JP3520395B2 - Individual safety information notification 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 an individual safety information notifying device such as a diver's information notifying device also called a dive computer. More specifically, it relates to a technique for setting a safety standard in such an individual safety information notification device.

[0002]

2. Description of the Related Art The method of calculating decompression conditions after diving performed in an individual safety information notification device for divers called a dive computer is described in KEN LOYST
et al.'s "DIVE COMPUTERS A CONSUMER'S GUIDE TO
HISTORY, THEORY & PERFORMANCE '''Watersport Publi
It is described in detail in shing Inc. (1991). Also, as a literature on the theory, see “Decompre” by AA Buhlmann.
ssion-Decompression Sickness '', Springer, Berlin (1
Details on 984). 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, “Decompression-Decomp” by AA Buhlmann.
ression Sickness '', Springer, Berlin (1984), pp.14
A calculation based on the following formula described in 1 is also considered.

[0003]

[Equation 1]

In this equation, PIig is the inert gas partial pressure of respiratory air, and k is a constant determined by the half-saturation time.

According to this equation, Pigt (t ₀ ) <PI
When ig, the internal inert gas partial pressure Pigt (t _E ) increases, that is, the inert gas is absorbed, and Pigt (t ₀ )>
When PIig, partial pressure of inert gas in the body Pigt (t _E ).
Will be reduced, that is, the inert gas will be discharged.

That is, the absorption / exhaust of the inert gas into the body is determined by the magnitude relationship between the partial pressure of the inert gas in the body and the inert gas in the respiratory air, regardless of the ascent and descent. Therefore, if we grasp the amount of inert gas in the body from this relationship,
After the end of the dive, you can know the time required for the amount of inert gas in the body to return to the normal state, that is, the time to be taken on the water surface before the next dive, so you can protect the diver from decompression sickness and Depending on the history of diving, the number of times of diving, which was considered to be twice a day, can be increased.
Further, from the viewpoint of preventing decompression sickness, it is also important to protect the floating speed to the water surface.

Therefore, the conventional individual safety information reporting device for divers has a certain algorithm for the information necessary to ensure the safety of the diver, for example, until the inert gas excessively accumulated in the body is discharged. The time and the safe ascent speed are calculated and displayed on a display unit such as a liquid crystal display panel.

[0008]

The object of the invention is to be Solved However, the conventional diver
With the individual safety information notification device for users, even if the user changes
Alternatively, even if the physical condition of the same user changes on that day, safety information is only obtained and notified by a certain algorithm, so that it does not exhibit its function sufficiently as a device that displays individual safety information. There is a problem. For example, the older the age, the more important the safety factor should be displayed.

In view of the above problems, according to the present invention, the die
An object of the present invention is to provide a bar-specific safety information informing device capable of obtaining and informing optimum safety information for each user or the same user for each physical condition of the day.

[0010]

In order to solve the above problems, in a diver's individual safety information notification device according to the present invention, a water depth sensor for detecting the water depth position of the diver during diving.
And a timekeeping means for measuring the dive time
Monitoring means for monitoring the activities, and safety information deriving means for obtaining information for diver safety diving based on measurement result of the detection result and the clock means of the water depth sensor as safety information, the safety information derivation da and a notification means for notifying the security information means is determined on the diver
In the individual safety information notification device for iber, the diver when the safety information is obtained from the safety information deriving means
It is characterized by having an individual condition input means capable of inputting an individual condition for each .

With the divers individual safety information notification device according to the present invention, when the user changes to a person with a different age or blood pressure, or when the same user changes his / her physical condition on the day and is concerned about it. By inputting such individual conditions, the safety standard is set and notified according to the standard corresponding thereto. Therefore, the individual safety information can be appropriately notified, and the diver can be conveniently used as the individual safety information notification device.

Further , the individual safety information for divers according to the present invention
In the notification device, it is preferable that the individual condition input means is configured so that two or more of the individual conditions can be input on the same screen to facilitate inputting them.

[0013]

Further, individual safety for divers according to the present invention
In the information notification device, the safety information, the levitation speed for the diver to float safely, the decompression possible dive time of the diver , or the time until the inert gas excessively accumulated in the body of the diver is discharged. Is included.

In addition, the individual safety for divers according to the present invention
In the information notification device, the safety information derivation means has a body inert gas amount derivation means for deriving the amount of inert gas accumulated in the body of the diver, and in the derivation result of the body inert gas amount derivation means. When the excess inert gas is accumulated in the body, the individual condition input means is configured to prohibit the input of the individual condition such that at least the safety information shifts to a looser side in terms of safety. Is preferred. In other words, it is displayed that it is dangerous to restart the dive as it is, but there is an input of the individual condition that the safety information shifts to the loose side in terms of safety. This is to protect the diver from such a danger, because the diver is dangerous if the display is switched to.

Further , the individual safety information for divers according to the present invention
In multicast notification apparatus, the individual condition input means, the age, body weight, blood pressure, pulse, body temperature, sex or less of the temperature,
It is preferable to input at least one as an individual condition.

[0017]

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] FIGS. 1 (A) and 1 (B) are a plan view showing a device body and a part of an arm band of an individual safety information informing device for divers of the present embodiment, respectively, and from 6 o'clock. It is a side view of the apparatus body. FIG. 2 is a block diagram thereof.

