Sunpower Corporation

Streetline Networks

Enphase Energy, Inc.

Streetline Inc.

Jan Mark Noworolski

David L Klein

Tod A Dykstra

Shih Yu Cheng

Scott Dykstra

James E Reich

Naim Busek

Rebecca E Agrait

Peter K Leiser

Erica C Davis

In one embodiment, a solar cell installation includes several groups of solar cells. Each group of solar cells has a local power point optimizer configured to control power generation of the group. The local power point optimizer may be configured to determine an optimum operating condition for a corresponding group of solar cells. The local power point optimizer may adjust the operating condition of the group to the optimum operating condition by modulating a transistor, such as by pulse width modulation, to electrically connect and disconnect the group from the installation. The local power point optimizer may be used in conjunction with a global maximum power point tracking module.

Localized power point optimizer for solar cell installations

A real-time wireless parking enforcement system is provided that includes a remote parking enforcement system having a plurality of parking sensors disposed to gather parking occupancy data and at least one source of parking payment data, where the parking occupancy data and parking payment data is communicated to a central server in real-time, and a plurality of wireless mobile platforms are operated by a plurality of parking enforcement officers (PEO's). The wireless mobile platforms send and receive real-time and continuous parking occupancy data and parking payment data to and from the central server, where bidirectional communication exists between the central server and the wireless mobile platforms. When the PEO enters response information to a potential violation to the wireless mobile platform, the bidirectional communication updates the status of the potential violation to all the wireless platforms in real-time, where the information is used to reduce enforcement redundancies by the PEO's.

Mobile parking enforcement method

A remote parking meter monitoring system is provided. The system has a plurality of radio transceivers. Each transceiver communicates with at least one other transceiver within a transceiver communication region. The transceivers are integrated to parking meters. A separate aggregate point has a transceiver and a communication network that is connected to a computer. The aggregate point communicates with at least one proximal transceiver and communicates to the computer through the network. The system has a mesh communication arrangement, and a signal routing architecture, where the information is communicated along any path of adjacent communication regions. The computer is able to communicate information through the network to the aggregate point, and the aggregate point transceiver sends the information to the proximal transceiver. The information is communicated to any one of the transceivers in the mesh using the routing architecture by communicating the signal through any path between adjacent communication regions.

Remote parking meter auditing module

A real-time parking activity measurement system comprising multiple, self-powered, mesh networked wireless vehicle sensors, a collection device, and a host computer. The wireless mesh network architecture allows the wireless vehicle sensors to be more reliable and to be more energy efficient by at least an order of magnitude compare to traditional wireless point-to-point and star-topology architectures. This architecture also enables the expansion of the measurement area without any additional infrastructure besides the necessary addition of wireless vehicle sensors.

Wireless mesh network parking measurement system

Growing community of inventors

Burlingame, CA, United States of America

Jan Mark Noworolski