CN210717743U - Gesture control range hood system based on infrared geminate transistor transmitting-receiving principle - Google Patents
Gesture control range hood system based on infrared geminate transistor transmitting-receiving principle Download PDFInfo
- Publication number
- CN210717743U CN210717743U CN201921474184.XU CN201921474184U CN210717743U CN 210717743 U CN210717743 U CN 210717743U CN 201921474184 U CN201921474184 U CN 201921474184U CN 210717743 U CN210717743 U CN 210717743U
- Authority
- CN
- China
- Prior art keywords
- infrared
- receiving
- resistor
- tube
- transmitting
- 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
Images
Landscapes
- User Interface Of Digital Computer (AREA)
Abstract
The utility model relates to a gesture control lampblack absorber system based on infrared geminate transistor transmission-receiving principle belongs to range hood product field. The utility model discloses a transmitting unit, receiving element and little the control unit MCU, transmitting unit and receiving element all are connected with little the control unit MCU, and its structural feature lies in: the transmitting unit comprises a resistor R31, a resistor R39, an infrared light-emitting tube IR1 and a triode Q31, and the receiving unit comprises a resistor R33, a resistor R34, a resistor R35, a ceramic chip capacitor C31, a ceramic chip capacitor C32, an electrolytic capacitor E31 and an infrared receiving tube IRM 1. When cooking, the hand is stained with oil stain, flour and the like, or the panel is stained with dirt, the machine can be operated by hands after a while without touching the panel. Some normal limb actions in the cooking process can not cause the false operation of the cigarette machine.
Description
Technical Field
The utility model relates to a gesture control lampblack absorber system based on infrared geminate transistor transmission-receiving principle belongs to range hood product field.
Background
1. At present, most mainstream range hood products in the market adopt touch keys or entity keys, the two keys are required to be directly contacted with a panel by hands to realize human-computer interaction, certain oil stains and bacteria can be accumulated on the panel of the range hood due to the particularity of the kitchen environment, the hands can be stained with oil stains or other sundries in the cooking process, and the human-computer interaction friendliness is seriously influenced.
2. Some products sold on the market at present have gesture functions, but are easy to cause misoperation in the cooking process, and the reliability is poor.
In view of the above, patent document No. 201710651155.5 discloses a range hood with a gesture control function and a control method thereof, and the above-mentioned comparison document is liable to cause malfunction and is poor in reliability.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design reasonable, adopt based on two infrared geminate transistors transmission-receiving principle, adopt manchester's coding rule, through intelligent software algorithm, cooperate specific structure, develop a gesture control lampblack absorber technique, solve the vexation and the poor problem of reliability of direct hand contact oil smoke panel, improve the gesture control lampblack absorber system based on infrared geminate transistor transmission-receiving principle of human-computer interaction friendship nature.
The utility model provides a technical scheme that above-mentioned problem adopted is: this gesture control lampblack absorber system based on infrared geminate transistor transmission-receiving principle, including transmitting unit, receiving element and little the control unit MCU, transmitting unit and receiving element all are connected with little the control unit MCU, and its structural feature lies in:
the emitting unit comprises a resistor R31, a resistor R39, an infrared light-emitting tube IR1 and a triode Q31, one end of the resistor R31 is connected with +5V of a power supply of the emitting unit, the other end of the resistor R31 is connected with the anode of an infrared light-emitting tube IR1, the collector of the triode Q31 is connected with the cathode of the infrared light-emitting tube IR1, the emitter of the triode Q31 is grounded, the base of the triode Q31 is connected with one end of a resistor R39, and the other end of the resistor R39 is connected with the 19 th pin of the micro control unit MCU;
the receiving unit comprises a resistor R33, a resistor R34, a resistor R35, a ceramic chip capacitor C31, a ceramic chip capacitor C32, an electrolytic capacitor E31 and an infrared receiving tube IRM1, one end of the resistor R34 is connected with +5V of a power supply of the receiving unit, the other end of the resistor R34 is connected with a VCC pin of the infrared receiving tube IRM1, the electrolytic capacitor E31 and the ceramic chip capacitor C32 are connected in parallel and then are connected between the VCC pin and the GND pin of the infrared receiving tube IRM1, a 20 th pin of the micro control unit MCU is divided into two paths, one path is grounded through the capacitor C31, the other path is connected with one end of the resistor R35, the other end of the resistor R35 is divided into two paths, the other path is connected with an OUT output pin of the infrared receiving tube IRM1, the other path is connected with one end of the resistor R33, and the other end of the resistor R33 is connected with. When cooking, the hand is stained with oil stain, flour and the like, or the panel is stained with dirt, the machine can be operated by hands after a while without touching the panel. Some normal limb actions in the cooking process can not cause the false operation of the cigarette machine.
