JP3520400B2 - Information display device for divers - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diver's information display device called a diver's watch or a dive computer. For more details,
The present invention relates to an information display technique in such an information display device.

[0002]

2. Description of the Related Art In a diver's information display device called a diver's watch or a dive computer,
The diver's water depth position and dive time are displayed so that the diver can safely dive. A widely used method for displaying the dive time is to provide a rotating bezel on a pointer type timepiece. In this method, a time scale is attached to the surface of the rotating bezel, and when the dive is started, the rotating bezel is rotated and the scale corresponding to 0 hours is set to the minute hand position. Then, when the minute hand rotates as time passes, the elapsed time (diving time) can be calculated by comparing the minute hand with the scale on the rotating bezel.
I understand.

Among divers display devices equipped with a liquid crystal display panel, the progress of the dive time is digitally displayed to inform the diver in detail of the dive time. Further, by recording the diving history in a memory and digitally displaying it on a liquid crystal display panel at a later date, it is possible to inform the diver in detail of how many days have passed since the last diving.

[0004]

However, the display method using the rotating bezel and the method for digitally displaying various information as in the conventional information display device for divers are not easy to use for the reason described below. There is a point.

First, in the method using the rotating bezel, the diver compares the scale of the rotating bezel with the minute hand in order to confirm the dive time, but the dial on the background of the pointer is used to display the time. Since the mark is attached, the diver wonders which scale should be compared with the minute hand. Also, since the diver's information display device is attached to the diver's arm, the rotating bezel may rotate when the diver's information display device touches a rock or the like, and in such a state, an accurate time lapse may occur. Cannot be displayed. Furthermore, although a click mechanism is formed between the rotary bezel and the apparatus body, such a click mechanism may not work due to wear of parts and deformation due to temperature change. Even in such a situation, the rotating bezel rotates around without permission, and it becomes impossible to display an accurate time lapse.

On the other hand, in the method of digitally displaying the passage of time or the like, the diver cannot judge what is being displayed by looking at the digitally displayed number for a moment, and has to keep watching for a few seconds. is there. In addition, in the information display device for divers, in addition to the water depth position and dive time,
When the water temperature and the like are digitally displayed on the liquid crystal display panel, a large amount of information is digitally displayed on the liquid crystal display panel, and it is not possible to immediately determine which is the elapsed time.

In view of the above problems, the object of the present invention is to
An object of the present invention is to provide an information display device for divers, which is capable of displaying various information in a form in which the divers can easily see the information.

[0008]

In order to solve the above problems, according to the present invention, at least a water entering monitoring sensor for detecting that a diver has entered water, a time measuring means for measuring time, and a measurement result of the time measuring means are provided. In a diver's information display device having a display means provided with a display panel for displaying at least the dive time based on the water depth,
Measuring means, the display means is the water flow monitoring sensor
After the water is detected by the
Until the predetermined depth that can be estimated as the start of diving is measured
Is a character that repeatedly changes its form or display position.
Is displayed on the display panel and the water depth measuring means is used.
After the specified water depth has been measured,
The dive time is displayed in a graph or the character display position.
It is characterized by displaying more . In this configuration,
The display panel includes a first display area located in the center and
A second display area along the outer periphery of the first display area
However, the display means displays the character or the graph.
It is preferable to display a frame in the second display area.

In the present invention, when the diver starts water entry, the fact is graphically displayed on the display panel, so that the diver can easily confirm whether or not the device is operating normally. Moreover, such a graphic display has an advantage that the diver can recognize it at a glance, unlike the character display.

[0010] In the invention, the when the display means is a graphic display that the diver is drowned in the display panel, for changing repeatedly form or display position of the character displayed therein, unlike the display stationary, It is easier to visually recognize that fact.

[0011]

In the present invention, the display panel is a center panel.
The first display area located at and the outer periphery of the first display area
A second display area along the
Character or the graph is displayed in the second display area.
Is preferably displayed.

In the present invention, information such as diving time is displayed in the graph display area arranged along the outer periphery of the display area .
Displayed in the second display area . Therefore, unlike the digital display, since it is a graph display, there is an advantage that the diver can easily visually recognize the displayed contents. Also, the second
Since the display area is as long as possible along the outer circumference of the display area, the elapsed time and the like can be displayed in small increments. Further, since the second display area is formed along the outer periphery of the display area, there is an advantage that an area for digitally displaying various information can be secured inside the second display area .

In the present invention, the display means is the first
It is preferable to display a graph that extends to a position corresponding to the minute hand position of the current time from the position corresponding to the center hand position at the start of diving The dial clock when displayed graphically dive time in two display areas. When the elapsed time is displayed corresponding to the position of the minute hand of the pointer type timepiece in the second display area thus configured along the outer circumference of the display area ,
Since the diver can confirm the displayed contents with the same feeling as the conventional rotating bezel, there is no sense of discomfort and it is easy to use. Moreover, not only the dive time but also the approximate dive start time can be confirmed.

In this case, in the second display area ,
It is preferable to display the elapsed time in a graph by displaying a number of characters corresponding to the elapsed time. With this configuration, the angle range in which the character is displayed corresponds to the dive time, so that the diver can easily understand the dive time.

In this case, the display means displays the second
The character is displayed in the display area at an angle interval of 30 ° at a maximum of 1
It is preferable to display two. This is because 12 pieces have the best visibility.

In the present invention, it is preferable that the character is a symbol or a graphic having a directional form indicating a direction in which the graph extends. With this configuration, the diver naturally moves his or her line of sight in the direction indicated by the character to naturally confirm the entire display content.
Do not mistake the display.

In the present invention, among the above characters,
It is preferable that at least one of the character corresponding to the starting point of the graph and the character corresponding to the ending point of the graph repeats the morphological change. With such a configuration, the character that repeats the morphological change is conspicuous, which is an advantage that the diver can easily see the display.

In the present invention, it is also preferable that the display means quantitatively graphically displays the diving history on the display device panel after the completion of the tyving .

As described above, when the diving history is graphically displayed on the display panel, the diving history is quantitatively displayed by the length of the cycle for changing the form or the display position of the character displayed there.

In the present invention, the dive history is, for example,
This is the dive time of the current dive or the time elapsed since the last dive. With this configuration, it is possible to know the degree of fatigue of the diver and the degree of recovery of physical strength, so that the next diving schedule can be planned in light of this. Moreover, since such a display is a graphic display, unlike the digital display, it is convenient because it is possible to grasp the general feeling with a sense.

In the present invention, it is preferable that the character has a form representing marine life for the purpose of characterizing the display for divers.
Such marine life is preferably in the form of a dolphin, which is respected as a guardian deity among divers.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION The best mode of the present invention will be described below with reference to the drawings.

