Inertial-Sensor Control Device for Blind Radiotherapy Operation
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Solution Overview
Problem
Current radiotherapy devices require visual confirmation to operate mechanical toggle buttons, making blind operations difficult, and are prone to mechanical failures, with large control devices and high costs.
Innovation Solution
A control device using inertial sensors to control motion states of radiotherapy components based on tilt direction and angle, eliminating the need for visual confirmation and mechanical components, reducing device size and increasing reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If mechanical toggle buttons are used for control, then the control device can be operated, but visual confirmation is required and mechanical failures occur
Solution Approach 1:
The patent replaces mechanical toggle buttons with an inertial sensor-based control system. The inertial sensor detects tilt direction and angle to control radiotherapy device components, eliminating the need for visual confirmation and removing mechanical moving parts that are prone to failure. This substitution of mechanical system with sensor-based system directly resolves the contradiction by enabling blind operation while improving reliability.
2Ease of operation
If traditional control devices are used, then control functionality is provided, but device volume is large and cost is high
Solution Approach 1:
The patent extracts the essential control function from the traditional bulky control device. By removing mechanical buttons, switches, and associated hardware, the system retains only the necessary inertial sensor and processing units, dramatically reducing the control device volume while maintaining full control functionality through tilt-based input.
Solution Approach 2:
The inertial sensor serves multiple functions: it detects tilt direction, measures tilt angle, and provides control input all through a single sensor component. This multi-functionality replaces what would traditionally require separate mechanical components, further reducing device volume while maintaining comprehensive control capabilities.
3Measurement precision
If visual confirmation is required for operation, then operational precision can be maintained, but blind operation becomes difficult
Solution Approach 1:
The control system serves itself by using the inertial sensor to automatically detect user intent through tilt direction and angle, eliminating the need for visual feedback or confirmation. The system translates physical tilt movements directly into control commands, maintaining operational precision while enabling blind operation through self-contained sensor-based detection.
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 convenient and accurate blind operation of radiotherapy devices with reduced mechanical failures and lower costs by using inertial sensors to control motion states.
Implementation Method 1
an inertial sensor configured to obtain a tilt state of the control device, wherein the tilt state includes a tilt direction and a tilt angle
Data Source
AI summary
The present disclosure may relate to methods and systems for controlling a medical device. The method may include: obtaining a first user input; determining whether the first user input satisfies a trigger condition; in response to determining that the first user input satisfies the trigger condition, causing a control device to enter a control state; obtaining a tilt state of the control device; and controlling, based on the tilt state, a motion state of at least one component of the medical device.