Further, the number of the transmitting units is two, the two transmitting units are respectively a left transmitting unit and a right transmitting unit, the number of the receiving units is two, and the two receiving units are respectively a left receiving unit and a right receiving unit.
Further, infrared emitting tube IR1 and infrared receiving tube IRM1 constitute infrared geminate transistors, infrared geminate transistors installs on the gesture shell, the gesture shell is installed on automatically controlled box.
Furthermore, the gesture shell is used for fixing the position of the infrared pair tube so as to achieve the purposes of avoiding light leakage and specifying the light emitting angle of the infrared emitting light tube.
Further, automatically controlled box is installed on the cigarette machine panel, be provided with the printing opacity region on the cigarette machine panel, the printing opacity regional subsides have the printing opacity facial mask of transmission infrared ray function to guarantee that infrared ray signal pierces through the printing opacity region and transmits.
Further, a computer board is installed in the electric control box and connected with the infrared pair tubes.
Further, the infrared light emitting tube IR1 is an infrared light emitting diode, and the triode Q31 is an NPN type triode.
Further, the panel of the cigarette machine is of a dark color and is of a light-tight structure.
Further, another technical object of the present invention is to provide a control method for controlling a range hood system by gestures based on the infrared pair tube transmitting-receiving principle.
The above technical object of the present invention can be achieved by the following technical solutions.
A control method for controlling a range hood system by gestures based on an infrared geminate transistor transmitting-receiving principle is characterized by comprising the following steps: the control method comprises the following steps:
I. after receiving the valid signal, any one infrared receiving tube IRM1 starts timing, and within the time of T1, the other infrared receiving tube IRM1 does not receive the valid signal, outputs an invalid control signal and restarts receiving the signal;
II. After receiving the effective signal, any one infrared receiving tube IRM1 starts timing, and another infrared receiving tube IRM1 receives the effective signal within T2 time, outputs an invalid control signal and times again;
III, after any infrared receiving tube IRM1 receives the effective signal, the other infrared receiving tube IRM1 also receives the effective signal at the time of T3, the effective gesture is output once, and the timing of T4 is started;
IV, if the condition III is satisfied again, but T4< T5, invalid signal data is output, and if only T4> T5, the condition III is satisfied, and the next valid gesture signal is output again.
Further, another technical object of the present invention is to provide a control method for controlling a range hood system by gestures based on the infrared pair tube transmitting-receiving principle.
The above technical object of the present invention can be achieved by the following technical solutions.
A control method for controlling a range hood system by gestures based on an infrared geminate transistor transmitting-receiving principle is characterized by comprising the following steps: the control method comprises the following steps:
I. the micro control unit MCU controls the infrared light emitting tube IR1 to continuously emit coded specific signals by outputting PWM waves;
II. The transmitting signal adopts a PWM wave with the frequency of 38K as a carrier wave, the duty ratio is D1, the micro control unit MCU controls and outputs the PWM wave when transmitting 0, the PWM wave is not output when transmitting 1, the specific signal consists of a start head code and data, and the interval time T is arranged between the continuously transmitted signals;
III, when an object passes through the upper part of the light-transmitting area, a signal emitted by the infrared light emitting tube IR1 is reflected back, the infrared receiving tube IRM1 automatically decodes the signal after receiving the signal, and the decoded data is transmitted to the MCU for processing;
IV, analyzing and processing the data by the MCU, and when the head code and the data content are correct, considering the head code and the data content as effective specific signals, outputting an effective gesture once, and starting timing T6;
v, the condition IV is satisfied again, but T6< T5 outputs invalid signal data, and only if T6> T5, the condition IV is satisfied and the next valid gesture signal is output again.
Compared with the prior art, the utility model has the advantages of it is following:
1. the cigarette machine can be operated by hand waving, so that the direct contact with a panel of the cigarette machine and the contamination of oil stains and bacteria are avoided, and the cigarette machine is convenient and applicable.
2. The gesture control technology adopts an infrared transmitting-receiving principle, Manchester coding rule encoding data and an intelligent software algorithm, the recognition rate is up to more than 99%, and false operation is not easy to occur.
3. The structural part of the gesture shell is designed independently, so that the transplantation and development are facilitated.
4. The receiving tube in the infrared geminate transistor has the functions of shielding and decoding, and is high in anti-interference performance and cost performance.
Drawings
Fig. 1 is a schematic view of an installation structure of an infrared pair tube according to an embodiment of the present invention.
Figure 2 is the structure schematic diagram of the cigarette machine panel of the embodiment of the invention.
Fig. 3 is a circuit diagram of the gesture control range hood system of the embodiment of the present invention.
Fig. 4 is a schematic diagram of a micro control unit according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of an output PWM wave according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of an encoding rule according to an embodiment of the present invention.
Fig. 7 is a schematic diagram of certain signals of an embodiment of the present invention.
In the figure: the device comprises an infrared pair tube 1, a gesture shell 2, an electric control box 3, a smoke machine panel 4, a light-transmitting area 5, a light-transmitting mask 6 and a computer board 7.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Examples are given.
Referring to fig. 1 to 7, it should be understood that the structures, ratios, sizes, etc. shown in the drawings attached to the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essence, and any modification of the structures, changes of the ratio relationship, or adjustment of the sizes should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, in the present specification, if there are terms such as "upper", "lower", "left", "right", "middle" and "one", they are used for clarity of description only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are considered as the scope of the present invention without substantial changes in the technical content.
The gesture control range hood system based on the infrared geminate transistor transmitting-receiving principle in the embodiment comprises a transmitting unit, a receiving unit and a micro control unit MCU, wherein the transmitting unit and the receiving unit are connected with the micro control unit MCU; the number of the transmitting units is two, the two transmitting units are respectively a left transmitting unit and a right transmitting unit, the working principle of the left transmitting unit is the same as that of the right transmitting unit, the number of the receiving units is two, the two receiving units are respectively a left receiving unit and a right receiving unit, and the working principle of the left receiving unit is the same as that of the right receiving unit. The arrangement of two transmitting units and two receiving units can avoid malfunction.
The emitting unit in the embodiment comprises a resistor R31, a resistor R39, an infrared light emitting tube IR1 and a triode Q31, wherein one end of the resistor R31 is connected with +5V of a power supply of the emitting unit, the other end of the resistor R31 is connected with the anode of an infrared light emitting tube IR1, the collector of the triode Q31 is connected with the cathode of the infrared light emitting tube IR1, the emitter of the triode Q31 is grounded, the base of the triode Q31 is connected with one end of a resistor R39, and the other end of the resistor R39 is connected with a 19 th pin of the MCU; the infrared light emitting tube IR1 is an infrared light emitting diode, and the transistor Q31 is an NPN type transistor.
R31 is used for adjusting the emission current size of infrared luminotron IR1 to realize the regulation to the gesture recognition distance far and near, the 19 th pin of little control unit MCU passes through resistance R39 and is connected with triode Q31's base, when the circuit is worked, little control unit MCU realizes the transmission of signal through the switching on or off of PWM ripples control triode Q31 of 19 th pin output, the transmission signal adopts the PWM ripples that the frequency is 38K as the carrier, the duty cycle is D1 (50%), little control unit MCU control output PWM ripples when transmitting 0, do not output PWM ripples when transmitting 1.
The receiving unit in the embodiment comprises a resistor R33, a resistor R34, a resistor R35, a ceramic chip capacitor C31, a ceramic chip capacitor C32, an electrolytic capacitor E31 and an infrared receiving tube IRM1, wherein one end of the resistor R34 is connected with +5V of a power supply of the receiving unit, the other end of the resistor R34 is connected with a VCC pin of the infrared receiving tube IRM1, the electrolytic capacitor E31 and the ceramic chip capacitor C32 are connected in parallel and then connected between the VCC pin and a GND pin of the infrared receiving tube IRM1, a 20 th pin of the micro control unit MCU is divided into two paths, one path is grounded through the capacitor C31, the other path is connected with one end of a resistor R35, the other end of the resistor R35 is divided into two paths, one path is connected with an OUT output pin of the infrared receiving tube IRM1, the other path is connected with one end of the resistor R33, and the other end of the resistor.
