CN205921752U - Temperature scale is shown in AIS maritime search and rescue - Google Patents
Temperature scale is shown in AIS maritime search and rescue Download PDFInfo
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- CN205921752U CN205921752U CN201620966226.1U CN201620966226U CN205921752U CN 205921752 U CN205921752 U CN 205921752U CN 201620966226 U CN201620966226 U CN 201620966226U CN 205921752 U CN205921752 U CN 205921752U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model discloses a temperature scale is shown in AIS maritime search and rescue, including GPS radio frequency front end, GPS receiving module, AIS radio frequency front end, AIS receiving module, AIS emission module, baseband information processing module and power module, GPS receiving module connects between GPS radio frequency front end and baseband information processing module, connects AIS receiving module and AIS emission module respectively between AIS radio frequency front end and the baseband information processing module, and power module also connects on baseband information processing module. The temperature scale is shown and makes regular check on the electric quantity of surplus battery that the operating condition of dynamic adjustment GPS module and AIS emission module's transmit power and transmission interval time are come to the signal power circumstances of AIS equipment around the basis simultaneously to these search and rescue to operating time and the emission efficiency who shows the temperature scale is searched for andd rescue in furthest's improvement. This searches for ands rescue and to show that the temperature scale still contains solar cell panel, charges for the battery through photovoltaic effect, and the operating time who shows the temperature scale is searched for andd rescue in the extension, improves and searches for ands rescue the effect.
Description
Technical field
This utility model is related to overocean communications apparatus field, specifically a kind of ais maritime search and rescue position indicating mark.
Background technology
In recent years, with the emergence developing rapidly with marine economy of ship science and technology, the status of maritime traffic transport is increasingly
Significantly, world shipping market has obtained unprecedented expansion and development.The fast development of world shipping industry is bringing huge warp
While Ji interests, maritime traffic situation is also made to become to become increasingly complex.Collide, hit a submerged reef, stranded, sinking etc. cause the great person
The Maritime Traffic Accident of injures and deaths still occurs repeatedly.Life is priceless, and maritime search and rescue work has a very important role.
Ais system is a kind of effective Collision Avoidance At Sea, navigation, navaid security system.According to International Maritime Organization (imo)
Compulsive requirement, all more than 300 tons International Voyage Ships and more than 500 tons non-International Voyage Ships have all been mounted with present
Ais equipment.Although current spitkit is not forced to install this equipment, because ais is from report position characteristic Manufacturing cost
Be gradually lowered, increasing small boat is also gradually mounted with ais equipment.
Ais maritime search and rescue position indicating mark (ais-mob) is a kind of search and rescue that may be mounted on life jacket or carry with
Show a warning device, this equipment can be by manually starting or overboard rear automatic, in the dedicated channel of ais channel or assignment
Upper transmission individual position and warning message.This information can be received by a range of all ais terminal units and base station equipment
And show.Be equipped with ais search and rescue position indicating mark personnel once overboard, individual position and warning message will by the ship of surrounding or
Person base station obtains.Rescue worker can search and rescue to persons falling in water, raising is searched at once according to the position of emergency rescue position indicating mark
Rescue efficiency.
Traditional ais-mob generally comprises battery, activate switch, gps localizer, microcontroller, ais controller and modulation
The parts such as device, power amplifier, ais transmitting antenna.Its operation principle is: is on manually or after meeting water switching, micro-control
Device processed receives the positional information that gps localizer sends, this information subsequently by ais controller carry out data packet format conversion,
Manipulator is modulated coding, power amplifier carries out signal amplification, sends individual position and report finally by ais transmitting antenna
Alarming information.During this, gps localizer and power amplifier are the critical pieces expending battery power.If fallen in ais-mob
When not having the receiving device that can receive ais signal in certain distance after water, the transmitting of ais-mob just belongs to invalid transmitting, only
The limited electric energy of ais-mob battery can be expended in vain, this just directly results in and shortens the time that can succour overboard distress personnel, shadow
Ring search and rescue effect.
