JP2004164277A - Monitoring system and method for swimming person - Google Patents

Monitoring system and method for swimming person Download PDF

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Publication number
JP2004164277A
JP2004164277A JP2002329324A JP2002329324A JP2004164277A JP 2004164277 A JP2004164277 A JP 2004164277A JP 2002329324 A JP2002329324 A JP 2002329324A JP 2002329324 A JP2002329324 A JP 2002329324A JP 2004164277 A JP2004164277 A JP 2004164277A
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Prior art keywords
wireless
wireless relay
swimmer
receiving
signal
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JP2002329324A
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Japanese (ja)
Inventor
Katsunori Tsuboguchi
克則 坪口
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Mitsubishi Heavy Industries Ltd
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Mitsubishi Heavy Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a swimming person monitoring system and method for monitoring a swimming person to prevent any drowning accident by a simple radio transmitter which does not hinder the swimming of the swimming person. <P>SOLUTION: This swimming person monitoring system is set in a swimming block 30, and provided with radio relay means 12, 14, and 16 for receiving radio signals transmitted from radio transmitters 20 and 22 owned by respective swimming persons when any abnormality is generated, a receiving part 4 for receiving a notification signal indicating the reception of the radio signals from the radio relay means and a monitor computer 2 for announcing the occurrence of any drowning accident based on the notification signal. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、海水浴場やプール等の遊泳者を監視するための遊泳者監視システム及び方法に関する。
【０００２】
【従来の技術】
海水浴場やプール等では水難事故が発生する可能性があり、従来から遊泳者を監視して事故を防止する監視員が設置されている。そして、このような水難事故を防止する技術として、釣り人に所定の装置を装着させ、釣り人が水中に落下したときに自動的に遭難信号を発信し、陸上の受信機側で遭難信号を受信するものが報告されている（例えば、特許文献１参照）。
【０００３】
【特許文献１】
特開平９−９５２９８号公報（図１、請求項１、第５頁）
【０００４】
【発明が解決しようとする課題】
しかしながら、上記した技術の場合、装置が大掛かりとなり動きずらくなるので、遊泳者に装着させるのは実用的でない。又、釣り場のように陸地から近い場所で水難事故が生じたのであれば、陸上の受信機で遭難信号の受信ができるが、海水浴場等では、沖で水難が生じた場合に遭難信号が陸上の受信機に届かない虞がある。
【０００５】
本発明は、上記した問題点に鑑みてなされたもので、遊泳者の遊泳の邪魔にならない簡便な無線発信装置で遊泳者の監視、水難事故防止を実現できる遊泳者監視システム及び方法を提供することを目的とする。
【０００６】
【課題を解決するための手段】
上記した目的を達成するために、本発明の遊泳者監視システムは、遊泳区域内に設置され、遊泳者がそれぞれ有する無線発信装置から異常時に発信される無線信号を受信する複数の無線中継手段と、前記無線中継手段から前記無線信号を受信した旨の通知信号を受信する受信部と、前記通知信号に基づき、水難があった旨を報知する監視コンピュータとを備えたことを特徴とする。
このようにすると、遊泳者の有する無線発信装置は、遊泳区域内に設置された無線中継手段まで到達する無線信号を発信すればよいので、遊泳者の遊泳の邪魔にならない簡便な無線発信装置とすることができる。又、無線発信装置からの無線信号は、遊泳区域内に複数設置された無線中継手段により確実に受信できるので、遊泳者の監視がより確実になる。
【０００７】
請求項２記載の遊泳者監視システムにおいて、前記無線中継手段は、それぞれ前記無線信号の受信範囲が定まっていて、自己の受信範囲内で前記無線信号を受信したときに前記受信部へ前記通知信号を送信することを特徴とする。
このようにすると、無線中継手段は、受信範囲内にある無線発信装置の無線信号のみを受信するので、１つの無線発信装置の無線信号を多数の無線中継手段が受信することによる余分なトラヒック増を起こすことがなくなり、遊泳者の監視がより確実になる。
【０００８】
請求項３記載の遊泳者監視システムにおいて、前記監視コンピュータは、前記無線中継手段にそれぞれ割当てられた識別情報を記録する記録手段を備え、前記無線中継手段は、前記通知信号に自己の識別情報を付加して前記受信部へ送信し、前記監視コンピュータは、前記記録手段を参照して前記通知信号を送信した無線中継手段を特定することを特徴とする。
このようにすると、監視コンピュータは、どの無線中継手段が無線発信装置の無線信号を受信したかがわかるので、例えばその無線中継手段に向かって救助隊を派遣する等、水難への対処が迅速かつ正確となる。
【０００９】
請求項４記載の遊泳者監視システムにおいて、前記無線中継手段と前記無線発信装置との間の無線通信は、近距離無線通信で行われることを特徴とする。
このようにすると、無線信号の到達範囲が限定される近距離無線通信を用いるので、無線発信装置をより省電力、小型化でき、遊泳者の遊泳の邪魔にならないもとにできる。又、無線中継手段の受信範囲も自動的に無線信号の到達範囲と同一となるので、受信範囲をわざわざ調整する必要がなくなり，無線中継手段の設備が簡便になる。
【００１０】
本発明の遊泳者監視方法は、遊泳区域内に設置された複数の無線中継手段のいずれかが、遊泳者がそれぞれ有する無線発信装置からの無線信号を受信する過程と、前記無線中継手段から前記信号を受信した旨の通知信号を受信する過程と、前記通知信号に基づき、水難があった旨を報知する過程とを有することを特徴とする。
【００１１】
【発明の実施の形態】
以下、本発明の実施の形態について、各図を参照して説明する。図１は、本発明の遊泳者監視システムの一実施形態を示す構成図である。この遊泳者監視システムは、監視小屋に設置された監視コンピュータ２、受信局（受信部）４、ラウドスピーカ６、海水浴場の遊泳区域３０内に設置された無線中継局（無線中継手段）１２、１４、１６とを備えている。又、各無線中継局１２〜１６は、遊泳者が有する浮き輪やリストバンドなどに取り付けられた無線発信装置２０、２２との間で無線通信可能になっている。
【００１２】
監視コンピュータ２は、全体を制御する中央制御装置２ａ、各無線中継局毎にそのＩＤ（識別情報）を記録するハードディスク等の記録手段２ｂ、モニタ等からなる表示手段２ｃ、及び受信局４とのインターフェース部（図示しない）を有する。又、記録手段２ｂには、又、各無線中継局１２〜１６の遊泳区域３０内での位置及び受信範囲を表す地図データが記録されている。
【００１３】
無線中継局１２は沖合ブイ５２の上方に設置され、無線中継局１４は飛び込み台５４の上方に設置され、無線中継局１６は浮標ブイ５６の内部に設置されている。無線中継局１２は、全体を制御するＣＰＵ１２ａ、自己のＩＤ（識別情報）を記録するメモリ１２ｂ、受信局４との間で通信するための無線通信部１２ｃ及び無線アンテナ１２ｄ、無線発信装置２０、２２との間で無線通信するための第２無線通信部１２ｅ及び第２無線アンテナ１２ｆ、を備える。無線中継局１４、１６の構成も同様である。なお、無線中継局と受信局との間の通信は、有線で行ってもよい。そして、各無線中継局１２、１４、１６は、無線発信装置２０、２２の無線信号の受信が可能な受信範囲１２ａ、１４ａ、１６ａがそれぞれ定まっている。無線中継局と無線発信装置との間の通信として、例えばＢｌｕｅｔｏｏｔｈと称される近距離無線通信を用いた場合は、この通信での電波到達範囲（約１０ｍ）が受信範囲の半径となる。
【００１４】
無線発信装置２０、２２は、異常時に遊泳者自身が所定のボタンを押下したり、あるいは自動的に遊泳者の脈拍等を測定して無線発信装置側で異常と判断した場合に、無線信号を発信するようになっている。無線発信装置は、上記のほか、水着や水中メガネ等に取り付けてもよい。
【００１５】
次に、図２を参照して、遊泳者の監視を行う手順について説明する。まず、溺れたり体の異常を感じた遊泳者が、異常と判断して身に付けた無線発信装置の所定ボタンを押下すると、無線発信装置は押下があったことを検知し（ステップＳ２）、無線信号（例えば近距離無線信号）を発信する（ステップＳ４）。近距離無線信号の場合、到達距離が決まっているので、その距離内にある無線中継局が第２無線アンテナを介して無線信号を受信する（ステップＳ１０）。
【００１６】
以下では、無線中継局１２が無線信号を受信したものとする。次に、無線中継局１２のＣＰＵ１２ａは、メモリ１２ｂから自己のＩＤを読み取って所定の通知信号に付加し、無線通信部１２ｃ及び無線アンテナ１２ｄを介して受信局４へ送信する（ステップＳ１２）。
【００１７】
受信局４は受信した通知信号を監視コンピュータ２に送信し、監視コンピュータ２は通知信号を受信する（ステップＳ２０）。次に、監視コンピュータ２の中央制御装置２ａは、通知信号から無線中継局のＩＤを取得し、記憶手段２ｂからこのＩＤに該当する無線中継局１２を検索する（ステップＳ２２）。
【００１８】
次に、中央制御装置２ａは、スピーカ６を鳴動させる信号を送信し、スピーカ６から警報を鳴動させる（ステップＳ２４）。これにより、監視員は水難救助の対応をすることができる。
【００１９】
さらに、中央制御装置２ａは、記憶手段２ｂから前記地図データを取得し、ステップＳ２２で検索した無線中継局１２の受信範囲をモニタ２ｃ上に表示する（ステップＳ２６）。
【００２０】
図３は、モニタ２ｃ上に表示された地図データを示す。この図において、遊泳区域３０内に各無線中継局１２〜１６の位置、及びその受信範囲（通常は破線）が表示されている。そして、通知信号を送信した中継局１２の受信範囲が水難発生エリアとして強調表示されている（図のハッチング領域）。これにより、モニタを監視している監視員は、どの無線中継局が遊泳者の無線信号を受信したか、及び遊泳者の存在する領域を示す無線中継局の受信範囲を知ることができるので、例えばその無線中継手段に向かって救助隊を派遣する等、水難への対処が迅速かつ正確となる。
【００２１】
本発明の遊泳者監視システムは、コンピュータと、通信装置等の各種周辺機器と、コンピュータによって動作するソフトウェアプログラムによって実現可能である。このソフトウェアプログラムは、コンピュータ読み取り可能な記憶媒体や通信回線を介して配布可能である。
【００２２】
【発明の効果】
以上説明したように、本発明の遊泳者監視システム及び方法によれば、遊泳者の有する無線発信装置は、遊泳区域内に設置された無線中継手段まで到達する無線信号を発信すればよいので、遊泳者の遊泳の邪魔にならない簡便な無線発信装置とすることができる。又、無線発信装置からの無線信号は、遊泳区域内に複数設置された無線中継手段により確実に受信できるので、遊泳者の監視がより確実になる。
【図面の簡単な説明】
【図１】本発明の遊泳者監視システムの構成を示すブロック図である。
【図２】遊泳者の監視を行う手順を示す図である。
【図３】通知信号を送信した無線中継手段をモニタに表示する態様を示す図である。
【符号の説明】
２ 監視コンピュータ
２ａ 記録手段
４ 受信局（受信部）
１２、１４、１６ 無線中継局（無線中継手段）
１２ａ〜１６ａ 受信範囲
２０、２２ 無線発信装置
３０ 遊泳区域[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a swimmer monitoring system and method for monitoring swimmers such as beaches and pools.
[0002]
[Prior art]
There is a possibility that a water accident may occur in a beach or a swimming pool, and an observer who monitors a swimmer to prevent the accident has been installed. And as a technology to prevent such a water accident, the angler is equipped with a predetermined device, and automatically transmits the distress signal when the angler falls into the water, and the distress signal is received on the land receiver side. What is received is reported (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-9-95298 (FIG. 1, claim 1, page 5)
[0004]
[Problems to be solved by the invention]
However, in the case of the above-mentioned technology, it is not practical to attach it to a swimmer because the device becomes large and becomes difficult to move. Also, if a water accident occurs near the land, such as a fishing ground, an on-shore receiver can receive the distress signal. May not reach the receiver.
[0005]
The present invention has been made in view of the above-described problems, and provides a swimmer monitoring system and method capable of realizing the monitoring of the swimmer and the prevention of a water shortage accident with a simple wireless transmission device that does not disturb the swimmer's swimming. The purpose is to:
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the swimmer monitoring system of the present invention is provided in a swimming area, and a plurality of wireless relay means for receiving a wireless signal transmitted from the wireless transmission device of each of the swimmers when an abnormality occurs. A receiving unit for receiving a notification signal indicating that the wireless signal has been received from the wireless relay unit; and a monitoring computer for notifying that a water shortage has occurred based on the notification signal.
