CN111524370A - Road section traffic flow and vehicle statistical method - Google Patents
Road section traffic flow and vehicle statistical method Download PDFInfo
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- CN111524370A CN111524370A CN202010381184.6A CN202010381184A CN111524370A CN 111524370 A CN111524370 A CN 111524370A CN 202010381184 A CN202010381184 A CN 202010381184A CN 111524370 A CN111524370 A CN 111524370A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/065—Traffic control systems for road vehicles by counting the vehicles in a section of the road or in a parking area, i.e. comparing incoming count with outgoing count
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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
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
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Abstract
The invention discloses a road traffic flow and vehicle statistical method, and relates to the technical field of intelligent traffic. The road traffic flow and vehicle statistical method comprises the following steps: setting inherent data such as the length, unit time length and the like of the detected road section; triggering a first counting device to acquire the number of vehicles entering a road section in unit time; simultaneously triggering a second counting device to acquire the number of vehicles running out of the road section in unit time; and analyzing and processing the number of vehicles entering and exiting the road section in the unit time to obtain the instantaneous number of the vehicles in the road section and the traffic flow of the road section, and reporting the passing state of the road section in real time. The scheme of the application detects and processes the number of vehicles passing in and out of the road section in real time, and has the advantages of low cost, simplicity and easiness in installation, small data capacity, high transmission speed and convenience in large-scale coverage.
Description
Technical Field
The application relates to the technical field of intelligent traffic, in particular to a road traffic flow and vehicle statistical method.
Background
With the continuous progress of national economy and the rapid development of vehicles, the attention and importance of traffic safety are also increasing. The traffic jam problem is more and more serious, and the management is difficult, and in the face of these traffic problems, intelligent traffic system takes place at the same time, and the potential of the existing traffic infrastructure is exerted to the maximum extent, and the new generation of intelligent traffic equipment is combined, so that the future traffic is more intelligent and reasonable. Traffic flow and vehicle statistics are also important as part of an intelligent traffic system. The traditional method is to lay magnetic induction coils under the road, and the method has high installation cost because the coil laying needs on-site construction, the coil investment is large, the construction area is large, and a large amount of manpower and material resources are consumed. The current novel method is through video detection and analysis, and the method also has the defects of high cost and difficult large-area coverage.
Disclosure of Invention
The application provides a method for counting the traffic flow and the number of vehicles on a road section, and the defects of the prior art are overcome.
The invention relates to a method for counting the traffic flow and the number of vehicles on a road section, which is used for setting inherent data such as the length, unit duration and the like of a detected road section;
triggering a first counting device to acquire the number of vehicles entering a road section in unit time;
simultaneously triggering a second counting device to acquire the number of vehicles running out of the road section in unit time;
analyzing and processing the number of vehicles entering and leaving the road section in the unit time to obtain the instantaneous number of the vehicles in the road section and the traffic flow of the road section;
and reporting the road section passing state in real time.
Optionally, the obtaining the instantaneous vehicle number of the road section and the traffic flow of the road section further includes:
instantaneous number of vehicles z of said road sectiont=at-bt+zt-1Wherein z ist-1For instantaneous vehicles on the road section in the preceding unit of time, z0=0。
Optionally, the obtaining the instantaneous vehicle number of the road section and the traffic flow of the road section further includes:
and the traffic flow p = a of the road section in the unit time is counted, and the traffic flow p = of the road section in all the time is counted
at，t
（1~n）
Optionally, after obtaining the instantaneous vehicle number of the road section and the traffic flow of the road section, the method further includes:
and sending the road section running condition information to a central cloud platform to trigger the central cloud platform to conduct command and regulation.
Optionally, after obtaining the instantaneous vehicle number of the road section and the traffic flow of the road section, the method further includes:
and sending a short message to a mobile phone user to inform the road section operation condition information.
The invention has the advantages of low cost, simple installation, small data capacity, high transmission speed and convenience for large-scale coverage.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a flowchart of a method for counting traffic flow and vehicle quantity on a road section according to an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when …" or "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted depending on the context to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
The technology in the embodiments of the present application is described below with reference to the accompanying drawings of the embodiments of the present application
While the embodiments described are in the context of a complete and clear description, it is to be understood that the embodiments described are only some of the embodiments of the present application and not all of them. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and it will be apparent to those of ordinary skill in the art that the present application is not limited by the specific embodiments disclosed below.
Examples
The embodiment of the application provides a method for counting the traffic flow and the number of vehicles on a road section, and fig. 1 is a flow chart of the method for counting the traffic flow and the number of vehicles on the road section, which is detailed as follows:
firstly, setting inherent data such as the length S, unit time length t and the like of a detected road section;
optionally, the detected road section may be a road such as a country road, a county road, an expressway, a tunnel, or another road on which the traffic flow or the number of vehicles needs to be counted, the length S of the detected road section may be set according to different road types, for example, S =5Km may be set on an expressway, S =3Km may be set on a country road, S =2Km may be set on a tunnel, or may be set according to specific conditions of different road sections, the unit time length t may be set to a minimum value according to the longest response time of the system, so that the road condition in each time section may be more accurately reflected.
Step two, triggering a first counting device to acquire the number a of vehicles entering the road section in unit timet；
Optionally, the first counting device is a counting device with low cost, easy construction and installation and high accuracy, such as laser counting, magnetic induction counting and the like, and when a vehicle enters a detection area, the laser probe detects that the trigger counter counts when the laser counting device detects that the vehicle enters the detection area, wherein the laser probe is a trigger device, the counter is a simple single chip device, and the number a of the vehicles entering the detection area in unit time is countedt. Wherein, different counting devices are composed of different trigger mechanisms and the same counting equipment.
Step three, simultaneously triggering a second counting device to obtain the number b of vehicles on the road section which is driven out in unit timet；
Optionally, the second counting device and the first device may be the same type of counting device, and the counting method is also the counting method shown in the first counting device, and when a vehicle exits the detection area, the counting device is triggered to count, and the vehicle is acquired and countedThe number b of vehicles moving out of the detection area per unit time synchronized by the first counting meanst. In order to ensure the counting synchronism of the first counting device and the second counting device, two devices are required to be adjusted in a joint mode, the initialization time is guaranteed to be consistent, and the set unit time is guaranteed to be consistent.
Step four, analyzing and processing the number of vehicles passing in and out of the road section in unit time to obtain the instantaneous number z of vehicles passing through the road sectiontAnd the traffic flow P of the road section;
optionally, the instantaneous number of vehicles z of the road sectiont=at-bt+zt-1Wherein z ist-1For instantaneous vehicles on the road section in the preceding unit of time, z0=0, number of vehicles whose zone is initialized.
Optionally, the traffic flow p = a of the road segment in the unit time is calculated, and the traffic flow p = of the road segment in all the time is counted
at，t
(1-n), namely summing the traffic flow of the road section in each unit time, and obtaining the traffic flow in any time according to the algorithm, such as one hour, one day, one week, one month and the like.
Step five: and reporting the road section passing state in real time.
Optionally, after obtaining the instantaneous vehicle number of the road section and the traffic flow of the road section, the method further includes:
and sending the road section running condition information to a central cloud platform to trigger the central cloud platform to conduct command and regulation.
Optionally, after obtaining the instantaneous vehicle number of the road section and the traffic flow of the road section, the method further includes:
and sending a short message to a mobile phone user to inform the road section operation condition information.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present application, and they should be construed as being included therein.
Claims (4)
1. A road section traffic flow and vehicle statistical method is characterized by comprising the following steps:
the method comprises the following steps: setting inherent data such as the length (S) and unit time length (t) of a detected road section;
step two: triggering a first counting device to acquire the number (a) of vehicles entering a road section per unit timet）；
Step three: simultaneously triggering a second counting device to acquire the number (b) of vehicles on the outgoing road section per unit timet）；
Step four: analyzing and processing the number of vehicles entering and leaving the road section in the unit time to obtain the instantaneous number of vehicles (z) in the road sectiont) And a traffic flow (P) of the section;
step five: and reporting the road section passing state in real time.
2. The road traffic flow and vehicle statistical method according to claim 1, wherein the obtaining of the instantaneous vehicle number of the road section and the traffic flow of the road section further comprises:
instantaneous number of vehicles z of said road sectiont=at-bt+zt-1Wherein z ist-1For instantaneous vehicles on the road section in the preceding unit of time, z0=0。
3. The road traffic flow and vehicle statistical method according to claim 1 or 2, wherein the obtaining of the instantaneous vehicle number of the road section and the traffic flow of the road section further comprises:
the sheetThe traffic flow p = a of the road section in the time is calculated, and the traffic flow p = of the road section in all the time is counted
at，t
（1~n）
The road traffic flow and vehicle statistical method according to claim 1 or 2, wherein the obtaining of the instantaneous vehicle number of the road section and the traffic flow of the road section further comprises:
and sending the road section running condition information to a central cloud platform to trigger the central cloud platform to conduct command and regulation.
4. The road traffic flow and vehicle statistical method according to claim 1 or 2, wherein the obtaining of the instantaneous vehicle number of the road section and the traffic flow of the road section further comprises:
and sending a short message to a mobile phone user to inform the road section operation condition information.
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| CN202010381184.6A CN111524370A (en) | 2020-05-08 | 2020-05-08 | Road section traffic flow and vehicle statistical method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113257006A (en) * | 2021-07-07 | 2021-08-13 | 中铁二十三局集团有限公司 | Traffic directing system for tunnel construction transport vehicle |
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