CN113701872B - Data synchronization method and system for vibration protection - Google Patents
Data synchronization method and system for vibration protection Download PDFInfo
- Publication number
- CN113701872B CN113701872B CN202110905484.4A CN202110905484A CN113701872B CN 113701872 B CN113701872 B CN 113701872B CN 202110905484 A CN202110905484 A CN 202110905484A CN 113701872 B CN113701872 B CN 113701872B
- Authority
- CN
- China
- Prior art keywords
- vibration
- sampling
- acquisition module
- information
- acquisition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000005070 sampling Methods 0.000 claims abstract description 98
- 230000001360 synchronised effect Effects 0.000 claims abstract description 68
- 230000007246 mechanism Effects 0.000 claims description 19
- 230000001133 acceleration Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 description 15
- 230000005856 abnormality Effects 0.000 description 9
- 230000000737 periodic effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000001914 filtration Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010801 machine learning Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The application discloses a data synchronization method and a system for vibration protection, and the data synchronization method for vibration protection comprises the following steps: presetting a reference vibration signal and a fixed point number; acquiring vibration information in real time through a first acquisition module, and counting the number of synchronous points synchronous with the vibration reference signal based on the vibration information; when the number of the synchronous points is the same as the number of the fixed points, the first acquisition module sends a synchronous acquisition instruction to each second acquisition module; and the second acquisition module starts real-time sampling after receiving the synchronous acquisition instruction until the second acquisition module receives the synchronous acquisition instruction again to finish the acquisition of information in a single sampling period. According to the data synchronization method for vibration protection, the number of actual fixed points is counted through the first acquisition module and compared with the number of set fixed points, and when the main vibration acquisition module cannot generate synchronous signals, data interception and acquisition can be completed.
Description
Technical Field
The present application relates generally to the field of vibration monitoring technologies, and in particular, to a data synchronization method and system for vibration protection.
Background
In the field of fault diagnosis of mechanical equipment, the working condition of the mechanical equipment is generally analyzed and judged by means of collected real-time signals. For equipment comprising a vibration device, various physical quantities and electric signals output by a vibration signal sensor need to be acquired in real time, including: rotational speed, acceleration, velocity, and eddy currents.
Conventional synchronous acquisition schemes for sensor data typically achieve synchronization via a key phase signal mounted on the device sensor. However, the vibration protection system designed under the traditional method is independent of the intelligent early warning system, certain potential safety hazards exist in the independent vibration protection, and meanwhile, the cost is increased while the workload is increased for installation and maintenance of field equipment.
Disclosure of Invention
In view of the above-mentioned defects or shortcomings in the prior art, it is desirable to provide a data synchronization method and system for vibration protection, which can solve the safety problem caused by the mutual independence of the existing vibration protection system and the intelligent early warning system.
In a first aspect, the present application provides a data synchronization method for vibration protection, including:
presetting a reference vibration signal and a fixed point number;
collecting vibration information in real time through a first collecting module, and counting the number of synchronous points synchronous with the reference vibration signal based on the vibration information;
when the number of the synchronous points is the same as the number of the fixed points, the first acquisition module sends a synchronous acquisition instruction to each second acquisition module;
and the second acquisition module starts real-time sampling after receiving the synchronous acquisition instruction until the second acquisition module receives the synchronous acquisition instruction again to finish the acquisition of information in a single sampling period.
Optionally, the number of the first collecting modules is one, and the preset reference vibration signal and the fixed point number include:
through vibration information in single sampling period is gathered as reference vibration signal to first collection module, is based on reference vibration signal sets up the fixed point number.
Further, the counting the number of synchronization points synchronized with the reference vibration signal based on the vibration information includes:
acquiring a sampling serial number of a first acquisition module at the current sampling moment and sampling data corresponding to the sampling serial number;
judging whether the sampling data is the same as the vibration value corresponding to the same sampling sequence number in the reference vibration signal;
if the sampling numbers are the same, counting the sampling numbers as the number of the synchronous points.
Optionally, the number of the first collecting modules is multiple, and the preset reference vibration signal and the fixed point number include:
one of the first acquisition modules is selected as a reference acquisition module, vibration information in a single sampling period acquired in real time on the reference acquisition module is preset as a reference vibration signal, and the number of points is preset based on the reference acquisition module.
