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CN-121985102-A - Projection control method for karaoke sound and karaoke sound

CN121985102ACN 121985102 ACN121985102 ACN 121985102ACN-121985102-A

Abstract

The invention discloses a projection control method for a karaoke sound, which comprises a first screen and a second screen, wherein the first screen is a display screen, the second screen is a projection device, the method comprises the steps of obtaining projection control mode setting after a system is started, wherein the projection control mode comprises default starting, default closing or automatic detection modes, obtaining distance information of a plurality of directions in front of the projection device when the projection control mode is the automatic detection mode, judging whether a projection environment meeting preset projection conditions exists or not based on the distance information, controlling the second screen to be in a starting state when a judgment result meets the preset projection conditions, and controlling the second screen to be in a closing state when the judgment result does not meet the preset projection conditions. The invention provides a projection control method for a karaoke sound and the karaoke sound, which solve the problem of poor experience of traditional projection start and stop.

Inventors

  • XIONG BO

Assignees

  • 拓觅未来科技(深圳)有限公司

Dates

Publication Date
20260505
Application Date
20251230

Claims (10)

  1. 1. A projection control method for a karaoke sound, the karaoke sound including a first screen and a second screen, the first screen being a display screen and the second screen being a projection device, the method comprising: After the system is started, acquiring projection control mode settings, wherein the projection control modes comprise a default on mode, a default off mode or an automatic detection mode; when the projection control mode is an automatic detection mode, distance information of a plurality of directions in front of the projection device is obtained; judging whether a projection environment meeting preset projection conditions exists or not based on the distance information; when the judgment result meets the preset projection condition, controlling the second screen to be in an open state; and when the judgment result does not meet the preset projection condition, controlling the second screen to be in a closed state.
  2. 2. The projection control method for a karaoke sound according to claim 1 wherein the projection condition includes a projection distance being within a range of 1-4 meters and a projection deflection angle not exceeding a preset angle threshold.
  3. 3. The projection control method for a karaoke sound according to claim 2 wherein said acquiring distance information in a plurality of directions includes: distance data in the left, middle and right directions in front of the projection device are acquired through the TOF sensor.
  4. 4. The projection control method for a karaoke sound according to claim 3 wherein it is judged that the projection environment does not satisfy the projection condition when none of the distance data in the left, middle and right directions is within a range of 1-4 meters. .
  5. 5. The projection control method for karaoke sounds of claim 1 wherein when distance data of at least one direction is within a range of 1-4 meters, a projection deflection angle is calculated based on the distance data and the calculated result is compared with the preset angle threshold.
  6. 6. The projection control method for a karaoke sound according to claim 1, further comprising, after judging that a projection environment satisfies a projection condition based on the distance information: and acquiring a projection environment image acquired by the camera, and further judging whether the projection environment meets preset display conditions or not based on the projection environment image.
  7. 7. The projection control method for a karaoke sound system of claim 6 wherein said determining whether a preset display condition is met based on a projection environment image comprises: Dividing the projection environment image into a plurality of areas, analyzing gray information of each area, and judging that the projection environment does not meet the preset display condition when the gray deviation of at least one area exceeds a preset threshold value.
  8. 8. The projection control method for a karaoke sound according to claim 1 wherein the projection environment judging step is periodically performed at preset time intervals.
  9. 9. The projection control method for a karaoke sound of claim 8 wherein the preset time interval is 200 milliseconds.
  10. 10. A karaoke sound device, which comprises a sound box, characterized by comprising the following steps: A first screen; A second screen; a projection control module; A distance detection module; wherein the projection control module is configured to perform the projection control method of any of claims 1-9.

Description

Projection control method for karaoke sound and karaoke sound Technical Field The invention relates to the technical field of sound equipment, in particular to a projection control method for a karaoke sound equipment and the karaoke sound equipment. Background With the continuous rise of the demands for home entertainment and mobile entertainment, karaoke audio products integrating display and audio functions are becoming popular with users. The existing karaoke sound equipment mostly adopts a liquid crystal display screen as a main lyric and interface display window, some products are additionally integrated with a projection module, lyrics and pictures can be projected onto a larger curtain or wall surface, and therefore immersion feeling and interaction experience of a user are improved. However, the existing dual-display karaoke stereo with screen and projection generally defaults to enabling both the screen and projection module after power-on. Because the display screen and the projection device are high-power consumption components, under the condition of simultaneous working, the whole energy consumption can be obviously increased, the battery endurance time of the product in an outdoor scene is shortened, and the long-time use of the product by a user is not facilitated. In addition, in some use environments, such as outdoor strong light environment and space limitation environment, the projection function cannot function, if the projection is still kept open, not only energy waste is caused, but also problems of equipment heating, fan noise and the like can be generated, and user experience is affected. Therefore, on the premise of ensuring user experience, according to the starting state of the intelligent management screen and projection of the use scene, the projection module is automatically closed in the occasion unsuitable for using projection, so that the energy conservation, consumption reduction and continuous voyage are realized, and the technical problem to be solved is urgent. Disclosure of Invention The invention aims to provide a projection control method for a karaoke sound and the karaoke sound, and aims to solve the problem that the traditional projection is poor in opening and closing experience. The application discloses a projection control method for karaoke sound, which adopts the following technical scheme: first aspect There is provided a projection control method for a karaoke sound including a first screen and a second screen, the first screen being a display screen and the second screen being a projection device, the method comprising: After the system is started, acquiring projection control mode settings, wherein the projection control modes comprise a default on mode, a default off mode or an automatic detection mode; when the projection control mode is an automatic detection mode, distance information of a plurality of directions in front of the projection device is obtained; judging whether a projection environment meeting preset projection conditions exists or not based on the distance information; when the judgment result meets the preset projection condition, controlling the second screen to be in an open state; and when the judgment result does not meet the preset projection condition, controlling the second screen to be in a closed state. Optionally, the projection condition comprises that the projection distance is in the range of 1-4 meters, and the projection deflection angle does not exceed a preset angle threshold. Optionally, the acquiring distance information of multiple directions includes: distance data in the left, middle and right directions in front of the projection device are acquired through the TOF sensor. Optionally, when the distance data in the left, middle and right directions are not in the range of 1-4 meters, judging that the projection environment does not meet the projection condition. . Optionally, when the distance data of at least one direction is within a range of 1-4 meters, calculating a projection deflection angle based on the distance data, and comparing the calculation result with the preset angle threshold. Optionally, after determining that the projection environment meets the projection condition based on the distance information, the method further includes: and acquiring a projection environment image acquired by the camera, and further judging whether the projection environment meets preset display conditions or not based on the projection environment image. Optionally, the determining whether the preset display condition is met based on the projection environment image includes: Dividing the projection environment image into a plurality of areas, analyzing gray information of each area, and judging that the projection environment does not meet the preset display condition when the gray deviation of at least one area exceeds a preset threshold value. Optionally, the method periodically executes the projection environment