Ryoki Kogyo Co., ltd. help create a good living and working environment
Infection control measures
Ryoki Kogyo Co., Ltd.Was founded in 1930, was originally a refrigeration equipment manufacturers, today's core business is to install in eastern Japan air conditioning and water supply/drainage systems.The company's mission is to help create a good living and working environment, and contribute to creating a more sustainable society.They especially focused on improving air quality, to improve public health and improve the safety and comfort.
ProOptiment is Ryoki Kogyo living space infection risk control system, designed for public facilities, hospitals, education institutions and other places and large crowds gathered to design.ProOptiment can CO ₂ concentration, temperature and humidity measurement, at the same time, combining with the regional epidemiological data was obtained from the Internet, according to the quantitative risk of infection.ProOptiment can real-time monitor the atmospheric environment, according to the risk of infection/automatic control air conditioning ventilation, and air and humidity.More detailed information about the ProOptiment, please refer tohere(note - the page is Japanese version)
ProOptiment designed for medicine, aims to quantify the airborne infection risk of the hospital, thereby reducing the workload of medical staff.With the outbreak of the COVID - 19, people soon became clear that reliable infection prevention measures is crucial, should attach importance to and adopted.
Nowadays, Ryoki Kogyo goal is to focus on public area, with a large number of crowds gathered to reduce health risk of infection and even the whole society.They expected, as the global society and coronavirus coexist, statistical risk management will become more and more popular.In this case, we provide the risk indicators will be more and more important.
CO ₂ concentration measurement to control risk of infection if you have any good?
When people become crowded buildings, automatic control system can be used to start the ventilation fan.This can reduce the risk of infection in the crowded space.In the CO ₂ concentration measurement information for the control of variable control system has been widely adopted all over Japan.
However, if the CO ₂ concentration measurement information will be used for - the only basis for risk control system, there will be a problem.If community spread risk is relatively low, do not need a large number of outdoor air inhaled, otherwise may cause air conditioning energy waste.
For health care professionals trade-offs between energy demand and risk of infection, it is too demanding.With ProOptiment later, no need to perform manual operations.ProOptiment ventilation can be run with the associated risk of infection, rather than merely relying on CO ₂ concentration measurement, which helps you to control the risk of infection, reduce the workload and energy-efficient.
"Our main goal is to reduce the financial burden on users, visual display risk of infection, according to the specific data take preventive measures, and through these measures to control ventilation", Ryoki Kogyo Co., ltd. solution development manager Masahiro Renda said.
ProOptiment using the visa pull GMD20 series CO ₂ transmitter, GMW80 CO ₂ (temperature and humidity transmitterGMW83DRP,HMS82) andGMP252CO ₂ probe.
"ProOptiment measuring instrument is used in the modular, ensures simple installation and replaced.This means that users can enjoy stable supply and flexible after-sales service advantages.We also can use a real-time processing in the process of change."Masahiro Renda said."When choosing CO ₂ sensor, should not only consider the price range, but also consider functions and specifications," he continued."For example, where there is a large crowd gathered, and we also have to prove its safety and comfort, so it can be display and color range has become important selection criteria."
CO ₂ concentration measurement to calculate the importance of the risk of infection
"The most important factor in calculating the risk of infection is indoor CO ₂ concentration.However, by compared with outdoor CO ₂ concentration, thus accurate judgment CO ₂ concentration increase amplitude is also very important.Both factors directly affect the calculation, and necessary for the system itself, so we want to find the CO ₂ sensor accuracy as high as possible."Masahiro Renda said.
The following trial shows the CO ₂ the importance of the precision of the sensor data provided.
When indoor CO ₂ concentration from 1190 PPM to 1290 PPM, if there are 500 people, the possibility of infection will increase by 2%.When has 3000 people infected with the possibility of infection will increase by 10%.For example, if there is a flu, 100% 0.19% risk of infection by default will be converted to alarm, the system will alarm/control execution.
(1) air purifier (install more than one) (2) the UVC equipment (install more than one)
Risk of infection by two values to calculate: CO2 concentration difference between indoor and outdoor air, and infections.Increased infections will also change affected the error of measurement value of CO2 and so cannot tell how much overall impact.
"There are many different CO ₂ sensor manufacturers, there are also sold as a CO ₂ sensor devices, they also can measure other gas.Long ago, we had a particularly painful experience, the use of another company is not reliable and unable to perform calculations of CO ₂ sensor correctly.We are looking for can use the diffuse infrared (NDIR) measurement method for precise measurement of CO ₂ sensors, finally found the accuracy is very high visa CO ₂ sensor.I remember when I learned that it even have automatic correction function, really feel very surprised.And, more importantly, it also provides 5 year warranty, so we can be in a very long period of time has a high precision measurement data."- Masahiro Renda
"In addition, only when the replacement module replacement sensors, this also is very convenient, a major advantage for the user, that is no maintenance", Masahiro Renda concluded.Comparison test can be used to help us choose and ProOptiment collocation use CO ₂ sensors.Comparison of CO ₂ concentration measurement data can be clear sensing precision difference.We should be actively to reduce the risk of infection, let everyone in public places are safer.
