CN201681073U - Real-time monitoring device of hypoxia phenomenon at offshore ocean bottom layer - Google Patents
Real-time monitoring device of hypoxia phenomenon at offshore ocean bottom layer Download PDFInfo
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Abstract
The utility model relates to a real-time monitoring device of the hypoxia phenomenon at an offshore ocean bottom layer. The device comprises a water quality monitoring substation, a water quality monitoring control main station, an underwater acoustic communication and 232 serial port communication substation and a battery pack, wherein the water quality monitoring substation comprises digital quantity and analog quantity sensor integrated modules, the water quality monitoring control main station comprises a data processor and an external storage module, and the underwater acoustic communication and 232 serial port communication substation comprises a seabed underwater acoustic communication machine integrated module, a sea surface underwater acoustic communication machine and a 232 serial port communication module; and the data processor is connected with the digital quantity sensor integrated module, the analog quantity sensor integrated module, the external storage module and the seabed underwater acoustic communication machine integrated module through a field transmission bus, the data processor is connected with the 232 serial port communication module through a 232 bus, and the battery pack is connected with the water quality monitoring control main station. The real-time monitoring device has the advantages of safe and convenient use, low power consumption, strong anti-interference property, good expansibility, accurate and safe real-time monitored data and the like.
Description
Technical field
The utility model relates to a kind of marine monitoring device, and particularly a kind of offshore ocean floor hypoxia phenomenon real-time monitoring device is mainly used in real time, monitors exactly coastal ocean bottom and the closely related water quality parameter data of anoxia phenomenon etc.
Background technology
The water hypoxia phenomenon of ocean bottom seawater dissolved oxygen content value≤2mg/L has become one of the main ecology in the whole world and environmental problem.The coastal waters is estuary region particularly, a large amount of nutritive salt and organic input cause red tide on the one hand easily, consumed time bottom dissolved oxygen of seawater on the other hand fast, its concentration reduces the back gradually and forms " hypoxemia district ", serious formation " oxygen-starved area ", be otherwise known as in " dead district ", not only fish, shrimp and shellfish can't be in these zone survivals, even sea grass also is difficult to survive.According to UNEP's statistics, since the seventies, the quantity and the area in ocean " dead district " are all enlarging, and the estimation whole world had 149 " dead districts " in 2004, and by 2006, this numeral rose to 200, increased nearly 30% in 2 years.For this reason, environment is deployed on appealed the whole world coastal state pollution from land-based sources of must taking measures to control on October 19th, 2006, to check the impetus that " dead district " increases.Entrance of Changjiang River of China and the mouth of the Zhujiang River are just at the row of newly-increased list.So, press for the effective monitoring means of development, so that we take effective prophylactico-therapeutic measures on the basis of understanding the anoxia phenomenon genesis mechanism at anoxia phenomenon.
Oceanographic buoy monitoring is the metering system that in the world now efficient real time obtains data, and the preferred option that real time remote marine monitoring device becomes oceanographic survey is more and more set up in the fast development of mechanicss of communication such as satellite, radio, mobile phone.But before Monitoring Data is sent to land from ocean surface, at first need data are transferred to the sea from underwater real-time, the real-time monitoring in existing coastal waters mainly concentrates on seawater at the middle and upper levels, to lower floor particularly the real-time monitored of bottom seldom relate to, the one, because in the buoy monitoring device of routine, generally all adopt the cloth payout that the data of survey sensor collection are transferred to the water surface from the bottom, under such working method, thereby cable twines easily, pulls and occurs damaging, be to be absolutely unsafe in the ocean, also can't move for a long time; The 2nd, because marine monitoring device bottom monitoring device particularly, it lays, operation and cost recovery are very high, and can't obtain sun power, and seriously limited by battery capacity its working time.So up to now, no matter be in the world or the existing marine environmental monitoring net of China, all fail generally this serious ecology of water hypoxia and environmental phenomenon to be carried out long-continued efficient real time and monitor.
In view of the monitoring means and the level of prior art, at the monitoring device of offshore ocean floor hypoxia phenomenon, need possess following characteristics: (1) is safe in utilization and convenient, avoid using cable carry out data from the seabed real-time Transmission to the sea; (2) low in energy consumption, the unsuitable volume of monitoring device that works in the seabed first is excessive, not so lay, removal process all can bring more risk, so institute's charged pool capacity is little naturally, second the System production time length of trying one's best can reduce the number of times that lays and reclaim, thereby reduce the risk and cost, this just requires the work power consumption of system to reduce as far as possible; (3) strong interference immunity, anoxia phenomenon relate to marine physics, chemistry and biological a plurality of process, need carry multiple sensors and carry out data monitoring, the system works instrument is more, must guarantee the separate work of each instrument, avoid the phase mutual interference, improve the reliability and stability of system works; (4) extensibility is good, and sea sensor monitoring technology development nowadays is very fast, and system must have certain extendability and compatible to realize the monitoring to anoxia phenomenon better; (5) the accurate safety of data, Monitoring Data accurately is the basic condition that we understand, study anoxia phenomenon, and must guarantee the safety of data in transmission course.
CN1744143A " a kind of ocean waters sensor network monitoring system ", a kind of network monitoring system based on the wireless data transmission mode is disclosed, it mainly is made up of computing machine, base station and on-line monitoring node, under programmed control is separately coordinated, forms by the interconnection of wireless receiving and dispatching interface.With monitoring node interconnection path each other, be route discovery between base station and the monitoring node by the node interaction, the formation of real-time implementation self-organizing network.It can monitor the situation such as water quality, temperature, wave of maritime waters in real time, but its usable range is confined to seawater surface, does not relate to the particularly data monitoring of bottom and transmission under the ocean water.CN101358867A " a kind of ocean water level real-time monitoring system " discloses a kind of ocean water level real-time monitoring system that comprises seabed signals collecting part, sea signal transfer part and bank station control section.The seabed signals collecting partly is used to gather the data that characterize water level, and these data are sent to sea signal transfer part; Sea signal transfer partly is used to receive the data that characterize water level, and with this data forwarding to the bank station control section; The bank station control section is used to receive the data of the sign water level that sea signal transhipment department branch sends, and will store these data.This monitoring system is sent to bank station with ocean bottom waterlevel data in real time by wireless transmission and signal transfer mode, it has done certain design on safe in utilization and data security, but it only carries a kind of survey sensor, therefore relating to aspects such as power consumption, anti-interference and extensibility also has certain distance, is difficult to be applied to ocean anoxia phenomenon monitoring.CN100564152C " a kind of self-sustaining marine environmental monitoring system " discloses a kind of marine environmental monitoring system that comprises jellyfish, measuring table and mooring system, can carry out the measurement of water body parameter, yet, this monitoring system Monitoring Data adopts the self-tolerant storage, need reclaiming monitoring system reads and obtains, it does not relate to data transmission technology, thereby can't monitor in real time.
Summary of the invention
Technical problem to be solved in the utility model is, overcome the defective that prior art exists, provide a kind of being used for that ocean floor hypoxia phenomenon is monitored in real time, safe and convenient to use, low in energy consumption, strong interference immunity, extensibility are good, the accurate offshore ocean floor hypoxia phenomenon real-time monitoring device of safety of data.
The technical scheme in the invention for solving the above technical problem is: this offshore ocean floor hypoxia phenomenon real-time monitoring device, and its design feature is: comprise water quality monitoring substation, water quality monitoring controlling center, underwater sound communication and 232 serial communication substation and power brick;
Described water quality monitoring substation comprises digital sensors integration module and analog sensor integration module, the water quality monitoring controlling center comprises data processor and extends out memory module that underwater sound communication and 232 serial communication substations comprise seabed underwater sound communication machine integration module, sea underwater sound communication machine and 232 serial communication modules;
Described data processor by the on-site transfer bus with digital sensors integration module, analog sensor integration module, extend out memory module, seabed underwater sound communication machine integration module is connected, data processor is connected with 232 serial communication modules by 232 buses, and power brick is connected with the water quality monitoring controlling center.
