Multi-head stove knob control method and system and multi-head stove

Abstract

The invention discloses a multi-head stove knob control method and system and a multi-head stove. The method comprises the following steps: step 1, triggering and acquiring a level signal from an acquisition bus; step 2, judging whether a furnace end in a starting state exists in the multi-head cooking range or not according to the level signal; step 3, outputting a first control level in the control bus to ensure that the control knob can lighten a shutdown indicator light when the fact that the furnace end is in the startup state is determined; 4, when it is determined that no furnace end is in the starting state, preset countdown is started; step 5, determining that the countdown is ended, judging whether the level signal in the current acquisition bus is changed or not, and when the level signal is not changed, outputting a second control level in the control bus so as to turn off a power-off indicator lamp of the control knob; and if the level signal in the current acquisition bus changes, returning to the step 2. According to the invention, the interactivity between cooking ranges is improved. The stove is mainly used in the technical field of stoves.

Description

Technical Field

[0001] The invention relates to the technical field of stoves, and in particular to a multi-burner stove knob control method and system, and a multi-burner stove. Background Art

[0002] For a multi-burner stove, it will be provided with multiple knobs. For each knob, when the corresponding burner is working, the knob will display a logo light indicating that the burner is working. When the burner is not working, the corresponding knob will turn off the logo light, or display a logo light indicating that the burner is not working. In the related art, there is a lack of uniformity between the knobs of the multi-burner stove, which will result in the entire multi-burner stove not being strong in terms of prompts, which is not conducive to the unified grasp of the user. Summary of the invention

[0003] The present invention provides a multi-burner stove knob control method, system and multi-burner stove to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The present invention provides a multi-burner stove knob control method, comprising: step 1, triggering and acquiring a level signal from an acquisition bus; step 2, judging whether there is a burner in the multi-burner stove in a power-on state according to the level signal; step 3, when it is determined that there is a burner in the power-on state, outputting a first control level in the control bus to ensure that the control knob can light up its power-off indicator light; step 4, when it is determined that no burner is in the power-on state, starting a preset countdown; step 5, determining that the countdown ends, judging whether the level signal in the current acquisition bus changes, and when the level signal does not change, outputting a second control level in the control bus to turn off the power-off indicator light of the control knob; when the level signal in the current acquisition bus changes, returning to step 2.

[0005] On the other hand, a multi-burner stove knob control system is provided, comprising: a main control circuit, a power supply terminal, a ground terminal, a collection bus, a control bus and a plurality of unit control circuits; one unit control circuit is arranged on one control knob; The main control circuit includes: a main control chip and a main control switch circuit; the i-th unit control circuit includes: an i-th control chip, an i-th first resistor, an i-th power-on indicator light control circuit, an i-th power-off indicator light control circuit, an i-th power-on indicator light and an i-th power-off indicator light; The power supply terminal VDD is connected to the power supply terminal of the i-th control chip and the power supply terminal of the main control chip respectively, and the ground terminal is connected to the ground terminal of the i-th control chip and the ground terminal of the main control chip respectively; The first output terminal of the i-th control chip is connected to one end of the i-th first resistor, and the other end of the i-th first resistor is connected to the input terminal of the main control chip through the acquisition bus; The second output end of the i-th control chip is connected to the control end of the i-th power-on indicator light control circuit and the control end of the i-th power-off indicator light control circuit respectively; One end of the switch side of the i-th power-on indicator light control circuit is connected to the negative end of the i-th power-on indicator light, the positive end of the i-th power-on indicator light is connected to the power supply end, and the other end of the switch side of the i-th power-on indicator light control circuit is connected to the ground end; One end of the switch side of the i-th shutdown indicator light control circuit is connected to the power supply end, the other end of the switch side of the i-th shutdown indicator light control circuit is connected to the positive end of the i-th shutdown indicator light, the negative pole of the i-th shutdown indicator light is connected to one end of the switch side of the main control switch circuit through a control bus, the output end of the main control chip is connected to the control end of the main control switch circuit, and the other end of the switch side of the main control switch circuit is connected to the ground end; wherein, i=1,2,…,n; n represents the number of unit control circuits, n is a positive integer, and n is greater than or equal to 2.

