User Manual

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HiPerII Chapter 1

Introduction

The HiPerII receiver is a multi-frequency, GPS+ receiver built to be the most advanced and

compact receiver for the surveying market. The receiver is a multi-function, multi-purpose

receiver intended for precision markets.

Precision markets means markets for equipment, subsystems, components and software for

surveying, construction, commercial mapping, civil engineering, precision agriculture and

land-based construction and agriculture machine control, photogrammetry mapping,

hydrographic and any use reasonably related to the foregoing.

The HiPerII can receive and processes multiple signal types ( including the latest GPS L1, L2,

C/A, L2C GLONASS L1, L2, C/A signals ) improving the accuracy and reliability of the survey

points and positions, especially under difficult jobsite conditions. The multifrequency and

GPS+ features of the receiver combine to provide a positioning system accurate for any survey.

Several other features, including multipath mitigation, provide under-canopy and low signal

strength reception. The receiver provides the functionality, accuracy, availability, and integrity

needed for fast and easy data collection.

Figure 1-1. HiPerII Receiver

Principles of Operation

Surveying with the right GPS receiver can provide users accurate and precise positioning, a

requirement for any surveying project. This section gives an overview of existing and

proposed Global Navigation Satellite Systems ( GNSS ) and receiver functions so that basic

operating principles can be applied.

HiPerII Chapter 1

Summary of content (14 pages)

PAGE 1
HiPerII Chapter 1 Introduction The HiPerII receiver is a multi-frequency, GPS+ receiver built to be the most advanced and compact receiver for the surveying market. The receiver is a multi-function, multi-purpose receiver intended for precision markets.
PAGE 2
HiPerII Chapter 1 GNSS Overview Currently, the following two global navigation satellite systems ( GNSS ) offer line-of-site radio navigation and positioning, velocity, and time services on a global, all-weather scale to any user equipped with a GNSS tracking receiver on or near the Earth's surface: GPS - the Global Positioning System maintained and operated by the United States Department of Defense. For information on the status of this system, visit the US Naval Observatory website ( http://tycho.usno.
PAGE 3
HiPerII Chapter 1 Calculating Differential Positions DGPS, or Differential GPS, is a relative positioning technique where the measurements from two or more remote receivers are combined and processed using sophisticated algorithms to calculate the receivers' relative coordinates with high accuracy.
PAGE 4
HiPerII Chapter 1 Essential Components for Quality Surveying Achieving quality position results requires the following elements: Accuracy - The accuracy of a position primarily depends upon the satellite geometry ( Geometric Dilution of Precision, or GDOP ) and the measurement (ranging) errors. Differential positioning ( DGPS and RTK ) strongly mitigates atmospheric and orbital errors, and counteracts Selective Availability ( SA ) signals the US Department of Defense transmits with GPS signals.
PAGE 5
HiPerII Chapter 1 An internal GPS+ antenna equipped with a low noise amplifier ( LNA ) and the receiver's radio frequency ( RF ) device are connected with a co-axial cable. The wide-band signal received is down-converted, filtered, digitized, and assigned to different channels. The receiver processor controls the process of signal tracking. Once the signal is locked in the channel, it is demodulated and necessary signal parameters ( carrier and code phases ) are measured.
PAGE 6
HiPerII Chapter 1 Batteries The HiPerII receiver comes equipped with one detachable, re-chargeable batteries ( Figure 1-2 ) for powering the receiver. Figure 1-2. HiPerII Batteries Please use CDC68 as battery charging cradle. It takes approximately four hours to completely charge one battery, and eight hours to charge two batteries.
PAGE 7
HiPerII Chapter 1 output ( Figure 1-5 ). Scheduler Satellite Tracking Bar Available Power Bar Memory Capacity Bar Wireless Status Receiver Health Radio Status Serial Port Status Battery Status Position Status File Statius Figure 1-5. HiPerII MINTER Available Power Bar indicates battery remaining or voltage. Green - indicate greater than 50%. Yellow - indicate greater than 25%. Red - indicate greater than 10%. Red blink - indicate less than 10%.
PAGE 8
HiPerII Chapter 1 Wireless Status LEDs indicate status of the internal Blue-tooth module. Blue - internal Bluetooth connection has been established. Blue blink - internal Bluetooth connection has not been made, as long as the module has power. Blue dark - internal Bluetooth is not being powered. Green flash - date is transmitted from the Bluetooth port. Orange flash - date is received from the Bluetooth port. Radio Status LEDs indicate status of the internal UHF radio and GSM module.
PAGE 9
HiPerII Chapter 1 Factory reset Erase memory Disregard 10 With the receiver on, press the button for 1 0 seconds until you hear the "Factory Reset" message or sound and the top three LEDs on the battery life, satellite tracking, and memory gauges illuminate. Release the button to reset all stored parameters on the receiver to their default values. Note: This action is irreversible.
PAGE 10
HiPerII Chapter 1 External Radio Antenna Connector The UHF and SS antennas connect to the external antenna connector under the HiPerII housing ( Figure 1-7 ). Both modem antenna types include support for a GSM modem. The modem antenna depends on the type of modem in-stalled in the receiver: UHF: Uses a BNC RF connection and comes in three versions: 410-440MHz ( p/n 30-070003-01 ) and 440-470MHz ( p/n 30-050503-01 ).
PAGE 11
HiPerII Chapter 1 SD/MMC and SIM Card Slots The SD and SIM card slots reside under the batteries near the base of the dome. The SD card slot is located to the left of the MINTER inside the battery pocket ( Figure 1-9 ) and connects an optional SD card to the receiver board to provide memory. Once installed, the SD card usually remains inside the receiver. The data that resides on the SD card can be accessed via the serial port, or Bluetooth wireless technology.
PAGE 12
HiPerII Chapter 1 Cable Description Cable Illustration Serial Cable Connects the receiver to an external device ( controller or computer data transfer and receiver configuration. Body of connector back. p/n xx-xxxxxx-xx Other Accessories Battery ( BDC58 ) Li-ion Battery [ 4300mAh,7.2V DC ]. Power system - without Power Cable ( CDC68 ) Battery BDC58 [ about 150min ] × 2、AC100V [ without AC power cable、CDC68-11 include ] Power Cable ( EDC113/A/B/C/D/E ) CDC68 to AC consent.
PAGE 13
HiPerII Chapter 1 local Sokkia Topcon dealer.
PAGE 14
HiPerII Chapter 1 Update rate standard 1Hz ( optional 5, 10, or 20Hz ) RTK at 1Hz, 5Hz, 10Hz, and 20Hz RTCM/CMRInput/Output Advanced multipath reduction Wide Area Augmentation System ( WAAS ) Receiver Autonomous Integrity Monitoring ( RAIM ) HiPerII Chapter 1