CN110276967A - A kind of special vehicle intersection signal priority control device and its application method - Google Patents
A kind of special vehicle intersection signal priority control device and its application method Download PDFInfo
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- CN110276967A CN110276967A CN201910531502.XA CN201910531502A CN110276967A CN 110276967 A CN110276967 A CN 110276967A CN 201910531502 A CN201910531502 A CN 201910531502A CN 110276967 A CN110276967 A CN 110276967A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/087—Override of traffic control, e.g. by signal transmitted by an emergency vehicle
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Abstract
The invention discloses a kind of special vehicle intersection signal priority control device and its application methods, the device includes networking combined control equipment, video detecting device, vehicle carried pick device, special vehicle database and intersection task status database, and networking combined control equipment issues adjustment instruction to semaphore for command centre；Video detecting device is used to detect, identify the license plate number of special vehicle；Vehicle carried pick device is for obtaining vehicle operating information；Special vehicle database is used to store the license plate number of special vehicle；Intersection task status database is used to store the status information that semaphore executes signal timing plan.The present invention is under the premise of reducing influence current on intersection public vehicles to the greatest extent, it is pre-adjusted by the signal timing dial to intersection, to reduce intersection because red light is delay of going on a journey caused by special vehicle, improve the without hindrance probability for passing through intersection of special vehicle, reduce special vehicle because execute task not in time due to caused by hidden danger.
Description
Technical field
The present invention relates to technical field of traffic signal control, and in particular to a kind of special vehicle intersection signal priority acccess control
Device and its application method.
Background technique
According to China " law on road traffic safety " the 53rd article of regulation, under the premise of ensuring safety, special vehicle executes tight
Anxious task when enjoy lane priority right-of-way, but in real life the right-of-way of special vehicle repeatly fall into predicament, lead
There is very big uncertainty in the timeliness for having caused special vehicle to carry out an urgent task, be unable to get and be effectively ensured, therefore deposit
In great hidden danger.
Summary of the invention
Goal of the invention: in order to overcome the right-of-way of special vehicle in actual life existing in the prior art to be difficult to just
Often the problem of fulfiling, provides a kind of special vehicle intersection signal priority control device and its application method, by identifying
After being carrying out the special vehicle of task, signal priority control is carried out to downstream intersection, it is without hindrance to improve special vehicle with this
Hinder the probability for passing through intersection.
Technical solution: in order to solve the above technical problems, the present invention provides a kind of special vehicle intersection signal priority acccess control
Device, including networking combined control equipment, video detecting device, vehicle carried pick device, special vehicle database and intersection task shape
State database, the networking combined control equipment issue adjustment instruction to semaphore for command centre, and the video detecting device is used
In detection, identifies the license plate number of each exit ramp inlet vehicle in intersection and be sent to command centre, the vehicle positioning
Device is used to store and inquire the license plate number of special vehicle for obtaining vehicle operating information, the special vehicle database,
The intersection task status database is used to store the status information that each intersection signal machine executes signal timing plan.
Further, the networking combined control equipment is installed at intersection signal machine, and the video detecting device is installed on
At each exit ramp in intersection, the vehicle carried pick device is installed on special vehicle, the special vehicle database and intersection
Task status database is established at command centre.
Further, the vehicle operating information includes the GPS satellite location information of vehicle, engine start and stop information, holds
Diligent task status information.
Special vehicle includes ambulance, fire fighting truck and breakdown lorry etc..
A kind of application method of special vehicle intersection signal priority control device, includes the following steps:
S1: it when video detecting device has detected vehicle by intersection exit road inlet, acquires, identify the vehicle
License plate number, and by license plate number and intersection exit road number be sent to command centre；
S2: its license plate number is placed in special vehicle database and retrieves by command centre, if retrieving the vehicle is
When special vehicle, command centre reads special vehicle operation information by mobile network, the vehicle carried pick device of special vehicle；
Otherwise, S1 is gone to；
S3: if the task status information on duty of the special vehicle shows that it is carrying out task, command centre is according to this
The GPS satellite location information of special vehicle calculates T at the time of reaching downstream intersection D；If the task shape on duty of the special vehicle
State information shows that it is not carried out task, then goes to S1；
S4: command centre reads intersection D semaphore and executes signal timing plan by intersection task status database
Status information, judge whether intersection D semaphore is executing abnormal signal control task at the T moment: if it is not, then passing through connection
Net combined control equipment is assigned to intersection D semaphore to be started to execute abnormal signal control task at T-N (N the is generally 10s) moment
Order, and increase intersection D semaphore in the task status database of intersection and start to execute abnormal signal control at the T-N moment
Mission bit stream processed；Otherwise, S1 is gone to；
S5: command centre will be at interval of time (generally 5 seconds), and being read by the vehicle carried pick device of the special vehicle should
Special vehicle operation information；
S6: when the engine start and stop information of the special vehicle is shown as engine stop-state or task status on duty letter
Breath is shown as being not carried out task status or when other intersection exit roads inlet detects the special vehicle, and command centre is logical
It crosses networking combined control equipment and is assigned to intersection D semaphore and cancel abnormal signal control task order, and appoint in intersection
The information that D semaphore in intersection executes abnormal signal control task is deleted in business slip condition database.
