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10

SECTION 2

RECEIVER OPERATION

Upon  power  up,  after  initial  self-test  has  completed,  the 

HI-204E  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  automatic-

locate  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.

Содержание HI-204E

Страница 1: ...User Manual HI 204E Mini DIN GPS Receiver HI 204E Mini DIN GPS Receiver...

Страница 2: ...1 HI 204E WATERPROOF GPS Receiver HI 204E WATERPROOF GPS Receiver...

Страница 3: ...g the receiver you can determine your location with great precision The satellites are positioned so that we can receive signals from six of them nearly 100 percent of the time at any point on Earth Y...

Страница 4: ...ctions on who can use the signal available to civilians GPS technology can be used in a variety of fields besides providing navigation for vehicles on the sea in the air and on the ground GPS applicat...

Страница 5: ...or Color Function CN1 Green TX 5 White RX 4 Red VCC 2 Black GND 1 1 3 5 2 4 6 1 1 2 2 1800 30mm GLOBAL POSITIONING SYSTEM HI 204E GPS RECEIVER Pin Assignment Connectors Mini Din 6 pin male connector W...

Страница 6: ...from the female Connector is 12V car charger charging PDA and GPS receiver simultaneously the other end form the female PS II connector is the PDA connector for connecting your PDA For notebook PC us...

Страница 7: ...r car navigation personal navigation or touring devices tracking and marine navigation purpose Users can simply plug it into a PDA or other type of handheld PC running with suitable mapping and routin...

Страница 8: ...7 Optional Accessories PS II to PDA connector and car charger PS II to DB9 adapting cable PS II to USB adapting cable HI 204E XXXX Pocket PC Plug HI 204E DB9 HI 204E USB...

Страница 9: ...nd provides accurate satellite positioning data The HI 204E is optimized for applications requiring good performance low cost and maximum flexibility suitable for a wide range of OEM configurations in...

Страница 10: ...l serial interface are provided on the interface connector Supply voltage of 3 3V or 3 8V 12V are supported 1 2 Features 12 parallel channel GPS receiver 4000 simultaneous time frequency search bins S...

Страница 11: ...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 sign...

Страница 12: ...avigation 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 bl...

Страница 13: ...lel channel L1 C A code Position 5m CEP Velocity 0 1m sec 10sec hot start 35sec warm start 45sec cold start 1s 137dBm acquisition 145dBm tracking 1Hz 4G 39 2m sec2 Altitude 18 000m or velocity 515m s...

Страница 14: ...ECTION 3 HARDWARE INTERFACE 3 1 MECHANICAL DIMENSIONS 73 0 2 I O Cable I O Cable I O Cable Build in patch antenna LED indicator Magnetic CPU Top View Lateral View Bottom View 69 0 2 20 0 2 69 0 2 Unit...

Страница 15: ...Power Ground Description Asynchronous serial output at LVTTL level to output NMEA message Asynchronous serial input at LVTTL level to input command message Asynchronous serial output at RS 232 level t...

Страница 16: ...s generated when the GPS receiver is powered on Proper adjustment of the 1PPS output to align with the GPS second requires calculation of the receiver clock offset and clock drift rate as part of the...

Страница 17: ...valid position fix the 1PPS output will drift away from the GPS second and the 1PPS Valid Signal will become inactive Upon re acquiring enough satellites to generate consecutive valid position fixes...

Страница 18: ...for commands and data to be successfully transmitted and received The default receiver protocol is 4800baud 8 data bits 1 stop bit and none parity 4 1 NMEA OUTPUT MESSAGE SPECIFICATION The HI 204E sup...

Страница 19: ...This standard is fully define in NMEA 0183 Version 3 01 The standard may be obtained from NMEA www nmea org 4 1 2 GGA GPS FIX DATA Time position and position fix related data number of satellites in u...

Страница 20: ...re indicator N North S South Longitude in dddmm mmmm format Leading zeros transmitted Longitude hemisphere indicator E East W West Position fix quality indicator 0 position fix unavailable 1 valid pos...

Страница 21: ...8 Example 2447 2073 N 12100 5022 E 104548 04 A A 65 Description Latitude in ddmm mmmm format Leading zeros transmitted Latitude hemisphere indicator N North S South Longitude in dddmm mmmm format Lead...

Страница 22: ...6 21 09 17 10 8 02 1 10 6 07 CR LF Field 1 2 3 4 5 6 7 Example A 3 26 21 09 17 10 8 02 1 10 6 07 Description Mode M Manual A Automatic Fix type 1 not available 2 2D fix 3 3D fix PRN number 01 to 32 of...

Страница 23: ...PGSV 2 1 08 26 50 016 40 09 50 173 39 21 43 316 38 17 41 144 42 7C CR LF GPGSV 2 2 08 29 38 029 37 10 27 082 32 18 22 309 24 24 09 145 7B CR LF Field 1 2 3 4 5 6 7 8 Example 2 1 08 26 50 016 40 7C Des...

Страница 24: ...in hhmmss ss format 000000 00 235959 99 Status V navigation receiver warning A valid position Latitude in dddmm mmmm format Leading zeros transmitted Latitude hemisphere indicator N North S South Long...

Страница 25: ...221 0 T 224 3 M 016 0 N 0029 6 K A 1F CR LF Field 1 2 3 4 5 6 Example 221 0 224 3 016 0 0029 6 A 1F Description True course over ground 000 0 359 9 degrees Magnetic course over ground 000 0 359 9 deg...

Страница 26: ...ocol User s Guide for detailed descriptions Field 1 2 3 4 5 6 7 Example 104548 04 25 03 2004 6C Description UTC time in hhmmss ss format 000000 00 235959 99 UTC time day 01 31 UTC time month 01 12 UTC...

Страница 27: ...ERISTICS 42 0 31 5 25 0 35 0 3 0 0 2 0 2 4 0 25 0 17 0 5 5 36 1 5 0 6 0 1 5 1 0 14 8 1 3 2 0 3 9 11 0 4 0 1 0 5 0 9 5 5 5 41 6 42 6 41 1 0 7 2 2 5 6 5 6 0 7 41 1 1 3 1 4 12 7 13 5 12 7 11 5 RF Board D...

Страница 28: ...I 204E to change the settings of the receiver 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...

Страница 29: ...or mapping software You can use the PDA smart menu s setting function to see wether the CPU type is correct or not Can s open COM port The PS II connector did not insert correctly or some other appli...

Страница 30: ...WATERPROOF GPS Receiver WATERPROOF GPS Receiver...

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