WO2022019603A1 - Snow removal operation management system using internet of things (iot) - Google Patents

Abstract

A snow removal operation management system according to various embodiments of the present invention may comprise a communication circuit, a plurality of snow removal information collecting devices, a plurality of snow removal devices, and a snow removal operation management device. The snow removal operation management device may be configured to: receive weather information and road-related information relating to positions of the plurality of snow removal information collecting devices from the plurality of snow removal information collecting devices through the communication circuit; check a road condition on the basis of the weather information and the road-related information; on the basis of the checked road condition, determine a snow removal region to be snow-removed with priority and a type and an amount of a deicing agent to be distributed onto the determined snow removal region; and through the communication circuit, transmit a control signal related to the snow removal operation including the type and the amount of the deicing agent to be distributed onto the determined snow removal region to at least one snow removal device, among the plurality of snow removal devices, which is located on the determined snow removal region.

Description

Snow removal operation management system using IOT (INTERNET OF THINGS)

Various embodiments of the present invention relate to a snow removal operation management system using the Internet of Things (IoT).

When it snows in winter, snow may accumulate or freeze on the road, which may cause vehicle accidents and pedestrian safety accidents. In order to prevent such an accident, the snow removal device may perform the operation of removing snow accumulated on the road. For example, when snowfall is expected through weather information, the snow removal apparatus may spray the snow removal agent based on the snow removal amount previously mapped to the temperature and the snow load amount to perform the snow removal operation.

The snow removal operation management system generates a snow removal operation plan based on weather information, and instructs each snow removal vehicle to perform snow removal operation on a tunnel, bridge, or road in a specific area according to the created snow removal operation plan. can be transmitted. The system for managing the snow removal may receive information on the snow removal operation status from each snow removal vehicle and monitor the snow removal operation in real time.

However, the expected weather information may be different from the actual one, and accordingly, when the snow removal operation is applied based on the snow removal amount previously mapped to the temperature and snow load, the snow removal operation may not be efficient. In other words, as it is not possible to grasp the weather information and road conditions for a wide area in real time, it may not be possible to carry out snow removal work in the snow removal area that actually requires snow removal operation, and the amount of snow removal agent to be applied to the snow removal area It may also not be appropriate.

Snow removal operation management apparatus according to various embodiments of the present invention, based on weather information and road-related information received from sensor nodes connected to each other using IoT, integrates and manages a snow removal area and snow removal apparatuses to perform a snow removal operation can do.

The snow removal operation management apparatus according to various embodiments of the present disclosure may build big data based on weather information and road-related information received from sensor nodes connected to each other using IoT. The snow removal operation management device performs deep learning using a deep neural network (DNN) based on the built big data to first spray the area to be snow-removed and the area to be snow-removed. It is possible to determine the optimal amount of snow removal agent applied.

A snow removal operation management system according to various embodiments of the present disclosure includes a communication circuit, a plurality of snow removal information collection devices, a plurality of snow removal devices, and a snow removal operation management device, wherein the snow removal operation management device includes the communication circuit Receive weather information and road-related information on the locations of the plurality of snow-removing information collecting devices from the plurality of snow-removing information collecting devices through a circuit, and confirming a road condition based on the weather information and the road-related information, , based on the identified road conditions, determine a snow removal area to preferentially perform a snow removal operation and a type and amount of a snow removal agent to be applied to the snow removal zone, and through the communication circuit, determine the determined snow removal zone Set to transmit a control signal related to the snow removal operation including the type of the snow removal agent to be sprayed on the snow and the amount of the snow removal agent to at least one snow removal apparatus located in the determined snow removal area among the plurality of snow removal apparatuses can

The snow removal operation management apparatus according to various embodiments of the present disclosure may receive weather information and road-related information from sensor nodes installed in various places in real time using IoT. The snow removal operation management apparatus may integrally and efficiently manage the snow removal operation by using the snow removal apparatus as it receives weather information and road-related information from sensor nodes connected to each other in real time.

The snow removal operation management apparatus according to various embodiments of the present disclosure may determine a priority snow removal area and an optimal amount of snow removal agent spraying based on weather information and road-related information. The snow removal operation management apparatus may perform a snow removal operation based on the optimal amount of the snow removal agent applied to the determined priority snow removal area, thereby preventing an accident that may occur due to the freezing of the road in advance.

The snow removal operation management apparatus according to various embodiments of the present disclosure may perform deep learning based on big data constructed based on weather information and road-related information to determine a priority snow removal area and an optimal amount of snow removal agent spraying. Accordingly, it is possible to perform the snow removal operation with the optimum amount of spraying the snow removal agent in the snow removal area that actually requires the snow removal operation, so that the snow removal operation can be efficient.

1 is a diagram illustrating a snow removal operation management system based on the Internet of Things (IoT), according to various embodiments of the present disclosure.

2 is a block diagram illustrating an IoT-based snow removal operation management system according to various embodiments of the present disclosure.

3 is a block diagram illustrating an apparatus for collecting snow removal information according to various embodiments of the present disclosure;

4 is a diagram illustrating a wireless sensor network provided as sensor nodes included in each of a plurality of snow removal information collecting devices are connected to each other through wireless communication, according to various embodiments of the present disclosure.

5A is a block diagram illustrating a snow removal apparatus according to various embodiments of the present disclosure;

5B is a view illustrating a snow removal apparatus, for example, a mobile snow removal apparatus and a fixed snow removal apparatus, according to various embodiments of the present disclosure;

6 is a block diagram illustrating an apparatus for managing snow removal according to various embodiments of the present disclosure;

7 is a flowchart illustrating a method of transmitting a control signal related to snow removal, according to various embodiments of the present disclosure.

8 is a diagram for describing a signal flow between devices according to various embodiments of the present disclosure;

9 is a diagram illustrating a snow removal operation status through a map, according to various embodiments of the present disclosure;

1 is a diagram 100 illustrating a snow removal operation management system based on the Internet of Things (IoT), according to various embodiments of the present disclosure.

Referring to FIG. 1 , the IoT-based snow removal operation management system includes a snow removal information collection device 110 , a snow removal device, such as a mobile snow removal device (eg, a mobile snow removal vehicle 120 ), a fixed snow removal device (eg, fixed liquid spraying). system 130 , and/or a fixed eco-friendly snow removal system 140 ).

