A multi-host automatic switching space interaction control method

Abstract

The application discloses a multi-host automatic switching space interaction control method, which is applied to a handheld intelligent pointing remote controller terminal. The method prestores a target configuration set, which contains the correspondence relationship of target ID, homographic mapping relationship, normalized boundary threshold value and receiver ID; in normal working condition, the RGB camera is closed, the current target inner normalized coordinate is acquired through infrared positioning and is sent to the bound receiver; whether the coordinate enters the boundary inward shrinkage threshold value area is monitored in real time, if triggering, the RGB camera is woken up to identify a new target, the communication link is automatically switched to the new receiver according to the configuration set and the new target mapping relationship is applied. The application realizes multi-host non-inductive switching, does not need manual pairing or host end intervention, and is suitable for multi-screen and multi-device interaction scenes.

Description

Technical Field

[0001] This invention relates to the field of space human-computer interaction and wireless communication technology, specifically to a control method that supports automatic switching of communication links and interaction mapping relationships by handheld terminals in multi-target, multi-host scenarios. Background Technology

[0002] In scenarios such as multi-screen command centers and smart exhibition halls, users often need to control multiple hosts with a single interactive device. Existing solutions have significant shortcomings: Relying on host software switching or manual button pairing is cumbersome and disrupts the interaction process. External positioning systems cannot sense the relative relationship between the terminal and different screens, and cannot automatically determine when to switch. The switching process requires reconfiguration or reconnection, resulting in high latency and a fragmented user experience. Without target recognition capabilities based on terminal vision, it is impossible to achieve seamless switching of "move in and switch out". Summary of the Invention

[0003] 1. Purpose of the invention This paper presents a multi-host automatic switching method led by a handheld terminal and based on visual target recognition and boundary monitoring, which enables seamless interaction across screens and hosts.

[0004] 2. Technical Solution A multi-host automatic switching spatial interaction control method, applied to a handheld intelligent pointing remote control terminal, includes: Pre-stored target configuration set: includes the correspondence between target ID, homography mapping relationship, normalized boundary threshold, and receiver ID; During normal operation: The RGB camera is turned off, and the normalized coordinates of the current target are obtained through infrared positioning and sent to the bound receiver; Monitoring steps: Real-time determination of whether the coordinates have entered the inward shrinkage threshold area of ​​the current target boundary; Switching steps: When the coordinates enter the threshold area, the RGB camera is activated to identify the new target, the communication link is switched to the new receiver according to the target configuration set, and the new target mapping relationship is applied.

[0005] 3. Preferred Solution The center wavelength of the first band visible light laser is 630-670nm (preferably 650±10nm), and the center wavelength of the second band infrared laser is 800-940nm (preferably 850±10nm). The narrowband infrared camera filter has a bandwidth of ±10nm, and the center wavelength deviates from the infrared laser by ≤5nm. The target objects include planar display surfaces, 3D models, and motion devices, and the corresponding outputs are 2D coordinates or 6DoF poses; The switching process requires no manual pairing, network configuration, or host-side software intervention. The terminal does not rely on external visual acquisition equipment or positioning base stations.

[0006] 4. Beneficial effects Seamless switching: Boundary-triggered visual re-recognition automatically switches links without manual intervention; Zero configuration: No host software required, plug and play; Low latency: 2.4G link switching is in the millisecond range, with no reconnection handshake process; Accurate discrimination: Based on normalized boundary thresholds, avoiding false cuts; High compatibility: Compatible with any brand of host; simply insert the receiver to bind. Attached Figure Description

[0007] Figure 1 : Schematic diagram of multi-host switching control process; Figure 2 : Schematic diagram of the target configuration set data structure; Detailed Implementation

[0008] Example 1: Three-screen command scenario The intelligent pointing remote control has pre-stored left / center / right screen configurations (mapping relationships, boundary thresholds, receiver IDs).

[0009] Normal state: The light spot moves within the central screen, and its coordinates are continuously sent to the central screen host; Monitoring: The light spot enters 10% of the area within the right boundary of the middle screen, triggering the monitoring condition; Switching: RGB camera wake-up, recognizes the outline of the right screen (ratio > 60%), automatically switches the 2.4G link to the right screen receiver, and applies the right screen mapping relationship; Recovery: Subsequent coordinates are sent to the right-screen host, RGB is turned off.

[0010] Example 2: Sand table + large screen hybrid scene The target configuration set includes: digital sandbox (3D model mapping) and large screen (planar mapping).

[0011] When the light spot moves from the sand table to the boundary of the large screen, RGB identifies the target on the large screen, switches the link to the large screen host, and outputs the planar coordinates.

Claims

1. A spatial interaction control method with automatic switching between multiple hosts, applied to a handheld intelligent pointing remote control terminal, characterized in that, include: A pre-stored target configuration set, including the correspondence between target ID, homography mapping relationship, normalized boundary threshold, and receiver ID; During normal operation, the RGB camera is turned off, and the normalized coordinates of the current target are obtained through infrared positioning and sent to the bound receiver. Monitoring steps: Real-time determination of whether the coordinates have entered the inward shrinkage threshold area of ​​the current target boundary; Switching steps: When the coordinates enter the threshold area, the RGB camera is activated to identify the new target, the communication link is switched to the new receiver according to the target configuration set, and the new target mapping relationship is applied.

2. The method according to claim 1, characterized in that, The center wavelength of the first band visible light laser is 630-670nm, and the center wavelength of the second band infrared laser is 800-940nm.

3. The method according to claim 1, characterized in that, The target object includes at least one of a planar display surface, a three-dimensional model, and a motion device, and outputs 2D coordinates or 6DoF pose.

4. The method according to claim 1, characterized in that, The switching process requires no manual pairing, network configuration, or host software intervention.

5. The method according to claim 1, characterized in that, The terminal does not rely on external visual acquisition equipment or positioning base stations.

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