High Precision GNSS Technology
This technology can be achieved by combining multi GNSS GPS, GLONASS, Galileo, Beidou with RTK Real Time Kinematic technology. High precision GNSS solutions enable centimeter level accuracy in seconds to minutes, depending on the components, configuration options, or calibration data input. High-precision GNSS receivers are used in various fields such as autonomous driving (V2X), unmanned aerial vehicles (UAV), delivery robots, and unmanned agricultural machinery.
One area of application for high-precision GNSS receivers is safety systems for tower cranes on construction sites. There are numerous tower cranes on a construction site, and each tower crane has a safe operating zone(OSZ) measured based on the radius of the crane base. High precision GNSS receiver allow you to monitor the exact location of the tower crane in real time, allowing you to work safely even at construction sites where OSZ does not apply. Our high precision receivers adopt the ZED-F9P module from u-blox and are designed for use in a variety of high precision GNSS applications.
High precision GNSS solutions centimeter to sub-meter
High precision GNSS receivers can receive GNSS signals more quickly and accurately by using multiple satellites in multiple frequency (L1, L2, L5) bands. The satellite-specific frequencies of the UEF9P03 high-precision GNSS receiver are L1C/A (GPS/QZSS: 1575.420MHz), L1OF (GLONASS: 1602MHz + k*562.5kHz, k=-7,….,6), E1-B/C (Galileo : 1575.420MHz), B1l (BeiDou: 1561.098MHz), L2C (GPS/QZSS: 1227.600MHz), L2OF (GLONASS: 1246MHz + k*437.5kHz, k=-7,….,6), E5b (Galileo: 1207.140 MHz), B2l (BeiDou: 1207.140MHz).
The global representative satellite systems include the United States' GPS Global Positioning System , Europe's Galileo, Russia's GLONASS Global Navigation Satellite System , China's BeiDou BDS: BeiDou Navigation Satellite System , Japan's QZSS Quasi-Zenith Satellite System , India's NavIC
RTK technology introduces the concept of a base and a rover, and the base sends a continuous differential correction data stream (RTCM 3.3 protocol) to one or more rovers via a communication link. This enables the rover to compute its position relative to the base with high accuracy. The vector (or relative position) between base and rover is called the baseline.
In the standard RTK mode, the base remains static in a known position, while in the moving base (MB) RTK mode, both base and rover receivers can move. The latter is ideal for applications where the relative position offset between two moving vehicles is required such as, for example, the follow-me feature on an UAV. The moving base feature also enables derivation of the vehicle orientation by mounting two or three GNSS receivers on the same vehicle platform, that is, by fixing the position of the GNSS antennas relative to each other. Mounting two antennas on the X-axis gives heading and roll information and with three antennas you can drive full attitude; heading, roll and pitch. If the absolute position of the rover is required with high precision, the base unit can be provided with correction data as well. This will allow the base to enter RTK Fixed mode with the resultant improvement of absolute position accuracy. Without receiving corrections, the base will have standard 3D Fix position accuracy.
Embedded Computing Technology
This technology uses the Cortex-A53 Octa-cores, which are based on the ARMv8-A architecture. It provides
6.4 GB/s memory bandwidth for heavy traffic operations such as 1080p video encoding and decoding, 3D
graphics display and high-resolution image signal processing with Full HD display.
The embedded touch system consists of a TFT LCD, a touch panel and an ARM control board. It is designed
for industrial applications, especially medical care equipment as a main control unit.
S5P6818 provides the best 3D graphics performance with wide range of APIs, such as OpenGL ES1.1, 2.0. Superior 3D performance fully supports Full HD display. The native dual display, in particular, supports Full HD resolution of main LCD display and 1080p 60 frame HDTV display throughout HDMI, simultaneously. Separate post processing pipeline enables S5P6818 to make a real display scenario.
The XM series does not offer full performance of S5P6818 but is optimally developed for medical applications. It provides various interfaces such as display, communications, and memory. The XM series supports Linux 4.4.8 plus Qt 5.6 as an open-source project.
RF & Microwave Technology
The antenna is the element responsible for signal transmission and reception and is an essential component of a wireless communication system. It has all types of passive antenna technology in the frequency range of 400 MHz to 6 GHz and has a radio anechoic chamber for antenna passive and OTA tests.
Network connectivity is rapidly evolving into the most important trend in the automotive, mobility, and transportation industries. Today, many cars can gather information from the web via wireless communication and require technology that connects vehicles to vehicles (V2V), vehicle to infrastructure (V2I), vehicle to pedestrian (V2P), and vehicle to network (V2N). V2X stands for Vehicle to Everything, which means technology that can communicate with everything around the vehicle and requires all communication technologies such as GNSS technology, LTE technology, and 5G technology. Proper processing of V2X requires accurate location information and accurate time information of all objects, which can predict the next location of objects. In the field of autonomous driving, camera, LiDAR, radar, GNSS and V2X technologies are required, of which GNSS and V2X operate in wireless environments and require different types of RF antennas in various frequency bands.
- 4G band: 824~894MHz, 1710~1880MHz, 1920~2170MHz, 2500~2690MHz
- 5G band: 3400~3700MHz, 5850~5925MHz
- GNSS band: 1559~1610MHz(L1), 1197~1254MHz(L2), 1164~1188MHz(L5)
The GNSS antenna allows you to collect location and time information, and use the collected information to calculate the location, direction of progress, and speed of things. Using 4G and 5G communication technologies, we can exchange information with each other and achieve smooth traffic flow.
