CN104542551A - Automatic weed removal method - Google Patents
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- CN104542551A CN104542551A CN201510020318.0A CN201510020318A CN104542551A CN 104542551 A CN104542551 A CN 104542551A CN 201510020318 A CN201510020318 A CN 201510020318A CN 104542551 A CN104542551 A CN 104542551A
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Abstract
The invention relates to an automatic weed removal method. The automatic weed removal method can comprise the steps that (1) an automatic weed removal system is provided, and comprises a weeding device, a motor, a caterpillar type base plate, a motor driving device, a weed detection device and a DSP, wherein the caterpillar type base plate is driven by the motor, the motor driving device provides a motor driving signal for the motor so as to control the rotating speed of the motor, the weed detection device shoots farmland in front of the system to obtain farmland images, and conducts weed detection on the farmland images, and the DSP is connected with the weeding device, the motor driving device and the weed detection device, and has control over the weeding device and the motor driving device on the basis of the detection result of the weed detection device; (2) the automatic weed removal system is operated.
Description
Technical field
The present invention relates to farmland management field, particularly relate to a kind of weeds automatic cleaning method.
Background technology
Weeds are very large to the murrain of normal plantation, not only show to fight for nutrition aspect with crops, and in the insect pest that spreads disease, to affect in water conservancy construction etc. all severe jamming farmland management orders of farmland planting department.
In order to reduce the weeds that field frequently occurs, the farmland planting department of various places also adopts different weeding systems one after another, comprise the regular artificial weeding of scheduling job personnel, such as at slack seasons between organize large-scale artificial weeding movable, or use the directed weeding of mechanized manner, such as use hand-held cultivator or towed weeding apparatus.But these weeding systems all exist certain drawback: the manpower of the former at substantial, and weeding ratio is low; The latter, while a large amount of material resources of use, also needs certain manpower, and weeding region is restricted simultaneously.As for the chemical weed control mode of early application, also prohibited by many countries and regions because pesticide pollution is serious.
Therefore, need a kind of weeds automatic cleaning method, while not needing artificial operation, according to the concrete growing state of farmland weed, can suit measures to local conditions, implement the weeding means of different dynamics, accomplish the full-automation that weeds are cleared up.
Summary of the invention
In order to solve the problem, the invention provides a kind of weeds automatic cleaning method, automatically the position of weeds, is accurately determined by IMAQ and recognition technology, the dynamics needing process and process is determined whether according to the area of weeds, also accomplish that the obstructiveless of described cleaning system in field passes through by infrared distance measuring technology and caterpillar chassis technology simultaneously, whole process does not need artificial Attended Operation, improves the efficiency of weeding, reduces the weeding cost of farmland management department.
According to an aspect of the present invention, provide a kind of weeds automatic cleaning method, the method can comprise: 1) provide a kind of weeds Automatic clearance system, described system comprises weeding apparatus, motor, caterpillar chassis, motor driving apparatus, weeds checkout equipment and digital signal processor DSP, described caterpillar chassis is by described driven by motor, described motor driving apparatus provides motor drive signal to control the rotating speed of motor for described motor, described weeds checkout equipment performs shooting to obtain farmland image to farmland, described system front, and weeds detection is carried out to described farmland image, described digital signal processor and described weeding apparatus, described motor driving apparatus is connected respectively with described weeds checkout equipment, testing result based on described weeds checkout equipment controls described weeding apparatus and described motor driving apparatus, 2) described system is run.
