CN102288258B - System and method for remotely and automatically monitoring ocean sea levels in real time - Google Patents

System and method for remotely and automatically monitoring ocean sea levels in real time Download PDF

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Publication number
CN102288258B
CN102288258B CN 201110125602 CN201110125602A CN102288258B CN 102288258 B CN102288258 B CN 102288258B CN 201110125602 CN201110125602 CN 201110125602 CN 201110125602 A CN201110125602 A CN 201110125602A CN 102288258 B CN102288258 B CN 102288258B
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resistivity
test device
nylon
control unit
central control
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CN102288258A (en
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贾永刚
李红磊
单海龙
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Qingdao Guoke Marine Environmental Engineering Technology Co ltd
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QINGDAO TANHAI ENGINEERING CONSULTATION ACADEMY
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Abstract

The invention discloses a system and a method for remotely and automatically monitoring ocean sea levels in real time. The system comprises an upper computer with a signal receiver, a wave elimination tube with a built-in resistivity measurement device, a central control unit connected through an insulated wire and the resistivity measurement device and provided with a control program, a GPRS (General Packet Radio Service) module connected with the central control unit and provided with an antenna, and a solar power supply device. The resistivity measurement device is composed of pluggable nylon modules and electrode rings between the pluggable nylon modules. The monitoring method comprises the following steps of: selecting the numbers of the nylon modules and the electrode rings according to the change range of a sea level to be tested; fixing the resistivity measurement device formed by inserting and connecting the nylon modules and the electrode rings and the wave elimination tube in the bank, and collecting vertical upward resistivity values circularly and repetitively; and finally, obtaining the sea level information by analyzing the resistivity values. According to the system and method disclosed by the invention, the sea level information can be issued automatically, accurately and continuously in real time; supports are provided for ocean engineering construction, safety monitoring, waterway traffic and the like; and the method is especially applicable to remotely reporting the sea level of an extreme sea condition and the like.

Description

The remote live automatic monitoring system and the method for a kind of ocean tidal level
Technical field
The present invention relates to the remote live automatic monitoring system and the method for a kind of ocean tidal level, monitor automatically, belong to the marine technology field with the remote live of realizing the ocean tidal level.
Background technology
Flux and reflux takes place in seawater under the effect of power to lead tide, the ocean tidal change is being followed the otherness that embodies again on the basis of periodic regularity on the space-time.Tidal level information has material impact to sea-freight, oceanographic engineering, meteorological research etc., has the multiple technologies means to be applied to the monitoring of ocean tidal level at present.Ocean tidal level monitoring instrument commonly used comprises pressure type water level gauge, float-type tide gauge, Acoustic Tide Gauge etc.But variation of temperature can cause density of sea water, buoyancy, the isoparametric variation of sound wave conduction, so can directly influence the measuring accuracy of these instruments, the most frequently used float-type tide gauge also need be provided with tide gauge well, and simplification is poor.Deep day by day along with ocean development all had new requirement to ageing, the simplification of equipment of tidal level monitoring, the accuracy of data etc., and present tidal observation technology unmet demand still.
Summary of the invention
The object of the invention provides the remote live automatic monitoring system and the method for a kind of ocean tidal level, to remedy the above-mentioned deficiency of prior art.
The present invention judges seawater face position according to the variation of resistivity value through in real time, measure the up and down resistivity value in the certain limit of seawater face continuously, automatically, obtains tidal level information, realizes that the remote live of ocean tidal level is monitored automatically.Specifically be to use resistivity test device to gather and send automatically near the resistivity data on the vertical sea in real time, this resistivity data is by the automatic reception of long-range receiving and analyzing device and analyze.According to the significant difference of seawater and air resistivity, can accurately judge seawater-air interface position through software analysis, thereby obtain the seawater face over time, and then obtain ocean tidal level information.
The remote live automatic monitoring system of a kind of ocean tidal level; Comprise the host computer that has signal receiver; It is characterized in that also comprising the wave absorption tube that includes resistivity test device; By the central control unit that control program is housed that insulated conductor is connected with resistivity test device, the GPRS module that has antenna that links to each other with described central control unit, and solar power supply apparatus.
