CN204210490U - Based on the high-speed switch crackle monitoring device of vibration-mode analysis technology - Google Patents

Abstract

The utility model relates to a kind of high-speed switch crackle monitoring device based on vibration-mode analysis technology, comprises, monitoring main frame and eight vibration acceleration sensors; Monitoring main frame includes, Signal-regulated kinase, A/D acquisition module, FPGA signal processing module.The utility model carries out data vibration-mode analysis by collection train by vibration acceleration signal during high-speed switch and realizes high-speed switch crack monitoring, multithreading designs, gather train to carry out data vibration-mode analysis by vibration signal during high-speed switch and realize high-speed switch crack monitoring and change and can not cause process switching, thus improve the concurrent degree of system; Can Real-time Obtaining train by the vibration data of monitoring point during high-speed switch, adopt vibration acceleration sensor mode, mechanical contact, track switch original data realizes focusing on, and improves the safety of data, realizes damage forecast reliability and stability.

Description

Based on the high-speed switch crackle monitoring device of vibration-mode analysis technology

Technical field

The utility model relates to a kind of railroad track monitoring device, particularly a kind of high-speed switch crackle monitoring device based on vibration-mode analysis technology.

Background technology

At present, there is fracture in the rail on high-speed overload railway operation line, by serious threat traffic safety.Especially the easy et out of order of the rail at high-speed switch position; " three prevent " measure that China railways department formulates for traffic safety, one of them is exactly anti-breaking rail.Monitoring prevention for disconnected rail should be strengthened the management of rail various flaw detection operation and improve the quality of the various flaw detection operation of rail.No matter but which kind of rail examination operation because there is problem duty cycle, the reason such as quality problems and human element may be there is in defect-detecting equipment itself, so steel rail defect can not be found completely thus pre-anti-breaking rail and Timeliness coverage breaks rail.Disconnected rail is once occur, requiring at least can forwards send a car to send signal and made it enough time takes countrmeasure.Want Timeliness coverage to break rail prevent the generation of pernicious operation accident, just need to detect disconnected rail in real time.From principle of work, main two classes of real-time broken rail method of inspection.Namely based on traction current real-time broken rail method of inspection and the accurate track circuit real-time broken rail method of inspection of track circuit Principle Method, based on the optical fiber real-time broken rail method of inspection of non-track circuit Principle Method, stress real-time broken rail method of inspection and sound wave real-time broken rail method of inspection.Traction current and accurate track circuit real-time broken rail method of inspection are performed poor in the detection sensitivity of the special operation condition such as track switch, guard rail and system reliability, sound wave real-time broken rail method of inspection is poor in the detection sensitivity and system reliability at mechanical insulated place, fitting operation and the recoverability of optical fiber real-time broken rail method of inspection have much room for improvement, and stress real-time broken rail detection side rule is performed poor in sensitivity, system reliability and recoverability.

Utility model content

In order to solve the undesirable problem of above-mentioned existing high-speed switch detecting device effect, the utility model provides a kind of high-speed switch crackle monitoring device based on vibration-mode analysis technology and method.

The utility model solves the technical scheme that its technical matters adopts: based on the high-speed switch crackle monitoring device of vibration-mode analysis technology, comprise, monitoring main frame and eight vibration acceleration sensors;

Described monitoring main frame includes, eight Signal-regulated kinase, eight A/D acquisition modules, FPGA signal processing module, power interface, power source protective module, power detecting module, energy supply control module, Network Interface Module, memory module and temperature sensors;

Complete the amplification of vibration acceleration signal, filtering, conditioning processing capacity the input end of Signal-regulated kinase be attached to corresponding vibration acceleration sensor, mouth connects the A/D acquisition module of its correspondence respectively; The A/D acquisition module of settling signal digital to analogy conversion connects with power detecting module and temperature sensor respectively;

The FPGA signal processing module completing Modal Parameter Identification and signal operation processing capacity connects eight A/D acquisition modules, memory module, temperature sensor, Network Interface Module and power detecting module respectively;

The power interface providing direct current 24V to power is connected with power detecting module by power source protective module; Power detecting module connects FPGA signal processing module, temperature sensor and eight A/D acquisition modules respectively.

Further, the utility model provides a kind of method adopting vibration-mode analysis technical monitoring high-speed switch crackle, carry out by the vibration acceleration signal during high-speed switch method that data modality analysis realizes high-speed switch crack monitoring by gathering train, the method comprises the following steps: A. arranges one group of vibration acceleration sensor at high-speed switch; B. train is gathered by vibration acceleration signal during high-speed switch; C. by vibration acceleration signal through signal amplification, filtering, conditioning process, the analog/digital conversion of then carrying out signal is digital signal; D. this digital signal obtains the state parameter of high-speed switch rail after carrying out Signal Pretreatment and modal idenlification by FPGA technology.

The utility model adopts vibration acceleration sensor mode, and mechanical contact, arranges multiple service thread, and data acquisition, data prediction, Modal Parameter Identification, network service, data store, and improves throughput of system and actv. use system resource.

The beneficial effect that the utility model has is: adopt vibration acceleration signal to carry out data modality analysis and realize high-speed switch crack monitoring, employing multithreading designs, the space-time expense paid during minimizing program concurrence performance, to improve the loading and unloading capacity of resource utilization and raising system, by modular design such as data acquisition, data prediction, Modal Parameter Identification, data communication same in-process; In same process, the switching of thread can not cause process switching, thus improves the concurrent degree of system; Can Real-time Obtaining train by high-speed switch time monitoring point vibration acceleration data, adopt differential transfer, antijamming capability is strong; Adopt vibration acceleration sensor mode, mechanical contact, track switch original data concentrates process, so that improve safety, the reliability and stability of data.

Accompanying drawing explanation

Fig. 1 is structural schematic block diagram of the present utility model.

Detailed description of the invention

Below in conjunction with drawings and Examples, the utility model is further illustrated.

As shown in Figure 1, based on the high-speed switch crackle monitoring device of vibration-mode analysis technology, comprise, monitoring main frame and eight vibration acceleration sensors;

Described monitoring main frame includes, eight Signal-regulated kinase, eight A/D acquisition modules, FPGA signal processing module, power interface, power source protective module, power detecting module, energy supply control module, Network Interface Module, memory module and temperature sensors;

Complete the amplification of vibration acceleration signal, filtering, conditioning processing capacity the input end of Signal-regulated kinase be attached to corresponding vibration acceleration sensor, mouth connects the A/D acquisition module of its correspondence respectively; The A/D acquisition module of settling signal digital to analogy conversion connects with power detecting module and temperature sensor respectively;

The FPGA signal processing module completing Modal Parameter Identification and signal operation processing capacity connects eight A/D acquisition modules, memory module, temperature sensor, Network Interface Module and power detecting module respectively; Described temperature sensor, for detecting the temperature of main frame, ensures its normal working.

The power interface providing direct current 24V to power is connected with power detecting module by power source protective module; Improve power supply reliability, power detecting module connects FPGA signal processing module, temperature sensor and eight A/D acquisition modules respectively.

Specific implementation process: A. arranges one group of eight vibration acceleration sensor at high-speed switch; B. vibration acceleration sensor gathers train by vibration acceleration signal during high-speed switch; C. vibration acceleration signal is carried out signal amplification, filtering, conditioning process through Signal-regulated kinase, then by A/D acquisition module, signal is converted to digital signal; D. digital signal obtains the state parameter of high-speed switch rail after carrying out Signal Pretreatment and modal idenlification by FPGA signal processing module; State parameter carries out scene by memory module and stores, and carries out remote transmission to monitoring center by Network Interface Module simultaneously; By analyzing railroad turnout steel rail state parameter, realize rail failure prediction.

The utility model adopts vibration acceleration signal to carry out data modality analysis and realizes high-speed switch crack monitoring, and multithreading designs, by modular design such as data acquisition, data prediction, Modal Parameter Identification, data communication same in-process; In same process, the switching of thread can not cause process switching, thus improves the concurrent degree of system; Adopt vibration acceleration sensor mode, mechanical contact, can Real-time Obtaining train by high-speed switch time monitoring point vibration acceleration data, by analyzing railroad turnout steel rail state parameter, realize the prediction of high-speed switch rail failure, original data realizes focusing on, improve the safety of data, realize damage forecast reliability and stability.

Claims (1)

1. based on a high-speed switch crackle monitoring device for vibration-mode analysis technology, it is characterized in that, comprise, monitoring main frame and eight vibration acceleration sensors;

Described monitoring main frame includes, eight Signal-regulated kinase, eight A/D acquisition modules, FPGA signal processing module, power interface, power source protective module, power detecting module, energy supply control module, Network Interface Module, memory module and temperature sensors;

Complete the amplification of vibration acceleration signal, filtering, conditioning processing capacity the input end of Signal-regulated kinase be attached to corresponding vibration acceleration sensor, mouth connects the A/D acquisition module of its correspondence respectively; The A/D acquisition module of settling signal digital to analogy conversion connects with power detecting module and temperature sensor respectively;

The FPGA signal processing module completing Modal Parameter Identification and signal operation processing capacity connects eight A/D acquisition modules, memory module, temperature sensor, Network Interface Module and power detecting module respectively;

The power interface providing direct current 24V to power is connected with power detecting module by power source protective module; Power detecting module connects FPGA signal processing module, temperature sensor and eight A/D acquisition modules respectively.