The resistor R34, the electrolytic capacitor E31 and the ceramic chip capacitor C32 form an RC filter, a power supply supplies power to the infrared receiving tube IRM1 after passing through the RC filter, an anti-interference effect can be achieved, the infrared receiving tube IRM1 is an infrared receiving tube with shielding and an automatic decryption function and is used for receiving and automatically decoding received signals, and after the signals are decoded, the signals are filtered by the RC filter consisting of the resistor R35 and the ceramic chip capacitor C31 and then sent to the MCU for processing.
In the embodiment, an infrared light emitting tube IR1 and an infrared receiving tube IRM1 form an infrared pair of tubes 1, the infrared pair of tubes 1 are arranged on a gesture shell 2, the gesture shell 2 is provided with two groups of gesture shells 2, the two groups of gesture shells 2 are of the same structure which is independently designed and detachable, the gesture shell 2 is used for fixing the positions of the infrared pair of tubes 1 so as to achieve the purposes of avoiding light leakage and specifying the light emitting angle of an infrared emitting tube, and the gesture shell 2 is arranged on an electric control box 3; a computer board 7 is installed in the electric control box 3, and the computer board 7 is connected with the infrared pair tubes 1.
The electric control box 3 in the embodiment is arranged on a panel 4 of the cigarette machine, and the panel 4 of the cigarette machine is of a dark color and is of a light-tight structure; a light-transmitting area 5 is arranged on the panel 4 of the cigarette machine, and a light-transmitting mask 6 with an infrared ray transmitting function is pasted on the light-transmitting area 5 to ensure that an infrared ray signal penetrates through the light-transmitting area 5 to be transmitted; and the light transmittance consistency of the light-transmitting mask 6 is better, and the consistency of the gesture recognition distance can be ensured.
The micro control unit MCU controls the two groups of infrared light emitting tubes IR1 to continuously emit data at the same time, the emitted data adopts PWM waves with the frequency of 38K as carriers, the duty ratio is D1, the MCU controls the output of the PWM waves when emitting 0, and does not output the PWM waves when emitting 1, see schematic diagram 5.
When an object passes over the light-transmitting area 5, the signal emitted from the infrared light emitting tube IR1 is reflected, and then the infrared receiving tube IRM1 can determine whether the object passes through the light-transmitting area if the reflected signal is received.
The particular signal transmitted is encoded using the Manchester encoding rule, which is shown in detail in FIG. 6. A complete effective specific signal is formed by the start head code + data, the specific signal of the infrared pair tube 1 is shown in detail in FIG. 7, and the interval time T is needed between two groups of specific signals continuously transmitted by the same end. The infrared receiving tube IRM1 of the infrared pair tube 1 receives data in real time and decodes automatically, and when the micro control unit MCU judges that the received signal is a specific effective signal, the signal is processed by adopting an intelligent algorithm.
In this embodiment, a control method for controlling a range hood system by a gesture based on an infrared geminate transistor transmitting-receiving principle includes:
I. after receiving the valid signal, any infrared receiving tube IRM1 starts timing, and within T1 time (250 ms), another infrared receiving tube IRM1 does not receive the valid signal, outputs an invalid control signal, and restarts receiving the signal;
II. After receiving the valid signal, any one infrared receiving tube IRM1 starts timing, and another infrared receiving tube IRM1 receives the valid signal within T2 time (30 ms), outputs an invalid control signal and times again;
III, after any infrared receiving tube IRM1 receives the effective signal, and the other infrared receiving tube IRM1 also receives the effective signal in the time T3 (T2 < T3< T1), the effective gesture is output once, and the timing T4 is started at the same time;
IV, if the condition III is satisfied again, but T4< T5(500 ms), invalid signal data is output, and if only T4> T5, the condition III is satisfied, and the next valid gesture signal is output again.
