WITHDRAWN: A comparative analysis of long range and NB-IoT in terms of quality of connectivity

Prasad, Pushkala; Heera, H.; Padmaja, N.; sony, Bathala

doi:10.1016/j.matpr.2020.12.350

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…To realize the purpose of intelligent diagnosis of the centrifugal pump, the data acquisition equipment installed on the centrifugal pump is designed and developed to provide a data basis for the realization of the system functions, mainly including wireless sensors, wired sensors, and intelligent collectors. The wireless sensor is connected with the cloud platform data layer interface through NB-IoT [ 34 , 35 ] to form a wireless application scheme; the wired sensor result is connected to the data collector, and the data collector uploads the collected result to the cloud server through 4G communication to form a wired application. Solution: according to the different application scenarios of the monitored pump, wireless or wired sensors can be used to complete data collection.…”

Section: Smart Collection Equipmentmentioning

confidence: 99%

Monitoring and Predictive Maintenance of Centrifugal Pumps Based on Smart Sensors

Chen

Wei

Wang

et al. 2022

Sensors

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Centrifugal pumps have a wide range of applications in industrial and municipal water affairs. During the use of centrifugal pumps, failures such as bearing wear, blade damage, impeller imbalance, shaft misalignment, cavitation, water hammer, etc., often occur. It is of great importance to use smart sensors and digital Internet of Things (IoT) systems to monitor the real-time operating status of pumps and predict potential failures for achieving predictive maintenance of pumps and improving the intelligence level of machine health management. Firstly, the common fault forms of centrifugal pumps and the characteristics of vibration signals when a fault occurs are introduced. Secondly, the centrifugal pump monitoring IoT system is designed. The system is mainly composed of wireless sensors, wired sensors, data collectors, and cloud servers. Then, the microelectromechanical system (MEMS) chip is used to design a wireless vibration temperature integrated sensor, a wired vibration temperature integrated sensor, and a data collector to monitor the running state of the pump. The designed wireless sensor communicates with the server through Narrow Band Internet of Things (NB-IoT). The output of the wired sensor is connected to the data collector, and the designed collector can communicate with the server through 4G communication. Through cloud-side collaboration, real-time monitoring of the running status of centrifugal pumps and intelligent diagnosis of centrifugal pump faults are realized. Finally, on-site testing and application verification of the system was conducted. The test results show that the designed sensors and sensor application system can make good use of the centrifugal pump failure mechanism to automatically diagnose equipment failures. Moreover, the diagnostic accuracy rate is above 85% by using the method of wired sensor and collector. As a low-cost and easy-to-implement solution, wireless sensors can also monitor gradual failures well. The research on the sensors and pump monitoring system provides feasible methods and an effective means for the application of centrifugal pump health management and predictive maintenance.

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Section: Smart Collection Equipmentmentioning

confidence: 99%