CN214409637U

CN214409637U - Wired three-dimensional signal processing device

Info

Publication number: CN214409637U
Application number: CN202120448001.8U
Authority: CN
Inventors: 苏兴华
Original assignee: Beijing Huali Zhixin Technology Co ltd
Current assignee: Beijing Huali Zhixin Technology Co ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2021-10-15
Anticipated expiration: 2031-03-02

Abstract

The utility model provides a wired three-dimensional signal processing apparatus, including the MCU module to and a plurality of synchronizing signal output interface, information display module, manual adjust knob, the synchronizing signal collection module that are connected respectively with the MCU module, synchronizing signal collection module is connected with the picture card of computer through the three-dimensional signal interface, the MCU module is connected with manual adjust knob. The wired stereo signal processing device can provide multiple paths of limited signals, keeps the signals stable, prevents signal distortion, can adjust the signals, can adjust frame delay, left and right eye switching, black field duration and the like by using a manual adjusting knob, can observe through the information display module, and can rotate the knob to adjust when left and right eye pictures are abnormal.

Description

Wired three-dimensional signal processing device

Technical Field

The utility model relates to a three-dimensional signal processor especially relates to a wired three-dimensional signal processing device.

Background

The stereoscopic glasses work on the principle that when the display screen is in an active stereoscopic mode, the image card driving program renders images of left and right eyes alternately, for example, a first frame is an image of a left eye, a next frame is an image of a right eye, the image of the left eye is rendered again in the next frame, and the images are rendered alternately in sequence. When the left eye image is displayed on the display screen, the shutter of the left lens is opened by the glasses and the shutter of the right lens is closed at the same time, when the right eye image is displayed on the display screen, the shutter of the right lens is opened by the glasses and the shutter of the left lens is closed at the same time, and therefore the brain forms stereoscopic vision according to the visual temporary storage effect. The switching frequency of the lens of the stereoscopic glasses is required to be completely consistent with the switching frequency of the left eye image and the right eye image of the display screen, otherwise, only double images can be seen without stereoscopic images when the stereoscopic glasses are worn. The stereo glasses in the current market are synchronized through wireless infrared signals or wireless radio frequency pulse signals sent by a synchronization signal transmitter connected to a graphic card. However, in some special occasions or applications, the use of wireless signals is not allowed for the reason of data security and the like, and the wireless signals are prevented from leaking. Therefore, the synchronization signal transmitter must be redesigned to enable the stereo glasses to be synchronized by the wired cable signal.

SUMMERY OF THE UTILITY MODEL

The utility model provides a wired three-dimensional signal processing apparatus has solved the problem of the three-dimensional signal modulation of wired mode transmission and enlargies, its technical scheme as follows:

the utility model provides a wired stereo signal processing apparatus, includes the MCU module to and a plurality of synchronizing signal output interface, information display module, manual adjust knob, the synchronizing signal collection module that are connected respectively with the MCU module, synchronizing signal collection module is connected with the picture card of computer through the stereo signal interface, the MCU module is connected with manual adjust knob.

The manual adjusting knob comprises a synchronous delay adjusting knob and a black field width adjusting knob, and the synchronous delay adjusting knob is communicated with the MCU module by adopting a 74LV2G04 chip.

And the MCU module adopts an STM32F103 chip to process stereo signals and synchronize images.

The device is also provided with a cascade interface which is used for connecting the three-dimensional signal interfaces of other wired three-dimensional signal processing devices.

The synchronous signal output interface adopts a 4-core aviation interface and is remotely connected to the stereoscopic glasses through an aviation shielding cable.

The synchronous signal acquisition module adopts a 74HCT245 chip.

The information display module adopts a colorful LCD display screen.

The synchronous signal output interface comprises five paths which are respectively a first synchronous signal output interface, a second synchronous signal output interface, a third synchronous signal output interface, a fourth synchronous signal output interface and a fifth synchronous signal output interface.

The wired stereo signal processing device can provide multiple paths of limited signals, keep the signals stable, prevent signal distortion, adjust the signals, and adjust frame delay, left-right eye switching, black field duration and the like by using a manual adjusting knob. The observation is carried out through an information display module (an LCD display screen), and the knob can be rotated to carry out adjustment when the left and right eye pictures are abnormal.

Drawings

Fig. 1 is a schematic circuit connection diagram of the wired stereo signal processing device;

fig. 2 is a schematic interface diagram of the wired stereo signal processing device.

Detailed Description

As shown in fig. 1, the wired stereo signal processing device includes an MCU module 2, a plurality of synchronous signal output interfaces respectively connected to the MCU module 2, an information display module 3, a manual adjustment knob 4, a synchronous signal acquisition module 1, and a power input interface 10 connected to a power supply.

Referring to fig. 2, the information display module 3 is a color LCD display screen, and the manual adjustment knob 4 includes a synchronous delay adjustment knob and a black field width adjustment knob. The wired stereo signal processing device is also provided with a stereo signal interface 12 and a cascade interface 11, the stereo signal interface 12 is connected with the synchronous signal acquisition module 1, and the cascade interface 11 is used for connecting stereo signal interfaces 12 of other wired stereo signal processing devices.

When the glasses are used, the stereo signals are output to the wired stereo signal processing device by the computer, and are output to the glasses transmitter after being forced to be synchronous with images by the wired stereo signal processing device, so that the processing delay of the intermediate equipment is reduced.

The following is a description of the modules:

the stereo signal interface 12 is used for connecting to a graphic card of a computer and collecting synchronous pulses output by the graphic card.

The synchronous signal acquisition module 1 adopts a 74HCT245 chip for realizing bidirectional asynchronous communication of a data bus, and is used as a buffer between the stereo signal interface 12 and the MCU module 2.

The MCU module 2 adopts an STM32F103 chip, and the wired stereo signal processing device forces stereo signals and images to be synchronized through the MCU module 2, so that the pulse time sequence of the output synchronous signals is accurately adjusted, and the frequency and the left and right images on the screen are switched to be synchronized.

The information display module 3 adopts a colorful LCD display screen and is used for observing when the manual adjusting knob 4 is used, and the manual adjusting knob 4 can be rotated to adjust when left and right eye pictures are abnormal.

The manual adjusting knob 4 can adjust frame delay, left-right eye switching, black field duration and the like. The synchronous delay adjusting knob adopts a 74LV2G04 chip to communicate with the MCU module 2, so that an L/R left-right eye switch is realized: some 3D programs that are not compatible with graphics cards that cannot determine whether the rendering output is a left-eye or right-eye image, result in that although the stereo glasses are consistent with the image switching frequency, the left-eye and right-eye images may be reversed, i.e., the left eye sees the right-eye image and the right eye sees the left-eye image, in which case the image has no stereo perception although there is no ghost. When this occurs, it is necessary to correct the phase of the synchronization signal by switching the left and right eye switches. The black field width adjustment knob is used to increase the lens black field (Dark Interval) time. The MCU module of the stereo signal synchronous transmitter is used for increasing the closing time of the lenses, namely after one lens is closed, the other lens is delayed to be opened, and the virtual image can not be seen. But there is some attenuation in the stereoscopic brightness of the screen due to the increase in black field time.

The wired stereo signal processing device outputs the processed stereo synchronous signals to wired stereo glasses through the synchronous signal output interface to carry out stereo picture watching.

The cascade interface 11 can be connected to a plurality of stereo glasses in a cascade manner, and for the stereo glasses at a remote position, a cascade manner of a plurality of stereo signal transmitters can be adopted, so that the signal intensity is enhanced, and the attenuation of stereo signals is prevented.

The input interface 10 adopts a power switch as a power supply of the wired stereo signal processing device.

Each wired stereo signal processing device can be connected with 5 stereo glasses at present. The wired stereo signal processing device can be in cascade connection, and multi-path stereo signal output is expanded.

Claims

1. A wired stereo signal processing device is characterized in that: the device comprises an MCU module, and a plurality of synchronous signal output interfaces, an information display module, a manual adjusting knob and a synchronous signal acquisition module which are respectively connected with the MCU module, wherein the synchronous signal acquisition module is connected with a graphic card of a computer through a three-dimensional signal interface, and the MCU module is connected with the manual adjusting knob.

2. The wired stereo signal processing device according to claim 1, wherein: the manual adjusting knob comprises a synchronous delay adjusting knob and a black field width adjusting knob, and the synchronous delay adjusting knob is communicated with the MCU module by adopting a 74LV2G04 chip.

3. The wired stereo signal processing device according to claim 1, wherein: and the MCU module adopts an STM32F103 chip to process stereo signals and synchronize images.

4. The wired stereo signal processing device according to claim 1, wherein: the device is also provided with a cascade interface which is used for connecting the three-dimensional signal interfaces of other wired three-dimensional signal processing devices.

5. The wired stereo signal processing device according to claim 1, wherein: the synchronous signal output interface adopts a 4-core aviation interface and is remotely connected to the stereoscopic glasses through an aviation shielding cable.

6. The wired stereo signal processing device according to claim 1, wherein: the synchronous signal acquisition module adopts a 74HCT245 chip.

7. The wired stereo signal processing device according to claim 1, wherein: the information display module adopts a colorful LCD display screen.

8. The wired stereo signal processing device according to claim 1, wherein: the synchronous signal output interface comprises five paths which are respectively a first synchronous signal output interface, a second synchronous signal output interface, a third synchronous signal output interface, a fourth synchronous signal output interface and a fifth synchronous signal output interface.