CN218449916U - Air curtain machine control system based on air valve response - Google Patents
Air curtain machine control system based on air valve response Download PDFInfo
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- CN218449916U CN218449916U CN202222145832.5U CN202222145832U CN218449916U CN 218449916 U CN218449916 U CN 218449916U CN 202222145832 U CN202222145832 U CN 202222145832U CN 218449916 U CN218449916 U CN 218449916U
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Abstract
The utility model discloses an air curtain machine control system based on blast gate response, include: the control device is provided with a control unit, a door magnetic switch and a power key, the door magnetic switch is connected with an air valve of the air curtain machine, the control unit is provided with a first IO port to a third IO port, the control unit controls a motor of the air curtain machine by configuring the first IO port into an output mode, and the second IO port and the third IO port are configured into an input mode to detect states of the door magnetic switch and the power key; when the control unit is powered on, the control unit enters a standby state, and when the door magnetic switch is closed in the standby state, the control unit outputs a pulse signal with zero duty ratio to the air curtain machine. This application realizes the response effect to the blast gate of air curtain machine through the door magnetic switch, and when the blast gate trouble was closed, control system output low level was to the motor, made the stop work of air curtain machine, avoided appearing the blast gate trouble closed and the phenomenon of air curtain machine continuous output air current, has effectively reduced the waste of electric power resource, has improved the utilization ratio of resources of air curtain machine.
Description
Technical Field
The utility model relates to an air curtain machine control technical field, in particular to air curtain machine control system based on blast gate response.
Background
The air curtain machine drives a through-flow or centrifugal wind wheel to generate strong airflow through a high-speed motor, the air curtain machine adjusts the speed of the output airflow by adjusting the rotating speed of the motor, the angle of the output airflow of the air curtain machine can be adjusted by rotating air valve blades on the air outlet, and when the air curtain machine is not used, the air valve blades are closed to cover the air outlet. The air current of air curtain machine output forms one side "intangible door curtain", divides into two independent temperature areas with indoor outer the room and creates comfortable indoor environment, keeps indoor air conditioner and the effect of purifying room air, when saving the electric energy to make air cycle, can effectual isolation dust, flue gas, foul smell, insect and microorganism etc..
Current air curtain machine is not provided with the function of blast gate blade response, whether the blast gate blade of air curtain machine during operation can't respond to its blast gate blade and open, when the blast gate blade trouble of air curtain machine, the air current of air curtain machine through its air outlet output is blockked by the blast gate blade, the air curtain machine can't blow off the air current outside the organism, wait until the user discovers that the blast gate blade does not open just can open the blast gate blade, the air curtain machine could blow off the air current outside the organism this moment, the waste of electric power resource has been caused to this kind of condition, the utilization ratio of resources of air curtain machine has still been reduced simultaneously, the use that has caused the user is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an air curtain machine control system based on blast gate response to solve one or more technical problem that exist among the prior art, provide a profitable selection or create the condition at least.
The utility model provides a solution of its technical problem is: the utility model provides an air curtain machine control system based on blast gate response, includes: the control device is internally provided with a control unit and a door magnetic switch, a power key is arranged on the surface of the control device, a first interface is arranged on the side surface of the control device and used for being connected with a motor of an air curtain machine, the control unit is respectively connected with the first interface and the door magnetic switch, a first driving end of the door magnetic switch is used for being connected with an air valve of the air curtain machine, and when the air valve is closed, the door magnetic switch is closed;
the control unit is provided with a first IO port, a second IO port and a third IO port, the first IO port is connected with the first interface, the second IO port is connected with a second driving end of the door magnetic switch, the third IO port is connected with one end of the power key, the other end of the power key is grounded, the control unit controls a motor of the air curtain machine by configuring the first IO port into an output mode, and the control unit also detects a closed state of the door magnetic switch and a condition that the power key is pressed by configuring the second IO port and the third IO port into an input mode;
the control unit is configured to be powered on and then enter a standby state, the standby state is defined as the control unit not outputting a pulse width modulation signal to a motor of the air curtain machine, and the control unit is further configured to be in the standby state, when the door magnetic switch is closed, the control unit outputs a pulse width modulation signal with a zero duty ratio to the motor of the air curtain machine.
Further, a high wind speed key and a low wind speed key are arranged on the surface of the control device, the working states of the air curtain machine comprise a high wind speed state and a low wind speed state, the high wind speed key is used for adjusting the working state of the air curtain machine to the high wind speed state, and the low wind speed key is used for adjusting the working state of the air curtain machine to the low wind speed state;
the control unit is further provided with a fourth IO port and a fifth IO port, the fourth IO port is connected with one end of the high wind speed key, the fifth IO port is connected with one end of the low wind speed key, the other ends of the high wind speed key and the low wind speed key are grounded, and the control unit is used for detecting the pressing condition of the high wind speed key and the low wind speed key by configuring the fourth IO port and the fifth IO port into a detection mode;
the control unit is also used for adjusting the duty ratio of a pulse width modulation signal output to a motor of the air curtain machine according to the pressing condition of the high wind speed key and the low wind speed key.