The operation of water quality monitoring controlling center control water quality monitoring substation and underwater sound communication and 232 serial communication substations, the water quality monitoring controlling center carries out data acquisition to the digital sensors of digital sensors integration module and the analog sensor of analog sensor integration module in the mode of sequential scanning, the data of obtaining are carried out verification, merge, storage, and use self-defining method to encrypt to merging the back data, the data encrypted bag is sent to the seabed underwater sound communication machine of underwater sound communication and 232 serial communication substations by the on-site transfer bus, underwater sound communication machine in seabed is fit at underwater sound communication environment under the condition of data transmission packet be transferred to sea underwater sound communication machine from the seabed; Substation, water quality monitoring controlling center and underwater sound communication and the power supply of 232 serial communication substations are surveyed in power brick feedwater quality supervision.
The utility model offshore ocean floor hypoxia phenomenon real-time monitoring device, described water quality monitoring substation comprise four digital sensors integration modules and two analog sensor integration modules;
Described four digital sensors integration modules are respectively the integrated module of current meter sensor, the integrated module of nitrate sensor, the integrated module of water quality instrument sensor and dissolved oxygen sensor integration module, their integration mode is identical, comprises separately sensor, RS232 interface, RS232 single channel chip for driving, input optocoupler, output photoelectrical coupler, two-way transmission bus driver chip respectively; Described current meter sensor, nitrate sensor, water quality instrument sensor and dissolved oxygen sensor 232 digital signals separately RS232 interface, RS232 single channel chip for driving, input optocoupler, output photoelectrical coupler, the two-way transmission bus driver chip by separately respectively link to each other with the on-site transfer bus of data processor;
Described two analog sensor integration modules comprise substation supply voltage simulating signal and temperature analog signal integration module, wherein substation supply voltage simulating signal integration module uses the power brick bleeder mechanism to connect the first via passage of two-way AD conversion chip, temperature analog signal integration module serviceability temperature sensor connects second paths of two-way AD conversion chip, and two-way AD conversion chip is integrated with data processor by the on-site transfer bus then.
The digital sensors integration module is responsible for the sampling to each parameter of water quality, and the analog sensor integration module is responsible for water quality monitoring substation operating voltage and temperature signal collection.Under the mode of operation, after the digital sensors integration module is received the activation command of data processor, enter duty from dormant state, water quality parameter is sampled, after sampling finishes, the water quality monitoring substation is waited for the order of water quality monitoring controlling center, behind the data acquisition command of receiving the water quality monitoring controlling center, just the data that collect is sent to the water quality monitoring controlling center.When the water quality monitoring controlling center data are carried out verification errorless after, carry out the water quality sampling of another one digital sensors integration module, all gather up to the data of all water quality monitoring substations and finish.After all data acquisitions finished, the integrated module of each sensor entered dormant state, to realize energy-conservation purpose.
The utility model offshore ocean floor hypoxia phenomenon real-time monitoring device, described water quality monitoring controlling center also comprise reset monitoring circuit, artificial debugging interface, peripheral hardware power control circuit and real-time hour hands circuit; Described peripheral hardware power control circuit comprises triode and relay, and real time clock circuit comprises real-time clock battery and real-time clock crystal oscillating circuit;
The P0.10 pin of described data processor connects power brick by triode, relay, constitutes the peripheral hardware power control circuit; The SSEl1 of data processor connects and draws resistance to arrive+3.3V, i.e. the VDD pin of data processor; The Vbat pin of data processor connects the real-time clock battery, and real-time clock is carried out independent powered battery, and the RTXC1 pin of data processor is connected the real-time clock crystal oscillating circuit with the RTXC2 pin; The RST pin of data processor connects the reset monitoring circuit; The emulated port of data processor connects the artificial debugging interface.
The work of water quality monitoring controlling center is opened identification constantly and is controlled automatically by the real-time clock of water quality monitoring controlling center data processor inside, when work no show constantly, the data processor of water quality monitoring controlling center is in power-down state, and other peripheral hardwares of water quality monitoring controlling center are in off-position by disconnecting the relay path.When the working time arrives, the data processor of real-time clock waking-up power-down state, data processor makes whole water quality monitoring controlling center in running order by instruction engage relay path.The water quality monitoring controlling center carries out communication with each substation respectively, data are gathered, and the data that collect are carried out verification one by one, after verification is errorless, data are merged, and data storage the extending out in the memory module at the water quality monitoring controlling center after merging.Data after merging are carried out self-defining cryptographic algorithm, before the data encrypted bag being sent to seabed underwater sound communication machine, water quality monitoring controlling center data processor sends " detection " order to seabed underwater sound communication machine earlier, seabed underwater sound communication machine returns the detection data, when data presentation ambient water acoustic environment helps the transmission of the data underwater sound, water quality data after data processor will be encrypted is sent to seabed underwater sound communication machine, seabed underwater sound communication machine again with data transmission to sea underwater sound communication machine; When if data presentation ambient water acoustic environment is unfavorable for the transmission of the data underwater sound, data processor will be ordered seabed underwater sound communication machine " detection " once every 5 minutes, and the water quality data after will encrypting is sent to sea underwater sound communication machine or next work arriving constantly.In addition, when the dissolved oxygen value of monitoring during smaller or equal to 2mg/l, monitoring device will improve frequency of operation.Except the supply voltage of each water quality parameter value and system, temperature, also has the real-time clock value in the data encrypted bag.Sea underwater sound communication machine on the sea is grasped ocean bottom water quality condition by each water quality parameter; Grasp the operation conditions of water quality monitoring controlling center by system's supply voltage and temperature; Value detection real-time clock by the verification real-time clock has or not the generation drift phenomenon, in case drift about, sends correction instruction by sea underwater sound communication machine, transmits the value feedwater quality supervision observing and controlling system main website of real-time clock accurately.
The utility model offshore ocean floor hypoxia phenomenon real-time monitoring device, described seabed underwater sound communication machine integration module comprises seabed underwater sound communication machine, RS232 interface, RS232 single channel chip for driving, input optocoupler, output photoelectrical coupler, two-way transmission bus driver chip;
The data communication method of described seabed underwater sound communication machine integration module and water quality monitoring controlling center adopts the on-site transfer bus communication; 232 digital signals of described seabed underwater sound communication machine link to each other with the on-site transfer bus of data processor by RS232 interface, RS232 single channel chip for driving, input optocoupler, output photoelectrical coupler, two-way transmission bus driver chip;
The seabed underwater sound communication machine of described underwater sound communication and 232 serial communication substations and sea underwater sound communication machine carry out data transmission by the underwater sound communication mode;
232 serial communication modules of described underwater sound communication and 232 serial communication substations adopt RS232 two-way chip for driving, the first via signal of this RS232 two-way chip for driving is connected with the UART0 serial ports of data processor, its 232 transfer bus links to each other with DB9 female interface, the second road signal of RS232 two-way chip for driving is connected with the UART1 serial ports of data processor, and its 232 transfer bus links to each other with DB9 male interface.