[0006] Further, the i-th power-on indicator light control circuit comprises: an i-th second resistor, an i-th third resistor, an i-th fourth resistor and an i-th first MOS tube; The drain of the i-th first MOS tube is connected to one end of the i-th fourth resistor, and the other end of the i-th fourth resistor is connected to the negative end of the i-th power-on indicator light. The gate of the i-th first MOS tube is respectively connected to one end of the i-th second resistor and one end of the i-th third resistor, and the source of the i-th first MOS tube is respectively connected to the other end of the i-th third resistor and the ground terminal GND; the other end of the i-th second resistor is connected to the second output end of the i-th control chip.

[0007] Further, the i-th shutdown indicator light control circuit comprises: an i-th fifth resistor, an i-th sixth resistor, an i-th seventh resistor and an i-th second MOS tube; The gate of the i-th second MOS transistor is respectively connected to one end of the i-th fifth resistor and one end of the i-th sixth resistor, the other end of the i-th fifth resistor is connected to the second output end of the i-th control chip, and the drain of the i-th second MOS transistor is respectively connected to the other end of the i-th sixth resistor and the power supply terminal VDD; The source of the i-th second MOS tube is connected to the positive terminal of the i-th shutdown indicator light, and the negative terminal of the i-th shutdown indicator light is connected to one end of the i-th seventh resistor.

[0008] Further, the main control switch circuit includes: an eighth resistor, a ninth resistor and a third MOS tube; The gate of the third MOS tube is respectively connected to one end of the eighth resistor and one end of the ninth resistor, and the source of the third MOS tube is respectively connected to the other end of the ninth resistor and the ground end; The other end of the eighth resistor is connected to the output end of the main control chip, and the drain of the third MOS tube is connected to the other end of the i-th seventh resistor.

[0009] Furthermore, the main control circuit also includes a filter capacitor, one end of the filter capacitor is connected to the power supply end, and the other end of the filter capacitor is connected to the ground end.

[0010] Furthermore, the main control chip is a single chip microcomputer.

[0011] Furthermore, the i-th shutdown indicator light is a white light LED lamp bead.

[0012] Furthermore, the i-th power-on indicator light is a red LED lamp bead.

[0013] On the other hand, a multi-burner stove is provided, which integrates a multi-burner stove knob control system according to any one of the above technical solutions.

[0014] The present invention has at least the following beneficial effects: The method of the present invention obtains a level signal through an acquisition bus, and uses the level signal to determine whether the multi-burner stove is turned on or off. Therefore, the shutdown indicator light is uniformly controlled according to the power on or off, and the shutdown indicator light is uniformly turned off. The interactivity between stoves is improved. The present invention also provides a corresponding system and a multi-burner stove, and the beneficial effects of the system and the multi-burner stove are similar to those of the method, and will not be described again here. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0016] Figure 1 It is a flowchart of the steps of the multi-burner stove knob control method; Figure 2 It is a circuit structure diagram of a unit control circuit; Figure 3 It is a schematic diagram of the circuit connection structure of the first power-on indicator light control circuit and the second power-off indicator light control circuit; Figure 4 It is a schematic diagram of the circuit connection structure of the main control circuit. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] It should be noted that, although the functional modules are divided in the system schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the system or the order in the flowchart. The terms "first", "second", etc. in the specification, claims and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0019] refer to Figure 1 , Figure 1 It is a flow chart of the steps of the knob control method of a multi-burner stove. Figure 2 It is a circuit structure diagram of the unit control circuit. Figure 3 It is a circuit connection structure diagram of a first power-on indicator light LED1 control circuit and a second power-off indicator light control circuit. Figure 4 It is a schematic diagram of the circuit connection structure of the main control circuit.

[0020] The multi-burner stove knob control method mainly relies on the hardware structure of the multi-burner stove knob control system. For the convenience of description, it is now described from the perspective of the multi-burner stove knob control system.

[0021] Among them, the multi-burner stove knob control system is mainly used in multi-burner stoves. A multi-burner stove refers to a stove with multiple burners. In a multi-burner stove, each burner has a control knob, and the control knob is used to control the burner to turn on (ignite) or turn off (turn off the fire).

[0022] In order to allow users to clearly know the working status of each burner, each control knob is provided with an indicator light to inform the user through light indication whether the current burner is in the on state or the off state.

[0023] In order to facilitate users to have a more holistic perception of multiple burners, the present application provides a multi-burner stove knob control system, including: a main control circuit, a power supply terminal VDD, a ground terminal GND, an acquisition bus, a control bus and several unit control circuits; one unit control circuit is set on one control knob.

[0024] In actual operation, the power supply terminal VDD and the ground terminal GND are connected to an external power supply to supply power to the main control circuit and several unit control circuits. Of course, the external power supply can be direct current converted from the mains power supply or direct current from an energy storage system (battery system).

[0025] The main control circuit includes: a main control chip U5 and a main control switch circuit.

[0026] For the sake of convenience, the present application takes four control knobs as an example, that is, there are four unit control circuits, wherein the four unit control circuits are recorded as: a first unit control circuit, a second unit control circuit, a third unit control circuit, and a fourth unit control circuit.

[0027] The first unit control circuit includes: a first control chip U1, a first resistor 1R1, a first power-on indicator LED1 control circuit, a first power-off indicator LED2 control circuit, a first power-on indicator LED1, and a first power-off indicator LED2.

[0028] The second unit control circuit includes: a second control chip U2, a second first resistor 2R2, a second power-on indicator light control circuit, a second power-off indicator light control circuit, a second power-on indicator light, and a second power-off indicator light.

[0029] The third unit control circuit includes: a third control chip U3, a third first resistor 3R1, a third power-on indicator light control circuit, a third power-off indicator light control circuit, a third power-on indicator light and a third power-off indicator light.

[0030] The fourth unit control circuit includes: a fourth control chip U4, a fourth first resistor 4R1, a fourth power-on indicator light control circuit, a fourth power-off indicator light control circuit, a fourth power-on indicator light, and a fourth power-off indicator light.

[0031] The power supply terminal VDD is connected to the power supply terminal of the first control chip U1 and the power supply terminal of the main control chip U5 respectively, and the ground terminal GND is connected to the ground terminal of the first control chip U1 and the ground terminal of the main control chip U5 respectively.

[0032] The first output terminal of the first control chip U1 is connected to one end of the first resistor 1R1 , and the other end of the first resistor 1R1 is connected to the input terminal of the main control chip U5 through an acquisition bus.

[0033] The second output end of the first control chip U1 is connected to the control end of the first power-on indicator light LED1 control circuit and the control end of the first power-off indicator light LED2 control circuit respectively.

[0034] One end of the switch side of the first power-on indicator LED1 control circuit is connected to the negative terminal of the first power-on indicator LED1, the positive terminal of the first power-on indicator LED1 is connected to the power supply terminal VDD, and the other end of the switch side of the first power-on indicator LED1 control circuit is connected to the ground terminal GND.

[0035] One end of the switch side of the first shutdown indicator light LED2 control circuit is connected to the power supply end VDD, the other end of the switch side of the first shutdown indicator light LED2 control circuit is connected to the positive end of the first shutdown indicator light LED2, the negative pole of the first shutdown indicator light LED2 is connected to one end of the switch side of the main control switch circuit through a control bus, the output end of the main control chip U5 is connected to the control end of the main control switch circuit, and the other end of the switch side of the main control switch circuit is connected to the ground end GND.

[0036] The power supply terminal VDD is connected to the power supply terminal of the second control chip U2 and the power supply terminal of the main control chip U5 respectively, and the ground terminal GND is connected to the ground terminal of the second control chip U2 and the ground terminal of the main control chip U5 respectively.

[0037] The first output terminal of the second control chip U2 is connected to one end of the second first resistor 2R2, and the other end of the second first resistor 2R2 is connected to the input terminal of the main control chip U5 through the acquisition bus.

[0038] The second output end of the second control chip U2 is connected to the control end of the second power-on indicator light control circuit and the control end of the second power-off indicator light control circuit respectively.

[0039] One end of the switch side of the second power-on indicator light control circuit is connected to the negative end of the second power-on indicator light, the positive end of the second power-on indicator light is connected to the power supply end VDD, and the other end of the switch side of the second power-on indicator light control circuit is connected to the ground end GND.

