JPH0746146B2 - Electronic tide gauge - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electronic tide meter that calculates tides such as sea tides by an electronic circuit and displays the values on a digital display device such as a liquid crystal panel.

[Conventional technology]

Conventionally, as in Japanese Patent Laid-Open No. 51-15472, there has been a method of arranging a rotary bezel with scales or place names printed on the outer periphery of an analog timepiece and rotating the bezel to simply display the ebb and flow time. However, the ebb and flow times do not always occur in a fixed time cycle, but occur in completely different cycles depending on the day and the season. Needless to say, the tidal time changes if the region changes, and the difference in tidal time is not always constant. Also, the number of times of ebb and flow will vary depending on the day and area. From the above, the mechanical method as described above was inaccurate and completely inconsistent with reality.

〔Purpose〕

The present invention solves the above drawbacks. The purpose is to accurately display the tides such as the ebb and flow time according to the calendar and the area digitally, and more than two types of tides can be stored, one of which is automatically counted by the clock function. It is tied according to the calendar to be uploaded and the other tides are tied according to the future and past calendars specified by the user and the region.
It is to provide a device capable of independently displaying more than one type of tide.

〔Overview〕

The electronic tide meter of the present invention is an external operation member that specifies at least a date and an area, a calendar storage unit that stores the current date, an area storage unit that stores the area, and a tide data storage unit. A formula storage means for storing a formula for calculating the tidal time based on the date and area and the tidal data stored in the tidal data storage means, and a tidal time corresponding to the date and the region by executing the formula. Comprising a calculating means for calculating, a display means for displaying the tide time as a result of the calculating means, and a time measuring means, and the current date stored in the calendar storage means is stored in the time measuring means. When the date is updated in association with the count-up of the current date stored in the calendar storage unit, the calculation unit automatically counts up at fixed time intervals. First arithmetic processing for automatically calculating the current date and the first tidal time corresponding to the designated area stored in the area storage means, and the date and area by the external operating member. Is specified, the second calculation processing for calculating a second tidal time corresponding to the specified date and area is performed, and the display means is configured to perform the first tidal time and the second tidal time. It is characterized by having a selection means for selectively displaying the time.

〔Example〕

Hereinafter, the electronic tide meter of the present invention will be described in detail based on examples. 1, 2 and 3 are plan views of an electronic tide meter according to the present invention which uses a liquid crystal panel as a display means. Figure 1 is the clock mode, 1a is today's calendar,
In this case it is October 28, 1983. 2 is a clock function, which is 12:34:56 in this case. This 1a calendar automatically counts up every day with the 2 clock function. Fig. 2 shows the current tide mode, and the calendar always matches the clock mode. 4a is a current area indicator showing the current area, which is Tokyo in this case. Actually, this indicator and the surrounding place name printing are provided in the required number of regions, and the indicator of the designated region is turned on. 5a and 5b are current high tide times according to the calendar and the current area, and 6a and 6b are current low tide times.
FIG. 3 shows the future tide mode. 1b is a futuristic calendar showing November 13, 1983. 4b is a future area indicator showing Onahama. 5c and 5d are future high tide times according to the future calendar and future area indicators, and 6c and 6d are future low tide times. 3a to 3f are operation buttons for mode switching and correction. Reference numeral 3a denotes a mode button, and each time the button is pressed, the clock mode, the current tide mode, and the future tide mode are sequentially switched. 3b switches between the correction state and the normal state each time the lock button is pressed. Therefore 2 in clock mode
Clock corrections, currently in tidal mode, such as counters and
Calendar 1a and 4a stored in storage means such as RAM
Fix for current region indicator, 1b in future tide mode
You can modify the future calendar of and the future area indicator of 4b. In the current tide mode and future tide mode, the correction will be completed and the lock button on 3b will be pressed to return to the normal state. It has become. The calculation of the tidal time is, for example, as shown in Japanese Patent Laid-Open No. 58-146819, tidal data including data such as latitude and longitude corresponding to a calculation formula and an area is stored in a storage unit such as a ROM or a RAM. It is stored and the calculation is executed based on the stored data, the date, and the designated area.
3c is an hour / year correction button, and each time it is pressed, the time is incremented by 1 in the correction state of the clock mode, and the year is incremented by 1 in the correction states of the current tidal mode and future tidal mode. 3d is a minute / month correction button for correcting the minute and month in each, and 3e is a second / day correction button for resetting the second and correcting the day. 3f is a region correction button. When the current tide mode and future tide mode are corrected, the region is rotated clockwise by 1 each time it is pressed, and it is stored in, for example, a counter or RAM according to the current region indicator and future region indicator. Modify each of the areas listed.

From the above, if you set 4a in your own area, today's calendar will automatically be counted up every day by the time function, so you can easily know the tidal time in your area every day with the current tidal mode. Yes, and one day in the future, the tidal time in a certain area can also be confirmed by the future tide mode.

As described above, in this embodiment, two kinds of ebb and flow times that change depending on the calendar and the area can be easily confirmed.

A block diagram of the present invention is shown in FIG. In FIG.
Reference numeral 7 is an oscillating circuit for producing a clock signal as a time standard, 8 is a time measuring circuit for measuring the time and changing the calendar by using the oscillating clock of 7, and 3a, 3b, 3c, 3d, 3e, 3f are the operation buttons. Then, 9 is a circuit for switching between the correction state and the normal state by the button force of 3b, and 10, 11, 12, and 13 are 3c, 3d, and 3 respectively.
By pressing the e or 3f button, the hour / year of today's calendar /
Correction circuit for correcting and changing the future calendar year, minute / today's calendar month / future calendar month, second / today's calendar day / future calendar day, current area indicator / future area indicator, Reference numeral 14 denotes an arithmetic circuit, which executes an arithmetic operation in accordance with the contents output from the correction circuits 10, 11, 12, and 13 and outputs today's tide time and future tide time to 15 display selection circuits. In 15, the time, today's tidal time, or future tidal time is selected according to the button input of 3a and output to the display circuit of 16. Then, the contents of the selected display circuit 16 are displayed on 17 display devices.

In the figure, today's calendar is year ₁ , month ₁ , day ₁ and future calendar is year ₂ , month ₂ , day ₂ and current area indicator is area
1, Future area indicator is shown in area 2. Today's calendar year ₁ , month ₁ , day ₁ is linked with the time measuring circuit 8 and is automatically counted up every day. Then, the ebb and flow time is calculated by the arithmetic circuit 14 according to the contents of the counted up calendar, and is output to the display selection circuit 15,
It is selected and displayed by pressing the button.

With the above configuration, it is possible to independently display the tides of two or more dates or regions,
Moreover, the daily ebb and flow times are automatically calculated, so it is easy to know.

〔effect〕

As described above, according to the present invention, the calculation means executes the calculation formula, and automatically every time the date is updated with the count-up of the current date stored in the calendar storage means. The first calculation process for calculating the first tidal time corresponding to the current date and the designated area, and the designated date and time when the date and the area are designated by the external operation member and One of the tidal results is obtained by performing the second computing process of computing the second tidal time corresponding to the region, and the display means selectively displaying the first tidal time and the second tidal time. With the update of the calendar, that is, it is automatically calculated and updated every 24 hours, and the user can easily know the tidal time of the specified area without requiring any complicated operation for daily tidal changes. is there. Considering that this requires a huge amount of time for calculation, the calculation is performed at a time when the user does not normally use it, that is, at midnight when the date is updated, so that it can be used regularly without any trouble in use. The tidal time can be updated.

Further, even if the user obtains the tide of any area or date, when the desired area or date is specified by the external operation member, the operation means performs the operation to obtain the tide time, and the display means displays the first tide time. And the second tide time, two or more different tide times are selected and displayed, so the tide time that you always need and the tide time of the area you want to know are updated automatically. It is possible to obtain an electronic tide meter that is very convenient in actual use because it can be stored and displayed independently of the tide time, which is useful data when planning such as.

[Brief description of drawings]

1, 2, and 3 are plan views of an electronic tide meter according to the present invention. FIG. 1 is a clock mode, FIG. 2 is a current tide mode, and FIG. 3 is a future tide mode. FIG. 4 is a block diagram. 1a …… Today's calendar 1b …… Future calendar 2 …… Clock function 3a …… Mode button, 3b …… Lock button 3c …… Hour / year correction button 3d …… Minute / month correction button 3e …… Second / day correction Button 3f …… Region correction button 4a …… Current area indicator 4b …… Future area indicator 5a, 5b …… Current high tide time 5c, 5d …… Future high tide time 6a, 6b …… Current low tide time 6c, 6d …… Future high tide Time 7 …… Oscillation circuit, 8 …… Time measurement circuit 9 …… Switching circuit, 10 …… Hour / year ₁ / year ₂ / correction circuit 11 …… Minute / month ₁ / month ₂ correction circuit 12 …… Second / day ₁ / day ₂ correction circuit 13 …… Area ₁ / Area ₂ correction circuit 14 …… Computation circuit, 15 …… Display selection circuit 16 …… Display circuit, 17 …… Display device

Continuation of front page (56) References JP-A-56-2058 (JP, A) JP-A-57-208486 (JP, A) Actually-opened Sho-58-11088 (JP, U)

Claims (1)

[Claims] 1. An external operation member for designating at least a date and a region, a calendar storage means for storing a current date, a region storage means for storing a region, a tide data storage means, and a date. And a formula storing means for storing a formula for calculating the tidal time based on the region and the tidal data stored in the tidal data storing device, and executing the formula to calculate the tidal time corresponding to the date and the region. Comprising a calculation means, a display means for displaying the tide time which is the result of the calculation means, and a timekeeping means, and the current date stored in the calendar storage means is fixed in conjunction with the timekeeping means. It is automatically counted up every time, and the calculation means executes the calculation formula and automatically every time the date is updated with the count-up of the current date stored in the calendar storage means. First arithmetic processing for calculating the current date and the first tidal time corresponding to the designated area stored in the area storage means, and the date and area are designated by the external operating member. And a second calculation process for calculating a second tide time corresponding to the designated date and area, the display means is configured to perform the first tide time and the second tide time. An electronic tide meter having selection means for selectively displaying.