Seabed underwater sound communication machine be responsible for water quality monitoring controlling center and sea underwater sound communication machine between data send and reception.Underwater sound communication machine in seabed is in dormant state under the state that does not have data to send and receive.When seabed underwater sound communication machine examination measured from the order of water quality monitoring controlling center or data, it entered into state of activation from dormant state, begins to carry out corresponding order or carries out Data Receiving and transmission.When sea underwater sound operating office sent data to seabed underwater sound communication machine, seabed underwater sound communication machine can enter into state of activation from dormant state equally, and the packet that receives is sent to the water quality monitoring controlling center.After 232 digital signals of seabed underwater sound communication machine transmission are converted into the TTL signal through RS232 single channel chip for driving, through input optocoupler and output photoelectrical coupler the TTL signal is isolated again, TTL signal after the isolation is through two-way transmission bus driver chip, make the TTL signal be converted into the signal that meets the on-site transfer bus protocol, all signals that meet the on-site transfer bus protocol are integrated into the water quality monitoring controlling center by the on-site transfer bus at last, utilize the sheet of on-site transfer bus to select function that seabed underwater sound communication machine integration module is carried out the system integration, realize the integrated of underwater sound communication and 232 serial communication substations and water quality monitoring controlling center with this.
The utility model offshore ocean floor hypoxia phenomenon real-time monitoring device, the integrated module of described current meter sensor, the integrated module of nitrate sensor, the integrated module of water quality instrument sensor and four digital sensors integration modules of dissolved oxygen sensor integration module all adopt independently by the transformation module of the peripheral hardware power control circuit control break-make of data processor controlled and power separately.
The power supply of each digital sensors integration module is isolated mutually, and the power supply between digital sensors integration module and the water quality monitoring controlling center is also isolated; Improve the reliability of monitoring device, avoided the phase mutual interference between each digital sensors integration module.
The utility model offshore ocean floor hypoxia phenomenon real-time monitoring device, the power module of described water quality monitoring controlling center is divided into separate analog power circuit module and digital power circuit module, and the ground of described analog power circuit module and digital power circuit module is connected by magnetic bead; Separately power supply is to reduce the noise and the probability of makeing mistakes.
Described analog power circuit module is PLL power supply in the data processor sheet by the transformation chip, and the input end of transformation chip is directly from the power taking of power brick interface, and connects shunt capacitance, output termination capacitor, diode, inductance, and output voltage is 3.3V;
Described digital power circuit module is the relay power supply of data processor kernel and I/O mouth and peripheral hardware power control circuit by two-stage transformation chip, the input end of first order transformation chip is directly from the power taking of power brick interface, and connect shunt capacitance, its output termination capacitor, diode, inductance, power to relay, output voltage is 5V, this output connects the input end of second level transformation chip again, the output terminal of second level transformation chip is given data processor kernel and I/O confession electricity, and output voltage is 3.3V.
The utility model offshore ocean floor hypoxia phenomenon real-time monitoring device, the 3.3V digital power of the described 3.3V digital power that extends out memory module, two-way transmission bus driver chip, the analog power of two-way AD conversion chip are different with the 3.3V digital power power supply of data processor; Described data processor directly provides power supply from power brick by the transformation chip; Extend out memory module, the two-way transmission bus driver chip relay normally open contact of the peripheral hardware power control circuit of process data processor controlled earlier, provide power supply through independent transformation chip again; Two two-way transmission bus driver chips of four digital sensors integration modules adopt unified transformation chip power supply, by the I/O mouth control break-make of data processor; Extend out and carry out digital-to-analogue with magnetic bead between the analog power of the digital power of memory module, two-way transmission bus driver chip and two-way AD conversion chip and isolate; Temperature sensor is from the relay normally open contact power taking of the peripheral hardware power control circuit of data processor controlled, without the transformation chip.When data processor was in power-down mode, it cut off the power supply that extends out memory module, two-way transmission bus driver chip, two-way AD conversion chip and temperature sensor, to save electric energy; When data processor was in mode of operation, it connected the power supply that extends out memory module, two-way transmission bus driver chip, two-way AD conversion chip and temperature sensor.
The utility model offshore ocean floor hypoxia phenomenon real-time monitoring device, described seabed underwater sound communication machine integration module adopts independent transformation module for power supply, the power supply of 232 serial communication modules is powered from the transformation chip output of digital power circuit module, and passes through toggle switch; The transformation module of the transformation module of described seabed underwater sound communication machine integration module, the transformation module of the integrated module of current meter sensor, the integrated module of nitrate sensor, the transformation module of the integrated module of water quality instrument sensor and dissolved oxygen sensor integration module transformation module all adopt voltage stabilizing to isolate the transformation chip.Data when 232 serial communication modules are used for the utility model monitoring device and are recovered on the sea are downloaded, and monitoring device utilizes toggle switch to control the break-make of this 232 serial communication modular power source; When system works in the seabed, disconnect toggle switch, this moment, 232 serial communication modules were not worked; When being recycled to when needing on the sea to download to the data that extend out memory module on computer or the other-end equipment by 232 serial communication modules, connect toggle switch, send download instruction for 232 serial communication modules.When not using 232 serial communication modules, close toggle switch, to reach purpose of energy saving in the seabed.
The utility model offshore ocean floor hypoxia phenomenon real-time monitoring device, described data processor adopts the LPC2138 chip, extend out memory module and adopt the SD storage card, the on-site transfer bus adopts the SPI transfer bus, two-way transmission bus driver chip adopts SC16IS762 two-way SPI transfer bus chip for driving, RS232 single channel chip for driving adopts the MAX221 chip, RS232 two-way chip for driving adopts the MAX232 chip, input, the output photoelectrical coupler adopts the 4N25 photoelectrical coupler, two-way AD conversion chip adopts the AD7705 chip, temperature sensor adopts the LM35 chip, the reset monitoring circuit adopts the CAT809 chip, the artificial debugging interface adopts the JTAG artificial debugging interface of standard 20 pin, the programmable RTC real-time clock that real-time clock adopts data processor inside to carry, the cell voltage of power brick is 7.5-12V, the triode of peripheral hardware power control circuit adopts 9013 triodes, relay adopts the UB2-4.5NU relay, the transformation module of seabed underwater sound communication machine integration module, the transformation module of the integrated module of current meter sensor, the transformation module of the transformation module of the integrated module of nitrate sensor and the integrated module of water quality instrument sensor all adopts the IB10.805S-1W voltage stabilizing to isolate the transformation chip, dissolved oxygen sensor integration module transformation module adopts the IB10.805S-2W voltage stabilizing to isolate the transformation chip, two two-way transmission bus driver chips of digital sensors integration module adopt LM2575-3.3 transformation chip power supply, the analog power circuit module adopts LM2575-3.3 transformation chip, and the digital power circuit module adopts LM2575-5 and G1117 two-stage transformation chip.
Signal between four digital sensors integration modules of this offshore ocean floor hypoxia phenomenon real-time monitoring device is isolated mutually, the signal of each digital sensors module and water quality monitoring controlling center is also isolated mutually, during the signal transmission, the output of separately 232 digital signals is after after RS232 single channel chip for driving separately is converted into the TTL signal, by input optocoupler and output photoelectrical coupler the TTL signal is isolated again, by two-way transmission bus driver chip the TTL signal is converted into the signal that meets field bus protocol then, all signals that meet field bus protocol utilize the sheet of on-site transfer bus to select function that four way word quantity sensor modules are carried out the system integration to data processor at last.Signal Spacing between seabed underwater sound communication machine integration module and the water quality monitoring controlling center, after 232 digital signals of seabed underwater sound communication machine transmission are converted into the TTL signal through RS232 single channel chip for driving, through input optocoupler and output photoelectrical coupler the TTL signal is isolated again, TTL signal after the isolation is through two-way transmission bus driver chip, make the TTL signal be converted into the signal that meets field bus protocol, utilize the sheet of on-site transfer bus to select function that seabed underwater sound communication machine module is carried out the system integration.
The signal of each digital sensors integration module is isolated mutually, signal between water quality monitoring controlling center and digital sensors integration module, the seabed underwater sound communication machine integration module is also isolated, improved the reliability of monitoring device, avoid the phase mutual interference between each integration module, solved signal because of a certain road integration module and gone wrong and influence the problem of other several roads integration module signals.
The utility model compared with prior art has following beneficial effect:
1, the utility model monitoring device provides a kind of new monitoring mode for the offshore ocean floor hypoxia phenomenon monitoring, on the basis of underwater sound communication machine in sea by buoy or ship lift-launch, seabed, the coastal waters briny environment condition data relevant of having the ability to obtain accurately and real-time on land with anoxic; And this monitoring device compares with the monitoring device that prior art utilizes cable to carry out data transmission, utilizes the utility model monitoring device of the underwater sound means of communication more convenient in the use and safer.
2, the utility model monitoring device has been strengthened the design on interference free performance, has guaranteed the reliability and stability of its work.Each digital sensors integration module and seabed underwater sound communication machine have carried out physical isolation by the transformation module in this monitoring device on feed circuit, on signal path, carried out physical isolation by photoelectric isolation module, thereby it is independent separately when guaranteeing their work, the single instrument Shi Buhui that breaks down influences the work of other instruments, has avoided influencing each other and disturbing.
3, the utility model monitoring device has been strengthened the design on low power capabilities.This monitoring device data processor is in power-down mode when not working, power consumption is almost nil; The power supply of its digital sensors integration module and analogue collection module is controlled by relay by data processor, when data processor is in power-down mode, utilize internal processes to disconnect the power supply of digital sensors integration module and analogue collection module; The power supply of 232 serial communication modules is controlled by toggle switch, when not using 232 serial communication modules, closes toggle switch; Carry out underwater sound condition judgment before the seabed underwater sound communication machine transmission data earlier, to avoid under the situation of the underwater sound condition deficiency consumes power in vain.
4, the utility model monitoring device has been strengthened the design on the Scalable Performance.This monitoring device can utilize the function of SPI transfer bus, expands the monitoring means of water quality monitoring substation easily; The water quality monitoring substation all adopts 232 bus communication modes in the utility model monitoring device, and the water quality monitoring substation of expansion also can adopt bus communication modes such as 485,422.
5, the utility model monitoring device strengthened data acquisition accurately, the design on the transmission security performance.This monitoring device carries out rationality when DATA REASONING judges, carries out back-up storage and encryption after collection, carries out environment underwater sound condition judgment when the underwater sound transmits, and has guaranteed the accuracy and the security of Monitoring Data.
6, the utility model monitoring device is when ocean bottom seawater occurs dissolved oxygen value smaller or equal to the anoxia phenomenon of 2mg/l, can double frequency of operation automatically or more than, thereby can understand the variation of seabed briny environment condition quickly, for anoxia phenomenon research provides more full and accurate data; Frequency of operation also can artificially send instruction by sea underwater sound communication machine and control adjustment.
Description of drawings
Fig. 1 is the utility model embodiment offshore ocean floor hypoxia phenomenon real-time monitoring device structured flowchart.
Fig. 2 is the water quality monitoring substation structured flowchart of embodiment among Fig. 1.
Fig. 3 is the digital sensors integration module power supply circuit of water quality monitoring substation among Fig. 2.
Fig. 4 is the current meter and the integrated module SPI transfer bus of the nitrate sensor driving circuit figure of water quality monitoring substation among Fig. 2.
Fig. 5 is the analog signals integration module circuit diagram of water quality monitoring substation among Fig. 2.
Fig. 6 is the water quality monitoring controlling center structured flowchart of embodiment among Fig. 1.
Fig. 7 is a water quality monitoring controlling center power supply circuit among Fig. 6.
Fig. 8 is the real-time clock RTC configuration circuit figure of water quality monitoring controlling center among Fig. 6.
Fig. 9 is the SD storage card SPI transfer bus driving circuit figure of water quality monitoring controlling center among Fig. 6.
Figure 10 is underwater sound communication and the 232 serial communication substation structured flowcharts of embodiment among Fig. 1.
Figure 11 is underwater sound communication and 232 serial communication substation power supply circuits among Figure 10.
Figure 12 is 232 serial communication module circuit diagrams of underwater sound communication and 232 serial communication substations among Figure 10.
Figure 13 is the integrated module circuit diagram of underwater sound communication of underwater sound communication and 232 serial communication substations among Figure 10.
Figure 14 is the peripheral hardware power control circuit circuit diagram of embodiment among Fig. 1.
Embodiment
Below by embodiment, in conjunction with the accompanying drawings the utility model is further elaborated.
Referring to Fig. 1, embodiment offshore ocean floor hypoxia phenomenon real-time monitoring device comprises water quality monitoring substation a, water quality monitoring controlling center b, underwater sound communication and 232 serial communication substation c and power brick d.Water quality monitoring substation a comprises digital sensors integration module and analog sensor integration module, wherein, the digital sensors integration module is provided with four, be respectively the integrated module of current meter sensor, the integrated module of nitrate sensor, the integrated module of water quality instrument sensor and dissolved oxygen sensor integration module, their integration mode is identical; The analog sensor integration module is provided with substation supply voltage simulating signal and two integration modules of module temperature analog signal.Its digital sensors integration module is responsible for the sampling to each parameter of water quality, and the analog sensor integration module is responsible for water quality monitoring substation operating voltage and temperature signal collection.Water quality monitoring controlling center b comprises data processor 1, extends out memory module 23, reset monitoring circuit 37, artificial debugging interface 25, peripheral hardware power control circuit and real time clock circuit.Underwater sound communication and 232 serial communication substation c comprise seabed underwater sound communication machine integration module, sea underwater sound communication machine 44 and 232 serial communication modules.Data processor 1 by on-site transfer bus 38 with digital sensors integration module, analog sensor integration module, extend out memory module 23, seabed underwater sound communication machine integration module is connected; Data processor 1 is connected with DB9 female interface 32, the DB9 male interface 33 of 232 serial communication modules 31 by 232 buses 40; Power brick d is connected with water quality monitoring controlling center b.
The operation of water quality monitoring controlling center b control water quality monitoring substation a and underwater sound communication and 232 serial communication substation c, the power brick d quality supervision of being responsible for feeding water is surveyed substation a, water quality monitoring controlling center b and underwater sound communication and 232 serial communication substation c and is powered.Water quality monitoring controlling center b carries out data acquisition to digital quantity and the analog sensor of water quality monitoring substation a in the mode of sequential scanning, the data of obtaining are carried out verification, fusion, storage, and use self-defining method to encrypt to merging the back data, the data encrypted bag is sent to underwater sound communication and 232 serial communication substation c by 232 buses 40, underwater sound communication and 232 serial communication substation c are fit at underwater sound communication environment under the condition of data transmission packet be transferred to the sea from the seabed.
Embodiment water quality monitoring substation a structure is referring to Fig. 2～5.
