CN106501169A - The early warning system of the anti-electrolytic etching of benthoscope and operation method - Google Patents
The early warning system of the anti-electrolytic etching of benthoscope and operation method Download PDFInfo
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Abstract
The invention discloses a kind of early warning system of the anti-electrolytic etching of benthoscope and operation method, system includes early warning circuit；Early warning circuit includes electrolytic etching current detection circuit；Electrolytic etching current detection circuit includes accessory power supply, high-power resistance Zener diode and ammeter；The positive pole of accessory power supply is connected to the earth terminal of current supply circuit；High-power resistance and ammeter are in series between the negative pole and shell of accessory power supply；Stabilivolt is parallel to ammeter two ends；When electrically isolating between current supply circuit and shell, the resistance of the equivalent isolation resistance between current supply circuit and shell is infinity；When electrolytic etching is produced between current supply circuit and shell, then the resistance of equivalent isolation resistance is electrically connected between shell and current supply circuit between 0 and infinity.Of the invention simple effective, interference is not produced to benthoscope electrical system, be suitable for the monitoring of benthoscope electrolytic etching.
Description
Technical field
The present invention relates to anti-electrolysis corrosion technology, and in particular to a kind of early warning system of the anti-electrolytic etching of benthoscope and
Operation method.
Background technology
Benthoscope is the underwater robot that a class is powered using DC source.Modern benthoscope system is very multiple
Miscellaneous, a lot of equipment and circuit are directly exposed in briny environment, including extraneous factors such as temperature, humidity, salinity and electrochemistry all
Can submersible be caused to corrode.In the prior art, generally by using more corrosion-resistant material, improving the handss such as manufacturing process
Section, to delay to corrode, reduces the harm that corrosion brings.
Bigger to benthoscope harm is electrolytic etching.The electrolytic etching of submersible refers to electrical system circuit or sets
Larger potential difference is formed by submersible shell and sea water for because of reasons such as pressure distortion, humidity, leakage and electric overlap joints, and
Lasting high current is produced, strong electrolytic etching is caused to circuit and equipment.
Test shows, serious electrolytic etching within the short time of several tens minutes can finger thickness copper rod corrosion dangerous
To the greatest extent.For common electrical equipment, electrolytic etching can cause device damage, affect submersible normal function.Resistance to manned capsule etc.
For ballasting, housing can be affected its voltage endurance capability by electrolytic etching, reduce its service life.If it is rotten to there is electrolysis in crossing cabin part
Erosion, extraneous high pressure sea water are easily penetrated in cabin, and its consequence is hardly imaginable.
Monitor in real time is carried out to the electrolytic etching degree of benthoscope, and timely early warning fault message is rotten to producing electrolysis
The measures such as isolation are taken in the loop of erosion, prevent corrosion aggravation, can play a part of to provide for a rainy day.The anti-electrolysis of benthoscope is rotten
The early warning system of erosion is the indispensable ingredient of modern benthoscope.
Content of the invention
For the deficiencies in the prior art, the invention discloses the early warning system and fortune of a kind of anti-electrolytic etching of benthoscope
Row method.
Technical scheme is as follows：
A kind of early warning system of the anti-electrolytic etching of benthoscope, including benthoscope shell and multiple current supply circuits；
Current supply circuit both ends of power is parallel with multigroup load；It is characterized in that：Also include early warning circuit；The early warning circuit includes being electrolysed
Corrosion current detects circuit；The electrolytic etching current detection circuit include accessory power supply, high-power resistance Zener diode and
Ammeter；The positive pole of accessory power supply is connected to the earth terminal of current supply circuit；It is in series between the negative pole and shell of accessory power supply big
Power resistor and ammeter；Stabilivolt D is parallel to electric current Table A two ends；When electrically isolating between current supply circuit and shell, power supply
The resistance of the equivalent isolation resistance between loop and shell is infinity；When generation electrolytic etching between current supply circuit and shell,
Then the resistance of the equivalent isolation resistance is electrically connected between shell and current supply circuit between 0 and infinity.
