KR100946618B1 - Device For Processing Data For Electronic Hammer Of Concrete And Method Thereof - Google Patents

Abstract

The present invention relates to a data computing device and method for an electronic striking device of concrete, and more particularly, to collect the concrete striking data of the concrete using the electronic striking device according to the user's setting value, by using the The present invention relates to a data calculation device and method for an electronic striking device for concrete, which can calculate and display accurate transmission strength and calculate reliable hitting response and strength by calculating and displaying strength.

for teeth,

In the data computing device for calculating the strength of the concrete using an electronic striking device, the data computing device,

A blow control module for transmitting a blow condition to the electronic strike device and receiving the blow data measured as a result of the blow;

A pulse analysis module for calculating the strength of concrete using the hit data;

A setting module for receiving the hitting condition and an application formula from a user;

A DB module for storing data including the striking condition and the calculated strength;

A display module for displaying the calculated intensity to a user;

A central control module for controlling the hitting control module, pulse analysis module, setting module, DB module, and display module;

It provides a data calculation device for an electronic striking device of the concrete, characterized in that comprises a.

Concrete, electric striking device, impact response, strength calculation, hardness characteristics.

Description

Data Computing Device and Electronic Method for Electronic Strike of Concrete {Device For Processing Data For Electronic Hammer Of Concrete And Method Thereof}

The present invention relates to a data computing device and method for an electronic striking device for concrete nondestructive testing.

In general, the maintenance and reinforcement technology of the concrete structure has been developed a lot materially and methodically, the development of new technology is also steadily made.

However, the diagnosis technology that should precede the maintenance reinforcement technology is adopted by applying the conventional technology developed in the past, and the development of the technology focuses on the convenience of the output method rather than increasing the accuracy of data measurement. The situation is in line.

Currently, the non-destructive testing method for estimating the compressive strength of concrete has been widely used for measuring the surface repulsion by Schmidthammer, the ultrasonic test by the ultrasonic wave, and the combination method using both of them.

Among them, the measurement of surface development using the Schmidt hammer causes the hammer inside to hit the impact plunger by the compression of the spring, and estimates the compressive strength by measuring the rebound amount.

As such, the compressive strength of the existing concrete structures is measured by many non-destructive methods. The most representative method is the blow method using the blow energy obtained by hitting the concrete surface, among which hammers having a constant energy on the concrete surface. The rebound hardness method using the Schmidt rebound test hammer, which can estimate the compressive strength of concrete by measuring the resilience hardness after hitting with, has been widely used in various safety diagnosis.

However, the measurement of the compressive strength as described above has a problem that the measured value changes according to the angle of hitting, and there is a problem that the reliability of the data is deteriorated by such an error. For this purpose, an improved type of electric striking device (application number: 10- 2006-0081379).

By using the above device, it is possible to secure the reliability of data related to the measurement of non-destructive concrete compressive strength, and to realize the localization of equipment economically and conveniently at domestic safety diagnosis companies and institutional sites, but to process the collected data. Due to the absence of a device for the efficient processing of the measured data there was a problem that it is difficult to automatically calculate the strength of the concrete.

The present invention has been made in view of the above, and collect reliable data using an electronic striking device of concrete, and efficiently process the data to calculate the strength of concrete, etc. and transmit it to the display and other devices It is an object of the present invention to provide a data computing device and method for an electronic striking device of concrete.

In the data computing device for calculating the strength of the concrete using the above-mentioned electronic striking device, the data computing device,

A blow control module for transmitting a blow condition to the electronic strike device and receiving the blow data measured as a result of the blow;

A pulse analysis module for calculating the strength of concrete using the hit data;

A setting module for receiving the hitting condition and an application formula from a user;

A DB module for storing data including the striking condition and the calculated strength;

A display module for displaying the calculated intensity to a user;

A central control module for controlling the hitting control module, pulse analysis module, setting module, DB module, and display module;

Characterized in that comprises a.

In particular, the striking data is characterized in that the acceleration value over time of the striking hammer in the electronic striking device.

In addition, the pulse analysis module calculates the strength of the concrete by substituting the impact response amount to the application formula after calculating the impact response amount, the impact response amount R is

It is characterized by appearing as.

In addition, the data computing device,

And a communication module for transmitting data including the calculated strength to a peripheral device of the data associating device.

According to the data calculation device and the method for the electronic striking device of the present invention as described above, it is possible to ensure the reliability of the compressive strength measurement and the calculated strength data of non-destructive concrete, domestic safety diagnosis company through the localization of equipment And since it can be conveniently used economically in the field of the institution, considerable commercial and economic effects are expected.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. A singular expression includes a plural expression unless the context clearly indicates otherwise. In this application, the terms “comprises” or “having” are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described in the specification, and one or more other It is to be understood that the present invention does not exclude the possibility of the presence or the addition of features, numbers, steps, operations, components, parts, or a combination thereof.