In this embodiment, another control method for controlling a range hood system by a gesture based on an infrared geminate transistor transmitting-receiving principle includes the following steps:
I. the micro control unit MCU controls the infrared light emitting tube IR1 to continuously emit coded specific signals by outputting PWM waves;
II. The transmitting signal adopts a PWM wave with the frequency of 38K as a carrier wave, the duty ratio is D1 (50%), the micro control unit MCU controls and outputs the PWM wave when transmitting 0, the PWM wave is not output when transmitting 1, the specific signal consists of a start head code and data, and the interval time T is arranged between the continuously transmitted signals;
III, when an object passes through the upper part of the light-transmitting area 5, a signal emitted by the infrared light emitting tube IR1 is reflected back, the infrared receiving tube IRM1 automatically decodes the signal after receiving the signal, and the decoded data is transmitted to the MCU for processing;
IV, analyzing and processing the data by the MCU, and when the head code and the data content are correct, considering the head code and the data content as effective specific signals, outputting an effective gesture once, and starting timing T6;
v, the condition IV is satisfied again, but T6< T5 outputs invalid signal data, and only if T6> T5, the condition IV is satisfied and the next valid gesture signal is output again.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the patent idea of the utility model are included in the protection scope of the patent of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (8)
1. The utility model provides a gesture control lampblack absorber system based on infrared geminate transistor transmission-receiving principle, includes transmitting unit, receiving element and little the control unit MCU, transmitting unit and receiving element all are connected with little the control unit MCU, its characterized in that:
the emitting unit comprises a resistor R31, a resistor R39, an infrared light-emitting tube IR1 and a triode Q31, one end of the resistor R31 is connected with +5V of a power supply of the emitting unit, the other end of the resistor R31 is connected with the anode of an infrared light-emitting tube IR1, the collector of the triode Q31 is connected with the cathode of the infrared light-emitting tube IR1, the emitter of the triode Q31 is grounded, the base of the triode Q31 is connected with one end of a resistor R39, and the other end of the resistor R39 is connected with the 19 th pin of the micro control unit MCU;
the receiving unit comprises a resistor R33, a resistor R34, a resistor R35, a ceramic chip capacitor C31, a ceramic chip capacitor C32, an electrolytic capacitor E31 and an infrared receiving tube IRM1, one end of the resistor R34 is connected with +5V of a power supply of the receiving unit, the other end of the resistor R34 is connected with a VCC pin of the infrared receiving tube IRM1, the electrolytic capacitor E31 and the ceramic chip capacitor C32 are connected in parallel and then are connected between the VCC pin and the GND pin of the infrared receiving tube IRM1, a 20 th pin of the micro control unit MCU is divided into two paths, one path is grounded through the capacitor C31, the other path is connected with one end of the resistor R35, the other end of the resistor R35 is divided into two paths, the other path is connected with an OUT output pin of the infrared receiving tube IRM1, the other path is connected with one end of the resistor R33, and the other end of the resistor R33 is connected with.
2. The gesture control range hood system based on the infrared pair tube transmitting-receiving principle as claimed in claim 1, wherein: the number of the transmitting units is two, the two transmitting units are respectively a left transmitting unit and a right transmitting unit, the number of the receiving units is two, and the two receiving units are respectively a left receiving unit and a right receiving unit.
3. The gesture control range hood system based on the infrared pair tube transmitting-receiving principle as claimed in claim 1, wherein: infrared emitting tube IR1 and infrared receiving tube IRM1 constitute infrared geminate transistors (1), infrared geminate transistors (1) are installed on gesture shell (2), gesture shell (2) are installed on automatically controlled box (3).
4. The gesture control range hood system based on the infrared pair tube transmitting-receiving principle as claimed in claim 3, wherein: the gesture shell (2) is used for fixing the position of the infrared pair tube (1) so as to achieve the purposes of avoiding light leakage and specifying the light emitting angle of the infrared emitting light tube.
5. The gesture control range hood system based on the infrared pair tube transmitting-receiving principle as claimed in claim 3, wherein: automatically controlled box (3) are installed on cigarette machine panel (4), be provided with printing opacity region (5) on cigarette machine panel (4), printing opacity region (5) are pasted printing opacity facial mask (6) that have transmission infrared ray function to guarantee that infrared signal pierces through printing opacity region (5) and transmits.
