Hello, I’m sorry if I’m posting in the wrong forum but I am wondering about the limitations of the Hagisonic StarGazer (product code: RB-Hag-06). I have heard that it has a problem when the landmarks on the ceiling are placed at different heights (i.e. not all of them are on the same level). I would also appreciate it if you inform me on any other limitations not mentioned in the StarGazer manual.
Thanks for the reply Coleman.
Say I am using landmarks of a specific type within their specified height range but the heights of the landmarks vary within that range. Will the StarGazer still function correctly?
Hi
I am new to this product and hope to hear from you if the product meets my requirements.
My requirement is to locate (and return geo-coordinates) moving object/human within a room. The accuracy should be in centimeter.
If I understood the landmarks system correctly, I can deploy a grid landmarks system to cover the room. The server will locate the object using these landmarks and give me the coordinate.
Please advise. Thanks.
John
You are correct - Hagisonic has three different sized patters for different ceiling heights (ranges). You also need to know that each pattern needs to be different (the manufacturer marks the number on the pattern, and we do our best to ensure customers do not get duplicates). The ceiling of course needs to be sufficiently lit, and steep ceiling angles are not great. The concept is fairly simple; the camera looks up and sees a flat pattern (in a specific orientation) which it then associates with a position and direction.
Yup. The issues arise when the camera has trouble deciphering the pattern; either because of the angle or because it is not appearing as the right size etc. Within the range and properly lit / placed you should not have issues.
The Hagisonic system uses an upward facing camera which detects “landmarks” placed on the ceiling. When it recognizes the landmark, it’s able to gauge its position and orientation. Not sure how you might implement this with humans. You might instead want to consider the Microsoft Kinect (one or more in the room). This is specifically used to detect humans and motion.
If you look up “Kinect body tracking” in YouTube, you’ll see many videos showing how people use the Kinect to track people within a room. Note that this is higher level programming.
There is no real size limitation, Basically each landmark will provide a coverage area that is proportional to its size and height. If you need more coverage, you will need more landmarks.
The difference between the two systems is that one includes the power supply, RS232 communication board and metal casing, and the other does not.
Coleman,
Are there any other limitations to the Hagisonic StarGazer besides ceiling height? Does it matter how large the room is, that is, how much area the ceiling takes up? I read somewhere that the room can't have a diagonal over 5 meters...is this correct?
Also, what is the difference between the $980.00 StarGazer system you sell, and the $1280.00 system?
Thanks, Dexter