CN202495147U - Wireless remote control device with low-voltage alarm circuit - Google Patents

Wireless remote control device with low-voltage alarm circuit Download PDF

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Publication number
CN202495147U
CN202495147U CN2012200903762U CN201220090376U CN202495147U CN 202495147 U CN202495147 U CN 202495147U CN 2012200903762 U CN2012200903762 U CN 2012200903762U CN 201220090376 U CN201220090376 U CN 201220090376U CN 202495147 U CN202495147 U CN 202495147U
Authority
CN
China
Prior art keywords
power supply
pin
connects
anode
remote control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2012200903762U
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Chinese (zh)
Inventor
周文真
高志辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan University of Science and Technology
Hunan University of Science and Engineering
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Hunan University of Science and Engineering
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Application filed by Hunan University of Science and Engineering filed Critical Hunan University of Science and Engineering
Priority to CN2012200903762U priority Critical patent/CN202495147U/en
Application granted granted Critical
Publication of CN202495147U publication Critical patent/CN202495147U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a wireless remote control device with a low-voltage alarm circuit, solving the technical problem that the remote control device cannot be manipulated (remotely controlled) conveniently owing to precognition of under voltage and low voltage of a battery in the conventional remote control device. The technical scheme is as follows: the wireless remote control device comprises a remote control device power supply 4, a low-voltage sampling circuit 5, a low-voltage coding circuit 6, a key switch 7, a key inductor 8, a coding modulator IC3, a power amplification circuit 2 and an emitting antenna 1 which are all connected in sequence. When the voltage of the remote control device power supply is lower than a preset voltage value, two non-neighbor light touch switches in the key switch are switched on simultaneously, and the power supply is switched on at the moment when the light touch switches are switched on, so that the remote control device works and sends a coded value which is different from that caused by singly pressing down one light touch switch; and after receiving a low-voltage alarm signal, a remote control device reception host alarms and prompts a user with information that the remote control device is low in power supply voltage and a new battery is necessary to replace, therefore the inconvenience caused by battery under-voltage in life is solved.

Description

A kind of wireless remote controller that has the low pressure alarming circuit
Technical field
Electronic information technology, wireless remote control control, low pressure detect.
Background technology
Existing telepilot is divided into IR remote controller, RF remote (industrial telepilot); Adopt button cell or dry cell power supply like household electrical appliance remote controller, burglar alarm telepilot etc.; And the limited service life of button cell and dry cell, in case the telepilot cell voltage cross low telepilot can't operate as normal, causing can not remote control control; When urgent, can't control and cause serious inconvenience; So also there is certain defective in existing remote control scheme, the telepilot on the market does not increase the low pressure measuring ability, does not have economic solution yet.
Summary of the invention
To the deficiency that prior art exists, the purpose of the utility model provides a kind of with low cost, and working stability can effectively solve telepilot because of the low excessively situation that causes telepilot normally to use of cell voltage, plays the effect of providing for a rainy day.
The utility model when the remote controller battery brownout, just can send low-voltage signal when being lower than certain value automatically, gives receiver.After receiver receives low-voltage signal, make handled, thereby reach with foresight, well solved the inconvenience that causes because of the battery reason in the life.
The utility model comprises that telechiric device power supply 4, low pressure sample circuit 5, low pressure coding circuit 6, keyswitch 7, button indication 8, coded modulation IC 3, power amplification circuit 2, emitting antenna 1 connect successively; Low pressure sample circuit 5 is by telechiric device power supply 4 anodal inverting inputs through concatenation operation amplifier U2 after resistance R 1, the R5 dividing potential drop, and in-phase input end connects the positive pole of telechiric device power supply 4, constitutes same phase comparator; Low pressure coding circuit 6 by triode Q1 emitter connect positive source, collector connect altogether anode duodiode D1 altogether anode pin, base stage through resistance R 2 after, connects low pressure sample circuit 5 comparator output terminals, be total in two negative electrode pins connections of anode duodiode keyswitch 7 two non-conterminous touch-switch K0, K2; Keyswitch 7 is made up of 4 touch-switch K0, K1, K2, K3, and touch-switch one end connects positive source, and the other end connects coded modulation IC 3 coding pins behind current-limiting resistance; Power amplification circuit 2 connects inductance by dielectric capacitance one end, and the other end connects pliotron Q2 collector, and pliotron Q2 emitter connects antenna, base stage connects coded modulation IC 3 modulation output pins behind current-limiting resistance; Telechiric device power supply 4 anodal resistance R 1 one ends, operational amplifier positive source, touch-switch one end, the negative pole CC power supply ground of connecting; Resistance R 1 other end is connected with resistance R 5, operational amplifier inverting input, and resistance R 5 other ends connect power supply ground; The operational amplifier normal phase input end connects positive source; Connect triode Q1 base stage behind the operational amplifier output pin resistance in series R2; Triode Q1 emitter connects telechiric device power supply 4 positive poles; Triode Q1 collector connects the common anode pin of common anode duodiode D1, and two negative electrode pins of anode duodiode D1 connect two non-conterminous touch-switch other ends in the keyswitch 7 altogether; Touch-switch K0, K1, K2, K3 one end connect the positive pole of telechiric device power supply 4; The anode pin of the end of the negative electrode pin of the common anode duodiode of other end connection and current-limiting resistance R3, R6, R4, R7 and diode D2, D3, D4, D5, the other end of current-limiting resistance R3, R6, R4, R7 connects pin 5, pin 6, pin 7, the pin 8 of coded modulation IC 3.It is characterized in that: said low pressure coding circuit 6 is made up of positive-negative-positive triode Q1 and common anode duodiode D1 and keyswitch 7.
After telechiric device power supply 4 voltages are lower than the predeterminated voltage value; Low level of low pressure sample circuit 5 output makes triode Q1 conducting to triode Q1 base stage; Supply voltage is through triode Q1 with after being total to anode duodiode D1; Directly give two non-conterminous touch-switch K0, the power supply of K2 pin in the keyswitch 7, make 5 pin, 6 pin of coded modulation IC 3 obtain a high level simultaneously, telechiric device sends the keyboard-coding signal of pressing two touch-switchs simultaneously; Telechiric device receives main frame and when producing, learns non-conterminous two encoded radios that touch-switch is pressed simultaneously, as power supply low pressure alarming signal.
When telechiric device power supply 4 voltages more than or equal to the predeterminated voltage value, low pressure sample circuit 5 output high level, triode Q1 and not conducting of anode duodiode D1 altogether, except that low pressure sample circuit 5, other circuit are not worked.
The utility model is at beneficial effect: under the prerequisite that does not influence original circuit stability, efficiently solve because of cell voltage is low excessively, and cause can't control the serious consequence that causes.
Description of drawings
Fig. 1 is the utility model system chart;
The schematic diagram that Fig. 2 is provided for the utility model first embodiment;
Label declaration: 1 is emitting antenna, and 2 is power amplification circuit, and 3 is coded modulation IC, and 4 is the telechiric device power supply, and 5 is the low pressure sample circuit, and 6 is the low pressure coding circuit, and 7 is keyswitch, and 8 are the button indication.
Embodiment
Referring to accompanying drawing 1 ~ 2, the utility model comprises that telechiric device power supply 4, low pressure sample circuit 5, low pressure coding circuit 6, keyswitch 7, button indication 8, coded modulation IC 3, power amplification circuit 2, emitting antenna 1 connect successively;
Low pressure sample circuit 5 is by telechiric device power supply 4 anodal inverting inputs through concatenation operation amplifier U2 after resistance R 1, the R5 dividing potential drop, and in-phase input end connects the positive pole of telechiric device power supply 4, constitutes same phase comparator;
Low pressure coding circuit 6 by triode Q1 emitter connect positive source, collector connect altogether anode duodiode D1 altogether anode pin, base stage through resistance R 2 after, connects low pressure sample circuit 5 comparator output terminals, be total in two negative electrode pins connections of anode duodiode keyswitch 7 two non-conterminous touch-switch K0, K2; Keyswitch 7 is made up of 4 touch-switch K0, K1, K2, K3, and touch-switch one end connects positive source, and the other end connects coded modulation IC 3 coding pins behind current-limiting resistance; Power amplification circuit 2 connects inductance by dielectric capacitance one end, and the other end connects pliotron Q2 collector, and pliotron Q2 emitter connects antenna, base stage connects coded modulation IC 3 modulation output pins 4 pin behind current-limiting resistance;
Telechiric device power supply 4 anodal resistance R 1 one ends, operational amplifier positive source, touch-switch one end, the negative pole CC power supply ground of connecting; Resistance R 1 other end is connected with resistance R 5, operational amplifier inverting input, and resistance R 5 other ends connect power supply ground; The operational amplifier normal phase input end connects positive source; Connect triode Q1 base stage behind the operational amplifier output pin resistance in series R2; Triode Q1 emitter connects telechiric device power supply 4 positive poles; Triode Q1 collector connects the common anode pin of common anode duodiode D1, and two negative electrode pins of anode duodiode D1 connect two non-conterminous touch-switch other ends in the keyswitch 7 altogether; Touch-switch K0, K1, K2, K3 one end connect the positive pole of telechiric device power supply 4; The anode pin of the end of the negative electrode pin of the common anode duodiode of other end connection and current-limiting resistance R3, R6, R4, R7 and diode D2, D3, D4, D5, the other end of current-limiting resistance R3, R6, R4, R7 connects pin 5, pin 6, pin 7, the pin 8 of coded modulation IC 3.Said low pressure coding circuit 6 is made up of positive-negative-positive triode Q1 and common anode duodiode D1 and keyswitch 7.
After telechiric device power supply 4 voltages are lower than the predeterminated voltage value; Low level of low pressure sample circuit 5 output makes triode Q1 conducting to triode Q1 base stage; Supply voltage is through triode Q1 with after being total to anode duodiode D1; Directly give two non-conterminous touch-switch K0, the power supply of K2 pin in the keyswitch 7, make 5 pin, 6 pin of coded modulation IC 3 obtain a high level simultaneously, telechiric device sends the keyboard-coding signal of pressing two touch-switchs simultaneously; Telechiric device receives main frame and when producing, learns non-conterminous two encoded radios that touch-switch is pressed simultaneously, as power supply low pressure alarming signal.
When telechiric device power supply 4 voltages more than or equal to the predeterminated voltage value, low pressure sample circuit 5 output high level, triode Q1 and not conducting of anode duodiode D1 altogether, except that low pressure sample circuit 5, other circuit are not worked.
In the present embodiment, pliotron Q2 adopts NPN type triode 8050.
In the present embodiment, coded modulation IC 3 adopts EV1527.
In the present embodiment, telechiric device power supply 4 adopts button cell CR2032.
In the present embodiment, the rubescent paster LED of common white is adopted in button indication 8.
In the present embodiment, operational amplifier U2 adopts paster list amplifier IC LM321.
In the present embodiment, triode Q1 adopts paster positive-negative-positive triode 8550.
In the present embodiment, keyswitch 7 adopts the paster touch-switch.
In the present embodiment, anode duodiode D1 adopts paster anode duodiode BAT54A altogether altogether.

Claims (3)

1. a wireless remote controller that has the low pressure alarming circuit comprises that telechiric device power supply (4), low pressure sample circuit (5), low pressure coding circuit (6), keyswitch (7), button indication (8), coded modulation IC (3), power amplification circuit (2), emitting antenna (1) connect successively; Low pressure sample circuit (5) is by the anodal inverting input through concatenation operation amplifier U2 after resistance R 1, the R5 dividing potential drop of telechiric device power supply (4), and in-phase input end connects the positive pole of telechiric device power supply (4), constitutes same phase comparator; Low pressure coding circuit (6) by triode Q1 emitter connect positive source, collector connect altogether anode duodiode D1 altogether anode pin, base stage through resistance R 2 after, connects low pressure sample circuit (5) comparator output terminal, be total in two negative electrode pins connection keyswitches of anode duodiode (7) two non-conterminous touch-switch K0, K2; Keyswitch (7) is made up of 4 touch-switch K0, K1, K2, K3, and touch-switch one end connects positive source, and the other end connects coded modulation IC (3) coding pin behind current-limiting resistance;
Power amplification circuit (2) connects inductance by dielectric capacitance one end, and the other end connects pliotron Q2 collector, and pliotron Q2 emitter connects antenna, base stage connects coded modulation IC (3) modulation output pin 4 pin behind current-limiting resistance; Anodal resistance R 1 one ends, operational amplifier positive source, touch-switch one end, the negative pole CC power supply ground of connecting of telechiric device power supply (4); Resistance R 1 other end is connected with resistance R 5, operational amplifier inverting input, and resistance R 5 other ends connect power supply ground; The operational amplifier normal phase input end connects positive source; Connect triode Q1 base stage behind the operational amplifier output pin resistance in series R2; Triode Q1 emitter connects telechiric device power supply (4) positive pole; Triode Q1 collector connects the common anode pin of common anode duodiode D1, and two negative electrode pins of anode duodiode D1 connect two non-conterminous touch-switch other ends in the keyswitch (7) altogether; Touch-switch K0, K1, K2, K3 one end connect the positive pole of telechiric device power supply (4); The anode pin of the end of the negative electrode pin of the common anode duodiode of other end connection and current-limiting resistance R3, R6, R4, R7 and diode D2, D3, D4, D5, the other end of current-limiting resistance R3, R6, R4, R7 connects pin 5, pin 6, pin 7, the pin 8 of coded modulation IC (3); It is characterized in that: said low pressure coding circuit (6) is made up of positive-negative-positive triode Q1 and common anode duodiode D1 and keyswitch (7).
2. a kind of according to claim 1 wireless remote controller that has the low pressure alarming circuit is characterized in that: what two negative electrode pins of said anode duodiode D1 altogether connected is two non-conterminous touch-switchs in the keyswitch (7).
3. a kind of according to claim 1 wireless remote controller that has the low pressure alarming circuit is characterized in that: the anode pin of said anode duodiode D1 altogether connects the collector of triode Q1.
CN2012200903762U 2012-03-13 2012-03-13 Wireless remote control device with low-voltage alarm circuit Expired - Fee Related CN202495147U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200903762U CN202495147U (en) 2012-03-13 2012-03-13 Wireless remote control device with low-voltage alarm circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012200903762U CN202495147U (en) 2012-03-13 2012-03-13 Wireless remote control device with low-voltage alarm circuit

Publications (1)

Publication Number Publication Date
CN202495147U true CN202495147U (en) 2012-10-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012200903762U Expired - Fee Related CN202495147U (en) 2012-03-13 2012-03-13 Wireless remote control device with low-voltage alarm circuit

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106454639A (en) * 2016-08-02 2017-02-22 北海明杰科技有限公司 Low-voltage frequency modulation circuit for wireless earphone
CN106454640A (en) * 2016-08-02 2017-02-22 北海明杰科技有限公司 Low-voltage frequency modulation circuit used for auxiliary teaching

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106454639A (en) * 2016-08-02 2017-02-22 北海明杰科技有限公司 Low-voltage frequency modulation circuit for wireless earphone
CN106454640A (en) * 2016-08-02 2017-02-22 北海明杰科技有限公司 Low-voltage frequency modulation circuit used for auxiliary teaching

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121017

Termination date: 20130313