KR101720556B1 - Apparatus for determining collapse of surface - Google Patents

Apparatus for determining collapse of surface Download PDF

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Publication number
KR101720556B1
KR101720556B1 KR1020150067460A KR20150067460A KR101720556B1 KR 101720556 B1 KR101720556 B1 KR 101720556B1 KR 1020150067460 A KR1020150067460 A KR 1020150067460A KR 20150067460 A KR20150067460 A KR 20150067460A KR 101720556 B1 KR101720556 B1 KR 101720556B1
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South Korea
Prior art keywords
distance
collapse
unit
humidity
environment data
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KR1020150067460A
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Korean (ko)
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KR20160134998A (en
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이선복
김용대
양원우
한재혁
신동진
우창완
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(주) 임베디드 솔루션
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    • G01S17/023—
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/50—Systems of measurement, based on relative movement of the target
    • G01S15/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S15/62—Sense-of-movement determination
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/497—Means for monitoring or calibrating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52004—Means for monitoring or calibrating
    • G01S7/52006—Means for monitoring or calibrating with provision for compensating the effects of temperature

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)

Abstract

The surface collapse detection system according to an embodiment of the present invention includes a front end range locating device and a rear end distance locating device, and the front end and rear end distance locating device includes a temperature sensing part, a humidity sensing part, an operation control part, first and second ultrasonic transmission parts, Wherein the operation control unit of the front end distance measuring unit receives the cumulative environment data from the front end distance measuring unit and transmits the temperature and humidity information to the first and second ultrasonic receiving units, The current temperature and humidity are determined using the temperature sensing signal and the humidity sensing signal of the sensing unit to generate the current environment data, the new environment data is generated by adding the current environment data to the received cumulative environment data, And the operation control unit of the trailing edge distance measuring apparatus transmits the accumulated cumulative environment data to the first or second ultrasonic receiving unit, The reception time of the ultrasound signal and the reception time of the ultrasound signal are determined based on the reception time of the infrared signal and the reception time of the ultrasound signal, Lt; / RTI >

Description

[0001] APPARATUS FOR DETERMINING COLLAPSE OF SURFACE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distance-based geodetic system, a surface collapse detection system, and a control method thereof.

When mountains are inevitably cleared for road construction, sloping lands will occur on both sides of the road.

At this time, reinforcement work is performed for safety. Even if reinforcement work is performed, there is a risk of collapse due to rainwater or soil leaking.

In addition, even if the slope area, which is not a flat area, is developed to construct a building like a residence, a slope is generated, which causes a slope and a risk of a landslide. In addition, have.

Conventional methods for detecting the collapse of a surface such as a slope or a flat surface such as a ground, a road, or a building roof include a method in which an optical cable is buried in a corresponding area and a change in the refractive index of light passing through the optical cable The changes in moisture content affecting landslides and collapsing phenomena were measured using a water content meter, and it was judged to be a dangerous state when it was above the set value.

In addition, a system has been developed in which an impact detection unit or an angle sensing unit is installed in a corresponding area to detect an angle change with respect to a surface of the area to detect collapse.

However, the method using the optical cable or the moisture content measuring device can not be installed in the entire desired area, so that the dangerous area where the collapse phenomenon may occur can not be accurately detected or judged, and a separate optical cable or water content measuring device Installation costs were increased because civil works were required.

In addition, in the case of a system for detecting the change in the angle of the area, it is only possible to detect whether or not the change of the indicator has occurred, but it is impossible to determine the change of the indicator and thus the accurate collapse risk can not be detected.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to improve the accuracy of the distance measurement operation between two adjacent devices.

Another object of the present invention is to improve the accuracy of detection of surface collapse.

The distance measuring apparatus according to one aspect of the present invention includes an operation controlling unit, an ultrasonic transmitting unit connected to the operation controlling unit and transmitting an ultrasonic signal to a rear end distance measuring unit located at a rear side of the distance measuring unit, An ultrasound receiver for receiving an ultrasound signal transmitted from a front end distance measuring unit located at a front side of the distance measuring unit, an infrared transmitting unit connected to the operation controlling unit for transmitting an infrared signal, The operation control unit determines the reception time of the infrared signal received through the infrared receiver and the reception time of the ultrasonic signal received through the ultrasonic receiver, , Reception of the infrared signal The distance between the ultrasound signal and the ultrasound signal is calculated using the difference between the transmission time of the ultrasound signal and the reception time of the ultrasound signal.

The distance measuring apparatus according to the above feature may further include a temperature sensing unit connected to the operation control unit and sensing a temperature and outputting a temperature sensing signal corresponding to the sensed temperature, And a humidity sensor for outputting a humidity sensing signal corresponding to the sensed humidity, wherein the operation controller determines the current temperature and the current humidity using the temperature sensing signal and the humidity sensing signal of the temperature sensing unit and the humidity sensing unit A front end distance measured by the front end distance measuring unit, an average temperature with respect to the current temperature, a front end temperature measured by the front end distance measuring unit, and an average humidity with respect to the current humidity, It is preferable to correct the calculated distance.

