CN113655192A - Methane monitoring node device and system applied to electromagnetic coupling transmission anchor system - Google Patents
Methane monitoring node device and system applied to electromagnetic coupling transmission anchor system Download PDFInfo
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- CN113655192A CN113655192A CN202111024638.5A CN202111024638A CN113655192A CN 113655192 A CN113655192 A CN 113655192A CN 202111024638 A CN202111024638 A CN 202111024638A CN 113655192 A CN113655192 A CN 113655192A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1886—Water using probes, e.g. submersible probes, buoys
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C13/00—Surveying specially adapted to open water, e.g. sea, lake, river or canal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
Abstract
The invention discloses a methane monitoring node device and a system applied to an electromagnetic coupling transmission anchor system, wherein the system comprises a buoy monitoring mechanism, an anchor body and a monitoring mechanism arranged between the buoy monitoring mechanism and the anchor body, the monitoring mechanism comprises a plurality of node devices and a plastic-coated steel cable, and the node devices are sequentially connected with the plastic-coated steel cable from the buoy monitoring mechanism to the anchor body; the plastic-coated steel cable, the node device and the buoy monitoring mechanism are communicated; and the buoy monitoring mechanism is used for monitoring the water surface and communicating with the outside. In the invention, a plurality of node devices are arranged between the buoy monitoring mechanism and the anchor body to carry out segmented monitoring on the water body in the target sea area, and meanwhile, the anchor body is used for fixing the underwater posture of the node devices and enhancing the current resistance, so that the node devices can finish long-term effective monitoring work, underwater communication is realized through the plastic-coated steel cable, and then the buoy monitoring mechanism is used for communicating with the outside.
Description
Technical Field
The invention relates to the technical field of ocean exploration, in particular to a methane monitoring node device and a methane monitoring node system applied to an electromagnetic coupling transmission anchor system.
Background
In the occurrence area of the marine natural gas hydrate, strong natural methane leakage activity often exists, and meanwhile, when deep sea drilling or hydrate exploitation operation is carried out, the condition that seabed methane leaks into seawater can also occur. On one hand, methane entering seawater can change the physical and chemical properties of seawater due to oxidation reaction; if a large amount of methane directly enters the seawater, a large amount of oxygen in the seawater can be consumed, and the death of marine organisms is accelerated by the anoxic condition of the seawater; global warming is exacerbated if large quantities of methane gas enter the atmosphere through seawater. On the other hand, a large amount of methane directly entering seawater can accelerate ocean gasification, so that seawater flows at an accelerated speed, air pressure entrainment is formed, safety of sea ships and operation platforms is seriously damaged, even strong convection seawater directly enters the air, and safety of aviation and land buildings is influenced. Therefore, the monitoring of the methane content of the ocean vertical section water body in the natural gas hydrate occurrence area is particularly important. Conventional monitoring system lacks the omnidirectional monitoring to the water, in addition, the methane of seabed seepage gets into the water after, can produce complicated migration action because hydrodynamic force environmental change, and conventional monitoring system can only monitor a certain water layer methane content change and lack monitoring and aassessment to hydrodynamic force environment, the condition such as misjudgement to target sea area methane diffusion, migration law and hydrology environmental characteristic appears easily.
In addition, with the development of modern marine science, effective monitoring of marine three-dimensional environment is more and more important, long-term fixed-point monitoring is required for monitoring and measuring relevant parameters such as temperature, salinity, pressure and ocean current characteristics of seawater so as to obtain hydrological data of a certain sea area, and in the prior art, a seabed Lander (Lander) and a deep sea submerged buoy are mostly adopted as long-term fixed-point monitoring means. The seabed Lander (Lander) can acquire seabed methane and hydrological environment data, but monitoring data cannot be effectively transmitted back in real time; although the deep sea submerged buoy can regularly send monitoring data to the ground receiving station, the deep sea submerged buoy can only acquire hydrological environment data of a certain fixed water layer, and the working performance is easily influenced by severe sea conditions.
