KR101906765B1 - Equipment operation status monitoring system using piezoelectric elements - Google Patents

Abstract

The present invention relates to an equipment operation status monitoring system using piezoelectric elements and, more specifically, to an equipment operation status monitoring system using piezoelectric elements which uses a monitoring module attached to rotating and vibrating equipment at an industrial plant site such as a power plant to monitor target equipment at a remote location in real time and display monitoring results as visual information to allow a manager to easily check for an abnormal status of the target equipment. Specifically, the present invention can install a self-powered monitoring module to use vibration of a prescribed pattern generated by target equipment to produce electric energy by a simple attaching method to allow installation on a variety of equipment without installation limitations, and operate in response to various vibration frequencies to actively respond to changes in vibration frequencies due to part replacement and deterioration to stably maintain requirement performance. Therefore, reliability and competitiveness can be increased in a monitoring field for industrial plant equipment such as a power plant, a new renewable energy field, a green energy field, a self-generation field, and similar or related fields.

Description

[0001] The present invention relates to a piezoelectric element,

The present invention relates to a plant operation state monitoring system using a piezoelectric element, and more particularly, to a plant monitoring system using a piezoelectric element, in which a target plant is monitored in real time using a monitoring module attached to rotation and vibration equipments in an industrial plant site, By displaying the result as visual information, the manager can easily check the abnormal state of the target facility.

Particularly, the present invention can install the self-generating type monitoring module, which generates electric energy using a certain pattern of vibration generated in the target facilities, in a simple attachment manner, so that it can be installed in various facilities without restriction of installation The present invention relates to a plant operation state monitoring system using a piezoelectric element capable of stably maintaining required performance by positively responding to changes in vibration frequency due to component replacement and aging by making it possible to operate corresponding to various vibration frequencies.

Generally, a large number of equipments are operated in industrial plant sites such as power plants, and in particular, many equipments such as motors which constantly move constantly, and equipments that generate a certain pattern of vibration through repetitive motion are operated.

Most of such facilities operate in conjunction with each other. If an abnormality occurs in one of the facilities, the entire facility may be interrupted or cause a dangerous situation.

For this reason, it is necessary to continuously check whether each facility is normally operated in the relevant site.

However, in the industrial sites such as the power plants described above, not only a large number of facilities are concentrated in a wide space due to the operational characteristics of the facilities, but also considerable noise is generated from a large number of facilities. Therefore, There is an inconvenience in that the administrator must check the operation state while searching for the target facilities installed in a large area.

In order to solve this inconvenience, VMS (Vibration Monitoring System) is installed in power plants and monitored by HMI (Human Machine Interface). However, since VMS equipment itself is expensive, .

In this way, facilities such as low-voltage vibrators and pumps except for high-voltage motors are not being monitored in the field of industrial plants such as power plants. However, vibration monitoring systems are not applied to real-time monitoring systems Failure to do so may affect the operation of the entire installation.

As a result, it is necessary to monitor all necessary equipments and devices in order to efficiently operate various equipments in industrial plant sites such as power plants. Therefore, the development of monitoring apparatuses and systems with low installation cost and easy operation and maintenance Required.

As a technique for solving this problem, there is a device for checking the operation state of a motor using a vibration sensor (hereinafter, referred to as 'prior art') as disclosed in Korean Unexamined Utility Model Publication No. 20-2017-0002137.

Background Art [0002] The prior art relates to a device that can check the operation status of a motor using electric energy generated by using a vibration piezoelectric sensor. Although satisfying the above-described requirements, there are some unsatisfactory parts.

First, all facilities or devices have their own vibration frequency. In the prior art, since the device operates only at a specific vibration frequency, in order to monitor a large number of equipment installed in the field, It is necessary to build and install each device that operates at the vibration frequency.

Secondly, since most of the facilities can be continuously changed in the process of operating the vibration frequency, especially when the maintenance is carried out by replacing specific parts, the vibration frequency during operation of the corresponding equipment can be significantly changed, It may be mistakenly assumed that the equipment of the prior art installed is not operated and that there is an abnormality in the equipment.

