An intelligent water dispenser energy saver based on membership function

Abstract

The present invention discloses an intelligent water dispenser energy saver based on membership function, which aims to reduce ineffective heating through fuzzy control theory, improve power saving effect, and avoid producing "thousands of boiling water" that is not good for health. The energy saver includes a single-chip microcomputer circuit, a power conversion circuit, a heating detection circuit, a calendar clock circuit, a composite switch and control circuit, a working mode indication and key circuit, and a buzzer reminder circuit. It has the characteristics of low power consumption, low cost, flexible and convenient use, strong adaptability, etc., and has functions such as automatic heating detection, buzzer reminder, composite switch control, and timer switch. Through the self-learning function, the energy saver can continuously optimize the heating time parameters according to actual use, realize intelligent control, significantly save electricity, and conform to the green, environmental protection, healthy, and low-carbon life concept.

Description

Technical Field

[0001] The invention relates to the technical field of water dispenser power saver, and in particular to an intelligent water dispenser power saver based on membership function. Background Art

[0002] Water dispensers are widely used in homes and offices in my country, and have formed a market with annual sales of 3 billion to 4 billion yuan. In this huge market, ordinary water dispensers still have the largest sales volume. According to surveys, ordinary water dispensers consume 1.2-1.8 degrees of electricity per day, and more than 300 degrees of electricity per year. If multiplied by the huge number of owners (tens of millions), the amount of electricity consumed is very astonishing. However, most of the electricity consumed is wasted.

[0003] The reasons for the waste of electricity are: first, the functions are not perfect and cannot be applied to various applications; second, its own power consumption is high, which makes the overall energy saving effect poor; third, the intelligent control is not perfect and the use is not convenient. At the same time, the day and night standby work and repeated heating of the water dispenser not only waste electricity, but also produce the so-called "thousand-boiled water", which is not good for health. At the same time, it is easy to produce scale in the water dispenser, which is not good for the water dispenser. Summary of the invention

[0004] The present invention aims to provide an intelligent water dispenser energy saver based on membership function. The membership function is established according to actual conditions by using fuzzy control theory and applied to the water dispenser energy saver to reduce ineffective heating, improve power saving effect and avoid the generation of "thousand-boiled water" which is not good for health.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent water dispenser energy saver based on membership function, comprising a single-chip microcomputer circuit, a power conversion circuit connected to the mains, and a heating detection circuit; the single-chip microcomputer circuit is connected to a calendar clock circuit, a composite switch and control circuit connected to the water dispenser, a working mode indication and button circuit, and a buzzer reminder circuit; the heating detection circuit is connected between the single-chip microcomputer circuit and the composite switch and control circuit; the power conversion circuit is respectively connected to the single-chip microcomputer circuit, the calendar clock circuit, and the composite switch and control circuit.

[0006] Specifically, the single-chip microcomputer circuit is composed of the minimum system of the single-chip microcomputer, including a crystal oscillator circuit and a reset circuit, which serve as the control core of the power saver.

[0007] Specifically, the power conversion circuit is composed of a power transformer, a bridge rectifier circuit and a voltage stabilizing module, and is used to supply the DC regulated power required by the single chip microcomputer and peripheral circuits.

[0008] Specifically, the heating detection circuit is mainly composed of a current transformer (CT), a voltage comparator LM393, and a full-bridge rectifier circuit, and is used to detect whether the heating is finished.

[0009] Specifically, the calendar clock circuit is mainly composed of DS12C887, which satisfies the requirements of the power saver for reading the real-time clock and calendar data to realize the timing switch.

[0010] Specifically, the composite switch and control circuit is mainly composed of a relay and its driving circuit, a bidirectional thyristor and its driving circuit, and is connected to the switch of the water dispenser to control the switch of the water dispenser.

[0011] Specifically, the working mode indication and key circuit is mainly composed of light emitting diodes, and the corresponding mode lights are lit to indicate which working mode is currently.

[0012] Specifically, the buzzer reminder circuit is mainly composed of a buzzer and its driving circuit, and is used to remind the end of heating and the start and end of get off work time.

[0013] The principle and beneficial effects of this technical solution:

[0014] This intelligent water dispenser energy saver is a kind of intelligent water dispenser energy saver developed based on membership function, which has the characteristics of low power consumption, low cost, flexible and convenient use, strong adaptability, etc. It has the functions of automatic heating detection, buzzer reminder, compound switch control, timer switch, etc. Due to the adoption of fuzzy control based on membership function, the number of invalid heating times is greatly reduced, which not only effectively avoids the generation of "thousands of boiling water", but also significantly saves electricity, which is in line with the current green, environmentally friendly, healthy and low-carbon lifestyle trend. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The hardware block diagram of the smart water dispenser power saver of the present invention;

[0016] Figure 2 It is the main program flowchart of the intelligent water dispenser energy saver of the present invention;

[0017] Figure 3 This is the flowchart of the self-learning fuzzy control program of the present invention. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below with reference to the accompanying drawings and embodiments:

[0019] like Figure 1As shown in the figure, the smart water dispenser energy saver consists of 7 parts, including power conversion circuit, single-chip circuit, buzzer reminder circuit, working mode indication and button circuit, calendar clock circuit, heating detection circuit, composite switch and control circuit. Among them, the single-chip is the core, and heating detection and composite switch control are the key to saving energy and avoiding the production of thousands of boiling water.

[0020] The software design of this intelligent water dispenser energy saver sets five working modes according to the application scenarios of the water dispenser energy saver: normally open mode, home mode 1, home mode 2, office mode 1, and office mode 2.

[0021] like Figure 2 As shown, after the process starts, the system performs initialization settings and prepares to receive key input or perform default settings. Entering the key interrupt, the system waits for the user to select the working mode by pressing the key. Then it detects whether a key is pressed. If no key is pressed, the system will continue to wait; if a key is pressed, the "key value plus 1" operation is performed. "Key value plus 1" is used to check whether the key value is 1. If so, the system is set to "normal open mode". If the key value is not 1, the process continues to check whether the key value is 2. If so, the system is set to "home mode 1". If the key value is not 2, the process continues to check whether the key value is 3. If so, the system is set to "home mode 2". If the key value is not 3, the process continues to check whether the key value is 4. If so, the system is set to "office mode 1". If the key value is not 4, the process continues to check whether the key value is 5. If so, the system is set to "office mode 2". If the key value is not any value between 1 and 5, the key value will be reset to 0, and the process returns to the "key interrupt" step to wait for new key input.

[0022] The water dispenser startup and shutdown times are different for each working mode. Regardless of the mode, the energy saver will perform heating detection and make the buzzer sound an alarm when the water boils, reminding people to get water in time to avoid repeated heating of water, wasting energy, and also avoiding the formation of "thousands of boiling water". The normally open mode is used when the water dispenser needs to be operated under special circumstances other than the above four working modes.

[0023] like Figure 3 As shown in the figure, the power saver is a typical fuzzy control system. Since the power saver is independent of the water dispenser and they are only electrically connected, it can only be judged whether the water dispenser is in the heating state by detecting the current flowing through the water dispenser. However, fuzzy control can be used to realize the intelligence of the power saver, reduce ineffective heating, and save energy. As mentioned earlier, by setting the working mode, the water dispenser can be turned on and off at a scheduled time to avoid heating and wasting energy when no one is using it. This control is clear and explicit. When someone uses the water dispenser, fuzzy control is required to control the heating of the water dispenser according to the number of users and the frequency of drinking water.

[0024] There are four parameters that need to be determined for the power saver. The first is the initial heating time when the machine is turned on, which is set to t1; the second is the reheating time after the boiled water is drained (the boiled water is taken away), which is set to t2; the third is the time for reheating after the boiled water is not drained (no one collects water) and the temperature drops to the heating condition, which is set to t3; the fourth is if no one collects water after the water is boiled, the temperature drops to the heating condition and is reheated, and the time interval from the water being boiled to the next heating is set to t4. Even for the same water dispenser, due to different seasons, different temperatures, and different initial temperatures of the water, the heating time t1-t3 and the interval time t4 are different every day. The uncertainty of temperature leads to the uncertainty of the heating time t1-t3 and the interval time t4. For different models of water dispensers, these time parameters are also different. This requires the power saver to have a self-learning function.

[0025] Every day, after the energy saver starts the water dispenser, it can record the initial heating time t1 and the reheating time t2. If it is determined that no one is receiving water, t3 and t4 are recorded, and the four parameters of the day are recorded. After fuzzy processing, they are stored in the database. When the energy saver starts the water dispenser the next day, these parameters can be called as initial values. Through continuous self-learning, the database is continuously expanded and updated. As long as the database is large enough, the parameters can be updated every day. This is the self-learning function of the energy saver. The combination of fuzzy control and self-learning algorithm makes the control of the energy saver more robust and more adaptable.

[0026] Taking the heating interval time t4 without draining the boiling water as an example, the membership function of t4 can be set as:

[0027]

[0028] The h in the above formula is the fuzzy value, which can be adjusted according to the self-learning situation.

[0029] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions or characteristics in the solution is not described in detail here. For those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An intelligent water dispenser energy saver based on membership function, characterized in that: It includes a single-chip microcomputer circuit, a power conversion circuit connected to the mains, and a heating detection circuit. The single-chip microcomputer circuit is connected to a calendar clock circuit, a composite switch and control circuit connected to a water dispenser, a working mode indication and key circuit, and a buzzer reminder circuit. The heating detection circuit is connected between the single-chip microcomputer circuit and the composite switch and control circuit. The power conversion circuit is respectively connected to the single-chip microcomputer circuit, the calendar clock circuit, and the composite switch and control circuit.

2. According to claim 1, the intelligent water dispenser power saver based on membership function is characterized by: The single-chip circuit is composed of the minimum system of the single-chip, including a crystal oscillator circuit and a reset circuit, which serve as the control core of the power saver.

3. The intelligent water dispenser energy saver based on membership function according to claim 1, characterized in that: The power conversion circuit is composed of a power transformer, a bridge rectifier circuit and a voltage stabilizing module, and is used to supply the DC regulated power required by the single chip microcomputer and peripheral circuits.

4. The intelligent water dispenser power saver based on membership function according to claim 1, characterized in that: The heating detection circuit is mainly composed of a current transformer (CT), a voltage comparator LM393, and a full-bridge rectifier circuit, and is used to detect whether the heating is finished.

5. The intelligent water dispenser energy saver based on membership function according to claim 1, characterized in that: The calendar clock circuit is mainly composed of DS12C887, which meets the requirements of the power saver for reading the real-time clock and calendar data to realize the timing switch.

6. The intelligent water dispenser power saver based on membership function according to claim 1, characterized in that: The composite switch and control circuit is mainly composed of a relay and its driving circuit, a bidirectional thyristor and its driving circuit, and is connected to the switch of the water dispenser to control the switch of the water dispenser.

7. The intelligent water dispenser energy saver based on membership function according to claim 1, characterized in that: The working mode indication and key circuit is mainly composed of light emitting diodes, and the corresponding mode lights are lit to indicate which working mode is currently.

8. The intelligent water dispenser power saver based on membership function according to claim 1, characterized in that: The buzzer reminder circuit is mainly composed of a buzzer and a driving circuit thereof, and is used for reminding the end of heating and the start and end of get off work time.

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