LXBP-5Pavement roughness Tester is my company in the existing pavement roughness Tester is developed on the basis of the latest generation pavement roughness tester. Instrument taken by the revolutionary controller design, a working in theISM-band wireless data collector set temporal displacement after sampling data and mileage data that are sent to the host controller, complete data records by a master controller, computation, storage, print.
Wireless data acquisition system4Dry battery section, you can use15-20Hours can be completed at least some150KmMeasurement. Wireless data acquisition with a small LCD screen, can show the current offset and measure the mileage, with communications offline and battery voltage indication. Compact size when not in use, can be removed from the body, placed in the main control box.
Host controller7InchTFTTrue color LCD touch screen, all-Chinese show, full-touch operation, called the man-machine interface standards. Throughout the testing process can be observed on the primary control curve data changes, the interval is road surface displacement and average of the deviation curve, as well as the1Kmtest results within the deviation curve. All parameters and results will display on the screen is complete, beautiful interface is clear, simple and easy to use. Host controller built-in1Mbmemory, you can storethe 100Kmtest data. Complete data management system, supporting users to view test results as well as a continuous section of continuous statistical curve, you can select streamlined or full printed programme and print single or entire sections of the test results. Built-in programs to test number based on user input and test time data automatically is put together in a row for the user to view, thus avoiding the need of other manufacturers of the kind of simple controller user page keeps finding data in a row, and judge for themselves whether the data part of the needed sections of the phenomenon. This innovative approach to data management, allows users to save a lot of time. Host controllers can take220Vpower supply, or you can use12Vcar cigarette lighter power supply, so as to solve the flatness of the traditional instrument for storage battery always lack of electricity damage. Able to accuray monitor the collector on the host controller battery charge remaining, as well as battery life. Host controllers and collector in the open on the pavement, to at least ensure150mreliable communication distance, even in a sealed car, communication effectiveness is not affected. Lab operators can sit in the car to complete the entire operation, had to do just to stay close to the front of the tractor does not exceed150m.
This instrument and the existing three-meter measurement ruler and other measuring instruments, not only has the high measurement accuracy, fast, reliable data, assess the advantages of science, and the operation is simple, reliable, and significantly reduce the labor intensity, increase productivity and economic benefits. Applies to Highway and city roads, plazas, construction inspection, acceptance of airport runway pavement and road maintenance, but also can be used for teaching, design and scientific research units for information on pavement reliability analysis. This apparatus complies withJJG024-2002standards.
IIProduct features and specifications
Product features:
1) Design of controller for discrete, the host controller and data acquisitionISM-Band wireless communications.
2) Is use of battery-powered data acquisition, continuous measurement20Hours, at least150KmRoad sections.
3) Host controller7InchTFTTrue color LCD screen, Chinese display, full-touch operation.
4) You can display the current test interval displacement data curve, displacement from the mean of the last measurement interval deviation curve, recent1KmMeasuring changes in smoothness of curves.
5) All test values, set values, instantaneous values, can be on screen display.
6) With precision battery monitor, you can display the current balance power and battery life.
7) Automatically saves test data, built-in1MbMemory, you can store at least100KmTest data.
8) With a thermal printer, and can be set to print continuously during the test process.
9) For each measurement interval(100metres)The number of positive and negative variances, cumulative values, cross section area with Datum, averages, test speed, smoothness values are automatically saved, display, view, print.
10) The measured section number (road number, mileage, piling, road site, the variance setting, sample space) every time you print, summary serial number auto plus or minus one.
11) With perfect data management procedures, the test number system can be based on user input and retrieves the same data at test time, for users to view and print. And the program can automatically statistics this section1Kmthe scope of the flatness of the curve, as well as the maximum value, the minimum value.
7) Host controller power supply:AC220VOr12VCar power supply
8) Dimensions: (lengthX height x widthmm)
4061X800x600 elongation:4061mmLength:2750 mm。
9) Instruments: about230Kg。
10) Can be human or vehicle traction, minimum turning radius5 mDetection speed appropriate to6-8 km/hMaximum speed does not exceed12km/h。 Non-inspection of (shortened, measuring wheels hanging) film speed under (25 km/h).
III. Structure
This roughness instrument made up of mechanical and electrical parts. Electrical parts for wireless data acquisition devices and host controllers. Shipped in the box are placed in the main controller. When placed on the rack to remove the wireless data collector. Host controllers using your car12Vpower supply, Laboratory Assistant, when in operation.
1)Mechanical structure (see below)
Mechanical part consists of the following parts;
1、Tractor parts: made up of connector plug with the lever through the nut is attached to the front axle.
2,The front axle.
3、Wheels: pneumatic tires from eight forms of motorcycle wheel of composition before and after.
6、Main frame: includes retractable square tubular structure, rear rack, guide, and so on.
