A kind of exhibition hall system based on virtual reality interaction and its using method

Abstract

The present invention relates to the field of virtual space technology, and in particular to an exhibition hall system based on virtual reality interaction and a method of using the same, comprising a handle and a control terminal, the control terminal being electrically connected to a display device, the handle comprising a shell, the shell having a streamlined arc-shaped exterior, a power button being arranged on the shell surface, a return button being arranged above the power button, a clickable touch pad being arranged above the return button, a trigger button being arranged below the clickable touch pad, a volume button being arranged on the side wall of the shell, a battery compartment being arranged inside the shell, and a status indicator light being arranged near the lower end of the shell surface. The present invention uses a sensor module for real-time monitoring and acquisition of signal data, a key module for operating and controlling a data screen, a single-chip microcomputer module for processing and analyzing the acquired signal data, a VR model for a display module for displaying a data screen, and a power module for supplying power to a circuit to ensure normal operation of the circuit.

Description

Technical Field

[0001] The present invention relates to the field of virtual reality, and in particular to an exhibition hall system based on virtual reality interaction and a method of using the same. Background Art

[0002] At present, common virtual reality interaction requires the use of a handle in conjunction with a virtual reality helmet. The helmet obtains the position of the handle and forms a positioning map of the virtual reality interaction handle in the helmet. The helmet directly controls the corresponding operation object with the obtained handle position and motion posture. Therefore, the virtual reality interaction handle in the prior art cannot be used without the helmet, and the content information displayed in the helmet can only be seen by the experiencer wearing the helmet, making the existing virtual reality interaction handle only suitable for single-person experience. When the virtual reality information is shared by multiple people in a large space, it is difficult for the experiencer who is not the operating subject to observe the control path of the operating subject on the operating object, resulting in difficulty for the experiencer to get an intuitive experience. In addition, most of the current virtual reality interaction handles use a joystick to control the direction of the operation object. The joystick has a poor sense of operation and is easily damaged, affecting normal operation. In view of this, we propose a showroom system based on virtual reality interaction and a method for using it. Summary of the invention

[0003] The purpose of the present invention is to provide an exhibition hall system based on virtual reality interaction and a method of using the same, so as to solve the problems mentioned in the above background technology that the current virtual reality cannot be shared by multiple people and the handle operation feels poor.

[0004] To achieve the above-mentioned purpose, on the one hand, the present invention provides an exhibition hall system based on virtual reality interaction, including a handle and a control terminal, the control terminal is electrically connected to a display device, the handle includes a shell, the outer surface of the shell is a streamlined arc shape, a power button is arranged on the surface of the shell, a return button is arranged above the power button, a clickable touch pad is arranged above the return button, a trigger button is arranged below the clickable touch pad, a volume button is arranged on the side wall of the shell, a battery compartment is arranged inside the shell, and a status indicator light is arranged on the surface of the shell near the lower end.

[0005] Preferably, the handle includes an operation signal transmitter, a marking signal transmitter and a wireless network module;

[0006] The operation signal transmitting element is used to transmit an operation signal to the operation object;

[0007] The marking signal transmitting element is used to transmit a positioning marking light spot to an external display device;

[0008] The wireless network module is used for data exchange.

[0009] Preferably, an intelligent system is installed inside the display device, and the intelligent system includes a sensor module, a button module, a single-chip computer module, a VR model, a display module and a power module.

[0010] The sensor module is used for real-time monitoring and acquisition of signal data;

[0011] The button module is used to operate the control data screen;

[0012] The single chip microcomputer module is used to process and analyze the collected signal data;

[0013] The VR model is used for displaying the data screen of the display module;

[0014] The power supply module is used to supply power to the circuit to ensure the normal operation of the circuit.

[0015] Preferably, the sensor module includes a visibility sensor, a plane sensor, a spherical sensor, a proximity sensor, a contact sensor and a time sensor.

[0016] Preferably, the VR model includes 2D drawing, 3D model, texture mapping, data model and information acquisition module.

[0017] Preferably, the clickable touchpad is used to control the directional movement of the operating object, and the clickable touchpad comprises two layers of surface films, two layers of ITO films are arranged between the two layers of surface films, and a connecting block and a gasket are arranged between the two layers of the ITO films.

