CN110542381A - method and device for measuring length of pipe by using laser - Google Patents
method and device for measuring length of pipe by using laser Download PDFInfo
- Publication number
- CN110542381A CN110542381A CN201910766761.0A CN201910766761A CN110542381A CN 110542381 A CN110542381 A CN 110542381A CN 201910766761 A CN201910766761 A CN 201910766761A CN 110542381 A CN110542381 A CN 110542381A
- Authority
- CN
- China
- Prior art keywords
- pipe
- conveying
- length
- distance
- measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
Abstract
the invention discloses a method for measuring the length of a pipe by using laser, which comprises the steps of starting a conveying belt of a conveying groove when the front end of the conveying groove of a pipe measuring platform is detected to have the pipe, conveying the pipe to the tail end of the conveying groove, generating a first signal when the tail end of the pipe leaves a photoelectric switch arranged at a certain position on the conveying groove, stopping the rotation of the conveying belt, triggering a laser range finder arranged at the tail end of the conveying groove to start ranging according to the first signal to obtain a first distance from the laser range finder to the cross section of the pipe, and finally obtaining the length of the pipe according to the fixed distance and the first distance from the laser range finder to the photoelectric switch.
Description
Technical Field
the invention relates to the technical field of measurement, in particular to a method and a device for measuring the length of a pipe by using laser.
Background
at present, a production factory mainly measures the length of a pipe by manually using a steel tape, a large amount of manpower and material resources are consumed, certain errors can also occur in the result of manual measurement, and larger errors can be caused to later data processing and registration if the error occurs in the measurement result.
therefore, a method for measuring the length of the pipe with lower cost and higher precision is urgently needed in a factory at present, and working errors are avoided.
disclosure of Invention
the embodiment of the invention aims to provide a method for measuring the length of a pipe by using laser, which can save labor cost and reduce errors caused by pipe measurement.
In order to achieve the above object, an embodiment of the present invention provides a method for measuring a length of a pipe by using a laser, including the following steps:
When a pipe is detected at the front end of a conveying slot of a pipe measuring platform, starting a conveying belt of the conveying slot, and conveying the pipe to the tail end of the conveying slot;
When the tail end of the pipe leaves a photoelectric switch arranged at a certain position on the conveying groove, generating a first signal and stopping the rotation of the conveying belt;
Triggering a laser range finder arranged at the tail end of the conveying slot position to start ranging according to the first signal to obtain a first distance from the laser range finder to the cross section of the pipe;
and obtaining the length of the pipe according to the fixed distance from the laser range finder to the photoelectric switch and the first distance.
Further, when detecting that there is tubular product at the front end of the conveying trench of the tubular product measuring platform, start the conveyer belt of the conveying trench, will tubular product toward the terminal conveying of conveying trench specifically is:
a pipe measuring platform is arranged at the tail end of a production line, and the front end of a conveying groove of the pipe measuring platform is horizontally connected with a conveying belt at the tail end of the production line, so that a pipe is horizontally conveyed from the conveying belt at the tail end of the production line to the conveying belt of the pipe measuring platform;
When the pipe is completely conveyed to the conveying slot position of the pipe measuring platform, a sensor arranged at the front end of the conveying slot position is triggered, a control signal is generated to control a conveying belt on the conveying slot position to start rotating, and the pipe is conveyed to the tail end of the conveying slot position.
Further, the length of the pipe is obtained according to the fixed distance from the laser range finder to the photoelectric switch and the first distance, and specifically comprises the following steps:
Placing a baffle at the position of the photoelectric switch, and ranging by the laser range finder to obtain the fixed distance from the laser range finder to the photoelectric switch;
And subtracting the first distance from the fixed distance to obtain the length of the pipe.
As a preferred embodiment of the present invention, there is also provided a device for measuring a length of a pipe using laser, including: the device comprises a detection module, a signal generation module, a distance measurement module and a pipe length generation module;
The detection module is used for starting the conveying belt of the conveying groove position and conveying the pipe to the tail end of the conveying groove position when the pipe is detected to be arranged at the front end of the conveying groove position of the pipe measuring platform;
The signal generating module is used for generating a first signal when the tail end of the pipe leaves a photoelectric switch arranged at a certain position on the conveying slot position, and simultaneously stopping the rotation of the conveying belt;
The distance measuring module is used for triggering a laser distance measuring instrument arranged at the tail end of the conveying slot position to start distance measurement according to the first signal to obtain a first distance from the laser distance measuring instrument to the cross section of the pipe;
The pipe length generating module is used for obtaining the length of the pipe according to the fixed distance from the laser range finder to the photoelectric switch and the first distance.
