CN109444806B - Helicopter navigation frequency multiplexing system and method for offshore oil drilling platform - Google Patents
Helicopter navigation frequency multiplexing system and method for offshore oil drilling platform Download PDFInfo
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- CN109444806B CN109444806B CN201811199628.3A CN201811199628A CN109444806B CN 109444806 B CN109444806 B CN 109444806B CN 201811199628 A CN201811199628 A CN 201811199628A CN 109444806 B CN109444806 B CN 109444806B
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/04—Details
Abstract
The invention provides a helicopter navigation frequency multiplexing system and a helicopter navigation frequency multiplexing method for an offshore oil drilling platform, wherein an NDB management monitoring platform receives available navigation frequency information; the client sends the flight plan containing the NDB equipment information, the flight time and the airplane to the NDB management and monitoring platform; the NDB management monitoring platform schedules a navigation frequency time-sharing multiplexing use plan according to the received available navigation frequency information and the flight plan; the NDB management monitoring platform transmits the navigation frequency corresponding to the flight time to the NDB monitoring unit and the client according to the navigation frequency time-sharing multiplexing use plan; the NDB monitoring unit controls the on/off of the NDB equipment according to the received navigation frequency corresponding to the flight time and sets the working frequency according to the navigation frequency; and the client transmits the navigation frequency corresponding to the flight time to the aircraft according to the received navigation frequency time-sharing multiplexing use plan. The navigation frequency can be multiplexed in a planned time-sharing way, and the utilization rate of navigation frequency resources is improved.
Description
Technical Field
The invention relates to the technical field of civil aviation radio navigation and air traffic management, in particular to a helicopter navigation frequency multiplexing system and method for an offshore oil drilling platform.
Background
Land-based aviation radio navigation devices mainly include non-directional beacons (NDBs), very high frequency omni-directional beacons (VORs), earth-beauty navigation Systems (DMEs), blind descent systems (ILS), pointing beacons (MKs), and the like. The invention relates to an nondirectional beacon (NDB) for an offshore oil drilling platform helicopter.
The Non-directional beacon (Non-Directional Beacon, hereinafter referred to as NDB) is an amplitude modulation transmitter, which is installed on various army, civil airports, ships with helicopter take-off and landing requirements and offshore oil platforms, and is used as an aircraft navigation and homing by cooperating with a radio compass on the aircraft. NDB is widely used throughout the world due to its low price, ease of erection, etc. Helicopters are important vehicles for sea-land transportation of offshore oil drilling platforms. The offshore oil drilling platform is like a black sea, and NDB is a main means for searching targets by the helicopter of the offshore oil drilling platform.
The working frequency band of the NDB navigation platform is standardized from the frequency of 190kHz to 700kHz in the standard MH/T4006.4-1998 of civil aviation industry of the people's republic of China, the frequency interval is 1kHz, the total of 511 navigation frequencies are adopted, and the navigation frequencies of the civil NDB navigation platform in China are uniformly examined, approved, distributed and managed by air force and civil aviation office frequency management. In recent years, military airports and civil airports are frequent in movement, naval vessels, sea polices, fishery, sea supervision and other vessels with large tonnage and helicopter lifting demands are increasing, NDB navigation demands are increasing, and resources of NDB navigation frequency are becoming deficient.
Currently, non-directional beacons (NDBs) constitute NDB navigation systems when in use by cooperating with a radio compass onboard an aircraft. When the system works, the NDB equipment and the airborne radio compass adjust the working frequency to the same navigation frequency, the navigation frequency is distributed by the civil aviation office frequency management, when the system is used, the NDB equipment transmits radio navigation signals to the air, the airborne radio compass receives the signals transmitted by the NDB equipment, after processing and conversion, the airborne radio compass indicator indicates the relative azimuth angle of the navigation platform, namely the relative azimuth angle of the longitudinal axis of the airplane and the navigation platform, and the airplane adjusts the heading according to the relative azimuth angle and can fly along the pointer of the airborne radio compass to reach the position right above the navigation platform.
In order to ensure flight safety and avoid collision of the NDB navigation frequencies, each device of the conventional NDB navigation station needs to occupy a fixed navigation frequency. In recent years, military and civil airports on land are frequent in movement, naval vessels, sea polices, fishery and overseas vessels and other large-tonnage vessels with helicopter lifting requirements are increasingly increased, and NDB navigation frequency resources are increasingly deficient. Hundreds of existing offshore oil drilling platforms are increased along with the increasing of energy requirements of economic development, the number of the offshore oil drilling platforms is increased continuously, and the NDB navigation frequency distributed by civil aviation office frequency management can not meet the increasing use requirements of the offshore oil drilling platforms. Many newly-built offshore oil drilling platforms still can't take off and land because NDB navigation frequency can not be applied to even put into production for many years, and the personnel and materials to and fro can only be transported through ships, so that the production and operation efficiency is greatly reduced, the operation cost is increased, and meanwhile, great inconvenience is brought to production management staff.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the system and the method for multiplexing the navigation frequency of the helicopter of the offshore oil drilling platform are provided, so that the NDB navigation frequency resource of the helicopter of the offshore oil drilling platform is saved, and more offshore oil drilling platforms have the NDB navigation frequency available.
In order to solve the technical problems, the invention adopts the following technical scheme:
an offshore oil drilling platform helicopter navigation frequency multiplexing system comprises an NDB management monitoring platform, an NDB monitoring unit and a client, wherein,
the NDB management monitoring platform is used for receiving available navigation frequency information; the navigation frequency time-sharing multiplexing use plan comprises NDB equipment information, flight time, an airplane and navigation frequency is arranged according to the received available navigation frequency information and the flight plan; the navigation frequency time-sharing multiplexing method is used for sending the navigation frequency corresponding to the flight time to an NDB monitoring unit and a client to be started according to the navigation frequency time-sharing multiplexing use plan;
the NDB monitoring unit is used for controlling the on/off of the NDB equipment connected with the NDB monitoring unit according to the received navigation frequency corresponding to the flight time and setting the working frequency according to the navigation frequency;
The client is used for sending the flight plan containing the NDB equipment information, the flight time and the airplane to the NDB management and monitoring platform; and the navigation frequency time-sharing multiplexing module is used for sending the navigation frequency corresponding to the flight time to the aircraft with the flight plan corresponding to the flight time according to the received navigation frequency time-sharing multiplexing use plan.
The invention has the beneficial effects that: the flight plan and the available navigation frequency information sent by the client are arranged through the NDB management monitoring platform, the navigation frequency time-sharing multiplexing use plan is made, the navigation frequency time-sharing multiplexing use plan is sent to the NDB monitoring unit and the client, the NDB monitoring unit can control the running state of the NDB equipment, the client can send the navigation frequency time-sharing multiplexing use plan to the airplane, so that a compass of the airplane can acquire the same working frequency as the NDB equipment, the flight plan and the available navigation frequency are considered in the arrangement of the navigation frequency time-sharing multiplexing use plan, and the use of the navigation frequency is arranged according to the actual flight plan.
A method for multiplexing navigation frequencies of helicopters of offshore oil drilling platforms, comprising the following steps:
the NDB management monitoring platform receives available navigation frequency information;
the client sends the flight plan containing the NDB equipment information, the flight time and the airplane to the NDB management and monitoring platform;
the NDB management monitoring platform arranges a navigation frequency time-sharing multiplexing use plan containing NDB equipment information, flight time, an airplane and navigation frequency according to the received available navigation frequency information and the flight plan;
the NDB management monitoring platform transmits the navigation frequency corresponding to the flight time to an NDB monitoring unit and a client to be started according to the navigation frequency time-sharing multiplexing use plan;
the NDB monitoring unit to be started controls the NDB equipment connected with the NDB monitoring unit to be started and closed according to the received navigation frequency corresponding to the flight time, and sets the working frequency according to the navigation frequency;
and the client transmits the navigation frequency corresponding to the flight time to the aircraft with the flight plan corresponding to the flight time according to the received navigation frequency time-sharing multiplexing use plan.
The invention has the beneficial effects that: the client is placed at an airport, a network can be accessed through WIFI, 4G and the like to acquire a flight plan, the navigation frequency time division multiplexing use plan can be issued to the airplane, and the airplane controls the compass to be turned on and off and the working frequency to be switched according to the received navigation frequency time division multiplexing use plan. The NDB monitoring unit is positioned on the offshore oil drilling platform, can control the opening and closing of NDB equipment connected with the NDB monitoring unit and the setting of working frequency, and the NDB management monitoring platform composes a navigation frequency time-division multiplexing use plan according to a flight plan, and then issues the navigation frequency time-division multiplexing use plan to the NDB monitoring unit and a client to ensure that the NDB equipment and an airplane compass use the same working frequency. According to the flight plan, the working frequency of the NDB equipment is adjusted, flight safety is guaranteed, the NDB navigation frequency conflict of different offshore oil drilling platforms is avoided, the resource utilization rate of the NDB navigation frequency is improved, the NDB navigation frequency resource of the helicopter of the offshore oil drilling platform is greatly saved, and more offshore oil drilling platforms have the NDB navigation frequency available.
Drawings
FIG. 1 is a system block diagram of an offshore oil drilling platform helicopter navigation frequency reuse system of the present invention;
FIG. 2 is a flowchart of a method for automatically arranging navigation frequencies by an NDB management and monitoring platform in a helicopter navigation frequency multiplexing method for an offshore oil drilling platform according to a seventh embodiment of the invention;
FIG. 3 is a flowchart of a method for automatically arranging navigation frequencies in an NDB management and monitoring platform in a helicopter navigation frequency multiplexing method for an offshore oil drilling platform according to an eighth embodiment of the invention;
FIG. 4 is a flowchart of a method for acquiring navigation frequency when an NDB monitoring unit receives a radio frequency command in a helicopter navigation frequency multiplexing method for an offshore oil drilling platform according to a ninth embodiment of the invention;
fig. 5 is a flowchart of a method for logging off the navigation frequency when the NDB monitoring unit receives the radio frequency command in the helicopter navigation frequency multiplexing method for the offshore oil drilling platform according to the ninth embodiment of the invention.
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, a first embodiment of the present invention is as follows:
an offshore oil drilling platform helicopter navigation frequency multiplexing system comprises an NDB management monitoring platform, an NDB monitoring unit and a client, wherein,
The NDB management monitoring platform is used for receiving available navigation frequency information; the navigation frequency time-sharing multiplexing use plan comprises NDB equipment information, flight time, an airplane and navigation frequency is arranged according to the received available navigation frequency information and the flight plan; the navigation frequency time-sharing multiplexing method is used for sending the navigation frequency corresponding to the flight time to an NDB monitoring unit and a client to be started according to the navigation frequency time-sharing multiplexing use plan;
the NDB monitoring unit is used for controlling the on/off of the NDB equipment connected with the NDB monitoring unit according to the received navigation frequency corresponding to the flight time and setting the working frequency according to the navigation frequency;
the client is used for sending the flight plan containing the NDB equipment information, the flight time and the airplane to the NDB management and monitoring platform; and the navigation frequency time-sharing multiplexing module is used for sending the navigation frequency corresponding to the flight time to the aircraft with the flight plan corresponding to the flight time according to the received navigation frequency time-sharing multiplexing use plan.
Specifically, the client is a mobile phone end, a tablet end or a computer end, the client is placed at an airport, a compass is loaded on an airplane, one client can communicate with a plurality of airplanes, an NDB monitoring unit and NDB equipment are both located on offshore oil drilling platforms, each offshore oil drilling platform is distributed with the NDB monitoring unit and the NDB equipment connected with the NDB monitoring unit, the NDB management monitoring platform communicates with the client through an Ethernet, the NDB management monitoring platform communicates with the NDB monitoring unit through a submarine optical cable or UHF microwave communication equipment, the NDB management monitoring platform is located at the ground end, and one NDB management monitoring platform can communicate with a plurality of clients and also can communicate with a plurality of NDB monitoring units.
