KR101573500B1 - Wireless communication data logger, plant monitoring system and methods using the same - Google Patents

Abstract

Disclosed are a wireless communication data logger, and plant monitoring system and method by using the same. According to the present invention, the wireless communication data logger includes: a collection data generation unit which collects data transmitted from multiple sensors installed at different locations in a plant; a sensing data generation unit which senses at least one of temperature, humidity, and pressure to generate data; a stability determination unit which compares the data provided by the collection data generation unit and the sensing data generation unit with a standard data stored in advance to analyze the data and determine the stability of the plant accordingly; a control command generation unit which generates a control command for controlling the facilities of the plant based on the determination result from the stability determination unit; and a communications unit which transmits the control command generated by the control command generation unit to a controller.

Description

TECHNICAL FIELD [0001] The present invention relates to a wireless communication data logger, a wireless communication data logger, and a plant monitoring system and method using the wireless log data logger.

The present invention relates to a wireless communication data logger and a plant monitoring system and method using the same. More particularly, the present invention relates to a wireless communication data logger and a plant monitoring system and method using the industrial wireless data logger employing ISA100.11a-based industrial standard wireless communication technology to monitor the health of plant facilities and to manage high-risk facilities in an integrated manner.

In the past, the management of various facilities related to industrial plants has become a mainstay due to the difficulty of real-time monitoring and the application of automated control technology. In the case of refineries or facilities with high energy related risks, managers or employees Are collecting operation control and status data manually.

Such conventional plant facility management can not be quickly responded to in the event of an accident because it is difficult to manage in real time. Especially, in case of high-risk facilities, it is inconvenient for managers to frequently visit the site and check the facility for safe management and accident prevention And may be accompanied by the risk of accidents. Korean Patent Publication No. 10-2008-0055789 exists as a related art.

It is an object of the present invention to enable to reduce the cost of management and operation of plant facilities by introducing wireless communication technology into plant facilities.

It is also an object of the present invention to secure reliability and enable safe operation in system monitoring and control as the plant is managed by utilizing the ISA 100.11a radio control network technology.

It is another object of the present invention to provide a system and a method for controlling facilities inside a plant directly or indirectly through a wireless communication data logger and providing information to a manager's portable terminal or a manager's server in the event of a dangerous situation, .

According to an aspect of the present invention, there is provided a wireless communication data logger including a collection data generation unit for collecting data transmitted from a plurality of sensors installed at different positions of a plant, A stability determining unit for determining stability of the plant by comparing and analyzing the data provided from the collected data generating unit and the sensing data generating unit with the stored standard data, A control command generation unit for generating a control command for controlling facilities of the plant based on the determined result, and a communication unit for transmitting the control command generated by the control command generation unit to the controller.

At this time, the plurality of sensors can sense at least one of deformation, vibration, and inclination of a pipe rack installed in the plant.

At this time, the communication unit can transmit the data provided from the collected data generation unit and the sensing data generation unit and the result determined by the stability determination unit to the portable terminal of the manager or the server of the manager.

At this time, the communication unit can operate based on the ISA 100.11a industrial standard wireless communication technology.

According to another aspect of the present invention, there is provided a plant monitoring system including: a plurality of sensors installed at different positions of a plant to sense an environment around the plant; A wireless communication data logger for determining the stability of the plant based on the data and generating a control command for controlling the plant facilities in accordance with the determined result, Lt; / RTI >

At this time, the wireless communication data logger can transmit the location information of the plant facilities to the portable terminal of the manager or the server of the manager.

At this time, the wireless communication data logger compares data received from the plurality of sensors with previously stored standard data, and when the plant is determined to be in a high risk, a message informing the manager's portable terminal of the abnormality Or an alarm can be transmitted.

At this time, the plurality of sensors may be at least one of a pressure sensor, a temperature sensor, a stress sensor, and an acceleration sensor.

At this time, the wireless communication data logger can operate based on the ISA 100.11a industrial standard wireless communication technology.

In accordance with another aspect of the present invention, there is provided a method for monitoring a plant, comprising the steps of: sensing an environment around a plant by a plurality of sensors; Determining a stability of the plant on the basis of the sensed data in the sensing the environment, determining a stability of the plant by the wireless communication data logger, controlling the plant equipments in response to the determination result, And controlling the plant facilities based on the control command generated in the step of generating the control command by the controller.

In this case, the step of determining stability of the plant may further include transmitting, to the server of the manager's portable terminal or the manager, the result determined in the step of determining the stability of the plant by the wireless communication data logger have.

At this time, the plurality of sensors can sense at least one of deformation, vibration, and inclination of a pipe rack installed in the plant.

According to the present invention, it is possible to reduce the cost of managing and operating plant facilities by introducing wireless communication technology into plant facilities.

In addition, according to the present invention, system management and control can be performed by securing reliability and stability as the plant is managed by utilizing the ISA 100.11a wireless control network technology.

Further, according to the present invention, it is possible to control plant facilities directly or indirectly through a wireless communication data logger and to provide information to a manager's portable terminal or a manager's server in the event of a dangerous situation, It is effective.

1 is a schematic diagram of a wireless communication data logger and plant monitoring system according to the present invention.
2 is a diagram for explaining a configuration of a wireless communication data logger according to the present invention.
3 is a flowchart of a plant monitoring method according to the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail.

It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Hereinafter, the same reference numerals will be used for the same constituent elements in the drawings, and redundant explanations for the same constituent elements will be omitted.

1 is a schematic diagram of a wireless communication data logger and plant monitoring system according to the present invention. 2 is a diagram for explaining a configuration of a wireless communication data logger according to the present invention.

1, a plant monitoring system using a wireless communication data logger according to the present invention includes a plurality of sensors 10, 20, and 30, a wireless communication data logger 100, and a controller 200 . The plurality of sensors 10, 20, and 30 are installed at different positions of the plant to sense the environment around the plant. In some embodiments, the sensors include a pressure sensor, a temperature sensor, a stress sensor, And a sensor. That is, the first sensor 10 shown in FIG. 1 may be a pressure sensor, and the second sensor 20 installed at a position different from the first sensor 10 may be a temperature sensor, 10 and the third sensor 30 disposed at a different position from the second sensor 20 may be an acceleration sensor. Also, according to an embodiment, the plurality of sensors may sense at least one of deformation, vibration, and tilt of a pipe rack installed in the plant.

Preferably, the plurality of sensors are typically installed in the vicinity of facilities within the plant. 1, the first sensor 10 is connected to the periphery of the first facility 1 or to the first facility 1 and is connected to the periphery of the first facility 1 or the environment of the first facility 1, And the second sensor 20 is connected to the periphery of the second facility 2 or the second facility 2 to sense the environment of the second facility 2 or the environment of the second facility 2. [ And the third sensor 30 can be connected to the periphery of the third facility 3 or the third facility 3 to sense the environment of the third facility 3 or the environment of the third facility 3. [ have. In some embodiments, a plurality of sensors may be associated with one facility.

The wireless communication data logger 100 also has a function of determining the stability of the plant based on the data received from the plurality of sensors and generating a control command for controlling the plant equipments in accordance with the determined result do.

2, the wireless communication data logger 100 includes a collection data generation unit 110, a sensing data generation unit 120, a stability determination unit 130, a control command generation unit 140, and a communication unit 150.

The collected data generating unit 110 collects data transmitted from a plurality of sensors installed at different positions of the plant. The transmitted data may be data that is sensed from a plurality of sensors The sensors may be at least one of a pressure sensor, a temperature sensor, a stress sensor, and an acceleration sensor. According to an embodiment, the plurality of sensors may detect at least one of deformation, vibration, and tilt of a pipe rack installed in the plant Can be sensed. That is, there is no limitation on the type of the plurality of sensors, and therefore, no sensor is distinguished as long as it is a sensor capable of sensing the environment of the plant.

The sensing data generation unit 120 senses at least one of temperature, humidity, and pressure to generate data. In the case of the collected data generating unit 110, the wireless communication data logger 100 itself does not sense the environment of the plant but uses the sensed data And the sensing data generation unit 120 generates data by sensing the environment of the plant in the wireless communication data logger 100 itself.

According to an embodiment, the sensing data generation unit 120 may perform various kinds of sensing in the same manner as the plurality of sensors. That is, in addition to temperature, humidity and pressure, at least one of deformation, vibration, and inclination of a pipe rack installed in the plant can be sensed.

The stability determining unit 130 has a function of determining the stability of the plant by comparing and analyzing the data provided from the collected data generating unit 110 and the sensing data generating unit 120 with the stored standard data . Although not shown in the drawing, the wireless communication data logger 100 according to the present invention may be equipped with a memory, and the standard data may be stored in the memory. The standard data includes reference data that can determine an ideal operating condition of the plant facility or a risk of the plant facility. Therefore, the standard data should be understood as data that can be used as a criterion in analyzing the data provided from the collection data generation unit 110 and the sensing data generation unit 120.

Also, the standard data can be updated from an external server or a portable terminal of an administrator through the communication unit 150, which will be described later.

If it is determined that the plant is in high risk as a result of the stability determination by the stability determination unit 130, the communication unit 150 of the portable terminal 300 shown in FIG. 1 or the server of the administrator A message or an alarm indicating that the plant is abnormal can be transmitted to the control unit 400.

In addition, the control command generator 140 generates a control command for controlling facilities of the plant based on the result determined by the stability determining unit 130. That is, as shown in FIG. 1, the controller 200 can control various facilities located in the plant. The controller 200 transmits a control command for controlling the various facilities to the control command generator 140 . However, according to the embodiment, the wireless communication data logger 100 itself can directly control various facilities by transmitting control commands to various facilities without sending a control command to the controller 200. [ Here, the controller 200 may be configured to control the plant facilities based on control commands received from the wireless communication data logger.

The communication unit 150 transmits the control command generated by the control command generation unit 140 to the controller 200. At this time, the communication unit 150 can operate based on the ISA 100.11a industrial standard wireless communication technology.

Specifically, with respect to ISA 100.11a, the radio control network technology used in an industrial environment can be used for non-periodic emergency data such as device malfunction, malfunction alarm, and periodic I / O data transmission for device status and control We are satisfied with reliability and real time. Due to these constraints, most wired-based control networks and fieldbus technologies were used in the field. However, in recent years, as the performance and reliability of wireless communication technology have improved and the price per node has become cheaper, wireless control communication technologies such as ISA 100.11a have been utilized. ISA 100.11a provides interoperability between ISA 100.11a devices while allowing coexistence with other wireless devices that may be in the plant (industrial site), such as cell phones, IEEE 802.11 based devices, IEEE, 802.116 based devices And coexistence with other wireless standards are supported. That is, the ISA 100.11a is the first work defined in the ISA Wireless Working Group and can provide reliable and secure operation in the field of system monitoring and control.

The target system for implementing industrial application systems using ISA 100.11a refers to the performance conditions for real-time monitoring and control field with a delay time of 100 ms. ISA 100.11a is an open standard that anyone can implement and use Interworking with 6LowPAN is supported so that end users can use it without complexity. In addition, ISA 100.11a uses an intelligent channel hopping algorithm to eliminate interference with multi-path to other wireless devices, which has the effect of increasing reliability by preventing continued use of low-performance frequencies.

Therefore, since the wireless communication data logger according to the present invention requires internet interworking of the wireless devices applied in the field, it can operate more efficiently as it is used on the basis of the ISA 100.11a.

Hereinafter, a plant monitoring method according to the present invention will be described. As described above, the description of the technical contents overlapped with the wireless communication data logger and the plant monitoring system using the same according to the present invention will be omitted.

4 is a flowchart of a plant monitoring method according to the present invention.

Referring to FIG. 4, the method for monitoring a plant according to the present invention includes the steps of sensing an environment around a plant (S100), determining stability of the plant based on the sensed data (S110) (S120) of generating a control command for controlling the plant equipment (S120) and controlling the plant facilities based on the control command (S130).

More specifically, in step S100, the environment around the plant is sensed by the plurality of sensors when the sensor is advanced by the plurality of sensors. As described above, the environment around the plant refers to a concept including temperature, humidity, pressure, and the like inside the plant. The environment around the plant includes at least one of deformation, vibration and inclination of a pipe rack installed in the plant through the plurality of sensors Can be sensed.

After step S100, depending on the embodiment, the environment around the plant may be sensed by a wireless communication data logger. In step S100, the plant environment is sensed through a plurality of sensors other than the wireless communication data logger, but the plant environment can be directly sensed by the wireless communication data logger.

Step S120 is followed by step S120. In step S120, the stability of the plant is determined based on the data sensed in step S110 by the wireless communication data logger. An algorithm for determining the stability of the plant may be stored in the memory of the wireless communication data logger. That is, the stability of the plant is determined by comparing and analyzing the standard data stored in the memory of the wireless communication data logger with the data sensed in step S110.

After step S120, a control command is generated by the wireless communication data logger in accordance with the result determined in step S120 (S130). In some embodiments, the wireless communication data logger may directly control the plant facility based on the generated control command. After the step S130, the controller controls the plant facilities (S140). That is, the controller transmits the control command generated in step S130 to the controller, and the controller that receives the control command controls the plant facilities. The method may further include, after step S120, transmitting a result of the stability determination of the plant by the wireless communication data logger to the server of the manager's portable terminal or the manager. In this case, not only the judgment result, but also the location information of the facilities which have a problem or malfunction inside the plant can be provided, and information on the usage life of the internal facilities and the equipment history can be provided.