Its further technical scheme is that early warning circuit includes power circuit, single-chip microcomputer and is connected to many on single-chip microcomputer
Group channel selection circuit；The electrolytic etching current detection circuit is connected with single-chip microcomputer；Multigroup channel selection circuit with multiple
Current supply circuit is corresponded, and each channel selection circuit is controlled its corresponding current supply circuit and connect with electrolytic etching current detection circuit
Logical, then single-chip microcomputer is detected to the electric current of this current supply circuit；Single-chip microcomputer is to the electricity measured by electrolytic etching current detection circuit
Stream carries out data analysiss and computing；Power circuit provides working power for each circuit in system.
Its further technical scheme is, the power circuit include power supply, the first isolating chip, blood pressure lowering chip,
Second isolating chip and voltage stabilizing chip；Power supply includes 24V DC voltages and battery；The type of the first isolating chip described in first
Number it is FKS-2W, the input pin of the first isolating chip accesses 24V DC voltages, the output pin output of the first isolating chip
12V DC voltages；Model RT7272 of blood pressure lowering chip, the input pin of blood pressure lowering chip access battery and 12V DC voltages, drop
The switched pins output 5V DC voltages of pressure chip；Model IBS-1W of the second isolating chip, the input of the second isolating chip
Pin accesses 5V DC voltages, and the input pin output 9V DC voltages of the second isolating chip, used as accessory power supply；Voltage stabilizing chip
Model 1117, the input pin of voltage stabilizing chip accesses 5V DC voltages, the output pin output 3.3V direct currents of voltage stabilizing chip
Voltage is to single-chip microcomputer.
Its further technical scheme is that the channel selection circuit adopts the optical relay conduct of model AQW214A
Passage gating switch to be checked；First pin and the 3rd pin of optical relay are connected to the two-way outfan of single-chip microcomputer；Light
The second pin of relay and the 4th pin are connected to the earth terminal of microcontroller power supply；5th pin of optical relay or the 7th
Pin is connected to passage to be checked all the way；6th pin of optical relay and the 8th pin Pin are connected to accessory power supply positive pole.
Its further technical scheme is also to include electrolytic current detection circuit；The electrolytic current detection circuit includes
Model ISO-A8-P1-O4 analog quantity Isolation Amplifier Module, the input pin of Isolation Amplifier Module are connected to optical relay, will
The current signal exported by optical relay is isolated and is amplified, and is converted into voltage signal, and the output of Isolation Amplifier Module is drawn
Foot is connected to the AD sense channels of single-chip microcomputer.
Its further technical scheme is, Zener diode be connected to Isolation Amplifier Module input and earth terminal it
Between；Also include that high-power resistance, high-power resistance are connected in electrolytic current detection circuit.
Its further technical scheme is that the single-chip microcomputer is the model based on 32 Cortex-M3
The single-chip microcomputer of STM32F103RBT6.
Its further technical scheme is that early warning circuit also includes the serial communication circuit for being connected to single-chip microcomputer；The string
Mouth communicating circuit includes the RS-485 transceivers of model ADM2687E of AD companies.
A kind of operation method of the early warning system based on the anti-electrolytic etching of above-mentioned benthoscope, early warning system also set up
There is display floater, information display lamp, on and off switch, band switch are installed on display floater；The reading end of ammeter is installed on
On display floater；
Band switch control passage selection circuit；Optional passage includes each current supply circuit, automatic detecting pattern and sky
Shelves pattern；Information display lamp has multiple, corresponds to each passage respectively, and when passage is gated by band switch, its corresponding informance refers to
Show that lamp is lighted；
When on and off switch is connected, system default enters automatic detecting pattern；Single-chip microcomputer enters to multigroup channel selection circuit
Row timing controlled, allows which to circulate break-make successively, and all for submersible current supply circuit timesharing are accessed electrolytic etching current detection circuit；
Current loop then has electric current to produce in the event of electrolytic etching, and ammeter shows the electrolytic etching of current institute's sense channel in real time
Electric current, provides intuitively data foundation for driver；Electric current through conversion, isolation and amplifies, and produces voltage signal and is input into list
Piece machine, single-chip microcomputer are through calculating and filtering, the control system that testing result is real-time transmitted to submersible, aobvious for control system
Show, preserve and decision-making；
When submersible is operated, by rotating band switch, select to enter automatic detecting pattern, manual detection mode
Or neutral mode；
When manual detection mode is entered, by rotating band switch, the electrolytic etching electric current of a certain special modality is entered
Row detection；
When neutral mode is entered, then stop detection.
The method have the benefit that：
The present invention passes through for current supply circuit ground terminal to introduce 9V regulated power supplys, makes current supply circuit that there is a lower reference electricity
Flat, there is overlap joint or leak in current supply circuit arbitrary node to shell, when producing electrolytic etching, all can form electric current by 9V power supplys
Path, the size for measuring electric current can assess the electrolytic etching degree of current current supply circuit, send early warning information, taken in time
Effect measure, prevents failure from further expanding.Accessory power supply method is simply effective, benthoscope electrical system will not be produced dry
Disturb, be highly suitable for the monitoring of benthoscope electrolytic etching.Rotten based on the anti-electrolysis of the benthoscope designed by the method
The early warning system circuit of erosion is simple, and seldom, an accessory power supply can detect the electrolysis of all current supply circuits of submersible to components and parts
Corrosion, rapid sensitive, and there is no detection dead band.Unique band switch form, it is possible to achieve unlimited number of current supply circuit
Switching.System versatility is good, is used directly for carrying out early warning to the anti-electrolytic etching of any benthoscope.
Description of the drawings
Fig. 1 is the anti-electrolytic etching early warning system block diagram of benthoscope.
Principle schematics of the Fig. 2 for electrolytic etching current detection circuit.
Fig. 3-1 is the block diagram of power circuit.
Fig. 3-2 is the circuit connection diagram of power supply.
Fig. 3-3 is the circuit connection diagram of the first isolating chip.
Fig. 3-4 is the circuit connection diagram of blood pressure lowering chip.
Fig. 3-5 is the circuit connection diagram of the second isolating chip.
Fig. 3-6 is the circuit connection diagram of voltage stabilizing chip.
Fig. 4-1 is the schematic diagram of channel switching circuit.
Fig. 4-2 is the circuit diagram of optical relay.
Fig. 4-3 is the schematic diagram of electrolytic current detection circuit.
Fig. 5 is the schematic diagram of single-chip microcomputer.
Fig. 6 is the schematic diagram of serial communication circuit.
Specific embodiment
Benthoscope includes benthoscope shell and multiple current supply circuits.Each current supply circuit both ends of power is parallel with
Multigroup load.Each current supply circuit, in the detection, all as a selector channel.
Fig. 1 is the anti-electrolytic etching early warning system block diagram of benthoscope.As shown in figure 1, the anti-electrolytic etching of benthoscope
Early warning system include early warning circuit and display floater.
Early warning circuit includes single-chip microcomputer, the channel selection circuit being connected on single-chip microcomputer and electrolytic etching current detecting electricity
Road.Also include power circuit.
Single-chip microcomputer carries out data analysiss and computing.Power circuit provides working power for each circuit in system.Passage is selected
Select circuit have multigroup, with current supply circuit correspond.Its corresponding current supply circuit is accessed single-chip microcomputer by every group of channel selection circuit,
So that single-chip microcomputer is detected to the electric current of this passage.Electrolytic etching current detection circuit be installed on shell and current supply circuit it
Between, whether there is electric current to flow through between detection shell and each current supply circuit.
Also include serial communication circuit, be connected to single-chip microcomputer, for the control system of system of the present invention and submersible
Implement communication between system.
Early warning circuit also includes battery voltage detection circuit and voltage detection circuit,
In order to easy to operate, early warning system is additionally provided with display floater, is provided with information display lamp, power supply on display floater
Switch, band switch；The reading end of ammeter is also installed on display floater.
