CN110942684B - Electronic sounding reading material and method for clicking reading - Google Patents
Electronic sounding reading material and method for clicking reading Download PDFInfo
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- CN110942684B CN110942684B CN202010009058.8A CN202010009058A CN110942684B CN 110942684 B CN110942684 B CN 110942684B CN 202010009058 A CN202010009058 A CN 202010009058A CN 110942684 B CN110942684 B CN 110942684B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/06—Electrically-operated educational appliances with both visual and audible presentation of the material to be studied
- G09B5/062—Combinations of audio and printed presentations, e.g. magnetically striped cards, talking books, magnetic tapes with printed texts thereon
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/06—Electrically-operated educational appliances with both visual and audible presentation of the material to be studied
- G09B5/065—Combinations of audio and video presentations, e.g. videotapes, videodiscs, television systems
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Abstract
The invention discloses an electronic sounding reading material and a method for clicking and reading, which comprises a control system which is mainly composed of a main control single-chip microcomputer U1 arranged on a circuit board in a base, wherein a circuit of a clicking and reading unit is connected to a page clicking switch and each icon clicking switch of each page, one group of pins of the U1 are connected with a display screen output socket which is used for being connected with a display unit, MICP and MICN pins of a voice chip U2 of a voice unit are connected with a microphone, HPOL and HPOR pins are connected with an earphone, and a battery charging unit monitors the output voltage of BAT. The invention adopts STM32 series 32 bit microprocessor and uses 12 bit ADC pins to realize click-reading keyboard, the invention has the functions of earphone speaker switching, repeating reading, voice recognition and intelligent charging, the TFT display screen has the function of touch button, the volume control button has maximum volume limit, and the hearing of infants is prevented from being damaged.
Description
Technical Field
The invention relates to the field of electronic sounding readings, in particular to a method for clicking and reading the electronic sounding readings.
Background
Along with the popularization of electronic sounding readings, more parents purchase electronic sounding readings for infants to inspire the infants to see the learning and sounding capabilities.
The electronic sounding reading material in the prior art has single function, does not have the functions of earphone speaker switching, repeating, voice recognition and intelligent charging, and causes a plurality of inconveniences in use.
In order to further improve the earphone speaker switching, repeating, voice recognition and intelligent charging functions, new designs must be made.
Disclosure of Invention
The invention aims to provide an electronic sounding reading material with earphone loudspeaker switching, repeating, voice recognition and intelligent charging functions and a clicking method.
In order to achieve the purpose, the invention adopts the following technical scheme:
An electronic sounding reading and a point reading method are implemented, and the method comprises the following steps:
Firstly, arranging a circuit board in a base of an electronic sounding reading material, wherein a control system mainly composed of a main control single-chip microcomputer U1 is arranged on the circuit board, and the control system is connected with a downloading unit, an external storage unit, a display unit, a voice unit, a click-reading unit, a battery charging unit, a detection earphone inserting unit and a battery management unit; the circuit of the reading unit is connected to a page number click switch and each icon click switch of each page, one group of pins of the main control single-chip microcomputer U1 are connected with a display screen output socket, the display screen output socket is used for being connected with the display unit, MICP and MICN pins of a voice chip U2 of the voice unit are connected with a microphone, SPOP and SPON pins are connected with a loudspeaker, HPOL and HPOR pins are connected with an earphone, a fifth pin of a charging chip U4 of the battery charging unit is connected with a battery BAT, and meanwhile, a battery monitoring pin connected with the main control single-chip microcomputer U1 is also connected from the pins to monitor the output voltage of the BAT;
secondly, loading a main control program memory of a main control single-chip microcomputer U1 with a page number clicking program module, an icon clicking program module, a sounding program module according to a drawing number, a video program module according to the drawing number, a reader sounding capture program module, a reader sounding replay program module, an earphone speaker switching program module, a reader sounding judging program module, a battery electric quantity monitoring display program module and a battery alarm program module, wherein the instructions of the program modules are suitable for being loaded and executed by a main control processor;
thirdly, after the reader opens the electronic sounding reading material, clicking a page number clicking switch by using a clicking pen, clicking an icon clicking switch by using the clicking pen, judging the current page number by using a page number clicking program module according to the ADC value obtained by the page number ADC circuit, judging the current icon by using the icon clicking program module according to the ADC value obtained by the icon ADC circuit, and combining the page number and the icon into a two-byte search number;
Step four, next, calling a video program module according to the figure number and a sound program module according to the figure number, and respectively transmitting the voice data and the video data to a voice unit and a display unit from an external storage unit according to a search code for playing;
And fifthly, in the whole point reading process, the battery management unit always monitors the terminal voltage of the battery BAT, the battery electric quantity monitoring display program module introduces the battery voltage into the battery monitoring pin in real time to carry out ADC conversion, two thresholds are set in the program, when the obtained ADC value is equal to or lower than a first threshold, the battery electric quantity monitoring display program module drives the battery electric quantity display strip to flash and enables the battery alarm buzzer to send out prompt tones, and when the obtained ADC value is equal to or lower than a second threshold, the battery electric quantity monitoring display program module drives the battery switch to close the power supply.
