CN113867522A - Interactive projection control method and device, induction pad and interactive projector - Google Patents
Interactive projection control method and device, induction pad and interactive projector Download PDFInfo
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- CN113867522A CN113867522A CN202111015105.0A CN202111015105A CN113867522A CN 113867522 A CN113867522 A CN 113867522A CN 202111015105 A CN202111015105 A CN 202111015105A CN 113867522 A CN113867522 A CN 113867522A
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- 230000002452 interceptive effect Effects 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000006698 induction Effects 0.000 title description 12
- 230000008859 change Effects 0.000 claims abstract description 53
- 238000001514 detection method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 4
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- 230000005540 biological transmission Effects 0.000 description 2
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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
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
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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
- G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
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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
- G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
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Abstract
The invention provides an interactive projection control method and device, a sensing pad and an interactive projector, wherein the interactive projection control method comprises the following steps. Detecting temperature change signals of all initial position points on a target projection area; the target projection area is used for displaying current projection content; and determining an initial position point corresponding to the temperature change signal meeting the preset condition as a target position point, then generating a projection control instruction according to the acquired coordinates of the plurality of target position points, and performing corresponding operation on the current projection content based on the projection control instruction so as to switch the current projection content into new projection content. The method and the device can sense the operation of the user on the target projection area based on the temperature, avoid the problems that the user operation cannot be identified or the user operation is mistakenly identified when the projection area in the prior art is shielded, and greatly improve the experience and satisfaction of the user on the interactive projection product.
Description
Technical Field
The invention relates to the technical field of interactive projection control, in particular to an interactive projection control method and device, an induction pad and an interactive projector.
Background
At present, the application of interactive projection technology is more and more extensive, including consumer electronics products such as projectors, for example, touch projectors, and users can play games, educate parents and children, watch videos, and the like by operating interactive projection areas, and are more and more popular with users; in other application occasions, the interactive projection area is used for propagandizing and displaying culture, business and other publicity and exhibition, such as exhibition halls, market advertisements and the like, and users can know interested contents through manually operating the projection area, so that convenience is provided for exhibitors, and better service and experience are provided for the users.
However, the traditional interactive projection product has very high requirements on the projection area, and the projection area is not shielded by any other objects. Once a projection area has a partial area blocked, two problems are likely to occur. The method is characterized in that the user operation identification is wrong or cannot be identified due to the influence of a shielding object; the other is that the blocking object is mistakenly identified as the operation of the user, so that the problem of misoperation on the projection area is caused; the two conditions influence the smooth operation of the user on the projection area, and reduce the user experience and the satisfaction degree of the interactive projection product.
Disclosure of Invention
In order to solve the problem that the requirement of the existing interactive projection product on the projection area is too high, one or more embodiments of the invention provide an interactive projection control method and device, an induction pad and an interactive projector, so as to achieve the technical purposes of reducing the requirement on the interactive projection area, improving the user experience and satisfaction degree and the like.
To achieve the above technical object, the present invention provides an interactive projection control method, which may include, but is not limited to, one or more of the following steps.
Detecting temperature change signals of all initial position points on a target projection area; wherein, the target projection area is used for showing the current projection content.
And determining the initial position point corresponding to the temperature change signal meeting the preset condition as a target position point.
And generating a projection control instruction according to the acquired coordinates of the plurality of target position points.
And operating the current projection content based on the projection control instruction so as to switch the current projection content into new projection content.
Further, the detecting the temperature variation signal of each initial position point on the target projection area includes:
and reading the resistance values of the thermistors respectively arranged at the initial position points.
And obtaining temperature change signals of each initial position point according to the resistance value change of the thermistor.
Further, the thermistors arranged at the initial positions form a thermistor array; the reading of the resistance values of the thermistors respectively disposed at the respective initial position points includes:
and scanning the thermistor array at least twice according to a set sequence, and reading the resistance value of the thermistor in the scanning process.
And determining the resistance value change of the thermistor according to at least two scanning results.