[Overall Structure] FIG. 1 is a plan view showing a part of an apparatus main body and an arm band of the diver's information display device of the present embodiment. FIG. 2 is a block diagram thereof.

In FIG. 1, the diver's information display device 1 of the present embodiment is also called a so-called dive computer, and displays the depth position and dive time of the diver during diving and displays them, and The amount of nitrogen accumulated in the body (nitrogen partial pressure in the body) is measured, and the rest time and the like to be taken on land after diving is displayed from this measurement result.

In the diver's information display device 1, arm bands 3 and 4 are connected to a circular device body 2 at the 6 o'clock side and the 12 o'clock side of a wristwatch, respectively. As with a wristwatch, it can be worn on the wrist and used. The apparatus main body 2 has an upper case and a lower case fixed in a completely watertight state by a method such as screwing, and accommodates a board (not shown) on which various electronic components are mounted.

The liquid crystal display panel 1 is provided on the upper surface side of the apparatus main body 2.
1 is placed, and 2 is on the 6 o'clock side of the wristwatch.
Switches A and B composed of two push buttons are configured. The switches A and B are an operation unit 5 for selecting and switching each mode performed in the diver's information display device 1, as described later.

A dive operation monitoring switch 30 using a moisture detection sensor for monitoring whether or not diving has started is provided on the 9 o'clock side of the wristwatch on the upper surface side of the apparatus body 2.
Is configured. This dive operation monitor switch 30
Two electrodes 31 and 32 exposed on the upper surface of the device body are provided, and it is determined that water has entered when the electrodes 31 and 32 are conducted by seawater and the resistance value between the electrodes 31 and 32 becomes small. To do. However, this dive operation monitoring switch 30
Is only used for detecting that water has entered and for shifting to a diving mode described later, and does not detect that one tie is started. That is, the arm on which the information display device 1 is mounted may simply be immersed in seawater, and in such a case, it should not be treated as having started diving. Therefore, in the information display device 1 of the present embodiment, the diving is started when the water depth (water pressure) is not less than a certain value by the pressure sensor built in the device body, for example, in the present embodiment, the water depth becomes deeper than 1.5 m. It is considered that the diving was completed when it was considered and when it became shallower than this depth value.

As shown in FIG. 2, the information display device 1 of the present embodiment is a liquid crystal display panel 1 for displaying various information.
1, a liquid crystal driver 12 that drives the display unit 1 and a control unit 50 that performs processing in each mode and causes the liquid crystal display panel 11 to perform display according to each mode.
0 is configured. The outputs from the diving operation monitoring switch 30 using the switches A and B and the moisture detection sensor are input to the control unit 50.

The diver's information display device 1 displays the normal time and measures the dive time.
In contrast, the clock output from the oscillation circuit 31 is input through the frequency dividing circuit 32, and the time counter 33 is configured as a time measuring unit 68 that measures time in units of 1 second.

The diver's information display device 1 measures and displays the water depth and measures the amount of nitrogen gas (inert gas) accumulated in the body from the water depth (water pressure) and the diving time. From the pressure sensor 34 (semiconductor pressure sensor), an amplifier circuit 35 for the output signal of the pressure sensor 34, and an A / D that converts the analog signal output from the amplifier circuit 35 into a digital signal and outputs the digital signal to the control unit 50. The water depth measuring means 61 including the conversion circuit 36 is configured. Further, the information display device 1 is configured with a sounding device 37 and a vibration generating device 38, which can transmit a warning or the like to the diver as an alarm sound or vibration.

In the present embodiment, the control section 50 comprises a CPU 51 which controls the entire apparatus, and a control circuit 52 which controls the liquid crystal driver 12 and the time counter 33 under the control of the CPU 51, and is stored in the ROM 53. Each mode described below is realized by each process performed by the CPU 51 based on the stored program.

The diver's information display device 1 is configured to monitor the diver's ascent speed during a diving mode, which will be described later. This function is performed by the CPU 51, ROM 53,
It is realized as the following configuration using the functions of the RAM 54 and the like.

That is, as shown in FIG. 3, in the information display device 1 for divers, the levitation speed measurement for measuring the levitation speed at the time of levitation based on the measurement result of the timing means 68 and the measurement result of the water depth measurement means 61. The means 75 and the measurement result of the levitation speed measuring means 75 are compared with a preset levitation speed upper limit value 76. If the current levitation speed is faster than the levitation speed upper limit value 76, a warning that the levitation speed is violated is issued. Ascending speed violation warning means 77 is configured. The floating speed measuring means 75 is the CPU 51 and the ROM 5 shown in FIG.
3, the floating speed violation warning means 77 is realized by the arithmetic function of the RAM 54, and the CPU 51, R shown in FIG.
It is realized as a function such as display on the OM 53, the RAM 54, the alarm device 37, the vibration generator 8, and the liquid crystal display panel 11.

In this embodiment, the ascending speed violation warning means 7
Reference numeral 7 compares the levitation speed upper limit value for each water depth range stored in the ROM 53 as the levitation speed upper limit value 76 with the current levitation speed, and the current levitation speed corresponds to the current water depth. If it is faster than 76, the display on the liquid crystal display panel 11, the alarm sound from the alarm device 37,
Furthermore, a warning of a floating speed violation is issued by a method of transmitting vibration from the vibration generator 38 to the diver, and when the floating speed returns to a state slower than the floating speed upper limit value 76, the warning of a floating speed violation is stopped.

The diver's information display device 1 has
One dive operation from when the water depth value measured by the water depth measuring means 61 becomes deeper than 1.5 m (water depth value for judging dive start) to when it becomes shallower than 1.5 m (water depth value for dive end judgment). Dive results during this time (diving date,
Various data such as dive time and maximum water depth)
The diving result recording means 78 for storing and holding is constructed. This dive result recording means 78 is also C shown in FIG.
It is realized as a function of the PU 51, the ROM 53, and the RAM 54. Here, the diving result recording means 78 has a flying speed violation when the ascending speed violation warning means 77 issues a plurality of continuous warnings in one dive, for example, two or more continuous warnings. It is configured to record the effect as the diving result, and when the past diving result is reproduced and displayed in the log mode described later, the fact that the ascending speed is violated during the diving is also reproduced and displayed. The diving result recording means 78 has a water depth value of 1.5 measured by the water depth measuring means 61.
From the time when it becomes deeper than m (water depth value for judging dive start) until it becomes shallower than 1.5 m (water depth value for dive end judgment), the dive time is measured based on the measurement result of the timing means 68, and the dive time is measured. If the time is less than 3 minutes, the dive during this period is not treated as one dive, and the diving result during that period is not recorded. The diving result recording means 78 stores and holds the diving results as a maximum of 10 pieces of log data, and when diving more than that, it is deleted in order from the oldest data, so it is important to record a short dive such as a bare dive. This is because the results of such diving will be deleted.

