CN219715593U - Ship stray current detection device - Google Patents
Ship stray current detection device Download PDFInfo
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- CN219715593U CN219715593U CN202223524340.3U CN202223524340U CN219715593U CN 219715593 U CN219715593 U CN 219715593U CN 202223524340 U CN202223524340 U CN 202223524340U CN 219715593 U CN219715593 U CN 219715593U
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- 238000001514 detection method Methods 0.000 title claims abstract description 50
- 238000004891 communication Methods 0.000 claims abstract description 39
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- 230000003750 conditioning effect Effects 0.000 claims abstract description 16
- 230000001360 synchronised effect Effects 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 238000007405 data analysis Methods 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 abstract description 16
- 238000005260 corrosion Methods 0.000 abstract description 16
- 238000010586 diagram Methods 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 235000015429 Mirabilis expansa Nutrition 0.000 description 1
- 244000294411 Mirabilis expansa Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical class [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000013536 miso Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The utility model provides a ship stray current detection device, comprising: reference electrode, data acquisition terminal, data processing terminal, power and power conversion circuit module and long-range cloud platform. The data acquisition terminal carries out multichannel synchronous acquisition of stray current signals; the signal conditioning circuit is connected with the ship body and the reference electrode, and controls the amplitude of the input stray current signal in a bearing voltage range; the microcontroller controls data acquisition, display, storage and remote communication. The data processing terminal is used for data display, storage and remote cloud platform communication. The remote cloud platform sends an instruction to the on-site data acquisition terminal, and the data acquisition terminal transmits data to the server and stores the data into the database. According to the technical scheme, the real-time performance, convenience and accuracy of data processing can be improved, and an accurate detection basis is provided for corrosion protection of ships.
Description
Technical Field
The utility model belongs to the technical field of ship stray current detection, and particularly relates to a ship stray current detection device.
Background
Stray current, which generally refers to current flowing off-design or regulated loops, is one of the important factors causing corrosion of the hull subsea hull and marine equipment. The stray current corrosion is electrolytic corrosion, and compared with other corrosion types, the method has the characteristics of high corrosion damage speed, obvious increase of corrosion amount of the ship body sacrificial anode and the like. At present, detection, evaluation and protection of ship stray current in China are mainly based on ship industry standard CB/T3712-2013 'protection method of ship stray current corrosion', and whether stray current corrosion exists is judged by measuring potential values of a ship and a reference electrode. The stray current of the ship is generally difficult to directly measure, and is generally judged by adopting potential values of the ship body and a reference electrode.
Stray current corrosion is one of the important factors affecting the normal operation of ship bodies and related ship equipment, and stray current detection has become an indispensable link for ship corrosion and protection. At present, no special ship stray current detection equipment is put into engineering application. In order to control damage of stray current corrosion to ships and prolong the service life of the ship body and related equipment, the utility model provides a ship stray current detection device which provides basis for judging existence and hazard degree of stray current and further taking drainage measures or other protection methods.
Disclosure of Invention
The embodiment of the utility model provides a ship stray current detection device, which can improve the real-time performance, convenience and accuracy of data processing and provide accurate detection basis for corrosion protection of ships.
In an embodiment of the present utility model, a detection apparatus for ship stray current is provided, including: reference electrode 2, data acquisition terminal 3, data processing terminal 7, power and power conversion circuit module 11 and remote cloud platform 12.
A reference electrode 2 for determining whether the stray current exists and the influence degree according to the potential parameter measured by the reference potential;
a data acquisition terminal 3 comprising: the signal conditioning circuit 4, the A/D conversion circuit 5 and the microcontroller 6 are used for carrying out multichannel synchronous acquisition of stray current signals; the signal conditioning circuit 4 is connected with the ship body 1 and the reference electrode 2, and controls the amplitude of the input stray current signal in a bearing voltage range; the microcontroller 6 is a core control unit of the whole ship stray current detection device and is used for controlling data acquisition, display, storage and remote communication.
The data processing terminal 7 includes: the LCD display circuit 8, the offline storage circuit 9 and the remote communication circuit 10 are used for data display, storage and remote cloud platform communication; the LCD display circuit 8, the offline storage circuit 9 and the remote communication circuit 10 are connected to the microcontroller 6, respectively.
The power supply and power supply conversion circuit module 11 is used for supplying power to each component part of the ship stray current detection device; remote cloud platform 12, comprising: the system comprises a login and registration module, a real-time monitoring module, a statistics report module and a data analysis module; the remote cloud platform 12 sends an instruction to the data acquisition terminal 3 on site, and the data acquisition terminal 3 transmits data to a server and stores the data in a database.
The data acquisition terminal 3 is respectively connected with the ship body 1 and the reference electrode 2, and the microcontroller 6 is connected with the remote cloud platform 12 through the remote communication circuit 10 in a network manner.
