CN203933643U - A kind of wireless infrared repeater - Google Patents

A kind of wireless infrared repeater Download PDF

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Publication number
CN203933643U
CN203933643U CN201420348973.XU CN201420348973U CN203933643U CN 203933643 U CN203933643 U CN 203933643U CN 201420348973 U CN201420348973 U CN 201420348973U CN 203933643 U CN203933643 U CN 203933643U
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infrared
connects
pin
resistance
wifi
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Chinese (zh)
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陈新刚
张惠兴
钟文涛
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TCL Corp
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TCL Corp
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Abstract

The utility model discloses a kind of wireless infrared repeater, it comprises lithium battery, charging control module, power transfer module, WiFi control module and infrared transceiver module, power transfer module connects WiFi control module, infrared transceiver module and charging control module, WiFi control module connects infrared transceiver module, and charging control module connects lithium battery; By lithium battery power supply, make the placement location of wireless infrared repeater unrestricted; Charging control module realizes chargeable and charge protection to lithium battery, avoids user to change lithium battery and brings extra-pay, has improved charging security; The infrared signal that infrared transceiver module energy reception carrier frequency is preset range, the compatibility of the remote controller of raising; Infrared transceiver module can also be launched corresponding infrared signal from different directions, and the problem of avoiding certain direction to be blocked causing infrared control to lose efficacy, to improve the success rate to electrical equipment control.

Description

A kind of wireless infrared repeater
Technical field
The utility model relates to infrared technique field, particularly a kind of wireless infrared repeater.
Background technology
Along with the develop rapidly of electronic technology and the raising of people's living standard, in each household family, the kind of household electrical appliance is more and more, as: television set, air conditioner, Set Top Box, DVD player, electric fan etc.These electronic products are all equipped with corresponding remote controller separately, and all adopt infrared control mode.But, can not be general between these remote controllers, and due to remote controller One's name is legion, during use, need user to find corresponding remote controller, there is unavoidably the problem that remote controller can not find or obscured use, to straighforward operation, make troubles.
At present, along with the fast development of Internet technology, the wireless lan (wlan) in family is comparatively universal.It is that very general technology is applied that smart mobile phone is connected to by WiFi that described WLAN (wireless local area network) surfs the Net.
In conjunction with infrared remote control and WiFi technology, there is on the market a kind of wireless infrared repeater, can launch ultra-red order by the mode of radio frequency communication, thereby control household electrical appliance.User passes through the wireless infrared repeater keyboard-coding of purpose learning remote controller in advance, and mobile phone terminal is installed corresponding control program, and wireless infrared repeater and mobile phone are all linked into the WLAN (wireless local area network) of family by WiFi, just can control each household electrical appliance like this by mobile phone.
Existing wireless infrared repeater generally all possesses following characteristics:
1), conventionally by WiFi control module+single chip machine controlling circuit+peripheral circuit etc., formed on hardware, between WiFi control module and single-chip microcomputer, adopt serial communication to carry out exchanges data, its control mode more complicated, R&D costs are higher.
2), all possess infrared remote control learning functionality, but the carrier frequency of the infrared remote-controlled signal of study can only be 38kHz.And the carrier frequency of some remote controllers is 36kHz, 40kHz, 56kHz; Existing wireless infrared repeater can not be learnt all remote controllers, and compatibility is lower.
3), adopt power supply adaptor power supply, need to be electrically connected to city, placement location has limitation, can only be near supply socket.If placement location has shelter or more partially, stops the transmitting of infrared signal, cause infrared control to lose efficacy.
Thereby prior art need to improve.
Utility model content
In view of above-mentioned the deficiencies in the prior art part, the purpose of this utility model is to provide a kind of wireless infrared repeater, to solve the limited and carrier frequency that can the receive problem seldom of existing wireless infrared repeater placement location.
In order to achieve the above object, the utility model has been taked following technical scheme:
A wireless infrared repeater, is connected with outside power supply adaptor, and wherein, described wireless infrared repeater comprises: lithium battery;
For controlling and detect the charged state of lithium battery, the charging control module of selecting lithium battery power supply or power supply adaptor power supply and detecting the electric weight of lithium battery;
For the supply voltage of charging control module output being converted to the power transfer module of operating voltage;
For detection of the electric weight of lithium battery and carry out low electric weight prompting, according to the operational order of user's input, generate the WiFi control module of infrared control signal;
For receiving the infrared signal that carrier frequency that remote controller sends is preset range and carrying out signal processing, and the infrared transceiver module of launching from different directions corresponding infrared signal according to infrared control signal;
Described power transfer module connects WiFi control module, infrared transceiver module and charging control module, and described WiFi control module connects infrared transceiver module, and described charging control module connects lithium battery.
