CN211476032U - Gesture recognition control device of range hood - Google Patents
Gesture recognition control device of range hood Download PDFInfo
- Publication number
- CN211476032U CN211476032U CN201921534919.3U CN201921534919U CN211476032U CN 211476032 U CN211476032 U CN 211476032U CN 201921534919 U CN201921534919 U CN 201921534919U CN 211476032 U CN211476032 U CN 211476032U
- Authority
- CN
- China
- Prior art keywords
- driving
- circuit
- range hood
- driving circuit
- infrared
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000006870 function Effects 0.000 description 21
- 238000000034 method Methods 0.000 description 11
- 230000035945 sensitivity Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 230000004044 response Effects 0.000 description 7
- 230000002238 attenuated effect Effects 0.000 description 5
- 102100025032 Dynein regulatory complex protein 1 Human genes 0.000 description 2
- 102100025018 Dynein regulatory complex subunit 2 Human genes 0.000 description 2
- 101000908373 Homo sapiens Dynein regulatory complex protein 1 Proteins 0.000 description 2
- 101000908413 Homo sapiens Dynein regulatory complex subunit 2 Proteins 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Images
Landscapes
- Ventilation (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
The utility model discloses a range hood's gesture recognition controlling means, wherein controlling means includes controller, first drive circuit, second drive circuit, infrared emission circuit and timing module at least, wherein the controller passes through respectively first drive circuit with second drive circuit with infrared emission circuit electric connection, just first drive circuit's drive current with second drive circuit's drive current is inequality, the timing module with controller electric connection is used for rightly first drive circuit with second drive circuit's operating time carries out the accumulative total timing, and it can solve the problem that gesture recognition performance descends to a certain extent, does benefit to and promotes product reliability.
Description
Technical Field
The utility model relates to a range hood technical field especially relates to a range hood's gesture recognition controlling means.
Background
The range hood with the infrared gesture control function, which is designed by utilizing the infrared transmitting and receiving principle, appears in the market at present. Consumers purchase the range hoods with the infrared gesture control function, and can utilize gestures to realize the operation of certain functions of the range hoods, such as waving hands to stir-fry, waving hands to increase air quantity gears, waving hands to turn on and off the machine and other functions.
The low-cost scheme of the infrared gesture control function of the existing range hood is realized by infrared components, namely, the infrared components are formed by an infrared transmitting tube and an infrared receiving tube, two groups of infrared components are distributed on the left side and the right side of a panel, gesture actions can be judged by a control device according to the time logic relation of infrared reflection signals received by the two groups of infrared components, and therefore the range hood responds to corresponding operations.
In the existing infrared gesture control schemes of the range hood on the market at present, one scheme is that the infrared gesture control function is effective as long as the range hood is in a standby state. Namely, as long as the range hood is plugged in a power supply, the infrared gesture control function is started. According to the technical scheme, because relevant components and parts of the infrared gesture control function comprise the infrared transmitting tube, the infrared receiving tube and the like which are always in a working state, a consumer can start the fan to operate by waving his hand, the infrared gesture control function can be realized without starting the range hood again, and great convenience is brought to the consumer. However, the scheme also has a defect that because related components of the infrared gesture control function include an infrared transmitting tube, an infrared receiving tube and the like which are always in a working state, when the components are in the working state for more than a certain time, the response distance and the sensitivity of the infrared gesture control function are influenced to a certain degree due to attenuation of the infrared transmitting tube, the infrared receiving tube and the like.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the problems that exist among the prior art to a certain extent at least, for this reason, the utility model aims to provide a range hood's gesture recognition controlling means, it can solve the problem that gesture recognition performance descends to a certain extent, does benefit to and promotes the product reliability.
The above purpose is realized by the following technical scheme:
the utility model provides a range hood's gesture recognition controlling means, includes controller, first drive circuit, second drive circuit, infrared transmitting circuit and timing module at least, wherein the controller passes through respectively first drive circuit with second drive circuit with infrared transmitting circuit electric connection, just first drive circuit's drive current with second drive circuit's drive current is inequality, the timing module with controller electric connection is used for right first drive circuit with second drive circuit's operating time carries out the accumulative total timing.
