WO2013029304A1

WO2013029304A1 - Method and signal machine for prior controlling signal

Info

Publication number: WO2013029304A1
Application number: PCT/CN2011/082037
Authority: WO
Inventors: 王彬; 陈维强; 李月高; 冯远宏; 陈晓明; 李瑾
Original assignee: 青岛海信网络科技股份有限公司
Priority date: 2011-08-30
Filing date: 2011-11-10
Publication date: 2013-03-07
Also published as: CN102254444B; CN102254444A

Abstract

A method and a signal machine for prior controlling signal are provided, and they relate to traffic control field. The method comprises that the signal machine judging whether the phase at the current phase barrier (A) being green light after receiving the signal for requesting prior passing through of the vehicle (101), and the signal machine inserting a special phase for giving the vehicle requesting prior passing through green light before the current phase barrier (A) after determining that the phase at current phase barrier (A) being green light (102).The signal machine comprises a judging module (10) for implementing aforementioned judging step (101) and a phase inserting module (20) for implementing aforementioned phase inserting step (102). Because a special phase is inserted at the phase barrier (A) after the signal machine detects a vehicle requesting prior passing through, the vehicle requesting prior passing through can pass through the road crossing in advance as much as possible.

Description

A signal priority control method and a signal machine The present application claims priority to a Chinese patent application filed on August 30, 2011 by the Chinese Patent Office, Application No. 201110198271.9, entitled "Phase Inserted Bus Signal Priority Control Method" The entire contents of which are incorporated herein by reference.

The invention relates to the field of traffic control, and in particular to a signal priority control method and a signal machine.

Background technique

The so-called "bus signal priority" is an implementation method of urban traffic "bus priority". It optimizes the design of signal control schemes for urban road intersections, and achieves the priority of ordinary public transport vehicles and BRT vehicles over social crossings. purpose. The priority of bus signals can greatly improve the capacity of public transport vehicles on urban roads, and encourages residents to choose bus travel modes from the side, which is conducive to the development of public transport. Today, with the increasing traffic pressure in cities, this control method is of great significance for quickly evacuating traffic pressure and alleviating traffic congestion.

The bus signal priority control implementation methods mainly include phase early start, phase late break, phase reversal, phase jump, and the like. The phase early start refers to the green light that lights up the phase of the bus in advance; the phase late break refers to the green time of extending the phase of the bus; the phase reversal refers to changing the phase sequence, adjusting the bus phase to the front, and then following the original phase. The phase sequence releases other vehicles, for example, phase 3 is the bus phase, and phase 1 is currently executed, then phase 3 is adjusted to phase 1; phase jump refers to skipping the phase to be executed, directly performing the bus phase, for example, phase 3 is Bus phase, currently phase 1 is to be executed, phase 1 and phase 2 are skipped, and phase 3 is directly executed. According to the actual engineering experience, the implementation conditions of the bus signal priority mode with early phase and late phase are more demanding, and the phase of the bus request must be required to be the current release phase or the phase to be released. Since the intersection signal control scheme is generally a double loop structure, the phase reverse and phase jump priority modes have a great influence on the normal traffic order. For the reverse rotation and jump gain in the half loop, the phase reversal and phase across the half loop are relatively low. The jump easily causes phase conflict between the two half rings, especially in the case where there is a lap phase in the ring structure.

Summary of the invention

Aiming at the problem that the implementation method of the bus signal priority control method in the prior art is more severe and has a great influence on the normal traffic order, the embodiment of the invention provides a signal priority control method and a signal machine.

The embodiment of the invention provides a signal priority control method, including:

After receiving the signal for requesting the priority transmission of the vehicle, the signal determining whether the phase at the current phase barrier is a green light;

After the signal is determined to be a green light at the current phase barrier, the signal is inserted before the current phase barrier. The pass-only request prioritizes through the dedicated phase of the vehicle.

