CN107215355B - The method and subway broadcast system of operating range are calculated according to train speed - Google Patents
The method and subway broadcast system of operating range are calculated according to train speed Download PDFInfo
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- CN107215355B CN107215355B CN201710316546.1A CN201710316546A CN107215355B CN 107215355 B CN107215355 B CN 107215355B CN 201710316546 A CN201710316546 A CN 201710316546A CN 107215355 B CN107215355 B CN 107215355B
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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
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- 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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- Train Traffic Observation, Control, And Security (AREA)
Abstract
The present invention relates in a kind of subway broadcast system according to train speed calculate operating range method, are as follows: (1) define unit calculate the time；(2) it is calculated in the time in each unit, resulting subway train operating range value S is calculated according to thisn=previous calculate resulting subway train traveling value Sn‑1+ current one calculates the velocity amplitude V in the time to calculate 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 with distance value is arrived at a station according to the distance value leaving from station of calculating.Method of the invention can conveniently realize the calculating of subway train operating range value and its correlation by add operation, so as to provide safeguard for the control of subway broadcast system, can be improved the precision of calling out the stops of subway broadcast system.
Description
Technical field
The invention belongs to subway circulation control fields, 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 technique
Currently, the vehicle-mounted broadcasting system in subway can only obtain train from the signal system of subway 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 gives vehicle-mounted broadcasting system only with speed signal, subway vehicle-mounted broadcasting
The master controller of system just needs to calculate the operating range of train from signal system according to the velocity information obtained, and according to
The required distance of starting is broadcasted to control the broadcast leaving from station of starting vehicle-mounted broadcasting and broadcast of arriving at a station.For example, when subway train is driven out to
Starting column need to be controlled when 150 meters of platform (this 150 meters i.e. starting distance of broadcast leaving from station, i.e., broadcast leaving from station start distance threshold value)
Interior broadcast leaving from station, while updating the site information on dynamic map and LCD screen；And when subway train is apart from next stop platform
150 meters of (the starting distance of this 150 meters next platforms of broadcast distances that arrive at a station, that is, broadcast starting distance threshold value of arriving at a station) Shi Ze
Starting need to be controlled to arrive at a station broadcast, while updating the site information in the display and LCD screen of dynamic map.It in this way could be in subway
In the case that the time that distance between sites are not long, platform is stopped is also very short, pass through the accurate starting of broadcast and broadcast of arriving at a station leaving from station
Enough times accurately are reserved to passenger as far as possible, broadcast of especially arriving at a station avoids passenger from having little time to get off or lower mistake
Vehicle.Therefore, existing subway broadcast system there is no it is a kind of can the speed based on train operation and accurately calculate subway train
The method of operating range control vehicle-mounted broadcasting, the problem be subway broadcast system realize accurate control it is urgently to be resolved.
Summary of the invention
The object of the present invention is to provide one kind to be suitable for subway broadcast system, realizes the traveling of subway train with can be convenient
Distance value calculates, and is calculated and is travelled according to train speed in the subway broadcast system provided safeguard with the control for subway broadcast system
The method and subway broadcast system of distance.
In order to achieve the above objectives, the technical solution adopted by the present invention is that:
A kind of method that operating range is calculated according to train speed in subway broadcast system are as follows: when (1) defining unit and calculating
Between；(2) it is calculated in the time in each unit, resulting subway train operating range value S is calculated according to thisn=previous meter
Calculate resulting subway train traveling value Sn-1+ presently described unit calculates the velocity amplitude V in the time to calculate the traveling of subway train
Distance value.
Preferably, start broadcast leaving from station starting distance threshold value and the institute of broadcast leaving from station according to the requirement of the subway train
The actual distance traveled value for stating subway train reaches calculated operating range value when the broadcast starting distance threshold value leaving from station
And correction value leaving from station is calculated, then during the actual travel of the subway train, according to distance value leaving from station=this calculating
Resulting subway train operating range value Sn+ correction value leaving from station calculates between the website that the subway train distance is 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 to start
Arriving at a station for broadcast of arriving at a station and in the subway train and will reach the actual range between website at broadcast starting distance threshold value
Reach the operating range value of the calculated subway train when broadcast of arriving at a station starts distance threshold value and is calculated
It stands correction value, then during the actual travel of the subway train, according to the distance value that arrives at a station=distance between sites value-calculating
The operating range value S of the subway train outnCorrection value arrive at a station to calculate the website that the subway train distance will reach
Between the distance value that arrives at a station.
