Intelligent touch projection processing system and electronic equipment

Abstract

The invention relates to the technical field of projection systems, in particular to an intelligent touch projection processing system and electronic device.The intelligent touch projection processing system comprises a touch projection module, a real-time touch item analysis module and an invalid signal filtering module, debugging a lens mode and a specific display area according to the signal characteristics; the signal features are classified according to the generation direction of the signal features, a digital structure value used for correcting the response features or the jitter features is calculated through a response threshold value correction unit or an anti-jitter coefficient correction unit, and a comparison value for performing accuracy verification with normal response data and normal jitter data is set according to the digital structure value. According to comparison value parameters of the classified corresponding features and conventional parameter difference parameters, independent correction of sub-item data is carried out, then invalid feature signals can be effectively classified, an accurate touch command is output, and the anti-interference performance of touch during use of the intelligent touch projection is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of projection systems, and more specifically to an intelligent touch projection processing system and an electronic device. Background Art

[0002] Intelligent touch projection is a composite human-computer interaction system that integrates optical projection, touch interaction, and artificial intelligence technologies. It projects a digital interface onto any plane such as a wall, a tabletop, or a floor through a high-precision projection device. When an intelligent touch projection device performs a touch operation, it needs to capture touch features, such as time-domain and frequency-domain features, for example, time-domain features such as moving speed, acceleration, and pressure change rate, or frequency-domain features obtained through Fourier transform. And instant features generated by direction, curvature, and jitter degree. Existing technical means obtain the values generated by the above factors through a set sensing structure and make a judgment based on the generated values. However, due to the variability of touch determination, multiple sets of data are required for comprehensive discrimination. This processing method is prone to multi-group signal feature errors due to the deviation of feature performance during touch, so the error value cannot be quickly verified, and false signals are easily generated during actual determination, so the accuracy is not good. Summary of the Invention

[0003] Aiming at the problems in the prior art, the present invention provides an intelligent touch projection processing system and an electronic device.

[0004] The technical solution adopted by the present invention to solve its technical problems is: an intelligent touch projection processing system and an electronic device, including a touch projection module, a real-time touch item analysis module, and an invalid signal filtering module;

[0005] The touch projection module is used to obtain a touch signal, analyze the current touch signal features, and debug the lens mode and the specific display area according to the signal features;

[0006] The real-time touch item analysis module is used to extract the signal features obtained by the touch projection module, classify the signal features according to the generation direction of the signal features, and finally correct the sub-item data according to the corresponding feature body parameters after classification; wherein, the signal features include response features and jitter features;

[0007] The invalid signal filtering module is used to pre-enter the invalid signal parameter range, and then compare the corrected sub-item data, filter out the invalid feature signals, and finally output an accurate touch command.

[0008] Preferably, the real-time touch item analysis module includes a signal feature extraction unit, a signal feature classification unit, a response threshold correction unit, an anti-shake coefficient correction unit, and a correction value output unit. The signal feature extraction unit is signal-connected to the signal feature classification unit. The signal feature classification unit is signal-connected to the response threshold correction unit and the anti-shake coefficient correction unit. The response threshold correction unit and the anti-shake coefficient correction unit are signal-connected to the correction value output unit.

[0009] Preferably, the response features extracted by the signal feature extraction unit include contact duration, time interval, trigger moment, contact pressure value, contact pressure change rate, and pressure value variance. The jitter features extracted by the signal feature extraction unit include contact instantaneous velocity, acceleration, motion direction, and trajectory curvature.

[0010] Preferably, the steps for the response threshold correction unit to calculate the digital construction value for correcting the response features are as follows:

[0011] Step a: Set the currently obtained response features as contact duration S1, time interval S2, trigger moment S3, contact pressure value S4, contact pressure change rate S5, and pressure value variance S6.

[0012] Step b: Read the interval parameters of the frequently triggered response features and perform data processing to obtain the normal trigger parameter interval of the response features, and set it as contact duration interval N1, time interval interval N2, trigger moment interval N3, contact pressure value interval N4, contact pressure change rate interval N5, and pressure value variance interval N6.

