third antenna 43 and the sixth antenna 46 are set to cover the mobile communication B3 band, and the fifth antenna 45 is set to cover wifi5G.

[0071] In some embodiments, the length of each eighth antenna 48 is equal to the length of the upper edge of the corresponding spectacle frame 1 (refer to Figure 7 the structural schematic diagram of the exemplary smart glasses shown), in some other embodiments, the length of the eighth antenna 48 is less than the length of the upper edge of the corresponding spectacle frame 1, or the length of each eighth antenna 48 is greater than the length of the upper edge of the corresponding spectacle frame 1, and each eighth antenna 48 extends to the inner end 1a side edge of the corresponding spectacle frame 1 (refer to Figure 8 the structural schematic diagram of the exemplary smart glasses shown), and even extends to the lower edge of the corresponding spectacle frame 1 (refer to Figure 10 the structural schematic diagram of the exemplary smart glasses shown). In some embodiments, the length of each third antenna 43 is less than the length of the outer end 1b side edge of the corresponding spectacle frame 1 (refer to Figure 7 the structural schematic diagram of the exemplary smart glasses shown), in some other embodiments, the length of each third antenna 43 is equal to the length of the outer end 1b side edge of the corresponding spectacle frame 1, or the length of each third antenna 43 is greater than the length of the outer end 1b side edge of the corresponding spectacle frame 1, and the third antenna 43 extends to the lower edge of the corresponding spectacle frame 1 (refer to Figure 9 and Figure 10 the structural schematic diagrams of the exemplary smart glasses shown), and even extends to the inner end 1a side edge of the corresponding lens frame 1. In some embodiments, the length of each fifth antenna 45 is less than the length of the corresponding sub-part 51 (refer to Figure 7 the structural schematic diagram of the exemplary smart glasses shown), in some other embodiments, the length of each fifth antenna 45 is equal to the length of the corresponding sub-part 51 (refer to Figure 11 the structural schematic diagram of the exemplary smart glasses shown).

[0072] In some embodiments, each sixth antenna 46 is only arranged at the front part of the corresponding temple 2 (refer toFigures 7 to 11 (structural schematic diagram of the exemplary smart glasses shown). In some other embodiments, each sixth antenna 46 includes a front section 461 and a rear section 462. The front section 461 of each sixth antenna 46 is disposed at the front portion 21 of the temple 2, and the rear section 462 of each sixth antenna 46 is disposed at the rear portion 22 of the temple 2. Moreover, the front section 461 and the rear section 462 of each sixth antenna 46 are coupled through a first switch 71 (refer to Figure 12 (structural schematic diagram of the exemplary smart glasses shown), so that the length of the sixth antenna 46 can be switched through the first switch 71, enabling the sixth antenna 46 to meet the length requirement for covering a lower operating frequency band.

[0073] In some embodiments, refer to Figure 13 (structural schematic diagram of the exemplary smart glasses shown). Each antenna system is a one-to-four frequency 2*2 to 4*4 MIMO antenna system, and each antenna system includes a first feed point 31, a second feed point 32, and a first antenna 41, a second antenna 42, a third antenna 43, a fourth antenna 44, a fifth antenna 45, and a sixth antenna 46. The first antenna 41 constitutes antenna A, and the second antenna 42 and the third antenna 43 constitute antenna B. Each first feed point 31 is adjacent to the inner end 1a of the upper edge of the corresponding lens frame 1, and each second feed point 32 is adjacent to the outer end 1b of the upper edge of the corresponding lens frame 1. Each first antenna 41 is disposed at the upper edge of the corresponding lens frame 1, and both ends of each first antenna 41 are respectively coupled to the corresponding first feed point 31 and second feed point 32. Each second antenna 42 is coupled to the corresponding first feed point 31, and each second antenna 42 is disposed at the side edge of the inner end 1a of the corresponding lens frame 1. Each third antenna 43 is coupled to the corresponding second feed point 32, and each third antenna 43 is disposed at the side edge of the outer end 1b of the corresponding lens frame 1. The first end of each fourth antenna 44 is coupled to the corresponding first feed point 31, and each fourth antenna 44 is disposed at a sub-part 51 of the corresponding crossbar 5. The first end of each fifth antenna 45 is coupled to the corresponding second feed point 32, and each fifth antenna 45 is disposed at a sub-part 51 of the corresponding crossbar 5. Each sixth antenna 46 is coupled to the corresponding second feed point 32, and each sixth antenna 46 is disposed at the corresponding temple 2.

[0074] The antenna system involved in the foregoing embodiments can set the antenna system on both the spectacle frame 1 and the temple 2 of the spectacle frame 100, so as to make more full use of the space of the spectacle frame 100 to arrange more feeding points and antennas, thereby enabling reasonable setting of the lengths of different antennas, enabling different antennas to cover different operating frequency bands, further broadening the coverage range of the antenna system, or enabling different antennas to cover similar operating frequency bands to increase the capacity of the antenna system. The antenna system can be combined with a control system so that when some antennas are blocked or interfered, resulting in poor signal transmission performance, the control system switches the feeding points at different positions or in different quantities, and the antennas at different positions or in different quantities or with different operating coverage frequency bands to work, improving the anti-interference performance, making the signal transmission performance more stable, increasing the throughput of the signal, and accelerating the signal transmission rate, so that the antenna system can meet the requirements of more communication scenarios.

[0075] In the antenna system involved in the foregoing embodiments, the first antenna 41 located in the left unilateral part 101 can be set to cover the mobile communication B40 frequency band, the second antenna 42 and the third antenna 43 located in the left unilateral part 101 can be set to cover the mobile communication B3 frequency band, the sixth antenna 46 located in the left edge part 101 can be set to cover the mobile communication B5 frequency band, the fifth antenna 45 located in the left unilateral part 101 and the right unilateral part 101 can be set to cover the wifi2.4G+BT frequency band, the first antenna 41 located in the right unilateral part 101 can be set to cover GPS, the fourth antenna 44 and the third antenna 43 located in the right unilateral part 101 can be set to cover wifi5G, and the sixth antenna 46 located in the right unilateral part 101 can be set to cover GPS.

[0076] In the antenna system involved in the foregoing embodiments, in the left-right direction, the sum of the lengths of the fourth antenna 44 and the fifth antenna 45 is greater than the length of the corresponding sub-part 51, and in space, the second end of the fourth antenna 44 and the second end of the fifth antenna 45 are misaligned, so as to reduce the signal mutual interference between the fourth antenna 44 and the fifth antenna 45. Herein, "misaligned" means that there is a gap between the second end of the fourth antenna 44 and the second end of the fifth antenna 45 in a direction substantially perpendicular to the extension direction of the cross beam 5, which can be the front-back direction or the vertical direction. Refer to Figure 13 the structural schematic diagram of the exemplary smart glasses shown, the second end of the fifth antenna 45 is located in front of the second end of the fourth antenna 44.

[0077] In some embodiments, refer to Figure 14Schematic structural diagram of the exemplary smart glasses shown. Each antenna system can implement a one - to - four - frequency 2×2 to 4×4 MIMO antenna system, and each antenna system includes a first feed point 31, a second feed point 32, and a second antenna 42, a third antenna 43, a fourth antenna 44, a fifth antenna 45, a sixth antenna 46, a seventh antenna 47, and an eighth antenna 48. The seventh antenna 47 and the eighth antenna 48 together form antenna A, and the second antenna 42 and the third antenna 43 together form antenna B. Each first feed point 31 is adjacent to the inner end 1a of the upper edge of the corresponding lens frame 1, and each second feed point 32 is adjacent to the outer end 1b of the upper edge of the corresponding lens frame 1. Each seventh antenna 47 is disposed on the upper edge of the corresponding lens frame 1, and each seventh antenna 47 is coupled to the corresponding first feed point 31. Each eighth antenna 48 is disposed on the upper edge of the corresponding lens frame 1, and each eighth antenna 48 is coupled to the corresponding second feed point 32. Each second antenna 42 is coupled to the corresponding first feed point 31, and each second antenna 42 is disposed on the side edge of the inner end 1a of the corresponding lens frame 1. Each third antenna 43 is coupled to the corresponding second feed point 32, and each third antenna 43 is disposed on the side edge of the outer end 1b of the corresponding lens frame 1. The first end of each fourth antenna 44 is coupled to the corresponding first feed point 31, and each fourth antenna 44 is disposed on the sub - part 51 of the corresponding crossbar 5. The first end of each fifth antenna 45 is coupled to the corresponding second feed point 32, and each fifth antenna 45 is disposed on the sub - part 51 of the corresponding crossbar 5. Each sixth antenna 46 is coupled to the corresponding second feed point 32, and each sixth antenna 46 is disposed on the corresponding temple 2.

[0078] It can be understood that the antenna system involved in this application can be used in combination with a control system. The control system selects some or all of the antennas with the best signal transmission performance in the antenna system according to the working environment, working scenarios, etc. of the smart glasses to improve the wireless communication quality. For example, when the smart glasses user moves from an open outdoor area to a crowded and noisy block, the working environment of the smart glasses changes. The signal is blocked by buildings, interfered by noise, or when the smart glasses user wears a metal object on the head or blocks a part of the smart glasses when raising the hand, it will also interfere with the wireless signal, exacerbate the signal loss during transmission, affect the transmission distance and penetration ability of the signal, and even cause the signal transmission to fail; in the two scenarios of making a call and playing a game, the corresponding wireless signal frequency bands are different.

[0079] The following provides some exemplary implementation methods for the control system to switch antennas.

[0080] The control system generally includes a signal monitor and a controller coupled to the antenna system. The signal monitor can detect the signal parameters of each antenna and transmit the signal parameters to the controller. The signal parameters include signal-to-noise ratio (SNR), delay spread value, etc. The controller can compare the signal parameters with the target threshold and select the antennas that meet the requirements of wireless communication based on the comparison results. The aforementioned "meeting the requirements of wireless communication" refers to the operating frequency band that the antenna can cover, the number of antennas, or the direction of the antennas, etc. For example, when the communication performance of the low-frequency band antenna is poor, it can be switched to the medium-frequency band or high-frequency band antenna for operation; when the communication performance of a single antenna is poor, it can be switched to multiple antennas for simultaneous operation; when the communication performance of the antenna in the horizontal polarization direction is poor, it can be switched to the antenna in the vertical polarization direction for operation.

[0081] In some embodiments, the operating state of the antenna system can be controlled only through the cooperation of the signal detector and the controller. For example, the signal detector and the controller are used to continuously monitor and analyze all antennas during the operation of the antenna system and match the best antennas in various working environments or scenarios. Further, in order to reduce the monitoring quantity and frequency of the signal detector to accelerate the operation rate of the control system and save energy consumption, the algorithm of the control system can be optimized. For example, the antennas in the antenna system are divided into the first area, the second area... By default, the antennas in the first area work in the initial state. First, only the working state of the antennas in the first area can be analyzed. If the working state of the antennas in the first area does not meet the target requirements, then the working states of the antennas in the remaining areas are analyzed and judged in a certain order until the best antennas are selected.

[0082] In some other embodiments, sensors can be used to preliminarily judge the working environment and working state of the smart glasses, so as to lock the monitoring objects of the signal detector and the controller in the local antennas, and then the best antennas are selected through the signal detector and the controller. The sensors can be motion sensors and / or proximity sensors. The motion sensors include accelerometers, gyroscopes, etc., and the motion sensors are used to judge the pose of the smart glasses. The proximity sensors can also be proximity switches, and the proximity sensors are used to judge whether there are obstacles approaching around the smart glasses.

[0083] In some embodiments, referring to Figure 6 and Figure 12 the schematic structural diagram of the exemplary smart glasses shown, a fourth switch 74 is provided between each feed point and each antenna coupled to the corresponding feed point, so that the effect of multi-frequency operation or time-division switching can be achieved by controlling the opening or closing of each fourth switch 74.

[0084] In some embodiments, when both the first lens frame 1A and the second lens frame 1B are integrated with the second antenna 42, referring to Figure 6Schematic structural diagram of an exemplary pair of smart glasses. The nose pad 6 is integrated with a third switch 73. Two ends of the third switch 73 are respectively coupled to second antennas 42 within two single-sided parts 101. If the third switch 73 is closed, the antenna systems of the two single-sided parts 101 are independent of each other and do not interfere with each other. If the third switch 73 is opened, when one of the antenna systems is operating, both of the second antennas 42 can transmit signals; when both antenna systems are operating, the third switch 73 can short-circuit the two second antennas 42, which can improve the isolation degree of the two second antennas 42 and avoid the problem of poor throughput of the MIMO system caused by poor isolation degree.

[0085] In some other embodiments, when both the first lens frame 1A and the second lens frame 1B are integrated with second antennas 42, referring to Figure 15 Schematic structural diagram of an exemplary pair of smart glasses. The nose pad 6 is integrated with a short circuit wire 9. Two ends of the short circuit wire 9 are respectively coupled to second antennas 42 within two single-sided parts 101. The setting of the short circuit wire 9 can also improve the isolation degree of the two second antennas 42, thereby improving the throughput of the antenna system. It can be understood that the current neutralization effect can also be achieved by adjusting the length of the short circuit wire 9, so as to avoid the interference of the communication performance of the two second antennas 42 with each other.

[0086] In some other embodiments, referring to Figure 16 Schematic structural diagram of an exemplary pair of smart glasses. The antenna system is a center-fed four-frequency antenna system, and the antenna system includes a first feed point 31, a seventh antenna 47, and a second antenna 42. The seventh antenna 47 constitutes antenna A, and the second antenna 42 constitutes antenna B. The first feed point 31 is adjacent to the inner end 1a of the upper edge of the second lens frame 1B. The seventh antenna 47 is coupled to the first feed point 31, and the seventh antenna 47 is disposed on the upper edge of the second lens frame 1B. The second antenna 42 includes a fourth antenna branch 421, a fifth antenna branch 422, a sixth antenna branch 423, and a seventh antenna branch 424. The fourth antenna branch 421 is coupled to the first feed point 31, and the fourth antenna branch 421 is disposed on the side edge of the inner end 1a of the second lens frame 1B. At least a part of the fifth antenna branch 422 is disposed on the side edge of the inner end 1a of the first lens frame 1A. Two ends of the sixth antenna branch 423 are respectively coupled to the fourth antenna branch 421 and the fifth antenna branch 422. The seventh antenna branch 424 is coupled to the upper end of the fifth antenna branch 422, and the seventh antenna branch 424 is disposed on the upper edge of the first lens frame 1A.

[0087] In some embodiments, referring to Figure 16Schematic diagram of the structure of the exemplary smart glasses shown. The fifth antenna branch 422 includes a first part 422a and a second part 422b. The first part 422a is disposed on the side edge of the inner end 1a of the first lens frame 1A, and the second part 422b is disposed on the lower edge of the first lens frame 1A, and the second part 422b is coupled to the lower end of the first part 422a, so as to be able to extend the length of the fifth antenna branch 422.

[0088] In some other embodiments, the fifth antenna branch 422 further includes a third part disposed on the side edge of the outer end of the first lens frame 1A, and the third part is coupled to the left end of the second part 422b. The length of the seventh antenna branch 424 is greater than the length of the upper edge of the first lens frame 1A, and the seventh antenna branch 424 extends to the side edge of the outer end 1b of the first lens frame 1A.

[0089] In some embodiments, referring to Figure 17 Schematic diagram of the structure of the exemplary smart glasses shown. The antenna system further includes a ninth antenna 49. The ninth antenna 49 includes an eighth antenna branch 491 and a ninth antenna branch 492. The eighth antenna branch 491 is disposed on the crossbar 5, and both ends of the ninth antenna branch 492 are respectively coupled to the first feed point 31 and the eighth antenna branch 491.

[0090] The antenna systems involved in the foregoing embodiments include a first feed point 31, a seventh antenna 47, a second antenna 42, and a ninth antenna 49. Both the second antenna 42 and the ninth antenna 49 include at least two branches, so as to be able to reasonably set the lengths of different antennas, enable different antennas to cover different operating frequency bands, thereby broadening the coverage range of the antenna system, or enable different antennas to cover similar operating frequency bands, making the capacity of the antenna system larger. The antenna system can be combined with a control system. When some antennas are blocked or interfered, resulting in poor signal transmission performance, the control system switches to antennas with different positions, different numbers, or different operating coverage frequency bands to work, improving the anti-interference performance, making the signal transmission performance more stable, increasing the throughput of the signal, and accelerating the signal transmission rate, so that the antenna system can meet the requirements of more communication scenarios.

[0091] In some other embodiments, referring to Figure 18 、 Figure 19 and Figure 20Schematic structural diagram of the exemplary smart glasses shown. The antenna system is a center-fed MIMO antenna system, and the antenna system includes a switching device, an eleventh antenna branch 401, a twelfth antenna branch 402, a thirteenth antenna branch 403, and a fourteenth antenna branch 404. The switching device is disposed on the nose pad 6, and the switching device includes a third feed point 33, a fourth feed point 34, a first output terminal 81, a second output terminal 82, a third output terminal 83, a fourth output terminal 84, a fifth switch 75, and a tenth switch 70. The third feed point 33 is coupled to one of the first output terminal 81, the second output terminal 82, the third output terminal 83, and the fourth output terminal 84. The fourth feed point 34 is coupled to the fifth switch 75 which is coupled to one of the first output terminal 81, the second output terminal 82, the third output terminal 83, and the fourth output terminal 84. The fifth switch 75 is coupled between the first output terminal 81 and the second output terminal 82. The tenth switch 70 is coupled between the third output terminal 83 and the fourth output terminal 84. The first end of the eleventh antenna branch 401 is coupled to the first output terminal 81, and the second end extends toward the upper edge of the first lens frame 1A. The first end of the twelfth antenna branch 402 is coupled to the second output terminal 82, and the second end extends toward the lower edge of the first lens frame 1A. The first end of the thirteenth antenna branch 403 is coupled to the third output terminal 83, and the second end extends toward the lower edge of the second lens frame 1B. The first end of the fourteenth antenna branch 404 is coupled to the fourth output terminal 84, and the second end extends toward the upper edge of the second lens frame 1B. Moreover, the eleventh antenna branch 401 is orthogonal to the twelfth antenna branch 402, and the thirteenth antenna branch 403 is orthogonal to the fourteenth antenna branch 404.

[0092] In some embodiments, the eleventh antenna branch 401 and the fourteenth antenna branch 404 are horizontally polarized, and the twelfth antenna branch 402 and the thirteenth antenna branch 403 are vertically polarized. Thus, when the fifth switch 75 is closed, the eleventh antenna branch 401 and the twelfth antenna branch 402 can work simultaneously to jointly cover the vertical plane and the horizontal plane. When the tenth switch 70 is closed, the thirteenth antenna branch 403 and the fourteenth antenna branch 404 can work simultaneously to jointly cover the vertical plane and the horizontal plane. In some other embodiments, the eleventh antenna branch 401 and the fourteenth antenna branch 404 are vertically polarized, and the second antenna branch 402 and the thirteenth antenna branch 403 are horizontally polarized.

[0093] In some embodiments, referring to Figure 19Schematic structural diagram of an exemplary switch device of the smart glasses shown. The switch device 200 further includes a first single-pole double-throw switch 301 and a second single-pole double-throw switch 302. The first single-pole double-throw switch 301 is configured to selectively couple the third feed point 33 to the first output terminal 81 and the second output terminal 82. The second single-pole double-throw switch 302 is configured to selectively couple the fourth feed point 34 to the third output terminal 83 and the fourth output terminal 84. In this way, when it is necessary for the eleventh antenna branch 401 and / or the twelfth antenna branch 402 to work, the third feed point 33 and the first single-pole double-throw switch 301 need to work simultaneously. When it is necessary for the third antenna branch 403 and / or the fourth antenna branch 404 to work, the fourth feed point 34 and the second single-pole double-throw switch 302 need to work simultaneously.

[0094] In some other embodiments, refer to Figure 20 Schematic structural diagram of an exemplary switch device of the smart glasses shown. The switch device 200 further includes a first single-pole four-throw switch 303 and a second single-pole four-throw switch 304. The first single-pole four-throw switch 303 is configured to selectively couple the third feed point 33 to the first output terminal 81, the second output terminal 82, the third output terminal 83, and the fourth output terminal 84. The second single-pole four-throw switch 304 is configured to selectively couple the fourth feed point 34 to the first output terminal 81, the second output terminal 82, the third output terminal 83, and the fourth output terminal 84. In this way, when it is necessary for one or two of the eleventh antenna branch 401, the twelfth antenna branch 402, the thirteenth antenna branch 403, and the fourteenth antenna branch 404 to work, it is possible to select the third feed point 33 and the first four-throw switch 303 to work, or it is possible to select the fourth feed point 34 and the second four-throw switch 304 to work. For example, when it is necessary for only the eleventh antenna branch 401 to work, it is possible to select the first four-throw switch 303 to couple the third feed point 33 and the first output terminal 81, or it is also possible to select the second four-throw switch 304 to couple the fourth feed point 34 and the first output terminal 81.

[0095] Through the position and polarization direction distribution of the eleventh antenna branch 401, the twelfth antenna branch 402, the thirteenth antenna branch 403, and the fourteenth antenna branch 404, the antenna system can cover a variety of polarization directions. The setting of the switch device can switch the antennas and feed points working in the antenna system by opening or closing different switches, and further switch the polarization direction of the antenna system to achieve coverage of different regions. In this way, when the smart glasses user makes posture changes such as looking up, looking down, or diving, the switch device can be used to select the antenna combination with the best polarization direction to work, so as to reduce the loss of antenna signal transmission and further improve the communication performance of the antenna system.

[0096] In some other embodiments, refer to Figure 20 andFigure 21 Schematic diagram of the structure of the exemplary smart glasses shown. The antenna system further includes a sixth switch 76, a seventh switch 77, an eighth switch 78, and a ninth switch 79. The sixth switch 76 is coupled between the first output terminal 81 and the third output terminal 83. The seventh switch 77 is coupled between the first output terminal 81 and the fourth output terminal 84. The eighth switch 78 is coupled between the second output terminal 82 and the third output terminal 83. The ninth switch 79 is coupled between the second output terminal 82 and the fourth output terminal 84..

[0097] For the aforementioned antenna system, the following provides an implementation manner of antenna switching: When only the seventh switch 77 and the eighth switch 78 are closed, the antenna system can achieve horizontal polarization and vertical plane coverage, enabling the antenna system to have better communication performance when the smart glasses user is in a pitching posture. When only the fifth switch 75 and the tenth switch 70 are closed, the antenna system can achieve vertical polarization and horizontal plane coverage, enabling the antenna system to have better communication performance when the smart glasses user shakes their head left and right. When only the sixth switch 76 and the ninth switch 79 are closed, the antenna system can achieve 45-degree polarization and cross coverage, enabling the antenna system to have better communication performance when the smart glasses user tilts their head to the left or right side.

Claims

1. Smart glasses, characterized in that, comprising: A spectacle frame having two single-sided parts, and each single-sided part includes a lens frame and a temple. Each lens frame has opposite inner and outer ends in the left-right direction, and each temple is respectively connected to the outer end of the corresponding lens frame; An antenna system including a feeding point, antenna A and antenna B coupled to the feeding point. The feeding point is adjacent to the end of the upper edge of the lens frame. At least a part of antenna A is disposed on the upper edge of the lens frame, and at least a part of antenna B is disposed on the side edge of the lens frame.

2. The smart glasses according to claim 1, characterized in that, The feeding point includes a first feeding point and / or a second feeding point. The first feeding point is adjacent to the inner end of the upper edge of the lens frame, and the second feeding point is adjacent to the outer end of the upper edge of the lens frame. Antenna B includes a second antenna coupled to the first feeding point and / or a third antenna coupled to the second feeding point. At least a part of the second antenna is disposed on the inner end side edge of the lens frame, and at least a part of the third antenna is disposed on the outer end side edge of the lens frame.

3. The smart glasses according to claim 2, characterized in that, A cross beam is provided along the left-right direction at the top of the spectacle frame between the two temples. The cross beam includes a central isolation part and two sub-parts respectively located on the left and right sides. Each sub-part constitutes a part of the corresponding single-sided part; The antenna system further includes a fourth antenna and / or a fifth antenna disposed on the sub-part. The first end of the fourth antenna is coupled to the first feeding point, and the first end of the fifth antenna is coupled to the second feeding point.

4. The smart glasses according to claim 3, characterized in that, In the left-right direction, the sum of the lengths of the fourth antenna and the fifth antenna is greater than the length of the corresponding sub-part, and in space, the second ends of the fourth antenna and the fifth antenna are misaligned.

5. The smart glasses according to claim 2, characterized in that, The antenna system further includes a sixth antenna coupled to the second feeding point, and the sixth antenna is disposed on the temple.

6. The smart glasses according to claim 5, characterized in that, The temple includes a front part and a rear part. The rear part is for resting on the user's ear, and the front part connects the rear part and the lens frame; Only the front part of the temple is provided with the sixth antenna; Or, the sixth antenna includes a front segment and a rear segment coupled by a first switch. The front segment is disposed on the front part of the temple, and the rear segment is disposed on the rear part of the temple.

7. The smart glasses according to claim 2, characterized in that, Antenna A includes a seventh antenna and / or an eighth antenna. The seventh antenna is coupled to the first feeding point, and the eighth antenna is coupled to the second feeding point.

