Implementation method and device for zero-contact control of projector

Abstract

The invention discloses a method and a device for realizing zero-contact control of a projector. Belongs to the technical field of computer equipment, and is characterized in that an aerial imaging control unit, a projection unit and the like are added on the basis of a current common projector, on one hand, a UI operation interface emerging in the air (outside a shell of the projector equipment) is provided for a user, and an operation instruction of the user is received; on one hand, the instruction is transmitted to an SOC chip in the projection equipment to make a corresponding response; according to the invention, an aerial imaging interaction technology is adopted, a control UI interface is presented in a space above the outside of a projector shell, and a user controls the projector in the air in a zero-contact mode. The UI interface emerging in the air has good imaging and control experience in a dark environment. Meanwhile, the control mode of zero contact of aerial imaging can improve the sense of science and technology of the product, and the competitiveness of the product is effectively improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of computer equipment, and relates to electronic products of the video projection type with built-in SOC chips and control devices thereof; in particular, it relates to a method and device for realizing zero-contact control of a projector. Background Art

[0002] At present, various types of projection equipment products are becoming increasingly popular. In order to achieve the display effect of the playback screen, projection products generally work in places with dim ambient light. In this context, using traditional control methods, whether it is the buttons on the control device or the function buttons on the remote control, the function characters on the buttons are difficult to distinguish clearly. Users need to turn on the lights to see the function characters on the control buttons to achieve accurate control, but turning on the lights will directly affect the image quality of the screen. Although frequent switching on and off of the lights to control the projection equipment can be solved, the user experience is not good. Summary of the invention

[0003] In view of the above problems, the present invention aims to provide a method and device for controlling a projector without any contact.

[0004] The technical solution of the present invention is: a zero-contact control projector device of the present invention comprises an aerial imaging control unit and a projection unit interconnected by a line;

[0005] The aerial imaging control unit has a built-in host computer SOC1, which includes a space suspension imaging module constructed by a DCT flat lens with a negative refractive index and a display screen, an interactive sensing module, and a control signal processing and output interface;

[0006] The projection unit has a built-in lower computer SOC2, which includes an optical imaging component, various signal processing and driving circuits, a speaker component and a power supply.

[0007] Furthermore, the SOC1 is connected to the interactive sensing module and the space suspension imaging module respectively through a signal processing circuit;

[0008] The SOC2 is connected to the signal driving circuit and the optical-mechanical imaging component in succession through the signal processing circuit.

[0009] Furthermore, the signal driving circuit is connected to the speaker assembly via a line;

[0010] The SOC1 and SOC2 are connected to each other;

[0011] The power supply is respectively supplied to the projection unit and the aerial imaging control unit.

[0012] Furthermore, the aerial imaging control unit is a host computer;

[0013] The projection unit is a lower computer;

[0014] The implementation process of the upper computer and the lower computer involves hardware and software parts.

[0015] Furthermore, the display screen is an LCD or OLED flat panel display screen.

[0016] Furthermore, the SOC1 adopts the PWM pulse width modulation encoding method of the NEC Protocol, and the control instruction issued is composed of a boot code, a client code and a key value code.

[0017] Furthermore, the device is also equipped with an infrared or radio frequency remote controller via wireless signals.

[0018] Furthermore, the device adds an aerial imaging and control unit to the current ordinary projector. On the one hand, it provides the user with an aerial UI operation interface and receives the user's operation instructions; on the other hand, it transmits the instructions to the SOC inside the projection device to make a corresponding response.

[0019] Furthermore, when the aerial imaging control unit works normally, the display screen in the space suspension imaging module hidden inside the device housing space displays the control UI interface image, and the DCT flat lens located above the display screen exerts its negative refraction effect to realize aerial imaging, and presents the UI interface image in the space above the housing.

[0020] At the same time, the interactive sensing module uses infrared or laser radar technology to monitor the UI control interface of aerial imaging, and sends the user's gestures and "touch" commands to the SOC2 of the projection unit after processing by the internal SOC1 to complete the corresponding operation;

[0021] After receiving the control command, the SOC2 of the projection unit feeds back the response information to SOC1 and performs corresponding operations. At the same time, the internal speaker emits a sound to feedback to the user, finally realizing the process of zero-contact control of the projector;

[0022] Furthermore, the method for implementing the zero-contact control of the projector device has the following operating steps:

[0023] 1. Power on the device. After the system is powered on, start SOC1 and SOC2 to load the software respectively;

[0024] 2. Then the system enters the standby state, at which time the aerial imaging interaction unit and the projection unit are both on standby, and the aerial imaging and projection are not turned on, waiting for the user to issue an instruction;

[0025] 3. The user swipes his finger in the air above the DCT tablet lens, and the interactive sensing module using laser radar technology detects the user's "activation" command;

[0026] 4. The projection unit starts working and starts playing the initial image of the projector; the aerial imaging module lights up the LCD screen inside the machine and presents the UI control interface in the air; at this time, the two units enter normal working state;