[0013] Step c: Substitute the above parameters into the following formula to obtain the digital construction value Z, including and

[0014] Preferably, the steps for the response threshold correction unit to calculate the response comparison value for correcting the response features are as follows:

[0015] Step a: Obtain its corresponding dynamic ratio according to the Nn max -Nb max interval to obtain its corresponding dynamic ratio

[0016] Step b: Substitute the above values into the above response digital construction value Z to obtain the specific response comparison value R:

[0017] That is

[0018] Preferably, the steps for the anti-shake coefficient correction unit to calculate the digital construction value for correcting the jitter features are as follows:

[0019] Step a: Set the currently obtained jitter features as the instantaneous contact velocity T1, acceleration T2, motion direction T3, and trajectory curvature T4;

[0020] Step b: Read the interval parameters of the frequently triggered jitter features and perform data processing to obtain the normal trigger parameter intervals of the jitter features, the instantaneous contact velocity interval M1, acceleration interval M2, motion direction interval M3, and trajectory curvature interval M4;

[0021] Step c: Substitute the above parameters into the following formula to obtain the jitter digital construct value X, including and

[0022] Preferably, the jitter threshold correction unit calculates the jitter comparison value for correcting the jitter features as follows:

[0023] Step a: Obtain the corresponding dynamic ratio according to the Mn max -Mn max interval to obtain its corresponding dynamic ratio

[0024] Step b: Substitute the above values into the above response digital construct value X to obtain the specific jitter comparison value E:

[0025] That is

[0026] Step c: Weight the obtained jitter comparison values and substitute them into the following formula to obtain the final comprehensive response comparison value:

[0027] Preferably, an intelligent touch projection processing electronic device includes a dual-mode lens assembly, a communication module, a touch panel, and an intermediate processing module:

[0028] The touch panel is used to switch the application mode of the dual-mode lens assembly.

[0029] The dual-mode lens assembly integrates a short-focus / vertical projection dual-lens, a laser, and an infrared camera. Among them, the laser and the infrared camera are used to improve the planar touch accuracy of the touch panel.

[0030] The communication module is used for the transmission of intermediate touch signals. The signal sending ends of the laser and the infrared camera are connected to the touch panel through the communication module, and the signal sending end of the touch panel is connected to the short-focus / vertical projection dual-lens through the communication module.

[0031] The intermediate processing module is used to process the intermediate signal parameters generated by the touch panel and upload the intermediate signal parameters to the system side.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting up a real-time touch item analysis module to extract the signal characteristics obtained by the touch projection module, classifying the signal characteristics according to the generation direction of the signal characteristics, calculating digital construction values for correcting response characteristics or jitter characteristics through a response threshold correction unit or a anti-shake coefficient correction unit, setting a comparison value for accuracy verification between the digital construction value and normal response data and normal jitter data, and independently correcting sub-item data according to the difference parameter between the comparison value parameter of the corresponding classified feature and the conventional parameter, it is possible to effectively filter out invalid feature signals, output accurate touch commands, and effectively improve the anti-interference performance of touch during the use of intelligent touch projection. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below with reference to the drawings and embodiments.

[0034] Figure 1 It is a composition diagram of a real-time touch item analysis module in an intelligent touch projection processing system of the present invention;

[0035] Figure 2 It is a structural schematic diagram of an intelligent touch projection processing electronic device of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0037] Embodiment

[0038] As Figure 1 - Figure 2 shown, an intelligent touch projection processing system and an electronic device according to the present invention include a touch projection module, a real-time touch item analysis module, and an invalid signal filtering module;

[0039] The touch projection module is used to obtain touch signals, analyze the current touch signal characteristics, and debug the lens mode and specific display area according to the signal characteristics;

[0040] The real-time touch item analysis module is used to extract the signal characteristics obtained by the touch projection module, classify the signal characteristics according to the generation direction of the signal characteristics, and finally correct the sub-item data according to the corresponding feature body parameters after classification; among them, the signal characteristics include response characteristics and jitter characteristics;

[0041] The invalid signal filtering module is used to pre-enter the invalid signal parameter range, and then compare the corrected sub-item data, filter out invalid feature signals, and finally output accurate touch commands.

