Abstract: A sorting method of communication data is executed by a communication apparatus including a processor. The processor sorts communication data packages according to sorting indexes by a first sorting procedure to establish a first sorting list, and determines at least one priority data package and general data packages. The processor sorts the general data packages according to the sorting indexes by a second sorting procedure to establish a second sorting list, and decodes the priority data package. After the priority data package is decoded, the processor determines whether a remaining time period of a time slot is less than an invalid time period of the time slot. If not, the processor executes a worst case. Since the processor decodes the communication data packages that have been sorted, the remaining time period of the time slot can be effectively utilized to improve an efficiency of the communication apparatus.

Abstract: An innovated SMART Parking System, PRIN System and an Information System are provided. The PRIN System is able to manage multiple parking lots without range limitation, and deeply monitor the individual parking space status and also driveway status at each parking lot upon the control devices deployed. By the bi-directional communication, the control devices are able to be managed and changed the control methodology for dynamic parking service support. Besides, the Information System can provide the real-time parking service information for either remote or local access to assist the quick parking without spending too much driving and searching time for parking. Therefore, the PRIN System and Information System facilitates the problem solving of traffic jam and difficult parking within the city effectively, and significantly reduce the social cost, vehicle emission and carbon monoxide to improve the air we breathe and city environment we care.