When the device is used, the NDB management monitoring platform acquires the flight plan of the aircraft from the client, uniformly arranges the information of the NDB equipment, the flight time, the aircraft and the available navigation frequency, and automatically transmits the navigation frequency to the NDB monitoring unit and the client.
The second embodiment provided by the application is as follows:
on the basis of the first embodiment, specifically, the NDB management and monitoring platform includes an NDB management center, a communication server, an application server and a database server, wherein,
the NDB management center is used for receiving available navigation frequency information; the flight plan comprises NDB equipment information, flight time and an airplane, which are sent by a client; the navigation system is used for sending the received available navigation frequency information and the flight plan to a communication server;
The communication server is used for sending the received available navigation frequency information and the received flight plan to the application server; the device comprises an NDB monitoring unit, a client and an NDB control unit, wherein the NDB monitoring unit is used for sending received corresponding NDB equipment, flight time and navigation frequency of an airplane to the client and the NDB monitoring unit corresponding to the NDB equipment;
the application server is used for arranging a navigation frequency time-division multiplexing use plan containing NDB equipment information, flight time, an airplane and navigation frequency according to the received available navigation frequency information and the flight plan, and writing the navigation frequency time-division multiplexing use plan into the database server; the navigation system comprises a database server, a communication server, a navigation server and a navigation server, wherein the database server is used for reading navigation frequencies of corresponding NDB equipment, flight time and an airplane according to a navigation frequency time-sharing multiplexing use plan and sending the navigation frequencies of the corresponding NDB equipment, flight time and the airplane to the communication server;
the database server is used for storing the navigation frequency time-sharing multiplexing use plan.
In the NDB management monitoring platform, the NDB management center is used as a workstation and is a window for interacting with people, available navigation frequency information is conveniently manually input through the NDB management center, a flight plan sent by a client is checked, an application server is used for processing data, a database server is used for storing the data, a communication server is used as a hub for data transmission among the NDB management center, the client and the application server, the flight plan is transmitted into the NDB management monitoring platform from the client, the available navigation frequency is transmitted into the NDB management monitoring platform from the NDB management center, the data is organized and stored through the NDB management monitoring platform, a navigation frequency time-sharing multiplexing use plan is obtained and is used for distributing the navigation frequencies used by the NDB equipment and an airplane compass, and the flight plan of the airplane is fully considered.
The third embodiment provided by the invention is as follows:
on the basis of the second embodiment, the system further includes:
the application server is used for writing the remaining available navigation frequency information after the navigation frequency time-division multiplexing use plan is arranged into the database server; the method comprises the steps of receiving a navigation frequency application request message, inquiring and distributing a navigation frequency from a database server according to a navigation frequency time-sharing multiplexing use plan and the rest available navigation frequency information, writing the distributed navigation frequency into the database server, generating a navigation frequency application approval message, and sending the message to a communication server; the method comprises the steps of receiving a navigation frequency cancellation request message sent by a communication server, writing the navigation frequency to be cancelled into a database server, generating a navigation frequency cancellation approval message, and sending the navigation frequency cancellation approval message to the communication server;
the NDB monitoring unit is used for receiving the radio frequency starting command and sending a navigation frequency application request message to the communication server; the device is used for receiving a navigation frequency application approval message sent by the communication server and setting the working frequency of the NDB equipment connected with the communication server according to the navigation frequency application approval message; the communication server is used for receiving the radio frequency command and sending a navigation frequency cancellation request message to the communication server; the navigation frequency cancellation approval message is used for receiving the navigation frequency cancellation approval message sent by the communication server and canceling the navigation frequency used by the NDB equipment connected with the communication server according to the navigation frequency cancellation approval message;
The communication server is used for sending the received navigation frequency application request message to an application server; the navigation frequency application approval message is used for sending the received navigation frequency application approval message to an NDB monitoring unit and a client; the navigation frequency cancellation request message is used for sending the received navigation frequency cancellation request message sent by the NDB monitoring unit to an application server; and the navigation frequency cancellation approval message is used for sending the received navigation frequency cancellation approval message sent by the application server to an NDB monitoring unit and a client.
In the actual use process, the NDB monitoring unit also has the function of receiving an on-radio frequency command and an off-radio frequency command, and specifically, an on-radio frequency button and an off-radio frequency button can be arranged at the NDB monitoring unit; when the NDB equipment exceeds the navigation frequency time-sharing multiplexing use plan, the system can call one navigation frequency in the rest available navigation frequency information from the database server for distribution and use by manually operating the radio frequency starting button of the NDB monitoring unit, or when the navigation frequency information is not timely transmitted to the NDB monitoring unit or manual operation is needed, a worker can manually press the radio frequency starting button, and the system can call the pre-allocated navigation frequency from the navigation frequency time-sharing multiplexing use plan of the database server for distribution and use; when the use of the NDB equipment is finished, a worker can manually press a radio frequency closing button, and the system can cancel the navigation frequency used by the NDB equipment, so that the navigation frequency can be timely distributed to other NDB equipment for use; the navigation frequency utilization rate can be further improved, and the system is provided with a mechanism for manually triggering and distributing the navigation frequency, so that the system can operate more flexibly, stably and reliably.
The fourth embodiment provided by the invention is as follows:
on the basis of the third embodiment, further, the system further includes:
the NDB monitoring unit is used for sending the operation condition information of the NDB monitoring unit and the operation condition information of the NDB equipment connected with the NDB monitoring unit to the communication server;
the communication server is used for sending the received operation condition information of the NDB monitoring unit and the operation condition information of the NDB equipment to the NDB management center;
the NDB management center is used for displaying the received operation condition information of the NDB monitoring unit and the operation condition information of the NDB equipment;
the operation condition information of the NDB monitoring unit comprises a switch state, a device number and working time, and the operation condition information of the NDB device comprises the switch state, the device number, the working frequency and the working time.
The operation conditions of the NDB monitoring unit and the NDB equipment are displayed in the NDB management center, so that a worker can monitor the use condition of the navigation frequency through the NDB management center, and can find out fault equipment in time to process the fault equipment.
The fifth embodiment provided by the invention is as follows:
on the basis of the fourth embodiment, further, the system further includes:
The client is used for sending the aircraft running condition information to the communication server;
the communication server is used for sending the received aircraft running condition information to an NDB management center;
the NDB management center is used for displaying the received aircraft running condition information;
the aircraft running state information comprises a switch state, a device number, a compass working frequency and a working time.
The NDB management center can monitor the running condition and the use condition of the navigation frequency of each communication aircraft, so that staff can monitor each device of the system through the NDB management center conveniently and find faults in time.
The sixth embodiment provided by the invention is as follows:
on the basis of the fifth embodiment, a helicopter navigation frequency multiplexing system for an offshore oil drilling platform comprises an NDB management monitoring platform, an NDB monitoring unit and a client, wherein the NDB management monitoring platform comprises an NDB management center, a communication server, an application server and a database server, and the functions of each module are as follows:
NDB management center: the system is responsible for receiving the update from the application server and displaying the use condition of the navigation frequency, the interface monitored by each device and the fault information to the staff in real time; receiving an instruction issued by a worker on an NDB management center interface and sending the instruction to an application server; an administrator logs in an NDB management center webpage interface through a browser to realize coordinated management of single or multiple devices, can clearly know the frequency allocation service condition and the radio frequency opening condition of each NDB device, can grasp the working state of the device in real time through monitoring parameters displayed by the interface, and can observe the frequency allocation service condition and the working state of each aircraft compass;
And the communication server: the terminal NDB equipment and the client are connected to the Ethernet, and data interaction is carried out through a port of a communication server connected to the Ethernet so as to assist an NDB management monitoring platform to realize the function of real-time monitoring on the NDB equipment;
the application server: reading data which are newly reported by an NDB equipment terminal or a client terminal from a cache of a database server, processing the data, generating an interface or a report, sending the interface or the report to an NDB management center, displaying the interface or the report to a worker, and converting the instruction into a communication instruction according to a communication protocol according to an instruction sent on the interface of the NDB management center and sending the communication instruction to the NDB equipment terminal or the client terminal through a communication server;
database server: and the data uploaded by the terminal NDB equipment can be stored through the database server, and the issued control instructions and the like are stored in the database server.
In addition, NDB monitoring unit: receiving a frequency allocation control instruction issued by an NDB management center, controlling the on/off and replacement navigation frequency of the NDB equipment connected with the frequency allocation control instruction, reporting the running state of the NDB equipment to a communication server, and storing the running state in a database server;
NDB device: an NDB navigation system is formed by matching with a radio compass on an airplane, so that the navigation function is realized, when the system works, the NDB equipment and the airborne radio compass adjust the working frequency to the same frequency, the NDB equipment transmits radio navigation signals to the air, and the airborne radio compass receives the signals transmitted by the NDB equipment to perform navigation; the device consists of a power supply, a signal unit, a power amplification power supply, a coupler and an antenna, and is responsible for generating and amplifying signals, matching the impedance of the antenna and transmitting navigation radio frequency signals;
Client side: the system is positioned at an airport, can acquire a flight plan related to an airplane, and is communicated with a communication server;
an aircraft: the device is actually an airplane, is arranged on a compass, and forms an NDB navigation system with NDB equipment, so that the navigation function of the airplane is realized.
Further, the functions of the whole system are divided into five functional modules, including: device management, navigation frequency management, fault management, monitoring management, user and rights management. The specific functions are described as follows:
1. device management function:
the equipment information management mainly completes the functions of inputting, editing, storing, modifying, inquiring and the like of equipment numbers of NDB equipment, equipment names, longitudes and latitudes of oil platforms to which the equipment belongs, equipment IP addresses of areas to which the equipment belongs, numbers of the oil platforms to which the equipment belongs; the equipment number is a factory unique number, a user can only check and can not edit the equipment number, and other information users can input the equipment number according to requirements, such as the name of the equipment can be customized and changed; after the information of a plurality of devices is stored, a user can check one or a plurality of devices through inquiry conditions, such as a common affiliated area or an affiliated petroleum platform;
2. navigation frequency management:
the user can view the currently enabled NDB device's assigned navigation frequencies at the NDB management center interface and can view the navigation frequencies already assigned and unassigned within a system. When a new device is started, the system can pre-allocate an unassigned navigation frequency, and issue an instruction to the NDB monitoring unit, and automatically set the working frequency of the terminal NDB device through the NDB monitoring unit;
3. Fault management function:
the fault management is mainly used for managing fault information of each device, wherein the fault information comprises a device number, a number of an oil platform to which the device belongs, a fault extension, fault time, a fault module and the like, and when the device fails, the fault information is actively reported to a communication server and stored in a database server; the staff can set inquiry conditions such as the affiliated region, the time start and stop, the affiliated petroleum platform and the like through the interface, and check related fault records; historical data of the last three years is automatically saved in a database server.
4. Monitoring management function:
the user selects corresponding NDB equipment in the tree structure of the NDB equipment information list displayed by the NDB management center, and after the selection, the working information of the NDB equipment can be checked in a window for real-time monitoring, wherein the working information comprises the information of the NDB equipment number, the working frequency, the identification code, the code number, the working extension, the whole machine current, the whole machine voltage, the antenna current, the modulation amplitude and the like;
5. user and rights management functions:
an administrator account is initially set in the NDB management center, a worker logs in the NDB management center through the administrator account, other administrator accounts and common user accounts can be created, the administrator has high-level authority, the related operation of all functions can be realized, the common user has common authority, only related browsing information can be checked, and system parameters and equipment parameters cannot be changed; after the account is successfully created, a worker can allocate an account knowledge range by himself, and can enter an NDB management center interface after entering an account, a password and a verification code through a webpage login interface.
