Blogs

With the continuous development of technology, GNSS (Global Navigation Satellite System) receivers have become an indispensable part of our lives, providing us with accurate location information and navigation functions. However, to ensure that your GNSS receiver is performing at its best, timely firmware upgrades are crucial. In this blog, we will discuss the importance of upgrading GNSS receiver firmware and how to do it safely.

The evolution of Global Navigation Satellite Systems (GNSS) has been pivotal in revolutionizing precise positioning across industries. In recent years, a significant stride in this domain has been the integration of Laser Pointing Technology into GNSS receivers. ComNav Technology ventured into these uncharted waters to develop a highly advanced GNSS unit with laser pointer and has gone to create a family of receivers with different capabilities of Laser and GNSS. This convergence signifies a groundbreaking advancement, enhancing accuracy, reliability, and applicability across diverse sectors.

With the development of global satellite navigation systems, RTK technology has also gradually evolved and improved. In this process, multiple satellite navigation systems such as GPS, GLONASS, Galileo, and BeiDou have successively introduced multi-frequency signals, providing possibilities for achieving higher positioning accuracy.

Precise Point Positioning (PPP) technology can achieve high-precision positioning anywhere in the world. Compared with real-time dynamic differential positioning technology, PPP technology does not require a dense reference station network, but its accuracy relies on high-precision satellite orbits and clock deviation products. The Galileo satellite navigation system is a global navigation satellite system (GNSS) jointly developed by the European Union (EU) and the European Space Agency (ESA). Among them, the High Accuracy Service (HAS) issued by the Galileo satellite navigation system can provide real-time precision single point positioning (PPP) services worldwide. Since the birth of the Galileo satellite navigation system, many domestic and foreign scholars and experts have conducted a large amount of research on satellite signal modes, satellite data quality, navigation algorithms, positioning performance evaluation and other aspects based on simulated data or measured data.

​ComNav, a global leader in GNSS technology, has unleashed a groundbreaking innovation that is set to redefine the landscape of Geographic Information System (GIS) mapping. The High Precision GIS Pocket Tablet P6H combines the convenience of a handheld device with cutting-edge GNSS technology, making it a game-changer for GIS specialists and investors alike. This article explores the remarkable features and potential impact of ComNav's P6H on the GIS sector.

The 23 March CME arrived at around 24/1411 UTC. Severe (G4) geomagnetic storming has been observed and is expected to continue through the remainder of the 24 March-UTC day and into the first half of 25 March. The alert issued by NOAA's Space Weather Prediction Center in Boulder, Colorado.

Galileo, Europe's Global Navigation Satellite System, introduced the High Accuracy Service (HAS) to enhance positioning precision. The implementation of HAS in Africa holds substantial promise for revolutionizing Positioning, Navigation, and Timing (PNT) services across the continent. This article examines the transformative impact of Galileo's HAS in Africa and explores the valuable insights that other GNSS constellations can glean from its successful application.

This blog delineates the meticulous process of logging raw observation data from your GNSS device. This data serves a dual purpose: primarily, it is indispensable for post-processing analysis, and secondarily, it furnishes valuable debug information for troubleshooting anomalies. We'll delve into both aspects comprehensively.

In an impressive display of technological prowess, ComNav Technology Ltd. has completed a challenging scanning demonstration with the LS300 Laser Scanner. This test highlighted not just the speed of the LS300, but also the exceptional quality of data it can collect, setting a new benchmark in precision scanning solutions.

SinoGNSS K8 series modules have been fully upgraded. The latest V8 official firmware version supports both PPP and RTK, users have the flexibility to switch between different work modes. SinoGNSS modules support PPP service including PPP-B2b from Beidou, and PPP-HAS from Galileo, no matter where you located, you can benefit from the PPP service. In this article, we will introduce the configuration step by step, to help you enable PPP option.

Event technology refers to enhancing the acquisition and utilization of location information by capturing and processing specific events related to location.The technology records the precise moment and precise coordinate information of an event. When the module receives the EVENT triggers pulse signal, it locks the data at the corresponding time in time for processing, and outputs the original observation, time, position and other information.

Innovation in Global Navigation Satellite Systems (GNSS) technology has transformed various industries, and the realm of lawn mowing is no exception. Navigation and positioning is a key part of the lawn mower's ability to operate autonomously, the integration of GNSS applications into lawn mowers has led to a revolution, offering precise and efficient solutions that benefit both users and society at large.

Global Navigation Satellite Systems (GNSS) serve as indispensable tools for precise positioning and navigation across various fields. However, positioning along the equator presents unique challenges due to several factors such as ionospheric disturbances, satellite geometry, and multipath effects. This article aims to delineate these challenges and provide strategies to mitigate their impact on GNSS users operating in equatorial regions.