[0040] One end of the switch side of the second shutdown indicator light control circuit is connected to the power supply terminal VDD, the other end of the switch side of the second shutdown indicator light control circuit is connected to the positive end of the second shutdown indicator light, the negative pole of the second shutdown indicator light is connected to one end of the switch side of the main control switch circuit through the control bus, the output end of the main control chip U5 is connected to the control end of the main control switch circuit, and the other end of the switch side of the main control switch circuit is connected to the ground terminal GND.

[0041] The power supply terminal VDD is connected to the power supply terminal of the third control chip U3 and the power supply terminal of the main control chip U5 respectively, and the ground terminal GND is connected to the ground terminal of the third control chip U3 and the ground terminal of the main control chip U5 respectively.

[0042] The first output terminal of the third control chip U3 is connected to one end of the third first resistor 3R1 , and the other end of the third first resistor 3R1 is connected to the input terminal of the main control chip U5 through an acquisition bus.

[0043] The second output end of the third control chip U3 is connected to the control end of the third power-on indicator light control circuit and the control end of the third power-off indicator light control circuit respectively.

[0044] One end of the switch side of the third power-on indicator light control circuit is connected to the negative end of the third power-on indicator light, the positive end of the third power-on indicator light is connected to the power supply end VDD, and the other end of the switch side of the third power-on indicator light control circuit is connected to the ground end GND.

[0045] One end of the switch side of the third shutdown indicator light control circuit is connected to the power supply terminal VDD, the other end of the switch side of the third shutdown indicator light control circuit is connected to the positive end of the third shutdown indicator light, the negative pole of the third shutdown indicator light is connected to one end of the switch side of the main control switch circuit through the control bus, the output end of the main control chip U5 is connected to the control end of the main control switch circuit, and the other end of the switch side of the main control switch circuit is connected to the ground terminal GND.

[0046] The power supply terminal VDD is connected to the power supply terminal of the fourth control chip U4 and the power supply terminal of the main control chip U5 respectively, and the ground terminal GND is connected to the ground terminal of the fourth control chip U4 and the ground terminal of the main control chip U5 respectively.

[0047] The first output terminal of the fourth control chip U4 is connected to one end of the fourth first resistor 4R1 , and the other end of the fourth first resistor 4R1 is connected to the input terminal of the main control chip U5 through the acquisition bus.

[0048] The second output end of the fourth control chip U4 is connected to the control end of the fourth power-on indicator light control circuit and the control end of the fourth power-off indicator light control circuit respectively.

[0049] One end of the switch side of the 4th power-on indicator light control circuit is connected to the negative end of the 4th power-on indicator light, the positive end of the 4th power-on indicator light is connected to the power supply end VDD, and the other end of the switch side of the 4th power-on indicator light control circuit is connected to the ground end GND.

[0050] One end of the switch side of the 4th shutdown indicator light control circuit is connected to the power supply end VDD, the other end of the switch side of the 4th shutdown indicator light control circuit is connected to the positive end of the 4th shutdown indicator light, the negative pole of the 4th shutdown indicator light is connected to one end of the switch side of the main control switch circuit through the control bus, the output end of the main control chip U5 is connected to the control end of the main control switch circuit, and the other end of the switch side of the main control switch circuit is connected to the ground end GND.

[0051] In some further specific embodiments, the i-th power-on indicator light control circuit includes: an i-th second resistor, an i-th third resistor, an i-th fourth resistor and an i-th first MOS transistor; the drain of the i-th first MOS transistor is connected to one end of the i-th fourth resistor. The other end of the i-th fourth resistor is connected to the negative terminal of the i-th power-on indicator light, the gate of the i-th first MOS transistor is respectively connected to one end of the i-th second resistor and one end of the i-th third resistor, the source of the i-th first MOS transistor is respectively connected to the other end of the i-th third resistor and the ground terminal GND; the other end of the i-th second resistor is connected to the second output terminal of the i-th control chip.

[0052] Taking four unit control circuits as an example, in the first unit control circuit, the first power-on indicator LED1 control circuit includes: a first second resistor 1R2, a first third resistor 1R3, a first fourth resistor 1R4 and a first MOS transistor 1M1; the drain of the first first MOS transistor 1M1 is connected to one end of the first fourth resistor 1R4. The other end of the first fourth resistor 1R4 is connected to the negative end of the first power-on indicator LED1, and the gate of the first first MOS transistor 1M1 is respectively connected to one end of the first second resistor 1R2 and one end of the first third resistor 1R3. The source of the first first MOS transistor 1M1 is respectively connected to the other end of the first third resistor 1R3 and the ground terminal GND; the other end of the first second resistor 1R2 is connected to the second output end of the first control chip U1.

[0053] The first shutdown indicator LED2 control circuit includes: a first fifth resistor 1R5, a first sixth resistor 1R6, a first seventh resistor 1R7 and a first second MOS transistor 1M2. The gate of the first second MOS transistor 1M2 is respectively connected to one end of the first fifth resistor 1R5 and one end of the first sixth resistor 1R6, the other end of the first fifth resistor 1R5 is connected to the second output end of the first control chip U1, and the drain of the first second MOS transistor 1M2 is respectively connected to the other end of the first sixth resistor 1R6 and the power supply end VDD. The source of the first second MOS transistor 1M2 is connected to the positive end of the first shutdown indicator LED2, and the negative end of the first shutdown indicator LED2 is connected to one end of the first seventh resistor 1R7.

[0054] In the second unit control circuit, the second power-on indicator light control circuit includes: a second second resistor, a second third resistor, a second fourth resistor and a second first MOS tube; the drain of the second first MOS tube is connected to one end of the second fourth resistor. The other end of the second fourth resistor is connected to the negative end of the second power-on indicator light, and the gate of the second first MOS tube is respectively connected to one end of the second second resistor and one end of the second third resistor. The source of the second first MOS tube is respectively connected to the other end of the second third resistor and the ground terminal GND; the other end of the second second resistor is connected to the second output end of the second control chip U2.

[0055] The second shutdown indicator light control circuit includes: a second fifth resistor, a second sixth resistor, a second seventh resistor and a second second MOS transistor. The gate of the second second MOS transistor is respectively connected to one end of the second fifth resistor and one end of the second sixth resistor, the other end of the second fifth resistor is connected to the second output end of the second control chip U2, and the drain of the second second MOS transistor is respectively connected to the other end of the second sixth resistor and the power supply end VDD. The source of the second second MOS transistor is connected to the positive end of the second shutdown indicator light, and the negative end of the second shutdown indicator light is connected to one end of the second seventh resistor.

[0056] In the third unit control circuit, the third power-on indicator light control circuit includes: a third second resistor, a third third resistor, a third fourth resistor and a third first MOS tube; the drain of the third first MOS tube is connected to one end of the third fourth resistor. The other end of the third fourth resistor is connected to the negative end of the third power-on indicator light, and the gate of the third first MOS tube is respectively connected to one end of the third second resistor and one end of the third third resistor. The source of the third first MOS tube is respectively connected to the other end of the third third resistor and the ground terminal GND; the other end of the third second resistor is connected to the second output end of the third control chip U3.

[0057] The third shutdown indicator light control circuit includes: a third fifth resistor, a third sixth resistor, a third seventh resistor and a third second MOS transistor. The gate of the third second MOS transistor is respectively connected to one end of the third fifth resistor and one end of the third sixth resistor, the other end of the third fifth resistor is connected to the second output end of the third control chip U3, and the drain of the third second MOS transistor is respectively connected to the other end of the third sixth resistor and the power supply end VDD. The source of the third second MOS transistor is connected to the positive end of the third shutdown indicator light, and the negative end of the third shutdown indicator light is connected to one end of the third seventh resistor.

[0058] In the fourth unit control circuit, the fourth power-on indicator light control circuit includes: a fourth second resistor, a fourth third resistor, a fourth fourth resistor and a fourth first MOS tube; the drain of the fourth first MOS tube is connected to one end of the fourth fourth resistor. The other end of the fourth fourth resistor is connected to the negative terminal of the fourth power-on indicator light, and the gate of the fourth first MOS tube is respectively connected to one end of the fourth second resistor and one end of the fourth third resistor. The source of the fourth first MOS tube is respectively connected to the other end of the fourth third resistor and the ground terminal GND; the other end of the fourth second resistor is connected to the second output terminal of the fourth control chip U4.

