A control method and control system for a dehumidifier for a swimming pool

Abstract

The present invention discloses a control method and control system for a swimming pool dehumidifier. The control method includes detecting indoor and outdoor temperature parameters and humidity parameters; setting a temperature threshold and a humidity threshold; when the outdoor temperature value is lower than the temperature threshold or the outdoor humidity value is higher than the humidity threshold, controlling the fresh air valve of the dehumidifier to close; otherwise, controlling the opening and closing degree of the fresh air valve according to the outdoor temperature value, the outdoor humidity value, the indoor temperature value, and the indoor humidity value, thereby controlling the number of compressor starts and the operating frequency of the fan. In this technical solution, when the outdoor temperature value is lower than the temperature threshold or the outdoor humidity value is higher than the humidity threshold, controlling the fresh air valve of the dehumidifier to close; otherwise, controlling the opening and closing degree of the fresh air valve according to the outdoor temperature value, the outdoor humidity value, the indoor temperature value, and the indoor humidity value, finally controlling the number of compressor starts and the operating frequency of the fan in the dehumidifier according to the opening and closing degree of the fresh air valve, thereby effectively reducing the operating power of the dehumidifier.

Description

Technical Field

[0001] The present invention relates to the field of intelligent control technology, and more particularly to a control method and a control system for a dehumidifier for a swimming pool. Background Art

[0002] Currently, swimming pools are leisure places frequented by the general public. Therefore, in order to ensure that the swimming pool environment can reach a suitable temperature and humidity, the operators will install dehumidifiers in the swimming pools. The number of compressors and the operating frequency of the fans in the installed dehumidifiers need to depend on the area of ​​the venue.

[0003] To comprehensively control the operation of dehumidifiers within swimming pools, a control system is required. Existing dehumidifier control systems employ open-loop control to control the dehumidifier's fresh air valve, compressor, and fan. This control process is not based on actual environmental conditions, resulting in high power consumption during dehumidifier operation. Summary of the Invention

[0004] In order to solve one or more of the above technical problems, an object of the present invention is to provide a control method and a control system for a swimming pool dehumidifier.

[0005] The technical solution adopted by the present invention to solve the problem is:

[0006] A method for controlling a dehumidifier for a swimming pool comprises the following steps:

[0007] Step 100: Start the dehumidifier in the swimming pool and control the fan of the dehumidifier to run at the lowest frequency;

[0008] Step 200, detecting indoor and outdoor temperature parameters and humidity parameters, defining the indoor temperature parameter as an indoor temperature value, defining the indoor humidity parameter as an indoor humidity value, defining the outdoor temperature parameter as an outdoor temperature value, and defining the outdoor humidity parameter as an outdoor humidity value;

[0009] Step 300: Setting a temperature threshold and a humidity threshold;

[0010] Step 400: compare the outdoor temperature value with the temperature threshold, and compare the outdoor humidity value with the humidity threshold. When the outdoor temperature value is lower than the temperature threshold or the outdoor humidity value is higher than the humidity threshold, control the fresh air valve of the dehumidifier to close; otherwise, continue to execute below.

[0011] Step 500: controlling the opening and closing degree of the fresh air valve according to the outdoor temperature value, the outdoor humidity value, the indoor temperature value, and the indoor humidity value;

[0012] Step 600: Control the number of compressor starts and the operating frequency of the fan in the dehumidifier according to the opening and closing degree of the fresh air valve.

[0013] As a further improvement of the above technical solution, step 600 includes the following steps:

[0014] Step 610, setting multiple opening and closing degree intervals;

[0015] Step 620, determining the opening / closing range of the fresh air valve;

[0016] Step 630: Control the number of compressor starts and the operating frequency of the fan in the dehumidifier according to the opening and closing degree range.

[0017] As a further improvement to the above technical solution, three opening and closing intervals are set in step 610, which are defined as a first opening and closing interval, a second opening and closing interval, and a third opening and closing interval. The first opening and closing interval is 90% to 100%, the second opening and closing interval is 50% to 90%, and the third opening and closing interval is 0 to 50%.

[0018] In step 630, when the opening and closing degree range of the fresh air valve is the first opening and closing degree range, the dehumidifier is controlled not to start the compressor, and the operating frequency of the fan is controlled to be 35HZ; when the opening and closing degree range of the fresh air valve is the second opening and closing degree range, the dehumidifier is controlled to start one compressor, and the operating frequency of the fan is controlled to be 40HZ; when the opening and closing degree range of the fresh air valve is the third opening and closing degree range, the dehumidifier is controlled to start all compressors, and the operating frequency of the fan is controlled to be 50HZ.

[0019] As a further improvement of the above technical solution, step 500 includes the following steps:

[0020] Step 510, setting a temperature setting value and a humidity setting value, and setting a temperature deviation value and a humidity deviation value;

[0021] Step 520, calculating a temperature upper limit and a temperature lower limit based on the temperature setting value and the temperature deviation value, and calculating a humidity upper limit and a humidity lower limit based on the humidity setting value and the humidity deviation value;

[0022] Step 530: Establish a coordinate system with the temperature parameter as the horizontal axis and the humidity parameter as the vertical axis;

[0023] Step 540: Marking a temperature and humidity region in the coordinate system according to the temperature upper limit, the temperature lower limit, the humidity upper limit, and the humidity lower limit, and marking a temperature and humidity set point in the coordinate system according to the temperature set value and the humidity set value;

[0024] Step 550: Marking outdoor temperature and humidity points in the coordinate system according to the outdoor temperature value and the outdoor humidity value, marking indoor temperature and humidity points in the coordinate system according to the indoor temperature value and the indoor humidity value, connecting the outdoor temperature and humidity points with the indoor temperature and humidity points to obtain a detection line segment, and marking the midpoint of the detection line segment;

[0025] Step 560: Determine whether the detection line segment intersects the temperature and humidity region using a projection method. If so, control the opening and closing degree of the fresh air valve to 100%. If not, continue the process.

[0026] Step 570: Connect the temperature and humidity set point with the outdoor temperature and humidity point and define the line segment as a first identification line segment; connect the temperature and humidity set point with the indoor temperature and humidity point and define the line segment as a second identification line segment; connect the temperature and humidity set point with the midpoint of the detection line segment and define the line segment as a third identification line segment;

[0027] Step 580, respectively identify the lengths of the first identification line segment, the second identification line segment, and the third identification line segment. When the length of the first identification line segment is the smallest, the opening and closing degree of the fresh air valve is controlled to be 100%. When the length of the second identification line segment is the smallest, the opening and closing degree of the fresh air valve is controlled to be 0%. When the length of the third identification line segment is the smallest, the opening and closing degree of the fresh air valve is controlled to be 50%.

[0028] The present invention also discloses a dehumidifier control system for a swimming pool, comprising:

[0029] An initial startup module is used to start the dehumidifier in the swimming pool and control the dehumidifier fan to run at the lowest frequency;

[0030] A detection module is used to detect indoor and outdoor temperature parameters and humidity parameters, defining the indoor temperature parameter as an indoor temperature value, the indoor humidity parameter as an indoor humidity value, the outdoor temperature parameter as an outdoor temperature value, and the outdoor humidity parameter as an outdoor humidity value;

[0031] Setting module, used to set temperature threshold and humidity threshold;

[0032] a comparison module, configured to compare the outdoor temperature value with the temperature threshold, and to compare the outdoor humidity value with the humidity threshold;

[0033] A first control module is configured to control the fresh air valve of the dehumidifier to close when the outdoor temperature value is lower than the temperature threshold or the outdoor humidity value is higher than the humidity threshold;

[0034] a second control module, configured to control the opening degree of the fresh air valve according to the outdoor temperature value, the outdoor humidity value, the indoor temperature value, and the indoor humidity value when the outdoor temperature value is higher than the temperature threshold, or the outdoor humidity value is lower than the humidity threshold;

[0035] The third control module is used to control the starting number of the compressor and the operating frequency of the fan in the dehumidifier according to the opening and closing degree of the fresh air valve when the outdoor temperature value is higher than the temperature threshold or the outdoor humidity value is lower than the humidity threshold.

[0036] As a further improvement of the above technical solution, the third control module includes:

[0037] A setting unit, used for setting multiple opening and closing degree intervals;

[0038] A judgment unit, used to judge the opening and closing range of the fresh air valve;

[0039] The first control unit is used to control the number of compressor starts and the operating frequency of the fan in the dehumidifier according to the opening and closing degree range.

