Remote-Controlled Traffic Robot for School Zone Safety
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Solution Overview
Problem
School zones and work zones face safety challenges due to young crossing guards controlling vehicle traffic and pedestrians, with high pedestrian fatalities and injuries, exacerbated by driver distractions.
Innovation Solution
A portable, remotely controlled traffic and pedestrian management system comprising a robot with signage, motor assembly, sensors, and a controller for safe traffic control and pedestrian guidance, using solar panels, LED lights, and digital cameras for enhanced awareness and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If young crossing guards are used to control traffic, then pedestrian crossing assistance is provided, but safety risks increase due to exposure to vehicle traffic and driver distractions
Solution Approach 1:
The patent introduces a robot as an intermediary device between pedestrians and vehicle traffic. The robot wears a high-visibility vest and holds a flag, serving as a mediator that can control traffic without being vulnerable to the same safety risks as human crossing guards. The robot can be positioned in the road to stop traffic while the operator remains safely behind the crosswalk.
Solution Approach 2:
The patent replaces the human crossing guard system with an automated robot system. The robot incorporates visual signals (flag, LED lights), audible signals (speaker), and automated movement capabilities to perform traffic control functions that were previously performed manually by human crossing guards.
2Adaptability or versatility
If crossing guards control both pedestrians and vehicle traffic, then comprehensive traffic management is achieved, but the situation becomes more dangerous due to multiple distractions
Solution Approach 1:
The patent segments the traffic control functions into distinct components: visual signals (flag, LED lights on robot and pedestrian crossing signals), audible signals (speaker on robot), and automated control. This segmentation allows each function to be optimized independently and reduces the cognitive burden on the operator.
Solution Approach 2:
The robot is designed with multi-functionality to handle various traffic control scenarios. It can display different flag positions (horizontal for stop, vertical for go), activate different LED light patterns, and provide audible warnings. The system can also control pedestrian crossing signals to coordinate with vehicle traffic control.
3Loss of information
If traditional flag-based traffic control is used, then driver attention is captured, but the crossing guard remains vulnerable to accidents
Solution Approach 1:
The patent adds spatial dimensionality to the traffic control system by positioning the robot in the road (horizontal dimension) while keeping the operator behind the crosswalk (protected dimension). The robot extends the operator's control reach into the traffic lane without exposing the operator to the same risks.
Solution Approach 2:
The patent utilizes color changes through LED lights on the robot and pedestrian crossing signals to communicate traffic control status. Red LED lights indicate stop for vehicles, green LED lights indicate go for pedestrians, providing clear visual information that complements the flag signals and enhances driver and pedestrian awareness.
Data Source
AI summary
A movable robotic-like assembly which includes an upper body portion, a base portion and a wheel assembly for supporting the base portion and for moving the movable assembly. Signage is provided in the upper body portion, featuring instructions in a first portion for vehicles, including a stop indication, and signage in a second portion approximately 90° from the previous portion for pedestrians waiting to cross the street in which vehicles are traveling. A motor assembly drives the wheel assembly. A controller separate from the moving assembly remotely controls the movement and the operation of the movable assembly.