Author: Fang Yingjie
Introduction: In the human-computer interaction environment system, with the increasing complexity of interactive objects and interactive scenes, the traditional visual and auditory-based information transmission methods have been difficult to meet people's needs for timeliness of information transmission in engineering emergency scenarios. Tactile has unique advantages in perceiving information, which can make up for the lack of visual and auditory perception channels, and its importance in information transmission has become increasingly prominent.
However, the research and application of haptics in engineering early warning scenarios is still at a relatively early stage. Therefore, the research goal of this paper is to carry out the research on the cognitive process of tactile perception based on the prototype of head-mounted tactile warning, and to explore the reasonable form of head-mounted vibration equipment, so as to provide guidance for the industrial design of head-mounted vibration equipment under the construction engineering scene.
Firstly, this paper introduces the concept of touch and the perception of human body to touch, summarizes the existing vibration touch realization technology, and expounds the research status and achievements of vibration touch equipment for information transmission. Based on the research methods of tactile perception and cognitive process in cognitive psychology, the research framework of tactile perception research and tactile warning device design in engineering scenarios is proposed. Subsequently, experiments were set around the perceptual properties of vibration tactile: spatial distribution position, time and vibration parameters. In order to study the characteristics of vibration tactile, a head-mounted vibration tactile prototype was independently developed, and experiments were carried out based on the prototype.
In Experiment 1, tactile perceptual measurements were performed on the head to compare the sensitivity of different positions to determine the appropriate parts of the head where vibration acts. In experiment 2, seven vibration modes were formed by combining different time modes and strengths, and tactile modes suitable for conveying alarm information were obtained through comparison. The experimental results show that the frontal hairless area and the central temporal area are the most sensitive; the vibration mode with short time interval and high intensity is more suitable for conveying alarm information. The conclusion of the tactile perception experiment provides a basis for the arrangement of vibration components and the parameter setting of vibration alarm mode, and this paper also carries out the investigation of the early warning scene of construction engineering, and designs an engineering early warning helmet applied to the construction site scene in combination with the experimental conclusion and the demand of emergency early warning in the construction scene.
The intelligent tactile warning helmet is aimed at the two most typical emergency warning scenarios in construction site operations: personnel entering dangerous areas and improperly wearing safety helmets, interactive design of functional systems based on the existing BIM building information positioning and warning system, and finally The designed digital model is made into a prototype for user evaluation and testing in actual scenarios.

Original link: https://pinwall.cn/project/37695