In an embodiment, the snow removal information collecting device 110 may obtain weather information (eg, temperature, humidity, wind direction/wind speed, snowfall) and road-related information (eg, temperature and moisture on the road surface). The snow removal information collecting device 110 may include a sensor node 115 . In one embodiment, a plurality of snow removal information collecting devices 110 may be installed in a wide area, and sensor nodes 115 included in each of the installed plurality of snow removal information collecting devices are connected to each other through wireless communication to form a network. can do. As the network is formed between the sensor nodes, the snow removal information collecting apparatus 110 may monitor the snow removal status distributed over a wide area.

In an embodiment, the snow removal information collecting device 110 may acquire weather information and road-related information of a location, and transmit it to a snow removal operation management device (not shown).

In one embodiment, the snow removal device, for example, a mobile snow removal device 120 and a fixed snow removal device (eg, a fixed liquid spray system 130, a fixed type eco-friendly snow removal system 140) to perform a snow removal operation on tunnels, bridges, roads, etc. In order to perform communication with a snow removal operation management device (not shown). For example, the fixed snow removal apparatus may be installed in a habitual freezing section and/or a section difficult to respond to the initial response. Among the fixed snow removal devices, the stationary eco-friendly snow removal system 140 may include a phase change material (PCM) eco-friendly snow removal system and/or a carbon nanotube (CNT) eco-friendly snow removal system. The phase change material eco-friendly snow removal system may include a system that stores surrounding heat by absorbing or emitting a lot of heat while changing a phase without changing the temperature at a specific temperature, and then discharging it when necessary. The carbon nanotube eco-friendly snow removal system may include a method of using a nanomaterial with improved thermal conductivity, such as carbon nanotubes.

In an embodiment, at least one of the snow removal apparatuses 120 , 130 , and 140 may receive a control signal related to a snow removal operation received from a snow removal operation management apparatus (not shown). For example, the snow removal operation management device (not shown) checks the road condition based on the weather information and road-related information received from the snow removal information collection device 110 , and the snow removal to be sprayed in the snow removal and snow removal areas requiring snow removal You can decide the type of agent and the amount of snow removal agent. The control signal related to the snow removal operation received from the snow removal operation management device (not shown) may include a control signal for spraying the snow removal area with the determined type and amount of the snow removal agent to be sprayed.

In an embodiment, the at least one snow removal device 120 , 130 , and/or 140 may spray the snow removal agent in the corresponding snow removal area based on a control signal related to the snow removal operation received from the snow removal operation management device (not shown). can

2 is a block diagram 200 illustrating an IoT-based snow removal operation management system according to various embodiments of the present disclosure.

Referring to FIG. 2 , the IoT-based snow removal operation management system includes a snow removal information collection device 210 (eg, the snow removal information collection device 110 of FIG. 1 ), a snow removal device 220 (eg, a mobile snow removal vehicle) 120 ), a fixed snow removal device (eg, a fixed liquid spraying system 130 , a stationary eco-friendly snow removal system 140 ), and/or a snow removal operation management device 230 .

In an embodiment, the snow removal information collection device 210 , the snow removal device 220 , and the snow removal operation management device 230 may be communicatively connected through the communication network 240 .

According to an embodiment, the snow removal information collecting apparatus 210 may be implemented in the form of FIG. 3 to be described later, and the snow removal apparatus 220 may be implemented in the form of FIGS. 5a and 5b to be described later, and snow removal operation management The device 230 may be implemented in the form of FIG. 6 to be described later.

In one embodiment, the snow removal information collecting device 110 transmits the obtained weather information (eg, temperature, humidity, wind direction/wind speed, snowfall) and road-related information (eg, temperature and moisture on the road surface) to the communication network 240 ) may be transmitted 250 to the snow removal operation management device 230 through.

In an embodiment, the snow removal apparatus 220 may include a mobile snow removal apparatus 120 . The mobile snow removal device 120 may include a snow removal vehicle, and the fixed snow removal devices 130 and 140 may include a liquid spray system and an eco-friendly snow removal system. However, the present invention is not limited thereto.

In one embodiment, the snow removal operation management device 230 determines the snow removal area based on the weather information and road-related information received from the snow removal information collection device 210 through the communication network 240, and sprays the determined snow removal area. You can determine the amount of snow removal agent. The snow removal operation management apparatus 230 may transmit ( 255 ) a control signal related to the snow removal operation to the snow removal apparatus 220 located in the determined snow removal area. The snow removal apparatus 220 may perform a snow removal operation in a corresponding area based on a control signal related to a snow removal operation received from the snow removal operation management apparatus 230 .

In an embodiment, when the snow removal apparatus 220 is a mobile snow removal apparatus, the location information obtained from the GPS may be transmitted 260 to the snow removal operation management apparatus 230 through the communication network 240 .

3 is a block diagram 300 illustrating an apparatus for collecting snow removal information 210 according to various embodiments of the present disclosure.

Referring to FIG. 3 , the snow removal information collection device 210 (eg, the snow removal information collection device 110 of FIG. 1 ) includes a sensor unit 310 , a camera 320 , and/or a sensor node 330 (eg: sensor node 115 of FIG. 1 ).

In an embodiment, the sensor unit 310 may include a weather sensor 311 and/or a load sensor 313 . The weather sensor 311 may acquire weather information such as temperature, relative humidity, wind direction, wind speed, and/or amount of sunlight. For example, the weather sensor 311 may obtain weather information from a weather station.

In an embodiment, the road sensor 313 (or a road surface sensor) may acquire road-related information such as a road surface temperature and a road surface condition. For example, road surface conditions may include wet conditions on the road surface such as dry, wet, icy, and/or thawed.

In an embodiment, the road sensor 313 may include a non-contact infrared temperature sensor (not shown), and may acquire the temperature of the road surface using the non-contact infrared temperature sensor (not shown).

In an embodiment, the load sensor 313 may include a lidar sensor (not shown), and may measure the amount of snow by using the lidar sensor.

In an embodiment, the snow removal information collecting device 210 may include a plurality of load sensors 313 . The sensor unit 310 may transmit the acquired weather information and road-related information to the sensor node 330 .

