KR20210086419A - Vehicle type rainfall observation device - Google Patents

Abstract

Disclosed is a vehicle-type mobile rainfall observation device. The vehicle-type mobile rainfall observation device of the present invention comprises: a camera that takes a picture of a driving road; a GPS receiver that receives GPS location information and transmits location information; a rain sensor to determine the presence or absence of rain; a rainfall sensor for determining the intensity of rainfall; and a control unit for outputting the location information received from the GPS receiver, a signal output from the rain sensor and the rainfall sensor, and data for determining the degree of rainfall, thereby directly receiving rainfall information received from vehicles running on the road, and providing real-time weather information.

Description

Vehicle-type mobile rainfall observation device {VEHICLE TYPE RAINFALL OBSERVATION DEVICE}

The present invention relates to a device for measuring the presence and intensity of rainfall, and more particularly, a vehicle capable of installing an observation device in a moving vehicle and measuring the presence or absence of rainfall and the intensity of rainfall in a corresponding area according to the movement of the vehicle It relates to a type portable rainfall observation device.

Weather information is information about the weather that greatly affects our daily life. Recently, the Korea Meteorological Administration has opened weather forecasting so that private weather forecasters can also use it, and as the weather fluctuates due to climate change, interest in weather information is increasing.

In order to monitor and predict accurate weather information, it is necessary to acquire meteorological data through installation of meteorological equipment.

However, it is difficult to install weather equipment in road areas and urban areas due to problems such as site selection, power supply, safety, and theft. There is a limit to installing equipment.

In particular, the detection of weather involves the observation of weather elements such as wind, temperature, and atmospheric pressure, analysis of observation data, and weather prediction.

These observations include observations from observatories that exist only on land, observations by meteorological buoys or ships that supplement ocean data, and observations by artificial satellites.

However, in the case of such observations, there is an error, and in particular, there is a problem that the observation data of artificial satellites are inaccurate.

In addition, since the conventional weather forecast is for a wide area, there is a limitation in predicting the actual weather in a specific section of a highway, so there is a problem in that it is not possible to effectively prepare for localized heavy rain or heavy snow.

In particular, it can be seen that most of the observation elements for producing road hazard weather information among the data observed by the existing mobile observation device (car) are tailored to the road surface condition, such as the road surface condition, road surface temperature, friction force, and water layer.

As a result, research for measuring the risk versus precipitation has no choice but to use a fixed observation device, but it is difficult to guarantee accuracy because there are not many sensors installed.

KR Patent Publication No. 10-2017-0099089 (2017.08.31) KR Registered Patent Publication No. 10-1393370 (2014.05.01)

The present invention for solving this problem is to provide a vehicle-type mobile rainfall observation device capable of measuring the amount of rainfall at the corresponding point during movement using a sensor attached to the vehicle in strong, medium, and weak stages, which are the rainfall stages on the road dangerous season. aim to

Another object of the present invention is to provide a vehicle-type mobile rainfall observation device capable of collecting rain information divided into a rain presence sensor and an intensity sensor.

Another object of the present invention is to provide a vehicle-type mobile rainfall observation device capable of producing meteorological information on roads across the country by convergence of stationary weather observation technology and mobile observation technology.

In order to solve this problem, the vehicle-type mobile rainfall observation device of the present invention includes a camera that captures an image of a traveling road, a GPS receiver that receives GPS location information and transmits location information, and a rainfall sensor that determines the presence or absence of rain. , a rainfall detection sensor for determining the intensity of rainfall, and a control unit for outputting the location information received from the GPS receiver, the signal output from the rainfall detection sensor and the rainfall detection sensor, and data for determining the degree of rainfall. can do.

In addition, based on the location information received from the control unit and the signals from the rainfall sensor and the rainfall sensor, the rainfall information of the road is determined as “strong, medium, or weak” to determine the degree of rainfall on the map on which the national road network is displayed. It may be configured to further include a control center displayed on the corresponding road.

And the control unit determines that there is rain by the rainfall sensor, and when the value detected by the rainfall sensor is less than 0.3, the rain is coming weakly, and the value detected by the rainfall sensor is 0. If it is determined that it is raining, it is expressed that it is raining lightly, and when the rainfall sensor 150 determines that there is no rain, it is displayed as not raining, the rain sensor determines that there is rain, and the value detected by the rainfall sensor is Between 0.3 and 0.7, it is determined that it is raining to a moderate degree, the rain sensor determines that there is rain, and when the value detected by the rainfall sensor is 0.7 or more, it is determined that it is raining strongly.

Therefore, according to the vehicle-type mobile rainfall observation device of the present invention, since rainfall information can be directly received from a vehicle traveling on a road, it is possible to provide weather information in real time.

In addition, according to the vehicle-type mobile rainfall observation device of the present invention, compared with the AWS rainfall amount, which is the reference equipment, similar results are shown, and the existing strong, medium, and weak stages are divided into more subdivided stages through continuous research and development in the future. up to the possible effect.

Another object of the present invention is to provide a vehicle-type mobile rainfall observation device capable of observing rainfall information of a national road network by locating individual vehicles equipped with the rainfall observation device.

In addition, the present invention has the effect of providing more accurate weather information because a rainfall sensor for detecting the presence or absence of rain and an intensity sensor for measuring the intensity of rainfall are mounted on the upper part of the vehicle to measure the degree of rainfall in the area. have.

And, according to the vehicle-type mobile rainfall observation device of the present invention, since a vehicle (road patrol, regular operation vehicle, etc.) can be used as a road weather sensor by applying a mobile weather observation technology, real-time weather information is observed for each section on all roads. It contributes to public safety by providing real-time dangerous weather information to drivers, and has the effect of providing more accurate customized road weather service through convergence with a fixed road weather information collection system.

1 is a main configuration diagram of a vehicle-type mobile rainfall observation device according to an embodiment of the present invention;
2 is a layout view of a sensor unit according to an embodiment of the present invention;
3 is a view showing an embodiment in which the sensor unit of the present invention is mounted on a vehicle;
4 is a reference view for explaining a method of determining the presence or absence of rain according to the presence or absence of vibration of a rainfall detection sensor according to an embodiment of the present invention;
5 is a comparison table of measurement graphs according to rainfall;
6 is a view showing a rain sensor data graph according to an embodiment of the present invention;
7 is a comparison table between the automatic weather observation device and the vehicle-type rainfall observation device of the present invention;
8 is a comparison table of road hazard weather information rainfall stages;
And
9 is a diagram illustrating an example of a rain sensor.

The terms or words used in the present specification and claims are not to be construed as limited in their ordinary or dictionary meanings, and on the principle that the inventor can appropriately define the concept of the term in order to best describe his invention. It should be interpreted as meaning and concept consistent with the technical idea of the present invention.

Throughout the specification, when a part "includes" a certain element, it means that other elements may be further included, rather than excluding other elements, unless otherwise stated. In addition, terms such as “…unit”, “…group”, “module”, and “device” described in the specification mean a unit that processes at least one function or operation, which is implemented by a combination of hardware and/or software can be

Throughout the specification, the term “and/or” should be understood to include all possible combinations from one or more related items. For example, the meaning of “the first item, the second item and/or the third item” may be presented from the first, second, or third item as well as two or more of the first, second, or third items. A combination of all possible items.

In each step throughout the specification, identification symbols (eg, a, b, c, ...) are used for convenience of description, and identification codes do not limit the order of each step, and each step is Unless the context clearly dictates a specific order, the order may differ from the stated order. That is, each step may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

A vehicle-type mobile rainfall observation device according to an embodiment of the present invention is equipped with a camera, a GPS sensor, a rainfall detector, and a rainfall measurement sensor in the vehicle, and measures the presence and absence of rainfall and the degree of rainfall in real time while driving the road to the control center. and the control center operates to provide the collected road weather information.

To this end, the vehicle-type mobile rainfall observation device according to an embodiment of the present invention consists of a GPS receiver 130, a mobile observation device 140, a camera unit 120, and a control unit 110, mounted on the vehicle and measured rainfall. The information is transmitted to the control center 200 to collect weather information on national roads.

In addition, the control center 200 may display a nationwide road map and rainfall information for each road on the display unit 210 so that it can be managed.

Referring to the arrangement diagram of the sensor unit according to an embodiment of the present invention in FIG. 2 and the diagram illustrating an embodiment in which the sensor unit of the present invention is mounted on a vehicle in FIG. 3 , a rainfall detection sensor 142 and rainfall detection at the upper end of the vehicle A mobile observation device 140 composed of a sensor 144 is mounted, and the sensor surface is arranged to face the sky to detect the presence or absence of rainfall and the amount of rainfall while driving.

That is, in the vehicle-type mobile rainfall observation device of the present invention, the mobile observation device 140 is a pair of the rainfall detection sensor 142 and the rainfall detection sensor 144 in order to accurately determine the rainfall as a separate sensor. One characteristic is to measure.

The rainfall sensor 142 uses a vibration sensor (piezo), and is configured to generate a pulse of vibration when vibration occurs, and when rain occurs, raindrops collide with the vibration plate. At this time, vibration occurs, and the intensity (amplitude) of vibration ) and period (time) can be analyzed to detect rainfall.

Such a rainfall sensor may use a generally distributed rainfall sensor, for example, a rainfall detection device disclosed in KR Patent Publication No. 10-1393370 (2014.05.01) described as a prior document may be used.

Referring to the reference diagram for explaining the method of determining the presence or absence of rainfall according to the presence or absence of vibration of the rainfall detection sensor according to an embodiment of the present invention of FIG. 3 , the left side is a graph when there is no vibration, and the right side is a graph when there is vibration It is a graph when

In addition, referring to the diagram showing the rainfall detection sensor data graph according to an embodiment of the present invention in FIG. 4 , the upper figure shows a state of numerically less than 0.3 when a small amount of rain falls, and the central figure shows a medium rain It exemplifies the time to come, and numerically it is about 0.3 to 0.7.

The lower figure is measured when it rains a lot, and it means more than 0.7.

As shown in the figure on the right of FIG. 3 , the intensity (amplitude) and period (time) of the vibration are analyzed to detect rainfall and express this numerically.

In the present invention, the degree of rainfall is expressed as strong, medium, or weak through the rainfall detection sensor.

That is, when there is a small amount of rain, it is numerically expressed as less than 0.3, and when it rains, it is numerically expressed as “weak”, and when it rains, it is numerically about 0.3 to 0.7, and this is expressed as “medium” and when it rains a lot. A measurement of 0.7 or more is expressed as "strong".

The rain sensor 144 is composed of a sensor that can know only the presence or absence of rain when rain occurs, and referring to the diagram showing the rain sensor data graph according to an embodiment of the present invention in FIG. 6, if there is rain When there is no rainfall as "High", it is classified as "Low".

The rain sensor may be configured as a sensor that operates using normal rainwater as a conductor, but it is preferable to use a rain sensor that can detect even a very small amount of rain.

An example of such a rain monitoring sensor is shown in FIG. 9 .

Referring to FIG. 9 , when it rains, rainwater is collected in the rain collector 1 mounted on the vehicle and flows into the rain container 5, and accordingly, the sensor floater 4 is moved in the cylinder 3 by the weight of the rainwater. will descend from Then, the shaft 6 installed in the center of the lower surface of the sensor part 4 also descends together with the sensor part 4, so the vertical transfer contact power switch 7 connected to the shaft 6 and the lower end is connected to the lower power connection switch ( 9,) (9').

At this time, it detects the presence of rain by outputting it as a High signal.

Accordingly, the power supply 10 is applied to the cover driving motor 12 , and the steel collector cover 14 mounted on the cover driving motor 12 is opened by the rotational operation of the cover driving motor 12 . When the collector cover 14 is fully opened and touches the cover opening limit switches 13', 13, the cover opening limit switches 13' and 13 are turned OFF by the collector cover 14. Therefore, the power supply 10 applied to the cover drive motor 12 is cut off, the cover drive motor 12 stops operating, and the collector cover 14 remains open as indicated by the dotted line.

On the other hand, when the rain stops, the rainwater collected in the rainfall container 5 is dried, and the sensor floater 4 rises due to a decrease in weight. Accordingly, since the vertical transfer contact power switch 7 comes into contact with the upper power connection switches 8 and 8', the power supply 10 is supplied to the cover driving motor 12 with the polarity opposite to that when the cover is opened. When applied, the cover driving motor 12 rotates opposite to that when the cover is opened.

At this time, it detects that there is no rain by outputting it as a Low signal.

Accordingly, the collector cover 14 is closed, the cover opening limit switches 13' and 13 are turned on, and when the collector cover 14 is completely closed, the cover closing limit is set by the collector cover 14. Since the switches 11 and 11' are turned OFF, the power 10 applied to the cover driving motor 12 is cut off, and the cover opening motor 12 stops operating and the collector cover 14 is to remain closed as indicated by the solid line.

In the present invention, the operation of turning on and off the cover of the collecting port with the detection of rainfall has been described, but only the presence or absence of rain can be detected, and, if necessary, the amount of rainfall can be measured.

In the present invention, the control unit 110 determines that there is rain from the rainfall sensor 144 first so that it can be determined only when there is rain and when there is no rainfall, and the rainfall amount detected through the rainfall sensor 142 is based on In comparison with the numerical value corresponding to "strong, medium, and weak" stored in the storage unit 160 , the degree of rainfall is expressed as strong, medium, and weak, and this is transmitted to the control center 200 .

To this end, the present invention is configured to store the DB indicating the display degree of the rainfall corresponding to the value detected by the rainfall detection sensor 142 in the storage unit 160 .

That is, when the rainfall detection sensor 144 determines that there is rain and the value detected by the rainfall detection sensor 142 is less than 0.3, the rain is weakly coming, and the value detected by the rainfall detection sensor 142 is “0”. In the state, when the rain sensor 144 determines that there is rain, it can be expressed that rain is coming lightly, and when the rain sensor 144 determines that there is no rain, it can be displayed as not raining.

In addition, it is determined that there is rain by the rainfall sensor 144, and when the value detected by the rainfall sensor 142 is between 0.3 and 0.7, it is determined that the rain is coming to an intermediate level, and the rainfall sensor 144 determines that there is rain And when the value detected by the rainfall detection sensor 142 is 0.7 or more, it is configured to store data that can be determined that it is raining strongly.

In addition, it is determined that there is no rainfall in the rainfall sensor 144, but when a numerical value is detected by the rainfall sensor 142, it is determined that there is an error in the device, and the rain sensor 144 and the rainfall sensor 142 ) is reset and measured again, and if it is determined that there is a continuous error, the rain sensor 144 and the rainfall sensor 142 can be replaced respectively or simultaneously to be repaired.

In this case, the control unit 110 issues an error message to the measurer to check the device, and at the same time stores the error time, measurement result, and location in the storage unit 160 to record the unmeasured area and time.

Data on the presence or absence of rainfall and the amount of rainfall may be transmitted on the transmission data, but the GPS location information received from the GPS receiver 130 is also transmitted so that the control center or the control unit can determine the road currently driving.

Of course, the vehicle-type mobile rainfall observation device of the present invention may be installed in a vehicle belonging to each road construction company, but it should be installed on a vehicle passing through a national road periodically or in several places so that the weather information of the national road can be collected in real time. .

Accordingly, the control center 200 can display and guide the rainfall information for each road in the country by using the rainfall information received together with the road GPS location information.

That is, by comparing the existing automatic weather observation system (AWS) with a vehicle-type rainfall monitoring system, accurate data can be displayed.

The present invention maps the data observed from the vehicle-type rainfall monitoring device based on the rainfall of the automatic weather observation system (AWS) of the Korea Meteorological Administration, so that it can be observed as strong, medium, and weak, which are the standard categories of road hazard weather information.

Referring to the comparison table between the automatic weather observation device of FIG. 7 and the vehicle mobile rainfall observation device of the present invention, AWS values for each time and the mobile measurement result of the present invention are shown.

Referring to Figure 7, in the case of 14:00, AWS is "0" and the mobility is "0", indicating that it does not rain, and in the case of 15:00, AWS is "4" and the movement is "0.3", indicating that it is raining lightly. , at 16:00, “26” for AWS, “1.1” for migration, heavy rain at 17:00, “19.5” for AWS at 17:00, “1.1” for migration, 18:00 In the case of AWS "10", the moving expression is "0.6", indicating that it is raining, in the case of 19:00, AWS is "14", the movement is "0.55", indicating that it is raining, and in the case of 20:00 AWS is "4", mobile is "0.3", indicating that it is raining moderately, at 21:00, AWS is "0.5", and moving is "0.1", indicating that it is raining lightly, and at 22:00, AWS also indicates that it is raining lightly. It can be determined that it is raining weakly as "0.5" and "0.1" in the mobile type, "0" in AWS at 23:00, and no rain as "0" in the mobile type.

Of course, if the rain comes as "strong, medium, weak", it is determined on the premise that the rain sensor 144 detects that it is raining.

Therefore, the cases of 14:00 and 23:00 can be regarded as cases in which the rain sensor 144 determines that there is no rain.

When these measurement results are substituted into the rainfall stage reference table of the Korea Meteorological Administration, the rainfall stage reference table as shown in FIG. 8 is generated.

Referring to the road hazard weather information rainfall stage comparison table of FIG. 8, rainfall is roughly divided into three stages, and "weak stage; Light" as a weather category expression becomes "less than 3 mm/hr" in terms of precipitation (AWS), and the present invention It can be displayed as "less than 0.3" as the display of the mobile observation device.

In addition, as a meteorological category expression, "medium; Medium" may be displayed as "3 to 15 mm/hr" as a precipitation amount (AWS) display, and as "0.3 to 0.7" as a display of the mobile observation device of the present invention.

And, as a meteorological category expression, "heavy" may be displayed as "more than 15 mm/hr" in the precipitation (AWS) display, and "more than 0.7" in the display of the mobile observation device of the present invention.

That is, when the rainfall detection sensor 144 determines that there is rain and the value detected by the rainfall detection sensor 142 is less than 0.3, the rain is weakly coming, and the value detected by the rainfall detection sensor 142 is “0”. In the state, when the rain sensor 144 determines that there is rain, it can be expressed that rain is coming lightly, and when the rain sensor 144 determines that there is no rain, it can be displayed as not raining.

In addition, it is determined that there is rain by the rainfall sensor 144, and when the value detected by the rainfall sensor 142 is between 0.3 and 0.7, it is determined that the rain is coming to an intermediate level, and the rainfall sensor 144 determines that there is rain And if the value detected by the rainfall detection sensor 142 is 0.7 or more, it may be determined that it is raining strongly.

In addition, in the present invention, the presence or absence of rainfall and the intensity of rainfall may be analyzed using the rainfall sensor 142 and the rainfall sensor 144. It can be configured to double check by analyzing the degree.

Referring to FIG. 1 , the camera unit 120 may include one or more cameras, and may be mounted on a vehicle and analyze the received image to analyze the degree of rainfall.

For example, the intensity of rainfall may be determined and displayed in three stages using the captured image.

Meanwhile, when a sudden change in rainfall is detected based on the rainfall analysis information provided in real time, the control center 200 generates a warning sound and provides emergency information to vehicles operating in the area, and vehicles passing through the area. operates to issue a caution alert to

As described above, according to the vehicle-type mobile rainfall observation device of the present invention, since rainfall information can be directly received from a vehicle running on a road in real time, it is possible to provide accurate weather information of the corresponding area in real time.

Although the present invention has been described in detail with respect to the described embodiments, it is obvious to those skilled in the art that various changes and modifications are possible within the scope of the technical spirit of the present invention, and it is natural that such variations and modifications belong to the appended claims.

110: control unit 120: camera unit
130: GPS receiver 140: mobile observation device
142: rainfall detection sensor 144: rainfall detection sensor
160: storage
200: control center 210: display unit

Claims (6)

a camera that takes an image of a driving road;
A GPS receiver for receiving the GPS location information and transmitting the location information;
Rain sensor for determining the presence or absence of rain;
Rainfall detection sensor for determining the intensity of rainfall; And
a control unit for receiving the location information received from the GPS receiver and the rainfall observation data output from the rainfall sensor and the rainfall sensor and outputting data that determines the degree of rainfall;
A vehicle-type mobile rainfall observation device comprising a.
The method according to claim 1,
The rainfall sensor and the rainfall sensor are mounted on a bracket coupled to the outside of the vehicle and electrically connected to a control unit mounted inside the vehicle, and the control unit converts rainfall information from the received rainfall observation data to “strong, medium, or A vehicle-type mobile rainfall observation device that outputs data that judges the degree of rainfall as “weak”.
The method according to claim 1,
a control center for receiving the location information and data for determining the degree of rainfall from the control unit and displaying the weather condition of the corresponding road on the corresponding road on a map on which the national road network is displayed;
Vehicle-type mobile rainfall observation device further comprising a.
The method according to claim 1,
The rain sensor
a rain collector that collects rainwater;
a rain container in which rainwater from the rain collector is collected and introduced;
a sensor unit that descends in the cylinder by the weight of rainwater and has a shaft installed in the lower center;
Up-and-down contact power switch connected to the lower end of the shaft; And
a lower power connection switch to which the contact power switch is in contact to output a High signal;
A vehicle-type mobile rainfall observation device comprising a.
The method according to claim 1,
the control unit
If it is determined that there is no rain in the rain sensor, it is displayed as not raining,
It is determined that there is rain by the rainfall sensor, and the intensity value detected by the rainfall sensor is less than 0.3, indicating that the rain is weak,
The rainfall sensor determines that there is rain, and when the value detected by the rainfall sensor is between 0.3 and 0.7, the rain is coming to an intermediate level, the rainfall sensor determines that there is rain, and the value detected by the rainfall sensor is 0.7 In case of abnormality, it is determined that it is raining strongly.
6. The method of claim 5,
Although the rain sensor determines that there is rain, even when the value detected by the rainfall sensor is “0”, it is a vehicle-type mobile rain observation device that expresses that the rain is weak.

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