Tramcar priority passing method and device

Abstract

The invention provides a tramcar priority passing method and device, and relates to the technical field of traffic control. The method comprises the following steps: if a first detection signal sent by an arrival detector of the tramcar is received, controlling the lighting logic of a traffic signal lamp so as to enable the tramcar to pass preferentially; the first detection signal indicates that the tramcar passes through the arrival detector; if a second detection signal sent by a departure detector of the tramcar is received, the strategy of passing priority of the tramcar is ended; the second detection signal indicates that the tramcar passes through the leaving detector; wherein the installation position of the arrival detector is determined based on the green light duration of the traffic signal lamp; the green light duration is determined based on the distance of the intersection where the tramcar needs to pass and the average speed of the tramcar. According to the tramcar priority passing method and device provided by the invention, the priority passing of the tramcar can be ensured.

Description

Technical Field

[0001] The present application relates to the technical field of traffic control, and in particular to a method and device for providing tram priority passage. Background Art

[0002] Compared with buses, trams have larger capacity and faster running speed, but in practical applications there is a key factor that affects their operating efficiency: the delay of trams at intersections of tracks or urban roads. In response to this, many cities implement tram traffic signal priority control methods at such intersections to ensure their operating efficiency.

[0003] The existing methods are mainly aimed at intersections with fixed-timing traffic lights. With the rapid development of smart transportation, adaptive control of traffic lights at intersections is becoming more and more common. It is necessary to propose new methods to solve the problem of how to achieve priority passage when trams pass through intersections with adaptively controlled traffic lights. Summary of the invention

[0004] The present application provides a tram priority passage method and device, which are used to solve the defect that there is no tram priority passage method for adaptively controlling traffic lights in the prior art, so that trams can smoothly achieve priority passage when passing through intersections with adaptively controlled traffic lights.

[0005] In a first aspect, the present application provides a tram priority passage method, comprising:

[0006] If a first detection signal sent by an arrival detector of a tram is received, controlling the lighting logic of the traffic light to allow the tram to pass first; the first detection signal indicates that the tram has passed the arrival detector;

[0007] If a second detection signal sent by the departure detector of the tram is received, the strategy of giving priority to the tram is terminated; the second detection signal indicates that the tram has passed the departure detector;

[0008] The installation position of the arrival detector is determined based on the green light duration of the traffic light; the green light duration is determined based on the distance of the intersection that the tram is to pass and the average speed of the tram.

[0009] Optionally, the intersection distance includes a first intersection distance and a second intersection distance; when the tram needs to stop at a platform when passing through the intersection, the intersection distance is the first intersection distance; the first intersection distance is the distance between the platform of the tram and the departure detector; when the tram does not need to stop at a platform when passing through the intersection, the intersection distance is the second intersection distance; the second intersection distance is determined based on the braking distance of the tram.

[0010] Optionally, the green light duration is determined based on the following method:

[0011] When the tram passes through an intersection and needs to stop at a platform, determining the green light duration based on the first intersection distance, the length of the tram and the average speed;

[0012] When the tram passes through the intersection without stopping at a platform, the green light duration is determined based on the second intersection distance and the average speed.

[0013] Optionally, when the tram needs to stop at a platform after passing through an intersection, determining the green light duration based on the first intersection distance, the length of the tram and the average speed includes:

[0014] Divide the sum of the first intersection distance and the length by the average speed to obtain a first duration;

[0015] Based on the first duration, the green light duration is determined.

[0016] Optionally, when the tram passes through the intersection without stopping at a platform, determining the green light duration based on the second intersection distance and the average speed includes:

[0017] taking a quotient of the second intersection distance divided by the average speed as a second duration;

[0018] Based on the second duration, the green light duration is determined.

[0019] Optionally, the installation position is determined based on the following method:

[0020] When the tram passes through the intersection and needs to stop at a platform, the installation position is determined based on the green light duration, the time for passengers to get on and off the tram, and the average speed;

[0021] When the tram passes through the intersection without stopping at a platform, the installation position is determined based on the green light duration, the yellow light duration of the traffic light, the average speed and the distance from the second intersection.

[0022] Optionally, when the tram passes through an intersection and needs to stop at a platform, determining the installation position based on the green light duration, the time for passengers to get on and off the tram, and the average speed includes:

[0023] Determining the detention time of the tram based on the green light duration;

[0024] Determine a target duration based on the detention duration and the passenger boarding and alighting duration;

[0025] Determining a first distance based on the target duration and the average speed;

[0026] A position in the direction of the first ray and at a distance from the platform by the first distance is taken as the installation position; the first ray takes the platform as an end point and extends in a direction away from the detector.

