CN1653702A

CN1653702A - Improved Watercraft Hulls

Info

Publication number: CN1653702A
Application number: CNA038103869A
Authority: CN
Inventors: 迈克尔·韦斯科比唐
Original assignee: SeaChange Technology Holdings Pty Ltd
Current assignee: SeaChange Technology Holdings Pty Ltd
Priority date: 2002-05-06
Filing date: 2003-05-06
Publication date: 2005-08-10
Also published as: BRPI0309899A8; US20060016379A1; ZA200408981B; WO2003094370A1; AUPS214202A0; AU2003225326A1; JP2005524571A; BRPI0309899A2

Abstract

A shell (10) for a watercraft forms a shark-repelling zone around the vessel. The shell (10) includes two electrodes connected to an electromagnetic field signal generator. When in use, the electrodes generate an electromagnetic field (40) around the vessel that repels sharks. The electrodes can be formed by the ends of an electrode wire (23) or by conductor (24, 25) plates (20, 21) mounted on or integrated with the shell (10).

Description

Improved aquatic vessel hull

Technical field

The present invention relates in water body, generate an electromagnetic field to drive aquatic organism for example device of shark and application.

Background technology

Many devices have been known for driveing aquatic organism.Great majority in these devices are designed to generate an electromagnetic field near the scuba diver, form barrier or boundary in the perhaps nigh water.

The great majority research of being carried out is the aquatic organism subgroup of Elasmobranchii, or perhaps shark.Most of sharks are driven device and adopt electromagnetic pulse, and antenna or electrode by under water are transported in the water, to produce suitable electromagnetic field near the entertainer in swimmer, scuba diver or general water.

Can adopt polytype pulse signal generator, its feature comprises following specification: signal duration, repetition rate, amplitude and pulse rise time.The value of each feature or scope all will carefully be selected, and are considered to the most effective electromagnetic field so that produce.

In the past, the sort signal generator has been placed on one's body the swimmer, and perhaps using requiring as separate unit does not have in the zone of shark.

Not only the individual has the danger of being attacked by shark, and small aquatic (for example surfboard, skin raft, raft and canoe) also can be disturbed by shark sometimes.

An object of the present invention is to provide a kind of device, produce around the ship on the water by this device and drive the electromagnetic field of shark, is the danger that shark was disturbed to reduce ship.

Summary of the invention

According to a first aspect of the invention, provide a kind of aquatic vessel hull, it is suitable for the electrode of supporting at least two can connect the electromagnetic field signal generator, in use, electrode generates an electromagnetic field in the water body around the ship, and electromagnetic field plays the effect of driveing selected aquatic organism.

Aquatic vessel hull preferably includes at least two grooves, is used for holding each of these at least two electrodes, makes these at least two electrodes can not stretch out the upper surface of this housing basically.

Aquatic vessel hull preferably also comprises a groove that connects described groove, and described groove is suitable for holding an electrode wires, and electrode wires is at each end electrode of described at least two electrodes of termination all.

Preferred these grooves that form like this make that the electromagnetic field distribution efficiency that produces by described electrode in use can be maximum.

According to a second aspect of the invention, provide a kind of aquatic vessel hull, comprise at least two electrodes that can connect the electromagnetic field signal generator, in use, described electrode generates an electromagnetic field in the ship water body on every side on the water, and described electromagnetic field plays the effect of driveing selected aquatic organism.

Preferably, these electrodes can not stretch out the surface of described housing basically.

These electrodes preferably are contained in the interior corresponding recesses of described housing.

Preferably, these electrodes constitute each end of electric wire, and cable holding connects in the groove of described groove in described housing.

As selection, electrode comprises corresponding conductive plate.

Description of drawings

Figure 1 shows that the end view of aquatic vessel hull according to the preferred embodiment of the invention;

Figure 2 shows that the plane graph at the aquatic vessel hull top of Fig. 1;

Figure 3 shows that the plane graph of the aquatic vessel hull bottom of Fig. 1;

The housing of Fig. 4 presentation graphs 3 has inserted electrode wires (electrode cord);

Fig. 5 represents to be used for the groove of accommodate electric field signal generator in detail;

Figure 6 shows that the cutaway view of the A-A ' line of groove in Fig. 3;

A kind of replacement that Figure 7 shows that Fig. 1 middle shell is arranged;

Housing in Fig. 8 presentation graphs 1 uses and generates an electromagnetic field.

Embodiment

Should be appreciated that word " waterborne vessel " refers to any suitable ship, comprise surfboard, surfing rescue slide plate, skin raft, sailing boat, canoe, steamer and be through aquaplane on user's pin.

Figure 1 shows that a kind of end view of typical aquatic vessel hull 10.Groove 11 is set in housing 10, is used to hold an electric wire (not shown), electrode is all arranged at the two ends of electric wire.The type that is suitable for the electrode wires of this application is the theme of PCT patent application PCT/AU02/01297 of applying for together, quotes its content here as a reference.But, should be noted in the discussion above that and can adopt other any suitable arrangement of electrodes.

The electrode (not shown) of

medium altitude groove

12 and 13 hold electrodes lines slips over groove 11 with electrode wires during use, is in suitable position up to two electrodes in

corresponding grooves

12 and 13, is fixed in position by any suitable method then.

Fig. 2 and 3 has shown these features respectively in top plan view and bottom plan view.

Figure 4 shows that the view that in groove 11, has inserted an electrode wires 23 among Fig. 3 (bottom view).As the two ends of electric wire 23, electrode 24 and 25 is contained in respectively in

groove

12 and 13.

Groove 11 can hold a fibrous glass pipe 11a (see figure 6), and electrode wires can slip over this fibrous glass pipe 11a.Cover then or filling groove 11, like this to keep the outer surface profile of housing 10.

Groove

12 and 13 is shaped like this, makes that the electrode that exposes can be from its radiation effectively of position in housing.As seeing among Fig. 6,

groove

12 and 13 preferred range of angles are 100 °-110 °.

Housing 10 comprises that also can be used a groove or cavitys 14 that cover 15 sealings.Groove 14 is suitable for holding and deposits an electric field signal generator.The sort signal generator is known, has described a suitable this generator in Australian Patent No.669806.But can adopt any suitable electric field signal generator.

Groove 14a provides a kind of device (see figure 5) that signal generator can be connected on the electrode.

A housing that adds electrode therein is provided, and also in design scope of the present invention, these electrodes can connect the appropriate signals generator for this.These electrodes can be made up of the conductor of metallic plate or other any appropriate configuration, electrode can be connected on the housing, perhaps form electrode and housing as a whole.For example, the part of housing front end can be made by the plate of metal or other conduction, perhaps can comprise the plate of metal or other conduction, so that first electrode to be provided, and the part of housing rear end can be made by the plate of metal or other conduction, forms second electrode.This layout as shown in Figure 7, battery lead plate shown in it 20,21 is included in housing 10 the insides.When being connected with the appropriate signals generator, these plates can the required electromagnetic field of radiation, to produce the zone of driveing shark in the water around the housing.

Housing in Fig. 8 presentation graphs 1 has added electric wire, and this electric wire has the electrode (not shown) of ensconcing in

groove

12 and 13, and uses this housing in water body 30.

When enabling signal generator (not shown), signal generator makes the electrode (not shown) generate an electromagnetic field 40 around housing 10, forms the zone of driveing shark around ship.This has reduced that shark is attacked ship or near the people's in the water (for example people who falls down from ship) risk ship.

Although be described according to preferred embodiment above, should be understood that: can make further improvement and change within the scope of the invention.

Claims

1. A watercraft hull adapted to support at least two electrodes connectable to an electromagnetic field signal generator, in use, the electrodes generate an electromagnetic field in the water surrounding the vessel, the electromagnetic field acting to repel selected aquatic organisms.

2. The watercraft hull according to claim 1, wherein said watercraft hull includes at least two recesses for receiving each of the at least two electrodes such that the at least two electrodes do not extend substantially. out the surface of the housing.

3. The watercraft hull according to claim 2, wherein said watercraft hull further comprises a groove connected to said groove, said groove being adapted to receive an electrode wire terminated at each end connected to one of the at least two electrodes.

4. A watercraft hull according to claim 3, wherein said grooves are formed such that, in use, the efficiency of distribution of the electromagnetic field generated by said electrodes is maximized.

5. A water vessel shell, comprising at least two electrodes that can be connected to an electromagnetic field signal generator, when in use, the electrodes generate an electromagnetic field in the water body around the water vessel, and the electromagnetic field plays a role in driving away selected aquatic organisms role.

6. The watercraft hull of claim 5, wherein said at least two electrodes do not substantially protrude beyond the surface of said hull.

7. A watercraft hull according to any one of claims 5 or 6, wherein said at least two electrodes are received in respective recesses within said hull.

8. A watercraft hull according to claim 7, wherein said at least two electrodes form respective ends of electrical wires received in grooves in said hull connecting said grooves.

9. The watercraft hull of claim 6, wherein said at least two electrodes comprise respective conductive plates.

10. A watercraft hull according to claim 7, wherein said grooves are formed such that, in use, the electromagnetic field generated by said electrodes is distributed efficiently.