RU160565U1 - DEVICE OF AUTOMATED CONTROL OF SPEED MODE OF MOTOR TRANSPORT AT A PLOT - Google Patents

Abstract

1. A device for automated control of the high-speed mode of vehicles on a site, including two video cameras and a computer, characterized in that it additionally includes a global navigation system receiver for synchronizing the internal time of the system with global time, and the video cameras are installed at the boundaries of the monitored area, have an external synchronization input, built-in frame counter and connected to the computer by a data transmission channel, while the computer includes a synchronization unit responsible for temporary synchronization of video cameras with a computer, software and hardware that are responsible for recognizing vehicle GRD based on information received from video cameras, calculating the average vehicle speed in a controlled area, as well as a memory module. 2. The device according to claim 1, characterized in that it further includes at least one surveillance video camera mounted on the border of the controlled section of the road.

Description

The utility model relates to control and measuring equipment and is intended for automated control over compliance with traffic rules, namely, to a device for automated control of high-speed mode of vehicles on a site. The device automatically identifies state registration plates (GRZ) of vehicles (TS), calculates the average vehicle speed on the site and fixes speed violations.

The prior art device for determining the speed and coordinates of vehicles with their subsequent identification and automatic registration of violations of the rules of the road (RF patent No. 2382416, IPC G08G 1/052, G08G 1/017, G07C 5/08, publ. 02.20.2010 ), containing a radar, at least one video camera recognizing the state registration mark, 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, finding existing in a selected section of the roadway.

The specified method allows you to control a section of the road with a length of not more than a few hundred meters. In addition, the radar included in its composition emits radio signals, which can be fixed special. means (radar detectors) of the participants in the movement, which reduces the effectiveness of this system.

A device for fixing violations of the high-speed mode of movement of automobile transport (RF patent No. 110856, IPC G08G 1/054, published on 11/27/2011) containing at least two recorders, each of which includes at least one computer and a video camera, is made with the ability to capture the image of the vehicle, each registrar is equipped with a receiver of the global satellite navigation system for communication with the global satellite navigation system and is configured to determine its geographic x coordinates and time synchronization, in addition, the computer is connected via an firewall with a cryptographic provider to an adapter and a modem, which is connected via an operator’s communication system via a data network to a computer center, which is capable of calculating the vehicle’s speed using data received from at least two registrars, moreover, the cryptographic provider is installed with the ability to protect the processed data by the registrar with an electronic digital signature.

In the specified device, the distance between two adjacent control lines is determined on the basis of satellite navigation system data, which limits the possibility of using this device on road sections with turns and elevations, and can also lead to significant errors in calculating the average speed. In addition, for the operation of the device requires the installation of a computer and a GPS receiver with each camcorder, which increases costs.

A device is known for fixing violations of the high-speed mode of movement of automobile transport (RF patent No. 101243, IPC G08G 1/052, published January 10, 2011), containing two computer units mounted on the boundaries of a given length of the road, equipped with video cameras designed to transmit data to computer blocks for recognition of license plates, as well as a communication channel between the first and second computer blocks.

The specified device requires the installation of a computer at each line of control, working in tandem with a video camera, as well as the transfer of information from one computer to another, which significantly increases the cost of monitoring several consecutive sections on an extended route. In addition, the lack of time synchronization of cameras can adversely affect the accuracy of the device and the reliability of the data.

The technical result of the claimed utility model is the creation of a device for automated control of the high-speed mode of vehicles in a section characterized by an expanded geography of use, regardless of the terrain and configuration of the road section, increased accuracy and reliability, regardless of the length of the controlled sections of the road, and low operating and maintenance costs.

The specified technical result is achieved in that the device for automated control of the high-speed mode of vehicles in the area includes at least two video cameras and a computer, while the cameras are installed at the boundaries of the controlled area, have an external synchronization input or a built-in frame counter and are connected to the computer by a data transmission channel, and the computer includes a synchronization unit, responsible for the temporary synchronization of the cameras with the computer, software and hardware, responsible for recognizing vanie GRZ vehicle based on information received from the cameras, the calculation of the average speed of the vehicle in the controlled area, and the memory module.

To synchronize the internal time of the system with global time, the device can be additionally equipped with a receiver of the global navigation system.

To increase the evidence-based significance of the information received, the device can be additionally equipped with at least one surveillance video camera installed within the controlled area.

The device may include up to 8 or more cameras located at adjacent control lines. If necessary, two or more video cameras can be installed at the same control line, for example, to control several lanes or vehicles moving in the opposite direction.

The essence of the utility model is illustrated in FIG. 1 and FIG. 2

In FIG. 1 shows a general block diagram of a device.

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

- a computer containing information processing means, a synchronization unit and a memory module, and

- video cameras installed on the borders of the controlled section of the road and connected to the computer by a data transmission channel.

Additionally, the claimed device may include a global navigation system receiver for external time synchronization of the system.

In FIG. Figure 2 shows the options for placing cameras on the control lines.

Option 1 is the simplest, two cameras are located on two lines and control the movement of vehicles in one direction.

Option 2 - at each line of control, two video cameras are installed that monitor the movement of vehicles in both directions.

Option 3 - on several consecutive control lines, one video camera is installed to control the movement of vehicles in adjacent areas in one direction.

The above options for the placement of cameras are just an illustration of practical implementation and do not limit the possible options for using the claimed device in each specific situation.

In the claimed device, the computer (server) contains software and hardware that provide the processing functions of information received from the cameras (capture of the vehicle image, recognition of the vehicle HID shown on the frame) and its use to calculate the average speed of vehicles in the area.