Further, the detection module comprises a docking unit and a triggering unit;
The butt joint unit is used for installing a pipe measuring platform at the tail end of a production line, and the front end of a conveying groove of the pipe measuring platform is horizontally connected with a conveying belt at the tail end of the production line so that a pipe is horizontally conveyed from the conveying belt at the tail end of the production line to the conveying belt of the pipe measuring platform;
And the triggering unit is used for triggering a sensor arranged at the front end of the conveying slot position when the pipe is completely conveyed to the conveying slot position of the pipe measuring platform, generating a control signal to control a conveying belt on the conveying slot position to start rotating and conveying the pipe to the tail end of the conveying slot position.
further, the pipe length generating module comprises a fixed length measuring unit and a pipe length measuring unit;
the fixed length measuring unit is used for placing a baffle at the position of the photoelectric switch, and measuring the distance by the laser range finder to obtain the fixed distance from the laser range finder to the photoelectric switch;
and the pipe length measuring unit is used for subtracting the first distance from the fixed distance to obtain the length of the pipe.
the invention provides a method for measuring the length of a pipe by using laser, which comprises the steps of starting a conveying belt of a conveying groove when the front end of the conveying groove of a pipe measuring platform is detected to have the pipe, conveying the pipe to the tail end of the conveying groove, generating a first signal when the tail end of the pipe leaves a photoelectric switch arranged at a certain position on the conveying groove, stopping the rotation of the conveying belt, triggering a laser range finder arranged at the tail end of the conveying groove to start ranging according to the first signal to obtain a first distance from the laser range finder to the cross section of the pipe, and finally obtaining the length of the pipe according to the fixed distance and the first distance from the laser range finder to the photoelectric switch.
Drawings
FIG. 1 is a schematic flow chart of one embodiment of a method of measuring a length of a pipe using laser light provided by the present invention;
FIG. 2 is a schematic diagram of the operation of one embodiment of the method of the present invention for measuring the length of pipe using laser light;
fig. 3 is a schematic structural diagram of an embodiment of the device for measuring the length of the pipe by using laser provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
referring to fig. 1, fig. 1 is a schematic flow chart of an embodiment of a method for measuring a length of a pipe by using laser according to the present invention. As shown in fig. 1, the authentication method includes steps S1 to S4, which are as follows:
And S1, when the front end of the conveying slot of the pipe measuring platform is detected to have a pipe, starting the conveying belt of the conveying slot, and conveying the pipe to the tail end of the conveying slot.
in this embodiment, step S1 specifically includes: a pipe measuring platform is arranged at the tail end of a production line, and the front end of a conveying groove of the pipe measuring platform is horizontally connected with a conveying belt at the tail end of the production line, so that a pipe is horizontally conveyed from the conveying belt at the tail end of the production line to the conveying belt of the pipe measuring platform; when the pipe is completely conveyed to the conveying slot position of the pipe measuring platform, a sensor arranged at the front end of the conveying slot position is triggered, a control signal is generated to control a conveying belt on the conveying slot position to start rotating, and the pipe is conveyed to the tail end of the conveying slot position.
in this embodiment, the sensor can respond to whether have tubular product in the conveying trench to make the machine begin to measure automatically, saved a large amount of manpower resources.
And S2, when the tail end of the pipe leaves the photoelectric switch arranged at a certain position on the conveying slot, generating a first signal and stopping the rotation of the conveying belt.
in this embodiment, photoelectric switch can be according to the length of tubular product, and the setting of trying to get is in the place nearer from the production line end, and the faster length information who obtains tubular product of being convenient for improves work efficiency.
and S3, triggering a laser distance meter arranged at the tail end of the conveying slot position to start distance measurement according to the first signal, and obtaining a first distance from the laser distance meter to the cross section of the pipe.
and S4, obtaining the length of the pipe according to the fixed distance from the laser range finder to the photoelectric switch and the first distance.
