CN2687724Y - Signal power supply controller for television and computer - Google Patents
Signal power supply controller for television and computer Download PDFInfo
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- CN2687724Y CN2687724Y CN 200420006397 CN200420006397U CN2687724Y CN 2687724 Y CN2687724 Y CN 2687724Y CN 200420006397 CN200420006397 CN 200420006397 CN 200420006397 U CN200420006397 U CN 200420006397U CN 2687724 Y CN2687724 Y CN 2687724Y
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- circuit
- interface circuit
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- power supply
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Abstract
The utility model discloses a signal power controller of televisions and computers, comprising a control circuit, a power source socket, a signal plug, a switch lock, a push-button and an indicating light. The control circuit comprises a power source and a signal feed interface circuit, a load detecting input interface circuit, a main circuit, a power source circuit, and a lock and an input interface circuit. The signal of circumscribed televisions and computers is transmitted to the signal plug through the power source and the signal feed interface circuit. One path of a circumscribed 220V power source is transmitted to the power source socket through the load detecting input interface circuit and then through the power source and the signal feed interface circuit. A control output terminal of the main circuit is connected with the power source and the signal feed interface circuit, a signal output terminal of the load detecting input interface circuit is connected with the input terminal of the main circuit, and the output terminal of the lock and the input interface circuit is connected with the input terminal of the main circuit. The other path of the 220V power source supplies power for the main circuit through the power circuit. Such design can coordinately control the power source, television and computer signals synchronously, and has the advantages of reliable control, convenient operation, and multifunction.
Description
Technical field
The utility model relates to appliance controller, particularly can limit the controller of use TV, computer.
Background technology
Because popularizing of TV and computer, influenced our life widely in the each side of society, also more or less bring some negative effects, study and physical and mental health to child especially merit attention, suitably limit the teen-age surf time of seeing TV or computer, often make many heads of a family rather take a lot of trouble.In order to limit the use of TV, computer; various controllers have appearred on the market; but their performance is imperfection all; the timing socket that has has can only control power supply but can not control signal; the arbitrarily operation push-button that has and can not limit setting; send electricity can continue start again after the outage that has again; when can only setting from when starting shooting of having shuts down; and can not come in limited time according to start so that grasp start flexibly constantly; though the televisor that has is provided with functions of child lock; but just arbitrarily release of telepilot has been arranged, or the like numerous.Basic problem is that power feed and TV, pcs signal are independent separately controls, i.e. the feed of controller control TV, computer is not but controlled its corresponding working signal, has controlled working signal, does not but control the feed of TV, computer.
The utility model content
The purpose of this utility model is the weak point that overcomes above-mentioned prior art, proposes a kind ofly can make control more reliable to power supply and TV, the TV of pcs signal synchronous interaction control, the signal power source controller of computer, and setting can not be revised easily, cancel.
The technical solution of the utility model is: a kind of TV, the signal power source controller of computer, include control circuit, supply socket, the signal plug, switch lock, button, pilot lamp, it is characterized in that: control circuit is by power supply and signal feed interface circuit, the load detecting input interface circuit, main circuit, power circuit, lock and input interface circuit are formed, external tv, pcs signal is delivered to the signal plug by power supply and signal feed interface circuit, one tunnel process load detecting input interface circuit of external 220V power supply, deliver to supply socket by power supply and signal feed interface circuit again; And a control output of main circuit links to each other with power supply and signal feed interface circuit, the signal output of load detecting input interface circuit is connected with an input of main circuit, the output of lock and input interface circuit is connected with an input of main circuit, and another road of 220V power supply powers to main circuit by power circuit.
Further, power supply and signal feed interface circuit are divided into power feed interface circuit and signal feed interface circuit, and the power feed interface circuit is by triode T1, diode D1, resistance R 2 and relay ZJ1 form, and the resistance R 2 of this interface circuit is connected with the RA3 port of main circuit; Signal feed interface circuit is by triode T2, diode D2, and resistance R 4 and dpdt relay ZJ2 form, and the resistance R 4 of this interface circuit also is connected with the RA3 port of main circuit.Main circuit constitutes the road by microcomputer chip PIC16C54, storer watchdog circuit and other peripheral circuit, and watchdog circuit is by discrete component triode T4, triode T5, resistance R 19, resistance R 20, resistance R 21, resistance R 22, capacitor C 8 and voltage stabilizing diode DW form.The load detecting input interface circuit is by diode D3, diode D4, and resistance R 1, resistance R 3 and optocoupler GE constitute, and the resistance R 3 of this interface circuit is connected with the RB0 port of main circuit.
Control principle: the lock that has contact output is by lock and input interface circuit, become corresponding level signal to offer the microcomputer chip PIC16C54 of main circuit with lock " opening " with " pass " state exchange, make corresponding control after the status information that main circuit is accepted to lock, when lock is placed in " opening " state of beating, main circuit then receives the information of unblanking, main circuit will send a control signal to power supply and signal feed interface circuit, control power supply and signal feed interface circuit are with 220V power supply and external tv, pcs signal is fed to supply socket and signal plug simultaneously, and be equivalent to this controller to televisor this moment, any restriction is not done in the use of computer; And can accept down the set information of button at lock " opening " state, the working time in limited time of controller is selected setting; " pass is " during state when lock is placed in, main circuit then receives the information of shutting, set information from button will can not accepted by main circuit, and main circuit will be according to the start moment of load and pre-set setting value in limited time, send control signal corresponding to power supply and signal feed interface, so that supplying voltage and signal on supply socket and the signal plug are controlled, it is the restriction that the feed power supply of televisor or computer and TV signal or computer network signal will be subjected to condition, this shows 220V power supply and external tv, pcs signal, be fed on supply socket and the signal plug by power supply and signal feed interface circuit, power supply and signal feed interface are controlled by the PIC16C54 of main circuit simultaneously, be that main circuit control power supply and signal feed interface have just been controlled voltage and the signal on supply socket and the signal plug, and two outputs link, therefore controlled opening and stopping of TV or computer, the load detecting input interface circuit is serially connected with the power feed path, be used for the perception TV, the start of computer constantly, and starting-up signal fed back to main circuit, main circuit will be according to its signal to the prescribe a time limit timing control and make other control corresponding and judge of power supply and signal feed interface.Main circuit is made up of microcomputer chip, storer and other interlock circuit, it is the control center of this power-supply controller of electric, its effect is to realize the Detection ﹠ Controling of the storage load of the judgement information of lock and button etc., thereby makes this controller can reach designed function.The utility model has the advantages that: have the feed power supply that signal is then arranged, no feed power supply is no signal then, and the two is synchronous all the time; The use switch lock limits the rights of using to controller, and control is reliable, and is easy to use, diverse in function.
Description of drawings
Fig. 1 is a schematic appearance of the present utility model;
Fig. 2 is the block diagram of the utility model control circuit;
Fig. 3 is an electrical schematic diagram of the present utility model.
Embodiment
Referring to Fig. 1-Fig. 3, alternating current 220V power supply access controller is divided into two-way, and one the tunnel provides 5V and 12V dc supply to circuit after the voltage stabilizing of power isolation transformer transformation rectifying and wave-filtering; Another road through the normally closed contact of load detecting input interface circuit and power feed interface circuit relay to supply socket CZ1 feed, the power feed interface circuit is by triode T1, diode D1, resistance R 2 and relay ZJ1 form, the coil voltage of relay by power supply+the 12V direct current provides, the resistance R 2 of interface circuit is connected with the RA3 port of the microcomputer chip PIC16C54 of main circuit, the RA3 port is defined as output terminal, when RA3 output high level, triode T1 conducting, relay ZJ1 adhesive, normally closed contact disconnects, supply socket CZ1 does not have feed, otherwise when RA3 was low level, triode T1 ended, and relay ZJ1 discharges, normally closed contact recovers to the CZ1 feed, thereby the voltage that is fed on the supply socket CZ1 is controlled; And external tv, pcs signal via a pair of normally closed contact of a dpdt double-pole double-throw (DPDT) contact relay of signal feed interface circuit to signal plug CZ2 feed signal, signal feed interface circuit is by triode T2, diode D2, resistance R 4 and dpdt relay ZJ2 form, the coil voltage of relay equally by power supply+the 12V direct current provides, the resistance R 4 of interface circuit also is connected with the RA3 port of main circuit PIC16C54 chip, principle of work is with the power feed interface circuit, because power supply and signal feed interface are controlled by the output terminal RA3 of same microcomputer chip PIC16C54, thereby make the signal on its voltage that is fed to supply socket and the signal plug keep synchronous preferably, promptly have the feed power supply that signal is then arranged, no feed power supply is no signal then; In addition, the output interface circuit that constitutes by relay, can be well to 220V high pressure and controller circuitry+working signal of 5V operating voltage and load carries out the isolation on electric.The load detecting input interface circuit is by diode D3; diode D4; resistance R 1; resistance R 3 and optocoupler GE constitute; the resistance R 3 of interface circuit is connected with the RB0 port of main circuit PIC16C54 chip; the RB0 port is defined as input end; because detecting the light emitting diode of the optocoupler GE of interface circuit partly is serially connected with on the load feed circuit; when starting shooting, load then have electric current to flow through luminotron to its internal illumination; thereby make the photosensitive part of its inside be subjected to light and conducting; obtain a low level load starting-up signal on the RB0 port; for the protection optocoupler diode not by the high pressure reverse breakdown; reverse parallel connection one big current commutates diode D3 on optocoupler; for the diode of protecting optocoupler is not burnt by big working current; a big current commutates diode D4 in parallel in the same way on optocoupler; the interface circuit of Gou Chenging provides the working signal of load to microcomputer chip therefrom; microcomputer chip PIC16C54 is achieved the monitoring of load; being the time prescribe a time limit timing and make control corresponding of load start, is that feed power supply etc. is made corresponding judgment and control when load is shut down.
The time of prescribing a time limit of controller is to change by the operation to button on the controller panel, lose its due effect for fear of the randomness that controller is used, a lock is set to be come the control authority of controller is limited, locking actual is the ambiguous switch of determining that has of a contact-carrying, non-logical promptly disconnected, by+5V, the lock input interface circuit that resistance R 5 and resistance R 6 constitute is connected with the RB1 port of microcomputer chip PIC16C54, the RB1 port is defined as input end, when lock is in " unblanking " state, be equivalent to switch closure, the RB1 port obtains the input signal of a high level, can accept the setting operation of button this moment by the logic determines control of PIC16C54 chip, power supply and signal feed interface are sent control signal corresponding, make 220V power supply and external tv, pcs signal is fed on supply socket and the signal plug by power supply and signal feed interface circuit; When lock is in " pass " lock during state, be equivalent to switch and disconnect, the RB1 port obtains a low level input signal, and this moment, the PIC16C54 chip was not accepted the setting operation of button, the power supply on supply socket and the signal plug and signal is presented done control operation in limited time.
The button input interface that button and interlock circuit thereof constitute is used for realizing the setting of time in limited time, pilot lamp and interlock circuit constitute time indication in limited time and duty indication, micro computer is when detecting lock and " open ", accept the setting signal of button, and after the analysis of microcomputer chip with result storage in storer, and corresponding information is indicated by pilot lamp.By the duty indicating circuit that pilot lamp constitutes the controller current working state is indicated.
Microcomputer chip PIC16C54 is the core of controller, it and storer, watchdog circuit and other peripheral circuit constitute main circuit, watchdog circuit is by discrete component triode T4, triode T5, resistance R 19, resistance R 20, resistance R 21, resistance R 22, capacitor C 8 and voltage stabilizing diode DW form, simple and practical, the RA2 of microcomputer chip is used to the watchdog circuit that resets, its principle of work is: when the normal working procedure of microcomputer chip, each cycle of program is all exported the high level reseting pulse signal of a 10uS to watchdog circuit, and be output as low level at the RA2 of maintenance At All Other Times of program loop port, this high level reseting pulse signal makes triode T4 conducting, capacitor C 8 is by short circuit, the 3.6V voltage breakdown that the base stage of triode T5 does not reach requirement because of voltage stabilizing diode DW can not get bias voltage and ends, the reset terminal of microcomputer chip is not influenced by watchdog circuit, when program is subjected to external interference and can not forms circulation time, the RA2 port is output as low level makes the triode T4 of watchdog circuit can not be capacitor C 8 short circuit dischanges, when the charge value of capacitor C 8 reaches 3.6V and makes voltage stabilizing diode DW conducting, triode T5 conducting thereupon forces microcomputer chip to enter reset mode.Storer is the 24LC02 chip, adopts the I2C bus mode to connect with microcomputer chip, to reduce taking microcomputer chip I/O port.Microcomputer chip of a great variety, even can adopt logic control device to reach required control function, this is the microcomputer chip employing PIC16C54 of controller in limited time, its instruction set adopts one-byte instruction, has extremely strong antijamming capability, mode of oscillation adopts cheap RC mode, and program run is reliable.
The timing function of controller is described:
Controller can be selected different duties according to situation about having nothing in common with each other: controller is provided with a lock, when lock is placed in " opening " state of beating, this controller is not done any restriction to the use of televisor or computer, and can select to set to the working time in limited time of controller under this state; " pass is " during state when lock is placed in, the feed power supply of televisor or computer and TV signal or computer network signal will be subjected to the restriction of time, the length of binding hours will be decided according to giving first setting value, the operation of setting-up time can only be carried out under unlocking condition, the length of time is indicated by pilot lamp and is stored, time can be selected 1～7 hour totally 7 gear according to user's wish in limited time, if select 1 hour, then can only start shooting 1 hour; If select 7 hours, then allow start 7 hours, timing in limited time from start constantly, the middle permission shut down, but the unused time will be by the accumulative total timing, and needing behind the end-of-job in limited time could start shooting more than 2 hours at interval carries out next time work in limited time, promptly pauses to the back in limited time and can start shooting in 2 hours, reach more than 2 hours if in the timing Control Circulation of prescribing a time limit, shut down voluntarily, then be considered as next timing in limited time and be allowed to begin; Controller is if be de-energized in limited time, must just be allowed to start at interval more than 2 hours and enter work in limited time, send electricity again with after preventing from after prescribing a time limit end-of-job last time to have a power failure to controller artificially, reach the purpose that continues out televisor or computer to destroy normal working cycle in limited time; Controller also is provided with the absolute limitations function, selects this limitation function, and only being under the unlocking condition at controller in limited time could be to load feed power supply and signal, otherwise will be used TV or computer by absolute limitations; Working station indicator be used for indication in limited time controller whether allow to begin to enter timing in limited time, or prescribe a time limit and delaying time at interval, the start that is under an embargo of this time period.
Certainly, only enumerate a kind of preferred implementation here, the protection domain that other are equal to, design roughly the same all should belong to this patent repeats no more here.
Claims (4)
1, the signal power source controller of a kind of TV, computer, include control circuit, supply socket, signal plug, switch lock, button, pilot lamp, it is characterized in that: control circuit is made up of power supply and signal feed interface circuit, load detecting input interface circuit, main circuit, power circuit, lock and input interface circuit, external tv, pcs signal are delivered to the signal plug by power supply and signal feed interface circuit, and a road of external 220V power supply passes through the load detecting input interface circuit, delivers to supply socket by power supply and signal feed interface circuit again; And a control output of main circuit links to each other with power supply and signal feed interface circuit, the signal output of load detecting input interface circuit is connected with an input of main circuit, the output of lock and input interface circuit is connected with an input of main circuit, and another road of 220V power supply powers to main circuit by power circuit.
2, controller according to claim 1, it is characterized in that power supply and signal feed interface circuit are divided into power feed interface circuit and signal feed interface circuit, the power feed interface circuit is by triode (T1), diode (D1), resistance (R2) and relay (ZJ1) are formed, and the resistance of this interface circuit (R2) is connected with (RA3) port of main circuit; Signal feed interface circuit is by triode (T2), diode (D2), and resistance (R4) and dpdt relay (ZJ2) are formed, and the resistance of this interface circuit (R4) also is connected with (RA3) port of main circuit.
3, controller according to claim 1, it is characterized in that main circuit constitutes the road by microcomputer chip (PIC16C54), storer watchdog circuit and other peripheral circuit, watchdog circuit is by discrete component triode (T4), triode (T5), resistance (R19), resistance (R20), resistance (R21), resistance (R22), electric capacity (C8) and voltage stabilizing diode (DW) are formed.
4, controller according to claim 1, it is characterized in that the load detecting input interface circuit by diode (D3), diode (D4), resistance (R1), resistance (R3) and optocoupler (GE) constitute, and the resistance of this interface circuit (R3) is connected with (RB0) port of main circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420006397 CN2687724Y (en) | 2004-02-23 | 2004-02-23 | Signal power supply controller for television and computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420006397 CN2687724Y (en) | 2004-02-23 | 2004-02-23 | Signal power supply controller for television and computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2687724Y true CN2687724Y (en) | 2005-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420006397 Expired - Fee Related CN2687724Y (en) | 2004-02-23 | 2004-02-23 | Signal power supply controller for television and computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2687724Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100437401C (en) * | 2005-07-13 | 2008-11-26 | 深圳鼎识科技有限公司 | Vision protection device with timing function and screen display electrical appliance |
| CN101916977A (en) * | 2010-07-30 | 2010-12-15 | 纽福克斯光电科技（上海）有限公司 | Power socket protection circuit |
| CN106125808A (en) * | 2016-08-31 | 2016-11-16 | 成都策创科技有限公司 | A kind of feedback circuit of Control load condition |
-
2004
- 2004-02-23 CN CN 200420006397 patent/CN2687724Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100437401C (en) * | 2005-07-13 | 2008-11-26 | 深圳鼎识科技有限公司 | Vision protection device with timing function and screen display electrical appliance |
| CN101916977A (en) * | 2010-07-30 | 2010-12-15 | 纽福克斯光电科技（上海）有限公司 | Power socket protection circuit |
| CN101916977B (en) * | 2010-07-30 | 2013-01-23 | 纽福克斯光电科技（上海）有限公司 | Power socket protection circuit |
| CN106125808A (en) * | 2016-08-31 | 2016-11-16 | 成都策创科技有限公司 | A kind of feedback circuit of Control load condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |