CN109436039A - A kind of numeric type Multi probe dystopy synchronous acquisition infrared ray train operation malfunction detection system and detection method - Google Patents
A kind of numeric type Multi probe dystopy synchronous acquisition infrared ray train operation malfunction detection system and detection method Download PDFInfo
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- CN109436039A CN109436039A CN201811223100.5A CN201811223100A CN109436039A CN 109436039 A CN109436039 A CN 109436039A CN 201811223100 A CN201811223100 A CN 201811223100A CN 109436039 A CN109436039 A CN 109436039A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/50—Trackside diagnosis or maintenance, e.g. software upgrades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/50—Trackside diagnosis or maintenance, e.g. software upgrades
- B61L27/57—Trackside diagnosis or maintenance, e.g. software upgrades for vehicles or vehicle trains, e.g. trackside supervision of train conditions
Abstract
The invention discloses a kind of numeric type Multi probe dystopy synchronous acquisition infrared ray train operation malfunction detection system and detection methods, belong to railway security monitoring field.The system includes equipment and acquisition station rail edge equipment in acquisition station computer room, equipment includes detection station host, control cabinet and indoor wheel detector signal processing apparatus in acquisition station computer room, and acquisition station rail edge equipment includes 4 wheel detectors, numeric type infrared probe case and rail number of edges word wheel signal processing unit.1# wheel detector passes to indoor wheel detector signal processing apparatus for vehicle signal is crossed, detection station host is transmitted to through control cabinet, detection station host's feedback signal is sent to each numeric type infrared probe and each biography wheel sensor, carried out the acquisition of vehicle signal, and temperature is calculated according to thermometric algorithm, vehicle was determined with the presence or absence of failure, and acquisition end trigger signal is sent after to each component.The invention avoids interference and attenuation problems, reduce difficulty of construction, realize more accurately detection.
Description
Technical field
The invention belongs to railway securities to monitor field, and in particular to a kind of numeric type Multi probe dystopy synchronous acquisition infrared ray
Train operation malfunction detection system and detection method.
Background technique
By the anomalous variation of detection device partly or wholly temperature come the operating status and fault pre-alarming of monitoring device, it is
A kind of common nondestructive inspection means.When train vehicle condition operates normally, typical temperature becomes many mechanical parts of track train
Change and is maintained at the changing rule of identical section or fixation, when train part temperature change is different under normal conditions, usual meaning machine
Vehicle breaks down.
Vehicle axle temperature intelligent detecting system (THDS), it is real using the non-contacting infrared radiation temperature measurement device for installing in-orbit side
When detection operating status under train bearing temperature, can effectively exclude vehicle bearing potential faults in time, pass through in the whole nation
Comprehensive field of track traffic application for many years, becomes an important ring for China railways operational safety security system.
Current THDS belongs to simulation system, and the information transmission between acquisition station rail edge equipment and acquisition station calculator room equipment is complete
Portion uses analog signal.Due to rail side electromagnetic environment complexity, analog signal is vulnerable to interference, and analog signal is transmitted through relatively long distance
Signal-to-noise ratio can decay afterwards.Using simulation system, cable resource is wasted, difficulty of construction is increased, reduces the reliable of system
Property.
Since detection target (track train) speed of service is fast and detection range is extremely close, detection useful signal change frequency is fast
And the duration is short, only realizes infrared detector digitlization in sound end, cannot achieve between probe and wheel detector and more
Signal between a strange land probe is synchronous, and then can not judge to find the specific positioning in train of failure, can not also judge list
The integrality of a probe acquisition information.
Summary of the invention
In view of the problems of the existing technology, the present invention proposes a kind of infrared alignment of numeric type Multi probe dystopy synchronous acquisition
Vehicle operation troubles detection system and detection method, can be complete between IR detection system rail edge equipment and acquisition station calculator room equipment
Portion uses digital signal communication, realizes the signal precise synchronization between the probe of between probe and wheel detector and multiple strange lands.
The numeric type Multi probe strange land synchronous acquisition infrared ray train operation malfunction detection system, including acquisition station machine
Equipment and acquisition station rail edge equipment in room.
Equipment includes detection station host, power supply box, control cabinet and the interior being arranged in cabinet in the acquisition station computer room
Wheel sensor signal processing unit.
The connection of control cabinet one end detects station host, wheel sensor signal processing unit in other end junction chamber；Indoor cart
Wheel sensor signal processing apparatus connects acquisition station rail edge equipment simultaneously.
The acquisition station rail edge equipment includes 4 wheel detectors set gradually along train travel direction, in two iron
Several numeric type infrared probe casees and rail number of edges word wheel signal processing unit of rail two sides and intermediate setting.
Wheel detector is respectively 1# wheel detector, 2# wheel detector, 3# wheel detector and 4# wheel detector,
All wheel detectors are distributed in the inside in same rail road, wherein 1# wheel detector transmits the train information of acquisition
Into indoor wheel detector signal processing apparatus；2# wheel detector, 3# wheel detector and 4# wheel detector connect simultaneously
The number of edges that integrates with word wheel signal processing unit, which is connected with detection station host carries out the intercommunication of signal, and can receive simultaneously
The signal of control cabinet.
The numeric type infrared probe case is perpendicular to the direction of two rails, and all probe boxes are located at same straight line
On, each arrangement one on the outside of every rail, remaining probe box equidistantly distributed is among two rails；It is solid in each probe box
Dingan County fills a numeric type infrared probe and a control box, and control box is connect with numeric type infrared probe；Each numeric type is red
Outer probe is connect with control cabinet and detection station host respectively.
When train passes through, 1# wheel detector starts acquisition train and crosses vehicle signal, passes to indoor wheel detector letter
Number processing unit reaches detection station host by control cabinet, and detection station host sends Multi-path synchronous and starts trigger collection order, until
Control cabinet and each numeric type infrared probe.
Order is transferred to rail number of edges word wheel signal processing unit, 2# wheel detector, 3# wheel detector by control cabinet
With 4# wheel detector start no-delay acquisition vehicle information, and carry out digital conversion, rail number of edges word wheel be transmitted to after packing
Signal processing apparatus is uploaded to detection station host based on TCP/UDP agreement.
After each numeric type infrared probe receives the trigger collection order of detection station host, immediately begins to data and acquire, simultaneously
It is packaged after being AD converted, is uploaded to detection station host.
The present invention proposes a kind of spy of numeric type Multi probe dystopy synchronous acquisition infrared ray train operation malfunction detection system
Survey method, the specific steps are as follows:
Step 1: train is crossed vehicle signal and passes to indoor wheel detector letter by 1# wheel detector when there is train to cross
Number processing unit；
Indoor wheel detector signal processing apparatus is filtered and improves to vehicle signal is crossed, and obtains that treated and crosses vehicle letter
Number；
Step 2: the vehicle signal of crossing of processing is transmitted in detection station host through control cabinet, trigger collection signal is obtained to each
Numeric type infrared probe and rail number of edges word wheel signal processing unit；
Specifically: processed vehicle signal of crossing is transferred to detection station host IO card, and the Cali IO is with interrupt hardware in real time to each
Numeric type infrared probe and rail number of edges word wheel signal processing unit send synchronous, real-time trigger collection signal.
Step 3: numeric type infrared probe and no-delay the synchronizing of rail number of edges word wheel signal processing unit start to process
Data are finally uploaded to detection station host.
Firstly, recycling timing, and timestamp is inserted into data frame with the trigger signal moment for 0 moment；Numeric type is infrared
It pops one's head in and 2# wheel detector, 3# wheel detector and 4# wheel detector is synchronous by acquisition initial time and have timestamp
Data, the custom protocol data based on TCP/UDP agreement be uploaded to detection station host.
Meanwhile numeric type infrared probe uses hard real-time operation, controls gate, baffle etc. by control box and opens.
Step 4: being parsed to all data and after detection station host receives acquired data according to thermometric algorithm
Temperature is calculated, judges whether temperature is greater than alarm threshold value, if so, being considered as failure Realtime Alerts and uploading center；Otherwise, it does not report
It is alert, it stored car data and was uploaded to center.
Temperature computation formula are as follows: TC=(U0×10-25)+kα；
TcBy detection target temperature value, U0For the voltage data received from numeric type infrared probe, k is relatively solid
Fixed parameter is related to current device situation, and α is the numerical value being converted to according to environmental aspect.
It is acquired Step 5: detection station host sent after determining vehicle according to rail sidecar wheel sensor information collected
End trigger signal gives each component.
Specifically: 1# wheel detector is calculated according to the average speed V for plowing vehicle and 100 meters of range abilities by t=
Still no signal after 100/V, then judged that vehicle terminated, at this point, detection station host is by IO card to each numeric type infrared probe, 2# vehicle
Wheel sensor, 3# wheel detector and 4# wheel detector send the acquisition end trigger signal of hardware synchronization.