In this embodiment, step S4 specifically includes: placing a baffle at the position of the photoelectric switch, and ranging by the laser range finder to obtain the fixed distance from the laser range finder to the photoelectric switch; and subtracting the first distance from the fixed distance to obtain the length of the pipe.
Referring to fig. 2, in order to better illustrate the working principle of the method of the present invention, the following steps are the steps of the method of measuring the length of the pipe using laser according to the present invention: at first, install tubular product length measuring platform at the production line end, at a front end installation photoelectric sensor, at terminal installation laser range finder, along with tubular product constantly advances towards the platform end, when tubular product end reachs photoelectric sensor and leaves, the system received the signal, then triggers laser range finder and carries out the range finding, utilize fixed distance L between photoelectric sensor and the laser range finder, again with laser range finder measure to the tubular product cross section apart from distance L1, just can obtain tubular product length L2.
the method for measuring the length of the pipe by using the laser comprises the steps of starting a conveying belt of a conveying groove when the front end of the conveying groove of a pipe measuring platform is detected to be provided with the pipe, conveying the pipe to the tail end of the conveying groove, generating a first signal when the tail end of the pipe leaves a photoelectric switch arranged at a certain position on the conveying groove, stopping the rotation of the conveying belt, triggering a laser range finder arranged at the tail end of the conveying groove to start ranging according to the first signal to obtain a first distance from the laser range finder to the cross section of the pipe, and finally obtaining the length of the pipe according to the fixed distance and the first distance from the laser range finder to the photoelectric switch.
referring to fig. 3, as a preferred embodiment of the present invention, the present invention further provides a device for measuring a length of a pipe using laser, including: the device comprises a detection module, a signal generation module, a distance measurement module and a pipe length generation module;
the detection module is used for starting the conveying belt of the conveying groove position and conveying the pipe to the tail end of the conveying groove position when the pipe is detected to be arranged at the front end of the conveying groove position of the pipe measuring platform; the signal generating module is used for generating a first signal when the tail end of the pipe leaves a photoelectric switch arranged at a certain position on the conveying slot position, and simultaneously stopping the rotation of the conveying belt; the distance measuring module is used for triggering a laser distance measuring instrument arranged at the tail end of the conveying slot position to start distance measurement according to the first signal to obtain a first distance from the laser distance measuring instrument to the cross section of the pipe; the pipe length generating module is used for obtaining the length of the pipe according to the fixed distance from the laser range finder to the photoelectric switch and the first distance.
In this embodiment, the detection module includes a docking unit and a triggering unit;
The butt joint unit is used for installing a pipe measuring platform at the tail end of a production line, and the front end of a conveying groove of the pipe measuring platform is horizontally connected with a conveying belt at the tail end of the production line so that a pipe is horizontally conveyed from the conveying belt at the tail end of the production line to the conveying belt of the pipe measuring platform; and the triggering unit is used for triggering a sensor arranged at the front end of the conveying slot position when the pipe is completely conveyed to the conveying slot position of the pipe measuring platform, generating a control signal to control a conveying belt on the conveying slot position to start rotating and conveying the pipe to the tail end of the conveying slot position.
in this embodiment, the tube length generating module includes a fixed length measuring unit and a tube length measuring unit;
the fixed length measuring unit is used for placing a baffle at the position of the photoelectric switch, and measuring the distance by the laser range finder to obtain the fixed distance from the laser range finder to the photoelectric switch; and the pipe length measuring unit is used for subtracting the first distance from the fixed distance to obtain the length of the pipe.