Third, in order to solve this problem, it is necessary to replace the prior art devices installed in the relevant equipment. In case of replacement, it is necessary to re-measure the vibration frequency of the corresponding equipment and to manufacture and install new devices accordingly. It is costly and time-consuming to cause a problem that smooth operation can not be performed.

Fourth, even if the facility is stably maintained, a phenomenon that the prior art does not correspond to the same vibration frequency due to a change in performance due to deterioration of the apparatus itself may occur. Even in this case, The apparatus of FIG.

Korean Utility Model Publication No. 20-2017-0002137 'Apparatus for checking the operation status of a motor using a vibration piezoelectric sensor'

In order to solve the above problems, the present invention uses a monitoring module attached to rotation and vibration equipments in an industrial plant site such as a power plant to monitor the target facilities in real time at a remote place and display the result as visual information And an object of the present invention is to provide a facility operation state monitoring system using a piezoelectric element that allows an administrator to easily check an abnormal state of a target facility.

Particularly, the present invention can install the self-generating type monitoring module, which generates electric energy using a certain pattern of vibration generated in the target facilities, in a simple attachment manner, so that it can be installed in various facilities without restriction of installation It is an object of the present invention to provide a facility operation state monitoring system using a piezoelectric device that can be used in various facilities in general by making it possible to operate in response to various vibration frequencies.

Further, the present invention can actively change the vibration frequency necessary for generating electric energy through a simple operation or automatic control, and it is possible to change the vibration frequency due to component replacement or deterioration occurring during operation of the facilities and monitoring apparatuses The present invention is directed to a system for monitoring operation status of a facility using a piezoelectric element that enables stable operation even in a single apparatus.

In order to achieve the above object, a system for monitoring operation status of a plant using a piezoelectric element according to the present invention is configured to be attached to one side of each target facility constituted in an industrial plant, and the vibration energy generated during operation of the target facility A plurality of monitoring modules for converting the electrical energy into electrical energy and transmitting the operation of the target facility using the converted electrical energy; And an integrated management server for verifying whether or not each target facility transmitted from the monitoring modules is operating and managing operation of the entire industrial plant.

The integrated management server may be configured to receive module status information including at least one of a vibration frequency of the monitoring module and a converted electric energy amount from the monitoring modules in cooperation with an administrator terminal controlled by an administrator, To be displayed on the administrator terminal, and to control the monitoring module in response to the manager control information input to the manager terminal by the manager.

The integrated management server continuously monitors the amount of electric energy converted by the monitoring module and displays the reduced amount of electric energy in the manager terminal when the amount of electric energy is reduced to less than a minimum required power, The control module may adjust the vibration frequency of the monitoring module according to any one of the manager control information transmitted from the manager terminal to change the vibration frequency to produce a larger amount of electric energy or a maximum electric energy than the minimum required power.

When the amount of electric energy does not increase to meet the minimum required power in the process of adjusting the vibration frequency of the monitoring module, the integrated management server displays the corresponding information on the manager terminal and performs the set warning procedure can do.

And an ESS (Energy Storage System) for storing at least a part of the converted electric energy in the monitoring module, wherein the integrated management server further comprises an electric energy storage unit for storing electric energy stored in the ESS, It is possible to control to supply at least a part thereof.

The monitoring module may include: a vibration generator having a plurality of piezoelectric elements arranged in a plurality of stages to generate electric energy corresponding to a specific vibration frequency generated when the target facility is operated; And a display unit for outputting the operation status of the target facility using the electric energy generated in the vibration generator.

Further, the vibration generating section may be arranged stepwise at an interval corresponding to the maximum amplitude at which the piezoelectric element vibrates.

Further, the piezoelectric element may include a variable frequency type piezoelectric element capable of adjusting a vibration frequency for generating electric energy.

