The hottest Olympic performance, central control c

Editor's note: the breakthrough of modern swimming training and technology is the internal reason for athletes to significantly improve their performance, but in sports, scientific and technological progress is also a very important external factor, just as central control provides a core control system and excellent operation guarantee for the realization of excellent water quality and precise constant temperature in the water cube pool

the water cube's water events are nearing the end. Throughout the Olympic Games, the control system of the central control has been running well, and has always silently contributed to the success of Olympic athletes. At present, the athletes in the water cube have broken 19 swimming world records for a total of 52 times. The water cube has also been called the "magic" square of water and the "assembly line" of world records by the media. This series of titles undoubtedly lament the magic of the magical world of water cube for athletes

for the current Olympic Games, the aluminum Institute immediately organized researchers to set up a project team to start trial production. Why swimming events can break world records in such a large number, the world has investigated the reasons, from the fourth generation shark skin, the fifth swimming stroke, to the feng shui theory of "Beiding Niangniang Temple" in the Austrian standard, there are all kinds of strange things. As the engineering and technical personnel of central control, together with the control system of central control, they have witnessed the brilliant gold medal moments in the water cube all the time, and have their own deeper experience. With the improvement of sports competitive level, records have been refreshed one after another, which is mainly due to the hard training of athletes and the support of the team behind him; At the same time, the first-class competitive environment also gives them more space to display their talents, especially the water cube. From the exhibition, we learned that the pavilion design and series of equipment have greatly helped athletes improve their performance

lighting and ventilation

the installation angle of the roof lighting equipment of the water cube has been optimized, which eliminates the impact of lighting on Athletes' competition and provides an ideal competition viewing environment for the audience

there is a circle of vents above the grandstand wall on the first floor of the water cube, constantly blowing fresh air to the center of the pool. "At present, there are only two swimming pools in the world, except the water cube, which is the swimming pool in Sydney." Maohongwei, a member of the water cube design team and vice president of CSCEC international design company, said, "it provides sufficient fresh air for athletes, which is naturally conducive to their good swimming results." The speed of its blowing is also strictly controlled, which is less than 0.2 meters per second. Such a wind speed makes athletes hardly feel it and will not affect the competition

pool design

the overflow tank design of the water cube is also very advanced. Generally, the water waves generated by athletes in the process of moving forward will in turn produce resistance to athletes. In order to eliminate this adverse effect, overflow tanks are specially designed on the sides of the water cube swimming pool. In the pool where the pool side is higher than the water surface (i.e. high edge), the athletes at the most pool side track are often at a disadvantage, because they are vulnerable to the waves hit back by the pool wall, but the pool of the water cube is designed as "flush edge", that is, the water surface is the same as the height of the pool side, and the pool side is slightly downward with a slope, which is gradually submerged by the water, coupled with the function of the overflow tank, the water wave can be well reduced. In addition, when the athletes turn back, they will pedal the wall below the starting platform, and the excess waves generated at this time will also hinder the athletes' progress. The designer also considered this detail. An overflow tank is also installed on the pool wall to ensure that excess water can flow into the overflow tank quickly

excellent water quality

the turbidity requirement of swimming pool water quality in China is 5 NTU (NTU is the water quality turbidity unit), while the water turbidity of water cube is only 0.1 NTU. In 2005, fina wanted to raise the water quality requirement of swimming pools to 0.1 NTU, but many developed countries opposed it. They believed that this requirement was too strict to meet. There is no doubt that the better the water quality, the more conducive to the athletes' level of play. On January 28, 2008, the water cube was completed and delivered. After the ceremony, Liu Qi, Secretary of the Beijing Municipal Party committee, and Guo Jinlong, mayor of Beijing, leaned over and tested the water with their hands. The mayor even grabbed a handful of water and sent it to his mouth. Swimmer Qi Hui didn't even wear swimming goggles to prevent mistakes in the competition. After the competition, she said that the water quality of the water cube was too good to feel any stimulation. These are affirmation of the excellent water quality of the water cube

the water treatment system of the water cube adopts the automatic control system and control scheme of central control, which is cycled every 4 ~ 6 hours. In the process of water circulation treatment, due to the large capacity of the swimming pool (the volume of the swimming pool is 50 × twenty-five × 3M, there are 3750pekk materials in the whole competition pool. It is an ultra-high performance polymer with excellent strength, chemical resistance, low and high temperature resistance, radiation resistance and excellent wear resistance (ton of water). The water cycle cycle is long. Therefore, there is a serious time lag between the residual chlorine concentration and pH value concentration measured in the sampling outlet pipe and the amount of reagent invested in the circulating water, so that the control calculation becomes complex, It brings great difficulties to the control of physical quantities. In response to this problem, the engineers of the central control have formulated a rigorous positive and negative flushing procedure, a flexible debugging formula, and adopted the intelligent control scheme of target parameters, which has successfully ensured the realization of excellent water quality

precise constant temperature

according to the regulations of fina, the temperature of the swimming pool should be controlled between 25 ℃ and 27 ℃. However, the water temperature of the water cube has been accurately controlled between 26.5 ℃ and 26.9 ℃, and the difference is very small. Due to the large capacity of the swimming pool and the long water cycle, there is a serious time lag between the measured water temperature and the amount of heat medium added, which also makes the control calculation very complex, and a simple single loop simply cannot keep the temperature constant. In this regard, the automatic control engineers of central control have the courage to innovate, break through the technical difficulties, and control the temperature by fuzzy control in sections, so that the water temperature has been accurately controlled between 26.5 ℃ and 26.9 ℃. The small difference in water temperature in the water cube makes athletes feel very comfortable

the breakthrough of modern swimming training and technology is the internal reason for athletes to significantly improve their performance, but in sports, scientific and technological progress is also a very important external factor, just as central control provides a core control system and excellent operation guarantee for the realization of excellent water quality and accurate constant temperature in the water cube pool. First class athletes who strive to maximize economic and social benefits, first-class competitive environment, first-class service team, first-class logistics support! In the process of producing that medal, we achieved good control, stable operation and zero error! In this regard, central control also won a resounding gold medal for domestic DCS

central control has contributed its own strength to the brilliant achievements of the 2008 Beijing Olympic Games. We also expect that the automation system of central control can provide water cube experience for swimming venues across the country, and we look forward to walking with the 2012 London Olympic Games and more Olympic Games. I hope that the products and services of central control can serve all walks of life in the world more widely and contribute to the progress of mankind