KR100520208B1 - Device for Adjusting an Angle of Back Eye Camera for a Vehicle - Google Patents

Abstract

The present invention relates to an automatic device for automatically adjusting the angle of a back eye camera for an automobile, and in particular, an air cylinder having an upper limit and a lower limit switch and directly controlling an imaging angle of the camera; First and second solenoid valves which open and close in response to on / off of an operation switch operated by a user to allow the air cylinder rod to be lowered or raised; Third and fourth solenoid valves for discharging the compressed air present in the lower or upper portion of the air cylinder to the outside to lower or raise the rod of the air cylinder; First and second check valves installed on the air outlets of the third and fourth solenoid valves to open when the air pressure is greater than the pressure of the inner spring; When the one side contact is shorted by the driver, the first and fourth solenoid valves are supplied with power to lift and lift the air cylinder rod. If the other side is shorted, the air cylinder rod is supplied by supplying power to the second and third solenoid valves. An additional operation switch is installed to control the power supply to descend so that the rear object of the remote area as well as the remote area can be checked in advance and retracted. It is possible to prevent the occurrence of safety accidents in advance, as well as to solve the inconvenience caused by reversing and identifying the distant object.

Description

Device for Adjusting an Angle of Back Eye Camera for a Vehicle}

The present invention relates to a device for automatically adjusting the angle of a back eye camera for a vehicle. More specifically, the driver may switch the angle of the back eye camera for a vehicle used to accurately grasp the situation behind the vehicle in reverse. Invented so that it can be adjusted to smoothly identify the far distance and blind spots in the rear and to carry out safe driving.

In general, large buses are equipped with a back-eye camera to identify the situation behind them when reversing, allowing them to retreat while viewing the situation behind the display in the driver's seat.

In the conventional reverse situation display device, the back eye camera is fixedly installed at an angle at the rear roof of the bus, and a display is installed at the front part of the driver's seat so that when the driver puts the reverse gear, power voltage is supplied to the camera and the display. The rear image picked up by the camera is configured to be automatically displayed on the display.

However, in such a configuration, since the back-eye camera is fixedly installed with an initially set angle, the angle that can be captured by the camera is limited and a blind spot that cannot be captured by the camera occurs, thus providing a backward situation display device. Even though there is a safety accident often occurs because it is not able to grasp the blind spots, there is also the inconvenience that you must check while moving the vehicle backwards without knowing in advance the objects in the far distance.

The present invention has been made to solve the above-mentioned conventional problems, the driver can arbitrarily adjust the angle of the back-eye camera in the car to check the rear object in the distance as well as the blind spot in advance and back to the camera A vehicle bag that can prevent the occurrence of safety accidents due to reversing without recognizing blind spots and remote objects not captured by the rear, and also solves the inconvenience caused by reversing and identifying a remote object. The purpose is to provide an automatic angle control device for the eye camera.

An object of the present invention as described above, the reverse gear detection unit for detecting whether the gear shift is made to the reverse gear; A power supply unit for supplying power to the back eye camera and the display unit when it is detected that the shift gear is shifted from the reverse gear detector; A back eye camera mounted on a rear roof of the vehicle and capturing a rear situation; A rear situation display device comprising a display installed at a front of a driver's seat in a vehicle and displaying a rear situation captured by a back eye camera, the rear state display device having upper and lower limit switches for controlling a raising and lowering height of a piston therein; An air cylinder arranged between a rear portion of the vehicle and the vehicle to directly control an imaging angle of the camera; The cylinder rod is lowered by supplying compressed air to the upper or lower side of the air cylinder, which is installed between the upper and lower air supply units of the air cylinder and the air tank, respectively, and opened and closed in response to whether the operation switch operated by the user is on or off. Or first and second solenoid valves to be elevated; In the form of interlocking with the first and second solenoid valves, the air cylinder rod is lowered by discharging the compressed air existing in the lower or upper portion of the air cylinder to the outside, respectively, installed in the lower and upper air exhaust portions of the air cylinder. Or third and fourth solenoid valves to be elevated; First and second check valves installed on the air outlets of the third and fourth solenoid valves to open when the air pressure is greater than the pressure of the inner spring; When the one side contact is shorted by the driver, the first and fourth solenoid valves are supplied with power to lift and lift the air cylinder rod. If the other side is shorted, the air cylinder rod is supplied by supplying power to the second and third solenoid valves. This can be achieved by additionally installing an actuating switch that controls the power supply to descend.

Therefore, the driver can arbitrarily adjust the imaging angle of the back eye camera through the operation of the operation switch in the car, so that the blind object as well as the distant rear object can be checked in advance and reversed so that the blind spot is not captured by the camera and It is possible to prevent the occurrence of safety accidents due to reversing without recognizing the object in the far distance in the rear, as well as to solve the inconvenience of reversing and identifying the far object.

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

1 shows a block diagram of an apparatus of the present invention.

According to this, the actuating switch 13 is installed around the driver's seat as a seesaw switch. Normally, both of the contact points 13a and 13b are kept off and turned on for a pressed time when either side is pressed by the driver. The upper limit switch 53 or the lower limit switch 54 is maintained by the piston 51 of the air cylinder 5 by being connected in series with the upper and lower limit switches 53 and 54 in the air cylinder 5. When "off" is configured to automatically cut off the power supply voltage supplied to the solenoid valve of the first to fourth solenoid valve (10).

The back-eye camera 3 installed on the rear roof of the vehicle and capturing the situation in the rear is, unlike the prior art, is axially hung through the hinge 32 on the bracket 31 fixedly installed on the vehicle. In response to the variable length of the rod 52, the rotational direction of the hinge 32 in the vertical direction allows the imaging angle to be adjusted.

At this time, the air cylinder (5) is formed in the upper and lower air supply unit 55, 56 and the air exhaust unit 57, 58, respectively, so that the piston 51 can be raised or lowered according to the inflow direction of the compressed air. The upper and lower limit switches 53 and 54 for raising and lowering the height of the piston 51 are respectively provided inside the cylinder, and the lifting and lowering contacts 13a of the operation switch 13 are provided. 13b and the first to fourth solenoid valves 7 and 10 are connected in series with the power lines respectively, so that the piston 51 which is raised and lowered by the air supply from the lower part is positioned at the upper limit switch 53. As soon as it is turned off, the power applied to the first and fourth solenoid valves 7 and 10 for lifting control is cut off. On the contrary, the piston 51 lowered by the air supply from the upper side switches the lower limit switch 54. When it is "off" to reach the position of the first and The power applied to the solenoid valves 4, 7, 10, it is possible to ensure the safety By so blocking.

On the other hand, suppose that the driver's lifting contact 13a is "on" before the driver reverses the large bus or shifts the gear back to reverse and presses one side of the operation switch 13 to check the rear situation. If the output voltage of the power supply unit 2 does not reach the upper limit position of the elevating contact 13a of the operation switch 13 and the piston 51, the first and the upper limit switch 53 maintains " ON " Since these valves are opened because they are supplied to the fourth solenoid valves 7 and 10, the compressed air generated in the air tank 6 is supplied to the lower side air supply part 56 of the air cylinder 5 through the first solenoid valve 7. ) And the air present in the upper portion of the air cylinder (5) is discharged to the outside through the fourth solenoid valve 10 and the second check valve 12 connected to the air outlet (57).

Therefore, since the rod 52 of the air cylinder 5 and the piston 51 having the free end is lifted on the rear lower surface of the main body of the back eye camera 3, the lens part of the back eye camera 3 is further inclined toward the ground side. The camera can take images up to objects near the back of the bus.

At this time, the piston rod 52 of the air cylinder 5 is continuously elevated while the driver "on" the lifting contact 13a of the operation switch 13, the hand from the operation switch 13 during lifting When it is released, it stops at that position. When the upper limit switch 53 is "off" by the piston by the continuous push operation, the voltage applied to the first and fourth solenoid valves 7 and 10 is cut off, so that no further lifting is performed. Stop at that position and the camera is prevented from tilting excessively.

The second check valve 12 is provided with a pressure spring therein, the air cylinder (5) is discharged through the fourth solenoid valve 10 is not opened at the beginning when the fourth solenoid valve 10 is opened. When the discharge air pressure of the air pressure is greater than the pressure of the inner spring, the air is slowly released and the air is slowly released, thereby preventing the sudden rise of the rod 52 of the air cylinder 5, and the back eye camera 3 is sharply inclined. Can be prevented in advance.

Of course, the second check valve 12 has the first and fourth solenoid valves 10 in which the operation switch 13 is "off" by the driver or the upper limit switch 53 is "off" by the piston 51. Is " off " and closes at the moment when the air pressure discharged to the second check valve 12 side becomes smaller than the internal spring pressure.

On the other hand, when the driver presses the other side of the operation switch 13 and the lowering contact 13b is "on", the output voltage of the power supply unit 2 is equal to the lowering contact 13b of the operating switch 13. Since the valves are supplied to the second and third solenoid valves 8 and 9 through the lower limit switch 54, these valves are opened so that the compressed air generated in the air tank 6 is transferred to the air cylinder through the second solenoid valve 8. The air flowing into the upper air supply part 55 of (5) and present in the lower part of the air cylinder (5) is connected to the third solenoid valve (9) and the first check valve (11) connected to the air outlet (58). Through the outside.

Therefore, the rod 52 of the air cylinder 5 and the piston 51 on which the free end is axially lowered on the rear lower surface of the main body of the back eye camera 3 is lowered so that the lens portion of the back eye camera 3 is inclined upward more. This allows the camera to capture images from the back of the bus to objects in remote locations.

Even at this time, the piston rod 52 of the air cylinder 5 is continuously lowered while the driver "turns on" the lowering contact 13b of the operation switch 13, but the hand is lowered from the operation switch 13 during the lowering. Is released and stops at that position. When the lower limit switch 54 is "off" by the piston, the voltage applied to the second and third solenoid valves 9 is cut off, so that no further drop is made. Stopping at that position automatically prevents the camera from tilting excessively.

At this time, since the first check valve 11 also performs the same configuration and operation as the second check valve 12, detailed operation relations are omitted in order to avoid redundant description.

As described above, according to the present invention, an air cylinder is provided between the main body rear part of the back eye camera and the bus so that the driver can arbitrarily adjust the imaging angle of the back eye camera by operating an operation switch in the vehicle. In addition to blind spots that were not captured by the camera, remote objects in the distance can be checked in advance and reversed. It is a very useful invention that can be prevented in advance, as well as reversing and solving the inconvenience of identifying a distant object.

1 is a block diagram of an apparatus of the present invention.

Explanation of symbols on main parts of drawing

1: Reverse gear detection unit 2: Power supply unit

3: back eye camera 4: display

5: air cylinder 6: air tank

7-10: First to fourth solenoid valves

11,12: first and second check valve 13: operation switch

Claims (2)

A reverse gear detector (1) for detecting whether a gear shift is performed; A power supply unit (2) for supplying power to the back eye camera (3) and the display (4) when it is detected that the shift gear is shifted from the reverse gear detection unit (1); A back eye camera 3 installed on the rear roof of the vehicle to capture a situation behind the vehicle; A display 4 installed at the front of the driver's seat in the vehicle to display a rear situation captured by the back eye camera 3; The upper and lower limit switches 53 and 54 for controlling the raising and lowering height of the piston 51 are formed therein, and are arranged between the rear part of the back eye camera 3 and the vehicle and connected to the piston 51. An air cylinder (5) for directly controlling the imaging angle of the camera through the lifting and lowering of the camera; Installed between the upper and lower air supply parts 55 and 56 and the air tank 6 of the air cylinder 5, respectively, the air is opened and closed in response to on / off of the operation switch 13 operated by a user. First and second solenoid valves (7) (8) for supplying compressed air to the upper or lower side of the cylinder (5) to lower or raise the cylinder rod (52); In the form of interlocking with the first and second solenoid valves (7) (8), respectively installed in the lower and upper air exhaust portion (57) (58) of the air cylinder (5), the lower side in the air cylinder (5) or Third and fourth solenoid valves (9) (10) for discharging the compressed air existing in the upper portion to the outside so that the rod (52) of the air cylinder (5) is lowered or raised; First to be installed on the air outlet of the third and fourth solenoid valve (9) (10) to prevent the angular change of the angle of the back eye camera (3) that is opened when the air pressure is greater than the pressure of the inner spring And second check valves (11) (12); When the one-side lifting contact 13a is shorted by the driver, power is supplied to the first and fourth solenoid valves 7 and 10 so that the air cylinder rod 52 is lifted and the other downward contact 13b is closed. When the short circuit is applied to the second and the third solenoid valves (8) (9) to supply power to the air cylinder rod 52, characterized in that the additional operation switch 13 for controlling the power supply for lowering Automatic angle adjustment of the back eye camera. The method according to claim 1, The actuating switch 13 is installed around the driver's seat as a seesaw switch. In general, both of the contact points 13a and 13b remain in an off state, and when either side is pressed by the driver, the operating switch 13 remains in the on state for a pressed time. The upper and lower limit switches 53 and 54 in the air cylinder 5 are connected in series to each other so that the upper limit switch 53 or the lower limit switch 54 is turned off by the piston 51 of the air cylinder 5. When the first to fourth solenoid valve 10 of the auto back angle camera, characterized in that the power supply voltage supplied to the solenoid valve is configured to automatically shut off.