Telematics road ready system
First Claim
1. A system for monitoring a trailer having a plurality of light emitting diode lighting devices, said system comprising:
- a master control unit attached to an outside surface of the trailer, said master control unit including;
a solar panel;
a GPS receiver module for generating trailer location data;
a cellular data transceiver module for communicating with a central tracking computer via a cellular data network interfaced to the Internet;
a local wireless network master transceiver module in wireless communication with a plurality of wireless sensors and a light failure detection system; and
a transceiver module microcontroller for controlling said local wireless network master transceiver module to periodically obtain sensor data from said plurality of wireless sensors and said light failure detection system, and for controlling said cellular data transceiver module to transmit said location data and said sensor data;
a remote user interface for receiving and displaying said location data and said sensor data; and
wherein said light failure detection system is coupled to the plurality of light emitting diode lighting devices and includes;
a plurality of lighting circuits, each lighting circuit being coupled to a circuit board by an input wire,a plurality of voltage level monitoring circuits on said circuit board, each one of said plurality of voltage level monitoring circuits connected to one of said lighting circuits and adapted to measure the voltage of the one of said light circuits;
a plurality of current monitoring circuits on said circuit board, each one of said plurality of current monitoring circuits connected to one of said lighting circuits and adapted to measure a current draw of the one of said light circuits;
a voltage drop circuit for enabling the plurality of voltage level monitoring circuits and the plurality of current monitoring circuits to measure current and voltage at an adjusted input voltage;
a temperature sensor for sensing a temperature, a switch for placing the light failure detection system into a learn mode;
wherein said lighting circuits are monitored with the plurality of voltage level monitoring circuits and the plurality of current monitoring circuits to determine threshold voltage and current levels for the lighting circuits;
a light out detection microcontroller coupled to the circuit board for storing the threshold voltage and current levels and the temperature sensed by the temperature sensor, said light out detection microcontroller being adapted to calculate an adjusted threshold current based on a voltage sensitivity and the sensed temperature;
a fault indicator for indicating a status of the light failure detection system if a measured current is above or below the adjusted threshold current by a predetermined value; and
a transceiver coupled to the circuit board for sending information to said master control unit; and
a housing coupled to said trailer at one end thereof and a socket at a second end of said trailer for coupling to a truck tractor with a wiring harness.
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Accused Products
Abstract
A system for monitoring a trailer having a plurality of light emitting diode devices includes a master control unit attached to an outside surface of the trailer. The master control unit includes a solar panel, a GPS receiver module, a cellular data transceiver module for communicating with a central tracking computer via a cellular data network interfaced to the Internet, and a local wireless network master transceiver module in wireless communication with a plurality of wireless sensors and a light out detection system. A microcontroller is provided for controlling the local wireless network master transceiver module to periodically obtain sensor data from the wireless sensors and light out detection system, and for controlling the cellular data transceiver module to transmit the location and the sensor data to the central tracking computer for storage in the tracking database.
186 Citations
14 Claims
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1. A system for monitoring a trailer having a plurality of light emitting diode lighting devices, said system comprising:
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a master control unit attached to an outside surface of the trailer, said master control unit including; a solar panel; a GPS receiver module for generating trailer location data; a cellular data transceiver module for communicating with a central tracking computer via a cellular data network interfaced to the Internet; a local wireless network master transceiver module in wireless communication with a plurality of wireless sensors and a light failure detection system; and a transceiver module microcontroller for controlling said local wireless network master transceiver module to periodically obtain sensor data from said plurality of wireless sensors and said light failure detection system, and for controlling said cellular data transceiver module to transmit said location data and said sensor data; a remote user interface for receiving and displaying said location data and said sensor data; and wherein said light failure detection system is coupled to the plurality of light emitting diode lighting devices and includes; a plurality of lighting circuits, each lighting circuit being coupled to a circuit board by an input wire, a plurality of voltage level monitoring circuits on said circuit board, each one of said plurality of voltage level monitoring circuits connected to one of said lighting circuits and adapted to measure the voltage of the one of said light circuits; a plurality of current monitoring circuits on said circuit board, each one of said plurality of current monitoring circuits connected to one of said lighting circuits and adapted to measure a current draw of the one of said light circuits; a voltage drop circuit for enabling the plurality of voltage level monitoring circuits and the plurality of current monitoring circuits to measure current and voltage at an adjusted input voltage; a temperature sensor for sensing a temperature, a switch for placing the light failure detection system into a learn mode; wherein said lighting circuits are monitored with the plurality of voltage level monitoring circuits and the plurality of current monitoring circuits to determine threshold voltage and current levels for the lighting circuits; a light out detection microcontroller coupled to the circuit board for storing the threshold voltage and current levels and the temperature sensed by the temperature sensor, said light out detection microcontroller being adapted to calculate an adjusted threshold current based on a voltage sensitivity and the sensed temperature; a fault indicator for indicating a status of the light failure detection system if a measured current is above or below the adjusted threshold current by a predetermined value; and a transceiver coupled to the circuit board for sending information to said master control unit; and a housing coupled to said trailer at one end thereof and a socket at a second end of said trailer for coupling to a truck tractor with a wiring harness. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for monitoring a trailer having a plurality of light emitting diode devices including a light failure detection system having a plurality of lighting circuits, each lighting circuit being coupled to a circuit board by an input wire, a plurality of voltage level monitoring circuits on said circuit board for measuring measure a voltage of the one of said light circuits, a plurality of current monitoring circuits on said circuit board for to measure a current draw of the one of said light circuits, a voltage drop circuit for enabling the plurality of voltage level monitoring circuits and the plurality of current monitoring circuits to measure current and voltage at an adjusted input voltage, a temperature sensor for sensing a temperature, and a switch for placing the light failure detection system into a learn mode, wherein said lighting circuits are monitored with the plurality of voltage level monitoring circuits and the plurality of current monitoring circuits to determine threshold voltage and current levels for the lighting circuits, a light out detection microcontroller coupled to the circuit board for storing the threshold voltage and current levels and the temperature sensed by the temperature sensor, said light out detection microcontroller being adapted to calculate an adjusted threshold current based on a voltage sensitivity and the sensed temperature, and a fault indicator for indicating a status of the light failure detection system if a measured current is above or below the adjusted threshold current by a predetermined value, and a transceiver, said system for monitoring a trailer comprising:
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a master control unit attached to an outside surface of the trailer, said master control unit including; a solar panel; a GPS receiver module for generating trailer location data; a cellular data transceiver module for communicating with a central tracking computer via a cellular data network interfaced to the Internet; a local wireless network master transceiver module in wireless communication with a plurality of wireless sensors and a light failure detection system; and a transceiver module microcontroller for controlling said local wireless network master transceiver module to periodically obtain sensor data from said plurality of wireless sensors and said light failure detection system, and for controlling said cellular data transceiver module to transmit said trailer location data and said sensor data; a remote user interface for receiving and displaying said location data, sensor data and light failure detection data.
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Specification