KR20220067755A - Snow detection system - Google Patents

Abstract

The present invention relates to a snowfall detection system. At this time, the snowfall detection system complexly calculates movement detection information of an inflow into a measurement room, inflow detection information seated on the floor of the measurement room, and temperature and humidity sensor information so as to be able to detect reliable and quantitative snowfall information in the field. In particular, the snowfall detection system includes a main body (10), a movement detection sensor unit (20), a floor detection sensor unit (30), a cleaning unit (40), and a control module (50) as main components so that an internal environment of the measurement room is created similar to road surface conditions sprayed with salt water for snow removal by an automatic snow removal unit, thereby capable of accurately controlling an intermittent operation timing of the automatic snow removal unit according to continuous snowfall.

Description

Snow detection system {Snow detection system}

The present invention relates to a snowfall detection system, and more specifically, by calculating the movement detection information of the inflow into the measurement room, the detection information of the inflow seated on the floor of the measurement room, and the temperature and humidity sensor information in a complex manner, reliability in the field and quantitative snowfall information can be detected. In particular, since the internal environment of the measurement room is created similar to the road surface condition where salt water for snow removal is sprayed by the automatic snow removal unit, the intermittent operation timing of the automatic snow removal unit according to continuous snowfall is precisely controlled It relates to a snowfall detection system that can do this.

Typically, snow load is the amount of snow piled up on the ground, and it is expressed in centimeters (cm) by measuring the depth with a red design or measuring it with an ultrasonic snow depth meter. And in the method of measuring the amount of snow, the snow plate is installed horizontally so that the surface of the plate and the ground are equal, and the depth of the snow accumulated thereon is measured with a ruler.

However, snow cover, which accounts for most of winter, leads to road icing and is directly linked to traffic accidents, so snow removal must be carried out at an appropriate time in response to the amount of snowfall. Accordingly, it can be said that the need for unmanned and automated observation facilities is very high, and various types of automatic design are being developed for unmanned and automated snow observation facilities.

Accordingly, in Patent Registration No. 10-1487745 disclosed in the prior art, a light source irradiating light to take an image; and a camera that receives an incident light by the light source to capture an image of snow covered; and vertically moving the light source and the camera It includes: a moving part; and a body part with an open upper part surrounding the light source, the camera and the moving part; and a control part calculating the amount of snow from the image taken by the camera; ; A configuration including a fan installed on the side of the case and blown away foreign substances in the case; and a ventilation hole for sending foreign substances to the outside by using the wind of the fan has been previously proposed.

However, in the prior art, the light source and the camera move vertically from the top to the bottom until snow is detected to measure the amount of snow. As a result, dust accumulates on the lens and malfunctions occur frequently. Also, it is expensive due to the camera, computer hardware that analyzes it, and software equipped with an OS, which is expensive and sometimes causes errors because it cannot distinguish between snow and rain. In particular, repeated operation was impossible during continuous snowfall, so the reliability was not secured when used as data for determining the re-operation of a snow removal device including a salt spray device or a road ice-melting wire.

Accordingly, the present invention was conceived to solve the above-mentioned problems, and complexly calculates movement detection information of inflows flowing into the measurement room, detection information of inflows seated on the floor of the measurement room, and temperature and humidity sensor information. reliable and quantitative snowfall information can be detected from An object of the present invention is to provide a snowfall detection system that can be accurately controlled.

In order to achieve this object, a feature of the present invention is to form a measurement chamber 11 with an open upper part by the side plate part 12 and the bottom plate part 14, and among the temperature sensor 16 and the humidity sensor 18 a body 10 provided with at least one; a movement detection sensor unit 20 installed on the side plate unit 12 and provided to detect the movement of an influent flowing into the measurement chamber 11; a floor detection sensor unit 30 installed on the bottom plate unit 14 and provided to detect an inflow material seated on the inner floor of the measurement room 11; a cleaning unit 40 installed on the main body 10 to clean the surface of the side plate part 12 and the bottom plate part 14; and any one or more of the temperature sensor 16 detection information, the humidity sensor 18 detection information, the inflow detection information through the movement detection sensor unit 20, and the inflow detection information through the floor detection sensor unit 30 and a control module 50 provided to calculate and output a driving signal for the automatic snow removal unit 100 .

