Blogs
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Wireless Transmission of NMEA 0183 Messages from GNSS ReceiversNMEA 0183 is the abbreviation of the National Marine Electronics Association, which is now the unified standard protocol for GNSS navigation devices. There are general statements and special statements in NMEA protocol. Common statements include GGA, GSA, GSV, RMC, VTG, GLL, and so on.LEARN MORE
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What is the principle of dual-antenna heading and what is its accuracy?With the continuous development of satellite navigation systems, satellite positioning and heading technology has become very mature. Dual-antenna heading has the advantages of high precision, simple structure, cost-effectiveness. It can be widely used in agricultural machinery navigation, unmanned driving, intelligent robot control, drones, unmanned ships, and many other fields. So how does the dual antenna perform heading? What is the accuracy of heading performance? Let's learn about it together.LEARN MORE
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ComNav's A300: Revolutionizing Deformation Monitoring for Critical InfrastructuresIn the realm of deformation monitoring, where precision and efficiency are paramount, ComNav's A300 emerges as a formidable solution. This monitoring beast is designed to address the complexities of high-value and critical areas such as dams, mine-pits, and underground tunnels. With a compact design that integrates the receiver and antenna into one unit, the A300 not only streamlines the monitoring process but also minimizes the risk associated with multiple devices spread across delicate sites. This article explores the key advantages of the A300 and its transformative impact on deformation monitoring.LEARN MORE
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How to Update Firmware of K8 GNSS ReceiverWith 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.LEARN MORE
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Advancements in Positioning Systems: Integration of Laser Pointing Technology with GNSS ReceiversThe 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.LEARN MORE
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Triple frequency or dual frequency?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.LEARN MORE
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Galileo High Accuracy Service (HAS) Performance Analysis ReportPrecise 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.LEARN MORE
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ComNav's P6H Pocket Tablet: Revolutionizing GIS Mapping with Precision and InnovationComNav, 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.LEARN MORE
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Alert on Strong Geomagnetic Storming and How Lonospheric Activity Impact on GNSS PerformanceThe 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.LEARN MORE
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Galileo's High Accuracy Service (HAS): Unlocking the Potential of Positioning, Navigation, and Timing (PNT) in Africa and Lessons for Global ConstellationsGalileo, 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.LEARN MORE
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Logging Raw Observation Data for GNSS DevicesThis 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.LEARN MORE
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Precision Meets Efficiency: The LS300 Laser Scanner Delivers Rapid and High-Quality Data in Rigorous TestIn 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.LEARN MORE
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How to active PPP option for GNSS modules/receivers in your handSinoGNSS 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.LEARN MORE
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How to active the Event option for your GNSS moduleEvent 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.LEARN MORE
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Revolutionizing Lawn Mowing with ComNav GNSS: Evolution and Societal ImpactInnovation 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.LEARN MORE
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Challenges of GNSS Positioning Along the Equator and Mitigation Strategies for UsersGlobal 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.LEARN MORE
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Introducing the New 'appscene' Command for K8-series ModuleComNav 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.LEARN MORE
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Recommend commands for system integrationAs 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.LEARN MORE
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Data link module introduction and configuration step by stepIn 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.LEARN MORE
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The Magic Behind RTK: Delivering Unparalleled Positioning PrecisionIn 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?LEARN MORE
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Static observation (2)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.LEARN MORE
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Static observation (1)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.LEARN MORE
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Instructions for use of PPSPPS 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.LEARN MORE
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Description of Common CommandsUpon 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.LEARN MORE
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Command Introduction: “log sysconfig”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.LEARN MORE
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DP-filter Smooth Technology: Pass to Pass Solution for Agricultural Guidance SystemsGNSS 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.LEARN MORE
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'Interfacemode' Command: Optimizing K8 GNSS Module ConfigurationIn 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.LEARN MORE
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NMEA Message IntroductionNMEATALKER (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.LEARN MORE
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Explanation Of Commonly Used Registration OptionsHow 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.LEARN MORE
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CRU software instructionCompass 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);LEARN MORE