CN101629895A - Digitizing automatic calibration device applied to runway surface friction coefficient testing car - Google Patents
Digitizing automatic calibration device applied to runway surface friction coefficient testing car Download PDFInfo
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- CN101629895A CN101629895A CN200910070165A CN200910070165A CN101629895A CN 101629895 A CN101629895 A CN 101629895A CN 200910070165 A CN200910070165 A CN 200910070165A CN 200910070165 A CN200910070165 A CN 200910070165A CN 101629895 A CN101629895 A CN 101629895A
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- friction coefficient
- force sensor
- surface friction
- coefficient testing
- runway surface
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Abstract
The invention discloses a digitizing automatic calibration device applied to a runway surface friction coefficient testing car, relating to calibration of a friction coefficient testing device. The calibration device is composed of a mechanical device, a control device and an onboard power supply, wherein the mechanical device is divided into an actuating mechanism and a support structure, wherein the actuating mechanism is composed of a motor-driven push rod and a pallet, and the support structure is composed of a roller wheel and a support; the control device is composed of a horizontal force sensor, a vertical force sensor, a conditioning circuit, a singlechip, a nixie tube display unit, a wireless remote controller and a control panel, i.e., a wireless remote transmitter. The calibration device carries out sampling, processing, displaying and control by a computer, and the precision of the calibration device completely satisfies the precision requirements of the runway surface friction coefficient testing car, thereby overcoming the disadvantages that a manual calibration method causes artificial reading errors, the precision grade of the calibration device or equipment is low and the operation of the whole calibration process is complex.
Description
Technical field
Technical scheme of the present invention relates to the demarcation of testing device for friction coefficient, specifically is applied to the digitizing automatic calibration device of runway surface friction coefficient testing car.
Background technology
At present, be applied to the still backward artificial demarcation mode of caliberating device of the vehicular road face friction coefficient testing car on airport, promptly adopt pointer spring balance indicating value playback mode, this mode can cause artificial reading error, and then caused the reduction of The measuring precision, and spring balance returns zero inaccurately, and poor repeatability is big, and the accuracy class ratio sensor of caliberating device or calibration facility itself is also low.Simultaneously, the whole calibrating procedure trivial operations, timing signal needs the number people to operate together.In addition, invent, do not find to be specifically applied to the digitizing automatic calibration device of runway surface friction coefficient testing car from all kinds of caliberating devices of present announcement.
Summary of the invention
Technical matters to be solved by this invention is: the digitizing automatic calibration device that is applied to runway surface friction coefficient testing car is provided, this device is by computer sampling, processing, demonstration and control, its precision satisfies the accuracy requirement of runway surface friction coefficient testing car caliberating device fully, has overcome the shortcoming of the low and whole calibrating procedure trivial operations of accuracy class that artificial demarcation mode can cause artificial reading error, caliberating device or calibration facility.
The present invention solves this technical problem the technical scheme that is adopted: the digitizing automatic calibration device that is applied to runway surface friction coefficient testing car, it is to be made of mechanical hook-up, control device and vehicle power, wherein mechanical hook-up is divided into topworks and supporting structure two parts, wherein topworks is made of electric pushrod and pallet, and supporting structure is configured to propping up by roller; Control device is that wireless remote control emitter constitutes by horizontal force sensor, vertical force sensor, modulate circuit, single-chip microcomputer, charactron display unit, wireless remote controlled receiver and control panel, and described vertical force sensor has three; This connected mode that is applied to each component part in the digitizing automatic calibration device of runway surface friction coefficient testing car is: vehicle power is connected in mechanical hook-up and control device, and the single-chip microcomputer of control device by wherein carries out program circuit control to the topworks of mechanical hook-up; The connected mode of the partial component in mechanical hook-up and the control device is: three vertical force sensors are installed in the bottom of whole calibrating device, the horizontal force sensor is installed in an end of support, the other end of horizontal force sensor is connecting electric pushrod, the other end of electric pushrod is connecting pallet, on the disk body of pallet He on the support roller is installed all, being connected and fixed of all these members all is to adopt general securing member to be connected and fixed; The connected mode of the component parts in the control device is: the horizontal force sensor is connected with modulate circuit respectively with the vertical force sensor, modulate circuit is connected to single-chip microcomputer again, single-chip microcomputer is connected to charactron display unit and wireless remote controlled receiver again, and wireless remote controlled receiver then is connected with control panel; Single-chip microcomputer in the control device to the program circuit that the topworks of mechanical hook-up controls is:
The above-mentioned digitizing automatic calibration device that is applied to runway surface friction coefficient testing car, described vehicle power are the storage battery of 12V.
The above-mentioned digitizing automatic calibration device that is applied to runway surface friction coefficient testing car, described single-chip microcomputer are the C8051F020 single-chip microcomputers.
The above-mentioned digitizing automatic calibration device that is applied to runway surface friction coefficient testing car, described charactron display unit adopts highlighted LED charactron.
In the above-mentioned digitizing automatic calibration device that is applied to runway surface friction coefficient testing car, vehicle power, horizontal force sensor, vertical force sensor, modulate circuit, wireless remote controlled receiver, control panel and electric pushrod all are known components and parts.
The invention has the beneficial effects as follows: the digitizing automatic calibration device that the present invention is applied to runway surface friction coefficient testing car has overcome many shortcomings that the manual measurement demarcation mode of vehicular road, existing airport face equipment of friction coefficient tester exists.Imbody is as follows:
(1) the present invention is applied to the digitizing automatic calibration device of runway surface friction coefficient testing car by computer sampling, processing, demonstration and control, its precision satisfies the accuracy requirement of friction coefficient testing car fully, having overcome vehicular road, existing airport face equipment of friction coefficient tester adopts pointer spring balance indicating value playback mode to cause artificial reading error, and then caused the reduction of The measuring precision, and spring balance returns zero inaccurately and poor repeatability is big, causes the also low shortcoming of accuracy class ratio sensor of caliberating device itself.
(2) control panel of caliberating device of the present invention adopts the hand-hold wireless remote control transmitter, calibration process only needs just can disposablely to finish by the handheld keyboard operation, make easy to operate, overcome the whole calibrating procedure trivial operations of existing artificial caliberating device, the shortcoming that timing signal needs the number people to operate together.
(3) caliberating device of the present invention uses electric pushrod to connect pallet as topworks, and dependable performance is active in one's movements, and operates steadily.
(4) the charactron display unit of caliberating device of the present invention uses highlighted LED charactron, shows stable, clear.
(5) caliberating device of the present invention uses the vehicle power power supply, without external power supply, makes things convenient for field work.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the main assembly structured flowchart of caliberating device of the present invention.
Fig. 2 is the mechanical hook-up and the interconnective synoptic diagram of the partial component in the control device of caliberating device of the present invention.
Fig. 3 is the composition structured flowchart of the control device part of caliberating device of the present invention.
Fig. 4 is the composition structured flowchart of the mechanical hook-up part of caliberating device of the present invention.
Fig. 5 is the control panel synoptic diagram of caliberating device of the present invention.
Fig. 6 is the control program process flow diagram of the single-chip microcomputer in the control device of caliberating device of the present invention.
Among the figure, 1. electric pushrod, 2. roller, 3. pallet, 4. support, 5. vertical force sensor, 6. horizontal force sensor, the A. horizontal force is measured key, B. vertical force measurement key, the C. forward key, D. retreats button.
Embodiment
Among the embodiment shown in Figure 1, the digitizing automatic calibration device that the present invention is applied to runway surface friction coefficient testing car is made of mechanical hook-up, control device and vehicle power, vehicle power is connected in mechanical hook-up and control device, control device by wherein single-chip microcomputer and the topworks of mechanical hook-up get in touch, control device mainly comprises horizontal force sensor, vertical force sensor and single-chip microcomputer.Vehicle power is the storage battery of 12V.
Among the embodiment shown in Figure 2, the present invention is applied to the mechanical hook-up of digitizing automatic calibration device of runway surface friction coefficient testing car and the effect of interconnective mode of the partial component in the control device and each several part is such: three vertical force sensors 5 are installed in the bottom of this caliberating device, three stressed strong points as the whole calibrating device, horizontal force sensor 6 is installed in an end of the support 4 of caliberating device, the other end of horizontal force sensor 6 is connecting electric pushrod 1, the other end of electric pushrod 1 is connecting pallet 3, when vertical force sensor 5 and horizontal force sensor 6 to runway surface friction coefficient testing car itself carry out timing signal, measuring wheel on the runway surface friction coefficient testing car is placed in the pallet 3, on pallet 3 disk bodies He on the support 4 roller 2 is installed all, to help moving of pallet 3 like this, being connected and fixed of all these members all is to adopt general securing member to be connected and fixed.When the measuring wheel of the runway surface friction coefficient testing car of being demarcated is fallen in the pallet 3, at first vertical force sensor 5 measures the size of vertical force, after the downward pressure at right angle of measuring wheel reaches regulation numerical value, then the topworks of the Single-chip Controlling mechanical hook-up of control device by wherein starts working, that is: electric pushrod 1 starts drag pallet 3 and moves horizontally on support 4, because electric pushrod 1 other end is connecting horizontal force sensor 6, detect the size of horizontal pull thus, vertical force that measures and horizontal pull numerical value are sent to the single-chip microcomputer of control device, carry out subsequent treatment.
Among the embodiment shown in Figure 3, the control device that the present invention is applied to the digitizing automatic calibration device of runway surface friction coefficient testing car is that wireless remote control emitter constitutes by horizontal force sensor, vertical force sensor, modulate circuit, single-chip microcomputer, charactron display unit, wireless remote controlled receiver and control panel, and described vertical force sensor has three; Wherein the horizontal force sensor is connected with modulate circuit respectively with the vertical force sensor, and modulate circuit is connected to single-chip microcomputer again, and single-chip microcomputer is connected to charactron display unit and wireless remote controlled receiver again, and wireless remote controlled receiver then is connected with control panel.Wherein single-chip microcomputer adopts the C8051F020 single-chip microcomputer, horizontal force sensor and vertical force sensor are purchased from Tianjin Vishay Celtron Science and Technology Ltd., modulate circuit is seen " telemetry circuit " book of publishing from China Machine Press, the charactron display unit adopts highlighted LED charactron, and the control panel of wireless remote controlled receiver and employing hand-hold wireless remote control transmitter is produced than subfamily skill company limited by Shenzhen's enlightening.The inner 12V powered battery that adopts of control panel, other ingredients are all powered by the vehicle power of 12V.When control device of the present invention is worked, horizontal force sensor and vertical force sensor convert power to electric signal, output to modulate circuit, the effect of modulate circuit is that the faint small-signal that comes from sensor is amplified, remove the undesired signal of coming in of mixing simultaneously, the signal of modulate circuit output is delivered to the C8051F020 single-chip microcomputer and is carried out analyzing and processing, in addition, wireless remote controlled receiver is passed through in the order of control panel, be sent to the C8051F020 single-chip microcomputer, this single-chip microcomputer obtains handling computing accordingly after the order of the data of horizontal force sensor and vertical force sensor and control panel, and give topworks's transmitting control commands of mechanical hook-up, simultaneously measurement data is sent to the charactron display unit and show.
Among the embodiment shown in Figure 4, the present invention is applied to mechanical hook-up topworks and supporting structure two parts of the digitizing automatic calibration device of runway surface friction coefficient testing car and forms, wherein topworks is made of electric pushrod and pallet, and supporting structure is configured to propping up by roller.
Among the embodiment shown in Figure 5, the control panel that the present invention is applied to the digitizing automatic calibration device of runway surface friction coefficient testing car shows that being provided with horizontal force measures key A, vertical force measurement key B, forward key C and retreat button D.Press forward key C, electric pushrod 1 advances, and presses forward key C once more, and electric pushrod 1 stops; Press and retreat button D, electric pushrod 1 retreats, and presses D once more, and electric pushrod 1 stops; Press vertical force measurement key B, the beginning vertical force measurement is pressed vertical force measurement key B once more, stops to measure, and will press vertical force measurement key B earlier during operation, and then the wheel that falls; Press horizontal force and measure key A, begin to measure first value, during to 20KG, motor stops automatically, if this moment, displayed value was less than 20KG, can press and retreat button D, motor can be adjusted to 20KG automatically, stops then, press horizontal force once more and measure key A, begin to measure second value, during to 70KG, motor stops automatically, if this moment, displayed value was less than 70KG, can press and retreat button D, can so repeatedly adjust, motor can be adjusted to 70KG automatically, stop then, press horizontal force for the third time and measure key A, motor retreats 2 seconds, measures and finishes.Will note falling in operating process begins behind the wheel to measure again, if having unusually, begins after can restarting to measure again.
Among the embodiment shown in Figure 6, the single-chip microcomputer that the present invention is applied in the control device of digitizing automatic calibration device of runway surface friction coefficient testing car to the program circuit that the topworks of mechanical hook-up controls is:
The digitizing automatic calibration device that applies the present invention to runway surface friction coefficient testing car lie in a horizontal plane in the airfield pavement friction factor car of being demarcated testing wheel under.At first carrying out the vertical force sensor 5 of this caliberating device demarcates: press the vertical force measurement key B on this caliberating device control panel earlier, on the touch-screen of the host computer of runway surface friction coefficient testing car, select " vertical calibrating " option then, and select 90 kilograms of vertical forces to demarcate, the testing wheel of airfield pavement friction factor car begins the wheel that falls, and be pressed onto on the pallet 3 of this caliberating device, this moment, this caliberating device charactron display unit showed current kilogram value, and be input to as actual value in the host computer of airfield pavement friction factor car with this value, carry out vertical force sensor 5 and correct.Carry out a vertical force of 140 kilograms again with same method repetitive operation and demarcate, and this value is input to the host computer of airfield pavement friction factor car, the vertical force sensor 5 of this caliberating device is demarcated and is finished immediately.Next carries out the horizontal force sensor 6 of this caliberating device and demarcates: select " level demarcation " option earlier on the host computer touch-screen of runway surface friction coefficient testing car, this moment, the measuring wheel of airfield pavement friction factor car began to fall, be pressed onto on the pallet 3 of caliberating device, and produce 140 kilograms downward vertical force, the horizontal force of pressing then on this caliberating device control panel is measured key A, this moment, the gear train of this caliberating device was started working, it is electric pushrod 1 pulling pallet 3, electric pushrod 1 stops to move automatically when the charactron display unit is shown to 20 kilograms, click the acknowledgement key of 20 kilograms of horizontal pulls on the airfield pavement friction factor car host computer touch-screen this moment, and then the horizontal force of pressing on the caliberating device control panel is measured key A, the gear train of this caliberating device works on, electric pushrod 1 quits work automatically when detecting 70 kilograms of pulling force, and press 70 kilograms of horizontal force pulling force acknowledgement keys on the airfield pavement friction factor car host computer touch-screen once more, so far the horizontal force sensor 6 of this caliberating device is demarcated and is finished.The support 4 of caliberating device plays the fixedly function of each parts of caliberating device, and roller 2 makes things convenient for moving of whole calibrating device and pallet 3.
In the foregoing description, vehicle power, control panel and electric pushrod all are known components and parts.
Claims (4)
1. be applied to the digitizing automatic calibration device of runway surface friction coefficient testing car, it is characterized in that: it is to be made of mechanical hook-up, control device and vehicle power, wherein mechanical hook-up is divided into topworks and supporting structure two parts, wherein topworks is made of electric pushrod and pallet, and supporting structure is configured to propping up by roller; Control device is that wireless remote control emitter constitutes by horizontal force sensor, vertical force sensor, modulate circuit, single-chip microcomputer, charactron display unit, wireless remote controlled receiver and control panel, and described vertical force sensor has three; This connected mode that is applied to each component part in the digitizing automatic calibration device of runway surface friction coefficient testing car is: vehicle power is connected in mechanical hook-up and control device, and the single-chip microcomputer of control device by wherein carries out program circuit control to the topworks of mechanical hook-up; The connected mode of the partial component in mechanical hook-up and the control device is: three vertical force sensors are installed in the bottom of whole calibrating device, the horizontal force sensor is installed in an end of support, the other end of horizontal force sensor is connecting electric pushrod, the other end of electric pushrod is connecting pallet, on the disk body of pallet He on the support roller is installed all, being connected and fixed of all these members all is to adopt general securing member to be connected and fixed; The connected mode of the component parts in the control device is: the horizontal force sensor is connected with modulate circuit respectively with the vertical force sensor, modulate circuit is connected to single-chip microcomputer again, single-chip microcomputer is connected to charactron display unit and wireless remote controlled receiver again, and wireless remote controlled receiver then is connected with control panel; Single-chip microcomputer in the control device to the program circuit that the topworks of mechanical hook-up controls is:
2. according to the described digitizing automatic calibration device that is applied to runway surface friction coefficient testing car of claim 1, it is characterized in that: described vehicle power is the storage battery of 12V.
3. according to the described digitizing automatic calibration device that is applied to runway surface friction coefficient testing car of claim 1, it is characterized in that: described single-chip microcomputer is the C8051F020 single-chip microcomputer.
4. according to the described digitizing automatic calibration device that is applied to runway surface friction coefficient testing car of claim 1, it is characterized in that: described charactron display unit adopts highlighted LED charactron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910070165A CN101629895A (en) | 2009-08-19 | 2009-08-19 | Digitizing automatic calibration device applied to runway surface friction coefficient testing car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910070165A CN101629895A (en) | 2009-08-19 | 2009-08-19 | Digitizing automatic calibration device applied to runway surface friction coefficient testing car |
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| CN101629895A true CN101629895A (en) | 2010-01-20 |
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| CN200910070165A Pending CN101629895A (en) | 2009-08-19 | 2009-08-19 | Digitizing automatic calibration device applied to runway surface friction coefficient testing car |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668682A (en) * | 2018-04-30 | 2019-04-23 | 交通运输部公路科学研究所 | A kind of side-friction calibrating installation and calibration method |
| CN113434954A (en) * | 2021-06-15 | 2021-09-24 | 同济大学 | Calibration method of vibrating type pavement flatness test vehicle |
| CN114624178A (en) * | 2022-05-03 | 2022-06-14 | 兴威航空科技(扬州)有限公司 | Airport runway friction testing device |
-
2009
- 2009-08-19 CN CN200910070165A patent/CN101629895A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668682A (en) * | 2018-04-30 | 2019-04-23 | 交通运输部公路科学研究所 | A kind of side-friction calibrating installation and calibration method |
| CN113434954A (en) * | 2021-06-15 | 2021-09-24 | 同济大学 | Calibration method of vibrating type pavement flatness test vehicle |
| CN113434954B (en) * | 2021-06-15 | 2022-09-20 | 同济大学 | Calibration method of vibrating type pavement flatness test vehicle |
| CN114624178A (en) * | 2022-05-03 | 2022-06-14 | 兴威航空科技(扬州)有限公司 | Airport runway friction testing device |
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Open date: 20100120 |