CN102874272B - Derail detection controller and derail judgment method - Google Patents
Derail detection controller and derail judgment method Download PDFInfo
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- CN102874272B CN102874272B CN201210390833.4A CN201210390833A CN102874272B CN 102874272 B CN102874272 B CN 102874272B CN 201210390833 A CN201210390833 A CN 201210390833A CN 102874272 B CN102874272 B CN 102874272B
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Abstract
The invention relates to a derail detection controller and a derail judgment method. The derail detection controller comprises a control panel, a data acquisition card and a bus, wherein the data acquisition card comprises a bus interface, at least thirteen input/output channels and ten terminals; the control panel comprises a key used for controlling start and stop of AD and read-write allowance of a serial port, a key used for controlling start and stop of AD and data acquisition and storage allowance, at least eight indicating lamps used for monitoring whether an output signal of the data acquisition card exceeds a threshold value, and at least ten terminals used for data acquisition; an input/output (I/O) input channel is connected with the keys; the I/O output channel is connected with the indicating lamps; and the terminals of the data acquisition card are connected with the terminals of the control panel. By the derail detection controller, the data of a train detection system can be acquired, the operating state parameters of the train are provided, the running state of the train can be judged by analysis on the data, and early warning can be given when a derail tendency possibly occurs.
Description
Technical field
The present invention relates to a kind of derailing detection control device and derailing determination methods.
Background technology
Safe driving is the basis of railway operation, and the state of the art of train and track determines the safety of wheel track.Travelled by vehicle state of the art accounts for main portion in wheel track safety, how to ensure that tens of thousands of vehicles keeps good state of the art in the very long stroke running hundreds of thousands of kilometer, vehicle is energy Timeliness coverage when there is performance of running stability problem, Resolving probiems before derailment accident occurs, it is the vital task that various countries' technical personnel faces.For a long time, countries in the world railway interests ensures that wheel track safety has all dropped into a large amount of funds and studied and carry out technical renewal transformation, scientific research personnel has also carried out a large amount of derailing theoretical and experimental studies and has achieved some achievements, but due to the difficulty of derail the complex nature of the problem and research, until today, this problem was solved not yet well.The reason of derailment accident is often difficult to find out, so the most actv. way of vehicle derailing can be avoided now to carry out early warning exactly.
Heavy haul railway occupies an important position in national economy, and heavy haul railway empty-car operation accelerating is the advantageous methods increasing heavy haul railway transport power and work efficiency; But easily derailment accident occurs after empty-car speed-raising, in order to prevent the generation of this type of situation, the means that present stage takes are running velocitys that its running velocity is usually less than at full load when train zero load returns.But do like this and can not guarantee that train derailment accident does not occur, and also reduce the work efficiency of vehicle.
Summary of the invention
The object of the invention is to design a kind of derailing detection control device and derailing determination methods, the data of train detection systems can be gathered, the running state parameter of train is provided, by analyzing these data, we can judge the motoring condition of train, also can carry out early warning when there being derailing tendency, thus avoid the generation of derailment accident.
For achieving the above object, the invention provides a kind of derailing detection control device and derailing determination methods.Derailing detection control device comprises control panel, data collecting card and bus.Described data collecting card and computing machine are full-duplex communications; Described data collecting card and described control panel are simplexs for AD function, are half-duplex operations for I/O function; Described control panel comprises the button allowed for the start and stop of control AD, the read-write of serial ports, for the start and stop of AD, the button of Data acquisition and storage permission, with the whether indicator lamp of superthreshold and the terminal for data acquisition of the output signal for monitoring data collection card, described threshold value is to prevent data from overflow, thus cannot correctly processing data and judge train derailing tendency; I/O input channel connects button, and I/O delivery channel connects indicator lamp, and the terminal of data collecting card connects the terminal of control panel.
Preferably, the data that derailing detection control device also comprises for monitoring data collection card read indicator lamp, data for monitoring data collection card write indicator lamp, for the indicator lamp of the data acquisition of monitoring data collection card, the indicator lamp that the button allowed for the read-write of the start and stop of control AD, serial ports is read with the data for monitoring data collection card, the indicator lamp write for the data of monitoring data collection card are connected, and the button allowed for the start and stop of AD, Data acquisition and storage is connected with the indicator lamp of the data acquisition for monitoring data collection card.
