FATIGUE AND COLLISION AVOIDANCE changes to the surrounding environment, the system contributes to improved operator awareness.
In Forward Mode, a warning is provided to the operator while driving, when approaching another vehicle on the road ahead. The approach warning is displayed in the driver’ s seat monitor with accompanying sound. This mode uses millimetre wave radar, which is effective in poor visibility conditions such as rain, snow, fog or dust.
Two types of warnings are provided to the operator based on the radar data, according to factors such as the approach distance and relative speed of the object. Through these warnings, the system contributes to the operator’ s awareness of the surroundings.
In addition to its use in the Aerial Angle system, the object detect assist technology is also being integrated into Hitachi’ s driverless autonomous dump trucks that are currently in development.
“ Hitachi Construction Machinery Group embraces the‘ One Hitachi’ concept of using the construction machinery technology that it has accumulated over many years in combination with its strengths in ICT, control and Internet of Things technology,” said Lamarque.“ Moving forward, we will continue to serve as a familiar and trusted partner by providing reliable solutions that resolve customer issues through collaborative creation.”
Proximity awareness
Caterpillar is introducing a new collision avoidance system, Proximity Awareness, for surface vehicles. Part of the Cat ® MineStar™ Detect capability set, the new system uses the latest peer-to-peer communications leveraged by the automotive industry. The system“ delivers fast and reliable communications between vehicles and presents collision avoidance information to operators without the need for a robust radio network covering the site.”
The onboard hardware can be fitted to light vehicles and to any brand of surface mining equipment. Fewer components are required compared to the previous Cat Proximity Awareness system, which uses a WiFi network. The result“ is reduced space required onboard vehicles, fast installation and lower cost.”
The onboard display can store up to 24 hours of incident data. This data is sent to the office for storage and analysis by using strategically located communications hot spots on site. Incident capture, playback and reporting are independent of MineStar Fleet.
Cat MineStar Fleet, Proximity Awareness and Object Detection can run on a single, in-cab display. The new Proximity Awareness system also features alarm tones that operators can easily distinguish from alerts delivered by other systems.“ When combined with Fleet in the office, enhanced reporting includes operator performance as related to the number of safety incidents. The new system retains the many features provided by the previous system, such as avoidance zones, speed zones, highly configurable machine envelopes and projected paths, operator notifications, incident capture and playback for training or incident reconstruction. Like the previous system, the new system is easy for operators to use. The Proximity Awareness system presents information to the operator via an intuitive graphic display in the cab.”
The system provides three onboard alarming levels. The zones, which define alarming, are customer configurable. Alarming priority ranges from low to critical. Low priority indicates the projected path of a machine is on course to collide with another machine, or it’ s following another machine too closely. Critical alarms occur when two or more machines have their closest zones intersect. If machines routinely are in close proximity, such as loading and hauling vehicles, alarm filters can be implemented between machines classes to silence non-critical warnings.
Caterpillar has also announced the availability of Cat ® MineStar™ Detect Object Detection systems for additional Cat machines and virtually all brands of mobile surface mining equipment. Previously unsupported Cat machines as well as other brands of machines can now be equipped with the cameras, radars and in-cab displays that
Caterpillar now offers object detection systems for all brands of mobile surface mining equipment
deliver increased site awareness to mobile equipment operators.
Object Detection kits are available with one to four cameras and as many as eight radars for applications ranging from small auxiliary equipment to ultra-class mining trucks.“ Functionality remains the same as the proven Object Detection system equipping Cat mining trucks from the factory and available as a factory option on several Cat wheel loaders and wheel dozers.”
The expanded line of retrofit kits enables enhancement of safety and standardising of mixed fleets for the benefit of operators and maintenance technicians. Object Detection is wholly contained on the machine and does not require the installation or operation of any offboard infrastructure. The system is also fully supported by Cat dealers.
Detect Object Detection is designed to work during machine startup and when a machine is travelling at low speeds. The system employs radar capabilities to automatically detect hazards such as other equipment or vehicles within critical zones around the machine – in front, at the rear and each side. The system also presents specific camera views to show the operator where potential hazards are detected. A proximity bar on the in-cab display flashes yellow or red, depending on the distance of the detected object. IM
JANUARY 2017 | International Mining 65