Further, the counting the number of synchronization points synchronized with the reference vibration signal based on the vibration information includes:
acquiring a sampling serial number and reference sampling data corresponding to the sampling serial number based on vibration information acquired in real time on the reference acquisition module;
acquiring real-time vibration values with the same sampling sequence number based on vibration information acquired by other first acquisition modules except the reference acquisition module in real time;
judging whether the reference sampling data is the same as the real-time vibration value;
if the sampling numbers are the same, counting the sampling numbers as the number of the synchronous points.
Optionally, the first acquisition module sends the synchronous acquisition instruction to each of the second acquisition modules in a form of a broadcast frame, where the broadcast frame includes a timestamp and a data length.
Further, the method further comprises:
presetting the number of protection points of the first acquisition module;
sending the protection point number serving as a data length to each second acquisition module through a synchronous acquisition instruction;
acquiring preset length vibration information acquired by a first acquisition module and preset length sampling information acquired by a second acquisition module based on the number of protection points;
judging whether the preset length vibration information and the preset length sampling information reach a preset alarm threshold value or not based on the preset length vibration information and the preset length sampling information;
if so, starting a vibration protection mechanism.
Further, the method further comprises:
presetting the maximum protection point number of the second acquisition module;
if the synchronous acquisition instruction is received, acquiring maximum length sampling information acquired by the second acquisition module by taking the maximum protection point number as a data length;
judging whether the maximum length sampling information reaches a preset alarm threshold value or not based on the maximum length sampling information;
if so, starting a vibration protection mechanism.
Optionally, the sampling information collected by the second collecting module includes one or more of speed information, acceleration information, and eddy current information.
In a second aspect, the present application provides a data synchronization system for vibration protection, comprising:
the machine control module is configured to preset a reference vibration signal and fixed point points;
the first acquisition module is configured to acquire vibration information in real time and count the number of synchronous points synchronous with the reference vibration signal based on the vibration information; the first acquisition module is configured to send a synchronous acquisition instruction to each second acquisition module when the number of the synchronous points is the same as the number of the fixed point points;
the second acquisition module is configured to start real-time sampling after receiving the synchronous acquisition instruction until the second acquisition module receives the synchronous acquisition instruction again and finishes the acquisition of information in a single sampling period;
the protection module is configured to execute a protection mechanism on the protected device based on the vibration information collected by the first collection module and the sampling information collected by the second collection module.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
according to the data synchronization method for vibration protection, the number of actual fixed point points is counted by the first acquisition module and is compared with the set fixed point number, so that data can be intercepted and acquired when the main vibration acquisition module cannot generate a synchronization signal; the cost is saved, the safety and the stability are improved, the early warning and the vibration protection are integrated in the same frame, and the workload of installation and maintenance of field equipment is reduced.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a flowchart of a data synchronization method for vibration protection according to an embodiment of the present application;
fig. 2 is a flowchart of a method for counting synchronization points according to an embodiment of the present application;
fig. 3 is a schematic waveform diagram of a vibration signal provided by an embodiment of the present application;
FIG. 4 is a flow chart of another method for counting synchronization points according to an embodiment of the present disclosure;
fig. 5 is a flowchart of a first protection mechanism method provided by an embodiment of the present application;
fig. 6 is a flowchart of a second protection mechanism method provided by an embodiment of the present application;
FIG. 7 is a flow chart of a method for implementing a protection mechanism provided by an embodiment of the present application;
fig. 8 is a connection diagram of a data synchronization system for vibration protection according to an embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
And when the data of different sensors are synchronously acquired, the synchronous signals are transmitted through the channels. However, in the signal transmission process, there may be a problem of poor synchronization accuracy due to system time error.
The system time error comprises a clock error, a program time difference and a packet loss time difference. The clock error is the error of a clock source relative to the standard time of the satellite, the program time difference is the error of the running time of the compiling program relative to the standard running time, and the packet loss time difference is the time error caused by the packet loss rate difference of data transmission between the acquisition module and the host in each subsystem.
Referring to fig. 1 in detail, the present application provides a data synchronization method for vibration protection, comprising:
s02, presetting a reference vibration signal and a fixed point number;
s04, collecting vibration information in real time through a first collecting module, and counting the number of synchronous points synchronous with the reference vibration signal based on the vibration information;
s06, when the number of the synchronous points is the same as the number of the fixed points, the first acquisition module sends synchronous acquisition instructions to the second acquisition modules;
and S08, the second acquisition module starts real-time sampling after receiving the synchronous acquisition instruction until the second acquisition module receives the synchronous acquisition instruction again to finish the acquisition of information in a single sampling period.
In the present application, the first acquisition module 200 is configured to acquire vibration signals, and the second acquisition module 300 is configured to acquire various signals including vibration signals, for example, the sampling information includes one or more of speed information, acceleration information, and eddy current information. The information collected by the second collecting module 300 is not limited in the embodiment of the present application, and no matter what sampling information mode is, the mode provided by the present application can be adopted for synchronous collection.
Each acquisition module in this application includes acquisition unit 10 and sensor, acquisition unit 10 is used for carrying out the compiler according to control command in order to drive the sensor and to micro-control unit 20 transmission correspond the vibration data of measuring point, the sensor is used for gathering correspond the vibration data of measuring point.
After the machine control module 100 sends an instruction for starting data acquisition to the first acquisition module 200 through the CAN bus, the first vibration acquisition module starts to act, and the digital logic unit acquires vibration signals through the conditioning circuit and the a/D conversion circuit.
In a specific setting, for example, since the physical quantity is a small voltage, current or resistance change amount, the physical quantity is processed first, otherwise, the measured result cannot be directly converted into digital data. The method comprises the steps of conditioning an analog signal in a mode of amplifying, buffering or calibrating the analog signal, sending the conditioned analog signal to an A/D converter, converting the analog signal into a digital signal, and carrying out digital filtering on acquired vibration signal data, wherein the digital filtering does not depend on equipment, the proportion of interference in a useful signal is reduced through a certain calculation or judgment program, and different filtering methods or filtering parameters can be adopted according to different signals. And after the filtering is finished, calculating and correcting the signals, and counting the number of the synchronous points.
The acquisition mode and the signal processing mode of the acquisition module can be realized in various modes in the prior art, and the details are not repeated herein.
In this embodiment of the application, the first acquisition module 200 is used as a module for generating a synchronization signal, and when the first acquisition module 200 is used specifically, one or more modules for sending the synchronization signal may be used to prevent the synchronization signal from being generated or sent out when the first acquisition module 200 fails. The synchronization signal may be generated in different ways in the embodiments of the present application for different numbers of first acquisition modules 200, but of course, in a particular application, the features described in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise specified in the other embodiment.
Referring to fig. 2 in detail, in an embodiment of the present application, when the number of the first collecting modules 200 is one, the preset reference vibration signal and the number of the fixed-point points include:
s11, collecting vibration information in a single sampling period as a reference vibration signal through the first collection module 200, and setting the number of fixed point points based on the reference vibration signal.
With continuing reference to fig. 2, the counting the number of synchronization points synchronized with the reference vibration signal based on the vibration information includes:
s12, acquiring a sampling serial number of the first acquisition module 200 at the current sampling moment and sampling data corresponding to the sampling serial number;
s13, judging whether the sampling data are the same as the vibration values corresponding to the same sampling serial numbers in the reference vibration signal;
and S14, if the sampling numbers are the same, counting the sampling numbers as the number of synchronization points.
It should be noted that, when the number of the first collection module 200 is one, the vibration signal collected by the first collection module itself in a single period is used as a reference, as shown in fig. 3, the machine control module 100 sends a fixed point count as a generated synchronization signal to the first collection module 200, and when the number of the synchronization count reaches a preset fixed point count, the machine control module generates a synchronization signal and sends the synchronization signal to the second collection module 300. In the embodiment of the application, the problem of synchronous signal errors caused by system time errors does not need to be considered by taking the system time errors as a reference.
Referring to fig. 4, in an embodiment of the present application, when the number of the first collecting modules 200 is multiple, the preset reference vibration signal and the number of the fixed-point points include:
s21, selecting one of the first acquisition modules 200 as a reference acquisition module, presetting vibration information acquired in real time in a single sampling period on the reference acquisition module as a reference vibration signal, and presetting the number of points based on the reference acquisition module.
Referring to fig. 4, the counting the number of synchronization points synchronized with the reference vibration signal based on the vibration information includes:
s22, acquiring sampling serial numbers and reference sampling data corresponding to the sampling serial numbers based on the vibration information acquired in real time on the reference acquisition module;
s23, acquiring real-time vibration values with the same sampling serial number based on vibration information acquired in real time on the other first acquisition modules except the reference acquisition module; judging whether the reference sampling data is the same as the real-time vibration value;
and S24, if the sampling numbers are the same, counting the sampling numbers as the number of synchronization points.
