CN102402863B - Signal priority control system and method for ensuring bus circulation - Google Patents
Signal priority control system and method for ensuring bus circulation Download PDFInfo
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- CN102402863B CN102402863B CN 201110337039 CN201110337039A CN102402863B CN 102402863 B CN102402863 B CN 102402863B CN 201110337039 CN201110337039 CN 201110337039 CN 201110337039 A CN201110337039 A CN 201110337039A CN 102402863 B CN102402863 B CN 102402863B
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Abstract
The invention relates to a signal priority control system and a corresponding method for ensuring bus circulation. A bus is judged whether to be close to road junction or not by comparing bus longitude and latitude coordinate information with central longitude and latitude coordinate information of each road junction; the bus is judged whether to arrive at monitoring point or not by comparing the bus longitude and latitude coordinate information with longitude and latitude coordinate information of the monitoring point around the road junction; and when the bus reaches the monitoring point, a command control center controls road junction signal lamps to provide a green lamp signal for the bus, and meanwhile, a vehicle-mounted video display module on the bus and an information display board disposed in downstream direction of vehicle driving at the road junction can prompt bus drivers and other drivers on whether buses obtain priority signals or not and how the signal lamps will change subsequently, and the vehicle drivers in two directions instantly make responses according to the information prompted by the information display board, and decide whether to drive on to pass through the road junction or slow down to stop and wait.
Description
Technical field
The present invention relates to intelligent transportation control field, be specifically related to a kind of signal priority control system and method that guarantees that public transport is unimpeded.
Background technology
City bus is the important component part of green traffic, low-carbon (LC) life, and along with socioeconomic fast development, urban population is more and more intensive, and the problem of blocking up of urban road becomes increasingly conspicuous, and this also becomes the key factor that influences people's living standard.In order to alleviate traffic congestion, satisfy people's trip requirements, bus is implemented signal priority control, at home and abroad generally used.
Existing Chinese patent literature CN 101256717B discloses a kind of quick public transport location based on GPS and traffic signal control method and device, this device is by being installed in the car-mounted device that modules such as GPS on the quick public transport and MCU, RF wireless transmission are formed, and the vehicle location information of the bus rapid transit that obtains in real time, is automatically sent data to ground reception and treating apparatus and carries out the processing that wireless data avoids conflict by the RF wireless transport module of RF wireless transport module by car-mounted device.The ground receiving and processing device is handled the quick public transport of acquisition and the related data information of these 2 positions of traffic signal controlling machine, and calculates relative position coordinates, distance and the vehicle heading etc. of quick public transport and ground receiving and processing device.Then these information in real time, are automatically sent to traffic signal controlling machine, undertaken in time, switch effectively by the traffic lights of traffic signal controlling machine to the crossing again, be preferably quick public transport and give way, thereby guarantee that quick public transport is preferential, current fast.Adopt above-mentioned technology, have following problem:
When the driver of BRT vehicle drives to the crossing, can not judge that ground receives and treating apparatus whether treated the override requests of oneself, if current demand signal is green light signals, and will become red light, the driver does not know whether traffic signal controlling machine can keep green light for oneself at once; If current is red light phase, the driver can not determine traffic signal controlling machine for allow oneself preferentially by and rapidly signal lamp is set to green light.And in actual conditions, might all there be the BRT vehicle to pass through by both direction, at this moment traffic signal controlling machine can only provide priority signal for the BRT vehicle on one of them direction, and this moment, the driver of the BRT vehicle of both direction can not determine all whether oneself has obtained priority signal, can't make rational plan to next step action of oneself.Same, non-BRT vehicle driver, can not know whether traffic signal controlling machine provides priority signal for the BRT vehicle, namely when being green light on the travel direction, do not know therefore whether signal lamp can not determine that oneself needing deceleration to wait for still accelerates to pass through because of becoming amber light in advance for the BRT vehicle on the other direction provides priority signal; Be red light and when at once becoming green light when non-BRT vehicle driver observes the front signal lamp, the driver can not determine whether traffic signaling equipment can be because of the red time that provides priority signal to prolong the current driving direction for the BRT vehicle on the other direction, and whether therefore can not determine oneself needs to stop is waited for that still preparation starts vehicle.
Existing Chinese patent literature CN 101334934A discloses a kind of vehicle mounted traffic displaying apparatus, this device is for being arranged on the traffic signals indicating device of the indication of one in car junction ahead signal, described indicating device comprises, a display panel, the signal receiving device that is connected with display panel.The loudspeaker that also have a sounding on the described display panel.During use, this device is accepted the data of the traffic lights of junction ahead, and shows at display panel, if junction ahead is red light, shows on the display panel that then junction ahead is red light, and shows counting down of red light, if instead be that green light also is like this.Adopt the vehicle mounted traffic displaying apparatus in the technique scheme, though can show the state of junction ahead signal lamp, but for the driver, when vehicle arrives the crossing, the demonstration of no matter seeing the signal lamp of junction ahead sees that still the signal lamp state in the own car shows, still can not and determine whether oneself should accelerate to pass through the crossing excess time according to the color of current demand signal lamp under following two kinds of situations:
1. the current red light that is shown as of belisha beacon, but the countdown demonstration is about to become green light, driver's person of sailing can not determine whether traffic signaling equipment can be because of prolonging the red time of current driving direction for the BRT vehicle on the other direction provides priority signal, can not determine namely whether oneself needs Reduced Speed Now, stop when arriving the crossing then and wait for;
2. the current green light that is shown as of belisha beacon, but the countdown demonstration is about to become amber light, the driver does not know whether signal lamp can be because of becoming amber light in advance for the BRT vehicle on the other direction provides priority signal, be that the driver can not judge oneself whether can accelerate rapidly by the crossing, to avoid unnecessary wait.
Summary of the invention
Technical matters to be solved by this invention is can not know whether oneself has obtained priority signal when bus driver drives to the place, crossing in the prior art, and non-bus vehicle driver can not know whether signal lamp becomes lamp for bus provides priority signal not according to the normal variation rule, thereby bus driver and non-bus driver all can not be taked corresponding measure according to current demand signal lamp state, are in comparatively passive state.
For solving the problems of the technologies described above, the invention provides a kind of signal priority control system that guarantees that public transport is unimpeded, comprising: board units, signal lamp control module, priority signal processing unit and information display board;
Described board units is arranged on the bus, comprising:
Vehicle location detection module: be used for determining bus latitude and longitude coordinates information in real time and this latitude and longitude coordinates information being sent to the command and control center;
Vehicular video display module: be used for prompting bus driver junction ahead signal lamp state;
Described signal lamp control module is arranged at inside, command and control center, receives described bus latitude and longitude coordinates information in real time, judges position of bus and travel direction, the variation of control belisha beacon;
Described information display board is arranged at the downstream direction that place, crossing vehicle travels, and each information display board has well-determined id information;
Described signal lamp control module comprises:
Data memory module: be used for each crossing center longitude coordinate information of storage, be arranged on crossing monitoring point latitude and longitude coordinates information on every side and the id information that is arranged at the information display board at place, crossing;
Data reception module: receive described bus latitude and longitude coordinates information in real time;
Data comparing module: the crossing center longitude coordinate information of storing in described bus latitude and longitude coordinates information and the described data memory module is compared, judge that whether vehicle is through the crossing;
The instruction output module: according to the comparison result of described data comparing module, output steering order control signal lamp changes, and when bus obtains priority signal, the information of priority signal and signal lamp variable condition is sent to described priority signal processing unit;
Described priority signal processing unit is arranged at inside, command and control center, it comprises video processing module, be used for being sent to described Vehicular video display module after the information processing with priority signal and signal lamp variable condition, whether described Vehicular video display module prompting bus driver obtains next step situation of change of priority signal and signal lamp;
Be provided with information display board control module in the described priority signal processing unit, whether described information display board control module is according to having bus to obtain the priority pass signal, and the described information display board of control different directions shows below information:
The information display board prompting and command control center that arranges on the prior-release direction is for the bus of this direction running provides priority signal, and vehicle can normally pass through the crossing;
The information display board prompting and command control center that arranges on the non-prior-release direction needs ramp to stop to wait for for the other direction bus provides priority signal.
Described vehicle location detection module comprises the GPS locating module: the latitude and longitude coordinates information that is used for determining in real time vehicle location; Data transmission module: be used for the latitude and longitude coordinates information of vehicle is sent to described data reception module.
Along vehicle heading a plurality of monitoring points are set around the crossing, the distance that to be vehicle travel a second with the speed limit in this highway section of the distance between adjacent two described monitoring points.
