KR100993025B1 - Parking assistant device - Google Patents

Abstract

PURPOSE: A parking assistant apparatus is provided to create and display the predicted trace of a vehicle according to the turning direction and angle of a steering wheel using a counting sensor. CONSTITUTION: A parking assistant apparatus comprises a counting sensor(200), a data storage part(110), a rear camera(130), a graphic processing part(120), and a CPU(Central Processing Unit,100). The counting sensor is installed in the shaft of the steering wheel in a vehicle and detects the turning direction and angle of the steering wheel. The data storage part stores location data about a virtual parking line. The graphic processing part synthesizes virtual parking line images to be showed on a display part(140). The CPU generates a control signal based on the data signal of the counting sensor and the location data of the data storage part and outputs the control signal to the graphic processing part.

Description

PARKING ASSISTANT DEVICE {PARKING ASSISTANT DEVICE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parking assistant apparatus, and more particularly, to a parking assistant apparatus that can provide an expected movement trajectory of a vehicle according to a handle movement by providing a counting sensor on a handle shaft of the vehicle.

Along with the development of the vehicle, various convenience devices are installed inside and outside the vehicle to help the driver to drive more safely and conveniently, and in particular, assist the vehicle to easily perform backward driving and rear parking. Convenience devices have been developed and proposed.

For example, there is a rear sensor that is equipped with a distance sensor at the rear end of the vehicle to visually inform the driver of the distance between the vehicle and the rear obstacle, and also when the vehicle backs up, the rear of the vehicle can be photographed by the camera for the driver to see. Vehicle rear view cameras that display rear view images on monitors are one of the most widely used convenience devices.

However, since the conventional parking assistance devices employing such a rear sensor or rear camera merely detect the rear object and alarm or simply display the rear screen, active parking guidance information according to the movement trajectory of the vehicle. The driver could not provide a limit to increase the driver's convenience during the reverse parking of the vehicle.

As described above, there is a demand for the development of a parking guide device capable of assisting parking by analyzing an expected movement trajectory of the vehicle so that drivers can easily and quickly perform accurate parking even in a narrow parking space.

Looking at the conventional parking guide apparatus that meets the above object, by attaching an angle sensor or the like to the vehicle wheel wheel to detect the degree of distortion of the wheel wheel, it displays the expected movement path by transmitting and receiving data using the vehicle communication.

However, such a conventional parking guide device has the following problems.

First, there is a problem that the sensor can be damaged because the sensor is exposed to the external environment due to the structural characteristics of the sensor is attached to the wheel of the vehicle wheel.

In addition, when using the angular velocity sensor, there is a problem that the sensor malfunctions when the object such as scrap metal that affects the magnetic field near the wheel of the vehicle to malfunction.

In addition, by using the vehicle communication and transmitting and receiving data, there is a disadvantage that the repair replacement and installation of the device is not easy when a failure or the like occurs.

The present invention has been made to solve the above problems, an object of the present invention is to provide a rear image of the vehicle photographed through the rear camera as well as to provide the expected movement trajectory of the vehicle in addition to the rear image of the driver's rear parking convenience It is to provide a parking assistant device that can further improve.

The parking assistant apparatus according to the present invention for achieving the above object is provided in the handle shaft of the vehicle detects the steering wheel information including the rotation direction and the rotation angle of the steering wheel, and generates a data signal corresponding to each detected steering wheel information A counting sensor for outputting; A data storage unit for storing virtual parking line position data respectively matching to various handle information that can be detected from the counting sensor; A rear camera for photographing a rear image of the vehicle; A graphic processor configured to receive a rear image signal from the rear camera and synthesize a virtual parking line image representing an expected movement trajectory of the vehicle on the received rear image signal to display on the display unit; And performing a comparison operation based on the data signal received from the counting sensor and the virtual parking line position data stored in the data storage unit, thereby displaying the virtual parking line image that is variably changed according to the movement of the steering wheel. And a central processing unit for generating a control signal and outputting the control signal to the graphic processing unit.

According to the parking assistant device according to the present invention, by displaying the expected movement trajectory of the vehicle that changes according to the steering wheel operation of the driver in the form of an image, there is an effect that can guide to accurately and easily perform the parking.

Further, according to the parking assistant device according to the present invention, the counting sensor for calculating the expected movement trajectory of the vehicle is configured to be disposed on the handle shaft inside the vehicle, thereby preventing the sensor from malfunction or damage by the external environment. It can be, and has a remarkable effect that can be easily installed and applied to the vehicle already shipped.

Hereinafter, preferred embodiments, advantages, and features of the present invention will be described in detail. Prior to the description, the term "virtual parking line" used below is an image which is displayed on the monitor after calculating the expected movement trajectory of the vehicle based on the steering wheel movement according to the steering wheel operation of the driver. It consists of.

1 is a block diagram schematically showing the configuration of the parking assistant apparatus according to the present invention.

As shown in FIG. 1, the parking assistant device of the present invention includes a counting sensor 200, a rear camera 130, a graphic processor 120, a central processor 100, and data for measuring the operation and the rotation speed of the handle. It is configured to include a storage unit 110 and a display unit 140.

The rear camera 130 captures a rear image when the vehicle reverses and transmits the rear image to the graphic processor 120 in real time.

The graphic processor 120 receives the rear image signal input from the rear camera 130 and processes the rear image signal to be output from the monitor, and also processes the specific image based on the control signal output from the central processing unit 100. It plays a role of synthesizing the video signal transmitted from the rear camera 130 and displaying the same simultaneously.

The display unit 140 may be any type of device that can visually display a video signal such as a navigation device, a DMB display device, or a car TV.

The counting sensor 200 corresponds to a means for measuring, in real time, the steering wheel information generated during the driver's operation to the central processing unit 100. The handle information refers to information including a rotation direction, a rotation angle, and a rotation speed of the handle shaft 211.

The data storage unit 110 stores virtual parking line position data that matches each of the various handle information that can be obtained from the counting sensor 200.

The central processing unit 100 performs calculation processing of steering wheel information detected and transmitted from the counting sensor 200 and a comparison process with the virtual parking line data stored in the data storage unit 110 when the driver handles the steering wheel. A control signal for displaying the virtual parking line image on the screen of the display unit 140 is generated and output.

Hereinafter, with reference to the accompanying drawings, a method for variably generating a parking line based on the specific configuration of the counting sensor 200 mounted on the handle shaft 211 and the signal input from the counting sensor 200 of the present invention. This will be described in detail.

2 is a perspective view showing a first embodiment of the parking assistant apparatus of the present invention. Referring to FIG. 2, the counting sensor 210 employed in the first embodiment of the present invention includes a slit disk 212 and photo interrupts 217a, 217b, 217c, and the rotation direction of the handle shaft 211. The rotation angle and the rotation speed are detected.

The slit disk 212 is formed in a disk shape has a plurality of slits formed along the circumference, the handle shaft 211 is inserted into the center portion of the slit disk 212 by the rotation of the handle shaft 211 ) Will occur.

A plurality of first slits 213 having a predetermined interval on the same concentric circle on the slit disk 212 detect a rotation direction and a rotation angle of the handle shaft 211, and the first slit 213 is formed. The second slit 214 formed on a concentric circle different from the concentric circles is used for zeroing and detecting the rotation speed of the handle shaft 211 through the photo interrupt 217c.

The photo interrupt 217a is formed by a pair of light emitting diodes 215a and photo transistors 216a composed of light emitters such as infrared (IR), LED (LED), and the like. And arranged to face each other.

The counting sensor 200 configured as described above causes the slit disk 212 to rotate between the photo interrupts 217a by the rotation of the handle shaft 211 when the driver manipulates the handle. Therefore, the light emitted from the light emitting diode 215a is transmitted and blocked as the slit disk 212 rotates, and the photo interrupt 217a causes the light to pass through the slit of the slit disk 212. On / off pulse signals are generated depending on whether or not the photo transistor 216a has been reached. Preferably, the photo interrupt 217a is configured to generate a pulse signal every time the handle shaft 211 rotates by 9 ° so that the rotation angle of the handle shaft 211 is detected. The photo interrupts 217a and 217b may be arranged to have a phase difference of 4.5 ° to each other to determine the rotation direction.

That is, the parking assistant device according to the first embodiment of the present invention includes at least two pairs of photo interrupts 217a and 217b and a slit disk 212 through a counting sensor 200 provided in the handle shaft 211. A predetermined data signal according to the driver's steering wheel operation may be obtained in real time, and the data signal is transmitted to the central processing unit 100 electrically connected to the photo interrupt.

In addition, the data transmission between the counting sensor 200 and the central processing unit is a wired communication using a wireless communication method (for example, CAN communication) or a cable commonly used for transmitting and receiving data signals between physically separated devices. Any method may be employed.

In addition, an analog-to-digital converter (ADC) is connected to the counting sensor 200 so that the pulse signal detected from the counting sensor 200 is converted into a digital signal and then input to the central processing unit 100.

Through the above configuration, the central processing unit 100 specifically includes a data signal including a rotation angle signal containing information on the rotation angle of the handle shaft 211 and a rotation direction signal indicating left and right rotation directions of the handle. It is input in real time.

The rotation direction signal is used as data for tilting and changing the entire virtual parking line in the left or right direction of XX`, and the rotation angle signal is used as data for determining a specific degree of inclination of the variable virtual parking line. .

Hereinafter, a process and method of varying a virtual parking line using a data signal input from a counting sensor 200 mounted on a handle will be described.

The central processing unit 100 of the present invention calculates the current state of the handle, that is, the current rotation angle and the rotation direction through arithmetic processing using the data signal input from the counting sensor 200, and the rotation angle value with respect to the calculated rotation direction. By performing a process of comparing the virtual parking line position data stored in the data storage unit 110 to generate a control signal for displaying the virtual parking line image corresponding to the current rotation state of the handle on the display unit 140, This is output to the graphic processor 120.

The control signal refers to coordinate value information for outputting a virtual parking line at a specific position on the screen of the display unit 140.

That is, the central processing unit 100 refers to the data storage unit 110 to generate a control signal for determining the display position of the virtual parking line. The data storage unit 110 has various rotation angles at the left or the right. The coordinate value information corresponding to the data is stored in the form of a data table.

For example, when detecting the rotation angle of the counting sensor 200, if the handle shaft 211 is configured to generate a pulse signal every time the shaft rotates by 9 ° to detect the rotation angle, the data storage unit 110 is left And a rotation angle range such as "0 ° to 8 °, 9 ° to 17 °, 18 ° to 26 ° ..." for the right direction, wherein each rotation angle range has corresponding coordinates. The value information is 1: 1 matched.

When configuring the data table with the rotation angle range as described above, the coordinate value matching "0 ° ~ 8 °" is used as the reference parking line. The reference parking line 300 is a vehicle movement trajectory when a rotation wheel does not occur on the steering wheel and the vehicle wheel is in parallel with the longitudinal direction of the vehicle. Corresponds to

In addition, since the rotation angle constituting the data table is an angle value set based on the reference parking line 300, that is, a state in which no rotation occurs in the handle shaft 211, as a reference point, the rotation angle detected according to the movement of the handle. Also, the handle shaft 211 should be detected on the basis of a state in which rotation does not occur, and accordingly, the zero setting of the handle shaft 211 is necessary.

The parking assistant device of the present invention can easily set the zero point for counting the rotation angle of the handle shaft 211 through the second slit of the counting sensor 200, so that the absolute value of the rotation angle according to the steering wheel operation can be accurately calculated. do.

Through the above configuration, the central processing unit may calculate coordinate values for variably displaying the virtual parking line corresponding to the movement of the steering wheel, and the control signal corresponding to the calculated coordinate value is transferred to the graphic processing unit 120. Is entered.

The graphic processor 120 is preferably composed of an OSD (On Screen Display) chip, and a specific virtual parking line image based on a control signal input from the central processing unit 100 to a rear image input from the rear camera 130. Are synthesized and processed to be simultaneously displayed on the display unit 140.

The parking assistant apparatus of the present invention is configured to further include a parking line control switch 150 electrically connected to the graphic processor 120. Since the rear camera 130 provided in various vehicles has different mounting positions and angles of view, the rear image output to the display unit 140 is different from the perspective, and is displayed in various forms. The virtual parking line, which is synthesized and displayed on the screen, also needs to correct a display position to be suitable for a specific rear camera 130 mounted on a specific vehicle.

The parking line control switch 150 corresponds to a means for position correction of the virtual parking line as described above. That is, by changing both widths (XX`) and heights (YY`) of the virtual parking line generated and displayed on the screen of the display unit 140 through the above-described configuration, the size and position of the virtual parking lines 310 and 320 can be adjusted. have.

That is, the user can set the virtual parking line image suitable for the rear camera 130 installed in the vehicle by removing the parking line trajectory error by using the parking line adjusting switch 150.

3 is an example schematically showing a virtual parking line output screen displayed variably through the parking assistant device of the present invention.

As shown in FIG. 3, the display unit screen of the present invention displays a reference parking line 300 indicating a linear movement trajectory of the vehicle and virtual parking lines 310 and 320 representing an expected movement trajectory of the vehicle according to the steering wheel movement. have.

If the driver rotates the vehicle steering wheel to the right by a predetermined angle, a signal for the rotation angle and the rotation direction is detected from the counting sensor 200 provided in the vehicle steering shaft 211 and generated based on the signal. The virtual parking line 310, that is, the expected movement trajectory of the vehicle is turned to the left as shown in FIG. 3A to guide the driver's parking.

In addition, when the driver rotates the vehicle steering wheel to the left by a predetermined angle, the virtual parking line 320 is displayed to the right as shown in FIG. 3B to guide the expected movement trajectory of the vehicle.

Although the example of FIG. 3 illustrates a stationary state, the virtual parking lanes 310 and 320 displayed on the actual display unit 140 are provided with their positions changed in real time according to the movement of the handle.

4 is a perspective view showing a second embodiment of the counting sensor constituting the parking assistant apparatus of the present invention.

The counting sensor 220 according to the second embodiment of the present invention is provided on the handle shaft 211 of the vehicle like the counting sensor 210 of the first embodiment to detect the handle information including the rotation angle and the rotation direction of the steering wheel. do.

Referring to FIG. 4, the counting sensor 220 according to the second embodiment of the present invention alternates the first film tape 221 and the second film tape 222 along the outer circumferential surface of the handle shaft 211. Attached.

In addition, the upper region of the handle shaft 211 to which the first film tape 221 and the second film tape 222 are attached is emitted from the light emitting part 224a and the light emitting part 224a for irradiating light forward. The photo sensor 223a including the light receiving unit 225a for detecting the light is disposed to be spaced apart from the circumferential surface to which the film tapes 221 and 222 are attached. As the light emitted from the light emitter 224a, infrared (IR) or the like may be used.

The first film tape 221 is made of a material having a property of absorbing light incident on the film 221, the second film tape 222 is a material having a property of reflecting light incident on the film consist of.

When light emitted from the light emitting part of the photo sensor 223a is irradiated onto the first film tape 221, the light is absorbed and does not reach the light receiving part 225a, and the second film tape 222 When irradiated onto the light, the light is reflected and sensed by the light receiver 225a.

That is, the photo sensor 223a generates a pulse signal each time light is detected from the second film 222 disposed at a predetermined interval along the circumference of the handle shaft 211, thereby rotating the angle of the handle shaft 211. A data signal containing information can be generated and output.

In addition, in the configuration of the photo sensor, if the handle shaft 211 is configured, for example, when the attachment interval of the second film 222 is configured to generate a pulse signal every time it rotates by 9 °, two pairs of photo sensors It is possible to determine the rotational direction of the handle shaft 211 by arranging the 223a and 223b to have a phase difference of 4.5 °.

As described above, the data signal output from the photosensors 223a and 223b includes rotation angle information and rotation direction information, and the data signal is transmitted to the central processing unit 100 to perform the same processing as in the first embodiment. By going through the process, the virtual parking lines 210 and 220 corresponding to the current steering state can be displayed on the display unit 140 screen.

5 is a device configuration diagram showing a third embodiment of the counting sensor constituting the parking assistant device of the present invention.

The counting sensor according to the third embodiment of the present invention is basically configured to detect handle information including a rotation angle and a rotation direction of the handle through a wire 235 connected to the handle shaft 211.

Referring to FIG. 5, in the counting sensor 230 according to the third embodiment of the present invention, a wire 235 is connected to a predetermined region of an outer circumferential surface of the handle shaft 211. The wire 235 is preferably made of a metal material, and specifically, one end of the wire 235 is attached and fixed to an outer surface of the handle shaft 211, and the other end of the wire 235 is provided with the present invention. Attached and fixed to the rotary shaft 233 provided in the gear box 231 of a certain amount is wound.

When the rotation of the vehicle handle does not occur and the vehicle wheel is in a state parallel to the longitudinal direction of the vehicle, the wire 235 is not wound on the handle shaft 211 and one end thereof is attached to the outer surface of the handle shaft 211. Is present in a suspended state, and when the driver turns the handle, the wire 235 wound around the rotation shaft 233 of the gearbox 231 is released and at the same time the wire 235 hanging on the handle shaft 211 is handled. The circumferential surface of the shaft 211 is wound, and the degree of the winding is detected through a sensor unit provided in the gear box 231.

That is, the parking assistant apparatus according to the third embodiment of the present invention may acquire the rotation degree and the rotation speed information of the steering wheel by using the amount of the wire 235 wound on the handle shaft 211 according to the steering wheel operation by the driver. It is configured so that, more specifically, the amount of winding of the wire 235 is the rotation shaft generated by the winding and unwinding of the wire 235 connected to the handle shaft 211 during the rotation of the handle shaft 211 ( It detects through the rotation direction and the rotation angle of the 233.

The amount of the wire 235 is wound on the handle shaft 211 is detected through the sensor portion of the gearbox 231, the sensor portion of the slit disk 212 and the photo interrupt (217a, 217b, 217c) of the first embodiment Any one of the method used or the method using the first and second film tapes 221 and 222 and the photo sensors 223a and 223b of the second embodiment may be selected and configured.

The counting sensor shown in FIG. 5 shows the device configuration to which the slit disk 212 and the photo interrupts 217a, 217b, and 217c of the first embodiment are applied. As shown in FIG. 5, a wire 235 is wound around the rotating shaft 233 provided in the gearbox 231 to be rotated, and according to the unwinding and winding operation of the wire 235. The slit disk 212 provided in the rotary shaft 233 also rotates, and the degree of rotation of the slit disk 212 is detected through the photo interrupt 217a composed of the light emitting diode 215a and the photo transistor 216a. .

Therefore, the steering wheel information according to the steering wheel operation of the driver is transmitted to the rotary shaft 233 through the wire 235 of the present invention to detect this in real time by the sensor unit to output a predetermined data signal, the data signal is The central processing unit 100 is electrically connected to the photo interrupts 217a, 217b, and 217c, and the central processing unit 100 performs a calculation process of the input data signal and a comparison process with the virtual parking line data stored in the data storage unit. By doing so, the virtual parking line image corresponding to the current steering state is displayed on the display unit 140 screen.

The sensor unit according to the third embodiment of the present invention may achieve the same object even if the first and second film tapes 221 and 222 and the photo sensors 223a and 223b of the second embodiment are configured.

That is, the first film tape 221 and the second film tape 222 are alternately attached to each other along the outer circumferential surface of the rotation shaft 233 of the gearbox 231 of the present invention, and the light emission in the upper region By providing at least one photo sensor 223a, 223b composed of the unit 224a and the light receiving unit 225a, the handle information transmitted to the rotary shaft 233 through the wire 235 can be detected in real time.

The second and second film tapes 221 and 222 and the photo sensors 223a and 223b detect the rotation direction and the rotation angle of the rotation shaft 233 and the virtual parking lines 210 and 220 are generated through the second process. Since it is the same as that of the example, detailed description is abbreviate | omitted.

In addition, the rotation shaft 233 is provided with an elastic device (not shown) such as a ring spring, so that the rotation shaft 233 is rotated by the wire 235 connected to the handle shaft 211 to return to its original position It can be to have.

That is, when returning the rotationally operated handle to its original position, the wire 235, which is loosened in the rotation shaft 233 due to the return property imparted to the rotation shaft 233, is naturally wound on the rotation shaft 233 again. Can be lost.

As described above, according to the third embodiment of the present invention using the winding and unwinding operation of the wire 235, the following advantages can be obtained.

In general, the handle shaft 211 used in various vehicles is not standardized in diameter so that each vehicle has a different size.

Therefore, when the slit disk 212 according to the first embodiment of the present invention or the first and second film tapes 221 and 222 according to the second embodiment are mounted on the steering wheel shaft 211 of the vehicle, the steering wheels different for each vehicle are different. The various sizes of the slit disks 212 to 1, the second film tapes 221 and 222 should be manufactured according to the size 211, which may result in a decrease in the production and sales efficiency.

However, in the case of the counting sensor using the wire 235 according to the third embodiment of the present invention, the slit disks 212 to the first and second film tapes are formed on the rotary shaft 233 unified regardless of the vehicle type. 221 and 222, and the rotation information of the handle shaft 211 having various sizes for each vehicle is transmitted to the rotation shaft 233 as it is through the wire 235 connected to the handle shaft 211 so that the sensor unit can be detected. It is composed.

Therefore, simply connecting the wire 235 connected to the rotation shaft 233 of the gear box 231 to the handle shaft 211 of the target vehicle, detects the steering wheel information according to the steering wheel operation of the vehicle and virtual parking Since the line can be displayed, the installation work can be completed very conveniently without having to consider the sizes of the various handle shafts 211 for each vehicle, and there is no need to manufacture various types of counting sensors. There is an advantage to being possible.

6 is a device configuration diagram showing a fourth embodiment of the counting sensor constituting the parking assistant device of the present invention.

Referring to FIG. 6, the counting sensor 240 according to the fourth embodiment of the present invention includes a sensor 241 and a wireless transmitter 243 for directly measuring a physical quantity change of a handle, and the counting sensor 240 Is configured to be mounted to a predetermined area of the handle.

An acceleration sensor 241 and an angular velocity sensor may be used as the sensor 241 for directly measuring a change in physical quantity of the handle.

As the counting sensor according to the fourth embodiment of the present invention is installed on a handle that is exposed to the outside instead of the handle shaft 211, the handle information detected from the angular velocity sensor may be a wireless communication method, not a wired communication method. It is preferable to configure so as to be transmitted to, and the wireless communication method is preferably to use RF (Radio Frequency) wireless communication, but is not necessarily limited thereto. For example, a Bluetooth wireless communication method, which is widely used as a standard for wireless data communication between digital devices such as mobile phones and peripheral devices, may be applied.

The steering wheel information detection through the angular velocity sensor and the virtual parking line image output process are as follows.

The angular velocity information generated when the driver manipulates the steering wheel is measured by the angular velocity sensor attached to the steering wheel, and the measured acceleration information is transmitted in real time to the central processing unit 100 through the wireless transmitter 243.

The central processing unit 100 calculates the rotation angle through the integral operation of the angular velocity received from the wireless transmitter 243 and performs the arithmetic processing for comparing the calculated rotation angle with the virtual parking line data stored in the data storage unit. The virtual parking line image corresponding to the current steering state is displayed on the display unit 140 screen.

For reference, the data storage unit according to the fourth embodiment of the present invention also stores the virtual parking line position data respectively matched to various rotation angles of the steering wheel as in the first embodiment.

In the above, the angular velocity sensor is selected and configured to directly measure the physical quantity that changes when the handle is manipulated, so as to secure the handle information. Of course you can.

That is, the tilt sensor 241 detects an inclination change, that is, a rotation angle by using a phenomenon in which the vector changes when the acceleration sensor 241 is inclined, and displays a virtual parking line image corresponding to the detected rotation angle on the display unit 140 screen.

7 is an exploded perspective view showing a fifth embodiment of the counting sensor constituting the parking assistant device of the present invention, Figure 8a is a perspective view showing a state before the counting sensor is coupled to the handle shaft according to the fifth embodiment of the present invention 8B is an application state diagram illustrating the coupling completion state of FIG. 8A.

The counting sensor according to the fifth embodiment of the present invention operates to detect the rotation direction and the rotation angle of the handle shaft 211 in a manner similar to the second embodiment, but the fitting member 420 and the rotating member ( 410 is further provided and the film tapes 221 and 222 of the second embodiment are configured to be attached to the rotating member 410 instead of the handle shaft. Therefore, it is not necessary to consider various sizes of the handle shafts 211 for each vehicle. Work also offers strengths that can be completed very easily.

7 to 8, the counting sensor according to the fifth embodiment of the present invention is accommodated in the outer case 400 and the outer case 400 in which the sensor unit 430 is mounted, and the driver manipulates the handle. It is configured to include a fitting member 420 and the rotating member 410 is caused when the rotation operation.

The fitting member 420 of the present invention is preferably composed of a material having elasticity by itself, and specifically, it is made of sponge rubber, which is denser than general sponge but further includes a cavity than natural rubber or synthetic resin. It is good.

This is to elastically correspond to various handle shaft diameters for each vehicle model so as to be able to perform crimping to be described later.

The fitting member 420 is preferably configured in a cylindrical shape, the handle shaft receiving hole 421 is formed through the central axis, the handle shaft is fitted to the fitting member 420 through the receiving hole 421. It penetrates and can be fixedly fixed therein.

Rotating member 410 of the present invention is composed of a cylindrical shape of the inner hollow and the fitting member 420 is inserted therein, specifically, the outer circumferential surface of the fitting member 420 is the rotary member (such as through the adhesive) By being attached to the inner wall surface of the 410, the fitting member 420 is configured to be integrally coupled to the inside of the rotating member 410.

Therefore, when the driver manipulates the handle, the fitting member 420 surrounding the handle shaft rotates, and the rotational force of the fitting member 420 is rotated by the rotating member 410 accommodating the fitting member 420 therein. Is delivered to finally cause the rotation of the rotating member 410.

In addition, as shown in Figure 9, the rotating member 410 of the present invention, the first film tape 450 and the second film tape 460 are alternately attached to each other along the outer circumferential surface.

The first film tape 450 is made of a material absorbing light incident on the film, the second film tape 460 is made of a material reflecting light incident on the film, the film tape (450,460) As the light irradiated onto, infrared (IR) or the like can be used.

The outer case 400 of the present invention preferably surrounds the circumferential surface of the rotating member 410 and is configured in a cylindrical shape of the inner hollow to be accommodated in the inner space.

In addition, the outer case 400 ensures that the rotating member 410 can be stably rotated in the inner space during the rotation operation of the handle, and at the same time is attached to the outer peripheral surface of the rotating member 410 The first and second film tapes 450 and 460 and the inner wall surface of the outer case 400 may be configured to form a floating space spaced at a predetermined interval.

This is to prevent the film tapes 450 and 460 from being damaged by friction by the inner wall surface of the outer case 400 when the rotating member 410 rotates inside the outer case 400.

In order to achieve the above object, a fifth embodiment according to a preferred embodiment of the present invention, as shown in Figure 9, the first and second film tapes (450,460) on the outer peripheral surface of the rotating member 410 Attached but secured areas (480a ', 480b') that are not attached to the film tape at both corners, and as shown in Figure 10, facing the film tapes are not attached (480a ', 480b') On the inner wall surface of the outer case 400, that is, the upper and lower edge portions, the guide rails 480a and 480b are formed to protrude along the circumference thereof.

As described above, an interval space K is formed between the pair of guide rails 480a and 480b, and the film tapes 450 and 460 are attached when the rotating member 410 is inserted into the outer case 400. Is disposed in the separation space to maintain the floated state as it is possible to prevent the friction damage of the film tape as the rotation operation is performed.

In addition, corresponding to the guide rails 480a and 480b protruding from the outer case 400, predetermined guide grooves may be formed on the outer circumferential surface of the rotating member 410, that is, the film tape unattached regions 480a ′ and 480b ′. And the guide rails 480a and 480b are inserted into the guide grooves to guide the rotation of the rotating member 410 without departing from the outer case 400. Of course, it can also be configured to stably rotate.

The side of the outer case 400 of the present invention is mounted to the sensor unit 430, the sensor unit 430 serves to detect the rotation direction and the rotation angle of the rotating member 410 caused when the handle operation. The detected data information is transmitted to the central processing unit 100 through wired or wireless communication.

The sensor unit 430 emits light to the rotating member 410 to which the first film tape 450 and the second film tape 460 are attached, and is emitted from the light emitting unit and is emitted from the second film tape. It is configured to include at least one photo sensor composed of a light receiving unit for detecting the light reflected from the to be able to detect the amount of rotation and the rotation direction of the rotating member 410. Accordingly, a sensor penetrating through the thickness of the light emitted from the sensor unit 430 may reach the film tapes 450 and 460 in the side region of the outer case 400 corresponding to the area where the sensor unit 430 is attached. A window (Fig. 10: 47) is provided.

Since the rotation angle detection principle using the sensor unit 430 and the first and second film tapes 450 and 460 is the same as in the above-described second embodiment, a detailed description thereof will be omitted.

As described above, in the counting sensor according to the fifth embodiment of the present invention, the rotation of the handle shaft generated when the handle is operated causes the rotation of the fitting member 420 surrounding it, and is provided to the fitting member 420. The rotational force is transmitted to the rotating member 410 that accommodates it, and generates a rotational motion of the rotating member 410, and by detecting the sensor unit, it is possible to grasp the rotation angle and the rotation direction of the handle.

In addition, the counting sensor according to the fifth embodiment of the present invention is configured to enable the separation and coupling of the counting sensor through the opening and closing operations as follows so that the installation and disassembly of the handle shaft can be easily performed.

Referring to FIG. 8A, each of the fitting member 420, the rotating member 410, and the outer case 400 of the present invention is cut to form a symmetrical structure by dividing the handle member passing through the central axis thereof.

That is, two fitting members 420 and two rotating members 410 are combined to form one fitting member 420 and a rotating member 410, and the two divided outer cases 400 are folded ( 440) is configured to enable the expansion and closing operation.

Therefore, when each of the fitting member 420 and the rotating member 410 is inserted into each of the divided outer cases 400 and the handle shaft is disposed at the center thereof, the outer case 400 is closed, and the outer case ( The fitting member 420 accommodated and dividing at 400 is elastically compressed to the handle shaft to be fixedly coupled to the fitting member 420.

In addition, the combined outer case 400 can be firmly coupled and fixed through various conventional fastening means such as bolting coupling or clip fastening.

Since the counting sensor according to the second embodiment of the present invention mounts the first and second film tapes 221 and 222 on the steering wheel shaft 211 of the vehicle, the various types of the first sensors correspond to different steering wheel shaft sizes 211 for each vehicle. The second film tapes 221 and 222 should be manufactured, and thus, a disadvantage may occur in that the production and sales efficiency thereof decreases.

However, the counting sensor according to the fifth embodiment of the present invention attaches the first and second film tapes to the rotating member 410 whose size is unified instead of the handle shaft, and the rotating member 410 has its own elastic force. By being configured to be mounted on the handle shaft through the elastic pressing of the holding member 420, there is an excellent effect that can be installed in the standardized counting sensor regardless of the handle shaft diameter different according to the vehicle type.

Although specific embodiments of the present invention have been described and illustrated above, it will be apparent that various modifications may be made by those skilled in the art without departing from the technical spirit of the present invention.

For example, when the rotation wheel does not occur in the vehicle handle and the vehicle wheel is in a state parallel to the longitudinal direction of the vehicle, the wire of the present invention described and illustrated above is connected to the handle shaft in a point state and the rotation shaft is Although configured to be wound, on the contrary, the same purpose can be achieved even if it is wound on the handle shaft and connected to the rotating shaft in a point state, or configured to be wound around a certain amount on both the handle shaft and the rotating shaft.

Such modified embodiments should not be understood individually from the spirit and scope of the present invention, but should fall within the claims appended to the present invention.

The parking assistant apparatus according to the present invention is configured to arrange a sensor for detecting an expected movement trajectory of the vehicle on a handle shaft inside the vehicle, thereby preventing a problem that the sensor may malfunction or be damaged by an external environment, It can be easily installed and applied to the old vehicle, so the industrial applicability is very high.

1 is a block diagram schematically showing the configuration of the parking assistant apparatus according to the present invention.

Fig. 2 is a perspective view showing a first embodiment of the parking assistant apparatus of the present invention.

3a and 3b is an example schematically showing a virtual parking line output screen that is displayed variably through the parking assistant device of the present invention.

4 is a perspective view showing a second embodiment of a counting sensor constituting the parking assistant device of the present invention;

5 is a device configuration diagram showing a third embodiment of the counting sensor constituting the parking assistant device of the present invention.

6 is a device configuration diagram showing a fourth embodiment of the counting sensor constituting the parking assistant device of the present invention.

7 is an exploded perspective view showing a fifth embodiment of the counting sensor constituting the parking assistant apparatus of the present invention.

Figure 8a is a perspective view showing a state before the counting sensor is coupled to the handle shaft according to a fifth embodiment of the present invention.

FIG. 8B is an application state diagram illustrating the mating completion state of FIG. 8A; FIG.

9 is a perspective view showing a rotating member to which the first and second film tapes are attached.

10 is a partial cutaway view of the outer case according to the fifth embodiment of the present invention.

** Description of symbols for the main parts of the drawing **

100: central processing unit 110: data storage unit

120: graphics processing unit 210, 220: counting sensor

211: handle shaft 212: slit disc

213: first slit 214: second slit

217a, 217b, 217c: Photo Interrupt

310, 320: virtual parking line

221,450: first film tape 222,460: second film tape

223a, 223b: photo sensor 231: gearbox

233: rotating shaft 235: wire

241: acceleration sensor 400: outer case

410: rotating member 420: fitting member

Claims (18)

delete A parking assistant device for displaying a virtual parking line indicating an expected movement trajectory of a vehicle on a display unit. A counting sensor provided on a handle shaft of the vehicle to detect steering wheel information including a steering direction and a rotation angle of the steering wheel, and to generate and output a data signal corresponding to the detected steering wheel information; A rear camera for photographing a rear image of the vehicle; A graphic processor configured to receive a rear image signal from the rear camera and synthesize a virtual parking line image representing an expected movement trajectory of the vehicle on the received rear image signal and display the image on the display unit; And A central processor configured to perform an operation based on a data signal received from the counting sensor so as to display the virtual parking line image that is variably changed according to the movement of the handle to be displayed on the display unit; The counting sensor A slit disk having a plurality of slits formed along a circumference thereof and coupled to the handle shaft to be rotated; And And a light emitting diode and a photo transistor, each pair being configured to include at least one photo interrupt arranged opposite to each other with a thickness portion of the slit disk interposed therebetween. The method of claim 2, A plurality of slits formed on the same concentric circle to detect a rotation angle and a rotation direction of the handle shaft; And And a second slit formed on a concentric circle separate from the concentric circle, the second slit for sensing the zero point setting and the rotational speed of the handle shaft. A parking assistant device for displaying a virtual parking line indicating an expected movement trajectory of a vehicle on a display unit. A counting sensor provided on a handle shaft of the vehicle to detect steering wheel information including a steering direction and a rotation angle of the steering wheel, and to generate and output a data signal corresponding to the detected steering wheel information; A rear camera for photographing a rear image of the vehicle; A graphic processor configured to receive a rear image signal from the rear camera and synthesize a virtual parking line image representing an expected movement trajectory of the vehicle on the received rear image signal and display the image on the display unit; And A central processor configured to perform an operation based on a data signal received from the counting sensor so as to display the virtual parking line image that is variably changed according to the movement of the handle to be displayed on the display unit; The counting sensor First and second film tapes alternately attached to each other along the outer circumferential surface of the handle shaft; And At least one photo sensor comprising a light emitting unit for irradiating light to the handle shaft to which the first film tape and the second film tape are attached, and a light receiving unit for detecting the light emitted from the light emitting unit and reflected from the second film tape; Configured to include, The first film tape is made of a material that absorbs light incident on the film, the second film tape is a parking assistant device, characterized in that made of a material that reflects the light incident on the film. The method according to claim 2 or 4, The apparatus may further include a data storage configured to store virtual parking line position data respectively matched to various handle information that may be detected from the counting sensor. The central processing unit generates a control signal for displaying the virtual parking line image on the display unit by performing a comparison operation based on the data signal received from the counting sensor and the virtual parking line position data stored in the data storage unit. Outputs the control signal to a graphic processor; The control signal output from the central processing unit is coordinate value information of the display unit, The virtual parking line position data of the data storage unit stores the coordinate value information corresponding to the left and right rotation angles of the steering shaft in the form of a data table. The method according to claim 2 or 4, And an analog-to-digital converter (ADC) for converting the signal output from the counting sensor into a digital signal. The method according to claim 2 or 4, And the graphics processor includes an on screen display (OSD) chip. A parking assistant device for displaying a virtual parking line indicating an expected movement trajectory of a vehicle on a display unit. A counting sensor provided on a handle shaft of the vehicle to detect steering wheel information including a steering direction and a rotation angle of the steering wheel, and to generate and output a data signal corresponding to the detected steering wheel information; A rear camera for photographing a rear image of the vehicle; A graphic processor configured to receive a rear image signal from the rear camera and synthesize a virtual parking line image representing an expected movement trajectory of the vehicle on the received rear image signal and display the image on the display unit; And A central processor configured to perform an operation based on a data signal received from the counting sensor so as to display the virtual parking line image that is variably changed according to the movement of the handle to be displayed on the display unit; The counting sensor A wire having one end fixed to the handle shaft; A rotating shaft to which the other end of the wire is attached and fixed; A sensor unit detecting a rotation direction and a rotation angle of the rotation shaft generated by the winding and unwinding of a wire connected to the handle shaft when the handle shaft is rotated; And Parking assistant device, characterized in that configured to include a gear box for receiving the rotary shaft and the sensor unit therein. The method of claim 8, The parking assistant device, characterized in that the wire is made of a metal material. The method of claim 8, The sensor unit A slit disk having a plurality of slits formed along the circumference and inserted into the rotating shaft to rotate; And And a light emitting diode and a photo transistor, each pair being configured to include at least one photo interrupt arranged opposite to each other with a thickness portion of the slit disk interposed therebetween. The method of claim 8, The sensor unit First and second film tapes alternately attached to each other along the outer circumferential surface of the rotary shaft; And At least one photo sensor comprising a light emitting unit for irradiating light to the rotary shaft attached to the first film tape and the second film tape and a light receiving unit for emitting light emitted from the light emitting unit and reflected from the second film tape. Configured to include, The first film tape is made of a material that absorbs light incident on the film, the second film tape is parking assistant device, characterized in that made of a material that reflects the light incident on the film. A parking assistant device for displaying a virtual parking line indicating an expected movement trajectory of a vehicle on a display unit. A counting sensor provided on a handle shaft of the vehicle to detect steering wheel information including a steering direction and a rotation angle of the steering wheel, and to generate and output a data signal corresponding to the detected steering wheel information; A rear camera for photographing a rear image of the vehicle; A graphic processor configured to receive a rear image signal from the rear camera and synthesize a virtual parking line image representing an expected movement trajectory of the vehicle on the received rear image signal and display the image on the display unit; And A central processor configured to perform an operation based on a data signal received from the counting sensor so as to display the virtual parking line image that is variably changed according to the movement of the handle to be displayed on the display unit; The counting sensor A member in which a handle shaft receiving hole is formed in a central axis, the fitting member fixing the handle shaft to the inside of the receiving hole; A rotating member configured to accommodate the fitting member in the inner hollow as an inner hollow cylindrical member, the rotation being caused by the fitting member which rotates when the handle is operated; An outer case surrounding the rotating member and accommodated in an inner space, the outer member configured to rotate in the inner space when the handle is rotated; And Is mounted to the side of the outer case is configured to include a sensor unit for detecting the rotation direction and the rotation angle of the rotating member caused when the handle operation, The rotating member is attached to the first film tape and the second film tape alternately along each other along the outer peripheral surface thereof, The sensor unit includes at least one light emitting unit for irradiating light to a rotating member to which the first film tape and the second film tape are attached, and a light receiving unit for detecting the light emitted from the light emitting unit and reflected from the second film tape. Includes a photo sensor, The first film tape is made of a material that absorbs light incident on the film, the second film tape is a parking assistant device, characterized in that made of a material that reflects the light incident on the film. 13. The method of claim 12, The fitting member is made of a sponge rubber (Sponge Rubber) material and its outer circumferential surface is fixed to the inner wall surface of the rotating member, the parking assistant is characterized in that the fitting member is integrally coupled to the rotating member. The method of claim 13, The fitting member, the rotating member and the outer case are each cut based on the handle shaft to form a symmetrical structure, The outer case is configured to enable folding and closing operation of the folding method, and the fitting member accommodated and divided into the outer case when the outer case is closed is elastically compressed to the handle shaft to be fixedly coupled to the inside of the fitting member. Parking assistant apparatus, characterized in that. The method of claim 13, Guide rails protrude along the circumference of the upper and lower edges of the inner wall of the outer case, respectively, between the first and second film tape attachment regions of the rotating member inserted into the outer case and the inner case inner wall. The parking assistant apparatus which provides the space which floated. A parking assistant device for displaying a virtual parking line indicating an expected movement trajectory of a vehicle on a display unit. A counting sensor mounted to a steering wheel of the vehicle and including a angular velocity sensor for measuring a change in angular velocity of the steering wheel and a wireless transmitter for wirelessly transmitting angular velocity information detected from the angular velocity sensor; A data storage unit for storing virtual parking line position data respectively corresponding to various rotation angles of the steering wheel; A rear camera for photographing a rear image of the vehicle; A graphic processor configured to receive a rear image signal from the rear camera and synthesize a virtual parking line image representing an expected movement trajectory of the vehicle on the received rear image signal to display on the display unit; And By calculating the rotation angle of the steering wheel through the integral operation of the angular velocity received from the wireless transmission unit, and comparing the calculated rotation angle with the virtual parking line data stored in the data storage unit, the virtual parking line image corresponding to the current steering wheel state And a central processing unit for generating a control signal for display on the display unit and outputting the control signal to the graphic processing unit. A parking assistant device for displaying a virtual parking line indicating an expected movement trajectory of a vehicle on a display unit. A counting sensor mounted on a steering wheel of the vehicle and including an acceleration sensor for measuring an acceleration change of the steering wheel and a wireless transmitter for wirelessly transmitting the acceleration information detected from the acceleration sensor; A data storage unit for storing virtual parking line position data respectively corresponding to various rotation angles of the steering wheel; A rear camera for photographing a rear image of the vehicle; A graphic processor configured to receive a rear image signal from the rear camera and synthesize a virtual parking line image representing an expected movement trajectory of the vehicle on the received rear image signal to display on the display unit; And By calculating the rotation angle of the steering wheel through arithmetic processing using the acceleration information received from the wireless transmitter, and comparing the calculated rotation angle with the virtual parking line data stored in the data storage unit, the virtual parking line corresponding to the current steering state And a central processing unit for generating a control signal for displaying an image on the display unit and outputting the control signal to the graphic processing unit. 18. The method according to claim 16 or 17, The wireless transmitting unit and the central processing unit parking assistant device, characterized in that for transmitting and receiving data using a radio frequency (RF) wireless communication or Bluetooth (BlueTooth) wireless communication method.

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