According to another aspect of the present invention, there is provided a surface collapse detection system including a front end distance geographical device and a rear end distance geographical device positioned adjacent to the front end distance geographical device in a first direction or a second direction, The rear end range locating device includes a temperature sensing unit sensing a temperature and outputting a temperature sensing signal corresponding to the sensed temperature, a humidity sensing unit sensing a humidity and outputting a humidity sensing signal corresponding to the sensed humidity, An operation control unit connected to the temperature sensing unit and the humidity sensing unit, first and second ultrasonic transmission units connected to the operation control unit and configured to transmit ultrasonic signals in the first direction and the second direction, And first and second ultrasonic receivers respectively receiving ultrasonic signals received from the first direction and the second direction, First and second infrared transmission units connected to the operation control unit and respectively transmitting infrared signals in the first direction and the second direction and a second infrared transmission unit connected to the operation control unit, Wherein the operation control unit of the front end range finder includes a first temperature sensor and a second temperature sensor which receive the cumulative environmental data from the front end distance measuring unit, The current temperature and the current humidity are determined using the temperature sensing signal and the humidity sensing signal of the sensing unit to generate the current environment data, the new accumulated environmental data is added to the received current environmental data, And transmits the cumulative environment data generated by the distance-based geographical distance measuring device, And the reception time of the infrared signal received through the first or second infrared receiver is determined based on the reception time of the ultrasound signal received through the first or second ultrasound receiver and the reception time of the infrared signal received through the first or second infrared receiver, The distance between the ultrasonic signal and the ultrasonic signal is calculated using the difference between the ultrasonic signal transmission time and the ultrasonic signal reception time.

Wherein the operation control unit of the trailing edge distance measuring unit calculates an average temperature for the current temperature measured by the trailing edge distance measuring unit and the cumulative environmental data transmitted from the front end distance measuring unit, And the average humidity for the current humidity measured by the rear-end distance measuring device may be used to correct the calculated distance.

The surface collapse detection system according to the above feature may further include a collapse determination device for respectively communicating with the front end distance geographical distance device and the rear end distance geographical device, Lt; / RTI >

The trailing edge locating device transmits the calculated distance to the collapse determining device, compares the distance transmitted from the trailing edge locating device with a reference distance, calculates a distance difference value and a distance change ratio with respect to the reference distance , The distance variation direction of the calculated distance variation ratio is different from the distance variation direction of the other interval or the distance variation direction of the distance variation ratio is the same as the distance variation direction of the other interval, It is preferable to determine a section between the front-end distance and the rear-end distance geographical apparatus as a collapse section.

Wherein the collapse determination apparatus measures an elapsed time after transmitting the measurement start signal to the front end distance geographical apparatus and, when the elapsed time reaches a preset time, if the cumulative environment data is not transmitted from the rear end distance geographical apparatus within the set time, If the rear end distance measuring device is a distance measuring device located in the uppermost row or the leftmost column, the measurement start signal may be output to the distance measuring device located at the rear end of the trailing distance measuring device.

According to another aspect of the present invention, there is provided a control method for a surface collapse detection system, comprising the steps of: determining whether a measurement start signal or cumulative environment data has been transmitted from a collision determination device or a front end distance measurement device; When the environmental data is transmitted, the distance and distance measuring apparatus determines the current temperature and the current humidity using the temperature sensing unit and the humidity sensing unit, adds the current temperature and the current humidity to the cumulative environment data transmitted from the front- And the distance measurement unit determines the reception time of the infrared signal and the ultrasonic signal transmitted from the front end distance geographical apparatus and transmits the infrared signal and the ultrasonic signal The time difference between the reception time And a step of calculating the distance to the AF device.

The method for controlling a surface collapse detection system according to the above feature is characterized in that the distance-based geodesic device transmits the distance to the collapse determination device, the collision determination device compares the distance transmitted with a reference distance, Wherein the collapse determination apparatus determines whether the distance change direction of the distance change ratio is different from the distance change direction of the other section, and the collapse determination apparatus determines the distance change ratio of the distance change ratio And determining a corresponding section, which is a section between the distance-side instrument and the front-end distance-side apparatus, to be a collapse section when the direction of change is different from the direction of the distance change of the other section.

The method for controlling a surface collapse detection system according to the above feature is characterized in that if the distance change direction of the distance change ratio does not differ from the distance change direction of another interval, Determining whether the distance change rate of the corresponding interval differs from the distance change ratio of the other interval, and determining the corresponding interval as a collapse interval .

The method for controlling a surface collapse detection system according to the above feature may further include the steps of measuring an elapsed time after the collision determination apparatus transmits the measurement start signal to the distance position measuring apparatus, Determining whether cumulative environment data is transmitted from the distance geographical apparatus within the set time, and when the cumulative environment data is not transmitted from the distance geographical apparatus within the set time, the collapse determination apparatus determines that the distance geographical apparatus Or the distance-side geographical apparatus located in the leftmost column, and if the distance-side geographical apparatus is a distance-side geographical apparatus located in the uppermost row or the leftmost column, the collision- A step of outputting a measurement start signal Can.

According to this feature, the distance between two adjacent distance-based positioning devices is determined by using the infrared signal and the ultrasonic signal, and it is determined whether or not the interval between the two distance-based positioning devices is collapsed by using the distance variation.

Therefore, since the infrared signal and the ultrasonic signal can be transmitted only in one direction, the transmission distance of the infrared signal and the ultrasonic signal for the distance measurement operation is shortened, and the influence of the temperature and humidity is reduced. Therefore, So that accurate positioning operation is performed.

Further, when the correction operation of the measurement distance using the temperature and the humidity is performed, since the average value of the temperature and the humidity measured respectively by the two adjacent distance range locating devices is used, the accuracy of the correction operation is increased, The accuracy of the distance is further improved, so that the accuracy of the section collapse determination operation also increases.

