阅读说明：本技术 一种适用于全海深环境的hdsdi高清视频传输密封缆 (HDSDI high definition video transmission sealing cable suitable for full sea deep environment ) 是由 王健 唐元贵 李一平 李吉旭 陈聪 阎述学 陆洋 于 2018-07-30 设计创作，主要内容包括：本发明涉及全海深水下摄像技术领域,特别涉及一种适用于全海深环境的HDSDI高清视频传输密封缆。包括水密连接头、密封管及同轴线,其中密封管的两端分别连接一水密连接头,同轴线容置于密封管中、且两端分别与水密连接头连接,密封管内充填有压力补偿油。本发明可在全海深环境下使用的充油水密缆,可实现高清图像无延迟实时传输,高清图像无损失不失真。(The invention relates to the technical field of camera shooting under full-sea deep water, in particular to an HDSDI high-definition video transmission sealing cable suitable for a full-sea deep environment. The coaxial cable comprises a watertight connector, a sealing pipe and a coaxial cable, wherein two ends of the sealing pipe are respectively connected with the watertight connector, the coaxial cable is accommodated in the sealing pipe, two ends of the coaxial cable are respectively connected with the watertight connector, and pressure compensation oil is filled in the sealing pipe. The oil-filled watertight cable can be used in the full-sea deep environment, can realize the real-time transmission of high-definition images without delay, and has no loss and distortion of the high-definition images.)

1. The HDSDI high-definition video transmission sealing cable suitable for the full-sea deep environment is characterized by comprising a watertight connector (1), a sealing pipe (3) and a coaxial line (6), wherein the two ends of the sealing pipe (3) are respectively connected with the watertight connector (1), the coaxial line (6) is accommodated in the sealing pipe (3), the two ends of the coaxial line are respectively connected with the watertight connector (1), and pressure compensation oil (7) is filled in the sealing pipe (3).

2. The HDSDI high definition video transmission sealing cable suitable for the full sea deep environment of claim 1, wherein two ends of the coaxial line (6) are respectively connected with two watertight connectors (1) through connector assemblies.

3. The HDSDI high definition video transmission sealing cable suitable for the full sea deep environment of claim 2, wherein the joint assembly comprises a coaxial male joint (4) and a coaxial female joint (5), wherein the coaxial female joint (5) is connected with the coaxial line (6), the coaxial male joint (4) is connected with the connecting line of the watertight connector (1), and the coaxial male joint (4) and the coaxial female joint (5) are in threaded connection.

4. The HDSDI high-definition video transmission sealing cable suitable for the full-sea deep environment is characterized in that the watertight connector (1) is spliced with the sealing pipe (3) and is fixedly connected with the sealing pipe (3) through a connecting piece arranged on the outer side of the end portion of the sealing pipe (3).

5. The HDSDI high definition video transmission sealing cable suitable for full sea deep environment of claim 4, characterized in that, the connecting piece is sealing buckle (2), sealing buckle (2) cover locate on sealing tube (3), and both ends are the structure that opens and shuts, sealing buckle (2) hold tightly sealing tube (3) through both ends closure to realize the fixed connection of watertight connector (1) with sealing tube (3).

Technical Field

The invention relates to the technical field of camera shooting under full-sea deep water, in particular to an HDSDI high-definition video transmission sealing cable suitable for a full-sea deep environment.

Background

With the continuous development of underwater weapons, underwater scientific research and underwater operation tools, the requirement of a large-depth, especially full-sea-depth and high-definition camera system is increasingly urgent. The HDSDI (High Definition Serial Digital Interface) is a real-time non-compression High-Definition wide-television camera Interface. The method has the advantages of no delay and real-time transmission of the high-definition images, no loss and distortion of the high-definition images and the like. In addition, even if the HDSDI interface extends, the problem of network extension cannot be caused, the central system is completely isolated from the front-end system, network intrusion cannot be caused through the HDSDI interface, and the safety is higher than that of a network system. The HDSDI interface is based on SMPTE (society of motion Picture and television Engineers) serial link standard, adopts 75 ohm coaxial cable to transmit uncompressed high definition digital video signals, and ordinary watertight cable can not satisfy the impedance matching requirement of the 75 ohm coaxial cable. The underwater images can truly reflect underwater scenes, such as life of organisms, submarine geological environment and the like. With the continuous development of the full-sea-depth detection technology, the demands of the full-sea-depth underwater high-definition camera shooting and transmission technology are increasingly urgent.

Disclosure of Invention

Aiming at the problems, the invention aims to provide an HDSDI high-definition video transmission sealing cable suitable for the full-sea deep environment so as to realize the transmission of HDSDI high-definition video signals in the full-sea deep ten-thousand-meter pressure environment, and the maximum working depth is 11000 meters.

The purpose of the invention is realized by the following technical scheme:

the HDSDI high-definition video transmission sealing cable suitable for the full-sea deep environment comprises watertight connectors, a sealing pipe and a coaxial line, wherein two ends of the sealing pipe are respectively connected with the watertight connectors, the coaxial line is accommodated in the sealing pipe, two ends of the coaxial line are respectively connected with the watertight connectors, and pressure compensation oil is filled in the sealing pipe.

The two ends of the coaxial line are respectively connected with the two watertight connectors through connector components.

The connector assembly comprises a coaxial male connector and a coaxial female connector, wherein the coaxial female connector is connected with the coaxial line, the coaxial male connector is connected with the connecting line of the watertight connector, and the coaxial male connector is in threaded connection with the coaxial female connector.

The watertight connector with the sealed tube is pegged graft, and through set up in the connecting piece fixed connection in the sealed tube tip outside.

The connecting piece is sealed buckle, sealed buckle cover is located on the sealed tube, and both ends are the structure that opens and shuts, sealed buckle holds tightly through both ends closure the sealed tube, thereby realizes the watertight connector with the fixed connection of sealed tube.

The invention has the advantages and positive effects that:

HDSDI high definition video transmission: at present, a common watertight cable cannot meet the 75-ohm impedance matching requirement of the HDSDI signal, a 75-ohm coaxial cable and a joint cannot meet the watertight use requirement under the full-sea deep pressure, and the HDSDI signal transmission device can realize normal transmission of the HDSDI signal under the full-sea deep condition.

The invention has reliable sealing, adopts the design of oil-filled compensation sealing to compensate the pressure of the whole-sea deep sea water, has consistent internal and external pressure of the sealing pipe, and has simple and reliable sealing.

The invention has small diameter: the direct pressure-bearing of transmission cable inner part avoids heavy withstand voltage design, and transmission cable diameter is 15 millimeters only.

The transmission cable of the invention has adjustable length: the length of the cable can be adjusted on site according to the requirement of signal transmission distance.

The preparation process of the invention is simple: the transmission cable does not need large-scale processing equipment, and has simple process and low requirement on tools.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

In the figure: 1 is the watertight connector, 2 is sealed buckle, 3 is the sealed tube, 4 is coaxial male joint, 5 is coaxial female joint, 6 is the coaxial line, and 7 is pressure compensation oil.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the HDSDI high definition video transmission sealing cable suitable for the full-sea deep environment according to the present invention comprises a watertight connector 1, a sealing tube 3 and a coaxial cable 6, wherein two ends of the sealing tube 3 are respectively connected to the watertight connector 1, the coaxial cable 6 is accommodated in the sealing tube 3, and two ends of the coaxial cable are respectively connected to the watertight connector 1, and the sealing tube 3 is filled with pressure compensation oil 7.

Further, two ends of the coaxial line 6 are respectively connected with the two watertight connectors 1 through connector assemblies.

In the embodiment of the invention, the connector assembly comprises a coaxial male connector 4 and a coaxial female connector 5, wherein the coaxial female connector 5 is connected with a coaxial line 6, the coaxial male connector 4 is connected with the connecting line of the watertight connector 1, and the coaxial male connector 4 is in threaded connection with the coaxial female connector 5.

Furthermore, the watertight connector 1 is inserted into the sealing tube 3 and is fixedly connected with the sealing tube 3 through a connecting piece arranged on the outer side of the end part of the sealing tube.

In the embodiment of the invention, the connecting piece is the sealing buckle 2, the sealing buckle 2 is sleeved on the sealing pipe 3, the two ends of the sealing buckle are of an opening and closing structure, and the sealing buckle 2 tightly holds the sealing pipe 3 through closing the two ends of the sealing buckle, so that the watertight connector 1 is fixedly connected with the sealing pipe 3.

The diameter of full sea depth HDSDI high definition video transmission sealing cable is 15 millimeters, and length can be according to the on-the-spot preparation of user demand, and both ends can bear full sea depth sea water pressure for watertight connector 1. The sealing tube 3 is connected with the watertight connector 1 in a sealing way through the sealing buckle 2. A coaxial male connector 4 and a coaxial female connector 5 are adopted in the sealing pipe to connect a coaxial line 6 with a connecting line of the watertight connector 1. After the connection is finished, pressure compensation oil 7 is filled in the sealing pipe 3, so that the internal and external pressures of the transmission sealing cable are kept consistent when the deep sea works.

The working principle of the invention is as follows:

in the deep sea environment of 11000 m, the pressure reaches about 114MPa, and ordinary HDSDI transmission line can not satisfy withstand voltage watertight requirement. The invention adopts an oil-filled compensation sealing mode to directly bear the pressure of the transmission cable part, thereby avoiding a heavy pressure-resistant design and reducing the diameter of the transmission sealing cable.

The common pressure-resistant watertight cable cannot meet the HDSDI impedance matching requirement, the transmission cable meets the HDSDI impedance matching requirement in a sealing coaxial cable mode, the process is simple, and special tools can be used for on-site manufacturing.

In conclusion, the oil-filled watertight cable can be used in a full-sea deep environment, high-definition images can be transmitted in real time without delay, and the high-definition images are lossless and undistorted. The HDSDI high-definition video transmission sealing cable suitable for the full-sea deep environment is a pressure-resistant watertight transmission sealing cable capable of transmitting real-time uncompressed high-definition broadcast HDSDI signals, can normally work under full-sea deep pressure, and has wide deep-sea application prospects.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.