A green wave coordination control method and system, storage medium and terminal

Abstract

The application discloses a kind of green wave coordination control methods, method includes: obtaining red-green light signal parameters and application scene parameters on the highway trunk to be controlled;According to red-green light signal parameters and application scene parameters, determine target scene variable in combination with preset green wave bandwidth adjustment expression;When it is determined that the current traffic scene belongs to discontinuous green wave band scene according to target scene variable, determine constraint condition expression and objective function under discontinuous green wave band scene according to the expression;According to constraint condition expression and objective function under discontinuous green wave band scene, the green wave bandwidth of the highway trunk to be controlled is controlled.The application sets constraint condition expression and objective function under discontinuous green wave band scene, when the discontinuous green wave band scene appears, the constraint and objective function under the scene can be quickly loaded to control the green wave bandwidth of highway trunk, solve the situation that MAXBAND model and MULTIBAND model are not suitable for discontinuous green wave band scene, improve traffic efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent transportation, in particular to a green wave coordination control method and system, a storage medium and a terminal. BACKGROUND

[0002] The green wave band is that on a designated traffic trunk, when the vehicle speed of a road section is determined, a signal control machine adjusts the green light start time of each intersection through which the vehicle flow passes according to the distance of the road section, so as to ensure that the vehicle flow reaches each intersection and encounters a green light. The entire road section trunk in this scenario is called a green wave band.

[0003] Green wave coordination control, also known as trunk signal optimization, aims to adjust the time difference of the green light start time of each intersection on a trunk, so that the vehicle flow continuously passes through each intersection of the trunk in a certain time range without stopping or with less stopping. The certain time range required for the vehicle flow to pass through each intersection of the trunk in this way is called a green wave band width.

[0004] Green wave coordination control based on the green wave band has always been an important means of urban traffic management and is favored by traffic managers. After Morgan first proposed the concept of green wave, scholars around the world have done a lot of research on green wave coordination control. Little et al. proposed the MAXBAND model with the goal of maximizing the two-way green wave band width. Later, Gartner et al. proposed the MULTIBAND model to address the shortcomings of the MAXBAND model.

[0005] At present, the MAXBAND model and the MULTIBAND model can only be applied to the scenario in which the trunk must have a continuous green wave band, i.e., the scenario in which the vehicle fleet can continuously pass through each intersection of the trunk without stopping. If the trunk adopts a discontinuous green wave band scenario, i.e., the scenario in which the vehicle fleet needs to stop once or several times when passing through each intersection of the trunk, the MAXBAND model and the MULTIBAND model in the prior art are no longer applicable to the discontinuous green wave band scenario, thereby reducing the traffic efficiency of the vehicle fleet. SUMMARY

[0006] The present application provides a green wave coordination control method, system, storage medium and terminal. To have a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not a general review, nor does it determine the key / important elements or delineate the protection scope of these embodiments. Its only purpose is to present some concepts in a simple form as a prelude to the detailed description that follows.

[0007] In a first aspect, the present application provides a green wave coordination control method, the method comprising:

[0008] acquire a red light signal parameter and an application scenario parameter of a to-be-controlled arterial highway;

[0009] determine a target scenario variable according to the red light signal parameter and the application scenario parameter, and in combination with a preset green wave bandwidth adjustment expression;

[0010] when it is determined according to the target scenario variable that the current traffic scenario belongs to a discontinuous green wave band scenario, determine a constraint condition expression and a target function in the discontinuous green wave band scenario according to the preset green wave bandwidth adjustment expression; the preset green wave bandwidth adjustment expression is derived from a continuous green wave band position constraint in a MULTIBAND model;

[0011] the continuous green wave band position constraint in the MULTIBAND model is deformed;

[0012] control a green wave bandwidth of the to-be-controlled arterial highway according to the constraint condition expression and the target function in the discontinuous green wave band scenario.

[0013] Optionally, the target scenario variable includes a scenario control variable p i and a target scenario decision variable u i+1 ;

[0014] The method further includes:

[0015] when it is determined according to the red light signal parameter and the application scenario parameter that the scenario control variable p i is 0 and the target scenario decision variable u i+1 is 0, it is determined that the current traffic scenario belongs to a continuous green wave band scenario;

[0016] or,

[0017] when it is determined according to the red light signal parameter and the application scenario parameter that the scenario control variable p i is 1 and the target scenario decision variable u i+1 is not 0, it is determined that the current traffic scenario belongs to a discontinuous green wave band scenario.

[0018] Optionally, the constraint condition in the discontinuous green wave band scenario at least includes:

[0019] an uplink or downlink green wave band discontinuity constraint, and an uplink or downlink green wave band position constraint;

[0020] The method further includes:

[0021] When it is determined according to the target scenario variables that the current traffic scenario belongs to a continuous green wave band scenario, the constraint expression and objective function under the continuous green wave band scenario are determined according to the preset green wave bandwidth adjustment expression; the traffic light signal parameters are input into the constraint expression and objective function under the continuous green wave band scenario for calculation to obtain the green wave coordination control parameters.

[0022] Optionally, the uplink or downlink green band discontinuity constraint is generated in the following manner, including:

[0023] Set the cumulative number of uplink green band discontinuities to be less than or equal to the input uplink maximum discontinuity number stop; the expression is: where p i In the upward green wave band at intersection S i It is discontinuous, n is the intersection S in the upward green wave band i discrete quantities; and,

[0024] Set the cumulative number of downlink green band discontinuities to be less than or equal to the input downlink maximum discontinuity number. The expression is: in In the downlink green wave band at intersection S i It is discontinuous, n is the intersection S in the downlink green wave band i Discontinuous quantity.

[0025] Optionally, the upstream green band position constraint is generated in the following manner, including:

[0026] At the intersection S i and intersection S i+1 Green band b between i With intersection S i+1 and intersection S i+2 Green band b between i+1 When discontinuous, set the uplink green wave band b i At the intersection S i The left and right boundaries of the location are within the green light duration, and the uplink green wave band b is set i At the intersection S i+1 The left and right boundaries of the red light are within the red light duration;

[0027] Set the upstream green band b i At the intersection S i The first expression of the left and right boundaries within the green light duration is:

[0028] Set the upstream green band b i At the intersection S i+1 The second expression that the left and right boundaries must be within the red light duration is: in,

[0029] w i b is the ratio of the time from the midpoint of the i-th uplink bandwidth to the end of the nearest red light to the signal cycle; i For intersection S i and S i+1 Uplink bandwidth between i For intersection S i The ratio of the uplink red light duration to the signal cycle, u i is the bandwidth b i The midpoint to the bandwidth b i+1 The ratio of the midpoint duration to the signal period.

[0030] Optionally, the downlink green band position constraint is generated in the following manner, including:

[0031] At the intersection S i+1 and intersection S i Green wave belt between With intersection S i and intersection S i-1 Green wave belt between When discontinuous, set the downlink green wave band At the intersection S i+1 The left and right boundaries of the station are within the green light duration, and a downward green wave band is set. The intersection is S i The left and right boundaries of the area are within the red light duration;

[0032] Set the downlink green band At the intersection S i+1 The third expression for the left and right boundaries within the green light duration is:

[0033]

[0034] Set the downlink green band The intersection is S i The fourth expression that the left and right boundaries must be within the red light duration is:

[0035] in,

[0036] Bandwidth Midpoint to bandwidth The ratio of the midpoint duration to the signal period, is the ratio of the time from the midpoint of the i-th downlink bandwidth to the start of the nearest red light to the signal cycle, For intersection S i and S i+1 The downlink bandwidth between For intersection S iThe ratio of the duration of the downstream red light to the signal cycle.

[0037] Optionally, the continuous green wave band position constraint in the MULTIBAND model includes an uplink position constraint expression and a downlink position constraint expression, and the steps of generating the preset green wave bandwidth adjustment expression include:

[0038] The first discriminant is obtained by transforming the second expression and the continuous green wave band upstream position constraint expression in the MULTIBAND model; the first discriminant is:

[0039] -p i r i+1 +(1 / 2)b i ≤w i+1 -u i+1 ≤(1-p i )(1-r i+1 )-(1 / 2)b i ;

[0040] The second discriminant is obtained by transforming the fourth expression and the continuous green wave band downward position constraint expression in the MULTIBAND model; the second discriminant is:

[0041] in,

[0042] Determine the first discriminant as an uplink scenario calculation expression, and determine the second discriminant as a downlink scenario calculation expression;

[0043] According to the uplink scenario calculation expression and the downlink scenario calculation expression, a preset green wave bandwidth adjustment expression is obtained; wherein,

[0044] p i Control variables for the uplink scenario, is the downlink scenario control variable, r i For intersection S i The ratio of the uplink red light duration to the signal cycle, For intersection S i The ratio of the duration of the red light in the downlink direction to the signal cycle, b i For intersection S i and S i+1 The uplink bandwidth between For intersection S i and S i+1 The downlink bandwidth between i is the ratio of the duration from the midpoint of the i-th uplink bandwidth to the end of the nearest red light to the signal cycle, u is the ratio of the time from the midpoint of the i-th downlink bandwidth to the start of the nearest red light to the signal cycle,i is the midpoint of the bandwidth b i is the proportion of the signal period occupied by the length of time from the midpoint of the bandwidth b i+1 to the midpoint of the bandwidth b is the midpoint of the bandwidth b is the proportion of the signal period occupied by the length of time from the midpoint of the bandwidth b to the midpoint of the bandwidth b

[0045] Optionally, the green wave bandwidth of the to-be-controlled arterial highway is controlled according to the constraint condition expression and the target function under the discontinuous green wave band scenario, including:

[0046] The green wave coordination control parameter is calculated according to the traffic light signal parameter, the constraint condition expression and the target function under the discontinuous green wave band scenario.

[0047] The traffic light of the to-be-controlled arterial highway is regulated based on the green wave coordination control parameter, so as to control the green wave bandwidth of the to-be-controlled arterial highway.

[0048] In a second aspect, an embodiment of the present application provides a green wave coordination control system, which includes:

[0049] A parameter acquisition module is configured to acquire a traffic light signal parameter and an application scenario parameter on a to-be-controlled arterial highway.

[0050] A scenario parameter determination module is configured to determine a target scenario variable according to the traffic light signal parameter and the application scenario parameter, and in combination with a preset green wave bandwidth adjustment expression.

[0051] An expression and function determination module is configured to determine a constraint condition expression and a target function under a discontinuous green wave band scenario according to the preset green wave bandwidth adjustment expression when it is determined according to the target scenario variable that the current traffic scenario belongs to the discontinuous green wave band scenario; the preset green wave bandwidth adjustment expression is derived from the discontinuous green wave band position constraint and the continuous green wave band position constraint in the MULTIBAND model.

[0052] A green wave bandwidth control module is configured to control the green wave bandwidth of the to-be-controlled arterial highway according to the constraint condition expression and the target function under the discontinuous green wave band scenario.

[0053] In a third aspect, an embodiment of the present application provides a computer storage medium, which stores a plurality of instructions, and the instructions are adapted to be loaded by a processor and executed to perform the method steps described above.

[0054] In a fourth aspect, an embodiment of the present application provides a terminal, which can include a processor and a memory; the memory stores a computer program, and the computer program is adapted to be loaded by the processor and executed to perform the method steps described above.

[0055] The technical scheme provided by the embodiments of the present application can include the following beneficial effects:

[0056] In the embodiments of the present application, the green wave coordination control system first acquires the traffic signal parameters and application scenario parameters of the to-be-controlled arterial highway, then determines the target scenario variable according to the traffic signal parameters and the application scenario parameters and in combination with a preset green wave bandwidth adjustment expression, and when it is determined according to the target scenario variable that the current traffic scenario belongs to a discontinuous green wave band scenario, determines the constraint condition expression and the objective function in the discontinuous green wave band scenario according to the preset green wave bandwidth adjustment expression; the preset green wave bandwidth adjustment expression is derived from the discontinuous green wave band position constraint and the continuous green wave band position constraint in the MULTIBAND model, and finally controls the green wave bandwidth of the to-be-controlled arterial highway according to the constraint condition expression and the objective function in the discontinuous green wave band scenario. Since the preset green wave bandwidth adjustment expression is set in the present application, the preset green wave bandwidth adjustment expression contains the constraint conditions in the discontinuous green wave band scenario, and when the discontinuous green wave band scenario occurs, the constraint condition expression and the objective function in the scenario are determined according to the preset green wave bandwidth adjustment expression to control the green wave bandwidth of the arterial highway, solving the problem that the MAXBAND model and the MULTIBAND model are not applicable to the discontinuous green wave band scenario, thereby improving the vehicle platoon passing efficiency.