1 is a block diagram of a surface decay detection system in accordance with an embodiment of the present invention.
FIG. 2A is a schematic block diagram of a base unit of the surface decay detection system shown in FIG. 1. FIG.
FIG. 2B is a schematic block diagram of the collapse determination apparatus of the surface collapse detection system shown in FIG. 1. FIG.
3 is a diagram showing a signal transmission / reception relationship between a collapse determination apparatus of the surface collapse detection system shown in FIG. 1 and a plurality of base units installed in an installation area.
4 is a data flow diagram between a collapse determination apparatus and a grounding apparatus in a surface collapse detection system according to an embodiment of the present invention.
5 is an operational flowchart of a collapse determination apparatus for determining a collapse state in a surface collapse detection system according to an embodiment of the present invention.
6 is a flowchart showing the operation of the collapse determination apparatus in the surface collapse detection system according to the embodiment of the present invention, and shows the operation of the collapse determination apparatus for transmitting the measurement start signal to the range apparatus.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

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

Hereinafter, a distance measuring apparatus, a surface decay detection system, and a control method thereof according to an embodiment of the present invention will be described with reference to the accompanying drawings.

First, a surface decay detection system according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3. FIG.

The surface collapse detection system according to an embodiment of the present invention shown in FIG. 1 includes a surface collapse detection system (hereinafter, referred to as a " collision ") 10 which communicates with a plurality of distance- A judging device 20, and a control device 30 communicating with the collapse determination device 20. [

Each of the plurality of the base stations 10 is arranged in a matrix structure at a predetermined interval in a detection area for detecting the collapse and each of the base units 10 communicates with the collapse determination device 20, . At this time, the distances between the adjacent two radar apparatuses 10 may be the same or at least one.

At this time, since the data and the signals are transmitted and received between the two rowing devices 10 adjacent to each other in the row direction as the first direction and in the column direction as the second direction different from the first direction, The two base stations 10 are spaced apart from each other by a distance that allows them to communicate with each other.

Each of the plurality of base units 10 has the same structure.

2, each of the base units 10 includes a temperature sensing unit 11, a humidity sensing unit 12, a temperature sensing unit 11, an operation control unit 13 connected to the humidity sensing unit 12, A storage unit 14 connected to the operation control unit 13, a radio frequency (RF) signal communication unit 15 (hereinafter referred to as RF communication unit) connected to the operation control unit 13, The first and second ultrasonic wave transmission units 161 and 171 and the first and second ultrasonic wave reception units 162 and 172 and the operation control unit 13 connected to the operation control unit 13 and transmitting and receiving the ultrasonic signals, And first and second infrared ray transmitting units 181 and 191, first and second infrared ray receiving units 182 and 192, and a power source unit 19 for transmitting and receiving infrared rays, respectively.

 The temperature sensing unit 11 senses the ambient temperature and outputs a temperature sensing signal corresponding to the sensed temperature to the operation control unit 13. [

The humidity sensing unit 12 senses the ambient humidity and outputs a humidity sensing signal corresponding to the sensed humidity to the operation control unit 13.

The operation control unit 13 controls the operation of the temperature sensing unit 11 and the humidity sensing unit 12 using the temperature sensing signal and the humidity sensing signal input from the temperature sensing unit 11 and the humidity sensing unit 12, (I.e., current temperature) and humidity (i.e., current humidity).

Then, the operation control unit 13 adds the current temperature and the current humidity determined by the operation unit 13 to the cumulative environment data transmitted from the front-end side station apparatus, which is the near-field apparatus 10 immediately before in the row or column direction, The cumulative environment data generated after the environment data is generated is transmitted via the RF communication unit 15 to the rear stage side apparatus and the collision determination apparatus 20 which are adjacent to each other in the row or column direction .

The operation control unit 13 controls the reception interval of the ultrasound signal transmitted through the first or second ultrasound receiver 162 or 172 and the infrared signal transmitted through the first or second infrared receiver 182 or 192, (Hereinafter referred to as " distance between the near-field apparatuses ") adjacent to each other in the row direction or the column direction using a reception time difference, which is a difference in reception time between the ultrasonic signal and the infrared signal, .

Generally, since the speed of the infrared signal is much faster than the speed of the ultrasonic signal, when the ultrasonic signal and the infrared signal are simultaneously transmitted, the receiving time of the infrared signal is much faster than that of the ultrasonic signal.

Therefore, in this example, instead of using the time that is received after emitting one signal such as an ultrasonic signal or an infrared signal, the reception time of the infrared signal is set as the reference time (i.e., the transmission time of the ultrasonic signal) , The transmission time of the ultrasonic signal) and the reception time of the ultrasonic signal.

At this time, the operation control unit 13 sets the temperature (hereinafter, referred to as "the front end temperature") and the humidity (hereinafter referred to as the "front end temperature") measured by the front end range measuring apparatus 10, And the distance calculated using the average temperature and the average humidity with respect to the current temperature and the current humidity measured by the own (that is, the operation control unit of the rear end side proximity device adjacent to the front end).

Therefore, the operation control unit 13 determines the distance between the corrected front-end side-range device and the rear-end side-range device as the final distance between the front-end side-range device and the rear- ).

The transmission of the final distance between the radar apparatuses transmitted to the collapse determination apparatus 20 is performed through the RF communication unit 15. [

The storage unit 14 stores data, information, and the like that are necessary for the operation of the base unit 10 and are generated during operation.

Therefore, the storage unit 14 stores data such as the current temperature measured by the base unit 10, the current humidity, a temperature required for correcting the distance between the base units, and a distance correction amount according to the humidity.

As described above, the RF communication unit 15 transmits the measured final distance and the cumulative environment data to the collapse determination apparatus 20 using the RF signal.

The first and second ultrasonic transmitters 161 and 171 transmit the ultrasonic signals to the rear stage locators 10 adjacent to each other in the different directions (that is, the backward (row direction) or the downward (column direction)).

The first and second ultrasonic receivers 162 and 172 respectively receive the ultrasonic signals transmitted from the front-end range finder 10 adjacent in the front (row direction) or upward (column direction).

