Abstract
In this work, a wireless remote-control function and fuzzy control function were added to the mini-loader of a hybrid gas-electricity powertrain. The loader uses a long-range (LoRa) protocol for communication, which is capable of long-distance signal transmissions and has a high level of sensitivity. A frequency-hopping mechanism based on received signal strength, center frequency, and sensitivity information was constructed for the LoRa system, which aids the transmission of information over long distances in a stable manner. This allows the loader to be utilized in remote regions or topographically complex areas. A fuzzy controller was incorporated to alleviate the fuel consumption problems of the hybrid powertrain and provided efficient and stable hybrid power by tuning the torque and rotation speed of the motor. The functionalized mini-loader has achieved data transfer success rates greater than 90% in wireless transmissions within a range of 100 m. The energy consumption of the functionalized powertrain was lowered by 8%.
Highlights
The increasing severity of extreme weather events in recent years has greatly increased the frequency and strength of natural disasters around the globe
Both these products are simple remote-controlled systems that do not possess any Internet of Things (IoT) capabilities, and they cannot be used for disaster relief communications
We adopted fuzzy control in this study to improve the performance of the system
Summary
The increasing severity of extreme weather events in recent years has greatly increased the frequency and strength of natural disasters around the globe. The LP401 developed by Hard-Line (USA) [3] is a remotecontrolled mini-loader with an operating range of 50 m, and it can be used to perform operations such as tunnel excavation and conveyor cleaning in areas that cannot be accessed by human workers Both these products are simple remote-controlled systems that do not possess any Internet of Things (IoT) capabilities, and they cannot be used for disaster relief communications. Wireless communication with the loader was performed using the LoRa protocol to enable the construction of a longdistance, low-power, and low-cost remote-controlled system. The operability and energy efficiency of the hybrid mini-loader were increased by functionalizing the wireless remote-control function and control system. The microcontroller and fuzzy controller are used to improve the operation abnormality, safety, and energy consumption of the hydraulic system
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