CN111708103A - Offshore wind condition active acquisition system based on 4G & DTU remote wireless transmission - Google Patents
Offshore wind condition active acquisition system based on 4G & DTU remote wireless transmission Download PDFInfo
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- CN111708103A CN111708103A CN202010589090.8A CN202010589090A CN111708103A CN 111708103 A CN111708103 A CN 111708103A CN 202010589090 A CN202010589090 A CN 202010589090A CN 111708103 A CN111708103 A CN 111708103A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/02—Instruments for indicating weather conditions by measuring two or more variables, e.g. humidity, pressure, temperature, cloud cover or wind speed
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
- G01P1/07—Indicating devices, e.g. for remote indication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/02—Indicating direction only, e.g. by weather vane
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
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Abstract
The invention discloses an offshore wind condition active acquisition system based on 4G & DTU remote wireless transmission, which comprises a remote data center, an ultrasonic wind speed and direction sensor, a solar power supply system and DTU wireless terminal equipment, wherein the DTU wireless terminal equipment supports a transparent transmission mode, is connected with the ultrasonic wind speed and direction sensor through a response type RS485 data interface and adopts a Modbus protocol for data transmission, the DTU wireless terminal equipment is in communication connection with the remote data center through a 4G wireless network, the remote data center is provided with a data acquisition system, and the data acquisition system actively acquires data monitored by the ultrasonic wind speed and direction sensor through the 4G wireless network communication according to the standard requirements. The invention can acquire high-frequency data according to the standard requirement, has low power consumption and can meet the requirement of continuous high-frequency sampling.
Description
Technical Field
The invention relates to the technical field of oceanographic monitoring, in particular to an active marine wind condition acquisition system based on 4G & DTU remote wireless transmission.
Background
The sea wind condition data adopted in the sea numerical simulation model (tide, ocean current, wave, storm surge, sediment deposition and the like) is a wind speed and wind direction characteristic value at a continuous integral point moment, and the characteristic value is usually represented by a statistic value continuously observed 10 minutes before the integral point moment. The method is released on 29 th 12 th 2017, and the ground meteorological observation regulation-wind speed and direction (GB/T35227) -2017 regulation (hereinafter referred to as the regulation) which is implemented on 1 st 7 th 2018 stipulates that the statistics of the observed value 10 minutes before the integral point time is taken as the wind speed and direction value of the integral point time, and the sampling time interval of the observed value 10 minutes before the integral point time is not more than 0.25 seconds, namely the sampling frequency is not less than 4 Hz.
Most of the existing offshore wind condition data acquisition systems adopt an offshore automatic observation meteorological station based on GPRS or 4G communication and solar power supply, most of wind condition monitoring sensors adopt stable ultrasonic wind speed and direction sensors, and the monitoring mode mainly adopts the automatic data acquisition at regular time, for example, an instantaneous wind speed and direction value is acquired every 10 minutes.
The problems that currently exist are: contradictions exist among the power supply capacity, the system power consumption and the data acquisition frequency of the observation system; the data acquisition mode is not flexible enough. The concrete expression is as follows:
1) offshore wind condition monitoring systems are generally located at seasides or offshore structures (such as breakwaters and lighthouses) with harsh environments, and the solar power supply system is not easily oversized in consideration of the requirement that the height of the instrument is 10 meters above the ground and the safety problem of equipment. This limits the power consumption of the system to be not too high.
2) Generally speaking, the data acquisition frequency is increased, the power consumption of the system is increased, and the data acquisition frequency is not easy to be too high in order to ensure the continuous and stable operation of the system. Most current observation systems observe data every 10 minutes.
3) GPRS communication has a low bandwidth speed and is difficult to support high frequency data transmission, especially in places where signals are weak at sea.
4) According to the "norm" sampling standard, only the observed value 10 minutes before the whole time belongs to a valid observed value, however, the current observation system only supports a fixed sampling time interval, so that the data of 0 to 50 minutes monitored in each hour belongs to invalid monitoring data, which greatly wastes electric energy resources (the waste proportion of 5/6).