Described wireless infrared repeater, wherein, described WiFi control module comprises WiFi chip, antenna, the first resistance, the second resistance, the first triode and a LED lamp; The ANT pin of described WiFi chip connects antenna, the MICRO_GPIO_3 pin of WiFi chip connects the base stage of the first triode by the first resistance, the collector electrode of described the first triode connects the negative pole of a LED lamp, the positive pole of the one LED lamp connects the output of power transfer module, the grounded emitter of described the first triode by the second resistance.
Described wireless infrared repeater, wherein, the model of described WiFi chip is BM09, described the first triode is NPN triode.
Described wireless infrared repeater, wherein, described charging control module comprises charging integrated chip, switch, the first socket, the 2nd LED lamp, the 3rd resistance, the 4th resistance, the 5th resistance and the first metal-oxide-semiconductor, the IN pin of described charging integrated chip connects the VBUS pin of the first socket, the TS pin of charging integrated chip connects the 3rd end of lithium battery, the BAT pin of charging integrated chip connects the 1st end of lithium battery, one end of the drain electrode of the first metal-oxide-semiconductor and the 3rd resistance, the other end of described the 3rd resistance connects the MICRO_GPIO_6 pin of WiFi chip, also by the 4th grounding through resistance, the BGATE pin of charging integrated chip connects the grid of the first metal-oxide-semiconductor, the OUT pin of charging integrated chip connects one end of source electrode and the switch of the first metal-oxide-semiconductor, the other end of described switch connects the input of power transfer module, described charging integrated chip pin connects the negative pole of the 2nd LED lamp and the MICRO_GPIO_5 pin of WiFi chip, and the positive pole of described the 2nd LED lamp connects the LDO pin of charging integrated chip, also by the 5th grounding through resistance.
Described wireless infrared repeater, wherein, the model of described charging integrated chip is bq25060, and described switch is manual power switch, and described the first socket is MicroUSB socket, and described the first metal-oxide-semiconductor is PMOS pipe.
Described wireless infrared repeater, wherein, described power transfer module comprises conversion integrated chip and inductance, and the described model of changing integrated chip is RT8062, and the VIN pin of described conversion integrated chip is connected charging control module with EN pin; The LX pin of conversion integrated chip connects one end of inductance, and the other end of inductance connects WiFi control module and infrared transceiver module.
Described wireless infrared repeater, wherein, described infrared transceiver module comprises:
For receiving the infrared signal that carrier frequency that remote controller sends is preset range and being transferred to the receiving element that WiFi chip carries out corresponding signal processing; Described preset range is 20kHz ~ 60kHz;
For controlling infrared LED lamp on/off according to the infrared control signal of WiFi chip output, to launch the transmitter unit of corresponding infrared signal;
Described receiving element is all connected WiFi chip with transmitter unit.
Described wireless infrared repeater, wherein, described transmitter unit comprises the first transmitter unit, the second transmitter unit, the 3rd transmitter unit, the 4th transmitter unit, the 5th transmitter unit, the 6th transmitter unit and the 7th transmitter unit;
Described the first transmitter unit comprises the first infrared LED lamp, the second triode, the 6th resistance, the 7th resistance and the first electric capacity; Described the second triode is NPN triode; The base stage of described the second triode connects the MICRO_GPIO_9 pin of WiFi chip by the 6th resistance, the collector electrode of the second triode connects the negative pole of the first infrared LED lamp, the positive pole of the first infrared LED lamp connects one end of the 7th resistance, the other end of the 7th resistance connects power transfer module, also by the first capacity earth, the grounded emitter of described the second triode.
Described wireless infrared repeater, wherein, described lithium battery is that battery capacity is the lithium ion battery of 2100mAh.
Compared to prior art, the wireless infrared repeater that the utility model provides, powers by built-in lithium battery, and the position that wireless infrared repeater is placed is not limited in supply socket annex, just has placing space flexibly; By charging control module, control and detect the charged state of lithium battery, the electric weight of selecting lithium battery power supply or power supply adaptor power supply and detecting lithium battery, lithium battery is realized to chargeable and charge protection, avoid user to change lithium battery and bring extra-pay, improved charging security; The infrared signal that described infrared transceiver module energy reception carrier frequency is preset range, the compatibility of the remote controller of raising; And infrared transceiver module can be launched corresponding infrared signal from different directions according to infrared control signal, realize multi-angle transmitting, the problem of avoiding certain direction to be blocked causing infrared control to lose efficacy, to improve the success rate to electrical equipment control.
