WIRELESS OIL TANK LEVEL REPORTING DEVICE, SYSTEM AND METHOD

摘要

A remote level sensor for a residential fuel oil tank is adapted for a fuel oil gauge with a permanent magnet which changes position with changing fluid levels in the tank. The sensor and gauge cylinder are integral so as to align with a magnet on the indicator of the gauge. The sensor is connected a remote monitoring website on the internet by means of a radio connection to a local area network. The sensor has multiple magnetic sensors each in a different relative position. The sensors detect the position of the magnet when the magnet is within a certain distance. Several sensors may detect the magnet and each sensor's output will be proportional to the magnet's distance from it. Two or three sensor outputs are sufficient to interpolate the absolute position of the magnet and thus the fuel oil level in the tank. The controller has a scanning routine that samples the sensor outputs periodically and formats the data into an HTTP POST or PUT message. The controller then send this data and a UUID identifier and MAC address to a remote website.

主权项

1. A remote level sensor system for a fuel oil tank including
a gauge with a permanent magnet that changes position based on a fuel oil level in the fuel oil tank comprising:
a housing separate from the gauge and attached thereto;a plurality of magnetic sensors mounted on the gauge, each magnetic sensor of the plurality of magnetic sensors positioned at predetermined position on the gauge relative to the other magnetic sensors of the plurality of sensors and configured to provide information indicating magnetic field at the respective location thereof;a controller connected to each magnetic sensor of the plurality of magnetic sensors and configured to receive information regarding the magnetic field from each of the plurality of magnetic sensors and to generate a unique identifier for each one of the plurality of magnetic sensors;a transmitter connected to the controller and configured to send the information regarding the magnetic field from each of the plurality of magnetic sensors with the unique identifier for the respective magnetic sensor; anda processor that receives the data from the transmitter and determines a position of the permanent magnet on the gauge and provides an indication of the remaining fuel oil in the tank based thereon.