JPH0625982B2 - Electronic tide gauge - Google Patents

Description

TECHNICAL FIELD The present invention relates to an electronic tide meter that calculates tidal phenomena such as low tide and high tide time of the ocean by an electronic circuit and displays them on a display.

[Outline of Invention]

Calendar storage means for storing a calendar such as at least date, area storage means for storing data relating to a designated area, tidal data storage means for storing tidal data necessary for calculating tidal times such as low tide time, And a calculation formula storing means for storing a calculation formula for calculating the tide according to the data relating to the calendar and the area using the tide data, a calculation means for executing and calculating the calculation formula, and a calculation result of the calculation means In an electronic tide meter having a display means for displaying, etc., among the tidal phenomenon, the type of tidal such as the magnitude of the tide difference of the day is input, means for temporarily storing it is provided, and the tidal phenomenon appears. Year,
The month and day are represented by the year stored in the calendar storage means,
By the secondary calculation means that is calculated from the tidal phenomenon of the month and day,
It is possible to display the year, month, and day when a desired tidal phenomenon appears and the tidal current of the day.

[Conventional technology]

Conventionally, in a device that seeks a tidal phenomenon of this kind, data of a desired calendar and area is input by an input means, it is temporarily stored, and the tidal phenomenon corresponding to the calendar and area data is previously stored. It was calculated using the stored tide calculation formula, tide data, or correction values such as the number of revisions, and displayed. Therefore, the user can know the tide calculation result corresponding to the input calendar,
It was not possible to easily know the year, month, and day when the desired tidal phenomenon appears.

[Problems and Objectives to be Solved by the Invention]

However, conventionally, in devices that seek this type of tidal phenomenon, the tidal corresponding to the input calendar and area is calculated using a previously stored calculation formula or tidal data, or a correction value such as the number of revisions. Since it was only displayed, in the future, the day with a large difference in tide level (tide level difference) of the low tide of one day (this is generally considered to be a day where fish can be caught well) or conversely If you want to know a small day, you can change the calendar in order to obtain the tidal calculation result, or you can guess it from the tidal calculation result on a certain set day. Therefore, in the former case, there is a problem that it takes time to find the day on which the desired tidal phenomenon appears, and in the latter case, the tidal calculation can be done only once, but after that it is a guess. It had a problem of poor accuracy.

Therefore, in order to solve such a conventional problem, the present invention finds a tidal phenomenon for a pre-stored calendar by tidal calculation by inputting a desired tidal phenomenon, and from the result, obtains a desired tidal phenomenon. The purpose is to provide an electronic tide meter that can accurately and efficiently determine the day on which a phenomenon appears.

[Means for solving problems]

Calendar storage means for storing a calendar such as at least date, area storage means for storing data relating to a designated area, tidal data storage means for storing tidal data necessary for calculating tidal times such as tidal time, And a calculation formula storing means for storing a calculation formula for calculating the tide according to the calendar and the area using the tide data, a primary calculation means for executing and calculating the calculation formula, and a calculation of the calculation means In an electronic tide meter having display means for displaying results, etc., a) Among the tidal phenomenon, the type of desired tidal phenomenon such as the magnitude of the tidal difference of the day is input, and the tidal type input control is stored temporarily. Means b) at least one of the date and time when the tidal phenomenon corresponding to the inputted tidal type appears from the tidal calculation result stored in the calendar storage means. Secondary calculation means for calculating, c) display control means for outputting tide data such as year, month, day and tide time of the day output by the secondary calculation means to the display means To do.

[Action]

Since the present invention has the above configuration, it is possible to input a desired tidal state by the tidal type input control input and temporarily store it. Next, the tide in the year, month, day, and area stored in advance in the calendar storage means and the area storage means is obtained by the primary calculation means using the tide calculation formula and the tide data, and the calculation result is obtained. Also, the year, month, and day in which the desired tidal phenomenon appears are obtained by the secondary calculation means from the previously stored correspondence relationship with the desired tidal phenomenon, and the result (year, month, day, and tidal time, etc.) Is displayed on the display means by the display control means.

〔Example〕

Hereinafter, the present invention will be described in detail based on examples.

FIG. 1 is a circuit block diagram of the electronic tide meter of the present invention. An input circuit 10 is composed of a keyboard, a switch, etc., and inputs a control signal such as a start of calculation in addition to data related to a calendar, a region, and the like. Reference numeral 20 denotes an input control circuit, which determines the data and the control signal from the input circuit 10 and outputs a signal to the temporary storage means or the calculation means, respectively. Reference numeral 41 is a time counting circuit that counts hours, minutes, seconds, year, month, and day based on the calendar value input from the input circuit 10.

As shown in the "Display status diagram of the electronic tide meter in the normal state" in Fig. 2, in the normal state, it functions as a year, month, day, hour, minute, second clock. It is stored in the storage circuit 40. Further, data regarding the area is input from the input circuit 10, stored in the area temporary storage circuit 50 by the input control circuit 20, and output to the display control means 100 for display. The display body 1 made of liquid crystal or the like is decoded by the display driving circuit 101.
02 (see FIG. 22, FIG. 2).

Next, from the input circuit 10, information of "desired tide" which is a desired tidal phenomenon is inputted. As shown in FIG. 3, this is selected by switch A and switch B, and input by the set method.
It is displayed on the display body 102 like 31. The name of this desired tidal phenomenon is also stored in the tidal type temporary storage circuit 60 via the input control circuit 20. Then, when the control signal is input from the input circuit, the signal 1000 changes to the first arithmetic circuit.
Output to 30. In the first arithmetic circuit, the tide data of “ita” is calculated from the tide calculation formula stored in the calculation formula storage circuit 70 in advance and the tide data (harmonic constant) of each region stored in the data storage circuit 80. The calendar read out and stored in the calendar temporary storage circuit 40, “March 1984 2
"4 days" is read and the tide calculation is started. By tide calculation, the time of high tide (tide time) and tide level at "ita" on this day can be obtained, but information on the age of the moon such as full moon can be easily obtained from the process of these calculations or from the result. Desired. (It is a well-known fact that when the moon is a new moon or a full moon, the tide production is large (hot tide), and when the moon is a half moon, the difference is small (small tide).) Therefore, by the primary arithmetic circuit 30, The calculated tidal calculation result is temporarily stored in the tidal calculation result temporary storage circuit 90. The operation of this primary arithmetic circuit 30 is controlled by the control signal 1000 in advance.
It may be done before is input.

Alternatively, the tide calculation may be performed once a day in synchronization with the clock circuit, and the result may be stored in the temporary storage circuit 90.

Next, the control signal 1001 is output from the temporary arithmetic circuit 30 to the secondary arithmetic circuit 31. As a result, in the arithmetic circuit 31, the tidal calculation result and the desired type of tidal phenomenon are input from the temporary storage circuits 90 and 60, respectively.

Of the tide calculation results in Oita on March 24, 1984, the age-related result is 5.5. On the other hand, the cycle of the age of the moon is about 27.5 days, so it takes about 8 days until the next spring tide, that is, the age of the moon becomes 13.0 ... until the spring tide in the near future and the next spring tide. The number of days is calculated by the secondary arithmetic circuit 31. The tide time and tide level at each tide may be corrected based on the previously obtained Oita tide time and tide level on March 24. If more accuracy is required, the secondary operation circuit may be used. The year when the spring tide appears in 31
The month and day may be substituted into the tide calculation formula described above and calculated by the primary calculation circuit 30. The tide calculation result such as the year, month, day and the tide time at which the at least one spring tide appears is temporarily stored in the secondary operation result primary storage circuit 32, and the operation result of the nearest future of them is stored. Display drive circuit 1 after being output to display control circuit 100 and being decoded
01 is displayed on the display body 102. (See FIG. 4) Also, by pressing switch A (corresponding to the input circuit 10) 302, the calendar 40 of the spring tide in the near future is sequentially displayed.
1 and tide time 402 etc. are the secondary operation result temporary storage circuit
From 32, it is read to the display control circuit 100 and displayed on the display body 102 by the display drive circuit 101.

It should be noted that the embodiment described here is merely one embodiment.

〔The invention's effect〕

As described above, according to the present invention, when the desired type of tidal phenomenon is input from the input circuit, the value of the calendar clocked by the timing circuit and the tidal values stored in the tidal calculation formula memory circuit and the data memory circuit are used. From the calculation formula and data, data on the pre-entered area is extracted, the tidal phenomenon in the calendar is obtained by the primary operation circuit, and then the correction operation is performed by the secondary operation circuit to finally obtain the desired tidal effect. The year, month, and day when the phenomenon appears and the tidal phenomenon at that time can be easily obtained.

Further, as a method for obtaining the tidal phenomenon with respect to the basic calendar value, the user can automatically perform the tidal phenomenon in the switch control in synchronization with the carry of the day of the counting circuit. Since it is only necessary to enter the data on the type and area, it has the effect of being extremely easy to use.

Further, the year, month, and day when the desired tidal phenomenon appears are obtained by performing correction calculation processing from the tidal phenomenon having periodicity such as the age of the moon on the calendar indicated by the timing circuit as described above. . Therefore, the desired tide phenomenon is not limited to one year, month, and day, and it is possible to obtain any number of times since recent years.

[Brief description of drawings]

FIG. 1 is a circuit block diagram of an electronic tide meter according to the present invention.
FIG. 2 is a display state diagram of the electronic tide meter in a normal state. FIG. 3 is a display state diagram when a desired tidal phenomenon is input. FIG. 4 is a display diagram of the calculation result of the second calculation circuit. 10 in the figure ... Input circuit 20 ... Input control circuit 30 ... Primary operation circuit 31 ... Secondary operation circuit 32 ... Secondary operation result primary memory circuit 40 ... Calendar temporary memory circuit 50 ... Regional temporary memory circuit 60 …… Tide type temporary memory circuit 70 …… Calculation formula memory circuit 80 …… Tide data memory circuit 90 …… Tide calculation result temporary memory circuit 100 …… Display control circuit 101 …… Display drive circuit 102 …… Display

Claims (1)

[Claims] 1. A calendar storage means for storing a calendar such as at least a date, an area storage means for storing data relating to a designated area, and tidal data necessary for calculating tidal tide such as tidal time. Tide data storage means, calculation formula storage means for storing the calculation formula for calculating the tide according to data relating to the calendar and area using the tide data, and primary calculation means for executing and calculating the calculation formula , And an electronic tide meter having a display means for displaying the calculation result of the calculation means, etc., a) Among the tidal phenomenon, input the desired type of tidal phenomenon such as the magnitude of the tidal difference of the day, and temporarily input it. The tide type input control means to be stored in b), the date when the tide phenomenon corresponding to the input tide type appears, the date stored in the calendar storage means. Secondary calculation means for at least one calculated from Shiodome phenomenon. c) An electronic tide meter characterized by having display control means for outputting tide data such as year, month, day and tide time of the day output by the secondary operation means to the display means.