CN102128635A - System for automatically detecting periodic error of photoelectric distance measuring instrument - Google Patents
System for automatically detecting periodic error of photoelectric distance measuring instrument Download PDFInfo
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- CN102128635A CN102128635A CN 201010554584 CN201010554584A CN102128635A CN 102128635 A CN102128635 A CN 102128635A CN 201010554584 CN201010554584 CN 201010554584 CN 201010554584 A CN201010554584 A CN 201010554584A CN 102128635 A CN102128635 A CN 102128635A
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Abstract
The invention discloses a system for automatically detecting the periodic error of a photoelectric distance measuring instrument. The system comprises a guide rail, distance measuring reflecting prisms, and a detection pier for accommodating the photoelectric distance measuring instrument, wherein the distance measuring reflecting prisms are arranged on the guide rail at intervals according to the periodic error detection requirement. The system for automatically detecting the periodic error of the photoelectric distance measuring instrument is characterized by also comprising a control box and a computer, wherein the distance measuring reflecting prisms are automatic prisms; the computer is connected with the control box; and the control box controls the automatic prisms and the photoelectric distance measuring instrument to be detected. The system for automatically detecting the periodic error of the photoelectric distance measuring instrument has low cost, high efficiency and high automation degree, and can easily and accurately detect the periodic error of the photoelectric distance measuring instrument.
Description
Technical field
The present invention relates to a kind of electro-optical distance instrument, especially a kind of electro-optical distance instrument circular error automatic verification system.
Background technology
According at present, among the State Standard of the People's Republic of China GB/T 14267-2009 " electro-optical distance instrument ", the electro-optical distance instrument circular error is measured, and adopts the calibrating of platform method.The following several modes of the main employing of platform method calibrating, the calibrating platform structure adopts guide tracked: patterns such as " joist steel guide rail ", " twin shaft garden guide rail ", " marble level gauge " are arranged; The pick-up unit system adopts: the fixed system of guide rail slidingtype system and guide rail; Guide rail slidingtype system has hand control system and self-action control system again; Guide rail is fixed to have only the hand control system at present.
The guide rail slidingtype is measured system, be electro-optical distance instrument to be placed in detect on the pier, the reflecting prism of will finding range is placed on the calibrating platform rail sliding machine, when mensuration is, sliding machine on the mobile platform guide rail, each displacement is 1/40 or 1/20 of the smart chi length of stadimeter, displacement is that sliding machine centering is fixed on the standard arrangement guide rail with being placed in the baseline chi of placing on the platform, measure its instrument measured distance by tested stadimeter, the relatively smart chi length of its instrument and accurately displacement (" true value " that the baseline chi provides), obtain the circular error of instrument, its calibration accuracy depends on precision (the benchmark accuracy≤2*10-5) of the each displacement of sliding machine provides on the platform rail " true value ", the precision of " true value " that the each displacement of sliding machine provides, depend on the precision of the each mobile fixed range of sliding machine location to point, at present, the point location mode is had two kinds: a kind of is that each artificial sliding machine displacement is to a visual reading observation location; Another is the automatic displacement of guide rail sliding machine location, and it utilizes a high-precision laser interferometer real-time positioning platform rail sliding machine displacement.
Guide rail is fixed, be that 1/40 or 1/20 the displacement that the smart chi of tested stadimeter is long is settled reflecting prism and is fixed on the guide rail, the reflecting prism measuring point is counted n 〉=16, with demarcating (the accuracy≤2*10-5) set up each reflecting prism measuring point to demarcate " true value " of benchmark instrument, then, be measured to each reflecting prism measuring point actual range respectively with tested stadimeter, with build mark " true value " relatively, ask its stadimeter circular error, at present, employing is that each reflecting prism transversal displacement of artificial semiautomatic control is to measuring point.
Mainly there is following problem in calibrating installation system from above-mentioned several calibrating platform structures are adopted:
1) the manual verification system of guide rail slidingtype
The manual verification system of guide rail slidingtype, owing to need manually carry out sliding machine on the mobile platform guide rail, need artificial mobile fixed displacement amount location to point, need two people's cooperatings during calibrating, along with to the increasing an of number of times, workload is big, and the people is tired easily, a precision is affected inefficiency.
2) guide rail slidingtype automatic verification system
Guide rail slidingtype automatic verification system, owing to adopted high-precision laser interferometer real-time positioning technology, verification system only needs one man operation, improve work efficiency greatly, and guaranteed calibration accuracy, but because this system has adopted laser interferometer real-time positioning technology, involve great expense the maintenance cost height.
3) the fixed verification system of guide rail
The fixed verification system of guide rail is placed in reflecting prism on the point of fixity of each shift length of guide rail owing to adopted, and verification system only needs one man operation, but owing to laterally resetting of reflecting prism on the displacement measuring point, need artificial automatically controlled resetting, still be subjected to workload big, the not high influence of work efficiency.
Summary of the invention
The present invention seeks to: a kind of low cost, high-level efficiency, electro-optical distance instrument circular error automatic verification system that automaticity is high are provided.
Technical scheme of the present invention is: a kind of electro-optical distance instrument circular error automatic verification system, comprise guide rail, range finding reflecting prism and the detection pier that is used to place electro-optical distance instrument, described range finding reflecting prism detects the interval that requires according to circular error and is placed on the guide rail, it is characterized in that, described electro-optical distance instrument circular error automatic verification system also comprises control box and computing machine, and described range finding reflecting prism is from index prism; Described computing machine links to each other with control box, and described control box control is described from index prism and electro-optical distance instrument to be measured.
Further, described control box comprises: microprocessor, and communicating circuit, prism driving circuit and power circuit, described communicating circuit connects microprocessor and computing machine; Described microprocessor control prism driving circuit and electro-optical distance instrument to be measured; Described power circuit is a microprocessor, and communicating circuit and prism driving circuit provide power supply.
Further, described microprocessor is a single-chip microcomputer.
Further, it is characterized in that described communicating circuit is MAX232.
Further, described prism driving circuit comprises NPN triode Q14, diode D14 and resistance R 61 and R21; With NPN triode Q14 drive unit, diode D14 is used to protect triode; If input IN14 is triode Q14 conducting when being in high level, this moment, the input end A14 of diode D14 was a low level, and motor clockwise rotates, and prism is moved to the travel switch K1 place of position to be measured, and travel switch K1 closes and, circuit breaker, and motor shuts down; Otherwise input IN14 is not conducting of triode Q14 when being in low level, this constantly the input end A14 of diode D14 be high level, motor then oppositely rotates counterclockwise, and prism is moved to the travel switch K2 place of origin-location, travel switch K2 close and, circuit breaker, motor stops operating.
Further, described power circuit comprises the power supply adaptor of 12v, and the circuit that the 12v power source conversion can be become 7.2V power supply and 5V power supply.
Further, described guide rail is placed on the large span T type beam.
Advantage of the present invention is:
Processing simple, move flexibly, to advantages such as line are accurate, assembly technology is simple, characteristics such as automaticity height.Guide rail is placed in resistance, anti-crawl agentdefiection is good, and on the large span T type beam, system is by assembling guide rail and the electronic range finding reflecting prism of displacement point, through precision level coarse adjustment, accurate adjustment, the collimator collimation carries out level, vertical both direction adjustment respectively by measured data, makes calibrating platform flatness≤5*10
-5, the platform and the instrument pier discrepancy in elevation are not more than 2mm and on same directional ray; Come card (Leica) the DI2002 precision distance measurement instrument (nominal accuracy 1mm+1ppm*D) that adopts state inspection center to demarcate is demarcated reflecting prism position on the displacement point of fixity, after the transformation of criterion data processing, and its benchmark accuracy≤2*10
-5, expire the vertification regulation requirement fully.
2. electro-optical distance instrument circular error automatic verification system, fixedly the twin shaft guide rail has fixed that can to satisfy the position that different frequency stadimeter circular error measures past on long-span beams T type, 4 groups 48 of compound electronic range finding reflecting prisms, see shown in the accompanying drawing 1 (baseline system technology detail drawing), utilize PC, control box is past with the position that relevant Control Software is controlled different frequency stadimeter circular error mensuration automatically, compound electronic range finding reflecting prism group, reach the purpose that circular error is measured, after the mensuration program begins, need not human intervention, automatically finish mensuration, overall processes such as calculating and accuracy assessment, saved manpower greatly, material resources and time, calibration accuracy and efficient have been improved.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is the synoptic diagram of electro-optical distance instrument circular error automatic verification system of the present invention.
Fig. 2 is the cut-open view of electro-optical distance instrument circular error automatic verification system of the present invention.
Fig. 3 is the structured flowchart of electro-optical distance instrument circular error automatic verification system of the present invention.
Fig. 4 is the 7.2V power circuit diagram of electro-optical distance instrument circular error automatic verification system of the present invention.
Fig. 5 is the 5V power circuit diagram of electro-optical distance instrument circular error automatic verification system of the present invention.
Fig. 6 is the interface microcontroller extended chip figure of electro-optical distance instrument circular error automatic verification system of the present invention.
Fig. 7 is the control box communication interface circuit diagram of electro-optical distance instrument circular error automatic verification system of the present invention.
Fig. 8 is the electronic prism motor drive circuit of electro-optical distance instrument circular error automatic verification system of the present invention.
Fig. 9 is the electronic prism control chart of electro-optical distance instrument circular error automatic verification system of the present invention.
Figure 10 is the vertical view of electro-optical distance instrument circular error automatic verification system of the present invention.
Figure 11 is the synoptic diagram (do not comprise and detect pier) of electro-optical distance instrument circular error automatic verification system of the present invention.
Figure 12 is the synoptic diagram (do not comprise and detect pier) of electro-optical distance instrument circular error automatic verification system of the present invention.
Embodiment
Corresponding relation between table 1 instrument accurate measurement frequency and the prism interval
| The accurate measurement frequency | Instrument accurate measurement chi is long | 1/15 chi is long at interval for prism |
| 15MHz | 10m | 0.667m |
Table 2 circular error check baseline platform---each dominant frequency accurate measurement chi instrument apart from prism, and prism at interval between corresponding relation:
| 34 | 36.598 | 0.333 | 5 | |||
| 35 | 36.931 | 0.333 | 6 | 8 | ||
| 36 | 37.264 | 0.333 | 7 | |||
| 37 | 37.598 | 0.333 | 8 | 9 |
| 38 | 37.931 | 0.333 | 9 | |||
| 39 | 38.264 | 0.333 | 10 | 10 | ||
| 40 | 38.598 | 0.333 | 11 | |||
| 41 | 38.931 | 0.333 | 12 | 11 | ||
| 42 | 39.264 | 0.333 | 13 | |||
| 43 | 39.598 | 0.333 | 14 | 12 | ||
| 44 | 39.931 | 5.000 | 15 | |||
| 45 | 40.264 | 0.333 | 13 | |||
| 46 | 40.931 | 0.667 | 14 | |||
| 47 | 41.598 | 0.667 | 15 | |||
| 48 | 42.264 | 10.667 | 16 |
At first control box is divided into four groups with 47 groups of prisms according to the accurate measurement frequency of reality electro-optical distance instrument commonly used, every group of 16 prisms, the centre has the part prism to use each other, the arrangement mode of its 47 groups (amounting to 48) prisms as shown in figure 12, the control box instruction of sending according to PC is controlled opening of 4 certain electronic prisms in the group and is closed and control the range finding of stadimeter then, and the test data of the stadimeter that receives returned to PC, control box mainly is made up of three parts such as power circuit, single-chip microcomputer processing and communicating circuit, prism driving circuits:
Power circuit: as Fig. 4, shown in Figure 5, primary power is provided by 12V power supply adaptor (output power 30W).Becoming 7.2V power supply and 5V power supply to supply with instrument and single-chip microcomputer and MAX232 respectively by the 34063A circuit conversion again uses.
