Television control device, control method and television
阅读说明：本技术 电视控制装置、控制方法及电视 (Television control device, control method and television ) 是由 王倩民 郭宏钊 左传金 张京方 *** 郭伟 王效南 武怀涛 于 2019-02-28 设计创作，主要内容包括：本发明属于电视控制技术领域,公开了一种电视控制装置,包括：交流电采样电路,与市电输出端电连接；开关电路,设置在所述电视的显示屏模块与显示屏模块供电电源的连接通路上；和,控制电路,所述控制电路的输入端与所述交流电采样电路的输出端电连接,所述控制电路的输出端与所述开关电路的输入端电连接。本发明在市电跌落或短时中断时,控制电路控制开关电路断开,从而断开显示屏模块供电电源与显示屏模块的连接通路,关闭显示屏模块,以降低电视功耗,尽可能地为电视主板保留更多的电源电量,以保证电视主板内各个模块的时序正常,从而避免电视出现重启或死机的状态。本发明还公开了一种电视控制方法及电视。(The invention belongs to the technical field of television control, and discloses a television control device, which comprises: the alternating current sampling circuit is electrically connected with the commercial power output end; the switching circuit is arranged on a connecting passage of a display screen module of the television and a power supply of the display screen module; and the input end of the control circuit is electrically connected with the output end of the alternating current sampling circuit, and the output end of the control circuit is electrically connected with the input end of the switch circuit. When the mains supply is dropped or interrupted for a short time, the control circuit controls the switch circuit to be disconnected, so that a connecting channel between the power supply of the display screen module and the display screen module is disconnected, the display screen module is closed, the power consumption of the television is reduced, more power supply electric quantity is reserved for the television mainboard as far as possible, the time sequence of each module in the television mainboard is ensured to be normal, and the television is prevented from being restarted or halted. The invention also discloses a television control method and a television.)
1. A television control apparatus, comprising:
the alternating current sampling circuit is electrically connected with the commercial power output end;
the switching circuit is arranged on a connecting passage of a display screen module of the television and a power supply of the display screen module; and the combination of (a) and (b),
and the input end of the control circuit is electrically connected with the output end of the alternating current sampling circuit, and the output end of the control circuit is electrically connected with the input end of the switch circuit.
2. The television control apparatus of claim 1, wherein the ac sampling circuit is a rectifier filter circuit.
3. A television control apparatus as claimed in claim 1 or 2 in which the control circuit is an optocoupler feedback circuit or a relay feedback circuit.
4. The television control device as claimed in claim 3, wherein the optocoupler feedback circuit comprises an optocoupler, the optocoupler comprises an illuminator and a light receiver which interact with each other, and the illuminator is electrically connected with the output end of the alternating current sampling circuit after being connected with a current limiting resistor in series.
5. The TV control apparatus as claimed in claim 4, wherein the switching circuit comprises a transistor, an emitter and a collector of the transistor are disposed between the display module of the TV and a connection path of the power supply of the display module, a base of the transistor is connected in series with the light receiver after being connected in series with a fourth current limiting resistor, and a fifth current limiting resistor is connected in parallel between the collector and the base of the transistor.
6. A television control method, comprising:
collecting an equivalent voltage value of commercial power;
and when the commercial power equivalent voltage value falls below a set value, disconnecting the connection channel between the display screen module of the television and the power supply of the display screen module.
7. The television control method of claim 6, wherein: further comprising:
and when the commercial power equivalent voltage value falls below a set value, closing the components with power consumption more than 3W.
8. The television control method of claim 7, wherein: further comprising:
when the part with power consumption more than 3W is closed, recording the working state of the part with power consumption more than 3W when the part is closed.
9. The television control method of claim 8, further comprising:
and when the commercial power equivalent voltage value is recovered to be above a set value, starting the component with the power consumption larger than 3W, and recovering to the recorded working state when the component is closed.
10. A television comprising a television control apparatus as claimed in any one of claims 1 to 5.
Technical Field
The invention relates to the technical field of television control, in particular to a television control device, a control method and a television.
Background
The mains supply has a plurality of users and is often connected with a high-power electrical appliance, so that the load is increased instantly, and the mains supply fluctuates or falls instantly. After the television products are affected by the influence, the television can be restarted or halted due to insufficient power supply of the circuit main board, and the user experience is affected.
Disclosure of Invention
The embodiment of the invention provides a television control device, a television control method and a television, and aims to solve the technical problem that the television is restarted or crashed due to insufficient power supply of a circuit main board under the condition of fluctuation or drop of mains supply. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to a first aspect of the embodiments of the present invention, there is provided a television control apparatus.
In some optional embodiments, the television control apparatus comprises:
the alternating current sampling circuit is electrically connected with the commercial power output end;
the switching circuit is arranged on a connecting channel between commercial power and a display screen module of the television; and the combination of (a) and (b),
and the input end of the control circuit is electrically connected with the output end of the alternating current sampling circuit, and the output end of the control circuit is electrically connected with the input end of the switch circuit.
By adopting the technical scheme, when the commercial power falls off or is interrupted for a short time, the control circuit controls the switch circuit to be disconnected, so that the connection path between the commercial power and the display screen module is disconnected, namely the power supply of the display screen module is disconnected, the display screen module is closed, the power consumption of the television is reduced, more power supply electric quantity is reserved for the television mainboard as far as possible, the time sequence of each module in the television mainboard is ensured to be normal, and the television is prevented from being restarted or halted.
In some optional embodiments, the alternating current sampling circuit is a rectifying and filtering circuit.
In some optional embodiments, the control circuit is an optocoupler feedback circuit or a relay feedback circuit.
In some optional embodiments, the optocoupler feedback circuit includes an optocoupler, the optocoupler includes an interacting light emitter and a light receiver, and the light emitter is connected in series with a current-limiting resistor and then electrically connected to the output end of the alternating current sampling circuit.
In some optional embodiments, the switching circuit includes a triode, an emitter and a collector of the triode are disposed between a display screen module of the television and a connection path of a power supply of the display screen module, a base of the triode is connected in series with a fourth current limiting resistor and then connected in series with the light receiver, and a fifth current limiting resistor is connected between the collector and the base of the triode in parallel.
Optionally, the television control apparatus further includes:
and the closing module is used for closing the components with the power consumption larger than 3W when the commercial power equivalent voltage value falls to a set value and below the set value.
Optionally, the television control apparatus further includes:
and the recording module is used for recording the working state of the part with the power consumption more than 3W when the part with the power consumption more than 3W is closed.
Optionally, the television control apparatus further includes:
and the starting module is used for starting the components with the power consumption larger than 3W and recovering to the recorded working state when the commercial power equivalent voltage value is recovered to be above a set value.
According to a second aspect of the embodiments of the present invention, there is provided a television control method.
In some optional embodiments, the television control method comprises:
collecting an equivalent voltage value of commercial power;
and when the commercial power equivalent voltage value falls below a set value, disconnecting the connection channel between the display screen module of the television and the power supply of the display screen module.
By adopting the technical scheme, when the mains supply is dropped or interrupted for a short time, the display screen module is firstly closed so as to reduce the power consumption of the television, and more power supply electric quantity is reserved for the television mainboard as far as possible, so that the television is prevented from being restarted or halted.
In some optional embodiments, the television control method further comprises:
and when the commercial power equivalent voltage value falls below a set value, closing the components with power consumption more than 3W.
In some optional embodiments, the television control method further comprises:
when the part with power consumption more than 3W is closed, recording the working state of the part with power consumption more than 3W when the part is closed.
In some optional embodiments, the television control method further comprises:
and when the commercial power equivalent voltage value is recovered to be above a set value, starting the component with the power consumption larger than 3W, and recovering to the recorded working state when the component is closed.
According to a third aspect of the embodiments of the present invention, there is provided a television, including the foregoing television control apparatus.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
by adopting the technical scheme, when the commercial power falls or is interrupted for a short time, the control circuit controls the switch circuit to be disconnected, so that the connection path between the display screen module and the power supply of the display screen module is disconnected, namely the power supply of the display screen module is disconnected, the display screen module is closed, the power consumption of the television is reduced, more power supply electric quantity is reserved for the television mainboard as far as possible, the time sequence of each module in the television mainboard is ensured to be normal, and the condition that the television is restarted or halted is avoided.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a block diagram showing a circuit configuration of a television control apparatus according to an exemplary embodiment.
Fig. 2 is a block diagram showing a circuit configuration of a television control apparatus according to another exemplary embodiment.
Fig. 3 is a block diagram showing a circuit configuration of a television control apparatus according to another exemplary embodiment.
Fig. 4 is a block diagram showing a circuit configuration of a television control apparatus according to another exemplary embodiment;
fig. 5 is a flowchart illustrating a television control method according to an exemplary embodiment.
In the figure: 1-an alternating current sampling circuit; 2-a control circuit; 3-a switching circuit; 4-a display screen module; 5-a switching transformer circuit; 6-a television main board; 61-close the module.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments herein to enable those skilled in the art to practice them. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the embodiments herein includes the full ambit of the claims, as well as all available equivalents of the claims.
One of the objects of the present invention is to provide a television control apparatus.
As shown in fig. 1, the television control apparatus of the present invention includes an
When the equivalent voltage value of the commercial power falls below a set value, the
When the equivalent voltage value of the commercial power is recovered to be above the set value, the
In some alternative embodiments, the set point is 40% of the nominal voltage equivalent.
By adopting the technical scheme, when the mains supply is dropped or interrupted for a short time, the display screen module is firstly closed so as to reduce the power consumption of the television, and more power supply electric quantity is reserved for the television mainboard as far as possible, so that the television is prevented from being restarted or halted.
And when the display screen module is a liquid crystal display screen, closing the display screen module, namely closing a backlight module of the liquid crystal display screen.
In some optional embodiments, as shown in fig. 2, after the commercial power output is subjected to voltage division by the
In some optional embodiments, the
In some alternative embodiments, as shown in fig. 4, the
In some optional embodiments, the
In some alternative embodiments, as shown in fig. 4, the optocoupler feedback circuit includes a light emitter PC101A and a light receiver PC101B in the optocoupler, where the light emitter PC101A is connected in series with a current-limiting resistor and then connected in parallel with a first filter capacitor C1; the light receiver PC101B is connected with a second filter capacitor C2 for filtering stray signal interference and improving the anti-interference capability of the circuit.
In some alternative embodiments, as shown in fig. 4, the current limiting resistor includes: the current limiting resistor comprises a first current limiting resistor R1, a second current limiting resistor R2 and a third current limiting resistor R3.
In some alternative embodiments, as shown in fig. 4, the switching circuit includes a transistor Q1, and a collector and an emitter of the transistor Q1 are disposed between the display panel module power supply (switching transformer) and the connection path of the display panel module, and the connection or disconnection of the display panel module power supply (switching transformer) and the connection path of the display panel module is controlled by the on or off of the collector and the emitter. The base electrode of the triode Q1 is connected with a fourth current limiting resistor R4 in series and then connected with the light receiver PC101B in series, and the fourth current limiting resistor R4 prevents the base electrode current from being excessive to damage the triode; a fifth current limiting resistor R5 is connected between the collector and the base of the transistor Q1 to ensure that the transistor is in an off state when there is no input between the collector and the base.
In some alternative embodiments, an electrolytic capacitor EC2F is connected between the collector of the transistor Q1 and ground for the switching delay of the transistor.
When the mains supply input drops or is interrupted, the output of the rectifying and filtering circuit is insufficient to drive the light emitter PC101A to be switched on after passing through the current-limiting resistor, so that the light emitter PC101A is cut off, the light receiver PC101B is cut off, the capacitor C2 is at a high level, the triode Q1 is cut off, the G1 and the G2 are disconnected, namely, the connection path between the power supply (the switch transformer) of the display screen module and the display screen module is disconnected, and the display screen module is closed.
When the commercial power is normal, the output of the rectifying and filtering circuit passes through the current-limiting resistor, then the light emitter PC101A is driven to be conducted, and then the light receiver PC101B is conducted, so that the capacitor C2 is at a low level, the triode Q1 is conducted, G1 and G2 are communicated, that is, the power supply (switching transformer) of the display screen module is connected with the display screen module, and the display screen module is turned on.
In some alternative embodiments, when the
In some optional embodiments, the television control apparatus further includes a shutdown module, configured to shut down components with power consumption greater than 3W, such as a power amplifier module, an illumination module, a fan module, a camera module, a video playing module, and the like, when the commercial power equivalent voltage value falls below the set value and the set value.
By adopting the technical scheme, the power consumption of the television is further reduced, and more power supply electric quantity is reserved for the television mainboard as far as possible, so that the television is prevented from being restarted or halted.
In some alternative embodiments, as shown in fig. 2, the main board of the television determines whether to enable the
In some alternative embodiments, as shown in fig. 3, the main board of the television determines whether to enable the
In some optional embodiments, further, the television control apparatus of the present invention further includes a recording module, configured to record, when a component with power consumption greater than 3W is turned off, an operating state of the component with power consumption greater than 3W when the component is turned off.
