282results about How to "Expand the shooting range" patented technology

The invention relates to an iris identification device by using a camera array and a multimodal biometrics identification method. The system comprises a plurality of cameras, a support structure, an indication unit, a light source, an acquisition card, a computer, and the like, wherein positions of the plurality of cameras can be freely arranged as required. The identification method is implemented according to the following steps that: a person stands naturally and aligns eyes with one of the cameras according to hints; the camera array is started, and each camera starts to acquire images; the computer circularly processes the images of the plurality of cameras at regular intervals and performs human eye detection respectively; and when a human eye image is detected in a path of signal, the path of the image is intensively processed and iris identification is performed. Based on the camera array device, the iris system can acquire iris images at different positions and different heights, so the acquisition range is widened, and the usability of the iris identification system is improved.

The invention provides an autonomous precision landing system of an unmanned aerial vehicle on a motion platform and a landing method. The autonomous precision landing system comprises a rotor unmanned aerial vehicle 1, an airborne platform camera 2, an airborne computer 3, airborne undercarriage magnetic devices 4, a vehicle-mounted iron ground 6 and a multi-layer nested identifier 7, wherein the multi-layer nested identifier 7 is composed of two-dimensional codes which are mutually overlapped, different in size, different in pattern and asymmetric in distribution; the two-dimensional codes with a small size cover the two-dimensional code with a large size; the two-dimensional code with a large size is covered with a plurality of two-dimensional codes with a small size along the advancing direction of a motor vehicle 5, and the number of the two-dimensional code with the maximum size is only one. According to the invention, the platform camera carried by the rotor unmanned aerial vehicle is utilized, the multi-layer nested identifier 7 is recognized by adopting the airborne platform camera 2, a vision-assisted rotor unmanned aerial vehicle autonomous landing system which is high in precision, good in reliability and low in cost is provided, and the system is particularly applicable to landing at the top end of a moving motor vehicle.

The embodiment of the invention provides a video call method, a terminal and a computer-readable storage medium. The method is applied to a first terminal; the first terminal comprises a first display screen and a second display screen, which are oppositely arranged; the first terminal further comprises a front-facing camera and a rear-facing camera; the front-facing camera and the first display screen are at the same side; and the rear-facing camera and the second display screen are at the same side. The method comprises the steps of: in a state that video call connection with a second terminal is established, opening the front-facing camera and the rear-facing camera to acquire video images; sending a first video image acquired by the front-facing camera and a second video image acquired by the rear-facing camera to the second terminal; receiving a third video image sent by the second terminal; and respectively displaying the third video image on the first display screen and the second display screen, wherein the third video image is a video image acquired by the first camera of the second terminal. By means of the video call method, the terminal and the computer-readable storage medium provided by the invention, the problems of blank screen and fussy operation due to the fact that the front-facing camera and the rear-facing camera need to be repetitively switched in a video call process can be solved.

The invention discloses a camera and a display, and relates to the field of display equipment. The camera is arranged in a display body and comprises a camera module, a transmission device and a driving device; the driving device is in transmission connection with the transmission device, the transmission device is in transmission connection with the camera module, and the driving device is configured to drive the transmission device to move to drive the camera module to extend out of or retract into the display body and drive the camera module to perform horizontal rotation and pitching rotation. The camera can be built in, the shooting angle can be automatically adjusted in all directions, the angle adjustment is more accurate, and then the flexible shooting requirement is met. The display disclosed by the invention comprises a display body and the camera, and the camera can extend or retract relative to the display body and can perform horizontal rotation and pitching rotation afterthe camera extends out of the display body. The displayer is integrally coordinated, concise in appearance, accurate in shooting angle and wide in shooting range.

The invention discloses an intelligent tracking system based on a TOF 3D camera. The system comprises a positioning system, a processing system and a shooting system. The positioning system adopts a TOF-based 3D camera; and the processing system is a host server. According to the system, two schemes are made: one scheme is characterized by obtaining depth images through a 3D camera; after analyzing a selected tracking object, carrying out conversion on the coordinates of a target person and distance calculation; and then, carrying out shooting through a shooting camera; and the other scheme is characterized by obtaining the depth images through the 3D camera; after analyzing, marking ID for each person; and locking a target through the ID and storing the track. The information can be transmitted to the host server accurately in real time through a series of processing, so that tracking of the target can be realized, mobile track of the target can be obtained; and the system is not influenced by external factors through such a manner, and is full-automatic in tracking, high in precision and simple and convenient to operate.

