CN209927282U - Pantograph state monitoring system - Google Patents
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- CN209927282U CN209927282U CN201920371952.2U CN201920371952U CN209927282U CN 209927282 U CN209927282 U CN 209927282U CN 201920371952 U CN201920371952 U CN 201920371952U CN 209927282 U CN209927282 U CN 209927282U
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Abstract
The utility model discloses a state monitoring system of pantograph, including vibration impact sensor and signal processor, vibration impact sensor gathers the vibration data and/or the impact data of pantograph, and the vibration data and/or the impact data transmission to signal processor who will gather, signal processor calculates vibration eigenvalue and/or impact eigenvalue according to vibration data and/or impact data, compares vibration eigenvalue and/or impact eigenvalue with the typical eigenvalue of prestore, judges the state of pantograph. Compare image recognition technology among the prior art, the utility model discloses can not receive the restriction of blind area and distance, and vibration data and/or impact data are less for image data, and the data volume is just also faster for the speed of confirming the pantograph state, can confirm the state of pantograph in real time.
Description
Technical Field
The utility model relates to a rail vehicle field especially relates to a state monitoring system of pantograph.
Background
The pantograph is a device which is arranged on rail vehicles such as railway locomotives, urban rail vehicles, motor train units and the like and is used for receiving electric energy from a contact net, and the pantograph is inevitably abnormal along with the increase of the running mileage of the rail vehicles, such as large-degree abrasion and the like, affect the normal operation of the pantograph, the prior art adopts an image monitoring method for monitoring the state of the pantograph, which utilizes a camera device arranged near the pantograph to acquire an image of the pantograph, then the pantograph is monitored by image recognition technology, but the camera device is difficult to recognize local tiny faults due to camera shooting distance and camera shooting blind area, such as hard points of the network cable, cracks of the carbon brush, abnormal wear and the like, and it takes a lot of time to process a large amount of image data through the image recognition technology, so that the real-time performance of the state monitoring is poor.
Therefore, how to provide a solution to the above technical problem is a problem that needs to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a state monitoring system of pantograph, the state monitoring result's that determines is more comprehensive, and the real-time is better.
In order to solve the technical problem, the utility model provides a state monitoring system of pantograph, include:
a vibration impact sensor and a signal processor;
the vibration and impact sensor is used for acquiring vibration data and/or impact data of the pantograph and transmitting the acquired vibration data and/or impact data to the signal processor;
the signal processor is used for receiving the vibration data and/or the impact data acquired by the vibration impact sensor, and calculating a vibration characteristic value and/or an impact characteristic value according to the vibration data and/or the impact data, wherein the vibration characteristic value corresponds to the vibration data, and the impact characteristic value corresponds to the impact data;
the signal processor is further configured to compare the vibration characteristic value and/or the impact characteristic value with a pre-stored typical characteristic value, and determine a first state of the pantograph.
Preferably, the condition monitoring system further comprises a first data storage unit;
the first data storage unit is used for storing the vibration data and/or the impact data and/or storing the vibration characteristic value and/or the impact characteristic value.
Preferably, the first data storage unit is further configured to store the vibration data and/or the impact data and/or store the vibration characteristic value and/or the impact characteristic value when the vibration characteristic value and/or the impact characteristic value reaches a response level when the vibration characteristic value and/or the impact characteristic value is compared with the pre-stored typical characteristic value.
Preferably, the response level comprises an alarm level and/or an early warning level.
Preferably, the first data storage unit is further configured to perform loop-over storage on the vibration characteristic value and/or the impact characteristic value and/or perform loop-over storage on the vibration characteristic value and/or the impact characteristic value when the vibration characteristic value and/or the impact characteristic value is compared with the pre-stored typical characteristic value and the vibration characteristic value and/or the impact characteristic value is within a preset normal value range.
Preferably, the first data storage unit is located within the signal processor,
the signal processor further includes: the device comprises an impact signal extraction module, a vibration signal extraction module, an ADC (analog-to-digital converter) module, a data diagnosis module and a data transmission module;
the impact signal extraction module is used for extracting the impact data output by the vibration impact sensor to obtain an impact digital signal and an impact analog signal, transmitting the impact digital signal to the data diagnosis module, and transmitting the impact analog signal to the ADC module;
the vibration signal extraction module is used for extracting the vibration data output by the vibration impact sensor to obtain a vibration digital signal and a vibration analog signal, transmitting the vibration digital signal to the data diagnosis module, and transmitting the vibration analog signal to the ADC module;
the ADC module is used for performing analog-to-digital conversion on the obtained impact analog signal and the obtained vibration analog signal, caching an impact digital signal and a vibration digital signal obtained after the analog-to-digital conversion, and transmitting the impact digital signal and the vibration digital signal to the diagnosis module;
the data diagnosis module is used for acquiring output data of the ADC module, the impact signal extraction module and the vibration signal extraction module, calculating a vibration characteristic value and/or an impact characteristic value, performing comprehensive decision on the vibration characteristic value and/or the impact characteristic value, and judging the first state; transmitting the acquired output data of the ADC module, the impact signal extraction module and the vibration signal extraction module, the vibration characteristic value and/or the impact characteristic value and the state information of the first state to the first data storage unit;
the data sending module is used for transmitting the state information of the first state to a vehicle-mounted display unit and/or a ground monitoring center; and/or sending the data cached by the ADC module and/or the vibration characteristic value and/or the impact characteristic value and/or the state information of the first state, which are acquired by the data diagnosis module, to a vehicle-mounted host and/or a ground data center.