Accompanying drawing explanation
The structured flowchart of the Application Example of the wireless infrared repeater that Fig. 1 provides for the utility model.
The circuit diagram of WiFi control module in the wireless infrared repeater that Fig. 2 provides for the utility model embodiment.
The circuit diagram of charging control module and lithium battery in the wireless infrared repeater that Fig. 3 provides for the utility model embodiment.
The circuit diagram of power transfer module in the wireless infrared repeater that Fig. 4 provides for the utility model embodiment.
The circuit diagram of infrared transceiver module in the wireless infrared repeater that Fig. 5 provides for the utility model embodiment.
The working state schematic representation of WiFi chip in the wireless infrared repeater that Fig. 6 provides for the utility model embodiment.
Embodiment
The utility model provides a kind of wireless infrared repeater, for making the purpose of this utility model, technical scheme and effect clearer, clear and definite, referring to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, the infrared control system that the present embodiment provides comprises mobile phone 10, router two 0, wireless infrared repeater 30 and electrical equipment 40, described mobile phone 10 and wireless infrared repeater 30 adopt WiFi mode and router two 0 wireless connections, make to realize wireless telecommunications between mobile phone 10 and wireless infrared repeater 30.The control command that mobile phone 10 sends is transferred in wireless infrared repeater 30 and is decoded by router two 0, is converted to corresponding infrared signal and is emitted to electrical equipment 40, realizes corresponding electrical equipment 40 and controls.
During concrete enforcement, in described mobile phone, need first to install the application program of controlling wireless infrared repeater.Between mobile phone, router, wireless infrared repeater, by wireless WiFi, interconnect.Then by mobile phone, control wireless infrared repeater and carry out infrared coding study, select the remote controller key that will learn and press, according to the prompting above mobile phone, complete the study of a button; Repeat process above, can complete the study of a plurality of remote controllers, a plurality of buttons.Finally the remote controller interface of the application program of display radio infrared transponder in mobile phone, selects remote controller, the selection of learning to control button and press and can carry out electrical equipment control.
Wherein, described wireless infrared repeater 30 comprises WiFi control module 100, charging control module 200, power transfer module 300, infrared transceiver module 400 and lithium battery 500.Described power transfer module 300 connects WiFi control module 100, infrared transceiver module 400 and charging control module 200, and described WiFi control module 100 connects infrared transceiver module 400, and described charging control module 200 connects lithium battery 500.During concrete enforcement, charging control module 200 external power adapters are to whole wireless infrared repeater 30 power supplies.Described charging control module 200 is for controlling the charged state of lithium battery 500 and selecting supply power mode (selecting lithium battery power supply or power supply adaptor power supply), can detect whether in charged state, can detect the electric weight of lithium battery 500 and feed back to WiFi control module 100, making WiFi control module 100 realize battery low-electricity quantity prompting; The temperature of lithium battery 500 in the time of detecting charging, when lithium battery 500 is overheated, stop charging, carry out charge protection; Can also select by external power supply adaptor power supply or lithium battery 500 power supplies by button.The operating voltage VCC that described power transfer module 300 can be converted to the supply voltage VDD of the 5V of charging control module 200 outputs 3.3V powers to modules.
Before mobile phone control apparatus, need to carry out the study of infrared remote control data to described wireless infrared repeater, first remote controller be aimed to wireless infrared repeater and pressed any button, remote controller is launched the infrared signal of the control command of carrying this button.Described infrared transceiver module 400 receives the infrared signal that each remote controller sends, and the preset range of the carrier frequency that it can receive is 20kHz ~ 60kHz, and it carries out infrared signal identification and record by described infrared signal transmission to WiFi control module 100.Afterwards, WiFi control module 100 by described infrared signal be converted to infrared data that mobile phone can identify by antenna transmission to router, router is transmitted to mobile phone storage again, makes handset identity go out the infrared remote instruction that each button is corresponding, realizes the study of infrared remote control data.
When user launches corresponding operational order to router by mobile phone during by next button, router is transferred to the antenna reception in WiFi control module 100 after receiving, after decoding, generate corresponding infrared control signal (low and high level) to infrared transceiver module 400, described infrared transceiver module 400 is launched corresponding infrared signal to corresponding electrical equipment from different directions according to infrared control signal.
Please refer to Fig. 2, described WiFi control module 100 comprises WiFi chip U0, antenna A1, the first resistance R 1, the second resistance R 2, the first triode Q1 and a LED lamp D1; The model of described WiFi chip U0 is BM09, and described the first triode Q1 is NPN triode; The ANT pin of described WiFi chip U0 connects antenna A1, the MICRO_GPIO_3 pin of WiFi chip U0 connects the base stage of the first triode Q1 by the first resistance R 1, the collector electrode of described the first triode Q1 connects the negative pole of a LED lamp, the positive pole of the one LED lamp connects the output of power transfer module 300, the grounded emitter of described the first triode Q1 by the second resistance R 2.
It will be appreciated that, described WiFi chip U0 and peripheral circuit (as shown in Figure 2) thereof are prior art, this enforcement is by being used some pins of WiFi chip U0 to be connected with charging control module 200, power transfer module 300, the infrared transceiver module 400 of increase, to increase new control function, specifically comprise:
The VDD_WIFI pin of WiFi chip U0, VBAT pin all connect the output of power transfer module 300, to obtain operating voltage VCC.
MICRO_GPIO_5 pin, the MICRO_GPIO_6 pin of described WiFi chip U0 all connect charging control module 200, realize respectively charged state detection and electric quantity of lithium battery and detect.
MICRO_GPIO_1 pin, the MICRO_GPIO_9 pin of described WiFi chip U0 all connect infrared transceiver module 400, realize respectively reception and the emission control of infrared signal.
Wherein, described the first resistance R 1, the second resistance R 2, the first triode Q1 and a LED lamp D1 form the low electric weight detecting unit 110 of lithium battery, when electric quantity of lithium battery is during lower than default battery threshold, the battery capacity indication signal LED_P of the MICRO_GPIO_3 pin output high level of WiFi chip U0 controls a LED lamp and lights.
In order to make user whether understand wireless infrared repeater 30 in work, described WiFi control module 100 also comprises by two resistance, a triode and an operating state indicating member 120 that LED lamp forms, its particular circuit configurations is similar with the low electric weight detecting unit of connected mode and lithium battery, unique difference is that it is connected with the MICRO_GPIO_2 pin of WiFi chip U0, its circuit structure is not repeated herein, specifically please refer to Fig. 2.When wireless infrared repeater 30 work, the work index signal LED_S of the MICRO_GPIO_2 pin output high level of WiFi chip U0 controls LED lamp and lights.
In like manner, in order to make user whether understand wireless infrared repeater 30 in infrared data learning state, described WiFi control module 100 also comprises by two resistance, a triode and an operating state indicating member that LED lamp forms, its particular circuit configurations is similar with the low electric weight detecting unit of connected mode and lithium battery, unique difference is that it is connected with the MICRO_GPIO_4 pin of WiFi chip U0, its circuit structure is not repeated herein, specifically please refer to Fig. 2.When wireless infrared repeater 30 (now can not carry out infrared remote control) in infrared data learning process, the study index signal LED_W of the MICRO_GPIO_4 pin of WiFi chip U0 output high level controls corresponding LED lamp and lights.
In the present embodiment, described wireless infrared repeater 30 provides operating voltage VCC by power transfer module 300, and operating voltage VCC to be supply voltage VDD by charging control module 200 output convert.
Please refer to Fig. 3, described charging control module 200 comprises charging integrated chip U1, interrupteur SW 1, the first socket J1, the 2nd LED lamp D2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5 and the first metal-oxide-semiconductor Qa, the model of described charging integrated chip U1 is bq25060, and described interrupteur SW 1 is manual power switch, and described the first socket J1 is MicroUSB socket, and described the first metal-oxide-semiconductor Qa is PMOS pipe, the IN pin of described charging integrated chip U1 connects the VBUS pin of the first socket J1, the TS pin of charging integrated chip U1 connects the 3rd end (battery temperature test side) of lithium battery 500, the BAT pin of charging integrated chip U1 connects the 1st end (anode) of lithium battery 500, one end of the drain electrode of the first metal-oxide-semiconductor Qa and the 3rd resistance R 3, the other end of described the 3rd resistance R 3 connects the MICRO_GPIO_6 pin of WiFi chip U0, also by the 4th resistance R 4 ground connection, the BGATE pin of charging integrated chip U1 connects the grid of the first metal-oxide-semiconductor Qa, the OUT pin of charging integrated chip U1 connects the source electrode of the first metal-oxide-semiconductor Qa and one end of interrupteur SW 1, the other end of described interrupteur SW 1 connects the input of power transfer module 300, described charging integrated chip U1's pin connects the negative pole of the 2nd LED lamp D2 and the MICRO_GPIO_5 pin of WiFi chip U0, and the positive pole of described the 2nd LED lamp D2 connects the LDO pin of charging integrated chip U1, also by the 5th resistance R 5 ground connection.
