CN115297378A - Distributed marine meteorological information acquisition system - Google Patents
Distributed marine meteorological information acquisition system Download PDFInfo
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- CN115297378A CN115297378A CN202210919747.1A CN202210919747A CN115297378A CN 115297378 A CN115297378 A CN 115297378A CN 202210919747 A CN202210919747 A CN 202210919747A CN 115297378 A CN115297378 A CN 115297378A
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- H—ELECTRICITY
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- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- G—PHYSICS
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- G01W—METEOROLOGY
- G01W1/00—Meteorology
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
- H04Q2209/43—Arrangements in telecontrol or telemetry systems using a wireless architecture using wireless personal area networks [WPAN], e.g. 802.15, 802.15.1, 802.15.4, Bluetooth or ZigBee
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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
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- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Abstract
The invention discloses a distributed marine meteorological information acquisition system, which comprises: the acquisition module is used for acquiring marine environment data in real time based on a plurality of sensor nodes; the storage module is connected with the acquisition module and used for storing the real-time acquired marine environment data and the standard marine environment data; the processing module is connected with the storage module and is used for comparing and analyzing the real-time collected marine environment data and the standard marine environment data to obtain marine meteorological information; the transmission module is connected with the processing module and used for transmitting the oceanographic weather information to the remote monitoring module based on the narrowband Internet of things; and the remote monitoring module is connected with the transmission module and is used for converting the marine meteorological information into meteorological chart information and displaying the meteorological chart information. The invention is based on a distributed structure and a narrow-band Internet of things technology, improves the coverage area of the meteorological information acquisition system, and thus improves the accuracy of the acquired meteorological information.
Description
Technical Field
The invention belongs to the technical field of Internet of things, and particularly relates to a distributed marine meteorological information acquisition system.
Background
The weather, climate and climate change of the ocean is inseparable, heat, momentum, substances and the like exist between the ocean and the atmosphere, and the ocean-gas interaction can cause ever-changing weather and climate phenomena or extreme events, such as an Elnino event, a Ranina event, typhoon and the like, so that global or regional climate abnormity and meteorological disasters are caused, and great influence is brought to the change and development of the climate. Since the weather information of the ocean has a great influence on the life of surrounding residents, the work of fishery and the development of nearby industries, the weather information of the ocean needs to be collected timely and accurately.
Disclosure of Invention
The invention aims to provide a distributed marine meteorological information acquisition system to solve the problems in the prior art.
In order to achieve the above object, the present invention provides a distributed marine meteorological information acquisition system, including:
the acquisition module is used for acquiring marine environment data in real time based on a plurality of sensor nodes;
the storage module is connected with the acquisition module and used for storing the real-time acquired marine environment data and the standard marine environment data;
the processing module is connected with the storage module and used for comparing and analyzing the real-time collected marine environment data and the standard marine environment data to obtain marine meteorological information;
the transmission module is connected with the processing module and used for transmitting the oceanographic weather information to the remote monitoring module based on the narrowband Internet of things;
and the remote monitoring module is connected with the transmission module and is used for converting the marine meteorological information into meteorological chart information and displaying the meteorological chart information.
Preferably, the acquisition module comprises:
the sensor unit is used for acquiring monitoring signals of the marine environment based on a plurality of sensor nodes; wherein the monitoring signal is a bipolar analog signal;
the data conversion unit is used for converting the monitoring signals into marine environment data;
the ZigBee routing unit is used for transmitting the marine environment data to an acquisition terminal based on a ZigBee mesh topology structure;
and the acquisition terminal is used for receiving and summarizing the marine environment data and transmitting the marine environment data to the storage module.
Preferably, the data conversion unit includes:
the low-pass filtering unit is used for filtering high-frequency interference in the bipolar analog signal to obtain a target bipolar analog signal;
the precise absolute value unit is used for converting the target bipolar analog signal into a unipolar analog signal;
the precise amplification unit is used for amplifying the unipolar analog signal to obtain a target unipolar analog signal and transmitting the target unipolar analog signal to the digital conversion unit;
and the digital conversion unit is used for converting the target unipolar analog signal into marine environment data.
Preferably, the ZigBee mesh topology comprises:
the coordinator node is used for identifying a plurality of sensor nodes in the ZigBee network;
the router node is used for adding the identified sensor nodes into the ZigBee network and carrying out communication among the sensor nodes;
and the terminal node is used for transmitting the marine environment data acquired by the plurality of sensor nodes to the acquisition terminal.
Preferably, the storage module includes:
the meteorological database unit is used for storing standard marine environment data;
and the real-time storage unit is used for storing the marine environment data acquired in real time.
