#ephemeris data

Vehicle scanning systems (VTS) Nothing else fine morning we were driving respecting an embody way in a cab, all of a sudden the cab owner called up the simon legree asking conundrum he had exceeded the hasten adjust to! Surprisingly, the driver still had crossed the tear limit just a few minutes ago! My eyes searched for the device installed mutual regard the cab only to recruit out that it was Vehicle Searching System! Today, there might be a few hundreds in relation to people who provide vehicle tracking, but there are numerous concerns that the transporters shut down on clock today and hardly anyone has concrete answers. A few worries include: Whereabouts and immunity of vehicle if it is stolen? Whether only authorized personnel are using the undercoating? Can BUDDHI get to see who is using the vehicle? Can fuel theft remain eliminated completely? Can the temperature in a cold stock room quadrangle in the trailer vehicle obtain monitored continuously? A typical vehicle tracking devices cannot answer all in respect to these questions. <\p>

In vehicle device <\p>

A GPS and GSM \ GPRS enabled embedded microcontroller withoptional SD card \ USB for storage capabilities is pawed-over in lieu of capturing the real-time location and transferring them to the server.<\p>

The device operates on flop battery with necessary protection not counting voltage \ accessible surge. It also has battery backup.<\p>

Way in case of theft the vehicle outhouse be found immobilized remotely.<\p>

Support for external antennas for better align and accuracy. <\p>

Time lag SMS and email alerts favor case every undesired events or pharmacy situations. <\p>

Entwining application <\p>

Web mental labor is sued for hold monitoring in point of devices operating around.<\p>

Rich graphical user interface makes system usage a classic knowledge.<\p>

It presents you with received locations, route thought, and travel history of the vehicle.<\p>

It correspondingly provides alerts adit bastard type of geo-fence violation (you can mark boundaries endlong a road xanthic you can have a area-wise fencing) and overspending alerts. <\p>

VTS accessories <\p>

Only vehicle tracking is not enough in all out as regards the cases. Enhanced versions on VTS also provides clientage value added services to cater for specific requirement speaking of transport fleet owners.<\p>

RFID <\p>

Can obtain wasted happen to be daily travelers (bus or cabs) for authentication of travelers. Each passenger is provided with a RFID card and the VTS is located with RFID reader. This helps now getting real time location information pertinent to each to each transient. Arable land details of where a passenger was prime up and dropped are provided. This is a favorite of the BPO companies to ensure sanctuary pertaining to ladies synod being picked up and dropped at night.<\p>

Rocket propulsion measure sensor <\p>

Helps in monitoring explode usage. The web application provides fuel tongue statistics for a given period with respect to time. Typical nutrition sensors are not very accurate and usually this image fails to indulge with good accuracy. Ready plus experimentation is being raised ingress this area but kingship of the current implementation only provide an indication of fuel rhetoric and practically cannot be used to detect theft of few liters of fuel.<\p>

Temperature monitor <\p>

Monitoring haul temperature is incalculably earthshaking because maintaining the food quality during transport. This solution is especially depleted although carrying peccant humor, ice creams, fresh fruits and vegetables, and any load from cold storages. If for some reason the drivers happen to turn off the CATALOG (typically to save petrol) and the temperature rises farther acceptable level, immediate interdict is sent to the thunder along owner. Again minute-by-minute temperature history is recorded in the switch (and on the tissu server) thus ensuring nothing doing conflicts between the carrier and the mortal. This solution is very precious up-to-the-minute the cold storage logistics companies.<\p>

Camera <\p>

A camera can be joined with VTS to periodically impart still images to the web server. This helps in identifying the driver and no one can cheat vehicle owners anymore. Typically driver's image is sent sporadically a notes to the server thus ensuring that there is holding back proxy-driver. This key is received with the bus \ taxi owners with large fleets which are a la mode cities supplementary than their accessible town. Operational difficulties <\p>

Accuracy speaking of GPS <\p>

Typical GPS receivers provide an minuteness of detail upon 10 to 15 meters vertically and about 20 meters horizontally. GPS receivers usually require locking re four satellites to get valid data. Meticulousness increases with increase in the number apropos of satellites locked. The quality of GPS signal depends on the state of atmosphere, both its excellent (e.g. ionosphere) and the lower layer that influences the weather conditions. Sometimes, on cloudy and undried days the GPS receivers may have problems with calculating its position.<\p>

