CN107886681A - Fishery safety of crew's self-rescue system - Google Patents
Fishery safety of crew's self-rescue system Download PDFInfo
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- CN107886681A CN107886681A CN201711021215.1A CN201711021215A CN107886681A CN 107886681 A CN107886681 A CN 107886681A CN 201711021215 A CN201711021215 A CN 201711021215A CN 107886681 A CN107886681 A CN 107886681A
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- alarm
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- overboard
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- time interval
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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
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/08—Alarms for ensuring the safety of persons responsive to the presence of persons in a body of water, e.g. a swimming pool; responsive to an abnormal condition of a body of water
- G08B21/088—Alarms for ensuring the safety of persons responsive to the presence of persons in a body of water, e.g. a swimming pool; responsive to an abnormal condition of a body of water by monitoring a device worn by the person, e.g. a bracelet attached to the swimmer
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a kind of fishery safety of crew self-rescue system, it includes：It is placed on hull, successfully confirms for being communicated in set time interval to each crewman's alarm in answer List, confirm to fail to communicate successful crewman's alarm in the response time interval of defined simultaneously and synchronously trigger the Shipborne terminal of lost contact alarm mechanism, it is additionally operable to the sync id after the overboard warning message transmitted by a certain or several crewman's alarms is received, shows crewman's alarm currently overboard position and real-time update hull and the relative position of the overboard position；And it is some worn by crewman and the crewman's alarms that can be communicated wirelessly in set time interval with the Shipborne terminal, what crewman's alarm was additionally operable to send when overboard, which comprise at least, the overboard warning message of the current overboard position of crewman's alarm.The present invention has a small volume, wears convenient and automatic alarm of intaking, the advantages that without actively triggering.
Description
Technical field
The invention belongs to wireless communication technique field, the overboard alarm of specifically a kind of crewman based on wireless telecommunications makes
Fishery safety of crew's self-rescue system.
Background technology
Due to sea faring particularity, therefore all personnel of operation and work (include ship, raft, platform on the water
The installations and facilities such as work, recreational fisheries, tourism) often along with the danger of unexpected overboard, and when staff falls
During water, it can be carried out rapidly and alarm positions overboard position and is just particularly important, directly affect rescue efficiency.Just
Presently, the overboard alarm technique of current crewman is remained in following problems：1st, either fallen based on what AIS or the generation of the Big Dipper 1 were communicated
Water alarm technique, there is the problem of volume is big or cost is high in unavoidable system the problem of due to its transmission power；2nd, Chuan Yuanluo
Water optimal rescue time is within several hours or even shorter then remote communication distance does not have any effect；3rd, the overboard report having
Alert equipment, which has to actively triggering, to be responded.
The content of the invention
In view of defects in the prior art, the invention aims to provide a kind of fishery safety of crew self-rescue system,
The system has a small volume, wears convenient and water inlet automatic alarm, the advantages that without actively triggering.
To achieve these goals, technical scheme：
A kind of fishery safety of crew self-rescue system, it is characterised in that including：
It is placed on hull, for leading in set time interval to each crewman's alarm in answer List
Believe and successfully confirm, while confirm to fail to communicate in the response time interval of defined and successful crewman's alarm and synchronously touch
The Shipborne terminal of lost contact alarm mechanism is sent out, described Shipborne terminal is additionally operable to be sent out receiving a certain or several crewman's alarms
Sync id after the overboard warning message sent, display crewman's alarm currently overboard position and real-time update hull with it is described
The relative position of overboard position；
And it is some by crewman wear and can in set time interval with the Shipborne terminal carry out channel radio
Crewman's alarm of news, what crewman's alarm was additionally operable to send when overboard, which comprises at least, has crewman's alarm current
The overboard warning message of overboard position.
Further, if the lost contact alarm mechanism refers to a certain crewman's alarm in the response time interval of defined
Do not communicated with Shipborne terminal, extract crewman's alarm and corresponding response sequence number and carry out on the answer list
Alarm.
Further, the Shipborne terminal comprises at least：
The radio frequency unit to be communicated with each crewman's alarm, the radio frequency unit, which comprises at least, to be used to necessarily lead to
The first radio-frequency module of the overboard warning message that any crewman's alarm is sent is received in the range of letter and for being advised
Communicate to be confirmed whether to trigger lost contact alarm mechanism in Shipborne terminal with Shipborne terminal in fixed response time interval
Second radio-frequency module；
As the control unit that center is controlled in distal end, described control unit is used in set time interval to response
Each crewman's alarm in list, which is communicated, successfully to be confirmed and is confirming to fail in the response time interval in defined
Communicate successful crewman's alarm when synchronously trigger lost contact alarm mechanism, while receiving a certain or several crewman's alarm institutes
The current overboard position and in real time of sync id, display crewman's alarm on the display unit after the overboard warning message sent
Update hull and the relative position of the overboard position；
It is controlled by the display unit of described control unit, the display unit is used to show current flight data and send out
Show that currently overboard position and real-time update show that hull is relative with the overboard position to crewman's alarm when raw overboard
Position；
The positioning unit of position positioning is carried out to hull position；
And alarm unit.
Further, the Shipborne terminal also includes pushbutton unit, and described control unit is receiving crewman's alarm
Alarm unit is persistently controlled to carry out alarm after transmitted overboard warning message until receiving the closing letter of pushbutton unit
Number.
Further, crewman's alarm includes：
Power supply unit；
GPS positioning unit；
Be controlled by the alarm radio frequency unit of low-power consumption processing unit, its be used in set time interval with it is described
Shipborne terminal communicates wirelessly, and is sent around with set overboard frequency range when overboard current overboard including at least having
The overboard warning message of position；
And low-power consumption processing unit, it is used to carry out channel radio in control alarm radio frequency unit and the Shipborne terminal
The electricity of power supply unit is monitored while news, it is whole to boat-carrying that alarm radio frequency unit is triggered if less than set alarm electricity
End sends low battery warning message.
Further, crewman's alarm preferably uses wearable terminal carrier format.
Further, crewman's alarm also includes：
For detecting the temperature sensor of wearing personnel's body temperature.
Further, corresponding to the Shipborne terminal is shown by display unit after low battery warning message is received
The electricity of the power supply unit of crewman's alarm is abnormal.
Further, crewman's alarm also includes：
Overboard sensor, it is used to trigger alarm automatically when dressing man overboard.
Compared with prior art, beneficial effects of the present invention：
System of the present invention is left ship certain distance (signal lost contact) in the crewman for wearing crewman's alarm or fallen
During water, alarm signal can be triggered, Shipborne terminal display unit while carrying out alert notice other staff and being searched and rescued can show
Show the warning message of correlation；And the positioning function of crewman's alarm, when triggering overboard alarm, positioning function is opened,
No more than overboard distress signal (positional information) is broadcasted in communication context, in order to which whole Shipborne terminals can be received in broadcasting area
To distress signal, rescue efficiency is improved；Therefore visible system of the present invention wears convenient, alarm mechanism with small volume
The advantages that sound and efficient.
Brief description of the drawings
Fig. 1 is the structural framing figure of fishery safety of crew self-rescue system of the present invention；
Fig. 2 is power supply circuit schematic corresponding to Shipborne terminal example of the present invention；
Fig. 3 is positioning unit circuit theory diagrams corresponding to Shipborne terminal example of the present invention；
Fig. 4 is control unit circuit theory diagrams corresponding to Shipborne terminal example of the present invention；
Fig. 5 is watchdog circuit circuit theory diagrams corresponding to Shipborne terminal example of the present invention；
Fig. 6 is radio frequency unit circuit theory diagrams corresponding to Shipborne terminal example of the present invention；
Fig. 7 is WIFI unit circuit theory diagrams corresponding to Shipborne terminal example of the present invention；
Fig. 8 is alarm unit schematic diagram corresponding to Shipborne terminal example of the present invention；
Fig. 9 is local storage unit circuit theory diagrams corresponding to Shipborne terminal example of the present invention；
Figure 10 is alarm radio frequency unit circuit theory diagrams corresponding to crewman's alarm example of the present invention；
Figure 11 is low-power consumption processing unit circuit theory diagrams corresponding to crewman's alarm example of the present invention；
Figure 12 is GPS positioning unit circuit theory diagrams corresponding to crewman's alarm example of the present invention；
Figure 13 is crewman's alarm example of the present invention-radio frequency unit circuit theory diagrams corresponding to bracelet form；
Figure 14 is crewman's alarm example of the present invention-display screen circuit theory diagrams corresponding to bracelet form；
Figure 15 is crewman's alarm example of the present invention-clock unit circuit theory diagrams corresponding to bracelet form；
Figure 16 is crewman's alarm example of the present invention-low-power consumption processing unit circuit theory corresponding to bracelet form
Figure；
Figure 17 is alarm range circle schematic diagram of the present invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention
Figure, technical scheme is clearly and completely described, it is clear that described embodiment is that a part of the invention is real
Apply example, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
Property work under the premise of the every other embodiment that is obtained, belong to the scope of protection of the invention.
