Remote Vehicle Support With Diagnostic Safety Dongle Control
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Solution Overview
Problem
Existing remote support systems using mobile terminals for vehicles face issues of unintended behavior due to system abnormalities, necessitating operators to remain near the vehicle during remote operation, compromising convenience.
Innovation Solution
A safety device, or dongle, is physically connected to the mobile terminal, exchanging diagnostic signals with the vehicle to detect abnormalities, allowing or preventing traveling control based on the integrity of these signals, thereby enabling remote support without requiring the operator's presence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an emergency stop switch is provided in the mobile body to prevent unintended behavior when an abnormality occurs in the operating system, then safety is improved, but the operator is required to stay in the vicinity of the mobile body during remote operation, reducing convenience
Solution Approach 1:
A safety device is introduced as an intermediary component that is physically connected to the mobile body but can be operated remotely through the mobile terminal. The safety device includes an emergency stop function that can be activated remotely, serving as a mediator between the operator and the mobile body's safety systems. This allows the operator to maintain safety control without needing to physically presence near the mobile body.
Solution Approach 2:
The safety control function is segmented into separate components: the safety device physically connected to the mobile body contains the emergency stop mechanism, while the mobile terminal provides remote operation capability. This segmentation allows the safety function to be distributed across different physical locations, enabling remote operation while maintaining safety controls.
2Reliability
If the operator stays in the vicinity of the mobile body during remote operation, then safety is ensured through immediate response to abnormalities, but the convenience and effectiveness of remote support is reduced
Solution Approach 1:
The safety device acts as an intermediary that bridges the physical presence requirement and remote operation needs. It includes a communication interface that allows diagnostic signals to be exchanged between the mobile body and the mobile terminal, enabling the operator to monitor and control safety functions remotely without physical proximity to the mobile body.
Solution Approach 2:
The manual emergency stop mechanism is replaced with an electronically controlled system that can be activated remotely through wireless communication. The safety device includes a processor that receives control signals from the mobile terminal and automatically activates the emergency stop function, eliminating the need for mechanical manual intervention.
Data Source
AI summary
The remote support system includes a mobile body, a mobile terminal, and a safety device. The mobile terminal wirelessly transmits a control signal based on an operation input from an operator who remotely supports the mobile body to the mobile body. The safety device is physically connected to the mobile terminal and exchanges diagnostic signals with the mobile body via the mobile terminal. The mobile body executes the traveling control of the mobile body based on the control signal from the mobile terminal when the abnormality is not detected in the diagnostic signal received from the safety device via the mobile terminal, and does not execute the traveling control when the abnormality is detected.