AR glasses attitude calibration device

Abstract

The utility model relates to the technical field of AR (Augmented Reality) glasses calibration equipment, and provides an AR glasses attitude calibration device which comprises a glasses bracket and a GNSS (Global Navigation Satellite System) assembly. The glasses support is used for placing AR glasses to be calibrated. The GNSS assembly includes an antenna assembly and a resolving unit. The antenna assembly is arranged on the glasses support, and the resolving unit is configured to be in communication connection with the GNSS assembly and the AR glasses. The antenna assembly is used for receiving GNSS satellite signals to obtain positioning information and transmitting the positioning information to the resolving unit. And the resolving unit is used for feeding back the pose information to the AR glasses according to the positioning information. According to the AR glasses attitude calibration device of the utility model, during calibration, the antenna assembly can communicate with a GNSS satellite, acquire corresponding positioning information and transmit the positioning information to the resolving unit, and the resolving unit generates the current attitude information of the AR glasses based on the positioning information and sends the attitude information to the AR glasses. Therefore, the detection data of the directional sensor of the AR glasses can be calibrated.

Description

TECHNICAL FIELD

[0001] The utility model relates to AR glasses calibration equipment technical field especially relates to a kind of AR glasses posture calibration device. BACKGROUND

[0002] In the related art, AR glasses often use magnetic compass as directional sensor when used outdoors, and the magnetic compass is prone to directional inaccuracy when used due to environmental magnetic field interference. SUMMARY

[0003] The utility model provides a kind of AR glasses posture calibration device, to solve the directional inaccuracy defect of directional sensor after environmental magnetic field interference in prior art when AR glasses is used for a long time.

[0004] The utility model provides a kind of AR glasses posture calibration device, comprising:

[0005] Glasses support, for placing the AR glasses to be calibrated;

[0006] GNSS component, including antenna assembly and solving unit, the antenna assembly is set to the glasses support, the solving unit is configured to be respectively and the antenna assembly and the AR glasses communication connection;

[0007] The antenna assembly is used to receive GNSS satellite signal to obtain positioning information, and the positioning information is transmitted to the solving unit;The solving unit is used to feed back pose information to the AR glasses according to the positioning information.

[0008] According to the AR glasses posture calibration device of the utility model, the glasses support is head model, the head model is structured with nose and two ears, two the ears are about the axis of symmetry arrangement of the nose, the nose and the ear are used to wear the AR glasses.

[0009] According to the AR glasses posture calibration device of the utility model, the antenna assembly includes antenna support and GNSS antenna;

[0010] The antenna support is set to the glasses support, and the GNSS antenna is set to the antenna support, and the GNSS antenna is configured to be respectively and the GNSS satellite and the solving unit communication connection.

[0011] According to the AR glasses posture calibration device of the utility model, the GNSS antenna includes first antenna and second antenna;

[0012] The first antenna and the second antenna are arranged along horizontal direction interval.

[0013] The first antenna is located at one side of the glasses support, and the second antenna is located at the side of the glasses support away from the first antenna.

[0014] The antenna support comprises a first connecting rod and a second connecting rod.

[0015] One end of the first connecting rod is connected to one side of the glasses support, and the first antenna is arranged at the other end of the first connecting rod.

[0016] The first antenna and the second antenna are arranged in axial symmetry about the symmetry axis of the AR glasses placed on the glasses support.

[0017] The horizontal distance between the first antenna and the second antenna is greater than or equal to 1m.

[0018] The GNSS antenna is a Beidou antenna and / or a GPS antenna.

[0019] The AR glasses posture calibration device further comprises a server configured to be communicatively connected with the calculation unit and the AR glasses respectively, and the server is used for buffering the posture information and transmitting the posture information to the AR glasses.