Principle schematics of the Fig. 2 for electrolytic etching current detection circuit.As shown in Fig. 2 benthoscope includes depth
Extra large submersible shell and multiple current supply circuits.Each current supply circuit power supply V1 two ends are parallel with multigroup load Z1～Zn.
Also include electrolytic etching current detection circuit, electrolytic etching current detection circuit includes accessory power supply V2, high-power
Resistance R2, electric current Table A and stabilivolt.The positive pole of accessory power supply V2 is connected to the earth terminal of current supply circuit.Accessory power supply V2's is negative
High-power resistance R2 and electric current Table A is in series between pole and shell.Reveal or overlap when submersible power positive end and to shell, lead to
Excessive power resistance carries out partial pressure, protects electrolytic etching current detection circuit.Stabilivolt D is parallel to electric current Table A two ends.
When electrically isolating between current supply circuit and shell, equivalent isolation resistance R+, R- between current supply circuit and shell,
The resistance of Rx is infinity, i.e., equivalent to open circuit between current supply circuit and shell, now electrolytic etching will not occur, and power
Loop, shell, electrolytic etching current detection circuit can not form complete loop, so electrolytic etching current detection circuit is without electricity
Stream.
Once the positive and negative terminal of current supply circuit power supply V1 or be parallel to multigroup load Z1 at current supply circuit power supply V1 two ends～
The arbitrary node of end points Power+ to the Power- in the arbitrary node in Zn, i.e. Fig. 1 circuits is overlapped to shell or sea water is revealed,
Then can produce electrolytic etching between current supply circuit and shell, and now the resistance of equivalent isolation resistance R+, R-, Rx 0 and infinite
Between big, it is electrically connected between shell and current supply circuit.Then current supply circuit, equivalent isolation resistance R+, R-, Rx, shell, electrolysis are rotten
Erosion current detection circuit can form complete loop, will be produced by accessory power supply V2 in electrolytic etching current detection circuit
Electric current.Electrolytic etching degree is bigger, and speed is faster, then the electric current for producing is bigger.By the detection to size of current, it is possible to sentence
The degree of disconnected current loop electrolytic etching, is adopted remedial measures in time.
In the present embodiment, accessory power supply V2 is 9V regulated power supplys.
Fig. 3-1 is the block diagram of power circuit.As shown in figure 3-1, power circuit include the first isolating chip, blood pressure lowering chip,
Second isolating chip and voltage stabilizing chip.Power supply includes 24V DC sources and battery.24V DC sources are isolated by first
Chip, blood pressure lowering are 12V.Battery and 12V DC sources are input into blood pressure lowering chip, and voltage is reduced to 5V by blood pressure lowering chip, and 5V is straight afterwards
Stream voltage exports 9V DC voltages by the second isolating chip, as boost voltage, while 5V DC voltages pass through voltage stabilizing core
Piece, output 3.3V direct voltage outputs are to single-chip microcomputer.
Schematic diagrams of Fig. 3-2～Fig. 3-6 for the various pieces of power circuit.
Fig. 3-2 is the circuit connection diagram of power supply.The power supply of the system is 24V DC sources, is also associated with electricity
Pond, battery are signal source battery and emergency cell on submersible, can be directly system power supply in the event of a power failure.In Fig. 1
Battery voltage detection circuit and voltage detection circuit respectively battery herein and power supply voltage can be detected.
Its principle is common prior art, no longer describes in detail.
Fig. 3-3 is the circuit connection diagram of the first isolating chip.First isolating chip model FKS-2W, its input pin are led to
Binding post P2 is crossed, the binding post P1 shown in Fig. 3-2 is accessed, 24V voltages are accessed, output pin exports 12V voltages.First every
Off-chip piece will give system power supply after 24V isolated from power, and this is in order to when road 24V current supply circuits are detected, it is to avoid be short-circuited
Dangerous.