[0018] Preferably, the handle realizes data exchange with the control terminal via a wireless network module.

[0019] On the other hand, the present invention also provides a method for using the exhibition hall system based on virtual reality interaction, including the exhibition hall system based on virtual reality interaction, and the method for using is as follows:

[0020] S1. Operation: The 3D model is transmitted to the display device, the display device is turned on, the handle is held by hand, and the power button on the handle is pressed. The mark signal transmitter of the handle emits a positioning mark light spot. The intelligent system in the display device captures the positioning mark light spot emitted by the handle to determine the position of the handle. The operator can operate the clickable touch pad and press the thumb on the surface film of the clickable touch pad to make the upper and lower electrodes of the contact pad at the bottom of the ITO film conductive, driving the exhibition hall to rotate in situ, press the volume button, and the operation signal transmitter transmits a signal to the control terminal to adjust the volume on the display device. Press the return button, and the operation signal transmitter transmits a signal to the control terminal. The display device is represented as the operation subject of the virtual world emitting a signal ray, and returns to the initial interface.

[0021] S2, signal processing: the sensor module is used to monitor and collect signal data in real time, the key module is used to operate the control data screen, the single-chip computer module is used to process and analyze the collected signal data, the VR model is used for the display module to display the data screen, and the power module is used to power the circuit to ensure the normal operation of the circuit;

[0022] S3, data interaction: the marking signal transmitter emits a positioning marking light spot to the display device, the motion sensor of the marking signal transmitter obtains the motion posture of the virtual reality interactive handle and sends it to the control terminal via the wireless network module, the control terminal locates the virtual reality interactive handle by combining the motion posture with the marking light spot, the operation signal emitted by the operation signal transmitter is displayed on the display device as a signal ray emitted by the operating subject of the virtual world, the marking signal transmitter emits a positioning marking light spot to the display device pointing to the door, and can switch to a place outside the exhibition hall, when the positioning marking light spot appears on the arrow in the scene, pressing the trigger key on the handle can interact with the scene jump.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The exhibition hall system based on virtual reality interaction and its use method are provided with a shell click touch pad. The thumb is placed on the surface film of the clickable touch pad and pressed to make the upper and lower electrodes of the contact pad at the bottom of the ITO film conductive, thereby driving the exhibition hall to rotate in situ. The operation is simple and the inconvenience of using a joystick is avoided.

[0025] 2. The exhibition hall system based on virtual reality interaction and its use method use the sensor module to monitor and collect signal data in real time, the key module to operate and control the data screen, the single-chip computer module to process and analyze the collected signal data, the VR model to display the data screen, and the power module to power the circuit to ensure the normal operation of the circuit.

[0026] 3. The exhibition hall system based on virtual reality interaction and its use method, by setting a handle, the marking signal transmitter emits a positioning marking light spot to the display device, the motion sensor of the marking signal transmitter obtains the motion posture of the virtual reality interaction handle and sends it to the control terminal via a wireless network module, the control terminal locates the virtual reality interaction handle by combining the motion posture with the marking light spot, the operation signal emitted by the operation signal transmitter is displayed on the display device as a signal ray emitted by the operating subject of the virtual world, and multiple people can share and watch. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a front view schematic diagram of the handle structure of the present invention;

[0029] Figure 3 It is a side schematic diagram of the handle structure of the present invention;

[0030] Figure 4 It is a schematic diagram of the control terminal structure of the present invention;

[0031] Figure 5 It is a schematic diagram of a handle module of the present invention;

[0032] Figure 6 It is a working block diagram of the intelligent system of the present invention;

[0033] Figure 7 This is a working block diagram of the VR model of the present invention;

[0034] Figure 8 It is a working block diagram of the sensor module of the present invention;

[0035] Fig. 9 It is a motion trajectory schematic diagram of the present invention;

[0036] Fig.10 It is a working principle diagram of the present invention;

[0037] Fig.11 The circuit diagram of the transmitter for operation of the present invention;

[0038] Fig.12 The circuit diagram of the marking signal transmitting element of the present invention;

[0039] Fig.13 The wireless receiving device circuit diagram of the present invention;

[0040] Fig.14 is a circuit diagram of a motion sensor of the present invention;

[0041] Fig.15 A cross-sectional view of the clickable touch panel structure of the present invention;

[0042] Fig.16 The figure is a circuit diagram of a clickable touch panel of the present invention.