ComNav Technology Ltd. has recently unveiled an innovative update to its K8 GNSS Module - the 'appscene' command. This groundbreaking development promises to enhance the adaptability and precision of the K803 module across various application scenarios.

As more and more of users integrate ComNav high precision GNSS modules into various applications, such as Robotics, UAV, Surveying and Mapping, Precision Agriculture, Automatic Driving, to improve the system's debuggability, it is advisable to reserve a port for communication with the internal module in ComNav's high precision GNSS modules. This allows users to easily view module information at a later time and access the data for analysis when needed.

In this article, we will have a general introduction of SinoGNSS data link modules, and show detail steps on how to setup it during integration.ComNav provides mainly two types of datalink modules, one is U50 series which can be compatible with other brands on the market, another one is U70 series which is special designed for longer working distance.

In today's advanced technological era, accurate positioning has become a cornerstone for numerous applications, ranging from agriculture to construction and beyond. But what exactly is RTK, and how does it stand out in the vast landscape of satellite navigation systems?

In previous blog, we introduced how to setup a static observation, in today’s article, we will introduce the steps of configuring static parameters with K8 GNSS receivers. SinoGNSS K8 GNSS receivers allow to modify logging parameters like sample interval, data format and other parameters via WEB UI or data collection software Survey Master, and start data logging. In this article, we will introduce steps of the two methods.

Static observation is a commonly used method in geographical surveying and navigation for accurately measuring the coordinates of points. In static observation, a receiver remains stationary at the observation point and collects satellite signal data over a period of time. These satellite signals contain navigation information transmitted by satellites, and by analyzing these signals, the coordinates of the receiver's location can be calculated. Static observation typically requires a longer observation time to enhance measurement accuracy.

PPS is a precise time marker that emits a pulse every second. The emission of this pulse is extremely accurate, typically with an error in the nanosecond range. A pulse per second (PPS or 1PPS) is an electrical signal that has a width of less than one second and a sharply rising or abruptly falling edge that accurately repeats once per second. PPS signals are output by radio beacons, frequency standards, other types of precision oscillators and some GPS receivers.

​Upon receiving any GNSS modules/GPS modules for the first time, it's natural to want to verify certain essential information. To assist you with SinoGNSS K8-series GNSS modules in this process, We've compiled a list of frequently used checking commands that we'd like to share with you today.

In today's article, we will introduce the most frequently used information about the system configuration. By command “log sysconfig”, clients can check basic configuration, rtk configuration and work mode like PPS, Event, and SBAS.

GNSS receivers operating in the single-point autonomous mode offer a horizontal accuracy of around 1.5 meters. While this might sound precise, it often experiences significant drift due to pseudorange accuracy inconsistencies and a lack of correction inputs during positioning calculations. In specific applications, like agricultural guidance systems, it isn't the absolute accuracy that counts but the relative precision across continuous epochs and adjacent paths. Discontinuities, even minor ones, can be highly problematic for users.

​In response to user feedback, we have noticed that some users encounter issues when setting the K8 GNSS module in RTK mode using the 'interfacemode' command. In this blog, we will provide a detailed explanation of these commands and their logical usage.

NMEATALKER (Sentence ID) (Talker ID) Sentence Identifier (ID): 10 sentence identifiers are available: GGA, GSA, GSV, GST, ZDA, HDT, RMC, VTG, GLL, ALL Among these 10 identifiers, the first 9 are sentence identifiers and the last one (‘ALL’) is used to fulfill the function of manipulating all the first 9 identifiers.

How to register your module/receiver? Registration status checking, After you connect device in CRU software, you can send below command to check current registration information.

Compass Receiver Utility (CRU) is professional Windows-based configuration software developed by ComNav Technology. Using the CRU software, you can convert the original observation data (cnb) into Rinex format; configure the parameters of the static collection of the receiver (only the receiver of the K7 platform is supported, the receiver of the K8 platform needs to use webUI configuration);

Low-power Anti-interference (LAI) technology is ComNav patented advanced anti-narrowband and anti-continuous-wave interference technology. The SNR can reach 60dB and the power consumption is only 0.1W when enabled. LAI technology can quickly detect and mitigate interference through simple setup to ensure the safety of equipment during operation.

In many cases, GNSS and INS are used together to provide a more accurate and reliable navigation solution. This is known as integrated navigation or GNSS/INS integration. ComNav K8-series combines the strengths of both systems, integrated navigation can be robust in challenging environments and provides continuous positioning even during short GNSS outages, here are some examples of K8 GNSS+INS performance in different environments.

The utility of GNSS technology in robotic mowers has emerged as a way to optimize mowing efficiency and accuracy. Historically, robotic mowers operated autonomously by using the local CORS or self built CORS is of high cost and continuous maintenance input. With ComNav Technology’s current robotic mower solution, it is accessible to benefit from reliable high precision service easily and cost saving- with zero operational input and highly integrated design.