JP2001278192A - Parameter detecting transmitter, diving state management device, control method thereof and information processor for diver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continuously transmit and receive parameters by radio regardless of diving or non-diving and to continuously and accurately process information by continuously transmitting and receiving the parameters. SOLUTION: In transmitting and receiving the parameter between this parameter detecting transmitter for detecting the parameter corresponding to respiration gas used for diving and transmitting the parameter, and the information processor for a diver for managing the diving state on the basis of the transmitted parameter, data is ultrasonically transmitted and received underwater, and data is transmitted and received by radio on land (in the air). The data can thereby be transmitted and received positively and continuously regardless of diving or non-diving.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parameter detection transmission device, a diving condition management device, a control method thereof, and an information processing device for divers, and more particularly to a transmission technique for surely transmitting parameters.

[0002]

2. Description of the Related Art The loss of respiratory air during a dive is life-threatening and very dangerous for divers, and each diver uses his or her own to ensure safety. It is necessary to keep track of the residual pressure in the air tank. To this end, in order to monitor the residual pressure in the air tank, a residual pressure gauge has been used conventionally.
However, for a diver to use a residual pressure gauge,
A hose had to be used. In order to eliminate the inconvenience of using the hose, recently, the pressure in the air tank is measured with a pressure sensor attached to the air tank, and the obtained parameter (data) is transmitted through a transmission system using ultrasonic waves. The information is transmitted to a diver's information processing apparatus main body called a dive computer, and the diver's information processing apparatus main body performs processing such as displaying a residual pressure and calculating a dive time from the obtained residual pressure.

[0003]

By the way, in actual diving, before diving starts, on the ground or on board (in the air)
, It is usual to check the pressure of the container in advance. However, in the conventional information processing apparatus for divers, since communication is performed via a transmission system using ultrasonic waves, attenuation is large, and a transmission unit on the pressure sensor side and a reception unit on the main unit side of the divers information processing apparatus. Had to be close to the department. Therefore, the normal wearing state,
That is, when the diver carries the diver's information processing apparatus on his / her arm while carrying the air tank, there is a problem in that accurate parameter (data) confirmation cannot be performed.

[0004] In recent years, mixed gas diving using a mixed gas such as nitrox has been performed. In such diving, not only the air pressure but also the oxygen concentration is reduced from the air tank. It is important to be able to confirm this information both in air and underwater. In addition, these parameters (data) are not only confirmed by the diver who is the user, but also based on the obtained parameters (data) regardless of whether the diver is in the water or in the air. It is necessary to perform processing. However, in the above-mentioned conventional diver's information processing apparatus, if the user goes out of the water to the air during the dive, the parameter (data) cannot be normally communicated, and the calculation processing may be erroneous. Was. Therefore,
SUMMARY OF THE INVENTION An object of the present invention is to provide a parameter detection and transmission device capable of continuously transmitting and receiving parameters wirelessly regardless of when diving or not diving, a diving state management device, a control method thereof, and a continuous transmission and reception of parameters. An object of the present invention is to provide a diver's information processing device capable of performing highly accurate information processing.

[0005]

According to a first aspect of the present invention, a parameter corresponding to a breathing gas used for diving is detected, and the parameter is transmitted to an external diving state management device. What is claimed is: 1. A parameter detecting and transmitting apparatus for transmitting, comprising: first transmitting means for transmitting the parameter via a first transmission system; and transmitting the parameter via a second transmission system different from the first transmission system. A second transmitting means for performing the operation, an operating environment detecting means for detecting an operating environment of the parameter detecting and transmitting apparatus, and the first transmitting means when the detected operating environment is a predetermined first operating environment. Transmission control means for transmitting the parameter by using the second transmission means when the detected operating environment is a predetermined second operating environment. It is characterized in that was example.

According to a second aspect of the present invention, in the parameter detecting and transmitting apparatus according to the first aspect, the first operating environment is underwater, and the second operating environment is in the air.

According to a third aspect of the present invention, in the parameter detecting and transmitting apparatus according to the second aspect, the first transmission system comprises:
An ultrasonic transmission system, wherein the second transmission system is a radio wave transmission system.

According to a fourth aspect of the present invention, in the parameter detecting and transmitting apparatus according to the second aspect, the first transmission system comprises:
An ultrasonic transmission system, wherein the second transmission system is an optical transmission system.

According to a fifth aspect of the present invention, there is provided a diving state management device for receiving a parameter corresponding to a respiratory gas used for diving and managing a diver's diving state based on the received parameter. First receiving means for receiving the parameter via a transmission system, second receiving means for receiving the parameter via a second transmission system different from the first transmission system, and Receiving operation environment detecting means for detecting an operating environment, and when the detected operating environment is a predetermined first operating environment, the first receiving means is used to perform reception of the parameter. When the operating environment is a predetermined second operating environment, a reception control means for receiving the parameter using the second receiving means is provided.

A sixth aspect of the present invention is the diving condition management device according to the fifth aspect, wherein the first operating environment is underwater, and the second operating environment is in the air.

According to a seventh aspect of the present invention, in the diving condition management device according to the sixth aspect, the first transmission system is an ultrasonic transmission system and the second transmission system is a radio wave transmission system. It is characterized by.

According to an eighth aspect of the present invention, in the diving status management device according to the sixth aspect, the first transmission system is an ultrasonic transmission system and the second transmission system is an optical transmission system. It is characterized by.

According to a ninth aspect of the present invention, in the diving status management device according to the fifth aspect, a receiving state for determining whether the first receiving means or the second receiving means has normally received the parameter. Determining means, diving management information generating means for generating diving management information based on the received parameters, the diving management information generating means,
When one of the first receiving means or the second receiving means has changed from a state in which the parameter was received to a state in which the parameter can no longer be received based on a result of the determination by the reception state determining means. Is characterized in that the dive management information is generated based on the parameters already received.

According to a tenth aspect of the present invention, in the diving condition management device according to the fifth aspect, the reception control means is configured to determine that the operating environment is one of the first operating environment and the second operating environment. In the case of shifting to the other, it is characterized in that both the first receiving means and the second receiving means perform a receiving operation for a predetermined period of time.

According to an eleventh aspect of the present invention, there is provided a control method of a parameter detecting and transmitting device for detecting a parameter corresponding to a respiratory gas used for diving and transmitting the parameter to an external diving condition management device, An operation environment detection step of detecting an operation environment of the parameter detection transmission device,
When the detected operating environment is the predetermined first operating environment, the transmission of the parameter is performed via the first transmission system, and the detected operating environment is set to the predetermined second operating environment. A transmission step of transmitting the parameter via a second transmission system different from the first transmission system in some cases.

According to a twelfth aspect of the present invention, there is provided a control method for a diving condition management device for receiving a parameter corresponding to a breathing gas used for diving and managing a diver's diving condition based on the received parameter. A receiving operating environment detecting step of detecting an operating environment of the diving condition management device; and receiving the parameter via a first transmission system when the detected operating environment is a predetermined first operating environment. And performing a reception step of receiving the parameter via a second transmission system different from the first transmission system when the detected operation environment is a predetermined second operation environment. It is characterized by that.

According to a thirteenth aspect of the present invention, there is provided a parameter detecting / transmitting device according to any one of the first to fourth aspects, and a diving state management according to the fifth aspect to the tenth aspect. And a device.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment of the present invention will be described with reference to the drawings. [1] Overall Configuration FIG. 1 is a plan view showing a device main body and a part of an arm band of a diver's information processing apparatus according to the present embodiment. FIG. 2 is a schematic block diagram of a divers information processing apparatus. In FIG. 1, the diver's information processing apparatus 1 of the present embodiment is also called a dive computer, and measures the amount of nitrogen (internal nitrogen partial pressure) accumulated in the body during diving. It displays the rest time to be taken on land after diving. In the information processing apparatus 1 for divers, wrist bands 3 and 4 are respectively connected to a disk-shaped apparatus main body 2 in the vertical direction in the drawing, and the wrist bands 3 and 4 are attached to a user's arm similarly to a wristwatch. Is used. The apparatus main body 2 has an upper case and a lower case fixed in a completely watertight state by means of screws or the like, and incorporates various electronic components (not shown).

A display unit 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. I have. 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 used to select and switch each mode performed by the information processing apparatus 1 for divers, and to set various conditions. On the left side of the apparatus main body 2 in the drawing, a water entry monitoring switch 30 using a moisture detection sensor for monitoring whether or not diving has started is configured. The water entry monitoring switch 30 includes two electrodes 31 and 32 exposed on the upper surface of the apparatus main body 2, and these electrodes 31 and 32 conduct with seawater or the like, and the resistance between the electrodes 31 and 32 decreases. It is determined that water has entered when the water has entered.
However, the water entry monitoring switch 30 is used only to detect that water has entered and to shift to a diving mode described later, but does not detect that one tying has started. That is, the arm on which the information processing apparatus 1 for divers is mounted may be merely immersed in seawater, and in such a case, it should not be treated as having started diving. Therefore, in the diver's information processing apparatus 1 of the present embodiment, the water depth (water pressure) is equal to or more than a predetermined value by a pressure sensor (not shown) built in the apparatus main body 2.
For example, in the present embodiment, it is considered that the diving has started when the water depth has become deeper than 1.5 m, and that the diving has ended when the water depth has become shallower than this water depth value.

As shown in FIG. 2, the information processing apparatus 1 for divers according to the present embodiment has a liquid crystal display panel 11 and a liquid crystal display panel 1 for displaying various information and informing the user of the information.
Unit 10 having a liquid crystal driver 12 for driving the display unit 1
And a control unit 50 that performs processing in each operation mode and causes the liquid crystal display panel 11 to perform display according to each operation mode. Outputs from the switches A and B and the water input monitoring switch 30 are input to the control unit 50. Since the diver's information processing device 1 displays the normal time and measures the dive time, the clock output from the oscillation circuit 31 is input to the control unit 50 via the frequency dividing circuit 32, A clock section 6 in which the counter 33 measures time in units of one second.
8 are configured. Further, since the information processing apparatus 1 for divers measures and displays the water depth and measures the amount of nitrogen gas accumulated in the body from the water depth (water pressure) and the dive time, the pressure sensor 34 (semiconductor pressure) Sensor), an amplifier circuit 35 for amplifying the output signal of the pressure sensor 34, and an A / D converter for converting an analog signal output from the amplifier circuit 35 and a filter circuit 73 described later into a digital signal and outputting the digital signal to the control unit 50. A water depth measuring unit 61 (water pressure measuring means) including the circuit 36 is configured. Further, the information processing device 1 for divers is provided with a sound notification device 37 and a vibration generating device 38, which can notify a diver of a warning or the like as an alarm sound or vibration.

In this embodiment, the control unit 50 includes a CPU 51 for controlling the entire apparatus, and a control circuit 52 for controlling the liquid crystal driver 12 and the time counter 33 under the control of the CPU 51. Each operation mode, which will be described later, is realized by each process performed by the CPU 51 based on the stored program. Also,
The RAM 54 is used as a memory for recording diving results as log data, a working memory for performing various calculations, and the like. Furthermore, the information processing apparatus 1 for divers
A receiving unit 71 that receives various data including oxygen concentration data as mixing ratio information by ultrasonic waves, an amplifier circuit 72 that amplifies an output signal of the receiving unit 71, and a noise component or the like that is removed from the output signal of the amplifier circuit 72. Filter circuit 73 for outputting the data to the AD conversion circuit 36, a receiving unit 74 for receiving various data including oxygen concentration data as mixing ratio information by radio waves, and an amplifying circuit 75 for amplifying an output signal of the receiving unit 74.
A filter circuit 76 that removes noise components and the like from the output signal of the amplifier circuit 75 and outputs the signal to the AD conversion circuit 36;
It is provided with. Here, the configuration of the display unit will be described. Referring again to FIG. 1A, a plurality of display areas are provided on the display surface of the liquid crystal display panel 11, and the display performed in these display areas is basically as follows. First, the first display area 111 located on the upper side of the drawing of the wristwatch is the largest of the display areas, and includes a diving mode, a surface mode (time mode), a planning mode, and a log mode, which will be described later. Sometimes, the current water depth, the current month and day, the water depth rank, the diving month and day (log number), and the like are displayed.

A second display area 112 located on the right side of the drawing from the first display area 111 includes a diving mode, a surface mode (time mode), a planning mode,
In the log mode, the dive time, current time, dive time, and dive start time (dive time) are displayed. The third display area 113 located below the first display area 111 in the drawing has a maximum water depth, a body nitrogen discharge time, and a safety in the diving mode, the surface mode (time mode), the planning mode, and the log mode, respectively. The level and the maximum water depth (average water depth) are displayed. Fourth display area 1 located on the right side of the drawing from third display area 113
In the diving mode, the surface mode (time mode), the planning mode, and the log mode, the dive time, the water surface stop time, and the dive end time (the maximum water temperature at the depth of the water) are displayed in 14. In a fifth display area 115 located below the third display area 113 in the drawing, a power capacity exhaustion warning 104 and a high place rank 103 are displayed.
In a sixth display area 116 located at the 6 o'clock side of the liquid crystal display panel 11, the amount of nitrogen in the body is graphically displayed.

In the seventh display area 117 located on the right side of the drawing from the sixth display area 116, an area for displaying the concentration of oxygen gas is provided. A display area 117 as an area for displaying the oxygen gas concentration is an area indicating whether nitrogen (inert gas) tends to be absorbed or exhausted when the decompression diving state is entered in the diving mode, It is also used as an area for displaying "SLOW" as one of the ascent speed violation warnings indicating that the speed is too fast, and as an area for displaying "DECO" as a warning that decompression diving has been reached during diving. Further, in the present embodiment, an eighth display area 118 and a ninth display area 119 are formed in an area adjacent to the third display area 113 and the fourth display area 114 on the lower side in the drawing. These display areas 1
At 18, 119, information for protecting the diver from oxygen sickness (oxygen poisoning) is displayed based on which value the oxygen mixing ratio is set to, as described later.

[2] Configuration of Mixing Ratio Information Detection and Transmission Unit FIG. 3 is a schematic block diagram of the configuration of the mixing ratio information detection and transmission unit. The mixing ratio information detecting and transmitting unit 80 includes a CPU 81 that controls the entire mixing ratio information detecting and transmitting unit 80.
A ROM 82 storing programs and data for the CPU 81 to perform various processes, a RAM 83 for temporarily storing various data, and an operation monitoring switch 84 for monitoring whether or not diving has been started. An oxygen sensor 85 attached to a valve portion of the air tank, for detecting oxygen concentration, an amplifier circuit 86 for amplifying and outputting an output signal of the oxygen sensor 85, and converting an analog signal output from the amplifier circuit 86 into a digital signal. An A / D conversion circuit 87 to be output to the CPU 81 and oxygen concentration data corresponding to the oxygen concentration detected by the oxygen sensor 85 are selectively output to one of an ultrasonic signal generator and a radio signal generator 705 described later. A switching unit 700 and an ultrasonic signal generating unit 701 for generating an ultrasonic signal corresponding to the oxygen concentration data
And an ultrasonic transmission unit 702 that drives the piezoelectric element 703 based on the ultrasonic signal to transmit oxygen concentration data as ultrasonic waves to the reception unit 71 (see FIG. 2), and transmits a radio signal corresponding to the oxygen concentration data. A generated radio signal generator 705;
And a radio wave transmitting unit 706 that transmits oxygen concentration data, which is a radio wave, based on the radio wave signal to the receiving unit 74 (see FIG. 2) via the antenna 707. In this case, the operation monitoring switch 84 has the same configuration as the water input monitoring switch 30 (see FIG. 1), includes two exposed electrodes, and these electrodes conduct with seawater or the like. It is determined that the water has entered when the resistance value has decreased, and the switching unit 700 is switched to the ultrasonic signal generation unit 701 which is the ultrasonic transmission system (first transmission system). Conversely, when the electrodes become non-conductive and the resistance between the electrodes increases, it is determined that the electrode has risen from water, and the switching unit 700 is switched to a radio wave transmission system (second transmission system).
Is switched to the ultrasonic signal generator 701 side.

