CN105448077A - Mobile terminal infrared remote control method, apparatus and system - Google Patents
Mobile terminal infrared remote control method, apparatus and system Download PDFInfo
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- CN105448077A CN105448077A CN201410374896.XA CN201410374896A CN105448077A CN 105448077 A CN105448077 A CN 105448077A CN 201410374896 A CN201410374896 A CN 201410374896A CN 105448077 A CN105448077 A CN 105448077A
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- mobile terminal
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Abstract
A mobile terminal infrared remote method, an apparatus and a system are disclosed, the method is as follows: detecting a signal corresponding to user input operation, and according to the signal corresponding to the user input operation, obtaining a corresponding control instruction; coding the control instruction, transmitting the coded control instruction by a camera infrared supplementary lighting photodiode arranged on a mobile terminal to correspondingly control a corresponding electronic device. By use of the method, the apparatus and the system, the short infrared transmission range problem can be effectively solved.
Description
Technical field
The present invention relates to wireless communication technology field, particularly relate to a kind of mobile terminal infrared remote control method, Apparatus and system.
Background technology
Infrared technology is a kind of general short-distance wireless communication mode, and wavelength is between 750nm ~ 1mm, is applicable to carry out point-to-point straight-line data transmission.
Existing a lot of household electrical appliance adopt infrared technology, and Infrared remote controller is controlled household electrical appliance by infrared ray.The Infrared remote controller corresponding due to often kind of household electrical appliance is all not identical, so just needs to change Infrared remote controller continually to control corresponding household electrical appliance, brings many inconvenience to the life of people.
At present, market there is the smart mobile phone much with function of infrared remote control, by the button operation of the button operation on mobile phone and traditional Infrared remote controller is mapped, launched after these steering order infrared codings by the infrared remote control module on smart mobile phone, thus control corresponding household electrical appliance.
But there is the shorter problem of Infrared Transmission distance in the existing smart mobile phone with function of infrared remote control.
Summary of the invention
The problem that the embodiment of the present invention solves is that existing Infrared Transmission is apart from short problem.
For solving the problem, the embodiment of the present invention provides a kind of mobile terminal infrared remote control method, comprising: detect the signal that user's input operation is corresponding; The signal corresponding according to described user's input operation, obtains corresponding steering order; Described steering order is encoded; By arranging the infrared light filling diode of shooting on the mobile terminal, described steering order after coding is launched, to control accordingly corresponding electronic equipment.
Optionally, the signal that described detection user input operation is corresponding comprises following at least one: the signal that detection user pressing keys produces and detection user press the signal that touch-screen produces.
Optionally, described button is the volume key of described mobile terminal.
Optionally, described described steering order to be encoded, comprising: adopt the pulse width modulating signal of predeterminated frequency to modulate described steering order.
Optionally, corresponding electronic equipment comprises following at least one: light fixture, televisor, air-conditioning, washing machine and refrigerator.
Optionally, described corresponding electronic equipment to be controlled accordingly, comprising: the duty opening or closing described electronic equipment, regulate described electronic equipment current.
For solving the problem, the embodiment of the present invention additionally provides a kind of mobile terminal infrared remote-control device, comprising: detecting unit, for detecting signal corresponding to user's input operation; Acquiring unit, for the signal corresponding according to described user's input operation, obtains corresponding steering order; Coding unit, for encoding to described steering order; Transmitting element, for the infrared light filling diode of shooting by arranging on the mobile terminal, launches described steering order after coding, to control accordingly corresponding electronic equipment.
Optionally, described coding unit is modulated described steering order for adopting the pulse width modulating signal of predeterminated frequency.
For solving the problem, the embodiment of the present invention also provides a kind of mobile terminal infrared remote control system, comprising: button; Controller, is electrically connected with described button, is suitable for detecting the signal of user by described key-press input, and according to the signal that described user inputs, obtains corresponding steering order; Coding circuit, is suitable for encoding to described steering order; To make a video recording infrared light filling diode, for the steering order after described coding circuit coding is launched.
Optionally, described button is the volume key of described mobile terminal.
Optionally, the first input end of described coding circuit is connected with the data sending terminal mouth of described controller, comprise: the first resistance that first end is connected with the data sending terminal mouth of described controller and the second resistance, second end of described first resistance is connected with the base stage of the first logic switch, and the second end of described second resistance is connected with the first voltage;
Second input end of described coding circuit is connected with the pulse-length modulation port of described controller, comprise: the 3rd resistance that first end is connected with the pulse-length modulation port of described controller and the 4th resistance, second end of described 3rd resistance is connected with the base stage of the second logic switch, and the second end of described 4th resistance is connected with described first voltage; The emitter of described second logic switch is connected with the collector of described first logic switch.
