Vortex ring direction control method, air conditioner, device and readable storage medium

Abstract

The application discloses a vortex ring direction control method, an air conditioner, a control device and a computer readable storage medium, and is used for a vortex ring generating device with a vortex ring nozzle assembly. The vortex ring direction control method takes an angle between a user and a central axis of the vortex ring nozzle assembly as a target deflection angle, determines a direction control reference, takes an angle between the vortex ring and the central axis of the vortex ring nozzle assembly as an initial deflection angle, reduces an adjustment error caused by deflection of the vortex ring in an initial state, and takes a difference between the target deflection angle and an actual emission angle of the vortex ring generating device after deflection less than or equal to a first preset value as a necessary condition for completing the vortex ring direction control. The vortex ring generating device can be in a closed loop control mode to continuously adjust the vortex ring generating direction until the effect of accurate point placement is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, and in particular to a vortex ring direction control method, an air conditioner, a control device and a computer readable storage medium. BACKGROUND

[0002] An air conditioner can use a vortex ring generating device to direct air flow, which has the advantages of stable structure and strong long-distance targeting. In related technologies, the fixed-point launching process of the vortex ring generating device is often open-loop control, which results in low accuracy of actual vortex ring fixed-point launching and poor user experience. SUMMARY

[0003] The present application aims to at least solve one of the technical problems in the prior art. To this end, the present application provides a vortex ring direction control method that can effectively improve the accuracy of vortex ring direction control and improve user experience.

[0004] The present application also provides a control device, an air conditioner and a computer readable storage medium for executing the above-mentioned vortex ring direction control method.

[0005] The vortex ring direction control method according to the first aspect of the present application is used for a vortex ring generating device with a vortex ring nozzle assembly, and the method comprises:

[0006] Obtaining a target deflection angle, the target deflection angle being an angle between a user and a central axis of the vortex ring nozzle assembly;

[0007] Obtaining an initial deflection angle of a vortex ring, the initial deflection angle being an angle between the vortex ring and the central axis of the vortex ring nozzle assembly;

[0008] According to a difference between the target deflection angle and the initial deflection angle, controlling the vortex ring generating device to deflect around the central axis, so that a difference between the target deflection angle and an actual emission angle of the vortex ring generating device after deflection is less than or equal to a first preset value.

[0009] The control method according to the present application has at least the following beneficial effects:

[0010] The vortex ring direction control method of this embodiment is applicable to vortex ring generators with vortex ring nozzle assemblies. The angle between the user and the central axis of the vortex ring nozzle assembly is used as the target deflection angle to determine the direction control reference. The angle between the vortex ring and the central axis of the vortex ring nozzle assembly is used as the initial deflection angle. This reduces the adjustment error caused by the initial deflection of the vortex ring. The difference between the target deflection angle and the actual launch angle after the vortex ring generator deflection is less than or equal to a first preset value is taken as a necessary condition for completing the vortex ring direction control. This allows the vortex ring generator to deflect around its central axis in a closed-loop control mode, continuously adjusting the vortex ring generation direction until a precise, targeted delivery effect is achieved.

[0011] According to some embodiments of the present invention, the vortex ring generator is equipped with a position sensor, and the acquisition of the target deflection angle includes:

[0012] The position sensor detects the relative position information between the user and the vortex ring nozzle assembly;

[0013] The relative position information is converted into an angle between the user and the central axis of the vortex nozzle assembly.

[0014] According to some embodiments of the present invention, the vortex ring nozzle assembly is provided with a plurality of pressure sensors distributed circumferentially, and the acquisition of the initial deflection angle of the vortex ring includes:

[0015] The pressure values ​​at measurement points on the vortex ring nozzle assembly at different phases are detected by multiple pressure sensors.

[0016] The initial deflection angle is calculated based on the pressure values ​​at the measurement points at different phases.

[0017] According to some embodiments of the present invention, calculating the initial deflection angle based on the pressure values ​​at the measurement points of different phases includes:

[0018] Two pressure values, P1 and P2, are selected from the pressure values ​​at the measurement points of the different phases.

[0019] Determine the time Δt during which the vortex ring deflects, the nozzle diameter D of the vortex ring nozzle assembly, the average air resistance F received by the vortex ring generator, the mass m of the vortex ring generator, and the moment of inertia I0 of the vortex ring generator about the central axis; calculate the initial deflection angle δ0 according to the following formula:

[0020]

[0021] According to some embodiments of the present invention, obtaining the initial deflection angle of the vortex ring further includes:

[0022] The pressure values ​​of multiple measurement points with different phases are sorted, and the sorted pressure values ​​of the measurement points are compared pairwise.

[0023] When the ratio between the pressure values ​​of any two measurement points is greater than the second preset value, an alarm signal for vortex ring non-formation is output.

[0024] According to some embodiments of the present invention, obtaining the initial deflection angle of the vortex ring further includes:

[0025] The pressure values ​​of multiple measurement points with different phases are sorted, and the sorted pressure values ​​of the measurement points are compared pairwise.

[0026] When the ratio between any two pressure values ​​at the measurement points is less than or equal to a second preset value, the process of controlling the vortex ring generator to deflect around the central axis based on the difference between the target deflection angle and the initial deflection angle is executed, so that the difference between the target deflection angle and the actual emission angle after the vortex ring generator deflection is less than or equal to a first preset value.