Preferably, the processing module comprises:
the denoising unit is used for performing wavelet denoising processing on the marine environment data acquired in real time to obtain target marine environment data;
the first processing unit is used for calling the standard marine environment data in the meteorological database, comparing the target marine environment data with the standard marine environment data and sending a comparison result to the second processing unit;
and the second processing unit is used for analyzing and processing the comparison result to acquire the oceanographic information.
Preferably, the remote monitoring module includes:
the meteorological chart generating unit is used for generating a meteorological chart according to the marine meteorological information and sending the meteorological chart to the data display unit;
the data display unit is used for displaying the marine meteorological information and the meteorological chart;
and the data query unit is used for querying the real-time marine environment data and the marine meteorological information.
The invention has the technical effects that:
according to the invention, a distributed information acquisition system is adopted, and a plurality of sensor nodes and acquisition terminals transmit data by utilizing a ZigBee mesh extension structure, so that the data transmission efficiency is greatly improved; and one routing path has a problem, and information can be automatically transmitted along other routing paths, so that the flexibility of data transmission is improved, and the loss of data in the transmission process is avoided.
The invention can carry out key monitoring on the ocean area near inland, particularly can set sensor nodes according to requirements on the outdoor fishing and sailing movement route, and improves the safety of offshore work and travel.
The invention is based on a distributed structure and a narrow-band Internet of things technology, improves the coverage area of a meteorological information acquisition system, thereby improving the accuracy of acquired meteorological information and completing the real-time acquisition and release of oceanographic meteorological information.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of an information acquisition system in an embodiment of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
Example one
As shown in fig. 1, the present embodiment provides a distributed marine meteorological information acquisition system, including:
the acquisition module is used for acquiring marine environment data in real time based on a plurality of sensor nodes; the storage module is connected with the acquisition module and used for storing the real-time acquired marine environment data and the standard marine environment data; the processing module is connected with the storage module and is used for comparing and analyzing the real-time collected marine environment data and the standard marine environment data to obtain marine meteorological information; the transmission module is connected with the processing module and used for transmitting the oceanographic information to the remote monitoring module based on the narrow-band Internet of things; and the remote monitoring module is connected with the transmission module and is used for converting the marine meteorological information into meteorological chart information and displaying the meteorological chart information.
In an implementation manner, the acquisition module comprises: the sensor unit is used for acquiring monitoring signals of the marine environment based on a plurality of sensor nodes; wherein the monitoring signal is a bipolar analog signal; a data conversion unit for converting the monitoring signal into marine environmental data, the data conversion unit comprising: the low-pass filtering unit is used for filtering high-frequency interference in the bipolar analog signal to obtain a target bipolar analog signal; the precise absolute value unit is used for converting the target bipolar analog signal into a unipolar analog signal; the precise amplifying unit is used for amplifying the unipolar analog signal to obtain a target unipolar analog signal and transmitting the target unipolar analog signal to the digital conversion unit; and the digital conversion unit is used for converting the target unipolar analog signals into marine environment data.
The interface of the acquisition module may comprise one or more of an RS-485 interface, a DI interface, a DO interface, or a DC interface.
Practically, the data conversion unit of the embodiment adopts an AD9260 high-speed analog-to-digital converter; the AD9260 high-speed analog-to-digital converter converts the electric signals into digital signals and transmits the digital signals to the acquisition terminal.
The sensor unit may comprise a plurality of weather sensors, which may be barometric pressure sensors or other devices capable of measuring barometric pressure for measuring atmospheric pressure at a predetermined distance from the ocean surface. The meteorological sensor may be a temperature sensor or other device capable of measuring temperature for measuring the atmospheric temperature a predetermined distance from the ocean surface. The meteorological sensor may be a humidity sensor or other device capable of measuring humidity for measuring atmospheric humidity from a predetermined distance above the ocean surface. The meteorological sensor may be a wind direction sensor or other device capable of measuring the direction of the wind for measuring the direction of the wind at the ocean surface. The meteorological sensor may be a wind speed sensor or other device capable of measuring wind speed for measuring wind speed at the ocean surface. The meteorological sensor may be a solar radiation sensor or other device capable of measuring radiation intensity for measuring radiation intensity at the ocean surface. The meteorological sensor may be a barometric pressure sensor for measuring the absolute pressure of the gas at sea.
The marine environment information acquisition system can be implemented, further comprises a modern automatic marine environment observation platform which is based on a marine environment monitoring buoy and used for monitoring the marine cloud height, is anchored at sea, can perform long-term, continuous and real-time observation on a distributed sea area, has the capability of resisting severe weather such as typhoon and the like, and is used for monitoring the marine cloud height.
The acquisition module of this embodiment still includes: the ZigBee routing unit transmits marine environment data to the acquisition terminal based on the ZigBee mesh topology structure; and the acquisition terminal receives and summarizes the marine environment data and transmits the marine environment data to the storage module.
Practically, the sensor unit includes: temperature and humidity sensor, wind speed sensor, solar radiation sensor, baroceptor, cloud height sensor.
