Xingyi bitcoin

1. The price of pure breed bitdog is about 2000-3000 yuan, and the price of good breed bitdog is about 4000 yuan. Cheap bitdogs must be crossbred

the price of a bitdog in Beijing, Tianjin, Hebei Province, Xinji, Gaocheng, Jinzhou, Xinle, Luquan, Pingshan, Jingxing, Luancheng, Zhengding, Xingtang, Lingshou, Gaoyi, Zhao, Zanhuang, Shenze, Wuji, Yuanshi, Tangshan, Zunhua, Qian'an, Qianxi, LUANNAN, Yutian Tanghai County, leting County, Luan county, Changli County, Lulong County, Funing County, Handan City, Wu'an city, Handan County, Yongnian County, Quzhou County, Guantao County, Wei County, Cheng'an County, Daming County, she County, Jize County, Qiu county, Guangping County, Feixiang County, Linzhang County, CI County, Xingtai City, nangong city, Shahe City, Xingtai County, Baixiang County, Ren county, Qinghe County, Ningjin County, Wei County Longyao County, Lincheng County, Guangzong County, Linxi County, Neiqiu County, Pingxiang County, Julu County, Xinhe County, Nanhe County, Baoding City, Zhuozhou City, Dingzhou City, Anguo City, Mancheng County, Qingyuan County, Laishui County, Fuping County, Xushui County, Dingxing County, 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2. The most distinctive folk houses in Fujian should be "Tulou"
vernacular houses with strange styles are scattered in Yongding, Wuping and Shanghang in West Fujian, and Nanjing, Pinghe, Hua'an and Zhangpu in southwest Fujian. Its modeling, decoration and construction technology are rare in the world. Tulou is commonly known as "shengtulou". Because most of them were built by Hakka people in Fujian, they are also called hakka earth buildings. It is made of raw soil as the main building material, mixed with fine sand, lime, glutinous rice, brown sugar, bamboo slices, wooden strips, etc., after repeated kneading, pounding and pressing. The roof of the building is covered with fire tiles, which will last for a long time. Tulou can be up to four or five stories high, for three or four generations to live together
among the categories of traditional Chinese dwellings, this kind of civil framed house with raw soil as the wall has many styles. There are many kinds of shapes, such as round, square, semicircle, ellipse, Jiaoyi, Wujiao, Bagua, Wufeng, Taoxing and irregular shapes. The most common shapes are round, square, Jiaoyi and wufenglou
the square building is called "sifanglou" in Yongding and "sijiaolou" in Nanjing. Its origin is the earliest, and its preservation is the most complete, closed and firm up to now. The height of this kind of earth building is about 16 meters, and it can reach five floors. Each floor is about 3 meters apart. The walls are thick below and thin above. The bottom wall is more than 1 meter thick. The higher the wall is, the narrower it is. The thickness of the top floor is only 0.8 meters. The floor area of the building can reach thousands of square meters. The total building area of the five storey building is about 3000 square meters. There are more than 20 rooms on each floor and one hall on each floor. There are about 100 rooms in the whole building. There are stairs leading to the upper floor in four directions. A building can live in 20 or 30 households with more than 100 people. They are represented by "hegui building" in Pushan village, Meilin Township, Nanjing, "dafudi" in Wuping, "Fuxin building" in leizhai village, Yongding lake, etc. Fuxinlou, also known as "building mansion" and "huoshaolou", was built in the fourth year of the Dali Period of the Tang Dynasty (769). It has a history of more than 1200 years, and its residents have been handed down to 27 generations. The "Wushi building" in Yongding ancient bamboo town is a special type of square building structure. Its corridor design is in the sandwich wall, which saves a lot of wood and has strong concealment
round building, also known as "round building" and "earth round building", is called "village" by Yongding Hakkas. Circular cylindrical round building is one of the most representative earth buildings in Fujian. Yongding, Nanjing, Pinghe, Shanghang and Hua'an are mainly of this kind. It is said that yuanlou was developed from military barracks by Tang General Chen Yuanguang when he was in Fujian more than 1300 years ago. The appearance of the round building is huge and towering, with a diameter of 50-70 meters everywhere. "Chengqilou" yuanzhai, Gaobei village, Guzhu Township, Yongding County, Fujian Province, was built in the reign of Emperor Kangxi of the Qing Dynasty (1662-1723). It is 73 meters in diameter. It is a huge ancient castle made up of big ring, small ring and three rings with the same center. Each ring is separated by a ring shaped patio. The outer ring is 229 meters long, and the bottom wall is 1.5 meters thick. The outer ring is 4 stories high, the middle ring is 2 stories, and the third ring is a bungalow. At the center of the circle is an Eight Trigram shaped octagonal ancestral hall. The building has 400 rooms, covering a total area of 5376 square meters. It has lived in 80 households and more than 600 people. The "Pingzuo juening" yuanzhai in Lufeng village, Luxi Township, Pinghe County, South Fujian Province, has a round building with a diameter of 77 meters. It is the largest round earth building known to people in the world. The main building is 4 stories high, about 14.5 meters high, with 77 rooms on each floor. Now there are more than 250 people in 77 families, all of whom belong to the same clan. It was built in the early years of