As shown in figure 1, fishery safety of crew self-rescue system of the present invention, it is characterised in that including：
It is placed on hull, for leading in set time interval to each crewman's alarm in answer List
Believe and successfully confirm, while confirm to fail to communicate in the response time interval of defined and successful crewman's alarm and synchronously touch
The Shipborne terminal of lost contact alarm mechanism is sent out, described Shipborne terminal is additionally operable to be sent out receiving a certain or several crewman's alarms
Sync id after the overboard warning message sent, display crewman's alarm currently overboard position and real-time update hull with it is described
The relative position of overboard position；If the lost contact alarm mechanism refers to a certain crewman's alarm at the response time interval of defined
Do not communicated with Shipborne terminal inside, extracting crewman's alarm, corresponding response sequence number is gone forward side by side on the answer list
Row alarm；And it is some by crewman wear and can be communicated wirelessly in set time interval with the Shipborne terminal
Crewman's alarm, what crewman's alarm was used to send when overboard, which comprises at least, has crewman's alarm currently overboard
The overboard warning message of position.
Further, the Shipborne terminal comprises at least：
The radio frequency unit to be communicated with each crewman's alarm, the radio frequency unit are provided with two kinds of alarm mechanisms,
It is respectively overboard alarm and lost contact alarm, i.e., it, which is comprised at least, is used to receive any crewman in certain communication range
First radio-frequency module of the overboard warning message that alarm is sent and in the response time interval of defined and boat-carrying
Terminal communicates to be confirmed whether to trigger the second radio-frequency module of lost contact alarm mechanism in Shipborne terminal；As being controlled in distal end
The control unit at center, described control unit are used to alarm to each crewman in answer List in set time interval
Device, which is communicated, successfully to be confirmed and is confirming to fail the successful crewman's alarm that communicates in the response time interval in defined
When synchronously trigger lost contact alarm mechanism and after the overboard warning message transmitted by a certain or several crewman's alarms is received
Sync id on display unit, display crewman's alarm currently overboard position and real-time update hull and the overboard position
Relative position；Be controlled by the display unit of described control unit, the display unit be used to showing current flight data and
Crewman's alarm currently overboard position and real-time update display hull and the overboard position are shown when occurring overboard
Relative position；The positioning unit of position positioning is carried out to hull position；And alarm unit.Further, the boat-carrying is whole
End also includes pushbutton unit, and described control unit persistently controls after the overboard warning message transmitted by crewman's alarm is received
Alarm unit carries out alarm until receiving the shutdown signal of pushbutton unit.
Further, crewman's alarm includes：Power supply unit；GPS positioning unit；It is controlled by low-power consumption processing unit
Alarm radio frequency unit, it is used to communicate wirelessly with the Shipborne terminal in set time interval, and is falling
Sent during water with set overboard frequency range to surrounding and comprise at least the overboard warning message for having current overboard position；And low work(
Processing unit is consumed, it is used for monitoring while controlling alarm radio frequency unit to be communicated wirelessly with the Shipborne terminal and powered
The electricity of unit, alarm radio frequency unit is triggered if less than set alarm electricity and sends low battery alarm to Shipborne terminal
Information.Further, crewman's alarm preferably uses wearable terminal carrier format.Further, the crewman
Alarm also includes：For detecting the temperature sensor of wearing personnel's body temperature.Further, crewman's alarm also wraps
Include：Overboard sensor, it is used to trigger alarm automatically when dressing man overboard.Further, the Shipborne terminal is connecing
Receive after low battery warning message by display unit show corresponding to crewman's alarm power supply unit electricity it is abnormal.
