CN112731491B - Ship position coding terminal system based on Beidou - Google Patents
Ship position coding terminal system based on Beidou Download PDFInfo
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- CN112731491B CN112731491B CN202011382004.2A CN202011382004A CN112731491B CN 112731491 B CN112731491 B CN 112731491B CN 202011382004 A CN202011382004 A CN 202011382004A CN 112731491 B CN112731491 B CN 112731491B
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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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
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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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
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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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/14—Receivers specially adapted for specific applications
- G01S19/17—Emergency applications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/025—Services making use of location information using location based information parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention relates to a Beidou-based ship position coding terminal system, which comprises: the Beidou RDSS unit is connected with the lower computer through a serial port, the upper computer is connected with the lower computer through a serial port, and the lower computer is electrically connected with the alarm; the Beidou RDSS unit positions the marine ship by using a Beidou satellite to obtain ship longitude and latitude position data; the lower computer performs Geohash coding on the longitude and latitude position data of the ship and transmits coded result data back to the Beidou RDSS unit; the Beidou RDSS unit is also used for transmitting the coded ship position data and the coded ship identification information to a shore-based ship position management command center; the upper computer sends a start/stop coding instruction to control the lower computer to start/stop coding operation, sends an alarm opening/closing instruction to enable the lower computer to control the alarm to give out an alarm or not to give out an alarm, and simultaneously controls the Beidou RDSS unit to send/stop sending an alarm signal to the shore-based ship position management command center, and aims at/removes the current position alarm prompt.
Description
Technical Field
The invention relates to the technical field of position positioning, in particular to a Beidou-based ship position coding terminal system which is used for ship monitoring and management, effective rescue search of marine ships and the like.
Background
Offshore operation belongs to high risk industry, especially offshore small ships, and the disaster tolerance is poor, easily takes place the accident. The development of search and rescue aiming at small ships is the primary task of maritime search and rescue work in China. China builds strong oceans, and therefore the offshore ship management and ocean safety production are bound to be regarded as important requirements, and the offshore order is maintained.
Due to the lack of a base station at sea, the positioning and communication of a marine vessel cannot depend on ground communication means and modes. The Beidou satellite navigation system, referred to as Beidou navigation satellite system (BDS) for short, is an autonomous construction and independent operation global satellite navigation system being implemented in China. With the successful transmission of the last global networking satellite of the Beidou I, the constellation deployment of the Beidou global satellite navigation system is completely finished. The Beidou satellite navigation system can provide high-precision and high-reliability positioning, navigation and time service for various users all day long in the global range, has short message communication capacity, and provides technical feasibility for positioning and communication of the device.
Direct recording, storing and managing of longitude and latitude ship position information is a common practice of the current ship monitoring system (VMS). Based on satellite navigation and positioning technology, a user can more conveniently acquire position information, but massive spatial position data and analysis, processing and storage of the spatial position data need a high-performance computer and an optimization algorithm, and particularly when a ship is in disaster and needs rescue. At present, the VMS can only directly search and calculate according to the position (floating point type longitude and latitude information) of a wrecked ship, and at the moment, the calculation of the distance between each ship position at a certain moment is large in calculation amount, long in time and large in occupied memory resource.
The Geohash is a geocoding mode which alternately divides the earth surface into two parts along the directions of longitude and latitude and uses a binary number to represent two-dimensional space floating point type longitude and latitude information. The Geohash subordinate unit grids are obtained by dividing the superior unit grids, the space Z curve filling is essentially realized, 4 Geohash grids in a Z shape belong to the same father grid, and binary codes of the 4 Geohash grids have the same prefix, so that the technical possibility is provided for the quick search of nearby rescue ships. Geohash has been applied to fast point of interest searches, query of area data regions, etc. The Geohash is used for coding, recording and storing and managing the ship position information, so that the communication resources and the storage space for ship position management can be effectively saved, and when a ship needs to search for a nearby ship of a concerned ship (such as a wreck ship) under special conditions such as ship wreck, the character prefix matching operation is directly performed with the concerned ship (such as a wreck ship), so that the nearby ship can be quickly matched and searched, and the waiting rescue time is effectively reduced.
Disclosure of Invention
The invention combines the Beidou satellite navigation positioning, the short message two-way communication and the Geohash coding technology, directly codes the ship position information represented by the longitude and the latitude in real time and sends the coded ship position information to the background database of the command center in a short message mode so as to solve the problem of ship position management of marine ships, particularly solve the problem that mass ship position data occupies larger memory resources when searching for rescue ships nearby a failed ship, and facilitate the quick search for nearby ships according to the codes to carry out rescue when ships are in danger.
