JPS60129687A - Portable apparatus with pressure reduction information display function - Google Patents

Abstract

PURPOSE:To enable a diver to accurately perform pressure reducing work, by making the titled apparatus portable with ease and adequately displaying the pressure reduction information of a pressure reduction depth and a pressure reduction time corresponding to a diving depth and a bottom stay time at the time of rising to the surface following diving work. CONSTITUTION:The signal P of FF6 comes to a low level by the operation of an external setting means 2b and, on the basis of this signal P, the value of the set depth information F of a dividing depth setting and memory circuit 9 and the value of the bottom stay time information of a counter circuit 20 are outputted to a display means 3 through change-over circuits 27, 28. In the next step, the value of the information F is set to the circuit 9 in proportion to the operation number of an external setting means 2a. When diving is started subsequently, a diving depth sensor 7 outputs an analogue signal corresponding to the dividing depth while said analogue signal is converted to diving depth information E through an A/D converter circuit 8 and information E is displayed by a means 3 and inputted to a detection circuit 10, comparator circuits 11, 12, a judge circuit 13 and a pressure reduction information memory part 17. Therefore, pressure reduction information is displayed by the means 3 by pushing the means 2b at the beginning of float and pressure reducing work can be accurately performed and a diver can float up to the surface.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a portable device with a depressurization information display function suitable for performing the depressurization work required when a diver completes a diving work and ascends to the surface of water.

[Background of the invention]

In recent years, with the development and spread of diving equipment, the number of divers has increased rapidly, and the number of divers who dive to deeper depths has also increased. It is desired to do so. However, after the Daiper dives to a deep depth and works there for a predetermined period of time, the Diaper slowly rises to the surface of the water again. It is not enough to prevent diving disease just by going up through the steps, and different decompression work is required depending on the conditions of diving depth (maximum diving depth) and bottom dwell time (time from the start of descent to the start of ascent). It is necessary to ascend under the following conditions (the depth at which the decompression work is performed and the decompression time, which is how long the diver remains at this decompression depth), and it is impossible for the diver to memorize this huge amount of decompression information (decompression depth, decompression time). However, it cannot be said that divers are not necessarily diving based on correct diving knowledge, and the current situation is that diving disease continues to occur every year. There has been a strong desire for an easily portable device with a decompression information display function for preventing diving disease.

[Conventional technology and problems]

As a conventional portable device for diving, for example, Japanese Patent Application Laid-Open No. 57-10
As shown in Japanese Patent No. 1786, there is provided water depth information generating means for sensing water depth and outputting water depth value information, presetting means for setting and storing the water depth value, and the size of the water depth value of the water depth information generating means and the storage section. An example of an electronic watch with a water depth gauge includes a comparator circuit that compares the water depth and issues an alarm signal, and an alarm generating means, and that alerts a diver of the dangerous water depth by a buzzer when the dangerous water depth is reached.

However, when performing actual diving work, the above-mentioned electronic watch with a depth gauge, which simply sets the water depth preset by the diver itself as the dangerous depth and simply notifies the diver of this dangerous depth, is never safe when diving to a deep depth. Instead, for example, after a diver has dived to a predetermined diving depth and is on its way to the surface again, in order to prevent diving disease, the diver should check the diving depth at which it was diving and the time since the start of the descent. It is necessary to perform decompression work according to the diving time until the start of ascent (i.e. bottom dwell time), but until now, there have been few portable devices equipped with the decompression information display function necessary for such decompression work, making it difficult for divers to do so. It had become a problem.

[Purpose of the invention]

In view of the above-mentioned aspects, the present invention determines the decompression depth and decompression time based on the maximum diving depth at which the diver was performing diving work and the bottom dwell time from the start of descent to the start of ascent. It is an object of the present invention to provide a portable device with a reduced pressure information display function that can appropriately notify information to a dipper.