Relatively advanced technology is a kind of search and rescue position indicating mark proposing as Application No. 2015103078144.This practicality is new
Position indicating mark described in type is sent to decide whether or is sent with adjustable interval time according to whether receiving ais signal around
Ais signal, because the power consumption of ais reception device is less than the power consumption of ais discharger, it is to avoid receives because surrounding does not have ais
Equipment and ineffectually send the search and rescue position indicating mark power consumption that ais signal causes.But such position indicating mark has a following defect:
Whether to receive whether 9 standards mmsi or standard imo have ais transceiver as around judge
Standard is very limited for the current marine situation of China.A lot of small boat (especially coastal waters freighter, fishing boats etc.
Do not need to enter the various ships in high sea) although having ais transmitting and receive capabilities, not in imo(International Maritime group
Knit) registration, so inreal mmsi or No. imo.So can be missed with this for standard merely much potentially rescuing
Help chance.This is not best practice at the crucial moment that life-and-death matter.
The ais signal transmission power of such position indicating mark is certain, and the few place of ship around, more should increase
Big transmission signal power, improves the coverage of signal, thus improving the probability that can be found by other ais equipment.
The gps localizer of such position indicating mark is in continuous duty.And can consume under gps localizer continuous duty
12% to 18% energy content of battery.The search and rescue position indicating mark of window(s) of opportunity time of being rescued just is nearly identical to for battery working time
Say, if the working time of position indicating mark can be improved by adjusting the dormancy time of gps localizer, extend and be sent out crying for help
The time of signal is it is possible to improve the success rate searched and rescued.Generally the moving range after man overboard is not in non-in a short time
Often big change, thus search and rescue position indicating mark in the case that battery electric quantity is limited it is not necessary that holding position information in real time more
Newly, the positional information that gps localizer collects for the last time can be multiplexed in a short time.
Utility model content
The purpose of this utility model is to provide a kind of ais maritime search and rescue position indicating mark, to solve to carry in above-mentioned background technology
The problem going out.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of ais maritime search and rescue position indicating mark, receives including gps radio-frequency front-end, gps receiver module, ais radio-frequency front-end, ais
Module, ais transmitter module, base-band information processing module and power module, described gps radio-frequency front-end external gps antenna, described
Ais radio-frequency front-end external ais antenna, described gps receiver module be connected to gps radio-frequency front-end and base-band information processing module it
Between, connect ais receiver module and ais transmitter module between described ais radio-frequency front-end and base-band information processing module respectively, described
Power module is also connected in base-band information processing module；Described power module includes solar panels, rechargeable battery and power supply
Management and monitoring unit, described rechargeable battery connects solar panels, power management and monitoring unit, power management and prison respectively
Control unit connects base-band information processing module.
As further program of the utility model: described gps RF front-end module includes low-noise amplifier and band logical
Wave filter, described band filter and low-noise amplifier connect, and described low-noise amplifier connects external gps antenna；Described
Gps receiver module includes low-converter, intermediate frequency amplifier and analog-digital converter, low-converter, intermediate frequency amplifier and analog digital conversion
Device is sequentially connected, and described low-converter connects band filter, and described analog-digital converter connects base-band information processing module.
As further program of the utility model: described ais radio-frequency front-end includes low pass filter, transmitting-receiving conversion is opened
Pass, low-noise amplifier and shunt, described low pass filter connects external ais antenna, and described transmit-receive switch is connected to
Between low pass filter and low-noise amplifier, described transmit-receive switch is also associated with the power-adjustable of ais transmitter module
Amplifier, described shunt is connected between low-noise amplifier and ais receiver module.
As further program of the utility model: described ais receiver module includes the receiving channel of two-way independence, every road
Receiving channel all includes SAW filter, low-converter, intermediate-frequency filter and analog-digital converter, and described SAW filter connects
The shunt of ais radio-frequency front-end, described SAW filter, low-converter, intermediate-frequency filter, analog-digital converter are sequentially connected, institute
State analog-digital converter and connect base-band information processing module；
As further program of the utility model: described ais transmitter module include the digital to analog converter that is sequentially connected and
Adjustable power amplifier, described digital to analog converter connects base-band information processing module and connects, and described adjustable power amplifier connects
Transmit-receive switch.
A kind of described ais maritime search and rescue position indicating mark show method for position, specifically comprise the following steps that
Step 1: search and rescue position indicating mark and start, start working, the initial value of the emission duration t of setting ais transmitter module
For t1, the initial value of transmission power p is p1, and the initial value starting a interval time of gps module is 0, and that is, gps continuously works, no
Enter resting state, the initial value of setting battery electric quantity assay intervals time b is b1；
Step 2: judge whether battery dump energy is higher than the first percentage ratio a%；If so, the process of execution step 3；Otherwise
The process of execution step 4；
Step 3:gps module continuously works, and persistently obtains current location information, sends to base-band information processing module, base
Information processing module obtains positional information, subsequently enters step 9；
Step 4: judge whether battery dump energy is higher than the second percentage ratio b%；If so, the process of execution step 5；Otherwise
The process of execution step 10；
Step 5:gps module continuously works, and persistently obtains current location information, sends to base-band information processing module, base
Information processing module obtains positional information, subsequently enters step 6；
Step 6:ais receiver module detects the rssi value in two receiving channels of ais respectively, subsequently enters step 7；
Step 7: judge whether the rssi of two ais receiving channels is higher than all cdbm；If so, the process of execution step 9；No
Then execution step 8；
Step 8: transmit power p of setting ais transmitter module is p2, subsequently enters step 9；
Step 9:ais sending module to send ais distress signals with transmit power at set time intervals, every b1
After time, enter step 14；
Step 10:gps module obtains current location information, sends to base-band information processing module, subsequently enters step 11；
Startup a interval time of step 11:gps module is arranged to a1, gps module subsequently into resting state, with laggard
Enter step 12；
The interval of step 12:ais sending module sends time t and is arranged to t2, subsequently enters step 13；
Step 13: base-band information processing module obtains positional information, preserves this positional information simultaneously；It is in gps module
In the resting state stage, the last gps positional information obtaining will be always as current location information；Gps module is in dormancy a1
Time restart after will more new location information, subsequently enter step 6；
Step 14: again detect one-shot battery electricity, subsequently enter step 2；
As further program of the utility model: in above-mentioned steps, the first percentage ratio a% is more than the second percentage ratio b%,
Transmit power p1 of ais transmitter module is less than p2, and the emission duration t1 of ais transmitter module is less than t2.
Compared with prior art, the beneficial effects of the utility model are:
This utility model passes through to install gps receiver module, ais reception and transmitter module, base band letter in searching and rescuing position indicating mark
Breath processing module, power module, can be under the control of base-band information processing module, according to battery dump energy and surrounding
The power of ais discharger signal dynamically to adjust and to search and rescue watt level and the interval that position indicating mark is sent out ais distress signal
The transmission time, thus extending the working time searching and rescuing position indicating mark, improve search efficiency.
This utility model dynamically adjusts the working condition of gps receiver module according to battery dump energy, receives mould in gps
Block in a dormant state when using its last positional information obtaining as the currently active information, for ais transmitter module
The emergency positional information sending.Generally the moving range after man overboard is not in very big change in a short time,
So the positional information that this scheme provides during actual search and rescue uses enough.And be to prolong by the good effect that this scheme is brought
Grow the working time searching and rescuing position indicating mark, improve search efficiency.
This utility model judges having of around ais reception device by the rssi value monitoring ais signal around position indicating mark
No or far and near.Due to having in Chinese inland river, inland sea and coastal waters, a lot of ships are not strict to be applied for and using No. imo and mmsi
Number, so the method that this utility model uses is more suitable for national conditions, optimizes actual monitoring effect, improve search efficiency.
Brief description
Fig. 1 is the structural representation that utility model searches and rescues position indicating mark system.
Fig. 2 is the gps radio-frequency front-end of Fig. 1 and the structural representation of gps receiver module.
Fig. 3 is the structural representation of the ais radio-frequency front-end, ais receiver module and ais sending module of Fig. 1.
Fig. 4 shows the schematic flow sheet of method for position for this utility model.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
Refer to Fig. 1～3, in this utility model embodiment, a kind of ais maritime search and rescue position indicating mark, position is shown in ais maritime search and rescue
Mark includes gps radio-frequency front-end 1, gps receiver module 2, ais radio-frequency front-end 3, ais receiver module 4, ais transmitter module 5, base band letter
Breath processing module 6 and power module 7.
As shown in figure 1, the external gps antenna of gps radio-frequency front-end 1, receive radiofrequency signal, and the radiofrequency signal after processing is sent out
Deliver to the process that gps receiver module 2 carries out next step.