5) At present, some ultrasonic wind speed and direction sensors are internally integrated with 4G communication modules, so that the data transmission capacity is greatly improved, the power consumption is reduced, the whole power consumption is considered because the ultrasonic wind speed and direction sensors only support fixed sampling time intervals, the sampling intervals are still only 3 minutes, and otherwise, the continuous and stable work of the system cannot be guaranteed due to power supply. The sampling frequency still can not meet the sampling requirement of the standard.
6) Some wind condition monitoring systems flexibly control the data acquisition time by adding a micro PC industrial personal computer, but the power consumption of the system is greatly increased, and the requirement of continuous high-frequency sampling cannot be met.
Disclosure of Invention
The invention provides an active marine wind condition acquisition system based on 4G & DTU remote wireless transmission for solving the technical problems in the prior art, the active marine wind condition acquisition system can acquire high-frequency data according to the requirements of ground meteorological observation specifications-wind speed and wind direction (GB/T35227-2017) specifications, has low power consumption and can meet the requirements of continuous high-frequency sampling.
The technical scheme adopted by the invention for solving the technical problems in the prior art is as follows: a marine wind condition active acquisition system based on 4G & DTU remote wireless transmission comprises a remote data center arranged on a shore, an ultrasonic wind speed and direction sensor arranged on the sea and a solar power supply system, wherein the remote data center is internally provided with a memory and is provided with a public network IP and a specified communication port, the marine wind condition active acquisition system also comprises a DTU wireless terminal device arranged on the sea, the DTU wireless terminal device is provided with a 4G communication module which supports a transparent transmission mode, is connected with the ultrasonic wind speed and direction sensor through a response type RS485 data interface and adopts a Modbus protocol for data transmission, the DTU wireless terminal device is in communication connection with the remote data center through a 4G wireless network, the remote data center is provided with a data acquisition system, and the data acquisition system requires data transmission according to ground meteorological observation specification-wind speed and direction (GB/T35227 and 2017) specification, Sending a Modbus data reading instruction to the DTU wireless terminal equipment through a specified communication port and the 4G communication module, sending the instruction to the ultrasonic wind speed and direction sensor through the RS485 interface after the DTU wireless terminal equipment receives the data reading instruction, outputting real-time data in a register of the ultrasonic wind speed and direction sensor to the DTU wireless terminal equipment by the ultrasonic wind speed and direction sensor, and automatically sending the data to a remote data center for storage after the DTU wireless terminal equipment receives the data; and the solar power supply system supplies power to the DTU wireless terminal equipment and the ultrasonic wind speed and direction sensor.
The 4G communication module II is arranged in the DTU wireless terminal equipment.
The remote data center is any one of a computer, a data server and a cloud server.
The solar power supply system comprises a solar panel, a confluence controller and a storage battery, wherein the solar panel charges the storage battery through the confluence controller.
The invention has the advantages and positive effects that: the DTU equipment is adopted to replace a PC industrial personal computer, so that the overall power consumption of the system is greatly reduced, the power consumption is lower than 4W, the cruising ability is improved, and the solar power supply system can work for a long time in an offshore unattended environment; the acquisition time can be actively controlled under the condition of not increasing high-power consumption equipment, and data are acquired only in an effective observation period, so that the acquisition frequency of the effective period is improved on the premise of not influencing the continuous working capacity of the system; 4G remote data transmission is realized, and the range of 15 kilometers in the offshore area can be covered by test signals; the function of remotely and actively acquiring wind condition data through the data center is realized; the tested acquisition frequency can reach 10Hz, and the requirement of the marine meteorological observation standard on the sampling frequency of 4Hz is completely met; the equipment can resist severe environment conditions, can stably work for a long time in an offshore unattended environment, and reduces the personnel maintenance cost.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a schematic diagram of the remote wireless data communication of the present invention;
FIG. 3 is a block diagram of a solar power system according to the present invention;
fig. 4 is a schematic diagram of the active data collection process of the present invention.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1 to 4, an active marine wind condition acquisition system based on 4G & DTU remote wireless transmission includes a remote data center disposed on shore, an ultrasonic wind speed and direction sensor disposed on the sea, and a solar power supply system, wherein the remote data center is provided with a memory and has a public network IP and a designated communication port, the active marine wind condition acquisition system further includes a DTU wireless terminal device disposed on the sea, the DTU wireless terminal device is provided with a 4G communication module supporting a transparent transmission mode, is connected with the ultrasonic wind speed and direction sensor through a responsive RS485 data interface and performs data transmission by using a Modbus protocol, the DTU wireless terminal device is connected with the remote data center through a 4G wireless network communication, the remote data center is provided with a data acquisition system, and the data acquisition system performs data transmission according to the ground meteorological observation specification-wind speed and direction (GB/T35227 plus 2017) specification Requesting and sending a Modbus data reading instruction to the DTU wireless terminal equipment through a specified communication port and the 4G communication module, wherein the DTU wireless terminal equipment receives the data reading instruction and then sends the instruction to the ultrasonic wind speed and direction sensor through the RS485 interface, the ultrasonic wind speed and direction sensor outputs real-time data in a register of the ultrasonic wind speed and direction sensor to the DTU wireless terminal equipment, and the DTU wireless terminal equipment receives the data and then automatically sends the data to the remote data center for storage; and the solar power supply system supplies power to the DTU wireless terminal equipment and the ultrasonic wind speed and direction sensor.
In this embodiment, the 4G communication module ii is arranged in the DTU wireless terminal device, and is small in size and convenient to install. The remote data center can be a common computer or a special data server, or can be a cloud server as long as the remote data center has a private network or public network IP address and opens a communication port specially used for wind condition data transmission. The solar power supply system comprises a solar panel, a convergence controller and a storage battery, wherein the solar panel charges the storage battery through the convergence controller, and the storage battery is connected with the DTU wireless terminal equipment and the ultrasonic wind speed and direction sensor through a power supply cable.
The invention is explained in more detail below:
the DTU is a wireless terminal device which is specially used for converting serial port data into IP data or converting the IP data into the serial port data and transmitting the serial port data through a wireless communication network, the DTU wireless terminal device is used as a receiving and transmitting controller of the ultrasonic wind direction and speed sensor, an RS485 interface is connected with the ultrasonic wind direction and speed sensor, a 4G communication module is arranged in the DTU, a transparent transmission mode is supported, and a Modbus data protocol is supported. After the DTU wireless terminal equipment is connected with the ultrasonic wind direction and speed sensor through a serial port, the DTU wireless terminal equipment serves as a modbus master station, the ultrasonic wind direction and speed sensor serves as a modbus slave station, and the DTU wireless terminal equipment can send a modbus instruction to the ultrasonic wind direction and speed sensor to actively acquire data.
The DTU wireless terminal equipment configures parameters through a remote or local connection mode, and mainly configures an IP address and a port number of a remote data center, heartbeat packet content and heartbeat time interval. The DTU wireless terminal is set and started or powered on to automatically register to a nearby 4G base station through a 4G module, automatically requests to connect with a remote data center according to configuration parameters, and keeps continuous communication with the remote data center according to heartbeat setting after connection is successful.
Through the wireless network communication connection established between the DTU wireless terminal equipment and the remote data center, the DTU wireless terminal equipment can receive the instruction of the remote data center and can also send the wind condition data to the remote data center. The DTU wireless terminal equipment is used as a communication bridge between the remote data center and the ultrasonic sensor and is a transfer station for realizing data bidirectional transmission.
4G mobile communication is selected, the range of 15 kilometers offshore can be covered by test signals, the requirement of monitoring offshore wind conditions is met, and the bandwidth can meet high-frequency data transmission.
The data acquisition system is installed in the remote data center, the data acquisition system sends a Modbus data reading command to the DTU wireless terminal equipment as required through communication connection between the DTU wireless terminal equipment and the remote data center, the DTU wireless terminal equipment receives the command and then sends the command to the ultrasonic sensor through the RS485 interface, the sensor outputs real-time data in a register of the sensor to the DTU wireless terminal equipment, and the DTU wireless terminal equipment receives the data and then automatically sends the data to the remote data center, so that data acquisition as required is realized.
The data acquisition system can flexibly control the data acquisition time and the sampling interval through configuration parameters, and through tests, the sampling frequency supported by the offshore wind condition active acquisition system can reach 10Hz, and meets the requirements of the Standard and is not less than 4 Hz. The data acquisition system performs data acquisition according to the 'standard' requirement by default, namely data is not acquired in the time period of 0 minute to 50 minutes, data is continuously acquired for 50 minutes to 60 minutes, and data is acquired for ten minutes according to the sampling frequency of 4 Hz.
The standby power consumption of the DTU wireless terminal equipment is 0.3W when no data is transmitted, the peak power consumption of the DTU wireless terminal equipment is 1.2W when the data is transmitted, and the overall power consumption of the system is not higher than 4W. Based on the system power consumption and considering that the size of a solar power supply system is not too large easily, the design power of a solar panel recommends 100W (+ -20W), the maximum power storage recommended by a storage battery recommends 1.0 kilowatt-hour +/-0.2, and the conversion efficiency is 70-80%. The recommended parameters may support the system to operate continuously for more than 7 days on consecutive cloudy days. The calculation method comprises the following steps: (1000W · h 70%)/(4W × 24h) > 7).
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (4)
1. A marine wind condition active acquisition system based on 4G & DTU remote wireless transmission comprises a remote data center arranged on the shore, an ultrasonic wind speed and direction sensor arranged on the sea and a solar power supply system, wherein a memory is arranged in the remote data center and is provided with a public network IP and a designated communication port, and the marine wind condition active acquisition system is characterized by also comprising a DTU wireless terminal device arranged on the sea, the DTU wireless terminal device is provided with a 4G communication module which supports a transparent transmission mode, is connected with the ultrasonic wind speed and direction sensor through a response type RS485 data interface and adopts a Modbus protocol for data transmission,
the DTU wireless terminal equipment is in communication connection with the remote data center through a 4G wireless network,
the remote data center is provided with a data acquisition system, the data acquisition system sends a Modbus data reading instruction to the DTU wireless terminal equipment through a specified communication port and the 4G communication module according to the standard requirements of ground meteorological observation standard-wind speed and direction (GB/T35227 plus 2017), the DTU wireless terminal equipment receives the data reading instruction and then sends the instruction to the ultrasonic wind speed and direction sensor through the RS485 interface, the ultrasonic wind speed and direction sensor outputs real-time data in a register of the ultrasonic wind speed and direction sensor to the DTU wireless terminal equipment, and the DTU wireless terminal equipment receives the data and then automatically sends the data to the remote data center for storage;
and the solar power supply system supplies power to the DTU wireless terminal equipment and the ultrasonic wind speed and direction sensor.
2. The active marine wind condition collection system based on 4G & DTU remote wireless transmission of claim 1, wherein the 4G communication module II is built in the DTU wireless terminal device.
3. The active marine wind condition acquisition system based on 4G & DTU remote wireless transmission according to claim 1, wherein the remote data center is any one of a computer, a data server and a cloud server.
4. The active marine wind condition collection system based on 4G & DTU remote wireless transmission of claim 1, wherein the solar power supply system comprises a solar panel, a bus controller and a storage battery, and the solar panel charges the storage battery through the bus controller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010589090.8A CN111708103A (en) | 2020-06-24 | 2020-06-24 | Offshore wind condition active acquisition system based on 4G & DTU remote wireless transmission |
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| CN202010589090.8A CN111708103A (en) | 2020-06-24 | 2020-06-24 | Offshore wind condition active acquisition system based on 4G & DTU remote wireless transmission |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114785659A (en) * | 2022-06-20 | 2022-07-22 | 武汉慧联无限科技有限公司 | Instruction configuration method and device, electronic equipment and computer-readable storage medium |
| CN115278571A (en) * | 2022-07-06 | 2022-11-01 | 明阳智慧能源集团股份公司 | Data wireless communication method between wind generating set and remote equipment |
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