CN104360364A - Search and rescue positioning terminal and method based on AIS and Beidou navigation satellite system - Google Patents
Search and rescue positioning terminal and method based on AIS and Beidou navigation satellite system Download PDFInfo
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- CN104360364A CN104360364A CN201410647289.6A CN201410647289A CN104360364A CN 104360364 A CN104360364 A CN 104360364A CN 201410647289 A CN201410647289 A CN 201410647289A CN 104360364 A CN104360364 A CN 104360364A
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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
- 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
- G01S19/35—Constructional details or hardware or software details of the signal processing chain
- G01S19/36—Constructional details or hardware or software details of the signal processing chain relating to the receiver frond end
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- Radar, Positioning & Navigation (AREA)
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- Computer Networks & Wireless Communication (AREA)
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- General Physics & Mathematics (AREA)
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- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention provides a search and rescue positioning terminal based on an AIS and a Beidou navigation satellite system. The search and rescue positioning terminal comprises a core processing module, a GNSS module, an AIS transmitter module and a Beidou short message receiving and dispatching module. The core processing module is used for controlling the work of the search and rescue positioning terminal. The GNSS module is connected with the core processing module and used for positioning the search and rescue positioning terminal through a satellite so as to acquire positioning data. The AIS transmitter module is connected with the core processing module and used for packaging the positioning data into standard AIS information to be emitted. The Beidou short message receiving and dispatching module is connected with the core processing module and used for packaging the positioning data into a Beidou short message to be emitted. The invention further provides a search and rescue positioning method based on the AIS and the Beidou navigation satellite system. According to the search and rescue positioning terminal and method based on the AIS and the Beidou navigation satellite system, the AIS and the Beidou navigation satellite system are combined to be used according to personal aquatic search and rescue, the problems of long-distance and short-distance continuous warning and positioning search and rescue are effectively solved, and the search and rescue efficiency is improved.
Description
Technical field
The present invention relates to a kind of search and rescue locating terminal and search and rescue localization method, specifically refer to a kind of based on ship automatic identification system (AIS, Automatic Identification System) and Beidou satellite navigation system (the abbreviation Big Dipper, BDS, BeiDou Navigation Satellite System) search and rescue locating terminal and method, it belongs to the technical field of search and rescue location waterborne and communication and navigation, is specially adapted to the situation of distress alerting waterborne and position positioning reporting.
Background technology
At present, the search and rescue location waterborne used in prior art and communicator are mainly based on the personal emergency position indicating instrument (PLB in COSPAS-SARSAT COSPAS-SARSAT system and GPS/GLONASS system, Personal Locator Beacon), emergency position-indicating radiobeacons (EPIRB, Emergency Position Indicating Radio Beacon); The PLB of short-range radio direction finding; The equipment of the types such as SART (SART, Search and Rescue Radar Transponder), AIS-SART.
Search and rescue equipment based on COSPAS-SARSAT COSPAS-SARSAT or GPS/GLONASS is by COSPAS-SARSAT satellite reception and measures the radio signal of the 406MHz/203MHz that PLB, EPIRB entrained by person in distress launch, and calculates the particular location of person in distress; Or the equipment such as self-contained PLB, EPIRB of person in distress possesses the positioning function of GPS/GLONASS, therefore COSPAS-SARSAT satellite directly can obtain the longitude and latitude positional information at the current place of person in distress from the radio signal of received 406MHz/203MHz.But this equipment can only carry out remote alarms, and there is hysteresis phenomenon in the information transmission utilizing COSPAS-SARSAT satellite to carry out, easily incurs loss through delay search and rescue.
Cardinal principle based on the PLB of short-range radio direction finding is, receives the signal that function reception PLB launches, and calculates the current residing position of person in distress.But, this equipment be mainly used in short range search and rescue, be applicable to the man overboards such as yacht report to the police search and rescue etc.Its topmost shortcoming is: receiving system and existing marine communication equipment incompatible, can not extensively promote; And when user is more, the reception direction finding of signal will get muddled, and cause thrashing.
