KR101168243B1 - Wiring apparatus for vehicle with rear monitoring camera - Google Patents

Abstract

PURPOSE: A wiring system of a vehicle having a rear monitoring camera is provided to easily perform the electric wiring work by reducing the number of electric wires between a receiver and a display terminal. CONSTITUTION: A wiring system(100) of a vehicle having a rear monitoring camera comprises a receiver(1), a display terminal(70), a signal distributor(60), a wireless signal line(41), and a camera image line(44). The receiver comprises a wireless receiving module and a circuit board. The wireless receiving module processes wireless signals received by a plurality of antennas. The circuit board is electrically connected to a camera module. The display terminal displays captured image information and the wireless signals and supplies first and second DC(Direct Current) to a plurality of modules. The signal distributor divides the wireless signals synthesized in the receiver and individually outputs the divided wireless signals to the display terminal. The wireless signal line is connected between the receiver and the signal distributor and transmits the wireless signals and the first DC. The camera images line is connected between the receiver and the display terminal and transmits the captured image information and the second DC.

Description

WIRING APPARATUS FOR VEHICLE WITH REAR MONITORING CAMERA}

The present invention is to efficiently process the electrical wiring in the case of installing the rear view surveillance camera in the housing equipped with the wireless receiving antenna.

BACKGROUND ART In general, vehicles equipped with navigation devices as vehicle auxiliary devices are increasing. Such a navigation device provides a visual location of vehicle location on a map that receives radio waves from GPS satellites and displays them on a screen so that a driver can easily find a destination.

When the driver reverses the vehicle, images captured by the surveillance camera are displayed on a dedicated screen or a navigation device so that the driver can easily grasp the rear of the vehicle to prevent a safety accident and to induce a smooth parking.

Examples of such technology for vehicle rear monitoring are Korean Utility Model Registration 20-0304156, entitled "Vehicle Rear Monitoring System," and Korean Patent Registration 10-0778760, entitled "Vehicle Rear Monitoring System." According to this prior art, the surveillance camera is installed in the through hole formed in the license plate of the rear of the vehicle. In addition, there is a Korean Patent Registration No. 10-0507408, titled "Rear Surveillance Camera Installed on the Rear Spoiler of a Vehicle." do.

An example of a technology having a digital broadcasting reception and rear monitoring function is Korean Patent Application Publication No. 10-2010-0137883 entitled "Vehicle Antenna Device", and accordingly, it is a digital multimedia broadcasting (DMB) in a housing installed at the rear of the vehicle. A wireless antenna module for reception and a rear surveillance camera for rear surveillance are provided, and a technology for wirelessly transmitting a broadcast signal received from the wireless antenna module and image information received from the rear surveillance camera to the outside is disclosed. This prior art is to install a wireless antenna module and rear view surveillance camera in a housing to reduce the appearance damage of the vehicle.

However, the prior art should include a transmitting module for wirelessly transmitting broadcast signals and image information to an antenna device and a receiving module for receiving a wireless signal to a display device. Such expensive transmission module and receiving module should be provided. This increases the economic burden. In this prior art, although the antenna device and the display device are described as being electrically connected to each other by using a connection cable and a connector, specifically, wiring of a cable connected for power and signal transmission required for a module mounted on a circuit board and an electric device There is no specific description of the treatment.

Receiving antennas for satellite DMB broadcasting or terrestrial DMB broadcasting, antennas for receiving radio waves from GPS satellites, and FM receiving antennas are preferred to be installed externally in consideration of reception sensitivity. There is a situation. Here, the method of drawing out the electric wire for wired transmission to the display terminal from the outside of the vehicle to the inside of the vehicle requires a hole in the ceiling of the vehicle, so that the exterior is severely damaged and the waterproofing is required to prevent the perforated portion from rusting.

Taking this into account, the electrical wiring is pushed out of the trunk through the rubber packing that closes the rim of the rear window, and then it is inserted between the hole or installation groove that connects the rear magnet with the interior of the vehicle and brought to the front of the vehicle. It is connected to the installed display terminal. However, as more electric devices are provided to additionally provide additional services such as broadcast reception function and rear monitoring function, the electric wiring becomes more complicated and the installation work becomes more difficult. Moreover, when electrical wiring is exposed to the outside of the vehicle, it is aesthetically unfavorable, and efforts are needed to reduce the electrical wiring, considering the tendency to reduce the exposed area as much as possible.