In some embodiments, the driving current of the first driving circuit is smaller than the driving current of the second driving circuit, the controller drives the infrared emission circuit to operate through the first driving circuit, and when the operating time of the first driving circuit reaches a preset timing time threshold, the controller drives the infrared emission circuit to operate through the second driving circuit.
In some embodiments, the infrared emission circuit includes at least 2 infrared emission branches arranged in parallel, the first driving circuit includes a first transistor and at least 2 first driving resistors, each of the first driving resistors is respectively connected in series with a corresponding infrared emission branch, and the first transistor is connected to the first driving resistors arranged in parallel.
In some embodiments, the second driving circuit includes a second transistor and at least 2 second driving resistors, each of the second driving resistors is connected in series with a corresponding infrared emission branch, the second transistor is connected to the second driving resistors arranged in parallel, and a resistance of the first driving resistor is greater than a resistance of the second driving resistor.
In some embodiments, the controller further comprises a storage module connected with the controller for storing data.
Compared with the prior art, the utility model discloses an at least including following beneficial effect:
1. the utility model discloses a range hood's gesture recognition controlling means, a reasonable design, it is ingenious, carry out the accumulative total timing through timing module to drive circuit's operating time, operating time when drive circuit reaches predetermined timing time threshold, the controller then switches drive circuit drive infrared transmission circuit work, can solve the problem that gesture recognition performance descends from this to a certain extent, specifically for solving because infrared transmission circuit's decay leads to infrared gesture recognition performance response distance's shortening and the problem of the decline of sensitivity, make range hood's gesture recognition function can not descend because range hood uses after the longer time, and then do benefit to and promote product reliability, bring better experience for the user.
Drawings
Fig. 1 is a schematic structural diagram of a control device in an embodiment of the present invention;
fig. 2 is a schematic flow chart of a control method according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a control device according to an embodiment of the present invention.
Detailed Description
The present invention is illustrated by the following examples, but the present invention is not limited to these examples. To the embodiment of the present invention, modify or replace some technical features, without departing from the spirit of the present invention, it should be covered in the technical solution scope of the present invention.
The first embodiment is as follows: as shown in fig. 1, fig. 2 and fig. 3, the present embodiment provides a gesture recognition control device for a range hood, which at least includes a controller, a first driving circuit, a second driving circuit, an infrared emission circuit and a timing module, wherein the controller is electrically connected to the infrared emission circuit through the first driving circuit and the second driving circuit, respectively, a driving current of the first driving circuit is different from a driving current of the second driving circuit, and the timing module is electrically connected to the controller and configured to perform cumulative timing on operating times of the first driving circuit and the second driving circuit.
The range hood's of this embodiment gesture recognition controlling means, reasonable in design, it is ingenious, carry out the accumulative total timing through the operating time of timing module to drive circuit, operating time when drive circuit reaches predetermined timing time threshold, the controller then switches drive circuit drive infrared transmitting circuit work, can solve the problem that gesture recognition performance descends from this to a certain extent, specifically for solving because infrared transmitting circuit's decay leads to the shortening of infrared gesture recognition performance response distance and the problem of the decline of sensitivity, make range hood's gesture recognition function can not descend because range hood uses after the longer time, and then do benefit to and promote product reliability, bring better experience for the user.
In this embodiment, the driving current of the first driving circuit is smaller than the driving current of the second driving circuit, the controller drives the infrared emitting circuit to operate through the first driving circuit, and when the operating time of the first driving circuit reaches the preset timing time threshold, the controller drives the infrared emitting circuit to operate through the second driving circuit. When the range hood is started, as long as the range hood is in a power-on standby state, the controller drives the infrared emission circuit to work by taking the first drive circuit with relatively small drive current as the initial drive circuit, the infrared gesture recognition function can be started, the range hood does not need to be started in the working process, the timing module starts to perform accumulated timing, and the accumulated timing is stored in the storage module with EEPROM property to prevent the data from being reset after the range hood is powered off. When the accumulated timing reaches a preset timing time threshold, namely the infrared emission circuit is attenuated to a certain degree, the controller is used as a driving circuit through a second driving circuit with relatively large driving current to drive the infrared emission circuit to work, and the driving current to the infrared emission circuit is increased, so that the reduction of the emission distance and the sensitivity caused by the attenuation of the infrared emission circuit can be counteracted, and the purpose that the infrared gesture recognition function cannot be reduced in the whole life cycle process of the range hood is achieved.