[0027] 5. At this time, the user can realize the air control process by touching the function button in the UI interface of the aerial imaging. At the same time, the speaker makes a sound to indicate to the user that the control command has been received, and the projection unit realizes the response process of the command;

[0028] 6. If the user does not perform any operation within the specified time, the interactive sensing module cannot detect the user's command information and will close the aerial imaging UI control screen;

[0029] However, when the user's gesture "activation" command is detected again, the aerial imaging UI control screen will be restarted;

[0030] 7. When the user selects the power button in the aerial imaging UI control interface and issues a shutdown command, the projection unit is turned off. When the user selects the power button again and issues a power-on command, the projection unit is restarted.

[0031] 8. After power failure, you need to turn on the device again according to the above steps.

[0032] The beneficial effects of the present invention are as follows: the present invention adopts the aerial imaging interaction technology to make the control UI interface float in the space above the outside of the projector housing, so that the user can control the projector in the air in a zero-contact manner. The UI interface floating in the air has a good display and control experience in a dim environment. At the same time, the aerial imaging zero-contact control method can enhance the technological sense of the product and effectively improve the competitiveness of such products. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall architecture of the system of the present invention;

[0034] Figure 2 This is an operation diagram for manipulating the UI interface in an embodiment of the present invention;

[0035] Figure 3 is a schematic diagram of the encoding values ​​corresponding to the control instructions in an embodiment of the present invention;

[0036] Figure 4 It is a workflow diagram for implementing the operation of the present invention. DETAILED DESCRIPTION

[0037] The specific technical scheme of the present invention is further described in detail below with reference to specific examples.

[0038] As shown in the figure, the implementation of the present invention is to add an aerial imaging and its control unit on the basis of the current ordinary projector. On the one hand, it provides the user with a UI operation interface that appears in the air (outside the projector device casing) to receive the user's operation instructions; on the other hand, it transmits the instructions to the SOC chip inside the projection device to make a corresponding response.

[0039] The main part of the system device for implementing the present invention has two units, including an aerial imaging control unit (playing the role of a host computer) and a projection unit (playing the role of a slave computer), and the implementation process involves the hardware and software parts of the relevant units;

[0040] The aerial imaging control unit has a built-in host computer SOC1 chip, including a space suspension imaging module constructed by a DCT flat lens with a negative refractive index and a display screen, an interactive sensing module, and a control signal processing and output interface.

[0041] The projection unit has a built-in SOC2 chip, including optical imaging components, various signal processing and driving circuits, speaker components, and power supply. The overall system architecture is as follows: Figure 1 shown.

[0042] When the aerial imaging control unit works normally, the LCD or OLED flat screen hidden in the suspended imaging module inside the device housing space displays the control UI interface image, and the DCT flat lens located above the display screen plays a role of negative refraction to achieve aerial imaging, and presents the UI interface image in the space above the housing.

[0043] At the same time, the interactive sensing module uses advanced technologies such as infrared or lidar to monitor the UI control interface of aerial imaging, and processes the user's gestures and "touch" commands through the internal SOC1 and then sends them to the projection unit SOC2 to complete the corresponding operations.

[0044] After receiving the control command, the projection unit SOC2 feeds back the response information to SOC1 and performs corresponding operations. At the same time, the internal speaker emits a sound to feedback to the user, improving the user's control experience and ultimately achieving the process of zero-contact control of the projector;

[0045] This method realizes the close-range control of the device. The device can also be equipped with an infrared or radio frequency remote control to meet the user's needs for long-distance control of the device.

[0046] The invention is used to realize the aerial imaging UI control interface such as Figure 2As shown. The user control process is similar to that of ordinary physical buttons. After the finger is placed in the air at the position of the corresponding function button, the projector completes the corresponding operation. In order to reduce the complexity of the internal receiving control signal processing of the SOC2 chip, this case uses the same control command encoding method as the infrared remote control. When processing the control signal sent by SOC1, SOC2 can directly call the existing infrared remote control command set module to respond. In this case, SOC1 uses the PWM pulse width modulation encoding method of the NEC Protocol, and the control command issued consists of a boot code, a client code, and a key value code. For specific code values ​​corresponding to the control functions, see Figure 3 .

[0047] The specific implementation steps of this device are as follows Figure 4 shown.

[0048] After the device is powered on, the SOC1 and SOC2 are started to load the software, and then the system enters the standby state. At this time, the aerial imaging interaction unit and the projection unit are both on standby, and the aerial imaging and projection are not turned on, waiting for the user to issue a command;

[0049] The user swipes his finger in the air above the DCT flat-panel lens, and the interactive sensing module using laser radar technology detects the user's "activation" command, and the projection unit starts working and starts playing the projector's initial screen; the aerial imaging module lights up the LCD screen inside the machine and presents the UI control interface in the air; at this time, the two units enter normal working state.