Preferably, described data collecting card comprises bus interface, at least 13 tunnel IO channel and 10 terminals; Described control panel comprises at least 8 output signals for the monitoring data collection card whether indicator lamp of superthreshold and at least 10 terminals for data acquisition.
Derailment control method, comprises the following steps:
(1) step one: the basic specification of the I/O interface of setting data capture card; The input and output mode of I/O interface is set, by corresponding for port button and indicator lamp, arranges with the monitoring of complete paired keys and indicator lamp; The significant level of indicator lamp and button is set;
(2) step 2: the Initialize installation completing AD; Arrange buffer size, open AD and interrupt, sampling rate sets, AD initialization, starts AD; After the board of the board quantity selected data capture card had according to data collecting card number, carry out stopping AD successively, empty hardware FIFO, empty software FIFO, driving buffer size is set, opens interruption, initialization is interrupted, zero point and full scale (judgement for overflowing) are set, AD initialization and startup AD, and overall sample rate operation is set; The sampling of the digital output channel of setting data capture card;
(3) step 3: complete key-press input and detect, indicator lamp output detections, adc data samples storage and serial communication;
(4) step 4: hull closures, releasing memory.
Preferably, step 3 comprises three parts:
Part I is the detection for each button; To input in the first frame selected board number, the start and stop of controls AD carried out respectively to 2 buttons, the read-write of serial ports allows and the start and stop of AD, the function setting of Data acquisition and storage permission:
Part II is the output of indicator lamp; Realize the control to the whether indicator lamp of superthreshold of the output signal for monitoring data collection card in control panel; If the signal that its digital output channel being set to monitoring data collection card exports exceedes threshold value, indicator lamp then for the output signal whether superthreshold of monitoring data collection card can glimmer, indicator lamp flicker is illustrates that signal exceedes threshold value, cannot normal receive data, is not derailing warning.
Part III is that the collection of ADC controls; The initialization of array, extracts one-dimension array, and create array, array of indexes etc., can check the data waveform of vehicle operating by mode chart; Realize the control for the function of vehicle operation data preservation, serial communication etc.; Calculate according to the data that data collecting card collects and judged whether derailing trend, if there is derailing trend to realize early warning by serial communication.
Preferably, the function of the indicator lamp be connected with button is limited according to the function setting of button.
The present invention can select industrial formula pocket computer subsidiary.Industry formula pocket computer is simply small and exquisite, be easy to carry about with one, and can easily be applied on train.Utilize computing machine to store data to use after utilizing movable storage device data to be taken out after test completes, the running condition of system can be checked by read-out.Data collecting card in derailing detection control device comprises bus interface, at least 13 tunnel IO channel and 10 terminals.Control panel comprises the button allowed for the start and stop of control AD, the read-write of serial ports, for the button that the start and stop of AD, Data acquisition and storage allow, and at least 8 output signals for the monitoring data collection card whether indicator lamp of superthreshold and at least 10 terminals for data acquisition.I/O input channel connects button, and I/O delivery channel connects indicator lamp.Data collecting card can select 518A/2 type; 518A/2 data collecting card adopts PC104 bus interface, has 32 road analog input channels, 24 road programmable digital amount IO channel and 8 analog output channels, tunnel; Be applicable to the multiple occasions such as industry spot, laboratory, embedded device.518A/2 data collecting card design parameter is as follows:
(1) analog input:
Port number: single-ended 32 tunnels, difference 16 tunnel
Resolution: 16
Sampling frequency: 250KHz
Input range: 0 ~ 10V(factory state), 0 ~ 4V, 0 ~ 5V ,-3.33 ~+3.33 ,-5V ~+5V ,-10V ~+10V, 0-20mA(customize)
Gain margin: 1,2,4,8(or 1,10,100,1000, need customization)
Gain mode: program control, during automatic switchover passage, 0 ~ 15 passage can get different gains
Conversion regime: software startup/start by set date/external trigger/outward sign controls start by set date
FIFO：8K
(2) modulating output: (only 518/2)
Port number: 8 tunnels
Output area: 0 ~ 5V, other voltage range of ± 5V(, needs customization)
