JP2002320701A - Computer for diving - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that the contents of warning is unclear for informing a diver of the excess over maximum water depth and the like in scuba diving with warning sound. SOLUTION: A diving state control part 3 determines the excess of maximum water depth, the excess of diving time, and the like using information from a water depth information generating part 1 and a time information generating part 2, and the data of a calculating data storage part 4. An alarm generation command part 11 generates voice message information corresponding to the detected contents. A voice synthesizing part 12 synthesizes voice corresponding to the voice message information. The diver is warned with the synthesized voice. The warning includes the synthesized voice warning of the shortage of residual pressure in a tank by taking in the residual pressure information of air in the tank, and the abnormality of a respiration rate of the diver.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a dive computer for backing up a safe dive in scuba diving.

[0002]

2. Description of the Related Art In scuba diving, breathing is ensured by inhaling air from a tank underwater, the air being adjusted to the same pressure as the water pressure corresponding to the diving depth. At that time, oxygen and carbon dioxide that are metabolized in the body do not accumulate in the body, but nitrogen that is not metabolized in the body is released from the lungs into the blood according to the rise in the partial pressure of nitrogen at that time. It is ventilated and released from the lungs as the partial pressure drops. The amount of dissolved nitrogen increases as the partial pressure and time increase, and the greater the dissolved amount, the longer it takes to release.

[0003] Nitrogen dissolved in blood dissolves in various tissues in the body as blood circulates in the body.
If this state continues, the amount of nitrogen that exceeds the amount of nitrogen dissolved at atmospheric pressure will be dissolved, and if the amount of excess nitrogen is large, the surrounding pressure will drop to atmospheric pressure and the blood and body Since the nitrogen dissolved in the tissue cannot be left as it is, it is gasified and appears as bubbles.

[0004] When these bubbles appear in blood, they cause stenosis in thin portions of blood vessels, resulting in impaired blood circulation. In addition, when it appears in joints and muscles, it causes pain, and when it appears in nerve tissue, it also causes paralysis, impaired consciousness, and difficulty breathing.

[0005] These phenomena are generally referred to as decompression sickness. To prevent this, it is necessary to control the water depth and dive time during scuba diving so that air bubbles are not generated during ascent. .

For this reason, based on a model in which the amount of dissolved and released nitrogen in the body tissue is estimated, an allowable nitrogen dissolution at atmospheric pressure is performed so that no problematic bubbles are generated even if the pressure is reduced to atmospheric pressure. Calculate the dive time not to exceed the amount, and dive within that time. In order to calculate the dive time, a waterproof small computer that calculates the dive time while responding to a change in water depth during the dive may be used during the dive. This is generally called a dive computer.

Some dive computers have a function of generating a warning sound. In addition to issuing a warning when the dive time is exceeded, the amount of dissolved nitrogen increases as the water depth and dive time increase, and the danger increases accordingly. It has a function of emitting a sound or generating a warning sound when the ascent rate is too high, since air bubbles are easily generated even when the amount of dissolved nitrogen is within the allowable limit when the ascent rate is high.

FIG. 3 shows an example of an apparatus configuration of a dive computer. The water depth information generation unit 1 obtains water depth detection information when performing scuba diving. The time information generating unit 2 acquires time information when performing scuba diving. The dive state management unit 3 monitors whether the maximum depth, the dive time, and the ascent speed are exceeded by using the water depth information and the time information and the data in the calculation data storage unit 4. The warning sound generation unit 5 generates a warning sound signal when the dive state management unit 4 detects the occurrence of the dive time excess or the like, and warns the diver with a sound by the warning sound output unit 6.

[0009]

A conventional dive computer can notify a diver by a warning sound function that the maximum water depth, dive time, ascent speed, non-decompression dive time, and the like have been exceeded. However, since it becomes a simple vibration sound and melody, there is a problem that it is difficult for a beginner to understand what the warning content is.

An object of the present invention is to provide a dive computer that allows a beginner to surely and easily understand the contents of a warning.

[0011]

According to the present invention, in order to solve the above-mentioned problems, a dive computer is provided with a speech synthesizer, and a diver can be alerted by a synthesized speech message. It is characterized by.

(1) The diving condition is managed using the water depth information, time information and calculation data during scuba diving.
At least one of ascent speed excess and no-decompression diving time excess
A dive computer that warns a diver when one of them is detected, and corresponds to the detection content when at least one of the maximum water search, dive time, ascent speed, and no-decompression diving time is detected. A voice synthesizing device is provided which obtains voice message information, performs voice synthesis corresponding to the voice message information, and warns a diver with the synthesized voice.

(2) The diving condition is managed by using the water depth information and time information during the scuba diving, the residual pressure information of the air in the tank and the data for calculation, and the maximum water depth is exceeded, the dive time is exceeded, A dive computer that alerts a diver when detecting at least one of ascent speed excess, no-decompression diving possible time excess, tank residual pressure insufficiency, respiratory volume abnormality, the maximum water search, dive time, ascent speed, When at least one of the no-decompression diving time is exceeded, or at least one of the residual pressure shortage and respiratory volume abnormality is detected, voice message information corresponding to the detected content is obtained, and voice synthesis corresponding to the voice message information is obtained. And a voice synthesizing device that warns a diver with the synthesized voice.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) In this embodiment, a diver is warned by a voice message when a maximum water search, dive time, ascent speed, and no-decompression dive time are exceeded.

FIG. 1 shows the configuration of the dive computer according to the present embodiment. 3 differs from FIG. 3 in that a voice synthesizing device capable of outputting a warning content of a voice message is provided instead of the warning sound output unit 6 having only a function of generating a warning sound.

The warning utterance instructing unit 11 includes the dive state managing unit 3
Determines that any one or more of the maximum water search, dive time, ascent speed, and no-decompression dive time are exceeded, outputs voice message information (text data) corresponding to these items. The voice synthesizer 12 performs voice synthesis corresponding to the voice message information, and issues a warning to the diver with a voice message of voice synthesis. Voice synthesis unit 12
The data stored in the voice synthesizing data storage unit 13 is used for the voice synthesis according to. The voice synthesizing data is obtained by converting a voice message recorded in advance in accordance with the reproduction method of the voice synthesizing unit.

Therefore, the voice synthesizing unit 12 receives which voice message is to be uttered as a utterance command, and synthesizes the corresponding voice message based on the voice synthesis data to utter the message. All voice messages to be uttered are converted in advance and stored as voice synthesis data.

In this embodiment, a warning message is issued for exceeding the maximum water depth, exceeding the dive time, exceeding the rising speed, and exceeding the no-decompression diving time. Table 1 shows examples of utterances.

[0019]

[Table 1]

The maximum water depth and the dive time can be freely set, and the set numerical values are uttered in a form embedded in a warning message. When the dive state management unit 3 detects that the maximum water depth has been exceeded, the dive time has been exceeded, the ascent rate has been exceeded, and the no-decompression dive time has been exceeded, the warning utterance instruction unit 11 outputs an utterance instruction to the speech synthesis unit 12, and the speech synthesis unit 12 performs speech synthesis. By outputting a corresponding warning message from the unit 12, the user is encouraged to ascend or to adjust the ascent speed, thereby avoiding decompression sickness. (Embodiment 2) In this embodiment, residual pressure information is made available, and its configuration is shown in FIG. 1 differs from FIG. 1 in that a residual pressure information generator 14 is provided.

There is also a type of dive computer that can use the residual pressure information of the air in the tank as input information.
From the residual pressure information, the amount of air taken in can be obtained, and based on the information, the parameter value at the time of calculating the amount of dissolved nitrogen can be corrected. In addition to the management described in the first embodiment, the diving state management unit 3 can determine insufficient residual pressure, abnormal respiratory volume, and the like based on residual pressure information. A warning can be generated by a message.

In the present embodiment, a warning message to be uttered is added with a residual pressure insufficient warning or a respiratory volume abnormality warning. Table 2 shows examples of utterances.

[0023]

[Table 2]

Regarding the residual pressure insufficient warning, the residual pressure at which the warning is to be issued can be freely set, and the set numerical value is issued in a form embedded in the warning message. When the diving condition management unit 3 detects insufficient residual pressure or abnormal respiratory volume, it outputs an utterance command to the speech synthesis unit 12 and
By outputting the corresponding warning message from 2, it is possible to prevent an accident such as running out of air. In addition, since a nearby person can easily grasp the situation of the person concerned, it is possible to take measures such as preparing for a shortage of air in advance.

[0025]

As described above, according to the present invention, by providing the voice synthesizing device, the diver can be warned by the synthesized voice message, so that the following effects can be obtained.

(1) By uttering a warning message by voice synthesis, specific warning contents can be immediately grasped, and the safety of scuba diving can be increased.

(2) Since the contents of the warning are immediately transmitted to a nearby person, sufficient care can be taken for the person concerned, thereby increasing the safety of scuba diving.

(3) At the time of a warning, appropriate instruction contents can be uttered as a message, so that it is possible to act more quickly in response to the warning.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a dive computer according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a dive computer according to a second embodiment of the present invention.

FIG. 3 is a configuration diagram of a conventional dive computer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Depth information generation part 2 ... Time information generation part 3 ... Diving state management part 11 ... Warning utterance instruction part 12 ... Speech synthesis part 13 ... Speech synthesis data storage part

Claims (2)

[Claims] 1. The diving condition is managed using the water depth information, time information and calculation data during scuba diving, exceeding maximum water depth, exceeding dive time, exceeding ascent speed, and dive time without decompression. A dive computer that alerts a diver when detecting at least one of an excess, wherein the detection is performed when an excess is detected in at least one of the maximum water search, dive time, ascent speed, and no-decompression diving time. A dive computer comprising: a voice synthesizing device that obtains voice message information corresponding to the content, performs voice synthesis corresponding to the voice message information, and warns a diver with the synthesized voice. 2. The diving condition is managed by using water depth information and time information during scuba diving, residual pressure information of tank air, and calculation data, and exceeds maximum water depth, excess dive time, and ascent. At least one of excessive speed, excessive no-decompression diving time, insufficient residual pressure in the tank, and abnormal respiration
A dive computer that warns a diver when one of them is detected, wherein at least one of the maximum water search, dive time, ascent speed, non-decompression dive time is exceeded, or at least one of the residual pressure insufficiency and abnormal respiratory volume is detected. And a voice synthesizer for obtaining voice message information corresponding to the detected content when one is detected, performing voice synthesis corresponding to the voice message information, and alerting a diver with the synthesized voice. Computer.