Further, a first status indicator lamp and a second status indicator lamp are arranged on the surface of the control device, the control unit is provided with a sixth IO port and a seventh IO port, the sixth IO port is connected with a cathode of the first status indicator lamp, the seventh IO port is connected with a cathode of the second status indicator lamp, anodes of the first status indicator lamp and the second status indicator lamp are both connected with a power supply voltage, and the control unit controls the first status indicator lamp and the second status indicator lamp by configuring the sixth IO port and the seventh IO port to be in an output mode; the first status indicator light is a red light emitting diode, and the second status indicator light is a green light emitting diode.
Further, still install the bee calling organ module in the controlling means, the bee calling organ module includes second triode and bee calling organ, the control unit still is provided with eighth IO mouth, the eighth IO mouth with the base of second triode is connected, the projecting pole ground connection of second triode, the collecting electrode of second triode with the first drive end of bee calling organ is connected, the second drive end of bee calling organ is connected with supply voltage, the control unit through with eighth IO mouth configuration is right in order to export the mode bee calling organ controls.
Further, the method also comprises the following steps: the remote controller is connected with the control device in an infrared communication mode, an infrared sending module and an infrared control unit are arranged in the remote controller, the infrared control unit is connected with the infrared sending module, a remote control power key, a remote control high wind key and a remote control low wind key are arranged on the surface of the remote controller, the remote control high wind key is used for adjusting the working state of the air curtain machine to be in a high wind speed state, the remote control low wind key is used for adjusting the working state of the air curtain machine to be in a low wind speed state, the remote control power key is used for opening and closing the air curtain machine, the remote control power key, the remote control low wind key and the remote control high wind key are all connected with the infrared control unit, the infrared control unit is used for detecting the pressing condition of the remote control power key, the remote control low wind key and the remote control high wind key and controlling the infrared sending module according to the pressing condition of the remote control power key, the remote control low wind key and the remote control high wind key, and the infrared sending module is used for sending infrared signals to the control device.
Further, still install infrared receiving chip in the controlling means, infrared receiving chip pass through the mode of infrared communication with infrared sending module connects, infrared receiving chip is used for receiving and comes from the infrared signal of remote controller, the control unit still is provided with the ninth IO mouth, the ninth IO mouth with infrared receiving chip connects, the control unit is through inciting somebody to action ninth IO mouth configuration is input mode in order to acquire the infrared signal of infrared receiving chip, the control unit still is used for the basis the duty cycle of the pulse width modulation signal of the motor of infrared signal regulation output to air curtain machine.
Further, the signal of the infrared receiving chip is IRM0038X.
Further, the control unit is an M8P625-SOP16 based control system.
The utility model has the advantages that: the utility model provides an air curtain machine control system based on blast gate response, includes: the control device is internally provided with a control unit and a door magnetic switch, a power key is arranged on the surface of the control device, a first interface is arranged on the side surface of the control device and used for being connected with a motor of the air curtain machine, a first driving end of the door magnetic switch is used for being connected with an air valve of the air curtain machine, and the door magnetic switch is closed when the air valve is closed; the control unit is provided with a first IO port, a second IO port and a third IO port, the first IO port is connected with the first interface, the second IO port is connected with the second driving end of the door magnetic switch, the third IO port is connected with one end of the power key, the other end of the power key is grounded, the control unit controls a motor of the air curtain machine by configuring the first IO port into an output mode, and the control unit also detects the closed state of the door magnetic switch and the condition that the power key is pressed down by configuring the second IO port and the third IO port into an input mode; the control unit is configured to be powered on and then enter a standby state, the standby state is defined as that the control unit does not output the pulse width modulation signal to the motor of the air curtain machine, and the control unit is also configured to be switched on when the door magnet switch is switched on and then output the pulse width modulation signal with zero duty ratio to the motor of the air curtain machine in the standby state. The application provides an air curtain machine control system based on air valve response realizes the response effect to the air valve of air curtain machine through the door magnetic switch, when the air valve trouble of air curtain machine was closed, air curtain machine control system based on air valve response exports low level to the motor of air curtain machine so that the air curtain machine stop work, avoid appearing the phenomenon that the air valve trouble is closed and the air curtain machine lasts the output air current, the waste of electric power resource has been reduced effectively, the resource utilization of air curtain machine has been improved effectively, bring the convenience of use for the user.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art, without inventive effort, can also derive other designs and figures from them.