At this time, the movement detection sensor unit 20 installs the first light output unit 21 and the first light receiver 22 on the side plates 12 opposite to each other inside the measurement chamber 11, and the The first light output unit 21 is provided to detect as a movement signal when the light source transmitted to the first light receiving unit 22 is blocked by an inflow while the light source is being received by the first light receiving unit 22 do it with

In addition, in the floor detection sensor unit 30, a second light output unit 31 is installed in the side plate unit 12 inside the measurement room 11, and a bottom plate unit corresponding to the second light output unit 31 ( 14), a second light receiving unit 32 is provided on When the light source transmitted to the second light receiving unit 32 is blocked, it is characterized in that it is provided to detect the incoming material as a settling signal.

In addition, the second light receiving unit 32 of the floor detection sensor unit 30 is characterized in that it is disposed at a plurality of places spaced apart from each other at predetermined intervals on the floor plate unit 14 .

In addition, based on the total number of the second light receivers 32, it is characterized in that it is provided to detect the amount of snow by using the ratio information at which the signal to settle the inflow due to the blocking of the light source is detected.

In addition, the cleaning unit 40 is composed of at least one of a wiper 42 and a cleaning liquid nozzle 44, and the cleaning liquid sprayed through the cleaning liquid nozzle 44 is antifreeze 10 to 80 parts by weight relative to 100 parts by weight of water. It is made of a mixture containing parts, and the cleaning liquid is set to the same freezing point as the salt water for snow removal sprayed through the automatic snow removal unit 100 .

In addition, the control module 50 includes the movement detection sensor unit 20 and the floor detection sensor unit under the condition that the temperature sensor 16 detection information is 1 ° C. or less and the relative humidity detected by the humidity sensor 18 is 75% or more. If the inflow is continuously detected through (30), it is recognized as a snowfall situation, and when the snowfall amount by the floor detection sensor unit 30 reaches a set value in a snowfall situation condition, the automatic snow removal unit 100 drive signal is output. At the same time, the cleaning unit 40 is turned on, and the process is re-executed from the time when the cleaning unit 40 is turned off to determine the time when the automatic snow removal unit 100 drive signal is re-outputted. .

In addition, the roof plate 11a protrudes from the inner circumferential surface of the entrance to the measurement chamber 11, or the measurement chamber 11 is formed in a downward-facing light structure that expands in size toward the lower portion, and flows into the measurement chamber 11 It is characterized in that the side plate portion 12 is provided to be protected by the inflow.

According to the above configuration and operation, the present invention provides reliable and quantitative snowfall in the field by complexly calculating the movement detection information of the inflow into the measurement room, the detection information of the inflow seated on the floor of the measurement room, and the temperature and humidity sensor information. Information can be detected, and in particular, the internal environment of the measurement room is created similar to the road surface condition where salt water for snow removal is sprayed by the automatic snow removal unit, so the intermittent operation timing of the automatic snow removal unit according to continuous snowfall can be accurately controlled. there is

1 is a configuration diagram showing the snowfall detection system as a whole according to an embodiment of the present invention.
2 is an enlarged configuration diagram illustrating a floor detection sensor unit of a snowfall detection system according to an embodiment of the present invention.
3 is a configuration diagram illustrating a light source output and reception direction of a movement detection sensor unit of a snowfall detection system according to an embodiment of the present invention.
4 is a flowchart illustrating an operation sequence by a control module of a snowfall detection system according to an embodiment of the present invention.
5 is a block diagram showing the structure of the measurement room of the snowfall detection system according to an embodiment of the present invention.
6 is a configuration diagram showing an operating state of a snowfall detection 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.

