CN206033895U - Digital constant potential rectifier remote monitoring device in cathodic protection facility - Google Patents
Digital constant potential rectifier remote monitoring device in cathodic protection facility Download PDFInfo
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- CN206033895U CN206033895U CN201621111157.2U CN201621111157U CN206033895U CN 206033895 U CN206033895 U CN 206033895U CN 201621111157 U CN201621111157 U CN 201621111157U CN 206033895 U CN206033895 U CN 206033895U
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Abstract
The utility model provides a digital constant potential rectifier remote monitoring device in cathodic protection facility, includes: intelligence controller and for its power supply ware that provides electric power, wherein, the intelligence controller includes at least: logarithmic word constant potential rectifier carries out the central processing unit that data were observed and controled, GPS module, GPRS module, watchdog module, serial port communication interface, RS485 communication module, central processing unit is connected with GPS module, watchdog module electricity respectively, and central processing unit still is connected with GPRS module, RS485 communication module electricity respectively through serial port communication interface, RS485 communication module still with the digital constant potential rectifier communication connection that has the RS485 interface. The utility model discloses a GPRS module can realize that digital constant potential rectifier remote monitoring device uploads the operating each item parameter of digital constant potential rectifier to the remote monitoring platform who sets up in ground buries steel pipe cathodic protection base to realize remote monitoring platform managers logarithmic word constant potential rectifier's real time monitoring's mesh.
Description
Technical field
This utility model is related to the supervising device in a kind of buried steel pipe cathodic protection facility, more particularly to a kind of negative electrode is protected
Digital potentiostat long-distance monitorng device in shield facility, belongs to cathodic protection monitoring technology field.
Background technology
In petroleum and petrochemical sector, it is common to use the steel pipe for being embedded in underground carries out oil product conveying, and cathodic protection is then
Effective antiseptical important means is carried out to these steel pipes for being embedded in underground.But in actual running, due to the moon
Pole protects the situation for causing buried steel pipe corrosion leakage occur not in place very many, once and leaking occur in these buried steel pipes,
Will very likely result serious security incident.Therefore, it is necessary to pass through cathode protection measure, it is ensured that buried steel pipe current potential over the ground
Control is in a certain given potential range so that the anode reaction occurred on buried steel pipe is inhibited, so as to effectively control
Make the corrosion of buried steel pipe.In the process, potentiostat is into requisite instrument and equipment in cathode protection measure.
The operation principle of potentiostat is：Reference signal Jing after impedance conversion is added to into comparison amplifier with given current potential
On, Jing after comparing and amplify, export the signal being directly proportional to error；When potentiostat is in automatic mode, the signal quilt
It is added on phase shift trigger, size of the phase shift trigger according to the signal voltage, the generation time of adjust automatically trigger pulse change
Silicon controlled conducting in polarization loop, so as to change the size of output current, voltage, makes up to reference potential equal to given
Current potential.
The transmittance process of this signal, under potentiostat automatic mode, it should be to carry out incessantly.But
It is that the common potentiostat for using at present only possesses some most basic control functions.Generally, it is to place it in room
It is interior, will be delivered on buried steel pipe and test pile about the technical parameter signal of telecommunication by way of having line traffic control by indoor occupant；
And the every technical parameter in management personnel are to potentiostat is when be adjusted, then need to physically go to potentiostat to put
Operated where putting accordingly.As the underground piping distribution in actual motion is wide, pipeline is long, therefore, to regular maintenance
Management causes many inconvenience.During actual maintenance, not only need to take a substantial amount of time, management personnel also cannot understand in real time
The parameters value of potentiostat, cannot realize remote monitor in real time at all, it is ensured that the normal operation of equipment.
Utility model content
For solving the above-mentioned parameters value that cannot understand potentiostat in real time, and cannot realize supervising in real time at a distance
The problems such as control, this utility model, provide the supervising device in a kind of buried steel pipe cathodic protection facility, realize remote monitoring platform
Purpose of the management personnel to the monitor in real time of digital potentiostat.