[Explanation of Display Unit] Referring again to FIG. 1, the display surface of the liquid crystal display panel 11 is composed of nine display regions.
These nine display areas are the display areas 11 located at the center.
A and the annular display area 11B located on the outer peripheral side thereof are roughly classified. Although the display area 11A and the annular display area 11B located outside the display area 11A are circular in this embodiment,
The shape is not limited to a circle, but may be an ellipse, a track, or a polygon.

Of the display areas 11A, the first display area 111, which is located on the twelve o'clock side of the wristwatch, is the largest of the respective display areas, and includes a diving mode and a surface mode (time of day) which will be described later. Mode), planning mode, and log mode, the current water depth, current month and day, water depth rank, and diving month and day (log number) are displayed. The second display area 112, which is located at 3 o'clock from the first display area 111, has a dive time, a current time, and no decompression time in the diving mode, the surface mode (time mode), the planning mode, and the log mode, respectively. The available dive time and dive start time (dive time) are displayed.
In the third display area 113, which is located at the 6 o'clock side of the first display area 111, the maximum water depth, the nitrogen discharge time in the body, and the diving mode, the surface mode (time mode), the planning mode, and the log mode, respectively, The safety level and maximum water depth (average water depth) are displayed. The fourth display area 114, which is located at 3 o'clock from the third display area 113, has a non-decompressible dive time and a water surface pause in the diving mode, the surface mode (time mode), the planning mode, and the log mode, respectively. The time, temperature, and end time of diving (water temperature at maximum water depth) are displayed. Fifth display area 1 located on the 6 o'clock side of the third display area 113
15 includes a power capacity out warning 104 and a high altitude rank 103.
Is displayed. In the sixth display area 116 located on the most 6 o'clock side of the liquid crystal display panel 11, the amount of nitrogen in the body is displayed as a graph. In addition, in the seventh display area 117, which is located at the 3 o'clock side of the sixth display area 116, it is determined whether nitrogen (inert gas) tends to be absorbed when the decompression diving state is set in the diving mode. There is an area that shows whether there is a tendency, an area that displays "SLOW" as one of the ascent rate violation warnings indicating that the ascent rate is too high, and "DECO" that is an alert that the decompression dive is reached during the dive. The area to display is configured.

Further, in the ring-shaped display area 11B, as will be described below with reference to FIGS. 4 to 6, 12 "dolphins" are displayed at positions 30 degrees clockwise from the position corresponding to 12:00 on the wristwatch. Individual marks (characters) can be displayed.

4 to 6 show the liquid crystal display panel 11 in the diver's information display device 1 of this embodiment.
An explanatory view showing a display form indicating that water has entered, which is displayed in the annular display region 11B, an explanatory view showing a display form of the dive time displayed in the annular display region 11B of the liquid crystal display panel 11 during the dive, and after the end of the dive. 3 is an explanatory diagram showing a display form of a dive time displayed in an annular display area 11B of the liquid crystal display panel 11. FIG. In addition, in FIG. 5 and FIG. 6, the annular display area 11 is provided inside the annular display area 11B.
The time and dive time corresponding to the display at B are shown.

First, in this embodiment, various functions are checked when the diver enters water to start diving and the water entering monitoring switch 30 detects the water entering. If all the functions are normal, that fact is graphically displayed in the annular display area 11B as shown in FIG. That is, one dolphin mark appears in the annular display area 11B, and its display position changes in the clockwise direction. There are two types of dolphins displayed during this time, one of which has a tail down,
The other is the raised form. Therefore, when the diver enters the water, the display of the dolphin in the annular display area 11B is switched between the above-mentioned two forms, so that the dolphin is displayed graphically as if it were swimming. Therefore, the diver can confirm that the diver's information display device 1 is operating normally before diving to a deep position, which is convenient. Moreover, since the dolphin is moving in the display at this time, it is easier to visually recognize the fact that the dolphin is being displayed, as compared with the stationary display.

Further, in the divers information display device 1 according to the present embodiment, after diving, it is treated that one dive has started at the time of diving to a position deeper than 1.5 m, and thereafter, As shown in FIG. 5, the annular display area 11
In B, the diving time (diving information) is displayed as a graph. At this time, the elapsed time is displayed as a graph from the position corresponding to the minute hand position in the pointer type timepiece to the position corresponding to the minute hand position at the current time when the measurement of the dive time is started. For example, in this embodiment, when diving starts at 10:15,
In the circular display area 11B, if it is a pointer type timepiece, one dolphin is displayed in the direction of 3 o'clock which the minute hand should point at 10:15, and thereafter, it is displayed there every 5 minutes. More and more dolphins are played. As a result, 46 minutes have passed since the dive was started at 10:15 and 11:01
At the time of the minute, from the position of 3 o'clock that the minute hand should point at 10:15 in the case of a pointer-type timepiece, to 12 o'clock that of the minute hand at 11:01 in the case of a pointer-type timepiece. Up to the position, 9 dolphins are displayed at 30 ° intervals clockwise. Among these plural dolphins, the dolphin corresponding to the end point of the graph is alternately switched to the above-mentioned two types of forms (a form in which the tail is lowered / a form in which the tail is raised) and swims there. It is displayed as if. Therefore, the dolphin that repeats such a morphological change is more conspicuous than other dolphins, so that there is an advantage that the diver can easily see the display.

In this embodiment, the dolphin is displayed so as to alternately blink and switch between the tail-lowered form and the tail-raised form, but the display form in which the entire dolphin blinks, the dolphin head You may use the display form which blinks, the display form which the head and the tail of a dolphin blink.

As described above, in the diver's information display device 1 of the present embodiment, the diving time is graphically displayed in the annular display area 11B arranged along the outer periphery of the display area. With such a graph display, unlike the digital display, there is an advantage that the diver can easily visually recognize the displayed contents. Further, in the annular display area 11B, a maximum length area is secured along the outer periphery of the display area,
The elapsed time can be displayed in detail in increments of 5 minutes. Further, since the graph display area is formed along the outer periphery of the display area as the annular display area 11B, there is an advantage that a relatively large display area 11A is secured inside and a variety of information can be digitally displayed therein. Further, unlike the one using the rotating bezel, the scale is not mistaken, and the troubles caused by the wear and deformation of the mechanical parts do not occur, so that the reliability is high.

In displaying the graph in the annular display area 11B, 12 dolphins are used because of good visibility, but 24 or 60 dolphins may be displayed.

