CN1415936A - Survey meter for measuring distance between trailers of train and measuring method - Google Patents
Survey meter for measuring distance between trailers of train and measuring method Download PDFInfo
- Publication number
- CN1415936A CN1415936A CN 02146304 CN02146304A CN1415936A CN 1415936 A CN1415936 A CN 1415936A CN 02146304 CN02146304 CN 02146304 CN 02146304 A CN02146304 A CN 02146304A CN 1415936 A CN1415936 A CN 1415936A
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- trailer
- locomotive
- circuit
- distance
- measuring
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Abstract
This invention discloses an instrument land method for testing distance between a locomotive and a trailer including measurnig head, test circuit system and single chip computer and display and alarm in which the measuring constitutes an optical magnifier, haseplate and photoelectric converter. The test circuit is made up of amplified preprocessing circuit, filter autoamtic gain circuit and wave form variation circuit characterizing that the outut of waveform variation circuit connect in parallel separately with target identifying trigger circuit and computer, interface circuit, which outputs connect in parallel with the single chip computer, display and alarm.
Description
Technical field
The present invention relates to a kind of simple, practical, cheap engine trailer distance survey instrument and measuring method.Belong to stadimeter and ranging technology.
Background technology
When engine is hung the compartment, usually because the distance survey of engine is inaccurate serious car accident taking place, causes casualties and massive losses that material damages.Still there is not at present the good car distance survey instrument of hanging.Only rely on the artificial estimation of railway engine-driver, so error is big, can not determines spacing exactly.Even cause car accident because of factors such as long-time observation, fatigue drivings.Need to develop a kind of distance survey instrument for this reason.This surveying instrument requires to satisfy the distance of range finding greater than five " spacings ", promptly more than 100 meters.The warning spacing is 5 meters, sound and light alarm; Next requires instrument to work under the natural weather condition and the instrument cost is lower than 2000 yuan/platform.
The method that existing distance survey relates to has:
1, laser distance measurement method adopts the laser triangulation principle.Its measuring accuracy height, but when telemeasurement, need higher power laser diode.Thereby cost is higher, is unsuitable for condition of work.
2, ultrasonic ranging method adopts interface echometric measurement principle.At the bottom of the instrument cost, but measuring method is difficult to overcome the interference of heavy weather, and can't use in practice.
3, radar range finding method adopts reflection wave to measure and calculates principle.Instrument can be worked under rugged surroundings.But technical difficulty is big, and the cost height is safeguarded and used difficulty, and is not suitable for the measurement of trailer spacing.
Certain methods is still arranged, as servicing unit method or the like under microwave method, wireless directed telemetry, rod pillow mensuration, the car.Low because of instrument cost height, poor anti jamming capability, measuring accuracy, disturb problem such as locomotive, the practical application of all failing to obtain.
Summary of the invention
The object of the present invention is to provide a kind of engine trailer distance survey instrument and measuring method.Described measuring instrument has characteristics simple in structure, cheap, that antijamming capability is strong.Described measuring method principle is simple, practical reliable.
For achieving the above object, the present invention is realized by following technical proposals.Measuring instrument is by comprising measuring head, metering circuit system and placing the interior single-chip microcomputer of train " black box " and display, alarm constitute.Wherein form by collapsible optical loupes group, trapezoidal base plate and opto-electronic conversion Charge Coupled Device (CCD) according to the measuring head of long sight principle design.The metering circuit system is mainly by amplified preprocessing circuit; Filtering, auto-gain circuit; The waveform transformation circuit is formed.It is characterized in that the output terminal of waveform transformation circuit is connected to target respectively and differentiates trigger circuit sum counter, interface circuit.Their output terminal is connected to single-chip microcomputer, display and alarm.
Adopting the measuring instrument measurement engine of said structure and the method for trailer distance is that measuring instrument is placed on locomotive head apart from 1.5 meters-2 meters parts of ground rail, implements the trailer spacing is measured.It is characterized in that adopting following step:
The distance of A. virtual definite locomotive and trailer spacing: with locomotive advance the measuring head of China National Instruments Import ﹠ Export Corporation device in visual range to the virtual target scanned imagery of two rail, and being converted to electric signal, the numerical value through reading on counter after the processing and amplifying is as the virtual definite locomotive and the distance of trailer.
B. the mensuration of locomotive and trailer actual range: locomotive is traveling in virtual definite distance, scanning is pounced on when grasping trailer, and then measuring instrument is pounced on the trailer imaging of grasping to scanning, and is converted to electric signal, become a trigger message through processing and amplifying, be transferred to the single-chip microcomputer work in " black box ".The virtual definite locomotive that locomotive driving distance and the counter that calculating " black box " is write down reads and the algebraic sum of trailer distance.Its result of calculation is the actual range of locomotive and trailer.When actual range reaches alarm distance, alarm equipment alarm prompting trainman trailer.
The invention has the advantages that surveying instrument is simple in structure, cheap, antijamming capability is strong, and using method is practical reliable.
Description of drawings
Fig. 1 is the structured flowchart of measuring instrument of the present invention.
Fig. 2 is the measuring head structural representation of Fig. 1.
Among the figure, 1 is the apparatus measures head; 2 is the apparatus measures Circuits System; 3 is the Single Chip Microcomputer (SCM) system in the black box; 4 is display and alarm.5 is the measuring head shell; 6 is optical loupes; 7 are optics amplification and folding system; 8 is Charge Coupled Device (CCD); 9 is support; 10 is the circuit board of metering circuit system; 11 is cushion block; 12 is trapezoidal base plate; 13 for amplifying microscope base.
Embodiment
Example: measuring head is the level of state to be positioned over crosses the bridge plate middle position apart from 2 meters locomotive heads of rail.Turn on the power switch in locomotive is advanced, measuring head and train black box are worked simultaneously.The apparatus measures head will scan the virtual target on the rail, form through optical loupes to resemble, and be converted to electric signal by the pale pinkish purple device of electric charge.This signal is by amplified preprocessing circuit, filtering, auto-gain circuit and waveform transformation, and the counting interface circuit is transformed to digital quantity signal with analog quantity, is transferred to single-chip microcomputer and obtains virtual locomotive trailer spacing thus.The spacing of this moment can be 100 meters, or can be 120 meters, or can be 150 meters etc.
When in locomotive is advanced, scanning trailer, with the trailer imaging, be converted to electric signal through the pale pinkish purple device of electric charge through the optical loupes group.This signal is given single-chip microcomputer in the black box through the Target Recognition circuit with the information transmission of trigger circuit in the apparatus measures Circuits System.Single-chip microcomputer picks up the operating range of train under the order of trigger message at this moment, and passes through the algebraic sum computing of software, can obtain the actual spacing of engine and trailer.Constantly advance by train thus, can obtain the engine in the different moment and the actual trailer distance between the trailer, this actual trailer distance display is on the display of driver driving chamber.When actual trailer apart from and the set warning of single-chip microcomputer when equating, instrument sends warning, points out engine driver's trailer.Thereby reach the generation of avoiding car accident.In the practical application of the present invention, in the sleet sky or the dust storm sky of locomotive work, or day its measuring accuracy all is not affected round the clock.
Claims (2)
1. engine trailer distance survey instrument, this measuring instrument is by comprising measuring head, metering circuit system and the single-chip microcomputer and the display that place in the train " black box ", alarm constitutes, wherein the measuring head according to the long sight principle design is by collapsible optical loupes group, trapezoidal base plate and opto-electronic conversion Charge Coupled Device (CCD) are formed, the metering circuit system is mainly by amplified preprocessing circuit, filtering, auto-gain circuit, the waveform transformation circuit is formed, it is characterized in that: the output terminal of waveform transformation circuit is connected to target respectively and differentiates the trigger circuit sum counter, interface circuit, their output terminal is connected to single-chip microcomputer, display and alarm circuit system.
2. adopt by the described a kind of engine trailer distance survey instrument of claim 1, realize the measuring method of engine to the trailer spacing, be that measuring instrument is placed on locomotive head apart from 1.5 meters-2 meters parts of ground rail, implement the trailer spacing is measured, it is characterized in that adopting following step:
The distance of A. virtual definite locomotive and trailer spacing: with locomotive advance the measuring head of China National Instruments Import ﹠ Export Corporation device in visual range to the virtual target scanned imagery of two rail, and being converted to electric signal, the numerical value through reading on counter after the processing and amplifying is as the virtual definite locomotive and the distance of trailer;
B. the mensuration of locomotive and trailer actual range: locomotive is traveling in virtual definite distance, scanning is pounced on when grasping trailer, then the trailer imaging of grasping pounced on scanning by measuring instrument, and the electric signal that converts to, become a trigger message through processing and amplifying, be transferred to the single-chip microcomputer work in " black box ", the virtual definite locomotive that locomotive driving distance and the counter that calculating " black box " is write down reads and the algebraic sum of trailer distance, its result of calculation is the actual range of locomotive and trailer, when actual range reaches alarm distance, alarm equipment alarm prompting trainman trailer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021463042A CN100465581C (en) | 2002-08-08 | 2002-10-21 | Survey meter for measuring distance between trailers of train and measuring method |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02125442 | 2002-08-08 | ||
| CN02125442.7 | 2002-08-08 | ||
| CN021254427 | 2002-08-08 | ||
| CNB021463042A CN100465581C (en) | 2002-08-08 | 2002-10-21 | Survey meter for measuring distance between trailers of train and measuring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1415936A true CN1415936A (en) | 2003-05-07 |
| CN100465581C CN100465581C (en) | 2009-03-04 |
Family
ID=25741150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021463042A Expired - Fee Related CN100465581C (en) | 2002-08-08 | 2002-10-21 | Survey meter for measuring distance between trailers of train and measuring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100465581C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280000A (en) * | 2011-06-14 | 2011-12-14 | 常州第二电子仪器有限公司 | Laser alarm |
| CN107856764A (en) * | 2016-09-22 | 2018-03-30 | 福特全球技术公司 | For the trailer for the operation characteristic for measuring vehicle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2135158Y (en) * | 1992-07-13 | 1993-06-02 | 王国强 | Intelligent ultrasonic rangefinder for vehicle |
| US5729194A (en) * | 1996-11-26 | 1998-03-17 | Spears; Dan E. | Backup system to position vehicle relative to stationary trailer during backing procedure |
| DE19831262C2 (en) * | 1998-07-11 | 2002-09-19 | Wabco Gmbh & Co Ohg | Device to support the driver of a commercial vehicle when reversing |
| US6259357B1 (en) * | 1999-12-30 | 2001-07-10 | Joseph Heider | Trailer hitch positioning apparatus |
| CN2412222Y (en) * | 2000-02-02 | 2000-12-27 | 罗小平 | Front and rear obstacles warner for automobile |
-
2002
- 2002-10-21 CN CNB021463042A patent/CN100465581C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280000A (en) * | 2011-06-14 | 2011-12-14 | 常州第二电子仪器有限公司 | Laser alarm |
| CN102280000B (en) * | 2011-06-14 | 2013-02-13 | 常州第二电子仪器有限公司 | Laser alarm |
| CN107856764A (en) * | 2016-09-22 | 2018-03-30 | 福特全球技术公司 | For the trailer for the operation characteristic for measuring vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100465581C (en) | 2009-03-04 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20091123 |