Ultrasonic Positioning Components

Hx17gd ultrasonic guidance system devices.

The Receivers Hx17gdr

This device receives the signals from a number of transmitters, then it uses the signal time of arrival, to calculate its own whereabouts with respect to a pre-loaded map into its own EEPROM. The position of the receiver sensor is transmitted through the serial port of the receiver (FCC RJ11) baud rate is 19200, eight bits, one stop bit, no parity. The format of the ASCII coded output is: x,y,z,time, example:

03232,09881,03218,0000345

This indicates the receiver sensor is located at (x,y,z) (3232,9881,3218) and the timer increments once every 10 ms

Hx17gdr ultrasonic receiver
Power Supply		2.7 - 6 volts DC
Current Consumption Action	during 60mS computation	2mA
Current Consumption Idle		150uA
Size		80 x 50 x 20 mm / 3.2"x2"x0.8"
Port	FCC RJ11
Com parameters	19200,8,1,N

The Hx17gd transmitter

HX17gdt is an ultrasonic transmitter for the guidance system. Transmitter labeled 0 is always the transmitter that synchronizes the other transmitters on line. It is a 10 bit transmitter, hence able to create 1024 identities. This is the limit to the size of a single network. More networks can naturally be formed within different confines. Range is roughly 8 meters.

Hx17gdt ultrasonic transmitter
Power Supply		8 -16 volts DC
Current Consumption	Average	3mA
Ultrasonic Identities	10 bit	1024
Range		8 meters
Network Max Length	2 FCC RJ11 ports	10km
Size		50x50x20mm / 2"x2"x0.8"