CN113570825A - Swimming pool drowning prevention early warning, positioning and lifesaving system based on Bluetooth technology - Google Patents
Swimming pool drowning prevention early warning, positioning and lifesaving system based on Bluetooth technology Download PDFInfo
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- CN113570825A CN113570825A CN202110925707.3A CN202110925707A CN113570825A CN 113570825 A CN113570825 A CN 113570825A CN 202110925707 A CN202110925707 A CN 202110925707A CN 113570825 A CN113570825 A CN 113570825A
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
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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 invention provides a swimming pool drowning prevention early warning, positioning and lifesaving system based on a Bluetooth technology, which can effectively prevent a drowning event of a swimming pool from occurring and ensure the life safety of a swimmer. Each swimmer entering the swimming pool wears a swimmer tag, a plurality of positioning base stations are arranged right above the swimming pool, each positioning base station is used for receiving tag signals fed back by the swimmer tags in the range of the swimming pool in real time, each positioning base station feeds back the received tag signals of the corresponding swimmer tags to the switch in real time, and the switch feeds back the collected tag signal data to the algorithm engine server; the algorithm engine server accurately positions the swimmer labels in the signal coverage range by using the AOA algorithm of the Bluetooth arrival angle ranging and matching with data references of a plurality of positioning base stations; the drowning prevention early warning and lifesaving application module calculates the information of the entry depth and the entry time of the label of the swimmer in real time to make a decision.
Description
Technical Field
The invention relates to the technical field of lifesaving systems, in particular to a swimming pool drowning prevention early warning, positioning and lifesaving system based on a Bluetooth technology.
Background
Swimming is a sport activity suitable for both the young and the old. In recent years, drowning events of children occur frequently in natatorium, and even in some regular natatorium, excessive drowning events of children occur, so that the life safety of swimming children is endangered, and the business risk of an operating unit is also caused. How to guarantee the safety of children swimming, strengthen the guarantee mechanism in natatorium, guarantee swimmer life safety has been a social problem who awaits a diligent solution. The drowning phenomenon is timely perceived and quickly responded, and the drowning detection method is two crucial links in the drowning rescue process, so that how to accurately identify the drowning event is improved, and the quick start of an alarm mechanism is crucial to a drowning prevention system.
In the prior art, video monitoring or a swimming posture image comparison algorithm and other means are mostly adopted, so that the visual fatigue and negligence of a supervisor are easy, more importantly, the individual data acquisition and definition of a swimmer need to be carried out in advance, moreover, the implementation of the result obtained by image acquisition, comparison and calculation is complex, and the system can be realized only by relying on real-time online networking operation with a network server and a monitoring system.
There are therefore a number of problems with the current overall solutions and techniques:
1. the device is not suitable for the crowded water areas;
2. the accuracy is low, false alarm and missing report are easy to occur, and the effectiveness needs to be improved;
3. the alarm prompt is not obvious and is limited by networking with a network server in real time and depending on the flow of an operator;
4. positioning cannot be carried out or position judgment is inaccurate;
5. the equipment has complex structural design, expensive equipment and high implementation and installation difficulty, and is not suitable for popularization;
7. when the technology is out of date, the technology bottleneck causes insufficient intelligence;
8. the system adaptability and compatibility are limited.
Disclosure of Invention
Aiming at the problems, the invention provides a drowning prevention early warning, positioning and lifesaving system for a natatorium based on a Bluetooth technology, which introduces an advanced Bluetooth AOA technology to participate in the design of a positioning system, adopts a drowning identification decision algorithm with signal intensity as a main variable, has the advantages of intelligence, low power consumption, high accuracy, low cost, easy installation and high safety, can effectively prevent the occurrence of drowning events of the natatorium, and ensures the life safety of swimmers.