Used for high precision CO ₂ measurement technology
Visa with single light source, the diffuse infrared measurement (NDIR) technology with double wavelengths CO ₂ concentration measurement.All visa CO ₂ sensors are usedCARBOCAP ® technology,.Visa CO ₂ pull sensor using the micro mechanical tuning method in - Perot Interferometer (Fabry - Perot Interferometer, FPI) filter.The wavelength of the filter can choose to measure.Can choose to be absorbed by the CO ₂ wavelength to CO ₂ concentration measurement, not absorbed by the CO ₂ wavelength standard measurement.This filter can help correction by light degradation or light path CO ₂ concentration measurement error caused by the pollution, then from the source to eliminate the use of other manufacturers NDIR sensors usually encountered when the measured value of the drift.
"If indoor and outdoor have CO ₂ sensor, can ensure the calculation more accurate.Some users think in outdoor installation CO ₂ sensor is difficult, but only in the interior might appear when measurement error, so we still suggest measuring indoor and outdoor data "at the same time, Ryoki Kogyo CO., ltd. solution development manager Masahiro Renda said.
In more than a year, we in many medical institutions CO ₂ concentration measurement of field test.After the application without a cyclical or unexpected problem, also no measured values of drift.In a medical institution, the use of heat exchange after the ventilation systemInfection risk was reduced by 30%And none of them has a negative impact on the air conditioning or heating performance.At the same time,Because of increased ventilation, save the energy consumption by 87%.
Use the humidity measurement technology make up man's intuition
Besides CO ₂ concentration measurement, ProOptiment also built a function, namely, measuring the temperature and humidity forecasts average votes (PMV).PMV is an important index in the field of air conditioning, because it embodies the thermal comfort in nature.Generally speaking, the people to the sensitivity of the humidity is lower than the sensitivity of the heat, so a lot of people to their own discomfort and potential health problems linked to changes in humidity, even if they actually exist between relations.Therefore, people can use the humidity measurement technology to make up for intuition.
"I think in some cases, the automatic control function can help people who can't express their own discomfort, such as patients in the medical institutions.In addition, due to the mobile and stationary calculation method is different, so even in the same facility, also can change the parameters according to different purpose, such as sitting in the waiting room a lot of people, and most people within the entertainment facilities are moving, "Ryoki Kogyo Co., ltd. solution development department head Yasuo Takano said.
"Can also be configured in the installation more stringent standards than automatic control to take preventive measures, for example, to have a higher risk of immunocompromised patients suffering from infectious diseases.Visual alarm can also be kept as, at the same time, only the configuration control in advance.Can change control system for each type of pathogen, and customized for each facilities."
- Ryoki Kogyo Co., ltd. solution development department head Yasuo Takano
Because of the flexible configuration options, so ProOptiment very human.Visa, provide a wide range of CO ₂ concentration, temperature and humidity measurement for products, including in a device to measure the three indicators can be installed type of indoor air quality (IAQ) sensor, and can be installed in any place of high precision modular CO ₂ sensors.
New concept in the automatic control system
"Hvac is the main focus of our business, so we have own IoT concept of using sensors.In recent years, we have to use the opportunity of sensor data increased significantly.In the future, I think the sensor data used in all areas of society will be more and more common."Masahiro Renda said."We see that in the future, using the sensor data) for remote monitoring will become carbon neutral, energy saving, labor shortages and basic technology of predictive maintenance such as social problems."Yasuo Takano continued.
In order to use this system to realize high efficient and intelligent management, must fully understand the CO ₂ sensor types and features on the basis of choosing CO ₂ sensors, such as facilities, how to collect data, facilities installed in the best position of each CO ₂ sensor, how in the process of the installation and wiring.Visa has a wide range of high precision pull CO ₂ concentration measurement sensor, the sensor is easy to install and can be used as a system module.
In addition, cutting-edge intelligent management system should be able to collect facilities and operation data, and implementation of remote control.Remote operating unmanned facilities, to the factory multifunctional applications such as lighting and air conditioning system control orders, will lead to more effective energy saving measures and the improvement of working environment.In addition, if you can resolve the shortage of public health, labor and environmental measurement and safety problems, such as the potential of our social life will be greatly expanded.Visa, has always been committed to become a reliable partner system development company, creating value for the future together.RyokiKogyo 的 ProOptiment 感染风险管控系统通过测量 CO₂ 浓度和感染风险来实现这一目标，让公共场所中的每个人都更安全。
Want to learn more about visa, hvac solutions?Please refer to the nextInfosys how to use the visa of hvac sensors to monitor the indoor air quality, or browse ourHvac measurementPage, explore more interesting subject.