The cardinal principle of SART is, it can send answer signal, thus form a series of image on the screen of Rescue Radar after receiving the signal of boat-carrying Rescue Radar transmitting, instruction distress position.This equipment is mainly used in the short-range detecting of the large-scale Waterborne movable things such as boats and ships, and the signal only having special Rescue Radar just can scan this equipment to launch.
Then, its emission standard AIS message, the AIS of neighbouring ship will receive this message to the cardinal principle of AIS-SART, and show its position.This equipment is a kind of substitute of SART, on multiplex motive objects on the water.It is compared with SART, and AIS-SART can be mutually compatible with AIS equipment, and AIS equipment widespread use on boats and ships, therefore AIS-SART is more practical than SART.But its shortcoming is, can only be applicable to short-range detecting.
In sum, existing search and rescue equipment waterborne is used for the over-water floats such as boats and ships, very few for individual; And itself otherwise adopt short-haul connections, or adopt telecommunication, can not both take into account; Therefore, existing search and rescue equipment waterborne failing solves search and rescue waterborne navigate to short-haul connections location continuous process from telecommunication.
Summary of the invention
The object of the present invention is to provide a kind of search and rescue locating terminal based on AIS and Beidou satellite navigation system and method, for individual's search and rescue waterborne, in conjunction with utilizing AIS and Beidou satellite navigation system, efficiently solve the problem that the continuous alarm of long-range and short range and location are searched and rescued, improve search efficiency.
For achieving the above object, the invention provides a kind of search and rescue locating terminal based on AIS and Beidou satellite navigation system, comprise: core processing module, it is for controlling the work of described search and rescue locating terminal; GNSS module, it is connected with described core processing module, and for being positioned the current residing particular location of described search and rescue locating terminal by satellite, and output packet contains the locator data of latitude and longitude information to described core processing module; AIS transmitter module, it is connected with described core processing module, for receiving the locator data sent by core processing module, according to AIS standard-required, the conversion of digital signal to radiofrequency signal is carried out to this locator data, and the locator data being converted to radiofrequency signal is encapsulated as standard A IS message launches, at AIS channels broadcast; Big Dipper short message transceiver module, it is connected with described core processing module, for receiving the locator data sent by core processing module, the conversion of digital signal to radiofrequency signal is carried out to this locator data, and the locator data being converted to radiofrequency signal is encapsulated as Big Dipper short message launches, propagate to the Big Dipper number of specifying; This Big Dipper short message transceiver module, also for receiving Big Dipper short message, carries out the conversion of radiofrequency signal to digital signal to this Big Dipper short message, and the Big Dipper short message being converted to digital signal is sent to core processing module; The Big Dipper short message that this receives comprises power control information and detecting information to searching and rescuing locating terminal, for testing described search and rescue locating terminal.
Described GNSS module is being positioned searching and rescuing the current residing particular location of locating terminal by satellite, while obtaining the latitude and longitude information of current location, also record temporal information when obtaining this latitude and longitude information in the lump, and described temporal information is sent to core processing module together with latitude and longitude information as locator data.
Described AIS transmitter module is encoded successively to receiving the locator data sent by core processing module, convert, modulates and is amplified, and realizes the conversion of digital signal to radiofrequency signal.
In the standard A IS message that described AIS transmitter module encapsulation is formed, also comprise the identity identification information of the search and rescue locating terminal being sent to AIS transmitter module by core processing module; In the Big Dipper short message that described Big Dipper short message transceiver module encapsulation is formed, also comprise the identity identification information of the search and rescue locating terminal being sent to Big Dipper short message transceiver module by core processing module.
Described core processing module, for controlling the modules work of searching and rescuing locating terminal, comprises: control GNSS module opens duty, and carries out solution frame to the locator data that this GNSS module exports; Framing is carried out to the locator data that will be sent to AIS transmitter module and Big Dipper short message transceiver module; And solution frame is carried out to the Big Dipper short message that Big Dipper short message transceiver module exports.
