Frequently Asked Questions

Q. What is resolution of the belt images on the monitor?
A. For a typical 1.5m wide belt travelling at 4.0m/sec the resolution (in both axis) is about 0.75mm/pixel.
Q. There are 10 conveyors in our mine. How many cameras, lights, imaging servers, and surface workstations should be used to provide double-sided inspection for all of them?
A. 20 Cameras, 20 Lights, 10 Imaging servers, 1 Workstation.
Q. Is the system specific for a particular type of mine?
A. No it is not. The only prerequisite is the presence of the communication infrastructure. Every imaging server connects to the surface workstation via at least 100Mb link.
Q. What happens if the light and/or camera optics gets dirty?
A. If the amount of dirt is significant the quality of images can deteriorate. The customer is responsible for providing cleaning solution . They range from regular manual cleaning to air curtain protection.
Q. Does the system produce any printed inspection report?
A. No it does not. However, reporting feature can be implemented if requested. The reason for that is that report normally has to be tailored to customer needs.
Q. How long does it take to bring to view an event image or any particular belt location?
A. It is instant.
Q. Are there any limitations on the belt length, width, or speed?
A. There are no practical limitations on the speed, width, or length of the belt.
Q. Does the system support colour images?
A. No it doesn't.
Q. Can I browse through the belt image from the start to the end?
A. Yes, you can, but it's not particularly practical. Say, if you spend 1 second to scrutinize 1 meter long belt fragment (it's what roughly fits on the screen), you need almost 3 hours to look thru 10 kilometre belt. It is where automatic inspection helps you.
Q. Is it a stationary solution or a portable one? Where and how is it mounted on conveyors?
A. It is stationary. The camera can be installed anywhere along the conveyor structure. There must be 2m distance between the camera and the belt. The presence of communication infrastructure is a must.
Q. Do environmental conditions underground affect the inspection results?
A. The water on the belt can result in increased number of false positives, but it does not represent a major problem as the final decision is made by the operator.
Q. What kind of failures (size, intensity, area, etc.) could be detected?
A. The detection algorithm is quite sophisticated. It picks up any significant abnormalities on the belt surface.
Q. Do you have to position the camera in the flat area or between idlers?
A. No difference. The system can look at the flat or curved surfaces. The most convenient place is the pulley surface, right after the scrapers. Normally there is enough room to install the system hardware.