the reign of Emperor Kangxi of the Qing Dynasty. It took 40 years before and after the project. At its peak, more than 700 people lived there. The common round building covers an area of more than 1000 square meters. Generally speaking, Yongding yuanlou usually has three storeys and Nanjing yuanlou usually has four to five storeys. It is about 123m high, with about 30 houses on each floor and 2-4 stairways (depending on the size of the building). Many round buildings have another small round building covering an area of 20-30 square meters; As a place of ancestor worship and entertainment, it has a unique style; Usually, a small round building can also accommodate more than 20 households and 100 people. The building style of the round building is similar to that of the square building in the thickness of the earth wall. The difference is that the specifications of the rooms on each floor of the building are more unified and standardized. Yuanlou also overcomes some shortcomings of fanglou. For example, the square building has dark light, poor ventilation, close to the wooden stairs, and high noise, while the round building has eliminated the corner room, the component size is unified, the construction is relatively simple, and the roof is more simplified. Compared with the square building, the room orientation has no obvious difference, which is concive to the distribution within the clan. In addition, the area of a circle with the same perimeter is 1.273 times that of a square, so the round building has more space for the inner courtyard than the square building. Because of no gap angle, the need for large timber is reced correspondingly, and the performance of wind resistance, earthquake resistance and fire prevention is higher. Built in 1601, the "Shengping building" in Baoshan Village, shajian Township, Hua'an County, is the only three story round building with all the external walls made of stones in Southern Fujian. It is also a unit structure. Because of not avoiding wind and rain, the eaves are small, like a stone mill. The stone round building is a unique branch of the earth round building family in Fujian Province, but its seismic performance is inferior to that of the earth round building
in Nanjing and other places, there is another kind of earth building called "jiaoyilou", whose architectural form is roughly the same as that of square building. However, the front row room is slightly lower, which is a bungalow or a two-story building, and the left and right sides are slightly higher, which is two or three stories, similar to the "armrest" of the seat. The rear row room is the highest, which can reach more than three stories, just like the back of the seat. The whole building is like a "Jiaoyi building", so it is commonly known as "Jiaoyi building". Its characteristics are low in front of the wall and high in back, sufficient sunshine, fresh air, warm in winter and cool in summer. There are 50 or 60 rooms in 15 households with about 60 or 70 people. The "Changyuan building" in Shiqiao village, Shuyang Township, Nanjing County, which was built in the first year of Yongzheng reign of Qing Dynasty (1723) is its representative
in the earth building, the round building and the square building are usually built separately, but in some places, e to historical reasons, a group of earth buildings combining the round building and the square building has been formed. Huang's family in tianluokeng, Shuyang Township, Nanjing County, has built five round and square earth buildings in the past few hundred years. Looking down from the sky, a square building stands in the center, and four round buildings surround the four corners. It's like a big plum blossom in full bloom, dotted on the green field of pingchou. At the beginning of the building group, it was only a square building. Huang's ancestors took the building as "Hechang building". Later, e to the growing number of people, four round earth buildings were built around the square building, which arched and defended the "Hechang building" from the East, West, South and north directions, making it both like a mountain fortress and a castle. The grand idea of winning people's heart and soul is admirable! In addition, in Gaobei village, Guzhu Township, Yongding, there are also Tulou groups, which are mainly round buildings and are mixed with square and round buildings. This kind of ingenious conception and peculiar combination has been praised by architectural experts at home and abroad
the ground floor of the round or square building is used as kitchen and dining room, and some are also used as cowshed and pigsty. There are no windows on the ground floor. The second floor is a utility room for storing grain and farm tools, and there are few windows outside. More than three floors are bedrooms. The rooms upstairs and downstairs and each single room are the same size, generally about 10 meters 2, which is narrow and small, with only one bed, one cabinet and one table, reflecting the Hakka Family's habit of taking the living room as the main activity space instead of the bedroom. Most of the corridors in the Tulou are open corridors, which are shared by all. The doors and windows of each room open to the corridor. There are also some earth buildings with Eight Trigram units inside or from the first floor to the top floor, each of which is an independent unit. The families are connected up and down the stairs. The outer ring of Zhencheng building in Hukeng township of Yongding is divided into eight groups of rooms in the form of eight trigrams, with six rooms in each unit, 48 rooms in each floor and 192 rooms in four floors. Each unit is separated by a firewall and connected by an arch. There is a bathroom downstairs
