JP2006084150A - Air-conditioning system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a comfortable air-conditioning system by using the ambient temperature of a sensor unit and relative position information of the sensor unit, by detecting a relative position of the sensor unit placed in a position separate from an indoor unit and having a sensor for detecting the ambient temperature. <P>SOLUTION: This air-conditioning system is composed of the indoor unit 5 having a wireless signal receiving means 1, two sound wave generating means composed of a first sound wave generating means 2 and a second sound wave generating means 3 and a first control means 4, and the sensor unit 9 having a wireless signal transmitting means 6, a sound wave detecting means 7, a second control means 8 and the sensor; and specifies the relative position of the sensor unit 9 viewed from the indoor unit 5 by the length of an interval between the detected times, by detecting respective sound waves by the sound wave detecting means 7, by generating the sound waves by alternately driving the two sound wave generating means. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an air conditioning system capable of supplying air conditioning that is comfortable for a user in a room by using temperature information obtained by a sensor unit installed at a position distant from the indoor unit.

In the conventional air conditioning system, as shown in FIG. 17, a suction temperature sensor 42 is used as a method for controlling the temperature in the room based on temperature information of a temperature sensor provided in addition to the temperature sensor 42 provided in the indoor unit 5. In the configuration including the indoor unit 5 including the blower 43, the sensor unit 47 placed on the floor, and the blower 46 including the fan 44 and the temperature sensor 45, the suction temperature sensor 42, the temperature sensor 45, A method of performing room temperature control and air circulation based on temperature information obtained from the sensor unit 47 is known (see, for example, Patent Document 1).

Further, a desktop sensor has been devised as a temperature sensor that is placed on a table or the like, detects the temperature, and transmits infrared rays to the indoor unit 5 (see, for example, Patent Document 2).
JP 7-248142 A JP-A-6-215287

  However, in the conventional configuration, the sensor unit 47 is arranged away from the indoor unit 5 and the position information of the sensor unit 47 that detects temperature information cannot be obtained. I couldn't get information about where the temperature is in the room.

  In order to obtain the position information of the sensor unit 47, it is necessary for the user to arrange the sensor unit 47 at a predetermined position. If the user moves the sensor unit 47 to an arbitrary position and uses it, temperature data at an unexpected position is used. There was a problem that it was not to acquire.

  The present invention solves the above-mentioned conventional problems, and has a position detection function capable of detecting the relative position between the indoor unit 5 and the sensor unit 47 of the air conditioning system by a simple method, and the obtained sensor unit. An object of the present invention is to provide a user-friendly air conditioning system by performing temperature control, wind direction, and air volume control using the position and direction of 47 and information on the ambient temperature of the sensor unit 47.

  In order to solve the above-mentioned problems, an air conditioning system according to the present invention includes an indoor unit including a plurality of sound wave generating means and a wireless signal receiving means, a sound wave detecting means, a wireless signal transmitting means, and a sensor unit including a temperature sensor. The air conditioning system includes a relative position between the sound wave generation unit and the sensor unit based on a time difference until each sound wave generated by the plurality of sound wave generation units is detected by the sound wave detection unit. And the ambient temperature detected by the sensor unit is transmitted to the indoor unit, and the indoor unit is obtained based on the received relative position of the sensor unit and the temperature information or from a suction temperature sensor in the indoor unit. Based on a weighted average with temperature information, room temperature control is performed by compressor control, etc. Based on the temperature information around capacitors units performs control to close the wind direction of the indoor unit in the estimated position direction of the sensor unit, or away.

  The present invention also detects the speed at which the temperature around the sensor unit approaches the set temperature from the amount of change in temperature information of the sensor unit, and performs air volume adjustment control in accordance with the air direction control of the indoor unit.

  In addition, according to the present invention, by using an ultrasonic sensor excellent in straightness as the sound wave generating means, it is excellent in quietness and the direction detection accuracy of the sensor unit can be further increased.

  Further, according to the present invention, by arranging the wireless transmission means in at least two directions, the wireless signal transmission / reception performance between the sensor unit and the indoor unit can be improved, and the arrangement restriction of the sensor unit can be greatly reduced.

  Further, the present invention can improve the wireless signal transmission / reception performance by providing a rotation unit in the sensor unit and providing the transmission unit with a wireless transmission unit and changing the transmission direction multiple times to perform wireless transmission. it can.

  Further, the present invention changes the blowing direction by providing a blowing means in the rotating part, or makes the wind flow around the sensor unit comfortable for the user by rotating the operation, and air circulation. Can be optimal.

