Improved post-drawing long-distance data line

Abstract

The utility model discloses an improved post-drawing long-distance data line, which comprises a first connector, a second connector, a shielding line and a power line, the shielding line and the power line are arranged between the first connector and the second connector, and the first connector and the second connector are respectively connected with a rear-view camera and an automobile data recorder. The shielding wire comprises a metal shielding layer, a video signal wire, a reversing detection signal wire and a grounding wire are wrapped in the metal shielding layer, and the grounding wire is a bare metal wire. The video signal line is wrapped in the metal shielding layer, the grounding line is a bare metal line, the power line is independently arranged outside the shielding line, the USB 1.1 / 2.0 protocol is adapted to realize the non-attenuation transmission of the video data line with the long distance of more than 6 meters, and the video image signal quality of the rear-view camera is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire materials, in particular to an improved data line with a longer distance. Background Art

[0002] Visual reversing rearview cameras are currently popular among car drivers. Reversing rearview cameras play a great role in ensuring reversing safety, especially in crowded parking lots, places with poor lighting, and places with frequent personnel activities. The rearview camera is installed in the rearview mirror, the rear of the car, etc. It is generally powered by a battery, and transmits the image signal to the driving recorder and other equipment on the front of the car through a video cable. The video cable is an important part of the video system. The quality of production directly affects the technical indicators of the video channel. Poor quality video cables may cause signal reflection, severe signal attenuation, equipment asynchrony, and even signal interruption. In the video system, except for a small number of control signal lines, program signals, synchronization signals, keying signals and other signals are all transmitted by video cables. Therefore, problems with the video cable are one of the common sources of equipment and system failures.

[0003] Since the rear-view camera generally has a distance of more than 2 meters to the front of the car, especially for medium and large vehicles, this distance is even longer. Although there are many ways to transmit audio and video signals, such as S-terminal (or Y / C), VGA signal, DVI signal, HDMI signal, SDI signal, USB signal, etc., it is necessary to consider multiple factors such as device size and cost. Rear-view cameras usually use USB transmission, which is small in size and low in cost. According to the current USB2.0 standard, the longest transmission distance of USB devices is 5 meters, so USB cannot be used for long distances. The transmission distance of USB can also be solved. The transmission distance can be extended through a USB hub HUB. Each additional HUB can be extended by 5 meters, and a total of 5 HUBs can be added. The main function of the hub is to regenerate, shape and amplify the received signal to expand the transmission distance of the network, and at the same time concentrate all nodes on the node centered on it.

[0004] In addition, it is difficult to achieve high-quality signal transmission of video image signals using wireless transmission. When using a video data cable of more than 2 meters for signal transmission, the transmission distance is too long. The existing USB video data cable has poor transmission quality without a hub, which limits the transmission distance of the video image signal, thereby affecting the installation position of the rearview camera and the installation of the image acquisition and display device. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an improved extended-distance data line, which can realize non-attenuation transmission of video data lines over a long distance of more than 6 meters and realize high-quality video transmission at a low cost.

[0006] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0007] An improved extended distance data cable includes a first connector, a second connector, and a shielding wire and a power line between the first connector and the second connector, wherein the first connector and the second connector are respectively connected to a rearview camera and a driving recorder, and the shielding wire includes a metal shielding layer, wherein the metal shielding layer covers a video signal line, a reversing detection signal line and a grounding line, and the grounding line is a bare metal wire.

[0008] Furthermore, the video signal line, the ground line and the reversing detection signal line are respectively covered in a second insulating protective layer, and the metal shielding layer is arranged in a first insulating protective layer.

[0009] Furthermore, the video signal lines include DM signal lines and DP signal lines.

[0010] Optionally, the metal shielding layer is one of copper foil, aluminum foil, tin foil, and shielding mesh.

[0011] Optionally, the ground wire is a bare copper wire or a bare aluminum wire.

[0012] Furthermore, the power cord consists of a power cord core and a power cord insulation protective layer covering the power cord core.

[0013] Optionally, the first connector is one of a 2.5mm headphone jack, a 3.5mm headphone jack, a MINI-USB interface, a MICRO-USB interface, and a USB interface that are adapted to the USB 1.1 / 2.0 protocol.

[0014] Furthermore, the first connector is a 2.5mm headphone headphone head or a 3.5mm headphone headphone head, including a power signal layer, a DM signal layer, a DP signal layer, and a ground layer, and insulating protective layers are respectively arranged between the power signal layer, the DM signal layer, the DP signal layer, and the ground layer.

[0015] Furthermore, the second connector is a BMW 5-pin male terminal or a BMW 5-pin female terminal adapted to the USB 1.1 / 2.0 protocol, including a power signal pin, a DM signal pin, a DP signal pin, a ground pin, and a reversing detection signal pin.

