JPH0681094U - Electronics for diving work - Google Patents

Abstract

(57) [Summary] [Purpose] Different alarm sounds are emitted for multiple alarm factors so that the type of alarm factors can be clearly determined only by hearing without visually appealing. In an electronic device for diving work carried by a diving operator, a frequency dividing circuit 205 for dividing a frequency, an alarm reporting means 208, and a frequency dividing circuit 205 are controlled to be different for each type of alarm factor. The control circuit 203 for controlling the alarm to be issued by the alarm reporting means 208, and the control circuit 20.
3 and a frequency divider circuit 205 and an oscillator circuit 204 for generating a clock signal.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electronic device for diving work carried by a diving operator, and more particularly to an electronic device for diving work capable of warning by distinguishing the degree of danger of a warning factor.

[0002]

[Prior art]

 Conventionally, in this type of device, when issuing an alarm when an abnormality occurs, two types of alarm means, visual and audible, have been used.

As means for visually appealing, the type of alarm factor can be confirmed by blinking the display data on the display unit according to the degree of danger of the alarm factor. However, the only means of audibly appealing was to make a single alarm sound.

[0004]

[Problems to be solved by the device]

 As described above, in the above-mentioned conventional apparatus, since the means for appealing by hearing is a single alarm sound, even if the operator hears the alarm sound, it is necessary to know what kind of alarm factor the alarm sound means. Therefore, it was necessary to confirm the type of alarm factor by observing the display.

Further, if the worker becomes accustomed to the alarm itself due to the low-risk alarm, there is a problem that it becomes difficult to notice the alarm notification when a factor having a high risk occurs.

The present invention has been made in view of the above problems, and an object thereof is to provide an electronic device for diving work in which the type of an alarm factor can be determined only by hearing.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention controls a frequency dividing circuit for dividing a frequency, an alarm reporting means, and a frequency dividing circuit in an electronic device for diving carried by a diving operator to issue an alarm. The configuration is characterized by including a control circuit for controlling the alarm reporting means to issue different alarms for each type of factor, and an oscillation circuit for generating a clock signal to the control circuit and the frequency dividing circuit.

[0008]

[Action]

 Based on the situation such as the degree of danger of the alarm factor, whether the alarm factor is single or multiple, the alarm sound is modulated by a certain rule.

As a result, the diving operator can identify the change in the alarm factor only by hearing without the aid of vision.

[0010]

【Example】

 Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

As an electronic device for diving work carried by a diving worker, an electronic residual pressure gauge for measuring and monitoring the air pressure in the cylinder, an electronic depth gauge for measuring and monitoring the diving work depth, and a working environment for the diving worker An information management device for diving work to be monitored and a device that combines these functions are known.

FIG. 1 shows the structure of an electronic residual pressure gauge for a diving cylinder according to an embodiment of the present invention, in which a space between a cylinder coupling portion 1 having a built-in pressure sensor and a pressure display portion 2 having an LCD display portion is shown. It is connected by a spiral electric cable 3.

FIG. 2 shows a block circuit configuration of the pressure display unit 2. In FIG. 2, when air pressure is applied to the pressure sensor 101 provided inside the cylinder connecting portion 1 connected to the air cylinder, a voltage corresponding to the pressure is generated, and its electric signal is transmitted through the electric cable 3 to generate pressure. It is transmitted to the pressure sensor interface circuit 201 of the display unit 2. The signal output from the pressure sensor interface circuit 201 is digitally converted by the A / D converter 202 and input to the control circuit 203.

In the control circuit 203, by inputting the clock signal from the oscillation circuit 204, the digitally converted air cylinder internal pressure value is output to the LCD display unit 206 at regular time intervals, and the air cylinder internal pressure value is output. Is displayed digitally.

In the electronic residual pressure gauge of the diving cylinder configured as described above, there are three types of alarms. One is a battery warning that takes in the voltage of the built-in self-battery into the A / D converter 202, and when the voltage drop is detected, the battery replacement time is warned.

Secondly, when the pressure value in the air cylinder sent from the A / D converter 202 falls below the warning set value set in the control circuit 203, the residual air amount in the cylinder decreases. This is a cautionary note that the air residual pressure inside the cylinder is reduced to confirm that this has been done.

Thirdly, when the measured air pressure value in the cylinder falls below the alarm set value set in the control circuit 203, the inside of the cylinder is notified to confirm that the remaining air amount in the cylinder is small. It is an alarm for residual air pressure reduction.

When the control circuit 203 detects the voltage drop of the battery, the control circuit 203 outputs the information to the LCD display unit 206, and the LCD display unit 206 displays “measured pressure value” as a battery warning. The letters "BATT" are displayed alternately.

At the same time, the control circuit 203 controls the alarm LED 207 and the frequency divider circuit 205 to turn on the alarm LED 207 at the timing shown in FIG. 3 and to alert the output modulated by the frequency divider circuit 205. The ceramic buzzer 208 is applied to generate an alarm sound. The lighting of the LED and the timing of the alarm sound generation are controlled by the clock signal of the oscillation circuit 204.

When the control circuit 203 detects that the pressure value in the air cylinder is lower than the warning set value, it controls the LCD display unit 206 to measure the pressure measurement displayed as a caution for decreasing the residual air pressure in the cylinder. While displaying the value in a blinking manner, the alarm LED 207 and the frequency dividing circuit 205 are controlled in the same manner as when the battery warning is issued, and the alarm is output at the timing shown in FIG. The same control is performed for the alarm for reducing the residual air pressure in the cylinder, and the alarm with the timing shown in the waveform diagram of FIG. 3 is output.

While the control circuit 203 is detecting an alarm factor, the basic cycle shown in the waveform diagram of FIG. 3 is repeated, and when a plurality of alarm factors are detected, the alarm ceramic buzzer 208 combines them to detect the alarm factor. A warning sound is generated and the warning LED 207 is turned on.

In this way, by changing the modulation of the alarm sound according to the alarm factor, even when the operator switches from the warning message for decreasing the residual air pressure in the cylinder to the alarm for decreasing the residual air pressure in the cylinder, these warnings are also issued. Even when the battery warning is added to the information and the alarm, it is possible to clearly confirm each alarm factor by the auditory sense.

The alarm ceramic buzzer 208 can be attached to the wrist and provided on the back surface of the pressure display unit 2 to be used to stimulate the skin of the operator.

In the present embodiment, the pulse width modulation method in which the frequency divider circuit 205 operates in ON-0FF is taken as an example, but the frequency modulation is performed by changing the division ratio of the frequency divider circuit 205 under the control of the control circuit 203. The system may be used, or a combination of pulse width modulation and frequency modulation may be used.

[0025]

As can be understood from the above description, in the electronic device for diving work of the present invention, by modulating the alarm sound, it is possible to reduce the level of danger of the alarm factor, the single alarm factor and the multiple alarm factors. This has the effect that the alarm can be easily identified, the type of the alarm factor can be determined only by hearing, and the safety of the worker can be further improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a block circuit diagram showing details of the embodiment of FIG.

FIG. 3 is a waveform diagram showing an output timing of an alarm sound in the example.

[Explanation of symbols]

 203 Control circuit 204 Oscillation circuit 205 Frequency divider circuit 208 Ceramic buzzer for alarm

Claims (1)

[Scope of utility model registration request] 1. An electronic device for diving carried by a diving operator, wherein a frequency dividing circuit for dividing a frequency, an alarm reporting unit, and the frequency dividing circuit are controlled to be different for each type of alarm factor. An electronic device for diving work, comprising: a control circuit for controlling an alarm to be issued by the alarm reporting means; and an oscillating circuit for generating a clock signal for the control circuit and the frequency dividing circuit. .