Method and device for calibrating infrared gesture distance

Abstract

The invention belongs to the field of range hoods, and discloses a method and a device for calibrating infrared gestures. The method comprises the following steps: adjusting the transmitting power of an infrared transmitting tube to the maximum transmitting power, and controlling the infrared transmitting tube to transmit an infrared signal according to the maximum transmitting power; if it is detected that the infrared receiving tube receives the infrared signal, the transmitting power of the infrared transmitting tube is reduced according to a preset power reduction threshold value, the infrared transmitting tube is controlled to transmit the infrared signal according to the reduced transmitting power, and the step of judging whether the infrared receiving tube detects the infrared signal transmitted by the infrared transmitting tube or not is executed; controlling the infrared receiving tube to continuously receive the infrared signals until the infrared signals are not received; when the infrared signal is not received, the number of times that the infrared signal is not received is accumulated, and if the number of times is larger than a preset number-of-times threshold value, the transmitting power of the infrared transmitting tube is determined according to the transmitting power before the last reduction. According to the invention, the infrared waving distance can be automatically calibrated.

Description

Technical Field

[0001] The present application relates to the technical field of range hoods, and in particular to a method and device for calibrating infrared gestures. Background Art

[0002] At present, all kitchen range hoods have an infrared waving function, which consists of two sets of transmitting and receiving modules on the left and right. In order to avoid false triggering of the infrared waving function, there are also requirements for the waving distance. Due to the consistency of the transmitting power of the infrared transmitting tube, the distance error between the infrared transmitting module, the infrared receiving module and the glass panel after installation, the transmittance error of the glass or film, and other factors will affect the waving distance standard. Therefore, a method that can automatically calibrate infrared gestures is urgently needed. Summary of the invention

[0003] Based on this, it is necessary to provide a method and device for calibrating infrared gestures to address the above technical issues.

[0004] In a first aspect, a method for calibrating infrared gestures is provided, the method being applied to a system for calibrating infrared gestures, the system comprising a range hood and a tooling, the range hood being provided with an infrared transmitting tube and an infrared receiving tube, the tooling being provided at a preset distance directly opposite to the infrared transmitting tube of the range hood, the tooling being used to reflect an infrared signal emitted by the infrared transmitting tube, the method comprising:

[0005] When in the infrared automatic correction mode, the transmitting power of the infrared transmitting tube is adjusted to the maximum transmitting power, and the infrared transmitting tube is controlled to send infrared signals according to the maximum transmitting power;

[0006] Determine whether the infrared receiving tube receives the infrared signal sent by the infrared transmitting tube;

[0007] If the infrared signal is detected, the transmitting power of the infrared transmitting tube is reduced according to a preset power reduction threshold, and the infrared transmitting tube is controlled to transmit the infrared signal according to the reduced transmitting power, and the step of determining whether the infrared receiving tube detects the infrared signal sent by the infrared transmitting tube is performed until the infrared receiving tube does not receive the infrared signal, and the infrared receiving tube is controlled to continue to receive the infrared signal;

[0008] When it is detected that the infrared receiving tube does not receive the infrared signal, the number of times the infrared signal is not received is accumulated. If the number is greater than the preset threshold, the transmission power of the infrared transmitting tube is determined according to the transmission power before the last reduction, and the infrared automatic correction mode is exited.

[0009] As an optional implementation, the tool is provided with an infrared transmitting tube and an infrared receiving tube, and the method further comprises:

[0010] When it is detected that the infrared receiving tube of the range hood receives the specific tooling instruction sent by the tooling, the debugging mode is entered, and the transmitting power of the infrared transmitting tube of the range hood and the infrared transmitting tube of the tooling are both adjusted to the maximum transmitting power;

[0011] Determine whether the range hood receives the handshake instruction sent by the tooling. If the range hood receives the handshake instruction, it is adjusted to a state of waiting to receive the instruction and accumulates the waiting time. If the waiting time is greater than a preset time threshold, the transmitting power of the infrared transmitting tube of the range hood and the infrared transmitting tube of the tooling is adjusted to the initial power, and the debugging mode is exited;

[0012] If the range hood receives the information collection instruction of the infrared signal sent by the tooling, it collects information data, sends the information data of the infrared signal with a preset number of thresholds to the tooling, and executes the step of adjusting to the state of waiting to receive instructions.

[0013] As an optional implementation manner, determining the emission power of the infrared emitting tube according to the emission power before the last reduction includes:

[0014] The product value of the emission power before the last reduction and the preset power error ratio is determined as the emission power of the infrared emission tube.

[0015] As an optional implementation, the method for calibrating infrared gestures is applied to an infrared detection circuit, wherein the infrared detection circuit includes an LED lamp, an infrared transmitting circuit, an infrared power supply control circuit, and an infrared receiving circuit; wherein,

[0016] The infrared transmitting circuit is connected to the infrared power supply control circuit through the LED lamp, and the infrared transmitting circuit, the infrared power supply control circuit and the infrared receiving circuit are all connected to a controller;

[0017] The infrared power supply control circuit is used to receive the PWM wave signal sent by the controller, and adjust the driving current of the LED lamp based on the duty cycle of the PWM wave signal to control the brightness of the LED lamp;

[0018] The infrared transmitting circuit is used to receive the high and low levels of the preset frequency sent by the controller, so that the LED lamp outputs the infrared signal of the preset frequency;

[0019] The infrared receiving circuit is used to receive the infrared signal sent by the LED lamp and send the infrared signal to the controller.

[0020] As an optional implementation, the infrared transmitting circuit includes a first triode, a first resistor, a MOS tube, a first power supply and a first capacitor;

[0021] The base of the first transistor is connected to the controller, the collector of the first transistor is respectively connected to the first end of the first resistor and the G pole of the MOS tube, the other end of the first resistor is respectively connected to the S pole of the MOS tube and the first power supply, the D pole of the MOS tube is respectively connected to the positive pole of the first capacitor and the positive pole of the LED lamp, and the emitter of the first transistor is connected to the negative pole of the first capacitor and grounded.

