Imaging Apparatus Antenna Array Directional Control
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Solution Overview
Problem
Existing wireless systems lack an efficient method for dynamically switching connections between multiple wireless terminals based on operator instructions, particularly in systems that require precise directional control and real-time identification of terminal positions.
Innovation Solution
An imaging apparatus equipped with an array antenna, display unit, and control units that capture images, detect signal strength, and calculate relative angles to display terminal information, allowing for operator-driven switching of wireless connections by transmitting control data to adjust antenna directionality and manage terminal connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an array antenna is used to detect terminal positions and control directionality, then the precision of terminal identification and positioning is improved, but the device complexity increases
Solution Approach 1:
The array antenna is divided into multiple antenna elements that can be independently controlled. Each element contributes to the overall beamforming capability, allowing precise directional control without requiring a single complex antenna structure. The segmentation of the antenna array enables independent phase and amplitude control of each element, achieving high measurement precision while managing system complexity through modular architecture.
Solution Approach 2:
A signal processing unit acts as an intermediary between the array antenna elements and the control system. This intermediary processes the signals from multiple elements, performs beamforming calculations, and determines terminal positions. By introducing this intermediate processing layer, the system achieves high positioning precision while isolating the complexity of array signal processing from both the antenna hardware and the user interface.
2Reliability
If real-time detection of reception strength and calculation of relative angles is performed, then the reliability of wireless connection switching is improved, but the loss of time for data processing increases
Solution Approach 1:
The system continuously detects reception strength and calculates relative angles in advance, maintaining an updated database of terminal positions and signal characteristics even when no connection switching is requested. This preliminary action ensures that when connection switching is needed, the processing time is minimized because the data is already prepared and stored, thus improving reliability without significant time loss.
Solution Approach 2:
The detection and calculation processes operate continuously rather than intermittently. The reception strength detection and relative angle calculation are performed ongoing, ensuring that the system always has current information about terminal positions and signal quality. This continuous operation maintains high reliability for connection switching while distributing the processing load over time, preventing large time losses during actual switching events.
3Ease of operation
If terminal information is displayed superimposed on the image at estimated positions, then the ease of operation for selecting terminals is improved, but the device complexity increases
Solution Approach 1:
The system creates a visual copy of the physical terminal positions by displaying terminal information superimposed on the captured image at the corresponding estimated positions. This graphical representation copies the spatial relationships from the real world into the display, allowing users to easily identify and select terminals by their visual location rather than dealing with abstract identifiers. The copying approach simplifies user interaction while the complexity is confined to the automatic position calculation and display rendering functions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables seamless and operator-controlled switching of wireless connections between terminals, improving the flexibility and efficiency of data communication by providing real-time identification and positioning of wireless terminals, thus enhancing the usability of wireless systems.
Implementation Method 1
the antenna may be an array antenna that is comprised by a plurality of antenna elements, and the antenna control unit may control directionality by changing a phase of a signal to be applied to the antenna element
Data Source
AI summary
An imaging apparatus includes an imaging unit, a display unit, an antenna, an antenna control unit, a wireless unit, a reception strength detection unit, an identification information extraction unit, a recording control unit, a recording unit, a relative angle extraction unit, an estimated position calculation unit, a display control unit, an instruction input detection unit, and a wireless connection switching control unit.