CN210327841U - Earthquake early warning system based on set top box and set top box - Google Patents
Earthquake early warning system based on set top box and set top box Download PDFInfo
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- CN210327841U CN210327841U CN201921825712.1U CN201921825712U CN210327841U CN 210327841 U CN210327841 U CN 210327841U CN 201921825712 U CN201921825712 U CN 201921825712U CN 210327841 U CN210327841 U CN 210327841U
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Abstract
The utility model is suitable for an earthquake early warning technical field provides an earthquake early warning system based on STB, including main control chip, the read-write memory, instruction receiver, alarm, stand-by power supply and the demodulator that are connected with main control chip, the demodulator still connects the tuner, main control chip still connects external power supply; when the external power supply does not supply power, the standby power supply supplies power to the alarm, the demodulator and the tuner; when the tuner receives television program signals, the television signals are demodulated through the demodulator, then the demodulated signals are sent to the main control chip to be subjected to audio and video decoding, and the decoded audio and video are output to the digital television to be played; when the high-frequency head receives the earthquake early warning signal, the main control chip closes the audio and video output and sends out earthquake early warning through the alarm. Through the utility model discloses can not use digital television and close the STB when the user, receive earthquake early warning signal to when there is earthquake early warning, make the alarm send earthquake early warning.
Description
Technical Field
The utility model relates to an earthquake early warning technical field especially relates to an earthquake early warning system and STB based on STB.
Background
Digital televisions are one of the indispensable appliances in the home, and are usually connected with a set-top box, so that users can watch digital television programs on the existing television and can perform interactive digital entertainment, education and commercial activities through a network. The set-top box is called as a digital video conversion box, and the received signal can come from cable, satellite antenna, broadband network and terrestrial broadcast, that is, the content received by the set-top box includes other digital content besides the image and sound that the analog television can provide, such as electronic program guide, internet web page, weather forecast, etc., and also includes some early warning information, such as high temperature early warning, heavy rainfall early warning, earthquake early warning, etc. The television-based earthquake early warning information issuing is relatively timely for common people to publicize, so that if the earthquake early warning can be directly acquired by the set-top box, the earthquake early warning information can be timely fed back to a user, and more time escape opportunities are provided for families watching the television.
However, the user does not use the digital television at all times, and the power consumption of the set-top box in the standby state is the same as that of the set-top box in the working state, so that when the user does not need to watch television programs, the set-top box is in the power-off state, cannot receive an external signal source, and thus, the situation that the earthquake early warning signal is obtained through the set-top box has a defect.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides an earthquake early warning system and STB based on STB to there is the problem of information omission when obtaining earthquake early warning signal through the STB among the solution prior art.
In order to achieve the above object, a first aspect of the embodiments of the present invention provides an earthquake early warning system based on a set top box, including a main control chip, a read-write memory, an instruction receiver, an alarm, a standby power supply and a demodulator connected to the main control chip, wherein the demodulator is further connected to a tuner, and the main control chip is further connected to an external power supply;
the read-write memory is used for operating the program in the main control chip and storing the program;
the instruction receiver is used for receiving an external instruction of the set top box and controlling the external power supply to supply power to the main control chip;
the alarm is used for sending out earthquake early warning and low-power early warning of the standby power supply;
the standby power supply is used for supplying power to the alarm, the demodulator and the tuner through the main control chip when the external power supply does not supply power, and the main control chip supplies charging current to the standby power supply when the set top box works;
the tuner is used for receiving television program signals and earthquake early warning signals and receiving the earthquake early warning signals when the set top box is closed and the standby power supply supplies power;
the demodulator is used for demodulating the television program signal and the earthquake early warning signal and then sending the demodulated television program signal and the earthquake early warning signal to the main control chip;
the main control chip is used for carrying out audio and video decoding on the demodulated television program signal when receiving the demodulated television program signal and outputting the decoded audio and video to a digital television for playing; and the audio/video output is closed when the demodulated earthquake early warning signal is received, and the earthquake early warning is sent out through the alarm.
Optionally, the read-write memory includes a FLASH chip and a DDR chip;
the FLASH chip and the DDR chip are respectively connected with the main control chip.
Optionally, the instruction receiver comprises a key receiving unit and a remote control receiving unit;
the key receiving unit is used for receiving an instruction of an external key of the set top box;
and the remote control receiving unit is used for receiving an external remote control instruction of the set top box.
Optionally, the alarm comprises a driving circuit and a buzzer;
the driving circuit is connected with the buzzer, and the main control chip is connected with the driving circuit.
