CN114189820B - Buoy data acquisition system and control method - Google Patents
Buoy data acquisition system and control method Download PDFInfo
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- CN114189820B CN114189820B CN202111363097.9A CN202111363097A CN114189820B CN 114189820 B CN114189820 B CN 114189820B CN 202111363097 A CN202111363097 A CN 202111363097A CN 114189820 B CN114189820 B CN 114189820B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a buoy data acquisition system and a control method, wherein a LORA communication module, a 4G communication module and a Beidou short message communication module are designed, and when the LORA communication module can communicate, the LORA communication module is adopted to transmit data; when the LORA communication module cannot communicate and the 4G communication module can communicate, the 4G communication module is selected to transmit data; when the LORA communication module and the 4G communication module can not communicate, the Beidou short message communication module is selected for transmitting data, so that communication fusion and automatic switching of communication modes are realized, normal communication between the buoy data acquisition system and external equipment is ensured, the communication success rate is improved, data transmission is facilitated, and the reliability and stability of data transmission are ensured.
Description
Technical Field
The invention belongs to the technical field of buoy data acquisition, and particularly relates to a buoy data acquisition system and a control method.
Background
The method is characterized in that the method is a land country and a marine country, and is an important point of marine research in China. The ocean buoy is convenient to place and good in sustainable working performance, and is an important method for monitoring the current ocean environment.
Ocean buoy information collection systems typically collect various elements of the ocean by sensors disposed on the buoy and transmit data back through communication functions. However, how to safely, effectively and erroneously transmit the data collected by the sensor back to the shore-based center is always a difficult point, and the 4G network transmission can only be used in places covered by an offshore wireless network, so that the space communication can be used in open sea, but the communication rate is higher, the cost is high, and the power consumption is increased due to the simultaneous operation of various sensors. The existing buoy system has the problems that the transmission method is single, the working mode is fixed, the environment requirement is strict, the near and far sea areas cannot be covered by only one transmission method, the communication success rate is low, the data transmission is difficult, and the like.
Disclosure of Invention
The invention provides a buoy data acquisition system, which improves the communication success rate.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme:
a buoy data acquisition system comprising:
the control system comprises a main control board;
the sensor system is used for collecting data and sending the collected data to the main control board;
the data transmission system comprises a LORA communication module, a 4G communication module and a Beidou short message communication module; the LORA communication module, the 4G communication module and the Beidou short message communication module are respectively connected with the main control board for communication;
the main control board detects whether LORA communication information is received or not; if LORA communication information is received, the 4G communication module and the Beidou short message communication module are closed, and the LORA communication module is adopted to communicate with external equipment;
if LORA communication information is not received, detecting whether 4G communication information is received, if the 4G communication information is received, closing the LORA communication module and the Beidou short message communication module, and communicating with external equipment by adopting the 4G communication module;
if LORA communication information and 4G communication information are not received, closing the LORA communication module and the 4G communication module, and communicating with external equipment by adopting the Beidou short message communication module.
Further, the sensor system comprises an electronic compass, a meteorological sensor, a seawater sensor, a Beidou receiver and a wave sensor.
Still further, buoy data acquisition system still includes power module, power module is electronic compass, meteorological sensor, sea water sensor, big dipper receiver, wave sensor, LORA communication module, 4G communication module, big dipper short message communication module power supply respectively, is provided with an opto-coupler relay on every power supply line respectively, the main control board passes through opto-coupler relay control power supply line's break-make.
Furthermore, when the electronic compass/the weather sensor/the seawater sensor are not required to collect data, the main control board controls the power supply circuit of the electronic compass/the weather sensor/the seawater sensor to be disconnected;
when the electronic compass/the weather sensor/the seawater sensor are required to acquire data, the main control board controls the power supply circuit of the electronic compass/the weather sensor/the seawater sensor to be conducted, and sends a query instruction to the electronic compass/the weather sensor/the seawater sensor;
and after the electronic compass/the meteorological sensor/the seawater sensor receive the inquiry command, acquiring data and sending the data to the main control board.
Still further, the Beidou receiver and the wave sensor have respective data acquisition periods;
during the data acquisition period of each Beidou receiver/wave sensor,
when the Beidou receiver/wave sensor does not collect data, the main control board controls the power supply line of the Beidou receiver/wave sensor to be disconnected;
when the Beidou receiver/wave sensor collects data, the main control board controls the power supply circuit of the Beidou receiver/wave sensor to be conducted.