There is a memory module in the computer, in which both the primary information from the cameras and the results of its processing flow together. The memory module also contains data on all cameras, their location, the distance between them and other parameters necessary to perform the specified functions of the device (the maximum permissible speed of vehicles in controlled areas, etc.).

The synchronization unit, which is part of the computer, is a device based on a microcontroller, which is responsible for temporarily synchronizing the operation of video cameras with a computer. Upon receipt of a command to “start synchronization”, the synchronization unit provides a sync pulse to the cameras for synchronous start-up, and at the same time sends an exact start time stamp to the computer. Thus, the first frame of each video camera is linked to the timeline.

In addition, the synchronization unit provides the ability to receive the input signals of the receiver of the global navigation system, which can be equipped with the claimed device. In this case, the indicated unit will also perform the function of synchronizing the internal time of the system with global time by satellite.

In the claimed device, both analog (with external synchronization) and digital (such as GigE, with a built-in frame counter) cameras can be used. The external synchronization input allows you to synchronize several cameras of the same type using a single clock signal (one sync device, i.e. a synchronization unit). Thus, analog video cameras on the external synchronization signal begin to form video frames at a time. And since the inter-frame interval has a stable frequency, the computer simply counts the incoming frames from each camera, and thanks to the exact inter-frame interval, it ensures that each frame is precisely linked to a single time scale.

For GigE type digital cameras, the built-in counter independently writes the frame number to the metadata of each frame. In this case, you also need to synchronize the cameras from the outside (to start the formation of frames by an external signal) using the synchronization unit.

The following is a description of the operation of the claimed device.

At the borders of the monitored area with known speed limits for vehicles, one or more video cameras are installed in such a way that vehicles passing through the control zone with visible GRZ (front or rear) pass. Each video camera is connected by a data transmission channel to a computer.

The cameras are set up and calibrated in order to calculate the length of the road section in the control zone of each camera at each turn, and the device software allows calculating the distance in the control zone from the vehicle’s GRZ in an arbitrary place before entering and leaving the control zone.

The place of installation of the boundaries (the distance between the cameras), as well as the values of the maximum permissible speed on each controlled section of the road, are pre-recorded in the memory module. Camcorders can be 8 or more. Video cameras at the borders are also pre-configured (calibration - to accurately determine the position of the GRS TS in the control zone of a separate video camera).

Set the exact time of the device. Preferably, a global navigation system receiver is used for these purposes, which receives signals from the satellite and generates an accurate time value. This data is transmitted to the computer and the synchronization unit. When starting the software on a computer, a command is sent to the synchronization unit to start synchronizing the cameras. Upon receipt of a start command, the synchronization unit provides a sync pulse to the cameras for synchronous start, and at the same time sends the exact start time stamp to the computer.

With the help of video cameras, the vehicle is fixed (the position of the distributor in the control zone is recorded on the frame, the distance from the distributor to the beginning / end of the control zone is calculated), the time is recorded, and the recognition of the distributor of the vehicle. Each video camera captures the vehicle in the control zone several times, depending on its speed, but for calculations and the evidence base, the program selects 1 frame, on which the load-bearing device and the vehicle itself are clearly visible. It is for this frame that the time and position of the vehicle are fixed for the subsequent calculation of the average speed.

In the case of fixing a vehicle with the same GRZ with two different cameras, the software analyzes the relative position of the cameras and calculates the average travel speed of the vehicle as the ratio of the distance traveled by it to the time spent on it. In this case, the distance traveled is calculated as the distance between the cameras, plus the distance traveled in each control zone, calculated individually for each vehicle. Time is calculated as the difference between the time of entry (on the video frame at the border of entry) and the time of departure (on the video frame at the border of exit).

The distance from the beginning of the control zone to the end of the control zone is measured using a distance meter, such as a road wheel (curvimeter) or a laser distance meter. The obtained value does not change during the operation of the complex and is used to calculate the average speed of vehicles on a controlled stretch of road (taking into account the above amendments for each vehicle). This measured value fully takes into account the configuration and profile of the road, which ensures high accuracy in measuring the distance traveled, and therefore the average speed.

At each control line, all passing vehicles are fixed. For each vehicle, the following information is stored in the computer memory module:

- photo of the vehicle,

- identifier of the control line (video camera),

- recognized grez,

- date and time of fixation.

This information is stored in the memory module and is further processed on the computer. Using special software and hardware tools, violations of the high-speed mode of vehicles in a controlled area are detected and recorded.

In cases of exceeding the permissible vehicle speed, the computer generates a package of evidence:

- two photos of the vehicle recorded at adjacent borders (the boundaries of the controlled area),

- recognized Grez TS,

- date and time of fixation at each line,

- information on the location of the lines and on the distance between the lines, as well as on the limitation of the average speed on this section of the road,

- measured (actual) average speed on a given section of the road.

Claims (2)

1. A device for automated control of the high-speed mode of vehicles on a site, including two video cameras and a computer, characterized in that it additionally includes a global navigation system receiver for synchronizing the internal time of the system with global time, and the video cameras are installed at the boundaries of the monitored area, have an external synchronization input, built-in frame counter and connected to the computer by a data transmission channel, while the computer includes a synchronization unit responsible for temporary synchronization of video cameras with a computer, software and hardware that are responsible for recognizing vehicle GRD based on information received from video cameras, calculating the average vehicle speed in a controlled area, as well as a memory module. 2. The device according to p. 1, characterized in that it further includes at least one surveillance video camera mounted on the border of the controlled section of the road.

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