Search and rescue locating terminal based on AIS and Beidou satellite navigation system provided by the present invention, also comprise Anneta module, this Anneta module comprises: GNSS Anneta module, itself and described GNSS model calling, receive the current locator data of the search and rescue locating terminal that obtained by satellite for completing GNSS module; AIS Anneta module, it is connected with described AIS transmitter module, for completing the transmitting of AIS transmitter module to standard A IS message; Big Dipper short message Anneta module, it is connected with described Big Dipper short message transceiver module, for completing Big Dipper short message transceiver module to the transmitting and receiving of Big Dipper short message.
Search and rescue locating terminal based on AIS and Beidou satellite navigation system provided by the present invention, also comprises power supply, and it provides working power for searching and rescuing locating terminal; Power management module, it is connected with described core processing module, GNSS module, AIS transmitter module, Big Dipper short message transceiver module and power supply respectively, for carrying out voltage transformation for each different module above-mentioned respectively, controlling power supply output and control power source charges.
Described power management module comprises: charge management module, and it is connected with described power supply, for monitoring the state of charge of current power, carrying out charging and controlling, and monitor the charged state of current power to power supply; Power transfer module, it is connected with described core processing module, GNSS module, AIS transmitter module, Big Dipper short message transceiver module and power supply respectively, operating voltage for being exported by power supply changes into core processing module, GNSS module, AIS transmitter module and Big Dipper short message transceiver module operating voltage required separately respectively independently to provide the working power of each module, and under the control of core processing module, realize the independently-powered and power-off to GNSS module, AIS transmitter module and Big Dipper short message transceiver module respectively.
The present invention also provides a kind of search and rescue localization method based on AIS and Beidou satellite navigation system, and the search and rescue locating terminal described in the method uses realizes, and specifically comprises following steps:
S1, after personnel are in danger on the water, open the search and rescue locating terminal carried with, provide operating voltage by power supply;
S2, core processing module control GNSS module are started working, this GNSS module utilizes GNSS Anneta module to be positioned the current residing particular location of described search and rescue locating terminal by satellite, and output packet contains the locator data of latitude and longitude information and temporal information when obtaining this latitude and longitude information to described core processing module;
The identity identification information of described locator data and search and rescue locating terminal is sent to AIS transmitter module and Big Dipper short message transceiver module by S3, core processing module simultaneously; This AIS transmitter module, according to AIS standard-required, carries out the conversion of digital signal to radiofrequency signal to this locator data and identity identification information, and is encapsulated as standard A IS message and is launched by AIS Anneta module, at AIS channels broadcast; This Big Dipper short message transceiver module carries out the conversion of digital signal to radiofrequency signal to this locator data and identity identification information, and is encapsulated as Big Dipper short message and is launched by Big Dipper short message Anneta module, propagates to the Big Dipper number of specifying.
The described search and rescue localization method based on AIS and Beidou satellite navigation system, also comprise S4 after step s 3, Big Dipper short message transceiver module receives Big Dipper short message, the conversion of radiofrequency signal to digital signal is carried out to this Big Dipper short message, and the Big Dipper short message being converted to digital signal is sent to core processing module; The Big Dipper short message that this receives comprises power control information and detecting information to searching and rescuing locating terminal, for testing described search and rescue locating terminal.
In sum, search and rescue locating terminal based on AIS and Beidou satellite navigation system provided by the present invention and method, it adopts at AIS channels broadcast, and propagate parallel mode by Big Dipper short message, locating information can be reported to the police together with on the AIS receiver being delivered to periphery boats and ships of identity information Active and Real-time, also can locating information and the long-range Big Dipper number of specifying that passes to of identity information be reported to the police simultaneously, achieve distress alerting and location search and rescue mode that long-range and short range combines, improve search efficiency greatly; And search and rescue locating terminal provided by the present invention is beneficial to individual and carries, convenient and safe, accurately and reliably.
Accompanying drawing explanation
Fig. 1 is the structural representation of the search and rescue locating terminal based on AIS and Beidou satellite navigation system in the present invention.
Embodiment
Below in conjunction with Fig. 1, describe a preferred embodiment of the present invention in detail.
