CN203032671U - Vehicle-mounted monitoring device for transverse sway and longitudinal impulse of locomotive - Google Patents
Vehicle-mounted monitoring device for transverse sway and longitudinal impulse of locomotive Download PDFInfo
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- CN203032671U CN203032671U CN 201320002760 CN201320002760U CN203032671U CN 203032671 U CN203032671 U CN 203032671U CN 201320002760 CN201320002760 CN 201320002760 CN 201320002760 U CN201320002760 U CN 201320002760U CN 203032671 U CN203032671 U CN 203032671U
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Abstract
The utility model provides a vehicle-mounted monitoring device for the transverse sway and longitudinal impulse of a locomotive. The vehicle-mounted monitoring device comprises a framework sensor and a locomotive body sensor which are used for acquiring a transverse vibrating signal and a longitudinal vibrating signal respectively, a signal conditioning module which is connected with the locomotive body sensor and the framework sensor and is used for conditioning the acquired vibrating signals, a signal acquisition module which is connected with the signal conditioning module and is used for performing analog/digital (A/D) conversion on the vibrating signals, a preprocessing module which is connected with the signal acquisition module and is used for preprocessing the vibrating signals which are subjected to the A/D conversion, a comprehensive diagnosis module which is used for processing and analyzing the preprocessed vibrating signals to estimate the transverse sway and longitudinal impulse of the locomotive and a vehicle-mounted display terminal, wherein the comprehensive diagnosis module is connected with the preprocessing module; and the vehicle-mounted display terminal is connected with the comprehensive diagnosis module and is used for displaying the monitoring state of the transverse sway and longitudinal impulse of the locomotive in real time.
Description
Technical field
The utility model relates to a kind of locomotive transverse shakiness and longitudinal impulse vehicle-bone monitoring device.
Background technology
In the locomotive operation process, because the fault of excitation, driver's maloperation or the intrinsic parts of locomotive itself that the circuit irregularity produces can cause transverse shakiness and longitudinal impulse unusual, as can not in time finding, with regard to the entail dangers to traffic safety.Because the rolling stock system is the non-linear vibrating system of a complexity.Under specific operation, the output signal of the privileged site of system is that certain distribution is arranged in the particular analysis territory, the state that the changes in distribution situation by signal energy in this particular analysis territory can recognition system.Bogie truck and car body at locomotive are installed acceleration pick-up, gather the vibration signal in the locomotive operational process in real time, by signal processing, feature extraction and pattern-recognition, transverse shakiness and longitudinal impulse state to locomotive are monitored, can carry out the real-time online assessment to the locomotive running gear state, guarantee safe in operation.
Existing a kind of portable locomotive rocks monitoring device, the locomotive transverse acceleration signal can be gathered, handles and be analyzed to this device, but result is that the locomotive operation circuit is carried out indirectly testing, with the situation of evaluation circuit, and the inherent characteristic of locomotive own is not judged.
Other has a kind of portable slack action detector, this detector adopts the longitudinal acceleration signal in the acceleration pick-up measurement train travelling process, and the data of gathering are analyzed, handle, unite the method for sign according to acceleration/accel and rate of acceleration change the train longitudinal impulse is judged.This device just itself is evaluated as a result to longitudinal impulse, and the reason of generation impulsion or the change of locomotive inherent characteristic are not related to.
The defective of above-mentioned two kinds of methods is:
All be portable set, can't provide continuous real time on-line monitoring to locomotive operation;
All be that the vibration acceleration of locomotive single direction is gathered, handled and analyzes, with identification circuit situation or impulsion grade, but locomotive is a Complex Nonlinear System, coupling is very tight between the factor that the system that influences exports, have only various factors is carried out comprehensive analyses, could effectively assess trouble-saving generation to the state of locomotive;
Do not have the sensor self-checking function, can't in utilization, grasp the state of sensor;
Do not have vehicle-mounted display interface, can't make the driver obtain alarm message in the very first time, and take corresponding measure;
Do not have supporting ground expert system, can't carry out profound excavation and analysis to the observation process data, for the maintenance of locomotive provides foundation.
