CN106501814B - Laser measuring fat instrument - Google Patents
Laser measuring fat instrument Download PDFInfo
- Publication number
- CN106501814B CN106501814B CN201611126367.3A CN201611126367A CN106501814B CN 106501814 B CN106501814 B CN 106501814B CN 201611126367 A CN201611126367 A CN 201611126367A CN 106501814 B CN106501814 B CN 106501814B
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- China
- Prior art keywords
- scale
- laser
- shell
- ranging sensor
- laser ranging
- 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.)
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- 238000005259 measurement Methods 0.000 abstract description 16
- 235000013372 meat Nutrition 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 5
- 235000015277 pork Nutrition 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 241000282887 Suidae Species 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/46—Indirect determination of position data
- G01S17/48—Active triangulation systems, i.e. using the transmission and reflection of electromagnetic waves other than radio waves
-
- 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
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention provides a laser fat meter, which comprises a shell, wherein one side of the shell is provided with a scale, the upper part of the shell is provided with a data interface, the lower part of the shell is provided with a handle, and the handle is provided with a switch; the shell is internally provided with a control circuit, a laser ranging sensor and a display screen, and the display screen is arranged on the front side of the shell; the transmitting lens and the receiving lens of the laser ranging sensor are close to the scale, and lenses are arranged on the shell in front of the transmitting lens and the receiving lens of the laser ranging sensor; the data interface and the laser ranging sensor are connected with the control circuit through data lines, and the display screen and the switch are connected with the control circuit through wires. The zero scale mark is arranged at the top end of the scale, so that the boundary line of the fat meat is conveniently found, the accuracy of the measurement operation of a school team is convenient, the scale is provided with obvious scales, the accuracy of the measured data of the laser range finder is calibrated, the measurement accuracy and the anti-interference capability are improved, the size is small, the operation is convenient, and the measured data are timely displayed and output in real time.
Description
Technical Field
The invention relates to the technical field of pig carcass backfat measurement, in particular to a laser backfat measuring instrument.
Background
With the increasing standard of living, the demand for lean pigs is increasing, so the backfat thickness of the pig carcass needs to be measured. The usual measurement methods are: the ruler with the measuring range of 20cm is directly used for measurement, so that human errors are large, the working intensity is high, data uploading is not timely, data input computers and one-to-one correspondence are specially needed after production is finished, data processing is complicated, human factors are large, errors are easy to occur, the backfat thickness relates to purchasing settlement of live pigs, and the data error is serious; the ultrasonic fat measuring instrument is used for measuring the fat of live pigs, and has the advantages of large equipment, high cost, inaccurate data and poor correspondence after test.
The laser ranging sensor emits laser pulse to the target via the laser diode, and the laser is scattered in different directions after being reflected by the target, and part of scattered light returns to the sensor receiver to be received by the optical system and imaged onto the avalanche photodiode. An avalanche photodiode is an optical sensor having an amplifying function inside, so that it can detect extremely weak optical signals. Thus, the laser ranging sensor records and processes the time that elapses from when the light pulse is emitted to when the light pulse is received back, i.e., the target distance can be measured. The laser ranging sensor adopts a laser triangle principle or an echo analysis principle to carry out non-contact position and displacement measurement, and is widely applied to industrial measurement of geometric quantities such as position, displacement, thickness, radius, shape, vibration, distance and the like.
Disclosure of Invention
Aiming at the technical problems of low measurement precision, complex operation, complex data processing and the like of the conventional ruler for live pig fat measurement, the invention provides the laser fat meter which has the advantages of small volume, simple operation, high measurement precision and reliable and stable performance.
In order to solve the technical problems, the technical scheme of the invention is as follows: the laser fat measuring instrument comprises a shell, wherein one side of the shell is provided with a scale, the upper part of the shell is provided with a data interface, the lower part of the shell is provided with a handle, and the handle is provided with a switch; the shell is internally provided with a control circuit, a laser ranging sensor and a display screen, and the display screen is arranged on the front side of the shell; the transmitting lens and the receiving lens of the laser ranging sensor are close to the scale, and lenses are arranged on the shell in front of the transmitting lens and the receiving lens of the laser ranging sensor; the data interface and the laser ranging sensor are connected with the control circuit through data lines, and the display screen and the switch are connected with the control circuit through wires.
The upper portion of casing is equipped with the stay bolt, and swing joint has rings on the stay bolt.
