CN101458082A - Forest digital compass - Google Patents
Forest digital compass Download PDFInfo
- Publication number
- CN101458082A CN101458082A CNA2009100424440A CN200910042444A CN101458082A CN 101458082 A CN101458082 A CN 101458082A CN A2009100424440 A CNA2009100424440 A CN A2009100424440A CN 200910042444 A CN200910042444 A CN 200910042444A CN 101458082 A CN101458082 A CN 101458082A
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- horizontal support
- displacement sensor
- angular displacement
- external control
- display screen
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Abstract
The invention discloses a forest digital compass, which comprises a horizontal engine seat and an external control part. The horizontal engine seat is provided with a compass tray and a display screen. The external control part is provided with an azimuth initialization key, a memory key, a power switch, a reading locking key, and a data communication interface. The horizontal engine seat is internally provided with an electronic control functional unit. The display screen and the external control part are connected with the electronic control functional unit which comprises a power module, a CCU powered with the power module, an angular displacement sensor electrically connected with the CCU, an amplifier and a memory. The angular displacement sensor is arranged on the rotational axle center of the horizontal seat engine. The forest digital compass uses the linkage mode that the rotation angle of the horizontal engine seat keeps in step with the rotation angle of the angular displacement sensor, can fast and accurately measure the azimuth of any target object in time, and obtains the digital parameters of the azimuth.
Description
Technical field
The invention belongs to surveying instrument, be specifically related to be used for the forest digital compass of forest inventory investigation measurement of azimuth.
Background technology
For forest inventory investigation, real works such as measurement of study plot boundary and sampling point lead-in wire location often will use the magnetic azimuth that forestry compass is measured point-to-point transmission.What forestry compass adopted is that traditional needle cooperates the read text scale dish to constitute, owing to most locations complexity, forestry compass is smart flat relatively more difficult, and people's naked eyes reading of forestry compass employing in the environment of forest mountain region, unavoidably there is reading inconvenience, the problem that reading is extensive.Therefore, forestry compass is the often difficult accuracy requirement that reaches the investigation regulation when measurement standard ground, mountain region mis-tie, and work efficiency is low.In order to overcome the above-mentioned existing problem of forestry compass, the utility model is to having done the improvement of the digital automatic reading of instrument on the existing forestry compass.With regard to present digital compass (or electronic compass) advanced technology with regard to, mainly contain three kinds, a kind of is to adopt magnetoresistive transducer, and shortcoming is the cost height, the peripheral circuit complexity, second kind be adopt that inductance sensor (string with) shortcoming is that sensitivity is low, precision is not high, a little less than the signal, the big and volume of consumable is not easy to do little, another kind is the employing light sensor, shortcoming is affected by environment big, be subject to disturb, and photochromics only possesses limited serviceable life, structure is more complicated also.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, high precision, high-level efficiency, forest digital compass simple to operation.
The object of the present invention is achieved like this: forest digital compass comprises horizontal support, horizontal support is provided with guide dials, display screen and external control component, external control component is provided with that position angle initialization key, storage are strong, power switch and reading brake key, and is provided with data communication interface; Horizontal base inner is provided with the electric control function unit; Display screen and external control component are electrically connected with the electric control function unit; The electric control function unit comprises power module, also comprises central controller, the angular displacement sensor that is electrically connected with central controller, amplifier and storer by the power module power supply; Angular displacement sensor is installed on the horizontal support axis of rotation.
The present invention has carried out on existing forestry compass basis that mechanical part improves and the electronic section function increases newly.Established angle displacement transducer on horizontal support axis of rotation has adopted the synchronous consistent interlock mode of the horizontal support anglec of rotation and the angular displacement sensor anglec of rotation, can measure the position angle of arbitrary target thing rapidly and accurately immediately.Azimuthal high-precision digital amount of reading, measuring modernization for forest survey provides hi-tech to measure equipment.
Characteristics of the present invention:
1, compare with the hyundai electronics box compass, instrument does not adopt expensive magnetoresistive transducer to look for northern location technology automatically, but adopts location, the positive north of compass mechanical type to make the directional reading digitizing, and is economical and practical.
2, the present invention's employing is the principle of angular displacement sensor, show through the substantive test assay, thick azimuth observation reading at ordinary times of instrument and instrument essence reading difference at ordinary times are very small, therefore, instrument need not to adopt twin shaft sensor or bubble precisely than square formula, instrument only needs thick flat the getting final product of naked eyes, and undoubtedly, instrument has greatly improved assize work efficiency and the adaptability in complicated forest environment.
3, measuring point of the present invention is fast, reading fast, information digitalization shows and storage.The present invention is through on probation, and measure azimuthal efficient and be forestry compass 11 times, measuring error has obtained good effect ± 0.9%.
Be further described below in conjunction with accompanying drawing and example, but the invention is not restricted to shown in this figure.
Description of drawings
Fig. 1 is the horizontal base outer structural representation of the present invention;
Fig. 2 is the horizontal base inner structural representation of the present invention;
Fig. 3 is an ECU (Electrical Control Unit) functional block diagram of the present invention.
Embodiment
As Fig. 1-shown in Figure 3, the present invention includes horizontal support 1, electric control function unit 2, guide dials 3, display screen 4 and external control component; Guide dials 3, display screen 4 are installed on above the horizontal support 1 with external control component; External control component comprises that position angle initialization key 7, storage are strong 8, power switch 6 and reading brake key 5, and is provided with data communication interface 11; Horizontal support 1 inside is provided with electric control function unit 2; Display screen 4 and external control component are electrically connected with electric control function unit 2; Electric control function unit 2 comprises power module 10, central controller 13, the angular displacement sensor 12 that is electrically connected with central controller 13, amplifier 14 and storer 15; The rotation axis of angular displacement sensor 12 is fixed on the centre rotational axis 16 of horizontal support 1 inside.
Described horizontal support 1 downside is mounted with and horizontally rotates stationary installation 19.
Described guide dials 3 is provided with needle 9, and the axis of guide dials 3 17 remains same straight line with horizontal support 1 axis 18, and initialization is precisely located when being used for position angle 0 degree and deciding direct north.
It is 0 set when spending that described position angle initialization key 7 is that tool azimuth is initialized as, storage strong 8 is to set when forward angle need be stored, reading brake key 5 is set when determining current observed bearing angular data, and it is set when disconnected that power switch 6 is control instrument power supplys.
Principle of work of the present invention:
On a certain observation station, after horizontal support is substantially flat, rotate horizontal support, at this moment the telescope that is positioned at horizontal upper part of the frame is done rotation synchronously with horizontal support, when the telescope boresight direction and the pointed direct north of compass are just consistent, at this moment press position angle initialization key, the instrument angle that angular displacement sensor is current is initialized as position angle 0 degree, if horizontal support turns clockwise, the instrumental azimuth angle variable then equals former position angle and adds level and revolve the biography angle, if the inhour rotation then equals the flat biography angle of revolving of former position angle diminishing.After the position angle initialization is finished, when aiming at the mark by the continuous left and right adjusting of telescope, the angular displacement sensor level is revolved the variation that passes angle and just can be shown in real time on display screen, at this moment press and just can show current goal object and instrument bearing data in line when the directional reading braking is good for, in like manner: the horizontal support of left and right adjusting finds the bearing data of required measurement on display screen, and the stationary installation that horizontally rotates by horizontal support fixes behind the instrument with regard to the needed linear directional of may observe then.
The course of work of the present invention:
Before the measurement, power switch 6 is opened, the present invention enters duty.Electric control function unit 2 sends the reading order and points out out the position angle to need the initializing signal instruction on display screen 4 to angular displacement sensor 12, next the first step is to do more flat substantially to horizontal support 1 earlier, rotate horizontal support 1 then, make the telescope that is positioned at horizontal support 1 top do rotation synchronously with horizontal support 1, when the needle 9 sensing direct norths of telescope boresight direction and guide dials 3 are just consistent, at this moment press position angle initialization key 7, instrument angular displacement sensor 12 current angles are set to 0 degree, and display screen 4 timely display orientation angle 0 number of degrees values also point out initialization to finish information; Second step was aiming measurement target working point, by telescope the horizontal support 1 continuous left rotation and right rotation of continuous left and right adjusting drive simultaneously with after aiming at the mark, at this moment press directional reading braking strong 5, the real-time angle numerical value of angular displacement sensor 12 is input to ECU (Electrical Control Unit), the ECU (Electrical Control Unit) calling program module calculates, obtain current azimuth value, output to display screen 4 and show.The 3rd step was to continue to open the reading braking to be good for 5, and the electric control function unit sends the reading orders to angular displacement sensor 12 once more, with the step in second step, can measure the bearing data of several target observation points successively at same survey station.In like manner: the horizontal support 1 of left and right adjusting finds the bearing data of required measurement on display screen 4, and the stationary installation 19 that horizontally rotates by horizontal support 1 fixes behind the instrument with regard to the needed linear directional of may observe then.The present invention also can multidataly store simultaneously, and can easily measurement data be outputed to and carry out data processing and utilization in the outer computer.
Claims (3)
1, a kind of forest digital compass, comprise horizontal support, horizontal support is provided with guide dials, display screen and external control component, it is characterized in that: external control component is provided with that position angle initialization key, storage are strong, power switch and reading brake key, and is provided with data communication interface; Horizontal base inner is provided with the electric control function unit; Display screen and external control component are electrically connected with the electric control function unit; The electric control function unit comprises power module, also comprises central controller, the angular displacement sensor that is electrically connected with central controller, amplifier and storer by the power module power supply; Angular displacement sensor is installed on the horizontal support axis of rotation.
2, forest digital compass as claimed in claim 1 is characterized in that: described horizontal support downside is mounted with and horizontally rotates stationary installation.
3, forest digital compass as claimed in claim 1 or 2 is characterized in that: the axis of described guide dials and horizontal support axis remain same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100424440A CN101458082A (en) | 2009-01-08 | 2009-01-08 | Forest digital compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100424440A CN101458082A (en) | 2009-01-08 | 2009-01-08 | Forest digital compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101458082A true CN101458082A (en) | 2009-06-17 |
Family
ID=40769083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100424440A Pending CN101458082A (en) | 2009-01-08 | 2009-01-08 | Forest digital compass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101458082A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153024A (en) * | 2016-08-31 | 2016-11-23 | 曹素华 | It is automatically positioned laser forest compass |
| CN106338279A (en) * | 2016-08-31 | 2017-01-18 | 曹素华 | Automatic positioning forest compass |
| CN111609828A (en) * | 2020-05-31 | 2020-09-01 | 胡圣浪 | Directional measuring equipment with improved structure |
-
2009
- 2009-01-08 CN CNA2009100424440A patent/CN101458082A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153024A (en) * | 2016-08-31 | 2016-11-23 | 曹素华 | It is automatically positioned laser forest compass |
| CN106338279A (en) * | 2016-08-31 | 2017-01-18 | 曹素华 | Automatic positioning forest compass |
| CN111609828A (en) * | 2020-05-31 | 2020-09-01 | 胡圣浪 | Directional measuring equipment with improved structure |
| CN111609828B (en) * | 2020-05-31 | 2022-01-18 | 胡圣浪 | Directional measuring equipment with improved structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090617 |