KR20200077325A - The Easy Installation Type Inundation Monitoring System - Google Patents

Abstract

The present invention relates to an easily installable inundation detection system. The system includes a system installation base, a sensor unit, a housing, and a gateway and notifies a local government monitoring center of urban inundation. A pressure-type water level sensor and a variable resistance-type water level sensor are installed in the sensor unit. The pressure-type sensor is installed in a rainwater pipe to observe the water level of the rainwater pipe. The variable resistance-type water level sensor is installed on a road surface to observe the flood level of the road. The housing is provided with a tilt sensor, a GPS module, a communication module, and a power module. The tilt sensor provides information on damage to the system installation base. The GPS module provides information on theft or deviation of the system installed in a designated place and is capable of enhancing the stability of the system in relation to external environments. Information of sensors scattered at potential inundation sites is transmitted by short-range wireless LoRa communication to the gateway performing data conversion and processing. The data is transmitted to a database server by long-range wireless CDMA communication. The system installation base can be conveniently installed on a curb simply by anchor bolt fastening. The communication module is wireless and the power module uses a battery without requiring line connection. The system uses low-power components and the system is capable of remaining active for months even with a battery module alone.

Description

The Easy Installation Type Inundation Monitoring System

The present invention relates to a simple installation type water resistance detection system, and more particularly, to a simple installation type water resistance detection system for real-time monitoring of inundation in urban areas.

Rainfall in places, mostly urban areas, made up of impermeable layers, such as asphalt roads, flows to the sideways through the surface and water is excluded as the final outlet through the stormwater lines. Therefore, it is important to measure the water level in the road, that is, the surface level and the level of the rainwater pipe in order to monitor the inundation in urban areas.

The present invention provides a simple installation stand capable of effectively installing a sensor capable of measuring the above items and other communication module data loggers, etc., and stores measured data from the sensor in the server, and effectively in case of flooding to the local government's situation room. It is about a propagating system.

In Korea, the natural and anthropogenic environments are complex and diverse, so the possibility of natural disasters such as Feng Shui and the amount of damage resulting from it are relatively large compared to other countries. In addition, the intensity of disasters is increasing according to the global ideal climate, and the magnitude of disaster damage is rapidly increasing due to socio-economic development, and the importance of disaster prevention is increasing.

Due to the rapid urbanization, the impermeable layer increases in cities, and pollutants such as carbon dioxide from industrialization and industrialization increase, causing climate change such as global warming. In addition, frequent heavy rains in urban areas, such as frequent occurrences of abnormal weather such as El Niño and La Niña, threaten the lives and property of citizens living in cities by flooding roads, houses, and shopping malls in a short time. It is doing.

Domestic hot springs, Ulsan Taehwa River, and Gangnam, Seoul are repeatedly flooded every year. In order to prevent flooding damage caused by local heavy rain in urban areas, various types of reduction measures have been established by national and local governments, but it is difficult to deal with the damage caused by sudden heavy rain.

The Meteorological Agency's meteorological forecasting system, which detects and forecasts heavy rains in these urban areas, provides rapid forecasts for a wide range of areas through meteorological satellites, but cannot provide detailed meteorological information at local locations. The actual disaster prevention effect has not been achieved.

In order to improve this problem, an immersion detection system is installed in the expected flooding area, but the conventional immersion detection system is integrated with an immersion detection sensor, a communication device, and an installation table, so it cannot be installed in a narrow place. Therefore, the system configuration is simple, such as installing only the sensor separately, and thus, there is an inadequate problem to accommodate various needs of users. In addition, if the integrated flood detection system is installed, its size is bloated, so that the neighbors' eyes can be easily seen, and the area where the system is installed can create a negative image of a wet flood zone, so local residents' backlash will exist.

1. Korea Registered Patent Publication No. 10-1673768 (2016.11.01. registration, flood detection alarm and alarm system, patent application No. 10-2015-0065111) 2. Korean Registered Patent Publication No. 10-1343903 (Registered on Dec. 19, 2013, a mobile immersion alarm device with a built-in detection sensor and a mobile immersion detection system using the immersion alarm device, Patent Application No. 10-2013-00070889) 3. Korean Registered Patent Publication No. 10-1775016 (2017.08.30. Registered, road flooding detection system with variable sensor, patent application No. 10-2016-0007994) 4. Korean Registered Patent Publication No. 10-1365688 (registered on Feb. 14, 2014, a road inundation guidance system using a road flood detection device, patent application No. 10-2012-0048970)

The present invention has been devised to solve the above problems, and an object of the present invention is to provide an inundation detection system that can be easily installed in a local location where detailed forecasting is difficult as a weather forecast system as a system that complements the existing system. It is to provide a system that can easily install storm water level sensors and immersion detection sensors in urban areas and systems that effectively measure the above items and propagate them to the local situation room when risk is detected.

In addition, the system is installed in a location where flooding is expected in the urban area to provide a method for real-time observation of the water level in the road surface and the water level in the rainwater pipe and transmitting data to the database server.

In addition, the system of the present invention is mainly installed on the road boundary stone, and it should be easy to install and dismantle according to the site situation, and provides a method to prevent theft, damage, and escape from the outside.

In addition, real-time items measured in the system of the present invention provide a method capable of transmitting data in an efficient and economical manner.

In addition, items measured in the system of the present invention are stored in a database server, and a monitoring situation at each point is provided to the web system.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object of the present invention, according to a preferred embodiment of the present invention, a simple installation type water-immersion detection system is a system installation table that can be installed regardless of the height of a road boundary stone, and whether it is attached to one side of the installation table or not A sensor unit for sensing, a housing unit installed on the upper side of the installation table, a gateway that receives information from the sensor unit to perform data conversion processing, and receives and stores information from the gateway, stores and stores the stored information in real time. It is possible to propagate to the control room server in real time whether or not the installation table is flooded, including a database server that transmits to the control room server installed in the control room of the local government.

According to a preferred embodiment, the sensor unit includes a pressure-type water level sensor 100 and a variable resistance type water level sensor 200, wherein the pressure-type water level sensor is installed in the rain water pipe to observe the water level of the rain water pipe, and the variable resistance type A water level sensor is installed on the road surface to observe the flood level on the road.

According to a preferred embodiment, the housing portion is provided with a tilt sensor, a GPS module, a communication module, and a power module, and the tilt sensor provides information about damage to the system installation table, and the GPS module is installed in a designated place or the system is stolen or Provide information about churn.

According to a preferred embodiment, the gateway in the enclosure is performed by LoRa short-range wireless communication, and the gateway and the database server are performed by CDMA long-range wireless communication to transmit economically and stably measured data.

According to a preferred embodiment, the system installation table is configured to be installed simply by fastening an anchor bolt on a road boundary stone, and there is no need to separately connect a communication line and a power line with a wireless communication module and a battery power module.

The simple installation type inundation detection system according to the present invention is installed at a location where inundation is expected in an urban area to analyze the root cause of the inundation, thereby enabling the effect of reducing the magnitude of inundation damage. In addition, it is possible to reduce flooding disasters and minimize the size of disasters by predicting and predicting the proliferation, scale, and route of flood damage.

In addition, the simple installation type inundation detection system according to the present invention can provide information for establishing a specialized disaster prevention plan suitable for the installed city by contributing to the identification of the damage characteristics caused by an inundation disaster and the establishment of a crisis management system for emergencies. By building an integrated database through analysis and collection of data related to various natural disasters, it is possible to facilitate data management and ease of use.

In addition, the simple installation type inundation detection system according to the present invention can help in the study for building a disaster prediction model suitable for the domestic natural environment, and also evaluate the impact on constructions and society in general, which are damaged from various natural disasters. It is possible to establish an evaluation metric system for.

In addition, the simple installation type inundation detection system according to the present invention can be used as back data of a city design that is safe for disasters and disasters when planning a new city through regional risk assessment data, and it is possible to immediately predict the scale of damage in the event of a disaster. It is possible to respond and reduce the secondary damage by providing supplies at the right time with the smooth preparation of emergency and relief supplies.

1 is a schematic diagram of a simple installation type water-immersion detection system according to an embodiment of the present invention.
Figure 2 is a schematic diagram of a pressure-type water level sensor for measuring the water level in the rainwater in a simple installation type water-immersion detection system according to an embodiment of the invention
Figure 3 is a side view of a variable-resistance water level sensor for measuring the surface water level in a simple installation type water-immersion detection system according to an embodiment of the present invention.
4 is a photograph of a housing including a tilt sensor, a LoRa communication module, a board, and the like, in a simple installation-type immersion detection system according to the present invention.
5 is a photograph of a GPS module configured in a simple installation-type water-immersion detection system housing according to the present invention.
Figure 6 is a photograph of a data logger configured in a simple installation type inundation detection system gateway according to the present invention.
7 is a cross-sectional view of the exterior of a simple installation-type water immersion detection system installation table according to the present invention.
8 is a photograph of an embodiment in which a simple installation type water-immersion detection system according to the present invention is installed.
9 is a monitoring web screen that can grasp in real time the situation of the simple installation type inundation detection system according to the present invention.

Advantages and features of the present invention, and methods for achieving them will be clarified with reference to embodiments described below in detail along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only the present embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention pertains. It is provided to fully inform the holder of the scope of the invention, and the invention is only defined by the scope of the claims.

Hereinafter, specific contents for carrying out the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals refer to the same components regardless of the drawings, and "and/or" includes each and every combination of one or more of the mentioned items.

Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are only used to distinguish one component from another component. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical spirit of the present invention.

The terminology used herein is for describing the embodiments, and is not intended to limit the present invention. In the present specification, the singular form also includes the plural form unless otherwise specified in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components other than the components mentioned.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used as meanings commonly understood by those skilled in the art to which the present invention pertains. In addition, terms defined in the commonly used dictionary are not ideally or excessively interpreted unless specifically defined.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The simple installation type water-immersion detection system according to the present invention is composed of an installation table, a sensor unit, a housing unit, a gateway, and a database server. When a rainfall occurs in the installed area, the sensor unit detects the water level and transmits the data to the database server, and the data is displayed by the monitoring web system, so that data can be viewed in the local situation room.

The sensor part of the simple installation type water resistance detection system of the present invention is provided with a pressure-type water level sensor 100 and a variable resistance type water level sensor 200. The pressure type water level sensor 100 is installed in the storm water pipe to observe the water level of the storm water pipe.

The pressure-type water level sensor 100 converts water pressure into water depth to calculate a measured value. When installing the pressure-type water level sensor 100, it is necessary to select and install a location where the water pressure is constant. The pressure-type water level sensor 100 is installed in the water, and thus has the advantage of being hardly affected by wind, turbulence, foam, steam, and temperature difference.

The variable resistance water level sensor 200 is installed on the road surface to observe the flood level on the road. The variable resistance type water level sensor 200 has a feature of estimating the water level with a resistance value that is variably changed according to the water level. When the water level is high, the resistance is low, and when the water level is low, it has a high resistance value. Since the sensor is a resistor, a voltage divider circuit can be configured to read the value with the ADC pin of the microcontroller.

The housing part of the simple installation type inundation detection system of the present invention is provided with a tilt sensor 300, a GPS module 400, a communication module 300, and a power module. The tilt sensor provides information about the damage to the system installation table, and the GPS module can provide information about the theft or departure of the system installed in a designated place to promote stability of the system from the external environment.

Tilt sensor 300 is installed in the horizontal direction from the mounting table. It is a sensor that measures the degree of inclination in the X-axis direction on the horizontal plane. The GPS (Global Positioning System) module 400 is a satellite navigation system that receives a signal from a GPS satellite and calculates a user's current location, and is mainly used for navigation devices such as aircraft, ships, and automobiles.

At the gateway of the system, information from sensors installed and distributed in each flooded area is transmitted through LoRa local wireless communication to perform data conversion and processing, and the data is transmitted to the database server through CDMA long-distance wireless communication.

The data logger 600 installed in the gateway serves to convert electrical or physical signals collected from each sensor into numerical data. LoRa (Long Range) communication, which transmits data to the gateway, is a low power wide area (LPWA) technology that helps objects communicate with each other. Compared to other communication networks, it can be called a dedicated Internet of Things (IoT) network because it can communicate over long distances with less power. In addition, the use of Laura communication has the advantage of being able to maintain device battery life for many years due to low power consumption.

Features of each wireless communication division LTE Cat.M1 LTE-M LoRa NB-IoT frequency LTE band
0~1.08MHz variable LTE band
0-20MHz variable Unlicensed band
125kHz*8 channels LTE band
180 kHz fixed Transmission speed ∼300kbps ∼10Mbps 5.4 kbps ∼27kbps Available service Data, voice, photo Data, audio, video Small data such as sensor measurements Small data such as sensor measurements Battery life Many years or more Several months Many years or more Many years or more

In FIG. 6, the installation table 500 of the system is integrally configured to easily install the sensor part and the housing part, and the installation table is installed only by fastening an anchor bolt on the road boundary stone. The cable of the pressure-type water level sensor 100 installed inside the rainwater pipe is connected to the housing part through the back of the installation stand, and the variable resistance type water level sensor 200 is attached to the back of the housing to measure the water level on the road. Transmission of the measured data is performed by LoRa wireless communication, and the power module is adopted as a storage battery, so that it is not necessary to connect communication lines, power lines, etc. The detailed parts of the system are low-power items, and even with a battery module, the system can be activated for several months.

Additionally, FIG. 7 is a photograph of an embodiment in which a simple installation type water-immersion detection system is installed.

The data measured in the system is stored in a database server via a gateway and the stored data is displayed as a monitoring web system as shown in FIG. 9. In the web system, location information, time information and water level sensor can be basically searched, and battery information and tilt information can be searched in detail. You can also search and download past data.

System Details (I) subject product name standard Data Logger Board

-Frequency Band: 2.4GHz
-Board Type: Evaluation Platform
-Type: MCU 32-Bit
-Core Processor: ARM® Cortex®-M4
-Platform: Nucleo
-Mounting Type: Fixed
-Contents: Board(s) NUCLEO-L432KC Gateway Board

-STM32 microcontroller in LQFP144 package
-External SMPS to generate Vcore logic supply (only available on'-P' suffixed boards)
-Ethernet compliant with IEEE-802.3-2002
-USB OTG or full-speed device*?*
-32.768 kHz crystal oscillator
-Support of a wide choice of Integrated
-Development Environments (IDEs) including
-IAR™, Keil®, GCC-based IDEs, Arm® Mbed™ NUCLEO-L496ZG-P LoRa module

-32-bit ARM Cortex-M3 core
-Programmable Output power Up to 14dBm
-Over -100dBm Sensitivity
-Real time Clock
-UART, I2C, SPI, 12bitADC
-IEEE 802.15.4g PHY SO9-HN-M1

-Low-Power Wireless
-Home and Building Automation
-Wireless Alarm and Security Systems
-Industrial Monitoring and Control Smart Grid and Automatic Meter Reading
-Wireless Healthcare Applications
-Wireless Sensor Networks
-Long-Range Sensor Applications
-Heat-Cost Allocators SO9-HN-G2 RF SMA antenna

-Frequency: 902~928MHz
-Impedance: 50 Ohm nominal
-VSWR ≤ 2.5
-Gain (Max): 2 dBi
-Polarization: Vertical
-Radiation Pattern: Omni-Directional (nominal)
-Admitted Power: 5W maximum
-Electricle: 1/2λ Dipole PL-A900

System Details (II) subject product name standard LoRa module antenna
connector

-Length: 250mm
-External antenna connection
-For IoT module connection
-With screws for fixing the SMA connector case (can be fixed through the case) NMT-U.FL/SMA(F) Variable resistance water level sensor

-Thickness: 0.015" (0.381mm)
-Width: 1.0" (25.4mm) Actuation
-Depth: Nominal 1” (25.4 mm)
-Resolution: <0.01“ (0.25 mm)
-Resistance Gradient: 150W /inch (60W/cm)
-Connector: Male Crimpflex Pins
-Power Rating: 0.5 Watts (VMax = 10V)
-Temperature Range: -9°C-65°C eTape Tilt sensor

-Power supply: 3-5V (internal low dropout regulator)
-Size: 15.5mmx11.5mmx3.5mm 2.54mm pitch
-Direct Data: YAW ROLL PITCH
-Heading angle (YAW) ± 180 °
-Roll angle (ROLL) ± 180 °
-Pitch angle (PITCH) ± 180 °
-0.01 ° angular resolution GY-25 module GPS module

-Destined module
-Save the configuration parameter data EEPROM Down
-data backup battery
-There are LED signal indicator
-Antenna size 25mm * 25mm
-Module size 25mm * 35mm
-Installation aperture 3mm
-Default Baud Rate: 9600
-Compatible with various flight control modules that provide GPS computer test software SZH-EK095 data
Storage module

-Working Voltage: 5V
-Size: 20x28mm
-Interface: SPI
-Compatible: MicroSD (TF) MicroSD card module

Although the embodiments of the present invention have been described with reference to the above and the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can implement the present invention in other specific forms without changing its technical spirit or essential features. You will understand that there is. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

100: pressure level sensor
200: variable resistance type water level sensor
300: composition of internal board and communication module
400: GPS module
500: system mounting table
600: data logger

Claims (5)

A system mount that can be installed regardless of the height of the road boundary stone,
Sensor unit attached to one side of the mounting table to detect whether or not immersion,
The housing part installed on the upper side of the mounting base,
A gateway that receives information from the sensor unit and converts the data,
Including the database server that receives and stores information from the gateway, and transmits the stored information to the situation room server installed in the local government's situation room in real time,
Simple installation type water immersion detection system, characterized in that it is possible to propagate in real time whether the installation table is inundated to the server in the control room.
In claim 1,
The sensor unit includes a pressure-type water level sensor 100 and a variable resistance type water level sensor 200,
The pressure-type water level sensor is installed in the rainwater pipe to observe the water level of the rainwater pipe,
The variable resistance type water level sensor is installed on the road surface to detect an inundation level on the road.
In claim 1,
The housing portion is provided with a tilt sensor, GPS module, communication module, power module,
The tilt sensor provides information about damage to the system mounting table,
The GPS module is a water immersion detection system that provides information on theft or departure of a system installed in a designated place. In claim 1,
In the enclosure, the gateway is performed by LoRa local wireless communication,
The gateway and the database server is a CDMA long-distance wireless communication to perform economically and stably measured data transmission, characterized in that the flooding detection system
In claim 1,
The system installation table is configured to be installed simply by fastening an anchor bolt on the road boundary stone, and it is a simple installation type water-immersion detection system that does not require a communication line or a power line connection with a wireless communication module and a battery power module.

Images