Further, the method for T at the time of reaching downstream intersection D is calculated in the step S3 are as follows:
A) command centre obtains the GPS satellite location information of the special vehicle, in current time T0The vehicle of special vehicle
Fast V and location information X；
B) according to the location information X of special vehicle location information X and downstream intersection D stop lineD, calculate special vehicle
The distance between downstream intersection D stop line L；
C special vehicle T, i.e. T=T at the time of keeping current vehicle speed V to drive to downstream intersection D stop line) are calculated0+
L/V。
Further, the content of abnormal signal control task is executed in the step S4 are as follows:
The entrance driveway signal lamp that special vehicle sails for the intersection direction D at control intersection D is set as green light, other are believed
Signal lamp is disposed as red light.
The utility model has the advantages that the present invention is under the premise of reducing influence current on intersection public vehicles to the greatest extent, by intersection
Mouthful signal timing dial pre-adjusted, to reduce intersection because red light is delay of going on a journey caused by special vehicle, substantially
Improve the without hindrance probability for passing through intersection of special vehicle, reduce special vehicle because execution task not in time due to cause
Hidden danger.
Detailed description of the invention
Fig. 1 is flow chart of the invention；
Fig. 2 is virtual rectangle detection coil area schematic of the invention；
Fig. 3 is that special vehicle and downstream intersection of the invention stop wire spacing schematic diagram.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated.
Control device of the invention is applied on continuous two signalized intersections sections shown in Fig. 3 in the present embodiment,
Control device is by networking combined control equipment, video detecting device, vehicle carried pick device, special vehicle database and intersection task shape
State database composition.
As shown in Fig. 2, networking combined control equipment (not showing on figure) is installed at intersection signal machine, video detecting device peace
Loaded on the intersection inlet each exit ramp N1-N7, vehicle carried pick device is installed on special vehicle, special vehicle database and friendship
Prong task status database is established at command centre.
As shown in Figure 1, the application method of control device provided by the invention, includes the following steps:
S1: as shown in Fig. 2, when video detecting device has detected vehicle by the upstream intersection exit road inlet N (square
Shape virtual detection coil) when, the license plate number of the vehicle is acquired, identifies, and license plate number and intersection exit road number N are sent out
It is sent to command centre；
S2: its license plate number is placed in special vehicle database and retrieves by command centre, if retrieving the vehicle is
When special vehicle, command centre reads special vehicle operation information by mobile network, the vehicle carried pick device of special vehicle；
Otherwise, S1 is gone to；
S3: if the task status information on duty of the special vehicle shows that it is carrying out task, command centre is according to this
The GPS satellite location information of special vehicle calculates T at the time of reaching downstream intersection D；If the task shape on duty of the special vehicle
State information shows that it is not carried out task, then goes to S1；
S4: command centre reads downstream intersection D semaphore and executes signal control by intersection task status database
The status information of scheme, judges whether intersection D semaphore is executing abnormal signal control task at the T moment: if it is not, then leading to
It crosses networking combined control equipment and is assigned to intersection D semaphore and start to execute abnormal signal control at T-10s (10s before the T moment) moment
Task order processed, and increase downstream intersection D semaphore in the task status database of intersection and start to execute at the T-10s moment
Abnormal signal control task information；Otherwise, S1 is gone to；
S5: command centre will read special vehicle operation by the vehicle carried pick device of the special vehicle every 5 seconds
Information；
S6: when the engine start and stop information of the special vehicle is shown as engine stop-state or task status on duty letter
Breath is shown as being not carried out task status or when the inlet downstream intersection exit ramp N2 or N3 detects the special vehicle, commander
Center is assigned to intersection D semaphore by combined control equipment of networking and cancels abnormal signal control task order, and is being handed over
The information that D semaphore in intersection executes abnormal signal control task is deleted in prong task status database.
The method of T at the time of reaching downstream intersection D is calculated in step S3 are as follows:
A) command centre obtains the GPS satellite location information of the special vehicle, in current time T0The vehicle of special vehicle
Fast V and location information X；
B) as shown in figure 3, according to the location information X of special vehicle location information X and downstream intersection D stop lineD, calculate
The distance between special vehicle and downstream intersection D stop line L out；
C special vehicle T, i.e. T=T at the time of keeping current vehicle speed V to drive to downstream intersection D stop line) are calculated0+
L/V。
The content of abnormal signal control task is executed in step S4 are as follows:
The entrance driveway signal lamp that special vehicle sails for the intersection direction D at control intersection D is set as green light, other are believed
Signal lamp is disposed as red light.
Claims (7)
1. a kind of special vehicle intersection signal priority control device, it is characterised in that: including the combined control equipment, video detection of networking
Device, vehicle carried pick device, special vehicle database and intersection task status database, the networking combined control equipment is for referring to
It waves center and issues adjustment instruction to semaphore, the video detecting device is for detecting, identifying each exit ramp inlet in intersection
The license plate number of vehicle and it is sent to command centre, the vehicle carried pick device is for obtaining vehicle operating information, the spy
Kind vehicle database is used to store and inquire the license plate number of special vehicle, and the intersection task status database is for storing
Each intersection signal machine executes the status information of signal timing plan.
2. a kind of special vehicle intersection signal priority control device according to claim 1, it is characterised in that: described
Net combined control equipment is installed at intersection signal machine, and the video detecting device is arranged in each exit ramp inlet in intersection, institute
Vehicle carried pick device is stated to be mounted on special vehicle.
3. a kind of special vehicle intersection signal priority control device according to claim 1, it is characterised in that: the vehicle
Operation information includes the GPS satellite location information of vehicle, engine start and stop information, task status information on duty.
4. a kind of application method of special vehicle intersection signal priority control device, feature according to claim 1
It is: includes the following steps:
S1: when video detecting device has detected vehicle by intersection exit road inlet, acquire, identify the vehicle of the vehicle
Trade mark code, and command centre is sent by license plate number and intersection exit road number；
S2: its license plate number is placed in special vehicle database and retrieves by command centre, if it is extraordinary for retrieving the vehicle
When vehicle, command centre reads special vehicle operation information by mobile network, the vehicle carried pick device of special vehicle；Otherwise,
Go to S1；
S3: if the task status information on duty of the special vehicle shows that it is carrying out task, command centre is according to the special type
The GPS satellite location information of vehicle calculates T at the time of it reaches downstream intersection D；If the task status on duty of the special vehicle
Information shows that it is not carried out task, then goes to S1；
S4: command centre reads the shape that D semaphore in intersection executes signal timing plan by intersection task status database
State information, judges whether intersection D semaphore is executing abnormal signal control task at the T moment: if it is not, then by networking connection
Control device is assigned to intersection D semaphore to be started to execute abnormal signal control task order at the T-N moment, and was appointed in intersection
Increase intersection D semaphore in business slip condition database to start to execute abnormal signal control task information at the T-N moment；Otherwise,
Go to S1；
S5: command centre will read special vehicle operation letter by the vehicle carried pick device of the special vehicle at interval of the time
Breath；
S6: when the special vehicle is departing from priority status, command centre is by networking combined control equipment under the D semaphore of intersection
Up to cancelling abnormal signal control task order, and D semaphore in intersection is deleted in the task status database of intersection
Execute the information of abnormal signal control task.
5. according to right want 4 described in a kind of application method of special vehicle intersection signal priority control device, feature exists
In the method for T at the time of calculating special vehicle arrival downstream intersection D in the step S3 are as follows:
A) command centre obtains the GPS satellite location information of special vehicle, respectively in current time T0The vehicle velocity V of special vehicle
With location information X；
B) according to the location information X of special vehicle location information X and downstream intersection D stop lineD, special vehicle is calculated under
Swim the distance between intersection D stop line L；
C special vehicle T, i.e. T=T at the time of keeping current vehicle speed V to drive to downstream intersection D stop line) are calculated0+L/V。
6. according to right want 4 described in a kind of application method of special vehicle intersection signal priority control device, feature exists
In: the step S4 executes the content of abnormal signal control task are as follows:
The entrance driveway signal lamp that special vehicle sails for the intersection direction D at control intersection D is set as green light, by other signal lamps
It is disposed as red light.
7. according to right want 4 described in a kind of application method of special vehicle intersection signal priority control device, feature exists
In: departing from priority status in the step S6 specifically: the engine start and stop information of the special vehicle is shown as engine and stops
Only state or task status information on duty are shown as being not carried out task status or other intersection exit roads inlet detects
When the special vehicle.
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| CN201910531502.XA CN110276967A (en) | 2019-06-19 | 2019-06-19 | A kind of special vehicle intersection signal priority control device and its application method |
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| CN111477022A (en) * | 2020-04-07 | 2020-07-31 | 齐齐哈尔大学 | Embedded special vehicle priority running system based on dynamic traffic information network |
| CN111627233A (en) * | 2020-06-09 | 2020-09-04 | 上海商汤智能科技有限公司 | Method and device for coordinating passing route for vehicle |
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