It should be noted that, when the number of the first acquisition modules 200 is multiple, in order to enable the synchronization process, the sampling frequency of all the first acquisition modules 200 should be the same. Through mutual authentication among the plurality of first collection modules 200, the fixed point number serving as a generated synchronization signal is transmitted to the first collection module 200 through the machine control module 100, the synchronization signal is generated when the number of the synchronization points reaches a preset fixed point number, and the synchronization signal is transmitted to the second collection module 300. In the embodiment of the present application, a plurality of first acquisition modules 200 are arranged to generate a synchronization signal, so that it is prevented that the second acquisition module 300 cannot receive the synchronization signal when the first acquisition modules 200 are abnormal.
The problem of synchronization of sampling points caused by channel time difference and sampling time difference is not needed to be considered, the method does not depend on an additional time synchronization system, does not need synchronous waiting time delay, and has good synchronous sampling precision.
In this embodiment, the first acquisition module 200 sends the synchronous acquisition instruction to each of the second acquisition modules 300 in the form of a broadcast frame, where the broadcast frame includes a timestamp and a data length.
The micro control unit 20 in the acquisition module processes the intercepted data and calculates the characteristic values of various signals, wherein the characteristic values include: effective value, mean value, peak-to-peak value, and peak value to achieve data synchronization. Meanwhile, the calculated characteristic value is compared with a set alarm threshold value, and if the characteristic value is within the alarm threshold value range, the system is indicated to normally operate without starting vibration protection; if the characteristic value exceeds the alarm threshold value, the system is abnormal in operation, and vibration protection needs to be started to ensure the safety of system equipment. Alarm information is transmitted to the console module 100 through the micro control unit 20.
Referring to fig. 5, in an embodiment of the present application, the method further includes a first protection mechanism, which specifically includes:
s301, presetting the number of protection points of the first acquisition module 200;
s302, sending the protection points serving as data lengths to the second acquisition modules 300 through synchronous acquisition instructions;
s303, acquiring preset length vibration information acquired by the first acquisition module 200 and preset length sampling information acquired by the second acquisition module 300 based on the number of the protection points;
s304, judging whether the preset length vibration information and the preset length sampling information reach a preset alarm threshold value or not based on the preset length vibration information and the preset length sampling information;
s305, if so, starting a vibration protection mechanism.
In this embodiment, the machine control module 100 configures the first collection module 200, and the first collection module 200 simultaneously sends the number of protection points to the second collection module 300 when transmitting the synchronization signal, and analyzes the collected information on the basis, and determines whether the sampled information reaches a preset alarm threshold. It should be noted that, for different sampling signals, different preset alarm thresholds may be set.
Referring to FIG. 6, in another embodiment of the present application, the method further comprises a second protection mechanism implemented; the method specifically comprises the following steps:
s311, presetting the maximum protection point number of the second acquisition module 300;
s312, if the synchronous acquisition instruction is received, acquiring maximum length sampling information acquired by the second acquisition module 300 by using the maximum protection point number as a data length;
s313, judging whether the sampling information reaches a preset alarm threshold value or not based on the maximum length sampling information;
s314, if so, starting a vibration protection mechanism.
In this embodiment, the second acquisition module 300 is configured through the machine control module 100, when the second acquisition module 300 cannot receive a synchronization signal, a protection mechanism is started, a maximum protection point number is set as maximum length sampling information for the second acquisition module 300, and on this basis, the information acquired by the second acquisition module is analyzed to determine whether the sampling information reaches a preset alarm threshold value. It should be noted that, for different sampling signals, different preset alarm threshold settings may be performed. The abnormality described in the embodiment of the present application is not limited to the failure of the first collection module 200, the failure of the second collection module 300, the failure of the communication bus, and the like.
The embodiment of the application also provides a protection mechanism for the occurrence of the sampling information reaching the preset alarm threshold value. The protection module 400 in the embodiment of the present application includes a monitoring unit 401, a voting unit 402, and an execution unit.
The core of the system of the robot control module 100 issues commands to control the operation of the system according to certain logic operation requirements. After receiving the alarm information of the micro control unit 20, the machine control module 100 sends a control instruction to the protection module 400 to enable the protection module 400 to operate the protection mechanism. In order to prevent the occurrence of a failure or the like of the ecm 100, the embodiment of the present application proposes a double protection control.
