CN111862503A - Underwater intrusion alarm arresting system - Google Patents
Underwater intrusion alarm arresting system Download PDFInfo
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- CN111862503A CN111862503A CN201910338914.1A CN201910338914A CN111862503A CN 111862503 A CN111862503 A CN 111862503A CN 201910338914 A CN201910338914 A CN 201910338914A CN 111862503 A CN111862503 A CN 111862503A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
- G08B13/122—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
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Abstract
The invention discloses an underwater intrusion alarm arresting system, which comprises: a barrier net body unit including a plurality of first net sheets connected to each other; the emergency access unit comprises a buoy, a control unit, a lifting device and a second net piece, wherein the lifting device is connected with the second net piece, and the control unit controls the lifting device to lift the second net piece; the alarm positioning unit comprises a remote main monitoring unit and a plurality of sub-monitoring units arranged on the blocking net body, each sub-monitoring unit is electrically connected with at least one signal wire of the first net piece, and the sub-monitoring units monitor voltage changes on the signal wires and transmit monitoring information to the remote main monitoring unit; a mooring unit comprising a buoyancy unit and a counterweight unit. The system provided by the application can effectively intercept and delay underwater target invasion, can alarm and accurately position in real time, can resist severe sea conditions, and can realize that law enforcement ships rapidly enter and exit a sealed sea area.
Description
Technical Field
The invention relates to the technical field of electronic blocking, in particular to an underwater intrusion alarm blocking system.
Background
With the increasing severity of the safety forms of the sea, the underwater guard protection of civil and military facilities such as ports by sea, navigation channels, reefs, offshore operation platforms, special military sea and the like is particularly important.
At present, an overwater and underwater electronic blocking system is adopted to ensure the safety of important targets on the sea, but the existing blocking system easily loses the protection effect when encountering severe sea conditions due to the design defects of the existing blocking system, so that the system reliability is lower, the false alarm rate is higher, the existing system does not have the function of preventing forcible entry and removal, the invasion of frogmans cannot be effectively delayed, an emergency access channel is not preset, and suspicious targets in a protection area cannot be researched, judged and treated in time.
In view of this, it is an urgent need to solve the problem of how to develop an underwater intrusion alarm arresting system which is shear-resistant, anti-demolition, capable of working stably under severe sea conditions, and provided with an emergency access passage.
Disclosure of Invention
In view of the above-mentioned defects or shortcomings in the prior art, it is desirable to provide an underwater intrusion alarm arresting system, which can effectively intercept and delay underwater target intrusion, can alarm in real time and accurately position, can resist severe sea conditions, and can realize that law enforcement ships rapidly enter and exit a sealed and controlled sea area.
The invention provides an underwater intrusion alarm arresting system, which comprises:
the blocking net body unit comprises a plurality of first net pieces which are mutually connected, and a signal wire of each first net piece is electrically connected with the alarm positioning unit;
the emergency access unit comprises a buoy, a control unit, a lifting device and a second net piece, wherein the buoy is used for marking the position of an emergency access channel, the lifting device is connected with the second net piece, and the control unit controls the lifting device to lift the second net piece;
the alarm positioning unit comprises a remote main monitoring unit and a plurality of sub-monitoring units arranged on the blocking net body unit, each sub-monitoring unit is electrically connected with at least one signal wire of the first net piece, and the sub-monitoring units monitor voltage changes on the signal wires and transmit monitoring information to the remote main monitoring unit;
and a mooring unit including a buoyancy unit connected to an upper portion of the arresting net body unit, and a weight unit connected to a lower portion of the arresting net body unit.
Further, the first net piece comprises an upper net head line, a lower net head line, net ropes arranged between the upper net head line and the lower net head line, and at least one reinforcing rib connected with the upper net head line and the lower net head line.
Further, the emergency access unit further comprises an imaging sonar for real-time monitoring of underwater targets passing through the emergency access unit.
Furthermore, the buoyancy unit is connected with the upper net rope through a cable, and the counterweight unit is fixedly connected with the lower net rope.
Further, the mooring unit further comprises fixing piles positioned on two sides of the barrier net body unit, and the fixing piles are fixedly connected with the upper net rope and the lower net rope through cables.
Furthermore, the sub-monitoring units comprise watertight casings, power modules and controllers are arranged inside the watertight casings, and the sub-monitoring units are connected with the remote main monitoring unit through watertight cables.