With this configuration, the radio transmission device of the swimmer only needs to transmit a radio signal that reaches the radio relay device installed in the swimming area, so that the radio transmission device does not interfere with the swim of the swimmer. can do. In addition, since the wireless signal from the wireless transmission device can be reliably received by a plurality of wireless relay means provided in the swimming area, the monitoring of the swimmer becomes more reliable.
[0007]
3. The swimmer monitoring system according to claim 2, wherein the wireless relay unit has a predetermined receiving range of the wireless signal, and the notification signal is sent to the receiving unit when the wireless signal is received within its own receiving range. Is transmitted.
With this configuration, since the wireless relay unit receives only the wireless signal of the wireless transmission device within the reception range, the extra traffic increases due to the reception of the wireless signal of one wireless transmission device by a large number of wireless relay units. And monitoring of swimmers becomes more reliable.
[0008]
4. The swimmer monitoring system according to claim 3, wherein the monitoring computer includes a recording unit that records identification information assigned to each of the wireless relay units, and the wireless relay unit includes its own identification information in the notification signal. In addition, the monitoring computer specifies the wireless relay unit that transmitted the notification signal by referring to the recording unit.
By doing so, the monitoring computer can know which wireless relay means has received the wireless signal of the wireless transmission device, and thus can quickly and quickly cope with water shortages, for example, by dispatching a rescue team to the wireless relay means. Be accurate.
[0009]
5. The swimmer monitoring system according to claim 4, wherein the wireless communication between the wireless relay unit and the wireless transmitting device is performed by short-range wireless communication.
With this configuration, since the short-range wireless communication in which the reach of the wireless signal is limited is used, the power of the wireless transmission device can be further reduced, the size can be reduced, and the wireless transmission device can be prevented from hindering the swimmer. In addition, since the receiving range of the wireless relay unit automatically becomes the same as the reach of the wireless signal, there is no need to adjust the receiving range, and the equipment of the wireless relay unit is simplified.
[0010]
The method of monitoring a swimmer of the present invention includes the steps of: receiving a radio signal from a radio transmission device each of which has a swimmer; and The method includes a step of receiving a notification signal indicating that a signal has been received, and a step of notifying that a water shortage has occurred based on the notification signal.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram showing one embodiment of a swimmer monitoring system of the present invention. This swimmer monitoring system includes a monitoring computer 2, a receiving station (receiving section) 4, a loudspeaker 6, a wireless relay station (wireless relay means) 12 installed in a swimming area 30 of a beach, 14, 16 are provided. In addition, each of the wireless relay stations 12 to 16 is capable of wireless communication with wireless transmitting devices 20 and 22 attached to a float, a wristband, or the like possessed by the swimmer.
[0012]
The monitoring computer 2 includes a central control device 2a for controlling the whole, a recording unit 2b such as a hard disk for recording the ID (identification information) for each wireless relay station, a display unit 2c including a monitor, and a receiving station 4. It has an interface unit (not shown). The recording means 2b also records map data indicating the positions and reception ranges of the wireless relay stations 12 to 16 in the swimming area 30.
[0013]
The wireless relay station 12 is installed above the offshore buoy 52, the wireless relay station 14 is installed above the dive stand 54, and the wireless relay station 16 is installed inside a buoy 56. The wireless relay station 12 includes a CPU 12a for controlling the whole, a memory 12b for recording its own ID (identification information), a wireless communication unit 12c and a wireless antenna 12d for communicating with the receiving station 4, a wireless transmitting device 20, A second wireless communication unit 12e and a second wireless antenna 12f for performing wireless communication with the wireless communication unit 22; The configuration of the wireless relay stations 14 and 16 is the same. The communication between the wireless relay station and the receiving station may be performed by wire. Reception ranges 12a, 14a, and 16a in which the radio transmission stations 20, 14, and 16 can receive radio signals of the radio transmission devices 20 and 22 are defined. When short-range wireless communication called Bluetooth, for example, is used as communication between the wireless relay station and the wireless transmission device, the range of radio waves (about 10 m) in this communication is the radius of the reception range.
[0014]
The radio transmission devices 20 and 22 transmit a radio signal when the swimmer itself presses a predetermined button at the time of abnormality or when the radio transmission device determines that the swimmer has abnormally by measuring the swimmer's pulse or the like. It is intended to send. In addition to the above, the wireless transmission device may be attached to a swimsuit, underwater glasses, or the like.
[0015]
Next, a procedure for monitoring a swimmer will be described with reference to FIG. First, when a swimmer who has drowned or sensed an abnormality in the body presses a predetermined button of the wireless transmission device that he / she has determined to be abnormal, the wireless transmission device detects that the push has been performed (step S2), A wireless signal (for example, a short-range wireless signal) is transmitted (step S4). In the case of a short-range wireless signal, since the reachable distance is determined, a wireless relay station within the distance receives the wireless signal via the second wireless antenna (step S10).
[0016]
Hereinafter, it is assumed that the wireless relay station 12 has received the wireless signal. Next, the CPU 12a of the wireless relay station 12 reads its own ID from the memory 12b, adds it to a predetermined notification signal, and transmits it to the receiving station 4 via the wireless communication unit 12c and the wireless antenna 12d (Step S12).
[0017]
The receiving station 4 transmits the received notification signal to the monitoring computer 2, and the monitoring computer 2 receives the notification signal (Step S20). Next, the central controller 2a of the monitoring computer 2 acquires the ID of the wireless relay station from the notification signal, and searches the storage unit 2b for the wireless relay station 12 corresponding to this ID (step S22).
[0018]
Next, the central control device 2a transmits a signal for sounding the speaker 6, and sounds an alarm from the speaker 6 (step S24). This allows the observer to respond to the rescue operation.
[0019]
Further, the central control device 2a acquires the map data from the storage means 2b, and displays the reception range of the wireless relay station 12 searched in step S22 on the monitor 2c (step S26).
[0020]
FIG. 3 shows map data displayed on the monitor 2c. In this figure, the positions of the wireless relay stations 12 to 16 and the reception range (usually, broken lines) are displayed in the swimming area 30. Then, the reception range of the relay station 12 that has transmitted the notification signal is highlighted as a water shortage occurrence area (hatched area in the figure). Thereby, the observer monitoring the monitor can know which wireless relay station has received the swimmer's wireless signal, and the reception range of the wireless relay station indicating the area where the swimmer is present, For example, a rescue squad is dispatched to the wireless relay means to quickly and accurately cope with the water shortage.
[0021]
The swimmer monitoring system of the present invention can be realized by a computer, various peripheral devices such as a communication device, and a software program operated by the computer. This software program can be distributed via a computer-readable storage medium or a communication line.
[0022]
【The invention's effect】
As described above, according to the swimmer monitoring system and method of the present invention, the radio transmission device of the swimmer only needs to transmit a radio signal that reaches radio relay means installed in the swimming area. A simple wireless transmission device that does not hinder the swimmer's swimming can be provided. In addition, since the wireless signal from the wireless transmission device can be reliably received by a plurality of wireless relay means provided in the swimming area, the monitoring of the swimmer becomes more reliable.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a swimmer monitoring system of the present invention.
FIG. 2 is a diagram showing a procedure for monitoring a swimmer.
FIG. 3 is a diagram illustrating a mode in which a wireless relay unit that has transmitted a notification signal is displayed on a monitor.
[Explanation of symbols]
2 monitoring computer 2a recording means 4 receiving station (receiving unit)
12, 14, 16 wireless relay station (wireless relay means)
12a to 16a Reception range 20, 22 Radio transmitter 30 Swimming area

Claims (5)

遊泳区域内に設置され、遊泳者がそれぞれ有する無線発信装置から異常時に発信される無線信号を受信する複数の無線中継手段と、
前記無線中継手段から前記無線信号を受信した旨の通知信号を受信する受信部と、
前記通知信号に基づき、水難があった旨を報知する監視コンピュータと
を備えたことを特徴とする遊泳者監視システム。A plurality of wireless relay means installed in the swimming area and receiving a wireless signal transmitted from the wireless transmission device of the swimmer when an abnormality occurs,
A receiving unit that receives a notification signal indicating that the wireless signal has been received from the wireless relay unit,
A monitoring computer for notifying that a water shortage has occurred based on the notification signal. 前記無線中継手段は、それぞれ前記無線信号の受信範囲が定まっていて、自己の受信範囲内で前記無線信号を受信したときに前記受信部へ前記通知信号を送信することを特徴とする請求項１に記載の遊泳者監視システム。2. The wireless relay unit according to claim 1, wherein a receiving range of the wireless signal is defined, and the wireless relay unit transmits the notification signal to the receiving unit when the wireless relay unit receives the wireless signal within its own receiving range. A swimmer monitoring system according to claim 1. 前記監視コンピュータは、前記無線中継手段にそれぞれ割当てられた識別情報を記録する記録手段を備え、
前記無線中継手段は、前記通知信号に自己の識別情報を付加して前記受信部へ送信し、
前記監視コンピュータは、前記記録手段を参照して前記通知信号を送信した無線中継手段を特定することを特徴とする請求項１又は２に記載の遊泳者監視システム。The monitoring computer includes a recording unit that records identification information assigned to each of the wireless relay units,
The wireless relay unit transmits the notification signal to the receiving unit by adding its own identification information,
The swimmer monitoring system according to claim 1, wherein the monitoring computer specifies the wireless relay unit that transmitted the notification signal with reference to the recording unit. 前記無線中継手段と前記無線発信装置との間の無線通信は、近距離無線通信で行われることを特徴とする請求項１ないし３のいずれかに記載の遊泳者監視システム。The swimmer monitoring system according to any one of claims 1 to 3, wherein wireless communication between the wireless relay unit and the wireless transmitting device is performed by short-range wireless communication. 遊泳区域内に設置された複数の無線中継手段のいずれかが、遊泳者がそれぞれ有する無線発信装置からの無線信号を受信する過程と、
前記無線中継手段から前記信号を受信した旨の通知信号を受信する過程と、
前記通知信号に基づき、水難があった旨を報知する過程と
を有することを特徴とする遊泳者監視方法。Any of a plurality of wireless relay means installed in the swimming area, a process of receiving a wireless signal from a wireless transmission device each having a swimmer,
Receiving a notification signal indicating that the signal has been received from the wireless relay unit,
Notifying that a water shortage has occurred based on the notification signal.
JP2002329324A 2002-11-13 2002-11-13 Monitoring system and method for swimming person Withdrawn JP2004164277A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006069514A (en) * 2004-09-03 2006-03-16 Toshiba Personal Computer System Kk Rescue system, rescue method, and program for swimmers in swimming pool using network
WO2008016679A2 (en) * 2006-08-02 2008-02-07 24Eight Llc Wireless detection and alarm system for monitoring human falls and entries into swimming pools by using three dimensional acceleration and wireless link energy data method and apparatus
KR101015998B1 (en) * 2008-07-04 2011-02-23 동국대학교 산학협력단 Apparatus and system of monitoring emergency situation
JP2014097785A (en) * 2012-10-22 2014-05-29 Boeing Co Water area management system
CN105719432A (en) * 2016-03-21 2016-06-29 郑州华信学院 Swimming protecting device
CN110706448A (en) * 2019-08-29 2020-01-17 奇酷互联网络科技（深圳）有限公司 Safety monitoring method and device, storage medium and intelligent terminal

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006069514A (en) * 2004-09-03 2006-03-16 Toshiba Personal Computer System Kk Rescue system, rescue method, and program for swimmers in swimming pool using network
JP4552124B2 (en) * 2004-09-03 2010-09-29 東芝パソコンシステム株式会社 A swimmer rescue system in a swimming pool by network
WO2008016679A2 (en) * 2006-08-02 2008-02-07 24Eight Llc Wireless detection and alarm system for monitoring human falls and entries into swimming pools by using three dimensional acceleration and wireless link energy data method and apparatus
WO2008016679A3 (en) * 2006-08-02 2008-04-03 24Eight Llc Wireless detection and alarm system for monitoring human falls and entries into swimming pools by using three dimensional acceleration and wireless link energy data method and apparatus
KR101015998B1 (en) * 2008-07-04 2011-02-23 동국대학교 산학협력단 Apparatus and system of monitoring emergency situation
JP2014097785A (en) * 2012-10-22 2014-05-29 Boeing Co Water area management system
CN105719432A (en) * 2016-03-21 2016-06-29 郑州华信学院 Swimming protecting device
CN110706448A (en) * 2019-08-29 2020-01-17 奇酷互联网络科技（深圳）有限公司 Safety monitoring method and device, storage medium and intelligent terminal

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