As shown in Figure 1, be the structural representation of the search and rescue locating terminal based on AIS and Beidou satellite navigation system provided by the invention, this search and rescue locating terminal comprises: core processing module 1, and it is for controlling the work of described search and rescue locating terminal; GNSS(GLONASS (Global Navigation Satellite System), Global Navigation Satellite System) module 2, it is connected with described core processing module 1, for being positioned the current residing particular location of described search and rescue locating terminal by satellite, and output packet contains the locator data of latitude and longitude information to described core processing module 1; AIS transmitter module 3, it is connected with described core processing module 1, for receiving the locator data sent by core processing module 1, according to AIS standard-required, the conversion of digital signal to radiofrequency signal is carried out to this locator data, and the locator data being converted to radiofrequency signal is encapsulated as standard A IS message launches, at AIS channels broadcast; Big Dipper short message transceiver module 4, it is connected with described core processing module 1, for receiving the locator data sent by core processing module 1, the conversion of digital signal to radiofrequency signal is carried out to this locator data, and the locator data being converted to radiofrequency signal is encapsulated as Big Dipper short message launches, propagate to the Big Dipper number of specifying; Meanwhile, this Big Dipper short message transceiver module 4, for receiving Big Dipper short message, carries out the conversion of radiofrequency signal to digital signal to this Big Dipper short message, and the Big Dipper short message being converted to digital signal is sent to core processing module 1; The Big Dipper short message that this receives comprises the content such as power control information, detecting information to searching and rescuing locating terminal, can test described search and rescue locating terminal.
Described GNSS module 2 adopts ripe satellite navigation locating module, 6M series as Ublox waits realization, it is being positioned searching and rescuing the current residing particular location of locating terminal by satellite, while obtaining the latitude and longitude information of current location, also record temporal information when obtaining this latitude and longitude information in the lump, and described temporal information is sent to core processing module 1 together with latitude and longitude information as locator data.
Described AIS transmitter module 3 adopts the AIS transmitter of standard to realize, as the AIS transmitter be made up of AIS processor CMX7045 and the common power amplifier of MCL company, HDLC(High-Level Data Link Control is carried out successively to receiving the locator data sent by core processing module 1, High-Level Data Link Control) coding, NRZI(overturns non-return-to-zero, Non-Return-to-Zero Inverted) conversion, GMSK(GMSK (Guassian Minimum Shift Keying), Gaussian Filtered Minimum Shift Keying) modulate and be amplified to 1W, to realize the conversion of digital signal to radiofrequency signal.
Described AIS transmitter module 3 encapsulates in the standard A IS message formed, except comprise there is latitude and longitude information and temporal information locator data except, also comprise the identity identification information of the search and rescue locating terminal being sent to AIS transmitter module 3 by core processing module 1.
The module that it is TM0510 that described Big Dipper short message transceiver module 4 adopts as model realizes, in the Big Dipper short message that its encapsulation is formed, except comprise there is latitude and longitude information and temporal information locator data except, also comprise the identity identification information of the search and rescue locating terminal being sent to Big Dipper short message transceiver module 4 by core processing module 1.
Described core processing module 1 can adopt chip microcontroller, and as the ARM series monolithic STM32F103 of ST company, it is for controlling the work of other modules of searching and rescuing locating terminal; Specifically comprise: control GNSS module 2 opens duty, and solution frame is carried out to the locator data that this GNSS module 2 exports; Framing is carried out to the locator data that will be sent to AIS transmitter module 3 and Big Dipper short message transceiver module 4; And solution frame is carried out to the Big Dipper short message that Big Dipper short message transceiver module 4 exports.
Search and rescue locating terminal based on AIS and Beidou satellite navigation system provided by the present invention, also comprise Anneta module 5, it is connected with described GNSS module 2, AIS transmitter module 3 and Big Dipper short message transceiver module 4 respectively.
Further, described Anneta module 5 comprises: GNSS Anneta module, and can adopt as GPS/ Big Dipper three-frequency antenna realizes, it is connected with described GNSS module 2, receives the current locator data of the search and rescue locating terminal that obtained by satellite for completing GNSS module 2; AIS Anneta module, can adopt as realizations such as small-sized VHF helical antennas, it is connected with described AIS transmitter module 3, for completing the transmitting of AIS transmitter module 3 pairs of standard A IS message; Big Dipper short message Anneta module, can adopt as Big Dipper short message S/L dual-band antenna realizes, it is connected with described Big Dipper short message transceiver module 4, for completing the transmitting and receiving of Big Dipper short message transceiver module 4 pairs of Big Dipper short messages.