Further, the variable frequency type piezoelectric element includes: a vibration plate having one longitudinal end fixed in one direction and vibrating in the other direction; A piezoelectric sheet attached to at least a part of the vibrating plate in another direction; And a wavelength adjusting unit moving along one direction of the vibration plate and adjusting a length of a wavelength at which the vibration plate vibrates.

The wavelength adjusting unit may include a pressing member that moves along one direction of the vibration plate and supports the vibration plate so as to be linearly contacted with the vibration plate in a direction perpendicular to the one direction so as to adjust a length of a wavelength at which the vibration plate vibrates. ; ≪ / RTI >

According to the above-mentioned solution, in the present invention, more specifically, a monitoring module attached to rotation and vibration equipments in an industrial plant site such as a power plant is used to monitor target equipments at a remote place in real time, So that the manager can easily confirm the abnormal state of the target facility.

In particular, since the present invention is a self-generating type monitoring apparatus that generates electric energy using a certain pattern of vibration generated in the attached target facilities, it is possible to produce eco-friendly energy. There is no restriction and it can be operated conveniently.

In addition, since the present invention can operate in response to various vibration frequencies, it can be widely used in various facilities and can be utilized in various fields actively.

As a result, the present invention can greatly expand the market for monitoring devices using environmentally friendly energy, positively activate utilization of green energy throughout the industry, and solve environmental pollution problems such as air pollution and water pollution There is an effect that can help.

Further, the present invention can actively change the vibration frequency necessary for generating electric energy through simple operation or automatic control, and actively respond to the change of the vibration frequency generated during the operation of the facility and the monitoring apparatus , There is an advantage that stable operation can be continuously performed even with one device.

Further, the present invention is advantageous in that the eco-friendly energy generated through the monitoring device during the operation of the facility can be used as a reserve power after charging the ESS (Energy Storage System) or the like, or used for driving a low power sensor and an LED have.

In addition, since the present invention is a self-generating type monitoring apparatus that generates electric energy using vibration generated in the facility, it is possible to greatly reduce the construction cost of a real-time monitoring system, .

Therefore, in addition to the monitoring field of industrial plant facilities such as power plants, reliability and competitiveness can be improved in the fields of renewable energy, green energy, self-power generation, and the like and related fields.

1 is a block diagram showing an embodiment of a plant operation state monitoring system using a piezoelectric element according to the present invention.
2 is a flowchart illustrating an embodiment of the function of the integrated management server shown in FIG.
3 is a use state diagram of the monitoring module shown in FIG.
4 is a perspective view showing an embodiment of the monitoring module shown in FIG.
5 is a view for explaining the configuration of the vibration generator shown in Fig.
6 is a partially enlarged view for explaining the function of the vibration generator shown in FIG.
7 is a perspective view showing another embodiment of Fig.
8 is a view for explaining the vibration generator shown in Fig.
Fig. 9 is a view showing embodiments of the pressurizing support shown in Fig. 8. Fig.
10 is a perspective view showing still another embodiment of FIG.
11 is a view for explaining a configuration of the wavelength adjustment unit shown in Fig.
12 is a diagram for explaining the function of the wavelength adjustment unit shown in FIG.

An example of a plant operation state monitoring system using the piezoelectric element according to the present invention can be variously applied, and a most preferred embodiment will be described below with reference to the accompanying drawings.

1 is a block diagram showing an embodiment of a plant operation state monitoring system using a piezoelectric element according to the present invention.

Referring to FIG. 1, a plant operation state monitoring system using a piezoelectric element includes a monitoring module 10 and an integrated management server 20.

The monitoring module 10 is configured to be attached to one side of each target facility constructed in an industrial plant such as a power plant, and converts the vibration energy generated during operation of the target facility to electric energy using the piezoelectric device.

Also, the monitoring module 10 uses the converted electrical energy to display the operation of the target facility as visual information or transmits the visual information to the integrated management server 20. [

The specific configuration of the monitoring module 10 will be described in more detail below.

The integrated management server 20 confirms whether each target facility transmitted from the monitoring modules 10 is operating, and manages operation of the entire industrial plant. For example, when the monitoring module 10 generates electrical energy, the integrated management server 20 can determine that the equipment to which the monitoring module 10 is attached operates in a normal state.