Hereinafter, with reference to the accompanying drawings will be described the configuration of the present invention.

1 is a view showing that the data operation device 200, the electronic striking device 100, and the computer 300 according to the present invention are connected and operated, respectively.

The data operation device 200 is connected to the electronic striking device 100 and operates, and receives the striking condition by the user and transmits the input striking condition (strike setting value) to the electronic striking device 100, the striking Calculate the estimated strength of the concrete by receiving the result (hit data).

In addition, as a preferred embodiment, the data computing device 200 may transmit concrete strength data calculated by being connected to a peripheral device such as the computer 300 to the computer.

Hereinafter, the configuration of the data computing device 200 according to the present invention will be described in detail with reference to FIG. 2.

The data computing device 200 includes a central control module 210, a hit control module 220, a pulse analysis module 230, a setting module 240, a DB module 250, and a display module 260. As a preferred embodiment, the communication module 270 may be further included. Hereinafter, the role of each module will be described in detail.

The striking control module 220 transmits various kinds of striking conditions to the electronic striking device 100 by the command of the central control module 210. In this case, the various types of hitting conditions will be described in more detail in the following setting module 240. In addition, the impact result (hit data) of the electronic striking device 100 is received and transmitted to the central control module 210.

In a preferred embodiment, the striking control module 220 includes an analog-to-digital converter for converting the analog signal of the electronic striking device 100 into a digital signal, and a parsing module for separating the striking data by a predetermined unit. It can be configured.

The pulse analysis module 230 calculates the estimated strength of the concrete using the hit response amount R using the hit data, and using the calculated hit response amount R. The above process will be described in more detail with reference to FIGS. 3 to 6 below.

As shown in FIG. 7, the setting module 240 receives the impact condition 241 and the application formula 242 of the concrete by the user and transmits the received condition to the central control module 210.

At this time, the input hitting condition 241 may be configured to include the hitting position 241a, the unit 241b, the hitting angle 241c, whether the wet / dry (241d), the number of hits (241e) as a preferred embodiment have. Whether the wet / dry (241d) is a condition indicating the wet state of the concrete, the unit (241b) may be used units such as megapascal as the impact unit of the concrete.

The application formula 242 is a formula that can be input by the user, and is a series of equations in which the strength of concrete is an output value using the calculated hit response amount R as an input value. Since the application formula 242 used for calculating the concrete strength in each industrial site is different, the present invention allows a user to directly input the application formula 242.

As shown in FIG. 8, the DB module 250 includes the hitting condition 251, the application formula 252, the hitting data (measured by the hit, 253), the calculated hitting response amount (R, 254) and The database stores related data such as the estimated strength (255) of the concrete in the storage device.

 The display module 260 displays the hit response amount calculated by the pulse analysis module 230 and the estimated concrete strength on the screen so that the user can check it, and the user can also check the hit condition 241 and the application formula 242. Provides an interface for entering). In a preferred embodiment, the display module 260 includes an LCD panel.

The communication module 270 transmits the impact response amount R and the concrete estimated strength calculated by the pulse analysis module 230 to a peripheral device such as a computer. Can be transferred by the method.

In addition, the communication module may select an appropriate port and speed for communication, and transmit data including data bits, stop bits, and parity bits.

The central control module 210 controls the striking control module 220, the pulse analysis module 230, the setting module 240, the DB module 250, the display module 260, and the communication module 270. Allow the module to operate normally.

The process of calculating the concrete estimated strength using the data computing device 200 is as follows.

First, the user inputs the strike condition 241 and the application formula 242 through the display module 260 and the setting module 240. The input strike condition 241 and the application formula 242 are transmitted to the blow control module 220 and the pulse analysis module 230 through the central control module 210, respectively.

The hitting control module 220 performs concrete hitting through the electronic hitting device 100 using the input hitting condition 241, and transmits the resultant hitting data to the pulse analysis module 230.

The pulse analysis module 230 calculates the blow response amount R using the input blow data, and calculates the estimated strength of the concrete using the calculated blow response amount R and the application formula.

The calculated intensity may be displayed to the user through the display module 260 or transmitted to another device through the communication module 270.

The DB module 250 stores the data generated in the process, that is, the hitting conditions 241 and 251, the applied formulas 242 and 252, the hitting data 253, the hitting response amount 254 and the estimated intensity 255. The data is stored in the base, and the pulse information module 230 or the display module 260 searches for and delivers the requested information.

Hereinafter, a method of calculating the estimated response strength R and the estimated strength of the concrete using the hit data of the pulse analysis module 230 will be described with reference to FIGS. 3 to 6.

As shown in FIG. 3, the hitting hammer 31 collides with the concrete 33 at a constant speed V ₀ , and bounces at a constant speed V _r according to the hardness characteristic of the concrete 33.

