CN2404097Y

CN2404097Y - Portable tranverse abrasion charged remote sensing instrument

Info

Publication number: CN2404097Y
Application number: CN 99244590
Authority: CN
Inventors: 徐立德; 李桂芹
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-09-17
Filing date: 1999-09-17
Publication date: 2000-11-01
Anticipated expiration: 2009-09-17

Abstract

The utility model is especially designed for the abrasion measurement of conducting wires of contact systems of electrified railways. The utility model can carry out high-voltage charged non-contact measurement on the abrasion of conducting wires while the utility model is free from limitation of time, sections, and areas. Measurement can be optionally planned through using intervals in train operation for the good protection of train operation. The utility model has the advantage of safety. The utility model is an integrated high and new technology product with the integration of light, machines, electricity, single chip computer, CCD imaging, and infrared data communication. The utility model has the advantages of high measuring precision, strong capability of interference rejection, low power consumption, light weight and portability for the entire machine, simple operation, visual display, etc. The utility model solves a series of problems which are existent for a long time, wherein, the problems are caused by that power cut is required to be carried out manually for measurement.

Description

The charged telegauge of portable lead abrasion

The utility model belongs to a kind of proving installation, the charged telegauge of particularly a kind of portable lead abrasion.

Charged detection lead abrasion is the long-term unsolved important topic of electric railway, also is the difficult point in each test item of contact net system.Look into newly through scientific and technical information department of Ministry of Railways science and technology and to recognize, domestic and international at present state of development in this respect mainly contains following two kinds of detection modes: 1, inspection vehicle is measured: mainly based on import, China starts late on the one hand at this, technical still immature, still, also there is a certain distance, because the external inspection vehicle lead abrasion measuring equipment of introducing costs an arm and a leg apart from practical application in testing laboratory's stage, complex structure is difficult to penetration and promotion and uses; 2, manually use kind of calliper: China mainly adopts this kind method at present, but because labour intensity is big, sense cycle is long, image data is few, can not reflect the abrasion situation of lead fully, is difficult to adapt to the needs of electric railway high speed development.

The purpose of this utility model is to design the charged telegauge of a kind of portable lead abrasion, it is light harvesting, electricity, machine integrated technology and constitute, can be with electrification in high voltage non-cpntact measurement lead abrasion, it is a kind of restriction that is not subjected to time, location, area, can arrange arbitrarily to measure, safe and reliable, simple to operate pick-up unit.

The technical solution of the utility model: the charged telegauge of a kind of portable lead abrasion is characterized in that it is made up of optical texture, circuit structure and physical construction; Said optical texture comprises illuminator and imaging system, constituted by light source, Guang Lan, object lens I, catoptron I, catoptron II, object lens II and CCD electrooptical device, wherein light source, light hurdle and object lens I constitute source of parallel light, catoptron I is set on its parallel light path, catoptron I and parallel light path angle at 45, the relative measured object of catoptron II with catoptron I axisymmetricly, the parallel light path that catoptron II reflects images in the CCD electrooptical device according to object lens II; Said circuit structure is made up of radiating portion and acceptance division branch, radiating portion comprises the CCD driving circuit, the characteristic information treatment circuit, modulation transmitter and stable-power power-supply and general supply, the output termination characteristic information treatment circuit of CCD driving circuit, the output termination modulation transmitter of characteristic information treatment circuit, general supply is connected to stable-power power-supply respectively, the CCD driving circuit, characteristic information treatment circuit and modulation transmitter, the illuminator of the output termination opticator of stable-power power-supply, receiving unit comprises infrared receiving circuit, photoelectric switching circuit, demodulator circuit, single-chip microcomputer, digital display circuit, power supply and keyboard, the output termination photoelectric switching circuit of infrared receiving circuit, the output termination demodulator circuit of photoelectric switching circuit, the output terminal of demodulator circuit connects single-chip microcomputer, the output termination digital display circuit of single-chip microcomputer, power supply is connected to infrared receiving circuit respectively, photoelectric switching circuit, demodulator circuit, single-chip microcomputer and digital display circuit, the input end of keyboard connects single-chip microcomputer; Said physical construction comprises the hand-held casing, and the groove that folds up tested lead is arranged on the cabinet, and the groove both sides are the two-mirror of imaging system in the optical texture.

The characteristic information treatment circuit of radiating portion is made of binarization circuit and phase inverter in the above-mentioned said circuit structure, the input end of the output termination phase inverter of binarization circuit.

The modulation transmitter of radiating portion is made of modulation circuit, oscillator, driving circuit, infrared emission circuit in the above-mentioned said circuit structure, the output terminal of oscillator and characteristic information treatment circuit is connected in the input end of modulation circuit, the output termination driving circuit of modulation circuit, the output termination infrared emission circuit of driving circuit.

Principle of work of the present utility model and using method

(1) principle of work: this instrument sampling is finished by optical system.The effect of optical system is that tested lead is imaged on the CCD photosurface.Lamp optical system produces a branch of uniform directional light, makes measured object obtain illumination uniformly, because measured object is right cylinder, illumination interface diffuse reflection is arranged, and can cause obscure boundary and influences image quality.This device has adopted effect cola lighting system preferably, has overcome the veiling glare interference effectively, has guaranteed illuminating effect.Imaging optical system very is imaged on the CCD photosurface video of measured object clearly, designs the optical system enlargement factor as required, so that the picture of measured object can be complementary with the size that CCD fixes, and guarantees the resolution and the illumination of needs.In order to eliminate the influence of error of focusing to measurement result, image-forming objective lens adopts the object space telecentric beam path, has improved measuring accuracy greatly.Ccd array is the sensitive element of system, cooperate optical system can be become the pulse signal of certain width by the size of measured object, because measured object and background strong variations on light intensity, being reflected in pairing dimension of picture boundary in the CCD vision signal has significantly rapid level and changes, by binary conversion treatment dimension of picture part in the CCD vision signal is separated into binary plane with background parts, method is to adopt voltage comparator, formation has the pulse signal of certain width, the size of the corresponding measurand of this pulse width.To handle through binarization circuit, the signal that carries characteristic information is modulated on the carrier frequency of transmitter to be launched.The receiver on ground is converted to electric signal by photosensitive device with the light signal that receives, and through demodulation, the original information of recovery, is calculated the height and the percentage of wear of lead at last by single-chip microcomputer, is directly shown by the form of display with numeral.

(2) using method: 1, at first will install with insulating bar and be connected firmly, and press power switch, pilot lamp is bright, and it is hung on the tested lead, gently hold insulating bar, makes it sagging naturally, with the power supply opening of receiver, should show HELP then.2, show H110 (or H120 etc.) by the model key, represent the cross section specifications and models of tested osculatory, the infrared receiver hole of receiver is aimed at emitting head, pin dimension key and show 4-digit number, represent that the height of tested osculatory, unit are one of percentage millimeter; Under the more stable situation of video data, gently hold insulating bar, it is slowly rotated in the direction perpendicular to lead, video data changes to some extent, illustrate that lead has eccentric wear, unclamp dimension key this moment, shows the minimum residual height (minimum value that show this moment is represented to be pressed to minimum value during lifting from dimension key) of tested osculatory automatically.3, press the % key and show Pxxx, the percentage of expression osculatory abrasion, unit is a per mille.4, when demonstration 8888 or----, the expression measurement result exceeds measurement range, will install and move a upper/lower positions forwards, backwards, the device gauge head is abutted against on the dropper, seek the optimum position and survey again, if still undesired, illustrate that then that attachment or instrument work are arranged on the lead is undesired.5, as receiver demonstration L---, when not working, the gauge head pilot lamp represents that battery separately is under-voltage, should charge; Also can judge whether battery needs charging with the method for multimeter measuring voltage.

Superiority of the present utility model and technique effect: 1, electrification in high voltage non-contact testing lead mill line, safe and reliable, be not subjected to the restriction in time, location, area, utilize the interval of train operation to carry out the driving protection, can arrange arbitrarily; Multinomial new and high technologies such as 2, imaging of this product light harvesting and CCD image processing, infrared data transmission, single-chip microcomputer have the measuring accuracy height in one, and antijamming capability is strong, and is low in energy consumption, and complete machine is in light weight, is easy to carry, and is simple to operate, advantages such as intuitive display; 3, adopt linear CCD technology to measure the residual height of osculatory, avoided residual institute of survey osculatory bring many unfavorable factors, make test easy accurately; 4, higher performance is arranged, tally with the national condition, be specially adapted to unit of operation, apply easily; 5, this survey instrument has been saved manpower and materials than the method for manual detection, saved a large amount of funds than the method that inspection vehicle detects, for being revised as status modifier from the original cycle, the contact net maintenance provides the reliable firsthand data, so promptly guarantee the safe operation of contact net, saved a large amount of recondition expenses and maintainer again; 6, on probation at plump power-feed section by the scene more than half a year, 1450 points have been measured, average error is 0.023 millimeter, it is safe, reliable, light, inexpensive, easy to operate that instrument reaches, meet the electrometric designing requirement of high pressure zone, its reliability, repeatability, precision etc. have all reached technical requirement, and the success of this instrument development has great economic implications and social effect to the China railways cause.

Below in conjunction with drawings and Examples explanation present technique.

Fig. 1 is the optical texture synoptic diagram of the charged telegauge of the related portable lead abrasion of the utility model.

(wherein: Fig. 2-a is the radiating portion theory diagram to Fig. 2 for the circuit structure theory diagram of the charged telegauge of the related portable lead abrasion of the utility model; Fig. 2-b is the receiving unit theory diagram; Fig. 2-c is the modulation circuit theory diagram of radiating portion; Fig. 2-d is the theory diagram of the characteristic information treatment circuit of radiating portion).

Fig. 3 is the physical construction synoptic diagram of the charged telegauge of the related portable lead abrasion of the utility model.

Wherein: 1 is light source, and 2 is the light hurdle, and 3 is object lens I, and 4 is catoptron I, and 5 is measured object, 6 is catoptron II, and 7 is object lens II, and 8 is CCD device (photoelectric conversion device), and 9 is casing, and 10 is handle, 11 is groove, and 12 is lead, and 13 is power supply, and 14 is plane mirror.

Embodiment:

The charged telegauge of a kind of portable lead abrasion (seeing Fig. 1-3) is characterized in that it is made up of optical texture, circuit structure and physical construction; Said optical texture (see figure 1) comprises illuminator and imaging system, constituted by light source 1, light hurdle 2, object lens I3, catoptron I4, catoptron II6, object lens II7 and CCD electrooptical device 8, wherein light source 1, light hurdle 2 constitute source of parallel light with object lens I3, catoptron I4 is set on its parallel light path, catoptron I4 and parallel light path angle at 45, the relative measured object 5 of catoptron II6 with catoptron I4 axisymmetricly, the parallel light path that catoptron II6 reflects images in CCD electrooptical device 8 according to object lens II7; Said circuit structure is made up of radiating portion and acceptance division branch, radiating portion (sees that Fig. 2-a) comprises the CCD driving circuit, the characteristic information treatment circuit, modulation transmitter and stable-power power-supply and general supply, the output termination characteristic information treatment circuit of CCD driving circuit, the output termination modulation transmitter of characteristic information treatment circuit, general supply is connected to stable-power power-supply respectively, the CCD driving circuit, characteristic information treatment circuit and modulation transmitter, the illuminator of the output termination opticator of stable-power power-supply, receiving unit (sees that Fig. 2-b) comprises infrared receiving circuit, photoelectric switching circuit, demodulator circuit, single-chip microcomputer, digital display circuit, power supply and keyboard, the output termination photoelectric switching circuit of infrared receiving circuit, the output termination demodulator circuit of photoelectric switching circuit, the output terminal of demodulator circuit connects single-chip microcomputer, the output termination digital display circuit of single-chip microcomputer, power supply is connected to infrared receiving circuit respectively, photoelectric switching circuit, demodulator circuit, single-chip microcomputer and digital display circuit, the input end of keyboard connects single-chip microcomputer; Said physical construction (see figure 3) comprises hand-held casing 9 and handle 10, and the groove 11 that folds up tested conduction is arranged on the cabinet, and groove 11 both sides are the two-mirror 14 of imaging system in the optical texture.

The characteristic information treatment circuit of radiating portion in the above-mentioned said circuit structure (is seen Fig. 2-a and Fig. 2-d) be made of the input end of the output termination phase inverter of binarization circuit binarization circuit and phase inverter.

The modulation transmitter of radiating portion in the above-mentioned said circuit structure (is seen Fig. 2-a and Fig. 2-c) be made of modulation circuit, oscillator, driving circuit, infrared emission circuit, the output terminal of oscillator and characteristic information treatment circuit is connected in the input end of modulation circuit, the output termination driving circuit of modulation circuit, the output termination infrared emission circuit of driving circuit.

Employed each functional circuit is conventional functional circuit in the circuit structure.

Claims

1, the charged telegauge of a kind of portable lead abrasion is characterized in that it is made up of optical texture, circuit structure and physical construction; Said optical texture comprises illuminator and imaging system, constituted by light source, Guang Lan, object lens I, catoptron I, catoptron II, object lens II and CCD electrooptical device, wherein light source, light hurdle and object lens I constitute source of parallel light, catoptron I is set on its parallel light path, catoptron I and parallel light path angle at 45, the relative measured object of catoptron II with catoptron I axisymmetricly, the parallel light path that catoptron II reflects images in the CCD electrooptical device according to object lens II; Said circuit structure is made up of radiating portion and acceptance division branch, radiating portion comprises the CCD driving circuit, the characteristic information treatment circuit, modulation transmitter and stable-power power-supply and general supply, the output termination characteristic information treatment circuit of CCD driving circuit, the output termination modulation transmitter of characteristic information treatment circuit, general supply is connected to stable-power power-supply respectively, the CCD driving circuit, characteristic information treatment circuit and modulation transmitter, the illuminator of the output termination opticator of stable-power power-supply, receiving unit comprises infrared receiving circuit, photoelectric switching circuit, demodulator circuit, single-chip microcomputer, digital display circuit, power supply and keyboard, the output termination photoelectric switching circuit of infrared receiving circuit, the output termination demodulator circuit of photoelectric switching circuit, the output terminal of demodulator circuit connects single-chip microcomputer, the output termination digital display circuit of single-chip microcomputer, power supply is connected to infrared receiving circuit respectively, photoelectric switching circuit, demodulator circuit, single-chip microcomputer and digital display circuit, the input end of keyboard connects single-chip microcomputer; Said physical construction comprises the hand-held casing, and the groove that folds up tested conduction is arranged on the cabinet, and the groove both sides are the two-mirror of imaging system in the optical texture.

2, by the charged telegauge of the said portable lead abrasion of claim 1, the characteristic information treatment circuit that it is characterized in that radiating portion in the said circuit structure is made of binarization circuit and phase inverter, the input end of the output termination phase inverter of binarization circuit.

3, by the charged telegauge of the said portable lead abrasion of claim 1, the modulation transmitter that it is characterized in that radiating portion in the said circuit structure is made of modulation circuit, oscillator, driving circuit, infrared emission circuit, the output terminal of oscillator and characteristic information treatment circuit is connected in the input end of modulation circuit, the output termination driving circuit of modulation circuit, the output termination infrared emission circuit of driving circuit.