It is that, up to above-mentioned purpose, this utility model provides following technical scheme：
A kind of digital potentiostat long-distance monitorng device in cathodic protection facility, including：Intelligent monitoring device and carry for which
For the charger of electric power, wherein, the intelligent monitoring device at least includes：The centre of measurement and control is carried out to digital potentiostat
Reason device, for the GPS module of precision time service, for the GPRS module of extraneous communication, for protecting guarding the gate for central processing unit
Canis familiaris L. module, for providing multichannel serial communication interface, RS485 communication modules；The central processing unit respectively with the GPS
Module, watchdog module electrical connection, the central processing unit also by the serial communication interface respectively with the GPRS module,
RS485 communication modules are electrically connected, and are in by the low and high level control RS485 communication modules of the central processing unit I/O port
Receive or send state；The RS485 communication modules are also communicated to connect with the digital potentiostat with RS485 interfaces.
Used as a kind of embodiment, the serial communication interface includes multi-channel digital control analog switch, described to lead to more
The digital control analog switch in road forbids end by resistance eutral grounding, the multi-channel digital control analog switch forbid end also with
The central processing unit electrical connection；Two inputs of the multi-channel digital control analog switch are processed with the central authorities respectively
Device is electrically connected, two binary system control signals of multi-channel digital control analog switch respectively with the central processing unit
Electrical connection.
Used as a kind of embodiment, the multi-channel digital control analog switch includes the numeral control of CD4052 difference four-way
Analog switch processed.
Used as a kind of embodiment, the RS485 communication modules include communication chip MAX3485, the communication chip
The receptor outfan of MAX3485 controls the outfan electricity of analog switch by the first current-limiting resistance and the multi-channel digital
Connection, the driver output end of the communication chip MAX3485 control mould by the second current-limiting resistance with the multi-channel digital
Intend another outfan electrical connection of switch；The receptor output Enable Pin of the communication chip MAX3485, driver output are enabled
End is electrically connected with the central processing unit；The differential signal transmitting terminal of the communication chip MAX3485 is by the first partial pressure electricity
Resistance connects power supply, and the differential signal receiving terminal of the communication chip MAX3485 is grounded by the second divider resistance, the communication chip
Between the differential signal transmitting terminal of MAX3485, differential signal receiving terminal, bridging has the 3rd divider resistance.
Used as a kind of embodiment, the central processing unit adopts MSP430F169 single-chip microcomputers, the single-chip microcomputer to be circumscribed with
Oscillating circuit
Used as a kind of embodiment, the GPS module adopts UBLOX high-precision GPS time service modules or the Taiwan vast of heaven
M8729GPS chips or the UM220-III Big Dippeves+GPS dual-mode chip.
As a kind of embodiment, GPRS DTU module of the GPRS module using great great achievement of shaking.
Used as a kind of embodiment, the watchdog module adopts MCP1316-29 watchdog chips.
Used as a kind of embodiment, the charger includes：220VAC turns 12VDC power modules ,+12V and turns+5V power supply moulds
Block ,+5V turn+3.3V power modules ,+5V and turn -5V power modules, and wherein, 220VAC turns 12VDC power modules and adopts NES35-12
Bright latitude power supply ,+12V turn the conversion chip of+5V power modules using model LM2596-5, and+5V turns+3.3V power modules and uses
The conversion chip of model AMS1117-3.3 ,+5V turn the conversion chip of -5V power modules using model LMC7660IMX.
Compared with prior art, this utility model its advantage and marked improvement be：
1) the digital potentiostat long-distance monitorng device in a kind of cathodic protection facility that first, this utility model is provided,
Numeral potentiostat long-distance monitorng device is capable of achieving to remote monitoring platform upload digital by the GPRS module of intelligent monitoring device
The operating parameters of potentiostat, so that realize monitor in real time of the remote monitoring platform management personnel to digital potentiostat
Purpose.