Above-mentioned resistivity test device comprises pluggable cylindric nylon module and 4 electrode retaining collars that are clipped in the adjacent nylon module abutment joint of at least 5 hollows; Each electrode retaining collar is connected with central control unit with insulated conductor respectively, and insulated conductor passes in the pipe of nylon module composition, and vulcanized rubber is built in the back in tube chamber.Said nylon module is a nylon material, and its specification is: external diameter 30～70mm, internal diameter 20～60mm, length 5～100mm.
Consistent in order to guarantee the spacing between the electrode, make the conversion of measuring position and elevation convenient, the thickness of each electrode retaining collar is identical, is 0.5～1mm.
Above-mentioned wave absorption tube is etch-proof organic material, diameter 30～80cm, and thickness 1～3cm, bottom opening, evenly punching on the barrel makes the inside and outside connection of tube, and the aperture is 3～5cm, and punch density is 1～2/dm 2
The resistivity signal that the GPRS module collects resistivity test device through antenna is emitted to the long-range receiving and analyzing device of land, and the utilization upper computer software is differentiated the position on sea in real time automatically, obtains tidal level information.Resistivity test device, wave absorption tube, central control unit, GPRS module, solar power supply apparatus are formed the collection in worksite emitter, and for each energy-dissipating device electric power are provided by solar power supply apparatus.
During use; Above-mentioned resistivity test device is fixed on the wave absorption tube axis; The two vertically is fixed in tidal position, and under the control of central control unit, resistivity test device is gone up the resistivity value of measuring wave absorption tube inland sea water and air the end of from; Data are handled through central control unit and are sent to the GPRS module, are emitted to host computer through antenna; Obtain different seawater face positions constantly, i.e. tidal level information through the host computer analyzing and processing.
A kind of method of utilizing above-mentioned monitoring system that the ocean tidal level is carried out the automatic monitoring of remote live is characterized in that this method may further comprise the steps:
(1) selects nylon module and electrode retaining collar number according to the tidal level variation range in place to be measured, confirm the length of resistivity test device, make the tidal level variation range in the measuring height scope of resistivity test device;
(2) the nylon module is pegged graft each other, and electrode retaining collar is clipped in adjacent two nylon module abutment joints; Pass in the pipe that insulated conductor is formed from the nylon module each electrode retaining collar is connected respectively with central control unit, build tube chamber with vulcanized rubber then, make nylon module, electrode retaining collar, lead become integral body;
(3) above-mentioned resistivity test device is fixed on the wave absorption tube axis, again the wave absorption tube vertically is fixed in bunding tidal undulation zone;
(4) central control unit that above-mentioned lead is connected is positioned on the embankment;
(5) utilize the program of central control unit, make the bottom-up cycle repeats of resistivity test device gather the resistivity value on vertical;
(6) through GPRS module and antenna above-mentioned resistivity value is sent to signal receiver in real time;
(7) through signal receiver data are saved to host computer, utilize the process analysis resistivity value in the host computer and obtain tidal level information.
Obviously, the present invention need not to excavate tide gauge well, by the wave absorption tube metastable seawater-air interface is provided, and the resistivity contrasts of the two is obvious, can accurately reflect seawater face position, and it is little influenced by weather, the hydrology etc.The scene has solar power supply apparatus that electric power is provided, and can realize long-term unattended surveillance.The present invention has combined Radio Transmission Technology, belongs to wireless remote monitoring, and the transmission of data and reception do not receive distance limit.Native system has automatically, accurately, continuously, the characteristics of real-time release tidal level information, can be that oceanographic engineering construction, safety monitoring, navigation channel are current etc. to provide support, to tidal data collections, the distant newspaper of extreme sea condition tidal level etc. particularly practicality.
Description of drawings
Fig. 1 one-piece construction synoptic diagram of the present invention
The structure of Fig. 2 collection in worksite emitter of the present invention and the on-the-spot synoptic diagram of laying.
Fig. 3 resistivity test device structural representation of the present invention.
Fig. 4 data acquisition structured flowchart of the present invention.
Fig. 5 Data Receiving program flow diagram of the present invention.
The tidal level of Fig. 6 the present invention monitoring is curve map over time.
Wherein, 1, resistivity test device, 2, the wave absorption tube, 3, central control unit, 4, antenna; 5, GPRS module, 6, solar power supply apparatus, 7, stationary installation, 8, lead, 9, the hole; 10, electrode retaining collar, 11, the nylon module, 12, signal receiver, 13, host computer.
Embodiment
As shown in Figure 1; The remote live automatic monitoring system of a kind of ocean tidal level; Comprise the host computer 13 that has signal receiver 12, include the wave absorption tube 2 of resistivity test device 1, the central control unit that includes control program 3 that is connected with resistivity test device 1 by insulated conductor 8; The GPRS module 5 that has antenna 4 that links to each other with described central control unit 3, and solar power supply apparatus 6.
Wherein, resistivity test device 1 is fixed in position, axis in the wave absorption tube 2, and central control unit 3 connects through lead 8 and controlling resistance rate measurement mechanism 1 is gathered the resistivity of media that is positioned at wave absorption tube 2; GPRS module 5 is emitted to the resistivity signal of measuring automatically signal receiver 12 and is saved to host computer 13 through antenna 4; Behind host computer 13 analyzing and processing signals, obtain tidal level information, realize the sea up and down automatic measurement, the position, sea of certain limit resistivity data differentiate automatically, the issue of tidal level information.
As shown in Figure 2, resistivity test device 1 vertically is fixed on the bunding tidal undulation zone via stationary installation 7, makes the tidal level variation range in the measuring height scope of resistivity test device 1.
As shown in Figure 3, resistivity test device 1 is cylindrical equipment, comprises plug-in type nylon module 11, is clipped in two electrode retaining collar 10 and insulated conductors 8 between the nylon module.Said nylon module 11 is a nylon material, and its specification is: external diameter 30～70mm, internal diameter 20～60mm; Length 5-100mm, number are 5～501, and nylon module 11 bottoms have boss; The top has the groove that adapts with boss, thereby can plug combination each other; The material of said electrode retaining collar 10 is naval's copper, electroplate, and its specification is: external diameter 31～71mm, internal diameter 27～67mm, thickness 0.5mm, number are 4～500.Pass in the pipe that insulated conductor 8 nylon modules 11 are pegged graft, each electrode retaining collar 10 is connected respectively to central control unit 3, pour into a mould, seal with vulcanized rubber in the tube chamber.
As shown in Figure 2, resistivity test device 1 is covered with wave absorption tube 2, is used to eliminate the seawater face wild effect that causes because of wave breaking, splash etc., in tube, forms the more continuous water surface, is beneficial to resistivity test device 1 and accurately measures.Described wave absorption tube 2 its materials are for having certain intensity and etch-proof organic material, diameter 30～80cm, and thickness 1～3cm, bottom opening is evenly beaten circular hole 9 and is made the inside and outside connection of tube on the barrel, and the aperture is 3～5cm, and the density in hole 9 is 1～2/dm 2
Central control unit 3 tops are fixed with solar power supply apparatus 6, for entire field collection emitting device provides electric energy.
Central control unit 3 can be positioned on the bunding, is connected with resistivity test device 1 through lead 8.Under central control unit 3 controls, the resistivity value on resistivity test device 1 bottom-up cycle repeats collection is vertical, data are sent to signal receiver 12 and host computer 13 through GPRS module 5 and antenna 4.Wherein GPRS module 5 is under the 900MHz/1800MHz network environment, and antenna 4 is the GSM antenna.
Central control unit 3 suitable little, the low in energy consumption single-chip microcomputers of preferred dimension, the resistivity value on the bottom-up circle collection of controlling resistance rate measurement mechanism is vertical; Its workflow is as shown in Figure 4: the single-chip microcomputer fill order at first gets into initialization from SBR, and reads the preset working parameter automatically; Clock module starts subsequently; Central control unit 3 all gets into init state with GPRS module 5, preparation for acquiring with transmit, keep this state until reaching preset acquisition time; Acquisition control device at first inserts four electrode retaining collars 10 of bottommost, measures the resistivity of correspondence position, realizes the resistivity measurement of diverse location then through the electrode conversion; Collection result is through GPRS module 5 and antenna 4 emissions; The circle collection emission process finishes the single-chip microcomputer power cut-off up to acquisition time.
Signal receiver 12 workflows of long-range receiving and analyzing device are as shown in Figure 5: whether at first signal receiver 12 state initialization, the back buffer zone of rechecking Data Receiving automatically have data to exist, and receive data until buffer zone; Buffer data is received and analyzes; Judge whether it comes from the collection in worksite emitter; If not then abandoning and reexamine buffer zone; Until being checked through field data and automatically this data transmission being stored to host computer 13 through the RS232 interface, whether have data exist, receive and preserve all data from the collection in worksite emitter if continuing the inspection buffer zone then; Repeat said process.
The data-signal that receives imports host computer 13 into and stores, and adopts upper computer software that vertical resistivity value is depicted as resistivity curve then and shows.The resistivity that in seawater, records according to electrode retaining collar compares homogeneous; And produce the characteristics of sudden change in the resistivity that the gas-liquid intersection records; Automatically differentiate the position of the electrode retaining collar of the rate sudden change that has a resistance by upper computer software; Be seawater face position, the applied statistics analysis software is eliminated the water surface variation that wave causes automatically, finally exports tidal level information.
The principle of measurement mechanism measured resistivity is following:
According to Fig. 3, one group of Wenner device is made up of four adjacent electrodes, is called A, M, N, the B utmost point respectively, and wherein A, B are transmitting electrode, and M, N are potential electrode, measures the medium electric conductivity between M, the N electrode, and calculated resistance rate ρ is shown in formula (1), (2).After one group of Wenner device finishing collecting, tolling measurement successively makes progress.
ρ = K · ΔU MN I - - - ( 1 )
K = π · AM · AN MN - - - ( 2 )
In the formula, K is an electrode coefficient, Δ U MNBe the voltage between potential electrode, I is the strength of current between transmitting electrode, and ρ is the apparent resistivity value of medium, and AM, AN, MN are respectively the distance between counter electrode.
When tidal level rises to certain position; During the bottom-up rolling of Wenner device; At first measure the resistivity value of bottom seawater in the wave absorption tube, when a certain group transmitting electrode B just expose with the water surface expose with air in the time owing to can't form current return between electrodes of A, B; Then potential electrode M, N can't obtain the seawater resistivity value, and the resistivity signal of collecting this moment will occur obviously unusual.Signal obtains the tidal level data after emission, reception, analyzing.
Embodiment
Be example with 300 electrodes below, concrete operations of the present invention are following:
The stone old man carries out embodiment in the marine site in Qingdao, and this area belongs to regular semi-diurnal tides, about 2 meters of tidal ranges.Testing employed resistivity test device length is 3 meters, satisfies the tidal level variation range; Electrode retaining collar spacing 1cm is 0.5cm to the judgement precision of seawater-air interface, and promptly electrode separation is half the.Select 301 nylon modules and 300 electrode retaining collars; The electrode retaining collar that is welded with insulated conductor is socketed in the side that the nylon module has boss; The groove side of second the nylon module of pegging graft on top then; Make the electrode retaining collar lock ring in the nylon intermodule, repeat socket until whole completion, all leads pass in the nylon module tube chamber that forms.Compressing the back pours into a mould vulcanized rubber and carries out sealing and fixing and make electrode retaining collar, nylon module, lead become integral body in pipe.After rubber solidifies whole leads are inserted central control unit successively.Resistivity test device is fixed along wave absorption tube axis, then the two vertically is fixed in the tidal undulation region of variation jointly.Parameters such as frequency acquisition are set at central control unit; Central control unit is at first connected the 1st～the 4th electrode retaining collar and is formed the Wenner device during work; Make the 1st and the 4th electrode retaining collar power supply, the 2nd and the 3rd measuring voltage and electric current, the result obtains resistivity value after amplifying, filter, changing; Upwards connect 4 electrode retaining collars again since the 2nd electrode retaining collar then, repeated acquisition is until last 4 electrode retaining collars.The resistivity data that at every turn records all imports the GPRS module into and is emitted to long-range receiving and analyzing device through antenna.According to preset frequency acquisition, the interval certain hour repeats said process once more after the loop ends from the bottom.
Host computer is analyzed the Monitoring Data of receiving, obtains resistivity curve figure.This zone seawater resistivity value that obtains through resistivity test device is between 0.25 Ω .m～0.3 Ω .m; And air resistivity is very big; Because of the resistivity contrasts of seawater and air obvious; There is significantly sudden change position on the resistivity curve,, analyzes and obtain seawater face position according to sudden change position elevation.Through constantly measuring the sea over time, and then obtain tidal level information.The measurement result of part tidal level elevation is as shown in Figure 6 in certain flux and reflux process, and the fluctuation tide lasted about 6 hours.Obviously, the length of this monitoring system scalable measurement mechanism can be installed on different waters and sea conditions, for ocean tidal level information gathering and distant newspaper provide support.

Claims (7)

1. the remote live automatic monitoring system of an ocean tidal level comprises the host computer (13) that has signal receiver (12), has the GPRS module (5) of antenna (4), and solar power supply apparatus (6); It is characterized in that also comprising the wave absorption tube (2) that includes resistivity test device (1); By the central control unit that control program is housed (3) that insulated conductor (8) is connected with resistivity test device (1), this central control unit (3) is connected with described GPRS module (5);
Above-mentioned resistivity test device (1) comprises pluggable cylindric nylon module (11) and 4 electrode retaining collars (10) that are clipped in adjacent nylon module (11) abutment joint of at least 5 hollows;
The specification of above-mentioned nylon module (11) is: external diameter 30～70mm, internal diameter 20～60mm, length 5-100mm.
2. monitoring system as claimed in claim 1 is characterized in that having built vulcanized rubber in the tube chamber that above-mentioned nylon module (11) forms.
3. monitoring system as claimed in claim 1, the thickness that it is characterized in that above-mentioned electrode retaining collar (10) is 0.5～1mm.
4. monitoring system as claimed in claim 1, the material that it is characterized in that above-mentioned electrode retaining collar (10) is naval's copper, electroplate, specification is: external diameter 31～71mm, internal diameter 27～67mm, thickness 0.5mm.
5. monitoring system as claimed in claim 1 is characterized in that above-mentioned wave absorption tube is etch-proof organic material, diameter 30～80cm, and thickness 1～3cm, bottom opening, evenly punching on the barrel makes the inside and outside connection of tube, and the aperture is 3～5cm, and punch density is 1～2/dm 2
6. one kind is utilized the said monitoring system of claim 1 to the automatic method of monitoring of ocean tidal level remote live, it is characterized in that this method may further comprise the steps:
(1) selects nylon module and electrode retaining collar number according to the tidal level variation range in place to be measured, confirm the length of resistivity test device, make the tidal level variation range in the measuring height scope of resistivity test device;
(2) the nylon module is pegged graft each other, and electrode retaining collar is clipped in adjacent two nylon module abutment joints; Pass in the pipe that insulated conductor is formed from the nylon module each electrode retaining collar is connected respectively with central control unit, build tube chamber with vulcanized rubber then, make nylon module, electrode retaining collar, lead become integral body;
(3) above-mentioned resistivity test device is fixed on the wave absorption tube axis, again the wave absorption tube vertically is fixed in bunding tidal undulation zone;
(4) central control unit that above-mentioned lead is connected is positioned on the embankment;
(5) utilize the program of central control unit, make the bottom-up cycle repeats of resistivity test device gather the resistivity value on vertical;
(6) through GPRS module and antenna above-mentioned resistivity value is imported into and be sent to signal receiver;
(7) through signal receiver data are saved to host computer, utilize the handling procedure in the host computer to analyze resistivity value and obtain tidal level information.
7. monitoring method as claimed in claim 6; The analysis resistivity value that it is characterized in that above-mentioned steps 7 obtains tidal level information; Comprise that adopting upper computer software that vertical resistivity value is depicted as resistivity curve shows, by the automatic position of differentiating the electrode retaining collar of the rate sudden change that has a resistance of upper computer software, i.e. seawater face position; The applied statistics analysis software is eliminated the water surface variation that wave causes automatically, finally exports tidal level information.
CN 201110125602 2011-05-16 2011-05-16 System and method for remotely and automatically monitoring ocean sea levels in real time Expired - Fee Related CN102288258B (en)

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CN103557902B (en) * 2013-10-30 2017-02-15 肖英 Remote-monitoring water level automatic measuring device
CN104318504B (en) * 2014-11-04 2017-06-23 罗普特（厦门）科技集团有限公司 Seashore outdoor bathing place ebb warning system
CN105258765A (en) * 2015-09-08 2016-01-20 安徽理工大学 Dam body hydrostatic level in situ automatic monitoring system and method
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CN107421601B (en) * 2017-05-26 2019-06-28 自然资源部第二海洋研究所 Intelligent remote real-time monitoring system and its monitoring method to ocean tidal level
CN107269458B (en) * 2017-06-14 2024-01-23 湖南人文科技学院 Method for controlling pontoon in wave energy power generation device to track sea level
CN110346415B (en) * 2019-06-20 2021-09-28 河海大学 Optical and in-situ electricity-based pile local scouring monitoring system
CN110361069A (en) * 2019-08-15 2019-10-22 上海交通大学 A kind of measurement method and device of wave section
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