At this time, the velocity and acceleration of the hammer hammer 31 is the same as the graph shown in FIG. 4 is a graph showing the speed of the hitting hammer 31 with time, and the lower graph is a graph showing the acceleration of the hitting hammer 31 with time.

In the upper velocity graph, the hammer hitting the concrete at a constant speed (V ₀ , 41) is bounced back at a constant speed (V _r , 42) by the reaction of the concrete.

In terms of acceleration, the hammer is increased with time and then receives an acceleration which decreases after a certain time. At this time, the maximum acceleration 43 received by the hammer is called maximum acceleration, and the acceleration starts. The time 44 taken from to end of time is referred to as pulse width.

5 shows the acceleration of the hitting hammer hitting the concrete of hard material, and the right side shows the acceleration of the hitting hammer hitting the soft material of concrete. As shown, in the case of a hard material, the maximum acceleration value is large and the pulse width is small, whereas in the soft material, the maximum acceleration value is small and the pulse width is large.

Therefore, when this characteristic is expressed by an equation, it is expressed as Equation 1 below.

In the above description, R is the stroke response amount, P _max is the maximum acceleration, w is the pulse width, and V ₀ is the initial velocity of the hammer.

On the other hand, if the behavior of the hammer hitting the concrete modeled, it can be assumed as a model of the object colliding with the fully elastic body as shown in FIG.

In FIG. 6, the impact speed of the hammer is V ₀ , the mass of the hammer is m, the displacement displacement of the concrete is x, and the elastic modulus of the concrete is k. The collision equation is as follows.

Therefore, the general solution for t = 0 and x = 0 is

를 나타낸다.Where x ₀ is the maximum displacement given to the concrete by the hammer, and w ₀ is the constant

Indicates.

Therefore, the maximum acceleration P _max and the initial velocity V ₀ of the hitting hammer are represented by Equation 4 below.

As a result, the hit response amount R is expressed as in Equation (5).

Through the results of Equation 5, it can be confirmed that the hitting response amount R is not affected by the hitting direction, which is different from correcting it because it has an influence on the hitting direction when measuring the strength of concrete using the conventional Schmidt hammer. There is.

That is, the pulse analysis module 230 calculates the impact response amount R using the maximum acceleration P _max and pulse width w of the electronic striking device, and the initial speed V ₀ of the striking device, and calculates the calculated R as a given application formula (242). ) To calculate the estimated strength of the concrete.

While the invention has been shown and described with respect to certain preferred embodiments, the invention is not limited to these embodiments, and those of ordinary skill in the art claim the invention as claimed in the appended claims. It includes all the various forms of embodiments that can be implemented without departing from the spirit.

1 is a view showing that the data operation device according to the present invention is operated in connection with an electronic striking device and a computer,

2 is a diagram showing the configuration of a data computing device according to the present invention;

3 is a view showing a process in which the impact hammer hit the concrete,

4 is a velocity and acceleration graph of the impact hammer,

5 is an acceleration graph of the hard material and the impact hammer (left) and an acceleration graph of the soft material and the impact hammer (right),

6 is a model modeled after assuming that the concrete is completely elastic,

7 is a view showing the configuration of a setting module according to the present invention;

8 is a view showing the configuration of a DB module according to the present invention.

<Description of Signs of Major Parts of Drawings>

100: electronic striking device 102: impact hammer

200: data computing device 300: computer

31: hitting device 33: concrete

41: Speed before crash 42: Speed after crash

43: maximum acceleration 44: pulse width

Claims (4)

In the data computing device for calculating the strength of the concrete using an electronic striking device, the data computing device, A blow control module for performing a concrete hit using an electronic hitting device using the input hitting condition, and transferring the resultant hitting data to a pulse analysis module; A pulse analysis module for calculating a hitting response amount R using the input hitting data and calculating an estimated strength of concrete using the calculated hitting response amount R and an applied formula; A setting module for receiving the hitting condition and an application formula from a user; A DB module for storing data including the striking condition and the calculated strength; A display module for displaying the calculated intensity to a user; A central control module for controlling the hitting control module, pulse analysis module, setting module, DB module, and display module; It is configured to include, The pulse analysis module calculates the strength of concrete by calculating the impact response amount and substituting the impact response amount into the application formula, and the impact response amount R is

Data calculation device for an electronic striking device of concrete, characterized in that appear as shown. In the above equation, R is the response amount Pmax is the maximum acceleration W is pulse width Vo represents the initial speed of the hammer. The method according to claim 1, The striking data is a data calculation device for an electronic striking device of the concrete, characterized in that the acceleration value according to the time of the hammer hammer in the electronic striking device. delete The method according to claim 1, The data computing device, And a communication module for transmitting data including the calculated strength to a peripheral device of the data associating device.

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