Source: Perception Core Vision; compiled and released by "Chongqing Internet of Things Industry Association"
Relevant data show that the income of other related industries driven by ice and snow sports involved in the 2022 Beijing Winter Olympics will reach more than 300 billion yuan, and in this 300 billion yuan of industrial cake, infrastructure construction is the highlight. At present, more and more sensors are interconnected and distributed in various types of Winter Olympic infrastructure facilities, which will provide valuable and useful information for facility managers.
Snow Dragon Warning: Provide security services with the help of sensors
Capital Institute of Physical Education has created a sports health sensing network system integrating Beidou high-precision spatio-temporal technology, which combines sensing technology, positioning technology, sports big data and artificial intelligence analysis technology with human movement science, which is an important scientific and technological innovation and basic information construction in the field of sports health, and has been built in Yanqing Alpine Ski Base to directly serve the Winter Olympics.
Through the integration of Beidou high-precision positioning technology and high-precision laser wind radar technology with other meteorological sensors, the system can establish high-precision position grid real-time meteorological data for the Snow Sports Venue of the Winter Olympic Games, provide meteorological monitoring data and early warning information for ultra-sports conditions for the event support department, and provide scientific support for the environmental guarantee decisions of the Winter Olympic Snow Sports Events and daily sports training.
Big Dipper + Winter Olympics
In addition, the Yanqing Division is in the undulating mountains, on the mountain road to the race, natural disasters may occur at any time. In order to be able to monitor the occurrence of disasters in real time, from the Hanquan service area of the Jingli Expressway to the core area of the Yanqing Race Area, a number of natural disaster forecast monitoring sensors have been installed along the highway, these sensors are called "microcore piles", which integrate remote sensing remote monitoring and ground sensing technology, and cooperate with the background terminal, which can warn of various natural disasters that may occur in advance in real time and provide security services for the Winter Olympics.
"Microchip pile" sensor
High-tech sportswear: high-energy "battle robes" with the help of sensors
Sports science and technology will play a key role in improving the level of participation, and improving the scientific training and high-tech sports equipment will become the key direction of technical research. The high-tech sportswear with built-in sensors is one of the research and development hotspots in preparation for the 2022 Beijing Winter Olympics, and a "battle robe" has gathered the painstaking efforts of scientists. The race suits rich in scientific and technological power have also been used in many competitions, such as speed skating, short track speed skating, alpine skiing, snowmobiling and so on.
Wind tunnel tests are often used in the development of modern aircraft, missiles, rockets, buildings, bridges, etc. Winter sports are generally fast, alpine skiing speeds of up to 130 km/h, even if there is no wind, it is like traveling through high winds. How to reduce the wind resistance is related to the performance of the game, and 0.01 seconds is precious.
Powerful sensors provide data support when athletes wear "suits" for wind tunnel tests. "Sensors sense and track the internal movement of muscle fibers, and report the movement status of each part of the muscle through the app." Researchers say this can help athletes improve their training in a targeted manner.
High-tech sportswear with built-in sensors
Magical Winter Olympics Cabin: Automatic opening and closing thanks to sensors
At present, more and more sensors are interconnected and distributed in various types of Winter Olympic infrastructure facilities, which will provide valuable and useful information for facility managers. The professional team of Wujiazhuang in Dingfang Water Town, Xiayuan Garden, Zhangjiakou City, has built a 30-square-meter tourist reception center, which is an intelligent cabin using sensor technology.
A smart cottage at the Wujiazhuang Tourist Reception Center
The building is an interactive building that changes shape as the climate changes. How to achieve automatic opening and closing of the cottage? This uses ubiquitous sensor monitoring technology.
The first is the sensor system that collects environmental information, such as temperature sensors, humidity sensors, wind sensors, etc.; secondly, the software hub control system, which is responsible for calculating the collected information according to the set requirements and issuing instructions; and finally the mechanical device mounted on three panels, when the system receives the instructions issued by the hub, it will execute the command to push the panel to the appropriate position. When the three panels of the hut are fully opened, it becomes a stage for the performance, and the audience sits on the slope steps on the surrounding slope to watch the performance freely.