In FIG. 1, the individual safety information notifying device 1 for divers of this embodiment is also called a so-called dive computer, and measures the amount of nitrogen accumulated in the body during diving (nitrogen partial pressure in the body). From this measurement result,
It displays the rest time to be taken on land after diving. In this individual safety information notifying device 1, arm bands 3 and 4 are connected to a wristwatch device body 2 at a 6 o'clock side and a 12 o'clock side, respectively, and these wristbands 3 and 4 serve as a wristwatch. Similarly, it can be attached to the arm for use. In the device body 2, an upper case 21 and a lower case 22 are fixed in a completely watertight state by a method such as screwing, and a board (not shown) on which various electronic components are mounted is housed inside. ing.

A display section 10 using a liquid crystal display panel 11 is formed on the upper surface side of the apparatus main body 2, and switches A and B composed of two push buttons are formed on the wristwatch at 6 o'clock. There is. Therefore, the switch operation is easy even during diving. Here, the switches A and B are
As will be described later, the operation unit 5 is for selecting and switching each mode performed by the individual safety information notification device 1. A diving operation monitoring switch 30 using a moisture detection sensor for monitoring whether or not diving is started is formed on the upper surface side of the apparatus body 2 at the 9 o'clock side of the wristwatch. The diving operation monitor switch 30 is provided with two electrodes 31, 32 exposed on the upper surface of the apparatus main body. The electrodes 31, 32 are electrically connected by seawater or the like, and the electrodes 31, 32 are connected.
It is judged that the dive started when the resistance value between the two became small. However, the diving operation monitor switch 30 is used only for detecting that water has entered and for shifting to a diving mode, which will be described later, and does not detect that one tie is started. In other words, the arm wearing the individual safety information notification device 1 may only be immersed in seawater, and in such a case, it should not be treated as having started diving. Therefore, in the individual safety information notification device 1 of the present embodiment, the water depth (water pressure) is not less than a certain level, for example,
In this embodiment, it is considered that the dive has started when the water depth is deeper than 1.5 m, and it is considered that the dive has ended when the water depth becomes shallower than this water depth value.

(Structures of Monitoring Means and Notification Means) As shown in FIG. 2, the individual safety information notification device 1 of the present embodiment has a liquid crystal display panel 11 for displaying various kinds of information and notifying the user. The display unit 10 including the liquid crystal driver 12 that drives the display unit 10 performs processing in each mode,
A control unit 50 that causes the liquid crystal display panel 11 to perform display according to each mode 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.

Since the individual safety information notifying device 1 displays the normal time and measures the diving time, the clock output from the oscillation circuit 31 is supplied to the frequency dividing circuit 3 to the control unit 50.
A time counting unit 68 that is input via 2 and performs time counting in units of 1 second by the time counter 33 is configured.

Further, the individual safety information notifying 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), the amplifier circuit 35 for the output signal of the pressure sensor 34, and the analog signal output from the amplifier circuit 35 is converted into a digital signal and output to the control unit 50.
The water depth measuring means 61 including the / D conversion circuit 36 is configured. Further, the individual safety information notification device 1 is configured with a sounding device 37 and a vibration generating device 38, and can notify a diver of a warning or the like as an alarm sound or a vibration.

Thus, in this embodiment, the liquid crystal display panel 1
1, the sound emitting device 37, and the vibration generating device 38 constitute an informing means for informing the user of various kinds of information.

In the present embodiment, the control section 50 uses 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 stores it in the ROM 53. Each mode described below is realized by each process performed by the CPU 51 based on the executed program.

[Monitoring of Ascending Speed Information] The information processing apparatus 1 for divers monitors the ascending speed of the diver during a diving mode, which will be described later, and derives whether or not it is appropriate as safety information for the diver. Means are configured,
This unit is realized as the following configuration by utilizing the functions of the CPU 51, the ROM 53, the RAM 54, and the like.

That is, as shown in FIG. 3, in the individual safety information notifying device 1 for divers, the above-mentioned time measuring means 68 is used.
Based on the measurement result of the (monitoring means) and the measurement result of the water depth measuring means 61 (monitoring means), the levitation speed measuring means 75 for measuring the levitation speed during levitation, and the measurement result of the levitation speed measuring means 75 are preset. The floating speed upper limit value 76 is compared with the existing floating speed upper limit value 76, and if the current floating speed upper limit value 76 is higher than the floating speed upper limit value 76, a floating speed violation determining unit 77 is configured to warn that the floating speed is violated. Ascent rate measuring means 75,
It is realized as an arithmetic function of the CPU 51, the ROM 53, and the RAM 54 shown in FIG. Ascending speed violation judging means 77
Also, the CPU 51, the ROM 53, and the RAM 54 shown in FIG.
And a liquid crystal display panel 1 as a notifying means for notifying the determination result.
Functions such as display in 1 are used.

In this embodiment, the ascending speed violation determining 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. In the present embodiment, the following values are shown for each water depth range as the floating speed upper limit value 76: Water depth measurement value this time, floating speed upper limit value less than 1.8 m No warning 1.8 m to 5.9 m 8 m / min (about 0. 8m / 6 seconds) 6.0m-17.9m 12m / minute (about 1.2m / 6 seconds) 18.0m or more 16m / minute (about 1.6m / 6 seconds) is set. That is, in deep water,
This is because the water pressure ratio before and after ascending per unit time is small even when ascending at the same ascending speed, so that decompression sickness can be sufficiently prevented even if a relatively large ascending speed is allowed. On the other hand, when the water depth is shallow, the water pressure ratio before and after levitation per unit time is large even if the levitation speed is the same, so that only a relatively low levitation speed is allowed.

In the present embodiment, the water depth value per 6 seconds is stored in the ROM 53 as the upper limit value of the floating speed as shown in FIG.
As shown in, the water depth is measured every 1 second, but in order to prevent the movement of the arm wearing the individual safety information notification device 1 from affecting the ascent rate, the ascent rate is measured every 6 seconds. Since this is done, the difference between the current depth measurement value and the previous depth measurement value 6 seconds ago is calculated, and this difference is regarded as the ascent velocity, and compared with the above ascent velocity upper limit value (m / 6 seconds). Because it does.

Referring again to FIG. 3, the diver inputs the conditions (individual conditions such as age and blood pressure) to the ascending velocity violation determining means 77, and the determination as to the ascending velocity is adapted to the one that suits him / herself. The individual condition input means 99 is configured. As will be described later, the individual condition input means 99 allows the diver himself to input individual conditions such as his own age and blood pressure from the switches A and B in the setting mode.

In the individual safety information notifying device 1, the depth of water measured by the depth measuring means 61 becomes 1.5 m (the depth of water for judging the end of diving) from when it becomes deeper than 1.5 m (the depth of water for judging the start of diving). Dive result recording means 78 for storing and holding the dive result (various data such as diving date, dive time, and maximum water depth) in the RAM 54 as one dive operation until it becomes shallower than the value). Is configured,
This dive result recording means 78 is also the CPU 5 shown in FIG.
1. The functions of the ROM 53 and the RAM 54 are realized.
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 is 1.5 m (diving end judgment water depth value) from when the water depth value measured by the water depth measuring means 61 becomes deeper than 1.5 m (diving start judgment water depth value). Until the depth becomes shallow, the dive time is measured based on the measurement result of the timing means 68. If the dive time is less than 3 minutes, the dive during this period is not treated as one dive, and the dive result during that period is Do not record. 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.

As described above, in the individual safety information notification device 1 of this embodiment, since it is treated as the first dive when the water depth is deeper than 1.5 m for 3 minutes or more, the water depth is less than 1.5 m. When ascending to a shallow position, the water depth is considered to be 0 m, and the display is 0 m. Therefore, when the ascending speed violation warning is issued even in such a shallow place as in the deep place, there is an arm movement of several cm at a depth slightly below 1.5 m, and the depth of water is 1. Even if it is slightly shallower than 5m, it is 0m
If it is considered that the ascent rate is violated, the ascent rate violation warning will be issued. As a result, divers question the reliability of ascent speed warnings. However, in the present embodiment, when the current water depth is shallower than the predetermined value (1.5 m), the warning regarding the ascent velocity is not issued regardless of the ascent velocity. Therefore, since the above-mentioned unnatural warning is not issued, the reliability of this warning can be enhanced. That is, as shown in FIG. 4, for example, when the water depth previously measured during ascent is 1.8 m.
Then, levitate from this position as shown by the solid line L11, and
If the current water depth measured after a lapse of seconds is less than 1.5 m (water depth value for determining the end of diving), the warning that the ascending speed is violated is not issued.

[Description of Display Unit] Referring again to FIG. 1A, the display surface of the liquid crystal display panel 11 has eight display regions. As will be described later in detail, of these eight display areas, the first display area 111 located on the 12 o'clock side of the wristwatch is the largest of the respective display areas, and there is a diving mode described later. , Surface mode (time mode), planning mode, log mode, current depth, current month, date, depth rank,
The dive date (log number) is displayed. The second display area 112 located at the 3 o'clock side of the first display area 111
Displays the dive time, the current time, the no-decompression dive time, and the dive start time (diving time) in the diving mode, the surface mode (time mode), the planning mode, and the log mode, respectively. First display area 111
In the third display area 113 located on the side of 6 o'clock, the maximum water depth, the nitrogen discharge time in the body, the safety level, and the maximum water depth (diving mode, surface mode (time mode), planning mode, and log mode ( Average water depth) is 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. 6 from the third display area 113
In the fifth display area 115 located on the hour side, a power capacity exhaustion warning and a high rank are displayed. Liquid crystal display panel 1
In the sixth display area 116, which is located on the most 6 o'clock side of 1, the amount of nitrogen in the body is displayed as a graph. In addition, the seventh display area 11 located at the 3 o'clock side of the sixth display area 116.
Area 7 indicates whether nitrogen (inert gas) tends to be absorbed or discharged when a decompression dive state is entered in the diving mode, and ascent rate violation warning 1 indicating that the ascent rate is too high. Area that displays "SLOW" as
And "D" as a warning that decompression diving was reached during the dive.
An area for displaying "ECO" is configured.