Further, when the 4G communication module is adopted to communicate with external equipment, the data acquisition period of the Beidou receiver is T11;
when the LORA communication module is adopted to communicate with external equipment, the data acquisition period of the Beidou receiver is T12;
when the Beidou short message communication module is adopted to communicate with external equipment, the data acquisition period of the Beidou receiver is T13;
T11＜T12＜T13。
still further, when the 4G communication module is adopted to communicate with external equipment, the data acquisition period of the wave sensor is T21;
when the LORA communication module is used for communicating with external equipment, the data acquisition period of the wave sensor is T22;
when the Beidou short message communication module is adopted to communicate with external equipment, the data acquisition period of the wave sensor is T23;
T21＜T22＜T23。
furthermore, the main control board analyzes the received collected data, encapsulates the collected data and stores the encapsulated data into a storage module of the main control board.
Still further, the storing the collected data and the encapsulated data in the storage module of the main control board specifically includes:
checking whether a current date catalog exists on the storage module;
if the data type does not exist, a current date catalog is created according to the current date, and then the collected data and the packaged data are stored in a corresponding document under the current date catalog according to the data type;
and if the data exists, storing the acquired data and the packaged data into the corresponding document under the current date list according to the data type.
A control method based on the buoy data acquisition system comprises the following steps:
after the main control board is electrified, detecting whether each device of the acquisition system is normal or not;
when detecting that the equipment is abnormal, uploading abnormal data to a shore-based center, resetting the whole acquisition system, and detecting whether each equipment is normal again;
when detecting that all the devices are normal, the main control board controls the sensor system to acquire data;
the main control board receives the acquired data sent by the sensor system and processes the received acquired data;
and the main control board transmits the processed data outwards through a data transmission system.
Compared with the prior art, the invention has the advantages and positive effects that: according to the buoy data acquisition system and the control method, the LORA communication module, the 4G communication module and the Beidou short message communication module are designed, and when the LORA communication module can communicate, the LORA communication module is adopted to transmit data; when the LORA communication module cannot communicate and the 4G communication module can communicate, the 4G communication module is selected to transmit data; when the LORA communication module and the 4G communication module can not communicate, the Beidou short message communication module is selected for transmitting data, so that communication fusion and automatic switching of communication modes are realized, normal communication between the buoy data acquisition system and external equipment is ensured, the communication success rate is improved, data transmission is facilitated, and the reliability and stability of data transmission are ensured.
Other features and advantages of the present invention will become apparent upon review of the detailed description of the invention in conjunction with the drawings.
Drawings
FIG. 1 is a block diagram of one embodiment of a buoy data collection system according to the present invention;
FIG. 2 is a flow chart of one embodiment of a method of controlling a buoy data collection system according to the present invention;
fig. 3 is a communication module switching flowchart.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples.
Aiming at the problems that the existing buoy has single communication method, cannot adapt to near and far sea conditions, has poor communication success rate and high environmental requirements, and various sensors cause high power consumption, limited working time and the like, the invention provides a communication fusion buoy data acquisition system which comprises the following steps: in the aspect of data acquisition, a multipath 232 serial port and a multipath 485 serial port are adopted, water quality, weather, waves, an electronic compass and Beidou positioning data are acquired in an interrupt mode, and when the sensor does not need to work, the on-off of the sensor is controlled through a relay, so that the purpose of reducing power consumption is achieved; in the aspect of communication, a method of 4G, LORA and Beidou short message fusion communication is adopted, when the communication environment changes, the communication mode is automatically switched, and data is stably and real-timely transmitted back to the shore-based center and the shipboard receiving station.
Aiming at the problems of difficult buoy data transmission, low communication success rate and the like, the invention provides a buoy data acquisition system and a control method. The buoy data collection system and control method are described in detail in the following by way of specific embodiments.
The buoy data acquisition system of the embodiment is arranged on a buoy and mainly comprises a control system, a sensor system, a data transmission system and the like.
The control system comprises a main control board, wherein the main control board is a control center of the whole acquisition system and controls the operation of the whole acquisition system.
