Browse Prior Art Database

Roadway Sensor Charger Utilizing Plunger Mechanism Disclosure Number: IPCOM000238625D
Publication Date: 2014-Sep-08
Document File: 2 page(s) / 43K

Publishing Venue

The Prior Art Database


Disclosed is a method to recharge or provide additional power to smart roadway sensors using resistance provided by a plunger mechanism.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 65% of the total text.

Page 01 of 2

Roadway Sensor Charger Utilizing Plunger Mechanism

Roadway systems become increasingly interconnected and intelligent and require a greater number and variety of sensor technologies. Sensors and other remote technology components require power. Providing each sensor with a power source is not cost-effective.

A method is needed to provide power to sensors along the roadway in a cost effective manner.

The novel contribution is a built-in mechanism that uses passing automobiles to power/charge the sensors via resistance as a vehicle drives over the sensor. This approach uses existing traffic to charge or provide near-field power to roadway sensors, eliminating the need for an external power supply. A resistance plunger action provides a resistance charge to a roadway sensor when driven over. Sensors can receive incremental charges and multiple sensors can share one power source . It is an opt-in system, perhaps allowing incentives for participants.

The sensor has a plunger-like action. When the plunger is depressed, it provides a resistance charge to a small battery, thus charging the battery and providing the sensor

with a charge. These plunger-like sensors are placed on the road, either in the driving lanes or in the lane reflectors, and protrude 1/4" (or some other necessary height to provide an ample resistance charge) above ground. When a vehicle passes over the sensor, it depresses that 1/4", and in doing so creates a resistance charge that can be connected t...