High-speed camera remote control system based on underwater explosion impact test

Abstract

The utility model discloses a high-speed camera remote control system based on an underwater explosion impact test. The system comprises an underwater high-speed camera, underwater lighting equipment, a watertight composite cable, an underwater high-speed camera front-end control system, a network switch and a high-speed camera terminal control acquisition system. The high-speed camera terminal control acquisition system is located on a shore-based observation platform, and the underwater high-speed camera front-end control system is located on an underwater test platform; the high-speed camera terminal control acquisition system is in communication connection with the underwater high-speed camera front-end control system through the network switch; and outside the pressure-resistant cabin, a watertight composite cable penetrates through a shell to connect the underwater high-speed camera and the underwater lighting equipment with equipment of a front-end control system of the underwater high-speed camera. By arranging an underwater high-speed camera front-end control system, automatic data acquisition, local storage and remote transmission are supported; and the stability and reliability of data acquisition of the high-speed camera are ensured.

Description

Technical Field

[0001] The utility model belongs to the field of high-speed photography, and particularly relates to a high-speed photography remote control system for underwater explosion impact testing in remote waters and deep waters. Background Art

[0002] In the military and engineering fields, underwater explosion shock testing is a key link in evaluating the shock resistance of equipment. With the continuous development of modern science and technology, underwater equipment is increasingly used in various extreme environments, so the requirements for shock resistance are also getting higher and higher. Traditional testing methods are often limited by measuring equipment and technical means, and it is difficult to accurately capture the shock waves, debris, bubble movement and dynamic response of objects underwater generated by underwater explosions. This leads to great uncertainty in equipment performance evaluation.

[0003] In order to solve the above problems, high-speed camera technology has been gradually applied to underwater explosion impact testing. High-speed cameras have the ability to shoot continuously at high speed, with high resolution and accurate dynamic capture. They can record in real time the propagation of shock waves during underwater explosions, the formation and movement of debris and steam drums, and the dynamic response of objects underwater. These data are not only of great significance for evaluating the impact resistance of equipment, but also provide a valuable basis for optimizing equipment design and improving safety performance.

[0004] The explosion impact test of a certain device was carried out offshore. The device was installed on an underwater test platform. The test equipment was placed in the pressure-resistant chamber of the underwater test platform and sank underwater with the underwater test platform during the test. At the beginning of the test, the high-speed camera recorded the shock waves, bubbles, fragments and changes in the surrounding environment generated by the explosion at a very high frame rate. At the same time, many sensors were arranged around the test area to monitor the pressure, temperature, vibration and other physical parameters generated by the explosion in real time. These sensor data, combined with the image data of the high-speed camera, provide researchers with a comprehensive and in-depth basis for analysis.

[0005] In view of the particularity of the explosion impact test, in order to ensure the smooth progress of the test, the underwater test platform adopts an underwater unmanned platform solution, and the test equipment is installed on the underwater test platform. The underwater test platform transmits power and information to the shore through an optoelectronic composite cable, realizing cable control and unmanned operation of various systems on the platform on shore ( Figure 1 ). The data processing system is located on the observation platform on the shore, and the two exchange information through the optoelectronic composite cable. The underwater high-speed camera system is provided with an Ethernet communication port by the underwater dynamic platform, and the communication is 2M adaptive.

[0006] However, the complexity of the underwater environment and remote control at long distances and low bandwidth have brought challenges to the application of high-speed cameras. For example, the remote control of the power on and off of high-speed cameras in unattended situations, the power on and off of underwater lighting equipment, and the storage and transmission of large amounts of data collected by high-speed cameras under low bandwidth during network remote control need to be solved. Therefore, it is of great significance to study and develop a high-speed camera remote control system and its supporting technologies suitable for underwater explosion impact testing, ensure the stability and reliability of data collected by high-speed cameras, improve test accuracy, and ensure equipment performance. Utility Model Content

[0007] The technical problems to be solved by the utility model are remote control of the power on and off of high-speed cameras and underwater lighting equipment in unattended situations, and the storage and transmission of large amounts of data collected by high-speed cameras under low bandwidth during network remote control. In order to solve the above problems, a high-speed camera remote control system based on underwater explosion impact testing is provided.

[0008] The purpose of the utility model is achieved in the following ways:

[0009] A high-speed camera remote control system based on underwater explosion impact test, the system comprises an underwater high-speed camera, underwater lighting equipment, a watertight composite cable, an underwater high-speed camera front-end control system, a network switch and a high-speed camera terminal control and acquisition system; the high-speed camera terminal control and acquisition system is located on a shore-based observation platform, and the underwater high-speed camera front-end control system, the underwater high-speed camera and the underwater lighting equipment are located on an underwater test platform; wherein the underwater high-speed camera front-end control system is located in a pressure-resistant cabin of the underwater test platform; the high-speed camera terminal control and acquisition system is connected to the underwater high-speed camera front-end control system through a network switch; outside the pressure-resistant cabin, the watertight composite cable passes through the shell to connect the underwater high-speed camera and the underwater lighting equipment with the equipment of the underwater high-speed camera front-end control system.

[0010] The network switch includes a first network switch located on a shore-based observation platform, a second network switch located in a pressure-resistant cabin, and a third network switch in a front-end control system of an underwater high-speed camera; the first network switch is communicatively connected to the second network switch, and the second network switch is communicatively connected to the third network switch.

[0011] The underwater high-speed camera front-end control system includes a high-speed camera control unit, a data acquisition device, a remote power control unit, a water leakage monitoring unit, a third network switch, and a UPS power supply; one end of the third network switch is connected to the second network switch in the pressure-resistant cabin through communication, and the other end of the second network switch is connected to the first network switch on the shore-based observation platform through optical fiber signal transmission, the first network switch is connected to the underwater high-speed camera terminal control and acquisition system, and the other end of the third network switch is connected to the data acquisition device; the other end of the data acquisition device is connected to the high-speed camera control unit through Ethernet communication; the high-speed camera control unit is connected to the underwater high-speed camera through a data link; the water leakage monitoring unit is connected to the high-speed camera control unit; the UPS power supply supplies power to the third network switch and the power remote control unit, and the power remote control unit supplies power to the underwater high-speed camera and the underwater lighting respectively; the power remote control unit supplies power to the water leakage monitoring unit and the data acquisition device respectively through the PDU power supply.

[0012] The power remote control unit adopts an industrial-grade remote power controller; the remote power controller outputs three AV220V power supplies, one for underwater lighting, one for the PDU power supply of the network cabinet, and one for the underwater high-speed camera.

[0013] The high-speed camera control unit includes a relay board, a 24V power supply, a 48V power supply and a gigabit network switch; the gigabit network switch converts the data of the underwater high-speed camera into a single network port output and connects the data acquisition equipment through the network; the 24V power supply is used to power the water leakage monitoring unit, and the 48V power supply is used to provide power for the underwater high-speed camera; the relay board is connected to the 24V power supply and the 48V power supply respectively, and the relay converts the 220V voltage into the corresponding 24V and 48V voltages.

[0014] The water leakage monitoring unit comprises a positioning water leakage sensing line and a positioning leakage detection controller; the positioning water leakage sensing line and the positioning leakage detection controller are arranged in a watertight pressure-bearing shell of an underwater high-speed camera; the positioning leakage detection controller is communicatively connected with the positioning water leakage sensing line.

[0015] Beneficial effects of the utility model: the utility model can effectively solve the problem of the host supporting "unattended and remote control" by setting up a front-end control system for an underwater high-speed camera; it has functions such as "automatic start-up at power-on and automatic shutdown at power-off", supports automatic data collection, local storage, and remote transmission; ensures the stability and reliability of data collected by the high-speed camera, improves test accuracy, and guarantees equipment performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the underwater test platform connection.

[0017] Figure 2 Schematic diagram of the structure of the high-speed camera remote control system during underwater explosion impact test.

[0018] Figure 3 This is a schematic diagram of the structure of a high-speed camera control unit.

[0019] Figure 4 This is a schematic diagram of the structure of the power remote control unit.

[0020] Figure 5 Schematic diagram of the power supply structure of the high-speed camera remote control system during underwater explosion impact testing.

[0021] Figure 6 Schematic diagram of the remote control structure of an underwater high-speed camera. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same technical meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0024] like Figure 2 As shown, a high-speed camera remote control system based on underwater explosion impact test, the system includes an underwater high-speed camera, underwater lighting equipment, a watertight composite cable, an underwater high-speed camera front-end control system, a network switch and a high-speed camera terminal control and acquisition system; the high-speed camera terminal control and acquisition system is located on a shore-based observation platform, and the underwater high-speed camera front-end control system, the underwater high-speed camera and the underwater lighting equipment are located on an underwater test platform; wherein the underwater high-speed camera front-end control system is located in a pressure-resistant cabin of the underwater test platform; the high-speed camera terminal control and acquisition system is connected to the underwater high-speed camera front-end control system through a network switch; the underwater high-speed camera terminal control and acquisition system collects data into the network switch, and then transmits the data to the underwater high-speed camera front-end control system in the pressure-resistant cabin of the underwater test platform through a remote network, and outside the pressure-resistant cabin, the watertight composite cable penetrates the shell to connect the underwater high-speed camera and the underwater lighting equipment with the equipment of the underwater high-speed camera front-end control system.

[0025] The network switch includes a first network switch located on a shore-based observation platform, a second network switch located in a pressure-resistant cabin, and a third network switch in a front-end control system of an underwater high-speed camera; the first network switch is communicatively connected to the second network switch, and the second network switch is communicatively connected to the third network switch.

[0026] The underwater high-speed camera front-end control system includes a high-speed camera control unit, a data acquisition device, a remote power control unit, a water leakage monitoring unit, a third network switch, and a UPS power supply; one end of the third network switch is connected to the second network switch in the pressure-resistant cabin through communication, and the other end of the second network switch is connected to the first network switch on the shore-based observation platform through optical fiber signal transmission, the first network switch is connected to the underwater high-speed camera terminal control and acquisition system, and the other end of the third network switch is connected to the data acquisition device; the other end of the data acquisition device is connected to the high-speed camera control unit through Ethernet communication; the high-speed camera control unit is connected to the underwater high-speed camera through a data link; the water leakage monitoring unit is connected to the high-speed camera control unit; the UPS power supply supplies power to the third network switch and the power remote control unit, and the power remote control unit supplies power to the underwater high-speed camera and the underwater lighting respectively; the power remote control unit supplies power to the water leakage monitoring unit and the data acquisition device respectively through the PDU power supply.

[0027] The power remote control unit adopts an industrial-grade remote power controller; the remote power controller outputs 3 AV220V power supplies, one for underwater lighting, one for the PDU power supply of the network cabinet, and one for the underwater high-speed camera. During the test, the high-speed camera terminal control and acquisition system can realize the automatic startup, power supply, self-check, normal operation of data acquisition equipment, underwater high-speed cameras and other equipment through network control of the remote power control unit, and the automatic shutdown, power failure, and normal shutdown functions when the power is cut off.

[0028] like Figure 4 As shown in the figure, the control switch of the remote power controller is connected to the user operation end using the standard TCP / IP protocol. The user end can modify the remote control switch online on-site according to the on-site network IP allocation. The user operation end uses computer software to control the remote end and complete the on-off of each channel of the remote control switch. At the same time, it can display the networking status of the operation end and the control end, and the status of the remote controller needs to be sent to the user operation end in real time.

[0029] like Figure 3As shown, the high-speed camera control unit includes a relay board, a 24V power supply, a 48V power supply and a gigabit network switch; the gigabit network switch converts the data of the underwater high-speed camera into a single network port output, and connects the data acquisition device through the network; the 24V power supply is used to power the water leakage monitoring unit, and the 48V power supply is used to provide power for the underwater high-speed camera; the relay board is connected to the 24V power supply and the 48V power supply respectively, and the relay converts the 220V voltage into the corresponding 24V and 48V voltages.

[0030] The water leakage detection system used in the water leakage monitoring unit is composed of a positioning water leakage induction line and a positioning leakage detection controller. The positioning leakage detection controller is connected to the positioning water leakage induction line for communication. The positioning water leakage induction line detects whether there is liquid immersion. When liquid contacts the induction line, the inner core wires of the two induction wires are connected when they encounter the liquid, forming a loop resistance, thereby causing a change in current. According to the proportional relationship between the resistance and the conductor length, the positioning leakage detection controller quickly calculates and issues an alarm signal to give the specific immersion position. The water leakage induction line and the positioning leakage detection controller are arranged in the watertight pressure-bearing shell of the high-speed camera. The monitoring signal is connected to the high-speed camera control unit through the underwater high-speed camera data link, and is transmitted to the water leakage monitoring unit by the gigabit network switch in the high-speed camera control unit.

[0031] The water leakage monitoring unit provides the water leakage monitoring output of the underwater high-speed camera, and provides a water leakage alarm switch and a water leakage status indicator light. The indicator light is on the front panel of the water leakage monitoring unit. During use, if the underwater high-speed camera leaks, the corresponding indicator light on the front of the water leakage monitoring unit will light up, and send a camera power off signal to the high-speed camera control unit, thereby immediately shutting down the camera power and effectively protecting the camera.

[0032] During the underwater explosion impact test, the communication link mode of the remote control high-speed camera system is that the network switch on the shore-based observation platform transmits signals with the network switch in the pressure-resistant shell of the underwater test platform through optical fiber. The software of the remote control terminal on the shore-based observation platform of the underwater high-speed camera system transmits control and data signals with the front-end data acquisition system through TCP / UPD and other protocols. The uplink and downlink speeds of the network optical fiber switch are both gigabit, and the number of electrical interfaces of a single unit meets the communication port and remote communication port of the test data acquisition system.

[0033] During the underwater explosion impact test, the high-speed camera remote control system is powered by a remote control method. The underwater test platform uniformly supplies power to the underwater high-speed system and provides an Ethernet communication RJ45 interface. To avoid accidental power outages during launch, the equipment uses an online UPS power supply; 3 AV220V power supplies are output through the remote power control unit, with a power of 2KW each. 1 for underwater lighting power supply, 1 for the PDU power supply of the network cabinet, and 1 for the underwater high-speed camera. Computer software is used to operate remote control and complete the on and off of each channel of the remote control switch unit. Figure 5 shown.

[0034] The working principle of the utility model is as follows: the underwater high-speed camera is used to complete the high-speed camera data processing of the underwater target. The image captured by the high-speed camera is transmitted to the data acquisition device through the high-speed camera control unit via the Gigabit Ethernet communication cable. The acquisition device is installed with the high-speed camera control software. The remote control terminal controls the data acquisition device through the network, and runs the high-speed camera control software on the data acquisition device to preview, playback and download the video files. Figure 6 shown.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that, for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, and these should also be regarded as the protection scope of the present invention.

Claims

1. A high-speed camera remote control system based on underwater explosion impact test, characterized in that: The system includes an underwater high-speed camera, underwater lighting equipment, a watertight composite cable, an underwater high-speed camera front-end control system, a network switch and a high-speed camera terminal control and acquisition system; the high-speed camera terminal control and acquisition system is located on a shore-based observation platform, and the underwater high-speed camera front-end control system, underwater high-speed camera and underwater lighting equipment are located on an underwater test platform; The underwater high-speed camera front-end control system is located in the pressure-resistant cabin of the underwater test platform; the high-speed camera terminal control and acquisition system is connected to the underwater high-speed camera front-end control system through a network switch; outside the pressure-resistant cabin, a watertight composite cable passes through the shell to connect the underwater high-speed camera and underwater lighting equipment with the equipment of the underwater high-speed camera front-end control system.

2. The high-speed camera remote control system based on underwater explosion impact test according to claim 1 is characterized in that: The network switch includes a first network switch located on a shore-based observation platform, a second network switch located in a pressure-resistant cabin, and a third network switch in a front-end control system of an underwater high-speed camera; the first network switch is communicatively connected to the second network switch, and the second network switch is communicatively connected to the third network switch.

3. The high-speed camera remote control system based on underwater explosion impact test according to claim 1 is characterized in that: The underwater high-speed camera front-end control system includes a high-speed camera control unit, a data acquisition device, a remote power control unit, a water leakage monitoring unit, a third network switch, and a UPS power supply; one end of the third network switch is connected to the second network switch in the pressure-resistant cabin through communication, and the other end of the second network switch is connected to the first network switch on the shore-based observation platform through optical fiber signal transmission, the first network switch is connected to the underwater high-speed camera terminal control and acquisition system, and the other end of the third network switch is connected to the data acquisition device; the other end of the data acquisition device is connected to the high-speed camera control unit through Ethernet communication; the high-speed camera control unit is connected to the underwater high-speed camera through a data link; the water leakage monitoring unit is connected to the high-speed camera control unit; the UPS power supply supplies power to the third network switch and the power remote control unit, and the power remote control unit supplies power to the underwater high-speed camera and the underwater lighting respectively; The power remote control unit supplies power to the water leakage monitoring unit and the data acquisition device respectively through the PDU power supply.

4. The high-speed camera remote control system based on underwater explosion impact test according to claim 3 is characterized in that: The power remote control unit adopts an industrial-grade remote power controller; the remote power controller outputs three AV220V power supplies, one for underwater lighting, one for the PDU power supply of the network cabinet, and one for the underwater high-speed camera.

5. The high-speed camera remote control system based on underwater explosion impact test according to claim 3 is characterized in that: The high-speed camera control unit includes a relay board, a 24V power supply, a 48V power supply and a gigabit network switch; the gigabit network switch converts the data of the underwater high-speed camera into a single network port output and connects the data acquisition equipment through the network; the 24V power supply is used to power the water leakage monitoring unit, and the 48V power supply is used to provide power for the underwater high-speed camera; the relay board is connected to the 24V power supply and the 48V power supply respectively, and the relay converts the 220V voltage into the corresponding 24V and 48V voltages.

6. The high-speed camera remote control system based on underwater explosion impact test according to claim 3 is characterized in that: The water leakage monitoring unit comprises a positioning water leakage sensing line and a positioning leakage detection controller; the positioning water leakage sensing line and the positioning leakage detection controller are arranged in a watertight pressure-bearing shell of an underwater high-speed camera; the positioning leakage detection controller is communicatively connected with the positioning water leakage sensing line.

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