KR20060076848A - Automatic measuring system of vertically moving type using tilt sensor - Google Patents

Abstract

The present invention relates to a vertically movable automated measurement system using a high precision inclination sensor, and in particular, in an automatic measurement device, a drum unit wound around a signal cable and configured to wind and extract the signal cable; A high accuracy inclination sensor connected to the signal cable to measure an inclination displacement of a position to be measured; By controlling the high-precision inclination sensor and the drum unit to determine the inclination displacement amount from the high precision inclination sensor in a predetermined unit of time, and to filter the signal output from the high precision inclination sensor, the converted displacement amount data after A / D conversion A digital measuring unit which converts the signal into an RF signal and wirelessly transmits the converted RF signal; A wireless data logger which receives the RF signal wirelessly received from the digital measurement unit, demodulates the received RF signal, stores displacement data, modulates the displacement data, and transmits the wireless data through a CDMA network; And a measurement computer that analyzes the data collected in real time from the displacement data received from the wireless data logger via the CDMA network and propagates an alarm when the risk management threshold is exceeded.

According to the present invention as described above, by using one high-precision incline sensor and measuring while raising and lowering the high-precision incline sensor, the reliability of the measurement data can be improved, and the accuracy can be improved. There is no limit on the number of measurements, which is a disadvantage, and the measurement results are automatically transmitted to the measurement computer through the CDMA network in real time, enabling fast analysis and propagating immediate alarms according to the setting of the management standard value. As it can be obtained, it is possible to increase the efficiency in construction and safety management of the site, and by installing the mobile communication method, installation of the site is easy because there is no need to install the communication line when installing.

Automatic, instrumented, high accuracy tilt sensor, RF, CDMA, alarm

Description

Automatic Measuring System of Vertically Moving Type Using Tilt Sensor

1 is a schematic cross-sectional view showing a general manual tilt displacement measuring device,

2 is a schematic cross-sectional view showing a general automatic tilt displacement measurement device,

3 is a block diagram showing the configuration of a vertically movable automated measurement system using a high precision inclination sensor according to the present invention;

Figure 4 is a front view showing the configuration of the drum of the vertically movable automated measurement system using a high precision inclination sensor according to the present invention,

Figure 5 is a side view showing the configuration of the drum portion of the vertical movement automated measurement system using a high precision inclination sensor in accordance with the present invention.

<Explanation of symbols on main parts of the drawings>

101: measuring instrument 110: drum

111: signal cable 112: frame

113: step motor 114: cable drum

115: guide roller 116: encoder

120: high precision inclination sensor 130: digital measuring unit

131: first power supply circuit 132: filter circuit

133: A / D converter 134: wireless transmission module

135: first controller 140: wireless data logger

141: second power supply circuit 142: wireless receiving module

143: memory 144: second controller

145: first CDMA module 150: measurement computer

151: second CDMA module 152: data analysis unit

153: alarm generator

The present invention relates to an automated measuring device using a precision inclination sensor, and in detail, by using a single high precision inclination sensor and measuring while raising and lowering the high precision inclination sensor, high precision to improve the reliability of the measurement data to improve accuracy The present invention relates to a vertically movable automated measurement system using a tilt sensor.

In general, the precision measurement technology can be divided into manual measurement method using a precision measurement equipment to measure by manpower and automatic measurement method by connecting a number of low-cost inclination sensors.

First, the manual measurement method is measurement by manpower.

The automatic measurement method is described below with reference to FIG. 1.

1 is a schematic cross-sectional view showing a general manual tilt displacement measuring device.

As shown in Fig. 1, the cable 13 is pulled out of the cable drum 14, and the signal probe 13 marked with a depth of 0.5M in length is removed, and the measuring probe 11 with the inclination sensor at the end thereof is inclined in a plastic of 50 mm in width. Insert the roller wheel 10 into the groove in the pipe 12 and insert it by hand in 0.5M units and at the same time measure the tilt while pressing the instrument logger 15 with one hand. After the measurement is completed, return to the office to send data to the computer and run the inclinometer application to proceed with the measurement analysis.