A sensor system including various sensors for collecting various data; the sensor system sends the acquired data to the main control board. The sensor system may acquire various monitoring data including positional information of the buoy, environmental information around the buoy, and the like.
The data transmission system comprises a LORA communication module, a 4G communication module and a Beidou short message communication module, and is shown in a figure 1; LORA communication module, 4G communication module, big dipper short message communication module are connected communication with the main control board respectively. The baud rate of the LORA communication module, the 4G communication module and the Beidou short message communication module is 115200, and an RS232 communication protocol is adopted.
When the main control board needs to communicate with external equipment, the main control board starts a LORA communication module, a 4G communication module and a Beidou short message communication module; the LORA communication module sends the LORA communication information to the main control board when receiving the LORA communication information; the 4G communication module sends the 4G communication information to the main control board when receiving the 4G communication information; and the Beidou short message communication module sends the short message communication information to the main control board when receiving the short message communication information.
The main control board detects whether LORA communication information is received; if LORA communication information is received, the 4G communication module and the Beidou short message communication module are closed, and the LORA communication module is adopted to communicate with external equipment; the data is sent by the LORA communication module.
If LORA communication information is not received, detecting whether 4G communication information is received, if the 4G communication information is received, closing the LORA communication module and the Beidou short message communication module, and communicating with external equipment by adopting the 4G communication module; the data is transmitted by the 4G communication module.
If LORA communication information and 4G communication information are not received, closing the LORA communication module and the 4G communication module, and communicating with external equipment by adopting the Beidou short message communication module; and sending data by the Beidou short message communication module.
LORA communication, 4G communication and short message communication respectively correspond to three modes of near-field communication, offshore communication and open sea communication.
When the communication distance of the LORA communication mode at sea can reach 8KM and the on-board terminal is used near the buoy, after the main control board receives LORA connection information, only the LORA communication module is reserved to work, other communication modules are closed, and real-time buoy information is received on the on-board terminal through the LORA gateway.
When the buoy is located offshore, the master control board does not receive LORA connection information, but only keeps the 4G communication module to work after receiving 4G communication information, closes other communication modules, reduces data acquisition time intervals, and acquires more data by means of high bandwidth of 4G communication.
When the buoy is located in the open sea, the main control board only keeps the Beidou short message communication module when the main control board cannot receive LORA communication information and 4G communication information, the main control board closes other communication modules, the main control board is limited by the Beidou short message communication frequency, the transmission data amount in unit time is limited, the data acquisition interval is increased, and the stability and the integrity of data return are ensured.
According to the buoy data acquisition system, the LORA communication module, the 4G communication module and the Beidou short message communication module are designed, and when the LORA communication module can communicate, the LORA communication module is adopted to transmit data; when the LORA communication module cannot communicate and the 4G communication module can communicate, the 4G communication module is selected to transmit data; when the LORA communication module and the 4G communication module can not communicate, the Beidou short message communication module is selected for transmitting data, so that communication fusion and automatic switching of communication modes are realized, normal communication between the buoy data acquisition system and external equipment is ensured, the communication success rate is improved, data transmission is facilitated, and the reliability and stability of data transmission are ensured.
In this embodiment, the sensor system includes an electronic compass, a weather sensor, a sea water sensor, a Beidou receiver, a wave sensor, etc., so that the positioning of the buoy and the monitoring data around the buoy can be obtained. The electronic compass, the meteorological sensor, the seawater sensor, the Beidou receiver and the wave sensor respectively send acquired data to the main control board.
And the electronic compass is used for acquiring the gesture data and the position data of the buoy and realizing navigation and positioning.
And the Beidou receiver is used for acquiring Beidou positioning data and realizing navigation positioning.
And the meteorological sensor is used for acquiring meteorological data.
And the seawater sensor is used for acquiring water quality data.
And the wave sensor is used for acquiring wave data.
Wherein, the wave sensor and the electronic compass adopt an RS232 communication protocol, and the baud rate is 9600; the Beidou receiver, the weather sensor and the seawater sensor adopt an RS485 communication protocol, and the baud rates are 9600, 19200 and 9600 respectively. The electronic compass, the weather sensor and the seawater sensor are in an active query mode, and return corresponding data only after receiving a query instruction; the Beidou receiver and the wave sensor are in a passive query mode, and actively transmit data after generating the data.
