A kind of system of real-time monitoring hull baseline flexure in place
Technical field
This utility model belongs to shipbuilding technology and field of optical measurements, and in particular to a kind of real-time monitoring hull in place
The system of baseline flexure, particularly a kind of baseline under shipyard environment in boatbuilding body bends measuring system.
Background technology
Hull baseline is shipping depth gauge and load line may be drawn and important equipment pedestal manufactures the benchmark of plane, is also to weigh
One of major criterion of shipbuilding quality.The base line measurement of domestic ship, is related to hull carrying, hull examination and hull and undocks
Lower water three phases.Particularly main hull is carried the stage, and shipyard is the construction precision for controlling hull, needs to monitor hull baseline
Flexure situation, and accordingly in the corresponding accuracy improvements measure of hull carrying stage enforcement.Therefore during hull construction how
The flexure for quickly and accurately measuring hull baseline is the key technology that current shipbuilding industry need be solved.
At present, the conventional measurement means of hull baseline flexure have horizontal tube method, simple mark post method, total station survey method, swash
Light transit survey method etc..
(1)Horizontal tube method and simple mark post method measuring principle are simple and easily operated, but scaffold is intensive on building berth, space
Narrow, measuring environment is more severe, affects the factor of certainty of measurement more and spends the time longer.
(2)Total station survey method is the main measurement means that current shipyard is adopted, and is used for the base line measurement of shipyard environment,
Measurement every time needs 2 ~ 3 people, spends the time of half a day.Restricted by the light of shipyard environment, total station survey method is every 70 meters of left sides
It is right once to be turned station, the higher station error that turns thus can be introduced, total error reaches as high as 5 ~ 6mm.
(3)Laser transit precision is high compared with total powerstation, but has that measurement efficiency is low, require high deficiency to measuring environment.
In measurement process, it is impossible to have barrier otherwise directly cannot measure to measurement point, and the site environment of dock is complicated, leads to
Chang Wufa ensures being normally carried out for measurement.
The measuring method that shipyard is adopted, is required to manually record the deflection value of each measurement point, and manual record mode is not
Measurement efficiency can only be affected, increase follow-up work amount, and hull baseline deflected can not intuitively, be immediately presented.To sum up
Described, the measuring method that shipyard is adopted has that efficiency is low, precision.
Not yet carry out the correlational study that real-time monitoring in place is bent for hull baseline both at home and abroad at present.
Utility model content
To overcome the shortcomings of current shipyard using measurement means and defect, the purpose of this utility model is to provide one kind to exist
The system of position real-time monitoring hull baseline flexure, realizes during hull construction in place, real-time, the accurate inspection of hull baseline
Survey, the baseline of monitored hull is expressed by the way of sag curve, is easy to staff to check.
To achieve these goals, the technical solution of the utility model is as follows:A kind of real-time monitoring hull baseline in place is scratched
Bent system, it is characterised in that the system includes several laser range sensors, realizes the automatic measurement of hull baseline, obtains
Take measurement data;Measuring instrument installs equipment, and laser range sensor is arranged on the measuring instrument installation equipment;Protection
Cover, the protective cover is arranged on outside laser range sensor;Data transmission set, respectively with described several laser ranging sensings
Device and terminating machine connect, and the data exchange between several laser range sensors and terminating machine are realized, by hull base
The data transfer of line is to terminating machine.
According to preferred embodiment of the present utility model, the measuring instrument installs equipment to be included being arranged on the three of dock bottom
Foot rest and pedestal centralizer, laser range sensor is arranged on spider by pedestal centralizer.
According to preferred embodiment of the present utility model, glass sunroof is provided with the top of protective cover, ensure that Laser Measuring
Away from the normal work of sensor.
According to preferred embodiment of the present utility model, steel ruler is provided with the protective cover, for each laser ranging sensing
Device unified measurement benchmark.
According to preferred embodiment of the present utility model, the system of the real-time monitoring hull baseline in place flexure also include with
The level gauge that several laser range sensors are engaged.
According to preferred embodiment of the present utility model, the data transmission set includes RS485 buses and wireless data sending electricity
Platform, RS485 buses connect each laser range sensor, and the data transmission interface of laser range sensor is connected by RS485 buses
Live end wireless digital broadcasting station, the live end wireless digital broadcasting station and terminal wireless data radio station wireless telecommunications are connected to, and are led to
Cross live end wireless digital broadcasting station and be connected to terminating machine.
This utility model is applied to hull and always organizes in build process in dock, realizes the real-time monitoring that hull baseline bends.
The utility model can increase substantially measurement efficiency, shorten shipbuilding period, improve shipbuilding precision, reduce workman's measurement hull baseline
Workload.
Description of the drawings
The composition structure chart of Fig. 1 this utility model systems.
The data-transmission mode of Fig. 2 systems.
Specific embodiment
This utility model includes hull baseline flexure automatic monitoring system hardware and software composition, and wherein hardware includes laser
Distance measuring sensor, measuring instrument install level device, preventer, data transmission set, level gauge and auxiliary equipment composition;
Software is made up of modules such as device management module, data exchange module, serial communication module and deviation fittings.
1st, laser range sensor 1:The automatic measurement of hull baseline is realized, measurement data is obtained.Laser range sensor
Ranging be 0.5 ~ 40m, meet the requirement of hull base line measurement range;Certainty of measurement is ± 1.0mm, can effectively ensure that baseline
Certainty of measurement;Operation temperature is -10 °C ~+60 °C, ensure that the normal work under building berth adverse circumstances;Degree of protection reaches
IP65 levels, are prevented from the intrusion of dust and steam.
2nd, measuring instrument installation, level device:It is made up of spider 3 and pedestal centralizer 2, wherein spider 3 is realized swashing
Ligh-ranging sensor 1 is steadily placed in dock, and pedestal centralizer 2 ensures that laser vertical projects measurement point in horizontal plane.
By three legs for adjusting pedestal centralizer 2, bubble is set to move to the center of leveling pipe, it is ensured that leveling precision reaches
To 30 " more than.Spider 3 is the special spider of 80cm for flexible height, can be easily installed in dock bottom, is easy to measure mould
The dismounting of block.
3rd, preventer:It is made up of aluminium alloy protective cover and steel ruler, under severe dock measuring environment, protects laser
Distance measuring sensor.
The gap of protective cover carries out bonding using waterproof glass glue, can effectively prevent the intrusion of rainwater.On the top of protective cover
End is provided with glass sunroof, ensure that the normal work of laser range sensor.The steel ruler of protective cover external pasting is used for each laser
Distance measuring sensor unified measurement benchmark.
4th, data transmission set:Using wireless digital broadcasting station 6, realize the data transfer of hull Os Draconis flexure in depressed place
To the terminating machine of the measure of precision department of shipyard.Data transmission set includes RS485 buses 5 and wireless digital broadcasting station 6, RS485
Bus 5 connects each laser range sensor 1, and the data transmission interface of laser range sensor 1 is connected to by RS485 buses 5
Live end wireless digital broadcasting station 6, and terminating machine 8 is transferred signals to by terminal wireless data radio station 7.Terminal wireless number conducts electricity
RS485 RS 232s interface 9 is also set up between platform 7 and terminating machine 8.
Wireless digital broadcasting station operating frequency passes frequency range 433Mhz and connects for international number, using GFSK modulation systems, frequency
Stability it is preferable;The RS232 interfaces of CPU serial ports and computer can directly be connect;Reachable 2Km ~ the 10Km of sighting distance transmitting distance,
Ensure that base line measurement data, in the case where having hull and building to block, remain to transmit to terminating machine.
5th, level gauge 4:The measuring basiss of each laser ranging module of unification.Level gauge used, its observed range is up to 100m
More than, setting accuracy 0.3 ", micrometer lattice value 0.1mm can be estimated and read 0.01mm.
6th, auxiliary equipment:Including RS485 buses 5, waterproof junction box, storage battery 10(24V).RS485 buses are used to transmit number
According to;Waterproof junction box is used to for each measurement module to be connected to RS485 buses, and protects connection wiring;Storage battery is used for laser
Range-measurement system is powered.
7th, device management module:Realize the configuration of laser range sensor parameter, such as arrange device numbering, transmission address,
Altitude datum of correspondence rib position number and equipment etc..
8th, data exchange module:The measurement data of diastimeter is saved in local data base by realization, by certain algorithm
By the metrical information of each measurement module(Comprising monitoring wheel number, measuring apparatus numbering, measurement data, time of measuring, job number
Deng)Data base is stored, is easy to the calculating of later stage hull baseline offset.
9th, serial communication module:Realize the software and hardware interaction of measuring system.By serial communication parameter setting → opening string
Mouthful → send and ask → await a response → be received back to answer character string → parsing to respond character string(If running succeeded and having data to need
Return, the returned data extracted)→ a series of Control on Communication operation such as serial ports is closed, by measurement data import system,
And realize the switch and working state control of measuring instrument.
10th, deviation fitting module:The comparison of hull base line measurement data and gross data is realized, is calculated between the two
Deviation, and showed in the way of sag curve, the flexure situation for showing hull baseline directly perceived.
When being embodied as, the operating procedure of the system of the real-time monitoring hull baseline flexure in place is:
(1)Measuring apparatus are installed.Tripod, pedestal centralizer and laser range sensor are installed successively in dock bottom.
(2)Measuring apparatus connect and system power supply.Connect each measuring apparatus, wherein data transmission interface with RS485 buses
Wireless digital broadcasting station 6 is connected to by RS485 buses, upper electricity and ground interface are connected to storage battery, open electricity by RS485 buses
Bottle gives system power supply.
(3)Measuring apparatus parameter setting and debugging.Software initialization, host computer com port connection wireless digital broadcasting station, passes through
The device management module of software arranges the numbering of each measuring apparatus, transmission address, correspondence rib position number, and is detected by test function
The availability of each measurement module.
(4)Unified measurement benchmark.Adjust the position of each measurement module spider, leveling pedestal centralizer, it is ensured that Laser Measuring
Launch laser away from sensor vertical, and ensure that the measurement point that laser spots are identified with hull bottom overlaps;Level gauge sets station, and observes successively
The scale of scale on each diastimeter protective cover, using scale value as altitude datum input equipment management module;
(5)Setting measurement mode.Needed to arrange metering system and measure the cycle in software according to measurement, such as continuous survey
Amount, fixed wheel measurement and Timing measurement etc.;
(6)Start monitoring.The height of each measurement point is shown in the main interface of software, and fits sag curve, by scratching
Line of writing music checks the offset deviation value of respective ribs position, to carry out later stage amendment work.