[0057] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0058] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0059] Figure 1 is a flowchart of a green wave coordination control method provided by the embodiments of the present application;

[0060] Figure 2 is a time-distance diagram of a green wave coordination control algorithm provided by the embodiments of the present application;

[0061] Figure 3 is a parameter representation intention provided by the embodiments of the present application;

[0062] Figure 4 is a structural schematic diagram of a green wave coordination control system provided by the embodiments of the present application;

[0063] Figure 5 is a structural schematic diagram of a terminal provided by the embodiments of the present application. DETAILED DESCRIPTION

[0064] The following description and drawings are illustrative of specific embodiments of the application and are not intended to be limiting of the application as a whole.

[0065] It should be noted that the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0066] The following description refers to the accompanying drawings. Unless otherwise noted, like elements in different drawings represent the same or similar elements. The following description of exemplary embodiments is not meant to be limiting as to the scope of the application, but is to provide an overview of some aspects of the application as defined by the claims.

[0067] In the description of the present application, it should be understood that the terms "first", "second" and the like are used only for the purpose of description, and cannot be understood as indicating or implying relative importance. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, "a plurality of" means two or more, unless otherwise specified. "And / or", the association between the associated objects, means that there can be three relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the associated objects before and after are a "or" relationship.

[0068] The present application provides a green wave coordination control method, system, storage medium and terminal to solve the problems in the above related technical problems. In the technical scheme provided by the present application, the preset green wave bandwidth adjustment expression is set, and the preset green wave bandwidth adjustment expression contains the constraint condition in the discontinuous green wave band scene. When the discontinuous green wave band scene appears, the constraint condition expression and the target function of the highway trunk green wave band can be determined according to the preset green wave bandwidth adjustment expression to control the green wave band, which solves the problem that the MAXBAND model and the MULTIBAND model are not suitable for the discontinuous green wave band scene, thereby improving the vehicle fleet passing efficiency. The following exemplary embodiments will be described in detail.

[0069] The following will be described in detail with reference to the accompanying drawings Figure 1 -Appendix Figure 3 The green wave coordination control method provided by the embodiment of the present application is described in detail. The method can be realized by relying on a computer program and can run on a green wave coordination control system based on von Neumann system. The computer program can be integrated in an application or run as an independent tool class application.

[0070] Please refer toFigure 1 A flowchart of a green wave coordination control method is provided for the embodiments of the present application. As shown in the figure, the method of the embodiments of the present application can include the following steps: Figure 1

[0071] S101, acquiring the red light signal parameters and application scenario parameters on the to-be-controlled highway trunk;

[0072] The to-be-controlled highway trunk is a section of road with a starting point in a certain region in an electronic map, which includes an uplink lane and a downlink lane, and each intersection on the road includes a red light device. The red light signal parameters are the control parameters of the plurality of red light devices preset. The application scenario parameters can be determined according to the traffic flow of the highway trunk.

[0073] In the embodiments of the present application, when performing green wave coordination control, the red light signal parameters and application scenario parameters on the to-be-controlled highway trunk need to be acquired first.

[0074] S102, determining a target scenario variable according to the red light signal parameters and application scenario parameters, and combining a preset green wave bandwidth adjustment expression;

[0075] The preset green wave bandwidth adjustment expression is a mathematical model for judging the current traffic scenario. The mathematical model is composed of a first discriminant and a second discriminant.

[0076] Specifically, the first discriminant is: -p i r i+1 +(1 / 2)b i ≤w i+1 -u i+1 ≤(1-p i )(1-r i+1 )-(1 / 2)b i ; and the second discriminant is: p i is an uplink scenario control variable, is a downlink scenario control variable, r i is the proportion of the red light duration of the uplink of the intersection S i to the signal cycle, is the proportion of the red light duration of the downlink of the intersection S i to the signal cycle, b i is the uplink bandwidth between the intersections S i and S i+1 , is the downlink bandwidth between the intersections S i and S i+1 , w i is the proportion of the duration from the left boundary of the ith uplink bandwidth to the end of the red light to the signal cycle,​ is the proportion of the time length from the right boundary of the ith downlink bandwidth to the start of the red light to the signal period, u i is the proportion of the time length from the midpoint of the bandwidth b i to the midpoint of the bandwidth b i+1 to the signal period, is the proportion of the time length from the midpoint of the bandwidth b to the midpoint of the bandwidth b to the signal period.

[0077] In a possible implementation, after obtaining the traffic light signal parameters and the application scenario parameters, the first discriminant and the second discriminant can be combined to determine the target scenario variable.

[0078] S103, when it is determined according to the target scenario variable that the current traffic scenario belongs to the discontinuous green wave band scenario, determining the constraint condition expression and the target function in the discontinuous green wave band scenario according to the preset green wave bandwidth adjustment expression; the preset green wave bandwidth adjustment expression is derived from the discontinuous green wave band position constraint and the continuous green wave band position constraint in the MULTIBAND model.

[0079] In the target scenario variable, the scenario control variable p i and the target scenario decision variable u i+1 are included.

[0080] In the embodiments of the present application, when the scenario control variable p i calculated according to the traffic light signal parameters and the application scenario parameters is 0 and the target scenario decision variable u i+1 is 0, it is determined that the current traffic scenario belongs to the continuous green wave band scenario; or when the scenario control variable p i calculated according to the traffic light signal parameters and the application scenario parameters is 1 and the target scenario decision variable u i+1 is not 0, it is determined that the current traffic scenario belongs to the discontinuous green wave band scenario.

[0081] In a possible implementation, when it is determined according to the target scenario variable that the current traffic scenario belongs to the discontinuous green wave band scenario, the constraint condition expression and the target function in the discontinuous green wave band scenario are determined according to the preset green wave bandwidth adjustment expression; the preset green wave bandwidth adjustment expression is derived from the discontinuous green wave band position constraint and the continuous green wave band position constraint in the MULTIBAND model.

[0082] In another possible implementation, when it is determined according to the target scene variable that the current traffic scene belongs to a continuous green wave band scene, a constraint condition expression and a target function in the continuous green wave band scene are determined according to the preset green wave band width adjustment expression; the traffic signal parameters are input into the constraint condition expression and the target function in the continuous green wave band scene for calculation, and a green wave coordination control parameter, that is, p i = 0, u i+1 = 0, at this time, the constraint is consistent with the corresponding constraint in the current MULTIBAND model.

[0083] The present application improves the current MULTIBAND model, so that it can be applied to both continuous green wave band scenes and discontinuous green wave band scenes, and can be regarded as an extension of the MULTIBAND model.

[0084] Specifically, the improvement of the present application is that part of the constraints of the existing MULTIBAND model is maintained, the part of the constraints includes green wave band width ratio constraint, period constraint, cyclic integer equality constraint, speed constraint and speed change constraint, the uplink or downlink green wave band position constraint is modified, and the uplink or downlink green wave band discontinuity times constraint is added, thereby improving the scene generality of the current MULTIBAND model.

[0085] It should be noted that the same constraints as the current MULTIBAND model will not be described again, and the constraints of the discontinuous green wave band scene improved by the present application, that is, the uplink or downlink green wave band discontinuity times constraint and the uplink or downlink green wave band position constraint, will be described below.

[0086] Generally, the green wave coordination control algorithm time-distance diagram can be drawn according to the traffic signal parameters and the application scene parameters, as shown in Figure 2 . Figure 2 The algorithm time-distance diagram of the present application can be obtained from the algorithm time-distance diagram, and the relationship between the parameters can be determined according to the relationship between the parameters to determine the expression of the mutual constraint between the parameters.

[0087] Suppose b i is the uplink green wave band between S i and S i+1 , then the part close to S i+1 of the green wave band is its front end, and the part close to S i is its rear end; similarly, suppose b is the downlink green wave band between S i and S i+1 , then the part close to S i of the green wave band is its front end, and the part close to S i+1 is its rear end.

[0088] In the embodiment of the present application, when setting the uplink or downlink green band discontinuity constraint, the cumulative number of uplink green band discontinuities is set to be less than or equal to the input uplink maximum discontinuity number stop; the expression is: where p i In the upward green wave band at intersection S i It is discontinuous, n is the intersection S in the upward green wave band i Discontinuous number; and, set the cumulative number of discontinuous places of the downlink green wave band to be less than or equal to the maximum number of discontinuous places entered downlink The expression is: in In the downlink green wave band at intersection S i It is discontinuous, n is the intersection S in the downlink green wave band i Discontinuous quantity.

[0089] In the embodiment of the present application, for the uplink, the uplink green wave band position constraint is generated in the following manner. Assuming that the intersection S i and intersection S i+1 Green band b between i With intersection S i+1 and intersection S i+2 Green band b between i+1 Discontinuous, such as Figure 2 As shown, at this time, the uplink green wave band b is set i At the intersection S i The left and right boundaries of the location are within the green light duration, and the uplink green wave band b is set i At the intersection S i+1 The left and right boundaries of the red light are within the red light duration;

[0090] Set the upstream green band b i At the intersection S i The first expression of the left and right boundaries within the green light duration is:

[0091]

[0092] Set the upstream green band b i At the intersection S i+1 The second expression that the left and right boundaries must be within the red light duration is: in,

[0093] w i b is the ratio of the time from the midpoint of the i-th uplink bandwidth to the end of the nearest red light to the signal cycle; i For intersection S i and S i+1 Uplink bandwidth between i For intersection Si The ratio of the uplink red light duration to the signal cycle, u i is the bandwidth b i The midpoint to the bandwidth b i+1 The ratio of the midpoint duration to the signal period.

[0094] In the embodiment of the present application, for the downlink, the downlink green wave position constraint is generated in the following manner. Assuming that the intersection S i+1 and intersection S i Green wave belt between With intersection S i and intersection S i-1 Green wave belt between Discontinuous, such as Figure 2 As shown, the downlink green wave band is set at this time At the intersection S i+1 The left and right boundaries of the station are within the green light duration, and a downward green wave band is set. The intersection is S i The left and right boundaries of the area are within the red light duration;

[0095] Set the downlink green band At the intersection S i+1 The third expression for the left and right boundaries within the green light duration is:

[0096]

[0097] Set the downlink green band The intersection is S i The fourth expression that the left and right boundaries must be within the red light duration is:

[0098] in,

[0099] Bandwidth Midpoint to bandwidth The ratio of the midpoint duration to the signal period, is the ratio of the time from the midpoint of the i-th downlink bandwidth to the start of the nearest red light to the signal cycle, For intersection S i and S i+1 The downlink bandwidth between For intersection S i The ratio of the duration of the downstream red light to the signal cycle.

[0100] Furthermore, the continuous green band position constraint in the MULTIBAND model includes an upstream position constraint expression and a downstream position constraint expression, wherein the upstream position constraint expression of the continuous green band is:

[0101]

[0102] The continuous green wave band downlink position constraint expression is:

[0103]

[0104] The preset green wave band width adjustment expression is generated according to the following steps: a first discriminant is obtained by deforming the second expression and the continuous green wave band uplink position constraint expression in the MULTIBAND model; the first discriminant is: -p i r i+1 +(1 / 2)b i ≤w i+1 -u i+1 ≤(1-p i )(1-r i+1 )-(1 / 2)b i ; a second discriminant is obtained by deforming the fourth expression and the continuous green wave band downlink position constraint expression in the MULTIBAND model; the second discriminant is: wherein the first discriminant is determined as an uplink scene calculation expression, and the second discriminant is determined as a downlink scene calculation expression; a preset green wave band width adjustment expression is obtained according to the uplink scene calculation expression and the downlink scene calculation expression; wherein,

[0105] p i is an uplink scene control variable, is a downlink scene control variable, r i is a proportion of an uplink red light duration of the intersection S i to a signal cycle, is a proportion of a downlink red light duration of the intersection S i to a signal cycle, b i is an uplink bandwidth between the intersection S i and S i+1 , is a downlink bandwidth between the intersection S i and S i+1 , i is a proportion of a duration from a midpoint of an ith uplink bandwidth to a nearest red light end to a signal cycle, is a proportion of a duration from a midpoint of an ith downlink bandwidth to a nearest red light start to a signal cycle, u i is a proportion of a duration from a midpoint of the bandwidth b i to a midpoint of the bandwidth b i+1 , is a proportion of a duration from a midpoint of the bandwidth to a midpoint of the bandwidth .

[0106] S104, controlling the green wave bandwidth of the to-be-controlled arterial highway according to the constraint condition expression and the objective function under the discontinuous green wave band scenario.

[0107] In the embodiments of the present application, when the green wave bandwidth of the to-be-controlled arterial highway is controlled according to the constraint condition expression and the objective function under the discontinuous green wave band scenario, first, the green wave coordination control parameters are obtained by calculation according to the traffic light signal parameters, the constraint condition expression and the objective function under the discontinuous green wave band scenario, such as obtaining the maximum green wave bandwidth, that is, the maximum green wave bandwidth is solved under the constraint condition of the discontinuous green wave band scenario according to the constructed objective function, and then the traffic lights of the to-be-controlled arterial highway are regulated and controlled based on the green wave coordination control parameters to control the green wave bandwidth of the to-be-controlled arterial highway.

[0108] For example, the common constraint conditions of the MULTIBAND model in the present application and the prior art include green wave band bandwidth ratio constraint, cycle constraint, cyclic integer equality constraint, speed constraint and speed change constraint.

[0109] The expression of the green wave band bandwidth ratio constraint is:

[0110]

[0111] The expression of the cycle constraint is: 1 / C1≤z≤1 / C2;

[0112] The expression of the cyclic integer equality constraint is:

[0113]

[0114] The expression of the speed constraint is:

[0115]

[0116] The expression of the speed change constraint is:

[0117]

[0118] The objective function is shown as MILP-1, wherein the parameters to be optimized are b i , t i , u i , p i , δ i , w, z, m i .

[0119] MILP-1:

[0120]

[0121] wherein, a i is the weight of the bandwidth between the uplink (downlink) signal S i and S i+1 , which can be calculated by the total flow and the saturation flow of the link, as shown in the formula:

[0122]

[0123] Therefore, in order to ensure that the vehicle passes through the first intersection and the last intersection of the arterial road smoothly, let u1, u n , p1, p n , be 0. ε is infinitesimal.

[0124] The specific explanation of each parameter in the above expression is shown in, for example, Figure 3

[0125] In the embodiments of the present application, the green wave coordination control system first acquires the traffic signal parameters and application scenario parameters of the arterial road to be controlled, then determines the target scenario variables according to the traffic signal parameters and application scenario parameters, and in combination with a preset green wave bandwidth adjustment expression, and when it is determined according to the target scenario variables that the current traffic scenario belongs to a discontinuous green wave band scenario, the constraint condition expression and the objective function in the discontinuous green wave band scenario are determined according to the preset green wave bandwidth adjustment expression; the preset green wave bandwidth adjustment expression is derived from the discontinuous green wave band position constraint and the continuous green wave band position constraint in the MULTIBAND model, and finally the green wave bandwidth of the arterial road to be controlled is controlled according to the constraint condition expression and the objective function in the discontinuous green wave band scenario. Since the present application sets a preset green wave bandwidth adjustment expression, the preset green wave bandwidth adjustment expression contains a constraint condition expression, and when the discontinuous green wave band scenario occurs, the constraint condition expression and the objective function in the scenario can be determined according to the preset green wave bandwidth adjustment expression to control the green wave bandwidth of the arterial road, solving the problem that the MAXBAND model and the MULTIBAND model are not applicable to the discontinuous green wave band scenario, thereby improving the vehicle fleet passing efficiency.

[0126] The following is an embodiment of the system of the present application, which can be used to execute the method embodiments of the present application. For details not disclosed in the system embodiments of the present application, please refer to the method embodiments of the present application.

[0127] Please refer to Figure 4 ​Fig. 1 is a structural schematic diagram of a green wave coordination control system provided by an exemplary embodiment of the present application. The green wave coordination control system can be realized by software, hardware or a combination of both to become all or part of a terminal. The system 1 comprises a parameter acquisition module 10, a scene parameter determination module 20, an expression and function determination module 30 and a green wave bandwidth control module 40.

[0128] The parameter acquisition module 10 is configured to acquire the traffic light signal parameters and application scene parameters of the to-be-controlled arterial highway.

[0129] The scene parameter determination module 20 is configured to determine target scene variables according to the traffic light signal parameters and application scene parameters and in combination with a preset green wave bandwidth adjustment expression.

[0130] The expression and function determination module 30 is configured to determine a constraint condition expression and a target function under the discontinuous green wave band scene according to the preset green wave bandwidth adjustment expression when it is determined according to the target scene variables that the current traffic scene belongs to the discontinuous green wave band scene. The preset green wave bandwidth adjustment expression is derived from the discontinuous green wave band position constraint and the continuous green wave band position constraint in the MULTIBAND model.

[0131] The green wave bandwidth control module 40 is configured to control the green wave bandwidth of the to-be-controlled arterial highway according to the constraint condition expression and the target function under the discontinuous green wave band scene.

[0132] It should be noted that the green wave coordination control system provided by the above embodiment is only used for executing the green wave coordination control method, and the above-mentioned division of the functional modules is only used for example, and in actual application, the above-mentioned functions can be completed by different functional modules according to the needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the above-described functions. In addition, the green wave coordination control system and the green wave coordination control method provided by the above embodiment belong to the same concept, and the implementation process is described in detail in the method embodiment, which will not be repeated here.

[0133] The above-mentioned serial numbers of the embodiments of the present application are only for description, and do not represent the advantages or disadvantages of the embodiments.

[0134] In the embodiment of the present application, the green wave coordination control system first acquires the traffic light signal parameters and application scenario parameters on the to-be-controlled highway trunk, then determines the target scenario variable according to the traffic light signal parameters and application scenario parameters and in combination with a preset green wave bandwidth adjustment expression, and when it is determined according to the target scenario variable that the current traffic scenario belongs to a discontinuous green wave band scenario, determines the constraint condition expression and the objective function in the discontinuous green wave band scenario according to the preset green wave bandwidth adjustment expression; the preset green wave bandwidth adjustment expression is derived from the discontinuous green wave band position constraint and the continuous green wave band position constraint in the MULTIBAND model, and finally controls the green wave bandwidth of the to-be-controlled highway trunk according to the constraint condition expression and the objective function in the discontinuous green wave band scenario. Since the preset green wave bandwidth adjustment expression is set in the present application, the preset green wave bandwidth adjustment expression contains the constraint condition, and when the discontinuous green wave band scenario occurs, the constraint condition expression and the objective function in the scenario can be determined according to the preset green wave bandwidth adjustment expression to control the green wave bandwidth of the highway trunk, solving the problem that the MAXBAND model and the MULTIBAND model are not applicable to the discontinuous green wave band scenario, thereby improving the vehicle fleet passing efficiency.

[0135] The present application also provides a computer readable medium having program instructions stored thereon, which, when executed by a processor, implement the green wave coordination control method provided by each of the method embodiments.

[0136] The present application also provides a computer program product containing instructions, which, when executed on a computer, cause the computer to perform the green wave coordination control method of each of the method embodiments.

[0137] Please refer to Figure 5 The present application provides a terminal structure schematic diagram. As shown in Figure 5 The terminal 1000 can include at least one processor 1001, at least one network interface 1004, a user interface 1003, a memory 1005, and at least one communication bus 1002.

[0138] The communication bus 1002 is used to realize the connection and communication between the components.

[0139] The user interface 1003 can include a display screen (Display), a camera (Camera), and optionally a standard wired interface, a wireless interface.

[0140] The network interface 1004 can optionally include a standard wired interface, a wireless interface (such as a WI-FI interface).

[0141] The processor 1001 can include one or more processing cores. The processor 1001 connects various parts within the entire electronic device 1000 through various interfaces and lines, and performs various functions of the electronic device 1000 and processes data by running or executing instructions, programs, code sets, or instruction sets stored in the memory 1005, and calling data stored in the memory 1005. Alternatively, the processor 1001 can be implemented in at least one of a hardware form of a digital signal processor (DSP), a field-programmable gate array (FPGA), a programmable logic array (PLA). The processor 1001 can integrate a combination of one or several of a central processing unit (CPU), a graphics processing unit (GPU), and a modem. Among them, the CPU mainly processes an operating system, a user interface, and an application program; the GPU is responsible for rendering and drawing the content to be displayed on the display screen; and the modem is used for processing wireless communication. It can be understood that the above-mentioned modem can also not be integrated into the processor 1001, but can be realized by a separate chip.

[0142] The memory 1005 can include a random access memory (RAM) and can also include a read-only memory (ROM). Optionally, the memory 1005 includes a non-transitory computer-readable storage medium. The memory 1005 can be used to store instructions, programs, codes, code sets, or instruction sets. The memory 1005 can include a program storage area and a data storage area, wherein the program storage area can store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the above-mentioned various method embodiments, etc.; the data storage area can store data involved in the above-mentioned various method embodiments, etc. The memory 1005 can also be at least one storage system located away from the above-mentioned processor 1001. As shown, the memory 1005 as a computer storage medium can include an operating system, a network communication module, a user interface module, and a green wave coordination control application program. Figure 5

[0143] In Figure 5 ​In the terminal 1000 shown, the user interface 1003 is mainly used to provide an interface for the user to input, and obtain data input by the user; and the processor 1001 can be used to call a green wave coordination control application program stored in the memory 1005, and specifically perform the following operations:

[0144] obtain the red light signal parameters and the application scenario parameters on the to-be-controlled arterial highway;

[0145] determine a target scenario variable according to the red light signal parameters and the application scenario parameters, and in combination with a preset green wave bandwidth adjustment expression;

[0146] when it is determined according to the target scenario variable that the current traffic scenario belongs to a discontinuous green wave band scenario, determine a constraint condition expression and a target function in the discontinuous green wave band scenario according to the preset green wave bandwidth adjustment expression; the preset green wave bandwidth adjustment expression is derived from a continuous green wave band position constraint in a MULTIBAND model;

[0147] the continuous green wave band position constraint in the MULTIBAND model is deformed;

[0148] control the green wave bandwidth of the to-be-controlled arterial highway according to the constraint condition expression and the target function in the discontinuous green wave band scenario.

[0149] In one embodiment, the processor 1001 further performs the following operations:

[0150] when the scenario control variable p i is calculated to be 0 according to the red light signal parameters and the application scenario parameters, and the target scenario decision variable u i+1 is 0, it is determined that the current traffic scenario belongs to a continuous green wave band scenario;

[0151] or,

[0152] when the scenario control variable p i is calculated to be 1 according to the red light signal parameters and the application scenario parameters, and the target scenario decision variable u i+1 is not 0, it is determined that the current traffic scenario belongs to a discontinuous green wave band scenario.

[0153] In one embodiment, the processor 1001 further performs the following operations:

[0154] when it is determined according to the target scenario variable that the current traffic scenario belongs to a continuous green wave band scenario, determine a constraint condition expression and a target function in the continuous green wave band scenario according to the preset green wave bandwidth adjustment expression; input the red light signal parameters into the constraint condition expression and the target function in the continuous green wave band scenario for calculation, to obtain a green wave coordination control parameter.

[0155] In one embodiment, the processor 1001 also performs the following operations:

[0156] The cumulative number of times of setting the number of discontinuities of the uplink green wave band is less than or equal to the input maximum number of discontinuities stop of the uplink; the expression is: where p i is discontinuous at the intersection S i , n is the number of discontinuities of the uplink green wave band at the intersection S i , and

[0157] The cumulative number of times of setting the number of discontinuities of the downlink green wave band is less than or equal to the input maximum number of discontinuities The expression is: where is discontinuous at the intersection S i , n is the number of discontinuities of the downlink green wave band at the intersection S i .

[0158] In one embodiment, the processor 1001 also performs the following operations:

[0159] When the green wave band b i between the intersection S i+1 and the intersection S i is discontinuous with the green wave band b i+1 between the intersection S i+2 and the intersection S i+1 , the left and right boundaries of the uplink green wave band b i at the intersection S i are set to be within the green light duration, and the left and right boundaries of the uplink green wave band b i at the intersection S i+1 are set to be within the red light duration; wherein

[0160] The first expression for setting the left and right boundaries of the uplink green wave band b i at the intersection S i to be within the green light duration is:

[0161] The second expression for setting the left and right boundaries of the uplink green wave band b i at the intersection S i+1 to be within the red light duration is: wherein

[0162] w i is the proportion of the signal period occupied by the duration from the midpoint of the ith uplink bandwidth to the end of the nearest red light; b i is the uplink bandwidth between the intersection S i and S i+1 ; r i is the proportion of the signal period occupied by the duration from the midpoint of the ith downlink bandwidth to the end of the nearest red light; b iThe ratio of the uplink red light duration to the signal cycle, u i is the bandwidth b i The midpoint to the bandwidth b i+1 The ratio of the midpoint duration to the signal period.

[0163] In one embodiment, the processor 1001 further performs the following operations:

[0164] At the intersection S i+1 and intersection S i Green wave belt between With intersection S i and intersection S i-1 Green wave belt between When discontinuous, set the downlink green wave band At the intersection S i+1 The left and right boundaries of the station are within the green light duration, and a downward green wave band is set. The intersection is S i The left and right boundaries of the area are within the red light duration;

[0165] Set the downlink green band At the intersection S i+1 The third expression for the left and right boundaries within the green light duration is:

[0166]

[0167] Set the downlink green band The intersection is S i The fourth expression that the left and right boundaries must be within the red light duration is:

[0168] in,

[0169] Bandwidth Midpoint to bandwidth The ratio of the midpoint duration to the signal period, is the ratio of the time from the midpoint of the i-th downlink bandwidth to the start of the nearest red light to the signal cycle, For intersection S i and S i+1 The downlink bandwidth between For intersection S i The ratio of the duration of the downstream red light to the signal cycle.

[0170] In one embodiment, the processor 1001 further performs the following operations:

[0171] The first discriminant is obtained by transforming the second expression and the continuous green wave band upstream position constraint expression in the MULTIBAND model; the first discriminant is:

[0172] -p i r i+1 +(1 / 2)b i ≤w i+1 -u i+1 ≤(1-p i )(1-r i+1 )-(1 / 2)b i ;

[0173] The second discriminant is obtained by transforming the fourth expression and the continuous green wave band downward position constraint expression in the MULTIBAND model; the second discriminant is:

[0174] in,

[0175] Determine the first discriminant as an uplink scenario calculation expression, and determine the second discriminant as a downlink scenario calculation expression;

[0176] According to the uplink scenario calculation expression and the downlink scenario calculation expression, a preset green wave bandwidth adjustment expression is obtained; wherein,

[0177] p i Control variables for the uplink scenario, is the downlink scenario control variable, r i For intersection S i The ratio of the uplink red light duration to the signal cycle, For intersection S i The ratio of the duration of the red light in the downlink direction to the signal cycle, b i For intersection S i and S i+1 The uplink bandwidth between For intersection S i and S i+1 The downlink bandwidth between i is the ratio of the duration from the midpoint of the i-th uplink bandwidth to the end of the nearest red light to the signal cycle, u is the ratio of the time from the midpoint of the i-th downlink bandwidth to the start of the nearest red light to the signal cycle, i is the bandwidth b i The midpoint to the bandwidth b i+1 The ratio of the midpoint duration to the signal period, Bandwidth Midpoint to bandwidth The ratio of the midpoint duration to the signal period.

[0178] In one embodiment, the processor 1001, when performing control on the green wave bandwidth of the to-be-controlled arterial road according to the constraint condition expression and the objective function under the discontinuous green wave band scenario, specifically performs the following operations:

[0179] According to the traffic light signal parameters, the constraint condition expression and the objective function under the discontinuous green wave band scenario, the green wave coordination control parameter is obtained by calculation.

[0180] The traffic light of the to-be-controlled arterial road is regulated based on the green wave coordination control parameter, so as to control the green wave bandwidth of the to-be-controlled arterial road.

[0181] In the embodiments of the present application, the green wave coordination control system first acquires the traffic light signal parameters and the application scenario parameters on the to-be-controlled arterial road, and then determines the target scenario variable according to the traffic light signal parameters and the application scenario parameters, and combines the preset green wave bandwidth adjustment expression. When it is determined that the current traffic scenario belongs to the discontinuous green wave band scenario according to the target scenario variable, the constraint condition expression and the objective function under the discontinuous green wave band scenario are determined according to the preset green wave bandwidth adjustment expression. The preset green wave bandwidth adjustment expression is deformed according to the discontinuous green wave band position constraint and the continuous green wave band position constraint in the MULTIBAND model. Finally, the green wave bandwidth of the to-be-controlled arterial road is controlled according to the constraint condition expression and the objective function under the discontinuous green wave band scenario. Since the preset green wave bandwidth adjustment expression is set in the present application, the constraint condition is included in the preset green wave bandwidth adjustment expression. When the discontinuous green wave band scenario occurs, the green wave bandwidth of the arterial road can be controlled according to the constraint condition and the objective function determined according to the preset green wave bandwidth adjustment expression. The situation that the MAXBAND model and the MULTIBAND model are not applicable to the discontinuous green wave band scenario is solved, thereby improving the vehicle platoon passing efficiency.

[0182] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be completed by a computer program instructing related hardware. The green wave coordination control program can be stored in a computer readable storage medium. When the program is executed, it can include the processes of the above-mentioned embodiments. The storage medium can be a magnetic disc, an optical disc, a read-only memory or a random access memory, etc.

[0183] The above only describes the preferred embodiments of the present application, and of course cannot limit the scope of the rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope of the present application.

Claims

1. A green wave coordination control method, characterized by, The method comprises: acquiring a red-green light signal parameter and an application scene parameter on a to-be-controlled arterial highway; determining a target scene variable according to the red-green light signal parameter and the application scene parameter and in combination with a preset green wave bandwidth adjustment expression; when it is determined according to the target scene variable that a current traffic scene belongs to a discontinuous green wave band scene, determining a constraint condition expression and a target function in the discontinuous green wave band scene according to the preset green wave bandwidth adjustment expression; the preset green wave bandwidth adjustment expression is deformed according to a discontinuous green wave band position constraint and a continuous green wave band position constraint in a MULTIBAND model; controlling a green wave bandwidth of the to-be-controlled arterial highway according to the constraint condition expression and the target function in the discontinuous green wave band scene; wherein, the target scene variable comprises a scene control variable and a target scene decision variable; the method further comprises: when it is determined according to the red-green light signal parameter and the application scene parameter that the scene control variable is 0 and the target scene decision variable is 0, it is determined that the current traffic scene belongs to a continuous green wave band scene; or when it is determined according to the red-green light signal parameter and the application scene parameter that the scene control variable is 1 and the target scene decision variable is not 0, it is determined that the current traffic scene belongs to a discontinuous green wave band scene.

2. The method of claim 1, wherein, the constraint condition in the discontinuous green wave band scene at least comprises: an uplink or downlink green wave band discontinuity constraint, an uplink or downlink green wave band position constraint; the method further comprises: when it is determined according to the target scene variable that the current traffic scene belongs to a continuous green wave band scene, determining a constraint condition expression and a target function in the continuous green wave band scene according to the preset green wave bandwidth adjustment expression; inputting the red-green light signal parameter into the constraint condition expression and the target function in the continuous green wave band scene for calculation to obtain a green wave coordination control parameter.

