JP5571904B2 - Energy consumption notification device - Google Patents

Energy consumption notification device Download PDF

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JP5571904B2
JP5571904B2 JP2009098373A JP2009098373A JP5571904B2 JP 5571904 B2 JP5571904 B2 JP 5571904B2 JP 2009098373 A JP2009098373 A JP 2009098373A JP 2009098373 A JP2009098373 A JP 2009098373A JP 5571904 B2 JP5571904 B2 JP 5571904B2
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energy consumption
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裕嗣 仰木
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Keio University
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Description

本発明は、歩数計と同じように、身体に装着して水中運動時のエネルギー消費量を報知するエネルギー消費量報知装置に関する。   The present invention relates to an energy consumption notification device that, like a pedometer, is worn on the body and notifies the energy consumption during underwater exercise.

従来の水中運動時のエネルギー消費量報知装置として、圧力センサを身体に装着して、水中運動時の体動によって生じる水圧を測定して、この水圧を時間積分しエネルギー消費量に換算して表示するものが知られている(例えば、特許文献1参照。)。   As a conventional energy consumption notification device during underwater exercise, a pressure sensor is attached to the body, the water pressure caused by body movement during underwater exercise is measured, and this water pressure is integrated over time and converted into energy consumption for display. Is known (for example, see Patent Document 1).

また、加速度計によって身体の上下、前後、左右方向の加速度を測定して、その加速度の絶対値(大きさ)を時間積分し水中歩行時の身体活動量を推定することも知られている(例えば、非特許文献1参照。)。   It is also known to measure the body's vertical, longitudinal, and lateral acceleration with an accelerometer and to estimate the amount of physical activity during walking underwater by integrating the absolute value (magnitude) of the acceleration over time ( For example, refer nonpatent literature 1.).

特開2003−339682号公報JP 2003-339682 A

清水潤他、「加速度計を用いた水中歩行時の運動強度推定とその評価」第17回日本バイオメカニクス学会大会論集、2002年9月13日、216EJun Shimizu et al., “Estimation of exercise intensity during underwater walking using an accelerometer and its evaluation” Proceedings of the 17th Annual Meeting of the Biomechanics Society of Japan, September 13, 2002, 216E

しかし、従来のエネルギー消費量報知装置は、いずれも正確にエネルギー消費量を報知するものとは言えず、その信頼性に課題があった。   However, none of the conventional energy consumption notification devices can accurately report the energy consumption, and there is a problem in reliability.

本発明は、上記問題点に鑑み、簡易な構成であるにもかかわらず、信頼性に優れるエネルギー消費量報知装置を提供することを目的とする。   In view of the above problems, an object of the present invention is to provide an energy consumption notification device that is excellent in reliability despite a simple configuration.

本発明のエネルギー消費量報知装置は、(A)子機から子機が存在する位置に関する情報を電波によって受信する第1受信手段と、該子機位置の履歴から子機の速度を計算し、さらに該子機速度から使用者のエネルギー消費量を計算するエネルギー消費量計算手段と、該エネルギー消費量をプール周辺の複数の既知位置から子機に電波によって送信する第1送信手段とを有する親機と、(B)前記エネルギー消費量を親機の複数の既知位置からの電波信号として受信する第2受信手段と、該エネルギー消費量を使用者に報知する報知手段と、前記受信手段によって受信した複数の電波のそれぞれの強度からプール内の子機の存在する位置を演算計測する位置計測手段と、該子機位置に関する情報を電波によって親機に送信する第2送信手段とを有し使用者に装着される子機とを備えることを特徴とする。   The energy consumption notification device of the present invention calculates (A) the first receiving means for receiving information on the position where the child device is present from the child device by radio waves, and calculates the speed of the child device from the history of the child device position, Furthermore, an energy consumption calculation means for calculating the user's energy consumption from the slave device speed, and a first transmission means for transmitting the energy consumption from a plurality of known positions around the pool to the slave device by radio waves. And (B) second receiving means for receiving the energy consumption as radio signals from a plurality of known positions of the parent machine, notification means for notifying the user of the energy consumption, and reception by the receiving means Position measuring means for calculating and measuring the position of the slave unit in the pool from the intensity of each of the plurality of radio waves, and second transmission means for transmitting information related to the slave unit position to the master unit by radio wave Characterized in that it comprises a handset that is worn by the user has.