[0040] As a further improvement of the above technical solution, the setting unit is provided with three opening and closing degree intervals, which are defined as a first opening and closing degree interval, a second opening and closing degree interval, and a third opening and closing degree interval, wherein the first opening and closing degree interval is 90% to 100%, the second opening and closing degree interval is 50% to 90%, and the third opening and closing degree interval is 0 to 50%;

[0041] In the first control unit, when the opening and closing degree range of the fresh air valve is the first opening and closing degree range, the dehumidifier is controlled not to start the compressor, and the operating frequency of the fan is controlled to be 35HZ; when the opening and closing degree range of the fresh air valve is the second opening and closing degree range, the dehumidifier is controlled to start one compressor, and the operating frequency of the fan is controlled to be 40HZ; when the opening and closing degree range of the fresh air valve is the third opening and closing degree range, the dehumidifier is controlled to start all compressors, and the operating frequency of the fan is controlled to be 50HZ.

[0042] As a further improvement of the above technical solution, the second control module includes:

[0043] A setting unit, used to set a temperature setting value and a humidity setting value, and to set a temperature deviation value and a humidity deviation value;

[0044] a calculation unit, configured to calculate a temperature upper limit value and a temperature lower limit value according to the temperature setting value and the temperature deviation value, and to calculate a humidity upper limit value and a humidity lower limit value according to the humidity setting value and the humidity deviation value;

[0045] A coordinate system establishing unit, configured to establish a coordinate system with a temperature parameter as a horizontal axis and a humidity parameter as a vertical axis;

[0046] a first marking unit, configured to mark a temperature and humidity area in the coordinate system according to the temperature upper limit value, the temperature lower limit value, the humidity upper limit value, and the humidity lower limit value, and to mark a temperature and humidity set point in the coordinate system according to the temperature set value and the humidity set value;

[0047] a second marking unit, configured to mark an outdoor temperature and humidity point in the coordinate system according to the outdoor temperature value and the outdoor humidity value, mark an indoor temperature and humidity point in the coordinate system according to the indoor temperature value and the indoor humidity value, connect the outdoor temperature and humidity point and the indoor temperature and humidity point to obtain a detection line segment, and mark the midpoint of the detection line segment;

[0048] a second control unit, configured to determine, by a projection method, whether the detection line segment intersects the temperature and humidity region; and if the detection line segment intersects the temperature and humidity region, controlling the opening and closing degree of the fresh air valve to 100%;

[0049] a connecting unit, connecting the temperature and humidity set point with the outdoor temperature and humidity point and defining the line segment as a first identification line segment, connecting the temperature and humidity set point with the indoor temperature and humidity point and defining the line segment as a second identification line segment, and connecting the temperature and humidity set point with the midpoint of the detection line segment and defining the line segment as a third identification line segment;

[0050] The third control unit is used to identify the lengths of the first identification line segment, the second identification line segment and the third identification line segment respectively when the detection line segment does not intersect with the temperature and humidity area; when the length of the first identification line segment is the smallest, the opening and closing degree of the fresh air valve is controlled to be 100%; when the length of the second identification line segment is the smallest, the opening and closing degree of the fresh air valve is controlled to be 0%; and when the length of the third identification line segment is the smallest, the opening and closing degree of the fresh air valve is controlled to be 50%.

[0051] The beneficial effects of the present invention are as follows: after the dehumidifier in the present technical solution is started, the fan of the dehumidifier is first controlled to run at the lowest frequency. Then, when the outdoor temperature value is lower than the temperature threshold or the outdoor humidity value is higher than the humidity threshold, the fresh air valve of the dehumidifier is controlled to close. Otherwise, the opening and closing degree of the fresh air valve is controlled according to the outdoor temperature value, outdoor humidity value, indoor temperature value and indoor humidity value. Finally, the starting number of the compressor in the dehumidifier and the operating frequency of the fan are controlled according to the opening and closing degree of the fresh air valve, thereby effectively reducing the operating power of the dehumidifier, and being able to more effectively control the temperature and humidity parameters of the place where the dehumidifier is located, thereby improving the comfort of people in the place. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0053] Figure 1 It is a flow chart of the control method of the present invention. DETAILED DESCRIPTION

[0054] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be understood as a limitation on the scope of protection of the present invention.

[0055] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0056] In the description of the present invention, the meaning of "several" is one or more, the meaning of "many" is more than two, and the meanings of "greater than", "less than", "exceed" and "exceed" are not inclusive of the number itself, while the meanings of "above", "below", "within" and "include" are inclusive of the number itself. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features. In the description of the present invention, unless otherwise clearly defined, the terms "set", "install", "connect" and "connect" should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0057] Reference Figure 1 The present application discloses a method for controlling a swimming pool dehumidifier, a first embodiment of which comprises the following steps:

[0058] Step 100: Start the dehumidifier in the swimming pool and control the fan of the dehumidifier to run at the lowest frequency;

[0059] Step 200, detecting indoor and outdoor temperature parameters and humidity parameters, defining the indoor temperature parameter as an indoor temperature value, defining the indoor humidity parameter as an indoor humidity value, defining the outdoor temperature parameter as an outdoor temperature value, and defining the outdoor humidity parameter as an outdoor humidity value;

[0060] Step 300: Setting a temperature threshold and a humidity threshold;

[0061] Step 400: compare the outdoor temperature value with the temperature threshold, and compare the outdoor humidity value with the humidity threshold. When the outdoor temperature value is lower than the temperature threshold or the outdoor humidity value is higher than the humidity threshold, control the fresh air valve of the dehumidifier to close; otherwise, continue to execute below.

[0062] Step 500: controlling the opening and closing degree of the fresh air valve according to the outdoor temperature value, the outdoor humidity value, the indoor temperature value, and the indoor humidity value;

[0063] Step 600: Control the number of compressor starts and the operating frequency of the fan in the dehumidifier according to the opening and closing degree of the fresh air valve.

[0064] Specifically, in this embodiment, after the dehumidifier is started, the dehumidifier fan is first controlled to run at the lowest frequency. Then, when the outdoor temperature value is lower than the temperature threshold or the outdoor humidity value is higher than the humidity threshold, the fresh air valve of the dehumidifier is controlled to close. Otherwise, the opening and closing degree of the fresh air valve is controlled according to the outdoor temperature value, outdoor humidity value, indoor temperature value and indoor humidity value. Finally, the starting number of the compressor in the dehumidifier and the operating frequency of the fan are controlled according to the opening and closing degree of the fresh air valve, thereby effectively reducing the operating power of the dehumidifier, and being able to more effectively control the temperature and humidity parameters of the place where the dehumidifier is located, thereby improving the comfort of people in the place.

[0065] As a further preferred implementation, in this embodiment, step 600 includes the following steps:

[0066] Step 610, setting multiple opening and closing degree intervals;

[0067] Step 620, determining the opening / closing range of the fresh air valve;

[0068] Step 630: Control the number of compressor starts and the operating frequency of the fan in the dehumidifier according to the opening and closing degree range.

[0069] As a further preferred embodiment, in this embodiment, three opening degree intervals are set in step 610, which are defined as a first opening degree interval, a second opening degree interval, and a third opening degree interval. The first opening degree interval is 90% to 100%, the second opening degree interval is 50% to 90%, and the third opening degree interval is 0 to 50%.

[0070] In step 630, when the opening and closing degree range of the fresh air valve is the first opening and closing degree range, the dehumidifier is controlled not to start the compressor, and the operating frequency of the fan is controlled to be 35HZ; when the opening and closing degree range of the fresh air valve is the second opening and closing degree range, the dehumidifier is controlled to start one compressor, and the operating frequency of the fan is controlled to be 40HZ; when the opening and closing degree range of the fresh air valve is the third opening and closing degree range, the dehumidifier is controlled to start all compressors, and the operating frequency of the fan is controlled to be 50HZ.

[0071] As a further preferred implementation, in this embodiment, step 500 includes the following steps:

[0072] Step 510, setting a temperature setting value and a humidity setting value, and setting a temperature deviation value and a humidity deviation value;

[0073] Step 520: Calculate a temperature upper limit and a temperature lower limit based on the temperature setting value and the temperature deviation value, wherein the temperature upper limit is the sum of the temperature setting value and the temperature deviation value, and the temperature lower limit is the difference between the temperature setting value and the temperature deviation value; and calculate a humidity upper limit and a humidity lower limit based on the humidity setting value and the humidity deviation value, wherein the humidity upper limit is the sum of the humidity setting value and the humidity deviation value, and the humidity lower limit is the difference between the humidity setting value and the humidity deviation value;

[0074] Step 530: Establish a coordinate system with the temperature parameter as the horizontal axis and the humidity parameter as the vertical axis;

[0075] Step 540: Marking a temperature and humidity region in the coordinate system according to the temperature upper limit, the temperature lower limit, the humidity upper limit, and the humidity lower limit, and marking a temperature and humidity set point in the coordinate system according to the temperature set value and the humidity set value;

[0076] Step 550: Marking outdoor temperature and humidity points in the coordinate system according to the outdoor temperature value and the outdoor humidity value, marking indoor temperature and humidity points in the coordinate system according to the indoor temperature value and the indoor humidity value, connecting the outdoor temperature and humidity points with the indoor temperature and humidity points to obtain a detection line segment, and marking the midpoint of the detection line segment;

[0077] Step 560: Determine whether the detection line segment intersects the temperature and humidity region using a projection method. If so, control the opening and closing degree of the fresh air valve to 100%. If not, continue the process.

[0078] Step 570: Connect the temperature and humidity set point with the outdoor temperature and humidity point and define the line segment as a first identification line segment; connect the temperature and humidity set point with the indoor temperature and humidity point and define the line segment as a second identification line segment; connect the temperature and humidity set point with the midpoint of the detection line segment and define the line segment as a third identification line segment;

[0079] Step 580, respectively identify the lengths of the first identification line segment, the second identification line segment, and the third identification line segment. When the length of the first identification line segment is the smallest, the opening and closing degree of the fresh air valve is controlled to be 100%. When the length of the second identification line segment is the smallest, the opening and closing degree of the fresh air valve is controlled to be 0%. When the length of the third identification line segment is the smallest, the opening and closing degree of the fresh air valve is controlled to be 50%.

[0080] Specifically, step 560 in this embodiment uses a projection method to determine whether the detection line segment intersects with the temperature and humidity area. The specific process is as follows: make the upper and lower side extension lines of the temperature and humidity area. If the detection line segment intersects with the upper and lower side extension lines of the temperature and humidity area, take the intersection point; otherwise, take the endpoint of the detection line segment, project the intersection point or endpoint onto the horizontal axis of the coordinate system to obtain a first projection line segment, and project the temperature and humidity area onto the horizontal axis of the coordinate system to obtain a second projection line segment. If there is an overlapping part between the first projection line segment and the second projection line segment, it means that the detection line segment and the temperature and humidity area are intersected.

[0081] This application also discloses a swimming pool dehumidifier control system, a first embodiment of which includes:

[0082] An initial startup module is used to start the dehumidifier in the swimming pool and control the dehumidifier fan to run at the lowest frequency;

[0083] A detection module is used to detect indoor and outdoor temperature parameters and humidity parameters, defining the indoor temperature parameter as an indoor temperature value, the indoor humidity parameter as an indoor humidity value, the outdoor temperature parameter as an outdoor temperature value, and the outdoor humidity parameter as an outdoor humidity value;

[0084] Setting module, used to set temperature threshold and humidity threshold;

[0085] a comparison module, configured to compare the outdoor temperature value with the temperature threshold, and to compare the outdoor humidity value with the humidity threshold;

[0086] A first control module is configured to control the fresh air valve of the dehumidifier to close when the outdoor temperature value is lower than the temperature threshold or the outdoor humidity value is higher than the humidity threshold;

[0087] a second control module, configured to control the opening degree of the fresh air valve according to the outdoor temperature value, the outdoor humidity value, the indoor temperature value, and the indoor humidity value when the outdoor temperature value is higher than the temperature threshold, or the outdoor humidity value is lower than the humidity threshold;

[0088] The third control module is used to control the starting number of the compressor and the operating frequency of the fan in the dehumidifier according to the opening and closing degree of the fresh air valve when the outdoor temperature value is higher than the temperature threshold or the outdoor humidity value is lower than the humidity threshold.

