CN103591903A - System and method for measuring distance between elevator lift car sill and well inner surface - Google Patents
System and method for measuring distance between elevator lift car sill and well inner surface Download PDFInfo
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- CN103591903A CN103591903A CN201310592565.9A CN201310592565A CN103591903A CN 103591903 A CN103591903 A CN 103591903A CN 201310592565 A CN201310592565 A CN 201310592565A CN 103591903 A CN103591903 A CN 103591903A
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Abstract
The invention discloses a system for measuring the distance between an elevator lift car sill and a well inner surface. The system comprises a data acquisition system, a data processing system, an auxiliary system and a display system, wherein the data acquisition system, the data processing system and the display system are sequentially connected. The auxiliary system comprises a power source and a control circuit, the data acquisition system comprises a laser displacement sensor, a signal of the laser displacement sensor is processed through the data processing system, and displacement data are obtained and then displayed through the display system. According to the system, a maximum value and a minimum value which are measured within a certain period are filtered through the filtering processing technology, other points are weighed to solve to obtain an average, and accurate data can be obtained; an analog signal is output through the laser sensing technology and then converted into a digital signal to be processed through a single-chip microcomputer, and the system has the advantages of being high in efficiency and accuracy, easy to operate and convenient to popularize and use.
Description
Technical field
The present invention relates to field of measuring technique, be specifically related to a kind of measuring system and the method for lift car sill and hoistway inside surface distance.
Background technology
Elevator, as a kind of means of transport, is widely used in house, hotel, market, office building contour level building, is the requisite walking-replacing tool of Modern Urban Living and delivery vehicle.According to the statistics of Chinese elevator industry association, China has become maximum in the world elevator market at present.But the elevator management pattern of China, inspection technology level, act.std also exist a certain distance compared with developed countries, especially relatively lag behind ，Gei manufacturing enterprise and inspection sheet bit strip of the further investigation of inspection technology aspect carrys out a lot of difficulties.Meanwhile, recent years, elevator increased in numbers swiftly, man-machine unmatched contradiction.
Wherein, the horizontal range at the edge, nearest doorway of < < elevator supervision and inspection content request and method > > regulation elevator hoistways inside surface and car sill, car door framework or sliding gate should not be greater than 0.15m.At present, common measurement lift car sill and hoistway inside surface distance method are: elevator is in inspecting state upstream or downstream, and at correct position, place stops, and opens gate, and car sill and hoistway inside surface distance are measured with steel tape, obtain data.Obviously, there are the following problems for this measuring method: operating difficulties, more loaded down with trivial details, and length consuming time, checkability is low, low precision, for the irregular hoistway inside surface of some verticality, easily occurs misjudgment phenomenon.Therefore, innovation inspection technology, raising check work efficiency, assurance quality inspection, raising elevator safety level become inspection body's key issue urgently to be resolved hurrily.
Summary of the invention
A kind of measuring system and the method that is to provide lift car sill and hoistway inside surface distance of the present invention, for solving that prior art is measured difficulty length loaded down with trivial details, consuming time, efficiency is low and problem accurately not.
To achieve the above object of the invention, the technical solution used in the present invention is: the measuring system of a kind of lift car sill and hoistway inside surface distance, comprise data acquisition system (DAS), data handling system, backup system and display system, described data acquisition system (DAS), described data handling system are connected successively with display system; Described backup system comprises power supply and control circuit; Described data acquisition system (DAS) comprises laser displacement sensor, and laser displacement sensor is fixedly mounted on lift car sill limit, laser displacement sensor perpendicular alignmnet hoistway inside surface; The signal of described laser displacement sensor is processed and is obtained displacement data through data handling system, then is shown by display system.
In technique scheme, described laser displacement sensor range is 20mm, linear precision 0.1%, maximum operating speed 3m/s, 12V powered battery, serviceability temperature scope-40～120oC.
In technique scheme, described data handling system comprises A/D conversion chip, singlechip chip, filtering processing module and storer.
In technique scheme, described backup system also comprises fixed equipment, and fixed equipment is fixing magnet suction device, is convenient for measuring and safe and reliable.
In technique scheme, described display system comprises data disaply moudle.
In the present invention, first the voltage signal of laser displacement sensor output is processed through step-down, then simulating signal being passed to A/D conversion chip changes, and the digital signal after conversion is sent to singlechip chip and processes, singlechip chip is processed the data that transmit, computing, obtain displacement data, the data that obtain are by filtering processing module, the maximin of measuring in a certain cycle of elimination, and all the other some weightings are averaging, obtain more accurate data, be stored in storer simultaneously, the data disaply moudle of display system is by the data that finally obtain, elevator technology parameter and data and curves show.
The present invention also provides the measuring method of a kind of lift car sill and hoistway inside surface distance, it is characterized in that, comprises the steps:
(1) laser displacement sensor is fixedly mounted on lift car sill limit, makes laser displacement sensor perpendicular alignmnet hoistway inside surface, then open laser displacement sensor, Emission Lasers is measured;
(2) voltage signal of laser displacement sensor output is processed through step-down, then simulating signal being passed to A/D conversion chip changes, and send the digital signal after conversion to singlechip chip is processed, computing, then processing module weighting is averaging and obtains displacement data after filtering; By display system, show reading out data L again
1.
In technique scheme, in described step (1), laser displacement sensor utilizes the mode of magnetic to be fixedly mounted on lift car sill limit.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1. the present invention has adopted filtering treatment technology, the maximin of measuring in a certain cycle of elimination, and all the other some weightings are averaging, can obtain more accurate data.
2. the present invention adopts laser sensing technology, outputting analog signal, then simulating signal is converted to after digital signal, by single-chip microcomputer, processed, there is high-level efficiency, high precision and simple to operate, conveniently promote the use of.
Accompanying drawing explanation
Fig. 1 is the composition diagram of measuring system of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment mono-
As shown in Figure 1, the measuring system of a kind of lift car sill and hoistway inside surface distance, comprise data acquisition system (DAS), data handling system, backup system and display system, described data acquisition system (DAS), described data handling system are connected successively with display system; Described backup system comprises power supply and control circuit; Described data acquisition system (DAS) comprises laser displacement sensor, and the signal of described laser displacement sensor is processed and obtained displacement data through data handling system, then is shown by display system.
In technique scheme, described laser displacement sensor range is 20mm, linear precision 0.1%, maximum operating speed 3m/s, 12V powered battery, serviceability temperature scope-40～120oC.
In technique scheme, described data handling system comprises A/D conversion chip, singlechip chip, filtering processing module and storer.
In technique scheme, described backup system also comprises fixed equipment, and fixed equipment is fixing magnetic instrument, is convenient for measuring and safe and reliable.
In technique scheme, described display system comprises data disaply moudle.
The present invention also provides the measuring method of a kind of lift car sill and hoistway inside surface distance, it is characterized in that, comprises the steps:
(1) laser displacement sensor is fixedly mounted on lift car sill limit, makes laser displacement sensor perpendicular alignmnet hoistway inside surface, then open laser displacement sensor, Emission Lasers is measured;
(2) voltage signal of laser displacement sensor output is processed through step-down, then simulating signal being passed to A/D conversion chip changes, and send the digital signal after conversion to singlechip chip is processed, computing, then processing module weighting is averaging and obtains displacement data after filtering; By display system, show reading out data L again
1.
In technique scheme, in described step (1), laser displacement sensor utilizes the mode of magnetic to be fixedly mounted on lift car sill limit.
In order to obtain more accurate data, the present invention also provides the method for error analysis, specific as follows:
The measuring error of instrument mainly comes from following two aspects: the precision of the laser displacement sensor of device and the measuring error that causes; The mounted probe of measure field and lift car sill the measuring error of fixed range.
1. error e 1.Range of this measuring method employing is the laser displacement sensor of 15 millimeters, its linear precision 0.1%, and the measuring error of the instrument causing is e1=15* 0.1%=0.015mm, the measured value that display system shows is L
1=7.5mm.
2. error e 2.By the measuring error of the fixed range of the mounted laser displacement sensor of tape measure and terrain car sill, repeatedly measure and average and make its measuring error can reach e2=0.18 mm.If repeatedly measure and average, can significantly reduce this error.
Conclusion: by above-mentioned computing formula, the designed elevator gauge deviation computing formula of the present invention is: e=e1+e2=0.195mm, so the actual range L=L recording
1+ e=7.695mm.
Claims (7)
1. a measuring system for lift car sill and hoistway inside surface distance, is characterized in that: comprise data acquisition system (DAS), data handling system, backup system and display system,
Described data acquisition system (DAS), described data handling system are connected successively with display system;
Described backup system comprises power supply and control circuit;
Described data acquisition system (DAS) comprises laser displacement sensor, and laser displacement sensor is fixedly mounted on lift car sill limit, laser displacement sensor perpendicular alignmnet hoistway inside surface;
The signal of described laser displacement sensor is processed and is obtained displacement data through data handling system, then is shown by display system.
2. the measuring system of a kind of lift car sill according to claim 1 and hoistway inside surface distance, it is characterized in that: described laser displacement sensor range is 20mm linear precision 0.1%, maximum operating speed 3m/s, 12V powered battery, serviceability temperature scope-40～120oC.
3. a kind of lift car sill based on laser ranging according to claim 1 and hoistway inside surface, apart from intelligent measuring systems, is characterized in that: described data handling system comprises A/D conversion chip, singlechip chip, filtering processing module and storer.
4. the measuring system of a kind of lift car sill according to claim 1 and hoistway inside surface distance, is characterized in that: described backup system also comprises fixed equipment.
5. the measuring system of a kind of lift car sill according to claim 1 and hoistway inside surface distance, is characterized in that: described display system comprises data disaply moudle.
6. a measuring method for lift car sill and hoistway inside surface distance, is characterized in that, comprises the steps:
(1) laser displacement sensor is fixedly mounted on lift car sill limit, makes laser displacement sensor perpendicular alignmnet hoistway inside surface, then open laser displacement sensor, Emission Lasers is measured;
(2) voltage signal of laser displacement sensor output is processed through step-down, then simulating signal being passed to A/D conversion chip changes, and send the digital signal after conversion to singlechip chip is processed, computing, then processing module weighting is averaging and obtains displacement data after filtering; By display system, show reading out data L again
1.
7. measuring method according to claim 6, is characterized in that: in described step (1), laser displacement sensor utilizes the mode of magnetic to be fixedly mounted on lift car sill limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310592565.9A CN103591903A (en) | 2013-11-22 | 2013-11-22 | System and method for measuring distance between elevator lift car sill and well inner surface |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310592565.9A CN103591903A (en) | 2013-11-22 | 2013-11-22 | System and method for measuring distance between elevator lift car sill and well inner surface |
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| CN103591903A true CN103591903A (en) | 2014-02-19 |
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| CN201310592565.9A Pending CN103591903A (en) | 2013-11-22 | 2013-11-22 | System and method for measuring distance between elevator lift car sill and well inner surface |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044827A (en) * | 2017-04-17 | 2017-08-15 | 杭州市特种设备检测研究院 | With pit spacing wireless detecting system and method for wirelessly testing at the top of elevator hoistways |
| CN112648923A (en) * | 2020-12-12 | 2021-04-13 | 山东省农业机械科学研究院 | Virtual calculation method for detecting size of product part |
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| WO1993023323A1 (en) * | 1992-05-19 | 1993-11-25 | Boral Johns Perry Industries Pty. Ltd. | Guide rail deviation measurement device |
| CN1787960A (en) * | 2004-04-08 | 2006-06-14 | 三菱电机株式会社 | Elevator apparatus |
| CN1994843A (en) * | 2006-12-29 | 2007-07-11 | 广州日立电梯有限公司 | Elevator guide rail error checking system and method |
| CN101445198A (en) * | 2007-11-26 | 2009-06-03 | 白士良 | Sensor of lift-typed elevator and safety device for digital-displaying electronic over-speed governor |
| WO2009073010A1 (en) * | 2007-12-07 | 2009-06-11 | Otis Elevator Company | Methods and devices for surveying elevator hoistways |
| CN101888962A (en) * | 2007-12-07 | 2010-11-17 | 因温特奥股份公司 | Elevator cabin position detection system and method of determining a position of an elevator cabin in an elevator shaft |
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2013
- 2013-11-22 CN CN201310592565.9A patent/CN103591903A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993023323A1 (en) * | 1992-05-19 | 1993-11-25 | Boral Johns Perry Industries Pty. Ltd. | Guide rail deviation measurement device |
| CN1787960A (en) * | 2004-04-08 | 2006-06-14 | 三菱电机株式会社 | Elevator apparatus |
| CN1994843A (en) * | 2006-12-29 | 2007-07-11 | 广州日立电梯有限公司 | Elevator guide rail error checking system and method |
| CN101445198A (en) * | 2007-11-26 | 2009-06-03 | 白士良 | Sensor of lift-typed elevator and safety device for digital-displaying electronic over-speed governor |
| WO2009073010A1 (en) * | 2007-12-07 | 2009-06-11 | Otis Elevator Company | Methods and devices for surveying elevator hoistways |
| CN101888962A (en) * | 2007-12-07 | 2010-11-17 | 因温特奥股份公司 | Elevator cabin position detection system and method of determining a position of an elevator cabin in an elevator shaft |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044827A (en) * | 2017-04-17 | 2017-08-15 | 杭州市特种设备检测研究院 | With pit spacing wireless detecting system and method for wirelessly testing at the top of elevator hoistways |
| CN107044827B (en) * | 2017-04-17 | 2023-06-27 | 杭州市特种设备检测研究院 | Wireless detection system and wireless detection method for elevator shaft top and pit space |
| CN112648923A (en) * | 2020-12-12 | 2021-04-13 | 山东省农业机械科学研究院 | Virtual calculation method for detecting size of product part |
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Application publication date: 20140219 |