Search and rescue locating terminal based on AIS and Beidou satellite navigation system provided by the present invention, also comprises power supply 6, and it provides working power for searching and rescuing locating terminal; Power management module 7, it is connected with described core processing module 1, GNSS module 2, AIS transmitter module 3, Big Dipper short message transceiver module 4 and power supply 6 respectively, for carrying out voltage transformation for each different module above-mentioned respectively, controlling power supply output and control power source charges.
Described power supply 6 adopts lithium battery or dry cell to realize, and provides the working power of long voyage for searching and rescuing locating terminal, and making to search and rescue locating terminal can be convenient for carrying.
Described power management module 7 comprises: charge management module, special charging chip such as BQ24450 can be used to realize, and it is connected with described power supply 6, for monitoring the state of charge of current power 6, carry out charging to power supply 6 to control, and monitor the charged state of current power 6, power transfer module, multi-disc DC-DC chip can be adopted as LM20242 etc., or LDO chip such as Sipex3819 realizes, its respectively with described core processing module 1, GNSS module 2, AIS transmitter module 3, Big Dipper short message transceiver module 4 is connected with power supply 6, operating voltage for being exported by power supply 6 changes into core processing module 1 respectively, GNSS module 2, AIS transmitter module 3 and the respective required operating voltage of Big Dipper short message transceiver module 4 are independently to provide the working power of each module, and realize respectively GNSS module 2 under the control of core processing module 1, independently-powered and the power-off of AIS transmitter module 3 and Big Dipper short message transceiver module 4.
In the present embodiment, the state of charge of charge management module to power supply 6 of power management module 7 is monitored, when the electricity of power supply 6 is not enough, control charger to charge to power supply 6, and the charged state of power supply 6 (be full of, fill, overheated etc.) is monitored, and output state indicator signal in time; Such as when the electricity of power supply 6 is full of, stop charging, again such as when the phenomenon such as overheated occurs power supply 6 in charging process, suspend charging in time, continue after its cooling.The voltage that power supply 6 exports then is converted to the voltage of three road 3.3V and the voltage of a road 5V by the power transfer module of power management module 7 respectively, provides the working power of core processing module 1, GNSS module 2, AIS transmitter module 3 and Big Dipper short message transceiver module 4 respectively; And the independently-powered and power-off realized respectively under the control of core processing module 1 GNSS module 2, AIS transmitter module 3 and Big Dipper short message transceiver module 4; Such as, power transfer module under the control of core processing module 1, according to working time slot, its corresponding working power is provided to the current module worked, then power down process is done to the current module without the need to work, thus the electrical source consumption of searching and rescuing locating terminal can be saved, extend its working time.
The present invention also provides a kind of search and rescue localization method based on AIS and Beidou satellite navigation system, and the search and rescue locating terminal described in the method uses realizes, and specifically comprises following steps:
S1, after personnel are in danger on the water, open the search and rescue locating terminal carried with, provide operating voltage by power supply 6;
S2, core processing module 1 control GNSS module 2 are started working, this GNSS module 2 utilizes GNSS Anneta module to be positioned the current residing particular location of described search and rescue locating terminal by satellite, and output packet contains the locator data of latitude and longitude information and temporal information when obtaining this latitude and longitude information to described core processing module 1;
The identity identification information of described locator data and search and rescue locating terminal is sent to AIS transmitter module 3 and Big Dipper short message transceiver module 4 by S3, core processing module 1 simultaneously; This AIS transmitter module 3, according to AIS standard-required, carries out the conversion of digital signal to radiofrequency signal to this locator data and identity identification information, and is encapsulated as standard A IS message and is launched by AIS Anneta module, at AIS channels broadcast; This Big Dipper short message transceiver module 4 carries out the conversion of digital signal to radiofrequency signal to this locator data and identity identification information, and is encapsulated as Big Dipper short message and is launched by Big Dipper short message Anneta module, propagates to the Big Dipper number of specifying.
The described search and rescue localization method based on AIS and Beidou satellite navigation system, also comprise S4 after step s 3, Big Dipper short message transceiver module 4 receives Big Dipper short message, the conversion of radiofrequency signal to digital signal is carried out to this Big Dipper short message, and the Big Dipper short message being converted to digital signal is sent to core processing module 1; The Big Dipper short message that this receives comprises the content such as power control information, detecting information to searching and rescuing locating terminal, can test described search and rescue locating terminal.
In sum, search and rescue locating terminal based on AIS and Beidou satellite navigation system provided by the present invention and method, it adopts at AIS channels broadcast, and propagate parallel mode by Big Dipper short message, locating information can be reported to the police together with on the AIS receiver being delivered to periphery boats and ships of identity information Active and Real-time, also can locating information and the long-range Big Dipper number of specifying that passes to of identity information be reported to the police simultaneously, achieve distress alerting and location search and rescue mode that long-range and short range combines, improve search efficiency greatly; And search and rescue locating terminal provided by the present invention is beneficial to individual and carries, convenient and safe, accurately and reliably.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1., based on a search and rescue locating terminal for AIS and Beidou satellite navigation system, it is characterized in that, comprise:
Core processing module (1), it is for controlling the work of described search and rescue locating terminal;
GNSS module (2), it is connected with described core processing module (1), for being positioned the current residing particular location of described search and rescue locating terminal by satellite, and output packet contains the locator data of latitude and longitude information to described core processing module (1);
AIS transmitter module (3), it is connected with described core processing module (1), for receiving the locator data sent by core processing module (1), according to AIS standard-required, the conversion of digital signal to radiofrequency signal is carried out to this locator data, and the locator data being converted to radiofrequency signal is encapsulated as standard A IS message launches, at AIS channels broadcast;
Big Dipper short message transceiver module (4), it is connected with described core processing module (1), for receiving the locator data sent by core processing module (1), the conversion of digital signal to radiofrequency signal is carried out to this locator data, and the locator data being converted to radiofrequency signal is encapsulated as Big Dipper short message launches, propagate to the Big Dipper number of specifying; This Big Dipper short message transceiver module (4), also for receiving Big Dipper short message, carries out the conversion of radiofrequency signal to digital signal to this Big Dipper short message, and the Big Dipper short message being converted to digital signal is sent to core processing module (1); The Big Dipper short message that this receives comprises power control information and detecting information to searching and rescuing locating terminal, for testing described search and rescue locating terminal.
2. as claimed in claim 1 based on the search and rescue locating terminal of AIS and Beidou satellite navigation system, it is characterized in that, described GNSS module (2) is being positioned searching and rescuing the current residing particular location of locating terminal by satellite, while obtaining the latitude and longitude information of current location, also record temporal information when obtaining this latitude and longitude information in the lump, and described temporal information is sent to core processing module (1) together with latitude and longitude information as locator data.
3. as claimed in claim 2 based on the search and rescue locating terminal of AIS and Beidou satellite navigation system, it is characterized in that, described AIS transmitter module (3) is encoded successively to receiving the locator data sent by core processing module (1), convert, modulates and is amplified, and realizes the conversion of digital signal to radiofrequency signal.
4. as claimed in claim 3 based on the search and rescue locating terminal of AIS and Beidou satellite navigation system, it is characterized in that, in the standard A IS message that described AIS transmitter module (3) encapsulation is formed, also comprise the identity identification information of the search and rescue locating terminal being sent to AIS transmitter module (3) by core processing module (1);
In the Big Dipper short message that described Big Dipper short message transceiver module (4) encapsulation is formed, also comprise the identity identification information of the search and rescue locating terminal being sent to Big Dipper short message transceiver module (4) by core processing module (1).
5. as claimed in claim 4 based on the search and rescue locating terminal of AIS and Beidou satellite navigation system, it is characterized in that, described core processing module (1) is for controlling the modules work of searching and rescuing locating terminal, comprise: control GNSS module (2) opens duty, and carries out solution frame to the locator data that this GNSS module (2) exports; Framing is carried out to the locator data that will be sent to AIS transmitter module (3) and Big Dipper short message transceiver module (4); And solution frame is carried out to the Big Dipper short message that Big Dipper short message transceiver module (4) exports.
6., as claimed in claim 5 based on the search and rescue locating terminal of AIS and Beidou satellite navigation system, it is characterized in that, also comprise Anneta module (5), this Anneta module (5) comprises:
GNSS Anneta module, it is connected with described GNSS module (2), receives the current locator data of the search and rescue locating terminal that obtained by satellite for completing GNSS module (2);
AIS Anneta module, it is connected with described AIS transmitter module (3), for completing AIS transmitter module (3) to the transmitting of standard A IS message;
Big Dipper short message Anneta module, it is connected with described Big Dipper short message transceiver module (4), for completing Big Dipper short message transceiver module (4) to the transmitting and receiving of Big Dipper short message.
7., as claimed in claim 1 based on the search and rescue locating terminal of AIS and Beidou satellite navigation system, it is characterized in that, also comprise:
Power supply (6), it provides working power for searching and rescuing locating terminal;
Power management module (7), it is connected with described core processing module (1), GNSS module (2), AIS transmitter module (3), Big Dipper short message transceiver module (4) and power supply (6) respectively, for carrying out voltage transformation for each different module respectively, controlling power supply output and control power source charges.
8., as claimed in claim 7 based on the search and rescue locating terminal of AIS and Beidou satellite navigation system, it is characterized in that, described power management module (7) comprises:
Charge management module, it is connected with described power supply (6), for monitoring the state of charge of current power (6), carrying out charging and controlling, and monitor the charged state of current power (6) to power supply (6);
Power transfer module, its respectively with described core processing module (1), GNSS module (2), AIS transmitter module (3), Big Dipper short message transceiver module (4) is connected with power supply (6), operating voltage for being exported by power supply (6) changes into core processing module (1) respectively, GNSS module (2), AIS transmitter module (3) and the respective required operating voltage of Big Dipper short message transceiver module (4) are independently to provide the working power of each module, and realize respectively under the control of core processing module (1) GNSS module (2), independently-powered and the power-off of AIS transmitter module (3) and Big Dipper short message transceiver module (4).
9. based on a search and rescue localization method for AIS and Beidou satellite navigation system, it is characterized in that, use the search and rescue locating terminal realization as claim 1-8 according to any one of, specifically comprise following steps:
S1, after personnel are in danger on the water, open the search and rescue locating terminal carried with, provide operating voltage by power supply (6);
S2, core processing module (1) control GNSS module (2) start working, this GNSS module (2) utilizes GNSS Anneta module to be positioned the current residing particular location of described search and rescue locating terminal by satellite, and output packet contains the locator data of latitude and longitude information and temporal information when obtaining this latitude and longitude information to described core processing module (1);
The identity identification information of described locator data and search and rescue locating terminal is sent to AIS transmitter module (3) and Big Dipper short message transceiver module (4) by S3, core processing module (1) simultaneously; This AIS transmitter module (3), according to AIS standard-required, carries out the conversion of digital signal to radiofrequency signal to this locator data and identity identification information, and is encapsulated as standard A IS message and is launched by AIS Anneta module, at AIS channels broadcast; This Big Dipper short message transceiver module (4) carries out the conversion of digital signal to radiofrequency signal to this locator data and identity identification information, and is encapsulated as Big Dipper short message and is launched by Big Dipper short message Anneta module, propagates to the Big Dipper number of specifying.
10. as claimed in claim 9 based on the search and rescue localization method of AIS and Beidou satellite navigation system, it is characterized in that, also comprise S4 after step s 3, Big Dipper short message transceiver module (4) receives Big Dipper short message, the conversion of radiofrequency signal to digital signal is carried out to this Big Dipper short message, and the Big Dipper short message being converted to digital signal is sent to core processing module (1); The Big Dipper short message that this receives comprises power control information and detecting information to searching and rescuing locating terminal, for testing described search and rescue locating terminal.
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