The description sets forth the best mode of the invention, and is provided to illustrate the invention and to enable those skilled in the art to make and use the invention. The written description is not intended to limit the invention to the specific terminology presented.

Thus, while the present invention has been described in detail with reference to the above examples, those skilled in the art will be able to make adaptations, modifications, and variations on these examples without departing from the scope of the present invention. In short, in order to achieve the intended effect of the present invention, it is not necessary to separately include all the functional blocks shown in FIGS. 1 and 2 or to follow the sequence shown in FIG. 3 in the order shown, It is to be noted that the present invention may fall within the technical scope of the present invention described.

100: Wireless communication data logger
110: collection data generation unit
120: Sensing data generation unit
130: stability determination unit
140: Control command generation unit
150:
200: controller
300: Manager's portable terminal
400: Manager's server
1: First facility
2: Second facility
3: Third facility
10: first sensor
20: second sensor
30: Third sensor

Claims (12)

In a wireless communication data logger,
A collection data generation unit for collecting data transmitted from a plurality of sensors installed at different positions of the plant;
A sensing data generation unit for sensing at least one of temperature, humidity, and pressure to generate data;
A stability determining unit for comparing the data provided from the collected data generating unit and the sensing data generating unit with previously stored standard data to determine the stability of the plant;
A control command generator for generating a control command for controlling facilities of the plant on the basis of a result determined by the stability determining unit; And
And a communication unit for transmitting the control command generated by the control command generation unit to the controller,
Wherein the collected data generator collects data obtained by sensing the environment around the plant from the plurality of separate sensors other than the wireless communication data logger and the sensing data generator senses the environment of the plant in the wireless communication data logger itself, ≪ / RTI >
Wherein the plurality of sensors sense at least one of deformation, vibration, and inclination of a pipe rack installed in the plant,
Wherein the communication unit operates based on ISA 100.11a industrial standard wireless communication technology. delete The method according to claim 1,
Wherein,
The data provided from the collection data generation unit and the sensing data generation unit, and the result determined by the stability determination unit, to the server of the manager's portable terminal or the manager. delete In a plant monitoring system,
A plurality of sensors installed at different positions of the plant to sense the environment around the plant;
A wireless communication data logger for determining the stability of the plant based on the data received from the plurality of sensors and generating a control command for controlling the plant facilities according to the determined result; And
And a controller for controlling the plant facilities based on a control command received from the wireless communication data logger,
The wireless communication data logger includes a collection data generation unit for collecting data obtained by sensing the environment around the plant from the plurality of sensors and a sensing data generation unit for sensing data of the environment of the plant by the wireless communication data logger itself ≪ / RTI &
Wherein the plurality of sensors sense at least one of deformation, vibration, and inclination of a pipe rack installed in the plant,
The sensing data generation unit senses at least one of temperature, humidity, and pressure to generate data,
Wherein said wireless communication data logger operates on the basis of ISA 100.11a industrial standard wireless communication technology. The method of claim 5,
The wireless communication data logger includes:
And transmits the location information of the plant facilities to a portable terminal of a manager or a server of an administrator. The method of claim 5,
The wireless communication data logger includes:
And transmits a message or an alarm notifying the manager's portable terminal of the abnormality when it is determined that the plant is in a high risk by comparing the data received from the plurality of sensors with the stored standard data. Monitoring system. The method of claim 7,
Wherein the plurality of sensors comprises:
A pressure sensor, a temperature sensor, a stress sensor, and an acceleration sensor. delete In a plant monitoring method,
Sensing an environment around the plant by a plurality of sensors installed at different positions of the plant;
Determining the stability of the plant based on the sensed data at the sensing of the environment around the plant by the wireless communication data logger;
Generating a control command for controlling the plant equipments in response to a result determined in the step of determining the stability of the plant by the wireless communication data logger; And
Controlling the plant facilities based on the control command generated in the step of generating the control command by the controller,
The wireless communication data logger includes a collection data generation unit for collecting data obtained by sensing the environment around the plant from the plurality of sensors and a sensing data generation unit for sensing data of the environment of the plant by the wireless communication data logger itself ≪ / RTI &
Wherein the plurality of sensors sense at least one of deformation, vibration, and inclination of a pipe rack installed in the plant,
The sensing data generation unit senses at least one of temperature, humidity, and pressure to generate data,
Wherein the wireless communication data logger is based on ISA 100.11a industrial standard wireless communication technology. The method of claim 10,
After determining the stability of the plant,
Further comprising the step of transmitting a result of the determination made by the wireless communication data logger to the stability terminal of the plant to the server of the manager or the portable terminal of the manager. delete

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