また、本発明のエネルギー消費量報知装置は、(A)子機から子機が存在する位置に関する情報及び子機の加速度に関する情報を電波によって受信する第1受信手段と、該子機位置の履歴から子機の速度を計算し、さらに該子機速度及び子機加速度から使用者のエネルギー消費量を計算するエネルギー消費量計算手段と、該エネルギー消費量をプール周辺の複数の既知位置から子機に電波によって送信する第1送信手段とを有する親機と、(B)前記エネルギー消費量を親機の複数の既知位置からの電波信号として受信する第2受信手段と、該エネルギー消費量を使用者に報知する報知手段と、前記受信手段によって受信した複数の電波のそれぞれの強度からプール内の子機の存在する位置を演算計測する位置計測手段と、子機の加速度を測定する加速度センサと、前記子機位置に関する情報及び前記子機加速度に関する情報を電波によって親機に送信する第2送信手段とを有し使用者に装着される子機とを備えることを特徴とする。   In addition, the energy consumption notification device of the present invention includes (A) first receiving means for receiving, from a slave unit, information relating to the location of the slave unit and information relating to the acceleration of the slave unit by radio waves, and history of the slave unit position. Energy consumption calculating means for calculating the speed of the slave unit from the slave unit and further calculating the user's energy consumption from the slave unit speed and the slave unit acceleration, and the energy consumption from the plurality of known positions around the pool A base unit having a first transmission means for transmitting to the base station by radio waves, (B) second receiving means for receiving the energy consumption as radio signals from a plurality of known positions of the base unit, and using the energy consumption Notification means for informing the user, position measurement means for calculating and measuring the position of the slave unit in the pool from the intensity of each of the plurality of radio waves received by the reception unit, and measuring the acceleration of the slave unit. And a slave unit that is attached to a user and includes a second transmission unit that transmits information on the slave unit position and information on the slave unit acceleration to the master unit by radio waves. .

また、前記親機は、子機からの電波が途絶えたことを検知して警報する警報手段を更に有することで、使用者が転倒したなどの事故を報知することができる。   Further, the master unit can further notify an accident such as a user having fallen by further having an alarm means for detecting and alarming that the radio wave from the slave unit has been interrupted.

本発明によれば、エネルギー消費量などを送信する電波の強度から子機の位置を計測するため、簡易な構成であるにもかかわらず、信頼性に優れるエネルギー消費量報知装置を提供することができる。   According to the present invention, in order to measure the position of the slave unit from the intensity of a radio wave that transmits energy consumption and the like, it is possible to provide an energy consumption notification device that is excellent in reliability despite a simple configuration. it can.

本発明の実施例1によるエネルギー消費量報知装置の構成を説明する図である。It is a figure explaining the structure of the energy consumption alerting | reporting apparatus by Example 1 of this invention. 本発明の実施例2によるエネルギー消費量報知装置の構成を説明する図である。It is a figure explaining the structure of the energy consumption alerting | reporting apparatus by Example 2 of this invention. 推定式による推定値と酸素消費量を実測した実測値との関係を示す散布図である。It is a scatter diagram which shows the relationship between the estimated value by an estimation formula, and the actual value which measured oxygen consumption. 男性の個々の試技における、推定式による推定値と酸素消費量の実測値との関係を示す図である。It is a figure which shows the relationship between the estimated value by an estimation formula, and the measured value of oxygen consumption in each male trial. 女性の個々の試技における、推定式による推定値と酸素消費量の実測値との関係を示す図である。It is a figure which shows the relationship between the estimated value by an estimation formula, and the measured value of oxygen consumption in each female trial. 本実施例の動作を説明する図である。It is a figure explaining the operation | movement of a present Example.

以下、添付図面を参照しながら本発明を実施するための形態について詳細に説明する。   DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings.