Further, in the diver's information display device according to the present embodiment, when the diving history is displayed in the log mode, as shown in FIG. 6, the diving time at the time of performing the diving designated as the reproduction target. Is configured to be displayed as a graph in the annular display area 11B. The dive time at this time is also displayed as a graph from the position corresponding to the minute hand position in the pointer type timepiece when the time measurement is started to the position corresponding to the minute hand position when the diving is finished. For example, start diving at 10:15, 1
When the diving is finished at 1:01, in the circular display area 11B, from the direction of 3 o'clock that the minute hand should point at 10:15 in the case of a pointer type timepiece, if it is a pointer type timepiece Nine dolphins are displayed at 30 ° clockwise intervals up to the 12 o'clock position where the minute hand should point at 11:01. Among these plural dolphins, the dolphin displayed in the 3 o'clock direction corresponding to the starting point of the graph is
It will alternate between different forms (tail-down / tail-up), where it will appear to be swimming. Therefore, the dolphin that repeats such a morphological change is more conspicuous than other dolphins, so that there is an advantage that the diver can easily see the display.

It is to be noted that when such a display is performed, FIG.
As shown in, the dolphin displayed at the 12 o'clock position, which corresponds to the end point of the graph, alternately switches to the above-mentioned two types of forms (form with a lowered tail / form with a raised tail), and swims there. May be displayed.

As described above, in this embodiment, the annular display area 1
In 1B, also when displaying the diving time (diving information) performed in the past in the form of a graph, the minute hand points when the dive ends from the position corresponding to the position where the minute hand should point when the dive starts. It is displayed as a graph up to the position corresponding to the power position. If it is such a graph display,
Unlike the digital display, the diver has the advantage that it is easy to see what is being displayed. Further, in the annular display area 11B, the maximum length of area is secured along the outer periphery of the display area, so that the elapsed time can be displayed in detail in 5 minute increments. Further, since the graph display area is formed along the outer circumference of the display area, there is an advantage that a relatively large display area 11A is secured inside and a variety of information can be digitally displayed there.

The dolphin used for the display has a directional form such as a head and a tail, and the head is oriented in the direction in which the graph extends. Therefore, the diver moves the line of sight in the direction indicated by the dolphin and naturally confirms the entire display content, and thus the display is not mistaken.

In the present embodiment, for the purpose of characterizing that it is for divers also in display, a dolphin that is most familiar among human beings and respected as a guardian among divers is used for graphic display. However, it may be a form representing other marine life. Further, it may be graphically displayed by a symbol such as an arrow or a figure.

[Explanation of Internal Nitrogen Amount Calculation Method] FIG. 8 is a functional block diagram for explaining an example of the configuration for calculating the internal nitrogen partial pressure (internal nitrogen amount) in the diver's information display device 1 of the present embodiment. Is. The calculation of the amount of nitrogen in the body shown here is merely an example, and various methods can be used. Therefore, a configuration for that purpose will be briefly described here. For the calculation method of the decompression condition after diving performed in the information display device for divers of this embodiment, see KENLOY
"DIVE COMPUTERS A CONSUMER'S GUIDE" by ST et al.
TO HISTORY, THEORY & PERFORMANCE '''Watersport Pub
It is described in detail in lishing Inc. (1991). For the theory, see “Decomp by AA Buhlmann.
ression-Decompression Sickness ", Springer, Berlin
Detailed in (1984). All of these documents suggest that the inert gas dissolved in the body by diving causes decompression sickness. Here, from the viewpoint of more reliably preventing decompression sickness, AA Buhlmann's “Decompression-Deco
mpression Sickness, '' Springer, Berlin (1984), pp.
The calculation method described in 14 is also under consideration.

In the divers information display device 1 of the present embodiment, as shown in FIG. 8, the divers information display device 1 of the present embodiment calculates the amount of nitrogen in the body as a partial pressure.
The pressure sensor 34, the amplifier circuit 35, and the A / D shown in FIG.
The water depth measuring means 61 using the conversion circuit 36, the respiratory air nitrogen partial pressure calculating means 62 realized as the functions of the CPU 51, the ROM 53, and the RAM 54 shown in FIG. 2, and the R shown in FIG.
Respiratory gas nitrogen partial pressure storage means 63 utilizing AM54, FIG.
The internal nitrogen partial pressure calculation means 64 realized as the functions of the CPU 51, the ROM 53, and the RAM 54 shown in FIG. 2, the internal nitrogen partial pressure storage means 65 using the RAM 54 shown in FIG. 2, and the time counter 33 shown in FIG. Time keeping means 6
8, CPU 51, ROM 53, RAM 54 shown in FIG.
2, which is realized as a function of, and compares the data stored in the respiratory air nitrogen partial pressure storage means 63 and the internal nitrogen partial pressure storage means 65, the CPU 51 shown in FIG.
53, a half-saturation time selecting means 67 realized as a function of the RAM 54. Of these components, the respiratory air nitrogen partial pressure calculation means 62, the internal nitrogen partial pressure calculation means 64, the comparison means 66, and the half-saturation time selection means 67 are implemented as software in the CPU 51, ROM 53, and RAM 54 of FIG. It is feasible, but it is also possible to implement it by only a logic circuit which is hardware, or by combining a logic circuit and a processing circuit including a CPU and software.

In this configuration example, the water depth measuring means 61 measures and outputs the water pressure P (t) corresponding to the time t.

The respiratory air nitrogen partial pressure calculating means 62 calculates and outputs the respiratory air nitrogen partial pressure PIN2 (t) based on the water pressure p (t) output from the water depth measuring means 61. The respiratory air nitrogen partial pressure PIN2 (t) can be calculated from the water pressure P (t) in the dive by the following equation PIN2 (t) = 0.79 * P [bar].

The respiratory air nitrogen partial pressure storage means 63 stores the P calculated by the respiratory air nitrogen partial pressure calculation means 62 according to the above equation.
The value of IN2 (t) is stored.

The internal nitrogen partial pressure calculating means 64 determines the internal nitrogen partial pressure PGT for each tissue having different nitrogen absorption / exhaustion rates.
Calculate (t). Taking one tissue as an example, the nitrogen partial pressure P in the body is absorbed / exhausted from the dive time t = t0 to tE.
GT (tE) is the nitrogen partial pressure PGT (t0) in the body at t0
And dive time tE and half saturation time TH. Then, the result is stored in the internal nitrogen partial pressure storage means 65 as PGT (tE). The calculation formula for this is as follows.

[0057]

[Equation 1]

Here, k is a constant obtained experimentally.

Next, the comparing means 66 compares PIN2 (t), which is the result of the respiratory air nitrogen partial pressure storing means 63, with PGT (t), which is the result of the internal nitrogen partial pressure means 5, and as a result, The saturation time selecting means 67 makes the half saturation time TH used in the internal nitrogen partial pressure calculating means 64 variable.

For example, the breathing nitrogen partial pressure P at t = t0
If IN2 (t0) and the internal nitrogen partial pressure PGT (t0) are stored in the respiratory gas nitrogen partial pressure storage means 63 and the internal nitrogen partial pressure storage means 65, respectively, the comparison means 66 compares them with PIN2 (t0). Compare PGT (t0).

The internal nitrogen partial pressure calculating means 64 is controlled by the half-saturation time selecting means 67 as follows, and t
The nitrogen partial pressure PGT (tE) in the body at = tE is calculated.

[0062]

[Equation 2]

[0063]

[Equation 3]

In the above two equations, k is a constant and TH2 <
Calculated as TH1.

PGT (t0) = PIN2 (t0)
In this case, the half-saturation time TH is preferably calculated as TH = (TH2 + TH1) / 2. Also, these times (t0 and t
The measurement for E) is managed by the timing means 68 in FIG.

Here, PGT (t0)> PIN2 (t0
) Is when nitrogen is excreted from the body,
When PGT (t0) <PIN2 (t0), nitrogen is absorbed into the body. Changing the half-saturation time at these times means that the half-saturation time is long when nitrogen is discharged, and it takes time to discharge the nitrogen. Conversely, the half-saturation time is changed when nitrogen is absorbed. It is short and the time taken for absorption is short compared to the time taken for discharge. By doing this, the simulation of the amount of nitrogen in the body can be performed more strictly, so by setting the upper limit of the amount of nitrogen in the body, the time that can be dive without decompression and the surface of the water can be seen from the current amount of nitrogen in the body. After that, it is possible to determine the time until the amount of nitrogen in the body returns to the normal state. Therefore, if the diver is informed of such information, the safety of diving can be enhanced.

[Explanation of each mode] The information display device 1 thus configured has each mode (time mode ST1, surface mode ST2, planning mode ST3, setting mode ST4, diving) described below with reference to FIG. It can be used in mode ST5 and log mode ST6). It should be noted that FIG. 9 shows only the items displayed in the display area 11A of the display area of the liquid crystal display panel 11.

(Time mode ST1) Time mode ST1
Is a function when the switch is not operated and when the nitrogen in the body is in an equilibrium state and is carried on land. The liquid crystal display panel 11 has a current date 100, a current time 101, and an altitude rank 102 (see FIG. 1). If the altitude rank is rank 0, the mark is not displayed.) Is displayed. The altitude rank 102 automatically measures the altitude of the current location and displays it in three ranks. At the current time 101, the display of the current time 1
Notify that it is 01. For example, in the state shown in FIG. 9, it is displayed that it is now 10:06 on December 5th.

Further, the atmospheric pressure changes when the user goes up and down at a high altitude and a low altitude, and the dissolution of nitrogen into the body and the discharge of nitrogen occur regardless of the presence or absence of past diving. Therefore, in the information display device 1 of the present embodiment, the time mode ST1
Even if there is such an altitude change, decompression calculation is automatically started and the display changes. That is, although not shown, the time after the altitude changes, the time until the internal nitrogen reaches an equilibrium state, and the amount of nitrogen that is discharged or dissolved from the present to the equilibrium state are displayed.

In this time mode ST1, when switch A is pressed, the mode directly shifts to planning mode ST3, and when switch B is pressed, the mode directly shifts to log mode ST6. After pressing the switch A, if the switch B is pressed for 5 seconds while the switch A is being pressed, the mode shifts to the setting mode ST4.

(Surface Mode ST2) The information display apparatus 1 automatically shifts to the surface mode ST2 when the diving operation monitor switch 30 which has been conducting is brought into an insulating state after the end of diving. This surface mode ST2
Is a function to be carried on land until 48 hours have passed since the last dive. This surface mode S
At T2, in addition to the data (current month 100, current time 101, altitude rank) displayed in time mode ST1, a guideline for changes in the amount of nitrogen in the body after the end of the dive is displayed. That is, the time until the excess nitrogen dissolved in the body is discharged and the equilibrium state is reached is 20 hours for discharging nitrogen in the body.
Displayed as 1. This body nitrogen discharge time 201 is
Count down the time to reach equilibrium. Nothing is displayed after the internal nitrogen discharge time 201 reaches 0 hour 00 minutes. In addition, the elapsed time after diving is the surface dwell time 2
02 is displayed, and the water surface down time 202 is timed starting with the time when the water depth becomes shallower than 1.5 m in the diving mode ST5 as the end of the diving,
After measuring up to 48 hours, no display is shown. Therefore, in the information display device 1, the surface mode ST2 is set on land until 48 hours have elapsed after the end of the diving.
And then the time mode ST1. In the state shown in FIG. 9, it is displayed that it is 11:58 on December 5, and 1 hour and 13 minutes have passed since the end of the dive. In addition, the amount of nitrogen dissolved in the body by diving performed so far is 4 in the body nitrogen graph 203.
It is displayed that it corresponds to the number of pieces, and the time from this state until the excess nitrogen in the body is discharged to reach the equilibrium state (internal nitrogen discharge time 201) is displayed as, for example, 10 hours 55 minutes. .

In this surface mode ST2, when switch A is pressed, the mode directly shifts to planning mode ST3, and when switch B is pressed, the mode directly shifts to log mode ST6. After pressing switch A, if switch B is pressed for 5 seconds with switch A pressed, the setting mode S
Move to T4.

(Setting Mode ST4) Setting Mode ST4
Is a function for performing ON / OFF setting of a warning alarm and setting of a safety level in addition to the setting of month / day 100 and current time 101. In this setting mode ST4,
Current month 100, year 106, current time 101, safety level (not shown), alarm ON / OFF (not shown), and altitude rank are displayed. Among these items, the safety level is usually It is possible to set two levels, that is, a level for performing decompression calculation of 1 and a level for performing decompression calculation premised on moving to a place of an altitude rank one rank higher after diving. The alarm ON / OFF is a setting for setting whether or not various warning alarms are sounded from the alarm device 37. If the alarm is set OFF, the alarms do not sound. Therefore, in a device such as the diver's information display device 1 in which the dead battery is particularly fatal, the power consumed for the alarm can be reduced, which is convenient.

In this setting mode ST4, every time the switch A is pressed, the setting item switches in the order of hour, second, minute, year, month, day, safety level, alarm ON / OFF, and the display of the corresponding portion blinks. To do. At this time, if switch B is pressed, the numerical value or character of the setting item changes, and if the switch is kept pressed, the numerical value or character changes rapidly. Alarm ON / O
When switch A is pressed while FF is blinking, the surface mode ST2 or time mode ST1 is returned to. If neither switch A or B is pressed for 1 to 2 minutes, surface mode ST2 or time mode ST
Automatically returns to 1.

(Planning Mode ST3) The planning mode ST3 is a mode for inputting the maximum depth of the next dive and the standard of the dive time. In this mode, depth of water 301, no decompression diving time 30
2, safety level, altitude rank, water surface down time 20
2. The internal nitrogen graph 203 is displayed. Water depth rank 3
The display of the rank of 01 changes from the low rank to the high rank in order, and the non-decompression diving possible time 302 at each water depth rank 301 is displayed. For example, water depth rank 301 is 9m, 12m, 15m, 18m, 21
m, 24m, 27m, 30m, 33m, 36m, 39
It changes every 5 seconds in the order of m, 42m, 45m, 48m. At this time, if the time mode ST1 shifts to the planning mode ST3, it is the first diving plan in which there is no excessive nitrogen accumulation in the body due to past diving.
When the body nitrogen graph 203 is 0 and the water depth is 15 m, the non-decompression dive time 302 is displayed as 66 minutes. Therefore, it can be seen that no-decompression diving is possible for less than 66 minutes at a water depth of 12 m or more and 15 m or less. On the other hand, if the transition from the surface mode ST2 to the planning mode ST3 is made, it is a plan of repeated diving in which excess nitrogen is accumulated in the body due to past diving. Maximum water depth is 15m
In this case, the non-decompression dive time 302 is displayed as 49 minutes. Therefore, it can be seen that no-decompression diving is possible for less than 49 minutes at a water depth of 12 m or more and 15 m or less.

In this planning mode ST3, if switch A is kept pressed for 2 seconds or more before the water depth rank 301 is displayed as 48 m, the surface mode ST2 is directly entered. Further, after the water depth rank 301 is displayed as 48 m, the time mode ST1 or the surface mode ST2 is automatically entered. Further, when there is no switch operation for a predetermined period, the surface mode ST2 or the time mode ST1 is automatically entered, which is convenient because it is not necessary to perform the switch operation each time. On the other hand, when the switch B is pressed, the log mode ST6 is directly entered.

(Diving mode ST5) The diving mode ST5 is a mode for diving. In the no-decompression diving mode ST51, the current water depth 501, diving time 502,
This is a function for displaying information necessary for diving, such as maximum water depth 503, non-decompression dive time 302, in-vivo nitrogen graph 203, and altitude rank. For example, in the state shown in FIG. 9, 12 minutes have passed since the dive was started, the water depth is 16.8 m, and it is displayed at this depth that no decompression diving can be continued for another 42 minutes. .
In addition, it is displayed that the maximum water depth to date is 20.0 m, and the current amount of internal nitrogen is the internal nitrogen graph 203.
A message indicating that the four marks are lit is displayed.

The dive time after the start of diving is also notified to the diver by the number of dolphins displayed in the annular display area 11B of the liquid crystal display panel 11, as described with reference to FIG.

In the diving mode ST5, as described above as a function of monitoring the ascending speed, rapid ascending causes decompression sickness. Therefore, the current ascending speed is obtained every 6 seconds, and the ascending speed and the current water depth are calculated. When the levitation speed obtained this time is faster than the levitation speed upper limit value, an alarm sound (floating speed violation warning) is emitted from the sounding device 37 at a frequency of 4 kHz for 3 seconds. , Liquid crystal display panel 1 so as to slow down the floating speed
In 1, the display of "SLOW" and the display of the current water depth are alternately blinked at a cycle of 1 Hz to give a floating speed violation warning. Further, the vibration generator 38 vibrates to warn the diver that the flying speed is violated. Then, when the ascending speed drops to a normal level, the ascending speed violation warning is stopped.

In the diving mode ST5, when the switch A is pressed, the current time 101 and the current water temperature 504 are displayed as the current time display mode ST52 only while the switch A is continuously pressed. In the state shown in FIG. 9, it is displayed that the time is now 10:18 and the water temperature is 23 ° C. In this way, diving mode ST5
When there is a switch operation to that effect, the current time 101 and the current water temperature are displayed only for a predetermined period.
Even if it is configured to always display only the data necessary for diving on a small display surface (no-decompression diving mode ST51), the current time 101 and the like can be displayed as needed (current time display mode ST52), It is convenient. Moreover, since the switch operation is used to switch the display even in the diving mode ST5 as described above, the information that the diver wants to know can be displayed at an appropriate timing.

During the dive mode ST5, when the water depth is shallower than 1.5 m, it is treated as if the dive is finished, and the dive operation monitor switch 30 which has been conducted is in the insulated state. Automatically shifts to surface mode ST2. In the meantime, the diving result recording means 78 shown in FIG. 3 indicates 1 from the time when the water depth becomes 1.5 m or more to the time when it becomes shallower than 1.5 m.
RAM for diving results (diving date, dive time, maximum water depth, etc.) during this period as one dive operation
It is stored and held in 54. At the same time, if the above-mentioned ascending speed violation warning is continuously issued twice or more during the current diving, that fact is also recorded as a diving result.

The information display device 1 of the present embodiment is constructed on the premise of no-decompression diving, but by any chance,
When a decompression diving state is reached, an alarm sound to that effect is provided to the diver, and the mode is switched to the decompression diving display mode ST53 below. That is, in the decompression diving display mode ST53, the current water depth 501, the diving time 502,
Internal nitrogen graph 203, altitude rank, decompression stop depth 50
5, the decompression stop time 506, and the total ascent time 507 are displayed. In the state shown in FIG. 9, 24 minutes have passed since the start of diving,
It is displayed that the water depth is 29.5 m.
Also, because the amount of nitrogen in the body exceeds the maximum allowable value and is dangerous, an instruction is displayed to ascend to a depth of 3 m and to stop decompression for 1 minute while maintaining a safe ascent speed. . In addition, an instruction to take a minimum of 5 minutes to reach the surface of the water as a safe ascent rate is displayed.
Furthermore, an upward arrow 508 indicates that the amount of nitrogen in the body is currently increasing. Therefore, the diver floats after stopping the decompression based on the above display contents, but while the decompression is being performed, the downward arrow 509 indicates that the amount of nitrogen in the body tends to decrease.

(Log Mode ST6) When the switch B is pressed in the time mode ST1 or the surface mode ST2, the mode directly shifts to the log mode ST6. Log mode S
T6 is a function of storing and displaying various data when the dive depth is deeper than 1.5 m in the diving mode ST5 for 3 minutes or more. Such diving data is sequentially stored as log data for each dive, and a maximum of 10 log data is stored and retained. When diving more than that, old data is deleted in order, and the latest 10 data are always recorded. The dive of is memorized.

In the log mode ST6, the log data is displayed on two screens that switch every 4 seconds. First
Screen ST61, diving date 601, average water depth 50
9, the dive start time 603, the dive end time 604, the altitude rank, and the body nitrogen graph 203 when the dive is finished are displayed. On the second screen ST62, the log number 605, which is the diving number on that day, the maximum water depth 608, the diving time 606, the water temperature 607 at the maximum water depth, the altitude rank,
The in-vivo nitrogen graph 203 at the end of the dive is displayed. For example, in the state shown in FIG. 9, when the altitude rank is 0, the second dive on December 5 has a dive of 1
It started at 0:07 and ended at 10:45,
It is displayed that the dive was for 38 minutes. In the diving at this time, the average water depth was 14.6 m, the maximum water depth was 26.0 m, and the water temperature at the maximum water depth was 23 ° C. After the diving was completed, the nitrogen graph 203 in the body dissolved four nitrogens into the body. The message is displayed. As described above, in the log mode ST6, various information is displayed while automatically switching between the two screens, so that a large amount of information can be displayed even if the display surface is small.

Further, the time when the dive is started, the dive time, and the time when the dive is finished are the position of the dolphin displayed in the annular display area 11B of the liquid crystal display panel 11 and the time when the dive is finished, as described with reference to FIG. Inform the diver of the number.

Further, in the log mode ST6, when the above-mentioned speed violation warning is issued twice or more during the diving currently displayed, the fact is notified, for example, on the liquid crystal display panel 1.
“SLOW” is displayed in the seventh display area 117.

In this log mode ST6, each time the switch B is pressed, the new data is switched to the old data, and after the oldest data is displayed, the time mode ST1 or the surface mode ST2 is entered. Even if the switch B is kept pressed for 2 seconds or more during the process, the mode is shifted to the time mode ST1 or the surface mode ST2. Further, even when neither of the switches A and B is pressed for 1 to 2 minutes, the surface mode ST2 or the time mode ST1 is automatically returned, which is convenient because it is not necessary to perform the switch operation each time. On the other hand, when the switch A is pressed, the mode directly shifts to the planning mode ST3.

(Function check) This time mode ST1,
Surface mode ST2, planning mode ST3,
During the setting mode ST4 and the log mode ST6, when it is detected that water has entered through the dive operation monitoring switch 30 shown in FIGS. 1 and 2, a function check is automatically performed,
If it is confirmed that the sensor is normal, the mode automatically shifts to the diving mode ST5, and the annular display area 1 of the liquid crystal display panel 11 is described as described with reference to FIG.
A dolphin is displayed on 1B to inform the diver that the sensor is normal. At this time, when there is an abnormality in the sensor or the like, the fact is notified by an alarm sound or the like from the alarm device 37 shown in FIG.

[Other Embodiments] The fact that water has entered the liquid crystal display panel is not limited to the case where a dolphin swims graphically around an annular region of the liquid crystal display panel as shown in FIG. As shown in FIG. 10, the upper area 11C or the lower area 11D of the liquid crystal display panel 11
You can also use the graphic display to make the dolphin swim.

The liquid crystal display panel 11 may quantitatively display not only the diving information currently performed but also the information corresponding to the history of the diving so far, quantitatively after the completion of the tying. For example, when the information corresponding to the diving history is displayed graphically on the liquid crystal display panel 11, for example, as shown in FIG. 11, the diving history can be changed by changing the form or the display position of the character displayed there. Display quantitatively. Figure 1
In the example shown in FIG. 1, a wave and a dolphin are displayed on the liquid crystal display panel 11, and the display position and posture of the dolphin are sequentially switched, so that the dolphin is jumping.

Here, when displaying information corresponding to the dive time of the last dive as the dive history, the longer the dive time is, the more frequent the jumps are because the dolphins are healthy. , It may indicate that the last dive time was long. According to such a display, it can be understood that the diver is tired because the last dive time was long, so if you plan the next dive schedule based on this display, considering the degree of fatigue of the diver. Good.

Further, when the information corresponding to the elapsed time since the last dive is displayed as the dive history, the longer the period is, the longer the dolphin is considered to be less energetic, and the longer the jump period is set. It may indicate that many days have passed since the dive. According to such a display, it has been a long time since the last dive,
Knowing that the diver's fatigue is recovering, he knows that he may plan a dive soon.

Further, when such a diver's information display device 1 is used as a wrist watch on land, when the time signal (alarm) is sounded in the timepiece mode or the surface mode, as shown in FIG. In addition, it is possible to emphasize that the diver's information display device 1 is worn on the arm by displaying the dolphin and bell used as symbols of this diver's information display device in a form visible from the wave. .

Further, in the embodiment shown in FIG. 1, the display area 11A and the annular display area 11B are formed on the circular display surface of the liquid crystal display panel 11, but the shape is not limited, and the circular display surface is not limited. Alternatively, a display surface having an elliptical shape, a square shape, a polygonal shape, a barrel shape, a track shape, or the like may be formed. In this case, the graph display area does not have to be annular and may have a discontinuity in a part thereof, such as a C-shape or a U-shape.

In the above embodiment, the diver's information display device 1 called a dive computer has been described as an example, but it is called a diver's watch for measuring and displaying only extremely general data such as water depth value and dive time. Needless to say, the present invention may be applied to the divers information display device.

[0096]

As described above, in the information display device for divers according to the present invention, when the diver starts water entry, the fact is displayed graphically on the display device.
The diver can easily check whether the device is operating normally. In addition, such a display has an advantage that the diver can recognize it at a glance, unlike digital display or character display of the water depth position.

In this case, if the configuration or display position of the character is repeatedly changed, there is an advantage that it is easier to visually recognize that the fact is displayed, unlike the stationary display.

In another mode of the present invention, diving information such as diving time is displayed in a graph display area arranged along the outer circumference of the display area. Therefore, unlike the digital display, since it is a graph display, there is an advantage that the diver can easily visually recognize the displayed contents. In addition, since the maximum length of the graph display area is ensured along the outer circumference of the display area, the elapsed time and the like can be displayed in small increments. Further, since the graph display area is formed along the outer circumference of the display area, there is an advantage that a sufficient area for digitally displaying various information can be secured inside the graph display area.

In this case, if the elapsed time is displayed in the graph display area corresponding to the position of the minute hand of the pointer type timepiece, the diver can confirm the displayed content with the same feeling as the conventional rotating bezel, so that there is no discomfort. , Easy to use. Moreover, not only the dive time but also the approximate dive start time can be confirmed.

When the elapsed time is graphically displayed by displaying a number of characters corresponding to the elapsed time in the graph display area, the angle range in which the characters are displayed corresponds to the dive time. It has the advantage of being easy to understand. In this case, if a maximum of 12 characters are displayed at an angle interval of 30 °, a display with good visibility can be performed.

Furthermore, when a symbol or a graphic having a directional form indicating the direction in which the graph extends is used as the character, the diver moves his or her line of sight in the direction indicated by the character and naturally confirms the entire display contents. Therefore, the display will not be mistaken.

Furthermore, when the shape change is repeated in the character corresponding to the starting point or the ending point of the graph,
A diver has the advantage that the display is easy to see, because the character that repeats the shape change is conspicuous.

In yet another form of the present invention, since the diving time last performed or the elapsed time since the last diving is graphically displayed as the diving history, the degree of fatigue of the diver and the diver, and the degree of recovery of physical strength are displayed. Since you can know it, you can plan the next dive schedule against it. Moreover, since such a display is a graphic display, unlike a digital display,
It's convenient because you can catch the feeling about it.

In the present invention, if the character is in the form of representing marine life, it can be characterized in the display that it is for divers. In particular, if such a marine creature has a form that represents a dolphin, which is respected as a guardian deity among divers, it can be further characterized as being for divers.

[Brief description of drawings]

FIG. 1 is a plan view showing a device body and part of an arm band of a diver's information display device to which the present invention is applied.

FIG. 2 is a block diagram of the entire information display device for divers to which the present invention is applied.

FIG. 3 is a block diagram for issuing a flying speed violation warning in the diver's information display device to which the present invention is applied.

FIG. 4 is an explanatory diagram showing a display form indicating that water has entered, which is displayed in the annular display area of the liquid crystal display panel in the divers information display device to which the present invention has been applied.

FIG. 5 is an explanatory diagram showing a display form of a dive time displayed in an annular display area of a liquid crystal display panel during a dive in a divers information display device to which the present invention has been applied.

FIG. 6 is an explanatory diagram showing a display form of the dive time displayed in the annular display area of the liquid crystal display panel after the end of the diving in the divers information display device to which the present invention has been applied.

FIG. 7 is an explanatory diagram showing another display mode of the dive time displayed in the annular display area of the liquid crystal display panel after the end of the diving in the divers information display device to which the present invention has been applied.

FIG. 8 is a block diagram for measuring the amount of nitrogen in the body in the diver's information display device to which the present invention is applied.

FIG. 9 is a flowchart showing each function of the diver's information display device to which the present invention is applied.

FIG. 10 is an explanatory diagram showing another display form indicating that water has entered, which is displayed on the liquid crystal display panel, in the divers information display device to which the present invention has been applied.

FIG. 11 is an explanatory diagram showing a display form of a dive history displayed on a liquid crystal display panel in a divers information display device to which the present invention has been applied.

FIG. 12 is an explanatory diagram showing a display form on a liquid crystal display panel when an alarm occurs in the divers information display device to which the present invention is applied.

[Explanation of symbols]

1 ... Information display device for divers 5 ... Operation part 10 ... Display device 11 ... Liquid crystal display panel 11A: Circular display area of liquid crystal display panel 11B: annular display area of liquid crystal display panel 30: Diving operation monitoring switch (diving operation monitoring means) 34 ... Pressure sensor 37: Sounding device 38 ... Vibration generator 50 ... Control unit 51 ... CPU 53 ... ROM 54 ... RAM 61 ... Water pressure measuring means (water depth measuring means) 68 ... Timekeeping means 78: Diving result recording means A, B ... switch ST1 ・ ・ ・ Time mode ST2 ・ ・ ・ Surface mode ST3 ... Planning mode ST4: Setting mode ST5: Diving mode ST6 ... Log mode

Continuation of front page (51) Int.Cl. ⁷ Identification symbol FI G04G 9/00 304 G04G 9/00 304Z (72) Inventor Hitoshi Toyoshima 3-3-5 Yamato, Suwa-shi, Nagano Seiko Epson Corporation ( 56) Reference JP 7-146383 (JP, A) JP 7-20266 (JP, A) JP 2-311786 (JP, A) JP 56-77781 (JP, A) JP HEI 6-102059 (JP, A) JP-A-5-157561 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G04G 1/00 B63C 11/02

Claims (11)

(57) [Claims] 1. A water input monitoring sensor for detecting that a diver has entered water, a time measuring means for measuring time, and a display means having a display panel for displaying at least a dive time based on a measurement result of the time measuring means. In the information display device for divers having a water depth measuring means for measuring the water depth, the display means, after the water is detected by the water monitoring sensor,
The predetermined water depth that can be estimated by the water depth measurement means to start diving
Repeat form or display position until measurement
After the character is displayed on the display panel while changing, the predetermined water depth is measured by the water depth measuring means.
Displays the dive time graphically or on the display panel.
An information display device for divers, which is characterized by displaying according to the display position of the character. 2. The display panel according to claim 1,
The first display area located in the center and the first display area
A second display area along the outer circumference, the display means
Represents the character or the graph in the second table
Information table for divers characterized by being displayed in the display area
Indicating device. 3. The display means according to claim 2,
Note When displaying the dive time in the second display area as a graph,
Position corresponding to the minute hand position at the start of diving in a hand-held watch
Graph extending from to the position corresponding to the minute hand position at the current time
Information display device for divers characterized by displaying
Place 4. The display hand according to claim 2,
The stage graphically displays the dive time in the second display area.
In this case, display as many characters as the dive time.
And an information display device for divers. 5. The display means according to claim 4,
Before displaying the dive time in the graph in the second display area
Display up to 12 characters at 30 ° angular intervals
An information display device for divers characterized by the above. 6. The character according to claim 4 or 5,
Kuta has a directional form that indicates the direction in which the graph extends.
A diver characterized by a provided symbol or figure
Information display device. 7. The method according to any one of claims 4 to 6,
The display means is a starting point of the graph of the character.
Character corresponding to, and the end of the graph
Form of at least one of the characters
The diver's information that is characterized by repeatedly changing
Information display device. 8. The method according to claim 1, wherein
The display means displays the display after diving is completed.
Quantitative graphical display of diving history on the panel
Information display device for divers characterized by: 9. The display means according to claim 8,
Graphical information equivalent to diving history on the display panel
When displaying, the form of the character displayed there or
Determines the dive history based on the length of the cycle for changing the display position.
Information display for divers characterized by quantitative display
apparatus. 10. The dive according to claim 8 or 9.
The history is that it is the dive time of the last diving
Information display device for divers. 11. The dive according to claim 8 or 9.
History is the time elapsed since the last dive
An information display device for divers characterized by the above.