[0022] As an optional implementation, the infrared power supply control circuit includes a second triode, a second resistor, an operational amplifier, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a second capacitor, a third capacitor and a second power supply;

[0023] The collector of the second transistor is connected to the negative electrode of the LED lamp, the base of the second transistor is connected to one end of the second resistor, the emitter of the second transistor is respectively connected to one end of the third resistor and the inverting input end of the operational amplifier, the other end of the third resistor is grounded, the other end of the second resistor is connected to the output end of the operational amplifier, the positive power supply end of the operational amplifier is connected to the second power supply, the negative power supply end of the operational amplifier is grounded, the in-phase input end of the operational amplifier is respectively connected to one end of the fourth resistor, the positive electrode of the second capacitor, the positive electrode of the third capacitor and one end of the fifth resistor, the other end of the fourth resistor is respectively connected to the negative electrode of the second capacitor, the negative electrode of the third capacitor and one end of the sixth resistor, and is grounded, and the other end of the fifth resistor is respectively connected to the other end of the sixth resistor and the controller.

[0024] As an optional implementation, the infrared receiving circuit includes a third power supply, a fourth power supply, an infrared receiving tube, a seventh resistor, an eighth resistor, a ninth resistor, a fourth capacitor and a fifth capacitor;

[0025] The third power supply is connected to one end of the seventh resistor, the other end of the seventh resistor is respectively connected to the third pin of the infrared receiving tube and the positive electrode of the fourth capacitor, the second pin of the infrared receiving tube is respectively connected to the negative electrode of the fourth capacitor and the negative electrode of the fifth capacitor, and is grounded, the first pin of the infrared receiving tube is respectively connected to one end of the eighth resistor and one end of the ninth resistor, the other end of the eighth resistor is connected to the fourth power supply, and the other end of the ninth resistor is respectively connected to the positive electrode of the fifth capacitor and the controller.

[0026] In a second aspect, a device for calibrating infrared gestures is provided, the device being applied to a system for calibrating infrared gestures, the system comprising a range hood and a tooling, the range hood being provided with an infrared transmitting tube and an infrared receiving tube, the tooling being provided at a preset distance directly opposite to the infrared transmitting tube of the range hood, the tooling being used to reflect an infrared signal emitted by the infrared transmitting tube, the device comprising:

[0027] A first adjustment module is used to adjust the transmission power of the infrared transmitting tube to the maximum transmission power when in the infrared automatic correction mode, and control the infrared transmitting tube to send infrared signals according to the maximum transmission power;

[0028] A judging module, used for judging whether the infrared receiving tube has received the infrared signal sent by the infrared transmitting tube;

[0029] a reduction module, for reducing the transmission power of the infrared transmitting tube according to a preset power reduction threshold if the infrared signal is detected, and controlling the infrared transmitting tube to transmit the infrared signal according to the reduced transmission power, and executing the step of determining whether the infrared receiving tube detects the infrared signal sent by the infrared transmitting tube until the infrared receiving tube does not receive the infrared signal, and controlling the infrared receiving tube to continue to receive the infrared signal;

[0030] The accumulation module is used to accumulate the number of times the infrared receiving tube does not receive the infrared signal when the infrared receiving tube does not receive the infrared signal. If the number is greater than a preset number threshold, the transmission power of the infrared transmitting tube is determined according to the transmission power before the last reduction, and the infrared automatic correction mode is exited.

[0031] As an optional implementation, the tool is provided with an infrared transmitting tube and an infrared receiving tube, and the device further comprises:

[0032] The second adjustment module is used to enter the debugging mode and adjust the transmission power of the infrared transmitting tube of the range hood and the infrared transmitting tube of the tool to the maximum transmission power after detecting that the infrared receiving tube of the range hood receives the specific tool instruction sent by the tool;

[0033] A determination module, used to determine whether the range hood has received the handshake instruction sent by the tooling, if the range hood has received the handshake instruction, it is adjusted to a state of waiting to receive the instruction, and the waiting time is accumulated, if the waiting time is greater than a preset time threshold, the transmission power of the infrared transmitting tube of the range hood and the infrared transmitting tube of the tooling is adjusted to an initial power, and the debugging mode is exited;

[0034] The sending module is used to collect information data if the range hood receives an information collection instruction of the infrared signal sent by the tooling, and send the information data of the infrared signal with a preset number of thresholds to the tooling, and execute the step of adjusting to the state of waiting to receive instructions.

[0035] As an optional implementation manner, the accumulation module is specifically used to:

[0036] The product value of the emission power before the last reduction and the preset power error ratio is determined as the emission power of the infrared emission tube.

[0037] As an optional implementation, the device further includes an infrared detection circuit, which includes an LED lamp, an infrared transmitting circuit, an infrared power supply control circuit and an infrared receiving circuit; wherein,

[0038] The infrared transmitting circuit is connected to the infrared power supply control circuit through the LED lamp, and the infrared transmitting circuit, the infrared power supply control circuit and the infrared receiving circuit are all connected to a controller;

[0039] The infrared power supply control circuit is used to receive the PWM wave signal sent by the controller, and adjust the driving current of the LED lamp based on the duty cycle of the PWM wave signal to control the brightness of the LED lamp;

[0040] The infrared transmitting circuit is used to receive the high and low levels of the preset frequency sent by the controller, so that the LED lamp outputs the infrared signal of the preset frequency;

[0041] The infrared receiving circuit is used to receive the infrared signal sent by the LED lamp and send the infrared signal to the controller.

[0042] As an optional implementation, the infrared transmitting circuit includes a first triode, a first resistor, a MOS tube, a first power supply and a first capacitor;

[0043] The base of the first transistor is connected to the controller, the collector of the first transistor is respectively connected to the first end of the first resistor and the G pole of the MOS tube, the other end of the first resistor is respectively connected to the S pole of the MOS tube and the first power supply, the D pole of the MOS tube is respectively connected to the positive pole of the first capacitor and the positive pole of the LED lamp, and the emitter of the first transistor is connected to the negative pole of the first capacitor and grounded.