More specifically, in described weeds Automatic clearance system, also comprise: user input device, for the operation according to user, input weeds area threshold, weeds upper limit gray threshold and weeds lower limit gray threshold, described weeds upper limit gray threshold and described weeds lower limit gray threshold are used for the weeds in image and background separation, portable hard drive, is connected with described user input device, to receive and to store described weeds area threshold, described weeds upper limit gray threshold and described weeds lower limit gray threshold, four infrared distance measuring sensors, lay respectively at four positions all around of described caterpillar chassis, for detecting the obstacle distance of described system all around four direction respectively, wireless transmitting-receiving equipments, sets up two-way wireless communication link with the agricultural management platform of far-end, for receiving the control instruction that described agricultural management platform sends, described weeding apparatus is eight claw weeding mechanisms, comprises a scalable device and eight shovel cutter heads, and when weeding, described scalable device drives eight shovel cutter heads to catch weeds to clear up, described weeds checkout equipment comprises camera and image processor, described camera is positioned at the front end of described system, for performing shooting to obtain farmland image to farmland, described system front, described image processor is connected respectively with described camera and described portable hard drive, weeds detection is carried out to described farmland image, described image processor comprises self adaptation recursive filtering unit, contrast strengthen unit, gray processing processing unit, image segmentation unit and image identification unit, described self adaptation recursive filtering unit is connected with described camera, the process of self adaptation recursive filtering is performed to described farmland image, to obtain filtering image, described contrast strengthen unit is connected with described self adaptation recursive filtering unit, contrast enhancement processing is performed to described filtering image, image is strengthened to export, described gray processing processing unit is connected with described contrast strengthen unit, gray processing process is performed to described enhancing image, with output gray level image, described image segmentation unit is connected respectively with described gray processing processing unit and described portable hard drive, for the pixel identification of gray value in described gray level image between described weeds upper limit gray threshold and described weeds lower limit gray threshold is formed weeds subgraph, described image identification unit is connected respectively with described image segmentation unit and described portable hard drive, the area calculating described weeds subgraph is using as weeds area, using the position of form center of the weeds shape in described weeds subgraph as weeds center, and when described weeds area is more than or equal to described weeds area threshold, send and there is weeds signal and export described weeds center, when described weeds area is less than described weeds area threshold, send without weeds signal, described digital signal processor and described camera, described weeding apparatus, described motor driving apparatus, described four infrared distance measuring sensors are connected respectively with described image identification unit, obstacle distance according to the four direction all around received keeps away barrier signal to described motor driving apparatus and the transmission of described caterpillar chassis, described barrier signal of keeping away includes the angle of turn sending to the motor speed of described motor driving apparatus He send to described caterpillar chassis, described digital signal processor also receive there is weeds signal time, send to described motor driving apparatus and stop motor operation signal, control described weeding apparatus based on described weeds center to move to the actual position place of described weeds, based on the weeding scope of weeding apparatus described in described weeds area control, export described farmland image simultaneously, wherein, described wireless transmitting-receiving equipments is connected with described digital signal processor, there is weeds signal by described or describedly send to described agricultural management platform without weeds signal, and receive described there is weeds signal time, the farmland image wireless forwarded by described digital signal processor sends to described agricultural management platform, described digital signal processor is connected with described weeding apparatus, described motor driving apparatus, described four infrared distance measuring sensors and described image identification unit respectively by serial ports, is connected with described camera by parallel port, described digital signal processor also comprises condensing encoder, with before the image of output described farmland, performs the compression of images based on MPEG-2 coding standard to described farmland image.
More specifically, in described weeds Automatic clearance system, described motor is direct current generator, and its rated power is 90W.
More specifically, in described weeds Automatic clearance system, the width of described caterpillar chassis is 40 centimetres.
More specifically, in described weeds Automatic clearance system, described self adaptation recursive filtering unit, described contrast strengthen unit, described gray processing processing unit, described image segmentation unit and described image identification unit adopt different fpga chips to realize respectively.
More specifically, in described weeds Automatic clearance system, described serial ports is RS-232 serial communication interface, and described parallel port is eight parallel-by-bit I/O mouths of described digital signal processor.
More specifically, in described weeds Automatic clearance system, described digital signal processor, also when receiving without weeds signal, sends starter motor run signal to described motor driving apparatus.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the block diagram of the weeds Automatic clearance system illustrated according to an embodiment of the present invention.
