JPH027528Y2 - - Google Patents

Description

[Detailed explanation of the idea] (b) Industrial application fields The present invention relates to a battery-powered pulse meter.

(B) Prior art This type of pulse meter not only knows whether the user's pulse rate is within the normal range, but also uses the fact that the pulse rate increases when the user becomes fatigued to detect whether the user is overexerting or not. This device allows you to easily know when you are overworked, and is powered by a battery to make it portable. However, the pulse detection circuit installed in such a pulse meter, especially the pulse sensor, uses elements with high power consumption such as tungsten lamps, and if the pulse detection circuit is always on, the power consumption will be reduced. There is a risk that the battery will become unusable as the battery becomes larger. Therefore, for example, as shown in Japanese Patent Publication No. 57-2332, it is conceivable to provide a pulse measurement sensing mechanism and move the mechanism to turn on and off the power, but this would have a complicated configuration.
Manufacturing costs will increase.

(c) Purpose of the invention The invention has a simple configuration, and the power supply to the pulse detection circuit is turned off except when necessary, thereby minimizing power consumption and extending battery usage time. It is.

(d) Structure of the invention The pulse meter of the invention includes a pulse detection circuit, an arithmetic element that calculates the pulse rate based on the detection output from the detection circuit,
an indicator that displays the pulse rate output from the arithmetic element;
switching the arithmetic element between an on mode, an off mode, and a stop mode, and turning on the pulse detection circuit, the arithmetic element, and the display in conjunction with the on mode; and in conjunction with the off mode, the pulse detection circuit; It is characterized by a changeover switch that turns off the arithmetic element and display and turns on only the arithmetic element and display in conjunction with the stop mode, and in the stop mode, the power consumption is in an ultra-low consumption state. It is possible to maintain the display on the display and the set upper and lower limit values of the pulse rate.

(e) Embodiment 1 is a pulse meter, which electrically detects the user's pulse pulses detected by the pulse sensor 2 by holding the clip-type pulse sensor 2 on the user's earlobe. This device counts and displays the pulse rate per minute on the liquid crystal display 3, which measures the user's pulse rate at rest and prevents fatigue by knowing the pulse rate during exercise such as on a beauty bicycle 4. It is used to recognize the state.

Next, Fig. 2A shows a front view of the pulse meter 1 with the display 3 fully lit. 3-digit numerical display for value display,
7 is a stopwatch indicator, 8 is a pacer indicator, 9 is a measurement stop indicator, 1
0 is a pulse rate indicator, 11 is an upper limit pulse rate indicator, 12 is a lower limit pulse rate indicator, 13 is an error indicator indicating an erroneous pulse signal, etc., 14
is a dead battery indicator. Furthermore, 15 is a slide type changeover switch for switching between the off position, on position, and stop position, 16 is a push key type operation switch group, and in this switch group 16, 17 is a pulse rate setting switch for setting the upper and lower limits of the pulse rate, 18 19 is a time setting switch for setting the target time of the stopwatch, 19 is a pacer setting switch for setting the pacer pitch, and 20 is a three-way switch.
an up switch that counts up the display on the display devices 5 and 6 when setting by the three setting switches 17, 18, and 19; 21 a down switch that counts down the display; 22 a start/stop switch that starts and stops each measurement; 23 is a set value reset switch, 24 is a current value reset switch, and 25 is an all reset switch.

Then, to set the upper and lower limit settings of the pulse rate, the pulse setting switch 17 is pressed. Then, the upper limit pulse rate indicator 11 lights up and the pulse rate indicator 10 lights up to show that the numerical display content is in the process of being set, and then the up switch 20 and down switch 21 are used to set the display of the 3-digit number display 3 to the upper limit. When the pulse rate setting switch 17 is pressed again after setting the pulse rate to the set value, the lower limit pulse rate indicator 12 lights up to indicate that the lower limit set value is being set, and the pulse rate indicator 10 also lights up. This is to set the lower limit set value.

If the start/stop switch 22 is pressed after setting the upper and lower limits of the pulse rate in this way, pulse measurement will start, the usage time from the start will be displayed on the four-digit numerical display 5, and the pulse rate will be stopped. The watch indicator 7 is turned on and the measured value of the pulse rate is displayed on the three-digit numerical display 6, and the pulse rate indicator 10 is decremented in synchronization with this pulse pulse, and this measured value is the upper limit. If the pulse rate exceeds the set value, the upper limit pulse rate indicator 11 flashes to notify overwork;
If this measured value falls below the lower limit set value, the lower limit pulse rate indicator 12 is made to blink to notify that the pulse rate is abnormal.

FIG. 3 is an electrical circuit diagram of the pulse meter, in which 26 is a microcomputer for arithmetic processing, 27 is a time constant resistor 28, and a capacitor 29.
30 is a time base circuit; 31 is a sound generation circuit for generating pacer sounds and alarm sounds; and 32 is a pulse detection circuit including the pulse sensor 2.
15 is the changeover switch, and the first stop contact 34a and first on contact 34b of the first group 33 are connected to the power input terminal 3 of the microcomputer 26.
5 and the first movable contact piece 34d connects to the battery 3.
6, and the second stop contact 38a of the second group 37 is connected to the stop mode input terminal 39 of the microcomputer 26.
b indicates a stop mode release input terminal 40 of the microcomputer 26, the pulse detection circuit 32, the time base circuit 30, and the sound generation circuit 31;
The second movable contact piece 38d is also connected to the battery 36. Another 41,4
2 is a pull-down resistor, and 43 is a capacitor.

When the changeover switch 15 is set to the off position, the power to the pulse meter 1 is completely turned off, while when it is set to the on position, power is supplied to the entire pulse meter 1, and when it is set to the stop position, the pulse detection circuit 32 and the time base circuit 30 and the sound generation circuit 31, and power is supplied only to the microcomputer 26 and the liquid crystal display 3, the microcomputer 26 is in an extremely low consumption state and the display 3
The current value displayed and other set values are held, so there is no need to set them again the next time the switch is switched to the on position.

(f) Effects of the invention As described above, according to the invention, when the power switch is not being measured, simply by switching the power switch from the on position to the stop position, the power supply to the pulse detection circuit is stopped, and the liquid crystal display Since the current value and set value are maintained with ultra-low power consumption while the current value is displayed, the battery usage time can be significantly extended, and the number of battery replacements can be reduced.

[Brief explanation of drawings]

The drawings all relate to the embodiment of the proposed pulse meter.
Figures A and B are overall views showing the state of use, Figures 2A and 2B are front and side views of the pulse meter with the liquid crystal display fully lit, and Figure 3 is an electrical circuit diagram. 32...Pulse detection circuit, 26...Microcomputer for calculation, 3...Liquid crystal display, 15...Switching switch.

Claims (1)

[Scope of utility model registration request] A pulse detection circuit, an arithmetic element that calculates the pulse rate based on the detection output from the detection circuit, a display that displays the pulse rate output from the arithmetic element, and switches the arithmetic element between an on mode, an off mode, and a stop mode, The pulse detection circuit, the arithmetic element and the display are turned on in conjunction with the on mode, and the pulse detection circuit, the arithmetic element and the display are turned off in conjunction with the off mode, and in conjunction with the stop mode. A pulse meter comprising a changeover switch that turns on only the arithmetic element and display.