Preferably, the actual travel of the correction value leaving from station=leaving from station broadcast starting distance threshold value-subway train away from
Operating range value from calculated subway train when reaching the broadcast starting distance threshold value leaving from station；
The correction value of arriving at a station=distance between sites value-is in the subway train and will reach the reality between website
Distance reach it is described arrive at a station broadcast starting distance threshold value when the calculated subway train operating range value-arrive at a station broadcast
Start distance threshold value.
Preferably, when the distance value leaving from station reaches preset threshold value leaving from station, triggering subway broadcast system starting is leaving from station
Broadcast；When the distance value that arrives at a station reach it is preset arrive at a station threshold value when, triggering subway broadcast system starting is arrived at a station broadcast.
Preferably, the threshold value leaving from station is 150m, and the threshold value of arriving at a station is 150m.
Preferably, the unit speed according to as defined in TCMS agreement and define the unit and calculate the time.
Preferably, the unit calculates the time as 36ms.
Preferably, during the actual travel of the subway train, the station-arrival of subway train is calculated when stopping
The operating range of subway train is reset.
The present invention also provides a kind of subway broadcast systems, 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 side above-mentioned for calculating operating range according to train speed
The controller of method.
The subway broadcast system further include the compartment broadcaster being connected by internal bus with the controller,
The storage equipment being connected with the controller.
Due to the above technical solutions, the present invention has the following advantages over the prior art: method of the invention 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 can be improved the essence of calling out the stops of subway broadcast system so as to provide safeguard for the control of subway broadcast system
Degree.
Specific embodiment
The present invention will be further described below with reference to examples.
Embodiment one: a kind of method that operating range is calculated according to train speed in subway broadcast system, mainly include with
Lower two steps:
(1) it defines unit and calculates the time.The effect for defining the unit calculating time is event to be cut into as far as possible the small time
Section calculates the frequency and computational accuracy to improve.When defining unit calculating generally according to unit speed as defined in TCMS agreement
Between.When the unit speed of defined is 1=0.1km/h, i.e., 1=1 meter/36 seconds=1 millimeter/36 milliseconds, therefore can choose 36ms and be
Unit calculates the time, i.e., basic unit of account is calculated.The mesh for defining the unit calculating time is to utilize the smallest time
The multiplying of distance is converted into add operation by interval.
(2) the operating range value of subway train calculates.It is calculated in the time in each unit, i.e., in every 36ms, according to this
Calculate resulting subway train operating range value Sn=previous calculate resulting subway train traveling value Sn-1When+current one calculates
In velocity amplitude V iterate to calculate the operating range value of subway train.It is counted in the 36ms that first unit calculates the time
It is previous to calculate resulting subway train traveling value S when calculationn-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
When (car door changes from opening state to closed state), the operating range of subway train calculated is reset before, and simultaneously
The distance between sites between current site and next website are updated, to avoid calculating the accumulation of error, and are opened again when leaving from station
Begin to calculate.
The above method is by theoretic calculation method: distance S=initial velocity V* time t+1/2at^2 is changed to additional calculation, because
This calculates more convenient and easy.
