CN215341395U - Infrared universal remote control circuit based on Bluetooth BLE communication - Google Patents

Abstract

The utility model relates to the technical field of remote control, in particular to an infrared universal remote control circuit based on Bluetooth BLE communication, which comprises signal ends, wherein the signal ends respectively comprise a TL _ IRcontrol end, a TL _ IRout end and a TL _ IRin end; an infrared emission circuit; the infrared emission circuit includes: the switching circuit comprises a plurality of switching tubes and a switching circuit consisting of a plurality of resistors, and the corresponding input end and output end of the switching circuit are respectively connected with the TL _ IRcontrol end, the TL _ IRout end and the TL _ IRin end correspondingly; an infrared transmission receiving circuit, the infrared transmission receiving circuit comprising: and one end of the infrared emission tube D5 is connected with the TL _ IRout end through one input end of the switch circuit.

Description

Infrared universal remote control circuit based on Bluetooth BLE communication

Technical Field

The utility model relates to the technical field of remote control, in particular to an infrared universal remote control circuit based on Bluetooth BLE communication.

Background

Infrared remote control is a wireless and non-contact control technology, and has the obvious advantages of strong anti-interference capability, reliable information transmission, low power consumption, low cost, easy realization and the like, so that the infrared remote control is generally adopted by household appliances. The household appliances are provided with corresponding infrared remote controllers such as air conditioners, televisions, intelligent fans and the like, when the types of the infrared household appliances are various, the number of the remote controllers is large, and the situations of remote control damage and loss sometimes occur, so that the remote controllers need to be bought again or the mobile phones used by users have an infrared function, and the infrared remote control is directly realized through the self-contained application of the mobile phones.

However, mobile phones of various brands on the market at present have partial models without infrared remote control function, and apple mobile phones with large number of users only support infrared distance sensing and do not support infrared remote control function, so that the mobile phones without infrared function have requirements. If the common household appliances such as an air conditioner, a television, a fan, a sound device and the like need to be controlled through the mobile phone, the common household appliances need to be additionally connected with a small plate with an infrared function for realizing, and a data channel between the mobile phone and the small plate is realized through Bluetooth BLE.

Disclosure of Invention

The utility model aims to provide an infrared universal remote control circuit based on Bluetooth BLE communication, which aims to solve the problems that when infrared household appliances are various, a plurality of remote controllers are provided, and remote control is broken and lost sometimes.

In order to achieve the above purpose, the present invention is widely applied to remote control technical solutions, and particularly provides the following technical solutions: an infrared universal remote control circuit based on Bluetooth BLE communication comprises a Bluetooth module, a Bluetooth module and a Bluetooth module, wherein the Bluetooth module is connected with the Bluetooth module;

the signal end comprises a TL _ IRcontrol end, a TL _ IRout end and a TL _ IRin end respectively;

an infrared emission circuit; the infrared emission circuit includes:

the switching circuit comprises a plurality of switching tubes and a switching circuit consisting of a plurality of resistors, and the corresponding input end and output end of the switching circuit are respectively connected with the TL _ IRcontrol end, the TL _ IRout end and the TL _ IRin end correspondingly

An infrared transmission receiving circuit, the infrared transmission receiving circuit comprising:

one end of the infrared emission tube D5 is connected with the TL _ IRout end through one input end of the switch circuit;

and the other end of the infrared emission tube D5 is connected with the TL _ IRin end through one output end of the filter circuit switching circuit.

Preferably, the switch circuit comprises a circuit consisting of a resistor R9, a transistor Q2, a resistor R15, a resistor R14, a resistor R13, a resistor R11, a transistor Q3 and a transistor Q4.

Preferably, the base of the transistor Q2 is connected to the TL _ IRcontrol terminal through a resistor R9, the base of the transistor Q2 is connected to one end of the ir emitter D5, the collector of the transistor Q2 is connected to the base of the transistor Q3 through a resistor R15, and the collector of the transistor Q3 is connected to one end of the filter circuit.

Preferably, the emitter of the transistor Q3 is connected to the TL _ IRcontrol terminal through the resistor R11 and the base of the transistor Q4, respectively; the collector of the transistor Q4 is connected to the TL _ IRin terminal.

