JPH0627259A - Automatically measuring stop watch for swimming - Google Patents

Abstract

PURPOSE:To provide a stop watch the counter of which is turned on or off when a swimmer wearing the watch assumes a flat posture or touches bottom and displays counted results so that the swimmer can measure his swimming duration. CONSTITUTION:A state detection circuit 1 controls a time counter circuit 3 by making switching operations for turning on or off the circuit 3 in accordance with the lying or standing posture of a swimmer. The circuit 3 counts up the clock of an oscillator 2 in the unit of, for example, 1 second and displays counted results on a display 5 through a display driver 4. A resetting terminal 6 is used at the time of resetting the circuit 3 to '0' second. The swimmer attach this stop watch to the waist section of his swimming suit and press a reset button. When he starts swimming, his body becomes flat and the counter 3 starts counting. When he touches bottom, his body becomes vertical and the counter 3 stops counting. When the counter repeats such operations, only the swimming time is integrated and displayed on the display 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stopwatch for automatically detecting and measuring only a swimming time during swimming.

[0002]

2. Description of the Related Art As a normal stopwatch, there is a watch having a start button and a stop button. It divides the exact clock from the crystal oscillator to produce a pulse of one cycle per second, and the time counter counts this pulse. This time counter counts one pulse for one second, and counts 60 times for one minute carry to display on a display (usually using a liquid crystal display). The start and stop buttons are toggle type. When you press it first, it starts counting, and when you press it again, it stops counting. This is used by the measurer on land by pressing the button with the start command to the person to be measured, which the swimmer can wear on his body when swimming and can automatically measure only the swimming time. Was never before.

[0003]

This has the following drawbacks. (1) In addition to the person who wishes to make a measurement, a measurer is required separately. (2) It is necessary for the measurer to press the button with his or her finger to control the measurement start and stop. (3) It is not possible to automatically detect and measure the state of swimming. The present invention aims to provide an automatic measuring stopwatch for swimming that avoids these drawbacks.

[0004]

According to the first aspect of the present invention, there is provided a state detection means which has a different detection result depending on whether it is in a horizontal state or a vertical state, and the detection result of the state detection means. Control means for controlling the clock counter,
This is achieved by an automatic measuring stopwatch for swimming, which is provided with a display means for displaying the counting result of the counter.

[0005]

[Function] An automatic measurement stopwatch for swimming is attached to the waist of the swimsuit by a clip type or a band, etc., and enters the pool and presses the reset button. When you start swimming, your body becomes horizontal, and the counter of the automatic measurement stopwatch for swimming starts counting. When you are resting in the pool due to waiting in line, etc., your body is standing, so the counter stops counting and becomes the hold state at the previous value. If you repeat the above, only swimming time will be added.

[0006]

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The examples described below are
Since it is a preferred specific example of the present invention, various technically preferable limitations are attached, but the scope of the present invention is, unless otherwise stated to limit the present invention, in the following description.
It is not limited to these modes.

FIG. 1 shows a preferred embodiment of an automatic measuring stopwatch for swimming according to the present invention. The output of the state detection circuit 1 of FIG. 1 is connected to the time counter circuit 3,
The switch operation of turning on and off is performed according to the horizontal or vertical state, and the counting operation of the time counter circuit 3 is controlled. The time counter circuit 3 counts up the clock of the oscillator 2 in units of, for example, one second, and the count result is displayed on the display 5 by the display driver 4. The reset terminal 6 is for adjusting the count value in the time counter circuit 3 to 0 seconds.

FIGS. 2 and 3 show the structure of the state detection switch 11 used in the state detection circuit 1. The conductive tube 7 and the conductive tube 8 have one bottom surface closed.
Are bonded via an insulator 9, and conductive particles 10 are contained therein. The conductive particles 10 move fluidly in the cylinder, and electrically switch or disconnect the conductive cylinder 7 and the conductive cylinder 8 from each other. Figure 2
Is in the horizontal state, and the switch operation is ON. FIG. 3 is in the vertical state, and the switch operation is OFF.

FIG. 4 shows a circuit for concretely controlling the time counter by the above state detection switch 11. Here, the state detection switch 11 is connected between the power source and the ground via a resistor, and obtains H and L detection pulses such as P1. The pulse of P2 is obtained by inverting P1 and ANDed with the divided pulse P3 (pulse of one cycle per second) from the crystal oscillator and output as the pulse of P4 to the time counter. FIG. 5 is a waveform diagram corresponding to FIG. 4, and the counter pulse is obtained only in the horizontal state. The time counter consists of a second digit counter, a minute digit counter, and a time digit counter.One pulse is output to the minute digit counter when the second digit counter counts 60 times, and a pulse is output to the hour digit counter when the minute digit counter counts 60 times. Is output, and the count result is converted for display, output to the display driver 4 and displayed on the display.

The present invention having the above-mentioned structure is used by being put in a waterproof case. The waterproof case may be, for example, a stainless steel case in which a mounting portion of the back cover or the button is of a screw lock type, and a packing is sandwiched between the glass of the display portion and another mounting portion. When actually using it, attach the automatic measuring stopwatch for swimming to the swimsuit, enter the swimming pool, and press the reset button. When you start swimming, your body becomes horizontal, the state detection switch 11 turns on, and the counter of the automatic measurement stopwatch for swimming starts counting.
When you are resting in the pool due to waiting in line, etc., your body is standing, so the counter stops counting and becomes the hold state at the previous value. When the above is repeated, only the swimming time is added.

The present invention is not limited to the above embodiment. For example, instead of controlling the time counter circuit 3 by the output of the state detection circuit 1 of FIG.
May be controlled. Further, although the conductive particles 10 are used in FIGS. 2 and 3, the conductive particles 10 are not limited to this, and may be, for example, a conductive liquid. The shapes and sizes of the conductive cylinder 7 and the conductive cylinder 8 may be independent of each other. Further, although the result of the integrated count is displayed as time, it may be provided with a function of converting the result into a distance and displaying it.

Although not shown in the figure, the value of the previous count may be held regardless of the horizontal or vertical state by attaching a forced hold button. Furthermore, instead of displaying the swimming time, a mode for measuring the number of turns, that is, the number of changes from the horizontal state to the vertical state may be set for a person who travels back and forth in the pool many times. It should be noted that the state detection switch 11 is not limited to the automatic measurement stopwatch for swimming, but may be applied to other falls detection switch or the like.

[0013]

As described above, according to the present invention, since the swimming time is automatically detected and measured, it is not necessary to control the start and stop from the outside, and the measuring person is not separately required. . Further, since the time and number of swims can be accurately grasped, it becomes easy to set a target for enhancing the swimming ability.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of an automatic measuring stopwatch for swimming according to the present invention.

FIG. 2 is a diagram showing a structure of a state detection switch of the present invention in a horizontal state.

FIG. 3 is a diagram showing a structure of a state detection switch of the present invention in a vertical state.

FIG. 4 is a diagram showing a circuit for controlling a time counter of the present invention.

FIG. 5 is a diagram showing each waveform corresponding to FIG.

[Explanation of symbols]

 1 state detection circuit 2 oscillator 3 time counter circuit 4 indicator driver 5 indicator 6 reset terminal 7 conductive tube 8 conductive tube 9 insulator 10 conductive particle 11 state detection switch P1 state detection pulse P2 inverted output P3 oscillator output P4 AND output

Claims (2)

[Claims] 1. A state detection means having a different detection result depending on whether it is in a horizontal state or a vertical state, a control means for controlling a counter of a timepiece based on the detection result of the state detection means, and the counter. An automatic measurement stopwatch for swimming, comprising: a display means for displaying the count result of. 2. The state detecting means is characterized in that two conductive cylinders, one side of which is closed, are connected through an insulator, and conductive particles are contained in the connected cylinders. The automatic measurement stopwatch for swimming according to claim 1.