CN116067116A

CN116067116A - Man-machine interaction system for variable-frequency refrigerator

Info

Publication number: CN116067116A
Application number: CN202310102653.XA
Authority: CN
Inventors: 杨正; 杨凯; 李子胜
Original assignee: Hefei Meiling Union Technology Co Ltd
Current assignee: Hefei Meiling Union Technology Co Ltd
Priority date: 2023-02-13
Filing date: 2023-02-13
Publication date: 2023-05-05

Abstract

The invention discloses a man-machine interaction system for a variable-frequency refrigerator. The method comprises the following steps: judging a refrigerator operation mode, judging whether the refrigerator has faults or not by the controller, operating the system according to the fault mode, and controlling the corresponding display lamp beads to perform flicker display by the controller according to the fault display position; the system operates in a conventional mode, comprising the sub-steps of: the controller judges whether key interaction exists or not, and when no key is pressed, the display lamp bead is turned on or off according to the last confirmed state or the default state when the power is on; when a key is pressed, the controller reads the key state and then controls the display lamp beads to be on or off to change the display state. According to the invention, the control of the display lamp beads is divided into three layers, wherein the first layer is a fault display layer for displaying a fault state, the second layer is a flashing layer for displaying display information when a key is pressed, and the third layer is a long bright layer for displaying information under normal conditions, so that the logic level is clear and the method has larger expandability.

Description

Man-machine interaction system for variable-frequency refrigerator

Technical Field

The invention belongs to the technical field of refrigerator control, and particularly relates to a man-machine interaction system for a variable-frequency refrigerator.

Background

Human-computer interaction in the variable-frequency refrigerator is generally realized by using an LED lamp and corresponding keys, and is realized by using one key corresponding to one or a group of LED lamps with the same function.

The main functions of man-machine interaction are to set the set temperatures of different refrigerator compartments (refrigerating chamber, freezing chamber and the like), set the operation rules of the refrigerator (such as quick cooling, intelligence and the like), and set certain factory test functions (such as hardware detection and the like).

In the prior art, each compartment uses one key to control a corresponding function, so that the operation is often complex, and meanwhile, the complexity of production detection is increased due to excessive keys. In normal implementation, at least the normal mode and the fault mode should be included. Displaying the refrigerating gear in the conventional mode, and correspondingly indicating when a user adjusts the gear; faults of the sensor and other peripherals are displayed in the fault mode.

Disclosure of Invention

The invention aims to provide a man-machine interaction system for a variable-frequency refrigerator, which is characterized in that the control of display lamp beads is divided into three layers, wherein the first layer is a fault display layer for displaying fault states, the second layer is a flashing layer in a conventional display layer for displaying display information when keys are pressed, and the third layer is a long bright layer of the conventional display layer for displaying information under normal conditions, so that the logic level is clear and the system has larger expandability.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a man-machine interaction system for a variable-frequency refrigerator, which comprises the following steps:

stp1, powering on the refrigerator, and self-checking and initializing the system;

stp2, judging the refrigerator operation mode, wherein the operation mode comprises a normal mode and a fault mode; the initial mode defaults to the normal mode; the controller judges whether the refrigerator has faults or not, and if so, the step Stp3 is carried out; if no fault occurs, entering a step Stp4;

stp3, the system operates according to the fault mode, and the controller controls the corresponding display lamp beads to perform flicker display according to the fault display position;

stp4, the system operates in a conventional mode, comprising the sub-steps of:

SS01, divide the display lamp bead of the refrigerator, regard LED1, LED2, LED3 as group 1, regard LED4, LED5 as group 2, regard LED6, LED7 as group 3; and limiting each group of lamp beads to be on at the same time and only one lamp bead to be on;

the SS02 and the controller judge whether the key interaction exists,

when no key is pressed, the display lamp bead is turned on or off in the last confirmed state or in the default state when the power is on;

when a key is pressed, the controller reads the key state and then controls the display lamp beads to be on or off to change the display state.

Preferably, one end of the display lamp bead is connected in series with a resistor and is connected with an output port of the controller, and the other end of the display lamp bead is connected with a voltage source VCC.

Preferably, one end of the KEY is connected with a voltage source VCC, and the other end of the KEY is connected with a resistor in series to a pin of a controller KEY; and a grounding resistor and a grounding capacitor are also connected between the key and the controller.

Preferably, in step SS02, the controller receives the key input signal and then enters a modification state; the controller controls the display lamp beads to flash in sequence, the display lamp beads of the gear to be selected flash, the key operation is stopped for three seconds to determine, and the modification state is exited.

Preferably, the key control is controlled by a shaldow variable signal, the shaldow variable signal is a single-byte variable with one bit being 1, and the shaldow variable corresponds to the display lamp beads one by one; after the key is pressed once, the shaldow variable is shifted one bit to the right.

Preferably, the maximum value of the shaldow variable is 0x40, and the shaldow variable corresponds to the LED7 to flash; after the shaldow variable exceeds 0x40, the loop is cycled to 0x01.

The invention has the following beneficial effects:

according to the invention, the control of the display lamp beads is divided into three layers, the first layer is a fault display layer used for displaying a fault state, the second layer is a scintillation layer in a conventional display layer used for displaying display information when a key is pressed, and the third layer is a long bright layer of the conventional display layer used for displaying information under normal conditions, so that the logic level is clear and the method has larger expandability.

Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a logical general block diagram of a human-machine interaction system for a variable frequency refrigerator of the present invention;

FIG. 2 is a general block diagram of a conventional mode;

FIG. 3 is a block diagram of key detection logic;

FIG. 4 is a key circuit diagram;

fig. 5 is a circuit diagram showing a lamp bead.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-2, the present invention is a human-computer interaction system for a variable frequency refrigerator, comprising the following steps:

stp4, the system operates in a conventional mode, comprising the sub-steps of:

the SS02 and the controller judge whether the key interaction exists,

when a key is pressed, the controller reads the key state and then controls the display lamp beads to be turned on and off to change the display state;

when the key is input, the controller receives the signal and then enters a modification state; the controller controls the display lamp beads to flash in sequence, the display lamp beads of the gear to be selected flash, the key operation is stopped for three seconds to determine, and the modification state is exited.

As shown in fig. 4-5, one end of the display lamp bead is connected in series with a resistor and connected with the output port of the controller, and the other end of the display lamp bead is connected with a voltage source VCC. One end of the KEY is connected with a voltage source VCC, and the other end of the KEY is connected with a resistor in series to a pin of the controller KEY; and a grounding resistor and a grounding capacitor are also connected between the key and the controller.

As shown in fig. 3, the key control is controlled by a shaldow variable signal, wherein the shaldow variable signal is a single byte variable with one bit being 1, and the shaldow variable corresponds to the display lamp beads one by one; when the corresponding shaldow variable is 1, the display lamp bead is lightened; after the key is pressed once, the shaldow variable is shifted one bit to the right. When the power is on each time, the variable is required to be initialized, the value 1 is assigned to the corresponding lighting bit in the state without keys in the LEDs 1, 2 and 3, and the value 0 is assigned to other bits

The maximum value of the shaldow variable is 0x40, and the shaldow variable is corresponding to the LED7 to flash; after the shaldow variable exceeds 0x40, the loop is cycled to 0x01.

Each time the short key operation enters a state to be modified, the gear is circulated unidirectionally in a direction from left to right ('LED 1-LED2-LED3-LED4-LED5-LED6-LED 7'), the gear indicator lamp selected in the state to be modified flashes, the operation is stopped for three seconds, the last flashing gear is determined, and meanwhile, the state to be modified is exited. The next short key operation blinks from the next position after the last determination. Corresponding to the scintillation layer.

When the key is pressed. When the key logic is finished to exit the state to be modified each time, namely, the condition of stopping operation for three seconds to determine the last flashing gear is achieved, the lamp bead lighting state in the no-key interaction mode is modified.

It should be noted that, in the above system embodiment, each unit included is only divided according to the functional logic, but not limited to the above division, so long as the corresponding function can be implemented; in addition, the specific names of the functional units are also only for distinguishing from each other, and are not used to limit the protection scope of the present invention.

In addition, it will be understood by those skilled in the art that all or part of the steps in implementing the methods of the embodiments described above may be implemented by a program to instruct related hardware, and the corresponding program may be stored in a computer readable storage medium, such as a ROM/RAM, a magnetic disk or an optical disk, etc.

The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims

1. A human-computer interaction system for a variable frequency refrigerator, comprising the steps of:

stp4, the system operates in a conventional mode, comprising the sub-steps of:

the SS02 and the controller judge whether the key interaction exists,

2. The human-computer interaction system for the variable-frequency refrigerator according to claim 1, wherein one end of the display lamp bead is connected in series with a resistor and is connected with an output port of the controller, and the other end of the display lamp bead is connected with a voltage source VCC.

3. The human-computer interaction system for the variable-frequency refrigerator according to claim 1, wherein one end of the KEY is connected with a voltage source VCC, and the other end of the KEY is connected with a resistor in series to a pin of a controller KEY; and a grounding resistor and a grounding capacitor are also connected between the key and the controller.

4. The human-computer interaction system for the variable frequency refrigerator according to claim 1, wherein in the step SS02, the controller receives the key input signal and then enters a modification state; the controller controls the display lamp beads to flash in sequence, the display lamp beads of the gear to be selected flash, the key operation is stopped for three seconds to determine, and the modification state is exited.

5. The human-computer interaction system for the variable-frequency refrigerator according to claim 1, wherein the key control is controlled by a shaldow variable signal, the shaldow variable signal is a single-byte variable with one bit being 1, and the shaldow variable corresponds to display lamp beads one by one; after the key is pressed once, the shaldow variable is shifted one bit to the right.

6. The human-computer interaction system for the variable frequency refrigerator according to claim 5, wherein the shardow variable is 0x40 at maximum, and the shardow variable is corresponding to the LED7 to flash; after the shaldow variable exceeds 0x40, the loop is cycled to 0x01.