CN113377575A - Reset circuit for forcibly resetting education all-in-one machine - Google Patents
Reset circuit for forcibly resetting education all-in-one machine Download PDFInfo
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- CN113377575A CN113377575A CN202110571322.1A CN202110571322A CN113377575A CN 113377575 A CN113377575 A CN 113377575A CN 202110571322 A CN202110571322 A CN 202110571322A CN 113377575 A CN113377575 A CN 113377575A
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- 230000009286 beneficial effect Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/1441—Resetting or repowering
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Abstract
The invention provides a reset circuit for forcibly resetting an education integrated machine, which comprises a main board for realizing the playing function of the education integrated machine, a power panel for providing power for the main board and a key board, wherein an STB (set top box) pin is arranged on the main board, the main board is connected with the power panel through the STB pin, an MCU (micro control unit) connected with the STB pin is arranged on the main board, a plurality of keys are arranged on the key board, and the keys are connected with the MCU through a first sampling pin. The reset circuit for forcibly resetting the education integrated machine realizes power-off restarting of the education integrated machine, and when the education integrated machine is jammed, a user can forcibly reset the education integrated machine by pressing the key.
Description
Technical Field
The invention relates to the field of education integrated machines, in particular to a reset circuit for forcibly resetting an education integrated machine.
Background
Along with the development of science and technology, the education all-in-one that can realize multimedia teaching synthesizes in an organic whole with infrared touch-control technique, intelligent official working teaching software, multimedia network communication technique, multiple technologies such as high definition panel display technique, multiple equipment in multi-functional interactive teaching equipment of an organic whole such as projecting apparatus, whiteboard, computer (optional), TV, touch function has been integrated, promote traditional display terminal to the comprehensive man-machine interactive equipment of function, can realize writing, annotate, drawing, multimedia entertainment and computer operation through the education all-in-one user.
However, the existing education integrated machine is usually embedded in a wall body of a classroom, and the education integrated machine is also embedded in the wall body at a power socket, so that a user cannot restart the education integrated machine through power failure after the system is halted due to severe jamming of the education integrated machine, and forced reset of the education integrated machine cannot be realized.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a reset circuit for forcibly resetting an education all-in-one machine, which can solve the problems that a user cannot restart the education all-in-one machine through power failure and cannot forcibly reset the education all-in-one machine after the system is halted due to severe blockage of the current teaching all-in-one machine embedded in a wall.
The purpose of the invention is realized by adopting the following technical scheme:
a reset circuit for forcibly resetting an education integrated machine is arranged in the education integrated machine and comprises a mainboard for realizing the playing function of the education integrated machine, a power panel for providing power for the mainboard and a key panel, the main board is provided with STB pins and is connected with the power panel through the STB pins, the main board is provided with an MCU connected with the STB pins, the key board is provided with a plurality of keys, the key is connected with the MCU through a first sampling pin, the MCU detects the voltage generated by pressing the key by a user through the first sampling pin and takes the voltage as a first sampling voltage, the MCU judges whether the first sampling voltage is in a standard voltage range or not, and when the first sampling voltage is not in the standard voltage range, the MCU controls the STB pin to be pulled down so as to realize forced reset of the power panel.
Furthermore, the MCU is connected with the STB pin through a GPIO interface, and the MCU controls the STB pin through the GPIO interface.
Furthermore, still be provided with the main chip that is used for controlling education all-in-one on the mainboard, the main chip through second sampling pin with all key connections on the keypad, the main chip passes through second sampling pin detects that the user presses singly the voltage that the button produced, regards it as second sampling voltage to gather voltage control education all-in-one according to the second and realize corresponding function.
Further, each key corresponds to a unique standard voltage range, each time a single key is pressed, the first sampling voltage corresponds to the unique standard voltage range, and when at least two keys are pressed, the first sampling voltage is not in the standard voltage range corresponding to any key.
Further, when the first sampling voltage is not within the standard voltage range, the MCU determines whether the duration of the first sampling voltage not within the standard voltage range reaches a preset time threshold, and if so, the MCU controls the STB pin to be pulled down for implementing forced reset of the power board.
Further, the preset time threshold is 5 seconds.
Furthermore, a power supply interface with a plurality of power supply pins is arranged on the mainboard, and the power supply board provides different voltage inputs for the mainboard through the power supply pins.
Furthermore, the number of the power supply pins is three, and the power supply board provides three voltages of 5V, 12V and 24V for the mainboard through the power supply pins.
Further, the number of the keys is four.
Compared with the prior art, the invention has the beneficial effects that: a reset circuit for forcing to reset to education all-in-one in this application, utilize MCU to detect the voltage that the user pressed the button to produce through first sampling pin and regard it as first sampling voltage, MCU judges whether first sampling voltage is in the standard voltage scope, when first sampling voltage is not in the standard voltage scope, MCU control STB pin draws low and is used for realizing forcing to reset to the power strip, thereby realize restarting the outage of education all-in-one, when the card appears in education all-in-one and is gone dead, the user can realize forcing to reset to the education all-in-one through pressing the button.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic structural diagram of a reset circuit for forcibly resetting an educational all-in-one machine according to the present invention.
In the figure: 1. a power panel; 2. a main board; 3. a first sampling pin; 4. a second sampling pin; 5. a key sheet; 51. a first key; 52. a second key; 53. a third key; 54. and a fourth key.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
As shown in fig. 1, the reset circuit for forcibly resetting an educational all-in-one machine of the present invention is arranged inside the educational all-in-one machine, and specifically comprises a main board 2 for realizing the playing function of the educational all-in-one machine, a power board 1 for providing power to the main board 2, and a key board 5, wherein the main board 2 is provided with an STB pin, the main board 2 is connected with the power board 1 through the STB pin, the main board 2 is provided with an MCU connected with the STB pin, the key board 5 is provided with a plurality of keys, the keys are connected with the MCU through a first sampling pin 3, the MCU detects a voltage generated by a user pressing the keys through the first sampling pin 3 and uses the voltage as a first sampling voltage, the MCU determines whether the first sampling voltage is within a standard voltage range, when the first sampling voltage is not within the standard voltage range, and the MCU controls the STB pin to be pulled down so as to realize forced reset of the power panel 1.
Preferably, the main chip for controlling the education integration machine is further arranged on the main board 2, the main chip is an SoC chip, and the SoC chip is an integrated circuit chip, so that the development cost of electronic/information system products can be effectively reduced, the development period is shortened, the competitiveness of products is improved, and the main product development mode is the most important product development mode to be adopted in the future industry. The main chip is connected with all keys on the key board 5 through the second sampling pin 4, the main chip detects that a user presses a single key through the second sampling pin 4, the voltage generated by the key is used as second sampling voltage, and the education all-in-one machine is controlled to realize corresponding functions according to the second sampling voltage. In this embodiment, each key is a function trigger of the education all-in-one machine, the main chip detects the second sampling voltage by triggering a single key, and the main chip judges which corresponding function needs to be started according to a pre-stored function trigger voltage comparison table. In this embodiment, the first sampling pin 3 and the second sampling pin 4 are both ADC pins.
Preferably, the MCU is connected to the STB pin through a GPIO interface, the MCU controls the STB pin through the GPIO interface, and the main chip is connected to the STB pin through another GPIO interface in this embodiment. In this embodiment, each key corresponds to a unique standard voltage range, each time a single key is pressed, a first sampling voltage corresponds to the unique standard voltage range, when at least two keys are pressed, the first sampling voltage is not in the standard voltage range corresponding to any key, in the forced reset process of the education all-in-one machine, the MCU needs to judge the first sampling voltage, if a user only presses a single key, the first sampling voltage is in the standard voltage range, the standard voltage range is the function trigger voltage comparison table, it indicates that the user only needs to start a certain function of the education all-in-one machine, and does not perform forced reset, and at this time, the main chip triggers the corresponding function according to a second sampling voltage; if the user presses two or more keys simultaneously, the first sampling voltage is not in the standard voltage range, the MCU judges whether the duration time of the first sampling voltage which is not in the standard voltage range reaches a preset time threshold value, and if so, the MCU controls the STB pin to be pulled down to realize forced reset of the power panel 1. The preset time threshold can be freely set, and 5 seconds is preferred in the embodiment. The number of the keys is four, namely, the first Key 51, the second Key 52, the third Key 53 and the fourth Key 54, such as keys 1, Key2, Key3 and Key4 in fig. 1, each Key corresponds to a unique standard voltage range, because the voltage generated by each Key in the actual pressing process is not a rated value but is within a standard voltage range.
In this embodiment, the power board 1 mainly supplies power to the motherboard 2, and therefore the motherboard 2 is provided with a power supply interface including a plurality of power supply pins, the power board 1 supplies power to the motherboard 2 through the power supply pins, the number of the power supply pins is three, and the power board 1 supplies power to the motherboard 2 through the power supply pins, so as to supply 5V, 12V, and 24V.
A reset circuit for forcing to reset to education all-in-one in this application, utilize MCU to detect the voltage that the user pressed the button to produce through first sampling pin and regard it as first sampling voltage, MCU judges whether first sampling voltage is in the standard voltage scope, when first sampling voltage is not in the standard voltage scope, MCU control STB pin draws low and is used for realizing forcing to reset to power strip 1, thereby realize restarting the outage of education all-in-one, when the card appears in the education all-in-one and is gone dead, the user can realize forcing to reset to the education all-in-one through pressing the button.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; those skilled in the art can readily practice the invention as shown and described in the drawings and detailed description herein; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides a reset circuit for being directed at education all-in-one carries out compulsory reset, reset circuit sets up inside the education all-in-one, its characterized in that: including the mainboard that is used for realizing education all-in-one instant music, do the mainboard provides the power strip, the keypad of power, be provided with the STB pin on the mainboard, the mainboard passes through the STB pin with the power strip is connected, be provided with on the mainboard with the MCU that the STB pin is connected, set up a plurality of buttons on the keypad, the button through first sampling pin with MCU connects, MCU detects the user through first sampling pin and presses the voltage that the button produced and regard it as first sampling voltage, MCU judges whether first sampling voltage is in the standard voltage scope, when first sampling voltage is not in the standard voltage scope, MCU control the STB pin is drawn low and is used for realizing right the compulsory reset of power strip.
2. A reset circuit for forcibly resetting an educational machine, as set forth in claim 1, wherein: the MCU is connected with the STB pin through a GPIO interface, and the MCU controls the STB pin through the GPIO interface.
3. A reset circuit for forcibly resetting an educational machine, as set forth in claim 1, wherein: still be provided with the main chip that is used for controlling the education all-in-one on the mainboard, the main chip through second sampling pin with all key connections on the keypad, the main chip passes through second sampling pin detects that the user presses singly the voltage that the button produced, regards it as second sampling voltage to gather voltage control education all-in-one according to the second and realize corresponding function.
4. A reset circuit for forcibly resetting an educational machine, as set forth in claim 1, wherein: each key corresponds to a unique standard voltage range, each time a single key is pressed, a first sampling voltage corresponds to the unique standard voltage range, and when at least two keys are pressed, the first sampling voltage is not in the standard voltage range corresponding to any key.
5. A reset circuit for forcibly resetting an educational machine, as set forth in claim 1, wherein: when the first sampling voltage is not in the standard voltage range, the MCU judges whether the duration time of the first sampling voltage which is not in the standard voltage range reaches a preset time threshold value, if so, the MCU controls the STB pin to be pulled down so as to realize forced reset of the power panel.
6. A reset circuit for forcibly resetting an educational machine, as set forth in claim 5, wherein: the preset time threshold is 5 seconds.
7. A reset circuit for forcibly resetting an educational machine, as set forth in claim 1, wherein: the power supply board is characterized in that a power supply interface containing a plurality of power supply pins is arranged on the mainboard, and the power supply board provides different voltage inputs for the mainboard through the power supply pins.
8. A reset circuit for forcibly resetting an educational machine, as set forth in claim 7, wherein: the number of the power supply pins is three, and the power supply board provides 5V, 12V and 24V voltage input for the mainboard through the power supply pins.
9. A reset circuit for forcibly resetting an educational machine, as set forth in claim 1, wherein: the number of the keys is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110571322.1A CN113377575A (en) | 2021-05-25 | 2021-05-25 | Reset circuit for forcibly resetting education all-in-one machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110571322.1A CN113377575A (en) | 2021-05-25 | 2021-05-25 | Reset circuit for forcibly resetting education all-in-one machine |
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| CN113377575A true CN113377575A (en) | 2021-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110571322.1A Pending CN113377575A (en) | 2021-05-25 | 2021-05-25 | Reset circuit for forcibly resetting education all-in-one machine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101197979A (en) * | 2007-12-05 | 2008-06-11 | 深圳创维数字技术股份有限公司 | Energy-saving standby system of digital television receiver |
| CN103701472A (en) * | 2013-11-12 | 2014-04-02 | 青岛歌尔声学科技有限公司 | Digital keying circuit and keying equipment |
| CN103905756A (en) * | 2014-03-26 | 2014-07-02 | 深圳创维－Rgb电子有限公司 | Television set failure processing device and television set |
| CN209343550U (en) * | 2018-08-02 | 2019-09-03 | 深圳市东方中原电子科技有限公司 | A kind of multifunctional electronic white board all-in-one machine |
| CN210534715U (en) * | 2019-11-01 | 2020-05-15 | 深圳市迈乐技术有限公司 | Circuit for preventing computer from being halted due to long-time pressing of POWER key |
-
2021
- 2021-05-25 CN CN202110571322.1A patent/CN113377575A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101197979A (en) * | 2007-12-05 | 2008-06-11 | 深圳创维数字技术股份有限公司 | Energy-saving standby system of digital television receiver |
| CN103701472A (en) * | 2013-11-12 | 2014-04-02 | 青岛歌尔声学科技有限公司 | Digital keying circuit and keying equipment |
| CN103905756A (en) * | 2014-03-26 | 2014-07-02 | 深圳创维－Rgb电子有限公司 | Television set failure processing device and television set |
| CN209343550U (en) * | 2018-08-02 | 2019-09-03 | 深圳市东方中原电子科技有限公司 | A kind of multifunctional electronic white board all-in-one machine |
| CN210534715U (en) * | 2019-11-01 | 2020-05-15 | 深圳市迈乐技术有限公司 | Circuit for preventing computer from being halted due to long-time pressing of POWER key |
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| CB02 | Change of applicant information |
Address after: Room 238, room 406, 1 Yichuang street, Huangpu District, Guangzhou, Guangdong 510700 Applicant after: Guangzhou langguo Electronic Technology Co.,Ltd. Address before: Room 238, room 406, 1 Yichuang street, Huangpu District, Guangzhou, Guangdong 510700 Applicant before: GUANGZHOU LANGO ELECTRONIC SCIENCE & TECHNOLOGY Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210910 |
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| RJ01 | Rejection of invention patent application after publication |