CN206594816U - A kind of infrared remote controller - Google Patents

Abstract

The utility model discloses a kind of infrared remote controller, including terminal interface unit, infrared signal processing unit, infrared signal transmitter unit, IR signal reception unit, infrared lamp unit, terminal interface unit includes connector CON1, infrared signal processing unit includes the master chip U1 being connected with connector CON1, infrared signal transmitter unit includes resistance R1, resistance R4 and metal-oxide-semiconductor Q2, master chip U1 is connected through resistance R4 with metal-oxide-semiconductor Q2 grid, infrared lamp unit includes diode D1, metal-oxide-semiconductor Q2 drain electrode is connected through resistance R1 with diode D1 anodes, diode D1 minus earths, IR signal reception unit includes metal-oxide-semiconductor Q1, resistance R2 and infrared receiver processor U2, diode D1 anodes are connected through resistance R2 with infrared receiver processor U2, the infrared receiver processor U2 is connected with metal-oxide-semiconductor Q1 drain electrodes, infrared receiver processor U2 is connected with master chip U1.The utility model infrared remote controller precision is high, circuit is simple, cost is low, be easy to implement.

Description

A kind of infrared remote controller

Technical field

The utility model is related to communication field, more particularly to a kind of infrared remote controller.

Background technology

It is on the increase, is directly controlled for ease of user by mobile phone with infrared remote control work(with the function of smart mobile phone The household electrical appliances of energy, part mobile phone has been provided with function of infrared remote control.By the way that software is preset or network data in mobile phone infrared software The form in storehouse provides the carrier wave used in the infrared remote control of conventional household electrical appliances that is stored with the infrared remote coding storehouse of conventional household electrical appliances, storehouse Frequency and each keyboard-coding information.Corresponding infrared remote coding bag is searched when using by the specifications and models of household electrical appliances, is found After corresponding remote control coding, you can produce infrared signal to quilt by carrier frequency and each keyboard-coding information infrared transmitting circuit Remote control equipment is remotely controlled.

For the remote control coding bag of the household electrical appliances of some known model, it is understood that there may be wrong key or few key the problem of, with And the coding of whole remote control all unknown situations.The mobile phone of function of infrared remote control is supported to additionally provide button study work(in part Can, learning functionality can copy the infrared remote control letter of button by extracting the carrier frequency and keyboard-coding of remote controller key Number.

For the function of infrared remote control in mobile phone, most common way is：Infrared remote control as depicted in figs. 1 and 2 and Mobile phone CPU directly controls infrared transmitting tube to launch in habit scheme, Fig. 1.Fig. 2 adds learning functionality with respect to Fig. 1, is also to pass through GPIO (General Purpose Input Output, universal input/output) infrared waveform of Direct Recognition, passes through software analysis Carrier wave and signal.Such scheme advantage is that circuit is simple, and cost is low, is had the disadvantage because most of function of infrared remote control needs to carry out Carrier modulation, carrier frequency has 38kHz, 40kHz and 58kHz etc., directly produces tens kHz ripple with CPU GPIO mouths control Shape can take larger cpu resource, and operating system is difficult to produce the timing of accurate Microsecond grade, is inevitably brought Error code and carrier frequency drift.Also as shown in Figure 3 and Figure 4, mobile phone CPU does not control infrared transmitting tube or reception directly to some schemes Pipe.But increase ASIC, single-chip microcomputer or a FPGA between CPU and infrared transmitting circuit and receiving circuit, by ASIC, monolithic Machine and FPGA control the transmitting of infrared transmitting tube or the study of reception pipe.This scheme does not produce carrier wave directly due to CPU And infrared coding, the infrared coding learnt is not also received directly, it is not necessary to is taken cpu resource for a long time, will not be caused carrier wave The problem of skew or error code.But due to needing ASIC, single-chip microcomputer or FPGA in this actual implementation of scheme, circuit is extremely Complexity, PCB surface product is big, and cost is higher, and introducing function of infrared remote control to more mobile phones brings obstacle.

Utility model content

The purpose of this utility model be overcome weak point of the prior art there is provided a kind of precision is high, circuit is simple, into This infrared remote control terminating circuit that is low, being easy to implement.

In order to solve the above technical problems, the utility model is solved by following technical proposals：

A kind of infrared remote controller, including terminal interface unit, infrared signal processing unit, infrared signal transmitter unit, IR signal reception unit, infrared lamp unit, wherein, the terminal interface unit is connected with infrared signal processing unit, described Infrared signal processing unit is connected with infrared signal transmitter unit and IR signal reception unit, the infrared signal transmitter unit It is connected with IR signal reception unit with infrared lamp unit, the terminal interface unit includes connector CON1, the infrared letter Number processing unit includes the master chip U1 being connected with connector CON1, and the infrared signal transmitter unit includes resistance R1, electricity R4 and metal-oxide-semiconductor Q2 is hindered, the master chip U1 is connected through resistance R4 with metal-oxide-semiconductor Q2 grid, the infrared lamp unit includes two poles Pipe D1, the metal-oxide-semiconductor Q2 drain electrode are connected through resistance R1 with diode D1 anodes, and the diode D1 minus earths are described red External signal receiving unit include metal-oxide-semiconductor Q1, resistance R2 and infrared receiver processor U2, the diode D1 anodes through resistance R2 with Infrared receiver processor U2 connections, the infrared receiver processor U2 is connected with metal-oxide-semiconductor Q1 drain electrodes, the infrared receiver processor U2 is connected with master chip U1.

Specifically, the infrared signal processing unit also includes electric capacity C4, electric capacity C5 and electric capacity C6, the electric capacity C4, electricity Hold C5 and electric capacity C6 one end is connected with the master chip U1, the end is connected with connector CON1 simultaneously, the electric capacity C4, electric capacity C5 and electric capacity C6 other ends ground connection.

Specifically, the infrared signal transmitter unit also includes resistance R3, electric capacity C1, electric capacity C2 and electric capacity C3, the electricity Hold C1, electric capacity C2 and electric capacity C3 one end be connecteds with metal-oxide-semiconductor Q2 source electrode, the end is while connection metal-oxide-semiconductor Q1 source electrode and R3 One end, the other end of the R3 is connected with master chip U1, and the other end of the R3 is also connected with connector CON1, the electric capacity C1, electric capacity C2 and electric capacity C3 other end ground connection.

Specifically, the infrared receiver also includes resistance R5 and resistance R6, described resistance R5 one end and metal-oxide-semiconductor Q1 grid Pole is connected, and the resistance R5 other ends are connected with master chip U1, and described R6 one end is connected with infrared receiver processor U2, and the end is same When connection metal-oxide-semiconductor Q1 drain electrode, the R6 other ends ground connection.

Specifically, the master chip U1 models ICE40LM1K-CM36, the metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2 models WPM2026-3/TR, the infrared receiver processor U2 models VSOP98260.

The utility model has advantages below and beneficial effect compared with prior art：A kind of infrared remote control electricity of the utility model Road, which does not only have function of infrared remote control, can also infrared learning function, share same circuit diagram so that circuit is simple, while infrared Signal processing unit is by using master chip U1 so that circuit does not produce carrier wave and infrared coding directly, overcomes prior art The problem of producing carrier shift or error code so that infrared remote controller control accuracy is high, and be easy to flexibly control and realize.

Brief description of the drawings

The utility model is described in further detail with reference to the accompanying drawings and detailed description.

Fig. 1 is the first circuit diagram that prior art Infrared Remote-Control Sending controls circuit.

Fig. 2 is the second circuit schematic diagram that prior art Infrared Remote-Control Sending controls circuit.

Fig. 3 is the first circuit diagram of prior art Infrared Remote-Control Sending and learning circuit.

Fig. 4 is the second circuit schematic diagram of prior art Infrared Remote-Control Sending and learning circuit.

Fig. 5 is the circuit diagram of the embodiment of the utility model infrared remote controller one.

Embodiment

The utility model is described in further detail with reference to embodiment and accompanying drawing, but implementation of the present utility model Mode not limited to this.

As shown in figure 5, specific implementation process of the present utility model is as follows：

A kind of infrared remote controller of the utility model includes terminal interface unit, infrared signal processing unit, infrared signal Transmitter unit, IR signal reception unit, infrared lamp unit.Wherein terminal interface unit includes connector CON1, wherein, connection Device CON1 is mainly used in receiving the infrared command of exterior terminal and passes to infrared processing unit or receive infrared processing unit Ultra-red order data.Infrared signal processing unit includes master chip U1, electric capacity C4, electric capacity C5 and electric capacity C6, and master chip U1 can So that infrared remote instruction is converted into infrared electric signal, infrared electric signal can also be decoded into infrared remote instruction, master chip U1 models：ICE40LM1K-CM36, wherein electric capacity C4, electric capacity C5, electric capacity C6 are to be connected in parallel, and they play filtering voltage regulation work With.Infrared signal transmitter unit includes metal-oxide-semiconductor Q2, resistance R1, resistance R3, resistance R4, electric capacity C1, electric capacity C2 and electric capacity C3, its Middle metal-oxide-semiconductor Q2 plays signaling switch effect, metal-oxide-semiconductor Q2 models：WPM2026-3/TR, resistance R1, resistance R3, resistance R4 play limit Stream is acted on, and electric capacity C1, electric capacity C2 and electric capacity C3 are to be connected in parallel, while playing filtering voltage regulation effect.Infrared receiver includes Metal-oxide-semiconductor Q1, resistance R2, resistance R5, resistance R6 and infrared receiver processor U2, metal-oxide-semiconductor Q1 models：WPM2026-3/TR, its Middle metal-oxide-semiconductor Q1 play signaling switch effect, infrared receiver processor U2 weaker infrared electric signal shaping can be enlarged into compared with Strong infrared electric signal, primarily serves signal amplification, signal processor U2 models：VSOP98260.Infrared lamp unit bag D1 containing diode, diode D1 models：IR26-61C/L302/TR8.Connector CON1 is connected with master chip U1, master chip U1 Be connected through resistance R3 with metal-oxide-semiconductor Q2 source electrodes, electric capacity C4, electric capacity C5 and electric capacity C6 one end are connected with master chip U1, the end simultaneously with Connector CON1 connections, electric capacity C4, electric capacity C5 and the electric capacity C6 other ends ground connection, electric capacity C1, electric capacity C2 and electric capacity C3 one end with Metal-oxide-semiconductor Q2 source electrode connection, the end connects metal-oxide-semiconductor Q1 source electrode and R3 one end simultaneously, and the R3 other end and master chip U1 connect Connect, the R3 other end is connected with connector CON1 simultaneously, electric capacity C1, electric capacity C2 and electric capacity C3 other end ground connection, metal-oxide-semiconductor Q2's Drain electrode is connected with resistance R1 one end, and the resistance R1 other ends are connected with diode D1 anode, diode D1 minus earth, Metal-oxide-semiconductor Q2 grid and R4 one end are connected, and the resistance R4 other end is connected with master chip U1, metal-oxide-semiconductor Q1 drain electrode and resistance R6 one end connection, metal-oxide-semiconductor Q1 drain electrode is connected with infrared receiver processor U2 simultaneously, resistance R6 other end ground connection, metal-oxide-semiconductor Q1 grid is connected with resistance R5 one end, and the resistance R5 other end is connected with master chip U1, infrared receiver processor U2 and electricity R2 one end connection is hindered, the resistance R2 other end is connected with diode D1 anode, infrared receiver processor U2 and master chip U1 Connection.

Utility model works principle is as follows：When in infrared remote control, terminal is assigned infrared by terminal interface unit Infrared remote instruction decoding is converted into infrared signal by telecommand to infrared signal processing unit master chip U1, master chip U1, Infrared electric signal out controls metal-oxide-semiconductor Q2 to turn on by resistance R4, diode D1 is then driven by resistance R1 so that two Pole pipe D1 launches correct remote signal, and signal, which is passed to, needs device to be controlled.When in infrared learning, diode D1 connects Receive infrared signal and by resistance R2 flow into IR signal reception processor U2, U2 by inter-process and by outside Q1 with And resistance R6 biasing so that need the infrared signal learnt to be amplified to satisfaction and require, be then flowed into master chip U1, main core The infrared signal received is switched to corresponding ultra-red order code by piece U1, gives terminal interface unit.

Above-described embodiment is the utility model preferably embodiment, but embodiment of the present utility model is not by above-mentioned The limitation of embodiment, it is other it is any without departing from Spirit Essence of the present utility model with made under principle change, modify, replace Generation, combination, simplification, should be equivalent substitute mode, are included within protection domain of the present utility model.

Claims (5)

1. a kind of infrared remote controller, it is characterised in that including terminal interface unit, infrared signal processing unit, infrared signal Transmitter unit, IR signal reception unit, infrared lamp unit, wherein, the terminal interface unit and infrared signal processing unit Connection, the infrared signal processing unit is connected with infrared signal transmitter unit and IR signal reception unit, the infrared letter Number transmitter unit and IR signal reception unit are connected with infrared lamp unit, and the terminal interface unit includes connector CON1, The infrared signal processing unit includes the master chip U1 being connected with connector CON1, and the infrared signal transmitter unit includes Resistance R1, resistance R4 and metal-oxide-semiconductor Q2, the master chip U1 are connected through resistance R4 with metal-oxide-semiconductor Q2 grid, the infrared lamp list Drain electrode of the member including diode D1, the metal-oxide-semiconductor Q2 is connected through resistance R1 with diode D1 anodes, and the diode D1 negative electrodes connect Ground, the IR signal reception unit includes metal-oxide-semiconductor Q1, resistance R2 and infrared receiver processor U2, the diode D1 anodes It is connected through resistance R2 with infrared receiver processor U2, the infrared receiver processor U2 is connected with metal-oxide-semiconductor Q1 drain electrodes, described infrared Reception processing device U2 is connected with master chip U1.

2. infrared remote controller according to claim 1, it is characterised in that the infrared signal processing unit also includes electricity Hold C4, electric capacity C5 and electric capacity C6, the electric capacity C4, electric capacity C5 and electric capacity C6 one end are connected with the master chip U1, and the end is same When be connected with connector CON1, the electric capacity C4, electric capacity C5 and the electric capacity C6 other ends ground connection.

3. infrared remote controller according to claim 1, it is characterised in that the infrared signal transmitter unit also includes electricity The source electrode for hindering R3, electric capacity C1, electric capacity C2 and electric capacity C3, the electric capacity C1, electric capacity C2 and electric capacity C3 one end and metal-oxide-semiconductor Q2 connects Connect, the end connects metal-oxide-semiconductor Q1 source electrode and R3 one end simultaneously, the other end of the R3 is connected with master chip U1, the R3's The other end is also connected with connector CON1, the electric capacity C1, electric capacity C2 and electric capacity C3 other end ground connection.

4. infrared remote controller according to claim 1, it is characterised in that the infrared receiver also includes resistance R5 With resistance R6, described resistance R5 one end is connected with metal-oxide-semiconductor Q1 grids, and the resistance R5 other ends are connected with master chip U1, described R6 one end is connected with infrared receiver processor U2, and the end connects metal-oxide-semiconductor Q1 drain electrodes, the R6 other ends ground connection simultaneously.

5. infrared remote controller according to claim 1, it is characterised in that the master chip U1 models ICE40LM1K- CM36, the metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2 models WPM2026-3/TR, the infrared receiver processor U2 models VSOP98260。