As shown in Figure 2, four of the water quality monitoring substation digital sensors integration modules comprise separately sensor, RS232 interface, RS232 single channel chip for driving, input optocoupler, output photoelectrical coupler, two-way transmission bus driver chip respectively.Embodiment RS232 single channel chip for driving adopts the MAX221 chip, and input, output photoelectrical coupler all adopt the 4N25 photoelectrical coupler.232 signals of the current meter sensor 2 of the integrated module of current meter sensor connect RS232 single channel chip for driving
H3; RS232 single channel chip for driving
H3 c1+, c1-, external two electric capacity of four ports of c2+, c2-play the voltage transformation; RS232 single channel chip for driving
HThe transformation module 34a of the isolation stabilized voltage supply that 3 power pins order is only---the integrated module of current meter sensor; RS232 single channel chip for driving
H3 input signal connects the 4N25 photoelectrical coupler
HR4, output signal connects another 4N25 photoelectrical coupler
HC5, this photoelectrical coupler
HC5 connect and draw the transformation module 34a of resistance to the integrated module of current meter sensor; The signal of two-way after photoelectric coupler isolation connects two-way SPI transfer bus chip for driving
HX6 first via serial port, SPI transfer bus chip for driving
HX6 power supply connects other one group of power supply, SPI transfer bus chip for driving
HX6 SPI port is connected to LPC2138 data processor 1 by the SPI transfer bus.232 signals of the nitrate sensor 7 of the integrated module of nitrate sensor connect another RS232 single channel chip for driving
X8, RS232 single channel chip for driving
X8 c1+, c1-, external two electric capacity of four ports of c2+, c2-play the voltage transformation; RS232 single channel chip for driving
X8 power port connects an independent isolation stabilized voltage supply---the transformation module 34b of the integrated module of nitrate sensor; RS232 single channel chip for driving
X8 input signal connects photoelectrical coupler
XR9, output signal connects another photoelectrical coupler
XC10, this photoelectrical coupler
XC10 connect and draw the transformation module 34b of resistance to the integrated module of nitrate sensor; Connect with a slice two-way SPI transfer bus chip for driving through signal and current meter sensor 2 signals after the photoelectric coupler isolation
HX6 the second road serial port.232 signals of the water quality instrument sensor 11 of the integrated module of water quality instrument sensor connect RS232 single channel chip for driving
S12; RS232 single channel chip for driving
S12 c1+, c1-, external two electric capacity of four ports of c2+, c2-play the voltage transformation; RS232 single channel chip for driving
S12 power pins connects an independent isolation stabilized voltage supply---the transformation module 34c of the integrated module of water quality instrument sensor; RS232 single channel chip for driving
S12 input signal connects photoelectrical coupler
SR13, output signal connects another photoelectrical coupler
SC14, this photoelectrical coupler
SC14 connect and draw the transformation module 34c of resistance to the integrated module of water quality instrument sensor; Insert other a slice two-way SPI transfer bus chip for driving through the signal after the photoelectric coupler isolation
SR15 first via serial port, the SPI port of two-way SPI transfer bus chip for driving is connected to LPC2138 data processor 1 by the SPI transfer bus.232 signals of the dissolved oxygen sensor 16 of dissolved oxygen sensor integration module connect RS232 single channel chip for driving
R17; RS232 single channel chip for driving
R17 c1+, c1-, external two electric capacity of four ports of c2+, c2-play the voltage transformation; RS232 single channel chip for driving
R17 power pins connects an independent isolation stabilized voltage supply---the transformation module 34d of dissolved oxygen sensor integration module; RS232 single channel chip for driving
R17 input signal connects photoelectrical coupler
RR18, output signal connects another photoelectrical coupler
RC19, photoelectrical coupler
RC19 connect and draw the transformation module 34d of resistance to the dissolved oxygen sensor integration module; Signal access after the process photoelectric coupler isolation and the integrated module 11 of water quality instrument sensor are with a slice two-way SPI transfer bus chip for driving
SR15 the second road serial port.The analog sensor integration module constitutes substation supply voltage simulating signal integration module and module temperature analog signal integration module by power brick bleeder mechanism 20, two-way AD conversion chip 42 and temperature sensor 43, embodiment two-way AD conversion chip 42 adopts the AD7705 chip, and temperature sensor 43 adopts the LM35 chip.Supply voltage connects power brick bleeder mechanism 20 earlier, connects the first via passage of AD7705 two-way AD conversion chip 42 again; LM35 temperature sensor 43 connects second paths of AD7705 two-way AD conversion chip 42.
Digital sensors integration module feed circuit as shown in Figure 3, the transformation module of digital sensors integration module 34 belongs to the power circuit module that is subjected to the control of peripheral hardware power control circuit.Four all power supplies separately of digital sensors integration module, their method of supplying power to is identical, and the power circuit module of the transformation module of four digital sensors integration modules is by data processor 1 control break-make.The transformation module 34c of the transformation module 34a of the integrated module of embodiment current meter sensor, the transformation module 34b of the integrated module of nitrate sensor and the integrated module of water quality instrument sensor all adopts the IB10.805S-1W voltage stabilizing to isolate the transformation chip, the transformation module 34d of dissolved oxygen sensor integration module adopts the IB10.805S-2W voltage stabilizing to isolate the transformation chip, the input pin of each power module is from the normally opened contact power taking of relay 22, by the break-make of relay 22 control power supplys.
Current meter is connected as shown in Figure 4 with the integrated module SPI transfer bus of nitrate sensor driving circuit, signal between four digital sensors integration modules is isolated mutually, and the signal of each digital sensors integration module and water quality monitoring controlling center b is also isolated mutually.232 digital signals of current meter sensor 2 are through RS232 single channel chip for driving
H3 carry out Signal Spacing by the 4N25 photoelectrical coupler after being converted into the TTL signal, and the signal after the isolation is connected to SC16IS762 two-way SPI transfer bus chip for driving
HX6 first via serial port, SC16IS762 connect the SPI port of LPC2138 data processor 1 by the SPI transfer bus 38 of 4 line systems.LPC2138 data processor 1 works under the SPI holotype, its SSEL1 pin connect pull-up resistor R22 to+3.3V, i.e. the VDD pin of data processor 1.The P0.16 pin that the CS pin of SC16IS762 connects LPC2138 carries out the sheet choosing; The IRQ pin of SC16IS762 connects the EINT2 pin of LPC2138, and when there were valid data the SC16IS762 internal buffer, the low level by this pin made LPC2138 produce interrupt response; The RESET pin of SC16IS762 connects the RST pin of LPC2138; The SPI pin ground connection of SC16IS762 works under the SPI pattern SC16IS762.232 digital signals of nitrate sensor 7 are through RS232 single channel chip for driving
X8 carry out Signal Spacing by the 4N25 photoelectrical coupler after being converted into the TTL signal, and the signal after the isolation connects SC16IS762 two-way SPI transfer bus chip for driving
HX6 the second road serial port.LPC2138 data processor 1 can carry out twin-channel data read and transmission by the order of the different addresses of spi bus 38 transmissions.The SPI transfer bus driving circuit of integrated module of water quality instrument sensor and dissolved oxygen sensor integration module is connected and is same as current meter and the integrated module of nitrate sensor.
Analog signals integration module circuit as shown in Figure 5, the supply voltage of detection just carries out voltage detecting from relay 22 1 end power takings when LPC2138 data processor 1 is under the mode of operation.The detection voltage range of AD7705 two-way AD conversion chip 42 is 0～2.5V, and input voltage is 10.8V, so adopt precision resistance R19 and R20 to carry out dividing potential drop, more suitable voltage is input to first via passage AIN1 (+) pin of AD7705.LM35 temperature sensor 43 connects second paths AIN2 (+) pin of AD7705, utilizes the enlarging function of AD7705 inside analog voltage to be amplified to the magnitude of voltage that is fit to the AD7705 collection.The P0.30 pin that the CS pin of AD7705 meets LPC2138 carries out the sheet choosing; The DRDY pin of AD7705 connects the EINT2 pin of LPC2138, and when having gathered analog voltage, the low level of DRDY pin makes LPC2138 produce interrupt response; The RESET pin of AD7705 connects the RST pin of LPC2138, and the DOUT pin of AD7705 connects the MISO1 pin of LPC2138.The SCK1 pin of LPC2138 connects the SCLK pin of AD7705, is connected to+3.3V behind the SSEL1 pin connecting resistance R22 of LPC2138.
Embodiment water quality monitoring controlling center b structure is referring to Fig. 6～9.