As an auxiliary device for implementing the wireless reception function and the rear monitoring function for the driver's convenience, it connects with the prior art which installed the electric device and accessories externally, and improves these and other problems, so as to service the quality convenience function and the wiring work. It is required to be easy, simple and efficient.

Korea Utility Model Registration 20-0304156 Korean Patent Registration No. 10-0778760 Korea Patent Registration No. 10-0507408 Korea Patent Publication No. 10-2010-0137883

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One aspect of the present invention can be easily and conveniently wired to connect the electrical device and accessories in installing the vehicle auxiliary device for driver convenience.

Another aspect of the present invention is to reduce the number of electrical wiring by connecting the modules installed in the housing with a single ground wire.

Another aspect of the invention is to configure the electrical circuit so that the functional modules in the outer housing to operate stably without mutual interference.

To this end, a vehicle wiring apparatus having a rear monitoring camera according to an embodiment of the present invention includes a circuit electrically connected to a wireless receiving module for processing a wireless signal received by an antenna and a camera module for processing image information captured by a rear camera. A receiver having a substrate; A display terminal receiving and displaying the wireless signal and the captured image information and supplying independent first and second DC powers to respective modules of the receiver; A signal splitter electrically connecting the receiver and the display terminal and separately outputting the separated signal to the display terminal by separating a radio signal synthesized by the receiver; A wireless signal line connected between the receiver and the signal splitter to transmit the wireless signal and the first DC power source; And a camera video line connected between the receiver and the display terminal to transmit the captured image information and the second DC power supply.

The display terminal is located at the front of the vehicle, the receiver is mounted on the vehicle body in an external type, and the receiver is provided on a housing for accommodating the circuit board, a support plate for supporting the lower part of the housing, and provided on one side of the housing and drawn out to the outside. It includes a protective cap for protecting the magnet, a magnet embedded in the support plate, a shielding film is installed between the wireless receiving module and the camera module installed in the housing to block the high frequency.

The circuit board passes through a broadcast signal and a GPS satellite signal received by the wireless receiving module and selectively passes the first DC power source to separate the first DC power source and the received radio signal AC / DC separation unit Including, but the AC / DC separator includes a DC blocking capacitor and a low pass filter.

The circuit board may be connected to a common ground between the electrical device using the first DC power supply and the electrical device using the second DC power supply with a single ground line, and one side of the ground line may prevent interference due to a high frequency signal between the electrical devices. The inductor is connected, and the other end of the ground line is grounded to the vehicle body.

The wireless signal line synthesizes and transmits a DMB broadcast signal and a GPS satellite signal or an FM signal through one integrated signal line, and transmits the first DC power through one wireless DC power line.

The camera video line transmits photographed image information through the video line and transmits a second DC power through the camera power line, wherein the second DC power is a reverse power provided to the reverse lamp, and the reverse power is supplied to the reverse lamp. A reverse sensing unit for detecting whether the reverse according to the reverse power and a reverse power selection switch for switching to supply the reverse power to the camera power line under the control of the reverse sensing unit.

The vehicle wiring apparatus having the rear surveillance camera according to the embodiment of the present invention as described above can easily and simply handle the electrical wiring work by reducing the number of electrical wiring between the receiver and the display terminal installed externally as an auxiliary device for a vehicle.

In addition, the vehicle wiring apparatus having a rear surveillance camera according to an embodiment of the present invention is easy to finish into the rubber packing of the glass window frame to prevent the wiring exposed to the outside of the vehicle body.

In addition, a vehicle wiring apparatus having a rear surveillance camera according to an embodiment of the present invention can stably provide a convenient function applied to a display terminal by preventing signal interference between modules installed in a housing of a narrow receiver.

