As a major feature of intelligent lighting , in fact, wireless control has been applied to lighting control as early as 2005, but due to various technical bottlenecks and cost constraints, it has become the mainstream of the market until now. Currently, the mainstream wireless transmission standards in the market include Zigbee, Bluetooth, and WiFi. According to industry insiders, Bluetooth has a short transmission distance and few transmission channels. WiFi consumes a lot of power and equipment costs are high. Therefore, for home lighting, Zigbee has advantages in both technology and cost. ZigBee is expected to become mainstream. specification. What is Zigbee? IEEE802.15.4 (Zigbee) Zigbee is a low-power personal area network protocol based on the IEEE802.15.4 standard. The technology specified under this protocol is a short-range, low-power wireless communication technology. The name comes from the bee's splay, because bees rely on flying and "zig" to shake the wings of the "dance" to convey the position of the pollen with the companion, that is, the bee relies on this way It constitutes a communication network in the group. It is characterized by close proximity, low complexity, self-organization, low power consumption, low data rate, and low cost. It is mainly suitable for use in the fields of automatic control and remote control and can be embedded in various devices. In short, ZigBee is a cheap, low-power, short-range wireless networking communication technology. ZigBee Technical Analysis ZigBee technology is developed and promoted by a ZigBee Alliance, a group of companies. The ZigBee Alliance is sponsored by seven well-known international companies, Honeywell, Invensys, Mitsubishi Electric, Samsung, Motorola, Philips and Ember. In November, the alliance participated in more than 100 companies, all of which have significant influence in the industry. ZigBee status and prospect analysis Although ZigBee applications are more and more, and chip shipments are increasing year by year, in general, the ZigBee market is still in the initial exploration stage, and there is no real take-off. The main reason is that the applicable terminal commercial products are still in the research and development. At the stage, there are not many real listings. There are few directions and areas for typical applications, and there are many peer-to-peer applications. There are few mesh network applications that embody the advantages of ZigBee, and there is a lack of large-scale networking applications that reflect ZigBee.
USB3.0 - also considered SuperSpeed USB - for those with PC or audio / high-frequency device to provide a variety of devices connected to a standard interface. From the keyboard to high-throughput disk drive, a variety of devices can use this low-cost interface for smooth operation of the plug and play connectivity, users basically do not spend too much thought in it. The new USB 3.0 to maintain compatibility with USB 2.0 also provides several enhancements to the following:
Greatly increased bandwidth - up to 5Gbps full duplex (USB2.0 was 480Mpbs duplex) to achieve better power management enables the host to provide more power for the device to achieve USB-rechargeable battery, LED lighting And mini-fan applications. Enable faster identification of the host device the new agreement makes data processing more efficient USB 3.0 storage device can be limited by the rate of transferring large amounts of stored files (such as HD movies). USB 3.0 Flash Drive,Type-C USB Stick,3.0 USB Flash Drive,3.0 Pen Drive Custom Usb Gift company limited , https://www.customusbgift.com
For example, a use of USB 3.0 flash drive in the 3.3 seconds to transfer 1GB of data to a host, and USB 2.0 requires 33 seconds. Consumer electronics devices by increasing the resolution and storage performance requirements driven by the hope that through a broadband Internet connection to achieve wider media applications, so users need faster transmission performance, to simplify the downloading, storage, and a large number of multimedia Content sharing. USB 3.0 to provide consumers with easy connectivity it needs played a crucial role. When the device when used in consumer, USB 3.0 will address not recognize USB2.0 devices without battery problems. Host to reduce the current through the USB 3.0 slow to recognize these devices, such as mobile phone battery has gone bad.
For the purposes of systems and ASIC developers, USB 3.0 chips and IP to ensure a wide range of practical requirements of each design can be met in a timely manner. The full range of support for standards such as USB 3.0 is particularly important because the speed, advanced protocol and a variety of cable length (from a few inches to several meters) makes the design and standards compliance as a challenge.