CN113129609B - Traffic signal lamp timing method and traffic signal equipment - Google Patents
Traffic signal lamp timing method and traffic signal equipment Download PDFInfo
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- CN113129609B CN113129609B CN201911393424.8A CN201911393424A CN113129609B CN 113129609 B CN113129609 B CN 113129609B CN 201911393424 A CN201911393424 A CN 201911393424A CN 113129609 B CN113129609 B CN 113129609B
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Abstract
The invention provides a traffic signal lamp timing method and traffic signal equipment, wherein the method comprises the following steps: acquiring traffic data and passenger flow data of at least one road direction of a target intersection; and determining a timing strategy of the traffic signal lamp of the target intersection according to the traffic data and the passenger flow data. The method can solve the problem that the prior timing scheme of the traffic signal lamp cannot well support the priority of the bus, and is favorable for optimizing guidance and jam relief of urban traffic by determining the timing strategy of the traffic signal lamp by combining traffic flow data and passenger flow data.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a traffic signal lamp timing method and traffic signal equipment.
Background
In recent years, with the acceleration of urbanization process and the rapid increase of the number of motor vehicles, the traditional fixed signal timing control scheme cannot meet the requirement of frequent change of traffic conditions, so that an efficient, flexible and intelligent traffic signal timing control scheme is needed to ensure the smooth traffic of traffic flows at urban intersections.
The current signal timing scheme is based on traffic flow detection of all road directions at a road junction, and algorithm processing is carried out to realize dynamic adjustment of signal timing, and the traffic flow detection technology comprises the following steps: camera video detection, traffic radar detection, coil detection, and the like. The detection technologies can well detect traffic flow conditions in the road direction so as to realize traffic signal timing based on the traffic flow conditions, but the timing scheme of the traffic signal lamp cannot well support a bus priority strategy.
Disclosure of Invention
The invention provides a traffic signal lamp timing method and traffic signal equipment, and solves the problem that the existing timing scheme of a traffic signal lamp cannot well support bus priority.
In order to achieve the above object, the embodiment of the present invention is implemented as follows:
in a first aspect, an embodiment of the present invention provides a traffic signal light timing method, including:
acquiring traffic data and passenger flow data of at least one road direction of a target intersection;
and determining a timing strategy of the traffic signal lamp of the target intersection according to the traffic data and the passenger flow data.
Optionally, the acquiring traffic data and passenger flow data of at least one road direction corresponding to the target intersection includes:
In a first time period, acquiring the number of vehicles passing through at least one road direction corresponding to the target intersection and the passenger carrying number of each first type of vehicle;
determining the traffic data according to the number of the vehicles;
and determining the passenger flow data according to the passenger carrying quantity of the first type of vehicle.
Optionally, the acquiring traffic data and passenger flow data of at least one road direction corresponding to the target intersection includes:
in a first time period, acquiring the number of all vehicles passing by at least one road direction corresponding to the target intersection, the number of vehicles of a second type and the first passenger carrying number of each first type of vehicle;
determining the traffic data according to the number of all vehicles;
determining a second passenger carrying quantity of the second type of vehicle according to the vehicle quantity of the second type of vehicle and the preset passenger carrying quantity of the second type of vehicle;
and determining the passenger flow data according to the first passenger carrying quantity of the first type of vehicle and the second passenger carrying quantity of the second type of vehicle.
Optionally, the determining a timing strategy of a traffic light of the target intersection according to the traffic data and the passenger flow data includes:
Determining traffic data corresponding to each road direction according to traffic data and passenger flow data corresponding to each road direction of the target intersection;
and determining a time distribution strategy of the traffic signal lamp of the target intersection according to the flow data corresponding to each road direction.
Optionally, the determining, according to the traffic data and the passenger flow data respectively corresponding to each road direction of the target intersection, the traffic data respectively corresponding to each road direction includes:
determining a reference value of passenger flow data corresponding to a first road direction according to the passenger carrying number reference degree and the passenger flow data corresponding to the first road direction;
determining flow data in the first road direction according to the reference value of passenger flow data corresponding to the first road direction and the traffic data in the first road direction; and the first road direction is any one of at least one road direction corresponding to the target intersection.
Optionally, before determining the reference value of the passenger flow data corresponding to the first road direction according to the passenger number reference degree and the passenger flow data corresponding to the first road direction, at least one of the following is further included:
Determining the passenger carrying number reference degree according to the traffic flow data;
and determining the passenger carrying number reference degree corresponding to the first time period according to the corresponding relation between the passenger carrying number reference degree and the time periods.
Optionally, the determining a reference value of passenger flow data corresponding to a first road direction according to the passenger number reference degree and passenger flow data corresponding to the first road direction includes:
and determining a reference value of passenger flow data corresponding to a first road direction according to the passenger number reference degree and the passenger flow data corresponding to the first road direction aiming at the passenger flow data corresponding to the first road direction in a preset time period.
In a second aspect, an embodiment of the present invention provides a traffic signal apparatus, including: a transceiver, a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
acquiring traffic data and passenger flow data of at least one road direction of a target intersection;
and determining a timing strategy of the traffic signal lamp of the target intersection according to the traffic data and the passenger flow data.
Optionally, the processor implements the following steps when executing the computer program:
In a first time period, acquiring the number of vehicles passing by at least one road direction corresponding to the target intersection and the passenger carrying number of each first type of vehicle;
determining the traffic data according to the number of the vehicles;
and determining the passenger flow data according to the passenger carrying quantity of the first type of vehicle.
