JP2010071501A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner, determining to start timer operation according to a temperature change in the past several days at the hour of rising, which is one factor in causing bad condition. <P>SOLUTION: This air conditioner includes: a temperature detecting means for detecting outside air temperature and room temperature; a storage means for storing the detected temperatures in a memory; a timer control means for periodically acquiring the temperature at a specified time in one day unit; and a computing means for computing a difference in temperature between the temperatures in the past several days and the last temperature from the storage means. At a predetermined time of desired hour set on a timer, the temperature data on the past several days acquired from the computing means is compared with a threshold which is an approximate value obtained by polynomial approximation to control starting of timer operation to predetermined setting. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a control method in a season in which the air conditioner is started to operate by setting a timer, but the temperature is warm but there is a great difference in temperature.

  Since the air conditioner has a timer function, the timer function is used, for example, to set the next morning operation start time at bedtime. At this time, it is important to create an environment of optimum temperature / humidity from the set temperature, set humidity, and outside temperature, and examples of delicate control methods are described in Patent Document 1 and Patent Document 2. .

  For example, Patent Document 1 discloses a method for ensuring that the room temperature can reach the set temperature at the operation start time set by the timer. Patent Document 2 discloses that the room temperature is set appropriately when the user forgets to set the timer and goes to bed. It describes how to keep it.

  Patent Document 3 describes a method of taking weather forecast data by a communication means and performing driving suitable for the weather predicted in advance.

JP-A-5-340591 JP 2001-141278 A JP-A-8-178389

  Humans have the ability to adapt to the outside environment, and in the case of the Japanese climate, especially in the spring and autumn, when it gets hotter and gets colder, it becomes a natural environment. is there. However, as shown in FIG. 2, the change in temperature at this time is not necessarily a change that approximates a proportional straight line, and it is not rare that the difference in minimum temperature from the previous day differs by 5 degrees or more. Such an environment where the difference in temperature is remarkably different is considered to be a factor that causes a healthy person to lose physical condition. An air conditioner that has a timer function that can set the temperature at the time of getting up to an appropriate temperature, as well as the appropriate temperature in the winter and summer seasons, is very effective. In addition, it is possible to obtain weather information and weather forecast data through communication means to make the temperature more comfortable, but in order to realize it, not only the functions that constitute the communication means but also a large system such as weather information data is required. Issues remain in terms of cost.

  On the other hand, people with lifestyle habits who prefer to spend at natural temperature and humidity as much as possible, and those who promote environmental conservation and who promote energy conservation use air conditioners that are artificially over-adjusted. They do not like to use it and often do not actively use air conditioners outside of winter and summer.

  The present invention has been made to solve the above-described problems, and stores the outside temperature at a specific time every day, and is set by a timer only when the difference in temperature between the seasons is severe based on a change in seasonal temperature. By activating the air conditioner at the time, it is necessary to perform the minimum necessary operation to remove the environment that causes the physical condition even to those who do not like to actively use the air conditioner, The purpose is to provide new equipment at low cost without requiring new equipment.

  In order to achieve the above object, the invention according to claim 1 of the present invention is provided with a timer that outputs time data at a predetermined time, and is normally an air that controls operation based on the time set by the timer setting means. The conditioner is characterized by comprising control means for controlling the operation so as to approach the predetermined set temperature only when the difference between the outside air temperature and the room temperature from the same time on the previous day is equal to or greater than the predetermined temperature difference. Further, the invention according to claim 2 is not limited to the case where the control means has a temperature difference from the same time on the previous day, but a moving average or other approximate expression of the same time temperature data of the past several days, for example, polynomial approximation, In addition, control is performed to limit activation by logarithmic approximation or linear approximation. According to a third aspect of the present invention, the effective temperature range of the means is controlled so that the timer operation is performed regardless of the temperature up to the previous day in winter or summer.

  If it is an air conditioner equipped with a control system as described above, it will start driving only when there is a significant change from the outside temperature up to the previous day at the start time set by the timer. It is possible to prevent extreme temperature changes when waking up, and to adapt to natural temperature changes without relying only on artificial air conditioning. Moreover, an energy saving effect can be expected by operating only when necessary. In addition, it is possible to remove the factor that causes the physical condition in the cold and warm season without setting the daily timer only by setting the rough season unit.

  Hereinafter, first to fourth embodiments according to the present invention will be described with reference to the graphs shown in FIGS. In the following description, description of similar processing parts is omitted.

  FIG. 2 shows the minimum temperature from March to June in a certain city in the Kanto region. The minimum temperature is concentrated in the time zone from 1 am to 6 am, and this time zone almost overlaps with the timer start operation at the time of getting up. Here, measuring the change in the outside air temperature over the past several days until the previous day is a factor that causes poor physical condition due to a difference in temperature, particularly an important factor in heating operation. FIG. 1 is a graph of an approximate value line linearly approximated to the daily temperature of the timer set temperature. As can be seen in the graph of FIG. 1, the approximate value line shows that the temperature gradually increases with the season (in this case, spring), and the day of low temperature compared to the approximate value line is temporarily compared with the temperature change up to the previous day. In addition, it can be judged that there is a tendency for the temperature to fall significantly and that the difference in temperature is severe. In such a case, it is easy to lose physical condition, and it is desirable to perform a heating operation with an air conditioner if possible. The temperature data for the past several days at the time set by the timer is stored in the memory, and the difference between the temperature and the temperature is compared by using, for example, a linear approximation of the stored continuous temperature data for the past several days as a threshold. Therefore, it is possible to limit the minimum necessary operation by determining whether or not the predetermined timer operation is executed. As a result, even if a person who does not feel the need to actively drive the air conditioner can set the daily timer reservation, the air conditioner can be activated only when it causes a physical condition.

  FIG. 3 shows a graph in the case where the timer function is made effective when it becomes negative only by the change with the same time on the previous day instead of the temperature change in the past several days in the first embodiment. In this case, there is no need for an arithmetic expression for obtaining an approximate value, and since the temperature of the previous day is stored, this is an effective method for saving memory capacity.

  FIG. 4 shows the same control as in the first embodiment, but shows a case where the approximate value is a moving average of the past three days. Similarly, FIG. 5 shows a case where the approximate value is a polynomial approximation. A method of selecting control using such a plurality of approximate values can also be used. Also, timer operation control can be performed along a temperature change closer to a bodily sensation by comprehensively determining a plurality of approximate values and calculating a difference between the temperature and the comparison result with all approximate values.

  Regardless of the difference in temperature, if the approximate value is below a predetermined temperature (10 ° C in the examples of FIGS. 1, 3, 4 and 5), control by the timer function is enabled even if the temperature is higher than the previous day. For example, it is possible to prepare for a heating operation in winter.

  When starting and controlling a timer operation based on the conventional judgment of only the outside air temperature or room temperature, if the air temperature is higher than the set temperature but lower than the air temperature for the past several days, the air conditioner will not start, or the air temperature is below the set temperature Even so, it will be a wasteful operation when the temperature is higher than the past few days. Compared to this, the air conditioner of the present invention can measure the temperature data for the past few days, and can perform the minimum necessary operation along the temperature change that is felt just by comparing with the past temperature, and energy saving Since the effect is obtained, industrial applicability is high. This is particularly effective in spring and summer when the temperature is relatively warm, but sometimes the temperature is unstable due to a significant difference in temperature.

It is a graph showing the timer execution determination by the comparison with the linear approximate value in 1st Example of this invention, and the change of temperature. It is the graph which showed the minimum temperature from March to June of a certain year of a certain city in the Kanto region used as an example in the first embodiment of the present invention. It is a graph showing the timer implementation determination by the comparison with the temperature of the day before in the 2nd Example of this invention, and the change of temperature. It is a graph showing the timer execution determination by the comparison with the moving average value in the 3rd Example of this invention, and the change of temperature. It is a graph showing the timer execution determination by the comparison with the polynomial approximate value in the 3rd Example of this invention, and the change of temperature.

Claims (3)

  Temperature detection means for detecting the outside air temperature and room temperature, storage means for storing each detected temperature in a memory, timer control means for periodically acquiring the temperature at a specific time in a day unit, and the day before the storage means Calculating means for calculating the difference between the temperature and the temperature according to the latest temperature, and only when the temperature difference from the previous day is greater than or equal to the predetermined temperature by the calculating means a predetermined time before the desired time set by the timer, A control method for an air conditioner, characterized by starting an operation for a predetermined setting.   The air in which the control means controls not only the difference in temperature from the previous day but also the moving average or other approximate expression due to the temperature change in the past several days, for example, polynomial approximation, logarithmic approximation, linear approximation to limit the activation. Harmony machine.   An air conditioner characterized in that the control means performs control that is effective only in a predetermined temperature range.

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