1、 Working principle:
Divide the coal yard into vertical and horizontal directionsM*NA network, this process is equivalent to cutting a pile of coal intoM*NA small coal pillar with a quadrilateral base

According to a certain mathematical model, the spatial coordinate values of each grid point are calculated, and the reorganized coordinate values reflect the surface shape of the coal pile. This process is to establish a digital ground model of the coal pile.

Calculate the volume of each small coal pillar, accumulate the sum of the volumes of each small coal pillar, and thus calculate the volume of the entire coal pile.InRTKIn operation mode, the reference station transmits its observation values and station coordinate information to the mobile station through a data link. Mobile stations not only receive data from benchmark stations through data links, but also collect dataGPS

Observing data and composing differential observations within the system for real-time processing, while providing centimeter level positioning results, takes less than one second. The mobile station can be in a stationary state or in motion.

2、 Introduction to main equipment1CONTOUR

Introduction to laser rangefinder:1The structural characteristics of the CONTOUR laser rangefinder allow you to operate it by simply aiming through the red dot in the aiming eyepiece installed on the rangefinder, pressing the launch button, and thenWithin seconds, data such as distance, altitude, and angle with true north can be obtained without the need for a prism as a reflective target. The measuring feature of a rangefinder is that it can measure data such as horizontal distance, inclination, and height by using a multifunctional menu style operation and a built-in tilt sensor. In terms of usage,CONTOUR

The rangefinder adopts a pistol trigger firing button, which can be operated with both hands without the need for auxiliary tools such as tripods.Usage characteristics and advantages

：

Suitable for measuring any shape of material pile in open-air material yards and dry coal sheds.

No need for auxiliary equipment and tools such as loading and unloading bridges, bucket wheel machines, benchmarks, prisms, etc. 1.5As a portable instrument, it is lightweight and agile, with a total weight of onlykilogram

.1Easy to operate, the entire task only requires1People,10Can be completed within hours

A 10000 ton material yard.

Laser radiation has low energy, lower radiation energy than TV remote controls, harmless to the eyes, and safe to use.

Adopting Bluetooth communication for unlimited transmission.10The working time of PDA power supply is long, about

Hours, much longer than the working time of a laptopStructural characteristics
:Aiming eyepiece-----The aiming eyepiece has a red aiming point inside to help you accurately aim at the target,
The intensity of the red dot can be adjusted to adapt to different lighting environments. Below the red dot, the distance of the current aiming position is displayed, which intuitively shows the pattern of distance transformation of the current feature line.Launch mirror--------
The rangefinder emits infrared laser signals through a transmitting mirror.Receiving mirror--------

The receiving mirror receives the reflected infrared radiation and transmits the signal to the internal circuit of the instrument for calculation.operating button------
The trigger button of the handgun conveniently emits laser signals to meet work needs.speaker--------
Report the working condition of the instrument to you through different sounds.LCDscreen------Precise backlightLCD
The screen can meet your needs for day and night operations, displaying the data you want anytime, anywhere.battery--------The instrument is equipped with original rechargeable batteries, which can meet continuous operation requirements9-10
Hour by hour power requirements, safe and environmentally friendly.Data output port----PDA

2. It has the function of synchronizing with the computer. As long as it is connected to the computer with a cable, the on-site inventory data can be opened using software.Imported from the United StatesGPS RTKMobile Station+

Reference station
Trimble R-Track technologyadvancedTrimble Maxwell 5 Custom Survey GNSS72Chips, there are
Channelsused forGNSS
High precision multi correlator for pseudorange measurement
Non filtered, non smooth pseudorange measurement data, low noise, low multipath error, low temporal correlation, and
high dynamic responseExtremely low noiseGNSSCarrier phase measurement,1 HzSampling rate accuracy
<1 mmSignal to Noise Ratio
(dB-Hz)Verified through practical experienceTrimble
Low altitude angle satellite tracking technology
Synchronized tracking of satellite signals:– GPS：L1C/A、L2E (Trimble L2Ptracking method
)– GLONASS1：L1C/A、L1P、L2C/A (onlyGLONASS M)、
L2P– SBAS：
L1C/ACoding differentialGNSS2
positioninglevel
0 25 m + 1 ppm RMSvertical
0 50 m + 1 ppm RMSWAAS3 Differential positioning accuracytypical
<5m 3DRMSStatic and Fast StaticGNSS2
measurelevel
3 mm + 0 1 ppm RMSvertical
3 5 mm + 0 4 ppm RMS2
Dynamic measurementlevel
10 m + 1 ppm RMSvertical
20 mm + 1 ppm RMS4 initialization timetypical<25
second4 Initialize reliabilitytypical
>99 9%
hardware
Physical specificationssize(W×H) 19 cm × 10 9 cm
, including connectorsweight1 34 kg, including built-in battery, built-in wireless modem, and standardUHF
antennaentireRTKmobile station3 70 kg
, including batteries, benchmarks, controllers, and mounting brackets6
temperaturework–40°Carrive
+65°Ckeep in storage–40°Carrive
+75°Chumidity100%
, CondensationWaterproof and dustproofIP671Dustproof and prevent short-term immersion underwater
rice
The impact resistance and shock resistance have been tested to meet the following environmental standards:2When impact resistance is not working: from
Falling from a high pole to a cement floor without damageWorking hours: maximum40G10，
Milliseconds, jagged edgesshockproof
MIL-STD-810F, FIG 514 5C-1
electricalpower supply11–28 VDC1portExternal power input(7rush pithLemo)
There is overvoltage protectionInstallation of built-in battery box7 4V 2 4AhLithium ion removable rechargeable batteriesRTK
Use built-in in modeThe power consumption of the wireless modem is3 2W
Built in battery working time:– 450 MHzReceive options5 88
hour– 450 MHzSending and receiving options3 79
hourauthenticationClass B Part 15, 22, 24 FCCauthentication,
850/1900 MHz Class 10 GSM/GPRSmodular.CE MarkApproval andC-tick
approval
Communication and data storage1portThree wire serial(7rush pithLemo)2. PortcompleteRS-232Serial(Dsub 9rush pith
)Complete set, fully sealed, built-in450 MHz
Transceiver:–Transmission power:
0 5 W–7range: Typical3–5 km/the best
10 kmComplete set fully sealed2 4 GHzcommunication port(Bluetooth?)10
：ExternalGSM/GPRS/3GModems and cellular phone support, capable ofRTKandVRS
operate11 MB302Built in data storage:15Hourly raw observations, every6
Record once per second, average usage
Satellite1 Hz、2 Hz、5 Hzand10 Hz
positioningCMR+、CMRx、RTCM 2 1、RTCM 2 3、RTCM 3 0、RTCM
3 1
16inputAnd outputindividualNMEAOutputGSOF、RT17andRT27Output. support

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