However, there are still errors for above-mentioned theory calculation method, it is therefore desirable to be modified.Modification method are as follows: 1. base area
The requirement of iron train starts the broadcast leaving from station starting distance threshold value of broadcast leaving from station and the actual distance traveled value of subway train reaches
Calculated operating range value when starting distance threshold value to broadcast leaving from station, and correction value leaving from station is calculated.Then arranged in subway
During the actual travel of vehicle, according to " distance value leaving from station=resulting subway train operating range value the S of this calculatingn+ leaving from station repair
Positive value ", it can accurately 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 distance between sites value finally sailed out of between website, the broadcast of arriving at a station for starting broadcast of arriving at a station is required to open
Dynamic distance threshold value and in subway train and the actual range between website will be reached reach broadcast starting distance threshold of arriving at a station
The operating range value of calculated subway train when value and correction value of arriving at a station is calculated.Then in the actual travel mistake of subway train
Cheng Zhong the, according to " distance value that arrives at a station=distance between sites value-calculated subway train operating range value SnArrive at a station correction value ", come
Calculate the distance value that arrives at a station between the website that subway train distance will reach.Owner can provide each neighbor stations before metro operation
Distance between sites, subway broadcast system can save this data.Required when subway train enters the station every time to be marked with guarantee car door with
The consistency of the position of shield door, so this distance between sites is almost to be fixed and invariable.Subway train accelerates hair during travelling
Life is slowed down and is occurred during entering the station during being driven out to station.Subway after the formal operation of investment is completed in debugging, traction, automatically plus,
Deceleration curve is that comparison is fixed.Therefore above-mentioned correction value leaving from station only needs formally to run the preceding reality according to train with correction value of arriving at a station
Difference between border operating range and calculated operating range can obtain, i.e., " correction value leaving from station=broadcast leaving from station starts range gate
Limit value-subway train actual distance traveled reaches the traveling of calculated subway train when broadcast starting distance threshold value leaving from station
Distance value "；" correction value of arriving at a station=distance between sites value-reaches in subway train and the actual range that will reach between website arrives at a station
The operating range value-of calculated subway train, which is arrived at a station, when broadcast starting distance threshold value broadcasts starting distance threshold value ".Due to
The traction braking system of subway finishes once debugging, the acceleration of train, deceleration curve be substantially it is fixed, so it is leaving from station with arrive at a station
As long as correction value formally travel on solid line and can once decide before formally opening, do not need subsequent to correct again.
When subway train driving is between two stations, if reaching default based on the calculated distance value leaving from station of correction value leaving from station
Broadcast leaving from station start distance threshold value (such as 150m), i.e., distance value leaving from station=this calculates resulting subway train operating range
Value SnWhen+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 preset broadcast starting distance threshold of arriving at a station based on the calculated distance value that arrives at a station of correction value that arrives at a station
It is worth (such as 150m), that is, the distance value that arrives at a station=distance between sites value-calculated subway train operating range value SnIt arrives at a station correction value
When≤150m, triggering subway broadcast system starts arrive at a station broadcast, and the site information in synchronized update dynamic map and LCD screen.
By above method, under specific signaling interface agreement, the signal system of train is with the fixed period to subway
The current speed of broadcast system train, then the vehicle-mounted broadcast system of subway can calculate train driving according to obtained train speed
Distance judges whether to meet the trigger condition of broadcast leaving from station, broadcast of arriving at a station in conjunction with station spacing.
It is above-mentioned according to train speed calculate operating range method realized in subway broadcast system, subway broadcast system packet
Include controller, compartment broadcaster and storage equipment.Controller is connected by train bus-line with the signal system of subway train
It connects, to obtain the velocity amplitude of subway train operation, and to have program above-mentioned according to train speed to execute for operation in controller
The method that degree calculates operating range to calculate train driving distance, and exports control signal according to calculated result.Compartment broadcast dress
It sets and is connected by internal bus with controller, it includes LCD screen, broadcast etc. in each compartment.The control that controller issues
Signal is sent by internal bus to compartment broadcaster, and compartment broadcaster triggers broadcast and synchronized update dynamically accordingly
Site information on figure and LCD screen.Storage equipment is connected with the controller and the phases such as website, the stop spacing of train car operation
Close information.Two controllers can be set in a set of subway broadcast system and be switched to host or slave respectively, and using as host
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 cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of method for calculating operating range according to train speed in subway broadcast system, it is characterised in that: the subway is wide
Broadcast the method that operating range is calculated according to train speed in system are as follows: (1) define unit and calculate the time；(2) in each list
Position calculated in the time, calculated resulting subway train operating range value S according to thisn=previous calculate resulting subway train row
Sail value Sn-1+ presently described unit calculates the velocity amplitude V in the time to calculate the operating range value of subway train；
Start distance threshold value and the subway train according to the broadcast leaving from station that the requirement of the subway train starts broadcast leaving from station
Actual distance traveled value when reaching the broadcast leaving from station starting distance threshold value calculated operating range value and be calculated
Correction value leaving from station, the then during actual travel of the subway train, according to distance value leaving from station=this resulting subway of calculating
Train driving distance value Sn+ correction value leaving from station calculates the distance leaving from station between the website that the subway train distance is 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, starting is required to arrive at a station
Arriving at a station for broadcast and in the subway train and will reach the actual range between website and reach broadcast starting distance threshold value
It is described arrive at a station broadcast starting distance threshold value when the calculated subway train operating range value and be calculated to arrive at a station and repair
Positive value, then it is calculated according to the distance value that arrives at a station=distance between sites value-during the actual travel of the subway train
The operating range value S of the subway trainnCorrection value arrive at a station to calculate between the website that the subway train distance will reach
The distance value that arrives at a station.
2. the method for calculating operating range according to train speed in subway broadcast system according to claim 1, feature
Be: the correction value leaving from station=broadcast leaving from station starting distance threshold value-subway train actual distance traveled reaches described
The operating range value of calculated subway train when broadcast starting distance threshold value leaving from station；
The correction value of arriving at a station=distance between sites value-is in the subway train and will reach the actual range between website
The operating range value-for reaching the calculated subway train when broadcast of arriving at a station starts distance threshold value, which is arrived at a station, broadcasts starting
Distance threshold value.
3. the method for calculating operating range according to train speed in subway broadcast system according to claim 1, feature
Be: when the distance value leaving from station reaches preset 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 preset arrive at a station threshold value when, triggering subway broadcast system starting is arrived at a station broadcast.
4. the method for calculating operating range according to train speed in subway broadcast system according to claim 3, feature
Be: the threshold value leaving from station is 150m, and the threshold value of arriving at a station is 150m.
5. the method for calculating operating range according to train speed in subway broadcast system according to claim 1, feature
It is: defines the unit according to unit speed as defined in TCMS agreement and calculate the time.
6. the method for calculating operating range according to train speed in subway broadcast system according to claim 5, feature
Be: the unit calculates the time as 36ms.
7. the method for calculating operating range according to train speed in subway broadcast system according to claim 1, feature
It is: during the actual travel of the subway train, subway train calculated when the station-arrival of subway train stops
Operating range is reset.
8. a kind of subway broadcast system, it is characterised in that: the subway broadcast system includes being arranged by train bus-line and subway
The signal system of vehicle is connected and obtains the velocity amplitude of the subway train operation and use such as any one of claims 1 to 7
The controller of the method that operating range is calculated according to train speed.
9. subway broadcast system according to claim 8, it is characterised in that: the subway broadcast system further includes by interior
Portion's bus and the compartment broadcaster being connected with the controller, the storage equipment being connected with the controller.
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| CN102004246B (en) * | 2010-09-10 | 2012-08-15 | 浙江大学 | Fault diagnosis and reading speed correction method of antenna included angle deviation of train vehicle-mounted radar speed sensor |
| CN102737504B (en) * | 2012-07-13 | 2014-05-14 | 重庆大学 | Method for estimating bus arrival time in real time based on drive characteristics |
| JP2015219715A (en) * | 2014-05-16 | 2015-12-07 | 日本電信電話株式会社 | Passenger guide system, passenger guide method and passenger guide program |
| CN104608774B (en) * | 2014-12-24 | 2017-07-07 | 北京易华录信息技术股份有限公司 | A kind of method and system that information of arriving at a station is provided in subway entrance to passenger |
| CN105235716B (en) * | 2015-11-03 | 2017-03-08 | 株洲南车时代电气股份有限公司 | A kind of train Full-automatic station-reporting method |
| CN105678036B (en) * | 2016-03-17 | 2018-11-09 | 东南大学 | Measuring method and system of the public transit vehicle in bus station berthing time |
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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. |
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