1. Lu-an Liu
Emmylundsvägen 1 / 0116, Solna, liuluan002@gmail.com
Stockholm, Sweden, 17172 niklas.liu@brainheart.com
+46(0)704573117
EXPERIENCE
Experience in Electronics engineering and Signal Processing
1. Now- September 2012
Senior system engineer for M2M system in Brainheart Energy AB.
Dependently build the system which can use the mobile network to do Machine to Machine
talking with the local heatpump through the RS232, RS485 and CANbus system.
- 1st system based on mobile module, ARM(raspberry pi B), using
RS485&RS232( customized fully ESD protection interfaces) talking with the commercial heat
pump with modbus protocol. 6 units of system is sold to the market.
- 2nd system based on the mobile module and ARM(raspberry pi B) for canbus system, which
talks to the REGO1000 heat pump. 50 units of system is sold to the market.
- 3rd
system based on the mobile module and ARM for optical coupled serial port, which talks
to the REGO600 heat pump, 150 units of system is sold to the market.
- 4th
system based on the SIM900 communication module, ARM(raspberry pi A+),
- can talks with wireless temperature module which is within 800 meters distance
- can have the power failure detection function, with the battery and power charging
circuits.
- can talk with the canbus and modbus sytem at the same time.
- can talk with the optical coupling interface to the REGO600 heat pump.
Familiar with using the temperature sensors and heat flow meters talking with the modbus
system
Skilled for production designing and management for the delivery and logistics. Independently
manage the supply chain and production in China and shipping the finished product to Sweden.
2. September 2012 - September 2011 Huawei Sweden AB, product manager
• Android phone Test
- function test
- problem shooting
• data-link card test
- test HSDPA, HSUPA, HSPA+, LTE data link cards
- weak signal environment, strong signal environment test
2. • market planning for smart phone in campus promotion
• supply chain time controlling
3. October 2010 – June 2010 Project Coach,
use the SCRUM to coach the team to build the real time Video application and the networks
for the surgery between the two campus of Karolinska Institutet hospital
Tutor:.Bjorn Pehrson, Dr.Tech bpehrson@kth.se
4. Aug.2009 – Feb.2009 Touchtable AB multi-touch technology developer
made a multi-touch interface which can find five touch points from the interface at the same
time
• new algorithm designing for the multi-touch interface baded
• ACDC circuits for testing based on the infrared receiving and sending array
• hardware designing with digital and analog mixing circuits
• new voltage comparison circuits design
• middle ware programming with RISC command AVR chip
• API written by Java
• PCB board designing
Tutor: Joakim Linde joakim.linde@touchtable.se
Examiner: Professor Lirong Zheng, Dr.Tech. lirong@kth.se Tel: +46 (08) 790 4104
4. Dec.2008 – Sept.2008 Hardware developer
Project of medical sensor system with Bluetooth module, and communication between the
mobile phone via Bluetooth
• Digital signal control by single chip 80C52 Input and Output
• Got Samples the analog signal from the sensor, then A/D convert
• Controlled the blue tooth by single chip 80C52 through HCI command to
communicate with mobile phone
Tutor: Dr. Heidi Nilsen Phone:+4797954305 Heidi.Nilsen@telemed.no
Project Owner: Norwegian Centre for Integrated Care and Telemedicine (NST)
(http://www.telemed.no/ )
5. Mar.2008 – Jan.2008 System developer
Project of mobile application mobile phone game (programmed with J2ME to communication
via Bluetooth and SMS)
Tutor: Dr. Olle Karlsson ollek@kth.se
6. Oct. 2007 – Sept.2007 Designed the routing architecture; finish the configuration and
running VPN and VoIP over the network (ISP project In Tslab)
Tutor: Professor Dr. Markus Hidell mahidell@kth.se
7. Mar.2007 – Nov.2006 Developed a sound localization system with microphone array