Optionally, the main control chip includes a functional interface corresponding to the read-write memory, the instruction receiver, the alarm, the standby power supply, and the demodulator.
Optionally, the main control chip further includes a debug interface;
the debugging interface is used for external upgrading software and upgrading data to debug software functions.
Optionally, the main control chip further includes a digital audio/video interface;
and the digital audio and video interface is used for converting the decoded audio and video into digital television signals and outputting the digital television signals to a digital television for playing.
Optionally, the set-top box based earthquake early warning system further comprises a radiator;
one surface of the radiator is attached to the main control chip, and the other surface of the radiator is in contact with the outside.
The embodiment of the utility model provides a second aspect provides a set-top box, including the earthquake early warning system based on the set-top box among the above-mentioned first aspect.
Optionally, when the external power supply does not supply power, the standby power supply supplies power to the main control chip, and the main control chip controls the demodulator and the alarm to work.
The embodiment of the utility model provides an earthquake early warning system based on STB, including main control chip, read write memory, instruction receiver, alarm, standby power and demodulator connected with main control chip, the demodulator is used for connecting the tuner of receiving TV program signal and earthquake early warning signal to demodulate TV program signal and earthquake early warning signal, so that main control chip can distinguish TV program signal and earthquake early warning signal. The main control chip, the read-write memory, the instruction receiver, the demodulator and the high-frequency head connected with the demodulator are used for supporting the basic functions of the set-top box, such as receiving television program signals, demodulating the television program signals, decoding audio and video, and outputting the decoded audio and video to the digital television for playing; and master control chip, alarm, demodulator and the tuner of being connected with the demodulator for support the earthquake early warning function of STB, and when external power supply was not to master control chip power supply, can use stand-by power supply to supply power to alarm, demodulator and tuner, satisfy the basic demand of earthquake early warning function, then the embodiment of the utility model provides an earthquake early warning system based on STB when the user does not use digital television and closes the STB, can receive earthquake early warning signal equally, and when there being earthquake early warning, make the alarm send earthquake early warning.
Drawings
Fig. 1 is the embodiment of the present invention provides a schematic structural diagram of an earthquake early warning system based on a set-top box.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In this document, suffixes such as "device", "means", or "unit" used to indicate elements are used only for the convenience of description of the present invention, and do not have a specific meaning per se. Thus, "device" and "component" may be used in a mixture.
In the following description, the serial numbers of the embodiments of the present invention are for description only, and do not represent the merits of the embodiments.
Example one
As shown in fig. 1, the embodiment of the utility model provides an earthquake early warning system 100 based on set-top box, including main control chip 10, read write memory 20, instruction receiver 30, alarm 40, stand-by power supply 50 and demodulator 60 that are connected with main control chip 10, tuner 70 is still connected to demodulator 60, and external power supply 80 is still connected to main control chip 10.
The embodiment of the utility model provides an in, connect each functional device through main control chip 10 to accomplish each function in the earthquake early warning system 100 based on the STB: the main control chip 10 combines the read-write memory 20, the instruction receiver 30, the demodulator 60 and the tuner 70 connected with the demodulator 60 to complete the basic functions of the set-top box, such as receiving television program signals, performing audio/video decoding, outputting the decoded audio/video to the digital television for playing, and the like, wherein the tuner 70 is used for receiving the television program signals and demodulating the television program signals through the demodulator, and the main control chip 10 performs the audio/video decoding on the television program signals demodulated by the demodulator and outputs the decoded audio/video to the digital television for playing when judging that the signals received by the tuner are the television program signals through the demodulated signals; the main control chip 10 is combined with the standby power supply 50, the alarm 40, the demodulator 60 and the tuner 70 connected with the demodulator 60, and can complete the earthquake early warning function of the set top box, wherein the tuner 70 is used for receiving earthquake early warning signals, receiving the earthquake early warning signals when the set top box is closed and the standby power supply supplies power, and demodulating the earthquake early warning signals through the demodulator, and the main control chip 10 is used for closing audio and video output and sending earthquake early warning through the alarm when the signals received by the tuner are judged to be the earthquake early warning signals through the demodulated signals, and directly sending the earthquake early warning through the alarm if the standby power supply supplies power.
In specific application, the high-frequency head receives a radio-frequency signal from a radio frequency receiver through an antenna, a cable, a satellite and other receiving modes, performs down-conversion to obtain an intermediate-frequency signal, performs filtering, amplification and sending to a demodulator for analog-to-digital conversion and demultiplexing, outputs a TS (transport stream) signal to a main control chip, and judges the signal to be an earthquake early warning signal or a television program signal through the main control chip.