Step 6: each numeric type infrared probe sends shutdown command to control box, and will probe state, baffle and big gate-shaped
State feeds back to detection station host, and detection station host confirms after receiving information.So far, this is crossed vehicle and terminates, and system reenters
Car state to be crossed.
The advantages and beneficial effects of the present invention are:
1) a kind of, numeric type Multi probe dystopy synchronous acquisition infrared ray train operation malfunction detection system, can effectively avoid
Former simulation system caused interference and attenuation problem in signal transmission.
2) a kind of, numeric type Multi probe dystopy synchronous acquisition infrared ray train operation malfunction detection system is able to achieve simple
Control and signal transmission, reduce cable laying, reduce difficulty of construction.
3) a kind of, numeric type Multi probe dystopy synchronous acquisition infrared ray train operation fault detection method, can be more accurately
The data of each probe and wheel detector are synchronized, realize more accurately detection.
Detailed description of the invention
Fig. 1 is the signal of numeric type Multi probe dystopy synchronous acquisition infrared ray train operation malfunction detection system of the present invention
Figure；
Fig. 2 is infrared ray train operation malfunction detection system numeric type Multi probe strange land of the present invention synchronous acquisition implementation method
Flow chart.
Specific embodiment
Embodiment of the present invention is described further with reference to the accompanying drawing.
A kind of numeric type Multi probe dystopy synchronous acquisition infrared ray train operation malfunction detection system of the present invention, such as Fig. 1 institute
Show, which includes equipment and acquisition station rail edge equipment in acquisition station computer room.
Equipment mainly includes the detection station host F1 being arranged in cabinet, power supply box F4, control in the acquisition station computer room
Case F2, license number antenna, interior wheel detector signal processing apparatus F3 and thunder resisting equipment.
Power supply box F4 provides electricity for equipment in acquisition station computer room and acquisition station rail edge equipment；The connection of the one end control cabinet F2 is visited
Survey station host F1, wheel sensor signal processing unit F3 in other end junction chamber；Indoor wheel detector signal processing apparatus
F3 connects acquisition station rail edge equipment simultaneously.
The acquisition station rail edge equipment includes wheel detector, numeric type infrared probe T, probe box X, rail number of edges word wheel
Signal processing apparatus G1 and rail meter etc..
Wheel detector is respectively 1# wheel detector, 2# wheel detector, 3# wheel detector and 4# wheel detector,
All wheel detectors are distributed in the inside in same rail road, and 1# sensor is typically mounted at apart from 80 meters of probe box or more
Distance, 2# and 3# wheel detector are installed after 3# sensor in the position of the positive and negative 250mm of probe box, 4# sensor, specifically
Position determine according to field condition.Wherein, the train information of acquisition is transmitted to room by armored cable by 1# wheel detector
In interior wheel sensor signal processing unit F3；The latter is converted into input control case F2 after standard, stable TTL signal,
Digital I/O card of the output to detection station host F1 after control cabinet F2 processing.Detector host is furnished with digital I/O card, possesses and is based on
Hard-wired Multi-path synchronous digital controlled signal fan-out capability.Muti-piece network interface card is configured simultaneously, rail number of edges word can be received simultaneously
The data that type probe and rail sideband digital signal processing unit G1 are uploaded based on cable, and can be assisted by cable based on TCP/UDP
It discusses to rail number of edges font probe and rail number of edges word wheel signal processing unit G1 configuration parameter and issues control instruction.
The rail number of edges font wheel detector intelligent treatment device and 2# wheel detector, 3# wheel detector and 4# vehicle
Wheel sensor is connected, and is connected by cable with control cabinet F2, is connected by cable with detection station host F1；Outdoor rail number of edges word
Wheel signal processing unit G1 maintains to work normally physical environment, such as vibration, temperature, humidity for 2#, 3#, 4# wheel detector
Deng.According to live actual condition, rail number of edges word wheel signal processing unit G1 can be installed with clamp rail, can also be fixed on rail
Road two sides can also be mounted between two rails, two sleepers in the form of under casing.Rail number of edges word wheel signal processing unit G1 to 2#,
After the digitlization of 3#, 4# wheel sensor signal, detection station host F1 is uploaded to based on TCP/UDP agreement.Rail number of edges word wheel letter
The all operationss of number processing unit G1 are hardware based real-time operations, and time height is real-time, and time delay is few, and it is precisely controllable；
The numeric type infrared probe case X is perpendicular to the direction of two rails, and all probe box X are located at same straight line
On, each arrangement one on the outside of every rail, remaining probe box X equidistantly distributed is among two rails；Each probe box X
For fixing a numeric type infrared probe T, and the physical environment for providing damping, probe being maintained to work normally, probe box X are furnished with
It is fixed to provide hot target for the accurate thermometric of numeric type infrared probe T for gate, baffle and hot target.One is also respectively equipped in each probe box X
A control box, control box are connected with the other equipment in power supply box F4, numeric type infrared probe T and probe box respectively.Control box
It introduces after power supply box power supply all the way and removes the snow after filtering, pressure stabilizing, voltage are converted into gate, hot target, baffle and blowing in probe box
Device power supply；Meanwhile box and numeric type infrared probe T-phase company are controlled, the control command that infrared probe is sent is received, control is big
Door, hot target, baffle, blowing snow-removing device movement；Furthermore it controls box to believe the simulations such as big door state, hot target temperature, baffle temperature
It is uploaded to digital infrared probe after number simple process and carries out digitized processing.
The numeric type infrared probe T is based on FPGA design, the EP4C series of preferably ALTERA, infrared detector used
Using diversified forms such as unit/polynary/linear arrays, photon type or thermosensitive type are selected.By detecting station host F1 in cable receiving chamber
The trigger signal sent with control cabinet F2 is communicated by cable with detection station host F1.Detector host F1 can pass through
Cable modifies probe parameter；Receive infrared detector signal, the shell temperature signal, target temperature, baffle temperature of the acquisition of numeric type infrared probe
The data such as degree, big door state can also issue multiple control order to probe by cable；Aforesaid operations process is all hardware reality
When operate.Infrared probe includes: insertion heading, verification, insertion timestamp to the packing processing of data.The time being wherein inserted into
Stamp adds up circulation timing since triggering, uploads together to data time collected with data.
Rail meter is mainly used to that probe box X and rail number of edges word wheel signal processing unit G1 is fixedly mounted.
When train passes through, 1# wheel detector starts acquisition train and crosses vehicle signal, passes to indoor wheel detector letter
Number processing unit reaches the IO card of detection station host by control cabinet, and acquisition station host computer PCI interrupts hard real-time operation, vertical
It sends Multi-path synchronous and starts trigger collection order, until rail number of edges font probe and rail number of edges word wheel signal processing unit G1.
Order is transferred to rail number of edges word wheel signal processing unit G1,2# wheel detector, 3# wheel-sensors by control cabinet
Device and 4# wheel detector start no-delay acquisition vehicle information, rail number of edges font wheel detector intelligent treatment device is to 2#
The signal of wheel detector, 3# wheel detector and 4# wheel detector is filtered, determines, and carries out digital conversion, signal
Processing, is transmitted to rail number of edges word wheel signal processing unit after packing, be uploaded to detection station host based on TCP/UDP agreement.
After each numeric type infrared probe receives the trigger collection order of detection station host, immediately begins to data and acquire, simultaneously
It is packaged after being AD converted, detection station host is uploaded to by cable.
Using the implementation method of numeric type Multi probe dystopy synchronous acquisition infrared ray train operation malfunction detection system, such as scheme
Shown in 2, the specific steps are as follows:
Step 1: train is crossed vehicle signal and passes to indoor wheel detector letter by 1# wheel detector when there is train to cross
Number processing unit；
When waiting car state, when there is train to cross, train was started vehicle signal and transmitted system by 1# wheel detector
Indoor wheel detector signal processing apparatus in acquisition station computer room, indoor wheel detector signal processing apparatus are believed vehicle is crossed
It number is filtered and improves, obtain that treated crosses vehicle signal；Processed vehicle signal of crossing is transferred to detection station host IO card, IO
Cali issues Multi-path synchronous trigger collection signal with interrupt hardware in real time.
Step 2: the vehicle signal of crossing of processing is transmitted in detection station host through control cabinet, trigger collection signal is obtained to each
Numeric type infrared probe and rail number of edges word wheel signal processing unit；
Specifically: processed vehicle signal of crossing is transferred to detection station host, and acquisition station host computer interrupt hardware is located in real time
Reason train is initial to cross vehicle signal, while detecting the Hardware I/O board of station host, to each digital infrared probe and rail number of edges word
Wheel signal processing unit sends the synchronous, trigger signal of acquisition beginning in real time.
Step 3: numeric type infrared probe and no-delay the synchronizing of rail number of edges word wheel signal processing unit start to process
Data are finally uploaded to detection station host.
Acquisition starting trigger signal after, passed through in probe box immediately using hard real-time operation be put into control box control gate,
Baffle etc. is opened, while each probe and no-delay the synchronizing of rail number of edges word wheel signal processing unit start data acquisition, AD
Conversion and data packing processing recycle timing, and timestamp is inserted into data frame, rail side with the trigger signal moment for 0 moment
Probe and rail number of edges word wheel signal processing unit can be ignored because time difference is extremely short caused by cable length.Infrared probe and
And rail number of edges word wheel signal processing unit will acquire synchronous and with timestamp the data of initial time, is based on by cable
The custom protocol data of tcp or udp agreement are uploaded to acquisition station computer room host.
Step 4: being parsed to all data and after detection station host receives acquired data according to thermometric algorithm
Temperature is calculated, judges whether temperature is greater than alarm threshold value, if so, being considered as failure Realtime Alerts and uploading center；Otherwise, it does not report
It is alert, it stored car data and was uploaded to center.
Temperature computation formula are as follows: TC=(U0×10-25)+kα；
TcBy detection target temperature value, U0For the voltage data received from numeric type infrared probe, k is relatively solid
Fixed parameter is related to current device situation, and α is the numerical value being converted to according to environmental aspect.
It is acquired Step 5: detection station host sent after determining vehicle according to rail sidecar wheel sensor information collected
End trigger signal gives each component.
Specifically: 1# wheel detector is calculated according to the average speed V for plowing vehicle and 100 meters of range abilities by t=
Still no signal after 100/V, then judged that vehicle terminated, at this point, detection station host is by IO card to each numeric type infrared probe, 2# vehicle
Wheel sensor, 3# wheel detector and 4# wheel detector send the acquisition end trigger signal of hardware synchronization.
Step 6: each numeric type infrared probe sends shutdown command to control box, and will probe state, baffle and big gate-shaped
State feeds back to detection station host, and detection station host confirms after receiving information.So far, this is crossed vehicle and terminates, and system reenters
Car state to be crossed.
Each numeric type infrared probe and rail number of edges word wheel signal processing unit terminate in the acquisition that detection station host sends
After trigger command, the end of hard real-time synchronization is acquired, and probe closes the order such as gate and baffle as control box is sent, and then will be visited
Head state, baffle and big door state feedback, which are sent, can detect station host, and detection station host confirms after receiving information.So far, this
Crossing vehicle terminates, and system, which reenters, waited car state.
Claims (6)
1. a kind of numeric type Multi probe dystopy synchronous acquisition infrared ray train operation malfunction detection system, which is characterized in that including
Equipment and acquisition station rail edge equipment in acquisition station computer room；
Equipment includes the detection station host being arranged in cabinet, power supply box, control cabinet and indoor wheel in the acquisition station computer room
Sensor signal processing unit；
The connection of control cabinet one end detects station host, wheel sensor signal processing unit in other end junction chamber；Indoor wheel passes
Sensor signal processing unit connects acquisition station rail edge equipment simultaneously；
The acquisition station rail edge equipment includes 4 wheel detectors set gradually along train travel direction, in two rails two
Several numeric type infrared probe casees and rail number of edges word wheel signal processing unit of side and intermediate setting；
Wheel detector is respectively 1# wheel detector, 2# wheel detector, 3# wheel detector and 4# wheel detector, is owned
Wheel detector is distributed in the inside in same rail road；
The numeric type infrared probe case is perpendicular to the direction of two rails, and all probe boxes are located along the same line, often
Each arrangement one on the outside of rail, remaining probe box equidistantly distributed is among two rails；Fixed peace in each probe box
A numeric type infrared probe and a control box are filled, control box is connect with numeric type infrared probe；Each infrared spy of numeric type
Head is connect with control cabinet and detection station host respectively；
When train passes through, 1# wheel detector starts acquisition train and crosses vehicle signal, passes at indoor wheel sensor signal
Device is managed, reaches detection station host by control cabinet, detection station host sends Multi-path synchronous and starts trigger collection order, until control
Case and each numeric type infrared probe；
Order is transferred to rail number of edges word wheel signal processing unit, 2# wheel detector, 3# wheel detector and 4# by control cabinet
Wheel detector start no-delay acquisition vehicle information, and carry out digital conversion, rail number of edges word wheel signal be transmitted to after packing
Processing unit is uploaded to detection station host based on TCP/UDP agreement；
After each numeric type infrared probe receives the trigger collection order of detection station host, immediately begins to data and acquire and carry out
It is packaged after AD conversion, is uploaded to detection station host.
