Systems and methods for shared parking permit violation detection

A non-transitory computer-readable medium having stored thereon program instructions for determining a shared parking permit violation by a mobile parking enforcement device, the mobile parking enforcement device comprising:

• a wireless interface for communicating wirelessly with a parking enforcement server;
• a data interface for communicating with parking data acquisition hardware to receive therefrom parking data;
• a processor in communication with the wireless interface and the data interface;
• and
• computer-readable memory in communication with and accessible by the processor,
• the program instructions executable by the processor to perform:
• transmitting, via the wireless interface, a geographic location of the mobile parking enforcement device to the parking enforcement server;
• receiving, via the wireless interface of the mobile parking enforcement device, a set of one or more past parking events from the parking enforcement server, each past parking event in the set of one or more past parking events comprises a vehicle identifier, the set of one or more past parking events received from the parking enforcement server corresponding to one or more past parking events identified by the parking enforcement server as occurring in a parking zone associated with the geographic location of the mobile parking enforcement device;
• receiving, via the data interface, current parking data comprising a first vehicle identifier of a first vehicle from the parking data acquisition hardware to generate, at the processor, a current parking event comprising the first vehicle identifier of the first vehicle;
• searching, by the processor, for the first vehicle identifier in a permit list stored in the computer-readable memory of the mobile parking enforcement device, and identifying, at the processor, a shared parking permit associated with the first vehicle identifier, the shared parking permit further associated with at least a second vehicle identifier of a second vehicle different from the first vehicle;
• searching, by the processor, in past parking data comprising the set of one or more past parking events to obtain, at the processor, a particular past parking event comprising the second vehicle identifier;
• determining, at the processor, that a shared parking permit violation has occurred based on the current parking event with the first vehicle identifier and the particular past parking event with the second vehicle identifier;
• and
• storing a violation event for the shared parking permit violation in computer-readable memory.