The invention discloses a remote monitoring device and monitoring method based on a 5G network environment, and belongs to the technical field of monitoring devices, the remote monitoring device comprises a bottom plate, a top plate and a rack, the lower surface of the top plate is fixedly connected to the upper surface of the bottom plate through a side plate, and a first adjusting mechanism is arranged between the top plate and the side plate; the number of the first adjusting mechanisms is two. According to the invention, the rack, the second adjusting mechanism and the fixed shell are arranged, and the second adjusting mechanism can move randomly under the cooperation of the rack during working, so that the fixed shell can be driven to move along the rack, the position of the camera can be effectively changed, and the shooting range of the camera is greatly improved; by arranging a first linear actuator, if fixed-point shooting of the camera is needed without affecting movement ofthe camera, the second electric push rod is controlled to extend to drive the camera to move to a high position, the first bevel gear and the second bevel gear are separated, and therefore the cameracannot be driven to rotate for shooting even if the fixing shell moves.

The invention relates to video recording equipment, particularly to an electric rotating slideway for movable camera shooting, which includes a support base, wherein a rotary disc is arranged on the support base; a first slideway is vertically fixed on the rotary disc; the slideway also includes a first motor fixed on the support base, the first transmission mechanism connected between the first motor and the rotary disc, and a first sliding block seat arranged on the first slideway and capable of sliding along with the first slideway as well as a second slideway and a second sliding block seat arranged on the second slideway and capable of sliding along with the second slideway; the second slideway is rotatably connected with the first sliding block seat through a horizontal rotating shaft; a second motor is fixed on the first sliding block seat; and a second transmission mechanism is connected between the second motor and the rotating shaft. The electric rotating slideway has simple and light structure and low construction cost, and is portable, the uniform-speed rotating camera shooting within the length range of the first sliding block of the camera at any height is possible.

A preloadable, swappable and reloadable cylindrical magazine for rubber band and slingshot guns. Exhausted magazines can be replaced in seconds, allowing extended shooting. The release mechanism of projectiles is self-contained; no trigger as it is understood is required, making it particularly suitable in the design of Gatling guns. Hooks in front and fingers at rear engage energized projectiles. The rotation of the magazine causes fingers to tilt forward and projectiles to free themselves by sliding up the tilted fingers without outside disturbances, assuring the best shooting accuracy ever. A pawl and a ratchet wheel control the rotation of magazines. Depending on how long the pawl is disengaged, single shots or continuous firing is equally easy to execute. The successive firing rate is determined by how fast the magazine can rotate. Modular design allows through combinations of components numerous configurations for different sizes and numbers of elastic bands and various designs of toy guns.

The invention discloses a hand-eye calibration and coordinate conversion method. The method comprises the steps that a target is arranged at the tail end of a mechanical arm; the tail end of the mechanical arm is controlled to move from the initial coordinate point to the terminal point coordinate point, in the process that the tail end of the mechanical arm moves from the initial coordinate pointto the end point coordinate point, the n-time targets of the three-dimensional coordinates in a camera coordinate system and the three-dimensional coordinates of a machine arm coordinate system are recorded, coordinates of the n groups of targets under the camera coordinate system and coordinates of the machine arm coordinate system are obtained, the coordinates of the target under the camera coordinate system and the dimensional coordinates of the machine arm coordinate system are substituted into a mapping matrix between the camera coordinate system and the machine arm coordinate system tosolve the mapping matrix, and n groups of fitting points are obtained; a residual graph is drawn according to the n groups of initial fitting points, the m groups of outlier points in the n groups ofinitial fitting points are removed, and the n-m groups of target fitting points are substituted into a mapping matrix between the camera coordinate system and the machine arm coordinate system, so that a matrix transformation relation between the camera coordinate system and the mechanical arm coordinate system can be obtained.

The invention relates to monitoring equipment with a radiating function based on face recognition. The monitoring equipment comprises a main body, a lens, a mounting base, a support rod, and a top plate, and further comprises a regulating mechanism, a center control mechanism and two radiating mechanisms; the regulating mechanism comprises a first driving component, a base, a power shaft, a spacing plate and an air cylinder; the radiating mechanism comprises a second driving component, a transmission component, a guide rod, a lifting block, a connecting rod, a side baffle plate, a cleaning brush, a dustproof screen and a fan. The angle regulation of the monitoring equipment can be realized through the regulating mechanism in the monitoring equipment with the radiating function based on face recognition, thereby enlarging the photographing range of the monitoring equipment and improving the practicability of the monitoring equipment; the heat in the main body can be quickly dissipated to realize the radiating of the monitoring equipment, so that the monitoring equipment can work as normal at high temperature environment, and the practicability of the monitoring equipment is furtherimproved.

A portable wireless terminal, comprising a main body, a folder hinged to the main body so as to be opened from and closed into the main body, and a camera lens assembly rotatably connected to a hinge axis of the folder, such that the camera lens assembly is formed as a body tube so as to be drawn into and out from the main body in the direction of the hinge axis. The camera lens assembly of the portable wireless terminal is drawn out from one side of the terminal, to not limit the range of its photographing angle by the main body or the folder of the terminal. Further, the camera lens assembly drawn out from the main body of the portable wireless terminal is easily adjusted directionally, to allow for convenient manipulation by users.

The invention discloses an intelligent security hall lamp with a camera function. The intelligent security hall lamp with the camera function comprises a wall and a support block fixed on the wall, alamp holder is arranged at the right end of the support block, a lamp is arranged at the lower end of the lamp holder, a moving cavity is formed in the lamp holder, a camera is arranged in the movingcavity, a moving mechanism used for controlling the moving and rotating of the camera is arranged in the lamp holder, the moving mechanism comprises a transmission cavity and moving grooves located onthe upper and lower two sides of the moving cavity, a rotating block is arranged at the left end of the camera, and a moving plate capable of driving the rotating block to move is arranged at the left end of the rotating block. During working of the intelligent security hall lamp with the camera function, the camera can shoot and monitor in a fixed-point mode through intelligent control of the device, the camera also can be moved and then shoot in a rotating mode, concealment of the camera is improved, the camera is inconvenient to be discovered, and the shooting range of the camera is enlarged.

The invention relates to face recognition technology based monitoring equipment convenient to disassemble and assemble. The equipment comprises a camera, a fixing base, a fixing rod, a connecting mechanism, a rotating mechanism and a central control mechanism; the rotating mechanism comprises a driving assembly, a sleeve, a rotating shaft, a second gear and a first limiting block; the connecting mechanism comprises a first limiting assembly, a second limiting assembly, a transmission rod, a sliding block and a sliding groove; the first limiting assembly comprises a clamping connection rod, a first spring, a first clamping groove, a second clamping groove, a second limiting block and a shell; the second limiting assembly comprises a first connecting hole, a first connecting rod, a second connecting hole, a second connecting rod, a bottom plate and a second spring. In the face recognition technology based monitoring equipment convenient to disassemble and assemble, the disassembly and assembly convenience of the camera is improved through the connecting mechanism, so that the practicability of the monitoring equipment is improved; rotation of the camera in the horizontal direction isachieved through the rotating mechanism, so that the shooting range of the monitoring equipment is expanded.

The invention provides a multiple camera module-based image processing method, an image processing device, equipment and a medium. According to the embodiment of the invention, a first camera module is currently in the main shooting state, and a target shooting object in a framing area of the first camera module is not in the initial framing area of a second camera module. A framing view field ofthe second camera module is adjusted, wherein the adjustment framing area of the second camera module covers the target shooting object. The fusion processing is carried out on the auxiliary image acquired by the second camera module and the main image acquired by the first camera module. The effect of enhancing the image quality is achieved. Furthermore, due to the fact that the second camera module is adjusted, the shooting range of the second camera module is enlarged, the adjusted view finding area obtained after adjustment can cover the area where the initial view finding area does not exist, and image quality enhancement of at least part of the image area where image quality enhancement cannot be conducted can be achieved.

The invention provides a panorama camera cell phone. The panorama camera includes a front camera and a rear camera and also includes a panorama photographing module connecting the front camera with the rear camera. The panorama photographing module controls the front module and the rear module to shoot and obtain a first image and a second image respectively. The panorama photographing module splices the first image and the second image in a panorama form, so that a panorama image is formed. Therefore, shooting range can be effectively enlarged, a shooting function is added for the cell phone and the utilization rate of the camera is increased. The invention also provides a panorama photographing method.

The invention belongs to the technical field of intelligent home and discloses a mounting structure for a camera for intelligent home data collecting. The mounting structure comprises a mounting frame. A mounting plate is arranged on the top of the mounting frame; a motor mounting seat is mounted on one side wall of an inner cavity of the mounting frame, and a motor is mounted on the outer wall ofthe motor mounting seat; a through groove is formed in the top middle of the mounting frame, and a moving lead screw is inserted inside the through groove transversely and rotatably; limiting blocksare arranged on the outer sides of the two ends of the through groove correspondingly, and limiting switches are mounted on the outer walls of the limiting blocks; the outer wall of the moving lead screw is connected with a moving sliding block in a threaded mode; and a groove is formed in the bottom of the mounting plate, the bottom end of the groove is connected with a camera mounting seat through a universal joint, and miniature electric telescopic rods are mounted on the two sides of the top of the camera mounting seat correspondingly. Precise adjustment is achieved, the efficiency is high, the intelligent degree is high, a shot figure is not liable to be fuzzy, the camera shooting range is expanded greatly, applicability is high, and the quantity of collected data is large.

The invention relates to a network camera system, comprising a network camera base, a camera body, a control unit, a suspension system and a rotation mechanism. Under the control of the control unit, the suspension system supports the camera body to suspend over the network camera base. The rotation mechanism is fixedly installed in the camera body, and drives the camera body to rotate under the control of the control unit. The camera body transmits data in a wireless manner. Therefore, the camera body in the network camera system can overcome the limitation function of the traditional connection wires and the network camera base structure, and is not stopped by anything under the rotation driving effect of the rotation mechanism, thus the camera body can rotate for any angle even any turns, the shooting range is enlarged, and thereby the customer can view a 360-degree complete picture via the camera body, and the user experience is improved.

The invention discloses a camera capable of achieving long-range shooting and super macro shooting, which comprises a camera module. The camera module comprises a module casing, an optical lens assembly and an imaging target surface assembly, wherein the optical lens assembly and the imaging target surface assembly are arranged in the module casing. The camera is characterized in that axial distance between the optical lens assembly and the imaging target surface assembly can be adjusted according to the axial distance between an object to be shot and the optical lens assembly. Due to the fact that the axial distance between the optical lens assembly and the imaging target surface assembly can be adjusted according to the axial distance between the object to be shot and the optical lens assembly, users only need to adjust a focusing key of the camera in order to shoot objects at any positions within a large range from infinity to 0.005m, clear images can all be observed on a television screen, and any devices are not required to be installed in front of and behind the lens. A shooting range of the camera is enlarged.

The invention discloses an image collection device for vehicle insurance loss assessment. The image collection device comprises a base, a hydraulic pump, a first connecting rod, a first camera and pulleys, at least four pulleys are provided and the pulleys are respectively arranged on a lower surface of the base, the hydraulic pump is fixed to an upper surface of the base, the first connecting rod is vertically arranged, and a lower end of the first connecting rod is connected with a piston rod on the hydraulic pump, the piston rod can drive the first connecting rod to ascend and descend, the first camera is arranged at an upper end of the first connecting rod, and the first camera can rotate along a horizontal plane direction with the first connecting rod as the center shaft. The image collection device overcomes the following problem in the prior at: an insurance surveyor directly uses a mobile phone or a camera to shoot the damaged sites of an accident vehicle, due to the uncertainty of the accident environment and the damaged positions of the accident vehicle, the insurance surveyor cannot be comprehensively and accurately obtain the images of the damaged sites, thereby affecting the loss assessment result.

The invention discloses electronic equipment and an information processing method. The electronic equipment comprises a first body and a second body, and further comprises a connecting body and an image collection unit. The connecting body is used for connecting the first body with the second body and enabling the first body and the second body to relatively rotate. The image collection unit is arranged on the connecting body and used for adjusting the current collection range of the image collection unit to be the first collection range according to the first relative position generated after the first body and the second body rotate when a user uses the electronic equipment so that the image collection unit can collect a first image including a first physiological feature image corresponding to a first physiological feature of the user within the first collection range.

The invention relates to a monitoring camera with a self-cleaning function based on the Internet of things. The monitoring camera comprises a shell, a cleaning mechanism, a first support rod, a secondsupport rod, a steering mechanism, a central control mechanism and a fixing block, wherein the steering mechanism comprises a driving mechanism, a first transmission rod, a second transmission rod and a third transmission rod; the driving mechanism comprises a sliding block, a third gear, a driving shaft, a second motor and driving teeth; the cleaning mechanism comprises a support frame, a cleaning brush, a fourth transmission rod, a driving frame, a third support rod, a first gear, a second gear and a second motor. According to the monitoring camera with the self-cleaning function based on the Internet of things, upward and downward rotation of the monitoring camera is achieved via the steering mechanism, a shooting range is enlarged, a blind area range of the monitoring camera is effectively reduced, monitoring performance of the monitoring camera is improved, glass of the monitoring camera is cleaned by the cleaning mechanism, stains attached to the glass of the monitoring camera are reduced, and definition of images shot by the monitoring camera is improved.

The invention provides a liquid crystal display device. The liquid crystal display device comprises a liquid crystal panel, wherein the liquid crystal panel comprises a quantum dot color pixel layer, an upper polarizer, a liquid crystal switch unit and a lower polarizer which are sequentially stacked; the quantum dot color pixel layer comprises a red sub-pixel unit, a green sub-pixel unit and a blue sub-pixel unit. The display device further comprises a backlight module arranged under the liquid crystal panel, the backlight module comprises a back plate and a light-emitting device arranged on the back plate, and the light-emitting device comprises an LED light-emitting device and an optical collimating device arranged above the LED light-emitting device. The optical collimating device is arranged above the LED light-emitting device according to the Lagrange-Helmholtz invariant, so that the light-emitting aperture is increased, then the light emitting angle of backlight is reduced, light rays can be collimated and emitted to a certain degree, and therefore the problem of color crosstalk between pixels due to large backlight emitting angles when the liquid crystal panel displays images is solved.

The present invention is an apparatus and method for improving a person's basketball skills, in which wearing at least on glove for a period of time and then removing it results in an increase in hand speed, strength, and reflects, ball control, shooting range, and passing accuracy just to name a few. It is a method of wearing the glove while practicing various fundamental basketball skills then upon removal the very same skills will be executed with more accuracy, speed, strength, distance and control. It includes dorsal and palm portions with finger receptacles. At least one weighted element is applied to the dorsal side of the glove, while at least one touch desensitizing element is applied to locations on the palm side of the glove.

A light guide plate comprises an incident surface, an emergent surface and a reflection surface which is arranged opposite to the emergent surface. The incident surface is connected with the emergent surface and the reflection surface, and a plurality of micro structures which are arranged inside the light guide plate in a recessed mode are formed on the reflection surface. Every micro structure is a stripe groove with a cross section of a reversed V shape and provided with two opposite sidewalls, and each sidewall comprises a plurality of stepped parts which are sequentially connected. The sidewalls of the micro structures formed on the light guide plate are in the stepped shape, so that the step-shaped micro structures can collect light and further enable the emergent range of emergent light to be larger when compared with common sidewalls which have a plane V-shaped structure. The invention also provides a backlight unit with the light guide plate.

The invention relates to a human face recognition device having an angle adjusting function and convenient to disassemble and assemble. The device comprises a main body, two brackets and four propellers; a PLC, an adjusting mechanism and a disassembling and assembling mechanism are arranged in the main body; the adjusting mechanism comprises a lifting assembly and an adjusting chamber; an adjusting assembly is arranged in the adjusting chamber; the adjusting assembly comprises a first air pump, a first air cylinder, a first piston, a connecting rod, an adjusting rod and a swing rod; the disassembling and assembling mechanism comprises a protecting shell, a camera and a disassembling and assembling assembly; and the disassembling and assembling assembly comprises a first motor, a driving gear and two connecting units. According to the human face recognition device having an angle adjusting function and convenient to disassemble and assemble, through the adjusting mechanism, a shooting angle of the camera can be adjusted conveniently, so that a shooting range is expanded; and through the disassembling and assembling mechanism, the camera can be disassembled and assembled conveniently, so that the convenience of disassembling and assembling the camera is improved.

