Abstract:
A system and method of monitoring in-pen livestock by using edge information about livestock are provided. The method controls a plurality of edge lightings and cameras installed in a pen by using a synchronization signal and accurately acquires and synthesizes edge information about livestock obtained on the basis of a control result to generate monitoring information about livestock.
Abstract:
Disclosed is a device for controlling transmission power in CAN communication, including: a controller area network (CAN) interface configured to receive transmitted data through a CAN BUS; a message priority management unit configured to read an arbitration ID included in the received data, and determine a priority of the received data; and a transmission power level selection unit configured to determine a transmission power level according to the priority.
Abstract:
Provided is an apparatus and method for predicting the remaining lifetime of an environment data collection sensor in a livestock house. The method for predicting the remaining lifetime of an environment data collection sensor in a livestock house includes (a) collecting livestock house environment information, (b) detecting an error of a sensor from the collected livestock house environment information, (c) generating a dataset for learning, (d) generating a sensor lifetime prediction model to performing learning, and (e) predicting a lifetime of the sensor using a result of the learning.
Abstract:
A cloud system for a big data process, and an operation method thereof. A cloud operation method of processing big data includes: receiving a cluster rule; monitoring a cluster resource and a cluster task; adding a cluster resource based on the cluster rule and a cluster resource monitoring value; and replicating a cluster based on a cluster rule and a cluster task monitoring value, wherein the cluster rule may include at least one of a resource assignment threshold value, a resource amount to be assigned, a task threshold value, and a number of replicated clusters.
Abstract:
An error diagnosing method performed by an apparatus for diagnosing an error of operating equipment in a smart farm includes: receiving a control message which triggers an error diagnosis; analyzing data collected from a smart farm on the basis of a preset error diagnostic rule when the control message is received; outputting a result of determining whether an error of the operating equipment installed in the smart farm occurs according to an analysis result; and providing the error determination result to a user through a user interface. It is possible to stably operate and efficiently manage a smart farm.
Abstract:
A received signal strength indicator is provided. The received signal strength indicator includes a plurality of differential amplifiers forming an amplifier chain for amplifying differential signals and a plurality of rectifiers for rectifying signals output from the plurality of differential amplifiers and the differential signals, and a low pass filter for combining the signals rectified by the plurality of rectifiers to output received signal strength. Each rectifier includes a class AB voltage-current converter for converting a differential voltage into a current, and two triode transistors.