KR20180138367A - Method for providing operation data of machine collected from sensor assembly - Google Patents

Abstract

According to one embodiment of the present invention, a method for providing operation data collected from a sensor assembly comprises the following steps, which are performed by a server: (a) obtaining resampled second operation data for first operation data measured by a sensor assembly from a first user terminal; (b) determining whether the second operation data exceeds a threshold; and (c) providing an alarm to the second user terminal if the second operational data exceeds the threshold.

Description

TECHNICAL FIELD [0001] The present invention relates to a method of providing operation data of a machine collected from a sensor assembly,

The present invention relates to a method for providing operational data of a machine collected from a sensor assembly.

Conventionally, in-plant motors, fan equipment, and machine information recognition sensors installed for jet fans in tunnels have been supplied at very high cost. One way to check the motor or fan status is to check whether the RPM value of the motor is abnormal. You can check the RPM by checking the vibration value of the motor or fan.

Even if the vibration value is grasped through the sensor attached to the motor or the fan, it needs to be analyzed and informed to the user (for example, factory manager) conveniently in real time. In the conventional case, there is a problem that a server loads data from a large number of sensors in real time so that the load on the server is enormously increased, or wireless communication connection between the sensor and the AP module becomes insufficient in some cases.

Korean Patent No. 10-1120517 (entitled " Motor Vibration Detection System and Database Construction Method Using It "

Accordingly, the present invention provides an apparatus and method for efficiently providing operation data by extracting an average value from a square root mean square value of a value sensed on an AP module (or a relay module) and transmitting the purified value (average value) .

According to an aspect of the present invention, there is provided a method for providing operation data collected from a sensor assembly, the method comprising: (a) Obtaining second resampled operational data for operational data; (b) determining whether the second operation data exceeds a threshold value; And (c) providing an alarm to the second user terminal if the second operational data exceeds a threshold value.

According to another aspect of the present invention, there is provided a method for providing operation data collected from a sensor assembly, comprising the steps of: (a) obtaining, from a sensor assembly, performed by a user terminal connected to a sensor assembly, Obtaining measured first motion data; (b) for the first operating data, real-time resampling at a second sampling rate lower than the first sampling rate to obtain second operating data; And (c) providing second operating data to the server, wherein step (b) includes, for the first operating data, a second sampling rate for each of the time intervals corresponding to the second sampling rate, The second operation data can be obtained by calculating the square root value.

According to still another aspect of the present invention, there is provided a method for providing operation data collected from a sensor assembly, the method comprising: (a) performing, by a user terminal providing operation data to a user, Acquiring first interval operation data corresponding to an event occurrence interval; (b) obtaining second section operation data resampled at a sampling rate lower than the sampling rate of the first section operation data, for data corresponding to the remaining section of the event occurrence interval in the operation data from the server; And (c) sequentially reproducing the first section operation data and the second section operation data at a preset reference speed in the order of measurement time, wherein the event occurrence interval is determined by the server that the operation data exceeds a threshold value If so, it may be a section determined to include a time point exceeding the threshold value.

According to the method for providing operation data according to an embodiment of the present invention, each of the user terminals collecting operation data from a plurality of machines resamples the data to an average value and transmits them to the server, And the amount of data communication required between the server and the server can be reduced.

According to the method for providing operation data according to an embodiment of the present invention, a time-lapse effect is applied to data in a time zone in which no events are generated for the machines, The discrimination power can be increased.

In addition, according to the method of providing operation data according to an embodiment of the present invention, when an event occurs in any one of the machines while giving a time-lapse effect to data of a plurality of machines, By making the entire data displayed on the same time axis, comparison between the machine where the event occurred and the remaining machines can be facilitated.

1 is a block diagram illustrating a configuration of an operation data providing system according to an embodiment of the present invention.
2 is a diagram illustrating a configuration of a server according to an embodiment of the present invention.
3 is a flowchart illustrating an operation data providing method performed by a server according to an exemplary embodiment of the present invention.
4 is a flowchart illustrating an operation data providing method performed by a server according to another embodiment of the present invention.
5 is a view for explaining an example of providing operation data according to the present invention.
6 is a view for explaining an example of providing a plurality of operation data according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between . Also, when an element is referred to as "including" an element, it is to be understood that the element may include other elements as well as other elements, And does not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

The first user terminal 210 means a user terminal connected to the sensor assembly 220 and the second user terminal 240 indicates to the user that the operation data To the user terminal.

The following examples are intended to further illustrate the present invention and are not intended to limit the scope of the present invention. Accordingly, the same scope of the invention performing the same function as the present invention will also fall within the scope of the present invention.

1 is a diagram showing a configuration of an operation data providing system 1 according to an embodiment of the present invention.

Referring to FIG. 1, an operation data providing system 1 according to an embodiment of the present invention includes a server 100, user terminals 210 and 240, a sensor assembly 220, and a machine 230. And a communication network 300 interconnecting the server 100 and the user terminals 210 and 240.

The server 100 according to an embodiment of the present invention receives and processes operation data of the machine 230 acquired by the sensor assembly 220 from the first user terminal 210 and transmits the operation data to the second user terminal 240 And the second user terminal 240 displays the operation data provided from the server 100 to the user.

Wherein the motion data may be data comprising at least one of vibration, temperature and slope of the machine.

The first user terminal 210 may perform resampling on the operation data acquired from the sensor assembly 220 and then transmit the resampled operation data to the server 100. [

Here, the first user terminal 210 may resample the operation data sensed at the first sampling rate in the sensor assembly 220 to a second sampling rate different from the first sampling rate.

At this time, the second sampling rate may be a sampling rate lower than the first sampling rate.

For example, the first sampling rate may be 2 kHz and the second sampling rate may be 20 Hz, but the present invention is not limited thereto.

Here, the first user terminal 210 may calculate a root mean square (RMS) value based on the time interval for the operation data or a root mean square (RMS) value based on the FFT analysis for each of the time intervals corresponding to the second sampling rate And a frequency value of the received signal is sampled to obtain the resampled operation data.

For example, if the second sampling rate is 20 Hz, the first user terminal 210 samples the value of the root-mean-square value calculated for the interval of 1/20 seconds every 1/20 seconds corresponding thereto, The operation data can be obtained.

As described above, according to the embodiment of the present invention, in each of the user terminals collecting operation data from a plurality of machines, data is resampled to an average value and transmitted to the server, The amount of data communication required can be reduced.

The server 100 performs a determination as to whether the specific data sample has exceeded the threshold value with respect to the resampled operation data received from the first user terminal 210 and then transmits an alarm to the second user terminal 240 according to the determination result .

The server 100 may also provide the resampled operating data received from the first user terminal 210 to the second user terminal 240 or may perform one more resampling operation on the resampled (e.g., first resampled) (For example, secondary resampled) operation data to the second user terminal 240. [

Here, the server 100 divides the section for the resampled operation data according to the determination as to whether the specific data sample exceeds the threshold value, and outputs the first-time resampled operation data for the specific section and the second-time resampled operation data for the remaining section And may provide operation data to the second user terminal 240. [

For example, when the specific data sample exceeds the threshold, the server 100 provides the first resampled operation data to the second user terminal 240 for the section including the corresponding data sample, And provides the second resampled operation data to the second user terminal 240 for the section not including the second resampled operation data.

At this time, the secondary resampling may be to resample to a third sampling rate lower than the second sampling rate.

For example, the second sampling rate may be 20 Hz and the third sampling rate may be 4 Hz, but the present invention is not limited thereto.

The second user terminal 240 can receive an alarm from the server 100 and display the alarm to the user.

In addition, the second user terminal 240 may receive the resampled operation data from the server 100 and display the corresponding data to the user.

Here, the second user terminal 240 may display the resampled operation data received from the server 100 to the user in a real time graph format upon receiving the resampled operation data.

Meanwhile, as described above, when receiving the operation data resampled at different sampling rates from the server 100, the second user terminal 240 determines that the data samples included in the corresponding data have the same time- The graph can be adjusted and displayed to the user.

A more detailed description related to the secondary resampling of the server 100 and the result graph reconciliation of the second user terminal 240 will be described later with reference to FIG.

The sensor assembly 220 can sense operation data of the machine 230 in real time.

The sensor assembly 220 senses operation data at a first sampling rate, where the first sampling rate may be a predetermined value for each sensing module.

Here, the sensing module may include a vibration sensing module for measuring the vibration of the machine, a temperature sensing module for measuring the temperature of the machine, and a gyroscope module for measuring the tilt of the machine.

The machine 230 may be a conventional in-plant motor, fan equipment, or a jet fan in a tunnel.

On the other hand, the operation data providing system according to one embodiment of the present invention may be a system for providing operation data of the plurality of machines 231 and 232.

In this case, each of the sensors 231 and 232 is provided with sensor assemblies 221 and 222, respectively, to sense the operation data, and the first user terminals 211 and 212 to the sensor assemblies 221 and 222, Each can be connected to obtain operation data.