In an embodiment, the camera 320 may acquire a photographed image, and may transmit it to the sensor node 330 .

In one embodiment, the sensor unit 310 (eg, the weather sensor 311, the road sensor 313) and the camera 320 are wired or wirelessly connected to the sensor node 330 (eg, a sensor node for snow removal). can

In an embodiment, the sensor node 330 may obtain weather information and road-related information obtained from the sensor unit 310 .

In an embodiment, the sensor node 330 may be a node having a built-in wireless communication function. A plurality of snow removal information collecting devices 110 may be installed in a wide area, and sensor nodes having a built-in wireless communication function included in each of the installed plurality of snow removal information collecting devices are connected to each other through wireless communication and configured as a wireless sensor network. can be

In one embodiment, the sensor node 330 may be powered by a constant power source, a solar panel, or a battery type.

In an embodiment, the sensor node 330 may measure whether snow is falling, the amount of vehicle traffic, and/or the moving speed of the vehicle based on the image received from the camera 320 . The sensor node 330 may transmit the weather information and road-related information obtained through the sensor unit 310 to the snow removal operation management apparatus (eg, the snow removal operation management apparatus 230 of FIG. 2 ). The sensor node 330 may transmit, to the snow removal operation management apparatus 230 , information on the moving speed of the vehicle, the amount of vehicle traffic, and/or whether there is snow, measured based on the image received from the camera 320 .

FIG. 4 is a diagram 400 illustrating a wireless sensor network provided as sensor nodes included in each of a plurality of snow removal information collecting devices are connected to each other through wireless communication, according to various embodiments of the present disclosure.

Referring to FIG. 4 , a plurality of snow removal information collection devices (eg, the snow removal information collection device 210 of FIG. 2 ) may be installed in a wide area, and a sensor node ( 435) (eg, the sensor node 330 of FIG. 3 ) may be connected to each other through wireless communication to form a network.

In an embodiment, the snow removal information collecting device 210 may be communicatively connected to a snow removal device (eg, the snow removal device 220 of FIG. 2 ) to configure a network (eg, a snow removal network). The snow removal network is a wireless network of the sensor node 425 (eg, smart node) of the snow removal device 220 and the sensor node 435 (eg, smart base) of the snow removal information collection device 210 ). and wireless sensor networks (WSN) 420 . The sensor node 435 of the snow removal information collecting device 210 is connected to the citi wifi 410, for example, the AP 415 of the city public Wi-Fi (eg, Smart Seoul Network (S-Net)), and the snow removal operation management device (eg : It is possible to communicate with the snow removal operation management device 230 of FIG. 2 . For example, the sensor node 435 of the snow removal information collecting device 210 may communicate with the snow removal operation management device 230 at a maximum of 9.6 Gbps by applying, for example, WiFi 6 . The above-described type and speed of Wi-Fi is an exemplary embodiment and is not limited thereto. As the sensor node 435 of the snow removal information collection device 210 is connected to the AP 415 of the citi wifi 410, it is possible to manage snow removal and related information in a wide area, as well as efficiently deliver a large amount of information can

In an embodiment, the snow removal information collection device 210 includes information acquired from the snow removal device 220 and information acquired through a sensor unit (eg, the sensor unit 310 of FIG. 3 ) of the snow removal information collection device 210 . may be collected and transmitted to the snow removal operation management device 230 . The snow removal information collection device 210 may receive control information for a snow removal operation from the snow removal operation management device 230 , and transmit it to the snow removal apparatus 220 . The present invention is not limited thereto, and the snow removal operation management apparatus 230 may transmit a control signal for the snow removal operation to the snow removal apparatus 220 to perform the snow removal operation.

5A is a block diagram 500 illustrating a snow removal apparatus 220 according to various embodiments.

Referring to FIG. 5A , the snow removal apparatus (eg, the snow removal apparatus 220 of FIG. 2 ) includes a communication circuit 510 , a memory 520 , a sensor unit 530 , a display 540 , and/or a sensor node 550 . ) may be included.

In an embodiment, the snow removal apparatus 220 may include a plurality of snow removal apparatuses. For example, the snow removal device 220 may include a mobile snow removal device (eg, a mobile snow removal device of FIG. 1 (eg, a mobile snow removal vehicle 120 )) and a stationary snow removal device (eg, a stationary snow removal device of FIG. 1 ) (eg, a fixed liquid phase). It may include a spraying system 130, a fixed type eco-friendly snow removal system 140).

In an embodiment, the communication circuit 510 may establish a communication channel with the snow removal operation management apparatus (eg, the snow removal operation management apparatus 230 of FIG. 2 ) and support communication through the established communication channel.

In an embodiment, the memory 520 may store weather information, snow removal operation information, and/or residual amount information of the snow removal agent. For example, the weather information may include an outside air temperature, a road surface temperature, and/or an amount of snow.

In an embodiment, when the snow removal apparatus 220 is a movable snow removal apparatus (eg, the movable snow removal apparatus 120 of FIG. 1 ), the memory 520 may further store information on the movable snow removal apparatus 120 . For example, the information of the mobile snow removal apparatus 120 may include location information obtained based on the speed of the mobile snow removal apparatus 120 and GPS (not shown).

In an embodiment, the sensor unit 530 may include a temperature/humidity sensor 531 , a load sensor 533 , and/or a lidar sensor 535 .

In an embodiment, the temperature/humidity sensor 531 may acquire the temperature and/or humidity at the current location. The load sensor 533 may measure a temperature of a road surface and a road surface condition. For example, the load sensor 533 may measure the temperature of the road surface in order to remove the snow or ice the road surface in a snowy or icy state. The road surface condition may include a wet state on the road surface such as dry, wet, icy, or thawed. The lidar sensor 535 may measure the amount of snow.

In an embodiment, the display 540 may display a priority snow removal area and an optimal amount of snow removal agent application. The display 540 may display a user interface for the snow removal operation status performed in a specific area. The display 540 may display a user interface including information related to a snow removal operation, for example, a user interface for enabling a user to set a priority snow removal area and an optimal amount of snow removal agent spraying.

In an embodiment, when the sensor node 550 receives a control signal related to a snow removal operation from the snow removal operation management device 230 , the sensor node 550 may spray the snow removal agent on the corresponding snow removal area based on the received control signal.

In one embodiment, although not shown, when the snow removal device 220 is a mobile snow removal device (eg, the mobile snow removal device of FIG. 1 ), for example, the mobile snow removal vehicle 120 , a GPS may be further included. The GPS may acquire location information of the mobile snow removal vehicle and transmit it to the sensor node 550 .

The above-described snow removal device 220, for example, a movable snow removal device 120 and a fixed snow removal device 120, for example, in relation to the fixed liquid spray system 130, various embodiments will be described in Figure 5b to be described later.

5B is a snow removal device 220, for example, a mobile snow removal device (eg, a mobile snow removal work vehicle 120) and a fixed snow removal device (eg, a fixed liquid spraying system 130) according to various embodiments. Figure 550.

Referring to FIG. 5B , the mobile snow removal device shown at reference number <560> according to an embodiment includes a mobile snow removal work vehicle (eg, the mobile snow removal device 120 of FIG. 1 ) that sprays a snow removal agent on a road section. can do.

In an embodiment, the mobile snow removal vehicle 120 may include a sensor node (eg, a smart node) 561 (eg, the sensor node 550 of FIG. 5A ). The sensor node 561 of the mobile snow removal work vehicle 120 may obtain information related to the mobile snow removal work vehicle 120 through a sensor unit (eg, the sensor unit 530 of FIG. 5A ). For example, the information related to the mobile snow removal work vehicle 120 obtained from the sensor unit 530 includes operation information 562, weather information 563, residual amount of snow removal information 564 of the mobile snow removal operation vehicle 120, and / or a snow removal agent application amount 565 may be included. For example, the driving information 562 of the mobile snow removal work vehicle 120 includes speed information of the mobile snow removal work vehicle 120 obtained through a speed sensor and the mobile snow removal work vehicle 120 obtained through GPS (not shown). Location information may be included. The weather information 563 includes temperature information obtained through a temperature/humidity sensor (eg, the temperature/humidity sensor 531 of FIG. 5A ) and a road surface obtained through a load sensor (eg, the load sensor 533 of FIG. 5A ). It may include temperature and/or snow load obtained through a lidar sensor (eg, lidar sensor 535 of FIG. 5A ). The present invention is not limited thereto, and the mobile snow removal vehicle 120 may further include a non-contact infrared temperature sensor, and may acquire a road surface temperature through the non-contact infrared temperature sensor. In an embodiment, the non-contact infrared temperature sensor and the lidar sensor 535 may be installed at the front end of the mobile snow removal vehicle 120 .

In an embodiment, the sensor node 561 of the mobile snow removal work vehicle 120 may obtain information 564 on the amount of snow removal agent remaining. For example, the snow remover may include a solid snow remover and/or a liquid snow remover. The sensor node 561 of the mobile snow removal work vehicle 120 may obtain information on the remaining amount of the solid snow removal agent using the lidar sensor 535, and may obtain information on the remaining amount of the liquid snow removal agent using a water pressure gauge. have.

In one embodiment, the sensor node 561 of the mobile snow removal operation vehicle 120 receives a control signal 566 related to a snow removal operation from a snow removal operation management device (eg, the snow removal operation management apparatus 230 of FIG. 2 ). , based on this, it is possible to spray the snow removal agent in the relevant snow removal area. For example, the control signal 566 related to the snow removal operation may include a first snow removal area and an amount of snow removal agent applied. In an embodiment, when the solid snow removal agent is sprayed, the sensor node 561 of the mobile snow removal work vehicle 120 may measure the amount of the solid snow removal agent applied based on the rotation amount (rpm) of the driving motor. When the liquid snow removal agent is sprayed, the sensor node 561 of the mobile snow removal operation vehicle 120 may measure the amount of liquid snow removal agent sprayed by using a flow meter of the nozzle.

In an embodiment, the sensor node 561 of the mobile snow removal operation vehicle 120 may control the amount of snow removal agent spraying in consideration of a road surface condition, for example, a snow removal width (eg, a lane (or lane)).

In an embodiment, the sensor node 570 of the mobile snow removal apparatus vehicle 120 may transmit the snow removal operation status being performed to the snow removal operation management apparatus 230 .

In an embodiment, the sensor node 561 of the mobile snow removal work vehicle 120 includes the obtained information related to the mobile snow removal work vehicle 120 (eg, operation information 562 of the mobile snow removal work vehicle 120 , weather information). 563 , information on the residual amount of the snow removal agent 564 , and the amount of spraying the snow removal agent 565 ) may be stored in a memory (eg, the memory 520 of FIG. 5A ).

In an embodiment, the sensor node 561 of the mobile snow removal operation vehicle 120 may display a user interface related to the snow removal operation on the display 540 . The user of the mobile snow removal operation vehicle 120 may control the snow removal operation through a user interface related to the snow removal operation displayed on the display 540 .

In one embodiment, the fixed snow removal apparatus shown by reference number <580> may include a fixed liquid spraying system (eg, the fixed liquid spraying system 130 of FIG. 1). The present invention is not limited thereto, and the fixed snow removal apparatus may include a fixed type eco-friendly snow removal system (eg, the fixed type eco-friendly snow removal system 140 of FIG. 1 ).

In an embodiment, the fixed liquid dispersion system 130 may include a sensor node (eg, a smart node) 581 (eg, the sensor node 550 of FIG. 5A ). The sensor node 581 of the fixed liquid dispersion system 130 may acquire information related to the fixed liquid dispersion system 130 through a sensor unit (eg, the sensor unit 530 of FIG. 5A ). For example, the information related to the fixed liquid spraying system 130 obtained from the sensor unit 530 may include a snow removal agent application amount 582 , weather information 583 , and/or snow removal agent residual amount information 584 . For example, the weather information 583 includes temperature information obtained through the temperature/humidity sensor 531 , the road surface temperature obtained through the load sensor 533 , and/or the amount of snow obtained through the lidar sensor 535 . can do. It is not limited thereto, and the fixed liquid dispersion system 130 may further include a non-contact infrared temperature sensor. The fixed liquid dispersion system 130 may acquire the road surface temperature through a non-contact infrared temperature sensor.