Single-chip microcomputer is handled and communicating circuit: as Fig. 6, shown in Figure 7, because control box will be controlled 4 groups of (amounting to 48) electronic prisms, and the I/O mouth of main control chip is limited, so adopting 3 4-16 line latch decoders (as shown in Figure 4) expands the I/O mouth, when INHIBIT connects low level, when STROBE connect high level, the chip decoding function was opened, latch function is closed, single-chip microcomputer is imported A with signal, B, C, D four ports, thus latch decoder is with the break-make of corresponding decoded signal output control metal-oxide-semiconductor.Single-chip microcomputer uses USART0 to interrupt receiving and controls the instruction that sends from PC, carries out instruction analysis after receiving instruction immediately, and judgement is the operation of control instrument or the electronic prism of control.Control instrument is to utilize the USART1 mouth to instrument sending controling instruction and the electronic prism of Data Control that obtains returning, and a part is to utilize I/O set control motor walking circuit, and another part is to control by code translator expansion I/O mouth.Computing machine is realized and microcontroller communication by the RS-232 serial ports, PC sends instruction and is sent to single-chip microcomputer, instruction type is divided into two groups, it is to be measured that one group of instruction is that the N target prism on the control baseline platform is opened etc., another group instruction is that control instrument is tested, and it conveys to instrument through single-chip microcomputer.This process is carried out communication by single-chip microcomputer and instrument by 4 core cables.
Electronic prism motor drive circuit: as shown in Figure 8, with NPN triode Q14 drive unit, diode D14 is used to protect triode.If IN14 is the Q14 conducting when being in high level, this moment, A14 was a low level, and motor clockwise rotates, and prism is moved to the travel switch K1 place of position to be measured, and travel switch K1 closes and, circuit breaker, and motor shuts down.Otherwise, not conducting of Q14 when IN14 is in low level, this moment, A14 was a high level, and motor then oppositely rotates counterclockwise, and prism is moved to the travel switch K2 place of origin-location, and travel switch K2 closes and, circuit breaker, and motor stops operating.Be reversed puncture in order to ensure Q14 is unlikely, so insert diode D14.
Electronic prism control chart as shown in Figure 9, a process of the pairing operation of command adapted thereto is judged and is carried out in the instruction that control box will receive from PC.The whole control case system is finished by the ATMEGA162L Single-chip Controlling, and the main operation of carrying out has the ON/OFF of electronic prism, the measurement data and the instruction of transmitting-receiving instrument.The serial ports able to programme (USART0) of ATMEGA162L connects PC, is used to receive instruction that PC software sends and sends the data that instrument returns to PC; Serial ports able to programme (USART1) connects instrument, is used for sending instruction and receiving the data that instrument returns to instrument; 4 I/O mouths of ATMEGA162L are directly controlled electronic prism; Choose 3 groups, every group of 5 I/O mouth connects 1 code translator, and three code translators altogether are used for controlling indirectly electronic prism.
Above embodiment only is the present invention's a kind of embodiment wherein, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with claims.
Claims (7)
1. electro-optical distance instrument circular error automatic verification system, comprise guide rail, range finding reflecting prism and the detection pier that is used to place electro-optical distance instrument, described range finding reflecting prism detects the interval that requires according to circular error and is placed on the guide rail, it is characterized in that, described electro-optical distance instrument circular error automatic verification system also comprises control box and computing machine, and described range finding reflecting prism is from index prism; Described computing machine links to each other with control box, and described control box control is described from index prism and electro-optical distance instrument to be measured.
2. electro-optical distance instrument circular error automatic verification system according to claim 1 is characterized in that described control box comprises: microprocessor, and communicating circuit, prism driving circuit and power circuit, described communicating circuit connects microprocessor and computing machine; Described microprocessor control prism driving circuit and electro-optical distance instrument to be measured; Described power circuit is a microprocessor, and communicating circuit and prism driving circuit provide power supply.
3. electro-optical distance instrument circular error automatic verification system according to claim 2 is characterized in that described microprocessor is a single-chip microcomputer.
4. electro-optical distance instrument circular error automatic verification system according to claim 2 is characterized in that described communicating circuit is MAX232.
5. electro-optical distance instrument circular error automatic verification system according to claim 2 is characterized in that described prism driving circuit comprises NPN triode Q14, diode D14 and resistance R 61 and R21; With NPN triode Q14 drive unit, diode D14 is used to protect triode; If input IN14 is triode Q14 conducting when being in high level, this moment, the input end A14 of diode D14 was a low level, and motor clockwise rotates, and prism is moved to the travel switch K1 place of position to be measured, and travel switch K1 closes and, circuit breaker, and motor shuts down; Otherwise input IN14 is not conducting of triode Q14 when being in low level, this constantly the input end A14 of diode D14 be high level, motor then oppositely rotates counterclockwise, and prism is moved to the travel switch K2 place of origin-location, travel switch K2 close and, circuit breaker, motor stops operating.
6. electro-optical distance instrument circular error automatic verification system according to claim 2 is characterized in that described power circuit comprises the power supply adaptor of 12v, and the circuit that the 12v power source conversion can be become 7.2V power supply and 5V power supply.
7. electro-optical distance instrument circular error automatic verification system according to claim 1 is characterized in that, described guide rail is placed on the large span T type beam.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010554584 CN102128635A (en) | 2010-11-23 | 2010-11-23 | System for automatically detecting periodic error of photoelectric distance measuring instrument |
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| CN 201010554584 CN102128635A (en) | 2010-11-23 | 2010-11-23 | System for automatically detecting periodic error of photoelectric distance measuring instrument |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506902A (en) * | 2011-12-02 | 2012-06-20 | 中国计量科学研究院 | Device and method for evaluating accuracy of prism-free distance measurement of total station |
| CN104266661A (en) * | 2014-09-23 | 2015-01-07 | 上海烟草集团有限责任公司 | Method for calibrating distance measuring instrument of stacker |
| CN104296775A (en) * | 2013-12-27 | 2015-01-21 | 广东省计量科学研究院 | Control system of prism reflection |
| CN110044271A (en) * | 2019-04-19 | 2019-07-23 | 武汉地震计量检定与测量工程研究院有限公司 | A kind of geodimeter circular error measurement method |
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| CN201593977U (en) * | 2009-12-08 | 2010-09-29 | 中冶成工上海五冶建设有限公司 | Rangefinder periodic error calibrating device |
| CN201903644U (en) * | 2010-11-23 | 2011-07-20 | 苏州科技学院 | Automatic circular error calibration system for geodimeter |
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| CN101464163A (en) * | 2007-12-18 | 2009-06-24 | 上海宝钢工业检测公司 | Straightness detecting method for platform normal point used for total station instrument check |
| CN201593977U (en) * | 2009-12-08 | 2010-09-29 | 中冶成工上海五冶建设有限公司 | Rangefinder periodic error calibrating device |
| CN201903644U (en) * | 2010-11-23 | 2011-07-20 | 苏州科技学院 | Automatic circular error calibration system for geodimeter |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506902A (en) * | 2011-12-02 | 2012-06-20 | 中国计量科学研究院 | Device and method for evaluating accuracy of prism-free distance measurement of total station |
| CN102506902B (en) * | 2011-12-02 | 2015-01-14 | 中国计量科学研究院 | Device and method for evaluating accuracy of prism-free distance measurement of total station |
| CN104296775A (en) * | 2013-12-27 | 2015-01-21 | 广东省计量科学研究院 | Control system of prism reflection |
| CN104296775B (en) * | 2013-12-27 | 2019-01-18 | 广东省计量科学研究院 | The reflective control system of prism |
| CN104266661A (en) * | 2014-09-23 | 2015-01-07 | 上海烟草集团有限责任公司 | Method for calibrating distance measuring instrument of stacker |
| CN104266661B (en) * | 2014-09-23 | 2017-02-22 | 上海烟草集团有限责任公司 | Method for calibrating distance measuring instrument of stacker |
| CN110044271A (en) * | 2019-04-19 | 2019-07-23 | 武汉地震计量检定与测量工程研究院有限公司 | A kind of geodimeter circular error measurement method |
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Application publication date: 20110720 |