CN105355010A - Submarine pipeline detection information real-time transmission system - Google Patents
Submarine pipeline detection information real-time transmission system Download PDFInfo
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- CN105355010A CN105355010A CN201510727028.XA CN201510727028A CN105355010A CN 105355010 A CN105355010 A CN 105355010A CN 201510727028 A CN201510727028 A CN 201510727028A CN 105355010 A CN105355010 A CN 105355010A
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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Abstract
The invention relates to a submarine pipeline detection information real-time transmission system. The system comprises a submarine pipeline fixed node subsystem, a buoy node subsystem and a ship monitoring subsystem, and each of submarine pipeline fixed nodes comprises a sensor interface unit, a first compass module, a first DSP signal processing unit, a first signal emitting and conditioning unit and a first vector energy transducer; each of buoy nodes comprises a second vector energy transducer, a second signal emitting and conditioning unit, a second signal receiving and conditioning unit, a second compass module and a second DSP signal processing unit; the ship monitoring subsystem comprises a third vector energy transducer, a third signal receiving and conditioning unit, a third DSP signal processing unit and a PC machine; and information can be mutually sent and received from and by the second vector energy transducer and the first energy transducer, and information can be mutually sent and received from and by the second vector energy transducer and the third energy transducer.
Description
Technical field
The present invention relates to marine surveys technical field, particularly relate to a kind of subsea pipeline infomation detection RTTS.
Background technology
Along with the exploitation of China's Marine oil and gas resource, around China's Marine oil and gas resource exploitation, the subsea pipeline quantity of Large scale construction constantly rises, be increased to present more than 6000 kilometer from 1999 more than 2000 kilometer, define crisscross benthal oil-gas pipeline net between each drilling platform and between drilling platform and inland industry base, these benthal oil-gas pipeline nets have become the important lifeline engineering that the China's national defense modernization of industry is built.But due to severe environments such as subsea, make subsea pipeline because fatigue effect, material corrosion are aging and the destruction of the many factors such as submarine geology change, usually because of damage accumulation generation the pipeline leakage even severe accident of line break, cause huge economic loss and serious marine eco-environment destruction.Subsea pipeline real time on-line monitoring, and then realize the healthy and safe real-time online assessment of pipeline, be technical matters urgently to be resolved hurrily.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of subsea pipeline Detection Information RTTS, the result that subsea pipeline Sensor monitoring can be arrived, and by underwater communication network system real-time Transmission to Ship Monitoring System, realizes the real time on-line monitoring of subsea pipeline.
Realize the technical scheme of the object of the invention:
A kind of subsea pipeline infomation detection RTTS, subsea pipeline is provided with sensor, it is characterized in that: comprise subsea pipeline stationary nodes subsystem, buoy node subsystem, Ship monitoring and control subsystem,
In subsea pipeline stationary nodes subsystem, each subsea pipeline stationary nodes has sensor interface unit, the first compass module, a DSP signal processing unit, the first signal transmitting conditioning unit and the first vector transducer, sensor interface unit output terminal, the first compass module export termination the one DSP signal processing unit, one DSP signal processing unit exports termination first signal and launches conditioning unit, and the first signal is launched conditioning unit and exported termination first vector transducer;
In buoy node subsystem, each buoy node has the second vector transducer, secondary signal launches conditioning unit, secondary signal receives conditioning unit, the second compass module and the 2nd DSP signal processing unit, second vector transducer launches conditioning unit output terminal with secondary signal respectively, secondary signal receives conditioning unit input end and is connected, secondary signal launches conditioning unit input end, secondary signal receives conditioning unit output terminal and is connected with the 2nd DSP signal processing unit, and the second compass module exports termination the 2nd DSP signal processing unit;
Ship monitoring and control subsystem has the 3rd vector transducer, the 3rd Signal reception conditioning unit, the 3rd DSP signal processing unit and PC, 3rd vector transducer connects the 3rd Signal reception conditioning unit input end, 3rd Signal reception conditioning unit exports termination the 3rd DSP signal processing unit, and the 3rd DSP signal processing unit connects PC through interface circuit;
Can sent-received message mutually between second vector transducer and the first vector transducer, can sent-received message mutually between the second vector transducer and the 3rd vector transducer.