The embodiment of the invention provides a signal priority control signal, comprising:

a judging module, configured to determine whether the phase at the current phase barrier is a green light after receiving a signal for requesting the vehicle to pass preferentially;

A phase insertion module is configured to insert a dedicated phase for preferentially only passing the request through the vehicle before the current phase barrier is determined after the phase of the current phase barrier is green.

In the present invention, a dedicated phase is inserted at the phase barrier after detecting that the request is preferentially passed through the vehicle, so that the request is preferentially passed through the intersection of the vehicle to the maximum extent; further, a dedicated phase is inserted at the phase barrier, regardless of the single or multi-ring structure , the influence between the conflict phases is minimized, and the influence of the traffic organization order at the intersection is small, so that the purpose of making the request priority through the vehicle priority crossing the intersection is achieved.

DRAWINGS

1A is a schematic flowchart of a signal priority control method according to an embodiment of the present invention;

1B is a schematic structural diagram of an apparatus for signal priority control according to an embodiment of the present invention;

1C is a flow chart of priority control of a bus signal according to an embodiment of the present invention;

2 is a flow chart of a method for phase insertion according to an embodiment of the present invention;

3 is a flow chart of another phase insertion method according to an embodiment of the present invention;

4A is a schematic diagram of a non-phase-inserted bus signal prioritized in an embodiment of the present invention;

FIG. 4B is a schematic diagram of the phase-interpolation bus signal prioritization in the embodiment of the present invention. FIG.

detailed description

The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

As shown in FIG. 1A, the signal priority control method of the embodiment of the present invention includes:

Step 101: After receiving the signal for requesting the priority transmission of the vehicle, the signal determining whether the phase at the current phase barrier is a green light;

Step 102: After determining that the phase at the current phase barrier is a green light, the signal is inserted before the current phase barrier as a dedicated phase for preferentially only passing the request through the vehicle.

In the release of the entire signal period, some phases are not allowed to be released at the same time, so the ring is cut into thousands of segments, and the barrier for cutting the ring is called a phase barrier. The phase at the phase barrier refers to the adjacent phase before the phase barrier, and the role in the structure of the signal control loop is to phase the conflicting phases of the intersections. These conflicting phases realize the conversion of the right of way at the phase barrier. Inserting the phase at other locations of the structure will cause phase conflicts. Therefore, the insertion phase of the phase barrier is relatively safer with the proper phase clearing time, so the dedicated phase is inserted at the phase barrier, regardless of the single or multi-ring structure. Limiting the impact between conflict phases, The influence of the organization order is small, so that the purpose of making the bus pass through the intersection is achieved, and the efficiency of the bus operation is improved. A ring is a combination of multiple (two or more) phase release sequences. The phases in the same ring are cyclically released according to their order in the ring. Take Figure 4A and Figure 4B as examples, phase 1 ~ 4 It forms a ring, and phase 1 and phase 2 are one half ring, and phase 3 and phase 4 are the other half ring.

The time of the dedicated phase inserted in the embodiment of the present invention is the time required for the vehicle that requests the priority to pass from the place where the request is sent to the parking lane of the dedicated lane, and the specific value needs to be based on the method of detecting the request used by the actual project and the specific device. Performance depends.

Preferably, the release time for the dedicated phase only for the release request to pass through the vehicle is 5s-7s.

Preferably, before step 101, the method further includes:

The detecting means transmits a signal for requesting the priority transmission of the vehicle to the signal when the vehicle that needs to pass preferentially arrives at the intersection.

There are several ways in which the detecting device determines whether the vehicle that needs to pass the priority has reached the intersection:

For example, a detection device, such as a loop detector, a video detector, etc., is disposed at an appropriate position on the inlet lane, and the vehicle that needs to pass through is detected by a conventional detection technique, and the detection signal is transmitted to the signal through a normal line.

For example: When setting a roadside communication device, an in-vehicle device is set on a vehicle that needs to pass preferentially, and when a vehicle that needs priority passes close to the intersection, the in-vehicle device can transmit a vehicle passing signal to the communication device, and then the communication device transmits the signal to the signal device.

Preferably, in step 101, after receiving the signal for requesting the priority transmission of the vehicle, the signal is red lighted in the phase in which the request is preferentially passed, and the previous phase of the phase in which the vehicle is requested to pass the priority is red. After that, it is judged whether the phase at the current phase barrier is a green light.

In the implementation, it may be first determined whether the phase of the request priority passing through the vehicle is a red light, and after the red light is determined, it is determined whether the priority of the previous phase of the phase in which the vehicle is located is a red light;

It is also possible to first determine whether the previous phase of the phase in which the request passes the vehicle is red. If it is determined to be a red light, it is determined whether the priority of the request is through the vehicle.

Preferably, if the request is preferentially passed through the green light of the vehicle, the signal extension request gives priority to the green time of the phase in which the vehicle is located;

Preferably, if the request is prioritized by the green phase of the previous phase of the phase in which the vehicle is located, the signal shortens the green time of the previous phase requesting priority through the phase in which the vehicle is located.

Preferably, after the signal determines whether the phase at the current phase barrier is a green light, if it is determined that the phase at the current phase barrier is red, the signal configuration time is kept unchanged.

Preferably, in step 102, after determining that the phase at the current phase barrier is a green light, the signal determines the current half ring. Whether to insert a dedicated phase for the pass-only request to pass through the vehicle preferentially, and if so, keep the signal configuration time unchanged; otherwise, insert a dedicated phase for preferentially passing only the vehicle through the vehicle before the current phase barrier.

Preferably, in step 102, after determining that the current half-ring is not inserted into the dedicated phase for preferentially only passing the request through the vehicle, determining that the dedicated phase for preferentially passing only the release request to pass through the vehicle is determined within the set time. Whether it is smaller than the first domain value, and if so, insert a dedicated phase for preferentially passing the vehicle only for the release request before the current phase barrier; otherwise, the signal configuration time is kept unchanged.

Preferably, in step 102, after determining that the current half-ring is not inserted into the dedicated phase for the only release request to preferentially pass through the vehicle, determining that the current half-ring insertion is only for the release-only request to preferentially pass the dedicated phase of the vehicle is less than the number of times The two-domain value, if yes, inserts a dedicated phase for preferentially passing the vehicle only for the release request before the current phase barrier; otherwise, the signal configuration time is kept unchanged.

The first domain value is greater than the second domain value.

In implementation, the first domain value, the second domain value, and the set time can be set as needed and empirically. Preferably, the first domain value is 6, the second domain value is 2, and the set time is 3 cycles. (The cycle of the embodiment of the present invention refers to the signal control cycle, specifically, the signal color is displayed in the set phase sequence for one week. Time required. This parameter can be set by the maintenance personnel when configuring the signal control scheme).

Preferably, after step 102, the method further includes:

After the current period ends, the signal deletes the priority request that has been processed (if there is an insertion flag, the insertion flag can be reset to 0).

As shown in FIG. 1B, the apparatus for signal priority control in the embodiment of the present invention includes: a judging module 10 and a phase inserting module 20.

The determining module 10 is configured to determine, after receiving the signal for requesting the priority pass of the vehicle, whether the phase at the current phase barrier is a green light;

The phase insertion module 20 is configured to insert a dedicated phase for preferentially only passing the request through the vehicle before the current phase barrier after determining that the phase at the current phase barrier is a green light.

Preferably, after receiving the signal for requesting the priority transmission of the vehicle, the determining module 10 determines that the phase of the request priority passes the vehicle is red, and determines that the previous phase of the phase in which the request is preferentially passed is red. Determine if the phase at the current phase barrier is green.

Preferably, the semaphore of the embodiment of the present invention may further include: a late module 30.

The late-breaking module 30 is configured to, after the judging module 10 receives the signal for requesting the priority transmission of the vehicle, if the request is preferentially passed through the phase in which the vehicle is located, the green light of the phase in which the request is preferentially passed through the vehicle is extended.

