Abstract: An apparatus for diagnosing a fault of a load cell includes a power supply unit applying power to an input terminal of a plurality of load cells connected in parallel, each of the plurality of load cells including an input terminal and an output terminal, a fault diagnosis resistor being connected to the output terminal, a voltage measurement unit measuring a voltage applied to the fault diagnosis resistor provided in the output terminal of each of the plurality of load cells, after power is applied thereto, and a controller diagnosing a fault of each of the plurality of load cells based on the measured voltage.

Abstract: An embodiment apparatus for wirelessly transmitting and receiving power for a personal mobility device having a replaceable module includes a power transmitter; a processor and a non-transitory computer-readable storage medium having recorded thereon one or more programs executable by the processor, wherein the one or more programs include instructions for implementing an identification unit configured to identify an upper module coupled to a base frame, and a power setting unit configured to set a maximum power to be wirelessly transmitted to the identified upper module, wherein the maximum power is set depending on the upper module, wherein the power transmitter is configured to wirelessly transmitt power to the identified upper module within the set maximum power.

Abstract: A handle device may include a handle upper region, a handle lower region disposed below the handle upper region, and a shaft member configured to penetrate the handle upper region and the handle lower region in a region in which the handle upper region and the handle lower region face each other. A screw thread region provided on an outer surface of the shaft member may be configured to be screw-coupled to the handle upper region and/or the handle lower region at a portion where the shaft member penetrates the handle upper region and the handle lower region. The handle upper region may include an upper concave-convex part, and the handle lower region may include a lower concave-convex part. The lower concave-convex part may have a shape corresponding to the upper concave-convex part so that the handle lower region is able to contact the handle upper region.

Abstract: A modular interchangeable mobility device comprises an electric platform comprising a base platform which comprises wheels, a motor to drive the wheels and a battery to supply power to the motor, and an upper coupling part configured to be detachably coupled with an upper module located on the base platform, and a folding-type chair attached to the base platform and configured to provide a space for the upper module when folded and serve when unfolded as a seat such that the modular interchangeable mobility device may be used as an electric scooter.

Abstract: An embodiment apparatus for wirelessly transmitting and receiving power for a personal mobility device having a replaceable module includes a power transmitter; a processor and a non-transitory computer-readable storage medium having recorded thereon one or more programs executable by the processor, wherein the one or more programs include instructions for implementing an identification unit configured to identify an upper module coupled to a base frame, and a power setting unit configured to set a maximum power to be wirelessly transmitted to the identified upper module, wherein the maximum power is set depending on the upper module, wherein the power transmitter is configured to wirelessly transmitt power to the identified upper module within the set maximum power.

Abstract: A modular interchangeable mobility device comprises an electric platform comprising a base platform which comprises wheels, a motor to drive the wheels and a battery to supply power to the motor, and an upper coupling part configured to be detachably coupled with an upper module located on the base platform, and a folding-type chair attached to the base platform and configured to provide a space for the upper module when folded and serve when unfolded as a seat such that the modular interchangeable mobility device may be used as an electric scooter.

Abstract: A handle device may include a handle upper region, a handle lower region disposed below the handle upper region, and a shaft member configured to penetrate the handle upper region and the handle lower region in a region in which the handle upper region and the handle lower region face each other. A screw thread region provided on an outer surface of the shaft member may be configured to be screw-coupled to the handle upper region and/or the handle lower region at a portion where the shaft member penetrates the handle upper region and the handle lower region. The handle upper region may include an upper concave-convex part, and the handle lower region may include a lower concave-convex part. The lower concave-convex part may have a shape corresponding to the upper concave-convex part so that the handle lower region is able to contact the handle upper region.

Abstract: An apparatus for diagnosing a fault of a load cell includes a power supply unit applying power to an input terminal of a plurality of load cells connected in parallel, each of the plurality of load cells including an input terminal and an output terminal, a fault diagnosis resistor being connected to the output terminal, a voltage measurement unit measuring a voltage applied to the fault diagnosis resistor provided in the output terminal of each of the plurality of load cells, after power is applied thereto, and a controller diagnosing a fault of each of the plurality of load cells based on the measured voltage.

Abstract: A system for determining a state of a power relay assembly includes: a power relay assembly for determining electrical connection states of first and second input-output ports; a relay controller outputting a control signal; a battery management system for determining a connection state of the relay and directing a connection state adjustment of the relay; and a voltage sensor for sensing a voltage of the first input-output port and outputting a state signal. By determining the state of the power relay assembly, it is possible to take quick action against trouble by subdividing and distinguishing a type of abnormality of the power relay assembly, and to prevent a larger problem from occurring by diagnosing relay abnormality in advance and quickly taking a fail safe operation.

Abstract: A system for determining a state of a power relay assembly includes: a power relay assembly for determining electrical connection states of first and second input-output ports; a relay controller outputting a control signal; a battery management system for determining a connection state of the relay and directing a connection state adjustment of the relay; and a voltage sensor for sensing a voltage of the first input-output port and outputting a state signal. By determining the state of the power relay assembly, it is possible to take quick action against trouble by subdividing and distinguishing a type of abnormality of the power relay assembly, and to prevent a larger problem from occurring by diagnosing relay abnormality in advance and quickly taking a fail safe operation.