Part 6 – AT Commands for GPS-Enabled DevicesChapter 16 – AT Commands for GPS-Enabled Devices

SUPPORTED MESSAGE LIST

The following NMEA messages are supported.

Sentence

Descriptions

GGA

Global Positioning System Fix Data

GLL

Geographic Position – Latitude/Longitude

GSA

GNSS DOP and Active Satellites

GSV

GNS Satellites in View

RMC

Recommended Minimum Specific GNSS Data

VTG

Course Over Ground and Ground Speed

NMEA MESSAGES

The full descriptions of supported NMEA messages are provided at the following paragraphs.

GGA – Global Positioning System Fix Data

Time, position and fix related data for a GPS receiver.

Structure:

$GPGGA,hhmmss.sss,ddmm.mmmm,a,dddmm.mmmm,a,x,xx,x.x,x.x,M,,,,xxxx*hh<CR><LF>

Example:

$GPGGA,111636.932,2447.0949,N,12100.5223,E,1,11,0.8,118.2,M,,,,0000*02<CR><LF>

Name

Example

Description

Message ID

$GPGGA

GGA Protocol Header

UTC Time

111636.932

UTC of position in hhmmss.sss format, (000000.000 ~

 

 

235959.999)

Latitude

2447.0949

Latitude in ddmm.mmmm format

N/S Indicator

N

Latitude hemisphere indicator, ‘N’ = North, ‘S’ = South

Longitude

12100.5223

Longitude in dddmm.mmmm format

E/W Indicator

E

Longitude hemisphere indicator, 'E' = East, 'W' = West

GPS quality

1

0: position fix unavailable

indicator

 

1: valid position fix, SPS mode

 

 

2: valid position fix, differential GPS mode

 

 

3: GPS PPS Mode, fix valid

 

 

4: Real Time Kinematic. System used in RTK mode with fixed

 

 

integers

 

 

5: Float RTK. Satellite system used in RTK mode. Floating

 

 

integers

 

 

6: Estimated (dead reckoning) Mode

 

 

7: Manual Input Mode

 

 

8: Simulator Mode

Satellites

11

Number of satellites in use, (00 ~ 12)

Used

 

 

HDOP

0.8

Horizontal dilution of precision, (00.0 ~ 1023)

Altitude

118.2

Antenna Altitude above/below mean sea level (geoid), (-9999.9 ~

 

 

17999.9)

Units

M

Unit of antenna altitude (meters)

Null

,,

Field not available on GPS cards

Null

,,

Field not available on GPS cards

DGPS

0000

Differential reference station ID, 0000 ~ 1023 (NULL when DGPS

Station ID

 

not used)

Checksum

02

 

<CR><LF>

<CR><LF>

End of message (termination)

Universal IP AT Commands Reference Guide (Document S000457K)

99

Page 98 Page 100
Page 99
Image 99
Multi-Tech Systems iCell GPRS (MTSMC-G2-IP manual GGA Global Positioning System Fix Data, Structure, Example
Page 98 Page 100

iCell GPRS (MTSMC-G2-IP specifications

Multi-Tech Systems iCell GPRS (MTSMC-G2-IP) is a versatile and powerful device designed for seamless connectivity in various applications, particularly in industrial and commercial environments. Known for its robust performance, the iCell GPRS module incorporates advanced technologies that enable effective communication over GPRS networks, making it an ideal solution for IoT applications, remote monitoring, and data collection processes.

One of the main features of the iCell GPRS is its dual SIM capability, which enhances network reliability and ensures continuous connectivity even in the event of network outages. By allowing the use of two SIM cards from different carriers, the device can switch between networks automatically, thereby minimizing downtime and maintaining critical communication channels.

The iCell GPRS supports various protocols including TCP/IP, UDP, and MQTT, which facilitates seamless integration with a range of applications. This flexibility in communication protocols allows developers to create customized solutions tailored to their specific needs, ensuring that the device can fit seamlessly into their existing infrastructure.

Another key characteristic of the MTSMC-G2-IP is its compact design and durability, making it suitable for deployment in a variety of environments. It features a wide operating temperature range that allows it to function efficiently in both extreme heat and cold, thereby catering to diverse applications across different industries. Additionally, the device is designed for easy installation and integration, which helps reduce deployment time and costs.

The iCell GPRS also includes built-in security features such as firewalls and secure data transmission protocols, protecting sensitive information from unauthorized access. This is particularly important for applications in sectors such as healthcare, finance, and transportation, where data integrity and security are paramount.

Furthermore, the device is equipped with various I/O ports that facilitate connectivity with external sensors, actuators, and other hardware. This feature makes it highly adaptable for monitoring and control systems, enabling users to gather real-time data and respond promptly to changing conditions.

In sum, the Multi-Tech Systems iCell GPRS (MTSMC-G2-IP) is a reliable and feature-rich solution designed for modern communication needs. Its dual SIM support, protocol versatility, robust design, and integrated security features make it an ideal choice for IoT and remote monitoring applications across numerous industries. Whether used in industrial automation, environmental monitoring, or smart cities, the iCell GPRS stands out as a dependable device that enhances connectivity and operational efficiency.
Top Page Image Contents