The handle is connected with the shell through the connecting plate, the cross-sectional area of the connecting plate is equal to that of the handle, and the connecting plate is fixed at the lower part of the shell through bolts.
The bottom of the handle is provided with a baffle, and the baffle is provided with a buffering concave surface.
The measuring range of the scale is 70mm, and the end part of the scale is fixed on the shell through a fixing bolt; the end of the scale far away from the shell is a zero scale mark.
And a hollow part is arranged between the scale marks on two sides of the scale.
The control circuit comprises a battery, a memory and a singlechip, and the battery, the memory, a data interface, a laser ranging sensor, a display screen and a switch are all connected with the singlechip.
According to the invention, the short-interval high-precision fat measurement device manufactured by utilizing the triangulation principle of the laser ranging sensor and the advanced single chip microcomputer integration technology is provided, and the zero scale mark is arranged at the top end of the scale, so that the boundary line of the fat meat is conveniently found, the measurement data of the laser ranging sensor can be corrected, and the measurement precision and the anti-interference capability are improved; the middle part of the scale is hollowed, so that the falling point of the laser on the surface of the pigskin can be conveniently seen through the hollowed part, and the accuracy of the measurement operation of a school team is convenient; the scale is provided with obvious scales, the accuracy of the measured data of the laser range finder is checked, the size is small, the operation is convenient, and the measured data can be displayed in time and output in real time.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a rear view of fig. 1 of the present invention.
Fig. 3 is a right side view of fig. 1 in accordance with the present invention.
Fig. 4 is a schematic view of the structure of the inside of the housing of fig. 1 according to the present invention.
In the figure, 1 is a shell, 2 is a scale, 3 is a display screen, 4 is a handle, 5 is a button, 6 is a data interface, 7 is a lifting ring, 8 is a laser ranging sensor, 9 is a control circuit, 10 is a lens, 11 is a baffle, 12 is a fixing bolt, 13 is a connecting plate, 14 is a supporting bolt, and 15 is a limit bolt.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, 2, 3 and 4, the laser fat meter comprises a casing 1, wherein the casing 1 is a cuboid made of SUS304 stainless steel material, has a smooth, concise and attractive appearance, has an IP67 protection level, and prevents water and dust from entering the casing 1 to damage a control circuit 9 and a laser ranging sensor 8. The shell 1 is connected by bolts, so that the disassembly and the maintenance are convenient. One side of the shell 1 is provided with a scale 2, the upper part of the shell 1 is provided with a data interface 6, the data interface 6 is a serial port from RS485 to RS232, and the data transmission efficiency is high. The lower part of the shell 1 is provided with a handle 4, and the handle 4 is provided with a switch 5. The switch 5 is a simple and attractive round switch, the service life of the machine is longer, and the safety is higher. The handle 4 is made of an integrally formed polymer composite material by a 3D printing technique. The scale 2 is manufactured by a linear cutting processing technology, and the scale 2 is displayed with high precision to measure and compare the numerical value in real time, wherein the scale is a fine scale every 5mm and a coarse scale every 10 mm. The middle part of the scale mark of the scale 2 is hollow, so that the falling point of the laser on the surface of the pigskin can be conveniently seen through the hollow part, and the accuracy of the measurement operation of the school is convenient. A control circuit 9, a laser distance measuring sensor 8 and a display screen 3 are arranged in the housing 1, and the display screen 3 is arranged on the front side of the housing 1. The laser ranging sensor 8 is an original entry of SENSPART in Germany, the model is FT50 RLA-70-S1L8, the resolution is high, the external dimension is small, the installation is easy, and the setting function is complete. The transmitting lens and the receiving lens of the laser ranging sensor 8 are close to the scale 2, and the lens 10 is arranged on the shell 1 in front of the transmitting lens and the receiving lens of the laser ranging sensor 8, so that the laser ranging sensor 8 can conveniently send laser pulses and receive returned light waves, and therefore no dirt is covered on the lens 10. The distance between the laser pulse emitted by the laser ranging sensor 8 and the zero scale mark of the scale 2 and the distance between the received light wave are preset fixed values, and the control circuit 9 subtracts the preset fixed values from the value detected by the laser ranging sensor 8 to obtain the measured fat value of the live pig. The data interface 6 and the laser ranging sensor 8 are connected with the control circuit 9 through data lines, and the display screen 3 and the switch 5 are connected with the control circuit 9 through wires.
The laser ranging sensor 8 utilizes the optical triangulation principle to realize measurement accuracy measurement, and the optical triangulation principle is as follows: the laser ranging sensor 8 utilizes a laser emitter in the laser ranging sensor to emit laser pulses, the laser pulses are focused on an object to be measured by the lens, reflected light is collected by the lens of the laser ranging sensor 8 and projected onto the linear CCD array; the CCD array transmits the obtained signal to a signal processor, and the signal processor calculates the position of the light spot on the linear CCD array through a trigonometric function to obtain the distance from the object. Two similar triangles are arranged on two sides of the lens, so that the distance can be conveniently measured. According to the pork classifying device, the zero scale line of the scale 2 is placed at the fat joint line, the laser pulse emitted by the laser ranging sensor 8 is beaten on the pork skin, the distance between the laser pulse of the laser ranging sensor 8 and the zero scale line subtracted from the value measured by the laser ranging sensor 8 is the fat thickness value, the value is displayed on the display screen 3 through the control circuit 9, and meanwhile, the value is transmitted to the upper computer through the data line on the data interface 6 to classify the pork.
Preferably, the upper portion of casing 1 is equipped with supporting bolt 14, and supporting bolt 14 is last swing joint to have rings 10, and rings 10's effect is equipped with the lifting rope on the rings 10, is equipped with balancing unit on the lifting rope, has reduced working strength. The handle 4 is connected with the housing 1 through a connecting plate 13, the cross-sectional area of the connecting plate 13 is larger than that of the handle 4, and the connecting plate 13 is fixed at the lower part of the housing 1 through bolts. The bottom of the handle 4 is provided with a baffle 11, the baffle 11 is provided with a buffering concave surface, the handle is suitable for being held by a worker, and the handle is prevented from slipping off the holding of the worker. The limit bolt 15 fixes the laser range finder, guarantees the zero scale mark distance of laser source and ruler, prevents that zero scale from taking place the displacement in the use.
The measuring range of the invention is 0-66mm, the design precision is 0.01mm, and the use precision is 1mm. The measuring range of the scale 2 is 70mm, and the end part of the scale 2 is fixed on the shell 1 through the fixing bolt 12. The end of the scale 2 remote from the housing 1 is zero graduation mark.
The control circuit 9 comprises a battery, a memory and a singlechip, and the battery, the memory, the data interface 6, the laser ranging sensor 8, the display screen 3 and the switch 5 are all connected with the singlechip. The singlechip is a matched device specially developed for the laser ranging sensor 8. The battery is a power supply which adopts 220V external power supply to convert into 24V-5V, the 5V power supply supplies power for the memory and the singlechip, and the 24V power supply supplies power for the laser ranging sensor 8.
The working process of the invention is as follows: the correction equipment is utilized for three times of correction, the values measured for three times are all usable, otherwise, the maintenance of the whole device is carried out; when the pork on the production line is at a proper measuring position, the staff holds the handle 4, the zero scale line of the scale is placed at the position of the fat meat combination line, then the switch 5 is pressed, the laser ranging sensor 8 is used for beating the emitted laser pulse on the pigskin, the measured data are displayed on the display screen 3, and meanwhile, the measured data are transmitted to the upper computer through the data interface 6 for further processing.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. The utility model provides a laser fat meter, includes casing (1), its characterized in that: one side of the shell (1) is provided with a scale (2), the upper part of the shell (1) is provided with a data interface (6), the lower part of the shell (1) is provided with a handle (4), and the handle (4) is provided with a switch (5); a control circuit (9), a laser ranging sensor (8) and a display screen (3) are arranged in the shell (1), and the display screen (3) is arranged on the front side of the shell (1); the transmitting lens and the receiving lens of the laser ranging sensor (8) are close to the scale (2), and a lens (10) is arranged on the shell (1) in front of the transmitting lens and the receiving lens of the laser ranging sensor (8); the data interface (6) and the laser ranging sensor (8) are connected with the control circuit (9) through data lines, and the display screen (3) and the switch (5) are connected with the control circuit (9) through wires;
the measuring range of the scale (2) is 70mm, and the end part of the scale (2) far away from the shell (1) is a zero scale mark; placing a zero scale line of the scale (2) at a fat-meat joint line, and striking laser pulses emitted by a laser ranging sensor (8) on pigskin;
the distance between the laser pulse sent by the laser ranging sensor (8) and the zero scale mark of the scale (2) is a preset fixed value, and the control circuit (9) subtracts the preset fixed value from the value detected by the laser ranging sensor (8) to obtain the measured fat value of the live pig.
2. The laser weight monitor as set forth in claim 1, wherein the upper portion of the housing (1) is provided with a supporting bolt (14), and the supporting bolt (14) is movably connected with a hanging ring (7).
3. The laser weight monitor according to claim 1, wherein the handle (4) is connected to the housing (1) through a connecting plate (13), the cross-sectional area of the connecting plate (13) is equal to the cross-sectional area of the handle (4), and the connecting plate (13) is fixed to the lower portion of the housing (1) through bolts.
4. The laser fat meter according to claim 1, wherein a baffle (11) is provided at the bottom of the handle (4), and a buffer concave surface is provided on the baffle (11).
5. The laser light weight instrument according to claim 1, characterized in that the end of the scale (2) is fixed to the housing (1) by means of a fixing bolt (12).
6. The laser fat meter according to claim 5, wherein the scale marks on both sides of the scale (2) are hollowed out.
7. The laser weight monitor according to claim 1, wherein the control circuit (9) comprises a battery, a memory and a single-chip microcomputer, and the battery, the memory, the data interface (6), the laser ranging sensor (8), the display screen (3) and the switch (5) are all connected with the single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611126367.3A CN106501814B (en) | 2016-12-09 | 2016-12-09 | Laser measuring fat instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611126367.3A CN106501814B (en) | 2016-12-09 | 2016-12-09 | Laser measuring fat instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106501814A CN106501814A (en) | 2017-03-15 |
| CN106501814B true CN106501814B (en) | 2023-12-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611126367.3A Active CN106501814B (en) | 2016-12-09 | 2016-12-09 | Laser measuring fat instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106501814B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253701A (en) * | 2018-11-09 | 2019-01-22 | 中国农业大学 | Pig carcass back-fat thickness laser detection system and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3901597A (en) * | 1973-09-13 | 1975-08-26 | Philco Ford Corp | Laser distance measuring device |
| GB1494147A (en) * | 1974-06-05 | 1977-12-07 | Hofstetter K | Apparatus for tracing the fat/meat stratum of slaughtered animals |
| CN1922506A (en) * | 2004-02-19 | 2007-02-28 | 莱卡地球系统公开股份有限公司 | Hand-held device for measuring distances |
| CN104515472A (en) * | 2015-01-16 | 2015-04-15 | 中国农业大学 | Portable nondestructive detection method and device of pork dyad backfat thickness |
| CN104777486A (en) * | 2015-02-04 | 2015-07-15 | 杨军 | Handheld laser short-distance measurement instrument |
| CN205537519U (en) * | 2016-01-27 | 2016-08-31 | 长安大学 | Portable laser measuring tape |
| CN206331119U (en) * | 2016-12-09 | 2017-07-14 | 河南双汇投资发展股份有限公司 | A kind of amount of laser light fat instrument |
-
2016
- 2016-12-09 CN CN201611126367.3A patent/CN106501814B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3901597A (en) * | 1973-09-13 | 1975-08-26 | Philco Ford Corp | Laser distance measuring device |
| GB1494147A (en) * | 1974-06-05 | 1977-12-07 | Hofstetter K | Apparatus for tracing the fat/meat stratum of slaughtered animals |
| CN1922506A (en) * | 2004-02-19 | 2007-02-28 | 莱卡地球系统公开股份有限公司 | Hand-held device for measuring distances |
| CN104515472A (en) * | 2015-01-16 | 2015-04-15 | 中国农业大学 | Portable nondestructive detection method and device of pork dyad backfat thickness |
| CN104777486A (en) * | 2015-02-04 | 2015-07-15 | 杨军 | Handheld laser short-distance measurement instrument |
| CN205537519U (en) * | 2016-01-27 | 2016-08-31 | 长安大学 | Portable laser measuring tape |
| CN206331119U (en) * | 2016-12-09 | 2017-07-14 | 河南双汇投资发展股份有限公司 | A kind of amount of laser light fat instrument |
Non-Patent Citations (1)
| Title |
|---|
| "生猪双指标采购分级标准的研究";孟庆阳等;《肉类工业》(第1期);第8-11页 * |
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| CN106501814A (en) | 2017-03-15 |
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