図1は、本発明の実施例1によるエネルギー消費量報知装置の構成を説明する図である。本実施例のエネルギー消費量報知装置は、親機100と子機200とから成る。親機100は、送受信器11、アンテナ12、計算器13、運動履歴DB14、表示器15、及び警報器16から成る。子機200は、アンテナ17、送受信器18、位置計測器19、加速度センサ20、及び報知器21から成る。親機100の送受信器11と子機200の送受信器18とはそれぞれに接続されているアンテナ12及びアンテナ17を介して相互に電波による通信を行う。親機100の送受信器11は、プール周辺の適当な既知の位置に配置されている複数のアンテナ12を介して、プール内にいる使用者に装着される子機200にアンテナ12毎に異なる電波を使用して子機200に後述する使用者のエネルギー消費量を送信する。周波数を異ならせたり、又は色々な変調をして、電波を異ならせることができる。子機200の送受信器18は親機100からエネルギー消費量を電波によって受信して、位置計測器19は、その電波の強度からそれぞれのアンテナ12までの距離を計算し子機200のプール内の2次元平面上の位置を演算して計測する。その原理は三角形の3辺の長さによって三角形が定まることによる。加速度センサ20は、xyzの3軸方向の3つの加速度センサを有し、それらの3軸方向の加速度から使用者の動きの加速度の絶対値(大きさ)を求める。送受信器18は、位置計測器19で計測した子機200の位置、及び加速度センサ20で求めた使用者の動きの加速度の絶対値を親機100の送受信器11に送信する。親機100の計算器13は、送受信器11が受信した子機200の位置及び使用者の動きの加速度の絶対値を運動履歴DB14に記録し、その子機200の位置の履歴から子機200の速度を演算し、さらに使用者の動きの加速度の絶対値とから使用者のエネルギー消費量を計算する。その原理はシミュレーションによる。すなわち、何人かの被験者に本実施例の子機200を装着して水中歩行させ、速度及び加速度を測定して記録し、その際の被験者の酸素消費量を測定して、エネルギー消費量との相関をとる。その際に、エネルギー消費量は、被験者の(1).性別、(2).年齢、(3).身長、(4).体重、(5).プール水深、(6).プール床面のすべりを変数とする関数であることを加味すると更に正確にシミュレートすることができる。   FIG. 1 is a diagram illustrating a configuration of an energy consumption notification device according to a first embodiment of the present invention. The energy consumption notification device according to the present embodiment includes a parent device 100 and a child device 200. The base unit 100 includes a transceiver 11, an antenna 12, a calculator 13, an exercise history DB 14, a display 15, and an alarm 16. The subunit | mobile_unit 200 consists of the antenna 17, the transmitter / receiver 18, the position measuring device 19, the acceleration sensor 20, and the alerting | reporting device 21. FIG. The transmitter / receiver 11 of the parent device 100 and the transmitter / receiver 18 of the child device 200 communicate with each other by radio waves via the antenna 12 and the antenna 17 connected to each other. The transmitter / receiver 11 of the master unit 100 receives different radio waves for each antenna 12 from the slave unit 200 attached to the user in the pool via a plurality of antennas 12 arranged at appropriate known positions around the pool. Is used to transmit the energy consumption of the user, which will be described later, to the slave unit 200. The radio waves can be made different by changing the frequency or performing various modulations. The transmitter / receiver 18 of the child device 200 receives energy consumption from the parent device 100 by radio waves, and the position measuring device 19 calculates the distances to the respective antennas 12 from the intensity of the radio waves and calculates the distance in the pool of the child device 200. The position on the two-dimensional plane is calculated and measured. The principle is that the triangle is determined by the length of the three sides of the triangle. The acceleration sensor 20 includes three acceleration sensors in the xyz triaxial directions, and obtains the absolute value (magnitude) of the user's motion acceleration from the accelerations in the triaxial directions. The transceiver 18 transmits the position of the slave unit 200 measured by the position measuring unit 19 and the absolute value of the acceleration of the movement of the user obtained by the acceleration sensor 20 to the transceiver 11 of the base unit 100. The calculator 13 of the parent device 100 records the position of the child device 200 and the absolute value of the acceleration of the movement of the user received by the transmitter / receiver 11 in the movement history DB 14, and from the history of the position of the child device 200, The speed is calculated, and the user's energy consumption is calculated from the absolute value of the acceleration of the user's movement. The principle is based on simulation. That is, several subjects wear the handset 200 of this embodiment, walk underwater, measure and record the speed and acceleration, measure the subject's oxygen consumption at that time, Take correlation. At that time, energy consumption of the subjects was (1) .sex, (2) .age, (3) .height, (4) .weight, (5) .pool depth, (6) .pool floor surface Considering that it is a function with slip as a variable, it can be simulated more accurately.

