Construction Machine Braking Control for Collision Prevention
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Solution Overview
Problem
Existing construction machines are unable to effectively prevent dangerous situations, such as collisions with people or objects, despite being able to detect their presence.
Innovation Solution
A construction machine equipped with a controller that performs braking control of actuators based on information from various sensors and a database to prevent dangerous situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If construction machines are equipped with detection devices to identify people and objects in surrounding areas, then the ability to detect presence is improved, but the capability to prevent dangerous situations remains insufficient
Solution Approach 1:
The system performs preliminary actions by determining the next motion of the construction machine before execution and identifying potential dangerous situations in advance. The controller predicts future states and takes preventive braking control actions before collisions occur, rather than merely detecting presence and reacting afterward.
Solution Approach 2:
The system implements feedback by continuously monitoring the operating state of the construction machine, comparing it with database information about dangerous situations, and adjusting control actions based on this feedback loop. The controller receives detection information, processes it through comparison with stored data, and generates appropriate braking control commands.
2Reliability
If the system performs braking control to prevent dangerous situations, then safety is improved, but the complexity of the control system increases
Solution Approach 1:
The controller performs multiple functions: it manages normal operation of the construction machine, processes detection information from various sensors, compares operating states with database information, determines next motions, and executes braking control. This multi-functionality reduces the need for separate dedicated safety systems.
Solution Approach 2:
The system uses its own operating state information and stored database information to autonomously determine dangerous situations and execute protective braking control without requiring external intervention. The construction machine essentially monitors and protects itself through the controller's integrated safety functions.
Data Source
AI summary
A construction machine includes a travel actuator, an attachment actuator, a storage, an information obtaining device, and a hardware processor configured to perform braking control of at least one of the travel actuator and the attachment actuator in response to determining that a dangerous situation is going to occur based on information obtained by the information obtaining device and information stored in a database in the storage.