1, the sensor assembly 221 and the first user terminal 211 are shown as having a one-to-one connection, but a single first user terminal 211 is connected to the plurality of sensor assemblies 221 and 222, To-many connections to obtain operational data.

The user terminals 210 and 240 are communication terminals capable of transmitting and receiving data in a wired / wireless communication environment. Here, the first user terminal 210 may be a microcomputer device equipped with a microcontroller unit (MCU) for resampling data. Also, the second user terminal 240 may be a portable terminal of the user.

In FIG. 1, the first user terminal 210 is a single board computer, which is a kind of microcomputer, and the second user terminal 240 is a smart phone, which is a kind of portable terminal. However, The idea of the present invention is not limited to this, and can be borrowed without limitation to terminals capable of transmitting and receiving data as described above.

In particular, the second user terminal 240 may comprise any form of handheld computing device (e.g., PDA, email client, etc.), any form of mobile phone, or any other type of computing or communication platform, The present invention is not limited thereto.

Meanwhile, the communication network 300 connects the server 100 and the user terminals 210 and 240. That is, the communication network 300 refers to a communication network that provides a connection path so that the user terminals 210 and 240 can transmit and receive data after connecting to the server 100. The communication network 300 may be a wired network such as LANs (Local Area Networks), WANs (Wide Area Networks), MANs (Metropolitan Area Networks), ISDNs (Integrated Service Digital Networks), wireless LANs, CDMA, Bluetooth, But the scope of the present invention is not limited thereto.

2 is a diagram illustrating a configuration of a server 100 according to an embodiment of the present invention.

Referring to FIG. 2, a server 100 according to an exemplary embodiment of the present invention includes a communication module 110, a memory 120, a processor 130, and a database 140.

In detail, the communication module 110 provides a communication interface required to provide transmission / reception signals between the server 100 and the user terminals 210 and 240 in the form of packet data in cooperation with the communication network 300.

Here, the communication module 110 may be a device including hardware and software necessary to transmit / receive a signal such as a control signal or a data signal through a wired / wireless connection with another network device.

The memory 120 stores a program for performing the method for providing the real estate enhancement service. In addition, the processor 130 performs a function of temporarily or permanently storing data to be processed. Here, the memory 120 may include magnetic storage media or flash storage media, but the scope of the present invention is not limited thereto.

The processor 130 controls the entire process of providing operation data as a kind of central processing unit. Each step performed by the processor 130 will be described later with reference to FIG.

Here, the processor 130 may include any kind of device capable of processing data, such as a processor. Herein, the term " processor " may refer to a data processing apparatus embedded in hardware, for example, having a circuit physically structured to perform a function represented by a code or an instruction contained in the program. As an example of the data processing apparatus built in hardware, a microprocessor, a central processing unit (CPU), a processor core, a multiprocessor, an application-specific integrated circuit (ASIC) circuit, and a field programmable gate array (FPGA), but the scope of the present invention is not limited thereto.

The database 140 includes operation data obtained from the first user terminal 210 and operation data subjected to resampling on the operation data.

The database 140 may further include information on an event occurrence time and an event occurrence interval of the operation data obtained from the first user terminal 210. [

Here, the event refers to factors that may affect the operation of the machine, such as a sudden change in sensing value such as vibration, temperature, and slope value, or a predetermined threshold range.

Although not shown in FIG. 2, some of the operation data, resampled operation data, event occurrence time, and event occurrence interval may be stored in a database (not shown) physically or conceptually separated from the database 140 .

3 is a flowchart illustrating an operation data providing method performed by the server 100 according to an embodiment of the present invention.

3 is an operation flowchart showing a method of providing operation data performed by the server 100. As shown in FIG. Here, a program for performing each step of FIG. 3 is recorded in the memory 120, and the program is executed by the processor 130, whereby a method of providing operation data can be performed.

Referring to FIG. 3, first, the server 100 acquires operation data resampled from a first user terminal (S310).

At this time, the resampled operation data may be data that the first user terminal has resampled to the second sampling rate and transmitted to the operation data acquired at the first sampling rate in the sensor assembly.

Next, the server 100 determines whether the resampled operation data exceeds a threshold (S320).

If it is determined in step S320 that any data sample among the resampled operation data exceeds the threshold, the server 100 provides an alarm to the second user terminal (S330).

Although not shown in FIG. 3, the method of providing operation data performed by the server 100 according to an embodiment of the present invention is such that the server 100, after step S220, transmits the resampled operation data to the second user (Not shown). A more detailed description related to the step of transmitting the resampled operation data to the second user terminal (not shown) will be described later with reference to FIG.

Hereinafter, further embodiments of the present invention will be described.

4 is a flowchart illustrating an operation data providing method performed by the server 100 according to an embodiment of the present invention.

Particularly, FIG. 4 is a flowchart illustrating an operation of determining an event occurrence interval according to whether operation data that has been resampled (e.g., first-resampled) in step S320 of FIG. 3 exceeds a threshold value, Data or second-resampled operation data to the second user terminal.

Referring to FIG. 4, first, the server 100 determines whether the primary resampled operation data exceeds a threshold (S410).

As a result of the determination in step S410, if any of the data samples of the primary resampled operation data exceeds the threshold, the server 100 determines an event generation period based on the measurement time of the data sample exceeding the threshold (S420 ).

In step S420, the server 100 determines that the time interval between the start time, which is subtracted from the measurement time of the data sample exceeding the threshold by the predetermined time, and the end time added by the predetermined time is the event occurrence period .

In an alternative embodiment, in step S420, the server 100 may determine an event occurrence period based on the median value of the measurement time of the consecutive data samples, if any consecutive data samples exceed the threshold.

Next, the server 100 determines whether the primary resampled operation data to be transmitted to the second user terminal 210 is operation data of the event occurrence period (S430).

As a result of the determination in operation S430, if the operation data is the operation data of the event occurrence period, the operation data provided to the second user terminal 210 is resampled (for example, first resampled) to the second user terminal 210 at operation S440.

If it is determined in operation S430 that the operation data is not the operation data of the event occurrence period, the primary resampled operation data is resampled (e.g., second resampled) to a third sampling rate lower than the second sampling rate (S460) And provides the second resampled operation data to the second user terminal 240 (S460).

5 is a view for explaining an example of providing operation data 500 according to the present invention.

In particular, FIG. 5 is a diagram for explaining the second-order resampling of the server and the process of adjusting the result graph in the second user terminal.

Referring to FIG. 5, operation data 500 represents operation data that has been subjected to second-order resampling by the server for operation data measured for one machine.

Here, the x-axis of the graph represents the time at which the server transmits data to the second user terminal, and the y-axis represents the size of the data value included in the data.

Here, the data value is a square root mean square (rms) value or a frequency value as described above, which is a value calculated (first resampled) by the first user terminal with respect to the operation data measured with respect to the machine.

The dots located on the operation data 500 represent data samples transmitted by the server to the second user terminal, and the closer the interval between the points, the higher the sampling rate.

The server can perform the second-order resampling by the following process.

First, the server receives the first-resampled operation data from the first user terminal and may determine an event occurrence period (t1-t2) including the interval 510 exceeding the threshold value when the corresponding data exceeds the threshold value .

The server can determine the time period t1-t2 corresponding to the time interval between the start time obtained by subtracting a predetermined time from the intermediate time of the interval 510 exceeding the threshold value and the end time added by a preset time.

Next, the server transmits to the second user terminal the first-order resampled operation data corresponding to the event occurrence period t1-t2, and transmits the operation data corresponding to the remaining periods (0-t1 and t2-t3) The first-order resampled operation data may be subjected to second-order resampling and transmitted to the second user terminal.

5, it can be seen that the sampling rate of the second-resampled operation data of the remaining sections (0-t1 and t2-t3) is lower than the first-order resampled operation data of the event occurrence section (t1-t2) .

On the other hand, the second user terminal may adjust the result graph to display to the user such that the time axis spacing between the data samples is the same for the received operation data 500.

In this case, the remaining time intervals (0-t1 and t2-t3) are narrower than the event occurrence period (t1-t2) by the smaller number of data samples.

For example, when the sampling rates of the remaining intervals 0-t1 and t2-t3 are 4 Hz and the sampling rate of the event occurrence period t1-t2 is 20 Hz, the time interval of the remaining intervals 0-t1 and t2- (20 Hz / 4 Hz) as compared with the time axis interval of the event occurrence period (t1-t2).

Accordingly, the user can feel as if the time for the data of the section in which the event does not occur is rapidly proceeding.

As described above, according to the embodiment of the present invention, the data of the time zone in which the event is not generated for the machines has the same effect as that of the time lapse, thereby increasing the discrimination power of the data at the time of the event occurrence have.

6 is a diagram for explaining an example of providing a plurality of operation data 610 and 620 according to the present invention

Referring to FIG. 6, the first operation data 610 and the second operation data 620 represent operation data subjected to second-order resampling by the server for each of the operation data measured for different machines.

Here, the server determines an event occurrence period for all of the operation data, and can perform the second-order resampling.

For example, with respect to the first operation data 610, the server determines the event occurrence period t1-t2 to include the interval 611 exceeding the threshold value, and in relation to the second operation data 620, (T2-t3) so as to include the interval 621 exceeding the predetermined threshold value.

In this case, the server may determine an event occurrence period for each of the operation data, and then determine that the event occurrence periods are the event occurrence periods t1-t2 and t2-t3 for the entire operation data.

That is, the server transmits the entire first-order resampled operation data corresponding to the event occurrence periods t1-t2 and t2-t3 to the second user terminal as it is, And perform second-degree resampling on the entire resampled operation data to transmit to the second user terminal.

As shown in FIG. 6, it can be seen that only the remaining interval (0-t1) in which no event has occurred in the two operation data is subjected to second-order resampling.

The second user terminal can display to the user a graph along the same time axis for all of the operational data 610 and 620. [

That is, the second user terminal may adjust the result graph to display to the user such that the time base intervals between the data samples are the same for all of the operation data 610 and 620, and the operation data 610 and 620 Since they have the same sampling rate in a certain interval, they can have the same time axis in the adjusted graph.

As described above, according to an embodiment of the present invention, when an event occurs in any one of the machines while giving a time-lapse effect to data of a plurality of machines, So that comparison between the machine where the event occurred and the remaining machines can be facilitated.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

1: operation data providing system 100: server
110: communication module 120: memory
130: Processor 140: Database
210: first user terminal 220: sensor assembly
230: machine 240: second user terminal
250: Network

Claims (10)

A method for providing operation data, which is performed by a server,
(a) obtaining, from a first user terminal, resampled second operation data for first operation data measured by a sensor assembly;
(b) determining whether the second operation data exceeds a threshold value; And
(c) providing an alarm to the second user terminal if the second operational data exceeds a threshold. The method according to claim 1,
The second operation data
Sampled at a sampling rate lower than the sampling rate of the first operating data for the first operating data. The method according to claim 1,
The second operation data
Wherein the second operation data is a square root mean square value or a frequency value calculated based on the time interval for each time interval corresponding to the sampling rate of the second operation data. The method according to claim 1,
(d) if the second operation data exceeds a threshold value, determining an event occurrence interval including a time point exceeding a threshold value; And
(e) providing the second user terminal with first interval operation data corresponding to the event occurrence interval of the second operation data. 5. The method of claim 4,
(f) obtaining second interval operation data by resampling the data corresponding to the remaining interval of the event occurrence interval of the second operation data at a sampling rate lower than the sampling rate of the first interval operation data; And
(g) providing the second interval operation data to the second user terminal,
Wherein the first interval operation data and the second interval operation data are sequentially displayed in order of measurement time so that time intervals of data samples in the second user terminal have the same interval. 6. The method of claim 5,
The step (a)
Acquiring further resampled second additional operation data for the first additional operation data collected by the further sensor assembly,
The step (e)
Providing the second user operation terminal with first interval addition operation data corresponding to the event occurrence interval of the second additional operation data,
Wherein the first interval operation data and the first interval addition operation data are displayed on the same time axis in the second user terminal. A method of providing operational data, performed by a user terminal coupled to a sensor assembly,
(a) obtaining, from a sensor assembly, first operating data measured in real time at a first sampling rate for operation of the machine;
(b) for the first operating data, real-time resampling to obtain second operating data at a second sampling rate lower than the first sampling rate; And
(c) providing the second operating data to the server,
The step (b)
Wherein said second operation data is obtained by calculating a square root mean square value or a frequency value based on said time interval for each of said first operation data and said second operation data at intervals of time corresponding to said second sampling rate, Delivery method. A method for providing operation data, which is performed by a user terminal that provides operation data to a user,
(a) acquiring first interval operation data corresponding to an event occurrence interval of operation data measured by a sensor assembly from a server;
(b) obtaining second section operation data resampled at a sampling rate lower than a sampling rate of the first section operation data, for data corresponding to the remaining section of the event occurrence interval in the operation data from the server; And
(c) sequentially displaying the first section operation data and the second section operation data in order of measurement time so that the data samples have the same interval in time axis intervals,
The event occurrence period
And when the operation data is determined by the server as exceeding the threshold, it is determined that the time exceeds the threshold. 9. The method of claim 8,
The step (a)
Acquiring resampled first section addition operation data for some additional operation data corresponding to the event occurrence interval from the additional operation data measured by the additional sensor assembly from the server,
The step (c)
Wherein the first section operation data and the first section addition operation data are displayed on the same time axis. 10. A computer-readable recording medium on which a program for performing the method for providing operation data according to any one of claims 1 to 9 is recorded.

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