具体的には、下記の重回帰方程式(1)の各重回帰係数α1、α2、α3、α4を最小二乗法によって求める。
Y=α1X1+α2X2+α3X3+α4 (1)
ただし、
Y:総酸素消費量
X1:安静時酸素消費量(人により異なるが経時変化はない)
X2:頭部の加速度(移動とは独立に体を動かしたことによる酸素消費量を推定)
X3:速度**3(水中移動による酸素消費量が移動速度の3乗に比例するため)
α1、α2、α3、α4:重回帰係数
Specifically, the multiple regression coefficients α1, α2, α3, and α4 of the following multiple regression equation (1) are obtained by the method of least squares.
Y = α1X1 + α2X2 + α3X3 + α4 (1)
However,
Y: Total oxygen consumption X1: Resting oxygen consumption (depending on the person, but no change over time)
X2: Head acceleration (estimated oxygen consumption due to body movement independent of movement)
X3: Speed ** 3 (because the oxygen consumption by moving in water is proportional to the cube of the moving speed)
α1, α2, α3, α4: Multiple regression coefficients

被験者の(1).性別、(2).年齢、(3).身長、(4).体重は、X1に反映させる。例えば日本人の性別、年齢別の基礎代謝量及び性別、年齢別の基準身長、基準体重が厚生労働省から公表されているので、これを参考にして安静時酸素消費量X1を推定することができる。   The subject's (1) .sex, (2) .age, (3) .height, (4) .weight is reflected in X1. For example, since the Ministry of Health, Labor and Welfare has published the Japanese basic sex and age-based basal metabolic rate and sex, age-specific standard height and standard weight, the resting oxygen consumption X1 can be estimated with reference to this. .

移動とは独立に自分の体を動かすために用いられる酸素消費量に相当する値として、頭部に装着した子機200の上下軸加速度、前後軸加速度の絶対値をそれぞれ二乗し、足し合わせ、5秒間累積して、その平均値をX2とする。   As values corresponding to oxygen consumption used to move one's body independently of movement, the absolute values of the vertical axis acceleration and the longitudinal axis acceleration of the child device 200 attached to the head are squared and added together, Accumulate for 5 seconds and let the average value be X2.

自分を移動させるための酸素消費量について、まず、水特有の抵抗の特性から、抗力Dは、
D=(1/2)*Cd*S*ro*v**2
ただし、
Cd:抗力係数
S:人の前面投影面積
ro:水の密度=1.0
v:人の移動速度
と計算される。前面投影面積Sは日本人の体表面積計算という知見をもとに、計算し、この全面積の半分が前方と考え、さらに身長と水深との比例した分だけが水の中に没しているとして求める。Cdは知り得ないので、これを含めて係数を求める。さらに、この抗力Dに速度vを掛けてパワー(単位時間あたりのエネルギー)を求める。すなわち、(1/2)*S*ro*v**3に相当する値が、X3となる。Cdを合わせた係数α3を最小二乗法で求める。
About oxygen consumption for moving oneself, first, from the characteristic of resistance specific to water, drag D is
D = (1/2) * Cd * S * ro * v ** 2
However,
Cd: Drag coefficient S: Front projected area of human ro: Water density = 1.0
v: Calculated as the moving speed of a person. The front projection area S is calculated based on the knowledge of Japanese body surface area calculation, half of this total area is considered to be the front, and only the proportion of height and depth is submerged in the water. Asking. Since Cd cannot be known, the coefficient including this is obtained. Furthermore, the power (energy per unit time) is obtained by multiplying the drag D by the speed v. That is, a value corresponding to (1/2) * S * ro * v ** 3 is X3. The coefficient α3 combined with Cd is obtained by the method of least squares.

図3は、推定式による推定値と酸素消費量を実測した実測値との関係を示す散布図である。図3(a)は男性29名(27歳から73歳)が、図3(b)は女性21名(33歳から71歳)が、屋内プール(17.2m×1.8m、水深1.1m、水温30度)で分速25mから分速40mまでの速度によって水中歩行を行った際の実測値と推定値を示している。得られた推定式における推定精度は偏相関係数r=0.89(男性)、r=0.88(女性)となり、高い精度での推定が可能である。   FIG. 3 is a scatter diagram showing the relationship between the estimated value based on the estimation formula and the actually measured value obtained by actually measuring the oxygen consumption. Fig. 3 (a) shows 29 men (27 to 73 years old) and Fig. 3 (b) shows 21 women (33 to 71 years old) indoor pool (17.2m x 1.8m, depth 1. The actual measurement value and the estimated value when walking underwater at a speed from 25 m / min to 40 m / min at 1 m and a water temperature of 30 degrees) are shown. The estimation accuracy in the obtained estimation equation is the partial correlation coefficient r = 0.89 (male) and r = 0.88 (female), and estimation with high accuracy is possible.

図4及び図5は、個々の試技における、推定式による推定値と酸素消費量の実測値との関係を示す図である。図4は、男性の場合の40の試技について示し、図5は、女性の場合の40の試技について示す。これらから、加速度積分値と速度によって酸素消費量を高い精度によって推定することが可能であることが分かる。すなわち、本発明によって信頼性のあるエネルギー消費量が求められることが裏付けられる。   4 and 5 are diagrams showing the relationship between the estimated value based on the estimation formula and the actually measured value of oxygen consumption in each trial technique. FIG. 4 shows 40 trials in the case of men, and FIG. 5 shows 40 trials in the case of women. From these, it can be seen that the oxygen consumption can be estimated with high accuracy by the acceleration integral value and the speed. That is, it is supported by the present invention that a reliable energy consumption is required.

図1に戻って、運動履歴DB14は、使用者の過去の水中歩行時のエネルギー消費量を記録しておき、表示器15は、必要に応じて随時、この過去のエネルギー消費量を表示する。また、警報器16は、子機200がプール内に存在していて突然、アンテナ12による電波の受信が途絶えた時に子機200が水没、すなわち、使用者がプール内で転倒したと判断し、音又は光によって警報を発する。さらに、送受信器11は、歩行中にその時々のエネルギー消費量を子機200に送信する。子機200は送受信器18によって親機100から受信したエネルギー消費量を報知器21によって使用者に知らせる。これは音声によって骨伝導で知らせると、歩行中に特定の使用者にだけ知らせることができるので適する。これにより、使用者は子機200を装着して水中歩行中にその時々のエネルギー消費量を知ることができる。本実施例では特に、親機100から子機200にエネルギー消費量を送信する電波の強度を子機200が検出して子機200の位置を計測するので、簡易な構成によって正確なエネルギー消費量を使用者に知らせることができる。   Returning to FIG. 1, the exercise history DB 14 records the energy consumption amount of the user when walking underwater in the past, and the display 15 displays the past energy consumption amount as needed. The alarm device 16 determines that the handset 200 is submerged when the handset 200 exists in the pool and the reception of the radio wave by the antenna 12 is suddenly stopped, that is, the user has fallen in the pool, Sound an alarm by sound or light. Furthermore, the transceiver 11 transmits the energy consumption at that time to the subunit | mobile_unit 200 during a walk. The subunit | mobile_unit 200 notifies a user of the energy consumption received from the main | base station 100 with the transmitter / receiver 18 by the alerting | reporting device 21. FIG. This is suitable if the bone conduction is informed by voice because only a specific user can be notified during walking. Thereby, the user can know the energy consumption at that time while wearing the subunit | mobile_unit 200 and walking underwater. Particularly in the present embodiment, since the slave unit 200 detects the intensity of the radio wave that transmits the energy consumption amount from the master unit 100 to the slave unit 200 and measures the position of the slave unit 200, an accurate energy consumption amount can be obtained with a simple configuration. Can be notified to the user.

子機200はゴーグルの形態をとることができる。通信には、ZigBee(登録商標)端末などの市販の製品を使用することができる。   The handset 200 can take the form of goggles. A commercially available product such as a ZigBee (registered trademark) terminal can be used for communication.