The first and second infrared ray transmitters 181 and 191 respectively transmit infrared signals to the rear stage side apparatus 10 and the first and second infrared ray receiving units 182 and 192 transmit Respectively.

As shown in FIG. 3, since the plurality of base units 10 are arranged in a matrix structure, transmission signals such as an RF signal, an ultrasound signal, and an infrared signal are transmitted from left to right and from top to bottom.

In the example shown in Fig. 3, in the plurality of base units, four base units are arranged in the row direction, four base units are arranged in the column direction, and all 16 base units 101-1016 are arranged have. In FIG. 3, the intervals (I 1 -Ip) between the adjacent two side-by-side apparatuses are all 24 (I 1 -I 24 ).

Therefore, in the case of FIG. 3, each of the base transceiver stations 101-1016 transmits the corresponding transmission signal in two directions, i.e., the right direction and the downward direction. For example, The third positioner 103 and the sixth positioner 106 become the rear end locator of the second locomotion device 102. [

Of course, the second locating device 102 serves as a rear end locating device of the first locating device 101, and serves as a front end locating device of the third and sixth locating devices 103,

The first stage device 101 is a front stage side device and the rear stage side device corresponding to the first side device 101 is the second and fifth side devices 102 and 105, respectively.

The collapse determination apparatus 20 transmits a measurement start signal to at least one of the base stations 10. When the operation is started, the collapse determination apparatus 20 determines whether the collision determination apparatus 20 is in the first row and the first column, (E.g., 105-109) arranged in the leftmost column, which is the first column, and a base station (e.g., 102-104) located in the top row, which is the first row, A measurement start signal may be additionally transmitted to at least one of them.

In this example, the collapse determination apparatus 20 is adjacent to the last stage apparatus 1016 to shorten the communication distance between the last row and the last column (hereinafter, referred to as 'last row apparatus') (for example, 1016) .

This is to reduce the data loss rate of the cumulative environment data at the time of transmission to the collapse determination apparatus 20 because the size of the cumulative environment data generated by the last geographical apparatus 1016 is the largest among the plurality of the geographical apparatuses 101-1016.

Next, as shown in FIG. 2B, the collapse determination apparatus 20 includes an RF communication unit 21 for RF communication with each of the base stations 10, a collapse determination unit 22 connected to the RF communication unit 21, A timer 24 connected to the decay determining unit 22, a warning unit 25 connected to the decay determining unit 22, a decay determining unit 22, An Internet communication unit 26 connected to the Internet 22, and a power supply unit 27.

The RF communication unit 21 has the same structure as the communication unit 21 of each of the base units 10 and performs the same function.

The collapse determination section 22 transmits a measurement start signal to the corresponding base station 10 using the RF communication section 21 so that the operation of the base station 10 can be started, (I 1 -I 24 ) is a section in which the collapse occurs (that is, a collapsing section) using the distance change ratio between the final distance between the near-field devices and the reference distance stored in the storage section 23 and the final distance to the reference distance .

The collapse determination unit 22 determines the current temperature and the current humidity measured by each of the base units 10 using the cumulative environmental data transmitted from the respective base units 10, .

The storage unit 23 stores data necessary for operation of the collapse determination apparatus 20, data required during operation, and collapse for each section (I 1 -I 24 ) in the same manner as the storage unit 14 of the positioner 10 And a memory for storing the result of the determination as to whether or not the memory card is accessible.

Therefore, the storage unit 23 stores a reference distance, which is a distance when the section I 1 -I 24 between adjacent two terrestrial stations is in a normal state before the collapse, and a setting value for determining whether or not the collapse occurs .

The timer 24 counts the elapsed time after the measurement start time is transmitted from the collapse determination section 22 to the geodetic apparatus 10 and outputs the counted time to the collapse determination section 22. [

Therefore, the collapse determination section 22 determines whether or not data is normally received from the corresponding radar apparatus 10 among the plurality of radar apparatuses 10 within the set time according to the elapsed time, and outputs the abnormal radar apparatus And outputs a measurement start signal to the abnormal position measuring device according to the position of the abnormal position measuring device.

The warning unit 25 is composed of a light emitting diode (LED) or the like operated by the collapse determination unit 22 and determines whether collision of each section I 1 -I 24 among the plurality of sections I 1 -I 24 And the location of the collapse section.

The Internet communication unit 26 is a communication unit that performs communication with the control device 30, and may be a communication unit using a method other than the Internet.

1, the control device 30 includes a communication unit 31, an operation control unit 32 connected to the communication unit 31, a data output unit 33 connected to the operation control unit 32, and an operation control unit 32 And a status display unit 34 connected to the display unit.

The communication unit 31 is a communication module that performs wired or wireless communication with the Internet communication unit 26 of the collapse determination apparatus 20, and may be an Internet communication unit.

The operation control unit 32 outputs the data transmitted through the communication unit 31 to the data output unit 33 and outputs a warning signal to the status display unit 34 when it is determined that the collapsing period has occurred through the transmitted data The status display section 34 is operated.

The data output unit 33 outputs the data output under the control of the operation control unit 32 and outputs the current temperature sensed by each of the base units 10, the current humidity, the collapse interval, and the collapse amount.

The data output unit 33 may be a liquid crystal display (LCD), an organic light emitting display (OLED), or the like.

The status display unit 34 may be composed of a light emitting diode or a buzzer and may be operated by the operation control unit 32 to notify the manager of the occurrence of the collapse section and promptly recognize the occurrence status of the collapse section, So that it can be done quickly.

Next, the operation of the surface collapse detection system will be described with reference to FIG.

In this example, the operation of each of the radar apparatuses is the same except that the cumulative environment data transmitted from the front-end radar apparatus and the cumulative environment data transmitted to the rear-end radar apparatus are different from each other.

4, when the base stations 101-1016 are arranged in a 4.times.4 matrix structure as shown in FIG. 3, the collision determination apparatus 20 receives the measurement start signal for the first time every routine of the operation The first and second radar apparatuses 101 and 102 and the second radar apparatus 102 which are respectively located on the right and below the first radar apparatus 101 and communicate with the first radar apparatus 101 and the RF signal, And the operation of the fifth side instrument 105 will be described with reference to FIG.

At this time, the first side device 101 becomes the front end side directional device and the second side direction device 102 and the fifth side direction device 105 become the rear end side directional device.

First, in order to operate the surface collapse detection system, the collapse determination apparatus 20 transmits a measurement start signal to the first positioning apparatus 101 in the form of an RF signal using the RF communication unit 21 (S11).

When the measurement start signal is received, the operation control unit 13 of the first base unit 101 reads the temperature sensing signal and the humidity sensing signal output from the temperature sensing unit 11 and the humidity sensing unit 12, respectively, The current temperature and the current humidity detected by the device 101 are determined and stored in the storage unit 14 as the current environmental data (S12).

Then, the first radar apparatus 101 transmits the current environment data determined together with its own identification number (ID) stored in the storage unit 14 as cumulative environment data to the collapse determination apparatus 20 (S13).

In the case of the first locating device 101, since there is no preceding locating device corresponding to the first locating device 101, the cumulative environment data generated by the first locating device 101, as described above, Is the same as the current environmental data determined by the base 10 itself.

The collapse determination apparatus 20 stores the cumulative environment data transmitted from the first radar apparatus 101 in the storage unit 23 in correspondence with the first radar apparatus 101 with reference to the transmitted identification number (S14) .

The first radar apparatus 101 transmits the generated cumulative environment data to the second and fifth radar apparatuses 102 and 105, which are rear-end side radar apparatuses thereof, by using the RF communication unit 15 together with its own identification number And operates the first and second ultrasonic transmitters 161 and 171 and the first and second infrared transmitters 181 and 191 to transmit the ultrasonic signal and the infrared signal to the second and fifth radar apparatuses 102 and 105 (S15).

Therefore, the operations of the second and fourth radar apparatuses 102 and 105 as the rear end radar apparatuses are performed.

In this example, except for the cumulative environment data transmitted from the front-end side apparatus and the cumulative environment data newly generated and transmitted to the next rear-end side apparatus, the operation of each rear-end apparatus is the same, Will be described.

Therefore, the operation control section of the second Z-directional device 102 determines whether the measurement start signal has been transmitted from the collapse determination device 20 or whether cumulative environment data has been transmitted from the preceding-stage Z-directional device (for example, 101) (S16).

When the measurement start signal is transmitted from the collapse determination device 20 or the cumulative environment data is transmitted from the front end side directional device (for example, 101), the second side directional device 102, which is the rear end side directional device, The current temperature and the current humidity of the surrounding area are determined using the unit 12 and stored as current environmental data (S17).

Next, the second geo-reference device 102 generates new cumulative environment data by adding the cumulative environment data transmitted from the first geo-referencer 101, which is a front-end geo-geographical device, and its own current environment data, and stores the new cumulative environment data in the storage unit 14 (S18).

At this time, the cumulative environmental data is divided into the current environmental data measured by each of the plurality of the rangeers by the identification numbers of the corresponding rangeers.

The second ultrasonic transducer 102 then transmits ultrasonic signals and infrared signals from the first ultrasonic transmitter 161 and the first infrared transmitter 181 of the first ultrasonic transducer 101, 162 and the first infrared receiver 182 to determine the reception interval (i.e., the reception time difference) between the ultrasonic signal and the infrared signal transmitted from the first radar 101 (S19) .

Therefore, the operation control unit of the second radar 102 determines the reception time of the infrared signal as the reference time, and then sets the distance from the reference time to the reception of the ultrasonic signal to the front- (S19).

When the distance from the front-end side girder 101 adjacent in the row direction is calculated as described above, the second side girder 102 corrects the calculated distance by using the current environmental data to calculate the final distance to the front- (S110).

To this end, the second locating device 102 judges the front end temperature and the front end humidity, which are the temperature and the humidity measured by the front end locator 101 located immediately to the left of the cumulative environment data transmitted from the front end locator 101 , The determined shear temperature, the average temperature for the current temperature, and the average humidity for the shear humidity and the current humidity.

When the average temperature and the average humidity are calculated between the front end and the rear end of the two base units 101 and 102 as the rear end of the base unit, the distance calculated using the compensation value already determined according to the calculated average temperature and the average humidity is corrected, .

At this time, the compensation value according to the average temperature and the average humidity is already stored in the storage unit 14 of the geared device 102. [

In this example, since the ultrasonic signal and the infrared signal having different transmission speeds are different from each other in the unidirectional state (i.e., transmission state), the error rate of the signal according to temperature and humidity is reduced by half.

That is, in the case where only one ultrasonic signal or infrared signal is used, when the ultrasonic signal or the infrared signal is transmitted to the device for measuring and then the time is reflected by the device, The moving distance of the signal or the infrared signal is doubled as compared with the unidirectional state.

Therefore, as the moving distance of the ultrasonic signal or the infrared signal increases, the period in which the ambient environment is adversely influenced by the temperature and the humidity also increases, and the accuracy of the lateral movement operation is reduced as compared with the unidirectional case.

However, in this embodiment, since the ultrasonic signal and the infrared signal are transmitted in one direction from the front end to the rear end, as compared with the case where only one signal is used, , And the adverse effect of the surrounding environment is also reduced to 1/2, thereby improving the accuracy of operation.

In addition, since the first calculated distance is corrected by using the current temperature and the average value of the current humidity measured by the front-end range-finding unit, which is a transmitting unit that transmits ultrasonic signals and infrared signals respectively, and the rear-end range- The accuracy of the correction operation of the measured distance is further increased.

Then, the operation control unit of the second radar apparatus 102 transmits the final distance to the calculated front-end radar apparatus 101 and the cumulative environment data generated in step S18 using its RF communication unit 15, To the collapse determination apparatus 20 (S111).

Therefore, the collapse determination apparatus 20 stores cumulative environment data transmitted from the second radar apparatus 102 in the cumulative environment data already stored in the storage unit 23 as final candidate environment data, And stores it in the storage unit 23 (S113).

The operation control section of the second locating device 102 transmits the cumulative environment data generated in step S18 to the third locating device 102 and the sixth locating device 106 which function as the rear end locating device of the second locating device 102 (S112).

The third and the sixth radar apparatuses 103 and 106 receiving cumulative environment data from the second radar apparatus 102 perform the same operations as those of the second radar apparatus 102 already described.

At this time, the cumulative environment data generated by the third side apparatus 103 is composed of the current environment data measured by each of the first to third side apparatuses 101-103, 102) and the third side-by-side device (103).

The sixth radar device 106 also includes cumulative environment data composed of the current environmental data measured by the first, second and sixth radar devices 101, 102, and 106, respectively, and the first, And generates cumulative environment data consisting of current environmental data measured by the apparatuses 101, 105, and 106, respectively, and transmits the generated cumulative environment data to the downstream apparatuses 107 and 1010, respectively.

The final distance calculated by the sixth radar device 106 is the distance between the second radar device 102 and the sixth radar device 106 and the distance between the fifth radar device 105 and the sixth radar device 106 , And is transmitted to the collapse determination apparatus 20.

Similarly, when the fifth radar apparatus 105 receives the cumulative environment data from the first radar apparatus 101 or receives the measurement start signal from the collision determination apparatus 20, the fifth radar apparatus 105 also receives the first Cumulative environment data consisting of the current environmental data measured by the first and fifth radar apparatuses 101 and 105 is generated and transmitted to the sixth and ninth radar apparatuses 106 and 109 as rear-end side apparatuses, The final distance between the base unit 101 and the fifth base unit 105 is calculated and transmitted to the collapse determination apparatus 20 (S114-S120).

As described above, since each of the range finder apparatuses performs this operation, the 16th range finder apparatus 1016, which is the last range finder apparatus, Data is generated and transmitted to the collapse determination device 20. [

The sixteenth radar apparatus 1016 calculates the final distance between the twelfth radar apparatus 1012 and the sixteenth radar apparatus 1016 and the final distance between the fifteenth radar apparatus 1015 and the sixteenth radar apparatus 1016 Collision determination apparatus 20 as shown in FIG.

Unlike the present example, in an alternative example, operations (S110, S118) for compensating the calculated distances using the average temperature and the average humidity may be omitted if necessary, and in this case, The distance becomes the final distance from the front end range finder 101.

Next, the operation of the collapse determination apparatus 20 that receives the cumulative environment data and the calculated final distance from each of the radar apparatuses 101-1016 will be described with reference to Fig.

When the power required for the operation of the collapse determination apparatus 20 is supplied by the operation of the power supply unit 17 and the collapse determination apparatus 20 is operated, the operation of the collapse determination unit 22 is started (S20).

Therefore, the collapse determination unit 22 compares the final candidate environment data generated by the cumulative environment data transmitted from each of the base stations 101-1016 and the cumulative environment data transmitted from the last base station 1016, Data with a small loss of data is selected as final cumulative environment data and stored in the storage unit 23 (S21).

Breakdown judgment section 22 of the next, the collapse determining device 20 is already stored in all intervals (I 1 -I 24), the end section and the distance storage unit 23 for the (I 1 -I 24) with respect to the And compares the reference distance corresponding to the corresponding section (I 1 -I 24 ), and calculates the distance difference value between the final distance and the reference distance and the distance variation ratio (%), which is the variation amount of the distance difference with respect to the reference distance S22, S23).

If the distance change rate is larger than the reference distance, it may have a positive value, and conversely, if the distance change rate is smaller than the reference distance, it may have a negative value.

Thus, any period when (I 1 -I 24), the distance difference and its variation rate of the distance of the calculated decay determining section 22 is the section changes the direction of the distance variation rate on the (e.g., I 1) ( (I.e., a decreasing direction in which the distance change ratio has a positive value or a negative value) is the remaining interval (e.g., I 2 -I 24 ) (Step S24).

If the distance change direction for the section I 1 is different from the distance change direction for the remaining section I 2 -I 24 , the collapse determination section 22 determines that the distance difference value for the section I 1 is greater than the set value (S25).

If the distance difference value for the section I 1 is equal to or larger than the set value, the collapse determination section 22 determines the state of the section I 1 as a state in which the collapse has occurred and sets the corresponding section I 1 as the collapse section , Determines the amount of collapse using the calculated distance difference value, and stores the determination result for the section I 1 in the storage unit 23 (S26).

Since the data of collapse amount according to the distance difference value is already stored in the storage unit 23, the collapse judgment unit 22 can determine the collapse amount by using the data corresponding to the calculated distance difference value.

However, if the distance difference value for the section I 1 is less than the set value, the collapse determination section 22 determines that the distance variation amount of the section I 1 is insufficient to determine that the collapse state is small. Therefore, the collapse determination section 22 determines the section I 1 as a non-collapsing section in which the collapse phenomenon has not occurred, and stores the determination result in the storage section 23 (S27).

Again go to Step (S28), when the distance change direction for the interval (I 1) equal to the distance changes in the direction of the rest period (I 2 -I 24), breakdown judging section 22 is the period (I 1) It is determined whether the distance change ratio is equal to the distance change ratio of the remaining section (I 2 -I 24 ) within the error range (S 28).

The distance change of the interval (I 1) and the rest interval (I 2 -I 24) equal to each other when the distance variation rate, decay judgment section 22 of the corresponding region due to the breakdown phenomenon (I 1) for determining whether or not the current collapse It is determined that the distances of all the sections I 1 -I 24 are decreased or increased at the same rate by the surrounding environment such as the weather.

Therefore, if the distance change rates of the section I 1 and the remaining sections I 2 -I 24 are equal to each other, the collapse determination section 22 determines that the section I 1 is a non-collapse section, In the storage unit 23 (S29).

However, if it is determined in step S28 that the distance variation ratio between the corresponding section I 1 and the remaining section I 2 -I 24 is different, that is, from the distance variation ratio of the remaining section I 2 -I 24 , distance when the change rate and an interval having a different distance rate of change is present, the collapse determining section 22 is the period (I 1) to determine the pre-decay interval distance difference values for the interval (I 1) of the I 1) It is determined whether or not it is equal to or greater than the set value (S210).

Therefore, if the distance difference value for the section I 1 is equal to or larger than the set value, the section I 1 is determined to be the collapse section, otherwise, the non-collapse section is determined for the section I 1 , In the storage unit 23 (S211 - S212).

Thus, when collapsed if it is determined for the interval (I 1), the collapse judging section 22 is subjected to breakdown determination operations for the next interval (for example, I 2) (S213), all the intervals (I 1 - I 24 will be performed sequentially. At this time, the order of determining the collapse of each section is already stored in the storage unit 23.

If it is determined in step S213 that collision is not performed on all the intervals I 1 to I 24 using the transmitted final distances and the stored reference distances, the collapse determination unit 22 determines, To the control device 30 via the Internet communication unit 26 (S214).

5, if necessary, the operation of steps S25 and S210 may be omitted. In this case, if the distance change direction of the corresponding section is different from another section (S24), or if the distance change direction of the corresponding section is different (S28), the collapse determination section 22 determines that the section I 1 is a collapse section.

The operation control unit 32 of the control apparatus 30 transmits data indicating the collapse of each section I 1 -I 24 and the final cumulative environment data from the collapse determination apparatus 20 via the communication unit 31, And outputs the data to the data output unit 33.

Therefore, the administrator uses the data output through the data output unit 33 to determine the current temperature and the current humidity measured by each of the base units 101-1016, determines the surrounding environment of each base unit, and , The position of the section where the collapse occurs and the degree of collapse are determined accurately and quickly, and necessary measures are taken.

In addition, when there is a section in which the collapse has occurred, the operation control section 32 displays the section in which the collapse occurred through the status display section 34 or notifies the outside of the collapse occurrence status. Therefore, .

The control apparatus 30 also has a storage section, and the operation control section 32 of the control apparatus 30 stores the data transmitted from the collapse determination apparatus 20 in the storage section.

Next, the operation of generating the measurement start signal performed by the collapse determination unit 22 of the collapse determination apparatus 20 will be described with reference to Fig.

When the operation is started (S30), the collapse determination unit 22 measures the elapsed time after transmitting the measurement start signal to the first positioner 101 by using the timer 24 (S31).

The storage unit 23 of the collapse determination apparatus 20 outputs the measurement start signal to the first side apparatus 101 and then outputs the cumulative environment data and the set time Is stored.

Next, when the elapsed time is determined after the measurement start signal is transmitted to the first locomotion apparatus 101, the collapse determination unit 22 uses the set time stored in the storage unit 23 to calculate the elapsed time at each set time It is judged whether the cumulative environment data and the final distance have been transmitted from the respective radar apparatus 101-1016 to the collapse determination apparatus 20 (S32).

If the cumulative environment data and the final distance are not transmitted from the corresponding geographical device (for example, 102) within the determined set time, the collapse determination section 22 determines that the corresponding geographical device 102 has lost or damaged the communication device , It is determined that the communication operation is not performed smoothly.

In this case, since the cumulative environment data can not be received from the front end range finder 102, the rear end range finder 103 (for example, 103) located immediately behind the corresponding range finder 102, It is impossible to perform the side operation with respect to the vehicle.

Therefore, if the cumulative environment data and the final distance are not transmitted from the corresponding geographical device (for example, 102) within the determined set time (S33), the collapse determination section 22 transmits the cumulative environment data and the final distance within the set time (S10-103, S105, S109, or S1013) located at the top row or the leftmost row (S34).

(101-103, 105, 109, and 1013) positioned at the top row or the leftmost row as the front-end side-to-side apparatus, If the cumulative environment data is not received, the measurement operation of the laterally arranged measurement apparatus including itself can not be performed.

Therefore, the collapse determination unit 22 determines whether or not the collision avoidance judgment unit 22 has received the cumulative environment data and the final distance within the set time, , The measurement start signal is transmitted to the rear stage side apparatuses (for example, 102 and 105) for the respective side apparatuses 101-103, 105, 109 and 1013 (S35).

Therefore, although the cumbersome environmental data is not received from the front-end locomotives 101, the corresponding locomotives 102, 105 can not detect the abnormal operation of the preceding-end locomotives 101 by the measurement start signal transmitted separately from the collapse- The measurement operation is performed irrespective of whether or not the measurement is performed in a matrix form so that the measurement operation can be performed normally.