Described the 3rd resistance R 3 and the 4th resistance R 4 form bleeder circuit, for detection of the battery electric quantity of lithium battery 500.Detection signal Bat_De is by the 3rd resistance R 3 and the 4th resistance R 4 dividing potential drop gained, and it transfers to the MICRO_GPIO_6 pin of WiFi chip U0.The magnitude of voltage of WiFi chip U0 judgement detection signal Bat_De is during lower than default battery threshold, the battery capacity indication signal LED_P of the MICRO_GPIO_3 pin output high level of WiFi chip U0 controls a LED lamp and lights, represent that electric quantity of lithium battery is lower, prompting user charging.
When described the first socket J1 external power adapter or other USB port, its VBUS pin output DC power supply is given charging integrated chip U1.In the time of need to charging, the BAT pin output charging current of charging integrated chip U1 is to lithium battery 500 chargings, simultaneously its the charging signals CHG_De of pin output low level lights the 2nd LED lamp D2.Described charging signals CHG_De also transfers to the MICRO_GPIO_5 pin of WiFi chip U0, and notice WiFi chip U0 charges.
In charging process, the TS pin of charging integrated chip U1 detects the temperature of lithium battery 500 in real time, and when temperature is greater than preset temperature, the BAT pin of charging integrated chip U1 stops the output of charging current.
When user's Closing Switch SW1, expression need to be used described wireless infrared repeater, opens supply access.When now if the first socket J1 external power adapter or other USB port can provide DC power supply, the BGATE pin output high level of charging integrated chip U1 is controlled the first metal-oxide-semiconductor Qa and is turn-offed, now by externally fed.If the first socket J1 does not have external any equipment, when wireless infrared repeater is without external power supply, the BGATE pin output low level of charging integrated chip U1 is controlled the first metal-oxide-semiconductor Qa and is opened, now by inner lithium battery power supply.Described like this wireless infrared repeater can be placed on Anywhere, not limited by position of source.
When user's cut-off switch SW1, represent not need to use described wireless infrared repeater, disconnect supply access, to reach, the most effectively connect electric effect.
The supply voltage VDD exporting by interrupteur SW 1 need to be converted to by power transfer module 300 the operating voltage VCC of 3.3V.Please refer to Fig. 4, described power transfer module 300 comprises conversion integrated chip U2 and inductance L 1, the described model of changing integrated chip U2 is RT8062, the other end of the VIN pin of described conversion integrated chip U2 (input of power transfer module 300) and EN pin connecting valve SW; The LX pin of conversion integrated chip U2 connects one end of inductance, and the other end of inductance (output of power transfer module 300) connects WiFi control module 100 and infrared transceiver module 400.
The operating voltage VCC that conversion integrated chip U2 is converted to 3.3V by the supply voltage VDD of the 5V of input exports to respective modules power supply, makes wireless infrared repeater work.
Described wireless infrared repeater in the course of the work, is realized reception and the transmitting of infrared signal by described infrared transceiver module 400.Please refer to Fig. 5, described infrared transceiver module 400 comprises receiving element 410, the first transmitter unit 421, the second transmitter unit 422, the 3rd transmitter unit 423, the 4th transmitter unit 424, the 5th transmitter unit 425, the 6th transmitter unit 426 and the 7th transmitter unit 427.Described receiving element 410 is for the infrared signal IR_in of the control command that carries button that receives remote controller and send and be transferred to WiFi chip U0 and carry out corresponding signal processing.Described the first transmitter unit 421 ~ seven transmitter unit 427 is controlled infrared LED lamp on/off according to the infrared control signal IR_CTR of WiFi chip U0 output, to launch corresponding infrared signal.
Described receiving element 410 comprises pull-up resistor Rs and infrared receiving tube U3, the model of infrared receiving tube U3 is TSOP98200, the 1st pin of infrared receiving tube U3 connects the MICRO_GPIO_1 pin of WiFi chip U0, also by pull-up resistor Rs, connects the output of power transfer module 300, the 2nd pin ground connection of infrared receiving tube U3, the 3rd pin of infrared receiving tube U3 connects the output of power transfer module 300.Described infrared receiving tube U3 can receive the infrared carrier data signal (being the infrared signal IR_in of the control command that carries button sent of remote controller) of wide frequency bandwidth (20kHz ~ 60kHz reference carrier wave in), and offers WiFi chip U0 inside and decode.