[0059] The fourth shutdown indicator light control circuit includes: a fourth fifth resistor, a fourth sixth resistor, a fourth seventh resistor and a fourth second MOS transistor. The gate of the fourth second MOS transistor is respectively connected to one end of the fourth fifth resistor and one end of the fourth sixth resistor, the other end of the fourth fifth resistor is connected to the second output end of the fourth control chip U4, and the drain of the fourth second MOS transistor is respectively connected to the other end of the fourth sixth resistor and the power supply end VDD. The source of the fourth second MOS transistor is connected to the positive terminal of the fourth shutdown indicator light, and the negative terminal of the fourth shutdown indicator light is connected to one end of the fourth seventh resistor.

[0060] The main control switch circuit includes: an eighth resistor R8, a ninth resistor R9 and a third MOS tube M3. The gate of the third MOS tube M3 is respectively connected to one end of the eighth resistor R8 and one end of the ninth resistor R9, and the source of the third MOS tube M3 is respectively connected to the other end of the ninth resistor R9 and the ground terminal GND. The other end of the eighth resistor R8 is connected to the output end of the main control chip U5, and the drain of the third MOS tube M3 is connected to the other end of the first seventh resistor 1R7, the other end of the second seventh resistor, the other end of the third seventh resistor and the other end of the fourth seventh resistor.

[0061] The main control circuit further includes a filter capacitor C1 , one end of the filter capacitor C1 is connected to a power supply terminal VDD, and the other end of the filter capacitor C1 is connected to a ground terminal GND.

[0062] When the multi-burner stove knob control system is working, the main control chip U5 will obtain the level signal from the acquisition bus. Since the first output terminal of each control chip is connected to the acquisition bus. Therefore, the working state of the burner can be determined by the output level of the control chip at the first output terminal. Of course, this application only needs to use the level signal to determine whether there is a burner in the multi-burner stove in the on state. Therefore, for multiple burners, the control chip only needs to output a level signal (high level, low level or high impedance state). There is no need to output other complex signals.

[0063] Wherein, S100, triggering and acquiring a level signal from an acquisition bus.

[0064] S200, judging whether there is a burner in the multi-burner stove in an on state according to the level signal; S300, when it is determined that a furnace head is in the on state, outputting a first control level in the control bus to ensure that the control knob can light up its off indicator light; S400, when it is determined that no burner is in the on state, the main control chip U5 starts a preset countdown; S500, determining that the countdown is over, judging whether the level signal in the current acquisition bus has changed, and when the level signal has not changed, outputting a second control level in the control bus to turn off the shutdown indicator light of the control knob; when the level signal in the current acquisition bus has changed, returning to S200.

[0065] In some specific embodiments, the main control chip U5 responds to the high level of the acquisition bus. At this time, the level signal is a combination of a high level and a high impedance state. That is, when the i-th control knob is in the power-on state, the first output terminal of the i-th control chip outputs a high level, and when the i-th control knob is in the power-off state, the first output terminal of the i-th control chip outputs a high impedance state. Taking 4 control knobs as an example, when the first control knob is in the power-on state, the other control knobs are in the power-off state. Then the first output terminal of the first control chip U1 can output a high level, and since the other control knobs are in the power-off state, the other control chips output a high impedance state at their first output terminals. At this time, the main control chip U5 can obtain a high level signal by connecting to the acquisition node Data of the acquisition bus. The main control chip U5 determines that there is a burner in the power-on state according to the high level signal.

[0066] Of course, in some specific embodiments, the main control chip U5 can also respond to the acquisition bus with a low level. Then at this time, the level signal is a combination of a low level and a high level. That is, when the i-th control knob is in the power-on state, the first output end of the i-th control chip outputs a low level, and when the i-th control knob is in the power-off state, the first output end of the i-th control chip outputs a high level. Taking 4 control knobs as an example, when the first control knob is in the power-on state, the other control knobs are in the power-off state. Then the first output end of the first control chip U1 can output a low level, and since the other control knobs are in the power-off state, the other control chips output a high level at their first output ends. At this time, since the level signals are all in the acquisition bus, the high level is pulled down, and the overall response of the acquisition bus is a low level. At this time, the main control chip U5 can obtain a low level signal by connecting the acquisition node Data of the acquisition bus. The main control chip U5 determines that there is a burner in the power-on state according to the low level signal.

