Traffic accident scene warning traffic light and control system thereof

Abstract

The invention relates to the field of traffic lights, is used for solving the problem that an accident warning traffic light cannot analyze the congestion condition of an accident area and lacks intelligent dispersion of the congestion of the accident area, and particularly relates to a traffic accident scene warning traffic light and a control system thereof. The system specifically comprises an accident analysis unit, a traffic flow monitoring unit, a warning reminding unit, an effect feedback unit and a road statistical feedback unit. Road traffic flow conditions are acquired by means of the road camera, the road traffic flow conditions are analyzed to obtain congestion conditions of different lanes, and the congestion conditions of the lanes are displayed through the display area on the warning traffic light, so that a driver can select the lanes in advance, and the driving safety is improved. Through continuous supervision and dynamic analysis of the congestion condition of the accident occurrence area, the traffic flow is adjusted according to the congestion aggravation condition, the congestion pressure of the accident occurrence area is dispersed, and the evacuation work of traffic flow congestion is facilitated.

Description

Technical Field

[0001] The invention relates to the field of traffic signal lights, in particular to a traffic accident scene warning traffic light and a control system thereof. Background Art

[0002] With the continuous development of transportation technology, the number of cars is increasing, and the number of traffic accidents is also increasing. Traffic accidents not only cause direct property losses and casualties, but also lead to traffic delays, traffic jams, leakage of dangerous goods, fires, explosions and other problems, causing serious losses to normal production and life and social property. When a traffic accident occurs, if the passing vehicles are not notified in time, secondary accidents often occur, which in turn cause more serious losses of life and property. Therefore, how to enable passing vehicles to receive information about the traffic accident ahead in time is a technical problem that needs to be solved urgently;

[0003] At present, patent application CN2020112007755 discloses a technical solution, which uses an indicator light strip to sense the occurrence of an accident by intelligent sensing, and automatically lights up to remind the driver behind, thereby playing the role of accident warning. At the same time, it can remind the lane where the accident occurred, so that the driver can change lanes in advance;

[0004] However, although this solution can play the role of warning the accident location, when reminding the driver to change lanes, it can only remind the driver to avoid the accident lane, but cannot conduct intelligent in-depth analysis of the congestion of lanes other than the accident lane, which makes the congestion of lanes adjacent to the accident worse, and lacks the ability to guide the traffic congestion in the accident area. At the same time, the warning device lacks a linkage system and cannot optimize the control of the front and rear communication signal lights according to the traffic congestion in the accident area, so as to disperse the congestion pressure and accelerate the evacuation of traffic in the accident area.

[0005] In view of the above technical problems, this application proposes a solution. Summary of the invention

[0006] The present invention uses the networking function of the warning light and the road camera to obtain the road traffic situation, analyze the road traffic situation, obtain the congestion situation of different lanes, and then display the lane congestion situation through the display area on the warning traffic light, so that the driver can choose the lane in advance, and continuously monitor and dynamically analyze the congestion situation in the accident area, and adjust the traffic in the direction of the rear vehicle and the traffic in the evacuation direction in front according to the aggravation of congestion, so as to disperse the congestion pressure in the accident area and facilitate the evacuation of traffic congestion, so as to solve the problem that the accident warning traffic light cannot analyze the congestion situation in the accident area and lacks intelligent guidance of the congestion in the accident area, and proposes a traffic accident scene warning traffic light and its control system.

[0007] The object of the present invention can be achieved by the following technical solutions: A traffic accident scene warning traffic light, comprising a base, an electric lifting rod is fixedly installed on the upper surface of the base, a device assembly is fixedly installed on the top of the electric lifting rod through a connector, a plurality of display areas are fixedly installed on the side of the device assembly, and each display area can be used to display an image independently;

[0008] A plurality of groups of inclined stabilizing rods are installed inside the base, and each group of stabilizing rods can be manually pulled out from the base and positioned by bolts and a plurality of groups of axially arranged threaded holes;

[0009] The device assembly is internally integrated with a wireless communication module and a processing module, wherein a control system is provided in the processing module, which is connected to a control center via the wireless communication module, receives data via the control center, and processes the received data via the control system in the processing module to control the display content of the display area;

[0010] The control center obtains road images through cameras on the road based on the manually uploaded accident locations. The equipment assembly obtains road images from the control center through a wireless communication module and sends the road images to a processing module for analysis.

[0011] The present invention also proposes a control system for a traffic accident scene warning traffic light, comprising an accident analysis unit, a traffic flow monitoring unit, a warning reminder unit, an effect feedback unit and a road statistics feedback unit;

[0012] The accident analysis unit acquires an image of the accident area, analyzes the image of the accident area, automatically generates an accident congestion scale, and sends the accident congestion scale to the road statistics feedback unit;

[0013] The traffic flow monitoring unit acquires a traffic flow image of the accident area, analyzes the number of vehicles and travel speed in the accident area, and generates vehicle traffic suggestions;

[0014] The warning reminder unit obtains vehicle traffic suggestions through the vehicle flow monitoring unit, and generates a control signal to change the image displayed in the display area;

[0015] The effect feedback unit obtains the control signal through the warning unit, and obtains the vehicle congestion situation through the traffic monitoring unit, continuously monitors the vehicle congestion situation after the control signal is generated, and generates a congestion improvement evaluation result, and sends the congestion improvement evaluation result to the road statistics feedback unit;

[0016] The road statistics feedback unit analyzes the congestion improvement evaluation result, generates a throttling control signal according to the analysis result, and sends the throttling control signal to the control center through the wireless communication module. The control center controls the traffic lights in the direction of the accident area according to the throttling signal.

[0017] As a preferred embodiment of the present invention, the method for the accident analysis unit to analyze the accident area image is:

[0018] The location of the accident in the image is marked by an image recognition algorithm, and the distance is measured in two directions perpendicular to the road direction and parallel to the road direction to obtain the width and length of the accident area. The area S1 of the accident area is obtained by calculating the width and length of the accident area.

[0019] The accident analysis unit simultaneously obtains the road width of the accident area, and simultaneously obtains the traffic lights closest to the accident area in the direction of the road and the opposite direction of the road, and records the distance between the two groups of traffic lights as the road length L, and records the road width and road length as the road accommodation area S2.

[0020] As a preferred embodiment of the present invention, the accident analysis unit calculates the ratio of the accident area S1 to the road accommodation area S2 to obtain the accident congestion proportion B1, and compares the accident congestion proportion B1 with the set area level threshold D1...Dn, where n is a natural number, confirms the level of the accident area B1, and records the level as the accident congestion scale D.

[0021] As a preferred embodiment of the present invention, the method for the vehicle flow monitoring unit to analyze the number and speed of vehicles in the accident area is:

[0022] Obtain the traffic image of the accident area, and count the number of vehicles and vehicle speeds in the road length L. When counting the number of vehicles and vehicle speeds, the traffic monitoring unit obtains the road marking lines, divides the road into i lanes, i is a natural number, counts the number of vehicles Ni and vehicle speed Vi in each lane, and generates the lane congestion degree Ci through formula analysis. Where J is a preset weight constant. The traffic flow monitoring unit compares the lane congestion levels Ci, selects the lane with the lowest lane congestion level as the optimal lane, and records the lane with the highest lane congestion level Ci as the congested lane, thereby generating vehicle traffic recommendations.

[0023] As a preferred embodiment of the present invention, when the effect feedback unit continuously monitors the lane congestion level after the control signal is generated, the lane congestion levels of all lanes are arithmetically averaged to obtain the overall lane congestion level, and the changes in the overall lane congestion levels at different time points are compared. If the overall lane congestion level increases, it is recorded as increased congestion; if the overall lane congestion level decreases, it is recorded as reduced congestion, thereby generating a congestion improvement evaluation result.

[0024] As a preferred implementation of the present invention, the process of the road statistics feedback unit parsing the congestion improvement evaluation result is as follows:

[0025] The road statistics feedback unit compares the number of times the congestion is aggravated and the number of times the congestion is relieved to obtain a change ratio. If the change ratio is greater than a set threshold, a throttling control signal is generated; if the change ratio is not greater than the set threshold, no response is made.

[0026] The road statistics feedback unit records the overall lane congestion degree as Cb, and generates the congestion relief difficulty Q through the formula, Q=Cb*D. When the congestion relief difficulty is greater than the set threshold, a throttling control signal is generated. When the congestion environment difficulty is not greater than the set threshold, no response is made.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention sets a warning light in the traffic accident area to warn the area where the traffic accident occurs. At the same time, through the networking function of the warning light, the road traffic situation is obtained with the help of road cameras, and the road traffic situation is divided into lanes and deeply analyzed to obtain the congestion situation of different lanes. The lane congestion situation is then displayed through the display area on the warning traffic light, which is convenient for drivers to select lanes in advance and avoid excessive congestion in the accident area, which may lead to the occurrence of secondary accidents.

[0029] 2. In the present invention, by continuously monitoring and dynamically analyzing the congestion situation in the accident area, a balanced analysis is conducted on the traffic evacuation and traffic inflow in the accident area, and the traffic in the rear oncoming direction and the traffic in the front evacuation direction are adjusted according to the aggravated congestion situation, so as to disperse the congestion pressure in the accident area and facilitate the evacuation of traffic congestion. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0031] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the stabilizing support rod structure of the present invention.

[0033] Figure 3 is a system block diagram of the present invention;

[0034] Figure 4 It is a system flow chart of the present invention.

[0035] In the figure: 1. Electric lifting rod; 2. Base; 3. Equipment assembly; 4. Display area; 5. Stabilizing support rod. DETAILED DESCRIPTION

[0036] The technical scheme of the present invention will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example 1: Please refer to Figure 1 - Figure 4 As shown, a traffic accident scene warning traffic light comprises a base 2, an electric lifting rod 1 is fixedly mounted on the upper surface of the base 2, a device assembly 3 is fixedly mounted on the top of the electric lifting rod 1 through a connector, and a plurality of display areas 4 are fixedly mounted on the side of the device assembly 3, and each display area 4 can be used to display an image independently;

[0038] A plurality of tilted stabilizing rods 5 are installed inside the base 2. Each stabilizing rod 5 can be manually pulled out from the base 2 and positioned by bolts and a plurality of axially arranged threaded holes. The base 2 and the stabilizing rods 5 are provided with a plurality of axially arranged threaded holes. The bolts penetrate the threaded holes on the base 2 and are inserted into the threaded holes on the stabilizing rods 5 to achieve positioning, thereby preventing the stabilizing rods 5 from retreating into the base 2.

[0039] The device assembly 3 integrates a wireless communication module and a processing module. The processing module is provided with a control system. The control center is connected via the wireless communication module, data is received via the control center, and the received data is processed by the control system in the processing module to control the display content of the display area 4.

[0040] Example 2: Please refer to Figure 1 - Figure 4As shown, a control system for warning traffic lights at a traffic accident scene includes an accident analysis unit, a traffic flow monitoring unit, a warning reminder unit, an effect feedback unit and a road statistics feedback unit;

[0041] When an accident occurs on the road, the accident location is manually uploaded to the control center. The control center obtains the road image through the camera on the road according to the accident location. The equipment assembly 3 obtains the road image from the control center through the wireless communication module and sends the road image to the processing module for analysis;

[0042] The accident analysis unit obtains an image of the accident area, marks the location of the accident in the image through an image recognition algorithm, and measures the distance in two directions perpendicular to the road direction and parallel to the road direction to obtain the width and length of the accident area. The area S1 of the accident area is obtained by calculating the width and length of the accident area.

[0043] The accident analysis unit simultaneously obtains the road width of the accident area and the nearest traffic lights in the direction of the road and the opposite direction of the road in the accident area, records the distance between the two groups of traffic lights as the road length L, and records the road width and road length as the road accommodation area S2;

[0044] The accident analysis unit calculates the ratio of the accident area S1 to the road accommodation area S2 to obtain the accident congestion ratio B1, and compares the accident congestion ratio B1 with the set area gear threshold D1...Dn, where n is a natural number, confirms the gear of the accident area B1, records the gear as the accident congestion scale D, and sends the accident congestion scale D to the road statistical feedback unit;

[0045] The traffic flow monitoring unit obtains the traffic flow image of the accident area and counts the number of vehicles and vehicle speeds in the road length L. When counting the number of vehicles and vehicle speeds, the traffic flow monitoring unit obtains the road marking lines, divides the road into i lanes, i is a natural number, counts the number of vehicles Ni and vehicle speed Vi in each lane, and generates the lane congestion degree Ci through formula analysis. Where J is a preset weight constant. The traffic flow monitoring unit compares the lane congestion levels Ci, selects the lane with the lowest lane congestion level as the optimal lane, and records the lane with the highest lane congestion level Ci as the congested lane, thereby generating a vehicle traffic recommendation;

[0046] The warning and reminder unit obtains vehicle traffic suggestions through the vehicle flow monitoring unit, and generates a control signal to change the image displayed in the display area 4, and displays different signs and patterns through the display area 4 to symbolize the degree of congestion of different lanes. At the same time, the number of display areas 4 for the traffic accident scene warning traffic lights is at least three groups. The traffic accident scene warning traffic lights are placed behind the accident location, and the accident location is reminded in the middle position. The congestion degree of the lane is prompted on at least two groups of display areas on both sides, so that the rear vehicles can choose to pass through the left area or the right area of ​​the accident area;

[0047] The effect feedback unit obtains the control signal through the warning unit and the lane congestion degree through the traffic flow monitoring unit, and continuously monitors the lane congestion degree after the control signal is generated, that is, the lane congestion degrees of all lanes are arithmetic averaged to obtain the overall lane congestion degree, and the changes in the overall lane congestion degree at different time points are compared. If the overall lane congestion degree increases, it is recorded as aggravated congestion, and if the overall lane congestion degree decreases, it is recorded as relieved congestion, thereby generating a congestion improvement evaluation result, and sending the congestion improvement evaluation result to the road statistical feedback unit;

[0048] The road statistics feedback unit analyzes the congestion improvement evaluation results. The analysis process is as follows:

[0049] The road statistics feedback unit compares the number of times the congestion is aggravated and the number of times the congestion is relieved to obtain a change ratio. If the change ratio is greater than a set threshold, a throttling control signal is generated. If the change ratio is not greater than the set threshold, no response is made.

[0050] The road statistics feedback unit records the overall lane congestion degree as Cb, and generates the congestion relief difficulty Q through the formula, Q = Cb * D. When the congestion relief difficulty is greater than the set threshold, a throttling control signal is generated. When the congestion environment difficulty is not greater than the set threshold, no response is made.

[0051] The road statistics feedback unit sends the throttling control signal to the control center through the wireless communication module. The control center controls the traffic lights in the direction of the accident area according to the throttling signal. The specific control methods include extending the waiting time of the red light in the direction of the rear vehicles and extending the green light release time in the direction of the lane ahead, etc., so as to accelerate the evacuation of traffic in the accident area and reduce congestion.

[0052] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A traffic accident scene warning traffic light, comprising a base (2), characterized in that: An electric lifting rod (1) is fixedly mounted on the upper surface of the base (2), wherein a device assembly (3) is fixedly mounted on the top of the electric lifting rod (1) via a connector, and a plurality of display areas (4) are fixedly mounted on the side of the device assembly (3), and each display area (4) can be used to display an image independently; A plurality of groups of inclined stabilizing rods (5) are installed inside the base (2), and each group of stabilizing rods (5) can be manually withdrawn from the base (2) and positioned by bolts and a plurality of groups of axially arranged threaded holes; The device assembly (3) is internally integrated with a wireless communication module and a processing module, wherein a control system is provided in the processing module, and is connected to a control center via the wireless communication module, and receives data via the control center, and processes the received data via the control system in the processing module, thereby controlling the display content of the display area (4); The control center obtains a road image through a camera on the road based on the manually uploaded accident location. The equipment assembly (3) obtains the road image from the control center through a wireless communication module and sends the road image to a processing module for analysis by the processing module.

2. A control system for a traffic accident scene warning traffic light, applied to a traffic accident scene warning traffic light as claimed in claim 1, characterized in that: It includes accident analysis unit, traffic flow monitoring unit, warning reminder unit, effect feedback unit and road statistics feedback unit; The accident analysis unit acquires an image of the accident area, analyzes the image of the accident area, automatically generates an accident congestion scale, and sends the accident congestion scale to the road statistics feedback unit; The traffic flow monitoring unit acquires a traffic flow image of the accident area, analyzes the number of vehicles and travel speed in the accident area, and generates vehicle traffic suggestions; The warning reminder unit obtains vehicle traffic advice through the vehicle flow monitoring unit and generates a control signal to change the image displayed in the display area (4); The effect feedback unit obtains the control signal through the warning unit, and obtains the vehicle congestion situation through the traffic monitoring unit, continuously monitors the vehicle congestion situation after the control signal is generated, and generates a congestion improvement evaluation result, and sends the congestion improvement evaluation result to the road statistics feedback unit; The road statistics feedback unit analyzes the congestion improvement evaluation result, generates a throttling control signal according to the analysis result, and sends the throttling control signal to the control center through the wireless communication module. The control center controls the traffic lights in the direction of the accident area according to the throttling signal.

3. A control system for traffic lights warning of traffic accidents according to claim 2, characterized in that: The method for the accident analysis unit to analyze the accident area image is: The location of the accident in the image is marked by an image recognition algorithm, and the distance is measured in two directions perpendicular to the road direction and parallel to the road direction to obtain the width and length of the accident area. The area S1 of the accident area is obtained by calculating the width and length of the accident area. The accident analysis unit simultaneously obtains the road width of the accident area, and simultaneously obtains the traffic lights closest to the accident area in the direction of the road and the opposite direction of the road, and records the distance between the two groups of traffic lights as the road length L, and records the road width and road length as the road accommodation area S2.

4. A control system for traffic accident scene warning traffic lights according to claim 3, characterized in that: The accident analysis unit calculates the ratio of the accident area S1 to the road holding area S2 to obtain the accident congestion proportion B1, and compares the accident congestion proportion B1 with the set area level threshold D1...Dn, where n is a natural number, confirms the level at which the accident area B1 is located, and records the level as the accident congestion scale D.

5. The control system of a traffic accident scene warning traffic light according to claim 2, characterized in that: The method for the vehicle flow monitoring unit to analyze the number and speed of vehicles in the accident area is: Obtain the traffic image of the accident area, and count the number of vehicles and vehicle speeds in the road length L. When counting the number of vehicles and vehicle speeds, the traffic monitoring unit obtains the road marking lines, divides the road into i lanes, i is a natural number, counts the number of vehicles Ni and vehicle speed Vi in each lane, and generates the lane congestion degree Ci through formula analysis. Where J is a preset weight constant. The traffic flow monitoring unit compares the lane congestion levels Ci, selects the lane with the lowest lane congestion level as the optimal lane, and records the lane with the highest lane congestion level Ci as the congested lane, thereby generating vehicle traffic recommendations.

6. A control system for traffic lights warning of traffic accidents according to claim 2, characterized in that: When the effect feedback unit continuously monitors the lane congestion degree after the control signal is generated, the lane congestion degrees of all lanes are arithmetically averaged to obtain the overall lane congestion degree, and the changes in the overall lane congestion degree at different time points are compared. If the overall lane congestion degree increases, it is recorded as aggravated congestion; if the overall lane congestion degree decreases, it is recorded as relieved congestion, thereby generating a congestion improvement evaluation result.

7. A control system for traffic lights warning of traffic accidents according to claim 2, characterized in that: The process of analyzing the congestion improvement evaluation result by the road statistics feedback unit is as follows: The road statistics feedback unit compares the number of times the congestion is aggravated and the number of times the congestion is relieved to obtain a change ratio. If the change ratio is greater than a set threshold, a throttling control signal is generated; if the change ratio is not greater than the set threshold, no response is made. The road statistics feedback unit records the overall lane congestion degree as Cb, and generates the congestion relief difficulty Q through the formula, Q=Cb*D. When the congestion relief difficulty is greater than the set threshold, a throttling control signal is generated. When the congestion environment difficulty is not greater than the set threshold, no response is made.

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