[3] Functional Configuration FIG. 4 shows the calculation of the amount of nitrogen in the body (the amount of inert gas in the body) in the information processing apparatus 1 for divers of the present embodiment. FIG. 3 shows a functional block diagram for calculating safety information such as possible time.
As shown in FIG. 4, the information processing apparatus 1 for divers includes:
The in-vivo nitrogen amount calculation unit 60 that simulates the manner in which nitrogen contained in the respiratory gas is absorbed into and exhaled from the body and calculates the in-vivo nitrogen amount (in-vivo nitrogen partial pressure) is configured. Note that the calculation of the amount of nitrogen in the body described below is merely an example, and it goes without saying that various methods can be used as a method of calculating the amount of nitrogen in the body.

In the body nitrogen amount calculation unit 60, first, in order to calculate the body nitrogen amount as a partial pressure, a water depth measurement unit using the pressure sensor 34, the amplification circuit 35, and the A / D conversion circuit 36 shown in FIG. 61, CPU 51 shown in FIG. 2, ROM
53, a respiratory nitrogen partial pressure calculation unit 62 realized as a function of the RAM 54, a respiratory nitrogen partial pressure storage unit 63 using the RAM 54 shown in FIG. 2, a CPU 51 shown in FIG.
M53, an internal nitrogen partial pressure calculation unit 64 realized as a function of the RAM 54, an internal nitrogen partial pressure storage unit 65 using the RAM 54 shown in FIG. 2, and a time counter 33 shown in FIG.
, A CPU 51 shown in FIG.
M53, a comparison unit 66 that is realized as a function of the RAM 54 and compares data stored in the respiratory nitrogen partial pressure storage unit 63 and the internal nitrogen partial pressure storage unit 65, and the CPU illustrated in FIG.
A half-saturation time selection unit 67 realized as a function of the ROM 51, the ROM 53, and the RAM 54 is configured.

Of these components, the respiratory nitrogen partial pressure calculating section 62, the internal nitrogen partial pressure calculating section 64, the comparing section 66, and the half-saturation time selecting section 67 are composed of the CPU 51 and the ROM of FIG.
53 and the RAM 54 can be realized as software, but can also be realized by using 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 unit 61 determines the water depth P corresponding to the time t.
(T) is measured and output. Respiratory nitrogen partial pressure calculator 62
Calculates and outputs the respiratory nitrogen partial pressure PIN2 (t) based on the water depth P (t) output from the water depth measurement unit 61. If the respiratory air is air and the oxygen mixture ratio is 21% and the nitrogen mixture ratio is 79%, the respiratory gas nitrogen partial pressure PIN2
(T) is calculated from the depth P (t) of the dive using the following equation: PIN2
(T) = 0.79 × P [bar] can be obtained by calculation. Here, P [bar] is an absolute pressure including the atmospheric pressure.

The respiratory nitrogen partial pressure storage unit 63 stores the PIN calculated by the respiratory nitrogen partial pressure calculating unit 62 as in the above equation.
2 Store the value of (t). The internal nitrogen partial pressure calculation unit 64
The body partial pressure PGT (t) is calculated for each compartment having different rates of nitrogen absorption / extraction. Taking one compartment as an example, the internal nitrogen partial pressure PGT ((tE) absorbed / exhausted from dive time t = t0 to tE is t
The body partial pressure PGT at 0 o'clock (t0) and the dive time tE,
It is calculated from the half saturation time TH.

As shown in FIG. 11, the half-saturation time TH refers to the respiratory nitrogen content under the water depth from the internal nitrogen partial pressure PGT (t0) at the time t0, as shown in FIG. In the process of reaching pressure PIIG
This corresponds to a time (half time) required to reach an intermediate pressure between (t0) and the respiratory nitrogen partial pressure PIIG. Taking one tissue as an example, the dive time t = t0 to tE
The exhausted body nitrogen partial pressure PGT (tE) is stored in the body nitrogen partial pressure storage unit 65 as the body nitrogen partial pressure PGT (tE) at the end of diving (t = tE0). The calculation formula for that is as follows. PGT (tE) = PGT (t0) + @ PIN2 (t0)-
PGT (t0)｝ × {1-exp (-K (tE-t0) /
TH)｝ Here, K is a constant obtained experimentally.

Next, the comparing unit 66 stores the internal nitrogen partial pressure PIN2 (t) stored in the respiratory nitrogen partial pressure storage unit 63.
And PGT which is a calculation result of the body nitrogen partial pressure calculation unit 64
(T) is compared, and as a result, the half-saturation time TH used in the internal nitrogen partial pressure calculation unit 64 is made variable by the half-saturation time selection unit 67. For example, the respiratory nitrogen partial pressure PIN2 (t0) at t = t0 is stored in the respiratory nitrogen partial pressure storage unit 63, and the internal nitrogen partial pressure PGT (t0) is stored in the internal nitrogen partial pressure storage unit 65. Suppose you have The comparison unit 66
The respiratory nitrogen partial pressure PIN2 (t0) and the internal nitrogen partial pressure P
GT (t0) is compared. And the internal nitrogen partial pressure calculator 6
4, the time t = t
The body partial pressure PGT (tE) at the time of E is calculated. (1) When PGT (t0)> PIN2 (t0) PGT (tE) = PGT (t0) + ｛PIN2 (t0) −
PGT (t0)｝ × {1-exp (-K (tE-t0) /
TH1)｝ (2) When PGT (t0) <PIN2 (t0) PGT (tE) = PGT (t0) + ｛PIN2 (t0) −
PGT (t0)｝ × {1-exp (-K (tE-t0) /
TH2)｝

In the above two equations, TH2 <TH1. When PGT (t0) = PIN2 (t0), the half-saturation time TH is preferably determined as in the following equation. TH = (TH1 + TH2) / 2 The measurement of time such as time t0 or time tE is managed by the timer 68 shown in FIG. Here, the reason why the half-saturation time TH differs between PGT (t0)> PIN2 (t0) and PGT (t0) <PIN2 (t0) will be described.

First, when PGT (t0)> PIN2 (t0), nitrogen is excreted from the body. Conversely, when PGT (t0) <PIN2 (t0), nitrogen is absorbed into the body. Is the case. That is, since the discharge of nitrogen takes a longer time than the absorption of nitrogen, the half-saturation time TH1 when nitrogen is discharged is set to be longer than the half-saturation time TH2 when nitrogen is absorbed. Since the simulation of the amount of nitrogen in the body can be performed more strictly by changing the half-saturation time between the time of discharge and the time of absorption, if the upper limit of the amount of nitrogen in the body is set, Thus, it is possible to obtain the time during which no decompression diving is possible or the time from when the body reaches the surface of the water until the amount of nitrogen in the body returns to a normal state. Therefore, if such information is notified to the diver, the safety during diving can be further improved. Therefore, if an allowable value of the nitrogen partial pressure in the body is set, the time required to reach this allowable value at a certain water depth (water pressure) (diveable time 302) and the partial pressure of the internal nitrogen on the water surface become an equilibrium value. It is possible to accurately determine the time until the temperature decreases (the nitrogen excretion time 201 in the body). In the following description, the dive time 3
02 indicates that no-decompression diving time or normal diving time is displayed according to diving conditions.

In the information processing apparatus 1 for divers of the present embodiment, a dive available time calculation unit 92 and a nitrogen release time calculation unit 92 calculate the decompressible diving time 302 and the in vivo nitrogen discharge time 201 as diver safety information. 9
1 is configured. Here, dive time calculation unit 9
2, and the body nitrogen excretion time calculation unit 91,
It is realized as a function of the CPU 51, the ROM 53, and the RAM 54 shown in FIG. The respiratory nitrogen partial pressure calculation unit 62
When calculating the respiratory nitrogen partial pressure PIN2 (t) based on the water depth P (t) output from the water depth measurement unit 61, the respiratory gas having a mixture ratio of oxygen and nitrogen different from air, as described later, Is used, the pressure of the mixed gas is set to P, and the pressure is calculated by the following equation. PIN2 (t) = (1−oxygen concentration) × P Here, in the case of nitrox gas, 1−oxygen concentration = nitrogen concentration (nitrogen mixture ratio). That is, when the oxygen mixture ratio is 32% and the nitrogen mixture ratio is 68%, PIN2 (t) = 0.68 × P [b
ar] When the oxygen mixture ratio is 36% and the nitrogen mixture ratio is 64%, the respiratory nitrogen partial pressure PIN2 (t) is determined from PIN2 (t) = 0.64 × P [bar].

[4] Description of Operation Mode The divers information processing apparatus 1 having the above configuration has a time mode ST1, a surface mode ST2, a planning mode ST3, a setting mode ST4, as described below with reference to FIG. Each operation mode of the diving mode ST5 and the log mode ST6 exists. Note that the characteristic operation and display of the diving mode ST5 in the present embodiment will be described later, and FIG. 5 shows an eighth display area 118 and a ninth display area 119 among the display areas of the liquid crystal display panel 11. The display is omitted.

[4.1.1] Time Mode The time mode ST1 is an operation mode in which the switch is not operated, the nitrogen partial pressure in the body is in an equilibrium state, and the mobile terminal is carried on land. Contains the current month and day 1
00, current time 101, and altitude rank 103 are displayed. When the altitude rank = 0, the altitude rank is not displayed. The current time 101 indicates to the user that the current display is the current time 101 by blinking a colon (:). Also, the seventh display area 1
17 displays the oxygen concentration based on the oxygen concentration data transmitted by the mixing ratio information detection transmission unit 80.
For example, in the state shown in FIG. 5 and FIG.
Current month 100 = December 5 and current time 101 =
It is 10:06, indicating that the current oxygen concentration is 36.5%.

By the way, the air pressure changes not only when diving, but also when moving between high and low altitudes above sea level. Therefore, regardless of whether or not diving has been performed in the past, nitrogen absorption and nitrogen discharge into the body are possible. Will happen. Therefore, in the information processing apparatus for diving of the present embodiment, when the operation mode is the time mode ST1, the decompression calculation is automatically started even when there is such a pressure change due to the altitude change. The display shifts to the decompression calculation result display.
That is, the time since the altitude (atmospheric pressure) is changed, the time until the nitrogen in the body reaches the equilibrium state, and the amount of nitrogen discharged or dissolved from the present time to the equilibrium state are displayed.

[4.1.2] Operation for shifting to another mode In this time mode ST1, when the switch A is pressed, the mode shifts to the planning mode ST3. Also, switch B
Pressing moves to the log mode ST6. Further, the switch B is kept pressed for a predetermined time (for example, 5 seconds).
If the button is kept pressed, the mode shifts to the setting mode ST4.

[4.2] Surface Mode The surface mode ST2 is a mode in which 48
This mode is for carrying on land until the time has elapsed.
The diving information processing apparatus 1 automatically switches to the surface mode S when the water entry monitoring switch 30 that has been in the conductive state during the diving is insulated after the previous diving is completed.
The process shifts to T2. In the surface mode ST2, the current month and day 100, the current time 101 and the altitude rank 10 displayed in the time mode ST1 are displayed.
In addition to 3, an indication of a change in the amount of nitrogen gas in the body after the end of the dive is displayed. In the seventh display area 117, the oxygen concentration based on the oxygen concentration data transmitted by the mixture ratio information detection transmission unit 80 is displayed. In other words, the time required for the excess nitrogen gas dissolved in the body to be exhausted to the outside of the body and to reach an equilibrium state is equal to the body nitrogen excretion time 20.
It is displayed as 1. This body nitrogen excretion time 201
The time until the nitrogen gas in the body reaches the equilibrium state is displayed as a countdown. And the body nitrogen excretion time 201 is
When the time to be displayed reaches 0 hour and 00 minutes, the display is not displayed thereafter. In addition, the elapsed time after the end of the diving is displayed as the water surface rest time 202. In the diving mode to be described later, the water surface stop time 202 starts counting the time when the next point at which the water depth becomes shallower than 1.5 meters is completed, and turns off the display when 48 hours have elapsed since the end of the diving. Become. Therefore, in the information processing apparatus 1 for diving, the surface mode ST2 is set on land until 48 hours after the end of the diving, and thereafter, the mode shifts to the time mode ST1.

The specific display screen in the surface mode ST2 is, as shown in FIGS. 5 and 6B, the current date 100 = December 5 and the current time 101 = 11.
It is 58 minutes, the water surface rest time 202 is 1 hour and 13 minutes, 1 hour and 13 minutes have passed since the end of the dive, and it indicates that the current oxygen concentration is 36.5%. In addition, it is displayed that the amount of nitrogen gas absorbed into the body by the diving performed so far corresponds to four marks in the in-vivo nitrogen graph 203, and from this state, excess nitrogen in the body is exhausted and an equilibrium state is established. It indicates that the time until the internal nitrogen excretion time 201 is 10 hours and 55 minutes.

[4.2.1] Operation for shifting to another mode In this surface mode ST2, pressing switch A shifts to the planning mode ST3. When the switch B is pressed, the mode shifts to the log mode ST6. Further, while pressing the switch A, the switch B is operated for a predetermined time (for example,
If the button is kept pressed for 5 seconds, the mode shifts to the setting mode ST4.

[4.3] Planning Mode The planning mode ST3 is an operation mode in which the maximum depth of the dive to be performed next and the standard of the dive time can be input. In the planning mode ST3, as shown in FIGS.
1, a dive time 302, a safety level, an altitude rank, a water surface rest time 202, and a body nitrogen graph 203 are displayed. In the seventh display area 117, the oxygen concentration based on the oxygen concentration data transmitted by the mixture ratio information detection transmission unit 80 is displayed. The display of the rank of the water depth rank 301 is sequentially changed every predetermined time. Each depth rank 301 is, for example, 9 m, 1 m,
2m, 15m, 18m, 21m, 24m, 27m, 30
m, 33m, 36m, 39m, 42m, 45m, 48m
And the display is switched every 5 seconds. In this case, if the mode has shifted from the time mode ST1 to the planning mode ST3, since there is no excessive nitrogen accumulation in the body due to past diving, that is, the initial diving planning, the display mark of the in-vivo nitrogen graph 203 is 0, depth of 15m
In this case, the display shows that no-decompression diving time is 66 minutes. This indicates that in the case of the above example, non-decompression diving is possible at a water depth of 12 m or more and 15 m or less and less than 66 minutes.

On the other hand, if the mode is shifted from the surface mode ST2 to the planning mode ST3, as shown in FIG. 7B, the repetitive diving is planned in which there is excessive nitrogen accumulation in the body due to past diving. For,
Four marks are displayed on the body nitrogen graph 203,
When the water depth is 15 m, the display shows that no-decompression diving time = 45 minutes. This indicates that in the case of the above example, non-decompression diving is possible at a water depth of 12 m or more and 15 m or less and less than 45 minutes. Here, dive time 3
02 has a different value if the nitrogen partial pressure of the respiratory gas changes.
However, in the present embodiment, the nitrogen mixture ratio (oxygen mixture ratio) of respiration may be externally changed for nitrox diving as described later, so that the nitrogen mixture ratio of the respiratory gas that is set at all times is diving. It is configured to be reflected in the calculation of the possible time 302.

[4.3.1] Operation to shift to another mode In this planning mode ST3, the water depth rank 3
Switch A is set to 2
If pressed for more than a second, the mode shifts to the surface mode ST2. After the depth rank 301 is displayed as 48 m, the mode automatically shifts to the time mode ST1 or the surface mode ST2. If the switch is not operated for a predetermined period, the surface mode ST2 or the time mode S
Since the process automatically shifts to T1, there is no need to perform a switch operation each time, which is convenient for the diver. Further, when the switch B is pressed, the mode shifts to the log mode ST6.

[4.4] Setting Mode In the setting mode ST4, as shown in FIG.
This is an operation mode for setting ON / OFF of a warning alarm, setting of a safety level, and manual setting of an oxygen concentration in addition to the setting of 0 and the current time 101. In this setting mode ST4, as shown in FIG. 8A, the current date 100, the current year 106, the current time 101, the safety level (not shown), the alarm on / off (not shown), the altitude rank And oxygen concentration are displayed. Of these items, the safety level is a level for performing normal decompression calculation, and a level for performing decompression calculation on the assumption that the user will move to a higher rank place after dive. It is possible to select a level. In addition,
If there is excessive nitrogen accumulation in the body due to diving in the past, a nitrogen graph 203 in the body is also displayed as shown in FIG. The ON / OFF of the alarm is a function for setting whether or not to sound various warning alarms from the sound notification device 37. If the alarm is set to OFF, the alarm does not sound. This is because a device such as the diver's information processing device 1 which needs to keep the battery dead as much as possible can be prevented from being inadvertently running out of battery due to power consumption due to an alarm. .

In this setting mode ST4, every time the switch A is pressed, the setting items are switched in the order of hour, second, minute, year, month, day, safety level, alarm on / off, and oxygen concentration manual setting (see FIG. 5). , The display of the setting target portion blinks. At this time, when the switch B is pressed, the numerical value or character of the setting item changes, and when the switch B is continuously pressed, the numerical value or character of the setting item changes quickly. Here, the manual setting of the oxygen concentration will be described in detail. The manual setting of the oxygen concentration is used by a diver who is a user instead of the automatic setting in an unexpected situation such as a failure of the transmission units 702 and 706 or the reception units 71 and 74.
The actual operation is performed when the density display is blinking.
Pressing the button moves to manual setting. In the initial state, the display of the seventh display section is "-..-%", and if the A button is pressed in this state, the control shifts to the detection timing setting at the time of the automatic setting without changing the automatic setting. Becomes By operating the B button while the display of the seventh display section is "-.-%", the oxygen concentration can be set. Then, when the setting of the oxygen concentration is completed, the set value is determined by pressing the A button. When the set value of the oxygen concentration is determined, the process shifts to the detection timing setting at the time of the automatic setting, and by operating the B button, “once” and “continuous”
Is selected and the A button is set.
In the “one-time” mode in the detection timing setting, since the transmitting unit 702 and the diver's information processing apparatus 1 do not always enter water at the same time, for example, for 5 minutes after the entry of water is detected, oxygen is supplied every second. After transmitting and receiving the concentration data, the transmission is stopped, and the main body of the information processing apparatus 1 for divers performs processing based on the received oxygen concentration data.

"One time" in this detection timing setting
This mode is used in normal diving because there is only one air tank and the calculation may be performed with the oxygen concentration value set at the start, so that there is no problem even if the reception operation is stopped. This is because it is preferable from the viewpoint of power consumption. In the “continuous” mode in the detection timing setting, in both the transmitting unit 702 and the diver's information processing device 1 main body, after detecting water entry,
Until the entry of water is no longer detected, for example, oxygen concentration data is transmitted and received every minute. As a result, the oxygen concentration can be continuously monitored during diving, and calculations can always be performed based on the actual concentration in the current air tank.Therefore, even when the oxygen concentration changes like a closed scuba, etc. You can do safe diving. Similarly, when diving by switching or replacing a plurality of tanks, there is no need to set the respective mixing ratios in the diver's information processing device 1 in advance, and the danger of forgetting to set can be avoided. When the switch A is pressed while the oxygen concentration display is blinking in the seventh display area 117, the display returns to the surface mode ST2 or the time mode ST1. Switch A,
For each of B, a predetermined period (for example, 1-2
If no operation is performed, the operation automatically returns to the surface mode ST2 or the time mode ST1.

[4.5] Diving Mode The diving mode ST5 is an operation mode during diving. As shown in FIG. 9, in the non-decompression diving mode ST51, the current water depth 501, dive time 502, and maximum water depth 50 are used.
3. This is an operation mode in which information necessary for diving, such as dive time 302, in-vivo nitrogen graph 203, and altitude rank, is displayed. For example, in the state shown in FIG. 9, it is displayed that 12 minutes have elapsed since the start of the diving, the water depth is 16.8 m, and at this water depth, non-decompression diving can be continued for another 42 minutes. I have. Further, it is displayed that the maximum water depth up to the present is 20.0 m, and that the current amount of nitrogen gas in the body is at a level where four marks in the body nitrogen graph 203 are lit. . In the diving mode ST5, since the rapid ascent causes decompression sickness, the ascent speed monitoring function operates. In other words, the current ascent rate is calculated every predetermined time (for example, every 6 seconds), and the calculated ascent rate is compared with the ascent rate corresponding to the current water depth. If it is faster, the alarm device 37 emits an alarm sound (floating speed violation warning alarm) at a frequency of 4 [kHz] for 3 seconds, and the liquid crystal display panel 11 sets the T, "SLO" on the liquid crystal display panel 11 so as to reduce the rising speed.
W "and the current depth are displayed at predetermined intervals (for example,
(1 second cycle) alternately to display a warning of ascent rate violation.

Further, the vibration generator 38 warns the diver by vibration that the flying speed is violated. When the ascent speed drops to a normal level, the ascent speed warning is stopped. In addition, diving mode S
At T5, when the switch A is pressed, the mode shifts to the current time display mode ST52 only while the switch A is kept pressed, and the current time 101 and the current water temperature 504 are displayed.
In the current time display mode ST52, the current time is 10:18 in the state shown in FIG.
It is indicated that 4 = 23 [° C.]. in this way,
Since the current time 101 and the current water temperature are displayed for a predetermined period when the switch operation is performed in the diving mode ST5, it is assumed that only data necessary for diving is normally displayed in a small display screen. (No-decompression diving mode ST1), the current time 101 and the like can be displayed as needed (current time display mode ST52), which is convenient. Moreover, in the diving mode ST5 as well, since the switch operation is used for switching the display, it is possible to display information desired by the diver at an appropriate timing. In the state of the diving mode ST5, when the water surface rises to a place where the water depth is shallower than 1.5 m, it is considered that the diving has been completed, and the dive operation monitoring switch 30 becomes insulated by the dive operation monitoring switch 30 being insulated. Automatically shifts to the surface mode ST2.

During this time, the diving result recording section 78 shown in FIG.
The dive results during this period (dive date, dive time, maximum depth, etc.) are defined as one dive operation from when the water depth becomes 1.5 m or more to when the water depth becomes less than 1.5 m again. (Various data) are stored and held in the RAM 54. At the same time, if the above-mentioned ascent speed violation warning is given two or more times continuously during this dive, that fact is also recorded in the diving result. The diver's information processing device 1 of the present embodiment is configured on the premise of non-decompression diving. However, when it becomes necessary to perform decompression diving, the diver is notified with an alarm to that effect. Further, the operation mode is shifted to the decompression diving display mode ST53. In the decompression diving display mode ST53, a current water depth 501, a dive time 502, a body nitrogen graph 203, an altitude rank, a decompression stop depth 505, a decompression stop time 506, and a total ascent time 507 are displayed. In the state shown in FIG. 9, it is displayed that 24 minutes have elapsed since the start of diving and the water depth is 29.5 m. In addition, since the amount of nitrogen gas in the body exceeds the maximum allowable value and is dangerous, an instruction is displayed to ascend to a depth of 3 m while maintaining a safe ascent speed, and stop decompression for 1 minute there. As a result, the diver floats after stopping the decompression based on the display content.

[4.6] Log Mode The log mode ST6 is a function for storing and displaying various kinds of data when diving for more than 3 minutes at a depth of more than 1.5m in a state shifted to the diving mode ST5. is there.
Such diving data is sequentially stored for each dive as log data, and a predetermined number (for example, 10 times) of diving log data is stored and held. When diving is performed for more than the maximum number of stored data, the oldest data is deleted in order, and the latest log data is always stored. Note that, even when diving is performed for a number of times equal to or greater than the maximum number of storages, a part of the log data can be retained without being deleted by setting in advance. This log mode ST6
To time mode ST1 or surface mode ST
In 2, it is possible to shift by pressing the switch B. In the log mode ST6, the log data has two screens that are switched every predetermined time (for example, 4 seconds). As shown in FIG. 10, on the first screen ST61, a dive month date 601, an average depth 609, a dive start time 603, a dive end time 604, an altitude rank,
The in-vivo nitrogen graph 203 at the time when the dive ends is displayed. On the second screen ST62, a log number 60 indicating the number of diving on the day of diving is displayed.
5, the maximum water depth 608, the dive time 606, the water temperature 607 at the maximum water depth, the altitude rank, and the in-vivo nitrogen graph 203 when the dive is completed are displayed. For example, in the state shown in FIG.
In the first dive, it is displayed that the dive started at 10:07, ended at 10:45, and was dive 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 607 at the maximum water depth was 23 [° C.]. This indicates that nitrogen gas was absorbed into the body.

As described above, the log mode ST6 of this embodiment is used.
In, since various information is displayed while automatically switching between two screens, even if the display screen is small, the amount of information that can be displayed can be substantially increased, and the visibility does not decrease. Further, in the log mode ST6, every time the switch B is pressed, the display is sequentially switched from new data to old data, and after the oldest log data is displayed, the mode shifts to the time mode ST1 or the surface mode ST2. Even when a part of the log data of all the log data has been displayed, the switch B is kept pressed for more than 2 seconds to switch the time mode ST1 or the surface mode S1.
The process can shift to T2. Further, even when neither of the switches A and B is operated for a predetermined time (1-2 minutes), the operation mode automatically returns to the surface mode ST2 or the time mode ST1. Therefore, the diver does not need to perform the switch operation, and the usability is improved. When switch A is pressed, planning mode ST
Move to 3.

[5] Operation of Divers Information Processing Apparatus Next, operations of the diver information processing apparatus will be described with reference to FIGS. FIG. 12 is an operation processing flowchart of the mixture ratio information detection transmission unit, and FIG.
It is an operation | movement processing flowchart of the information processing apparatus 1 for divers.

[5.1] Before diving When the diver attaches the mixing ratio information detection transmission unit 80 to the valve section of the air tank and turns on the power together with the diver's information processing apparatus 1, the oxygen sensor 85 measures the oxygen concentration. Is started (step S1), and a detection signal is output to the amplifier circuit 86. The amplification circuit 86 includes an oxygen sensor 85
Is amplified and output to the A / D conversion circuit 87.
The A / D conversion circuit 87 converts the analog signal output from the amplification circuit 86 into a digital signal and outputs the digital signal to the CPU 81 as oxygen concentration data (step S2). The operation monitoring switch 84 is still in a non-submersible state, so that it is in a non-conductive state.

As a result, since the diver is still before diving (step S3; No), the switching unit 100 uses the transmission system using radio waves to transmit the information to the diver's information processing apparatus 1.
In order to perform communication with the main body, the mode is switched to the radio signal generator 705 side. The radio signal generator 705 generates a radio signal corresponding to the input oxygen concentration data,
(Step S6). Thereby, the radio wave transmitting unit 7
In step 06, the oxygen concentration data, which is a radio wave, is transmitted to the receiving unit 74 (see FIG. 2) via the antenna 707 based on the radio signal. On the other hand, in the diver's information processing apparatus 1 main body, after various operations are performed (step S1).
1), it is in a data receivable state (step S12).
Next, the CPU 51 determines whether or not the diving operation monitoring switch 30 is in a conducting state, that is, whether or not the diver's information processing apparatus 1 body is in a water entering state (step S).
13). In this case, since it is still before diving, the CPU 51 performs radio wave reception so as to perform data reception in a transmission system using radio waves (step S18). That is,
The receiving unit 74 receives oxygen concentration data as mixing ratio information by radio waves, and outputs a received signal to the amplifier circuit 75.
The amplifying circuit 75 amplifies the received signal, which is the output signal of the receiving unit 74, and outputs the amplified signal to the filter circuit 76. The filter circuit 76 removes noise components and the like from the output signal of the amplification circuit 75 and outputs the signal to the A / D conversion circuit 36. As a result, the A / D conversion circuit 36 outputs oxygen concentration data (= measured value) to the CPU 51 (step S19).

The CPU 51 performs various settings and data storage based on the received oxygen concentration data (step S16), and performs various calculations (step S1).
7). More specifically, the CPU 51 determines how much the oxygen concentration is, for example, in the seventh display area 11 of the liquid crystal display panel 11 in the display unit 10 as shown in FIG.
FIG. In the state shown in FIG. 5, the oxygen concentration = 36.5.
% Is displayed. In the case where the air and oxygen concentrations are the same, if there is a margin in the number of display digits, "AIR" or the like may be displayed so that the diver can easily recognize that the air is air. Further, in the diver's information processing apparatus 1 according to the present embodiment, the current water depth value (water pressure value) measured by the water depth measurement unit 61 and the oxygen concentration detected by the mixture ratio information detection and transmission unit 80 are used. An oxygen partial pressure calculation unit 95 that calculates the respiratory oxygen partial pressure 906 at the position is configured (see FIG. 4).

The respiratory oxygen partial pressure 906 at the current water depth calculated by the oxygen partial pressure calculating unit 95 is, as shown in FIG. 6, the right side area of the eighth display area 118 of the liquid crystal display panel 11 on the display unit 10. Will be displayed. That is, in the present embodiment, the oxygen partial pressure calculating unit 95 determines whether or not the oxygen partial pressure is greater than the allowable oxygen partial pressure value when the respiratory oxygen partial pressure 906 exceeds the allowable oxygen partial pressure value. Based on the detection result and the measurement result (water pressure value) of the water depth measurement unit 61, the following formula is used. Respiratory oxygen partial pressure = (current water pressure + atmospheric pressure) × respiratory oxygen partial pressure from the mixing ratio of oxygen in the respiratory air. 90
6 is obtained, and its value is displayed on the liquid crystal display panel 11.
For example, if the oxygen concentration is 36% and the current water depth is 16 m, the corresponding water pressure value is 1.6 bar and the atmospheric pressure is assumed to be 1.0 bar. The partial pressure 906 becomes 0.9 bar.

[5.2] After Diving After that, when the diver starts diving, the operation monitoring switch 84 becomes conductive, and the CPU 81 detects that diving has started. Accordingly, the oxygen sensor 85 starts measuring the oxygen concentration (step S1) and outputs a detection signal to the amplifier circuit 86. The amplification circuit 86 includes an oxygen sensor 85
Is amplified and output to the A / D conversion circuit 87.
The A / D conversion circuit 87 converts the analog signal output from the amplification circuit 86 into a digital signal and outputs the digital signal to the CPU 81 as oxygen concentration data (step S2). At this time, since the operation monitoring switch 84 is in a diving state, it is in a conductive state, that is, since the diver is diving (Step S3; Yes), the switching unit 700 uses a transmission system using ultrasonic waves. Then, in order to communicate with the diver's information processing apparatus 1 main body, the apparatus is switched to the ultrasonic signal generator 701 side. The ultrasonic signal generator 701 generates an ultrasonic signal corresponding to the input oxygen concentration data,
02 (step S4). Accordingly, the ultrasonic transmission unit 702 drives the piezoelectric element 703 based on the ultrasonic signal, and receives the oxygen concentration data as ultrasonic waves from the reception unit 71 (FIG. 2).
(See step S5).

On the other hand, after performing various operations (step S11), the diver's information processing apparatus 1 enters a data receivable state (step S12). Next, CPU5
1 determines whether or not the diving operation monitoring switch 30 is in the conducting state, that is, whether or not the diver's information processing apparatus 1 body is in the water entering state (step S13). In this case, since the dive is underwater, the CPU 51 performs ultrasonic reception so as to perform data reception using a transmission system using ultrasonic waves (step S14). That is, the receiving unit 71 receives oxygen concentration data as mixing ratio information by ultrasonic waves, and outputs a received signal to the amplifier circuit 72. Amplifier circuit 72
Amplifies the received signal, which is the output signal of the receiving unit 71, and outputs the amplified signal to the filter circuit 73. The filter circuit 73
A noise component and the like are removed from the output signal of the amplifier circuit 72 and output to the A / D conversion circuit 36. As a result, the A / D conversion circuit 36 outputs the oxygen concentration data (= measured value) to the CPU 51.
Is output (step S15). Then, the CPU 51 performs various settings and storage of data based on the received oxygen concentration data (step S1).
6), various calculations are performed (step S17). by the way,
The allowable value of the respiratory oxygen partial pressure 906 is generally set to 1.6 bar from the viewpoint of preventing oxygen sickness. Therefore,
The diver has a respiratory oxygen partial pressure 906 of an allowable value (1.6b).
ar) If it is below, it is a proper diving,
You can protect yourself from oxygen sickness. It should be noted that the oxygen partial pressure calculating unit 95 is configured by the CPU 51 and the ROM 5 shown in FIG.
3. It is realized as a function of the RAM 54.

In the diver's information processing apparatus 1 according to the present embodiment, the current respiratory oxygen partial pressure 906 is changed to the allowable oxygen partial pressure value (1.6 bar) based on the calculation result of the oxygen partial pressure calculating section 95. An oxygen partial pressure determining unit 96 for determining whether or not the pressure exceeds the predetermined value is configured.
When 06 exceeds the allowable oxygen partial pressure value, the effect is notified to the diver as an alarm sound or vibration from the sound notification device 37 or the vibration generation device 38, and the liquid crystal display panel 11
Above, the display of the respiratory oxygen partial pressure 906 flashes. In this manner, a notification unit that notifies a diver that the respiratory oxygen partial pressure 906 exceeds the allowable oxygen partial pressure is realized. The oxygen partial pressure determination unit 96 is also configured by the CPU shown in FIG.
51, ROM 53, and RAM 54. In the diver's information device 1 of the present embodiment, an allowable water depth value calculation unit 93 that calculates an allowable water depth value 907 that is diveable by breathing air of the detected mixing ratio based on the detection result of the mixing ratio information detection transmission unit 80. Is also configured. This allowable water depth value calculation unit 93 also uses the CP shown in FIG.
It can be realized as a function of U51, ROM53, and RAM54.

In the present embodiment, when calculating the allowable water depth value 907 from the oxygen mixing ratio of the respiratory gas, it is considered that oxygen sickness occurs when the respiratory oxygen partial pressure 906 exceeds the allowable oxygen partial pressure value. From the permissible water depth value calculation unit 93
Is determined from the oxygen mixture ratio of the respiratory gas obtained based on the oxygen concentration obtained via the mixture ratio information detection and transmission unit 80 to which depth position the respiratory gas oxygen partial pressure exceeds the allowable oxygen partial pressure value. Is calculated. For example, the permissible water depth value calculation unit 93 calculates the permissible water depth value = (permissible oxygen partial pressure value / mixing ratio of oxygen in respiratory gas) −atmospheric pressure water depth conversion value; It is also possible to determine the allowable water depth value 907 from = 1.6 bar and display the value on the liquid crystal display panel 11 on the display unit 10. In this case, for example, if the oxygen concentration is 36%,
Since the allowable value of the respiratory oxygen partial pressure is 1.6 bar, it may be configured to display a message indicating that even if diving to a water depth of 34 m (allowable water depth value 907), oxygen sickness will not occur.

Furthermore, in the diver's information device 1 of the present embodiment, as described above, the diving time calculation unit 92 determines how long the dive can be performed at a certain water depth value after the current amount of nitrogen in the body, as described above. (A possible diving time 302), and a temporal change in the respiratory oxygen partial pressure to the present time derived from the measurement result of the timer 68 and the respiratory oxygen partial pressure 906 calculated by the oxygen partial pressure calculator 95. The dive time (dive time 30
2) is calculated. Here, the two dive possible times 302 obtained from different viewpoints may be displayed on the liquid crystal display panel 11, but in the present embodiment, the shorter of the two dive possible times 302 is used for the purpose of further enhancing safety. Is displayed. In the present embodiment, when the diving possible time 302 is obtained based on the respiratory oxygen partial pressure 906, the aforementioned Dick Rutko is used.
The values shown in Table 1 are used with reference to "Nitrox MANUAL" by wski.

[0062]

[Table 1]

The index TP of the dive time shown in Table 1
Means the maximum time during which you can dive without oxygen sickness. For example, if the respiratory oxygen partial pressure 906 is 1.6 bar from the beginning to the end, you can dive for 45 minutes, and the respiratory oxygen partial pressure 906 is from the beginning to the end. Up to 1.5 bar indicates that the user can dive for 120 minutes, and if the respiratory oxygen partial pressure 906 is 0.5 bar from beginning to end, the dive is infinite. Therefore, in this diving, the diving times tp at the respiratory oxygen partial pressures of 1.6 bar, 1.5 bar,... Have been t1.6 minutes, t1.5 minutes,.
· Then, (t1.6 / T1.6 + t1.5 / T1.5 +
·) = Σ (tp / Tp) is regarded as the degree of progression to oxygen sickness, and when the value becomes 1, it is treated as oxygen sickness. Therefore, the oxygen partial pressure calculating unit 95 determines how many minutes can be dive at the current respiratory gas and water depth position, that is, the current respiratory oxygen partial pressure Pox (oxygen mixture ratio × absolute pressure value). Using the index TPox of the dive time of dive of the following formula, dive time = TPoX x [1- (t1.6
/T1.6+t1.5/T1.5+..)]=TPox×[1
− {(Tp / Tp)] is calculated, and the value is displayed in the fourth display area 114 of the liquid crystal display panel 11 of the display unit 10. This value counts down over time in the fourth display area 114 of the liquid crystal display panel 11. The dive time 302 may be displayed as a graph.

For example, as shown in FIG.
36.5% at a water depth of 16.8m, ie
If the respiratory oxygen partial pressure 906 is kept at 0.9 bar, it is displayed that the user will not suffer from oxygen sickness even after diving for another 42 minutes (a possible diving time 302). Therefore, it can be said that the diver will not suffer from oxygen sickness if he observes the oxygen mixing ratio 905 of the selected respiratory air and the dive time 302 calculated based on the diving history in the current dive.
Thus, the information processing apparatus 1 for divers of the present embodiment
The mixing ratio information detection transmission unit 80 transmits oxygen concentration data to the divers information processing apparatus 1 via a transmission system using radio waves when in a non-diving state, and Then, the oxygen concentration data is transmitted to the divers information processing apparatus 1 via a transmission system using ultrasonic waves. Therefore, the oxygen concentration can be continuously detected in real time in the air (when not diving) and in the water (during diving) without any special operation by the user. ) And underwater (dive), data can be easily checked, and data can no longer be received when the water rises, or malfunctions caused by receiving incorrect data are ensured, ensuring high security The information processing apparatus for divers that can perform the operation can be provided. Further, since the divers information processing apparatus 1 of the present embodiment detects the oxygen concentration in real time by the mixing ratio information detection and transmission unit 80, it can be applied to a closed scuba in which the oxygen concentration changes in real time. is there.

[6] Modification of Embodiment [6.1] First Modification In the above embodiment, a transmission system using radio waves is used during non-diving, and a transmission system using ultrasonic waves is used during diving. Although the continuity of data transmission and reception has been ensured, the switching between diving and non-diving is not always clear, and it is assumed that data transmission and reception may be temporarily difficult at the time of switching. Therefore, in such a case, by performing various calculations and the like by using the data already received before the transmission system is switched, the influence of the interruption of data transmission and reception can be reduced as much as possible. .

[6.2] Second Modification In the above embodiment, the transmission system using radio waves is used during non-diving, and the transmission system using ultrasonic waves is used during diving to ensure continuity of data transmission and reception. However, switching between diving and non-diving is not always clear, and it may be assumed that data transmission and reception temporarily becomes difficult at the time of diving. Therefore, in such a case, it is possible to use both transmission systems at the same time and perform data check to use error-free data. Also in this case, similarly to the first modification, the influence of the interruption of data transmission / reception can be reduced as much as possible.

[6.3] Third Modification In the above-described embodiment, a transmission system using radio waves is used for data transmission and reception during non-diving, but a transmission system using light such as infrared rays instead of radio waves. It is also possible to use

[6.4] Fourth Modification In the above-described embodiment, when the respiratory oxygen partial pressure at the current water depth position exceeds the allowable oxygen partial pressure value, the fact is notified. For the purpose of enhancing the safety, the current respiratory oxygen partial pressure is a warning value obtained by multiplying the allowable oxygen partial pressure by a safety factor, for example, 0.9 to the allowable oxygen partial pressure.
The oxygen partial pressure determining unit 96 is configured to determine whether or not the value exceeds the value obtained by multiplying the respiratory gas oxygen partial pressure at the current water depth position exceeds the warning value in the determination result of the oxygen partial pressure determining unit 96. If so, the sound emitting device 37 or the vibration generating device 38 may be configured to issue a warning to that effect.

[6.5] Fifth Modification In the above-described embodiment, the configuration is such that the oxygen concentration data is automatically captured. However, the configuration can be such that the user captures the oxygen concentration data at an arbitrary timing. . Further, it is also possible to configure so that the user can set the timing of capturing oxygen concentration data.

[0070]

As described above, in the information processing apparatus for divers according to the present invention, the oxygen concentration can be continuously measured in real time without any special operation by the user during both non-diving and diving. Since data can be sent and received and detected, data can be easily confirmed during non-diving and diving, and data cannot be received when the water rises, or incorrect data is received. Therefore, it is possible to provide a divers information processing apparatus that can eliminate malfunction due to the above and secure high security.

[Brief description of the drawings]

FIG. 1A is a plan view showing a part of an apparatus main body and an arm band of a divers information processing apparatus to which the present invention is applied, and FIG. 1B is a side view thereof.

FIG. 2 is a schematic configuration block diagram of the entire divers information processing apparatus.

FIG. 3 is a schematic configuration block diagram of a mixing ratio information detection transmission unit.

FIG. 4 is a functional configuration block diagram of the information processing apparatus for divers according to the embodiment;

FIG. 5 is an explanatory diagram of an operation mode transition state of the divers information processing apparatus.

FIG. 6 is an explanatory diagram of a display screen in a time mode and a surface mode.

FIG. 7 is an explanatory diagram of a display screen in a planning mode.

FIG. 8 is an explanatory diagram of a display screen in a setting mode.

FIG. 9 is an explanatory diagram of a display screen in a diving mode.

FIG. 10 is an explanatory diagram of a display screen in a log mode.

FIG. 11 is an explanatory diagram of a half-saturation time.

FIG. 12 is a flowchart of an operation process of a mixing ratio information detection transmission unit.

FIG. 13 is a flowchart of an operation process of the diver's information processing apparatus 1 main body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Divers information processing apparatus 5 ... Operation part 10 ... Display part (display means) 11 ... Liquid crystal display panel 34 ... Pressure sensor 37 ... Sound emitting device 38 ... Vibration generator 50 ... Control part 51: CPU 53: ROM 54: RAM 60: Nitrogen amount calculating unit 61: Water depth measuring unit (water pressure measuring unit) 62: Respiratory nitrogen partial pressure calculating unit 63: Respiratory nitrogen partial pressure storage Unit 64: Nitrogen partial pressure calculation unit 65: Nitrogen partial pressure storage unit 67: Half-saturation time selection unit 68: Clock unit 71: Receiving unit (for ultrasonic) 72: Amplifier circuit (Ultrasonic) 73) Filter circuit (for ultrasonic waves) 74 ... Receiver (for radio waves) 75 ... Amplifying circuit (for radio waves) 76 ... Filter circuit (for radio waves) 80 ... Mixing ratio information detection / transmission unit 81 ... CPU 82 ... ROM 83 ... RA 84 operation monitoring switch 85 oxygen sensor 86 amplifying circuit 87 A / D conversion circuit 91 internal nitrogen discharge time calculating unit 92 diving possible time calculating unit 93 allowable water depth value calculating unit 95 …… Oxygen partial pressure calculation section 96 …… Oxygen partial pressure determination section 700 …… Switching section 701 …… Ultrasonic signal generation section 702 …… Ultrasonic transmission section 703 …… Piezoelectric element 705 …… Radio signal generation section 706 …… Radio wave transmitting unit 107 Antenna A, B Switch ST1 Time mode ST2 Surface mode ST3 Planning mode ST4 Setting mode ST5 Diving mode ST6 Log mode

Claims (13)

[Claims] 1. A parameter detection and transmission device for detecting a parameter corresponding to a breathing gas used for diving and transmitting the parameter to an external diving condition management device, wherein the parameter detection and transmission device transmits the parameter via a first transmission system. A first transmission unit for transmitting the parameter, a second transmission unit for transmitting the parameter via a second transmission system different from the first transmission system, and an operation of detecting an operation environment of the parameter detection transmission device Environment detecting means, when the detected operating environment is a predetermined first operating environment, the transmission of the parameter is performed using the first transmitting means, and the detected operating environment is a predetermined first operating environment. And a transmission control means for transmitting the parameter using the second transmission means when the operating environment is the second operation environment. 2. The parameter detection transmission device according to claim 1, wherein the first operation environment is underwater, and the second operation environment is in the air. 3. The parameter detecting and transmitting device according to claim 2, wherein the first transmission system is an ultrasonic transmission system, and the second transmission system is a radio wave transmission system. Transmission device. 4. The parameter detecting and transmitting apparatus according to claim 2, wherein the first transmission system is an ultrasonic transmission system, and the second transmission system is an optical transmission system. Transmission device. 5. A diving condition management device that receives a parameter corresponding to a respiratory gas used for diving and manages a diver's diving condition based on the received parameter. First receiving means for receiving the parameter; second receiving means for receiving the parameter via a second transmission system different from the first transmission system; and reception for detecting an operating environment of the diving condition management device. Operating environment detecting means, when the detected operating environment is a predetermined first operating environment, the first operating means is used to receive the parameter, and the detected operating environment is determined in advance. A dive state management device comprising: a reception control unit configured to perform reception of the parameter using the second reception unit when the environment is the second operation environment. 6. The diving condition management device according to claim 5, wherein the first operating environment is underwater, and the second operating environment is in air. 7. The diving condition according to claim 6, wherein the first transmission system is an ultrasonic transmission system, and the second transmission system is a radio wave transmission system. Management device. 8. The diving condition according to claim 6, wherein said first transmission system is an ultrasonic transmission system, and said second transmission system is an optical transmission system. Management device. 9. The diving condition management device according to claim 5, wherein: the receiving condition determining device determines whether the first receiving device or the second receiving device has received the parameter normally. Diving management information generating means for generating diving management information based on the obtained parameters, wherein the diving management information generating means is configured to output the first receiving means or the second
If any one of the receiving means becomes a state in which the parameter cannot be received from a state in which the parameter was received, the diving management information is generated based on the parameter already received. Diving condition management device. 10. The diving condition management device according to claim 5, wherein the reception control means is configured to switch the operating environment from one of the first operating environment and the second operating environment to the other. Is a parameter detection / transmission device which causes both the first receiving means and the second receiving means to perform a receiving operation for a predetermined period of time. 11. A control method of a parameter detection and transmission device for detecting a parameter corresponding to a respiratory gas used for diving and transmitting the parameter to an external diving condition management device. An operating environment detecting step of detecting an operating environment; and, if the detected operating environment is a predetermined first operating environment, transmitting the parameter via a first transmission system. A transmission step of transmitting the parameter via a second transmission system different from the first transmission system when the environment is a predetermined second operation environment. A method for controlling a parameter detection transmitting device to perform. 12. A control method for a diving condition management device that receives a parameter corresponding to a breathing gas used for diving and manages a diver's diving condition based on the received parameter. A receiving operating environment detecting step of detecting an operating environment; and, if the detected operating environment is a predetermined first operating environment, receiving the parameter via a first transmission system. A receiving step of receiving the parameter via a second transmission system different from the first transmission system when the environment is a predetermined second operating environment. A control method for the diving condition management device. 13. The method according to claim 1, wherein:
An information processing device for divers, comprising: the parameter detection / transmission device according to claim 13; and the diving status management device according to any one of claims 5 to 10.