US 12,000,747 B2 · Wearable multi-directional blast sensor

Abstract

A wearable blast sensor for simultaneously measuring blast pressure from multiple directions includes multiple pressure sensing transducers oriented in individual planes for simultaneously measuring blast pressure of a blast from multiple directions, at least one blast parameter sensing transducer to measure a blast parameter, a memory for storing blast pressure data and measured blast parameter data, a controller coupled to and responsive to the multiple pressure sensing transducers and to the blast parameter sensing transducer to capture and store measured blast pressure data and measured blast parameter data, at least one indicator to indicate blast exposure severity as a function of amplitude of measured blast pressure data and measured acceleration amplitude, the multi-directional pressure sensor device, the blast parameter sensing transducer, the memory, the controller, and the indicator light and/or display sealed within in a housing, and at least one attachment device coupled to the housing for mounting.

Claims26

Dependent claims

A wearable blast sensor for simultaneously measuring blast pressure of a blast event from multiple directions, comprising:

multiple pressure sensors oriented in individual planes in one multi-directional pressure sensor device for simultaneously measuring blast pressure of the blast event from multiple directions;
at least one blast parameter sensor to measure a blast parameter other than pressure from the blast event;
an analog-to-digital converter having an analog input and a digital output, the analog input coupled to the multiple pressure sensors;
a rolling memory buffer coupled to the digital output of the analog-to-digital converter;
at least one controller coupled to the rolling memory and configured to:
store a time sequence of digital pressure signals from the digital output of the analog-to-digital converter;
write into a blast event memory data from the rolling memory buffer including data corresponding to the blast event if one of the digital pressure signals exceeds a set first threshold;
generate a first blast magnitude indicator signal if any of the digital pressure signals exceeds a second set threshold.

5 more elements

A method for operating a wearable blast sensor having multiple pressure sensors oriented in individual planes in one multi-directional pressure sensor device for simultaneously measuring blast pressure of a blast event from multiple directions, comprising:

affixing the blast sensor to an object;
continually sensing pressure data from multiple pressure sensors oriented in individual planes in one multi-directional pressure sensor device;
continuously storing the sensed pressure data in a rolling memory buffer in the wearable blast sensor;
comparing in the wearable blast sensor the sensed data from each of the multiple pressure sensors with a preset threshold;
identifying in the wearable blast sensor sensed data that exceeds the preset threshold as blast event data;
in response to identifying blast event data, writing a data set from the rolling memory into a blast event memory in the wearable blast sensor, the data set including sensed data stored sequentially from a time prior to the blast event data to sensed data stored from a time after the blast event data.

3 more elements

Dependencies are inferred from the claim text.

Wearable multi-directional blast sensor

Life of this patent

Wearable multi-directional blast sensor

Life of this patent

Abstract

Claims26