[0089] As a further preferred implementation, in this embodiment, the third control module includes:

[0090] A setting unit, used for setting multiple opening and closing degree intervals;

[0091] A judgment unit, used to judge the opening and closing range of the fresh air valve;

[0092] The first control unit is used to control the number of compressor starts and the operating frequency of the fan in the dehumidifier according to the opening and closing degree range.

[0093] As a further preferred embodiment, in this embodiment, the setting unit is provided with three opening and closing degree intervals, which are defined as a first opening and closing degree interval, a second opening and closing degree interval, and a third opening and closing degree interval, wherein the first opening and closing degree interval is 90% to 100%, the second opening and closing degree interval is 50% to 90%, and the third opening and closing degree interval is 0 to 50%;

[0094] In the first control unit, when the opening and closing degree range of the fresh air valve is the first opening and closing degree range, the dehumidifier is controlled not to start the compressor, and the operating frequency of the fan is controlled to be 35HZ; when the opening and closing degree range of the fresh air valve is the second opening and closing degree range, the dehumidifier is controlled to start one compressor, and the operating frequency of the fan is controlled to be 40HZ; when the opening and closing degree range of the fresh air valve is the third opening and closing degree range, the dehumidifier is controlled to start all compressors, and the operating frequency of the fan is controlled to be 50HZ.

[0095] As a further preferred implementation, in this embodiment, the second control module includes:

[0096] A setting unit, used to set a temperature setting value and a humidity setting value, and to set a temperature deviation value and a humidity deviation value;

[0097] a calculation unit, configured to calculate a temperature upper limit value and a temperature lower limit value according to the temperature setting value and the temperature deviation value, and to calculate a humidity upper limit value and a humidity lower limit value according to the humidity setting value and the humidity deviation value;

[0098] A coordinate system establishing unit, configured to establish a coordinate system with a temperature parameter as a horizontal axis and a humidity parameter as a vertical axis;

[0099] a first marking unit, configured to mark a temperature and humidity area in the coordinate system according to the temperature upper limit value, the temperature lower limit value, the humidity upper limit value, and the humidity lower limit value, and to mark a temperature and humidity set point in the coordinate system according to the temperature set value and the humidity set value;

[0100] a second marking unit, configured to mark an outdoor temperature and humidity point in the coordinate system according to the outdoor temperature value and the outdoor humidity value, mark an indoor temperature and humidity point in the coordinate system according to the indoor temperature value and the indoor humidity value, connect the outdoor temperature and humidity point and the indoor temperature and humidity point to obtain a detection line segment, and mark the midpoint of the detection line segment;

[0101] a second control unit, configured to determine, by a projection method, whether the detection line segment intersects the temperature and humidity region; and if the detection line segment intersects the temperature and humidity region, controlling the opening and closing degree of the fresh air valve to 100%;

[0102] a connecting unit, connecting the temperature and humidity set point with the outdoor temperature and humidity point and defining the line segment as a first identification line segment, connecting the temperature and humidity set point with the indoor temperature and humidity point and defining the line segment as a second identification line segment, and connecting the temperature and humidity set point with the midpoint of the detection line segment and defining the line segment as a third identification line segment;

[0103] The third control unit is used to identify the lengths of the first identification line segment, the second identification line segment and the third identification line segment respectively when the detection line segment does not intersect with the temperature and humidity area; when the length of the first identification line segment is the smallest, the opening and closing degree of the fresh air valve is controlled to be 100%; when the length of the second identification line segment is the smallest, the opening and closing degree of the fresh air valve is controlled to be 0%; and when the length of the third identification line segment is the smallest, the opening and closing degree of the fresh air valve is controlled to be 50%.

[0104] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A method for controlling a dehumidifier for a swimming pool, characterized in that: The following steps are involved: Step 100: Start the dehumidifier in the swimming pool and control the fan of the dehumidifier to run at the lowest frequency; Step 200, detecting indoor and outdoor temperature parameters and humidity parameters, defining the indoor temperature parameter as an indoor temperature value, defining the indoor humidity parameter as an indoor humidity value, defining the outdoor temperature parameter as an outdoor temperature value, and defining the outdoor humidity parameter as an outdoor humidity value; Step 300: Setting a temperature threshold and a humidity threshold; Step 400: compare the outdoor temperature value with the temperature threshold, and compare the outdoor humidity value with the humidity threshold. When the outdoor temperature value is lower than the temperature threshold or the outdoor humidity value is higher than the humidity threshold, control the fresh air valve of the dehumidifier to close; otherwise, continue to execute below. Step 500: controlling the opening and closing degree of the fresh air valve according to the outdoor temperature value, the outdoor humidity value, the indoor temperature value, and the indoor humidity value; Step 600, controlling the number of compressor starts and the operating frequency of the fan in the dehumidifier according to the opening and closing degree of the fresh air valve; The step 500 includes the following steps: Step 510, setting a temperature setting value and a humidity setting value, and setting a temperature deviation value and a humidity deviation value; Step 520, calculating a temperature upper limit and a temperature lower limit based on the temperature setting value and the temperature deviation value, and calculating a humidity upper limit and a humidity lower limit based on the humidity setting value and the humidity deviation value; Step 530: Establish a coordinate system with the temperature parameter as the horizontal axis and the humidity parameter as the vertical axis; Step 540: Marking a temperature and humidity region in the coordinate system according to the temperature upper limit, the temperature lower limit, the humidity upper limit, and the humidity lower limit, and marking a temperature and humidity set point in the coordinate system according to the temperature set value and the humidity set value; Step 550: Marking outdoor temperature and humidity points in the coordinate system according to the outdoor temperature value and the outdoor humidity value, marking indoor temperature and humidity points in the coordinate system according to the indoor temperature value and the indoor humidity value, connecting the outdoor temperature and humidity points with the indoor temperature and humidity points to obtain a detection line segment, and marking the midpoint of the detection line segment; Step 560: Determine whether the detection line segment intersects the temperature and humidity region using a projection method. If so, control the opening and closing degree of the fresh air valve to 100%. If not, continue the process. Step 570: Connect the temperature and humidity set point with the outdoor temperature and humidity point and define the connecting line as a first identification line segment, connect the temperature and humidity set point with the indoor temperature and humidity point and define the connecting line as a second identification line segment, and connect the temperature and humidity set point with the midpoint of the detection line segment and define the connecting line as a third identification line segment; Step 580, respectively identify the lengths of the first identification line segment, the second identification line segment, and the third identification line segment. When the length of the first identification line segment is the smallest, the opening and closing degree of the fresh air valve is controlled to be 100%. When the length of the second identification line segment is the smallest, the opening and closing degree of the fresh air valve is controlled to be 0%. When the length of the third identification line segment is the smallest, the opening and closing degree of the fresh air valve is controlled to be 50%.

2. A swimming pool dehumidifier control method according to claim 1, characterized in that: The step 600 includes the following steps: Step 610, setting multiple opening and closing degree intervals; Step 620, determining the opening / closing range of the fresh air valve; Step 630: Control the number of compressor starts and the operating frequency of the fan in the dehumidifier according to the opening and closing degree range.

3. A swimming pool dehumidifier control method according to claim 2, characterized in that: In step 610, three opening and closing intervals are set, namely, a first opening and closing interval, a second opening and closing interval, and a third opening and closing interval. The first opening and closing interval is 90% to 100%, the second opening and closing interval is 50% to 90%, and the third opening and closing interval is 0 to 50%. In step 630, when the opening and closing degree range of the fresh air valve is the first opening and closing degree range, the dehumidifier is controlled not to start the compressor, and the operating frequency of the fan is controlled to be 35HZ; when the opening and closing degree range of the fresh air valve is the second opening and closing degree range, the dehumidifier is controlled to start one compressor, and the operating frequency of the fan is controlled to be 40HZ; when the opening and closing degree range of the fresh air valve is the third opening and closing degree range, the dehumidifier is controlled to start all compressors, and the operating frequency of the fan is controlled to be 50HZ.

4. A dehumidifier control system for a swimming pool, characterized in that: include: An initial startup module is used to start the dehumidifier in the swimming pool and control the dehumidifier fan to run at the lowest frequency; A detection module is used to detect indoor and outdoor temperature parameters and humidity parameters, defining the indoor temperature parameter as an indoor temperature value, the indoor humidity parameter as an indoor humidity value, the outdoor temperature parameter as an outdoor temperature value, and the outdoor humidity parameter as an outdoor humidity value; Setting module, used to set temperature threshold and humidity threshold; a comparison module, configured to compare the outdoor temperature value with the temperature threshold, and to compare the outdoor humidity value with the humidity threshold; A first control module is configured to control the fresh air valve of the dehumidifier to close when the outdoor temperature value is lower than the temperature threshold or the outdoor humidity value is higher than the humidity threshold; a second control module, configured to control the opening degree of the fresh air valve according to the outdoor temperature value, the outdoor humidity value, the indoor temperature value, and the indoor humidity value when the outdoor temperature value is higher than the temperature threshold, or the outdoor humidity value is lower than the humidity threshold; a third control module, configured to control the number of compressor starts and the operating frequency of the fan in the dehumidifier according to the opening and closing degree of the fresh air valve when the outdoor temperature value is higher than the temperature threshold or the outdoor humidity value is lower than the humidity threshold; The second control module includes: A setting unit, used to set a temperature setting value and a humidity setting value, and to set a temperature deviation value and a humidity deviation value; a calculation unit, configured to calculate a temperature upper limit value and a temperature lower limit value according to the temperature setting value and the temperature deviation value, and to calculate a humidity upper limit value and a humidity lower limit value according to the humidity setting value and the humidity deviation value; A coordinate system establishing unit, configured to establish a coordinate system with a temperature parameter as a horizontal axis and a humidity parameter as a vertical axis; a first marking unit, configured to mark a temperature and humidity area in the coordinate system according to the temperature upper limit value, the temperature lower limit value, the humidity upper limit value, and the humidity lower limit value, and to mark a temperature and humidity set point in the coordinate system according to the temperature set value and the humidity set value; a second marking unit, configured to mark an outdoor temperature and humidity point in the coordinate system according to the outdoor temperature value and the outdoor humidity value, mark an indoor temperature and humidity point in the coordinate system according to the indoor temperature value and the indoor humidity value, connect the outdoor temperature and humidity point and the indoor temperature and humidity point to obtain a detection line segment, and mark the midpoint of the detection line segment; a second control unit, configured to determine, by a projection method, whether the detection line segment intersects the temperature and humidity region; and if the detection line segment intersects the temperature and humidity region, controlling the opening and closing degree of the fresh air valve to 100%; a connecting unit, connecting the temperature and humidity set point with the outdoor temperature and humidity point and defining the connecting line as a first identification line segment, connecting the temperature and humidity set point with the indoor temperature and humidity point and defining the connecting line as a second identification line segment, and connecting the temperature and humidity set point with the midpoint of the detection line segment and defining the connecting line as a third identification line segment; The third control unit is used to identify the lengths of the first identification line segment, the second identification line segment and the third identification line segment respectively when the detection line segment does not intersect with the temperature and humidity area; when the length of the first identification line segment is the smallest, the opening and closing degree of the fresh air valve is controlled to be 100%; when the length of the second identification line segment is the smallest, the opening and closing degree of the fresh air valve is controlled to be 0%; and when the length of the third identification line segment is the smallest, the opening and closing degree of the fresh air valve is controlled to be 50%.

5. A swimming pool dehumidifier control system according to claim 4, characterized in that: The third control module includes: A setting unit, used for setting multiple opening and closing degree intervals; A judgment unit, used to judge the opening and closing range of the fresh air valve; The first control unit is used to control the number of compressor starts and the operating frequency of the fan in the dehumidifier according to the opening and closing degree range.

6. A swimming pool dehumidifier control system according to claim 5, characterized in that: The setting unit is provided with three opening and closing intervals, which are defined as a first opening and closing interval, a second opening and closing interval, and a third opening and closing interval, wherein the first opening and closing interval is 90% to 100%, the second opening and closing interval is 50% to 90%, and the third opening and closing interval is 0 to 50%; In the first control unit, when the opening and closing degree range of the fresh air valve is the first opening and closing degree range, the dehumidifier is controlled not to start the compressor, and the operating frequency of the fan is controlled to be 35HZ; when the opening and closing degree range of the fresh air valve is the second opening and closing degree range, the dehumidifier is controlled to start one compressor, and the operating frequency of the fan is controlled to be 40HZ; when the opening and closing degree range of the fresh air valve is the third opening and closing degree range, the dehumidifier is controlled to start all compressors, and the operating frequency of the fan is controlled to be 50HZ.

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