Binocular positioning device and three-dimensional display sand table

Abstract

The utility model provides a binocular positioning device and a three-dimensional display sand table. The binocular positioning device comprises 3D glasses, a positioning module and a lens driving module. The 3D glasses comprise a glasses frame, two glasses arms and two lenses; the lens driving module is used for controlling on-off states of the lenses; the positioning module comprises a height detection module, a tracking module and a positioning support. According to the 3D glasses, the lenses are controlled to be opened and closed through the lens driving module, the height detection module detects the height of the 3D glasses, and the tracking module transmits an ultra-wideband positioning signal to the 3D display sand table. And the three-dimensional display sand table processes the received position information, obtains the position of the user and calls a display picture of a corresponding visual angle for display, and the user watches the corresponding three-dimensional display picture through the lens of the device. According to the method and the device, accurate positioning of the user is realized, the method and the device have the characteristics of high stability and good compatibility, the displayed picture can change along with the change of the visual angle of the user, the authenticity of the scene is improved, and the user experience is improved.

Description

Technical Field

[0001] This application relates to the technical field of sand table display, and in particular, to a binocular positioning device and a three-dimensional display sand table. Background Art

[0002] A sand table is a three-dimensional model that simulates and displays a specific environment or area, and is usually applied in fields such as planning and design, education exhibitions, and military training. Traditional sand tables are usually built with materials such as sediment, foam plastic, and gypsum powder according to proportional relationships, but there are problems such as complex production processes, long production cycles, fixed display content, and single functions.

[0003] Currently, with the popularization of LED display technology, electronic sand tables based on LED display have gradually replaced traditional sand tables and have been widely used in various occasions. Although electronic sand tables have advantages such as rich display content and replaceable scenes, their biggest drawback is that traditional sand tables are three-dimensional and people can observe the scene 360 degrees; while electronic sand tables often can only display one side of the scene and are generally still flat without a three-dimensional sense.

[0004] In response to this drawback of electronic sand tables, there are currently some improved methods that can make electronic sand tables present three-dimensional scenes, but these improvement methods are too complex, and when positioning users, the stability and compatibility are poor, resulting in errors in the viewing angles of the displayed scenes, poor use effects, and poor user experiences. Summary of the Utility Model

[0005] This application provides a binocular positioning device and a three-dimensional display sand table to solve the problems that the existing electronic sand tables are too complex in usage methods when presenting three-dimensional scenes, and have poor stability and compatibility when positioning users, resulting in errors in the viewing angles of the displayed scenes, poor use effects, and poor user experiences.

[0006] To solve the above technical problems, the technical solution adopted by this application is to provide a binocular positioning device for a three-dimensional display sand table, including: a 3D glasses, the 3D glasses include a frame, two mirror arms connected to the frame, and two lenses disposed in the frame, and the 3D glasses are used to be worn on the user's eye part; a lens driving module, disposed inside one of the mirror arms and electrically connected to the lens, for controlling the on / off state of the lens to allow the user to view the three-dimensional display picture of the three-dimensional display sand table through the 3D glasses; a positioning module, the positioning module includes a height detection module, a tracking module and a positioning bracket; a connection end of the positioning bracket is connected to the connection part of the frame and one of the mirror arms, a detection end of the positioning bracket is fixedly connected to the height detection module, a working surface of the height detection module faces the ground, and the height detection module is used to detect the height at which the 3D glasses are currently located; the tracking module is disposed inside one of the mirror arms, and the tracking module is used to track and position the user.

[0007] In some embodiments, the tracking module includes an ultra-wideband signal transceiver, and the ultra-wideband signal transceiver is used to wirelessly connect to the three-dimensional display sand table and is also used to transmit and receive ultra-wideband positioning signals.

[0008] In some embodiments, the tracking module further includes an ultra-wideband antenna, a triaxial accelerometer, a power management unit, a clock unit and a microcontroller; the ultra-wideband antenna is electrically connected to the ultra-wideband signal transceiver for realizing wireless communication between the ultra-wideband signal transceiver and the three-dimensional display sand table; the triaxial accelerometer is used to detect the motion state of the tracking module; the microcontroller is used to control and coordinate the working states of the ultra-wideband signal transceiver, the ultra-wideband antenna, the triaxial accelerometer, the power management unit and the clock unit.

