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HX17GD Ultrasonic Guidance System
The hx17gd is the first dedicated ultrasonic guidance system offered by Hexamite. Although Hexamite has possessed the technology to create a guidance system for years, sadly it isn't until now that it has become available. The ultrasonic guidance system is the inverse of the ultrasonic tracking system, here the fixed grid consists of transmitters, and the mobile object is a receiver. The receiver computes its position based on a map provided by the user see the (map.txt) file, this position is transmitted through the serial port of the receiver as it becomes available.. This system is ultra simple when it comes to the setup, and the overhead network governs itself. DC power needs to be supplied to the transmitters or (8 to 16 Vdc). All the transmitters need to be connected together using a four conductor telephone cable. This is necessary to allow the transmitters to synchronize. Large System
Small System
The mobile receivers calculate their own position and transmit the result through the serial port at baud rate 19200, 8bits, one stop bit, and no parity. Output format is [x, y ,z, time] or
The fixed length string is delimited with a carriage return and the string shown above says that transmitter number 1 was detected at X=02444, Y=02883, Z=02100 at time 0008231 * 0.0100352 seconds from start (synchronization). Positioning precision and repeatability is within 9mm over the entire field of coverage. The timing resolution is roughly 10mS and the timing accuracy is within +/- 10.0352mS, this is true to 50ppm crystal clock error. (for 3D (x,y,z) operation the overhead receivers cannot all be in the same plane) |
