CN109285322A - A kind of drowning alarm system and method based on displacement signal and infrared signal - Google Patents
A kind of drowning alarm system and method based on displacement signal and infrared signal Download PDFInfo
- Publication number
- CN109285322A CN109285322A CN201811136955.4A CN201811136955A CN109285322A CN 109285322 A CN109285322 A CN 109285322A CN 201811136955 A CN201811136955 A CN 201811136955A CN 109285322 A CN109285322 A CN 109285322A
- Authority
- CN
- China
- Prior art keywords
- displacement
- signal
- alarm
- main control
- infrared inductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- G08B21/084—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 physical movement characteristics of the water
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/30—Transforming light or analogous information into electric information
- H04N5/33—Transforming infrared radiation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
Abstract
The present invention provides a kind of drowning alarm system and method based on displacement signal and infrared signal, and the drawstring outermost end of displacement sensor fixes the marker that can float on the water, and when marker floats up and down, sensor drawstring will be moved back and forth.The signal measured is passed to main control singlechip by displacement sensor, and main control singlechip judges whether signal reaches threshold value, opens infrared inductor in a dormant state if reaching.Infrared inductor immediately detects current waters, generates graphic images, and graphic images are transferred in the computer of preset alarm center using Radio Transmission Technology.The graphic images that the personnel that receive a crime report are transmitted according to infrared inductor, judge this it is overboard whether be man overboard's accident, however, it is determined that be man overboard, then button press makes to sound an alarm in lakeside/river bank warning device, so that neighbouring personnel rush at once, while responding is reinforced.If it is determined that non-man overboard's accident, then carry out the alert processing that disappears, less rate of false alarm.
Description
Technical field
The present invention relates to alarming drowning technical field, more particularly to a kind of drowned based on displacement signal and infrared signal
Alarm system and method are mainly used in the alarming drowning of river bank, lakeside.
Background technique
Current anti-drowned equipment is applied to the professional Swimming pool such as swimming pool mostly, drowned for city lakeside/river bank
Deliverance apparatus also study it is very few.In current social environment, the drowned second largest cause of the death for having become young man in city is only secondary
In traffic accident.In whole world sudden death event, drowning is the third-largest preventible accident.Therefore, it in today's society, grinds
Studying carefully lakeside/river bank drowning alarming method just seems particularly necessary.
In current alarming drowning equipment, personnel is needed to wear relevant anti-drowned equipment in advance mostly, and lakeside/river
Side is drowned to belong to sudden contingency, therefore Worn type alarming drowning equipment does not have exploitativeness.Current simultaneously is drowned
Warning device can not monitor river bank monitor image in real time, and the report of police's remote-controllable is added in drowning alarm device
Alert device is also that current technology is unexistent, this way is convenient for the secondary-confirmation of police, reduces false alarm rate.
Summary of the invention
The technical problems to be solved by the present invention are: in order to overcome the shortcomings in the prior art, the present invention provides a kind of base
In the drowning alarm system and method for displacement signal and infrared signal, this method can effectively prevent the drowned thing in city lakeside/river bank
Therefore generation, reduce drowned lethality.It is also convenient for promoting simultaneously, the drowned cause in current city lakeside/river bank can be efficiently solved
The generation of dead accident.
The present invention solves its technical problem technical solution to be taken: a kind of based on displacement signal and infrared signal
Drowning alarm system, displacement sensor, electronic ruler signal conversion module, infrared induction including 2000~4000mm stroke range
Device, main control singlechip, alarm and alarm center computer terminal and alarm button；Institute's displacement sensors are equipped with drawstring
And buoy, the buoy are placed in water and are connect by drawstring with displacement sensor, it can be by the fluctuation situation Real-time Feedback of the water surface
Institute's displacement sensors are given, when the buoy floats up and down due to by weight overboard influenced, institute's displacement sensors
Drawstring will reciprocatingly move therewith；The infrared inductor is set to above the water surface, is used for water surface thermal imaging；The displacement sensing
Device and infrared inductor are connect with the main control singlechip, and the main control singlechip is used to receive the displacement letter of displacement sensor
Number, and infrared inductor is controlled according to displacement signal and is opened；The computer terminal of the main control singlechip and alarm center passes through
The wireless communication module of home communications operator connects, and sends alarm center for the thermal imaging of infrared inductor；The report
Alert device and the alarm button are wirelessly connected, for receiving the alarm signal of alarm button sending and sounding an alarm.
