The laying of highways greatly facilitates our daily travel. Relevant departments have installed active safety driving guidance lights on both sides of the highways, allowing drivers to clearly see the direction and outline of the highway in sections with relatively low visibility. The driver's ability to recognize the road surface. In order to solve the problem of synchronous flickering of the induced lights, the GNSS timing module is used to synchronize the clocks of all the control circuits of the induced lights on the road section, so that the induced lights flicker at the same clock beat, thus solving the problem of the synchronization of the flickering of the induced lights. In this article, SKYLAB will briefly introduce the application of GNSS timing module in highway guidance lights.
GNSS timing module
The GNSS timing module supports GPS/BDS/GLONASS not only to provide location information based on latitude and longitude, but also to provide accurate timing services. A GPS clock is a receiver device that accepts low-power radio signals transmitted by GPS satellites and calculates the GPS time. In order to obtain accurate GPS time, the GPS clock must first receive signals from at least 4 GPS satellites and calculate its three-dimensional position. After the specific location has been obtained, the GPS clock can ensure the accuracy of the clock's travel time as long as it receives a GPS satellite signal, which means that even in the case of unfavorable GPS satellite signal conditions or poor sky visibility, accurate timing can be provided . In addition, the module also provides NMEA0183 standard messages to output time and latitude and longitude information through the serial port.
Application of GNSS timing module in highway synchronous guidance light
The synchronous induction light control circuit is mainly composed of single chip microcomputer, GNSS timing module, GNSS timing module power control circuit, illuminance sensor and LED driver circuit. Second pulse, the second pulse signal is input to the external interrupt of the single-chip microcomputer, which is used to synchronize the internal clock of the single-chip computer, so that time synchronization can be achieved.
SKYLAB GNSS Timing Module
GNSS timing module is a series of high-precision timing modules launched by SKYLAB for base station, power, communication and other applications. This series supports GPS/BDS/GLONASS. The enhanced sensitivity and parallel dual-satellite reception expand the coverage and improve the integrity. poor environment.
This series of modules can use auxiliary functions such as EASY and EPO, and can provide excellent positioning performance even under weak signals, which greatly shortens the first positioning time.
Advantages of GNSS Timing Module
GPS/BDS/GLONASS/QZSS同步接收
现有市场领先的捕获和跟踪灵敏度
极高的授时精度30ns
现有市场最高性价比授时模块
GNSS授时模块无其他有线连接，不存在线路故障导致同步失效，系统稳定性强，具有高精度、全天候、全球覆盖和免费使用等特点，除了具有导航、定位等功用，其卫星上的精确原子钟还可实现精确的授时。目前，广泛地应用于需时间控制精度很高的应用领域，如电力、邮电、通讯、交通、航运、气象等场合。更多基于GNSS授时模块的选型应用可直接访问SKYLAB官网或阿里店铺。