[0027] According to some embodiments of the present invention, the vortex ring generator is provided with a direction control mechanism. The step of controlling the vortex ring generator to deflect around the central axis based on the difference between the target deflection angle and the initial deflection angle, so that the difference between the target deflection angle and the actual emission angle after deflection is less than or equal to a first preset value, includes:

[0028] A deflection angle is determined based on the difference between the target deflection angle and the initial deflection angle;

[0029] The vortex ring generator is driven to rotate around the central axis by the deflection angle via the direction control mechanism.

[0030] When the difference between the target deflection angle and the actual launch angle after the vortex ring generator deflection is less than or equal to the first preset value, the vortex ring direction control is completed.

[0031] According to some embodiments of the present invention, the vortex ring generator is provided with a direction control mechanism. The step of controlling the vortex ring generator to deflect around the central axis based on the difference between the target deflection angle and the initial deflection angle, so that the difference between the target deflection angle and the actual emission angle after deflection is less than or equal to a first preset value, includes:

[0032] The deflection angle is determined based on the difference between the target deflection angle and the initial deflection angle;

[0033] The vortex ring generator is driven to rotate around the central axis by the deflection angle via the direction control mechanism.

[0034] When the difference between the target deflection angle and the actual launch angle after the vortex ring generator deflection is greater than the first preset value, the vortex ring generator is driven by the direction control mechanism to rotate around the central axis by the deflection angle until the difference between the target deflection angle and the actual launch angle after the vortex ring generator deflection is less than or equal to the first preset value, thus completing the vortex ring direction control.

[0035] According to some embodiments of the present invention, the actual emission angle of the vortex ring generator after deflection is equal to the vortex ring emission angle before deflection plus the measured deflection angle Δθ.

[0036] A control device according to a second aspect embodiment of the present invention includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the vortex ring direction control method as described in the first aspect embodiment. Since the control device employs all the technical solutions of the vortex ring direction control method of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments.

[0037] An air conditioner according to a third aspect embodiment of the present invention includes the control device as described in the second aspect embodiment above. Since the air conditioner employs all the technical solutions of the control device of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments.

[0038] A computer-readable storage medium according to a fourth aspect embodiment of the present invention stores computer-executable instructions for performing the vortex ring direction control method as described in the first aspect embodiment. Since the computer-readable storage medium employs all the technical solutions of the vortex ring direction control method of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments.

[0039] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. Attached Figure Description

[0040] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0041] Figure 1 This is a schematic diagram of the structure of an indoor unit of an air conditioner according to an embodiment of the present invention;

[0042] Figure 2 This is a perspective view of a vortex ring generator according to an embodiment of the present invention;

[0043] Figure 3 This is an exploded view of a vortex ring generator according to an embodiment of the present invention;

[0044] Figure 4 This is a flowchart of a vortex ring direction control method according to an embodiment of the present invention;

[0045] Figure 5 This is a flowchart of obtaining the target deflection angle according to an embodiment of the present invention;

[0046] Figure 6 This is a flowchart of obtaining the initial deflection angle of the vortex ring according to an embodiment of the present invention;

[0047] Figure 7 This is a logical framework diagram of sampling, diagnostic alarm and angle calculation in the initial deflection angle acquisition process of the vortex ring according to an embodiment of the present invention;

[0048] Figure 8 This is a flowchart of a vortex ring direction control method according to another embodiment of the present invention.

[0049] Figure label:

[0050] Casing 100, Air outlet 110

[0051] Vortex ring generator 200, nozzle 210, vortex ring nozzle assembly 211, pressure sensor 212, cut-off chamber 220, centrifugal power module 230. Detailed Implementation

[0052] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0053] In the description of this invention, the use of terms such as "first," "second," etc., is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0054] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0055] In the description of this invention, it should be noted that, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0056] Based on users' demand for long-distance directional airflow regulation in air conditioners, the vortex ring generator was developed. The vortex ring generator is installed in the indoor unit of the air conditioner and uses an internal drive mechanism to periodically control the airflow through the cut-off cavity of the vortex ring generator to form a vortex ring.

[0057] Figure 1 This is a schematic diagram of the structure of an indoor unit of an air conditioner according to an embodiment of the present invention; the indoor unit of the air conditioner includes a housing 100 and a vortex generator 200 disposed in the housing 100, and an air outlet 110 is provided on the housing 100. Figure 2 This is a perspective view of a vortex ring generator 200 according to an embodiment of the present invention. The vortex ring generator 200 is located at... Figure 1 Behind the air outlet 110, the vortex ring generator 200 includes a nozzle 210, a cutoff chamber 220, and a centrifugal power module 230 connected in sequence. The centrifugal power module 230 generates airflow, which enters the cutoff chamber 220. The cutoff chamber 220 is equipped with an internally driven mechanism that periodically moves to control the passage and cutoff of the airflow. The airflow passing through the cutoff chamber 220 is emitted as vortex rings through the nozzle 210 and finally delivered to the user or designated area through the air outlet 110. The front end of the nozzle 210 is a vortex ring nozzle assembly 211, from which the vortex rings are directly output to the outside of the vortex ring generator 200.