2) secondly, this utility model provides multi-channel serial communication interface by Ports Serial Communication Ports for central processing unit,
Increased the serial interface of central processing unit；Efficiently solve because central processing unit serial interface very little, and cannot be external
More modules.
3) secondly, this utility model by RS485 communication modules be integrated with Signal-regulated kinase in prior art, signal every
From the function of conditioning module, signal isolation amplification module, relay control module etc., the components and parts of device are reduced, is facilitated
Production and use, also reduce maintenance cost, improve the stability of device, therefore, great application value.
Description of the drawings
The structure of the digital potentiostat long-distance monitorng device in a kind of cathodic protection facility that Fig. 1 is provided for this utility model
Into block diagram；
Digital potentiostat long-distance monitorng device in a kind of cathodic protection facility that Fig. 2 is provided for this utility model and the moon
The assembled state schematic diagram of the digital potentiostat in pole protection facility；
Fig. 3 is the RS485 communication module circuitry figures for including MAX3485 chips composition；
Fig. 4 is the circuit diagram for including the digital control analog switch of CD4052 difference four-ways；
Fig. 5 is the circuit diagram of MSP430F169 single-chip microcomputers in central processing unit；
Fig. 6 is the watchdog module circuit diagram for employing MCP1316-29 watchdog chips；
Supply in digital potentiostat long-distance monitorng device in a kind of cathodic protection facility that Fig. 7 is provided for this utility model
The composition block diagram of electric system；
Fig. 8 is the circuit diagram of+12V turn of+5V power module in this utility model charger；
Fig. 9 is the circuit diagram of+5V turn of+3.3V power module in this utility model charger；
Figure 10 is the circuit diagram of+5V turn of -5V power module in this utility model charger.
Specific embodiment
Below in conjunction with the accompanying drawings and description of the drawings and embodiment do further detailed to the technical scheme that this utility model is provided
Describe in detail bright.
Accompanying drawing described in explanation is only some specific embodiments for providing in this utility model embodiment, for
For those skilled in the art, on the premise of not paying creative work, can also be proposed with equal according to these accompanying drawings
The theory diagram or circuit diagram of function, but among these are intended to be included in protection domain of the present utility model.
Embodiment
As shown in Fig. 1～Figure 10, the digital potentiostat in a kind of cathodic protection facility that this utility model is provided is long-range
Supervising device, including：Intelligent monitoring device and the charger of electric power is provided for which, wherein, the intelligent monitoring device at least includes：It is right
Digital potentiostat carries out the central processing unit of measurement and control, for the GPS module of precision time service, for extraneous communication
GPRS module, the watchdog module for protecting central processing unit, for providing multichannel serial communication interface, RS485 leads to
Letter module；The central processing unit is electrically connected with the GPS module, watchdog module respectively, and the central processing unit also passes through
The serial communication interface is electrically connected with the GPRS module, RS485 communication modules respectively, and by the central processing unit I/O port
Low and high level control the RS485 communication modules in receiving or send state；The RS485 communication modules also with carry
The digital potentiostat communication connection of RS485 interfaces.
Preferably, the serial communication interface includes multi-channel digital control analog switch, the multi-channel digital control
Analog switch forbids holding INH by resistance eutral grounding, the forbidding of the multi-channel digital control analog switch hold INH also with it is described
The port P4.4 electrical connections of central processing unit；Two inputs X, Y of multi-channel digital control analog switch respectively with institute
Port P3.7, P3.6 electrical connection of single-chip microcomputer (central processing unit) is stated, the multi-channel digital controls two two of analog switch
System control signal A, B is electrically connected with port P4.2, P4.3 of the central processing unit respectively.
Preferably, the multi-channel digital control analog switch includes that the digital control simulation of CD4052 difference four-ways is opened
Close.Because central processor core provides only two-way serial communication, in the design, two modules of GPRS and GPS occupy two-way string
Mouthful, there is no the serial interface with the communication of RS485 communication modules, be to solve this problem, the design adopts CD4052 switch chips
By MCU wherein serial ports expansion, into two-way serial ports, connects RS485 communication modules and GPS module respectively all the way, realize complete serial ports
Communication link.
