Systems and methods for capacitor activation of concrete sensors
A system includes a sensor device for monitoring properties of a building material within which the sensor device can be embedded. The sensor device has a controller, a memory associated with the controller, one or more sensors communicatively connected to the controller for measuring one or more properties of the building material, and a power supply for powering components of the sensor device. The power supply includes a capacitor and a power regulator. The sensor device includes a power management subcircuit for activating the power regulator for powering “ON” components of the sensor device via the capacitor, wherein the power management subcircuit receives an activation signal from an external power source to activate the sensor device, and wherein the external power source is configured to charge the capacitor.
1 . A system, comprising:
a sensor device configured to monitor one or more properties of a building material within which the sensor device is embedded,
the sensor device comprising a capacitor configured to store electrical energy provided by an external power source, a power management subcircuit having an input electrically coupled to an output of the capacitor and an output electrically coupled to a power regulator,
the power management subcircuit being configured to receive an activation signal from the external power source and, in response to the activation signal, to control discharge of the capacitor to the power regulator,
the power regulator having an input electrically coupled to the output of the power management subcircuit and an output electrically coupled to a microcontroller unit, the power regulator being configured to provide regulated electrical power to the microcontroller unit,
the microcontroller unit having a power input electrically coupled to the output of the power regulator,
a first interface electrically coupled to one or more sensing components configured to measure the one or more properties of the building material,
a second interface electrically coupled to a nonvolatile memory configured to store data representing the one or more properties of the building material as measured by the sensing components, and
a third interface electrically coupled to communications circuitry configured to wirelessly transmit data representing the one or more properties to a computing device external to the building material,
wherein, in response to the activation signal, the power management subcircuit is configured to discharge the capacitor to the power regulator.
2 . The system of claim 1 , wherein the power management subcircuit comprises an activation switch that is triggered by the activation signal.
3 . The system of claim 1 , wherein the external power source is a battery pack.
4 . The system of claim 1 , wherein the controller microcontroller unit is configured to receive data regarding the one or more properties of the building material from the one or more sensing components after the sensor device is activated and embedded into the building material.
5 . The system of claim 4 , wherein the microcontroller unit is configured to wirelessly transmit the data regarding the one or more properties of the building material to the computing device external to the building material using one or more wireless or cellular communication protocols.
6 . The system of claim 1 , wherein the computing device is a smartphone, a personal computer, a tablet, a gateway, a wearable computer, or a personal digital assistant.
7 . The system of claim 1 , wherein the building material comprises concrete, asphalt, or epoxy.
8 . The system of claim 1 , wherein the one or more properties comprise building material strength, relative humidity, temperature, vibration, pH, gas and particle presence, load, and/or acoustic properties.