A GPS Control/Component by Hillstone Software

HsGpsDll is a Windows Dynamic Link Library which provides access to any NMEA-183 compliant GPS receiver via a serial communications port. HsGpsDll is designed for use from Visual C, Visual Basic or other programming languages, capable of calling DLL functions.

HsGpsDll allows a user application to easily read from a GPS device the current GPS position fix and current velocity over ground (speed in kilometers per hour) plus number of of sattelites in view, current altitude (against mean sea level) and UTC date and time

GPS position fix obtained via HsGpsDll contains:
* Latitude coordinate in degrees, minutes, seconds and direction (South / North)
* Longitude coordinate in degrees, minutes, seconds and direction (East / West)
* Coordinates in decimal degree format
* Fix quality - valid or invalid
* Number of satellites in view
* Speed in kilometers per hour
* Altitude (Mean Sea Level)
* UTC date and time

The demo application shows current GPS location on a map provided over internet connection (if available) from Google Maps map server. The map zoom level is adjustable from 16 to 0. The map is updated every 10 seconds if the coordinates of GPS receiver change.

HOW IT WORKS: HS GPSDLL lcontinuously reads asynchronous data stream from a serial port and analyses the information to recognize and decode NMEA-183 Protocol sentences. After each message is received it is checked for integrity by comparing the received and the calculated checksum. The NMEA sentence fields are then converted from ASCII values into C structure variables and ready to be retrieved with an API call.

What is included In HS GPSDLL:

HS GPSDLL (Standard edition):
* HsGpsDll.dll - Windows DLL (Dynamic Link Library) for use from programs in Visual C, Visual Basic or other languages
* HsGpsDllManual_v1_1.pdf - user programming manual in PDF format
* HsGpsDemoVB6 - Visual Basic test application with source code using HsGpsDll.dll
* HsGpsDemoVC - Visual C test application with source code using HsGpsDll.dll

HS GPSDLL (Blueprint edition):
* Includes everything in Standard edition plus FULL SOURCE CODE in Visual C (plain C style), including core GPS NMEA message processing engine.

Features:
* Interfaces a GPS receiver over COM ports COM1 - COM32
* Allows full configuration of serial port settings
* To obtain GPS information, HsGpsDll decodes the following sentences of NMEA-183 (National Marine Electronics Association, Interface Standard 0183:
* $GPGGA - geographical position fix data
* $GPRMS - minimum recommended fix data
* $GPVTG - velocity over ground

Supported EQUIPMENT:
* Supports any NMEA-183 Compliant GPS device with serial RS232, USB, Bluetooth Wifi or IRDA interface, as long as it is present in the system as a COM port

Applications:
* Navigation
* Security
* Telematics
* Fleet Tracking
* Asset Tracking
* Any customer applications requiring access to a NMEA-183 compliant GPS receiver

Licensing

* Standard Edition * Blueprint Edition