Position and orientation locator/monitor
First Claim
1. In a system in which a transmitter for producing a dipole magnetic field is steered through the ground and in which a receiver operates responsive to said magnetic field, an apparatus comprising:
- a multimode arrangement, forming part of said receiver, which is configured to operate alternatively in a first, locating mode and in a second, homing mode such that the receiver operating in said first mode, characterized by staged movements of the receiver in said region to respond to said magnetic field to determine a current location of the transmitter relative to a current position of the receiver, and the receiver, operating in said second mode and positioned at a fixed location, responds to said magnetic field by establishing a homing path, for any given position of the transmitter and the fixed location of said receiver, along which homing path said transmitter is steerable toward said fixed location.
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention provides a locator/monitor capable of locating a boring tool and monitoring the progress of the tool for control purposes. The locator/monitor may be used in expedited locating methodology and straightforward calibration techniques of the present invention. A durable and cost effective pitch sensor is also provided by the present invention. In addition, the present invention provides a slotted transmitter housing formed of an electrically conductive material, where the magnetic field generated by the transmitter is capable of penetrating to the surface.
42 Citations
25 Claims
-
1. In a system in which a transmitter for producing a dipole magnetic field is steered through the ground and in which a receiver operates responsive to said magnetic field, an apparatus comprising:
a multimode arrangement, forming part of said receiver, which is configured to operate alternatively in a first, locating mode and in a second, homing mode such that the receiver operating in said first mode, characterized by staged movements of the receiver in said region to respond to said magnetic field to determine a current location of the transmitter relative to a current position of the receiver, and the receiver, operating in said second mode and positioned at a fixed location, responds to said magnetic field by establishing a homing path, for any given position of the transmitter and the fixed location of said receiver, along which homing path said transmitter is steerable toward said fixed location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
11. In a system in which a transmitter for producing a dipole magnetic field is steered through the ground and in which a receiver operates responsive to said magnetic field, said receiver comprising:
-
an antenna that is configured for receiving said dipole magnetic field to produce an antenna output signal; at least one receiver section for receiving said antenna output signal to produce a digital receiver output; and a processor which is configured to operate alternatively in a first, locating mode and in a second, homing mode such that the receiver operating in said first mode, characterized by staged movements of the receiver in said region to respond to said digital receiver output to determine a current location of the transmitter relative to a current position of the receiver, and the processor, operating in said second mode and positioned at a fixed location, responds to said digital receiver output by establishing a homing path, for any given position of the transmitter and the fixed location of said receiver, along which homing path said transmitter is steerable toward said fixed location.
-
-
12. In a system in which a transmitter for producing a dipole magnetic field is steered through the ground and in which a receiver operates responsive to said magnetic field, a method comprising:
configuring said receiver to operate alternatively in a first, locating mode and in a second, homing mode such that the receiver, operating in said first mode, characterized by staged movements of the receiver in said region to respond to said magnetic field by determining a current location of the transmitter relative to a current position of the receiver, and the receiver, operating in said second mode and positioned at a fixed location, responds to said magnetic field by establishing a homing path, for any given position of the transmitter and the fixed location of the receiver, along which homing path the transmitter is steerable toward said fixed location. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
Specification