Stack Overflow
Stack Overflow

Questions tagged [gps-time]

GPS Time is an Atomic Time Scale.

Origin of this time system: 06 jan 1980 (00h 00m 00s).

Scale of this time system: SI second .

60 questions
0
votes
0 answers

GPS seconds of week to UTC time in R

I have data exported from a minimax GPS files. The GPS time exported appears to be in GPS seconds of week format and recorded every ~ 0.1 seconds. data <- structure(c(243.32, 243.33, 243.34, 243.35, 243.36, 243.37, 243.38, …
wattss
  • 61
  • 5
0
votes
0 answers

Extract Epoch Time (Unix time) from a string hhmmss

I need to obtain Epoch time from a string (received from GPS) to set my RTC. From GPS I have a string like: *timeString= 122347,other stuff,other stuff. ., other stuff.... where 12=hh, 23=mm, 47=ss I need to convert these time numbers to…
David
  • 9
  • 1
0
votes
1 answer

Reverse engineer delorme PN60w firmware to fix GPS rollover

On April 6 2019 the second rollover event occurred in the GPS system. GPS time stamps consist of a 10 bit week number and seconds into the week. The first rollover was in August 1999. I would expect that there is a constant in the firmware to…
Sherwood Botsford
  • 1,889
  • 5
  • 20
  • 35
0
votes
0 answers

How to convert hex data to decimal degree latitude and longitude?

I have been trying to decode GPS coordinates (latitude and longitude) which is in HEX format, and the documentation doesn't have a clear explanation, please help me out. I'm adding some examples below. latitude 0x414F51 = +28.758963 dd(decimal…
Navaneeth M
  • 21
  • 7
0
votes
1 answer

How to find a start and stop od a break in GPS tracker data?

I have a data from GPS tracker. Let's say something like: CREATE TABLE IF NOT EXISTS `gps_data` ( `id` int(6) unsigned NOT NULL, `speed` int(3) unsigned NOT NULL, `time` varchar(200) NOT NULL, PRIMARY KEY (`id`) ) DEFAULT CHARSET=utf8; and…
Tikky
  • 1,253
  • 2
  • 17
  • 36
0
votes
2 answers

Python - Convertion of GPS time to UTC

I have been researching everywhere for a solution to this problem. Any help would be much appreciated. I would like to take the time from the GPS data and need to convert that to a human readable format, may be like YYYY-MM-DD HH:MM:SS. Following is…
nithin ks
  • 285
  • 3
  • 11
0
votes
0 answers

GPS creating anchor point by trip mode and time

I was hoping for some help: I have 200 participants, each with their own GPS file. Each GPS file has 1000s of points, one for every 15 second epoch. I have already cleaned the data through PALMS and have brought the file into arcmap. I would like to…
user107202
  • 1
  • 2
0
votes
1 answer

Cumulative error between SYSTEM_TIME and companion computer time in Dronekit

similar to this guy, I have been trying to get GPS time from a Pixhawk into a Raspberry Pi companion computer. Before trying out the @vehicle.on_message('SYSTEM_TIME') approach, I used a wildcard to catch all messages and dumped the results into a…
armadillo
  • 3
  • 3
0
votes
1 answer

Track Gps device location on PC/server/mobile

We are trying to build a gps tracking system and I have a confusion. GPS device dosent need internet connection that's fine but how a server or pc or mobile will know a gps device location? PC/server/mobile has internet connection. Will satellite…
Avinash B
  • 11
  • 2
0
votes
1 answer

How to convert time in ms to GPS location..?

I have a problem of conversion time in ms to GPS location. While the car was in drive, sensor will send the Lat and Long, like the following: Lat : -1503044350/ms Long : 1926596112/ms How to convert this data to get lat and long from google map?
gangatharan
  • 781
  • 1
  • 12
  • 28
0
votes
1 answer

Android network provider and gps provider handling

I have done this code where I ask for updates on location.I want to know if i implemented it correctly. Once page is opened, i request for updates ( preference to network over gps)...and i display the location in function onlocationchanged. I want…
user3278732
  • 1,694
  • 10
  • 31
  • 67
0
votes
1 answer

Android network provider and gps provider returning null

I have done this code where I want to get longitude and latitude , but using both network provider and gps provider i get my location null . even if gps is enabled ... why so? boolean isGPSEnabled =…
user3278732
  • 1,694
  • 10
  • 31
  • 67
0
votes
1 answer

How to access values of a line, while reading in a text file in Java

I am trying to load in two files at the same time but also access the first gps1 file. I want to access the gps1 file line-by-line and depending on the sentence type which I will explain later I want to do different stuff with that line and then…
NJD
  • 197
  • 1
  • 4
  • 17
0
votes
1 answer

Bluetooth GPS 5Hz interface for Android

I hope this is an appropriate question for this group. It is not strictly speaking a programming question unless I end up writing my own NEMA listener instead of the location listener but that would mean a start over on a lot of code. I have…
Allen Edwards
  • 1,488
  • 1
  • 27
  • 44
-2
votes
1 answer

Accurately measuring Time for an event ( relay contact closure) using GPS PPS

I have a relay contact closure event that needs to be timestamped accurately ( 1 msec) with a GPS and the PPS output... I am not sure how to feed the relay contact output to a microcontroller and then synchronize the microcontroller clock to the GPS…
Rastin
  • 1
1 2 3
4