A gesture recognition device and recognition method with infrared remote control receiving function

Abstract

The present invention discloses a gesture recognition device with an infrared remote control receiving function, comprising a controller, an infrared remote control, at least two infrared transmitting units and at least one infrared receiving unit; the infrared transmitting unit is used to transmit an infrared gesture signal to a detection object; the infrared remote control is used to transmit an infrared remote control signal; the infrared receiving unit is used to receive the infrared gesture signal transmitted by the infrared transmitting unit and / or the infrared remote control signal reflected by the detection object, and perform signal processing on the received infrared gesture signal and / or infrared remote control signal, and output the processed signal to the controller; the controller is used to receive the signal output by the infrared receiving unit, and identify the infrared gesture signal and / or infrared remote control signal, and output the identified infrared gesture signal and / or infrared remote control signal to a host computer, or output a control signal corresponding to the infrared gesture signal and / or infrared remote control signal to a drive execution unit.

Description

Technical Field

[0001] The present invention relates to the technical field of gesture recognition, and in particular to a gesture recognition device and a recognition method with an infrared remote control receiving function. Background Art

[0002] Infrared gesture recognition is increasingly widely used in human-machine interfaces due to its good user experience and simple technical solutions; Figure 1 As shown, the infrared gesture recognition sensor 1 generally includes at least two infrared emitting units arranged in a certain position relationship, such as Figure 1 The first infrared emitting unit 11 and the second infrared emitting unit 12, and at least one infrared receiving unit 13; the first infrared emitting unit 11 includes a first infrared emitting diode 111 and a first driving circuit 112, and the second infrared emitting unit 12 includes a second infrared emitting diode 121 and a second driving circuit 121; the first infrared emitting unit 11 and the second infrared emitting unit 12 are controlled by the controller 14 to transmit infrared light signals to the detection object 15 in a time-sharing manner; the infrared receiving unit 13 includes a photosensitive diode 131 and a signal conditioning circuit 132, and the photosensitive diode 131 is reflected by the detection object 15. The infrared light signal is converted into an electrical signal, and the signal conditioning circuit 132 amplifies and filters the electrical signal and then sends it to the controller 14; the controller 14 identifies and determines the input gesture signal according to the amplitude of the output signal of the infrared receiving unit 13 and the sequence of the infrared light signals received from the first infrared emitting unit 11 and the second infrared emitting unit 12, and outputs the corresponding control signal to the host computer 16 or directly drives the execution unit 17 according to the gesture signal; the first infrared emitting unit 11 and the second emitting unit 12 are 40 mm apart, and the infrared receiving unit 13 is located in the middle of the line connecting the two infrared emitting units.

[0003] In some applications, in addition to infrared gesture recognition, infrared remote control systems are also used as human-machine interfaces; Figure 2 As shown, the infrared remote control system includes an infrared remote controller 22 and an infrared remote control receiving unit 24. The infrared remote control receiving unit 24 includes an infrared remote control receiving sensor 21 and a decoding circuit 23. The infrared remote control receiving sensor 21 includes a photodiode 212 and a preamplifier circuit 211 dedicated to infrared remote control reception. The infrared remote controller 22 transmits a pre-encoded infrared remote control signal. The photodiode 212 converts the infrared remote control signal transmitted by the infrared remote controller 22 into an electrical signal. The infrared remote control receiving dedicated amplifier circuit 211 amplifies, demodulates, and shapes the signal and then outputs it to the decoding circuit 23. The decoding circuit 23 completes the decoding.

[0004] A panel made of plastic or glass is usually installed in front of the infrared gesture recognition sensor and the infrared remote control receiving sensor. In order to form a path for infrared light, an optical window needs to be opened on the panel. The existing technical solutions usually use independent infrared gesture recognition sensors and infrared remote control receiving sensors, which means that more or larger optical windows need to be opened on the panel, reducing the aesthetics of the panel.

[0005] On the other hand, infrared gesture recognition modules usually use 850nm or 940nm wavelengths, and infrared remote control systems usually use 940nm wavelengths. The two wavelengths are the same or similar, which can easily interfere with each other, resulting in gesture signals or infrared remote control signals not being correctly recognized, affecting the user experience. Summary of the invention

[0006] The purpose of the present invention is to provide a gesture recognition device and a recognition method with an infrared remote control receiving function in view of the defects of the prior art.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A gesture recognition device with an infrared remote control receiving function comprises a controller, an infrared remote control, at least two infrared transmitting units and at least one infrared receiving unit; the at least two infrared transmitting units and the at least one infrared receiving unit are arranged in a preset arrangement, the infrared receiving unit is connected to the infrared transmitting unit and the infrared remote control respectively, and the controller is connected to the infrared receiving unit and the infrared transmitting unit respectively;

[0009] An infrared transmitting unit, used for transmitting infrared gesture signals to a detection object;

[0010] Infrared remote control, used to transmit infrared remote control signals;

[0011] an infrared receiving unit, used to receive the infrared gesture signal emitted by the infrared transmitting unit and / or the infrared remote control signal emitted by the infrared remote control reflected by the detection object, perform signal processing on the received infrared gesture signal and / or infrared remote control signal, and output the processed signal to the controller;

[0012] The controller is used to receive the signal output by the infrared receiving unit, and identify the infrared gesture signal and / or infrared remote control signal, output the identified infrared gesture signal and / or infrared remote control signal to the host computer, or output the control signal corresponding to the infrared gesture signal and / or infrared remote control signal to the drive execution unit.

[0013] Furthermore, the controller is also used to control the infrared emitting unit to emit infrared gesture signals in a time-sharing manner.

[0014] Furthermore, the infrared emitting unit includes an infrared emitting diode and a driving circuit;

[0015] A driving circuit, used for providing a current signal to the infrared emitting diode;

[0016] The infrared emitting diode is connected to the driving circuit and is used for emitting infrared light.

[0017] Furthermore, the infrared receiving unit includes a photosensitive diode and a signal processing circuit;

[0018] A photosensitive diode is used to receive infrared gesture signals emitted by the infrared transmitting unit and infrared remote control signals emitted by the infrared remote controller reflected by the detection object;

[0019] The signal processing circuit is connected to the photosensitive diode and is used for processing the infrared gesture signal and the infrared remote control signal received by the photosensitive diode.

[0020] Further, the signal processing circuit includes a transimpedance amplifier TIA, an infrared remote control signal processing unit, and an infrared gesture signal processing unit;

[0021] The signal processing circuit processes the infrared gesture signal and the infrared remote control signal by amplifying the infrared gesture signal and the infrared remote control signal in turn through a transimpedance amplifier TIA and then dividing the amplified ...

[0022] Furthermore, the infrared gesture signal processing unit includes a first bandpass filter BPF1 and an AD converter; one end of the transimpedance amplifier TIA is connected to one end of the first bandpass filter BPF1, and the other end of the first bandpass filter BPF1 is connected to the AD converter;

[0023] The infrared remote control signal processing unit includes a voltage-controlled amplifier VCA, a second band-pass filter BPF2, and a comparator; one end of the transimpedance amplifier TIA is connected to one end of the voltage-controlled amplifier VCA, the other end of the voltage-controlled amplifier VCA is connected to one end of the second band-pass filter BPF2, and the other end of the second band-pass filter BPF2 is connected to the comparator.

[0024] Furthermore, the infrared remote control signal processing unit also includes an automatic gain control AGC, one end of the automatic gain control AGC is connected to the comparator, and the other end of the automatic gain control AGC is connected to the voltage controlled amplifier VCA.

[0025] Furthermore, the controller also includes a storage unit and an interface unit;

[0026] A storage unit for storing programs, algorithms expressed in the form of programs, and data required for the operation of the controller;

[0027] Interface unit, used to communicate with the host computer or directly drive the controlled device.