The invention solves the technical problems through the following technical scheme:
the invention provides a Beidou-based berth coding terminal system which is characterized by comprising a Beidou RDSS unit, an upper computer, a lower computer and an alarm, wherein the Beidou RDSS unit is connected with the lower computer through a serial port;
the Beidou RDSS unit is used for positioning a marine ship by using a Beidou satellite to obtain ship longitude and latitude position data and transmitting the ship longitude and latitude position data to a lower computer;
the lower computer is used for carrying out Geohash coding on the longitude and latitude position data of the ship and transmitting coded result data to the Beidou RDSS unit;
the Beidou RDSS unit is also used for transmitting the coded ship position data and the coded ship identification information to a shore-based ship position management command center;
the upper computer is used for sending a start/stop coding instruction to control the lower computer to start/stop coding operation and sending an on/off alarm instruction to control the alarm to alarm/not alarm.
Preferably, the lower computer is connected with the alarm through a triode, and is used for opening the alarm through a triode trigger when receiving an alarm opening instruction sent by the upper computer so that the alarm realizes one-key alarm, and closing the alarm through the triode trigger when receiving an alarm closing instruction sent by the upper computer so that the alarm realizes one-key alarm closing.
Preferably, the upper computer is used for sending a start/stop coding instruction to the lower computer through an RS232/RS485 serial port, the lower computer is used for starting/stopping communication with the Beidou RDSS unit through the RS232 serial port, generating interruption, entering a reading program, reading ship longitude and latitude position data input by the Beidou RDSS unit, and storing the ship longitude and latitude position data into the data register RAM.
Preferably, the lower computer adopts a single chip microcomputer to solidify the coding program for performing one-dimensional conversion on the two-dimensional longitude and latitude position information of the ship so as to realize the function of coding the position data of the ship.
The working process of the invention is as follows:
the Beidou RDSS unit 1 receives a carrier signal which is sent by a Beidou navigation satellite and contains a ranging code and a navigation message through an antenna, positions and resolves the acquired ship longitude and latitude position information through a navigation satellite signal, and transmits the resolved ship longitude and latitude position information to the lower computer 3 through a data interface (RS 232);
when the upper computer 2 directly sends an operation instruction to the lower computer 3:
(1) when the upper computer 2 sends a 'start/stop coding' instruction to the lower computer 3, firstly, the lower computer 3 starts/stops (1) to communicate with the Beidou RDSS unit 1, at the moment, the lower computer 3 is interrupted, enters/exits a reading program, reads ship positioning data input by the Beidou RDSS unit 1, and stores the ship longitude and latitude position data into a data Register (RAM); executing the solidified Geohash coding program to code the ship longitude and latitude position data stored in the register; thirdly, outputting the coding result to a Beidou RDSS unit 1, and sending the coding result of the lower computer 3 on the ship position to a shore-based ship position management command center in a short message mode through the Beidou RDSS unit 1 in combination with other ship information such as ship ID;
(2) when the ship breaks down or meets an emergency, the upper computer 2 sends an instruction set of turning ON the alarm to the lower computer 3 through serial port communication, the lower computer 3 triggers (turns ON/ON) the alarm 4 through a triode to realize one-key alarm, and the operation is simple; meanwhile, the Beidou RDSS unit 1 is controlled to send an alarm signal to a shore-based ship position management command center, and alarm prompt is carried out aiming at the current position;
(3) when the ship is in a safe sailing state without danger, the upper computer 2 sends an instruction set of 'alarm turn-OFF' to the lower computer 3, and the lower computer 3 realizes one-key alarm turn-OFF by triggering (turn-OFF/OFF) the alarm 4 through a triode, so that resources are saved; and meanwhile, the Beidou RDSS unit 1 is controlled to stop sending alarm signals to the shore-based ship position management command center, and the current position is removed to carry out alarm prompt.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows:
(1) data reference basis
According to the method, the self position information, the sending time and the like after the Geohash codes are sent through the Beidou short message communication function, a shore-based ship position management command center can quickly and directly search ships with the same codes according to the coded information, and important data reference can be provided for marine emergency rescue of management departments.
(2) Memory resource occupation
As the Geohash converts the latitude and longitude space two-dimensional double-precision floating point (double) data into the one-dimensional character string code, the occupation of the storage space is effectively reduced.