Preferably, the semaphore of the embodiment of the present invention may further include: an early-opening module 40. The early start module 40 is configured to: after the re-judgment module 10 receives the signal for requesting the priority of the vehicle, if the request passes the previous phase of the phase in which the vehicle is located, the green light is shortened, and the request is preferentially passed through the previous phase of the phase of the vehicle. Green light time.

Preferably, the phase insertion module 20 determines that the phase at the current phase barrier is a green light, and determines that the current half-ring is not inserted for the exclusive phase only after the release request is preferentially passed through the vehicle, and inserts one for the current phase barrier only for The release request takes precedence over the dedicated phase of the vehicle.

Preferably, the phase insertion module 20 determines that the phase at the current phase barrier is a green light, and determines that the number of times the dedicated phase for the release-only request to pass through the vehicle is less than the first domain value after the set time is set, after the current phase barrier Insert a dedicated phase for the pass-only request to pass through the vehicle in advance.

Preferably, the phase inserting module 20 inserts the dedicated phase for preferentially only passing the vehicle through the vehicle within the determined set time, the number of times of the dedicated phase is less than the first domain value, and determines that the current half-ring insertion is used exclusively for the priority of the release request through the vehicle. After the number of phases is less than the second domain value, a dedicated phase for preferentially passing only the release request through the vehicle is inserted before the current phase barrier;

The first domain value is greater than the second domain value.

Preferably, the semaphore of the embodiment of the present invention may further include: a deleting module 50.

The deletion module 50 is configured to delete the priority request that has been processed after the current period ends (if there is an insertion flag, the insertion flag can be reset to 0).

The following is an example of requesting a priority for passing a vehicle as a public transportation vehicle. The following is the specific phase of the bus phase, and other vehicles are treated similarly to the bus vehicle, and will not be described here.

The invention will be described in detail below with reference to the accompanying drawings.

Referring to FIG. 1C, a flow chart of the bus signal priority control of the present invention is illustrated. As shown in FIG. 1C, the method includes the following steps: Step S1: Determine whether a bus priority application is triggered. If yes, execute step S2, otherwise continue to detect.

In this step, there are two ways to detect bus requests:

1. Set the bus detector at the appropriate position on the entrance lane of the bus lane, such as the loop detector, video detector, etc., through the conventional detection technology to detect the passage of the bus, and the detection signal is transmitted to the signal through the ordinary line;

2. Set the roadside communication equipment. When the bus is close to the intersection, the vehicle-mounted device can send the vehicle to the communication device and then transmit it to the signal. When the bus arrives at the intersection, the bus detector or the vehicle-mounted device is triggered to communicate with the roadside communication device, and the request signal is sent to the signal, and the signal is received by the signal to trigger the bus priority application. The phase in which the bus request is detected is the bus phase.

In step S2, it is determined whether the current bus phase is a green light, and if yes, step S6 is performed, otherwise step S3 is performed. That is, it is determined that when the bus passes the detection point (the location of the bus detector is set), the bus request is detected. Whether the phase (that is, the bus phase) is a green light.

In step S3, it is determined whether the previous phase of the current bus phase is a green light, and if yes, step S7 is performed, otherwise step S4 is performed.

In step S4, it is determined that the phase at the current phase barrier is a green light, and if yes, step S8 is performed; otherwise, step S5 is performed.

Step S5, the request is saved, and the time is unchanged.

In step S6, the green light of the current bus phase is extended to enable the bus to pass through the intersection smoothly. After the step is completed, step S9 is performed.

Step S7, the previous phase of the current bus phase is a green light, and the current bus phase is a red light. At this time, the process of pre-lighting is entered, so that the green light of the previous phase ends prematurely, and the green light of the current bus phase is advanced. The light is turned on, so that the bus passes through the intersection in advance, and after the step ends, step S9 is performed.

Step S8, after the bus priority application (request) is triggered, if the current bus phase is not a green light, the previous phase is not a green light, that is, the real-time condition does not meet the requirements of the bus phase early start and the phase late break, and the current release phase is in phase. At the exhibition barrier, a bus-only phase that only requests the phase bus is inserted before the phase-shifting barrier. At this time, all the vehicles in the other phases are in the red-light ban state, ensuring that the requested phase bus passes through the intersection smoothly, and its detailed control flow In the follow-up introduction. After the step is completed, step S9 is performed. Taking FIG. 4A and FIG. 4B as an example, if the current bus phase is phase 3 and the current release phase is phase 2, a bus-specific phase is inserted between phase 2 and phase 3; if the current bus phase is phase 2, the current release phase is Phase 4, the bus-specific phase is inserted between phase 4 and the next phase 1 (not shown).

Step S9, deleting the request that has been processed.

It should be noted that the sequence of the step S2 and the subsequent step S6 and the step S3 and the subsequent step S7 may be interchanged; that is, the determination of step S3 may be performed before the step S2 is performed, because the embodiment is Basically the same, no further explanation is given here.

As shown in FIG. 2, in the embodiment of the present invention, a method for performing phase insertion by inserting a current half ring into a dedicated phase for preferentially passing only a release request through a vehicle is smaller than a second domain value as a judgment condition:

Step S801, determining whether the insertion flag or n ₂ of the current half ring is 1 (the current half ring is the half ring where the current phase is located), and if yes, executing step S802, otherwise performing step S803;

The insertion mark 3⁄4 or n ₂ records whether the current half ring has a phase insertion, 3⁄4 is the insertion mark of the first half ring; n ₂ is the insertion mark of the second half ring, and its state is 1 or 0, when it is 1, the description The current half-ring has been inserted into the phase, and the time is kept unchanged, and the request is saved, that is, step S802 is performed; if it is 0, it indicates that the current half-ring has not inserted the phase, and step S803 is performed. The insertion marker records the number of phase insertions of the current half-ring. If =0, the current half-ring is not inserted. If it is equal to 1, it indicates that it has been inserted once. If =n ₂ =l, the current cycle has been inserted twice.

Step S802, the timing is unchanged, and the request is saved;

Step S803, inserting phase j;

Step S804, ni=ni+1 or n ₂ = n ₂ +l;

Step S805, determining whether the period i is finished, if yes, executing step S806; otherwise, performing step S801;

Step S806, resetting the above mark and the mark n ₂ to 0;

In this embodiment, the phase insertion module control flow allows a maximum of two phases to be inserted in one phase period, and the length of the insertion phase is at least the time when the bus travels from the stop line to the internal conflict point of the intersection, that is, it is guaranteed to enter the intersection by inserting the phase. The bus will not be in traffic jam or accident with the conflicting phase vehicle that may be present due to not being emptied in time. The position of the conflict point in the intersection and the number of conflict points are determined by the specific signal control scheme. After repeated experiments, most of the time falls in the interval [5, 7]. For the convenience of configuration, the green duration of phase j is 5 -7s.

The green light time change of the intersection before and after the implementation of the phase-integrated bus signal priority control method is as shown in FIG. 4A and FIG. 4B , wherein FIG. 4A is the original phase diagram, and FIG. 4B is the phase-interpolated bus signal priority phase map, and an intersection. The phase period includes 4 phases, where A is the phase barrier.

Assume that the current release phase is phase 2. On phase 4, the bus detects the bus request after passing the detection point, triggers the bus priority control process, and logically judges that it meets the requirements of the phase insertion module. At this time, a dedicated phase for only releasing the phase 4 bus is inserted at the phase barrier. At this time, all other vehicle phases are in a red state. When the insertion phase ends, the signal control release sequence enters the original scheme, that is, release. Phase 3, Phase 4.

As shown in FIG. 3, in the embodiment of the present invention, the current half-ring is inserted into the dedicated phase for preferentially only passing the request through the vehicle, and the number of times is less than the second domain value and the set time is inserted for the exclusive use of the vehicle only for the release request priority. Whether the number of phases is smaller than the first domain value is combined as a judgment condition, and a phase insertion method is performed:

Step S ⁸ 00, determining whether the number of times of performing phase insertion in the first 3 cycles of execution is n(i - ³ ) + n(i - ² ) + n(il) is greater than 6, and if so, executing a normal phase insertion module (executing Step S801 - step S806), if not, allowing the bus of the bus request phase to perform two phase insertions, and giving a higher priority right, that is, performing step S807; step S807, determining the insertion mark of the current half ring Whether _u , n _i2 is equal to 2, and if so, step S808 is performed; otherwise, step S809 is performed;

Step S808, the time is unchanged, and the request is saved;

Step S809, inserting phase j;

Step S810, n _u = nii+1 or n _i2 = n _i2 + l; After each insertion of the phase, n _u = nii+1 or n _i2 = n _i2 +l is recorded.

In step S811, it is judged whether or not the current cycle is ended. If yes, step S812 is performed, otherwise, the process returns to step S807, and the insertion flag is continuously determined.

Step S812, calculating the number of phase insertions performed by the current period n(i)= _ni i+ n _i2

In step S813, _{n il} = n _l2 =0 is reset and ends.

The main parameters in the above process are explained:

n(i) The number of phase insertions performed by the i-th cycle.

ϋ ϋ , n _i2 —— the phase insertion mark of the first half ring and the second half ring of the i-th cycle.

This phase insertion mode requires that a phase of the intersection be given a higher priority than the other phases, and only one phase can be defined. The time to insert the phase is still 5-7s. The advantage of this embodiment is that the coverage of the bus line in a certain direction of the intersection is significantly higher than that in other directions, and this is the case at some intersections in the city. The disadvantage is that the scope of application is narrower than that of the ordinary phase insertion mode, and is more disturbed by social vehicles.

In the present invention, since the traffic priority method for starting the bus priority is detected after the bus is detected, the phase barrier (the barrier is the phase barrier, and during the release of the entire signal period, some phases are not allowed to be released at the same time, so The ring is cut into thousands of segments, and the barrier used to cut the ring is called the barrier. The phase at the barrier refers to the adjacent phase before the barrier.) Insert the bus phase so that it cannot be turned on and off late by the green light. Priority passenger cars are allowed to pass through the intersection as early as possible.

The role of barrier in the structure of the signal control loop is used to divide the conflicting phases of the intersections in time. These conflicting phases realize the conversion of the right of way at the barrier. Any phase change at other positions of the ring structure will cause a phase conflict. Therefore, With the proper phase clearing time, the insertion phase of the barrier is relatively safe, so the bus phase is inserted at the barrier, regardless of the single or multi-ring structure, minimizing the impact between the collision phases, the intersection traffic The influence of organizational order is small, so that the purpose of making buses pass through the intersections is achieved, and the efficiency of public transportation operations is improved.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention can be embodied in the form of a computer program product embodied on one or more computer-usable storage interfaces (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computers are available Program instructions to a processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that instructions executed by a processor of a computer or other programmable data processing device are generated for implementation in a process A device or a plurality of processes and/or block diagrams of a device in a block or a plurality of blocks.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Although the preferred embodiment of the invention has been described, it will be apparent to those of ordinary skill in the art that <RTIgt; Therefore, the appended claims are intended to be construed as including the preferred embodiments and the modifications

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

Rights request

A signal priority control method, characterized in that the method comprises:

After the signal determines that the phase at the current phase barrier is green, a special phase for preferentially passing the vehicle through the release request is inserted in front of the current phase barrier.

2. The method according to claim 1, wherein the signal machine further comprises: before receiving the signal for requesting the vehicle to pass preferentially:

3. The method according to claim 1, wherein the signal machine, after receiving the signal for requesting the priority transmission of the vehicle, determining whether the phase at the current phase barrier is a green light further comprises:

The signal determines that the request passes the phase in which the vehicle is located to a red light, and determines that the previous phase of the phase in which the request is preferentially passed through the vehicle is red.

