Ophthalmic Apparatus PDA Wireless Display Adaptation
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Solution Overview
Problem
Existing ophthalmic diagnostic systems lack efficiency in eye examination processes due to inadequate adaptation of personal digital assistant (PDA) device displays based on the usage state of ophthalmic apparatuses, leading to inefficient eye examinations when examiners use PDA devices during eye examinations.
Innovation Solution
The ophthalmic apparatus and PDA device system wirelessly communicate to transmit moving images of the eye being examined and control signals for alignment operations, allowing the PDA device to dynamically change its display based on the ophthalmic apparatus's usage state, enhancing examination efficiency by automatically switching between examination and patient waiting screens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the PDA device display is fixed and does not adapt to the usage state of the ophthalmic apparatus, then the device complexity is reduced, but the examination efficiency and ease of operation deteriorate
Solution Approach 1:
The PDA device display dynamically changes based on the usage state of the ophthalmic apparatus. When the apparatus is in examination mode, the display shows examination-related information and controls. When in waiting mode, it shows patient information and scheduling details. This dynamic adaptation resolves the contradiction by improving examination efficiency through relevant information display without requiring complex manual configuration.
Solution Approach 2:
The system incorporates feedback mechanisms where the PDA device receives status information from the ophthalmic apparatus and automatically adjusts its display accordingly. The apparatus sends signals about its operational state (examination mode, waiting mode, alignment status) to the PDA, which then updates its display in real-time, eliminating the need for complex user intervention while maintaining high efficiency.
2Ease of operation
If real-time communication and display switching are implemented, then the ease of operation is improved, but the loss of time and energy consumption increase
Solution Approach 1:
The system performs preliminary actions by pre-configuring display modes and communication protocols. The PDA device is pre-programmed with the capability to automatically switch between examination and waiting screens based on apparatus status. Alignment operations are prepared in advance with predetermined parameters, allowing rapid execution without real-time complex calculations, thus reducing communication time while maintaining ease of operation.
Solution Approach 2:
The communication between the ophthalmic apparatus and PDA device operates continuously in the background, maintaining connection status and automatically updating displays without interrupting the examination flow. The system keeps the communication channel open for status exchange, ensuring that when mode changes are needed, the transition is instantaneous rather than requiring re-establishment of communication, thereby minimizing time loss.
3Extent of automation
If the PDA device automatically detects and responds to apparatus usage state, then the extent of automation is improved, but the device complexity and measurement precision requirements increase
Solution Approach 1:
The PDA device serves multiple functions: it acts as a display unit, communication interface, control device, and status detector all in one. The same PDA hardware and software handle both examination mode monitoring and waiting mode patient information display, eliminating the need for separate dedicated systems. This multi-functionality achieves high automation while controlling overall system complexity.
Solution Approach 2:
The system uses standardized communication protocols and interface signals as intermediaries between the ophthalmic apparatus and PDA device. Rather than requiring complex direct integration, the apparatus sends standardized status signals through the communication interface, and the PDA interprets these signals to automatically switch displays. This intermediary approach simplifies the detection and control complexity while maintaining high automation.
4Measurement precision
If alignment operations are performed in real-time during transmission, then the measurement precision is improved, but the loss of time increases
Solution Approach 1:
Alignment operations are performed in advance before the main examination begins. The system conducts preliminary alignment measurements and adjustments while the patient is being positioned, and only after alignment is confirmed does it proceed to the main examination data acquisition. This preliminary action ensures high measurement precision without adding significant time during the actual examination process.
Solution Approach 2:
The alignment process operates continuously in the background during patient positioning and apparatus setup, rather than being a separate discrete step. Alignment sensors continuously monitor and adjust the apparatus position relative to the patient's eye, maintaining continuous useful action that ensures precision without creating noticeable interruptions or delays in the overall examination timeline.
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
This solution improves the efficiency of eye examinations by enabling real-time alignment operations and efficient data transmission between the ophthalmic apparatus and PDA device, ensuring accurate and efficient eye examination processes without requiring complex screen navigation by the examiner.
Implementation Method 1
an image-capturing unit that obtains a moving image of an eye to be examined based on light returned from the eye to be examined which is illuminated
Data Source
AI summary
An ophthalmic apparatus is capable of communicating with a PDA device provided with a display unit and includes a main body that includes an image-capturing unit, the image-capturing unit obtaining a moving image of an eye to be examined (target eye) based on light returned from the target eye which is illuminated, the moving image of the target eye used by the ophthalmic apparatus for obtaining, based on an examination of the target eye, information regarding the target eye, a driving unit that drives the main body, a transmission unit that transmits, before the information regarding the target eye is obtained, a moving image signal of the obtained moving image to the PDA device, a reception unit that receives a control signal from the PDA device during transmission of the moving image signal, and a control unit that controls the driving unit based on the received control signal.