WO2017107757A1

WO2017107757A1 - Early education machine system using cards

Info

Publication number: WO2017107757A1
Application number: PCT/CN2016/108463
Authority: WO
Inventors: 赵良华; 于悦; 钟诚
Original assignee: 大连新锐天地传媒有限公司
Priority date: 2015-12-21
Filing date: 2016-12-03
Publication date: 2017-06-29
Also published as: CN108352124A; CN105427688A

Abstract

A early education machine system using cards, comprising several cards, a recognition module, a processor, a voice chip, a power amplification chip and a loudspeaker, wherein the recognition module is connected to the processor; the processor is connected to the voice chip; the voice chip is connected to the power amplification chip; a memory is provided in the voice chip; and the cards comprise a recognition region (4) and a text region (3). The early education machine system using cards has high stability, is not disturbed by the environment and arouses the interest of children.

Description

Card early education machine system

Technical field

The invention relates to a card early education machine system, which belongs to the field of early education machines.

Background technique

In the early education machine currently used, LED card detection technology is often used to identify cards. Because the LED card detection technology has weak anti-interference ability to environmental factors (such as humidity, light and PCB surface ions), it may cause misidentification or unrecognizable cards. The new technology adopts two-dimensional code detection technology, but it is one-to-one correspondence identification. One two-dimensional code corresponds to a fixed set of information, which is not convenient for children to learn, and can not cause children's interest. The ordinary early education machine is one-to-one correspondence information. The card contains only the information for this card. The early education machine with spelling reading function is not available in the case of young children who are illiterate.

Summary of the invention

In view of the deficiencies of the prior art methods, the present invention provides a card early education machine system by encoding infrared recognition letters or other content, the encoding is specifically by emitting a fixed frequency infrared light, emitting a predetermined wavelength of infrared light, by adding a filter By setting the first position of the card position recognition area to a white strip, these four ways are combined to avoid misrecognition, and the position identification and the shift register are combined into word information or content information such as sentences, and the processor decodes and reads aloud. This method overcomes the defects of the original early education machine, and the recognition method is more accurate and safe. When the letters form the correct words, the words can be automatically recognized and read aloud, and the card information is no longer read one by one, or automatically when the preset content combination is correct. Recognize words or stories and read them aloud.

In order to achieve the above object, the technical solution adopted by the present invention is a card early education machine system, which comprises a plurality of cards, an identification module, a processor, a voice chip, a power amplifier chip and a speaker; the identification module is connected to the processor, and the processor is connected to the voice chip. The voice chip is connected to the power amplifier chip, and the power amplifier chip is connected to the speaker; the voice chip has a memory; the card includes an identification area and a text area.

The identification module includes an infrared pair tube array and a plurality of shift registers; the infrared pair tube array is composed of a plurality of sets of infrared pair tubes; each of the infrared pair tubes is composed of a plurality of pairs of infrared pair tubes.

Each of the cards corresponds to an infrared pair of tubes; the infrared pair tube is driven by a shift register connected to the single chip microcomputer.

The infrared pair tube includes an infrared light emitting tube and an infrared receiver; the front part of the infrared light emitting tube covers an infrared filter of 950 nm;

The infrared light tube selectively emits 950 nm infrared light.

The plurality of shift registers are cascaded for use; the shift register is 74HC165.

The identification area includes a content identification area and a location identification area.

The identification zone is arranged in stripes by a plurality of black bars and white bars.

The first bit identified by the location identification area is a white strip.

The processor is a single chip microcomputer, and the single chip microcomputer is STM32F103.

The card early education machine also includes a Bluetooth module.

Each of the card slots corresponds to an infrared pair tube group, and an infrared pair tube group represents a recognition area range, that is, a position on the card early education machine. If no card slot is set, the black and white area of the card position identification area is set. Corresponding to different infrared pair tube sets, the infrared receiving tube receives different infrared reflections in different positions on the early education machine.

The card machine identification process is: the infrared transmitting tube emits infrared light, and the emitted infrared light is transmitted through the shift register and input to the processor, and the infrared light tube current signal is controlled to be turned on and off, and the infrared light encounters After the card recognition area is reflected, the reflected infrared light signal is received through the infrared receiving tube, the optical signal is converted into an electrical signal, the electrical signal is transmitted to the serial device shift register for cascade use, and then serially output to the processor. The processor performs decoding judgment, and the determined card card content information is used to retrieve the corresponding content in the memory through the voice core, and then the contents of the card combination are read through the voice amplifier chip and the speaker.

The recognition uses infrared light reflection, and the black matt surface can absorb the infrared energy to the maximum extent, so that the infrared energy at the corresponding position will not be reflected to the receiving tube, the receiver can not receive the signal, and the white flat surface (the surface of the ordinary printed matter) That is, it is capable of greatly reflecting infrared rays, so that the corresponding infrared receiving tube can have an infrared receiving signal and can be recognized by the circuit system.

