CN115016664A - Display touch control method and control system based on laser radar - Google Patents
Display touch control method and control system based on laser radar Download PDFInfo
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- CN115016664A CN115016664A CN202110839451.4A CN202110839451A CN115016664A CN 115016664 A CN115016664 A CN 115016664A CN 202110839451 A CN202110839451 A CN 202110839451A CN 115016664 A CN115016664 A CN 115016664A
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- laser radar
- display screen
- lidar
- touch control
- touch
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000003993 interaction Effects 0.000 claims abstract description 23
- 230000002452 interceptive effect Effects 0.000 claims abstract description 10
- 230000004913 activation Effects 0.000 claims description 9
- 238000013475 authorization Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04162—Control or interface arrangements specially adapted for digitisers for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/043—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention relates to the technical field of G06F3, in particular to a display touch control method and a display touch control system based on a laser radar; a display touch control method based on a laser radar comprises the steps that through the mutual connection of the laser radar, a local computer and a display screen, touch control action and position are carried out in a display screen area, position information is obtained through the laser radar, the position angle and distance of the touch control action are obtained through scanning of a sensor on the laser radar, two-dimensional point cloud position information is obtained, a polar coordinate system is established, the polar coordinate system is converted into a two-dimensional XY coordinate system, the XY coordinate system is converted into an XY coordinate system with the vertex of the display screen through the relative position difference of the vertex of the display screen and the laser radar, and the touch control action is acted on the display screen area through interactive logic judgment; the technology of the invention realizes the effect of large-area projection or touch interaction display of outdoor, ground, wall and the like by butting the laser radar sensors.
Description
Technical Field
The invention relates to the technical field of G06F3, in particular to a display touch control method and a display touch control system based on a laser radar.
Background
Chinese patent with patent application number CN201910806943.6 discloses an interactive control system, which solves the problem of inconvenience in human-computer interaction of non-touch display objects, but does not solve the technical problem of realizing large-area projection or display touch interaction in the open air, on the ground, on the wall, etc.
The chinese patent with patent application number cn202010914769.x discloses a novel multi-point touch interaction system and method based on a laser radar, which solves the technical problems of poor real-time performance and slow data transmission mode of the conventional multi-point touch interaction system, but does not solve the technical problems of realizing large-area projection or display touch interaction outdoors, on the ground, on the wall, etc.
Disclosure of Invention
In order to solve the above problems, the present invention provides a display touch control method based on a lidar, comprising the steps of:
s1, after downloading and installing touch software into a local computer, opening the touch software, acquiring a local machine code, inputting an activation code, and completing software activation;
s2, connecting a laser radar, adding the laser radar into a hardware list, and controlling to start the laser radar;
s3, adding a display screen list, setting an interaction area, adding a playing material list, and playing according to the material list;
s4, through the mutual connection of the laser radar, the local computer and the display screen, touch control action and position in the display screen area are achieved, position information is obtained through the laser radar, position angles and distances of the touch control action are obtained through scanning of a sensor on the laser radar, two-dimensional point cloud position information is obtained, a polar coordinate system is established, the polar coordinate system is converted into a two-dimensional XY coordinate system, the relative position difference between the vertex of the screen and the laser radar is converted into an XY coordinate system of the vertex of the display screen, and the touch control action is acted on the display screen area through interactive logic judgment.
Preferably, the display screen list is added in the step S3 to set an interaction area, the display screen and the connected laser radar device models are in one-to-one correspondence by configuring the display screen, the point cloud data of the laser radar are obtained by starting data push of the laser radar, and the direction and the size are adjusted according to the installation direction of the laser radar.
Preferably, the scanning performed by the sensor on the laser radar in S4 is performed continuously.
Preferably, the polar coordinate system established in S4 is a polar coordinate system established with the laser radar as an origin.
Preferably, in S4, the computer converts the point cloud data obtained by the lidar sensor into a logical coordinate position of the display screen by calculating the resolution and the actual length and width distance of the display screen when the touch action is applied to the display screen area, and performs a logical judgment according to different interaction characteristics, and finally displays the touch position in the display screen area and executes the touch interaction action.
Preferably, the connection mode of S2 to the lidar includes a wired connection or a local area network connection.
Preferably, the local area network connection performs connection of multiple devices through a local area network constructed by routers.
A control system of a display touch control method based on a laser radar comprises the laser radar, a display screen, an application module and a setting module.
Preferably, the setting module includes a system setting unit, a network setting unit, a touch mode setting unit, a single-point touch setting unit, a multi-point touch setting unit, and an activation authorization setting unit.