Further, the remote communication circuit 10 uploads the ship's stray current detection data to the remote cloud platform 12 based on a wireless communication technology including at least 4G, GPRS.
Further, in the offline storage circuit 9, the storage medium is an SD card, and the SD card uses the SPI mode to perform data transmission with the microcontroller, so as to store the collected data locally.
Further, the power supply and power supply conversion circuit module 11 comprises 4 paths of power supplies including +12V, +5V, +3.3V and-5V, the +12V power supply is provided by a rechargeable lithium battery, and the other three paths are realized by different power supply conversion circuits.
Further, the LCD display circuit (8) adopts a TFTLCD thin film transistor liquid crystal display module, and realizes bidirectional data transmission with the microcontroller through an 8080 parallel interface mode.
The beneficial effects brought by the utility model are as follows:
from the above-mentioned scheme, the embodiment of the utility model provides a ship stray current detection device, which comprises: reference electrode 2, data acquisition terminal 3, data processing terminal 7, power and power conversion circuit module 11 and remote cloud platform 12. The data acquisition terminal 3 is used for carrying out multichannel synchronous acquisition of stray current signals; the signal conditioning circuit 4 is connected with the ship body 1 and the reference electrode 2, and controls the amplitude of the input stray current signal in a bearing voltage range; the microcontroller 6 is a core control unit of the whole ship stray current detection device and is used for controlling data acquisition, display, storage and remote communication. A data processing terminal 7 for data display, storage and remote cloud platform communication; the LCD display circuit 8, the offline storage circuit 9 and the remote communication circuit 10 are connected to the microcontroller 6, respectively. The remote cloud platform 12 sends an instruction to the data acquisition terminal 3 on site, and the data acquisition terminal 3 transmits data to the server and stores the data in the database. The data acquisition terminal 3 is respectively connected with the ship body 1 and the reference electrode 2, and the microcontroller 6 is connected with the remote cloud platform 12 through the remote communication circuit 10 in a network manner. According to the technical scheme, the real-time performance, convenience and accuracy of data processing can be improved, and an accurate detection basis is provided for corrosion protection of ships.
Drawings
FIG. 1 shows a schematic structural diagram of a ship stray current detection device according to an embodiment of the utility model;
FIG. 2 shows a schematic diagram of a signal conditioning circuit of a ship stray current detection apparatus according to an embodiment of the utility model;
FIG. 3 shows a hardware wiring diagram of a microcontroller and an A/D conversion circuit of a marine spurious current detection means according to an embodiment of the present utility model;
fig. 4 shows a main control program design diagram of a ship stray current detection device according to an embodiment of the utility model;
in the figure, 1 is a ship body, 2 is a reference electrode, 3 is a data acquisition terminal, 4 is a signal conditioning circuit, 5 is an A/D conversion circuit, 6 is a microcontroller, 7 is a data processing terminal, 8 is an LCD display circuit, 9 is an off-line storage circuit, 10 is a remote communication circuit, 11 is a power supply and power supply conversion circuit module, 12 is a remote cloud platform, and 13 is a mobile terminal.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a ship stray current detection device, and relates to the technical field of ship stray current detection. The detection device comprises: reference electrode, data acquisition terminal, data processing terminal, power and power conversion circuit module and long-range cloud platform. The data acquisition terminal comprises a signal conditioning circuit, an A/D conversion circuit and a microcontroller. The data processing terminal includes an LCD display circuit, an off-line memory circuit, and a remote communication circuit. According to the utility model, the data acquisition terminal carries out multichannel synchronous acquisition according to the sampling frequency set by the microcontroller, the ship stray current signals after signal conditioning and A/D conversion are transmitted to the microcontroller for processing, the microcontroller displays the processed data on the LCD and transmits the processed data to the remote cloud platform through 4G/GPRS communication so as to be convenient for the mobile terminal to access, and offline storage is carried out when the network condition is poor, so that intelligent detection of the ship stray current interference condition is realized.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a ship stray current detection device according to an embodiment of the utility model.
In fig. 1, a detection apparatus for ship stray current includes: reference electrode 2, data acquisition terminal 3, data processing terminal 7, power and power conversion circuit module 11 and remote cloud platform 12.
The reference electrode 2 is used for judging whether the stray current exists or not and influencing the degree according to the potential parameter measured by the reference potential.
In the embodiment of the utility model, the reference electrode 2 is used as a potential sensor and is an indispensable component of a detection device, and potential parameters measured by reference potential of the reference electrode are important indexes for judging whether stray current exists and influence degree. The reference electrode can be selected from portable copper/saturated copper sulfate reference electrode, and has the characteristics of light volume, stable potential, difficult polarization, long service life, good corrosion resistance of the joint and the like.
A data acquisition terminal 3 comprising: the signal conditioning circuit 4, the A/D conversion circuit 5 and the microcontroller 6 are used for carrying out multichannel synchronous acquisition of stray current signals; the signal conditioning circuit 4 is connected with the ship body 1 and the reference electrode 2, and controls the amplitude of the input stray current signal in a bearing voltage range; the microcontroller 6 is a core control unit of the whole ship stray current detection device and is used for controlling data acquisition, display, storage and remote communication.
In the embodiment of the utility model, one end of the data acquisition terminal 3 is connected with the ship body, and the other end is connected with the reference electrode, so that six-channel synchronous acquisition of stray current signals can be performed. The A/D conversion circuit 5 is connected with the signal conditioning circuit 4 and is used for carrying out analog-to-digital conversion on the conditioned stray current signals. As the core of the A/D conversion circuit, the analog-to-digital converter selects an AD7606 chip for synchronous sampling of 16-bit 8 channels with high speed and high precision.
The data processing terminal 7 includes: the LCD display circuit 8, the offline storage circuit 9 and the remote communication circuit 10 are used for data display, storage and remote cloud platform communication; the LCD display circuit 8, the offline storage circuit 9 and the remote communication circuit 10 are connected to the microcontroller 6, respectively.
In the embodiment of the utility model, the LCD display circuit 8 adopts a TFTLCD thin film transistor liquid crystal display module, and realizes bidirectional data transmission with the microcontroller in an 8080 parallel interface mode. In the offline storage circuit 9, the storage medium is an SD card, and the SD card uses the SPI mode to perform data transmission with the microcontroller, so as to store the collected data locally. The remote communication circuit 10 uploads the ship's stray current detection data to the remote cloud platform 12 based on a wireless communication technology including at least 4G, GPRS.
In one embodiment of the present utility model, the remote communication circuit 10 uploads the ship stray current detection data to the remote cloud platform based on the 4G/GPRS wireless communication technology, and selects a 4G/GPRS communication module with embedded TCP/IP protocol and supporting AT instructions on the market. The advantages are wide coverage, convenient collection and operation, and low maintenance cost. And serial ports are used for transmitting data and commands between the 4G/GPRS communication module and the microcontroller. And the AT instruction set is used for completing the control of the TCP/IP protocol, establishing a data transmission channel and realizing the real-time transmission of data.
The power supply and power supply conversion circuit module 11 is used for supplying power to each component part of the ship stray current detection device; remote cloud platform 12, comprising: the system comprises a login and registration module, a real-time monitoring module, a statistics report module and a data analysis module; the remote cloud platform 12 sends an instruction to the data acquisition terminal 3 on site, and the data acquisition terminal 3 transmits data to a server and stores the data in a database.
The data acquisition terminal 3 is respectively connected with the ship body 1 and the reference electrode 2, and the microcontroller 6 is connected with the remote cloud platform 12 through the remote communication circuit 10 in a network manner.
In the embodiment of the utility model, the power supply and power supply conversion circuit module 11 comprises 4 paths of power supplies including +12V, +5V, +3.3V and-5V, wherein +12V power supply is provided by a rechargeable lithium battery, and the other three paths are realized by different power supply conversion circuits. The +12V-to- +5V circuit is realized by a buck DC/DC converter; the +5V to +3.3V circuit is realized by an AX1117-3.3V voltage stabilizing chip; the +5V-to-5V circuit converts a positive voltage input within a certain range into a negative voltage output with opposite polarity by utilizing the principle of a charge pump.
Fig. 2 is a schematic diagram of a signal conditioning circuit of a ship stray current detection apparatus according to an embodiment of the utility model.
In fig. 2, the signal conditioning circuit is used as a stray current signal input into the front stage, is connected with the ship body and the reference electrode, and is used for controlling the amplitude of the input stray current signal within the bearing voltage range so as to avoid damaging the rear stage circuit. The circuit comprises a voltage dividing circuit, a filter circuit, a voltage follower circuit, an amplifying circuit and a clamp protection circuit in sequence.
As shown in fig. 3 and 4, fig. 3 shows a hardware wiring diagram of a microcontroller and an a/D conversion circuit of a ship spurious current detection device according to an embodiment of the present utility model, and fig. 4 shows a main control program design diagram of a ship spurious current detection device according to an embodiment of the present utility model.
The microcontroller is a core control unit of the whole ship stray current detection device, and is used for controlling data acquisition, display, storage and remote communication, and a main control program flow chart is shown in fig. 4. And comprehensively considering the factors such as performance, cost, development difficulty and the like, and selecting STM32F103 series microcontrollers to build a STM32F103 minimum system. The STM32F103 minimum system is the smallest constituent unit that enables a microcontroller to operate. As shown in fig. 3, the SCLK clock signal line/CS chip select line/MISO line of the SPI interface in the ad7606 chip is connected to the PC11/PC12/PC9 pins of the STM32F103 minimum system, respectively, and uses the SPI mode for data transmission.
The embodiment of the utility model provides a ship stray current detection device, which comprises: reference electrode 2, data acquisition terminal 3, data processing terminal 7, power and power conversion circuit module 11 and remote cloud platform 12. The data acquisition terminal 3 is used for carrying out multichannel synchronous acquisition of stray current signals; the signal conditioning circuit 4 is connected with the ship body 1 and the reference electrode 2, and controls the amplitude of the input stray current signal in a bearing voltage range; the microcontroller 6 is a core control unit of the whole ship stray current detection device and is used for controlling data acquisition, display, storage and remote communication. A data processing terminal 7 for data display, storage and remote cloud platform communication; the LCD display circuit 8, the offline storage circuit 9 and the remote communication circuit 10 are connected to the microcontroller 6, respectively. The remote cloud platform 12 sends an instruction to the data acquisition terminal 3 on site, and the data acquisition terminal 3 transmits data to the server and stores the data in the database. The data acquisition terminal 3 is respectively connected with the ship body 1 and the reference electrode 2, and the microcontroller 6 is connected with the remote cloud platform 12 through the remote communication circuit 10 in a network manner. According to the technical scheme, the real-time performance, convenience and accuracy of data processing can be improved, and an accurate detection basis is provided for corrosion protection of ships.
The foregoing is a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model and are intended to be comprehended within the scope of the present utility model.
Claims (5)
1. A detection device for ship stray current, characterized in that the detection device comprises: the system comprises a reference electrode (2), a data acquisition terminal (3), a data processing terminal (7), a power supply and power supply conversion circuit module (11) and a remote cloud platform (12);
the reference electrode (2) is used for judging whether stray current exists or not and the influence degree according to the potential parameter measured by the reference potential;
the data acquisition terminal (3) comprises: the signal conditioning circuit (4), the A/D conversion circuit (5) and the microcontroller (6) are used for carrying out multichannel synchronous acquisition of stray current signals; the signal conditioning circuit (4) is connected with the ship body (1) and the reference electrode (2) and controls the amplitude of the input stray current signal in a bearing voltage range; the microcontroller (6) is a core control unit of the whole ship stray current detection device and is used for controlling data acquisition, display, storage and remote communication;
the data processing terminal (7) comprises: the LCD display circuit (8), the off-line storage circuit (9) and the remote communication circuit (10) are used for data display, storage and remote cloud platform communication; the LCD display circuit (8), the off-line storage circuit (9) and the remote communication circuit (10) are respectively connected with the microcontroller (6);
the power supply and power supply conversion circuit module (11) is used for supplying power to each component part of the ship stray current detection device;
the remote cloud platform (12) comprising: the system comprises a login and registration module, a real-time monitoring module, a statistics report module and a data analysis module; the remote cloud platform (12) sends an instruction to the on-site data acquisition terminal (3), and the data acquisition terminal (3) transmits data to the server and stores the data in the database;
the data acquisition terminal (3) is respectively connected with the ship body (1) and the reference electrode (2), and the microcontroller (6) is connected with the remote cloud platform (12) through the remote communication circuit (10) in a network mode.
2. A marine vessel stray current detection arrangement according to claim 1, wherein the remote communication circuit (10) uploads marine vessel stray current detection data to the remote cloud platform (12) based on a wireless communication technology comprising at least 4G, GPRS.
3. The ship stray current detection device according to claim 1, wherein in the off-line storage circuit (9), the storage medium is an SD card, and the SD card uses an SPI mode to perform data transmission with the microcontroller for storing the collected data locally.
4. The ship stray current detection device according to claim 1, wherein the power supply and power supply conversion circuit module (11) comprises 4 paths of power supplies including +12v, +5v, +3.3v and-5V, the +12v power supply is provided by a rechargeable lithium battery, and the other three paths are realized by different power supply conversion circuits.
5. The ship stray current detection device according to claim 1, wherein the LCD display circuit (8) adopts a tft LCD module, and data is bidirectionally transmitted with the microcontroller through an 8080 parallel interface mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223524340.3U CN219715593U (en) | 2022-12-28 | 2022-12-28 | Ship stray current detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223524340.3U CN219715593U (en) | 2022-12-28 | 2022-12-28 | Ship stray current detection device |
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| Publication Number | Publication Date |
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| CN219715593U true CN219715593U (en) | 2023-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223524340.3U Active CN219715593U (en) | 2022-12-28 | 2022-12-28 | Ship stray current detection device |
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| CN (1) | CN219715593U (en) |
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- 2022-12-28 CN CN202223524340.3U patent/CN219715593U/en active Active
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