Preferably, one end of the resistor R14 is connected to the transistor Q3, and the other end of the resistor R14 is connected to the TL _ IRcontrol terminal through the resistor R13.

Preferably, the filter circuit comprises a circuit consisting of a resistor R7, a capacitor C12, a capacitor C26 and a resistor R10;

one end of the resistor R7 is connected with a collector of the triode Q2 through an infrared emission tube D5, the other end of the resistor R7 is connected with a collector of the triode Q3 and one end of the resistor R10 through one end of a capacitor C12 and one end of a capacitor C26 respectively, and the other end of the resistor R10 is connected with a TL _ IRin end; the other end of the C12 and the other end of the capacitor C26 are both grounded.

Compared with the prior art, the utility model has the beneficial effects that:

when the TL _ IRcontrol is at a high level, when the TL _ IRout generates a 38K PWM signal, the TL _ IRout is at a high level, and when a collector of a triode Q2 is extremely low, an infrared emission tube D5 is conducted and emits a 38K PWM signal; when the TL _ IRout terminal is at low level and the collector of Q2 is at high level, the infrared emission tube D5 is closed, so that the corresponding 38K infrared signal is not emitted; the circuit is simple in design structure and low in cost, and the beneficial effect that the infrared household appliance is controlled by the mobile phone without the infrared function can be achieved.

Drawings

FIG. 1 is a schematic diagram of an infrared universal remote control circuit of the present invention;

fig. 2 is a schematic diagram of the connection between the mobile phone and the household appliances such as the TLSR8232 bluetooth chip, the air conditioner and the television.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention:

an infrared universal remote control circuit based on Bluetooth BLE communication comprises a Bluetooth module, a Bluetooth module and a Bluetooth module, wherein the Bluetooth module is connected with the Bluetooth module;

the signal end comprises a TL _ IRcontrol end, a TL _ IRout end and a TL _ IRin end respectively;

an infrared emission circuit; the infrared emission circuit includes:

the switching circuit comprises a plurality of switching tubes and a switching circuit consisting of a plurality of resistors, and the corresponding input end and output end of the switching circuit are respectively connected with the TL _ IRcontrol end, the TL _ IRout end and the TL _ IRin end correspondingly

An infrared transmission receiving circuit, the infrared transmission receiving circuit comprising:

one end of the infrared emission tube D5 is connected with the TL _ IRout end through one input end of the switch circuit;

and the other end of the infrared emission tube D5 is connected with the TL _ IRin end through one output end of the filter circuit switching circuit.

The switch circuit comprises a circuit consisting of a resistor R9, a triode Q2, a resistor R15, a resistor R14, a resistor R13, a resistor R11, a triode Q3 and a triode Q4;

the base electrode of the triode Q2 is connected with the TL _ IRcontrol end through a resistor R9, the base electrode of the triode Q2 is connected with one end of an infrared emission tube D5, the collector electrode of the triode Q2 is connected with the base electrode of the triode Q3 through a resistor R15, and the collector electrode of the triode Q3 is connected with one end of a filter circuit.

The emitter of the triode Q3 is connected with the TL _ IRcontrol end through the resistor R11 and the base of the triode Q4 respectively; the collector of the transistor Q4 is connected to the TL _ IRin terminal.

One end of the resistor R14 is connected with the transistor Q3, and the other end of the resistor R14 is connected with the TL _ IRcontrol end through a resistor R13.

The filter circuit comprises a circuit consisting of a resistor R7, a capacitor C12, a capacitor C26 and a resistor R10;

one end of the resistor R7 is connected with a collector of the triode Q2 through an infrared emission tube D5, the other end of the resistor R7 is connected with a collector of the triode Q3 and one end of the resistor R10 through one end of a capacitor C12 and one end of a capacitor C26 respectively, and the other end of the resistor R10 is connected with a TL _ IRin end; the other end of the C12 and the other end of the capacitor C26 are both grounded.

Example (b):

as shown in fig. 1 and 2:

according to the tall and erect interface that charges of ann and apple, the partial interface of circuit board power supply makes three kinds, is Micro USB interface, USBType C interface, Lightning interface respectively, and 5V LDO changes 3.3 and lies prostrate for the power supply of bluetooth chip TLSR 8232.

When the TL _ IRcontrol end of the control pin is at a high level, and is in a transmitting mode at this time, the receiving learning circuit is turned off, when the TL _ IRout end generates a 38K PWM signal, the TL _ IRout end is at a high level, the collector of the triode Q2 is at a low level, the infrared transmitting tube D5 is turned on, the TL _ IRout end is at a low level, the collector of the triode Q2 is at a high level, and the infrared transmitting tube D5 is turned off, so that a corresponding 38K infrared signal is not transmitted;

when the TL _ IRcontrol end of the control pin is at a low level, the control pin is in a learning mode, the infrared emission tube D5 is used as a receiving tube, when a 38K infrared signal is received, the infrared emission tube D5 is conducted, the base electrode of the triode Q3 is at a high level, the base electrode of the triode Q4 is at a low level, the collector TL _ IRin is at a high level, the infrared emission tube D5 is not conducted, the base electrode of the triode Q3 is at a low level, the base electrode of the triode Q4 is at a high level, the TL _ IRin is at a low level, and the signal is input into the Bluetooth chip TLSR8232 to be used for pulse width detection.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides an infrared omnipotent remote control circuit based on bluetooth BLE communication which characterized in that: the method comprises the following steps:

the signal end comprises a TL _ IRcontrol end, a TL _ IRout end and a TL _ IRin end respectively;

an infrared emission circuit; the infrared emission circuit includes:

the switching circuit comprises a plurality of switching tubes and a switching circuit consisting of a plurality of resistors, and the corresponding input end and output end of the switching circuit are respectively connected with the TL _ IRcontrol end, the TL _ IRout end and the TL _ IRin end correspondingly;

an infrared transmission receiving circuit, the infrared transmission receiving circuit comprising:

one end of the infrared emission tube D5 is connected with the TL _ IRout end through one input end of the switch circuit;

and the other end of the infrared emission tube D5 is connected with the TL _ IRin end through one output end of the filter circuit switching circuit.

2. The infrared universal remote control circuit based on bluetooth BLE communication according to claim 1, wherein: the switch circuit comprises a circuit consisting of a resistor R9, a triode Q2, a resistor R15, a resistor R14, a resistor R13, a resistor R11, a triode Q3 and a triode Q4.

3. The infrared universal remote control circuit based on bluetooth BLE communication according to claim 2, wherein: the base electrode of the triode Q2 is connected with the TL _ IRcontrol end through a resistor R9, the base electrode of the triode Q2 is connected with one end of an infrared emission tube D5, the collector electrode of the triode Q2 is connected with the base electrode of the triode Q3 through a resistor R15, and the collector electrode of the triode Q3 is connected with one end of a filter circuit.

4. The infrared universal remote control circuit based on Bluetooth BLE communication of claim 3, wherein: the emitter of the triode Q3 is connected with the TL _ IRcontrol end through the resistor R11 and the base of the triode Q4 respectively; the collector of the transistor Q4 is connected to the TL _ IRin terminal.

5. The infrared universal remote control circuit based on Bluetooth BLE communication of claim 4, wherein: the other end of the resistor R9 is also connected with the potential of the point A through a capacitor C1.

6. The infrared universal remote control circuit based on Bluetooth BLE communication of claim 5, wherein: one end of the resistor R14 is connected with the transistor Q3, and the other end of the resistor R14 is connected with the TL _ IRcontrol end through a resistor R13.

7. The infrared universal remote control circuit based on Bluetooth BLE communication of claim 6, wherein: the filter circuit comprises a circuit consisting of a resistor R7, a capacitor C12, a capacitor C26 and a resistor R10;

one end of the resistor R7 is connected with a collector of the triode Q2 through an infrared emission tube D5, the other end of the resistor R7 is connected with a collector of the triode Q3 and one end of the resistor R10 through one end of a capacitor C12 and one end of a capacitor C26 respectively, and the other end of the resistor R10 is connected with a TL _ IRin end; the other end of the C12 and the other end of the capacitor C26 are both grounded.

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