As shown in figure 1, gps receiver module 2 and gps radio-frequency front-end 1 connect, gps receiver module 2 is to gps radio-frequency front-end 1
After the radiofrequency signal brought carries out down coversion, signal amplification and analog digital conversion, signal is sent into base-band information processing module 6,
It is digitized processing.
As shown in figure 1, the external ais antenna of ais radio-frequency front-end 3, it is used for sending and receiving radiofrequency signal.The radio frequency receiving
Signal through internal shunt, is divided into 2 tunnels and is respectively fed to 2 passages of ais receiver module 4 and carry out after completing front-end processing
The process of next step.Ais radio-frequency front-end 3 includes a transmit-receive switch for time division multiplex, processes mould according to base-band information
The instruction of block 6 carries out rf signal reception and the conversion sending.Ais antenna is respectively completed connecing of radiofrequency signal in different time slots
Receive and emission function.
As shown in figure 1, ais receiver module 4 and ais radio-frequency front-end 3 connect, ais receiver module 4 is to from ais radio-frequency front-end 3
The radiofrequency signal sending over carries out, filters, merge 2 road signals after down coversion, intermediate frequency filtering and analog digital conversion and send into base band
Message processing module 6, carries out the digitized processing of next step.
As shown in figure 1, ais transmitter module 5 and base-band information processing module 6 connect, receive base-band information processing module 6
The information sent, and the analogue signal after processing is sent to ais radio-frequency front-end 3.Ais radio-frequency front-end 3 is sent by transmit-receive switch
To ais antenna, thus completing the transmitting of radiofrequency signal.
As shown in figure 1, base-band information processing module 6 and gps receiver module 2, ais receiver module 4, ais sending module 5,
Power module 7 connects.
Base-band information processing module 6 completes following function:
(1) receive the digital signal from gps receiver module 2, complete the parsing of positional information.
(2) receive the battery capacity information from power module 7, thus judging whether that needs are according to battery remaining power
Extend the working time of position indicating mark and extend transmission of interrupted time of ais transmitter module 5 and receive mould the need of setting gps
The interrupted work of block 2.When battery electric quantity is more than the first percentage ratio, show the still remaining abundance electricity of battery, now ais transmitting
Module 5 was spaced to send positional information according to the first transmission power level and the very first time.When battery electric quantity is less than the first percentage ratio
And when being more than the second percentage ratio, show that battery electric quantity is in scope placed in the middle, now base-band information processing module 6 connects to ais
Receive the intensity of rssi(receipt signal that module 5 detect on ais frequency to indicate) value and initial set value carry out size and compare.When
When the former is less than initial set value, represents and do not have around position indicating mark or have ais reception device just now apart from far ground.ais
Transmitter module 5 adopts the second transmission power transmitting positional information, improves the chance that signal is captured by other ais reception devices.No
Then according to first performance number setting ais transmitter module 5.First transmission power level is less than the second transmission power level.Battery electric quantity
First percentage ratio is more than the second percentage ratio.When battery capacity is less than the second percent capacity, show battery dump energy
Less, it would be preferable to support the working time searching and rescuing position indicating mark is few.During now base-band information processing module configuration gps interval work
Between, and with arranging gps module entrance work or resting state according to this gps interval working time, thus reduce disappearing of gps
Power consumption.Base-band information processing module 6 will configure the interval time of ais information transmission, fall using the second time interval simultaneously
The consumption electricity of low ais sending module 5, extends the working time searching and rescuing position indicating mark.The very first time, interval was less than between the second time
Every.
(3) receive the digital signal from ais receiver module 4, complete the signal detection to ais signal frequency point, calculate two
The intensity instruction of the rssi(receipt signal of individual frequency) value.Compared according to testing result and the initial value setting of search and rescue position indicating mark
Relatively, thus setting the transmit power of ais sending module 5.Set when the rssi value obtaining from ais receiver module 4 is less than position indicating mark
During value, represent and do not have around position indicating mark or have ais reception device just now apart from far ground.Now allow in battery capacity
In the range of, the transmit power of setting ais sending module 5 to launch positional information for the second performance number, improves signal by other ais
The chance of reception device capture.Otherwise ais transmitter module 5 is set according to the first performance number.First performance number is less than the second power
Value.
As shown in figure 1, power module 7 is powered for whole system, there is electric quantity monitoring and defencive function simultaneously.Power supply mould
Block 7 includes: solar panels 71, rechargeable battery 72, power management and monitoring unit 73.Solar panels 71 and rechargeable battery 72
Connecting, completing luminous energy to the conversion of electric energy using photovoltaic effect, thus being charged to rechargeable battery 72.Rechargeable battery 72
There is provided electric energy for searching and rescuing position indicating mark, there is recharge function.Power management and monitoring unit 73 are connected with rechargeable battery 72,
Realize voltage monitoring and real-time voltage is sent to base-band information processing module 6.Base-band information processing module 6 is thus according to can fill
The voltage levvl of battery 72 determines dump energy, and then determines different mode of operations so that search and rescue position indicating mark reaches most preferably
Working condition.Power management and monitoring unit 73 also realize overcurrent to rechargeable battery 72, over-voltage protection function, prolong
The working life of long rechargeable battery 72.
As shown in Fig. 2 gps radio-frequency front-end 1 is connected with gps receiver module 2, complete the radio frequency receiving from gps antenna
Signal is converted into the complete procedure of digital baseband signal.Gps radio-frequency front-end 1 module includes low-noise amplifier 11, bandpass filtering
Device 12.Low-noise amplifier 11 receives the radiofrequency signal from antenna, and completes front end signal enlarging function.Band filter 12
Connect with low-noise amplifier 11, realize the filtering to front end signal, filter out noise it is allowed to the useful signal of gps frequency range leads to
Cross.
As shown in Fig. 2 gps receiver module 2 includes: low-converter 21, intermediate frequency amplifier 22, analog-digital converter 23.Lower change
Frequency device 21 receives the radiofrequency signal from gps frequency range, and after mixing, output is less than the intermediate-freuqncy signal of gps frequency range.This intermediate frequency is believed
Number through intermediate frequency amplifier 22 complete signal amplify, then pass through analog-digital converter 23 complete analogue signal arrive digital signal turn
Change.This digital signal will be transfused to base-band information processing module 6, carry out the Digital Signal Processing of next step.Low-converter 21 will
It is used 4092mhz as IF-FRE, prioritizing selection is operated in this frequency range.
As shown in figure 3, ais radio-frequency front-end 3 connects with ais receiver module 4, ais transmitter module 5 respectively.Ais radio-frequency front-end
3 internal one transmit-receive switch 32 of inclusion are used for time division multiplex, and the instruction according to base-band information processing module 6 carries out radio frequency letter
Number receive and send conversion.Ais radio-frequency front-end 3 includes: low pass filter 31, transmit-receive switch 32, low-noise amplifier 33, point
Road device 34.Low pass filter 31 and ais antenna connect.Low pass filter 31, when ais antenna is used as receive capabilities, docks
The wireless signal receiving carries out High frequency filter.Low pass filter 31 ais antenna be used as emission function when, to from ais
The radiofrequency signal of transmitter module 5 carries out low-pass filtering, is subsequently sent to ais antenna, completes signal emission function.Transmit-receive switch 32 1
End is connected by low pass filter 31 and antenna, and what in addition 2 ends connected low-noise amplifier 33 and ais transmitter module 5 respectively can
Adjustable power amplifier 51.When position indicating mark work, transmit-receive switch 32 is received according to the instruction of base-band information processing module 6
Switching with sendaisle.Low-noise amplifier 33 and transmit-receive switch 32 connect, when ais antenna is used as receive capabilities,
Low-noise amplifier 33 is amplified for by the radiofrequency signal of transmit-receive switch 32, is subsequently sent to shunt 34.Shunt 34
Connect with low-noise amplifier 33, what the radiofrequency signal that low-noise amplifier 33 is sent was impartial is divided into 2 tunnels, send into ais and receive
2 passages of module 4.
