JPS6388792U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a block diagram showing the internal circuit configuration of an electronic depth gauge according to an embodiment of the present invention, Figure 2 is an external view of the electronic depth gauge of the same embodiment, and Figure 3 is a display of the display section. Figure 4 is a detailed block diagram of the rising speed detection circuit in Figure 1, Figure 5 is a detailed block diagram of the maximum value storage control circuit in Figure 1, and Figure 6 is the depressurization circuit in Figure 1. 7 is a detailed block diagram of the switch control circuit of FIG. 1, FIG. 8 is a diagram showing a no-decompression limit data table, FIG. 9a is a diagram showing a decompression table, and FIG. Figure 9b shows a part of the decompression table in figure a in detail, Figure 10 shows a group symbol conversion table, Figure 11 shows a table of repeated dive times, and Figure 12 shows examples of diving. FIG. 13 is a diagram showing various display states on the display unit, and FIG. 14 is a flowchart showing the processing operation of the no-decompression notification of this embodiment. 3... Display unit, 5... Oscillator, 6... Frequency dividing circuit, 11
...Display switching circuit, 12...Switch control circuit, 13
...sensor, 19...1m or more detection circuit, 20...rising speed detection circuit, 21...maximum value storage control circuit, 22
...Decompression data display control circuit, 34...Dive time timer, 37...Limit data storage circuit, 38...Comparison circuit, 43...First dive decompression data reading circuit, 44
...Decompression data storage unit, 55...Rest time counting circuit,
58...12 hour detection circuit, 61...Repetitive diving decompression data reading circuit.

Claims (1)

[Scope of Claim for Utility Model Registration] Water depth detection means for detecting water depth, diving time measuring means for measuring diving time, and no-decompression limit data storage means for storing infinite pressure water depth and its limit diving time in correspondence. and comparing the water depth detected by the water depth detection means and the diving time measured by the diving time measuring means with the no-decompression limit data stored in the no-decompression limit data storage means, and determining the no-decompression limit. What is claimed is: 1. An electronic depth gauge comprising: a detection means for detecting whether a limit point has been reached; and a notification means for notifying when the detection means detects that the limit point has been reached.