CN209014477U - A kind of portable Grassland Biomass noninvasive measurement device - Google Patents
A kind of portable Grassland Biomass noninvasive measurement device Download PDFInfo
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- CN209014477U CN209014477U CN201821430864.7U CN201821430864U CN209014477U CN 209014477 U CN209014477 U CN 209014477U CN 201821430864 U CN201821430864 U CN 201821430864U CN 209014477 U CN209014477 U CN 209014477U
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Abstract
The utility model discloses a kind of portable Grassland Biomass noninvasive measurement device, vegetative coverage and no-coverage can be distinguished in real time, and obtain vegetation coverage information, and can also obtain vegetation height information；Apparatus structure is simple, easy to carry, obtains biomass information in real time for the research of grassland Succession Trend and productive potentialities and related personnel field and provides technical support.
Description
Technical field
The utility model belongs to Grassland information acquisition technique field, and in particular to a kind of portable Grassland Biomass is not damaged
Measuring device.
Background technique
The measurement of Grassland Biomass is the important indicator of effective reflection meadow growing state, can for grassland Succession Trend and
Productive potentialities provide basic information.
The measurement of Grassland Biomass includes the measurement of Grass cover degree and the measurement of height, traditional Grassland Biomass measurement
The measurement of Grass cover degree and meadow elevation carrection are usually carried out respectively, and the resolving of biomass is then carried out under line.Wherein meadow
Coverage measurement generallys use photographic process, and meadow elevation carrection generallys use ruler mensuration and sensor measurement method, therefore its
It has the following problems: more people 1. being needed to operate；2. portability is not strong；3. biomass cannot be obtained in real time；4. operability is not strong；⑤
Measurement accuracy is not high.
Utility model content
In view of this, the purpose of the utility model is to provide a kind of portable Grassland Biomass noninvasive measurement device, energy
The enough convenient biomass information for obtaining vegetation.
A kind of portable Grassland Biomass noninvasive measurement device, including shell (10), RGB image obtain module (2), embedding
Enter formula signal-processing board (3), display screen (4) and handheld terminal (7)；
The RGB image obtains the RGB image that module (2) are used to obtain tested meadow；
The Embedded real-time signal processing plate (3) is used to have careless region and grass-free area according to what the RGB image identified,
And careless area coverage is obtained；
The display screen (4) is used to show the working condition and meadow area coverage of measuring device；
The handheld terminal (7) is fixed on shell (10).
It further, further include solid-state face battle array laser radar (1), for obtaining the relative distance image on tested meadow, and
The meadow height distribution histogram in meadow region is obtained according to relative distance image.
Further, the solid-state face battle array laser radar (1) includes laser emitting module (11), Laser emission lens group
(12), laser pick-off lens group (13), narrow band filter (14), integrated CMOS electro-optical distance measurement chip (15), light source driving circuit
Module (16) and range information processing module (17)；
Light source driving circuit module (16) driving laser emitting module (11) issues laser signal；And by Laser emission
Lens group (12) emits to meadow to be measured；Laser pick-off lens group (13) receives the laser signal of target reflection, through narrow band filter
(14) stray light is filtered out；Integrated CMOS electro-optical distance measurement chip (15) calculate solid-state face battle array laser radar (1) to meadow it is opposite away from
From image；The range information processing module (17) obtains the height distribution histogram on tested meadow.
Preferably, the solid-state face battle array laser radar (1) and RGB image obtain the bottom that module (2) are fixed on shell (10)
Portion.
Further, further include GPS module (6), be placed at the top of shell (10), for acquiring the GPS of current meadow position
Information.
Further, further include control button (5), be placed in the top of shell (10), control and measure device works.
It further, further include battery (8) and power module (9), for powering to measuring device.
The utility model has the following beneficial effects:
A kind of portable Grassland Biomass noninvasive measurement device of the utility model, can distinguish in real time vegetative coverage and
No-coverage, and vegetation coverage information is obtained, and vegetation height information can also be obtained；Apparatus structure is simple, carries
It is convenient, biomass information is obtained in real time and provides skill for the research of grassland Succession Trend and productive potentialities and related personnel field
Art is supported.
Detailed description of the invention
Fig. 1 is the schematic diagram of portable Grassland Biomass noninvasive measurement device；
Fig. 2 is solid-state face battle array laser radar structural schematic diagram；
Fig. 3 (a) is tested meadow RGB image；
Fig. 3 (b) is tested meadow medium-height grass ground region respective heights simulation distribution histogram.
Wherein, 1- solid-state face battle array laser radar, 2-RGB image collection module, 3- embedded signal control processing board, 4- are aobvious
Display screen, 5- control button, 6-GPS module, 7- handheld terminal, 8- battery, 9- power module, 10- shell, 11- laser emitting module,
12- Laser emission lens group, 13- laser pick-off lens group, 14- narrow band filter, 15- integrated CMOS electro-optical distance measurement chip, 16-
Light source driving circuit module, 17- range information processing module.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
The utility model provides a kind of portable Grassland Biomass noninvasive measurement device, as shown in Figure 1, including shell
10, solid-state face battle array laser radar 1, RGB image obtain module 2, embedded signal controls processing board 3, display screen 4, control button
5, GPS module 6, handheld terminal 7, battery 8 and power module 9；Wherein, solid-state face battle array laser radar 1 and RGB image obtain module
2 are fixed on the bottom of shell 10, for obtaining the relative distance image and RGB image on tested meadow；Display screen 4 is placed in shell 10
A side on, for showing the working condition and measurement result of measuring device；Battery 8 and power module 9 are placed in shell 10
Inside, for give measuring device power supply；GPS module 6 is placed in 10 top of shell, and the GPS for acquiring current meadow position believes
Breath；Handheld terminal 7 and control button 5 are placed in the outside of shell 10, work for hand-held device and control device；Embedded letter
Number control processing board 3 is placed in the inside of shell 10, is separately connected solid-state face battle array laser radar 1, RGB image obtains module 2, display
Screen 4, GPS module 6, power module 9 and control button 5, for controlling each module work, acquiring each module information and resolving biology
Measure information.
Wherein, as shown in Fig. 2, solid-state face battle array laser radar 1 by laser emitting module 11, Laser emission lens group 12, swash
Optical receiver lens group 13, narrow band filter 14, integrated CMOS electro-optical distance measurement chip 15, light source driving circuit module 16 and apart from letter
Processing module 17 is ceased to form.
When biomass measuring, measuring device is placed in by overlying regions to be measured by handheld terminal 7 first, then passes through device top
Portion's control button 5 realizes that meadow RGB image obtains, relative distance image obtains, GPS information obtains, coverage calculates, altimeter
It calculates and biomass calculates.
The meadow elevation carrection scheme that the utility model uses uses solid-state face battle array 1 distance measuring method of laser radar, Gu
The light source driving circuit module 16 of state face battle array laser radar 1 drives laser emitting module 11 to issue laser signal；And it is sent out by laser
Lens group 12 is penetrated to field emission to be measured；Laser pick-off lens group 13 receives the laser signal of target reflection, through narrow band filter
14 filter out stray light；Integrated CMOS electro-optical distance measurement chip 15 integrates echo-signal progress leggy window charge accumulation and calculates phase
Potential difference, in conjunction with the relative distance image of light velocity calculating radar to meadow；As shown in Fig. 3 (a) and (b)；Range information processing module
17 find meadow minimum point (ground) by relative distance image, finally according between relative distance image and meadow minimum point
Relationship can form the distribution histogram in meadow region, and the full height on tested meadow can be absolutely proved by distribution histogram
Distribution.
Wherein, integrated CMOS photoelectric processing chip is integrated and is obtained opposite to echo-signal progress leggy window charge accumulation
The detailed process of range image are as follows:
Each pixel of integrated CMOS photoelectric processing chip is obtained according to 4 out of phase windows successively receives echo-signal
To the integral charge Q of 4 groups of outs of phase1、Q2、Q3And Q4；Wherein, Q1、Q2、Q3And Q4Respectively tune of the phase window relative to reflection
The travel(l)ing phase of optical signal processed be 0 degree, 180 degree, 90 degree and move 270 degree when integral charge；Optical signal is calculated integrated
Round-trip phase difference between each pixel and meadow of CMOS photoelectric processing chip
Wherein ∑ Q1、∑Q2、∑Q3With ∑ Q4The respectively multiple accumulation results of integral charge.
Then according to the corresponding phase difference of each pixelTwo-way time t is calculated indirectly,Further according to light
Fast c calculates the distance between each pixel and meadow of integrated CMOS photoelectric processing chip, thus obtains solid-state face battle array laser
The distance between radar and meadow image.
Range information processing module 17 calculates the detailed process of the distribution histogram in meadow region are as follows:
The corresponding distance of each pixel in the region of meadow is searched in range image, and the corresponding distance of each pixel is multiplied
WithObtain di', wherein angleIndicate the angle of laser radar center pixel position and each pixel position；In di' in
Maximizing dmax；The meadow region Zhong Youcao and grass-free area that module 2 identifies are obtained according to RGB image, it will be in grass-free area
The range information of each pixel is set to dmax；Further according to di' and dmaxObtain true meadow height dmax-di′；According to meadow height
Draw the height distribution histogram on tested meadow.
The Grass cover degree measurement scheme that the utility model uses are as follows: the RGB image described first obtains module 2 and passes through camera shooting
Head acquires regional image information to be measured, and 3 plug-in of Embedded real-time signal processing control panel is extracted by image processing algorithm
The RGB image information of image sample prescription corresponding region (i.e. image fixed pixel position) then carries out the region RGB image information
Certain Threshold segmentation and binary conversion treatment finally calculates meadow and non-meadow proportion according to binary conversion treatment result, obtains
Meadow has careless area coverage out.
The Embedded real-time signal processing control panel 3 is soft for controlling each module work and operation Grassland Biomass measurement
Part, can real-time display current working condition and metrical information, run android on the Embedded real-time signal processing control panel 3
System, model are unlimited.
In conclusion the above is only the preferred embodiments of the present utility model only, it is not intended to limit the utility model
Protection scope.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all wrap
Containing being within the protection scope of the utility model.
Claims (7)
1. a kind of portable Grassland Biomass noninvasive measurement device, which is characterized in that obtained including shell (10), RGB image
Module (2), Embedded real-time signal processing plate (3), display screen (4) and handheld terminal (7)；
The RGB image obtains the RGB image that module (2) are used to obtain tested meadow；
What the Embedded real-time signal processing plate (3) was used to be identified according to the RGB image has careless region and grass-free area, and obtains
To there is careless area coverage；
The display screen (4) is used to show the working condition and meadow area coverage of measuring device；
The handheld terminal (7) is fixed on shell (10).
2. a kind of portable Grassland Biomass noninvasive measurement device as described in claim 1, which is characterized in that further include solid
State face battle array laser radar (1) obtains meadow area for obtaining the relative distance image on tested meadow, and according to relative distance image
The meadow height distribution histogram in domain.
3. a kind of portable Grassland Biomass noninvasive measurement device as claimed in claim 2, which is characterized in that the solid-state
Face battle array laser radar (1) includes laser emitting module (11), Laser emission lens group (12), laser pick-off lens group (13), narrow
Band optical filter (14), integrated CMOS electro-optical distance measurement chip (15), light source driving circuit module (16) and range information processing module
(17)；
Light source driving circuit module (16) driving laser emitting module (11) issues laser signal；And by Laser emission lens
Group (12) emits to meadow to be measured；Laser pick-off lens group (13) receives the laser signal of target reflection, through narrow band filter (14)
Filter out stray light；Integrated CMOS electro-optical distance measurement chip (15) calculates the relative distance figure that solid-state face battle array laser radar (1) arrives meadow
Picture；The range information processing module (17) obtains the height distribution histogram on tested meadow.
4. a kind of portable Grassland Biomass noninvasive measurement device as claimed in claim 2 or claim 3, which is characterized in that described
Solid-state face battle array laser radar (1) and RGB image obtain the bottom that module (2) are fixed on shell (10).
5. a kind of portable Grassland Biomass noninvasive measurement device as described in claim 1, which is characterized in that further include
GPS module (6) is placed at the top of shell (10), for acquiring the GPS information of current meadow position.
6. a kind of portable Grassland Biomass noninvasive measurement device as described in claim 1, which is characterized in that further include control
Key (5) processed, is placed in the top of shell (10), control and measure device works.
7. a kind of portable Grassland Biomass noninvasive measurement device as described in claim 1, which is characterized in that further include electricity
Pond (8) and power module (9), for powering to measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821430864.7U CN209014477U (en) | 2018-08-31 | 2018-08-31 | A kind of portable Grassland Biomass noninvasive measurement device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821430864.7U CN209014477U (en) | 2018-08-31 | 2018-08-31 | A kind of portable Grassland Biomass noninvasive measurement device |
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| CN209014477U true CN209014477U (en) | 2019-06-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358341A (en) * | 2018-08-31 | 2019-02-19 | 北京理工大学 | A kind of portable Grassland Biomass noninvasive measurement device |
| CN114429591A (en) * | 2022-01-26 | 2022-05-03 | 中国农业科学院草原研究所 | Vegetation biomass automatic monitoring method and system based on machine learning |
-
2018
- 2018-08-31 CN CN201821430864.7U patent/CN209014477U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358341A (en) * | 2018-08-31 | 2019-02-19 | 北京理工大学 | A kind of portable Grassland Biomass noninvasive measurement device |
| CN114429591A (en) * | 2022-01-26 | 2022-05-03 | 中国农业科学院草原研究所 | Vegetation biomass automatic monitoring method and system based on machine learning |
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