CN202903177U - Laser range finder - Google Patents
Laser range finder Download PDFInfo
- Publication number
- CN202903177U CN202903177U CN 201220553701 CN201220553701U CN202903177U CN 202903177 U CN202903177 U CN 202903177U CN 201220553701 CN201220553701 CN 201220553701 CN 201220553701 U CN201220553701 U CN 201220553701U CN 202903177 U CN202903177 U CN 202903177U
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- range finder
- laser
- laser range
- information acquisition
- rotating shafts
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- 238000012545 processing Methods 0.000 claims description 17
- 238000005259 measurement Methods 0.000 claims description 9
- 238000012360 testing method Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
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Abstract
The utility model relates to a laser range finder which comprises a body and two laser transmitters, wherein two rotary shafts are arranged on the body and are separated in a definite distance; the shaft lines of the two rotary shafts are in parallel; the two laser transmitters are respectively mounted on the two rotary shafts and can respectively rotate around the shaft lines corresponding to the two rotary shafts; and laser beams sent by the two laser transmitters are on the same plane. The laser range finder provided by the utility model is low in cost and strong in anti-interference capability.
Description
Technical field
The utility model relates to the surveying instrument technical field, particularly a kind of laser range finder.
Background technology
In scientific experiment and engineer operation, often need to measure the position relationship between the two articles, the simplest method utilizes the chi tool directly to find range exactly.Yet the limited length of chi tool is difficult to measure long distance, and when the obstacle that exists river, covered conduit etc. to go beyond in the measuring route, the chi tool just is difficult to direct range finding, operates very inconvenient.
In order to address the above problem, a kind of device that uses laser distance measuring has appearred in prior art, this device utilizes a generating laser that Laser emission is surperficial to object under test, laser is reflexed near the generating laser laser pickoff by object under test, come and go the required time by the time recorder recording laser, and record laser range finder to the distance on object under test surface by calculating.
This laser ranging system can solve the limitation of chi tool range finding, but still have the following disadvantages: 1. because the laser light velocity is very fast, the time that laser comes and goes is very short, this distance-finding method has very high requirement for the precision of the instruments such as generating laser, time record instrument, otherwise just can't guarantee measuring accuracy, therefore, the cost of this class laser range finder is generally all very high, can't carry out widely engineering popularization; 2. when many laser range finders were worked simultaneously, laser pickoff was easy to receive the laser signal of other stadimeters, will affect measurement result like this, so the poor anti jamming capability of this class laser range finder.
The utility model content
Technical problem to be solved in the utility model is the very high and poor anti jamming capability of laser range finder cost of the prior art, and the laser range finder that a kind of cost is lower and antijamming capability is stronger is provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
A kind of laser range finder comprises:
Body is provided with two rotating shafts on the described body, two described rotating shafts are spaced a distance, and the axis of two described rotating shafts is parallel to each other;
Two generating lasers are installed in respectively in two described rotating shafts, and two described generating lasers can be respectively rotate around the axis of corresponding described rotating shaft, and the laser beam that two described generating lasers send is positioned at same plane.
In the above-mentioned laser range finder, also comprise:
Two index dials are the semicircle take the axis of two described rotating shafts as the center of circle, are provided with angle value on the described index dial.
In the above-mentioned laser range finder, described generating laser has pointer; Described pointer cooperates sensing different angles value with described index dial.
In the above-mentioned laser range finder, also comprise:
Information acquisition unit is arranged on described body interior, and described information acquisition unit is used for gathering two described generating lasers based on the deflection angle of two described rotating shaft core lines, and this deflection angle is converted into digital signal;
Display screen is used for the distance that display measurement obtains, and described display screen is arranged on described body surface;
Processing unit is arranged on described body interior, and the information input terminal of described processing unit is electrically connected with the information output of described information acquisition unit, and the information output of described processing unit is electrically connected with the information input terminal of described display screen.
In the above-mentioned laser range finder, described information acquisition unit carries out information acquisition to deflection angle discontinuously.
In the above-mentioned laser range finder, described information acquisition unit carried out the primary information collection every 10 seconds to deflection angle.
In the above-mentioned laser range finder, be provided with knob on the described generating laser.
