CN212570025U - Infrared remote control code learning device and learning system - Google Patents
Infrared remote control code learning device and learning system Download PDFInfo
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- CN212570025U CN212570025U CN202020898539.4U CN202020898539U CN212570025U CN 212570025 U CN212570025 U CN 212570025U CN 202020898539 U CN202020898539 U CN 202020898539U CN 212570025 U CN212570025 U CN 212570025U
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Abstract
The application discloses infrared remote control code learning device and learning system includes: the infrared sensing module is used for sensing infrared data sent by the infrared remote controller so as to generate an infrared electric signal; the signal amplification module is used for acquiring the infrared electric signal from the infrared induction module to generate an amplified electric signal; the comparator module is used for acquiring the amplified electric signal from the signal amplification module, shaping the amplified electric signal and outputting the shaped amplified electric signal; the signal acquisition module is used for acquiring and storing the shaped electric signal from the comparator module; the wireless communication module is used for wirelessly transmitting the shaping electric signals in the signal acquisition module and uploading the shaping electric signals to the cloud infrared code library. The infrared remote control code learning device can gradually perfect the infrared code library in the cloud, is convenient for other users to call, and finally realizes universal in the true sense.
Description
Technical Field
The application relates to the technical field of infrared remote control, in particular to an infrared remote control code learning device and an infrared remote control code learning system.
Background
A plurality of existing household appliances are controlled by a universal remote controller, however, part of the universal remote controllers can only learn infrared codes with specific carrier frequencies, and after learning is completed, only the universal remote controller can be used; and other universal remote controllers need to learn by themselves to acquire the infrared codes. Therefore, the universal remote controller cannot realize universal in the true sense.
SUMMERY OF THE UTILITY MODEL
The application provides an infrared remote control code learning device and a learning system, which aim to solve the problem that a universal remote controller cannot realize universal in the true sense.
In order to solve the above technical problem, the present application provides an infrared remote control code learning device, including: the infrared sensing module is used for sensing infrared data sent by the infrared remote controller so as to generate an infrared electric signal; the signal amplification module is connected with the infrared induction module and used for acquiring the infrared electric signal from the infrared induction module, filtering and amplifying the infrared electric signal to generate an amplified electric signal; the comparator module is connected with the signal amplification module and used for acquiring the amplified electric signal from the signal amplification module and outputting a shaped electric signal comprising a high-level signal and a low-level signal after shaping the amplified electric signal; the signal acquisition module is connected with the comparator module and used for acquiring and storing the shaped electric signal from the comparator module; and the wireless communication module is connected with the signal acquisition module and is used for carrying out wireless transmission on the shaping electric signal in the signal acquisition module and uploading the shaping electric signal to the cloud infrared code library.
The signal amplification module comprises an operational amplifier chip, a first high-pass filter, a second high-pass filter and a first power supply, wherein one end of the first high-pass filter is connected to the infrared inductor module, and the other end of the first high-pass filter is connected to the input end of the operational amplifier chip and used for allowing infrared electric signals to pass through; the two ends of the second high-pass filter are respectively connected to the input end and the output end of the operational amplifier chip and used for allowing the infrared electric signals to pass through, and the operational amplifier chip is connected with the first power supply.
The first high-pass filter comprises a first capacitor and a first resistor, and two ends of the first resistor are respectively connected with the first capacitor and the operational amplifier chip; the second high-pass filter comprises a second capacitor and a second resistor, the second capacitor and the second resistor are connected in parallel, and two ends of the second capacitor and the second resistor are respectively connected to two ends of the operational amplifier chip.
Wherein the cut-off frequency of the first high-pass filter is 20 kHz; the cut-off frequency of the second high-pass filter is 80kHz, and the operational amplification factor of the operational amplifier chip is the ratio of the second resistor to the first resistor.
The signal amplification module further comprises a third capacitor, a fourth capacitor, a third resistor and a fourth resistor, wherein the third capacitor and the fourth capacitor are connected in parallel and are respectively connected between the first power supply and the ground and used for filtering the first power supply; the third resistor and the fourth resistor are connected in parallel to the operational amplifier chip and used for providing bias voltage.
The comparator module comprises a comparator chip, a fifth resistor, a sixth resistor, a seventh resistor, a second power supply and a third power supply, the input end of the comparator chip is connected with the signal amplification module through the fifth resistor, the comparator chip is connected with the second power supply, the sixth resistor and the seventh resistor are respectively connected between the third power supply and the ground and are both connected onto the comparator chip and used for controlling the voltage of the negative input end of the comparator chip, and the output end of the comparator chip is connected with the signal acquisition module.
The comparator module further comprises a fifth capacitor and a sixth capacitor, wherein the fifth capacitor and the sixth capacitor are connected in parallel and are respectively connected with the comparator chip and the second power supply, and the comparator chip is used for supplying power stably.
The comparator module further comprises an eighth resistor, and the output end of the comparator chip is connected with the signal acquisition module through the eighth resistor.
The infrared sensing module comprises an infrared photosensitive diode, a fourth power supply and a ninth resistor, the ninth resistor is connected with the fourth power supply, and the infrared photosensitive diode is connected with the ninth resistor and the signal amplification module respectively.
In order to solve the technical problem, the application provides a learning system, which comprises an infrared remote control code learning device and a memory in communication connection with the infrared remote control code learning device, wherein the memory is used for realizing the infrared remote control code learning device.
The beneficial effect of this application is: be different from prior art's condition, this application infrared remote control code learning includes infrared induction module, signal amplification module, comparator module, signal acquisition module and wireless communication module. The infrared sensing module is used for sensing infrared data sent by the infrared remote controller so as to generate an infrared electric signal. The signal amplification module is used for acquiring the infrared electric signal from the infrared induction module, filtering and amplifying the infrared electric signal to generate an amplified electric signal. The comparator module is used for acquiring the amplified electric signal from the signal amplification module, shaping the amplified electric signal and outputting a shaped electric signal comprising a high-level signal and a low-level signal. The signal acquisition module is used for acquiring the shaped electric signal from the comparator module and storing the shaped electric signal. The wireless communication module is used for carrying out wireless transmission with the plastic electric signal in the signal acquisition module, and the shaping electric signal is confirmed and is added in the infrared code bank to the high in the clouds, and then gradually perfects the infrared code bank in the high in the clouds, makes things convenient for other users to call, finally realizes omnipotently.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a block diagram showing a first embodiment of an infrared remote control code learning apparatus according to the present application;
FIG. 2 is a partial circuit diagram of a second embodiment of an infrared remote control code learning apparatus according to the present application;
fig. 3 is a block diagram of an embodiment of the learning system of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present application, the following describes in detail an infrared remote control code learning device and a learning system provided by the present invention with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 and 2, fig. 1 is a block diagram of a first embodiment of an infrared remote control code learning device according to the present application; fig. 2 is a partial circuit diagram of an infrared remote control code learning device according to a second embodiment of the present application.
The infrared remote control code learning device comprises an infrared sensing module 1, a signal amplification module 2, a comparator module 3, a signal acquisition module 4, a wireless communication module 5 and a cloud end 6. The infrared sensing module 1 is used for sensing infrared data sent by the infrared remote controller to generate an infrared electric signal. The signal amplification module 2 is connected with the infrared sensing module 1, and is used for acquiring the infrared electric signal from the infrared sensing module 1, filtering and amplifying the infrared electric signal, and generating an amplified electric signal. The comparator module 3 is connected to the signal amplification module 2, and is configured to obtain the amplified electrical signal from the signal amplification module 2, shape the amplified electrical signal, and output a shaped electrical signal including a high level signal and a low level signal. The signal acquisition module 4 is connected to the comparator module 3, and is configured to acquire the shaped electrical signal from the comparator module 3 and store the shaped electrical signal. The wireless communication module 5 is connected with the signal acquisition module 4 and is used for wirelessly transmitting the shaping electric signal in the signal acquisition module 4. The cloud end 6 is in wireless connection with the wireless communication module 5 and used for acquiring the shaping electric signals from the wireless communication module 5 and uploading the shaping electric signals to the cloud end 6. The cloud end 6 confirms the shaping electric signal and adds the shaping electric signal into the infrared code library, so that the infrared code library in the cloud end 6 is gradually perfected, other users can conveniently call the shaping electric signal, and finally universal use in the true sense is achieved.
Specifically, wireless communication module 5 is the WIFI module, and the WIFI module communicates through the UART with signal acquisition module 4. After the corresponding infrared codes are successfully learned and the tests are actually issued to be available, the learned infrared codes can be uploaded to the cloud end 6 through the WIFI module, the infrared codes are added to the corresponding infrared code library after being confirmed by the cloud end 6, the infrared code library of the cloud end 6 is continuously perfected, and more infrared code selections of infrared equipment are provided for a user.
Therefore, the infrared remote control code learning device gradually perfects the infrared code library in the cloud, facilitates calling of other users, and finally achieves universal in the true sense.
In an embodiment, the signal amplifying module 2 includes an operational amplifier chip 21, a first high-pass filter 22, a second high-pass filter 23, and a first power supply 24, and the operational amplifier chip 21 is configured to filter and amplify the infrared electric signal to generate an amplified electric signal. The first high-pass filter 22 and the second high-pass filter 23 are used to allow the infrared electric signal to pass through, respectively. The operational amplifier chip 21 is connected to a first power supply 24, and the first power supply 24 is used for supplying voltage to the operational amplifier chip 21. One end of the first high-pass filter 22 is connected to the infrared sensing module 1, and the other end of the first high-pass filter 22 is connected to the negative input end of the operational amplifier chip 21. One end of the second high-pass filter 23 is connected to the other end of the first high-pass filter 22, and both ends are connected to the negative input end of the operational amplifier chip 21. The other end of the second high-pass filter 23 is connected to the output end of the operational amplifier chip 21.
Specifically, the first high-pass filter 22 includes a first capacitor 221 and a first resistor 222, that is, the first capacitor 221 and the first resistor 222 constitute the first high-pass filter 22, wherein two ends of the first resistor 222 are respectively connected to one end of the first capacitor 221 and the negative input end of the operational amplifier chip 21, and the other end of the first capacitor 221 is respectively connected to the infrared sensing module 1. Let the first capacitor 221 be C1, the first resistor 222 be R1, and the cut-off frequency f1 of the first high-pass filter 22, i.e., f1 ═ R1 × C1/2 pi.
The second high-pass filter 23 comprises a second capacitor 231 and a second resistor 232, i.e. the second capacitor 231 and the second resistor 232 form the second high-pass filter 23. The second capacitor 231 and the second resistor 232 are connected in parallel, one end of the second capacitor is connected to one end of the first resistor 222 after the second capacitor is connected in parallel, and the other end of the second capacitor is connected to the output end of the operational amplifier chip 21 after the second capacitor is connected in parallel. Let the second capacitor 231 be C2, the second resistor 232 be R2, and the cut-off frequency f2 of the second high-pass filter 23, i.e., f2 ═ R2 × C2/2 pi.
Further, since the existing infrared code carrier frequency is between 30-60kHz, in order to acquire the infrared code infrared electric signal, the cutoff frequency of the first high-pass filter 22 is set to 20kHz in the present embodiment; the cut-off frequency of the second high-pass filter 23 is set to 80 kHz. The operational amplifier chip 21 is used for amplifying the infrared electric signal, and the amplification factor of the operational amplifier is the ratio between the second resistor 232 and the first resistor 222, i.e. R2/R1.
Furthermore, the signal amplifying module 2 further includes a third capacitor 25, a fourth capacitor 26, a third resistor 27 and a fourth resistor 28, wherein the third capacitor 25 is assumed to be C3, the fourth capacitor 26 is assumed to be C4, the third resistor 27 is assumed to be R3, and the fourth resistor 28 is assumed to be R4. The third capacitor 25 and the fourth capacitor 26 are connected in parallel and are respectively connected between the first power supply 24 and the ground, and are used for filtering the first power supply 24 of the operational amplifier chip 21, so as to ensure stable power supply of the operational amplifier chip 21. The third resistor 27 and the fourth resistor 28 are both connected to the operational amplifier chip 21 for providing a bias voltage for the operational amplifier chip 21. The operational amplifier chip 21 is directly grounded and connected to one end of the third resistor 27, the other end of the third resistor 27 is connected to one end of the fourth resistor 28, and the other end of the fourth resistor 28 is connected to one end of the third capacitor 25.
In one embodiment, the comparator module 3 includes a comparator chip 31, a fifth resistor 32 and a sixth resistor 33, a seventh resistor 34, a second power supply 35 and a third power supply 36, wherein the fifth resistor 32 is assumed to be R5, the sixth resistor 33 is assumed to be R6, and the seventh resistor 34 is assumed to be R7. The input end of the comparator chip 31 is connected to the signal amplification module 2 through a fifth resistor 32, and is configured to obtain an amplified electrical signal. The comparator chip 31 can shape the amplified electric signal and output a high-level signal and a low-level signal. The comparator chip 31 is connected to a second power supply 35, and the second power supply 35 is used to supply a voltage to the comparator chip 31. The sixth resistor 33 and the seventh resistor 34 are respectively connected between the third power source 36 and the ground and are both connected to the comparator chip 31, and are used for controlling the voltage at the negative input terminal of the comparator chip 31. One end of the sixth resistor 33 is connected to the third power supply 36, the other end is connected to the comparator chip 31 and one end of the seventh resistor 34, and the other end of the seventh resistor 34 is connected to the second power supply 35. The voltage provided by the third power supply 36 can be used as the reference voltage of the comparator chip 31 at the negative input terminal of the comparator chip 31. When the signal voltage output by the operational amplifier chip 21 is higher than the signal voltage at the negative input end of the comparator chip 31, the comparator chip 31 outputs a high level; when the signal voltage output by the operational amplifier chip 21 is lower than the voltage of the negative input terminal of the comparator chip 31, the comparator chip 31 outputs a low level. The output end of the comparator chip 31 is connected to the signal acquisition module 4, so that the signal acquisition module 4 can obtain the shaped electrical signal from the output end of the comparator chip 31 and store the shaped electrical signal.
In particular, the comparator module 3 further comprises a fifth capacitor 37 and a sixth capacitor 38, assuming that the fifth capacitor 37 is C5 and the sixth capacitor 38 is C6. The fifth capacitor 37 and the sixth capacitor 38 are connected in parallel and are respectively connected to the comparator chip 31 and the second power supply 35, and filter the second power supply 35 of the comparator chip 31, so as to ensure stable power supply of the comparator chip 31.
Further, the comparator module 3 further includes an eighth resistor 39, and the output terminal of the comparator chip 31 is connected to the signal acquisition module 4 through the eighth resistor 39. The signal acquisition module 4 selects an STM32 single chip microcomputer, an external 16MHz crystal oscillator is used as a main clock, the hardware PWM of the single chip microcomputer is connected with the signal output end of the comparator module 3, and the signal output end receives a stable high-level signal and a stable low-level signal output by the comparator chip 31.
In an embodiment, the infrared sensing module 1 includes an infrared photodiode 11, a fourth power supply 12, and a ninth resistor 13, where the ninth resistor 13 is connected to the fourth power supply 12, the fourth power supply 12 is configured to provide a voltage to the infrared photodiode 11, and the ninth resistor 13 is configured to perform a voltage division function. Suppose the infrared photodiode 11 is D1 and the ninth resistor 13 is R9. The infrared photosensitive diode 11 is respectively connected with the ninth resistor 13 and the signal amplification module 2, the infrared photosensitive diode 11 is reversely connected in the circuit of the infrared sensing module 1, and the negative electrode of the infrared photosensitive diode 11 is connected with the ninth resistor 13 and the first capacitor 221 of the signal amplification module 2. When no infrared electric signal irradiates, the infrared photosensitive diode 11 reverses the dark current to be in nA level; when an infrared electric signal irradiates the infrared photodiode 11, the infrared photodiode 11 generates a reverse photocurrent of 10uA, and at this time, a voltage fluctuation of mV level is formed at the negative electrode of the infrared photodiode 11. The infrared photodiode 11 is connected to the signal amplification module 2 and configured to transmit the generated infrared electrical signal to the signal amplification module 2, so that the signal amplification module 2 filters and amplifies the infrared electrical signal.
The infrared photodiode 11 is a photoelectric conversion device, and is only sensitive to infrared light, and after a reverse voltage is applied, a reverse current in the infrared photodiode 11 changes with the intensity of the infrared light.
The infrared remote control code learning device comprises an infrared induction module, a signal amplification module, a comparator module, a signal acquisition module and a wireless communication module. The infrared sensing module is used for sensing infrared data sent by the infrared remote controller so as to generate an infrared electric signal. The signal amplification module is used for acquiring the infrared electric signal from the infrared induction module, filtering and amplifying the infrared electric signal to generate an amplified electric signal. The comparator module is used for acquiring the amplified electric signal from the signal amplification module, shaping the amplified electric signal and outputting a shaped electric signal comprising a high-level signal and a low-level signal. The signal acquisition module is used for acquiring the shaped electric signal from the comparator module and storing the shaped electric signal. The wireless communication module is used for wirelessly transmitting the shaped electric signal in the signal acquisition module 4. The cloud is used for acquiring the shaping electric signals from the wireless communication module and uploading the shaping electric signals to the cloud. The shaping electric signals are confirmed by the cloud and added into the infrared code library, so that the infrared code library in the cloud is gradually perfected, other users can conveniently call the infrared code library, and finally universal use in the true sense is realized.
Referring to fig. 3, fig. 3 is a block diagram of an embodiment of the learning system of the present application.
The learning system 100 of the present embodiment includes an infrared remote control code learning device 101 and a memory 102 communicatively connected to the infrared remote control code learning device 101, wherein the memory 102 is used to implement the infrared remote control code learning device 101. The memory 102 is a cloud memory.
It should be noted that the learning system 100 described in this embodiment is implemented by the infrared remote control code learning apparatus 101 described in the above embodiment, and details thereof are not repeated herein.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (10)
1. An infrared remote control code learning device, the device comprising:
the infrared sensing module is used for sensing infrared data sent by the infrared remote controller so as to generate an infrared electric signal;
the signal amplification module is connected with the infrared induction module and used for acquiring the infrared electric signal from the infrared induction module, filtering and amplifying the infrared electric signal to generate an amplified electric signal;
the comparator module is connected with the signal amplification module and is used for acquiring the amplified electric signal from the signal amplification module and outputting a shaped electric signal comprising a high-level signal and a low-level signal after shaping the amplified electric signal;
the signal acquisition module is connected with the comparator module and used for acquiring the shaped electric signal from the comparator module and storing the shaped electric signal;
and the wireless communication module is connected with the signal acquisition module and used for wirelessly transmitting the shaping electric signals in the signal acquisition module and uploading the shaping electric signals to a cloud infrared code library.
2. The infrared remote control code learning device as claimed in claim 1, wherein the signal amplification module comprises an operational amplifier chip, a first high pass filter, a second high pass filter and a first power supply, one end of the first high pass filter is connected to the infrared sensing module, and the other end of the first high pass filter is connected to the input end of the operational amplifier chip for allowing the infrared electric signal to pass through; and two ends of the second high-pass filter are respectively connected to the input end and the output end of the operational amplifier chip and used for allowing the infrared electric signals to pass through, and the operational amplifier chip is connected with the first power supply.
3. The infrared remote control code learning device as claimed in claim 2, wherein the first high-pass filter comprises a first capacitor and a first resistor, and two ends of the first resistor are respectively connected to the first capacitor and the operational amplifier chip; the second high-pass filter comprises a second capacitor and a second resistor, the second capacitor and the second resistor are connected in parallel, and two ends of the second capacitor and two ends of the second resistor are respectively connected to two ends of the operational amplifier chip.
4. The infrared remote control code learning device as claimed in claim 3, wherein the cutoff frequency of the first high-pass filter is 20 kHz; the cut-off frequency of the second high-pass filter is 80kHz, and the operational amplification factor of the operational amplifier chip is the ratio of the second resistor to the first resistor.
5. The infrared remote control code learning device as claimed in claim 2, wherein the signal amplification module further comprises a third capacitor, a fourth capacitor, a third resistor and a fourth resistor, the third capacitor and the fourth capacitor are connected in parallel and respectively connected between the first power supply and the ground for filtering the first power supply; the third resistor and the fourth resistor are connected in parallel to the operational amplifier chip and used for providing bias voltage.
6. The infrared remote control code learning device as claimed in claim 1, wherein the comparator module comprises a comparator chip, a fifth resistor, a sixth resistor, a seventh resistor, a second power supply and a third power supply, an input terminal of the comparator chip is connected to the signal amplification module through the fifth resistor, the comparator chip is connected to the second power supply, the sixth resistor and the seventh resistor are respectively connected between the third power supply and ground and both connected to the comparator chip for controlling a negative input terminal voltage of the comparator chip, and an output terminal of the comparator chip is connected to the signal acquisition module.
7. The infrared remote control code learning device as claimed in claim 6, wherein the comparator module further comprises a fifth capacitor and a sixth capacitor, the fifth capacitor and the sixth capacitor are connected in parallel and respectively connected to the comparator chip and the second power supply for stabilizing power supply of the comparator chip.
8. The infrared remote control code learning device as claimed in claim 6, wherein the comparator module further comprises an eighth resistor, and the output terminal of the comparator chip is connected to the signal acquisition module through the eighth resistor.
9. The infrared remote control code learning device as claimed in any one of claims 1 to 8, wherein the infrared sensing module comprises an infrared photodiode, a fourth power supply and a ninth resistor, the ninth resistor is connected to the fourth power supply, and the infrared photodiode is respectively connected to the ninth resistor and the signal amplification module.
10. A learning system comprising an infrared remote control code learning device and a memory communicatively connected to the infrared remote control code learning device, the memory being configured to implement the infrared remote control code learning device of any one of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020898539.4U CN212570025U (en) | 2020-05-25 | 2020-05-25 | Infrared remote control code learning device and learning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020898539.4U CN212570025U (en) | 2020-05-25 | 2020-05-25 | Infrared remote control code learning device and learning system |
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| CN212570025U true CN212570025U (en) | 2021-02-19 |
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