In the above method, in the fourth step, before the calling video program module according to the drawing number calls the video data, it is detected whether a TFT display screen is inserted in the display screen output socket, and if no TFT display screen is inserted, the calling video program module according to the drawing number does not display.
In the above method, in the fourth step, after the voice data is transmitted to the voice unit according to the figure number sounding program module to play, in the process of waiting for the next click, the reader sounding capture program module stores the input voice of the reader to be repeated in the temporary storage area of the external storage unit, and after the reader presses the repeated button, the reader sounding playback program module drives the voice unit to sound.
In the above method, after the reader presses the repeat button and the reader sounding playback program module drives the voice unit to sound, the reader sounding judgment program module gives the judgment result and encourages the reader.
In the method, in the first step, the circuit of the click-to-read unit is connected to the page number click switch and each icon click switch of each page, two leads of U1 connected with the page number click switches Dy 1-Dy 16 are prepared to each page, then two input pins of U1 are connected, and the two pins are internally provided with an ADC function;
In the method, meanwhile, 8 leads of the U1 connection icon click switches An1 to An48 are prepared to each page, and then 8 input pins of the U1 are connected, and the 8 pins are internally provided with An ADC function.
In the above method, two pins of U1 connected with Dy1 to Dy16, one pin being connected with Dy1 to Dy8, the connection point potentials of the resistors R11 to R18 and R1 being different, after the ADC conversion is performed by the page clicking program module, the corresponding page numbers 1 to 8 are found according to the table set in the conversion result data query program; the other is connected with Dy 9-Dy 16, in the different connection of the resistors R21-R28 and R2, the potentials of the connection points are different, after the ADC conversion is carried out on the resistors by the page number clicking program module, the corresponding page numbers 9-16 are found according to the table established in the conversion result data query program;
In the above method, the 8 pins of U1 connected with An1 to An48 have different connection point potentials in different connections between the resistors R31 to R36 and the resistors R41 to R48, and after the icon clicking program module performs ADC conversion on the connection point potentials, the corresponding drawing numbers 1 to 48 are found according to the table set in the conversion result data query program.
An electronic sounding reading is designed and manufactured, comprising: a control system mainly composed of a main control single-chip microcomputer U1 is arranged on a circuit board in the base, and the U1 is connected with a downloading unit, an external storage unit, a display unit, a voice unit, a click-reading unit, a battery charging unit, a detection earphone inserting unit and a battery management unit; the circuit of the reading unit is connected to the page number click switch and each icon click switch of each page, one group of pins of the U1 are connected with the display screen output socket, the display screen output socket is used for being connected with the display unit, MICP and MICN pins of a voice chip U2 of the voice unit are connected with the microphone, SPOP and SPON pins of the U2 are connected with the loudspeaker, HPOL and HPOR pins of the U2 are connected with the earphone, a fifth pin of a charging chip of the battery charging unit is connected with the battery BAT, and meanwhile, a battery monitoring pin connected with the main control single-chip microcomputer U1 is also connected from the pins to monitor the output voltage of the BAT.
The battery charging unit is provided with a battery switch which is composed of a field effect transistor, the grid electrode of the battery switch is connected with one pin of the main control singlechip U1, and the on and off of the field effect transistor are determined by the pin; the other pin with ADC function inside U1 is connected with the positive pole of battery BAT, detects the output voltage of battery, and when the output voltage of battery is lower than the second threshold value, turns off the battery output.
After one pin of the master control single-chip microcomputer U1 is connected with a resistor Rh, the pin is connected with HPOL of the U2, and when the earphone is not connected, the pin of the U1 inputs a high level; after the earphone is inserted, the pin of the U1 is grounded through the earphone coil, and the master control singlechip U1 controls the loudspeaker to be disconnected and the earphone to be connected.
Two pins of U1 connected with page click switches Dy 1-Dy 16 of the click-reading unit have ADC functions, one pin is connected with Dy 1-Dy 8, the potentials of connection points of the resistors R11-R18 and R1 are different in different connection, and after the page click program module performs ADC conversion on the resistors, the corresponding page numbers 1-8 are found according to a table set in a conversion result data query program; the other is connected with Dy 9-Dy 16, in the different connection of the resistors R21-R28 and R2, the potentials of the connection points are different, after the ADC conversion is carried out on the resistors by the page number clicking program module, the corresponding page numbers 9-16 are found according to the table established in the conversion result data query program;
The icon clicking switches An 1-An 48 are connected with 8 pins of U1 and have ADC functions, the connection point potentials of the resistors R31-R36 and the resistors R41-R48 are different in different connection, and after the icon clicking program module performs ADC conversion on the resistors, corresponding figure numbers 1-48 are found according to a table established in a conversion result data query program;
the page numbers 9 to 16 and the figure numbers 1 to 48 constitute a search number.
The beneficial effects of the invention are as follows: by adopting a high-speed, energy-saving and powerful STM32 series 32-bit microprocessor, the accurate conversion of 12-bit ADC pins is utilized in the design of a point reading method, so that the point reading of 16 pages of electronic sounding readings can be realized, and the identification pins can be increased if expansion is needed; 48 icons can be designed for each page of electronic sounding reading material for point reading, the invention has the functions of earphone speaker switching, repeated reading, voice recognition and intelligent charging, the TFT display screen has the function of a touch button, and the volume control button has the maximum volume limit, so that the hearing of infants is prevented from being damaged.
Drawings
FIG. 1 is a schematic perspective view of an electronic sounding book according to the present invention and a method of clicking the same;
FIG. 2 is a schematic view of the right view direction of the electronic sounding book according to the present invention, mainly showing various operation components on the right side of the base, wherein a socket of a display unit 13 is provided, and a TFT display screen of the display unit has a touch button function, where a volume control button can be set, and the volume control has a maximum volume limit, so as to avoid damaging hearing of infants;
FIG. 3 is a schematic view of the main view of the electronic sounding reader, mainly showing various operation components in the main view direction of the base, according to the electronic sounding reader and the method for clicking and reading of the present invention;
FIG. 4 is a circuit diagram of a master control single-chip microcomputer U1 according to the electronic sounding reading and clicking method of the present invention, and is also equivalent to a block diagram of a control system constituted by the same;
FIG. 5 is a schematic diagram of a speech unit 14 according to the present invention;
FIG. 6 is a schematic diagram of a pointing device 15 according to the present invention;
FIG. 7 is a schematic diagram of a battery charging unit 16 according to the electronic sounding reading and the method of clicking according to the present invention;
FIG. 8 is a schematic diagram of program modules involved in the electronic sounding reading and the method of clicking reading of the present invention.
Detailed Description
The technical scheme of the invention is further described below through the best mode with reference to the attached drawings.
As shown in fig. 1 to 8, a method for implementing electronic sounding reading and clicking reading includes:
Firstly, a circuit board is arranged in a base of an electronic sounding reading material 1, a control system mainly composed of a main control single-chip microcomputer U1 is arranged on the circuit board, and the control system is connected with a downloading unit 11, an external storage unit 12, a display unit 13, a voice unit 14, a click-reading unit 15, a battery charging unit 16, a detection earphone inserting unit 17 and a battery management unit 18; the circuit of the reading unit 15 is connected to a page number click switch and each icon click switch of each page, one group of pins of the main control single-chip microcomputer U1 are connected with the display screen output socket 8, the display screen output socket 8 is used for being connected with the display unit 13, MICP and MICN pins of a voice chip U2 of the voice unit 14 are connected with the microphone 9, SPOP and SPON pins are connected with the loudspeaker 2, HPOL and HPOR pins are connected with the earphone 3, the fifth pin of a charging chip U4 of the battery charging unit 16 is connected with the battery BAT, and meanwhile, a battery monitoring pin connected with the main control single-chip microcomputer U1 is also connected from the pins to monitor the output voltage of the BAT;
Secondly, loading a main control program memory 20 of the main control single chip microcomputer U1 with a program module 111 including page number clicking, icon clicking, calling video, reader sounding and capturing, reader sounding and playing back, earphone and speaker switching, and battery monitoring and displaying, and battery alarming, wherein the program module 113 includes a page number clicking program module 114, an icon clicking program module 112, a program module 114 called according to the figure number, a program module 115 called according to the figure number, a program module 116 called by the reader sounding and playing back, a program module 117 switched over by the earphone speaker, a program module 118 called by the reader sounding and judging, a program module 119 called by the battery monitoring and displaying, and a program module 120 called by the battery alarming, and the instructions of the program modules are suitable for being loaded and executed by the main control processor 22;
Third, next, after the reader opens the electronic sounding reading material 1, clicking the page number click switch with the click pen, and then clicking the icon click switch with the click pen, the page number click program module 111 determines the current page number according to the ADC value obtained by the page number ADC circuit, the icon click program module 112 determines the current icon according to the ADC value obtained by the icon ADC circuit, and groups the page number and the icon into a two-byte search number;
Fourth, next, according to the figure number sounding program module 113, according to the figure number calling video program module 114, according to the search code, transmitting the voice data and video data from the external storage unit 12 to the voice unit 14 and the display unit 13 for playing;
Fifth, in the whole click-through process, the battery management unit 18 always monitors the terminal voltage of the battery BAT, the battery power monitoring display program module 119 introduces the battery voltage into the battery monitoring pin in real time for ADC conversion, and sets two thresholds in the program, when the obtained ADC value is equal to or lower than the first threshold, the battery power monitoring display program module 119 drives the battery power display bar 43 to flash and causes the battery alarm buzzer to send out a prompt tone, and when the obtained ADC value is equal to or lower than the second threshold, the battery power monitoring display program module 119 drives the battery switch 19 to turn off the power supply.
In the above method, in the fourth step, before the calling video program module 114 according to the drawing number calls the video data, it is detected whether the TFT display screen is inserted in the display screen output socket 8, and if no TFT display screen is inserted, the calling video program module 114 according to the drawing number does not display.
In the above method, in the fourth step, after the voice data is transmitted to the voice unit 14 for playing according to the figure number sounding program module 113, in the process of waiting for the next click, the reader sounding capture program module 115 stores the voice input for the reader to read again in the temporary storage area of the external storage unit 12, and after the reader presses the repeat button 7, the reader sounding playback program module 116 drives the voice unit 14 to sound.
In the above method, after the reader presses the repeat button 7 and the reader utterance replay program module 116 drives the speech unit 14 to make an utterance, the reader utterance evaluation program module 118 gives an evaluation result to encourage the reader.
In the above method, in the first step, the circuit of the click-to-read unit 15 is connected to the page click switch and each icon click switch of each page, two leads of the page click switches Dy 1-Dy 16 connected with U1 are prepared to each page, and then connected with two input pins of U1, and the two pins have an ADC function inside;
meanwhile, 8 leads of the U1 connection icon click switches An1 to An48 are prepared to each page, then 8 input pins of the U1 are connected, and the 8 pins are internally provided with ADC functions.
In the above method, two pins of U1 connected with Dy1 to Dy16, one pin being connected with Dy1 to Dy8, in different connections between resistors R11 to R18 and R1, the potentials of the connection points are different, and after the ADC conversion is performed by the page clicking program module 111, the corresponding page numbers 1 to 8 are found according to the table set in the conversion result data query program; the other is connected with Dy 9-Dy 16, in the different connection of the resistors R21-R28 and R2, the potentials of the connection points are different, and after the ADC conversion is carried out on the resistors by the page number clicking program module 111, the corresponding page numbers 9-16 are found according to the table established in the conversion result data query program;
in the above method, the 8 pins of U1 connected with An1 to An48 have different connection point potentials in different connections between the resistors R31 to R36 and the resistors R41 to R48, and after the icon clicking program module 112 performs ADC conversion on the connection point potentials, the corresponding drawing numbers 1 to 48 are found according to the table set in the conversion result data query program.
An electronic sounding reading of a preferred embodiment, the electronic sounding reading 1 comprising: a control system mainly composed of a main control single-chip microcomputer U1 is arranged on a circuit board in the base, and the U1 is connected with a downloading unit 11, an external storage unit 12, a display unit 13, a voice unit 14, a click-reading unit 15, a battery charging unit 16, a detection earphone inserting unit 17 and a battery management unit 18; the circuit of the reading unit 15 is connected to the page number click switch and each icon click switch of each page, one group of pins of the U1 is connected with the display screen output socket 8, the display screen output socket 8 is used for being connected with the display unit 13, MICP and MICN pins of a voice chip U2 of the voice unit 14 are connected with the microphone 9, SPOP and SPON pins of the U2 are connected with the loudspeaker 2, HPOL and HPOR pins of the U2 are connected with the earphone 3, a fifth pin of a charging chip U4 of the battery charging unit 16 is connected with the battery BAT, and meanwhile, a battery monitoring pin connected with the main control single-chip microcomputer U1 is also connected from the pin to monitor the output voltage of the BAT.
A battery switch 19 is arranged in the battery charging unit 16 and is composed of a transistor Q11, the grid electrode of the Q11 is connected with one pin of the main control singlechip U1, and the on and off of the Q11 are determined by the pin; the other pin with ADC function inside U1 is connected with the positive pole of battery BAT, detects the output voltage of battery, and when the output voltage of battery is lower than the second threshold value, turns off the battery output.
After one pin of the master control single-chip microcomputer U1 is connected with a resistor Rh, the pin is connected with HPOL of the U2, and when the earphone 3 is not connected, the pin of the U1 inputs a high level; after the earphone 3 is inserted, the pin of the U1 is grounded through the earphone coil, and the master control single-chip microcomputer U1 controls the loudspeaker 2 to be disconnected and the earphone 3 to be connected.
Two pins of U1 connected with page click switches Dy 1-Dy 16 of the click-to-read unit 15 have ADC functions, one pin is connected with Dy 1-Dy 8, the potentials of connection points of the resistors R11-R18 and R1 are different in different connection, and after the page click program module 111 performs ADC conversion, corresponding page numbers 1-8 are found according to a table set in a conversion result data query program; the other is connected with Dy 9-Dy 16, in the different connection of the resistors R21-R28 and R2, the potentials of the connection points are different, and after the ADC conversion is carried out on the resistors by the page number clicking program module 111, the corresponding page numbers 9-16 are found according to the table established in the conversion result data query program;
The icon clicking switches An1 to An48 are connected with 8 pins of U1 and have ADC functions, the connection point potentials of the resistors R31 to R36 and the resistors R41 to R48 are different in different connection, and after the icon clicking program module 112 performs ADC conversion on the resistors, corresponding figure numbers 1 to 48 are found according to a table established in a conversion result data query program;
the page numbers 9 to 16 and the figure numbers 1 to 48 constitute a search number.
As shown in fig. 4, STM32F103ZET is 144 pins with 3 12-bit analog/digital converters embedded, each sharing up to 21 external ADC channels. STM32F103ZET maximum operating frequency 72MHz, 2.0-3.6V power supply and I/O interface drive voltage. Up to 112 fast I/O ports may be set up for selection and up to 13 communication interfaces may be set up for selection.
As shown in fig. 5, the LD3320 is packaged by QFN48, and when in use, the module is often manufactured into a 40-pin module which is conveniently inserted into other PCB circuit boards, the chip has the functions of speaker and earphone volume adjustment, not shown in the present invention, a protective volume adjusting mechanism which starts from low volume and can limit the volume should be considered when designing specific products, so as to avoid damage to the hearing of infants, for example, a volume touch control button is arranged on a TFT display screen, the volume control has the maximum volume limit, and the hearing of infants is prevented from being damaged.
As shown in fig. 6, all the 10 pins of U1 in the preferred embodiment have ADC functions, and they form a click-to-read keyboard, and since many pins of STM32F103ZET having ADC functions are idle, the click-to-read keyboard can be extended.
As shown in FIG. 7, TC4056 is selected as U4, the charging current can reach 1A, the RSD on resistance of the field effect transistor Q11 is only tens of milliohms when the field effect transistor Q11 is on, the voltage drop is small, and the heat productivity of the field effect transistor is small because the current of the electronic sounding reading material is not large.
The foregoing is merely illustrative of the preferred embodiments of the present invention, and no limitation thereof should be construed as being implied by the specification or limitations of the invention to the extent possible, which modifications are suggested to one of ordinary skill in the art upon which this invention pertains.
Claims (1)
1. A method of electronic sounding reading an object, the method comprising:
Firstly, arranging a circuit board in a base of an electronic sounding reading material (1), wherein a control system mainly composed of a main control single-chip microcomputer U1 is arranged on the circuit board, and the control system is connected with a downloading unit (11), an external storage unit (12), a display unit (13), a voice unit (14) and a click-reading unit (15), a battery charging unit (16), a detection earphone inserting unit (17) and a battery management unit (18); the circuit of the reading unit (15) is connected to a page number click switch and each icon click switch of each page, one group of pins of the main control single-chip microcomputer U1 are connected with a display screen output socket (8), the display screen output socket (8) is used for being connected with a display unit (13), MICP and MICN pins of a voice chip U2 of a voice unit (14) are connected with a microphone (9), SPOP and SPON pins are connected with a loudspeaker (2), HPOL and HPOR pins are connected with an earphone (3), a fifth pin of a charging chip U4 of a battery charging unit (16) is connected with a battery BAT, and meanwhile, a battery monitoring pin connected with the main control single-chip microcomputer U1 is also outputted from the pins to monitor the output voltage of the battery BAT;
Secondly, loading a main control program memory (20) of the main control single-chip microcomputer U1, wherein the main control program memory comprises a page number clicking program module (111), an icon clicking program module (112), a figure number sounding program module (113), a figure number calling video program module (114), a reader sounding capture program module (115), a reader sounding playback program module (116), an earphone speaker switching program module (117), a reader sounding judging program module (118), a battery electric quantity monitoring display program module (119) and a battery alarm program module (120), and the instructions of the program modules are suitable for being loaded and executed by a main control processor (22);
thirdly, after the reader opens the electronic sounding reading material (1), clicking a page number clicking switch by using a clicking pen, clicking an icon clicking switch by using the clicking pen, judging the current page number by using a page number clicking program module (111) according to the ADC value obtained by a page number ADC circuit, judging the current icon by using an icon clicking program module (112) according to the ADC value obtained by the icon ADC circuit, and combining the page number and the icon into a two-byte search number;
A fourth step, next, calling a video program module (114) according to the figure number and a figure number according to a figure number, and respectively transmitting the voice data and the video data to a voice unit (14) and a display unit (13) for playing according to the search code from an external storage unit (12);
Fifthly, in the whole point reading process, a battery management unit (18) always monitors the terminal voltage of the battery BAT, a battery electric quantity monitoring display program module (119) introduces the battery voltage into a battery monitoring pin in real time to perform ADC conversion, two thresholds are set in the program, when the obtained ADC value is equal to or lower than a first threshold, the battery electric quantity monitoring display program module (119) drives a battery electric quantity display strip (43) to flash and enables a battery alarm buzzer to send out a prompt tone, and when the obtained ADC value is equal to or lower than a second threshold, the battery electric quantity monitoring display program module (119) drives a battery switch (19) to turn off a power supply;
In the method, the fourth step, before the video program module (114) is called according to the figure number, detects whether a TFT display screen is inserted in the output socket of the display screen, if not, the video program module (114) is called according to the figure number and does not display the TFT display screen;
In the method, after voice data is transmitted to the voice unit (14) for playing according to the figure number sounding program module (113), in the process of waiting for the next click, the reader sounding capture program module (115) stores the input voice of the reader for repeated reading in a temporary storage area of the external storage unit (12), and after the reader presses the repeated reading button (7), the reader sounding playback program module (116) drives the voice unit (14) to sound;
In the method, after the reader presses the repeated button (7) and the reader sounding playback program module (116) drives the voice unit (14) to sound, the reader sounding judgment program module (118) gives a judgment result to encourage the reader;
In the method, the circuit of the first step of the click-to-read unit (15) is connected to a page number click switch and each icon click switch of each page, wherein two leads of a main control single-chip microcomputer U1 connected with page number click switches Dy 1-Dy 16 are prepared to each page, and then are connected with two input pins of the main control single-chip microcomputer U1, and the two pins are internally provided with an ADC function;
meanwhile, 8 leads of the U1 connection icon click switches An 1-An 48 are prepared to each page, and then are connected with 8 input pins of the master control single-chip microcomputer U1, and the inside of the 8 pins has An ADC function;
In the method, two pins of the master control single-chip microcomputer U1 connected with the page clicking switches Dy 1-Dy 16 are connected with the page clicking switches Dy 1-Dy 8, the connection point potentials of the resistors R11-R18 and R1 are different in different connection, and after the page clicking program module (111) performs ADC conversion on the resistors, a table set in a conversion result data query program is searched for corresponding page numbers 1-8; the other connecting page number clicking switches Dy 9-Dy 16 are connected with different connecting point potentials of the resistors R21-R28 and the resistor R2, after the ADC conversion is carried out on the connecting point potentials by the page number clicking program module (111), the corresponding page numbers 9-16 are found according to a table established in a conversion result data inquiry program;
In the method, 8 pins of the master control single-chip microcomputer U1 connected with the icon click switches An 1-An 48 are respectively connected with resistors R31-R36 and R41-R48, the potentials of the connection points are different, an icon click program module (112) carries out ADC conversion on the resistors, and then corresponding figure numbers 1-48 are found according to a table established in a conversion result data query program;
in the method, a battery switch (19) is arranged in a battery charging unit (16) and is formed by a transistor Q11, the grid electrode of the transistor Q11 is connected with one pin of a master control singlechip U1, and the on and off of the transistor Q11 are determined by the pin; the other pin with ADC function inside the main control single chip microcomputer U1 is connected with the positive electrode of the battery BAT, the output voltage of the battery is detected, and when the output voltage of the battery is lower than a second threshold value, the battery output is turned off;
in the method, after one pin of the master control single-chip microcomputer U1 is connected with the resistor Rh, the pin is connected with HPOL of the voice chip U2, and when the earphone (3) is not connected, the pin of the master control single-chip microcomputer U1 inputs a high level; after the earphone (3) is inserted, the pin of the master control single-chip microcomputer U1 is grounded through an earphone coil, and the master control single-chip microcomputer U1 controls the loudspeaker (2) to be disconnected and the earphone (3) to be connected;
In the method, two pins of a main control single-chip microcomputer U1 connected with page click switches Dy 1-Dy 16 of a click-reading unit (15) have an ADC function, one pin is connected with page click switches Dy 1-Dy 8, the connection point potentials of the resistors R11-R18 and R1 are different in different connection, and after the page click program module (111) performs ADC conversion on the resistors, the corresponding page numbers 1-8 are found according to a table set in a conversion result data query program; the other connecting page number clicking switches Dy 9-Dy 16 are connected with different connection point potentials of the resistors R21-R28 and R2, after the ADC conversion is carried out on the resistors by the page number clicking program module (111), the corresponding page numbers 9-16 are found according to a table established in a conversion result data inquiry program;
In the method, 8 pins of the master control single-chip microcomputer U1 connected with the icon click switches An 1-An 48 have ADC functions, and in different connections of the resistors R31-R36 and the resistors R41-R48, the potentials of connection points are different, and after the icon click program module (112) performs ADC conversion on the connection points, corresponding figure numbers 1-48 are found according to a table established in a conversion result data query program;
The page numbers 9-16 and the figure numbers 1-48 form a search number;
in the method, the master control singlechip U1 selects STM32F103ZET6 with 144 pins;
in the method, the LD3320 selected by the voice chip U2 is packaged by QFN48, and the voice chip U2 limits a volume adjusting mechanism of the volume so as to avoid damage to hearing of infants;
10 pins of the main control single-chip microcomputer U1 form a click-reading keyboard, and the rest pins with ADC functions of STM32F103ZET6 are used for expanding the click-reading keyboard;
In the above method, the charging chip U4 is TC4056, and the charging current thereof is 1A.
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