CN112992149B - Information transmission method and system for very high frequency radio station of offshore oil platform - Google Patents
Information transmission method and system for very high frequency radio station of offshore oil platform Download PDFInfo
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- CN112992149B CN112992149B CN202110243392.4A CN202110243392A CN112992149B CN 112992149 B CN112992149 B CN 112992149B CN 202110243392 A CN202110243392 A CN 202110243392A CN 112992149 B CN112992149 B CN 112992149B
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- 238000004891 communication Methods 0.000 abstract description 23
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/26—Speech to text systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
The invention discloses an information transmission method and system of a very high frequency radio station of an offshore oil platform.A sending end receives original voice and converts the original voice into text information; the transmitting end fills a preset input menu according to the text information to obtain information to be transmitted; the sending end carries out digital information coding according to the information to be sent to obtain coded information to be sent, and the coded information to be sent is sent to the receiving end through very high frequency; the receiving end analyzes the coding information to be sent to obtain information to be displayed and information to be played, displays the information to be displayed and plays the information to be played; the invention unifies the format through the preset input menu, so that the receiver can more easily notice the required content after acquiring the information, and the problem that the information is easy to leak due to voice broadcasting only in the traditional mode is avoided by displaying the matched voice mode, thereby realizing the automatic recording of the communication content.
Description
Technical Field
The invention relates to the field of communication, in particular to an information transmission method and system of a very high frequency radio station of an offshore oil platform.
Background
The very high frequency radio station is an important guarantee device for taking off and landing of a helicopter of an offshore oil drilling platform, and is mainly used for personnel to carry out low-altitude conversation between a ground platform and the helicopter.
The VHF radio station has the function of conventional Amplitude Modulation (AM) voice data communication, and the ground VHF ground-air radio station is matched with an airborne VHF ground-air radio station and a ground antenna feeder system to form a ground-air voice communication system for: 1. commanding entry and exit of helicopter; 2, broadcasting meteorological information of a ground platform; 3. confirming the boarding and disembarking of the platform personnel; 4. and (5) confirming the loading and unloading of the platform materials.
In the traditional technology, all the information is transmitted through voice communication, if the interactive information is too much and too fast or dialect exists, a pilot needs to carefully identify conversation voice, pilot driving is easily distracted, flight safety risk is increased, meanwhile, the interactive information is easily inaccurate due to communication errors or memory failure in the voice interaction process, and the actual use effect is easily influenced;
if the voice and digital communication is to be carried out simultaneously, the newly used system in the existing civil aviation is a very high frequency ground-air data communication network of the China civil aviation, the built system is complex, 5 large systems are needed to be combined to work normally, and the system is respectively a network control and data processing center (NMDPS), a ground VHF-air data communication station (RGS), a network for connecting the network control with each ground RGS and users, an airline special application system (AOC) and an air traffic control system special application facility (ATC), and the systems are huge and complex and have long building time in the civil aviation; while it is desirable to use it in marine platforms, there is a high cost problem in that the ground-to-air data communication station (RGS) is a bridge connecting the aircraft to the NMDPS and is comprised of VHF transceiver units, computer units, integrated control units, routers, GPS and corresponding software. The VHF transceiver unit for ACARS at the airborne end mainly adopts FSK and GMSK modes to modulate, can only complete data communication, and is different from the existing amplitude modulation A3E modulation mode, and a VHF is required to be independently equipped for voice communication, so that the comprehensive cost is high, and the reconstruction and application are difficult.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the information transmission method and the system for the very high frequency radio station of the offshore oil platform are provided, and automatic recording of communication content is achieved.
In order to solve the technical problems, the invention adopts a technical scheme that:
an information transmission method of an offshore oil platform very high frequency radio station comprises the following steps:
s1, a sending end receives original voice and converts the original voice into text information;
s2, the transmitting end fills a preset input menu according to the text information to obtain information to be transmitted;
s3, the sending end carries out digital information coding according to the information to be sent to obtain coded information to be sent, and the coded information to be sent is sent to a receiving end through very high frequency;
s4, the receiving end analyzes the coding information to be sent to obtain information to be displayed and information to be played, displays the information to be displayed and plays the information to be played.
In order to solve the technical problems, the invention adopts another technical scheme that:
the information transmission system of the offshore oil platform very high frequency radio station comprises a transmitting end and a receiving end, wherein the transmitting end comprises a first memory, a first processor and a first computer program which is stored in the first memory and can run on the first processor, the receiving end comprises a second memory, a second processor and a second computer program which is stored in the second memory and can run on the second processor, and the following steps are realized when the first processor executes the first computer program:
s1, a sending end receives original voice and converts the original voice into text information;
s2, the transmitting end fills a preset input menu according to the text information to obtain information to be transmitted;
s3, the sending end carries out digital information coding according to the information to be sent to obtain coded information to be sent, and the coded information to be sent is sent to a receiving end through very high frequency;
the second processor, when executing the second computer program, performs the steps of:
s4, the receiving end analyzes the coding information to be sent to obtain information to be displayed and information to be played, displays the information to be displayed and plays the information to be played.
The invention has the beneficial effects that: the method comprises the steps that after receiving original voice, a sending end converts the original voice into text information, a preset input menu is filled according to the text information, the text information is encoded and then sent to a receiving end through very high frequency, and after decoding, the receiving end plays corresponding information; under the condition that the same content can be broadcast by different persons in different orders by voice, the formats are unified through the preset input menu, so that a receiver can more easily notice the required content after acquiring the information, and the problem that the information is easy to leak due to voice broadcasting in the traditional mode is avoided by displaying the mode matched with voice, and the automatic recording of the communication content is realized.
Drawings
FIG. 1 is a flow chart showing the steps of a method for transmitting information from a very high frequency station of an offshore oil platform according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an information transmission system of a vhf station of an offshore oil platform according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an information transmission system of a very high frequency station of an offshore oil platform according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a modulated wave according to an embodiment of the present invention;
FIG. 5 is a flow chart of a method for transmitting information from a very high frequency station of an offshore oil platform according to an embodiment of the present invention;
description of the reference numerals:
1. a transmitting end; 11. a first processor; 12. a first memory; 2. a receiving end; 21. a second processor; 22. a second memory; 3. an information transmission system memory of an offshore oil platform very high frequency radio station.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 and fig. 3 to fig. 5, an information transmission method of a vhf station of an offshore oil platform includes the steps of:
s1, a sending end receives original voice and converts the original voice into text information;
s2, the transmitting end fills a preset input menu according to the text information to obtain information to be transmitted;
s3, the sending end carries out digital information coding according to the information to be sent to obtain coded information to be sent, and the coded information to be sent is sent to a receiving end through very high frequency;
s4, the receiving end analyzes the coding information to be sent to obtain information to be displayed and information to be played, displays the information to be displayed and plays the information to be played.
From the above description, the beneficial effects of the invention are as follows: the method comprises the steps that after receiving original voice, a sending end converts the original voice into text information, a preset input menu is filled according to the text information, the text information is encoded and then sent to a receiving end through very high frequency, and after decoding, the receiving end plays corresponding information; under the condition that the same content can be broadcast by different persons in different orders by voice, the formats are unified through the preset input menu, so that a receiver can more easily notice the required content after acquiring the information, and the problem that the information is easy to leak due to voice broadcasting in the traditional mode is avoided by displaying the mode matched with voice, and the automatic recording of the communication content is realized.
Further, the S1 specifically is:
s1, a sending end receives original voice, the original voice is converted into text information, and the original voice comprises weather information, platform personnel information and platform material information;
the step S2 is specifically as follows:
and the transmitting end fills a preset meteorological information input menu, a platform personnel on-off plane information input menu and a platform material on-off plane input menu according to the text information to obtain information to be transmitted.
From the above description, weather information, platform personnel information, platform material information and platform material information included in the original voice are respectively input into corresponding menus to obtain information to be sent, and the information is classified and conveniently partitioned when displayed, so that a user at a receiving end can conveniently confirm the information.
Further, in the step S3, the step of performing digital information encoding by the transmitting end according to the information to be transmitted to obtain encoded information to be transmitted specifically includes:
the sending end carries out digital information coding according to the information to be sent and a preset digital information coding protocol to obtain the information to be sent, which comprises a protocol head, a command word, a command length, a command text, a check code and a protocol tail, wherein the protocol head and the protocol tail are respectively provided with corresponding digital identifications;
the coded information to be transmitted consists of numbers or letters.
From the above description, the custom protocol format performs digital encoding to convert text information into encoded information to be transmitted, which is composed of numbers or letters.
Further, in the step S3, the sending the coding information to be sent to the receiving end through the vhf specifically includes:
whether a sine wave with 8kHz exists respectively represents a digital signal 0 or 1, and the coding information to be transmitted is modulated according to the sine wave to obtain an initial wave to be transmitted;
modulating the initial to-be-transmitted wave and the original voice information by using the same very high frequency carrier wave to obtain a target to-be-transmitted wave;
and transmitting the target wave to be transmitted to a receiving end.
As can be seen from the above description, since the basic range of the voice frequency of most of the human body is 300Hz-3.4kHz, and part of the voice frequency can be up to 5kHz, and meanwhile, since the typical frequency interval range of the vhf radio used at sea is 25kHz, even in a worse case, the operating bandwidth range must fall within 25kHz range, and the bandwidth= 2*f occupied by the A3E debug mode is modulated, and considering that the double sampling value of the voice frequency in the receiver is set to f sampling frequency= 2*f voice, in the above case, the reference is selected to 8kHz >6.8kHz, the bandwidth occupied by digital communication is 16kHz, and the larger range avoids the critical value of 25kHz, and is also within the sampling range of the receiver; the 8kHz sine wave is used for representing the digital signal as an original waveform and is used as a carrier wave for modulation, so that the coded information to be transmitted is transmitted through the very high frequency, and only the traditional voice communication wave band is needed, and no additional expansion is needed.
Further, the step S4 specifically includes:
the receiving end demodulates the target wave to be sent and performs CRC check;
identifying the 8kHz signal by a detection circuit;
analyzing the 8kHz signal subjected to CRC to obtain information to be displayed, and displaying the information to be displayed on a display screen;
and synthesizing voice according to the information to be displayed to obtain the information to be played, and playing the information to be played through a loudspeaker.
According to the above description, the receiving end firstly checks the information after receiving the information, analyzes the information to be displayed in a reciprocal manner after the checking is passed, synthesizes voice according to the information to be displayed to obtain the information to be played, plays the information to be played through the loudspeaker while displaying, and is convenient for the personnel at the receiving end to check.
Referring to fig. 2, an information transmission system of an offshore oil platform vhf radio station includes a transmitting end and a receiving end, where the transmitting end includes a first memory, a first processor and a first computer program stored in the first memory and capable of running on the first processor, and the receiving end includes a second memory, a second processor and a second computer program stored in the second memory and capable of running on the second processor, and the first processor implements the following steps when executing the first computer program:
s1, a sending end receives original voice and converts the original voice into text information;
s2, the transmitting end fills a preset input menu according to the text information to obtain information to be transmitted;
s3, the sending end carries out digital information coding according to the information to be sent to obtain coded information to be sent, and the coded information to be sent is sent to a receiving end through very high frequency;
the second processor, when executing the second computer program, performs the steps of:
s4, the receiving end analyzes the coding information to be sent to obtain information to be displayed and information to be played, displays the information to be displayed and plays the information to be played.
The invention has the beneficial effects that: the method comprises the steps that after receiving original voice, a sending end converts the original voice into text information, a preset input menu is filled according to the text information, the text information is encoded and then sent to a receiving end through very high frequency, and after decoding, the receiving end plays corresponding information; under the condition that the same content can be broadcast by different persons in different orders by voice, the formats are unified through the preset input menu, so that a receiver can more easily notice the required content after acquiring the information, and the problem that the information is easy to leak due to voice broadcasting in the traditional mode is avoided by displaying the mode matched with voice, and the automatic recording of the communication content is realized.
Further, the S1 specifically is:
s1, receiving original voice, and converting the original voice into text information, wherein the original voice comprises weather information, platform personnel information and platform material information;
the step S2 is specifically as follows:
and filling a preset meteorological information input menu, a platform personnel on-off plane information input menu and a platform material on-off plane input menu according to the text information to obtain information to be transmitted.
From the above description, weather information, platform personnel information, platform material information and platform material information included in the original voice are respectively input into corresponding menus to obtain information to be sent, and the information is classified and conveniently partitioned when displayed, so that a user at a receiving end can conveniently confirm the information.
Further, the first processor executes the first computer program to implement the encoding of digital information according to the information to be sent in S3 to obtain the encoded information to be sent specifically:
carrying out digital information coding according to the information to be transmitted and a preset digital information coding protocol to obtain the information to be transmitted, wherein the information to be transmitted comprises a protocol head, a command word, a command length, a command text, a check code and a protocol tail, and the protocol head and the protocol tail are respectively provided with corresponding digital identifications;
the coded information to be transmitted consists of numbers or letters.
From the above description, the custom protocol format performs digital encoding to convert text information into encoded information to be transmitted, which is composed of numbers or letters.
Further, the first processor executing the first computer program to implement S3, where the sending, by the vhf, the encoded information to be sent and the original voice to the receiving end is specifically:
whether a sine wave with 8kHz exists respectively represents a digital signal 0 or 1, and the coding information to be transmitted is modulated according to the sine wave to obtain an initial wave to be transmitted;
modulating the initial to-be-transmitted wave and the original voice information by using the same very high frequency carrier wave to obtain a target to-be-transmitted wave;
and transmitting the target wave to be transmitted to a receiving end.
As can be seen from the above description, since the basic range of the voice frequency of most of the human body is 300Hz-3.4kHz, and part of the voice frequency can be up to 5kHz, and meanwhile, since the typical frequency interval range of the vhf radio used at sea is 25kHz, even in a worse case, the operating bandwidth range must fall within 25kHz range, and the bandwidth= 2*f occupied by the A3E debug mode is modulated, and considering that the double sampling value of the voice frequency in the receiver is set to f sampling frequency= 2*f voice, in the above case, the reference is selected to 8kHz >6.8kHz, the bandwidth occupied by digital communication is 16kHz, and the larger range avoids the critical value of 25kHz, and is also within the sampling range of the receiver; the 8kHz sine wave is used for representing the digital signal as an original waveform and is used as a carrier wave for modulation, so that the coded information to be transmitted is transmitted through the very high frequency, and only the traditional voice communication wave band is needed, and no additional expansion is needed.
Further, the step S4 specifically includes:
the receiving end demodulates the target wave to be sent and performs CRC check;
identifying the 8kHz signal by a detection circuit;
analyzing the 8kHz signal subjected to CRC to obtain information to be displayed, and displaying the information to be displayed on a display screen;
and synthesizing voice according to the information to be displayed to obtain the information to be played, and playing the information to be played through a loudspeaker.
According to the above description, the receiving end firstly checks the information after receiving the information, analyzes the information to be displayed in a reciprocal manner after the checking is passed, synthesizes voice according to the information to be displayed to obtain the information to be played, plays the information to be played through the loudspeaker while displaying, and is convenient for the personnel at the receiving end to check.
Referring to fig. 1 and fig. 3-5, a first embodiment of the present invention is as follows:
an information transmission method of an offshore oil platform very high frequency radio station comprises the following steps:
s1, a sending end receives original voice, the original voice is converted into text information, and the original voice comprises weather information, platform personnel information and platform material information;
specifically, the weather information includes temperature, humidity, wind direction, wind speed, air pressure, etc.;
the information of the platform personnel on and off the aircraft comprises the number of the people on the platform, the names of the people on the platform, etc.;
the platform material upper and lower plane information comprises an upper platform material code, an upper platform material quantity, a lower platform material code and a lower platform material quantity;
s2, the transmitting terminal fills a preset meteorological information input menu, a platform personnel on-off plane information input menu and a platform material on-off plane input menu according to the text information to obtain information to be transmitted;
in an optional implementation manner, the transmitting end receives the modification information and updates the information to be transmitted according to the modification information;
s3, the sending end carries out digital information coding according to the information to be sent to obtain coded information to be sent, and the coded information to be sent is sent to a receiving end through very high frequency;
s4, the receiving end analyzes the coding information to be sent to obtain information to be displayed and information to be played, displays the information to be displayed and plays the information to be played;
s4 specifically comprises the following steps:
the receiving end demodulates the target wave to be sent and performs CRC check;
in an alternative embodiment, the verification is performed by CRC-8;
identifying the 8kHz signal by a detection circuit;
analyzing the 8kHz signal subjected to CRC to obtain information to be displayed, and displaying the information to be displayed on a display screen;
and synthesizing voice according to the information to be displayed to obtain the information to be played, and playing the information to be played through a loudspeaker.
Referring to fig. 5, a second embodiment of the present invention is as follows:
an information transmission method of an offshore oil platform very high frequency radio station is different from the first embodiment in that:
in S3, the sending end performs digital information encoding according to the information to be sent to obtain encoded information to be sent specifically as follows:
the sending end carries out digital information coding according to the information to be sent and a preset digital information coding protocol to obtain the information to be sent, which comprises a protocol head, a command word, a command length, a command text, a check code and a protocol tail, wherein the protocol head and the protocol tail are respectively provided with corresponding digital identifications;
referring to table 1, a digital information encoding protocol partition format is shown:
TABLE 1
Please refer to tables 2-6, which illustrate specific contents of the digital information encoding protocol:
TABLE 2
TABLE 3 Table 3
TABLE 4 Table 4
TABLE 5
TABLE 6
The coding information to be sent consists of numbers or letters;
the sending of the coding information to be sent to the receiving end through the very high frequency specifically comprises the following steps:
whether a sine wave with 8kHz exists respectively represents a digital signal 0 or 1, and the coding information to be transmitted is modulated according to the sine wave to obtain an initial wave to be transmitted;
referring to FIG. 5, an 8kHz sine wave representation of 0xFA (binary 11111010);
modulating the initial to-be-transmitted wave and the original voice information by using the same very high frequency carrier wave to obtain a target to-be-transmitted wave;
and transmitting the target wave to be transmitted to a receiving end.
Referring to fig. 3-5, a third embodiment of the present invention is as follows:
the information transmission method of the very high frequency radio station of the offshore oil platform is applied to an actual scene, and the ground very high frequency ground air radio station is assumed to be a transmitting end and the airborne very high frequency ground air radio station is assumed to be a receiving end;
information input: (1) The staff uses the ground very high frequency ground air radio station to open an information recording menu, and the microphone is used for manually reading the information to be recorded to obtain the original voice, wherein the specific information is as follows: "current temperature 28 ℃, humidity 60%, wind direction 168 °, wind speed 11 m/s, air pressure 1100.8 kpa"; the number of people on the platform today is 3, the name: zhang three, lifour, wang five, 2 people on the platform, and the name Saturday, wu Qi; today, the platform supplies: 0801. quantity 2, 0901, quantity 3, today's platform supplies: 0709, number 3, 04D3, number 5";
(2) The ground very high frequency ground-air radio station recognizes the original voice according to the processing of the STT module (voice recognition module) in the ground very high frequency ground-air radio station, converts the original voice into text information and displays the text information;
in an alternative embodiment, the STT module is a mass-produced fly-by-the-fly speech recognition SDK;
(3) The ground very high frequency ground-air radio station receives the modification information sent by the staff and modifies the text information according to the modification information; if the sender staff find that the displayed text information is wrong, the sender can firstly modify and then send the text information;
(4) The ground very high frequency ground air radio station receives a start transmission signal sent by a worker, starts digital coding, and codes according to the information coding mode in the embodiment:
upper platform personnel information: the number of people is 3, name: zhang san, lisi, wang Wu;
corresponding to coded information to be transmitted: FA FA FA FA FA FA F1 and 00 10 03 01 5F 20 4E 09 02 67 4E 56DB 03 73 8B 4E 94 99FB FB FB FB FB FB;
lower platform personnel information: the number of people is 2, and the names are Saturday, wu Qi;
corresponding to coded information to be transmitted: FA FA FA FA FA FA F2 and 00 0B 02 01 54 68 51 6D 02 54 34 4E 03 1C FB FB FB FB FB FB;
upper platform supplies: 0801. quantity 2, 0901, quantity 3;
corresponding to the coded information FA FA FA FA FA FA F3 00 0B 02 01 0801 00 02 02 0901 00 03 47FB FB FB FB FB FB to be transmitted;
lower platform supplies: 0709, number 3, 04D3, number 5;
corresponding information is to be sent coding information: FA FA FA FA FA FA F4, 4 and 00 0B 02 01 0709 00 03 02 04D3 00 05FF FB FB FB FB FB FB;
the current temperature is 28 ℃, the humidity is 60%, the wind direction is 168 ℃, the wind speed is 11 m/s, and the air pressure is 1100.8 hundred Pa;
corresponding to coded information to be transmitted: FA FA FA FA FA FA F5 and 00 0A 01 18 02 58 00 6E 00A8 2B 00 2F FB FB FB FB FB FB;
wave modulation: (5) The ground very high frequency ground-air radio station uses 8kHz waveform to represent the digital information to be transmitted, specifically, referring to FIG. 4, sine wave normally represents bit as 1, otherwise represents bit as 0;
(6) The ground very high frequency ground air radio station modulates the converted waveform through a preset very high frequency carrier wave to obtain a target wave to be transmitted, the frequency of the used very high frequency carrier wave is consistent with the frequency of the very high frequency carrier wave of a modulated common voice signal (3000 Hz-3400 Hz) in daily communication, and the very high frequency carrier wave is not required to be additionally arranged for the transmission of digital signals;
in an alternative embodiment, the modulation is performed using a very high frequency carrier of 118 MHz;
and (3) signal transmission: (7) The ground very high frequency ground-air radio station transmits the target wave to be transmitted through an antenna after power amplification;
and (3) signal receiving: (8) The airborne VHF ground-air radio station receives a target wave to be transmitted and demodulates the target wave to obtain a demodulation signal through a preset VHF carrier;
waveform demodulation and detection splitting: (9) The airborne very high frequency ground-air station shunts the demodulation signal, if the original waveform is a common voice signal (300 Hz to 3400 Hz), the signal is input to an audio output end (a hands-free loudspeaker or an earphone) for playing, and if the original waveform is a digital signal of 8kHz, the signal analysis flow is switched into;
if the modulation is carried out by adopting a very high frequency carrier wave of 118MHz, the step corresponds to the demodulation by adopting the very high frequency carrier wave of 118 MHz;
and (3) information analysis: (10) The airborne VHF ground-air radio station analyzes the demodulation signal according to a preset digital information coding protocol, specifically, the head and the tail of the protocol are grasped, CRC check is calculated, after the CRC check is passed, relevant information such as effective command words, command lengths and command contents are analyzed according to the digital information coding protocol to obtain required information including weather information, platform personnel information about the aircraft, platform supplies about the aircraft and the like;
the terminal display (11) the airborne very high frequency ground-air radio station displays the information (including weather information, information of the platform personnel on and off the aircraft, information of the platform supplies on and off the aircraft, etc.) obtained by analysis on the corresponding position of the display screen menu;
(12) The information obtained by analysis is processed by a TTS module (voice synthesis module) through an airborne very high frequency ground-air radio station, and is broadcasted through a hands-free loudspeaker after artificial voice is synthesized;
in an alternative embodiment, the TTS module is a mass-produced fly-by-speech synthesis SDK.
Referring to fig. 2, a fourth embodiment of the present invention is as follows:
an information transmission system 3 of an offshore oil platform very high frequency radio station comprises a transmitting end 1 and a receiving end 2, wherein the transmitting end 1 comprises a first memory 12, a first processor 11 and a first computer program stored on the first memory 12 and capable of running on the first processor 11, the receiving end 2 comprises a second memory 22, a second processor 21 and a second computer program stored on the second memory 22 and capable of running on the second processor 21, the first processor 11 realizes the steps executed by the transmitting end in the first embodiment or the second embodiment when executing the first computer program, and the second processor 12 realizes the steps executed by the receiving end in the first embodiment or the second embodiment when executing the second computer program.
In summary, the invention provides an information transmission method and system for a very high frequency radio station of an offshore oil platform, wherein a transmitting end receives an original voice sent by a conversation tube of a sender and converts the original voice into character information, fills a preset input menu according to the character information to obtain information to be transmitted, codes the information to be transmitted according to a preset digital information coding protocol to obtain coded information to be transmitted, and the coded information to be transmitted consists of numbers, letters or numbers and letters, so that the amount of information to be transmitted is reduced compared with characters; the sine wave with 8kHz is used for respectively representing 0/1 signal as an original wave, and then modulated by a modulating wave with the same frequency as that of the very high frequency daily voice communication, so that the daily voice transmission and the text transmission can be completed at the same time without adding a very high frequency communication wave band.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.
Claims (6)
1. An information transmission method of an offshore oil platform very high frequency radio station is characterized by comprising the following steps:
s1, a sending end receives original voice and converts the original voice into text information;
s2, the transmitting end fills a preset input menu according to the text information to obtain information to be transmitted;
s3, the sending end carries out digital information coding according to the information to be sent to obtain coded information to be sent, and the coded information to be sent is sent to a receiving end through very high frequency;
s4, the receiving end analyzes the coding information to be sent to obtain information to be displayed and information to be played, displays the information to be displayed and plays the information to be played;
in the step S3, the sending the coding information to be sent to the receiving end through the vhf specifically includes:
whether a sine wave with 8kHz exists respectively represents a digital signal 0 or 1, and the coding information to be transmitted is modulated according to the sine wave to obtain an initial wave to be transmitted;
modulating the initial to-be-transmitted wave and the original voice information by using the same very high frequency carrier wave to obtain a target to-be-transmitted wave;
transmitting the target wave to be transmitted to a receiving end;
the S1 specifically comprises the following steps:
s1, a sending end receives original voice, the original voice is converted into text information, and the original voice comprises weather information, platform personnel information and platform material information;
the step S2 is specifically as follows:
and the transmitting end fills a preset meteorological information input menu, a platform personnel on-off plane information input menu and a platform material on-off plane input menu according to the text information to obtain information to be transmitted.
2. The information transmission method of the vhf station of offshore oil platform according to claim 1, wherein the step of performing digital information encoding by the transmitting end according to the information to be transmitted in S3 specifically includes:
the sending end carries out digital information coding according to the information to be sent and a preset digital information coding protocol to obtain the information to be sent, which comprises a protocol head, a command word, a command length, a command text, a check code and a protocol tail, wherein the protocol head and the protocol tail are respectively provided with corresponding digital identifications;
the coded information to be transmitted consists of numbers or letters.
3. The information transmission method of the vhf station of the offshore oil platform according to claim 1, wherein S4 specifically is:
the receiving end demodulates the target wave to be sent and performs CRC check;
identifying the 8kHz signal by a detection circuit;
analyzing the 8kHz signal subjected to CRC to obtain information to be displayed, and displaying the information to be displayed on a display screen;
and synthesizing voice according to the information to be displayed to obtain the information to be played, and playing the information to be played through a loudspeaker.
4. The information transmission system of the offshore oil platform very high frequency radio station comprises a transmitting end and a receiving end, wherein the transmitting end comprises a first memory, a first processor and a first computer program which is stored in the first memory and can run on the first processor, and the receiving end comprises a second memory, a second processor and a second computer program which is stored in the second memory and can run on the second processor, and the information transmission system is characterized in that:
the first processor, when executing the first computer program, performs the steps of:
s1, a sending end receives original voice and converts the original voice into text information;
s2, the transmitting end fills a preset input menu according to the text information to obtain information to be transmitted;
s3, the sending end carries out digital information coding according to the information to be sent to obtain coded information to be sent, and the coded information to be sent is sent to a receiving end through very high frequency;
the second processor, when executing the second computer program, performs the steps of:
s4, the receiving end analyzes the coding information to be sent to obtain information to be displayed and information to be played, displays the information to be displayed and plays the information to be played;
the first processor executes the first computer program to implement that in S3, the sending the coding information to be sent and the original voice to the receiving end through the vhf is specifically:
whether a sine wave with 8kHz exists respectively represents a digital signal 0 or 1, and the coding information to be transmitted is modulated according to the sine wave to obtain an initial wave to be transmitted;
modulating the initial to-be-transmitted wave and the original voice information by using the same very high frequency carrier wave to obtain a target to-be-transmitted wave;
transmitting the target wave to be transmitted to a receiving end;
the S1 specifically comprises the following steps:
s1, receiving original voice, and converting the original voice into text information, wherein the original voice comprises weather information, platform personnel information and platform material information;
the step S2 is specifically as follows:
and filling a preset meteorological information input menu, a platform personnel on-off plane information input menu and a platform material on-off plane input menu according to the text information to obtain information to be transmitted.
5. The information transmission system of an offshore oil platform vhf station according to claim 4, wherein the first processor executes the first computer program to perform digital information encoding according to the information to be transmitted in S3 to obtain encoded information to be transmitted specifically includes:
carrying out digital information coding according to the information to be transmitted and a preset digital information coding protocol to obtain the information to be transmitted, wherein the information to be transmitted comprises a protocol head, a command word, a command length, a command text, a check code and a protocol tail, and the protocol head and the protocol tail are respectively provided with corresponding digital identifications;
the coded information to be transmitted consists of numbers or letters.
6. The information transmission system of an offshore oil platform vhf station according to claim 4, wherein S4 is specifically:
the receiving end demodulates the target wave to be sent and performs CRC check;
identifying the 8kHz signal by a detection circuit;
analyzing the 8kHz signal subjected to CRC to obtain information to be displayed, and displaying the information to be displayed on a display screen;
and synthesizing voice according to the information to be displayed to obtain the information to be played, and playing the information to be played through a loudspeaker.
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