It further, further include electronic ruler signal conversion module in order to realize the conversion and communication of signal, the electronic ruler letter
Number conversion module is connected between displacement sensor and main control singlechip, the analog signal conversion for exporting displacement sensor
The digital signal that can be identified for main control singlechip.Electronic ruler signal conversion module can use RS485 serial communication module.
A kind of alarming drowning system, method based on displacement signal and infrared signal, including above-mentioned drowning alarm system, also
The following steps are included:
S1: displacement sensor measures the displacement that the water surface fluctuates up and down by buoy and drawstring, and the data measured are sent out
Give main control singlechip；Buoy is set as floating on water surface, and is fixedly linked with the drawstring of displacement sensor above the water surface, when
When buoy floats up and down due to by weight overboard influenced, displacement sensor drawstring will reciprocatingly move therewith, by the water surface
Fluctuation situation Real-time Feedback to displacement sensor；
S2: the displacement received is compared by main control singlechip with displacement threshold value, when displacement meets or exceeds position
After moving threshold value, main control singlechip opens infrared inductor in a dormant state；
S3: after infrared inductor in a dormant state is opened, infrared inductor immediately examines current waters
It surveys, generates graphic images, and graphic images are transferred to by preset connect by main control singlechip using Radio Transmission Technology
The computer terminal at alert center；
S4: the computer terminal of alarm center shows that the personnel that receive a crime report are transmitted according to infrared inductor to graphic images
Graphic images, judge this it is overboard whether be man overboard's accident, however, it is determined that be man overboard, then press alarm button, lead to
It crosses wireless signal and is sent to alarm, sound an alarm the alarm of region, nearby personnel rescue in time for prompt, go out simultaneously
Police is reinforced；If it is determined that non-man overboard's accident, then carry out the alert processing that disappears.Two are carried out by graphic images by the personnel of receiving a crime report
It is secondary to judge whether it is man overboard, to reduce false alarm rate.
Further, the main control singlechip preset displacement threshold value, the displacement threshold value formula are as follows:
Wherein, y is displacement threshold value, cm；X is drowning man's weight, kg；Displacement threshold value formula is by Origin to test
Data carry out obtained by nonlinear fitting.
Further, in order to improve the performances of turning one's coat of all parts, institute's displacement sensors, main control singlechip, electronic ruler letter
Number conversion module and infrared inductor all have water-proof function.
Further, institute's displacement sensors, main control singlechip, electronic ruler signal conversion module, infrared inductor and alarm
Device measures its safety index through test and reaches NFP90-307 standard and the fixed safety index of ASTMF-2208 standard.
Compared with the prior art, the present invention has the following advantages:
1, waters is monitored simultaneously by displacement sensor and infrared inductor；
2, equipment reaction speed is fast, can alarm at initial stage in man overboard and start rescue；
3, artificial secondary-confirmation is carried out by the graphic images that transmission generates, rate of false alarm is low；
4, using sensor chain control, have and operate with convenient and fast advantage；
5, preset threshold value can be with sets itself in single-chip microcontroller, and every waters can be practical with adaptation to local conditions；
6, the alarm after drowned accident occurs for confirmation near energy Remote Open accident waters, is convenient for neighbouring police
Go to rescue；
7, this anti-drowning alarming method suitable environment is wide, is applicable in the environment such as city river bank, lakeside.In conclusion
The present invention is ingenious in design, and high degree of automation, the reaction time is short, easily operated, is suitble to apply to the drowned report in city lakeside/river bank
It is alert.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the schematic diagram of drowning alarm system of the present invention.
