Abstract:
Dynamic baselining of current modulation-based talkback from a slave device to a master device in a system such as an electronic blasting system, wherein the dynamic baselining enhances communication integrity under conditions of environmental noise and the like. With a data packet of appreciable length, the dynamic baselining is preferably performed repeatedly on the bytes or words within the packet.
Abstract:
Dynamic baselining of current modulation-based talkback from a slave device to a master device in a system such as an electronic blasting system, wherein the dynamic baselining enhances communication integrity under conditions of environmental noise and the like. With a data packet of appreciable length, the dynamic baselining is preferably performed repeatedly on the bytes or words within the packet.
Abstract:
Firing-readiness diagnostics in an electronic pyrotechnic device such as an electronic detonator or an electronic blasting system thereof. The diagnostics may include a check for any incompatible attached devices, a resistance or continuity check of an ignition element, and/or a capacitance check of a firing capacitor.
Abstract:
A safety sensing and/or release system for a closed compartment of a vehicle is operable to detect an occupant within the vehicle compartment. The system may be operable to sense ambient conditions in the vehicle compartment, and may generate a control signal in response to the sensed conditions. The system may actuate indicators to notify operators of the vehicle that there is a person or animal detected in the compartment. Optionally, the system may open the vehicle compartment in response to a detection of an occupant and the sensed conditions. The safety system includes a false trigger protection means that limits or reduces false detections of a person or animal within the compartment.
Abstract:
Dynamic baselining of current modulation-based talkback from a slave device to a master device in a system such as an electronic blasting system, wherein the dynamic baselining enhances communication integrity under conditions of environmental noise and the like. With a data packet of appreciable length, the dynamic baselining is preferably performed repeatedly on the bytes or words within the packet.
Abstract:
For use in a system having a master device and slave devices (e.g., an electronic blasting system) and utilizing an automatic detection process that causes any slave devices that have not previously been identified to the master device to identify themselves to the master device, an enhancement to the detection process employs at least a second discriminator to detect superimposed responses from simultaneously responding slave devices, and a “deconvolution” algorithm in order to ascertain their identities.
Abstract:
A method of dynamically- and continuously-variable rate asynchronous data transfer, such as for use in an electronic blasting system, may employ a device that transmits data including synchronization bits and bits conveying other information, and a device that ascertains the rate of transmission of the synchronization bits and receives the bits conveying the other information at the ascertained rate of transmission.
Abstract:
A safety sensing system for a compartment of a vehicle is operable to detect an occupant within the vehicle compartment. The system may be operable to sense ambient conditions in the vehicle compartment, and may generate a control signal in response to the sensed conditions. The system may actuate indicators to notify operators of the vehicle that there is a person or animal detected in the compartment. Optionally the system may open the vehicle compartment in response to a detection of an occupant and the sensed conditions. The safety system includes a false trigger protection means that limits or reduces false detections of a person or animal within the compartment.
Abstract:
A system for sensing ambient conditions in a compartment, such as the trunk of an automobile, generates a control signal in response to the sensed conditions. This control signal actuates indicators to notify operators of the vehicle that there is a person trapped in the trunk. The control signal is also used to actuate a lamp inside the trunk to provide light for the trapped person. A trunk release is also actuated, by a control module, to free the trapped person. The trunk release of the automobile can be prevented from being actuated if the automobile is moving, which prevents the trunk lid from unexpectedly opening while the vehicle is in motion.
Abstract:
Pyroelectric detector systems may be used in vehicles for security applications, such as intrusion detection and anti-theft alarms. The pyroelectric detectors are small in size, highly reliable and consume very low power. They can be physically and electrically integrated with other vehicle components, including rear-view mirror assemblies in automobiles, without incurring additional installation costs. They can also be easily integrated into aircraft cockpits.