II
Interactive speech recognition and control system Abstract:In
recent yearswith the development trend of embedded and
Interne
t of things, it's becoming more and more popular. But the simple
man-machine
interface interaction is obviously far from meeting the need for
intellectualizati
on. On this basis, the interactive voice recognition that meets the
requirements
of the intelligent equipment comes into being.
In this article, STM32 single chip microcomputer and STC11L08XE
single
chip microcomputer are used to communicate.In this design, each of
the two si
ngle-chip microcomputer has its own division of
labor.Thereinto,STM32 single
chip microcomputer mainly realizes the acquisition of coded data,
so as to cont
rol the main logic and function of the system. The other STC11
single chip m
icrocomputer mainly realizes the speech analog data analysis, the
processing, th
e conversion.In addition,this design is using the LD3320 to obtain
the voice si
mulation data amount.The ASR-AI algorithm also is used for pinyin
recognition
of speech conversion, and the digital quantity converted into
analog quantity i
s obtained.By compression of the digital quantity, the digital
compression can b
e transmitted. Of course,with the above process, an interactive
voice recognition
and control system is produced.The first level instruction of voice
data will b
e realized, and the corresponding speech function will be executed
after the se
cond instruction is received successfully.The corresponding
functions are: make
phone calls, send text messages, control lamp switches, control
water heaters a
nd other commonly used household appliances.If the primary
instruction or the
secondary instruction receives an error, the system also
automatically prompts
for the corresponding error.Due to the large interference of
external noise to th
e voice module, the recognition sensitivity of the voice system is
not high, an
d the voice distance can be adjusted manually as an external input
quantity on
the subsequent design.
equipment; Double-machine communication.
2.3 ............................................ 8 3
..................................................... 9
3.1 STM32F103C8T6 ..................................... 9 3.2
LD3320 .................................... 10 3.3 OLED
............................................... 11 3.4 JQ8400
........................................ 12 3.5 GSM/GPRS
............................................. 12 3.6 DHT11
.......................................... 13 3.7 RGB
..................................... 14 3.8
............................................... 14
4 .................................................... 15 4.1
............................................... 15
4.1.1 .......................................... 15 4.1.2
.......................................... 17
4.2 ........................................... 18 4.3
............................................... 19
4.3.1 .................................... 19 4.3.2 ASR
...................................... 19 4.3.3
........................................ 20 4.3.4
...................................... 20
5 .................................................... 21 5.1
........................................... 21 5.2
........................................... 22
5.2.1 ........................................ 22 5.2.2
...................................... 22 5.2.3
.......................................... 23
6 ............................................................ 24
.......................................................... 25
..............................................................
26
........................................ 26 STM32
........................... 32 LD3320 ..........................
38
..............................................................
43