Center, described crossing and monitoring point are determined on the electronic chart that has latitude and longitude coordinates information, provide described crossing center longitude coordinate information and monitoring point latitude and longitude coordinates information by the described electronic chart that has latitude and longitude coordinates information, and be stored in the described data memory module with the form of tables of data.
Described information display board is formed by being arranged on travel four LED electronic displays of downstream direction of crossing place vehicle;
Described information display board control module output control signal " 1 " is during to described LED electronic display, the information of described LED electronic display screen displays prior-release signal;
Described information display board control module output control signal " 0 " is during to described LED electronic display, and described LED electronic display screen displays the other side vehicle obtains the information of prior-release signal.
Described Vehicular video display module also comprises a sounding submodule, described priority signal processing unit also comprises audio processing modules, and described audio processing modules is the sound signal that described sounding submodule can be play with junction ahead signal lamp light color status information and information processing excess time.
The present invention also provides a kind of signal priority control method that guarantees that public transport is unimpeded, may further comprise the steps:
A, the utilization of signal lamp control module have the electronic chart of latitude and longitude coordinates information, obtain the latitude and longitude coordinates information of each center, crossing and position, monitoring point, are stored in the data memory module with the form of tables of data; The downstream direction that travels at each place, crossing vehicle is provided with the information display board with unique definite id information, also stores the id information of the information display board that is arranged at the place, crossing in the described tables of data;
B, vehicle location detection module obtain bus latitude and longitude coordinates information in real time, are sent to the data reception module of signal lamp control module;
C, data comparing module are compared the crossing center longitude coordinate information in bus latitude and longitude coordinates information in the described data reception module and the described data memory module in real time, judge that whether bus is near the crossing;
D, determine that bus is near the crossing after, the data comparing module is compared the latitude and longitude coordinates information of described bus latitude and longitude coordinates information and described monitoring point in real time, when vehicle arrives the monitoring point, the data comparing module is to instruction output module sending controling instruction, and instruction output module control belisha beacon provides the green light all-clear for bus and the public traffic in priority position is set and is " 1 "; Described instruction output module is sent to the priority signal processing unit with the information of priority signal and signal lamp variable condition simultaneously;
Be sent to described Vehicular video display module after the information processing of video processing module with priority signal and signal lamp variable condition that arranges in the e, described priority signal processing unit, whether the prompting bus driver obtains next step situation of change of priority signal and signal lamp;
Described information display board control module control is arranged on the information of the information display board prompting acquisition prior-release signal of prior-release direction;
The information display board that described information display board control is arranged on non-prior-release direction shows the information that priority signal is provided for the other side's bus.
Further comprising the steps of:
F, described data comparing module continue the real-time bus latitude and longitude coordinates information that receives of described data reception module and the crossing center longitude coordinate information in the described data memory module are compared in real time, when vehicle arrives the center, crossing, the public traffic in priority position is set is " 0 ".
In the described steps d, a plurality of monitoring points are set at the crossing, the distance between adjacent two described monitoring points is the distance that vehicle travels a second with this highway section speed limit;
Travel speed according to bus, when bus travels when very fast, provide public transport priority signal for bus when setting bus and arriving apart from monitoring point far away, crossing, when bus travels when slow, provide public transport priority signal for bus when setting bus and arriving apart from nearer monitoring point, crossing.
Among the described step b, utilize the GPS locating module with communication function to obtain bus latitude and longitude coordinates information in real time and described bus latitude and longitude coordinates information is sent to described data reception module.
When bus and certain distance between a bit less than vehicle with this highway section speed limit travel one second distance a half, think that bus arrives this point.
Among the described step e, described information display board is formed by being arranged on travel four LED electronic displays of downstream direction of crossing place vehicle;
Described information display board control module sends " 1 " signal to the LED electronic display that is arranged on the prior-release direction, sends " 0 " signal to the LED electronic display that is arranged on the non-prior-release direction.
Among the described step e, described Vehicular video display module also comprises a sounding submodule, described priority signal processing unit also comprises audio processing modules, and described audio processing modules is the sound signal that described sounding submodule can be play with information, junction ahead signal lamp light color status information and information processing excess time whether bus obtains priority signal.
There is following beneficial effect in the present invention:
1, the board units among the present invention is except can being sent to bus latitude and longitude coordinates information the command and control center, also have the Vehicular video display module, when bus arrives the monitoring point, when providing priority signal for bus, the command and control center can obtain the priority pass signal by this Vehicular video display module prompting bus driver immediately, make the driver can make a response immediately, continue to travel by the crossing or should ramp to stop wait for; Simultaneously, whether the information display board that is arranged at the downstream direction that crossing place vehicle travels among the present invention can point out two drivers on the travel direction to have public transit vehicle to obtain priority signal, how signal lamp next step will change, and the vehicle driver on the both direction can make a response immediately according to the information of information display board prompting, continues to travel by the crossing or should wait for by ramp to stop.
2, adopt the method for comparing bus latitude and longitude coordinates information and monitoring point latitude and longitude coordinates information in real time among the present invention, when bus can in time obtain the prior-release signal during near the crossing, and after bus obtains the prior-release signal, system continues bus latitude and longitude coordinates information and crossing center longitude coordinate information are compared, when bus arrives the center, crossing, system can in time obtain the bus signal by the crossing, just can make next step signal lamp plan for adjustment according to the traffic information at current crossing rapidly, prevent from giving normal traffic and affecting greatly owing to public traffic in priority.
Description of drawings
Fig. 1 is crossing of the present invention center electron map label method;
Fig. 2 is that system of the present invention constitutes;
Fig. 3 is system program process flow diagram of the present invention;
Embodiment
The present invention will be described in detail below in conjunction with drawings and Examples.
Embodiment 1
Present embodiment provides a kind of signal priority control system that guarantees that public transport is unimpeded, comprising: board units, signal lamp control module, priority signal processing unit and information display board;
Described board units is arranged on the bus, comprising:
Vehicle location detection module: be used for determining bus latitude and longitude coordinates information in real time and this latitude and longitude coordinates information being sent to the command and control center; In the present embodiment,
Described vehicle location detection module comprises the GPS locating module: the latitude and longitude coordinates information that is used for determining in real time vehicle location; Data transmission module: be used for the latitude and longitude coordinates information of vehicle is sent to described data reception module.
Vehicular video display module: be used for prompting bus driver junction ahead signal lamp state;
Described signal lamp control module is arranged at inside, command and control center, receives described bus latitude and longitude coordinates information in real time, judges position of bus and travel direction, the variation of control belisha beacon;
Described information display board is arranged at the downstream direction that place, crossing vehicle travels, and each information display board has well-determined id information;
As shown in Figure 1, described information display board is arranged at the downstream direction that place, crossing vehicle travels, and each information display board has well-determined id information; Along vehicle heading a plurality of monitoring points are set around the crossing, the distance that to be vehicle travel a second with the speed limit in this highway section of the distance between adjacent two described monitoring points;
Described signal lamp control module comprises as shown in Figure 2:
Data memory module: be used for each crossing center longitude coordinate information of storage, be arranged on crossing monitoring point latitude and longitude coordinates information on every side and the id information that is arranged at the information display board at place, crossing; Center, described crossing and monitoring point are determined on the electronic chart that has latitude and longitude coordinates information, provide described crossing center longitude coordinate information and monitoring point latitude and longitude coordinates information by the described electronic chart that has latitude and longitude coordinates information, and be stored in the described data memory module with the form of tables of data.
Data reception module: receive described bus latitude and longitude coordinates information in real time;
Data comparing module: the crossing center longitude coordinate information of storing in described bus latitude and longitude coordinates information and the described data memory module is compared, judge that whether vehicle is through the crossing;
The instruction output module: according to the comparison result of described data comparing module, output steering order control signal lamp changes, and when bus obtains priority signal, the information of priority signal and signal lamp variable condition is sent to described priority signal processing unit;
Described priority signal processing unit is arranged at inside, command and control center, it comprises video processing module, be used for being sent to described Vehicular video display module after the information processing with priority signal and signal lamp variable condition, whether described Vehicular video display module prompting bus driver obtains next step situation of change of priority signal and signal lamp;
Be provided with information display board control module in the described priority signal processing unit, whether described information display board control module is according to having bus to obtain the priority pass signal, and the described information display board of control different directions shows below information:
The information display board prompting and command control center that arranges on the prior-release direction is for the bus of this direction running provides priority signal, and vehicle can normally pass through the crossing;
The information display board prompting and command control center that arranges on the non-prior-release direction needs ramp to stop to wait for for the other direction bus provides priority signal.
In the present embodiment, described information display board is formed by being arranged on travel four LED electronic displays of downstream direction of crossing place vehicle;
Described information display board control module output control signal " 1 " is during to described LED electronic display, the information of described LED electronic display screen displays prior-release signal;
Described information display board control module output control signal " 0 " is during to described LED electronic display, and described LED electronic display screen displays the other side vehicle obtains the information of prior-release signal.
Present embodiment also provides a kind of signal priority control method that guarantees that public transport is unimpeded, may further comprise the steps:
A, the utilization of signal lamp control module have the electronic chart of latitude and longitude coordinates information, obtain the latitude and longitude coordinates information of each center, crossing and position, monitoring point, are stored in the data memory module with the form of tables of data; The downstream direction that travels at each place, crossing vehicle is provided with the information display board with unique definite id information, also stores the id information of the information display board that is arranged at the place, crossing in the described tables of data;
As shown in Figure 1, a plurality of monitoring points are set at the crossing, the distance between adjacent two described monitoring points is the distance that vehicle travels a second with this highway section speed limit;
B, vehicle location detection module obtain bus latitude and longitude coordinates information in real time, are sent to the data reception module of signal lamp control module;
As preferred embodiment, can utilize the GPS locating module with communication function to obtain bus latitude and longitude coordinates information in real time and described bus latitude and longitude coordinates information is sent to described data reception module;
C, data comparing module are compared the crossing center longitude coordinate information in bus latitude and longitude coordinates information in the described data reception module and the described data memory module in real time, judge that whether bus is near the crossing;
D, determine that bus is near the crossing after, the data comparing module is compared the latitude and longitude coordinates information of described bus latitude and longitude coordinates information and described monitoring point in real time, when vehicle arrives the monitoring point, the data comparing module is to instruction output module sending controling instruction, and instruction output module control belisha beacon provides the green light all-clear for bus and the public traffic in priority position is set and is " 1 "; Described instruction output module is sent to the priority signal processing unit with the information of priority signal and signal lamp variable condition simultaneously;
Judging whether vehicle arrives certain when a bit, when bus and certain distance between a bit less than vehicle with this highway section speed limit travel one second distance a half, think that bus arrives this point;
Be sent to described Vehicular video display module after the information processing of video processing module with priority signal and signal lamp variable condition that arranges in the e, described priority signal processing unit, whether the prompting bus driver obtains next step situation of change of priority signal and signal lamp;
Described information display board control module control is arranged on the information of the information display board prompting acquisition prior-release signal of prior-release direction;
The information display board that described information display board control is arranged on non-prior-release direction shows the information that priority signal is provided for the other side's bus;
In the present embodiment, described information display board is formed by being arranged on travel four LED electronic displays of downstream direction of crossing place vehicle;
Described information display board control module sends " 1 " signal to the LED electronic display that is arranged on the prior-release direction, sends " 0 " signal to the LED electronic display that is arranged on the non-prior-release direction;
Also comprise the steps present embodiment f, described data comparing module continue the real-time bus latitude and longitude coordinates information that receives of described data reception module and the crossing center longitude coordinate information in the described data memory module are compared in real time, when vehicle arrives the center, crossing, the public traffic in priority position is set is " 0 ".
The course of work of this bus signals lamp priority control system is:
At first, for each belisha beacon is numbered 1～M, adopt electronic chart to obtain each crossing center longitude coordinate information (x
m, y
m) monitoring point latitude and longitude coordinates information (x on (wherein horizontal ordinate represents longitude, and ordinate represents latitude value, and m represents the m crossing) and each crossing four direction
Mn, y
Mn) (wherein horizontal ordinate represents longitude, ordinate represents latitude value, subscript m and n represent the coordinate information of n the monitoring point at m crossing) and be stored in the described data memory module with the form of tables of data, m intersection information storage mode shown in Figure 1 is as shown in the table:
In the process that public transit vehicle is advanced, described GPS locating module is determined the once latitude and longitude coordinates information (x of described vehicle in 1s
k, y
k), then utilize data transmission module to send this latitude and longitude coordinates information in the data processing unit data reception module.
The data comparing module is with described vehicle latitude and longitude coordinates information (x
k, y
k) with described data memory module in tables of data in each crossing center longitude coordinate information (x
m, y
m) compare, and then determine whether described vehicle is more and more nearer apart from the crossing.
Judge vehicle near the crossing after, the data comparing module is with described vehicle latitude and longitude coordinates information (x
k, y
k) with described data memory module in tables of data in monitoring point latitude and longitude coordinates information (x
Mn, y
Mn) compare, according to the position, monitoring point that vehicle arrives, provide the all-clear of different directions for vehicle.Consider the time delay of signals transmission, when the distance between vehicle and the monitoring point during less than L/2, think that vehicle arrives this monitoring point, when vehicle latitude and longitude coordinates information equals (x
Mn, y
Mn) time, can determine that then vehicle arrives n the monitoring point at m crossing, signal lamp control module control this moment m belisha beacon is that vehicle is opened green light, the public traffic in priority position is set is " 1 ", described priority signal processing unit comprises video processing module simultaneously, after junction ahead signal lamp light color status information and information processing excess time be the video information that can play of described Vehicular video display module, be prompted to the driver by described Vehicular video display module.And the information display board control module of priority signal processing unit inside shows information according to the display board of clearance phase control correspondence, and as shown in Figure 1, the North and South direction configuration information display board at each crossing is designated a and b, and id information is ma, mb; The identification number of each crossing east-west direction configuration information display board is c and d, and id information is mc, md.If North and South direction is let pass, then information display board control module transmits control signal " 1 " to information display board a and b, and prompting obtains the information of prior-release signal; Transmit control signal " 0 " to information display board c and d, show the information that priority signal is provided for the other side's bus.Then the driver of both direction obtains can determine that oneself can normally still need the wait of stopping by the crossing after the prompting, for next step action is got ready.The data comparing module continues described vehicle latitude and longitude coordinates information (x
k, y
k) with described data memory module in tables of data in crossing center longitude coordinate information (x
m, y
m) compare, when the distance at vehicle and center, crossing during less than L/2, think that vehicle arrives the center, crossing, the green light of signal lamp control module control this moment vehicle heading becomes amber light, the public traffic in priority position is set is " 0 ".
Embodiment 2
In the present embodiment, in order to make bus obtain green light signals in suitable position, and it is excessive can too far or too closely not cause normal traffic to be affected apart from the center, crossing because of the monitoring point, as shown in Figure 2, a plurality of monitoring points are set at the crossing, because GPS every the locking of the positional information of the vehicle of 1s once, therefore the distance between the adjacent monitoring point makes that for the ultimate range L that public transit vehicle travels p.s. the positional information of each monitoring point is effective information.Travel speed according to vehicle, when vehicle travels when very fast, provide priority signal for vehicle when setting vehicle and arriving apart from monitoring point far away, crossing, when vehicle travels when slow, provide priority signal for vehicle when setting vehicle and arriving apart from nearer monitoring point, crossing.
Embodiment 3
In the present embodiment, described Vehicular video display module also comprises a sounding submodule, in the corresponding described priority signal processing unit audio processing modules is set, the signal lamp status information of vehicle heading is treated to the sound signal that described sounding submodule can be play, play this sound signal by described sounding submodule and whether can pass through the crossing with the prompting driver, for example can play " passing through ", the driver learns just that oneself can give it the gun and passes through the crossing, play and pass through the crossing after " waiting for 3 seconds " driver just must wait for 3 seconds, just can slow down and go slowly.
Though the present invention elaborates it by embodiment; but; those skilled in the art should be understood that any form that does not exceed the claim protection domain made on this basis and the variation of details, all belong to invention which is intended to be protected.
Claims (7)
1. signal priority control method that guarantees that public transport is unimpeded is characterized in that:
May further comprise the steps:
A, the utilization of signal lamp control module have the electronic chart of latitude and longitude coordinates information, obtain the latitude and longitude coordinates information of each center, crossing and position, monitoring point, are stored in the data memory module with the form of tables of data; The downstream direction that travels at each place, crossing vehicle is provided with the information display board with unique definite id information, also stores the id information of the information display board that is arranged at the place, crossing in the described tables of data;
B, vehicle location detection module obtain bus latitude and longitude coordinates information in real time, are sent to the data reception module of signal lamp control module;
C, data comparing module are compared the bus latitude and longitude coordinates information of described data reception module reception and the crossing center longitude coordinate information in the described data memory module in real time, judge that whether bus is near the crossing;
D, determine that bus is near the crossing after, the data comparing module is compared the latitude and longitude coordinates information of described bus latitude and longitude coordinates information and described monitoring point in real time, when vehicle arrives the monitoring point, the data comparing module is to instruction output module sending controling instruction, and instruction output module control belisha beacon provides the green light all-clear for bus and the public traffic in priority position is set and is " 1 "; Described instruction output module is sent to the priority signal processing unit with the information of priority signal and signal lamp variable condition simultaneously;
Be sent to the Vehicular video display module after the information processing of video processing module with priority signal and signal lamp variable condition that arranges in the e, described priority signal processing unit, whether the prompting bus driver obtains next step situation of change of priority signal and signal lamp;
The control of information display board control module is arranged on the information of the information display board prompting acquisition prior-release signal of prior-release direction;
The information display board that described information display board control module control is arranged on non-prior-release direction shows the information that priority signal is provided for the other side's bus.
2. the unimpeded signal priority control method of assurance public transport according to claim 1 is characterized in that:
Further comprising the steps of:
F, described data comparing module continue the real-time bus latitude and longitude coordinates information that receives of described data reception module and the crossing center longitude coordinate information in the described data memory module are compared in real time, when vehicle arrives the center, crossing, the public traffic in priority position is set is " 0 ".
3. the unimpeded signal priority control method of assurance public transport according to claim 1 and 2 is characterized in that:
In the described steps d, a plurality of monitoring points are set at the crossing, the distance between adjacent two described monitoring points is the distance that vehicle travels a second with this highway section speed limit;
Travel speed according to bus, when bus travels when very fast, provide public transport priority signal for bus when setting bus and arriving apart from monitoring point far away, crossing, when bus travels when slow, provide public transport priority signal for bus when setting bus and arriving apart from nearer monitoring point, crossing.
4. the unimpeded signal priority control method of assurance public transport according to claim 3 is characterized in that:
Among the described step b, utilize the GPS locating module with communication function to obtain bus latitude and longitude coordinates information in real time and described bus latitude and longitude coordinates information is sent to described data reception module.
5. the unimpeded signal priority control method of assurance public transport according to claim 4 is characterized in that:
When bus and certain distance between a bit less than vehicle with this highway section speed limit travel one second distance a half, think that bus arrives this point.
6. the unimpeded signal priority control method of assurance public transport according to claim 5 is characterized in that:
Among the described step e, described information display board is formed by being arranged on travel four LED electronic displays of downstream direction of crossing place vehicle;
Described information display board control module sends " 1 " signal to the LED electronic display that is arranged on the prior-release direction, sends " 0 " signal to the LED electronic display that is arranged on the non-prior-release direction.
7. the unimpeded signal priority control method of assurance public transport according to claim 6 is characterized in that:
Among the described step e, described Vehicular video display module also comprises a sounding submodule, described priority signal processing unit also comprises audio processing modules, and described audio processing modules is the sound signal that described sounding submodule can be play with information, junction ahead signal lamp light color status information and information processing excess time whether bus obtains priority signal.
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| CN 201110337039 CN102402863B (en) | 2011-10-28 | 2011-10-28 | Signal priority control system and method for ensuring bus circulation |
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| CN 201110337039 CN102402863B (en) | 2011-10-28 | 2011-10-28 | Signal priority control system and method for ensuring bus circulation |
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|---|---|---|---|---|
| CN103473946B (en) * | 2013-06-25 | 2017-05-10 | 中国计量学院 | Coordinate-based crossing signal lamp state instant prompting method and coordinate-based crossing signal lamp state instant prompting |
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| JPH11213287A (en) * | 1998-01-22 | 1999-08-06 | Sanyo Electric Works Ltd | Vehicle priority information transmitting device and traffic light |
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| CN101587649A (en) * | 2008-05-20 | 2009-11-25 | 奥城同立科技开发（北京）有限公司 | Control system for prior-vehicle prior-release at traffic crossing |
| CN101789185B (en) * | 2010-03-11 | 2012-11-07 | 武汉理工大学 | Wireless traffic signal method for cooperating vehicle with tracks at intersections |
| CN102097010B (en) * | 2010-12-14 | 2012-11-07 | 北京航空航天大学 | Vehicle-mounted traffic signal prompt system for receiving information from road-junction signal lamp |
| CN102097005B (en) * | 2011-02-01 | 2013-04-03 | 吉林大学 | Intelligent and integrated traffic signal controller |
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