Preferably, the condition monitoring system further comprises a power converter;
and the power converter is used for acquiring a vehicle-mounted power supply, and supplying power to the signal processor and/or the vibration impact sensor after processing.
Preferably, the signal processor further comprises a power supply processing module;
and the power supply processing module is used for acquiring the electric energy transmitted by the power supply converter, and supplying power to the internal module of the signal processor and/or the vibration impact sensor after processing.
Preferably, the power converter includes:
the input protection module is used for performing at least one of overvoltage protection, overcurrent protection and anti-surge protection on the isolation module and the voltage stabilizing module;
the isolation module is used for isolating the output electric energy of the input protection module from the input electric energy of the voltage stabilizing module;
and the voltage stabilizing module is used for performing voltage stabilizing treatment on the electric energy output by the isolating module and transmitting the electric energy to the vibration impact sensor and/or the signal processor.
Preferably, the condition monitoring system further comprises an image processing unit; the image processing unit comprises an image acquisition device and an image processor;
the image acquisition device is used for acquiring image data of the pantograph and transmitting the acquired image data to the image processor;
the image processor is used for acquiring the image data, comparing the image data with preset typical image data, identifying characteristic image data and determining a second state of the pantograph.
Preferably, the condition monitoring system further comprises a second data storage unit;
the second data storage unit is used for storing the image data and/or the characteristic image data.
Preferably, the second data storage unit is further configured to save the image data and/or the feature image data when the feature image data is compared with the pre-stored typical image data and the feature image data reaches a response level.
Preferably, the response level comprises an alarm level and/or an early warning level.
Preferably, the second data storage unit is further configured to perform loop coverage saving on the image data and/or the feature image data when the feature image data is compared with the pre-stored typical image data and the feature image data is within a preset normal value range.
Preferably, the second data storage unit is located within the image processor.
Preferably, the state monitoring system further comprises a data transmission module and a vehicle-mounted host;
the data transmission module is used for acquiring the vibration data and/or the impact data and/or the vibration characteristic value and/or the impact characteristic value from the signal processor and transmitting the vibration data and/or the impact data and/or the vibration characteristic value and/or the impact characteristic value to the vehicle-mounted host;
the on-board host comprises a third data storage unit;
the third data storage unit is used for storing the vibration data and/or the impact data and/or the vibration characteristic value and/or the impact characteristic value acquired from the data transmission module.
Preferably, the state monitoring system further comprises a data transmission module and a vehicle-mounted host;
the data transmission module is used for acquiring the vibration data and/or the impact data and/or the vibration characteristic value and/or the impact characteristic value from the signal processor and transmitting the vibration data and/or the impact data and/or the vibration characteristic value and/or the impact characteristic value to the vehicle-mounted host;
the data transmission module is used for acquiring the image data and/or the characteristic image data from the image processor and transmitting the image data and/or the characteristic image data to the vehicle-mounted host;
the on-board host comprises a third data storage unit;
the third data storage unit is used for storing the vibration data and/or the impact data and/or the vibration characteristic value and/or the impact characteristic value acquired from the data transmission module and/or the image data and/or the characteristic image data acquired from the image processor.
Preferably, the on-vehicle host further includes a fourth data storage unit; when at least one of the vibration characteristic value and/or the impact characteristic value and/or the characteristic image data reaches an alarm level, the vehicle-mounted host computer extracts the vibration data and/or the impact data, and/or the vibration characteristic value and/or the impact characteristic value, and/or the image data, and/or the characteristic image data at the moment, and stores the vibration data and/or the impact data, and/or the vibration characteristic value and/or the impact characteristic value, and/or the image data, and/or the characteristic image data to the fourth data storage unit.
Preferably, the vehicle-mounted host comprises an alarm prompting unit;
and the alarm prompting unit is used for carrying out alarm prompting according to the judgment result of the signal processor and/or the image processor on the pantograph state.
Preferably, the first state is characterized by a pantograph bias worn state, and/or a pantograph hard point state, and/or a network cable hard point state.
Preferably, the second state is characterized by a pantograph arcing state, and/or an arcing rate state, and/or an arcing intensity state, and/or a pantograph frictional heat abnormal state.