[0044] As an optional implementation, the infrared power supply control circuit includes a second triode, a second resistor, an operational amplifier, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a second capacitor, a third capacitor and a second power supply;

[0045] The collector of the second transistor is connected to the negative electrode of the LED lamp, the base of the second transistor is connected to one end of the second resistor, the emitter of the second transistor is respectively connected to one end of the third resistor and the inverting input end of the operational amplifier, the other end of the third resistor is grounded, the other end of the second resistor is connected to the output end of the operational amplifier, the positive power supply end of the operational amplifier is connected to the second power supply, the negative power supply end of the operational amplifier is grounded, the in-phase input end of the operational amplifier is respectively connected to one end of the fourth resistor, the positive electrode of the second capacitor, the positive electrode of the third capacitor and one end of the fifth resistor, the other end of the fourth resistor is respectively connected to the negative electrode of the second capacitor, the negative electrode of the third capacitor and one end of the sixth resistor, and is grounded, and the other end of the fifth resistor is respectively connected to the other end of the sixth resistor and the controller.

[0046] As an optional implementation, the infrared receiving circuit includes a third power supply, a fourth power supply, an infrared receiving tube, a seventh resistor, an eighth resistor, a ninth resistor, a fourth capacitor and a fifth capacitor;

[0047] The third power supply is connected to one end of the seventh resistor, the other end of the seventh resistor is respectively connected to the third pin of the infrared receiving tube and the positive electrode of the fourth capacitor, the second pin of the infrared receiving tube is respectively connected to the negative electrode of the fourth capacitor and the negative electrode of the fifth capacitor, and is grounded, the first pin of the infrared receiving tube is respectively connected to one end of the eighth resistor and one end of the ninth resistor, the other end of the eighth resistor is connected to the fourth power supply, and the other end of the ninth resistor is respectively connected to the positive electrode of the fifth capacitor and the controller.

[0048] In a third aspect, a system for calibrating infrared gestures is provided, and the system for calibrating infrared gestures comprises: the method for calibrating infrared gestures as described in the first aspect and the device for calibrating infrared gestures as described in the second aspect.

[0049] The present application provides a method for calibrating infrared gestures. The technical solution provided by the embodiments of the present application brings at least the following beneficial effects: during production, the tooling can be set at a preset fixed position of the range hood, and then the transmission power of the infrared transmitting tube of the range hood can be adjusted so that the infrared receiving tube of the range hood receives the infrared signal, and the transmission power is gradually reduced so that the infrared receiving tube does not receive the infrared signal. In this way, the most suitable transmission power of the infrared transmitting tube at the preset fixed position can be obtained. Thereby, the distance of infrared waving can be automatically calibrated. In addition, when an abnormality occurs in the product, the abnormality data is transmitted to the tooling of the maintenance personnel through infrared two-way communication, so that the maintenance personnel can quickly and accurately locate which module has caused the abnormality that caused the product to fail to work, thereby improving maintenance efficiency.

[0050] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0052] Figure 1 A schematic diagram of the structure of a system for calibrating infrared gestures provided in an embodiment of the present application;

[0053] Figure 2 A flowchart of a method for calibrating infrared gestures provided in an embodiment of the present application;

[0054] Figure 3 An example flow chart of automatic calibration of infrared gestures provided in an embodiment of the present application;

[0055] Figure 4 An example flow chart of infrared gesture debugging provided in an embodiment of the present application;

[0056] Figure 5a and 5b A schematic diagram of an infrared detection circuit provided in an embodiment of the present application;

[0057] Figure 6 A schematic diagram of the structure of a device for calibrating infrared gestures provided in an embodiment of the present application. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application 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 application and are not used to limit the present application.

[0059] The method for calibrating infrared gestures provided in the embodiments of the present application can be applied to a system for calibrating infrared gestures. Figure 1 As shown, the system for calibrating infrared gestures includes a range hood 101 and a tool 102. The range hood 101 is provided with an infrared transmitting tube and an infrared receiving tube. The tool 102 is arranged at a preset distance directly opposite to the infrared transmitting tube of the range hood 101, wherein the preset distance may be 30 cm.

[0060] The range hood 101 is used to adjust the transmission power of the infrared transmitting tube to the maximum transmission power when in the infrared automatic correction mode, and control the infrared transmitting tube to send infrared signals according to the maximum transmission power. Determine whether the infrared receiving tube receives the infrared signal sent by the infrared transmitting tube. If the infrared signal is detected, the transmission power of the infrared transmitting tube is reduced according to the preset power reduction threshold, and the infrared transmitting tube is controlled to transmit the infrared signal according to the reduced transmission power, and the step of determining whether the infrared receiving tube detects the infrared signal sent by the infrared transmitting tube is performed until the infrared receiving tube does not receive the infrared signal, and the infrared receiving tube is controlled to continue to receive the infrared signal. When the infrared receiving tube does not receive the infrared signal, the number of times the infrared signal is not received is accumulated. If the number is greater than the preset number threshold, the transmission power of the infrared transmitting tube is determined according to the transmission power before the last reduction, and the infrared automatic correction mode is exited.

[0061] The tooling 102 is used to reflect the infrared signal emitted by the infrared emitting tube of the range hood 101 .

[0062] The following will describe in detail a method for calibrating infrared gestures provided in an embodiment of the present application in conjunction with a specific implementation manner. Figure 2 A flowchart of a method for calibrating infrared gestures provided in an embodiment of the present application is shown in FIG. Figure 2 As shown, the specific steps are as follows:

[0063] Step 201, when in the infrared automatic calibration mode, the transmitting power of the infrared transmitting tube is adjusted to the maximum transmitting power, and the infrared transmitting tube is controlled to send infrared signals according to the maximum transmitting power.

