Piezoelectric self-generated energy acquisition and illumination device for asphalt concrete pavement

Abstract

The invention discloses a piezoelectric self-generated energy acquisition and illumination device for an asphalt concrete pavement. A piezoelectric self-generating unit is laid below the asphalt concrete pavement, electric energy is generated by using the vibration energy or the squeezing energy of vehicles, the electric energy is supplied to an energy storage device for storage and utilization, and finally the electricity energy is supplied to a road illumination device through a power supply management system and is used as working energy. The device comprises the piezoelectric self-generating unit (1), an energy acquisition device (2), a DC-DC conversion device (3), the energy storage device (4), a power supply monitoring and management system (5) and the road illumination device (6), wherein the unit, the devices and the system are sequentially connected through conducting wires. The energy storage device is monitored by the power monitoring and management system in real time. Regulation is conducted according to the monitored working state of the energy storage device, so proper voltage and current are supplied to the road illumination device. The invention effectively solves the difficulty that the power supply to urban and rural road lamps is inconvenient, and has the advantages of energy saving and environmental protection.

Description

technical field [0001] The invention relates to a piezoelectric self-generating energy collection and lighting device for asphalt concrete pavement. By laying piezoelectric self-generating units under the asphalt concrete pavement or directly using piezoelectric materials as road surface components, vehicle vibration or Squeezing energy produces electricity. Background technique [0002] At present, on the one hand, traditional energy sources such as coal and oil are constantly scarce, and on the other hand, with the continuous rise of energy prices, electric energy is very precious. Usually, street lights, signal lights and other lighting fixtures used on roads are powered by AC power grid. Since the power grid is mainly medium and low voltage, the power loss for the long-distance low-voltage power grid is astonishing. [0003] Potentially available environmental energy sources include: solar energy, wind energy, etc. Abundant solar energy is an inexhaustible, pollution-...

AI Technical Summary

Problems solved by technology

However, at present, there are deficiencies in the complex lighting requirements, large footprint, low photoelectric conversion rate, and high cost of photovoltaic power generation.

As for wind power generation, t

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