[0009] In some embodiments, the working surface of the height detection module is parallel to the ground.

[0010] In some embodiments, it further includes a synchronous receiving module, disposed inside one of the mirror arms, the synchronous receiving module is electrically connected to the lens driving module, and the synchronous receiving module is used to receive the 3D synchronous signal of the three-dimensional display sand table.

[0011] In some embodiments, it further includes a wireless transmitting module, disposed inside one of the mirror arms, the wireless transmitting module is electrically connected to the height detection module, the wireless transmitting module is used to convert the height information detected by the height detection module into a wireless positioning signal and is also used to transmit the wireless positioning signal to the three-dimensional display sand table.

[0012] In some embodiments, the material of the lens is electro-optical valve glass.

[0013] In some embodiments, it further includes a power switch and a master-slave switch. The power switch and the master-slave switch are respectively disposed on the outer surface of one of the mirror arms. The power switch is used to control the working state of the binocular positioning device, and the master-slave switch is used to switch the communication state between the binocular positioning device and the three-dimensional display sand table in real time.

[0014] In some embodiments, it further includes a power supply module. The power supply module is disposed inside one of the mirror arms. The power supply module includes a battery and a charging module electrically connected to the battery. The battery is electrically connected to the lens driving module and the positioning module respectively.

[0015] This application also provides a three-dimensional display sand table, which includes a sand table body, a sand table server, an LED display screen, a locator, a 3D synchronizer, and at least one binocular positioning device as described above; the sand table server and the 3D synchronizer are both disposed inside the sand table body, the LED display screen is disposed on the upper surface of the sand table body, the sand table server is electrically connected to the LED display screen, the locator, and the 3D synchronizer respectively, and the binocular positioning device is wirelessly connected to the sand table server, the locator, and the 3D synchronizer respectively.

[0016] The beneficial effects of the present application are as follows: The present application discloses a binocular positioning device and a three-dimensional display sand table. The device includes: a 3D glasses, which includes a frame, two temple arms connected to the frame, and two lenses disposed within the frame, and is used to be worn on the user's eye area; a lens driving module, which is disposed inside one of the temple arms and is electrically connected to the lenses, and is used to control the on / off state of the lenses to allow the user to view the three-dimensional display image of the three-dimensional display sand table through the 3D glasses; a positioning module, which includes a height detection module, a tracking module, and a positioning bracket; the connecting end of the positioning bracket is connected to the connection part of the frame and one of the temple arms, the detection end of the positioning bracket is fixedly connected to the height detection module, the working surface of the height detection module faces the ground, and the height detection module is used to detect the height at which the 3D glasses are currently located; the tracking module is disposed inside one of the temple arms and is used to track and position the user. The present application detects the 3D synchronization signal from the three-dimensional display sand table through the synchronization receiving module, transmits the 3D synchronization signal to the lens driving module, and controls the lenses to continuously perform high-speed on and off through the lens driving module. At the same time, the height detection module starts to detect the height at which the 3D glasses are currently located, and transmits the height information to the three-dimensional display sand table through the wireless transmission module. Meanwhile, the tracking module transmits an ultra-wideband positioning signal to the three-dimensional display sand table to enable it to obtain the real-time two-dimensional position information of the user. The three-dimensional display sand table processes the received height information and two-dimensional position information to obtain the current position of the user, and further calls out the display image of the corresponding viewing angle of the object to be displayed for display according to the current position. The user views the three-dimensional display image of the object to be displayed through the lenses of the worn binocular positioning device. The present application not only realizes the precise positioning of the user, but also has the characteristics of high stability and good compatibility. At the same time, the image of the object to be displayed can be changed at any time with the change of the user's viewing angle, improving the authenticity of the scene and further enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a binocular positioning device provided by the present application;

[0018] Figure 2 is a schematic block diagram of a binocular positioning device provided by the present application;

[0019] Figure 3 is a schematic block diagram of the tracking module in a binocular positioning device provided by the present application;

[0020] Figure 4 is a schematic block diagram of the power supply module in a binocular positioning device provided by the present application;

[0021] Figure 5 is a schematic block diagram of a three-dimensional display sand table provided by the present application;

[0022] Figure 6 is a schematic structural view of a three-dimensional display sand table provided by the present application;

[0023] Figure 7 is a schematic structural view of another embodiment of a three-dimensional display sand table provided by the present application. Detailed implementation manners

[0024] For ease of understanding the present application, the present application will be described in more detail below with reference to the accompanying drawings and specific embodiments. The preferred embodiments of the present application are shown in the accompanying drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, these embodiments are provided to make the understanding of the disclosure content of the present application more thorough and comprehensive.

[0025] It should be noted that unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not used to limit the present application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0026] As Figures 1 to 3 shown, the present application provides a binocular positioning device for a three-dimensional display sand table, including a 3D glasses 600, a lens driving module 610, and a positioning module 620.

[0027] The 3D glasses 600 includes a frame 601, two temple arms 602 connected to the frame 601, and two lenses 603 disposed in the frame 601. The 3D glasses 600 is used to be worn on the eye part of a user. The lens driving module 610 is disposed inside one of the temple arms 602 and is electrically connected to the lens 603, and is used to control the on / off state of the lens 603 to allow the user to view the three-dimensional display picture of the three-dimensional display sand table through the 3D glasses 600. The positioning module 620 includes a height detection module 621, a tracking module 622, and a positioning bracket 623; the connection end 624 of the positioning bracket 623 is connected to the connection part of the frame 601 and one of the temple arms 602, the detection end 625 of the positioning bracket 623 is fixedly connected to the height detection module 621, the working surface 626 of the height detection module 621 faces the ground, and the height detection module 621 is used to detect the height at which the 3D glasses 600 is currently located; the tracking module 622 is disposed inside one of the temple arms 602, and the tracking module 622 is used to perform tracking and positioning on the user.

[0028] In this application, the lens driving module 610 controls the lens 603 to continuously perform high-speed opening and closing. At the same time, the altitude detection module 621 detects the altitude at which the current 3D glasses 600 are located and transmits the altitude information to the three-dimensional display sand table. Meanwhile, the tracking module 622 transmits an ultra-wideband positioning signal to the three-dimensional display sand table, enabling it to obtain the real-time two-dimensional position information of the user. The three-dimensional display sand table processes the received altitude information and two-dimensional position information, obtains the current position of the user, and calls up the display screen of the corresponding perspective of the object to be displayed for display according to the current position. The user can view the three-dimensional display screen of the object to be displayed through the lens 603 of the binocular positioning device worn. This application not only achieves precise positioning of the user, but also has the characteristics of high stability and good compatibility. At the same time, the displayed screen of the object to be displayed can change at any time with the change of the user's perspective, improving the authenticity of the scene and further enhancing the user experience.

[0029] The following will Figures 1 to 7 , with specific embodiments, elaborate on this application in detail.

[0030] Refer to Figure 1 、 Figure 2 , the binocular positioning device of this application includes a 3D glasses 600, a lens driving module 610, a positioning module 620, a synchronous receiving module 630, a wireless transmitting module 640, a power supply module 650, a power switch 660, and a master-slave switch 670.

[0031] Specifically, as Figure 1 shown, the 3D glasses 600 include a frame 601, two temple arms 602 connected to the frame 601, and two lenses 603 disposed within the frame 601. The 3D glasses 600 are used to be worn on the user's eye area, and the user can view the three-dimensional display screen of the object to be displayed on the three-dimensional display sand table through the 3D glasses 600.

[0032] In this embodiment, the outer contour of the frame 601 can be rectangular or circular. Correspondingly, the shape of the lens 603 can also be rectangular or circular, which is adapted to the frame 601. The material of the lens 603 in this embodiment is electro-optical valve glass, which is a special optoelectronic glass product that uses liquid crystal technology to achieve image display; the core of the electro-optical valve glass lies in its ability to control the arrangement of liquid crystal molecules, thereby realizing image display; the lens 603 is designed using shutter 3D technology, mainly achieving 3D effects by controlling the display screen seen by the user through high-speed opening and closing.

[0033] Furthermore, in combination with Figure 1 、 Figure 2As shown, the lens driving module 610 is electrically connected to the lens 603 in the 3D glasses 600. The lens driving module 610 is disposed inside one of the temple arms 602 and is used to control the on / off state of the lens 603. The lens 603 is controlled to be turned on and off at high speed through an electrical signal, so that the user can view the three-dimensional display screen of the three-dimensional display sand table through the lens 603 of the 3D glasses 600.

[0034] Furthermore, in combination with Figures 1 to 3 As shown, the positioning module 620 includes a height detection module 621, a tracking module 622, and a positioning bracket 623.

[0035] The connecting end 624 of the positioning bracket 623 is connected to the connection part of the frame 601 and one of the temple arms 602. The detection end 625 of the positioning bracket 623 is fixedly connected to the height detection module 621. The positioning bracket 623 is used to fixedly support the height detection module 621. The working surface 626 of the height detection module 621 faces the ground and is used to detect the height at which the 3D glasses 600 are currently located.

[0036] In this embodiment, it is preferably to set the working surface 626 of the height detection module 621 to be parallel to the ground, which can further improve the detection accuracy and avoid errors in height detection when tilted. When the positioning bracket 623 supports the height detection module 621, its length needs to meet the requirement that when the user wears the 3D glasses 600, the height detection module 621 will not be blocked by the user's body parts so as not to affect the height detection.

[0037] It should be noted that when the user wears the 3D glasses 600 to view the three-dimensional display screen of the three-dimensional display sand table, when the distance from the three-dimensional display sand table is too close, the three-dimensional display sand table may also block the detection signal of the height detection module 621, resulting in errors in the measured height data. Therefore, taking an ordinary adult user as an example, if the height of the three-dimensional display sand table is 50 cm and the measured height data at this time is less than 100 cm, it means that the height detection module 621 is blocked by the three-dimensional display sand table at this time. Therefore, the measured height data is increased by the height of the three-dimensional display sand table, that is, increased by 50 cm, to solve the error problem.

[0038] Furthermore, in combination with Figure 1 、 Figure 2, the wireless transmission module 640 is disposed inside one of the mirror arms 602. The wireless transmission module 640 is electrically connected to the height detection module 621. The wireless transmission module 640 is configured to convert the height information of the 3D glasses 600 detected by the height detection module 621 into a wireless positioning signal, and transmit the wireless positioning signal to the three-dimensional display sand table at a frequency of 2 Hz - 50 Hz. In this embodiment, the wireless transmission module 640 is a WiFi signal transmission module, and the wireless positioning signal it transmits is a WiFi signal.

[0039] Further, as shown in Figures 1 to 3 , the tracking module 622 is disposed inside one of the mirror arms 602. The tracking module 622 is configured to perform tracking and positioning on the user.

[0040] Specifically, the tracking module 622 includes an ultra-wideband (UWB, Ultra Wide Band) signal transceiver 680, an ultra-wideband antenna 681, a triaxial accelerometer 682, a power management unit 683, a clock unit 684, and a microcontroller 685.

[0041] The ultra-wideband signal transceiver 680 is configured to wirelessly connect to the three-dimensional display sand table. The ultra-wideband signal transceiver 680 transmits and receives ultra-wideband positioning signals with the three-dimensional display sand table through the ultra-wideband frequency band (3.1 GHz - 7 GHz), and the positioning frequency is 1 Hz - 20 Hz, so as to achieve precise positioning of the user, thereby obtaining the real-time two-dimensional position information of the user.

[0042] The ultra-wideband antenna 681 is electrically connected to the ultra-wideband signal transceiver 680, and is used to realize wireless communication between the ultra-wideband signal transceiver 680 and the three-dimensional display sand table. The triaxial accelerometer 682 is used to detect the motion state of the tracking module 622. When it detects that the tracking module 622 is stationary, the microcontroller 685 can be used to control each module to temporarily stop working, reducing the power consumption of the tracking module 622. The microcontroller 685 is mainly used to control the working states of various parts of the tracking module 622.

[0043] Further, as shown in Figure 1 、 Figure 2 , the synchronous receiving module 630 is disposed inside one of the mirror arms 602. The synchronous receiving module 630 is electrically connected to the lens driving module 610; the synchronous receiving module 630 is configured to receive the 3D synchronization signal of the three-dimensional display sand table.

[0044] Further, as shown in Figure 1 、 Figure 2As shown, the power switch 660 and the master-slave switch 670 are respectively disposed on the outer surface of one of the mirror arms 602. The power switch 660 is used to control the working state of the binocular positioning device (i.e., when the power switch 660 is pressed, the device starts to work, and when it is pressed again, it stops working). The master-slave switch 670 is used to switch the communication state between the binocular positioning device and the three-dimensional display sand table in real time; if there are two binocular positioning devices at the same time, only one of the two binocular positioning devices can be the host and the other can be the slave, and only the host can view the three-dimensional display screen from the correct perspective; when two users wear two binocular positioning devices respectively, if one user presses the master-slave switch 670, the binocular positioning device he wears will become the host, that is, it can view the three-dimensional display screen of the current corresponding perspective, and the other slave can also view the three-dimensional display screen, but because the perspective of the slave is different from that of the host, there is an error in the three-dimensional display screen seen by the slave in terms of space; when the other slave wants to view the three-dimensional display screen of its corresponding perspective, it only needs to press the master-slave switch 670 on it to realize the switching between the host and the slave, and further realize the communication with the three-dimensional display sand table.

[0045] Further, as shown in combination with Figure 1 、 Figure 2 、 Figure 4 the power supply module 650 is disposed inside one of the mirror arms 602. The power supply module 650 includes a battery 651 and a charging module 652 electrically connected to the battery 651. The charging module 652 can charge the battery 651 when the battery 651 runs out of power. The power supply module 650 is used to supply power to each module of the binocular positioning device of the present application to provide a stable power source.

[0046] In summary, the working principle and usage method of the binocular positioning device of the present application are as follows:

[0047] First, the user wears the device as required and presses the power switch 660 on the mirror arm 602, and each module of the device is powered on and starts to work.

[0048] The synchronous receiving module 630 enters the working state and detects the 3D synchronous signal from the three-dimensional display sand table. When the 3D synchronous signal is received, it is transmitted to the lens driving module 610, and the lens driving module 610 controls the lens 603 to continuously perform high-speed opening and closing.

[0049] At the same time, the positioning module 620 starts to work. The height detection module 621 detects the height at which the current 3D glasses 600 are located and transmits the height information to the three-dimensional display sand table through the wireless transmission module 640 for its use. At the same time, the tracking module 622 transmits an ultra-wideband positioning signal to the three-dimensional display sand table so that it can obtain the real-time two-dimensional position information of the user.

[0050] The three-dimensional display sand table processes the received altitude information and two-dimensional position information to obtain the user's current position. Further, based on the current position, it calls up the display screen of the corresponding perspective of the object to be displayed for display. The user can view the three-dimensional display screen of the object to be displayed through the lens 603 of the binocular positioning device worn.

[0051] Based on the same inventive concept, the present application also provides a three-dimensional display sand table, which includes a sand table body, a sand table server, an LED display screen, a locator, a 3D synchronizer, and at least one binocular positioning device as described above; the sand table server and the 3D synchronizer are both arranged inside the sand table body, the LED display screen is arranged on the upper surface of the sand table body, the sand table server is electrically connected to the LED display screen, the locator, and the 3D synchronizer respectively, and the binocular positioning device is wirelessly connected to the sand table server, the locator, and the 3D synchronizer respectively.

[0052] Specifically, as shown in Figure 5 、 Figure 6 , the three-dimensional display sand table 7 includes a sand table body 8, a sand table server 1, a video processor 2, an LED display screen 3, a locator 4, a 3D synchronizer 5, and a binocular positioning device 6.

[0053] The sand table server 1, the video processor 2, and the 3D synchronizer 5 are all arranged inside the sand table body 8, and the LED display screen 3 is arranged on the upper surface of the sand table body 8. The sand table server 1 is electrically connected to the video processor 2 and the locator 4 respectively, and the video processor 2 is also electrically connected to the LED display screen 3 and the 3D synchronizer 5 respectively. The locator 4 is wirelessly connected to the tracking module 622 in the above-mentioned binocular positioning device 6, the 3D synchronizer 5 is wirelessly connected to the synchronous receiving module 630 in the binocular positioning device 6, and the WiFi receiver in the sand table server 1 is wirelessly connected to the wireless transmitting module 640 in the binocular positioning device 6.

