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:
G900LS 8 Lines-4G Car GPS Tracker
The correct method of using the car GPS positioning system shallow analysis.realtime gps tracker onl
The car GPS positioner plug -in card is still free of card.van tracker webfleet solutions
Last article:Composition of GPS PXI acquisition equipment system
Next article:Structure of GPS antenna
Related Information
Gps speed limiter equipment
2023-04-23gps tracker device
2023-04-11van tracker webfleet solutions
2023-03-16Cantrack TK100
2023-04-23pet gps tracker cat wholesaler
2023-03-16fleet gps tracking price
2023-04-23car gps tracker manufacture
2023-04-234G GPS Tracker for vehicles distributors
2023-04-23OBD GPS Tracker
2023-03-16car gps tracker Solution
2023-04-23G08L - 4inch Smart Tail Light Tracker
2022-06-20G06L
2022-06-213 Years Disposable Asset GPS Tracker
2025-03-31G183 serials -JOBD GPS Tracker
2022-09-06G900LS 8 Lines-4G Car GPS Tracker
2025-03-31The principle of GPS is introduced to you
2022-11-19Do you know the working principle of the pet GPS positioner?realtime gps tracker online wholesaler
2023-03-10What are GPS satellite tracks?
2022-10-26The characteristics and composition of the car GPS positioner.mileage tracking webfleet solutions
2023-03-08What should I do if the car GPS positioner does not respond for a long time?realtime gps tracker onl
2023-03-24GPS Plan implementation plan
2022-10-12gps vehicle tracker.Job responsibilities of GPS car positioning management computer operators
2023-10-12Does the GPS positioner help the battery car anti -theft?vehicle gps tracker webfleet solutions
2023-03-08GPS category
2022-12-01Calibration method for Beidou/GPS fuel sensor of large trucks.gps vehicle tracker
2023-09-18A-GPS scheme is favored.gps tracker with magnet Processing
2023-05-23The development history of GPS
2022-08-12Everyone knows about gps trackers, but what is LBS?
2022-09-15Guidelines for purchasing mortgaged cars - Use of GPS anti-theft devices.personal gps tracker wholes
2023-09-12Do not illegally install GPS trackers
2022-09-14