Projection screen gesture control system and projection screen

Abstract

The present invention discloses a projection screen gesture control system and a projection screen, comprising a main control system, a gesture recognition component and a projection component, wherein the gesture recognition component is used to recognize gesture information of a controller in a specific recognition area and send the gesture information to the main control system, and the projection component comprises a winding motor, a cloth shaft, a screen and a projector, wherein the main control system sends a working instruction to the winding motor by acquiring information transmitted by the gesture recognition component, and the winding motor realizes the winding or unfolding of the screen by driving the cloth shaft to rotate, and controls the opening and closing of the projector at the same time, and compared with the traditional control method through mechanical buttons and remote controllers, the operation is simple and the sense of technology is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of projection screens, and in particular to a projection screen gesture control system and a projection screen. Background Art

[0002] Projection screen is one of the most commonly used products in projector peripheral equipment. Projection screen is the abbreviation of projection screen. Projection screen is an electronic device often used in daily office and home, but the existing use of projection screen is still relatively primitive. With the rapid development of technology, some other electronic devices can be controlled by gestures, which brings a lot of convenience to daily work and life. However, most of the existing projection screens are still controlled by mechanical buttons and wireless remote controls, and the operation method is relatively primitive. Summary of the invention

[0003] In view of this, the present invention discloses a projection screen gesture control system, which can realize gesture control of the projection screen.

[0004] The present invention discloses a projection screen gesture control system, comprising:

[0005] The main control system is connected to the terminal device via a wireless network receiving module, and the opening and closing of the main control system is controlled by the terminal device;

[0006] A gesture recognition component includes an infrared detection sensor, an infrared image forming module, a picture processing module, a signal conversion module and a transmission port. The infrared detection sensor is used to obtain gesture information within a recognition area and transmit the acquired gesture information to the infrared image forming module. The infrared image forming module forms an image of the information scanned by the infrared detection sensor, and the picture processing module analyzes and judges the formed image. The judgment result is then transmitted to the signal conversion module. The signal conversion module converts the image information into an electrical signal, and the electrical signal is sent to the main control system through the transmission port.

[0007] The projection assembly includes a winding motor, a cloth shaft, a screen and a projector. The main control system sends control information to the winding motor, and the winding motor retracts and releases the screen through the cloth shaft. At the same time, the main control system controls the opening and closing of the projector.

[0008] Furthermore, it also includes a positioning member. When the gesture recognition component sends information for rolling up the curtain to the main control system, the main control system controls the positioning member to close, and then the rolling motor rolls up the curtain through the cloth shaft.

[0009] Furthermore, it also includes a touch switch. When the curtain touches the touch switch, the touch switch sends an instruction to the main control system, and the main control system controls the positioning member to open and position the curtain.

[0010] Furthermore, the gesture recognition component also includes a rotating motor, which is connected to the infrared detection sensor. The main control system controls the projection component to retract or extend the screen according to the information transmitted by the gesture recognition component, and also controls the rotating motor to adjust the infrared detection sensor to the first recognition angle or the second recognition angle.

[0011] A projection screen, comprising a gesture control system as described in any one of claims 1 to 4, the projection screen also comprising a guide rail frame, the projection component is fixed by the guide rail frame and can move relative to the guide rail frame, and the gesture recognition component is fixed on the projection component.

[0012] Furthermore, the projection assembly includes a fixed rod, a winding bracket, a cloth shaft, a winding motor and a screen, the top end of the screen is fixedly connected to the guide rail frame via the fixed rod, the bottom end of the screen is fixedly connected to the cloth shaft, the cloth shaft is arranged in the winding bracket, one end is fixedly connected to the winding bracket via the winding motor, and the other end is rotatably connected to the winding bracket, and the winding motor can drive the cloth shaft to rotate in the winding bracket.

[0013] Furthermore, slide rails are respectively arranged on both sides of the guide rail frame, and both ends of the winding bracket extend into the slide rails respectively and can move in the vertical direction along the slide rails.

[0014] Furthermore, buffer grooves are respectively provided at both ends of the winding bracket, and a buffer spring, a push plate and a positioning ball are provided in the buffer groove. The buffer spring can push the positioning ball part to extend out of the buffer groove through the push plate, and the positioning ball can rotate relative to the push plate. An arc guide rail is provided in the slide rail, and the positioning ball part extends into the arc guide rail and moves in the vertical direction along the arc guide rail.

[0015] Furthermore, a positioning piece is provided on the guide rail frame, and the positioning piece is an electromagnet. The electromagnet is connected to the arc guide rail through a positioning hole, and the electromagnet adsorbs the positioning ball through the positioning hole. The electromagnet is provided with an adsorption groove that cooperates with the positioning ball.

[0016] Furthermore, the gesture recognition component includes an identification shell, a rotating motor and an infrared detection sensor. The identification shell is fixedly connected to the bottom surface of the winding bracket, one end of the infrared detection sensor extends into the identification shell through a rotating shaft and is rotatably connected to the identification shell, and the rotating motor is fixed in the identification shell and can drive the infrared detection sensor to rotate relative to the identification shell through the rotating shaft.

[0017] Compared with the prior art, the technical solution disclosed in the present invention has the following beneficial effects:

[0018] The gesture recognition component recognizes gesture information in a special recognition area and sends the recognized gesture information to the main control system. The main control system controls the operation or shutdown of the projection component through the recognized different information. The operation is simple and the sense of technology of the device is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the basic schematic diagram of the gesture control system;

[0020] Figure 2 This is a working principle diagram of the gesture recognition component;

[0021] Figure 3 This is the working principle diagram of the gesture control system;

[0022] Figure 4 It is a structural schematic diagram of a projection screen;

[0023] Figure 5 is a cross-sectional view of a projection screen;

[0024] Figure 6 for Figure 5 A magnified image of area A;

[0025] Figure 7 It is a schematic diagram of the structure of the gesture recognition component;

[0026] Description of the attached drawings

[0027] 100. Gesture control system; 10. Main control system; 11. Wireless network receiving module; 12. Terminal device; 20. Gesture recognition component; 21. Infrared detection sensor; 211. Rotating shaft; 22. Infrared image forming module; 23. Signal conversion module; 24. Transmission port; 25. Rotating motor; 26. Identification shell; 261. Rotating shaft hole; 262. Adjustment hole; 30. Projection component; 31. Winding motor; 32. Cloth shaft; 33. Curtain; 34. Fixing rod; 35. Winding bracket; 351. Buffer slot; 352. Buffer spring; 353. Push plate; 354. Positioning ball; 40. Positioning piece; 41. Touch switch; 42. Adsorption slot; 50. Guide rail rack; 51. Slide rail; 52. Arc guide rail. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to another component, or there may be a central component at the same time. Unless otherwise defined, all technical and scientific terms used in this article have the same meaning as those generally understood by technicians in the technical field of the present invention. It should also be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] It should also be noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0030] like Figure 1 As shown, the present invention discloses a projection screen gesture control system 100, which can control the retraction or extension of the projection screen by setting specific gestures. Compared with traditional mechanical button control and remote control, it is easy to operate and increases fun and a sense of technology.

[0031] The gesture control system 100 includes a main control system 10, a gesture recognition component 20, and a projection component 30. The gesture recognition component 20 is fixed on the projection component 30 and is used to obtain the control gesture of the controller in a specific recognition area, and send the obtained gesture information to the main control system 10, so as to control the projection component 30 through the main control system 10. In this embodiment, the controller can make a first control gesture and a second control gesture in the specific recognition area. The gesture recognition component 20 can send different recognition signals to the main control system 10 by recognizing the first control gesture and the second control gesture. The main control system 10 controls the projection component 30 to start the projection according to the recognition signal corresponding to the first control gesture; and controls the projection component 30 to stop the projection according to the recognition signal corresponding to the second control gesture.

[0032] like Figure 2 As shown, the gesture recognition component 20 includes an infrared detection sensor 21, an infrared image forming module 22, a picture processing module 221, a signal conversion module 23 and a transmission port 24. The infrared detection sensor 21 is used to obtain gesture information of the controller in the special recognition area, and transmit the acquired gesture information to the infrared image forming module 22. The infrared image forming module 22 forms an image of the information scanned by the infrared detection sensor 21, and transmits the image to the picture processing module 221. The picture processing module 221 analyzes and judges the image, and then transmits the judgment result to the signal conversion module 23. The signal conversion module 23 converts the image information into an electrical signal, and the electrical signal is sent to the main control system 10 through the transmission port 24. The main control system 10 analyzes the received recognition signal and sends different control commands to the projection component 30 according to different analysis results.

[0033] like Figure 3As shown, the projection assembly 30 includes a winding motor 31, a cloth shaft 32, a screen 33 and a projector. The winding motor 31 can drive the cloth shaft 32 to rotate. One end of the screen 33 is connected to the cloth shaft 32. When the winding motor 31 drives the cloth shaft 32 to rotate, the screen 33 can be retracted and extended. The projector cooperates with the screen 33 to project an image onto the screen 33. During operation, the main control system 10 analyzes the recognition signal corresponding to the first control gesture and sends a first control instruction to the winding motor 31. The winding motor 31 lowers the screen 33 through the cloth shaft 32. At the same time, the main control system 10 controls the projector to turn on and projects an image onto the opened screen 33. The main control system 10 analyzes the recognition signal corresponding to the second control gesture and sends a second control information to the winding motor 31. The winding motor 31 retracts the screen 33 through the cloth shaft 32. At the same time, the main control system 10 controls the projector to turn off.

[0034] The gesture control system 100 further includes a positioning member 40 and a light touch switch 41. The main control system 10 can control the positioning member 40, and the positioning member 40 is used to position the projection assembly 30. When the main control system 10 receives the identification signal corresponding to the first control gesture, the main control system 10 sends a command to the winding motor 31, and the winding motor 31 lowers the screen 33 through the cloth shaft 32. When the screen 33 is completely lowered, the screen 33 contacts the light touch switch 41 through the winding shell. At this time, the light touch switch 41 sends the information that the screen 33 is completely lowered to the main control system 10, and the main control system 10 sends a command to the positioning member 40, and the positioning member 40 positions the bottom end of the screen 33, thereby preventing the screen 33 from shaking during projection. When the main control system 10 receives the identification signal corresponding to the second control gesture, the main control system 10 sends an instruction to the positioning member 40, and the positioning member 40 stops working and no longer positions the curtain 33. At this time, the winding motor 31 can wind up the curtain 33 through the cloth shaft 32.

[0035] The gesture recognition component 20 is also provided with a rotating motor 25, which is connected to the infrared detection sensor 21 and is used to drive the infrared detection sensor 21 to rotate. When the reeling motor 31 lowers the screen 33 through the cloth shaft 32 so that the screen 33 is in the projection state, the main control system 10 sends a command to the rotating motor 25, and the rotating motor 25 drives the infrared detection sensor 21 to rotate to a first recognition angle, so that the infrared detection sensor 21 can recognize the gesture of the controller in the specific control area; when the reeling motor 31 reels the screen 33 through the cloth shaft 32, the main control system 10 sends a command to the rotating motor 25, and the rotating motor 25 drives the infrared detection sensor 21 to rotate to a second recognition angle, so that the infrared detection sensor 21 can recognize the gesture of the controller in the specific control area. The rotating motor 25 can adjust the scanning angle of the infrared detection sensor 21 at different heights, so that the infrared detection sensor 21 can recognize the control gesture in the specific recognition area at different heights.

[0036] The main control system 10 is provided with a wireless network receiving module 11, which is connected to an external terminal device 12 through the wireless network receiving module 11. The external terminal device 12 can control the opening and closing of the main control system 10 through corresponding control software. When the curtain 33 does not need to be rolled up or put down, the external terminal 12 can send a closing command to the main control system 10 through the wireless network receiving module 12. At this time, the main control system 10 cannot receive the recognition signal sent by the gesture recognition component 20, and the controller cannot send instructions to the gesture control system 100 through gestures, so as to avoid the gesture recognition component recognizing the gesture signal of the non-controller when it is in the working or non-working state.

[0037] like Figure 4 As shown, the present invention also discloses a projection screen 200, on which the above-mentioned gesture control system 100 is provided, and the operation of the projection screen 200 can be controlled by gestures. The projection screen 200 includes a main control system 10, a guide rail frame 50, a projection component 30 and a gesture recognition component 20, and the main control system 10 can control the projection component 30 and the gesture recognition component 20. The projection component 30 is fixed by the guide rail frame 50, and the projection component 30 can move along the guide rail frame 50. The gesture recognition component 20 is fixed on the projection component 30, and is used to send a recognized gesture signal to the main control system 10, and the projection component 30 is controlled by the main control system 10.

[0038] like Figure 5As shown, the projection assembly 30 includes a fixing rod 34, a winding bracket 35, a cloth shaft 32, a winding motor 31 and a screen 33. The top of the screen 33 is fixedly connected to the top of the guide rail frame 50 through the fixing rod 34, and the bottom of the screen 33 is fixedly connected to the cloth shaft 32. The cloth shaft 32 is located in the winding bracket 35. The top of the winding bracket 35 is provided with a telescopic hole for the screen 33 to pass through. One end of the cloth shaft 32 is fixedly connected to the winding bracket 35 through the winding motor 31, and the other end of the cloth shaft 32 is rotatably connected to the winding bracket 35. The winding motor 31 and the winding bracket 35 are fixedly arranged to prevent the winding motor 31 from rotating. The winding motor 31 drives the cloth shaft 32 to rotate in the winding bracket 35 to realize the retraction or release of the screen 33.

[0039] like Figure 6 As shown, the two sides of the guide rail frame 50 are respectively provided with slide rails 51, and the two ends of the winding bracket 35 extend into the slide rails 51 respectively, and can move in the vertical direction along the slide rails 51. When the winding motor 31 winds up the screen 33 through the cloth shaft 32, the winding bracket 35 can move upward along the slide rails 51; when the winding motor 31 lowers the screen 33 through the cloth shaft 32, the winding bracket 35 can move downward along the slide rails 51. In this embodiment, the slide rails 51 can position the winding bracket 35 to prevent the screen 33 from shaking during projection or winding.

[0040] The two ends of the winding bracket 35 are respectively provided with a buffer groove 351, the two buffer grooves 351 are symmetrically arranged, and the ends of the buffer grooves 351 are provided with corresponding openings. The buffer grooves 351 are provided with a buffer spring 352, a push plate 353 and a positioning ball 354. One end of the buffer spring 352 is fixedly connected to the buffer groove 351, and the other end is fixedly connected to the push plate 353. The push plate 353 can apply a corresponding elastic force to the positioning ball 354, so that part of the positioning ball 354 is pushed out of the buffer groove 351 through the opening. The push plate 353 is provided with a groove at one end close to the positioning ball 354, and the positioning ball 354 can rotate relative to the push plate 353 through the groove. The interior of the slide rail 51 is provided with an arc guide rail 52, and the part of the positioning ball 354 extending out of the buffer groove 351 extends into the arc guide rail 52, and can move in the vertical direction along the arc guide rail 52. The positioning ball 354 abuts against the arc guide rail 52 under the action of the buffer spring 352, which can prevent the winding bracket 35 from shaking left and right. When the positioning ball 354 moves along the arc guide rail 52 in the vertical direction, the positioning ball 354 can rotate, thereby facilitating the retraction and extension of the curtain 33.

[0041] The guide rail frame 50 is provided with a positioning member 40 . When the screen 33 is in the projection state, the positioning member 40 can position the winding bracket 35 through the positioning ball 354 , so that the winding bracket 35 is stably arranged at a corresponding position at the bottom of the guide rail frame 50 .

[0042] In this embodiment, the positioning member 40 is an electromagnet, the positioning ball 354 is an iron ball, and the guide rail frame 50 is provided with a positioning hole connecting the arc guide rail 52 and the electromagnet. When the winding motor 31 lowers the screen 33 through the cloth shaft 32, the winding bracket 35 moves to the corresponding position. At this time, the electromagnet adsorbs the positioning ball 354, so that the positioning ball 354 partially extends into the positioning hole. The electromagnet is provided with an adsorption groove 42, which can adsorb part of the positioning ball 354 into the adsorption groove 42, and position the positioning ball 354, thereby fixing the winding bracket 35 in the projection position to prevent the screen 33 from shaking. When the screen 33 needs to be rolled up, the electromagnet stops working, and the winding motor 31 can roll up the screen 33 through the cloth shaft 32.

[0043] The gesture recognition component 20 includes a recognition housing 26, a rotating motor 25, and an infrared detection sensor 21. The recognition housing 26 is fixedly connected to the bottom surface of the winding bracket 35. A rotating shaft 211 is provided at one end of the infrared detection sensor 21. A rotating shaft 261 hole matching the rotating shaft 211 is provided in the recognition housing 26. The rotating shaft 211 extends into the rotating shaft hole 261 and can rotate relative to the rotating shaft hole 261. The other end of the infrared detection sensor 21 extends out of the recognition housing 26 through the adjustment hole 262 to recognize the gesture information of the controller. When the rotating shaft 211 rotates in the rotating shaft hole 261, the recognition angle of the infrared detection sensor 21 can be adjusted. The rotating motor 25 is fixed on the recognition housing 26. One end of the rotating motor 25 is fixedly connected to one end of the rotating shaft 211, and can drive the rotating shaft 211 to rotate in the rotating shaft hole 261 to adjust the recognition angle of the infrared detection sensor 21.

[0044] In this embodiment, when the screen 33 is in the projection state, the rotating motor 25 adjusts the infrared detection sensor 21 to a first recognition angle through the rotating shaft 211 under the control of the main control system 10, and the infrared detection sensor 21 can recognize the gesture of the controller in the specific recognition area; when the projection is completed and the screen 33 is rolled up, the rotating motor 25 adjusts the infrared detection sensor 21 to a second recognition angle through the rotating shaft 211 under the control of the main control system 10, so that the infrared detection sensor 21 can recognize the gesture of the controller in the specific recognition area. The setting of the rotating motor 25 enables the infrared detection sensor 21 to recognize the control gesture in the specific recognition area at different heights.

[0045] In this embodiment, the infrared detection sensor 21 may also be a CCD recognition camera, which recognizes the control gesture in a specific recognition area and controls the projection screen according to the gesture information.

[0046] The present invention can be implemented in various forms and modifications without departing from the broad spirit and scope of the present invention. The above-described embodiments are intended to illustrate the invention, but are not intended to limit the scope of the present invention.

Claims

1. A projection screen gesture control system, characterized in that: The gesture control system is applied to a projection screen, which includes a projection assembly and a guide rail frame, and the projection assembly includes a winding motor, a cloth shaft, a screen and a projector; The projection assembly is fixed by the guide rail frame and can move relative to the guide rail frame; the projection assembly includes a fixing rod, a winding bracket, a cloth shaft, a winding motor and a screen, the top of the screen is fixedly connected to the guide rail frame through the fixing rod, the bottom of the screen is fixedly connected to the cloth shaft, the cloth shaft is arranged in the winding bracket, one end of the cloth shaft is fixedly connected to the winding bracket through the winding motor, and the other end is rotatably connected to the winding bracket, and the winding motor can drive the cloth shaft to rotate in the winding bracket; The gesture control system comprises: The main control system is connected to the terminal device through the wireless network receiving module, and controls the opening and closing of the main control system through the terminal device; the main control system sends control information to the winding motor, and the winding motor retracts and releases the screen through the cloth shaft, and the main control system controls the opening and closing of the projector; A gesture recognition component includes an infrared detection sensor, an infrared image forming module, a picture processing module, a signal conversion module and a transmission port. The infrared detection sensor is used to obtain gesture information within a recognition area and transmit the acquired gesture information to the infrared image forming module. The infrared image forming module performs image forming on the information scanned by the infrared detection sensor, and the picture processing module analyzes and judges the formed image. The judgment result is then transmitted to the signal conversion module. The signal conversion module converts the image information into an electrical signal, and the electrical signal is sent to the main control system through the transmission port. The gesture recognition component is fixed on the projection component.

2. A projection screen gesture control system as claimed in claim 1, characterized in that: It also includes a positioning member. When the gesture recognition component sends information for rolling up the curtain to the main control system, the main control system controls the positioning member to close, and then the rolling motor rolls up the curtain through the cloth shaft.

3. A projection screen gesture control system as claimed in claim 2, characterized in that: It also includes a touch switch. When the curtain touches the touch switch, the touch switch sends an instruction to the main control system, and the main control system controls the positioning member to open and position the curtain.

4. A projection screen gesture control system as claimed in claim 3, characterized in that: The gesture recognition component also includes a rotating motor, which is connected to the infrared detection sensor. The main control system controls the projection component to retract or extend the screen according to the information transmitted by the gesture recognition component, and also controls the rotating motor to adjust the infrared detection sensor to the first recognition angle or the second recognition angle.

5. A projection screen, characterized in that: The gesture control system comprises the gesture control system according to any one of claims 1 to 4, wherein the projection screen also comprises a guide rail frame, the projection component is fixed by the guide rail frame and can move relative to the guide rail frame, and the gesture recognition component is fixed on the projection component; The projection assembly includes a fixed rod, a winding bracket, a cloth shaft, a winding motor and a screen. The top end of the screen is fixedly connected to the guide rail frame via the fixed rod, and the bottom end of the screen is fixedly connected to the cloth shaft. The cloth shaft is arranged in the winding bracket, one end of which is fixedly connected to the winding bracket via the winding motor, and the other end is rotatably connected to the winding bracket. The winding motor can drive the cloth shaft to rotate in the winding bracket.

6. A projection screen as claimed in claim 5, characterized in that: Slide rails are respectively arranged on both sides of the guide rail frame, and both ends of the winding bracket extend into the slide rails respectively and can move in the vertical direction along the slide rails.

7. A projection screen as claimed in claim 6, characterized in that: Buffer grooves are respectively provided at both ends of the winding bracket, and buffer springs, push plates and positioning balls are provided in the buffer grooves. The buffer spring can push the positioning ball part to extend out of the buffer groove through the push plate, and the positioning ball can rotate relative to the push plate. An arc guide rail is provided in the slide rail, and the positioning ball part extends into the arc guide rail and moves in the vertical direction along the arc guide rail.

8. A projection screen as claimed in claim 7, characterized in that: The guide rail frame is provided with a positioning piece, which is an electromagnet. The electromagnet is connected to the arc guide rail through a positioning hole. The electromagnet adsorbs the positioning ball through the positioning hole. The electromagnet is provided with an adsorption groove that cooperates with the positioning ball.

9. A projection screen as claimed in claim 8, characterized in that: The gesture recognition component includes an identification shell, a rotating motor and an infrared detection sensor. The identification shell is fixedly connected to the bottom surface of the winding bracket. One end of the infrared detection sensor extends into the identification shell through a rotating shaft and is rotatably connected to the identification shell. The rotating motor is fixed in the identification shell and can drive the infrared detection sensor to rotate relative to the identification shell through the rotating shaft.

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