In one embodiment, the sensor node 581 of the fixed liquid spraying system 130 may obtain information on the residual amount of snow removal agent 584 , for example, information on the amount of residual amount of the liquid snow removal agent. For example, the fixed liquid dispersion system 130 may include a storage tank. Information on the remaining amount of the liquid snow removal agent stored in the storage tank may be obtained using a hydraulic pressure gauge.

In one embodiment, the sensor node 581 of the fixed liquid dispersion system 130 may communicate with the snow removal operation management device 230 . When the sensor node 581 of the fixed liquid spraying system 130 receives the control signal 585 related to the snow removal operation from the snow removal operation management device (eg, the snow removal operation management device 230 of FIG. 2 ), based on this, the liquid phase You can spray snow remover. For example, the control signal 585 related to the snow removal operation may include an amount of liquid snow removal agent applied. The fixed liquid spraying system 130 may include a nozzle, and may measure and control the spraying amount of the liquid snow removal agent through the nozzle.

In one embodiment, the fixed liquid spraying system 130 (or the fixed eco-friendly snow removal system 140) may be installed in a section in which it is difficult to respond in an initial response, such as a section where snow removal is weak and/or a section where ice is habitually generated. The section in which the fixed liquid spraying system 130 (or the fixed eco-friendly snow removal system 140) is installed is, for example, a bridge entrance/exit road, a ramp section, an overpass, an overpass, an underpass, and a slope section at the start/end point of the downtown tunnel (eg: slope of 3% or more), and/or a pass along the boundary between local governments.

6 is a block diagram 600 illustrating a snow removal operation management apparatus 230 according to various embodiments of the present disclosure.

In an embodiment, the snow removal operation management apparatus (eg, the snow removal operation management apparatus 230 of FIG. 2 ) may be a device for integrated management of the snow removal operation. The snow removal operation management device 230 may detect whether snowfall occurs, predict a road surface condition, optimize the amount of snow removal agent applied, and provide snow removal operation status information to users (eg, snow removal managers and/or citizens). have.

Referring to FIG. 6 , the snow removal operation management apparatus (eg, the snow removal operation management apparatus 230 of FIG. 2 ) includes a communication circuit 610 , a memory 620 , a display 630 , and/or a processor 640 . can do.

In an embodiment, the communication circuit 610 establishes a communication channel with a snow removal information collection device (eg, the snow removal information collection device 210 of FIG. 2 ) and/or a snow removal device (eg, the snow removal device 220 of FIG. 2 ) It can be established and support performing communication through the established communication channel. The communication circuit 610 may include a wireless communication module (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module). A corresponding communication module among these communication modules is removed through a short-distance communication network such as Bluetooth, WiFi direct, or IrDA (infrared data association) or a telecommunication network such as a cellular network, the Internet, or a computer network (eg, LAN or WAN). It may communicate with the information collection device 210 and/or the snow removal device 220 .

In one embodiment, the memory 620 may include a database 621 . The database 621 may include, for example, a weather information database 621a, a road information database 621b, and/or a snow removal device location database 621c. The weather information database 621a may include real-time weather information for a corresponding location received from each of the plurality of snow removal information collecting devices. The road information database 621b may store the width of the road, the number of lanes, and/or the direction of the road. The snow removal apparatus location database 621c may store location information received from a snow removal apparatus, for example, each of a plurality of mobile snow removal apparatuses. The snow removal apparatus location database 621c may store location information of a snow removal apparatus, for example, a plurality of fixed snow removal apparatuses.

In one embodiment, the database 621 accumulates and stores the snow removal zone determined by the processor 640 and the optimal amount of the snow removal agent to be applied to the snow removal zone database 621d and the optimal snow removal agent application amount database 621e ) may be further included.

In an embodiment, the display 630 may display the snow removal area determined under the control of the processor 640 and the optimum snow removal agent application amount based on a geographic information system for transportation (GIS-T). In an embodiment, the display 630 may display a screen regarding the snow removal operation status performed in a specific area under the control of the processor 640 .

In an embodiment, the processor 640 includes an information collection unit 641 , a road condition monitoring unit 643 , a snow removal operation determining unit 645 , a snow removal operation monitoring unit 647 , and/or a snow removal operation providing unit 649 . ) may be included.

In an embodiment, the information collection unit 641 receives the weather information and road-related information from the snow removal information collection device 210 and receives the database 621 (eg, the weather information database 621a and the road information database 621b). can be stored in The information collection unit 641 may receive the location information from the snow removal apparatus 220 and store it in the database 621 (eg, the snow removal apparatus location database 621c).

In an embodiment, the road condition monitoring unit 643 of the processor 640 includes weather information and road-related information (eg, road road conditions (eg road conditions such as icing and snow) can be monitored based on the surface condition).

In one embodiment, as a result of monitoring by the road condition monitoring unit 643 , when snowfall and icing occur on the road of the corresponding place, the snow removal operation determining unit 645 of the processor 640 preferentially performs the snow removal operation. (eg zone) can be determined. For example, the snow removal operation determining unit 645 may determine, based on the monitoring result, an area where the snowfall amount exceeds a specified value and the road surface temperature is below the specified value as a place to preferentially perform the snow removal operation. For another example, the snow removal operation determining unit 645 preferentially selects an area determined to be a vulnerable road snow removal area based on road information (eg, the width of the road, the number of lanes, the direction of the road) stored in the road information database 621b. can be determined as a place to carry out snow removal operations.

In an embodiment, the processor 640 may receive an image obtained through the camera 320 of the snow removal information collection device 210 from the snow removal information collection device 210 . The road condition monitoring unit 643 of the processor 640 may analyze the video image received from the tens of snow removal information devices 210 to determine whether snowfall or rainfall has occurred. For example, the processor 640 may divide the pixels of the video image and correct the error according to a rule selected based on the luminance and size of the divided pixels. The processor 640 may calculate a direction histogram for the stripes of each pixel, and may detect a pixel of snowfall or rainfall based on the calculated direction histogram.

In an embodiment, the processor 640 may acquire a video image from the snow removal information collecting device 210 at a specified time interval, and determine whether snowfall or rainfall occurs based on the video image acquired at a specified time interval. have.