Chinese patent No.: CN201310711235.7 discloses a submerged buoy data transmission system, which comprises a spherical pressure-resistant cabin, a signal cable, a load, a receiving end, a pressure sensor, a starter, a battery pack, a transmitter, a memory, an upper support plate, a lower support plate, and a measurement sensor, wherein the pressure sensor is located inside the spherical pressure-resistant cabin and fixed at the lower end of the lower support plate. However, the technical solution disclosed in the patent still has the following defects: firstly, a load is connected with a memory through a signal cable, and the tensile strength, the flow resistance and the hardness of the signal cable are far smaller than those of a common steel cable, so that the cable breakage condition is easy to occur in the monitoring process; secondly, the positions monitored by the pressure sensor and the measuring sensor are different, so that the acquired data are unreliable; thirdly, each water layer of the target sea area water body cannot be monitored simultaneously; fourthly, a relatively stable working environment cannot be provided for the measuring sensor which performs the monitoring operation; fifth, the system is not buoyant.
Disclosure of Invention
In order to overcome the disadvantages of the prior art, an object of the present invention is to provide a methane monitoring node device applied to an electromagnetic coupling transmission anchor system, which can solve the problems that the prior art cannot effectively monitor each water layer of a target water area in real time and the measuring device is easily interfered by ocean or weather factors.
The second objective of the present invention is to provide a methane monitoring node system applied to an electromagnetic coupling transmission anchor system, which can solve the problems that the prior art cannot simultaneously and effectively monitor each water layer of a target water area in real time and a measuring device is easily interfered by ocean or weather factors.
In order to achieve one of the above purposes, the technical scheme adopted by the invention is as follows:
the utility model provides a be applied to methane monitoring node device of electromagnetic coupling transmission anchor system, is including the floating ball body that is used for diving to float, a plurality of fixed bolster that are used for fixed floating ball body's aquatic gesture, the monitoring module that is used for monitoring the water, the data acquisition control module that is used for gathering processing monitoring data and the first inductive coupling transmitter that is used for being connected with external communication device, monitoring module and first communication module encircle to set up on the floating ball body along the circumferencial direction, data acquisition control module and floating ball body coupling, monitoring module passes through data acquisition control module and is connected with first inductive coupling transmitter, the floating ball body is connected with fixed bolster.
Preferably, the monitoring module includes the ocean current meter that is used for monitoring the ocean current characteristic, the warm salt depth appearance that is used for monitoring sea temperature salinity and pressure, the methane sensor that is used for monitoring methane concentration, ocean current meter, warm salt depth appearance, methane sensor and first communication module encircle data acquisition control module and set up, ocean current meter, warm salt depth appearance, methane sensor all are connected with data acquisition control module.
Preferably, the system also comprises a power supply module for supplying power to the methane sensor at regular time, and the methane sensor and the data acquisition control module are both connected with the power supply module.
Preferably, the floating ball body comprises a protective shell, a containing cavity is formed in the protective shell, the data acquisition control module is arranged in the containing cavity, the monitoring module is arranged outside the protective shell, and the protective shell is connected with the fixed support.
Preferably, the protective casing is made of glass beads.
In order to achieve the second purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a methane monitoring node system for electromagnetic coupling transmission anchor system which characterized in that: the monitoring mechanism comprises a plurality of methane monitoring node devices applied to the electromagnetic coupling transmission anchor system and a plastic-coated steel cable connected between the buoy monitoring mechanism and the anchor body, and the methane monitoring node devices applied to the electromagnetic coupling transmission anchor system are sequentially connected with the plastic-coated steel cable from the buoy monitoring mechanism to the anchor body;
the plastic-coated steel cable is used for communicating between a methane monitoring node device applied to an electromagnetic coupling transmission anchoring system and a buoy monitoring mechanism and providing anti-floating tension;
the buoy monitoring mechanism is used for monitoring the environmental condition of the water surface and communicating with the outside.
Preferably, the fixed bolster includes a plurality of fixed posts, the first connecting piece of being connected with the one end of fixed post and the second connecting piece of being connected with the plastic-coated steel cable, the floater is connected with first connecting piece through fixed post, first connecting piece can be dismantled with the second connecting piece and be connected.
