CN114251297B - Intelligent drainage-free device speed regulation and level stabilization method and intelligent drainage-free device - Google Patents
Intelligent drainage-free device speed regulation and level stabilization method and intelligent drainage-free device Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
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Abstract
The invention relates to the technical field of the Internet of things, in particular to an intelligent water-free device speed regulation and level stabilization method and an intelligent water-free device, wherein the intelligent water-free device speed regulation and level stabilization method comprises the following steps: acquiring a numerical value of a wind speed sensor and a water level sensor; determining a fan speed regulation mode according to the values of the wind speed sensor and the water level sensor, wherein the fan speed regulation mode comprises a high-frequency speed regulation mode and a low-frequency speed regulation mode; adjusting the rotating speed of the fan according to the determined fan speed regulation mode; acquiring the level change of 485 buses before and after speed regulation and judging whether an interference level exists or not; and if the interference level exists, performing interference level processing. The method provided by the invention determines the speed regulation frequency of the motor rotating speed through the wind speed and the water level, and further performs level stabilization after rotating speed regulation, thereby ensuring the stability of the level before and after speed regulation.
Description
Technical Field
The invention relates to the technical field of the Internet of things, in particular to an intelligent drainage-free device speed regulation and level stabilization method and an intelligent drainage-free device.
Background
In the field of temperature control, self-cooling, water-drainage-free dehumidifying apparatuses have been rapidly developed in recent years in addition to conventional air conditioners, warmers, heaters, and the like.
In the use process of the drainage-free device, the rotating speed of the fan needs to be adjusted. The prior art generally adjusts the current or voltage of the fan to achieve speed regulation.
The fan adjusting method of the drainage-free device provided by the prior art is single, the traditional gear adjusting applicability is poor, and meanwhile, the problem of level interference caused by current or voltage fluctuation cannot be solved.
Disclosure of Invention
Aiming at the problems in the background technology, the embodiment of the invention provides an intelligent drainage-free device speed regulation and level stabilization method for solving at least one of the problems.
The embodiment of the invention is realized in such a way that the speed regulation and the level stabilization of the intelligent drainage-free device comprise:
Acquiring a numerical value of a wind speed sensor and a water level sensor;
determining a fan speed regulation mode according to the values of the wind speed sensor and the water level sensor, wherein the fan speed regulation mode comprises a high-frequency speed regulation mode and a low-frequency speed regulation mode;
Adjusting the rotating speed of the fan according to the determined fan speed regulation mode;
Acquiring the level change of 485 buses before and after speed regulation and judging whether an interference level exists or not;
And if the interference level exists, performing interference level processing.
The invention also provides an intelligent drainage-free device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the speed regulation and level stabilization method of the intelligent drainage-free device is executed by the processor when the computer program is executed.
According to the method provided by the invention, the speed regulation frequency of the motor speed is determined through the wind speed and the water level, and when the speed is regulated, the amplitude of each speed regulation is smaller according to the dynamic speed regulation frequency, and the difference value of the two speed regulation is smoother, so that the voltage/current fluctuation during speed regulation is reduced; after the speed regulation of the rotating speed is carried out, the level is further stabilized, and the stability of the level before and after the speed regulation is ensured.
Drawings
FIG. 1 is a flow chart of a method for speed regulation and level stabilization of an intelligent drainage-free device according to an embodiment of the present invention;
fig. 2 is a block diagram showing an internal structure of the intelligent drainage-free device according to an embodiment.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that the terms "first," "second," and the like, as used herein, may be used to describe various elements, but these elements are not limited by these terms unless otherwise specified. These terms are only used to distinguish one element from another element. For example, a first xx script may be referred to as a second xx script, and similarly, a second xx script may be referred to as a first xx script, without departing from the scope of this disclosure.
As shown in fig. 1, in one embodiment, an intelligent drainage-free device speed regulation and level stabilization method is provided, which specifically includes the following steps:
Acquiring a numerical value of a wind speed sensor and a water level sensor;
determining a fan speed regulation mode according to the values of the wind speed sensor and the water level sensor, wherein the fan speed regulation mode comprises a high-frequency speed regulation mode and a low-frequency speed regulation mode;
Adjusting the rotating speed of the fan according to the determined fan speed regulation mode;
Acquiring the level change of 485 buses before and after speed regulation and judging whether an interference level exists or not;
And if the interference level exists, performing interference level processing.
