RU2733638C1 - Vehicle speed determining system on section - Google Patents

Abstract

FIELD: measurement.

SUBSTANCE: invention relates to instrumentation and is intended for automated control over compliance with traffic rules. Vehicle speed determining system in the section consists of at least two detection video units, each of which is a monoblock, consisting of an IP camera with a function of recognizing state registration signs and a single-board transport analysis computer, which includes a computer, a data storage device, a radio modem, a GNSS receiver. At that, each recording video unit operates independently and in automatic mode performs identification of vehicles VRM, records data into an archive and transmits said data to the other recording video unit, with matching of VRM data, compares time of passage of the road section and calculates average speed of vehicle on section and detects violations of speed mode, forms evidence base, including photo and video materials, having records of the current time interval obtained during reception and processing of GNSS signals included in the system, and a payment receipt of the penalty, and transmits them through a data transmission device via a radio modem or an Ethernet network to a user server.

EFFECT: higher accuracy of system operation.

1 cl, 2 dwg

Description

The invention relates to instrumentation and is intended for automated control over the observance of traffic rules (SDA).

From the prior art, a system for controlling the speed of movement of vehicles with video recording is known (RF patent No. 107874 dated 06.04.2011, IPC G08G 1/00), containing a radar, an image acquisition and registration unit, a data control and processing unit, a data transmission facility, a power supply , source of lighting. The data transmission facility is made in the form of a radio signal transceiver. The power supply contains a battery and a control and voltage stabilization unit. The light source is additionally equipped with an on / off unit for at least one solar battery, a wind power generator, an IR light source with a control unit. The image acquisition and registration tool contains only a photo or video camera.

The disadvantages of this system are that the system does not have a module for determining time and geographic coordinates, a data transfer facility, which reduces the evidence base when registering traffic violations, and there is also no automatic generation of receipts for payment of a traffic violation fine and the formation of a database in the system.

Known device for fixing violations of high-speed traffic conditions of motor vehicles (RF patent No. 110856, IPC G08G 1/054, publ. 27.11.2011), containing at least two registrars, each of which includes at least one computer and a video camera and is made with the ability to capture an image of a vehicle, while each recorder is equipped with a global satellite navigation system receiver for communication with the global satellite navigation system and is configured to determine its geographic coordinates and time synchronization, and in addition, a computer is connected to an adapter and a modem through a firewall with a cryptographic provider, which, through the operator's communication system via a data transmission network, is connected to a computing center capable of calculating the speed of a vehicle using data received from at least two registrars, and the cryptographic provider is installed with the ability to be protected by the registrar the data to be abated with an electronic digital signature.

The disadvantage of this device is the impossibility of obtaining reliable data on violations of the speed limit of vehicles on relatively short sections of the road (several hundred meters). A significant error in the calculations does not allow the device to be used in such conditions.

A known device for fixing violations of the high-speed traffic regime of motor vehicles (RF patent No. 101243, IPC G08G 1/052, publ. 01/10/2011), containing two computer units installed at the boundaries of a road section of a given length, equipped with video cameras designed to transfer data to computer blocks for license plate recognition, as well as a communication channel between the first and second computer blocks.

The disadvantage of this device is that it requires the installation of a computer with each video camera, which significantly increases costs. In addition, the lack of time synchronization of video cameras can negatively affect the accuracy of the device and the reliability of the data obtained.

A device for determining the speed of movement and coordinates of vehicles with their subsequent identification and automatic registration of violations of traffic rules is known from the prior art (RF patent No. 2382416, IPC G08G 1/052, G08G 1/017, G07C 5/08, publ. 20.02.2010 ) containing a radar, at least one video camera for recognizing the state registration plate, and a control and data processing unit connected to them, the radar contains a signal processing module that calculates the speed and range of all vehicles located on the selected section of the roadway.

The disadvantage of this device is that it uses a radar to measure the speed of vehicles, which emits radio signals that can be recorded by special means (radar detectors) of road users. This significantly reduces the efficiency of the system.

The objective of the invention is to create a system for determining the speed of a vehicle on a site, characterized by increased accuracy and reliability of operation, low operating and maintenance costs.

