[Senko Shoji x Carmate] Joint Development of 'Millimeter Wave Rear Collision Sensor 2' to Prevent Rear-End Collisions When Trucks Reverse
Carmate and Senko Shoji jointly released the 'Millimeter Wave Rear Collision Sensor 2' on April 1. Reflecting feedback from logistics sites, it improves installation and safety to prevent reversing accidents.
📋 Article Processing Timeline
- 📰 Published: April 10, 2026 at 23:00
- 🔍 Collected: April 11, 2026 at 00:23 (1h 23m after Published)
- 🤖 AI Analyzed: April 20, 2026 at 04:27 (220h 3m after Collected)
Carmate Corporation (President & CEO: Masaru Tokuda) and Senko Shoji Co., Ltd.* (President: Hideki Tsutsumi, hereafter 'Senko Shoji') jointly developed the 'Millimeter Wave Rear Collision Sensor 2 (Product Code: CT830/CT831)', which prevents collision accidents common when trucks reverse. The product was launched by Senko Shoji on Wednesday, April 1.
This system is the second co-developed solution, acting as a successor to the 'Millimeter Wave Rear Collision Sensor (CT820)' announced in 2023, which garnered significant attention. It reflects feedback from logistics frontlines to **advance safety and installability**.
*A group company of Senko Group Holdings Co., Ltd., a logistics enterprise.
## **Development Background**
In the logistics industry, accidents occurring when trucks reverse are a major management issue, leading to increased repair costs and liability risks. On the other hand, existing cameras and sonar-type sensors face challenges with blind spots and detection accuracy, leading to demands for more reliable accident prevention measures.
In response to requests from Senko Shoji, our company began jointly developing a reversing accident prevention system adopting proximity millimeter-wave sensor technology. After about three years of demonstration experiments and improvements, we launched the first-generation product in 2023. This second-generation system is an evolved model that primarily improves installability and visibility based on actual implementation records at logistics sites. The goal is to continuously expand safety solutions for the BtoB sector.
## New System Overview | Millimeter Wave Rear Collision Sensor 2 (CT830/CT831)
This product is a reversing assistance system where millimeter-wave sensors placed at four locations (top, bottom, left, right) on the rear of the vehicle highly accurately detect obstacles in blind spots that are hard for the driver to see. It provides real-time warnings via indicator sounds and lights installed in the cabin.
Compared to general ultrasonic sensors, it adopts the millimeter-wave method*, which is less susceptible to rain, dirt, and the shape of target objects, achieving stable detection performance that is largely unaffected by weather or operating environments.
**- Main Detection Targets -**
- Motorcycles, bicycles, and pedestrians behind the vehicle
- Walls and poles behind the vehicle
- Overhanging signboards and firefighting equipment
*** 'Millimeter-wave method'**
(Explanation continues...)
This system is the second co-developed solution, acting as a successor to the 'Millimeter Wave Rear Collision Sensor (CT820)' announced in 2023, which garnered significant attention. It reflects feedback from logistics frontlines to **advance safety and installability**.
*A group company of Senko Group Holdings Co., Ltd., a logistics enterprise.
## **Development Background**
In the logistics industry, accidents occurring when trucks reverse are a major management issue, leading to increased repair costs and liability risks. On the other hand, existing cameras and sonar-type sensors face challenges with blind spots and detection accuracy, leading to demands for more reliable accident prevention measures.
In response to requests from Senko Shoji, our company began jointly developing a reversing accident prevention system adopting proximity millimeter-wave sensor technology. After about three years of demonstration experiments and improvements, we launched the first-generation product in 2023. This second-generation system is an evolved model that primarily improves installability and visibility based on actual implementation records at logistics sites. The goal is to continuously expand safety solutions for the BtoB sector.
## New System Overview | Millimeter Wave Rear Collision Sensor 2 (CT830/CT831)
This product is a reversing assistance system where millimeter-wave sensors placed at four locations (top, bottom, left, right) on the rear of the vehicle highly accurately detect obstacles in blind spots that are hard for the driver to see. It provides real-time warnings via indicator sounds and lights installed in the cabin.
Compared to general ultrasonic sensors, it adopts the millimeter-wave method*, which is less susceptible to rain, dirt, and the shape of target objects, achieving stable detection performance that is largely unaffected by weather or operating environments.
**- Main Detection Targets -**
- Motorcycles, bicycles, and pedestrians behind the vehicle
- Walls and poles behind the vehicle
- Overhanging signboards and firefighting equipment
*** 'Millimeter-wave method'**
(Explanation continues...)