摘要:
Provided are a power monitoring apparatus of standby power saving type, an electric load device, and a power monitoring method. The power monitoring apparatus of standby power saving type includes: a power metering module measuring a power consumption situation of an electric load device, transmitting a measured result to a communication module, and switching off when a standby mode of the electric load device is held for more than a preset time or the electric load device is off; the communication module being supplied with power upon the switching-on, transmitting a power consumption value received from the power metering module to exterior, being supplied with standby power upon the switching-off to wait for receiving a call signal, and switching on a switch upon reception of the call signal; and a charging module starting charging upon the switching-on, and supplying standby power to the communication module upon the switching-off.
摘要:
Disclosed herein are an electronic tag, an ESL system, a method for setting time information of the ESL system, and a method for operating the ESL system. The electronic tag includes: a communication interface unit transmitting and receiving data; a display unit displaying the information of the product; a power supply unit supplying power; a control unit controlling the communication interface unit, the display unit, and the power supply unit and processing data; and a memory unit storing data required to process data in the control unit, and the control unit possesses time information appropriated in real time.
摘要:
There is provided an electronic shelf label including an image display unit displaying a first image; a sensor unit detecting image switching signals; and a processor unit determining whether the image switching signals detected by the sensor unit are valid and switching the first image displayed on the image display unit to a second image when the image switching signals are valid, and a communication unit receiving a plurality of image data displayed on the image display unit. The processor unit determines that the image switching signals are valid when a detection duration time of the image switching signals is longer than a predetermined first threshold time. By this configuration, the electronic shelf label can switch a plurality of images and reduce the influence of disturbance to thereby prevent unnecessary image switching. Further, the electronic shelf label can provide product-related information for a manager or the like as well as for a purchaser.