Described the first transmitter unit 421 comprises the first infrared LED lamp Da, the second triode Q2, the 6th resistance R 6, the 7th resistance R 7 and the first capacitor C 1; Described the second triode Q2 is NPN triode; The base stage of described the second triode Q2 connects the MICRO_GPIO_9 pin of WiFi chip U0 by the 6th resistance R 6, the collector electrode of the second triode Q2 connects the negative pole of the first infrared LED lamp Da, the positive pole of the first infrared LED lamp Da connects one end of the 7th resistance R 7, the other end of the 7th resistance R 7 connects the other end (output of power transfer module 300) of inductance L 1, also by the first capacitor C 1 ground connection, the grounded emitter of described the second triode Q2.
Described the second transmitter unit 422, the 3rd transmitter unit 423, the 4th transmitter unit 424, the 5th transmitter unit 425, the 6th transmitter unit 426, the 7th transmitter unit 427 include respectively two resistance, an electric capacity, an infrared LED lamp and a triode, its particular circuit configurations and connected mode are identical with the first transmitter unit 421, light on and off by the MICRO_GPIO_9 foot control infrared LED lamp processed of WiFi chip U0, its circuit structure is not repeated herein, specifically please refer to Fig. 5.
When the MICRO_GPIO_9 pin of WiFi chip U0 is exported the infrared control signal IR_CTR of high level, all infrared LED lamps are lighted and are launched infrared signal; During the infrared control signal IR_CTR of MICRO_GPIO_9 pin output low level, all infrared LED lamps extinguish, and do not launch infrared signal.
The present embodiment, when carrying out Infrared push button study, can judge the carrier frequency of infrared signal, records carrier frequency; When carrying out infrared forwarding, can carry out according to acquired carrier frequency the transmission of infrared data.As learn two remote controllers that carrier frequency is different, television set be 38kHz, that DVD is 56kHz.When carrying out infrared forwarding, when sending the infrared signal of controlling television set, carrier wave is 38kHz, and while sending the infrared signal of controlling DVD, carrier wave is 56kHz.
In the present embodiment, the first transmitter unit 421 ~ seven transmitter unit 427 forms 7 infrared transmitting tube arrays, it can be arranged on the optional position of wireless infrared repeater, as above wireless infrared repeater, the left side, the right side, above, below or drift angle place, four of tops, the present embodiment is not construed as limiting the number of transmitter unit and setting position thereof, as long as can cover multi-angle, realize multi-angle transmitting, the problem of avoiding certain direction to be blocked causing infrared control to lose efficacy, to improve the success rate to electrical equipment control.
Owing to carrying out the WiFi chip of wireless telecommunications in described wireless infrared repeater, are prior aries, meet 802.11 general standards, all WiFi chips power consumption under same isotype is on the market substantially suitable.Therefore,, when WiFi chip carries out radio-frequency receiving-transmitting, power consumption is larger.For power consumption is significantly reduced, further saves energy, the present embodiment also improves existing WiFi chip, at WiFi chip, the state that a plurality of timers are controlled WiFi chip is set.As shown in Figure 6, the reference axis time (t) represents the operating time axle after wireless infrared repeater powers on.The t1 time period represent be WiFi chip in normal operating conditions (being called T1 state), can receive in real time and launch less radio-frequency message (being infrared signal).The t2 time period represents it is that WiFi chip is in stand-by operation state (being called T2 state), normally received RF message.The t3 time period represent be WiFi chip in resting state (being called T3 state), cannot receive and launch radio frequency message.
Under T1 state, power consumption is maximum.Under T2 state, power consumption is less, only has 30% left and right under T1 state.Under T3 state, power pole is low, because closed the wireless communication function of WiFi chip under this state completely.
The specific works process of above-mentioned three kinds of states and timer is as follows:
1), after wireless infrared repeater powers on, for time 0 point, enter into T1 state (operating state), first timer for setting-up time t1 starts beginning timing, T1 state duration shorter (being t1), first timer regularly finishes, and controls WiFi chip and enters into T2 state, for the second timer startup beginning timing of setting-up time t2.
2), at T2 state (stand-by operation state, second timer timing does not also finish) under, when wireless infrared repeater receives after the radio frequency message information of the infrared data that needs forwarding, turn back at once time 0 point, enter into T1 state, and radio frequency message data is processed, completed the forwarding of infrared data.
3) if under T2 state, there is not the radio frequency message information that receives the infrared data that needs forwarding always, (second timer timing finishes) after elapsed time t2, controls the of short duration T1 state that enters into of WiFi chip, and makes the 3rd timer of setting-up time t0 start beginning timing.Now wireless infrared repeater sends " entering dormancy and standby circulation pattern " message, prompting mobile telephone set by WiFi chip; In time t0, send after message, after the 3rd timer timing finishes, at once enter T3 state, and make the 4th timer of setting-up time t3 start beginning timing.
4), under T3 state, continue the t3 time, after the 4th timer timing finishes, make the 5th timer of setting-up time t4 start timing.Enter after T2 state duration t4, control the 4th timer and start again timing, after duration t3, the 4th timer timing finishes, makes the 5th timer to start timing.So repeatedly.If now mobile phone intends to carry out the operational order of infrared remote control, owing to having preserved in process 3 in mobile phone) in, " entering dormancy and standby circulation pattern " message of wireless infrared repeater transmitting, so, mobile phone is when sending command messages, can continue transmitting several times, guarantee to contain the time cycle of " t3+t4 ".That is to say, guarantee that wireless infrared repeater can receive WiFi message information within the time period of t4, receive after message information, wireless infrared repeater turns back to time 0 point at once, has entered into T1 state.
By description above, if user under non-frequent operation state, will have the more time in the state circulation timei of " t3+t4 ", and under T3 state, power pole is low, and under T2 state, power consumption is not high yet; Select suitable t3 and the duty ratio of time of t4, both can reach good power savings, also can to the WiFi chip of wireless infrared repeater, wake up preferably.
In sum, the wireless infrared repeater that the utility model provides has the following advantages:
1), on hardware, adopt the building form of WiFi chip+peripheral control circuit.By WiFi chip, directly control, WiFi chip should complete the function of existing wireless data processing, again the peripheral circuit increasing is controlled to (comprising charging, battery electric quantity detection, infrared reception and transmitting).With respect to existing scheme, reduced by a MCU, reduced Material Cost.
2), the model that adopts of infrared receiving tube is TSOP98200, the carrier frequency of the infrared remote-controlled signal that it can be learnt is 20kHz ~ 60kHz, almost can contain all remote controllers on the market, has greatly improved infrared learning suitability.
3), built-in lithium battery power supply, the position that wireless infrared repeater is placed is not limited in supply socket annex, just has placing space flexibly.
4), lithium battery is realized to chargeable and charge protection, avoid user to change lithium battery and bring extra-pay, improved charging security.
5, by the operating state of Timer Controlling WiFi chip, save electric energy loss, it is the power supply of sustainable long period that lithium battery is once charged.
6), be provided with a plurality of transmitter units, can cover multi-angle, realize multi-angle transmitting, the problem of avoiding certain direction to be blocked causing infrared control to lose efficacy, to improve the success rate to electrical equipment control.
Be understandable that; for those of ordinary skills; can be equal to replacement or change according to the technical solution of the utility model and utility model design thereof, and all these changes or replacement all should belong to the protection range of the appended claim of the utility model.

Claims (9)

1. a wireless infrared repeater, is connected with outside power supply adaptor, it is characterized in that, described wireless infrared repeater comprises: lithium battery;
For controlling and detect the charged state of lithium battery, the charging control module of selecting lithium battery power supply or power supply adaptor power supply and detecting the electric weight of lithium battery;
For the supply voltage of charging control module output being converted to the power transfer module of operating voltage;
For detection of the electric weight of lithium battery and carry out low electric weight prompting, according to the operational order of user's input, generate the WiFi control module of infrared control signal;
For receiving the infrared signal that carrier frequency that remote controller sends is preset range and carrying out signal processing, and the infrared transceiver module of launching from different directions corresponding infrared signal according to infrared control signal;
Described power transfer module connects WiFi control module, infrared transceiver module and charging control module, and described WiFi control module connects infrared transceiver module, and described charging control module connects lithium battery.
2. wireless infrared repeater according to claim 1, is characterized in that, described WiFi control module comprises WiFi chip, antenna, the first resistance, the second resistance, the first triode and a LED lamp; The ANT pin of described WiFi chip connects antenna, the MICRO_GPIO_3 pin of WiFi chip connects the base stage of the first triode by the first resistance, the collector electrode of described the first triode connects the negative pole of a LED lamp, the positive pole of the one LED lamp connects the output of power transfer module, the grounded emitter of described the first triode by the second resistance.
