Identification of Vacant and Emerging Technologies in Smart Mobility Through the GTM-Based Patent Map Development

Abstract

With the development of the online platforms and the Internet of Things (IoT), various transportation services have been provided, and the lifestyle of the general public has changed significantly. However, the speed of development of technologies and services for the mobility handicapped has been relatively slow. Accordingly, in this paper, the smart mobility patent data for the mobility handicapped is subdivided through clustering to derive the mobility handicapped-related vacant technologies, and the prospect of the vacant technology is verified. For each cluster, a technology level map is generated in consideration of the technology growth level and the scope of authority of the vacant technology derived through the generative topographic map (GTM) patent map, and the level of the vacant technology is checked in terms of quantity and quality. Both indicators perform time series analyses on superior technology to predict technology trends and determine the technology’s promisingness. Unlike the precedent studies that focused only on quantitative analysis methods, this paper identified the usefulness of the technology through clustering and various verification processes and materialized it as a vacant technology that is applicable to actual R&D. Accordingly, through this empirical paper, it is possible to understand the current level of vacant technology in smart mobility for the mobility handicapped and establish an R&D strategy to prevent monopoly in technology in the future market and maintain competitiveness. It can also be utilized for new technology development in consideration of convergence with currently developed technology.

IoT-Based Route Guidance Technology for the Visually Impaired in Indoor Area

“…In Japan, patents increased sharply in the early 2000s, since then increased and decreased repetitively, but, overall, it showed an increasing trend, but it has been decreasing since 2018. In Europe, the number of patents started to increase from 2011, and in 2015, 34 applications were filed, the most among major market countries, and it has been declining since 2016 [8,27,28].…”

“…Various technologies that can use location information in this indoor area are being developed, but most of them require the construction of many infrastructure facilities, and at the same time, users must have a dedicated terminal or additional device to use these services, etc. [6][7][8][9]. Therefore, it is difficult to put it into practical use.…”

“…Recently, the use of smartphones has become common among visually impaired people in external activities in Korea. Accordingly, in this chapter, a technology for supporting mobility in indoor spaces of the visually impaired people based on smartphones that do not require large-scale facilities was presented, and its applicability was verified [7,8,13]. That is, Internet of things (IoT) sensor-based route guidance technology that can improve the satisfaction of the visually impaired in indoor space through smartphone-based technology and user satisfaction evaluation results was represented.…”

Promising Technology Analysis and Patent Roadmap Development in the Hydrogen Supply Chain

“…In this case, the data were grouped while locating the data in the low-dimensional space in the multi-dimensional space and find the space where the data do not exist [62]. Patent data are available, and patent analysis studies have been conducted and the state of the art has been analyzed [63]. Technology analysis through a comparison between SOM and GTM through the GTM-based patent map was conducted [64].…”

Identification of Promising Smart Farm Technologies and Development of Technology Roadmap Using Patent Map Analysis

“…The one quadrant is defined at the high level where both the TAI and TII indicators are high, and the two and three quadrants are defined at the medium level where either the TAI or TII index is high. Finally, the four quadrants are defined at the low level where all indicators are low [7,13,14,32].…”