Abstract: The present invention is a smart golf cart system, which relates to a smart golf cart system comprising: a golf cart including a driving module and a wireless communication module, which are configured to move according to a preset signal, and configured to load a user's golf equipment; an RTK GNSS module providing GNSS information including location information of the golf cart through communication with the wireless communication module; a GIS module including a library part in which map information of a golf course is stored in advance, wherein the map information is in the form of GIS information including altitude information; and a path calculation module for calculating the path of the golf cart, wherein the path calculation module receives GNSS information of the golf cart through the RTK GNSS module to calculate an initial path, generates an avoidance path based on the GIS information of the initial path provided from the GIS module to form a reference path, and controls the driving module depending
Type:
Application
Filed:
June 21, 2022
Publication date:
April 18, 2024
Applicant:
Sj Tech Co., Ltd
Inventors:
Hwan Cheol HWANG, Jae Hyeon JO, Yeohosua KIM
Abstract: Disclosed are an aluminum alloy for a die casting and a method of producing an aluminum alloy casting product. The aluminum alloy may include silicon (Si) in an amount of about 7.5 to 9.5 wt %; magnesium (Mg) in an amount of about 2.5 to 3.5 wt %; iron (Fe) in an amount of about 0.5 to 1.0 wt %; manganese (Mn) in an amount of about 0.1 to 0.6 wt %; and aluminum (Al) constituting the remaining balance of the aluminum alloy, all the wt % are based on the total weight of the aluminum alloy.
Type:
Grant
Filed:
October 28, 2018
Date of Patent:
November 7, 2023
Assignees:
Hyundai Motor Company, Kia Motors Corporation, SJ Tech Co., Ltd.
Abstract: Disclosed are a magnesium die casting alloy, and an alloy composition for improving thermal conductivity and electrical conductivity. A magnesium die casting alloy includes an amount of about 0.5 to 2.0 wt % of aluminum (Al) and the balance magnesium (Mg), based on the total weight of the magnesium die casting alloy. Accordingly, an alloy, which has high thermal conductivity and electrical conductivity as compared to a conventional AZ91D magnesium alloy, is obtained.
Type:
Grant
Filed:
October 23, 2019
Date of Patent:
April 5, 2022
Assignees:
Hyundai Motor Company, Kia Motors Corporation, SJ Tech Co., Ltd.
Inventors:
Byong-Soo Kim, Jung-Mok Lee, Dong-Keun Lee, Il Huh