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GPS-22 Operating Manual

                    

Rikaline

 

                                                    

Specifications subject to change without prior notice 

Rikaline

 International Corp.

    14F

, 171, ChengGong Rd., Sanchong City, Taipei 241, Taiwan, R. O.C  

Tel: ++886 2 8973-1899 Fax: ++886 2 8973-1896   E-Mail: [email protected] web: www.rikaline.com.tw 

 

 

1. Introduction 

 

1.1   Overview 

The 

Rikaline 

GPS-22 GPS Receiver is a GPS receiver featuring the revolutionary 

FirstGPS™ 

architecture. This complete enabled GPS receiver module provides high position and speed accuracy 
performances as well as high sensitivity and tracking capabilities in urban canyon conditions. The solution 
enables small form factor package. The GPS-22 delivers major advancements in GPS performances, 
accuracy, integration, computing power and flexibility. It is designed to simplify the embedded system 
integration process

.

 

 
This positioning application meets strict needs such as car navigation, mapping, surveying, agriculture and 
so on. Only clear view of sky and certain power supply are necessary to the unit. GPS-22 communicates 
with other electronic utilities via compatible dual-channel through TTL and saves critical satellite data in 
built–in memory backup.  With low power consumption, the GPS-22 tracks up to 8 satellites at a time, 
re-acquires satellite signals in 100 ms and updates position data every second.  

 

1.2   Features 

The GPS-22 provides a host of features that make it easy for integration and use. 
 
1.  Position accuracy in < 3m CEP (50%) or <5m CEP ((90%) without SA (horizontal) 
2.  Ultra low power: 17mA typical -- tracking at 3.3 Volts, full power 
3.  High sensitivity: to -143 dBm tracking, superior urban canyon performances 
4.  Small form factor and low cost solution 
5.  Ready-to-plug solution. Easily integrated into existing systems 
6.  On-board RAM for GPS navigation data 
7.  PPS output (User may have different interval setting from 1 second to 1 minute. 
8.  Differential capability utilizes real-time RTCM corrections producing < 1 meter position accuracy. 
9.  FLASH based program memory: New setting is stored permanently. 

 

1.3  FirstGPS Architecture Highlights

 

1.3.1 Industry Leading GPS Performance 

-

 

Builds on high performance

 FirstGPS

TM

  

 

core 

-

 

Satellite signal tracking engine to perform GPS acquisition and tracking functions without CPU 
intervention 

-

 

High sensitivity: to -143 dBm tracking, superior urban canyon performances 

-

 

Position accuracy: < 3m CEP (50%) without SA (horizontal) 

-

 

Warm Start is under 42 seconds (90%) 

-

 

Hot Start is under 10 seconds (90%) 

 

1.3.2 Low Power 

-

 

Ultra low power integrated circuit design, optimized RF and DSP architectures 

-

 

Further power saving thanks to 4 different power down mode

 

 

1.4  Application

 

1. Car 

Navigation 

2. Mapping 
3. Surveying 
4. Agriculture 
5.  Palmtop, Laptop, PDA 
6.  Location Based Services enabled devices 
7. Asset 

management/tracking 

8. Handheld 

receivers 

 

1.5  Technology specifications

 

1.5.1 Physical Dimension 
 

1.  Size:  31.59(W) x 26.59(D) x 11.20(H) (mm) 

Summary of Contents for GPS-22

Page 1: ...er 17mA typical tracking at 3 3 Volts full power Rikaline International Corp 14F 171 ChengGong Rd Sanchong City Taipei 241 Taiwan R O C Phone 886 2 8973 1899 Fax 886 2 8973 1896 E Mail info rikaline c...

Page 2: ...atures 3 1 3 FirstGPS Architecture Highlights 3 1 4 Application 3 1 3 Technology specifications 3 2 Operational Characteristic 5 2 1 Initialization 5 2 2 Navigation 5 3 Hardware Interface 6 3 1 Physic...

Page 3: ...22 provides a host of features that make it easy for integration and use 1 Position accuracy in 3m CEP 50 or 5m CEP 90 without SA horizontal 2 Ultra low power 17mA typical tracking at 3 3 Volts full...

Page 4: ...m CEP 50 or 5 m CEP 90 Velocity 0 1 meters second Time 1 microsecond synchronized GPS time DGPS Differential GPS Position 1 m typical Velocity 0 05 meters second typical 5 Dynamic Conditions Altitude...

Page 5: ...n performance If significant inaccuracy exists in the initial data or the orbital data is obsolete it may take more time to achieve a navigation solution The FirstGPS architecture provides superior pe...

Page 6: ...E DESCRIPTION 1 GND Power and Signal Ground 2 ON OFF I ON Off command line 3 VCC 3 0 to 3 6 Volts DC Input Power Supply 4 USPED I 9600 4800 Bd UART Speed 5 RXA I Serial Receive Data Port A GPS NMEA Da...

Page 7: ...d processor at 83ms duration After a reset condition the default setting for this port is inactive This setting can be modified with the PXEMaPS manufacturer specific NMEA sentence defined below 6 RES...

Page 8: ...cription GPGGA Global positioning system fixed data GPGLL Geographic position latitude longitude GPGSA GNSS DOP and active satellites GPGSV GNSS satellites in view GPRMC Recommended minimum specific G...

Page 9: ...Satellites GSA Table 4 5 contains the values for the following example GPGSA A 3 07 02 26 27 09 04 15 1 8 1 0 1 5 33 Table 4 5 GSA Data Format Name Example Units Description Message ID GPGSA GSA prot...

Page 10: ...ation must be sent in subsequent sentences These fields will be null if unused 4 1 5 Recommended Minimum Specific GNSS Data RMC Table 4 9 contains the values for the following example GPRMC 161229 487...

Page 11: ...me pseudo range correction data in RTCM SC 104 format with message types 1 5 or 9 As using DGPS receiver with different communication parameters GPS 22 may decode the data correctly to generate accura...

Page 12: ...f the requested action A if the action was successful V otherwise The following proprietary NMEA sentence identifiers are implemented 4 3 2 2 DI Diagnostic Message optional This sentence outputs a dia...

Page 13: ...us A success V failure 4 3 2 5 PT Port Configuration This sentence configures the application serial port communication parameters PXEMaPT xxxxxx x a x hh Name Example Units Description Message ID PXE...

Page 14: ...Units Description Message ID PXEMaVR Proprietary VR protocol header a mode Q set R response Component type A M measurement platform MPM firmware A FirstGPS TM API N FirstGPS TM Library R native RTOS...

Page 15: ...gth is lower are ignored to compute the solution DOP Mask 12 Max Dilution Of Precision to accept the solution PDOP Switch 6 Max Position DOP 4 4 3 FILTER configuration Kalman Filter 4 4 4 OFFSET confi...

Page 16: ...atum with WGS84 6 Ordering Information 6 1 Products Options 6 1 1 GPS Receiver Module GPS 22 Standard with 50mm flat 16 pin Cable 6 2 Accessories A 10302 MCX Active Antenna 2M A 10305 MCX Active Anten...

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