Output accuracy: 12
Digital quantity I/O:
I/O passage able to programme: 24 tunnels
Export power-handling capability: <10mA
Level mode: Transistor-Transistor Logic level
(3) general characteristic
Operating temperature :-40 DEG C ~ 70 DEG C (wide temperature) 0 DEG C ~ 60 DEG C (common)
Relative humidity: 40% ~ 80%
Storage temperature :-45 DEG C ~+150 DEG C
In the present invention, the configuration of data collecting card is most important.What 518A/2 data collecting card basic configuration was has arranged board by wire jumper, and the configuration of wire jumper arranges as follows:
Computing machine and data collecting card are full-duplex communications, are carried out the connection of data between the two by PC104 bus.Data collecting card and control panel are contacted by winding displacement; For AD function, can only be that control panel sends data to data collecting card, be the equal of simplex; For I/0 function, control panel can send data to data collecting card, also can receive the data that 518A/2 data collecting card sends, but both can not carry out simultaneously, are the equal of half-duplex operation.24 paths of the I/O mouth of data collecting card be divide into 3 groups, and 1 group inputs, and all the other two groups export.The input channel of I/O mouth is used for the detection of the button of control panel; The defeated place passage of I/O mouth is for controlling the indicator lamp in control panel.
The LabView software of the present invention's application is the graphic programming developing instrument of most universality in virtual instrument field, that data acquisition and the control of current most widely used best results in the world one of develops software, be mainly used in the fields such as instrument controlling, data mining, data analysis and display, be applicable to multiple different operating system.Compared with higher level lanquage in the past, the programming of LabView graphical language for the common project planner of Shi Fei specialized procedure establishment, there is programming brief introduction, intuitive be strong, human-computer interaction interface is friendly, data visualization fractional analysis and the excellent feature of equipment control ability.LabView programming mainly realizes the initialization of derailing detection control device of the present invention, and I/O mouth reads write, and A/D gathers, and data store, the function such as serial communication and hull closures; Stacked sequential organization is arranged through by between the modules in derailing detection control device, each frame structure is utilized to complete setting step by step, one is divided into four frames i.e. four steps, and LabView software is by arranging each call parameter in derailing detection control device to the editor of this four frame:
(1) step one: the basic specification of the I/O interface of setting data capture card, it mainly arranges the input and output mode of I/O interface.The DIO1-DIO8 port of I/O interface is arranged to number entry mode, and the corresponding one key of each port, is arranged with the monitoring of complete paired keys; Input low level when button is arranged to press, input high level during release.The DIO9-DIO24 port of I/O interface is arranged to digital output mode, and the corresponding single indicator lamp of each port, is arranged the monitoring of indicator lamp to complete; Indicator lamp is arranged to Low level effective.The detection of button and indicator lamp is realized by " call library function node " function in calling data capture card.
(2) step 2: the Initialize installation completing AD, comprises and arrange buffer size, open AD and interrupt, sampling rate sets, AD initialization, starts AD etc.Mainly use " call library function node " function; After the board of the board quantity selected data capture card had according to data collecting card number, carry out stopping AD successively, empty hardware FIFO, empty software FIFO, driving buffer size is set, opens interruption, initialization is interrupted, zero point and full scale (judgement for overflowing) are set, AD initialization and startup AD, and overall sample rate operation is set.In this frame, AD dead work can be ensured, the sampling of 8 railway digital delivery channels of setting data capture card, every passage 12.5K.
(3) step 3 is while circulation, completes key-press input and detects, indicator lamp output detections, adc data samples storage and serial communication in circulation the inside.Here is main three parts:
Part I is the detection for each button; By using " call library function node ", to input in the first frame selected board number, the start and stop of controls AD carried out respectively to 2 buttons, the read-write of serial ports allows and the start and stop of AD, the function setting of Data acquisition and storage permission.
Part II is the output of indicator lamp; Main application labview carries the control that software " by name bundle " function and " call library function node " function realize the whether indicator lamp of superthreshold of the output signal for monitoring data collection card in control panel; If signal that its digital output channel being set to monitoring data collection card exports exceedes threshold value, then the indicator lamp for the output signal whether superthreshold of monitoring data collection card can glimmer.
Part III is that the collection of ADC controls; Main utilization " call library function node " function and the operation that array is correlated with is realized.The software controls carried by Labview, to complete the initialization of array, extracts one-dimension array, and create array, array of indexes etc., can check data waveform by mode chart.In this frame, utilize the control of Labview, the control of the function for data preservation, serial communication etc. can be added.In frame, add corresponding program realize following functions: the algorithm that the data application collected data collecting card is relevant has judged whether derailing trend, if there is derailing trend can carry out derailing early warning by serial communication.
(4) step 4: hull closures, releasing memory.
Indicator lamp on control panel is all set to Low level effective.Press the button allowed for the start and stop of control AD, the read-write of serial ports, data acquisition card start-up AD function, the indicator lamp that the data for monitoring data collection card are read and the indicator lamp that the data for monitoring data collection card are write are lit.When Data Acquisition Card is by data in digital independent control panel, the indicator lamp flicker that the data for monitoring data collection card are read; When Data Acquisition Card by data by data input control panel time, the data for monitoring data collection card write indicator lamp flicker.Press the button of the start and stop for AD, Data acquisition and storage permission, data acquisition card start-up AD function and Data acquisition and storage function, the indicator lamp for the data acquisition of monitoring data collection card is lit.Indicator lamp for the data acquisition of monitoring data collection card when data collecting card carries out data acquisition time can glimmer.Namely coupled when the read-write of pressing serial ports allows button read indicator lamp for monitor data and write indicator lamp can be always bright, has to read indicator lamp during the read or write of data or write indicator lamp flicker otherwise can Chang Liang at data collecting card; If the read-write of serial ports allows button not to be pressed, then the indicator lamp read or write for monitor data all goes out.When Data acquisition and storage allows button to be pressed, the coupled meeting of the indicator lamp for monitoring data collection Chang Liang, if data collecting card has data acquisition operations, this indicator lamp can glimmer; If Data acquisition and storage allows button not to be pressed, then the indicator lamp for monitoring data collection goes out.
When the signal that the digital output channel of data collecting card exports exceedes threshold value, the indicator lamp for the output signal whether superthreshold of monitoring data collection card can glimmer early warning.
Finally, by the computing machine connected with derailing detection control device, user can facilitate and checks tested vehicle data waveform figure in the process of moving intuitively.
Derailing detection control device of the present invention, can gather the data in train detection systems, and to be derailed the analysis that determination methods is correlated with to these data by the present invention, obtains the running state of train.When train has derailing movement tendency, the present invention carries out derailing early warning by serial communication.The present invention can provide test condition for the highest operation speed per hour experiment of heavy haul railway empty-car, also can for studying different train classification type, the empty-car running velocity expected value of different track section provides basic Data support.This is the running velocity and the Car Turnover efficiency that improve heavy haul railway empty-car further, improves railway transportation performance, strengthens Transport Safety and lays a good groundwork.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is the structural representation of the preferred embodiment of derailing detection control device of the present invention.
Fig. 2 is the wire jumper layout circle of the data collecting card of the preferred embodiment of derailing detection control device of the present invention.
Fig. 3 is the structural representation of the 0th frame of the preferred embodiment of derailing determination methods of the present invention.
Fig. 4 is the structural representation of the first frame of the preferred embodiment of derailing determination methods of the present invention.
Fig. 5 A, 5B, 5C are the structural representation of the second frame of the preferred embodiment of derailing determination methods of the present invention.
Fig. 6 is the structural representation of the 3rd frame of the preferred embodiment of derailing determination methods of the present invention.
In figure, 1. computing machine, 2. control panel, 3. data collecting card, 4. button, 5. indicator lamp, 6. terminal.
Detailed description of the invention
With reference to shown in Fig. 1, industrial formula pocket computer subsidiary selected by derailing detection control device.Industry formula pocket computer is simply small and exquisite, be easy to carry about with one, and can easily be applied on train.Utilize computing machine to store data to use after adopting storage equipment data to be taken out after test completes, the running condition of system can be checked by read-out.Data collecting card in derailing detection control device selects 518A/2 type; 518A/2 data collecting card adopts PC104 bus interface, has 32 road analog input channels, 24 road programmable digital amount IO channel and 8 analog output channels, tunnel; Be applicable to the multiple occasions such as industry spot, laboratory, embedded device.
Computing machine and data collecting card are full-duplex communications, are carried out the connection of data between the two by PC104 bus.Data collecting card and control panel are contacted by winding displacement; For AD function, can only be that control panel sends data to data collecting card, be the equal of simplex; For I/0 function, control panel can send data to data collecting card, also can receive the data that 518A/2 data collecting card sends, but both can not carry out simultaneously, are the equal of half-duplex operation.24 paths of the I/O mouth of data collecting card be divide into 3 groups, and 1 group inputs, and all the other two groups export.The input channel of I/O mouth is used for the detection of the button of control panel; The defeated place passage of I/O mouth is for controlling the indicator lamp in control panel.
In control panel, the 1st row is 3 buttons: Key1, Key2, Key3, and the 2nd row is 3 indicator lamps: K1, K2, K3; 3rd row is 8 indicator lamp: K11-K18.3 road I/O input channels are connected with 3 single correspondences of button, and indicator lamp K1, K2 connect button Key2.Indicator lamp K3 connects button Key3.8 road I/O delivery channels are connected with the single correspondence of indicator lamp K11-K18.4th row is 10 terminals for data acquisition, and the terminal correspondence of these terminals and data collecting card is connected, collection be data in data collecting card.When debugging, first Key2 and Key3 being pressed, seeing that whether indicator lamp K1, K2 and K3 be bright, then carrying out the operation of software, whether correct when checking that indicator lamp is lighted.
With reference to shown in Fig. 2, in the present invention, the configuration of the data collecting card of derailing detection control device is most important.What 518A/2 data collecting card basic configuration was has arranged board by wire jumper, and the configuration of wire jumper arranges as follows:
Software section of the present invention adopts LabView programming to realize, LabView programming mainly realizes the initialization of equipment, I/O mouth reads write, A/D gathers, data store, the function such as serial communication and hull closures, is completed step by step by each frame structure in stacked sequential organization between modules, is divided into four steps.
With reference to shown in Fig. 3, the basic specification of the I/O interface of setting data capture card in a first step, it mainly arranges the input and output mode of I/O interface.The DIO1-DIO8 port of I/O interface is arranged to number entry mode, and the corresponding one key of each port, is arranged with the monitoring of complete paired keys; Input low level when button is arranged to press, input high level during release.The DIO9-DIO24 port of I/O interface is arranged to digital output mode, and the corresponding single indicator lamp of each port, is arranged the monitoring of indicator lamp to complete; Indicator lamp is arranged to Low level effective.The detection of button and indicator lamp is realized by " call library function node " function in calling data capture card.
With reference to shown in Fig. 4, complete the Initialize installation of AD, comprise and arrange buffer size in second step, open AD and interrupt, sampling rate sets, AD initialization, starts AD etc.Mainly use " call library function node " function; The board number of selected data capture card is 1, carry out stopping AD successively afterwards, empty hardware FIFO, empty software FIFO, driving buffer size is set, opens interruption, initialization is interrupted, zero point and full scale (judgement for overflowing) are set, AD initialization and startup AD, and overall sample rate operation is set.In this frame, AD dead work can be ensured, the sampling of 8 railway digital delivery channels of setting data capture card, every passage 12.5K.
Shown in Fig. 5 A-Fig. 5 C, the 3rd step is while circulation, completes key-press input and detects, indicator lamp output detections, adc data samples storage and serial communication in circulation the inside.Second frame mainly contains following three parts:
Shown in Fig. 5 A, Part I is the detection for each button; By using " call library function node ", to input in the first frame selected board number 1, the start and stop of controls AD carried out to the button on control panel, the read-write of serial ports allows and the start and stop of AD, the function setting of Data acquisition and storage permission.Button Key1 does not carry out keypress function definition, for expanding later.Setting Key2 is the button allowed for the start and stop of control AD, the read-write of serial ports, can carry out the read-write of serial ports after pressing.Setting Key3 is used for the start and stop of AD, the button of Data acquisition and storage permission, can carry out collection and the storage of data after pressing.The function of the indicator lamp be connected with button is limited according to the function setting of button.Setting K1 is the indicator lamp read for the data of monitoring data collection card, and setting K2 is the indicator lamp write for the data of monitoring data collection card, and setting K3 is the indicator lamp of the data acquisition for monitoring data collection card.These 3 indicator lamps are all Low level effectives due to the setting in the 0th frame, just can be bright when the button of correspondence is pressed.Wherein, K1, K2 correspond to Key2, and representative receives data and sends data, and when Key2 presses, K1 and K2 can be always bright, if when data collecting card has reading or writing of data, corresponding K1 or K2 can glimmer, otherwise can Chang Liang; If Key2 does not press, then K1 and K2 goes out.K3 corresponds to Key3, and when Key3 is pressed, K3 meeting Chang Liang, if there is the collection of data, can glimmer, if Key3 is not pressed, then K3 goes out.3rd row is the indicator lamp of 8 output signals for monitoring data collection card whether superthreshold; If the signal of the delivery channel of data collecting card exceedes threshold value, then the indicator lamp be connected with passage in indicator lamp K11-K18 can glimmer.
Shown in Fig. 5 B, Part II is the output of indicator lamp, mainly apply " by name bundle " function and " call library function node " function, the control of 8 output signals for the monitoring data collection card whether indicator lamp of superthreshold for the 3rd row in control panel can be realized here.If the signal that the digital output channel being set to monitoring data collection card exports exceedes threshold value, the indicator lamp be connected with the passage exceeding threshold value can glimmer.
Shown in Fig. 5 C, Part III is that the collection of ADC controls; Main utilization " call library function node " function and the operation that array is correlated with is realized.The software controls carried by Labview, to complete the initialization of array, extracts one-dimension array, and create array, array of indexes etc., can check data waveform by mode chart.In this frame, utilize the control of Labview, the control of the function for data preservation, serial communication etc. can be added.In frame, add corresponding program realize following functions: the algorithm relevant to data collecting card collection morals data application has judged whether derailing trend, if there is derailing trend can carry out derailing early warning by serial communication.
With reference to shown in Fig. 6, the 4th step is mainly used in hull closures, releasing memory.
User can check by the computing machine that connects with derailing detection control device the mode chart be made up of the running data of tested vehicle.
The above only makes the preferred embodiments of the present invention, not any pro forma restriction is done to the present invention, every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (5)
1. derail detection control device, comprises control panel, data collecting card and bus; It is characterized in that: described data collecting card is connected by described bus with computing machine, adopt full-duplex communication, described computing machine calculates according to the data that described data collecting card collects and has judged whether derailing trend, if there is derailing trend to carry out derailing early warning by serial ports; Described data collecting card and described control panel are simplexs for AD function, are half-duplex operations for I/O function; Described control panel comprises the button allowed for the start and stop of control AD, the read-write of serial ports, for the button that the start and stop of AD, Data acquisition and storage allow, with for the output signal whether indicator lamp of superthreshold and the terminal for data acquisition of monitoring data collection card; I/O input channel connects button, and I/O delivery channel connects indicator lamp, and the terminal of data collecting card connects the terminal of control panel.
2. derailing detection control device as claimed in claim 1, it is characterized in that: the data comprised for monitoring data collection card read indicator lamp, data for monitoring data collection card write indicator lamp, for the indicator lamp of the data acquisition of monitoring data collection card, for the start and stop of control AD, the button that the read-write of serial ports allows and the indicator lamp read for the data of monitoring data collection card, the indicator lamp write for the data of monitoring data collection card is connected, for the start and stop of AD, the button that Data acquisition and storage allows is connected with the indicator lamp of the data acquisition for monitoring data collection card.
3. derailing detection control device as claimed in claim 1, is characterized in that: described data collecting card comprises bus interface, at least 13 tunnel IO channel and 10 terminals; Described control panel comprises at least 8 output signals for the monitoring data collection card whether indicator lamp of superthreshold and at least 10 terminals for data acquisition.
4. derailing determination methods, comprises the following steps:
Step one: the basic specification of the I/O interface of setting data capture card; The input and output mode of I/O interface is set, by corresponding for port button and indicator lamp, arranges with the monitoring of complete paired keys and indicator lamp; The significant level of indicator lamp and button is set;
Step 2: the Initialize installation completing AD; Arrange buffer size, open AD and interrupt, sampling rate sets, AD initialization, starts AD; After the board of the board quantity selected data capture card had according to data collecting card number, carry out stopping AD successively, empty hardware FIFO, empty software FIFO, driving buffer size is set, opens interruption, initialization is interrupted, zero point and full scale are set, AD initialization and startup AD, and overall sample rate operation is set; The sampling of the digital output channel of setting data capture card;
Step 3: complete key-press input and detect, indicator lamp output detections, adc data samples storage and serial communication;
Step 4: hull closures, releasing memory;
Described step 3 comprises three parts:
Part I is the detection for each button; To input in the first frame selected board number, the start and stop of controls AD carried out respectively to 2 buttons, the read-write of serial ports allows and the start and stop of AD, the function setting of Data acquisition and storage permission;
Part II is the output of indicator lamp; Realize the control to the whether indicator lamp of superthreshold of the output signal for monitoring data collection card in control panel; If signal that its digital output channel being set to monitoring data collection card exports exceedes threshold value, then the indicator lamp for the output signal whether superthreshold of monitoring data collection card can glimmer;
Part III is that the collection of ADC controls; Become the initialization of array, extract one-dimension array, create array, array of indexes, checks the data waveform of vehicle operating by mode chart; Realize the control of the function for vehicle operation data preservation, serial communication; Calculate according to the data that data collecting card collects and judged whether derailing trend, if there is derailing trend to be communicated by serial ports.
5. to derail as claimed in claim 4 determination methods, it is characterized in that: the function limiting the indicator lamp be connected with button according to the function setting of button.
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| CN104317585A (en) * | 2014-10-22 | 2015-01-28 | 四川东方电气自动控制工程有限公司 | Design method of customable software wave recording |
| CN205344914U (en) * | 2015-12-30 | 2016-06-29 | 中车长江车辆有限公司 | Anticreep rail bogie based on side bearer location detection |
| DE102016104722A1 (en) * | 2016-03-15 | 2017-09-21 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Method for generating data for the validation of derailment detection systems |
| JP6884343B2 (en) * | 2017-06-02 | 2021-06-09 | 曙ブレーキ工業株式会社 | Derailment sign detection system, control device, derailment sign detection method, and derailment sign detection program |
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| CN102654752A (en) * | 2011-03-03 | 2012-09-05 | 高贤虎 | Data acquisition system based on Nand Flash |
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2012
- 2012-10-15 CN CN201210390833.4A patent/CN102874272B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1604088A (en) * | 2004-11-17 | 2005-04-06 | 浙江大学 | Fault collection and detection apparatus and method |
| CN102476210A (en) * | 2010-11-22 | 2012-05-30 | 福州钜立机动车配件有限公司 | Double-side milling machine for processing connecting rod |
| CN102654752A (en) * | 2011-03-03 | 2012-09-05 | 高贤虎 | Data acquisition system based on Nand Flash |
| CN202142911U (en) * | 2011-07-18 | 2012-02-08 | 航天科工深圳（集团）有限公司 | An intelligent monitoring module and a distributed distribution terminal having the intelligent monitoring module |
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