Development Technology for
Applied PIC Series Microcontrollers System
PIC series microcontrollers are widely used in the fields of
instruments, motor, industrial control, consumer electronics etc,
because of its low price, low power, high speed, multi-breed etc.
I went further into PIC system construction and software design,
succeeded in finishing over ten projects about medical treatment,
industrial control, electric power etc, finished many kinds of
serial, parallel communication agreements about high-frequency
PLL interface etc, and trained an exemplary breed of technical
personnel for PIC microcontrollers engineering.
At present, we owned special PIC labs, 50 sets of full series
Real-time PIC Microcontrollers development systems and a breed
of professional developing hardware and software who can supply
good technical support to an individual and enterprises
Principles And Application System Designed For PIC Series Microcontrollers
written by me will be published by Publishing House of Electronics
Industry and is worthy of reference, for it includes over ten
typical design instances.
Professional Sound, Light, Karaok
We own a breed of advanced equipment for professional sound at
home and aboard, such as electric audio test instrument and digital
recording mixer, digital audio workstation etc. they can provide
a scientific reasonable design project for audio system by testing
the audio parameter of the building.
I developed a light control system based on WINDOWS with perfect
interface, high intelligentized level and combined active images
with voice. A control programme can be designed according to the
actual instance of light project.
I am experienced in special Karaok, home theatre and skilled
in their circuit design and manufacture. Recently I've made a
new progress in the circuit design of amplifier and digital control.
Home Theatre Technique has been published, which can afford fans
reference.
I have finished 5 projects of light sound about ShaoGuang University's
labour union club, ShenZhen Polytechnic's teaching and administrative
staff club etc.
Peripheral Equipment Development
for Professional Sound
At present, I've mastered the technique about simulate compressor/
expander, driver, full electronic audio/video signal converter
and time-order controllers. The technique applying the compress/expand,
drive to consumer audio has got a satisfactory effect; customers
are satisfied with my full electronic audio/video signal converter
used in a song and dance hall. The time-order controller designed
with PIC microcontrollers can simplify circuits and improve security.
I hope to develop practical products with the factories needed
the abovementioned technics.
Intelligentized Constant Power
Supply
I once researched the technology of constant power supply round
about 1994. This kind of power supply can switch automatically
in two states: constant voltage and constant current. It will
work in a constant voltage state when the output current is less
than the fixed current, work in a constant current state when
the output current equals the fixed current. It can be used to
settle the problem of short protection, and is very suitable for
students' experiments. At present, many power source factories'
products have this kind of function.
I use Microcontrollers to control automatically the power lossof
adjustment transistor according to my work experience, use a pulse
coder to compensate automatically the benchmark instead of a potentiometer
and improve its intelligentized level, the precision of constant
voltage and service life.
Wireless Communication Devices for
Alterable Frequency Under 500MHz
I was once engaged in designing an AM broadcasting station of
medium wave and short wave, accumulated some design experiences
during the university. In late several years, I have dealt with
many kinds of application development for a high-frequency PLL
chip, succeeded in developing many kinds of low power and multichannel
wireless communication devices and can design MCU interface for
high-frequency wireless communication projects and high-frequency
circuit.
Thunder Control Projects for Enterprises'
Ethernet
It is an important aspect for network's security to avoid entherprises'
ethernet being struck by lightning, especially some enterprises
that link up its branches with thick cable in the area of much
thunder, Guangdong. The appliances damaged by the thunder and
lightning are very common, such as switchboards, computers etc,
I am very familiar with the technique and products for preventing
the thunder of overseas thunder control factories, such as PROTEK,
OBO and FURSE. The thunder control system designed for banks,
exchanges, factories and mines etc, had good effects. Among them,
the thunder control works for computer networks designed for Guangdong
province Shaoguan city casting Co., Ltd, can not only guarantee
the appliances against being struck by lightning, but also make
networks prevent the electromagnetic interference of high-frequency
electric stove.
Carrier Wave Communication Technique
for Power Line / Telephone Line
I once finished transmitting the information from the broadcasting
station of Guangdong Shaoguan University's head school to its
branch school, Hanjiashan which is 10 kilometers from it with
the telephone line by the means of carrier wave. I also made the
carrier telephone of a multichannel analog power line instead
of a wireless interphone to carry messages in every section of
a unit.
At present, We've mastered the expanded frequency power line
communication technique with a high anti-jamming ability, it has
a big market in automatically checking meters, domestic networks,
industrial control. I will cooperate with businesses in demand
to develop products.
Perfect Time Control Resolvent
Ying Yong and I have developed a several kinds of multichannel,
multipoint programmable time controllers suiting for schools,
farms, factories and mines, virescence companies etc. One of them
is a time controller with the best powerful function at the present
marketplace, for it has four channels to fix time, every channel
can set 1440 reference points and guarantee the clock running
accurately for ten years.
Full Digital Temperature Controller
Ying Yong and I have developed a kind of full digital temperature
controller especially suiting for farms. Its collection precision
is 0.1≧ and its highest operational temperature is 125≧. It controls
automatically the temperature in a goldfish vat, hothouse etc
if a heater works with it.
Constant Current Control Temperature Instrument
for Fiberglas Drawbench Stove
It is vital for the drawbrench's quality to control the temperature
of a fiberglass drawbench stove . I designed a kind of SCR constant
current control temperature instrument according to the relative
theory, it improves greatly the stability of fiberglass drawbrench,
the yield and the quality because the current through the liquid
vitreous body is constant (the constant current's range is 10-50A).
It has a good effect on the actual application of SiChuan NeiJiang
Fiberglas Factory.
All Kinds of Eletronic Circuit
design
We are much experienced in designing an electronic circuit, know
the latest electronic devices at home and abroad and can take
charge of all kinds of circuit design projects. We have a technical
advantage in alterable gain control, big impedance amplifier,
constant current amplifier, combined figure with simulation, combined
high frequency with low frequency, Microcontrollers, DSP etc.
Software Design of
Real-time Monitor for Computer
It is important for automatic control to monitor the technical
flow with computer in the industrial field. We developed all kinds
of monitor systems for customers with the best domestic configuration
software, KingView, which is suitable for many fields, such as
smelting, electric power, waste water treatment, station etc.
We can design full active images to finish phonic alarm, history
and long-range monitor through INTERNET.