In an embodiment, the processor 640 may analyze the video image to detect a vehicle and predict information on a traffic situation (eg, the number of vehicles passing, vehicle speed). For example, the processor 640 detects a vehicle by performing difference filtering, background subtraction, image segmentation, lamp suppression (eg, in case of night), shadow suppression (eg, in case of day), and/or contour extraction on the obtained video image can do. A parameter for detecting a vehicle may be predefined and pre-stored in the memory 620 . For example, parameters for detecting a vehicle may include virtual coil generation, line sensing parameters, thresholds, and/or night sensing areas. The processor 640 may calculate the congestion of the vehicle and the number of vehicles passing by using the parameter for detecting the vehicle. The parameter may be set manually by the user, or may be set automatically.

In an embodiment, the road condition monitoring unit 643 may calculate a road surface temperature prediction model based on a heat-balance equation, and deep learning the time series data calculated from the road surface temperature prediction model. can predict the condition of the road surface. For example, the road condition monitoring unit 643 may calculate an energy flow on the road surface and vertical heat transfer between the road surface and the atmosphere based on the energy balance law. For example, the road condition monitoring unit 643 may include meteorological information (eg, temperature, humidity, wind direction/speed, snowfall) and road-related information (eg, temperature and moisture on the road surface) obtained from the snow removal information collecting device 210 . ) can be applied to the energy balance law model to calculate a numerical solution. The road condition monitoring unit 643 may predict a road condition, for example, an atmospheric temperature, a road surface temperature, and/or a road condition through a road surface condition prediction model based on the energy balance equation.

In one embodiment, the snow removal operation determination unit 645 of the processor 640 is a big snow removal operation accumulated in the database 621 (eg, the snow removal area database 621d and the optimal snow removal agent application amount database 621e). By analyzing big data in a deep learning method, it is possible to determine a snow removal area first

In an embodiment, the snow removal operation determining unit 645 may determine an optimal amount of the snow removal agent to be sprayed on a place (eg, an area) to perform the determined snow removal operation. For example, the snow removal operation determining unit 645 may determine the optimal amount of spraying the snow removal agent by calculating the heat transfer equation as a governing equation. The snow removal operation determining unit 645 may calculate the optimal amount of snow removal by using the snow removal agent to melt the snow using the heat transfer equation following the energy flow law as the governing equation. Sensing information that can be substituted into the heat transfer equation includes external conditions such as weather conditions (eg, temperature, relative humidity, wind direction, wind speed, and/or sunlight), road surface conditions (eg, road surface temperature, road surface function state), and snow load. may include The snow removal operation determining unit 645 may determine the amount of snow removal agent sprayed according to the target snow removal time and performance by substituting an external condition into the heat transfer equation. The heat transfer equation is a deterministic method using a functional formula, and the amount of snow removal can be calculated by solving one equation.

In another embodiment, the snow removal operation determining unit 645 may determine the amount of snow removal by using deep learning for an input value and a target value (eg, a snow removal amount). For example, the snow removal operation determining unit 645 may build big data based on information obtained from the snow removal information collection device 210 and the snow removal device 220 . Deep learning can be performed using a deep neural network (DNN) based on information built with big data. The input value may include a weather condition, a road surface condition, and an amount of snow required for solving the heat transfer equation, and the target value may include an amount of snow removal agent applied. Since the amount of learning increases as the input value and the target value are continuously accumulated, the accuracy of the amount of snow removal can be improved. If the amount of spraying of the snow remover over time is expressed as a time series value, it may also be possible to predict the amount of spraying of the snow remover.

For example, a method of constructing big data may include bare pavement status (BPS) and bare pavement regain time (BPRT). For example, the BPS may mean a ratio of an area in which snow is completely removed by spraying a snow remover with respect to a specific road area. The snow removal operation determining unit 645 may take pictures over time after spraying the snow removal agent, and calculate the snowmelt area compared to the overall area through image analysis. BPRT can be defined as the time elapsed from spraying the snow removal agent on a specific road area until the percentage of the area completely removed from snow reaches 80%. It is possible to measure the elapsed time until the BPS reaches 80% by shooting a video after spraying the snow remover. The snow removal operation determining unit 645 may build big data using the above-described BPS and BPRT, and determine the amount of snow removal agent spraying based thereon.

In an embodiment, the snow removal operation determining unit 645 may determine the priority snow removal area based on the optimal amount of snow removal and the geographic traffic information system. For example, the optimal snow removal agent application amount may be determined based on weather information, road-related information, and/or snow load amount. Geographic information on the city's traffic network may be stored in the memory 620 in advance as a traffic geographic information system. For example, the city's transportation network may include the shape of the road network, the number of lanes, the amount of traffic, the type of road pavement, the direction, the amount of sunlight, and/or maintenance information. The snow removal operation determination unit 645 may determine the priority snow removal area through the optimal amount of snow removal and network analysis of the transportation network of the transportation geographic information system. Network analysis can mean calculating the arrival time based on the road network, and functions such as the vehicle's route, the distance from the current point to the nearest facility, the service area of a specific building, route analysis of multiple vehicles, and traffic volume estimation. can provide For example, the GIS may consist of a transportation network, flows, topographic information, and/or land use patterns. The GIS may analyze and visualize traffic networks, flows, topographic information, and/or land use information. The data model for the GIS may consist of vector data of a road network and raster data of a grid for terrain. In order to determine a snow removal zone, vector data for a road network of a corresponding city (eg, Seoul) may be pre-stored in the memory 620 . In the vector data, the ID and length of each shape can be defined in advance, and the area, width, and characteristics of each shape can be automatically calculated or separately input based on this. Network analysis may include turning conditions at intersections. The snow removal operation determining unit 645 may determine the priority snow removal area by network analysis of attribute information (eg, length, driving speed, and/or intersection rotation restriction) defined for each intersection and road.

In an embodiment, the processor 640 may transmit a control signal for performing a snow removal operation to at least one snow removal apparatus located in the snow removal area determined by the snow removal operation determination unit 645 . The processor 640 may also transmit the determined optimal amount of spraying the snow remover together with the control signal.

In an embodiment, the snow removal operation monitoring unit 647 of the processor 640 may monitor the snow removal operation performed by at least one snow removal apparatus. For example, the processor 640 may receive the snow removal operation state status information performed by the snow removal device 220 from the snow removal information collecting device 210, and based on this, the operation status of the snow removal operation site may be monitored in real time. .