6. The gesture control range hood system based on the infrared pair tube transmitting-receiving principle as claimed in claim 3, wherein: a computer board (7) is installed in the electric control box (3), and the computer board (7) is connected with the infrared pair tubes (1).
7. The gesture control range hood system based on the infrared pair tube transmitting-receiving principle as claimed in claim 1, wherein: the infrared light emitting tube IR1 is an infrared light emitting diode, and the triode Q31 is an NPN type triode.
8. The gesture control range hood system based on the infrared pair tube transmitting-receiving principle as claimed in claim 5, wherein: the panel (4) of the cigarette machine is of a dark color and is of a light-tight structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921474184.XU CN210717743U (en) | 2019-09-05 | 2019-09-05 | Gesture control range hood system based on infrared geminate transistor transmitting-receiving principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921474184.XU CN210717743U (en) | 2019-09-05 | 2019-09-05 | Gesture control range hood system based on infrared geminate transistor transmitting-receiving principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210717743U true CN210717743U (en) | 2020-06-09 |
Family
ID=70966909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921474184.XU Active CN210717743U (en) | 2019-09-05 | 2019-09-05 | Gesture control range hood system based on infrared geminate transistor transmitting-receiving principle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210717743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513742A (en) * | 2019-09-05 | 2019-11-29 | 杭州德意电器股份有限公司 | A kind of gesture control kitchen ventilator system and control method based on infrared tube send-receive principle |
-
2019
- 2019-09-05 CN CN201921474184.XU patent/CN210717743U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513742A (en) * | 2019-09-05 | 2019-11-29 | 杭州德意电器股份有限公司 | A kind of gesture control kitchen ventilator system and control method based on infrared tube send-receive principle |
| CN110513742B (en) * | 2019-09-05 | 2024-05-14 | 杭州德意智家股份有限公司 | Gesture control range hood system and control method based on infrared geminate transistor transmitting-receiving principle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103345360B (en) | A kind of intelligent terminal touch screen gesture identification method | |
| JP3109027B2 (en) | Optical communication device | |
| CN102135842B (en) | Synchronous light pen electronic whiteboard system | |
| CN210717743U (en) | Gesture control range hood system based on infrared geminate transistor transmitting-receiving principle | |
| CN105353876A (en) | Multi-point light sensation based spatial gesture identification control system and method | |
| CN109246525A (en) | Headset control method, device and headphone based on gesture | |
| CN104503267A (en) | Electric appliance equipment and power-on/standby control method thereof | |
| CN110513742B (en) | Gesture control range hood system and control method based on infrared geminate transistor transmitting-receiving principle | |
| CN103152625B (en) | Television system, Portable intelligent terminal, intelligent TV set, man-machine interactive system | |
| CN203643947U (en) | Sensing identification circuit and device as well as mobile terminal | |
| CN103838402A (en) | Photoelectric wired mouse special for RS232 interface and use method thereof | |
| WO2021179960A1 (en) | Method for detecting touch-control position of active pen, and electronic terminal | |
| CN209821810U (en) | Infrared touch frame all-in-one | |
| CN104023256A (en) | Touch screen remote control unit | |
| CN102932687A (en) | Method and system for realizing mouse function by using television infrared receiving head | |
| CN210667753U (en) | Kitchen utensil capable of automatically sensing bright screen | |
| CN214851929U (en) | Be applied to intelligent desk lamp control circuit of correcting position of sitting | |
| CN207475769U (en) | Speech-sound intelligent remote controler | |
| CN203733080U (en) | Photoelectric mouse special for RS232 interface | |
| CN215929686U (en) | Integrated kitchen range | |
| CN105046178A (en) | High-speed card reader realization method through frequency reduction of STM32 | |
| CN203299786U (en) | Electronic whiteboard system | |
| WO2019020124A1 (en) | Touch-control presenter, and operating instruction thereof | |
| CN204009831U (en) | Three positioning component optical multi-touch electronic whiteboards | |
| CN220965212U (en) | Human response intelligence switch in a poor light |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |