CN102142195B - Method for acquiring driving condition information of urban bus rapid transit - Google Patents
Method for acquiring driving condition information of urban bus rapid transit Download PDFInfo
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- CN102142195B CN102142195B CN 201110064222 CN201110064222A CN102142195B CN 102142195 B CN102142195 B CN 102142195B CN 201110064222 CN201110064222 CN 201110064222 CN 201110064222 A CN201110064222 A CN 201110064222A CN 102142195 B CN102142195 B CN 102142195B
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Abstract
The invention relates to a method for acquiring the driving condition information of an urban bus rapid transit, which comprises the following steps: firstly, selecting a BRT (Bus Rapid Transit) vehicle and carrying out information acquisition to the BRT vehicle through the sampling frequency of 1s, wherein the acquired initial information comprises the driving time ti, the longitude Xi, the latitude Yi and the instantaneous velocity Vi; secondly, defining the acceleration, deceleration, constant speed and idle speed driving conditions in the driving process of the vehicle; thirdly, converting the initial information; and fourthly, analyzing the vehicle information. The method has the beneficial effects that the working condition information of the vehicle can be accurately or precisely obtained, and more working condition information of the vehicle can be obtained to be convenient for understanding the working conditions of the vehicle.
Description
Technical field
The invention belongs to intelligent transportation field, particularly a kind of acquisition methods of driving condition information of urban bus rapid transit.
Background technology
In order effectively to alleviate Urban Traffic Jam Based and automotive emission pollution situation, energy-saving and emission-reduction, domestic increasing city is actively carried out the public traffic in priority strategy and is widelyd popularize fast public traffic system (Bus Rapid Transit is called for short BRT) in traffic policy.BRT is a kind of novel mass transit system between rail rapid transit and conventional public transport, it is a kind of large conveying quantity mode of transportation, usually also be called by the people " ground subway system ", it is to utilize modern public transport technology to cooperate intelligent transportation and operation management (such as the signal priority system), open up busway and build Novel bus station, the realization rail transportation operation is served, and reaches the urban transit system of a kind of uniqueness of light rail excellent service standard.
The domestic mainly total kilometrage by gathering at times BRT vehicle starting point and total working time, and then the operation conditions of BRT vehicle is grasped and estimated to the average running speed that obtains the different periods.Thereby there is a following problem:
1, can not accurately grasp the BRT vehicle in the stand-by period of each bus stop and signalized intersections, and each stand-by period is in total proportion relation working time;
2, lack the scientific basis that follow-up relevant intelligent transportation and operation management are further improved and optimize, such as the optimization of each intersection signal priority system etc.
Summary of the invention
For adopt existing method can't reflect the problem of BRT traveling state of vehicle comprehensively, the present invention proposes a kind of acquisition methods that can comprehensively reflect the driving condition information of urban bus rapid transit of BRT travel conditions.