Optionally, the processor implements the following steps when executing the computer program:
in a first time period, acquiring the number of all vehicles passing by at least one road direction corresponding to the target intersection, the number of vehicles of a second type and the first passenger carrying number of each first type of vehicle;
determining the traffic data according to the number of all vehicles;
determining a second passenger carrying quantity of the second type of vehicle according to the vehicle quantity of the second type of vehicle and the preset passenger carrying quantity of the second type of vehicle;
and determining the passenger flow data according to the first passenger carrying quantity of the first type of vehicle and the second passenger carrying quantity of the second type of vehicle.
Optionally, the processor implements the following steps when executing the computer program:
determining traffic data corresponding to each road direction according to traffic data and passenger flow data corresponding to each road direction of the target intersection;
And determining a timing strategy of the traffic signal lamp of the target intersection according to the flow data corresponding to each road direction.
Optionally, the processor implements the following steps when executing the computer program:
determining a reference value of passenger flow data corresponding to a first road direction according to the passenger carrying number reference degree and the passenger flow data corresponding to the first road direction;
determining flow data in the first road direction according to the reference value of passenger flow data corresponding to the first road direction and the traffic data in the first road direction; the first road direction is any one of at least one road direction corresponding to the target intersection.
Optionally, the processor, when executing the computer program, performs at least one of the following steps:
determining the passenger carrying number reference degree according to the traffic flow data;
and determining the passenger number reference degree corresponding to the first time period according to the corresponding relation between the passenger number reference degree and the time period.
Optionally, the processor implements the following steps when executing the computer program:
and determining a reference value of passenger flow data corresponding to a first road direction according to the passenger carrying number reference degree and the passenger flow data corresponding to the first road direction aiming at the passenger flow data corresponding to the first road direction in a preset time period.
In a third aspect, an embodiment of the present invention further provides a traffic signal device, including:
the acquisition module is used for acquiring traffic data and passenger flow data of at least one road direction of a target intersection;
and the processing module is used for determining the timing strategy of the traffic signal lamp of the target intersection according to the traffic data and the passenger flow data.
In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the traffic signal timing method as described above.
The technical scheme of the invention has the beneficial effects that:
in the embodiment of the invention, the problem that the prior timing scheme of the traffic light cannot well support the priority of buses can be solved by acquiring the traffic data and the passenger flow data of at least one road direction of the target intersection and determining the timing strategy of the traffic light of the target intersection according to the traffic data and the passenger flow data, and the mode of determining the timing strategy of the traffic light by combining the traffic data and the passenger flow data is favorable for optimizing guidance and jam relief of urban traffic, thereby better meeting the travel demands of people.
Drawings
FIG. 1 illustrates one of the flow diagrams of a traffic signal timing method in accordance with an embodiment of the present invention;
FIG. 2 is a schematic diagram of one of the target intersections of the embodiment of the present invention;
FIG. 3 is a second flowchart of a traffic signal timing method according to an embodiment of the present invention;
FIG. 4 shows a block diagram of calculating passenger flow data for different roads in an embodiment of the invention;
FIG. 5 is a second schematic diagram of a target intersection according to an embodiment of the invention;
FIG. 6 illustrates a block diagram of a traffic signal apparatus of an embodiment of the present invention;
fig. 7 is a block diagram showing a structure of a traffic signal apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
In addition, in the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.
Specifically, the embodiment of the invention provides a traffic signal lamp timing method, which solves the problem that the existing timing scheme of a traffic signal lamp cannot well support bus priority.
As shown in fig. 1, an embodiment of the present invention provides a traffic signal lamp timing method, which specifically includes the following steps:
step 11: and acquiring traffic data and passenger flow data of at least one road direction of the target intersection.
Step 12: and determining a timing strategy of a traffic signal lamp of the target intersection according to the traffic data and the passenger flow data.
Optionally, an intersection has at least one road direction, for example: the position of a traffic signal lamp on a straight road or a road with a curve can be called as an intersection, and the extending direction of the road can be called as a road direction; as shown in fig. 2, a schematic diagram of a target intersection is shown, where the target intersection includes two road directions, i.e. a north-south road direction and a east-west road direction; of course, the target intersection in the embodiment of the present invention may also be a Y-shaped intersection, a t-shaped intersection, a roundabout exit, and the like, which is not limited in the present invention.
Optionally, the traffic data of at least one road direction of the target intersection may be detected by a camera, such as video detection, traffic radar detection, and coil detection. For example: installing traffic radars in each road direction of the intersection to count traffic data in each road direction; of course, other manners may be adopted to obtain the traffic data, and the invention is not limited thereto.
Optionally, the passenger flow data of at least one road direction at the target intersection may be obtained through a Vehicle-mounted terminal in combination with a Vehicle to electrical networking (V2X) technology. As shown in fig. 2, a V2X terminal may be deployed on a vehicle (e.g., a bus or other vehicle with a large carrying capacity), so that the number of passengers carried by the vehicle may be sent to a traffic signal device at a roadside based on communication interaction between the V2X terminal on the vehicle and the traffic signal device at the roadside, and thus, the number of passengers carried by the vehicle in each road direction at a target intersection may be obtained by combining with the V2X technology, and then passenger flow data corresponding to each road direction is obtained by statistics; of course, other manners may be adopted to obtain the passenger flow data, and the invention is not limited thereto.
According to the scheme, the time distribution strategy of the traffic signal lamp of the target intersection is determined according to the traffic data and the passenger flow data by acquiring the traffic data and the passenger flow data of at least one road direction of the target intersection, so that the problem that the current time distribution strategy of the traffic signal lamp cannot well support the priority of buses can be solved, and the mode of determining the time distribution strategy of the traffic signal lamp by combining the traffic data and the passenger flow data is favorable for the optimized guidance and congestion relief of urban traffic, so that the travel demand of people can be better met.
