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The future development direction of UWB indoor positioning technology is to combine indoor and outdoor positioning technologies to achieve seamless positioning and location. Existing network technology cannot fully meet this requirement, and the UWB personnel indoor positioning system has the advantages of low power consumption, good anti-multipath effect, high security, low system complexity, and extremely high positioning accuracy. Among many wireless indoor positioning solution technologies, Hengwang Technology stands out.
UWB Indoor Positioning Technology Principle
Ultra-wideband (UWB) is a new wireless communication technology. Hengwang Technology follows the standards of the Communications Commission. Ultra-wideband has an operating frequency band of 3.1~10.6GHz, a system bandwidth of -10dB greater than 20%, or a system bandwidth of at least 500MHz. Through up-conversion methods such as differential modulation and mixing, an extremely short narrow pulse at the time of transmission can generate an ultra-wideband signal in the UWB operating frequency band. Its advantages are low power consumption, insensitivity to channel fine-tuning, strong anti-interference, no interference to other devices in the same environment, strong penetration, high positioning accuracy, and high positioning accuracy.
High-precision UWB wireless indoor positioning system
Hengwang Technology's high-precision UWB wireless indoor positioning system can meet the high-precision positioning requirements of personnel, equipment and vehicles in industrial sites. This system can provide a better 15-30cm level, 30-50cm positioning accuracy under general occlusion; it can achieve multi-region cascading, cross-region roaming, multi-floor positioning, adaptive completion of 1D, 2D, 3D positioning, and presence detection.
UWB Wireless Indoor Positioning System Solution
The indoor positioning solution is developed based on the principle of wireless ultra-narrow pulse waves. It has the advantages of good stability, high positioning accuracy, and high efficiency. It is especially suitable for construction sites such as warehouses, tunnels, subways, railways, and ports. The UWB wireless indoor positioning system uses advanced ultra-narrow pulse flight time measurement technology to complete the underlying positioning/timing; combined with the position positioning algorithm, it completes the upper-level positioning. The positioning system consists of four parts: positioning hardware layer, network connection layer, data solution layer, and application layer. In the radio positioning system, the positioning hardware layer is the main part of the positioning function, including positioning micro base stations and positioning micro tags; the network connection layer is used to transmit the collected positioning micro base station data back to the data center; the data solution layer is the key to completing the tag position calculation; the application layer is based on user needs to complete the emergence of the transaction layer.
Technical level of indoor positioning solutions
With the rapid development of short-range radio technology and the advancement of wireless LAN technology, the technical level of indoor positioning solutions is also constantly improving. While the GPS global positioning system provides very good outdoor positioning information, the demand for indoor positioning information is also growing. Airports, exhibition halls, office spaces, warehouses, underground parking lots, prisons, military training bases, etc. all need to use indoor positioning information to effectively manage available space and inventory materials. Ultra-wideband communication technology is a wireless communication technology developed in recent years. Due to its unique performance, it can provide indoor orientation information, so it is very suitable for indoor positioning systems. Let's take a look at the setting rules of UWB indoor positioning base stations!
UWB Indoor Positioning Base Station
UWB indoor positioning technology is an extremely narrow pulse wireless technology with high transmission rate, low transmission power, strong penetration ability and no carrier. It is these advantages that make it more effective in indoor positioning. Ultra-wide room positioning technology generally adopts the ranging positioning algorithm demonstrated by TDOA, that is, the ultra-wide room positioning system of signal arrival time difference and hyperbola cross positioning, which includes the generation, transmission, reception and processing of extremely narrow pulse signals by the radio system. The indoor UWB positioning system consists of a UWB interface, a UWB reference tag and an automatic UWB tag. During the positioning process, the UWB receiver receives the UWB signal emitted by the tag, filters out various interference noises mixed in the electromagnetic wave transmission process, obtains a signal containing useful information, and then performs ranging positioning calculation and analysis through the central processor.
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千斤顶