KR20210035680A - Industrial integrated measurement and monitoring system - Google Patents

Abstract

The present invention relates to an industrial integrated measurement and monitoring system and, more specifically, to an industrial integrated measurement and monitoring system, which is a real-time measurement system using a sensor for secondary utilization such as condition monitoring diagnosis, malfunction prediction and the like on automotive and industrial factory facilities and the like, comprising: diagnosing and predicting the occurrence of the (fatigue) malfunction, abnormal noise and vibration of a bearing or sensing damage to a structure such as a workbench for a special vehicle by sensing vibrations and the like of an axle, an engine, a motor and a transmission rotation shaft; confirming a position change of a vehicle through GPS; and directly informing a central control sensor or a customer of various vehicle condition changes besides a vehicle speed and a fuel consumption rate through the CAN signal confirmation of an ECU.

Description

Industrial integrated measurement and monitoring system {INDUSTRIAL INTEGRATED MEASUREMENT AND MONITORING SYSTEM}

The present invention relates to an integrated industrial measurement and monitoring system, and more particularly, as a real-time measurement system using a sensor for secondary use such as condition monitoring diagnosis and failure prediction in vehicles and industrial factory facilities, etc., axle , It is used for diagnosing and predicting the occurrence of (fatigue) failure, abnormal noise, vibration of bearings, or detecting damage to structures such as work tables for special vehicles by taking the vibrations of the rotating shaft of the engine, motor, and transmission. It relates to an integrated industrial measurement and monitoring system, characterized in that it checks the position change of the vehicle by using and directly informs the change of vehicle speed, fuel consumption, and other vehicle conditions to the customer or the central control sensor through the CAN signal of the ECU. .

Due to the 4th Industrial Revolution, various sensors are installed in plant facilities or vehicles to detect abnormalities or monitor operation status, and furthermore, through continuous data collection and analysis, the importance of sensor devices reaches the level of secondary and tertiary use such as failure prediction and diagnosis. Is increasing.

Conventionally, the communication between the control system and the measurement system mainly used a polling method. The polling method consists of a method in which the control system and the measurement system exchange responses at a certain period. This method has a disadvantage in that since the response is exchanged with a periodicity, data cannot be received as soon as an abnormal signal occurs, and data can be received when the set period is reached. If the period is set to be short in order to receive data close to real time, there is a problem that a burden is placed on the performance of the server. In addition, even data that is not an abnormal signal must be periodically received and checked every time, so efficiency decreases.

In the future, as the era of the 4th industrial revolution arrives, functions such as collection, processing, analysis, storage, and display of vast amounts of data will be required. In order to accurately grasp the state of complex machinery, analyze the condition, and efficiently apply the result to the field, it is necessary to improve the method to enable a wider range of data processing in addition to sensing and data storage, and development of an integrated system for analysis and application is required.

The present invention is to solve the above-described problems, and as a real-time measurement system using sensors for secondary use such as condition monitoring diagnosis and failure prediction in vehicles and industrial factory facilities, etc., an axle, an engine, a motor, It is used for diagnosing and predicting the occurrence of (fatigue) failure, abnormal noise, and vibration of the bearing by sensing the vibration of the rotation shaft of the transmission, or for detecting damage to structures such as work tables for special vehicles, and the location of the vehicle using GPS. The purpose of this is to check the change and to inform the user of the vehicle speed, fuel consumption rate, and other vehicle status changes efficiently through the CAN signal of the ECU.

In order to achieve the above object, the present invention provides an industrial integrated measurement and monitoring system, comprising: a measurement system (A) for obtaining raw data from a sensor and converting, processing, and additionally calculating; And a control system (B) for checking a state of the measurement system or controlling a function. Includes; The measurement system (A) includes a central processing unit that is in charge of processing and additional calculation of the converted data, and increases efficiency by selectively controlling data transmission by performing a function of transmitting/receiving or deleting data according to a user's command; Provides industrial integrated measurement and monitoring system. Here, communication from the measurement system (A) to an external local server or a central server is characterized by enhancing the usability and efficiency of users by transmitting only a minimum amount of data when an event occurs.

The present invention relates to an industrial integrated measurement and monitoring system using a measurement system, a control system, and a server, and more particularly, a system capable of efficiently diagnosing equipment abnormalities and conditions to users of industrial equipment such as plant equipment and vehicles. It provides a system and at the same time reduces the cost of data communication compared to the existing system, thereby facilitating the introduction and utilization of the system.

For example, a measurement system installed in a plant facility measures the rotational shaft speed, torque, and vibration of nearby structures, and transmits the results to a local server in charge of an area such as a line, and the local server organizes and analyzes the results. By sending it back to the central server that manages the entire plant, it establishes the system and facilitates follow-up management. In addition, when transmitting data from the measurement system to the outside, such as a local server, all measurement data was transmitted in real time, but this was difficult due to excessive data communication charges. In this patent, when a predetermined transmission period such as one operation of a facility arrives, only indicators that can represent the operation during that time are selectively transmitted, or data is transmitted only when specific events such as abnormal conditions occur, thereby minimizing the amount of data communication. To do it as an advantage.

1 is a diagram schematically showing an industrial integrated measurement and monitoring system according to an embodiment of the present invention.
2 is a diagram schematically showing the configuration of an electric circuit for performing strain gauge measurement and calibration calculation in firmware of a central processing unit of an industrial integrated measurement and monitoring system according to an embodiment of the present invention.
FIG. 3 is a diagram schematically illustrating a battery power supply device for independent operation of a sensor unit of an integrated industrial measurement and monitoring system according to an embodiment of the present invention.
4 is a diagram schematically illustrating a system operation procedure of an industrial integrated measurement and monitoring system according to an embodiment of the present invention.

In the present invention, various modifications may be made and various forms may be applied, and specific embodiments will be illustrated in the drawings and described in detail in the text.

An integrated industrial measurement and monitoring system, comprising: a measurement system (A) that acquires raw data from a sensor and converts, processes, and additionally calculates; And a control system (B) for checking a state of the measurement system or controlling a function. Includes; The measurement system (A) includes a central processing unit that is in charge of processing and additional calculation of the converted data, and increases efficiency by selectively controlling data transmission by performing a function of transmitting/receiving or deleting data according to a user's command; It is an industrial integrated measurement and monitoring system.

The central processing unit is an industrial integrated measurement and monitoring system, characterized in that it combines, processes, and calculates a plurality of measurement data collected from various sensors through internal firmware software, and transmits it to the outside.

The measurement system; A sensor device unit for acquiring a state signal of the driving body and transmitting it to the terminal unit; It is an industrial integrated measurement and monitoring system that includes.

The sensor device unit is mounted on a vehicle or industrial facility and equipment, and acquires one or more physical quantities selected from variations in strain, acceleration, vibration, impact, rotational speed, temperature, pressure, and distance, and transmits it to the terminal of the measuring device. It is an industrial integrated measurement and monitoring system.

The sensor device unit,

It is an industrial integrated measurement and monitoring system, characterized in that it includes a power supply for independent operation.

The measurement system; A terminal unit, characterized in that to transmit the signal of the sensor device to the system; It is an industrial integrated measurement and monitoring system that includes.

The terminal unit is an industrial integrated measurement and monitoring system, characterized in that the signal of the sensor device can be transferred to the system in order to transfer the acquired data to the inside of the measurement station.

The measurement system; A signal processing unit for converting the raw data value acquired by the sensor device unit into a processing method including amplification, filtering, and digital conversion; It is an industrial integrated measurement and monitoring system that includes.

The signal processing unit is an integrated industrial measurement and monitoring system that amplifies the original electric signal value transmitted from the sensor device unit with an amplifier, filters electrical noise through a capacitor and a filter element, and converts digitally to an ADC.