According to the black and white information on the card, the card information can be judged. In order to enhance the anti-interference ability, the emitted infrared light is encoded, and finally decoded by the processor, so that the interference of natural light and misoperation can be eliminated, and the coding method is By emitting infrared light with a fixed frequency of 950 nm, but by the luminous frequency of infrared light.

The infrared illuminator selects 950nm for the tube, and the energy of 950nm in natural light is not very strong, and we cover the 950nm infrared filter at the front end to filter the interference caused by natural light and illumination light.

The frequency of the infrared rays can be controlled by the single-chip microcomputer, so that the infrared light can be encoded to prevent misidentification.

The first position of the position recognition area is set to a white strip to prevent misrecognition.

The microprocessor is connected to the 74HC165's DATA, CS, CLK, ENABLE and other signals through the IO control to cascade the input and output of the 74HC165. The embedded program of the MCU performs a series of infrared pair tube identification signals through these ports. Identification.

After adopting the above method, the following beneficial effects are obtained compared with the prior art method: accurate and safe letter recognition side Children can freely combine letters, read words correctly when they are read, and cause children's interest in learning. It is also suitable for children who are young and illiterate. At the same time, this card has high accuracy and stability, no misunderstanding, no environmental interference, stability. High, can also be equipped with story cards, word cards, let children arbitrarily combine, read sentences or phrase allusions to read, trigger children's interest, and early education.

DRAWINGS

Figure 1 is a schematic diagram of the system hardware;

2 is a schematic view of a card identification area;

Figure 3 is a schematic view of the card;

4 is a flow chart of the principle of infrared array detection card.

In the figure: 1, the content recognition area, 2, the location identification area, 3, the text area of the card, 4, the identification area of the card.

detailed description

Example 1

The card early education system includes 8 sets of alphabet cards, each set has 26 letter cards and 38 story cards. The letter area of the letter card indicates letters and stories, and the card recognition is divided into a position recognition area and a content recognition area. When the identification is performed, each card to be identified corresponds to 6 pairs of infrared transceiver tubes, and the recognition range of each of the six infrared tube pairs is used as an identification area, and a total of 8 identification areas are divided, and each letter card needs to correspond to the pair. The independent identification area is placed, and the eight areas are fixed. The card early education machine is provided with eight card slot fixed cards. When used, the card is placed in the card slot, and the infrared transceiver tube is used to detect the information content on the card, first infrared The infrared transmitting tube in the transceiver tube emits infrared light at 950 nm, and is connected to the single chip STM32F103 through three 74HC165 cascades to control the on/off of the infrared light tube current signal, so as to achieve the purpose of controlling the frequency of the infrared light emission. Infrared light is emitted at a preset frequency to prevent interference. The card recognition area is black and white strips, black strips absorb infrared light, infrared receivers do not receive signals, white anti-infrared light, and infrared transceivers receive infrared receivers in tubes. To the signal reflected by the card recognition area, different black and white information represents different information, and the infrared receiver will light the signal. Turn into an electrical signal, and then pass the electrical signal to the serial device shift register cascade, and then serially output to the processor, the processor performs decoding judgment, and the determined card card content information is retrieved into the memory through the voice chip. Corresponding content, then read the letters or letters combined into the words and stories corresponding to the words and words through the voice amplifier chip and the speaker, and transmit the determined content information to the mobile phone or the pad via Bluetooth.

The eight infrared pairs of tubes correspond to the eight LED lights on the panel of the card early education system, which can have N, and N in Figure 1 takes 8. Each infrared pair tube group is composed of a plurality of pairs of infrared pair tubes, and six pairs in FIG. 1 are used, that is, six groups of infrared pair tubes. Eight cards are placed in use, eight pairs of tubes emit infrared light, corresponding to eight LED lights, and the receiving tube receives eight red pairs of tube groups that reflect light signals on the card.

Example 2

The card early education machine system includes 8 sets of word cards, each set has 256 word cards, the text area of the word card indicates basic words, and the card label part is divided into a position recognition area and a content recognition area. When the identification is performed, each card to be identified corresponds to 8 pairs of infrared transceiver tubes, and the recognition range of each of the eight infrared tube pairs is used as an identification area, and a total of 10 identification areas are divided, and each word card needs to correspond to the pair. The independent identification area is placed, and the ten areas are fixed. The card early education machine is provided with ten card slot fixed cards. When used, the card is placed in the card slot, and the infrared transceiver tube is used to detect the information content on the card, first infrared The infrared transmitting tube in the transceiver tube emits infrared light at 950 nm, and is connected to the single chip STM32F103 through three 74HC165 cascades to control the on/off of the infrared light tube current signal, so as to achieve the purpose of controlling the frequency of the infrared light emission. Infrared light is emitted at a preset frequency to prevent interference. The card recognition area is black and white strips, black strips absorb infrared light, infrared receivers do not receive signals, white anti-infrared light, and infrared transceivers receive infrared receivers in tubes. To the signal reflected by the card recognition area, different black and white information represents different word information, and the infrared receiver will light The signal is converted into an electrical signal, and then the electrical signal is passed to the serial device shift register for cascade use, and then serially output to the processor, the processor performs decoding judgment, and the determined card card content information is retrieved through the voice chip. In the corresponding content, the phrase or sentence formed by combining words or words is read out through the voice amplifier chip and the speaker, and the determined content information is transmitted to the mobile phone or the pad through Bluetooth.

Example 3

The card early education machine system includes 8 sets of alphabet cards, each set has 26 letter cards, the letter area of the letter card is marked with letters, the card identification is divided into a position recognition area and a content recognition area, and the position recognition area code is fixed for judging The current location of the card, the content identification area code is not fixed, but not the same as the location identification area. When the identification is performed, each card to be identified corresponds to 6 pairs of infrared transceiver tubes, and the recognition range of each of the six infrared tube pairs is used as an identification area, and a total of 8 identification areas are divided, and the positions of the eight areas are not fixed. The card is placed in the identification area of the card early education machine, and the infrared transceiver tube is used to detect the information content and position on the card. First, the infrared transmitting tube in the infrared transmitting and receiving tube emits infrared light at 950 nm, and passes through three 74HC165 cascades. To the single-chip STM32F103 to control the on/off of the infrared light tube current signal, to achieve the purpose of controlling the frequency of the infrared light emission, so that the infrared light is emitted at a preset frequency to prevent interference, the card recognition area is a black and white strip, and the black strip will Infrared light absorption, infrared receiver can not receive the signal, white anti-infrared light, the infrared receiver in the infrared transceiver receives the signal reflected by the letter card recognition area, and different black and white information represents different letter information and position information. The infrared receiver converts the optical signal into an electrical signal, and then transmits the electrical signal to the device shift register stage. Using, then serially outputting to the processor, the processor performs decoding judgment, and the determined card card content information is used to retrieve the corresponding content in the memory through the voice chip and identify the corresponding position, and then read the letter or the voice through the voice amplifier chip and the speaker. A word that is combined into letters and the determined content information is transmitted to the mobile phone or pad via Bluetooth.

Claims

The card early education machine system is characterized in that it comprises: a plurality of cards, an identification module, a processor, a voice chip, a power amplifier chip, and a speaker; the identification module is connected to the processor, the processor is connected to the voice chip, and the voice chip is connected to the power amplifier chip, and the power amplifier The chip is connected to the speaker; the voice chip has a memory; the card includes an identification area and a text area.
The card early education machine system according to claim 1, wherein said identification module comprises an infrared pair tube array and a plurality of shift registers; said infrared pair tube array is composed of a plurality of sets of infrared pair tube groups; said each The infrared pair tube group consists of several pairs of infrared pair tubes.
The card early education machine system according to claim 2, wherein each of said cards corresponds to an infrared pair of tubes; said infrared pair tube is driven by a shift register connected to the single chip microcomputer.
The card early education machine system according to claim 2, wherein the infrared ray tube comprises an infrared illuminating tube and an infrared receiver; the front portion of the infrared illuminating tube covers an infrared filter of 950 nm;

The infrared light tube was selected to be 950 nm.
The card early education machine system according to claim 1, wherein said plurality of shift registers are cascaded for use; said shift register is 74HC165.
The card early education machine system according to claim 1, wherein said identification area comprises a content recognition area and a position recognition area.
The card early education machine system according to claim 6, wherein the identification area is arranged in a strip by a plurality of black bars and white bars.
The card early education machine system according to claim 6, wherein the first position recognized by said position recognition area is a white strip.
The card early education machine system according to claim 1, wherein: said processor is a single chip microcomputer, said single chip microcomputer is STM32F103; said card early education machine further comprises a Bluetooth module; said card early education machine has a plurality of card slots, Each of the card slots corresponds to an infrared pair of tubes.
The card early education machine system according to claim 1, wherein the recognition process is: the infrared emission tube emits infrared light, and the emitted infrared light is transmitted through the shift register and input to the processor and is infrared. When the current signal of the light-emitting tube is controlled to be turned on and off, the infrared light is reflected by the card recognition area, and the reflected infrared light signal is received through the infrared receiving tube, and the optical signal is converted into an electrical signal, and the electrical signal is transmitted to the device. The shift register is cascaded and then serially output to the processor, and the processor performs decoding judgment, and the determined card card content information is used to retrieve the corresponding content in the memory through the voice core, and then the card combination is read through the voice amplifier chip and the speaker. Content.