CN107084747A - A kind of station track based on NFC detects car kilometer drift correction system and method with main line track - Google Patents
A kind of station track based on NFC detects car kilometer drift correction system and method with main line track Download PDFInfo
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- CN107084747A CN107084747A CN201710355283.5A CN201710355283A CN107084747A CN 107084747 A CN107084747 A CN 107084747A CN 201710355283 A CN201710355283 A CN 201710355283A CN 107084747 A CN107084747 A CN 107084747A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
Abstract
Car kilometer drift correction system and method is detected the invention discloses a kind of station track based on NFC and main line track, label NFC device including the mileage update information that is stored with, the recognition NFC device for reading label NFC device and detection computer, described label NFC device be installed on the main track of train rail at station track conversion, described recognition NFC device is installed on track detection vehicle, and described detection computer is installed on track detection vehicle and communicates to connect recognition NFC device.The technical effects of the invention are that, it make use of near-field communication technology to carry out local mileage correction, not only recognition capability is strong, is swift in response, and because near-field communication propagation distance is short, so antijamming capability is stronger.Can in real time correct station track and to introduce the mileage deviation that causes as main track, be wireline inspection it is complete after, the mileage drift correction carried out according to detection data lays the first stone.Mitigate follow-up workload.
Description
Technical field
Car kilometer drift correction system and method is detected the present invention relates to a kind of station track based on NFC and main line track.
Background technology
At present, the most track checking car of China is passive delivery, and track checking car can be suspended on visitor when wireline inspection
Transport last vehicle of train.Passenger train can often pass through from the station track of station, therefore, sometimes by detection generation detection data except
Include the detection data that may also contain outside the data on main track circuit on station track track.Currently, without a set of detecting system
Station track station track and main line stock in detection process can be distinguish between as shown in figure 1, this will produce the influence of two aspects；
1) state of main line stock is evaluated with the detection data on station track, causes evaluation not to be inconsistent with actual conditions；
2), instead of the length of main line stock, the mileage of each sampled point on main track behind station can be caused with the length of station track station track
Deviation.
The mileage calibrating mode of the rail detection system of current China mainly has three kinds, manually puts mileage mode, GPS
Mileage automatic Proofreading mode and the automatic Proofreading mode based on RFID.
Manually putting mileage is observed by mileage board of the staff in train journey to along, in track checking car
Run to manual correction mileage at certain specified point.The problem of this method, is：
1) weather reason may cause staff can not see the mileage on mileage board clearly.
2) train running speed is too fast, it is also possible to cause staff can not see mileage board clearly.
3) all by mileage is manually corrected, making staff, over-burden.
GPS mileage auto-collations are to have used gps satellite alignment system, need the mileage position corrected to believe by advance
Breath storage is into system database, and detecting system is in real time contrasted the record in current GPS location information and date storehouse, such as
Fruit is found to meet, and circuit mileage information corresponding in this data storehouse is just sent to detecting system, the mileage of the point is corrected
Position.
Which has following advantage:
1) it is more stable, as long as can be worked well under the good environment of satellite signal receiving.
2) precision is higher, can meet the required precision of track detection vehicle.
Shortcoming has：
1) when two lines road is parallel or intersects, it may occur that GPS point in nearby lines is mistaken for the GPS on current line
Check point.
2) the satellite signal receivings such as subway, tunnel less than environment in the system can not work.
The content of the invention
The present invention proposes a kind of differentiation track station track, the local mileage update the system of main track and method, logical using near field
Letter technology introduces station track as main track caused mileage deviation to correct.
In order to realize above-mentioned technical purpose, the technical scheme is that,
A kind of station track based on NFC detects car kilometer drift correction system, including the mileage amendment that is stored with main line track
The label NFC device of information, the recognition NFC device for reading label NFC device and detection computer, described label NFC
Equipment be installed on the main track of train rail at station track conversion, described recognition NFC device is installed on track detection vehicle, described
Detection computer be installed on track detection vehicle and communicate to connect recognition NFC device.
A kind of described station track based on NFC detects car kilometer drift correction system, described label NFC with main line track
Equipment at least includes two, and is respectively arranged at the main track of train rail to station track and station track to the conversion of main track.
