For the public of Beidou short messagesMore or less personnelI have already started to come into contact with or heard of RDSS, but I may not be very familiar with the term RDSS, especially for those who are new to Beidou navigation and satellite communication services. I am not very clear about the relationship between RDSS and Beidou short messages. Below is an explanationLet me briefly explainThe relationship between the two.
RDSS stands for Radio Determination Satellite Service, which is a satellite radio service,
RDSS integrates positioning, timing, and communication, enabling single user positioning, timing, and communication, as well as mutual location reporting. RDSS positioning is the distance measurement and position calculation from the user to the satellite that cannot be independently completed by the user themselves, and must be completed by an external system through the user's response. A typical reference is active positioning with Beidou short message.
Beidou short message technology is a unique communication function that belongs to the Beidou satellite navigation system. It adopts the communication principle of RDSS. Beidou short message is just a manifestation of RDSS, which encompasses Beidou short messages.Beidou short message positioning belongs to active positioning, and in some projects, the expression of Beidou short message equipment is also called Beidou active terminal.

Beidou short message is a two-way short text communication between users and between users and the central control system using satellite signals. The Beidou short message communication service not only provides positioning function, allowing the location information of the publisher to be included in the short message, but also has the characteristics of global coverage and all-weather service. Communication experiments show that the communication delay between short point-to-point is between 1 and3Within seconds, it has strong anti-interference ability and can ensure communication even in extreme weather conditions. The current civil Beidou short message communication service covers China and surrounding countries and regions, with the characteristics of low cost, wide coverage, high reliability, and instant access. It can effectively supplement the ground mobile communication network. In the coverage area of the Beidou navigation satellite system (currently achieving global coverage), areas without ground base station signals can be communicated and remotely monitored and data collected through Beidou short message communication equipment.
The application of Beidou short message function has been going through many years, including Beidou-1 short message, Beidou-2 short message, and Beidou-3 short message. In July 2020, the Beidou-3 satellite navigation system was successfully networked, and in 2021, Beidou-3 short message terminal devices were gradually launched in the market. As of now, mainstream Beidou-3 short message applications and corresponding devices in the market have begun to use the Beidou-3 short message standard. Due to the fact that most of these devices are used in special industry applications, the general public rarely comes into contact with their existence and knows their benefits in daily life. In September 2022, Huawei released the Mate50 series of mobile phones and proposed the "Piercing the Sky" support for Beidou satellite communication function, which further enhanced the public's understanding and recognition of Beidou short message function. Especially for outdoor enthusiasts, field workers, and explorers, it is a blessing. It can solve communication problems in environments without base station coverage or mobile communication signals. It can communicate with the outside world in real-time, send distress signals, and report its location. At this point, the Beidou short message communication function becomes particularly important. For example, in the frequent occurrence of natural disasters, traffic accidents and other emergencies, Beidou short messages, as a satellite communication method to compensate for the lack of signals in public network base stations, have high reliability and application value. Especially in the case of mobile communication interruption, power interruption, or ground base station coverage failure in disaster areas, short messages can be used for communication, positioning, etc. through Beidou short message terminals. Nowadays, multiple products that support short message functionality have been launched in the market, such as the Beidou-3 short message handheld device, Beidou-3 short message tablet, Beidou-3 data transmission terminal, Beidou-3 short message watch, Beidou Bluetooth box, and Beidou command machine.

The functions and terminal application fields of Beidou short message are very extensive, including but not limited to livelihood security, emergency disaster relief and reduction, field search and rescue, geological survey, mining survey, remote voice command and dispatch, maritime operations, aerial flight, border patrol, individual intercom, anti-terrorism security, disaster relief, confidential communication, field operations, field exploration, ocean navigation and fishery, transportation, engineering construction, power dispatching, agricultural meteorology, aerospace, railway, public security, geological disaster monitoring and early warning, hydrological and water conservancy monitoring, forestry patrol, nuclear industry, oil and gas energy system and other industry fields. In addition, Beidou short messages can also be applied to large-scale applications of the Internet of Things (such as data collection and reporting in special industries).

  The Beidou Satellite Navigation System is a global satellite navigation system independently developed by China. It can provide high-precision, highly reliable positioning, navigation, and timing services to various users around the world, 24/7, and has short message communication capabilities. It has regional and global navigation, positioning, and timing capabilities. With the continuous advancement of technology and the expansion of application scenarios, the application fields of Beidou system and Beidou short message function will be further expanded, providing more comprehensive and efficient services for economic and social development.

Shenzhen Huilingxing Technology Co., Ltd. is an innovative software and hardware solution provider specializing in "integrating communication with communication, integrating positioning and navigation, integrating IoT with design". The company's mission is to "integrate communication, integrating navigation, and integrating positioning", and its vision is to "intelligently create seamless communication ecological chains and build the Internet of Things for communication between heaven and earth". Focusing on 4G/5G communication, Beidou/Tiantong/low orbit satellite communication, localization of software and hardware, high-precision positioning and navigation services, three defense reinforcement design, and customized modular functions. The company has a team of senior industry experts and experienced engineers, and is the pioneer in developing the Beidou-3 short message satellite communication solution in China. We provide product development, design, and production services for multiple domestic military central enterprises and institutions. Provide precise and targeted intelligent satellite communication terminal equipment and solutions for industry users.

The company provides one-stop product solutions and system services from ID design, structural design, motherboard embedded software and hardware development, whole machine assembly production, APK and SAAS cloud platform development, etc. Develop and provide various industry products for users, including Beidou short message communication series terminals, Tiantong/Iridium satellite phones, three proof handheld terminals, RTK high-precision positioning communication terminals, reinforced laptops, intercom handheld devices, handheld law enforcement terminals, and data transmission terminals. We will continue to strive to further enhance our independent innovation capabilities, based on cutting-edge market demands, and strive to provide more high-quality products and system solutions for various industries.