When the outdoor temperature is 16 to 29 degrees Celsius, the temperature and humidity sensor in the sensor system can accurately monitor the temperature change, and the data is transmitted to the central control system, which then starts the mechanical device, so that the three panels will be opened at different angles to ensure natural ventilation and outdoor scenery in the building.
Similarly, when the outdoor temperature is lower than 16 degrees Celsius, the temperature and humidity sensor will also quickly perceive, and after transmitting the sensor data to the other two systems, the three panels will finally be automatically closed, and the coiled floor heating system will be started at the first time for heating. In addition, when the outdoor temperature is higher than 29 degrees, the three panels will automatically close and start the air conditioning system for cooling, and when it is windy or rainy, the three panels will also be closed to prevent wind and rain erosion.
Sensing weaves the "ice ribbon" of the Beijing Winter Olympics
As the only newly built ice competition venue, the National Speed Skating Hall "Ice Ribbon", it has contributed to the world the "Chinese Plan" for the construction of Olympic venues composed of Chinese design, Chinese technology, Chinese materials and Chinese manufacturing. Among them, the team of Professor Luo Yaozhi of the School of Civil Engineering and Architecture of Zhejiang University and the wireless sensing team of Professors Deng Hua and Yuan Xingfei have provided important scientific and technological strength for the construction and operation and maintenance of the "ice ribbon" super-span cable network structure.
"Ice ribbon" in construction
The roofing system of "Ice Ribbon" adopts hyperboloid saddle-shaped single-layer cable net structure, which is currently the world's largest span of single-layer two-way orthogonal saddle-shaped cable net roofing gymnasium. During the construction process, the force state of these steel cables is very critical, and a little carelessness will affect the construction quality and safety. In order to better understand the status of the steel cable, Luo Yaozhi's team installed wireless sensors independently developed by Zhejiang University in the construction process for real-time monitoring and mechanical analysis.
In the construction process of the cable net, the process of "first assembling on the ground and then lifting the whole" is adopted, but due to the space limitation of the site, the steel cable laid on the ground waiting for tension needs to be slightly arched to cross the "bottleneck". Without accurate data support, no one can easily order the bending of a steel cable of several tons. The construction party commented: "Zhejiang University's wireless sensor is like a pair of eyes, tightly 'staring' at the whole process of construction of the project. ”
Beijing "Ice Ribbon" (Source: Xinhua News Agency)
Not only does it play a role in construction, but now the "ice ribbon" after construction still measures the "pulse" and "heartbeat" through the way of "health doctors". "Getting the data, transmitting the data, and processing the data are the whole process of our monitoring and analysis." Professor Xu Xian of Professor Luo Yaozhi's team said that the team monitored the stress, displacement, acceleration, temperature, wind pressure, soli force and other six major parameters of the speed skating hall, and the number of test points also reached more than 1,000, which set a record for a single building structure.
The "intelligent sentry robot" guards the Winter Olympic Games, and the temperature measurement accuracy error is 0.1 degrees
As a professional ski track for the Winter Olympics, Chongli Ski Trail is far higher than the entertainment ski slope of the same level in terms of meandering and length, and the ski "Little White" is here, almost step by step. However, the monitoring equipment equipped with the snow field, the "intelligent sentry robot" with AI monitoring function, with the multi-spectral sensor as the core, through its own power supply energy storage system, anti-intrusion intelligent all-in-one machine, can be monitored in complex environments such as night and bad weather, with target recognition, multi-target tracking, foreign object detection, crossing warning and other functions, and at the same time, it can carry out automatic operations such as alarm recording, record upload, alarm warning and so on through sound and photoelectric equipment, communication modules, etc., effectively improving staff efficiency To improve the efficiency of stopping dangerous behavior.
Smart Sentinel robot
From the ground to the sky, the Beijing Winter Olympics weave a tight meteorological detection network
More than 1 minute to identify the status of snow on the snow project track, 6 minutes automatically give a set of observation points above the height of thousands of meters above the wind field observation data...
In order to provide a good meteorological data service guarantee for the Beijing Winter Olympic Games, the Aerospace New Meteorological Company affiliated to the 23 institutes of the Second Academy of China Aerospace Science and Industry Group provides meteorological radar, automatic weather stations, snow temperature snow-like observers and other multi-type meteorological products for the three major competition areas, multi-dimensional "pulse" weather, obtain meteorological element information of different heights, different ranges and different categories, and provide services for the construction of the meteorological forecast monitoring network of the Winter Olympics with minute-level and gridded meteorological data.
"Sichuan-made" radar, "wind catching" on the ski track
Snow sports are an important part of the Winter Olympics. The geographical environment of the ski track is special, the wind field situation is complex and changeable, and the athletes are very susceptible to the influence of sudden longitudinal winds and crosswinds in the process of high-speed decline, especially when doing skiing aerial skills, which affect the performance of the competition and endanger the safety of athletes. Therefore, real-time monitoring and danger warning of longitudinal and crosswinds on the track can ensure the smooth holding of ski competitions.
The FC-III. type laser wind measurement radar from the Laser Institute of China North Industries Group, a central enterprise in Sichuan, came in handy. It is based on the principle of coherence detection, using the laser as an illumination beam, by receiving the scattered echo signal of the beam to the aerosol that drifts with the wind in the atmosphere, and obtaining the Doppler frequency shift of the aerosol relative to the laser beam through digital frequency identification technology, and finally realizing the measurement of atmospheric wind field information.
Ensure the safety of the Winter Olympic site, and take up the post of "reconnaissance guard" of geological disasters
The main battlefield of the Beijing 2022 Winter Olympics is on the snow, of which the National Alpine Ski Center is located on Xiaohaituo Mountain in Yanqing, with a total of 7 ski trails, a total length of 21 kilometers, and a drop of about 900 meters. However, the geographical conditions of the Yanqing Winter Olympic Site are special, and large-scale human engineering activities will have a certain impact on the surrounding ecological and geological environment.
How to monitor and warn of the safety of the geographical conditions and infrastructure of the Winter Olympic venues (venues)? Focusing on the whole stage of the Winter Olympic Games, during the Games and after the Games, under the deployment of the Beijing Municipal Science and Technology Commission and the Zhongguancun Administrative Committee, the Zhongguancun Zhilian Safety Science Research Institute has carried out integrated security monitoring and early warning services based on the early identification of hidden risk areas, remote periodic detection and on-site real-time monitoring technology routes through aerospace remote sensing, remote laser vibration measurement, microchip intelligent sensing and other technologies, and built a security situational awareness network platform to achieve multi-source information fusion analysis based on professional models and artificial intelligence technologies, greatly improving the accuracy of risk prediction. The effectiveness of early warning and the accuracy of information delivery will achieve the goals of the Winter Olympics of Science and Technology and the Winter Olympics of Safety.
A variety of robots, intelligent killing patrol
Atomization disinfection robots, ultraviolet disinfection robots, "small white" inspection robots come in handy, and environmental disinfection, prevention and control inspection, and personnel disinfection can be completed only by these intelligent devices.
According to the technical staff, the atomization disinfection robot can hold 16 liters of disinfectant at a time, spray the agent through the four-way spray head overhead, and operate the robot with only one mobile phone APP. "This little guy also has vision sensors and lidar on the chassis, which is equivalent to two small eyes. By using lidar to scan the road ahead, vision sensors identify road conditions in more complex environments, easily avoid obstacles and perform disinfection tasks. ”
The top of the inspection robot "Xiaobai" is also equipped with non-contact hand disinfection equipment. When it patrols, it can stop anytime and anywhere to provide hand sanitizer for people. During the 30 seconds it stays, if hand sanitizer is required, the user simply places his hand on the infrared sensing part of the disinfection device above his head to obtain a hand-sanitizer gel.
Put a band-aid under your armpit to monitor your body temperature at all times
As we all know, band-aids are used to bandage wounds, but one of the "armpit band-aids" used in the Winter Olympic test matches is a solid black technology. This scientific name is "wearable thermometer and epidemic prevention and control 'clairvoyance' system" is currently the world's smallest and most accurate wearable continuous intelligent temperature measurement device, with high precision, low power consumption, small size and easy to wear advantages.
It is understood that the chip sensor of the wearable thermometer is only the size of a sand grain. People who need to take temperature only need to use a band-aid, or skin sticker, fix the smart thermometer on the skin under the armpit, and then use the mobile phone to download the "Anxin Measurement" App, bind the device, and the temperature data changes will be clearly displayed on the mobile phone page, and can realize automatic measurement and automatic reporting in the background. Once an abnormal body temperature is detected, the remote inspector will issue an early warning.
The variable angle of the "Snow Ruyi" ramp elevator
"Snow Ruyi" is China's first Winter Olympic ski jumping site that meets international standards, and its top drop from the ground is as high as more than 160 meters. Helping athletes and others to achieve fast passage from the top to the ground of the "Snow Ruyi" during the Winter Olympics is a problem that cannot be ignored. The angled ramp elevator next to "Snow Ruyi" was born.
Elevator tracks are built on complex physical movements, and it is not easy to run smoothly and quickly. Technicians have built the world's fastest ramp ramp elevator with equipment and technical commissioning such as horizontal sensors, servo drives and anti-overturning devices.
Billion-level pixel array image sensor light field camera
Wukesong Sports Center, a 100-million-level pixel array image sensor light field camera from Humble River Technology, is an important member of the accurate epidemic prevention and monitoring of the event area. No movement in the stadium can escape the "magic eye" of this 19-camera sensor-like light field camera.
The original array camera design breaks through the limit of single optical lens and sensor resolution, so that it can fully cover the monitoring of the competition area and spectator area of the event venue, and at the same time can ensure the clear presentation and recording of every detail, and excellently complete the real-time recording of events in the venue, non-touching face recognition and tracking tasks.
Athletes' apartment intelligent environmental detector
Another highlight in the athlete's apartment - The Mailock PMT200 intelligent environmental detector, in addition to air detection, home appliance control and other functions, can also be linked with the outdoor micro weather station, thereby adjusting the indoor air quality, the low carbon and environmental protection to the extreme.
Temperature monitoring of passers-by is faster and more accurate
During the Winter Olympics, the "infrared array fusion temperature measurement module yy-m32a" developed by Shanghai Yeying Microelectronics Technology Co., Ltd. was applied to the thermal imaging temperature measuring machine and the human ID verification terminal equipment in the Chongli Competition Area of Zhangjiakou to help the temperature monitoring of the passers-by in the competition area and inject temperature "core" protection into the Winter Olympic Venue.
Yeying Microelectronics adopts efficient infrared sensing microstructure design, which can greatly improve the conversion efficiency of the thermopile microstructure "light-heat-electricity", and the product is more accurate in terms of ambient temperature detection accuracy, which can achieve 0.05 °C temperature measurement accuracy. The "infrared array fusion temperature measurement module yy-m32a" product applied to the Winter Olympics not only inherits these advantages, but also further upgrades these advantages, with non-contact, fast response, long-distance temperature measurement and other characteristics.
The "eyes" on curling
Curling is a very traditional winter game known as "chess" on ice. Because curling has strict technical requirements for venues and equipment, many advanced technical means are used in the special equipment for competitions.
Smart sensors are placed in the handle of the curling that can monitor the presence of the athlete holding the handle in his hand. In addition, as a method of judging whether the throwing distance of athletes is illegal, it avoids the high error rate and inconsistency seen by traditional referees with the naked eye. Enables each discriminant to be quantified simultaneously.
The handle of the pot is equipped with a red and green indicator light, and it can transmit signals. If the curling thrower's hand holds the curler beyond the limits of the magnetic identification sensor, it is considered a throwing violation and requires the referee to make a relevant penalty. If the thrower releases the hand holding the handle of the pot before the magnetic identification sensor, the throw is valid.
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