the invention provides a device for measuring the length of a pipe by using laser, which comprises: the pipe length measuring device comprises a detection module, a signal generating module, a distance measuring module and a pipe length generating module, wherein when the detection module detects that a pipe is arranged at the front end of a conveying slot of a pipe measuring platform, a conveying belt of the conveying slot is started, the pipe is conveyed to the tail end of the conveying slot, when the tail end of the pipe leaves a photoelectric switch arranged at a certain position on the conveying slot, the signal generating module generates a first signal and stops the rotation of the conveying belt, a laser distance meter arranged at the tail end of the conveying slot is triggered to start distance measurement according to the first signal by the distance measuring module to obtain a first distance from the laser distance meter to the cross section of the pipe, and the pipe length generating module obtains the length of the pipe according to the fixed distance from the laser distance meter to the photoelectric switch and the first distance by adopting the embodiment provided by the invention, the labor cost can be saved, and the error caused by pipe measurement can be reduced.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
while the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (6)
1. A method of measuring the length of a pipe using laser light, comprising the steps of:
When a pipe is detected at the front end of a conveying slot of a pipe measuring platform, starting a conveying belt of the conveying slot, and conveying the pipe to the tail end of the conveying slot;
when the tail end of the pipe leaves a photoelectric switch arranged at a certain position on the conveying groove, generating a first signal and stopping the rotation of the conveying belt;
Triggering a laser range finder arranged at the tail end of the conveying slot position to start ranging according to the first signal to obtain a first distance from the laser range finder to the cross section of the pipe;
And obtaining the length of the pipe according to the fixed distance from the laser range finder to the photoelectric switch and the first distance.
2. The method for measuring the length of the pipe by using the laser according to claim 1, wherein when the pipe is detected at the front end of the conveying slot of the pipe measuring platform, the conveying belt of the conveying slot is started to convey the pipe to the tail end of the conveying slot, specifically:
a pipe measuring platform is arranged at the tail end of a production line, and the front end of a conveying groove of the pipe measuring platform is horizontally connected with a conveying belt at the tail end of the production line, so that a pipe is horizontally conveyed from the conveying belt at the tail end of the production line to the conveying belt of the pipe measuring platform;
when the pipe is completely conveyed to the conveying slot position of the pipe measuring platform, a sensor arranged at the front end of the conveying slot position is triggered, a control signal is generated to control a conveying belt on the conveying slot position to start rotating, and the pipe is conveyed to the tail end of the conveying slot position.
3. the method for measuring the length of the pipe by using the laser according to claim 2, wherein the length of the pipe is obtained according to the fixed distance from the laser range finder to the photoelectric switch and the first distance, and specifically comprises:
Placing a baffle at the position of the photoelectric switch, and ranging by the laser range finder to obtain the fixed distance from the laser range finder to the photoelectric switch;
And subtracting the first distance from the fixed distance to obtain the length of the pipe.
4. an apparatus for measuring length of a pipe using laser, comprising: the device comprises a detection module, a signal generation module, a distance measurement module and a pipe length generation module;
the detection module is used for starting the conveying belt of the conveying groove position and conveying the pipe to the tail end of the conveying groove position when the pipe is detected to be arranged at the front end of the conveying groove position of the pipe measuring platform;
The signal generating module is used for generating a first signal when the tail end of the pipe leaves a photoelectric switch arranged at a certain position on the conveying slot position, and simultaneously stopping the rotation of the conveying belt;
the distance measuring module is used for triggering a laser distance measuring instrument arranged at the tail end of the conveying slot position to start distance measurement according to the first signal to obtain a first distance from the laser distance measuring instrument to the cross section of the pipe;
the pipe length generating module is used for obtaining the length of the pipe according to the fixed distance from the laser range finder to the photoelectric switch and the first distance.
5. The apparatus for laser gauging of pipe length as claimed in claim 4 wherein said sensing module comprises a docking unit and a triggering unit;
the butt joint unit is used for installing a pipe measuring platform at the tail end of a production line, and the front end of a conveying groove of the pipe measuring platform is horizontally connected with a conveying belt at the tail end of the production line so that a pipe is horizontally conveyed from the conveying belt at the tail end of the production line to the conveying belt of the pipe measuring platform;
and the triggering unit is used for triggering a sensor arranged at the front end of the conveying slot position when the pipe is completely conveyed to the conveying slot position of the pipe measuring platform, generating a control signal to control a conveying belt on the conveying slot position to start rotating and conveying the pipe to the tail end of the conveying slot position.
6. The apparatus for measuring length of pipe using laser according to claim 5, wherein the pipe length generating module comprises a fixed length measuring unit and a pipe length measuring unit;
The fixed length measuring unit is used for placing a baffle at the position of the photoelectric switch, and measuring the distance by the laser range finder to obtain the fixed distance from the laser range finder to the photoelectric switch;
and the pipe length measuring unit is used for subtracting the first distance from the fixed distance to obtain the length of the pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910766761.0A CN110542381A (en) | 2019-08-20 | 2019-08-20 | method and device for measuring length of pipe by using laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910766761.0A CN110542381A (en) | 2019-08-20 | 2019-08-20 | method and device for measuring length of pipe by using laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110542381A true CN110542381A (en) | 2019-12-06 |
Family
ID=68711566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910766761.0A Pending CN110542381A (en) | 2019-08-20 | 2019-08-20 | method and device for measuring length of pipe by using laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110542381A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202687418U (en) * | 2012-08-01 | 2013-01-23 | 苏州昆拓热控系统股份有限公司 | Conveyor belt trigger device for automated production line |
| CN204854691U (en) * | 2015-06-01 | 2015-12-09 | 衡阳镭目科技有限责任公司 | System for on line measurement high -speed conveying has cut continuous casting billet length |
| CN106391489A (en) * | 2015-08-03 | 2017-02-15 | 奥蒂玛光学科技（深圳）有限公司 | Online type circuit board automatic detection and judgment flow dividing device and method |
| CN109013391A (en) * | 2018-10-12 | 2018-12-18 | 广州衍瀚软件有限公司 | A kind of product quality automatic sorting system of view-based access control model detection technique |
-
2019
- 2019-08-20 CN CN201910766761.0A patent/CN110542381A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202687418U (en) * | 2012-08-01 | 2013-01-23 | 苏州昆拓热控系统股份有限公司 | Conveyor belt trigger device for automated production line |
| CN204854691U (en) * | 2015-06-01 | 2015-12-09 | 衡阳镭目科技有限责任公司 | System for on line measurement high -speed conveying has cut continuous casting billet length |
| CN106391489A (en) * | 2015-08-03 | 2017-02-15 | 奥蒂玛光学科技（深圳）有限公司 | Online type circuit board automatic detection and judgment flow dividing device and method |
| CN109013391A (en) * | 2018-10-12 | 2018-12-18 | 广州衍瀚软件有限公司 | A kind of product quality automatic sorting system of view-based access control model detection technique |
Non-Patent Citations (1)
| Title |
|---|
| 李江玲: "《PLC应用技术》", 31 May 2014, 西南交通大学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3205483B1 (en) | Additive manufacturing quality control systems | |
| US10328636B2 (en) | Additive manufacturing quality control systems | |
| CA2579120A1 (en) | Autonomous loading shovel system | |
| CN210863662U (en) | Formaldehyde concentration detection device and air purifier | |
| KR102539287B1 (en) | Apparatus for controlling vehicle based on reliablity of multi lidar and method thereof | |
| CN104528527B (en) | The amount of deflection detection system of engineering machinery arm, method, device and engineering machinery | |
| CN104459736A (en) | GPS device based on gravity sensor and drifting processing method thereof | |
| CN109557525A (en) | A kind of automatic calibration method of laser radar formula vehicle overall dimension measuring instrument | |
| CN110542381A (en) | method and device for measuring length of pipe by using laser | |
| CN110542382A (en) | method and device for measuring length of pipe by utilizing laser correlation | |
| CN201746081U (en) | Conveyor belt monitoring device based on fusion of image and optoelectronic information | |
| CN205492603U (en) | Cigarette machine washboard blocking detector | |
| CN111025300B (en) | Method and device for measuring length of parking space | |
| CN114413878A (en) | Time calibration system, method, electronic equipment and storage medium | |
| CN115258589A (en) | Detection method and detection device for belt conveyor, controller and belt conveyor | |
| US9757993B2 (en) | Apparatus and method for monitoring tire pressure | |
| CN108098120B (en) | Method for evaluating stability of welding wire feeding speed | |
| JP2000131048A (en) | Coil winding form measurement method and device therefor | |
| JP7043761B2 (en) | Utility pole distance measuring device | |
| CN212747769U (en) | Measuring system for measuring station parameters | |
| CN109813803B (en) | Ultrasonic detection method based on polar coordinate method | |
| CN215728833U (en) | Static range finding laser radar system | |
| CN116336949B (en) | Measurement method, device, equipment and medium based on laser displacement | |
| CN115075828B (en) | Real-time positioning method and system for roadway operation machine and operation machine | |
| CN207367231U (en) | For identifying the device of vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191206 |