GLEAD ZYM-GM7033-MF GNSS Mouse Receiver User Manual

ZYM-GM7033-MF
GPS+GLONASS
Mouse
User’s Manual

Revision History

Usage Notice

Please read before you start to use the GNSS receiver:

GNSS(Global Position System) is found and operated by the US Department of defense. The Organization is responsible for the accuracy and maintenance of the system with full authority. Any change that is made by the organization will affect the accuracy and function of GNSS.
For your driving security, we strongly suggest that you do not operate the device during driving.
When the satellite is navigating, if you are inside a building, tunnel, or near huge blocks, it will affect GNSS satellite signal receiving. At this time, this device probably does not have positioning capability.
If you have a speed alarm in your car, the signal receiving of this device will interfere. If this situation happens, please stop using your speed alarm.
Please do not expose this device to run for a long time to avoid damage to the internal precision circuit.

Introduction

Overview

The ZYM-GM7033 Smart GNSS Receiver is a total solution GNSS receiver, designed based on MediaTek.Inc SOC MT3333AV. This positioning application meets strict needs such as car navigation, mapping, surveying, security, agriculture, and so on. An only a clear view of the sky and a certain power supply is necessary to the unit. It communicates with other electronic utilities via compatible RS232 and saves critical satellite data by built-in backup memory. With low power consumption, the GM7033 tracks up to 99 satellites at a time, re- acquires satellite signals in 100 ms, and updates position data every second.
Trickle-Power allows the unit operates a fraction of the time and Push-to-Fix permits users to have a quick position fix even though the receiver usually stays off.

Features

G-Mouse provides a host of features that make it easy for integration and use.

1. Using the advanced GNSS module, the module got a high-performance DSP core(32bit ARM RISC), allowing users to design different applications, store them in the module, to provide the most economic solution for anybody.
2. High-performance tracks up to 99 satellites.
3. High sensitivity (-165 dBm) for indoor fixes. The GM7033 GNSS module can acquire in only seconds even at low signal levels. As part of GM7033’s patented multi-mode GNSS, the GM7033 GNSS module can track signal levels as low as -165 dBm. The GM7033 supports real-time navigation in urban canyons as well as the high sensitivity acquisition needed for indoor environments.
4. Differential capability utilizes real-time RTCM corrections producing 1-5 meter position accuracy.
5. A compact design ideal for applications with minimal space.
6. A rechargeable battery sustains the internal clock and memory. The battery is recharged during normal operation.
7. Built-in WAAS Demodulator.
8. Waterproof IP67 design for industry standard.
9. Built-in high gain 36mm36mm4mm ceramic patch antenna.

Technical Specification

1.3.1. Outline, Pin connection
Outline: (mm)。

1.3.2. Hardware Interface
The ZYM-GM7033 includes an antenna in a unique style waterproof gadget. Simply connect to one of the accessories linking to your mainboard or other devices.

1.3.3. Environmental Characteristics

1. Working Temperature: -40~+85°C
2. Storage temperature: -40 ~+90°C
3. Humidity：≦95%

1.3.4. Electrical Characteristics

1. Input voltage: 5.0 +/- 10% V DC
2. Inpur current：<80mA
3. Backup battery: +3.0V DC (Inner Rechargeable Lithium battery).

1.3.5. Performance

1. Channels: 99

2. Update rate: 1 second.

3. Acquisition time (average)
   Hot start: <1 second(open sky).
   Cold start: <35 second(open sky).

4. Position accuracy:
   Position: <10m 90% no SA
   Velocity: 0.1 m/sec no SA
   Time: 1 second synchronized GNSS time

5. Dynamic Conditions:
   Altitude: 50,000m max
   Velocity: 500 m/sec (1,000 knots) max
   Acceleration: 4G max

1.3.6. Interfaces

1. Dual-channel RS232 compatible level, with user-selectable baud rate (9600-Default, 4800, 19200, 38400)
2. NMEA 0183 Version 4.1ASCII output (GGA, GSA, GSV, RMC, option GLL, VTG).

Operational Characteristics

Initialization Setup

After the initial self-test is complete, the G-mouse will begin the process of satellite acquisition and tracking. The acquisition process is fully automatic and, under normal circumstances, will take approximately 35 seconds to achieve a position fix (15 seconds if ephemeris data is known).
After a position fix has been calculated, valid position and time information will be transmitted over the output channel(s).
The G-Mouse utilizes initial data such as last stored position, data, and time as well as satellite orbital data to achieve maximum acquisition performance. If significant inaccuracy exists in the initial data, or if the orbital data is obsolete, it may take a long time to achieve a navigation solution. The G-mouse Auto-locate feature is capable of automatically
determining a navigation solution without intervention from the host system. However, acquisition performance can be improved if the host system initialized the G-mouse following the occurrence of one or more of the following events:
1)The GNSS receiver is not in use for more than 3 months or transportation over distances further than 500 kilometers.
2)Failure of the external memory battery without system standby power.

Navigation

After the acquisition process is complete, the G-Mouse will begin sending valid navigation information over its output channels. These data include:

1. Latitude/longitude/altitude
2. Velocity
3. Date/time
4. Satellite, receiver status, and Error estimates

Appendix A Software Protocol

A.1 NMEA Transmitted Message
NMEA is the standard of GNSS protocol. Cynosure GNSS receiver supports several NMEA sentences: GGA, GSV, GSA, RMC, VTG,
ZDA, GLL, and GRS. This data set includes the complete PVT(position, velocity, time) solution computed by the GNSS receiver.

Each sentence has a prefix beginning with a ‘$’ and ends with a carriage return/line feed sequence and can be no longer than 80 characters of visible text (plus the line terminators). There is a provision for a checksum at the end of each sentence which may or may not be checked by the unit that reads the data. The checksum field consists of a ‘’ and two hex digits representing an 8 bit exclusive OR of all characters between, but not including, the ‘$’ and ‘’. A checksum is required on some sentences.
The different prefix indicates the global position satellite systems for sentences GRS, GSA, and GSV:

$GP for GPS-only
$BD for BEIDOU2-only
$GL for GLONASS-only
$GN is for GNSS, a combination of the different global position satellite system.

GGA – Global Positioning System Fix Data

GSA – GNSS DOP and Active Satellites

GSV – GNSS Satellites in View

RMC – Recommended Minimum Specific GNSS Data

VTG – Course Over Ground and Ground Speed

ZDA – Time & Date

GLL – Geographic Position – Latitude/Longitude

Appendix B Coordinate System and Output Settings

• B.1 Coordinate System
World standard coordinate system WGS84 is building in.
• B.2 Output Settings
Coordinate System: WGS84.
Baud rate: 9600
Output message: GGA, GSA, GSV, RMC

Warning:
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However. there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
–Reorient or relocate the receiving antenna.
— Increase the separation between the equipment and receiver
–Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
–Consult the dealer or an experienced radio/TV technician for help

Read User Manual Online (PDF format)

Download This Manual (PDF format)

Download this manual  >>