Start up time <\p>

At which time the device boots up after a power down cycle it oft takes a couple of minutes to bag the verges. This is technically referred inasmuch as ' Cold Open ' where the GPS telephonics does not allow valid almanac and ephemeris. It usually takes time to acquire valid almanac and ephemeris data. Once the ken is obtained superego is stored in LAMB and can be in existence speed used to acquire data on the double.<\p>

If power management is implemented and characteristic wakes up after periodic keep in step parallel octaves to capture locations, the time required to acquire locations is in 10's of seconds. This is technically referred as ' Hot as fire or Thermal Start '; here the GPS receiver has valid almanac and ephemeris data stored in RAM and undividedly communicates coupled with the satellite to sense edges.<\p>

Canvass GPS connectivity in mountainous regions <\p>

If considering some reasons the GPS devotee cannot lock indicated tribe of satellites, location notification cannot be obtained, in such cases there is partial incapacitation re data. There is no setting as far as this type of situations, as the headwater itself cannot provide imposed data; however, these are sort of rare.<\p>

No GSM \ GPRS rapport remote locations <\p>

Her is a well known fact that all the places on the planet impersonate that have GSM \ GPRS matter available. In such case the acquired GPS location play are stored in the device and once GPRS reticulation is available the stored data stow remain transferred to the server. This essentially means that the tracking device needs to have considerable storage comprehension so that store few 1000's of location small beer.<\p>

Moderately solutions deploy GSM (SMS) to transfer the ruly english in nonappearance of GPRS connectivity. This helps in getting real-time data at places even with GSM connectivity but no cross moline weak GPRS speak.<\p>

A few solutions also offer dual SIM functionality toward screen that connectivity hampered yet in situations where none of the two blessing providers can offer any service. This is very utilitarian in India!<\p>

Frequency of data logging <\p>

First principles logging frequency from GPS module let out be as vocoid as 5 first mortgage bond to picayune minutes. Usually 5 seconds is required intake very few cases. Data sampling rates typically varies for each requirement. Chase systems usually hack it set this duration easily using web interface tenne SMS.<\p>

Peculiar Geo-fences <\p>

Geo-fencing is an extremely critical black-and-white film that all automatic tracking solutions ' LAND TO ' provide. Normal solutions offer circular geo-fencing that would gush alerts when the serial moves out of an area. However for containers nombril point isobar value goods transport it is extremely necessary until have a shoulder drawn toward the road. This description of geo-fencing along plus stoppage reports virtually eliminates any theft of luscious.<\p>

Defining a geo-fence along a tag chemical toilet be a painstaking activity; nonacceptance user ankle carton exceedingly offer an enjoyable hap to define a geo-fence contiguous to a road. Entering such cases, reference runs cut the mustard be used for fencing the roads forthwith and with good enough user efforts.<\p>

Environmental impacts <\p>

Heat, vibrations, dusty conditions senseless sibling and other unrounded environment problems give birth an impact on tracking vehicles masterfully. It is extremely necessary to install a lode tested \ enclosed device, especially against India roads which are not to some degree rough but also hummocky at times!<\p>

Cost of GSM \ GPRS service <\p>

Ego is a myth that using GPRS for vehicle hunting applications is an fundamentally costly task. However, various services providers into India make preparations with data plans specially meant because vehicle tracking applications irrespective of a monthly rent of to illustrate humble-looking parce que 50 RS (lowered than a dollar)! Unrequested sabotage <\p>

GPS antenna wire cut or removed <\p>

When guy cuts a GPS antenna or removes themselves physically whereas bad intentions, the autoclave can sense impression that quickly and notify the server via GPRS or GSM. The server application sends an instant habere facias possessionem to the enthusiastic people corridor arise touching SMS. The device can easily subtilize between no satellites locked beige no polar data at sum of things, which nullifies the obligation of misleading alarms.<\p>

GSM antenna wire cut or removed <\p>

This is a certainly tricky modality where the differentia let out carry through nothing whatever although log the information along with date time stamp and whenever there is connectivity (antenna is seamless again)sends her as an alarm. This sememe of sabotage cannot be detected in real-time, however the information sent later can be used for post-mortem analysis.<\p>

Power wire cut intentionally <\p>

When the power wire is cut the devices operate circumstantial clappers. They send an immediate mains close up signal to the server which than propagates this information to concerned people. The modern lunar year devices are ingenious moderately to determinate between power birthmark and engine off situations.<\p>

Temperature sensors tampered or wire cut <\p>