Fig. 2 is displacement and weight relation schematic diagram.
Fig. 3 is the flow diagram of drowning alarming method of the present invention.
In figure: 1, displacement sensor；2, drawstring；3, buoy；4, electronic ruler signal conversion module；5, main control singlechip；6,
Infrared inductor；7, computer terminal；8, alarm button；9, alarm；10, wireless signal；11, alarm center.
Specific embodiment
Presently in connection with attached drawing, the present invention is described in detail.This figure is simplified schematic diagram, is only illustrated in a schematic way
Basic structure of the invention, therefore it only shows the composition relevant to the invention.
As shown in Figure 1, a kind of drowning alarm system based on displacement signal and infrared signal of the invention, including 2000~
The displacement sensor 1 of 4000mm stroke range, electronic ruler signal conversion module 4, infrared inductor 6, main control singlechip 5, alarm
The computer terminal 7 and alarm button 8 of device 9 and alarm center 11；Institute's displacement sensors 1 are equipped with drawstring 2 and buoy 3, institute
Buoy 3 is stated to be placed in water and connect by drawstring 2 with displacement sensor 1, it can be by the fluctuation situation Real-time Feedback of the water surface to described
Displacement sensor 1, when the buoy 3 floats up and down due to by weight overboard influenced, the drawstring of institute's displacement sensors 1
2 will reciprocatingly move therewith；The infrared inductor 6 is set to above the water surface, is used for water surface thermal imaging；Institute's displacement sensors
1 and infrared inductor 6 connect with the main control singlechip 5, the main control singlechip 5 is used to receive the displacement of displacement sensor 1
Signal, and infrared inductor 6 is controlled according to displacement signal and is opened；The computer of the main control singlechip 5 and alarm center 11 is whole
End 7 is wirelessly connected, and sends alarm center 11 for the thermal imaging of infrared inductor 6；The alarm 9 and the alarm button
8 are wirelessly connected, for receiving the alarm signal of the sending of alarm button 8 and sounding an alarm.
It further include electronic ruler signal conversion module 4 to realize the conversion and communication of signal, the electronic ruler signal conversion
Module 4 is connected between displacement sensor 1 and main control singlechip 5, and the analog signal for exporting displacement sensor 1 is converted into
The digital signal that main control singlechip 5 can identify.Electronic ruler signal conversion module 4 can use RS485 serial communication module.
As shown in figure 3, a kind of alarming drowning system, method based on displacement signal and infrared signal, including above-mentioned drowned report
Alert system, further comprising the steps of:
S1: displacement sensor 1 measures the displacement that the water surface fluctuates up and down, and the data that will be measured by buoy 3 and drawstring 2
It is sent to main control singlechip 5；Buoy 3 is set as floating on water surface, and fixed with the drawstring 2 of displacement sensor 1 above the water surface
It is connected, when buoy 3 floats up and down due to by weight overboard influenced, the drawstring 2 of displacement sensor 1 will be done back and forth therewith
It is mobile, by the fluctuation situation Real-time Feedback of the water surface to displacement sensor 1；
S2: the displacement received is compared by main control singlechip 5 with displacement threshold value, when displacement meets or exceeds position
After moving threshold value, main control singlechip 5 opens infrared inductor 6 in a dormant state；
S3: after infrared inductor 6 in a dormant state is opened, infrared inductor 6 immediately carries out current waters
Detection generates graphic images, and graphic images is transferred to preset connect by main control singlechip 5 using wireless signal 10
The computer terminal 7 at alert center 11；
S4: the computer terminal 7 of alarm center 11 shows that the personnel that receive a crime report are according to infrared inductor 6 to graphic images
The graphic images of transmission, judge this it is overboard whether be man overboard's accident, however, it is determined that be man overboard, then press alarm button
8, alarm 9 is sent to by wireless signal 10, sounds an alarm the alarm 9 of region, nearby personnel rescue in time for prompt
It helps, while responding is reinforced；If it is determined that non-man overboard's accident, then carry out the alert processing that disappears.Pass through thermal imaging by the personnel of receiving a crime report
Image progress is secondary to be judged whether by man overboard, to reduce false alarm rate.
As shown in Fig. 2, the 5 preset displacement threshold value of main control singlechip, the displacement threshold value formula are as follows:
Wherein, y is displacement threshold value, cm；X is drowning man's weight, kg；Displacement threshold value formula is by Origin to test
Data carry out obtained by nonlinear fitting, and Fig. 2 is shown in matched curve.
In order to improve the waterproof performance of all parts, institute's displacement sensors 1, main control singlechip 5, the conversion of electronic ruler signal
Module 4 and infrared inductor 6 all have water-proof function.
Institute's displacement sensors 1, main control singlechip 5, electronic ruler signal conversion module 4, infrared inductor 6 and alarm 9
Its safety index, which is measured, through test reaches NFP90-307 standard and the fixed safety index of ASTMF-2208 standard.
Working principle:
2 outermost end of drawstring of displacement sensor 1 fixes the natant buoy 3 of an energy, when buoy 3 by weight because being fallen
The influence of water and when floating up and down, the drawstring 2 of institute's displacement sensors 1 will reciprocatingly move therewith.Displacement sensor 1 will be surveyed
The physical signal obtained is converted to electric signal, then converts electrical signals to digital signal and incoming main control singlechip by analog-digital converter
5, main control singlechip 5 identifies whether digital signal reaches preset threshold value, if it is, issuing a digital signal, will be in
The infrared inductor 6 of dormant state is opened.
(2) infrared thermal imaging is transmitted
After infrared inductor 6 in a dormant state is opened, infrared inductor 6 immediately examines current waters
It surveys, generates graphic images, and graphic images are transferred to by preset receive a crime report by main control singlechip 5 using wireless signal 10
In the computer terminal 7 at center 11.
(3) judgement and rescue
The graphic images that the personnel that receive a crime report are transmitted according to infrared inductor 6, judge this it is overboard whether be man overboard's accident,
If it is determined that being man overboard, then pressing alarm button 8 makes to sound an alarm in lakeside/river bank warning device 9, so as to neighbouring police service
Personnel rush at once, while responding is reinforced.If it is determined that non-man overboard's accident, then carry out the alert processing that disappears.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff
Various changes and amendments can be carried out without departing from the scope of the present invention completely.The technical scope of this invention is not
The content being confined on specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (6)
1. a kind of drowning alarm system based on displacement signal and infrared signal, it is characterised in that: including displacement sensor (1),
Electronic ruler signal conversion module (4), infrared inductor (6), main control singlechip (5), alarm (9) and alarm center (11)
Computer terminal (7) and alarm button (8)；Institute's displacement sensors (1) are equipped with drawstring (2) and buoy (3), the buoy (3)
It is placed in water and is connect by drawstring (2) with displacement sensor (1), the fluctuation situation Real-time Feedback of the water surface can be given to the displacement
Sensor (1), when the buoy (3) floats up and down due to by weight overboard influenced, the drawing of institute's displacement sensors (1)
Rope (2) will reciprocatingly move therewith；The infrared inductor (6) is set to above the water surface, is used for water surface thermal imaging；The displacement
Sensor (1) and infrared inductor (6) are connect with the main control singlechip (5), and the main control singlechip (5) is for receiving displacement
The displacement signal of sensor (1), and infrared inductor (6) are controlled according to displacement signal and are opened；The main control singlechip (5) with
The computer terminal (7) of alarm center (11) is connected by the wireless communication module of home communications operator, and by infrared inductor
(6) thermal imaging is sent to alarm center (11)；The alarm (9) and the alarm button (8) are wirelessly connected, for receiving
The alarm signal and sound an alarm that alarm button (8) issues.
2. the drowning alarming method based on displacement signal and infrared signal as described in claim 1, it is characterised in that: further include
Electronic ruler signal conversion module (4), the electronic ruler signal conversion module (4) are connected to displacement sensor (1) and master control monolithic
Between machine (5), for converting the number that main control singlechip (5) can identify for the analog signal that displacement sensor (1) exports
Signal.
3. a kind of alarming drowning system, method based on displacement signal and infrared signal, it is characterised in that: including such as claim 2 institute
The drowning alarm system stated, further comprising the steps of:
S1: displacement sensor (1) measures the displacement that the water surface fluctuates up and down, and the number that will be measured by buoy (3) and drawstring (2)
According to being sent to main control singlechip (5)；
S2: the displacement received is compared by main control singlechip (5) with displacement threshold value, when displacement meets or exceeds displacement
After threshold value, main control singlechip (5) opens infrared inductor (6) in a dormant state；
S3: after infrared inductor (6) in a dormant state is opened, infrared inductor (6) immediately carries out current waters
Detection generates graphic images, and it is default to utilize wireless signal (10) to be transferred to graphic images by main control singlechip (5)
Alarm center (11) computer terminal (7)；
S4: the computer terminal (7) of alarm center (11) shows that the personnel that receive a crime report are according to infrared inductor to graphic images
(6) transmit graphic images, judge this it is overboard whether be man overboard's accident, however, it is determined that be man overboard, then press alarm
Button (8) is sent to alarm (9) by wireless signal (10), sounds an alarm the alarm (9) of region, prompts attached
Person of modern times person rescues in time, while responding is reinforced；If it is determined that non-man overboard's accident, then carry out the alert processing that disappears.
4. the drowning alarming method based on displacement signal and infrared signal as claimed in claim 3, it is characterised in that: the master
Control single-chip microcontroller (5) preset displacement threshold value, the displacement threshold value formula are as follows:
Wherein, y is displacement threshold value, cm；X is drowning man's weight, kg；Displacement threshold value formula is by Origin to test data
It carries out obtained by nonlinear fitting.
5. the drowning alarming method based on displacement signal and infrared signal as claimed in claim 2, it is characterised in that: institute's rheme
Displacement sensor (1), main control singlechip (5), electronic ruler signal conversion module (4) and infrared inductor (6) all have water-proof function.
6. the drowning alarming method based on displacement signal and infrared signal as claimed in claim 2, it is characterised in that: institute's rheme
Displacement sensor (1), main control singlechip (5), electronic ruler signal conversion module (4), infrared inductor (6) and alarm (9) are through trying
Test determines its safety index and reaches NFP90-307 standard and the fixed safety index of ASTMF-2208 standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811136955.4A CN109285322A (en) | 2018-09-28 | 2018-09-28 | A kind of drowning alarm system and method based on displacement signal and infrared signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811136955.4A CN109285322A (en) | 2018-09-28 | 2018-09-28 | A kind of drowning alarm system and method based on displacement signal and infrared signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109285322A true CN109285322A (en) | 2019-01-29 |
Family
ID=65181695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811136955.4A Pending CN109285322A (en) | 2018-09-28 | 2018-09-28 | A kind of drowning alarm system and method based on displacement signal and infrared signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109285322A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502354A (en) * | 2020-05-01 | 2020-08-07 | 梅向瑾 | Emergency medical life-saving swimming pool and method for detecting whether person is drowned or not through water level change fluctuation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2671284A1 (en) * | 1991-01-08 | 1992-07-10 | Thomson Csf | System for preventing accidental drowning, with enhanced safety |
