A long-range low-power wireless sensor network based on U-LoRa technology for tactical troops tracking systems

San-Um, Wimol; Lekbunyasin, Pansathorn; Kodyoo, Mongkol; Wongsuwan, Wipawadee; Makfak, Jakkaphong; Kerdsri, Jiradett

doi:10.1109/acdt.2017.7886152

Cited by 23 publications

(14 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Different work effort put such as generic sensor framework [133] for IoT, analysis of LoRa for smart metering [134,135], undermine and soils [136][137][138][139], propagation analysis of indoor (Smart Buildings) [140] and campuses [141], industrial use cases [142,143], aerospace [144] and satellite communications [145], verticular smart city applications [146], remote on/off switches [147], multi hop monitoring system [148] and enegery efficient monitoring systems [149], military use cases for troop tracking [150] and public use case for tracking kids [151].…”

Section: Lorawan Applicationsmentioning

confidence: 99%

A Survey on LoRaWAN Architecture, Protocol and Technologies

et al. 2019

View full text Add to dashboard Cite

Internet of Things (IoT) expansion led the market to find alternative communication technologies since existing protocols are insufficient in terms of coverage, energy consumption to fit IoT needs. Low Power Wide Area Networks (LPWAN) emerged as an alternative cost-effective communication technology for the IoT market. LoRaWAN is an open LPWAN standard developed by LoRa Alliance and has key features i.e., low energy consumption, long-range communication, builtin security, GPS-free positioning. In this paper, we will introduce LoRaWAN technology, the state of art studies in the literature and provide open opportunities. Several LPWANs emerged on both licensed and unlicensed bands, LoRaWAN, Sigfox and, NB-IoT are widely deployed vital technologies [3].Sigfox is an ultra-narrow band network that is patented and operated by Sigfox. Sigfox occupies 100 Hz and operates at 433MHz, 868MHz and 915MHz frequencies depending on the geographical regions. Technology has strict constraints on the number of packets (140 per day) and the packet size (12 bytes) to be sent. Also, LoRaWAN has similar policies to prevent network congestion allowing channels to be available only %1 duty-cycle for EU 868MHz (See Section 2.4.7). NB-IoT is an ultra-narrow band technology developed by the 3GPP group which can be adopted on GSM and LTE networks. It occupies 200 MHz bandwidth and can reach up to 200 kbps data transmission speed. Compared to LoRaWAN, Sigfox and NB-IoT operated by global network operators which limit deployments of the private networks [4].An overview comparison of the three networks is shown in Table 1. When LPWAN characteristics are considered LoRaWAN becomes a strong candidate for both scientific and industrial uses cases.LoRa referrer to Long Range and a physical layer technology patented by Semtech [5].LoRaWAN is an open protocol proposed by the LoRa Alliance which enables the MAC layer for the network [6].In this study, we will introduce the technological aspects of LoRaWAN and the state of art studies fulfilled about LoRaWAN till today. LoRaWAN protocol was first released in 2015 and had a few minor revisions, the differences in the protocol has been highlighted in the relevant subsection. In the survey, we will introduce LoRaWAN in depth both technological aspects and the use cases of its different areas. We categorized literature studies as in Figure 1. Studies are classified as two main sections; network technology and the applications, each section has own sub-branches. The majority of the work is focused on the coverage tests and applicability of the technology for different fields from large scale smart city applications to personal tracking assets. However, there are still gaps in the literature where researchers can address these problems such as post-disaster communication, decentralized networks, network management, and Adaptive Data Rate.

show abstract

Section: Lorawan Applicationsmentioning

confidence: 99%

A Survey on LoRaWAN Architecture, Protocol and Technologies

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The data transmission rate of LoRa is between 20 and 100 kbps, and the communication distance can reach 5 km. (17) There is no redundant land in the vast ocean where relay stations can be set up to relay data. Therefore, in this project, we used spread-spectrum technology to enable LoRa to achieve its long-distance, noise-resistant characteristics for transmission.…”

Section: Communication Unit: the Communication Unit Includes Lora Commentioning

confidence: 99%

“…In this study, (17,19) channels are cut into one channel per MHz in the 410-441 MHz radio frequency band, so there are 32 channels available, as shown in Fig. 7.…”

Section: Modular Lora Apmentioning

confidence: 99%

Real-time Alarm, Dynamic GPS Tracking, and Monitoring System for Man Overboard

Sheu¹,

Yang²,

Yang³

et al. 2020

Sensors and Materials

View full text Add to dashboard Cite

Ships are the most important means of transportation for maintaining the marine economy in most countries. Coastal patrol is an important task of the state to prevent smuggling and other dangerous coastal activities. However, unfortunate accidents involving people on board ships and coast guards drowning in the sea occur from time to time. To save the lives of those who have fallen into the sea, most international searches are carried out by satellite searches, helicopter rescue, and the dispatch of boats. They are not only time-consuming but also inefficient. For this reason, we propose in this paper a real-time alarm, dynamic global positioning system (GPS) tracking, and monitoring system for man overboard (MOB). The system consists of four parts: wearable sensing aids, modular long-range access points (LoRa APs), physical electric fences, and a central control system, as well as three methods of detecting and protecting against MOB. These methods include real-time notification of MOB with wearable sensing aids, virtual electric fence monitoring based on the size of the ship, and instant notification triggered by a physical electric fence around the ship. As shown in a laboratory test and an actual sea test, the three MOB sensing methods developed in this research can perform instant detection and notification actions. We have thus demonstrated a method for the real-time detection of MOB by a shipwrecked ship itself that also promptly proposes a rescue action.

show abstract

“…A prototype was built and tested using Arduino Uno as transmitter and NEO-6M as GPS module. Works described in [34,35] also propose tracking systems based on LoRa, GPS and Arduino to estimate the speed and geolocation of tourist boats in a protected park in Malaysia and tracking troops in Thailand, respectively.…”

Section: Geolocation and Tracking Through Lora/lorawanmentioning

confidence: 99%

Deployment of a Lorawan Network and Evaluation of Tracking Devices in the Context of Smart Cities

Camargo

Spanhol

Souza

2020

Preprint

View full text Add to dashboard Cite

Recent public cooperation between the Federal University of Technology Paraná and Toledo Municipality plans to implement the concept of smart cities in this city. In this context, one of the applications under development intends to track the recyclable garbage collector trucks in real time over the Internet. Actually, fleet vehicle tracking is one of the main applications for smart cities. LoRaWAN stands out among network technologies for smart cities due to operating in an open frequency range, covering long distances with low power consumption and low equipment cost. However, the coverage and performance of LoRaWAN is directly affected by both the environment and configuration parameters. In addition, tracking devices must be able to send its coordinates to the Internet even when the vehicle goes through zones where there are obstacles for electromagnetic waves, such as elevated buildings or valleys. In this paper we perform experimental investigations to evaluate four LoRaWAN tracking devices, two out of the box commercial and two assembled and programmed. The behavior of each tracking device is analyzed when moving through three representative urban areas. As the devices depend on the quality of the signal offered by the network, we also present the results of the development and evaluation of the LoRaWAN network, planning its coverage throughout the city. Results of tracking devices were analyzed under quantitative and qualitative aspects, including the received signal strength indication (RSSI), signal-to-noise ratio (SNR), package delivery ratio (PDR), and spreading factor (SF) for the geographic coordinates received.

show abstract

A long-range low-power wireless sensor network based on U-LoRa technology for tactical troops tracking systems

Cited by 23 publications

References 4 publications

A Survey on LoRaWAN Architecture, Protocol and Technologies

A Survey on LoRaWAN Architecture, Protocol and Technologies

Real-time Alarm, Dynamic GPS Tracking, and Monitoring System for Man Overboard

Deployment of a Lorawan Network and Evaluation of Tracking Devices in the Context of Smart Cities

Contact Info

Product

Resources

About