In the late 20th century, China began to explore the development path of the satellite navigation system suited to the national conditions, and gradually formed the strategy of"three-step" development strategy.
One other technology being developed in the European market is the eCall, system to call emergency service automatically through the use of satellite positioning system(GNSS: global navigation satellite systems) when an accident occurs.
Using receivers with multiple frequencies via the satellite positioning service resolves ionospheric errors, which makes high-precision positioning possible at an accuracy of several dozens of centimeters.
GPS is a satellite positioning system operated by the United States, but its origin was Sputnik 1, the first artificial satellite launched by the Soviet Union on October 4, 1957.
Satellite positioning system: control of the bus location, run abnormal automatic alarm Currently, most buses in Kunming has actually installed a satellite positioning system, but did not network management.
He introduced examples of applications in fields such as road traffic, agriculture, distribution, and civil engineering, saying,“Nations are making proactive efforts based on the awareness that satellite positioning technologies are the foundation of next-generation industry, including the Internet of Things(IoT)”.
In recent years, the European Union(with Galileo) and China(with BeiDou) have also been establishing and operating their own satellite positioning systems, with both scheduled to go into full operation in 2020 with 30 satellites each.
For satellite positioning function parameters measured Car DVR/ NVR supports high-precision GPS or Big Dipper positioning, mobile vehicle satellite positioning, remote control, and can achieve positioning information display, coding overlay and video recording.
Today's GPS systems are accurate to within 10 meters. Replacing those systems with high-precision positioning technology that improves accuracy to a few centimeters would enable autonomous vehicles to determine their current road lane using only satellite positioning.
Outline of Hitachi Zosen satellite positioning business and basis for development For over 30 years, Hitachi Zosen has offered high-precision satellite positioning technology and services with the hope of equipping society for the advanced use of satellite positioning and geospatial data.
To cite examples, satellite positioning systems enabled a number of services based on positional information, such as car navigation and smartphone services, which brought greater convenience to our lives. We became able to watch athletic and other events staged on the other side of the earth on a real-time basis thanks to communications satellites..
Passenger transport In passenger transport industry, besides the basic surveillance functions, there is also SD card supported School Bus Mobile DVR(in order to capture real-time conditions inside and outside the vehicle), vehicle travel information records, vehicle scheduling, GPS satellite positioning and vehicle voice reporting stations.
Fourth, application and development of the future direction As the vehicle moves, the user of the vehicle remote video surveillance, vehicle GPS Beidou satellite positioning, as well as the needs of the host and scheduling data exchange platform is particularly urgent.
GPS global satellite positioning system, now almost all mobile phones are equipped with this feature, and in the car navigation system is also often able to see, for the field travel, travel and"Luchi", the GPS can be called" Human savior", to our lives has brought great help and convenience.
Car DVR inherited the development direction of network technology, embedded DVR Intelligent Car DVR products, also should have GPS satellite positioning and other functions in accordance with the traffic industry custom function. But for the DVR, the first thing to do is to narrow the dynamic voltage and current.
GPS衛星測位,ローカルビデオ監視の両方,
GPS satellite positioning, both for local video surveillance,
Mobile DVR combines digital video and audio codec, harsh environment high-capacity data storage hard drives, automotive electronics, wireless video network transmission, GPS satellite positioning and other advanced technologies, to achieve the passenger transport industry, specialty vehicles industry and other related fields of video and audio surveillance.
Can synchronize audio and video recording, Wi-Fi network ports can add modules to enable wireless transmission of audio and video, as well as set aside RS232 interface on the host, you can add GPS satellite positioning module or products, give full consideration to the needs of the user's extension.
Information Center of China National Tourism Administration of the two national standards for the field of tourism information reporting, the Ministry of Science and the modern service industry specific, the development of geographic information practices of tourism, tourism, remote sensing information practices, tourism satellite positioning information practices and many other industry standards.
A passenger industry custom function analysis Passenger demand for automotive industry in addition to the simple DVR car video surveillance functions, but also need a wireless network video surveillance(real-time in order to understand the situation inside and outside the car), GPS satellite positioning, vehicle scheduling, vehicle Voice newspaper stand, vehicle information record, multimedia entertainment advertising and other functions.
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