Further, the determining the initial position point corresponding to the temperature change signal meeting the preset condition as the target position point includes:
and judging whether each temperature change signal meets a preset condition, wherein the preset condition is a temperature change range caused by direct or indirect touch of a human hand on the thermistor.
And taking the initial position point corresponding to the temperature change signal meeting the preset condition as a target position point.
Further, the generating a projection control command according to the acquired coordinates of the plurality of target position points includes:
acquiring the identification of each thermistor arranged at the target position point; and the marks of the thermistors correspond to the coordinates of the target position points one by one.
And converting the identifier of the thermistor into the coordinates of the target position point.
And generating a projection control instruction for controlling the current projection content according to the coordinates of the target position point.
Further, the operating the current projection content based on the projection control instruction comprises:
and controlling the projection content of the area where the target position point is located according to the projection control instruction.
Further, the operating the current projection content based on the projection control instruction comprises:
and controlling the projection content around the target position point according to the projection control instruction.
In order to achieve the above technical objectives, the present invention can also provide an interactive projection control device, which may include, but is not limited to, a temperature change detection module, a target position determination module, a control instruction generation module, and a projection content control module.
The temperature change detection module is used for detecting temperature change signals of all initial position points on the target projection area; wherein, the target projection area is used for showing the current projection content.
And the target position determining module is used for determining the initial position point corresponding to the temperature change signal meeting the preset condition as a target position point.
And the control instruction generating module is used for generating a projection control instruction according to the acquired coordinates of the target position points.
And the projection content control module is used for operating the current projection content based on the projection control instruction so as to switch the current projection content into new projection content.
To achieve the above technical object, the present invention can also provide a sensor pad, which can specifically include, but is not limited to, an interactive projection control device in any embodiment of the present invention.
To achieve the above technical objects, the present invention can also provide an interactive projector, which can include, but is not limited to, the sensor pad in any embodiment of the present invention.
The invention has the beneficial effects that: the method and the device can sense the operation of the user on the target projection area based on the temperature, and avoid the problems that the user operation cannot be identified or the user operation is mistakenly identified when the projection area is shielded in the prior art. The touch position of the hand of the user is detected through the thermistor, the problems that the hand cannot be identified or is mistakenly identified due to the shielding object are solved, and the sensitivity and the reliability of the induction pad for sensing the hand operation are greatly improved.
According to the invention, under the condition that the projection area is shielded, the requirements of a user on effective and smooth operation of the projection area on the induction pad by using an interactive projection product are met, the experience of the user on the interactive projection product is greatly improved, and the satisfaction of the user on the interactive projection product is improved.
Drawings
Fig. 1 is a flowchart illustrating an interactive projection control method provided in one or more embodiments of the present invention.
FIG. 2 shows a schematic diagram of a sensor pad with a thermistor according to one or more embodiments of the invention.
Fig. 3 is a schematic diagram illustrating an interactive projection control apparatus provided in one or more embodiments of the present invention.
In the figure, the position of the upper end of the main shaft,
100. a sensing pad.
200. A thermistor.
Detailed Description
The following explains and explains an interactive projection control method and apparatus, a sensor pad, and an interactive projector in detail, which are provided by the present invention, in conjunction with the drawings of the specification.
Conventional interactive projection products are based on laser recognition of user operations: the user places the finger in the induction pad projection area, and the finger will reflect the laser that the equipment bottom sent, and then judge the position of finger in the projection area and carry out corresponding projection content operation. However, if the projection area is blocked, for example, a long cuff falls on the projection area and is mistakenly recognized, or a finger of a user cannot be recognized or partially recognized due to dust or the like, the user cannot smoothly operate the projection content, which affects the experience and satisfaction of the user.
In view of the fact that a general product with interactive projection has high requirements on the induction pad and requires no shielding of any other object in a projection area, the problems that projection control is mistakenly identified or user actions cannot be identified frequently occur, and the like, and further the problems that user experience and satisfaction are poor are caused; the invention provides an interactive projection control method and device, an induction pad and an interactive projector, and aims to solve one or more problems in the prior art.
