Abstract: A pseudo-GNSS signal output system is proposed. The pseudo-GNSS signal output system may include a main device installed outside a tunnel and a plurality of remote devices installed inside the tunnel at a first interval and configured to communicate with the main device. Each of the plurality of remote devices may include a RADAR device, at least one pseudo-GNSS signal output device, a communication module configured to communicate with the main device, and a processor. The processor may recognize a location and velocity of a vehicle traveling in the tunnel by using the RADAR signal detected by the RADAR device, transmit the recognized location and velocity of the vehicle to the main device, receive pseudo-GNSS signal information from the main device, and generate and output a pseudo-GNSS signal through the at least one pseudo-GNSS signal output device by using the pseudo-GNSS signal information.

Abstract: A test apparatus includes an input terminal, a first multiplexer, a plurality of first elements connected in series between the input terminal and the first multiplexer, and a processor. The first multiplexer is connected to each of a plurality of nodes between the plurality of first elements, and the processor is connected to the input terminal and to the first multiplexer. The processor inputs data to the plurality of first elements through the input terminal. The plurality of first elements outputs at least a portion of a plurality of pieces of data through the plurality of nodes between the elements to the first multiplexer. The processor may thereby determine whether a defect has occurred in any of the plurality of first elements by comparing data, output from the multiplexer, with an expected output value.

Abstract: A global navigation satellite system (GNSS) signal output system is proposed. The system may include a signal generating apparatus configured to receive GNSS navigation information and generate, based on the GNSS navigation information, a pseudo GNSS signal corresponding to a current time and a current location. The system may also include a plurality of leakage cables including a plurality of signal leakage slots. The system may further include a plurality of signal output apparatuses configured to receive the pseudo GNSS signal from the signal generating apparatus and output the pseudo GNSS signal to at least one of the plurality of leakage cables. The plurality of signal output apparatuses may be arranged apart from each other.

Abstract: A test apparatus includes an input terminal, a first multiplexer, a plurality of first elements connected in series between the input terminal and the first multiplexer, and a processor. The first multiplexer is connected to each of a plurality of nodes between the plurality of first elements, and the processor is connected to the input terminal and to the first multiplexer. The processor inputs data to the plurality of first elements through the input terminal. The plurality of first elements outputs at least a portion of a plurality of pieces of data through the plurality of nodes between the elements to the first multiplexer. The processor may thereby determine whether a defect has occurred in any of the plurality of first elements by comparing data, output from the multiplexer, with an expected output value.

Abstract: An automated guided vehicle with a multistage loading structure includes a vehicle body, and a loader in the vehicle body and operative to load articles in a multistage manner. The loader has a loading unit that is positioned between the articles loaded in the multistage manner and separately loads the articles. The loading unit moves up and down.

Abstract: A global navigation satellite system (GNSS) signal output system is proposed. The system may include a signal generating apparatus configured to receive GNSS navigation information and generate, based on the GNSS navigation information, a pseudo GNSS signal corresponding to a current time and a current location. The system may also include a plurality of leakage cables including a plurality of signal leakage slots. The system may further include a plurality of signal output apparatuses configured to receive the pseudo GNSS signal from the signal generating apparatus and output the pseudo GNSS signal to at least one of the plurality of leakage cables. The plurality of signal output apparatuses may be arranged apart from each other.

Abstract: An automated guided vehicle with a multistage loading structure includes a vehicle body, and a loader in the vehicle body and operative to load articles in a multistage manner. The loader has a loading unit that is positioned between the articles loaded in the multistage manner and separately loads the articles. The loading unit moves up and down.

Abstract: An automated guided vehicle with a multistage loading structure includes a vehicle body, and a loader in the vehicle body and operative to load articles in a multistage manner. The loader has a loading unit that is positioned between the articles loaded in the multistage manner and separately loads the articles. The loading unit moves up and down.

Abstract: Provided are an electric power-assisted steering apparatus and a method of controlling the same. A lateral acceleration is calculated on the basis of an estimated rack force, and a target torque is calculated by using the calculated lateral acceleration and a target torque parameter set according to a vehicle velocity. Then, a compensation torque corresponding to a difference between the target torque and a driver torque is applied to uniformly maintain the feeling of steering even when a steering rate is changed. Also, a steering control logic based on a driver torque and a steering control logic based on a compensation torque are separated, thus facilitating steering control appropriate for steering circumstance.

Abstract: The present disclosure provides a steering wheel vibration reduction apparatus including: a vibration torque signal detector that detects a vibration torque signal according to a torque generated in accordance with vibrations of a steering wheel; a wheel frequency recognizer that detects a frequency of the vibration torque signal and, if the frequency corresponds to a wheel frequency condition set in advance and recognizes the frequency as the wheel frequency; and a vibration reduction torque signal generator that generates a vibration reduction torque signal using the wheel frequency and controls the motor such that a torque for reducing the vibrations of the steering wheel is generated by the motor and a steering wheel vibration reduction method.

Abstract: The present disclosure provides a steering wheel vibration reduction apparatus including: a vibration torque signal detector that detects a vibration torque signal according to a torque generated in accordance with vibrations of a steering wheel; a wheel frequency recognizer that detects a frequency of the vibration torque signal and, if the frequency corresponds to a wheel frequency condition set in advance and recognizes the frequency as the wheel frequency; and a vibration reduction torque signal generator that generates a vibration reduction torque signal using the wheel frequency and controls the motor such that a torque for reducing the vibrations of the steering wheel is generated by the motor and a steering wheel vibration reduction method.

Abstract: An automated guided vehicle with a multistage loading structure includes a vehicle body, and a loader in the vehicle body and operative to load articles in a multistage manner. The loader has a loading unit that is positioned between the articles loaded in the multistage manner and separately loads the articles. The loading unit moves up and down.

Abstract: Provided are an electric power-assisted steering apparatus and a method of controlling the same. A lateral acceleration is calculated on the basis of an estimated rack force, and a target torque is calculated by using the calculated lateral acceleration and a target torque parameter set according to a vehicle velocity. Then, a compensation torque corresponding to a difference between the target torque and a driver torque is applied to uniformly maintain the feeling of steering even when a steering rate is changed. Also, a steering control logic based on a driver torque and a steering control logic based on a compensation torque are separated, thus facilitating steering control appropriate for steering circumstance.

Abstract: In an emergency lighting apparatus, charging efficiency is increased by individually charging cells in a power storage unit. When a power failure or other situation occurs requiring the actual use of the emergency lighting device, the proper operation of the emergency lighting device is ensured. In particular, the disadvantage of additional wiring in a bulb-type lighting fixture and the disadvantage of grounding are addressed so that power can be continuously supplied to the emergency lighting device and the emergency lighting device functions properly.