CN110942684A - Electronic sounding reading material and point reading method - Google Patents
Electronic sounding reading material and point reading method Download PDFInfo
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- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
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- 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
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Abstract
The invention discloses an electronic sound reading material and a point reading method, which comprises a control system which is arranged on a circuit board in a base and mainly composed of a master control single-chip microcomputer U1, wherein a circuit of a point reading unit is connected to a page number click switch and each icon click switch of each page, a group of pins of a U1 are connected with a display screen output socket which is used for connecting a display unit, MICP and MICN pins of a voice chip U2 of the voice unit are connected with a microphone, HPOL and HPOR pins are connected with an earphone, and a battery charging unit monitors output voltage of BAT. The invention adopts STM32 series 32-bit microprocessors, realizes the touch reading of the keyboard by 12-bit ADC pins, has the functions of earphone and speaker switching, repeated reading, voice recognition and intelligent charging, has the function of touch buttons on a TFT display screen, and has the maximum volume limit on volume control buttons, thereby avoiding the hearing loss of infants.
Description
Technical Field
The invention relates to the field of electronic sound reading materials, in particular to a point reading method of an electronic sound reading material.
Background
With the popularization of electronic sound reading materials, more and more parents buy the electronic sound reading materials for children to inspire the ability of the children to read, learn characters and produce sound by pictures.
The electronic sounding reading materials in the prior art have single functions, do not have the functions of earphone and loudspeaker switching, repeated reading, voice recognition and intelligent charging, and cause inconvenience 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 functions of earphone and speaker switching, repeated reading, voice recognition and intelligent charging and a point reading method.
In order to achieve the purpose, the invention adopts the following technical scheme:
implementing an electronic sound reading and a click-to-read method, the method comprising:
firstly, arranging a circuit board in a base of an electronic sound reading material, wherein a control system mainly composed of a main control single-chip microcomputer U1 is installed 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 point reading unit, a battery charging unit, a detection earphone insertion unit and a battery management unit; the circuit of the click-to-read unit is connected to a page click switch and each icon click switch of each page, a group of pins of the main control single-chip microcomputer U1 is connected with a display screen output socket which is used for connecting a 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 of the main control single-chip microcomputer U1 is led out from the pins to monitor the output voltage of the BAT;
secondly, a page number clicking program module, an icon clicking program module, a sound production program module according to a figure number, a video program module called according to the figure number, a reader sound production capturing program module, a reader sound production playback program module, an earphone speaker switching program module, a reader sound production judging program module, a battery electric quantity monitoring display program module and a battery alarm program module are loaded in a main control program memory of a main control single chip microcomputer U1, and instructions of the program modules are suitable for being loaded and executed by a main control processor;
thirdly, after the reader opens the electronic sound reading, clicking a page number click switch by using a click pen, then clicking an icon click switch by using the click pen, judging a current page number by using a page number click program module according to an ADC (analog to digital converter) value obtained by a page number ADC (analog to digital converter) circuit, judging a current icon by using an icon click program module according to the ADC value obtained by an icon ADC circuit, and combining the page number and the icon code into a two-byte retrieval code;
fourthly, calling a video program module according to the picture number and transmitting the voice data and the video data from an external storage unit to a voice unit and a display unit respectively for playing according to the picture number and the sound production program module and the picture number;
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 a battery monitoring pin in real time for ADC conversion, two threshold values are set in the program, when the obtained ADC value is equal to or lower than the first threshold value, the battery electric quantity monitoring display program module drives a battery electric quantity display strip to flicker and enables a battery alarm buzzer to send out a prompt tone, and when the obtained ADC value is equal to or lower than the second threshold value, the battery electric quantity monitoring display program module drives a battery switch to turn off the power supply.
In the method, the fourth step calls the video program module according to the picture number before calling the video data, and detects whether the TFT display screen is inserted at the output socket of the display screen, and if the TFT display screen is not inserted, calls the video program module according to the picture number to not display the video data.
In the method, after the sound production program module transmits the voice data to the voice unit for playing according to the figure number, in the process of waiting for next click-reading, the reader sound production capture program module records the voice which is read again by the reader and stores the voice in the temporary storage area of the external storage unit, and after the reader presses the repeat button, the reader sound production playback program module drives the voice unit to produce sound.
In the method, the reader presses the repeated reading button, and after the reader phonation playback program module drives the voice unit to phonate, the reader phonation evaluation program module gives an evaluation result to encourage the reader.