The circuit structure that first signal launches conditioning unit and secondary signal transmitting conditioning unit is connected to form successively by D/A change-over circuit, voltage follower circuit, emissive power dispensable circuit, power amplification circuit, impedance matching circuit.
Secondary signal receives conditioning unit, the circuit structure of the 3rd Signal reception conditioning unit is connected to form successively by low noise amplifier circuit, band pass filter circuit, voltage one-level amplifying circuit, AGC automatic gain control circuit, A/D change-over circuit.
Subsea pipeline stationary nodes subsystem also has attended circuit, and attended circuit input termination sensor interface unit, attended circuit, according to the signal of sensor interface unit, controls a DSP signal processing unit and enters duty or dormant state.
First signal launches conditioning unit and the secondary signal power amplification circuit launched in conditioning unit adopts D class power amplifier.
First signal launches conditioning unit and the secondary signal emissive power dispensable circuit launched in conditioning unit adopts the fully integrated solid-state potentiometer of four resistance passages.
The low noise amplifier circuit structure that secondary signal receives in conditioning unit, the 3rd Signal reception conditioning unit is, the nonpolar electric capacity of the input termination the 3rd (C3) of low noise amplification chip (U1), the nonpolar electric capacity of the output termination the 4th (C4) of low noise amplification chip (U1), low noise amplification chip (U1) connects power supply through filtering circuit.
Can sent-received message mutually between second vector transducer and the first vector transducer, can sent-received message mutually between the second vector transducer and the 3rd vector transducer.
The beneficial effect that the present invention has:
Patent of the present invention provides a kind of subsea pipeline Detection Information RTTS, comprise subsea pipeline stationary nodes, buoy node, Ship monitoring and control three subsystems, there is the advantage of miniaturization, systematization, low-power consumption, real-time, the result that subsea pipeline Sensor monitoring can be arrived to Ship Monitoring System, realizes the real time on-line monitoring of subsea pipeline by underwater communication network system real-time Transmission.The present invention effectively can reduce testing cost; realize full range, three-dimensional, the networking on-line real time monitoring to subsea pipeline; contribute to improving further subsea pipeline serviceable life; effectively avoid because benthal oil-gas pipeline damages the economic loss that causes to oil company even to the destruction of ecologic environment; to Marine oil and gas resource safety in production exploitation and marine eco-environment protection, there is profound significance; simultaneously; in the face of the subsea pipeline network that quantity rises year by year, subsea pipeline real-time monitoring system has considerable market outlook.
Receiving end of the present invention and secondary signal receive in conditioning unit, the 3rd Signal reception conditioning unit, are provided with low noise amplifier circuit, by the front end analogue signal low noise amplification received, effectively can reduce the interference of underwater acoustic channel strong noise to result of communication.
Emissive power dispensable circuit is provided with in transmitting terminal of the present invention i.e. the first signal transmitting conditioning unit and secondary signal transmitting conditioning unit; and emissive power dispensable circuit adopts the fully integrated solid-state potentiometer of four resistance passages; make power amplification circuit can realize Power Limitation and direct current monitoring and protecting; Power Limitation refers to the peak power that limiting power amplifier exports; avoid vector transducer to be damage exceeding rated power, direct current monitoring and protecting refers to the lasting output DC voltage that can prevent input capacitance short circuit from producing and causes described vector transducer to burn.
The present invention first signal launches conditioning unit and secondary signal is launched in conditioning unit, and adopt D class power amplifier power amplification circuit, subsea pipeline stationary nodes subsystem of the present invention is provided with attended circuit, all effectively can reduce system power dissipation.Wherein, according to whether receiving sensor wake-up signal, attended circuit can determine that described DSP signal processing unit enters duty or dormant state, increase the systems stay working time, guarantee subsea pipeline real-time monitoring system safe and reliable operation.
The present invention first vector transducer, the second vector transducer, the 3rd vector transducer all adopt pipe form, the oil-filled shielding protection cover of peripheral hardware, can effective extension device serviceable life, ensure functional reliability.