The machine control module 100 is connected to a monitoring unit 401, and sends a periodic pulse signal to the monitoring unit 401 in the case that no abnormality occurs, the periodic pulse signal does not have a specific command, and in some embodiments, the pulse signal may be a fixed value such as 0,1, -1, and the like, and the application is not limited herein. Whether an abnormality occurs is indicated by a periodic pulse signal, and it should be noted that the abnormality in the implementation of the present application includes an abnormality of vibration information or other abnormality of itself.
When an abnormality occurs, the machine control module 100 stops the transmission of the periodic pulse signal to the monitoring unit 401. When the monitoring unit 401 receives the periodic pulse signal, it is determined that an abnormal condition occurs, and at this time, the monitoring unit 401 generates an interlock signal and sends the interlock signal to the voting unit 402.
Specifically, when the system works normally, the machine control module 100 periodically sends a pulse signal to the monitoring unit 401 and sends a control signal to the voting unit 402, and drives the equipment receiving the signal to act according to a control command of the machine control unit; when an abnormality occurs in the system, for example, communication abnormality occurs in the process of transmitting information data to the machine control module 100 by the machine control module 100 through the communication unit, or it is monitored that the working voltage of the module is not within a normal range, that is, when the module has a fault, the machine control module 100 stops sending a periodic pulse signal to the monitoring unit 401, so that the controlled device is guided to a safe state.
It should be noted that in the implementation of the present application, the execution mode of the interlock signal includes, but is not limited to, cross-connecting multiple sets of locking device control circuits one for another locking, or locking at the same time. In any case, the protection module 400 can be implemented in a set range and a set operation sequence.
It should be noted that, in this embodiment of the present application, the execution modes of the control signal sent by the machine control module 100 to the voting unit 402 and the interlock signal sent by the monitoring unit 401 may be the same or different, and this embodiment of the present application is not limited to this, and different settings may be performed on different operating conditions and different application devices.
The voting unit 402 receives the control signal and the interlock signal, processes the received control signal and the interlock signal in a voting manner of one out of two, generates a voting control signal, and sends the voting control signal to the protection execution unit 403, so that the protection execution unit 403 executes a protection mechanism. The voting control signal can be one of the control signal and the interlocking signal, and the application can adaptively adjust which signal is selected to be executed according to different working condition environments and different devices. The protection execution unit 403 receives the voting control signal and protects the system based on the corresponding control mode. In the implementation of the present application, the relay, which is used as an actuator of the protection execution unit 403, will execute the command issued by the voting control signal, and finally turn the controlled device to the safe state.
Referring to fig. 7, in an implementation, when the protection mechanism is executed, the method includes:
step S401, the micro control unit 20 determines whether to take a protective measure for the protected device based on the vibration information, and transmits alarm information to the machine control unit.
The micro-control unit 20 monitors whether the vibration of the equipment exceeds a threshold value, takes protective measures for the equipment when the vibration exceeds the threshold value, and transmits alarm information to the machine control unit.
Step S402, the machine control unit transmits a control signal to the voting unit 402 based on the alarm information.
The machine control unit receives the alarm information of the micro control unit 20, and sends a control signal to the voting unit 402 according to the alarm information; and whether to send a pulse signal to the monitoring unit is selected according to the alarm information.
In step S403, the machine control unit determines whether to send a periodic pulse signal to the monitoring unit 401 based on the alarm information.
And based on the alarm information, the machine control unit stops sending out the pulse signal when the module has abnormal conditions such as failure and the like.
In step S404, the monitoring unit 401 determines whether to send an interlock signal to the voting unit 402 based on the periodic pulse signal.
The monitoring unit 401 determines whether to send an interlock signal to the voting unit 402 according to the periodic pulse signal. When the monitoring unit 401 cannot receive the signal of the machine control unit, an interlocking signal is sent out to stop the 2 micro control units 20, and the controlled equipment enters a safe state through the interlocking signal, so that the safety of the system is ensured.
In step S405, the voting unit 402 generates a voting control signal by a two-to-one voting method based on the received control signal and the interlock signal, and sends the voting control signal to the protection execution unit 403.
The voting unit 402 receives the control signal and the interlock signal, and processes the received control signal and the interlock signal in a one-out-of-two voting manner to generate a voting control signal. And sends the voting control signal to the protection execution unit 403.
Step S406, the protection module 400 performs real-time online protection on the protected device based on the voting control signal.
As shown in fig. 8, the present application also provides a data synchronization system for vibration protection, including:
a robot control module 100 configured to preset a reference vibration signal and a fixed point number;
a first collecting module 200 configured to collect vibration information in real time, and count the number of synchronization points synchronized with the reference vibration signal based on the vibration information; and configured to send a synchronous acquisition instruction to each second acquisition module 300 by the first acquisition module 200 when the number of the synchronous points is the same as the number of the fixed point points;
the second acquisition module 300 is configured to start real-time sampling after receiving the synchronous acquisition instruction until the second acquisition module 300 receives the synchronous acquisition instruction again to finish the acquisition of information in a single sampling period;
a protection module 400 configured to perform a protection mechanism on a protected device based on the vibration information collected by the first collection module 200 and the sampling information collected by the second collection module 300.
In the embodiment of the present application, the processor is a processing device having a function of performing a logic operation, for example, a Central Processing Unit (CPU), a field programmable logic array (FPGA), a Digital Signal Processor (DSP), a single chip Microcomputer (MCU), an application specific logic circuit (ASIC), an image processor (GPU), and the like having a data processing capability and/or a program execution capability. It will be readily appreciated that the processor is typically communicatively coupled to the memory, on which any combination of one or more computer program products is stored, and that the memory may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. Volatile memory can include, for example, Random Access Memory (RAM), cache memory (or the like). The non-volatile memory may include, for example, Read Only Memory (ROM), a hard disk, an Erasable Programmable Read Only Memory (EPROM), USB memory, flash memory, and the like. One or more computer instructions may be stored on the memory and executed by the processor to implement the associated analysis functions. Various applications and various data, such as various data used and/or generated by the applications, may also be stored in the computer-readable storage medium.
In the embodiment of the present application, each module and unit may be implemented by a processor executing related computer instructions, for example, the acquisition unit is implemented by the processor executing instructions for acquiring vibration information. In the embodiment of the present application, each unit may run on the same processor, or may run on multiple processors; the units may run on processors of the same architecture, such as processors of the X86 architecture, or may run on processors of different architectures.
Each module can be packaged in one computer product, for example, each module is packaged in one computer software and runs on one computer (server), or can be packaged in different computer products respectively or partially, for example, the image processing module is packaged in one computer software and runs on one computer (server), and the machine learning modules are packaged in separate computer software and runs on another computer (server); the computing platform for executing each module can be local computing, cloud computing, or hybrid computing formed by local computing and cloud computing.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operational instructions of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed.
It will be appreciated by those skilled in the art that the scope of the disclosure herein is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the spirit of the disclosure. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "disposed" and the like, as used herein, may refer to one element being directly attached to another element or one element being attached to another element through intervening elements. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.
The present invention has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the scope of the described embodiments. It will be appreciated by those skilled in the art that many variations and modifications may be made to the teachings of the invention, which fall within the scope of the invention as claimed.
Claims (10)
1. A data synchronization method for vibration protection, comprising:
presetting a reference vibration signal and a fixed point number;
collecting vibration information in real time through a first collecting module, and counting the number of synchronous points synchronous with the reference vibration signal based on the vibration information;
when the number of the synchronous points is the same as the number of the fixed points, the first acquisition module sends a synchronous acquisition instruction to each second acquisition module;
and the second acquisition module starts real-time sampling after receiving the synchronous acquisition instruction until the second acquisition module receives the synchronous acquisition instruction again to finish the acquisition of information in a single sampling period.
2. The method according to claim 1, wherein the number of the first acquisition modules is one, and the preset reference vibration signal and the number of the fixed point points include:
through vibration information in single sampling period is gathered as reference vibration signal to first collection module, is based on reference vibration signal sets up the fixed point number.
3. The method of claim 2, wherein counting a number of synchronization points synchronized with the reference vibration signal based on the vibration information comprises:
acquiring a sampling serial number of a first acquisition module at the current sampling moment and sampling data corresponding to the sampling serial number;
judging whether the sampling data is the same as the vibration value corresponding to the same sampling sequence number in the reference vibration signal;
if the sampling numbers are the same, counting the sampling numbers as the number of the synchronous points.
4. The method according to claim 1, wherein the number of the first acquisition modules is plural, and the presetting of the reference vibration signal and the number of the fixed-point points comprises:
one of the first acquisition modules is selected as a reference acquisition module, vibration information in a single sampling period acquired in real time on the reference acquisition module is preset as a reference vibration signal, and the number of points is preset based on the reference acquisition module.
5. The method of claim 4, wherein counting a number of synchronization points synchronized with the reference vibration signal based on the vibration information comprises:
acquiring a sampling serial number and reference sampling data corresponding to the sampling serial number based on vibration information acquired in real time on the reference acquisition module;
acquiring real-time vibration values with the same sampling sequence number based on vibration information acquired in real time on other first acquisition modules except the reference acquisition module;
judging whether the reference sampling data is the same as the real-time vibration value;
if the sampling numbers are the same, counting the sampling numbers as the number of the synchronous points.
6. The method of claim 1, wherein the first acquisition module sends the synchronous acquisition instruction to each of the second acquisition modules in a broadcast frame, wherein the broadcast frame comprises a timestamp and a data length.
7. The method of claim 1, further comprising:
presetting the number of protection points of the first acquisition module;
sending the protection point number serving as a data length to each second acquisition module through a synchronous acquisition instruction;
acquiring preset length vibration information acquired by a first acquisition module and preset length sampling information acquired by a second acquisition module based on the number of protection points;
judging whether the preset length vibration information and the preset length sampling information reach a preset alarm threshold value or not based on the preset length vibration information and the preset length sampling information;
if so, starting a vibration protection mechanism.
8. The method of claim 1, further comprising:
presetting the maximum protection point number of the second acquisition module;
if the synchronous acquisition instruction is received, acquiring maximum length sampling information acquired by the second acquisition module by taking the maximum protection point number as a data length;
judging whether the maximum length sampling information reaches a preset alarm threshold value or not based on the maximum length sampling information;
if so, starting a vibration protection mechanism.
9. The method of claim 7, wherein the sampled information collected by the second collection module includes one or more of velocity information, acceleration information, and eddy current information.
10. A data synchronization system for vibration protection, comprising:
the machine control module is configured to preset a reference vibration signal and fixed point points;
the first acquisition module is configured to acquire vibration information in real time and count the number of synchronous points synchronous with the reference vibration signal based on the vibration information; the first acquisition module is configured to send a synchronous acquisition instruction to each second acquisition module when the number of the synchronous points is the same as the number of the fixed point points;
the second acquisition module is configured to start real-time sampling after receiving the synchronous acquisition instruction until the second acquisition module receives the synchronous acquisition instruction again and finishes the acquisition of information in a single sampling period;
the protection module is configured to execute a protection mechanism on the protected device based on the vibration information collected by the first collection module and the sampling information collected by the second collection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110905484.4A CN113701872B (en) | 2021-08-06 | 2021-08-06 | Data synchronization method and system for vibration protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110905484.4A CN113701872B (en) | 2021-08-06 | 2021-08-06 | Data synchronization method and system for vibration protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113701872A CN113701872A (en) | 2021-11-26 |
| CN113701872B true CN113701872B (en) | 2022-03-25 |
Family
ID=78651786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110905484.4A Active CN113701872B (en) | 2021-08-06 | 2021-08-06 | Data synchronization method and system for vibration protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113701872B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184624A (en) * | 2011-03-11 | 2011-09-14 | 湖南五舟检测科技有限公司 | Wireless synchronous sampling method and sampling system for vibrating data |
| CN102394742A (en) * | 2011-09-09 | 2012-03-28 | 航天科工深圳（集团）有限公司 | Method and device for synchronically acquiring terminal data of powder distribution network |
| CN103427977A (en) * | 2013-09-03 | 2013-12-04 | 上海聚星仪器有限公司 | Method for achieving synchronous collection of multiple devices through single-channel analogue signal |
| CN104136896A (en) * | 2012-01-24 | 2014-11-05 | 斯奈克玛 | System for acquiring a vibratory signal of a rotary motor |
| WO2016029629A1 (en) * | 2014-08-29 | 2016-03-03 | 国家电网公司 | System and method for judging interior looseness of power transformer |