Ais receiver module 4 includes the receiving channel of 2 tunnel independences, and each passage includes SAW filter 411, low-converter
412nd, intermediate-frequency filter 413, analog-digital converter 414, works respectively on 2 frequencies of ais.With passage 141 for row, sound table is filtered
Ripple device 411 connects the shunt 34 of ais radio-frequency front-end 3, receives radiofrequency signal, and signal completes radio frequency letter through low-converter 412
Number to intermediate-freuqncy signal conversion, subsequent intermediate-freuqncy signal is imported into intermediate-frequency filter 413 and carries out bandpass filtering.Analog-digital converter
414 and intermediate-frequency filter 413 connect, complete from intermediate-frequency filter 413 send intermediate-freuqncy signal digitized processing.Analog-digital converter
414 digital signals sending out will be transfused to base-band information processing module 6, carry out the Digital Signal Processing of next step.In the same manner,
Passage 2 completes the processing procedure of the radiofrequency signal on an other road.
Ais transmitter module 5 includes digital to analog converter 52 and adjustable power amplifier 51.Digital to analog converter 52 and base-band information
Processing module 6 connects.When search and rescue position indicating mark is operated in emission state, base-band information processing module 6 output needs transmission
Information, this information carries out digital signal to the conversion of analogue signal by digital to analog converter 52.Adjustable power amplifier 51 sum
Weighted-voltage D/A converter 52 connects, and carries out power amplification to the analogue signal from digital to analog converter 52, is then output to ais radio-frequency front-end
3, ais antenna is sent to by transmit-receive switch 32, completes the transmitting of radiofrequency signal.
Fig. 4 is the flow chart that the present embodiment carries out showing the method for position, and it is rapid that the flow process of this embodiment includes following steps:
Step 1: search and rescue position indicating mark and start, start working.The initial value of the emission duration t of setting ais transmitter module
For t1, the initial value of transmission power p is p1；The initial value starting a interval time of gps module is 0, and that is, gps continuously works, no
Enter resting state, the initial value of setting battery electric quantity assay intervals time b is b1；
Step 2: judge whether battery dump energy is higher than the first percentage ratio a%；If so, the process of execution step 3；Otherwise
The process of execution step 4；
Step 3:gps module continuously works, and persistently obtains current location information, sends to base-band information processing module；Base
Information processing module obtains positional information, subsequently enters step 9；
Step 4: judge whether battery dump energy is higher than the second percentage ratio b%；If so, the process of execution step 5；Otherwise
The process of execution step 10；
Step 5:gps module continuously works, and persistently obtains current location information, sends to base-band information processing module.Base
Information processing module obtains positional information, subsequently enters step 6；
Step 6:ais receiver module detects the rssi value on 2 passages of ais respectively, subsequently enters step 7；
Step 7: judge whether the rssi of 2 ais passages is higher than all cdbm；If so, the process of execution step 9；Otherwise hold
Row step 8；
Step 8: transmit power p of setting ais transmitter module is p2, subsequently enters step 9；
Step 9:ais sending module to send ais distress signals with transmit power at set time intervals, every b1
After time, enter step 14；
Step 10:gps module obtains current location information, sends to base-band information processing module, subsequently enters step 11；
Startup a interval time of step 11:gps module is arranged to a1, gps module subsequently into resting state, with laggard
Enter step 12；
The interval of step 12:ais sending module sends time t and is arranged to t2, subsequently enters step 13；
Step 13: base-band information processing module obtains positional information, preserves this positional information simultaneously；It is in gps module
In the resting state stage, the last gps positional information obtaining will be always as current location information；Gps module is in dormancy a1
Time restart after will more new location information, subsequently enter step 6；
Step 14: again detect one-shot battery electricity, subsequently enter step 2；
In above-described embodiment, the first percentage ratio a% is more than the second percentage ratio b%；Transmit power p1 of ais transmitter module is less than
p2；The emission duration t1 of ais transmitter module is less than t2.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, this practicality can be realized in other specific forms new
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, this practicality is new
The scope of type is limited by claims rather than described above, it is intended that the containing of equivalency that will fall in claim
All changes in justice and scope are included in this utility model.Any reference in claim should not be considered as limiting
Involved claim.