[0020] The AR glasses posture calibration device places the AR glasses to be calibrated on the glasses support, and the glasses support is provided with an antenna assembly, so that the relative position and posture of the GNSS assembly, the glasses support and the AR glasses remain unchanged during the calibration process. BRIEF DESCRIPTION OF DRAWINGS

[0021] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the AR glasses posture calibration device provided in an embodiment of this utility model.

[0023] Figure label:

[0024] 1. AR glasses posture calibration device;

[0025] 11. Eyeglass frames;

[0026] 12. GNSS assembly; 121. Antenna bracket; 122. GNSS antenna; 123. First antenna; 124. Second antenna; 125. First connecting rod; 126. Second connecting rod;

[0027] 13. Server;

[0028] 2. AR glasses; 21. Control unit. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] The following is combined Figure 1 This invention describes an AR glasses posture calibration device.

[0031] like Figure 1 As shown, this utility model provides an AR glasses attitude calibration device 1, including: a glasses holder 11 and a GNSS component 12. The glasses holder 11 is used to hold the AR glasses 2 to be calibrated. The GNSS component 12 includes an antenna assembly and a calculation unit. The antenna assembly is disposed on the glasses holder 11, and the calculation unit is configured to communicate with both the GNSS component 12 and the AR glasses 2. The antenna assembly is used to receive GNSS satellite signals to obtain positioning information and transmit the positioning information to the calculation unit. The calculation unit is used to feed back pose information to the AR glasses 2 based on the positioning information.

[0032] In this embodiment, the eyeglasses holder 11 has an eyeglasses placement position for placing the AR glasses 2 to be calibrated. It is understood that after the AR glasses 2 are placed on the eyeglasses holder 11, their position and orientation relative to the eyeglasses holder 11 remain fixed. Simultaneously, the eyeglasses holder 11 also has a GNSS (Global Navigation Satellite System) component 12. The GNSS component 12 has an antenna component and a calculation unit. The antenna component can receive positioning signals transmitted by multiple GNSS satellites and acquire corresponding positioning information, which typically includes satellite positions, satellite signal transmission and reception times, etc. After the positioning information is transmitted to the calculation unit, the calculation unit can calculate the positioning result of the antenna component based on this positioning information. Since the relative position and orientation of the antenna component, eyeglasses holder 11, and AR glasses 2 are fixed, the calculation unit can calculate the current position and orientation data of the AR glasses 2 using the positioning result of the antenna component and generate pose information, which is then transmitted to the control unit 21 of the AR glasses 2 for calibration of the orientation sensor detection data of the AR glasses 2.

[0033] The AR glasses attitude calibration device 1 of this invention places the AR glasses 2 to be calibrated on a glasses holder 11, which is equipped with an antenna assembly. This ensures that the relative position and attitude of the GNSS component 12, the glasses holder 11, and the AR glasses 2 remain fixed during calibration. During calibration, the antenna assembly can communicate with GNSS satellites to acquire corresponding positioning information and transmit it to a calculation unit. The calculation unit can generate the current pose information of the AR glasses 2 based on the positioning information and the relative position and attitude of the antenna assembly, glasses holder 11, and AR glasses 2, and send the pose information to the AR glasses 2. This allows for the calibration of the orientation sensor's detection data and reduces the AR glasses 2's dependence on a magnetic compass. This effectively solves the problem in existing technologies where the orientation sensor of AR glasses becomes inaccurate after long-term use due to interference from environmental magnetic fields.

[0034] Optionally, the glasses holder 11 may be provided with a clamping mechanism or an adsorption mechanism to clamp and fix the AR glasses 2 or adsorb and fix the AR glasses 2 so that the posture and position of the AR glasses 2 can be kept fixed during the calibration process.

[0035] Alternatively, in some embodiments, such as Figure 1 As shown, the glasses frame 11 is a head model, which has a nose and two ears. The two ears are arranged symmetrically about the central axis of the nose. The nose and ears are used to wear AR glasses 2.