As shown in fig. 1, one or more embodiments of the present invention may specifically provide an interactive projection control method, which includes, but is not limited to, one or more of the following steps.
And step 100, detecting temperature change signals of all initial position points on the target projection area. The target projection area in this embodiment is used for displaying the current projection content, the target projection area is located on a sensing mat of the interactive projector, and a user operates the target projection area on the sensing mat.
The thermistor used for detecting temperature change is arranged on the sensing pad, so that the change of the resistance value of the thermistor can be caused by the operation of human hands on the target projection area. The detecting of the temperature change signal of each initial position point on the target projection area according to the embodiment of the present invention may include: and reading the resistance values of the thermistors respectively arranged at the initial position points, and obtaining temperature change signals of the initial position points according to the resistance value change of the thermistors. It should be understood that a thermistor is a sensor resistor whose resistance changes with temperature. Under the teaching of the technical solution of the present invention, other temperature sensors having the same or similar function as the thermistor can also be used to achieve the technical purpose of the present invention.
Optionally, the thermistors arranged at the initial positions in the embodiment of the invention form a thermistor array, and the density of the thermistor array can be reasonably set according to the factors such as the size of the projection area, the resolution of the camera, the projection content and the like. The reading of the resistance values of the thermistors respectively arranged at the initial position points in the embodiment of the invention specifically comprises the following steps: and scanning the thermistor array at least twice according to a set sequence, reading the resistance value of the thermistor in the scanning process, wherein the scanning mode comprises but is not limited to line-by-line scanning or column-by-column scanning and the like, and determining the resistance value change of the thermistor according to the scanning results of at least two times.
And 200, determining an initial position point corresponding to the temperature change signal meeting the preset condition as a target position point.
When a user operates the projection area on the sensing mat, some thermistors can detect temperature changes caused by the touch of a human hand. Determining an initial position point corresponding to the temperature change signal meeting the preset condition as a target position point in the embodiment of the present invention includes: judging whether each temperature change signal meets a preset condition, wherein the preset condition of the embodiment is a temperature change range caused by direct or indirect touch of a human hand on the thermistor, namely judging whether the current temperature change is caused by the touch of the human hand, and the temperature change range in the embodiment of the invention can be, for example, 25-39 ℃, but is not limited thereto; then, the initial position point corresponding to the temperature change signal meeting the preset condition is used as the target position point.
And 300, generating a projection control command according to the acquired coordinates of the plurality of target position points.
The embodiment of the invention for generating the projection control command according to the acquired coordinates of the plurality of target position points comprises the following steps: acquiring the identification of each thermistor arranged at a target position point; the identification of the thermistor corresponds to the coordinates of the target position point one by one, the identification information of the thermistor can be transmitted to the interactive projector processor in a Bluetooth mode, the identification of the thermistor can be converted into the coordinates of the target position point through the projection equipment processor, and a projection control instruction for controlling the current projection content is generated according to the coordinates of the target position point.
It will be appreciated that the initial location points correspond one-to-one to the thermistors, and that each thermistor has a unique identification ID. Therefore, the unique identifier ID of the thermistor in the present invention corresponds one-to-one to the coordinates of the initial position point.
Optionally, the converting the identifier ID of the thermistor into the coordinates of the target location point according to the embodiment of the present invention may include: reading stored identification ID and coordinate relation data, such as [ ID0, (x0, y0) ], [ ID1, (x1, y1) ], [ ID2, (x2, y2) ] … …, wherein ID0, ID1 and ID2 … … are used for representing identification ID of the thermistor, (x0, y0), (x1, y1), (x2, y2) … … is used for representing one-to-one corresponding coordinate; the coordinates corresponding to the identification ID of each thermistor currently acquired, that is, the coordinates of the target position point are determined from the identification ID-coordinate relationship data, and for example, the present embodiment may determine the position point (x1, y1) and the like from the identification ID 1.
And step 400, operating the current projection content based on the projection control instruction to switch the current projection content of the projector into new projection content.
Optionally, the operating the current projection content based on the projection control instruction in the embodiment of the present invention may include: and controlling the projection content of the area where the target position point is located according to the generated projection control instruction, and/or controlling the projection content around the target position point according to the projection control instruction.
Compared with the situation that the requirement on the projection area is too high in the conventional technology, the operation of the hand in other areas can still be sensed through the thermistor even if the projection area of the sensing pad part is shielded by applying the invention, and the problem of misoperation caused by mistakenly identifying the shielding object as the hand is avoided because the temperature of the shielding object is often different from that of the hand, so that the problem of normally operating the projection area by a user is solved, the user can smoothly and smoothly manually operate the projection area, and the experience and satisfaction degree of the user on interactive projection products are greatly improved.
As shown in fig. 3, and with reference to fig. 1 and fig. 2, based on the same technical concept as the interactive projection control method of the present invention, the present invention further provides an interactive projection control device, which may include, but is not limited to, a temperature change detection module, a target position determination module, a control instruction generation module, and a projection content control module, wherein the interactive projection control device may be implemented by hardware in combination with software or pure hardware, so as to achieve the technical object of the present invention.
The temperature change detection module belongs to a signal acquisition module and is used for detecting temperature change signals of all initial position points on a target projection area; and the target projection area is used for displaying the current projection content. In this embodiment, the temperature change detection module is specifically configured to read the resistance values of the thermistors respectively disposed at the initial position points, and to obtain the temperature change signal of each initial position point according to the change in the resistance value of the thermistor. More specifically, the temperature change detection module is used for scanning the thermistor array at least twice according to a set sequence, reading the resistance value of the thermistor in the scanning process, and determining the resistance value change of the thermistor according to the scanning results of at least two times.
The target position determining module may be configured to determine an initial position point corresponding to the temperature change signal that satisfies a preset condition as a target position point. The target position determining module is specifically configured to determine whether each temperature change signal satisfies a preset condition, and to use an initial position point corresponding to the temperature change signal satisfying the preset condition as a target position point. The preset condition in this embodiment is a temperature variation range caused by a human hand directly or indirectly touching the thermistor.
The control instruction generation module is used for generating a projection control instruction according to the acquired coordinates of the plurality of target position points. The control instruction generation module is used for acquiring the identifiers of the thermistors arranged at the target position point, converting the identifiers of the thermistors into the coordinates of the target position point, and generating a projection control instruction for controlling the current projection content according to the coordinates of the target position point. The mark of the thermistor corresponds to the coordinates of the target position point one by one.
The projection content control module is used for operating the current projection content based on the projection control instruction so as to switch the current projection content into new projection content. The projection content control module in the embodiment of the invention is specifically used for controlling the projection content of the area where the target position point is located according to the projection control instruction, and/or the projection content control module is specifically used for controlling the projection content around the target position point according to the projection control instruction.
It should be understood that the control instruction generation module and the projection content control module in the embodiment of the present invention may be integrated on a processor of an interactive projector, but are not limited thereto.
As shown in fig. 2, one or more embodiments of the present invention can provide a sensor pad 100, and the sensor pad 100 can include, but is not limited to, an interactive projection control device in any embodiment of the present invention. The sensing resistor 200 of the present invention is arranged on the sensing pad 100 in a sensing resistor array. The thermistor 200 can be laid on the surface of the induction pad 100, and the hand of a person can directly touch the thermistor; alternatively, each thermistor 200 is disposed in the sensing pad 100, and a heat conductive film is coated on the upper surface, so that a user can sense the heat conductive film by the thermistor when touching the heat conductive film. The temperature change detection module and the target position determination module included in the interactive projection control device according to some embodiments of the present invention may be embedded in the sensor pad 100.
The size of the sensing pad in the embodiment of the present invention is 400mm × 300mm (i.e. the size of the projection area in the embodiment of the present invention), and 80 × 60 thermistors are arranged to form a thermistor array which uniformly covers the projection area on the whole sensing pad, and the distribution of the thermistors is illustrated in fig. 2.
One or more embodiments of the present invention can also provide an interactive projector, which may include, but is not limited to, the sensing pad in any embodiment of the present invention, and the related device for implementing the projection function in the interactive projector may be connected to the sensing pad through a wireless transmission manner such as bluetooth or a wired transmission manner. For other structures of the interactive projector except for the induction pad, the invention can be reasonably selected according to actual needs, for example, the power supply module provides power for devices such as the induction pad and the like, and the power supply mode is a wireless power supply mode or a wired power supply mode and the like, and the embodiment of the invention will not be described in detail.
The logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable storage medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable storage medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer cartridge (magnetic device), a Random Access Memory (RAM), a Read-Only Memory (ROM), an Erasable Programmable Read-Only Memory (EPROM-Only Memory, or flash Memory), an optical fiber device, and a portable Compact Disc Read-Only Memory (CDROM). Additionally, the computer-readable storage medium may even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic Gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic Gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "the present embodiment," "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and simplifications made in the spirit of the present invention are intended to be included in the scope of the present invention.
Claims (10)
1. An interactive projection control method, comprising:
detecting temperature change signals of all initial position points on a target projection area; the target projection area is used for displaying current projection content;
determining the initial position point corresponding to the temperature change signal meeting the preset condition as a target position point;
generating a projection control instruction according to the obtained coordinates of the target position points;
and operating the current projection content based on the projection control instruction so as to switch the current projection content into new projection content.
2. The interactive projection control method of claim 1, wherein the detecting the temperature variation signal of each initial position point on the target projection area comprises:
reading the resistance values of the thermistors respectively arranged at the initial position points;
and obtaining temperature change signals of each initial position point according to the resistance value change of the thermistor.
3. The interactive projection control method of claim 2, wherein the thermistors disposed at the respective initial positions form a thermistor array; the reading of the resistance values of the thermistors respectively disposed at the respective initial position points includes:
scanning the thermistor array at least twice according to a set sequence, and reading the resistance value of the thermistor in the scanning process;
and determining the resistance value change of the thermistor according to at least two scanning results.
4. The interactive projection control method according to claim 2 or 3, wherein the determining the initial position point corresponding to the temperature change signal satisfying the preset condition as the target position point comprises:
judging whether each temperature change signal meets a preset condition, wherein the preset condition is a temperature change range caused by direct or indirect touch of a human hand on the thermistor;
and taking the initial position point corresponding to the temperature change signal meeting the preset condition as a target position point.
5. The interactive projection control method according to claim 2 or 3, wherein the generating of the projection control command according to the acquired coordinates of the plurality of target position points comprises:
acquiring the identification of each thermistor arranged at the target position point; the mark of the thermistor corresponds to the coordinates of the target position point one by one;
converting the identifier of the thermistor into a coordinate of a target position point;
and generating a projection control instruction for controlling the current projection content according to the coordinates of the target position point.
6. The interactive projection control method of claim 1, wherein the operating the current projection content based on the projection control instruction comprises:
and controlling the projection content of the area where the target position point is located according to the projection control instruction.
7. The interactive projection control method of claim 1, wherein the operating the current projection content based on the projection control instruction comprises:
and controlling the projection content around the target position point according to the projection control instruction.
8. An interactive projection control device, comprising:
the temperature change detection module is used for detecting temperature change signals of all initial position points on the target projection area; the target projection area is used for displaying current projection content;
the target position determining module is used for determining the initial position point corresponding to the temperature change signal meeting the preset condition as a target position point;
the control instruction generating module is used for generating a projection control instruction according to the acquired coordinates of the target position points;
and the projection content control module is used for operating the current projection content based on the projection control instruction so as to switch the current projection content into new projection content.
9. A sensor mat comprising the interactive projection control device of claim 8.
10. An interactive projector comprising the sensor pad of claim 9.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115933890A (en) * | 2023-03-15 | 2023-04-07 | 北京点意空间展览展示有限公司 | Interactive projection method and system for exhibition hall |
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