[0042] In this embodiment, to solve the problem that when the prior art means obtains the generated value of the above factors by setting a sensing structure and makes a determination based on the generated value, due to the variability of touch determination, multiple sets of data are required for comprehensive determination, and it is easy to cause errors in the signal characteristics of multiple sets due to the deviation of feature representation. Therefore, the error value cannot be quickly verified, and false signals are likely to be generated during actual determination, resulting in poor accuracy. The present invention proposes an intelligent touch projection processing system and an electronic device, which are provided with a touch projection module, a real-time touch item analysis module, and an invalid signal filtering module. The real-time touch item analysis module extracts the signal characteristics obtained by the touch projection module, classifies the signal characteristics according to the generation direction of the signal characteristics, and calculates a digital construction value for correcting the response characteristics or jitter characteristics through a response threshold correction unit or a jitter coefficient correction unit. A comparison value for accuracy verification is set between the digital construction value and the normal response data and normal jitter data. Independent correction of sub-item data is performed according to the difference parameter between the comparison value parameter of the corresponding feature after classification and the conventional parameter, so as to effectively filter out invalid feature signals and solve the above technical problems.

[0043] In an alternative embodiment of this embodiment, the real-time touch item analysis module includes a signal feature extraction unit, a signal feature classification unit, a response threshold correction unit, a jitter coefficient correction unit, and a correction value output unit. The signal feature extraction unit is signal-connected to the signal feature classification unit, the signal feature classification unit is signal-connected to the response threshold correction unit and the jitter coefficient correction unit, and the response threshold correction unit and the jitter coefficient correction unit are signal-connected to the correction value output unit.

[0044] In an alternative embodiment of this embodiment, the response characteristics extracted by the signal feature extraction unit include contact duration, time interval, trigger moment, contact pressure value, contact pressure change rate, and pressure value variance. The jitter characteristics extracted by the signal feature extraction unit include contact instantaneous velocity, acceleration, movement direction, and trajectory curvature.

[0045] In this embodiment, the contact duration is the time difference from the start to the end of the touch pressure signal received by the touch projection module. Among them, a short touch (<50 ms) can be set as a false touch. The time difference between consecutive touch events is the time difference generated by the touch projection module receiving the signal, used to identify high-frequency abnormal clicks. The trigger moment is the absolute timestamp of the touch occurrence, used to cooperate with the device state judgment.

[0046] In this embodiment, the contact pressure value is the contact pressure intensity detected by the capacitive screen, the contact pressure change rate is the pressure change amount per unit time, and the pressure value variance is obtained from the pressure mutation caused by false touch.

[0047] In an alternative embodiment of this embodiment, the steps for the response threshold correction unit to calculate the digital construction value for correcting the response feature are as follows:

[0048] Step a: Set the currently obtained response feature as the contact duration S1, time interval S2, trigger moment S3, contact pressure value S4, contact pressure change rate S5, and pressure value variance S6;

[0049] Step b: Read the interval parameters of the frequently triggered response feature and perform data processing to obtain the normal trigger parameter interval of the response feature, and set it as the contact duration interval N1, time interval interval N2, trigger moment interval N3, contact pressure value interval N4, contact pressure change rate interval N5, and pressure value variance interval N6;

[0050] Step c: Substitute the above parameters into the following formula to obtain the digital construction value Z, including and

[0051] In an alternative embodiment of this embodiment, the steps for the response threshold correction unit to calculate the response comparison value for correcting the response feature are as follows:

[0052] Step a: According to Nn max -Nn max interval to obtain its corresponding dynamic proportion

[0053] Step b: Substitute the above values into the above response digital construction value Z to obtain the specific response comparison value R:

[0054] That is

[0055] After obtaining the comprehensive response comparison value, analyze whether it exceeds the false touch limit (±2) by comparing with the conventional data comparison value set in the original database. When it exceeds or is lower than the conventional data value, it is determined as a response false touch signal.

