CN114898579B - Alternate traffic intersection snapshot method, device, computer and storage medium - Google Patents
Alternate traffic intersection snapshot method, device, computer and storage medium Download PDFInfo
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- CN114898579B CN114898579B CN202210316714.8A CN202210316714A CN114898579B CN 114898579 B CN114898579 B CN 114898579B CN 202210316714 A CN202210316714 A CN 202210316714A CN 114898579 B CN114898579 B CN 114898579B
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/081—Plural intersections under common control
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
- G08G1/054—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed photographing overspeeding vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The invention discloses a method, a device, a computer and a storage medium for capturing alternate traffic intersections, and relates to the field of transportation, wherein the method comprises the following steps: detecting whether the road section comprises a motor vehicle or not by using virtual detection lines respectively arranged on the first entrance road section, the second entrance road section and the exit road section; if the motor vehicles are contained in each road section, the snapshot system enters a snapshot mode; judging whether motor vehicles exist in the range of a preset detection road section or not, wherein the preset detection road section comprises a first detection road section and a second detection road section; if the motor vehicles are stored in the range of the preset detection road section and the speed of the motor vehicle of the corresponding detection road section in the preset time period is greater than zero, the snapshot system enters a snapshot judging mode to conduct snapshot on the illegal motor vehicle. The invention can take the offence snapshot of the motor vehicles in the alternate traffic scene, and has certain positive effects on improving road traffic and urban comprehensive environment treatment.
Description
Technical Field
The invention relates to the field of transportation, in particular to a method, a device, a computer and a storage medium for capturing alternate traffic intersections.
Background
The alternate traffic is also called as zipper type traffic, and refers to that when vehicles in front of road sections and intersections where two lanes are combined into one lane stop and wait or slowly run, the vehicles in the two lanes start from a junction point, and the vehicles in the two lanes are staggered like a zipper, enter the junction lane in sequence and run alternately and orderly.
However, in the actual alternate traffic scenario, there are a variety of behaviors that disrupt traffic order, resulting in a great deal of congestion of subsequent motor vehicles and driving difficulties.
Disclosure of Invention
The invention provides a method, a device, a computer and a storage medium for capturing alternate traffic intersections, aiming at the problem that the existing alternate traffic is easy to disrupt traffic order behaviors.
The technical scheme provided by the invention for the technical problems is as follows:
the invention provides a snapshot method of an alternate traffic intersection, which is applied to a snapshot system of the alternate traffic intersection, wherein the alternate traffic intersection comprises a first entrance road section, a second entrance road section and an exit road section; the method comprises the following steps:
detecting whether the road section comprises a motor vehicle or not by using virtual detection lines respectively arranged on the first entrance road section, the second entrance road section and the exit road section;
if the motor vehicles are contained in each road section, the snapshot system enters a snapshot mode;
judging whether motor vehicles exist in the range of a preset detection road section or not, wherein the preset detection road section comprises a first detection road section positioned between a virtual detection line of the first entrance road section and a virtual detection line of the exit road section, and a second detection road section positioned between a virtual detection line of the second entrance road section and a virtual detection line of the exit road section;
and if the motor vehicles are stored in the range of the preset detection road section and the speed of the motor vehicle of the corresponding detection road section in the preset duration is greater than zero, the snapshot system enters a snapshot judging mode to take a snapshot of the illegal motor vehicle.
According to the alternate traffic intersection snapshot method, the judging whether the motor vehicles exist in the preset detection road section range comprises the following steps:
and identifying whether motor vehicles exist in the range of the preset detection road section or not by using a panoramic identification camera arranged at a preset panoramic identification point.
The method for capturing the alternate passage intersection, which is described above, further comprises:
and measuring and calculating the speed of the motor vehicle in the range of the preset detection road section by using a speed measuring device.
According to the method for capturing the alternate passage intersection, the capturing system enters a capturing judgment mode to capture the offending motor vehicle comprises the following steps:
judging whether the passing sequence value of the motor vehicle on the first entrance road section and the second entrance road section accords with the passing reference sequence value or not when the snapshot system enters a snapshot judging mode;
if the passing sequence value of the corresponding motor vehicle is not matched with the passing reference sequence value, the corresponding motor vehicle is judged to be the illegal motor vehicle.