[0058] To achieve accurate targeted delivery and user-responsive functionality, the vortex ring generator 200 is typically mounted on a mechanical structure such as an oscillating mechanism. Through the mechanical movement of the oscillating mechanism, the nozzle 210 of the vortex ring generator 200 moves within a certain angle range, thereby achieving targeted delivery of the vortex ring. In existing technologies, it is generally assumed that the emission angle of the vortex ring is consistent with the central axis of the nozzle 210. However, in actual use, continuous and prolonged vortex ring emission, or initial vortex ring deflection caused by turbulent airflow inside the fan, often results in the actual emission angle of the vortex ring not being consistent with the central axis of the nozzle 210. Therefore, adjusting the emission angle of the vortex ring based on the relative position of the nozzle 210 and the user will deviate, causing the commands input to the indoor air conditioning unit to fail to achieve targeted delivery and user-responsive functionality. Furthermore, since the adjustment of the mechanical structure often has a certain degree of error, the targeted delivery process is often an open-loop control, and the deflection angle represented by the output command is not entirely consistent with the actual deflection angle.

[0059] Based on this, the vortex ring direction control method provided in this embodiment of the invention is applicable to a vortex ring generator 200 with a vortex ring nozzle assembly 211. Addressing the need for precise vortex ring direction adjustment, and considering issues in the prior art such as the inconsistency between the actual launch angle of the vortex ring and the central axis of the nozzle 210, and errors in open-loop control, the method uses the angle between the user and the central axis of the vortex ring nozzle assembly 211 as the target deflection angle to determine the direction control reference. The angle between the vortex ring and the central axis of the vortex ring nozzle assembly 211 is used as the initial deflection angle, reducing the adjustment error caused by the initial deflection of the vortex ring. The difference between the target deflection angle and the actual launch angle after deflection by the vortex ring generator 200 is less than or equal to a first preset value, which is a necessary condition for completing vortex ring direction control. This allows the vortex ring generator 200 to deflect around its central axis in a closed-loop control mode, continuously adjusting the vortex ring generation direction until precise, targeted delivery is achieved.

[0060] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are some embodiments of the present invention, not all embodiments.

[0061] See Figure 4 The diagram shows a flowchart of a vortex ring direction control method according to an embodiment of the present invention. This vortex ring direction control method includes, but is not limited to, the following steps:

[0062] Step S100: Obtain the target deflection angle, which is the angle between the user and the central axis of the vortex ring nozzle assembly 211;

[0063] It should be noted that obtaining the target deflection angle aims to determine the final direction of the vortex ring deployment. The user is the target of the vortex ring deployment; therefore, when the vortex ring deployment direction and the user are on the same path, the vortex ring direction control is completed. In this embodiment, the central axis of the vortex ring nozzle assembly 211 is selected as the reference reference. As mentioned earlier, since the vortex ring is emitted from the vortex ring nozzle assembly 211, compared to other positions on the indoor unit of the air conditioner, selecting the central axis of the vortex ring nozzle assembly 211 as the reference reference is more accurate and can minimize the impact of positional differences on the accuracy of the actual deflection angle between the vortex ring deployment direction and the user.

[0064] In this embodiment, the target deflection angle is obtained as the angle between the user and the central axis of the vortex ring nozzle assembly 211. It can be measured using a sensor preset on the vortex ring generator 200. The sensor transmits the measured data to the controller of the indoor unit of the air conditioner. The controller can then convert the measured data into a specific target deflection angle. Alternatively, the specific target deflection angle can be matched by looking up a table. This embodiment does not impose any specific restrictions on this.

[0065] Step S200: Obtain the initial deflection angle of the vortex ring. The initial deflection angle is the angle between the vortex ring and the central axis of the vortex ring nozzle assembly 211.

[0066] Ideally, the initial deflection angle of the vortex ring is consistent with the central axis of the vortex ring nozzle assembly 211. However, due to continuous and long-term vortex ring firing, turbulent airflow inside the fan causing initial vortex ring deflection, or manufacturing process issues, the actual firing angle of the vortex ring may not be consistent with the central axis of the nozzle 210. Therefore, it is necessary to measure the initial deflection angle of the vortex ring before controlling the vortex ring firing direction, rather than directly using the central axis of the vortex ring nozzle assembly 211 to represent the firing direction of the vortex ring.

[0067] Similarly, since the vortex ring is emitted from the vortex ring nozzle assembly 211, the central axis of the vortex ring nozzle assembly 211 is selected as the reference reference compared to other positions of the indoor unit of the air conditioner, which is more accurate. Furthermore, since the target deflection angle and the initial deflection angle are selected from the same reference reference, the deflection angle to be controlled can be directly obtained. Compared with selecting different references, this can reduce errors and conversion steps and time.

[0068] It should be noted that the angle between the vortex ring and the central axis of the vortex ring nozzle assembly 211 can be measured in real time or detected and pre-stored in advance. Real-time measurement provides better accuracy, while detection and pre-stored measurement is more efficient due to direct reading. However, it inevitably suffers from slight offsets due to the number of vortex ring deployments or the extended time. Therefore, detection and pre-stored measurement loses some accuracy. A compromise can be made, which is to measure the angle between the vortex ring and the central axis of the vortex ring nozzle assembly 211 at intervals and then update the initial deflection angle in real time. This embodiment does not impose specific restrictions on this.