In one embodiment, the processor 640 performs monitoring by the snow removal operation monitoring unit 647 , and adjusts the snow removal operation of the snow removal apparatus based on weather information and road-related information received from the snow removal information collection device 210 . can For example, the processor 640 may variably adjust a liquid spraying amount, a spraying distance, a spraying method, and a spraying time of the snow removal apparatus.

In an embodiment, the snow removal operation providing unit 649 of the processor 640 may provide information related to the snow removal operation based on information obtained from the snow removal information collecting device 210 and/or the snow removal apparatus 220 . . For example, the snow removal operation providing unit 649 of the processor 640 may visualize the snow removal status information and display it on the display 630 . The snow removal operation providing unit 649 of the processor 640 may provide information on the snow removal status on a web-based basis. As the snow removal status information is visualized and displayed on the display 630 and/or provided on a web-based basis, the snow removal manager and users using the web can check the snow removal operation status and traffic information in real time. For example, the snow removal status information provided by visualization may further include maintenance area selection, precipitation warning for each road type, map display information selection, radar sensor-based air temperature information, point and area display information, and/or observation and prediction information. can

7 is a flowchart 700 for explaining a method of transmitting a control signal related to snow removal, according to various embodiments.

Referring to FIG. 7 , the snow removal operation management device (eg, the snow removal operation management device 230 of FIG. 2 ) receives weather information from the snow removal information collection device (eg, the snow removal information collection device 210 of FIG. 2 ) in operation 710 ). and road-related information. For example, the weather information may include temperature, relative humidity, wind direction, wind speed, and/or amount of sunlight, and the road-related information may include a temperature of a road surface and a road surface condition (eg, a wet state of the road surface).

In an embodiment, the snow removal operation management apparatus 230 may check a road condition (eg, dryness, icing, thawing, snow load) based on weather information and road-related information in operation 720 .

In an embodiment, in operation 730 , the snow removal operation management apparatus 230 may determine a snow removal area to perform a snow removal operation and an amount of a snow removal agent to be sprayed on the snow removal area based on the identified road condition. For example, the snow removal operation management apparatus 230 may determine an area where the snowfall amount exceeds a specified value and the temperature of the road surface is below the specified value as a place to preferentially perform the snow removal operation, based on the checked road condition. As another example, the snow removal operation management device 230 is based on the road information (eg, the width of the road, the number of lanes, the direction of the road) stored in the road information database (eg, the road information database 621b of FIG. 6 ). An area judged to be an area vulnerable to snow removal on the road may be determined as a place to perform a snow removal operation with priority. As another example, the snow removal operation management device 230 includes big data (eg, a snow removal area database 621d) and an optimal snow removal agent application amount database 621e constructed based on information obtained from the snow removal information collection device 210 . )), a deep neural network (DNN) may be used to perform deep learning to determine the snow removal area and the amount of the snow removal agent to be applied to the snow removal area.

In various embodiments, although not shown, the snow removal operation management apparatus 230 may further determine the type of the snow removal agent to be sprayed based on road-related information. For example, road-related information may include properties of the road, such as erosion-prone roads, hills, tunnels, and/or intersections. However, the present invention is not limited thereto. In an embodiment, the snow removal operation management apparatus 230 may determine the type of snow removal agent to be sprayed based on road-related information, for example, whether the road is a corrosive road. For example, when it is determined that the snow removal operation management device 230 performs a snow removal operation on a road where corrosion may occur, for example, a chlorinated snow removal agent may be excluded as a snow removal agent to be sprayed in consideration of this. As another example, when it is determined that the snow removal operation is to be performed on the uphill section, the snow removal operation management apparatus 230 may determine the snow removal agent to spray sand so as not to slip on the uphill road in consideration of this.

In various embodiments, although not shown, the snow removal operation management apparatus 230 may further determine a snow removal operation to be performed by the snow removal apparatus 220 . Snow removal operations may include push snow removal, blower snow removal, and/or transport snow removal.

In an embodiment, in operation 740 , the snow removal operation management apparatus 230 may transmit a control signal related to the snow removal operation to at least one snow removal apparatus located in the snow removal area.

In one embodiment, the snow removal operation management device 230 transmits the determined amount of the snow removal agent to be sprayed to the snow removal apparatus, and then displays a screen for the snow removal operation status performed in a specific area (eg, the display 630 of FIG. 6 ) )) can be indicated.

In one embodiment, although not shown, the snow removal operation management device 230 monitors the snow removal operation status, and adjusts the snow removal operation of the snow removal apparatus based on weather information and road-related information received from the snow removal information collection device 210 . can

8 is a diagram 800 for explaining a signal flow between devices according to various embodiments of the present disclosure.

Referring to FIG. 8 , the snow removal information collection apparatus (eg, the snow removal information collection apparatus 210 of FIG. 2 ) may acquire weather information and road-related information in operation 810 . The snow removal information collecting device 210 may transmit weather information and road-related information to the snow removal operation management apparatus (eg, the snow removal operation management apparatus 230 of FIG. 2 ) in operation 820 .

In an embodiment, the snow removal operation management device 230 determines, in operation 830 , the amount of the snow removal agent to be sprayed on the snow removal area and the snow removal zone based on the weather information and road-related information obtained from the snow removal information collection device 210 . can For example, the snow removal operation management device 230 checks the road conditions (eg, dryness, icing, thawing, snow load) based on weather information and road-related information, and based on this, the snow removal area and the snow removal area to perform the snow removal operation. It is possible to determine the amount of snow removal agent to be sprayed.

In an embodiment, the snow removal operation management apparatus 230 may transmit the determined amount of the snow removal agent to the snow removal apparatus located in the determined snow removal area in operation 840 .

In an embodiment, the snow removal apparatus 220 receiving the amount of the snow removal agent may spray the snow removal agent based on the received amount of the snow removal agent in operation 850 .

In an embodiment, although not shown, the snow removal apparatus 220 may obtain location information of the snow removal apparatus 220 . In operation 830 , the snow removal operation management apparatus 230 may further consider the location information of the snow removal apparatus 220 received from the snow removal apparatus 220 to first determine the snow removal area and the amount of the snow removal agent to be sprayed in the snow removal area.

9 is a view 900 illustrating a snow removal operation status through a map, according to various embodiments of the present disclosure.

Referring to FIG. 9 , the snow removal operation management device (eg, the snow removal operation management device 230 of FIG. 2 ) checks the road condition based on the weather information and road-related information received from the snow removal information collection device 210 , Based on this, it is possible to determine the snow removal area in which the snow removal operation is to be performed and the amount of the snow removal agent to be applied to the snow removal area. The snow removal operation management apparatus 230 may transmit a control signal related to the snow removal operation to at least one snow removal apparatus located in the snow removal area.

In an embodiment, the snow removal operation management device 230 transmits the determined amount of the snow removal agent to the snow removal apparatus, and then displays a screen for the snow removal operation status 910 performed in a specific area (eg, the display of FIG. 630)) can be indicated. For example, the screen for the snow removal operation status 910 may include a route and a snow removal operation schedule of a snow removal device, for example, a mobile snow removal vehicle (eg, the mobile snow removal vehicle 120 of FIG. 1 ). The present invention is not limited thereto, and the screen for the snow removal operation status 910 may further display snow amount information, road surface temperature information, traffic amount information, and/or road shape.

In an embodiment, as the screen for the snow removal operation status 910 is displayed, the user of the snow removal operation management apparatus 230 may monitor the current snow removal operation status 910 performed by at least one snow removal apparatus in real time.

Claims (15)

1. In the snow removal operation management system,

   communication circuit;

   a plurality of snow removal information collecting devices;

   a plurality of snow removal devices; and

   a snow removal operation management device;

   The snow removal operation management device,

   Receiving, through the communication circuit, weather information and road-related information on the locations of the plurality of snow removal information collection devices from the plurality of snow removal information collection devices, from the plurality of snow removal information collection devices through the communication circuit,

   Check the road condition based on the weather information and the road-related information,

   based on the identified road conditions, determine a snow removal area to preferentially perform a snow removal operation, and a type and amount of snow removal agent to be sprayed on the snow removal area; and

   Through the communication circuit, a control signal related to the snow removal operation including the type and amount of the snow removal agent to be sprayed on the snow removal area and the determined snow removal area, the plurality of snow removal apparatuses through the communication circuit A snow removal operation management system configured to transmit to at least one snow removal apparatus located in the determined snow removal area among them.
2. The method of claim 1,

   Each of the plurality of snow removal information collecting devices includes a sensor node,

   A sensor node included in each of the plurality of snow removal information collecting devices is configured to be connected to the plurality of snow removal devices to form a wireless sensor network.
3. The method of claim 1,

   Each of the plurality of snow removal information collecting devices further comprises a camera,

   The plurality of snow removal information collecting devices,

   Measuring at least one of whether snowfall, the amount of vehicle traffic, and/or the moving speed of the vehicle based on the image obtained through the camera, and

   The snow removal operation management system is configured to transmit information on at least one of the measured moving speed of the vehicle, the amount of traffic of the vehicle, and/or whether the snow falls or not, to the snow removal operation management device.
4. The method of claim 1,

   The plurality of snow removal apparatuses, a snow removal operation management system including a movable snow removal apparatus and a fixed snow removal apparatus.
5. 5. The method of claim 4,

   The mobile snow removal device further comprises a speed sensor and / or GPS,

   The mobile snow removal device,

   A snow removal operation management system configured to transmit operation information including speed information of the mobile snow removal apparatus acquired through the speed sensor and location information of the mobile snow removal apparatus acquired via the GPS to the snow removal operation management apparatus.
6. The method of claim 1,

   The at least one snow removal device comprises a display,

   The at least one snow removal device comprises:

   A snow removal operation management system configured to display a user interface for a control signal related to the snow removal operation received from the snow removal operation management device on the display.
7. 7. The method of claim 6,

   The at least one snow removal device comprises:

   A snow removal operation management system configured to display a user interface capable of adjusting at least one of the snow removal zone and/or the amount of the snow removal agent to be sprayed on the display.
8. The method of claim 1,

   The snow removal operation management device,

   A snow removal operation management system configured to further determine a type of snow removal agent to be sprayed and/or a snow removal operation to be performed in the snow removal area in which the snow removal operation is to be performed preferentially, based on the identified road condition.
9. The method of claim 1,

   The snow removal operation management device further comprises a memory,

   The snow removal operation management device,

   A snow removal operation management system configured to store, in the memory, a type and amount of a snow removal agent to be sprayed on a snow removal area in which the snow removal operation is to be performed preferentially in the snow removal area.
10. 10. The method of claim 9,

    The snow removal operation management device,

    The snow removal zone stored in the memory and the type and amount of the snow removal agent to be sprayed on the snow removal zone are built as big data, and the big data is used in a deep learning method. A snow removal operation management system configured to analyze the snow removal area and determine the type and amount of the snow removal agent to be sprayed on the snow removal zone.
11. 11. The method of claim 10,

    The snow removal operation management device,

    A snow removal operation management system configured to store the weather information and the road-related information received from the plurality of snow removal information collecting devices in the memory.
12. The method of claim 1,

    The snow removal operation management device,

    Monitoring the snow removal operation of the at least one snow removal device, the snow removal operation status of the at least one snow removal device, weather information and road-related information received from the at least one snow removal information collecting device located in the snow removal area A snow removal operation management system set to adjust the snow removal zone and the amount of snow removal agent to be sprayed on the snow removal zone based on the snow removal zone.
13. The method of claim 1,

    The snow removal operation management device further comprises a display,

    The snow removal operation management device,

    A snow removal operation management system configured to display the snow removal zone and the amount of snow removal agent to be sprayed on the snow removal zone on the display as a map through a geographic information system.
14. The method of claim 1,

    The snow removal operation management device,

    based on the identified road condition, determining an area in which the snow load exceeds a specified value and the temperature of the road is below the specified value as the snow-removing area in which the snow removal operation is to be performed preferentially; or

    A snow removal operation management system configured to determine an area identified as a vulnerable road snow removal area as a snow removal area in which the snow removal operation is to be performed preferentially, based on the identified road condition and road attributes.
15. 15. The method of claim 14,

    The property of the road is a snow removal operation management system including at least one of a corrosion-probable road, an uphill road, a tunnel, or an intersection.

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