Abstract: The following are disclosed: Vehicle parking detection, sensors and an On-Board Device (OBD) to create a parking session. Radars, microwave antennas, rechargeable power supplies and their power management circuits. A localized communications protocol between the wireless nodes and repeaters within a wireless network is disclosed. Wireless sensors and wireline sensors. The networks and/or systems may support parking spot management/monitoring, vehicle traffic analysis and/or management of stationary and/or moving vehicles, monitor storage areas and/or manage production facilities. These networks and/or systems may be operated to generate reports of incorrectly parked vehicles, such as reserved parking spots for other vehicles, vehicles parked in multiple parking spots and/or overstaying the time they are permitted to park.

Abstract: An access point and a sensor node are disclosed for use within a wireless sensor network. The wireless sensor network includes at least one access point adapted to securely communicate with at least one of the sensor nodes using an encryption mechanism that uses a nonce and an encryption key to encrypt the plaintext at the sensor node to create the cipher text included in the data payload of a message sent to the access point. The sensor node does not send the nonce. The access point uses the same nonce to decipher to the received message's data payload, but generates the nonce internally without receiving it from the sensor node.

Abstract: This application discloses using multiple wireless vehicular sensor nodes to wirelessly receive multiple, time-synchronized vehicular waveform reports from the nodes to create a time synchronized system report, and preferably a time synchronized vehicular report. Each vehicular waveform report approximates a raw vehicular sensor waveform observed by a magnetic sensor at the node based upon the presence of a vehicle. The vehicular waveform reports, the time-synchronized system report, and the time synchronized vehicular report are products of this wirelessly receiving process. Also disclosed are apparatus supporting the above outlined process. Reception of the vehicular waveform reports may be time interleaved.