JPH0578796B2 - - Google Patents

Description

[Detailed description of the invention]

[Technical Field] The present invention relates to a solar time switch in which fixed time data such as sunset, sunset, sunrise, and dawn are set throughout the year, and a lighting load is made to blink based on this fixed time data. . [Background technology] In general, this type of solar time switch controls the lighting load based on the times of sunset, dusk, sunrise, and dawn, which change depending on the season. In order to save energy, lights are turned on only when it is dark, but if the blinking time of the lighting load is fixed, the blinking state of the lighting load may become inappropriate. That is, even if there is no need to turn on the lighting load in the evening or in the morning, the lighting load is turned on at a certain time, which is a problem that goes against energy conservation. [Effects of the Invention] The present invention has been made in view of the above points, and its purpose is to blink the lighting load at a predetermined time set in advance, or to turn on and off the lighting load at an arbitrary time set by the user. To provide a solar time switch which can appropriately switch whether or not to blink a load and can always achieve appropriate energy saving depending on the situation. [Disclosure of the Invention] (Configuration) Fig. 1 is a diagram showing the configuration of the present invention, in which 1 is a fixed time setting section for setting fixed time data such as sunset, sunset, sunrise, and dawn throughout the year, and 2 is a current time setting section. 3 is an annual timekeeping unit that measures time including the month and day; 3 is a blinking control unit that causes the lighting load 4 to blink when the current time data in the annual timekeeping unit 2 matches the data read from the fixed time setting unit 1; 5; 6 is an arbitrary time setting section that arbitrarily sets the blinking time data of the lighting load 4, and 6 is a section that switches which of the data read from the above-mentioned time setting sections 1 and 5 is used to control the blinking of the lighting load 4. The mode switching unit 6 is a mode switching unit that determines whether the lighting load 4 is blinked at a predetermined time preset in the fixed time setting unit 1 or at an arbitrary time set by the user in the arbitrary time setting unit.
It has the effect of always achieving appropriate energy saving depending on the situation.For example, the lighting load 4 can be switched on and off based on the data set in the fixed time setting section 1. By controlling the lighting load 4 in a solar mode that blinks in accordance with the brightness of the surroundings, and by controlling the lighting and turning off based on the data set in the arbitrary time setting section 5, it is possible to control the lighting load 4 in the most appropriate manner according to the situation. By appropriately switching between the user timer mode and the user timer mode in which the lighting load 4 blinks at certain times, it is possible to achieve appropriate energy savings. In the embodiment described below, data of dusk time and dawn time are set in the fixed time setting section 1. Here, the sunrise time is the moment when the tip of the sun S emerges from the horizon H, as shown in Figure 2a, and the sunset time is the moment when the tip of the sun S leaves the horizon H, as shown in Figure 1b. This refers to the moment when the sun sets below the horizon H, and the illuminance at this time is approximately
At 600 lux, it's quite bright. In other words, the sun S is below the horizon H even before sunrise and after sunset.
This light is scattered by the Earth's upper atmosphere and remains bright for a while, and this is called twilight. In this way, even before sunrise and after sunset, there is twilight for a while, so it is not a good idea from the point of view of energy conservation to turn on the lighting load 4 even during this twilight period. However, the duration of this twilight is not necessarily constant and varies depending on the season. Figure 3a shows the time of sunset T ₁ and the time of sunset in Tokyo.
This is a graph showing the relationship between T ₂ and Figure 3b.
are the time of dawn T ₃ and the time of sunrise T ₄ at the same location.
It is a graph showing the relationship between However, in Figures 3a and 3b, the time of sunset is the time when twilight disappears after sunset, and the time of dawn is the time when twilight appears before sunrise. As is clear from Figure 2 a and b, after a certain period of time from sunset, the lighting load 4
However, simply turning on the lighting load 4 or turning off the lighting load 4 a certain amount of time before sunrise time has the problem that the timing of turning on and turning off the lighting load 4 may be too early or too late depending on the season. In the embodiment, the fixed time setting unit 1 stores the sunset time when the twilight disappears after sunset and the dawn time when the twilight appears before sunrise throughout the year, and sets the time when the surroundings actually become dark. By lighting the lighting load 4 only during the period, more appropriate energy saving is achieved. (Embodiment) FIGS. 4 to 12 are diagrams showing the configuration and operation of an embodiment of the present invention. Here, the fixed time setting section 1 is constituted by, for example, a ROM,
By storing the sunset and dawn times for 365 days as digital data in the ROM, and accessing the ROM according to the month and day data of the annual timekeeping section 2, the dusk and dawn times of that day can be determined. can be obtained. At this time, the sunset time and dawn time are four-digit data in decimal notation, but the annual average dusk and dawn times are memorized as a reference time, and the time deviation from this standard time is calculated.
By storing it in ROM, the storage capacity can be significantly reduced. In other words, the reference times for sunset time and dawn time are K ₀ A and K ₀
B, and the time deviations from the reference times K ₀ A and K ₀ B are respectively f _A (D) and f _B (D), the time T 0N when the lighting load 4 should be turned on and the time T _0N when it should be turned off. _B is given by: T _0N = f _A (D) + K ₀ A T _0FF = f _B (D) + K ₀ B In the above equation, the time deviations f _A (D) and f _B (D) change according to the date data D. The amplitude is less than 100 minutes in both positive and negative directions. Therefore, the reference times K ₀ A and K ₀ B are set as 4-digit data.
If stored in the ROM, the dusk and dawn times of the year can be stored in two digits each for each day, which can save approximately 50% of the ROM's storage capacity. FIG. 4 is a graph showing the relationship between the time T _0FF at which the lighting load 4 should be turned off, its reference time K ₀ B, and changes in the time deviation f _B (D) according to the date data D. As shown in the figure, by memorizing the changes in the time deviation f _B (D) according to the date data D and the reference time K ₀ B, the time can be changed.
This allows T _0FF to be easily reproduced. Time deviation f _A (D) according to such date data D,
f _B (D) does not necessarily need to store all 365 days; it is necessary to thin out and store data every 10 to 30 days, and use the thinned out portion by interpolating the data. Bye. If you look at the graphs in Figure 3 a and b, you can see that the curve representing sunset time has inflection points around December and July.
Regarding the curve representing the dawn time, inflection points appear around January and June, and it can be seen that the curve tends to change almost linearly in areas other than the inflection points.
Therefore, near the inflection point, the data should be stored at a narrower thinning interval about every 10 days, and in straight sections, the thinning interval should be coarser and data should be stored about every 30 days. Bye. In this way, the storage capacity of the ROM can be saved by about 25% compared to the case where data is stored evenly every 10 days throughout the year. Figure 5 shows the time deviation f _A (D) according to date data D.
FIG. In the figure, linear interpolation is performed between the time deviation f _A (D ₁ ) on date D ₁ (January 1) and the time deviation f _A (D ₂ ) on date D ₂ (January 11). and
The time deviation f _A D at any date D between dates D ₁ and D ₂ is determined by the following equation. f _A (D) = f _A (D ₂ ) - f _A (D ₁ )/D ₂ - D ₁ (D - D ₁ )
+ _A (D ₁ ) The broken line in Figure 5 is the time deviation f _A when data read from the ROM is used without linear interpolation.
(D) shows the change, and it can be seen that by performing linear interpolation, the change becomes quite smooth. By the way, the sunset and dawn times differ depending on the region, and the 3rd time measured in Tokyo
Although the data shown in Figures a and b can be used in the Kanto region, it cannot be used as is in geographically distant regions such as Hokkaido and Kyushu. Therefore, we are considering a method of preparing ROMs for each target region of Hokkaido, Ou, Tohoku, Kanto, Chubu, Kinki, Chugoku, Shikoku, Kyushu, and Okinawa, and replacing the ROMs to prevent regional errors. However, changing product specifications depending on the shipping area is extremely inconvenient in terms of inventory management. Therefore, as shown in the following formula, the correction coefficients K ₁ A and K ₁ B according to each region are calculated as the time deviation f _A (D),
It is preferable to correct the times T _0N and T _0FF in each region by multiplying f _B (D). T _0N = f _A (D) × K ₁ A + K ₀ A T _0FF = f _B (D) × K ₁ B + K ₀ B Here, time deviation according to date data D f _A (D)
and f _B (D) has the largest number of consumers, and
We use data from the Kanto region, which is located almost in the center of all target regions. Therefore, the correction coefficients K ₁ A and K ₁ B for the Kanto region are each 1. In addition, in Hokkaido, which has a higher latitude than Kanto, the correction coefficient K ₁ A,
K ₁ B is 1 or more, and on the other hand, in Okinawa, which has a lower latitude than Kanto, the correction coefficients K ₁ A and K ₁ B are 1 or less. Figure 6 shows the time deviation f _A (D) of the sunset time in the Kanto region, and the time deviation f A1 of the sunrise time in the Hokkaido and Okinawa regions obtained by multiplying this by the correction coefficients K ₁ A and K _{1 B.} f _A2 is shown respectively.
The present inventor has already confirmed that the time deviation of dusk and dawn times in each region can be calculated fairly accurately by simply multiplying by the correction coefficients K ₁ A and K ₁ B, and the seventh An example is shown in the figure. In the figure, T ₃ indicates the change in the dawn time in Tokyo, which means that the time deviation f _B (D) of the dawn time in Tokyo is changed from the reference time K ₀ B (4:00 AM).
41 minutes). In addition, T ₃ ' is a correction coefficient for the time deviation f _B (D) of dawn time in Tokyo.
K ₁ B (=1.335) is multiplied by the standard time K ₀
B (4:41 a.m.) was added to calculate the dawn time in Sapporo. On the other hand, in Fig. 7, the black circles indicate the actual measured value of dawn time in Sapporo every 10 days, and if we compare this measured value with the value T ₃ ' calculated by the above-mentioned correction calculation, we find that it matches quite well. I know that there is. Here, the time deviation of dawn time in Tokyo used in Figure 7
The values of f _B (D) are shown in Table 1. The table shows the time deviation f _A (D) of sunset time in Tokyo.
The value of is also memorized.

【table】

〔Effect of the invention〕

The present invention is configured as described above, and the lighting load is blinked at a predetermined time preset in the fixed time setting section (for example, sunset time, dawn time), or at an arbitrary time set by the user in the arbitrary time setting section. It is possible to switch whether the lighting load is blinked or not depending on the time using the mode switching section, and by switching the operation pattern according to the situation, it has the effect that appropriate energy saving can always be achieved according to the situation. Additionally, it is equipped with a mode switching unit that switches whether the lighting load is turned on or off based on fixed time data set throughout the year or arbitrary time data set arbitrarily. Yes, lighting load is “on”,
Two types of operation modes can be set (program control at annual set time, program control at arbitrary set time) each with "off", so you can select any operation according to the situation at the site from among the four operation modes. It has the effect of being able to control the flashing of the lighting load by selecting the mode, being versatile, and easily implementing program control that fully satisfies the user's needs. The operation mode can be easily changed by operating a switch, and the operation mode can be confirmed by the position of the slide switch without any special operation.

[Brief explanation of drawings]

Figure 1 is a block diagram showing the configuration of the present invention, Figure 2 is a block diagram showing the configuration of the present invention.
Figures a and b are explanatory diagrams for explaining the sunrise and sunset times, respectively; Figure 3 a is a diagram showing the annual sunset time and sunset time in Tokyo; Figure 3 b
is a diagram showing the annual sunrise time and dawn time in the same place, Figure 4 is a diagram showing the relationship between the reference time and time deviation in the same place, Figure 5 is a diagram showing the interpolation calculation method in the same place, and Figure 6 is a diagram showing the interpolation calculation method in the same place. Figure 7 shows the accuracy of the correction calculation in the above, Figure 8 shows the yearly changes in sunrise times in various parts of Japan, and Figure 9 shows the sunrise time in Tokyo. A diagram showing the relationship between sunrise time and sunset time, FIG. 10 is a front view of an embodiment embodying the present invention, FIG. 11 is a block diagram showing the internal configuration of the same, and FIG. 12 is the operation of the same. It is an operation|movement explanatory diagram which shows a pattern. 1 is a fixed time setting section, 2 is an annual time measurement section, 3 is a blinking control section, 4 is a lighting load, 5 is an arbitrary time setting section, 6
is the mode control section.

Claims (1)

[Claims] 1. A fixed time setting section that sets fixed time data such as sunset, sunset, sunrise, and dawn throughout the year, an annual clock section that measures the current time including the month, day, and day of the week, and current time data in the annual clock section. In the solar time switch, the solar time switch has a blinking control unit that blinks the lighting load when the data matches data read from the fixed time setting unit, and an arbitrary time setting unit that arbitrarily sets blinking time data of the lighting load; Turning the lighting load on or off
1. A solar time switch comprising a mode switching section comprising a slide switch for switching control based on which of the data read from the two time setting sections.