Meanwhile, as shown in FIG. 1, the integrated management server 20 can be interlocked with the administrator terminal 21 used by the administrator. Here, the administrator terminal 21 may include a PC, a notebook, a PDA, a smart phone, and the like.

Accordingly, the integrated management server 20 interlocks with the administrator terminal 21 controlled by the administrator, and can monitor and control the monitoring module 10 remotely.

Specifically, the integrated management server 20 receives module status information including at least one of the vibration frequency of the monitoring module 10 and the amount of the converted electric energy from the monitoring modules 10, As shown in FIG.

Then, the manager confirms the module status information displayed on the administrator terminal 21, inputs a specific command or the like, if necessary, and the integrated management server 20 sends the manager control information input by the administrator to the administrator terminal 21 The monitoring module 10 can be controlled correspondingly.

On the other hand, as described above, the vibration frequency of the vibration generated in the target facility can be changed in the process of using the facility, the replacement of parts due to maintenance, and the deterioration of specific parts.

When the vibration frequency is changed in this way, the amount of electric energy produced can be reduced due to the characteristics of the piezoelectric element resonating at a specific vibration frequency to produce electric energy.

If the amount of electric energy is reduced as described above, the monitoring module 10 may misjudge that the target facility is not operated even though the target facility is normally operated.

Accordingly, in order to continuously check whether or not the facility is operated, it is necessary to check the changed vibration frequency and adjust the monitoring module 10 accordingly.

Hereinafter, the adjustment process of the monitoring module 10 will be described.

2 is a flowchart illustrating an embodiment of the function of the integrated management server shown in FIG.

First, the integrated management server 20 receives module status information transmitted from the monitoring module 10 (S110), and continuously monitors the amount of electric energy converted by the monitoring module 10 (S120) .

Then, the integrated management server 20 may compare the amount of the previously determined electric energy or the average value of the electric energy accumulated over the past predetermined period with the amount of the current electric energy (S130).

As a result of the comparison, if the current amount of electric energy is reduced to the minimum required power or less (S140), the integrated management server 20 can display it on the manager terminal and notify the manager.

Thereafter, the integrated management server 20 adjusts the vibration frequency of the monitoring module 10 according to the set module control information or the manager control information transmitted from the manager terminal (S150) It is possible to make the amount larger than the minimum required power. At this time, it is natural that the integrated management server 20 can change the amount of electric energy converted by the monitoring module 10 to a vibration frequency capable of producing maximum electric energy.

If the current amount of electric energy is greater than the minimum required power (S140), the integrated management server 20 can maintain the current state without changing the vibration frequency of the monitoring module 10 (S160).

On the other hand, the reason why the amount of electric energy converted by the monitoring module 10 decreases may include a case where the target facility is not operated or an abnormality occurs.

Therefore, in the process of adjusting the vibration frequency of the monitoring module 10, when the integrated management server 10 does not increase the amount of electric energy to meet the minimum required power, that is, when vibration does not occur from the target facility , The corresponding information is displayed on the administrator terminal 21 and the set warning procedure can be performed. Here, the set warning procedure may include an alarm sound and an alarm operation, a warning message transmission, and the like.

On the other hand, the monitoring module 10 can produce eco-friendly energy by vibrating the target facility, and can supply such environmentally-friendly electric energy to other facilities.

To this end, the plant operation state monitoring system using the piezoelectric element of the present invention includes an ESS (Energy Storage System) 30 for receiving and storing at least a part of the converted electric energy from the monitoring module 10 (indicated by a dashed arrow in FIG. 1) As shown in FIG.

The integrated management server 20 can control the electric energy stored in the ESS 30 to be supplied to at least a part of the target facilities configured in the corresponding industrial plant. At this time, the electric energy stored in the ESS 30 may be supplied to various devices and modules in various fields, and may be utilized for various purposes such as emergency power generation.

