CN2313342Y

CN2313342Y - Television receiving controller

Info

Publication number: CN2313342Y
Application number: CN97240633U
Authority: CN
Inventors: 黄占伟
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-08-28
Filing date: 1997-08-28
Publication date: 1999-04-07
Anticipated expiration: 2007-08-28

Abstract

The utility model discloses a television receiving controller, and solves the contradiction problem that children learn and watch television. The television receiving controller is composed of a plastic television shell and control device circuits. The plastic television shell is divided into two chambers, one chamber is a coin feeding chamber, and a coin feeding switch and coins which can be fed are arranged in the chamber. The other chamber is a circuit chamber, and all the control device circuits are arranged in the chamber. When the coins are not fed into the television receiving controller, the power supply of a television cut off. After the coins are fed into the television receiving controller, the coin feeding switches generate coin feeding pulses, and the television is turned on to be in a receiving state. Meanwhile, the minus counting end of the plus and minus counting circuit is started to carry out minus counting. When a coin number decoding circuit tests that the plus and minus count circuit is 0, a power supply switch circuit controlling the television turn off the power supply of the television. Thereby, the utility model accomplishes that the receiving time of the television is controlled by controlling the on-off of the power supply of the television.

Description

A kind of television program receiving controller

The utility model belongs to signal control device, a kind of specifically television program receiving controller.

Along with people's material and improving constantly of cultural life, multichannel, jumbo various TVs are flooded with people's life red-letter day, this is favourable for the spare-time cultural life that enriches people, but for students in middle and primary schools, especially lower student but is a kind of temptation that can't stop, how to solve child study and the contradiction of seeing TV, this is that many heads of a family wish the problem that solves at present.

The purpose of this utility model is exactly will solve child's study and see this problem of contradiction of TV, and a kind of controller that can set television set rating time length is provided.

A kind of television program receiving controller is made up of cabinet and control device circuit, is divided into two chambers in the cabinet, and a chamber is the chamber of inserting coins, the indoor coin that Coin feeding switch is housed and can throws, and another chamber is the circuit chamber, indoor all control device circuit of adorning; The control device circuit part comprises that controller power circuit, Coin feeding switch, waveform remove to tremble shaping circuit, drive circuit, TV power supply switching circuit, oscillating circuit, frequency of oscillation initialization circuit, frequency dividing circuit, pulse shaper, audio oscillator circuit and buzzer, is characterized in that:

The control device circuit part also comprises plus-minus counting circuit, coin number decoder circuit, shuts down sound advance notice decoding circuit; All circuit of controller power circuit and other link to each other, and guarantee the power supply of each several part circuit; The Coin feeding switch waveform removes to tremble shaping circuit, and plus-minus counting circuit, coin number decoder circuit, drive circuit, TV power supply switching circuit link to each other successively; Frequency of oscillation initialization circuit, oscillating circuit, frequency dividing circuit, pulse shaper, plus-minus counting circuit link to each other successively; Shutdown sound advance notice decoding circuit, audio oscillator circuit, buzzer link to each other successively; Coin number decoder circuit links to each other with frequency dividing circuit; Shutting down sound advance notice circuit links to each other with plus-minus counting circuit.

Owing in the utility model control circuit is housed, when not inserting coins, TV set power disconnects; After inserting coins, Coin feeding switch produces the pulse of inserting coins, and adds up through plus-minus counting circuit, and after decoding circuit detected non-0 state, signal was sent into drive circuit, promotes the TV power supply switching circuit by drive circuit and connects TV power supply, enters start rating state; This signal also starts the pulse of frequency dividing circuit generation long delay simultaneously, the subtraction counting end of sending into plus-minus counting circuit carries out the subtraction counting, when coin number decoder electric circuit inspection when plus-minus counting circuit is 0, feed signals is given drive circuit, control TV power supply switching circuit also falls TV set power, thereby has realized adopting the mode of controlling the TV set power break-make to control the time of the rating of television set.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is that the A--A ＇ of Fig. 1 cuts open and shows schematic diagram;

Fig. 3 is the block diagram of the utility model control device circuit;

Fig. 4 is the circuit diagram of the utility model control device circuit.

Describe in detail below in conjunction with accompanying drawing.

As shown in Figure 1 and Figure 2, the 1st, the chamber of inserting coins, the 2nd, coin-freed mechanism, the 3rd, the loam cake lock hole, the 4th of going to the bottom, coin slot, the 5th, circuit chamber, the 6th, circuit board, the 7th, the socket of TV set power plug, the 8th, student's television program receiving controller power source line, the 9th, TV set power plug, the 10th, plastic housing go to the bottom, the 11st, the plastic housing loam cake.

As shown in Figure 3; the control device circuit part removes to tremble shaping circuit, plus-minus counting circuit, coin number decoder circuit, drive circuit, TV power supply switching circuit, oscillating circuit, frequency of oscillation initialization circuit, frequency dividing circuit, pulse shaper, shutdown sound advance notice decoding circuit, audio oscillator circuit and buzzer by controller power circuit, Coin feeding switch, waveform to be formed, and the annexation between them as mentioned above.

As shown in Figure 4, input 220V electric main is respectively to relay normally open contact J11, the socket P1 of controller power circuit and TV power supply switching circuit power supply; Controller power circuit is by Industrial Frequency Transformer B1, and diode D1～D4, capacitor C 1, resistance R 1, voltage-stabiliser tube Z1 form.Anodal and the negative level of diode D3 of B1 level of transformer one terminating diode D1, anodal and the negative level of diode D4 of another terminating diode of B1 level of transformer D2, the negative pole of diode D1, D2 connects capacitor C 1 positive pole and resistance R 1, diode D3, D4 positive pole connect capacitor C 1 negative pole, voltage-stabiliser tube Z1 positive pole, voltage-stabiliser tube Z1 negative pole connecting resistance R1 one end.Transformer B1 reduces to low-voltage alternating-current with 220VAC input, and the rectifier bridge rectification of being made up of diode D1～D4 is through capacitor C 1 filtering, produce shakiness and force down the output of straightening stream, form the voltage stabilizing circuit voltage stabilizing through resistance R 1, voltage-stabiliser tube Z1, become the controller stabilized voltage power supply, to all other circuit supplies.

Coin feeding switch and waveform remove to tremble shaping circuit by sensitive switch K3, resistance R 19～R21, and diode D23, capacitor C 6 and two input nand gate IC3A (CD4011) form.K switch 3 is connected with resistance R 19, R20, K switch 3 another termination power VC, resistance R 20 other end ground connection, 1 pin of NAND gate IC3A, 2 pin connecting resistance R21, capacitor C 6, diode D23 negative pole, capacitor C 6 another termination power VC, resistance R 21 other end ground connection.Coin feeding switch K3 produces through inserting coins and has the pulse of inserting coins of shaking interference noise, form the integration de-twitter circuit by capacitor C 6, resistance R 21, after the band that diode D23 is sent into disturbs the pulse of inserting coins of shake clutter to go to tremble, through NAND gate IC3A shaping, export the impulse waveform of inserting coins of a standard at last by 3 pin of NAND gate IC3A again.

Plus-minus counting circuit is made up of integrated circuit (IC) 1 (CD40193), resistance R 12 and R2, capacitor C 4, C2.Capacitor C 4 positive poles connect power supply VC, minus earth; 16 pin of IC1 meet power supply VC, 14 pin connect capacitor C 2,

resistance R

2,11 pin connecting resistance R12,8 pin ground connection, 5 pin connect 3 pin of NAND gate IC3A, 4 pin connecting resistance R17, diode D21, D22 positive pole, resistance R 12 another termination power VC, capacitor C 2 another termination power VC, resistance R 2 other end ground connection, IC1 is the forward-backward counter integrated circuit, and capacitor C 4 is power supply coupling capacitors, resistance R 12 make put several ends can not (even counter works can not put several states).Capacitor C 2, resistance R 2 are circuit that integrated circuit (IC) 1 is resetted when powering on, and 5 pin of IC1 are addition inputs, and plus coujnt is carried out in the pulse of input, and 4 pin are subtraction counting ends, and the subtraction counting is carried out in the pulse of input.By the peripheral circuit connection of integrated circuit (IC) 1 as can be known, the function of forward-backward counter is carried out plus coujnt to the number of inserting coins exactly, and long delay shaped pulse (4 pin of input ic IC1) is carried out the subtraction counting.