In the embodiment of the present invention, the memory 20 is read and written for running the program in the main control chip and saving the program. The read-write memory is used as an operation carrier of the software program and also provides a storage space, please refer to fig. 1, in an embodiment of the present invention, the read-write memory 20 includes a FLASH chip 21 and a DDR chip 22, the storage space is provided by the FLASH chip, and the program operation condition is provided by the DDR chip. The FLASH chip 21 and the DDR chip 22 are respectively connected to the main control chip 10.
In the embodiment of the present invention, the command receiver 30 is used for receiving the external command of the set-top box and controlling the power supply of the external power source, so as to control the set-top box to perform the operations such as power-on, power-off, restart, reconnection, and standby. Referring to fig. 1, the command receiver 30 includes a key receiving unit 31 and a remote control receiving unit 32; the key receiving unit 32 receives an instruction of an external key of the set-top box, and the key receiving unit 31 may be a signal receiving unit connected to a plurality of function keys provided on the set-top box, and receives a signal when a user presses the function keys; the remote control receiving unit 32 receives an external remote control command from the set-top box, and the remote control receiving unit 32 may be an infrared receiver provided on the set-top box, and receives a signal when the external remote control command is issued.
In the embodiment of the utility model provides an, alarm 40, a low power early warning for sending earthquake early warning, and stand-by power supply 50, please refer to fig. 1, alarm 40 can include drive circuit 41 and bee calling organ 42, drive circuit 41 and bee calling organ 42 series connection, drive circuit 41 is connected with main control chip 10, during earthquake early warning, drive circuit 41 adjusts bee calling organ 42's frequency, make it send sound signal, stand-by power supply electric quantity is low when excessively, drive circuit 41 adjusts bee calling organ 42's frequency, make it send other sound signal, can be according to different early warning scenes through drive circuit, set for different frequencies, make bee calling organ send different sound signal in order to warn.
In specific application, the driving circuit can be further connected with a warning lamp in series, earthquake early warning is represented through sound and light signals, and low-power early warning is represented through light signals.
The embodiment of the utility model provides an in, stand-by power supply 50 for external power source 80 does not supply power, when the user initiatively closes being connected of external power source and STB, supplies power through main control chip 10 to alarm 40, demodulator 60 and tuner 70, makes the tuner receive earthquake early warning signal, and when receiving earthquake early warning signal, carries out earthquake early warning through alarm 40. When the set-top box works normally, the main control chip 10 also provides charging current for the standby power supply 50, and the standby power supply 50 is a rechargeable power supply.
Referring to fig. 1, in the embodiment of the present invention, the main control chip 10 includes functional interfaces corresponding to the read/write memory 20, the command receiver 30, the alarm 40, the standby power supply 50, the demodulator 60, and the external power supply 70.
In application, the earthquake early warning system based on the set-top box also comprises other functions of the set-top box, such as upgrading maintenance, audio and video transmission, peripheral access, smart card access and the like.
Referring to fig. 1, in the embodiment of the present invention, the main control chip 10 further includes a debugging interface; the debugging interface is used for external upgrading software and upgrading data to debug software functions.
Referring to fig. 1, in the embodiment of the present invention, the main control chip 10 further includes a digital audio/video interface; the digital audio and video interface is used for converting the decoded audio and video into digital television signals and outputting the digital television signals to the digital television for playing.
In specific application, an audio conversion interface, a video conversion interface and an HDMI output interface can be respectively arranged; the HDM output interface outputs digital audio and video signals, the video conversion interface outputs CVBS signals, and the audio conversion interface outputs analog audio signals.
In specific application, the functions of the main control chip are diversified, so that the integration degree is high, the power is high, and the heat dissipation of the main control chip is needed.
In an embodiment of the present invention, a heat sink is provided; one surface of the radiator is attached to the main control chip, and the other surface of the radiator is in contact with the outside, so that heat generated by the work of the main control chip is guided out.
The embodiment of the utility model provides a still provide a set-top box, including foretell earthquake early warning system 100 based on the set-top box. When the external power supply does not supply power, the standby power supply supplies power to the main control chip, and the main control chip controls the modem and the alarm to work.
The embodiment of the utility model provides an earthquake early warning system based on STB, including main control chip, the read write memory, instruction receiver, alarm, standby power and the demodulator of being connected with main control chip, the demodulator is used for connecting the tuner of receiving TV program signal and earthquake early warning signal to demodulate TV program signal and earthquake early warning signal, so that main control chip can distinguish TV program signal and earthquake early warning signal. The main control chip, the read-write memory, the instruction receiver, the demodulator and the high-frequency head connected with the demodulator are used for supporting the basic functions of the set-top box, such as receiving television program signals, demodulating the television program signals, decoding audio and video, and outputting the decoded audio and video to the digital television for playing; and master control chip, alarm, demodulator and the tuner of being connected with the demodulator for support the earthquake early warning function of STB, and when external power supply was not to master control chip power supply, can use stand-by power supply to supply power to alarm, demodulator and tuner, satisfy the basic demand of earthquake early warning function, then the embodiment of the utility model provides an earthquake early warning system based on STB when the user does not use digital television and closes the STB, can receive earthquake early warning signal equally, and when there being earthquake early warning, make the alarm send earthquake early warning.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the foregoing embodiments illustrate the present invention in detail, those skilled in the art will appreciate that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. The earthquake early warning system based on the set top box is characterized by comprising a main control chip, a read-write memory, an instruction receiver, an alarm, a standby power supply and a demodulator, wherein the read-write memory, the instruction receiver, the alarm, the standby power supply and the demodulator are connected with the main control chip;
the read-write memory is used for operating the program in the main control chip and storing the program;
the instruction receiver is used for receiving an external instruction of the set top box and controlling the external power supply to supply power to the main control chip;
the alarm is used for sending out earthquake early warning and low-power early warning of the standby power supply;
the standby power supply is used for supplying power to the alarm, the demodulator and the tuner through the main control chip when the external power supply does not supply power, and the main control chip supplies charging current to the standby power supply when the set top box works;
the tuner is used for receiving television program signals and earthquake early warning signals and receiving the earthquake early warning signals when the set top box is closed and the standby power supply supplies power;
the demodulator is used for demodulating the television program signal and the earthquake early warning signal and then sending the demodulated television program signal and the earthquake early warning signal to the main control chip;
the main control chip is used for carrying out audio and video decoding on the demodulated television program signal when receiving the demodulated television program signal and outputting the decoded audio and video to a digital television for playing; and the audio/video output is closed when the demodulated earthquake early warning signal is received, and the earthquake early warning is sent out through the alarm.
2. The set-top box based seismic early warning system of claim 1, wherein the read-write memory comprises a FLASH chip and a DDR chip;
the FLASH chip and the DDR chip are respectively connected with the main control chip.
3. The set-top box based seismic warning system of claim 1, wherein the command receiver comprises a key receiving unit and a remote control receiving unit;
the key receiving unit is used for receiving an instruction of an external key of the set top box;
and the remote control receiving unit is used for receiving an external remote control instruction of the set top box.
4. The set-top box based seismic warning system of claim 1, wherein the alarm comprises a driving circuit and a buzzer;
the driving circuit is connected with the buzzer, and the main control chip is connected with the driving circuit.
5. The set-top box based seismic early warning system of claim 1, wherein the master control chip comprises functional interfaces corresponding to the read-write memory, the command receiver, the alarm, the backup power source, and the demodulator.
6. The set-top box based seismic early warning system of claim 5, wherein the master control chip further comprises a debugging interface;
the debugging interface is used for external upgrading software and upgrading data to debug software functions.
7. The set-top box based seismic warning system of claim 5, wherein the master control chip further comprises a digital audio video interface;
and the digital audio and video interface is used for converting the decoded audio and video into digital television signals and outputting the digital television signals to a digital television for playing.
8. The set-top box based seismic warning system of claim 1, further comprising a heat sink;
one surface of the radiator is attached to the main control chip, and the other surface of the radiator is in contact with the outside.
9. A set-top box comprising a set-top box based seismic warning system according to any of claims 1 to 8.
10. The set top box of claim 9, wherein when the external power source is not supplying power, the backup power source supplies power to the main control chip, and the main control chip controls the demodulator and the alarm to operate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921825712.1U CN210327841U (en) | 2019-10-28 | 2019-10-28 | Earthquake early warning system based on set top box and set top box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921825712.1U CN210327841U (en) | 2019-10-28 | 2019-10-28 | Earthquake early warning system based on set top box and set top box |
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| Publication Number | Publication Date |
|---|---|
| CN210327841U true CN210327841U (en) | 2020-04-14 |
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| CN201921825712.1U Active CN210327841U (en) | 2019-10-28 | 2019-10-28 | Earthquake early warning system based on set top box and set top box |
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| CN (1) | CN210327841U (en) |
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- 2019-10-28 CN CN201921825712.1U patent/CN210327841U/en active Active
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