CN201976203U - Standby and timed turning on/off control device for set top box - Google Patents
Standby and timed turning on/off control device for set top box Download PDFInfo
- Publication number
- CN201976203U CN201976203U CN 201120013380 CN201120013380U CN201976203U CN 201976203 U CN201976203 U CN 201976203U CN 201120013380 CN201120013380 CN 201120013380 CN 201120013380 U CN201120013380 U CN 201120013380U CN 201976203 U CN201976203 U CN 201976203U
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- standby
- mainboard
- top box
- power supply
- power
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Abstract
The utility model discloses a standby and timed turning on/off control device for a set top box, which comprises a mainboard and a power supply board. The power supply board is connected with the mainboard by a flat cable. The standby and timed turning on/off control device for the set top box is characterized in that a front control board is further arranged between the mainboard and the power supply board; the front control board is respectively connected with the power supply board and the mainboard by two flat cables; the front control board is provided with a singlechip processor for standby and turning-on control; a singlechip is respectively connected with an infrared receiving head, a standby key and a power supply indicator lamp by signal lines; and the infrared receiving head, the standby key and the power supply indicator lamp are arranged on the front control board.
Description
Technical field
The utility model relates to technical field of digital television set-top, particularly a kind of set-top box standby and timed power on/off control device.
Background technology
Set-top box is just becoming more and more requisite housed devices of user.
At present, China's most digital TV set-top box operate as normal power consumption is generally 8 to 15 watts, most set-top box are when holding state, the only audio frequency and video of closure plane top box output, again indicator light is shown as holding state, the state of remaining part is identical when following operate as normal, and power consumption under the holding state and work power consumption are about the same.This standby mode circuit design is simple, but stand-by power consumption is very big.And to the whole country, total power consumption is a problem that can not be ignored.Up-to-date Chinese radio, film and television industry standard GY/T 240-2009 has stipulated clearly that stand-by power consumption is less than 1W.In addition, set-top box can be carried out erasable operation to FLASH when starting or net the software upgrading of TS stream greatly, if the unexpected power down of mainboard at this moment or restart all might cause the FLASH chip of set-top box and damage or other unpredictable situations.
According to user's requirement, need the function of timing start-up during some set-top box standby simultaneously.For most of set-top box, timing start-up needs the host CPU timing after the standby, and CPU will work, and also is difficult to realize low-power consumption.
Summary of the invention
The purpose of the invention is that the set-top box standby and the timed power on/off control device of a kind of convenience, low cost, low-power consumption is provided.
The goal of the invention of the invention is achieved by the following technical solution:
A kind of set-top box standby and timed power on/off control device, comprise mainboard and power panel, described power panel is connected with described mainboard by winding displacement, it is characterized in that, control plate before also being provided with between described mainboard and the described power panel, the control plate is connected with described mainboard with described power panel respectively by two winding displacements before described, the control plate is provided with the processor of single chip computer that is used for standby and start control before described, described single-chip microcomputer by holding wire respectively be arranged at before infrared receiving terminal, standby button on the control plate be connected with power supply indicator.
Power supply indicator before described on the control plate is the reddish yellow dual-colored LED, shows redness during start, shows yellow during standby.
Described power panel powers for preceding control plate and mainboard respectively, and during standby, power panel only reduces the supply voltage of mainboard, control plate power supply before keeping.
Described single-chip microcomputer uses the host communication on an IO mouth and the mainboard, adopts self-defining communications protocol.
The holding wire of described standby button is connected with mainboard by winding displacement with the holding wire of infrared receiving terminal.
Owing to adopted technique scheme, the beneficial effects of the utility model are:
1. the host monitor standby push button signalling on the mainboard sends order to single-chip microcomputer by the KEY0 line, and is single
The sheet machine sends standby signal to power panel, and IO_3 is exported the standby of high level control power panel, and power panel just reduces the power supply of supplying with mainboard, stops the work of mainboard, only keeps the power supply of single-chip microcomputer and infrared receiving terminal, has realized low-power consumption standby.
2. the Opportunity awaiting control for linear order is sent by mainboard, and a lot of state informations of mainboard are not in time when having avoided outage
Preserve and occur abnormal conditions when causing the next time start.
3. detect timing shutdown after the time period when main frame, send order to single-chip microcomputer by the KEY0 line, single
The sheet machine judges whether the time of timing start-up arrive, and by whether the starting-up signal of infrared receiving terminal is arranged by the IO_4 monitoring, after monitoring, with the time period zero clearing, sets a starting logo position simultaneously.Single-chip microcomputer is arranged to low level with the output of IO_3, the start of control power panel, and set-top box starts, and realizes the timed power on/off function.The timed power on/off function that realizes under the low-power consumption standby situation is user-friendly to.
4. power supply indicator adopts the reddish yellow dual-colored LED, is user-friendly to and judges.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the utility model system block diagram;
Fig. 2 is a reddish yellow dual-colored LED indicator light connection layout.
Embodiment
Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
As shown in Figure 1, system comprises preceding control plate, mainboard and the power panel of being with single-chip microcomputer, power panel is connected with mainboard by winding displacement, preceding control plate is connected with mainboard with power panel respectively by two winding displacements, power panel is powered respectively by giving mainboard and preceding control plate, and power panel has the function of independent reduction main board power supply.Before the single-chip microcomputer of control on the plate be used for standby and start control, by the IO_1 and the mainboard communication of IO mouth, by IO_2 monitoring standby push button signalling, monitor the infrared receiving terminal signal, transmit control signal and driving LED to power panel by IO_3 by IO_4.The standby push button signalling line of control plate also is connected with mainboard by preceding control plate winding displacement with the infrared receiving terminal holding wire simultaneously.
Shown in Figure 2: power supply indicator D1 is for for the reddish yellow dual-colored LED of negative electrode, and red that, utmost point was connected with the 3V power supply of mainboard by resistance R 1 in Dragon Boat Festival, and utmost point in that of yellow passes through resistance R 2 and is connected with the IO_3 of single-chip microcomputer in Dragon Boat Festival.During open state, IO_3 is a low level, so amber light does not work, the 3V of mainboard makes red light bright, so the start indicator light is red.During holding state, the 3V of mainboard has reduced, and IO_3 is a high level, so red light does not work, amber light is bright, so indicator light is yellow during standby.The user just is easy to judge the state of set-top box like this.
Operation principle of the present utility model: behind the set-top box electrifying startup, single-chip microcomputer is not monitored standby button and infrared receiving terminal signal, receives only the order that main frame sends.If the user has set time of timing shutdown and start by set-top box menu, the main frame on the mainboard is reference with the signal network time, calculates the time period of timed power on/off.When one of following three kinds of situations take place: the one, the timing shutdown time arrives, and the 2nd, detect standby push button signalling, the 3rd, behind the detection infrared receiving terminal standby signal, main frame all sends the time period of standby command and timing start-up to single-chip microcomputer.After single-chip microcomputer receives standby signal, parse the time period of timing start-up, the beginning countdown, the output high level is given power panel, and power panel just turn-offs the power supply of mainboard, control plate power supply before keeping, at this moment have only single-chip microcomputer and infrared receiving terminal in work, power consumption is extremely low, has realized the super low-power consumption standby.
Behind the set-top box standby, microcomputer monitoring standby button and infrared receiving terminal signal, and countdown is handled.Equally, when one of following three kinds of situations take place: the one, when the timing start-up time arrives, the 2nd, detect the standby push button signalling, the 3rd, detect the infrared receiving terminal starting-up signal, single-chip microcomputer all output low level is given power panel, and power panel is just opened the power supply of mainboard, and set-top box restarts.
The utility model is not limited to aforesaid embodiment.The utility model expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (2)
1. set-top box standby and timed power on/off control device, comprise mainboard and power panel, described power panel is connected with described mainboard by winding displacement, it is characterized in that, control plate before also being provided with between described mainboard and the described power panel, the control plate is connected with described mainboard with described power panel respectively by two winding displacements before described, the control plate is provided with the processor of single chip computer that is used for standby and start control before described, described single-chip microcomputer by holding wire respectively be arranged at described before infrared receiving terminal, standby button on the control plate be connected with power supply indicator.
2. set-top box standby according to claim 1 and timed power on/off control device is characterized in that described power supply indicator is the reddish yellow dual-colored LED, show redness during start, show yellow during standby.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120013380 CN201976203U (en) | 2011-01-18 | 2011-01-18 | Standby and timed turning on/off control device for set top box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120013380 CN201976203U (en) | 2011-01-18 | 2011-01-18 | Standby and timed turning on/off control device for set top box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201976203U true CN201976203U (en) | 2011-09-14 |
Family
ID=44581302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120013380 Expired - Fee Related CN201976203U (en) | 2011-01-18 | 2011-01-18 | Standby and timed turning on/off control device for set top box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201976203U (en) |
-
2011
- 2011-01-18 CN CN 201120013380 patent/CN201976203U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20140118 |