As shown in Figure 6, the peripheral hardware power control circuit of water quality monitoring controlling center b comprises triode 21 and relay 22, and real time clock circuit comprises real-time clock battery 24 and real-time clock crystal oscillating circuit 41.Embodiment reset monitoring circuit 37 adopts the CAT809 chip, the artificial debugging interface adopts the JTAG artificial debugging interface of standard 20 pin, the programmable RTC real-time clock that real-time clock adopts data processor 1 inside to carry, the triode of peripheral hardware power control circuit adopt 9013 triodes, relay to adopt the UB2-4.5NU relay.The P0.31 port of LPC2138 data processor 1 connects 9013 triodes 21, and triode 21 is succeeded electrical equipment 22 control power circuits again; The SPI port of LPC2138 data processor 1 is connected to the SD storage card by SPI transfer bus 38, promptly extends out on the memory module 23; The Vbat pin of LPC2138 data processor 1 connects external cell and power supply is provided for the RTC real-time clock; The JTAG artificial foot of LPC2138 connects the standard JTAG artificial debugging interface 25 of 20 pins; The RTXC1 pin of LPC2138 and RTXC2 pin connect real-time clock crystal oscillating circuit 41 and real-time clock battery 24 constitutes complete real-time clock peripheral circuit together; The RST pin of LPC2138 connects the reset low level reset monitoring circuit 37 of chip based on CAT809; The analog power of LPC2138 and digital power pin are respectively by analog power module and the separately power supply of digital power module.Among the figure, 35 for the power module of water quality monitoring controlling center.
Power module 35 circuit of water quality monitoring controlling center b as shown in Figure 7, the power module of water quality monitoring controlling center 35 is not for being subjected to the power circuit module of peripheral hardware power control circuit control.The power module 35 of water quality monitoring controlling center b is divided into analog power circuit module 35a and digital power circuit module 35b, and both are separate, and analog power circuit module 35a is connected by magnetic bead with the ground of digital power circuit module 35b.The cell voltage of power brick is 7.5-12V, it is PLL power supply in the data processor sheet that analog power circuit module 35a adopts LM2575-3.3 transformation chip, its input end is directly from the power taking of battery supply interface, and meet shunt capacitance C3, output termination capacitor C 4, diode D2, inductance L 2, output voltage is 3.3V; It is the relay power supply of data processor kernel and I/O mouth and control power supply that digital power circuit module 35b adopts LM2575-5 and G1117 two-stage transformation chip, the input end of LM2575-5 transformation chip is directly from the power taking of battery supply end interface, and meet shunt capacitance C5, its output termination capacitor C 6, diode D3, inductance L 3, power to relay, output voltage is 5V, and then connect the input end of G1117 transformation chip, the output terminal of G1117 is given data processor kernel and I/O confession, output voltage is 3.3V, and capacitor C 7, C8 constitute filtering circuit among the figure.
Real-time clock RTC disposes as shown in Figure 8, and the external real-time clock battery 24 of the Vbat pin of LPC2138 data processor 1 makes system under the situation of outage, and real-time clock still is operated in time status.The real-time clock crystal oscillating circuit 41 of the RTXC1 of LPC2138 and the external standard of RTXC2 pin, LPC2138 is in power-down mode following time, and the LPC2138 oscillator cuts out, and real-time clock relies on this real-time clock crystal oscillating circuit 41 to work as the clock source.C16 and C17 are real-time clock crystal oscillating circuit electric capacity among the figure.
The SPI transfer bus driving circuit that extends out memory module SD storage card as shown in Figure 9, two ports of DO, DI that extend out memory module 23 connect the VDD pin of pull-up resistor R11, R10 to LPC2138 data processor 1 respectively, promptly+3.3V, the SD storage card is worked under the SPI pattern, and the DO of SD storage card 23, DI bipod are also corresponding respectively to be connected with MISO1, the MOSI1 pin of LPC2138; The SPI transfer bus of SD storage card 23 adopts 4 line systems, is connected to the SPI port of LPC2138 data processor 1, and promptly the CLK pin of SD storage card 23 is connected with the SCK1 pin of LPC2138; The P1.16 pin that the CS pin of SD storage card 23 connects LPC2138 data processor 1 carries out the sheet choosing.The SSEL1 pin of data processor 1 connects the VDD pin that draws resistance R 22 to LPC2138 data processors 1, promptly connects+3.3V, and LPC2138 data processor 1 is worked under the SPI holotype.
Underwater sound communication and 232 serial communication substation c structures are referring to Figure 10～13.
As shown in figure 10, the seabed underwater sound communication machine integration module of underwater sound communication and 232 serial communication substation c comprises seabed underwater sound communication machine 26, RS232 interface, RS232 single channel chip for driving, input optocoupler, output photoelectrical coupler, two-way SPI transfer bus chip for driving; 232 serial communication modules comprise the female interface 32 of RS232 two-way chip for driving 31, DB9 and the male interface 33 of DB9, and embodiment RS232 two-way chip for driving 31 adopts the MAX232 chip.232 signals of seabed underwater sound communication machine 26 transmission connect RS232 single channel chip for driving
C27, RS232 single channel chip for driving
C27 c1+, c1-, c2+, external two electric capacity of c2-pin play the voltage transformation; RS232 single channel chip for driving
CThe isolation stabilized voltage supply that 27 power pins order is only---the transformation module 36 of seabed underwater sound communication machine integration module; RS232 single channel chip for driving
C27 input signal connects photoelectrical coupler
CR28, output signal connects another photoelectrical coupler
CC29, this photoelectrical coupler
CC29 connect and draw the transformation module 36 of resistance to seabed underwater sound communication machine integration module; Insert two-way SPI transfer bus chip for driving through the signal after the photoelectric coupler isolation
C30 serial port, two-way SPI transfer bus chip for driving
C30 SPI port is connected to LPC2138 data processor 1 by SPI transfer bus 38; The UART0 of LPC2138 connects first port of two-way RS232 chip for driving 31, the UART1 of LPC2138 connects second port of two-way RS232 chip for driving 31, and the output terminal of two-way RS232 chip for driving 31 connects DB9 female interface 32 and DB9 male interface 33 respectively by 232 buses 40 of two-way standard.Seabed underwater sound communication machine 26 and sea underwater sound communication machine 44 carry out data transmission by the underwater sound communication mode.
Underwater sound communication is connected as shown in figure 11 with 232 serial communication substation feed circuit, underwater sound communication integration module in seabed adopts independent isolation stabilized voltage supply---transformation module 36 power supplies of seabed underwater sound communication machine integration module, its transformation module adopts the IB10.805S-1W voltage stabilizing to isolate the transformation chip, the input pin of power supply is succeeded the normally opened contact of electrical equipment 22, by the break-make of relay 22 control power supplys.The power supply of 232 serial communication modules 31 is by toggle switch 39, and the input end water receiving quality supervision observing and controlling system b of main website digital power 5V power end gives 232 serial communication modules 31 power supplies by the ON and the OFF mode of toggle switch 39.
232 serial communication modular circuits connect as shown in figure 12, the UART0 of LPC2138 connects first port of RS232 two-way chip for driving 31MAX232, the UART1 of LPC2138 connects second port of MAX232, as shown in the figure, corresponding respectively T1IN, T2IN, R1IN, the R2IN that meets MAX232 of the TXD0 of LPC2138, TXD1, RXD0, RXD1 pin; Capacitor C 19 is connected between the C1+ and C1-of MAX232, and capacitor C 18 is connected between the C2+ and C2-of MAX232, and MAX232 connects the DB9 male interface 33 and the DB9 female interface 32 of standard 232 buses 40 respectively, conveniently carries out data download and transmission.