FIG. 1 is a schematic structural diagram of a control device of an air curtain machine control system based on air valve induction;
FIG. 2 is a general circuit diagram of an air curtain control system based on air valve sensing;
fig. 3 is a schematic structural diagram of a remote controller of an air curtain machine control system based on air valve induction.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It is noted that while a division of functional blocks is depicted in the system diagram, and logical order is depicted in the flowchart, in some cases the steps depicted and described may be performed in a different order than the division of blocks in the system or the flowchart. The terms first, second and the like in the description and in the claims, and the drawings described above, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
An embodiment of the present application discloses an air curtain machine control system based on air valve induction, please refer to fig. 1 to 3, an air curtain machine control system based on air valve induction includes: control device 100, install control unit U1 and door magnetic switch U2 in the control device 100, the surface of control device 100 is provided with power key 110, the side of control device 100 is provided with first interface 300, first interface 300 is used for being connected with the motor of air curtain machine, control unit U1 is connected with first interface 300 and door magnetic switch U2 respectively, the first drive end of door magnetic switch U2 is used for being connected with the blast gate of air curtain machine, door magnetic switch U2 is used for responding to the state of blast gate, when the blast gate is closed door magnetic switch U2 closes thereupon, when the blast gate is opened door magnetic switch U2 opens thereupon. The control unit U1 is provided with a first IO port PD1, a second IO port PD2 and a third IO port PD3, the first IO port PD1 is connected with the first interface 300 through a first triode Q1, the base of the first triode Q1 is connected with the first IO port PD1, the emitter of the first triode Q1 is grounded, the collector of the first triode Q1 is connected with the first interface 300, the second IO port PD2 is connected with the second driving end of the door magnetic switch U2, the third IO port PD3 is connected with one end of the power key 110, the other end of the power key 110 is grounded, and the power key 110 is used for opening and closing the air curtain machine; the control unit U1 controls the motor of the air curtain machine by configuring the first IO port PD1 to be in an output mode, and the control unit U1 also detects the closed state of the door magnetic switch U2 and the condition that the power key 110 is pressed by configuring the second IO port PD2 and the third IO port PD3 to be in an input mode.
Further, the control unit U1 is configured to be powered on and then enter a standby state, where the standby state is defined as that the control unit U1 does not output a pulse signal to the motor of the air curtain machine, and the control unit U1 is further configured to be powered off when the gate switch U2 is in the standby state and then output a pulse width modulation signal with a non-zero duty ratio to the motor of the air curtain machine. Specifically, when the power key 110 is pressed and the door switch U2 is closed, the control unit U1 outputs a pulse width modulation signal with a zero duty ratio to the motor of the air curtain machine, and when the power key 110 is pressed and the door switch U2 is opened, the control unit U1 outputs a pulse width modulation signal with a non-zero duty ratio to the motor of the air curtain machine.
In this embodiment, door magnetic switch U2 is connected with the blast gate of air curtain machine, and door magnetic switch U2 has played the response whether the blast gate is closed state, and the blast gate of air curtain machine is not opened when the air curtain machine is opened, and door magnetic switch U2 is along with closed after the blast gate is closed, and control unit U1 detects door magnetic switch U2 through its second IO mouth PD2 and is closed, and control unit U1 is through the motor of its first IO mouth PD1 output duty cycle to the air curtain machine for the pulse width modulation signal of zero, makes the motor rotational speed of air curtain machine be zero, and the air curtain machine does not output the air current. When the air curtain machine is started, the air valve of the air curtain machine is also opened, the door magnetic switch U2 is disconnected after the air valve is opened, the control unit U1 detects that the door magnetic switch U2 is disconnected through the second IO port PD2 of the control unit U1, the control unit U1 outputs a pulse width modulation signal with the duty ratio not equal to zero to the motor of the air curtain machine through the first IO port PD1 of the control unit U1, and the air curtain machine normally works and outputs air flow at the moment.
According to the air curtain machine induction device, the induction effect on the air valve of the air curtain machine is achieved through the door magnetic switch U2, when the air valve is not opened, the control device 100 controls the motor of the air curtain machine not to rotate, and the air curtain machine does not output air flow; when the air valve is opened, the motor of the air curtain machine is controlled to rotate by the control device 100, the air curtain machine outputs air flow, the air curtain machine control system based on air valve induction is provided with the function of air valve induction, when the air curtain machine works, the air curtain machine control system can induce whether the air valve of the air curtain machine is opened or not, when the air valve fault of the air curtain machine is closed, the air curtain machine control system outputs low level to the motor of the air curtain machine so as to stop the air curtain machine, the phenomenon that the air valve fault is closed and the air curtain machine continuously outputs air flow is avoided, the waste of power resources is effectively reduced, the resource utilization rate of the air curtain machine is effectively improved, and the use convenience is brought for a user.
Further, a high wind speed key 120 and a low wind speed key 130 are disposed on the surface of the control device 100, the operating states of the air curtain machine include a high wind speed state and a low wind speed state, the air curtain machine outputs an air flow when in the high wind speed state and the wind speed of the air flow output by the air curtain machine is high, the air curtain machine outputs an air flow when in the low wind speed state and the wind speed of the air flow output by the air curtain machine is low, the high wind speed key 120 is used for adjusting the operating state of the air curtain machine to the high wind speed state, the low wind speed key 130 is used for adjusting the operating state of the air curtain machine to the low wind speed state, and the control unit U1 is further used for adjusting the duty ratio of the pulse width modulation signal output to the motor of the air curtain machine according to the pressing condition of the high wind speed key 120 and the low wind speed key 130.
It should be noted that the wind speed of the airflow output by the air curtain machine can be set according to actual conditions, and there is no limitation on the wind speed of the airflow output by the air curtain machine when the air curtain machine is in a high wind speed state and when the air curtain machine is in a low wind speed state, but the wind speed of the airflow output by the air curtain machine when the air curtain machine is in the low wind speed state is less than the wind speed of the airflow output by the air curtain machine when the air curtain machine is in the high wind speed state.
Furthermore, the control unit U1 is further provided with a fourth IO port PD4 and a fifth IO port PD5, the fourth IO port PD4 is connected to one end of the high wind speed key 120, the fifth IO port PD5 is connected to one end of the low wind speed key 130, the other ends of the high wind speed key 120 and the low wind speed key 130 are both grounded, and the control unit U1 configures the fourth IO port PD4 and the fifth IO port PD5 into a detection mode to detect the pressing condition of the high wind speed key 120 and the low wind speed key 130.
In this embodiment, the wind speed of the wind curtain machine is determined by the rotation speed of the motor, and the rotation speed of the motor is determined by the duty ratio of the pulse width modulation signal input to the motor. In this embodiment, when the high wind speed key 120 is pressed, the control unit U1 outputs a duty ratio of a pwm signal to the motor of the air curtain machine to be 100%, and the air curtain machine is adjusted to the high wind speed state. When the low wind speed key 130 is pressed, the duty ratio of the pulse width modulation signal output by the control unit U1 to the motor of the air curtain machine is 30%, and at this time, the air curtain machine is adjusted to the low wind speed state. Specifically, when neither the high wind speed key 120 nor the low wind speed key 130 is pressed, the control unit U1 outputs the duty ratio of the pulse width modulation signal to the motor of the air curtain machine to be 0%, that is, the pulse width modulation signal is at the low level.
It should be noted that, it is prior art to control the rotation speed of the motor by adjusting the duty ratio of the pwm signal, and the detailed description thereof is omitted here.
Further, a first status indicator lamp 140 and a second status indicator lamp 150 are disposed on the surface of the control device 100, the first status indicator lamp 140 is a red light emitting diode, the second status indicator lamp 150 is a green light emitting diode, and the control unit U1 is further configured to control the first status indicator lamp 140 and the second status indicator lamp 150 according to the condition that the high wind speed key 120 and the low wind speed key 130 are pressed.
Furthermore, the control unit U1 is further provided with a sixth IO port PD6 and a seventh IO port PD7, the sixth IO port PD6 is connected to the cathode of the first status indicator lamp 140, the seventh IO port PD7 is connected to the cathode of the second status indicator lamp 150, the anodes of the first status indicator lamp 140 and the second status indicator lamp 150 are both connected to the power supply voltage, and the control unit U1 controls the first status indicator lamp 140 and the second status indicator lamp 150 by configuring the sixth IO port PD6 and the seventh IO port PD7 into the output mode.
Furthermore, a first resistor R1 is connected in series between the first status indicator lamp 140 and the sixth IO port PD6, a second resistor is connected in series between the second status indicator lamp 150 and the seventh IO port PD7, and both the first resistor R1 and the second resistor are used for limiting the current flowing into the status indicator lamp, so as to avoid that the instantaneous current flowing into the status indicator lamp is too large to burn out the status indicator lamp.
Please refer to tables 1 and 2, where table 1 is a working state table of the air curtain machine, the door switch, the first status indicator lamp and the second status indicator lamp, table 2 is a working state table of the control device, the door switch, the first status indicator lamp and the second status indicator lamp, and the working principle of the first status indicator lamp and the second status indicator lamp is explained with reference to tables 1 and 2.
TABLE 1
TABLE 2
| Condition of control unit | Door magnetic switch U2 | First status indicator light | Second status indicator light |
| Standby state | Disconnect | Flashing | Extinguishment of |
| Standby state | Closure is provided | Extinguishment of | Flashing |
In an embodiment, when the air valve of the air curtain machine is closed, the magnetic door switch U2 is closed along with the closing of the air valve, the control unit U1 detects the closing of the magnetic door switch U2 through the second IO port PD2, and then the control unit U1 outputs a high level signal to the first status indicator lamp 140 through the sixth IO port PD6, at this time, the first status indicator lamp 140 is turned off, and meanwhile, the control unit U1 intermittently outputs a high level signal and a low level signal to the second status indicator lamp 150 through the seventh IO port PD7, and the second status indicator lamp 150 flashes. The control unit U1 controls the first status indicator lamp 140 to be turned off and the second status indicator lamp 150 to flicker until the magnetic door switch U2 is detected to be turned off, so that the effect of prompting the user of the fault closing of the air valve is achieved, the user can timely find that the air valve is not automatically opened, and the waste of power resources is reduced.
It should be noted that the intermittent output means that the control unit U1 outputs a high level signal to the status indicator lamp for a time period t1, then outputs a low level signal to the status indicator lamp for a time period t2, and then outputs a high level signal to the status indicator lamp for a time period t1, and so on.
Preferably, the time period t1 and the time period t2 are both 0.5 second.
In another embodiment, when the air valve of the air curtain machine is opened, the magnetic door switch U2 is turned off along with the opening of the air valve, the control unit U1 detects that the magnetic door switch U2 is turned off through the second IO port PD2, and the control unit U1 controls the first status indicator lamp 140 and the second status indicator lamp 150 to operate according to the condition that the high wind speed key 120 and the low wind speed key 130 are pressed.
Specifically, when the high wind speed key 120 is pressed, the wind curtain machine is in a high wind speed state, at this time, the sixth IO port PD6 outputs a low level signal to the first status indicator lamp 140, the seventh IO port PD7 outputs a high level signal to the second status indicator lamp 150, the first status indicator lamp 140 is turned on, and the second status indicator lamp 150 is turned off, so as to prompt the user that the wind curtain machine is in the high wind speed state;
when the low wind speed key 130 is pressed, the wind curtain machine is in a low wind speed state, at this time, the sixth IO port PD6 outputs a high level signal to the first status indicator lamp 140, the seventh IO port PD7 outputs a low level signal to the second status indicator lamp 150, the first status indicator lamp 140 is turned off, and the second status indicator lamp 150 is turned on, so as to prompt a user that the wind curtain machine is in a low wind speed state.
In another embodiment, when the control device 100 is just powered on, the control unit U1 is in a standby state, when the air valve of the air curtain machine is turned on, the control unit U1 detects that the door switch U2 is turned off through the second IO port PD2, at this time, the seventh IO port PD7 outputs a high level signal to the second status indicator lamp 150, the sixth IO port PD6 intermittently outputs a high level signal and a low level signal to the first status indicator lamp 140, the first status indicator lamp 140 flashes, and the second status indicator lamp 150 is turned off, so as to prompt the user that the air valve of the air curtain machine is turned on.
When the control device 100 is just powered on, the control unit U1 is in a standby state, when the air valve of the air curtain machine is closed, the control unit U1 detects that the magnetic door switch U2 is closed through the second IO port PD2, at this time, the sixth IO port PD6 outputs a high level to the first status indicator lamp 140, the seventh IO port PD7 intermittently outputs a high level signal and a low level signal to the second status indicator lamp 150, the first status indicator lamp 140 is turned off, and the second status indicator lamp 150 flickers to prompt a user that the air valve of the air curtain machine is closed.
Further, a buzzer module 160 is further installed in the control device 100, the buzzer module 160 includes a second triode Q2, a buzzer BUZZ, a third resistor R3 and a fourth resistor R4, the control unit U1 is further provided with an eighth IO port PB1, the eighth IO port PB1 is connected with a base of the second triode Q2 through the third resistor R3, an emitter of the second triode Q2 is grounded, a collector of the second triode Q2 is connected with a first driving end of the buzzer BUZZ through the fourth resistor R4, and a second driving end of the buzzer BUZZ is connected with a power supply voltage; the control unit U1 controls the buzzer BUZZ by configuring the eighth IO port PB1 to the output mode.
In this embodiment, the buzzer BUZZ is an active buzzer BUZZ, the second driving terminal of the active buzzer BUZZ is connected to the power supply voltage and continuously maintains a high level, and the buzzer BUZZ will sound only when the first driving terminal of the active buzzer BUZZ is at a low level. When the eighth IO port PB1 outputs a high level signal, the second triode Q2 is turned on, and at this time, the first driving end of the buzzer BUZZ is at a high level, and the buzzer BUZZ does not work; when the eighth IO port PB1 outputs a low level signal, the second triode Q2 is turned off, and at this time, the first driving end of the buzzer BUZZ is at a low level, and the buzzer BUZZ works to sound.
Further, the air curtain machine control system further comprises a remote controller 200, the remote controller 200 is connected with the control device 100 in an infrared communication mode, an infrared sending module and an infrared control unit U1 are arranged in the remote controller 200, and the infrared control unit U1 is connected with the infrared sending module.
Further, a remote control power key 210, a remote control high wind key 220 and a remote control low wind key 230 are arranged on the surface of the remote controller 200, the remote control high wind key 220 is used for adjusting the working state of the air curtain machine to be in a high wind speed state, the remote control low wind key 230 is used for adjusting the working state of the air curtain machine to be in a low wind speed state, the remote control power key 210 is used for starting and closing the air curtain machine, the remote control power key 210, the remote control low wind key 230 and the remote control high wind key 220 are all connected with an infrared control unit U1, the infrared control unit U1 is used for detecting the pressing condition of the remote control power key 210, the remote control low wind key 230 and the remote control high wind key 220 and controlling an infrared transmitting module according to the pressing condition of the remote control power key 210, the remote control low wind key 230 and the remote control high wind key 220, and the infrared transmitting module is used for transmitting an infrared signal to the control device 100.
Furthermore, an infrared receiving chip U3 is further installed in the control device 100, the infrared receiving chip U3 is connected with the infrared transmitting module in an infrared communication manner, the infrared receiving chip U3 is used for receiving an infrared signal from the remote controller 200, the control unit U1 is further provided with a ninth IO port PB2, the ninth IO port PB2 is connected with the infrared receiving chip U3, and the control unit U1 configures the ninth IO port PB2 into an input mode to acquire an infrared signal of the infrared receiving chip U3; the control unit U1 is further configured to adjust a duty ratio of a pulse width modulation signal output to a motor of the air curtain machine according to the infrared signal.
In this embodiment, the user can carry out remote control to the air curtain machine through remote controller 200, and remote controller 200 outputs corresponding infrared signal to control unit U1, and control unit U1 is according to the work of received infrared signal control air curtain machine, and the user need not to walk near the air curtain machine and can realize the control to the air curtain machine, and remote controller 200's setting has made things convenient for user's use, has improved user's use experience.
In this embodiment, the model of the infrared receiving chip U3 is IRM0038X.
It should be noted that, remote control low wind key 230 of remote controller 200 corresponds to low wind speed key 130 of control apparatus 100, remote control high wind key 220 of remote controller 200 corresponds to high wind speed key 120 of control apparatus 100, and remote control power key 210 of remote controller 200 corresponds to power key 110 of control apparatus 100, that is, pressing remote control low wind key 230 of remote controller 200 is equivalent to pressing low wind speed key 130 of control apparatus 100, pressing remote control high wind key 220 of remote controller 200 is equivalent to pressing high wind speed key 120 of control apparatus 100, and pressing remote control power key 210 of remote controller 200 is equivalent to pressing power key 110 of control apparatus 100.
Further, the side of control device 100 still is equipped with second interface 400, and control unit U1 still is equipped with tenth IO mouth PB3, and second interface 400 is connected with tenth IO mouth PB3, and second interface 400 is used for being connected with the motor of air curtain machine, and control unit U1 is through configuring tenth IO mouth PB3 into the detection mode with the motor that detects the air curtain machine whether open.
Further, a third interface 500 and a fourth interface 600 are further disposed on a side surface of the control device 100, where the third interface 500 is used for connecting with a power supply, and the fourth interface 600 is used for grounding.
The present application further illustrates and explains the working principle of an air curtain machine control system based on air valve sensing through the following embodiments.
In an embodiment, an air curtain machine control system based on air valve induction is powered on, a control unit U1 controls a buzzer BUZZ to make a sound, after five seconds from zero, the control unit U1 enters a standby state, the control unit U1 detects a closed state of a door magnetic switch U2 through a second IO port PD2 of the control unit U1, when the door magnetic switch U2 is disconnected, namely, an air valve of the air curtain machine is turned on, the control unit U1 intermittently outputs a level signal to a first state indicator lamp 140 through a fifth IO port PD5 of the control unit U1 and outputs a high level signal to a second state indicator lamp 150 through a sixth IO port PD6 of the control unit U1, at this time, the first state indicator lamp 140 flickers, and the second state indicator lamp 150 is turned off to prompt a user that the air valve is turned on and the air curtain machine control system is in the standby state.
After the power key 110 is pressed down, the control unit U1 outputs a pulse width modulation signal with a duty ratio of 30% to a motor of the air curtain machine through the first IO port PD1, and the air curtain machine is in a low wind speed state and blows out an air flow; meanwhile, the control unit U1 outputs a high level signal to the first status indicator lamp 140 through the fifth IO port PD5 and outputs a low level signal to the second status indicator lamp 150 through the sixth IO port PD6, at this time, the first status indicator lamp 140 is turned off and the second status indicator lamp 150 is turned on, so as to indicate that the air curtain machine operates in a low wind speed state.