Based on such scheme, then fishery safety of crew self-rescue system of the present invention, wherein it should be noted that this hair
Bright described saving oneself is meant that on ship after the very first time receives alarm this ship personnel implement in this ship scope with persons falling in water
Inside save oneself, be not to need to report the rescue cried for help in the very first time, corresponding instance is：
Fishery safety of crew's self-rescue system of this example, such as Fig. 2 --- Figure 17, it includes：The boat-carrying being arranged on a certain hull
Terminal and some crewman's alarms being worn on crewman；
Wherein, the Shipborne terminal includes：Power supply；Watchdog circuit；WIFI unit；Local storage unit；With it is each
The radio frequency unit that crewman's alarm is communicated, the radio frequency unit are provided with two kinds of alarm mechanisms, and it is respectively overboard
Alarm and lost contact alarm, i.e., it, which is comprised at least, is used to receive what any crewman's alarm was sent in certain communication range
First radio-frequency module of overboard warning message and for being communicated in the response time interval of defined with Shipborne terminal
In order to Shipborne terminal be confirmed whether trigger lost contact alarm mechanism the second radio-frequency module, the first radio-frequency module its be used for special
The overboard warning message of UHF band reception, and the terminal ship is arbitrarily installed can receive overboard emergency when scope is no more than 1Km
Signal, shortening are required assistance the time, and the second radio-frequency module is used to confirming that each alarm to whether there is in the range of 100 meters of this ship only limiting
Lost contact situation；As the control unit that center is controlled in distal end, described control unit is used for corresponding in set time interval
Answer each crewman's alarm in list and communicated and successfully confirm and confirming to fail at the response time interval of defined
Synchronously trigger lost contact alarm mechanism during the successful crewman's alarm of interior communication and receiving a certain or several crewman's alarm institutes
The current overboard position and in real time of sync id, display crewman's alarm on the display unit after the overboard warning message sent
Update hull and the relative position of the overboard position；It is controlled by the display unit of described control unit, the preferable display
Unit can be shown that its corresponding display information includes basis using the colorful display screen of 5 cun of TFT800*480 resolution ratio
Information is current flight data, and such as date, coordinate, course, the speed of a ship or plane, low pressure alarming information, lost contact warning message is (during display lost contact
The coordinate at quarter, alarm ID number are that response sequence number in answer List, described pass through to answer List are reported to each crewman in advance
Response sequence number corresponding to alert device demarcation each obtains) and the overboard warning message (vessel position at display overboard alarm a moment
And the real time position of alarm for dropping into water)；The positioning unit of position positioning is carried out to hull position, it is preferred to use GPS location list
Member, its be used for when occur lost contact or it is overboard after record current position and time, the purpose is to when it is overboard alarm set out after, due to
GPS, which is started to, to be received positional information and needs 10s~120s, just needs to record current position in the meantime；And there is 3.5mm
The alarm unit of audio output interface (preventing from failing to report because sound is small for improving volume), its warning message can use true man's language
Sound reports form, and audio alert notice can be realized when triggering alarm in addition to the display screen prompt message of display unit, also
Voice message is carried out, increases reliability.Further, the Shipborne terminal also includes pushbutton unit, and described control unit exists
Alarm unit is persistently controlled to carry out alarm until receiving after receiving the overboard warning message transmitted by crewman's alarm
The shutdown signal of pushbutton unit, why settings button unit is to ensure, when the overboard alarm of crewman, only to push button
Just stopping sound and light alarm ensuring that warning message is managed personnel and known.Further, the Shipborne terminal also shows including the Big Dipper
Control and positioning terminal, AIS serial interfaces can be for transmission to land fisheries management department Platform centers.Further, it is described fall
The display of water warning message can be shown that is, when triggering alarm, terminal is from specific time interval in the form of radar circle
Automatically communicated and successfully confirmed and with report of the mobile real-time update centered on hull of hull with each crewman's alarm
The time of alert scope circle and genlocing alarm does highlighted prompting with coordinate, and when triggering overboard alarm, terminal receives a certain
Or synchronously recorded automatically after the overboard warning message transmitted by several crewman's alarms overboard corresponding to each crewman's alarm
The position of alarm point, and with hull mobile real-time update alarm range with the elements of a fix of real-time display drowning people with it is relative
Position.
Further, crewman's alarm have two kinds of alarm modes be lost contact alarm and overboard alarm, specifically
It includes：Power supply unit its can use the disposable lithium cell changed at any time；GPS positioning unit；It is single to be controlled by low-power consumption processing
The alarm radio frequency unit of member, it is used to communicate wirelessly with the Shipborne terminal in set time interval, and
Sent when overboard with set overboard frequency range to surrounding and comprise at least the overboard warning message for having current overboard position；It is and low
Power consumption processing unit, it is used for monitoring while controlling alarm radio frequency unit to be communicated wirelessly with the Shipborne terminal and supplied
The electricity of electric unit, alarm radio frequency unit is triggered if less than set alarm electricity and sends low battery report to Shipborne terminal
Alert information, the alarm with changing battery or more renewing is needed with prompting.Further, crewman's alarm also includes：With
In the temperature sensor of detection wearing personnel's body temperature.Further, crewman's alarm also includes：Overboard sensor, its
For triggering alarm automatically when dressing man overboard, after the alarm that crewman wears triggers overboard alarm, start GPS location
Unit, and start telecommunication function, the location information of oneself is sent into oneself overboard position according to intervals,
After Shipborne terminal receives alarm location information, display and person for help's relative bearing and location information.Further, the ship
Mounted terminal after low battery warning message is received by display unit show corresponding to crewman's alarm power supply unit electricity
Amount is abnormal.Further, the alarm worn between the Shipborne terminal and crewman's alarm using crewman is not being touched
Timing is communicated to the form of Shipborne terminal transmission " heartbeat " bag when dealing with water alarm, and Shipborne terminal timing detects each register
Alarm time-out send " heartbeat " if time beyond predetermined response time, trigger lost contact alarm mechanism.So that it is determined that
The wearer in controllable short-range, separately due to lost contact when Shipborne terminal can not receive annunciator message so the alarm
The Shipborne terminal of function can only record the vessel position at lost contact moment.Further, crewman's alarm can use
Wearable terminal carrier format, such as in the form of intercom or pager, set its non-alarm condition 10min and communicate one with terminal
It is secondary, it is overboard after using setting the special frequency range of overboard emergency, 10 seconds or 1 second 30 meters of intrinsic displacement are fallen with reporting position (1KM scopes)
Every 10 seconds report positions, duration are no less than 3 hours after water.Such as in the form of the bracelet with display screen, non-alarm condition 10min and end
End communication once, be 300 meters of scopes by clock unit time calibration, and carry waterproof display screen for the real-time display time,
Battery electric quantity and Shipborne terminal signal connection status, position is reported within every 10 seconds after overboard, the duration is no less than 3 hours.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (9)
- A kind of 1. fishery safety of crew self-rescue system, it is characterised in that including：It is placed on hull, for being communicated into set time interval to each crewman's alarm in answer List Work(confirms, while confirms to fail communicate in the response time interval of defined successful crewman's alarm and synchronously triggering mistake Join the Shipborne terminal of alarm mechanism, described Shipborne terminal is additionally operable to receiving transmitted by a certain or several crewman's alarms Sync id after overboard warning message, display crewman's alarm currently overboard position and real-time update hull with it is described overboard The relative position of position；And some worn and can be communicated wirelessly in set time interval with the Shipborne terminal by crewman Crewman's alarm, what crewman's alarm was additionally operable to send when overboard, which comprises at least, has crewman's alarm currently overboard The overboard warning message of position.
- 2. fishery safety of crew self-rescue system according to claim 1, it is characterised in that：If the doubtful lost contact alarm mechanism refer to a certain crewman's alarm in the response time interval of defined not with boat-carrying Terminal is communicated, and is extracted crewman's alarm and corresponding response sequence number and is alarmed on the answer list.
- 3. fishery safety of crew self-rescue system according to claim 1 or 2, it is characterised in that：The Shipborne terminal comprises at least：The radio frequency unit to be communicated with each crewman's alarm, the radio frequency unit, which comprises at least, to be used in necessarily communication model Enclose interior the first radio-frequency module for receiving the overboard warning message that any crewman's alarm is sent and in defined Communicate to be confirmed whether to trigger the second of lost contact alarm mechanism in Shipborne terminal with Shipborne terminal in response time interval Radio-frequency module；As the control unit at middle control center, described control unit is used in set time interval in answer List Each crewman's alarm, which is communicated, successfully to be confirmed and is confirming to fail to communicate successfully in the response time interval in defined Crewman's alarm when synchronously trigger lost contact alarm mechanism, it is and overboard transmitted by a certain or several crewman's alarms receiving After warning message on the display unit sync id, display crewman's alarm currently overboard position and real-time update hull with The relative position of the overboard position；It is controlled by the display unit of described control unit, the display unit is used to show current flight data and fall Crewman's alarm currently overboard position and real-time update display hull and the relative position of the overboard position are shown during water；The positioning unit of position positioning is carried out to hull position；And alarm unit.
- 4. fishery safety of crew self-rescue system according to claim 3, it is characterised in that：The Shipborne terminal also includes pushbutton unit, and described control unit is receiving the overboard alarm transmitted by crewman's alarm Alarm unit is persistently controlled to carry out alarm after information until receiving the shutdown signal of pushbutton unit.
- 5. fishery safety of crew self-rescue system according to claim 3, it is characterised in that：Crewman's alarm includes：Power supply unit；GPS positioning unit；It is controlled by the alarm radio frequency unit of low-power consumption processing unit, it is used in set time interval and the boat-carrying Terminal communicates wirelessly, and is sent with set overboard frequency range around including at least there is current overboard position when overboard Overboard warning message；And low-power consumption processing unit, it is used for what is communicated wirelessly in control alarm radio frequency unit with the Shipborne terminal The electricity of power supply unit is monitored simultaneously, and alarm radio frequency unit is triggered if less than set alarm electricity and is sent out to Shipborne terminal Send low battery warning message.
- 6. fishery safety of crew self-rescue system according to claim 5, it is characterised in that：The Shipborne terminal after low battery warning message is received by display unit show corresponding to crewman's alarm confession Electric unit electricity is abnormal.
- 7. fishery safety of crew self-rescue system according to claim 5, it is characterised in that：Crewman's alarm preferably uses wearable terminal carrier format.
- 8. fishery safety of crew self-rescue system according to claim 5, it is characterised in that：Crewman's alarm also includes：For detecting the temperature sensor of wearing personnel's body temperature.
- 9. fishery safety of crew self-rescue system according to claim 5, it is characterised in that：Crewman's alarm also includes：Overboard sensor, it is used to trigger alarm automatically when dressing man overboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711021215.1A CN107886681A (en) | 2017-10-27 | 2017-10-27 | Fishery safety of crew's self-rescue system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711021215.1A CN107886681A (en) | 2017-10-27 | 2017-10-27 | Fishery safety of crew's self-rescue system |
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| CN107886681A true CN107886681A (en) | 2018-04-06 |
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| CN201711021215.1A Pending CN107886681A (en) | 2017-10-27 | 2017-10-27 | Fishery safety of crew's self-rescue system |
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| CN108632747A (en) * | 2018-04-16 | 2018-10-09 | 中山易美信息技术有限公司 | A kind of public security bureau auxiliary police officer management system |
| TWI652651B (en) | 2018-06-01 | 2019-03-01 | 協聚德股份有限公司 | Warning system for preventing people from falling into water |
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| CN110010039A (en) * | 2019-05-20 | 2019-07-12 | 郑州工程技术学院 | The collecting and distributing explaining device of Destination Management |
| CN114531744A (en) * | 2022-01-28 | 2022-05-24 | 西安烽火电子科技有限责任公司 | Emergency lifesaving wireless communication terminal and lifesaving searching method thereof |
| CN114531744B (en) * | 2022-01-28 | 2023-12-15 | 西安烽火电子科技有限责任公司 | Distress lifesaving wireless communication terminal and lifesaving searching method thereof |
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