The specified technical result is achieved by the fact that the system contains at least two video registration units (VBR), each of which is a monoblock, consisting of an IP camera with the function of recognition of state registration plates (GRZ) and a single-board computer of transport analytics (OCTA) containing in itself a computer, a data storage device, a radio modem, a GNSS receiver. Each FBG works independently. FBR in automatic mode identifies the vehicle (vehicle) license plate, records data (place and time) of the vehicle into the archive and transfers this data to other FBG specified in the settings. If the data of the license plate coincide, the travel time of the road section is compared and the average speed of the vehicle on the section is calculated and violations of the speed limit are recorded. Forms an evidentiary base, including photo and video materials with records of the current time interval obtained during the reception and processing of GNSS signals included in the system, and a receipt for payment of the fine, and transmits them via a data transmission facility via a radio modem or Ethernet network to the user's server.

In some embodiments, the implementation of the claimed device may be additionally equipped with a survey video camera designed to obtain survey frames. These frames can be used as an additional evidence base when fixing violations.

The essence of the invention is illustrated in FIG. 1 and FIG. 2. In FIG. 1 shows the general block diagram of the FBG.

The claimed device is a system that includes the following main elements:

1. Camera with recognition ГР3-digital video camera. Contains software and hardware that provides information processing functions (image capture of a vehicle, recognition of the vehicle's license plate). Transmits data to the calculator via Ethernet or USB interface.

2. GNSS receiver. It receives signals from the satellites of the Global Navigation Satellite System for time synchronization, and gives out exact time values, as well as an exact second pulse (PPS - pulse per second).

3. Calculator. Contains tools for synchronization, archiving, analytics and fines. Contains software and hardware that provide functions for processing information from a video camera and its use to calculate the average speed of vehicles on the monitored section of the road. The software and hardware, in particular, provides the calculation of the distance from the video camera to the vehicle by the video frame in relation to which the license plate is recognized. This distance is determined taking into account the previously obtained calibration parameters (the focal length of the video camera, the size of the video camera matrix) by the video frame (the image of the plate in the frame, the size of the plate in pixels on the frame, the real size of the plate in accordance with GOST) calculates the distance from the device to the vehicle. To synchronize the internal time of the system with global time, an NTPD server is installed with synchronization from the GNSS receiver, the time stamp is transmitted to the camera with the recognition of the license plate, since the interframe interval has a stable frequency, the calculator simply counts incoming frames from each camera, and thanks to the accurate interframe interval it provides accurate binding of each frame to a single timeline, and also assigned to all metadata.

4. Storage device. It is an SSD disk.

5. Radio modem. Allows you to send and receive data over cellular networks (2G, 3G, 4G, 5G).

6. Overview camera. It is an optional element, it is intended for additional evidence when fixing violations.

7. User server. Designed for diagnostics and adjustment of FBG.

FIG. 2 shows a diagram of the installation of devices along the roadbed and the visual control zone of the VBR 1, 2 and N within the monitored section of the road.

When installing the device on the side of a road section, VBR1 captures vehicles crossing the border of the controlled section of the road, VBR2 and BBPN captures vehicles crossing their border of the controlled section of the road. VBR1 saves to the data storage device and transmits data about the vehicle, including the ID of the VBR, the number and photo of the license plate, the photo of the vehicle, the date and time synchronized with the GNSS to the user's server, VBR2 and BBPN, through the user's server or via a radio modem. When the vehicle crosses the border controlling VBR2 and BBPN, the data on the vehicle will be equal to the time of crossing VBR1, the average speed of the vehicle is calculated, compared with the permissible speed set in this section, and in case of violation it generates a package of evidence (one photo of the vehicle recorded at each turn of the VBR recognized by the vehicle license plate, the date and time of fixing on each, information about the location of the boundaries and the distances between the boundaries, as well as about the average speed limit on the given road section, the measured (actual) average speed on the given road section, if the radar system has an instantaneous speed ...

The technical result from the use of the invention is to improve the accuracy and reliability of determining the speed of the vehicle on the site, as well as low costs of its operation and maintenance.

Claims (1)

The system for determining the speed of a vehicle at the site consists of at least two video registration units (VBR), each of which is a monoblock, consisting of an IP camera with the function of recognition of state registration plates (LPR) and a single-board computer of transport analytics, containing a computer, data storage device, radio modem, GNSS receiver, while each FBG works independently and automatically identifies the vehicle license plate, writes data to the archive and transmits this data to other FBG specified in the settings, if the data of the license plate coincides, compares the time of passage of the section roads and calculates the average speed of the vehicle on the site and records violations of the speed limit, forms an evidentiary base, including photo and video materials with records of the current time interval obtained during the reception and processing of GNSS signals that are part of the system, and a receipt for payment w traffic, and transmits them via a data transmission medium via a radio modem or Ethernet network to the user's server.

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