![]() ![]() Each of sensor nodes 121-124 could also include a processing portion for receiving the sensor information, amplifying, scaling, modifying, adjusting, digitizing, or converting the sensor information, as well as controlling the transceiver portion and sensor portions. In other examples, the transceiver portion includes a wireless transceiver and antenna for wirelessly communicating with control node 130. In some examples, the transceiver portion includes a wireline transceiver for communicating with control node 130 over a wire, optical fiber, or other medium. Each of sensor nodes 121-124 also includes a transceiver portion for communication with control node 130. ![]() ![]() Each of sensor nodes 121-124 includes a sensor portion, and the sensor portion could include thermometers, thermocouples, thermistors, thermopiles, infrared (IR) emitters/detectors, microphones, ultrasonic emitters/detectors, accelerometers, strain gauges, flow gauges, chemical sensors, micro-electromechanical system (MEMS) sensors, electrical sensors, among other sensing equipment and circuitry. Sensor nodes 121-124 each include equipment to sense and report information about undercarriage elements of a railway car. ![]()
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