[0028] Furthermore, the infrared remote control signal is a signal with a carrier wave, and the carrier wave frequency range is 30KHz-57KHz; the infrared gesture signal emitted by the infrared gesture transmitting unit is an infrared pulse signal without a carrier wave, and the pulse frequency range is 0.1KHz-10KHz.

[0029] Accordingly, a gesture recognition method with infrared remote control receiving function is also provided, comprising the steps of:

[0030] S1. The infrared transmitting unit transmits an infrared gesture signal to the detection object and / or the infrared remote controller transmits an infrared remote control signal;

[0031] S2. The infrared receiving unit receives the infrared gesture signal transmitted by the infrared transmitting unit and / or receives the infrared remote control signal transmitted by the infrared remote control, processes the received infrared gesture signal and / or infrared remote control signal, and outputs the processing result to the controller;

[0032] S3. The controller determines whether the received signal is an infrared gesture signal or an infrared remote control signal or an infrared gesture signal and an infrared remote control signal; if it is an infrared gesture signal, the controller processes the corresponding infrared gesture signal; if it is an infrared remote control signal, the controller processes the corresponding infrared remote control signal; if it is an infrared gesture signal and an infrared remote control signal, the controller processes the infrared remote control signal and shields the infrared gesture signal.

[0033] Compared with the prior art, the present invention reduces the use of devices and the number of optical windows on the panel through the reuse of infrared receiving devices, simplifies the installation scheme, reduces costs, and facilitates user use. At the same time, it solves the mutual interference problem that is prone to occur in the existing independent detection and processing of infrared gestures and infrared remote controls. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a principle block diagram of an infrared gesture sensor provided by the background technology;

[0035] Figure 2 It is a schematic diagram of an infrared remote control system provided by the background technology;

[0036] Figure 3 This is a structural diagram of a gesture recognition module with an infrared remote control receiving function provided in the first embodiment;

[0037] Figure 4 It is a schematic diagram of the position arrangement of the infrared transmitting unit and the infrared receiving unit provided in the first embodiment;

[0038] Figure 5 is a principle block diagram of an infrared receiving unit provided in Embodiment 1;

[0039] Figure 6 This is a flow chart of a gesture recognition method with infrared remote control receiving function provided in Embodiment 2;

[0040] Among them, 31. first infrared emitting unit; 311. first driving circuit; 312. first infrared emitting diode; 32. second infrared emitting unit; 321. second driving circuit; 322. second infrared emitting diode; 33. infrared receiving unit; 331. photosensitive diode; 332. signal processing circuit; 34. controller; 341. storage unit; 342. interface unit; 35. detection object; 36. infrared remote control; 37. host computer; 38. execution unit. DETAILED DESCRIPTION

[0041] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0042] The purpose of the present invention is to provide a gesture recognition device and a recognition method with an infrared remote control receiving function in view of the defects of the prior art.

[0043] Embodiment 1

[0044] This embodiment provides a gesture recognition device with an infrared remote control receiving function, comprising a controller, an infrared remote control, at least two infrared transmitting units and at least one infrared receiving unit; the at least two infrared transmitting units and the at least one infrared receiving unit are arranged in a preset arrangement, the infrared receiving unit is respectively connected to the infrared transmitting unit and the infrared remote control, and the controller is respectively connected to the infrared receiving unit and the infrared transmitting unit;

[0045] An infrared transmitting unit, used for transmitting infrared gesture signals to a detection object;

[0046] Infrared remote control, used to transmit infrared remote control signals;

[0047] an infrared receiving unit, used to receive the infrared gesture signal emitted by the infrared transmitting unit and / or the infrared remote control signal emitted by the infrared remote control reflected by the detection object, perform signal processing on the received infrared gesture signal and / or infrared remote control signal, and output the processed signal to the controller;

[0048] The controller is used to receive the signal output by the infrared receiving unit, and identify the infrared gesture signal and / or infrared remote control signal, output the identified infrared gesture signal and / or infrared remote control signal to the host computer, or output the control signal corresponding to the infrared gesture signal and / or infrared remote control signal to the drive execution unit.

[0049] The controller is also used to control the infrared emitting unit to emit infrared gesture signals in a time-sharing manner.

[0050] In this embodiment, at least two infrared emitting units and at least one infrared receiving unit are arranged in a preset arrangement, wherein the preset arrangement is:

[0051] When there are two infrared transmitting units and one infrared receiving unit, the infrared receiving unit is located in the middle of the two infrared transmitting units, and the two infrared transmitting units maintain a certain distance, generally more than 20 mm.

[0052] When there are three infrared emitting units and one infrared receiving unit, the three infrared emitting units serve as vertices to form an isosceles right triangle, and the infrared receiving unit is located in the middle of the hypotenuse of the isosceles right triangle.

[0053] In this embodiment, the positions of the infrared transmitting unit and the infrared receiving unit are arranged to ensure that the signal emitted by the infrared transmitting unit can be received by the infrared receiving unit.

[0054] The infrared remote control signal is a signal with a carrier wave, and the carrier wave frequency range is 30KHz-57KHz. The remote control signal encoding is NEC, RC5 and other encoding formats or custom encoding formats; the infrared gesture signal emitted by the infrared gesture transmitting unit is an infrared pulse signal without a carrier wave, and the pulse frequency range is 0.1KHz-10KHz.

[0055] This embodiment takes two infrared transmitting units and one infrared receiving unit as an example, and the infrared remote control signal adopts a 38KHz carrier and is encoded as NEC code. The infrared gesture signal emitted by the infrared gesture transmitting unit is an infrared pulse signal without a carrier, and the pulse frequency range is 0.3KHz.

[0056] like Figure 3 As shown, it includes a controller 34 , a first infrared transmitting unit 31 , a second infrared transmitting unit 32 , an infrared receiving unit 33 , and an infrared remote controller 36 .

[0057] The first infrared emitting unit 31 includes a first infrared emitting diode 312 and a first driving circuit 311, and the first infrared emitting diode 312 is connected to the first driving circuit 311; the second infrared emitting unit 32 includes a second infrared emitting diode 322 and a second driving circuit 321, and the second infrared emitting diode 322 is connected to the second driving circuit 321; wherein the first driving circuit 311 and the second driving circuit 321 are respectively used to provide current signals for the first infrared emitting diode 312 and the second infrared emitting diode 322; the first infrared emitting diode 312 and the second infrared emitting diode 322 are respectively used to emit infrared light, that is, to emit infrared gesture signals to the detection object 35.

[0058] like Figure 4 The figure shows a schematic diagram of the position arrangement of the first infrared emitting unit 31, the second infrared emitting unit 32 and the infrared receiving unit 33, wherein the first infrared emitting unit 31 and the second infrared emitting unit 32 are 40 mm apart, the infrared receiving unit 33 is located in the middle of the two, the distance between the infrared receiving unit 33 and the first infrared emitting unit 31 is 20 mm, and the distance between the infrared receiving unit 33 and the second infrared emitting unit 32 is 20 mm.

[0059] The infrared remote controller 36 is used to transmit infrared remote control signals.

[0060] The infrared receiving unit 33 includes a photosensitive diode 331 and a signal processing circuit 332, and the photosensitive diode 331 and the signal processing circuit 332 are connected; the photosensitive diode 331 is used to receive the infrared gesture signal emitted by the first infrared emitting diode 312 and the second infrared emitting diode 322 reflected by the detection object 35 and the infrared remote control signal emitted by the infrared remote control 36; the signal processing circuit 332 is used to process the received infrared gesture signal and infrared remote control signal into two outputs of infrared gesture and infrared remote control, and output them to the controller 34.

[0061] The signal processing circuit includes a transimpedance amplifier TIA, an infrared remote control signal processing unit, and an infrared gesture signal processing unit;

[0062] The signal processing circuit processes the infrared gesture signal and the infrared remote control signal by amplifying the infrared gesture signal and the infrared remote control signal in turn through a transimpedance amplifier TIA and then dividing the amplified ...

