Offline Method to Determine Location of a Vehicle Using Mobile Phones
a vehicle location and mobile phone technology, applied in the field of offline method can solve the problems of vehicles also being often delayed, vehicles are more difficult for passengers to determine the current location of the vehicle in a journey, and gps based solutions come with a cos
Active Publication Date: 2021-01-21
GOOGLE LLC
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Benefits of technology
This patent describes a method and system that allows a user to select a specific vehicle and determine if they are inside or outside the vehicle by using the route information for the vehicle. The route information is stored in the user's mobile device and can be updated when the user is not traveling and connected to internet. The system also converts the publicly known route information into a form that enables efficient projection of a cell tower location onto the selected route. This allows the user to accurately determine their location by connecting to different cell-towers along the route. The method and system are done offline without needing internet or GPS by storing all the relevant data needed within the mobile device. This technology simplifies the process of determining a user's location in a public transport system and provides a more accurate representation of their journey.
Problems solved by technology
Furthermore, in many countries like India, the public transport like trains and buses have overnight journeys, which makes it more difficult for the passenger to determine the current location of the vehicle in a journey.
Moreover, these vehicles also get often delayed and don't run as per the known schedule which makes it even more important for passengers to know real-time location of the vehicle and plan accordingly.
However, in mobile phones, GPS based solutions do come with a cost.
They need lot of power and drain the battery very fast.
This is because GPS is a very slow communication channel.
It need to communicate with 3 or 4 satellites for an extended duration at nearly 50 bits per second that puts a huge load on the battery life of the mobile phone and particularly when a user is in a long-distance public transport where battery charge is vital, it is not viable to use GPS continuously to monitor location.
The other problem with GPS solutions is relating to the locking of the GPS signal.
This part takes several seconds and sometimes even fails from specific locations in closed environments inside the vehicle.
However, this method too has several limitations.
However, the bigger problem with this approach is the availability of a live internet connection on the mobile phone, which is often not feasible due to several reasons.
Firstly, the area traversed by the vehicle may not have good internet connectivity, which is quite common in remote locations or lesser-developed nations.
Secondly, this approach also puts a high load on the battery life since the mobile phones have to do the work of transferring data to and fro the cell towers.
Lastly and more importantly, there is usually no reliable website in the internet that may provide the accurate real-time location for the particular vehicle that the user is travelling.
Though the above offline method provides the real-time location of the vehicle for a passenger inside a vehicle without needing Internet or GPS, it does not work if a person is outside the vehicle and still wants to find the real-time location of that vehicle.
Method used
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[0025]The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments and detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
[0026]As mentioned above, there is a need to develop a technique that enables users inside a vehicle to find the location of the vehicle using mobile devices without the overhead of GPS or internet especially during commuting in public transport. The embodiments herein achieve this by locating cell towers around the route of the vehicle select...
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The present invention provides a method for determining real-time location of a vehicle using a mobile device without GPS for the user travelling inside the vehicle. According to the embodiment of the present invention, the location of the vehicle is determined using the locations of the cell-towers to which a mobile phone of a user is connected, and projects these cell tower locations onto the selected route of the user journey to obtain a closest point and thereby determining the user location. The invention also provides the real-time location of the vehicle over internet to users outside the vehicle by crowd-sourcing the cell-tower data of the passengers inside the vehicle.
Description
FIELD OF INVENTION[0001]The embodiments herein generally relates to a method and system of finding approximate location of a vehicle for a user using his / her mobile device. The invention is specifically applicable when a user travels in public transport where the set of routes and schedules are publicly known, and the user would like to view the dynamic location of a vehicle with or without the need of Internet.BACKGROUND AND PRIOR ART[0002]Passengers travelling in public transports have great tendency to frequently know the location of the vehicle with respect to the journey. In many countries, the exact location of the vehicle is not displayed to the passengers in the vehicle. Furthermore, in many countries like India, the public transport like trains and buses have overnight journeys, which makes it more difficult for the passenger to determine the current location of the vehicle in a journey. Moreover, these vehicles also get often delayed and don't run as per the known schedule...
Claims
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IPC IPC(8): H04W4/029H04W4/02
CPCH04W4/029H04W84/042H04W4/023G08G1/123H04W64/00G01S5/14G01S5/02695G01S5/0295
Inventor MOHAIDEEN PATHURUDEEN, AHMED NIZAMVENKATARAMAN, SASHIKUMARSUNDARAM, MEENAKSHIRAJENDRAN SURIYAKALA, BALASUBRAMONIAMNAGARAJAN, ARUN KUMAR
Owner GOOGLE LLC
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