Optionally, the first end of described shooting flash light compensation diode is connected with the emitter of described first logic switch, and the second end is connected with the first end of the 5th resistance, and the second end of described 5th resistance is connected with the second voltage source.
Compared with prior art, the technical scheme of the embodiment of the present invention has the following advantages:
By the infrared light filling diode of shooting on employing mobile terminal as emitter, will launch through the steering order of coding, to control accordingly corresponding electronic equipment.Because the power of infrared light filling diode of making a video recording is comparatively large, therefore Infrared Transmission distance can be improved.Meanwhile, owing to not needing to increase extra Infrared Projector, because this reducing production cost.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of a kind of mobile terminal infrared remote control method in the embodiment of the present invention;
Fig. 2 is the structural representation of a kind of mobile terminal infrared remote-control device in the embodiment of the present invention;
Fig. 3 is the circuit diagram of a kind of mobile terminal infrared remote control system in the embodiment of the present invention.
Embodiment
Existing a lot of household electrical appliance adopt infrared technology, and Infrared remote controller is controlled household electrical appliance by infrared ray.The Infrared remote controller corresponding due to often kind of household electrical appliance is all not identical, so just needs to change Infrared remote controller continually to control corresponding household electrical appliance, brings many inconvenience to the life of people.
At present, market there is the smart mobile phone much with function of infrared remote control, by the button operation of the button operation on mobile phone and traditional Infrared remote controller is mapped, launched after these steering order infrared codings by the infrared remote control module on smart mobile phone, thus control corresponding household electrical appliance.But there is the shorter problem of Infrared Transmission distance in the existing infrared ray dispensing device had on the smart mobile phone of function of infrared remote control.
In the embodiment of the present invention, by the infrared light filling diode of shooting on employing mobile terminal as emitter, will launch through the steering order of coding, to control accordingly corresponding electronic equipment.Because the power of infrared light filling diode of making a video recording is comparatively large, therefore Infrared Transmission distance can be improved.Meanwhile, owing to not needing to increase extra Infrared Projector, because this reducing production cost.
For enabling above-mentioned purpose, the feature and advantage of the embodiment of the present invention more become apparent, below in conjunction with accompanying drawing, specific embodiments of the invention are described in detail.
Step S101, detects the signal that user's input operation is corresponding.
In concrete enforcement, user's input operation can be the operation of user's pressing keys, and such as, user presses volume key or a certain letter key.User's input operation also can be the operation that user presses touch-screen, and such as, the finger of user slides on the touchscreen.When user carries out input operation, mobile terminal controller receives corresponding signal, and performs step S102.
In an embodiment of the present invention, user's input operation is the operation that user presses volume key, adds by pressing the signal that volume key and the input of Att key control electronic equipment.In actual applications, electronic equipment can comprise all electronic equipments with infrared receiving module.Such as, there are the household electrical appliance such as the lighting of infrared receiving module, air-conditioning, televisor, washing machine, refrigerator.
Step S102, the signal corresponding according to described user's input operation, obtains corresponding steering order.
In concrete enforcement, the mapping relations of signal corresponding to user's input operation and steering order can be pre-set.
The mapping relations of the signal that input operation is corresponding and steering order can be arranged according to the personal like of user.Such as, corresponding to a certain electronic equipment, user presses the input operation adding volume key and Att key simultaneously and corresponds to opening or closing of electronic equipment, and user only presses and adds volume key or only press the current operating state that Att key can correspond to adjustment electronic equipment.
And for example, corresponding to a certain electronic equipment, user presses the duration adding volume key when reaching certain value continuously, corresponding to the unlatching of electronic equipment; When the duration that user presses Att key continuously reaches certain value, corresponding to the closedown of electronic equipment; User only presses and adds volume key or only press the current operating state that Att key can correspond to adjustment electronic equipment.
Such as, corresponding to lighting, user presses simultaneously and adds volume key and Att key for opening lighting, and user's pressing adds volume key and corresponds to and heightened by the lamplight brightness of lighting, and user presses Att key and corresponds to and turned down by the lamplight brightness of lighting.
And for example, corresponding to air-conditioning, user press continuously add volume key duration more than 3s time, open corresponding to air-conditioning; When the duration that user presses Att key continuously reaches 3s, close corresponding to air-conditioning; User's pressing adds when once adding volume key, corresponding to the temperature value heightening air-conditioning; When user presses an Att key, corresponding to the temperature value turning down air-conditioning.
In actual applications, according to actual conditions, the mapping relations of signal corresponding to user's input operation and steering order can be set, and default mapping relations are stored in mobile terminal.When mobile terminal detects signal corresponding to user's input operation, the steering order to electronic equipment can be obtained.
Step S103, encodes to described steering order.
In concrete enforcement, after the mapping relations by presetting get the steering order to electronic equipment, encoding operation can be carried out to steering order, after encoding operation is complete, performing step S104.
In an embodiment of the present invention, carrying out encoding operation to steering order can be adopt the pulse width modulating signal of predeterminated frequency to modulate steering order, predeterminated frequency can be 38KHz, also can be 36KHz, 40KHz equifrequent, can also be other predeterminated frequency.
Step S104, by arranging the infrared light filling diode of shooting on the mobile terminal, launches described steering order after coding.
In embodiments of the present invention, the steering order after coding can by the infrared light filling diode emitter of shooting.Infrared light filling diode of making a video recording is that mobile terminal is preset, and can be arranged on the back side of mobile terminal, adjacent with camera, also can be arranged on other positions of mobile terminal.
After the steering order after coding being launched by the infrared light filling diode of shooting, corresponding electronic device unit can receive the signal of infrared light filling diode emitter of making a video recording, and carry out decoding process to the received signal, to obtain corresponding control signal, the control module of electronic equipment carries out corresponding control operation according to corresponding control signal to electronic equipment again.
Such as, steering order is the instruction of opening illuminating lamp, after then the steering order after coding being launched, infrared receiving device on corresponding illuminating lamp receives the signal of the infrared light filling diode emitter of shooting, obtain the steering order after coding, carry out decoding process to it, the steering order obtained is for opening illuminating lamp, then the controller control illuminating lamp of illuminating lamp is opened.
And for example, steering order is turn down the instruction of air-conditioner temperature, after then the steering order after coding being launched, infrared receiving device on corresponding air-conditioning receives the signal of the infrared light filling diode emitter of shooting, obtain the steering order after coding, carry out decoding process to it, the steering order obtained is turn down the instruction of air-conditioner temperature, and the temperature of air-conditioning is turned down by the controller of air-conditioning.
Visible, by the infrared light filling diode of shooting on employing mobile terminal as emitter, will launch through the steering order of coding, to control accordingly corresponding electronic equipment.Because the power of infrared light filling diode of making a video recording is comparatively large, therefore Infrared Transmission distance can be improved.Meanwhile, owing to not needing to increase extra Infrared Projector, because this reducing production cost.
The embodiment of the present invention additionally provides a kind of mobile terminal infrared remote-control device 20, with reference to Fig. 2, comprising: detecting unit 201, acquiring unit 202, coding unit 203 and transmitting element 204, wherein:
Detecting unit 201, for detecting signal corresponding to user's input operation;
Acquiring unit 202, for the signal corresponding according to described user's input operation, obtains corresponding steering order;
Coding unit 203, for encoding to described steering order;
Transmitting element 204, for the infrared light filling diode of shooting by arranging on the mobile terminal, launches described steering order after coding, to control accordingly corresponding electronic equipment.
In concrete enforcement, described coding unit 203 may be used for adopting the pulse width modulating signal of predeterminated frequency to modulate described steering order.
The embodiment of the present invention also provides a kind of circuit structure diagram of mobile terminal infrared remote control system, with reference to Fig. 3, comprising: button, controller, coding circuit and infrared light filling diode of making a video recording, wherein:
In an embodiment of the present invention, button can be the volume key of mobile terminal, with reference to volume key S1 and S2 in Fig. 3.Button can be arranged on the frame of mobile terminal, also can be arranged on the back side of mobile terminal.Such as, volume key is arranged in the right edge of mobile terminal.
Controller is electrically connected with button, is suitable for the respective signal that reception user is inputted by pressing keys, and is converted into corresponding steering order according to the signal of user's pressing keys input.Can prestore the signal of user's pressing keys input and the mapping relations of steering order in the controller, mapping relations can set according to personal like.
Coding circuit is electrically connected with controller, and the steering order got is inputed to coding circuit by controller, and coding circuit carries out coded treatment to steering order, and the steering order after coding is gone out by the infrared light filling diode emitter of shooting.
In an embodiment of the present invention, controller is connected with oscillatory circuit, can be produced the square wave of corresponding frequencies by oscillatory circuit.Oscillatory circuit is made up of crystal oscillator Y1 and electric capacity C1, electric capacity C2.Controller is also connected with direct voltage source VDD, provides galvanic current pressure by direct voltage source to controller, and controller can be worked normally.
