CN203149885U - English word automatic correcting device - Google Patents

Abstract

The automatic correcting device for English words belongs to the field of English education. The utility model aims to solve the problem of assessing the vocabulary level of each student. The number of students is huge, and the workload of correcting is highly repetitive. Therefore, the repetitive workload is very large and takes up a lot of precious time of the teacher. A matter of time. The utility model scheme: the switch circuit outputs the switching instruction, controls the start-up end of the video acquisition device through the processor; the word information output end of the video acquisition device is connected with the analog signal input end of the A/D conversion circuit, and the A/D conversion circuit The digital signal output end is connected with the input end of the OCR recognition unit, the English word recognition signal output end of the OCR recognition unit is connected with the English word recognition signal input end of the processor; the display signal output end of the processor is connected with the display signal input end of the monitor ; The word query input and output terminals of the processor are connected with the input and output terminals of the word bank; the DC power supply and the AC/DC conversion circuit provide two power supply modes for the processor.

Description

English word automatic corrector

technical field

The utility model relates to an automatic correcting device for English words, which belongs to the field of English education.

Background technique

English education runs through our entire study life at school, and even at work. Therefore, English teaching is an important part of English learning. In the English teaching class of the school, the teacher spends a lot of time assessing the students' mastery of English words, so that Students write English words silently and make corrections to assess each student's vocabulary level. The workload of the manual correction process is very large, the number of students is large, and the correction workload is highly repetitive, so the repetitive workload is very large and takes up A lot of precious time of the teacher.

Contents of the invention

The purpose of the utility model is to solve the problem of assessing the vocabulary level of each student, the number of students is huge, and the workload of correcting is highly repetitive, so the repetitive workload is very large and takes up a lot of precious time of the teacher. Corrector.

The automatic correcting device for English words described in the utility model includes a processor, a video acquisition device, an A/D conversion circuit, an OCR recognition unit, a DC power supply, an AC/DC conversion circuit, a display, a vocabulary bank and a switch circuit,

The switch instruction output end of the switch circuit is connected with the switch instruction input end of the processor, and the acquisition instruction output end of the processor is connected with the enable end of the video acquisition device;

The word information output end of the video acquisition device is connected with the analog signal input end of the A/D conversion circuit, the digital signal output end of the A/D conversion circuit is connected with the input end of the OCR recognition unit, and the English word recognition signal output end of the OCR recognition unit It is connected with the input terminal of the English word recognition signal of the processor;

The display signal output end of the processor is connected with the display signal input end of the monitor;

The word query input and output terminals of the processor are connected with the input and output terminals of the word library;

The DC voltage signal output terminal of the DC power supply is connected to the first power supply terminal of the processor;

The DC voltage signal output terminal of the AC/DC conversion circuit is connected with the second power supply terminal of the processor.

The utility model has the advantages: the English word automatic correcting device described in the utility model is easy to carry, flexible to use, can complete the automatic correction of English words in batches, reduces the repetitive workload of the English teacher, and saves precious time for more important work , greatly improving work efficiency.

Description of drawings

Fig. 1 is the functional block diagram of the English word automatic correcting device described in the utility model.

Detailed ways

Specific embodiment one: below in conjunction with Fig. 1 illustrate present embodiment, the English word automatic correcting device described in present embodiment, it comprises processor 1, video acquisition device 2, A/D conversion circuit 3, OCR identification unit 4, DC power supply 5, AC/DC conversion circuit 6, display 7, vocabulary 8 and switch circuit 9,

The switching instruction output end of the switch circuit 9 is connected with the switching instruction input end of the processor 1, and the collection instruction output end of the processor 1 is connected with the beginning energy end of the video acquisition device 2;

The word information output end of video acquisition device 2 is connected with the analog signal input end of A/D conversion circuit 3, and the digital signal output end of A/D conversion circuit 3 is connected with the input end of OCR recognition unit 4, and the English of OCR recognition unit 4 The word recognition signal output end links to each other with the English word recognition signal input end of processor 1;

The display signal output end of processor 1 is connected with the display signal input end of display 7;

The word query input and output of processor 1 is connected with the input and output of vocabulary bank 8;

The DC voltage signal output terminal of the DC power supply 5 is connected to the first power supply terminal of the processor 1;

The DC voltage signal output terminal of the AC/DC conversion circuit 6 is connected to the second power supply terminal of the processor 1 .

Processor 1 is realized by single-chip microcomputer, PC or FPGA. Video acquisition device 2 is installed on the front end of single-chip microcomputer, PC machine or FPGA, and switch circuit 9 controls the switch of this device, and when switch circuit 9 controls it to open, open instruction to processor 1, processor 1 makes video acquisition device 2 start, Video collection device 2 collects the word of silent writing of the student, and the image information of this word is recognized as word information by OCR recognition unit 4, sends to processor 1, and processor 1 in word bank 8 and the teacher's pre-arranged dictation word bank The words are compared, the words written silently by the students are recognized, the correctness is judged, and the scores are given. The results are displayed on the display 7, and the automatic word correction is completed, which greatly reduces the repetitive workload of the teacher.

The English word automatic correcting device described in this embodiment has two kinds of power supply modes, and a kind of is to directly adopt DC power supply 5, such as lithium battery; Another kind is to adopt AC power supply, and AC power supply is converted into DC power supply through AC/DC conversion circuit 6 , flexible power supply.

Embodiment 2: This embodiment further describes Embodiment 1. It also includes a keyboard 10 , and the external command output end of the keyboard 10 is connected to the external command input end of the processor 1 .

Claims (3)

1. English word automatic correcting device is characterized in that, it comprises processor (1), video acquisition device (2), A/D conversion circuit (3), OCR recognition unit (4), DC power supply (5), AC /DC conversion circuit (6), display (7), vocabulary (8) and switch circuit (9), The switch instruction output end of the switch circuit (9) is connected with the switch instruction input end of the processor (1), and the acquisition instruction output end of the processor (1) is connected with the enable end of the video acquisition device (2); The word information output end of the video acquisition device (2) is connected with the analog signal input end of the A/D conversion circuit (3), and the digital signal output end of the A/D conversion circuit (3) is connected with the input end of the OCR identification unit (4) Connected, the English word recognition signal output end of OCR recognition unit (4) is connected with the English word recognition signal input end of processor (1); The display signal output end of the processor (1) is connected with the display signal input end of the monitor (7); The word query input and output terminals of processor (1) are connected with the input and output terminals of word storehouse (8); The DC voltage signal output terminal of the DC power supply (5) is connected to the first power supply terminal of the processor (1); The DC voltage signal output terminal of the AC/DC conversion circuit (6) is connected with the second power supply terminal of the processor (1). 2. according to the described English word correcting device of claim 1, it is characterized in that processor (1) adopts single-chip microcomputer, PC or FPGA to realize. 3. according to claim 1 and 2 described automatic correcting devices for English words, it is characterized in that, it also comprises keyboard (10), and the external command output end of keyboard (10) links to each other with the external command input end of processor (1).