3. wireless infrared repeater according to claim 2, is characterized in that, the model of described WiFi chip is BM09, and described the first triode is NPN triode.
4. wireless infrared repeater according to claim 2, is characterized in that, described charging control module comprises charging integrated chip, switch, the first socket, the 2nd LED lamp, the 3rd resistance, the 4th resistance, the 5th resistance and the first metal-oxide-semiconductor, the IN pin of described charging integrated chip connects the VBUS pin of the first socket, the TS pin of charging integrated chip connects the 3rd end of lithium battery, the BAT pin of charging integrated chip connects the 1st end of lithium battery, one end of the drain electrode of the first metal-oxide-semiconductor and the 3rd resistance, the other end of described the 3rd resistance connects the MICRO_GPIO_6 pin of WiFi chip, also by the 4th grounding through resistance, the BGATE pin of charging integrated chip connects the grid of the first metal-oxide-semiconductor, the OUT pin of charging integrated chip connects one end of source electrode and the switch of the first metal-oxide-semiconductor, the other end of described switch connects the input of power transfer module, described charging integrated chip pin connects the negative pole of the 2nd LED lamp and the MICRO_GPIO_5 pin of WiFi chip, and the positive pole of described the 2nd LED lamp connects the LDO pin of charging integrated chip, also by the 5th grounding through resistance.
5. wireless infrared repeater according to claim 4, is characterized in that, the model of described charging integrated chip is bq25060, and described switch is manual power switch, and described the first socket is MicroUSB socket, and described the first metal-oxide-semiconductor is PMOS pipe.
6. wireless infrared repeater according to claim 1, it is characterized in that, described power transfer module comprises conversion integrated chip and inductance, and the described model of changing integrated chip is RT8062, and the VIN pin of described conversion integrated chip is connected charging control module with EN pin; The LX pin of conversion integrated chip connects one end of inductance, and the other end of inductance connects WiFi control module and infrared transceiver module.
7. wireless infrared repeater according to claim 2, is characterized in that, described infrared transceiver module comprises:
For receiving the infrared signal that carrier frequency that remote controller sends is preset range and being transferred to the receiving element that WiFi chip carries out corresponding signal processing; Described preset range is 20kHz ~ 60kHz;
For controlling infrared LED lamp on/off according to the infrared control signal of WiFi chip output, to launch the transmitter unit of corresponding infrared signal;
Described receiving element is all connected WiFi chip with transmitter unit.
8. wireless infrared repeater according to claim 7, it is characterized in that, described transmitter unit comprises the first transmitter unit, the second transmitter unit, the 3rd transmitter unit, the 4th transmitter unit, the 5th transmitter unit, the 6th transmitter unit and the 7th transmitter unit;
Described the first transmitter unit comprises the first infrared LED lamp, the second triode, the 6th resistance, the 7th resistance and the first electric capacity; Described the second triode is NPN triode; The base stage of described the second triode connects the MICRO_GPIO_9 pin of WiFi chip by the 6th resistance, the collector electrode of the second triode connects the negative pole of the first infrared LED lamp, the positive pole of the first infrared LED lamp connects one end of the 7th resistance, the other end of the 7th resistance connects power transfer module, also by the first capacity earth, the grounded emitter of described the second triode.
9. wireless infrared repeater according to claim 1, is characterized in that, described lithium battery is that battery capacity is the lithium ion battery of 2100mAh.
CN201420348973.XU 2014-06-27 2014-06-27 A kind of wireless infrared repeater Expired - Fee Related CN203933643U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106128083A (en) * 2016-08-30 2016-11-16 广东美的制冷设备有限公司 The remote control unit of electrical equipment and control method
CN106408923A (en) * 2016-06-22 2017-02-15 南京物联传感技术有限公司 A remote wireless infrared transponding control system based on cloud infrared code base data
CN109754586A (en) * 2018-12-13 2019-05-14 北京汇能精电科技股份有限公司 A kind of unloading setter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106408923A (en) * 2016-06-22 2017-02-15 南京物联传感技术有限公司 A remote wireless infrared transponding control system based on cloud infrared code base data
CN106128083A (en) * 2016-08-30 2016-11-16 广东美的制冷设备有限公司 The remote control unit of electrical equipment and control method
CN109754586A (en) * 2018-12-13 2019-05-14 北京汇能精电科技股份有限公司 A kind of unloading setter
CN109754586B (en) * 2018-12-13 2020-07-07 北京汇能精电科技股份有限公司 Unloading setting device

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