Optionally, as an implementation manner, the step 11 may specifically include:
in a first time period, acquiring the number of vehicles passing through at least one road direction corresponding to the target intersection and the passenger carrying number of each first type of vehicle;
determining the traffic data according to the number of the vehicles;
and determining the passenger flow data according to the passenger carrying quantity of the first type of vehicle.
The first type of vehicle may be a vehicle, such as a bus, that has a passenger capacity greater than a first preset number. The first time period may be a predetermined statistical time period, such as any one of a plurality of time periods divided into a day, a week, etc., and the present invention is not particularly limited.
Referring to fig. 2, as for the east-west road direction: and detecting the number of vehicles passing through the target intersection by the traffic radar in a first time period, so that the traffic data of the east-west road direction in the first time period can be obtained.
A V2X terminal can be arranged on the first type vehicle to send the number of the passengers carried by the vehicle to the traffic signal equipment, so that the traffic signal equipment can obtain the passenger flow data of the east-west road direction in the first time period by counting the passing first type vehicles in the first time period and the corresponding number of the passengers (for example, the sum of the number of the passengers of each first type vehicle can be used as the passenger flow data); in addition, when the first type of vehicle is a bus, the number of passengers carried by each first type of vehicle may be obtained through a card-swiping riding record in the bus or image data collected by a vehicle-mounted camera, which is not limited in the present invention.
Of course, the traffic data and the passenger flow data in the north-south road direction can also be obtained in the same manner as described above, that is, the traffic data and the passenger flow data in each road direction of the target intersection can be obtained in the manner described above, and details are not described here.
In the embodiment, the passenger flow data in the first time period is counted by checking the passenger carrying quantity of the vehicles with the passenger carrying quantity larger than the first preset quantity, so that the realization of the passenger flow data statistics can be ensured. Therefore, the timing scheme of the traffic signal lamp can be configured based on the traffic data and the passenger flow data obtained by counting aiming at the first type of vehicles, so that the problem that the existing timing scheme of the traffic signal lamp cannot well support the priority of the bus is solved, the urban traffic is favorably optimized, guided and blocked up and solved, and the travel requirements of people are better met.
Optionally, as another implementation manner, the step 11 may further specifically include:
in a first time period, acquiring the number of all vehicles passing by at least one road direction corresponding to the target intersection, the number of vehicles of a second type and the first passenger carrying number of each first type of vehicle;
Determining the traffic flow data according to the number of all vehicles;
determining a second passenger carrying quantity of the second type of vehicle according to the vehicle quantity of the second type of vehicle and the preset passenger carrying quantity of the second type of vehicle;
and determining the passenger flow data according to the first passenger carrying quantity of the first type of vehicle and the second passenger carrying quantity of the second type of vehicle.
Wherein the first type of vehicle may be a vehicle with a certified passenger capacity greater than a first preset number; the second type of vehicle may be a vehicle with a passenger capacity less than or equal to a second preset number; wherein the first preset number and the second preset number may be the same or different; for example: the first type of vehicle may be a bus or the like and the second type of vehicle may be a minibus or the like.
Referring to fig. 2, as for the east-west road direction: and detecting the number of vehicles passing through the target intersection by the traffic radar in a first time period, so that the traffic data of the east-west road direction in the first time period can be obtained.
A V2X terminal can be arranged on the first type vehicle to send the passenger carrying quantity of the vehicle quantity to the traffic signal device, so that the traffic signal device can obtain the first passenger carrying quantity by counting the passing first type vehicles and the corresponding passenger carrying quantity in the first time period (for example, the sum of the passenger carrying quantities of the first type vehicles can be used as the first passenger carrying quantity); for the second type of vehicle, the number of passengers carried by the second type of vehicle can be preset to be a fixed value (such as: 1, 2, etc.), so that the second passenger carrying number can be obtained by counting the number of the second type of vehicles passing through the target intersection in the first time period and combining the fixed value (such as: the product of the number of the second type of vehicles and the fixed value can be used as the second passenger carrying number); determining passenger flow data of the east-west road direction in a first time period according to the first passenger carrying quantity and the second passenger carrying quantity; such as: the sum of the first passenger carrying quantity and the second passenger carrying quantity can be used as passenger flow data, or the weighted sum of the first passenger carrying quantity and the second passenger carrying quantity can be used as passenger flow data (for example, the weight of the first passenger carrying quantity is set to be larger than that of the second passenger carrying quantity so as to embody a public transport priority policy), and the specific determination mode of the weighted value can be determined according to the quantity of different types of vehicles, or preset and the like).
Optionally, in the case that the first type of vehicle is a bus, the number of passengers carried by each first type of vehicle may also be obtained through the record of the bus by swiping a card or image data acquired by a vehicle-mounted camera in the bus, which is not limited in the present invention.
Optionally, for the second type of vehicle, different fixed values may be set according to different passenger volumes approved by the second type of vehicle, so as to further ensure the accuracy of the statistical passenger flow data.
Of course, the traffic data and the passenger flow data in the north and south road directions can also be obtained in the same manner as described above, that is, the traffic data and the passenger flow data in each road direction of the target intersection can be obtained in the manner described above, which is not described herein again.
In this embodiment, when counting the passenger flow data in the first time period, the number of the different types of vehicles is considered, that is, when the V2X technology is used for the first type of vehicle, the first passenger carrying number that is relatively accurate can be directly obtained, and when the second type of vehicle is not convenient to directly obtain the passenger carrying number, the second passenger carrying number of the second type of vehicle is indirectly counted by setting a preset value and combining with the way of counting the number of the second type of vehicle, so that the passenger flow data can be counted for the different types of vehicles, which is beneficial to optimizing the statistics of the passenger flow data, and further optimizing the timing scheme of the traffic signal based on the passenger flow data and the traffic flow data.
Optionally, the step 12 may have the following implementation manners:
the method I comprises the following steps: when the traffic data indicate that the traffic flow in the first road direction of the current target intersection is high, the time distribution strategy of the traffic signal lamp in the first road direction of the current target intersection can be determined by combining the passenger flow data; such as: when the passenger flow data indicate that the passenger flow in the first road direction of the current target intersection is high, controlling the first road direction to pass for a first time length, and when the passenger flow data indicate that the passenger flow in the first road direction of the current target intersection is low, controlling the first road direction to pass for a second time length; wherein the first duration is greater than the second duration.
Further, different time lengths corresponding to different passenger flow data may be determined according to the correspondence between the passenger flow data and the passage time length, or other manners besides the above, which is not limited by the present invention.
The second method comprises the following steps: when the traffic data shows that the traffic flow of the first road direction of the current target intersection is low, the reference proportion of the passenger flow data of the first road direction can be reduced, or the timing strategy of the traffic signal lamp of the target intersection is determined without referring to the passenger flow data of the first road direction. Such as: the different time durations corresponding to the different traffic data may be determined according to the corresponding relationship between the traffic data and the passing time duration, or other manners besides this, which is not limited in the present invention.
Of course, the timing strategy for the traffic signal lights in one road direction may also adopt other implementation manners besides the above embodiments, and the invention is not limited thereto.
The third method comprises the following steps: under the condition that the target intersection corresponds to a plurality of road directions, under the condition that the traffic data of the first road direction of the target intersection is close to the traffic data of the second road direction (if the difference is within a preset range), if the traffic data of the first road direction is higher than the traffic data of the second road direction, the passing time of the first road direction can be controlled to be longer than the passing time of the second road direction; if the passenger flow data in the first road direction is less than or equal to the passenger flow data in the second road direction, the passing time length in the first road direction can be controlled to be less than or equal to the passing time length in the second road direction.
Further, different time lengths corresponding to different passenger flow data may be determined according to the correspondence between the passenger flow data and the passage time length, or other manners besides the above, which is not limited by the present invention.
As shown in fig. 3, an embodiment of the present invention further provides a traffic signal lamp timing method, which specifically includes the following steps:
step 31: and acquiring traffic data and passenger flow data of at least one road direction of the target intersection.
Step 32: and determining the traffic data corresponding to each road direction according to the traffic data and the passenger flow data corresponding to each road direction of the target intersection.
Step 33: and determining a time distribution strategy of the traffic signal lamp of the target intersection according to the flow data corresponding to each road direction.
In this embodiment, when the target intersection corresponds to a plurality of road directions, the timing strategy of the traffic signal lamp at the intersection may be determined by combining the traffic data corresponding to each road direction. The traffic signal lamp timing strategy is determined based on the traffic data in different road directions, the problem that the existing traffic signal lamp timing scheme cannot well support the bus priority can be solved, and the mode of determining the traffic signal lamp timing strategy by combining traffic data and passenger flow data is beneficial to optimizing guidance and jam relief of urban traffic, so that the travel demands of people can be better met.
As an implementation manner, the step 32 may specifically include:
and under the condition that the traffic data reach the preset condition, calculating the flow data of the first target road direction according to the traffic data of the first target road direction of the target intersection and the passenger flow data of the first target road direction. Wherein the first target road is any one of at least one road direction of the target intersection.
Thus, under the condition that the traffic data reaches the preset condition (such as the traffic peak, the traffic flow reaches the preset quantity), the traffic data in the first road direction of the target intersection and the passenger flow data in the first road direction are combined to calculate the traffic data in the first road direction, the traffic data in the second road direction of the target intersection and the passenger flow data are combined to calculate the traffic data in the second road direction, and the timing strategy of the traffic signal lamp of the target intersection is determined by comparing the traffic data in the first road direction and the second road direction. Such as: the configured transit time is longer when the flow data is larger, and conversely, the configured transit time is smaller when the flow data is smaller.
Further, the passing time duration corresponding to different traffic data may also be determined according to the corresponding relationship between the traffic data and the passing time duration, or in other ways besides, which is not limited in the present invention.
As another implementation manner, the step 32 may further specifically include:
determining a reference value of passenger flow data corresponding to a first road direction according to the passenger carrying number reference degree and the passenger flow data corresponding to the first road direction;
determining flow data in the first road direction according to the reference value of passenger flow data corresponding to the first road direction and the traffic data in the first road direction; and the first road direction is any one of at least one road direction corresponding to the target intersection.
Alternatively, as shown in fig. 4, a block diagram for calculating passenger flow data of different roads may be provided, specifically according to the following formula:
f2(X1, X2, X3, X4, Y1, Y2, Y3, Y4) ═ F1(X1+ Y1 × a, X2+ Y2 × a, X3+ Y3 × a, X4+ Y4 × a) to calculate flow rate data for each road direction;
wherein, X1, X2, X3 and X4 represent traffic data of different roads; y1, Y2, Y3, Y4 identify traffic data for different roads; a represents the passenger number reference degree.
The following describes the above method with reference to specific examples:
example one:
when A is 1, substituting the formula to obtain:
F2(X1，X2，X3，X4，Y1，Y2，Y3，Y4)＝F1(X1+Y1，X2+Y2，X3+Y3，X4+Y4)；
that is, in this embodiment, the weight of the passenger flow data is sufficiently enlarged, and as the number of passengers represented by the passenger flow data is larger, the corresponding transit time is longer according to the definition of the function F2.