Coin number decoder circuit is made up of diode D6, D8, D9, D11 and

resistance R

13, and 2 pin of integrated circuit (IC) 1 connect the positive pole of diode D6, and 3 pin connect the positive pole of diode D8, and 6 pin connect the positive pole of diode D9, and 7 pin connect the positive pole of diode D11; The negative pole connecting resistance R13 of diode D6, D8, D9, D11.The function of coin number decoder circuit is exactly to detect 0 number state of plus-minus counting circuit, when the forward-backward counter counting is 0, and resistance R 13 output low levels; Non-0 o'clock, resistance R 3 output high level.Coin number decoder circuit will detect the signal of 0 number and give drive circuit and frequency dividing circuit respectively.

Drive circuit is made up of operational amplifier IC4A (LM324), resistance R 3, R4, R5.2 pin connecting resistance R3, the R4 of operational amplifier IC4A, 3 pin meet the output resistance R13 of coin number decoder circuit, 1 pin connecting resistance R5, resistance R 3 another termination power VC, resistance R 4 other end ground connection.Resistance R 5 output drive signals, drive circuit is accepted the detection signal level of coin number decoder circuit, and the level that this level and resistance R 3, R4 are set compares, by operational amplifier IC4A output drive signal.

The TV power supply switching circuit is made up of triode Q1, diode D5, relay J 1 and TV power supply socket P1.Three plate pipe base stages connect drive signal resistance R 5, grounded emitter, and collector connecting relay J1, diode D5 positive pole, the relay coil other end and diode D5 negative pole meet power supply VC.Alternating current 220V AC input meets TV power supply socket P1 through the normally opened contact J11 of relay J 1, and when drive circuit was output as low level, triode Q1 ended, and relay J 1 is failure to actuate, and contact J11 often opens, and TV power supply socket P1 does not have civil power to insert; When drive circuit is output as high level, triode Q1 conducting, relay J 1 obtains electric adhesive, normally opened contact J11 closure, to TV power supply socket P1 power supply, television set can obtain electric rating to civil power through relay contact J11.

Oscillating circuit is made up of operational amplifier IC4B, resistance R 6, R9, R10, R11, capacitor C 3.5 pin connecting resistance R9～R11 of operational amplifier IC4B, 13 pin of 6 pin connecting resistance R6,

capacitor C

3,7 pin connecting resistance R6, R11, NAND gate IC3C, resistance R 9 another termination power VC, the other end ground connection of resistance R 10, capacitor C 3.Operational amplifier IC4B and peripheral cell, resistance R 9, R10, R11, R6, capacitor C 3 are formed the RC oscillating circuit, and frequency of oscillation is by the value decision of resistance R 6, capacitor C 3, and the square-wave waveform of output is delivered to 13 pin of NAND gate IC3C.

The frequency of oscillation initialization circuit is made up of resistance R 7, R8, K switch 1, K2, and resistance R 7 link to each other with K switch 1 back and resistance R 5 and connecing, resistance R 8 link to each other the back with resistance R 6 and connect with K switch 2, in K1 closure, K2 disconnection; The K2 closure, K1 disconnects; K1, K2 complete closure; In the complete four kinds of combinations that disconnect of K1, K2, by the resistance of resistance R 6 two ends equivalences four kinds of values are arranged, corresponding four time constants promptly have four kinds of vibration output frequencies, therefore can set the pulse square wave output of four kinds of different frequencies.

Frequency dividing circuit is made up of integrated circuit (IC) 2 (CD40393) and NAND gate IC3C.14 pin of integrated circuit (IC) 2 meet power supply VC, 13 pin, 2 pin connect diode D24 positive pole, 1 pin connects the input square wave of NAND gate IC3C11 pin, the long delay pulse of 8 pin after with frequency division outputs to 8,9 pin of the NAND gate IC3B of pulse shaper, input 12 pin of NAND gate IC3C connect the output of coin number decoder circuit, when coin number decoder circuit output high level, allow the vibration square wave to enter frequency divider, produce the long delay pulse; When output low level, the square wave of forbidding vibrating enters frequency divider, stops to produce the long delay pulse.Frequency divider is imported the vibration square wave exactly, produces long delay pulse output behind the frequency division.

Pulse shaper is made up of NAND gate IC3B operational amplifier IC4D, resistance R 18, R17, capacitor C 5, diode D21, D22.8 pin of NAND gate IC3B, 9 pin connect the positive pole of frequency division output and diode D22,10 pin connecting resistance R18,13 pin of operational amplifier IC4D connect the reference voltage of 2 pin of IC4A, 12 pin connect capacitor C 5, resistance R 18,14 pin connect the positive pole of diode D21, and resistance R 17 connects the negative pole of diode D21, D22 and 4 pin of integrated circuit (IC) 1.Pulse shaper is shaped as burst pulse to the long delay broad pulse of frequency divider output through the time-lag action of R18, C5, and output long delay burst pulse is carried out the subtraction counting.

Shut down sound advance notice decoding circuit, form by triode Q3, Q2, diode D7, D10, D12～D20, resistance R 14, R15, R16.The positive pole of diode D7, D10, D12 connects 2 pin, 6 pin, 7 pin of integrated circuit (IC) 1 successively, negative pole connecting resistance R14, the R15 of diode D7, D10, D12, the negative pole of diode D14～D20 connects 4 pin, 5 pin, 6 pin, 8 pin, 9 pin, 10 pin, 11 pin of integrated circuit (IC) 2 successively, the positive pole of diode D13～D20 connects the base stage of triode Q2, the grounded emitter of triode Q3, base stage connecting resistance R15, collector electrode connecting resistance R16 and diode D13 positive pole, resistance R 16 another termination power VC.Shut down sound advance notice decoding circuit and detect 1 number state of forward-backward counter and complete 1 state of frequency divider 4 pin～11 pin, be kept to 0 with previous cycle of oscillation, send the signal that starts audible alarm at forward-backward counter.

Audio oscillator circuit and buzzer are made up of operational amplifier IC4C, triode Q2, resistance R 22～R26, capacitor C 7, buzzer S1.The 8 pin connecting resistance R22 of operational amplifier IC4C, R24, R26,9 pin connect emitter, capacitor C 7, the resistance R 22 of triode Q2,10 pin connecting resistance R23～R25, the grounded collector of triode Q2, capacitor C 7, resistance R 25 ground connection, resistance R 26 meets buzzer S1, buzzer S1 other end ground connection, resistance R 23 another termination power VC.Operational amplifier IC4C and resistance R 22～R26 capacitor C 7 formed the RC oscillating circuits, and frequency of oscillation is by resistance R 22, capacitor C 7 decisions, when the base stage of triode Q2 is low level, and the triode conducting, equivalent short circuit capacitor C 7, capacitor C 7 can not be charged, and vibration stops; When the base stage of triode Q2 was high level, triode ended, and capacitor C 7 begins to discharge and recharge.The oscillator vibration, the output square wave is sent into buzzer, produces buzzing advance notice sound.

After the energising of the utility model device circuit, by electrify restoration circuit forward-backward counter, frequency divider are put 0 entirely, the TV power supply socket does not have civil power.

After inserting coins, the Coin feeding switch action, the Coin feeding switch pulse is sent into plus-minus counting circuit addition end the coin number is added up after waveform goes to tremble shaping, simultaneously, coin number decoder electric circuit inspection is not 0 to forward-backward counter, promptly sends two signals, and a signal promotes the TV power supply switching circuit through drive circuit, civil power is powered to TV power supply socket P1 through the contact of relay J 1 J11, enter the television program receiving state.Another signal is opened NAND gate IC3C, make the square-wave pulse of vibration output can send into frequency divider, produce the long delay pulse, the forward-backward counter subtraction input counting that subtracts is sent in the long delay pulse that frequency division produces after pulse is shaped as burst pulse, each long delay period produces a long delay pulse, deducts a coin number, so continuous long delay, constantly deduct the coin number, be kept to 0 until the cumulative number of inserting coins.When the counting of forward-backward counter was 0, coin number decoder electric circuit inspection to 0 was sent two signals immediately, and a signal makes drive circuit stop to promote relay, promptly stopped civil power and powered to TV power supply socket P1; Another signal-inhibiting oscillator is passed pulse to frequency divider, stops to produce the pulse of long delay subtrahend, has so just finished and has opened the motor rating, takes advantage of through every coin setting-up time length long-pending timing shutdown control procedure for total time length by the number of inserting coins.Stopping sound advance notice decoding circuit and be detecting plus-minus counting is 1, and frequency divider enters last cycle state of (adding pulse more just makes forward-backward counter put 0), start audio oscillator circuit work one-period (half a minute approximately), by buzzer sound advance notice student, if the continuation rating must be inserted coins in time cycle of oscillation again, otherwise, arrive a cycle of oscillation, i.e. control shutdown automatically.So just satisfactorily finished the repertoire that television program receiving is inserted coins and controlled and shut down the sound advance notice.

Claims

1, a kind of television program receiving controller is made up of cabinet and control device circuit, is divided into two chambers in the cabinet, and a chamber is the chamber of inserting coins, the indoor coin that Coin feeding switch is housed and can throws, and another chamber is the circuit chamber, indoor all control device circuit of adorning; The control device circuit part comprises that controller power circuit, Coin feeding switch, waveform remove to tremble shaping circuit, drive circuit, TV power supply switching circuit, oscillating circuit, frequency of oscillation initialization circuit, frequency dividing circuit, pulse shaper, audio oscillator circuit and buzzer, is characterized in that:

2, television program receiving controller as claimed in claim 1 is characterized in that plus-minus counting circuit is made up of integrated circuit (IC) 1 (CD40193), resistance R 12 and R2, capacitor C 4, C2; Capacitor C 4 positive poles connect power supply VC, minus earth; 16 pin of IC1 meet power supply VC, and 14 pin meet capacitor C 2, resistance R 2,11 pin connecting resistance R12,8 pin ground connection, 5 pin connect 3 pin of NAND gate IC3A, 4 pin connecting resistance R17, diode D21, D22 positive pole, resistance R 12 another termination power VC, capacitor C 2 another termination power VC, resistance R 2 other end ground connection.

3, television program receiving controller as claimed in claim 1, it is characterized in that coin number decoder circuit is made up of diode D6, D8, D9, D11 and resistance R 13,2 pin of integrated circuit (IC) 1 connect the positive pole of diode D6,3 pin connect the positive pole of diode D8,6 pin connect the positive pole of diode D9, and 7 pin connect the positive pole of diode D11; The negative pole connecting resistance R13 of diode D6, D8, D9, D11.

4, television program receiving controller as claimed in claim 1 is characterized in that shutting down sound advance notice decoding circuit, is made up of triode Q3, Q2, diode D7, D10, D12～D20, resistance R 14, R15, R16.The positive pole of diode D7, D10, D12 connects 2 pin, 6 pin, 7 pin of integrated circuit (IC) 1 successively, negative pole connecting resistance R14, the R15 of diode D7, D10, D12, the negative pole of diode D14～D20 connects 4 pin, 5 pin, 6 pin, 8 pin, 9 pin, 10 pin, 11 pin of integrated circuit (IC) 2 successively, the positive pole of diode D13～D20 connects the base stage of triode Q2, the grounded emitter of triode Q3, base stage connecting resistance R15, collector electrode connecting resistance R16 and diode D13 positive pole, resistance R 16 another termination power VC.

5, television program receiving controller as claimed in claim 1, the add pulse that it is characterized in that plus-minus counting circuit are by the input of integral form de-twitter circuit, and subtract pulse is shaped as the pulse shaper input of burst pulse through pulse by broad pulse.