[0054] The sand table server 1 is used to obtain three-dimensional views of a to-be-displayed object from multiple different angles; where the to-be-displayed object referred to in this application refers to a specific environment, a specific area, or a specific object, such as a building, a military base, a park, a lake, or an item that can be displayed in daily life, etc. The sand table server 1 can store and process the obtained three-dimensional views and transmit them to the video processor 2 for further optimization. Specifically, after the sand table server 1 processes the three-dimensional views, the refresh rate of the output three-dimensional views is 60 Hz, and after further processing by the video processor 2, the refresh rate becomes 120 Hz. In some other embodiments, after the sand table server 1 processes the three-dimensional views, it can also directly output three-dimensional views with a refresh rate of 120 Hz. The sand table server 1 is also used to calculate and obtain the viewing angle information of the user 9 corresponding to the sand table body 8 according to the height information and two-dimensional position information sent by the binocular positioning device 6; and is also used to call the three-dimensional views of the corresponding angles of the to-be-displayed object according to the viewing angle information. Specifically, after calculating the viewing angle information of the user 9, the sand table server 1 calls out the three-dimensional views of the corresponding angles of the to-be-displayed object stored therein and transmits them to the video processor 2 for processing until the display requirements of the LED display screen 3 are met. At the same time, the video processor 2 controls the 3D synchronizer 5 to transmit a 3D synchronization signal to the synchronization receiving module 630 of the binocular positioning device 6 and controls the binocular positioning device 6 to start working.

[0055] Furthermore, the video processor 2 is used to process three-dimensional views of a to-be-displayed object from multiple different angles and is also used to control the 3D synchronizer 5. The locator 4 is used to receive the ultra-wideband positioning signal sent by the tracking module 622, calculate and obtain the two-dimensional position information of the user 9, and is also used to establish a sand table coordinate system. The LED display screen 3 is used to display the three-dimensional views of the to-be-displayed object. The 3D synchronizer 5 is used to transmit a 3D synchronization signal to the synchronization receiving module 630 in the binocular positioning device 6.

[0056] The video processor 2 sends the processed three-dimensional views of the to-be-displayed object to the LED display screen 3, and the LED display screen 3 displays the corresponding picture. The user 9 wears the binocular positioning device 6 and views the corresponding three-dimensional picture in the direction of the LED display screen 3. When the user 9 moves further, the above steps are repeated, and the picture displayed on the LED display screen 3 can be switched to the precise picture corresponding to the current position of the user 9, making it more realistic.

[0057] In this embodiment, as Figure 6 shown, four locators 4 are provided, and the four locators 4 are respectively located at the four corners of the upper surface of the sand table body 8 and are arranged around the LED display screen 3.

[0058] In another embodiment, the four locators 4 are evenly distributed above the sand table body 8. Such as being arranged at the four top corners of the roof of the display space.

[0059] In another embodiment, as Figure 7 shown, a locator 4 is provided and hoisted on the roof of the display space and directly above the sand table body 8.

[0060] It should be noted that the above three-dimensional display sand table and the binocular positioning device of the present application are based on the same concept. For its specific functions, the processes by which each module realizes its respective functions, and the technical effects brought about, reference may specifically be made to the descriptions of the embodiments shown in the foregoing binocular positioning device, and details are not elaborated herein.

[0061] Thus, the present application discloses a binocular positioning device and a three-dimensional display sand table. The device includes: a 3D glasses, which includes a frame, two temple arms connected to the frame, and two lenses disposed in the frame, and the 3D glasses are used to be worn on the eyes of a user; a lens driving module, disposed inside one of the temple arms and electrically connected to the lenses, for controlling the on / off state of the lenses to allow the user to view the three-dimensional display picture of the three-dimensional display sand table through the 3D glasses; a positioning module, which includes a height detection module, a tracking module, and a positioning bracket; the connecting end of the positioning bracket is connected to the connection part of the frame and one of the temple arms, the detection end of the positioning bracket is fixedly connected to the height detection module, the working surface of the height detection module faces the ground, and the height detection module is used to detect the height at which the 3D glasses are currently located; the tracking module is disposed inside one of the temple arms and is used to track and position the user. The present application detects the 3D synchronization signal from the three-dimensional display sand table through a synchronization receiving module, transmits the 3D synchronization signal to the lens driving module, and controls the lenses to continuously perform high-speed on and off through the lens driving module. At the same time, the positioning module starts to work. The height detection module detects the height at which the 3D glasses are currently located, and transmits the height information to the three-dimensional display sand table through a wireless transmission module. At the same time, the tracking module transmits an ultra-wideband positioning signal to the three-dimensional display sand table to enable it to obtain the real-time two-dimensional position information of the user. The three-dimensional display sand table processes the received height information and two-dimensional position information to obtain the current position of the user, and further calls out the display picture of the corresponding perspective of the object to be displayed for display according to the current position. The user views the three-dimensional display picture of the object to be displayed through the lenses of the worn binocular positioning device. The present application not only realizes accurate positioning of the user, but also has the characteristics of high stability and good compatibility. At the same time, the picture of the object to be displayed can change at any time with the change of the user's perspective, improving the authenticity of the scene and further enhancing the user experience.