[0036] In the embodiment, the eyeglasses holder 11 is arranged as a head model imitating a human head shape, and the head model has a nose portion imitating a human nose shape and ears imitating human ear shapes. The nose portion is used to support a bridge of the AR glasses 2, and the two ears are respectively used to support two temples of the AR glasses 2, so that the AR glasses 2 can be stably placed on the eyeglasses holder 11. During the whole calibration process, the position and orientation of the AR glasses 2 can be maintained stable and unchanged, and the user can conveniently place or remove the AR glasses 2 from the eyeglasses holder 11.

[0037] In some embodiments, as shown in Figure 1 the antenna assembly includes an antenna holder 121 and a GNSS antenna 122. The antenna holder 121 is arranged on the eyeglasses holder 11, and the GNSS antenna 122 is arranged on the antenna holder 121. The GNSS antenna 122 is configured to be communicatively connected with a GNSS satellite and a calculation unit respectively.

[0038] In the embodiment, the antenna holder 121 is used to connect the eyeglasses holder 11 and the GNSS antenna 122, so that the GNSS antenna 122 has a reasonable distance from the eyeglasses holder 11 and the AR glasses 2 on the eyeglasses holder 11. The GNSS antenna 122 can transmit and receive signals to and from the GNSS satellite, obtain corresponding positioning information, and transmit the positioning information to the calculation unit. The calculation unit is used to calculate the position and attitude data of the AR glasses 2 according to the positioning information.

[0039] Specifically, in some embodiments, as shown in Figure 1 the GNSS antenna 122 includes a first antenna 123 and a second antenna 124. The first antenna 123 and the second antenna 124 are arranged in a horizontal direction.

[0040] In the embodiment, the first antenna 123 and the second antenna 124 are arranged in the horizontal direction. The first antenna 123 and the second antenna 124 can respectively communicate with the GNSS satellite to obtain respective positioning information. The calculation unit can calculate the positions of the first antenna 123 and the second antenna 124 respectively, so as to better calculate the position and orientation of the AR glasses 2 according to the position information of the two points.

[0041] In some embodiments, as shown in Figure 1 the first antenna 123 is located on one side of the eyeglasses holder 11, and the second antenna 124 is located on the side of the eyeglasses holder 11 away from the first antenna 123.

[0042] In the embodiment, the eyeglasses holder 11 is located between the first antenna 123 and the second antenna 124, so that the structure of the eyeglasses holder 11, the first antenna 123 and the second antenna 124 is more compact and occupies less space.

[0043] Specifically, in some embodiments, as shown in Figure 1 The first link 125 is connected to one side of the glasses holder 11 at one end, and the first antenna 123 is arranged at the other end of the first link 125. The second link 126 is connected to the other side of the glasses holder 11 at one end, and the second antenna 124 is arranged at the other end of the second link 126.

[0044] In this embodiment, by arranging the first link 125 and the second link 126 on the opposite sides of the glasses holder 11 respectively, the first link 125 is used to mount the first antenna 123, and the second link 126 is used to mount the second antenna 124, so that the first antenna 123 and the second antenna 124 are kept at a reasonable distance.

[0045] Specifically, in some embodiments, as shown in Figure 1 The first antenna 123 and the second antenna 124 are arranged in axial symmetry about the symmetry axis of the AR glasses 2 placed on the glasses holder 11.

[0046] In this embodiment, by reasonably arranging the glasses placement position on the glasses holder 11 and the positions of the first antenna 123 and the second antenna 124, when the AR glasses 2 are placed on the glasses holder 11, the first antenna 123 and the second antenna 124 are arranged in axial symmetry about the symmetry axis of the AR glasses 2, and the AR glasses 2 are located at the midpoint of the line connecting the first antenna 123 and the second antenna 124, so that the calculation of the solving unit is more convenient when solving the pose information of the AR glasses 2 according to the positioning information of the first antenna 123 and the second antenna 124.

[0047] Optionally, in some embodiments, the horizontal distance between the first antenna 123 and the second antenna 124 is greater than or equal to 1 m.

[0048] Optionally, in some embodiments, the GNSS antenna 122 is a Beidou antenna and / or a GPS antenna.

[0049] It can be understood that the GNSS antenna 122 can adopt a Beidou antenna or a GPS (Global Positioning System) antenna according to actual positioning needs, so as to perform positioning through the Beidou satellite navigation system or the GPS system. Alternatively, the GNSS antenna 122 can also be provided with a Beidou antenna and a GPS antenna at the same time, and positioning is performed by using the two systems.

[0050] Optionally, in some embodiments, as shown in Figure 1As shown, the AR glasses posture calibration device 1 further comprises a server 13, which is configured to be communicatively connected with the solving unit and the AR glasses 2 respectively, and is used to buffer and transmit the pose information to the AR glasses 2. In this embodiment, the server 13 is used to communicate with the solving unit and the AR glasses 2 respectively, to receive and buffer the pose information solved by the solving unit, and transmit the pose information to the control unit 21 (usually a control host) of the AR glasses 2, so as to calibrate the detection data of the directional sensor of the AR glasses 2.

[0051] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An AR glasses pose calibration apparatus, characterized by, The application relates to an AR (Augmented Reality) glasses calibration device. The device comprises: a glasses holder for placing AR glasses to be calibrated; a GNSS (Global Navigation Satellite System) component, which comprises an antenna component and a calculation unit, the antenna component being arranged on the glasses holder, and the calculation unit being configured to be communicatively connected with the antenna component and the AR glasses respectively; the antenna component is used for receiving GNSS satellite signals to obtain positioning information and transmitting the positioning information to the calculation unit; 2. The AR glasses pose calibration apparatus of claim 1, wherein, the calculation unit is used for feeding back pose information to the AR glasses according to the positioning information.

3. The AR glasses pose calibration apparatus of claim 1, wherein, The glasses holder is a head model, and a nose part and two ear parts are arranged on the head model, the two ear parts being arranged in axial symmetry about the central axis of the nose part, and the nose part and the ear parts being used for wearing the AR glasses. The antenna component comprises an antenna holder and a GNSS antenna.

4. The AR glasses pose calibration apparatus of claim 3, wherein, The antenna holder is arranged on the glasses holder, and the GNSS antenna is arranged on the antenna holder, and the GNSS antenna is configured to be communicatively connected with GNSS satellites and the calculation unit respectively. The GNSS antenna comprises a first antenna and a second antenna.

5. The AR glasses pose calibration apparatus of claim 4, wherein, The first antenna and the second antenna are arranged in horizontal direction.

6. The AR glasses pose calibration apparatus of claim 5, wherein, The first antenna is located on one side of the glasses holder, and the second antenna is located on the side of the glasses holder away from the first antenna. The antenna holder comprises a first connecting rod and a second connecting rod.

7. The AR glasses pose calibration apparatus of claim 5, wherein, One end of the first connecting rod is connected with one side of the glasses holder, and the first antenna is arranged on the other end of the first connecting rod; one end of the second connecting rod is connected with the other side of the glasses holder, and the second antenna is arranged on the other end of the second connecting rod.

8. The AR glasses pose calibration apparatus of claim 4, wherein, The first antenna and the second antenna are arranged in axial symmetry about the symmetry axis of the AR glasses placed on the glasses holder.

9. The AR glasses pose calibration apparatus of any one of claims 3-8, wherein, The horizontal distance between the first antenna and the second antenna is greater than or equal to 1 m.

10. The AR glasses pose calibration apparatus of claim 1, wherein, The GNSS antenna is a Beidou antenna and / or a GPS antenna. The device further comprises a server, which is configured to be communicatively connected with the calculation unit and the AR glasses respectively, and the server is used for buffering the pose information and transmitting the pose information to the AR glasses.

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