Thursday, June 27, 2013

GPS Vehicle Tracker’s advanced technology

Generation of logistics development of the vehicle, the ship transport form a breakthrough, in the first place. Temporary, since the running vehicle because of the dispersed flow, information communication is difficult, work condition is complicated, has been a transportation enterprise management difficulties, if using satellite positioning technology, computer network technology, GIS, GSM communication technology to ensure the accuracy of the transportation scheduling, and then integrated satellite data can be know the location of the receiver.
GPS Vehicle tracker XT-009

To achieve this purpose, the position of the satellite can record according to the spaceborne clock time found in the satellite ephemeris. While the user is the distance to the satellite transmitted to the user experiences by recording the satellite's signal, multiplied by the speed of light to get it again (because of the atmosphere, the ionosphere disturbance, GPS tracker, this distance is not the real distance between user and satellite, but the pseudorange (PR) : when GPS satellite work normally, will continue to use the binary 1 s and 0 s element consisting of pseudo-random code (pn code) launch navigation message.


GPS vehicle tracker system using the pseudo code of A total of two kinds, respectively is civil C/A code and P (Y) code for the military. C/A code frequency 1.023 MHz, repeat cycle is A millisecond, code spacing of 1 millisecond, equivalent to 300 m; P code frequency 10.23 MHz and 266.4 days, repeat cycle code spacing 0.1 microseconds, equivalent to 30 m. And Y code is on the basis of P code, secrecy performance is better. Navigation message includes satellite ephemeris, working conditions, and clock correction, ionospheric delay correction, correction of atmospheric refraction and other information. It came from a satellite signal demodulation to 50 b/s on the carrier frequency modulation launch. Navigation message contains five child frame each main frame of the frame length 6 s. The first three frames each ten word; Repeat every 30 seconds, updated every hour

Monday, June 10, 2013

GPS Tracker how to regulate “private use of government vehicles”

Bus management is a problem, governance“private use of government vehicles”must first be defined with a no. In this sense, to give Bus Bus GPS positioning and installing GPS Tracker is undoubtedly in the right direction, it does play a certain deterrent.
 
GPS Vehicle Tracker TK103-2
“private use of government vehicles”fundamentally speaking, is a waste of taxpayers' money, blocking traffic, destruction of the party and the government's image. Over time it will breed corruption, fueling privileges. For government departments“private use of government vehicles”phenomenon, U.S. forces launched a series of high-car GPS positioning system, specifically:

1, real-time query position;
2, time tracking, fixed pitch tracking;
3, Monitor function or two-way conversation (optional);
4, SOS emergency alarm;
5, GPS blind area alarm;
6, speed alarm, collision alarm, trailer alarm;
7, GPS antenna cut off the alarm;
8, Remote off oil, electricity, etc.
Bus to install GPS vehicle Tracker, people on the bus and use real-time vehicle tracking, historical trajectory queries. The bus uses whereabouts exposed to within sight of the regulatory authorities, to curb “private use of government vehicles” have some positive effect.
XeXun GPS vehicle positioning system car management for enterprise benefits:
1. Cost: eliminate the driver casually reimbursed fuel costs, etc., causing a huge waste of “private use of government vehicles”;
2. Increase customer satisfaction: Customer can be found the true location of goods, to understand the exact time of arrival;
3. Improve vehicle efficiency and the use of regulatory efficiency: the closest distance calls in a timely manner, the most appropriate vehicle loading and unloading cargo, reducing the load of the vehicle, to avoid the idle stop or distance traveled and other conditions, greatly improve vehicle utilization;
4. Security: strong to prevent outsiders from the driver or vehicle or cargo theft hijacking.