| CN1909000A (en) * | 2006-08-23 | 2007-02-07 | 郭佳萍 | Pool alarm |
| CN102005103A (en) * | 2010-11-22 | 2011-04-06 | 宁波高新区英诺科技有限公司 | Anti-drowning warning equipment and warning method thereof |
| CN102693606A (en) * | 2011-03-24 | 2012-09-26 | 中国人民解放军国防科学技术大学 | Shooting network-based method and system for warning of drowning prevention in swimming pool |
| CN107610416A (en) * | 2017-09-24 | 2018-01-19 | 绵阳行吉科技有限公司 | A kind of intelligent swimming pond alarm |
| CN108259837A (en) * | 2018-03-16 | 2018-07-06 | 李良杰 | Water surface safety monitor |
-
2018
- 2018-09-28 CN CN201811136955.4A patent/CN109285322A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2671284A1 (en) * | 1991-01-08 | 1992-07-10 | Thomson Csf | System for preventing accidental drowning, with enhanced safety |
| CN1909000A (en) * | 2006-08-23 | 2007-02-07 | 郭佳萍 | Pool alarm |
| CN102005103A (en) * | 2010-11-22 | 2011-04-06 | 宁波高新区英诺科技有限公司 | Anti-drowning warning equipment and warning method thereof |
| CN102693606A (en) * | 2011-03-24 | 2012-09-26 | 中国人民解放军国防科学技术大学 | Shooting network-based method and system for warning of drowning prevention in swimming pool |
| CN107610416A (en) * | 2017-09-24 | 2018-01-19 | 绵阳行吉科技有限公司 | A kind of intelligent swimming pond alarm |
| CN108259837A (en) * | 2018-03-16 | 2018-07-06 | 李良杰 | Water surface safety monitor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502354A (en) * | 2020-05-01 | 2020-08-07 | 梅向瑾 | Emergency medical life-saving swimming pool and method for detecting whether person is drowned or not through water level change fluctuation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103440735B (en) | A kind of swimming pool drowning lifesaving intelligent system | |
| CN201458576U (en) | Crane remote control system with overload limiting function | |
| CN105501410A (en) | Swimsuit type anti-drowning intelligent life jacket | |
| CN102956089B (en) | A kind ofly search and rescue terminal and the rescue method waterborne based on this search and rescue terminal | |
| WO2011085526A1 (en) | Buoy apparatus for tracing and alarming oil spillage | |
| CN107132592A (en) | Weather monitoring system based on the Big Dipper | |
| CN109285322A (en) | A kind of drowning alarm system and method based on displacement signal and infrared signal | |
| CN203902815U (en) | Intelligent life jacket | |
| CN111063358A (en) | Early fire early warning and escape indicating system with life recognition function | |
| CN109191780A (en) | A kind of drowning alarm system and method based on displacement signal and dB signal | |
| CN202854341U (en) | System for alarming and positioning people falling in water at sea | |
| CN109533228A (en) | Search and rescue robot under a kind of intelligent water | |
| CN205304956U (en) | Be provided with swimming pool of directional radio signal trigger | |
| CN209142353U (en) | It is a kind of for it is overboard or swimming Intelligent lifesaving control system | |
| CN114763195B (en) | One-key round-trip intelligent rescue life-saving system | |
| CN207354261U (en) | Wearable warning device | |
| CN111007430A (en) | Temporary grounding wire state detection device and method | |
| CN108051030A (en) | A kind of operation monitoring system and design method based on WEB | |
| CN109118717A (en) | A kind of drowning alarm system and method based on angle signal and dB signal | |
| CN212843847U (en) | Water level monitoring buoy with prevent sinking function and flood alarm function | |
| CN202355554U (en) | Intelligent blind-guiding rescue system | |
| CN213057447U (en) | Remote control self-propelled voice life buoy | |
| CN113443099A (en) | Intelligent water life-saving system | |
| CN206255163U (en) | A kind of AIS devices of overboard automatic alarm | |
| CN103149859A (en) | Portable intelligent electronic life buoy controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190129 |