[0043] In the figure: 1. handle; 11. shell; 12. power button; 13. return button; 14. clickable touchpad; 141. upper surface film; 142. ITO film; 143. connecting block; 144. gasket; 15. status indicator light; 16. trigger button; 17. volume button; 18. battery compartment; 2. control terminal; 21. display device. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] Example 1

[0047] On the one hand, the present invention provides an exhibition hall system based on virtual reality interaction, such as Figure 1-Figure 4 As shown, an exhibition hall system based on virtual reality interaction includes a handle 1 and a control terminal 2, the control terminal 2 is electrically connected to a display device 21, the handle 1 includes a shell 11, the shell 11 has a streamlined arc shape, a power button 12 is arranged on the surface of the shell 11, a return button 13 is arranged above the power button 12, a clickable touch pad 14 is arranged above the return button 13, a trigger button 16 is arranged below the clickable touch pad 14, a volume button 17 is arranged on the side wall of the shell 11, a battery compartment 8 is arranged inside the shell 11, and a status indicator light 15 is arranged on the surface of the shell 11 near the lower end.

[0048] Furthermore, the status indicator light 15 is electrically connected to the main control board inside the handle 1, and the status indicator light 15 is used to display the battery power status, operation status and connection status of the virtual reality interactive handle.

[0049] In this embodiment, the display device 21 is a TF82-TK800 model projector, and its supporting power supply and control switch can also be provided by the manufacturer. In addition, the circuits, electronic components and modules involved in the utility model are all prior art, and those skilled in the art can fully implement them. Needless to say, the content protected by the utility model does not involve improvements to the internal structure and method, and the panoramic view of the exhibition hall is projected onto the wall.

[0050] Furthermore, the control terminal 2 is designed based on the AT89C51 single-chip microcomputer, and uses the single-chip microcomputer minimum system as the signal processing circuit. The pulse level from the sampling and shaping output circuit is input into the / INTO pin of the single-chip microcomputer AT89C51. The control terminal 2 combines the motion posture with the marking light spot to locate the handle 1 and the signal ray emitted by the operating subject.

[0051] Example 2

[0052] As a second embodiment of the present invention, in order to facilitate multiple people to share virtual reality, the present invention provides a handle 1, as a preferred embodiment, such as Figure 5-Figure 14 As shown, the handle 1 includes an operation signal transmitter, a marking signal transmitter and a wireless network module;

[0053] The operation signal transmitting element is used to transmit the operation signal to the operation object;

[0054] The marking signal transmitting element is used to transmit a positioning marking light spot to an external display device;

[0055] The wireless network module is used for data interaction.

[0056] In this embodiment, the operating signal transmitter uses a remote control carrier frequency of 38KHz (duty cycle of 1:3). When a key is pressed, the system first transmits a complete full code, and then transmits a series of simple codes after a delay until the key is released and stops transmitting. The simple code repeats with a delay of 108ms, and the interval between each two leading pulse rising edges is 108ms, wherein the leading high level is 4.5ms, the low level is 4.5ms, the system code is 8 bits, the data code is 8 bits, a total of 32 bits, data 0 is represented by a high level of 0.5625ms+a low level of 0.5625ms, and data 1 is represented by a high level of 0.5625ms+a low level of 1.6875ms, a simple code leading code+the inverse code of the system code bit 0+the end bit (05625ms) high level, the role of each part of the code, the leading code is used to notify the receiver that the following is the remote control data, the system code is used to distinguish which model of data it is, and the receiving end

[0057] In this way, it is judged whether the subsequent data is an instruction to be executed. The data code is used to distinguish which key is pressed. The receiving end makes a judgment on what action should be performed based on the data code. The short code is sent when the key is pressed continuously. It tells the receiving end that a certain key is being pressed continuously. The key to the remote control data transmission system is the reliability of data transmission. In order to improve the reliability of encoding, the system code and data code are followed by an identical code or an inverse code for error checking.

[0058] Furthermore, the display device 21 is internally installed with an intelligent system, which includes a sensor module, a button module, a single-chip computer module, a VR model, a display module and a power module.

[0059] The sensor module is used to monitor and collect signal data in real time;

[0060] The key module is used to operate the control data screen;

[0061] The single-chip microcomputer module is used to process and analyze the collected signal data;

[0062] VR model is used to display the data screen of the display module;

[0063] The power module is used to supply power to the circuit to ensure the normal operation of the circuit.

[0064] The sensor module includes visibility sensor, plane sensor, spherical sensor, proximity sensor, contact sensor and time sensor, and the VR model includes 2D drawing, 3D model, texture mapping, data model and information acquisition module.

[0065] The data conversion process is as follows Figure 1 As shown, the 2D drawing uses the layered principle of GIS to classify the buildings in the virtual environment. After adding the elevation data, the 3D model is automatically generated, and sensors can be added. The main types include contact sensors, plane sensors, spherical sensors, proximity sensors, visibility sensors and time sensors. These sensors provide a human-computer interaction interface for the virtual environment interaction model.

[0066] The spatial information and attribute information of all layers are saved in the Shapefile file. Shapefile is a vector storage structure used to store the spatial information and attribute information of points, lines, and surfaces. The Shape item in each row of records in the Shapefile table represents the spatial data of the primitive, such as points, polylines, polygons, etc., which is stored as long binary data, and the remaining items represent the attribute information of the primitive.

[0067] The texture map of the building uses a thin rectangular surface map, and the thin rectangular body is tightly attached to a certain surface of the building. This thin rectangular body is also called a mapping carrier. In VRML, the center of the Box rectangular body is generated by default at the origin, so that the ultra-thin surface of the mapping carrier is located in the YZ plane, and the center point is moved to the top of the origin at a distance of half the height of the mapping carrier, which is the orthographic projection of the building. One of the sides is at an angle α with the Y axis. The white mapping carrier rotates clockwise around the Z axis at an angle α, and then moves the mapping carrier to the corresponding side of the building, so that the mapping carrier coincides with the center line of the wall corresponding to the orthographic projection side of the building in the Z axis direction, and moves the mapping carrier to the correct position according to the height of the building from the ground and the relative position of the mapping carrier on the wall.

[0068] The texture rotation angle α is obtained as follows:

[0069] The coordinates of the two end points at the bottom of the building wall are known to be pl(X,Y) and p2(X,Y).

[0070] If pl.Y=p2.Y, then α=0

[0071] If pl.X=p2.X, then α=π / 2

[0072] otherwise,

[0073] If (p2.Y-p1.Y / p2.X-p1.X)>0

[0074] Then α=θ otherwise α=π-θ

[0075] The VTN model is a motion model of the human-computer interaction process, which is mainly used to solve the problem of uniform motion in virtual reality.

[0076] When navigating from the starting point pl to p4, ideally, we should keep a constant speed. But in fact, in VRML virtual reality, speed is measured by the step length per time interval. If we keep a constant speed, the step length L per second is a fixed value. When running from p1 to the turning point p2, the step length L in the next second may deviate from the track. We need to stop at p2 and rotate the view to the direction where p2 points to P3, and then move forward. Because we turn at p2, we don’t move forward for the last time. We stop directly at p2. In terms of visual perception, this will cause a sudden change in speed, affecting the realism of movement in virtual reality. This is linear speed.

[0077] Linear Pace Mutation (LPM) problem.

[0078] The view tracking navigation model designed in VRTool can avoid the occurrence of LPM. The algorithm is as follows:

[0079] A navigation route is known, from the starting point p1, along p2, p3 to the end point P4, the forward time is T (excluding the rotation time at the turning point).

[0080] In three dimensions, when a person moves along a navigation route, the line of sight must be consistent with the navigation route, and the line of sight must be adjusted during movement. Therefore, the navigation process can be divided into two parts: moving forward and rotating on the spot at a turn to ensure that the line of sight is consistent with the navigation route.

[0081] S 12, S twenty three, S 34 are the distances between p1 and p2, p2 and p3, and p3 and p4 respectively:

[0082]

[0083]

[0084]

[0085] Average step length per second v = S 12+ S 23+ S 34T

[0086] In order to eliminate the sudden change in speed near the turning point, the deviation of the corrected step size per second is introduced

[0087] The variable Δv,

[0088] t 12= S 12 / v

[0089] (v+Δ v 12)*[ t 12]= S 12

[0090] Similarly, the velocity deviations of the line segments from p2 to p3 and from p3 to p4 can be obtained as follows:

[0091] Δ v 23 and Δ v 34

[0092] Let the number of steps from p1 to p2 be N 12,

[0093] t 12-[ t 12]≥0.5, then N 12=[ t 12]+1, otherwise N 12=[ t 12]

[0094] The same can be said N 23 and N 34.