Embodiment
Below with reference to accompanying drawings the embodiment of weeds Automatic clearance system of the present invention is described in detail.
The weeding system in the past the most generally used is spraying pesticide in farmland, kills the weeds of targeted species targetedly, safeguards the healthy growth of normal crops.This mode is widely used because of easy to use, and even some farmland management departments adopt the mode large area of machinery to spray insecticide.Although agricultural chemicals weeding has instant effect, advantage that efficiency is high to a certain extent, but, on the one hand, a large amount of uses of agricultural chemicals bring chemical contamination to natural environment, Long-Time Service, polluting can be more and more serious, and on the other hand, the use of agricultural chemicals also can affect to the growth of normal crops.
In order to avoid agricultural chemicals is to the injury of natural environment and crops, even make laws and prohibit the use agricultural chemicals weeding in some countries and regions, like this, weeding system of the prior art is just concentrated as artificial weeding and mechanization weeding two kinds of modes, the former needs to use a large amount of manpowers to perform this task of weeding, and efficiency is the slowest, the latter's weeding ratio is very fast, but the area of weeding is by large restriction, weeding just cannot be carried out in the position that some big machineries cannot arrive, meanwhile, the weeding of mechanization still needs personnel to participate in.
Weeds Automatic clearance system of the present invention, overcome the drawback of the various weeding systems of prior art, omnidistancely can rely on Machine automated weeding, manpower is not needed to interfere, in addition, weeding system is flexible, and the upgrowth situation according to weeds determines weeding position and weeding area, and, any chemical contamination can not be brought.
Fig. 1 is the block diagram of the weeds Automatic clearance system illustrated according to an embodiment of the present invention, described system comprises: caterpillar chassis 1, motor 2, motor driving apparatus 3, digital signal processor DSP 4, weeding apparatus 5 and weeds checkout equipment 6, and described digital signal processor 4 is connected respectively with described caterpillar chassis 1, described motor 2, described motor driving apparatus 3, described weeding apparatus 5 and described weeds checkout equipment 6.
Wherein, described caterpillar chassis 1 is driven by described motor 2, described motor driving apparatus 3 provides motor drive signal to control the rotating speed of motor 2 for described motor 2, described weeds checkout equipment 6 performs shooting to obtain farmland image to farmland, described system front, and weeds detection is carried out to described farmland image, described digital signal processor 4 controls described weeding apparatus 5 and described motor driving apparatus 3 based on the testing result of described weeds checkout equipment 6.
Then, continue to be further detailed the concrete structure of weeds Automatic clearance system of the present invention.
Described weeds Automatic clearance system also comprises: user input device, for the operation according to user, input weeds area threshold, weeds upper limit gray threshold and weeds lower limit gray threshold, described weeds upper limit gray threshold and described weeds lower limit gray threshold are used for the weeds in image and background separation.
Described weeds Automatic clearance system also comprises: portable hard drive, is connected with described user input device, to receive and to store described weeds area threshold, described weeds upper limit gray threshold and described weeds lower limit gray threshold.
Described weeds Automatic clearance system also comprises: four infrared distance measuring sensors, lays respectively at four positions all around of described caterpillar chassis, for detecting the obstacle distance of described system all around four direction respectively.
Described weeds Automatic clearance system also comprises: wireless transmitting-receiving equipments, sets up two-way wireless communication link with the agricultural management platform of far-end, for receiving the control instruction that described agricultural management platform sends.
Described weeding apparatus 5 is eight claw weeding mechanisms, comprises a scalable device and eight shovel cutter heads, and when weeding, described scalable device drives eight shovel cutter heads to catch weeds to clear up.
Described weeds checkout equipment 6 comprises camera and image processor, described camera is positioned at the front end of described system, for performing shooting to obtain farmland image to farmland, described system front, described image processor is connected respectively with described camera and described portable hard drive, carry out weeds detection to described farmland image, described image processor comprises self adaptation recursive filtering unit, contrast strengthen unit, gray processing processing unit, image segmentation unit and image identification unit.
Described self adaptation recursive filtering unit is connected with described camera, the process of self adaptation recursive filtering is performed to described farmland image, to obtain filtering image, described contrast strengthen unit is connected with described self adaptation recursive filtering unit, contrast enhancement processing is performed to described filtering image, image is strengthened to export, described gray processing processing unit is connected with described contrast strengthen unit, gray processing process is performed to described enhancing image, with output gray level image, described image segmentation unit is connected respectively with described gray processing processing unit and described portable hard drive, for the pixel identification of gray value in described gray level image between described weeds upper limit gray threshold and described weeds lower limit gray threshold is formed weeds subgraph.
Described image identification unit is connected respectively with described image segmentation unit and described portable hard drive, the area calculating described weeds subgraph is using as weeds area, using the position of form center of the weeds shape in described weeds subgraph as weeds center, and when described weeds area is more than or equal to described weeds area threshold, send and there is weeds signal and export described weeds center, when described weeds area is less than described weeds area threshold, send without weeds signal.
Described digital signal processor 4 is connected respectively with described camera, described weeding apparatus 5, described motor driving apparatus 3, described four infrared distance measuring sensors and described image identification unit, to send to described motor driving apparatus 3 and described caterpillar chassis 1 according to the obstacle distance of the four direction all around received and keep away barrier signal, described in keep away barrier signal and include the angle of turn sending to the motor speed of described motor driving apparatus 3 He send to described caterpillar chassis 1.
Described digital signal processor 4 also receive there is weeds signal time, send to described motor driving apparatus 3 and stop motor operation signal, control described weeding apparatus 5 based on described weeds center to move to the actual position place of described weeds, based on the weeding scope of weeding apparatus 5 described in described weeds area control, export described farmland image simultaneously.
Wherein, described wireless transmitting-receiving equipments is connected with described digital signal processor 4, there is weeds signal by described or describedly send to described agricultural management platform without weeds signal, and receive described there is weeds signal time, the farmland image wireless that described digital signal processor 4 forwards is sent to described agricultural management platform; Described digital signal processor 4 is connected with described weeding apparatus 5, described motor driving apparatus 3, described four infrared distance measuring sensors and described image identification unit respectively by serial ports, is connected with described camera by parallel port; Described digital signal processor 4 also comprises condensing encoder, with before the image of output described farmland, performs the compression of images based on MPEG-2 coding standard to described farmland image.
Wherein, in described weeds Automatic clearance system, described motor 2 is chosen as direct current generator, its rated power is 90W, the selectable width of described caterpillar chassis 1 is 40 centimetres, described self adaptation recursive filtering unit, described contrast strengthen unit, described gray processing processing unit, described image segmentation unit and described image identification unit can adopt different fpga chips to realize respectively, described serial ports is chosen as RS-232 serial communication interface, described parallel port is chosen as eight parallel-by-bit I/O mouths of described digital signal processor 4, described digital signal processor 4 can also when receiving without weeds signal, starter motor run signal is sent to described motor driving apparatus 3.