1 is a block diagram showing the snowfall detection system as a whole according to an embodiment of the present invention, FIG. 2 is an enlarged configuration diagram showing the floor detection sensor unit of the snowfall detection system according to an embodiment of the present invention, FIG. 3 is It is a configuration diagram showing the light source output and reception direction of the movement detection sensor unit of the snowfall detection system according to an embodiment of the present invention, and FIG. 4 is a flowchart showing the operation sequence of the snowfall detection system according to an embodiment of the present invention, FIG. 5 is a configuration diagram showing the structure of the measurement room of the snowfall detection system according to an embodiment of the present invention.

The present invention relates to a snowfall detection system, wherein the snowfall detection system calculates the movement detection information of the inflow into the measurement room, the detection information of the inflow seated on the floor of the measurement room, and the temperature and humidity sensor information in a complex manner, so as to be reliable in the field and quantitative snowfall information can be detected. In particular, since the internal environment of the measurement room is created similar to the road surface condition where salt water for snow removal is sprayed by the automatic snow removal unit, the intermittent operation timing of the automatic snow removal unit according to continuous snowfall is precisely controlled It has a main configuration including a main body 10, a movement detection sensor unit 20, a floor detection sensor unit 30, a cleaning unit 40, and a control module 50 so as to be able to do so.

The main body 10 according to the present invention forms a measurement chamber 11 with an open upper part by the side plate part 12 and the bottom plate part 14, and any one or more of the temperature sensor 16 and the humidity sensor 18 this is provided

The main body 10 is installed adjacent to the road, and the measurement room 11 is disposed to be exposed to the external environment. In addition, a drain line is formed on the floor of the measurement room 11 to drain rainwater in case of rain and to discharge the cleaning liquid from the cleaning unit 40 to be described later.

At this time, the measurement room side plate part 12 and the bottom plate part 14 transmit the light sources of the movement detection sensor part 20 and the floor detection sensor part 30 to be described later, and the wiper 42 of the cleaning part 40 . It is preferably formed of transparent glass so that the surface can be cleaned by operation.

In addition, as shown in Fig. 5 (a), the roof plate 11a protrudes from the inner circumferential surface of the entrance of the measurement room 11, or as shown in Fig. 5 (b), the size of the measurement room 11 is increased toward the lower portion. is formed

Accordingly, among the inflows flowing into the measurement room 11, the inflow that descends adjacent to the side plate part 12 is blocked by the roof plate 11a or the entrance of the measurement room 11 of the upper-narrow structure, so that the inside of the measurement room 11 As the inflow into the furnace is blocked, the side plate part 12 is protected, and this has the advantage of preventing contamination of the side plate part 12 by the inflow.

In addition, the movement detection sensor unit 20 according to the present invention is installed on the side plate portion 12 and is provided to detect the movement of the influent flowing into the measurement room 11 .

The movement detection sensor unit 20 is provided by installing a first light output unit 21 and a first light receiving unit 22 on side plates 12 opposite to each other inside the measurement chamber 11, and the first When the light source transmitted to the first light receiving unit 22 is blocked by the inflow while the light source is being received by the first light receiving unit 22, the light output unit 21 is provided to detect it as an inflow moving signal.

At this time, the first light output unit 21 and the first light receiving unit 22 are installed on the side plate parts 12 facing each other to form a sensing line in a straight direction, or either side plate on either side as shown in FIG. 3 (a). The first light output unit 21 is installed in the unit 12, and the first light receiving unit 22 is disposed on the plurality of side plate units 12 so that the sensing line is compositely formed in a linear direction and an oblique direction; As shown in Fig. 3 (b), it is also possible to arrange the arrangement structure of Fig. 3 (a) in a symmetrical structure so that the sensing lines are knitted in two straight directions and four diagonal directions.

In addition, the floor detection sensor unit 30 according to the present invention is installed on the floor plate unit 14 and is provided to detect the inflow material seated on the floor inside the measurement room 11 .

The floor detection sensor unit 30 includes a second light output unit 31 installed in the side plate unit 12 inside the measurement room 11 , and a bottom plate unit 14 corresponding to the second light output unit 31 . A second light receiving unit 32 is provided thereon.

And while the light source of the second light output unit 31 is received by the second light receiving unit 32, when the light source transmitted to the second light receiving unit 32 is blocked by the inflow that is seated on the bottom plate unit 14 It is provided to detect the incoming material as a settling signal.

In FIG. 2 , the second light receiver 32 of the floor detection sensor unit 30 is spaced apart from each other at a predetermined interval on the floor plate 14 , and is received by each second light receiver 32 . It is provided to detect a signal that the light source is blocked to increase the accuracy of snow detection, and further detect the amount of snow.

That is, based on the total number of the second light receivers 32, the control module 50 is provided to detect the amount of snow by using the ratio information at which the signal to settle the inflow by blocking the light source is detected, and to be described later using the information on the amount of snow. It can be used as information for determining the operation timing of the automatic snow removal unit 100 by

On the other hand, the arrangement interval of the second light receiver 32 is arranged at intervals of 10 to 60 mm depending on conditions including water permeability, snow melting efficiency, and surrounding climate according to the characteristics of the road, in this case, the second light receiver 32 has a plurality of replaceable sensor plate modules for each arrangement interval type, and forms a slot groove on the upper surface of the main body 10, the bottom plate 14, and the sensor plate module can be replaced according to the main body 10 installation environment. configuration is also possible.

Also, the cleaning unit 40 according to the present invention is installed on the main body 10 to clean the surface of the side plate part 12 and the bottom plate part 14 .

The cleaning unit 40 includes at least one of a wiper 42 and a cleaning liquid nozzle 44 . In FIG. 1 , the cleaning unit 40 shows a state in which the wiper 42 and the cleaning liquid nozzle 44 are applied in combination.

At this time, the cleaning liquid sprayed through the cleaning liquid nozzle 44 is made of a mixture containing 10 to 80 parts by weight of antifreeze relative to 100 parts by weight of water, and the cleaning liquid is the same as the salt water for snow removal sprayed through the automatic snow removal unit 100 . set to freezing point.

And the timing at which the cleaning solution is sprayed through the cleaning solution nozzle 44 is set to coincide with the injection timing of the salt water for snow removal through the automatic snow removal unit 100 to be described later.

In addition, the control module 50 according to the present invention includes the temperature sensor 16 detection information, the humidity sensor 18 detection information, the inflow detection information through the movement detection sensor unit 20, and the floor detection sensor unit 30. The automatic snow removal unit 100 is provided to output a driving signal by calculating any one or more of the detection information of the inflow through the .

As shown in FIG. 4 , the control module 50 includes the movement detection sensor unit 20 and the floor under the condition that the temperature sensor 16 detection information is 1° C. or less of the image, and the relative humidity detected by the humidity sensor 18 is 75% or more. When the inflow is continuously detected through the detection sensor unit 30, it is recognized as a snowfall situation, and when the amount of snowfall by the floor detection sensor unit 30 reaches a set value in a snowfall situation condition, the automatic snow removal unit 100 driving signal is output and the cleaning unit 40 is turned on at the same time.

Thereafter, the process is re-executed from the time when the cleaning unit 40 is turned off to determine the time of re-outputting the driving signal of the automatic snow removal unit 100 thereafter.

Then, the process is re-executed from the time when the cleaning unit 40 is turned off to determine the time of re-outputting the driving signal of the automatic snow removal unit 100 thereafter.

As shown in FIG. 6, as the cleaning solution is sprayed in connection with the time when the salt water for snow removal is applied through the automatic snow removal unit 100, the environment inside the measurement room 11 is created under similar conditions to the road environment where the salt water spray for snow removal is applied. Accordingly, after the first snow removal operation is performed, the information on the snow accumulation inside the measurement room 11 is detected under the same conditions as the road environment, so the automatic snow removal unit 100 operation timing is accurately detected to perform the 2nd ~ Nth snow removal operation. have.