Preferably, the application module selects the content of the played material through operations of opening, configuring and deleting.
Advantageous effects
The touch control method and the control system provided by the invention realize the interactive touch activity facing the multimedia interactive industry, and provide the control method and the control system for displaying touch.
The technology of the invention realizes the effect of large-area projection or touch interaction display of outdoor, ground, wall and the like by butting the laser radar sensors.
The technology of the invention realizes the super-large screen interaction with lower cost, supports the multi-device combined control and improves the precision of multimedia interaction.
The system of the invention provides functions of equipment control, screen configuration, material playing, system parameters and the like for the interactive large screen.
Drawings
Fig. 1 is a flowchart illustrating a touch control method according to the present invention.
Detailed Description
A display touch control method based on a laser radar comprises the following steps:
s1, after downloading and installing touch software into a local computer, opening the touch software, acquiring a local machine code, inputting an activation code, and completing software activation;
s2, connecting a laser radar, adding the laser radar into a hardware list, and controlling to start the laser radar;
s3, adding a display screen list, setting an interaction area, adding a playing material list, and playing according to the material list;
s4, through the mutual connection of the laser radar, the local computer and the display screen, touch control action and position in the display screen area are achieved, position information is obtained through the laser radar, position angles and distances of the touch control action are obtained through scanning of a sensor on the laser radar, two-dimensional point cloud position information is obtained, a polar coordinate system is established, the polar coordinate system is converted into a two-dimensional XY coordinate system, the relative position difference between the vertex of the screen and the laser radar is converted into an XY coordinate system of the vertex of the display screen, and the touch control action is acted on the display screen area through interactive logic judgment.
Fig. 1 provides a schematic flow chart of a display touch control method based on a laser radar.
In an implementation mode, the display screen list is added in the step S3, the interactive area is set by configuring the display screen, the display screen and the connected laser radar equipment model are in one-to-one correspondence, the point cloud data of the laser radar is obtained by starting the data push of the laser radar, and the direction and the size are adjusted according to the installation direction of the laser radar.
In one embodiment, the scanning performed by the sensor on the laser radar in S4 is performed continuously.
In one embodiment, the polar coordinate system established in S4 is a polar coordinate system established with the laser radar as an origin.
In one embodiment, in S4, the touch action is applied to the display screen area by calculating the resolution and the actual length and width distance of the display screen, and the computer converts the point cloud data obtained by the lidar sensor into a logical coordinate position of the display screen, and performs a logical judgment according to different interaction characteristics, and finally displays the touch position on the display screen area and executes the touch interaction action.
In one embodiment, the connection of S2 to the lidar includes a wired connection or a local area network connection.
In one embodiment, the local area network connection performs connection of multiple devices through a local area network constructed by routers.
A control system of a display touch control method based on a laser radar comprises the laser radar, a display screen, an application module and a setting module.
In one embodiment, the setting module includes a system setting unit, a network setting unit, a touch mode setting unit, a single-point touch setting unit, a multi-point touch setting unit, and an activation authorization setting unit.
In one embodiment, the application module selects the content of the played material through operations of opening, configuring and deleting.
In one embodiment, the system setting unit realizes the function of automatic start when starting up by setting the function of starting up and running the laser radar and automatically playing the material.
In one embodiment, different interaction modes under different interaction scenes are supported by setting different touch modes, including different interaction modes such as mouse click, mouse double click, long-press dragging and continuous click.
In one embodiment, the touch manner setting unit sets mouse click, mouse double click, long-press drag, and continuous click.
In one embodiment, the single-touch setting unit sets a refresh interval time and a contact interval time.
In one embodiment, the smaller the refresh interval time, the higher the refresh frequency, and the smaller the acquisition data delay.
In one embodiment, the smaller the contact interval time, the more sensitive the clicking effect is, and the clicking times are increased, so that the method is suitable for quick clicking operation.
In one embodiment, the multi-touch setting unit includes setting a maximum number of contacts, moving a minimum interval, smoothing a maximum range, and immobilized a maximum range.
In one embodiment, the maximum number of contacts is the maximum number of contacts that can be identified, and the greater the number of interactive people, the more contacts.
In one embodiment, the movement minimum interval is a set minimum movement pixel value, and when the movement position of the touch point exceeds the set pixel value, an effective movement is calculated, and the effective movement is not exceeded and is not counted.