[0064] In practice, the range hoods in the kitchen are equipped with an infrared waving function, which is composed of two groups of transmitting and receiving modules on the left and right. In order to avoid false triggering of the infrared waving function, the waving distance is also required. Due to the consistency of the transmitting power of the infrared transmitting tube, the spacing error between the infrared transmitting module, the infrared receiving module and the glass panel after installation, the transmittance error of the glass or diaphragm and other factors will affect the waving distance standard. Therefore, it is necessary to calibrate the distance of the infrared gesture of the range hood. The automatic correction principle of the distance of the infrared gesture is based on the infrared transmitting and receiving principle. The infrared signal of a fixed frequency is sent by the infrared transmitting tube. The infrared signal is reflected by the tooling at a fixed distance. After the infrared receiving tube receives the infrared signal, it identifies the signals of 0 and 1 to determine whether there is an object blocking it, thereby determining the waving signal. When the infrared receiving tube receives the infrared signal of a fixed frequency sent by the infrared transmitting tube, a change in high and low levels will occur, thereby realizing infrared communication. Among them, when a high and low level signal of a fixed frequency is received, a low level is presented; when no signal is received, a high level is presented. When the infrared brightness emitted by the infrared transmitting tube is adjustable, the infrared transmitting distance can be automatically calibrated. Because too strong a transmitting signal is easy to cause false triggering, and too weak a transmitting signal will cause the waving to fail to be recognized, so it is generally more appropriate to control the waving distance at 30cm. When the automatic calibration of the infrared gesture distance is started, a fixed tooling needs to be placed 30cm away from the range hood, and the range hood enters the automatic calibration mode. The range hood first determines whether the tooling position is placed normally by emitting an infrared signal with the maximum power. In the subsequent steps, the infrared transmitting power is continuously reduced to finally obtain the most suitable transmitting power of the range hood at 30cm, and finally save the transmitting power before the last reduction. Ensure that the infrared signal can be sensed 100% at 30cm, and the automatic calibration process of the infrared gesture distance is completed. Therefore, when in the infrared automatic calibration mode, adjust the transmitting power of the infrared transmitting tube to the maximum transmitting power, and control the infrared transmitting tube to send infrared signals according to the maximum transmitting power.

[0065] Step 202, determining whether the infrared receiving tube receives the infrared signal sent by the infrared transmitting tube.

[0066] In practice, when the infrared transmitting tube sends an infrared signal at the maximum transmitting power, it is necessary to determine whether the infrared receiving tube receives the infrared signal. Only when the infrared signal is received can the infrared gesture calibration continue normally. Therefore, the range hood needs to determine whether the infrared receiving tube receives the infrared signal sent by the infrared transmitting tube.

[0067] Step 203, if an infrared signal is detected, the transmission power of the infrared transmitting tube is reduced according to the preset power reduction threshold, and the infrared transmitting tube is controlled to transmit the infrared signal according to the reduced transmission power, and the step of determining whether the infrared receiving tube detects the infrared signal sent by the infrared transmitting tube is executed until the infrared receiving tube does not receive the infrared signal, and the infrared receiving tube is controlled to continue to receive the infrared signal.

[0068] In implementation, if an infrared signal is detected, it means that the infrared gesture calibration can continue, and the transmission power of the infrared transmitting tube can be reduced, and then it is determined again whether the infrared receiving tube receives the infrared signal. If an infrared signal is received, the step of reducing the transmission power is repeated until the infrared receiving tube does not receive the infrared signal. Therefore, if an infrared signal is detected, the transmission power of the infrared transmitting tube is reduced according to the preset power reduction threshold, and the infrared transmitting tube is controlled to transmit the infrared signal according to the reduced transmission power, and the step of determining whether the infrared receiving tube detects the infrared signal sent by the infrared transmitting tube is performed until the infrared receiving tube does not receive the infrared signal. When the infrared receiving tube does not receive the infrared signal, it is necessary to continue to keep the infrared receiving tube in the state of receiving the infrared signal to prevent reception errors. Therefore, the infrared receiving tube is controlled to continue to receive infrared signals. Among them, the preset power reduction threshold can be 2%.

[0069] Step 204, when it is detected that the infrared receiving tube does not receive the infrared signal, the number of times the infrared signal is not received is accumulated. If the number is greater than the preset number threshold, the transmission power of the infrared transmitting tube is determined according to the transmission power before the last reduction, and the infrared automatic calibration mode is exited.

[0070] In implementation, after continuously reducing the transmission power of the infrared transmitting tube, when it is detected that the infrared receiving tube does not receive the infrared signal, in order to prevent detection errors, it is also necessary to control the infrared receiving tube to continue to detect the infrared signal and accumulate the number of times the infrared receiving tube does not receive the infrared signal. Compare the number of times the infrared signal is not received with the preset number threshold. If the number is greater than the preset number threshold, it means that the infrared transmitting tube really cannot receive the infrared signal. At this time, the transmission power of the infrared transmitting tube is determined according to the transmission power before the last reduction. In this way, the most suitable transmission distance of the infrared transmitting tube for the tooling distance is obtained. Therefore, when it is detected that the infrared receiving tube does not receive the infrared signal, the number of times the infrared signal is not received is accumulated. If the number is greater than the preset number threshold, the transmission power of the infrared transmitting tube is determined according to the transmission power before the last reduction, and the infrared automatic correction mode is exited. Among them, the preset number threshold can be 3 times.

[0071] Furthermore, the step of determining the emission power of the infrared emitting tube according to the emission power before the last reduction is: determining the emission power of the infrared emitting tube as the product value of the emission power before the last reduction and the preset power error ratio.

[0072] In implementation, the product of the transmit power before the last reduction and the preset power error ratio is determined as the transmit power of the infrared transmitting tube. The preset power error ratio is 105%. In other words, the transmit power of the infrared transmitting tube before the last reduction is added with a 5% error margin ratio to determine the transmit power of the infrared transmitting tube. In this way, it can be ensured that the emitted infrared signal can be sensed 100% at the tooling installation distance, and the automatic correction process of the infrared gesture distance is completed.

[0073] like Figure 3 As shown, the range hood first enters the infrared automatic calibration mode and determines the infrared transmission power as the maximum power. It is determined whether the infrared receiving tube detects an infrared signal. If the number of detections of the infrared signal is greater than or equal to 3 times, the automatic calibration mode is exited and an error is returned. If an infrared signal is detected, the infrared transmission power is reduced by 2%, and it is determined again whether the infrared receiving tube receives an infrared signal. If the number of detections of the infrared signal is greater than or equal to 3 times, the automatic calibration mode is exited, the transmission power before the last power reduction is determined as the final transmission power, and the final transmission power is returned. If infrared signals can still be detected, the step of reducing the infrared transmission power by 2% is repeated.

[0074] Furthermore, the range hood also has a debugging mode, and the tooling is equipped with an infrared transmitting tube and an infrared receiving tube. The specific process is as follows:

[0075] Step 1: When it is detected that the infrared receiving tube of the range hood receives a specific tooling instruction sent by the tooling, the debugging mode is entered, and the transmitting power of the infrared transmitting tube of the range hood and the infrared transmitting tube of the tooling are adjusted to the maximum transmitting power.

