CN107215355A - The method and subway broadcast system of operating range are calculated in subway broadcast system according to train speed - Google Patents
The method and subway broadcast system of operating range are calculated in subway broadcast system according to train speed Download PDFInfo
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- CN107215355A CN107215355A CN201710316546.1A CN201710316546A CN107215355A CN 107215355 A CN107215355 A CN 107215355A CN 201710316546 A CN201710316546 A CN 201710316546A CN 107215355 A CN107215355 A CN 107215355A
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- 238000004364 calculation method Methods 0.000 description 4
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0018—Communication with or on the vehicle or train
- B61L15/0036—Conductor-based, e.g. using CAN-Bus, train-line or optical fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0045—Destination indicators, identification panels or distinguishing signs on the vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/028—Determination of vehicle position and orientation within a train consist, e.g. serialisation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The present invention relates to a kind of method for calculating operating range in subway broadcast system according to train speed, it is：（1）Define unit and calculate the time；（2）Within each unit calculating time, the subway train operating range value S according to obtained by this calculatingnSubway train traveling value S obtained by=previous calculatingn‑1Velocity amplitude V in the+current one calculating time calculates the operating range value of subway train.During the actual travel of subway train, distance value leaving from station is calculated and the distance value that arrives at a station based on correction value leaving from station and correction value of arriving at a station, then subway broadcast system controls broadcast leaving from station and broadcast of arriving at a station according to the distance value leaving from station of calculating with distance value is arrived at a station.The method of the present invention can conveniently realize the calculating of subway train operating range value and its correlation by add operation, be provided safeguard so as to the control for subway broadcast system, it is possible to increase the precision of calling out the stops of subway broadcast system.
Description
Technical field
The invention belongs to subway circulation control field, and in particular to be calculated in a kind of subway broadcast system according to train speed
The method and subway broadcast system of operating range.
Background technology
At present, the vehicle-mounted broadcasting system in subway from the signal system of subway train can only obtain train by train bus-line
The velocity information of operation, and can not or subway train operating range information directly pass through velocity sensor obtain train fortune
Scanning frequency degree.In the case, if the signal system of train is only to vehicle-mounted broadcasting system with rate signal, subway vehicle-mounted broadcasting
The master controller of system is accomplished by calculating the operating range of train from signal system according to the velocity information obtained, and according to
The required distance of startup is broadcasted to control the broadcast leaving from station and broadcast of arriving at a station of startup vehicle-mounted broadcasting.For example, when subway train is rolled away from
150 meters of platform（This 150 meters i.e. startup distance of broadcast leaving from station, i.e., broadcast leaving from station starts distance threshold value）When need to control start arrange
In-car broadcast leaving from station, while updating the site information in dynamic map and LCD screen；And when subway train is apart from next stop platform
150 meters（The startup distance of this 150 meters next platforms of broadcast distances that arrive at a station, that is, broadcast of arriving at a station starts distance threshold value）Shi Ze
Startup need to be controlled to arrive at a station broadcast, while updating the site information in the display and LCD screen of dynamic map.So could be in subway
In the case that the time that distance between sites are not grown, platform is stopped is also very short, pass through the accurate startup of broadcast leaving from station and broadcast of arriving at a station
Enough times are reserved to passenger exactly to try one's best, broadcast of especially arriving at a station, it is to avoid passenger has little time to get off or lower mistake
Car.Therefore, existing subway broadcast system does not have a kind of can accurately calculate subway train based on the speed of train operation
The method of operating range control vehicle-mounted broadcasting, the problem be subway broadcast system realize accurate control it is urgently to be resolved hurrily.
The content of the invention
It is applied to subway broadcast system it is an object of the invention to provide one kind, the traveling of subway train can be conveniently realized
Distance value is calculated, and is thought in the subway broadcast system that the control of subway broadcast system provides safeguard according to train speed calculating traveling
The method and subway broadcast system of distance.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：
It is according to the method for train speed calculating operating range in a kind of subway broadcast system：（1）Define unit and calculate the time；
（2）Within each unit calculating time, the subway train operating range value S according to obtained by this calculatingn=previous calculating institute
The subway train traveling value S obtainedn-1Velocity amplitude V in+presently described unit calculating time calculates the operating range of subway train
Value.