Accompanying drawing explanation
Fig. 1 is subsea pipeline stationary nodes subsystem diagram of the present invention;
Fig. 2 is buoy node subsystem block diagram of the present invention;
Fig. 3 is Ship monitoring and control subsystem diagram of the present invention;
Fig. 4 is the circuit block diagram that the present invention first signal launches conditioning unit and secondary signal transmitting conditioning unit;
Fig. 5 is the circuit block diagram that secondary signal of the present invention receives conditioning unit, the 3rd Signal reception conditioning unit;
Fig. 6 is the low noise amplifier circuit schematic diagram that the present invention receives in conditioning unit.
Embodiment
The invention provides a kind of subsea pipeline Detection Information RTTS, comprise subsea pipeline stationary nodes subsystem, buoy node subsystem, Ship monitoring and control subsystem.
Subsea pipeline stationary nodes subsystem, mainly realizes the collection of subsea pipeline waveform sensor data and underwater sound Wave data file and uploads the Wave data information of collection.As shown in Figure 1, each subsea pipeline fixed knot idea has sensor interface unit, the first compass module, a DSP signal processing unit, the first signal transmitting conditioning unit and the first vector transducer, sensor interface unit output terminal, the first compass module export termination the one DSP signal processing unit, one DSP signal processing unit exports termination first signal and launches conditioning unit, and the first signal is launched conditioning unit and exported termination first vector transducer.Sensor interface unit, as described subsea pipeline stationary nodes subsystem input end, provides and monitors sensor interface used with subsea pipeline, comprises IIC, UART, SPI tri-kinds of interface circuits, for being connected and installed in the sensor on subsea pipeline.First compass module provides this node attitude orientation information, and the attitude orientation information collected connects a DSP signal processing unit by IIC communications protocol.One DSP signal processing unit adopt low-power consumption, at a high speed, high performance DSP, the signal completed subsea pipeline monitoring sensor collects processes and stores, and in described dsp chip settling signal synchronous, Multiple Channel Analysis, channel equalization and the digital signal modulated before result is sent.Dsp chip adopts model to be TMS320C2834x.First vector transducer adopts transmitting-receiving conjunction to put form, is realized the conversion of transmitting and receiving function by transmitting-receiving change-over circuit.Subsea pipeline stationary nodes subsystem also has attended circuit, and attended circuit input termination sensor interface unit, attended circuit, according to the signal of sensor interface unit, controls a DSP signal processing unit and enters duty or dormant state.
As shown in Figure 4, the first signal transmitting conditioning unit is connected to form successively by D/A change-over circuit, voltage follower circuit, emissive power dispensable circuit, power amplification circuit, impedance matching circuit.Impedance matching circuit exports termination first vector transducer, D/A change-over circuit input termination the one DSP signal processing unit.Said power amplification circuit adopts D class power amplifier, and category D amplifier chip model is TPA3112 model.Said emissive power dispensable circuit adopts the fully integrated solid-state potentiometer MAX5160 of four resistance passages to regulate emissive power, said D/A change-over circuit reference voltage is benchmark, realize rear firing emission power from 0 to 100% accurate smooth adjustment, thus make power amplification circuit have Power Limitation and direct current monitoring and protecting function, Power Limitation can limiting power amplifier export peak power, described vector transducer is avoided to be damage exceeding rated power, the lasting output DC voltage that direct current monitoring and protecting function can prevent input capacitance short circuit from producing and cause described vector transducer to burn.
Buoy node subsystem, the data transparency that pipeline stationary nodes is transferred to buoy node by primary responsibility is forwarded to other buoy nodes and Ship monitoring and control subsystem, simultaneously, the data message of Ship monitoring and control and other buoy nodes and answer signal can be transparently forwarded to other buoy nodes and pipeline stationary nodes, serve as the intermediary node in communication system.As shown in Figure 2, each buoy node has the second vector transducer, secondary signal launches conditioning unit, secondary signal receives conditioning unit, the second compass module and the 2nd DSP signal processing unit, second vector transducer launches conditioning unit output terminal with secondary signal respectively, secondary signal receives conditioning unit input end and is connected, secondary signal launches conditioning unit input end, secondary signal receives conditioning unit output terminal and is connected with the 2nd DSP signal processing unit, and the second compass module exports termination the 2nd DSP signal processing unit.
As shown in Figure 5, secondary signal receives conditioning unit circuit structure is connected to form successively by low noise amplifier circuit, band pass filter circuit, voltage one-level amplifying circuit, AGC automatic gain control circuit, A/D change-over circuit.Low noise amplifier circuit input termination second vector transducer, A/D change-over circuit exports termination the 2nd DSP signal processing unit.Said low noise amplifier circuit is used for filtering noise interference, as shown in Figure 6, circuit concrete structure is, the nonpolar electric capacity C3 of input termination the 3rd of low noise amplification chip U1, the nonpolar electric capacity C4 of output termination the 4th of low noise amplification chip U1, low noise amplification chip U1 connects power supply through filtering circuit, and low noise amplification chip U1 adopts model to be MAX2650.Said band pass filter circuit is fourth-order band-pass wave filter, and the Received signal strength be responsible for low noise amplifier circuit exports carries out filtering process, and reduce out-of-band noise interference, band pass filter circuit adopts operational amplifier model to be MAX262.Said AGC automatic gain control circuit 13 adopts operation amplifier chip model to be AD603AQ, and described AGC gain automatic control circuit is responsible for process amplification, filtered signal to carry out " normalization " process.
Ship monitoring and control subsystem, the data gathered from pipeline stationary nodes and buoy node are passed through RS232 Serial Port Transmission to PC by primary responsibility, PC realizes assessing subsea pipeline security real-time online to data analysis, and make corresponding emergency processing, simultaneously, also the instruction and data information that PC sets can be sent to stationary nodes and buoy node, be responsible for managing the control command of subsea pipeline Detection Information RTTS, the broadcasting of Wave data and reception.
As shown in Figure 3, Ship monitoring and control subsystem has the 3rd vector transducer, the 3rd Signal reception conditioning unit, the 3rd DSP signal processing unit and PC, 3rd vector transducer connects the 3rd Signal reception conditioning unit input end, 3rd Signal reception conditioning unit exports termination the 3rd DSP signal processing unit, and the 3rd DSP signal processing unit connects PC through interface circuit.RS232 interface circuit selected by said interface circuit.Said PC can select ordinary desktop computer or notebook computer.
In subsea pipeline stationary nodes subsystem, buoy node subsystem, Ship monitoring and control subsystem, can sent-received message mutually between second vector transducer and the first vector transducer, can sent-received message mutually between the second vector transducer and the 3rd vector transducer.First vector transducer, the second vector transducer, the 3rd vector transducer all adopt pipe form, the oil-filled shielding protection cover of peripheral hardware.Each subsystem is all powered by a power module, and the chargeable lithium cell group of power module to be one piece of capacity be 20Ah, has positive and negative 24V, positive and negative 12V dual output interface.In subsea pipeline stationary nodes subsystem, buoy node subsystem, Ship monitoring and control subsystem, it is identical with the circuit structure that secondary signal launches conditioning unit that first signal launches conditioning unit, and the circuit structure of secondary signal reception conditioning unit, the 3rd Signal reception conditioning unit is identical.
During work, in subsea pipeline stationary nodes subsystem, the sensor signal of a DSP signal processing unit to input is modulated, and modulation signal is launched after conditioning unit process through the first signal, launches through the first vector transducer.In buoy node subsystem, the signal that second vector receive MUT first vector transducer is launched, this signal receives input the 2nd DSP signal processing unit after conditioning unit process through secondary signal, the signal of 2nd DSP signal processing unit to input is modulated, modulation signal is launched after conditioning unit process through secondary signal, launches through the second vector transducer.In Ship monitoring and control subsystem, the signal that the 3rd vector receive MUT second vector transducer is launched, this signal, after the 3rd Signal reception conditioning unit process, is sent to upper PC through interface circuit.
The main performance index of subsea pipeline Detection Information RTTS of the present invention is as follows:
Communication distance: vertical >=300m, level >=5km
Traffic rate: >240bps
RS232 transfer rate: 9600bps/1920bps is optional
The bit error rate: <10
-5
Maximum transmission power: 30W
Minimal detectable power: 150mW
Frequency of operation: 8kHz ~ 16kHz
AGC gain range of control :-40dB ~ 40dB
Receiving sensitivity: 22uV.
Claims (8)
1. a subsea pipeline infomation detection RTTS, subsea pipeline is provided with sensor, it is characterized in that: comprise subsea pipeline stationary nodes subsystem, buoy node subsystem, Ship monitoring and control subsystem,
In subsea pipeline stationary nodes subsystem, each subsea pipeline stationary nodes has sensor interface unit, the first compass module, a DSP signal processing unit, the first signal transmitting conditioning unit and the first vector transducer, sensor interface unit output terminal, the first compass module export termination the one DSP signal processing unit, one DSP signal processing unit exports termination first signal and launches conditioning unit, and the first signal is launched conditioning unit and exported termination first vector transducer;
In buoy node subsystem, each buoy node has the second vector transducer, secondary signal launches conditioning unit, secondary signal receives conditioning unit, the second compass module and the 2nd DSP signal processing unit, second vector transducer launches conditioning unit output terminal with secondary signal respectively, secondary signal receives conditioning unit input end and is connected, secondary signal launches conditioning unit input end, secondary signal receives conditioning unit output terminal and is connected with the 2nd DSP signal processing unit, and the second compass module exports termination the 2nd DSP signal processing unit;
Ship monitoring and control subsystem has the 3rd vector transducer, the 3rd Signal reception conditioning unit, the 3rd DSP signal processing unit and PC, 3rd vector transducer connects the 3rd Signal reception conditioning unit input end, 3rd Signal reception conditioning unit exports termination the 3rd DSP signal processing unit, and the 3rd DSP signal processing unit connects PC through interface circuit;
Can sent-received message mutually between second vector transducer and the first vector transducer, can sent-received message mutually between the second vector transducer and the 3rd vector transducer.
2. according to the subsea pipeline infomation detection RTTS described in claim 1, it is characterized in that: the circuit structure that the first signal launches conditioning unit and secondary signal transmitting conditioning unit is connected to form successively by D/A change-over circuit, voltage follower circuit, emissive power dispensable circuit, power amplification circuit, impedance matching circuit.
3. subsea pipeline infomation detection RTTS according to claim 2, it is characterized in that: secondary signal receives conditioning unit, the circuit structure of the 3rd Signal reception conditioning unit is connected to form successively by low noise amplifier circuit, band pass filter circuit, voltage one-level amplifying circuit, AGC automatic gain control circuit, A/D change-over circuit.
4. subsea pipeline infomation detection RTTS according to claim 3, it is characterized in that: subsea pipeline stationary nodes subsystem also has attended circuit, attended circuit input termination sensor interface unit, attended circuit, according to the signal of sensor interface unit, controls a DSP signal processing unit and enters duty or dormant state.
5. subsea pipeline infomation detection RTTS according to claim 4, is characterized in that: the first signal launches conditioning unit and the secondary signal power amplification circuit launched in conditioning unit adopts D class power amplifier.
6. subsea pipeline infomation detection RTTS according to claim 5, is characterized in that: the first signal launches conditioning unit and the secondary signal emissive power dispensable circuit launched in conditioning unit adopts the fully integrated solid-state potentiometer of four resistance passages.
7. subsea pipeline infomation detection RTTS according to claim 6, it is characterized in that: the low noise amplifier circuit structure that secondary signal receives in conditioning unit, the 3rd Signal reception conditioning unit is, the nonpolar electric capacity of the input termination the 3rd (C3) of low noise amplification chip (U1), the nonpolar electric capacity of the output termination the 4th (C4) of low noise amplification chip (U1), low noise amplification chip (U1) connects power supply through filtering circuit.
8. subsea pipeline infomation detection RTTS according to claim 7, is characterized in that: the first vector transducer, the second vector transducer, the 3rd vector transducer all adopt pipe form, the oil-filled shielding protection cover of peripheral hardware.
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| CN201510727028.XA CN105355010B (en) | 2015-10-30 | 2015-10-30 | A kind of submerged pipeline detection information real-time transmission system |
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| CN201510727028.XA CN105355010B (en) | 2015-10-30 | 2015-10-30 | A kind of submerged pipeline detection information real-time transmission system |
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