Evidence map›Paper›PMID 38339588›Full record

ArticleSensors (Basel, Switzerland)2024

A Smart Cane Based on 2D LiDAR and RGB-D Camera Sensor-Realizing Navigation and Obstacle Recognition.

Chunming Mai, Huaze Chen, Lina Zeng, Zaijin Li, Guojun Liu, Zhongliang Qiao, Yi Qu, Lianhe Li, Lin Li

Abstract read
In one paragraph

Article in Sensors (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Chunming MaiCollege of Physics and Eletronic Engineering, Hainan Normal University, Haikou 571158, China.ORCID 0000-0002-0180-7186
Huaze ChenCollege of Information Science and Technology, Hainan Normal University, Haikou 571158, China.
Lina ZengCollege of Physics and Eletronic Engineering, Hainan Normal University, Haikou 571158, China.
Zaijin LiCollege of Physics and Eletronic Engineering, Hainan Normal University, Haikou 571158, China.
Guojun LiuCollege of Physics and Eletronic Engineering, Hainan Normal University, Haikou 571158, China.
Zhongliang QiaoCollege of Physics and Eletronic Engineering, Hainan Normal University, Haikou 571158, China.ORCID 0000-0002-3923-4029
Yi QuCollege of Physics and Eletronic Engineering, Hainan Normal University, Haikou 571158, China.
Lianhe LiHainan International Joint Research Center for Semiconductor Lasers, Hainan Normal University, Haikou 571158, China.
Lin LiCollege of Physics and Eletronic Engineering, Hainan Normal University, Haikou 571158, China.ORCID 0000-0003-4102-153X

Funding

Finance science and technology project of Hainan province ZDYF2020217Hainan Provincial Natural Science Foundation of China 123MS035National Natural Science Foundation of China 62064004National Natural Science Foundation of China 62174046National Natural Science Foundation of China 62274048specific research fund of The Innovation Platform for Academicians of Hainan Province YSPTZX202127
6 · The paper itself

Abstract

In this paper, an intelligent blind guide system based on 2D LiDAR and RGB-D camera sensing is proposed, and the system is mounted on a smart cane. The intelligent guide system relies on 2D LiDAR, an RGB-D camera, IMU, GPS, Jetson nano B01, STM32, and other hardware. The main advantage of the intelligent guide system proposed by us is that the distance between the smart cane and obstacles can be measured by 2D LiDAR based on the cartographer algorithm, thus achieving simultaneous localization and mapping (SLAM). At the same time, through the improved YOLOv5 algorithm, pedestrians, vehicles, pedestrian crosswalks, traffic lights, warning posts, stone piers, tactile paving, and other objects in front of the visually impaired can be quickly and effectively identified. Laser SLAM and improved YOLOv5 obstacle identification tests were carried out inside a teaching building on the campus of Hainan Normal University and on a pedestrian crossing on Longkun South Road in Haikou City, Hainan Province. The results show that the intelligent guide system developed by us can drive the omnidirectional wheels at the bottom of the smart cane and provide the smart cane with a self-leading blind guide function, like a "guide dog", which can effectively guide the visually impaired to avoid obstacles and reach their predetermined destination, and can quickly and effectively identify the obstacles on the way out. The mapping and positioning accuracy of the system's laser SLAM is 1 m ± 7 cm, and the laser SLAM speed of this system is 25~31 FPS, which can realize the short-distance obstacle avoidance and navigation function both in indoor and outdoor environments. The improved YOLOv5 helps to identify 86 types of objects. The recognition rates for pedestrian crosswalks and for vehicles are 84.6% and 71.8%, respectively; the overall recognition rate for 86 types of objects is 61.2%, and the obstacle recognition rate of the intelligent guide system is 25-26 FPS.

Indexed as

2D LiDARcartographerimproved YOLOv5Jetson nano (B01)laser SLAMRGB-D camerasmart canetarget recognition

Identifiers

PMID38339588
PMCPMC10856969

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.