In this embodiment, the wind speed sensor and the water level sensor may be all implemented by various sensors provided in the prior art, and the wind speed sensor and the water level sensor in the present invention are used for detecting wind speed and water level, and are not limited to specific types and models of the sensors.
In this embodiment, the speed of the fan needs to be adjusted according to the detected wind speed and the current water level, specifically, when the wind speed is high and the water level is high, the speed of the fan needs to be adjusted high, and when the wind speed is low and the water level is low, the speed of the fan needs to be adjusted low. In the process, the drainage-free device is used as an Internet of things device, needs to be communicated with a client or other Internet of things devices, speed regulation is realized by changing voltage or current, and level fluctuation in a system is easy to cause, and the fluctuation has direct influence of an electric signal in the system and unstable level caused by magnetic field change due to voltage or current change. The invention also includes level de-interference after speed regulation.
In the application, the level interference of the communication bus is mainly considered, so that the interference of the 485 bus needs to be positioned and stabilized.
According to the method provided by the invention, the speed regulation frequency of the motor speed is determined through the wind speed and the water level, and when the speed is regulated, the amplitude of each speed regulation is smaller according to the dynamic speed regulation frequency, and the difference value of the two speed regulation is smoother, so that the voltage/current fluctuation during speed regulation is reduced; after the speed regulation of the rotating speed is carried out, the level is further stabilized, and the stability of the level before and after the speed regulation is ensured.
In one embodiment, the determining the fan speed regulation mode according to the values of the wind speed sensor and the water level sensor includes:
Judging whether the output voltage of the wind speed sensor is more than or equal to 10V and whether the numerical value of the water level sensor is more than or equal to 1/2;
if yes, setting a fan adjusting mode as a high-frequency speed regulating mode;
Judging whether the output voltage of the wind speed sensor is smaller than 10V and the numerical value of the water level sensor is smaller than 1/2;
if yes, the fan adjusting mode is set to be a low-frequency speed adjusting mode.
In the embodiment, the output of the wind speed sensor is generally in the range of 0V-15V, and when the current output is greater than or equal to 10V, the wind speed is higher at the moment; meanwhile, when the numerical ratio of the water level sensor is more than or equal to 1/2, the water level is higher at the moment, and the speed of the fan needs to be reduced. Conversely, when the current output is below 10V, this indicates that the wind speed at this time is low; meanwhile, when the numerical value of the water level sensor is smaller than 1/2, the water level is lower, and the potential of the device can be fully utilized by improving the speed of the fan. It is understood that the numerical duty ratio of the water level sensor herein refers to the ratio of the current detection value to the maximum water level.
In one embodiment, the adjusting the rotation speed of the fan according to the determined fan speed regulation mode includes:
for the high frequency adjustment mode, the fan speed is determined by:
n＝n1-nf1
for the low frequency adjustment mode, the fan speed is determined by:
n＝n1+nf2
Wherein: n is the adjusted rotation speed; n 1 is the rotation speed before adjustment; n f1、nf2 is the speed regulation difference in the high-frequency speed regulation mode and the low-frequency speed regulation mode respectively, n f1＝n0(1+f1),nf2＝n0(1+f2),n0 is the set speed difference, and f 1、f2 is the follow-up frequency in the high-frequency speed regulation mode and the low-frequency speed regulation mode respectively, and
Wherein: v 0 is the maximum output value of the wind speed sensor, and v is the current detection value of the wind speed sensor; h 0 is the maximum output value of the water level sensor, and h is the current detection value of the water level sensor.
In this embodiment, taking deceleration as an example, the rotational speed of the fan after speed regulation is determined by the current speed and the speed regulation difference, wherein the speed regulation difference is a frequency variation value and is formed by a set basic speed difference part and a part varying with the frequency, and when the frequency is determined, the rotational speed after variation is equal to the current rotational speed and is obtained by cumulatively subtracting the set speed difference from the current frequency. Therefore, the current rotating speed is corresponding to each frequency update, and the algorithm is repeatedly executed within the time of the frequency update, so that the current rotating speed is taken as a reference, a value is subtracted from the current rotating speed at equal intervals for a plurality of times, the rotating speed before and after one-time frequency speed regulation is obtained, the fan rotating speed can be gradually reduced by continuously updating the follow-up frequency, the reduction shows a trend of being slow before and fast after the follow-up frequency, and the level fluctuation of speed regulation is reduced corresponding to the actual speed of the fan. The follow-up frequency is a frequency that varies with the detected value, and is a frequency at which the speed is adjusted, that is, a frequency at which the equation n=n 1-nf1 or n=n 1+nf2 is executed.
