CN107545744A - Special duty's traffic signal control system and method based on GPS and the correction of GIS line matchings - Google Patents
Special duty's traffic signal control system and method based on GPS and the correction of GIS line matchings Download PDFInfo
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Abstract
The present invention provides a kind of special duty's traffic signal control system based on GPS and the correction of GIS line matchings, including：It is arranged at GPS module on special duty's vehicle, GIS corrections module, decision-making module, line configuring module, wireless communication module；It is arranged at monitoring module, the signal control command module of command centre；Wherein, GPS module is connected to GIS correction modules, GIS correction module connection decision-making modules, and decision-making module transfers line configuring module data and is connected to signal control command module using wireless communication module；Monitoring module can obtain GIS corrections module, signal control command module, line configuring module running status and data；Semaphore of the signal control command module respectively with crossing is in communication with each other, and is in communication with each other with the wireless communication module on special duty's vehicle；The work simplification when present invention enables to special duty's circuit tasks carrying, input police strength reduce, social traffic impact are weakened.
Description
Technical field
The present invention relates to traffic special duty's signal control field, and in particular to GPS and special duty's traffic of GIS line matchings correction
Whistle control system and the control method for passing through the control system.
Background technology
With the continuous expansion in city, all kinds of accidents are more and more, such as fire-fighting, speedily carry out rescue work, police service, rescue.It is prominent above
Hair event needs special duty to reach the spot the vehicle very first time, and vehicle is often blocked at crossing by red light in the process of moving, from
And special duty's vehicle can not reach spot in time, the direct correlation security of the lives and property of the people.Therefore special duty's signal
Priority acccess control has very important significance to this to social security.
Existing special duty's traffic signalization needs to distribute police strength crossing along in advance, treats that special duty's vehicle will arrive
Up to when, people's police control traffic signals manually.In the recent period with the popularization of networking traffic signalization, front end crossing can be with command centre
It is controlled, center people's police are linked up by intercom and vehicle participant, and locking vehicle in advance in command centre will
The crossing of arrival.The police strength of above way input is more, and communication is complex, and crossing execution locking unblock opportunity is difficult to hold essence
Standard, bad influence is easily caused to social traffic.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided one kind is based on GPS and GIS line matchings
Special duty's traffic signal control system of correction, and the control method based on this control system, special duty's circuit only need to be preset, led to
Cross GPS the and GIS line matchings correction cause for gossip that can satisfy the need to apply and be precisely controlled, automaticity is high.The technology that the present invention uses
Scheme is：
A kind of special duty's traffic signal control system based on GPS and the correction of GIS line matchings, including：
It is arranged at GPS module on special duty's vehicle, GIS corrections module, decision-making module, line configuring module, wireless communication module；
It is arranged at monitoring module, the signal control command module of command centre；
Wherein, GPS module is connected to GIS correction modules, GIS correction module connection decision-making modules, and decision-making module is transferred circuit and matched somebody with somebody
Put module data and be connected to signal control command module using wireless communication module；Monitoring module can obtain GIS correction module,
Signal control command module, line configuring module running status and data；
Semaphore of the signal control command module respectively with crossing is in communication with each other, mutual with the wireless communication module on special duty's vehicle
Communication；
GPS module is used for the GPS location information for obtaining special duty's vehicle；
Road path information is provided with GIS correction modules；GIS correction modules are used to be rectified a deviation, and GPS location information matches are arrived
On road, and calculate path distance of special duty's vehicle along road path to actual crossing；
Decision-making module, for analyzing the location status after crossing signals state and special duty's vehicle deviation rectifying, crossing signals are initiated to lock
Fixed order or unlocking command；
Wireless communication module, communicated to connect for being established by communication and signal control command module；
Line configuring module, for the crossing order list to be passed through of prewired special duty's circuit, each crossing in special duty's circuit
Locking flow direction and semaphore lock triggering distance and signal unlock trigger distance；
Signal control command module is used for the order that forwarding decision module is sent to semaphore；
Monitoring module, for monitoring special duty's crossing signals running status and special duty's vehicle location state in real time.
Further, GIS corrections module is rectified a deviation, and is specifically included：
The GPS location point accumulated in one away from current time period is ranked table and carried out according to time sequence by GIS correction modules, first
The point position that offset away from road is first exceeded to given threshold filters out, and is arranged to Null Spot position；It is newest after selection filtering to have
GPS location point position is imitated as the GPS location information after filtering；GPS location information after filtering is matched with road：Mistake
After filter GPS location information middle-range current time it is nearest point position it is as a reference point, selected distance reference point is nearest on road
Point, as the GPS location point position after current correction, the GPS location point position after current correction is calculated along road path to actual road
The path distance of mouth；This path distance is exactly path distance of special duty's vehicle to actual crossing.
