Abstract: The present application relates to a luminescent material and a preparation method thereof. The luminescent material having a chemical formula of M1-x-y-zNbO3:xPr,yEr, where M is alkali metal element, 0.001?x?0.05, 0.001?y?0.1, and ?0.05?z?0.05. The luminescent material is a dual-lifetime (fluorescence and long-lasting luminescence) and colorful (red, orange, yellow, yellow green and green) renewable luminescent material that respond to multiple stimulation (heat, force and light), and has a characteristic of multidimensional identifiability such as excitation mode, luminescence lifetime and luminescence color.

Abstract: The present application relates to a luminescent material and a preparation method thereof. The luminescent material having a chemical formula of M1-x-y-zNbO3:xPr,yEr, where M is alkali metal element, 0.001?x?0.05, 0.001?y?0.1, and ?0.05?z?0.05. The luminescent material is a dual-lifetime (fluorescence and long-lasting luminescence) and colorful (red, orange, yellow, yellow green and green) renewable luminescent material that respond to multiple stimulation (heat, force and light), and has a characteristic of multidimensional identifiability such as excitation mode, luminescence lifetime and luminescence color.

Abstract: A ZIGBEE network-based data transmission method used to resolve a problem, that when a ZIGBEE network to which interference is relatively large is used to perform data transmission, a relatively low success rate of data transmission may be caused. The method includes, when detecting that a current working channel is interfered, acquiring, by a first routing node, interference energy intensities of remaining channels, determining that channels whose interference energy intensities are less than a first threshold are available switching channels, and sending a channel report message to an upper-layer routing node, where the channel report message includes all available switching channels, receiving a channel switching message sent by the upper-layer routing node, and switching to a target switching channel indicated by the channel switching message and receiving data using the target switching channel.

Abstract: A ZIGBEE network-based data transmission method used to resolve a problem, that when a ZIGBEE network to which interference is relatively large is used to perform data transmission, a relatively low success rate of data transmission may be caused. The method includes, when detecting that a current working channel is interfered, acquiring, by a first routing node, interference energy intensities of remaining channels, determining that channels whose interference energy intensities are less than a first threshold are available switching channels, and sending a channel report message to an upper-layer routing node, where the channel report message includes all available switching channels, receiving a channel switching message sent by the upper-layer routing node, and switching to a target switching channel indicated by the channel switching message and receiving data using the target switching channel.