In addition, there is following harm to the growth of crops in the existence of weeds: (1) and crops fight for the nutritional resources such as water, fertilizer, light, and the root system of weeds is generally huge, and the ability expending liquid manure is stronger; (2) weeds are vectors of crop pest, insect pest, because weeds vitality is vigorous, are much life in 2 years or perennial plant, so germ and insect are usually first parasitic on weeds or pass the winter, go crop endangers after crop grows again; (3) occupy ground and underground part space, affect photosynthesis, interference plant growth, in early producing, the seed amount of weeds is considerably beyond the seeding quantity of crop, adds morning of emerging, speed soon, easily forms farmland running to weeds; (4) increase management recruitment and production cost, peasant occupies the nearly half of the amount of labour in field in weeding recruitment, the large-area popularization of direct sowing on dry paddy field especially now, and weeds live again especially everywhere, and weeds also affect ploughing capacity, lengthen working hours; (5) reduce the yield and quality of crops, due to weeds in soil nutrient, moisture, plant growth space and damage by disease and insect propagation etc. directly, damage to crops indirectly, final or affect the yield and quality of crops; (6) affect water conservancy projects, if overgrow with weeds in water channel, water in a canal stream can be made to slow down, Sediment Siltation, and perch for muroid condition is provided, make water channel dam impaired; (7) affect human and livestock health, some weeds is lolium temulentum seed such as, if be mixed into wheat, can be poisoning even dead after people has eaten, more such as sweet-scented oleander, also can be poisoning after having been eaten by beast.
Adopt weeds Automatic clearance system of the present invention, low or clear up range limited technical problem for existing weeds liquidating plan cleaning efficiency, weeds checkout equipment is adopted to determine weeds position and area in real time, the co-operating of infrared distance measuring equipment, motor, caterpillar chassis and motor driving apparatus is adopted to realize ground, field automatically current, the weeds cleaning work of predetermined area can be completed without the need to manual operation, effectively reduce weeds to the impact of crop growth.
Be understandable that, although the present invention with preferred embodiment disclose as above, but above-described embodiment and be not used to limit the present invention.For any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (7)
1. a weeds automatic cleaning method, the method can comprise:
1) a kind of weeds Automatic clearance system is provided, described system comprises weeding apparatus, motor, caterpillar chassis, motor driving apparatus, weeds checkout equipment and digital signal processor DSP, described caterpillar chassis is by described driven by motor, described motor driving apparatus provides motor drive signal to control the rotating speed of motor for described motor, described weeds checkout equipment performs shooting to obtain farmland image to farmland, described system front, and weeds detection is carried out to described farmland image, described digital signal processor and described weeding apparatus, described motor driving apparatus is connected respectively with described weeds checkout equipment, testing result based on described weeds checkout equipment controls described weeding apparatus and described motor driving apparatus,
2) described system is run.
2. the method for claim 1, is characterized in that, described system also comprises:
User input device, for the operation according to user, input weeds area threshold, weeds upper limit gray threshold and weeds lower limit gray threshold, described weeds upper limit gray threshold and described weeds lower limit gray threshold are used for the weeds in image and background separation;
Portable hard drive, is connected with described user input device, to receive and to store described weeds area threshold, described weeds upper limit gray threshold and described weeds lower limit gray threshold;
Four infrared distance measuring sensors, lay respectively at four positions all around of described caterpillar chassis, for detecting the obstacle distance of described system all around four direction respectively;
Wireless transmitting-receiving equipments, sets up two-way wireless communication link with the agricultural management platform of far-end, for receiving the control instruction that described agricultural management platform sends;
Described weeding apparatus is eight claw weeding mechanisms, comprises a scalable device and eight shovel cutter heads, and when weeding, described scalable device drives eight shovel cutter heads to catch weeds to clear up;
Described weeds checkout equipment comprises camera and image processor, described camera is positioned at the front end of described system, for performing shooting to obtain farmland image to farmland, described system front, described image processor is connected respectively with described camera and described portable hard drive, weeds detection is carried out to described farmland image, described image processor comprises self adaptation recursive filtering unit, contrast strengthen unit, gray processing processing unit, image segmentation unit and image identification unit, described self adaptation recursive filtering unit is connected with described camera, the process of self adaptation recursive filtering is performed to described farmland image, to obtain filtering image, described contrast strengthen unit is connected with described self adaptation recursive filtering unit, contrast enhancement processing is performed to described filtering image, image is strengthened to export, described gray processing processing unit is connected with described contrast strengthen unit, gray processing process is performed to described enhancing image, with output gray level image, described image segmentation unit is connected respectively with described gray processing processing unit and described portable hard drive, for the pixel identification of gray value in described gray level image between described weeds upper limit gray threshold and described weeds lower limit gray threshold is formed weeds subgraph, described image identification unit is connected respectively with described image segmentation unit and described portable hard drive, the area calculating described weeds subgraph is using as weeds area, using the position of form center of the weeds shape in described weeds subgraph as weeds center, and when described weeds area is more than or equal to described weeds area threshold, send and there is weeds signal and export described weeds center, when described weeds area is less than described weeds area threshold, send without weeds signal,
Described digital signal processor and described camera, described weeding apparatus, described motor driving apparatus, described four infrared distance measuring sensors are connected respectively with described image identification unit, obstacle distance according to the four direction all around received keeps away barrier signal to described motor driving apparatus and the transmission of described caterpillar chassis, described barrier signal of keeping away includes the angle of turn sending to the motor speed of described motor driving apparatus He send to described caterpillar chassis, described digital signal processor also receive there is weeds signal time, send to described motor driving apparatus and stop motor operation signal, control described weeding apparatus based on described weeds center to move to the actual position place of described weeds, based on the weeding scope of weeding apparatus described in described weeds area control, export described farmland image simultaneously,
Wherein, described wireless transmitting-receiving equipments is connected with described digital signal processor, there is weeds signal by described or describedly send to described agricultural management platform without weeds signal, and receive described there is weeds signal time, the farmland image wireless forwarded by described digital signal processor sends to described agricultural management platform;
Wherein, described digital signal processor is connected with described weeding apparatus, described motor driving apparatus, described four infrared distance measuring sensors and described image identification unit respectively by serial ports, is connected with described camera by parallel port;
Wherein, described digital signal processor also comprises condensing encoder, with before the image of output described farmland, performs the compression of images based on MPEG-2 coding standard to described farmland image.
3. method as claimed in claim 2, is characterized in that:
Described motor is direct current generator, and its rated power is 90W.
4. method as claimed in claim 2, is characterized in that:
The width of described caterpillar chassis is 40 centimetres.
5. method as claimed in claim 2, is characterized in that:
Described self adaptation recursive filtering unit, described contrast strengthen unit, described gray processing processing unit, described image segmentation unit and described image identification unit adopt different fpga chips to realize respectively.
6. method as claimed in claim 2, is characterized in that:
Described serial ports is RS-232 serial communication interface, and described parallel port is eight parallel-by-bit I/O mouths of described digital signal processor.
7. method as claimed in claim 2, is characterized in that:
Described digital signal processor, also when receiving without weeds signal, sends starter motor run signal to described motor driving apparatus.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107343494A (en) * | 2017-06-19 | 2017-11-14 | 中国烟草总公司广东省公司 | Agricultural intelligent weeding system and herbicidal methods |
| CN108142083A (en) * | 2017-12-21 | 2018-06-12 | 大连威迪欧信息技术有限公司 | A kind of automatic herbicidal methods based on Internet of Things |
| CN116724982A (en) * | 2023-08-15 | 2023-09-12 | 忻州市农业产业发展中心 | Automatic weeding and pesticide spraying equipment for animal husbandry |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107343494A (en) * | 2017-06-19 | 2017-11-14 | 中国烟草总公司广东省公司 | Agricultural intelligent weeding system and herbicidal methods |
| CN108142083A (en) * | 2017-12-21 | 2018-06-12 | 大连威迪欧信息技术有限公司 | A kind of automatic herbicidal methods based on Internet of Things |
| CN116724982A (en) * | 2023-08-15 | 2023-09-12 | 忻州市农业产业发展中心 | Automatic weeding and pesticide spraying equipment for animal husbandry |
| CN116724982B (en) * | 2023-08-15 | 2023-10-24 | 忻州市农业产业发展中心 | Automatic weeding and pesticide spraying equipment for animal husbandry |
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