The invention relates to a large-aperture low-sensitiveness optical lens assembly which comprises a first lens, a second lens, a third lens and a fourth lens. The first lens is provided with positive light focal power, and the image side face of the first lens is a convex face. The second lens is provided with negative light focal power, and the object side face of the second lens is a concave face. The third lens is provided with an aspheric face and positive light focal power. The object side face of the fourth lens is a concave face, and the object side and the image side face are aspheric faces. The lens assembly meets the following relational expression: 0.3<F1 / TLT<1.0, 0.7<F / TTL<1.3, and D3 / D2<3. By means of the structure, when specific conditions are met, the lens assembly is beneficial for reducing the sensitivity of a system, promotes periphery resolution and illuminance, and improves the imaging effect.

The invention discloses a laparoscope with a liquid sucking function and with extension and retraction convenient to adjust. The laparoscope comprises a handle and a control device, a locating block is connected to the handle in a sliding mode, a rod body is arranged in the handle, a camera device is connected to the end, away from the handle, of the rod body in a rotating mode, a wire is arrangedat the end, away from the rod body, of the handle, and the handle is electrically connected with the control device through the wire; a liquid accumulation device is fixedly connected to the handle,a liquid accumulation cavity is formed in the liquid accumulation device, the liquid accumulation cavity is communicated with a liquid sucking pipe, and the liquid sucking pipe is fixedly connected with the handle; a piston is arranged in the liquid accumulation cavity, the piston is connected with a limiting block through a piston rod, and the limiting block penetrates the liquid accumulation device and extends to the handle. According to the laparoscope, the structure is stable, and the shooting angle of the camera device can be adjusted, so that the shooting range is increased; extension and retraction of the rod body can be adjusted, and the rod body can go deeply into an abdominal cavity, so that use is more flexible; the laparoscope is provided with the liquid accumulation device, and waste liquid influencing observation in the abdominal cavity can be discharged.

The invention relates to an unmanned vending machine with a high safety factor based on a blockchain technology. The unmanned vending machine comprises a main machine body, a shooting window and a fetching port; the main machine body is internally provided with a sealing mechanism and a shooting mechanism, the sealing mechanism comprises a supporting plate, a baffle, two guide rails, two lifting blocks, two second springs and two locking assemblies, and the shooting mechanism comprises a rotating shaft, a first driving assembly, a second driving assembly, a sliding groove, a swinging rod, a connecting rod and a camera. According to the unmanned vending machine with the high safety factor based on the blockchain technology, the blockchain technology is adopted for data storage, and the datasafety degree is high; moreover, the two locking assemblies can be driven to run by the sealing mechanism, the baffle at the fetching port cannot be opened under the condition that a user does not make a purchase, and therefore the anti-theft performance of the unmanned vending machine is improved; the portion in front of the unmanned vending machine can be monitored by the shooting mechanism, and therefore the safety of the unmanned vending machine is improved.

The invention discloses a handheld stabilizer which comprises a heading motor. A first included angle formed between the motor axis of the heading motor and the vertical direction is an acute angle. The vertical direction is the direction of the handheld stabilizer vertically perpendicular to the ground. According to the handheld stabilizer, the structure enables a transverse rolling motor, a pitching motor, a mobile phone clamp and other parts on the upper portion of the stabilizer to incline to the direction of a user, a mobile phone located in the mobile phone clamp and arranged verticallyand the heading motor are distributed in a dislocation manner in space, the situation that the bottom of the mobile phone bumps against the heading motor is avoided, by means of the structure of distributing the mobile phone and the heading motor in a dislocation manner in space, a connecting arm connected with the motor can be shortened, and therefore the stabilizer is more compact in structure and convenient to store at the same time.

The invention provides an automobile experiment teaching and demonstration platform. The platform comprises an experiment table body, an operation platform is arranged at the top of the experiment table body; a lifting device is arranged between the operation platform and the experiment table body; a shielding protection device is arranged between each side of the operation platform and the experiment table body; a panoramic camera and a tracking camera are also arranged on the operation platform; an adjusting device is arranged between the panoramic camera and the operation platform; a tracking adjusting device is arranged between the tracking camera and the operation platform; the experiment table body is also provided with a central processor, a wireless transmission module, a focus control unit, a lifting control unit, a tracking control unit and an image processing unit which are connected together, the wireless transmission module is connected with a control bracelet, a signal generator is arranged in the control bracelet, and the image processing unit is connected with the panoramic camera, the tracking camera and a projector. The platform has the advantages of being adjustable in height, high in use safety and good in teaching and demonstration effect.