Intelligent touch interaction box

Abstract

The invention discloses an intelligent touch control interaction box, and relates to the technical field of intelligent interaction equipment, the intelligent touch control interaction box comprises a touch control box and a processing module in the touch control box, the side wall of the touch control box is provided with a wire harness connection module used for externally connecting display equipment, and the front side is provided with a visual identification module and an infrared identification module used for capturing touch control signals; a laser ranging module is arranged on the upper side and used for measuring the installation distance, a horizontal detection module is arranged on the lower side and used for calibrating the installation angle, and a brightness detection module and an infrared emission mechanism are arranged on the side wall to ensure that the infrared film evenly covers a display picture. The infrared laser film can be constructed in the display area, real-time identification and coordinate analysis are carried out on infrared light spots triggered by a touch pen or a finger, accurate point location collection without physical contact is achieved, and the method has the advantages of being high in practicability and capable of carrying out lossless touch upgrading on traditional display equipment.

Description

Technical Field

[0001] This invention relates to the field of intelligent interactive device technology, specifically to an intelligent touch interactive box. Background Technology

[0002] With the development of information technology, display terminal devices such as televisions, monitors, projectors and LED screens are widely used in education, corporate meetings and advertising. However, most traditional display devices only have one-way information output function and cannot support direct human-computer interaction. They lack touch input capability, and users need to rely on external devices such as remote control, mouse and keyboard to operate them, which is not only inefficient, but also difficult to meet the needs of interactive display and intelligent control.

[0003] Currently, although there are some upgrade solutions on the market that "touch-enable" ordinary display devices, such as external touch screen frames, capacitive films, and laser pointer kits, the following problems still exist:

[0004] Firstly, some solutions have high requirements for the equipment installation environment, requiring precise alignment or pre-application of the touch layer, which makes them more difficult to use.

[0005] Secondly, some touch technologies, such as capacitive and electromagnetic touch, have problems such as high cost, difficulty in adapting to screen size, and limitations due to display materials.

[0006] Third, existing infrared recognition solutions are susceptible to light interference and reflection in complex environments, resulting in defects such as accidental touches, delays, and inaccurate recognition, making it difficult to provide a stable and reliable interactive experience;

[0007] Fourth, some devices lack environmental adaptability and cannot automatically calibrate according to screen type, installation distance, or angle, resulting in insufficient deployment flexibility.

[0008] Therefore, there is an urgent need for an intelligent control and interaction device that is compact, has high recognition accuracy, strong environmental adaptability, and is widely compatible with various display terminals. This device should be able to achieve low-cost, non-destructive touch-based upgrades and have a good interactive experience and stability, in order to solve the above-mentioned problems in existing technologies. Summary of the Invention

[0009] The purpose of this invention is to provide an intelligent touch-interactive box to solve the problems mentioned in the background art.

[0010] To solve the above-mentioned technical problems, the present invention provides the following technical solution: The intelligent touch interactive box of the present invention includes a touch box and a processing module inside it, and a wire harness connection module is provided on the side wall of the touch box for connecting an external display device;

[0011] The front side is equipped with a visual recognition module and an infrared recognition module, which are used to capture touch signals;

[0012] A laser ranging module is installed on the upper side for measuring the installation distance;

[0013] A horizontal detection module is located on the lower side for calibrating the installation angle;

[0014] The side wall is equipped with a brightness detection module and an infrared emitting mechanism for dynamically adjusting infrared laser parameters.

[0015] The infrared emitting mechanism includes an angle-encoding differential, a motor, a connecting block, and an infrared laser emitting module, which can automatically adjust the laser emission angle to ensure that the infrared film uniformly covers the display screen.

[0016] According to the above technical solution, the brightness detection module is an ambient light sensor, which is used to monitor the screen brightness, background light intensity and infrared interference source intensity in real time, and dynamically adjust the power of the infrared laser emitting module and the exposure parameters of the acquisition component through the processing module.

[0017] According to the above technical solution, the horizontal detection module includes an inertial measurement unit for sensing the installation angle of the touch box, and automatically adjusting the angle of the infrared laser emitting module through a motor-driven angle encoding differential to keep it parallel to the display screen.

[0018] According to the above technical solution, the infrared recognition module distinguishes between stylus and finger click operations by analyzing the shape characteristics, light intensity distribution and diameter change rate of the light spot, and assigns different operation permissions or interaction logic.

[0019] According to the above technical solution, the visual recognition module continuously samples infrared images within the interactive area to construct time-series data. It then uses the inter-frame difference method to identify and block static infrared interference, thereby improving the accuracy of touch recognition.

[0020] According to the above technical solution, the laser ranging module and the horizontal detection module work together to calculate and adjust the coverage of the infrared laser emitting module based on the measured installation distance and angle data, so as to ensure that the laser film uniformly covers the entire display screen.

[0021] According to the above technical solution, the infrared laser emitting module has a coverage angle of 180 degrees, which can form a uniform infrared laser film on the display screen and support finger touch operation.

[0022] According to the above technical solution, the processing module adopts a differentiated response strategy based on the different characteristics of stylus and finger operations, including:

[0023] The stylus operation uses a high-precision 120Hz sampling mode and enables an anti-shake algorithm;

[0024] A 100ms delay is added to the click detection for finger operations, and trajectory smoothing filtering is applied.

[0025] According to the above technical solution, the touch box connects to an external display device via the HDMI interface of the wiring harness connection module, supporting the touch and intelligent upgrades of TVs, projectors, monitors and LED screens.

[0026] Compared with existing technologies, the beneficial effects achieved by this invention are as follows: By incorporating an infrared recognition module, a visual recognition module, and an infrared emitting mechanism, this invention can construct an infrared laser film within the display area and perform real-time recognition and coordinate analysis of infrared light spots triggered by a stylus or finger, achieving precise point acquisition without physical contact; through the processing module's analysis and judgment of the spot feature parameters, and combined with a coordinate fitting algorithm to complete the precise conversion of display coordinates, it can transform user interactions such as clicking, swiping, and writing into processing module-level operation commands, thereby realizing the intelligent and touch-enabled upgrade of ordinary display devices.

[0027] By incorporating a processing module and combining sampling data from visual and infrared recognition modules, the system can distinguish between stylus and finger operations based on multi-dimensional features such as spot diameter, movement speed, and light intensity gradient. For different operation types, the processing module employs strategies such as high-frequency sampling, trajectory prediction, click delay, and Kalman filtering to provide differentiated responses, thereby significantly improving the system's interaction accuracy and user experience during high-speed writing and natural gliding.

[0028] By incorporating a brightness detection module and a visual recognition module, and combining time frame sequence analysis and background difference algorithms from the processing module, the system can effectively identify static infrared light spots that remain unchanged for extended periods in the display screen, determine them as interference, and automatically shield them. This avoids misjudging non-interactive light sources such as LED dead pixels and glass reflections as click events. Simultaneously, the processing module can dynamically adjust the laser power and exposure parameters based on the ambient infrared intensity, thereby enhancing its adaptability and anti-interference performance in complex lighting environments.

[0029] Equipped with a horizontal detection module, a laser ranging module, and an infrared emitting mechanism, the system can perceive the installation angle of the touch box and its distance from the display surface in real time. When an offset is detected, the processing module can automatically adjust the laser emission angle and dynamically correct the touch coordinates using an affine transformation algorithm, effectively solving the recognition offset problem caused by installation errors. In addition, the processing module can also adjust the laser divergence angle and power according to the distance to adapt to different display sizes and human eye safety requirements, making it suitable for various display structures such as flat and curved surfaces. Attached Figure Description

[0030] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0031] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0032] Figure 2 This is a schematic diagram of the lower structure of the touch box of the present invention;

[0033] Figure 3 This is a schematic diagram of the front structure of the touch box of the present invention;

[0034] Figure 4 This is a schematic diagram of the right side structure of the touch box of the present invention;

[0035] Figure 5 This is a schematic diagram of the process of this invention;

[0036] In the diagram: 1 Projector body, 2 Base, 3 Touch box, 4 Wiring harness connection module, 5 Visual recognition module, 6 Infrared recognition module, 7 Laser rangefinder module, 8 Horizontal detection module, 9 Infrared emitting mechanism, 10 Brightness detection module, 901 Angle encoding differential, 902 Motor, 903 Connecting block, 904 Infrared laser emitting module. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1:

[0039] Please see Figure 1-4 The present invention provides a technical solution: the intelligent touch interactive box of the present invention includes a touch box 3 and its internal processing module, and a wire harness connection module 4 is provided on the side wall of the touch box 3 for connecting an external display device;

[0040] The front side is equipped with a visual recognition module 5 and an infrared recognition module 6, which are used to capture touch signals;

[0041] A laser ranging module 7 is provided on the upper side for measuring the installation distance;

[0042] A horizontal detection module 8 is provided on the lower side for calibrating the installation angle;

[0043] The side wall is equipped with a brightness detection module 10 and an infrared emitting mechanism 9, which are used to dynamically adjust the infrared laser parameters.

[0044] The infrared emitting mechanism 9 includes an angle encoding differential 901, a motor 902, a connecting block 903, and an infrared laser emitting module 904, which can automatically adjust the laser emission angle to ensure that the infrared film uniformly covers the display screen.

[0045] The brightness detection module 10 is an ambient light sensor used to monitor screen brightness, background light intensity and infrared interference source intensity in real time, and dynamically adjusts the power of the infrared laser emitting module and the exposure parameters of the acquisition component through the processing module.

[0046] The horizontal detection module 8 includes an inertial measurement unit for sensing the installation angle of the touch box 3, and automatically adjusting the angle of the infrared laser emitting module 904 by driving the angle encoding differential 901 through the motor 902 to keep it parallel to the display screen.

[0047] The infrared recognition module 6 distinguishes between stylus and finger click operations by analyzing the shape characteristics, light intensity distribution and diameter change rate of the light spot, and assigns different operation permissions or interaction logic.

[0048] The visual recognition module 5 continuously samples infrared images within the interactive area to construct time-series data. It then uses the inter-frame difference method to identify and block static infrared interference, thereby improving the accuracy of touch recognition.

[0049] The laser ranging module 7 and the horizontal detection module 8 work together to calculate and adjust the coverage of the infrared laser emitting module 904 based on the measured installation distance and angle data, ensuring that the laser film uniformly covers the entire display screen.

[0050] The infrared laser emitting module 904 has a coverage angle of 180 degrees, which can form a uniform infrared laser film on the display screen and support finger touch operation.

[0051] The processing module adopts differentiated response strategies based on the different characteristics of stylus and finger operations, including: using a high-precision 120Hz sampling mode and enabling anti-shake algorithm for stylus operations, and adding a 100ms click delay for finger operations and using trajectory smoothing filtering.

[0052] The touch box 3 connects to the HDMI interface of the module 4 via a wiring harness to connect to external display devices, supporting touch and intelligent upgrades for TVs, projectors, monitors and LED screens;

[0053] In practical applications, this device can be flexibly adapted to various display device scenarios. Taking a projector as an example, the user only needs to install the touch box 3 on the top of the projector or in a suitable position in front of the screen, connect the touch box to the projector interface via an HDMI cable, and the processing module will start after power is turned on. Through the infrared recognition module 6 and the visual recognition module 5 set in front of the touch box 3, the infrared light spot image information in the display area is collected in real time. The infrared laser emitting module 904 in the infrared emitting mechanism 9 projects an invisible infrared laser film onto the display area. When the user taps the screen with a finger, laser pointer, or infrared stylus, the local laser will be blocked, and an infrared reaction light spot will be generated at the corresponding position. Module 5 captures and locates the light spot image, enabling point-to-point perception without physical touch. The processing module analyzes the characteristics of the light spot, such as size, brightness, and movement speed, to determine the type of user action and can automatically distinguish between laser pointer and finger operations. The identified light spot image is processed by geometric correction and coordinate fitting algorithms and converted into standard screen coordinates at the corresponding resolution of the display device, ensuring that the operation action accurately corresponds to the actual screen position on different display terminals. The processing module generates input signals at the processing module level based on the recognition results, such as click, drag, slide, and write, and transmits them to the Android main control processing module, which executes the corresponding interface response to realize real interaction on the screen.

[0054] Example 2:

[0055] Please see Figure 1-4 The present invention provides a technical solution: This embodiment focuses on the processing module's ability to suppress environmental interference. For common static interference sources, such as dead pixels on LED screens or fixed reflective objects in the environment, the processing module adopts a spatiotemporal dual filtering mechanism. In the time dimension, the visual recognition module 5 continuously analyzes 10 frames of infrared image sequence and marks persistent static light spots as interference sources. In the spatial dimension, through the background difference algorithm, the processing module only responds to dynamic areas where the light intensity change exceeds 15%. For ambient light interference, the brightness detection module 10 monitors the infrared light intensity in the 400-1000nm band in real time. When strong infrared interference is detected, such as direct sunlight, the processing module automatically increases the laser emission power and shortens the exposure time of the acquisition component, effectively avoiding image overexposure.

[0056] Example 3:

[0057] Please see Figure 1-4 The present invention provides a technical solution: the processing module distinguishes between stylus and finger operation through multiple feature parameters: the light spot diameter formed by stylus is usually 2-3mm, the moving speed exceeds 50cm / s, and the light intensity change gradient is relatively steep; while the light spot diameter formed by finger operation can reach 10-15mm, the moving speed is less than 20cm / s, and the light intensity change is relatively gentle.