[Structure of the invention]

In order to achieve the above object, the portable device with a decompression information display function of the present invention has a configuration including a diving depth measuring means for detecting the actual diving depth during diving, and a diving depth measuring means for detecting the actual diving depth during diving, and a diving depth measuring means for detecting the actual diving depth during diving, and a timer for counting bottom dwell time; and a decompression information storage means for inputting the bottom dwell time from the timer and the measured diving depth from the diving depth measuring means and outputting decompression information of decompression depth and decompression time; and display means for displaying the reduced pressure information outputted from the reduced pressure information storage means.

[Embodiments of the invention]

Embodiments of the present invention will be described below based on the drawings.

FIG. 1(A) and FIG. 1(B) are plan views of a portable device with a pressure reduction information display function showing various display states according to an embodiment of the present invention.

In FIG. 1(A) and FIG. 1(B), 1 is a case of a portable device with a decompression information display function, 1a is a band attached to the case 1 for wearing this portable device on the arm, and 2a
2b is an external setting means consisting of a push button switch for setting the diving depth, and 2b is an external setting means for starting diving and ascent consisting of a push button switch to be operated at the start of diving or ascent. , 3 is a display means composed of a decoder, a driver, a liquid crystal display device, etc., and the display portion of the display means 3 includes an actual diving depth display section 3a that displays the value of the actual diving depth, and the external setting means 2a. A setting/decompression depth display section 3b that selectively displays each value of the set diving depth set in , or a decompression depth (to be described later), and a bottom/decompression depth display section 3b that selectively displays each value of the bottom dwell time or decompression time. The decompression time display section 3C and the diving
Display section 3da of up arrow marks [collection] displayed by operating the external setting means 2b for starting ascent, or display of the up arrow mark [official] displayed by operating the external setting means 2b for starting diving and ascent at the time of starting ascent. The diving/surfacing mark display section 3d selectively displays the diving/surfacing mark display section 3db, and the diving/surfacing mark display section 3d that selectively displays the diving/surfacing mark display section 3db.
Display section 3ea of characters [set depth] indicating the set diving depth displayed by the operation of the external setting means 2b for starting ascent
or a setting/decompression depth display section that selectively displays the display section 3eb of characters [decompression depth] indicating the decompression depth (decompression point) displayed by operating the external setting means 2b for starting diving and ascent at the start of ascent; 3e and a representation 3fa of characters [bottom time] indicating the bottom time displayed by operating the external setting means 2b for starting diving and ascent at the start of diving, or the external setting means for starting diving and ascent at the start of ascent. A bottom/decompression time display section 3 that selectively displays the display section 3fb of characters [decompression time] indicating the decompression time displayed by the operation of step 2b;
It is composed of f.

In FIG. 1(A), the measured diving depth is 50 fset in the measured diving depth display section 3a of the display means 3, the set depth is 50 fset in the setting/decompression depth display section 3b, and the bottom/decompression time display section 3C, the bottom dwell time is 3 hours 00 minutes 00 seconds, the up arrow mark [8] is displayed on the display section 3da of the diving/surfacing mark display section 3d, and the display section 3e of the setting/decompression depth display section 3e.
The display state at the time of diving is shown in which letters [set depth] are displayed in a and letters [bottom dwell time] are displayed in the display section 3fa of the bottom dwell/decompression time display section 3f.

In addition, in FIG. 1(B), the actual diving depth display section 3
The measured diving depth is 10fset in a, the decompression depth is 10fset in the setting/decompression depth display section 3b, the decompression time is 29 minutes OO seconds in the bottom/decompression time display section 3C, and the display section 3db of the diving/surfacing mark display section 3d. Up arrow mark [? 〕,setting·
The characters [decompression depth] are displayed on the display section 3eb of the decompression depth display section 3e.
, shows the depressurization information display state during ascent where the characters [decompression time] are displayed on the display section 3fb of the bottom/decompression time display section 3f.

Although not shown in the drawings, a diving depth sensor for detecting diving depth and a diaphragm section of a buzzer are disposed on the back side of the case 1 of the portable device with a decompression information display function.