The utility model content
The utility model provides a kind of locomotive transverse shakiness and longitudinal impulse vehicle-bone monitoring device at the defective of above-mentioned prior art, comprising: framework sensor and the car body sensor of gathering the horizontal and vertical vibration signal of locomotive respectively; The signal condition module that links to each other with the framework sensor with described car body sensor and the vibration signal of gathering is nursed one's health; The signal acquisition module that links to each other and described vibration signal is carried out the A/D conversion with described signal condition module; The vibration signal that links to each other with described signal acquisition module and process A/D is changed carries out pretreated pre-processing module; To handle and analyze to assess the comprehensive diagnosis module of transverse shakiness and the longitudinal impulse state of locomotive through pretreated vibration signal, described comprehensive diagnosis module links to each other with described pre-processing module; Vehicle-mounted display terminal links to each other and real-time transverse shakiness and the longitudinal impulse state that shows locomotive with described comprehensive diagnosis module.
Aforesaid locomotive transverse shakiness and longitudinal impulse vehicle-bone monitoring device, wherein comprehensive diagnosis module is the comprehensive diagnosis module of carrying out time/frequency-domain analysis, signature analysis and pattern-recognition.
Aforesaid locomotive transverse shakiness and longitudinal impulse vehicle-bone monitoring device, wherein car body sensor and framework sensor are the acceleration pick-up with real-time self-checking function.
Aforesaid locomotive transverse shakiness and longitudinal impulse vehicle-bone monitoring device, wherein the framework sensor is installed on the forecarriage and trailing truck of locomotive.
Aforesaid locomotive transverse shakiness and longitudinal impulse vehicle-bone monitoring device, wherein the car body sensor is installed on car body front end and the car body rear end.
By vehicle-bone monitoring device of the present utility model, can effectively monitor transverse shakiness and the longitudinal impulse of locomotive, assessment locomotive running state, trouble-saving generation.
Description of drawings
Shown in accompanying drawing, above-mentioned and other purpose, feature and advantage of the present utility model will be more clear.Reference numeral identical in whole accompanying drawings is indicated identical part.Painstakingly do not press actual size equal proportion convergent-divergent and draw accompanying drawing, focus on illustrating purport of the present utility model.
Fig. 1 shows the constructional drawing of the safety monitoring assembly of locomotive transverse shakiness of the present utility model and longitudinal impulse;
Fig. 2 shows the installation example of vehicle-bone monitoring device of the present utility model on six locomotives;
Fig. 3 shows the installation example of vehicle-bone monitoring device of the present utility model on eight locomotives;
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described.Obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Secondly, the utility model is described in detail in conjunction with scheme drawing, and when the utility model embodiment was described in detail in detail, for ease of explanation, described scheme drawing was example, and it should not limit the scope of the utility model protection at this.
The utility model relates to a kind of vehicle-bone monitoring device 1 for locomotive, as shown in Figure 1, is used for transverse shakiness and the longitudinal impulse of monitoring locomotive, carries out comprehensive assessment, and shows diagnostic result.Describe the structure of this vehicle-bone monitoring device 1 in detail below with reference to Fig. 1.
Locomotive transverse shakiness and longitudinal impulse vehicle-bone monitoring device are made up of car body sensor 11 and framework sensor 13, signal condition module 20, signal acquisition module 30, pre-processing module 40, comprehensive diagnosis module 50, vehicle-mounted display terminal 60.
Wherein car body sensor 11 and framework sensor 13 are used for gathering the vertical and horizontal vibration signal of locomotive respectively, and carry out real-time self check according to the self-checking command that comprehensive diagnosis module 50 issues, and self-detection result is uploaded to comprehensive diagnosis module 50.
After the analog signal that car body sensor 11 and framework sensor 13 are gathered is carried out signal condition by signal condition module 20, carry out A/D through signal acquisition module 30 and be converted to digital signal, and send to pre-processing module 40.
Pre-processing module 40 will adopt digital signal carry out pretreatments such as elimination of burst noise, LPF after, be sent to comprehensive diagnosis module 50 and carry out analyzing and processing.
50 pairs of pretreated signals of comprehensive diagnosis module carry out time-domain analysis, frequency-domain analysis, the work of various feature extractions and various pattern-recognitions is carried out comprehensive assessment to transverse shakiness and the longitudinal impulse state of locomotive, and diagnostic result is sent to vehicle-mounted display terminal 60.
Vehicle-mounted display terminal 60 shows transverse shakiness and the longitudinal impulse monitoring result of locomotive in real time, when monitoring error state, with Realtime Alerts and demonstration vibration original data waveform.
Described car body sensor 11 and framework sensor 13 can be acceleration pick-ups.Described framework sensor 13 is installed on the forecarriage and trailing truck of locomotive, and described car body sensor 11 is installed on car body front end and the car body rear end.Vehicle-bone monitoring device 1 of the present utility model also can comprise ground expert system 70 in addition, thereby carries out system state monitoring and diagnosis.
The horizontal dynamic monitoring of locomotive is described below.
Rolling stock is typical nonlinear system, and its equation of motion is
After the speed in the formula was determined, the stability of system was also determined thereupon.The stability of analyzing its null solution is not only in the analysis of stability, also will study global stability.
Framework lateral vibration acceleration/accel shows different signal characteristics under different operating conditions.Generally speaking, can be described as the forced vibration characteristics that frequency band is abundant, randomness is strong, the influence of speed frequency band is outstanding.
The time that bogie truck lateral stability monitoring need continue with half waveform (maximum time length be 200 milliseconds) is that yardstick is finished real-time monitoring.Thereby seeking dominant frequency method etc. by the FFT frequency domain can not requirement of real time based on the algorithm of time frame.Here we propose with the signal energy of half-wavelength and amplitude standard as characteristic parameter, are means with the mixed Gauss model, realize real time on-line monitoring according to UIC and iron target standard by DSP.
Vertically dynamic data calculates
In the locomotive operation process, its longitudinal force is in the process of a dynamic change all the time.Generally speaking, the variation of longitudinal force is milder, but when locomotive is subjected to inducing of some factor, as traction and brake action, and this variation comparison fierceness that may become, namely what is called causes longitudinal impulse.
After gathering locomotive longitudinal impulse acceleration/accel, signal condition and pretreatment, calculate rate of acceleration change, just can estimate vertical dynamic data of locomotive, thus the traveling portion mode of operation of identification locomotive.
Below respectively referring to figs. 2 and 3 describing the implementation of safety detection device of the present utility model on six locomotives and eight locomotives.
Six locomotive implementations
As shown in Figure 2, six locomotives are respectively installed 1 acceleration pick-up 11 and 12 on forecarriage and trailing truck, gather locomotive lateral vibration signal; At car body front end and car body rear end 1 acceleration pick-up 13 and 14 are installed respectively, gather car body longitudinal vibration signal.
After the signal of the acceleration pick-up collection of installing on car body front end and the forecarriage compiles by connection box, be uploaded to monitoring main frame 21; After the signal of the acceleration pick-up collection of installing on car body rear end and the trailing truck compiles by connection box, be uploaded to monitoring main frame 21.
The signal acquisition module 20 of monitoring main frame 21 is gathered the analog signal that connection box is compiled under the cars, carry out signal condition and A/D after, enter comprehensive diagnosis module 30;
Comprehensive diagnosis module 30 is judged the transverse shakiness state of locomotive according to the lateral vibration signal, judge the longitudinal impulse state of locomotive according to the longitudinal vibration signal, after according to the two result the running state of locomotive being carried out comprehensive assessment, diagnostic result is sent to vehicle-mounted display terminal 40 shows.
Eight locomotive embodiments
Eight locomotives are formed by connecting by two four identical locomotives, the equipment mount scheme of each locomotive is identical with the mount scheme of single six locomotives, by network connection, on the display terminal of each locomotive, can both see the monitoring result of an other locomotive between the two joint locomotives.
The above only is preferred embodiment of the present utility model, is not the utility model is done any pro forma restriction.Any those of ordinary skill in the art, do not breaking away under the technical solutions of the utility model scope situation, all can utilize method and the technology contents of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solutions of the utility model according to any simple modification, equivalent variations and the modification that technical spirit of the present utility model is done above embodiment, all still belongs in the scope of technical solutions of the utility model protection.
Claims (5)
1. a locomotive transverse shakiness and longitudinal impulse vehicle-bone monitoring device comprise:
Gather the horizontal of locomotive and framework sensor and the car body sensor of vibration signal longitudinally respectively;
The signal condition module that links to each other with the framework sensor with described car body sensor and the vibration signal of gathering is nursed one's health;
The signal acquisition module that links to each other and described vibration signal is carried out the A/D conversion with described signal condition module;
The vibration signal that links to each other with described signal acquisition module and process A/D is changed carries out pretreated pre-processing module;
To handle and analyze to assess the comprehensive diagnosis module of transverse shakiness and the longitudinal impulse state of locomotive through pretreated vibration signal, described comprehensive diagnosis module links to each other with described pre-processing module;
Vehicle-mounted display terminal links to each other and real-time transverse shakiness and the longitudinal impulse monitoring state that shows locomotive with described comprehensive diagnosis module.
2. vehicle-bone monitoring device as claimed in claim 1 is characterized in that, described comprehensive diagnosis module is the comprehensive diagnosis module of carrying out time/frequency-domain analysis, signature analysis and pattern-recognition.
3. vehicle-bone monitoring device as claimed in claim 1 or 2 is characterized in that, described car body sensor and framework sensor are the acceleration pick-up with real-time self-checking function.
4. vehicle-bone monitoring device as claimed in claim 1 or 2 is characterized in that, described framework sensor is installed on the forecarriage and trailing truck of locomotive.
5. vehicle-bone monitoring device as claimed in claim 1 or 2 is characterized in that, described car body sensor is installed on car body front end and the car body rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320002760 CN203032671U (en) | 2013-01-04 | 2013-01-04 | Vehicle-mounted monitoring device for transverse sway and longitudinal impulse of locomotive |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320002760 CN203032671U (en) | 2013-01-04 | 2013-01-04 | Vehicle-mounted monitoring device for transverse sway and longitudinal impulse of locomotive |
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| CN203032671U true CN203032671U (en) | 2013-07-03 |
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| CN 201320002760 Expired - Lifetime CN203032671U (en) | 2013-01-04 | 2013-01-04 | Vehicle-mounted monitoring device for transverse sway and longitudinal impulse of locomotive |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107074243A (en) * | 2014-11-25 | 2017-08-18 | 大众汽车有限公司 | For the method for the longitudinal judder for recognizing motor vehicle |
| CN108545097A (en) * | 2018-06-15 | 2018-09-18 | 中车唐山机车车辆有限公司 | Shaking monitoring method, system and the device of rail vehicle |
| CN111497900A (en) * | 2020-04-13 | 2020-08-07 | 唐智科技湖南发展有限公司 | Train longitudinal impulse detection method and device and computer readable storage medium |
-
2013
- 2013-01-04 CN CN 201320002760 patent/CN203032671U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107074243A (en) * | 2014-11-25 | 2017-08-18 | 大众汽车有限公司 | For the method for the longitudinal judder for recognizing motor vehicle |
| CN107074243B (en) * | 2014-11-25 | 2020-01-03 | 大众汽车有限公司 | Method for detecting longitudinal shaking of motor vehicle |
| CN108545097A (en) * | 2018-06-15 | 2018-09-18 | 中车唐山机车车辆有限公司 | Shaking monitoring method, system and the device of rail vehicle |
| CN111497900A (en) * | 2020-04-13 | 2020-08-07 | 唐智科技湖南发展有限公司 | Train longitudinal impulse detection method and device and computer readable storage medium |
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| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20130703 |