KR102312329B1 - REMOTE MONITORING SYSTEM OF GROUNDWATER WELL CAPABLE OF DISABLILITY DIAGNOSIS AND MAINTENANCE BY IoT REMOTE CONTROL - Google Patents

Abstract

Disclosed is a remote monitoring system for an underground water well that can diagnose and maintain failures through IoT remote control. The remote monitoring system according to the present invention is a flow meter installed in a groundwater well to measure the flow data of groundwater, is connected to the flow meter, receives the flow data by wire/wireless, stores the flow data at regular intervals, and stores the flow data by a preset repetition cycle. A data logger for transmitting flow data to the server, a battery for supplying power to the flow meter and the data logger, and a power supply unit for measuring the remaining amount data of the battery and transmitting it to the server according to a preset repetition period and from the server and an integrated control unit for receiving and monitoring flow data and the remaining battery level data, wherein the integrated control unit remotely transmits the flow rate data and the remaining battery level data to a user's mobile device.

Description

A remote monitoring system for an underground water well that can diagnose and maintain failures through IoT remote control

The present invention relates to a remote monitoring system for a groundwater well that can diagnose and maintain failures through IoT remote control. It relates to a remote monitoring system for underground water wells that can diagnose and maintain failures through IoT remote control.

Groundwater is water that is present in the space between the ground and the bedrock as rain and snow seep into the ground.

In particular, Jeju Island does not have many reservoirs due to the nature of its volcanic topography, and most of the rain and snow flows underground, so the rate of using groundwater by drilling wells is very high. Accordingly, Jeju Island has its own groundwater management legal system and system in accordance with the Jeju Special Self-Governing Province Special Act and the Basic Ordinance on Groundwater Management, and has been charging the price of raw water for groundwater use since the 1990s. Groundwater Groundwater raw water charges are levied on those who have obtained permission to use groundwater and those who use hot springs with permission to use hot springs.

Currently, a flow rate monitoring system has been established in Jeju Island to charge the raw water price for groundwater wells, and the number of wells to which this system is applied corresponds to more than 4,000 wells. Considering the importance of water management in the future, it is expected that raw water charges will be imposed on groundwater not only in Jeju Island but also inland, and it is expected to expand to more than 160,000 wells nationwide.

In the well, a flow meter and a data logger for transmitting flow data are installed in order to measure and manage the flow rate of groundwater, but the data logger uses a WCDMA modem to set an excessive monthly communication fee, so unnecessary costs are wasted.

In addition, in the case of groundwater wells, it is difficult to charge the raw water price in this case because it is supplied from an internal power source rather than receiving power from the surroundings, so that flow data cannot be transmitted when power is consumed.

In addition, in the event of an error in measurement data such as a failure of a flowmeter, remote management is impossible due to a problem of one-way communication, so a manpower must visit the relevant well to conduct inspection.

Patent Document 1: Republic of Korea Patent Publication No. 10-0944043

The present invention is to solve the above problems, and an object of the present invention is to enable remote monitoring of the groundwater well through flow data through a data logger that is installed in the groundwater well and transmits related data, and a flow meter through two-way communication. And to provide an IoT-based groundwater well remote monitoring system that can remotely check whether an error has occurred in the data logger through a connected network and control them remotely when an error occurs to quickly respond to the error.

According to an embodiment of the present invention for solving the above problem, a remote monitoring system for a groundwater well that can diagnose and maintain a failure through IoT remote control is provided. The remote monitoring system is installed in a groundwater well to measure the flow data of groundwater, is connected to the flow meter, receives the flow data by wire/wireless, stores the flow data at regular intervals, and stores the flow data by a preset repetition cycle to the server a data logger that transmits to a power supply unit, comprising a battery for supplying power to the flow meter and the data logger, and a power supply unit that measures the remaining amount data of the battery and transmits it to the server according to a preset repetition period and the flow data and the data from the server and an integrated control unit for receiving and monitoring the remaining battery level data, wherein the integrated control unit remotely transmits the flow rate data and the remaining battery level data to a user's mobile device.

In one embodiment of the present invention, the data logger provides an IoT-based groundwater well remote monitoring system, characterized in that bidirectional communication with the integrated control unit including the NB-IoT modem.

In an embodiment of the present invention, the integrated control unit generates a battery replacement notification when the remaining battery data is less than 5%, and when the received flow data is measured to be more than 50% of the average value, the flow data is measured IoT-based groundwater well remote monitoring system, characterized in that it generates an error notification, automatically transmits a reset signal to the data logger, and transmits the battery replacement notification and the measurement error notification to the user's mobile device provides

According to the present invention, it is possible to determine whether a device is in error at a remote location through two-way communication with the data logger and the integrated control unit, and to improve the device error by resetting the device in which the error is determined. This eliminates the need to visit, inspect, and manage devices directly, improving user convenience and enabling quick response to errors.

