Dynamic Dead Zone Adjustment for Mobile Body Control
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Solution Overview
Problem
Maneuvering devices, such as those using touch sensors like tablets, are prone to unintended input operations due to disturbances, leading to instability in controlling mobile bodies like underwater cruising vehicles.
Innovation Solution
A maneuvering device with a calculator that processes input information to simulate a dead zone effect, adjusting its range based on detected movement parameters, thereby reducing unintended input influences by filtering errors and stabilizing operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a touch sensor (two-dimensional pointing device) such as a touch panel and a touchpad is used as the input device, then multiple operation instructions can be input through a single operation, but the possibility of unintended operations increases due to disturbance and the device not being fixed
Solution Approach 1:
The patent changes the parameter of dead zone range dynamically based on the mobile body's speed. When the mobile body is stationary or moving slowly, a larger dead zone is applied to filter out disturbance-induced unintended inputs. When the mobile body is moving quickly, the dead zone is reduced to allow more responsive control. This parameter adjustment resolves the contradiction by adapting the input filtering strength to the operational context.
2Reliability
If the dead zone range is fixed to filter unintended inputs, then input stability improves, but legitimate small-magnitude operations may be blocked
Solution Approach 1:
The patent makes the dead zone range dynamic rather than fixed. The calculation unit continuously adjusts the dead zone size based on real-time speed information from the detection unit. This dynamic adaptation allows the system to maintain input stability when needed (larger dead zone at low speeds) while preserving sensitivity for legitimate operations (smaller dead zone at high speeds), thus resolving the contradiction between reliability and adaptability.
Data Source
AI summary
Provided is a maneuvering device including: an input device (101) configured to detect an input operation for instructing movement of a mobile body to generate input information, a calculator (11) configured to change the input information so as to acquire an effect equivalent to a case in which a dead zone is set to the input operation, to thereby generate changed input information; and a controller (103) configured to control the movement of the mobile body (100a) based on the changed input information. The calculator is configured to change a range of the dead zone in accordance with a detection parameter detected in relation to the movement of the mobile body.