Dual channel wireless communication system for monitoring and/or control of a machine (112), such as a press brake, by a remote interface device (10,12) that communicates data with a machine controller (18) over two channels CH1, CH2 in parallel. Also, a system and method to determine whether a remote interface device (10, 12) is within a range or zone of a machine (112) that the remote interface device wirelessly monitors and/or controls, uses an ultrasound transmitter-receiver arrangement (100, 102) and an electromagnetic (EM) transmitter-receiver arrangement (104, 106, 108, 110) to determine difference in ultrasound and EM time of flight and therefore whether or not the remote interface device is permitted to monitor and/or control the machine or is within range to monitor and/or control the machine.

Dual channel wireless communication system for monitoring and/or control of a machine (112), such as a press brake, by a remote interface device (10,12) that communicates data with a machine controller (18) over two channels CH1, CH2 in parallel. Also, a system and method to determine whether a remote interface device (10, 12) is within a range or zone of a machine (112) that the remote interface device wirelessly monitors and/or controls, uses an ultrasound transmitter-receiver arrangement (100, 102) and an electromagnetic (EM) transmitter-receiver arrangement (104, 106, 108, 110) to determine difference in ultrasound and EM time of flight and therefore whether or not the remote interface device is permitted to monitor and/or control the machine or is within range to monitor and/or control the machine.

A method includes communicating first and second signals between a first node and a second node, where the first signal includes a sonic signal and the second signal includes an electromagnetic signal. The method also includes using the electromagnetic signal to one of start or stop a timer and using the sonic signal to another of stop or start the timer. The method further includes identifying a one-way time-of-flight associated with the sonic signal traveling between the first and second nodes using the timer. The one-way time-of-flight associated with the sonic signal is indicative of a distance between the nodes.

Systems and methods for locating an obstruction or leak in a conveyance. The systems include an emitter operable to emit a signal or signals through the conveyance. The systems further include a receiver operable to receive a reflected signal or signals from the obstruction or leak. The systems further include a processor programmed to analyze the received reflected signal and determine the location of the obstruction or leak in the conveyance. The methods include emitting a signal or signals from an emitter through the conveyance, receiving a reflected signal or signals reflected from the obstruction or leak with a receiver, and analyzing the received reflected signal or signals using a processor to determine the location of the obstruction or leak in the conveyance.

Systems and methods for locating an obstruction or leak in a conveyance. The systems include an emitter operable to emit a signal or signals through the conveyance. The systems further include a receiver operable to receive a reflected signal or signals from the obstruction or leak. The systems further include a processor programmed to analyze the received reflected signal and determine the location of the obstruction or leak in the conveyance. The methods include emitting a signal or signals from an emitter through the conveyance, receiving a reflected signal or signals reflected from the obstruction or leak with a receiver, and analyzing the received reflected signal or signals using a processor to determine the location of the obstruction or leak in the conveyance.

A positioning system has an initiator device configured for emitting a high-speed wireless signal, at least one reference device configured for receiving the high-speed wireless signal and emitting a low-speed wireless signal after receiving the high-speed wireless signal, at least one target device each having one or more components for receiving the low-speed wireless signals, and at least one engine configured for determining the position of each of the at-least-one target device by calculating the distance between the target device and each of the at-least-one reference device based on at least the times-of-arrival of the low-speed wireless signals, each time-of-arrival being the time that the corresponding low-speed wireless signal being received by the target device, and determining the position of the target device based on the calculated distances.

The present disclosure provides a detection system that includes a first sensing device configured for sensing an acoustic wave and an electromagnetic wave and generating a first combined signal and a signal processing device configured to determine the occurrence and properties of an electrical discharge.

The present disclosure provides a detection system that includes a first sensing device configured for sensing an acoustic wave and an electromagnetic wave and generating a first combined signal and a signal processing device configured to determine the occurrence and properties of an electrical discharge.

Each of a plurality of tracking/proximity devices periodically transmits an acoustic message signal and an electronic/Bluetooth message signal and receives the same from the other devices. Each of the devices determines the proximity/separation/distance to/from/between the others by assuming that the receipt time of an electronic message signal equals its transmission time and that the receipt time of the corresponding acoustic message signal minus the receipt time of the electronic message signal equals the amount of time that the acoustic signal traveled from the transmission device to the receiving device. The receiving device converts the acoustic signal travel time into a distance by multiplying by the speed of sound. Thus, the receiving device determines the distance to the transmitting device and may alert a server, user, or wearer of the determined distance, or merely that the determined distance is less than a configurable predetermined amount.

A robotic mapping and tracking system including a robot and boundary posts are disclosed. The robot includes an ultrasonic transmitter, a processor and a camera component. The boundary posts are configured to be placed adjacent to a boundary of a working region. Each boundary post of the plurality of boundary posts includes an ultrasonic receiver. Time-of-flights of the ultrasonic waves are measured to identify distances in between the robot and boundary posts. The camera component of the robot captures an image of an environment of the robot. The processor of the robot analyzes the image of the environment and identifies at least a portion of the working region in front of the robot from the image. The processor of the robot determines a moving route based on the identified portion of the working region in front of the robot and the distances in between the robot and the boundary posts.