CD4052 is the digital control analog switch of 4 passage of difference, has two binary system control signals of A, B and INH
Input, with low conduction impedance and very low cut-off leakage current.Amplitude is that the digital signal of 4.5～20V can control peak-to-peak value extremely
The analogue signal of 20V.For example, if VDD=+5V, VSS=0, VEE=-13.5V, then the digital signal of 0～5V can control -13.5
The analogue signal of～4.5V, these on-off circuits have extremely low static work(in whole VDD-VSS and VDD-VEE power ranges
Consumption, it is unrelated with the logic state of control signal, when INH inputs=" 1 ", all passage cut-offs.Two binary system letters
Number gating 4 pairs of passages in a passage, can connect the input to export.
Preferably, the RS485 communication modules include communication chip MAX3485, the reception of the communication chip MAX3485
Device outfan RO is electrically connected by the outfan X0 that the first current-limiting resistance controls analog switch with the multi-channel digital, described
The driver output end DI of communication chip MAX3485 controls analog switch by the second current-limiting resistance with the multi-channel digital
Another outfan Y0 electrical connections；Receptor output Enable Pin RE of the communication chip MAX3485, driver output Enable Pin DE
It is connected with the port P4.5 of central processing unit electricity；The differential signal transmitting terminal B of the communication chip MAX3485 is by the
One divider resistance connects power supply, and the differential signal receiving terminal A of the communication chip MAX3485 is grounded by the second divider resistance, institute
Stating bridging between differential signal receiving terminal A, the differential signal transmitting terminal B of communication chip MAX3485 has the 3rd divider resistance.Pass through
RS485 communication modules, be integrated with Signal-regulated kinase in prior art, signal isolation conditioning module, signal isolation amplification module,
The function of relay control module etc., reduces the components and parts of device, facilitates production and uses, also reduces maintenance cost,
Improve the stability of device.
Preferably, the central processing unit adopts MSP430F169 single-chip microcomputers, the single-chip microcomputer to be circumscribed with oscillating circuit, schemes
5 circuit diagrams for being MSP430F169 single-chip microcomputers in central processing unit, MSP430F169 single-chip microcomputers are high-performance super low-power consumption list
Piece machine, supply voltage is 3.3V, and stand-by power consumption is 0.8 μ A, and power-down mode power consumption does not surpass to wakeup time from standby in 0.1 μ A
Cross 6 μ s.
The GPS module adopts UBLOX high-precision GPS time service modules, the module to search that star speed is fast, sensitivity is high, time service
High precision, time service precision is up to 10ns；The GPS module also can select the GPS chip of other models such as Taiwan vast of heaven M8729,
Such as the UM220-III Big Dippeves+GPS dual-mode chip.
GPRS DTU module of the GPRS module using great great achievement of shaking, GPRS DTU module Width funtions are powered, are supported
Line connects automatically, support call arousal function, support data encryption protocol；Certainly, the GPRS module can also adopt its alloytype
Number GPRS/CDMA DTU modules.
The watchdog module adopts MCP1316-29 watchdog chips, specifically, the MCP1316-29 house dogs core
The port WDI of piece is electrically connected with the port P4.1 of single-chip microcomputer, port/RST and the single-chip microcomputer of MCP1316-29 watchdog chips
Port P6.0 is electrically connected, by first, the port P6.0 of single-chip microcomputer also sees that gate resistor meets 3.3V power supplys, the port P6.0 of single-chip microcomputer
Also guard the gate capacity earth by first, by second, the port/MR of the MCP1316-29 watchdog chips sees that gate resistor connects
3.3V power supplys, the 3.3V power supplys are electrically connected with second one end for guarding the gate electric capacity, described second guard the gate electric capacity one end also with institute
State the port VDD electrical connections of MCP1316-29 watchdog chips, described second other end and the MCP1316- for guarding the gate electric capacity
The port VSS electrical connections of 29 watchdog chips, described second other end for guarding the gate electric capacity are grounded.Fig. 6 is and employs
The watchdog module circuit diagram of MCP1316-29 watchdog chips, employs the watchdog module of MCP1316-29 watchdog chips
The purpose of reset single-chip microcomputer when being capable of achieving to run into program fleet or voltage die, and single-chip microcomputer can be protected to avoid in low pressure operation
In the case of and the damage that causes.
The charger includes：220VAC turns 12VDC power modules ,+12V and turns+5V power modules ,+5V turn+3.3V power supplys
Module ,+5V turn -5V power modules, and wherein, 220VAC turns 12VDC power modules using the bright latitude power supplys of NES35-12, and+12V turns+
Conversion chip of the 5V power modules using model LM2596-5 ,+5V turn+3.3V power modules and use model AMS1117-
3.3 conversion chip ,+5V turn the conversion chip of -5V power modules using model LMC7660IMX.
+ 12V turns+5V power modules, and the pin 1 of conversion chip LM2596-5 connects 12V power supplys, the 12V power supplys and first
The negative electrode electrical connection of power diodes, the anode of first power diodes are grounded by fuse；The 12V power supplys pass through
Two-way transient supression diode ground connection, the pin 1 of the conversion chip LM2596-5 are also electrically connected with the positive pole of the first polar capacitor
Connect, the minus earth of first polar capacitor；The pin 5 of the conversion chip LM2596-5, pin 3 are grounded；Described turn
The pin 4,2 for changing chip LM2596-5 is electrically connected with the positive pole of the second polar capacitor, and the negative pole of second polar capacitor connects
Ground；The pin 2 of the conversion chip LM2596-5 is also electrically connected with the negative electrode of second source diode, second source diode
Plus earth；The pin 2 of the conversion chip LM2596-5 is also electric with one end of second source resistance by the first source resistance
Connection, the other end of the second source resistance form the outfan that+12V turns+5V power modules.
+ 5V turns+3.3V power modules, and the input Vin of conversion chip AMS1117-3.3 connects 5V power supplys, 5V power supplys and the
The anode electrical connection of three polar capacitors, the minus earth of the 3rd polar capacitor；The conversion chip AMS1117-3.3's is defeated
Enter to hold Vin to be grounded by the first power capacitor, the earth terminal GND ground connection of the conversion chip AMS1117-3.3；The conversion core
The output end vo ut of piece AMS1117-3.3 is electrically connected with the anode of quadripolarity electric capacity, and the negative electrode of the quadripolarity electric capacity connects
Ground；The output end vo ut of the conversion chip AMS1117-3.3 is by second source capacity earth, the conversion chip
The output end vo ut of AMS1117-3.3 is electrically connected with one end of the 3rd source resistance, the other end shape of the 3rd source resistance
Turn the power output end of+3.3V power modules into+5V.
+ 5V turns -5V power modules, and the pin 8 of conversion chip LMC7660IMX connects+5V power supplys by the 4th source resistance ,+
5V power supplys are electrically connected with the positive pole of the 5th polar capacitor, the minus earth of the 5th polar capacitor；The conversion chip
The pin 8 of LMC7660IMX is also grounded by the 3rd power capacitor, and the pin 3 of the conversion chip LMC7660IMX is grounded, institute
The pin 2 for stating conversion chip LMC7660IMX is electrically connected with the positive pole of the 6th polar capacitor, the negative pole of the 6th polar capacitor
Electrically connect with the pin 4 of the conversion chip LMC7660IMX；The pin 5 of the conversion chip LMC7660IMX and the 7th polarity
The negative pole electrical connection of electric capacity, the plus earth of the 7th polar capacitor；The pin 5 of the conversion chip LMC7660IMX with it is logical
Cross the 5th source resistance to electrically connect with one end of the 6th source resistance, the other end of the 6th source resistance forms+5V and turns -5V
The outfan of power module, one end of the 6th source resistance are also electrically connected with the negative pole of the 8th polar capacitor, and the described 8th
The plus earth of polar capacitor.
Digital potentiostat long-distance monitorng device in a kind of cathodic protection facility that this utility model is provided, can pass through
It is connected with digital potentiostat, constitutes the digital remote monitoring system of constant potential rectifier in buried steel pipe cathodic protection facility, this is
System is with following basic function：
1) numeral potentiostat long-distance monitorng device is capable of achieving by the GPRS module of intelligent monitoring device buried to being arranged on
The operating parameters of remote monitoring platform upload digital potentiostat in steel pipe cathodic protection base, realize remote monitoring
Monitor in real time of the platform management personnel to digital potentiostat.
2) instruction of remote monitoring platform transmission can be received by the GPRS module of intelligent monitoring device, realized to digital permanent electricity
The remote intelligent control of position instrument, these instructions include：The given current potential of the digital potentiostat of adjustment, the power-off of digital potentiostat are surveyed
Amount, mode setting instruction, overproof reset instruction, standby host switching command, warm reset, parameter setting instruction etc..
Thus, not only increasing the operational efficiency of whole system, while saving substantial amounts of manpower and materials, solve existing
Technology defines a kind of highly efficient, accurate, advanced dimension to buried steel pipe cathodic protection facility maintenance, managerial deficiency
Shield, management mode.
In sum：Digital potentiostat remote monitoring dress in a kind of cathodic protection facility that this utility model is provided
Put, can not only realize that the institute of potentiostat long-distance monitorng device in prior art is functional, reach and buried steel pipe negative electrode is protected
The remote real-time monitoring of shield facility, and, by RS485 communication modules, it is integrated with Signal-regulated kinase, signal in prior art
The function of isolation conditioning module, signal isolation amplification module, relay control module etc., reduces the components and parts of device, convenient
Production and use, also reduce maintenance cost, improve the stability of device, reached the purpose of this utility model setting,
Therefore, great application value.
Finally, it is necessary to which explanation is：The above is only used for help and understands the technical solution of the utility model, it is impossible to manage
Solution is the restriction to this utility model protection domain；Those skilled in the art are made according to the above of the present utility model
Non-intrinsically safe modifications and adaptations, belong to the protection domain required by this utility model.
Claims (9)
1. the digital potentiostat long-distance monitorng device in a kind of cathodic protection facility, it is characterised in that：Including：Intelligent monitoring device
With the charger for providing electric power for which, wherein, the intelligent monitoring device at least includes：Measurement and control is carried out to digital potentiostat
Central processing unit, for the GPS module of precision time service, for the GPRS module of extraneous communication, for protecting central process
The watchdog module of device, for providing multichannel serial communication interface, RS485 communication modules；
The central processing unit is electrically connected with the GPS module, watchdog module respectively, and the central processing unit is also by described
Serial communication interface is electrically connected with the GPRS module, RS485 communication modules respectively, and by the height of the central processing unit I/O port
RS485 communication modules described in low level control are in reception or send state；The RS485 communication modules also with RS485
The digital potentiostat communication connection of interface.
2. the digital potentiostat long-distance monitorng device in cathodic protection facility according to claim 1, it is characterised in that：
The serial communication interface includes multi-channel digital control analog switch, and multi-channel digital control analog switch forbids end
By resistance eutral grounding, the end of forbidding of the multi-channel digital control analog switch is also electrically connected with the central processing unit；It is described
Two inputs of multi-channel digital control analog switch are electrically connected with the central processing unit respectively, the multi-channel digital control
Two binary system control signals of analog switch processed are electrically connected with the central processing unit respectively.
3. the digital potentiostat long-distance monitorng device in cathodic protection facility according to claim 2, it is characterised in that：
The multi-channel digital control analog switch includes the digital control analog switch of CD4052 difference four-ways.
4. the digital potentiostat long-distance monitorng device in cathodic protection facility according to claim 1, it is characterised in that：
The RS485 communication modules include communication chip MAX3485, and the receptor outfan of the communication chip MAX3485 is by the
The outfan that one current-limiting resistance controls analog switch with the multi-channel digital is electrically connected, the communication chip MAX3485's
Driver output end is electrically connected by another outfan that the second current-limiting resistance controls analog switch with the multi-channel digital；Institute
State the receptor output Enable Pin of communication chip MAX3485, driver output Enable Pin to electrically connect with the central processing unit；
The differential signal transmitting terminal of the communication chip MAX3485 connects power supply, the communication chip by the first divider resistance
The differential signal receiving terminal of MAX3485 is grounded by the second divider resistance, and the differential signal of the communication chip MAX3485 sends
Between end, differential signal receiving terminal, bridging has the 3rd divider resistance.
5. the digital potentiostat remote monitoring in the cathodic protection facility according to any one in Claims 1 to 4 is filled
Put, it is characterised in that：The central processing unit adopts MSP430F169 single-chip microcomputers, the single-chip microcomputer to be circumscribed with oscillating circuit.
6. the digital potentiostat remote monitoring in the cathodic protection facility according to any one in Claims 1 to 4 is filled
Put, it is characterised in that：The GPS module adopt UBLOX high-precision GPS time service modules or Taiwan vast of heaven M8729GPS chips or
The UM220-III Big Dippeves+GPS dual-mode chip.
7. the digital potentiostat remote monitoring in the cathodic protection facility according to any one in Claims 1 to 4 is filled
Put, it is characterised in that：GPRS DTU module of the GPRS module using great great achievement of shaking.
8. the digital potentiostat remote monitoring in the cathodic protection facility according to any one in Claims 1 to 4 is filled
Put, it is characterised in that：The watchdog module adopts MCP1316-29 watchdog chips.
9. the digital potentiostat remote monitoring in the cathodic protection facility according to any one in Claims 1 to 4 is filled
Put, it is characterised in that：The charger includes：220VAC turn 12VDC power modules ,+12V turn+5V power modules ,+5V turn+
3.3V power modules ,+5V turn -5V power modules, and wherein, 220VAC turns 12VDC power modules using the bright latitude power supplys of NES35-12,
+ 12V turns the conversion chip of+5V power modules using model LM2596-5, and+5V turns+3.3V power modules and uses model
The conversion chip of AMS1117-3.3 ,+5V turn the conversion chip of -5V power modules using model LMC7660IMX.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621111157.2U CN206033895U (en) | 2016-10-11 | 2016-10-11 | Digital constant potential rectifier remote monitoring device in cathodic protection facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621111157.2U CN206033895U (en) | 2016-10-11 | 2016-10-11 | Digital constant potential rectifier remote monitoring device in cathodic protection facility |
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| Publication Number | Publication Date |
|---|---|
| CN206033895U true CN206033895U (en) | 2017-03-22 |
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| CN201621111157.2U Active CN206033895U (en) | 2016-10-11 | 2016-10-11 | Digital constant potential rectifier remote monitoring device in cathodic protection facility |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735141A (en) * | 2019-11-21 | 2020-01-31 | 无锡纽思铁科能源科技有限公司 | intelligent cathodic protection system based on LoRa spread spectrum communication |
| CN111575716A (en) * | 2020-05-09 | 2020-08-25 | 中核武汉核电运行技术股份有限公司 | Nuclear power plant buried pipeline cathodic protection effectiveness monitoring system |
-
2016
- 2016-10-11 CN CN201621111157.2U patent/CN206033895U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735141A (en) * | 2019-11-21 | 2020-01-31 | 无锡纽思铁科能源科技有限公司 | intelligent cathodic protection system based on LoRa spread spectrum communication |
| CN111575716A (en) * | 2020-05-09 | 2020-08-25 | 中核武汉核电运行技术股份有限公司 | Nuclear power plant buried pipeline cathodic protection effectiveness monitoring system |
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