User manual HAICOM HI-202E

[. . . ] 58 HI-202E WATERPROOF Ultra High Sensitive USB GPS Receiver 1 General description of what GPS is and how it works. GPS (Global Positioning System) is the only system today able to show you your exact position on the Earth anytime, in any weather, anywhere. GPS satellites, 24 in all, orbit at 11, 000 nautical miles above by the Earth. They are continuously monitored ground stations located worldwide. The satellites transmit signals that can be detected by anyone with a GPS receiver. [. . . ] Satellite-based augmentation systems, such as WAAS and EGNOS, are supported to yield improved accuracy. 6 1. 2 Features · 20 parallel channel GPS receiver · 4000 simultaneous time-frequency search bins · SBAS (WAAS, EGNOS) support · -159dBm tracking sensitivity · < 8 second hot start · < 40 second cold start 7 SECTION 2 RECEIVER OPERATION Upon power up, after initial self-test has completed, the HI-202E will begin satellite acquisition and tracking process. Under normal open-sky condition, position-fix can be achieved within approximately 35 seconds (within 10 seconds if valid ephemeris data is already collected from recent use). After receiver position has been calculated, valid position, velocity and time information are transmitted through the on board serial interface. The receiver uses the latest stored position, satellite data, and current RTC time to achieve rapid GPS signal acquisition and fast TTFF. If the receiver is transported over a large distance across the globe, cold-start automaticlocate sequence is invoked. The first position fix may take up to 50 sec searching the sky for the GPS signal. The acquisition performance can be improved significantly if the host initializes the receiver with a rough estimate of time and user position. 8 As soon as GPS signal is acquired and tracked, the HI-202E will transmit valid navigation information through its serial interface. The navigation data contains following information: · Receiver position in latitude, longitude, and altitude · Receiver velocity · Time · DOP error-magnification factor · GPS signal tracking status The HI-202E will perform 3D navigation when four or more satellites are tracked. When three or fewer satellites are tracked, altitude-hold is enabled using the last computed altitude and 2D navigation mode is entered. With signal blockage or rising and setting of the satellites, where a change in satellite constellation used for position fix occurred, large position error may result. The HI-202E incorporates a proprietary algorithm to compensate the effect of satellite constellation change, and maintains an accurate smooth estimate of the receiver position, velocity, and heading. 9 2. Additional satellite in view information is sent in subsequent GSV messages. Format: $GPGSV, <1>, <2>, <3>, <4>, <5>, <6>, <7>, . . . The new settings will remain effective on next power-on as long as the on-board rechargeable backup battery is not discharged. After the backup battery is discharged, factory preset default settings will be used. 26 TROUBLESHOOTING Problem No Position output but timer is counting Reasons Weak or no GPS signal can be received at the place of HI-202E unit At outdoor space but GPS signal is blocked by building or car roof To try again, go to outdoor and press 'Reset' or connect external antenna on the side of HI-202E to improve the poor GPS signal Can's open COM port The PS/II connector did not insert correctly or some other application is the COM port Can not find HI-202E No signal Poor connection No action for few minites may causes PocketPC into the power saving mode. It could close the COM port at the same time. Weak or no GPS signal when using HI-202E indoor or inside the car. Put HI-202E to an open space or car roof, then, press the Reset button Check HI-202E if Plug firmly Close all applications and exacute it again to re-open the COM port Plug HI-202E connector firmly or close all other application that occupied the COM port Solutions Place the HI-202E under an open space, then, press 'Reset' 27 USB Driver Setup Guide HI-202E USB GPS Receiver 28 A. Introduction of GPS USB Driver Files The USB GPS driver group consists of 6 files. Files Name DRemover98_2K. exe Description of Specific Property Type: Application This execution file removes GPS USB driver from the PC. Serwpl. inf Type: Setup Information This file provides major setup information. Win2K\ser2pl. sys Type: System File This file provides Windows 2000 and Windows XP hardware specific interface. Win98_ME\ser9pl. sys Type: System File This file provides Windows 98 and Windows Millennium hardware specific interface. Win98_ME\serspl. inf Type: Setup Information This file provides Windows 98 and Windows Millennium setup information Win98_ME\serspl. vxd Type: Virtual Device Driver This file is virtual device driver. 29 Figure 1: Screen of GPS USB Driver Group Figure 2: Screen of GPS USB Driver Win 2000 and Win XP System File 30 Figure 3: Screen of GPS USB Driver Win 98 and Win ME Group 31 B. Windows 98 Interface 1. Install GPS USB Driver Before the installation of GPS USB driver, there are three procedures required. The first thing is to turn on PC in the Windows environment. [. . . ] A dialog window shown in Figure-30 will be pop up. Figure 29: GPS USB Driver remove icon Step 2: Click "OK" button Figure 30: Remove Driver Screen Step 3: Click "Yes" button Figure 31: Driver Remove Warning Screen 55 D. Change COM Port Number Application Program If the notebook assigns COM number to COM5, then can to execute SetCOM. exe for COM number change. 56 Step 1: For change COM port number assign by double-clicking the icon show in Figure-32, and then small icon shown in Figure-34 will be pop up. Figure 32: SetCOM. exe Icon Figure 33: Start bar on the right-below corner of screen Figure 34: Start bar on the right-below corner of screen 57 Step 2: by clicking the icon show in Figure-34. a dialog window shown in Figure-35 will be pop up. Figure 35: COM port number change screec 58 Step 3: for example change COM3 become COM4, first Click COM3 and COM4 then Click "Set" button Figure 36: COM port number change screec Step 4: Click "Yes" button Figure 37: Notification Screen 59 E. If your system is Windows Millennium, please refer to Windows 98 installation guide. [. . . ]