Technique scheme of the present utility model has the following advantages compared to existing technology:
1. laser range finder of the present utility model comprises body and two generating lasers, is provided with two rotating shafts on the body, and two rotating shafts are spaced a distance, and the axis of two rotating shafts is parallel to each other; Two generating lasers are installed in respectively in two rotating shafts, and two generating lasers can be respectively rotate around the axis of corresponding rotating shaft, and the laser beam that two generating lasers send is positioned at same plane.Survey crew is by adjusting two generating lasers, two bundle laser are converged on the object under test surface, this moment, line and the two bundle laser of two rotating shaft cores surrounded a triangle jointly, after the angle of measuring two relative two rotating shaft core lines of generating laser, can obtain the air line distance of object under test surface distance laser range finder by the account form of plane geometry.Such design, not needing to consider the light velocity of laser does not need the high precision instruments such as setup times registering instrument yet, and cost is lower, is beneficial to widely engineering and promotes; And, laser range finder of the present utility model does not need to receive the laser of reflection in ranging process, therefore do not need to arrange laser pickoff, can not occur also certainly that the laser that other generating lasers send is received in misconnection and the situation that affects measurement result, antijamming capability is strong.
2. laser range finder of the present utility model also comprises two index dials, and two index dials are the semicircle take the axis of two rotating shafts as the center of circle, are provided with angle value on the index dial; Generating laser has pointer, and pointer cooperates sensing different angles value with index dial.Such design, survey crew can directly read the deflection angle of generating laser at laser range finder, very convenient, and does not need to carry the extra equipment such as protractor, error in the time of also can reducing simultaneously survey crew and measure has improved the precision of measurement data.
3. laser range finder of the present utility model, also comprise information acquisition unit, processing unit and display screen, information acquisition unit is used for gathering two generating lasers based on the deflection angle of two rotating shaft core lines, and this deflection angle is converted into the digital signal input processing unit, the distance that processing unit calculates object under test directly is presented on the display screen.Such design, direct range of a signal on the display screen, and do not need survey crew to carry out manual calculations, even non-technical personnel also can directly use, increased versatility; And all measurement, evaluation work are finished by machine, have reduced measuring error, have further improved the precision of measurement data.
4. laser range finder of the present utility model is provided with knob on the generating laser.The angle that survey crew can the direct control knob be regulated generating laser has avoided direct twisting generating laser to its damage that causes, the life-span of having improved laser range finder.
Description of drawings
For content of the present utility model is more likely to be clearly understood, the below is described in further detail the utility model, wherein according to specific embodiment of the utility model also by reference to the accompanying drawings
Fig. 1 is the structural representation of the utility model laser range finder;
Fig. 2 is that the utility model laser range finder is apart from the Computing Principle synoptic diagram;
Fig. 3 is that the utility model laser range finder is apart from the elevation principle synoptic diagram.
Reference numeral is expressed as among the figure: 1-body, 2-generating laser, 21-knob, 22-pointer, 3-rotating shaft, 4-index dial, 5-display screen, 6-processing unit, 7-information acquisition unit.
Embodiment
Embodiment one
As shown in Figure 1, be the preferred embodiment of the utility model laser range finder.Described laser range finder comprises: body 1, two generating lasers 2, rotating shaft 3, index dial 4, display screen 5, processing unit 6 and information acquisition units 7.
Be provided with 3, two described rotating shafts 3 of two described rotating shafts on the described body 1 and be spaced a distance, and the axis of two described rotating shafts 3 is parallel to each other.Two described index dials 4 are the semicircle take the axis of two described rotating shafts 3 as the center of circle, are provided with angle value on the described index dial 4.
Two described generating lasers 2 are installed in respectively in two described rotating shafts 3, and two described generating lasers 2 can be respectively rotate around the axis of corresponding described rotating shaft 3, and the laser beam that two described generating lasers 2 send is positioned at same plane.Be provided with knob 21 and pointer 22 on the described generating laser 2.
Described knob 21 is for the angle of regulating described generating laser 2; Described pointer 22 cooperates sensing different angles value with described index dial 4.In the present embodiment, described pointer 22 is arranged on an end of described generating laser 2.
Described information acquisition unit 7 is arranged on described body 1 inside, is used for gathering two described generating lasers 2 based on the deflection angle of two described rotating shaft 3 axial connecting lines, and this deflection angle is converted into digital signal.In the present embodiment, described information acquisition unit 7 carries out information acquisition to deflection angle discontinuously.Further, described information acquisition unit 7 carried out the primary information collection every 10 seconds to deflection angle.
Described display screen 5 is used for the distance that display measurement obtains, and described display screen 5 is arranged on described body 1 surface.
Described processing unit 6 is arranged on described body 1 inside, and the information input terminal of described processing unit 6 is electrically connected with the information output of described information acquisition unit 7, and the information output of described processing unit 6 is electrically connected with the information input terminal of described display screen 5.
As shown in Figure 2, be that the utility model laser range finder is apart from the Computing Principle synoptic diagram.The P point is that two bundle laser are at the joint on object under test surface among the figure, h is testing distance, d is the spacing in two described rotating shaft 3 axle center, α and β are respectively that two described generating lasers 2 are based on the deflection angle of two described rotating shaft 3 axial connecting lines, can obtain testing distance h=d/ (ctg α+ctg β) according to the geometric relationship among Fig. 2, (wherein ctg α is the cotangent value of α, and ctg β is the cotangent value of β).
When using described laser range finder measuring distance, rotating described knob 21 makes the laser beam of two described generating lasers 2 overlap on the determinand surface, 7 couples of deflection angle α of described information acquisition unit and β carry out information acquisition, and the value of α and β inputted described processing unit 6, described processing unit 6 calculates the value of testing distance h according to formula h=d/ (ctg α+ctg β), and is shown the value of testing distance h by described display screen 5.
Described laser range finder of the present utility model can also be used to measure the height of metope.As shown in Figure 3, described laser range finder is arranged on the O point, and metope is P
0P '.At first measure the O point to P by described laser range finder
0Distance h
1, then measure the O point to the distance h of P ' point
2, obtain the value of metope height H by geometric relationship.
Embodiment two
Different from embodiment one, in the present embodiment, a described generating laser 2 is fixed on the described body 1, and namely the deflection angle α of this described generating laser 2 is definite value.Further, deflection angle α is 90.When measuring distance, only need the other described generating laser 2 of rotation that laser beam is overlapped on the determinand surface, 7 couples of deflection angle β carry out information acquisition by described information acquisition unit.When α is 90, testing distance h=d*tg β.
In other embodiments, described laser range finder can also not arrange described index dial 4, correspondingly, also described pointer 22 can be set on the described generating laser 2, and this moment, survey crew directly read apart from getting final product by described display screen 5.
In other embodiments, described laser range finder can also not arrange described display screen 5, described processing unit 6 and described information acquisition unit 7.This moment, survey crew can and manually calculate distance by the manual measurement angle.
In other embodiments, described pointer 22 can also be arranged on the side of described generating laser 2.
In other embodiments, the time interval that 7 pairs of deflection angles of described information acquisition unit carry out information acquisition can also be 5 seconds, 15 seconds, 20 seconds or more, perhaps carries out in real time information acquisition, does not all affect the realization of the utility model purpose.
Obviously, above-described embodiment only is for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And the apparent variation of being extended out thus or change still are among the protection domain of the utility model creation.
Claims (7)
1. a laser range finder is characterized in that, comprising:
Body (1) is provided with two rotating shafts (3) on the described body (1), two described rotating shafts (3) are spaced a distance, and the axis of two described rotating shafts (3) is parallel to each other;
Two generating lasers (2), be installed in respectively in two described rotating shafts (3), the axis that two described generating lasers (2) can center on respectively corresponding described rotating shaft (3) rotates, and the laser beam that two described generating lasers (2) send is positioned at same plane.
2. laser range finder according to claim 1 is characterized in that, also comprises:
Two index dials (4) are the semicircle take the axis of two described rotating shafts (3) as the center of circle, and described index dial is provided with angle value on (4).
3. laser range finder according to claim 2, it is characterized in that: described generating laser (2) has pointer (22); Described pointer (22) cooperates sensing different angles value with described index dial (4).
4. arbitrary described laser range finder is characterized in that according to claim 1-3, also comprises:
Information acquisition unit (7), be arranged on described body (1) inside, described information acquisition unit (7) is used for gathering two described generating lasers (2) based on the deflection angle of two described rotating shafts (3) axial connecting line, and this deflection angle is converted into digital signal;
Display screen (5) is used for the distance that display measurement obtains, and described display screen (5) is arranged on described body (1) surface;
Processing unit (6), be arranged on described body (1) inside, the information input terminal of described processing unit (6) is electrically connected with the information output of described information acquisition unit (7), and the information output of described processing unit (6) is electrically connected with the information input terminal of described display screen (5).
5. laser range finder according to claim 4, it is characterized in that: described information acquisition unit (7) carries out information acquisition to deflection angle discontinuously.
6. laser range finder according to claim 5, it is characterized in that: described information acquisition unit (7) carried out the primary information collection every 10 seconds to deflection angle.
7. laser range finder according to claim 6 is characterized in that: be provided with knob (21) on the described generating laser (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220553701 CN202903177U (en) | 2012-10-26 | 2012-10-26 | Laser range finder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220553701 CN202903177U (en) | 2012-10-26 | 2012-10-26 | Laser range finder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202903177U true CN202903177U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220553701 Expired - Fee Related CN202903177U (en) | 2012-10-26 | 2012-10-26 | Laser range finder |
Country Status (1)
| Country | Link |
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| CN (1) | CN202903177U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891842A (en) * | 2016-03-28 | 2016-08-24 | 上海交通大学 | Height and distance measuring apparatus based on camera and laser emitter |
| CN106546216A (en) * | 2016-11-01 | 2017-03-29 | 广州视源电子科技股份有限公司 | Distance measuring method and device, camera and mobile terminal |
| CN106706569A (en) * | 2017-02-07 | 2017-05-24 | 中国人民解放军63889部队 | Measuring system and method for shadowing effect of smoke screen on laser |
| CN106940170A (en) * | 2017-03-07 | 2017-07-11 | 华东交通大学 | A kind of contactless Platform Construction Clearance double excitation telemetry |
| CN108291809A (en) * | 2015-11-30 | 2018-07-17 | 喜利得股份公司 | Method for the vertical axis for examining and/or calibrating rotary laser |
| CN108917598A (en) * | 2018-06-28 | 2018-11-30 | 武汉华星光电技术有限公司 | A kind of wet equipment and its sensing device |
| CN112587825A (en) * | 2021-03-02 | 2021-04-02 | 上海建工集团股份有限公司 | Safety management and control system and method for high-altitude operation |
| CN112933456A (en) * | 2021-03-02 | 2021-06-11 | 上海建工集团股份有限公司 | Safety monitoring system and method for construction safety belt attachment state |
| PL449152A1 (en) * | 2024-07-08 | 2026-01-12 | Zachodniopomorski Uniwersytet Technologiczny W Szczecinie | Device for determining the parallelism of lines and distances relative to an object |
| PL449151A1 (en) * | 2024-07-08 | 2026-01-12 | Zachodniopomorski Uniwersytet Technologiczny W Szczecinie | Device for measuring the distance to an object |
-
2012
- 2012-10-26 CN CN 201220553701 patent/CN202903177U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108291809A (en) * | 2015-11-30 | 2018-07-17 | 喜利得股份公司 | Method for the vertical axis for examining and/or calibrating rotary laser |
| CN105891842A (en) * | 2016-03-28 | 2016-08-24 | 上海交通大学 | Height and distance measuring apparatus based on camera and laser emitter |
| CN106546216A (en) * | 2016-11-01 | 2017-03-29 | 广州视源电子科技股份有限公司 | Distance measuring method and device, camera and mobile terminal |
| CN106706569A (en) * | 2017-02-07 | 2017-05-24 | 中国人民解放军63889部队 | Measuring system and method for shadowing effect of smoke screen on laser |
| CN106706569B (en) * | 2017-02-07 | 2024-04-26 | 中国人民解放军63895部队 | System and method for measuring shielding effect of smoke curtain on laser |
| CN106940170A (en) * | 2017-03-07 | 2017-07-11 | 华东交通大学 | A kind of contactless Platform Construction Clearance double excitation telemetry |
| CN108917598A (en) * | 2018-06-28 | 2018-11-30 | 武汉华星光电技术有限公司 | A kind of wet equipment and its sensing device |
| CN112587825A (en) * | 2021-03-02 | 2021-04-02 | 上海建工集团股份有限公司 | Safety management and control system and method for high-altitude operation |
| CN112933456A (en) * | 2021-03-02 | 2021-06-11 | 上海建工集团股份有限公司 | Safety monitoring system and method for construction safety belt attachment state |
| CN112933456B (en) * | 2021-03-02 | 2022-07-01 | 上海建工集团股份有限公司 | Safety monitoring system and method for construction safety belt attachment state |
| PL449152A1 (en) * | 2024-07-08 | 2026-01-12 | Zachodniopomorski Uniwersytet Technologiczny W Szczecinie | Device for determining the parallelism of lines and distances relative to an object |
| PL449151A1 (en) * | 2024-07-08 | 2026-01-12 | Zachodniopomorski Uniwersytet Technologiczny W Szczecinie | Device for measuring the distance to an object |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20131026 |