It can be seen, the utility model discloses in, vibration impact sensor can gather the vibration data and/or the impact data of pantograph, then determines the state of pantograph according to vibration data and/or impact data again, compares in the image recognition technology among the prior art, the utility model provides a vibration data and/or impact data can not receive the restriction of blind area and distance, can judge the state of pantograph comprehensively according to vibration data and/or impact data, and vibration data and/or impact data for image data, the data bulk is less, and the speed of confirming the pantograph state is also faster, can determine the state of pantograph in real time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the prior art and the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a pantograph state monitoring system according to an embodiment of the present invention;
fig. 2 is another schematic structural diagram of a pantograph state monitoring system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a pantograph state monitoring system according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a pantograph state monitoring system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a pantograph state monitoring system according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a pantograph state monitoring system according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a pantograph state monitoring system according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a system for monitoring a state of a pantograph according to an embodiment of the present invention.
Detailed Description
The core of the utility model is to provide a state monitoring system of pantograph, the state monitoring result who determines is more comprehensive, and the real-time is better.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a pantograph state monitoring system according to the present invention, including: a vibration impact sensor 10 and a signal processor 11;
the vibration and impact sensor 10 is used for acquiring vibration data and/or impact data of the pantograph and transmitting the acquired vibration data and/or impact data to the signal processor 11;
the signal processor 11 is configured to receive vibration data and/or impact data acquired by the vibration and impact sensor 10, and calculate a vibration characteristic value and/or an impact characteristic value according to the vibration data and/or the impact data, where the vibration characteristic value corresponds to the vibration data and the impact characteristic value corresponds to the impact data;
the signal processor 11 is further configured to compare the vibration characteristic value and/or the impact characteristic value with a pre-stored typical characteristic value, and determine the first state of the pantograph.
Specifically, the process of acquiring the vibration data and/or the impact data of the pantograph by the vibration and impact sensor 10 is analyzed as follows:
the pantograph will continuously contact with the contact net at rail vehicle's operation in-process, and vibration and the impact of small-amplitude can take place to be inevitable, and the produced vibration of pantograph under the state of difference and impact have different characteristics, however the embodiment of the utility model provides a can gather vertical, horizontal and fore-and-aft acceleration information of pantograph bow and vertical impact information comparatively easily through vibration impact sensor. The vertical, transverse and longitudinal acceleration information of the bow head can be understood as vibration data; vertical impact information can be understood as impact data. If the pantograph head of the pantograph has vertical, transverse and longitudinal acceleration changes, the vibration impact sensor 10 can acquire vibration data; if the head of the pantograph is vertically impacted, the vibration impact sensor 10 can acquire impact data; the vibratory impact sensor 10 is able to acquire vibration data and impact data if there are vertical, lateral and longitudinal acceleration changes and vertical impacts at the same time. The vibration impact sensor is an MEMS (Micro-Electro-Mechanical System) sensitive element, which has the advantages of good low-frequency characteristic, durability, small volume, and the like, and besides the MEMS sensitive element, the vibration impact sensor 10 may be of other types, such as a piezoelectric ceramic, a piezoelectric acceleration sensor, and the like, without limitation.
Specifically, the process analysis of the signal processor 11 for determining the state of the force-bearing bow according to the vibration data and/or the impact data is as follows:
the typical characteristic value pre-stored by the signal processor 11 is used as a standard for reference, and different determination results are determined by determining a difference between the characteristic value and the pre-stored typical characteristic value, and the pre-stored typical characteristic value can be determined by using the vibration impact data of the pantograph in a normal state, for example, an average value of a large number of vibration impact data in the normal state is used as the typical characteristic value, and the state of the pantograph determined according to the typical characteristic value can be more accurate;
after receiving the vibration data and/or the impact data collected by the vibration impact sensor 10, the signal processor 11 calculates a vibration characteristic value and/or an impact characteristic value according to the vibration data and/or the impact data, where the vibration characteristic value corresponds to the vibration data, and the impact characteristic value corresponds to the impact data, and since the pantograph has different motion characteristics in different states, these characteristics may be embodied in the vibration data and/or the impact data, for example, when a certain part of the pantograph head is seriously worn, the vibration data and/or the impact data generated in the process of sliding with the catenary may change due to the uneven surface of the pantograph head, which may be finally embodied in the amplitude characteristic of the vibration impact data, so the embodiment of the present invention first extracts the characteristic value in the vibration data and/or the impact data, and then the state of the pantograph is further determined according to the characteristic value, so that the state of the pantograph can be scientifically and accurately determined. The characteristic value may include a plurality of different types, and the embodiment of the present invention is not limited herein;
wherein, it may be determined that different determination results may be obtained by determining a difference between the characteristic value and a pre-stored typical characteristic value, for example, whether the characteristic value a is greater than the typical characteristic value may be determined, when the characteristic value a is greater than the typical characteristic value, it is determined that the fault a exists in the pantograph, and when the characteristic value a is not greater than the typical characteristic value, it is determined that the fault a does not exist in the pantograph, of course, in addition to the listed examples, other types of comparisons may be performed on the characteristic value and the typical characteristic value, and embodiments of the present invention are not limited herein;