[0063] like Figure 5As shown, the infrared gesture signal processing unit includes a first bandpass filter BPF1 and an AD converter; one end of the transimpedance amplifier TIA is connected to one end of the first bandpass filter BPF1, and the other end of the first bandpass filter BPF1 is connected to the AD converter; the infrared remote control signal processing unit includes a voltage-controlled amplifier VCA, a second bandpass filter BPF2, and a comparator; one end of the transimpedance amplifier TIA is connected to one end of the voltage-controlled amplifier VCA, the other end of the voltage-controlled amplifier VCA is connected to one end of the second bandpass filter BPF2, and the other end of the second bandpass filter BPF2 is connected to the comparator; the infrared remote control signal processing unit also includes an automatic gain control AGC, one end of the automatic gain control AGC is connected to the comparator, and the other end of the automatic gain control AGC is connected to the voltage-controlled amplifier VCA.

[0064] The specific method for the infrared receiving unit 33 to process the signal is as follows: the photocurrent signal (the photocurrent signal, i.e., the infrared gesture signal and / or the infrared remote control signal) received by the photodiode 331 is transmitted to the signal processing circuit 332, and is divided into two paths after being amplified by the transimpedance amplifier TIA. One path flows through the first bandpass filter BPF1 and the AD converter in sequence to output the infrared gesture signal after conversion; the other path flows through the voltage-controlled amplifier VCA, the second bandpass filter BPF2, and the comparator in sequence to perform demodulation and shaping processing, and outputs the infrared remote control signal after processing. In this embodiment, the infrared remote control signal processing unit is provided with an automatic gain control AGC for adjusting the gain of the voltage-controlled amplifier VCA.

[0065] The center frequency of the first band-pass filter BPF1 is 0.3KHz, the frequency of the pulse infrared signal emitted by the infrared gesture transmitting unit, so that the infrared gesture signal can pass, but the infrared remote control signal cannot pass; the center frequency of the second band-pass filter BPF2 is 38K, the carrier frequency of the infrared remote control signal, so that the infrared remote control signal can pass, but the infrared gesture signal cannot pass; the center frequency and filter bandwidth of the first band-pass filter BPF1 and the second band-pass filter BPF2 are reasonably set, so that the infrared remote control signal can pass through the second band-pass filter BPF2, and the infrared gesture signal can pass through the first band-pass filter BPF1, thereby realizing the effective separation of the infrared remote control signal and the infrared gesture signal.

[0066] The controller 34 controls the first infrared emitting diode 312 and the second infrared emitting diode 322 to transmit infrared gesture signals in a time-sharing manner; the controller 34 also receives the output of the infrared receiving unit 33, and identifies and processes the infrared gesture signals and infrared remote control signals.

[0067] The controller 34 also includes a storage unit 341 and an interface unit 342;

[0068] The storage unit 341 is used to store programs, algorithms expressed in the form of programs, and data required for the operation of the controller;

[0069] The interface unit 342 is connected to the host computer and is used to communicate with the host computer or drive the controlled device.

[0070] In this embodiment, the controller 34 processes infrared remote control and infrared gestures as follows:

[0071] When the infrared receiving unit 33 receives only the infrared remote control signal or the infrared gesture signal, it outputs the infrared remote control signal or the infrared gesture signal accordingly, and the controller 34 processes the infrared remote control signal or the infrared gesture signal accordingly.

[0072] When the infrared receiving unit 33 receives both the infrared remote control signal and the infrared gesture signal, it accordingly outputs both the infrared remote control signal and the infrared gesture signal simultaneously, and the controller 34 processes the infrared remote control signal first and shields the infrared output signal;

[0073] In this embodiment, in order to reduce the mutual interference between the infrared remote control signal and the infrared gesture signal, when the controller 34 receives the infrared remote control signal and the infrared gesture signal at the same time, the controller 34 controls the first infrared transmitting unit 31 and the second infrared transmitting unit 32 to immediately stop transmitting the infrared signal, and the infrared gesture signal is no longer output, and the controller 34 only needs to process the infrared remote control input signal. Usually, a key press of the infrared remote control will transmit multiple groups of the same infrared remote control signals, and the controller 34 only needs to detect one to complete the reception and decoding of the infrared remote control signal.

[0074] In this embodiment, a host computer 37 and an execution unit 38 are also included.

[0075] After completing the signal recognition, the controller 34 can send the corresponding control signal to the host computer 37 through the interface unit 342 or directly drive the execution unit 38 to execute the action corresponding to the control signal according to the pre-set settings.

[0076] This embodiment reduces the use of devices and the number of optical windows on the panel through the reuse of infrared receiving devices, simplifies the installation scheme, reduces costs, and facilitates user use. At the same time, it solves the mutual interference problem that is prone to occur in the existing independent detection and processing of infrared gestures and infrared remote controls.

[0077] Embodiment 2

[0078] This embodiment provides a gesture recognition method with infrared remote control receiving function, such as Figure 6 As shown, the steps include:

[0079] S11. The infrared transmitting unit transmits an infrared gesture signal to the detection object and / or the infrared remote controller transmits an infrared remote control signal;

[0080] S12. The infrared receiving unit receives the infrared gesture signal transmitted by the infrared transmitting unit and / or receives the infrared remote control signal transmitted by the infrared remote control, processes the received infrared gesture signal and / or infrared remote control signal, and outputs the processing result to the controller;

[0081] S13. The controller determines whether the received signal is an infrared gesture signal or an infrared remote control signal or an infrared gesture signal and an infrared remote control signal; if it is an infrared gesture signal, the controller processes the corresponding infrared gesture signal; if it is an infrared remote control signal, the controller processes the corresponding infrared remote control signal; if it is an infrared gesture signal and an infrared remote control signal, the controller processes the infrared remote control signal and shields the infrared gesture signal.

[0082] It should be noted that the gesture recognition method with infrared remote control receiving function provided in this embodiment is similar to that in the first embodiment, and will not be described in detail here.

[0083] Compared with the prior art, the present invention reduces the use of devices and the number of optical windows on the panel through the reuse of infrared receiving devices, simplifies the installation scheme, reduces costs, and facilitates user use. At the same time, it solves the mutual interference problem that is prone to occur in the existing independent detection and processing of infrared gestures and infrared remote controls.

[0084] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A gesture recognition device with infrared remote control receiving function, characterized in that: The device comprises a controller, an infrared remote controller, at least two infrared transmitting units and at least one infrared receiving unit; the at least two infrared transmitting units and the at least one infrared receiving unit are arranged in a preset arrangement, the infrared receiving unit is connected to the infrared transmitting unit and the infrared remote controller respectively, and the controller is connected to the infrared receiving unit and the infrared transmitting unit respectively; The preset arrangements include: When there are two infrared transmitting units and one infrared receiving unit, the infrared receiving unit is located in the middle of the two infrared transmitting units; Or when there are three infrared transmitting units and one infrared receiving unit, the three infrared transmitting units serve as vertices to form an isosceles right triangle, and the infrared receiving unit is located in the middle of the hypotenuse of the isosceles right triangle; An infrared transmitting unit, used for transmitting infrared gesture signals to a detection object; Infrared remote control, used to transmit infrared remote control signals; an infrared receiving unit, used to receive the infrared gesture signal emitted by the infrared transmitting unit and / or the infrared remote control signal emitted by the infrared remote control reflected by the detection object, perform signal processing on the received infrared gesture signal and / or infrared remote control signal, and output the processed signal to the controller; The controller is used to receive the signal output by the infrared receiving unit, and identify the infrared gesture signal and / or infrared remote control signal, output the identified infrared gesture signal and / or infrared remote control signal to the host computer, or output the control signal corresponding to the infrared gesture signal and / or infrared remote control signal to the drive execution unit.

2. A gesture recognition device with infrared remote control receiving function according to claim 1, characterized in that: The controller is also used to control the infrared emitting unit to emit infrared gesture signals in a time-sharing manner.

3. The gesture recognition device with infrared remote control receiving function according to claim 1, characterized in that: The infrared emitting unit comprises an infrared emitting diode and a driving circuit; A driving circuit, used for providing a current signal to the infrared emitting diode; The infrared emitting diode is connected to the driving circuit and is used for emitting infrared light.

4. The gesture recognition device with infrared remote control receiving function according to claim 1, characterized in that: The infrared receiving unit includes a photosensitive diode and a signal processing circuit; A photosensitive diode is used to receive infrared gesture signals emitted by the infrared transmitting unit and infrared remote control signals emitted by the infrared remote controller reflected by the detection object; The signal processing circuit is connected to the photosensitive diode and is used for processing the infrared gesture signal and the infrared remote control signal received by the photosensitive diode.

5. The gesture recognition device with infrared remote control receiving function according to claim 4, characterized in that: The signal processing circuit includes a transimpedance amplifier TIA, an infrared remote control signal processing unit, and an infrared gesture signal processing unit; The signal processing circuit processes the infrared gesture signal and the infrared remote control signal by amplifying the infrared gesture signal and the infrared remote control signal in turn through a transimpedance amplifier TIA and then dividing the amplified ...

6. The gesture recognition device with infrared remote control receiving function according to claim 5, characterized in that: The infrared gesture signal processing unit includes a first bandpass filter BPF1 and an AD converter; one end of the transimpedance amplifier TIA is connected to one end of the first bandpass filter BPF1, and the other end of the first bandpass filter BPF1 is connected to the AD converter; The infrared remote control signal processing unit includes a voltage-controlled amplifier VCA, a second band-pass filter BPF2, and a comparator; one end of the transimpedance amplifier TIA is connected to one end of the voltage-controlled amplifier VCA, the other end of the voltage-controlled amplifier VCA is connected to one end of the second band-pass filter BPF2, and the other end of the second band-pass filter BPF2 is connected to the comparator.

7. The gesture recognition device with infrared remote control receiving function according to claim 6, characterized in that: The infrared remote control signal processing unit further comprises an automatic gain control AGC, one end of the automatic gain control AGC is connected to the comparator, and the other end of the automatic gain control AGC is connected to the voltage controlled amplifier VCA.

8. The gesture recognition device with infrared remote control receiving function according to claim 2, characterized in that: The controller also includes a storage unit and an interface unit; A storage unit for storing programs, algorithms expressed in the form of programs, and data required for the operation of the controller; Interface unit, used to communicate with the host computer or directly drive the controlled device.

9. The gesture recognition device with infrared remote control receiving function according to claim 1, characterized in that: The infrared remote control signal is a signal with a carrier wave, and the carrier wave frequency range is 30KHz-57KHz; the infrared gesture signal emitted by the infrared gesture transmitting unit is an infrared pulse signal without a carrier wave, and the pulse frequency range is 0.1KHz-10KHz.

10. A recognition method for a gesture recognition device with an infrared remote control receiving function based on any one of claims 1 to 9, characterized in that: Includes steps: S1. The infrared transmitting unit transmits an infrared gesture signal to the detection object and / or the infrared remote controller transmits an infrared remote control signal; S2. The infrared receiving unit receives the infrared gesture signal transmitted by the infrared transmitting unit and / or receives the infrared remote control signal transmitted by the infrared remote control, processes the received infrared gesture signal and / or infrared remote control signal, and outputs the processing result to the controller; S3. The controller determines whether the received signal is an infrared gesture signal or an infrared remote control signal or an infrared gesture signal and an infrared remote control signal; if it is an infrared gesture signal, the controller processes the corresponding infrared gesture signal; if it is an infrared remote control signal, the controller processes the corresponding infrared remote control signal; if it is an infrared gesture signal and an infrared remote control signal, the controller processes the infrared remote control signal and shields the infrared gesture signal.

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