Preferably, the number of the fixed supports is two, the fixed supports are respectively marked as an upper fixed support and a lower fixed support, one end of the floating ball body is connected with a methane monitoring node device or a buoy monitoring mechanism which is arranged above the floating ball body and is applied to the electromagnetic coupling transmission anchor system sequentially through the upper fixed support and the plastic-coated steel cable, and the other end of the floating ball body is connected with a methane monitoring node device or an anchor body which is arranged below the floating ball body and is applied to the electromagnetic coupling transmission anchor system sequentially through the lower fixed support and the plastic-coated steel cable.
Preferably, buoy monitoring mechanism including be used for to the surface of water monitoring data gather and the surface of water monitoring module of control, be used for with the package mould the second inductive coupling transmitter that the steel cable carries out communication and be used for carrying out the communication module that communicates with the external world, the package is moulded the steel cable and is connected with second inductive coupling transmitter, second inductive coupling transmitter and surface of water monitoring module all are connected with communication module.
Preferably, the methane monitoring node devices applied to the electromagnetic coupling transmission anchoring system are distributed between the buoy monitoring mechanism and the anchor body at equal intervals.
Compared with the prior art, the invention has the beneficial effects that: the methane monitoring node devices applied to the electromagnetic coupling transmission anchor system are arranged between the buoy monitoring mechanism and the anchor body to realize segmented monitoring of the target sea area, the conditions of all monitoring layers of the target water area are comprehensively known, meanwhile, the constant force provided by the anchor body and the buoyancy or pulling force between the methane monitoring node devices applied to the electromagnetic coupling transmission anchor system are utilized, so that the underwater posture of the methane monitoring node devices applied to the electromagnetic coupling transmission anchor system is fixed, the Choking resistance of the methane monitoring node devices applied to the electromagnetic coupling transmission anchor system is enhanced, the interference of ocean or weather factors on the methane monitoring node devices applied to the electromagnetic coupling transmission anchor system is reduced, and the methane monitoring node devices applied to the electromagnetic coupling transmission anchor system can be ensured to carry out long-term effective monitoring work. Through the plastic-coated steel cable transmission signal, the underwater communication setting is simplified, the accident frequency is reduced, and the buoy monitoring mechanism interacts with the outside to realize the communication between the system and the outside.
Drawings
Fig. 1 is a schematic structural diagram of a methane monitoring node system applied to an electromagnetically coupled transmission anchor system according to the present invention.
Fig. 2 is a schematic structural diagram of a methane monitoring node device applied to an electromagnetically coupled transmission anchor system according to the present invention.
Fig. 3 is a top view of a methane monitoring node arrangement as described in the present invention applied to an electromagnetically coupled transmission anchor train.
In the figure: 1-a buoy monitoring mechanism; 11-a water surface monitoring module; 12-a second inductively coupled transmitter; 13-a communication module; 2-an anchor body; 3-a monitoring mechanism; 31-a methane monitoring node device applied to an electromagnetically coupled transmission anchor system; 311-floating spheres; 312-a fixed support; 3121-a stationary support; 3122-a first connection member; 3123-a second connecting member; 3124-sacrificial anode; 313-a monitoring module; 3131-current meter; 3132-Wen salt depth instrument; 3133-a methane sensor; 3134 — a first inductively coupled transmitter; 314-data acquisition control module; 32-plastic-coated steel cable.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention will be further described with reference to the accompanying drawings and the detailed description below:
in the invention, the plastic-coated steel cable 32 is formed by coating the outer layer of the steel cable with plastic, and has better shock absorption, compression resistance and corrosion resistance than the traditional steel cable; the protective shell of the floating ball body 311 has the functions of compression resistance and corrosion resistance, the whole floating ball body is spherical, so that the flow resistance of the floating ball body is enhanced, the glass beads are processed by borosilicate raw materials, the particle size is 10-250 micrometers, and the wall thickness is 1-2 micrometers. The product has the advantages of light weight, low heat conduction, higher strength, good chemical stability and the like, the surface of the product has oleophylic and hydrophobic properties after special treatment, in the embodiment, the protective shell is made of glass beads, the basis weight of the floating ball body 311 can be greatly reduced, more production resin is replaced and saved, the product cost is reduced, the toughness of the floating ball body 311 is enhanced while the rigidity of the floating ball body 311 is not reduced through the toughness, the corrosion resistance and the insulativity of the floating ball body, and the shrinkage rate of the protective shell and the deformation of the floating ball body under water under high pressure can be effectively reduced.
As shown in fig. 1-3, a methane monitoring node system applied to an electromagnetic coupling transmission anchor system comprises a buoy monitoring mechanism 1 arranged on the water surface, an anchor body 2 arranged on the sea bottom, and a monitoring mechanism 3 arranged between the buoy monitoring mechanism 1 and the anchor body 2, wherein the monitoring mechanism 3 comprises a plurality of methane monitoring node devices 31 used for carrying out segmented monitoring and applied to the electromagnetic coupling transmission anchor system and plastic-coated steel cables 32 connected between the buoy monitoring mechanism 1 and the anchor body 2, and the methane monitoring node devices 31 applied to the electromagnetic coupling transmission anchor system are sequentially connected with the plastic-coated steel cables 32 from the buoy monitoring mechanism 1 to the anchor body 2; the plastic coated steel cable 32 is used for communication between the methane monitoring node device 31 applied to the electromagnetic coupling transmission anchoring system and the buoy monitoring mechanism 1 and providing the anti-floating tension of the system; the buoy monitoring mechanism 1 is used for monitoring the environmental condition of the water surface and communicating with the outside. Wherein the environmental conditions include surface seawater data, atmospheric data, and the like, and alerts of the vessel approaching voyage. Specifically, as shown in fig. 1, one end of the plastic-coated steel cable 32 is connected to the anchor body 2, the other end is connected to the buoy monitoring mechanism 1, and the methane monitoring node devices 31 applied to the electromagnetic coupling transmission anchor system can be distributed between the buoy monitoring mechanism 1 and the anchor body 2 at a preset interval or at equal intervals according to monitoring requirements, so that when monitoring is performed, the constant force provided by the anchor body 2 and the tension and buoyancy generated in water by the methane monitoring node devices 31 applied to the electromagnetic coupling transmission anchor system are utilized, so that the interval between the methane monitoring node devices 31 applied to the electromagnetic coupling transmission anchor system is in dynamic balance, the posture of the methane monitoring node devices 31 applied to the electromagnetic coupling transmission anchor system is relatively stable and has strong resistance, and the methane monitoring node devices 31 applied to the electromagnetic coupling transmission anchor system can continuously perform monitoring operation in a predetermined sea area, and improve the accuracy of the monitored data.
Preferably, the buoy monitoring mechanism 1 comprises a water surface monitoring module 11 for collecting and controlling water surface monitoring data, a second inductive coupling transmitter 12 for communicating with a plastic-coated steel cable 32 and a communication module 13 for communicating with the outside, the plastic-coated steel cable 32 is connected with the second inductive coupling transmitter 12, and the second inductive coupling transmitter 12 and the water surface monitoring module 11 are both connected with the communication module 13. Specifically, the first inductive coupling transmitter 3134 in the methane monitoring node device 31 applied to the electromagnetic coupling transmission anchor system converts the data inside the data acquisition control module 314 of the methane monitoring node device 31 applied to the electromagnetic coupling transmission anchor system from an electrical signal to a magnetic signal, and transmits the magnetic signal to the plastic-coated steel cable 32, according to the electromagnetic induction principle, a certain electrical signal (magnetic generated electricity) can be generated on the plastic-coated steel cable 32, the current is transmitted on the plastic-coated steel cable 32, the magnetic field of the plastic-coated steel cable 32 can be changed during the transmission, so that the second inductive coupling transmitter 12 of the buoy monitoring mechanism 1 senses the magnetic change (electromagnetic generation) generated on the plastic-coated steel cable 32, then the second inductive coupling module 12 converts the magnetic signal into an electrical signal and analyzes the electrical signal into data, and then the data is transmitted to an external data receiving place such as a satellite or a nearby ship by the communication module 13.
In this embodiment, the float monitoring mechanism 1 mainly includes: the system comprises a data acquisition controller (namely a water surface monitoring module 11), a second inductive coupling transmitter 12(S9 inductive coupling module host), an iridium communication module (namely a communication module 13, iridium Rudics) and a power supply battery pack, wherein after the system is put into use, the power supply battery pack supplies power for each module, the data acquisition controller acquires and controls water surface monitoring data, the second inductive coupling transmitter 12 acquires monitoring data which is located underwater and applied to a methane monitoring node device 31 of an electromagnetic coupling transmission anchor system through a plastic-coated steel cable 32, and then the iridium communication module transmits all the monitoring data to a destination (a research institute or a working ship) through a satellite.
Preferably, the methane monitoring node device 31 applied to the electromagnetic coupling transmission anchoring system comprises a floating ball body 311, a plurality of fixing supports 312, a monitoring module 313 and a data acquisition control module 314, wherein the monitoring module 313 is arranged on the floating ball body 311 in a surrounding manner along the circumferential direction, the data acquisition control module 314 is connected with the floating ball body 311, the monitoring module 313 is connected with the data acquisition control module 314, and the floating ball body 311 is connected with the plastic-coated steel cable 32 through the fixing supports 312. Specifically, the floating ball body 311 includes a protective casing having a containing cavity therein, the data acquisition control module 314 is disposed in the containing cavity, and the monitoring module 313 is disposed outside the protective casing. In this embodiment, the protective casing is made of glass beads, and by utilizing its hydrophobic property and low density property, the protective casing is light, that is, the casing is subjected to small gravity and large buoyancy, and has good water-resisting effect, so as to prevent the data acquisition control module 314 in the accommodating cavity from being disturbed by seawater; in addition, the data monitored by the monitoring module 313 arranged outside the protective shell is connected with the data acquisition control module 314 in the accommodating cavity through an RS232 interface; preferably, the fixed bracket 312 includes a plurality of fixed support columns 3121, a first connecting member 3122 connected to one end of the fixed support columns 3121, and a second connecting member 3123 connected to the plastic coated steel cable 32, the buoyant sphere 311 is connected to the first connecting member 3122 through the fixed support columns 3121, and the first connecting member 3122 is detachably connected to the second connecting member 3123. In this embodiment, as shown in fig. 2 to 3, the number of the fixed pillars 3121 is 4, the other ends of the 4 fixed pillars 3121 are circumferentially arranged around the floating ball 311, preferably, the 4 fixed pillars 3121 are distributed at equal intervals, and a reinforcing rib type structure is arranged between the fixed pillars 3121 so as to form a stable structure between the fixed pillars 3121, and one end of the fixed pillars 3121 is connected to the first connecting member 3122, wherein the first connecting member 3122 and the second connecting member 3123 are both shackle nuts, and the fixed pillars 3121 and the first connecting member 3122 may be one member or two separate members connected together by welding or bolts. Preferably, the fixed support 3121 and the first connecting member 3122 are provided with a sacrificial anode 3124, the sacrificial anode 3124 is made of a metal with relatively active chemical properties, such as metal zinc, corrosion of the sacrificial anode 3124 provides protection for the fixed support 312, that is, the sacrificial anode 3124 is preferentially dissociated, so as to inhibit corrosion of the fixed support 312, and prevent the fixed support 312 from being corroded by seawater during the monitoring process, which may cause the methane monitoring node apparatus 31 applied to the electromagnetic coupling transmission anchor system to fall off.
As shown in fig. 2, preferably, the number of the fixing brackets 312 is two, which are respectively marked as an upper fixing bracket and a lower fixing bracket, one end of the floating ball 311 is connected with the floating ball 311 or the buoy monitoring mechanism 1 above the floating ball through the upper fixing bracket and the plastic-coated steel cable 32 in sequence, and the other end of the floating ball 311 is connected with the floating ball 311 or the anchor body 2 below the floating ball through the lower fixing bracket and the plastic-coated steel cable 32 in sequence, so that the floating ball 311 is axially fixed, and the posture and the current resistance of the methane monitoring node system applied to the electromagnetic coupling transmission anchor system in water are ensured, thereby ensuring the normal development of the monitoring operation.
Preferably, the monitoring module 313 includes, but is not limited to, a sea current meter 3131 for monitoring sea current, a thermowell gauge 3132 for monitoring sea water temperature salinity and pressure, and a methane sensor 3133 for monitoring methane concentration, the first communication module includes a first inductive coupling transmitter 3134 for communicating with the plastic coated steel cable 32, the sea current meter 3131, the thermowell gauge 3132, the methane sensor 3133, and the first inductive coupling transmitter 3134 are disposed around the data acquisition control module 314, the sea current meter 3131, the thermowell gauge 3132, the methane sensor 3133 are all connected with the data acquisition control module 314, the data acquisition control module 314 is connected with the plastic coated steel cable 32 through the first inductive coupling transmitter 3134, that is, the data acquisition control module 314 transmits signals onto the plastic coated steel cable 32 through the first inductive coupling transmitter 3134. Specifically, the data collection control module 314 is disposed on an axis between the upper and lower fixed supports, the current meter 3131, the thermohaline gauge 3132, the methane sensor 3133 and the first inductive coupling transmitter 3134 are disposed around the data collection control module 314, and the arcs between any adjacent two of the current meter 3131, the thermohaline gauge 3132, the methane sensor 3133 and the first inductive coupling transmitter 3134 are equal, thereby reducing the wiring length, preventing the methane monitoring node device 31 applied to the electromagnetically coupled transmission anchor system from being short-circuited, open-circuited, etc. in the deep sea, and simultaneously reducing the loss and distortion probability of the monitoring data during transmission, and uniformly distributing the current meter 3131, the thermohaline gauge 3132, the methane sensor 3133 and the first inductive coupling transmitter 3134 to uniformly distribute the weight of the entire methane monitoring node device 31 applied to the electromagnetically coupled transmission anchor system, it is advantageous to define the underwater attitude of the methane monitoring node arrangement 31 applied to the electromagnetically coupled transmission mooring and to make full use of the spatial capacity of the buoyant spheres 311.
Further, the current meter 3131, the thermowell 3132, the methane sensor 3133 and the data acquisition control module 314 are all powered by batteries, wherein the data acquisition control module 314 is powered by a power supply module (external battery compartment), the current meter 3131 and the thermowell 3132 are self-powered by their own batteries, the methane sensor 3133 is powered by the data acquisition control module 314, and the data acquisition control module 314 controls the methane sensor 3133 to be in one of the states between on and off. After the methane sensor is put into use, the data acquisition control module 314 can be set to control the methane sensor 3133 to be powered on and started at a certain time (for example, the initial time 00:00), a group of methane data (not sent) is stored at intervals (for example, 1min), and 5 groups of methane data (06:25-06:30), 1 group of temperature and salt depth data (06:25) and 1 group of single-point ocean current data (06:25) at the end of the working period are taken and packed and transmitted back together until a period of time (for example, 06:30) arrives. Namely, the methane sensor 3133 is powered on and works for 6.5 hours every day, 5 groups of methane, 1 group of temperature and salt depth data and 1 group of single-point ocean current data are returned by the system at the end of work every day, and the rest data are stored internally. The data acquisition control module 314 mainly controls the on/off of the methane sensor 3133, saves electric quantity by controlling the working time of the methane sensor 3133, and effectively prolongs the monitoring time of the whole system under water; in addition, the thermohaline single-point current meter is self-provided with a battery for power supply and can set an operating mode in advance, so that power on-off control is not considered temporarily. Further, the data acquisition control module 314 is further configured to control the first inductive coupling transmitter 3134 to be powered on or powered off, in this embodiment, the buoy monitoring mechanism 1 is equivalent to a master, and the methane monitoring node device 31 applied to the electromagnetic coupling transmission anchor system is equivalent to a slave, and the specific working process is as follows: 06:29, starting up the first inductive coupling transmitter 3134 in the slave to open an inductive coupling communication window; 06:30, the second inductive coupling transmitter 12 in the host is powered on and started, the first inductive coupling transmitter 3134 and the second inductive coupling transmitter 12 start to perform interactive communication, 06:50, the data transmission is completed, the inductive coupling communication window is closed and the power is cut off, and at this time, the data transmitted from the slave is stored in the host. Then, an iridium satellite transmission working window is opened, an iridium satellite communication module of the host is powered on and starts to transmit data to the satellite, and 07: and 00, completing data transmission, closing an iridium communication transmission window and powering off, and further saving electric quantity.
In this embodiment, the methane monitoring node system applied to the electromagnetic coupling transmission anchor system is thrown into a designated water area, the anchor body 2 sinks to the sea bottom under the action of gravity, the floating ball body 311 of the methane monitoring node device 31 applied to the electromagnetic coupling transmission anchor system is submerged under the action of the buoyancy of sea water, the buoy monitoring mechanism 1 floats on the water surface, in the process, as shown in fig. 1, the anchor body 2 provides constant force to the methane monitoring node device 31 applied to the electromagnetic coupling transmission anchor system and the buoy monitoring mechanism 1 to resist the impact of water flow, so as to be fixed in the monitored water area, the methane monitoring node device 31 applied to the electromagnetic coupling transmission anchor system in the system is distributed on the plastic coated steel cable 32 along the plastic coated steel cable 32 between the anchor body 2 and the buoy monitoring mechanism 1 according to a predetermined distance, wherein the distance between the methane monitoring node devices 31 applied to the electromagnetic coupling transmission anchor system can be set according to parameters such as the distance between monitoring layers required actually, so that the methane monitoring node system applied to the electromagnetic coupling transmission anchor system can monitor each monitoring layer of a target water area, in the monitoring process, the floating ball body 311 keeps a relatively stable posture under the action of the upper fixing support and the lower fixing support at the upper end and the lower end of the floating ball body, so that the monitoring module 313 can monitor in a relatively stable environment, specifically, the current meter 3131 obtains the water flow condition of the monitoring layer where the floating ball body is located, the thermohaline depth gauge 3132 obtains the water temperature, salinity and depth of the monitoring layer where the floating ball body is located, the methane sensor 3133 obtains the methane content of the monitoring layer where the floating ball body is located, so that a worker can judge the hydrate content of the monitoring layer in the external environment by combining the water flow, the water temperature, the salinity, the depth and the methane content, further, each methane monitoring node device 31 applied to the electromagnetic coupling transmission anchor system can monitor one observation layer respectively, the staff can comprehensively acquire the real data of each observation layer through a methane monitoring node system applied to the electromagnetic coupling transmission anchor system and composed of a plurality of methane monitoring node devices 31 applied to the electromagnetic coupling transmission anchor system, and can simulate a three-dimensional comprehensive model related to the water body methane content of the water body according to the acquired data, thereby accurately judging the submarine methane leakage, dissolution and migration diffusion conditions of the target water body.
When the data collected by the current meter 3131, the thermohaline depth gauge 3132 and the methane sensor 3133 in the monitoring module 313 are processed by the data collection control module 314 and then transmitted to the first inductive coupling transmitter 3134 in the monitoring module 313, the first inductive coupling transmitter 3134 converts the obtained electrical signal into a magnetic signal and transmits the magnetic signal to the plastic-coated steel cable 32, according to the electromagnetic induction (magnetoelectrical) principle, a weak electrical signal is generated on the plastic-coated steel cable 32, the second inductive coupling transmitter 12 of the buoy monitoring mechanism 1 senses the weak magnetic change (electromagnetic principle) generated by each methane monitoring node device 31 applied to the electromagnetic coupling transmission anchoring system on the plastic-coated steel cable 32, and then the second inductive coupling module converts the magnetic signal into an electrical signal and further analyzes the electrical signal into data, and then the data is transmitted to the outside by the communication module 13, thereby realizing underwater communication without a communication cable, the purposes of simplifying system components and reducing accident occurrence probability are achieved.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a be applied to methane monitoring node means of electromagnetic coupling transmission anchor system which characterized in that: including the floating ball body that is used for diving to float, a plurality of fixed bolster that are used for fixed floating ball body's aquatic gesture, the monitoring module that is used for monitoring the water, the data acquisition control module that is used for gathering processing monitoring data and the first inductive coupling transmitter that is used for being connected with external communication device, monitoring module and first inductive coupling transmitter encircle to set up on the floating ball body along the circumferencial direction, data acquisition control module and floating ball body coupling, monitoring module passes through data acquisition control module and is connected with first inductive coupling transmitter, the floating ball body is connected with fixed bolster.
2. The methane monitoring node apparatus for use with an electromagnetically coupled transmission anchor train as claimed in claim 1, wherein: the monitoring module includes the ocean current meter that is used for monitoring the ocean current, the temperature and salinity depth appearance that is used for monitoring sea temperature salinity and pressure, the methane sensor that is used for monitoring methane concentration, ocean current meter, temperature and salinity depth appearance, methane sensor and first inductive coupling transmitter encircle data acquisition control module and set up, ocean current meter, temperature and salinity depth appearance, methane sensor all are connected with data acquisition control module.
3. The methane monitoring node apparatus applied to an electromagnetically coupled transmission anchor system as claimed in claim 2, wherein: the methane sensor and the data acquisition control module are connected with the power supply module.
4. The methane monitoring node apparatus for use with an electromagnetically coupled transmission anchor train as claimed in claim 1, wherein: the floating ball body comprises a protective shell, a containing cavity is formed in the protective shell, the data acquisition control module is arranged in the containing cavity, the monitoring module is arranged outside the protective shell, and the protective shell is connected with the fixed support.
5. The methane monitoring node apparatus applied to an electromagnetically coupled transmission anchor system as claimed in claim 4, wherein: the protective housing is made of glass beads.
6. The utility model provides a methane monitoring node system for electromagnetic coupling transmission anchor system which characterized in that: the monitoring mechanism comprises a plurality of methane monitoring node devices applied to the electromagnetic coupling transmission anchor system according to any one of claims 1 to 5 and a plastic-coated steel cable connected between the buoy monitoring mechanism and the anchor body, wherein the methane monitoring node devices applied to the electromagnetic coupling transmission anchor system are sequentially connected with the plastic-coated steel cable from the buoy monitoring mechanism to the anchor body;
the plastic-coated steel cable is used for communicating between a methane monitoring node device applied to an electromagnetic coupling transmission anchoring system and a buoy monitoring mechanism and providing the anti-floating tension of the system;
the buoy monitoring mechanism is used for monitoring the environmental condition of the water surface and communicating with the outside.
7. The methane monitoring node system applied to an electromagnetically coupled transmission anchor system as claimed in claim 6, wherein: the fixed bolster includes a plurality of fixed posts, the first connecting piece of being connected with the one end of fixed post and the second connecting piece of being connected with the plastic-coated steel cable, the floater is connected with first connecting piece through fixed post, first connecting piece can be dismantled with the second connecting piece and be connected.
8. The methane monitoring node system applied to an electromagnetically coupled transmission anchor system as claimed in claim 6, wherein: the number of the fixed supports is two, the fixed supports are respectively marked as an upper fixed support and a lower fixed support, one end of the floating ball body is connected with a methane monitoring node device or a buoy monitoring mechanism which is arranged above the floating ball body and is applied to the electromagnetic coupling transmission anchor system in sequence through the upper fixed support and the plastic-coated steel cable, and the other end of the floating ball body is connected with the methane monitoring node device or the anchor body which is arranged below the floating ball body and is applied to the electromagnetic coupling transmission anchor system in sequence through the lower fixed support and the plastic-coated steel cable.
9. The methane monitoring node system applied to an electromagnetically coupled transmission anchor system as claimed in claim 6, wherein: buoy monitoring mechanism including be used for to the surface of water monitoring data gather and the surface of water monitoring module of control, be used for with the package mould the second inductive coupling transmitter that the steel cable carries out communication and be used for carrying out the communication module that communicates with the external world, the package moulds the steel cable and is connected with second inductive coupling transmitter, second inductive coupling transmitter and surface of water monitoring module all are connected with communication module.
10. The methane monitoring node system applied to an electromagnetically coupled transmission anchor system as claimed in claim 6, wherein: the methane monitoring node devices applied to the electromagnetic coupling transmission anchor system are distributed between the buoy monitoring mechanism and the anchor body at equal intervals.
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