[0050] At this time, the user can realize the air control process by touching the function button in the UI interface of the air imaging. At the same time, the speaker makes a sound to indicate to the user that the control command has been received, and the projection unit realizes the response process of the command.

[0051] When the user does not operate for a period of time (for example, 1 minute), the interactive sensing module cannot detect the user's command information and will close the aerial imaging UI control screen; but after detecting the user's gesture "activation" command again, the aerial imaging UI control screen will be restarted.

[0052] When the user selects the power button in the aerial imaging UI control interface and issues a shutdown command, the projection unit is turned off, and the power button is selected again and a power-on command is issued to restart the projection unit.

[0053] After power failure, you need to turn on the device again according to the above steps.

Claims

1. A zero-contact control projector device, characterized in that: It includes an aerial imaging control unit and a projection unit interconnected by lines; The aerial imaging control unit has a built-in host computer SOC1, which includes a space suspension imaging module constructed by a DCT flat lens with a negative refractive index and a display screen, an interactive sensing module, and a control signal processing and output interface; The projection unit has a built-in lower computer SOC2, which includes an optical imaging component, various signal processing and driving circuits, a speaker component and a power supply.

2. The zero-contact control projector device according to claim 1, characterized in that: The SOC1 is connected to the interactive sensing module and the space suspension imaging module respectively through a signal processing circuit; The SOC2 is connected to the signal driving circuit and the optical-mechanical imaging component in succession through the signal processing circuit.

3. The zero-contact control projector device according to claim 2, characterized in that: The signal driving circuit is connected to the speaker assembly through a line; The SOC1 and SOC2 are connected to each other; The power supply is respectively supplied to the projection unit and the aerial imaging control unit.

4. The zero-contact control projector device according to claim 1, characterized in that: The aerial imaging control unit is a host computer; The projection unit is a lower computer; The implementation process of the upper computer and the lower computer involves hardware and software parts.

5. The zero-contact control projector device according to claim 1, characterized in that: The display screen is an LCD or OLED flat panel display screen.

6. The method and device for implementing zero-contact control of a projector according to claim 1, characterized in that: The SOC1 adopts the PWM pulse width modulation encoding method of the NEC Protocol, and the control command issued is composed of a boot code, a client code and a key value code.

7. The zero-contact control projector device according to claim 1, characterized in that: The device is also equipped with an infrared or radio frequency remote control via wireless signals.

8. The zero-contact control projector device according to claim 1, characterized in that: The device is based on the current ordinary projector, and adds an aerial imaging and control unit. On the one hand, it provides the user with a floating UI operation interface in the air and receives the user's operation instructions; on the other hand, it transmits the instructions to the SOC inside the projection device to make a corresponding response.

9. The zero-contact control projector device according to claim 1, characterized in that: When the aerial imaging control unit is working normally, the display screen in the space suspension imaging module hidden inside the device housing space displays the control UI interface image, and the DCT flat lens located above the display screen plays a role of negative refraction to achieve aerial imaging, and presents the UI interface image in the space above the housing. At the same time, the interactive sensing module uses infrared or laser radar technology to monitor the UI control interface of aerial imaging, and sends the user's gestures and "touch" commands to the SOC2 of the projection unit after processing by the internal SOC1 to complete the corresponding operation; After receiving the control command, the SOC2 of the projection unit feeds back the response information to SOC1 and performs corresponding operations. At the same time, the internal speaker emits a sound to feedback to the user, ultimately realizing the process of zero-contact control of the projector.

10. A method for implementing zero-contact control of a projector device as claimed in any one of claims 1 to 9, characterized in that: The operation steps are as follows:

1. Power on the device. After the system is powered on, start SOC1 and SOC2 to load the software respectively; 2. Then the system enters the standby state, at which time the aerial imaging interaction unit and the projection unit are both on standby, and the aerial imaging and projection are not turned on, waiting for the user to issue an instruction; 3. The user swipes his finger in the air above the DCT flat-panel lens, and the interactive sensing module using laser radar technology detects the user's "activation" command; 4. The projection unit starts working and starts playing the initial image of the projector; the aerial imaging module lights up the LCD screen inside the machine and presents the UI control interface in the air; at this time, the two units enter normal working state; 5. At this time, the user can realize the air control process by touching the function button in the UI interface of the aerial imaging. At the same time, the speaker makes a sound to indicate to the user that the control command has been received, and the projection unit realizes the response process of the command; 6. If the user does not perform any operation within the specified time, the interactive sensing module cannot detect the user's command information and will close the aerial imaging UI control screen; However, when the user's gesture "activation" command is detected again, the aerial imaging UI control screen will be restarted; 7. When the user selects the power button in the aerial imaging UI control interface and issues a shutdown command, the projection unit is turned off. When the user selects the power button again and issues a power-on command, the projection unit is restarted.

8. After power failure, you need to turn on the device again according to the above steps.

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