Claims (5)
1. a kind of ais maritime search and rescue position indicating mark, including gps radio-frequency front-end (1), gps receiver module (2), ais radio-frequency front-end (3),
Ais receiver module (4), ais transmitter module (5), base-band information processing module (6) and power module (7), described gps radio frequency
The external gps antenna in front end (1), the described external ais antenna of ais radio-frequency front-end (3) is it is characterised in that described gps receiver module
(2) it is connected between gps radio-frequency front-end (1) and base-band information processing module (6), described ais radio-frequency front-end (3) and base-band information
Ais receiver module (4) and ais transmitter module (5) is connected respectively, described power module (7) is also connected between processing module (6)
In base-band information processing module (6)；Described power module (7) includes solar panels (71), rechargeable battery (72) and power supply pipe
Reason and monitoring unit (73), described rechargeable battery (72) connects solar panels (71), power management and monitoring unit respectively
(73), power management and monitoring unit (73) connect base-band information processing module (6).
2. ais maritime search and rescue position indicating mark according to claim 1 is it is characterised in that described gps RF front-end module (1)
Including low-noise amplifier (11) and band filter (12), described band filter (12) and low-noise amplifier (11) are even
Connect, described low-noise amplifier (11) connects external gps antenna；Described gps receiver module (2) include low-converter (21), in
Audio amplifier (22) and analog-digital converter (23), low-converter (21), intermediate frequency amplifier (22) and analog-digital converter (23) are successively
Connect, described low-converter (21) connects band filter (12), described analog-digital converter (23) connects base-band information and processes mould
Block (6).
3. ais maritime search and rescue position indicating mark according to claim 1 is it is characterised in that described ais radio-frequency front-end (3) includes
Low pass filter (31), transmit-receive switch (32), low-noise amplifier (33) and shunt (34), described low pass filter
(31) connect external ais antenna, described transmit-receive switch (32) is connected to low pass filter (31) and low-noise amplifier
(33) between, described transmit-receive switch (32) is also associated with the adjustable power amplifier (51) of ais transmitter module (5), institute
State shunt (34) to be connected between low-noise amplifier (33) and ais receiver module (4).
4. ais maritime search and rescue position indicating mark according to claim 1 is it is characterised in that described ais receiver module (4) includes
The receiving channel of two-way independence, every road receiving channel all includes SAW filter (411), low-converter (412), intermediate-frequency filter
(413) and analog-digital converter (414), described SAW filter (411) connects the shunt (34) of ais radio-frequency front-end (3), described
SAW filter (411), low-converter (412), intermediate-frequency filter (413), analog-digital converter (414) are sequentially connected, described mould
Number converter (414) connects base-band information processing module (6)；
5. ais maritime search and rescue position indicating mark according to claim 1 is it is characterised in that described ais transmitter module (5) includes
The digital to analog converter (52) being sequentially connected and adjustable power amplifier (51), described digital to analog converter (52) connects at base-band information
Reason module (6) connects, and described adjustable power amplifier (51) connects transmit-receive switch (32).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620966226.1U CN205921752U (en) | 2016-08-29 | 2016-08-29 | Temperature scale is shown in AIS maritime search and rescue |
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| CN201620966226.1U CN205921752U (en) | 2016-08-29 | 2016-08-29 | Temperature scale is shown in AIS maritime search and rescue |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106211294A (en) * | 2016-08-29 | 2016-12-07 | 深圳市夸克云电子信息技术有限公司 | A kind of AIS maritime search and rescue position indicating mark and show method for position |
| CN109444920A (en) * | 2018-10-15 | 2019-03-08 | 国家***第海洋研究所 | A kind of AIS beacon instrument applied to underwater equipment positioning recycling |
| CN112865834A (en) * | 2021-03-10 | 2021-05-28 | 上海海事大学 | Be equipped with miniaturized AIS-MOB of board-mounted antenna |
-
2016
- 2016-08-29 CN CN201620966226.1U patent/CN205921752U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106211294A (en) * | 2016-08-29 | 2016-12-07 | 深圳市夸克云电子信息技术有限公司 | A kind of AIS maritime search and rescue position indicating mark and show method for position |
| CN106211294B (en) * | 2016-08-29 | 2023-09-01 | 深圳市夸克云电子信息技术有限公司 | AIS maritime search and rescue position indication mark and position indication method thereof |
| CN109444920A (en) * | 2018-10-15 | 2019-03-08 | 国家***第海洋研究所 | A kind of AIS beacon instrument applied to underwater equipment positioning recycling |
| CN112865834A (en) * | 2021-03-10 | 2021-05-28 | 上海海事大学 | Be equipped with miniaturized AIS-MOB of board-mounted antenna |
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