As shown in fig. 5, for example, there are more vehicles coming from the west direction road/east direction road, the average traffic flow per 10 minutes is 50 according to the statistical data, but there are fewer passengers in the vehicle, and the average passenger capacity per 10 minutes is 200 according to the statistical data; the number of the incoming vehicles on the north road/south road is small, the average traffic flow per 10 minutes is 20 according to the statistical data, but the number of passengers in the vehicle is large, and the average passenger capacity per 10 minutes is 400 according to the statistical data;
Thus, it can be calculated from the above formula:
F2(X1，X2，X3，X4，Y1，Y2，Y3，Y4)
＝F1(X1+Y1，X2+Y2，X3+Y3，X4+Y4)
f1(250/, east west flow/, 420/, north-south flow /);
from the above calculation results, it can be seen that the traffic data of the roads in the north and south directions is higher than the traffic data of the roads in the east and west directions, and the passing time of the roads in the north and south directions is gradually increased when the timing strategy of the traffic signal lamp is determined.
Example two:
when A is 0.1, the formula is substituted to obtain:
F2(X1，X2，X3，X4，Y1，Y2，Y3，Y4)＝F1(X1+0.1*Y1，X2+0.1*Y2，X3+0.1*Y3，X4+0.1*Y4)；
that is, in this embodiment, the weight of the passenger flow data is reduced, and the passenger flow data has little influence on the timing of the traffic signal light.
As in fig. 5, for example: the number of vehicles coming from the west direction road/the east direction road is more, the average traffic flow per 10 minutes is 50 according to the statistical data, but the number of passengers in the vehicle is less, and the average passenger capacity per 10 minutes is 200 according to the statistical data; the number of the incoming vehicles on the north road/south road is small, the average traffic flow per 10 minutes is 20 according to the statistical data, but the number of passengers in the vehicle is large, and the average passenger capacity per 10 minutes is 400 according to the statistical data;
thus, it can be calculated from the above formula:
F2(X1，X2，X3，X4，Y1，Y2，Y3，Y4)
＝F1(X1+0.1*Y1，X2+0.1*Y2，X3+0.1*Y3，X4+0.1*Y4)
f1 (70/'east-west flow/, 60/' north-south flow /);
It can be seen from the above calculation results that the traffic duration of the east-west road will be gradually increased when the timing strategy of the traffic signal lamp is determined if the flow data of the east-west road is higher than the flow data of the north-south road.
In the embodiment, the weight value of the passenger flow data in the timing strategy of the traffic signal lamp is controlled by combining the passenger number reference degree, namely when the passenger flow data needs to be considered, the value of the passenger number reference degree can be set to be larger, and when the passenger flow data does not need to be considered, the value of the passenger number reference degree can be set to be smaller, so that the timing strategy of the traffic signal lamp is further optimized, the timing strategy of the traffic signal lamp has higher flexibility, and the travel requirement of a user can be better met.
In addition, the scheme also solves the problem of judgment basis when the bus release requirements exist in two road directions to a certain extent, namely the judgment can be carried out by taking the passenger carrying quantity of the bus as a reference under the scheme, and the party with large passenger carrying quantity is preferentially released on the premise of other consistent conditions.
Optionally, before the step of determining the reference value of the passenger flow data corresponding to the first road direction according to the passenger carrying number reference degree and the passenger flow data corresponding to the first road direction, the method may further include: and acquiring the passenger carrying number reference degree.
The method for obtaining the passenger number reference degree may include at least one of the following:
and determining the passenger carrying number reference degree according to the traffic flow data.
Specifically, the value of the passenger count reference degree may be set to be high when the traffic volume indicated by the traffic volume data is high, and may be set to be low when the traffic volume indicated by the traffic volume data is low.
Therefore, the passenger carrying number reference degree can be dynamically adjusted according to the road congestion degree, and when the traffic flow represented by the traffic flow data is high, the passenger carrying number reference degree is high, and a traffic signal lamp timing strategy which is more beneficial to releasing buses is made by the timing control scheme; when the traffic flow represented by the traffic flow data is low, the reference degree of the number of passengers is low, and the timing control scheme does not embody the traffic signal lamp timing strategy of the bus priority.
And determining the passenger number reference degree through the formula X-Y-A. Wherein X represents vehicle data; y represents passenger flow data; and A represents the passenger number reference degree.
And determining the passenger number reference degree corresponding to the first time period according to the corresponding relation between the time period and the passenger number reference degree.
Therefore, the passenger carrying number reference degree can be dynamically adjusted according to the time period, and the passenger carrying number reference degree can be set to be smaller in the time period with fewer road vehicles, so that the bus and the common vehicle on the road can pass fairly basically, and passengers feel not large; in a time period with more road vehicles, the reference degree of the number of passengers can be set to be larger, and public transport vehicles can be released as much as possible, namely, the purpose of partial exclusive use in busy hours and sharing in idle hours can be realized.
Of course, the reference degree of the number of passengers may also be dynamically adjusted according to the time period and the degree of congestion of the road (i.e., traffic data), which is not described herein again.
Optionally, the step 32 may further specifically include:
determining a reference value of passenger flow data corresponding to a first road direction according to the passenger number reference degree and the passenger flow data corresponding to the first road direction aiming at the passenger flow data corresponding to the first road direction in a preset time period;
determining flow data in the first road direction according to the reference value of the passenger flow data corresponding to the first road direction and the traffic data in the first road direction; and the first road direction is any one of at least one road direction corresponding to the target intersection.
The predetermined time period may be a traffic peak time period obtained in advance through statistics, or a traffic peak time period obtained through statistics of other devices.
In this way, the reference value of the passenger flow data is determined by considering the weight based on the passenger flow data only in a predetermined time period, namely, a peak time period of vehicle passing, and then the traffic data of each road is calculated based on the reference value of the passenger flow data and the traffic data, so that the timing strategy of the traffic signal lamp is determined, which is not described herein again. In the non-predetermined time period, that is, the off-peak time period of vehicle passing, the passenger flow data may not be considered, and the traffic flow data is directly used as a reference to determine the timing strategy of the traffic signal lamp, which is not described herein again.
It should be noted that, the specific manner of determining the timing strategy of the traffic light at the target intersection by referring to the traffic data and the passenger flow data may also include other manners besides the foregoing embodiments, and the invention is not limited thereto.
In the scheme, the traffic signal lamp timing scheme refers to traffic flow data of roads and vehicle passenger flow data of roads, and introduces a passenger number reference degree parameter, when the passenger number reference degree is high, the timing control scheme makes a signal lamp timing strategy more beneficial to releasing public buses, when the passenger number reference degree is low, the timing control scheme does not reflect bus priority, so that roads with high passenger flow rate can be preferentially released more, congestion is reduced, traffic efficiency is improved, people-oriented mode is highlighted, and buses are preferentially gone out.
In addition, the reference degree of the passenger carrying number can be adjusted according to the traffic flow/time period of the road and the like, when the traffic flow is in a peak period, the reference degree of the passenger carrying number is improved, otherwise, the reference degree of the passenger carrying number is reduced, and the influence amplitude of the passenger carrying quantity parameters on the timing of the traffic signal lamp can be flexibly adjusted. The scheme also solves the problem of judgment basis to a certain extent when the bus release requirements exist in two directions, the judgment can be carried out by taking the number of passengers carrying the bus as the reference under the scheme, and the party with large number of passengers is preferentially released on the premise of other consistent conditions.
The above embodiments describe the timing method of the traffic signal lamp of the present invention, and the following embodiments will further describe the corresponding traffic signal device with reference to the accompanying drawings.
Specifically, as shown in fig. 6, a traffic signal apparatus 600 of an embodiment of the present invention includes:
the acquisition module 610 is used for acquiring traffic data and passenger flow data of at least one road direction of a target intersection;
and the processing module 620 is configured to determine a timing strategy of a traffic light at the target intersection according to the traffic data and the passenger flow data.
Optionally, the obtaining module 610 includes:
the first obtaining submodule is used for obtaining the number of vehicles passing through at least one road direction corresponding to the target intersection and the passenger carrying number of each first type of vehicle in a first time period;
the first determining submodule is used for determining the traffic flow data according to the number of the vehicles;
and the second determining submodule is used for determining the passenger flow data according to the passenger carrying quantity of the first type of vehicle.
Optionally, the obtaining module 610 includes:
the second obtaining submodule is used for obtaining the number of all vehicles passing by at least one road direction corresponding to the target intersection, the number of vehicles of the second type and the first passenger carrying number of each first type vehicle in a first time period;
The third determining submodule is used for determining the traffic flow data according to the number of all vehicles;
the fourth determining submodule is used for determining the second passenger carrying quantity of the second type of vehicle according to the vehicle quantity of the second type of vehicle and the preset passenger carrying quantity of the second type of vehicle;
and the fifth determining submodule is used for determining the passenger flow data according to the first passenger carrying quantity of the first type of vehicle and the second passenger carrying quantity of the second type of vehicle.
Optionally, the processing module 620 includes:
the first processing submodule is used for determining traffic data corresponding to each road direction according to traffic data and passenger flow data corresponding to each road direction of the target intersection;
and the second processing submodule is used for determining a time distribution strategy of the traffic signal lamp of the target intersection according to the flow data corresponding to each road direction.
Optionally, the first processing sub-module includes:
the first processing unit is used for determining a reference value of passenger flow data corresponding to a first road direction according to the passenger carrying number reference degree and the passenger flow data corresponding to the first road direction;
The second processing unit is used for determining the flow data of the first road direction according to the reference value of the passenger flow data corresponding to the first road direction and the traffic data of the first road direction; the first road direction is any one of at least one road direction corresponding to the target intersection.
Optionally, the first processing sub-module further includes a third processing unit, configured to execute at least one of the following steps before determining a reference value of passenger flow data corresponding to a first road direction according to a passenger carrying number reference degree and the passenger flow data corresponding to the first road direction:
determining the passenger carrying number reference degree according to the traffic flow data;
and determining the passenger number reference degree corresponding to the first time period according to the corresponding relation between the passenger number reference degree and the time period.
Optionally, the first processing unit is further specifically configured to: and determining a reference value of passenger flow data corresponding to a first road direction according to the passenger carrying number reference degree and the passenger flow data corresponding to the first road direction aiming at the passenger flow data corresponding to the first road direction in a preset time period.
Alternatively, the traffic signal device may be disposed at a position of a traffic signal lamp or at a roadside, as long as the timing method can be implemented, and the present invention is not particularly limited.
The embodiment of the traffic signal equipment of the invention is corresponding to the embodiment of the method, all the implementation means in the embodiment of the method are suitable for the embodiment of the traffic signal equipment, and the same technical effect can be achieved.
The traffic signal equipment in the embodiment of the invention can solve the problem that the current time distribution scheme of the traffic signal lamp cannot well support the priority of buses by acquiring the traffic data and the passenger flow data of at least one road direction of the target intersection and determining the time distribution strategy of the traffic signal lamp of the target intersection according to the traffic data and the passenger flow data, and is favorable for optimizing guidance and jam relief of urban traffic by determining the time distribution strategy of the traffic signal lamp by combining the traffic data and the passenger flow data, thereby better meeting the travel demands of people.