Preferably, referring to fig. 2 in particular, the infrared emission circuit includes at least 2 infrared emission branches arranged in parallel, each infrared emission branch includes at least 1 infrared emission tube, the first driving circuit includes a first triode Q1 and at least 2 first driving resistors R1, R2, each first driving resistor R1, R2 is connected in series with the corresponding infrared emission branch, the collector of the first triode Q1 is connected with the first driving resistors R1, R2 arranged in parallel, and the purpose of adjusting the driving current of the first driving circuit is achieved by adjusting the resistance of the first driving resistors R1, R2.
More preferably, the second driving circuit includes a second transistor Q2 and at least 2 second driving resistors R3, R4, each of the second driving resistors R3, R4 is connected in series with a corresponding infrared emission branch, a collector of the second transistor Q2 is connected to the second driving resistors R3, R4 arranged in parallel, and the purpose of adjusting the magnitude of the driving current of the second driving circuit is achieved by adjusting the magnitudes of the resistances of the second driving resistors R3, R4.
In the embodiment, the resistance values of the first driving resistors R1 and R2 are greater than the resistance values of the second driving resistors R3 and R4, so that the driving current of the first driving circuit is smaller than the driving current of the second driving circuit.
Preferably, the range hood further comprises a storage module, wherein the storage module is connected with the controller and used for storing data to prevent accumulated timing data of the timing module from being cleared after the range hood is powered off, and therefore the safety and reliability of product use can be improved.
The resistance values of the first driving resistors R1 and R2 are the same, the resistance values of the second driving resistors R3 and R4 are the same, the resistance values of the first driving resistor R1 and the second driving resistor R3 are different, and the resistance values of the resistors R1-R4 determine the current of the infrared emission circuit and the emission distance of the infrared emission circuit. When the resistance value of the first driving resistor R1 is smaller than the resistance value of the second driving resistor R3, that is, the set of parameters of the first driving resistors R1 and R2 is used, the current of the infrared emission tube LED1 and LED2 is large, so the infrared emission power is large, and the emission distance is long, while when the set of parameters of the resistors R3 and R4 is used, the current of the infrared emission tube LED1 and LED2 is small, so the infrared emission power is small, and the emission distance is short; vice versa, when the resistance value of the first driving resistor R1 is greater than the resistance value of the second driving resistor R3, i.e., the set of parameters of the first driving resistors R1 and R2, the currents of the infrared emitting tube LED1 and LED2 are small, so the infrared emitting power is small, and the emitting distance is short, and when the set of parameters of the resistors R3 and R4 is adopted, the currents of the infrared emitting tube LED1 and LED2 are large, so the infrared emitting power is large, and the emitting distance is long.
Of course, more stages of circuit control may be performed, for example, three stages or four or more stages of current control may be selected, so that the control is more accurate and the principle is similar.
In one range hood, the infrared gesture recognition control device shown in this patent is adopted, a single chip microcomputer with an EEPROM memory function is adopted as a controller core in the control device, the control device is supplied with 5V power, a resistor R6 ═ R8 ═ 300 Ω, a resistor R1 ═ R2 ═ 300 Ω, a resistor R3 ═ R4 ═ 100 Ω, and a timing time threshold is set to 40000 hours (about 5 years). The driving current of the infrared emission tube of the DRC1 group is about 3V/600 Ω -5 mA, and the driving current of the infrared emission tube of the DRC2 group is about 3V/400 Ω -7.5 mA.
When the range hood is powered on for the first time, the single timing module starts timing, and at the moment, the single chip microcomputer of the control device switches the DRC1 group to be used as a driving circuit of the infrared emission tube, the driving circuit is 5mA, and as the infrared emission tube is new and the performance is not attenuated, the sensing distance and the sensing sensitivity of the infrared gesture recognition function are enough at the moment. As the time that the ir transmitting tube is operated increases, the performance of the ir transmitting tube slowly decays. Since the driving current does not reach the rated current of the infrared emission tube, the attenuation speed is slow. The preset range hood is powered on for 5 years (about 40000 hours), the attenuation degree of the infrared emission tube is large, and the response distance and the sensitivity of gesture induction can be influenced at the moment, so that the channel is switched to be a group of drive circuits of DRC2, the current for driving the infrared emission tube is larger than the initial drive current, the response distance and the sensitivity of the infrared gesture recognition function can be ensured to be compensated by increasing the drive current under the condition that the performance of the infrared emission tube is attenuated, and the performance of the infrared gesture can be ensured not to be influenced by time greatly in the whole life cycle process of the range hood.
The above is a two-segment current driving case, and a three-segment or even more-segment current driving mode can be performed according to actual conditions in the actual product development process, and the design mode is similar to the two-segment scheme.
Example two: as shown in fig. 1 to 3, the present embodiment provides a gesture recognition control method, which is applied to the control device described above, and the control method includes:
the controller drives the infrared emission circuit to work through the first driving circuit;
the timing module performs accumulated timing on the working time of the first driving circuit;
judging whether the work accumulated timing time of the first driving circuit reaches a timing time threshold value or not;
and determining whether the first driving circuit needs to be switched to the second driving circuit to drive the infrared emission circuit to work or not according to the judgment result.
The gesture recognition control method of the range hood of the embodiment is reasonable in design and ingenious, accumulated timing is carried out on the working time of the driving circuit through the timing module, the working time of the driving circuit reaches a preset timing time threshold value, the controller switches the driving circuit to drive the infrared emission circuit to work, the problem that the gesture recognition performance is reduced can be solved to a certain extent, the problems that the infrared gesture recognition performance response distance is shortened and the sensitivity is reduced due to attenuation of the infrared emission circuit are solved, the gesture recognition function of the range hood is enabled not to be reduced after the range hood is used for a long time, product reliability is improved, and better experience is brought to a user.
Preferably, the driving current of the first driving circuit is smaller than the driving current of the second driving circuit, the controller drives the infrared emission circuit to work through the first driving circuit, and when the working time of the first driving circuit reaches a preset timing time threshold, the controller drives the infrared emission circuit to work through the second driving circuit. When the range hood is started, as long as the range hood is in a power-on standby state, the controller drives the infrared emission circuit to work by taking the first drive circuit with relatively small drive current as the initial drive circuit, the infrared gesture recognition function can be started, the range hood does not need to be started in the working process, the timing module starts to perform accumulated timing, and the accumulated timing is stored in the storage module with EEPROM property to prevent the data from being reset after the range hood is powered off. When the accumulated timing reaches a preset timing time threshold, namely the infrared emission circuit is attenuated to a certain degree, the controller is used as a driving circuit through a second driving circuit with relatively large driving current to drive the infrared emission circuit to work, and the driving current to the infrared emission circuit is increased, so that the reduction of the emission distance and the sensitivity caused by the attenuation of the infrared emission circuit can be counteracted, and the purpose that the infrared gesture recognition function cannot be reduced in the whole life cycle process of the range hood is achieved.
Specifically, the step of determining whether the first driving circuit needs to be switched to the second driving circuit according to the determination result includes:
if the work accumulated timing time of the first driving circuit reaches the timing time threshold, the controller drives the infrared emission circuit to work through the second driving circuit;
if the work accumulated timing time of the first driving circuit does not reach the timing time threshold value, the controller drives the infrared emission circuit to work through the first driving circuit.
Therefore, the response distance and the sensitivity of the infrared gesture recognition function can be ensured to be compensated by increasing the driving current under the condition that the performance of the infrared emission tube is attenuated, so that the performance of the infrared gesture in the whole life cycle process of the range hood can not be greatly influenced by time.
Further, the step of performing cumulative timing on the working time of the first driving circuit by the timing module specifically includes:
the timing module times the working time of the first driving circuit, stores the timed time, and performs accumulated timing on the working time of the first driving circuit when the first driving circuit works again so as to prevent accumulated timing data of the timing module from being cleared after the oil smoke suction machine is powered off, thereby improving the safety and reliability of the use of the product.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (4)
1. The gesture recognition control device of the range hood is characterized by at least comprising a controller, a first driving circuit, a second driving circuit, an infrared emission circuit and a timing module, wherein the controller is electrically connected with the infrared emission circuit through the first driving circuit and the second driving circuit respectively, the driving current of the first driving circuit is different from the driving current of the second driving circuit, and the timing module is electrically connected with the controller and used for performing accumulated timing on the working time of the first driving circuit and the working time of the second driving circuit.
2. The gesture recognition control device of a range hood according to claim 1, wherein the infrared emission circuit comprises at least 2 infrared emission branches arranged in parallel, the first driving circuit comprises a first triode and at least 2 first driving resistors, each first driving resistor is respectively connected in series with the corresponding infrared emission branch, and the first triode is connected with the first driving resistors arranged in parallel.
3. The gesture recognition control device of the range hood according to claim 2, wherein the second driving circuit comprises a second triode and at least 2 second driving resistors, each second driving resistor is connected in series with the corresponding infrared emission branch, the second triode is connected with the second driving resistors which are arranged in parallel, and the resistance value of the first driving resistor is greater than that of the second driving resistor.
4. The gesture recognition control device of the range hood according to any one of claims 1 to 3, further comprising a storage module, wherein the storage module is connected with the controller for storing data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921534919.3U CN211476032U (en) | 2019-09-16 | 2019-09-16 | Gesture recognition control device of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921534919.3U CN211476032U (en) | 2019-09-16 | 2019-09-16 | Gesture recognition control device of range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211476032U true CN211476032U (en) | 2020-09-11 |
Family
ID=72372998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921534919.3U Active CN211476032U (en) | 2019-09-16 | 2019-09-16 | Gesture recognition control device of range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211476032U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645609A (en) * | 2019-09-16 | 2020-01-03 | 华帝股份有限公司 | Gesture recognition control device and control method of range hood |
-
2019
- 2019-09-16 CN CN201921534919.3U patent/CN211476032U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645609A (en) * | 2019-09-16 | 2020-01-03 | 华帝股份有限公司 | Gesture recognition control device and control method of range hood |
| CN110645609B (en) * | 2019-09-16 | 2024-06-14 | 华帝股份有限公司 | Gesture recognition control device and control method for range hood |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104678831B (en) | Electric cooking pot and its power interruption recovering device and power interruption recovering controlling method | |
| CN211476032U (en) | Gesture recognition control device of range hood | |
| CN101148965A (en) | Vehicle window drive clamping-proof control system and control method thereof | |
| CN102209416A (en) | Dimming system and control system and control method thereof | |
| CN105942583A (en) | Electronic cigarette and application method thereof | |
| Akinwole | Design, simulation and implementation of an Arduino microcontroller based automatic water level controller with I2C LCD display | |
| CN110645609A (en) | Gesture recognition control device and control method of range hood | |
| CN104863872B (en) | Electric fan and its control method | |
| CN106252997B (en) | Intelligent socket with abnormal protection and method for redefining key function | |
| CN110297445B (en) | Micro-control electric appliance with WiFi plugging module | |
| CN208176278U (en) | A kind of hair dryer | |
| CN106142020B (en) | Utilize the method for trigger control motor | |
| CN110673572A (en) | User programmable universal industrial controller device | |
| CN206004639U (en) | Power supply control circuit applied to photoelectric switch of air conditioner | |
| CN208384968U (en) | Nixie tube drive circuit and charger | |
| CN104184262B (en) | The motor of built-in drive circuit | |
| CN106201630A (en) | A kind of hand-held programmer for LED drive power and programmed method thereof | |
| CN106230425A (en) | A kind of band vibration touches switch on wall | |
| CN203658747U (en) | Low-cost and high-reliability automatic transfer switching equipment control system | |
| CN211903211U (en) | Fan controller of fan coil | |
| CN205862166U (en) | Multifunctional universal controller | |
| CN110761621A (en) | Full-automatic sliding cover wake-up circuit and device of intelligent lock and operation method of full-automatic sliding cover wake-up circuit | |
| CN210721094U (en) | Intelligent controller circuit | |
| CN1272744C (en) | Two-dimensional fuzzy controller based on storage address mapping | |
| CN201328108Y (en) | Intelligent switch for motorcycle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |