Baidu Encyclopedia's explanation for Zigbee is: "ZigBee is a low-power LAN protocol based on the IEEE802.15.4 standard. It is a short-range, low-power wireless communication technology. This name (also known as the Zigbee protocol) comes from bees. The splayed dance, because the bee is relying on flying and "zig" to shake the wings of the "dance" to convey the position information of the pollen with the companion, that is to say, the bee relies on this way to form the communication in the group. The internet."
ZigBee has always given the impression of an advanced technology and the best wireless communication technology in smart homes . This is related to the emergence of ZigBee at the beginning of the media. It is undeniable that people's longing for smart homes will never stop. Before the launch of ZigBee, the industry lacked reasonable smart home communication technology, and the emergence of ZigBee technology once again ignited people's good wishes for smart home. . In this context, people have great expectations for ZigBee technology, hoping to solve the communication between smart home devices, which gives people the impression of "advanced" ZigBee technology. It is undeniable that ZigBee has its advantages such as: Strong anti-interference ability, good confidentiality, fast transmission, strong scalability and so on. But is it really perfect? In fact, each technology has its limitations, and ZigBee is no exception. Let's talk about some misunderstandings about ZigBee.
Is the cost really low?
At present, the ZIGBEE chip shipments of TI's CC2430, CC2530 and Freescale's MC1319X, MC1322X series, the cost is about 2 to 3 dollars, and considering other peripheral devices and related 2.4G RF devices, BOM cost is difficult to low. For $10, the cost-sensitive home appliances that require a large number of nodes for smart homes are costly.
Is communication really stable?
At present, the domestic Zigbee technology mainly uses the 2.4G frequency in the ISM band, which is limited by the physical limitation of the frequency band. The signal interference degree is extremely serious, the diffraction ability is weak, and the wall penetration capability is also weak. In the actual environment, a wall and a door will also greatly reduce the signal. It is easy to cause instability and affect the user experience.
Cable Management refers to an important step during the installation of building services (i.e. electrical services) and the subsequent installation of equipment providing means to tidily secure electrical, data, and other cables.
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19 Inch Cable Management Frame
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