[0067] When the main control chip U5 determines that a burner is in the power-on state, the main control chip U5 will output the first control level through the control node MN1 connected to the control bus. At this time, the first control level is a high level. Under the action of the high level, the third MOS tube M3 is turned on, and then the negative end of the first shutdown indicator LED2, the negative end of the second shutdown indicator, the negative end of the third shutdown indicator, and the negative end of the fourth shutdown indicator are all connected to the ground terminal GND. Then, the first shutdown indicator LED2 is only controlled by the first control chip U1, the second shutdown indicator is only controlled by the second control chip U2, the third shutdown indicator is only controlled by the third control chip U3, and the fourth shutdown indicator is only controlled by the fourth control chip U4. This ensures that the shutdown indicator is only controlled by the state of the corresponding control knob.

[0068] When it is determined that a burner is in the on state, the main control chip U5 will not interfere with the off indicator light and the on indicator light. At this time, the indicator light of the control knob is controlled by the corresponding control chip.

[0069] In order to achieve the effect of turning off the shutdown indicator lights of multiple burners uniformly. To improve the uniformity of the indicator lights of multiple burners. Therefore, the main control chip U5 will establish a countdown. When the countdown ends, if it is determined that multiple burners are in the shutdown state. Then, the main control chip U5 will output the second control level through the control node MN1, and the second control level at this time is a low level. Under the action of the low level, the third MOS tube M3 is turned off. At this time, the first shutdown indicator LED2, the second shutdown indicator, the third shutdown indicator and the fourth shutdown indicator are all turned off. The effect of turning off the shutdown indicator lights uniformly is completed.

[0070] The present invention acquires a level signal through an acquisition bus, and uses the level signal to determine whether a multi-burner stove is turned on or off. Thus, the shutdown indicator light is uniformly controlled according to the power on or off, and the shutdown indicator light is uniformly turned off. The interactivity between stoves is improved.

[0071] In some further specific embodiments, the main control chip U5 is a single chip microcomputer.

[0072] In some further specific embodiments, the i-th shutdown indicator light is a white light LED lamp bead, and the i-th startup indicator light is a red light LED lamp bead.

[0073] On the other hand, the present application also provides a multi-burner stove, which is integrated with a multi-burner stove knob control system described in any one of the above-mentioned specific embodiments.

[0074] On the other hand, a computer-readable storage medium is provided, in which a program executable by a processor is stored. When the program executable by the processor is executed by the processor, it is used to implement a multi-burner stove knob control method as described in any one of the above-mentioned specific embodiments.

[0075] An embodiment of the present application also discloses a computer program product, including a computer program or computer instructions, wherein the computer program or computer instructions are stored in a computer-readable storage medium, a processor of a computer device reads the computer program or computer instructions from the computer-readable storage medium, and the processor executes the computer program or computer instructions, so that the computer device executes a multi-head stove knob control method as described in any of the previous embodiments.

[0076] The terms "first", "second", "third", "fourth", etc. (if any) in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0077] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0078] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0079] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0080] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0081] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, referred to as ROM), random access memory (Random Access Memory, referred to as RAM), disk or optical disk and other media that can store program codes.

[0082] Although the description of the present application has been quite detailed and specifically describes several described embodiments, it is not intended to be limited to any of these details or embodiments or any particular embodiment, but should be regarded as providing a broad possible interpretation of these claims by reference to the attached claims, taking into account the prior art, so as to effectively cover the intended scope of the present application. In addition, the above description of the present application is based on the embodiments foreseeable by the inventor, and its purpose is to provide a useful description, and those non-substantial changes to the present application that have not yet been foreseen may still represent equivalent changes to the present application.

Claims

1. A method for controlling a multi-burner stove knob, characterized in that: include: Step 1, trigger and obtain level signal from acquisition bus; Step 2, judging whether there is a burner in the multi-burner stove in an on state according to the level signal; Step 3: When it is determined that a furnace head is in the on state, a first control level is output in the control bus to ensure that the control knob can light up its off indicator light; Step 4: When it is determined that no burner is in the on state, the preset countdown is started; Step 5, determine that the countdown is over, and determine whether the level signal in the current acquisition bus has changed. When the level signal has not changed, the second control level is output in the control bus to turn off the shutdown indicator light of the control knob; when the level signal in the current acquisition bus changes, return to step 2.

2. A multi-burner stove knob control system, characterized in that: include: Main control circuit, power supply terminal, ground terminal, acquisition bus, control bus and several unit control circuits; A unit control circuit is provided on a control knob; The main control circuit includes: a main control chip and a main control switch circuit; the i-th unit control circuit includes: an i-th control chip, an i-th first resistor, an i-th power-on indicator light control circuit, an i-th power-off indicator light control circuit, an i-th power-on indicator light and an i-th power-off indicator light; The power supply terminal VDD is connected to the power supply terminal of the i-th control chip and the power supply terminal of the main control chip respectively, and the ground terminal is connected to the ground terminal of the i-th control chip and the ground terminal of the main control chip respectively; The first output terminal of the i-th control chip is connected to one end of the i-th first resistor, and the other end of the i-th first resistor is connected to the input terminal of the main control chip through the acquisition bus; The second output end of the i-th control chip is connected to the control end of the i-th power-on indicator light control circuit and the control end of the i-th power-off indicator light control circuit respectively; One end of the switch side of the i-th power-on indicator light control circuit is connected to the negative end of the i-th power-on indicator light, the positive end of the i-th power-on indicator light is connected to the power supply end, and the other end of the switch side of the i-th power-on indicator light control circuit is connected to the ground end; One end of the switch side of the i-th shutdown indicator light control circuit is connected to the power supply end, the other end of the switch side of the i-th shutdown indicator light control circuit is connected to the positive end of the i-th shutdown indicator light, the negative pole of the i-th shutdown indicator light is connected to one end of the switch side of the main control switch circuit through a control bus, the output end of the main control chip is connected to the control end of the main control switch circuit, and the other end of the switch side of the main control switch circuit is connected to the ground end; wherein, i=1,2,…,n; n represents the number of unit control circuits, n is a positive integer, and n is greater than or equal to 2.

3. A multi-burner stove knob control system according to claim 2, characterized in that: The i-th power-on indicator light control circuit comprises: an i-th second resistor, an i-th third resistor, an i-th fourth resistor and an i-th first MOS tube; The drain of the i-th first MOS tube is connected to one end of the i-th fourth resistor, and the other end of the i-th fourth resistor is connected to the negative end of the i-th power-on indicator light. The gate of the i-th first MOS tube is respectively connected to one end of the i-th second resistor and one end of the i-th third resistor, and the source of the i-th first MOS tube is respectively connected to the other end of the i-th third resistor and the ground terminal GND; the other end of the i-th second resistor is connected to the second output end of the i-th control chip.

4. A multi-burner stove knob control system according to claim 2, characterized in that: The i-th shutdown indicator light control circuit comprises: an i-th fifth resistor, an i-th sixth resistor, an i-th seventh resistor and an i-th second MOS tube; The gate of the i-th second MOS transistor is respectively connected to one end of the i-th fifth resistor and one end of the i-th sixth resistor, the other end of the i-th fifth resistor is connected to the second output end of the i-th control chip, and the drain of the i-th second MOS transistor is respectively connected to the other end of the i-th sixth resistor and the power supply terminal VDD; The source of the i-th second MOS tube is connected to the positive terminal of the i-th shutdown indicator light, and the negative terminal of the i-th shutdown indicator light is connected to one end of the i-th seventh resistor.

5. A multi-burner stove knob control system according to claim 4, characterized in that: The main control switch circuit comprises: an eighth resistor, a ninth resistor and a third MOS tube; The gate of the third MOS tube is respectively connected to one end of the eighth resistor and one end of the ninth resistor, and the source of the third MOS tube is respectively connected to the other end of the ninth resistor and the ground end; The other end of the eighth resistor is connected to the output end of the main control chip, and the drain of the third MOS tube is connected to the other end of the i-th seventh resistor.

6. A multi-burner stove knob control system according to claim 2, characterized in that: The main control circuit further comprises a filter capacitor, one end of which is connected to the power supply end, and the other end of which is connected to the ground end.

7. The multi-burner stove knob control system according to claim 2, characterized in that: The main control chip is a single chip microcomputer.

8. The multi-burner stove knob control system according to claim 2, characterized in that: The i-th shutdown indicator light is a white light LED lamp bead.

9. The multi-burner stove knob control system according to claim 2, characterized in that: The i-th power-on indicator light is a red LED lamp bead.

10. A multi-burner stove, characterized in that: A multi-burner stove knob control system according to any one of claims 2 to 9 is integrated.

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