FIG. 2 is a circuit block diagram of a portable device with a pressure reduction information display function, which is an embodiment of the present invention.

In FIG. 2, 4 is a crystal oscillation circuit, and 5 is a 2048Hz signal PA, a 1024Hz signal PB, and a 2Hz signal pc using the oscillation signals from the crystal oscillation circuit 4 as input.
and a 1Hz signal PD, and 6 is a toggle type flip-flop whose output signal P is alternately inverted every time the operation signal P1 from the external setting means 2b for starting diving/surfacing is input , FF), and is configured to be reset by a signal P4 from a zero detection circuit 10, which will be described later.

Reference numeral 7 denotes a diving depth sensor for detecting diving depth, and the configuration of this diving depth sensor 7 is such that a pressure sensor (not shown) such as a semiconductor strain gauge or a piezoresistor is attached to the back of the case 1, or A part of 1 is formed into a thin plate shape and constitutes a pressure displacement plate (not shown) that displaces in response to pressure, and the change in the gap between this pressure displacement plate and the opposing kiln metal plate (not shown) is determined by capacitance. or by fixing a magnet partially on the inner surface of the pressure displacement plate and electromagnetically detecting the minute movement of the magnet accompanying the displacement of the pressure displacement plate using a detection coil (not shown). These sensors are installed inside the case 1 of the wristwatch or on the outer surface of the case 1, so the mobile device equipped with this small sensor does not weigh much even when worn on the wrist of a dialer. It can be said that it is highly portable and does not impose any physical burden.

Reference numeral 8 denotes an A/D conversion circuit which inputs the analog signal P2 outputted from the diving depth sensor 7 and converts it into actual measured diving depth information E as a digital signal, and 9 corresponds to the number of pulses of the signal P3 from the external setting means 2a. The diving depth setting storage circuit 9 is a diving depth setting storage circuit for storing diving depth, and diving depth setting storage information F is outputted from the diving depth setting storage circuit 9.

10 is a zero detection circuit that detects that the actual diving depth information E of the A/D conversion circuit 8 is zero;
If zero is detected and signal P4 is output, it means that this portable device with a pressure reduction information display function is not under the water surface, that is, it is in a state where the water surface is scratchy or in a non-diving state.

11 is actual diving depth information E from the A/D conversion circuit 8.
This is a comparison circuit that detects coincidence with decompression depth information G outputted from a decompression information storage section 17, which will be described later. When a coincidence is detected, a line number signal P5 is output from the comparison circuit 11.

Reference numeral 12 indicates a comparison between the actual diving depth information E of the A/D conversion circuit 8 and the diving depth setting storage information F from the diving depth setting storage circuit 9, i.e., outputting a signal P7 when E>F. A circuit 13 is a discrimination circuit that detects that the actual diving depth information E of the A/D conversion circuit 8 is no longer 0, that is, that the descent has started, and when E>0, a signal P6 is output. Ru.

14 is an AND circuit whose inputs are the signal P of F-F6, the signal P5 of the comparison circuit 11, and the signal PD of the frequency dividing circuit 5;
5 is the signal P6 of the discrimination circuit 13 and the signal P of the frequency dividing circuit 5.
AND circuit with D as input, 16 is signal P of F-F6
17 is an A/D circuit that outputs a one-shot signal Pφ when Pφ changes from low level to high level.
A ROM that outputs decompression depth information G and decompression time information H stored in advance in accordance with each input value of actual diving depth information E from the conversion circuit 8 and bottom time information I from the latch circuit 21 described later. , a decompression information storage unit consisting of a RAM, etc., and 18 a timer circuit in which the value of the decompression time information H outputted from the decompression information storage unit 17 is preset, and this preset value is subtracted and counted by inputting the signal of the AND circuit 14. , 19 is an AND circuit that receives the signal from the AND circuit 14 and the signal PB from the frequency divider circuit 5, and 2O uses the signal P4 from the zero detection circuit 10 as a reset signal and counts the signal from the AND circuit 15. The input counting circuit 21 is a launch circuit that uses the signal P4 from the zero detection circuit 10 as a reset signal and uses the blank shot signal Pφ from the one-shot circuit 16 as a launch timing signal to store the g1 value of the counting circuit 20. ,
The bottom time information (3) from the falling/nodding circuit 21 is input to the pressure reduction information storage section 17.

22 is a zero detection circuit that detects when the count value of the timer circuit 18 changes to zero and outputs a one-shot signal; 23 is a signal P7 from the comparator circuit 12 and a signal P from the frequency divider circuit 5;
A and a signal PC as inputs, and 24 is a one-shot signal of the zero detection circuit 22, a signal P1 from the external setting means 2b for starting diving and ascent, a signal from the AND circuit 19, and a signal from the AND circuit 23. 25 is a buzzer drive circuit that receives the signal from the OR circuit 24 as input, 26 is a buzzer driven by the buzzer drive circuit 25, and 27 is a switching control signal using the signal P of F-F6 as a switching control signal to provide pressure reduction information. A switching circuit 28 selectively outputs information from G, set diving depth information 1, and F. Likewise, 28 uses the signal P of F-F6 as a switching control signal, and the count value from the stitch number circuit 2O, that is, the bottom time information. and timer circuit 1
8 is a switching circuit that selectively outputs the count value, ie, the decompression time information; 3 is the above-mentioned display means;
- When the signal P of F6 is input and the level of this signal P is low level, the display part 3 as shown in FIG.
d, display section 3e and display section 3f are respectively upward arrow [8]
, [Set depth] and [Bottom dwell time] are displayed, and F-
When the signal P of F6 takes a high level, the display section 3d, display section 3e, and display section 3f display an upward arrow (?), [decompression depth], and [decompression time], respectively, as shown in FIG. 1(B). Ru.

On the other hand, accordingly, the display sections 3a to 3C are displayed as shown in FIG. 1(A) when the signal p of F-F6 is low level, and as shown in FIG. It is displayed as shown in B).

Next, the operation of the portable device with a pressure reduction information display function based on the above configuration will be explained.・ 2 First, before the diver starts diving, external setting means 2
Press and operate b to set signal P of F-F6 to low level.
The up arrow [8] is displayed on the display section 3da as shown in FIG. 3(A).

By this operation, the signal P1 is input to the buzzer drive circuit 25 via the OR circuit 24, and the buzzer 26 emits a diving start confirmation sound.

Furthermore, the operation of the external setting means 2b is determined by the signal P4 of the zero detection circuit 10, so that the signal P of F; F6 becomes low level, and the display sections 3e and 3f are displayed as shown in FIG. 1(A).
The switching circuits 27 and 28 that display the characters [set depth] and [bottom dwell time] and use this signal P as a switching control signal,
The value of the set depth information F of the diving depth setting storage circuit 9 and the value of the bottom time information of the counting circuit 20 are selectively output to the display means 3, respectively.

Note that since the actual diving depth display section 3a has not dived yet, the A/D conversion circuit 8 is E-0, the actual diving depth display section 3a displays Offset, and furthermore, at this time, the diving depth setting storage circuit 9 When the diving depth setting is not stored in the
That is, when F=O, the set depth display section 3b is 0 fset.
is displayed, and the counting circuit 20 receives the signal P of the zero detection circuit 10.
4, the bottom/depressurization time display section 3C assumes a display state of 0 hours 00 minutes 00 seconds.

Moreover, in this state, by pressing and operating the external setting means 2a, the value of the set diving depth information F is set in the diving depth setting memory circuit 9 in proportion to the number of operations. As shown in FIG. 1(A), for example, 50 fset is displayed on the setting/decompression depth display section 3b.

Next, from this state, the diver actually starts diving and dives to the target diving depth (50 fset in this case) and performs the diving operation, but during this diving, the diving depth sensor 7 detects the diving depth. It outputs the analog signal P2 corresponding to the digital signal to the A/D conversion circuit 8 every moment, and the digital signal Dive depth information E is output by the A/D conversion circuit 8.
This diving depth information E is displayed on the actual diving depth display section 3a moment by moment, and is input to the zero detection circuit 10, the comparison circuit 11.12, the discrimination circuit 13, and the decompression information storage section 17. be done.

Therefore, when the diving depth information E, which is a digital signal from the A/D conversion circuit 8, is input to the discrimination circuit 13 and it is discriminated that E>0, the signal P6 becomes high level, and the AND circuit 15 receives the signal from the frequency dividing circuit 5. The counter circuit 2 allows the signal PD to pass through.
o is activated to start measuring the bottom dwell time, and the content thereof is displayed moment by moment on the bottom/depressurization time display section 3c via the switching circuit 28.

It should be noted that the diver performs a prescribed diving operation at this diving depth, and in the middle of it, for example, the diver accidentally enters this diving depth (5
0fset), the comparator circuit 12 immediately outputs a high-level signal P7, the AND circuit 23 allows the signals PA and PC to pass, and the buzzer drive circuit 25 is activated via the OR circuit 24. When activated, the buzzer 26 emits a high-pitched alarm sound to alert the dialer to quickly escape from this dangerous depth.

In this way, the diver completes the prescribed diving operation, and the dwell time at the bottom is 3 hours O0 minutes 00, for example, as shown in Figure 1 (A).
At the end of the second, we will begin the levitation work.

At this time, the dipper is the diving/surfacing start external setting means 2b.
By operating , the display means 3 displays the depressurization information necessary for performing depressurization work.

That is, by pressing the diving/surfacing start external setting means 2b, the signal P1 operates the buzzer drive circuit 25 via the OR circuit 24, and the buzzer 26 emits an ascent confirmation sound.

Furthermore, at the same time, a high level signal P is output from F- and F6, thereby displaying the display section 3db.

3eb and 3fb respectively display an upward arrow [official], [decompression depth], and [decompression time] as shown in FIG.
φ is output as a lunch timing signal, and the counting circuit 2
A count value of 0 (bottom dwell time) is latched in the latch circuit 21.

6 Therefore, the bottom time information I latched by the launch circuit 21
(in this case, 3 hours 00 minutes OO seconds) and the diving depth information E at that time are input into the decompression information storage section 17.

Moreover, since the decompression information and storage unit 17 is stored in advance so that the diving depth and bottom dwell time at the timing of the signal Pφ are outputted as addresses, for example, diving, water depth 50 fset, bottom dwell time When is 3 hours 00 minutes 00 seconds, the decompression depth information G is 10 feet.
, the decompression time information H will be output as 29 minutes 00 seconds.

Also, for example, the diving depth is 50. feet, when the bottom residence time is 3 hours 20 minutes 00 seconds, the decompression depth information G is 10 feet1
, the decompression time information H is output as 35 minutes 00 seconds, and when the diving depth is 60 feet and the bottom dwell time is 1 hour 20 minutes 00 seconds, the decompression depth information G is 10 feet, and the decompression time information H is output.
will be output in various ways, such as 7 minutes 00 seconds.

Moreover, the pressure reduction information H from the pressure reduction information storage section 17 is preset in the timer circuit 18, and this preset value is displayed on the bottom/reduction time display section 3c via the switching circuit 28, for example, as shown in FIG. 1(B). The time will be displayed as 29 minutes 00 seconds.

Similarly, the decompression information G from the decompression information storage section 17 is displayed on the setting/decompression depth display section 3b via the switching circuit 27 as shown in FIG. 1(B), and this decompression depth information G is It will be input to one side of the circuit 11.

Therefore, Diaper uses this decompression information as an indicator to emerge,
In addition, during this ascent, the display state of the actual diving depth display section 3a changes to the decompression depth (10fset) as shown in FIG. 1(B).
), at that decompression depth place, the decompression work is performed by stopping the ascent and waiting for the time displayed on the bottom/decompression time display section 3c ('a bottom dark time, that is, 20 minutes 00 seconds). Just go.

Note that at the start of the decompression work, the signal P of F-F6 is at a high level, so the comparator circuit 11 outputs a high level signal P.
5 is output, the signal P'D of the frequency dividing circuit 5 is inputted via the AND circuit 14 to the other input terminal of the AND circuit 19 which has the signal PB as one input terminal. A signal modulated by the signal PB and the signal PD is output to the OR circuit 24, and the buzzer drive circuit 25
will be activated, and the buzzer 26 will emit a sound confirming the depressurization operation.

Furthermore, since the signal from the AND circuit 14 is input to the timer circuit 18 in which the decompression time information H is preset, the timer 1?318 starts a subtraction counting operation with the decompression time information H as the initial value. The counted value is displayed moment by moment on the bottom/depressurization time display section 3C via the switching circuit 2 days.

Eventually, when the pressure reduction time on the bottom/reduction time display section 3c is displayed as 0, that is, when the count value of the timer circuit 18 becomes O, a one-shot signal is outputted from the zero detection circuit 22 to the OR circuit 24. , the buzzer drive circuit 25 is activated and the buzzer 26 emits a sound confirming the completion of the decompression work.

Therefore, if the diver starts ascent again while listening to this confirmation sound or watching the decompression information display, he can safely ascend while preventing dangers such as diving disease.

When the ascent is completed and the diver reaches the water surface, the actual diving depth information E of the depth O is input to the zero detection circuit IO via the diving depth sensor 7 and the A/D conversion circuit 8. Signal P4 is output, F'-F6 is reset, and latch circuit 21 and counting circuit 2'0 are reset by signal Pφ from funshot circuit 16 which receives signal P4.

In addition, the decompression information storage section 17 of this portable device with decompression information display function stores the settings and decompression depth display section in the decompression information display state when the bottom dwell time is short at a relatively shallow depth where decompression work is not required. The decompression time at 3b can be stored in advance so that it is displayed as 0 hours 00 minutes 00 seconds, or the setting/decompression depth display section 3b and the bottom/decompression time information section 3C.
On the display, the characters (No-
D'ENCOM-PRESS] may be stored in advance so that it is displayed.

0 [Effects of the Invention] As described above, the portable device with a decompression information display function of the present invention can be easily carried without imposing a weight load on the diver, and can be used to easily display the diving depth and bottom during ascent during diving work. Since the decompression information of the decompression depth and decompression time according to the time is appropriately displayed, the dialer can perform the decompression work accurately without causing diving sickness based on this decompression information.

[Brief explanation of the drawing]

1(A) and 1(B') are plan views showing each display state of a portable device with a pressure reduction information display function which is an embodiment of the present invention, and FIG. 2 is an embodiment of the present invention. FIG. 2 is a circuit block diagram of a portable device with a reduced pressure information display function. 2a... External setting means, 2b... External setting means for starting diving/surfacing, 3... Display means, 3a... Actual diving depth display section, 3b... Setting/actual depth display section, 3c・
... Bottom/decompression time display section, 7... Diving depth sensor, 8... A/D conversion circuit, 9... Diving depth setting memory circuit, 11.12... Comparison circuit, 17. ...Reduced pressure information storage unit,]8...Timer circuit, 2O...4 several circuits, 25...Buzzer drive circuit, 26...Buzzer, patent applicant Citizen Watch Co., Ltd. 3 Figure 1 (△ )

Claims (1)

[Claims] (1) A diving depth measuring means for detecting the actual diving depth during diving, a timing means for counting the bottom dwell time from the start of descent to the start of ascent during diving, and the bottom dwell time from the time counting means. a decompression information storage means for inputting the measured diving depth from the diving depth measuring means and outputting decompression information of decompression depth and decompression time; and a display means for displaying the decompression information output from the decompression information storage means. A portable device with a decompression information display function, characterized in that: