KR102548011B1 - Reverse Driving Detection Device using Radar - Google Patents

Abstract

The present invention relates to a reverse running detection device using a radar capable of accurately detecting and guiding a reverse running vehicle.
In order to solve the above problems, the apparatus for detecting reverse running using a radar according to the present invention includes a vertical support having a predetermined length; An enclosure installed on top of the support and having an installation space of a predetermined size therein; A driving unit installed inside the enclosure and generating rotational power; a radar module installed in the drive unit to be located outside the enclosure and rotated through the drive unit; and a controller installed inside the enclosure to control the operation of the drive unit and to determine a reverse driving vehicle based on information detected by the radar module, wherein the controller causes the radar module to face a reverse driving direction. When the reverse running vehicle is firstly detected in the initial position, the operation of the drive unit is controlled to rotate the direction of the radar module to face the driving direction to secondarily detect the reverse running vehicle.

Description

Reverse Driving Detection Device using Radar}

The present invention relates to a device for detecting reverse running using a radar, and more particularly, to detect reverse running using a radar for detecting and guiding reverse running of a vehicle in order to prevent an accident caused by a vehicle traveling in a reverse direction different from the driving direction of the road. It's about the device.

In general, on roads, a center line is painted on the floor or facilities such as a median divider are installed so that vehicles coming and going from both directions can safely drive along each driving lane.

However, in intersections where the center line or median is temporarily disconnected or on a one-way road where the direction of vehicle travel is restricted, first-time drivers cross the center line and drive in the opposite lane (reverse driving) frequently. If you do, there is a risk that a major accident may occur as it leads to a head-on collision with a driving vehicle.

Therefore, in recent years, various devices for detecting and guiding vehicles running in reverse have been developed. As a prior art for this purpose, a method and device for preventing reverse running in Patent Registration No. 2211552 (hereinafter referred to as 'patent document') have been disclosed.

The patent document includes an object detection unit for detecting whether or not there is a first object entering a preset access road in a reverse direction; an image capturing unit that captures a predetermined reverse access road and generates an image of the reverse access road; a speed measurement unit that primarily measures a current speed of the first object when the first object exists on the preset reverse access road; a first object selection unit that primarily selects a first specific object by comparing the current speed with a predetermined threshold speed; a second object sorting unit recognizing a moving second object from the reverse access road image and secondarily selecting a second specific object by comparing it with a preset image size among the second objects; and an alarm controller recognizing that a reverse entry object has entered the reverse access road and generating an alarm signal when the first specific object and the second specific object coincide with each other, wherein the object detection unit uses a radar to detect the first object entering a Region of Interest (ROI) area, and the ROI area is set as an area corresponding to the one-way access road among images captured in a direction facing the one-way access road, and the image capture The unit generates an image of the reverse access road in which an area corresponding to the one-way access road is photographed at the same time synchronized with the object detection unit using a camera, and the speed measuring unit uses the radar to detect the first specific object. Measuring a current speed, which is the first speed, detecting a second speed for the second specific object from the reverse access road image, mapping a detection time for the first speed and a detection time for the second speed, The second speed is corrected using the first speed, and the alarm control unit recognizes that the first object is an approaching vehicle or person when the current speed exceeds a first threshold speed, and the same ROI area When the first specific object and the second specific object coincide with each other based on the virtual coordinates mapped on the image, the alarm signal including a phrase indicating entry of a reverse driving vehicle, a sound, and a red traffic light emission signal is generated.

However, the patent document detects the speed of the vehicle to determine the vehicle running in reverse, but in the case of a road where many vehicles pass, the speed of the vehicle traveling normally and the speed of the vehicle running in reverse are mixed with each other, and only the speed of the vehicle running in reverse is separately determined to determine whether the vehicle runs in reverse. It is difficult to determine, and it may operate by falsely detecting a vehicle running in reverse due to a malfunction of a radar or the like due to bad weather such as rain or snow. There is a problem in that the reliability of reverse driving vehicle detection is deteriorated.

Therefore, it is required to develop a reverse driving detection device with improved accuracy so that the detection result of the reverse running vehicle can be trusted.

KR 10-2211552 B1 (2021. 01. 28.) KR 10-2271463 B1 (2021. 06. 25.) KR 10-1760025 B1 (2017. 07. 14.) KR 10-2021-0010035 A (2021. 01. 27.)

The present invention has been made to solve the problems of the conventional reverse running detection device as described above, and the problem to be solved by the present invention is to provide a reverse running detection device using a radar capable of accurately detecting and guiding a reverse running vehicle. .

In order to solve the above problems, the apparatus for detecting reverse running using a radar according to the present invention includes a vertical support having a predetermined length; An enclosure installed on top of the holding and having an installation space of a predetermined size therein; A driving unit installed inside the enclosure and generating rotational power; a radar module installed in the drive unit to be located outside the enclosure and rotated through the drive unit; and a controller installed inside the enclosure to control the operation of the drive unit and to determine a reverse driving vehicle based on information detected by the radar module, wherein the controller causes the radar module to face a reverse driving direction. When the reverse running vehicle is firstly detected in the initial position, the operation of the drive unit is controlled to rotate the direction of the radar module to face the driving direction to secondarily detect the reverse running vehicle.

And in the present invention, the controller detects whether or not the second vehicle running in reverse is detected within a preset time after the first detection of the vehicle running in reverse through the radar module, and if the vehicle in reverse is detected secondarily, it is determined that the vehicle is running in reverse, and the vehicle in reverse is detected. Another feature is that if the secondary detection is not performed, it is judged as a false detection.

Another feature of the present invention is that the controller returns the radar module to an initial position when a set time elapses by controlling the operation of the driving unit.

In addition, first and second position sensors for detecting the direction of the radar module are installed at a predetermined angular interval in the driving unit, and the rotation axis of the driving unit is sensed through the first and second position sensors to detect the radar module. Aligning the direction of the module is another feature.

In addition, the present invention is characterized in that a photovoltaic power generation module for converting solar energy into electrical energy is further installed in the enclosure.

According to the present invention, a reverse-running vehicle is firstly detected through a radar installed to face the reverse running direction of the road, and then the reverse-running vehicle is secondarily detected through a radar rotated to face the running direction of the road. , According to the secondary detection result, the presence or absence of a reverse running vehicle is determined and guided, thereby reducing errors in misdetection or non-detection of a reverse running vehicle, and as a result, the accuracy and reliability of the reverse running detection device are improved.

1 is a perspective view showing an example of a reverse running detection device using a radar according to the present invention.
Figure 2 is a side view of Figure 1;
Figure 3 is a front view of Figure 1;
4 is a perspective view showing an example of a driving unit and a radar module according to the present invention;
Figure 5 is a front view of Figure 4;
6 is a perspective view showing an example of a radar module according to the present invention;
Figure 7 is a side view of Figure 6;
8 is a view showing an example in which the angle of the radar of the radar module according to the present invention is adjusted.
9 and 10 are views showing an example in which the reverse driving detection device using a radar according to the present invention is used.

Hereinafter, it will be described in detail according to the accompanying drawings showing a preferred embodiment of the present invention.

The present invention is to provide a reverse running detection device using a radar capable of accurately detecting and guiding a reverse running vehicle. As shown in FIGS. 1 and 2, the present invention includes a support 10, an enclosure 20, It includes a unit 30, a radar module 40 and a controller 50.

The post 10 is fixedly installed on the side of the road so that the enclosure 20 described later is installed at a predetermined height from the road surface. As shown in FIGS. 1 and 2, the post 10 has a predetermined length vertically It may be made of a rectangular or circular steel pipe having a rectangular cross section.

In addition, an external power line may be inserted into the inside of the support 10 and installed to be connected to the inside of the enclosure 20, through which commercial power is supplied to the drive unit 30 and the radar module 40 installed in the enclosure 20. ) and may be applied toward the controller 50.

The enclosure 20 is installed on top of the support 10 and is configured to accommodate configurations of the driving unit 30 and the controller 50 to be described later therein.

This enclosure 20 may be configured in a rectangular box shape, one side is open so that the installation space inside is exposed to the outside, or one side is formed so that it is opened, and then a door (not shown) is formed on one side that is opened. ) is installed, and a locking device is installed on the door so that the door can be selectively opened through the locking device.

The driving unit 30 is installed inside the enclosure 20 and rotates the radar module 40 to be described later within a predetermined angular range.

As shown in FIGS. 3 and 4 , the driving unit 30 is vertically installed on the bottom of the “L”-shaped fixing bracket 31 installed inside the enclosure 20 and the fixing bracket 31. A motor 32 installed so that the drive shaft 32A protrudes upward through the fixing bracket 31, a rotation shaft 33 connected to the drive shaft 32A and vertically having a predetermined length, and the rotation shaft 33 ) and a bearing unit 34 for rotatably supporting the rotating shaft 33, and a mounting plate 35 having a predetermined size provided at the upper end of the rotating shaft 33.

At this time, the bearing unit 34 is fixed to the inside of the enclosure 20 to support the rotating shaft 33 to be rotatable while maintaining a vertically installed state, and the driving shaft 32A and the rotating shaft 33 are separate couplings (drawings) No code) can be assembled to be interconnected.

In addition, on the upper surface of the fixing bracket 31, a pair of "L"-shaped mounts (without reference numerals) are installed at a predetermined angular distance from each other around the rotation shaft 33, and the rotation shaft 33 is installed on the pair of mounts. The first and second position sensors 36 and 37 may be installed so as to face.

At this time, an arc-shaped long hole (not shown) is formed around the rotation shaft 33 in the fixing bracket 31, and the installation position of the pair of mounts can be adjusted through the long hole. It may be configured to adjust the rotation radius of the radar module 40 according to the road environment on which it is installed by adjusting the angle of the pair of mounts centered on (33).

In addition, as shown in FIG. 5, a sensing protrusion (B) of a predetermined size is installed on the rotating shaft 33 so as to protrude outward, and the sensing protrusion (B) is rotated together by the rotation of the rotating shaft 33 to control the It may be configured to be selectively sensed by 1 and 2 position sensors 36 and 37.

Here, the first and second position sensors 36 and 37 may be made of proximity sensors, and through this, the sensing protrusion B is moved to the first and second position sensors 36 and 37 by the rotational motion of the rotating shaft 33. When approaching one of the selected sensors, a signal is generated from the corresponding sensor so that the rotational position of the rotating shaft 33 is sensed.

Through the above configuration, the radar module 40 installed on the mounting plate 35 is rotated together by the rotational motion of the rotation shaft 33, and the direction of the radar 43 is quickly and quickly detected so as to detect a reverse running vehicle twice. You can rotate it accurately.

The radar module 40 is installed in the drive unit 30 so as to be located outside the enclosure 20 and detects a reverse driving vehicle.

As shown in FIGS. 6 and 7 , the radar module 40 is connected to a horizontal plate of a predetermined size fixed to the installation plate 35 of the driving unit 30 and both ends of the horizontal plate to have a predetermined length vertically. A "c" shaped lower bracket 41 including a vertical plate having a, an upper bracket 42 of a predetermined size assembled to the vertical plate of the lower bracket 41, and installed on the upper bracket 42 It includes a radar 43 of a predetermined size.

At this time, as shown in FIG. 7, the upper bracket 42 may have an arc-shaped long hole (no reference numeral) formed so that the angle can be adjusted within a predetermined range while assembled to the lower bracket 41. Through this, as shown in FIG. 8, it is possible to adjust the angle (height) at which the radar 43 signal is transmitted and received according to the road environment on which the reverse running detection device 2 is installed.

The controller 50 is installed inside the enclosure 20 to control the rotational operation of the driving unit 30, and determines whether or not there is a vehicle traveling in reverse based on information detected by the radar module 40.

During initial operation, the controller 50 rotates the driving unit 30 to align the direction of the radar 43 of the radar module 40.

At this time, the controller 50 is a sensing protrusion (for example, the first position sensor 36) through a sensor (for example, the first position sensor 36) located at a distance based on the driving direction of the road among the first and second position sensors 36 and 37. B) rotates the rotating shaft 33 of the driving unit 30 until it is sensed, and then stops to align the position of the radar 43.

After the position of the radar 43 is aligned as above, as shown in FIG. 9, a radar signal is transmitted to detect a vehicle traveling in reverse. At this time, the controller 50 detects the vehicle 1 detected through the radar 43 Among them, the presence or absence of an object (vehicle) moving to approach the radar 43 is first detected.

In addition, the controller 50 may be configured to detect only objects moving at a speed equal to or higher than a preset speed in order to exclude animals or people from the objects detected through the radar 43 .

Through this, when an object moving toward the radar 43 is primarily detected, the controller 50 controls the operation of the drive unit 30 to detect another sensor (eg, the second position sensor 37) by The rotating shaft 33 is rotated until the sensing protrusion B is detected to change the sensing direction of the radar 43, and through this, as shown in FIG. 10, an object (vehicle) moving away from the radar 43 ) is detected secondarily.

At this time, when the reverse driving vehicle 1 is detected secondarily within a preset time through the radar 43, the controller 50 controls the operation of the alarm and the electric signboard to output a warning sound and a warning phrase. may be configured such that the detection information of the reverse running vehicle 1 is transmitted to a preset reception target.

In addition, if the reverse running vehicle 1 is not detected secondarily within a preset time through the radar 43, the controller 50 determines that the reverse running vehicle 1 is detected incorrectly.

After confirming whether or not the reverse driving vehicle 1 is detected for a preset time as described above, the controller 50 controls the operation of the driving unit 30 again to return the radar 43 to be located in the initially installed direction, and then , and the detection of the reverse running vehicle 1 is continued.

On the other hand, it has been described above that the power line is inserted into the holding column 10 so that commercial power is applied toward the enclosure 10, but unlike this, it is configured to self-sufficient power through the photovoltaic power generation module 60. It can be, for this purpose, a solar panel 61 having a predetermined size installed on the upper part of the enclosure 20 and a solar panel 61 connected to the solar panel 61 while installed inside the enclosure 20 to generate electrical energy It may be configured to include a charging unit 62 and a battery unit 63 that stores the electrical energy generated through the solar charging unit 62, and is independently installed and operated on outer roads where it is difficult to apply commercial power through this. can become

In addition, in the above, the controller 50 is provided inside the enclosure 20 and is only shown and described as being automatically controlled at the site where the reverse running detection device 2 is installed, but unlike this, a wired and wireless communication module inside the enclosure 20 is provided, and the data sensed through the wired/wireless communication module is transmitted in real time to a manager's smartphone or computer located at a remote location, so that the manager at a remote location checks the detection information on the reverse running vehicle and takes necessary measures such as warning. can be configured.

As described above, the present invention first detects a reverse-running vehicle through a radar installed to face the reverse running direction of the road, then secondarily detects the reverse-running vehicle through a radar rotated to face the running direction of the road, and then reverse-running vehicle According to the first and second detection results, the presence or absence of a vehicle traveling in reverse is determined and guided, thereby reducing the error of misdetection or non-detection of a vehicle running in reverse.

In the above, reference numerals and names have been given to the drawings showing preferred embodiments and the components shown in the drawings for convenience of explanation, but this is an embodiment according to the present invention, which corresponds to the shape shown on the drawings and the given name. The scope of the right should not be construed as being limited, and the change to various shapes predictable from the description of the invention and the simple substitution with a configuration that has the same action are within the range of change to be easily performed by those skilled in the art. You will find it extremely self-evident.

1: vehicle 2: reverse driving detection device
10: support 20: enclosure
30: drive unit 31: fixing bracket
32: motor 32A: drive shaft
33: rotation shaft 34: bearing unit
35: installation plate 36: first position sensor
37: second position sensor 40: radar module
41: lower bracket 42: upper bracket
43: radar 50: controller
60: solar power module 61: solar panel
62: charging unit 63: battery unit
B: sensor protrusion

Claims (5)

In the reverse running detection device 2 installed on the road to detect reverse running of the vehicle 1,

A post 10 of a predetermined length installed vertically;
An enclosure 20 installed on top of the support 10 and having an installation space of a predetermined size therein;
A drive unit 30 generating rotational power while being installed inside the enclosure 20;
A radar module 40 installed in the drive unit 30 to be located outside the enclosure 20 and rotated through the drive unit 30; and
A controller 50 installed inside the enclosure 20 to control the operation of the drive unit 30 and to determine a vehicle traveling in reverse based on information detected by the radar module 40;
including,
The controller 50,
When the reverse driving vehicle is first detected in a state where the radar module 40 is initially positioned to face the reverse driving direction, the operation of the driving unit 30 is controlled to adjust the direction of the radar module 40 to face the driving direction. It is controlled to secondarily detect a reverse driving vehicle by rotating it,
The drive unit 30,
A "L" shaped fixing bracket 31 installed inside the enclosure 20;
a motor 32 vertically installed under the fixing bracket 31 so that a drive shaft 32A protrudes upward through the fixing bracket 31;
a rotating shaft 33 connected to the drive shaft 32A and vertically having a predetermined length;
a bearing unit 34 rotatably supporting the rotating shaft 33; and
a mounting plate 35 having a predetermined size provided at the upper end of the rotating shaft 33;
including,
On the rotating shaft 33,
A sensing protrusion (B) of a predetermined size is installed so as to protrude outward, and the sensing protrusion (B) is rotated together by the rotation of the rotation shaft 33,
In the drive unit 30,
First and second position sensors 36 and 37 for detecting the direction of the radar module 40 are installed at predetermined angular intervals,
The sensing protrusion (B) of the rotating shaft 33 of the driving unit 30 is sensed through the first and second position sensors 36 and 37 to align the direction of the radar module 40, When the sensing protrusion (B) approaches any one sensor selected from the first and second position sensors 36 and 37, a signal is generated from the corresponding sensor and the rotational position of the rotating shaft 33 is sensed,
The radar module 40,
A "c" shaped lower bracket 41 including a horizontal plate of a predetermined size installed and fixed to the mounting plate 35 and a vertical plate connected to both ends of the horizontal plate and having a predetermined length vertically;
an upper bracket 42 having a predetermined size assembled to the vertical plate of the lower bracket 41; and
a radar 43 of a predetermined size installed on the upper bracket 42;
including,
In the upper bracket 42,
An arc-shaped long hole is formed so that the angle can be adjusted within a predetermined range in a state assembled to the lower bracket 41,
The controller 50,
After the reverse driving vehicle is firstly detected through the radar module 40, it is detected whether or not the reverse driving vehicle is detected secondarily within a preset time. If not, it is determined as a false detection, and the operation of the driving unit 30 is controlled to return the radar module 40 to an initial position when the set time elapses.
delete delete delete The method of claim 1,
In the enclosure 20,
A reverse driving detection device using a radar, characterized in that a photovoltaic power generation module 60 for converting solar energy into electrical energy is further installed.

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