The integrated modular circuit of underwater sound communication connects as shown in figure 13, and 232 digital signals of seabed underwater sound communication machine 26 are through RS232 single channel chip for driving
C27 are converted into behind the TTL signal by 4N25 input, output photoelectrical coupler
CR28,
CC29 carry out Signal Spacing, and the signal after the isolation is connected to two-way SPI transfer bus chip for driving
CThe serial port of 30SC16IS762, SC16IS762 connects the SPI port of LPC2138 data processor 1 by the SPI transfer bus of 4 line systems, SSEL1 connects the VDD pin of pull-up resistor R22 to LPC2138 data processor 1, and promptly diagram connects+3.3V, and LPC2138 is worked under the SPI holotype.The P1.21 pin that the CS pin of SC16IS762 connects LPC2138 carries out the sheet choosing; The IRQ pin of SC16IS762 connects the EINT2 pin of LPC2138, and when there were valid data the SC16IS762 internal buffer, the low level by this pin made LPC2138 produce interrupt response; The RESET pin of SC16IS762 connects the RST pin of LPC2138; The SPI pin ground connection of SC16IS762 works under the SPI pattern SC16IS762.
Embodiment offshore ocean floor hypoxia phenomenon real-time monitoring device the peripheral hardware power control circuit referring to Figure 14, the unlatching that the data processor 1 of water quality monitoring controlling center b is controlled 9013 triodes 21 by P0.10 pin and current-limiting resistance R25 is whether.When 9013 triodes 21 are opened, utilize the circuit amplification principle of triode, can cross bigger electric current, thereby produce the elastic force that magnetic force overcomes the relay medi-spring at the coil midstream of UB2-4.5NU relay 22, energized power brick d realizes the external power source control to peripheral hardware.Diode D8 constitutes the discharge circuit of relay 22 among the figure.
The 3.3V digital power of the 3.3V digital power of embodiment SD storage card 23, two-way SPI transfer bus chip for driving, the analog power of two-way AD conversion chip are different with the 3.3V digital power power supply mode of data processor 1; Data processor 1 directly provides power supply from power brick d by the transformation module; SD storage card 23, two-way SPI transfer bus chip for driving C30, HX6 and SR15 through relay 22 normally opened contacts of data processor 1 control, provide power supply through independent transformation module LM2575-3.3 earlier again, by the I/O mouth control break-make of data processor 1; Carrying out digital-to-analogue with magnetic bead between the digital power of SD storage card 23, two-way SPI transfer bus chip for driving and the analog power of two-way AD conversion chip isolates; Temperature sensor 43 is from the relay 22 normally opened contact power takings of data processor 1 control, without the transformation module.
During actual the use, the offshore ocean floor hypoxia phenomenon real-time monitoring device is handled back cloth through withstand voltage, watertight and is put in monitoring seabed, marine site, wherein has only sea underwater sound communication machine 44 cloth to be put in the surface, sea, and is general by buoy or the ship support platform as it.Current meter sensor 2 in the monitoring device in the digital sensors integration module is measured seawater current value, nitrate sensor 7 is measured seawater nitrate content value, water quality instrument sensor 11 is measured the seawater depth of water, temperature, conductivity, turbidity and oxidation-reduction potential value, and dissolved oxygen sensor 16 is measured the seawater dissolved oxygen content value.The parameter measurement data integrity that this monitoring device is relevant with anoxia phenomenon with the coastal ocean bottom and exactly real-time Transmission to the sea.
The principle of work of whole offshore ocean floor hypoxia phenomenon real-time monitoring device is as follows:
The operation of water quality monitoring controlling center b control water quality monitoring substation a and underwater sound communication and 232 serial communication substation c is carried out following workflow: 1. utilize real-time clock RTC that working time and dormancy time are carried out Automatic Detection and Control; 2. control the work of each digital quantity and analog sensor integration module, gather, handle Monitoring Data; 3. control seabed underwater sound communication module and carry out the judgement of underwater sound communication condition, judge under the qualified situation image data is transferred to the sea from the seabed.
According to the device workflow, the initialization frequency of setting the present embodiment be one hour once.Water quality monitoring controlling center b utilizes real-time clock RTC to carry out timing, real-time clock RTC is in time status always, when setting work arrives constantly, water quality monitoring controlling center data processor 1 wakes up to mode of operation from power-down mode, it at first connects the power supply of each module by relay 22, utilize sheet to choose first two-way SPI transfer bus chip for driving then
HX6, by this chip first via serial port and the integrated module communication of current meter sensor, adopt ASCII fromat, send " BREAK " order current meter sensor 2 is triggered to the reception coomand mode from holding state, send " START " order again, make it begin measurement data, after measurement is good, current meter sensor 2 data by the output of 232 buses 40, data processor 1 by inquiry or interrupt mode from SPI transfer bus chip for driving
HX6 first via serial port data buffer area reading of data, and whether judgment data is reasonable, the unreasonable current meter sensor 2 that then makes of data remeasures, and data rationally then send " OK " order makes current meter sensor 2 be in holding state; Afterwards in order, data processor 1 is by two-way SPI transfer bus chip for driving
HX6 the second road serial ports are gathered the measurement data of nitrate sensor 7, by two-way SPI transfer bus chip for driving
SR15 first via serial ports are gathered the measurement data of water quality instrument sensor 11, by two-way SPI transfer bus chip for driving
SR15 the second road serial ports are gathered the measurement data of dissolved oxygen sensor 16.Then, data processor 1 utilizes the mode read module magnitude of voltage of AD7705 two-way AD conversion chip 42 first via passages by inquiry or interruption, switches to second paths then and reads LM35 temperature sensor 43 temperature values by the mode of inquiring about or interrupt.
After the b of Monitoring and Controlling main website data processor 1 has obtained all appts measurement data, check the dissolved oxygen value of judging wherein, when it during smaller or equal to 2mg/l, reinitialize real-time clock RTC, change the monitoring device frequency of operation to half an hour once, when dissolved oxygen value during, then keep the monitoring device frequency of operation once at one hour greater than 2mg/l.Subsequently, all data that 1 pair of data processor obtains are carried out format conversion, are arranged according to the order of sequence, and fusion is stored to SD storage card 23 after forming a packet.
Simultaneously, data after 1 pair of fusion of data processor are carried out self-defining cryptographic algorithm, before the data encrypted bag being sent to seabed underwater sound communication machine 26, data processor 1 sends " detection " order to seabed underwater sound communication machine 26 earlier, seabed underwater sound communication machine 26 returns the detection data, when data presentation ambient water acoustic environment helps the transmission of the data underwater sound, water quality data after data processor 1 will be encrypted is sent to seabed underwater sound communication machine 26, it again with data transmission to sea underwater sound communication machine 44; When if data presentation ambient water acoustic environment is unfavorable for the transmission of the data underwater sound, data processor 1 will be every 26 " detections " of 5 minutes order seabed underwater sound communication machines once, and the water quality data after will encrypting is sent to seabed underwater sound communication machine 26 or next work arriving constantly.After data processor 1 is finished single work, utilize relay 22 to close the power supply of other modules, and make and oneself be in power-down state again, utilize real-time clock to wait for next work constantly.
Though the utility model with embodiment openly as above; but it is not in order to limit protection domain of the present utility model; any technician who is familiar with this technology, change and the retouching done in not breaking away from design of the present utility model and scope all should belong to protection domain of the present utility model.
Claims (9)
1. an offshore ocean floor hypoxia phenomenon real-time monitoring device is characterized in that: comprise water quality monitoring substation, water quality monitoring controlling center, underwater sound communication and 232 serial communication substation and power brick;
Described water quality monitoring substation comprises digital sensors integration module and analog sensor integration module, the water quality monitoring controlling center comprises data processor and extends out memory module that underwater sound communication and 232 serial communication substations comprise seabed underwater sound communication machine integration module, sea underwater sound communication machine and 232 serial communication modules;
Described data processor by the on-site transfer bus with digital sensors integration module, analog sensor integration module, extend out memory module, seabed underwater sound communication machine integration module is connected, data processor is connected with 232 serial communication modules by 232 buses, and power brick is connected with the water quality monitoring controlling center.