Practically, the ZigBee mesh topology mainly consists of three nodes: end node, router node and PAN coordinator node functions. Wherein, the coordination node: the ZigBee coordinator is a gathering point of information of each node of the network, is a core node of the network and is responsible for the construction, maintenance and management of the network; the ZigBee coordinator has strong communication capacity, processing capacity and sending capacity and can send data to the data acquisition terminal. A router node: the sensor node is responsible for transmission of data packets, routing search and routing maintenance of data are carried out, a plurality of searched sensor nodes are allowed to be added into a network, and communication of child nodes is assisted; the router node is a relay between the terminal node and the coordinator node, relaying communications between the terminal node and the coordinator node. A terminal node: the end nodes may be connected directly to the coordinator node or may be connected to the coordinator node through a router node.
In the ZigBee mesh topology routing method of this embodiment, a source node sends an RREQ data packet to its neighboring node by flooding; the intermediate node forwards the RREQ data packet received for the first time, and starts a routing failure timer, and establishes reverse paths for all the same received RREQs before the routing failure timer is overtime; after receiving the RREQ data packet, the destination node replies to the RREP and starts a multi-path route timer, and the multi-path route timer replies to all received RREQs before overtime and establishes a reverse route; after receiving the RREP, the intermediate node stops the route failure timer to start the multipath route timer, updates the RLQI value in the RREP and forwards the RLQI value; after the source node receives the RREP of the destination node, if the routing failure timer is not overtime, starting a data waiting timer and continuously receiving the RREP; when the timer is overtime, selecting the link with the maximum weight value to establish a forward route and sending data; if the intermediate node receives the data before the multi-path routing timer is overtime, the routing is updated, otherwise all relevant routing table entries are deleted.
The mesh routing topology method in the embodiment can obtain the minimum value of the link quality in the transmission path, can obtain the path with the best overall link quality, can dynamically balance the load of the multi-path routing, and overcomes the technical problems that the traditional routing method cannot effectively distribute the network load, causes partial network congestion and the like. The plurality of sensor nodes and the acquisition terminal which are adopted by the embodiment transmit data by utilizing the ZigBee mesh extension structure, so that the data transmission efficiency is greatly improved; and one routing path has a problem, and information can be automatically transmitted along other routing paths, so that the flexibility of data transmission is improved, and the loss of data in the transmission process is avoided.
The storage module may comprise: the meteorological database unit is used for storing standard marine environment data; and the real-time storage unit is used for storing the marine environment data acquired in real time. The data storage circuit realizes the storage of meteorological data by a CF card, the CF card adopts an interface mode supporting industrial and non-volatile memory (DE), and the size of the CF card is 64M. The storage of large batches of data can be realized.
The processing module may comprise: the denoising unit is used for performing wavelet denoising processing on the marine environment data acquired in real time to obtain target marine environment data; the first processing unit is used for calling the standard marine environment data in the meteorological database, comparing the target marine environment data with the standard marine environment data and sending a comparison result to the second processing unit; and the second processing unit is used for analyzing and processing the comparison result to acquire the oceanographic information.
The processing module of the embodiment is provided with a wavelet denoising algorithm based on the inclination angle data of the modulus maximum. Weak signals of the inclination angle sensor pass through links such as hardware filtering, and although part of interference sources on part of power transmission lines are filtered, some tiny interference sources still exist, so that the accuracy of data acquisition is influenced; the wavelet transform has good localization property on a time domain and a frequency domain, is very suitable for processing the mutation signal, and has the capability of capturing the mutation signal and the excellent function of removing noise interference by using the device.
Basic principle of wavelet threshold denoising: after a signal is subjected to wavelet transformation (by adopting a Mallat algorithm), a wavelet coefficient generated by the signal contains important information of the signal, the wavelet coefficient is larger after the signal is subjected to wavelet decomposition, the wavelet coefficient of noise is smaller, and the wavelet coefficient of the noise is smaller than the wavelet coefficient of the signal. The signal is substantially suppressed in an unnecessary portion and enhanced in a useful portion.
The wavelet de-noising method is an algorithm based on wavelet transform multi-resolution analysis, and its basic idea is to remove the wavelet coefficients corresponding to the noise on each frequency band according to the characteristic that the wavelet decomposition coefficients of the noise and the signal on different frequency bands have different intensity distributions, to retain the wavelet decomposition coefficients of the original signal, and then to perform wavelet reconstruction on the processed coefficients to obtain the pure signal. Compared with other denoising methods in the prior art, the wavelet transformation has a good denoising effect under the condition of low signal-to-noise ratio, the denoised signal has a high recognition rate, and the wavelet denoising method has a particularly obvious denoising effect on time-varying signals and mutation signals.
And the transmission module is connected with the processing module and used for transmitting the oceanographic information to the remote monitoring module based on the narrow-band Internet of things. The method has the advantages that the method is practicable, a narrow-band Internet of things technology is adopted during data transmission, the narrow-band Internet of things is a cellular network-based Internet of things technology and is a representative of a low-power-consumption wide area network, the processed meteorological data can be transmitted through the narrow-band Internet of things, and the method has the advantages of low cost, low power consumption, low speed, high connection, excellent architecture, wide coverage and the like.
The remote monitoring module may comprise: the meteorological chart generating unit is used for generating a meteorological chart according to the marine meteorological information and sending the meteorological chart to the data display unit; the data display unit is used for displaying the marine meteorological information and the meteorological chart; and the data query unit is used for querying the real-time marine environment data and the marine meteorological information.
This embodiment can be to the marine region that closes on inland carrying out key monitoring, especially to on the route of outdoor fishing, sailing boat motion, can set up sensor node according to the demand, improves the security of marine work and travel. The embodiment is based on a distributed structure and a narrow-band Internet of things technology, and improves the coverage range of the meteorological information acquisition system, so that the accuracy of the acquired meteorological information is improved, and the real-time acquisition and release of the marine meteorological information can be completed.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a distributing type oceanographic weather information acquisition system which characterized in that includes:
the acquisition module is used for acquiring marine environment data in real time based on a plurality of sensor nodes;
the storage module is connected with the acquisition module and used for storing the real-time acquired marine environment data and the standard marine environment data;
the processing module is connected with the storage module and used for comparing and analyzing the real-time collected marine environment data and the standard marine environment data to obtain marine meteorological information;
the transmission module is connected with the processing module and used for transmitting the oceanographic weather information to the remote monitoring module based on the narrowband Internet of things;
and the remote monitoring module is connected with the transmission module and is used for converting the marine meteorological information into meteorological chart information and displaying the meteorological chart information.
2. The distributed oceanographic information collection system of claim 1,
the acquisition module comprises:
the sensor unit is used for acquiring monitoring signals of marine environment based on a plurality of sensor nodes; wherein the monitoring signal is a bipolar analog signal;
the data conversion unit is used for converting the monitoring signals into marine environment data;
the ZigBee routing unit is used for transmitting the marine environment data to an acquisition terminal based on a ZigBee mesh topology structure;
and the acquisition terminal is used for receiving and summarizing the marine environment data and transmitting the marine environment data to the storage module.
3. The distributed oceanographic information collection system of claim 2,
the data conversion unit includes:
the low-pass filtering unit is used for filtering high-frequency interference in the bipolar analog signal to obtain a target bipolar analog signal;
the precise absolute value unit is used for converting the target bipolar analog signal into a unipolar analog signal;
the precise amplification unit is used for amplifying the unipolar analog signal to obtain a target unipolar analog signal and transmitting the target unipolar analog signal to the digital conversion unit;
and the digital conversion unit is used for converting the target unipolar analog signal into marine environment data.
4. The distributed oceanographic information collection system of claim 2,
the ZigBee mesh topology structure comprises:
the coordinator node is used for identifying a plurality of sensor nodes in the ZigBee network;
the router node is used for adding the identified sensor nodes into the ZigBee network and carrying out communication among the sensor nodes;
and the terminal node is used for transmitting the marine environment data acquired by the plurality of sensor nodes to the acquisition terminal.
5. The distributed oceanographic information collection system of claim 1,
the memory module includes:
the meteorological database unit is used for storing standard marine environment data;
and the real-time storage unit is used for storing the marine environment data acquired in real time.
6. The distributed metocean information acquisition system of claim 1, wherein,
the processing module comprises:
the denoising unit is used for performing wavelet denoising processing on the marine environment data acquired in real time to obtain target marine environment data;
the first processing unit is used for calling the standard marine environment data in the meteorological database, comparing the target marine environment data with the standard marine environment data and sending a comparison result to the second processing unit;
and the second processing unit is used for analyzing and processing the comparison result to acquire the oceanographic information.
7. The distributed metocean information acquisition system of claim 1, wherein,
the remote monitoring module includes:
the meteorological chart generating unit is used for generating a meteorological chart according to the marine meteorological information and sending the meteorological chart to the data display unit;
the data display unit is used for displaying the marine meteorological information and the meteorological chart;
and the data query unit is used for querying the real-time marine environment data and the marine meteorological information.
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| CN202210919747.1A CN115297378A (en) | 2022-08-02 | 2022-08-02 | Distributed marine meteorological information acquisition system |
| PCT/CN2022/110784 WO2024026902A1 (en) | 2022-08-02 | 2022-08-08 | Distributed marine meteorological information acquisition system |
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| CN202210919747.1A CN115297378A (en) | 2022-08-02 | 2022-08-02 | Distributed marine meteorological information acquisition system |
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