The method for capturing the alternate passage intersection, which is described above, further comprises:
if it is recognized that the traffic sequence of the respective motor vehicle does not match the traffic reference sequence, the traffic reference sequence is redetermined with the non-matching motor vehicle.
The method for capturing the alternate passage intersection, which is described above, further comprises:
judging whether the motor vehicle on the first entrance road section and the second entrance road section exceeds the speed or not when the snapshot system enters a snapshot judging mode;
if overspeed, the corresponding motor vehicle is judged to be the illegal motor vehicle.
According to the alternate traffic intersection snapshot method, after judging whether motor vehicles exist in the preset detection road section range, the method further comprises:
and if the motor vehicle speed is equal to zero and exceeds a preset time threshold, closing the snapshot equipment.
The invention provides a snapshot device for an alternate-traffic intersection, which is applied to a snapshot system of the alternate-traffic intersection, wherein the alternate-traffic intersection comprises a first entrance road section, a second entrance road section and an exit road section; the device comprises:
the detection module is used for detecting whether the road sections comprise motor vehicles or not by utilizing virtual detection lines respectively arranged on the first entrance road section, the second entrance road section and the exit road section;
the snapshot preparation module is used for entering a snapshot mode when each road section contains a motor vehicle;
the judging module is used for judging whether motor vehicles exist in the range of a preset detection road section or not, and the preset detection road section comprises a first detection road section positioned between a virtual detection line of the first entrance road section and a virtual detection line of the exit road section and a second detection road section positioned between a virtual detection line of the second entrance road section and a virtual detection line of the exit road section;
and the snapshot judging module is used for storing motor vehicles in the range of the preset detection road section, wherein the speed of the motor vehicle of the corresponding detection road section in the preset duration is greater than zero, and the snapshot system enters a snapshot judging mode to snapshot the illegal motor vehicle.
In a third aspect, the present invention provides a computer comprising a processor for implementing the steps of the alternate pass snapshot method described above when executing a computer program stored in memory.
In a fourth aspect, the present invention also provides a storage medium having stored thereon a computer program, characterized in that the computer program when executed by a processor implements the steps of the alternate passage intersection snapshot method as described above.
The technical scheme provided by the embodiment of the invention has the beneficial effects that:
the alternate traffic intersection snapshot method provided by the invention is used for carrying out illegal snapshot on motor vehicles which do not run in an alternate traffic mode or overspeed in the emergency road aiming at the alternate traffic scene, and has a certain positive effect on improving road traffic and urban comprehensive environment management. Meanwhile, the snapshot device can be started to execute the preparation snapshot action and the snapshot action or closed according to the existence condition and the traveling condition of the motor vehicle in the road section relatively intelligently, so that the energy consumption caused by the fact that the snapshot device still works under the condition of not encountering alternate traffic is avoided, and the energy is saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of an alternate pass intersection snapshot method provided by the invention;
FIG. 2 is a schematic diagram of the basic configuration of an alternate junction facility provided by the present invention;
fig. 3 is a schematic diagram of a functional module of the alternate traffic intersection snapshot device provided by the invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, fig. 1 is a flowchart of an alternate traffic intersection snapshot method provided by the invention; fig. 2 is a schematic diagram of the basic configuration of the alternate-passage intersection facility provided by the invention. The alternate passage intersection snapshot method is mainly applied to a snapshot system of the alternate passage intersection, and the snapshot system at least comprises snapshot equipment. It will be appreciated that the alternate passage way comprises two entry road segments and one exit road segment, i.e. comprises: the first entrance road section, the second entrance road section and the exit road section.
As shown in fig. 1, the alternate traffic intersection snapshot method may include the following steps:
s101: and detecting whether the motor vehicle is contained in the road sections by using virtual detection lines respectively arranged on the first entrance road section, the second entrance road section and the exit road section.
In this step, the virtual detection line may be formed by erecting a single sensor such as an intelligent monitoring high-definition camera having a speed measuring function or combining a series of sensors such as a ground sensing coil, a license plate recognition camera and a speed measuring radar, so as to detect the motor vehicle. Here, the sensor preferably employs an intelligent high definition digital monitoring camera.
