CN1162069C

CN1162069C - Deep water net cage capable of automatic detecting net damage and giving out alarm

Info

Publication number: CN1162069C
Application number: CNB021454760A
Authority: CN
Inventors: 李建平; 杨明; 陈江春; 叶盛
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2002-11-14
Filing date: 2002-11-14
Publication date: 2004-08-18
Anticipated expiration: 2022-11-14
Also published as: CN1409963A

Abstract

The present invention discloses a deepwater net cage which can automatically detect the damage of a net and send out the alarm. The present invention comprises a net frame, a net which is arranged at the periphery of the net frame and is encircled by a plurality of net pieces, a net frame balancing weight, and a monitoring system which is composed of a signal transmitter and a signal receiver and has the function of net damage alarm. Metal conducting wires with insulating protection layers are added into net wires of the net pieces, and the metal conducting wires are connected with one end of each of metal conducting wires on a net which is braided according to the conventional braiding method of net pieces along the longitudinal braiding direction in parallel according to the division of the net pieces, and are sealed by adhesives. Both ends of each of the metal conducting wires are respectively connected with one end of the signal transmitter, and the other end of each of the metal conducting wires is sealed by adhesives. An electrode which is inserted below water is also connected to the signal transmitter. The present invention uses seawater as a conductor. When the net is damaged, the circuit is not switched on. When the net is damaged, the current is switched into a circuit by the seawater through the electrode. The signal transmitter sends out a code signal of the corresponding position, the signal receiver receives the code signal, a net damage or circuit fault position signal of the corresponding position is displayed by decoding, and an alarm signal is sent out.

Description

Can detect the deep water mesh cage that etting is damaged and report to the police automatically

Technical field

The present invention relates to detect the deep water mesh cage that etting is damaged and report to the police automatically.

Background technology

Deep water mesh cage can not in time be found to cause the fish in the case and escapes in a large number owing to the etting breakage, the raiser is brought about great losses, thereby restricted the development of cage culture, and use at present in water with the method for optics shooting light, the ir supervisor that can in water, work commonly used, then surveillance needs long-time non-stop run, energy consumption is big, and if in mixing water then optical system do not prove effective, if with the bigger investment of needs just of sonar method, impracticable.Cause the etting breakage to happen occasionally owing to a variety of causes at present, if can in time find the etting breakage, and adopt an effective measure, the economic loss of bringing by the fish escape then can significantly be reduced.Also there is not at present a kind of net cage that can be used for the damaged real-time detection of deep water net cage net clothing.

Summary of the invention

The purpose of this invention is to provide and a kind ofly can detect the deep water mesh cage that etting is damaged and report to the police automatically, in case disrumpent feelings the warning immediately of etting knows that in time the etting damage location can repair.

For achieving the above object; the technical solution used in the present invention is as follows: it comprises rack; be contained in the etting that rack is surrounded by several pieces net sheets on every side; the rack balancing weight; the monitoring system of the etting breakage alarm function of forming by signal projector and signal receiver; the plain conductor that in the netting twine of net sheet, adds the tape insulation protective layer; the trend of plain conductor is consistent with the netting twine of etting trend; along an end of the plain conductor on the braiding longitudinal direction etting by net sheet subregion and connect together; seal with the sea water resistance fluid sealant again; its two end a; b is connected on an end of signal projector respectively; the other end along the plain conductor on the braiding longitudinal direction etting; every plain conductor is sealed with the sea water resistance fluid sealant, also is connected to insertion electrode under water on signal projector.

The beneficial effect that the present invention has is: it is conductor with the seawater, not conducting of circuit when net is not broken, electric current became the loop by seawater through electrode conduction when net was broken, signal projector sends the code signal of corresponding site, signal receiver is received code signal, demonstrate the etting breakage or the line fault position signalling of corresponding site through decoding, and send alarm signal.The present invention can significantly reduce owing to the etting breakage, the economic loss that causes fish to escape and bring.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the monitoring system connection diagram of the net sheet and the warning function of not suspension line;

Fig. 3 is the monitoring system connection diagram of the net sheet and the warning function of suspension line;

Fig. 4 is a polygon cage structure schematic diagram;

Fig. 5 is a circular net box structure schematic diagram.

Embodiment

As Fig. 1; shown in Figure 2; it comprises rack 2; be contained in the etting 1 that rack 2 is surrounded by several pieces net sheets 7 on every side; rack balancing weight 6; the monitoring system of the etting breakage alarm function of forming by signal projector 3 and signal receiver 4; the plain conductor that in the netting twine of net sheet 7, adds the tape insulation protective layer; the trend of plain conductor is consistent with the netting twine of etting trend; along an end of the plain conductor on the braiding longitudinal direction etting 1 by net sheet 7 subregions and connect together; seal with the sea water resistance fluid sealant again; its two end a; b is connected on an end of signal projector 3 respectively; the other end along the plain conductor on the braiding longitudinal direction etting 1; every plain conductor is sealed with the sea water resistance fluid sealant, also is connected to insertion electrode 5 under water on signal projector 3.Said etting is not for having knot prismatic net or not having knot hexagon net or do not have the tying-in netting or knot prismatic net or knotless joining net are arranged.

As shown in Figure 4, rack is the polygon rack, forms to cover polygon floating type net cage A or uncovered polygon floating cage B.

As shown in Figure 5, rack is a circular net, and forming has circular floating type net cage C of lid or the circular floating cage D of uncovered.

When Fig. 2 represents that net sheet 7 breaks normal condition, non-conductive, when Fig. 3 represents 7 breakages of net sheet, the netting twine of arbitrary place lead disconnects on the net sheet 7, then electric current conducting by seawater, electrode 5, connect warning circuit, send alarm signal in wireless or wired mode then, lead on the etting 1 is formed a net sheet 7 of pressing the certain way parallel connection, in case any one is by disconnected on the net sheet 7, then electric current forms a path by seawater, and alarm circuit is worked, and know net sheet 7 damage locations, take measures to repair.

Claims

1. can detect the deep water mesh cage that etting is damaged and report to the police automatically; it comprises rack (2); be contained in the etting (1) that rack (2) is surrounded by several pieces net sheets (7) on every side; rack balancing weight (6); the monitoring system of the etting breakage alarm function of forming by signal projector (3) and signal receiver (4); it is characterized in that: the plain conductor that in the netting twine of net sheet (7), adds the tape insulation protective layer; the trend of plain conductor is consistent with the netting twine of etting trend; along an end of the plain conductor in braiding longitudinal direction etting (1) by net sheet (7) subregion and connect together; seal with the sea water resistance fluid sealant again; its two end a; b is connected on an end of signal projector (3) respectively; the other end along the plain conductor on the braiding longitudinal direction etting (1); every plain conductor is sealed with the sea water resistance fluid sealant, also is connected to insertion electrode (5) under water on signal projector (3).

2. according to claim 1ly can detect the deep water mesh cage that etting is damaged and report to the police automatically, it is characterized in that: said etting is not for having knot prismatic net or not having knot hexagon net or do not have the tying-in netting or knot prismatic net or knotless joining net are arranged.

3. the deep water mesh cage that can detect the etting breakage automatically and report to the police according to claim 1, it is characterized in that: said rack is the polygon rack, forms to cover polygon floating type net cage (A) or uncovered polygon floating cage (B).

4. the deep water mesh cage that can detect the etting breakage automatically and report to the police according to claim 1, it is characterized in that: said rack is a circular net, forming has lid circular floating type net cage (C) or uncovered circle floating cage (D).