MindMap Gallery UWB, which has been dormant for many years, will enter an explosive period
UWB, which has been dormant for many years, will enter an explosive period: with high positioning accuracy, fast transmission speed, and strong security, UWB is getting closer and closer to our lives. Let’s take a look.
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This is a mind map about bacteria, and its main contents include: overview, morphology, types, structure, reproduction, distribution, application, and expansion. The summary is comprehensive and meticulous, suitable as review materials.
This is a mind map about plant asexual reproduction, and its main contents include: concept, spore reproduction, vegetative reproduction, tissue culture, and buds. The summary is comprehensive and meticulous, suitable as review materials.
This is a mind map about the reproductive development of animals, and its main contents include: insects, frogs, birds, sexual reproduction, and asexual reproduction. The summary is comprehensive and meticulous, suitable as review materials.
UWB, which has been dormant for many years, will enter an explosive period
What is UWB
UWB is a short-range communication method based on the IEEE 802.15.4z wireless standard, designed to provide precise positioning and secure communication. The technical principle is to use extremely short electromagnetic pulses to transmit data, and determine the position of the object by calculating the time difference between the receiver and the transmitter. The target can be located within a range of a few centimeters to a few millimeters. The frequency bands it uses include 3.1-4.8GHz low-frequency band and 6-10.6GHz high-frequency band, so it is called "ultra-wideband".
Main advantages
High positioning accuracy: UWB uses high-frequency pulses and uses time of flight (ToF) to accurately measure distance and position. It can easily achieve centimeter-level positioning functions within a distance of 10 meters, and can accurately position indoors and underground. For example, NIO’s mobile phone can accurately locate each occupant in the car. NXP has even cooperated with the German company LaterationXYZ to gain the ability to use UWB technology to achieve millimeter-level precise positioning of other items.
High security: UWB adds a secure timestamp to the signal. Only after matching the rolling code on the receiving end, can the corresponding timestamp be obtained and the vehicle unlocked, which greatly improves the ability to prevent relay attacks; in addition, UWB can Accurately locate the key location within a meter range. If the ToF flight time is too long, the system will determine whether the car key is within the effective range, making it impossible for attackers to deceive the system.
Strong anti-interference: UWB uses time-hopping spread spectrum signals, and the system has a large processing gain. When transmitting, it disperses weak radio pulse signals in a wide frequency band, and the output power is even lower than the noise generated by ordinary equipment. The signal energy is restored during reception, and spread spectrum gain is generated during the despreading process.
Fast transmission rate: UWB uses a bandwidth above 1GHz, and the data transmission rate within a distance of 10 meters can reach dozens of Mbps, or even close to 100Mbps, which is a little lower than Wi-Fi, but much higher than Bluetooth.
Application fields of UWB technology: UWB technology was previously mainly used in military, industrial, medical and other industries. In recent years, it has gradually entered the consumer field and automotive field. In B-end markets that need positioning such as factories, coal mines, and semiconductor companies, the UWB market is mainly dominated by QORVO; while in the field of mobile phones, UWB supply is dominated by two suppliers, NXP and QORVO. In addition, UWB technology is also used in fields such as Internet of Vehicles and smart homes.
Where is UWB strong?
UWB positioning technology can be used in various scenarios that require precise positioning and communication to improve production efficiency, management efficiency, service levels, medical efficiency, and entertainment experience.
UWB positioning technology can be applied to the following scenarios
Factories, warehouses, logistics: UWB can accurately locate people and materials in factories and warehouses, improving production efficiency and management efficiency. For example, in the field of logistics, UWB technology can achieve precise positioning and tracking of packages, improving logistics efficiency and accuracy.
Smart home: UWB can be used in homes to communicate between smart TVs, audio, air conditioners and other home appliances to achieve remote control and automation control.
Smart city: UWB can be used in smart transportation, smart parking, smart security and other fields in cities to improve urban management and service levels.
Healthcare: UWB can be used in the medical field for precise positioning of patients and medical staff to improve medical efficiency and safety. For example, in the operating room, UWB technology can be used to achieve precise positioning and tracking of surgical instruments, improving the accuracy and safety of surgery.
Entertainment field: UWB can be used to achieve precise positioning and interaction in games, improving the realism and immersion of games.
Vehicle positioning: UWB can be used for precise positioning and navigation in vehicles, improving driving safety and convenience. For example, in autonomous vehicles, UWB technology can achieve precise positioning and communication between vehicles, improving vehicle safety and traffic efficiency.
Future prospects of UWB technology
The competitive landscape of UWB chip suppliers: Currently, only three companies in the world, Apple, NXP, and QORVO, can supply UWB single chips on a large scale. In the field of automotive-grade UWB chips, NXP is the only supplier. However, mainland China started late in the field of UWB chip design. There are already some companies developing UWB chip products. The competition in this market will still be very fierce in the future.
UWB indoor positioning technology: UWB is a technology that achieves ranging and positioning by transmitting and receiving ultra-wideband electromagnetic pulses. It has the advantages of high precision, high accuracy and strong multipath suppression capability, and is suitable for indoor positioning and other fields. With the continuous development of technologies such as the Internet of Things and 5G, UWB indoor positioning technology will also be more widely used.
Comparison of UWB with Bluetooth, Wi-Fi and other technologies: Compared with Bluetooth, Wi-Fi and other technologies, UWB has higher transmission speed and lower latency, and is suitable for fast data transmission and sharing between close-range devices. . In addition, UWB also has the characteristics of high speed, low power consumption and security, and can be widely used in smart cars, smart homes and other fields.
Development trend of UWB technology: With the continuous development and application of UWB technology, UWB technology will show the following development trends in the future: First, UWB technology will be combined with the Internet of Things, 5G and other technologies to achieve wider applications; secondly, UWB technology will The transmission speed and accuracy will be further improved; finally, as the consumer market continues to expand, the application scenarios of UWB technology will also continue to expand.
UWB applications in the automotive field
The application of UWB technology in the automotive field has broad prospects and potential, which can improve the safety, intelligence and automation level of vehicles, as well as improve road safety and traffic efficiency.
The application of UWB in the automotive field is mainly reflected in the following aspects:
Digital car key: UWB technology can realize the digital car key function through mobile devices such as mobile phones, improving the safety of starting and unlocking the vehicle. Compared with traditional NFC or Bluetooth technology, UWB digital keys have higher accuracy and security, while providing a better degree of freedom and can be seamlessly connected with mobile devices such as mobile phones to achieve more personalized functions. For example, it can automatically start the car, log in to the digital cockpit, open maps and music, etc.
Vehicle positioning: UWB technology can achieve precise positioning and tracking of vehicles through high-precision positioning and ranging. For example, in intelligent transportation, UWB technology can be used for communication and collision warning between vehicles, improving road safety and traffic efficiency. In addition, UWB technology can also be used for vehicle theft prevention and tracking, achieving precise positioning and tracking of vehicles through high-precision positioning and ranging.
Internet of Vehicles: UWB technology can be used for data transmission and communication in Internet of Vehicles applications. For example, in autonomous vehicles, UWB technology can be used for communication and collision warning between vehicles to achieve more accurate, reliable, and efficient communication and data transmission. In addition, UWB technology can also be used for remote control and diagnosis of vehicles to improve the intelligence and automation level of vehicles.
Smart Home: UWB technology can also be used for data transmission and communication in smart home applications. For example, in smart homes, UWB technology can be used for communication and control between home appliances to achieve faster, more accurate and more efficient communication and data transmission.
Functional expansion in the transportation field
UWB technology has broad application prospects in the automotive field. It can improve the safety, intelligence and automation level of vehicles, as well as improve road safety and traffic efficiency. With the continuous development and popularization of technology, UWB applications in the automotive field will become more and more widespread.
UWB can also be used in the following aspects in the automotive field
Vehicle anti-collision warning system: UWB can monitor the distance and position relationship between vehicles in real time through high-precision ranging and positioning technology. When there is a risk of collision, timely warnings can be issued to improve driving safety.
Vehicle tracking and monitoring system: UWB can achieve high-precision positioning and speed measurement, and is suitable for vehicle tracking and monitoring systems. For example, in logistics and transportation, real-time tracking and monitoring of vehicles can be achieved through UWB technology, improving logistics efficiency and transportation safety.
Vehicle communication system: UWB technology can achieve high-speed, high-reliability data transmission and is suitable for vehicle communication systems. For example, in autonomous vehicles, UWB technology needs to be used to achieve real-time communication and data transmission between vehicles and between vehicles and roadside equipment.
In-vehicle entertainment and information systems: UWB can be connected with other in-vehicle devices such as audio, navigators, car phones, etc. to achieve richer in-vehicle entertainment and information systems. For example, wireless music transmission, wireless games, etc. can be realized through UWB technology.
Internet of Vehicles: UWB can be used as one of the communication technologies of the Internet of Vehicles (V2X) to realize real-time communication and data transmission between vehicles and vehicles and roadside equipment. For example, in intelligent transportation, UWB technology can provide more accurate, reliable, and efficient communication and data transmission.