Furthermore, according to the present invention, it is possible to check the remaining amount of power for each groundwater well in real time, so that the inspection by the user is regularized, thereby improving the convenience of management.

In addition, according to the present invention, it is possible to reduce costs by optimizing the modem used for the data logger for the use of underground water purification, thereby reducing unnecessary monthly communication charges.

1 illustrates a groundwater well remote monitoring system capable of fault diagnosis and maintenance through IoT remote control according to an embodiment of the present invention.
2 is a diagram illustrating the installation of a data logger and a flow meter in a groundwater well of the underground well remote monitoring system according to an embodiment of the present invention.
Figure 3 shows a circuit block diagram of the groundwater well remote monitoring system according to an embodiment of the present invention.

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

Advantages and features of the present invention, and a method for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments published below, but may be implemented in various different forms, only these embodiments make the publication of the present invention complete, and common knowledge in the technical field to which the present invention pertains It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used with the meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly defined in particular. The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. As used herein, the singular also includes the plural unless specifically stated otherwise in the phrase.

Also, as used herein, the terms encompass and/or comprising are intended to specify the presence of the recited shapes, numbers, steps, members, elements, and or groups thereof, and not It is not intended to exclude the presence or addition of other shapes, numbers, movements, members, elements and/or groups.

In addition, a structure or shape disposed adjacent to another shape may have a portion that overlaps or is disposed below the adjacent shape.

Relative terms such as below, above, above, below, below, horizontal or vertical are used herein as shown in the drawings, It may be used to describe the relationship that one component, layer, or region has with another component, layer, or region. These terms encompass not only the orientation indicated in the drawings, but also other orientations of the device.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention are described with reference to cross-sectional views schematically illustrating ideal embodiments (and intermediate structures) of the present invention. In these drawings, for example, the size and shape of the members may be exaggerated for convenience and clarity of description, and in actual implementation, variations of the illustrated shape may be expected. Accordingly, embodiments of the present invention are not limited to the specific shape of the region shown herein.

1 illustrates a groundwater well remote monitoring system capable of fault diagnosis and maintenance through IoT remote control according to an embodiment of the present invention. 2 is a diagram illustrating the installation of a data logger and a flow meter in an underground well of the underground well remote monitoring system according to an embodiment of the present invention. Figure 3 shows a circuit block diagram of the groundwater well remote monitoring system according to an embodiment of the present invention.

The groundwater well remote monitoring system capable of diagnosing and maintaining failures through IoT remote control according to an embodiment of the present invention includes a flow meter, a data logger, a power supply unit, and an integrated control unit.

The flow meter is installed in the groundwater well to measure the flow data of the groundwater.

The flowmeter may be an electronic flowmeter or a mechanical flowmeter, but is not limited thereto, and is not limited thereto as long as it can measure the flow rate of groundwater in a groundwater well.

The flow meter may further include any one or more selected from the group consisting of a water quality measurement sensor and a pipe pressure sensor.

The groundwater well remote monitoring system according to an embodiment of the present invention is not only for securing the flow rate data of the groundwater well, but also measures the water quality of the groundwater, the pressure in the well, etc. through various sensors installed in the flowmeter, so that the level of contamination of the groundwater Changes in pressure in the well can be detected. For example, the water quality measuring sensor may be installed by setting appropriate factors to measure, such as Ph, TDS, DO of groundwater in a well.

The data logger is connected to the flow meter to receive the flow data by wire/wireless, store the data at regular intervals, and transmit the flow data to the server according to a preset repetition cycle.

The data logger may be connected to the flow meter through wired or wireless communication, and the flow meter transmits flow data to the data logger.

The data logger includes an NB-IoT modem for bidirectional communication with the integrated control unit. NB-IoT is a low-power wide-area communication standard technology that efficiently provides LTE-based narrowband Internet of Things, and can minimize data logger power consumption by using a low-power modem. In addition, when only the flow data of the groundwater well is transmitted, the data transmission speed does not need to be fast because the amount of data consumed is relatively small. Accordingly, the NB-IoT modem of the data logger may have a frequency of 180 KHz and a data transmission rate of 27 kbps or less.

Therefore, the data logger is a modem used for communication, and it is possible to transmit data and images, and it is possible to transmit data only, and the communication fee is low, out of the way of using the WCDMA modem in the past, which cost about 5,000 won per location. By adopting NB-IoT, which is cheap at about KRW 350 per unit, it is possible to reduce costs by reducing unnecessary monthly communication charges by optimizing for use in underground water wells.

The data logger includes a communication unit, wherein the communication unit connects the flow meter and a predetermined communication channel based on a protocol stack defined in the communication network, and transmits and receives flow information using a communication protocol defined in a communication program provided in the flow meter. will do

For example, the communication unit may be connected to the flowmeter in an RS-232 or I2C method, but is not limited thereto, and the Wi-Fi method, Zigbee method, Bluetooth method, IEEE802.15.4, P1415.5, 3G, 4G, LTE, LTEA method, etc. of various wired and wireless communication methods may be applied.

The communication unit may include communication ports (ie, RS-232 port, I2C port), as well as sensor input/output ports and a USB input/output port.

The power supply unit includes a battery for supplying power to the flow meter and the data logger, and measures the remaining data of the battery and transmits it to the server according to a preset repetition period.

For example, the battery of the power supply may be built in the data logger.

The power supply unit reduces power consumption by switching to a sleep mode in a standby state according to a preset repetition period for transmitting the flow rate data and the remaining amount data to the server.

The battery of the power supply unit may be a rechargeable battery, and is connected to any one or more solar devices of a solar panel or a solar panel installed on the ground around the groundwater well to supply power to the battery, You can charge the battery.

The integrated control unit receives and monitors the flow rate data and the remaining battery data data from the server.

The integrated control unit generates a battery replacement notification when the remaining battery amount data is less than 5%. According to the replacement notification, the user performs management such as replacing the battery in the relevant groundwater well.

For example, the integrated control unit resets the power supply unit when the battery consumption data sharply drops only on that day compared to the average battery capacity data for the previous 30 days, and even after that, the battery remaining data is less than 5%. In this case, the battery of the relevant groundwater well can be managed.

Accordingly, the integrated control unit can continuously monitor the remaining amounts of batteries in a plurality of groundwater wells, and when a battery malfunction occurs, it is possible to remotely reset the batteries to manage the batteries.

When the received flow data is measured by more than 50% of the average value, the integrated control unit generates a flow data measurement error notification and automatically transmits a reset signal to the data logger.

For example, the integrated control unit resets the data logger when the flow rate increases sharply only on that day compared to the average flow rate data for the previous 30 days. A management person can be dispatched to check whether the well is leaking.

Therefore, it is possible to continuously monitor the status and flow rate of the flowmeters of the plurality of groundwater wells in the integrated control unit, and when an abnormality of the flowmeter occurs, it is possible to remotely reset the flowmeters to manage the flowmeters.

When the battery replacement notification or flow data measurement error notification occurs, the integrated control unit may deliver a notification through a text notification such as SMS to a mobile terminal of a user, for example, an administrator, a notification of an application installed in the terminal, and the like.

That is, the battery replacement notification and the measurement error notification are transmitted to the user's mobile device so that the user can directly check it through an application in the mobile device, and the flowmeter can be managed remotely through the operation of the application.

Therefore, through two-way communication with the data logger and the integrated control unit through the groundwater well remote monitoring system according to an embodiment of the present invention, it is determined whether there is an error in the device at a remote location, and the error of the device is reset by resetting the device in which the error is determined. can be improved This eliminates the need to visit, inspect, and manage devices directly, improving user convenience and enabling quick response to errors.

In addition, according to the present invention, it is possible to reduce costs by optimizing the modem used for the data logger for the use of underground water purification, thereby reducing unnecessary monthly communication charges.

In addition, since the remaining amount of power for each groundwater well can be checked in real time, the user's inspection is regularized, thereby improving the convenience of management. In addition, there is an effect that can minimize groundwater leakage by immediately detecting the occurrence of groundwater leakage in the well.

In the foregoing, exemplary embodiments of the present invention have been described, but the present invention is not limited thereto, and those of ordinary skill in the art will fall within the scope and concept of the following claims. It will be understood that various changes and modifications are possible.

Claims (3)

a flow meter installed in a groundwater well to measure flow data of groundwater;
a data logger connected to the flow meter to receive the flow data by wire/wireless, store the flow data at regular intervals, and transmit the flow data to the server according to a preset repetition cycle;
a power supply unit including a battery for supplying power to the flow meter and the data logger, measuring the remaining amount data of the battery and transmitting it to the server according to a preset repetition period; and
An integrated control unit for receiving and monitoring the flow data and the remaining amount data of the battery from the server,
The integrated control unit remotely transmits the flow data and the remaining amount data of the battery to the user's mobile device,
The data logger includes an IoT modem for bidirectional communication with the integrated control unit,
The integrated control unit,
When an abnormality occurs in the battery or the remaining data of the battery is less than 5%, a battery replacement notification is generated, and the power supply is reset,
When the received flow data exceeds the average value by 50% or more, a flow data measurement error notification is generated, and a reset signal is automatically transmitted to the data logger,
In order to improve the convenience of the user and to dispatch the user or manager to the field only in the event of an actual error,
Even after resetting the power supply or the data logger, when the remaining battery data is less than 5% or when the flow data is 50% or more than the average value, the battery replacement notification and the measurement error notification are transmitted to the user's mobile device A remote monitoring system for underground water wells that can diagnose and maintain failures through IoT remote control. delete delete

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