8. The smart glasses according to claim 7, characterized in that, The temple includes a front part and a rear part. The rear part is for resting on the user's ear, and the front part connects the rear part and the lens frame; When only the first feeding point is provided, the seventh antenna includes a first antenna branch and a second antenna branch coupled by a second switch, or the seventh antenna includes a first antenna branch, a second antenna branch, and a third antenna branch coupled by a second switch. The first antenna branch is disposed on the upper edge of the lens frame, the second antenna branch is disposed on the front part of the temple, and the third antenna branch is disposed on the rear part of the temple.

9. The smart glasses according to claim 2, wherein, each unilateral part is integrated with one of the antenna systems.

10. The smart glasses according to claim 9, wherein, the spectacle frame further includes a nose pad connecting the inner ends of the two lens frames, and the nose pad is integrated with a short circuit wire or a third switch, and two ends of the short circuit wire or two ends of the third switch are respectively coupled to the second antennas in the two unilateral parts.

11. The smart glasses according to claim 2, wherein, the antenna system is distributed in two unilateral systems.

12. The smart glasses according to claim 11, wherein, the second antenna includes a fourth antenna branch, a fifth antenna branch, a sixth antenna branch, and a seventh antenna branch. The fourth antenna branch is coupled to the first feeding point. Let the two lens frames be a first lens frame and a second lens frame respectively. At least a part of the fourth antenna branch is disposed on the inner end side edge of the second lens frame, at least a part of the fifth antenna branch is disposed on the inner end side edge of the first lens frame, two ends of the sixth antenna branch are respectively coupled to the fourth antenna branch and the fifth antenna branch, the seventh antenna branch is coupled to the upper end of the fifth antenna branch, and at least a part of the seventh antenna branch is disposed on the upper edge of the first lens frame.

13. The smart glasses according to claim 12, wherein, a cross beam located between the two temples is provided along the left - right direction at the top of the spectacle frame. The antenna system further includes a ninth antenna, and the ninth antenna includes an eighth antenna branch and a ninth antenna branch. The eighth antenna branch is disposed on the cross beam, and two ends of the ninth antenna branch are respectively coupled to the first feeding point and the eighth antenna branch.

14. The smart glasses according to claim 2, wherein, the antenna A includes a first antenna, and two ends of the first antenna are respectively coupled to the first feeding point and the second feeding point.

15. The smart glasses according to any one of claims 1 to 14, wherein, a fourth switch is provided between each feeding point and each antenna coupled to the corresponding feeding point.

16. Smart glasses, wherein, comprising: a spectacle frame including a first lens frame, a second lens frame, and a nose pad connecting the first lens frame and the second lens frame; An antenna system, comprising a switching device, an eleventh antenna branch, a twelfth antenna branch, a thirteenth antenna branch, and a fourteenth antenna branch. The switching device is disposed on the nose pad, and the switching device includes a third feed point, a fourth feed point, a first output terminal, a second output terminal, a third output terminal, a fourth output terminal, a fifth switch coupled between the first output terminal and the second output terminal, and a tenth switch coupled between the third output terminal and the fourth output terminal. The third feed point is coupled to one of the first output terminal, the second output terminal, the third output terminal, and the fourth output terminal, and / or the fourth feed point is coupled to one of the first output terminal, the second output terminal, the third output terminal, and the fourth output terminal. The first end of the eleventh antenna branch is coupled to the first output terminal, and the second end extends towards the upper edge of the first lens frame. The first end of the twelfth antenna branch is coupled to the second output terminal, and the second end extends towards the lower edge of the first lens frame. The first end of the thirteenth antenna branch is coupled to the third output terminal, and the second end extends towards the lower edge of the second lens frame. The first end of the fourteenth antenna branch is coupled to the fourth output terminal, and the second end extends towards the upper edge of the second lens frame. Moreover, the eleventh antenna branch is orthogonal to the twelfth antenna branch, and the thirteenth antenna branch is orthogonal to the fourteenth antenna branch.

17. The smart glasses according to claim 16, wherein, the switching device further includes a sixth switch coupled between the first output terminal and the third output terminal, a seventh switch coupled between the first output terminal and the fourth output terminal, an eighth switch coupled between the second output terminal and the third output terminal, and a ninth switch coupled between the second output terminal and the fourth output terminal.

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