Technical scheme of the present invention:
The acquisition methods of driving condition information of urban bus rapid transit is characterized in that: its step is as follows:
(1) a selected BRT vehicle carries out information acquisition with the sample frequency of 1s to the BRT vehicle, and the initial information of collection comprises that running time is t
i, longitude is X
i, latitude is Y
i, instantaneous velocity is V
i
(2) to the acceleration in the Vehicle Driving Cycle process, deceleration, at the uniform velocity reach the idling travel conditions and define; Accelerating mode refers in the process of moving acceleration a＞0.1m/s of vehicle
2Decelerating mode, refer to vehicle in the process of moving acceleration a＜-0.1m/s
2Operating mode at the uniform velocity, refer to vehicle in the process of moving-0.1m/s
2≤ a≤0.1m/s
2Idling operation refers to that vehicle motor is in running order but travel speed is 0;
(3) initial information is transformed, the instantaneous velocity after the definition process is v
i=1000V
i/ 3600, unit is m/s, acceleration a
i=v
i/ v
I-1, unit is m/s
2
(4) information of vehicles is carried out analyzing and processing;
A, total kilometres are fixed values;
B, overall travel time are through collecting;
C, average running speed are drawn by average running speed=total kilometres/overall travel time formula, and unit is km/h;
D, acceleration time T
aBe all stacks that meet the time point of accelerating mode definition in overall travel time, unit is s; The acceleration time ratio is by acceleration time ratio R
a=acceleration time T
a/ overall travel time formula draws;
E, deceleration time T
jBe all stacks that meet the time point of decelerating mode definition in overall travel time, unit is s; Deceleration time, ratio was by ratio R deceleration time
j=deceleration time T
j/ overall travel time formula draws;
F, time T at the uniform velocity
cBe that all meet the at the uniform velocity stack of the time point of operating mode definition in overall travel time, unit is s; At the uniform velocity time scale is by time scale R at the uniform velocity
c=deceleration time T
j/ overall travel time formula draws;
G, dead time T
dFor all instantaneous velocity values in overall travel time are the stack of the time point of " 0 ", unit is s; The dead time ratio is by dead time ratio R
d=dead time T
d/ overall travel time formula draws;
H, average overall travel speed are drawn by average overall travel speed=total kilometres/(overall travel time-dead time) formula, and unit is km/h;
I, website P
jThe on-board and off-board dead time
And dead time ratio
Website P
jThe wait dead time that enters the station
And dead time ratio
Crossing CR
kDead time
And dead time ratio
The analyzing and processing process as follows:
Step 1: establishing website is P
j, j=0,1,2...n, longitude and latitude is
If the crossing is CR
k, k=0,1,2...N, longitude and latitude is
Extract the idling point latitude and longitude coordinates longitude (X of BRT vehicle
i, Y
i), stop website with each
The latitude and longitude coordinates of crossing
Find the solution respectively apart from d;
Step 2: if with idling point be crossing CR apart from the d minimum
k, then the continuous dead time of this idling point formation is the BRT vehicle at crossing CR
kThe dead time at place
If with idling point distance minimum for stopping website P
j, then the continuous dead time of this idling point formation is the BRT vehicle and is stopping website P
jThe dead time at place;
Step 3: extract next idling point, process by step 1 method, if with this idling point apart from the d minimum be the crossing, then the continuous dead time that forms of this idling point is this correspondence crossing dead time; If with this idling point apart from the d minimum for stopping website, and the idling point is judged to be when stopping website in the step 2, judge then whether the stop website in this stop website and the step 2 is same website, if same stop website, then the dead time in the step 2 belongs to the BRT vehicle at stop website P
jThe wait dead time that enters the station
And the continuous dead time that this idling point forms is stop website P
jThe on-board and off-board dead time
If not same stop website, then the continuous dead time of this idling point formation is and stops website P
J+1Dead time;
Step 4: after dead time is entered the station in the on-board and off-board dead time that obtains each website and wait, can determine respectively the dead time ratio
With
After the dead time that obtains each crossing, can determine the dead time ratio of each crossing
Further, data acquisition in the step (1) is finished by acquisition system, described acquisition system comprises BRT vehicle, GPS terminal, signal receiving module, GPS information management system, satellite, and described GPS terminal and signal receiving module are installed in the front end of BRT vehicle; Described GPS terminal adopts the mode of high frequency sampling, and the sampling period is set as 1s; Described signal receiving module is finished real-time reception and the transmission of information; Described GPS information management system in real time to the BRT vehicle monitor, historical driving trace playback, electronic report forms statistical query; Described satellite gathers the longitude and latitude of BRT vehicle.
It is the GPS high frequency method of sampling in cycle that the present invention adopts 1s, BRT vehicle driving-cycle information is carried out data acquisition, proposed BRT vehicle each website on-board and off-board dead time, waited for the acquisition methods of the characteristic parameters such as dead time and each crossing dead time that enter the station.
Beneficial effect of the present invention: can be accurately or obtain accurately vehicle working condition information, and can obtain more vehicle working condition information, so that more understand the operating mode of vehicle.
Description of drawings
Fig. 1 is the structural drawing of acquisition system of the present invention.