10: body 20: movement detection sensor unit
30: floor detection sensor unit 40: cleaning unit
50: control module

Claims (8)

a body 10 having an open upper part of the measurement chamber 11 formed by the side plate part 12 and the bottom plate part 14, and provided with at least one of a temperature sensor 16 and a humidity sensor 18;
a movement detection sensor unit 20 installed on the side plate unit 12 and provided to detect the movement of an influent flowing into the measurement chamber 11;
a floor detection sensor unit 30 installed on the bottom plate unit 14 and provided to detect an inflow material seated on the floor inside the measurement room 11;
a cleaning unit 40 installed on the main body 10 to clean the surface of the side plate part 12 and the bottom plate part 14; and
Any one or more of the temperature sensor 16 detection information, the humidity sensor 18 detection information, the inflow detection information through the movement detection sensor unit 20, and the inflow detection information through the floor detection sensor unit 30 A snowfall detection system comprising: a control module (50) provided to calculate and output a driving signal to the automatic snow removal unit (100). The method of claim 1,
The movement detection sensor unit 20 is provided by installing a first light output unit 21 and a first light receiving unit 22 on the side plate units 12 opposite to each other inside the measurement room 11, and the first When the light source transmitted to the first light receiving unit 22 is blocked by the inflow while the light source is received by the first light receiving unit 22, the light output unit 21 is provided to detect an inflow moving signal. snow detection system. The method of claim 1,
The floor detection sensor unit 30 includes a second light output unit 31 installed in the side plate unit 12 inside the measurement room 11 , and a bottom plate unit 14 corresponding to the second light output unit 31 . A second light receiving unit 32 is provided on the second light receiving unit 32, and the second light output unit 31 receives the second light source by the inflow material seated on the bottom plate unit 14 while the light source is received by the second light receiving unit 32. Snowfall detection system, characterized in that it is provided to detect the incoming material when the light source transmitted to the light receiver (32) is blocked. 4. The method of claim 3,
The snowfall detection system, characterized in that the second light receiving unit (32) of the floor detection sensor unit (30) is spaced apart from each other at a predetermined interval on the floor plate unit (14). 5. The method of claim 4,
Snowfall detection system, characterized in that, based on the total number of the second light receivers (32), the snowfall detection system is provided to detect the amount of snow by using the ratio information at which the inflow signal is detected by blocking the light source. The method of claim 1,
The cleaning unit 40 is composed of at least one of a wiper 42 and a cleaning liquid nozzle 44, and the cleaning liquid sprayed through the cleaning liquid nozzle 44 is methanol, ethanol, or antifreeze based on 100 parts by weight of water. It consists of a mixture containing 10 to 80 parts by weight of one or more mixtures, and the washing liquid is set to the same freezing point as the salt water for snow removal sprayed through the automatic snow removal unit 100 . The method of claim 1,
The control module 50 includes a movement detection sensor unit 20 and a floor detection sensor unit 30 under the condition that the temperature sensor 16 detection information is 1° C. or less of the image, and the relative humidity detected by the humidity sensor 18 is 75% or more. ), when the inflow is continuously detected, it is recognized as a snowfall situation, and when the snowfall amount by the floor detection sensor unit 30 reaches the set value under the snowfall condition, the automatic snow removal unit 100 drive signal is output and at the same time Snow detection characterized in that the cleaning unit 40 is turned on, and the process is re-executed from the time when the cleaning unit 40 is turned off to determine the time of re-outputting the driving signal of the automatic snow removal unit 100 thereafter. system. The method of claim 1,
The roof plate 11a protrudes from the inner circumferential surface of the entrance to the measurement chamber 11, or the measurement chamber 11 is formed in a downward-facing light structure in which the size expands toward the lower portion, and the inflow into the measurement chamber 11 is formed. Snow detection system, characterized in that provided to be protected by the side plate (12).

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