The conventional measurement method, which is a little more improved than the conventional method, may include a method of measuring a plurality of inclination sensors made in the same shape as the conventional probe 11 into the inclinometer 12 by line by measurement depth.

In addition, a device for automatically measuring tilt displacement using a serial communication capable of 24-hour measurement management through an automatic measurement method (Patent Publication No. 1999-0080158) has been disclosed as shown in FIG. 2.

2 is a schematic cross-sectional view showing a general automatic tilt displacement measurement device.

Referring to FIG. 2, the inclination displacement automatic measurement device using serial communication converts the signal from the inclination sensor 23 and the inclination sensor 23 that output voltage or current according to the inclination displacement amount into digital, and converts the converted data. A sensor signal converter 20 for transmitting in a serial communication method, a sensor controller 25 for receiving and storing the converted measurement data in serial, and receiving and analyzing the measured data from the sensor controller 25 and informatizing the information. It consists of the main computer 27. In the drawings, reference numeral 12 denotes an inclinometer, 21 is a connecting rod, 22 is a spring plate, 24 is a serial sensor measurement line, 26 is a serial main communication line, and 28 is an inclination tube cover.

Referring to the operation of the automatic device for measuring the amount of inclination displacement using serial communication, when the inclination tube 12 embedded in the ground is inclined with the ground, there is a change in the output voltage of the inclination sensor 23 in the inclination system, and the signal Via the sensor signal conversion unit 20 in which the inclination sensor for converting to digital is built, the sensor control unit 25 arrives and is stored as a digital signal. The sensor control unit collects inclination displacement data of all sensors and transmits them to the main computer 27. Therefore, the main computer can analyze and informatize this measurement data.

However, in case of manual measurement method, it is impossible to analyze field measurement data quickly because it is measured by manpower, and it is difficult to quickly manage site measurement by measuring cycle once or twice a week, and it takes much time for field measurement. It is impossible to timely detect the displacement of the site during the holidays, and the error is large depending on the measurement person. In addition, since the measurement data cannot be analyzed quickly, there are significant problems in the construction and safety management of the site.

In addition, in case of automatic measurement method, it is expensive to install and many sensors must be connected, so it is difficult to monitor the safety of construction due to low reliability of data and frequent errors due to the use of low-cost low-precision sensors. . In addition, the automatic measurement is installed by inserting a plurality of inclination sensors in the inclination instrument, connected to the automatic measurement device to perform 24 hours measurement management, but the reliability of the data is significantly lower than the manual inclinometer.

The present invention is to solve the above problems, using a high precision inclination sensor, using a high precision inclination sensor to improve the accuracy of the measurement data to improve the accuracy by measuring while raising and lowering the high precision inclination sensor Its purpose is to provide a vertically movable automated measurement system.

In addition, the present invention does not limit the number of measurement, which is a disadvantage of manual measurement by operating unattended automatically, and the measurement result is automatically transmitted in real time through the CDMA network to the measurement computer, which enables rapid analysis and propagates the immediate alarm according to the setting of the management standard value. An object of the present invention is to provide a vertically movable automated measurement system using a high precision inclination sensor.

In addition, an object of the present invention is to provide a vertically movable automated measurement system using a high precision inclination sensor that can automatically obtain a highly accurate and reliable measurement data to improve the efficiency of construction and safety management in the field. .

In addition, an object of the present invention is to provide a vertically movable automated measurement system using a high-precision inclination sensor that does not require the installation of a communication line by installing the CDMA communication method to facilitate the site installation.

Features of the present invention for achieving the above object,

An automated measuring device, comprising: a drum portion wound with a signal cable and formed to wind and extract the signal cable; A high accuracy inclination sensor connected to the signal cable to measure an inclination displacement of a position to be measured; By controlling the high-precision inclination sensor and the drum unit to determine the inclination displacement amount from the high precision inclination sensor in a predetermined unit of time, and to filter the signal output from the high precision inclination sensor, the converted displacement amount data after A / D conversion A digital measuring unit which converts the signal into an RF signal and wirelessly transmits the converted RF signal; A wireless data logger which receives the RF signal wirelessly received from the digital measurement unit, demodulates the received RF signal, stores displacement data, modulates the displacement data, and transmits the wireless data through a CDMA network; And a measurement computer that analyzes the data collected in real time from the displacement data received from the wireless data logger via the CDMA network and propagates an alarm when the risk management threshold is exceeded.

Here, the drum unit and the frame; A step motor mounted to the frame and capable of forward and reverse rotation according to an external control signal; A cable drum wound around the signal cable and installed on the frame such that the signal cable is rotatable by a rotation shaft of the step motor; A guide roller for guiding the signal cable of the cable drum; And an encoder installed at the guide roller to detect and output the rotation speed of the guide roller.

Here, the digital measuring unit and the first power supply circuit for supplying power to each component; A filter circuit for removing a signal of a noise component from the inclination displacement signal output from the high precision inclination sensor; An A / D converter which outputs the gradient displacement signal filtered from the filter circuit as gradient displacement data for converting the gradient displacement signal into a digital signal; A wireless transmission module for wirelessly modulating tilt displacement data output from the A / D converter into an RF signal according to external control; And controlling the step motor and the high precision inclination sensor to measure the displacement amount in the high precision inclination sensor, and controlling the step motor through a signal output through the encoder to wind / extract the signal cable in a predetermined unit. And elevating the high precision inclination sensor, and controlling the wireless transmission module to control the inclination displacement data to be wirelessly transmitted.

Here, the digital measurement unit is installed in the cable drum to block the generation of noise or contact failure of the signal.

Here, the wireless data logger further comprises: a second power supply circuit for supplying power to each component; A wireless receiving module for demodulating the RF signal transmitted from the wireless transmitting module and outputting tilt displacement data, which is a digital signal; A memory for storing information necessary for various programs and systems, and storing gradient displacement data according to external control; A second controller configured to store tilt displacement data output from the wireless reception module in the memory and control the tilt displacement data stored in the memory to enable wireless transmission through a CDMA network; And a first CDMA module configured to modulate the tilt displacement data and wirelessly transmit the data via the CDMA network under the control of the second controller.

Here, the measurement computer includes: a second CDMA module for demodulating a signal transmitted from the first CDMA module to output gradient displacement data; A data analysis unit for collecting a signal output from the second CDMA module in real time and analyzing the collected data to output an alarm signal when the risk management standard value is exceeded; The alarm signal is issued by the alarm signal generated from the data generator, the alarm flasher, siren sound generation, SMS text message to the alarm generator to propagate the alarm message to the person in charge.

Hereinafter, with reference to the accompanying drawings, the configuration of the automated measurement system using a high precision inclination sensor according to the present invention will be described in detail.

Figure 3 is a block diagram showing the configuration of the vertically movable automated measurement system using a high precision inclination sensor according to the present invention, Figure 4 shows the configuration of the drum of the vertically moving automated measurement system using a high precision inclination sensor according to the present invention. 5 is a side view showing the configuration of a drum of a vertically movable automated measurement system using a high precision tilt sensor according to the present invention.

3 to 5, the vertical movement type automated measurement system 100 using the high precision tilt sensor according to the present invention includes a drum unit 110, a high precision tilt sensor 120, and a digital measurement unit 130. ), A wireless data logger 140 and a measurement computer 150.

First, as shown in FIGS. 4 and 5, the drum unit 110 includes a frame 112, a step motor 113, and a signal cable 111 wound around the drum unit 110 to wind and extract the signal cable 111. And a cable drum 114, a guide roller 115, and an encoder 116.

The frame 112 may be installed on the ground, and the step motor 113, the cable drum 114, and the guide roller 115 may be installed.

The step motor 113 is fixedly installed at one side of the frame 112 and rotated forward and backward in step units by a control signal output from the digital measuring unit 130 to be described below so that the signal cable is wound / extracted in a predetermined unit. do. In this case, the signal cable 111 is wound / extracted in units of 0.5M, so that the high-precision incline sensor 120 to be described below is raised and lowered in units of 0.5M, and the unit may be variable.

The cable drum 114 is installed on the frame 112 so that the signal cable 111 is wound and rotated by the rotation shaft 113 of the step motor 113. Here, the cable drum 114 has a space (not shown) for storing the digital measuring unit 130 therein, and a frame formed at a corresponding portion of the rotation shaft 113-1 of the step motor 113. It is fixed to the 1st rotating shaft 112-1 of 112. As shown in FIG.

The guide roller 115 is installed on the side of the cable drum 114 to guide the signal cable 111 of the cable drum 114, and is fixed by the second rotating shaft 112-2 formed on the frame 112.

The encoder 116 is installed in the guide roller 115 to detect and output the rotation speed of the guide roller 115. Here, the encoder 116 may be installed on the rotation shaft 113-1 of the step motor 113 in addition to the guide roller 115.

Then, the high precision inclination sensor 120 is connected to the end of the signal cable 111 is raised and lowered, and measures the amount of inclination displacement of the position to be measured.

In addition, the digital measurement unit 130 controls the high precision inclination sensor 120 and the drum 110 to measure the amount of inclination displacement from the high precision inclination sensor 120 on a predetermined time basis, and high precision inclination sensor 120 The first power supply circuit 131, the filter circuit 132, and the A / D converter 133 to filter the signal outputted from the first power filter, convert the converted displacement data after the A / D conversion into an RF signal, and wirelessly transmit the converted signal. ), A wireless transmission module 134, and a first controller 135.

The first power supply circuit 131 variably supplies commercial power to power required by each component.

The filter circuit 132 removes a signal of a noise component among the gradient displacement signal output from the high precision gradient sensor 120. Here, the filter circuit 132 may be a general RC filter, LC filter, low pass filter, high pass filter, band pass filter and the like.

The A / D converter 133 outputs gradient displacement data for varying the gradient displacement signal filtered from the filter circuit 132 into a digital signal.

The wireless transmission module 134 wirelessly modulates the inclination displacement data output from the A / D converter 133 into an RF signal under the control of the first controller 135 to be described below.

The first controller 135 controls the step motor 113 and the high precision inclination sensor 120 to control the amount of inclination displacement in the high precision inclination sensor 120, and through a signal output through the encoder 116. By controlling the step motor 113, the signal cable 111 is wound / extracted in a predetermined unit to raise and lower the high precision inclination sensor 120 in a predetermined unit, and the wireless transmission module 134 is controlled to incline the displacement data. Control to be transmitted.

Here, the digital measurement unit 130 is preferably installed in the space portion of the cable drum 114 to block the generation of noise or contact failure of the signal. If the digital measurement unit 130 is externally mounted, a slip ring device or the like may be added to generate a noise or a bad contact of a signal.

Meanwhile, the wireless data logger 140 receives the RF signal received from the wireless transmission module 134 of the digital measurement unit 130 and demodulates the RF signal, stores the displacement data, modulates the displacement data, and wirelessly modulates the displacement data. And a second power supply circuit 141, a wireless receiving module 142, a memory 143, a second controller 144, and a first CDMA module 145 to transmit.

The second power supply circuit 141 supplies power to each component. Here, the second power supply circuit 141 is preferably formed in the form of a battery, and can be charged through a commercial power source.

The radio receiving module 142 demodulates an RF signal transmitted from the radio transmission module 134 and outputs tilt displacement data, which is a digital signal.

The memory 143 stores information necessary for various programs and systems, and stores tilt displacement data under the control of the second controller 144, which will be described later. Here, the memory 143 also stores the identification number of the second CDMA module 151 of the measurement computer 150, that is, the mobile communication number.

The second controller 144 stores the tilt displacement data output from the wireless reception module 142 in the memory 143, and controls the tilt displacement data stored in the memory 143 to enable wireless transmission through the CDMA network. Meanwhile, the second controller 144 controls the tilt displacement data to be transmitted to the mobile communication number stored in the memory 143.

The first CDMA module 145 modulates the tilt displacement data under the control of the second controller 144 and transmits the data via the CDMA network.

In addition, the measurement computer 150 analyzes the data collected in real time from the displacement data received from the wireless data logger 140 via the CDMA network, and transmits an alarm when the risk management threshold value is exceeded. 151, a data analysis unit 152, and an alarm generation unit 153.

The second CDMA module 151 demodulates a signal transmitted from the first CDMA module 145 to output gradient displacement data.

The data analyzer 152 collects a signal output from the second CDMA module 151 in real time, and analyzes the collected data to output an alarm signal when the risk management reference value is exceeded. Here, the data analysis unit 152 is a measurement management program installed in the measurement computer 150.

The alarm generating unit 153 issues an alarm by the alarm signal generated from the data analyzing unit 152 and propagates the alarm message to the person in charge by blinking a monitor (not shown), generating a siren sound, or an SMS text message. Here, the alarm generator 153 stores the alarm message and the mobile communication number of the person in charge, and transmits the alarm message to the mobile communication number of the person via SMS through the second CDMA module 151.

Hereinafter, the operation of the vertical movement type automated measurement system using a high precision inclination sensor according to the present invention will be described in detail with reference to FIGS.

First, the measurement hole is drilled at the position to be measured, the inclination tube 101 is installed inside the measurement hole, and then the drum unit 110 is installed on the ground, and then the high precision inclination sensor 120 is inside the measurement tube 101. Insert. At this time, the high-precision inclination sensor 120 is positioned at a reference position inside the measurement instrument 101, and is offset by performing an offset (OFF-SET) of the step motor 113 or the like.

Then, power is supplied to each component through the first power supply circuit 131.

In this state, the first controller 135 of the digital measuring unit 130 controls the step motor 113 of the drum unit 110 so that the signal cable is drawn out from the cable drum 114 so that the high precision inclination sensor 120 is provided. Move it to that location.

The signal corresponding to the amount of inclination displacement sensed by the high precision inclination sensor 120 is input to the filter circuit 132 of the digital measuring unit 130, and the signal of the noise component is removed from the filter circuit 132 in a state of A /. It is input to the D converter 133.

Then, when the A / D converter 133 outputs gradient displacement data for converting the filtered gradient displacement signal from the filter circuit 132 into a digital signal, the first controller 135 controls the wireless transmission module 134. The tilt displacement data output from the A / D converter 133 is modulated into an RF signal to be wirelessly transmitted.

On the other hand, the RF signal transmitted from the wireless transmission module 134 is received by the wireless receiving module 142 of the wireless data logger 140 located in the near distance, the wireless receiving module 142 receiving the RF signal is RF The signal is demodulated to output gradient displacement data, which is a digital signal.

Then, the second controller 144 stores the gradient displacement data in the memory 143, controls the first CDMA module 145 to modulate the gradient displacement data stored in the memory 143, so that the modulated signal is used for the CDMA network. Enable wireless transmission over

On the other hand, this signal is received through the CDMA network to the second CDMA module 151 of the measurement computer 150 located at a remote location.

Then, when the second CDMA module 151 demodulates the signal transmitted from the first CDMA module 145 and outputs the inclination displacement data to the data analyzing unit 152, the data analyzing unit 152 performs the second CDMA module ( Collect the signal output from the 151 in real time.

Meanwhile, the first controller 135 of the digital measurement unit 130 moves the high precision tilt sensor 120 to another position in the same manner as described above when the measurement of the corresponding position is completed through the high precision tilt sensor 120. In the high-precision inclination sensor 120, the variable inclination of different positions is measured.

The data analysis unit 152 analyzes the collected data and outputs an alarm signal when the risk management standard value is exceeded. At this time, the data analysis unit 152 collects the inclination displacement amount in real time for 24 hours.

When the alarm signal is output from the data analyzer 152, the alarm generator 153 propagates the alarm message to the person in charge by flashing the monitor, generating the siren sound, and an SMS text message.

Therefore, accurate measurement data can be obtained by measuring the variable amount of inclination while moving one high precision inclination sensor, and collects the variable amount of inclination in real time remotely through the CDMA network and generates an immediate alarm when the management standard value is exceeded. Ensure quick response.

According to the vertical moving type automated measurement system using the high precision inclination sensor of the present invention configured as described above, by using one high precision inclination sensor and measuring while raising and lowering the high precision inclination sensor, the accuracy of the measurement data is improved and the accuracy is improved. In addition, there is no limit on the number of measurement, which is a disadvantage of manual measurement because it is operated unattended automatically, and the measurement result is automatically transmitted to the measurement computer through CDMA network in real time for quick analysis and prompt alarm propagation according to management standard value setting. It is possible to obtain high-precision and reliable measurement data automatically, so it is possible to increase the efficiency in construction and safety management of the site. Do.

Claims (6)

In the automated measurement system, A drum portion wound around the signal cable, the drum portion configured to wind and extract the signal cable; A high accuracy inclination sensor connected to the signal cable to measure an inclination displacement of a position to be measured; By controlling the high-precision inclination sensor and the drum unit to determine the inclination displacement amount from the high precision inclination sensor in a predetermined unit of time, and to filter the signal output from the high precision inclination sensor, the converted displacement amount data after A / D conversion A digital measuring unit which converts the signal into an RF signal and wirelessly transmits the converted RF signal; A wireless data logger which receives the RF signal wirelessly received from the digital measurement unit, demodulates the received RF signal, stores displacement data, modulates the displacement data, and transmits the wireless data through a CDMA network; And Using a high-precision inclination sensor characterized in that it comprises a measurement computer for analyzing the data collected in real time from the displacement data received from the wireless data logger through the CDMA network, and propagates an alarm when the risk management threshold is exceeded Vertically movable automated measurement system. The method of claim 1, The drum unit, A frame; A step motor mounted to the frame and capable of forward and reverse rotation according to an external control signal; A cable drum wound around the signal cable and installed on the frame such that the signal cable is rotatable by a rotation shaft of the step motor; A guide roller for guiding the signal cable of the cable drum; And The vertical movement type automatic measurement system using the high precision inclination sensor, characterized in that it comprises an encoder installed on the guide roller to detect the output rotation speed of the guide roller. The method of claim 2, The digital measuring unit, A first power supply circuit for supplying power to each component; A filter circuit for removing a signal of a noise component from the inclination displacement signal output from the high precision inclination sensor; An A / D converter which outputs the gradient displacement signal filtered from the filter circuit as gradient displacement data for converting the gradient displacement signal into a digital signal; A wireless transmission module for wirelessly modulating tilt displacement data output from the A / D converter into an RF signal according to external control; And By controlling the step motor and the high-precision inclination sensor to control the displacement amount measured in the high-precision inclination sensor, and by controlling the step motor through a signal output through the encoder by winding / extracting the signal cable in a predetermined unit And a first controller for lifting and lowering the high precision tilt sensor and controlling the wireless transmission module to wirelessly transmit tilt displacement data. The method of claim 3, wherein The digital measuring unit, Vertical movement type automated measurement system using a high precision inclination sensor, characterized in that installed in the cable drum to block the generation of signal noise or contact failure. The method of claim 3, wherein The wireless data logger, A second power supply circuit for supplying power to each component; A wireless receiving module for demodulating the RF signal transmitted from the wireless transmitting module and outputting tilt displacement data, which is a digital signal; A memory for storing information necessary for various programs and systems, and storing gradient displacement data according to external control; A second controller configured to store tilt displacement data output from the wireless reception module in the memory and control the tilt displacement data stored in the memory to enable wireless transmission through a CDMA network; And And a first CDMA module configured to modulate the inclination displacement data and wirelessly transmit the data through the CDMA network according to the control of the second controller. The method of claim 5, The measurement computer, A second CDMA module for demodulating a signal transmitted from the first CDMA module to output gradient displacement data; A data analysis unit for collecting a signal output from the second CDMA module in real time and analyzing the collected data to output an alarm signal when the risk management standard value is exceeded; Vertical movement type automatic measurement using high precision inclination sensor including alarm generating unit for issuing an alarm by the alarm signal generated from the data generating unit and propagating the alarm message to the person in charge by flashing the monitor, siren sound, and SMS text message system.

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