in the Hakka residential areas in the West and southwest of Fujian Province, there is also a kind of Tulou residence which is quite different from the round and square Tulou style, commonly known as "wufenglou" (Nanjing people call it "big house"), which is a kind of mansion style Tulou residence. Wufeng was originally the five elements meaning of the five directions (East, West, South, North and middle) with five colors. The famous house of five phoenixes represents the corresponding moral of the four directions and the central government. It is similar to the palace of the Central Plains in ancient times, and also similar to the form of the Forbidden City in Beijing. On the basis of plane development, we should pay attention to the balance and symmetry between left and right, the order of front and back, and the order of layout. The most common five Phoenix building is the three Hall and two horizontal style. There are also three halls and one horizontal style, four horizontal style and six horizontal style. The building contents of a three Hall and three horizontal five Phoenix building include: fish pond, side seat, Huiwu, Heping, lower hall, middle hall, back hall and two chamber horizontal house. In the modeling design, the hall and patio have unique configuration. The hall is open, facing the patio and connected with the patio. The edge of the hall is the edge of the patio. They form an inseparable whole, which has the comprehensive function of ingenious space collocation and communication coordination. There are five patios and nine halls in the building. There are three patios and three halls on the central axis. The central axis has always been the patio and the open hall, which can be seen from the gate to the end. Between the two horizontal rooms and the central axis, there is a patio, which includes the small hall, the middle hall and the side hall. The open corridor in the building is the cloister, which connects all parts of the building and each room. There are three patios on the central axis of the building. The patios of the two horizontal rooms can be used to set up the ground shed. When there are red and white etiquette activities, there is a wide space, which is very convenient. Wufeng building usually has 30 rooms up and down, and a number of kitchen warehouse miscellaneous rooms, which can live in more than ten households and a hundred people. The big one has more than 60 rooms, which can accommodate more than 200 people. Wufenglou emphasizes decorative art, carved beams and painted buildings. It is very delicate and is the most "luxurious" of all kinds of earth buildings. The beauty of its color modeling is widely praised by experts. The representative works of wufenglou include "dafudi" in Fuling village, Gaopi Township, Yongding, "Fuyu" in hongkeng village, Hukeng Township, and "Yijing" in Shangyang village
the common characteristic of Tulou is that it takes two or three years to complete the construction, and even takes several generations of craftsmen to work. The timber used must be 300-500 cubic meters. Because the earth walls are thick at the bottom and narrow at the top, they are solid and firm. The "three proofs" (windproof, waterproof and shockproof) have good performance. Some of them can also prevent fire (the three ring earth walls are three fire sealing walls). In particular, their extraordinary earthquake resistance capability is amazing. Almost all earth buildings have been tested by earthquakes of different degrees and are safe. For example, the huanjilou building in Hukeng Township, Yongding, built in 1693, has experienced several earthquakes in the past 300 years. The great earthquake on the sixth day of the fourth lunar month in 1918 only cracked a 50 cm wide crack between the third floor and the fourth floor on the upper right of the main entrance. Because the wall structure of the circular building is 1.2 meters thick, it is slightly inclined inward when it extends upward, in the shape of a ladder, with strong centripetal force. Over the past 70 years, it has been miraculously and naturally closed, leaving only a 12 cm wide crack. In recent years, in order to avoid the inconvenience of people going in and out of one gate, people have opened another small gate. With the help of stone masons, it took a few days to open the "Fuxin building" with steel chisels. The tenacity of this kind of three compound wall can be seen from this. Another feature of Tulou architecture is that the structure is extremely standard, and the room size is consistent. Most of the earth buildings have only one gate for entrance and exit. There is a patio in the building, which can store more than half a year's grain. It is like a strong castle, which is easy to guard against theft and bandits (in the old days, Hakka people were often attacked by bandits, so they built high walls to prevent accidents). Because the wall is higher and thicker, it can not only keep damp and warm, but also keep warm and cool. When Hakkas build earth buildings, they build chimneys into earth walls to keep the kitchen clean from black smoke pollution. The construction of Tulou is also a manifestation of Hakkas' belief in Fengshui in the old days. Superstition says that the road has "Lu Sha", the stream has "Xi Sha", the exit

3. Internship purpose: in order to consolidate the main business knowledge of communication engineering, improve the understanding of practical operation and proction skills, deepen the specific understanding of communication related procts and proction processes, and learn more about the knowledge beyond the textbook of communication, so as to provide better help for the future study of this professional course

foreword: through nearly a week's study, we have learned a lot from sensibility, which also has a profound impact on our future study and the determination of research direction. Through this visit internship, I have enriched my theoretical knowledge, enhanced my observation ability, broadened my vision, and made me have a qualitative understanding of my future work, which really made me gain a lot. Now the internship will visit the internship content, internship harvest, as well as the future direction of their own efforts and feelings of this three aspects to sum up<

preparation work:

on September 1, we participated in the mobilization meeting of cognition practice. At the meeting, the teacher in charge of the team explained in detail the matters needing attention ring the practice and the unified arrangement of the practice in recent days, and encouraged everyone to be diligent in asking questions to the technical personnel ring the internship, So that we have a better and deeper understanding of this major< On September 2, under the guidance of our teachers, we took a bus to China University of Geosciences to visit the communication system laboratory there. There, we learned that the communication system Laboratory of China University of Geosciences is an important communication and information technology experimental teaching base for undergraates and postgraates, and an open laboratory integrating experimental teaching and scientific research. To provide a good training environment for the cultivation of innovative talents, and to provide a cooperation and exchange platform for school enterprise co construction. The overall goal of the system is to build an experimental platform

while following the teacher to visit, the internal teacher introced that the communication experimental system is composed of five hardware platforms and special communication software, including Huawei's Metro series optical transmission procts, C & C08 program-controlled switch, ma5300 broadband equipment, H3C layer 2 and layer 3 data communication equipment, wireless access, etc. With the support of special software (E-Bridge, T2000, etc.), each platform can set up both independent experiments and systematic experiments, and provide a variety of end-to-end communication solutions, which can accommodate 35 students to operate on the computer at the same time

relying on this platform, we can complete the teaching experiment, course design, proction practice, graation design and scientific research of communication and information major. The platform can cover the following courses: access network technology, program-controlled switching, optical fiber communication, SDH, computer communication network, information management and security, telecommunication signaling and communication protocol, multimedia communication, voice processing, image processing, communication principle, mobile communication, electromagnetic field and electromagnetic wave, etc. At the same time, the platform can support Huawei optical transmission network and H3C network training and certification services, and those who pass the certification examination can issue corresponding certification

for the future development of the sub laboratory, the teacher stressed that innovation comes from practice. Under the guidance of Premier Wen's school running tenet of "plain living, truth-seeking and pragmatic", the laboratory has been built into a first-class, fully functional, social oriented and innovative communication experimental teaching base in China< On September 3, we went to Changfei optical fiber and cable Co., Ltd. by car in the early morning to visit and practice. When we were in the hall, the relevant staff of the company introced the general situation of the company to us

founded in May 1988, Changfei company is jointly invested by China Telecom Corporation, Holland Drake Communication Technology Co., Ltd. and Wuhan Changjiang Communication Group Co., Ltd. It is the only professional manufacturer with integrated scale proction capacity of rod making, fiber drawing and cable forming in China. The company is located at No.4, Guanshan 2nd Road, Donghu hi tech Development Zone, Wuhan city. It covers an area of 150000 square meters, employs about 1000 people and has an annual sales of nearly 3 billion yuan. It is the R & D and proction base of optical fiber and cable procts with the most complete proct specifications, the most advanced proction technology and the largest proction scale in China

since it was put into operation in 1992, the proction and sales volume of optical fiber and optical cable procts of Changfei company has ranked the first in China for 16 consecutive years, with a total proction and sales volume of 52.5 million core kilometers of optical fiber and 1.23 million skin kilometers of optical fiber (36 million kilometers of optical fiber), with a total sales volume of more than 20 billion yuan. The procts are exported to more than 50 countries and regions such as the United States, Japan, Southeast Asia, the Middle East and Africa, and become the second largest optical fiber manufacturer and the fifth largest optical cable manufacturer in the world

since its establishment, Changfei company has explored a successful way to revitalize the national instry through introction, digestion, absorption and innovation

research and development center is a department of Changfei company specializing in the research of optical fiber and optical cable manufacturing technology, proction process, manufacturing equipment and materials for procts. It has 13 doctors and postdoctors, 54 masters, 103 undergraates and 22 senior technical experts, and is committed to the development and research of new optical fiber and optical cable procts with world leading level

up to now, Changfei company has obtained 109 National authorized patents, including 51 invention patents. At the same time, it also obtained a number of U.S. patents

at the same time, Changfei company has undertaken the national "Tenth Five Year Plan" key projects, the information instry technology upgrading project of the national development and Reform Commission, the national "863" project, the "science and technology promoting trade" project, the national torch plan project, the key projects of science and technology in Hubei Province, the "research and development of export mechanical and electrical procts" project of the Ministry of Commerce, and the key projects of science and technology in Wuhan, He won one national science and technology progress award, one Hubei science and Technology Progress Award and two Wuhan Science and technology progress awards, and participated in the formulation of ITU-T standard of ITU

in addition, Changfei company also vigorously carries out independent innovation infrastructure construction. It has been recognized as Hubei postdoctoral instrial base, Hubei provincial enterprise technology research and development center, Hubei optical communication material engineering research center, national "863" plan achievement instrialization base, China's information instry annual innovation enterprise, national enterprise technology center, Wuhan Optical Fiber Communication Engineering Technology Research Center< Since it was put into operation in 1992, Changfei company has proced and sold 52.5 million core kilometers of optical fiber and 1.23 million skin kilometers of optical fiber (36 million kilometers of optical fiber), with a total sales of more than 20 billion yuan. The proction and sales of optical fiber procts and optical cable procts ranked first in China for 16 consecutive years, and ranked second and fifth in the world respectively

in the domestic market, Changfei's optical fiber procts and optical cable procts are widely used in China Telecom, China Netcom, China Mobile, China Unicom, China Tietong and other communication operators, as well as electric power, radio and television, transportation, ecation, national defense, aerospace, chemical instry, petroleum and medical treatment, with a national market share of more than 40%

in the international market, Changfei has exported about 10 million core kilometers of optical fiber and cable procts. The procts are exported to more than 50 countries and regions such as the United States, Japan, Southeast Asia, the Middle East and Africa, with an international market share of more than 10%

while introcing modern proction technology, Changfei company has also introced modern management methods and systems, especially modern quality management proceres, so that every proction link of Changfei company is under strict and scientific quality control

in 1993, through the comprehensive audit of Kema company in the Netherlands, Changfei company became the first enterprise in the national optical fiber and cable instry to obtain the ISO9001 international quality system certification

in 2001, Changfei company adopted ERP system to start the enterprise resource planning system, from raw material procurement, contract review, proct proction, finished proct delivery to after-sales service, and implemented the whole process quality monitoring to ensure that procts, processes and services meet the needs of users< In 2002, Changfei company obtained the ISO 9001:2000 international standard certification, which indicates that the quality management system of Changfei company has developed from the original mode of introction and reference to the mode of self-improvement and continuous improvement

by 2007, its single light preform wire drawing length has exceeded 2000 km, and it has won the title of "top 500 Chinese manufacturing enterprises" and "the most influential enterprise of China's optical fiber and cable in 30 years"

following the staff, we visited the proction process of optical fiber and cable related procts, and had a good understanding of the whole preform proction< Since its establishment in 1999, Fiberhome has taken the instrialization of multimode optical fiber as an important task and implemented the leapfrog development strategy. First of all, in the original pilot plant, by improving equipment performance, adding new PCVD equipment, improving process technology and other measures, the annual sales volume of optical fiber in 2001 increased five times than that in 1999. At the same time, in Wuhan? Besides large-scale proction of single-mode optical fiber, the newly-built optical fiber plant of China Optical Valley will also use the latest generation of PCVD equipment to proce high-performance multimode optical fiber, and the proction capacity will be increased by 4-5 times on the existing basis. DMD measurement is an indispensable technology in the research of new generation 50 / 125? Multimode fiber. Fiberhome communication has been prepared for a long time. The R & D personnel have collected and studied relevant technical data, purchased DMD measuring equipment, and carried out process research to eliminate rip defects< Fiberhome Communication Technology Co., Ltd. (Fiberhome communication) is an excellent provider of equipment and network solutions in the field of information and communication in China, and the only "863" plan achievement instrialization base in the field of optical communication in China recognized by the Ministry of science and technology of the people's Republic of China? China Optical Valley is one of the leading enterprises in China

the company was established in 1999, and Fiberhome A-share was listed on Shanghai Stock Exchange in 2001. Wuhan Research Institute of Posts and telecommunications, the main sponsor of Fiberhome communication, is the China Optical Fiber Communication Engineering Research Center and the birthplace of China optical communication. China's first optical fiber, the first optical communication project and a series of major scientific and technological achievements were all developed here

Fiberhome communication has mastered a large number of core technologies in the field of optical communication, and its scientific research foundation and strength, conversion rate and efficiency of scientific research achievements rank first in the same instry in China. It has participated in the formulation of more than 200 national and instrial standards. In recent years, Fiberhome communication has undertaken the national & quot; The R & D and instrialization of "40Gb / SSDH optical fiber communication equipment and system", "automatic switched optical network" and "tbpsdwdm transmission system development" in the 10th Five Year Plan represent the country's impact on the world's leading technology<

Fiberhome communication is the mainstream supplier of national infrastructure network construction, and its proct category covers three series of optical network, broadband data, optical fiber and optical cable,

the share of optical transmission equipment and optical cable ranks first in China, 100000 sets of equipment operate stably on the network, and more than 1 million picosecond km optical cable is equipped with national infrastructure optical cable trunk network; Ulhwdm, 3.2tdwdm and ASON systems, which represent the highest level in the instry, are first used in the national first-class trunk network of telecom operators; FTTH takes the lead in mature commercial... Innovative network equipment, perfect customer service and personalized solutions, and continues to create long-term value for customers. Beacon fire

4. Internship purpose: in order to consolidate the main business knowledge of communication engineering, improve the understanding of practical operation and proction skills, deepen the specific understanding of communication related procts and proction processes, and learn more about the knowledge beyond the textbook of communication, so as to provide better help for the future study of this professional course

foreword: through nearly a week's study, we have learned a lot from sensibility, which also has a profound impact on our future study and the determination of research direction. Through this visit internship, I have enriched my theoretical knowledge, enhanced my observation ability, broadened my vision, and made me have a qualitative understanding of my future work, which really made me gain a lot. Now the internship will visit the internship content, internship harvest, as well as the future direction of their own efforts and feelings of this three aspects to sum up

preparation work:

on September 1, we attended the mobilization meeting of cognition practice. At the meeting, the teacher in charge of the team explained to us the matters needing attention ring the practice and the unified arrangement of the practice in recent days, and encouraged everyone to be diligent in asking questions to the technical personnel ring the internship. I hope that through this internship, we can have a good understanding of the practice, So that we have a better and deeper understanding of this major< On September 2, under the guidance of our teachers, we took a bus to China University of Geosciences to visit the communication system laboratory there. There, we learned that the communication system Laboratory of China University of Geosciences is an important communication and information technology experimental teaching base for undergraates and postgraates, and an open laboratory integrating experimental teaching and scientific research. To provide a good training environment for the cultivation of innovative talents, and to provide a cooperation and exchange platform for school enterprise co construction. The overall goal of the system is to build an experimental platform

while following the teacher to visit, the internal teacher introced that the communication experimental system is composed of five hardware platforms and special communication software, including Huawei's Metro series optical transmission procts, C & C08 program-controlled switch, ma5300 broadband equipment, H3C layer 2 and layer 3 data communication equipment, wireless access, etc. With the support of special software (E-Bridge, T2000, etc.), each platform can set up both independent experiments and systematic experiments, and provide a variety of end-to-end communication solutions, which can accommodate 35 students to operate on the computer at the same time

relying on this platform, we can complete the teaching experiment, course design, proction practice, graation design and scientific research of communication and information major. The platform can cover the following courses: access network technology, program-controlled switching, optical fiber communication, SDH, computer communication network, information management and security, telecommunication signaling and communication protocol, multimedia communication, voice processing, image processing, communication principle, mobile communication, electromagnetic field and electromagnetic wave, etc. At the same time, the platform can support Huawei optical transmission network and H3C network training and certification services, and those who pass the certification examination can issue corresponding certification

for the future development of the sub laboratory, the teacher stressed that innovation comes from practice. Under the guidance of Premier Wen's school running tenet of "plain living, truth-seeking and pragmatic", the laboratory has been built into a first-class, fully functional, social oriented and innovative communication experimental teaching base in China< On September 3, we went to Changfei optical fiber and cable Co., Ltd. by car in the early morning to visit and practice. When we were in the hall, the relevant staff of the company introced us to the general situation of the company

founded in May 1988, Changfei company is jointly invested by China Telecom Corporation, Holland Drake Communication Technology Co., Ltd. and Wuhan Changjiang Communication Group Co., Ltd. It is the only professional manufacturer with integrated scale proction capacity of rod making, fiber drawing and cable forming in China. The company is located at No.4, Guanshan 2nd Road, Donghu hi tech Development Zone, Wuhan city. It covers an area of 150000 square meters, employs about 1000 people and has an annual sales of nearly 3 billion yuan. It is the R & D and proction base of optical fiber and cable procts with the most complete proct specifications, the most advanced proction technology and the largest proction scale in China

since it was put into operation in 1992, the proction and sales volume of optical fiber and optical cable procts of Changfei company has ranked the first in China for 16 consecutive years, with a total proction and sales volume of 52.5 million core kilometers of optical fiber and 1.23 million skin kilometers of optical fiber (36 million kilometers of optical fiber), with a total sales volume of more than 20 billion yuan. The procts are exported to more than 50 countries and regions such as the United States, Japan, Southeast Asia, the Middle East and Africa, and become the second largest optical fiber manufacturer and the fifth largest optical cable manufacturer in the world

since its establishment, Changfei company has explored a successful way to revitalize the national instry through introction, digestion, absorption and innovation

research and development center is a department of Changfei company specializing in the research of optical fiber and optical cable manufacturing technology, proction process, manufacturing equipment and materials for procts. It has 13 doctors and postdoctors, 54 masters, 103 undergraates and 22 senior technical experts, and is committed to the development and research of new optical fiber and optical cable procts with world leading level

up to now, Changfei company has obtained 109 National authorized patents, including 51 invention patents. At the same time, it also obtained a number of U.S. patents

at the same time, Changfei company has undertaken the national "Tenth Five Year Plan" key projects, the information instry technology upgrading project of the national development and Reform Commission, the national "863" project, the "science and technology promoting trade" project, the national torch plan project, the key projects of science and technology in Hubei Province, the "research and development of export mechanical and electrical procts" project of the Ministry of Commerce, and the key projects of science and technology in Wuhan, He won one national science and technology progress award, one Hubei science and Technology Progress Award and two Wuhan Science and technology progress awards, and participated in the formulation of ITU-T standard of ITU

in addition, Changfei company also vigorously carries out independent innovation infrastructure construction. It has been recognized as Hubei postdoctoral instrial base, Hubei provincial enterprise technology research and development center, Hubei optical communication material engineering research center, national "863" plan achievement instrialization base, China's information instry annual innovation enterprise, national enterprise technology center, Wuhan Optical Fiber Communication Engineering Technology Research Center< Since it was put into operation in 1992, Changfei company has proced and sold 52.5 million core kilometers of optical fiber and 1.23 million skin kilometers of optical fiber (36 million kilometers of optical fiber), with a total sales of more than 20 billion yuan. The proction and sales of optical fiber procts and optical cable procts ranked first in China for 16 consecutive years, and ranked second and fifth in the world respectively

in the domestic market, Changfei's optical fiber procts and optical cable procts are widely used in China Telecom, China Netcom, China Mobile, China Unicom, China Tietong and other communication operators, as well as electric power, radio and television, transportation, ecation, national defense, aerospace, chemical instry, petroleum and medical treatment, with a national market share of more than 40%

in the international market, Changfei has exported about 10 million core kilometers of optical fiber and cable procts. The procts are exported to more than 50 countries and regions such as the United States, Japan, Southeast Asia, the Middle East and Africa, with an international market share of more than 10%

while introcing modern proction technology, Changfei company has also introced modern management methods and systems, especially modern quality management proceres, so that every proction link of Changfei company is under strict and scientific quality control

in 1993, through the comprehensive audit of Kema company in the Netherlands, Changfei company became the first enterprise in the national optical fiber and cable instry to obtain the ISO9001 international quality system certification

in 2001, Changfei company adopted ERP system to start the enterprise resource planning system, from raw material procurement, contract review, proct proction, finished proct delivery to after-sales service, and implemented the whole process quality monitoring to ensure that procts, processes and services meet the needs of users< In 2002, Changfei company obtained the ISO 9001:2000 international standard certification, which indicates that the quality management system of Changfei company has developed from the original mode of introction and reference to the mode of self-improvement and continuous improvement

by 2007, its single light preform wire drawing length has exceeded 2000 km, and it has won the title of "top 500 Chinese manufacturing enterprises" and "the most influential enterprise of China's optical fiber and cable in 30 years"

following the staff, we visited the proction process of optical fiber and cable related procts, and had a good understanding of the whole preform proction< Since its establishment in 1999, Fiberhome has taken the instrialization of multimode optical fiber as an important task and implemented the leapfrog development strategy. First of all, in the original pilot plant, by improving equipment performance, adding new PCVD equipment, improving process technology and other measures, the annual sales volume of optical fiber in 2001 increased five times than that in 1999. At the same time, in Wuhan? Besides large-scale proction of single-mode optical fiber, the newly-built optical fiber plant of China Optical Valley will also use the latest generation of PCVD equipment to proce high-performance multimode optical fiber, and the proction capacity will be increased by 4-5 times on the existing basis. DMD measurement is an indispensable technology in the research of new generation 50 / 125? Multimode fiber. Fiberhome communication has been prepared for a long time. The R & D personnel have collected and studied relevant technical data, purchased DMD measuring equipment, and carried out process research to eliminate rip defects< Fiberhome Communication Technology Co., Ltd. (Fiberhome communication) is an excellent provider of equipment and network solutions in the field of information and communication in China, and the only "863" plan achievement instrialization base in the field of optical communication in China recognized by the Ministry of science and technology of the people's Republic of China? China Optical Valley is one of the leading enterprises in China

the company was established in 1999, and Fiberhome A-share was listed on Shanghai Stock Exchange in 2001. Wuhan Research Institute of Posts and telecommunications, the main sponsor of Fiberhome communication, is the China Optical Fiber Communication Engineering Research Center and the birthplace of China optical communication. China's first optical fiber, the first optical communication project and a series of major scientific and technological achievements were all developed here

Fiberhome communication has mastered a large number of core technologies in the field of optical communication, and its scientific research foundation and strength, conversion rate and efficiency of scientific research achievements rank first in the same instry in China. It has participated in the formulation of more than 200 national and instrial standards. In recent years, Fiberhome communication has undertaken the national & quot; The R & D and instrialization of "40Gb / SSDH optical fiber communication equipment and system", "automatic switched optical network" and "tbpsdwdm transmission system development" in the 10th Five Year Plan represent the country's impact on the world's leading technology<

Fiberhome communication is the mainstream supplier of national infrastructure network construction, and its proct category covers three series of optical network, broadband data, optical fiber and optical cable,

the share of optical transmission equipment and optical cable ranks first in China, 100000 sets of equipment operate stably on the network, and more than 1 million picosecond km optical cable is equipped with national infrastructure optical cable trunk network; Ulhwdm, 3.2tdwdm and ASON systems, which represent the highest level in the instry, are first used in the national first-class trunk network of telecom operators; FTTH takes the lead in mature commercial... Innovative network equipment, perfect customer service and personalized solutions, and continues to create long-term value for customers. Fiberhome communication adheres to the instrial road of sustainable development and plays an important role in information network security