To better achieve the above object, as shown in fig. 7, an embodiment of the present invention further provides a traffic signal apparatus including: a processor 700; a memory 720 connected to the processor 700 through a bus interface, and a transceiver 710 connected to the processor 700 through a bus interface; the memory 720 is used for storing programs and data used by the processor in performing operations; transmitting data information or pilot frequency through the transceiver 710, and receiving an uplink control channel through the transceiver 710; when the processor 700 calls and executes the programs and data stored in the memory 720, the following functions are implemented:
Acquiring traffic data and passenger flow data of at least one road direction of a target intersection;
and determining a timing strategy of a traffic signal lamp of the target intersection according to the traffic data and the passenger flow data.
Optionally, when the processor 700 executes the computer program, the following steps are further implemented:
in a first time period, acquiring the number of vehicles passing through at least one road direction corresponding to the target intersection and the passenger carrying number of each first type of vehicle;
determining the traffic data according to the number of the vehicles;
and determining the passenger flow data according to the passenger carrying quantity of the first type of vehicle.
Optionally, when the processor 700 executes the computer program, the following steps are further implemented:
in a first time period, acquiring the quantity of all vehicles passing by at least one road direction corresponding to the target intersection, the quantity of vehicles of a second type and the first passenger carrying quantity of each vehicle of a first type;
determining the traffic flow data according to the number of all vehicles;
determining a second passenger carrying quantity of the second type of vehicle according to the vehicle quantity of the second type of vehicle and the preset passenger carrying quantity of the second type of vehicle;
And determining the passenger flow data according to the first passenger carrying quantity of the first type of vehicle and the second passenger carrying quantity of the second type of vehicle.
Optionally, the processor 700 further implements the following steps when executing the computer program:
determining traffic data corresponding to each road direction according to traffic data and passenger flow data corresponding to each road direction of the target intersection;
and determining a time distribution strategy of the traffic signal lamp of the target intersection according to the flow data corresponding to each road direction.
Optionally, the processor 700 further implements the following steps when executing the computer program:
determining a reference value of passenger flow data corresponding to a first road direction according to the passenger carrying number reference degree and the passenger flow data corresponding to the first road direction;
determining flow data in the first road direction according to the reference value of passenger flow data corresponding to the first road direction and the traffic data in the first road direction; and the first road direction is any one of at least one road direction corresponding to the target intersection.
Optionally, the processor 700, when executing the computer program, further performs at least one of the following steps:
Determining the passenger carrying number reference degree according to the traffic flow data;
and determining the passenger number reference degree corresponding to the first time period according to the corresponding relation between the passenger number reference degree and the time period.
Optionally, the processor 700 further implements the following steps when executing the computer program:
and determining a reference value of passenger flow data corresponding to a first road direction according to the passenger carrying number reference degree and the passenger flow data corresponding to the first road direction aiming at the passenger flow data corresponding to the first road direction in a preset time period.
A transceiver 710 for receiving and transmitting data under the control of the processor 700.
Where in fig. 7, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 700 and memory represented by memory 720. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 710 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 in performing operations.
Those skilled in the art will understand that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a computer program instructing relevant hardware, where the computer program includes instructions for executing all or part of the steps of the above methods; and the computer program may be stored in a readable storage medium, which may be any form of storage medium.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the traffic signal lamp timing method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.
The object of the invention is thus also achieved by a program or a set of programs running on any computing device. The computing device may be a well-known general purpose device. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (12)
1. A traffic signal timing method, comprising:
the method for acquiring the traffic data and the passenger flow data of at least one road direction of the target intersection comprises the following steps: in a first time period, acquiring the number of vehicles passing through at least one road direction corresponding to the target intersection and the passenger carrying number of each first type of vehicle; determining the traffic data according to the number of the vehicles; determining the passenger flow data according to the passenger carrying quantity of the first type of vehicle;
determining a timing strategy of a traffic signal lamp of the target intersection according to the traffic data and the passenger flow data, wherein the timing strategy comprises the following steps: determining traffic data corresponding to each road direction according to traffic data and passenger flow data corresponding to each road direction of the target intersection; determining a timing strategy of a traffic signal lamp of the target intersection according to the flow data corresponding to each road direction;
wherein, F2(X1, X2, X3, X4, Y1, Y2, Y3, Y4) ═ F1(X1+ Y1 a, X2+ Y2 a, X3+ Y3 a, X4+ Y4 a) is used to calculate the flow rate data of each road direction; x1, X2, X3 and X4 represent traffic data from the road 1 to the road 4, Y1, Y2, Y3 and Y4 represent traffic data from the road 1 to the road 4, and a represents the reference degree of the number of passengers; the weight value of the passenger flow data in the timing strategy of the traffic signal lamp is controlled by combining the passenger number reference degree.
2. The traffic signal light timing method according to claim 1, wherein the acquiring traffic data and passenger flow data of at least one road direction corresponding to the target intersection comprises:
in a first time period, acquiring the number of all vehicles passing by at least one road direction corresponding to the target intersection, the number of vehicles of a second type and the first passenger carrying number of each first type of vehicle;
determining the traffic flow data according to the number of all vehicles;
determining a second passenger carrying quantity of the second type of vehicle according to the vehicle quantity of the second type of vehicle and the preset passenger carrying quantity of the second type of vehicle;
and determining the passenger flow data according to the first passenger carrying quantity of the first type of vehicle and the second passenger carrying quantity of the second type of vehicle.
3. The traffic signal light timing method according to claim 1, wherein the determining the traffic data corresponding to each road direction according to the traffic data and the passenger flow data corresponding to each road direction of the target intersection comprises:
determining a reference value of passenger flow data corresponding to a first road direction according to the passenger carrying number reference degree and the passenger flow data corresponding to the first road direction;
Determining flow data in the first road direction according to the reference value of the passenger flow data corresponding to the first road direction and the traffic data in the first road direction; the first road direction is any one of at least one road direction corresponding to the target intersection.
4. The traffic signal light timing method according to claim 3, wherein before determining the reference value of the passenger flow data corresponding to the first road direction according to the reference degree of the number of passengers and the passenger flow data corresponding to the first road direction, at least one of the following is further included:
determining the passenger carrying number reference degree according to the traffic flow data;
and determining the passenger number reference degree corresponding to the first time period according to the corresponding relation between the passenger number reference degree and the time period.
5. The traffic signal light timing method according to claim 3 or claim 4, wherein the determining a reference value of the passenger flow data corresponding to the first road direction according to the passenger number reference degree and the passenger flow data corresponding to the first road direction comprises:
and determining a reference value of passenger flow data corresponding to a first road direction according to the passenger carrying number reference degree and the passenger flow data corresponding to the first road direction aiming at the passenger flow data corresponding to the first road direction in a preset time period.
6. A traffic signal apparatus comprising: a transceiver, a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the computer program performs the steps of:
acquiring traffic data and passenger flow data of at least one road direction of a target intersection; the processor, when executing the computer program, implements the steps of: in a first time period, acquiring the number of vehicles passing through at least one road direction corresponding to the target intersection and the passenger carrying number of each first type of vehicle; determining the traffic data according to the number of the vehicles; determining the passenger flow data according to the passenger carrying quantity of the first type of vehicle;
determining a timing strategy of a traffic signal lamp of the target intersection according to the traffic data and the passenger flow data; the processor, when executing the computer program, implements the steps of: determining traffic data corresponding to each road direction according to traffic data and passenger flow data corresponding to each road direction of the target intersection; determining a time distribution strategy of a traffic signal lamp of the target intersection according to the flow data corresponding to each road direction;
Wherein, F2(X1, X2, X3, X4, Y1, Y2, Y3, Y4) ═ F1(X1+ Y1 a, X2+ Y2 a, X3+ Y3 a, X4+ Y4 a) is used to calculate the flow rate data of each road direction; x1, X2, X3 and X4 represent traffic data from the road 1 to the road 4, Y1, Y2, Y3 and Y4 represent traffic data from the road 1 to the road 4, and a represents the reference degree of the number of passengers; the weight value of the passenger flow data in the timing strategy of the traffic signal lamp is controlled by combining the reference degree of the passenger carrying number.
7. The traffic signal apparatus of claim 6, wherein the processor, when executing the computer program, performs the steps of:
in a first time period, acquiring the number of all vehicles passing by at least one road direction corresponding to the target intersection, the number of vehicles of a second type and the first passenger carrying number of each first type of vehicle;
determining the traffic data according to the number of all vehicles;
determining a second passenger carrying quantity of the second type of vehicle according to the vehicle quantity of the second type of vehicle and the preset passenger carrying quantity of the second type of vehicle;
and determining the passenger flow data according to the first passenger carrying quantity of the first type of vehicle and the second passenger carrying quantity of the second type of vehicle.
8. Traffic signal device according to claim 6, characterized in that the processor, when executing the computer program, carries out the following steps:
determining a reference value of passenger flow data corresponding to a first road direction according to the passenger carrying number reference degree and the passenger flow data corresponding to the first road direction;
determining flow data in the first road direction according to the reference value of the passenger flow data corresponding to the first road direction and the traffic data in the first road direction; and the first road direction is any one of at least one road direction corresponding to the target intersection.
9. The traffic signal apparatus of claim 8, wherein the processor, when executing the computer program, performs at least one of:
determining the passenger carrying number reference degree according to the traffic flow data;
and determining the passenger number reference degree corresponding to the first time period according to the corresponding relation between the passenger number reference degree and the time period.
10. Traffic signal device according to claim 8 or 9, characterized in that the processor, when executing the computer program, carries out the following steps:
and determining a reference value of passenger flow data corresponding to a first road direction according to the passenger carrying number reference degree and the passenger flow data corresponding to the first road direction aiming at the passenger flow data corresponding to the first road direction in a preset time period.
11. A traffic signal apparatus, comprising:
the system comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring traffic data and passenger flow data of at least one road direction of a target intersection; wherein: in a first time period, acquiring the number of vehicles passing by at least one road direction corresponding to the target intersection and the passenger carrying number of each first type of vehicle; determining the traffic data according to the number of the vehicles; determining the passenger flow data according to the passenger carrying quantity of the first type of vehicle;
the processing module is used for determining a timing strategy of a traffic signal lamp of the target intersection according to the traffic data and the passenger flow data; wherein: determining traffic data corresponding to each road direction according to traffic data and passenger flow data corresponding to each road direction of the target intersection; determining a time distribution strategy of a traffic signal lamp of the target intersection according to the flow data corresponding to each road direction;
wherein, F2(X1, X2, X3, X4, Y1, Y2, Y3, Y4) ═ F1(X1+ Y1 a, X2+ Y2 a, X3+ Y3 a, X4+ Y4 a) is used to calculate the flow data in each road direction; x1, X2, X3 and X4 represent traffic data from the road 1 to the road 4, Y1, Y2, Y3 and Y4 represent traffic data from the road 1 to the road 4, and a represents the reference degree of the number of passengers; the weight value of the passenger flow data in the timing strategy of the traffic signal lamp is controlled by combining the passenger number reference degree.
12. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the traffic signal timing method according to any one of claims 1 to 5.
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