In an embodiment of the present invention, the first input end of coding circuit is data input pin, is connected with the data sending terminal mouth (TX port) of controller, is suitable for the steering order receiving the transmission of TX port.Second input end of coding circuit is carrier input, connects with pulse-length modulation (PulseWidthModulation, the PWM) port of controller, is suitable for modulating steering order.
In embodiments of the present invention, the first input end of coding circuit can comprise: the first resistance R1, the second resistance R2, the first voltage VDD and the first logic switch, and the second input end can comprise: the 3rd resistance R3, the 4th resistance R4 and the second logic switch.Logic switch can be triode, also can be metal-oxide-semiconductor, can also be other on-off element.In an embodiment of the present invention, the first logic switch, the second logic switch, the 3rd logic switch are triode.
In an embodiment of the present invention, the first end of the first resistance R1 is connected with the TX port of controller, and second end of the first resistance R1 is connected with the base stage of triode Q1.After controller gets steering order, from TX port, steering order is exported, through the first resistance R1, steering order is inputed to the base stage of triode Q1.Second resistance R2 is pull-up resistor, and first end is connected with TX port, and the second end is connected with the first voltage VDD.
The first end of the 3rd resistance R3 is connected with the PWM port of controller, and second end of the 3rd resistance R3 is connected with the base stage of triode Q2, and the PWM ripple of the fixed frequency of generation is inputed to the base stage of triode Q2 by controller by the 3rd resistance.4th resistance R4 is pull-up resistor, and first end is connected with PWM port, and second segment is connected with the first voltage VDD.The collector of triode Q1 is connected with the emitter of triode Q2, adopts the carrier wave on triode Q2 to modulate the steering order on triode Q1.
In an embodiment of the present invention, the resistance of the first resistance R1 is 1K Ω, and the resistance of the second resistance R2 is 10K Ω, and the resistance of the 3rd resistance R3 is 1K Ω, and the resistance of the 4th resistance R4 is 10K Ω.Triode Q1 is PNP type triode, and triode Q2 is PNP type triode, and triode Q3 is NPN type triode.
The emitter of the 3rd logic switch is connected with the first end of the infrared light filling diode D1 of shooting, and second end of the infrared light filling diode D1 that makes a video recording is connected with the first end of resistance R5, and second end of resistance R5 is connected with the second voltage VCC.
Below the principle of work of the mobile terminal infrared remote control system in the embodiment of the present invention is described in detail:
Controller detects the signal that the input operation of user's pressing keys is corresponding, according to the mapping relations preset, obtains corresponding steering order.
Such as, user presses a volume key S1, and controller receives after user presses the signal of operation correspondence of a volume key S1, according to the mapping relations preset, pressing keys S1 is corresponding to the brightness heightening lighting, then the steering order that controller gets is heighten the brightness of lighting.
Controller gets steering order, and generation frequency is that the data of square wave to infrared transmission of 38KHz are modulated.The square wave of the 38KHz produced by the PWM functional realiey of controller, and is exported by the PWM port of controller by the square wave of 38KHz, is transferred to the base stage of triode Q2 through the 3rd resistance R3.The TX port of data from controller to be sent exports in a serial fashion, is transferred to the base stage of triode Q1 through the first resistance R1.
When the data that TX port exports are " 0 ", triode Q1 conducting, because the collector of triode Q1 is connected with the emitter of triode Q2, be then that the data that TX port exports are modulated by the square wave of 38KHz by the frequency on triode Q2, generated frequency is the carrier signal of 38KHz, and is launched by signal with the form of light pulse by the infrared light filling diode D1 of shooting.
Corresponding electronic equipment receives light pulse signal, and carry out demodulation process to light pulse signal, obtain steering order, the controller of electronic equipment, according to corresponding steering order, operates accordingly to electronic equipment.
In embodiments of the present invention, infrared transmitter circuit adopts the infrared light filling diode D1 of shooting as infrared dispensing device, shares an infrarede emitting diode with shooting light filling circuit.When carrying out infrared data and sending, triode Q3 ends, and camera light filling is closed.When making a video recording, triode Q1 and triode Q2 ends, and controller, by GPIO1 port controlling triode Q3 conducting, carries out shooting light filling.GPIO1 port is connected with the base stage of triode Q3, and the collector of triode Q3 is connected with the first end of the infrared light filling diode D1 of shooting.
When TX is " 1 ", triode Q1 and triode Q2 ends, the pull-up second resistance R2 be connected with triode Q1 pulls into high level the base voltage of triode Q1, the pull-up resistor R4 be connected with triode Q2 pulls into high level the base voltage of triode Q2, ensure that triode Q1 and triode Q2 reliably ends respectively, the infrared light filling diode D1 that then now makes a video recording cannot carry out infrared transmission, therefore now can carry out shooting light filling.
As can be seen here, by the infrared light filling diode of shooting on employing mobile terminal as emitter, will launch through the steering order of coding, to control accordingly corresponding electronic equipment.Because the power of infrared light filling diode of making a video recording is comparatively large, therefore Infrared Transmission distance can be improved.Meanwhile, owing to not needing to increase extra Infrared Projector, because this reducing production cost.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is that the hardware that can carry out instruction relevant by program has come, this program can be stored in a computer-readable recording medium, and storage medium can comprise: ROM, RAM, disk or CD etc.
Although the present invention discloses as above, the present invention is not defined in this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.
Claims (12)
1. a mobile terminal infrared remote control method, is characterized in that, comprising:
Detect the signal that user's input operation is corresponding;
The signal corresponding according to described user's input operation, obtains corresponding steering order;
Described steering order is encoded;
By arranging the infrared light filling diode of shooting on the mobile terminal, described steering order after coding is launched, to control accordingly corresponding electronic equipment.
2. mobile terminal infrared remote control method as claimed in claim 1, is characterized in that, signal corresponding to described detection user input operation comprises following at least one: detect signal that user's pressing keys produces and detect user and press the signal that touch-screen produces.
3. mobile terminal infrared remote control method as claimed in claim 2, it is characterized in that, described button is the volume key of described mobile terminal.
4. mobile terminal infrared remote control method as claimed in claim 1, is characterized in that, describedly encodes to described steering order, comprising: adopt the pulse width modulating signal of predeterminated frequency to modulate described steering order.
5. mobile terminal infrared remote control method as claimed in claim 1, it is characterized in that, corresponding electronic equipment comprises following at least one: light fixture, televisor, air-conditioning, washing machine and refrigerator.
6. mobile terminal infrared remote control method as claimed in claim 5, is characterized in that, describedly controls accordingly corresponding electronic equipment, comprising: the duty opening or closing described electronic equipment, regulate described electronic equipment current.
7. a mobile terminal infrared remote-control device, is characterized in that, comprising:
Detecting unit, for detecting signal corresponding to user's input operation;
Acquiring unit, for the signal corresponding according to described user's input operation, obtains corresponding steering order;
Coding unit, for encoding to described steering order;
Transmitting element, for the infrared light filling diode of shooting by arranging on the mobile terminal, launches described steering order after coding, to control accordingly corresponding electronic equipment.
8. mobile terminal infrared remote-control device as claimed in claim 7, it is characterized in that, described coding unit is modulated described steering order for adopting the pulse width modulating signal of predeterminated frequency.
9. a mobile terminal infrared remote control system, is characterized in that, comprising:
Button;
Controller, is electrically connected with described button, is suitable for detecting the signal of user by described key-press input, and according to the signal that described user inputs, obtains corresponding steering order;
Coding circuit, is suitable for encoding to described steering order;
To make a video recording infrared light filling diode, for the steering order after described coding circuit coding is launched.
10. mobile terminal infrared remote control system as claimed in claim 9, it is characterized in that, described button is the volume key of described mobile terminal.
11. mobile terminal infrared remote control systems as claimed in claim 9, it is characterized in that, the first input end of described coding circuit is connected with the data sending terminal mouth of described controller, comprise: the first resistance that first end is connected with the data sending terminal mouth of described controller and the second resistance, second end of described first resistance is connected with the base stage of the first logic switch, and the second end of described second resistance is connected with the first voltage;
Second input end of described coding circuit is connected with the pulse-length modulation port of described controller, comprise: the 3rd resistance that first end is connected with the pulse-length modulation port of described controller and the 4th resistance, second end of described 3rd resistance is connected with the base stage of the second logic switch, and the second end of described 4th resistance is connected with described first voltage; The emitter of described second logic switch is connected with the collector of described first logic switch.
12. mobile terminal infrared remote control systems as claimed in claim 11, it is characterized in that, the first end of described shooting flash light compensation diode is connected with the emitter of described first logic switch, second end is connected with the first end of the 5th resistance, and the second end of described 5th resistance is connected with the second voltage source.
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| CN201410374896.XA CN105448077B (en) | 2014-07-31 | 2014-07-31 | Mobile terminal infrared remote control method, apparatus and system |
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| CN105448077B (en) | 2019-04-30 |
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