CN2162042Y

CN2162042Y - Remote-control switch

Info

Publication number: CN2162042Y
Application number: CN 93221781
Authority: CN
Inventors: 周庆民; 刘彦兴
Original assignee: Scientific Instrument Factory Applied Physics Inst He'nan Provincial Sciences
Current assignee: Scientific Instrument Factory Applied Physics Inst He'nan Provincial Sciences
Priority date: 1993-08-18
Filing date: 1993-08-18
Publication date: 1994-04-13
Anticipated expiration: 2003-08-18

Abstract

The utility model relates to a sub-ultrasonic two-way remote-control switch, which belongs to the field of wireless remote control, particularly a device utilizing sub-ultrasonic to remotely control switches of electric appliances. After a receiver receives an audio signal, the audio signal is converted into an electric signal with a definite frequency by a piezo-electric acoustic frequency sensor; the frequency of the electric signal which is amplified by an amplification circuit is selected; the number of continuous pulses is identified by a pulse counting distributor; two switches for electric appliances are independently controlled by a double-D trigger. The utility model solves the problem that the existing sub-ultrasonic remote-control switch can not simultaneously control two switches; the utility model is mainly used for the remote control of household appliances or other places which need the operation of remote control.

Description

Remote-control switch

The utility model belongs to the wireless remote control field, particularly relates to a kind of switching device of remote control electrical appliance power supply.

Existing sub-ultrasonic remote-control switch, mains switch that can only remote control No. one electrical equipment, there is certain inconvenience in the switch of independent remote control two-way electrical equipment in the use simultaneously.

The purpose of this utility model is to provide a kind of remote-controlled switchgear that can control two-way electrical equipment simultaneously without interfering with each other.

Its technical scheme is: reflector is made up of air bag 1 and siren 2, receiver is by shell 3, plug 4, jack 5 and receiving circuit are formed, in the receiving circuit by step-down, current limliting, rectifying and wave-filtering, the working power circuit that devices such as voltage stabilizing are formed, for the signal receiving circuit of being made up of acoustic frequency sensor and frequency-selective network provides direct-current working volts, the signal of the certain frequency that receives amplifies through amplifying circuit, and after being shaped as pulse signal, integrating circuit is divided into two-way, one the tunnel is connected to the counting trigger end of pulse count distributor, but the other end is connected to the repeated trigger monostable circuit, the clear terminal of the output termination pulse count distributor of monostable circuit, the discharge end signal is delivered to and door, export the input end of clock that connects double trigger with door, wherein two data inputs of two output termination double triggers of pulse count distributor, two outputs of double trigger are controlled two switching devices respectively.

Because receiving circuit of the present utility model has adopted pulse count distributor and double trigger, therefore, can control the two-way appliance mains switch without interfering with each other according to the number of the continuous impulse that receives.

Further specify the utility model below in conjunction with accompanying drawing and by embodiment.

Fig. 1 is the structural representation of reflector;

Fig. 2 is the profile Facad structure schematic diagram of receiver;

Fig. 3 is the profile side structure schematic diagram of receiver;

Fig. 4 is embodiment 1 a receiving circuit schematic diagram;

Fig. 5 is the receiving circuit schematic diagram of embodiment 2.

Embodiment 1: as shown in Figure 1, reflector is made up of air bag 1 and siren 2, and when hand pinching rubber pneumatic bag, the air communication of certain pressure is crossed the air bag oral area and entered the flute body, the acceleration shock siren edge of a knife produces cavity resonance again, launches the inferior ultrasonic wave of 16-20KHZ from the wedge shape mouth.

Receiving circuit as shown in Figure 4.A, B two termination 220V, 50HZ civil power are through C ₁, R ₁After the step-down current-limiting circuit of forming, through bridge rectifier rectification, capacitor C ₂Filtering, R ₁₃Current limliting, C ₁₀Filtering, voltage stabilizing didoe DW voltage stabilizing is for circuit provides direct-current working volts.JS is the piezoelectric type acoustic frequency sensor, and it receives the voice signal that reflector sends, and converts the corresponding signal of telecommunication to, triode BG ₁And R ₂, L, C ₃Form frequency selective amplifier, above-said current signal is carried out frequency-selecting amplify, through C ₄Be coupled to triode BG ₂After the amplification, deliver to R ₄, C ₅The integrating circuit of forming is shaped as positive pulse signal with the signal of telecommunication of the certain frequency after the frequency-selecting.This pulse signal one tunnel is through BG ₃Deliver to pulse count distributor CD4017 after anti-phase and count, another road is delivered to by BG ₄, C ₆, R ₆But reach the repeated trigger monostable circuit that 555 timers are formed, make its output pin 3 and pin 7 become high level, the high level of pin 3 outputs makes the CD4017 zero clearing to CD4017 zero clearing pin 15, guarantees that it counts from zero.Describe the process of independent control two-way appliance switch below in detail:

(1) when a pulse, 7 pin of 555 timers output footpath C ₇, R ₁₀, R ₁₁, triode BG ₅Behind the circuit of forming, produce a positive pulse in its trailing edge, this positive pulse is sent into and door CD4081, to produce the CP pulse of double D trigger CD4013, sends into counter because of having only a pulse, so the Q of CD4017 ₁End is that pin 2 is high level, and all the other are low level, diode D ₃, D ₄Be output as high level, D ₅, D ₆Be output as low level, therefore with door G ₁Open G ₂Close, so the CP of pin 3 ₁Clock pulse is effective, because of CD4013D ₁End is for high level, so Q ₁Also be high level, through triode BG ₈Drive relay J ₁Adhesive, switch J ₁Connect relay J ₂Keep ortho states.

(2) when two continuous impulses, the Q of pulse count distributor ₂End is that pin 4 is high level, and all the other are low level, D ₃, D ₄Be output as high level, D ₅, D ₆Be low level, therefore with door G ₁Open G ₂Close clock CP ₁Effectively, because of the D of CD4013 ₁Pin is that pin 5 is low level, so Q ₁Be that pin 1 is output as low level, BG ₈End relay J ₁Discharge switch J ₁Disconnect.Relay J ₂Keep ortho states.

(3) when three continuous impulses, the Q of pulse count distributor CD4017 ₃Pin is that pin 7 is high level, and all the other are low level, diode D ₃, D ₄Output low level, NAND gate G ₁Close D ₅, D ₆The output high level, NAND gate G ₂Open clock CP ₂Effectively, because of the D of CD4013 ₂End is that pin 9 is high level, so Q ₂End is pin 13 output high level, through triode BG ₇Drive relay J ₂Adhesive, switch J ₂Connect.J ₁Keep ortho states.

(4) as four continuously towards the time, same principle is because of the data terminal D of double D trigger ₂Be that pin 9 is low level, through clock CP ₂After the triggering, the Q of CD4013 ₂Be pin 13 output low levels, triode BG ₇End relay J ₂Discharge switch J ₂Disconnect J ₁Keep ortho states.

By last analysis as can be known, the contact of double switch is not disturbed mutually, independent execution.

Embodiment 2: as shown in Figure 5, and by controllable silicon BCR ₁And BCR ₂Replace relay J respectively ₁And J ₂, bridge full-wave rectifier changes D into ₁, D ₂Halfwave rectifier, remaining circuit are all constant, and the course of work of circuit and on-off principle are with embodiment 1.

During use, plug 4 is inserted in the supply socket, the appliances power source plug that needs remote control is inserted in the receptor hole 5 gets final product.

Claims

1, a kind of remote control switch with reflector and receiver, reflector is made up of air bag (1) and siren (2), receiver is by shell (3), plug (4), jack (5) and receiving circuit are formed, in the receiving circuit by step-down, current limliting, rectifying and wave-filtering, the working power circuit that devices such as voltage stabilizing are formed, for the signal receiving circuit of being made up of acoustic frequency sensor and frequency-selective network provides direct-current working volts, the signal that receives amplifies through amplifying circuit, the driving switch circuit, of the present utility model being characterised in that: the signal after the amplification is divided into two-way after integrating circuit is shaped as pulse signal, one the tunnel is connected to the counting trigger end of pulse count distributor, but another road is connected to the repeated trigger monostable circuit, the clear terminal of its output termination pulse count distributor, the discharge end signal is delivered to and door, exports the input end of clock that connects double trigger with door, wherein two data inputs of two output termination double triggers of pulse count distributor, two outputs of double trigger are controlled two switching devices respectively.

2, remote control switch as claimed in claim 1 is characterized in that: by resistance R ₄And capacitor C ₅The integrating circuit of forming receives the signal after amplifying and is shaped as pulse signal, delivers to by triode BG ₄, capacitor C ₈, resistance R ₆But with the repeated trigger monostable circuit that 555 timers are formed, the output 3 of monostable circuit provides quenching pulse for the zero clearing pin 15 of pulse count distributor CD4017, and discharge end 7 is through capacitor C ₇With triode BG ₅Connect input 2,5 two and door CD4081, two outputs 3,4 with door meet the input end of clock 3,11 of double D trigger CD4013, the two output Q of CD4017 respectively ₁, Q ₃Meet the data input pin D of double D trigger CD4013 respectively ₁, D ₂, the output Q of double D trigger CD4013 ₁, Q ₂Respectively through driving triode BG ₆, BG ₇Control two switching devices.

3, remote control switch as claimed in claim 1 or 2 is characterized in that: switching device is relay or controllable silicon.

4, remote control switch as claimed in claim 1 or 2 is characterized in that: jack (5) is two-phase or three-phase jack.

5, remote control switch as claimed in claim 3 is characterized in that: jack (5) is two-phase or three-phase jack.