A kind of described station track based on NFC detects car kilometer drift correction system with main line track, in addition to for feeling
Track detection vehicle translational speed is answered to judge track detection vehicle speed sensing device whether out of the station and for ejecting and retracting
Label NFC device in order to distinguish the device for ejecting that NFC device is read out, described speed sensing device be arranged at main track
Along train rail at station track conversion, label NFC device is fixed with described device for ejecting, and receiving velocity pick-up
Label NFC device is ejected to approach the recognition NFC device on track detection vehicle during the signal that device is sent, or withdraws label
NFC device is to store.
A kind of station track based on NFC detects car kilometer deviation correction method with main line track, comprises the following steps：
Step 1, train rail main track the label NFC device of the mileage update information that is stored with is set at station track conversion,
The recognition NFC device for being used to read label NFC device and detection computer for communicating connection are set on track detection vehicle；
Step 2, when track detection vehicle run to main track go forward side by side at station track conversion upline when, recognition NFC device reads mark
The mileage update information in NFC device is signed, and mileage update information is transmitted to detection computer；
Step 3, the mileage update information of acquisition and current mileage record are replaced by detection computer, to realize to this
The mileage of point is corrected in real time.
A kind of described station track based on NFC detects car kilometer deviation correction method, described step 1 with main line track
In, at least provided with two label NFC devices, and be respectively arranged in the main track of train rail to station track and station track turning to main track
Change place.
A kind of described station track based on NFC detects car kilometer deviation correction method, described step 1 with main line track
In, be additionally included in main track be provided for the speed that sense detects car translational speed along train rail at station track conversion
Sensing device, and be provided for ejecting at label NFC device and retraction label NFC device is entered in order to distinguish NFC device
In the step of device for ejecting that row is read, described step 2, in addition to pass through speed sensing device detection track detection vehicle movement
Speed, and the recognition NFC device on track detection vehicle is approached by device for ejecting to eject label NFC device, or withdraw mark
Sign the step of NFC device is to store.
A kind of described station track based on NFC detects car kilometer deviation correction method, described step 2 with main line track
In, detect track detection vehicle translational speed to judge whether track detection vehicle is out of the station, specifically includes by speed sensing device
Following steps：
Speed sensing device carries out velocity measuring to the track detection vehicle in traveling, when track detection vehicle runs to main track extremely
When decelerating to default velocity interval while at the conversion of station track, then it is judged as that track detecting pulls in, and by home signal
Send to device for ejecting, otherwise do not send signal；Accelerate while track detection vehicle is run at station track to the conversion of main track
During to default velocity interval, then it is judged as that track detection vehicle is outbound, and exit signal is sent to device for ejecting, does not otherwise send out
The number of delivering letters.
A kind of described station track based on NFC detects car kilometer deviation correction method, described step 2 with main line track
In, when device for ejecting receives home signal, then the ejection of label NFC device is come close to the recognition NFC on track detection vehicle
Equipment, label NFC device when device for ejecting receives exit signal, then withdrawn to store.
The technical effects of the invention are that, it make use of near-field communication technology to carry out local mileage correction, not only recognize energy
Power is strong, is swift in response, and because near-field communication propagation distance is short, so antijamming capability is stronger.It can correct station track in real time
Introduce the mileage deviation that causes as main track, be wireline inspection it is complete after, the mileage drift correction carried out according to detection data is laid
Basis.Mitigate follow-up workload.
Brief description of the drawings
Fig. 1 is that station track station track detects that mileage influence represents figure in data on track detection vehicle；
Fig. 2 is the workflow schematic diagram of the local mileage update the system of the present invention；
Fig. 3 is the structure principle chart of the local mileage update the system；
Fig. 4 is the composition structure chart of the local mileage update the system；
Fig. 5 is the concrete structure diagram of the local mileage update the system.
Embodiment
Present invention utilizes near-field communication (NFC, Near Field Communication) technology realize to railway station track-
Mileage at main track, flex point A, B two of main track-station track is identified, as shown in Figure 1.
Near-field communication (NFC) is a kind of contactless wireless communication technology of short distance, passes through the electromagnetism sense of wireless frequency
The mode that should be coupled is transmitted, and make use of load modulation function.NFC working frequency range is 13.56MHZ, and transmission speed has
Tri- kinds of 106Kbps, 212Kbps, 424Kbps, in theory up to 1Mbps.Effective transmission of communication can also lead in 15 centimetres
Cross and expand to several tens cm.
NFC is compared with RFID technique, and NFC can realize bi-directional device peer to peer connection communication truly, transmission distance
From shorter, lighter, safer, more rapid wireless connection can be provided, NFC has higher bandwidth and lower energy consumption.
The ability of anti-outer signals interference is stronger, it is adaptable to the required precision of track detecting mileage correction.
Near-field communication technology is mainly used in gate inhibition's control, traffic/activity ticket checking, mobile payment or by two branch at present
Hold NFC linking of devices carry out point-to-point network data transmission in terms of.
NFC operation principle is：Induction type card reader, icah wavw and point-to-point are combined on single chip
Function.By radiofrequency signal automatic identification target and related data can be obtained in the spacing of several tens cm, without artificial dry
In advance；The connection of cable is not needed between any two equipment, it is possible to which realization is in communication with each other, and can be met any two and wirelessly be set
Information between standby is exchanged, access to content and service are exchanged.
NFC has three kinds of mode of operations：Mode card, ad hoc mode, card reader pattern
A) mode card:By the equipment simulating with NFC function into a contactless card.Under the pattern, card can lead to
Cross the RF domains of card reader to power, no battery can work.In the pattern, NFC recognizing apparatus gathers number from label NFC device
According to then the data transfer collected is handled into application processing system.
B) ad hoc mode：By two linking of devices with NFC function, point-to-point data transfer is realized.
C) card reader pattern：Used as card reader, corresponding information is obtained from electronic tag.
As shown in Fig. 1,2,3 and 4, the general principle of local mileage critique system of the invention is as follows：
Label NFC device is set up to 2 points of A, B as shown in Figure 1, i.e. track main track-station track, two of station track-main track and turned
By track at point, recognition NFC device is placed on track checking car on the interior wall for setting up label NFC device side, if sensing ejection
Device, acceleration, the deceleration of sensor sensing train, when decelerating in certain speed range, automatic decision will enter the station (corresponding
At Fig. 1 A points), sensing device for ejecting will distinguish NFC device ejection and (ensure labeling apparatus in effective 15 centimetres of read range
It is interior), recognition NFC device sends the RF radiofrequency fields for supporting communication with 13.56MHZ frequency range, and sends order data to label
The information such as default mileage are returned to recognition NFC device by NFC device, label NFC device by loading modulation technique.Recognition
NFC device receives after mileage information data being transferred to detection computer through RS-232 or RS-485 interfaces, as shown in Fig. 2
Mileage information is directly inputted rail detection system by detection computer, and detecting system can in real time be corrected to the mileage of the point.
The label NFC device set up when train is outbound (at Fig. 1 B points) enters the read range of recognition NFC device, repeats above-mentioned flow
The mileage of B points is corrected in real time.After train accelerates to certain speed, inductive pick-up is passed order withdrawal back and set equipped with recognition NFC
Standby device for ejecting.Complete track station track, a mileage drift correction for main track.
The label NFC device used in the present invention is the 2nd class label that NFC Forum are defined, and it is marked based on ISO14443A
Standard, can inside save as 48 bytes with read-write operation, extend to 2K bytes, communication speed is 106Kbit/s, can directly be used
Several byte write-in mileage informations rather than card number information.The interface distinguished between NFC device and detection computer is to use RS-
The interface of 232 or RS-485 types.
As shown in Fig. 2 the workflow schematic diagram of the local mileage update the system of the present invention, its job step is as follows：
Step 1, the information such as the mileage of the point are prestored in the label NFC device set up at flex point.
Step 2, when track detection vehicle is run at the point, recognition NFC device ejection, label enters reading range, known
Read equipment and send RF radiofrequency fields, label NFC device obtains electricity by RF, and the information transmissions such as the mileage prestored are gone back.
Step 3, NFC device is distinguished by the information of acquisition through wire transmission (if computer has NFC function or can be wirelessly)
The detection computer put to track detection vehicle in-car.
Step 4, the bit stream information of acquisition is transferred to the rail detection system backstage of operation, automatic turning by detection computer
Mileage information is translated into, and realization is corrected in real time to the mileage of the point.
By above step, we can correct the mileage deviation that station track is introduced as main track and is caused in real time, can be line
After road has been detected, the mileage drift correction carried out according to detection data lays the first stone.Mitigate follow-up workload.
The advantage of NFC technique is, a chipset and induction type card reader, icah wavw and point-to-point function,
Three models can mutually phase transformation, mileage information is in the event of change can be in the label NFC device that has set on follow-up circuit
Information be updated, sustainable use.
Claims (8)
1. a kind of station track based on NFC detects car kilometer drift correction system with main line track, it is characterised in that including being stored with
The label NFC device of mileage update information, the recognition NFC device for reading label NFC device and detection computer, it is described
Label NFC device be installed on the main track of train rail at station track conversion, described recognition NFC device is installed on track detection vehicle
On, described detection computer is installed on track detection vehicle and communicates to connect recognition NFC device.
2. a kind of station track based on NFC according to claim 1 detects car kilometer drift correction system with main line track, its
It is characterised by, described label NFC device at least includes two, and is respectively arranged in the main track of train rail to station track and station
At line to the conversion of main track.
3. a kind of station track based on NFC according to claim 2 detects car kilometer drift correction system with main line track, its
It is characterised by, in addition to detects car translational speed to judge velocity pick-up that whether track detection vehicle is out of the station for sense
Device and for ejecting and retracting label NFC device in order to distinguishing the device for ejecting that NFC device is read out, described speed
Sensing device be arranged at main track along train rail at station track conversion, label NFC is fixed with described device for ejecting and is set
It is standby, and eject to approach on track detection vehicle by label NFC device when receiving the signal that speed sensing device is sent
NFC device is distinguished, or withdraws label NFC device to store.
4. a kind of station track based on NFC detects car kilometer deviation correction method with main line track, it is characterised in that including following step
Suddenly：
Step 1, train rail main track the label NFC device of the mileage update information that is stored with is set at station track conversion, it is in-orbit
The recognition NFC device for being used to read label NFC device and detection computer for communicating connection are set on road detection car；
Step 2, when track detection vehicle run to main track go forward side by side at station track conversion upline when, recognition NFC device reads label
Mileage update information in NFC device, and mileage update information is transmitted to detection computer；
Step 3, the mileage update information of acquisition and current mileage record are replaced by detection computer, to realize to the point
Mileage is corrected in real time.
5. a kind of station track based on NFC according to claim 4 detects car kilometer deviation correction method with main line track, its
It is characterised by, in described step 1, at least provided with two label NFC devices, and is respectively arranged in the main track extremely station of train rail
At line and station track to the conversion of main track.
6. a kind of station track based on NFC according to claim 5 detects car kilometer deviation correction method with main line track, its
It is characterised by, in described step 1, is additionally included in along the train rail at Zheng Xian station track conversions and is provided for sense
The speed sensing device of car translational speed is detected, and is provided at label NFC device ejecting and retraction label NFC device
In the step of in order to distinguish device for ejecting that NFC device is read out, described step 2, in addition to filled by velocity pick-up
Detection track detection vehicle translational speed is put, and is approached by device for ejecting with ejecting label NFC device on track detection vehicle
NFC device is distinguished, or withdraws the step of label NFC device is to store.
7. a kind of station track based on NFC according to claim 6 detects car kilometer deviation correction method with main line track, its
It is characterised by, in described step 2, detects track detection vehicle translational speed to judge track detection vehicle by speed sensing device
It is whether out of the station, specifically include following steps：
Speed sensing device carries out velocity measuring to the track detection vehicle in traveling, when track detection vehicle runs to main track to station track
Conversion at while when decelerating to default velocity interval, then be judged as that track detecting pulls in, and home signal is sent
To device for ejecting, signal is not otherwise sent；Accelerated to while track detection vehicle is run at station track to the conversion of main track pre-
If velocity interval when, then be judged as that track detection vehicle is outbound, and exit signal is sent to device for ejecting, otherwise do not send letter
Number.
8. a kind of station track based on NFC according to claim 7 detects car kilometer deviation correction method with main line track, its
It is characterised by, in described step 2, when device for ejecting receives home signal, then comes the ejection of label NFC device close to rail
Recognition NFC device on road detection car, label NFC device when device for ejecting receives exit signal, then withdrawn to store.
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| CN201710355283.5A CN107084747A (en) | 2017-05-19 | 2017-05-19 | A kind of station track based on NFC detects car kilometer drift correction system and method with main line track |
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| CN201710355283.5A CN107084747A (en) | 2017-05-19 | 2017-05-19 | A kind of station track based on NFC detects car kilometer drift correction system and method with main line track |
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Application publication date: 20170822 |