KR100406111B1 - A method and a device of measuring variety environment status for the engineering and construction site - Google Patents

Abstract

The present invention is to wirelessly measure the changes in the surrounding environment accompanying the civil construction work without errors, to the risk, safety management and disaster prevention of the construction, the sensor for detecting the environmental changes in the civil construction site and outputs a corresponding signal; A matching unit for matching and inputting an environmental signal applied from a sensor; A digital conversion unit converting the environmental signal applied from the matching unit into a digital signal and outputting the digital signal; A first wireless unit configured to wirelessly transmit and receive an environmental signal applied from the digital conversion unit at a frequency of the citizen band; A second wireless unit wirelessly receiving an environmental signal applied from a first wireless unit and wirelessly transmitting a corresponding control signal to the first wireless unit; A processing unit which receives an environmental signal applied from a second wireless unit, classifies it as an environmental signal of each corresponding sensor, and amplifies the environmental signal to a predetermined level; Records and saves the environmental signal applied from the processing unit, and if it is out of the set range by performing the corresponding processing, the value of the surrounding environment change occurring at the civil construction site by the operation storage unit which generates the corresponding alarm and allows the operator to check. Receives in real time without data errors, there is no problem of noise caused by long-term use, there is no need for a radio station license, there is a convenient effect that can be used to classify and process the data for each site.

Description

Environmental change measurement device and method for civil construction site {A METHOD AND A DEVICE OF MEASURING VARIETY ENVIRONMENT STATUS FOR THE ENGINEERING AND CONSTRUCTION SITE}

The present invention is to measure the changes in the surrounding environment accompanying civil construction or building construction to the risk, safety management and disaster prevention of construction, in particular, to measure the various environmental changes in a large area with the measuring instrument and the measured data The present invention relates to an apparatus and a method for transmitting wirelessly without error.

In the construction site where civil construction or building construction is carried out, it is necessary to dig or excavate construction, and in the case of the above construction, such as fluctuation and settlement of surrounding ground or geology, outflow of groundwater, cracking of nearby buildings, etc. Small changes in the environment or safety of nearby structures occur.

As described above, if left unforeseen in advance for a small change in the surrounding environment of civil engineering, it leads to a large accident that causes enormous property damage and casualties, so it is necessary to quickly detect the change in the surrounding environment caused by the construction work.

Hereinafter, a civil construction environmental change measurement apparatus according to the prior art will be described with reference to the accompanying drawings.

It is attached to describe the prior art, Figure 1 is a functional configuration diagram of the civil engineering environmental change measurement apparatus according to an example of the prior art.

Referring to FIG. 1, the civil construction environment change measuring apparatus according to an example of the prior art includes a plurality of sensors 10 that detect changes in the surrounding environment or geology and output the corresponding data;

MUX unit 30 for receiving the data output from the plurality of sensors 10, multiplexing and outputting;

A data storage unit 40 temporarily storing or logging data output from the mux unit 30;

A wired transmission line 20 for long-distance transmission of data output from the data storage unit 40;

It is composed of an operation processing unit 50 for processing the data transmitted through the wired transmission line 20 to predict the change in the surrounding environment of the civil construction site.

However, due to the nature of the civil construction site, the distance between the data storage unit 40 and the operation processing unit 50 for storing the data of environmental changes output from the respective sensors 10 is usually several kilometers or more,

Therefore, in the civil engineering construction site environmental change measurement device according to the prior art, the length of the cable transmission line 20 is several Km, the wire transmission line 20 is aged due to long-term use and noise (Noise) ), Or disconnection accidents occurred frequently due to the characteristics of the construction site, making it difficult to collect data, and it took a lot of time and money to maintain.

In addition, in the above conventional technology, since the signal of the environmental change detected by each sensor 10 is transmitted and processed in an analog state, the characteristics of the noise band signal due to transmission are bad, and the transmitted signal is distorted. ), And the accuracy of the detected signal processing is inferior.

The present invention converts the environmental change signal detected from each sensor of the civil construction site directly into a digital signal, and converts and transmits it to the frequency of the citizen band, thereby transmitting the detected environmental change signal without error and at the same time, even in a large construction site. And it is an object of the present invention to provide an environmental change measurement device and method that can continuously receive the accurate environmental change signal.

The present invention has been made in order to achieve the above object, the sensor for detecting the environmental change of the civil construction site and outputs a corresponding environmental signal; A matching unit configured to receive an environment signal applied from the sensor in a matching state; A digital conversion unit converting the environmental signal applied from the matching unit into a digital signal and outputting the digital signal; A first wireless unit receiving the environmental signal applied from the digital converter and outputting and transmitting / receiving at a frequency of a citizen band; A second wireless unit wirelessly receiving an environmental signal applied at a frequency of the citizen band from the first wireless unit and wirelessly transmitting a corresponding control signal to the first wireless unit; A processing unit which receives an environmental signal applied from the second wireless unit, corrects an error, and amplifies the signal to a predetermined level; Record and store the environmental signal applied from the processing unit in the database assigned to the sensor, if the processing is out of the set range, and generates a corresponding alarm, the operating storage unit consisting of the operation storage unit for the operator to check the environmental change site It features.

In addition, the present invention, the facility process for installing the corresponding measurement sensor to detect the environmental signal due to changes in the surrounding environment of the civil construction site; When the operation storage unit determines whether to detect the environmental signal using the measurement sensor installed in the facility process and transmits a control signal through the second wireless unit, the first wireless unit receiving the control signal detected the environmental signal from the sensor A measurement process of converting the signal into a digital signal and transmitting the signal wirelessly; A processing step of amplifying the environmental signal received by the second wireless unit in the measurement process to a predetermined level by the processing unit of the operation storage unit and classifying the environmental signal into environmental signals for each sensor by corresponding processing; Determining whether an environmental signal value classified for each sensor is within a corresponding setting range by the processing, and generating and recording an alarm signal when the environmental signal value is out of the corresponding setting range; The civil engineering construction site environment change measurement method comprising a storage process of returning the signal processed by the verification process to the corresponding database and determining whether to continue and returning to the measurement process and terminating if it is not continued. do.

1 is a functional configuration diagram of a civil construction environmental change measurement apparatus according to an example of the prior art,

2 is a functional configuration diagram of the environmental change measurement device of a civil construction site according to the present invention,

3 is a flowchart illustrating a method for measuring environmental changes in a civil construction site according to the present invention.

** Explanation of symbols on the main parts of the drawing **

10, 110: sensor 20: wired transmission line

30: mux 40: data storage

50: operation processing unit 120: matching unit

130: digital conversion unit 140: the first wireless unit

145: second wireless unit 150: processing unit

160: operation storage unit

Hereinafter, an apparatus and a method for measuring environmental changes in a civil construction site according to the present invention will be described with reference to the accompanying drawings.

Attached to explain the present invention, Figure 2 is a functional configuration diagram of the environmental change measurement device of the civil construction site according to the present invention, Figure 3 is a flow chart of the environmental change measurement method of the civil construction site according to the present invention.

Referring to FIG. 2, the civil construction site environment change measuring apparatus according to the present invention may include various kinds of groundwater level changes, cracks, settlements, slope changes, etc., due to the destruction or long-term use of the civil construction site. A sensor 110 for detecting an amount of environmental change or an amount of environmental displacement and outputting a corresponding signal, respectively;

A matching unit 120 for inputting a surrounding environment signal applied from the sensor 110 in a matching state;

An analog to digital converter (ADC) 130 for converting and outputting an ambient environmental signal applied as an analog signal from the matching unit 120 to a digital signal;

The first wireless unit wirelessly transmits and receives by receiving an environmental signal applied from the digital converter 130 and converting it into a frequency band of a citizen band, and converting the signal into a frequency signal of 424 MHz or 447 MHz, for example, and outputting the signal. 140),

A second wireless unit 145 for wirelessly receiving various environmental signals of a civil construction site applied from the first wireless unit 140 at a citizen band frequency and wirelessly transmitting a corresponding control signal to the first wireless unit; ,

A processing unit for receiving various environmental signals from the civil construction site applied from the second wireless unit 145 to classify the environmental signals into signals of the corresponding sensors, correcting error signals, and amplifying them to a predetermined level. 150,

Record and store the environmental signal of the civil construction site applied from the processing unit 150, and if the processing is out of a predetermined set range (Range), generates and records the corresponding alarm (Operator) to check It consists of the operation storage unit 160 to be.

In addition, the present invention with reference to the accompanying Figure 3, the environmental change measurement method of the civil construction site according to the present invention, a plurality of corresponding measurement sensors 110 to detect the corresponding signal due to the change of the surrounding environment of the civil construction site Facility process (S10) to install),

It is determined whether the environmental signal is detected using a plurality of corresponding measurement sensors 110 installed by the facility process (S10) (S20), and when detecting the environmental signal detected from each sensor 110 A measurement process of converting an analog ambient signal into a digital signal and transmitting the digital signal (S30);

Receiving a surrounding environment signal transmitted by the measurement process, amplifying the signal to a predetermined level, and classifying it into an environmental signal for each sensor 110 by a corresponding process (S40);

It is determined whether the environmental signal value classified for each sensor 110 by the process (S40) is a value within a predetermined corresponding setting range (S50), and when the value is out of the corresponding setting range, an alarm (Alarm) A confirmation process of generating and recording a signal (S60),

When the signal processed by the checking process is recorded and stored in the database D / B (S70), and it is determined whether to continue (S80), the signal is fed back to the measuring process S30 and does not continue. The case consists of a terminating storage process.

Hereinafter, a civil construction site environment change measuring apparatus and method thereof according to the present invention having the above configuration will be described in detail with reference to FIGS. 2 and 3.

In large-scale civil engineering works or construction sites, while digging and compacting, etc. for the foundation work, cutting, etc., changes in the surrounding environment occur during the basic work as described above.

Such a change in the surrounding environment may include, for example, a change in the groundwater level, settlement of the surrounding ground, or a change in geology. The change in the surrounding environment may be detected in advance, and necessary measures may be taken before the risk level is reached. Failure to do so will result in large-scale accidents, resulting in a number of property losses, deaths, and air delays.

In addition, even in an already constructed facility, destruction may occur due to fatigue due to long-term use or heavy load.

Therefore, in the above-mentioned civil engineering works, construction sites, or already constructed facilities, the environmental environment should be periodically monitored or measured to prevent accidents that may occur at any time in advance.

As a sensor 110 for monitoring changes in the surrounding environment of a civil construction site as described above, a load cell for detecting a change in load, an inclinometer or a tilt meter for detecting a change in slope, and a facility There are various types such as crack gauges for detecting the occurrence of cracks, water levels or piezometers for measuring changes in the level of groundwater, strain gauges for measuring deformation, and the like.

The various types of sensors 110 as described above are spaced at a predetermined place and appropriately installed or installed (S10).

As the sensor 110 installed as described above detects or measures, a signal for measuring environmental changes in the surroundings is input in a state of being matched by the matching unit 120.

The matching unit 120 may be connected to one sensor 110 or to a plurality of sensors 110 according to the current state of the civil construction site, each sensor if the sensor 110 is connected Matching (110) and at the same time (multiplexing) output the signal of each sensor (110), in the present invention will be described as one matching unit 120 is directly connected to one sensor (110) do.

Since the sensor 110 generally outputs the measured data as an analog signal, the signal output from the matching unit 120 is also an analog signal, and the digital conversion unit (ADC) 130. Is input to the digital signal, is applied to the first wireless unit 140, and is modulated to a frequency of the citizen band, for example, a frequency signal of 424 MHz or 447 MHz, and wirelessly output.

When the data measured by the sensor 110 is output as a digital signal, the matching unit 120 matches and inputs a digital signal, and the digital conversion unit 130 is used. You do not have to do.

The first wireless unit 140 outputs the signal when the control signal is received from the operation storage unit 160. That is, the operation storage unit 160 determines whether to start the measurement of the change in the surrounding environment of the civil construction site (S20), if you want to start the measurement to generate the corresponding control signal through the processing unit 150, The control signal generated by the processor 150 is transmitted to the first wireless unit 140 through the second wireless unit 145.

When receiving the control signal to start the measurement by the process (S20), the first wireless unit 140 wirelessly outputs or transmits the ambient environmental change signal of the detected civil construction site as the frequency signal of the citizen band ( S30), the transmitted ambient change signal is received by the second wireless unit 145.

The second wireless unit 145 outputs the received signal to the processing unit 150. The processing unit 150 amplifies to a predetermined level and corrects a transmission error occurring during transmission of the digital signal. In operation S40, the sensor 110 classifies a corresponding environmental signal by the sensor 110.

The classification of the signals by the sensors 110 as described above is because the corresponding environmental signals received from each of the plurality of sensors 110 should be classified, stored, and processed. The ID is transmitted along with the measured environmental signal.

Signals classified and output as environmental signals by the respective sensors 110 from the processing unit 150 are input by the operation storage unit 160 and recorded and stored in the database.

The operation storage unit 160 determines by processing whether or not the signal measured and input from the sensor 110 has a value of a predetermined predetermined range (S50) (S50).

If the determination result (S50), out of the predetermined value (Value) is a change in the surrounding environment of the civil construction site, that is, the load is increased by ground subsidence or displacement by the sensor 110 or It may be determined that there is a change in the surrounding environment, such as a slope change, fear of collapse, an increase in the groundwater level to a dangerous level, or a crack in the facility.

When the predetermined environmental change value measured at the civil construction site becomes a dangerous range value, the operation storage unit 160 generates an alarm signal in real time by its own processing. Thus (S60), the operator (operator) operating the operation storage unit 160, and at the same time, all the environmental change values and alarm signals generated along with the time (Time) recorded and stored in the database by the operator Enable cause analysis

If it is determined whether to continue the above process (S80), the process returns to the measurement process (S30), and if it does not continue, the process ends.

In addition, the operation storage unit 160 controls the first wireless unit 140 located at a plurality of sites, thereby the value of the environmental signal due to the change in the surrounding environment detected or measured by the sensor 110 at a specific site. ) Can be checked in real time.

In addition, when the first wireless unit 140 does not receive the real-time output control signal of the data measured as described above, which is output from the operation storage unit 160, it is set by a predetermined time unit. For example, when the set time is 12 hours or 24 hours, the measured environmental signal is automatically wirelessly outputted to the operation storage 160 through the second wireless unit 145 and the processing unit 150. .

Therefore, the civil construction site environment change measurement apparatus and method thereof according to the configuration of the present invention does not require MUX by wirelessly transmitting the measurement value of the environmental change data generated from the sensor 110 using the citizen band. It does not need to obtain a radio station license, and saves time for installing a data cable that is a wired transmission line.

In addition, the sensor 110 can be quickly installed, and data transmission errors due to long-term use do not occur, and operation costs by its own wireless unit are inexpensive, and data required from a plurality of sites is real time. There is an advantage that can be secured.

The present invention as described above is not limited to the above embodiments and drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It is obvious.

The present invention having the above-described configuration, by receiving the value of the change of the surrounding environment occurring in the civil construction site as a digital signal in real time, without data errors, there is an effect that can accurately analyze the environment of the civil construction site.

In addition, it is possible to quickly install the sensor at a low cost on site, easy to maintain, and there is an effect of ensuring reliability without the problem of noise caused by long-term use.

In addition, by using the frequency of the citizen band, there is an effect of reducing the cost of not having to obtain a radio station license and paying a radio wave usage fee.

In addition, even if the sensor is increased by a number of sites there is a convenient effect that can be used to classify and process the corresponding data for each site.

Claims (4)

A sensor that detects environmental changes in the civil construction site and outputs the corresponding environmental signals; A matching unit configured to receive an environment signal applied from the sensor in a matching state; A digital conversion unit converting the environmental signal applied from the matching unit into a digital signal and outputting the digital signal; A first wireless unit which receives an environmental signal applied from the digital conversion unit and outputs at a frequency of a citizen band to transmit and receive wirelessly; A second wireless unit wirelessly receiving an environmental signal applied at a frequency of the citizen band from the first wireless unit and wirelessly transmitting a corresponding control signal to the first wireless unit; A processing unit which receives an environmental signal applied from the second wireless unit, corrects an error, and amplifies it to a predetermined level; Civil construction site, characterized in that consisting of the operation storage unit for recording the environmental signal applied from the processing unit in the database assigned to the sensor and processing, if the processing is out of the set range, the operator generates a corresponding alarm to confirm Measurement device of environmental changes. The method of claim 1, The sensor, matching unit, digital conversion unit, the first wireless unit is integrally configured, the integrated sensor, matching unit, digital conversion unit, the first wireless unit, characterized in that at least one civil construction site environment change measurement device . The method according to claim 1 or 2, When the operation storage unit transmits a control signal through the processing unit and the second wireless unit, the first wireless unit receiving the control signal transmits the environmental signal detected by the sensor to the second wireless construction site environment Change instrumentation. Facility process for installing the corresponding measuring sensor to detect environmental signals caused by changes in the surrounding environment of the civil construction site; When the operation storage unit determines whether to detect the environmental signal using the measurement sensor installed in the facility process and transmits a control signal through the second wireless unit, the first wireless unit receiving the control signal detected the environmental signal from the sensor The measurement process of converting the signal into a digital signal and transmitting it wirelessly, A process of amplifying the environment signal received by the second wireless unit in the measurement process to a predetermined level by the processing unit of the operation storage unit and classifying the environment signal into environmental signals for each sensor by a corresponding process; Determining whether the environmental signal value classified for each sensor is within a corresponding setting range by the processing, and if it is out of the setting range, generating and recording an alarm signal; Civil engineering construction site environment, characterized in that consisting of the storage process is returned to the measurement process if the process continues to record and store the signal processed by the verification process in the database and continue if it does not continue How to measure change.