In this embodiment, in order to be convenient for supply power for each consumer on the buoy, buoy data acquisition system still includes power module, and power module is electron compass, meteorological sensor, sea water sensor, big dipper receiver, wave sensor, LORA communication module, 4G communication module, big dipper short message communication module power supply respectively, is provided with an opto-coupler relay on every power supply line respectively, and the main control board passes through opto-coupler relay control power supply line's break-make.
Through setting up the opto-coupler relay on every power supply line, both convenient control power supply line's break-make can realize keeping apart again, guarantees the safety of main control board and each consumer.
The main control board supplies power through the power supply module and controls whether each sensor is electrified or not through each relay.
Specifically, the power supply module comprises a power supply A, a power supply B, a power supply C, a power supply D, a power supply E, a power supply F, a power supply G, a power supply H, a power supply J and 8 optocoupler relays; the power supply A is a seawater sensor power supply, the power supply B is a Beidou short message communication module power supply, the power supply C is a LORA communication module power supply, the power supply D is a 4G communication module power supply, the power supply E is a main control board power supply, the power supply F is a wave sensor power supply, the power supply G is an electronic compass power supply, the power supply H is a Beidou receiver power supply, and the power supply I is a meteorological sensor power supply. The power supply E is connected with the main control board through a power supply line, wherein an optical coupling relay is arranged on a power supply line between the power supply E and the main control board, and the other eight power supply lines are all provided with an optical coupling relay, and the main control board is used for controlling the on-off of 8 optical coupling relays and controlling the electrification of 5 sensors and 3 communication modules.
When a certain electric equipment is required to work, the main control board controls the optical coupler relay on the corresponding power supply line to be closed, and further controls the corresponding power supply line to be conducted; when a certain electric equipment is not needed to work, the main control board controls the optical coupler relay on the corresponding power supply line to be turned off, and further controls the corresponding power supply line to be turned off, so that the effects of saving electricity and saving energy are achieved.
In this embodiment, the electronic compass, the weather sensor and the seawater sensor are active query modes, and return to collect data after receiving a query instruction of the main control board.
When the electronic compass/the meteorological sensor/the seawater sensor are not required to collect data, the main control board controls the power supply circuit of the electronic compass/the meteorological sensor/the seawater sensor to be disconnected;
when the electronic compass/the weather sensor/the seawater sensor are required to acquire data, the main control board controls the power supply circuit of the electronic compass/the weather sensor/the seawater sensor to be conducted, and sends a query instruction to the electronic compass/the weather sensor/the seawater sensor;
and after the electronic compass/the meteorological sensor/the seawater sensor receive the inquiry command, acquiring data and sending the acquired data to the main control board.
Through the design, the power is supplied to the electronic compass/the weather sensor/the seawater sensor only when the electronic compass/the weather sensor/the seawater sensor is required to collect data, so that the power consumption can be reduced, the electricity and the energy can be saved, and the service time of the buoy can be prolonged.
In this embodiment, the Beidou receiver and the wave sensor are in a passive query mode, and actively send the acquired data to the main control board.
The Beidou receiver and the wave sensor are both used for periodically acquiring data, and have respective data acquisition periods.
In the data acquisition period of each Beidou receiver/wave sensor, when the Beidou receiver/wave sensor does not acquire data, the main control board controls the power supply line of the Beidou receiver/wave sensor to be disconnected;
in the data acquisition period of each Beidou receiver/wave sensor, when the Beidou receiver/wave sensor acquires data, the main control board controls the power supply circuit of the Beidou receiver/wave sensor to be conducted.
Through the design, in a data acquisition period, power is supplied to the north bucket receiver/wave sensor only when the Beidou receiver/wave sensor performs data acquisition, so that power consumption can be reduced, electricity and energy are saved, and the service time of the buoy is prolonged.
In this embodiment, when the 4G communication module, the LORA communication module, and the beidou short message communication module are respectively used to communicate with external devices, the data acquisition period of the beidou receiver gradually increases.
Specifically, when the 4G communication module is adopted to communicate with external equipment, the data acquisition period of the Beidou receiver is T11; when the LORA communication module is adopted to communicate with external equipment, the data acquisition period of the Beidou receiver is T12; when the Beidou short message communication module is adopted to communicate with external equipment, the data acquisition period of the Beidou receiver is T13; t11 is less than T12 and less than T13.
When the 4G communication module is used for communicating with external equipment, the Beidou receiver is small in data acquisition period (namely, small in data acquisition interval), and more data are acquired by means of high bandwidth of 4G communication.
When the LORA communication module is used for communicating with external equipment, the data acquisition period of the Beidou receiver is moderate (namely, the data acquisition interval is moderate).
When the Beidou short message communication module is adopted to communicate with external equipment, the Beidou short message communication module is limited by the Beidou short message communication frequency, the transmission data quantity in unit time is limited, the data acquisition period of the Beidou receiver is large (namely, the data acquisition interval is large), and the stability and the integrity of data return are ensured.
Therefore, when different communication modules are adopted to communicate with external equipment, the data acquisition periods of the Beidou receiver are different, so that the stability and the integrity of data uploading are ensured.
In this embodiment, when the 4G communication module, the LORA communication module, and the beidou short message communication module are respectively used to communicate with external devices, the data acquisition period of the wave sensor gradually increases.
Specifically, when the 4G communication module is used for communicating with external equipment, the data acquisition period of the wave sensor is T21; when the LORA communication module is used for communicating with external equipment, the data acquisition period of the wave sensor is T22; when the Beidou short message communication module is adopted to communicate with external equipment, the data acquisition period of the wave sensor is T23; t21 < T22 < T23.
When the 4G communication module is used for communicating with external equipment, the wave sensor has a small data acquisition period (namely, a small data acquisition interval), and more data are acquired by means of the high bandwidth of the 4G communication.
When the LORA communication module is used for communicating with external equipment, the data acquisition period of the wave sensor is moderate (namely, the data acquisition interval is moderate).
When the Beidou short message communication module is adopted to communicate with external equipment, the Beidou short message communication module is limited by the Beidou short message communication frequency, the transmission data quantity in unit time is limited, the data acquisition period of the wave sensor is large (namely, the data acquisition interval is large), and the stability and the integrity of data return are ensured.
Therefore, when different communication modules are adopted to communicate with external equipment, the data acquisition period of the wave sensor is different, so that the stability and the integrity of data uploading are ensured.
During data acquisition, the baud rate and the data bit number of each sensor are firstly configured through the main control board. And then, setting inquiry interval time of the electronic compass, the meteorological sensor and the seawater sensor, inquiring data according to the corresponding time interval, and controlling the corresponding sensor to be powered off by the main control board through the relay when the sensor does not work, and supplying power only when inquiring data, so as to achieve the purpose of reducing power consumption. The main control board is provided with a data acquisition period of the Beidou receiver and the wave sensor; the wave sensor collects wave data every 20 minutes, needs to be in a working state all the time, and cuts off a power supply circuit through the relay only when the wave data are not needed. The Beidou receiver collects Beidou positioning data once every 20 minutes, and only cuts off a power supply line through the relay when the Beidou positioning data are not needed.
And a storage module, such as a TF memory card, with a capacity of 128G is arranged on the main control board. The storage module is used for storing various data received by the main control board.
In this embodiment, the sensor system sends the acquired data to the main control board, the main control board parses the received acquired data, then encapsulates the acquired data, and stores the original acquired data and the encapsulated data in the storage module of the main control board, so as to facilitate later inspection.
In this embodiment, the storing the collected data and the encapsulated data in the storage module of the main control board specifically includes:
first it is checked whether there is a current date directory on the storage module.
If the current date catalog does not exist, the current date catalog is created according to the current date, a plurality of documents are created under the current date catalog, each document corresponds to one data type (namely corresponds to one sensor), and then the collected data and the packaged data are stored into the corresponding document under the current date catalog according to the data type.
And if the current date catalog exists, directly storing the acquired data and the packaged data into a corresponding document under the current date catalog according to the data type.
Through the storage operation, the original acquired data and the newly packaged data of each sensor can be quickly found in the later period, and the inspection is facilitated.
The sensors are different in data type, and therefore, the different types of data refer to the data of the different sensors. And creating a corresponding document for each sensor under the current date directory, wherein the corresponding document is used for storing the original acquired data of each sensor and the packaged data. For example, in this embodiment, 5 documents are created under the current date directory, and are used to store the original collected data and the packaged data of the electronic compass, the weather sensor, the seawater sensor, the Beidou receiver and the wave sensor, respectively.
The file system in the main control board adopts a FatFs system, which is an open-source FAT file system commonly used in small embedded systems, and has good hardware independence.
After the buoy terminal is started, after the original collected data of each sensor is obtained, the main control board checks whether a current date catalog exists, the catalog naming rule is YYYY-MM-DD, if the catalog does not exist, the catalog is created according to the current date, and if the catalog exists, different types of data are respectively stored in corresponding documents, so that the original collected data and the newly packaged data can be checked after the buoy is recovered, and the safety and the integrity of the data are ensured.
The newly encapsulated data structure is described below.
After the main control board receives the collected data of each sensor, data analysis is carried out on different types of data types according to corresponding protocols, the data are repackaged and packed into a new data, and the original collected data and the newly packed data are stored under the current date directory in the storage module.
The newly packaged data consists of a protocol header, a data area and a protocol check, which is shown in table 1, wherein the protocol header comprises a protocol header identifier, a buoy identifier, a data identifier and a data length part, the length of each part is one byte, the length of the data area is determined by the data identifier, and the check code of the protocol adopts an exclusive-or check mode. The composition of the newly encapsulated data is shown in table 1. The correspondence between the data identifier and the content of the data area is shown in table 2.
TABLE 1
TABLE 2
And after the data are packaged and stored, data transmission work is carried out, and the LORA communication module, the 4G communication module and the Beidou short message communication module are automatically switched to upload data, so that the communication success rate is improved.
The embodiment provides a buoy data acquisition system with communication fusion, which comprises subsystems such as data acquisition, data storage, control systems, data transmission and the like, can realize data acquisition and transmission of near-sea and far-sea buoys, and solves the problems of overhigh power consumption, low communication success rate, difficult data transmission and the like in the working process of the far sea.
According to the buoy data acquisition system, data is received through multiple serial ports, and the on-off of the sensor is controlled, so that the effectiveness and safety of data acquisition are guaranteed, the power consumption of the buoy is reduced more effectively, and the working time of the buoy is prolonged; the data is transmitted by the fusion communication method, so that the problem that the data cannot be transmitted back in real time when the mobile communication network signal is poor is solved, and a new idea is provided for the open sea transmission and the shipborne reception.
Based on the design of the buoy data acquisition system, the embodiment also provides a control method based on the buoy data acquisition system, which mainly comprises the following steps, and the control method is shown in fig. 2.
(1) After the main control board is electrified, detecting whether each device of the acquisition system is normal.
(2) When detecting that the equipment is abnormal, uploading abnormal data to a shore-based center, resetting the whole acquisition system, and detecting whether the equipment is normal again.
(3) When detecting that all the devices are normal, the main control board controls the sensor system to collect data.
(4) The main control board receives the acquired data sent by the sensor system and processes the received acquired data. The processing of the main control board to the collected data specifically comprises: analyzing the acquired data, then packaging the acquired data, and packaging the acquired data into a new piece of data. The main control board stores the original acquired data and the newly packaged data into the storage module.
(5) And the main control board sends the processed data outwards through a data transmission system and uploads the processed data to the shore-based center.
Referring to fig. 3, when the main control board transmits data through the data transmission system, the main control board detects whether the LORA communication information is received; if LORA communication information is received, the 4G communication module and the Beidou short message communication module are closed, and the LORA communication module is adopted to communicate with external equipment; the data is sent by the LORA communication module.
If LORA communication information is not received, detecting whether 4G communication information is received, if the 4G communication information is received, closing the LORA communication module and the Beidou short message communication module, and communicating with external equipment by adopting the 4G communication module; the data is transmitted by the 4G communication module.
If LORA communication information and 4G communication information are not received, closing the LORA communication module and the 4G communication module, and communicating with external equipment by adopting the Beidou short message communication module; and sending data by the Beidou short message communication module.
