Detecting Human Attendance using 1-Dimensional Foot Signal from Laser Range Sensor

2021 ◽  
Author(s):  
Muhammad Dafa Geraldine Putra Malik ◽  
Dadet Pramadihanto ◽  
Bima Sena Bayu Dewantara
Keyword(s):  
Laser Range ◽  
Range Sensor

Research of Multi-Sensor Data Fusion Based on Binocular Vision Sensor and Laser Range Sensor

2016 ◽  
Vol 693 ◽  
pp. 1397-1404 ◽  
Author(s):  
Qi Long Wang ◽  
Jian Yong Li ◽  
Hai Kuo Shen ◽  
Teng Teng Song ◽  
Yan Xuan Ma
Keyword(s):  
Binocular Vision ◽  
Measurement Accuracy ◽  
Optical Axis ◽  
Vertical Direction ◽  
Utilization Efficiency ◽  
Sensor Data ◽  
Vision Sensor ◽  
Laser Range ◽  
Range Sensor ◽  
Sensor Information

The system of binocular vision sensor was used in the air-to-air close air target positioning in the paper. Due to the limitation of model itself, the measurement accuracy along the direction of optical axis is far lower than the accuracy of vertical direction. In order to improve the measurement accuracy of the optical axis, the paper put forward to using laser range sensor to cooperate with binocular vision sensor; Then the paper proposed adopts adaptive weighted fusion algorithm of multi-sensor information fusion to improve the utilization efficiency of multi-sensor information and to make the results accurately; Finally, the parameters of the system were calibration respectively and experiment is simulated, experimental results show that the position system is feasibility and effectiveness.

Development of a Laser Range Sensor for a Mobile Robot

1991 ◽  
Vol 3 (5) ◽  
pp. 373-378 ◽  
Author(s):  
Kiyoshi Komoriya ◽  
◽  
Kazuo Tani
Keyword(s):  
Mobile Robot ◽  
Autonomous Navigation ◽  
Ccd Camera ◽  
Sensor System ◽  
Beam Spot ◽  
Laser Range ◽  
Range Sensor ◽  
Good Spatial Resolution ◽  
Indoor Mobile Robot ◽  
Robot Position

External sensors which can detect environmental information are important for a mobile robot to recognize its surroundings and location. Among external sensors, range sensors are fundamental because they can directly detect the free space in which the mobile robot can move without colliding with the surrounding objects. A laser range sensor provides good spatial resolution, and it is expected to detect characteristic parts of the environment used as landmarks for recognizing robot position. This paper presents the construction of a laser range sensor system which can be implemented in a small mobile robot. The system consists of several components including laser diode, CCD camera, and mark detection hardware. Based on triangulation method, the system can detect the distance to the object's surface on which the beam spot is directed. In order to detect a landmark, such as a wall edge, the sensor system is mounted on a rotary table. By horizontally scanning, the sensor can detect wall edges with an accuracy of approximately 5mm and an orientation accuracy of approximately 1 degree within 3m. This system has been installed in an indoor mobile robot and is used for autonomous navigation control along corridors.

Design and Realization of 2-Dimensional Optical Range Sensor for Environment Recognition in Mobile Robots

2005 ◽  
Vol 17 (2) ◽  
pp. 116-120 ◽  
Author(s):  
Hirohiko Kawata ◽  
◽  
Toshihiro Mori ◽  
Shin’ichi Yuta ◽  
Keyword(s):  
High Resolution ◽  
Mobile Robot ◽  
Mobile Robots ◽  
Amplitude Modulation ◽  
Low Power Consumption ◽  
Optical Range ◽  
Laser Range ◽  
Range Sensor ◽  
Environment Recognition ◽  
Robot Platform

We developed a 2-D laser range sensor suitable for different mobile robot platform sizes. The sensor features compactness, lightweight, high precision and low power consumption and has wide scan angle with high resolution essential for environment recognition in mobile robots. The principle applied to calculate the distance between the sensor and the object involves, applying amplitude modulation to the wave of light and detecting the phase difference between transmitted and received light. In this paper we explain the sensor specifications, the principle of distance measurement and experimental results.

Development of Ultra-Wide-Angle Laser Range Sensor and Navigation of a Mobile Robot in a Corridor Environment

1999 ◽  
Vol 11 (1) ◽  
pp. 25-32 ◽  
Author(s):  
Yoshinobu Ando ◽  
◽  
Takashi Tsubouchi ◽  
Shin’ichi Yuta
Keyword(s):  
Mobile Robot ◽  
Range Data ◽  
Wide Angle ◽  
Ccd Cameras ◽  
Angle Sensor ◽  
Laser Range ◽  
Range Sensor ◽  
Plane Parallel ◽  
Navigation Scheme

The present authors developed a laser range sensor with an ultra-wide view angle and a navigation scheme for a mobile robot to move along a corridor. Although the range sensor uses orthodox triangulation in measurement, the detectable angle is extended to 260 degrees. This ultra-wide-angle sensor consists of 5 laser fan beam projectors and 3 CCD cameras. All fan beams from laser projectors are aligned in one plane parallel to the floor, and beam reflections on objects are detected by CCD cameras with super-wide-angle lenses. This paper presents schemes for obtaining range data with the sensor and for following along a corridor and some results on long corridor navigation.

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