In one embodiment, the moving minimum interval is a minimum interval pixel value set with two touch center points, and a valid touch point is counted when the two touch point interval pixel value is smaller than the set minimum value.
In one embodiment, the smooth maximum range is the maximum smooth size of the pixels around a single contact.
In one embodiment, the maximum motionless range is a maximum pixel value at which the set pixel point does not move, and when the control movement distance does not exceed the set value, the maximum motionless range is not calculated as an effective movement.
Claims (10)
1. A display touch control method based on a laser radar is characterized by comprising the following steps:
s1, after downloading and installing touch software into a local computer, opening the touch software, acquiring a local machine code, inputting an activation code, and completing software activation;
s2, connecting a laser radar, adding the laser radar into a hardware list, and controlling to start the laser radar;
s3, adding a display screen list, setting an interaction area, adding a playing material list, and playing according to the material list;
s4, through interconnection of the laser radar, the local computer and the display screen, touch control action and position are carried out in a display screen area, position information is obtained through the laser radar, position angles and distances of the touch control action are obtained through scanning of a sensor on the laser radar, two-dimensional point cloud position information is obtained, a polar coordinate system is established, the polar coordinate system is converted into a two-dimensional XY coordinate system, the relative position difference between the vertex of the screen and the laser radar is converted into an XY coordinate system of the vertex of the display screen, and the touch control action is acted on the display screen area through interactive logic judgment.
2. The lidar-based display touch control method according to claim 1, wherein the step S3 of adding the display screen list to set the interaction area is performed by configuring and setting the display screen, so as to correspond the display screen to the connected lidar device models one to one, acquiring point cloud data of the lidar by starting data push of the lidar, and adjusting the direction and the size according to the installation orientation of the lidar.
3. The lidar-based display touch control method of claim 1, wherein the scanning performed by the sensor on the lidar in S4 is performed continuously.
4. The lidar-based display touch control method of claim 1, wherein the establishing of the polar coordinate system in S4 is establishing of a polar coordinate system with the lidar as an origin.
5. The lidar-based display touch control method of any one of claims 1 to 4, wherein in step S4, the touch action is applied to the display screen area by calculating the resolution and the actual length and width distance of the display screen, and the computer converts the point cloud data obtained by the lidar sensor into the logical coordinate position of the display screen, and performs logical judgment according to different interaction characteristics, and finally displays the touch position in the display screen area and executes the touch interaction action.
6. The lidar-based display touch control method of claim 1, wherein the connection of S2 to the lidar comprises a wired connection or a local area network connection.
7. The lidar-based display touch control method of claim 6, wherein the local area network connection is a multi-device connection through a local area network established by a router.
8. The control system of the lidar-based display touch control method of any one of claims 1-7, comprising a lidar, a display screen, an application module, and a setup module.
9. The control system of the lidar-based display touch control method according to claim 8, wherein the setting module comprises a system setting unit, a network setting unit, a touch manner setting unit, a single-point touch setting unit, a multi-point touch setting unit, and an activation authorization setting unit.
10. The control system of claim 8, wherein the application module selects content of the played material through operations of starting, configuring and deleting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110839451.4A CN115016664A (en) | 2021-07-23 | 2021-07-23 | Display touch control method and control system based on laser radar |
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| CN202110839451.4A CN115016664A (en) | 2021-07-23 | 2021-07-23 | Display touch control method and control system based on laser radar |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015180855A (en) * | 2014-03-04 | 2015-10-15 | 株式会社リコー | Range-finding and detection system, touch sensor panel range-finding and detection system, laser radar range-finding and detection system, laser radar device, optical touch panel, and range-finding and detection method |
| CN105302296A (en) * | 2015-09-09 | 2016-02-03 | 浙江工业大学 | Man-machine interaction ground system based on laser radar |
| CN110413143A (en) * | 2018-11-20 | 2019-11-05 | 郑州智利信信息技术有限公司 | Man-machine interaction method based on laser radar |
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- 2021-07-23 CN CN202110839451.4A patent/CN115016664A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015180855A (en) * | 2014-03-04 | 2015-10-15 | 株式会社リコー | Range-finding and detection system, touch sensor panel range-finding and detection system, laser radar range-finding and detection system, laser radar device, optical touch panel, and range-finding and detection method |
| CN105302296A (en) * | 2015-09-09 | 2016-02-03 | 浙江工业大学 | Man-machine interaction ground system based on laser radar |
| CN110413143A (en) * | 2018-11-20 | 2019-11-05 | 郑州智利信信息技术有限公司 | Man-machine interaction method based on laser radar |
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