| CN108168811A (en) * | 2017-12-12 | 2018-06-15 | 电子科技大学 | The Portable acquiring analytical equipment and method of a kind of vibration signal |
| WO2018113165A1 (en) * | 2016-12-21 | 2018-06-28 | 国网电力科学研究院 | Configurable device for monitoring vibration and swing states of hydraulic turbine set, and data acquisition method |
| CN109683137A (en) * | 2018-12-24 | 2019-04-26 | 中国电子科技集团公司第二十研究所 | A kind of multi-channel synchronization method applied to phased-array radar |
| CN111464255A (en) * | 2020-04-02 | 2020-07-28 | 西人马(西安)测控科技有限公司 | CP L D-based data synchronization method and data acquisition device |
-
2021
- 2021-08-06 CN CN202110905484.4A patent/CN113701872B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184624A (en) * | 2011-03-11 | 2011-09-14 | 湖南五舟检测科技有限公司 | Wireless synchronous sampling method and sampling system for vibrating data |
| CN102394742A (en) * | 2011-09-09 | 2012-03-28 | 航天科工深圳（集团）有限公司 | Method and device for synchronically acquiring terminal data of powder distribution network |
| CN104136896A (en) * | 2012-01-24 | 2014-11-05 | 斯奈克玛 | System for acquiring a vibratory signal of a rotary motor |
| CN103427977A (en) * | 2013-09-03 | 2013-12-04 | 上海聚星仪器有限公司 | Method for achieving synchronous collection of multiple devices through single-channel analogue signal |
| WO2016029629A1 (en) * | 2014-08-29 | 2016-03-03 | 国家电网公司 | System and method for judging interior looseness of power transformer |
| WO2018113165A1 (en) * | 2016-12-21 | 2018-06-28 | 国网电力科学研究院 | Configurable device for monitoring vibration and swing states of hydraulic turbine set, and data acquisition method |
| CN108168811A (en) * | 2017-12-12 | 2018-06-15 | 电子科技大学 | The Portable acquiring analytical equipment and method of a kind of vibration signal |
| CN109683137A (en) * | 2018-12-24 | 2019-04-26 | 中国电子科技集团公司第二十研究所 | A kind of multi-channel synchronization method applied to phased-array radar |
| CN111464255A (en) * | 2020-04-02 | 2020-07-28 | 西人马(西安)测控科技有限公司 | CP L D-based data synchronization method and data acquisition device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113701872A (en) | 2021-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109976209B (en) | Mechanical health monitoring module | |
| CN113390505B (en) | Vibration protection method and system for multi-channel synchronous acquisition | |
| EP2685334A2 (en) | Safety system and control device | |
| CN108226761B (en) | Method for real-time acquisition and alternate self-inspection of speed of rail transit vehicle | |
| EP3422189B1 (en) | Event-based data collection for smart sensors on a master/slave bus | |
| CN112798012B (en) | Speed and distance measuring device and method for train control vehicle-mounted equipment based on two-by-two architecture | |
| CN101393049A (en) | Vibration monitoring and failure diagnosis method for wind generating set | |
| CN104316729A (en) | Self-diagnosis method of acceleration sensors for locomotive bogie detection | |
| CN101425772B (en) | Dynamic data collection system and accurately positioning method for collection position | |
| US20100023791A1 (en) | Process for digital, bidirectional data transmission | |
| EP3447644B1 (en) | Event-based data collection for smart sensors on an arbitrating bus | |
| CN113701872B (en) | Data synchronization method and system for vibration protection | |
| KR102204120B1 (en) | Optical safety sensor | |
| CN113624321B (en) | Real-time online protection system and method based on vibration monitoring | |
| US6711513B2 (en) | Fault tolerant apparatus and method for determining a revolution rate of a gear | |
| EP3118749B1 (en) | System and method of monitoring a serial bus | |
| CN105702016B (en) | Device and method for checking an operating clock signal of a position measuring device | |
| CN110411730A (en) | A kind of rotating equipment failures judgment method, system and readable storage medium storing program for executing | |
| CN115265982A (en) | Sampling control method of multi-module data acquisition unit and multi-module data acquisition unit | |
| CN104236474A (en) | Bridge deformation monitoring method and system based on laser measurement and 485 bus | |
| CN110967182B (en) | Cone crusher vibration data acquisition and preprocessing method | |
| CN103511110A (en) | Method and system for detecting installation position of revolution speed transducer | |
| CN108731792B (en) | Method for judging train passing and vibration detection device | |
| CN218496365U (en) | Bridge monitoring system | |
| CN111177793B (en) | Digital quantity acquisition and communication transmission system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231213 Address after: 100029 3 / F, xinhuaxin building, 5 yinghuayuan East Street, Chaoyang District, Beijing Patentee after: BEIJING BOHUA XINZHI TECHNOLOGY CO.,LTD. Patentee after: BEIJING BOHUA ANCHUANG TECHNOLOGY Co.,Ltd. Address before: 100029 3 / F, xinhuaxin building, 5 yinghuayuan East Street, Chaoyang District, Beijing Patentee before: BEIJING BOHUA XINZHI TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right |