Referring to fig. 2, a seventh embodiment of the present invention is as follows:
a method for multiplexing navigation frequencies of helicopters of offshore oil drilling platforms, comprising the following steps:
the NDB management monitoring platform receives available navigation frequency information;
the client sends the flight plan containing the NDB equipment information, the flight time and the airplane to the NDB management and monitoring platform;
the NDB management monitoring platform arranges a navigation frequency time-sharing multiplexing use plan containing NDB equipment information, flight time, an airplane and navigation frequency according to the received available navigation frequency information and the flight plan;
the NDB management monitoring platform transmits the navigation frequency corresponding to the flight time to an NDB monitoring unit and a client to be started according to the navigation frequency time-sharing multiplexing use plan;
the NDB monitoring unit to be started controls the NDB equipment connected with the NDB monitoring unit to be started and closed according to the received navigation frequency corresponding to the flight time, and sets the working frequency according to the navigation frequency;
and the client transmits the navigation frequency corresponding to the flight time to the aircraft with the flight plan corresponding to the flight time according to the received navigation frequency time-sharing multiplexing use plan.
Specifically, available navigation frequency information is obtained from a civil aviation office frequency management department and is input into an NDB management monitoring platform, a client side at an airport obtains a flight plan and then transmits the flight plan to the NDB management monitoring platform, the flight plan and available navigation frequencies of the aircraft are uniformly arranged through the NDB management monitoring platform, a navigation frequency time-sharing multiplexing use plan is formulated, then the navigation frequency time-sharing multiplexing use plan is automatically issued to an NDB monitoring unit and the client side, the NDB monitoring unit controls the operation of NDB equipment connected with the NDB monitoring unit, and an aircraft with the flight plan corresponding to the flight time sets the working frequency of a compass according to the received navigation frequency, so that the NDB equipment and the airborne compass are guaranteed to have the same working frequency, the collision of the NDB navigation frequencies is avoided, the flight safety is guaranteed, the navigation frequencies are fully utilized, the resource utilization rate of the NDB navigation frequencies is improved, more offshore oil drilling platforms have the NDB navigation frequencies available, and in addition, the navigation frequency is automatically issued, and the method is efficient and convenient to operate.
Referring to fig. 3, an eighth embodiment of the present invention is as follows:
based on the seventh embodiment, specifically, in the NDB management monitoring platform, the specific method is as follows:
the NDB management center receives available navigation frequency information;
the NDB management center receives flight plans, which are sent by the client and contain NDB equipment information, flight time and aircrafts;
the NDB management center sends the received available navigation frequency information and the flight plan to a communication server;
the communication server sends the received available navigation frequency information and the flight plan to the application server;
the application server programs a navigation frequency time-division multiplexing use plan containing NDB equipment information, flight time, an airplane and navigation frequency according to the received available navigation frequency information and the flight plan, and writes the navigation frequency time-division multiplexing use plan into the database server;
the application server reads the navigation frequency of the corresponding NDB equipment, flight time and airplane from the database server according to the navigation frequency time-sharing multiplexing use plan, and sends the navigation frequency of the corresponding NDB equipment, flight time and airplane to the communication server;
and the communication server sends the received corresponding NDB equipment, flight time and navigation frequency of the airplane to the client and the NDB monitoring unit corresponding to the NDB equipment.
Specifically, the NDB management center is used as a workstation, receives the recorded available navigation frequency information, is a window interacted with a person, is convenient for a worker to operate and check, the communication server performs data interaction with the NDB management center, the client and the application server, the database server is used for storing data, and the NDB monitoring unit controls the on/off of the NDB equipment connected with the NDB monitoring unit according to the received navigation frequency of the corresponding NDB equipment, the flight time and the aircraft and sets the working frequency according to the navigation frequency; the client sets the working frequency of an aircraft compass according to the received corresponding NDB equipment, flight time and navigation frequency of the aircraft; the device is convenient for operators to operate and check, ensures that the compass on the aircraft and the NDB equipment have the same working frequency, improves the utilization rate of navigation frequency resources, saves the NDB navigation frequency resources, avoids the conflict of the NDB navigation frequency, and ensures the flight safety.
Referring to fig. 4 and 5, a ninth embodiment of the present invention is as follows:
on the basis of the eighth embodiment, further, the method further includes:
the application server also writes the remaining available navigation frequency information after the navigation frequency time-division multiplexing use plan is arranged into the database server;
The NDB monitoring unit receives the radio frequency starting command and sends a navigation frequency application request message to the communication server;
the communication server sends the received navigation frequency application request message to an application server;
the application server receives the navigation frequency application request message, queries and distributes a navigation frequency from a database server according to a navigation frequency time-sharing multiplexing use plan and the rest available navigation frequency information, writes the distributed navigation frequency into the database server, generates a navigation frequency application approval message, and sends the navigation frequency application approval message to the communication server;
the communication server sends the received navigation frequency application approval message to an NDB monitoring unit and a client;
the NDB monitoring unit receives a navigation frequency application approval message sent by the communication server, and sets the working frequency of NDB equipment connected with the NDB monitoring unit according to the navigation frequency application approval message;
the NDB monitoring unit receives radio frequency-related commands and sends a navigation frequency cancellation request message to the communication server;
the communication server sends the received navigation frequency cancellation request message sent by the NDB monitoring unit to an application server;
The application server receives the navigation frequency cancellation request message sent by the communication server, writes the navigation frequency to be cancelled into the database server, generates a navigation frequency cancellation approval message, and sends the navigation frequency cancellation approval message to the communication server;
the communication server sends the received navigation frequency cancellation approval message sent by the application server to an NDB monitoring unit and a client;
and the NDB monitoring unit receives the navigation frequency cancellation approval message sent by the communication server, and cancels the navigation frequency used by the NDB equipment connected with the NDB monitoring unit according to the navigation frequency cancellation approval message.
When the NDB monitoring unit receives an on-radio frequency command input by a worker, the function of temporarily applying for the navigation frequency can be triggered, or when the NDB monitoring unit receives an off-radio frequency command input by the worker, the function of timely canceling the navigation frequency can be triggered, so that the navigation frequency is issued in a temporary emergency state or under the operation of the worker, the navigation frequency can be timely canceled under the operation of the worker, the functions of manually applying for and canceling the navigation frequency are realized, and the system is more flexible, stable and reliable to operate.
The tenth embodiment provided by the invention is as follows:
On the basis of the ninth embodiment, further, the method further includes:
the NDB monitoring unit sends the running state information of the NDB monitoring unit and the running state information of the NDB equipment connected with the NDB monitoring unit to the communication server;
the communication server sends the received operation condition information of the NDB monitoring unit and the operation condition information of the NDB equipment to an NDB management center;
the NDB management center displays the received operation condition information of the NDB monitoring unit and the operation condition information of the NDB equipment;
the operation condition information of the NDB monitoring unit comprises a switch state, a device number and working time, and the operation condition information of the NDB device comprises the switch state, the device number, the working frequency and the working time.
The NDB management center displays the operation conditions of the NDB monitoring unit and the NDB equipment, so that a worker can monitor the operation conditions of the equipment and the use conditions of navigation frequency, and can timely find out fault equipment to process.
The eleventh embodiment provided by the invention is:
on the basis of the tenth embodiment, further, the method further includes:
the client sends the aircraft running state information to the communication server;
The communication server sends the received aircraft running condition information to an NDB management center;
the NDB management center displays the received aircraft running state information;
the aircraft running state information comprises a switch state, a device number, a compass working frequency and a working time.
The NDB management center also displays the running conditions of each aircraft, so that workers can monitor the running conditions of the aircraft and the use conditions of navigation frequency conveniently, and timely find faults to process.
The twelve embodiments provided by the invention are as follows:
based on the eleventh embodiment, a helicopter navigation frequency multiplexing system and method for an offshore oil drilling platform, specifically exemplified as:
the effective range of the current navigation frequency setting is 190 kHz-700 kHz, the unit is 0.1kHz, the step is 10, the available navigation frequencies are 190kHz, 191kHz and 192kHz, and in the flight plan sent by the client, the specific flight plan arrangement is shown in the table 1:
TABLE 1 flight plan
| Sequence number | NDB device information | Time of flight | Aircraft |
| 1 | NDB device number one | 8 to 9 points | First aircraft |
| 2 | NDB device No. two | 9 to 10 points | No. two aircraft |
| 3 | NDB device No. three | 8 to 9 points | Aircraft No. three |
| 4 | NDB device No. four | 9 to 10 points | No. four aircraft |
The scheduled navigation frequency time division multiplexed usage plan is shown in table 2 based on available navigation frequencies and flight plans:
table 2 navigation frequency time division multiplexing usage plan
According to the conventional navigation frequency allocation method, according to the flight plan of table 1, four NDB devices are required to be allocated with one navigation frequency respectively, and then four navigation frequencies are required to be used in the period of 8-10 points.
According to the navigation frequency allocation method of the application, according to the navigation frequency time-sharing multiplexing use plan of table 2, only two navigation frequencies are allocated to four NDB devices in the time period of 8-10 points, and the remaining available navigation frequencies of 192kHz are available.
When the fifth NDB device is started temporarily in the time period of 8-10 points, a worker can press a radio frequency button, and the system retrieves the remaining available navigation frequency of 192kHz from the database server and issues the navigation frequency to be distributed to the fifth NDB device; in the using process, if the use of the No. five NDB equipment is finished, a worker presses a radio frequency off button, the system logs off the 192kHz navigation frequency, and writes the 192kHz navigation frequency as the rest available navigation frequency into a database server.
In summary, the system and the method for multiplexing the navigation frequency of the helicopter of the offshore oil drilling platform provided by the invention are characterized in that an NDB management monitoring platform is built between an airport client and an NDB monitoring unit of the offshore oil drilling platform, the flight plan of an airplane, the service condition of NDB equipment and the available navigation frequency are uniformly arranged, the available navigation frequency information is conveniently input through an NDB management center, the operation is convenient, the operation condition of each equipment in the system can be conveniently observed, the navigation frequency is automatically uniformly distributed and logged out, or the distribution and the logging out are manually applied, the applied NDB navigation frequencies with limited quantity are subjected to time-sharing multiplexing, so that not only can the collision of the NDB navigation frequencies of different offshore oil drilling platforms be avoided, but also the flight safety can be ensured, the resource utilization rate of the NDB navigation frequency of the helicopter of the offshore oil drilling platform can be improved, and more offshore oil drilling platforms have the NDB navigation frequency resource available.
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 (8)
1. The helicopter navigation frequency multiplexing system of the offshore oil drilling platform is characterized by comprising an NDB management monitoring platform, an NDB monitoring unit and a client, wherein,
the NDB management monitoring platform is used for receiving available navigation frequency information; the navigation frequency time-sharing multiplexing use plan comprises NDB equipment information, flight time, an airplane and navigation frequency is arranged according to the received available navigation frequency information and the flight plan; the navigation frequency time-sharing multiplexing method is used for sending the navigation frequency corresponding to the flight time to an NDB monitoring unit and a client to be started according to the navigation frequency time-sharing multiplexing use plan;
the NDB monitoring unit is used for controlling the on/off of the NDB equipment connected with the NDB monitoring unit according to the received navigation frequency corresponding to the flight time and setting the working frequency according to the navigation frequency;
the client is used for sending the flight plan containing the NDB equipment information, the flight time and the airplane to the NDB management and monitoring platform; the navigation frequency time-sharing multiplexing method is used for sending the navigation frequency corresponding to the flight time to the aircraft with the flight plan corresponding to the flight time according to the received navigation frequency time-sharing multiplexing use plan;
the NDB management and monitoring platform comprises an NDB management center, a communication server, an application server and a database server, wherein,
The NDB management center is used for receiving available navigation frequency information; the flight plan comprises NDB equipment information, flight time and an airplane, which are sent by a client; the navigation system is used for sending the received available navigation frequency information and the flight plan to a communication server;
the communication server is used for sending the received available navigation frequency information and the received flight plan to the application server; the device comprises an NDB monitoring unit, a client and an NDB control unit, wherein the NDB monitoring unit is used for sending received corresponding NDB equipment, flight time and navigation frequency of an airplane to the client and the NDB monitoring unit corresponding to the NDB equipment;
the application server is used for arranging a navigation frequency time-division multiplexing use plan containing NDB equipment information, flight time, an airplane and navigation frequency according to the received available navigation frequency information and the flight plan, and writing the navigation frequency time-division multiplexing use plan into the database server; the navigation system comprises a database server, a communication server, a navigation server and a navigation server, wherein the database server is used for reading navigation frequencies of corresponding NDB equipment, flight time and an airplane according to a navigation frequency time-sharing multiplexing use plan and sending the navigation frequencies of the corresponding NDB equipment, flight time and the airplane to the communication server;
the database server is used for storing the navigation frequency time-sharing multiplexing use plan.
2. The offshore oil drilling platform helicopter navigation frequency reuse system of claim 1, wherein the system further comprises:
the application server is used for writing the remaining available navigation frequency information after the navigation frequency time-division multiplexing use plan is arranged into the database server; the method comprises the steps of receiving a navigation frequency application request message, inquiring and distributing a navigation frequency from a database server according to a navigation frequency time-sharing multiplexing use plan and the rest available navigation frequency information, writing the distributed navigation frequency into the database server, generating a navigation frequency application approval message, and sending the message to a communication server; the method comprises the steps of receiving a navigation frequency cancellation request message sent by a communication server, writing the navigation frequency to be cancelled into a database server, generating a navigation frequency cancellation approval message, and sending the navigation frequency cancellation approval message to the communication server;
the NDB monitoring unit is used for receiving the radio frequency starting command and sending a navigation frequency application request message to the communication server; the device is used for receiving a navigation frequency application approval message sent by the communication server and setting the working frequency of the NDB equipment connected with the communication server according to the navigation frequency application approval message; the communication server is used for receiving the radio frequency command and sending a navigation frequency cancellation request message to the communication server; the navigation frequency cancellation approval message is used for receiving the navigation frequency cancellation approval message sent by the communication server and canceling the navigation frequency used by the NDB equipment connected with the communication server according to the navigation frequency cancellation approval message;
The communication server is used for sending the received navigation frequency application request message to an application server; the navigation frequency application approval message is used for sending the received navigation frequency application approval message to an NDB monitoring unit and a client; the navigation frequency cancellation request message is used for sending the received navigation frequency cancellation request message sent by the NDB monitoring unit to an application server; and the navigation frequency cancellation approval message is used for sending the received navigation frequency cancellation approval message sent by the application server to an NDB monitoring unit and a client.
3. The offshore oil drilling platform helicopter navigation frequency reuse system of claim 2, wherein the system further comprises:
the NDB monitoring unit is used for sending the operation condition information of the NDB monitoring unit and the operation condition information of the NDB equipment connected with the NDB monitoring unit to the communication server;
the communication server is used for sending the received operation condition information of the NDB monitoring unit and the operation condition information of the NDB equipment to the NDB management center;
the NDB management center is used for displaying the received operation condition information of the NDB monitoring unit and the operation condition information of the NDB equipment;
the operation condition information of the NDB monitoring unit comprises a switch state, a device number and working time, and the operation condition information of the NDB device comprises the switch state, the device number, the working frequency and the working time.
4. The offshore oil drilling platform helicopter navigation frequency reuse system of claim 3, further comprising:
the client is used for sending the aircraft running condition information to the communication server;
the communication server is used for sending the received aircraft running condition information to an NDB management center;
the NDB management center is used for displaying the received aircraft running condition information;
the aircraft running state information comprises a switch state, a device number, a compass working frequency and a working time.
5. The helicopter navigation frequency multiplexing method for the offshore oil drilling platform is characterized by comprising the following steps of:
the NDB management monitoring platform receives available navigation frequency information;
the client sends the flight plan containing the NDB equipment information, the flight time and the airplane to the NDB management and monitoring platform;
the NDB management monitoring platform arranges a navigation frequency time-sharing multiplexing use plan containing NDB equipment information, flight time, an airplane and navigation frequency according to the received available navigation frequency information and the flight plan;
the NDB management monitoring platform transmits the navigation frequency corresponding to the flight time to an NDB monitoring unit and a client to be started according to the navigation frequency time-sharing multiplexing use plan;
The NDB monitoring unit to be started controls the NDB equipment connected with the NDB monitoring unit to be started and closed according to the received navigation frequency corresponding to the flight time, and sets the working frequency according to the navigation frequency;
the client transmits the navigation frequency corresponding to the flight time to the aircraft with the flight plan corresponding to the flight time according to the received navigation frequency time-sharing multiplexing use plan;
in an NDB management monitoring platform, the specific method comprises the following steps:
the NDB management center receives available navigation frequency information;
the NDB management center receives flight plans, which are sent by the client and contain NDB equipment information, flight time and aircrafts;
the NDB management center sends the received available navigation frequency information and the flight plan to a communication server;
the communication server sends the received available navigation frequency information and the flight plan to the application server;
the application server programs a navigation frequency time-division multiplexing use plan containing NDB equipment information, flight time, an airplane and navigation frequency according to the received available navigation frequency information and the flight plan, and writes the navigation frequency time-division multiplexing use plan into the database server;
the application server reads the navigation frequency of the corresponding NDB equipment, flight time and airplane from the database server according to the navigation frequency time-sharing multiplexing use plan, and sends the navigation frequency of the corresponding NDB equipment, flight time and airplane to the communication server;
And the communication server sends the received corresponding NDB equipment, flight time and navigation frequency of the airplane to the client and the NDB monitoring unit corresponding to the NDB equipment.
6. The offshore oil drilling platform helicopter navigation frequency reuse method of claim 5, further comprising:
the application server also writes the remaining available navigation frequency information after the navigation frequency time-division multiplexing use plan is arranged into the database server;
the NDB monitoring unit receives the radio frequency starting command and sends a navigation frequency application request message to the communication server;
the communication server sends the received navigation frequency application request message to an application server;
the application server receives the navigation frequency application request message, queries and distributes a navigation frequency from a database server according to a navigation frequency time-sharing multiplexing use plan and the rest available navigation frequency information, writes the distributed navigation frequency into the database server, generates a navigation frequency application approval message, and sends the navigation frequency application approval message to the communication server;
the communication server sends the received navigation frequency application approval message to an NDB monitoring unit and a client;
The NDB monitoring unit receives a navigation frequency application approval message sent by the communication server, and sets the working frequency of NDB equipment connected with the NDB monitoring unit according to the navigation frequency application approval message;
the NDB monitoring unit receives radio frequency-related commands and sends a navigation frequency cancellation request message to the communication server;
the communication server sends the received navigation frequency cancellation request message sent by the NDB monitoring unit to an application server;
the application server receives the navigation frequency cancellation request message sent by the communication server, writes the navigation frequency to be cancelled into the database server, generates a navigation frequency cancellation approval message, and sends the navigation frequency cancellation approval message to the communication server;
the communication server sends the received navigation frequency cancellation approval message sent by the application server to an NDB monitoring unit and a client;
and the NDB monitoring unit receives the navigation frequency cancellation approval message sent by the communication server, and cancels the navigation frequency used by the NDB equipment connected with the NDB monitoring unit according to the navigation frequency cancellation approval message.
7. The offshore oil drilling platform helicopter navigation frequency reuse method of claim 6, further comprising:
The NDB monitoring unit sends the running state information of the NDB monitoring unit and the running state information of the NDB equipment connected with the NDB monitoring unit to the communication server;
the communication server sends the received operation condition information of the NDB monitoring unit and the operation condition information of the NDB equipment to an NDB management center;
the NDB management center displays the received operation condition information of the NDB monitoring unit and the operation condition information of the NDB equipment;
the operation condition information of the NDB monitoring unit comprises a switch state, a device number and working time, and the operation condition information of the NDB device comprises the switch state, the device number, the working frequency and the working time.
8. The offshore oil drilling platform helicopter navigation frequency reuse method of claim 7, further comprising:
the client sends the aircraft running state information to the communication server;
the communication server sends the received aircraft running condition information to an NDB management center;
the NDB management center displays the received aircraft running state information;
the aircraft running state information comprises a switch state, a device number, a compass working frequency and a working time.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB686732A (en) * | 1950-06-20 | 1953-01-28 | Commw Scient Ind Res Org | Improved navigation system using radio beacons |
| CN104332072A (en) * | 2014-10-22 | 2015-02-04 | 北京航空航天大学 | General aviation flight plan management system |
| CN204791570U (en) * | 2015-07-21 | 2015-11-18 | 中海油信息科技有限公司 | Offshore oil and gas field helicopter communication navigation remote monitering system |
| CN105469645A (en) * | 2014-09-30 | 2016-04-06 | 波音公司 | Flight object communication system |
| CN108107402A (en) * | 2017-12-18 | 2018-06-01 | 福建星海通信科技有限公司 | A kind of directionless Radio Beacon long-distance monitoring method of aviation and its system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6708090B2 (en) * | 2000-02-29 | 2004-03-16 | Honeywell International Inc. | Method, apparatus and computer program product for managing line-of-sight communications |
| FR2894368B1 (en) * | 2005-12-07 | 2008-01-25 | Thales Sa | DEVICE AND METHOD FOR AUTOMATED CONSTRUCTION OF EMERGENCY TRACK FOR AIRCRAFT |
| US10431100B2 (en) * | 2014-10-31 | 2019-10-01 | Aircraft Owners And Pilots Association | Interactive and customizable flight planning tool |
| KR102419355B1 (en) * | 2016-01-27 | 2022-07-12 | 한국전자통신연구원 | Methods and Procedures for Dynamic Channel Assignment and Change in UAS Control and Non-Payload Communication |
-
2018
- 2018-10-15 CN CN201811199628.3A patent/CN109444806B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB686732A (en) * | 1950-06-20 | 1953-01-28 | Commw Scient Ind Res Org | Improved navigation system using radio beacons |
| CN105469645A (en) * | 2014-09-30 | 2016-04-06 | 波音公司 | Flight object communication system |
| CN104332072A (en) * | 2014-10-22 | 2015-02-04 | 北京航空航天大学 | General aviation flight plan management system |
| CN204791570U (en) * | 2015-07-21 | 2015-11-18 | 中海油信息科技有限公司 | Offshore oil and gas field helicopter communication navigation remote monitering system |
| CN108107402A (en) * | 2017-12-18 | 2018-06-01 | 福建星海通信科技有限公司 | A kind of directionless Radio Beacon long-distance monitoring method of aviation and its system |
Non-Patent Citations (3)
| Title |
|---|
| "NDB、VOR与GPS导航方式分析比较";王海斌等;《数字技术与应用》(第2期);第226、228页 * |
| "Measurement Setup for Notch Evaluation of Narrowband PLC Devices";George Hallak et al;《GLOBECOM 2017 - 2017 IEEE Global Communications Conference》;第1-6页 * |
| "浅析NDB使用方法";魏经堂等;《现代教育科学》(第1期);第169-170页 * |
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