It is preferred that, distance threshold value and institute are started according to the broadcast leaving from station that the requirement of the subway train starts broadcast leaving from station
The actual travel distance value for stating subway train reaches that the broadcast leaving from station starts the operating range value calculated during distance threshold value
And calculate and obtain correction value leaving from station, then during the actual travel of the subway train, according to distance value leaving from station=this calculating
The subway train operating range value S of gainedn+ correction value calculating leaving from station the subway train is between the website finally sailed out of
Distance value leaving from station；
According to the distance between sites value that will be reached website and finally sail out of between website of the subway train, require that startup is arrived at a station
The broadcast of arriving at a station of broadcast starts distance threshold value and in the subway train and will reach the actual range between website and reach
The broadcast of arriving at a station starts the operating range value of the subway train calculated during distance threshold value and calculates to obtain arriving at a station and repair
On the occasion of then during the actual travel of the subway train, according to the distance value that arrives at a station ,=the distance between sites value-is calculated
The operating range value S of the subway trainn- arrive at a station correction value to calculate between the website that the subway train distance will be reached
The distance value that arrives at a station.
It is preferred that, the correction value leaving from station=broadcast leaving from station start the actual travel of distance threshold value-subway train away from
From the operating range value of the subway train calculated when reaching that the broadcast leaving from station starts distance threshold value；
The correction value of arriving at a station=distance between sites value-in the subway train and the actual range between website will be reached
Reach that the broadcast of arriving at a station starts operating range value-broadcast startup of arriving at a station of the subway train calculated during distance threshold value
Distance threshold value.
It is preferred that, when the distance value leaving from station reaches default threshold value leaving from station, triggering subway broadcast system starts leaving from station
Broadcast；When the distance value that arrives at a station reach it is default arrive at a station threshold value when, triggering subway broadcast system starts broadcast of arriving at a station.
It is preferred that, the threshold value leaving from station is 150m, and the threshold value of arriving at a station is 150m.
It is preferred that, the unit speed according to as defined in TCMS agreements and define the unit and calculate the time.
It is preferred that, the unit calculates the time for 36ms.
It is preferred that, during the actual travel of the subway train, calculated during the station-arrival of subway train parking
The operating range of subway train is reset.
The present invention also provides a kind of subway broadcast system, and it includes the signal system by train bus-line with subway train
It is connected and obtains the velocity amplitude of the subway train operation and use the foregoing side that operating range is calculated according to train speed
The controller of method.
The subway broadcast system also include be connected by internal bus with the controller compartment broadcaster,
The storage device being connected with the controller.
Because above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：The present invention method and
Subway train operating range value and its phase can be conveniently realized by add operation using the subway broadcast system of this method
The calculating of pass value, provides safeguard, it is possible to increase the essence of calling out the stops of subway broadcast system so as to the control for subway broadcast system
Degree.
Embodiment
With reference to embodiment, the invention will be further described.
Embodiment one：A kind of method for calculating operating range in subway broadcast system according to train speed, it is main include with
Lower two steps：
（1）Define unit and calculate the time.The effect of definition unit calculating time, which is event to try one's best, is cut into the small period, from
And improve and calculate the frequency and computational accuracy.Unit is defined generally according to unit speed as defined in TCMS agreements and calculates the time.Institute
When defined unit speed is 1=0.1km/h, i.e., 1=1 meter/36 seconds=1 millimeter/36 milliseconds, therefore 36ms can be selected to be unit meter
Evaluation time, i.e., basic unit of account is calculated.The mesh for defining the unit calculating time is to utilize minimum time interval handle
The multiplying of distance is converted into add operation.
（2）The operating range value of subway train is calculated.Within each unit calculating time, i.e., in every 36ms, according to this
Subway train operating range value S obtained by calculatingnSubway train traveling value S obtained by=previous calculatingn-1When+current one is calculated
In velocity amplitude V iterate to calculate the operating range value of subway train.Calculate and counted in the 36ms of time in first unit
During calculation, the subway train traveling value S obtained by its previous calculatingn-1Take 0.Velocity amplitude V is obtained from the signal system of subway train
Newest train speed value.
Due to the meeting multiple websites of stop over during the actual travel of subway train, therefore station-arrival of subway train stops in practice
（Car door changes to closed mode from open mode）When, the operating range of the subway train calculated before it is reset, and simultaneously
The distance between sites between current site and next website are updated, so as to avoid the accumulation of calculation error, and are opened again when leaving from station
Begin to calculate.
The above method is by theoretic computational methods：Additional calculation is changed to apart from S=initial velocity V* times t+1/2at^2, because
This calculates more convenient and easy.
However, above-mentioned theory computational methods still suffer from error, it is therefore desirable to be modified.Modification method is：1. base area
The requirement of iron train starts the broadcast leaving from station startup distance threshold value of broadcast leaving from station and the actual travel distance value of subway train reaches
The operating range value calculated when starting distance threshold value to broadcast leaving from station, and calculate and obtain correction value leaving from station.Then arranged in subway
During the actual travel of car, according to " the subway train operating range value S obtained by distance value leaving from station=this calculatingn+ leaving from station repair
On the occasion of ", you can accurately to calculate the distance value leaving from station between the website that subway train distance is finally sailed out of.2. according to subway
Train will reach website and the last distance between sites value sailed out of between website, require that the broadcast of arriving at a station for starting broadcast of arriving at a station is opened
Move distance threshold value and reach that broadcast of arriving at a station starts distance threshold in subway train and the actual range that will be reached between website
The operating range value of the subway train calculated during value and calculate and obtain correction value of arriving at a station.Then in the actual travel mistake of subway train
Cheng Zhong, according to " the operating range value S of arrive at a station distance value=distance between sites value-subway train calculatedn- correction value of arriving at a station ", comes
Calculate the distance value that arrives at a station between the website that subway train distance will be reached.Owner can provide each neighbor stations before metro operation
Distance between sites, subway broadcast system can preserve this data.Be required for when subway train enters the station every time to be marked with ensure car door with
The uniformity of the position of shield door, so this distance between sites is almost changeless.Subway train accelerates hair during travelling
Life is slowed down and occurred during entering the station during station is rolled away from.Subway after debugging completes the formal operation of input, traction, automatically plus,
Deceleration curve is that comparison is fixed.Therefore above-mentioned correction value leaving from station and correction value of arriving at a station are only needed to before formal operation according to the reality of train
Difference between border operating range and the operating range calculated can be obtained, i.e., " correction value leaving from station=broadcast leaving from station starts range gate
The actual travel distance of limit value-subway train reaches that broadcast leaving from station starts the traveling of the subway train calculated during distance threshold value
Distance value "；" correction value of arriving at a station=distance between sites value-reach and arrive at a station in subway train and the actual range that will be reached between website
Operating range value-broadcast of arriving at a station that broadcast starts the subway train calculated during distance threshold value starts distance threshold value ".Due to
The traction braking system of subway is finished once debugging, and the acceleration of train, deceleration curve are substantially fixed, so leaving from station with arriving at a station
Correction value as long as formal traveling can once be decided on solid line before formal open, it is not necessary to subsequently correct again.
When subway train driving is between two stations, if being reached based on the distance value leaving from station that correction value leaving from station is calculated default
Broadcast leaving from station start distance threshold value（Such as 150m）, i.e., the subway train operating range obtained by distance value leaving from station=this calculating
Value SnDuring+correction value >=150m leaving from station, triggering subway broadcast system starts broadcast leaving from station, and synchronized update dynamic map and LCD
The site contents of screen；If reaching that default broadcast of arriving at a station starts distance threshold based on the distance value that arrives at a station that correction value of arriving at a station is calculated
Value（Such as 150m）, that is, the operating range value S of arrive at a station distance value=distance between sites value-subway train calculatedn- correction value of arriving at a station
During≤150m, triggering subway broadcast system starts the site information arrived at a station in broadcast, and synchronized update dynamic map and LCD screen.
By above method, under specific signaling interface agreement, the signal system of train is with the fixed cycle to subway
The current speed of broadcast system train, then the vehicle-mounted broadcast system of subway train driving can be calculated according to obtained train speed
Distance, judges whether to meet the trigger condition of broadcast leaving from station, broadcast of arriving at a station with reference to station spacing.
It is above-mentioned according to train speed calculate operating range method realized in subway broadcast system, subway broadcast system bag
Include controller, compartment broadcaster and storage device.Controller is connected by train bus-line with the signal system of subway train
Connect, so as to obtain the velocity amplitude of subway train operation, and in controller operation to have program above-mentioned according to train speed to perform
The method that degree calculates operating range, to calculate train driving distance, and according to result of calculation output control signal.Compartment broadcast dress
Put by internal bus and to be connected with controller, it includes LCD screen, broadcast in each compartment etc..The control that controller is sent
Signal delivers to compartment broadcaster by internal bus, compartment broadcaster trigger broadcast accordingly and synchronized update dynamically
Site information on figure and LCD screen.The phases such as website, the stop spacing that storage device is connected with the controller and train car is run
Close information.Two controllers can be set to switch to main frame or slave respectively in a set of subway broadcast system, and to be used as main frame
Controller subway broadcast system is controlled.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all be included within the scope of the present invention.
Claims (10)
1. the method for operating range is calculated in a kind of subway broadcast system according to train speed, it is characterised in that：The subway is wide
It is according to the method for train speed calculating operating range in broadcast system：（1）Define unit and calculate the time；（2）In each list
In the calculating time of position, the subway train operating range value S according to obtained by this calculatingnSubway train row obtained by=previous calculating
Sail value Sn-1Velocity amplitude V in+presently described unit calculating time calculates the operating range value of subway train.
2. the method for operating range, its feature are calculated in subway broadcast system according to claim 1 according to train speed
It is：Distance threshold value and the subway train are started according to the broadcast leaving from station that the requirement of the subway train starts broadcast leaving from station
Actual travel distance value reach the operating range value that the calculates when broadcast leaving from station starts distance threshold value and calculate and obtain
Correction value leaving from station, then during the actual travel of the subway train, the subway according to obtained by distance value leaving from station=this calculating
Train driving distance value SnThe leaving from station distance of+correction value calculating leaving from station subway train between the website finally sailed out of
Value；
According to the distance between sites value that will be reached website and finally sail out of between website of the subway train, require that startup is arrived at a station
The broadcast of arriving at a station of broadcast starts distance threshold value and in the subway train and will reach the actual range between website and reach
The broadcast of arriving at a station starts the operating range value of the subway train calculated during distance threshold value and calculates to obtain arriving at a station and repair
On the occasion of then during the actual travel of the subway train, according to the distance value that arrives at a station ,=the distance between sites value-is calculated
The operating range value S of the subway trainn- arrive at a station correction value to calculate between the website that the subway train distance will be reached
The distance value that arrives at a station.
3. the method for operating range, its feature are calculated in subway broadcast system according to claim 2 according to train speed
It is：The actual travel distance of the correction value leaving from station=broadcast leaving from station startup distance threshold value-subway train reaches described
Broadcast leaving from station starts the operating range value of the subway train calculated during distance threshold value；
The correction value of arriving at a station=distance between sites value-in the subway train and the actual range between website will be reached
Reach that the broadcast of arriving at a station starts operating range value-broadcast startup of arriving at a station of the subway train calculated during distance threshold value
Distance threshold value.
4. the method for operating range, its feature are calculated in subway broadcast system according to claim 2 according to train speed
It is：When the distance value leaving from station reaches default threshold value leaving from station, triggering subway broadcast system starts broadcast leaving from station；When described
The distance value that arrives at a station reach it is default arrive at a station threshold value when, triggering subway broadcast system starts broadcast of arriving at a station.
5. the method for operating range, its feature are calculated in subway broadcast system according to claim 4 according to train speed
It is：The threshold value leaving from station is 150m, and the threshold value of arriving at a station is 150m.
6. calculating the method for operating range in subway broadcast system according to claim 1 or 2 according to train speed, it is special
Levy and be：The unit speed according to as defined in TCMS agreements and define the unit and calculate the time.
7. the method for operating range, its feature are calculated in subway broadcast system according to claim 6 according to train speed
It is：The unit calculates the time for 36ms.
8. the method for operating range, its feature are calculated in subway broadcast system according to claim 2 according to train speed
It is：During the actual travel of the subway train, the subway train calculated during the station-arrival of subway train parking
Operating range is reset.
9. a kind of subway broadcast system, it is characterised in that：The subway broadcast system includes arranging with subway by train bus-line
The signal system of car is connected and obtains the velocity amplitude of the subway train operation and use such as any one of claim 1 to 8
The controller of the described method that operating range is calculated according to train speed.
10. subway broadcast system according to claim 9, it is characterised in that：The subway broadcast system also includes passing through
Internal bus and the compartment broadcaster being connected with the controller, the storage device that is connected with the controller.
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Cited By (1)
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| CN113734242A (en) * | 2021-10-13 | 2021-12-03 | 上海电气泰雷兹交通自动化系统有限公司 | Subway train accurate positioning method based on statistical characteristics |
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Address after: 215153 No. 350 Qingchengshan Road, Science and Technology City, Suzhou High-tech Zone, Jiangsu Province Patentee after: SUZHOU HUAQI INTELLIGENT TECHNOLOGY Co.,Ltd. Address before: 215153 No. 350 Qingchengshan Road, Science and Technology City, Suzhou High-tech Zone, Jiangsu Province Patentee before: SUZHOU HUAQI INTELLIGENT TECHNOLOGY Co.,Ltd. |