7、Measuring wheel: by compression springs and lifting mechanism, rubber wheels, distance sensors.
8、Rear axle.
2)Electrical parts
Wireless data acquisition systemNXPIndustrial gradeMCU,4Liquid crystal display, completed milestones and displacement data sampling. Internal high-precision24-bit σ-δADconverters, displacement measurement precision. Wireless capture through a plug attached to the displacement sensor and distance sensors. Wireless data acquisition system using RF wireless communication with the host controller, operating frequency and works inISMfrequency band. Whole machine low-power design,4-cell battery can continuous working15-20hours, complete100-150Kmmeasurements.
Host controllerARMKernel-Inligent LCD screen,7Inch large screen, touch design. Main control panel uses aARM-M3kernel32-bit processor, powerful, user friendly. Ability to perform complex data management, graph display, calculations and other functions.
Main controller simplified to only the power switch, a printer and a thermal Panel LCD screen,12VPower external, all Chinese operating interface, or tips, and easy operation.
IV. Instrument operation
1)Ready to work
a.Remove data collectors, as required, mount4Nanfu alkaline batteries, plug on the rack to the collector. Online collector antenna broke off, the antenna perpendicular to the collector display plane . The collector is placed on the rack.
b.Use rack to the measurement point starting point, loosen the locking bolt, pull the rack in place to measure State, locking bolt. Rack and tow bar and trailer connected. Put down the measuring wheel.
c.Power on the data acquisition, press the switch key, switch the display to the current offset value. Through2set screw to adjust the displacement sensor of high and low, to show values for20±2mm.
d.Cleaning test pavement.
e.Screw the master antenna antenna plug in Panel positions, adsorption of the antenna inside the vehicle (or Panel) somewhere out there, as far as possible ensure that the antenna is high and open position.
f.The primary voltage plug into the car cigarette lighter, the car (the car will pull low voltage causing controller restart, so be sure to start the car, then open host controller power supply).
2)Input parameters
Power on the primary controller, press the "menu" button, select "test parameters", enter a test number, test time, the road, the starting mileage, piles, limit value for the variance, direction and other parameters. Each input has been completed, press the "" key to save and automatically moves the input box down on a project. Input is complete, press the "Confirm Save" button, the "back" key to return to the measuring interface. Input error, you can press the "" key to delete.
Host controller on the left show the current offset value is20± 2mm,Description measuring wheel is in place. Displayed on the top right battery. Right corner shows the current state "measure to stop", then the address normal, the system is in the standby state.
3) Started testing
Tractor up one notch starting idling. When walking to the measuring point, press the "test" button, begin testing. Remain speed driving stability, travelling along the established mark, may not rush to speed up result in loss of data sampling. When near the measurement end, first press the "stop" key, then slowly brake and stop. Interval data measuring a completed per measurement, test results are automatically saved. If you set the automatic printing, it will automatically print the output.
4) End of the test
After the end of the test, remember to power off the wireless data acquisition system, unplug it, the collector into the main control box. If a long time after no, be sure to remove the batteries for wireless data acquisition, in case of battery leakage. Then, rack up, lock bolt, and to stop measuring wheel.
Note: data collector failures due to battery leakage is not covered under warranty; using alkaline batteries can better avoid battery leakage.
5) Data viewing and printing
Press the "menu" button, select "data management" and enter historical data management pages. The page according to the classification of each test displays the test information for the group. All test information in accordance with the order. The same test number test, with continuous testing and storage location is retrieved, saved as a test. Select the corresponding test, you can read the details, or bulk print test results as a whole.
Press the "read the record" button, you can display the group to test all test data. Curve is below1Kmin the flatness of the curve. Lower right side shows1Kmflatness within the maximum and minimum values. If the test set of length more than1Km, you can use the "page forward" "page back" keys going back and forth. "Clean print" and "detail print" used to print the output of the set of test data. The difference is that compact print output only English character codes, no characters output, you can save paper. More print to print, output for Chinese characters, clear and detailed.
The printer is24Characters wide thermal printer, when replacing the paper roll, pressing the printer "Open"Button, pop-up panels, follow diagram instructions to replace paper.
6) Memory management
Press the "menu" button, select "memory management", you can view the current memory usage. 100mfor a measurement range, the instrument can store1000measurement range test data, a total of100Km. When you delete a data record, not as a record to delete, can only be deleted in accordance with regional. Select by pressing need to delete the memory cell area, click on the "bulk delete" key, you can delete the selected memory.