Hereinafter, a monitoring module 10 for producing environmentally friendly energy by converting vibration energy into electric energy using a piezoelectric element will be described in detail.

3 is a use state diagram of the monitoring module 10 shown in FIG.

Referring to FIG. 3, the monitoring module 10 of the present invention can be fixedly mounted on one side of the target facility E, for example, a support frame (not shown) supporting the target facility E and the like.

Thereafter, when the target facility E is operated, the vibration of the target facility E is transmitted to the monitoring module 10 through the support frame, and the monitoring module 10 uses the piezoelectric element to generate electric energy And the operation of the display unit 200 constituted on the front cover 320 as shown in FIG. 4 is activated (lighted), so that the administrator can visually easily confirm whether the target facility E is operated or not.

FIG. 4 is a perspective view showing an embodiment of the monitoring module shown in FIG. 1, and FIG. 5 is a view for explaining a configuration of the vibration generator shown in FIG.

Referring to FIG. 4, a facility operation state monitoring module 10 using a piezoelectric element includes a vibration generator 100 and a display unit 200.

The vibration generating unit 100 converts kinetic energy into electric energy using at least one piezoelectric element 110. The vibration generating unit 100 generates electric power corresponding to a predetermined pattern of vibration generated by a specific vibration frequency generated during operation of the target facility, And generates energy.

The eco-friendly electric energy thus generated is used for driving the display unit 200. Alternatively, the eco-friendly electric energy may be used as spare electric power after charging the ESS 30 or the like as shown in Fig. 1, or a low power sensor And LEDs.

In addition, the vibration generating section 100 may include a plurality of fixed frequency type piezoelectric elements 110 that generate electric energy at different vibration frequencies.

In other words, the vibration generating unit 100 constitutes a plurality of piezoelectric elements 110 and generates electric energy by using at least one of the plurality of piezoelectric elements 110 even if the vibration frequency changes. As described above, The monitoring of the target facility can be continuously and stably operated even if the vibration frequency changes due to the deterioration of the facility or the replacement of parts or the deterioration of the monitoring module 10. [

4, the vibration generating unit 100 may be formed inside the body 310 of the housing 300. As shown in FIG. Here, the housing 300 is configured to be attachable to the target facility, and various methods can be applied to the method of attaching the body 310 to the target facility according to the needs of those skilled in the art.

As shown in FIG. 4, the display unit 200 outputs the operation status of the target facility using the electric energy generated in the vibration generator 100, Lt; / RTI >

Meanwhile, a controller 400 may be provided in the housing 300 to convert the alternating current energy generated in the vibration generating unit 100 into direct current and supply the direct current to the display unit 200.

The control unit 400 may further include a rectifier circuit therein and may further include a secondary battery capable of storing electric energy produced by the vibration generator 100.

In addition, the control unit 400 can perform the function of providing the generated electric energy to the ESS 30 or other devices and configurations as described above, and performs wireless communication with the integrated management server 20 The status information of the target facility E and the monitoring module 10 can be transmitted.

5, a plurality of fixed frequency type piezoelectric elements 110 are configured to vibrate in a vertical direction, and at the same time, the vibration generating unit 100 is arranged in a multi-stage manner in a base 120 along a vibration direction And two fixed frequency type piezoelectric elements 110 adjacent to each other in the vertical direction may be arranged stepwise at regular intervals.

Hereinafter, the reason why the fixed frequency type piezoelectric element 110 of the vibration generating section 100 is arranged step by step will be described.

6 is a partially enlarged view for explaining the function of the vibration generator shown in FIG.

Referring to FIG. 6, the fixed frequency type piezoelectric element 110 generates electrical energy by vibrating the remaining portion except for one side (left side in FIG. 6) fixed to the base 120. The vibration frequency at this time is fixed And the maximum amplitude PP of the other end portion as shown in the enlarged portion also varies depending on the length L of vibration.

