Bicycle Magnetic Braking System for Red Light Compliance

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Solution Overview

Problem

Bicycle riders often fail to stop at red lights due to obstructed line of sight, leading to traffic accidents, as existing solutions rely on sensors that can be obstructed by other traffic or obstacles.

Innovation Solution

A bicycle system that includes a magnet adsorption device and an electromagnet emitting device at intersections, where the bicycle is attracted and stopped by a magnetic force when the stoplight is red, with a control system to manage the magnetic attraction and brake activation, ensuring the rider is prevented from crossing the intersection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a sensor is installed to recognize red traffic lights and automatically activate brakes, then traffic accident prevention is improved, but the system reliability deteriorates due to obstruction by other traffic or obstacles

Engineering Contradiction:

Improvetraffic accident preventionVSAvoidline of sight obstruction

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces electromagnetic fields as an intermediary medium between the traffic light control system and the bicycle. Instead of direct optical sensing that can be blocked, the system uses electromagnetic signals that can penetrate obstacles and communicate the stop signal to the bicycle's electromagnet device, ensuring reliable signal transmission without line-of-sight requirements

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the optical sensing mechanism with an electromagnetic field-based detection and actuation system. The optical sensor that requires clear line of sight is substituted with electromagnetic field sensors and electromagnet devices that can operate reliably even when physical obstacles block the visual path to the traffic light

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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

Effectively prevents bicycle riders from crossing intersections against red lights by using a magnetic attraction system that is not obstructed by other traffic or obstacles, enhancing road traffic safety by automatically stopping the bicycle.

Implementation Method 1

an electromagnet emitting device at intersections, where the bicycle is attracted and stopped by a magnetic force

Methodology Applied

Scientific EffectMagnetic attraction force: Magnetism

Data Source

PatentUS10984656B2Method for stopping a bicycle at a controlled intersection, bicycle system, and bicycle

Publication Date: 2021.04.20 FU TAI HUA IND SHENZHEN

AI summary

A method for stopping a bicycle at intersection, applied in a bicycle system including a signal light command device, a signal controller, an electromagnet emitting device, and a bicycle having a magnet adsorption device. The method includes controlling, by the signal controller, the electromagnet emitting device to generate magnetic attraction force when a stoplight of the signal light command device is turned on; and attracting, by the electromagnet emitting device, the magnet adsorption device of the bicycle to decelerate or stop the bicycle. A bicycle system and a bicycle are also provided.