The method according to claim 3, wherein the signal, after receiving the signal for requesting the priority of the vehicle, further comprises:

If the request priority passes through the green light of the vehicle, the signal extension request gives priority to the green time of the phase at which the vehicle is located;

If the request passes the green light from the previous phase of the phase in which the vehicle is located, the signal shortens the green time of the previous phase requesting priority through the phase in which the vehicle is located.

The method according to any one of claims 1 to 4, wherein the signalling device determines whether the phase at the current phase barrier is a green light or not:

The signal keeps the signal configuration time unchanged after determining that the phase at the current phase barrier is red.

6. The method according to claim 1, wherein the signal machine inserts a dedicated phase for preferentially only passing the request through the vehicle before determining that the phase at the current phase barrier is a green light. Previously included:

The signal determines that the current half-ring is not inserted for a dedicated phase that only passes the priority request through the vehicle.

7. The method according to claim 6, wherein the signal machine determines that the current half-ring is not inserted before the dedicated phase of the vehicle is preferentially passed only before the dedicated phase of the vehicle is passed after determining that the phase at the current phase barrier is green. Includes:

The signal device determines that the number of times for inserting the dedicated phase for preferentially passing only the vehicle through the release request is small within the set time In the first domain value.

The method according to claim 7, wherein the signal is determined to be in the determined set time, and the number of times the dedicated phase for preferentially passing only the vehicle is preferentially passed through the vehicle is less than the first domain value, and the current half ring is determined. Not included before the dedicated phase for the pass-only request to pass the vehicle preferentially includes:

The signal determines that the number of times the current half-ring insertion is used to preferentially pass only the dedicated phase of the vehicle through the release request is less than the second domain value;

The first domain value is greater than the second domain value.

The method according to any one of claims 6 to 8, wherein the method further comprises:

The signal deletes the priority request that has been processed after the current period ends.

10. A signal priority controlled signal machine, characterized in that the signal machine comprises:

The semaphore according to claim 10, wherein the determining module is configured to: after receiving a signal for requesting priority transmission of the vehicle, determining that the phase of the request priority passing through the vehicle is a red light, and After determining that the request is preferentially passed through the previous phase of the phase in which the vehicle is located, it is determined whether the phase at the current phase barrier is a green light.

The semaphore according to claim 11, wherein the semaphore further comprises:

a late-breaking module, configured to: after the determining module receives a signal for requesting priority transmission of the vehicle, if the phase of the vehicle in which the vehicle is preferentially passed is requested to be a green light, the green time of the phase in which the request is preferentially passed through the vehicle is extended;

The signal machine further includes:

The early start module is configured to: after the determining module receives the signal for requesting the priority of the vehicle to pass, if the request passes the previous phase of the phase in which the vehicle is located to be a green light, shortening the request to preferentially pass the previous phase of the phase of the vehicle Green light time.

The semaphore according to claim 10, wherein the phase insertion module is specifically configured to: determine that the phase at the current phase barrier is a green light, and determine that the current half-ring is not inserted for preferential use only for the release request After the dedicated phase of the vehicle, a dedicated phase for the pass-only request to pass through the vehicle is inserted in front of the current phase barrier.

The semaphore according to claim 13, wherein the phase insertion module is specifically configured to: determine that the phase at the current phase barrier is a green light, and determine to insert a request for priority only in the set time After the number of times the dedicated phase of the vehicle has passed is less than the first domain value, a dedicated phase for preferentially passing only the pass-through request through the vehicle is inserted in front of the current phase barrier.

The semaphore according to claim 14, wherein the phase insertion module is specifically configured to: insert a dedicated phase for preferentially passing only the release request through the vehicle within the determined set time, less than the first domain value And determining that the current half-ring insertion is for the release-only request to preferentially pass the dedicated phase of the vehicle less than the second domain value, and inserting a dedicated phase for preferentially only passing the request through the vehicle before the current phase barrier;

The first domain value is greater than the second domain value.

The method according to any one of claims 13 to 15, wherein the signalling machine further comprises: a deleting module, configured to delete the priority request that has been processed after the current period ends.