On the other hand, when the plurality of fixed frequency type piezoelectric elements 110 are arranged in parallel in the vertical direction, when the maximum amplitude PP is larger than the separation distance 2d of the two adjacent fixed frequency type piezoelectric elements 110, When the end portion of the fixed frequency type piezoelectric element 110 exceeds the center line CL which is the center line of the interval between the two adjacent fixed frequency type piezoelectric elements 110, There is a problem in that they collide with each other in the course of vibration.

Accordingly, as shown in the enlarged part of FIG. 6, the present invention is characterized in that half of the maximum amplitude PP of the terminal end of one fixed frequency type piezoelectric element 110 of two adjacent fixed frequency type piezoelectric elements 110, Frequency type piezo-electric elements 110 are set so that the sum of half the amplitudes at certain points of the other fixed frequency type piezoelectric elements 110 has a step gap G that is smaller than the spacing distance 2d between the two fixed- It is possible to prevent malfunction or damage of the fixed frequency type piezoelectric element 110 due to vibration.

As a result, it is preferable that the vibration generating section 100 is disposed stepwise at intervals corresponding to the maximum amplitude (P-P) at which the fixed frequency type piezoelectric elements 110 vibrate.

In addition, the vibration plate 111 of each fixed frequency type piezoelectric element 110 may be configured to resonate at a different vibration frequency and vibrate, so that even if the vibration frequency of the target facility is changed, have.

The control unit 400 identifies the piezoelectric sheet 112 that produces electrical energy from among the plurality of piezoelectric sheets 112 and confirms the vibration plate 110 constituted by the piezoelectric sheet 112 to determine the current The vibration frequency can be confirmed, and the module status information can be transmitted to the remote site to notify the administrator.

In other words, the control unit 400 may be capable of monitoring a plurality of piezoelectric sheets 112. [

In FIG. 6, a reference numeral '401' denotes a power supply line for supplying electrical energy from the control unit 400 to the display unit 200, and may further comprise a data line for transmitting data when necessary.

In the above description, the piezoelectric element 110 of the vibration generator 100 operates at a specific vibration frequency. However, as described above, it is necessary to operate one piezoelectric element 110 at various vibration frequencies. A more detailed description will be given below.

FIG. 7 is a perspective view showing another embodiment of FIG. 4, and FIG. 8 is a view for explaining the vibration generator shown in FIG.

Referring to FIG. 7, the vibration generator 100 may include at least one variable frequency type piezoelectric element 100 'capable of adjusting a vibration frequency for generating electric energy.

8, the variable frequency piezoelectric device 100 'includes a vibration plate 111 and a vibration plate 111, one end of which is fixed to the base 120 and the other end of which is vibrated, And a wavelength adjusting unit 113 that can adjust the distance L at which the vibration plate 111 vibrates together with the piezoelectric sheet 112 attached to at least a part of the other one side of the vibration plate 111. [

The wavelength adjusting unit 113 moves along one direction of the vibration plate 111 (the direction of 'L' shown in FIG. 6 in the longitudinal direction) and adjusts the length of the wavelength at which the vibration plate 110 vibrates, By pressing and supporting the upper and lower portions of the vibration plate 110, the vibration distance L can be adjusted.

More specifically, the wavelength adjustment unit 113 may include a pressure support 113a, a guide rail 113b, and a guide hole 113c.

The presser support 113a adjusts the length of the wavelength for adjusting the vibration frequency by adjusting the length L of vibration of the vibration plate 111. The pressure support 113a adjusts the length of the wavelength for adjusting the vibration frequency, So as to be supported in a line contact manner.

As a result, the vibration plate 111 is operated at a vibration distance corresponding to the remaining distance excluding the distance that the pressure support member 113a moves, as shown in Fig. 8 (b) .

8, the pressure support 113a includes a first support roller 113a 'for press-supporting one side (upper surface) of the vibration plate 111 so as to be linearly contacted, a first support roller 113a' And a second support roller 113a "for press-supporting the other side surface (lower surface) of the vibration plate 111 so as to be in line contact corresponding to the second support roller 113a.

The movement of the pressure support 113a may be controlled by the control unit 400 described above and the control unit 400 controls the pressure support 113a by the operation of the operator or senses the operation frequency It is possible to automatically control the pressure support member 113a.

