KR20170074411A - Debris Barrier Safety Monitoring Method and System based on Single Camera with Multi-Sensor - Google Patents

Debris Barrier Safety Monitoring Method and System based on Single Camera with Multi-Sensor Download PDF

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KR20170074411A
KR20170074411A KR1020150183654A KR20150183654A KR20170074411A KR 20170074411 A KR20170074411 A KR 20170074411A KR 1020150183654 A KR1020150183654 A KR 1020150183654A KR 20150183654 A KR20150183654 A KR 20150183654A KR 20170074411 A KR20170074411 A KR 20170074411A
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South Korea
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sensing value
sensor
value
intensity
sensing
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KR1020150183654A
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Korean (ko)
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최효섭
고재진
정성환
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전자부품연구원
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/10—Services
    • G06Q50/26—Government or public services
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C7/00—Tracing profiles
    • G01C7/02—Tracing profiles of land surfaces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/06—Investigating concentration of particle suspensions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft

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Abstract

A single camera-based multiple sensor interlocking four-way dam safety monitoring method and system are provided. The safety monitoring system according to an embodiment of the present invention may be installed in different areas and may select one of the sensors from sensors receiving the sensing value at an intensity proportional to the sensing value, Camera. As a result, it is possible to monitor the safety state of the four-way dam by interlocking a plurality of sensors based on a single camera, thereby reducing cost and management.

Description

Technical Field [0001] The present invention relates to a safety monitoring method and system for a multi-

The present invention relates to safety monitoring techniques, and more particularly, to a method and system for monitoring the safety of a four-way dam.

Sambang Dam is a dam designed to prevent the occurrence of landslides by dugging the riverbed, cutting both sides of the mountain, and preventing the earth and sand from flowing down in the valley where the riverbed slope is large.

Desalinated water is used for agricultural water and forest fire purification, and it is also used as a leisure facility for leisure activities.

Since Sambang Dam is located in mountainous area, there is difficulty in facility management and rapid safety monitoring.

In particular, it is necessary to apply the number of type factors referred to in the safety monitoring of the dam site flexibly and to use the minimum camera to simplify cost and management.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a safety monitoring method and system in which a plurality of sensors are interlocked based on a single camera.

According to an aspect of the present invention, there is provided a safety monitoring system comprising: sensors installed in different areas for transmitting a sensing value at an intensity proportional to the sensing value; And a camera for selecting one of the areas from the reception intensity of the sensing value and photographing the selected area.

The safety monitoring system according to an embodiment of the present invention may further include a processing unit for monitoring a safety state by making a comprehensive reference to an image photographed by the camera and a sensing value generated by the sensor .

In addition, the 'first algorithm for determining the safety state from the photographed image with respect to the first factor sensed by the first sensor' and the 'first algorithm for determining the safety state from the photographed image with respect to the second factor sensed by the second sensor' 2 algorithm 'may be different from each other.

The sensor transmits the sensing value at a maximum intensity when the sensing value exceeds a threshold value, and the camera compares a result obtained by normalizing reception intensities of the sensing values transmitted by the sensors, Or the like.

Also, the sensing value may include at least one of a terrain sensing value, a water level sensing value, a flow velocity sensing value, and a floating foreign matter sensing value, and the safety state may be a safety state of the four-way dam.

According to another aspect of the present invention, there is provided a method for monitoring a safety, the method comprising the steps of: transmitting a sensing value, which is installed in different areas, at an intensity proportional to the sensing value; And selecting one of the areas from the received intensity of the sensing value and photographing the selected area.

As described above, according to the embodiments of the present invention, it is possible to monitor the safety state of the four-way dam by interlocking a plurality of sensors based on a single camera, thereby reducing cost and management.

In addition, according to the embodiments of the present invention, it is possible to ensure the accuracy of state grasp by safety monitoring in which a sensor and an image are considered in combination.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a safety monitoring system according to an embodiment of the present invention,
FIG. 2 is a view provided to explain the installation situation of the safety monitoring system of FIG. 1, and FIG.
Fig. 3 is a diagram provided in the explanation of the safety monitoring method of the four-way dam by the system shown in Fig.

Hereinafter, the present invention will be described in detail with reference to the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view provided in a conceptual description of a four-way dam safety monitoring system according to an embodiment of the present invention; FIG. The safety monitoring system according to an embodiment of the present invention is constructed through a plurality of sensor nodes 110 and a monitoring device 200 as shown in FIG.

The plurality of sensor nodes 110 is a set of nodes for sensing a safety monitoring type factor (topography, water level, flow velocity, floating foreign matter, etc.) and transmitting the sensing value to the monitoring device 200 wirelessly.

Accordingly, the plurality of sensor nodes 110 can be classified into a terrain sensing sensor, a water level sensor, a flow velocity sensor, a floating foreign matter sensor, and the like.

The monitoring device 200 includes a sensor receiving device 210, a rotating single camera 220, and an algorithm processing device 230.

The sensor receiving apparatus 210 receives sensing values from the plurality of sensor nodes 110 and transmits the sensed values to the rotation single camera 220 and the algorithm processing apparatus 230.

The rotating single camera 220 rotates 360 degrees to selectively photograph a specific area to generate an image. The generated image is transmitted to the algorithm processing unit 230.

The algorithm processing unit 230 processes the image photographed by the rotating single camera 220 with an image algorithm to generate a state value and outputs the generated state value together with the sensed value received through the sensor receiving apparatus 210 , And judges the safety state of the four-way dam.

Fig. 2 is a view provided for explaining an installation situation of the safety monitoring system shown in Fig. 1. Fig.

As shown in FIG. 2, the entire monitoring area is divided into a plurality of areas (area A, area B, area C, area D), and a plurality of sensor nodes 110 are uniformly arranged in each area.

The monitoring device 200 including the sensor receiving device 210, the rotating single camera 220 and the algorithm processing device 230 is located at the center of the entire monitoring area. The sensor receiving apparatus 210 is capable of wirelessly receiving sensing values from a plurality of sensor nodes 110 distributed in a plurality of regions (region A, region B, region C, region D).

On the other hand, the plurality of sensor nodes 110 transmits the sensing value as 'intensity proportional to the sensing value'. That is, the larger the sensing value is, the larger the intensity is transmitted, and the smaller the sensing value is, the smaller the intensity is transmitted. If the sensing value exceeds the threshold value, the plurality of sensor nodes 110 transmit the sensing value at the maximum intensity.

The rotating single camera 220 picks up one region among a plurality of regions (region A, region B, region C, region D). The area selection is based on the reception intensity of the sensing value.

For example, the rotating single camera 220 selects an area in which a plurality of sensor nodes 110, which transmit sensing values at an intensity greater than a predetermined intensity, are arranged, and performs photographing while adjusting an angle of view to a predetermined area by a rotation operation.

Since the algorithm processing unit 230 determines the safety state of the four-way dam by considering the sensing value and the state value generated by the image algorithm, it is possible to make an accurate judgment. Further, the algorithm processing unit 230 uses an image algorithm optimized for each type factor.

That is, the algorithm for monitoring / determining the topography from the image, the algorithm for monitoring / determining the level from the image, the algorithm for monitoring / determining the flow rate from the image, and the algorithm for monitoring / Are different.

Fig. 3 is a diagram provided in the explanation of the safety monitoring method of the four-way dam by the system shown in Fig.

The sensor receiving apparatus 210 measures RSSI (Received Signal Strength Indicator) of the signal containing the sensor value received from the plurality of sensor nodes 110, normalizes the received signal strength indicator, and transmits it to the rotating single camera 220 do.

This is because the 'maximum transmission intensity' is different for each of the plurality of sensor nodes 110 and 'the distance from the sensor receiving apparatus 210' is different. For normalization, the sensor receiving apparatus 210 has information on the maximum transmission intensity and distance of the plurality of sensor nodes 110. [

The rotating single camera 220 photographs an area in which the plurality of sensor nodes 110 transmitting the signals exceeding the predetermined intensity (threshold value) among the normalized RSSIs are disposed, and generates an image.

If there is no plurality of sensor nodes 110 transmitting a signal exceeding a predetermined intensity, the rotating single camera 220 photographs an area where a plurality of sensor nodes 110 transmitting the signal having the largest normalized RSSI are disposed .

Then, the algorithm processing unit 230 considers the image algorithm execution result and the digitized sensing value (sensor ADC value) for the type factor generated by the plurality of sensor nodes 110 that have transmitted the signal exceeding the threshold, Monitor / judge the safety status of the dam.

Up to now, a single camera based multiple sensor interlocking four-way dam safety monitoring method and system has been described in detail with a preferred embodiment.

In the above embodiment, the type parameter can be flexibly added and changed, so that it can be utilized for monitoring without limitation on the number of types and types.

In addition, one camera can be usefully utilized, minimizing cost and management.

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, but, on the contrary, It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

110: Multiple sensor nodes
200: Monitoring device
210: Sensor receiving device
220: Rotating Single Camera
230: Algorithm processing unit

Claims (6)

Sensors installed in different regions and transmitting the sensing value at an intensity proportional to the sensing value;
And a camera for picking up one of the areas from the reception intensity of the sensing value and photographing the selected area.
The method according to claim 1,
Further comprising: a processing unit for monitoring a safety state by collectively referring to an image photographed by the camera and a sensing value generated by the sensor.
The method of claim 2,
A first algorithm for determining a safety state from a photographed image with respect to a first factor sensed by a first sensor and a second algorithm for determining a safety state from a photographed image with respect to a second factor sensed by a second sensor, Are different from each other.
The method of claim 2,
The sensors,
If the sensing value exceeds a threshold value, transmitting the sensing value at a maximum intensity,
The camera comprises:
Wherein one of the regions is selected by comparing results obtained by normalizing reception intensities of the sensing values transmitted by the sensors.
The method of claim 2,
The sensing value may be,
Wherein the at least one sensor comprises at least one of a terrain sensing value, a water level sensing value, a flow velocity sensing value, and a floating foreign matter sensing value,
In the safety state,
Wherein the safety monitoring system is a safety monitoring system.
The method comprising the steps of: transmitting a sensed value, which is installed in different regions, with an intensity proportional to the sensed value;
And selecting one of the regions from the received intensity of the sensing value and photographing the selected region.
KR1020150183654A 2015-12-22 2015-12-22 Debris Barrier Safety Monitoring Method and System based on Single Camera with Multi-Sensor KR20170074411A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101982631B1 (en) 2017-12-29 2019-05-27 경희대학교 산학협력단 Monitoring System for Sediment Control Dam
KR20210115245A (en) 2020-03-12 2021-09-27 이용 Intelligent dam management system based on digital twin
KR20210115246A (en) 2020-03-12 2021-09-27 이용 Integral maintenance control method and system for managing dam safety based on 3d modelling

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101982631B1 (en) 2017-12-29 2019-05-27 경희대학교 산학협력단 Monitoring System for Sediment Control Dam
KR20210115245A (en) 2020-03-12 2021-09-27 이용 Intelligent dam management system based on digital twin
KR20210115246A (en) 2020-03-12 2021-09-27 이용 Integral maintenance control method and system for managing dam safety based on 3d modelling

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