RU2611455C1 - Travelling vehicle positioning system - Google Patents

Abstract

FIELD: information technologies.

SUBSTANCE: in the travelling vehicle positioning system, comprising a mobile communication device located in the vehicle cab according to the invention a road sign is installed complemented with a special information panel located on a base shared with it which is marked with QR-code that contains information on longitude and latitude of the place where the road sign is installed, and at least one reference to the "Traffic Rules", conforming to interpretation of the function of the traffic sign; a mobile communication device located in the vehicle cabin, designed as a smart phone equipped with a video camera and equipped with the special software that recognizes the QR-code.

EFFECT: alternative possibility of locating the vehicle and improvement of safety of its travel.

1 dwg, 1 tbl

Description

The invention relates to the field of traffic control systems of road vehicles and can be used by car owners to obtain information about the location of the vehicle, as well as additional information necessary for driving a vehicle and its traffic safety.

The prior art device for recognizing road signs in a motor vehicle, which is configured to detect road signs present in the vicinity of a motor vehicle, and display these road signs to a driver in a motor vehicle [Application No. 2012133984 RF, IPC G08G 1/096 . Method and device for recognizing traffic signs / Roeber Mark (DE), Gunia Dirk (DE), Wei Thorsen (DE), Doerne Herald (DE); Applicant Ford Global Technologies, US (US); - No. 2012133984/11; declared 08/07/2012; publ. 02/20/2014].

The prototype adopted a method of organizing a navigation system and traffic control, in which the navigation system of the type of navigator contains a mobile device, for example, a telephone located in the driver’s cab [RF patent No. 2507583, IPC G06Q 50/00. A method of organizing a navigation and traffic management system / Belov A.B. (RU); Applicant and patent holder of the St. Petersburg State University of Architecture and Civil Engineering (RU); - No. 2012117856/08; declared 04/27/2012; publ. 02/20/2014, bull. No. 5].

The disadvantages of the analogue and the prototype is the inability to determine your vehicle location in the absence of such methods as GPS, GLONASS, or using cell towers. In addition, there is no way for a novice inexperienced driver to increase the safety of the vehicle to obtain additional information about the situation on the road, for example, to quickly obtain information about the purpose of the road sign from the "Rules of the Road" (SDA).

The problem to which the claimed invention is directed, is to provide drivers of vehicles with the opportunity to determine their location in the absence of other methods, such as GPS, GLONASS, or location using cell towers, as well as providing vehicle drivers with the opportunity to obtain additional information about situations on the road, for example, if the driver is a beginner, he can quickly receive information about the purpose of the road sign from the "Rules of the road izheniya ".

The technical result of the invention is the expansion of the technical capabilities of the system by providing the possibility of alternative location of the vehicle and increasing the safety of its movement.

This result is achieved by the fact that in the system for determining the location of a vehicle in a path containing a mobile communication device located in the vehicle’s cabin, according to the invention, a road sign installed on the road is supplemented with a special information panel located on the same base with QR a code containing information about the longitude and latitude of the place where the traffic sign is installed, and at least one link to the paragraph “Rules of the road”, the corresponding decoding destination of traffic sign; A mobile communication device located in the vehicle’s cabin is made in the form of a smartphone equipped with a video camera and equipped with special software that recognizes a QR code.

The technical result is achieved by providing the above set of signs to expand the list of functions of ordinary road signs in order to provide the possibility of automated processing of the information contained in these signs, and, as a result, to increase the safety of vehicles on the roads. Those. Using a vehicle’s positioning system in a way that contains road signs with QR codes can be very useful for determining its location. And providing drivers of vehicles with the opportunity to receive additional information about the situation on the road, for example, for novice drivers, obtaining timely information about the purpose of the road sign from the "Rules of the Road" increases the safety of vehicles on the roads.

The invention is illustrated in the drawing, which shows the layout of the information panel and its interaction with the vehicle.

