The research and implementation of GPS intelligent transmission strategy based on on-board Android smartphones

Abstract

Smartphones have been widely integrated with GPS receiver, which may provide accurate location information of vehicles without cost increase. Traditionally, LBS applications obtain vehicle locations then using the Hypertext Transfer Protocol (HTTP) protocol uploaded to central servers with a fixed frequency. In this paper, we exploit an intelligent strategy of GPS sensing and transmitting. Explicitly, we implemented a platform to collect real-time GPS data from vehicles. A common Android Smartphone serves as a GPS sensor in a vehicle. Client Application software is designed to generate GPS location updates with adaptive time stamps once it executed. In the final comparison, MQTT push technology is introduced into GPS transmission in order to effectively reduce mobile traffic.

Sistem Pemantauan Kadar Gas pada Tambang Batubara Berbasis IoT Menggunakan Teknologi Komunikasi LoRa

“…Sistem posisi u-Blox 6 yang memiliki 50 kanal menawarkan Time-To-First-Fix (TTFF) dalam waktu di bawah 1 detik. Di mesin akuisisi, dengan 2 juta korelator, mampu melakukan pencarian waktu/frekuensi ruang paralel yang masif, memungkinkannya menemukan satelit secara instan [9]. Untuk blok diagram dari Modul NEO-6M dapat dilihat pada Gambar 3.…”