[0062] The above are only the embodiments of the present application, and do not limit the patent scope of the present application accordingly. Any equivalent structural transformation made by using the specifications and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present application by the same token.

Claims

1. A binocular positioning device for three-dimensional display of a sand table, characterized in that, Comprising: A 3D glasses, which includes a frame, two temple arms connected to the frame, and two lenses disposed within the frame, and the 3D glasses are for wearing on the user's eye area; A lens driving module, disposed inside one of the temple arms and electrically connected to the lens, for controlling the on / off state of the lens to allow the user to view the 3D display image of the 3D display sand table through the 3D glasses; A positioning module, the positioning module includes a height detection module, a tracking module and a positioning bracket; the connecting end of the positioning bracket is connected to the connection part of the frame and one of the temple arms, the detection end of the positioning bracket is fixedly connected to the height detection module, the working surface of the height detection module faces the ground, and the height detection module is used to detect the current height of the 3D glasses; the tracking module is disposed inside one of the temple arms, and the tracking module is used to track and position the user.

2. The binocular positioning device according to claim 1, characterized in that The tracking module includes an ultra-wideband signal transceiver, which is used for wireless connection with the 3D display sand table and also for transmitting and receiving ultra-wideband positioning signals.

3. The binocular positioning device according to claim 2, wherein The tracking module further includes an ultra-wideband antenna, a three-axis accelerometer, a power management unit, a clock unit and a microcontroller; The ultra-wideband antenna is electrically connected to the ultra-wideband signal transceiver for realizing wireless communication between the ultra-wideband signal transceiver and the 3D display sand table; the three-axis accelerometer is used to detect the motion state of the tracking module; the microcontroller is used to control and coordinate the working states of the ultra-wideband signal transceiver, ultra-wideband antenna, three-axis accelerometer, power management unit and clock unit.

4. The binocular positioning device according to claim 1, wherein The working surface of the height detection module is parallel to the ground.

5. The binocular positioning device according to claim 1, characterized in that, It further includes a synchronous receiving module, disposed inside one of the temple arms, and the synchronous receiving module is electrically connected to the lens driving module, and the synchronous receiving module is used to receive the 3D synchronous signal of the 3D display sand table.

6. The binocular positioning device according to claim 1, characterized in that, It further includes a wireless transmitting module, disposed inside one of the temple arms, and the wireless transmitting module is electrically connected to the height detection module, and the wireless transmitting module is used to convert the height information detected by the height detection module into a wireless positioning signal and also to transmit the wireless positioning signal to the 3D display sand table.

7. The binocular positioning device according to claim 1, characterized in that The material of the lens is electro-optical valve glass.

8. The binocular positioning device according to claim 1, characterized in that, It further includes a power switch and a master-slave switch, and both the power switch and the master-slave switch are respectively disposed on the outer surface of one of the temple arms, the power switch is used to control the working state of the binocular positioning device, and the master-slave switch is used to switch the communication state between the binocular positioning device and the 3D display sand table in real time.

9. The binocular positioning device according to claim 1, characterized in that, It further includes a power supply module, disposed inside one of the temple arms, and the power supply module includes a battery and a charging module electrically connected to the battery, and the battery is electrically connected to the lens driving module and the positioning module respectively.

10. A three-dimensional display sand table, characterized in that, Comprising a sand table body, a sand table server, an LED display screen, a locator, a 3D synchronizer, and at least one binocular positioning device according to any one of claims 1-9; Both the sand table server and the 3D synchronizer are arranged inside the sand table body. The LED display screen is arranged on the upper surface of the sand table body. The sand table server is electrically connected to the LED display screen, the locator and the 3D synchronizer respectively. The binocular positioning device is wirelessly connected to the sand table server, the locator and the 3D synchronizer respectively.

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