The control method based on the buoy data acquisition system can realize data acquisition and transmission of near and far sea buoys, and solves the problems of overhigh power consumption, low communication success rate, difficult data transmission and the like in the open sea operation.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (6)
1. A buoy data collection system, characterized by: comprising the following steps:
the control system comprises a main control board;
the sensor system is used for collecting data and sending the collected data to the main control board;
the data transmission system comprises a LORA communication module, a 4G communication module and a Beidou short message communication module; the LORA communication module, the 4G communication module and the Beidou short message communication module are respectively connected with the main control board for communication;
the main control board detects whether LORA communication information is received or not; if LORA communication information is received, the 4G communication module and the Beidou short message communication module are closed, and the LORA communication module is adopted to communicate with external equipment;
if LORA communication information is not received, detecting whether 4G communication information is received, if the 4G communication information is received, closing the LORA communication module and the Beidou short message communication module, and communicating with external equipment by adopting the 4G communication module;
if LORA communication information and 4G communication information are not received, closing the LORA communication module and the 4G communication module, and communicating with external equipment by adopting the Beidou short message communication module;
the sensor system comprises an electronic compass, a meteorological sensor, a seawater sensor, a Beidou receiver and a wave sensor;
the Beidou receiver and the wave sensor have respective data acquisition periods;
during the data acquisition period of each Beidou receiver/wave sensor,
when the Beidou receiver/wave sensor does not collect data, the main control board controls the power supply line of the Beidou receiver/wave sensor to be disconnected;
when the Beidou receiver/wave sensor collects data, the main control board controls the power supply circuit of the Beidou receiver/wave sensor to be conducted;
when the 4G communication module is adopted to communicate with external equipment, the data acquisition period of the Beidou receiver is T11;
when the LORA communication module is adopted to communicate with external equipment, the data acquisition period of the Beidou receiver is T12;
when the Beidou short message communication module is adopted to communicate with external equipment, the data acquisition period of the Beidou receiver is T13; t11 is more than T12 and less than T13;
when the 4G communication module is used for communicating with external equipment, the data acquisition period of the wave sensor is T21;
when the LORA communication module is used for communicating with external equipment, the data acquisition period of the wave sensor is T22;
when the Beidou short message communication module is adopted to communicate with external equipment, the data acquisition period of the wave sensor is T23; t21 < T22 < T23.
2. The buoy data collection system of claim 1, wherein: the buoy data acquisition system further comprises a power supply module, wherein the power supply module is respectively provided with an optical coupler relay on each power supply line, and the main control board controls the on-off of a power supply line through the optical coupler relay.
3. The buoy data collection system of claim 1, wherein:
when the electronic compass/the meteorological sensor/the seawater sensor are not required to collect data, the main control board controls the power supply circuit of the electronic compass/the meteorological sensor/the seawater sensor to be disconnected;
when the electronic compass/the weather sensor/the seawater sensor are required to acquire data, the main control board controls the power supply circuit of the electronic compass/the weather sensor/the seawater sensor to be conducted, and sends a query instruction to the electronic compass/the weather sensor/the seawater sensor;
and after the electronic compass/the meteorological sensor/the seawater sensor receive the inquiry command, acquiring data and sending the data to the main control board.
4. A buoy data collection system according to any one of claims 1 to 3, wherein: the main control board analyzes the received collected data, encapsulates the collected data and stores the encapsulated data into a storage module of the main control board.
5. The buoy data collection system of claim 4, wherein: the storage module for storing the acquired data and the encapsulated data into the main control board specifically comprises:
checking whether a current date catalog exists on the storage module;
if the data type does not exist, a current date catalog is created according to the current date, and then the collected data and the packaged data are stored in a corresponding document under the current date catalog according to the data type;
and if the data exists, storing the acquired data and the packaged data into the corresponding document under the current date list according to the data type.
6. A control method based on a buoy data acquisition system according to any one of claims 1 to 5, characterized in that: comprising the following steps:
after the main control board is electrified, detecting whether each device of the acquisition system is normal or not;
when detecting that the equipment is abnormal, uploading abnormal data to a shore-based center, resetting the whole acquisition system, and detecting whether each equipment is normal again;
when detecting that all the devices are normal, the main control board controls the sensor system to acquire data;
the main control board receives the acquired data sent by the sensor system and processes the received acquired data;
and the main control board transmits the processed data outwards through a data transmission system.
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