[0076] In practice, when a range hood on the market or a range hood produced by a factory fails, after the user or production line reports the problem, the maintenance technician needs to understand the situation in detail, and then perform a fault reset test and find the relevant information before analysis. The specific cause may not be quickly and accurately located, which is very time-consuming and inefficient. Therefore, the range hood can be adjusted to the debugging mode. When the product is abnormal, the electronic control system can transmit the abnormal data to the maintenance personnel's tooling through infrared two-way communication, so that the maintenance personnel can quickly and accurately locate which module has caused the abnormality that caused the product to fail, thereby improving the maintenance efficiency. Therefore, the tooling will send a specific tooling instruction to the range hood. When it is detected that the infrared receiving tube of the range hood receives the specific tooling instruction sent by the tooling, it enters the debugging mode. Then the transmission power of the infrared transmitting tube of the range hood and the infrared transmitting tube of the tooling are adjusted to the maximum transmission power. In this way, the reliability of sending and receiving infrared signals is increased. The greater the power, the less interference will be caused, and the transmitted data will be more reliable, avoiding the transmission of some erroneous data.

[0077] Step 2, determine whether the range hood has received the handshake command sent by the tooling. If the range hood receives the handshake command, it is adjusted to a state of waiting to receive the command and accumulates the waiting time. If the waiting time is greater than the preset time threshold, the transmission power of the infrared transmitting tube of the range hood and the infrared transmitting tube of the tooling is adjusted to the initial power, and the debugging mode is exited.

[0078] In implementation, when the range hood is in debugging mode, the tooling can shake hands with the range hood. After the tooling and the range hood shake hands successfully, the work log of the range hood and the working status of the range hood can be transmitted back to the tooling through a two-way communication method using infrared signals. The maintenance personnel can quickly locate the abnormal module with problems based on the work log of the range hood and the current working status of the range hood, and accurately identify the specific parts of the abnormal module corresponding to the range hood, thereby improving maintenance efficiency and accuracy. Determine whether the range hood has received the handshake command sent by the tooling. If the range hood receives the handshake command, it is adjusted to a state of waiting to receive the command, waiting for the tooling to send the command operation. At the same time, the waiting time is accumulated, and the waiting time is compared with the preset time threshold. If the waiting time is longer than the preset time threshold, it means that the tooling does not want to obtain the information of the range hood in time, then the transmission power of the infrared transmitting tube of the range hood and the infrared transmitting tube of the tooling is adjusted to the initial power, and the debugging mode is exited. Among them, the preset time threshold can be 10 seconds.

[0079] Step three, if the range hood receives the information collection instruction of the infrared signal sent by the tooling, it collects information data, sends the information data of the infrared signal with a preset number of thresholds to the tooling, and executes the step of adjusting to the state of waiting to receive instructions.

[0080] In implementation, if the range hood receives the information collection instruction of the infrared signal sent by the tooling, the range hood collects information data, which may include working status and work log. The working status includes the starting current of the range hood fan, the current speed and other information, and the work log includes the number of times the range hood is started during operation, the number of times the range hood operates abnormally, etc. The infrared signal information data with a preset number of thresholds is sent to the tooling, and the range hood is adjusted to a state of waiting to receive instructions to determine whether the tooling has new instructions.

[0081] like Figure 4 As shown, after the infrared receiver (infrared receiving tube) of the range hood receives a specific tooling instruction, it enters the debugging mode and adjusts the infrared transmission power to the maximum power. The range hood determines whether the handshake instruction is received. If not, the infrared transmission power is restored to normal and the debugging mode is exited. If received, it waits for the receiving instruction and determines whether the receiving instruction is received. If not, the waiting time is accumulated. If the waiting time exceeds 10s, the infrared transmission power is restored to normal and the debugging mode is exited. If received, the instruction data is replied, and the instruction data is replied 3 times, and then it continues to wait for the receiving instruction.

[0082] Furthermore, the method for calibrating infrared gestures is applied to an infrared detection circuit. As shown in FIG5 , the infrared detection circuit includes an LED lamp, an infrared transmitting circuit 501 , an infrared power supply control circuit 502 and an infrared receiving circuit 503 .

[0083] The infrared transmitting circuit 501 is connected to the infrared power supply control circuit 502 through an LED lamp, and the infrared transmitting circuit 501, the infrared power supply control circuit 502 and the infrared receiving circuit 503 are all connected to a controller.

[0084] The infrared power supply control circuit 502 is used to receive the PWM wave signal sent by the controller, and adjust the driving current of the LED lamp based on the duty cycle of the PWM wave signal to control the brightness of the LED lamp.

[0085] The infrared transmitting circuit 501 is used to receive the high and low levels of the preset frequency sent by the controller, so that the LED lamp outputs an infrared signal of the preset frequency.

[0086] The infrared receiving circuit 503 is used to receive the infrared signal sent by the LED lamp and send the infrared signal to the controller.

[0087] As an optional implementation, Figure 5a As shown, the infrared transmitting circuit 501 includes a first transistor TR4, a first resistor R101, a MOS transistor TR3, a first power supply 5V and a first capacitor C51.

[0088] The base of the first transistor TR4 is connected to the controller, the collector of the first transistor TR4 is respectively connected to the first end of the first resistor R101 and the G pole of the MOS transistor TR3, the other end of the first resistor R101 is respectively connected to the S pole of the MOS transistor TR3 and the first power supply 5V, the D pole of the MOS transistor TR3 is respectively connected to the positive pole of the first capacitor C51 and the positive pole of the LED lamp, and the emitter of the first transistor TR4 is connected to the negative pole of the first capacitor C51 and grounded.

[0089] As an optional implementation, Figure 5a As shown, the infrared power control circuit 502 includes a second transistor Q6, a second resistor R131, an operational amplifier U18A, a third resistor R102, a fourth resistor R94, a fifth resistor R88, a sixth resistor R93, a second capacitor C44, a third capacitor C43 and a second power supply 5V.

[0090] The collector of the second transistor Q6 is connected to the negative electrode of the LED lamp, the base of the second transistor Q6 is connected to one end of the second resistor R131, the emitter of the second transistor Q6 is respectively connected to one end of the third resistor R102 and the reverse input end of the operational amplifier U18A, the other end of the third resistor R102 is grounded, the other end of the second resistor R131 is connected to the output end of the operational amplifier U18A, the positive power supply end of the operational amplifier U18A is connected to the second power supply 5V, the negative power supply end of the operational amplifier U18A is grounded, the in-phase input end of the operational amplifier U18A is respectively connected to one end of the fourth resistor R94, the positive electrode of the second capacitor C44, the positive electrode of the third capacitor C43 and one end of the fifth resistor R88, the other end of the fourth resistor R94 is respectively connected to the negative electrode of the second capacitor C44, the negative electrode of the third capacitor C43 and one end of the sixth resistor R93, and is grounded, and the other end of the fifth resistor R88 is respectively connected to the other end of the sixth resistor R93 and the controller.

[0091] In this way, the current of the LED lamp is controllable. The PWM wave signal can be output by the controller, which is converted into a smooth DC voltage signal through the RC filter composed of the fifth resistor R88 and the third capacitor C43. The conduction of the second transistor Q6 is controlled according to the virtual-off characteristic of the operational amplifier U18A, thereby realizing the control of the current of the LED lamp.

[0092] As an optional implementation, Figure 5b As shown, the infrared receiving circuit 503 includes a third power supply VCC-5V, a fourth power supply VCC-5V, an infrared receiving tube IR1, a seventh resistor R39, an eighth resistor R40, a ninth resistor R41, a fourth capacitor C1 and a fifth capacitor C16.

[0093] The third power supply VCC-5V is connected to one end of the seventh resistor R39, the other end of the seventh resistor R39 is respectively connected to the third pin of the infrared receiving tube IR1 and the positive electrode of the fourth capacitor C1, the second pin of the infrared receiving tube IR1 is respectively connected to the negative electrode of the fourth capacitor C1 and the negative electrode of the fifth capacitor C16, and is grounded, the first pin of the infrared receiving tube IR1 is respectively connected to one end of the eighth resistor R40 and one end of the ninth resistor R41, the other end of the eighth resistor R40 is connected to the fourth power supply VCC-5V, and the other end of the ninth resistor R41 is respectively connected to the positive electrode of the fifth capacitor C16 and the controller. When the Power pin outputs a high and low level output of a frequency of 38KHz, the LED and the like output a frequency pulse signal of 38KHz, and when the infrared receiving tube IR1 receives a fixed frequency signal, a high and low level change will occur in the infrared receiving tube IR1, thereby realizing infrared communication.

[0094] The embodiment of the present application provides a method for calibrating infrared gestures. During production, the tooling can be set at a preset fixed position of the range hood, and then the transmission power of the infrared transmitting tube of the range hood is adjusted so that the infrared receiving tube of the range hood receives the infrared signal, and the transmission power is gradually reduced so that the infrared receiving tube does not receive the infrared signal. In this way, the most suitable transmission power of the infrared transmitting tube at the preset fixed position can be obtained. Thereby, the infrared waving distance can be automatically calibrated. In addition, when an abnormality occurs in the product, the abnormality data is transmitted to the tooling of the maintenance personnel through infrared two-way communication, so that the maintenance personnel can quickly and accurately locate which module has caused the abnormality that caused the product to fail to work, thereby improving maintenance efficiency.

[0095] It should be understood that although Figures 2 to 4 The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, Figures 2 to 4 At least part of the steps may include multiple steps or multiple stages. These steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed in turn or alternately with other steps or at least part of the steps or stages in other steps.

[0096] It can be understood that the same / similar parts between the various embodiments of the above method in this specification can refer to each other, and each embodiment focuses on the differences from other embodiments. For related points, please refer to the description of other method embodiments.

[0097] The present application also provides a device for calibrating infrared gestures, such as Figure 6As shown, the device comprises:

[0098] The first adjustment module 601 is used to adjust the transmission power of the infrared transmitting tube to the maximum transmission power when in the infrared automatic correction mode, and control the infrared transmitting tube to send infrared signals according to the maximum transmission power;

[0099] The judging module 602 is used to judge whether the infrared receiving tube receives the infrared signal sent by the infrared transmitting tube;

[0100] The reducing module 603 is used for reducing the transmitting power of the infrared transmitting tube according to a preset power reduction threshold if the infrared signal is detected, and controlling the infrared transmitting tube to transmit the infrared signal according to the reduced transmitting power, and executing the step of determining whether the infrared receiving tube detects the infrared signal sent by the infrared transmitting tube until the infrared receiving tube does not receive the infrared signal, and controlling the infrared receiving tube to continue to receive the infrared signal;

[0101] The accumulation module 604 is used to accumulate the number of times the infrared signal is not received when it is detected that the infrared receiving tube does not receive the infrared signal. If the number is greater than a preset threshold, the transmission power of the infrared transmitting tube is determined according to the transmission power before the last reduction, and the infrared automatic correction mode is exited.

[0102] As an optional implementation, the tool is provided with an infrared transmitting tube and an infrared receiving tube, and the device further comprises:

[0103] The second adjustment module is used to enter the debugging mode and adjust the transmission power of the infrared transmitting tube of the range hood and the infrared transmitting tube of the tool to the maximum transmission power after detecting that the infrared receiving tube of the range hood receives the specific tool instruction sent by the tool;

[0104] A determination module, used to determine whether the range hood has received the handshake instruction sent by the tooling, if the range hood has received the handshake instruction, it is adjusted to a state of waiting to receive the instruction, and the waiting time is accumulated, if the waiting time is greater than a preset time threshold, the transmission power of the infrared transmitting tube of the range hood and the infrared transmitting tube of the tooling is adjusted to an initial power, and the debugging mode is exited;

[0105] The sending module is used to collect information data if the range hood receives an information collection instruction of the infrared signal sent by the tooling, and send the information data of the infrared signal with a preset number of thresholds to the tooling, and execute the step of adjusting to the state of waiting to receive instructions.

[0106] As an optional implementation, the accumulation module 604 is specifically configured to:

[0107] The product value of the emission power before the last reduction and the preset power error ratio is determined as the emission power of the infrared emission tube.

