source:truck tracking webfleet solutions release time:2022-11-11 Hits: Popular:realtime gps tracker online

The whole acquisition system is scattered in various parts of the bridge. The bridge is divided into several sections according to the region. In the main sections, signal collector stations are placed. Each collector station is several kilometers or even more than ten kilometers away. Each group of collector stations is connected to the GPS synchronous clock receiver. The GPS PPS receiver receives the GPS clock synchronization signal, performs corresponding processing to obtain the clock synchronization signal and absolute time stamp, and sends them to the PXI acquisition equipment. The acquisition equipment receives the processed GPS synchronization signal, Achieve synchronization of the entire distributed acquisition system.
The clock synchronization here has two meanings:
The synchronization of data sampling frequency includes pulse synchronization and phase synchronization of sampling clock signal.
Synchronization on the timeline, that is, the synchronization of the time stamp at the sampling point.
Only when both aspects are synchronized can it be called a real synchronous acquisition.
At present, in addition to the GPS PPS clock synchronization technology scheme, there are two other clock synchronization technology schemes:
1. Chassis direct connection clock synchronization technology:
The clock frequency sharing technology of PXI-6653 clock synchronization module is mainly adopted. Each acquisition device is equipped with PXI 6653 clock synchronization module, and then the 6653 modules of each acquisition device are connected with coaxial cables, with one module as the master module and the rest as the slave modules; The clock signal inside the master module synchronizes the clock signal inside the slave module through the coaxial cable. The PXI-4472B uses the secondary signal as the sampling clock. The network time server can be used for timestamp synchronization.
2. GPS IRIG-B clock synchronization technology:
This technology is very similar to the GPS PPS technology. Both receive the GPS synchronization signal through the GPS receiver, do the corresponding processing and send it to the acquisition equipment for acquisition synchronization. The difference between this technology and the GPS PPS is that the IRIG-B clock synchronization signal contains absolute time, so PXI-6608 needs to receive this signal and parse it into a usable timestamp.
Read recommendations:
Type of GPS data format and extraction of positioning information
Last article:Composition of GPS PXI acquisition equipment system
Next article:Structure of GPS antenna
Related Information
Car gps tracking wholesaler
2023-04-23Gps speed limiter manufacture
2023-04-23Cantrack TK100
2023-04-23fleet gps tracking wholesaler
2023-04-23gps tracker for bike supplier
2023-04-23gps tracker for bike Factory
2023-04-23fleet management software webfleet solutions
2023-03-16portable gps tracker distributors
2023-03-16Dog gps tracker Processing
2023-04-23Pet GPS Tracker distributors
2023-03-16G200(L) -Magnet GPS Tracker
2022-06-20P60L Personal gps tracker
2025-07-11TK100N- Multi functional GPS Tracker
2023-10-06G06L
2022-06-21TK08AL- RFID Car GPS Tracker
2023-10-07What are the emphasis on the installation of the GPS positioner?rastreador de GPS wholesaler
2023-03-16What are the precautions for installing the car GPS positioner
2023-02-25Type of GPS data format and extraction of positioning information
2022-11-24What is a satellite trajectory?
2022-10-28Introduce the principle of Beidou positioning.plug & play Obd gps tracker Vendor
2023-05-12Application of GPS Locator in Logistics Management
2022-12-08About GPS receiver
2022-12-05GPS positioning principle
2022-10-14Main Errors and Elimination Algorithms in GPS Positioning
2022-09-06GPS precautions.portable gps tracker supplier
2023-06-28Current Development of GPS.GPS Tracking
2023-09-08The editor tells everyone where car GPS is usually installed.obd-II port gps tracker sales
2023-06-16gps vehicle tracker.What is the price of a vehicle GPS locator
2023-11-09Buses equipped with GPS for private use should be held accountable
2022-08-11The car GPS positioner plug -in card is still free of card.van tracker webfleet solutions
2023-03-14