(3) The channel transmission speed is high
The data is stored and transmitted according to bits (signals of 0 and 1), the channel speed refers to the number of bits which can be transmitted per second, the number of bits after coding is small, the storage space occupied by storage is small, and the communication speed of remote transmission of the coded ship position information is high under the same condition.
Drawings
Fig. 1 is a schematic structural diagram of a Beidou-based marine vessel berth coding system according to a preferred embodiment of the present invention.
Fig. 2 is a flow chart of a Geohash coding algorithm of a program of a single chip microcomputer in a lower computer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1 and 2, the embodiment provides a ship position coding terminal system based on the big dipper, which includes a big dipper RDSS unit 1, an upper computer 2, a lower computer 3 and an alarm 4, wherein the big dipper RDSS unit 1 is connected with the lower computer 3 through a serial port, the upper computer 2 is connected with the lower computer 3 through an RS232/RS485 serial port, and the lower computer 3 is connected with the alarm 4 through a triode.
The Beidou RDSS unit 1 is used for positioning and communicating by using a Beidou navigation Satellite RDSS (Radio Determination Satellite Service) load. The 101 big dipper RDSS unit integrates RDSS radio frequency transceiver chip, power amplifier chip, baseband circuit, etc., and can completely realize all functions of RDSS signal transceiver and modulation and demodulation. The system has high integration level and low power consumption, and is very suitable for the requirement of large-scale application of the system.
The upper computer 2 is a computer which directly sends an operation instruction to the lower computer 3, and the upper computer 2 transmits a set instruction set to the lower computer 3 through a serial port. The upper computer 2 determines by a user (or a preset program) to send an operation instruction, wherein the operation instruction is (1) whether to execute a coding program and send a code; (2) and controlling the alarm 4 to be turned on/off, and giving an alarm according to the current position.
The lower computer 3 is a computer which directly controls the equipment to obtain the equipment condition. The lower computer 3 is connected with and controls the Beidou RDSS unit 1 and the alarm 4; the lower computer 3 of the patent is realized by a single chip microcomputer. The singlechip solidifies the coding program for performing one-dimensional conversion on the two-dimensional longitude and latitude position information of the ship in a program memory (ROM) so as to realize the function of coding the position data of the ship.
The single chip microcomputer selects stm32f4 series, the advanced technology and high performance of the single chip microcomputer can well meet the design requirements, and the series of single chip microcomputers are compatible with the stm32f2 series, so that the expansion or upgrading of products by users is facilitated.
The Beidou RDSS unit 1 is used for positioning a marine ship by using a Beidou satellite to obtain ship longitude and latitude position data and transmitting the ship longitude and latitude position data to the lower computer 3.
And the lower computer 3 is used for carrying out Geohash coding on the longitude and latitude position data of the ship and transmitting the coded result data back to the Beidou RDSS unit 1.
The Beidou RDSS unit 1 is also used for transmitting the coded ship position data and the coded ship identification information to a shore-based ship position management command center.
The upper computer 2 is used for sending a start/stop coding instruction to control the lower computer 3 to start/stop coding operation and sending an alarm opening/closing instruction to enable the lower computer 3 to control the alarm 4 to give an alarm or not to give an alarm.
When the upper computer 2 sends a 'start/stop coding' instruction to the lower computer 3 through the RS232 serial port, the lower computer 3 starts/stops communication with the Beidou RDSS unit 1 through the serial port (RS232), at the moment, the lower computer 3 is interrupted, enters/exits a reading program, reads the ship longitude and latitude position data input by the Beidou RDSS unit 1, and stores the ship longitude and latitude position data into the data register RAM.
The alarm 4 reminds or warns oneself or ships around in an emergency state through the form of sound production and luminescence. The alarm 4 is connected with the lower computer 3 through a triode, the lower computer 3 can make a sound through a high-low level, and the lower level is connected with the base of the triode. Firstly, when the ship breaks down or meets an emergency, an instruction set of 'turning ON an alarm' issued by the upper computer 2 is transmitted to the lower computer 3 through an RS232 serial port, and the lower computer 3 can realize one-key alarm by triggering (turning ON/ON) the alarm 4 through a triode, so that the operation is simple; meanwhile, the Beidou RDSS unit 1 is controlled to send an alarm signal to a shore-based ship position management command center, and alarm prompt is carried out aiming at the current position; secondly, when the ship is in a safe sailing state without danger, the upper computer 2 sends an instruction set of 'alarm turn-OFF' to the lower computer 3, and the lower computer 3 can turn OFF the alarm by one key through triggering (turn-OFF/OFF) the alarm 4 by a triode, so that resources are saved; and meanwhile, the Beidou RDSS unit 1 is controlled to stop sending alarm signals to the shore-based ship position management command center, and the current position is removed to carry out alarm prompt.
The invention combines the special short message bidirectional communication function of the big Dipper and the Geohash coding technology to realize the coding of the ship position of the marine ship and send the coding to the command center on the shore. The technology can directly encode the ship position information represented by the longitude and the latitude in real time and send the encoded ship position information to the background database of the command center in a short message mode, so that ships can be conveniently and quickly searched for nearby ships according to the codes in danger, and rescue is facilitated.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (3)
1. The Beidou-based berth coding terminal system is characterized by comprising a Beidou RDSS unit, an upper computer, a lower computer and an alarm, wherein the Beidou RDSS unit is connected with the lower computer through a serial port;
the Beidou RDSS unit is used for positioning a marine ship by using a Beidou satellite to obtain ship longitude and latitude position data and transmitting the ship longitude and latitude position data to a lower computer;
the lower computer is used for carrying out Geohash coding on the longitude and latitude position data of the ship and transmitting coded result data back to the Beidou RDSS unit;
the Beidou RDSS unit is also used for transmitting the coded ship position data and the coded ship identification information to a shore-based ship position management command center;
the upper computer is used for sending a start/stop coding instruction to control the lower computer to start/stop coding operation and sending an on/off alarm instruction to control the alarm to alarm/not alarm by the lower computer;
the lower computer is connected with the alarm through a triode, and is used for turning on the alarm through a triode trigger when receiving an alarm turning-on instruction sent by the upper computer so as to enable the alarm to realize one-key alarm, and turning off the alarm through the triode trigger when receiving an alarm turning-off instruction sent by the upper computer so as to enable the alarm to realize one-key alarm turning-off;
the lower computer is used for controlling the Beidou RDSS unit 1 to send an alarm signal to a shore-based ship position management command center when receiving an alarm opening instruction sent by the upper computer, and carrying out alarm prompt aiming at the current position; when an alarm closing instruction sent by an upper computer is received, the Beidou RDSS unit is controlled to stop sending alarm signals to the shore-based ship position management command center, and the current position is relieved to give an alarm.
2. The Beidou-based space encoding terminal system according to claim 1, wherein the upper computer is used for sending a start/stop encoding instruction to the lower computer through an RS232/RS485 serial port, and the lower computer is used for starting/stopping communication with the Beidou RDSS unit through the RS232 serial port, generating interruption, entering/exiting a reading program, reading the ship longitude and latitude position data input by the Beidou RDSS unit, and storing the ship longitude and latitude position data into the data register RAM.
3. The Beidou-based berth coding terminal system according to claim 1, wherein the lower computer adopts a single chip microcomputer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011382004.2A CN112731491B (en) | 2020-12-01 | 2020-12-01 | Ship position coding terminal system based on Beidou |
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| CN202011382004.2A CN112731491B (en) | 2020-12-01 | 2020-12-01 | Ship position coding terminal system based on Beidou |
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| CN112731491B true CN112731491B (en) | 2021-09-10 |
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| US9807550B2 (en) * | 2015-11-20 | 2017-10-31 | Yahoo Holdings, Inc. | Weather presentation |
| CN111372242A (en) * | 2020-01-16 | 2020-07-03 | 深圳市随手商业保理有限公司 | Fraud identification method, device, server and storage medium |
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2020
- 2020-12-01 CN CN202011382004.2A patent/CN112731491B/en active Active
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| CN201903977U (en) * | 2010-06-01 | 2011-07-20 | 深圳华北工控股份有限公司 | Fishing boat safety system based on bei-dou positioning |
| CN102944883A (en) * | 2012-10-23 | 2013-02-27 | 吴杰 | Seaborne rescue localizer based on Beidou RDSS (Radio Determination Satellite Service) navigation system and system |
| US9807550B2 (en) * | 2015-11-20 | 2017-10-31 | Yahoo Holdings, Inc. | Weather presentation |
| CN206451365U (en) * | 2017-01-12 | 2017-08-29 | 中国水产科学研究院南海水产研究所 | A kind of ship's fix monitoring system based on the Big Dipper |
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| CN112731491A (en) | 2021-04-30 |
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