DATA COMPRESSION METHOD FOR WIRELESS GEOMAGENTIC VEHICLE DETECTION SIGNALS

The present invention provides a data compression method for wireless geomagnetic vehicle detection signals, and includes the following steps: comparing a result digital signal of each sampling point with a threshold band and an adjacent result digital signal, and encoding a comparison result to gen...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	YU Qiangguo
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS BASIC ELECTRONIC CIRCUITRY CODE CONVERSION IN GENERAL CODING DECODING ELECTRICITY MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The present invention provides a data compression method for wireless geomagnetic vehicle detection signals, and includes the following steps: comparing a result digital signal of each sampling point with a threshold band and an adjacent result digital signal, and encoding a comparison result to generate a detection result. According to the present invention, compared with original waveform data, the amount of data is greatly reduced, which is only 1/8 of the original waveform data, thus reducing the amount of data transmitted by wireless vehicle detection nodes and lowering the power consumption of nodes. By comparing values of each sampling point with the threshold band and the adjacent sampling point, a change trend is taken, which is simple in implementation and small in the amount of calculation, reducing the hardware requirements and saving the hardware cost.