[0069] Step S300: Based on the difference between the target deflection angle and the initial deflection angle, control the vortex ring generator 200 to deflect around the central axis so that the difference between the target deflection angle and the actual launch angle after the vortex ring generator 200 deflects is less than or equal to the first preset value.

[0070] It should be noted that using the difference between the target deflection angle and the initial deflection angle as the basis for the deflection of the vortex ring generator 200 around the central axis assumes that the deflection direction between the user and the central axis of the vortex ring nozzle assembly 211 and the deflection direction of the vortex ring relative to the central axis of the vortex ring nozzle assembly 211 are in the same plane. Only by controlling the vortex ring generator 200 to deflect around the central axis of the vortex ring nozzle assembly 211 in the same plane can the direction of vortex ring delivery coincide with the direction of the user.

[0071] In this embodiment, after the controller of the indoor unit of the air conditioner obtains the target deflection angle and the initial deflection angle, it calculates the difference between the target deflection angle and the initial deflection angle to obtain the ideal deflection angle to be achieved. Under theoretical conditions, the vortex ring generator 200 can be directly controlled to deflect around the central axis of the vortex ring nozzle assembly 211 by this ideal deflection angle to achieve vortex ring direction control. However, there is an inevitable error between the deflection under theoretical conditions and the deflection under actual conditions, and it is impossible to achieve 100% coincidence. Therefore, it is necessary to determine the above-mentioned first preset value and define that the difference between the target deflection angle and the actual emission angle after the vortex ring generator 200 deflects is less than or equal to the first preset value, that is, to achieve vortex ring direction control. Since the user and the vortex ring itself have a certain width, setting the first preset value is also in line with the user's actual experience.

[0072] It should also be noted that, given that directly deflecting the vortex ring generator 200 around the central axis of the vortex ring nozzle assembly 211 by the aforementioned ideal deflection angle in one step is prone to error, and if the error is large, it is always difficult to make the difference between the actual launch angles after the vortex ring generator 200 deflection fall into the first preset value, this embodiment also has another implementation method, namely, step deflection, where the angle of each deflection is 1 / N of the ideal deflection angle. After deflecting by 1 / N of the ideal deflection angle once, the difference between the actual launch angles after the vortex ring generator 200 deflection is measured once to see if it falls into the first preset value. This process is gradually advanced until the difference between the actual launch angles after the vortex ring generator 200 deflection falls into the first preset value, thus completing the closed-loop control of the vortex ring direction.

[0073] refer to Figure 5 The diagram shows a flowchart of obtaining the target deflection angle according to an embodiment of the present invention. The vortex ring generator 200 is equipped with a position sensor. Step S100 obtains the target deflection angle, including but not limited to the following steps:

[0074] Step S110: The position sensor detects the relative position information between the user and the vortex ring nozzle assembly 211;

[0075] Step S120: The relative position information is converted into the angle between the user and the central axis of the vortex nozzle assembly 211.

[0076] It should be noted that since the user is a mobile individual, and cannot be assumed to be in a fixed position, it is impossible to directly read from the memory. Therefore, it is necessary to detect the user's real-time position. The vortex ring generator 200 is equipped with a position sensor to detect the user's position in real time. Compared with the sensor being directly installed on the casing of the indoor unit of the air conditioner, the detection is more accurate, reducing unnecessary position changes and data processing, and improving processing efficiency. Specifically, an infrared sensor can be selected as the position sensor. The infrared sensor can detect the user's position in real time, thereby directly obtaining the relative position information between the user and the vortex ring nozzle assembly 211. Of course, the infrared sensor is not the only choice for the position sensor. Various existing position-detectable sensors such as movable cameras, lidar, and pyroelectric sensors can also be used. This embodiment does not limit the choice.

[0077] Since the position sensor collects physical signals, the physical signals need to be converted from analog to digital by an analog-to-digital converter to generate digital signals. Then, the angle between the user and the central axis of the vortex nozzle assembly 211 is generated by combining the digital signals with the angle conversion formula. The analog-to-digital converter can be independent or integrated into the controller of the indoor unit of the air conditioner.

[0078] refer to Figure 6 The diagram shows a flowchart of obtaining the initial deflection angle of the vortex ring according to an embodiment of the present invention. Before obtaining the initial deflection angle of the vortex ring, multiple pressure sensors 212 distributed circumferentially are pre-set on the vortex ring nozzle assembly 211, combined with... Figure 3 As shown, taking three pressure sensors 212 as an example, they are evenly distributed inside the vortex ring nozzle assembly 211. The pressure sensors 212 can sense the pressure acting on the vortex ring nozzle assembly 211 when the vortex ring is launched. Step S200 obtains the initial deflection angle of the vortex ring, including:

[0079] In step S210, multiple pressure sensors 212 respectively detect the pressure values ​​at measurement points on different phases of the vortex ring nozzle assembly 211;

[0080] Step S220: Calculate the initial deflection angle based on the pressure values ​​at the measurement points of different phases.

[0081] It is understandable that when the vortex ring is deployed in the same direction as the central axis of the vortex ring nozzle assembly 211, the pressure values ​​detected by multiple pressure sensors 212 at different phases are consistent. Therefore, when the vortex ring deviates from the central axis of the vortex ring nozzle assembly 211, it will inevitably lead to different pressure values ​​detected by the pressure sensors 212. The central axis of the vortex ring deployment direction will deviate towards the direction of lower pressure. Therefore, the difference in pressure values ​​detected by the vortex ring nozzle assembly 211 represents the deflection direction of the vortex ring.

[0082] In this embodiment, taking the application of two pressure sensors 212 as an example, the initial deflection angle is calculated based on the pressure values ​​of measurement points at different phases, including:

[0083] Two pressure values, P1 and P2, are selected from the pressure values ​​measured at different phases.

[0084] Determine the time Δt during which the vortex ring deflects, the nozzle diameter D of the vortex ring nozzle assembly 211, the average air resistance F received by the vortex ring generator 200, the mass m of the vortex ring generator 200, and the moment of inertia I0 of the vortex ring generator 200 about its central axis; based on the torque composition theorem and the law of conservation of kinetic energy, the following formula is derived to calculate the initial deflection angle δ0:

[0085]

[0086] In actual use, the average air resistance F is the reverse force experienced by the vortex ring generator 200 when it rotates within the casing 100. It is related to the rotational speed and cross-section and can be obtained experimentally. The time Δt for the vortex ring to deflect is generally taken as 1 / 10 of the vortex ring period, i.e., 0.1T. The moment of inertia of the vortex ring generator 200 about its central axis is I0 = m * (D / 2). 2 After conversion, the initial deflection angle δ0 is obtained:

[0087]

[0088] It is understandable that the initial deflection angle of the vortex ring is not entirely determined by the pressure, but is jointly determined by several physical parameters of the vortex ring generator 200, such as the deflection time Δt, the nozzle diameter D of the vortex ring nozzle assembly 211, the average air resistance F received by the vortex ring generator 200, the mass m of the vortex ring generator 200, and the moment of inertia I0 of the vortex ring generator 200 about its central axis. These physical parameters of the vortex ring generator 200 are fixed parameters. As can be seen from the above formula, the initial deflection angle δ0 of the vortex ring is positively correlated with the square of the difference between the two pressure values ​​P1 and P2. By collecting the two pressure values ​​P1 and P2, and combining them with the deflection time Δt, the nozzle diameter D of the vortex ring nozzle assembly 211, the average air resistance F received by the vortex ring generator 200, the mass m of the vortex ring generator 200, and the moment of inertia I0 of the vortex ring generator 200 about its central axis, the initial deflection angle of the vortex ring can be calculated.

[0089] refer to Figure 7 The diagram shown is a logical framework diagram of the sampling, diagnostic alarm, and angle calculation process in the initial deflection angle acquisition process of the vortex ring according to an embodiment of the present invention. The logical framework diagram provides a clearer understanding of the complete overview of this embodiment. Figure 3The three pressure sensors 212, which are evenly distributed on the inner side of the vortex ring nozzle assembly 211, are only one implementation of this technical solution. There can be two, four or five pressure sensors 212. They are described as n in the logic framework diagram. They sense the pressure acting on the vortex ring nozzle assembly 211 when the vortex ring is launched and can obtain pressure values ​​such as P1, P2, P3 to Pn. They all belong to a data sampling module for a pressure value.

[0090] In some embodiments of this example, during actual operation, step S200, which involves obtaining the initial deflection angle of the vortex ring, further includes:

[0091] The pressure values ​​of multiple measurement points with different phases are sorted, and the sorted pressure values ​​of the measurement points are compared pairwise.

[0092] When the ratio between the pressure values ​​of any two measuring points is greater than the second preset value, an alarm signal for vortex ring non-forming is output.

[0093] It is understandable that the pressure values ​​from multiple measurement points at different phases are sorted in order of magnitude. Figure 7 If there are 3 sensors, for example, arranged as P1 > P2 > P3, then the pressure values ​​of the sorted measurement points are compared pairwise, that is, divided into three groups: P1 and P2, P1 and P3, P2 and P3, etc. If there are more groups, then the same logic is followed, and the groups are grouped according to the combination method in mathematics.

[0094] It should be noted that when the ratio between the pressure values ​​of any two measuring points is greater than the second preset value, an alarm signal for vortex ring non-forming is output. This is based on the forming conditions of the vortex ring, which depend on the pressure difference between different phases of the vortex ring on the vortex ring nozzle assembly 211 being controlled within a certain range. If the pressure difference exceeds the second preset value, the vortex ring cannot be formed. In this embodiment, the second preset value is 2. The specific second preset value depends on the structural properties of the vortex ring generating device 200 itself. The second preset value is also different for different structural properties. Therefore, the second preset value in this embodiment is not specifically limited.

[0095] In practical implementation, the controller needs to sort the collected pressures P1, P2, and P3 at each measuring point by size, and then make logical condition judgments on the pressure values ​​at each measuring point, for example, P1 > P2 > P3: P1 > 2 * P2, or P1 > 2 * P3, or P2 > 2 * P3.

[0096] When the above conditions are met, it indicates that the pressure distribution in the circumferential direction of nozzle 210 is extremely uneven, and the pressure distribution in a local area is more than twice that of the nozzle. The vortex ring cannot be formed, and an alarm for vortex ring non-forming will be triggered.

[0097] If the conditions are not met, it means that the pressure distribution in the circumferential direction of the nozzle 210 is relatively uniform, and the pressure distribution in the local area is less than twice that of the nozzle. The vortex ring is stably formed, and the next step is to identify the attitude of the vortex ring, that is, to identify the initial deflection angle δ0 between the vortex ring and the central axis of the vortex ring nozzle assembly 211.

[0098] Understandably, if a vortex ring misshapen alarm signal has already been output, there is no need to identify the initial deflection angle δ0 between the vortex ring and the central axis of the vortex ring nozzle assembly 211, and therefore no need to implement vortex ring direction control.

[0099] In some embodiments, step S200, which involves obtaining the initial deflection angle of the vortex ring, further includes:

[0100] The pressure values ​​of multiple measurement points with different phases are sorted, and the sorted pressure values ​​of the measurement points are compared pairwise.

[0101] When the ratio between the pressure values ​​of any two measuring points is less than or equal to the second preset value, the vortex ring generator 200 is controlled to deflect around the central axis according to the difference between the target deflection angle and the initial deflection angle, so that the difference between the target deflection angle and the actual launch angle after the vortex ring generator 200 deflects is less than or equal to the first preset value.

[0102] It is understandable that the pressure values ​​from multiple measurement points at different phases are sorted in order of magnitude. Figure 7 If there are 3 sensors, for example, arranged as P1 > P2 > P3, then the pressure values ​​of the sorted measurement points are compared pairwise, that is, divided into three groups: P1 and P2, P1 and P3, P2 and P3, etc. If there are more groups, then the same logic is followed, and the groups are grouped according to the combination method in mathematics.

[0103] In practical implementation, the controller needs to sort the collected pressures P1, P2, and P3 at each measuring point by size, and then make logical condition judgments on the pressure values ​​at each measuring point, for example, P1 > P2 > P3: P1 > 2 * P2, or P1 > 2 * P3, or P2 > 2 * P3.

[0104] If the conditions are not met, it means that the pressure distribution in the circumferential direction of the nozzle 210 is relatively uniform, and the pressure distribution in the local area is less than twice that of the nozzle. Only when the vortex ring is stably formed can the initial deflection angle δ0 between the vortex ring and the central axis of the vortex ring nozzle assembly 211 be identified.

[0105] In some embodiments, the vortex ring generator 200 is provided with a direction control mechanism. The direction control mechanism acts on the vortex ring generator 200, applying a force to cause the vortex ring generator 200 to deflect around the central axis of the vortex ring nozzle assembly 211. Based on the difference between the target deflection angle and the initial deflection angle, the vortex ring generator 200 is controlled to deflect around the central axis so that the difference between the target deflection angle and the actual launch angle after deflection is less than or equal to a first preset value, including but not limited to the following steps:

[0106] A deflection angle is determined based on the difference between the target deflection angle and the initial deflection angle;

[0107] The vortex ring generator 200 is driven by a directional control mechanism to rotate around the central axis of the vortex ring nozzle assembly 211 by a deflection angle.

[0108] When the difference between the target deflection angle and the actual launch angle after the vortex ring generator 200 deflection is less than or equal to the first preset value, the vortex ring direction control is completed.

[0109] It should be noted that the directional control mechanism can employ vector jet tubes, and the number of vector jet tubes can be consistent with the number of pressure sensors 212, with corresponding positions. This facilitates precise force application based on the differences in pressure values ​​at different phase measurement points, causing the vortex ring generator 200 to rotate around its central axis by a deflection angle. Other force-applying mechanisms can also be used, such as electric actuators or magnetic drive mechanisms. Any force-applying mechanism capable of deflecting the vortex ring generator 200 is applicable to this technical solution; therefore, this embodiment does not specifically limit the directional control mechanism.

[0110] In this embodiment, the deflection angle can be directly calculated by the controller of the indoor unit of the air conditioner. That is, the deflection angle to be achieved is calculated by the difference between the target deflection angle and the initial deflection angle. Under theoretical conditions, the vortex ring generator 200 can be directly controlled to deflect around the central axis of the vortex ring nozzle assembly 211 by this deflection angle to achieve vortex ring direction control. However, there is an inevitable error between the deflection under theoretical conditions and the deflection under actual conditions, and it is impossible to achieve 100% coincidence. Therefore, it is necessary to determine the above-mentioned first preset value and define that the difference between the target deflection angle and the actual emission angle after the deflection of the vortex ring generator 200 is less than or equal to the first preset value, that is, to achieve vortex ring direction control. Since the user and the vortex ring itself have a certain width, setting the first preset value is also in line with the user's actual experience.

[0111] In some embodiments, the vortex ring generator 200 is provided with a direction control mechanism. The direction control mechanism acts on the vortex ring generator 200, applying a force to cause the vortex ring generator 200 to deflect around the central axis of the vortex ring nozzle assembly 211. Based on the difference between the target deflection angle and the initial deflection angle, the vortex ring generator 200 is controlled to deflect around the central axis so that the difference between the target deflection angle and the actual launch angle after deflection is less than or equal to a first preset value, including but not limited to the following steps:

[0112] The deflection angle is determined based on the difference between the target deflection angle and the initial deflection angle.

[0113] The vortex ring generator 200 is driven by a directional control mechanism to rotate around the central axis of the vortex ring nozzle assembly 211 by a deflection angle.

[0114] When the difference between the target deflection angle and the actual launch angle after the vortex ring generator 200 deflects is greater than the first preset value, the vortex ring generator 200 is driven to rotate around the central axis by the direction control mechanism to deflect the target deflection angle until the difference between the target deflection angle and the actual launch angle after the vortex ring generator 200 deflects is less than or equal to the first preset value, thus completing the vortex ring direction control.

[0115] It should be noted that the directional control mechanism can employ vector jet tubes, and the number of vector jet tubes can be consistent with the number of pressure sensors 212, with corresponding positions. This facilitates precise force application based on the differences in pressure values ​​at different phase measurement points, causing the vortex ring generator 200 to rotate around its central axis by a deflection angle. Other force-applying mechanisms can also be used, such as electric actuators or magnetic drive mechanisms. Any force-applying mechanism capable of deflecting the vortex ring generator 200 is applicable to this technical solution; therefore, this embodiment does not specifically limit the directional control mechanism.

[0116] It should also be noted that, given that directly deflecting the vortex ring generator 200 around the central axis of the vortex ring nozzle assembly 211 by the aforementioned ideal deflection angle in one step is prone to error, and if the error is large, it is always difficult to make the difference between the actual launch angles after the vortex ring generator 200 deflection fall into the first preset value, this embodiment also has another implementation method, namely, step deflection, where the angle of each deflection is 1 / N of the ideal deflection angle. After deflecting by 1 / N of the ideal deflection angle once, the difference between the actual launch angles after the vortex ring generator 200 deflection is measured once to see if it falls into the first preset value. This process is gradually advanced until the difference between the actual launch angles after the vortex ring generator 200 deflection falls into the first preset value, thus completing the closed-loop control of the vortex ring direction.

[0117] In some embodiments, the actual emission angle of the vortex ring generator 200 after deflection is equal to the vortex ring emission angle before deflection plus the measured deflection angle Δθ.

[0118] It should be noted that the actual emission angle after the vortex ring generator 200 deflects is only equal to the initial deflection angle of the vortex ring plus the deflection angle Δθ after the first deflection. Subsequent actual emission angles after the vortex ring generator 200 deflects are equal to the emission angle of the vortex ring before deflection plus the deflection angle Δθ. More precisely, the actual emission angle after the vortex ring generator 200 deflects is equal to the emission angle of the vortex ring before deflection plus the measured deflection angle Δθ. This is because, after the rotation with a deflection angle Δθ, due to mechanical tolerances, the measured deflection angle Δθ is more accurate than the set deflection angle Δθ. Therefore, an angle measuring mechanism is needed to measure the deflection angle Δθ. The angle measuring mechanism can utilize existing rotary encoders, tilt sensors, etc. This embodiment does not specifically limit the angle measuring mechanism.

[0119] Based on the above description, this embodiment will also use a specific example for illustration, see [link to example]. Figure 8 As shown, the vortex ring direction control method specifically includes the following steps:

[0120] Step S111: Measure the angle between the user and the central axis of the vortex ring nozzle assembly 211 as the target deflection angle δ;

[0121] Step S211: Measure the pressure values ​​of the vortex ring nozzle assembly 211 at different phases to calculate the initial deflection angle δ0 of the vortex ring;

[0122] Step S311: The direction control mechanism drives the vortex ring generator 200 to deflect by a deflection angle Δθ.

[0123] Step S312: Obtain the actual emission angle δ1 of the vortex ring;

[0124] Step S313, compare δ with δ1;

[0125] Step S314: When |δ-δ1|>2, return to step S311 and use the direction control mechanism to drive the vortex ring generator 200 to continue deflecting with a deflection angle Δθ, and implement closed-loop control.

[0126] Step S315: When |δ-δ1|≤2, the vortex ring direction control is completed.

[0127] Through the control steps S111 to S315 described above, a more accurate target deflection angle δ can be obtained first. The initial deflection angle δ0 of the vortex ring is calculated by measuring the pressure values ​​of different phases of the vortex ring nozzle assembly 211. The difference between the vortex ring and the central axis of the vortex ring nozzle assembly 211 can be determined, avoiding the final control error caused by ignoring this difference. The target deflection angle δ is compared with the actual launch angle δ1 of the vortex ring. 2° is taken as the maximum allowable deviation. If the maximum allowable deviation is exceeded, the direction control mechanism needs to be cyclically adjusted to drive the vortex ring generator 200 to continuously deflect with a deflection angle Δθ until |δ-δ1|≤2, at which point the vortex ring direction control is completed.

[0128] In addition, one embodiment of the present invention provides a control device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor and the memory can be connected via a bus or other means.

[0129] Memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory may optionally include memory remotely located relative to the processor, and these remote memories can be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0130] The non-transient software program and instructions required to implement the air conditioner control method of the above embodiments are stored in memory. When executed by a processor, the air conditioner control method of the above embodiments is executed, for example, the method described above. Figure 4 Method steps S100 to S300 in the text Figure 5 Method steps S110 to S120 Figure 6 Method steps S210 to S220, Figure 8 The method steps S111 to S315.

[0131] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0132] Furthermore, one embodiment of the present invention also provides an air conditioner, including the control device as described in the above embodiments. Since the air conditioner employs all the technical solutions of the control device described in the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments.

[0133] Furthermore, one embodiment of the present invention provides a computer-readable storage medium storing computer-executable instructions that are executed by a processor or controller, for example, by a processor in the above-described air conditioner embodiment, causing the processor to execute the vortex direction control method in the above-described embodiment, for example, performing the above-described... Figure 4 Method steps S100 to S300 in the text Figure 5 Method steps S110 to S120 Figure 6 Method steps S210 to S220, Figure 8 The method steps S111 to S315.

[0134] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0135] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A vortex ring direction control method for a vortex ring generator having a vortex ring nozzle assembly, characterized in that, The method includes: Obtain the target deflection angle, which is the angle between the user and the central axis of the vortex ring nozzle assembly; Obtain the initial deflection angle of the vortex ring, which is the angle between the vortex ring and the central axis of the vortex ring nozzle assembly; Based on the difference between the target deflection angle and the initial deflection angle, the vortex ring generator is controlled to deflect around the central axis so that the difference between the target deflection angle and the actual launch angle after the vortex ring generator deflection is less than or equal to a first preset value. The vortex ring nozzle assembly is equipped with multiple pressure sensors distributed circumferentially. The acquisition of the initial deflection angle of the vortex ring includes: The pressure values ​​at measurement points on the vortex ring nozzle assembly at different phases are detected by multiple pressure sensors. The initial deflection angle is calculated based on the pressure values ​​at the measurement points at different phases; The calculation of the initial deflection angle based on the pressure values ​​at the measurement points of different phases includes: Two pressure values, P1 and P2, are selected from the pressure values ​​at the measurement points of the different phases. Determine the time Δt during which the vortex ring deflects, the nozzle diameter D of the vortex ring nozzle assembly, the average air resistance F received by the vortex ring generator, the mass m of the vortex ring generator, and the moment of inertia I0 of the vortex ring generator about the central axis; calculate the initial deflection angle δ0 according to the following formula: 。 2. The vortex ring direction control method according to claim 1, characterized in that, The vortex ring generator is equipped with a position sensor, and the acquisition of the target deflection angle includes: The position sensor detects the relative position information between the user and the vortex ring nozzle assembly; The relative position information is converted into an angle between the user and the central axis of the vortex nozzle assembly.

3. The vortex ring direction control method according to claim 1, characterized in that, The method of obtaining the initial deflection angle of the vortex ring also includes: The pressure values ​​of multiple measurement points with different phases are sorted, and the sorted pressure values ​​of the measurement points are compared pairwise. When the ratio between the pressure values ​​of any two measurement points is greater than the second preset value, an alarm signal for vortex ring non-formation is output.

4. The vortex ring direction control method according to claim 1, characterized in that, The method of obtaining the initial deflection angle of the vortex ring also includes: The pressure values ​​of multiple measurement points with different phases are sorted, and the sorted pressure values ​​of the measurement points are compared pairwise. When the ratio between any two pressure values ​​at the measurement points is less than or equal to a second preset value, the process of controlling the vortex ring generator to deflect around the central axis based on the difference between the target deflection angle and the initial deflection angle is executed, so that the difference between the target deflection angle and the actual emission angle after the vortex ring generator deflection is less than or equal to a first preset value.

5. The vortex ring direction control method according to claim 1, characterized in that, The vortex ring generator is equipped with a direction control mechanism. The step of controlling the vortex ring generator to deflect around the central axis based on the difference between the target deflection angle and the initial deflection angle includes: The deflection angle is determined based on the difference between the target deflection angle and the initial deflection angle; The vortex ring generator is driven to rotate around the central axis by the deflection angle via the direction control mechanism. When the difference between the target deflection angle and the actual launch angle after the vortex ring generator deflection is less than or equal to the first preset value, the vortex ring direction control is completed.

6. The vortex ring direction control method according to claim 1, characterized in that, The vortex ring generator is equipped with a direction control mechanism. The step of controlling the vortex ring generator to deflect around the central axis based on the difference between the target deflection angle and the initial deflection angle includes: The deflection angle is determined based on the difference between the target deflection angle and the initial deflection angle; The vortex ring generator is driven to rotate around the central axis by the deflection angle via the direction control mechanism. When the difference between the target deflection angle and the actual launch angle after the vortex ring generator deflection is greater than the first preset value, the vortex ring generator is driven by the direction control mechanism to rotate around the central axis by the deflection angle until the difference between the target deflection angle and the actual launch angle after the vortex ring generator deflection is less than or equal to the first preset value, thus completing the vortex ring direction control.

7. The vortex ring direction control method according to claim 5 or 6, characterized in that, The actual emission angle of the vortex ring generator after deflection is equal to the emission angle of the vortex ring before deflection plus the measured deflection angle.

8. A control device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the vortex ring direction control method as described in any one of claims 1 to 7.

9. An air conditioner, comprising the control device as described in claim 8.

10. A computer-readable storage medium storing computer-executable instructions, characterized in that, The computer-executable instructions are used to execute the vortex ring direction control method as described in any one of claims 1 to 7.

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