7) System settings
a.How to print------ Automatic printing/ Manual printing. When set to automatically print, every100mof measurement, the printer will automatically output the test results. When set to manual when you print, the printer does not automatically print. Users can via the main menu in the "print" function of output current test results.
b.Print content----- Streamlined content/ Detailed content. When content is set to streamline, the printout for English characters, use symbols instead of the items, you can conserve paper. When setting up the details, the printout is Chinese for more content. This project is only valid for testing process automatically or manually printed, print operation for data management interface, this setting has no effect.
c.Formatting the memory------ Press the key, enter format memory interface. This operation can quickly1000storage units were empty. Users to exercise caution.
d.Touch screen calibration----- Press the key, enter the touch screen calibration interface. After entering the calibration interface, follow the instructions on the screen. Noteworthy was that once inside the touch screen calibration interface, must be the correct operation and complete, otherwise, error free to the calibration will save the content to the LCD, after the next power on can result in compley unable to use the touch screen, and may again enter the calibration status is raised.
8) Offset calibration
Before this instrument factory, have been found by the standard displacement gauge block calibration. But a year later, once again the calibration to ensure its accuracy. Displacement sensor calibration, calibration on the wireless data acquisition system requirements. Before calibration, remove the sensor, to be installed on a fixed support, guarantee the bottom vertical displacement sensor and bracket. Displacement sensor plug is inserted into the data collectors, and power on the data collector.
Step1.adjust the height of the displacement sensor, sensor3tick marks showed exactly the sensor coat.
Step2.press the data collector "switch" key for5seconds, enter the offset calibration status. Displacement sampling the original values and the calibration point "0" flashes back and forth between switches.
Step3.press the "store" button, the values in the current zero point.
Step4. thedisplacement sensor pad underthe 5mmstandard of gauge blocks, and then pressing the "switch" button, to switch the calibration points to5mm. At this point, the flashing LCD display the current value and the original sample "05". Press the "Save" button,5mmcorresponds to deposit.
Step5.the withdrawal ofthe 5mmstandard of gauge blocks, and replaced withthe 10MMstandard of gauge blocks, and then pressing the "switch" button, to switch the calibration points to10MM, flashing LCD display the current value and the original sample "10"。 Press the "Save" button,0mmcorresponds to deposit.
Step6.repeat the above steps until you15mm,20mm,25mm,30mm,35mm,40mmPoints correction values are saved to.
Step7.power down the instrument and power the system back on. Tap "switch", when the instantaneous displacement of the LCD displays the current absolute values, you can test the displacement value, does meet the standards required.
When an operational error, and you can repeat the previous steps, overwrite error data will be overwritten.
IV. Instrument care and maintenance
1) Operational considerations
a.Transportation, steering, parking and other non-measuring State, measuring wheel suspension, to avoid unnecessary wear and tear and a collision, causing the sensor reduced life expectancy.
b.Test speed must be in10kmOr less. Bad road conditions, test speed should be slowed down, so as not to bump the rack too large affect measurement accuracy. As the instrument speed is lagging, when instruments detected speed is greater than8Km/hShi, instrument overspeed alarm will be issued. Short-distance transport, vehicle traction can be used, but must lock the rack, measuring wheels and suspension, traction speed is not greater than25Km/h.
c.Test is complete, be sure to remember to power off the wireless data acquisition system, so that the battery runs out.
d.Do not use for a long time, you must remove the collection within the battery, battery leakage was substantially damaged capture circuit board. Failures due to battery leakage do not included in the reservation. Using high-energy alkaline cells could effectively prevent battery leakage. Recommended battery: nanfu shaped ring, DuracellMX1500, DuracellMN1500, SuperGP 1, EnergizerE91, double deer new century energies, Wan sheng MAXELL LR6 。 Please pay attention to the battery under voltage of the collector indicates battery indicator or the master controller, when the battery is low, replace the batteries immediay, low battery will cause measurement error.
e.Sensor, the collector, control boxes and other electronic parts absoluy to avoid rain, damp, and so on.
f.Rack bearing, steering mechanism and other moving parts to each6Months raise a lubricant to prevent wear and rust. Before use to check whether the bolts fastening.
g.Wear can affect the measurement accuracy of the measuring wheel, instruments using more than2Years later, depending on wear replace measuring wheel. Standard measuring wheel diameter for160mm. Rubber hardnessHA(55-70).
h. When shorten communication distance (2-5M), or compley unable to communicate, may be the radio antenna is damaged, please check the antenna connector, is dropped.
2) Common failure and troubleshooting
a.Printer will not print. Open the main controller Panel, check the printer data cable and the power cord is loose.
b.Traffic is not reliable. Communication distance is too far, the host controller and wireless data acquisition device is within sight distance range, communications antennas for damage, broken.
c.Test results that were significantly large deviation, check whether the measuring wheel spring loose, transport wheels, rack has become loose. Displacement sensors need to be aligned, or the battery is low.
d.Lines, no change on the primary controller, deviations. Displacement sensor plug is loose.
e.Host controller panics. Emergencies outside interference, power back up.