source:truck tracking webfleet solutions release time:2024-05-16 Hits: Popular:realtime gps tracker online
Cold start refers to the process of starting GPS in an unfamiliar environment until it contacts surrounding satellites and calculates coordinates. The following situations are considered cold start when starting up:
1. When used for the first time;
2. When the battery is depleted and the ephemeris information is lost;
3. Move the receiver over a distance of 1000 kilometers in the shutdown state.
That is to say, cold start is a mandatory start through hardware means, because the internal positioning information has been cleared by GPS since the last operation, the GPS receiver loses satellite parameters, or the existing parameters differ too much from the actual received satellite parameters, causing the navigation instrument to be unable to work. It is necessary to obtain the coordinate data provided by the satellite again. Therefore, starting the navigation from the ground database is 100% considered cold start, which is also the reason for the long time it takes to search for satellites from the ground database.
Warm start refers to a start that has been more than 2 hours since the last positioning time, and the star search positioning time is between cold start and hot start. If you have used the GPS system for positioning the day before, the first startup the next day will be considered a warm start, and the last location information will be displayed after startup. Because the latitude, longitude, and altitude were known before the last shutdown, but due to the long shutdown time, the ephemeris changed and the previous satellites could not receive it. Several satellites in the parameters have lost contact with the GPS receiver and need to continue searching for stars to supplement position information. Therefore, the search time for stars should be longer than hot start and shorter than cold start.
Hot start refers to starting the GPS system without too much movement at the last shutdown location, but the time from the last positioning must be less than 2 hours. Through software, some preparation work such as saving and closing before starting is carried out before starting.
Read recommendations:
How to help the GPS positioner help take care of the elderly and children?Car gps Solution
GPS positioning cannot break through due boundaries.gps tracker device Processing
Last article:Gps speed limiter.Gps-related knowledge of cold start
Next article:How to choose the antenna module for GPS locator?gps vehicle tracker
Related Information
4G GPS Tracker manufacture
2023-04-23Asset GPS Tracker
2023-04-11gps vehicle tracker distributors
2023-04-23obd2 tracker wholesale
2023-03-16car gps tracker Manufacturing
2023-04-23GPS Tracking price
2023-04-11airtag for dog
2023-03-164G GPS Tracker for vehicles Production
2023-04-23gps tracker app price
2023-04-11mini gps tracker sales
2023-03-16P60L Personal gps tracker
2022-06-2110000mAh Magnetic Asset GPS Tracker
2025-04-08TK08AL- RFID Car GPS Tracker
2023-10-07G200(L) -Magnet GPS Tracker
2022-06-20TK103B
2022-06-20Types of GPS
2022-07-26UUGPS positioning system
2022-09-19Introduction to GPS Positioning Principles.gps tracker no monthly fee Processing
2023-04-20What is the GPS program of Gully?
2023-02-11Where is the product advantage of the GPS positioner
2023-03-06The current status and development trend of China's car navigation industry.gps tracker for trailer
2023-05-17Design scheme of logistics tracking system
2022-11-22Beiqi Foton independently researches and develops the Internet of Vehicles system, Beidou and GPS du
2022-08-11Where are car mounted GPS locators usually installed.mini gps tracker distributors
2023-06-25Detailed introduction to GPS satellite constellation.plug & play Obd gps tracker wholesaler
2023-05-06The role of GPS satellite.GPS Tracker for vehicles manufacture
2023-04-21GPS ground control part.pet gps tracker cat supplier
2023-07-13GPS application layer.plug & play Obd gps tracker wholesale
2023-08-16What are the information methods sent by GPS reference stations.gps tracker app Manufacturing
2023-06-14How long can the historical trajectory records of the car GPS positioning system be maintained.Car g
2023-09-20