Natatorium prevents drowned early warning, location and lifesaving system based on bluetooth, its characterized in that, it includes:
the drowning prevention early warning and lifesaving application module;
a switch;
the positioning base stations are internally provided with Bluetooth receiving modules;
the plurality of the swimmer labels are internally provided with Bluetooth modules;
the algorithm engine server is used for accurately positioning the swimmer tag in the signal coverage range by utilizing the AOA algorithm of the Bluetooth arrival angle ranging in cooperation with the data reference of multiple base stations;
each swimmer entering the swimming pool wears a swimmer tag, a plurality of positioning base stations are arranged right above the swimming pool, each positioning base station is used for receiving tag signals fed back by the swimmer tags in the range of the swimming pool in real time, each positioning base station feeds back the received tag signals of the corresponding swimmer tags to the switch in real time, and the switch feeds back the collected tag signal data to the algorithm engine server;
the algorithm engine server accurately positions the swimmer labels in the signal coverage range by using the AOA algorithm of the Bluetooth arrival angle ranging in cooperation with data reference of a plurality of positioning base stations;
the drowning prevention early warning and lifesaving application module is based on the principle that electromagnetic waves can be absorbed and attenuated by water molecules, the algorithm engine server is used for obtaining the real-time signal intensity of the swimmer label, the real-time signal intensity of the swimmer label is used as a main variable, a corresponding mathematical model and an engineering calculation model are established, an optimized recognition decision algorithm is designed, and the information of the underwater depth and the underwater time of the swimmer label is calculated in real time for decision making;
and when the drowning prevention early warning and lifesaving application module monitors that both values are greater than the threshold value, the drowning prevention early warning and lifesaving application module sends out early warning and alarm processing, otherwise, the monitoring is reset and then is monitored again.
It is further characterized in that:
the system also comprises a natatorium display screen which displays the background data processing result of the drowning prevention early warning and lifesaving module, the positioning image of the swimmer, the early warning or alarm positioning information and other customized information required by the natatorium in real time, and provides visual display target imaging service for the natatorium;
the drowning prevention early warning and lifesaving application module is provided with an expansion interface, the expansion interface is used for being in butt joint with other management systems of the natatorium, the natatorium is subjected to informatization management by utilizing a software platform, and the management level is improved;
the drowning prevention early warning and lifesaving application module simultaneously realizes front-end page operation and data processing of application management software when performing early warning or warning lifesaving control decision;
the swimmer tag and the positioning base station work in a standard 2.4G protocol, realize indoor 0.3-0.5m high-precision positioning through an array antenna AOA angle algorithm, and support an iBeacon protocol and a CoreLocation AoA communication protocol;
the swimmer tag has high adaptability and compatibility, and is designed into any equipment for sending Bluetooth signals according to requirements by combining pressure monitoring and water quality monitoring, so that the system can independently run without depending on the flow of an operator;
based on an electromagnetic wave propagation theory, the attenuation characteristic and the propagation depth of electromagnetic waves in the water of the swimming pool are researched, and on the basis, the relation between the signal intensity of the tag of the swimmer and the water penetration depth is tested and researched, a mathematical model and an engineering calculation model are established, and theoretical support is provided for designing a corresponding decision algorithm;
the optimized recognition decision algorithm is designed by adopting an optimized and improved iterative learning control method on the basis of the established mathematical model and the engineering calculation model, the decision algorithm takes the real-time signal intensity of the swimmer tag as an input variable and the real-time water entry depth of the swimmer tag as an intermediate variable, the continuous accumulated water entry time of the swimmer tag is recorded, and drowning recognition and decision of warning or alarm processing are carried out according to a set time threshold.
After the technical scheme is adopted, the advanced Bluetooth AOA technology is introduced to participate in the design of the positioning system, the drowning identification decision algorithm with the signal intensity as a main variable has the advantages of intelligence, low power consumption, high accuracy, low cost, easiness in installation and high safety, the occurrence of drowning events in a swimming pool can be effectively prevented, and the life safety of swimmers is ensured.
Drawings
FIG. 1 is a block diagram schematically illustrating the structure of an embodiment of the present invention;
FIG. 2 is a basic flow chart of the operation of the drowning prevention early warning and lifesaving module of the present invention;
FIG. 3 is a basic flow diagram of a decision algorithm of the present invention;
the names corresponding to the sequence numbers in the figure are as follows:
the system comprises a natatorium display screen 1, a drowning prevention early warning and lifesaving application module 2, an algorithm engine server 3, a POE (Power over Ethernet) switch 4, a positioning base station 5, a swimmer tag 6 and an expansion interface 7.
Detailed Description
The swimming pool drowning prevention early warning, positioning and lifesaving system based on the Bluetooth technology is shown in the figures 1 to 3: the drowning prevention early warning and lifesaving system comprises a drowning prevention early warning and lifesaving application module 2, an algorithm engine server 3, a POE (Power over Ethernet) switch 4, a plurality of positioning base stations 5 and a plurality of swimmer labels 6; the algorithm engine server 3 accurately positions the swimmer tag 6 in the signal coverage range by using the AOA algorithm of the Bluetooth arrival angle ranging in cooperation with the data reference of the multi-positioning base station 5; each positioning base station 5 is internally provided with a Bluetooth receiving module; a Bluetooth module is arranged in each swimmer tag 6;
each swimmer entering the swimming pool is provided with a swimmer tag 6, a plurality of positioning base stations 5 are arranged right above the swimming pool in an array mode, each positioning base station 5 is used for receiving tag signals fed back by the swimmer tags 6 within the range of the swimming pool in real time, each positioning base station 5 feeds back the received tag signals of the corresponding swimmer tags 6 to the POE switch 4 in real time, and the POE switch 4 feeds back the collected tag signal data to the algorithm engine server 3; in specific implementation, the positioning base station 5 is connected to the POE switch 4 in a wired or wireless manner, and the POE switch 4 transmits the information to the algorithm engine server 3 in a wireless or wired manner; the algorithm engine server 3 accurately positions the swimmer tag 6 in the signal coverage range by using the AOA algorithm of the Bluetooth arrival angle ranging in cooperation with the data reference of the plurality of positioning base stations 5;
the drowning prevention early warning and lifesaving application module 2 is based on the principle that electromagnetic waves can be absorbed and attenuated by water molecules, utilizes the algorithm engine server 3 to obtain the real-time signal intensity of the swimmer tag, takes the real-time signal intensity of the swimmer tag 6 as a main variable, establishes a corresponding mathematical model and an engineering calculation model, designs an optimized recognition decision algorithm, and calculates the information of the underwater penetration depth and the underwater penetration time of the swimmer tag 6 in real time to make a decision;
a depth threshold value and a continuous time threshold value in a state of being greater than the depth threshold value are preset in the drowning prevention early warning and lifesaving application module 2, when the drowning prevention early warning and lifesaving application module 2 monitors that both values are greater than the threshold value, early warning and alarm processing are sent out, and otherwise, monitoring is carried out again after zero clearing.
When the intelligent anti-drowning lifesaving system is specifically implemented, the intelligent anti-drowning lifesaving system further comprises a natatorium display screen 1, wherein the natatorium display screen displays the background data processing result of the anti-drowning early warning and lifesaving module 2, the positioning image, the early warning or alarm positioning information of the swimmer and the customized information required by other natatoriums in real time, and provides visual display target imaging service for the natatorium;
in a more preferable embodiment, the whole system further comprises a plurality of cameras, and the cameras capture the real-time state of the swimmers in real time according to the coordinates of the swimmers corresponding to early warning or alarming obtained by the drowning prevention early warning and lifesaving application module in a decision mode, so that whether early warning or alarming is needed or not is judged in an optimized mode.
The drowning prevention early warning and lifesaving application module 2 is provided with an expansion interface 7, the expansion interface 7 is used for being in butt joint with other management systems of the natatorium, the information management of the natatorium is realized by using a software platform, and the management level is improved;
the drowning prevention early warning and lifesaving application module 2 simultaneously realizes the front-end page operation and data processing of application management software when carrying out early warning or warning lifesaving control decision.
In specific implementation, the drowning prevention early warning and lifesaving application module 2 is independent software which is installed in a computer and carries out module processing through hardware of the computer.
The swimmer tag 6 and the positioning base station 5 work in a standard 2.4G protocol, realize indoor 0.3-0.5m high-precision positioning through an array antenna AOA angle algorithm, and support an iBeacon protocol and a CoreLocation AoA communication protocol;
in specific implementation, the swimmer tag 6 and the positioning base station 5 work by adopting nRF52 series chips, the performance is stable, the ultra-low function is realized, and the design of a loading sensor is supported;
the swimmer tag 6 has high adaptability and compatibility, and is designed into any equipment for sending Bluetooth signals according to requirements by combining pressure monitoring and water quality monitoring, so that the system can independently run without depending on the flow of an operator;
based on an electromagnetic wave propagation theory, the attenuation characteristic and the propagation depth of electromagnetic waves in the water of the swimming pool are researched, and on the basis, the relation between the signal intensity of the tag of the swimmer and the water penetration depth is tested and researched, a mathematical model and an engineering calculation model are established, and theoretical support is provided for designing a corresponding decision algorithm;
and optimizing and identifying a decision algorithm, namely designing the decision algorithm by adopting an optimized and improved iterative learning control method on the basis of the established mathematical model and the engineering calculation model, wherein the decision algorithm takes the real-time signal intensity of the swimmer tag as an input variable and the real-time water entry depth of the swimmer tag as an intermediate variable, records the continuous accumulated water entry time of the swimmer tag, and carries out drowning identification and decision on whether to carry out early warning or alarm processing according to a set time threshold.
The working principle is as follows: the system adopts a signal uplink mode to transmit signals, the swimmer tag sends signals, the positioning base station receives the signals to complete acquisition of positioning data and user data, the information of the position and the signal intensity of the swimmer tag is transmitted to an algorithm engine server through a switch, the algorithm engine server calculates the signal of the swimmer tag through a high-precision positioning engine algorithm, calculates the actual position of the tag and acquires the real-time coordinate position information of the swimmer tag in a swimming pool, the algorithm engine server supports the acquisition of raw data, the position calculation and the coordinate output of a large-capacity tag network and simultaneously acquires the real-time signal intensity of the swimmer tag, the drowning prevention early warning and lifesaving application module acquires the real-time signal intensity of the swimmer tag by using the algorithm engine server based on the principle that electromagnetic waves are absorbed and attenuated by water molecules, and takes the real-time signal intensity of the swimmer tag as a main variable, establishing a corresponding mathematical model and an engineering calculation model, designing an optimization recognition decision algorithm, and calculating information of the water entry depth and the water entry time of the swimmer label in real time to make a decision; before decision making, presetting a depth threshold value and a continuous time threshold value in a state of being greater than the depth threshold value in a drowning prevention early warning and lifesaving application module, when the drowning prevention early warning and lifesaving application module monitors that both values are greater than the threshold value, sending out early warning and alarm processing, and otherwise, monitoring again after zero clearing; the intelligent drowning identification decision-making method introduces an advanced Bluetooth AOA technology to participate in the design of a positioning system, takes the signal intensity as a main variable, has the advantages of intelligence, low power consumption, high accuracy, low cost, easiness in installation and high safety, can effectively prevent the occurrence of drowning events in a swimming pool, and ensures the life safety of swimmers.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. Natatorium prevents drowned early warning, location and lifesaving system based on bluetooth, its characterized in that, it includes:
the drowning prevention early warning and lifesaving application module;
a switch;
the positioning base stations are internally provided with Bluetooth receiving modules;
the plurality of the swimmer labels are internally provided with Bluetooth modules;
the algorithm engine server is used for accurately positioning the swimmer tag in the signal coverage range by utilizing the AOA algorithm of the Bluetooth arrival angle ranging in cooperation with the data reference of multiple base stations;
each swimmer entering the swimming pool wears a swimmer tag, a plurality of positioning base stations are arranged right above the swimming pool, each positioning base station is used for receiving tag signals fed back by the swimmer tags in the range of the swimming pool in real time, each positioning base station feeds back the received tag signals of the corresponding swimmer tags to the switch in real time, and the switch feeds back the collected tag signal data to the algorithm engine server;
the algorithm engine server accurately positions the swimmer labels in the signal coverage range by using the AOA algorithm of the Bluetooth arrival angle ranging in cooperation with data reference of a plurality of positioning base stations;
the drowning prevention early warning and lifesaving application module is based on the principle that electromagnetic waves can be absorbed and attenuated by water molecules, the algorithm engine server is used for obtaining the real-time signal intensity of the swimmer label, the real-time signal intensity of the swimmer label is used as a main variable, a corresponding mathematical model and an engineering calculation model are established, an optimized recognition decision algorithm is designed, and the information of the underwater depth and the underwater time of the swimmer label is calculated in real time for decision making;
and when the drowning prevention early warning and lifesaving application module monitors that both values are greater than the threshold value, the drowning prevention early warning and lifesaving application module sends out early warning and alarm processing, otherwise, the monitoring is reset and then is monitored again.
2. The bluetooth technology based natatorium drowning prevention early warning, positioning and life saving system as claimed in claim 1, characterized in that: the intelligent swimming pool system further comprises a swimming pool display screen, wherein the swimming pool display screen is used for displaying a background data processing result of the drowning prevention early warning and lifesaving module, positioning images of swimmers, early warning or alarm positioning information and other customized information required by the swimming pool in real time, and visual display target imaging service is provided for the swimming pool.
3. The bluetooth technology based natatorium drowning prevention early warning, positioning and life saving system as claimed in claim 1, characterized in that: the drowning prevention early warning and lifesaving application module is provided with an expansion interface, the expansion interface is used for being in butt joint with other management systems of the natatorium, and the software platform is used for achieving informatization management of the natatorium.
4. The bluetooth technology based natatorium drowning prevention early warning, positioning and life saving system as claimed in claim 3, characterized in that: the drowning prevention early warning and lifesaving application module simultaneously realizes front-end page operation and data processing of application management software when performing early warning or warning lifesaving control decision.
5. The bluetooth technology based natatorium drowning prevention early warning, positioning and life saving system as claimed in claim 1, characterized in that: the swimmer tag and the positioning base station work in a standard 2.4G protocol, the indoor 0.3-0.5m high-precision positioning is realized through an array antenna AOA angle algorithm, and an iBeacon protocol and a CoreLocation AoA communication protocol are supported.
6. The bluetooth technology based natatorium drowning prevention early warning, positioning and life saving system as claimed in claim 1, characterized in that: the swimmer tag has high adaptability and compatibility, and is designed into any equipment for sending Bluetooth signals according to requirements by combining pressure monitoring and water quality monitoring, so that the system can independently run without depending on the flow of an operator.
7. The bluetooth technology based natatorium drowning prevention early warning, positioning and life saving system as claimed in claim 1, characterized in that: based on the electromagnetic wave propagation theory, the attenuation characteristic and the propagation depth of the electromagnetic waves in the water of the swimming pool are researched, on the basis, the relation between the signal intensity of the tag of the swimmer and the water penetration depth is tested and researched, a mathematical model and an engineering calculation model are established, and theoretical support is provided for designing a corresponding decision algorithm.
8. The bluetooth technology based natatorium drowning prevention early warning, positioning and life saving system as claimed in claim 7, wherein: the optimized recognition decision algorithm is designed by adopting an optimized and improved iterative learning control method on the basis of the established mathematical model and the engineering calculation model, the decision algorithm takes the real-time signal intensity of the swimmer tag as an input variable and the real-time water entry depth of the swimmer tag as an intermediate variable, the continuous accumulated water entry time of the swimmer tag is recorded, and drowning recognition and decision of warning or alarm processing are carried out according to a set time threshold.
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| CN202110925707.3A CN113570825A (en) | 2021-08-12 | 2021-08-12 | Swimming pool drowning prevention early warning, positioning and lifesaving system based on Bluetooth technology |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202648743U (en) * | 2012-07-17 | 2013-01-02 | 成都九洲电子信息系统股份有限公司 | Water level monitoring system using radio-frequency communication method |
| JP2013034763A (en) * | 2011-08-10 | 2013-02-21 | Jvc Kenwood Corp | Drowning determination system |
| CN103021136A (en) * | 2012-12-24 | 2013-04-03 | 电子科技大学 | System and method for monitoring swimming pool drowning based on Internet of Things |
| CN103440735A (en) * | 2013-09-17 | 2013-12-11 | 北京海豚光波科技开发有限公司 | Swimming pool drowning life-saving intelligent system |
| CN106912006A (en) * | 2017-04-01 | 2017-06-30 | 成都精位科技有限公司 | A kind of wisdom swimming exercise system and the method for realizing Sport Administration |
| CN207182622U (en) * | 2017-05-10 | 2018-04-03 | 上海好敏信息科技有限公司 | A kind of anti-drowned intelligent and safe Forewarning Terminal of wear-type and its communication system |
| CN110824418A (en) * | 2019-12-16 | 2020-02-21 | 深圳市中联讯科技有限公司 | Positioning system and unmanned aerial vehicle based on bluetooth |
-
2021
- 2021-08-12 CN CN202110925707.3A patent/CN113570825A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013034763A (en) * | 2011-08-10 | 2013-02-21 | Jvc Kenwood Corp | Drowning determination system |
| CN202648743U (en) * | 2012-07-17 | 2013-01-02 | 成都九洲电子信息系统股份有限公司 | Water level monitoring system using radio-frequency communication method |
| CN103021136A (en) * | 2012-12-24 | 2013-04-03 | 电子科技大学 | System and method for monitoring swimming pool drowning based on Internet of Things |
| CN103440735A (en) * | 2013-09-17 | 2013-12-11 | 北京海豚光波科技开发有限公司 | Swimming pool drowning life-saving intelligent system |
| CN106912006A (en) * | 2017-04-01 | 2017-06-30 | 成都精位科技有限公司 | A kind of wisdom swimming exercise system and the method for realizing Sport Administration |
| CN207182622U (en) * | 2017-05-10 | 2018-04-03 | 上海好敏信息科技有限公司 | A kind of anti-drowned intelligent and safe Forewarning Terminal of wear-type and its communication system |
| CN110824418A (en) * | 2019-12-16 | 2020-02-21 | 深圳市中联讯科技有限公司 | Positioning system and unmanned aerial vehicle based on bluetooth |
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