In some optional embodiments, the television control apparatus of the present invention further includes a starting module, configured to start the component with power consumption greater than 3W when the equivalent voltage value of the utility power is restored to be above the set value, and restore to the recorded working state when the component is turned off. For example: when the commercial power equivalent voltage value falls below the set value and the set value, the video playing module is closed, and the working state of the video playing module, such as a playing channel, is recorded when the video playing module is closed.
By adopting the technical scheme, when the commercial power is recovered to be above the set value, the components with the power consumption larger than 3W connected with the display screen module and the television main board are restarted, the use state of a user is recovered, and fragments can not appear.
In some alternative embodiments, the television main board determines whether to enable the start module according to the output signal of the
In some alternative embodiments, the television main board determines whether to enable the start module according to the output signal of the
Another object of the present invention is to provide a television control method.
The television control method comprises the following steps:
step S1: collecting an equivalent voltage value of commercial power;
step S2: and when the commercial power equivalent voltage value falls below a set value, disconnecting the connection channel between the display screen module of the television and the power supply of the display screen module.
By adopting the technical scheme, when the mains supply is dropped or interrupted for a short time, the display screen module is firstly closed so as to reduce the power consumption of the television, and more power supply electric quantity is reserved for the television mainboard as far as possible, so that the television is prevented from being restarted or halted.
In some optional embodiments, the television control method further comprises: and when the equivalent voltage value of the commercial power is recovered to be above the set value, connecting a display screen module of the television with a connecting channel of a power supply of the display screen module.
In some optional embodiments, further, the television control method further includes:
and when the equivalent voltage value of the commercial power falls below the set value, closing the components with the power consumption more than 3W.
By adopting the technical scheme, the power consumption of the television is further reduced, and more power supply electric quantity is reserved for the television mainboard as far as possible, so that the television is prevented from being restarted or halted.
In some optional embodiments, the television control method further comprises:
when the part with power consumption more than 3W is closed, recording the working state of the part with power consumption more than 3W when the part is closed.
In some optional embodiments, the television control method further comprises:
and when the commercial power equivalent voltage value is recovered to be above a set value, starting the component with the power consumption larger than 3W, and recovering to the recorded working state when the component is closed.
By adopting the technical scheme, when the commercial power is recovered to be normal, the power consumption of the display screen module connected with the television main board is restarted to be larger than 3W, the use state of a user is recovered, and fragments can not appear.
As shown in fig. 2 or fig. 3, when the utility power is dropped or interrupted for a short time, all the power outputs are in a working state, the power consumption is very large, the realized output delay can only reach dozens of milliseconds, if the utility power is dropped for a few cycles, the television can work normally, but if the utility power is dropped for a dozen cycles, when the utility power is recovered to be normal, the television main board is abnormal, so that the television is restarted or halted, manual intervention of a user is required, and the utility power is restarted after being interrupted. When the mains supply is dropped or interrupted for a short time, the display screen module is closed, and meanwhile, the parts with the power consumption larger than 3W connected with the mainboard are closed, so that the power consumption of the television is reduced to the maximum extent, and only the power supply of the mainboard is reserved, so that greater output delay is strived for the mainboard, the core work of the mainboard is ensured to be normal, and the condition of crash or restart is avoided. And the working state of the part with the power consumption larger than 3W when the part is closed is recorded, the television display screen module is started after the commercial power is normal, and the working state of the part with the power consumption larger than 3W when the part is closed is recovered, such as the recovery of watching programs, and a user may not perceive the influence of commercial power fluctuation in the middle process, thereby improving the user experience.
To achieve the desired delay, the capacitance values of the input power supply primary capacitor and the input power supply secondary output capacitor may be increased.
In order to ensure that the system can be quickly restored after the mains supply is normal, the power supply output speed of the main board after the alternating current is electrified needs to be shortened as much as possible.
It is still another object of the present invention to provide a television comprising the television control apparatus as described above.
The terms "first," "second," and the like, herein are used solely to distinguish one element from another without requiring or implying any actual such relationship or order between such elements. In practice, a first element can also be referred to as a second element, and vice versa. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure, apparatus, or device that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such structure, apparatus, or device. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a structure, device or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The specific meaning of the above terms can be understood by those of ordinary skill in the art as appropriate.
The present invention is not limited to the structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
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