CN114128444A - Laser sensing-based precision seeding parameter wireless remote monitoring method and device - Google Patents
Laser sensing-based precision seeding parameter wireless remote monitoring method and device Download PDFInfo
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- CN114128444A CN114128444A CN202111416318.4A CN202111416318A CN114128444A CN 114128444 A CN114128444 A CN 114128444A CN 202111416318 A CN202111416318 A CN 202111416318A CN 114128444 A CN114128444 A CN 114128444A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
- G08B5/38—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources using flashing light
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
Abstract
The invention discloses a laser sensing-based wireless remote monitoring device for precision seeding parameters, which comprises a main controller, a laser sensing-based seed information capturing unit, a mobile terminal, a cloud server, a GPS velometer and a warning device, wherein: the seed information capturing unit based on laser sensing, the GPS velometer and the warning device are electrically connected with the main controller; the main controller is connected with the cloud server through a wireless network, and the cloud server is connected with the mobile terminal through the wireless network.
Description
Technical Field
The invention relates to the field of agricultural machinery, in particular to a precision seeding parameter wireless remote monitoring method based on laser sensing.
Background
China is a big agricultural country, and along with the continuous development of agricultural mechanization, agricultural intellectualization is also promoted. As an important expression of agricultural intelligent development, the precision agriculture adds new wisdom to the agricultural development of China and creates greater value. The precision seeding of crops is an important component of precision agriculture, and particularly in recent years, the crop planting scale is increased but not reduced, the precision seeding of crops becomes a mainstream trend, the yield and income can be increased by realizing the precision seeding, and meanwhile, a large amount of cost is saved. Precision seeding relies on a precision seed metering device that is mounted on a seeder to seed in the field. The sowing parameters of the sowing machine can be accurately monitored in real time, so that the sowing condition in the field can be known more, the blockage fault can be found in time, and the loss is reduced; meanwhile, performance parameters of the seeder such as seeding qualification rate, miss-seeding rate, re-seeding rate and the like are obtained, and the working performance of the seeder can be evaluated. Therefore, it is necessary to monitor the precision seeding parameters in real time, and the planter can be helped to know the seeding status.
At present, the development of precision seeding parameter monitoring technology in China is relatively lagged behind, precision seeding parameter monitoring basically takes seeding amount monitoring as a main part, the qualification rate, the miss rate and the rebroadcasting rate can be monitored rarely, a terminal display and a microprocessor cannot be separated, the precision seeding parameter monitoring technology is in a one-to-one mode, data obtained by monitoring can be displayed on only one terminal, the precision seeding parameter monitoring technology and the terminal display are connected through electric wires, the precision seeding parameter monitoring technology is very inconvenient, and the use cost is greatly increased.
The invention aims to provide a method and a device for wirelessly and remotely monitoring precision seeding parameters based on laser sensing, which can realize precise real-time remote monitoring of precision seeding parameters such as seeding quantity, qualification rate, miss rate, re-seeding rate, planting distance and the like.
Disclosure of Invention
In order to realize the purpose of the invention, the following technical scheme is adopted for realizing the purpose:
the utility model provides a wireless remote monitoring device of precision seeding parameter based on laser sensing, includes main control unit, seed information acquisition unit, mobile terminal, cloud ware, GPS velometer and warning device based on laser sensing, wherein: the seed information capturing unit based on laser sensing, the GPS velometer and the warning device are electrically connected with the main controller; the main controller is connected with the cloud server through a wireless network, and the cloud server is connected with the mobile terminal through the wireless network.
The precision seeding parameter wireless remote monitoring device based on laser sensing, wherein: the monitoring device further comprises a self-cleaning device.
The precision seeding parameter wireless remote monitoring device based on laser sensing, wherein: the main controller comprises an external control box, an STM32 microprocessor, a voltage conversion module, a communication module, a power switch, a reset switch, a laser sensing-based connecting plug of a seed information capturing unit, a GPS velometer connecting plug and a warning lamp connecting plug.
The precision seeding parameter wireless remote monitoring device based on laser sensing, wherein: the main controller calculates the miss rate as follows: if X is more than 1.5Xref, counting as miss-seeding; if X is less than or equal to 1.5Xref, recording as replay, and the rest are qualified, wherein
X is the real-time planting row spacing, Xref is the target row spacing, T is the interval time between two adjacent seeds, and V is the advancing speed of the seeder.
The device for wirelessly and remotely monitoring the precision seeding parameters based on the laser sensing comprises a seed guiding pipe, a laser receiving pipe, a laser emitting pipe and a laser sensor transparent mounting box, wherein the seed information capturing unit based on the laser sensing comprises the seed guiding pipe, the laser receiving pipe, the laser emitting pipe and the laser sensor transparent mounting box; the transparent mounting box of laser sensor is including left opening, right side opening and upper and lower open-ended four open-ended boxes, and the inside cavity of mounting box, left side opening, right side opening are the blind hole, and upper and lower open-ended link up each other inside the mounting box.
The precision seeding parameter wireless remote monitoring device based on laser sensing, wherein: the laser transmitting tube is inserted into the right side square hole of the laser sensor transparent mounting box, the laser receiving tube is inserted into the left side round hole, and the laser sensor transparent mounting box is bonded at the bottom of the seed guide tube.
The precision seeding parameter wireless remote monitoring device based on laser sensing, wherein: the bottom of the seed outlet of the seed guide pipe is an inclined plane, and the top of the opening on the transparent mounting box of the laser sensor is also an inclined plane and is closely attached, adhered and fixed with the bottom of the seed guide pipe.
The precision seeding parameter wireless remote monitoring device based on laser sensing, wherein: the seed guiding pipe comprises an upper half section and a lower half section, the upper half section of the seed guiding pipe is inserted into the lower half section of the seed guiding pipe, and the lower half section of the seed guiding pipe can be subjected to stepless expansion; a row of ratchet teeth are arranged on one side of the outer wall of the lower part of the upper half section of the seed guiding pipe from top to bottom, and a fixed hook is arranged on the lower half section 2 of the seed guiding pipe and is matched with the ratchet teeth to lock the position between the upper half section and the lower half section.
The precision seeding parameter wireless remote monitoring device based on laser sensing, wherein: the self-cleaning device comprises a spray head, a water hose, a small water pump and a water bottle, wherein the spray head is arranged on a transparent mounting box of the laser sensor through punching, and the spray head and the inner wall form an included angle of 30 degrees and are flush with each other; the hose is fixed on the seed guiding pipe by a binding belt, and the small water pump and the water bottle are fixed on the seeder frame by the binding belt.
The precision seeding parameter wireless remote monitoring device based on laser sensing, wherein: the fixed hook body is strip-shaped, the head part of the fixed hook body is provided with a hook head which is meshed with the ratchet teeth, the upper part of the fixed hook body is connected with the lower half section of the seed guide pipe through a supporting rotating shaft, and the supporting rotating shaft is arranged at the top of the lower half section of the seed guide pipe; the fixed hook bottom is equipped with the shackle, is connected with the one end of spring, and the shackle that half section outer wall set up under the other end and the seed guide of spring is connected.
Drawings
FIG. 1 is a schematic structural diagram of a main controller of the precision seeding parameter wireless remote monitoring method and device based on laser sensing;
FIG. 2 is a schematic diagram of a communication flow of a method and a device for wirelessly and remotely monitoring precision seeding parameters based on laser sensing according to the present invention;
FIG. 3 is a schematic structural diagram of a seed information capturing unit of the method and device for wirelessly and remotely monitoring precision seeding parameters based on laser sensing according to the present invention;
FIG. 4 is a schematic view of a structure of a telescopic seed guide tube of the method and the device for wirelessly and remotely monitoring precision seeding parameters based on laser sensing;
FIG. 5 is a schematic structural view of a self-cleaning device and a method for wirelessly and remotely monitoring precision seeding parameters based on laser sensing according to the present invention;
FIG. 6 is a functional schematic diagram of a signal processing algorithm of the precision seeding parameter wireless remote monitoring method and device based on laser sensing according to the present invention;
FIG. 7 is a functional schematic diagram of a seed information capture unit of the precision seeding parameter wireless remote monitoring method and device based on laser sensing according to the present invention;
FIG. 8 is a functional schematic diagram of an APP main interface of the precision seeding parameter wireless remote monitoring method and device based on laser sensing;
fig. 9 is a circuit schematic design diagram of the laser sensor of the precision seeding parameter wireless remote monitoring method and device based on laser sensing of the invention.
Reference numerals: 1, a main controller; 101 an external control box; 102STM32 microprocessor; 103 a voltage conversion module; 104Air202 communication module; 105 a power switch; 106 a reset switch; 2, a seed information capturing unit based on laser sensing; 201 guiding the upper half section of the pipe; 202, a lower half section of a seed guiding pipe; 203 ratchet; 204 fixing the hook; 205 a spring; 206 laser receiving tube; 207 a laser sensor transparent mounting box; 208 laser emitting tube; 209 laser sensor connection plug; 3 self-cleaning device; 301 a spray head; 302 a soft water pipe; 303 small water pump; 304 water bottles; 4, moving the terminal; 5MQTT cloud servers; 6GPS velometer; 7 warning light.
Detailed Description
The following detailed description of the present invention will be made with reference to the accompanying drawings 1-9.
As shown in fig. 1-4, the laser sensing-based wireless remote monitoring device for precision seeding parameters comprises a main controller 1, a laser sensing-based seed information capturing unit 2, a self-cleaning device 3, a mobile terminal 4, an MQTT cloud server 5, a GPS velometer 6 and a warning device 7.
The main controller 1 comprises an external control box 101, an STM32 microprocessor 102, a voltage conversion module 103, an Air202 communication module 104, a power switch 105, a reset switch 106, a laser sensing-based seed information capturing unit 2 connecting plug 107, a GPS velometer 6 connecting plug 108 and a warning lamp 7 connecting plug 109. The STM32 microprocessor 102, the voltage conversion module 103, the Air202 communication module 104 are installed in the external control box 101, and the power switch 105, the reset switch 106, the connection plug 107 of the laser sensing-based seed information capturing unit 2, the GPS velometer 6 connection plug 108, and the warning light 7 connection plug 109 are installed on the external control box 101.
The main controller 1 is a core part of the entire monitoring apparatus, and can acquire information, process data, and transmit data. Parameters such as seeding quantity, qualification rate, miss-seeding rate, re-seeding rate, real-time plant spacing and the like are calculated and counted by acquiring electric signals acquired by the seed information acquisition unit 2 based on laser sensing and seeder advancing speed signals acquired by the GPS velometer 5. The specific calculation mode is that if X is more than 1.5Xref, the miss-seeding is counted; if X is less than or equal to 1.5Xref, the result is designated as replay, and the rest are qualified. According to the relationship among distance, speed and time, calculating to obtain the speed-measuring instrument
X is the real-time planting row spacing, Xref is the target row spacing, T is the interval time (milliseconds) between the two adjacent seeds, and V is the advancing speed (kilometer per hour) of the seeder. The percent of pass is the proportion of the number of the qualified seeds in the total plant spacing, and the miss-seeding rate and the re-seeding rate are calculated in the same way.
In order to further improve the anti-interference capability of the signal capture algorithm, the signal capture algorithm of the STM32 microprocessor 102 is optimally designed. An algorithm model for simulating a watchdog is used (ADC to Digital converter). The function is introduced as follows: assuming that the trigger signal is a falling edge trigger and that noise and interference are present, and it is desired to capture the signal, first, the watchdog trigger threshold is initialized to a low level trigger. Assuming that the trigger signal level V1 is 0.1V and the interference signal level V2 is 0.3V at the lowest, the watchdog threshold is set as: 0.2 v-3.3 v (the supply voltage of the STM32 singlechip is 3.3v), at this moment, the watchdog interrupt can not be triggered by the signal within 0.2-3.3 v, but the watchdog interrupt can be successfully triggered by the 0.1v signal. This achieves the effect of filtering the interference signal. After the watchdog interrupt is triggered when the trigger signal level V1 is 0.1V, the threshold of the watchdog is changed to a high level state, so that the situation that the trigger signal is too long and frequently enters the watchdog interrupt can be prevented. When the trigger signal returns to the high state, a watchdog interrupt is entered because the watchdog interrupt is already set to be the high trigger. In the watchdog interrupt, the next trigger signal can be waited only by changing the watchdog trigger threshold into low level trigger.
The power switch 105 may control the start and stop of the main controller 1, and the reset switch 106 may enable the main controller 1 to clear all parameters and return to the initialization state. The power switch 105 and the reset switch 106 are mounted on the outer control box 101 through punching.
The 12V power supply of the tractor is converted into a 5V power supply through the voltage conversion module 103, and the STM32 microprocessor 102 is powered.
The signal acquisition pin and the power supply pin of the STM32 microprocessor 102 are connected to the laser sensing-based seed information capturing unit 2 connecting plug 107, and can be matched and connected with the laser sensor connecting plug 205 to realize electric signal transmission. The STM32 microprocessor 102 has multiple signal acquisition pins to facilitate the development of the laser sensing based seed information capture unit 2.