図6は、本実施例の動作を説明する図である。計測開始して(ステップS1)、まず、移動軌跡中のプール内に入った地点を探索して(x0,y0)とし(ステップS2)、使用者がその地点(x0,y0)にいた時刻を運動開始時刻とする(ステップS3)。それから現在位置までの軌跡データを取得し(ステップS4)、プール長手方向のみを考えて速度ベクトルを算出し(ステップS5)、その速度ベクトルを速さ(絶対値)に変換して(ステップS6)、この速さ(m/min)を本人の運動状態変数のひとつとする(ステップS7)。また、一定時間幅τ(sec)における加速度を取得し(ステップS8)、極端な値を除去するフィルタリング後に、この加速度を全波整流して絶対値化して(ステップS9)、T(sec)(T>τ)内の波形を積分して加速度の積分値とする(ステップS10)。そして、これら速さ及び加速度積分値を運動時変数として(ステップS11)、一定時間おきにその運動時変数及び本人個人変数((1).性別、(2).年齢、(3).身長、(4).体重など)を推定式にあてはめてエネルギー消費量を算出する(ステップS12)。   FIG. 6 is a diagram for explaining the operation of this embodiment. The measurement is started (step S1). First, a point that has entered the pool in the movement locus is searched for (x0, y0) (step S2), and the time when the user was at the point (x0, y0) is determined. The exercise start time is set (step S3). Then, the trajectory data up to the current position is acquired (step S4), the speed vector is calculated considering only the pool longitudinal direction (step S5), and the speed vector is converted into the speed (absolute value) (step S6). The speed (m / min) is set as one of the movement state variables of the person (step S7). In addition, an acceleration in a certain time width τ (sec) is acquired (step S8), and after filtering to remove an extreme value, this acceleration is full-wave rectified to an absolute value (step S9), and T (sec) ( The waveform within T> τ) is integrated to obtain an integrated value of acceleration (step S10). Then, these speed and acceleration integral values are set as movement time variables (step S11), and the movement time variables and personal variables ((1). Gender, (2). Age, (3). Height, (4). Weight etc. is applied to the estimation formula to calculate the energy consumption (step S12).

図2は、本発明の実施例2によるエネルギー消費量報知装置の構成を説明する図である。本実施例のエネルギー消費量報知装置は、親機100と子機200とから成る。親機100は、送受信器11、アンテナ12、計算器13、運動履歴DB14、表示器15、及び警報器16から成る。子機200は、アンテナ17、送受信器18、加速度センサ20、及び報知器21から成る。本実施例では、子機200が位置計測するのではなく、親機100の送受信器11が子機200から子機200の加速度を電波で受信して、計算器13が、その電波の強度から子機200の位置を演算し計測する点が実施例1と異なる。   FIG. 2 is a diagram illustrating the configuration of the energy consumption notification device according to the second embodiment of the present invention. The energy consumption notification device according to the present embodiment includes a parent device 100 and a child device 200. The base unit 100 includes a transceiver 11, an antenna 12, a calculator 13, an exercise history DB 14, a display 15, and an alarm 16. The subunit | mobile_unit 200 consists of the antenna 17, the transmitter / receiver 18, the acceleration sensor 20, and the alerting | reporting device 21. FIG. In this embodiment, the position of the slave unit 200 is not measured, but the transmitter / receiver 11 of the master unit 100 receives the acceleration of the slave unit 200 from the slave unit 200 by radio waves, and the calculator 13 determines the intensity of the radio waves. The point which calculates and measures the position of the subunit | mobile_unit 200 differs from Example 1. FIG.

なお、本発明は上記実施例に限定されるものではない。加速度は必ずしも考慮しなくても、速度だけで十分に正確にエネルギー消費量を求めることもできる。この場合、加速度センサ20は必要ない。警報器16は必ずしも必要ない。   In addition, this invention is not limited to the said Example. Even if the acceleration is not necessarily taken into account, the energy consumption can be obtained sufficiently accurately only by the speed. In this case, the acceleration sensor 20 is not necessary. The alarm 16 is not always necessary.

11 送受信器
12 アンテナ
13 計算器
14 運動履歴DB
15 表示器
16 警報器
17 アンテナ
18 送受信器
19 位置計測器
20 加速度センサ
21 報知器
100 親機
200 子機
11 Transmitter / Receiver 12 Antenna 13 Calculator 14 Exercise History DB
DESCRIPTION OF SYMBOLS 15 Display device 16 Alarm device 17 Antenna 18 Transmitter / receiver 19 Position measuring device 20 Acceleration sensor 21 Alarm device 100 Master device 200 Child device

Claims (3)

(A)
子機から子機が存在する位置に関する情報を電波によって受信する第1受信手段と、
該子機位置の履歴から子機の速度を計算し、さらに該子機速度から使用者のエネルギー消費量を計算するエネルギー消費量計算手段と、
該エネルギー消費量をプール周辺の複数の既知位置から子機に電波によって送信する第1送信手段と
を有する親機と、
(B)
前記エネルギー消費量を親機の複数の既知位置からの電波信号として受信する第2受信手段と、
該エネルギー消費量を使用者に報知する報知手段と、
前記受信手段によって受信した複数の電波のそれぞれの強度からプール内の子機の存在する位置を演算計測する位置計測手段と、
該子機位置に関する情報を電波によって親機に送信する第2送信手段と
を有し使用者に装着される子機と
を備えることを特徴とするエネルギー消費量報知装置。
(A)
First receiving means for receiving information about a position where the slave is present from the slave by radio waves;
Energy consumption calculating means for calculating the speed of the slave unit from the history of the slave unit position, and further calculating the energy consumption of the user from the slave unit speed;
A master unit having first transmission means for transmitting the energy consumption amount from a plurality of known positions around the pool to the slave unit by radio waves;
(B)
Second receiving means for receiving the energy consumption as radio signals from a plurality of known positions of the master unit;
An informing means for informing the user of the energy consumption;
Position measuring means for calculating and measuring the position of the child device in the pool from the intensity of each of the plurality of radio waves received by the receiving means;
An energy consumption notification device, comprising: a slave unit that has second transmission means for transmitting information related to the location of the slave unit to the master unit by radio waves, and is attached to a user.
(A)
子機から子機が存在する位置に関する情報及び子機の加速度に関する情報を電波によって受信する第1受信手段と、
該子機位置の履歴から子機の速度を計算し、さらに該子機速度及び子機加速度から使用者のエネルギー消費量を計算するエネルギー消費量計算手段と、
該エネルギー消費量をプール周辺の複数の既知位置から子機に電波によって送信する第1送信手段と
を有する親機と、
(B)
前記エネルギー消費量を親機の複数の既知位置からの電波信号として受信する第2受信手段と、
該エネルギー消費量を使用者に報知する報知手段と、
前記受信手段によって受信した複数の電波のそれぞれの強度からプール内の子機の存在する位置を演算計測する位置計測手段と、
子機の加速度を測定する加速度センサと、
前記子機位置に関する情報及び前記子機加速度に関する情報を電波によって親機に送信する第2送信手段と
を有し使用者に装着される子機と
を備えることを特徴とするエネルギー消費量報知装置。
(A)
First receiving means for receiving, from a slave unit, information relating to a position where the slave unit is present and information relating to acceleration of the slave unit by radio waves;
Energy consumption calculating means for calculating the speed of the slave unit from the history of the slave unit position and further calculating the energy consumption of the user from the slave unit speed and the slave unit acceleration;
A master unit having first transmission means for transmitting the energy consumption amount from a plurality of known positions around the pool to the slave unit by radio waves;
(B)
Second receiving means for receiving the energy consumption as radio signals from a plurality of known positions of the master unit;
An informing means for informing the user of the energy consumption;
Position measuring means for calculating and measuring the position of the child device in the pool from the intensity of each of the plurality of radio waves received by the receiving means;
An acceleration sensor for measuring the acceleration of the slave unit;
An energy consumption notification device comprising: a slave unit that has second transmission means for transmitting information on the slave unit position and information on the slave unit acceleration to the master unit by radio waves, and is mounted on a user. .
前記親機は、子機からの電波が途絶えたことを検知して警報する警報手段を更に有することを特徴とする請求項1又は2記載のエネルギー消費量報知装置。
The energy consumption notification device according to claim 1 or 2 , wherein the parent device further includes warning means for detecting and alarming that the radio wave from the child device has been interrupted.
JP2009098373A 2009-04-14 2009-04-14 Energy consumption notification device Expired - Fee Related JP5571904B2 (en)

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