[0056] In an alternative embodiment of this embodiment, the steps for the anti-shake coefficient correction unit to calculate the digital construction value for correcting the jitter feature are as follows:

[0057] Step a: Set the currently obtained jitter feature as the contact instantaneous velocity T1, acceleration T2, motion direction T3, and trajectory curvature T4;

[0058] Step b: Read the interval parameters of the frequently triggered jitter feature and perform data processing to obtain the normal trigger parameter interval of the jitter feature, the contact instantaneous velocity interval M1, acceleration interval M2, motion direction interval M3, and trajectory curvature interval M4;

[0059] Step c: The jitter digital value X obtained by substituting the above parameters into the following formula includes and

[0060] In an alternative embodiment of this embodiment, the steps for the jitter threshold correction unit to calculate the jitter comparison value for correcting the jitter feature are as follows:

[0061] Step a: Obtain the corresponding dynamic proportion according to the Mn max -Mn max interval

[0062] Step b: Substitute the above values into the above response digital value X to obtain the specific jitter comparison value E:

[0063] That is

[0064] Step c: Perform weighted processing on the obtained jitter comparison values and substitute them into the following formula to obtain the final comprehensive response comparison value:

[0065] In this embodiment, after obtaining the comprehensive jitter comparison value, analyze whether it exceeds the mis-touch limit (±2) by comparing with the conventional data comparison value set in the original database. When it exceeds or is lower than the conventional data value, it is determined as a jitter mis-touch signal.

[0066] In an alternative embodiment of this embodiment, an intelligent touch projection processing electronic device includes a dual-mode lens assembly, a communication module, a touch panel, and an intermediate processing module.

[0067] The touch panel is used to switch the application mode of the dual-mode lens assembly.

[0068] The dual-mode lens assembly integrates a short-focus / vertical projection dual-lens, a laser, and an infrared camera. Among them, the laser and the infrared camera are used to improve the planar touch accuracy of the touch panel.

[0069] The communication module is used for the transmission of intermediate touch signals. The signal sending ends of the laser and the infrared camera are connected to the touch panel through the communication module, and the signal sending end of the touch panel is connected to the short-focus / vertical projection dual-lens through the communication module.

[0070] The intermediate processing module is used to process the intermediate signal parameters generated by the touch panel and upload the intermediate signal parameters to the system end.

[0071] The working principle of the present invention is as follows: By setting up a real-time touch item analysis module to extract the signal features obtained by the touch projection module, and classifying the signal features according to the generation direction of the signal features. Then, through the response threshold correction unit or the anti-shake coefficient correction unit, calculate the digital construction value for correcting the response feature or the jitter feature, and set the comparison value for accuracy verification between the digital construction value and the normal response data and the normal jitter data, that is, the comprehensive response comparison value and the comprehensive jitter comparison value. Then, according to the classified comprehensive response comparison value and comprehensive jitter comparison value, perform independent correction of the sub-item data with the difference parameter of the conventional system parameters. When it exceeds or is lower than the conventional data value, it is determined as a false touch signal, and the invalid feature signal is filtered out, and an accurate touch command is output, effectively improving the anti-interference performance of the touch during the use of the intelligent touch projection.

[0072] Embodiment 2

[0073] An intelligent touch projection processing system and an electronic device according to the present invention include a touch projection module, a real-time touch item analysis module, and an invalid signal filtering module;

[0074] The touch projection module is used to obtain touch signals, analyze the current touch signal features, and debug the lens mode and the specific display area according to the signal features;

[0075] The real-time touch item analysis module is used to extract the signal features obtained by the touch projection module, classify the signal features according to the generation direction of the signal features, and finally perform sub-item data correction according to the corresponding feature body parameters after classification; wherein, the signal features include response features and jitter features;

[0076] The invalid signal filtering module is used to pre-enter the invalid signal parameter range, and then compare the corrected sub-item data, filter out the invalid feature signals, and finally output an accurate touch command.

[0077] Among them, the difference from Embodiment 1 is that, without correcting the false touch data, the present invention can still complete the touch use normally. That is, by setting up a real-time touch item analysis module to extract the signal features obtained by the touch projection module, classifying the signal features according to the generation direction of the signal features, and then comparing the classified comprehensive response comparison value and comprehensive jitter comparison value with the difference parameter of the conventional system parameters. When it exceeds or is lower than the conventional data value, it is determined as a false touch signal, and the invalid feature signal is filtered out, and an accurate touch command is output, effectively improving the anti-interference performance of the touch during the use of the intelligent touch projection.

[0078] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An intelligent touch projection processing system, characterized in that: It includes a touch projection module, a real-time touch item analysis module, and an invalid signal filtering module; The touch projection module is used to obtain touch signals, analyze the current touch signal characteristics, and debug the lens mode and specific display area according to the signal characteristics; The real-time touch item analysis module is used to extract the signal characteristics obtained by the touch projection module, classify the signal characteristics according to the generation direction of the signal characteristics, and finally correct the itemized data according to the corresponding feature body parameters after classification; among them, the signal characteristics include response characteristics and jitter characteristics; The invalid signal filtering module is used to pre-enter the invalid signal parameter range, and then compare the corrected itemized data, filter out the invalid feature signals, and finally output accurate touch commands.

2. The intelligent touch projection processing system according to claim 1, wherein: The real-time touch item analysis module includes a signal feature extraction unit, a signal feature classification unit, a response threshold correction unit, an anti-shake coefficient correction unit, and a correction value output unit. The signal feature extraction unit is signal-connected to the signal feature classification unit, and the signal feature classification unit is signal-connected to the response threshold correction unit and the anti-shake coefficient correction unit. The response threshold correction unit and the anti-shake coefficient correction unit are signal-connected to the correction value output unit.

3. An intelligent touch projection processing system according to claim 2, characterized in that: The response characteristics extracted by the signal feature extraction unit include contact duration, time interval, trigger moment, contact pressure value, contact pressure change rate, and pressure value variance. The jitter characteristics extracted by the signal feature extraction unit include contact instantaneous velocity, acceleration, motion direction, and trajectory curvature.

4. An intelligent touch projection processing system according to claim 3, characterized in that: The steps for the response threshold correction unit to calculate the digital construction value for correcting the response characteristics are as follows: Step a: Set the currently obtained response characteristics as contact duration S1, time interval S2, trigger moment S3, contact pressure value S4, contact pressure change rate S5, and pressure value variance S6; Step b: Read the interval parameters of the frequently triggered response characteristics and perform data processing to obtain the normal trigger parameter range of the response characteristics, and set it as contact duration interval N1, time interval interval N2, trigger moment interval N3, contact pressure value interval N4, contact pressure change rate interval N5, and pressure value variance interval N6; Step c, substitute the above parameters into the following formula to obtain the digital value Z, including and 5. An intelligent touch projection processing system according to claim 4, characterized in that: The steps for the response threshold correction unit to calculate the response comparison value for correcting the response characteristics are as follows: Step a: Obtain the corresponding dynamic ratio according to Nn max - Nb max in the interval Step b: Substitute the above values into the above response digital construction value Z to obtain the specific response comparison value R: That is 6. An intelligent touch projection processing system according to claim 3, characterized in that: The steps for the anti-shake coefficient correction unit to calculate the digital construction value for correcting the jitter characteristics are as follows: Step a: Set the currently obtained jitter characteristics as contact instantaneous velocity T1, acceleration T2, motion direction T3, and trajectory curvature T4; Step b: Read the interval parameters of the frequently triggered jitter characteristics and perform data processing to obtain the normal trigger parameter range of the jitter characteristics, contact instantaneous velocity interval M1, acceleration interval M2, motion direction interval M3, and trajectory curvature interval M4; Step c, obtaining the jitter digital value X by substituting the above parameters into the following formula, including and 7. An intelligent touch projection processing system according to claim 6, characterized in that: The steps for the jitter threshold correction unit to calculate the jitter comparison value for correcting the jitter characteristics are as follows: Step a: Obtain the corresponding dynamic proportion according to Mn max -Mn max interval Step b: Substitute the above values into the above response digital construction value X to obtain the specific jitter comparison value E: That is Step c: Weight the obtained jitter comparison values and substitute them into the following formula to obtain the final comprehensive response comparison value:

8. An intelligent touch projection processing electronic device, applying the intelligent touch projection processing system as described in any one of claims 1-7, characterized in that: It includes a dual-mode lens module, a communication module, a touch panel, and an intermediate processing module: The touch panel is used to switch the application mode of the dual-mode lens module. The dual-mode lens module integrates a short-focus / vertical projection dual-projection lens, a laser, and an infrared camera. Among them, the laser and the infrared camera are used to improve the planar touch accuracy of the touch panel. The communication module is used for the transmission of intermediate touch signals. The signal sending ends of the laser and the infrared camera are connected to the touch panel through the communication module, and the signal sending end of the touch panel is connected to the short-focus / vertical projection dual-projection lens through the communication module. The intermediate processing module is used to process the intermediate signal parameters generated by the touch panel and upload the intermediate signal parameters to the system end.

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