Digital Signage Content that 'Visualizes on Floor Plans' and Notifies Heat Risk at Work Sites Launched on April 13
Office Kago Co., Ltd., in collaboration with Oak Information System, launched 'Plot version Heat Countermeasures with SisMil' on April 13, 2026. This digital signage content visually plots real-time heat indices on facility floor plans.
📋 Article Processing Timeline
- 📰 Published: April 23, 2026 at 20:00
- 🔍 Collected: April 23, 2026 at 11:31
- 🤖 AI Analyzed: April 23, 2026 at 13:39 (2h 8m after Collected)
Office Kago Co., Ltd. (Headquarters: 3-12-4 Hiroo, Shibuya-ku, Tokyo; CEO: Akiko Jo) announced that its real-time data visualization system 'hoyahoya *1' has been integrated with the environmental monitoring cloud 'SisMil *2' from Oak Information System Co., Ltd., an Obayashi Group company, to launch a new digital signage content titled 'Plot version Heat Countermeasures with SisMil' starting April 13, 2026.
We have released 'Plot version Heat Countermeasures with SisMil,' which can visualize the measured heat index data 'plotted on building floor plans and layouts'. This signage content allows intuitive sharing of where and how hot it is.
[Supplement: Free text editing function] The text area 'Manufacturing/Inspection Factory' on the screen can be edited as desired. Please use it for site names or calls to action.
Background of 'Plot version Heat Countermeasures with SisMil'
Against the backdrop of rising temperatures due to climate change, countermeasures against heat risks at work sites and facilities have become a critical occupational health and safety issue. While heatstroke prevention measures are increasingly becoming mandatory, there are site-specific challenges where conventional warnings alone fail to convey information adequately, leading to overlooked danger signs.
This content supports the creation of an environment where workers can easily notice heat risks through visual warnings.
Overview of 'Plot version Heat Countermeasures with SisMil'
The real-time data display system 'hoyahoya' is a system capable of displaying various real-time data, including weather and heat index data, with high visibility. Its implementation has been increasing not only in offices and public facilities but also in construction sites, factories, and schools where heat countermeasures are required.
This content takes data measured and automatically transmitted by 'SisMil,' the environmental monitoring cloud from Oak Information System, and links it with coordinates on drawing images uploaded to 'hoyahoya,' displaying the heat risk of the site so it can be intuitively grasped. It can be constantly displayed on on-site signage and automatically updates, allowing for strengthened heat countermeasures without adding operational burdens.
Three Features of 'Plot version Heat Countermeasures with SisMil'
1. Intuitive understanding of 'where it is dangerous' on site
By plotting measuring instruments on actual building drawings, the heat risk of locations can be grasped with a high bird's-eye view. Furthermore, danger levels are color-coded according to the WBGT value (e.g., Caution, Warning, Severe Warning, Danger, Extremely Dangerous), promoting intuitive understanding at a glance. Additionally, an alert icon is displayed for measurement locations where the temperature is 31 degrees Celsius or higher.
2. Constant display on signage (automatic updates)
By displaying it on monitors and signage on site, heat information naturally catches the eye during breaks or while moving. It can repeatedly and visually appeal to demographics that are hard to reach with just 'posters' or 'verbal warnings.' Because the displayed content is automatically updated, manual work on site is minimized, saving operational effort.
3. Usable in various facilities
Because of its simple mechanism of 'uploading image data of building drawings or layouts and registering the coordinates of measurement points on the screen,' it can be used in a variety of facilities.
- Manufacturing factories
- Logistics warehouses
- Construction and civil engineering sites
- Public facilities
- Schools
- Backyards of commercial facilities, etc.
Usage steps for the entire system
About both systems
Real-time data visualization display system 'hoyahoya'
A content service that designs, layouts, and displays various data acquired through API integration in an easy-to-understand manner in real-time for displays such as digital signage.
'hoyahoya' service site URL: https://ss.hoyahoya.app/
What is the environmental monitoring cloud 'SisMil'?
A cloud-based monitoring system that automatically measures temperature, humidity, and globe temperature with slave units installed in any location, and transmits the data to the cloud via a master unit. It allows centralized remote management of environmental measurement values such as WBGT *3 (heat index). By remotely monitoring multiple locations on-site or within a facility, it achieves labor savings in addition to early detection of heat risks and safety management.
'SisMil' product site URL: https://www.oakis.co.jp/sismil/
*1 'hoyahoya' is a registered trademark of Office Kago Co., Ltd.
*2 'SisMil' is a registered trademark of Oak Information System Co., Ltd.
*3 WBGT (Wet-Bulb Globe Temperature)
For the purpose of preventing heatstroke, it greatly accounts for the heat balance of the human body (heat exchange between the human body and the outside air).
We have released 'Plot version Heat Countermeasures with SisMil,' which can visualize the measured heat index data 'plotted on building floor plans and layouts'. This signage content allows intuitive sharing of where and how hot it is.
[Supplement: Free text editing function] The text area 'Manufacturing/Inspection Factory' on the screen can be edited as desired. Please use it for site names or calls to action.
Background of 'Plot version Heat Countermeasures with SisMil'
Against the backdrop of rising temperatures due to climate change, countermeasures against heat risks at work sites and facilities have become a critical occupational health and safety issue. While heatstroke prevention measures are increasingly becoming mandatory, there are site-specific challenges where conventional warnings alone fail to convey information adequately, leading to overlooked danger signs.
This content supports the creation of an environment where workers can easily notice heat risks through visual warnings.
Overview of 'Plot version Heat Countermeasures with SisMil'
The real-time data display system 'hoyahoya' is a system capable of displaying various real-time data, including weather and heat index data, with high visibility. Its implementation has been increasing not only in offices and public facilities but also in construction sites, factories, and schools where heat countermeasures are required.
This content takes data measured and automatically transmitted by 'SisMil,' the environmental monitoring cloud from Oak Information System, and links it with coordinates on drawing images uploaded to 'hoyahoya,' displaying the heat risk of the site so it can be intuitively grasped. It can be constantly displayed on on-site signage and automatically updates, allowing for strengthened heat countermeasures without adding operational burdens.
Three Features of 'Plot version Heat Countermeasures with SisMil'
1. Intuitive understanding of 'where it is dangerous' on site
By plotting measuring instruments on actual building drawings, the heat risk of locations can be grasped with a high bird's-eye view. Furthermore, danger levels are color-coded according to the WBGT value (e.g., Caution, Warning, Severe Warning, Danger, Extremely Dangerous), promoting intuitive understanding at a glance. Additionally, an alert icon is displayed for measurement locations where the temperature is 31 degrees Celsius or higher.
2. Constant display on signage (automatic updates)
By displaying it on monitors and signage on site, heat information naturally catches the eye during breaks or while moving. It can repeatedly and visually appeal to demographics that are hard to reach with just 'posters' or 'verbal warnings.' Because the displayed content is automatically updated, manual work on site is minimized, saving operational effort.
3. Usable in various facilities
Because of its simple mechanism of 'uploading image data of building drawings or layouts and registering the coordinates of measurement points on the screen,' it can be used in a variety of facilities.
- Manufacturing factories
- Logistics warehouses
- Construction and civil engineering sites
- Public facilities
- Schools
- Backyards of commercial facilities, etc.
Usage steps for the entire system
About both systems
Real-time data visualization display system 'hoyahoya'
A content service that designs, layouts, and displays various data acquired through API integration in an easy-to-understand manner in real-time for displays such as digital signage.
'hoyahoya' service site URL: https://ss.hoyahoya.app/
What is the environmental monitoring cloud 'SisMil'?
A cloud-based monitoring system that automatically measures temperature, humidity, and globe temperature with slave units installed in any location, and transmits the data to the cloud via a master unit. It allows centralized remote management of environmental measurement values such as WBGT *3 (heat index). By remotely monitoring multiple locations on-site or within a facility, it achieves labor savings in addition to early detection of heat risks and safety management.
'SisMil' product site URL: https://www.oakis.co.jp/sismil/
*1 'hoyahoya' is a registered trademark of Office Kago Co., Ltd.
*2 'SisMil' is a registered trademark of Oak Information System Co., Ltd.
*3 WBGT (Wet-Bulb Globe Temperature)
For the purpose of preventing heatstroke, it greatly accounts for the heat balance of the human body (heat exchange between the human body and the outside air).