CN2660531Y - Contact net static parameter intelligence measurer - Google Patents
Contact net static parameter intelligence measurer Download PDFInfo
- Publication number
- CN2660531Y CN2660531Y CN 200320111394 CN200320111394U CN2660531Y CN 2660531 Y CN2660531 Y CN 2660531Y CN 200320111394 CN200320111394 CN 200320111394 CN 200320111394 U CN200320111394 U CN 200320111394U CN 2660531 Y CN2660531 Y CN 2660531Y
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- circuit
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- measuring
- contact net
- ultrasonic probe
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model relates to an intelligent test device for static parameter of electrified railway contact net, of which the structure is that a test stent is equipped with a measuring host and ultrasonic probes. Two ends of the stent are equipped with measuring feet. The improved part lies in that two ultrasonic probes which are inclined inward are arranged on the two ends of the test stent. Ultrasonic transmitting and receiving sensors in every ultrasonic probe are respectively connected with an impulse rectifying circuit and a central processing unit in the measuring host through a transmitting driving circuit and an echo receiving amplifying circuit. The movement and the adjustment of the measuring host of the utility model are not required. With timely sharing of two ultrasonic probes, the measurement can be implemented directly. The operation process is convenient. The working efficiency is improved and the effects of human factors on the measuring results are eliminated, which have important promoting and safeguard functions on the guarantee of reliable, safe and punctual operations of electric locomotives and electric multiple units.
Description
Technical field
The utility model relates to a kind of measurement mechanism, specifically a kind of contact net static parameter intelligent measuring apparatus.
Background technology
Contact net is the important direct travelling facility of electric railway, is the special transmission line of electricity to safe and reliable power supplies such as electric locomotive and electric motor car groups.Therefore contact net need detect and revise residing position, top along the railway frequently, to guarantee the safe and reliable operation of rolling stock.And lead height and stagger that two leading indicators of Contact Line Detection are exactly contact net.
Early stage metering system is to adopt the insulating bar method to measure, and belongs to contact type measurement, and its measuring error is big, and has potential safety hazard.Adopting afterwards has non-contact measurement apparatus such as optical measuring instrument and range finder using laser to detect.Use these devices to be improved measuring the contact net process safe, but still it is big and be subjected to unfavorable factors such as extraneous light, climate effect to have a measuring error.The CN96248241 patent disclosure a kind of " ultrasound wave contact net measuring instrument ", it is made up of with light path and range-measuring circuit test bracket and moving slider, test bracket is provided with the survey pin, surveying pin contacts with rail, so that the measurement mechanism location also is provided with knob in horizontal bubble, superelevation dip stick and the accent on test bracket.Measure main frame and moving slider and join, and be furnished with 12 bearings, will measure the center that main frame is displaced to test bracket with convenient, and vertical with support.In measuring main frame lens, right-angle prism, enocscope and imaging plate etc. are housed, the ultrasonic ranging circuit are arranged with emission, reception ultrasonic pulse signal in the main frame, carry out integral operation then, the result send display to show.Use this measurement device, after harmonizing in the position of measurement mechanism itself, its measuring accuracy height; Security is good when using in addition, and long service life.But existing deficiency is the measuring operation complex steps, and has more artificial adjustment factor to exist, and therefore can't really guarantee the high precision of measuring.
The utility model content
The purpose of this utility model just provides a kind of easy and simple to handle, contact net static parameter intelligent measuring apparatus that can really guarantee high-acruracy survey.
The utility model is achieved in that contact net static parameter intelligent measuring apparatus is that test bracket is provided with measurement main frame and ultrasonic probe, the support two ends are provided with the survey pin, institute's improvements are that ultrasonic probe has two, lay respectively at the two ends of test bracket, two ultrasonic probes slope inwardly and time-sharing work, and the ultrasonic emitting in each ultrasonic probe and receiving sensor receive amplifying circuit and pulse shaping circuit by emission driving circuit, echo respectively and be connected with central processing unit in the measurement main frame.This device is placed on railway two one steel rails ask that the survey pin at test bracket two ends is stuck in the rail inboard, the ultrasonic probe at support two ends lays respectively at the top of two one steel rails and slopes inwardly.Launch ultrasonic pulse signal to the contact line conducting wire of rail top respectively by two ultrasonic probes measuring the host computer control two ends, and reception echo, according to the mistiming and the hyperacoustic velocity of wave that transmit and receive signal, can calculate the contact line conducting wire of this check point rail top respectively to the distance between two ultrasonic probes then by measuring main frame.This distance is half of product of ultrasonic velocity and emission, recovery time difference.Last again according to the cosine law of trigonometric function, can calculate the height value of contact line conducting wire and determine the vertical point of lead to the test bracket simultaneously, to the distance between the vertical point of lead, can accurately calculate the stagger in the contact net static parameter by two one steel rail mid points.
Ultrasonic probe in the utility model is positioned to be measured outside the main frame, thereby need not on test bracket, to measure the artificial mobile of main frame and adjust, as long as on rail, place and fix after this pick-up unit, the time-sharing work of two ultrasonic probes by two ends can easy, automatically, directly detect the static parameter of contact net.Intervene and adjustment because measuring process is unmanned, can directly measure, so measurement procedure is very easy, work efficiency improves, and has eliminated the influence of human factor to measurement result to greatest extent.The use ultrasonic probe is measured, amblent air temperature condition and light situation there is not specific (special) requirements, and be not affected, guaranteed the detection of round-the-clock contact net static parameter, the needs of real work have been made things convenient for, be a kind of more advanced, convenient and practical contact net static parameter security measurement device, reliable, safety, running on time to ensureing electric locomotive, electric motor car group have important promotion and guaranteeing role.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the circuit block diagram that the utility model is measured main frame.
Fig. 3 is the circuit block diagram of ultrasonic probe.
Embodiment
As shown in Figure 1, the test bracket 2 of the utility model measuring instrument adopts the aluminium alloy gauging rule of standard, be provided with the survey pin 5 of clamping rail inboard in the bottom surface at support two ends, the end face at the support two ends is provided with a piece of inclination to the inside, on the piece two ultrasonic probes 1,4 is housed respectively.On support 2, also be fixed with measurement main frame 3, two ultrasonic probes 1,4 and be electrically connected with measuring main frame 3, and controlled time-sharing work.
Among Fig. 2, measure main frame 3 and constitute central processing unit by single-chip microcomputer and peripheral circuit, operation keyboard, left and right sides ultrasonic probe, temperature measuring circuit, display, clock circuit, storage and serial communication circuit and central processing unit join.The temperature measuring circuit that this is wherein set, be to be used for the testing environment temperature, with when the high Precision Detection or environment temperature to the ultrasonic velocity influence when big, call the temperature compensation subroutine voluntarily, carry out temperature compensation with measurement data, realize the temperature compensation function of this measuring instrument ultrasonic velocity.
Operation keyboard and LCD are the man-machine dialogue interface of this measuring instrument, and operational order is sent to central processing unit, and the duty and the test data of central processing unit is presented on the display.
The measurement result of this measuring instrument can the bar function form be stored in and measure in the main frame, can inquire about afterwards, also can be by measuring serial communication circuit and the computer interconnection in the main frame, by computing machine these all detection data are carried out statistical treatment and printout, thereby reduce the working strength of survey crew, increase work efficiency.
By the way, can realize the intelligent automatic high-acruracy survey and the statistical treatment of this device.
In Fig. 3, included ultrasonic emitting sensor 6 and ultrasound wave receiving sensor 7 in each ultrasonic probe, the emission sensor 6 in each ultrasonic probe meets the P of 89C58 single-chip microcomputer in the central processing unit by the emission driving circuit
1.1Pin or P
1.2Pin; Receiving sensor 7 meets the T of single-chip microcomputer by echo reception amplifying circuit and pulse shaping circuit
0Or T
1Pin.The ultrasonic pulse signal of 40KHz is by the P of single-chip microcomputer
1.1Or P
1.2Pin is sent, and through power amplification, drives two ultrasonic emitting sensors 6, and the ultrasonic pulse of 40KHz is sent in timesharing.Two ultrasound wave receiving sensors 7 will receive from the ultrasonic echo signal of target reflection, and be converted to voltage signal, again after echo receives amplifying circuit and amplifies, input pulse shaping circuit (this circuit can be made of the threshold values comparator with adjustable) is delivered to the T of single-chip microcomputer more respectively
0Or T
1Port as interrupt request singal, makes central processing unit carry out timing and measurement computing.Time sharing mode can be avoided influencing each other of two ultrasonic probes, is the basic assurance that two ultrasonic probes carry out reliably working and accurately measure.For improving measuring accuracy, also can adopt the mode of a bit repeatedly measuring, measurement data behind twice digital filtering, is finished surveying work.
Among Fig. 3, on central processing unit, be connected to the analog power control circuit, on the supply terminals in emission driving circuit, echo reception amplifying circuit and the pulse shaping circuit in its output tap ultrasonic probe.The analog power circuit is used so that the bigger ultrasonic probe of power consumption only starts when measurement needs and work, and in the next closed condition that is in of other non-surveying work states.Can reduce the complete machine consumption of this measuring instrument like this, prolong the serviceable life of battery.
Claims (3)
1, a kind of contact net static parameter intelligent measuring apparatus, test bracket (2) is provided with measures main frame (3) and ultrasonic probe (1,4), the support two ends are provided with surveys pin (5), it is characterized in that ultrasonic probe has two, lay respectively at the two ends of test bracket (2), two ultrasonic probes slope inwardly and time-sharing work, and the ultrasonic emitting in each ultrasonic probe and receiving sensor (6,7) are connected with central processing unit in the measurement main frame (3) by emission driving circuit, echo reception amplifying circuit and pulse shaping circuit respectively.
2, contact net static parameter intelligent measuring apparatus according to claim 1, it is characterized in that measuring main frame (3) and constitute central processing unit by single-chip microcomputer and peripheral circuit, operation keyboard, left and right sides ultrasonic probe, temperature measuring circuit, display, clock circuit, storer and serial communication circuit and central processing unit join.
3, contact net static parameter intelligent measuring apparatus according to claim 2, it is characterized in that being connected on central processing unit the analog power circuit, emission driving circuit, echo in its output tap ultrasonic probe receive the supply terminals in amplifying circuit and the pulse shaping circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320111394 CN2660531Y (en) | 2003-12-19 | 2003-12-19 | Contact net static parameter intelligence measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320111394 CN2660531Y (en) | 2003-12-19 | 2003-12-19 | Contact net static parameter intelligence measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2660531Y true CN2660531Y (en) | 2004-12-01 |
Family
ID=34344235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320111394 Expired - Fee Related CN2660531Y (en) | 2003-12-19 | 2003-12-19 | Contact net static parameter intelligence measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2660531Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301986A (en) * | 2015-11-30 | 2016-02-03 | 中铁电气化勘测设计研究院有限公司 | Railway catenary spatial position simulation platform |
| CN105891617A (en) * | 2014-09-05 | 2016-08-24 | 济南希声计量技术有限公司 | Performance tester for supersonic transducer |
| CN108106562A (en) * | 2017-12-05 | 2018-06-01 | 浙江维思无线网络技术有限公司 | A kind of contact net measuring method and device |
| CN109238072A (en) * | 2018-10-10 | 2019-01-18 | 成都禾木科技有限公司 | Rail level line center fixed type contact net geometric parameter measurement instrument verification table |
-
2003
- 2003-12-19 CN CN 200320111394 patent/CN2660531Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891617A (en) * | 2014-09-05 | 2016-08-24 | 济南希声计量技术有限公司 | Performance tester for supersonic transducer |
| CN105891617B (en) * | 2014-09-05 | 2018-11-16 | 济南希声计量技术有限公司 | A kind of ultrasonic transducer performance test apparatus |
| CN105301986A (en) * | 2015-11-30 | 2016-02-03 | 中铁电气化勘测设计研究院有限公司 | Railway catenary spatial position simulation platform |
| CN105301986B (en) * | 2015-11-30 | 2018-01-26 | 天津中铁电气化设计研究院有限公司 | A kind of railway contact line locus simulation table |
| CN108106562A (en) * | 2017-12-05 | 2018-06-01 | 浙江维思无线网络技术有限公司 | A kind of contact net measuring method and device |
| CN108106562B (en) * | 2017-12-05 | 2021-02-09 | 浙江维思无线网络技术有限公司 | Contact net measuring method and device |
| CN109238072A (en) * | 2018-10-10 | 2019-01-18 | 成都禾木科技有限公司 | Rail level line center fixed type contact net geometric parameter measurement instrument verification table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |