Abstract: A streetlamp fault detection apparatus and a streetlamp fault detection method thereof are provided. The streetlamp fault detection apparatus is coupled to a streetlamp loop, and stores an impedance condition table defining a reference impedance range and a non-reference impedance range. The streetlamp fault detection apparatus measures a total impedance value of the streetlamp loop in a measurement period, determines that the streetlamp loop is in a normal operating state if the total impedance value stably falls within the reference impedance range in the measurement period, and determines that the streetlamp loop is in a fault state if the total impedance value falls into the non-reference impedance range in the measurement period.

Abstract: An electricity consumption measurement apparatus, an electricity consumption measurement method, and a non-transitory tangible machine-readable medium thereof are provided. The electricity consumption measurement apparatus comprises a detector and a processor electrically connected to the detector. The detector is configured to detect an electricity consumption value and a voltage value. The processor is configured to calculate a variation rate according to the voltage value and a base voltage value. The processor adjusts the electricity consumption value according to the variation rate. The electricity consumption measurement method is able to perform the same operations as those performed by the electricity consumption measurement apparatus.

Abstract: A streetlamp fault detection apparatus and a streetlamp fault detection method thereof are provided. The streetlamp fault detection apparatus is coupled to a streetlamp loop, and stores an impedance condition table defining a reference impedance range and a non-reference impedance range. The streetlamp fault detection apparatus measures a total impedance value of the streetlamp loop in a measurement period, determines that the streetlamp loop is in a normal operating state if the total impedance value stably falls within the reference impedance range in the measurement period, and determines that the streetlamp loop is in a fault state if the total impedance value falls into the non-reference impedance range in the measurement period.

Abstract: An electric power monitor device is provided. The electric power monitor device is electrically connected to an alternating current source which supplies electric power to a plurality of under-test current loops. The electric power monitor device comprises a voltage input interface, a voltage measuring unit, a plurality of current measuring components and a processing unit. The voltage input interface is configured to receive an input power source from the alternating current source. The voltage measuring unit is configured to generate voltage values based on the input power source. The current measuring components are capable of adjusting phase configuration based on different phases of the wires of the current loops, and are configured to determine current values of the current loops. The processing unit is configured to calculate an electric power monitor value according to the voltage values and the current values.

Abstract: An electricity consumption measurement apparatus, an electricity consumption measurement method, and a non-transitory tangible machine-readable medium thereof are provided. The electricity consumption measurement apparatus comprises a detector and a processor electrically connected to the detector. The detector is configured to detect an electricity consumption value and a voltage value. The processor is configured to calculate a variation rate according to the voltage value and a base voltage value. The processor adjusts the electricity consumption value according to the variation rate. The electricity consumption measurement method is able to perform the same operations as those performed by the electricity consumption measurement apparatus.

Abstract: A method for reconnecting a wireless system in an interference environment is provided. The wireless system comprises a host and an end device. The method searches an available communication channel between the host and the end device asynchronously. The end device informs the host of the condition of the qualified channels through the available communication channel. The host determines the most suitable channel from the qualified channels for reconnection between the host and the end device, and then informs the end device of the most suitable channel through the communication channel. The host and the end device hence switch to the most suitable channel.