TWI660144B - Energy-saving control method of air conditioner - Google Patents

Abstract

An energy-saving control method for an air-conditioner includes the following steps: A) turning on the air-conditioner; B) obtaining a trend of room temperature: obtaining a plurality of current room temperatures to determine the trend of room temperature during this period; Determine whether the current room temperature is higher than the target temperature at a predetermined value; D) Trend judgment: Determine whether the current room temperature is decreasing by the trend of the room temperature. If so, leave the air conditioner to its own The built-in function operates and returns to step B), if not, proceed to the next step; and D) High output mode: instruct the air conditioner to operate in high output mode, and return to step B).

Description

Energy-saving control method of air conditioner

The invention relates to an air conditioner, in particular to an energy-saving control method for an air conditioner.

The existing air conditioner is operated by a user holding a remote control to remotely control the air conditioner to make it operate at a desired set temperature, and the existing air conditioner also operates according to the temperature set by the user. , Use its own temperature sensor to determine whether the current room temperature is different from the user's set temperature, and decide whether to operate in high or low output mode based on the difference in temperature. That is, when the indoor temperature is higher than the set temperature by 2 ° C or higher, it operates in the high output mode, when the difference is within 2 ° C, it operates in the medium output mode, and when the difference is within 1 ° C, it operates in the low output mode. In order to achieve the effect commonly known as the constant temperature air conditioner.

However, the aforementioned automatic operation mechanism of air conditioners mainly judges the operation mode based on the temperature difference. Such technology is rough in judging the temperature and operation mode, although it can operate at high output when demand is high, and When the demand is low, it operates at a low output to achieve a certain degree of energy saving effect, but it cannot provide a more detailed energy saving effect according to the current indoor temperature trend.

The main purpose of the present invention is to provide an energy-saving control method for an air-conditioner, which can determine the current indoor temperature change trend, thereby determining the operation mode of the air-conditioner, and thereby achieving more energy-saving effects.

In order to achieve the above object, the present invention provides an energy-saving control method for an air-conditioner, which includes the following steps: A) Turning on the air-conditioner: Turning on an air-conditioner to operate by a controller, wherein the controller presets a target temperature And the controller has a microcomputer, there are at least three operating modes of the air conditioner: minimum energy consumption mode, standard mode and high output mode; B) obtaining the trend of room temperature change: the microcomputer uses a temperature sensor every one The current room temperature is obtained once at a predetermined time, and a total of at least three current room temperatures are obtained. The obtained current room temperature is used to determine the trend of the room temperature during this time; C) Temperature judgment: the microcomputer determines the current room temperature Whether the temperature is higher than the target temperature by more than a predetermined value, if yes, then proceed to the next step; if not, the controller instructs the air conditioner to operate in the lowest energy consumption mode, and returns to step B); D ) Trend judgment: With the change trend of room temperature, the microcomputer judges whether the current room temperature is showing a decreasing trend, that is, whether the plural current room temperature is lower than the later temperature. The lower the degree, if it is, the controller instructs the air conditioner to use the target temperature as the set temperature for its operation, and instructs the air conditioner to operate in the standard mode, and returns to step B), if not, proceed to the next One step; and E) high output mode: the controller commands the air conditioner to operate in high output mode, and returns to step B).

It can be known from the above steps that the present invention determines the operation mode of the air conditioner by using the current indoor temperature change trend, thereby achieving a more energy-saving effect.

Another object of the present invention is to provide an energy-saving control method for an air conditioner, which can determine the operation mode of the air conditioner by a remote controller, and further the remote air conditioner operates according to the operation mode determined by the remote control.

The main method is to replace the controller in the foregoing method with a remote controller of an air conditioner, which uses an infrared signal to remotely control the air conditioner.

Such technology can use a remote control to judge the operation mode of the air conditioner, and then the remote control air conditioner operates according to its determined operation mode, thereby replacing the judgment function of the air conditioner itself and directly controlling the air conditioner in the manner of the present invention. Operation, and then achieved a more energy-saving effect.

In order to explain the technical features of the present invention in detail, the following preferred embodiments are described in conjunction with the drawings as follows, wherein:

As shown in FIG. 1 to FIG. 3, an energy-saving control method for an air conditioner provided by the first preferred embodiment of the present invention mainly includes the following steps:

A) Turn on the air conditioner: As shown in FIG. 2, a controller 11 is used to turn on an air conditioner 21 for operation. The controller 11 presets a target temperature TT, and the controller 11 has a microcomputer. 12. There are at least three operating modes of the air conditioner 21: minimum energy consumption mode, standard mode and high output mode. Some air conditioners may not be classified by the type of operation. For example, multi-stage variable frequency air conditioners can be operated by compressors. The speed and the running speed of the fan vary. The adjustment of these functions can also produce the lowest energy consumption mode, high output mode, standard mode and other modes. Such an architecture is still covered by the technical concept of this case. The controller 11 is a remote controller of the air conditioner in the first embodiment. The remote controller is an infrared signal to remotely control the air conditioner 21.

B) Obtaining the trend of room temperature: As shown in FIG. 3, the microcomputer 12 obtains the current room temperature at a predetermined time by a temperature sensor 14 and obtains a total of six current room temperature CTs. The complex current room temperature CT is used to judge the room temperature change trend during this period. In this embodiment, the aforementioned predetermined time is suitable for 10-20 seconds, and 15 seconds is taken as an example. The temperature sensor 14 may be provided on the controller 11 or externally. The externally connected device that is electrically connected to the microcomputer 12 in a wired or wireless manner is known in the art, and therefore cannot be represented in a diagram. In fact, the room temperature value obtained can be accurate to one digit below the decimal point. In essence, the larger the number of samples obtained from the current room temperature CT, the easier and more accurate the judgment will be. However, obtaining too many current room temperature CTs will slow down the judgment time. Therefore, in the case of sampling every 15 seconds, Although the trend can be seen more than 3 times, it is still most suitable to determine the trend of room temperature by obtaining the current room temperature CT 5-6 times.

C) Temperature judgment: The microcomputer 12 judges whether the plurality of current room temperature CTs are all higher than the target temperature TT by a predetermined value or more. If "Yes", then proceed to the next step; if "No", the microcomputer 12 That is, the controller 11 sends a remote control signal to instruct the air conditioner 21 to operate in the lowest energy consumption mode, and returns to step B). Therefore, when the controller 11 is in actual use, the remote control signal is used to command the air conditioner. 21, it is more appropriate to keep the controller 11 facing the air conditioner 21. The aforementioned minimum energy consumption mode refers to a supply mode in which the air volume is the lowest and the compressor in the air conditioner 21 is continuously running, or the air volume is the lowest and the compressor is operating at the lowest speed, or the air volume is the lowest. In addition, in this embodiment, the foregoing predetermined value is appropriately 0.5-1 ° C (Celsius temperature), and 0.5 ° C is taken as an example. In the aforementioned "No" condition, whether the current room temperature CT is partially lower than the target temperature TT, or all of them are lower than the target temperature TT, this means that the current room temperature is already close. Or if it is lower than the target temperature TT, no further cooling is required, so the air conditioner 21 is operated in the lowest energy consumption mode.

D) Trend judgment: Based on the room temperature change trend, the microcomputer 12 judges whether the current room temperature CT is showing a decreasing trend, that is, whether the plural current room temperature CT is lower and the temperature is lower. If "yes", then the The microcomputer 12 then sends a remote control signal through the controller 11 to instruct the air conditioner 21 to use the target temperature TT as the set temperature for its operation, and instructs the air conditioner 21 to operate in the standard mode, and returns to step B). "No", then proceed to the next step. Figure 3 shows that the trend of room temperature is decreasing. In this step D), the above-mentioned "yes" condition is because the tendency of the room temperature to decrease means that the current operation of the air conditioner 21 can effectively reduce the room temperature, and therefore, no change is required, so that The air conditioner 21 continues to operate in its standard mode. The aforementioned “No” condition means that the trend of the room temperature is not reduced, that is, the current operation of the air conditioner 21 cannot reduce the room temperature.

E) High output mode: The microcomputer 12 sends a remote control signal through the controller 11 to instruct the air conditioner 21 to operate in high output mode, and returns to step B). The aforementioned high output mode refers to a state where the air volume is high and the compressor is continuously running, or the air volume is the highest and the compressor is operating at the highest speed. In this step, since the room temperature is higher than the target temperature TT, and the trend of room temperature does not decrease, it is judged that it is necessary to provide a cooling effect with a higher or highest operating energy, so it is performed in a high output mode Operational.

It can be known from the above steps that the present invention is a continuous loop from step B) to step E), and the air conditioner 21 can be determined to operate in the lowest energy consumption mode and air conditioner by judging the current room temperature change trend. The machine's own automatic mode or high output mode, so as to achieve more energy-saving effects. In addition, the present invention determines the operation mode of the air conditioner 21 by using a remote controller, and further the remote air conditioner 21 operates according to the operation mode determined by the remote control.

Please refer to FIG. 4 again. An energy-saving control method for an air conditioner provided by a second preferred embodiment of the present invention is mainly similar to the first embodiment disclosed above, except that:

In step D), under the condition that the room temperature change trend is a decreasing trend, if the gap between the adjacent current room temperature CTs in the room temperature change trend is getting smaller, it represents the room temperature change. The trend is to ease. The microcomputer 12 reduces the size of the predetermined value to a predetermined ratio. For example, if the predetermined value is originally 1 ° C, it is reduced to 80% and becomes 0.8 ° C. If the gap between the adjacent current room temperature CTs in the room temperature change trend is getting larger, it means that the room temperature change trend is becoming more severe. The microcomputer 12 increases the predetermined value to a predetermined value. For example, if the predetermined value is 1 ° C, the ratio is increased to 120% and becomes 1.2 ° C.

The foregoing technology can fine-tune the predetermined value by changing the room temperature trend, and increase the predetermined value when the change trend is severe, so that the gap between the room temperature and the predetermined value is more easily reduced when the room temperature decreases, which can make the change drastic. The difference between the room temperature and the target temperature TT reaches the predetermined value more quickly. For example, when the room temperature changes sharply, it means that the air-conditioner 21 is operating too well at this time to reduce the room temperature too quickly. At this time, if the predetermined value is 0.5 ° C, increasing the predetermined value to 0.6 ° C allows The difference between the room temperature and the target temperature TT reaches the predetermined value more quickly. Furthermore, in step C), it is judged as "No" and operates in the lowest energy consumption mode. At this time, the energy saving effect can be achieved. And when the aforementioned room temperature change trend is tending to ease, that means that the operation of the air-conditioner 21 at this time will only slowly decrease the room temperature. Therefore, it is judged that the current operation mode of the air-conditioner 21 is the most suitable mode, so lower the The predetermined value, so that the difference between the room temperature and the target temperature TT does not reach the predetermined value too quickly, so that the room temperature can more accurately approach the target temperature TT.

The remaining steps of the second embodiment and the effects that can be achieved are the same as those of the first embodiment disclosed previously, and will not be described again.

Please refer to FIG. 5 again. An energy-saving control method for an air conditioner provided by a third preferred embodiment of the present invention is mainly similar to the first embodiment disclosed above, except that:

The controller 11 ′ is a controller provided in the air conditioner 21 ′, rather than a remote controller. The temperature sensor 14 ′ is provided in the air conditioner 21 ′. The figure shows that the temperature sensor 14 ′ is It is installed in the controller 11 'of the air conditioner 21'.

Since the controller 11 'in the third embodiment is the controller of the air conditioner 21' itself, it is not to remotely command the air conditioner 21 'in control, but directly issues a control command to the air conditioner. 21 'for direct control. As for the control method, it is the same as that of the first embodiment.

The remaining method steps and the effects that can be achieved in this third embodiment are the same as those in the first embodiment, and will not be described again.

11‧‧‧ Controller

12‧‧‧ Microcomputer

14‧‧‧Temperature sensor

21‧‧‧ air conditioner

CT‧‧‧Current room temperature

TT‧‧‧ target temperature

11’‧‧‧ Controller

14’‧‧‧Temperature sensor

21’‧‧‧ air conditioner

FIG. 1 is a flowchart of a first preferred embodiment of the present invention. Figure 2 is a block diagram of the first preferred embodiment of the present invention. Figure 3 is a schematic diagram of the operation of the first preferred embodiment of the present invention, showing the measured current room temperature and the target temperature. FIG. 4 is a flowchart of a second preferred embodiment of the present invention. FIG. 5 is a block diagram of a third preferred embodiment of the present invention.

Claims (7)

An energy-saving control method for an air conditioner includes the following steps: A) turning on the air conditioner: turning on an air conditioner with a controller to operate, wherein the controller presets a target temperature and the controller has a microcomputer, There are at least three operating modes of the air conditioner: minimum energy consumption mode, standard mode and high output mode; B) Obtaining the trend of room temperature: The microcomputer obtains the current room temperature at a predetermined time by a temperature sensor. A total of at least three current room temperatures were obtained, and the obtained current room temperature was used to determine the trend of room temperature changes during this period; C) Temperature judgment: the microcomputer judged whether the current room temperature of the plurality was higher than the target temperature Above a predetermined value, if yes, then proceed to the next step, if not, then the controller instructs the air conditioner to operate in the lowest energy consumption mode, and returns to step B); D) trend judgment: by the The temperature changes the room temperature. The microcomputer judges whether the current room temperature is decreasing, that is, whether the current room temperature is lower and the temperature is lower. If so, the controller Order the air conditioner to use the target temperature as the set temperature for its operation, and order the air conditioner to operate in the standard mode, and return to step B), if not, proceed to the next step; and E) High output mode: The controller commands the air conditioner to operate in the high output mode, and returns to step B). The energy-saving control method for an air conditioner according to item 1 of the scope of patent application, wherein: in step C), the minimum energy consumption mode means that the air volume is the lowest and the compressor in the air conditioner is continuously running, or the air volume is the lowest and the compressor is Lowest speed operation, or air supply mode with the lowest air volume. In step E), the high output mode refers to a state in which the air volume is high and the compressor is continuously running, or the highest air volume is in the state where the compressor is operating at the highest speed. The energy-saving control method for an air conditioner according to item 1 of the scope of patent application, wherein: in step B), the predetermined time is 10-20 seconds; in step C), the predetermined value is 0.5-1 ° C (Celsius) temperature). The energy-saving control method for an air conditioner according to item 1 of the scope of patent application, wherein: in step D), under the condition that the room temperature change trend is a decreasing trend, each of the adjacent current rooms in the room temperature change trend If the difference between temperature is getting smaller, it means that the trend of the room temperature is tending to decrease. The microcomputer reduces the predetermined value to a predetermined ratio; each of the adjacent current room temperatures in the room temperature trend If the gap between them is getting larger and larger, it means that the change trend of the room temperature is becoming drastic, and the microcomputer increases the predetermined value to a predetermined ratio. The energy-saving control method for an air conditioner according to item 1 of the scope of patent application, wherein the controller is a controller provided in the air conditioner itself, and the temperature sensor is provided in the air conditioner. The energy-saving control method for an air conditioner according to item 1 of the scope of patent application, wherein: the controller is a remote controller of the air conditioner, and the remote controller is an infrared signal to remotely control the air conditioner. The energy-saving control method for an air conditioner according to item 1 of the scope of patent application, wherein the temperature sensor is provided on the controller.