For example, the control unit 400 can control the position of the pressure support 113a based on data transmitted from a remote button or a separate button (not shown) configured on the outside of the housing 300. [

As another example, the control unit 400 compares the amount of electric energy produced and the amount of electric energy produced while reciprocally moving the pressure support member 113a, confirms the position where the greatest amount of electric energy is produced, It is possible to control the position of the support member 113a.

In addition, when the electric energy produced as time elapses, the control unit 400 determines that the parts of the target equipment are replaced or the operation frequency is changed for various reasons, and the position of the pressure support unit 113a is changed So that it can move to the position where it produces the greatest amount of electric energy.

Accordingly, even if the parts of the target facility are replaced through maintenance or the operation characteristics are changed due to aging of the respective units, the operation of the target facility can be continuously confirmed with high reliability.

If the production of the electric energy does not increase in the process of changing the position of the pressure support member 113a, or if the electric energy is produced at a reference amount (minimum required electric power) or less, the control unit 400 It can be determined that an interruption or an error has occurred, and the module status information can be notified to the remote site.

Fig. 9 is a view showing embodiments of the pressurizing support shown in Fig. 8. Fig.

9, at least one of the first support roller 113a 'and the second support roller 113a "constituting the pressure support member 113a is formed into a cylindrical shape as shown in Fig. 9 (a) So that some of the outer circumferential surfaces are in line contact.

At least one of the first support roller 113a 'and the second support roller 113a "constituting the pressure support member 113a may be a support rail formed in the longitudinal direction as shown in Fig. 9 (b) 113d may be repeatedly formed at regular intervals along the circumferential direction.

In addition, as long as the first support roller 113a 'and the second support roller 113a "constituting the pressure support member 113a can stably press the analgesic plate 111, the present invention is not limited to a specific shape, Of course.

The variable frequency type piezoelectric element 110 'shown in FIG. 8 may be arranged in multiple stages along the up and down direction in which the vibrating element 110' vibrates. The two adjacent variable frequency type piezoelectric elements 110 ' 'May be stepped at intervals corresponding to the maximum amplitude of oscillation.

Also, one variable frequency type piezoelectric element 110 'may be formed in an extended form, which will be described in detail below.

FIG. 10 is a perspective view showing still another embodiment of FIG. 4, FIG. 11 is a view for explaining the configuration of the wavelength adjustment unit shown in FIG. 10, and FIG. 12 is a view for explaining the function of the wavelength adjustment unit shown in FIG. 10 FIG.

10, a plurality of vibrating plates 111 may be formed so as to be stepped on the base 120, and a plurality of vibrating plates 111 may be formed on the extended wavelength adjusting unit 113 The vibration distance can be adjusted.

As shown in FIG. 11, the extended type wavelength adjustment unit 113 can be arranged in a plurality of pairs of pressure holders 113a corresponding to the vibration plate 111 arranged in a stepped manner.

The plurality of pressure support members 113a can be supported by the guide member 113c of the extended shape and the guide member 113c can be moved while being guided by the plurality of guide rails 113b.

On the other hand, when a plurality of vibration plates 111 are arranged side by side in the width direction (lower left to upper right in FIG. 8) as shown in FIG. 10, the center vibration plate 111 is fixed by the wavelength adjustment unit 113 It may not be fully supported.

Thus, the pressure support member 113a of the wavelength adjustment unit 113 is supported by the sub guide holes 113c 'corresponding to the positions between the vibration plates 111 arranged in the width direction, All of the vibration plates 111 can be stably press-supported even if the vibration plate 111 moves to adjust the length of vibration.

10 to 12 are for controlling all the vibration plates 111 under the same condition. By arranging a plurality of variable frequency type piezoelectric elements 110 'shown in FIG. 8 as described above, It is of course possible to control the variable frequency type piezoelectric elements 110 'to be operated by different operating frequencies.

In addition, the present invention provides various sensors and configurations according to the needs of those skilled in the art, such as a flame detection sensor, a smoke detection sensor, a temperature detection sensor for fire monitoring, an indoor pollution detection sensor, a CO sensor, And the electrical energy for the operation of these sensors and configurations can also be used to generate electrical energy.

The system operation monitoring system using the piezoelectric device according to the present invention has been described above. It will be understood by those skilled in the art that the technical features of the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

It is to be understood, therefore, that the embodiments described above are in all respects illustrative and not restrictive.

10: Monitoring module
20: Integrated management server 21: administrator terminal
30: Energy Storage System (ESS)
100:
200:
110: Fixed frequency type piezoelectric element 110 ': Variable frequency type piezoelectric element
111: vibration plate 112: piezoelectric sheet
113: Wavelength adjustment unit 113a: Pressure holding zone
113a ': first support roller 113a'': second support roller
113b: guide rail 113c: guide hole
113c ': sub guide shed 113d: support rail
120: Base

Claims (10)

And is configured to be attached to one side of each target facility constituted in an industrial plant, converts vibration energy generated during operation of the target facility into electric energy, and transmits a plurality of Monitoring module; And
And an integrated management server for verifying whether or not each target facility transmitted from the monitoring modules is operating and managing operation of the entire industrial plant,
The integrated management server includes:
Receiving module status information including at least one of a vibration frequency of the monitoring module and a converted electric energy amount from the monitoring modules and transmitting the module status information to be displayed on the administrator terminal in cooperation with an administrator terminal controlled by the administrator, Controlling the monitoring module in response to the manager control information input to the manager terminal by the manager,
Continuously monitors the amount of electric energy converted by the monitoring module and displays the reduced amount of electric energy on the manager terminal when the amount of electric energy is reduced to the minimum required electric power,
The control module adjusts the vibration frequency of the monitoring module according to any one of the set module control information and the manager control information transmitted from the manager terminal to change the vibration frequency to produce a larger amount of electric energy or maximum electric energy than the minimum required power And a controller for monitoring the operation state of the equipment using the piezoelectric element.
The method according to claim 1,
The integrated management server includes:
Wherein when the amount of electric energy does not increase to meet the minimum required power in the process of adjusting the vibration frequency of the monitoring module, the information is displayed on the manager terminal and the set warning procedure is performed. Monitoring system for operation status of used facilities.
4. The method according to any one of claims 1 to 3,
And an Energy Storage System (ESS) that stores at least a portion of the converted electrical energy in the monitoring module,
The integrated management server includes:
And controls the electric energy stored in the ESS to be supplied to at least a part of the target facilities configured in the industrial plant.
4. The method according to any one of claims 1 to 3,
The monitoring module includes:
A vibration generator having a plurality of piezoelectric elements arranged in a plurality of stages to generate electric energy corresponding to a specific vibration frequency generated when the target facility is operated; And
And a display unit for outputting the operation status of the target facility using the electric energy generated by the vibration generator.
5. The method of claim 4,
The vibration generator includes:
Wherein the plurality of piezoelectric elements are arranged in a stepped manner at intervals corresponding to the maximum amplitude of vibration of the piezoelectric elements.
5. The method of claim 4,
The piezoelectric element includes:
And a variable frequency type piezoelectric element capable of adjusting a vibration frequency for generating electric energy.
The method according to claim 6,
Wherein the variable frequency type piezoelectric element comprises:
A vibration plate having one longitudinal end fixed in one direction and vibrating in the other direction;
A piezoelectric sheet attached to at least a part of the vibrating plate in another direction; And
And a wavelength adjusting unit moving along one direction of the vibration plate and adjusting a length of a wavelength at which the vibration plate oscillates.
8. The method of claim 7,
The wavelength adjustment unit includes:
And a pressure support for moving along the one direction of the vibration plate and supporting the vibration plate so as to be linearly contact with the vibration plate in a direction perpendicular to the one direction so as to adjust a length of a wavelength at which the vibration plate oscillates A system for monitoring operation status of a plant using piezoelectric elements. delete delete

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