applied for video conference system and "adaptive noise controlling"(Best Paper for Xidian
Bachelor Degree in 2007)
3. Examiner: Professor Junning Wang xdtidsp@mail.xidian.edu.cn
8. Nov.2006 – Mar.2007 Developed an Adaptive noise reduction system (both the DSP
adaptive noise reduction and Physical noise reduction (Best Paper for Xidian Bachelor Degree
in 2007)
9. Sept.2006 made a TV and configured it with oscillograph
10. Oct. 2003 Workshop with the machine tools
11. Nov.2003 Workshop to make a PCB board and make a radio
12. Oct.2003-Dec.2005 President of the English Sky in Xidian University
Experience in Sound and vibration
1. New Generation Acoustic Camera build up and testing, Using Improved Beamforming
Algorithm
· Built a 20 channels microphone array with data acquisition system
· Apply beamforming algorithm for the system software( C programming in Visual Studio 2008 )
· Improved algorithm applied in beamforming algorithm, decreasing the aliasing distortion around 10 dB
· Developing phaseless digital octave bands filter( based on Chebyshev filter) integrated in the software
· Performed measurements on the fan noise source with microphone array and different software algorithms
Sound View Instrument AB, http://soundviewinstr.com/
Boss and Tutor: Dr. Anders Nordborg anders.nordborg@soundviewinstr.com
+46(0)706817989
2. Numerical Methods with FEM modeling, programming and theory understanding
3. Vehicle Acoustics, simulations on Matlab, comparing influence of the sound pressure
distribution and displacement for the car in condition of differentabsorption, damping and the
size of the car
Prof Peter Göransson, pege@kth.se ,
Dr. Otto Gartmeier,Benz (head of NVH department of Daimler Chrysler Corporation),
ottoga@kth.se
4. Sound effect and mixing, programming the 3D sound in Dolby B-format, Professor Dr. Sten
Ternström sten@speech.kth.se
5. Pattern Recognition project " Recognition for characters", programming and process
designing on Matlab, Professor Dr. Arne Leijon, leijon@kth.se, Phone: +46-8-790 7556, Fax:
+46-8-791 7654
6. May.2010 Wind tunnel test on the wake of a car model, MWL lab
7. Mar.2010Wind tunnel test on the Scania truck muffler, data future processing and
4. simulation with CFD software SIDLAB(produced by the MWL lab), MWL lab
Professor Mats Åbom, D.Sc.(Tech.), Phone: +46-8-790 79 44, Fax: +46-8-790 61 22,
matsabom@kth.se
8. Nov.2009 Project of Structure Dynamics Experiment on the roof of Saab 95 car,
MWL (modal analysis experiment and programme and algorithm )
Ulf Carlsson, Dr.Tech. lab Phone: +46-8-790 90 11, Fax: +46-8-790 61 22 ulfc@kth.se
9. Oct.2009.9 Sound field testing of vibrations and model analysis, MWL lab
Associate Professor Leping Feng,Dr.Tech. Phone: +46-8-790 79 96, Fax: +46-8-790 61 22,
fengl@kth.se
10. Sept.2009 Adaptive noise cancellation experiment and coding by myself , MWL lab
Associate Professors Hans Bodén, Dr.Tech.Phone: +46-8-790 80 21, Fax: +46-8-790 61,
hansbod@kth.se
11. June2007 Best bachelor thesis Award "adaptive noise controlling" & "sound localization
system with microphone array applied for video conference system.", DSP Texas Instruments
and Xidian University collaboration lab
12. The noise isolation earphone(It is much better than the noise isolation earphone in the
market until today)
Third prize in Xidian University
First prize in Communication Engineering School of Xidian University
HONORS AND AWARDS
1. Dec. 2009 First Prize, Chunhui Cup(Chinese Oversea student creation and entrepreneurship
Competition, by Ministry of Education of the People's Republic of China)
2. Mar.2008 Excellent Project, Project of mobile application mobile phone game
July 2007 Best Paper Award in Xidian University Bachelor Degree
3. May 2004 Third prize in “Spark Cup” Extracurricular academic competition in Xidian
University (I was the youngest student to win this prize in the school)
4. Nov.2004 First prize in “Spark Cup” Extracurricular Academic Competition in School of
Telecommunication Engineering (I was the youngest student to win this prize in the school)
5. 2003 -2005 Founder of the student organization "English Sky"
Other:
Chairman of the Promotions Department, School of Telecommunication Engineering Student
Union, Xidian University
PERSONALITY
Entrepreneurial spirit, Commitment,Honesty, Responsibility (Environment, Health and Safety),
Innovative focus and customer orientation, Highly motivated, quick to learn, open-minded,
passionate, optimistic, confident
5. EDUCATION
Now - Sept 2009 Royal Institute of Technology (KTH) MWL,The Marcus Wallenberg Laboratory for
Sound and Vibration Research
Master in Sound and Vibration (expect to graduate in June 2011),
Main Courses:
Introduction of Noise and Vibration control, Acoustical measurements, Signal Analysis,
Vibro-acoustics, Experimental Structure Dynamics, Project Course, Flow Acoustics, Energy
methods, Pattern Recognition, Vehicle Acoustics and Vibration, Audio Technology, Numerical
Methods (with FEM modeling)
Oct. 2010 - Sept 2007 Royal Institute of Technology (KTH)
Master in Internetworking
Main Courses:
Developing Mobile Application, Dimensioning of Communication Systems, Wireless and
Mobile Network Architectures, Advance Internetworking, Inter-domain Routing, Internet
Security and Privacy,Strategic Management of IT, Communication System Designing,
Coaching ICT R&D projects,Degree Project in Electronic- and Computer Systems, Second
Level
June 2007 - July 2003 Xidian University, School of Communication Engineering,
Bachelor in Communication Engineering (Xidian University is the best school in communication
engineering throughout China)
Thesis project in adaptive noise reduction (contain the electronic way and physics solutions)
and sound localization in 2007(Best Paper Award in Xidian University
Bachelor Degree).
Main Courses:
Sound signal Processing, Digital Signal Processing, Signal and System, Random signal Analysis, Digital
Circuit and logic Design, Sensory Technology, Electromagnetic Fields and Wave, High Frequency Electronic
Circuits, Low Frequency Electronic Circuits, Principle of Communication, fundamental of circuits,
Fundamentations of Information Theory, Microwave Technology and Antenna, Wireless Communication,
Optical communication, Basic Communication Network,
SKILLS AND ACTIVITIES
Language Chinese Native
English Fluent in verbal and written
Swedish Elementary
Skills in
electronic and
ICT
Electronic Designing Development dependently based on Linux
and ARM(raspberry pi)
Skilled in bottom layer driver
Skilled in CANbus and Modbus system
(independently develop a system based on
mobile network and CANbus system+
ARM11
6. Skilled in the AT command and wireless
module
Skilled in the power charging circuits
Skilled with the single chip hardware and
programming, skilled with the SPI
protocol, RS232 port, PMW wave,
AD/DA converter, skilled with RISC and
CISC command single chip
Familiar with DSP TI C5000 developing
board (able to use CCS and programming)
Familiar with modelsim and verilog HDL,
FPGA and CPLD
- Quartus II environment debugging
environment
- Verilog programming
- write Test bench in Modelsim
Able to design and verify the PCB board
with Altium Designer
Familiar with Keil environment for Atmel
C51
Familiar with ICC+AVR studio
enviroment for Amtel mega32
Programming Skilled in C programming
Familiar with J2ME and J2SE programming
Familiar with php + Mysql (I have built a
BBS by php+Mysql.)
Protocol Familiar with Routing Protocol and
configurations with Inter-domain routing
and intra-domain routing
Team management skill Able to use SCRUM to do the
management
Marketing planning
Other Skills Able to use machine tool (Lathe, milling
machine and planer)
Skills in
Sound and
vibration
Room acoustic
Acoustic camera system
- frequency and time domain beamforming
- digital filter programming
- calibration with phase and amplitude differences
Experimental Structure dynamics
- modal analysis