[0058] For stylus operation, the processing module enables a high sampling rate mode of 120Hz and uses a coordinate prediction algorithm to compensate for the delay caused by high-speed movement. For finger operation, the processing module adds a 100ms click delay to avoid accidental touches and uses a Kalman filter algorithm to smooth the sliding trajectory. This differentiated response strategy ensures that all types of touch operations can obtain the best user experience.

[0059] Example 4:

[0060] Please see Figure 1-4 The present invention provides the following technical solution: The horizontal detection module 8 has a built-in high-precision IMU sensor, which can monitor the installation angle of the device in real time with an accuracy of 0.1°. When the detected tilt exceeds 3°, the processing module will drive the motor 902 to adjust the angle of the infrared laser emission module 904 through the angle encoding differential 901. The infrared laser emission angle is adjusted, and the touch coordinates are corrected in real time through an affine transformation algorithm. The laser ranging module 7 adopts the time-of-flight (TOF) principle to measure the distance between the device and the display screen with an accuracy of ±1cm. According to the measurement results, the processing module will dynamically adjust the laser divergence angle: when the distance exceeds 2 meters, the divergence angle increases to 20°; when the distance is less than 0.5 meters, the power will be automatically reduced to avoid the risk of direct viewing. For curved screens, the processing module will collect multiple sets of reference point coordinates during the calibration stage and establish a three-dimensional mapping model through a B-spline surface fitting algorithm to ensure that the touch operation can be accurately mapped to the display screen.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0062] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A smart touch-interactive box, comprising a touch box (3) and a processing module therein, characterized in that: The touch box (3) is provided with a wire harness connection module (4) on its side wall, a visual recognition module (5) and an infrared recognition module (6) on its front side, a laser ranging module (7) on its upper side, a horizontal detection module (8) on its lower side, and a brightness detection module (10) and an infrared emitting mechanism (9) on its side wall. The infrared emitting mechanism (9) includes an angle-encoded differential (901), a motor (902), a connecting block (903), and an infrared laser emitting module (904), which is used to dynamically adjust the infrared laser emitting angle.

2. The intelligent touch-interactive box according to claim 1, characterized in that: The brightness detection module (10) is an ambient light sensor used to monitor screen brightness, background light intensity and infrared interference source intensity in real time, and dynamically adjust the power of the infrared laser emitting module and the exposure parameters of the acquisition component through the processing module.

3. The intelligent touch-interactive box according to claim 1, characterized in that: The horizontal detection module (8) includes an inertial measurement unit for sensing the installation angle of the touch box (3) and automatically adjusting the angle of the infrared laser emitting module (904) by driving the angle encoding differential (901) through the motor (902) to keep it parallel to the display screen.

4. The intelligent touch-interactive box according to claim 1, characterized in that: The infrared recognition module (6) distinguishes between stylus and finger click operations by analyzing the shape characteristics, light intensity distribution and diameter change rate of the light spot, and assigns different operation permissions or interaction logic.

5. The intelligent touch-interactive box according to claim 1, characterized in that: The visual recognition module (5) continuously samples infrared images within the interactive area to construct time-series data. It then uses the inter-frame difference method to identify and block static infrared interference, thereby improving the accuracy of touch recognition.

6. The intelligent touch-interactive box according to claim 1, characterized in that: The laser ranging module (7) works in conjunction with the horizontal detection module (8) to calculate and adjust the coverage of the infrared laser emitting module (904) based on the measured installation distance and angle data, so as to ensure that the laser film uniformly covers the entire display screen.

7. The intelligent touch-interactive box according to claim 1, characterized in that: The infrared laser emitting module (904) has a coverage angle of 180 degrees, which can form a uniform infrared laser film on the display screen and support finger touch operation.

8. The intelligent touch interaction box according to claim 4, characterized in that: The processing module employs differentiated response strategies based on the different characteristics of stylus and finger operations, including: The stylus operation uses a high-precision 120Hz sampling mode and enables an anti-shake algorithm; A 100ms delay is added to the click detection for finger operations, and trajectory smoothing filtering is applied.

9. The intelligent touch-interactive box according to claim 5, characterized in that: The touch box (3) is connected to an external display device via the HDMI interface of the wiring harness connection module (4), supporting the touch and intelligent upgrade of TVs, projectors, monitors and LED screens.

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