It can be understood that the virtual detection lines on the first entrance road section, the second entrance road section and the exit road section can be calibrated according to the actual condition of road traffic, such as the road traffic passing speed is generally higher, and the virtual detection lines can be arranged at a position far from the junction; while the traffic speed is generally slower, the virtual detection line can be arranged nearer to the junctionIs a position of (c). Of course, calibration can be performed after other factors are integrated. As shown in FIG. 2, the virtual detection line of the exit road segment may be counted as f 1 The virtual detection line of the first entrance road section can be calculated as f 2 The virtual detection line of the second entrance road section can be calculated as f 3 。
S102: if the motor vehicle is contained on each road section, the snapshot system enters a snapshot mode.
In this step, the snapshot system may include a snapshot mode and a snapshot determination mode, where the snapshot mode corresponds to a snapshot preparation stage, which indicates that the snapshot system is currently primarily provided with a snapshot starting condition; the snapshot judging mode corresponds to the corresponding motor vehicle when the traffic violation of the motor vehicle is judged.
In this step, the snapshot device is started to judge whether the snapshot device has the initial condition, and a logical nand gate expression is adopted, i.e., f= (f) 1 ·f 2 ·f 3 ) Wherein f 1 Corresponds to at f 1 Detecting a detection result obtained on the line; f (f) 2 Corresponds to at f 2 Detecting a detection result obtained on the line; f (f) 3 Corresponds to at f 3 And detecting the detection result obtained on the line. The logic truth table is as follows:
wherein f 1 、f 2 、f 3 When the value is 0, no vehicle passes in the direction, and a snapshot function is not required to be started; f (f) 1 、 f 2 、f 3 The "1" indicates that the motor vehicle is passing, the output result is "1", the condition of snapshot is initially provided, and the function of preparing snapshot can be started at the moment.
S103: and judging whether motor vehicles exist in the range of the preset detection road sections or not, wherein the preset detection road sections comprise a first detection road section positioned between the virtual detection line of the first entrance road section and the virtual detection line of the exit road section, and a second detection road section positioned between the virtual detection line of the second entrance road section and the virtual detection line of the exit road section.
In this step, based on step S102, the motor vehicle within the preset detection road section range is further detected, so as to determine whether there is a motor vehicle within the preset detection road section range. The preset detection road section range can be in a circular range from the junction point as the center of a circle and the radius to the junction entrance of each road section.
In this step, whether motor vehicles exist in the preset detection road section range or not may be identified by using a panoramic recognition camera disposed at a preset panoramic recognition point, and the panoramic recognition camera may be further matched with a speed measuring device to measure and calculate the speed of the motor vehicles in the preset detection road section range.
Here, a panorama identification point monitoring camera with a built-in speed measuring device can be directly adopted to complete corresponding functions, and as the panorama identification point monitoring camera has a global control function, the panorama identification point monitoring camera and the built-in speed measuring device are high in matching. Of course, two relatively independent panorama recognition cameras and speed measuring devices can be adopted to realize corresponding functions.
It will be appreciated that the speed measuring device may be a very simple speed measuring device, such as a switch similar to a light control for a building aisle, which can detect that an automobile is moving.
S104: and if the motor vehicles are stored in the range of the preset detection road section and the speed of the motor vehicle of the corresponding detection road section in the preset duration is greater than zero, the traffic snapshot system enters a snapshot judging mode to take a snapshot of the illegal motor vehicle.
In this step, the motor vehicles with violations may include motor vehicles not driving according to the alternate traffic rule and motor vehicles driving at overspeed, for violations caused by not driving according to the alternate traffic rule: judging whether the passing sequence value of the motor vehicle on the first entrance road section and the second entrance road section accords with the passing reference sequence value or not when the snapshot system enters a snapshot judging mode; if the passing sequence value of the corresponding motor vehicle is not matched with the passing reference sequence value, the corresponding motor vehicle is judged to be the illegal motor vehicle. Meanwhile, when the passing sequence of the corresponding motor vehicle is not matched with the passing reference sequence, the passing reference sequence is redetermined by the non-matched motor vehicle, and the following motor vehicle order judgment work is carried out on the basis point, so that the situation that the following passing motor vehicle is probably judged to be illegal due to the fact that the motor vehicle with one violation is captured can be avoided.
It will be appreciated that in a relatively extreme alternate traffic scenario, when a violation is captured in a preceding motor vehicle, a motor vehicle that should normally pass in the other direction in compliance with the rule will fail, and will cause a motor vehicle in the direction of travel of the preceding motor vehicle that has been violated to pass continuously, the traffic scenario will be continuously captured in a violation manner, and the following motor vehicle will not actually pass in violation, so that the following steps may be further adopted to avoid such a situation:
using a preset snapshot counter to carry out snapshot counting;
if the number of continuous snapshots is greater than the continuous count threshold, determining that the snapshot system enters an abnormal processing mode, wherein the continuous count threshold can be set to 3, that is, when the number of continuous snapshots is greater than 3, the snapshot system can pause the snapshot and enter the abnormal processing mode, and after the road traffic is recovered or confirmed by a person, the snapshot system enters a normal snapshot operation again.
It should be appreciated that the specific continuous count threshold may be sized according to the actual conditions of road traffic. The situation that the vehicle stays briefly can not be too small, for example, the opposite vehicle and the like cannot pass the violation, so that the violation vehicle in the normal running state is easily missed if the vehicle stays too small, the plastic source time is too long if the vehicle stays too large, the manual judgment strength is increased, and important information is easily missed.
More specifically:
for violations caused by driving without alternating traffic rules:
corresponding to step S102, the snapshot system may further perform a logic determination to determine whether the condition for starting the snapshot device is completely satisfied, which is also a logic nand gate logic expression, f (z) =f·f (Q):
wherein f (z) is snapshot with starting condition function expression, 0 indicates no starting, and 1 expression can be started; f is the result of whether vehicles pass through the three roads, f (Q) is the judgment result of whether motor vehicles exist in the alternate pass detection range (namely the preset detection road section range), and the result of '1' indicates that the motor vehicles pass through the range, and '0' indicates that the motor vehicles do not pass through the range.
The snapshot system is subjected to two logic operations, and the obtained result is: in the snapshot range, if no passing motor vehicle or only one direction of passing motor vehicle appears, no alternate passing condition appears, and the snapshot system does not need to start a snapshot function. If the motor vehicles are contained in each road section, the number of the vehicles is not less than 3, the basic condition of alternate passing is met, the snapshot system is switched into a snapshot mode, and corresponding equipment and programs are started.
For violations caused by speeding motor vehicles: determining whether the motor vehicle on the first and second entrance road segments is overspeed; if overspeed, the corresponding motor vehicle is judged to be the illegal motor vehicle. In particular, the snapshot system may also identify motor vehicles that are imported from the first entry road segment, the second entry road segment, and generate a pass number including at least a license plate number, a time stamp, and a sequence value of the entry road, respectively. Thereafter, the respective motor vehicle is identified again at the exit road section to obtain a time stamp of the respective motor vehicle, and then it is determined whether the motor vehicle is overspeed at the present traffic road section by calculating a difference between the time stamp and the current time (when the virtual detection line of the exit road section is reached). Of course, besides the time stamp in the identification pass permit number is used for judging whether overspeed is carried out, a velocimeter can also be directly used for carrying out interval velocimetry on the passing motor vehicle.
More specifically, the pass number may be obtained by: shooting the motor vehicles which are converged at the entrance through the first entrance road section and the second entrance road section by using the snapshot equipment respectively to obtain shooting images, and then adding a time stamp and a sequence value to the motor vehicles on the first entrance road section and the second entrance road section in sequence. Thereafter, the photographed image is subjected to feature extraction to obtain a license plate number of the motor vehicle, and finally the corresponding license plate number, time stamp and sequence value are associated to obtain the pass permit number.
It will be appreciated that the snapshot system may enter a sleep state upon determining that there is no motor vehicle within a predetermined detection path. Of course, the sleep state only indicates that the snapshot program is not started, but does not indicate that license plate recognition and vehicle feature extraction work is stopped. The snapshot is carried out at any moment, and license plate recognition and feature extraction are carried out once on all motor vehicles passing through the virtual detection line of the entrance road section, and a pass license number is generated together with the license plate number.
Here, the sequence values may include a first sequence value and a second sequence value, and the two are different. Wherein the first sequence of values is assigned to motor vehicles passing through the virtual identification line at the entry of the first entry road segment; the second sequence of values is assigned to motor vehicles that pass through the second entry road segment into the virtual identification line at the entry. In particular, the first sequence value may be represented as 0 (representing left order), being a sequence value of motor vehicles entering from the first entry road segment; the second sequence value may be denoted as 1 (representing right order) as the sequence value of the motor vehicle entering from the second entry road segment. The timestamp is a point in time when the motor vehicle arrived at the virtual detection line of the first entry road segment or the virtual detection line of the second entry road segment.
When judging whether the corresponding motor vehicle does not run according to the alternate traffic rule, the method can be realized by identifying the sequence value in the traffic permit number corresponding to the motor vehicle and comparing the sequence value with the traffic reference sequence value, and when the sequence value does not accord with the traffic sequence value, judging that the current motor vehicle does not run according to the alternate traffic rule. Here, the traffic reference sequence value may be obtained according to the alternating traffic priorities determined by the motor vehicles that first enter the first entrance road section and the second entrance road section, and the alternating traffic priorities are determined, that is, the traffic orders are determined, in the actual traffic scene, the traffic flow passing through the road vehicles is not continuous but intermittent, and in the alternating traffic scene at a certain moment point, the traffic flow may be left-order priority, that is, the motor vehicles that first pass through the exit road are driven by the direction of the first entrance road section, where the snapshot system should be set to be left-order priority, that is, the traffic orders of alternating traffic are in the order of left-right-left …. Similarly, after the motor vehicle passes through the wheel, the motor vehicle passing through the exit road first is driven in the direction of the second entrance road section in the right order priority under the alternate passing scene of the next moment, and the snapshot system should be set to be the right order priority, that is, the order of alternate passing is the order of right-left-right …. Based on the above, the snapshot system can automatically make an opposite-mouth reaction according to the traffic situation of an actual road, and can adopt an exclusive or gate logic expression, and the following table is adopted:
in the table, the left lane may correspond to the first entrance road section, and the right lane may correspond to the second entrance road section, that is, when the motor vehicle on the first entrance road section is advanced, the motor vehicle on the first entrance road section is prioritized, and after the current motor vehicle passes, the motor vehicle on the second entrance road section may be advanced, and thereafter, the motor vehicles on the two entrance road sections alternately pass in turn; when the motor vehicle on the second entrance road section is advanced, the motor vehicle on the second entrance road section is prioritized in the same way.
It can be appreciated that the snapshot system can simultaneously judge whether the corresponding motor vehicle is not driving according to the alternate traffic rule to cause the violation and overspeed violation.
In the step, if the speed of the motor vehicle is equal to zero and exceeds a preset time threshold, the snapshot equipment is closed, and no snapshot operation is performed. It should be appreciated that while the snapshot device is turned off, other steps such as generating a pass number are still performed normally.
The alternate traffic intersection snapshot method provided by the invention is used for carrying out illegal snapshot on motor vehicles which do not run in an alternate traffic mode or overspeed in the emergency road aiming at the alternate traffic scene, and has a certain positive effect on improving road traffic and urban comprehensive environment management. Meanwhile, the snapshot device can be started to execute the preparation snapshot action and the snapshot action or closed according to the existence condition and the traveling condition of the motor vehicle in the road section relatively intelligently, so that the energy consumption caused by the fact that the snapshot device still works under the condition of not encountering alternate traffic is avoided, and the energy is saved.
In the invention, the snapshot system can also set a time period in the range of the through snapshot segment, namely a time window period (t). Referring to fig. 2, the time window period (t) is determined by calculating t= [ t1 to tn ] units: in seconds, t+.0 or t+.infinity, 0 means that the vehicle speed is infinite or the length of the road is 0.t is calculated by the formula = [ distance between f1 and f2 or f1 and f3 +.