[0027] Optionally, when the tram passes through the intersection without stopping at a platform, determining the installation position based on the green light duration, the yellow light duration of the traffic light, the average speed and the distance from the second intersection includes:

[0028] Determining a target distance based on the green light duration, the yellow light duration and the average speed;

[0029] determining a second distance based on the target distance and the second intersection distance;

[0030] A position in the direction of the second ray and at a second distance from the departure detector is taken as the installation position; the second ray takes the departure detector as an end point and extends toward the intersection.

[0031] In a second aspect, the present application further provides a tram priority passage device, comprising:

[0032] A first receiving module is used to control the lighting logic of the traffic light if a first detection signal sent by an arrival detector of a tram is received, so that the tram has priority; the first detection signal indicates that the tram has passed the arrival detector;

[0033] A second receiving module is configured to terminate the strategy of giving priority to the tram if a second detection signal sent by the departure detector of the tram is received; the second detection signal indicates that the tram has passed the departure detector;

[0034] The installation position of the arrival detector is determined based on the green light duration of the traffic light; the green light duration is determined based on the distance of the intersection that the tram is to pass and the average speed of the tram.

[0035] In a third aspect, the present application further provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method described in the first aspect when executing the computer program.

[0036] In a fourth aspect, the present application further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method described in the first aspect.

[0037] In a fifth aspect, the present application further provides a computer program product, comprising a computer program, which implements the method described in the first aspect when executed by a processor.

[0038] The tram priority passage method and device provided by the present application determine the green light duration by the distance from the intersection and the average speed of the tram, and determine the installation position of the arrival detector by the green light duration, so as to ensure that the arrival detector detects the passage of the tram at an appropriate position, avoiding the waste of traffic resources caused by the arrival detector being too far away from the intersection, thereby detecting the tram too early and adjusting the traffic lights too early, and also avoiding the safety hazard caused by the arrival detector being too close to the intersection, thereby detecting the tram too late and causing the tram to have insufficient reaction time. This allows the tram to pass through the intersection without obstruction and minimizes the impact on road traffic in other directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the present application or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0040] Figure 1 It is a flowchart of a tram priority passage method provided in an embodiment of the present application;

[0041] Figure 2 This is a schematic diagram of a tram passing through an intersection and needing to stop at a platform provided in an embodiment of the present application;

[0042] Figure 3 This is a schematic diagram of a tram passing through an intersection without stopping at a platform provided in an embodiment of the present application;

[0043] Figure 4 It is a structural schematic diagram of a tram priority passage device provided in an embodiment of the present application;

[0044] Figure 5It is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0046] Figure 1 Schematic diagram of the process of the tram priority passage method provided in the embodiment of the present application. Figure 1 The embodiment of the present application provides a method for giving priority to trams, the execution subject of which may be an electronic device, for example, a controller. The following description is made by taking the execution subject of the method as an example. The method may include:

[0047] Step 110: If a first detection signal sent by a tram arrival detector is received, control the lighting logic of the traffic light to allow the tram to pass first; the first detection signal indicates that the tram has passed the arrival detector;

[0048] Step 120: If a second detection signal sent by the leaving detector of the tram is received, the strategy of giving priority to the tram is terminated; the second detection signal indicates that the tram has passed the leaving detector;

[0049] The installation position of the arrival detector is determined based on the green light duration of the traffic light; the green light duration is determined based on the distance of the intersection that the tram needs to pass and the average speed of the tram.

[0050] In step 110, the arrival detector includes but is not limited to tram detection equipment based on ultrasound, radar, infrared, geomagnetism, etc. After receiving the first detection signal from the arrival detector, the controller can make the best decision based on the traffic load in each traffic direction. In order for the controller to prioritize the green light in the tram direction, it is necessary to maximize the traffic load in non-conflicting road traffic directions according to the first detection signal of the tram. Specifically, if the direction of the tram is the east-west direction, the controller can set the load of the east-west straight road traffic to the maximum value after receiving the first detection signal. In this way, the controller will determine the lighting logic of the adaptive control traffic light based on the adaptive signal control algorithm, and make adjustments to the adaptive control traffic light to ensure that the tram has priority.

[0051] In step 120, the departure detector also uses tram detection equipment including but not limited to those based on ultrasound, radar, infrared, geomagnetism, etc. In order to restore normal road traffic adaptive control as soon as possible after the tram passes through the intersection, it is necessary to terminate the special processing of road traffic load in the direction of the tram in time. The departure detector will detect when the tram passes by and send a second detection signal to the controller to terminate the strategy of giving priority to the tram.

[0052] Among them, the arrival detector can detect the signal of the tram passing only after it is installed in a determined installation position. The controller can determine the green light duration based on the distance of the intersection that the tram needs to pass and the average speed of the tram. Specifically, the green light duration can be the shortest green light duration of the adaptively controlled traffic light. Within the shortest green light duration, it must be ensured that the tram can pass through the intersection. The controller can determine the installation position of the arrival detector based on the green light duration. There are generally no special requirements for the installation position of the departure detector, and it can be as close to the intersection as possible.

[0053] The tram priority passage method provided in the embodiment of the present application determines the green light duration by the distance from the intersection and the average speed of the tram, and determines the installation position of the arrival detector by the green light duration, so as to ensure that the arrival detector detects the passage of the tram at a suitable position, thereby avoiding the waste of traffic resources caused by the arrival detector being too far away from the intersection, thereby detecting the tram too early and adjusting the traffic lights too early, and also avoiding the safety hazard caused by the arrival detector being too close to the intersection, thereby detecting the tram too late and causing the tram to have insufficient reaction time. This allows the tram to pass through the intersection without obstruction and minimizes the impact on road traffic in other directions.

[0054] In one embodiment, the intersection distance includes a first intersection distance and a second intersection distance; when a tram needs to stop at a platform when passing through an intersection, the intersection distance is the first intersection distance; the first intersection distance is the distance between the platform of the tram and the departure detector; when the tram does not need to stop at a platform when passing through an intersection, the intersection distance is the second intersection distance; the second intersection distance is determined based on the braking distance of the tram.

[0055] Specifically, the second intersection distance is not less than the braking distance of the tram. For example, the second intersection distance can be 100 meters.

[0056] The tram priority passage method provided in the embodiment of the present application divides the intersection distance into a first intersection distance and a second intersection distance, and distinguishes the method for determining the intersection distance when there is a platform or not, so that the installation position of the arrival detector can be accurately determined, ensuring that the tram can have priority passage when passing through an intersection with adaptively controlled traffic lights.

[0057] In one embodiment, the green light duration is determined based on the following method: when a tram needs to stop at a platform when passing through an intersection, the green light duration is determined based on the first intersection distance, the length of the tram and the average speed; when the tram does not need to stop at a platform when passing through an intersection, the green light duration is determined based on the second intersection distance and the average speed.

[0058] Furthermore, in one embodiment, when a tram passes through an intersection and needs to stop at a platform, the green light duration is determined based on the first intersection distance, the length of the tram and the average speed, including: dividing the sum of the first intersection distance and the length by the average speed to obtain a first duration; and determining the green light duration based on the first duration.

[0059] Furthermore, in one embodiment, when the tram passes through the intersection without stopping at the platform, the green light duration is determined based on the second intersection distance and the average speed, including: taking the quotient of the second intersection distance divided by the average speed as the second duration; and determining the green light duration based on the second duration.

[0060] Figure 2 : is a schematic diagram of a tram passing through an intersection and needing to stop at a platform provided in an embodiment of the present application. The time it takes for a tram to depart from the platform and pass through the detector without obstruction is called the passing time Th. Figure 2 As shown in the figure, when a tram needs to stop at a platform when passing through an intersection, the green light duration is calculated as follows:

[0061] T g ≥(D c 1 +L) / V

[0062] Among them, T g is the green light duration, D c1 is the distance to the first intersection, L is the length of the tram, and V is the average speed of the tram.

[0063] Among them, (D c 1 Based on the above formula, it can be ensured that the tram can pass through the intersection within the green light duration.

[0064] Figure 3 : is a schematic diagram of a tram passing through an intersection without stopping at a platform provided in an embodiment of the present application. The time taken by the tram to pass through the departure detector without obstruction from the arrival detector is called the passing time Th. Figure 3 As shown in the figure, when the tram passes through the intersection without stopping at the platform, the green light duration is calculated as follows:

[0065] D c2 / V≤Tg

[0066] Among them, D c2 is the distance to the second intersection, V is the average speed of the tram, T g The green light duration.

[0067] Among them, D c2 The value of / V is the second duration. Based on the above formula, it can be ensured that the tram can pass through the intersection within the green light duration.

[0068] The tram priority passage method provided in the embodiment of the present application distinguishes the calculation method of the green light duration when there is a platform or not, so that the installation position of the arrival detector can be accurately determined, ensuring that the tram can have priority passage when passing through the intersection of the adaptively controlled traffic light.

[0069] In one embodiment, the installation position is determined based on the following method: when a tram needs to stop at a platform when passing through an intersection, the installation position is determined based on the green light duration, the passenger boarding and alighting time and the average speed; when a tram does not need to stop at a platform when passing through an intersection, the installation position is determined based on the green light duration, the yellow light duration of the traffic light, the average speed and the distance to the second intersection.

[0070] Furthermore, in one embodiment, when a tram needs to stop at a platform when passing through an intersection, the installation position is determined based on the green light duration, the passenger boarding and alighting time and the average speed, including: determining the detention time of the tram based on the green light duration; determining the target duration based on the detention time and the passenger boarding and alighting time; determining the first distance based on the target duration and the average speed; taking a position in the direction of a first ray and at a first distance from the platform as the installation position; and the first ray extends from the platform to a direction away from the detector.

[0071] Furthermore, in one embodiment, when a tram passes through an intersection without stopping at a platform, the installation position is determined based on the green light duration, the yellow light duration of the traffic light, the average speed and the distance from the second intersection, including: determining the target distance based on the green light duration, the yellow light duration and the average speed; determining the second distance based on the target distance and the distance to the second intersection; taking a position in the direction of the second ray and at a second distance from the detector as the installation position; the second ray extends toward the intersection with the detector as the endpoint.

[0072] like Figure 2 As shown, when a tram passes through an intersection and needs to stop at a platform, the installation position of the arrival detector is calculated as follows:

[0073] T d ≥T g

[0074] T s =T d -T p

[0075] D f =T s ×V

[0076] Among them, T d is the detention time, T g is the green light duration, T s is the target duration, T p is the time it takes for passengers to get on and off the bus, D f is the distance between the installation location of the arrival detector and the platform (i.e., the reaction distance), and V is the average speed of the tram.

[0077] Specifically, the time it takes for a tram to travel from the installation location of the arrival detector to the platform and start again is called the detention time. The detention time includes the time it takes for the tram to travel from the installation location of the arrival detector to the platform (i.e., the target time) and the time it takes for passengers to get on and off the tram.

[0078] The most extreme case is when the time T g After that, the tram direction will be set to green light, which means that the tram’s detention time must be at least greater than T g , can ensure that the traffic signal is green when the tram restarts, so that it can pass without obstruction.

[0079] like Figure 3 As shown in the figure, when the tram passes through the intersection without stopping at the platform, the installation position of the arrival detector is calculated as follows:

[0080] D s ≤D c2 ≤V×T g

[0081] D f ≥V×(T g +T y )

[0082] Among them, D s is the braking distance of the tram, D c2 is the distance to the second intersection, V is the average speed of the tram, T g is the green light duration, D f is the distance between the braking point and the installation position of the arrival detector (i.e., the reaction distance), T y The yellow light distance.

[0083] Specifically, the distance between the installation position of the arrival detector and the departure detector is (D c2 +D f). The distance between the braking point and the departure detector is the second intersection distance. The braking point refers to the position where the tram driver takes the braking operation at the latest when the traffic light is red. y The value is determined according to the actual situation, for example: 3 seconds.

[0084] After the tram is detected by the arrival detector, the data will be sent to the controller. Ideally, the direction signal light of the tram is set to green before the tram reaches the braking point, and remains unchanged while the tram passes through the departure detector, so as to ensure that the tram can pass without obstruction. Considering the most extreme case, that is, when the tram is detected by the arrival detector, the green light in the direction of the tram has just ended, then it is necessary to ensure that the direction of the tram is set to green at the latest when the tram reaches the braking point, so the reaction distance at least ensures that the time for the tram to pass meets the time when the other directions of traffic at the intersection switch from green to red, that is, the shortest green light duration plus the yellow light duration. At the same time, in order to reduce the impact on traffic efficiency in non-tram directions, trams should be able to pass through the intersection within the shortest green light time, that is, the time from the braking point to pass the intersection should not be longer than the shortest green light time. However, in order to ensure that the tram can stop safely in front of the intersection when braking at the braking point, sufficient braking distance is also required. The braking distance is generally recommended to be 100 meters, and specific adjustments need to be made based on actual factors such as the tram's travel speed and braking performance.

[0085] The tram priority passage method provided in the embodiment of the present application can accurately determine the installation position of the arrival detector by distinguishing the calculation method of the installation position of the arrival detector when there is a platform or not, thereby ensuring that the tram can have priority passage when passing through the intersection of the adaptively controlled traffic lights.

[0086] The tram priority passage device provided by the present application is described below. The tram priority passage device described below and the tram priority passage method described above can be referred to each other.

[0087] Figure 4 Schematic diagram of the structure of the tram priority passage device provided in the embodiment of the present application. Figure 4 The tram priority passage device provided in the embodiment of the present application may include:

[0088] The first receiving module 410 is used to control the lighting logic of the traffic light so that the tram has priority if a first detection signal sent by the arrival detector of the tram is received; the first detection signal indicates that the tram has passed the arrival detector;

[0089] The second receiving module 420 is used to terminate the strategy of giving priority to the tram if a second detection signal sent by the departure detector of the tram is received; the second detection signal indicates that the tram has passed the departure detector;

[0090] The installation position of the arrival detector is determined based on the green light duration of the traffic light; the green light duration is determined based on the distance of the intersection that the tram is to pass and the average speed of the tram.

[0091] The tram priority passage device provided in the embodiment of the present application determines the green light duration by the distance from the intersection and the average speed of the tram, and determines the installation position of the arrival detector by the green light duration, so as to ensure that the arrival detector detects the passage of the tram at a suitable position, thereby avoiding the waste of traffic resources caused by the arrival detector being too far away from the intersection, thereby detecting the tram too early and adjusting the traffic lights too early, and also avoiding the safety hazard caused by the arrival detector being too close to the intersection, thereby detecting the tram too late and causing the tram to have insufficient reaction time. This allows the tram to pass through the intersection without obstruction and minimizes the impact on road traffic in other directions.

[0092] Specifically, the above-mentioned tram priority passage device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be described in detail here.

[0093] Figure 5 Schematic diagram of the structure of the electronic device provided in the embodiment of the present application. Figure 5 As shown, the electronic device may include: a processor 510, a communication interface 520, a memory 530 and a communication bus 540, wherein the processor 510, the communication interface 520 and the memory 530 communicate with each other through the communication bus 540. The processor 510 may call the logic instructions in the memory 530 to execute the tram priority passage method, for example, including:

[0094] If a first detection signal sent by an arrival detector of a tram is received, controlling the lighting logic of the traffic light to allow the tram to pass first; the first detection signal indicates that the tram has passed the arrival detector;

[0095] If a second detection signal sent by the departure detector of the tram is received, the strategy of giving priority to the tram is terminated; the second detection signal indicates that the tram has passed the departure detector;

[0096] The installation position of the arrival detector is determined based on the green light duration of the traffic light; the green light duration is determined based on the distance of the intersection that the tram is to pass and the average speed of the tram.

[0097] In addition, the logic instructions in the above-mentioned memory 530 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art, and the computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0098] On the other hand, the present application also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which is implemented when the computer program is executed by a processor to perform the steps of the tram priority passage method provided by the above methods, for example, including:

[0099] If a first detection signal sent by an arrival detector of a tram is received, controlling the lighting logic of the traffic light to allow the tram to pass first; the first detection signal indicates that the tram has passed the arrival detector;

[0100] If a second detection signal sent by the departure detector of the tram is received, the strategy of giving priority to the tram is terminated; the second detection signal indicates that the tram has passed the departure detector;

[0101] The installation position of the arrival detector is determined based on the green light duration of the traffic light; the green light duration is determined based on the distance of the intersection that the tram is to pass and the average speed of the tram.

[0102] In another aspect, the present application further provides a computer program product, the computer program product comprising a computer program, the computer program may be stored on a non-transitory computer-readable storage medium, and when the computer program is executed by a processor, the computer can execute the steps of the tram priority passage method provided by the above methods, for example, including:

[0103] If a first detection signal sent by an arrival detector of a tram is received, controlling the lighting logic of the traffic light to allow the tram to pass first; the first detection signal indicates that the tram has passed the arrival detector;

[0104] If a second detection signal sent by the departure detector of the tram is received, the strategy of giving priority to the tram is terminated; the second detection signal indicates that the tram has passed the departure detector;

[0105] The installation position of the arrival detector is determined based on the green light duration of the traffic light; the green light duration is determined based on the distance of the intersection that the tram is to pass and the average speed of the tram.

[0106] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0107] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0108] It should also be noted that the terms "first", "second", etc. in the embodiments of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more.

[0109] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0110] "Determine B based on A" in the embodiments of the present application means that the factor A should be considered when determining B. It is not limited to "B can be determined based on A alone", but should also include: "Determine B based on A and C", "Determine B based on A, C and E", "Determine C based on A, and further determine B based on C", etc. In addition, it can also include taking A as a condition for determining B, for example, "When A meets the first condition, use the first method to determine B"; for another example, "When A meets the second condition, determine B", etc.; for another example, "When A meets the third condition, determine B based on the first parameter", etc. Of course, it can also be a condition that takes A as a factor for determining B, for example, "When A meets the first condition, use the first method to determine C, and further determine B based on C", etc.

[0111] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A tram priority passage method, characterized in that: include: If a first detection signal sent by an arrival detector of a tram is received, controlling the lighting logic of the traffic light to allow the tram to pass first; The first detection signal indicates that the tram has passed the arrival detector; If a second detection signal sent by the departure detector of the tram is received, the strategy of giving priority to the tram is terminated; The second detection signal indicates that the tram has passed the departure detector; The installation position of the arrival detector is determined based on the green light duration of the traffic light; the green light duration is determined based on the distance of the intersection that the tram is to pass and the average speed of the tram.

2. The tram priority passage method according to claim 1, characterized in that: The intersection distance includes a first intersection distance and a second intersection distance; when the tram needs to stop at a platform when passing through an intersection, the intersection distance is the first intersection distance; the first intersection distance is the distance between the platform of the tram and the departure detector; when the tram does not need to stop at a platform when passing through an intersection, the intersection distance is the second intersection distance; the second intersection distance is determined based on the braking distance of the tram.

3. The tram priority passage method according to claim 2, characterized in that: The green light duration is determined based on the following method: When the tram passes through an intersection and needs to stop at a platform, determining the green light duration based on the first intersection distance, the length of the tram and the average speed; When the tram passes through the intersection without stopping at a platform, the green light duration is determined based on the second intersection distance and the average speed.

4. The tram priority passage method according to claim 3, characterized in that: When the tram passes through an intersection and needs to stop at a platform, determining the green light duration based on the first intersection distance, the length of the tram and the average speed includes: Divide the sum of the first intersection distance and the length by the average speed to obtain a first duration; Based on the first duration, the green light duration is determined.

5. The tram priority passage method according to claim 3, characterized in that: When the tram passes through the intersection without stopping at a platform, determining the green light duration based on the second intersection distance and the average speed includes: taking a quotient of the second intersection distance divided by the average speed as a second duration; Based on the second duration, the green light duration is determined.

6. The tram priority passage method according to claim 2, characterized in that: The installation location is determined based on the following: When the tram passes through the intersection and needs to stop at a platform, the installation position is determined based on the green light duration, the time for passengers to get on and off the tram, and the average speed; When the tram passes through the intersection without stopping at a platform, the installation position is determined based on the green light duration, the yellow light duration of the traffic light, the average speed and the distance from the second intersection.

7. The tram priority passage method according to claim 6, characterized in that: When the tram passes through an intersection and needs to stop at a platform, determining the installation position based on the green light duration, the time for passengers to get on and off the tram, and the average speed includes: Determining the detention time of the tram based on the green light duration; Determine a target duration based on the detention duration and the passenger boarding and alighting duration; Determining a first distance based on the target duration and the average speed; A position in the direction of the first ray and at a distance from the platform by the first distance is taken as the installation position; the first ray takes the platform as an end point and extends in a direction away from the detector.

8. The tram priority passage method according to claim 6, characterized in that: When the tram passes through the intersection without stopping at a platform, determining the installation position based on the green light duration, the yellow light duration of the traffic light, the average speed and the distance from the second intersection includes: Determining a target distance based on the green light duration, the yellow light duration and the average speed; determining a second distance based on the target distance and the second intersection distance; A position in the direction of the second ray and at a second distance from the departure detector is taken as the installation position; the second ray takes the departure detector as an end point and extends toward the intersection.

9. A tram priority passage device, characterized in that: include: A first receiving module is used to control the lighting logic of the traffic light if a first detection signal sent by the arrival detector of the tram is received, so that the tram has priority to pass; The first detection signal indicates that the tram has passed the arrival detector; A second receiving module is used for terminating the strategy of giving priority to the tram if a second detection signal sent by the departure detector of the tram is received; The second detection signal indicates that the tram has passed the departure detector; The installation position of the arrival detector is determined based on the green light duration of the traffic light; the green light duration is determined based on the distance of the intersection that the tram is to pass and the average speed of the tram.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the tram priority passage method according to any one of claims 1 to 8 is implemented.

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