In the method, in the first step, the circuit of the click-to-read unit is connected to the page click switch and each icon click switch of each page, two lead wires of U1 connected with the page click switches Dy 1-Dy 16 are prepared to each page, and then the two lead wires are connected with two input pins of U1, and the two pins have ADC functions;
in the method, simultaneously, 8 leads of the U1 connected with the icon click switches An 1-An 48 are prepared to each page, and then 8 input pins of the U1 are connected, wherein the 8 pins have ADC functions.
In the method, two pins of U1 connected with Dy 1-Dy 16 are connected with Dy 1-Dy 8, one pin is connected with Dy 1-Dy 1, in different connections of resistors R11-R18 and R1, the connection point potentials are different, after ADC conversion is carried out on the pins by a page clicking program module, a table set in a program is inquired according to conversion result data, and corresponding page numbers 1-8 are found; the other one is connected with Dy 9-Dy 16, the potential of the connection point is different in different connections of resistors R21-R28 and R2, after the page number clicking program module carries out ADC conversion on the resistors, a table set in a program is inquired according to conversion result data, and the corresponding page numbers 9-16 are found;
in the method, the 8 pins of the U1 connected to An 1-An 48 have different connection point potentials in different connections of the resistors R31-R36 and R41-R48, and after the icon clicking program module performs ADC conversion on the pins, the corresponding graph numbers 1-48 are found by querying a table set in a program according to conversion result data.
Designing and manufacturing an electronic sound reading material, comprising: a circuit board in the base is provided with a control system mainly composed of a main control single-chip microcomputer U1, and a U1 is connected with a download unit, an external storage unit, a display unit, a voice unit, a click-to-read unit, a battery charging unit, a detection earphone insertion unit and a battery management unit; the circuit of the click-to-read unit is connected to a page click switch and each icon click switch of each page, a group of pins of U1 is connected with a display screen output socket which is used for connecting a display unit, a MICP pin and a MICN pin of a voice chip U2 of the voice unit are connected with a microphone, an SPOP pin and an SPON pin of U2 are connected with a loudspeaker, an HPOL pin and an HPOR pin of U2 are connected with an earphone, a fifth pin of a charging chip of the battery charging unit is connected with a battery BAT, and meanwhile, a battery monitoring pin of a main control single-chip microcomputer U1 is led out from the pins to monitor the output voltage of the BAT.
A battery switch is arranged in the battery charging unit and is composed of a field effect transistor, the grid electrode of the battery switch is connected with one pin of the main control single-chip microcomputer U1, and the on and off of the field effect transistor are determined by the pin; the other pin of the U1 with the ADC function is connected to the positive electrode of the battery BAT, detects the output voltage of the battery, and turns off the battery output when the output voltage of the battery is lower than the second threshold.
One pin of the master control single chip microcomputer U1 is connected with the resistor Rh and then connected with the HPOL of U2, and when the earphone is not connected, the pin of U1 inputs high level; when the earphone is inserted, the pin of the U1 is grounded through the earphone coil, and the main control single-chip microcomputer U1 controls the loudspeaker to be switched off and the earphone to be switched on.
Two pins of U1 connected with page clicking switches Dy 1-Dy 16 of the point reading unit have ADC functions, one pin is connected with Dy 1-Dy 8, the potentials of connecting points of resistors R11-R18 and R1 are different, a page clicking program module carries out ADC conversion on the resistors, and then a table set in a program is inquired according to conversion result data to find out corresponding pages 1-8; the other one is connected with Dy 9-Dy 16, the potential of the connection point is different in different connections of resistors R21-R28 and R2, after the page number clicking program module carries out ADC conversion on the resistors, a table set in a program is inquired according to conversion result data, and the corresponding page numbers 9-16 are found;
8 pins of U1 connected with the icon click switches An 1-An 48 have ADC functions, the connection point potentials of the resistors R31-R36 and R41-R48 are different, and after the icon click program module performs ADC conversion on the resistors, tables set in a program are inquired according to conversion result data, and corresponding graph numbers 1-48 are found;
the page numbers 9-16 and the figure numbers 1-48 form a retrieval code.