1 is a block diagram of a vehicle wiring apparatus having a rear view surveillance camera according to an embodiment of the present invention.
2 is a view for explaining the internal structure of the external receiver of FIG.
3 is a block diagram illustrating an electrical circuit configuration of the external receiver of FIG. 1.
4 is a view for explaining the structure of the wireless signal line and the camera image line of FIG.
5 is a flowchart illustrating an operation of a vehicle wiring apparatus having a rear view surveillance camera according to an embodiment of the present invention.

A vehicle wiring apparatus having a rear surveillance camera according to the present invention describes a process of installing a wireless reception module and a rear surveillance module together in a housing and simply handling a wiring operation for electrically connecting each module and a display terminal. The connection method of the electrical wiring in such a vehicle wiring apparatus can be clearly understood through the embodiment described below.

In the exemplary embodiment, only the radio receiving module and the camera module are installed in the housing to provide the geographic information service, the DMB broadcasting or the FM broadcasting service, and the rear image service using the surveillance camera. The type of module and the device specification can be selectively configured according to the use environment and the characteristics of the service provided. It is to be noted that the efficiency of electrical wiring work between the display terminal in front of the vehicle and the electrical device installed in the vehicle body, especially in the rear of the vehicle, can be efficiently provided, and the convenience function can be stably provided without degrading the service function.

Hereinafter, a wiring apparatus of a vehicle having a rear surveillance camera according to an embodiment of the present invention will be described with reference to the accompanying drawings.

As can be seen in Figure 1, the vehicle wiring apparatus 100 having a rear view surveillance camera according to an embodiment of the present invention is connected to the radio signal line 41 of the receiver 1, the receiver 1 provided in the rear of the vehicle And a signal distributor 60 for distributing the received signal using a filter, a display terminal 70 provided at the front of the vehicle, and an image recording apparatus 80 for recording or reproducing an image captured by a camera.

The display terminal 70 and the receiver 1 which are located at the front and rear of the vehicle are separated from each other and are electrically connected for signal transmission and power supply.

The receiver 1 is externally mounted on the outside of the vehicle body and is equipped with a plurality of modules for providing a convenient function for the driver inside the housing, and the display terminal 70 at the front of the vehicle via the electrical wiring 40. Connected. As shown in FIG. 2, the electrical wirings 40 are separated from each other by two wirings 41 and 44 and drawn out of the housing 2. The wireless signal line 41 transmits a signal received from the wireless receiving module 10 to the display terminal 70, and the camera image line 44 captures rear image information obtained by photographing the camera module 20. It serves to transmit to the display terminal 70. The internal structure of the receiver 1 and the electric circuit configuration will be described later in detail with reference to the drawings.

The display terminal 70 includes a driver convenience function, for example, a navigation function for providing geographic information by using a GPS satellite signal, a function for receiving a DMB broadcast signal to watch a DMB broadcast, a function for providing an FM broadcast, and photographing with a camera. It may include a function of providing a rear image.

The display terminal 70 includes a screen, operation buttons, and a plurality of connection terminals C, D, and G for receiving a signal and image information provided from the receiver 1 and simultaneously supplying power. Here, the image input terminal C is connected to the terminal video signal line 44A to receive the image of the rear camera, and the DMB input terminal D is connected to the DMB signal line 41A to receive the DMB signal, and the GPS input terminal ( G) is connected to the GPS signal line 41B and receives a GPS satellite signal.

The reverse power source 91 selectively supplies the power to the reverse lamp 90 according to the reverse gear operation by the driver, and the method of supplying the reverse power according to the reverse gear operation is a well-known technique, and thus a detailed description thereof will be omitted.

The reverse sensing unit 61 detects whether or not the reverse direction according to the state in which the power is supplied from the reverse power source 91 to the reverse lamp 90, and the reverse power source selection switch 62 and the image selection switch 63 are detected. The control signal is applied to perform a switching operation. The manner in which the backward sensing unit 61 detects the reverse need not be particularly limited and may be determined based on, for example, the voltage level of the reverse power source.

The reverse power selection switch 62 is connected between the camera video line 44 and the reverse power 91 to switch to selectively supply the reverse power according to the control of the reverse sensing unit 61.

The image selection switch 63 is connected at one side to the receiver 1 via the camera image line 44 and at the other end to the image input terminal C of the display terminal 70 via the terminal image signal line 44A. Or to the video recording device 80 through the video recording signal line 44B. The image selection switch 63 connects the camera video line 44 and the terminal video signal line 44A or the camera video line 44 and the recorded video signal line 44B under the control of the backward sensing unit 61. .

Referring to FIG. 2, the receiver 1 is provided on a housing 2 for accommodating electrical devices and accessories, a support plate 4 for supporting the lower part of the housing 2 for installation in a vehicle body, and a rear side of the housing 2. It includes a protective cap (6) for protecting the electrical wiring 40 drawn out.

A plurality of magnets 5 may be embedded in the support plate 4 to be attached to the metal body.

The housing 2 is made of reinforced plastic resin to protect the electrical devices and accessories therein, and provides a circuit board 30 electrically connected to the electrical wiring 40 on the inner bottom. The wireless receiving module 10 and the camera module 20 are mounted on the circuit board 30.

DMB antenna 11 is shown in a non-contact state with the inner surface of the housing 2, the antenna array position can be modified or adjusted in consideration of the reception sensitivity. The lens 21 of the camera module 20 is fixedly coupled to the viewing window 3 through which one side passes through the rear of the housing 2 so as to photograph the rear of the vehicle.

The wireless receiving module 10 and the camera module 20 may be installed in a narrow housing 2, and a shielding film 7 may be installed between the two modules to prevent mutual interference by high frequency signals. The shielding film 7 is made by coating a high-frequency cut film on the surface and installed to surround the camera module 20.

As can be seen in FIG. 3, the wireless receiving module 10 and the camera module 20 are electrically connected to the circuit board 30, and the wiring and the wireless signal line of the circuit board 30 in the protective cap 6. 41 and the camera image line 44 are electrically connected.

The wireless receiving module 10 includes a DMB antenna 11 for receiving a DMB broadcast signal and a GPS / FM antenna 12 for receiving a GPS satellite signal or an FM broadcast signal. In this embodiment, the GPS / FM antenna 12 selectively applies any one of a GPS antenna for receiving a GPS satellite signal or an FM antenna for receiving an FM broadcast signal, but is not limited thereto. It can also be applied in a manner provided.

The amplifier 31 includes a DMB amplifier 32 and a GPS / FM amplifier 33.

The DMB amplifier 32 amplifies the DMB broadcast signal received by the DMB antenna 11, and the GPS / FM amplifier 33 amplifies the GPS satellite signal or FM broadcast signal received by the GPS / FM antenna 12. do.

The AC / DC separation unit 36 has one side electrically connected to the wireless signal line 41 through the integrated signal line 31A and the wireless DC power line 31B, and the other side has the DMB image transmission line 31C and the GPS / FM. The amplifier 31 is electrically connected to the amplifier 31 via the transmission line 31D.

The DMB video transmission line 31C transmits the DMB video signal amplified by the DMB amplifier 32 to the integrated signal line 31A, and the GPS / FM transmission line 31D is a GPS satellite amplified by the GPS / FM amplification unit 33. The signal or the FM broadcast signal is transmitted to the integrated signal line 31A. At this time, the DMB video signal passes through the high frequency capacitor 36A of the AC / DC separator 36 and is transmitted to the integrated signal line 31A, and the GPS satellite signal or the FM broadcast signal is also a high frequency capacitor of the AC / DC separator 36. Passed through 36A is transmitted to integrated signal line 31A. The integrated signal line 31A transmits the GPS satellite signal of the 1.5 GHz band or the FM signal of the tens to 110 MHz band and the DMB video signal of the 200 MHz band.

The wireless DC power line 31B supplies 3.3-3.5V DC power provided from the display terminal 70 to the amplifying unit 31 and the wireless receiving module 10 through the AC / DC separating unit 36. In this case, the DC power passes through the low pass filter 36B and is transmitted to the wireless power transmission line 31E, and the capacitor 36A cuts off the DC power so as not to flow into the integrated signal line 31A.

The camera module 20 includes a lens 21 and an image sensor 22.

The image sensor 22 generates an image image in response to light incident through the lens 21 installed at the rear of the housing 2, and transmits the image image to the image signal processor 34. The image signal processor 34 performs signal processing on the generated image image using a digital signal processor such as compression, noise reduction, and signal conversion. The rear image signal processed by the image signal processor 34 is transmitted through the camera image transmission line 34A.

The DC power supply line 34B for the camera supplies the DC power of 3.3 to 5V provided from the display terminal 70 to the image signal processor 34 and the camera module 20.

The wireless receiving module 10, the amplifier 31, and the signal separator 36 use a wireless DC power provided through the wireless DC power line 31B, and are independently of the camera module 20 and the image. The signal processing unit 34 uses a DC power supply for the camera provided through the DC power supply line 34B for the camera. This is to prevent interference of a high frequency signal between a plurality of modules. However, the ground wire 35 for grounding each module is common. This ground wire 35 is connected to the vehicle body ground wire 42 via a wireless DC power supply line 31B. The body ground wire 42 may be connected to a ground terminal provided in the trunk at the rear of the vehicle.

In the circuit board 30, one side of the ground line 35 is connected to the amplifier 31 and the other side is connected to the image signal processor 34, and the inductor 37 is connected therebetween. The inductor 37 is to block the high frequency signal introduced through the ground wire 35 and to prevent the DMB image signal or the GPS satellite signal output from each module from being mixed with the camera image information.

The connecting jack 43 of the wireless signal line 41 is connected to the signal splitter 60, and the connecting jack 45 of the camera video line 44 is connected to the image selection switch 63.

Referring to FIG. 4, the wireless signal line 41 includes an integrated signal line 41-1, an insulating member 41-2, and a wireless DC power line 41-3 arranged concentrically, and the wireless DC power line (41-3) The surface is covered with insulating material. The integrated signal line 41-1 is connected in series to the integrated signal line 31A of the circuit board 30, and the wireless DC power line 41-3 is connected to the wireless DC power line 31B of the circuit board 30. Are connected in series.

The camera video line 44 has an image line 44-1, an insulating member 44-2, and a camera power line 44-3 arranged in concentric circles, and the surface of the camera power line 44-3 is made of an insulating material. Is covered. The image line 44-1 is connected in series to the camera image transmission line 34A of the circuit board 30, and the camera power supply line 44-3 is serially connected to the camera DC power supply line 34B of the circuit board 30. Connected.

Hereinafter, the operation of the vehicle wiring apparatus having the rear monitoring camera having the above configuration will be described with reference to FIG. 5.

When the driver sets the convenience function while operating the display terminal 70, and the navigation function is turned on (Yes of 110), the GPS received through the wireless receiving module 10 of the receiver 1 The satellite signal is transmitted to the signal splitter 60 through the wireless signal line 41, and the GPS satellite signal separated from the signal splitter 60 is applied to the GPS input terminal G via the GPS signal line 41B. Accordingly, the display terminal 70 displays geographic information on the screen using the GPS satellite signal. In this case, when the driver turns on the DMB function (Yes of 110), the DMB broadcast signal received through the wireless receiving module 10 of the receiver 1 is transmitted to the signal splitter 60 through the wireless signal line 41. The DMB broadcast signal transmitted from the signal splitter 60 is applied to the DMB input terminal D via the DMB signal line 41A. Then, the display terminal 70 displays the DMB image on the screen according to the DMB broadcast signal (112).

When the driver turns on the black box function for recording a video while driving the vehicle (Yes of 114), the image selection switch 63 connects the recording video signal line 44B and the camera video line 44 at this time. Becomes The image recording apparatus 80 may store the rear image provided through the image line 44-1 on a storage medium or transmit the rear image to the display terminal 70 according to a driver's operation command to reproduce the recorded image through the screen ( 116). In this case, the video recording device 80 provides power required for the camera module 20 to operate through the camera power line 44-3 connected to the video recording signal line 44B.

In the case of reversing the vehicle (Yes of 118), the reverse power source 91 supplies power to the reverse lamp 90 so as to be turned on, and the reverse detecting unit 61 switches the image selection switch 63 to the terminal. The video signal line 44A is connected to the video line 44-1 of the camera video line 44, and the reverse power selection switch 62 is switched to supply reverse power through the camera power line 44-3. . Accordingly, the rear of the vehicle is photographed by the camera module 20 of the receiver 1 (120). Then, the photographed rear image is input to the image input terminal C through the camera image line 44 and the terminal image signal line 44A, and the display terminal 70 displays the photographed rear image on the screen (122). ).

1: receiver 2: housing
3: see-through window 4: support plate
5: magnet 6: protective cap
10: wireless receiving module 11: DMB antenna
12: GPS / FM antenna 20: camera module
21 lens 22 image sensor
30 circuit board 31 amplifier
32: DMB amplifier 33: GPS / FM amplifier
34: video signal processor 35: ground wire
40: electrical wiring 41: wireless signal line
44: camera video line 60: signal splitter
70: display terminal 80: video recording device

Claims (6)

A circuit board 30 electrically connected to a wireless receiving module 10 for processing wireless signals received by the plurality of antennas 11 and 12 and a camera module 20 for processing image information captured by a rear camera. A receiver 1 provided;
A display terminal 70 receiving and displaying the wireless signal and the captured image information, and supplying independent first and second DC powers to the plurality of modules 10 and 20 of the receiver 1;
A signal splitter 60 electrically connecting the receiver 1 and the display terminal 70 and separately outputting the separated signal to the display terminal 70 by separating the radio signal synthesized by the receiver 1. ;
A wireless signal line (41) connected between the receiver (1) and the signal splitter (60) to transmit the wireless signal and the first DC power source;
And a camera video line 44 connected between the receiver 1 and the display terminal 70 to transmit the captured image information and the second DC power.
The receiver 1 is externally installed in the vehicle body and installed in an electric apparatus using a first DC power provided to the wireless receiving module 10 and a second DC power provided to the camera module 20. Common grounding is performed using one ground line 35 connected in common, and a shielding film 7 installed to surround the camera module 20 in the housing 2 and the inductor 37 connected to the ground line 35 is used. To prevent mutual interference by high-frequency signals between electrical devices,
The circuit board 30 receives the antennas 11 and 12 and integrates the GPS satellite signals or the FM broadcast signals into DMB video signals having different signal bands, and transmits the integrated signal lines 31A and the wireless receiving module. A wireless DC power supply line 31B for providing the first DC power supply to 10 and electrically connected to the ground line 35;
The wireless signal line 41 has an insulating member between the integrated signal line 41-1 and the wireless DC power line 41-3 electrically connected to the integrated signal line 31A and the wireless DC signal line 31B, respectively. 41-2) is integrated through the housing 2 of the receiver and drawn out;
The circuit board 30 includes a camera image transmission line 34A for transmitting the captured image information, and a camera DC power line 34B for providing the second DC power to the camera module 20.
The camera image line 44 is an insulating member between the image line 44-1 and the camera power line 44-3 electrically connected to the camera image transmission line 34A and the camera DC power line 34B, respectively. 44-2) having a rear surveillance camera which is integrated with the wireless signal line (41) and drawn out of the housing (2) of the receiver.

delete The method of claim 1,
The circuit board 30 includes a DC blocking capacitor 36A for passing the broadcast signal and the GPS satellite signal received by the wireless receiving module 10 and cutting off the first DC power, and the first DC power supply. It has a rear-surveillance camera having a low-pass filter (36B) for passing through and supplying to the wireless receiving module (10) to separate the received radio signal and the first DC power source (36). Vehicle wiring harness.


delete delete The method of claim 1,
The camera video line 44 transmits the captured image information through the video line 44-1 and the second DC power through the camera power line 44-3.
The second DC power source is the reverse power source 91 provided to the reverse lamp 90,
A reverse power sensing unit 61 for detecting whether the reverse power is driven by the reverse power source 91 of the reverse lamp 90, and a reverse power source to the camera power line 44-3 under the control of the reverse sensing unit 61. A vehicle wiring apparatus having a rear view surveillance camera further comprising a reverse power source selection switch 62 for switching to supply 91.

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