[0108] As an optional implementation, the device further includes an infrared detection circuit, which includes an LED lamp, an infrared transmitting circuit, an infrared power supply control circuit and an infrared receiving circuit; wherein,

[0109] The infrared transmitting circuit is connected to the infrared power supply control circuit through the LED lamp, and the infrared transmitting circuit, the infrared power supply control circuit and the infrared receiving circuit are all connected to a controller;

[0110] The infrared power supply control circuit is used to receive the PWM wave signal sent by the controller, and adjust the driving current of the LED lamp based on the duty cycle of the PWM wave signal to control the brightness of the LED lamp;

[0111] The infrared transmitting circuit is used to receive the high and low levels of the preset frequency sent by the controller, so that the LED lamp outputs the infrared signal of the preset frequency;

[0112] The infrared receiving circuit is used to receive the infrared signal sent by the LED lamp and send the infrared signal to the controller.

[0113] As an optional implementation, the infrared transmitting circuit includes a first triode, a first resistor, a MOS tube, a first power supply and a first capacitor;

[0114] The base of the first transistor is connected to the controller, the collector of the first transistor is respectively connected to the first end of the first resistor and the G pole of the MOS tube, the other end of the first resistor is respectively connected to the S pole of the MOS tube and the first power supply, the D pole of the MOS tube is respectively connected to the positive pole of the first capacitor and the positive pole of the LED lamp, and the emitter of the first transistor is connected to the negative pole of the first capacitor and grounded.

[0115] As an optional implementation, the infrared power supply control circuit includes a second triode, a second resistor, an operational amplifier, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a second capacitor, a third capacitor and a second power supply;

[0116] The collector of the second transistor is connected to the negative electrode of the LED lamp, the base of the second transistor is connected to one end of the second resistor, the emitter of the second transistor is respectively connected to one end of the third resistor and the inverting input end of the operational amplifier, the other end of the third resistor is grounded, the other end of the second resistor is connected to the output end of the operational amplifier, the positive power supply end of the operational amplifier is connected to the second power supply, the negative power supply end of the operational amplifier is grounded, the in-phase input end of the operational amplifier is respectively connected to one end of the fourth resistor, the positive electrode of the second capacitor, the positive electrode of the third capacitor and one end of the fifth resistor, the other end of the fourth resistor is respectively connected to the negative electrode of the second capacitor, the negative electrode of the third capacitor and one end of the sixth resistor, and is grounded, and the other end of the fifth resistor is respectively connected to the other end of the sixth resistor and the controller.

[0117] As an optional implementation, the infrared receiving circuit includes a third power supply, a fourth power supply, an infrared receiving tube, a seventh resistor, an eighth resistor, a ninth resistor, a fourth capacitor and a fifth capacitor;

[0118] The third power supply is connected to one end of the seventh resistor, the other end of the seventh resistor is respectively connected to the third pin of the infrared receiving tube and the positive electrode of the fourth capacitor, the second pin of the infrared receiving tube is respectively connected to the negative electrode of the fourth capacitor and the negative electrode of the fifth capacitor, and is grounded, the first pin of the infrared receiving tube is respectively connected to one end of the eighth resistor and one end of the ninth resistor, the other end of the eighth resistor is connected to the fourth power supply, and the other end of the ninth resistor is respectively connected to the positive electrode of the fifth capacitor and the controller.

[0119] The embodiment of the present application provides a device for calibrating infrared gestures. During production, the tooling can be set at a preset fixed position of the range hood, and then the transmission power of the infrared transmitting tube of the range hood can be adjusted so that the infrared receiving tube of the range hood receives the infrared signal, and the transmission power is gradually reduced so that the infrared receiving tube does not receive the infrared signal. In this way, the most suitable transmission power of the infrared transmitting tube at the preset fixed position can be obtained. Thereby, the distance of infrared waving can be automatically calibrated. In addition, when an abnormality occurs in the product, the abnormality data is transmitted to the tooling of the maintenance personnel through infrared two-way communication, so that the maintenance personnel can quickly and accurately locate which module has caused the abnormality that caused the product to fail to work, thereby improving maintenance efficiency.

[0120] For the specific definition of the device for calibrating infrared gestures, please refer to the definition of the method for calibrating infrared gestures above, which will not be repeated here. Each module in the above-mentioned device for calibrating infrared gestures can be implemented in whole or in part by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0121] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0122] It should also be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for display, data for analysis, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0123] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0124] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0125] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A method for calibrating infrared gestures, characterized in that: The method is applied to a system for calibrating infrared gestures, the system comprising a range hood and a tooling, the range hood being provided with an infrared transmitting tube and an infrared receiving tube, the tooling being provided at a preset distance directly opposite to the infrared transmitting tube of the range hood, the tooling being used to reflect an infrared signal emitted by the infrared transmitting tube, the method comprising: When in the infrared automatic correction mode, the transmitting power of the infrared transmitting tube is adjusted to the maximum transmitting power, and the infrared transmitting tube is controlled to send infrared signals according to the maximum transmitting power; Determine whether the infrared receiving tube receives the infrared signal sent by the infrared transmitting tube; If the infrared signal is detected, the transmitting power of the infrared transmitting tube is reduced according to a preset power reduction threshold, and the infrared transmitting tube is controlled to transmit the infrared signal according to the reduced transmitting power, and the step of determining whether the infrared receiving tube detects the infrared signal sent by the infrared transmitting tube is performed until the infrared receiving tube does not receive the infrared signal, and the infrared receiving tube is controlled to continue to receive the infrared signal; When it is detected that the infrared receiving tube does not receive the infrared signal, the number of times the infrared signal is not received is accumulated. If the number is greater than the preset threshold, the transmission power of the infrared transmitting tube is determined according to the transmission power before the last reduction, and the infrared automatic correction mode is exited.

2. The method according to claim 1, characterized in that The tooling is provided with an infrared transmitting tube and an infrared receiving tube, and the method further comprises: When it is detected that the infrared receiving tube of the range hood receives the specific tooling instruction sent by the tooling, the debugging mode is entered, and the transmitting power of the infrared transmitting tube of the range hood and the infrared transmitting tube of the tooling are both adjusted to the maximum transmitting power; Determine whether the range hood receives the handshake instruction sent by the tooling. If the range hood receives the handshake instruction, it is adjusted to a state of waiting to receive the instruction and accumulates the waiting time. If the waiting time is greater than a preset time threshold, the transmitting power of the infrared transmitting tube of the range hood and the infrared transmitting tube of the tooling is adjusted to the initial power, and the debugging mode is exited; If the range hood receives the information collection instruction of the infrared signal sent by the tooling, it collects information data, sends the information data of the infrared signal with a preset number of thresholds to the tooling, and executes the step of adjusting to the state of waiting to receive instructions.

3. The method according to claim 1, characterized in that The step of determining the emission power of the infrared emitting tube according to the emission power before the last reduction includes: The product value of the emission power before the last reduction and the preset power error ratio is determined as the emission power of the infrared emission tube.

4. The method according to claim 1, characterized in that: The method for calibrating infrared gestures is applied to an infrared detection circuit, which includes an LED lamp, an infrared transmitting circuit, an infrared power supply control circuit and an infrared receiving circuit; wherein, The infrared transmitting circuit is connected to the infrared power supply control circuit through the LED lamp, and the infrared transmitting circuit, the infrared power supply control circuit and the infrared receiving circuit are all connected to a controller; The infrared power supply control circuit is used to receive the PWM wave signal sent by the controller, and adjust the driving current of the LED lamp based on the duty cycle of the PWM wave signal to control the brightness of the LED lamp; The infrared transmitting circuit is used to receive the high and low levels of the preset frequency sent by the controller, so that the LED lamp outputs the infrared signal of the preset frequency; The infrared receiving circuit is used to receive the infrared signal sent by the LED lamp and send the infrared signal to the controller.

5. The method according to claim 4, characterized in that The infrared emission circuit includes a first triode, a first resistor, a MOS tube, a first power supply and a first capacitor; The base of the first transistor is connected to the controller, the collector of the first transistor is respectively connected to the first end of the first resistor and the G pole of the MOS tube, the other end of the first resistor is respectively connected to the S pole of the MOS tube and the first power supply, the D pole of the MOS tube is respectively connected to the positive pole of the first capacitor and the positive pole of the LED lamp, and the emitter of the first transistor is connected to the negative pole of the first capacitor and grounded.

6. The method according to claim 4, characterized in that The infrared power supply control circuit includes a second triode, a second resistor, an operational amplifier, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a second capacitor, a third capacitor and a second power supply; The collector of the second transistor is connected to the negative electrode of the LED lamp, the base of the second transistor is connected to one end of the second resistor, the emitter of the second transistor is respectively connected to one end of the third resistor and the inverting input end of the operational amplifier, the other end of the third resistor is grounded, the other end of the second resistor is connected to the output end of the operational amplifier, the positive power supply end of the operational amplifier is connected to the second power supply, the negative power supply end of the operational amplifier is grounded, the in-phase input end of the operational amplifier is respectively connected to one end of the fourth resistor, the positive electrode of the second capacitor, the positive electrode of the third capacitor and one end of the fifth resistor, the other end of the fourth resistor is respectively connected to the negative electrode of the second capacitor, the negative electrode of the third capacitor and one end of the sixth resistor, and is grounded, and the other end of the fifth resistor is respectively connected to the other end of the sixth resistor and the controller.

7. The method according to claim 4, characterized in that The infrared receiving circuit comprises a third power supply, a fourth power supply, an infrared receiving tube, a seventh resistor, an eighth resistor, a ninth resistor, a fourth capacitor and a fifth capacitor; The third power supply is connected to one end of the seventh resistor, the other end of the seventh resistor is respectively connected to the third pin of the infrared receiving tube and the positive electrode of the fourth capacitor, the second pin of the infrared receiving tube is respectively connected to the negative electrode of the fourth capacitor and the negative electrode of the fifth capacitor, and is grounded, the first pin of the infrared receiving tube is respectively connected to one end of the eighth resistor and one end of the ninth resistor, the other end of the eighth resistor is connected to the fourth power supply, and the other end of the ninth resistor is respectively connected to the positive electrode of the fifth capacitor and the controller.

8. A device for calibrating infrared gestures, characterized in that: The device is applied to a system for calibrating infrared gestures, the system comprising a range hood and a tooling, the range hood being provided with an infrared transmitting tube and an infrared receiving tube, the tooling being provided at a preset distance directly opposite to the infrared transmitting tube of the range hood, the tooling being used to reflect the infrared signal emitted by the infrared transmitting tube, the device comprising: A first adjustment module is used to adjust the transmission power of the infrared transmitting tube to the maximum transmission power when in the infrared automatic correction mode, and control the infrared transmitting tube to send infrared signals according to the maximum transmission power; A judging module, used for judging whether the infrared receiving tube has received the infrared signal sent by the infrared transmitting tube; a reduction module, for reducing the transmission power of the infrared transmitting tube according to a preset power reduction threshold if the infrared signal is detected, and controlling the infrared transmitting tube to transmit the infrared signal according to the transmission power before the reduction, and executing the step of determining whether the infrared receiving tube detects the infrared signal sent by the infrared transmitting tube until the infrared receiving tube does not receive the infrared signal, and controlling the infrared receiving tube to continue to receive the infrared signal; The accumulation module is used to accumulate the number of times the infrared signal is not received when it is detected that the infrared receiving tube does not receive the infrared signal. If the number is greater than a preset number threshold, the transmission power of the infrared transmitting tube is determined according to the transmission power before the last reduction, and the infrared automatic correction mode is exited.

9. The device according to claim 8, characterized in that The tooling is provided with an infrared transmitting tube and an infrared receiving tube, and the device also includes: The second adjustment module is used to enter the debugging mode and adjust the transmission power of the infrared transmitting tube of the range hood and the infrared transmitting tube of the tool to the maximum transmission power after detecting that the infrared receiving tube of the range hood receives the specific tool instruction sent by the tool; A determination module, used to determine whether the range hood has received the handshake instruction sent by the tooling, if the range hood has received the handshake instruction, it is adjusted to a state of waiting to receive the instruction, and the waiting time is accumulated, if the waiting time is greater than a preset time threshold, the transmission power of the infrared transmitting tube of the range hood and the infrared transmitting tube of the tooling is adjusted to an initial power, and the debugging mode is exited; The sending module is used to collect information data if the range hood receives an information collection instruction of the infrared signal sent by the tooling, and send the information data of the infrared signal with a preset number of thresholds to the tooling, and execute the step of adjusting to the state of waiting to receive instructions.

10. The device according to claim 8, characterized in that The accumulation module is specifically used for: The product value of the emission power before the last reduction and the preset power error ratio is determined as the emission power of the infrared emission tube.

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