A monitoring method is adapted for a circuit board. The circuit board includes a board body, a main circuit, and a standby circuit. The main circuit is located on the board body. The standby circuit is located on the board body, and is electrically connected to the main circuit. The standby circuit includes a first pressure detection circuit and a control circuit. The first pressure detection circuit is located at an area being monitored of the board body, and the control circuit outputs a first signal or a second signal according to a first detection value and a first predetermined range of the first pressure detection circuit.

According to one embodiment, a sensor device comprises a substrate, and a sensor layer superposed on the substrate, the substrate includes a plurality of individual areas arranged in a matrix in a first direction and a second direction that intersect each other, a plurality of individual electrodes arranged in the plurality of individual areas, and a common electrode facing the plurality of individual electrodes and generating a plurality of electric fields between the plurality of individual electrodes, wherein the plurality of electric fields are in different directions in a planar view, and the plurality of electric fields in different directions are applied to the sensor layer.

A sensor cell is provided for measuring force, comprising: a conductive elastic substrate (13); and a variable resistor comprising: a first electrode (11a); a second electrode (12); and a portion (130) of the conductive elastic substrate (13) arranged between the electrodes (11a, 12) such that a force acting on the substrate (13) causes a change in distance between the electrodes (11a, 12) thereby changing a resistance of the variable resistor.

Systems, devices, and methods for a two wire detection circuit powered system comprising: an electronic switch circuit configured to sense a pressure level above or below a predetermined value and indicate an open or closed switch condition, where the electronic switch circuit provides a contact resistance voltage of about 20 mV in the closed switch condition; and an energy harvester configured to convert 20 mV when the electronic switch circuit is in the closed switch condition to an operating voltage between 3.6 Volts and 5 Volts for the electronic switch circuit to operate without an additional power source.

Systems, devices, and methods for a two wire detection circuit powered system comprising: an electronic switch circuit configured to sense a pressure level above or below a predetermined value and indicate an open or closed switch condition, where the electronic switch circuit provides a contact resistance voltage of about 20 mV in the closed switch condition; and an energy harvester configured to convert 20 mV when the electronic switch circuit is in the closed switch condition to an operating voltage between 3.6 Volts and 5 Volts for the electronic switch circuit to operate without an additional power source.

A system for capturing and processing information from passers-by walking over a device equipped with stratified mechanical compression sensing, such as a mat or doormat, which is made up of a metal structure supporting a set of bars made of conductive polymer superimposed on the metal structure; such system is capable of managing a plurality of devices together.

A system for capturing and processing information from passers-by walking over a device equipped with stratified mechanical compression sensing, such as a mat or doormat, which is made up of a metal structure supporting a set of bars made of conductive polymer superimposed on the metal structure; such system is capable of managing a plurality of devices together.

An innovative and unique method to create a resistance-based textile impact sensor has been demonstrated. The sensor is comprised of very low-cost materials and can detect impact and pressure. The sensor is highly conformable and constructed in such a way that make it tailorable for applications on varying geometries, detection sensitivity and ruggedness requirements. The impact sensor system includes a non-conductive carrier material. A pair of conductive wire traces are attached to the carrier material. A plurality of threads are provided to attach the conductive traces to the carrier material. A non-conductive covering material is positioned over the conductive traces opposite the carrier material. A conductive sheet is disposed over the covering material. The covering material is applied to the conductive traces to at least partially cover the surface of the at least two conductive traces facing the conductive sheet.

An innovative and unique method to create a resistance-based textile impact sensor has been demonstrated. The sensor is comprised of very low-cost materials and can detect impact and pressure. The sensor is highly conformable and constructed in such a way that make it tailorable for applications on varying geometries, detection sensitivity and ruggedness requirements. The impact sensor system includes a non-conductive carrier material. A pair of conductive wire traces are attached to the carrier material. A plurality of threads are provided to attach the conductive traces to the carrier material. A non-conductive covering material is positioned over the conductive traces opposite the carrier material. A conductive sheet is disposed over the covering material. The covering material is applied to the conductive traces to at least partially cover the surface of the at least two conductive traces facing the conductive sheet.