the typical characteristic value can be a group of data or even a range, such as a normal vibration amplitude range, besides a single threshold value, and in this case, the state of the pantograph can be determined by judging whether the current vibration amplitude of the pantograph is within the normal vibration amplitude range;
except that whether a certain characteristic value of the pantograph is normal or not is simply judged, several different levels can be set for characteristic judgment of each characteristic value, such as an optimal state, a suboptimal state, a medium state, a poor state, a very poor state and the like, the utility model can be realized by setting the typical characteristic value into thresholds of multiple levels, for example, the typical characteristic value of the amplitude value can be set into thresholds of three levels, including an optimal state threshold, a medium state threshold and a poor state threshold, the amplitude values corresponding to the several state thresholds can be in a relationship of sequentially increasing, when the amplitude value reaches the medium state threshold, the wear degree of the pantograph can be determined to be the medium state and the like, and the embodiment of the utility model is not limited herein;
the vibration characteristic value can be at least one of an acceleration value and an amplitude value, the impact characteristic value can be an impact value, and the characteristic value can comprise other types except the acceleration value, the amplitude value and the impact value, and the embodiment of the utility model discloses does not limit here;
the acceleration value can represent the acceleration of the pantograph in the action process, the amplitude value can represent the maximum distance value of the pantograph deviating from the original position in the action process, the impact value can represent the energy of the pantograph impacted in the action process, and the like, and the three characteristic values can also respectively determine different fault types, for example, the amplitude value can determine the fault types such as the abrasion degree of the pantograph, the impact value can determine the fault types such as the hard points of a network cable, when the abrasion degree of a certain position of the pantograph is heavier, the movable space of the pantograph can be increased, and the amplitude values generated in the friction vibration and the impact vibration process of the pantograph can be different, so the abrasion degree of the pantograph can be accurately determined through the amplitude value, and the acceleration value and the impact value also have corresponding fault types;
wherein, the judgment of whether the pantograph has the corresponding type of fault through the acceleration value, the amplitude value and the impact value can be used for judging whether the pantograph has the corresponding type of fault which is higher than the highest limit value, and the pantograph can be determined to have the corresponding type of fault if the pantograph has the corresponding type of fault which is higher than the highest limit value, for example, the collected impact value is compared with the highest limit value of the impact value, when the collected impact value is larger than the highest limit value of the impact value, the fault of the hard point of the network cable in the pantograph can be determined, when the collected acceleration value is higher than the highest limit, the pantograph can be determined to have faults of loosening and the like, when the acquired amplitude value is higher than the highest limit, the pantograph can be determined to have faults such as abnormal abrasion and the like, workers can carry out targeted maintenance according to the determined specific faults, for example, when the pantograph is abnormally worn, relevant parts and the like can be replaced, so that the working efficiency is improved;
of course, besides independently judging whether each characteristic value is higher than the maximum limit value to determine a corresponding fault, several characteristic values can be integrated to determine a specific fault, for example, whether the pantograph has a D fault is determined by comprehensively judging three characteristic values of ABC and typical characteristic values, in this case, more types and more detailed faults of the pantograph can be found, so that the state of the pantograph can be more comprehensively evaluated, the overhaul work of workers on the pantograph is facilitated, and the service life of the pantograph is prolonged;
specifically, most of more important fault types of the pantograph can be determined through the acceleration value, the amplitude value and the impact value, and the characteristic values are controlled to be three, so that the calculated data volume can be reduced, and the real-time performance of the finally obtained state result is further improved;
it should be noted that the first state may be characterized by a pantograph eccentric wear state, and/or a pantograph hard point state, and/or a cable hard point state. Of course, there may be other types besides the above states, and the embodiments of the present invention are not exhaustive here.
The embodiment of the utility model provides an in, can acquire the vibration impact data of pantograph at first, then confirm the state of pantograph according to vibration impact data, compare in image recognition technology, vibration data and/or impact data can not receive the restriction of blind area and camera distance, can confirm the state of pantograph comprehensively according to vibration data and/or impact data, and the data bulk of vibration data and/or impact data is far less than image data, the great quilt of the time that the computational process consumes is shortened, the real-time of judged result has been improved.
In order to increase the reliability of the determination result of the state of the pantograph, it is also necessary to store the vibration data and/or the impact data and the vibration characteristic value and/or the impact characteristic value, thereby ensuring that the determination result of the state of the pantograph is traceable.
Optionally, referring to fig. 2, the condition monitoring system further comprises a first data storage unit 22;
the first data storage unit 22 is used for storing vibration data and/or impact data and/or storing vibration characteristic values and/or impact characteristic values.
Specifically, the typical characteristic value pre-stored by the signal processor 21 may not only be a standard for determining the state of the pantograph, but also reflect the current state level of the pantograph, and if the vibration characteristic value and/or the impact characteristic value exceed a preset normal value range, it indicates that the pantograph reaches a response level, and the response level may be classified as an alarm level and/or an early warning level.
Specifically, the first data storage unit 22 stores the vibration data and/or the impact data and/or stores the vibration characteristic value and/or the impact characteristic value when the vibration characteristic value and/or the impact characteristic value is compared with a pre-stored typical characteristic value and the vibration characteristic value and/or the impact characteristic value reaches a response level;
the first data storage unit 22 performs cyclic coverage storage on the vibration data and/or the impact data and/or performs cyclic coverage storage on the vibration characteristic value and/or the impact characteristic value when the vibration characteristic value and/or the impact characteristic value are compared with the pre-stored typical characteristic value and the vibration characteristic value and/or the impact characteristic value are within a preset normal value range. The cyclic coverage saving is performed in consideration of the limited data storage capacity of the first data storage unit 22, so that the vibration characteristic value and/or the impact characteristic value within the preset normal value range can be covered with the previously saved vibration characteristic value and/or impact characteristic value, for example, only the latest one thousand vibration data and/or impact data can be saved, thereby saving the storage space.
In the above embodiment, only the first data storage unit is included in the condition monitoring system, but it is not described in which device the first data storage unit is specifically disposed, in the embodiment shown in fig. 3 below, the first data storage unit 311 is located in the signal processor 31,
the signal processor 31 further includes: an impact signal extraction module 312, a vibration signal extraction module 313, an ADC module 314, a data diagnosis module 315, and a data transmission module 316;
the impact signal extraction module 312 is configured to extract impact data output by the vibration impact sensor 30 to obtain an impact digital signal and an impact analog signal, transmit the impact digital signal to the data diagnosis module, and transmit the impact analog signal to the ADC module 314;
the vibration signal extraction module 313 is configured to extract vibration data output by the vibration impact sensor 30 to obtain a vibration digital signal and a vibration analog signal, transmit the vibration digital signal to the data diagnosis module, and transmit the vibration analog signal to the ADC module 314;
the ADC module 314 is configured to perform analog-to-digital conversion on the obtained impact analog signal and vibration analog signal, buffer the impact digital signal and vibration digital signal obtained after the analog-to-digital conversion, and transmit the buffered impact digital signal and vibration digital signal to the data diagnosis module 315; specifically, the ADC module 314 may include an ADC chip and a control unit, where the control unit is configured to control the ADC chip to perform analog-to-digital conversion, buffer data, and provide a data output interface, and it should be noted that, in the embodiment of the present invention, the ADC module 314 is integrated inside the signal processor 31, and the ADC module 314 may also be independently arranged in practical application, which is not limited herein;
the data diagnosis module 315 is configured to obtain output data of the ADC module 314, the impact signal extraction module 312, and the vibration signal extraction module 313, calculate a vibration characteristic value and/or an impact characteristic value, perform a comprehensive decision on the vibration characteristic value and/or the impact characteristic value, and determine a first state; transmitting the acquired output data, the vibration characteristic value and/or the impact characteristic value of the ADC module 314, the impact signal extraction module 312 and the vibration signal extraction module 313, and the state information of the first state to the first data storage unit 311;
the data sending module 316 is configured to transmit the state information of the first state to the vehicle-mounted display unit and/or the ground monitoring center; and/or sending the data cached by the ADC module and/or the vibration characteristic value and/or the impact characteristic value and/or the state information of the first state, which are acquired by the data diagnosis module, to the vehicle-mounted host and/or the ground data center.
Optionally, as shown in fig. 4, the condition monitoring system further includes a power converter 43;
and the power converter 43 is used for acquiring a vehicle-mounted power supply, and supplying power to the signal processor 41 and/or the vibration impact sensor 40 after processing. The power converter 43 is mounted on the base of the pantograph in parallel with the signal processor 41, and supplies power to the signal processor 41 and the vibration/impact sensor 40. The power converter 43 is located in the high voltage region of DC1500V, and its connected cable must pass through the high voltage region to obtain DC110V power at the rooftop air conditioner opening or other region in the low voltage region; the power converter 43 is located in the high voltage region and is connected to the low voltage region, so that it is strictly prevented from leaking electricity to prevent it from endangering passengers. Therefore, the pressure resistance of the front and rear isolation stages is more than or equal to AC6000V, and the requirement of IP67 waterproof grade is met.
Specifically, the signal processor 41 further includes a power processing module 410, and the power processing module 410 obtains the electric energy transmitted by the power converter 43, processes the electric energy and supplies power to the internal module of the signal processor 41 and/or the vibration impact sensor 40.
Specifically, the power converter 43 includes:
the input protection module 431 is used for performing at least one of overvoltage protection, overcurrent protection and anti-surge protection on the isolation module and the voltage stabilizing module;
the isolation module 432 is used for isolating the output electric energy of the input protection module 431 from the input electric energy of the voltage stabilizing module 433, and preventing the electric energy output by the vehicle-mounted power supply from interfering with the vibration impact sensing module and preventing electric shock;
and the voltage stabilizing module 433 is used for performing voltage stabilizing processing on the electric energy output by the isolation module and transmitting the electric energy to the vibration impact sensor 40 and/or the signal processor 42.
In this case, the isolation module 432 can also perform voltage reduction processing on the electric energy output by the input protection module 431, so as to provide a more appropriate input voltage for the voltage stabilizing module 433.
The state of the pantograph is determined by using the vibration data and/or the impact data in the above embodiment scheme, and the scheme of the present invention can be combined with the existing image recognition, so as to make the state determination of the pantograph more accurate, and increase the types of states that can be determined, for example, the arcing state and/or the arcing rate state and/or the arcing intensity state and/or the abnormal state of the frictional heat of the pantograph, which can be determined by observing the image of the pantograph. This is illustrated by the embodiment of fig. 5. Fig. 5 is a schematic structural diagram of a state monitoring system of a pantograph according to the present invention, which includes, in addition to the vibration impact sensor 50 and the signal processor 51: an image processing unit 52;
the image processing unit 52 includes an image pickup device 521 and an image processor 522;
an image acquisition device 521, configured to acquire image data of the pantograph and transmit the acquired image data to the image processor 522;
an image processor 522 for acquiring the image data, comparing the image data with the preset typical image data, recognizing the characteristic image data, and determining the second state of the pantograph.
Specifically, the second state is characterized by an arcing state of the pantograph, and/or an arcing rate state, and/or an arcing intensity state, and/or a frictional heat abnormal state of the pantograph.
The embodiment of the utility model provides an in, state monitoring system still has the ability of confirming the second state of pantograph through image data, consequently, state monitoring system not only can judge first state according to vibration data and/or impact data, can also judge the second state through image data, and both combine together and can diagnose the multiple state of pantograph simultaneously, have increased the accuracy that the state of pantograph was judged.
Optionally, referring to fig. 6, the condition monitoring system further includes a second data storage unit 63;
a second data storage unit 63 for storing image data, and/or characteristic image data.
Specifically, the second data storage unit 63 saves the image data and/or the feature image data when the feature image data is compared with the pre-stored typical image data and the feature image data reaches the response level. The response level comprises an alarm level and/or an early warning level;
the second data storage unit 63 performs loop coverage storage on the image data and/or the characteristic image data when the characteristic image data is compared with the pre-stored typical image data and the characteristic image data is within a preset normal value range. In consideration of the limitation of the data storage capacity of the first data storage unit 63, the vibration characteristic value and/or the impact characteristic value within the preset normal value range may overwrite the previously saved value, thereby saving the storage space. The second data storage unit 63 may specifically be located within the image processor 622.
In the embodiment shown in fig. 1, the vibration data and/or the impact data and the vibration characteristic value and/or the impact characteristic value may be stored in the on-board host, which is specifically described with reference to the embodiment shown in fig. 7, as shown in fig. 7, the status monitoring system further includes a data transmission module 72 and an on-board host 73;
a data transmission module 72, configured to obtain the vibration data and/or the impact data, and/or the vibration characteristic value and/or the impact characteristic value from the signal processor 71, and transmit the vibration data and/or the impact data, and/or the vibration characteristic value and/or the impact characteristic value to the on-board host 73;
the in-vehicle host 73 includes a third data storage unit 74;
and a third data storage unit 74 for storing the vibration data and/or the impact data, and/or the vibration characteristic value and/or the impact characteristic value acquired from the data transmission module 72.
In the embodiment shown in fig. 5, the vibration data and/or the impact data, the vibration characteristic value and/or the impact characteristic value, the image data, and the image characteristic data may be stored in the on-board host, which is described in detail with reference to the embodiment shown in fig. 8, and as shown in fig. 8, the status monitoring system further includes a data transmission module 83 and an on-board host 84;
the data transmission module 83 is used for acquiring the vibration data and/or the impact data and/or the vibration characteristic value and/or the impact characteristic value from the signal processor 81 and transmitting the vibration data and/or the impact data and/or the vibration characteristic value and/or the impact characteristic value to the vehicle-mounted host 84;
a data transmission module 83 for acquiring image data and/or characteristic image data from the image processor 822 and transmitting the image data and/or characteristic image data to the in-vehicle host 84;
the in-vehicle host 84 includes a third data storage unit 85;
a third data storage unit 85 for storing the vibration data and/or the impact data and/or the vibration characteristic value and/or the impact characteristic value acquired from the data transmission module 83 and/or the image data and/or the characteristic image data acquired from the image processor 82.
Specifically, the on-board host 84 further includes a fourth data storage unit 86, and when at least one of the vibration characteristic value and/or the impact characteristic value and/or the characteristic image data reaches the alarm level, the on-board host 84 extracts the vibration data and/or the impact data, and/or the vibration characteristic value and/or the impact characteristic value, and/or the image data, and/or the characteristic image data at that time, and stores the vibration data and/or the impact data, and/or the vibration characteristic value and/or the impact characteristic value, and/or the image data, and/or the characteristic image data in the fourth data storage unit 86.
Optionally, with continued reference to fig. 8, the on-board host 84 further includes an alarm prompt unit 87;
and an alarm prompt unit 87 for giving an alarm prompt according to the judgment result of the pantograph state by the signal processor 81 and/or the image processor 82.
Specifically, the alarm prompting unit 87 may be an alarm device or an alarm device having the capability of emitting a distinct signal that prompts the user, for example, the alarm prompting unit 87 has a component that emits a bell sound, or is equipped with a light bulb that emits a red light, or the like.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (21)
1. A pantograph condition monitoring system, comprising: a vibration impact sensor and a signal processor;
the vibration and impact sensor is used for acquiring vibration data and/or impact data of the pantograph and transmitting the acquired vibration data and/or impact data to the signal processor;
the signal processor is used for receiving the vibration data and/or the impact data acquired by the vibration impact sensor and calculating a vibration characteristic value and/or an impact characteristic value according to the vibration data and/or the impact data;
the signal processor is further configured to compare the vibration characteristic value and/or the impact characteristic value with a pre-stored typical characteristic value, and determine a first state of the pantograph.
2. The condition monitoring system according to claim 1, further comprising a first data storage unit;
the first data storage unit is used for storing the vibration data and/or the impact data and/or storing the vibration characteristic value and/or the impact characteristic value.
3. The condition monitoring system according to claim 2,
the first data storage unit is further used for storing the vibration data and/or the impact data and/or storing the vibration characteristic value and/or the impact characteristic value when the vibration characteristic value and/or the impact characteristic value is compared with the pre-stored typical characteristic value and the vibration characteristic value and/or the impact characteristic value reaches a response level.
4. The condition monitoring system of claim 3, wherein the response level comprises an alarm level and/or an early warning level.
5. A condition monitoring system according to any of claims 2 to 4,
the first data storage unit is further configured to perform cyclic coverage storage on the vibration data and/or the impact data and/or perform cyclic coverage storage on the vibration characteristic value and/or the impact characteristic value when the vibration characteristic value and/or the impact characteristic value is compared with the pre-stored typical characteristic value and the vibration characteristic value and/or the impact characteristic value is within a preset normal value range.
6. The condition monitoring system according to claim 2, wherein the first data storage unit is located within the signal processor,
the signal processor further includes: the device comprises an impact signal extraction module, a vibration signal extraction module, an ADC (analog-to-digital converter) module, a data diagnosis module and a data transmission module;
the impact signal extraction module is used for extracting the impact data output by the vibration impact sensor to obtain an impact digital signal and an impact analog signal, transmitting the impact digital signal to the data diagnosis module, and transmitting the impact analog signal to the ADC module;
the vibration signal extraction module is used for extracting the vibration data output by the vibration impact sensor to obtain a vibration digital signal and a vibration analog signal, transmitting the vibration digital signal to the data diagnosis module, and transmitting the vibration analog signal to the ADC module;
the ADC module is used for performing analog-to-digital conversion on the obtained impact analog signal and the obtained vibration analog signal, caching an impact digital signal and a vibration digital signal obtained after the analog-to-digital conversion, and transmitting the impact digital signal and the vibration digital signal to the data diagnosis module;
the data diagnosis module is used for acquiring output data of the ADC module, the impact signal extraction module and the vibration signal extraction module, calculating a vibration characteristic value and/or an impact characteristic value, performing comprehensive decision on the vibration characteristic value and/or the impact characteristic value, and judging the first state; transmitting the acquired output data of the ADC module, the impact signal extraction module and the vibration signal extraction module, the vibration characteristic value and/or the impact characteristic value and the state information of the first state to the first data storage unit;
the data sending module is used for transmitting the state information of the first state to a vehicle-mounted display unit and/or a ground monitoring center; and/or sending the data cached by the ADC module and/or the vibration characteristic value and/or the impact characteristic value and/or the state information of the first state, which are acquired by the data diagnosis module, to a vehicle-mounted host and/or a ground data center.
7. The condition monitoring system according to claim 1 or 6, further comprising a power converter;
and the power converter is used for acquiring a vehicle-mounted power supply, and supplying power to the signal processor and/or the vibration impact sensor after processing.
8. The condition monitoring system of claim 7, wherein the signal processor further comprises a power processing module;
and the power supply processing module is used for acquiring the electric energy transmitted by the power supply converter, and supplying power to the internal module of the signal processor and/or the vibration impact sensor after processing.
9. The condition monitoring system of claim 7, wherein the power converter comprises:
the input protection module is used for performing at least one of overvoltage protection, overcurrent protection and anti-surge protection on the isolation module and the voltage stabilizing module;
the isolation module is used for isolating the output electric energy of the input protection module from the input electric energy of the voltage stabilizing module;
and the voltage stabilizing module is used for performing voltage stabilizing treatment on the electric energy output by the isolating module and transmitting the electric energy to the vibration impact sensor and/or the signal processor.
10. The condition monitoring system according to claim 1, further comprising an image processing unit; the image processing unit comprises an image acquisition device and an image processor;
the image acquisition device is used for acquiring image data of the pantograph and transmitting the acquired image data to the image processor;
the image processor is used for acquiring the image data, comparing the image data with preset typical image data, identifying characteristic image data and determining a second state of the pantograph.
11. The condition monitoring system of claim 10, further comprising a second data storage unit;
the second data storage unit is used for storing the image data and/or the characteristic image data.
12. The condition monitoring system according to claim 11,
the second data storage unit is further configured to save the image data and/or the feature image data when the feature image data is compared with the pre-stored typical image data and the feature image data reaches a response level.
13. The condition monitoring system of claim 12, wherein the response level comprises an alarm level and/or an early warning level.
14. A condition monitoring system according to any of claims 11 to 13,
the second data storage unit is further configured to perform loop coverage storage on the image data and/or the feature image data when the feature image data is compared with the pre-stored typical image data and the feature image data is within a preset normal value range.
15. The condition monitoring system of claim 14, wherein the second data storage unit is located within the image processor.
16. The condition monitoring system according to claim 1, further comprising a data transmission module, an on-board host;
the data transmission module is used for acquiring the vibration data and/or the impact data and/or the vibration characteristic value and/or the impact characteristic value from the signal processor and transmitting the vibration data and/or the impact data and/or the vibration characteristic value and/or the impact characteristic value to the vehicle-mounted host;
the on-board host comprises a third data storage unit;
the third data storage unit is used for storing the vibration data and/or the impact data and/or the vibration characteristic value and/or the impact characteristic value acquired from the data transmission module.
17. The condition monitoring system according to claim 10, further comprising a data transmission module, an on-board host;
the data transmission module is used for acquiring the vibration data and/or the impact data and/or the vibration characteristic value and/or the impact characteristic value from the signal processor and transmitting the vibration data and/or the impact data and/or the vibration characteristic value and/or the impact characteristic value to the vehicle-mounted host;
the data transmission module is used for acquiring the image data and/or the characteristic image data from the image processor and transmitting the image data and/or the characteristic image data to the vehicle-mounted host;
the on-board host comprises a third data storage unit;
the third data storage unit is used for storing the vibration data and/or the impact data and/or the vibration characteristic value and/or the impact characteristic value acquired from the data transmission module and/or the image data and/or the characteristic image data acquired from the image processor.
18. The condition monitoring system according to claim 17, wherein the on-board host further comprises a fourth data storage unit; when at least one of the vibration characteristic value and/or the impact characteristic value and/or the characteristic image data reaches an alarm level, the vehicle-mounted host computer extracts the vibration data and/or the impact data, and/or the vibration characteristic value and/or the impact characteristic value, and/or the image data, and/or the characteristic image data at the moment, and stores the vibration data and/or the impact data, and/or the vibration characteristic value and/or the impact characteristic value, and/or the image data, and/or the characteristic image data to the fourth data storage unit.
19. The condition monitoring system according to claim 18, wherein the on-board host includes an alarm prompting unit;
and the alarm prompting unit is used for carrying out alarm prompting according to the judgment result of the signal processor and/or the image processor on the pantograph state.
20. The condition monitoring system according to claim 1, wherein the first condition is characterized by a pantograph partial wear condition, and/or a pantograph hard-spot condition, and/or a cable hard-spot condition.
21. The condition monitoring system according to claim 10, wherein the second condition is characterized by a pantograph arcing condition, and/or an arcing rate condition, and/or an arcing intensity condition, and/or a pantograph frictional heat anomaly condition.
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| CN201920371952.2U CN209927282U (en) | 2019-03-22 | 2019-03-22 | Pantograph state monitoring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111169487A (en) * | 2020-02-19 | 2020-05-19 | 齐鲁工业大学 | Collector shoe arc-discharge early-warning intelligent measurement and control device, metro vehicle and control method thereof |
| CN112858843A (en) * | 2021-03-25 | 2021-05-28 | 天津益昌电气设备股份有限公司 | Acquisition and analysis device for monitoring bow net pressure hard points on line |
| CN114543978A (en) * | 2022-01-11 | 2022-05-27 | 北京电子工程总体研究所 | Vibration impact sensor based on 485 bus |
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2019
- 2019-03-22 CN CN201920371952.2U patent/CN209927282U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111169487A (en) * | 2020-02-19 | 2020-05-19 | 齐鲁工业大学 | Collector shoe arc-discharge early-warning intelligent measurement and control device, metro vehicle and control method thereof |
| CN112858843A (en) * | 2021-03-25 | 2021-05-28 | 天津益昌电气设备股份有限公司 | Acquisition and analysis device for monitoring bow net pressure hard points on line |
| CN114543978A (en) * | 2022-01-11 | 2022-05-27 | 北京电子工程总体研究所 | Vibration impact sensor based on 485 bus |
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