Furthermore, the buoyancy unit is a floating ball, and the counterweight unit is an anchor chain.
Further, the lifting device is an air bag, and the control unit controls the lifting of the second mesh by controlling the inflation and deflation of the air bag.
Further, the lifting device is a motor, and the control unit controls the lifting of the second mesh by controlling the rotation of the motor.
Further, the control unit and/or the motor are disposed inside the buoy.
Compared with the prior art, according to the technical scheme provided by the application, the arresting net body unit has the functions of shearing resistance and breaking and dismantling prevention, and can effectively intercept the invasion of targets such as underwater frogmans, underwater submergence vehicles, bionic robot fish and the like; the emergency access unit is arranged on the stopping net body unit, so that law enforcement ships can rapidly access the sealed and controlled sea area to study, judge and dispose targets; the alarm positioning unit is arranged on the blocking net body, the voltage of the signal wire is monitored by the sub-monitoring unit and is transmitted to the main monitoring unit, and real-time alarm and accurate positioning can be realized; and a mooring unit is arranged on the barrier net body, so that the safety and the stability of the system can be better ensured.
In an example, the mooring unit is provided with a fixing pile so that the net body is firmly fixed on the sea bottom, and severe sea conditions such as storm surge can be better resisted, so that the survival capability of the arresting system is improved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a block diagram of a system of an underwater intrusion alarm arresting system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an underwater intrusion alarm arresting system according to an embodiment of the present invention;
Fig. 3 is a schematic structural view of a first mesh of a barrier mesh unit according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an emergency access unit according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an alarm locating unit according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a mooring unit according to an embodiment of the present invention.
Reference numerals: the system comprises a first net sheet 1, an upper net line 2, a lower net line 3, reinforcing ribs 4, a buoy 5, a control unit 6, a lifting device 7, a second net sheet 8, an imaging sonar 9, a sub-monitoring unit 10, a remote main monitoring unit 11, a watertight cable 12, a watertight shell 13, a power supply module 14, a controller 15, display and control software 16, a buoyancy unit 17, a counterweight unit 18, a fixing pile 19 and a cable 20.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
At present, the existing overwater and underwater electronic arresting system comprises an overwater arresting device, an underwater arresting device, a monitoring control device and a centralized control center, wherein a supporting structure of the overwater arresting device is a buoyancy support, an overwater protective net is connected with the buoyancy support in an inserting mode, the underwater arresting device is fixed on the seabed through a rope and an anchor hook, and the system is easy to topple, damage and anchor when encountering severe sea conditions such as wind, storm and tide, and has extremely low survivability; moreover, the monitoring control device is only formed by connecting simple detection circuits, so that the problem of safety failure is easy to occur; in addition, the existing system does not preset an emergency access channel, and the research, judgment and disposal of suspicious targets in the sealed control sea area cannot be realized.
Based on this, this application has proposed an intrusion alert arresting system under water, can solve above-mentioned problem. Referring to fig. 1 and 2, the system includes a blocking net body unit, an emergency access unit, an alarm positioning unit and a mooring unit, specifically:
the blocking net body unit comprises a plurality of first net pieces 1 which are connected with each other, a signal wire of each first net piece 1 is electrically connected with the alarm positioning unit, and the first net pieces are shown in fig. 3;
preferably, the first net piece is woven by a polymer composite net rope with a built-in signal wire, the net rope mainly comprises the signal wire, a reinforcing rib, an insulating layer and a protective layer, and has the characteristics of good flexibility, shearing resistance, adhesion resistance and corrosion resistance. The signal line of the first mesh sheet may be present outside the first mesh sheet; the net rope can be replaced by nylon or Dinima with embedded signal wires.
In addition, the first net piece can realize electric signal transmission due to the embedded signal wire, and is electrically connected with the alarm positioning unit, when the net rope is broken, the alarm positioning unit can monitor the voltage change of the first net piece, and then alarm is realized.
An emergency access unit, as shown in fig. 4, including a buoy 5, a control unit 6, a lifting device 7 and a second mesh 8, wherein the buoy 5 is used for identifying the position of an emergency access passage, the lifting device 7 is connected with the second mesh 8, and the control unit 6 controls the lifting device 7 to lift the second mesh 8; the emergency access unit is arranged in a specific area of the blocking net body unit, when the net rope is broken and an alarm is given, the control unit controls the lifting device to open the emergency access unit, and the law enforcement ship quickly enters a sealed area to be researched, judged and disposed, so that safety of key targets on the sea is guaranteed;
preferably, the second mesh sheet is formed by connecting a plurality of first mesh sheets to monitor whether the second mesh sheet is broken, and may be formed by connecting other mesh sheets not including signal lines from the economical viewpoint.
Preferably, the number of the buoys for identifying the second mesh is two, and the buoys are respectively positioned at two sides of the emergency access channel.
Preferably, the control unit is arranged in the buoy, or can be arranged independently; a controller capable of controlling the operation of the lifting device is disposed in the control unit, a Programmable Logic Controller (PLC) is preferably used in this embodiment to monitor and alarm the electric signals in the arresting network, and a single chip microcomputer, a Field Programmable Gate Array (FPGA), an advanced RISC processor (ARM), and the like may also be used.
Specifically, a Programmable Logic Controller (PLC) is a digital arithmetic operation electronic system designed specifically for use in an industrial environment, and is essentially a computer dedicated to industrial control. The PLC hardware structure is basically the same as that of a microcomputer, and is composed of a power supply, a central processing unit, a memory, an input unit, and an output unit. When the PLC is put into operation, the working process of the PLC is generally divided into three stages, namely, three stages of input sampling, user program execution and output refreshing. The completion of the above three phases is called one scanning cycle, and the central processing unit of the PLC repeatedly performs the above three phases at a certain scanning speed during the entire operation. The PLC has the functional characteristics of high reliability, easiness in programming, flexibility in configuration, convenience in installation, high running speed and the like.
The alarm positioning unit, as shown in fig. 5, includes a remote main monitoring unit 11 and a plurality of sub-monitoring units 10 disposed on the blocking net body unit, each sub-monitoring unit 10 is electrically connected to at least one signal line of the first net sheet 1, and the sub-monitoring units 10 monitor voltage changes on the signal lines and transmit monitoring information to the remote main monitoring unit 11;
it should be noted that each sub-monitoring unit can simultaneously monitor the voltage information of a plurality of first meshes; each first mesh has a corresponding number, and the monitoring information comprises the number corresponding to the first mesh in addition to the voltage information, so that the position of the broken mesh can be accurately positioned; the remote main monitoring unit and the sub-monitoring unit are internally provided with controllers capable of monitoring the voltage change of the signal line, and the PLC is preferably adopted in the embodiment.
The alarm positioning unit further comprises display and control software 16, the display and control software 16 is installed on a computer of a monitoring room, when the sub-monitoring unit transmits voltage change information on the signal wire to the remote main monitoring unit, the remote main monitoring unit collects and analyzes the information and transmits the information to the computer of the monitoring room, and the display and control software displays real-time dynamic state of the blocking net body and accurately positions and alarms the broken net piece; compared with the prior art that a simple detection circuit is adopted for detection control, the alarm positioning unit is stable and reliable, and is safer in actual use.
The mooring unit, as shown in fig. 6, includes a buoyancy unit 17 connected to the upper portion of the arresting net body unit, and a counterweight unit 18 connected to the lower portion of the arresting net body unit, the buoyancy unit 17 is fixedly connected to the headrope 2 on the arresting net body through a cable 20 at a certain interval to provide buoyancy for the arresting net body, and the counterweight unit 18 is fixedly connected to the headrope 3 under the arresting net body to ensure that the arresting net body is spread to the seabed, so as to form a fully-closed protection from the water surface to the seabed. Preferably, the buoyancy unit is a floating ball, and the counterweight unit is an anchor chain, but the buoyancy unit may be other devices with buoyancy.
According to the underwater intrusion alarm arresting system provided by the embodiment, the arresting net body unit has the functions of shearing resistance and breaking and dismantling prevention, and can effectively intercept the intrusion of targets such as underwater frogman, underwater submergence vehicles, bionic robot fish and the like; the emergency access unit is arranged on the stopping net body unit, so that law enforcement ships can rapidly access the sealed and controlled area to study, judge and dispose targets; the alarm positioning unit is arranged on the blocking net body, the voltage of the signal wire is monitored by the sub-monitoring unit and is transmitted to the main monitoring unit, and real-time alarm and accurate positioning can be realized; the mooring unit is arranged on the barrier net body, so that the safety and the stability of the system can be better ensured.
Further, as shown in fig. 3, the first net sheet includes an upper net 2, a lower net 3, net ropes arranged between the upper net and the lower net, and at least one reinforcing rib 4 connecting the upper net and the lower net.
Specifically, the number of the first net sheets is determined by a specific protection range, and the mesh size of the net rope is determined according to specific protection requirements; each net piece is as independent monitoring unit, and the size of its monitoring unit size has decided the precision of warning location, and the length and the height of monitoring unit are the less, and positioning accuracy is higher, specifically according to the protection demand and decide.
Preferably, the upper net line and the lower net line are used as supporting and fixing structures of the net sheets, and polymer strong ropes with the diameter of 32mm are adopted; the reinforcing ribs on each first net piece can be a plurality of, are preferably high-molecular strong ropes with the diameter of 16mm, are smaller than the net body height, are longitudinally connected with the upper net rope and the lower net rope, can effectively avoid overlarge stress of the net ropes, and enhance the anti-collision capacity of the net body blocking unit.
Further, as shown in fig. 4, the emergency access unit further includes an imaging sonar 9 for real-time monitoring of underwater objects passing through the emergency access unit. When the emergency access unit is started, the lifting device drives the second net piece to sink to the seabed, imaging sonars are distributed at emergency access and exit in the process that a law enforcement ship quickly passes through the emergency access channel, and whether a target passes through underwater borrowing machines or not can be continuously monitored.
Further, as shown in fig. 6, the mooring unit further includes fixing piles 19 at both sides of the arresting net body unit, and the fixing piles 19 are fixedly connected to the upper and lower headlines 2 and 3 through cables 20.
Specifically, a row of fixing piles are arranged on two sides of the arresting net body unit, and the mooring ropes are fixedly connected with the upper net head line and the lower net head line of the arresting net body respectively to form triangular fixing, so that the arresting system is guaranteed to have strong viability, can resist severe sea conditions such as storm tide and the like, meanwhile, the position and the posture of the arresting net body in water are guaranteed, and the system efficiency is fully exerted.
Preferably, the cable is a polymer cable, which has high strength, wear resistance and corrosion resistance.
Preferably, the fixed piles are steel pipe piles, so that the safety and stability of the system can be guaranteed; in a sea area with good sea conditions, Bohr anchors, naval anchors, sinking blocks and the like can be selected, and rapid arrangement can be realized on the premise of ensuring the safety and stability of the system.
Further, as shown in fig. 5, the sub-monitoring units 10 include a watertight housing 13, a power module 14 and a controller 15 are disposed inside the watertight housing 13, and the plurality of sub-monitoring units 10 and the remote main monitoring unit 11 are connected by the watertight cables 12.
Specifically, the power supply module supplies power to the controller and the first mesh; the inlet and outlet joints of the watertight shell are designed watertight, so that the interior of the shell can be ensured not to be soaked, and the power module and the controller can be ensured to work normally; the watertight cable is adopted to connect each watertight shell and the remote main monitoring unit, so that the transmission of electric power and communication can be realized, and the watertight cable adopts a longitudinal watertight form and has better bending performance and lateral pressure resistance.
It should be noted that, a power module and a controller are also arranged inside the remote main monitoring unit, wherein the power module can realize power supply for remote transmission, a CANopen cable is adopted between the controller and the controller in the sub-monitoring unit for communication transmission, and preferably, the CANopen cable exists in a watertight cable. In particular, CANopen is a high-level communication protocol over a Controller Area Network (CAN), including communication sub-protocols and device sub-protocols, commonly used in embedded systems, and is also a field bus commonly used in industrial control.
In order to further understand the underwater intrusion alarm and arresting system provided by the application, an underwater intrusion alarm and arresting system which integrates interception, positioning and alarming and is established underwater in an important sea area is taken as an example for description.
As shown in fig. 2, the system includes a blocking net body unit, an emergency access unit, an alarm positioning unit and a mooring unit, specifically:
the blocking net body unit comprises a plurality of first net pieces 1 which are mutually connected, and a signal wire of each first net piece 1 is electrically connected with the alarm positioning unit;
an emergency access unit, as shown in fig. 4, including a buoy 5, a control unit 6, a lifting device 7 and a second mesh 8, wherein the buoy 5 is used for identifying the position of an emergency access passage, the lifting device 7 is connected with the second mesh 8, and the control unit 6 controls the lifting device 7 to lift the second mesh 8;
in this embodiment, the emergency access unit is called an opening and closing unit, the buoy is of a floating box structure, the control unit is of a control box structure, the lifting device is an air bag, the opening and closing unit adopts two floating boxes to identify the position of the opening and closing unit, one of the floating boxes is internally provided with the control unit, namely the control box, and the control box is internally provided with a power supply, a PLC slave station, an inflator pump, an air suction pump, an air pressure switch, an electromagnetic valve, a hose and the like; the bottom of the air bag is provided with an anchor chain as a balance weight, and is fixedly connected with the second net piece through a polymer cable, and the control box controls the air bag to float upwards and suck air to sink, so that the second net piece is driven to lift to realize the opening and closing functions of the opening and closing unit. When the net rope is broken and an alarm is given, the control box controls the air bag to open the opening and closing unit, the law enforcement ship quickly enters a sealing and controlling area to conduct target study and judgment and treatment, and meanwhile, imaging sonar is arranged at the opening and closing unit, so that the situation that a target borrows the machine to pass under the condition of no water can be monitored in real time.
In another embodiment, different from the above embodiments, the lifting device is a motor, the motor pulls the second mesh sheet to lift, so as to achieve the opening and closing functions of the emergency access passage, and both the motor and the control unit can be installed in the buoyancy tank, or can be installed at other positions, depending on specific requirements. It should be noted that, for the descriptions of the same steps and the same contents in this embodiment as those in the foregoing embodiment, reference may be made to the descriptions in the foregoing embodiment, and details are not described here again.
The alarm positioning unit, as shown in fig. 5, includes a remote main monitoring unit 11 and a plurality of sub-monitoring units 10 disposed on the blocking net body unit, each sub-monitoring unit 10 is electrically connected to at least one signal line of the first net sheet 1, and the sub-monitoring units 10 monitor voltage changes on the signal lines and transmit monitoring information to the remote main monitoring unit 11; the sub-monitoring units 10 comprise watertight casings 13, a power supply module 14 and a controller 15 are arranged inside the watertight casings 13, and the plurality of sub-monitoring units 10 and the remote main monitoring unit 11 are connected through the watertight cables 12;
In the embodiment, the remote main monitoring unit is a shore end control box, the sub-monitoring unit is a watertight tank, the watertight shell is a watertight tank body, and the watertight shell is made of stainless steel through punching; the controller in the watertight tank body is a PLC slave station, and the controller in the shore-end control box is a PLC master station; a power supply module in the watertight tank converts the 375V direct current into 24V direct current through a watertight cable so as to supply the PLC slave station and the first net piece; the PLC slave station monitors the voltage value on the signal line of the first net piece in real time, when the net rope is broken, the voltage value changes, the PLC slave station monitors abnormity and transmits monitoring information to the PLC master station in the shore end control box, and one PLC slave station can monitor a plurality of first net pieces at the same time according to specific actual requirements; a power supply module in the shore-end control box converts 220V alternating current into 375V direct current, so that long-distance current transmission can be realized; the display and control software is installed on a computer of the monitoring seat, can display the state and the alarm information of the barrier network system in real time, and can realize the opening and closing functions of the opening and closing unit through interface operation.
A mooring unit, as shown in fig. 6, including a buoyancy unit 17 connected to an upper portion of the arresting net body unit, and a weight unit 18 connected to a lower portion of the arresting net body unit; the mooring unit further comprises fixing piles 19 positioned on two sides of the arresting net body unit, and the fixing piles 19 are fixedly connected with the upper net line 2 and the lower net line 3 through cables 20;
In the embodiment, the floating balls are adopted for the buoyancy units, the anchor chains are adopted for the counterweight units, the steel pipe piles are adopted for the fixing piles, the second net sheets are connected by adopting a plurality of first net sheets, the anchor chains are also arranged on the lower net lines at the bottoms of the second net sheets, and the contact parts of the two sides of the bottoms of the second net sheets and the first net sheets are also connected through cables to further fix the second net bodies; the steel pipe piles are arranged on two sides of the arrangement position of the arresting net body unit and are arranged in a row respectively, the steel pipe piles are 50cm higher than the seabed and are fixedly connected with the upper net line and the lower net line of the net body respectively through polymer cables to form triangular fixation, so that severe sea conditions and collision of large-sized floating objects can be resisted smoothly, the arrangement posture of the arresting net body in water is ensured, and the system is more stable and reliable.
It should be noted that, for the descriptions of the same steps and the same contents in this embodiment as those in other embodiments, reference may be made to the descriptions in other embodiments, which are not described herein again.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (10)
1. An underwater intrusion alarm arresting system, comprising:
the blocking net body unit comprises a plurality of first net pieces which are mutually connected, and a signal wire of each first net piece is electrically connected with the alarm positioning unit;
the emergency access unit comprises a buoy, a control unit, a lifting device and a second net piece, wherein the buoy is used for marking the position of an emergency access passage, the lifting device is connected with the second net piece, and the control unit controls the lifting device to lift the second net piece;
the alarm positioning unit comprises a remote main monitoring unit and a plurality of sub-monitoring units arranged on the blocking net body unit, each sub-monitoring unit is electrically connected with at least one signal wire of the first net piece, and the sub-monitoring units monitor voltage changes on the signal wires and transmit monitoring information to the remote main monitoring unit;
and a mooring unit including a buoyancy unit connected to an upper portion of the arresting net body unit, and a weight unit connected to a lower portion of the arresting net body unit.
2. The underwater intrusion alarm and arresting system of claim 1 wherein the first net sheet includes an upper net rail, a lower net rail, net cords disposed between the upper and lower net rails, and at least one reinforcing bar connecting the upper and lower net rails.
3. The underwater intrusion alarm arresting system of claim 1 wherein the emergency access unit further comprises imaging sonar for real time monitoring of underwater objects passing through the emergency access unit.
4. The underwater intrusion alarm arresting system of claim 2 wherein the buoyancy unit is connected to the upper net rail by a cable and the counterweight unit is fixedly connected to the lower net rail.
5. The underwater intrusion alarm arresting system of claim 4 wherein the mooring unit further comprises spuds located on either side of the arresting net body unit, the spuds being fixedly connected to the upper and lower net lines by cables.
6. The underwater intrusion alarm arresting system of claim 1 wherein the sub-monitoring units comprise watertight housings having power modules and controllers disposed therein, the sub-monitoring units being connected to each other and to the remote main monitoring unit by the watertight cables.
7. The underwater intrusion alarm arresting system of claim 1 wherein the buoyancy unit is a floating ball and the counterweight unit is an anchor chain.
8. The underwater intrusion alarm arresting system of claim 1 wherein the lifting device is an air bag and the control unit controls the lifting of the second net by controlling the inflation and deflation of the air bag.
9. The underwater intrusion alarm arresting system of claim 1 wherein the lifting device is a motor and the control unit controls the lifting of the second net by controlling the rotation of the motor.
10. The underwater intrusion alarm arresting system of claim 8 or 9 wherein the control unit and/or the motor is disposed within the buoy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338914.1A CN111862503A (en) | 2019-04-25 | 2019-04-25 | Underwater intrusion alarm arresting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338914.1A CN111862503A (en) | 2019-04-25 | 2019-04-25 | Underwater intrusion alarm arresting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111862503A true CN111862503A (en) | 2020-10-30 |
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| CN109914346A (en) * | 2019-04-09 | 2019-06-21 | 泰州市金海运船用设备有限责任公司 | The opening and closing door gear of underwater arresting net |
| CN210119842U (en) * | 2019-04-25 | 2020-02-28 | 中电科海洋信息技术研究院有限公司 | Underwater intrusion alarm arresting system |
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| US4688024A (en) * | 1985-04-24 | 1987-08-18 | Safe Bridge Ab | Barrier arrangement and a method for producing the same |
| US5154537A (en) * | 1991-05-28 | 1992-10-13 | The United States Of America As Represented By The Secretary Of The Navy | Barrier curtain |
| CN200967949Y (en) * | 2006-10-19 | 2007-10-31 | 中国水电顾问集团华东勘测设计研究院 | Large span waterborne safety protection facilities |
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| RU2681149C1 (en) * | 2017-11-14 | 2019-03-04 | федеральное государственное бюджетное образовательное учреждение высшего образования "Алтайский государственный университет" | Shore protection boom defense |
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