As described above, the display area of the liquid crystal display panel 11 has the largest area (first display area 111) for displaying the current water depth in the diving mode. It is easy to see the current depth display. Moreover, since the display surface of the liquid crystal display panel 11 is recessed from the upper surface of the upper case 21, even if there is a step around the display surface of the liquid crystal display panel 11 due to the upper case 21, the current water depth in the diving mode is Since the display area (first display area 111) is arranged on the 12:00 side, the display of the current water depth is not hidden by the step. Therefore, also from this point, in the individual safety information notification device 1 of the present embodiment, it is easy to visually recognize the display of the current water depth which is important data.

[Structure of means for deriving non-decompressible dive time and in-vivo nitrogen discharge time] In the individual safety information notification device 1 for divers according to the present embodiment, as will be described below, nitrogen contained in inhalation is absorbed in the body. By simulating the state of being absorbed and discharged, how long you can dive in the state of no-decompression diving at the water depth judged from the current nitrogen content in the body (no-decompression diving time), and the previous A safety information deriving means for deriving, as diver's safety information, how long the nitrogen excessively dissolved in the body during diving is discharged on the water surface (internal nitrogen discharging time) is also configured.

FIG. 5 shows an individual safety information notifying apparatus 1 of this embodiment.
3 is a functional block diagram for explaining a configuration example for calculating a partial pressure of nitrogen in the body (amount of nitrogen in the body) in FIG. 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.

As shown in FIG. 5, in the individual safety information notification device 1 of the present embodiment, in order to calculate the amount of nitrogen in the body as a partial pressure, the pressure sensor 34, the amplification circuit 35, A shown in FIG.
Water depth measuring means 61 using the D / D conversion circuit 36, respiratory air nitrogen partial pressure calculating means 62 realized as a function of the CPU 51, the ROM 53, and the RAM 54 shown in FIG. 2, and the respiratory air nitrogen using the RAM 54 shown in FIG. Partial pressure storage means 63,
The internal nitrogen partial pressure calculating means 64 realized as the functions of the CPU 51, the ROM 53, and the RAM 54 shown in FIG. 2, and the internal nitrogen partial pressure storing means 6 using the RAM 54 shown in FIG.
5, the clock means 68 using the time counter 33 shown in FIG. 2, the CPU 51, the ROM 53, and the RAM shown in FIG.
Which is realized as a function of 54, and is a respiratory gas nitrogen partial pressure storage means 6
3, a comparison means 66 for comparing the data stored in the internal nitrogen partial pressure storage means 65, the CPU 51, R shown in FIG.
A half-saturation time selecting means 67 is realized as a function of the OM 53 and 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
Although it can be realized as software by the CPU 51, the ROM 53, and the RAM 54 in FIG. 2, it can also be realized by only a logic circuit which is hardware, or a combination of a processing circuit including a logic circuit and a CPU and software. is there.

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 PIN ₂ (t) based on the water pressure P (t) output from the water depth measuring means 61. The respiratory air nitrogen partial pressure PIN ₂ (t) can be calculated by the following equation PIN ₂ (t) = 0.79 × P [bar] from the water pressure P (t) in the dive.

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 IN ₂ (t) is stored.

The in-vivo nitrogen partial pressure calculating means 64 calculates the in-vivo nitrogen partial pressure PGT for each tissue having different absorption / exhaust rates of nitrogen.
Calculate (t). Taking one tissue as an example, the nitrogen partial pressure P in the body is absorbed / extracted from the dive time t = t ₀ to t _E.
GT (t _E) is, t ₀ o'clock tissue nitrogen partial pressure PGT (t ₀₎
And the dive time t _E and the half saturation time T _H.

As shown in FIG. 6, the half-saturation time T _H here means that the internal nitrogen partial pressure PGT (t _E ) is t ₀ when the internal nitrogen partial pressure PGT (t ₀ ) is below this water depth. In the process of reaching the respiratory air nitrogen partial pressure PIIG, the internal nitrogen partial pressure PGT (t
It corresponds to the time (half time) until the intermediate pressure between ₀ ) and the respiratory gas nitrogen partial pressure PIIG is reached.

The internal nitrogen partial pressure thus obtained is stored in the internal nitrogen partial pressure storage means 65 as PGT ((t _E ), as can be seen from FIG.
The calculation formula for obtaining GT ((t _E ) is as follows.

[0045]

[Equation 2]

Here, k is a constant obtained experimentally.

Next, the comparison means 66 compares PIN ₂ (t), which is the result of the respiratory air nitrogen partial pressure storage means 63, with PGT (t), which is the result of the internal nitrogen partial pressure means 5, and as a result, by the half-saturation time selecting means 67, and variable half saturation time T _H as used tissue nitrogen partial pressure calculation unit 64.

For example, the respiratory air nitrogen partial pressure P at t = t ₀
If IN ₂ (t ₀ ) and the internal nitrogen partial pressure PGT (t ₀ ) 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 will use this PIN ₂ (T ₀ ) is compared with PGT ((t ₀ ).

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 (t _E ) in the body when = t _E is calculated.

[0050]

[Equation 3]

[0051]

[Equation 4]

Here, in the above two equations, k is a constant and T _H2 <
Calculated as T _H1 .

Note that PGT (t ₀ ) = PIN ₂ (t ₀ ).
In this case, the half-saturation time is preferably calculated as T _H = (T _H2 + T _H1 ) / 2. Also, these times (t ₀ and t
The measurement of _E ) is managed by the timing means 68 in FIG.

Here, PGT (t ₀ )> PIN
_{When 2} (t ₀ ), nitrogen is discharged from the body, and when PGT (t ₀ ) <PIN ₂ (t ₀ ), 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.

In this way, the individual safety information notifying device 1 for divers of the present embodiment is configured with the in-vivo nitrogen amount deriving means 60 that more closely simulates in-vivo nitrogen amount. If you set an allowable value for the internal nitrogen partial pressure in the body, the time required to reach this allowable value at a certain water depth (water pressure) (the time the diver can dive without decompression) and the internal nitrogen partial pressure on the water surface It is possible to accurately obtain the time until the equilibrium value decreases to the equilibrium value (internal nitrogen excretion time).
That is, the individual safety information notification device 1 for divers of the present embodiment also includes a diveable time deriving means 92 and a body nitrogen discharging time deriving means 91 for deriving the non-decompression diveable time and the in-vivo nitrogen discharging time as diver's safety information. It is configured.

Here, when there is an input to the individual condition input means 99, the body nitrogen amount deriving means 60 is made to derive the body nitrogen amount corrected according to the input result, and as a result, Corrections have been made to the derivation results of the non-decompressible dive time and the nitrogen excretion time in the body.
That is, when the diver inputs individual conditions such as age and blood pressure via the individual condition inputting means 99, the body nitrogen content deriving means 60 uses the above-mentioned half of the coefficient corresponding to the input result based on the above algorithm. By multiplying the saturation time T _H or the like, the amount of nitrogen in the body is derived in consideration of the individual conditions input by the diver. As a result, the available diving time deriving means 92 and the nitrogen discharge time deriving means 9 in the body
Correction is added to the non-decompressible dive time and the nitrogen discharge time in the body derived from 1.

Further, even when the diver inputs the individual conditions via the individual condition input means 99, the body nitrogen amount deriving means 60 is constructed so as to derive the body nitrogen amount with the above algorithm, In addition, based on this derivation result, the diver can directly receive the non-decompression diving possible time and the internal nitrogen discharge time derived by the diving possible time deriving means 92 and the internal nitrogen discharge time deriving means 91 through the individual condition input means 99. You may comprise so that a correction adapted to the input individual conditions may be performed. In the case of such a configuration, the functional block diagram of the individual safety information notification device 1 for divers of the present embodiment shown in FIG. 5 is modified as shown in FIG.

[Explanation of Each Mode] The individual safety information notifying apparatus 1 thus configured has each mode (time mode ST1, surface mode ST) described below with reference to FIG.
2, planning mode ST3, setting mode ST4, diving mode ST5, log mode ST6) can be used.

(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. 8, it is displayed that it is now 10:06 on December 5th.

Further, since the atmospheric pressure changes when the user goes up and down at a high altitude and a low altitude, the dissolution of nitrogen into the body and the discharge of nitrogen occur regardless of the past diving. Therefore, in the individual safety information notification device 1 of the present embodiment, even in the time mode ST1, when there is such an altitude change, the pressure reduction calculation is automatically started and the display is changed. 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 the switch A is pressed, the mode directly shifts to the planning mode ST3, and when the switch B is pressed, the mode directly shifts to the 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.

During this time mode ST1, FIG.
When it is detected that water has entered through the dive operation monitoring switch 30 shown in, the function check is automatically performed, and if it is confirmed that the sensor and the like are normal, the mode automatically shifts to the diving mode ST5. At this time, if there is an abnormality in the sensor or the like, the alarm device 37 shown in FIG. 2 gives an alarm to that effect.

(Surface Mode ST2) The individual safety information notifying apparatus 1 automatically shifts to the surface mode ST2 when the diving operation monitor switch 30 that has been conducting is brought into an insulating state after the end of diving. The surface mode ST2 is a function to be carried on land until 48 hours have passed since the last diving. In the surface mode ST2, in addition to the data (current month 100, current time 101, altitude rank) displayed in the time mode ST1, a guideline for changes in the amount of nitrogen in the body after the end of diving is displayed. That is, the excess nitrogen dissolved in the body is discharged and the time until the equilibrium state is reached is displayed as the body nitrogen discharging time 201. This body nitrogen discharge time 201
Counts down the time until the equilibrium state is reached.
Nothing is displayed after the internal nitrogen discharge time 201 reaches 0 hour 00 minutes. In addition, the elapsed time after diving is displayed as the water surface down time 202, and the water surface down time 202
Indicates that when the water depth becomes shallower than 1.5 m in the diving mode ST5, the diving is ended and the time measurement is started, and after the measurement is performed for 48 hours, no display is made. Therefore, in the individual safety information notification device 1, the surface mode ST2 is set on land until 48 hours have elapsed after the end of the dive, and thereafter the time mode ST1 is set.
Is. In the state shown in FIG. 8, it is currently 11:58 on December 5, and 1 hour 13 hours after the end of the dive.
It is displayed that minutes have passed. In addition, it is displayed that the amount of nitrogen dissolved in the body by diving performed so far corresponds to four nitrogen in the body nitrogen graph 203, 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 10 hours 55 minutes, for example.

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

During this surface mode ST2, when it is detected that water has entered through the diving operation monitoring switch 30, a function check is automatically performed, and if it is confirmed that the sensors are normal, the diving mode ST5
Automatically transitions to. At this time, when there is an abnormality in the sensor or the like, the alarm device 37 gives an alarm to that effect.

(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 individual safety information notification device 1 for divers 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, each 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.

During this setting mode ST4, when it is detected that water has entered through the diving operation monitoring switch 30, the function check is automatically performed, and if it is confirmed that the sensor is normal, the diving mode ST5 Automatically transitions to. At this time, when there is an abnormality in the sensor or the like, the alarm device 37 gives an alarm to that effect.

In the individual safety information notification device 1 for divers of the present embodiment, the individual condition input means 99 (FIGS. 3 and 5) is used so that the ascending velocity violation judgment is adapted to the individual condition such as one's own age and blood pressure. , 7)), and the condition can be changed by the setting mode ST.
When "4", "Pd" displayed in the third display area 113 is designated, and the screen is changed to another screen as described later.

(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 the 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.

During the planning mode ST3,
When it is detected that water has entered through the dive operation monitoring switch 30, a function check is automatically performed, and if it can be confirmed that the sensors are normal, the diving mode S
Automatically shift to T5. At this time, when there is an abnormality in the sensor or the like, the alarm device 37 gives an alarm to that effect.

(Diving mode ST5) The diving mode ST5 is a mode for diving. In the no-decompression diving mode ST51, the current 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. 8, 12 minutes have passed since the dive was started, the water depth is 16.8 m, and it is displayed that the user can continue non-decompression diving for another 42 minutes at this water depth. .
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.

Here, for the purpose of notifying the diver of the shift to the diving mode ST5, the display of the current water depth 501 or the like may be blinked. With this configuration,
Since the fact that the processing in the diving mode ST5 is being performed can be visually recognized on the display on the liquid crystal display panel 11, the diver does not have to worry about whether or not the diving mode ST5 is functioning normally, which is convenient. .

In the diving mode ST5, as described above as a function of monitoring the ascending speed, since sudden ascending causes decompression sickness, the current ascending speed is obtained every 6 seconds, and the ascending ascending speed and the current water depth are calculated. When the levitation speed obtained this time is faster than the levitation speed reference value, an alarm sound (floating speed violation warning) is issued 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. 8, 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 completed, 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.

Although the individual safety information notifying apparatus 1 of this embodiment is constructed on the premise of no decompression diving,
In the unlikely event of a decompression dive, the diver is notified by an alarm sound to that effect, and the mode is switched to the following decompression diving display mode ST53. That is, in the decompression diving display mode ST53, the current water depth 501, the diving time 502, the internal nitrogen graph 203, the altitude rank, the decompression stop depth 505, the decompression stop time 506, and the total ascent time 507 are displayed. In the state shown in FIG. 8, 24 minutes have passed since the start of diving, and 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 the downward arrow 509 indicates that the amount of nitrogen in the body tends to decrease during the decompression. .

(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. 8, 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.

In the log mode ST6, when the 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 11
“SLOW” is displayed in the seventh display area 117 of.

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. As described above, in the present embodiment, it is possible to directly switch between any of the planning mode ST3, the surface mode ST2, and the log mode ST6 by one switch operation. Therefore, since there is a high degree of freedom in the route of transition to each mode, it is possible to directly transition between the planning mode ST3 and the log mode ST6 with a single operation. It is convenient and easy to set up.

Further, during the log mode ST6, when it is detected that water has entered through the diving operation monitoring switch 30, a function check is automatically performed, and if it is confirmed that the sensor and the like are normal, the diving mode ST5 is entered. Migrate automatically. At this time, when there is an abnormality in the sensor or the like, the alarm device 37 gives an alarm to that effect. In this way, planning mode ST3, surface mode ST2 (time mode ST1), log mode S
Since it is possible to automatically shift to the diving mode ST5 from any of T6 and the setting mode ST4, for example, after checking the past diving record in the log mode ST6, or setting the diving plan in the planning mode ST3. It is convenient because you can immediately start diving. In addition, since it is possible to shift to the diving mode ST5 from any mode, there is no failure to know that it was not ready to shift to the diving mode ST5 and failed to shift to the diving mode ST5 only after starting diving, Easy to use. Moreover, when shifting to the diving mode ST5, a function check is performed in advance. When an abnormality is detected in the function checking, the shift to the diving mode ST5 is automatically stopped and an alarm is issued to that effect. With diving mode ST5
It's convenient because you don't have to make a mistake to move to, and you can notice abnormalities immediately. Moreover, because it does not fail to monitor the amount of inert gas accumulated in the body during diving,
It is also safe from the viewpoint of preventing decompression sickness.

(Structure of Individual Condition Input Means) In the individual safety information display device 1 for divers according to the present embodiment, as the safety information for ensuring the safety of the diver, the determination result of the ascent velocity for the diver to safely ascend. The user is informed of the time allowed for non-decompression diving by the diver, and the time for discharging nitrogen in the body. Here, the safety information is required for a general user as a model and is notified to the user as a display or a warning, but the individual safety information display device 1 for divers according to the present embodiment is more suitable for individual circumstances. In order to notify the safety information, the ascent rate violation determining means 77 shown in FIG. 3, the body nitrogen amount deriving means 60 shown in FIG. 5, the body nitrogen discharge time deriving means 91 shown in FIG. 7, and the diveable time. Derivation means 9
The individual condition input means 99 for inputting the individual condition to 2 is configured as follows.

First, as shown in FIG. 9A, in the setting mode ST4, the liquid crystal display panel 11 displays the current month / day 100, year 106, current time 101, safety level ((not shown)). The alarm is turned on / off (not shown), the altitude rank is displayed, and the item "Pd" is also displayed in the third display area 113. In the setting mode ST4, as described above, the switch A is turned on. Each time the button is pressed, the setting item changes in the order of hour, second, minute, year, month, day, safety level, alarm ON / OFF, "Pd", and the display of the corresponding part blinks.
When switch B is pressed while "Pd" is flashing,
As shown in FIG. 9B, the individual condition input screen (separate screen)
Switch to. In this individual condition input screen, for example,
The characters “AG” and the number “00” corresponding to the age are displayed in the first display area 111, and the third display area 11 is displayed.
In each of the 1st and 4th display areas 114, the character "Bp" and the number "000" corresponding to the blood pressure (maximum) are displayed. Further, in the second display area 112, "bC" for returning to the normal screen of the setting mode described above is displayed. Also on this screen, each time the switch A is pressed, the setting item is switched among age, blood pressure, and return to the setting screen, and the display of the corresponding portion blinks. When the age or blood pressure is blinking, pressing switch B changes the numerical value of the setting item, and if the switch is kept pressed, the numerical value advances. Therefore, the age can be set to "40" and the blood pressure can be set to "140". On this screen, when switch B is pressed while the display of "bC" for returning to the setting screen described above is blinking, the screen described above is returned to. As described above, in the present embodiment, since a plurality of individual conditions such as age and blood pressure are input on the same screen shown in FIG. 9B, the input is easy.

In this way, when the individual conditions are input in the setting mode ST4, the floating speed is determined thereafter.
When the user can be informed of the non-decompressible dive time and the in-vivo nitrogen excretion time, the user is informed of the contents including individual conditions such as the input age and blood pressure.

That is, with respect to the criteria for issuing a warning that the ascent rate is violated for the diver to safely ascend, the decompression-free dive time, and the body nitrogen excretion time, the age exceeds 30 years old, and Every time the age becomes 10 years older than that, a value multiplied by the coefficient shown in Table 1 is derived, and the result is notified. These numerical values are stored in the ROM 53 as a look-up table.

[0089]

[Table 1]

Therefore, even when diving under the same conditions, the older one gets the warning that the ascending speed is violated unless he / she ascends more slowly, and the dive time is shortened and the descent is stopped. You will be prompted to set a longer time.

Further, regarding the standard for issuing a warning that the ascent rate is violated in order for the diver to safely ascend, the time allowed for no decompression diving, and the time for discharging nitrogen in the body, the blood pressure falls outside the range of 100 to 120. And Table 2
The value multiplied by the coefficient shown in is derived. These numerical values are also stored in the ROM 53 as a pickup table.

[0092]

[Table 2]

Therefore, even if diving under the same conditions, a person whose blood pressure deviates from the predetermined range will be warned that he / she will violate the speed unless he / she rises more slowly. It is displayed to set a short and long pause time.

(Main Effects of the Present Embodiment) As described above, in the individual safety information notification device 1 of the present embodiment, when the user changes to a person of different age or blood pressure, or the same user, the physical condition of the day. In the case where there is a change in (blood pressure) and there is a concern, if such an individual condition is input, the safety standard is set according to the standard corresponding to it and the information is notified. Therefore, it has a high function as a device for displaying individual safety information.

(Other Embodiments) In the above-mentioned embodiment, the levitation speed for safely ascending the diver's time, the non-decompressible dive time, and the nitrogen excretion time in the body are appropriate based on individual conditions such as age and blood pressure. However, not limited to this, the user's weight, pulse rate, body temperature, sex, or outside temperature is input as individual conditions, and the ascending speed, non-decompressible dive time, or body nitrogen corresponding to that is input. The discharge time may be notified. Both of these conditions are important in terms of ensuring the safety of the diver. For example, if the body weight is lighter than normal, or if it is a woman, strict information that promotes safety should be reported. Moreover, even when there is a possibility that the physical condition is somewhat uneasy in view of the pulse rate and the body temperature, strict information that further promotes safety should be notified. Moreover, it is considered that strict information that further promotes safety should be notified when the outside air temperature is too low or too high.

Further, in the individual safety information notifying device 1 for divers according to the above-mentioned embodiment, the individual condition input means 99.
Is the setting mode ST4 if the input for changing the condition such as the determination of the ascending speed violation to suit the individual condition such as the blood pressure of the user is the mode of the surface mode ST2 or the time mode ST1. Although it was possible to change the conditions,
It may be configured such that it is permitted only when the time mode ST1 shifts to the setting mode ST4, and is prohibited when the surface mode ST2 shifts to the setting mode ST4. In particular, in the case where excess nitrogen remains in the body as seen from the derivation result of the in-vivo nitrogen amount deriving means 60, individual conditions are prohibited so that safety information shifts to a looser direction from a safety point of view. It is preferable to configure the condition input means 99. In other words, the body nitrogen excretion time was measured and displayed until this condition change was made, and the value that the body nitrogen excretion time should wait for a while before resuming dive It is dangerous if the nitrogen excretion time in the body suddenly shortens due to the change and suddenly switches to a value that allows resuming diving. However, if excessive nitrogen remains in the body, the individual condition input means 9
If the condition change by the input from 9 is prohibited, such a danger can be avoided.

[0097]

[0098]

[0099]

As described above, the die according to the present invention
With the individual safety information notification device for the bar, even if the user changes to a person with a different age or blood pressure, or if the same user changes his / her physical condition on the day and is concerned, such an individual condition can be set. If entered, the safety standard will be set and notified according to the standard. Therefore,
According to the present invention, a device for displaying individual safety information for divers is convenient.

[Brief description of drawings]

FIG. 1 (A) is a plan view showing a device body and part of an arm band of an individual safety information notification device for divers to which the present invention is applied, and FIG. 1 (B) shows the device body of a wristwatch at 6 o'clock. It is a side view when it sees from one direction.

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

FIG. 3 is a block diagram for giving a flying speed violation warning in an individual safety information notification device for divers to which the present invention is applied.

FIG. 4 is an explanatory diagram for explaining the purpose of not issuing a floating speed violation warning in a shallow place in the individual safety information notification device for divers to which the present invention is applied.

FIG. 5 is a diagram showing an individual safety information notification device for divers to which the present invention is applied.
FIG. 6 is a block diagram showing a function of deriving a nitrogen discharge time from the body.

FIG. 6 is an explanatory diagram showing the meaning of a half-saturation time (half time) used for measuring the amount of nitrogen in the body.

FIG. 7 is a block diagram showing a function of deriving an amount of nitrogen in the body, a non-decompressible dive time, and a nitrogen discharge time in the body in another diver's individual safety information notification device to which the present invention is applied.

FIG. 8 is a flowchart showing each function of the individual safety information notification device for divers to which the present invention is applied.

FIG. 9A is an explanatory diagram showing a screen of a normal setting mode in the divers' individual safety information notification device to which the present invention is applied, and FIG. 9B is for inputting individual conditions such as age and blood pressure. It is explanatory drawing which shows the screen.

[Explanation of symbols]

1 ... Individual safety information notification device for divers 5 ... Operation unit 10 ... Display unit 11 ... Liquid crystal display panel (notification means) 30 ... Diving operation monitoring switch 34 ... Pressure sensor 37. ..Sound reporting device (notifying means) 38 ... Vibration generator (notifying means) 50 ... Control unit 51 ... CPU 53 ... ROM 54 ... RAM 60 ... Nitrogen amount deriving means in body (Safety information deriving means) 61 ... Water depth measuring means (monitoring means) 62 ... Respiratory air nitrogen partial pressure calculation means 63 ... Respiratory air nitrogen partial pressure storage means 64 ... Body nitrogen partial pressure calculation means 65・ ・ ・ Nitrogen partial pressure storage means 67 ・ ・ ・ Half-saturation time selection means 68 ・ ・ ・ Time measurement means (monitoring means) 75 ・ ・ ・ Flying speed measuring means 76 ・ ・ ・ Flying speed upper limit 77 ・ ・ ・ Flying speed Violation determination means (safety information derivation means) 78 ... Water result recording means 91 ... Nitrogen discharge time deriving means (safety information deriving means) 92 ... Divable time deriving means (safety information deriving means) 99 ... Individual condition input 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 (72) Inventor Satoshi Chiba 3-5 Yamato, Suwa City, Nagano Seiko Epson Co., Ltd. (56) Reference JP-A-63-173788 (JP, A) JP Heihei 5-157562 (JP, A) JP-A-5-288869 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B63C 11/02

Claims (4)

(57) [Claims] 1. The depth position of a diver during diving is detected.
Equipped with a water depth sensor and timekeeping means to measure the dive time
Monitoring means for monitoring the activities of divers, and safety information deriving means for obtaining information for diver safety diving as a safety information based on the measurement result of the detection result and the clock means of the water depth sensor, said safety The safety information obtained by the information derivation means is transferred to the die.
A diver's individual safety information informing device having an informing means for informing a bar , having an individual condition inputting means capable of inputting an individual condition for each diver when obtaining the safety information with respect to the safety information deriving means. An individual safety information informing device for divers, which is characterized in that 2. The individual safety information notifying device for a diver according to claim 1, wherein the individual condition input means is configured so that two or more of the individual conditions can be input on the same screen. 3. The safety information as set forth in claim 1, wherein the diver has a floating speed for safely ascending, a diver's non-decompressible dive time, and an inert gas excessively accumulated in the diver's body. An individual safety information informing device for a diver , characterized in that it contains at least one piece of information of the time until the discharge. 4. The method according to any one of claims 1 to 3,
The individual condition input means is configured to input at least one of age, weight, blood pressure, pulse, body temperature, sex, and air temperature as the individual condition, and individual safety information for divers Notification device.