For ease of understanding, assuming road traffic sets the maximum speed of the alternating traffic segments to 36 Km/h, i.e., 10 meters/second, and the minimum speed of speed to 9 Km/h, i.e., 2.5 meters/second, by the measurement calculation: the distance between f1 and f2 is 30 m, and f1 to f3 are 36 m, so that:
t (upper limit) =30 m/10 m/s=3.0 s. The distance between f1 and f3 is larger than the distance between f1 and f2, the calculated distance is 30 m, namely, after entering the alternate traffic detection range, vehicles passing in less than 3.0 seconds are judged to belong to illegal overspeed by the system.
t (lower limit) =36 m/2.5 m/s=14.4 s. The distance between f1 and f3 is larger than the distance between f1 and f2, and the calculated distance is 36 meters. That is, after entering the alternate pass detection range, vehicles that have not passed within more than 14.4 seconds are determined by the system to be in focus.
It will be appreciated that the snapshot system may also set a longer time scale, for example, 30 seconds later, and the system determines that the road is congested, and if the vehicle speed is only zero and other vehicles are running normally, the system gives a vehicle fault alarm.
The motor vehicle can be judged to be normal by the road with the alternate passing detection range provided with the virtual detection line within 3.0 to 14.4 (seconds).
Regarding the threshold value of the time scale, reasonable values should be given according to the traffic situation of the road, and reasonable settings should be given by combining the historical data statistics of the road, including different thresholds in different time periods in the day.
In the invention, the speed measuring device can be used for acquiring the speed of the motor vehicle on each road section, wherein:
if the speed of the motor vehicle on the exit road section is continuously measured to be zero in the time range, indicating that traffic jam occurs, and suspending the operation of the snapshot equipment of the snapshot system;
if the speed of the motor vehicle on the exit road section is measured to be not zero, the road traffic is indicated to be normal, and the snapshot equipment of the snapshot system continues to work;
if the speed of the motor vehicle on the first entrance road section or the second entrance road section is continuously measured to be zero in the time range, indicating that the traffic condition occurs on the first entrance road section or the second entrance road section, and suspending the operation of the snapshot equipment of the snapshot system;
if the speed of the motor vehicle on the first entrance road section or the second entrance road section is detected to be recovered, the road traffic is indicated to be recovered to be normal, and the snapshot equipment of the snapshot system continues to work;
if the speeds of the motor vehicles on the first entrance road section, the second entrance road section or the exit road section are zero in continuous detection under a longer time scale, the condition that traffic accidents occur is indicated, the snapshot system sends out abnormal warning, at the moment, a command control center can remotely call images or send out person on-site investigation, the traffic is resumed after the traffic accidents are solved, a command for restarting the system is sent out by the command control center or on-site;
the preset snapshot counter is used for conducting snapshot counting when motor vehicles on the first entrance road section and the second entrance road section are in failure. When the count of the preset snapshot counter exceeds the continuous count threshold, the snapshot system sends out an abnormal alarm, then the snapshot pauses to work, the video stream appearing in the continuous snapshot is uploaded and is subjected to abnormal processing, after the video stream is determined manually to be correct, whether the rule is violated is determined, and a command for resuming the snapshot to continue to work is sent out for the snapshot system.
The snapshot system has a remote or on-site manual wake-up and restart function and is used for quickly recovering and starting the system when being interfered by weather or unpredictable factors, the snapshot system has a blacklist wake-up alarm function, after license plate information of a motor vehicle is obtained, the snapshot system is compared with a background blacklist for analysis, and if the license plate information is matched with the background blacklist, a popup window alarm of the blacklist is sent to a control center.
Referring to fig. 3, a functional module diagram of the alternate passage intersection snapshot device provided by the invention is shown. The alternate-traffic intersection snapshot device 100 is applied to a snapshot system of an alternate-traffic intersection, wherein the alternate-traffic intersection comprises a first entrance road section, a second entrance road section and an exit road section; the device comprises:
the detection module 11 is mainly used for detecting whether the motor vehicle is contained in the road sections by using virtual detection lines respectively arranged on the first entrance road section, the second entrance road section and the exit road section.
The snapshot preparation module 12 is mainly used for entering a snapshot mode when the motor vehicle is contained on each road section.
The judging module 13 is mainly configured to judge whether motor vehicles exist in a range of preset detection road segments, where the preset detection road segments include a first detection road segment located between a virtual detection line of the first entrance road segment and a virtual detection line of the exit road segment, and a second detection road segment located between a virtual detection line of the second entrance road segment and a virtual detection line of the exit road segment.
The snapshot determining module 14 is mainly configured to store motor vehicles in the preset detection road section range, and the speed of the motor vehicle in the corresponding detection road section in the preset duration is greater than zero, and the snapshot system enters a snapshot determining mode to take a snapshot of the offending motor vehicle.
It should be understood that after the corresponding modules perform the corresponding functions, the effect achieved may be the same as the aforementioned alternate traffic intersection snapshot method, and thus will not be described herein.
It may be appreciated that the alternate traffic intersection snapshot device 100 includes, but is not limited to, the above-mentioned functional modules, and may further include a license plate recognition module for recognizing a license plate of a motor vehicle, an overspeed judgment module for overspeed judgment of a passing motor vehicle, an abnormality processing module for processing a road or a situation of a vehicle, a road condition detection module, and the like, where the road condition detection module mainly uses virtual detection lines respectively provided at a first entrance road segment, a second entrance road segment, and an exit road segment to detect whether the road segment includes a motor vehicle; and the speed measuring device matched with the panoramic recognition camera is utilized to recognize whether the motor vehicle moves within a preset detection range.
Furthermore, the present invention provides a computer comprising a processor for implementing the steps in the alternate pass snapshot method described above when executing a computer program stored in a memory.
The processor may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf Programmable gate arrays (FPGA) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like that is a control center of the computer device, connecting various parts of the overall computer device using various interfaces and lines.
The memory may be used to store the computer program and/or modules, and the processor may implement various functions of the computer device by running or executing the computer program and/or modules stored in the memory, and invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function, and the like; the storage data area may store data created according to the use of the cellular phone, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, smart Media Card (SMC), secure Digital (SD) Card, flash Card (Flash Card), at least one disk storage device, flash memory device, or other volatile solid-state storage device.
Furthermore, the present invention provides a storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the aforementioned alternate passage intersection snap shot method.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (7)
1. The alternate traffic intersection snapshot method is applied to a snapshot system of an alternate traffic intersection, and the alternate traffic intersection comprises a first entrance road section, a second entrance road section and an exit road section; characterized in that the method comprises:
detecting whether the road section comprises a motor vehicle or not by using virtual detection lines respectively arranged on the first entrance road section, the second entrance road section and the exit road section; the snapshot system comprises a snapshot mode and a snapshot judging mode; the snapshot mode is a snapshot preparation stage; the snapshot judging mode is to take a snapshot of the corresponding motor vehicle when the traffic violation of the motor vehicle is judged;
if the motor vehicles are contained on each road section, the snapshot system enters the snapshot mode;
judging whether motor vehicles exist in the range of a preset detection road section or not, wherein the preset detection road section comprises a first detection road section positioned between a virtual detection line of the first entrance road section and a virtual detection line of the exit road section, and a second detection road section positioned between a virtual detection line of the second entrance road section and a virtual detection line of the exit road section;
if all the motor vehicles exist in the range of the preset detection road section and the speed of the motor vehicle of the corresponding detection road section in the preset duration is greater than zero, the snapshot system enters the snapshot judging mode to snapshot the illegal motor vehicle, and the method comprises the following steps:
judging whether the motor vehicle on the first entrance road section and the second entrance road section exceeds the speed or not when the snapshot system enters a snapshot judging mode; the overspeed judgment adopts the following mode: identifying motor vehicles entering from the first entrance road section and the second entrance road section and generating a pass number, wherein the pass number at least comprises a license plate number, a time stamp and a sequence value of an entrance road; the license plate number is obtained by carrying out feature extraction after shooting the motor vehicle; identifying the respective motor vehicle again at the exit road segment to obtain a time stamp of the respective motor vehicle; determining whether the motor vehicle is overspeed on the current traffic road segment by calculating the difference between the time stamp and the virtual detection line to the exit road segment; if overspeed is carried out, judging that the corresponding motor vehicle is a violation motor vehicle;
judging whether the passing sequence value of the motor vehicle on the first entrance road section and the second entrance road section accords with the passing reference sequence value or not when the snapshot system enters a snapshot judging mode; if the passing sequence value of the corresponding motor vehicle is not matched with the passing reference sequence value, judging that the corresponding motor vehicle is a illegal motor vehicle; the pass reference sequence is redetermined with non-conforming motor vehicles.
2. The alternate passage way cross snapshot method according to claim 1, wherein the determining whether motor vehicles are all stored in the preset detection road section range comprises:
and identifying whether motor vehicles exist in the range of the preset detection road section or not by using a panoramic identification camera arranged at a preset panoramic identification point.
3. The alternate passage intersection snapshot method of claim 2, further comprising:
and measuring and calculating the speed of the motor vehicle in the range of the preset detection road section by using a speed measuring device.
4. The alternate passage way cross snapshot method according to claim 1, wherein after the determining whether there are all motor vehicles within the preset detection section range, the method further comprises:
and if the motor vehicle speed is equal to zero and exceeds a preset time threshold, closing the snapshot equipment.
5. The alternate traffic intersection snapshot device is applied to a snapshot system of an alternate traffic intersection, and the alternate traffic intersection comprises a first entrance road section, a second entrance road section and an exit road section; characterized in that the device comprises:
the detection module is used for detecting whether the road sections comprise motor vehicles or not by utilizing virtual detection lines respectively arranged on the first entrance road section, the second entrance road section and the exit road section; the snapshot system comprises a snapshot mode and a snapshot judging mode; the snapshot mode is a snapshot preparation stage; the snapshot judging mode is to take a snapshot of the corresponding motor vehicle when the traffic violation of the motor vehicle is judged;
the snapshot preparation module is used for entering the snapshot mode when the motor vehicle is contained in each road section;
the judging module is used for judging whether motor vehicles exist in the range of a preset detection road section or not, and the preset detection road section comprises a first detection road section positioned between a virtual detection line of the first entrance road section and a virtual detection line of the exit road section and a second detection road section positioned between a virtual detection line of the second entrance road section and a virtual detection line of the exit road section;
the snapshot judging module is used for storing motor vehicles in the range of the preset detection road section, the speed of the motor vehicle of the corresponding detection road section in the preset duration is greater than zero, and the snapshot system enters the snapshot judging mode to snapshot the illegal motor vehicle, and the snapshot judging module comprises the following steps:
judging whether the motor vehicle on the first entrance road section and the second entrance road section exceeds the speed or not when the snapshot system enters a snapshot judging mode; the overspeed judgment adopts the following mode: identifying motor vehicles entering from the first entrance road section and the second entrance road section and generating a pass number, wherein the pass number at least comprises a license plate number, a time stamp and a sequence value of an entrance road; the license plate number is obtained by carrying out feature extraction after shooting the motor vehicle; identifying the respective motor vehicle again at the exit road segment to obtain a time stamp of the respective motor vehicle; determining whether the motor vehicle is overspeed on the current traffic road segment by calculating the difference between the time stamp and the virtual detection line to the exit road segment; if overspeed is carried out, judging that the corresponding motor vehicle is a violation motor vehicle;
judging whether the passing sequence value of the motor vehicle on the first entrance road section and the second entrance road section accords with the passing reference sequence value or not when the snapshot system enters a snapshot judging mode; if the passing sequence value of the corresponding motor vehicle is not matched with the passing reference sequence value, judging that the corresponding motor vehicle is a illegal motor vehicle; the pass reference sequence is redetermined with non-conforming motor vehicles.
6. A computer comprising a processor for implementing the steps of the alternate pass crossing snapshot method of any one of claims 1-4 when executing a computer program stored in memory.
7. A storage medium having stored thereon a computer program which when executed by a processor performs the steps of the alternate passage intersection snapshot method of any one of claims 1-4.
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| JP2015099508A (en) * | 2013-11-19 | 2015-05-28 | 東芝テック株式会社 | Vehicular passage control system and vehicular passage control program |
| CN104361753B (en) * | 2014-11-26 | 2017-02-22 | 浙江宇视科技有限公司 | Method and device for obtaining evidences of rule and regulation breaking of vehicles not running in alternating mode |
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| CN113851001B (en) * | 2021-09-17 | 2023-08-29 | 同济大学 | Multi-lane merging illegal automatic auditing method, system, device and storage medium |
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