In this example, each of the base units has two ultrasonic transmitters, two ultrasonic transmitters, two infrared transmitters, and two infrared transmitters for transmitting and receiving an ultrasonic signal and an infrared signal in different directions.

However, the present invention is not limited to this, and it is possible to calculate the distance between two adjacent ultrasonic signals and infrared signals by providing one ultrasonic transmitter and receiver and one infrared transmitter and receiver for transmitting and receiving ultrasonic signals and infrared signals in a predetermined direction .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

10, 101-1016: a base unit 11: a temperature sensing unit
12: Humidity sensing unit 13, 32: Operation control unit
14, 23: storage unit 161, 171: ultrasonic transmission unit
162, 172: Ultrasound receiver 181, 191: Infrared transmitter
182, 192 infrared receiver 20 decay device
22: Decay section

Claims (11)

delete delete A plurality of distance ranging units arranged in a detection area for detecting whether collapse occurs
Lt; / RTI >
Wherein the plurality of distance-
Shear distance,
A rear end distance locator positioned immediately adjacent to the front end distance locator in a first direction or a second direction, and
And a collapse determination device communicating with the front-end-distance-side geographical device and the rear-
Lt; / RTI >
Wherein the front-end distance-to-near range and the rear-
A temperature sensing unit for sensing the temperature and outputting a temperature sensing signal corresponding to the sensed temperature,
A humidity sensing unit for sensing humidity and outputting a humidity sensing signal corresponding to the sensed humidity,
An operation control unit connected to the temperature sensing unit and the humidity sensing unit,
First and second ultrasound transmission units connected to the operation control unit and configured to transmit ultrasound signals in the first direction and the second direction,
First and second ultrasound receiving units connected to the operation control unit and respectively receiving ultrasound signals received from the first direction and the second direction,
First and second infrared transmission units connected to the operation control unit and respectively transmitting infrared signals in the first direction and the second direction,
And first and second infrared receivers connected to the operation control unit and respectively receiving infrared signals received from the first direction and the second direction,
Lt; / RTI >
Wherein the operation control unit of the front-
When the cumulative environment data is received from a distance-based geographical proximity device located immediately before the front-end distance measuring device, the current temperature and the current humidity are determined using the temperature sensing signal and the humidity sensing signal of the temperature sensing unit and the humidity sensing unit Current environmental data is generated,
Adding the current environment data to the received cumulative environment data to generate new cumulative environment data, transmitting the cumulative environment data generated by the downstream equipment and the collapse determination apparatus,
The operation control unit of the rear-
A reception time when the ultrasonic signal is received by the first or second ultrasonic receiver and a reception time when the infrared signal is received by the first or second infrared receiver is determined,
Wherein the distance measuring unit measures the time from the reference time to the receiving time of the ultrasonic signal and calculates the distance to the front end distance measuring unit using the measured time to calculate the distance And an average temperature of the current temperature measured by the trailing edge distance measuring device and the cumulative environmental data transmitted from the front end distance measuring device are transmitted to the collapse determining device, The distance calculated using the front end humidity and the average humidity with respect to the current humidity measured by the rear end distance measuring device,
The collapse determination apparatus includes:
The distance transmitted from the rear end distance geographical apparatus is compared with a reference distance stored in the storage unit to calculate a distance difference value and a distance variation ratio with respect to the reference distance and if the distance variation direction of the calculated distance variation ratio is different And the distance change direction of the distance change ratio is the same as the distance change direction of the other section, but when the distance change ratio of the corresponding section is different from the distance change ratio of the other section, The interval between the distance-measuring units is determined as the collapse section,
When the elapsed time reaches a preset time and cumulative environment data is not transmitted from the rear end distance locating device within the set time, When the apparatus is a distance-side apparatus in which the apparatus is located in the uppermost row or the left-most column, a measurement start signal is output to the distance-
The collapse determination apparatus is located adjacent to the distance ranging apparatus having the largest cumulative environmental data among the front-end distance measuring apparatus and the rear-end distance measuring apparatus so as to reduce the data loss of the cumulative environment data
Surface Collapse Detection System. delete delete delete delete delete delete delete delete
KR1020150067460A 2015-05-14 2015-05-14 Apparatus for determining collapse of surface KR101720556B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100673484B1 (en) * 2004-12-08 2007-01-24 한국전자통신연구원 Location measuring device, system and method using that device
JP2007071551A (en) * 2005-09-02 2007-03-22 Daiwatekku Kk Ultrasonic snow sensor and snow melting device using it
JP2011185692A (en) * 2010-03-08 2011-09-22 Nec (China) Co Ltd System, method and apparatus for determining abnormal displacement of positioning apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100893114B1 (en) * 2002-01-31 2009-04-14 후지쯔 가부시끼가이샤 Ultrasonic length measuring apparatus and method for coordinate input
KR100658494B1 (en) * 2004-04-09 2006-12-18 이근호 Apparatus, system, and method for measuring slope displacement
KR101290824B1 (en) * 2011-11-28 2013-07-29 조태준 Infrastructure maintenance and management businesssupport system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100673484B1 (en) * 2004-12-08 2007-01-24 한국전자통신연구원 Location measuring device, system and method using that device
JP2007071551A (en) * 2005-09-02 2007-03-22 Daiwatekku Kk Ultrasonic snow sensor and snow melting device using it
JP2011185692A (en) * 2010-03-08 2011-09-22 Nec (China) Co Ltd System, method and apparatus for determining abnormal displacement of positioning apparatus

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