2. offshore ocean floor hypoxia phenomenon real-time monitoring device according to claim 1 is characterized in that: described water quality monitoring substation comprises four digital sensors integration modules and two analog sensor integration modules;
Described four digital sensors integration modules are respectively the integrated module of current meter sensor, the integrated module of nitrate sensor, the integrated module of water quality instrument sensor and dissolved oxygen sensor integration module, their integration mode is identical, comprises separately sensor, RS232 interface, RS232 single channel chip for driving, input optocoupler, output photoelectrical coupler, two-way transmission bus driver chip respectively; Described current meter sensor, nitrate sensor, water quality instrument sensor and dissolved oxygen sensor 232 digital signals separately RS232 interface, RS232 single channel chip for driving, input optocoupler, output photoelectrical coupler, the two-way transmission bus driver chip by separately respectively link to each other with the on-site transfer bus of data processor;
Described two analog sensor integration modules comprise substation supply voltage simulating signal and temperature analog signal integration module, wherein substation supply voltage simulating signal integration module uses the power brick bleeder mechanism to connect the first via passage of two-way AD conversion chip, temperature analog signal integration module serviceability temperature sensor connects second paths of two-way AD conversion chip, and two-way AD conversion chip is integrated with data processor by the on-site transfer bus then.
3. offshore ocean floor hypoxia phenomenon real-time monitoring device according to claim 2 is characterized in that: described water quality monitoring controlling center also comprises reset monitoring circuit, artificial debugging interface, peripheral hardware power control circuit and real-time hour hands circuit; Described peripheral hardware power control circuit comprises triode and relay, and real time clock circuit comprises real-time clock battery and real-time clock crystal oscillating circuit;
The P0.10 pin of described data processor connects power brick by triode, relay, constitutes the peripheral hardware power control circuit; The SSE11 of data processor connects and draws resistance to arrive+3.3V, i.e. the VDD pin of data processor; The Vbat pin of data processor connects the real-time clock battery, and the RTXC1 pin of data processor is connected the real-time clock crystal oscillating circuit with the RTXC2 pin; The RST pin of data processor connects the reset monitoring circuit; The emulated port of data processor connects the artificial debugging interface.
4. offshore ocean floor hypoxia phenomenon real-time monitoring device according to claim 3 is characterized in that: described seabed underwater sound communication machine integration module comprises seabed underwater sound communication machine, RS232 interface, RS232 single channel chip for driving, input optocoupler, output photoelectrical coupler, two-way transmission bus driver chip;
The data communication method of described seabed underwater sound communication machine integration module and water quality monitoring controlling center adopts the on-site transfer bus communication; 232 digital signals of described seabed underwater sound communication machine link to each other with the on-site transfer bus of data processor by RS232 interface, RS232 single channel chip for driving, input optocoupler, output photoelectrical coupler, two-way transmission bus driver chip;
The seabed underwater sound communication machine of described underwater sound communication and 232 serial communication substations and sea underwater sound communication machine carry out data transmission by the underwater sound communication mode;
232 serial communication modules of described underwater sound communication and 232 serial communication substations adopt RS232 two-way chip for driving, the first via signal of this RS232 two-way chip for driving is connected with the UART0 serial ports of data processor, its 232 transfer bus links to each other with DB9 female interface, the second road signal of RS232 two-way chip for driving is connected with the UART1 serial ports of data processor, and its 232 transfer bus links to each other with DB9 male interface.
5. offshore ocean floor hypoxia phenomenon real-time monitoring device according to claim 4 is characterized in that: the integrated module of described current meter sensor, the integrated module of nitrate sensor, the integrated module of water quality instrument sensor and four digital sensors integration modules of dissolved oxygen sensor integration module all adopt independently by the transformation module of the peripheral hardware power control circuit control break-make of data processor controlled and power separately.
6. offshore ocean floor hypoxia phenomenon real-time monitoring device according to claim 5, it is characterized in that: the power module of described water quality monitoring controlling center is divided into separate analog power circuit module and digital power circuit module, and the ground of described analog power circuit module and digital power circuit module is connected by magnetic bead;
Described analog power circuit module is PLL power supply in the data processor sheet by the transformation chip, and the input end of transformation chip is directly from the power taking of power brick interface, and connects shunt capacitance, output termination capacitor, diode, inductance, and output voltage is 3.3V;
Described digital power circuit module is the relay power supply of data processor kernel and I/O mouth and peripheral hardware power control circuit by two-stage transformation chip, the input end of first order transformation chip is directly from the power taking of power brick interface, and connect shunt capacitance, its output termination capacitor, diode, inductance, power to relay, output voltage is 5V, this output connects the input end of second level transformation chip again, the output terminal of second level transformation chip is given data processor kernel and I/O confession electricity, and output voltage is 3.3V.
7. offshore ocean floor hypoxia phenomenon real-time monitoring device according to claim 6 is characterized in that: the 3.3V digital power of the described 3.3V digital power that extends out memory module, two-way transmission bus driver chip, the analog power of two-way AD conversion chip are different with the 3.3V digital power power supply of data processor; Described data processor directly provides power supply from power brick by the transformation chip; Extend out memory module, the two-way transmission bus driver chip relay normally open contact of the peripheral hardware power control circuit of process data processor controlled earlier, provide power supply through independent transformation chip again; Two two-way transmission bus driver chips of four digital sensors integration modules adopt unified transformation chip power supply, by the I/O mouth control break-make of data processor; Extend out and carry out digital-to-analogue with magnetic bead between the analog power of the digital power of memory module, two-way transmission bus driver chip and two-way AD conversion chip and isolate; Temperature sensor is from the relay normally open contact power taking of the peripheral hardware power control circuit of data processor controlled, without the transformation chip.
8. offshore ocean floor hypoxia phenomenon real-time monitoring device according to claim 7, it is characterized in that: described seabed underwater sound communication machine integration module adopts independent transformation module for power supply, the power supply of 232 serial communication modules is powered from the transformation chip output of digital power circuit module, and passes through toggle switch; The transformation module of the transformation module of described seabed underwater sound communication machine integration module, the transformation module of the integrated module of current meter sensor, the integrated module of nitrate sensor, the transformation module of the integrated module of water quality instrument sensor and dissolved oxygen sensor integration module transformation module all adopt voltage stabilizing to isolate the transformation chip.
9. offshore ocean floor hypoxia phenomenon real-time monitoring device according to claim 8, it is characterized in that: described data processor adopts the LPC2138 chip, extend out memory module and adopt the SD storage card, the on-site transfer bus adopts the SPI transfer bus, two-way transmission bus driver chip adopts SC16IS762 two-way SPI transfer bus chip for driving, RS232 single channel chip for driving adopts the MAX221 chip, RS232 two-way chip for driving adopts the MAX232 chip, input, the output photoelectrical coupler adopts the 4N25 photoelectrical coupler, two-way AD conversion chip adopts the AD7705 chip, temperature sensor adopts the LM35 chip, the reset monitoring circuit adopts the CAT809 chip, the artificial debugging interface adopts the JTAG artificial debugging interface of standard 20 pin, the programmable RTC real-time clock that real-time clock adopts data processor inside to carry, the cell voltage of power brick is 7.5-12V, the triode of peripheral hardware power control circuit adopts 9013 triodes, relay adopts the UB2-4.5NU relay, the transformation module of seabed underwater sound communication machine integration module, the transformation module of the integrated module of current meter sensor, the transformation module of the transformation module of the integrated module of nitrate sensor and the integrated module of water quality instrument sensor all adopts the IB10.805S-1W voltage stabilizing to isolate the transformation chip, dissolved oxygen sensor integration module transformation module adopts the IB10.805S-2W voltage stabilizing to isolate the transformation chip, two two-way transmission bus driver chips of digital sensors integration module adopt LM2575-3.3 transformation chip power supply, the analog power circuit module adopts LM2575-3.3 transformation chip, and the digital power circuit module adopts LM2575-5 and G1117 two-stage transformation chip.
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