  Moreover, this invention can share a wireless transmission means by sharing a sensor unit with the remote controller of an air conditioning system.

  In addition, the present invention also uses the sensor unit also as a remote controller of the air conditioning system, and the air flow provided in the sensor unit based on the relationship between the temperature obtained by the temperature sensor in the sensor unit and the set temperature of the air conditioning system. A predetermined air volume control is performed by the means.

  The air conditioning system of the present invention detects the ambient temperature information obtained by the sensor unit installed at a position away from the indoor unit and the relative position of the indoor unit and the sensor unit, thereby detecting the ambient temperature of the sensor unit and the air conditioning system. Since the air direction can be directed to the sensor unit or the air direction can be avoided based on the relationship with the set temperature, it is possible to provide air conditioning that is comfortable for indoor users.

  A first invention is an air conditioning system including an indoor unit including a plurality of sound wave generating means and a wireless signal receiving means, and a sensor unit including a sound wave detecting means, a wireless signal transmitting means, and a temperature sensor, An ambient temperature detected by the sensor unit, wherein the relative position between the sound wave generator and the sensor unit is specified based on a time difference until each of the sound waves generated by the plurality of sound wave generators is detected by the sound wave detector. Is transmitted to the indoor unit, and the indoor unit controls the air direction of the indoor unit based on the received relative position of the sensor unit and the ambient temperature. By using a sound wave having a relatively low transmission speed, the sensor is separated from two sound wave generating means that are separated The transmission time difference of the sound wave to the knit can be detected accurately, whether the sensor unit is how close to the two respective wave generating device can be detected with high accuracy.

In addition, since the indoor unit obtains the information by the wireless receiving means, it is possible to obtain the direction of the sensor unit viewed from the indoor unit and the ambient temperature information of the sensor unit. For example, the ambient temperature of the sensor unit becomes the target temperature. If not, the wind direction of the indoor unit is directed toward the sensor unit, and if the target temperature is reached, the wind direction is removed from the sensor unit direction. By controlling the above, it is possible to provide a comfortable air-conditioning environment for the user by causing the temperature at a position away from the indoor unit to quickly reach the target value.

  According to a second aspect of the invention, particularly in the first aspect of the invention, the sensor unit wirelessly transmits the ambient temperature to the indoor unit at regular intervals.

  With this configuration, the indoor unit detects from the time change in the ambient temperature of the sensor unit the degree to which the sensor unit ambient temperature approaches the set temperature of the air conditioning system, and adjusts the air volume according to a predetermined degree. By adjusting the temperature, the temperature at a position away from the indoor unit can quickly reach the target value, thereby providing a comfortable air-conditioning environment for the user.

  In the third aspect of the invention, in particular, by using an ultrasonic sensor as the sound wave generating means of the first and second aspects of the invention, the direction of the sensor unit can be detected silently, thereby realizing a detection method with excellent silence. In addition, by using the sound wave generation means that is excellent in straightness, the direction detection accuracy of the sensor unit can be further increased.

  In the fourth invention, since the wireless transmission means of the first to third inventions are arranged in at least two directions, the influence of directivity in the transmission signal can be reduced, so that the sensor unit is moved to the indoor unit. The area where wireless signals can be transmitted / received can be expanded, and the arrangement restrictions of the sensor unit can be greatly reduced.

  According to a fifth aspect of the present invention, in particular, the sensor unit according to the first to fourth aspects is provided with a rotation unit, the rotation unit includes a wireless transmission unit, and wireless transmission is performed by changing the transmission direction a plurality of times and performing wireless transmission. The transmission / reception performance of the sensor unit can be greatly reduced even in a single wireless transmission means installed in a single direction.

  According to the sixth aspect of the present invention, in particular, by providing a blowing means in the rotating part of the fifth aspect of the invention, the direction of the blowing is changed or the rotating operation is performed according to the user's will, so that the wind around the sensor unit can be changed. The flow can be made comfortable for the user and can be close to the optimum flow in the air circulation.

  In the seventh aspect of the invention, the wireless transmission means can be shared by using the sensor unit of the first to sixth aspects of the invention together with the remote controller of the air conditioning system, so that the system can be configured at low cost.

  Moreover, since the set temperature information of the air conditioning system can be acquired in the sensor unit, there is an advantage that no new parts are required to transmit the set temperature information, which is information in the indoor unit, to the sensor unit.

  The eighth aspect of the invention is based on the relationship between the temperature obtained by the temperature sensor in the sensor unit and the set temperature of the air-conditioning system. By performing air flow control determined in advance so that the air flow is gradually reduced until the set temperature is reached by the air blowing means provided in the sensor unit, a comfortable sensible temperature for the user is obtained especially during cooling. be able to.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a configuration diagram of an air conditioning system according to a first embodiment of the present invention.

  In FIG. 1, the air conditioning system of the present invention includes an indoor unit 5 and a sensor unit 9.

  The indoor unit 5 includes a wireless signal receiving means 1, a first sound wave generating means 2 comprising a speaker or a buzzer, a second sound wave producing means 3, a first control means 4 comprising a microcomputer, etc., and a suction temperature sensor 10. The sensor unit 5 includes a wireless signal transmission unit 6, a sound wave detection unit 7 including a microphone, a second control unit 8, and a temperature sensor 11.

  FIG. 2 is a configuration diagram of the air conditioning system according to the present embodiment.

  In FIG. 2, the distances from the first sound wave generating means 2 and the second sound wave generating means 3 to the sensor unit 9 are L1 and L2, respectively. In the present invention, the direction of the sensor unit 9 viewed from the indoor unit 5 is detected by obtaining the difference between L1 and L2 using the sound waves generated from the two sound wave generating means 2 and 3. Details of the control are described below.

  FIG. 3 is a timing chart in the present embodiment.

  In FIG. 3, the first control means 4 generates sound waves for each period T2 in the order of the first sound wave generation means 2, the second sound wave generation means 3, and the first sound wave generation means 2 every time T1.

  At this time, the sound waves generated from the first sound wave generation means 2 and the second sound wave generation means 3 may be the same or different.

  In the sound wave detection means 7 such as a microphone provided in the sensor unit 9 at a distance L1 from the first sound wave generation means 2 and a distance L2 from the second sound wave generation means 3, the distances L1 and L2 must be equal. For example, the time T3 until the sound wave generated from the first sound wave generating means 2 is detected is different from the time T4 until the sound wave generated from the second sound wave generating means 3 is detected. As described above, the time T5 from the time when the detection of the sound wave generated by the first sound wave generation unit 2 is started to the time when the detection of the sound wave from the second sound wave generation unit 3 is started, The detection start time of the sound wave generated from the sound wave generation unit 3 is different from the time T6 until the next detection start time of the sound wave from the first sound wave generation unit 2.

  The transmission speed of the sound wave is about 330 m / s, and the difference between the distances L1 and L2 from the two sound wave generating means is about several centimeters to several tens of centimeters considering the physical size of the indoor unit 5. Therefore, the difference between time T3 and time T4 is on the order of ms.

  This time difference is an order sufficient for measurement using a general timer function of the second control means 8 constituted by a microcomputer operating with a clock of MHz order.

  In the second control means 8, it is finite how close the sensor unit 9 is to the first sound wave generation means 2 or the second sound wave generation means 3 depending on which time T5 or time T6 is greater. The determination is made in stages, and the determination information is transmitted to the indoor unit 5 by the wireless signal transmission means 6.

  Specifically, the value of the difference T5-T6 between time T5 and time T6, which is the interval at which the sound waves generated by the two sound wave generation means 2, 3 are alternately received by the sound wave detection means 7, such as a microphone. Accordingly, the direction of the sensor unit 9 can be detected by a plurality of step settings by using a conversion table for the direction θ of the sensor unit 9 prepared in advance.

  FIG. 4 shows an example of a conversion table in the case of five stages. “An angle θ1 close to the first sound wave generating means 2”, “An angle θ2 slightly close to the first sound wave generating means 2”, “Two” based on the time difference T5-T6 and preset threshold values t1 and t2 By making a five-step determination such as “substantially the center θ3 of the sound wave generating means”, “the angle θ4 slightly close to the second sound wave generating means 3”, and “the angle θ5 close to the second sound wave generating means 3”, the indoor unit The direction of the sensor unit 9 viewed from 5 is detected by a plurality of step settings.

  In the wireless signal receiving means 1 provided in the indoor unit 5, the first control means 4 can know the direction of the sensor unit 9 as viewed from the indoor unit 5 by receiving the wireless signal.

  The position detection may be performed every predetermined time. Moreover, when it is assumed that the position of the sensor unit 9 is not changed frequently, when the wireless signal from the remote controller of the air conditioning system is received, it may be performed according to the setting contents.

  The sensor unit 9 detects the ambient temperature with the temperature sensor 11 provided, and transmits the detected temperature information to the indoor unit 5 using the wireless signal transmission means 6.

  The first control device 4 provided in the indoor unit 5 receives the ambient temperature information wirelessly transmitted from the sensor unit 9 using the wireless signal receiving means 1, and then is set by the user from the remote controller of the air conditioning system. Compare with the set temperature.

  For example, in the cooling operation, when the ambient temperature of the sensor unit 9 is higher than the set temperature by a predetermined value, such as at the start of the operation, a wind direction control unit (in FIG. (Not shown) is used to control the air direction of the indoor unit 5 to approach the direction in which the sensor unit 9 is located.

  Conversely, when the temperature difference between the ambient temperature of the sensor unit 9 and the set temperature becomes equal to or less than a predetermined value, such as when the room temperature approaches the set temperature in the cooling operation, the air direction of the indoor unit 5 is changed to the sensor unit. Control as far away from the direction as possible.

  Further, when the wind direction is set by the user, control is performed so that the wind direction is returned to the setting direction of the user.

  In many cases, the sensor unit 9 is placed near the user. In such a case, according to the present invention, the air direction can be controlled in the direction where the user is preferentially using cold air. The user's ambient temperature can be quickly brought close to the set temperature, and when the user's ambient temperature drops sufficiently, the wind direction is automatically moved away to prevent the user's foot temperature from being cooled more than necessary. can do.

As described above, in the first embodiment, the difference T5 between the times when the two sound wave generating means 2 and 3 are sounded and received by the microphone provided in the sensor unit 9 every certain period T1. By detecting -T6, it is possible to detect the direction of the sensor unit 9 viewed from the indoor unit 5, and based on the comparison between the set temperature of the air conditioning system and the temperature around the obtained sensor unit By controlling the air direction of the indoor unit 5 close to or away from the direction of the sensor unit, it is possible to provide air conditioning that is comfortable for the user.

(Embodiment 2)
FIG. 5 shows a timing chart of the air conditioning system according to the second embodiment of the present invention.
In addition, about the structure of an air conditioning system, since it is the same as the structure in Embodiment 1 shown in FIG. 1, it abbreviate | omits.

  In the air conditioning system according to the second embodiment, the first control means 4 is a buzzer that is the first sound wave generation means 2 and the second sound wave generation means 3 alternately for each time period T1 for each time period T2. To generate a buzzer sound.

  The second control unit 8 is configured to detect a buzzer sound immediately after a buzzer sound generated from each sound wave generation unit is detected by the sound wave detection unit 7 such as a microphone provided in the sensor unit 9 or after a predetermined time t has elapsed. The wireless signal transmitting means 1 transmits a wireless signal indicating that the signal is detected.

  The wireless signal is composed of infrared rays and radio waves, and has a transmission speed much faster than that of sound waves. Therefore, after the wireless signal is transmitted from the sensor unit 9, the wireless signal receiving means 1 provided in the indoor unit 5 is used. Times td1 and td2 until reception are sufficiently small compared with T3 and T4, which are times until the buzzer sound reaches the sensor unit 9 from the first sound wave generation unit 2 and the second sound wave generation unit 3, and ignored. Thus, T7 = T3 + t and T8 = T4 + t can be considered.

  Therefore, in the first control means 4, by measuring the times T7 and T8 from the generation of the buzzer sound from the first sound wave generation means 2 and the second sound wave generation means 3 until the wireless signal is received, respectively. From the difference T7−T8, not only can the direction of the sensor unit seen from the indoor unit 5 be detected, but also the sensors from the first sound wave generating means 2 and the second sound wave generating means 3 using T7 and T8 and the sound velocity. It is also possible to estimate the respective distances L1 and L2 to the unit 9.

  Since the speed of sound changes depending on the temperature, in order to reduce the measurement error of the distances L1 and L2, a temperature sensor generally mounted on the suction temperature sensor 10 or sensor unit 9 provided in the indoor unit 5 is used. It is desirable to detect the room temperature by 11 or the like and perform temperature correction of the estimated values of L1 and L2.

  In the flowchart shown in FIG. 5, the first sound wave generation unit 2 and the second sound wave generation unit 3 are sounded once, but the first sound wave generation unit 2 and the second sound wave generation unit 3 are alternately used. It is possible to further improve the measurement accuracy by measuring each sound wave generating means a plurality of times and taking the average of the time T7 or T8 until reception of the wireless signal for each sound wave generating means. .

Further, the sensor unit 9 measures the ambient temperature by the temperature sensor 11 every predetermined time, transmits the ambient temperature information to the indoor unit 5 using the wireless signal output means 6,
The indoor unit 5 receives the ambient temperature information transmitted from the sensor unit 9 by the wireless signal receiving unit 1.

  The indoor unit 5 performs the wind direction control as described in the first embodiment based on the ambient temperature information of the sensor unit 9, and further calculates the time change rate of the ambient temperature of the sensor unit 9 so that the ambient temperature is the set temperature. The air volume of the indoor unit 5 is controlled according to the degree of approaching.

  FIGS. 6A and 6B show a flowchart of the present embodiment.

  FIG. 6C shows an example of the relationship between the time change rate of the ambient temperature and the air volume change amount of the air volume indoor unit 5 when the ambient temperature of the sensor unit 9 does not reach the set temperature.

  As shown in FIG. 6 (a), the indoor unit 5 of the present embodiment is configured as shown in FIG. 6 (b) when the time change rate of the ambient temperature of the sensor unit 9 is slower than a predetermined lower limit speed. As shown in c), control is performed so as to increase the air volume of the indoor unit 5.

  Further, when the time change rate of the ambient temperature is faster than a preset upper limit speed or reaches a set target temperature, control is performed to lower the air volume or return to the set air volume of the remote controller.

  As described above, the air conditioning system of the present embodiment detects the time change rate of the ambient temperature of the sensor unit 9 and the direction of the sensor unit 9 viewed from the indoor unit 5, and the ambient temperature and the set temperature of the sensor unit 9 are detected. By adjusting the air volume in addition to the air direction control of the indoor unit 5 from the comparison with the above and the time change rate of the ambient temperature of the sensor unit 9, the temperature of the place where the sensor unit 9 is placed is set to the set temperature earlier. You can get closer.

(Embodiment 3)
A configuration according to the third embodiment of the present invention is shown in FIG.

  The timing chart for detecting the position of the sensor unit 9 is the same as that in the first embodiment or the second embodiment, and thus the description thereof is omitted.

  In FIG. 7, the air conditioning system includes an indoor unit 5 including a wireless signal receiving unit 1, a first ultrasonic generator 12, a second ultrasonic generator 13, a first control unit 4, and a suction temperature sensor 10. And a sensor unit 9 including a wireless signal transmission unit 6, an ultrasonic sensor 14, a second control unit 8, and a temperature sensor 11.

  Based on the timing chart described in the first or second embodiment, the first control unit 4 drives the first ultrasonic generator 10 and the second ultrasonic generator 11 to generate ultrasonic waves. Based on the timing detected by the sonic sensor 12, the first control means 4 or the second control means 8 has the sensor unit 9 as viewed from the indoor unit 5 including the two ultrasonic generators 12 and 13. The direction can be detected, and the air direction and the air volume of the indoor unit 5 are controlled based on the ambient temperature obtained by wireless transmission from the sensor unit 9.

  In the present embodiment, since an inaudible ultrasonic wave is used for detecting the position of the sensor unit 9, it is possible to detect the direction of the sensor unit 9 without generating a sound each time the position is detected.

  In addition, ultrasonic waves have strong straightness and better directivity than sound waves. Therefore, the detection accuracy of the direction and distance of the sensor unit 9 can be increased as compared with the direction detection using sound waves.

(Embodiment 4)
FIG. 8 shows the configuration of the wireless transmission means 6 of the sensor unit 9 of the air conditioning system according to the fourth embodiment of the present invention.

  The sensor unit 9 of the air conditioning system according to the present embodiment includes a first infrared LED 18, a second infrared LED 19, and a third infrared LED 20 as a wireless signal transmission means 6 for remote control signals using infrared rays. In addition, a microphone that is the sound wave detection means 7 and a second control means 8 are provided.

  Considering that the normal sensor unit 9 is often placed at a position lower than the indoor unit 5, the first infrared LED 18, the second infrared LED 19, and the third infrared LED 20 are slightly above the horizontal direction. It is attached so as to be inclined in the direction, and is arranged on the same plane so as to form an angle of 120 degrees as viewed from above.

  The three infrared LEDs 18, 19, and 20 simultaneously transmit the same wireless signal by the second control unit 8.

  The sensor unit 9 may be placed at an arbitrary angle as viewed from the indoor unit 5 by the user of the air conditioning system.

  In this embodiment, since the first infrared LED 18, the second infrared LED 19, and the third infrared LED 20 are arranged in three directions, wireless is emitted from at least one infrared LED of the three infrared LEDs. The possibility that the signal reaches the indoor unit 5 is higher than in the case of one infrared LED.

  This reduces the need for the user to pay attention to how the sensor unit 9 is placed.

  The wireless signal transmitting means 6 do not have to be on the same plane, and the number of wireless signal transmitting means 6 may be two or four or more.

(Embodiment 5)
Since the structure of the indoor unit 5 in the air conditioning system of this invention is the same as that of Embodiment 1-4, description is abbreviate | omitted.

  The structure of the sensor unit 9 in the air conditioning system of the 5th Embodiment of this invention is shown in FIG.

  The sensor unit 9 of the present invention includes a rotating unit 21 and a fixed unit 22, and the rotating unit 21 is provided with wireless signal transmitting means 6 such as an infrared remote controller. The sensor 11, the second control device 8, and the motor 25 that rotates the rotating shaft 23 of the rotating unit 21 are provided, and the second control device 8 and the wireless signal transmission means 6 are excellent in flexibility. Are connected by internal wiring 24.

  The power supply of the second control device 8 is supplied by an outlet plug 26 attached to the fixing unit 22.

  FIG. 10 is a flowchart in which the sensor unit 9 in the air conditioning system of the present invention transmits the direction seen from the indoor unit 5 and the temperature information by the wireless signal transmission means 6 mounted on the rotating unit 21.

  The sensor unit 9 of the present invention once transmits the information about the direction detection and the temperature information viewed from the indoor unit 5 by the wireless signal transmission means 6 after moving the angle of the rotating part 21 to the initial position by the motor 25. .

  Thereafter, after the rotating unit 21 is rotated by the motor 25 by a predetermined angle θ, information on the direction detection seen from the indoor unit 5 and temperature information are wirelessly transmitted again. By repeating this a plurality of times, the same wireless signal is transmitted in a plurality of directions as viewed from the sensor unit 9.

  In general, since the sensor unit 9 may be placed in any place in the room, the sensor unit 9 cannot know the direction of the indoor unit 5 as viewed from the sensor unit 9.

  When the wireless transmission unit 6 is configured by a transmission unit of a single infrared remote controller, the direction of the wireless signal transmission unit 6 is opposite to the indoor unit 5 depending on the direction in which the sensor unit 9 is placed. For example, the wireless signal transmitted from the sensor unit 9 may not reach the wireless signal receiving means 1 in the indoor unit 5.

  The sensor unit 9 according to the present embodiment has the wireless signal transmission unit 6 mounted on the rotating unit 21 and wirelessly transmits the same information in various directions divided into a plurality of times, thereby providing a single wireless signal transmission unit 6. Even if it is only, it becomes possible to improve the precision of communication between the sensor unit 9 and the indoor unit 5 over a maximum of 360 degrees.

(Embodiment 6)
FIG. 11 is a diagram illustrating the configuration of the sensor unit 9 of the air-conditioning system according to the sixth embodiment of the present invention.

  Note that the timing chart for detecting the position of the sensor unit 9 is the same as in the first to fifth embodiments, and thus the description thereof is omitted.

  The air conditioning system of the present embodiment includes an indoor unit 5 including a wireless signal receiving unit 1, a first sound wave generating unit 2, a second sound wave generating unit 3, and a first control unit 4, and a sensor. And a unit 9.

  The sensor unit 9 includes a rotating unit 21 and a fixed unit 22, and the fixed unit 22 includes a power source (not shown) and second control means 8. The temperature sensor 11, the wireless signal transmission means 6, the sound wave detection means 7, and the blower means 27 including a fan are provided.

  FIG. 12 shows a timing chart for driving the air blowing means 27 of the present embodiment.

  The second control unit 8 of the sensor unit 9 drives the blowing unit 27 while rotating the rotating unit 21 left and right by the motor 25 for a predetermined time tb set in advance every predetermined time lapse ta, Blows like rotating operation of a fan.

  By the above control, it is possible to greatly reduce the possibility that heat will be accumulated in the sensor unit 9.

  Further, by disposing the sensor unit 9 at a position away from the user and setting the air volume of the air blowing means 27 to be large, the indoor air circulation can be promoted, and the temperature unevenness particularly in the room between the upper and lower sides can be reduced. Therefore, it is possible to provide a comfortable air conditioning environment for the user.

(Embodiment 7)
FIG. 13 shows the configuration of the sensor unit 9 according to the seventh embodiment of the present invention.

  Note that the timing chart relating to the position detection of the sensor unit 9 is the same as in the first to sixth embodiments, and is therefore omitted.

  As shown in FIG. 13, the sensor unit 9 of the air conditioning system in the present embodiment is configured with various setting means 31 including buttons and the like for operating the indoor unit 5 and liquid crystal, and displays setting information. Display means 32 and has a function of a remote controller of the air conditioning system.

  Generally, a remote controller is equipped with a wireless signal transmission means 6 for transmitting an infrared signal to the indoor unit 5, so that the wireless signal transmission means 6 can be shared by using the sensor unit 9 also as a remote controller. Rather than providing the sensor unit 9 and the remote controller separately, the entire system can be configured at low cost.

  Furthermore, by also using the remote controller, the second control device 8 recognizes the setting information such as the setting temperature and the wind direction to be transmitted when wirelessly transmitting the setting information such as the setting temperature to the indoor unit 5. Therefore, the sensor unit 9 can obtain the set temperature information of the air conditioning system without newly requiring a wireless signal communication means from the indoor unit 5 to the sensor unit 9.

  The sensor unit 9 according to the present embodiment transmits the temperature information to the indoor unit 5 only when the difference between the set temperature and the ambient temperature is large, compared with the case where the sensor unit 9 transmits the information at regular intervals. This can be achieved by greatly reducing the number of times wireless signals are transmitted from 9.

  Therefore, in the case where the power source of the sensor unit 9 is configured from a rechargeable battery instead of from an outlet, it is possible to greatly extend the operating life in one charge.

(Embodiment 8)
FIG. 14 shows the configuration of the sensor unit 9 in the air conditioning system according to the eighth embodiment of the present invention.

  Note that the timing chart for detecting the position of the sensor unit 9 is the same as in the first to seventh embodiments, and is therefore omitted.

  The air conditioning system according to the present embodiment includes an indoor unit 5 including a wireless signal receiving means 1, a first sound wave generating means 2, a second sound wave generating means 3, and a first control means 4, and a wireless signal transmitting means. 6 and a sensor unit 9 including a sound wave detection means 7 comprising a microphone, a second control device 8, a temperature sensor 11 and a blower means 27, and further comprising a remote control setting means 31 and also serving as a remote controller. Composed.

  Further, the sensor unit 9 is configured to store information such as a set temperature and a set air volume that are recognized when the user uses the sensor unit 9 as a remote controller when the remote control setting unit 31 including buttons is pressed. Information storage means 32 is provided.

  When the user changes the set temperature, the second control means 8 of the sensor unit 9 wants the user to enhance the effect of cooling or heating from the change direction of the set temperature and the ambient temperature of the sensor unit 9. Determine whether the user wants to weaken or not.

  FIG. 15 shows a flowchart of the air volume control of the air blowing means 27 of the sensor unit 9 with respect to the set temperature in the air conditioning system according to the present embodiment.

  The second control device 8 in the sensor unit 9 compares the newly set temperature with the previous set temperature stored in the setting information storage unit 32.

  As a result of the comparison, when the user's intention is to increase the cooling or heating effect, the air volume of the blowing means 27 is controlled to be large, and conversely, when the user wants to weaken the air volume, the air volume of the blowing means 27 is controlled to be small. To do.

  FIG. 16 shows a flowchart of the air volume control of the air blowing means 27 of the sensor unit 9 with respect to the set air volume in the air conditioning system according to the present embodiment.

  When the remote control setting unit 31 is operated by the user and the set air volume is changed by the user, the second control device 8 sets the newly set air volume and the previous setting stored in the setting information storage unit 32. When the setting is changed so that the air volume becomes stronger by comparing the air volume, the air volume of the air blowing means 27 of the sensor unit 9 is increased, and conversely, when the air volume is set to be weaker The air volume of the blowing means 27 is controlled to be small.

  With the above-described configuration and control, the air conditioning system of the present invention can control the air volume of the air blowing means 27 provided in the sensor unit 9 with a simple configuration, and the sensory temperature can be increased in a direction that emphasizes the user's intention. Since it can be changed, it is possible to provide a more comfortable air-conditioning environment for the user.

  In the present invention, the plurality of sound wave generating means are provided in the indoor unit, and the sound wave detecting means is provided in the sensor unit. However, the present invention is not limited to the configuration in which the sound wave generating means is provided in the sensor unit and the sound wave detecting means is provided in the indoor unit. It does n’t change.

  As described above, the air conditioning system according to the present invention can detect the direction and sensor information of a sensor unit placed at a position away from the device with a simple configuration and use it for controlling the device. Sensors are also placed at different locations and linked to information such as temperature / humidity and air pollution to control electric devices such as electric fans, heaters such as electric carpets and oil fan heaters, and air purifiers. Can be applied.

The block diagram of the air conditioning system in the 1st Embodiment of this invention The block diagram of the indoor unit of the air conditioning system in Embodiment 1 of this invention Timing chart representing position detection of sensor unit in the first embodiment of the present invention The figure which shows the conversion table of the space | interval between the sound wave detection time from two sound wave generation means and the relative position of a sensor unit in the 1st Embodiment of this invention. Timing chart showing the position detection of the sensor unit in the second embodiment of the present invention Flow chart of air volume control of indoor unit in the second embodiment of the present invention The block diagram of the air conditioning system in the 3rd Embodiment of this invention The block diagram of the wireless signal transmission means of the sensor unit in the 4th Embodiment of this invention The block diagram of the sensor unit in the 5th Embodiment of this invention Flowchart of wireless signal transmission of sensor unit in the fifth embodiment of the present invention The block diagram of the sensor unit in the 6th Embodiment of this invention Timing chart of blower means drive control in the sixth embodiment of the present invention The block diagram of the sensor unit in the 7th Embodiment of this invention The block diagram of the sensor unit in the 8th Embodiment of this invention Flowchart of air volume control of air blowing means for change of set temperature in air conditioning system in eighth embodiment of the present invention. Flowchart of air volume control of air blowing means for set air volume change in air conditioning system in eighth embodiment of the present invention. Configuration diagram of conventional air conditioning system

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wireless signal receiving means 2 1st sound wave generation means 3 2nd sound wave generation means 4 1st control means 5 Indoor unit 6 Wireless signal transmission means 7 Sound wave detection means 8 2nd control means 9 Sensor unit 10 Suction temperature sensor DESCRIPTION OF SYMBOLS 11 Temperature sensor 12 1st ultrasonic generator 13 2nd ultrasonic generator 14 Ultrasonic sensor 15 1st infrared LED
16 Second infrared LED
17 Third infrared LED
DESCRIPTION OF SYMBOLS 21 Rotation part 22 Fixing part 23 Rotating shaft 24 Connection electric wire 25 Motor 26 Outlet plug 27 Blowing means 31 Remote control setting means 32 Display means 33 Setting information storage means 42 Suction temperature sensor 43 Blower 44 Fan 45 Temperature sensor 46 Blower 47 Sensor unit

Claims (8)

An air conditioning system comprising an indoor unit having a plurality of sound wave generating means and a wireless signal receiving means, a sound wave detecting means, a wireless signal transmitting means, and a sensor unit having a temperature sensor, wherein the plurality of sound wave generating means The relative position between the sound wave generation means and the sensor unit is specified based on the time difference until each sound wave generated is detected by the sound wave detection means, and the ambient temperature detected by the sensor unit is transmitted to the indoor unit. The indoor unit performs air direction control of the indoor unit based on the received relative position of the sensor unit and the ambient temperature. The air conditioning system according to claim 1, wherein the air volume control of the indoor unit is performed in accordance with a time change of the ambient temperature obtained from the sensor unit. The air conditioning system according to claim 1, wherein the sound wave generating means is an ultrasonic generator, and the sound wave detecting means is an ultrasonic sensor. The air conditioning system according to any one of claims 1 to 3, wherein the wireless signal transmission means provided in the sensor unit is mounted in at least two directions. The sensor unit includes a rotation unit, and the rotation unit includes a wireless signal transmission unit, and transmits the wireless signal a plurality of times while rotating the rotation unit. 4. The air conditioning system according to any one of 4. The air conditioning system according to claim 5, wherein the sensor unit includes a blowing unit in the rotating part. The air conditioning system according to any one of claims 1 to 6, wherein the sensor unit also serves as a remote controller of the air conditioning system. The sensor unit includes air blowing means, and sets the air volume of the air blowing means to a predetermined air volume based on the ambient temperature detected by the sensor unit and the set temperature of the remote controller of the air conditioning system. The air conditioning system according to claim 7, wherein the air conditioning system is operated.

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