In one embodiment, the step of obtaining the level change of the 485 bus before and after speed regulation and judging whether the interference level exists comprises the following steps:
for a high-frequency speed regulation mode, acquiring the level change of 485 buses before and after speed regulation at the frequency of 2f 1 and judging whether an interference level exists or not;
For the low-frequency speed regulation mode, the level change of 485 buses before and after speed regulation is obtained at the frequency of 2f 2, and whether the interference level exists is judged.
In the present embodiment, in particular,
Wherein: f 1、f2 is the follow-up frequency in the high-frequency speed regulation mode and the low-frequency speed regulation mode respectively; v 0 is the maximum output value of the wind speed sensor, and v is the current detection value of the wind speed sensor; h 0 is the maximum output value of the water level sensor, and h is the current detection value of the water level sensor.
In the present embodiment, setting the detection frequency to 2 times the follow-up frequency can more accurately detect level fluctuation, and at the same time can prevent transient sampling from increasing the amount of data processed; when the follow-up frequency varies in real time, the detection frequency also varies in real time.
In one embodiment, the step of obtaining the level change of the 485 bus before and after speed regulation and judging whether the interference level exists comprises the following steps:
Acquiring the level of the first 3 speed regulation periods of the speed regulation time point and calculating to obtain a first level average value;
acquiring the level of 3 speed regulation periods after the speed regulation time point and calculating to obtain a second level average value;
Calculating whether the difference between the first level average value and the second level average value reaches a set threshold value or not, if so, judging that the interference level exists;
Wherein, the speed regulation period T=1/f, f is the follow-up frequency during speed regulation.
Optionally, in one embodiment, for the high frequency governor mode, the follow-up frequency is determined by:
For the low frequency governor mode, the follow-up frequency is determined by:
Wherein: f 1、f2 is the follow-up frequency in the high-frequency speed regulation mode and the low-frequency speed regulation mode respectively; v 0 is the maximum output value of the wind speed sensor, and v is the current detection value of the wind speed sensor; h 0 is the maximum output value of the water level sensor, and h is the current detection value of the water level sensor.
In this embodiment, since the timing point is determined after sampling, for level sampling before the timing point, the last value of the follow-up frequency may be multiplied by a set coefficient; in this embodiment, for the data before the timing point, a continuous sampling mode is adopted, and 1 data sampled first is discarded every 4 samples of data, so that the latest 3 samples of data are always reserved. For the data after the timing point, the timing point is taken as a sampling starting point.
In one embodiment, the step of obtaining the level change of the 485 bus before and after speed regulation and judging whether the interference level exists comprises the following steps:
Acquiring serial data bus level changes of 485 buses before and after speed regulation and judging whether interference levels exist or not;
and acquiring the serial clock bus level change of 485 buses before and after speed regulation and judging whether an interference level exists.
In this embodiment, the 485 bus, including the ripple stabilization of the serial data bus and the level stabilization of the serial clock bus, have different stabilization methods.
In one embodiment, the performing the interference level processing includes performing the interference level processing on a serial data bus of the 485 bus, and specifically includes the following steps:
Acquiring the highest level value and the lowest level value in the detection period;
respectively calculating the offset values of the highest level value, the lowest level value and the average level;
And outputting an inverse level according to the offset value.
In the present embodiment, for the serial data bus, the position of the level fluctuation (determined by the point in time corresponding to the peak or trough) and the offset value (the offset value is equal to the difference of the value of the level fluctuation minus the average level) are detected, and a level value in the opposite direction to the fluctuation level is output based on the offset value, and the disturbance is pulled back to the normal level.
In one embodiment, the performing the interference level processing includes performing the interference level processing on a serial clock bus of a 485 bus, and specifically includes the following steps:
Calculating the level average value in the detection period to obtain a third level average value;
Calculating a period of movement of the window in a direction away from the speed regulation time point, and calculating a level average value to obtain a fourth level average value;
If the fourth level average value is 0.3 times of high level, outputting a level to enable the third level average value to be 0.6 times of high level;
if the fourth level average value is 0.6 times of the low level, a level is output such that the third level average value is 0.3 times of the high level.
In this embodiment, taking the case of alternating high and low levels as an example, three periods of sampling are continuously performed, when there is no level interference, the average level is 0.3 times or 0.6 times of the highest level, and when the calculation window moves backward or forward, the level is considered to be non-interference without considering interference caused by non-speed regulation, and the current detected level is processed based on the interference, and the characteristic that a serial clock bus outputs a regular square wave is utilized.
Fig. 2 shows an internal structural view of the intelligent drainage-free device in one embodiment. As shown in fig. 2, the intelligent drainage free device comprises a processor, a memory, a network interface, an input device and a display screen which are connected through a system bus. The memory includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium of the intelligent drainage-free device stores an operating system and also can store a computer program, and when the computer program is executed by a processor, the processor can realize the speed regulation and level stabilization method of the intelligent drainage-free device provided by the embodiment of the invention. The internal memory can also store a computer program, and when the computer program is executed by the processor, the processor can be enabled to execute the speed regulation and level stabilization method of the intelligent drainage-free device provided by the embodiment of the invention. The display screen of the intelligent drainage-free device can be a liquid crystal display screen or an electronic ink display screen, the input device of the intelligent drainage-free device can be a touch layer covered on the display screen, can also be a key, a track ball or a touch pad arranged on the shell of the intelligent drainage-free device, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the structure shown in fig. 2 is merely a block diagram of a portion of the structure associated with the present inventive arrangements and is not limiting of the intelligent water drain free apparatus to which the present inventive arrangements are applied, and that a particular intelligent water drain free apparatus may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, an intelligent drain-free device is provided, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
Acquiring a numerical value of a wind speed sensor and a water level sensor;
determining a fan speed regulation mode according to the values of the wind speed sensor and the water level sensor, wherein the fan speed regulation mode comprises a high-frequency speed regulation mode and a low-frequency speed regulation mode;
Adjusting the rotating speed of the fan according to the determined fan speed regulation mode;
Acquiring the level change of 485 buses before and after speed regulation and judging whether an interference level exists or not;
And if the interference level exists, performing interference level processing.
In one embodiment, a computer readable storage medium is provided, having a computer program stored thereon, which when executed by a processor causes the processor to perform the steps of:
Acquiring a numerical value of a wind speed sensor and a water level sensor;
determining a fan speed regulation mode according to the values of the wind speed sensor and the water level sensor, wherein the fan speed regulation mode comprises a high-frequency speed regulation mode and a low-frequency speed regulation mode;
Adjusting the rotating speed of the fan according to the determined fan speed regulation mode;
Acquiring the level change of 485 buses before and after speed regulation and judging whether an interference level exists or not;
And if the interference level exists, performing interference level processing.
It should be understood that, although the steps in the flowcharts of the embodiments of the present invention are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in various embodiments may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor do the order in which the sub-steps or stages are performed necessarily performed in sequence, but may be performed alternately or alternately with at least a portion of the sub-steps or stages of other steps or other steps.
Those skilled in the art will appreciate that all or part of the processes in the methods of the above embodiments may be implemented by a computer program for instructing relevant hardware, where the program may be stored in a non-volatile computer readable storage medium, and where the program, when executed, may include processes in the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (SYNCHLINK) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. The intelligent drainage-free device speed regulation and level stabilization method is characterized by comprising the following steps of:
Acquiring a numerical value of a wind speed sensor and a water level sensor;
determining a fan speed regulation mode according to the values of the wind speed sensor and the water level sensor, wherein the fan speed regulation mode comprises a high-frequency speed regulation mode and a low-frequency speed regulation mode;
The rotating speed of the fan is adjusted according to the determined fan speed regulation mode, and the method comprises the following steps:
for the high frequency adjustment mode, the fan speed is determined by:
n＝n1-nf1
for the low frequency adjustment mode, the fan speed is determined by:
n＝n1+nf2
Wherein: n is the adjusted rotation speed; n 1 is the rotation speed before adjustment; n f1、nf2 is the speed regulation difference in the high-frequency speed regulation mode and the low-frequency speed regulation mode respectively, n f1＝n0(1+f1),nf2＝n0(1+f2),n0 is the set speed difference, and f 1、f2 is the follow-up frequency in the high-frequency speed regulation mode and the low-frequency speed regulation mode respectively, and
Wherein: v 0 is the maximum output value of the wind speed sensor, and v is the current detection value of the wind speed sensor; h 0 is the maximum output value of the water level sensor, and h is the current detection value of the water level sensor;
Acquiring the level change of 485 buses before and after speed regulation and judging whether an interference level exists or not;
And if the interference level exists, performing interference level processing.
2. The intelligent drainage-free device speed regulation and level stabilization method according to claim 1, wherein the determining a fan speed regulation mode according to values of a wind speed sensor and a water level sensor comprises:
Judging whether the output voltage of the wind speed sensor is more than or equal to 10V and whether the numerical value of the water level sensor is more than or equal to 1/2;
if yes, setting a fan adjusting mode as a high-frequency speed regulating mode;
Judging whether the output voltage of the wind speed sensor is smaller than 10V and the numerical value of the water level sensor is smaller than 1/2;
if yes, the fan adjusting mode is set to be a low-frequency speed adjusting mode.
3. The method for speed regulation and level stabilization of an intelligent drainage-free device according to claim 1, wherein the steps of obtaining the level change of 485 buses before and after speed regulation and judging whether an interference level exists comprise the steps of:
for a high-frequency speed regulation mode, acquiring the level change of 485 buses before and after speed regulation at the frequency of 2f 1 and judging whether an interference level exists or not;
For the low-frequency speed regulation mode, the level change of 485 buses before and after speed regulation is obtained at the frequency of 2f 2, and whether the interference level exists is judged.
4. The method for speed regulation and level stabilization of an intelligent drainage-free device according to claim 1, wherein the steps of obtaining the level change of 485 buses before and after speed regulation and judging whether an interference level exists comprise the steps of:
Acquiring the level of the first 3 speed regulation periods of the speed regulation time point and calculating to obtain a first level average value;
acquiring the level of 3 speed regulation periods after the speed regulation time point and calculating to obtain a second level average value;
Calculating whether the difference between the first level average value and the second level average value reaches a set threshold value or not, if so, judging that the interference level exists;
Wherein, the speed regulation period T=1/f, f is the follow-up frequency during speed regulation.
5. The method for speed regulation and level stabilization of an intelligent drainage-free device according to claim 1, wherein the steps of obtaining the level change of 485 buses before and after speed regulation and judging whether an interference level exists comprise the steps of:
Acquiring serial data bus level changes of 485 buses before and after speed regulation and judging whether interference levels exist or not;
and acquiring the serial clock bus level change of 485 buses before and after speed regulation and judging whether an interference level exists.
6. The method for speed regulation and level stabilization of intelligent drainage-free device according to claim 5, wherein the interference level processing comprises the step of performing interference level processing on a serial data bus of a 485 bus, and specifically comprises the following steps:
Acquiring the highest level value and the lowest level value in the detection period;
respectively calculating the offset values of the highest level value, the lowest level value and the average level;
And outputting an inverse level according to the offset value.
7. The method for speed regulation and level stabilization of intelligent drainage-free device according to claim 4, wherein the interference level processing comprises the step of performing interference level processing on a serial clock bus of a 485 bus, and specifically comprises the following steps:
Calculating the level average value in the detection period to obtain a third level average value;
Calculating a period of movement of the window in a direction away from the speed regulation time point, and calculating a level average value to obtain a fourth level average value;
If the fourth level average value is 0.3 times of high level, outputting a level to enable the third level average value to be 0.6 times of high level;
if the fourth level average value is 0.6 times of the low level, a level is output such that the third level average value is 0.3 times of the high level.
8. An intelligent drainage-free device, comprising a memory, a processor and a computer program stored on the memory and operable on the processor, wherein the processor executes the computer program to perform the intelligent drainage-free device speed regulation and level stabilization method of any one of claims 1-7.
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| CN101979838A (en) * | 2010-10-27 | 2011-02-23 | 锦州重型水泵有限公司 | System for forecasting mine water regime and intelligently controlling drainage |
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| CN114251297A (en) | 2022-03-29 |
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