2. a kind of numeric type Multi probe dystopy synchronous acquisition infrared ray train operation fault-finding system as described in claim 1
System, which is characterized in that the train information of acquisition is transmitted to indoor wheel detector signal processing by the 1# wheel detector
In device；2# wheel detector, 3# wheel detector and 4# wheel detector connect rail number of edges word wheel signal processing dress simultaneously
Set, the device with detection station host be connected progress signal intercommunication, and simultaneously can reception control box signal.
3. being based on a kind of numeric type Multi probe dystopy synchronous acquisition infrared ray train operation fault-finding system described in claim 1
The train fault detection method of system, which is characterized in that specific step is as follows:
Step 1: train is crossed vehicle signal and passed at indoor wheel sensor signal by 1# wheel detector when there is train to cross
Manage device；
Step 2: the vehicle signal of crossing of processing is transmitted in detection station host through control cabinet, trigger collection signal is obtained to each number
Type infrared probe and rail number of edges word wheel signal processing unit；
Step 3: numeric type infrared probe and no-delay the synchronizing of rail number of edges word wheel signal processing unit start to process number
According to, be finally uploaded to detection station host；
Firstly, recycling timing, and timestamp is inserted into data frame with the trigger signal moment for 0 moment；Numeric type infrared probe
And 2# wheel detector, 3# wheel detector will acquire synchronous and with timestamp the number of initial time with 4# wheel detector
According to the custom protocol data based on TCP/UDP agreement are uploaded to detection station host；
Meanwhile numeric type infrared probe uses hard real-time operation, controls gate by control box and baffle is opened；
Step 4: being parsed to all data and being calculated according to thermometric algorithm after detection station host receives acquired data
Temperature, judges whether temperature is greater than alarm threshold value, if so, being considered as failure Realtime Alerts and uploading center；Otherwise, it does not alarm,
It stored car data and was uploaded to center；
Temperature computation formula are as follows: TC=(U0×10-25)+kα；
TcBy detection target temperature value, U0For the voltage data received from numeric type infrared probe, k is relatively-stationary
Parameter is related to current device situation, and α is the numerical value being converted to according to environmental aspect；
Step 5: detection station host, which sent acquisition after determining vehicle according to rail sidecar wheel sensor information collected, to be terminated
Trigger signal gives each component；
Step 6: each numeric type infrared probe sends shutdown command to control box, and will pop one's head in state, baffle and big door state are anti-
It feeds and detects station host, detection station host confirms after receiving information；So far, this is crossed vehicle and terminates, and system, which reenters, to be waited
Car state.
4. a kind of numeric type Multi probe dystopy synchronous acquisition infrared ray train operation fault-finding side as claimed in claim 3
Method, which is characterized in that interior wheel detector signal processing apparatus described in step 1 is filtered and adjusts to vehicle signal is crossed
Reason obtains that treated and crosses vehicle signal.
5. a kind of numeric type Multi probe dystopy synchronous acquisition infrared ray train operation fault-finding side as claimed in claim 3
Method, which is characterized in that the step two specifically: processed vehicle signal of crossing is transferred to detection station host IO card, the Cali IO
It is sent in real time to each numeric type infrared probe and rail number of edges word wheel signal processing unit with interrupt hardware and synchronizes, adopts in real time
Collect trigger signal.
6. a kind of numeric type Multi probe dystopy synchronous acquisition infrared ray train operation fault-finding side as claimed in claim 3
Method, which is characterized in that the step five specifically: 1# wheel detector plowed the average speed V and 100 meters of fortune of vehicle according to this
Row distance calculates the still no signal after t=100/V, then judges that vehicle terminated, at this point, detection station host is by IO card to each number
The acquisition that font infrared probe, 2# wheel detector, 3# wheel detector and 4# wheel detector send hardware synchronization terminates to touch
It signals.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111731352A (en) * | 2020-06-28 | 2020-10-02 | 杭州海康威视数字技术股份有限公司 | Method and device for determining train passing end |
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