[0095] Find the rotation angle of the viewing angle. In VRML-based virtual reality, the viewpoint includes two parameters: position[3] and orientation[4] arrays. The array position[3] stores the three-dimensional coordinates of the viewpoint position. The first three elements of the array orientation[4] are the rotation axis of the line of sight, and the last element is the rotation angle of the line of sight. An important feature of the roaming line of sight rotation angle in virtual reality is that the line of sight angle of the current viewpoint is related to the previous line of sight angle. The line of sight angle θ of each line segment is defined as the angle between the line segment and the starting point of the line segment and the positive direction of the X-axis. The line of sight angle θ can also be used as an attribute of each node. The θ value of the last node defaults to the same as the θ of the previous node.

[0096]

[0097] like p 2y= P 1 year, and P 2χ< P 1χ, then θ 12=π

[0098] like P 2χ≥ P 1χ, then θ 12 = θ

[0099] like P 2χ< P 1χ, then

[0100] The same can be said θ 23 and θ 34

[0101] Define the function f(v, Δv, N, θ 1, θ 2, m), v is the unit step length, Δv is the step length deviation variable, N is the number of steps, θ 1 is the sight angle of the starting point, θ 2 is the sight angle of the end point, and m is the rotation frequency.

[0102] Loop N times:

[0103] Character position[0]+=v+Δv

[0104] Character position[2]+=v+Δv

[0105] If the loop ends, then:

[0106] Loop m times,

[0107] Character orientation[3]+=(θ 2- θ 1) / m

[0108] Specifically, the marker signal transmitter includes a motion sensor, which obtains the motion posture of the virtual reality interactive handle. The motion sensor is a nine-axis motion sensor such as Fig.10 The nine-axis motion sensor includes a three-axis angular velocity meter, a three-axis accelerometer and a three-axis magnetometer, which are integrated into a motion sensor chip. The motion sensor as a whole has a higher degree of overlap in its spatial coordinate system than the three sensors installed separately, and can accurately capture the motion posture of the virtual reality interactive handle.

[0109] Furthermore, the operation signal transmission adopts the mature PT2262 coding remote control on the market. This remote control is 12-bit three-state. The coding chip PT2262 and the wireless carrier frequency integration can provide 531441 different address codes. Electromagnetic conversion, high efficiency, high transmission power, low power consumption, using surface acoustic wave device (SAW) frequency stabilization, 6.5G ultra-high frequency transistor.

[0110] It is worth mentioning that the signal reception of the wireless network module adopts the NFR24L01 dedicated integrated chip, and the single-chip microcomputer realizes data transmission. The transmission distance can reach about 60m. NFR24L01 is a dedicated wireless communication module. The nRF24L01 chip works in 2.4GH global, open ISM, with a transmission rate of 2Mbps. It can realize voice and data transmission, and can communicate with the computer interface through the single-chip microcomputer. In addition, it is small in size and can be made into a very small RF module, which can establish a wireless communication system in a timely and convenient manner.

[0111] Example 3

[0112] As a third embodiment of the present invention, in order to facilitate operation, the present inventors set a clickable touch pad 14 as a preferred embodiment. Fig.15 and Fig.16 As shown, the clickable touchpad 14 is used to control the direction of the operation object. The clickable touchpad 14 includes two layers of film 141, two layers of ITO film 142 are arranged between the two layers of film 141, and a connecting block 143 and a gasket 144 are arranged between the two layers of ITO film 142.

[0113] The handle 1 realizes data exchange with the control terminal 2 through the wireless network module

[0114] In this embodiment, the operator can operate the clickable touch pad 14 and press the thumb on the surface film 141 of the clickable touch pad 14 to make the bottom of the ITO film 142 contact the upper and lower electrodes of the pad 144 conductive, driving the exhibition hall to rotate in place.

[0115] It is worth mentioning that the clickable touch pad 14 adopts a resistive touch panel, which is mainly composed of two sets of upper and lower ITO conductive layers stacked together. When in use, pressure is used to make the upper and lower electrodes conductive. The controller detects the voltage change of the panel and calculates the contact point position for input. The four-wire resistive type has a conductive layer on the surface of the polyresin and a sensor on the bottom layer of the glass separated by many tiny spacers. The IT0Glass and ITO Film are wired in X and Y axes. The outside world applies a uniform voltage to the surface layer, and then presses down from the surface layer to contact the bottom layer, so that the upper and lower currents are connected to generate a potential difference. The controller reads the relative voltage from the four sides and calculates the position and trajectory of the touch relative position and coordinates.

[0116] On the other hand, the present invention also provides a method for using the exhibition hall system based on virtual reality interaction, and the method for using is as follows:

[0117] S1. Operation: The 3D model is transmitted to the display device 21, the display device 21 is turned on, the handle 1 is held by hand, the power button 12 on the handle 1 is pressed, the marking signal transmitter of the handle 1 emits a positioning marking light spot, and the intelligent system in the display device 21 captures the positioning marking light spot emitted by the handle 1 to determine the position of the handle 1. The operator can operate the clickable touch pad 14, and press the thumb on the surface film 141 of the clickable touch pad 14 to make the upper and lower electrodes of the contact pad 144 at the bottom of the ITO film 142 conduct, drive the exhibition hall to rotate in situ, press the volume button 17, the operation signal transmitter transmits the signal to the control terminal 2 to adjust the volume on the display device 21, press the return button 13, the operation signal transmitter transmits the signal to the control terminal 2 on the display device 21, and the operation subject of the virtual world emits a signal ray to return to the initial interface;

[0118] S2, signal processing: the sensor module is used to monitor and collect signal data in real time, the key module is used to operate the control data screen, the single-chip computer module is used to process and analyze the collected signal data, the VR model is used for the display module to display the data screen, and the power module is used to power the circuit to ensure the normal operation of the circuit;

[0119] S3, data interaction: the marking signal transmitter emits a positioning marking light spot to the display device 21, and the motion sensor of the marking signal transmitter obtains the motion posture of the virtual reality interactive handle and sends it to the control terminal 2 via the wireless network module. The control terminal 2 combines the motion posture with the marking light spot to locate the virtual reality interactive handle. The operation signal emitted by the operation signal transmitter is displayed on the display device 21 as a signal ray emitted by the operating subject of the virtual world. The marking signal transmitter emits a positioning marking light spot to the display device 21 pointing to the door, which can be switched to the place outside the exhibition hall. When the positioning marking light spot appears on the arrow in the scene, press the trigger key 16 on the handle 1 to interact with the scene jump.

[0120] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An exhibition hall system based on virtual reality interaction, comprising a handle (1) and a control terminal (2), characterized in that: The control terminal (2) is electrically connected to a display device (21), the handle (1) comprises a shell (11), the shell (11) has a streamlined arc shape, a power button (12) is arranged on the surface of the shell (11), a return button (13) is arranged above the power button (12), a clickable touch pad (14) is arranged above the return button (13), a trigger button (16) is arranged below the clickable touch pad (14), a volume button (17) is arranged on the side wall of the shell (11), a battery compartment (8) is arranged inside the shell (11), and a status indicator light (15) is arranged on the surface of the shell (11) near the lower end; The handle (1) internally comprises an operation signal transmitter, a marking signal transmitter and a wireless network module; The operation signal transmitting element is used to transmit an operation signal to the operation object; The marking signal transmitting element is used to transmit a positioning marking light spot to an external display device; The wireless network module is used for data interaction. When a key is pressed, the system first transmits a complete full code, and then transmits a series of simple codes after a delay until the key is released, that is, the transmission stops; The display device (21) has an intelligent system installed inside, and the intelligent system includes a sensor module, a key module, a single-chip computer module, a VR model, a display module and a power module. The sensor module is used for real-time monitoring and acquisition of signal data; The button module is used to operate the control data screen; The single chip microcomputer module is used to process and analyze the collected signal data; The VR model is used for displaying the data screen of the display module; The power supply module is used to supply power to the circuit to ensure normal operation of the circuit; The sensor module includes a visibility sensor, a plane sensor, a spherical sensor, a proximity sensor, a contact sensor and a time sensor; The VR model includes 2D drawing, 3D model, texture mapping, data model and information collection module, wherein the 2D drawing uses the layering principle of GIS to classify the buildings in the virtual environment, automatically generates a 3D model after adding elevation data, and adds sensors, including contact sensors, plane sensors, spherical sensors, proximity sensors, visibility sensors and time sensors, which provide a human-computer interaction interface for the virtual environment interaction model; The spatial information and attribute information of all layers are stored in Shapefile files. Shapefile is a vector storage structure used to store the spatial information and attribute information of points, lines, and surfaces. The Shape item in each row of records in the Shapefile table represents the spatial data of the primitive, including points, polylines, and polygons, which are stored in long binary data, and the remaining items represent the attribute information of the primitive. The texture map of the building uses a thin rectangular surface map, and the thin rectangular body is tightly attached to a certain surface of the building. This thin rectangular body is also called a mapping carrier. In VRML, the center of the Box rectangular body is generated by default at the origin, so that the ultra-thin surface of the mapping carrier is located in the YZ plane, and the center point is moved to the top of the origin at a distance of half the height of the mapping carrier, which is the orthographic projection of the building. One of the sides is at an angle α with the Y axis. The white mapping carrier rotates clockwise around the Z axis at an angle α, and then moves the mapping carrier to the corresponding side of the building, so that the mapping carrier coincides with the center line of the wall corresponding to the orthographic projection side of the building in the Z axis direction, and moves the mapping carrier to the correct position according to the height of the building from the ground and the relative position of the mapping carrier on the wall.

2. The exhibition hall system based on virtual reality interaction according to claim 1, characterized in that: The clickable touch panel (14) is used to control the directional movement of an operation object, and the clickable touch panel (14) comprises two layers of surface films (141), two layers of ITO films (142) are arranged between the two layers of the surface films (141), and a connecting block (143) and a gasket (144) are arranged between the two layers of the ITO films (142).

3. The exhibition hall system based on virtual reality interaction according to claim 1 is characterized in that: The handle (1) realizes data interaction with the control terminal (2) via a wireless network module.

4. A method for using an exhibition hall system based on virtual reality interaction, characterized in that: The exhibition hall system based on virtual reality interaction as described in any one of claims 1 to 3 has the following operating steps: S1. Operation: The 3D model is transmitted to the display device (21), the display device (21) is turned on, the handle (1) is held by hand, and the power button (12) on the handle (1) is pressed. The marking signal transmitter of the handle (1) emits a positioning marking light spot. The intelligent system in the display device (21) captures the positioning marking light spot emitted by the handle (1) to determine the position of the handle (1). The operator can operate the clickable touch pad (14) and place the thumb on the surface film (141) of the clickable touch pad (14) to press, so that the upper and lower electrodes of the contact pad (144) at the bottom of the ITO film (142) are connected, driving the party building exhibition hall to rotate in place. The volume button (17) is pressed, and the operating signal transmitter transmits a signal to the control terminal (2) to adjust the volume on the display device (21). The return button (13) is pressed, and the operating signal transmitter transmits a signal to the control terminal (2) on the display device (21) as the operating subject of the virtual world emits a signal ray to return to the initial interface. S2, signal processing: the sensor module is used to monitor and collect signal data in real time, the key module is used to operate the control data screen, the single-chip computer module is used to process and analyze the collected signal data, the VR model is used for the display module to display the data screen, and the power module is used to power the circuit to ensure the normal operation of the circuit; S3, data interaction: the marking signal transmitter emits a positioning marking light spot to the display device (21), the motion sensor of the marking signal transmitter obtains the motion posture of the virtual reality interactive handle and sends it to the control terminal (2) via a wireless network module, the control terminal (2) locates the virtual reality interactive handle by combining the motion posture with the marking light spot, the operation signal emitted by the operation signal transmitter is displayed on the display device (21) as a signal ray emitted by the operating subject of the virtual world, the marking signal transmitter emits a positioning marking light spot to the display device (21) pointing to the door, and the display device (21) can be switched to a place outside the exhibition hall, and when the positioning marking light spot appears on the arrow in the scene, the trigger key (16) on the handle (1) is pressed to perform scene jump interaction.

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