The measurement system; An external communication unit enabling external access to check the measurement data and control the measurement system; It is an industrial integrated measurement and monitoring system that includes.

The external communication unit is an industrial integrated measurement and monitoring system, characterized in that when the measurement data is transmitted to the outside or when the user wants to check and control the state of the system, it can be accessed from the outside.

The external communication unit may be divided into a wired-only device and a wireless-only device,

The wired-only device includes a LAN communication device, and the wireless-only device is an industrial integrated measurement and monitoring system including one communication device selected from Wi-Fi or Bluetooth.

The industrial integrated measurement and monitoring system includes: a server (C) for storing and processing data acquired from the measurement device and the processed data; It is an industrial integrated measurement and monitoring system that includes.

The server includes: a regional server that controls the measurement system and provides a function of an access point of a device in case of wireless communication and a function of a hub in case of wired communication; And a central server performing any one or more functions selected from collecting, storing, processing, and analyzing the data. It is an industrial integrated measurement and monitoring system that includes.

The control system is an industrial integrated measurement and monitoring system comprising a display screen, a touch panel for selecting and operating basic functions, a keyboard, and an input device such as a mouse.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram schematically showing an industrial integrated measurement and monitoring system according to an embodiment of the present invention.

As shown in FIG. 1, the industrial integrated measurement and monitoring system according to the present invention is composed of a measurement system 100, a control system 200, a local server 300, and a central server 400.

The measurement system 100 includes a central processing unit 110 in charge of controlling a measurement device and secondary processing of measurement data, a sensor device unit 120 that acquires a status signal of a driving body and transmits it to a terminal unit, and a signal line of the sensor device. A terminal unit 130 for physical connection, a storage unit 140 for amplifying, filtering, measuring data or secondary processing data for amplifying and filtering the original data value of the electric signal of the sensor, digital conversion of raw data received from the sensor device It consists of a signal processing unit 150 that converts and processes a valid value by a method such as a method, and an external communication unit 160 that enables access from the outside to check measurement data and control the measurement system.

The central processing unit 110 is in charge of controlling the entire measurement apparatus, and transmits a plurality of measurement data collected from various sensors through the internal firmware software to an external communication unit to be stored inside the measurement apparatus or transmitted to the outside. Here, the firmware is software including the operation, control, and logic of the measurement system and follows the system operation procedure of FIGS. 1 and 4. Specifically, it connects to a network that can be connected to an external server, and transmits/receives or deletes stored data according to a control system or other user command. In addition, it includes a calculation formula for converting digital values such as 10, 12, and 16 bits transmitted through the ADC signal processing unit into actual physical values such as vibration and rotational speed, and a calibration mode to derive the calculation formula. Here, calibration is to compare a known reference value with an unknown value measured by the sensor unit. For example, in the case of an acceleration sensor, based on the occurrence of 1g in the center of the earth and 0g in the front/side direction, the signal value at that time is measured, and the correlation between the electrical signal and the physical acceleration value is derived based on this. It's a process. The calibration process is performed by the user by manipulation of the control system 200, but the calculation formula is included in the firmware of the measurement system 100. As shown in FIG. 4, the firmware simply checks whether there is an error and calculates a representative value according to the transmission period. Here, the transmission cycle is a value previously determined by the user, such as one operation of the machine, and the reference value is a data value that occurs in a normal state without failure. If it is out of this, it is a value that can be considered to indicate an abnormality such as failure, abnormal noise, and vibration. Says range. The representative value is, for example, the maximum rotational speed (RPM) of the rotating shaft or the average vibration value (g) of a structure near the rotating shaft, which represents the operating characteristics of the part, or is a representative indicator that affects the result that the user wants to analyze, such as a failure. The firmware is also in charge of calculation for a sensor device that forms one physical value by collecting a plurality of sensor signals, such as calculating a heading angle using an inertial sensor (IMU). It delivers electrical signals for relays for calibration, and finally, in order to store data in a storage device, it determines the structure of the database (DB), input/output type, and controls the creation/storage of metadata such as operation time.

The sensor device unit 120 is a device that is mounted on a vehicle or industrial facility/equipment to acquire physical quantities such as strain, acceleration or vibration/shock, rotational speed, temperature, pressure, and distance changes, and transmit them to the terminal of the measuring device. . In the case of the strain measurement system as shown in FIG. 2, it includes a bridge circuit for precise measurement and calibration. In the case of a wireless system, the sensor device unit is physically combined with the signal processing unit as shown in Fig. 3, so that the sensed signal is directly amplified, filtered, and digitally converted, and transmitted to the main body of the measurement system through wireless transmission. It contains a simple microprocessor and firmware, and includes a power supply such as a battery for standalone operation.

The terminal part 130 is a terminal terminal part that enables the signal line of the sensor device to be physically connected into the system in order to transmit the acquired data to the inside of the measuring device, and in the case of a wireless sensor system, a wireless signal of the sensor device part can be received. It is a receiving device.

The storage unit 140 is a device that stores measured data or secondary data processed by a central processing unit.

The signal processing unit 150 functions to convert raw electrical signal data values (Raw Data) acquired from a sensor into valid values that can be utilized in a system or a user through various methods such as amplification, filtering, digital conversion, and the like. The original electrical signal value delivered to the signal processing unit is a small analog value of several mV or less, amplified by an amplifier so that it can be used in the subsequent process, and filtered through electrical noise through a capacitor and filter element, and then digitally converted to an ADC.

The external communication unit 160 transmits measurement data to the outside, or when the user wants to check and control the state of the system, the external communication unit 160 makes it possible to access it from outside, such as a local server.

In addition, the external communication unit 160 may be divided into a wired-only device and a wireless-only device, and the wired-only device may include a LAN communication device, and the wireless-only device may include a Wi-Fi or Bluetooth communication device. Not limited.

Lastly, external systems/devices such as the control system, regional server, and central server are linked/included with the measuring device to compose the entire system.

The control system 200 is a device connected to the local server 300 to check the status of the measurement device from the outside or control functions, and an input device such as a display screen and a touch panel for selecting/manipulating basic functions, a keyboard, a mouse, etc. It consists of Accordingly, the control system can be configured as a dedicated computer device or simply a device such as a mobile phone or a tablet.

The regional server 300 controls the measurement system 100 within one area of the plant and provides the function of an access point of wireless communication devices such as Wi-Fi or Bluetooth, and the function of a hub in the case of wired communication. to be. In order to check data in the measurement system 100 according to a user's command transmitted from the control system 200 or to control movement/copy/delete, etc., the individual system 100 is connected and measurement data for each area is collected. The database is updated by performing statistical analysis and simple engineering analysis of the collected data, and the updated database is made to be confirmed by the zone manager through the control system 200 or transmitted to the central server 400.

The central server 400 collects/stores measurement data, and performs data processing and analysis according to the user's request, equipment, and vehicle conditions. Measurement data can be sorted according to the user's needs and only necessary data can be selected, and a low pass, high pass, Kalman filter, etc. are additionally applied to the noise that cannot be filtered by the signal processing unit of the measurement system 100. Shown in text or graph form. In addition to this, the user can input failure information data separately acquired and show the data distribution accordingly to check the impact, or further analyze the cause of occurrence through engineering analysis methods such as machine learning, deep learning, and fatigue damage. Includes.

According to the present invention, it becomes possible to push communication between the control system and the measurement system through the above configuration. The push method is characterized in that, unlike the polling method in which a response is continuously sent and received at a certain period, the measurement system transmits an abnormal signal, that is, an event, to the control system only. This has high utility and efficiency in secondary applications such as condition monitoring, diagnosis and failure prediction in vehicles and industrial plant facilities.

The present invention described above is not limited by the above-described embodiments and the accompanying drawings, and various substitutions, modifications and changes are possible within the scope of the technical spirit of the present invention. It would be obvious to those of ordinary skill.

100: measurement system 110: central processing unit
120: sensor device unit 130: terminal unit
140: storage unit 150: signal processing unit
160: external communication unit 200: control system
300: regional server 400: central server

Claims (15)

In the industrial integrated measurement and monitoring system,
A measurement system (A) that acquires raw data from a sensor and converts, processes, and additionally calculates; And
A control system (B) for checking a state of the measurement system or controlling a function;
Includes;
The measurement system (A) includes a central processing unit that is in charge of processing and additional calculation of the converted data, and selectively controls data transmission by performing a function of transmitting/receiving or deleting data according to a user's command to increase efficiency;
Industrial integrated measurement and monitoring system.
The method of claim 1,
The central processing unit,
Industrial integrated measurement and monitoring system, characterized in that it combines, processes and calculates a plurality of measurement data collected from various sensors through internal firmware software, and transmits it to the outside.
The method of claim 1,
The measurement system;
A sensor device unit for acquiring a state signal of the driving body and transmitting it to the terminal unit;
Industrial integrated measurement and monitoring system comprising a.
The method of claim 3,
The sensor device unit,
Integrated industrial measurement and measurement, characterized in that it is installed in a vehicle or industrial facility and equipment, acquires one or more physical quantities selected from variations in strain, acceleration, vibration, shock, rotational speed, temperature, pressure, and distance and transmits them to the terminal of the measuring device Monitoring system.
The method of claim 3,
The sensor device unit,
Industrial integrated measurement and monitoring system, characterized in that it includes a power supply for independent operation.
The method of claim 1,
The measurement system;
A terminal portion capable of transmitting a signal from the sensor device to a system;
Industrial integrated measurement and monitoring system comprising a.
The method of claim 6,
The terminal portion,
Industrial integrated measurement and monitoring system, characterized in that the signal from the sensor device can be transferred to the system in order to transfer the acquired data into the measurement politics.
The method of claim 1,
The measurement system;
A signal processing unit for converting the raw data value acquired by the sensor device unit into a processing method including amplification, filtering, and digital conversion;
Industrial integrated measurement and monitoring system comprising a.
The method of claim 8,
The signal processing unit,
An integrated industrial measurement and monitoring system comprising amplifying the original electrical signal value transmitted from the sensor device with an amplifier, filtering electrical noise through a capacitor and a filter element, and converting digitally to an ADC.
The method of claim 1,
The measurement system;
An external communication unit enabling external access to check the measurement data and control the measurement system;
Industrial integrated measurement and monitoring system comprising a.
The method of claim 10,
The external communication unit,
Industrial integrated measurement and monitoring system, characterized in that it enables external access when measuring data is transmitted to the outside or when a user wants to check and control the state of the system.
The method of claim 10,
The external communication unit,
It can be divided into wired-only devices and wireless-only devices,
The wired-only device includes a LAN communication device, and the wireless-only device includes one communication device selected from Wi-Fi or Bluetooth.
The method of claim 1,
The industrial integrated measurement and monitoring system,
A server (C) for storing and processing the data acquired by the measuring device and the processed data;
Industrial integrated measurement and monitoring system comprising a.
The method of claim 13,
The server,
A regional server that controls the measurement system and provides a function of an access point of the device in case of wireless communication and a function of a hub in case of wired communication; And
A central server that performs one or more functions selected from collecting, storing, processing, and analyzing the data;
Industrial integrated measurement and monitoring system comprising a.
The method of claim 1,
The control system,
An integrated industrial measurement and monitoring system comprising a display screen and input devices such as a touch panel, a keyboard, and a mouse for selecting and operating basic functions.

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