The invention has the beneficial effects that: by adopting a high-speed, energy-saving and powerful STM32 series 32-bit microprocessor and utilizing the precise conversion of a 12-bit ADC pin in the point reading method design, the point reading of 16 pages of electronic sound readings can be realized, and an identification pin can be added if the point reading is required to be expanded, wherein the occupied resources are less, the resolution is high; 48 icons can be designed for point reading for each page of electronic sound reading, the earphone has the functions of earphone and 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 reading material with sound production and a point reading method according to the present invention;
fig. 2 is a schematic view of the electronic reading material with a right view in the right direction according to the electronic reading material and the touch reading method of the present invention, which mainly shows various operating components on the right side of the base, wherein there is a socket of the display unit 13, the TFT display screen of the display unit has a touch button function, a volume control button can be set at the socket, the volume control has a maximum volume limit, and the hearing of the infant is prevented from being damaged;
fig. 3 is a schematic view of the direction of the front view of the electronic sound reading material according to the electronic sound reading material and the touch reading method of the present invention, which mainly shows various operation components in the front view direction of the base;
fig. 4 is a circuit diagram of a main control single chip microcomputer U1 according to the electronic reading material and the point reading method, and is also equal to a block diagram of a control system formed by the circuit diagram;
FIG. 5 is a schematic diagram of the phonetic unit 14 involved in the electronic sound reading and the method of touch reading of the present invention;
fig. 6 is a schematic view of the reading unit 15 according to the electronic reading material and the reading method;
FIG. 7 is a schematic view of a battery charging unit 16 according to the electronic reading and the method of reading;
fig. 8 is a schematic diagram of various program modules involved in the electronic reading and reading method of the present invention.
Detailed Description
The technical solution of the present invention is further explained by the best mode in the following with the attached drawings.
As shown in fig. 1 to 8, a method for implementing an electronic reading and a point reading includes:
firstly, arranging a circuit board in a base of the electronic sound reading matter 1, wherein a control system mainly composed of a main control single-chip microcomputer U1 is installed 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 point reading unit 15, a battery charging unit 16, a detection earphone insertion unit 17 and a battery management unit 18; the circuit of the click-to-read unit 15 is connected to a page click switch and each icon click switch of each page, a group of pins of the main control single-chip microcomputer U1 is connected with the display screen output socket 8, the display screen output socket 8 is used for connecting 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, 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 of the main control single-chip microcomputer U1 is led out from the pins to monitor the output voltage of the BAT;
secondly, loading a page number clicking program module 111, an icon clicking program module 112, a sound-producing program module 113 according to a figure number, a video program module 114 called according to the figure number, a reader sound-producing capturing program module 115, a reader sound-producing playback program module 116, an earphone speaker switching program module 117, a reader sound-producing judging program module 118, a battery power monitoring display program module 119 and a battery alarm program module 120 in a main control program storage 20 of a main control single-chip microcomputer U1, wherein 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 sound reading 1, clicking a page number click switch by using a click pen, then clicking an icon click switch by using the click pen, judging a current page number by using a page number click program module 111 according to an ADC (analog to digital converter) value obtained by a page number ADC (analog to digital converter) circuit, judging a current icon by using an icon click program module 112 according to the ADC value obtained by an icon ADC circuit, and combining the page number and the icon code into a two-byte retrieval code;
fourthly, according to the figure number, the sound production program module 113 and the figure number calling video program module 114 transmit the voice data and the video data from the external storage unit 12 to the voice unit 14 and the display unit 13 respectively for playing according to the retrieval code;
fifthly, in the whole point reading 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 a battery monitoring pin in real time for ADC conversion, two threshold values are set in the program, when the obtained ADC value is equal to or lower than the first threshold value, the battery power monitoring display program module 119 drives the battery power display bar 43 to flicker and enables the battery alarm buzzer to give out prompt tone, and when the obtained ADC value is equal to or lower than the second threshold value, 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, the video program module 114 is called according to the figure number, before calling the video data, it is already detected whether the TFT display screen is inserted at the display screen output socket 8, and if no TFT display screen is inserted, the video program module 114 is called according to the figure number to perform no display.
In the above method, in the fourth step, after the sound production program module 113 transmits the voice data to the voice unit 14 for playing, in the process of waiting for the next click-to-read, the reader sound production capture program module 115 records the voice which is repeatedly read by the reader, stores the voice in the temporary storage area of the external storage unit 12, and after the reader presses the repeat button 7, the reader sound production playback program module 116 drives the voice unit 14 to produce a sound.
In the above method, the reader presses the repeat button 7, and after the reader voice playback program module 116 drives the voice unit 14 to make a voice, the reader voice evaluation program module 118 gives the 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 connecting the U1 with the page click switches Dy1 to Dy16 are prepared to each page, and then connected with two input pins of the U1, and the two pins have ADC functions inside;
meanwhile, the U1 is connected with 8 leads of the icon click switches An 1-An 48 and prepared to each page, and then is connected with 8 input pins of the U1, and the 8 pins have ADC functions inside.
In the method, two pins of U1 connected with Dy 1-Dy 16 are connected with Dy 1-Dy 8, one pin is connected with Dy 1-Dy 1, in different connections of resistors R11-R18 and R1, the connection point potentials are different, after ADC conversion is carried out on the pins by the page click program module 111, a table set in a program is inquired according to conversion result data, and corresponding page numbers 1-8 are found; the other one is connected with Dy 9-Dy 16, the potential of the connection point is different in different connections of resistors R21-R28 and R2, after the page number clicking program module 111 carries out ADC conversion on the connection point, a table set in a program is inquired according to conversion result data, and the corresponding page numbers 9-16 are found;
in the above method, the 8 pins of U1 connected to An 1-An 48 have different connection point potentials in different connections of resistors R31-R36 and R41-R48, and after the icon clicking program module 112 performs ADC conversion on the pins, the table set in the program is queried according to the conversion result data to find out the corresponding numbers 1-48.
An electronic sound reading material 1 according to a preferred embodiment, comprising: a circuit board in the base is provided with a control system mainly composed of a main control single-chip microcomputer U1, and a U1 is connected with a download unit 11, an external storage unit 12, a display unit 13, a voice unit 14, a point reading unit 15, a battery charging unit 16, a detection earphone insertion unit 17 and a battery management unit 18; the circuit of the click-to-read unit 15 is connected to the page click switch and each icon click switch of each page, a group of pins of U1 is connected to the display screen output socket 8, the display screen output socket 8 is used for connecting the display unit 13, the MICP and MICN pins of the voice chip U2 of the voice unit 14 are connected to the microphone 9, the SPOP and SPON pins of U2 are connected to the loudspeaker 2, the HPOL and HPOR pins of U2 are connected to the earphone 3, the fifth pin of the charging chip U4 of the battery charging unit 16 is connected to the battery BAT, and meanwhile, the battery monitoring pin of the main control single-chip microcomputer U1 is connected from the pins to monitor the output voltage of the BAT.
The battery charging unit 16 is provided with a battery switch 19 which is composed of a transistor Q11, the grid of the Q11 is connected with one pin of a master control single-chip microcomputer U1, and the on and off of the Q11 are determined by the pin; the other pin of the U1 with the ADC function is connected to the positive electrode of the battery BAT, detects the output voltage of the battery, and turns off the battery output when the output voltage of the battery is lower than the second threshold.
One pin of the master control single chip microcomputer U1 is connected with the resistor Rh and then connected with the HPOL of U2, and when the earphone 9 is not accessed, the pin of U1 inputs high level; when the earphone 9 is inserted, the pin of the U1 is grounded through the earphone coil, and the main control single-chip microcomputer U1 controls to turn off the speaker 8 and turn on the earphone 9.
Two pins of U1 connected with page clicking switches Dy 1-Dy 16 of the point reading unit 15 have ADC functions, one pin is connected with Dy 1-Dy 8, the potentials of connecting points of resistors R11-R18 and R1 are different, and after ADC conversion is carried out on the resistors, a page clicking program module 111 inquires tables set in a program according to conversion result data to find corresponding pages 1-8; the other one is connected with Dy 9-Dy 16, the potential of the connection point is different in different connections of resistors R21-R28 and R2, after the page number clicking program module 111 carries out ADC conversion on the connection point, a table set in a program is inquired according to conversion result data, and the corresponding page numbers 9-16 are found;
8 pins of U1 connected with the icon click switches An 1-An 48 have ADC functions, the connection point potentials of resistors R31-R36 and R41-R48 are different, and after the icon click program module 112 performs ADC conversion on the resistors, tables set in a program are inquired according to conversion result data, and corresponding graph numbers 1-48 are found;
the page numbers 9-16 and the figure numbers 1-48 form a retrieval code.
As shown in fig. 4, STM32F103ZET is 144 pins, embedding 3 12-bit analog/digital converters, each sharing up to 21 external ADC channels. STM32F103ZET maximum working frequency 72MHz, 2.0 ~ 3.6V mains operated and the drive voltage of I/O interface. Up to 112 fast I/O ports are optional and up to 13 communication interfaces are optional.
As shown in fig. 5, LD3320 is packaged by QFN48, and is often manufactured into a 40-pin module for convenient insertion into other PCB circuit boards when in use, and the chip has a speaker and earphone volume adjustment function, which is not shown in the present invention.
As shown in FIG. 6, the 10 pins of U1 in the preferred embodiment all have ADC function, and they constitute a click-to-read keyboard, which can be expanded because STM32F103ZET has many pins with ADC function and idle.
As shown in fig. 7, the charging current of U4 is TC4056, which can reach 1A, the RSD on-resistance of the field effect transistor Q11 when turned on is only tens of milliohms, the voltage drop is small, and the heat generation of the field effect transistor is small because the electric reading current of the present invention is small.
The above description is only a preferred embodiment of the present invention, and the present invention should not be limited by the above description, which should be interpreted as limiting the scope of the present invention, since the person skilled in the art can change the invention in the details of the embodiment and the range of applications according to the spirit of the present invention.
Claims (10)
1. A method for reading electronically sounding readings, the method comprising:
firstly, arranging a circuit board in a base of an electronic sound reading material (1), wherein a control system mainly composed of a main control single-chip microcomputer U1 is installed 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 point reading unit (15), a battery charging unit (16), a detection earphone insertion unit (17) and a battery management unit (18); the circuit of the point reading unit (15) is connected to a page number click switch and each icon click switch of each page, a 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 the 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 the battery charging unit (16) is connected with a battery BAT, and meanwhile, a battery monitoring pin of the main control single-chip microcomputer U1 is connected from the pins to monitor output voltage of the BAT;
secondly, loading a page number clicking program module (111), an icon clicking program module (112), a sound production program module according to a figure number (113), a video program module according to the figure number (114), a reader sound production capture program module (115), a reader sound production replay program module (116), an earphone speaker switching program module (117), a reader sound production judgment program module (118), a battery power monitoring display program module (119) and a battery alarm program module (120) in a main control program memory (20) of a main control single-chip microcomputer U1, wherein 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 sound reading (1), clicking a page number click switch by using a click pen, then clicking an icon click switch by using the click pen, judging a current page number by using a page number click program module (111) according to an ADC (analog to digital) value obtained by a page number ADC (analog to digital converter) circuit, judging a current icon by using an icon click program module (112) according to the ADC value obtained by the icon ADC circuit, and combining the page number and the icon code into a two-byte retrieval code;
fourthly, calling a video program module (114) according to the picture number and the sound production program module (113) and the picture number and transmitting the voice data and the video data from the external storage unit (12) to the voice unit (14) and the display unit (13) respectively for playing according to the retrieval code;
fifthly, in the whole point reading process, the battery management unit (18) always monitors the terminal voltage of the battery BAT, the battery electric quantity monitoring display program module (119) introduces the battery voltage into a battery monitoring pin in real time for ADC conversion, two threshold values are set in the program, when the obtained ADC value is equal to or lower than the first threshold value, the battery electric quantity monitoring display program module (119) drives the battery electric quantity display bar (43) to flicker and enables the battery alarm buzzer to send out prompt tones, and when the obtained ADC value is equal to or lower than the second threshold value, the battery electric quantity monitoring display program module (119) drives the battery switch (19) to turn off the power supply.
2. The method of claim 1, wherein in the fourth step said calling video program module (114) according to the figure number detects whether a TFT display is inserted at the display output socket (8) before calling video data, and calls the video program module (114) according to the figure number to not display if no TFT display is inserted.
3. The method for reading electronic sound reading according to claim 1, wherein in the fourth step, after the sound production program module (113) transmits the voice data to the voice unit (14) according to the figure number for playing, in the process of waiting for the next reading, the reader sound production capture program module (115) records the voice which is repeatedly read by the reader, the voice is stored in the temporary storage area of the external storage unit (12), and after the reader presses the repeat reading button (7), the reader sound production playback program module (116) drives the voice unit (14) to produce sound.
4. The method for reading the electronic phonation reading matter according to the claim 3, wherein the reader presses the repeating button (7), after the reader phonation playback program module (116) drives the voice unit (14) to phonate, the reader phonation judging program module (118) gives the judging result to encourage the reader.
5. The method for reading with electronic sound reading matter according to claim 1, characterized in that in the first step, the circuit of the reading unit (15) is connected to the page click switch and the icon click switch of each page, two leads of U1 connecting the page click switches Dy 1-Dy 16 are prepared to each page, and then two input pins of U1 are connected, and the two pins have ADC function inside;
meanwhile, the U1 is connected with 8 leads of the icon click switches An 1-An 48 and prepared to each page, and then is connected with 8 input pins of the U1, and the 8 pins have ADC functions inside.
6. The method for point reading of electronic sound reading materials as claimed in claim 5, wherein two pins of U1 connected with Dy 1-Dy 16, one pin is connected with Dy 1-Dy 8, the connecting point potentials of resistors R11-R18 and R1 are different, after ADC conversion is carried out on the resistors by the page click program module (111), the corresponding pages 1-8 are found according to the table set in the conversion result data query program; the other one is connected with Dy 9-Dy 16, the potential of the connection point is different in different connections of resistors R21-R28 and R2, after the page number clicking program module (111) carries out ADC conversion on the resistors, a table set in a program is inquired according to conversion result data, and corresponding page numbers 9-16 are found;
the 8 pins of U1 connected with An 1-An 48 have different connecting point potentials in different connections of resistors R31-R36 and R41-R48, and after the ADC conversion is performed on the pins by An icon clicking program module (112), a table set in a program is inquired according to conversion result data, and corresponding graph numbers 1-48 are found.
7. An electronic sound reading (1), characterized in that it comprises: a circuit board in the base is provided with a control system mainly composed of a main control single-chip microcomputer U1, and a U1 is connected with a download unit (11), an external storage unit (12), a display unit (13), a voice unit (14), a point reading unit (15), a battery charging unit (16), a detection earphone insertion unit (17) and a battery management unit (18); the circuit of the click-to-read unit (15) is connected to a page click switch and each icon click switch of each page, a group of pins of a U1 is 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 the voice unit (14) are connected with a microphone (9), SPOP and SPON pins of a U2 are connected with a loudspeaker (2), HPOL and HPOR pins of a U2 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 of a main control single-chip microcomputer U1 is led out from the pin to monitor output voltage of the BAT.
8. An electronic sound reading according to claim 7,
the battery charging unit (16) is internally provided with a battery switch (19) which is composed of a transistor Q11, the grid electrode of Q11 is connected with one pin of a master control single-chip microcomputer U1, and the on and off of Q11 are determined by the pin; the other pin of the U1 with the ADC function is connected to the positive electrode of the battery BAT, detects the output voltage of the battery, and turns off the battery output when the output voltage of the battery is lower than the second threshold.
9. The electronic sound reading material according to claim 7, wherein a pin of the master control single-chip microcomputer U1 is connected with a resistor Rh and then connected with the HPOL of U2, and when the earphone (9) is not connected, the pin of U1 inputs high level; after the earphone (9) is inserted, the pin of the U1 is grounded through an earphone coil, and the main control single-chip microcomputer U1 controls the loudspeaker (8) to be switched off and the earphone (9) to be switched on.
10. An electronic sound reading according to claim 7,
two pins of U1 connected with page clicking switches Dy 1-Dy 16 of the point reading unit (15) have ADC functions, one pin is connected with Dy 1-Dy 8, the connecting point potentials of resistors R11-R18 and R1 are different, and after ADC conversion is carried out on the resistors by a page clicking program module (111), a table set in a program is inquired according to conversion result data, and corresponding pages 1-8 are found; the other one is connected with Dy 9-Dy 16, the potential of the connection point is different in different connections of resistors R21-R28 and R2, after the page number clicking program module (111) carries out ADC conversion on the resistors, a table set in a program is inquired according to conversion result data, and corresponding page numbers 9-16 are found;
8 pins of U1 connected with the icon click switches An 1-An 48 have ADC functions, the connection point potentials of the resistors R31-R36 and R41-R48 are different, and after the icon click program module (112) performs ADC conversion on the resistors, tables set in a program are inquired according to conversion result data, and corresponding graph numbers 1-48 are found;
the page numbers 9-16 and the figure numbers 1-48 form a retrieval code.
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