In the process that the air curtain machine operates in a low-wind-speed state, a high-wind-speed key 120 of the control device 100 is pressed, after the control unit U1 detects that the high-wind-speed key 120 is pressed through a third IO port PD3 of the control unit U1, a pulse width modulation signal with the duty ratio of 100% is output to a motor of the air curtain machine through a first IO port PD1 of the control unit U, the air curtain machine is in the high-wind-speed state, and the air curtain machine blows air flow; meanwhile, the control unit U1 outputs a low level signal to the first status indicator lamp 140 through the fifth IO port PD5 and outputs a high level signal to the second status indicator lamp 150 through the sixth IO port PD6, at this time, the first status indicator lamp 140 is turned on and the second status indicator lamp 150 is turned off, so that the air curtain machine operates in a high wind speed state.
In the process that the air curtain machine operates in the high-wind-speed state, the low-wind-speed key 130 of the control device 100 is pressed, after the control unit U1 detects that the low-wind-speed key 130 is pressed through the fourth IO port PD4, a pulse width modulation signal with a duty ratio of 30% is output to a motor of the air curtain machine through the first IO port PD1, the air curtain machine is in the low-wind-speed state, and the air curtain machine blows air flow; meanwhile, the control unit U1 outputs a high level signal to the first status indicator lamp 140 through the fifth IO port PD5 and outputs a low level signal to the second status indicator lamp 150 through the sixth IO port PD6, at this time, the first status indicator lamp 140 is turned off and the second status indicator lamp 150 is turned on, so as to indicate that the air curtain machine operates in a low wind speed state.
Particularly, in the process that the air curtain machine operates in a high wind speed state or a low wind speed state, if the door magnetic switch U2 is closed and then is opened again, the operation state of the air curtain machine before the door magnetic switch U2 is closed is recovered after 0.3 second delay.
When the air curtain machine is switched from the high wind speed state to the low wind speed state or from the low wind speed state to the high wind speed state, the pulse width modulation signal output by the control unit U1 through the first IO port PD1 thereof gradually rises to the target value according to the first slope and gradually falls to the target value according to the second slope.
In another embodiment, when the control unit U1 is in the standby state, the control unit U1 detects the closed state of the magnetic door switch U2 through the second IO port PD2, when the magnetic door switch U2 is closed, that is, the air valve of the air curtain is closed, after one second, the control unit U1 intermittently outputs a level signal to the second status indicator lamp 150 through the sixth IO port PD6 and outputs a high level signal to the first status indicator lamp 140 through the fifth IO port PD5, at this time, the first status indicator lamp 140 is turned off and the second status indicator lamp 150 flashes to prompt the user that the air valve is closed and the air curtain control system is in the standby state. When the power key 110 is pressed down, the control unit U1 outputs a pulse width modulation signal with a duty ratio of 0 to a motor of the air curtain machine through the first IO port PD1, and the air curtain machine does not work; meanwhile, the control unit U1 controls the buzzer BUZZ to emit a short sound.
In another embodiment, during the operation of the air curtain machine, the door switch U2 is kept off, the power key 110 is pressed, and after the control unit U1 detects that the power key 110 is pressed through the ninth IO port PB2 thereof, the first IO port PD1 thereof outputs a pulse width modulation signal with a duty ratio of 0 to the control unit U1, the sixth IO port PD6 thereof intermittently outputs a high level signal and a low level signal to the first status indicator lamp 140, and the seventh IO port PD7 thereof outputs a low level signal to the second status indicator lamp 150, and the first status indicator lamp 140 blinks and the second status indicator lamp 150 is extinguished.
Preferably, the control unit U1 has a power failure memory function, and can memorize the operating state of the air curtain machine before power failure.
In one embodiment, when the air curtain is in a low wind speed state, the control unit U1 memorizes that the state of the air curtain before power off is in the low wind speed state, and when the air curtain is started next time, the power key 110 is pressed to start the air curtain, and the control unit U1 controls the air curtain to be in the low wind speed state.
In the embodiment, the control unit U1 is a control system based on M8P625-SOP 16.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and changes without departing from the spirit of the invention.
Claims (8)
1. An air curtain machine control system based on air valve induction is characterized by comprising: the control device is internally provided with a control unit and a door magnetic switch, a power key is arranged on the surface of the control device, a first interface is arranged on the side surface of the control device and used for being connected with a motor of an air curtain machine, the control unit is respectively connected with the first interface and the door magnetic switch, a first driving end of the door magnetic switch is used for being connected with an air valve of the air curtain machine, and the door magnetic switch is closed when the air valve is closed;
the control unit is provided with a first IO port, a second IO port and a third IO port, the first IO port is connected with the first interface, the second IO port is connected with the second driving end of the door magnetic switch, the third IO port is connected with one end of the power key, the other end of the power key is grounded, the control unit controls a motor of the air curtain machine by configuring the first IO port into an output mode, and the control unit also detects the closed state of the door magnetic switch and the condition that the power key is pressed down by configuring the second IO port and the third IO port into an input mode;
the control unit is configured to be powered on and then enter a standby state, the standby state is defined as the control unit not outputting a pulse width modulation signal to a motor of the air curtain machine, and the control unit is further configured to be in the standby state, when the door magnetic switch is closed, the control unit outputs a pulse width modulation signal with a zero duty ratio to the motor of the air curtain machine.
2. The air curtain machine control system based on the air valve sensing is characterized in that a high air speed key and a low air speed key are arranged on the surface of the control device, the working state of the air curtain machine comprises a high air speed state and a low air speed state, the high air speed key is used for adjusting the working state of the air curtain machine to be the high air speed state, and the low air speed key is used for adjusting the working state of the air curtain machine to be the low air speed state;
the control unit is further provided with a fourth IO port and a fifth IO port, the fourth IO port is connected with one end of the high wind speed key, the fifth IO port is connected with one end of the low wind speed key, the other ends of the high wind speed key and the low wind speed key are grounded, and the control unit is used for detecting the pressing condition of the high wind speed key and the low wind speed key by configuring the fourth IO port and the fifth IO port into a detection mode;
the control unit is also used for adjusting the duty ratio of a pulse width modulation signal output to a motor of the air curtain machine according to the pressing condition of the high wind speed key and the low wind speed key.
3. The air curtain machine control system based on air valve induction is characterized in that a first status indicator lamp and a second status indicator lamp are arranged on the surface of the control device, the control unit is provided with a sixth IO port and a seventh IO port, the sixth IO port is connected with the cathode of the first status indicator lamp, the seventh IO port is connected with the cathode of the second status indicator lamp, the anodes of the first status indicator lamp and the second status indicator lamp are both connected with a power supply voltage, and the control unit controls the first status indicator lamp and the second status indicator lamp by configuring the sixth IO port and the seventh IO port into an output mode; the first status indicator light is a red light emitting diode, and the second status indicator light is a green light emitting diode.
4. The air curtain machine control system based on air valve induction is characterized in that a buzzer module is further installed in the control device, the buzzer module comprises a second triode and a buzzer, the control unit is further provided with an eighth IO port, the eighth IO port is connected with a base of the second triode, an emitter of the second triode is grounded, a collector of the second triode is connected with a first driving end of the buzzer, a second driving end of the buzzer is connected with a supply voltage, and the control unit controls the buzzer by configuring the eighth IO port into an output mode.
5. The air curtain machine control system based on air valve induction as claimed in claim 1, further comprising: the remote controller is connected with the control device in an infrared communication mode, an infrared sending module and an infrared control unit are arranged in the remote controller, the infrared control unit is connected with the infrared sending module, a remote control power key, a remote control high wind key and a remote control low wind key are arranged on the surface of the remote controller, the remote control high wind key is used for adjusting the working state of the air curtain machine to be in a high wind speed state, the remote control low wind key is used for adjusting the working state of the air curtain machine to be in a low wind speed state, the remote control power key is used for opening and closing the air curtain machine, the remote control power key, the remote control low wind key and the remote control high wind key are all connected with the infrared control unit, the infrared control unit is used for detecting the pressing condition of the remote control power key, the remote control low wind key and the remote control high wind key and controlling the infrared sending module according to the pressing condition of the remote control power key, the remote control low wind key and the remote control high wind key, and the infrared sending module is used for sending infrared signals to the control device.
6. The air curtain machine control system based on air valve induction as claimed in claim 5, wherein an infrared receiving chip is further installed in the control device, the infrared receiving chip is connected with the infrared sending module in an infrared communication mode, the infrared receiving chip is used for receiving infrared signals from the remote controller, the control unit is further provided with a ninth IO port, the ninth IO port is connected with the infrared receiving chip, the control unit configures the ninth IO port into an input mode to acquire the infrared signals of the infrared receiving chip, and the control unit is further used for adjusting the duty ratio of pulse width modulation signals output to the motor of the air curtain machine according to the infrared signals.
7. The air curtain machine control system based on air valve induction as claimed in claim 6, wherein the signal of the infrared receiving chip is IRM0038X.
8. The air curtain machine control system based on the air valve induction is characterized in that the control unit is an M8P625-SOP 16-based control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222145832.5U CN218449916U (en) | 2022-08-15 | 2022-08-15 | Air curtain machine control system based on air valve response |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222145832.5U CN218449916U (en) | 2022-08-15 | 2022-08-15 | Air curtain machine control system based on air valve response |
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| Publication Number | Publication Date |
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| CN218449916U true CN218449916U (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222145832.5U Active CN218449916U (en) | 2022-08-15 | 2022-08-15 | Air curtain machine control system based on air valve response |
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| Country | Link |
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| CN (1) | CN218449916U (en) |
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2022
- 2022-08-15 CN CN202222145832.5U patent/CN218449916U/en active Active
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