Embodiment
The acquisition methods of driving condition information of urban bus rapid transit, its step is as follows:
(1) a selected BRT vehicle carries out information acquisition with the sample frequency of 1s to the BRT vehicle, and the initial information of collection comprises that running time is t
i, longitude is X
i, latitude is Y
i, instantaneous velocity is V
i
(2) to the acceleration in the Vehicle Driving Cycle process, deceleration, at the uniform velocity reach the idling travel conditions and define; Accelerating mode refers in the process of moving acceleration a＞0.1m/s of vehicle
2Decelerating mode, refer to vehicle in the process of moving acceleration a＜-0.1m/s
2Operating mode at the uniform velocity, refer to vehicle in the process of moving-0.1m/s
2≤ a≤0.1m/s
2Idling operation refers to that vehicle motor is in running order but travel speed is 0;
(3) initial information is transformed, the instantaneous velocity after the definition process is v
i=1000V
i/ 3600, unit is m/s, acceleration a
i=v
i/ v
I-1, unit is m/s
2
(4) information of vehicles is carried out analyzing and processing;
A, total kilometres are fixed values;
B, overall travel time are through collecting;
C, average running speed are drawn by average running speed=total kilometres/overall travel time formula, and unit is km/h;
D, acceleration time T
aBe all stacks that meet the time point of accelerating mode definition in overall travel time, unit is s; The acceleration time ratio is by acceleration time ratio R
a=acceleration time T
a/ overall travel time formula draws;
E, deceleration time T
jBe all stacks that meet the time point of decelerating mode definition in overall travel time, unit is s; Deceleration time, ratio was by ratio R deceleration time
j=deceleration time T
j/ overall travel time formula draws;
F, time T at the uniform velocity
cBe that all meet the at the uniform velocity stack of the time point of operating mode definition in overall travel time, unit is s; At the uniform velocity time scale is by time scale R at the uniform velocity
c=deceleration time T
j/ overall travel time formula draws;
G, dead time T
dFor all instantaneous velocity values in overall travel time are the stack of the time point of " 0 ", unit is s; The dead time ratio is by dead time ratio R
d=dead time T
d/ overall travel time formula draws;
H, average overall travel speed are drawn by average overall travel speed=total kilometres/(overall travel time-dead time) formula, and unit is km/h;
I, website P
jThe on-board and off-board dead time
And dead time ratio
Website P
jThe wait dead time that enters the station
And dead time ratio
Crossing CR
kDead time
And dead time ratio
The analyzing and processing process as follows:
Step 1: establishing website is P
j, j=0,1,2...n, longitude and latitude is
If the crossing is CR
k, k=0,1,2...N, longitude and latitude is
Extract the idling point latitude and longitude coordinates longitude (X of BRT vehicle
i, Y
i), stop website with each
The latitude and longitude coordinates of crossing
Find the solution respectively apart from d;
Step 2: if with idling point be crossing CR apart from the d minimum
k, then the continuous dead time of this idling point formation is the BRT vehicle at crossing CR
kThe dead time at place
If with idling point distance minimum for stopping website P
j, then the continuous dead time of this idling point formation is the BRT vehicle and is stopping website P
jThe dead time at place;
Step 3: extract next idling point, process by step 1 method, if with this idling point apart from the d minimum be the crossing, then the continuous dead time that forms of this idling point is this correspondence crossing dead time; If with this idling point apart from the d minimum for stopping website, and the idling point is judged to be when stopping website in the step 2, judge then whether the stop website in this stop website and the step 2 is same website, if same stop website, then the dead time in the step 2 belongs to the BRT vehicle at stop website P
jThe wait dead time that enters the station
And the continuous dead time that this idling point forms is stop website P
jThe on-board and off-board dead time
If not same stop website, then the continuous dead time of this idling point formation is and stops website P
J+1Dead time;
Step 4: after dead time is entered the station in the on-board and off-board dead time that obtains each website and wait, can determine respectively the dead time ratio
With
After the dead time that obtains each crossing, can determine the dead time ratio of each crossing
Data acquisition in the step (1) is finished by acquisition system, described acquisition system comprises BRT vehicle 1, GPS terminal 3, signal receiving module 2, GPS information management system 5, satellite 4, and described GPS terminal 3 and signal receiving module 2 are installed in the front end of BRT vehicle 1; Described GPS terminal 3 adopts the mode of high frequency sampling, and the sampling period is set as 1s; Described signal receiving module 2 is finished real-time reception and the transmission of information; Described GPS information management system 5 in real time to BRT vehicle 1 monitor, historical driving trace playback, electronic report forms statistical query; The longitude and latitude of 4 pairs of BRT vehicles 1 of described satellite gathers, and sees Fig. 1.
The described content of this instructions embodiment only is enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention also reaches in those skilled in the art conceives the equivalent technologies means that can expect according to the present invention.
Claims (2)
1. the acquisition methods of driving condition information of urban bus rapid transit, it is characterized in that: its step is as follows:
(1) a selected BRT vehicle carries out information acquisition with the sample frequency of 1s to the BRT vehicle, and the initial information of collection comprises that running time is t
i, longitude is X
i, latitude is Y
i, instantaneous velocity is V
i
(2) to the acceleration in the Vehicle Driving Cycle process, deceleration, at the uniform velocity reach the idling travel conditions and define; Accelerating mode refers in the process of moving acceleration a of vehicle〉0.1m/s
2Decelerating mode, refer to vehicle in the process of moving acceleration a＜-0.1m/s
2Operating mode at the uniform velocity, refer to vehicle in the process of moving-0.1m/s
2＜=a＜=0.1m/s
2Idling operation refers to that vehicle motor is in running order but travel speed is 0;
(3) the instantaneous velocity V of initial acquisition
iUnit is km/h, and the instantaneous velocity after the definition process is v
i=1000V
i/ 3600, unit is m/s; So acceleration a
i=v
i-v
I-1, unit is m/s
2, a wherein
iBe t
iAcceleration constantly, v
iBe t
iInstantaneous velocity constantly, v
I-1Be t
I-1Instantaneous velocity constantly;
(4) information of vehicles is carried out analyzing and processing;
A, total kilometres are fixed values;
B, overall travel time are through collecting;
C, average running speed are drawn by average running speed=total kilometres/overall travel time formula, and unit is km/h;
D, acceleration time T
aBe all stacks that meet the time point of accelerating mode definition in overall travel time, unit is s; The acceleration time ratio is by acceleration time ratio R
a=acceleration time T
a/ overall travel time formula draws;
E, deceleration time T
jBe all stacks that meet the time point of decelerating mode definition in overall travel time, unit is s; Deceleration time, ratio was by ratio R deceleration time
j=deceleration time T
j/ overall travel time formula draws;
F, time T at the uniform velocity
cBe that all meet the at the uniform velocity stack of the time point of operating mode definition in overall travel time, unit is s; At the uniform velocity time scale is by time scale R at the uniform velocity
c=time T at the uniform velocity
c/ overall travel time formula draws;
G, dead time T
dFor all instantaneous velocity values in overall travel time are the stack of the time point of " 0 ", unit is s; The dead time ratio is by dead time ratio R
d=dead time T
d/ overall travel time formula draws;
H, average overall travel speed are drawn by average overall travel speed=total kilometres/(overall travel time-dead time) formula, and unit is km/h;
I, website P
jThe on-board and off-board dead time
And dead time ratio
Website P
jThe wait dead time that enters the station
And dead time ratio
Crossing CR
kDead time
And dead time ratio
The analyzing and processing process as follows:
Step 1: establishing website is P
j, j=0,1,2...n, longitude and latitude is
If the crossing is CR
k, k=0,1,2...N, longitude and latitude is
Extract the idling point latitude and longitude coordinates longitude (X of BRT vehicle
i, Y
i), stop website with each
The latitude and longitude coordinates of crossing
Find the solution respectively apart from d;
Step 2: if with idling point be crossing CR apart from the d minimum
k, then the continuous dead time of this idling point formation is the BRT vehicle at crossing CR
kThe dead time at place
If with idling point distance minimum for stopping website P
j, then the continuous dead time of this idling point formation is the BRT vehicle and is stopping website P
jThe dead time at place;
Step 3: extract next idling point, process by step 1 method, if with this idling point apart from the d minimum be the crossing, then the continuous dead time that forms of this idling point is this correspondence crossing dead time; If with this idling point apart from the d minimum for stopping website, and the idling point is judged to be when stopping website in the step 2, judge then whether the stop website in this stop website and the step 2 is same website, if same stop website, then the dead time in the step 2 belongs to the BRT vehicle at stop website P
jThe wait dead time that enters the station
And the continuous dead time that this idling point forms is stop website P
jThe on-board and off-board dead time
If not same stop website, then the continuous dead time of this idling point formation is and stops website P
J+1Dead time;
Step 4: after dead time is entered the station in the on-board and off-board dead time that obtains each website and wait, can determine respectively the dead time ratio
With
After the dead time that obtains each crossing, can determine the dead time ratio of each crossing
2. the acquisition methods of driving condition information of urban bus rapid transit according to claim 1, it is characterized in that: the data acquisition in the step (1) is finished by acquisition system, described acquisition system comprises BRT vehicle, GPS terminal, signal receiving module, GPS information management system, satellite, and described GPS terminal and signal receiving module are installed in the front end of BRT vehicle; Described GPS terminal adopts the mode of high frequency sampling, and the sampling period is set as 1s; Described signal receiving module is finished real-time reception and the transmission of information; Described GPS information management system in real time to the BRT vehicle monitor, historical driving trace playback, electronic report forms statistical query; Described satellite gathers the longitude and latitude of BRT vehicle.
Priority Applications (1)
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|---|---|---|---|
| CN 201110064222 CN102142195B (en) | 2011-03-16 | 2011-03-16 | Method for acquiring driving condition information of urban bus rapid transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110064222 CN102142195B (en) | 2011-03-16 | 2011-03-16 | Method for acquiring driving condition information of urban bus rapid transit |
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| CN102142195A CN102142195A (en) | 2011-08-03 |
| CN102142195B true CN102142195B (en) | 2013-01-16 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104875731B (en) * | 2015-05-19 | 2017-05-17 | 交通运输部公路科学研究所 | Method for identifying rapid acceleration or rapid deceleration of vehicle in real time by using satellite positioning data |
| CN107133374A (en) * | 2017-01-23 | 2017-09-05 | 长安大学 | A kind of construction method of mode operating mode |
| CN106997662B (en) * | 2017-04-26 | 2020-04-10 | 长安大学 | Urban bus working condition construction method |
| CN107527140A (en) * | 2017-07-28 | 2017-12-29 | 西安理工大学 | A kind of bullet train operating condition based on fuzzy membership determines method |
| CN113064933B (en) * | 2021-03-22 | 2023-04-07 | 四川云智造科技有限公司 | Vehicle weight prediction method and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101256717A (en) * | 2008-04-09 | 2008-09-03 | 重庆市易博数字技术有限公司 | Quick public transport vehicle positioning based on GPS and traffic signal control method and apparatus |
| CN101751788A (en) * | 2009-12-31 | 2010-06-23 | 浙江工业大学 | Public transit exclusive lane resource sharing method and system for guaranteeing bus rapid transit priority |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008046998A (en) * | 2006-08-19 | 2008-02-28 | Masahiro Watanabe | Route bus operation management method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101256717A (en) * | 2008-04-09 | 2008-09-03 | 重庆市易博数字技术有限公司 | Quick public transport vehicle positioning based on GPS and traffic signal control method and apparatus |
| CN101751788A (en) * | 2009-12-31 | 2010-06-23 | 浙江工业大学 | Public transit exclusive lane resource sharing method and system for guaranteeing bus rapid transit priority |
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