Fig. 3-4 is the circuit connection diagram of blood pressure lowering chip.In the present embodiment, model RT7272 of blood pressure lowering chip, blood pressure lowering
The input pin of chip accesses 12V voltages by port Power, the port Power being connected in Fig. 3-3 in Fig. 3-3,
The switched pins output 5V voltages of blood pressure lowering chip.
On the one hand blood pressure lowering chip is that I-V analog isolations module and ammeter provide power supply, on the other hand passes through voltage stabilizing chip
Produce 3.3V voltages power supply is provided for single-chip microcomputer.The blood pressure lowering chip of model RT7272 be a efficiently, high power, Width funtion defeated
Enter, voltage stabilizing output module.Its input voltage range, from 4.5V to 36V, can be system while ensureing that system voltage changes
Stable running voltage is provided.
Fig. 3-5 is the circuit connection diagram of the second isolating chip.Model IBS-1W of the second isolating chip, its input pin
The 5V DC voltages exported by blood pressure lowering chip are accessed, its output pin output 9V DC voltage, used as electrolytic etching current detecting
Accessory power supply V2 in circuit.As system Faradaic current is very small, external interference is received easily, therefore using the second isolated core
Piece produces the 9V voltages after isolation, used as accessory power supply, it is ensured that produce stable Faradaic current.
Fig. 3-6 is the circuit connection diagram of voltage stabilizing chip.The model 1117 of voltage stabilizing chip, its input input blood pressure lowering chip
The 5V DC voltages for being exported, its output pin output 3.3V DC voltage, power to single-chip microcomputer.
Fig. 4-1～4-3 is the schematic diagram of the various pieces of channel selection circuit.
There are multiple current supply circuits in system, if each current supply circuit is used as a selector channel, anti-electrolytic etching
The method of work of early warning system is that all channel cycles gating is examined in by single-chip microcomputer timing；Or the selection according to driver,
Special modality is gated.
The method that a certain passage is gated is that the earth terminal of the current supply circuit power supply V1 of the passage is connected to accessory power supply
The positive pole of V2, and shell and electrolytic etching current detection circuit is also turned on, current supply circuit that will be to be detected is rotten by being electrolysed
Erosion current detection circuit is connected to shell.Electric current will be produced in electrolytic etching current detection circuit now, by judging detection electricity
The size of stream can determine whether the passage electrolytic etching degree.
Fig. 4-1 is the schematic diagram of channel switching circuit.Optical relay of the gating of passage using model AQW214A, should
Relay has two contacts, and small volume is low in energy consumption, is easy to computer drives, and the only leakage current of 1uA, even if to this
The detection of micro-current does not result in impact yet.Shown in Fig. 4-1 is a part for channel switching circuit, is connected to two light relays
Device,
Fig. 4-2 is the circuit diagram of optical relay, and first pin and the 3rd pin of optical relay are two contacts
Control end, by the direct output control of single-chip microcomputer；Its 5th pin and the 7th pin are the inputs of two contacts, connect each respectively
Passage to be checked, i.e. each optical relay can be responsible for that two-way passage to be checked is respective to be turned on or off；Its 6th pin and
8th pin is the outfan of two contacts, and the output of all contacts all accesses the positive terminals of accessory power supplys.Single-chip microcomputer according to
The selection of panel band switch, calculates the passage of current selection, controls corresponding relay contact conducting, connects passage to be checked
Enter the anode of accessory power supply, by passage detection circuit for access to be checked.Using the benefit of this small-sized optical relay it is, if circuit
Board space is allowed, and can meet the detection requirement of all passages of submersible.
In the present embodiment, system has 16 tunnels passage to be checked, is therefore alternatively switched using 8 optical relays.
Fig. 4-3 is the schematic diagram of electrolytic current detection circuit.In order to reduce the consumption of accessory power supply, electrolytic etching electric current is examined
The detection electric current very little that slowdown monitoring circuit is produced, is microampere order.In order to improve accuracy of detection and reliability, electrolytic current detection circuit
In employ model ISO-A8-P1-O4 analog quantity Isolation Amplifier Module along source company, its input pin is connected to light relay
Device, current signal is isolated and is amplified, be converted into voltage signal, and its outfan is connected to the AD sense channels of single-chip microcomputer,
Ammeter is in series with its earth terminal.Its input range 0-2mA, exports 0-5V.The analog quantity Isolation Amplifier Module is to auxiliary electricity
Can achieve 3000VDC tri- to isolate between source, analog input and output, it is ensured that the reliability of detection.
In addition, in order to prevent submersible 24V or 110V etc. from producing leakage between power positive end and shell, causing to detect electric current
Very big, circuit is damaged, electrolytic current detection circuit additionally uses protective measure, i.e., in the input of analog quantity Isolation Amplifier Module
Zener diode D2 is connected with and earth terminal between, when power positive end produces shell overlap joint or reveals, causes to detect electric current liter
Gao Shi, the Zener diode D2 in parallel with detection input carry out clamper to voltage, it is ensured that detection electric current is put in analog quantity isolation
In the range of big module is allowed, while Zener diode D2 is shunted, current drain is fallen by simultaneously high-power resistance.
Also include processor circuit.Processor circuit is the core of anti-electrolytic etching early warning system, including based on 32
The STM32F103RBT6 single-chip microcomputers of Cortex-M3, Fig. 5 are the schematic diagrams of single-chip microcomputer.Each pin designations in control Fig. 5, can will be
The various pieces of system are connected on single-chip microcomputer, the method for attachment of pin, can also refer to the technical manual of single-chip microcomputer, and here is no longer
Repeat.The single-chip microcomputer has abundant peripheral hardware, can achieve low-power consumption mode, can realize online programming and debugging.Its built-in 2
12 A/D converters, sampling time most short need 1us, eliminate single A/D conversion chips, so as to simplify circuit, improve
System reliability.Processor circuit completes the functions such as A/D conversions, Filtering Processing, logical operationss and information output.
Early warning circuit also includes the serial communication circuit for being connected to single-chip microcomputer.Fig. 6 is the schematic diagram of serial communication circuit.See
The data such as Faradaic current will be passed to control system and show and protect with control system real-time communication by Fig. 6, system of the present invention
Deposit, it is completely isolated that this requires anti-electrolytic etching early warning system to accomplish with control system, otherwise when early warning system is electrolysed corruption in itself
When losing larger, control system electrolytic etching can be caused to strengthen, extreme difficulties are brought to troubleshooting effort.Therefore anti-electric in guarantee
While solution corrosion early warning system isolated from power, to also ensure that serial communication will also be isolated.Serial communication circuit adopts AD companies
ADM2687E type RS-485 transceivers, the chip can achieve 5000V signals and isolated from power.When submersible electric power system disconnects
When, 9V reserve batteries start to power, and now need not communicate with control system, and serial communication circuit power supply is disconnected by computer,
Reduce system power dissipation.
When the system works, it is divided into three kinds of mode of operations：Automatic detecting pattern, manual detection mode and neutral mode.Aobvious
Show panel band switch can be unlimited circulation rotating, operator by rotate band switch, control passage selection circuit,
Channel selecting is carried out, each current supply circuit for the alternatively passage being mentioned above, automatic detecting pattern and neutral gear mould is removed
Formula is also processed respectively as a passage, and operator only need to switch clockwise or counterclockwise, it is possible in automatic mold
Switch between formula, neutral gear and each sense channel.Information display lamp can show currently selected passage in real time.Opened according to wave band
The suitable counter clockwise direction of rotation is closed, passage is switched over from left to right or from right to left accordingly.
Automatic detecting pattern is to one group of channel selection circuit timing controlled by single-chip microcomputer, allows which to circulate break-make successively,
All for submersible current supply circuit timesharing are accessed electrolytic etching current detection circuit, current loop, will in the event of electrolytic etching
Electric current generation is had, digital ammeter shows the electrolytic etching electric current of current detection passage in real time, provides intuitively for driver
Data foundation.Electric current through conversion, isolation and amplifies, and produces the suitable voltage signal for being suitable for monolithic machine testing, single-chip microcomputer
Through calculating and filtering, testing result is real-time transmitted to underwater vehicle control system, is shown for control system, preserved and decision-making.
Reserve battery is mounted with circuit boards, when needing to carry out malfunction elimination, can be by whole for submersible electric power system power-off, by standby
It is that early warning system is powered with battery, it is ensured that malfunction elimination is smoothed out.
The system operation method is：Automatic detecting pattern is defaulted as after system start-up, and submersible is owned by computer timing
Channel cycle switching accesses electrolytic etching current detection circuit, and ammeter shows the electrolytic etching electricity of current detection passage in real time
Stream, provides intuitively data foundation for driver.Electrolytic etching electric current through conversion, isolation and amplifies, and is adopted by single-chip microcomputer
Collection, and calculated and filtered, by serial communication circuit, testing result is real-time transmitted to underwater vehicle control system, for latent
Hydrophone control system shows, preserves and decision-making.
Driver then can be switched over by band switch, display surface if it is desired to persistently detect to a certain special modality
Plate has corresponding passage display lamp to be shown.
Of the invention simple effective, interference will not be produced to benthoscope electrical system, be highly suitable for deep sea diving
The monitoring of device electrolytic etching.Simple, first device based on the anti-electrolytic etching early warning system circuit of benthoscope designed by the method
Seldom, an accessory power supply can detect the electrolytic etching of all current supply circuits of submersible, rapid sensitive to part, and there is no detection
Dead band.Unique band switch form, it is possible to achieve the switching of unlimited number of current supply circuit.System versatility is good, Ke Yizhi
Connect for carrying out early warning to the anti-electrolytic etching of any benthoscope.
Above-described is only the preferred embodiment of the present invention, the invention is not restricted to above example.It is appreciated that this
Art personnel directly derive without departing from the spirit and concept in the present invention or associate other improvement and become
Change, be considered as being included within protection scope of the present invention.
Claims (9)
1. the early warning system of the anti-electrolytic etching of a kind of benthoscope, it is characterised in that including benthoscope shell and multiple
Current supply circuit；Current supply circuit both ends of power is parallel with multigroup load；It is characterized in that：Also include early warning circuit；The early warning electricity
Road includes electrolytic etching current detection circuit；The electrolytic etching current detection circuit includes that accessory power supply, high-power resistance are steady
Pressure diode and ammeter；The positive pole of accessory power supply is connected to the earth terminal of current supply circuit；The negative pole and shell of accessory power supply it
Between be in series with high-power resistance and ammeter；Stabilivolt D is parallel to electric current Table A two ends；When electrical between current supply circuit and shell
During isolation, the resistance of the equivalent isolation resistance between current supply circuit and shell is infinity；When product between current supply circuit and shell
Electrolytic etching is given birth to, then the resistance of the equivalent isolation resistance electrically connects between shell and current supply circuit between 0 and infinity
Connect.
2. the early warning system of the anti-electrolytic etching of benthoscope as claimed in claim 1, it is characterised in that early warning circuit includes
Power circuit, single-chip microcomputer and the multigroup channel selection circuit being connected on single-chip microcomputer；The electrolytic etching current detection circuit with
Single-chip microcomputer is connected；Multigroup channel selection circuit is corresponded with multiple current supply circuits, and it is right that each channel selection circuit controls which
The current supply circuit that answers is connected with electrolytic etching current detection circuit, then single-chip microcomputer is detected to the electric current of this current supply circuit；Single
Piece machine carries out data analysiss and computing to the electric current measured by electrolytic etching current detection circuit；Power circuit be system in each
Circuit provides working power.
3. the early warning system of the anti-electrolytic etching of benthoscope as claimed in claim 2, it is characterised in that the power circuit
Including power supply, the first isolating chip, blood pressure lowering chip, the second isolating chip and voltage stabilizing chip；Power supply includes 24V direct currents
Voltage and battery；Model FKS-2W of the first isolating chip described in first, the input pin access 24V of the first isolating chip are straight
Stream voltage, the output pin output 12V DC voltages of the first isolating chip；Model RT7272 of blood pressure lowering chip, blood pressure lowering chip
Input pin access battery and 12V DC voltages, the switched pins output 5V DC voltages of blood pressure lowering chip；Second isolating chip
Model IBS-1W, the input pin of the second isolating chip accesses 5V DC voltages, and the input pin of the second isolating chip is defeated
Go out 9V DC voltages, as accessory power supply；The model 1117 of voltage stabilizing chip, the input pin of voltage stabilizing chip access 5V unidirectional currents
Pressure, the output pin output 3.3V DC voltages of voltage stabilizing chip are to single-chip microcomputer.
4. the early warning system of the anti-electrolytic etching of benthoscope as claimed in claim 2, it is characterised in that the channel selecting
Circuit adopts the optical relay of model AQW214A as passage gating switch to be checked；First pin of optical relay and the 3rd
Pin is connected to the two-way outfan of single-chip microcomputer；The second pin of optical relay and the 4th pin are connected to microcontroller power supply
Earth terminal；5th pin of optical relay or the 7th pin are connected to passage to be checked all the way；6th pin of optical relay
Accessory power supply positive pole is connected to the 8th pin Pin.
5. the early warning system of the anti-electrolytic etching of benthoscope as claimed in claim 4, it is characterised in that also include electrolysis electricity
Current detection circuit；The electrolytic current detection circuit includes model ISO-A8-P1-O4 analog quantity Isolation Amplifier Module, isolation
The input pin of amplification module is connected to optical relay, the current signal exported by optical relay is isolated and is amplified, and
Voltage signal is converted into, the output pin of Isolation Amplifier Module is connected to the AD sense channels of single-chip microcomputer.
6. the early warning system of the anti-electrolytic etching of benthoscope as claimed in claim 4, it is characterised in that Zener diode connects
It is connected between the input of Isolation Amplifier Module and earth terminal；Also include that high-power resistance, high-power resistance are connected on electrolysis electricity
In current detection circuit.
7. the early warning system of the anti-electrolytic etching of benthoscope as claimed in claim 2, it is characterised in that the single-chip microcomputer is
Single-chip microcomputer based on model STM32F103RBT6 of 32 Cortex-M3.
8. the early warning system of the anti-electrolytic etching of benthoscope as claimed in claim 2, it is characterised in that early warning circuit is also wrapped
Include the serial communication circuit for being connected to single-chip microcomputer；The serial communication circuit includes the RS-485 transmitting-receivings of model ADM2687E
Device.
9. the operation method of the early warning system of the anti-electrolytic etching of a kind of benthoscope based on described in claim 2, its feature
It is, early warning system is additionally provided with display floater, information display lamp, on and off switch, band switch is installed on display floater；Electricity
The reading end of flow table is installed on display floater；
Band switch control passage selection circuit；Optional passage includes each current supply circuit, automatic detecting pattern and neutral gear mould
Formula；Information display lamp has multiple, corresponds to each passage respectively, when passage is gated by band switch, its corresponding informance display lamp
Light；
When on and off switch is connected, system default enters automatic detecting pattern；Single-chip microcomputer carries out fixed to multigroup channel selection circuit
When control, allow which to circulate break-make successively, by all for submersible current supply circuit timesharing access electrolytic etching current detection circuit；Currently
Loop then has electric current to produce in the event of electrolytic etching, and ammeter shows the electrolytic etching electric current of current institute's sense channel in real time,
Intuitively data foundation is provided for driver；Electric current through conversion, isolation and amplifies, and produces voltage signal and is input into single-chip microcomputer,
Through calculating and filtering, the control system that testing result is real-time transmitted to submersible shows for control system, preserves single-chip microcomputer
And decision-making；
When submersible is operated, by rotate band switch, select enter automatic detecting pattern, manual detection mode or
Neutral mode；
When manual detection mode is entered, by rotating band switch, the electrolytic etching electric current of a certain special modality is examined
Survey；
When neutral mode is entered, then stop detection.
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