Requirements: 1, major in electronics, electric power, automatic control or instrumentation, with solid theoretical knowledge of power electronics; 2. More than three years working experience in the design and development of switching power supply (below 500W), able to independently complete the design of electrical main circuit and related control and protection circuits and transformers; Practical experience of independently developing AC DC power supply: 3. Strong hands-on debugging ability, deep cost concept, familiar with product safety regulations, EMC design, safety design and thermal design; Familiar with transformer principle and design experience is preferred; 4, familiar with the specifications and applications of various electronic components, understand the characteristics of various power devices; Familiar with the characteristics of mainstream power control chips; 5. Skilled computer operation skills (including the use of relevant engineering software);
What do Android stand-alone game development engineers mainly do? He is responsible for the development of stand-alone games under the Android system. From the beginning, he will learn from the basics, and there will be masters. If you have a foundation, don't worry.
What does a communication design engineer mainly do? What basic knowledge is needed? First, to design a base station, you have to go to many places, mountains and so on, and be prepared for hardship. Design the coverage, strength and so on of those base stations.
Second, the planning and design of the city is also the base station of the city. At this time, we must consider more interference and other issues.
Third, interior design, such as underground parking lot, originally had no signal, just added a signal source. This design should be distributed reasonably and the coverage should be considered. There is also the signal design of the building. For example, because there are many walls in the building, external signals cannot be covered, so we can only add signal sources in the corridor of the building. Many buildings have this design.
Fourth, design WLAN. It's similar to the one above.
Design is mainly some design software, CAD and the like. You also need to understand the communication principle, rationally allocate channels and so on. There are also some signal testing software. It's not that hard.
What does the network optimization engineer mainly do to optimize the background network, that is, make reasonable adjustments to the network, gradually improve the network performance, and achieve the best system performance under the existing configuration conditions. It is the perfection and supplement of the previous network planning, and it is also a means to solve the existing and potential problems of the network and improve the network performance.
operating duty
1. After the completion of the mobile communication network, the function of network optimization is to ensure the full coverage of the network and the reasonable allocation of network resources. In the initial stage of network construction, it is mainly responsible for the full coverage of signals. After the network is basically formed, with the increase of BTS in the network, the interaction between BTS will become more and more serious, and with the continuous increase of customers, the requirements for reasonable allocation of network resources will become higher and higher. The main job of network optimization engineer will become to eliminate the mutual interference between BTS in the network, allocate resources, and further plan and build the network.
2. Efficiency analysis. As there are more and more customers in the network, network resources will gradually become congested from idle in the initial stage of network construction. The uneven distribution of customer density will also lead to the fact that the utilization rate of network resources can not be the same as that of the model in the early stage of planning, so efficiency analysis is needed at this time. Engineers need to rationally allocate resources in the network by analyzing the traffic in the network, and at the same time, according to the overall resource utilization rate of the network and the change of network traffic, put forward further network construction schemes.
3. Road test. Although the number of base stations in the network is relatively small in the initial stage of network construction, the connections between base stations are basically in a fairly fixed state. However, with the increasing number of base stations in the network, there will be many covered base stations in the same section. Whether the user can occupy the most suitable base station to make a call will directly affect the quality of the user's call, and the main job of the drive test engineer is to ensure that the user can occupy the best base station signal to make a call when making a call on the road.
Network optimization is to find out the reasons that affect network quality by means of traffic data analysis, field test data collection, citation analysis and hardware inspection. And by modifying the citation, adjusting the network structure, adjusting the equipment configuration and adopting some technical means (using MRP planning method, etc.) to ensure the high-quality implementation of the system. ), so as to obtain the best benefit and maximum benefit of existing network resources with the most economical investment.
Career overview
"Optimize your life and plan your future". This is the slogan of network optimization engineer! Nowadays, network construction has become an important part of social information construction. Of course, all this is inseparable from the network optimization engineer. Network optimization engineer is a mobile communication network optimization project, which carries out network testing and efficiency analysis. Network planning and network optimization are based on engineering practice, and specific solutions are transformed into projects to be implemented.
professional sketch
Vocational requirements: Education and training: Bachelor degree or above in communication engineering, computer and other related majors.
Work experience: familiar with wireless optimization process and the use of optimization tools; Master the optimization methods of each index and be responsible for BSC optimization independently; Good language expression and communication skills.
Salary quotation:
The average monthly salary ranges from 3000 to 8000 yuan.
Career development path:
Network optimization engineers need a bachelor's degree in communication, and MCSE (Microsoft Certified Network Engineer) and CCNA are very helpful to become network optimization engineers. At present, the construction and development of 3G network is imperative. Therefore, network optimizers should learn 3G knowledge in advance, understand the characteristics of the next generation network, accumulate 3G network experience of foreign operators, and make a good knowledge and technical reserve for developing and optimizing 3G networks. In the optimization of the existing network, we should collect the basic data of the existing network in advance, reasonably predict the structure of the next generation network, make a reasonable one-time plan for the 3G network according to the characteristics of the next generation network, integrate the network optimization work into the planning and engineering construction of the 3G network, and minimize the impact of network evolution on the network service quality.
What does the base station debugging engineer mainly do? If it debugs the wrong base station
The main work is debugging and transmission. .
Then you should know something about the hardware of the relevant manufacturers.
What do Huawei software development engineers mainly do? They do software development. They used to be in the field of communication, and they were very big. There should be tens of thousands of people making software.
There are also upper-level applications, telecommunications services, network management and billing, which belong to the soft sector in Huawei. Such as color ring tones, prepaid (Shenzhouxing) and so on.
There are embedded software, protocol stacks, management modules and so on, such as switches, mobile phones, ADSL cats.
Now also do enterprise applications.
What do SMT engineers mainly do? SMT engineers are a group of management talents engaged in SMT technology.
2. What is SMT?
Short for surface mount technology, please refer to SMT entry for details.
3. The current situation of 3.SMT engineers
At present, there is no clear plan and document for the evaluation of SMT engineers in China. Compared with other engineers, SMT engineers have the largest number of employees in the world. The evaluation of SMT is directly employed by the company.
Hadoop development engineers generally do what Hadoop engineers do, mainly at the development level, which means that system-level R&D personnel around the big data platform are familiar with the core framework of Hadoop big data platform and can use the general algorithms provided by Hadoop.
Mastering the components of Hadoop ecosystem, such as Yarn, HBase, Hive, Pig and other important components, can realize platform monitoring and the development of auxiliary operation and maintenance systems.
Whether it is a famous foreign company Google or Yahoo! , Microsoft, Amazon,
Whether it is EBay, FaceBook, Twitter, LinkedIn, or start-ups such as Cloudera and Hortonworks, or well-known domestic companies such as China Mobile, Alibaba, Huawei, Tencent, Baidu, Netease and JD.COM Mall, Hadoop and related technologies are used to solve the problem of large-scale data, so as to meet the needs of companies and create commercial value.
I hope I can help you, thank you!