JPH0924895A - Attitude stabilizing method for undersea equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an undersea equipment attitude stabilizing method that can execute the attitude operation of undersea equipment during stop without using a large number of vertical thrusters so as to downsize the whole system. SOLUTION: At least one power source is provided in undersea equipment 1, and fluid flow generated by the power source is jetted from a plurality of nozzles 3, provided at the undersea equipment 1, to operate the attitude of the equipment 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a posture stabilizing device for underwater equipment such as an unmanned submersible used for seabed investigation.

[0002]

2. Description of the Related Art In an undersea device in which electric power is transmitted by a cable, a plurality of vertical thrusters 11 are installed in the undersea device 1 as shown in FIG. The posture operation of the device 1 is performed. On the other hand, in battery-powered undersea equipment for wide-area research,
As shown in FIG. 3, in order to reduce power consumption, an elevator snake 12 similar to a horizontal stabilizer of the aircraft is provided, and the posture operation of the undersea device 1 is performed by using the elevator snake 12.

[0003]

However, according to the attitude operating method for an undersea device using a lifting snake as shown in FIG. 3, the attitude can be operated during traveling, but the device for observing at a fixed point can be used. There is a problem that the posture cannot be manipulated when stopping. It is said that installing multiple vertical thrusters as described above in an undersea device to stabilize the posture of the device while it is stopped leads to an increase in the size of the undersea device body → an increase in fluid resistance → an increase in power consumption. There's a problem.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems and enables the operation of the posture of a subsea device while it is at rest, without using a large number of vertical thrusters, thus enabling the system to be downsized. A method for stabilizing the posture of a device, characterized in that at least one power source is provided in the undersea device, and the flow of the fluid generated by the power source is jetted from a plurality of jet holes provided in the subsea device. To manipulate the posture of

[0005]

As described above, in the present invention, a power source such as a high-pressure gas tank or a submersible pump is installed in the subsea equipment, and these generate plural gas or water streams in the subsea equipment. The posture of the undersea equipment is operated by ejecting from the ocean, and the posture can be operated even when the undersea equipment is stopped such as observation at a fixed point, and the whole system can be downsized.

[0006] Further, even a battery-operated undersea device may be equipped with one vertical thruster in order to ascend from the bottom of the seabed. In such a case, it is also possible to use the thruster as a power source and operate the position of the undersea equipment by using the flow of water generated by the thruster instead of the high-pressure gas tank or the submersible pump.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view of an undersea device according to the present invention.
FIG. 1A is a top view showing the inside, and FIG. 1B is a side view showing the inside. As shown in the drawing, a high-pressure gas tank or a submersible pump 2 for posture operation is installed in the undersea device 1, and a gas or water flow generated by these is provided in the undersea device 1 through a pipe 4. The posture of the undersea device 1 is manipulated by ejecting from the plurality of ejection holes 3. At this time, which of the plurality of ejection holes 3 is to be ejected is determined by controlling the valve device 5 based on information from a sensor such as an inclinometer provided in the undersea device 1.

Further, one vertical thruster 6 is installed in the subsea equipment 1 for floating from the state of landing on the seabed. As described above, instead of the high pressure gas tank or the submersible pump 2, the above-mentioned vertical thruster 6 is installed. It is also possible to guide the flow of water generated by the vertical thruster 6 to the ejection holes 3 and operate the posture of the undersea device 1.

Forward and backward movement of the undersea device 1 is performed by a forward and backward thruster 8
Done by The elevator snake 7 is effective during such forward and backward movements, and the posture is operated by it. However, since the ascending / descending snake 7 does not work during fixed point observation or the like, it is efficient to perform the posture operation using the fluid flow of the high pressure gas tank, the submersible pump or the vertical thruster.

[0010]

As described above, according to the attitude stabilizing method for an undersea device according to the present invention, the operation of the undersea device during a stop can be efficiently performed without using a large number of vertical thrusters. It is possible to reduce the overall size.

[Brief description of drawings]

1 is an explanatory view of an undersea device according to the present invention, and FIG.
1A is a top view showing the inside, and FIG. 1B is a side view showing the inside.

FIG. 2 is an explanatory diagram of an example of a posture operation of a conventional undersea device.

FIG. 3 is an explanatory diagram of another example of a posture operation of a conventional undersea device.

[Explanation of symbols]

1 Undersea equipment 7 Lifting snake 2 High-pressure gas tank or submersible pump 8 Front-rear thruster 3 Jet hole 4 Piping 5 Valve device 6 Vertical thruster

Claims (1)

[Claims] 1. An undersea device comprising at least one power source, wherein a fluid flow generated by the power source is ejected from a plurality of ejection holes provided in the undersea device to control the posture of the device. Attitude stabilization method for underwater equipment.