3. The method of claim 2, wherein, the uplink or downlink green wave band discontinuity constraint is generated in the following manner, comprising: The accumulated number of times of setting the number of discontinuities of the uplink green wave band is less than or equal to the input maximum number of discontinuities of the uplink stop; the expression is: where p i is the discontinuity of the uplink green wave band at the intersection S i , n is the number of discontinuities of the uplink green wave band at the intersection S i ; and, The accumulated number of times of setting the discontinuous number of the downlink green wave band is less than or equal to the input downlink maximum discontinuous number The expression is: Wherein The downlink green wave band is discontinuous at the intersection S i n is the discontinuous number of the downlink green wave band at the intersection S i ​ 4. The method of claim 2, wherein, the uplink green wave band position constraint is generated in the following manner, comprising: Green wave band b between intersection S i and intersection S i+1 Green wave band b between intersection S i and intersection S i+1 Green wave band b between intersection S i+2 and intersection S i+1 Discontinuous, set up the uplink green wave band b i The left and right boundaries at intersection S i are within the green light duration, and the uplink green wave band b is set i The left and right boundaries at intersection S i+1 are within the red light duration; wherein, Setting uplink green wave band b i At the left and right boundaries of intersection S i The first expression of the green light duration is: Setting uplink green wave band b i At the left and right boundaries of intersection S i+1 The second expression is: Where, w i is the proportion of the signal cycle that the time length from the midpoint of the ith uplink bandwidth to the end of the red light occupies;b i is the uplink bandwidth between intersections S i and S i+1 ; andr i is the proportion of the signal cycle that the red light time length of the uplink of intersection S i occupies, u i is the proportion of the signal cycle that the time length from the midpoint of bandwidth b i to the midpoint of bandwidth b i+1 occupies.

5. The method of claim 4, wherein, the downlink green wave band position constraint is generated in the following manner, comprising: Green wave band between intersection S i+1 and intersection S i Green wave band between intersection S and intersection S i Green wave band between intersection S i-1 and intersection S Discontinuous, set downlink green wave band Left and right boundaries at intersection S i+1 are within green light duration, and set downlink green wave band Left and right boundaries of intersection at S i are within red light duration; Setting downlink green wave band At the left and right boundaries of the intersection S i+1 The third expression of the left and right boundaries at the green light duration is: Setting downlink green wave band The left and right boundaries of the intersection at S i The fourth expression that the left and right boundaries of the intersection at S must be within the red light duration is: wherein, Bandwidth Midpoint to bandwidth The ratio of the midpoint duration to the signal period, is the ratio of the time from the midpoint of the i-th downlink bandwidth to the start of the nearest red light to the signal cycle, For intersection S i and S i+1 The downlink bandwidth between For intersection S i The ratio of the duration of the downstream red light to the signal cycle.

6. The method of claim 5, wherein, the continuous green wave band position constraint in the MULTIBAND model comprises an uplink position constraint expression and a downlink position constraint expression, and the preset green wave bandwidth adjustment expression is generated in the following steps, comprising: the second expression is deformed with the uplink position constraint expression in the continuous green wave band in the MULTIBAND model to obtain a first discriminant; the first discriminant is: - p i r i+1 +(1 / 2)b i ≤w i+1 -u i+1 ≤(1-p i )(1-r i+1 )-(1 / 2)b i ; the fourth expression is deformed with the downlink position constraint expression in the continuous green wave band in the MULTIBAND model to obtain a second discriminant; the second discriminant is: wherein, the first discriminant is determined as an uplink scene calculation expression, and the second discriminant is determined as a downlink scene calculation expression; a preset green wave bandwidth adjustment expression is obtained according to the uplink scene calculation expression and the downlink scene calculation expression; wherein, p i Control variables for the uplink scenario, is the downlink scenario control variable, r i For intersection S i The ratio of the uplink red light duration to the signal cycle, For intersection S i The ratio of the duration of the red light in the downlink direction to the signal cycle, b i For intersection S i and S i+1 The uplink bandwidth between For intersection S i and S i+1 The downlink bandwidth between i is the ratio of the duration from the midpoint of the i-th uplink bandwidth to the end of the nearest red light to the signal cycle, u is the ratio of the time from the midpoint of the i-th downlink bandwidth to the start of the nearest red light to the signal cycle, i is the bandwidth b i The midpoint to the bandwidth b i+1 The ratio of the midpoint duration to the signal period, Bandwidth Midpoint to bandwidth The ratio of the midpoint duration to the signal period.

7. The method of claim 1, wherein, the controlling of the green wave bandwidth of the to-be-controlled arterial highway according to the constraint condition expression and the target function in the discontinuous green wave band scene comprises: According to the traffic light signal parameter, the constraint condition expression under the discontinuous green wave band scene, and the target function, calculation is performed to obtain a green wave coordination control parameter; Based on the green wave coordination control parameter, the traffic light of the to-be-controlled highway trunk is regulated and controlled to control the green wave band width of the to-be-controlled highway trunk.

8. A green wave coordination control system implemented using the method of any one of claims 1-7, characterized in that, The system comprises: A parameter acquisition module configured to acquire a traffic light signal parameter and an application scene parameter of a to-be-controlled highway trunk; A scene parameter determination module configured to determine a target scene variable according to the traffic light signal parameter and the application scene parameter and in combination with a preset green wave band width adjustment expression; An expression and function determination module configured to, when it is determined according to the target scene variable that a current traffic scene belongs to a discontinuous green wave band scene, determine a constraint condition expression and a target function under the discontinuous green wave band scene according to the preset green wave band width adjustment expression; the preset green wave band width adjustment expression is derived from a discontinuous green wave band position constraint and a continuous green wave band position constraint in a MULTIBAND model; A green wave band width control module configured to control a green wave band width of the to-be-controlled highway trunk according to the constraint condition expression under the discontinuous green wave band scene and the target function.

9. A computer storage medium, characterized in that The computer storage medium stores a plurality of instructions, which are suitable for being loaded and executed by a processor to implement the method in any one of claims 1-7.

10. A terminal, characterized by comprising: Comprise: A processor and a memory; wherein the memory stores a computer program, and the computer program is suitable for being loaded and executed by the processor to implement the method in any one of claims 1-7.

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