The system for determining the location of a vehicle on the way contains a mobile communication device made in the form of a smartphone 1 located in the vehicle’s cabin, equipped with a video camera and equipped with special software that recognizes a QR code. A traffic sign 2 is installed in the field of view of a traffic driver by the road, supplemented by a special information panel 3 located on the same base as a QR code that contains information about the longitude and latitude of the place where the traffic sign is installed, and how at least one link to the paragraph of the “Rules of the road” corresponding to the decoding of the purpose of this road sign.

The system works as follows. The software installed in the smartphone 1 continuously analyzes the video stream received from the smartphone’s camera. As soon as a traffic sign 2 is installed in the field of view of a traffic driver, it is installed on the road, supplemented by a special information panel 3 with a QR code on it, the QR code is read from the information panel 3 using a smartphone’s video camera and decrypted using software, those. recognition of this code is performed. The information received contains the coordinates of the current location and a link to an item in the "Rules of the Road" regarding this sign. For example, this link might look like this:

57.445861, 42.152588

PDD 1.1

Here, the top line means the longitude and latitude of the current location, and the bottom line is a link to traffic rules. In the above example, PDD 1.1 refers to the description of the warning sign “Railroad crossing with a barrier”.

Using the information received, the software, depending on the user's settings, can display the current location of the vehicle on a map, show a text description of the meaning of the road sign, or duplicate it in voice.

To determine the maximum vehicle speed at which the recognition of the QR code located on the road sign is guaranteed, the following assumptions are introduced:

1. iPhone 5S is used as a model smartphone. The choice of model is due to the great demand for this model at this time and for its analog Samsung Galaxy S3, which has comparable camera characteristics (such characteristics as the sensor size and resolution = 8 megapixels, 1/3 inch (4.89 × 3.67 mm ), as well as the focal length = 4.12 mm (29.7 mm equivalent));

2. The time t, on average, spent by the smartphone on searching the QR code in the image and its recognition, is approximately 0.5-1 s. This time was obtained empirically and depends on the shooting conditions, processor characteristics, RAM size, etc.

In order to determine the maximum distance at which the QR code will be recognized, we use the following table:

To compile the table, the following pattern was used: the focal length of the lens in millimeters is approximately 1.5 times less than the distance to the QR code in meters (f: gpt / 1.5 = meters). A similar rule is used when recognizing car numbers.

Given that the focal length of the iPhone 5S camera is 29.7 mm (35 mm equivalent), we find from the table that the maximum distance L at which the QR code will be recognized is approximately 16 meters. Therefore, the maximum speed at which the recognition of the QR code is guaranteed is equal to

The obtained value of the maximum speed corresponds to the speed limits of the vehicle in the city. Those. if the car moves within the city and complies with the speed limit established by the rules of the road, the QR code on the road sign will be guaranteed to be recognized, while traffic safety will be respected.

This invention is useful in cases where there is no cellular communication or a bad signal from GPS / GLONASS satellites. It often happens that the navigator in the car starts to incorrectly give out the coordinates of the location. In these cases, the use of a vehicle positioning system in a path containing traffic signs with QR codes is very useful for determining its location. In addition, providing drivers of vehicles with the opportunity to obtain additional information about the situation on the road, for example, for novice drivers - obtaining timely information about the purpose of the road sign from the "Rules of the Road", increases the safety of vehicles on the roads.

Claims (1)

A system for determining the location of a vehicle on the road, containing a mobile communication device located in the vehicle’s cabin, characterized in that the system contains a road sign supplemented by a special information panel located on the same base as a QR code containing information about the longitude and latitude of the place where the traffic sign is installed, and at least one link to the paragraph of the “Rules of the Road”, corresponding to the decoding of the purpose of this traffic sign; A mobile communication device located in the vehicle’s cabin is made in the form of a smartphone equipped with a video camera and equipped with special software that recognizes a QR code.

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