[0016] By adopting the above technical scheme, the improved embodiment of the utility model lengthens the distance of the data line, the video signal line is covered by the metal shielding layer, the grounding line is a bare metal line, and the power line is independent of the shielding line. It adapts to the USB 1.1 / 2.0 protocol to achieve attenuation-free transmission of video data lines over long distances of more than 6 meters, greatly improving the video image signal quality of the rearview camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 This is the main structural diagram of the improved extended distance data line of the utility model;

[0019] Figure 2 for Figure 1 Middle AA section structure diagram;

[0020] Figure 3 This is a side view of the structure of the improved extended distance data line of the utility model;

[0021] In the figure, 10-first connector, 20-shielding wire, 30-power line, 40-second connector, 11-power signal layer, 12-DM signal layer, 13-DP signal layer, 14-ground layer, 15-insulation protection layer; 21-DM signal line, 22-DP signal line, 23-reversing detection signal line, 24-ground wire, 25-first insulation protection layer, 26-metal shielding layer, 27-second insulation protection layer; 31-power line core, 32-power line insulation protection layer; 41-power signal pin, 42-DM signal pin, 43-DP signal pin, 44-ground pin, 15-reversing detection signal pin. DETAILED DESCRIPTION

[0022] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] Example 1

[0024] like Figure 1 , 2As shown, an embodiment of the utility model provides an improved extended distance data cable, including a first connector 10, a second connector 40, and a shielding wire 20 and a power line 30 between the first connector 10 and the second connector 40, the first connector 10 and the second connector 40 are respectively connected to a rearview camera and a driving recorder, the shielding wire 20 includes a metal shielding layer 26, the metal shielding layer 26 encloses a video signal line, a reversing detection signal line 23 and a grounding wire 24, and the grounding wire 24 is a bare metal wire.

[0025] The video signal line, the ground line 24 and the reverse detection signal line 23 are respectively covered in the second insulating protective layer 27, and the metal shielding layer 26 is arranged in the first insulating protective layer 25. Specifically, the video signal line includes a DM signal line 21 and a DP signal line 22. DM-: Data Minus, data negative signal; DP+: USB Data Positive, data positive signal.

[0026] Optionally, the metal shielding layer 26 is one of copper foil, aluminum foil, tin foil, and shielding mesh.

[0027] Optionally, the ground wire 24 is a bare copper wire or a bare aluminum wire.

[0028] like Figure 2 As shown, the power cord 30 is composed of a power cord core 31 and a power cord insulation protection layer 32 covering the power cord core 31 .

[0029] Optionally, the first connector 10 is one of a 2.5mm headphone jack, a 3.5mm headphone jack, a MINI-USB interface, a MICRO-USB interface, and a USB interface adapted to the USB 1.1 / 2.0 protocol.

[0030] like Figure 1 , 2 As shown, the first connector 10 is a 2.5mm headphone headphone head or a 3.5mm headphone headphone head, including a power signal layer 11, a DM signal layer 12, a DP signal layer 13, and a ground layer 14, and an insulating protective layer 15 is respectively provided between the power signal layer 11, the DM signal layer 12, the DP signal layer 13, and the ground layer 14. The power signal layer 11, the DM signal layer 12, the DP signal layer 13, and the ground layer 14 are connected to the power line core 31, the DM signal line 21, the DP signal line 22, and the ground line 24 in sequence.

[0031] like Figure 3As shown, the second connector 40 is a BMW 5-pin male terminal or a BMW 5-pin female terminal adapted to the USB 1.1 / 2.0 protocol, and includes a power signal pin 41, a DM signal pin 42, a DP signal pin 43, a ground pin 44, and a reverse detection signal pin 45. The power signal pin 41, the DM signal pin 42, the DP signal pin 43, the ground pin 44, and the reverse detection signal pin 45 are respectively connected to the power line core 31, the DM signal line 21, the DP signal line 22, the ground line 24, and the reverse detection signal line 23.

[0032] The improved embodiment of the utility model extends the distance of the data line, covers the video signal line in the metal shielding layer, the grounding line is a bare metal line, and the power line is independent of the shielding line. It adapts to the USB 1.1 / 2.0 protocol to achieve attenuation-free transmission of video data lines over long distances of more than 6 meters, greatly improving the video image signal quality of the rearview camera.

[0033] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. An improved extended distance data line, characterized in that: It includes a first connector, a second connector, and a shielding wire and a power wire between the first connector and the second connector. The first connector and the second connector are respectively connected to a rearview camera and a driving recorder. The shielding wire includes a metal shielding layer. The metal shielding layer covers a video signal line, a reversing detection signal line and a grounding wire. The grounding wire is a bare metal wire. The video signal line and the reversing detection signal line are respectively covered in a second insulating protective layer, and the metal shielding layer is arranged in a first insulating protective layer.

2. The improved extended distance data line according to claim 1, characterized in that: The video signal lines include a DM signal line and a DP signal line.

3. The improved extended distance data line according to claim 1, characterized in that: The metal shielding layer is one of copper foil, aluminum foil, tin foil and shielding mesh.

4. The improved extended distance data line according to claim 1, characterized in that: The grounding wire is a bare copper wire or a bare aluminum wire.

5. The improved extended distance data line according to claim 1, characterized in that: The power cord consists of a power cord core and a power cord insulation protection layer covering the power cord core.

6. The improved extended distance data line according to claim 1, characterized in that: The first connector is one of a 2.5mm headphone jack, a 3.5mm headphone jack, a MINI-USB interface, a MICRO-USB interface, and a USB interface that is adapted to the USB 1.1 / 2.0 protocol.

7. The improved extended distance data line according to claim 6, characterized in that: The first connector is a 2.5mm headphone headphone head or a 3.5mm headphone headphone head, including a power signal layer, a DM signal layer, a DP signal layer, and a ground layer. Insulating protective layers are respectively arranged between the power signal layer, the DM signal layer, the DP signal layer, and the ground layer.

8. The improved extended distance data line according to claim 1, characterized in that: The second connector is a BMW 5-pin male terminal or a BMW 5-pin female terminal, including a power signal pin, a DM signal pin, a DP signal pin, a ground pin, and a reversing detection signal pin.

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