Further, the line configuring module, the crossing to be passed through successively for being pre-configured with special duty's circuit, is wrapped simultaneously
Positional information containing this little crossing, line configuring module can determine the import direction at crossing with going out according to upstream and downstream crossing position
Mouth direction is so that it is determined that special duty flows to；Each crossing locks triggering distance and signal unlock trigger according to jam situation setting signal
Distance.
A kind of special duty's traffic signal control method based on GPS and the correction of GIS line matchings, comprises the following steps：
Step S1, the special duty's line configuring preset using line configuring module, obtain the crossing to be passed through successively of special duty's circuit；
Step S2, user start to perform special duty's circuit；
Step S3, obtain the GPS location information of special duty's vehicle；
Step S4, GIS path adaptation corrections are carried out to GPS location information, and calculate special duty's vehicle along road path to actual road
The path distance of mouth；
Step S5, judge above-mentioned path distance variation tendency, then execution the step S6, increased then execution step S10 of reduction；
Step S6, in the case of above-mentioned path distance persistently reduces, it is judged as special duty's vehicle into crossing；
Step S7, judges whether above-mentioned path distance is less than semaphore lock triggering distance, such as no if then performing next step S8
Then go to step S14；
Step S8, judges whether crossing signals have locked, if then going to step S14, if otherwise carrying out step S9；
Step S9, crossing signals lock command is sent to the intersection annunciator；Go to step S14；
Step S10, in the case of above-mentioned path distance continues to increase, it is judged as that special duty's vehicle is leaving crossing；
Step S11, judges whether above-mentioned path distance is more than signal unlock trigger distance, if then performing next step S12, such as
Otherwise S14 is gone to step；
Step S12, judges whether crossing signals have locked, if step S13 is then carried out, if otherwise going to step S14；
Step S13, crossing signals unlocking command is sent to the intersection annunciator；
Step S14, detect the semaphore lock state at crossing；
Step S15, judge whether that all crossing signals complete unblock, if step S16 is then carried out, if otherwise return to step S3；
Step S16, judge whether to leave last crossing in special duty's circuit, if otherwise return to step S3, if so, then tying
Beam special service task.
The advantage of the invention is that：Control point accuracy is improved using GPS module and GIS correction modules, is found optimal
On control locking crossing signals opportunity, improve traffic control efficiency；The present invention enables to the letter that worked during special duty's circuit tasks carrying
Change, input police strength is reduced, and social traffic impact is weakened.
Specific beneficial effect is：
1. traditional artificial special duty is converted into the high mobile special duty of automaticity by the present invention, reduce the throwing of police strength resource
Enter.
2. the present invention can quickly identify that crossing turns to by crossing coordinate and sequencing, it is each to eliminate special duty's circuit
The work of crossing selection locking flow direction, improves special duty's circuit and sets efficiency.
3. the present invention adds GIS circuits correction correction algorithm using the GPS of specialty, accurately special duty's vehicle is positioned, it is right
Crossing control moment point is more accurate, reduces because special service task performs the influence of object road traffic.
Parameter configuration is carried out to traffic signaling equipment at crossing scene and is intervened to control 4. the present invention realizes so that traffic
Administrative staff can intuitively observe the traffic behavior at crossing in control so that the parameter configuration and do that commanding is carried out
Pre-control disclosure satisfy that the randomness and real-time of traffic flow.
Brief description of the drawings
Fig. 1 is the structure composition schematic diagram of the present invention.
Fig. 2 is the control method flow chart of the present invention.
Embodiment
With reference to specific drawings and examples, the invention will be further described.
As shown in figure 1, special duty's traffic signal control system proposed by the present invention based on GPS and the correction of GIS line matchings,
Including：
It is arranged at GPS module on special duty's vehicle, GIS corrections module, decision-making module, line configuring module, wireless communication module；
These modules can be integrated on a computer with touch-screen, such as the tablet personal computer with GPS functions；
It is arranged at monitoring module, the signal control command module of command centre；
Wherein, GPS module is connected to GIS correction modules, GIS correction module connection decision-making modules, and decision-making module is transferred circuit and matched somebody with somebody
Put module data and be connected to signal control command module using wireless communication module；Monitoring module can obtain GIS correction module,
Signal control command module, line configuring module running status and data；
Semaphore of the signal control command module respectively with crossing is in communication with each other, mutual with the wireless communication module on special duty's vehicle
Communication；
GPS module is used for the GPS location information for obtaining special duty's vehicle；
Road path information is provided with GIS correction modules；GIS correction modules are used to be rectified a deviation, and GPS location information matches are arrived
On road, and calculate path distance of special duty's vehicle along road path to actual crossing；
Specifically, GIS corrections module will one away from current time period（Such as in 10 seconds）The GPS location point position of interior accumulation
List is carried out according to time sequence, and the point position that the offset away from road is exceeded to given threshold first filters out, and is arranged to Null Spot
Position, such as point position of the offset more than 50 meters or 100 meters filter out；Effective GPS location point position newest after filtering is chosen to make
For the GPS location information after filtering；GPS location information after filtering is matched with road：GPS location information after filtering
Middle-range current time it is nearest point position it is as a reference point, the nearest point of selected distance reference point on road, as current correction
GPS location point position afterwards, calculate path distance of the GPS location point position after current correction along road path to actual crossing；This
Individual path distance is exactly path distance of special duty's vehicle to actual crossing；
Decision-making module, for analyzing the location status after crossing signals state and special duty's vehicle deviation rectifying, crossing signals are initiated to lock
Fixed order or unlocking command；
Wireless communication module, communicated to connect for being established by communication and signal control command module；
Line configuring module, for the crossing order list to be passed through of prewired special duty's circuit, each crossing in special duty's circuit
Locking flow direction and semaphore lock triggering distance and signal unlock trigger distance；
Specifically, the line configuring module, the crossing to be passed through successively for being pre-configured with special duty's circuit, while include this
The positional information at a little crossings, line configuring module can determine the import direction at crossing with going out automatically according to upstream and downstream crossing position
Mouth direction is so that it is determined that special duty flows to；User can also change special duty's flow direction at crossing by hand, and each crossing is set according to jam situation
Put semaphore lock triggering distance and signal unlock trigger distance；
Signal control command module is used for the order that forwarding decision module is sent to semaphore；
Monitoring module, for monitoring special duty's crossing signals running status and special duty's vehicle location state in real time.
Special duty's traffic signal control method based on GPS and the correction of GIS line matchings, as shown in Fig. 2 including following step
Suddenly：
Step S1, the special duty's line configuring preset using line configuring module, obtain the crossing to be passed through successively of special duty's circuit；
Step S2, user start to perform special duty's circuit；
Step S3, obtain the GPS location information of special duty's vehicle；
Step S4, GIS path adaptation corrections are carried out to GPS location information, and calculate special duty's vehicle along road path to actual road
The path distance of mouth；
Step S5, judge above-mentioned path distance variation tendency, then execution the step S6, increased then execution step S10 of reduction；
Step S6, in the case of above-mentioned path distance persistently reduces, it is judged as special duty's vehicle into crossing；
Step S7, judges whether above-mentioned path distance is less than semaphore lock triggering distance, such as no if then performing next step S8
Then go to step S14；
Step S8, judges whether crossing signals have locked, if then going to step S14, if otherwise carrying out step S9；
Step S9, crossing signals lock command is sent to the intersection annunciator；Go to step S14；
Step S10, in the case of above-mentioned path distance continues to increase, it is judged as that special duty's vehicle is leaving crossing；
Step S11, judges whether above-mentioned path distance is more than signal unlock trigger distance, if then performing next step S12, such as
Otherwise S14 is gone to step；
Step S12, judges whether crossing signals have locked, if step S13 is then carried out, if otherwise going to step S14；
Step S13, crossing signals unlocking command is sent to the intersection annunciator；
Step S14, detect the semaphore lock state at crossing；
Step S15, judge whether that all crossing signals complete unblock, if step S16 is then carried out, if otherwise return to step S3；
Step S16, judge whether to leave last crossing in special duty's circuit, if otherwise return to step S3, if so, then tying
Beam special service task.
Term explanation, GIS:GIS-Geographic Information System（Geographic Information System).
Claims (4)
- A kind of 1. special duty's traffic signal control system based on GPS and the correction of GIS line matchings, it is characterised in that including：It is arranged at GPS module on special duty's vehicle, GIS corrections module, decision-making module, line configuring module, wireless communication module；It is arranged at monitoring module, the signal control command module of command centre；Wherein, GPS module is connected to GIS correction modules, GIS correction module connection decision-making modules, and decision-making module is transferred circuit and matched somebody with somebody Put module data and be connected to signal control command module using wireless communication module；Monitoring module can obtain GIS correction module, Signal control command module, line configuring module running status and data；Semaphore of the signal control command module respectively with crossing is in communication with each other, mutual with the wireless communication module on special duty's vehicle Communication；GPS module is used for the GPS location information for obtaining special duty's vehicle；Road path information is provided with GIS correction modules；GIS correction modules are used to be rectified a deviation, and GPS location information matches are arrived On road, and calculate path distance of special duty's vehicle along road path to actual crossing；Decision-making module, for analyzing the location status after crossing signals state and special duty's vehicle deviation rectifying, crossing signals are initiated to lock Fixed order or unlocking command；Wireless communication module, communicated to connect for being established by communication and signal control command module；Line configuring module, for the crossing order list to be passed through of prewired special duty's circuit, each crossing in special duty's circuit Locking flow direction and semaphore lock triggering distance and signal unlock trigger distance；Signal control command module is used for the order that forwarding decision module is sent to semaphore；Monitoring module, for monitoring special duty's crossing signals running status and special duty's vehicle location state in real time.
- 2. special duty's traffic signal control system based on GPS and the correction of GIS line matchings as claimed in claim 1, its feature It is,GIS corrections module is rectified a deviation, and is specifically included：The GPS location point accumulated in one away from current time period is ranked table and carried out according to time sequence by GIS correction modules, first The point position that offset away from road is first exceeded to given threshold filters out, and is arranged to Null Spot position；It is newest after selection filtering to have GPS location point position is imitated as the GPS location information after filtering；GPS location information after filtering is matched with road：Mistake After filter GPS location information middle-range current time it is nearest point position it is as a reference point, selected distance reference point is nearest on road Point, as the GPS location point position after current correction, the GPS location point position after current correction is calculated along road path to actual road The path distance of mouth；This path distance is exactly path distance of special duty's vehicle to actual crossing.
- 3. special duty's traffic signal control system based on GPS and the correction of GIS line matchings as claimed in claim 1, its feature It is,The line configuring module, the crossing to be passed through successively for being pre-configured with special duty's circuit, while include this little crossing Positional information, line configuring module can determine the import direction at crossing with export direction so that really according to upstream and downstream crossing position Determine special duty's flow direction；Each crossing locks triggering distance and signal unlock trigger distance according to jam situation setting signal.
- A kind of 4. special duty's traffic signal control method based on GPS and the correction of GIS line matchings, suitable for such as claim 1-3 Any one of based on GPS and GIS line matchings correction special duty's traffic signal control system, it is characterised in that including Following steps：Step S1, the special duty's line configuring preset using line configuring module, obtain the crossing to be passed through successively of special duty's circuit；Step S2, user start to perform special duty's circuit；Step S3, obtain the GPS location information of special duty's vehicle；Step S4, GIS path adaptation corrections are carried out to GPS location information, and calculate special duty's vehicle along road path to actual road The path distance of mouth；Step S5, judge above-mentioned path distance variation tendency, then execution the step S6, increased then execution step S10 of reduction；Step S6, in the case of above-mentioned path distance persistently reduces, it is judged as special duty's vehicle into crossing；Step S7, judges whether above-mentioned path distance is less than semaphore lock triggering distance, such as no if then performing next step S8 Then go to step S14；Step S8, judges whether crossing signals have locked, if then going to step S14, if otherwise carrying out step S9；Step S9, crossing signals lock command is sent to the intersection annunciator；Go to step S14；Step S10, in the case of above-mentioned path distance continues to increase, it is judged as that special duty's vehicle is leaving crossing；Step S11, judges whether above-mentioned path distance is more than signal unlock trigger distance, if then performing next step S12, such as Otherwise S14 is gone to step；Step S12, judges whether crossing signals have locked, if step S13 is then carried out, if otherwise going to step S14；Step S13, crossing signals unlocking command is sent to the intersection annunciator；Step S14, detect the semaphore lock state at crossing；Step S15, judge whether that all crossing signals complete unblock, if step S16 is then carried out, if otherwise return to step S3；Step S16, judge whether to leave last crossing in special duty's circuit, if otherwise return to step S3, if so, then tying Beam special service task.
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Cited By (4)
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| CN110610614A (en) * | 2019-09-18 | 2019-12-24 | 四川华控智能交通设施工程有限公司 | Intelligent signal control machine and control method thereof |
| CN111965679A (en) * | 2020-06-23 | 2020-11-20 | 南京市公安局 | Video monitoring and positioning system based on Beidou high-precision positioning and road network and positioning method thereof |
| CN113034936A (en) * | 2021-03-12 | 2021-06-25 | 四川华控智能交通设施工程有限公司 | Guard route and special service route control system and control method thereof |
| CN114282033A (en) * | 2022-03-02 | 2022-04-05 | 成都智达万应科技有限公司 | Deviation correction and intelligent road disease reporting system based on GPS |
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