The Air202 communication module 104 performs information transmission through a serial port and the STM32 microprocessor 102, so that high transmission efficiency can be ensured, and the Air202 communication module 104 needs to use a SIM card and is connected to a network by GPRS. The communication of the Air202 communication module 104 includes both communication with the microprocessor and communication with the cloud server. The communication with the microprocessor adopts a serial port communication mode, and the communication with the cloud server adopts GPRS data transmission. Before communication, the Air202 needs to perform corresponding configuration, including downloading Lod and Lua script files, wherein the Lua script files are developed based on SciTE and mainly include MQTT configuration, serial port configuration and the like. MQTT (Message Queuing Telemetry Transport) is a messaging protocol based on the publish/subscribe programming model of binary messages. The MQTT server, also known as a "message Broker" (Broker), may be an application or a device. It is located between the message publisher and the subscriber, and it can: accepting a network connection from a client; receiving application information issued by a client; processing subscription and unsubscription requests from the client; the application message is forwarded to the subscribed client. Based on the communication principle, the MQTT cloud server 5 is developed and established, the MQTT cloud server 5 serves as a data transfer station, can receive data sent by the Air202 communication module 104 and can also release the data to the mobile terminal 4, the mobile terminal display is no longer in a traditional one-to-one mode, any mobile terminal can be monitored on line only by installing App software and is not limited by distance, monitoring can be carried out in a tractor cab, and seeding information can be obtained at any time and any place in a grower home.
The mobile terminal can display parameters such as the seeding quantity, the qualification rate, the miss-seeding rate, the re-seeding rate, the real-time planting distance and the like in real time, can input parameters such as the number of holes of the seed metering device type and the standard planting distance and the like, can generate Excel tables from all data in real time, and is convenient for later-stage data processing and storage. The mobile terminal is programmed based on a JAVA language by adopting an Android Studio development environment. The design of the mobile terminal mainly comprises four parts: firstly, adding a monitoring object part, and adding monitoring equipment in a two-dimensional code scanning mode, wherein each equipment has a unique two-dimensional code; secondly, the design of a display interface has the functions of parameter input and display, dynamic curve drawing, satellite positioning, map display and the like; thirdly, a data receiving and updating display part, wherein the mobile terminal receives data sent by the MQTT cloud server 5 in real time through a network to realize data updating of a display interface; and fourthly, exporting data to generate an Excel file part, wherein a tool class library jxl.jar of the Excel table is operated by JAVA language, and the Excel table can be created and edited and comprises table attribute design, format and the like. Jar can add all the seeding parameters obtained by the mobile terminal into an Excel table in real time through jxl, so that the later data processing and storage are facilitated.
The warning light 7 is connected with the control pin connecting plug 109 of the STM32 microprocessor 102, and can flash for warning when a fault occurs to remind a driver of stopping for inspection, so that loss is reduced.
As shown in fig. 3 and 4, the seed information capturing unit 2 based on laser sensing includes a seed guiding tube (the seed guiding tube includes an upper half 201 and a lower half 202), a laser receiving tube 206, a laser emitting tube 208, a laser sensor transparent mounting box 207, and a laser sensor connecting plug 209. The seed information capturing unit 2 based on laser sensing adopts a laser sensing method, when seeds pass through a sensor, partial laser emitted by the laser emitting tube 208 is blocked, and the laser receiving tube 203 receives the partial laser to generate the change of an electric signal, and the change of the electric signal can be captured by the STM32 microprocessor 102 and can be processed to obtain sowing parameters.
The laser has the advantages of good monochromaticity, strong penetrating power and the like, and can still be used under the condition of larger dust, so that the laser can penetrate through the transparent mounting box 207 of the laser sensor, and the influence of dust in field operation is avoided.
In order to increase the anti-interference performance of the laser sensor, the modulation tube is used for laser modulation, and the transmitting frequency of the laser transmitting tube is modulated to be within the frequency range received by the receiving tube. The drive circuit of the laser sensor generally adopts a triode drive mode, and the invention adopts a phase inverter drive mode, so that compared with the triode drive mode, the drive circuit has the advantages that one modulation tube can be used for driving a plurality of laser emission tubes, the drive force is enhanced, the light spot brightness is increased, and the anti-interference performance is improved. The circuit design is as shown in fig. 9, the laser sensor circuit comprises a modulation tube SOC2110, an inverter HD74LS04, a laser emitting tube and a laser receiving tube, wherein the power supply of the modulation tube is connected with a direct current voltage source, the output end of the modulation tube is connected with the input end of the inverter and the first end of a resistor R1(75 Ω), the second end of the resistor R1 is grounded, the power supply of the inverter is connected with the direct current voltage source, the ground end of the inverter is grounded, the output end of the inverter is connected with the output end of the laser emitting tube, and the power supply of the laser emitting tube is connected with the direct current voltage source; the power supply end of the laser receiving tube is connected with a direct-current voltage source, the grounding end is grounded, the signal output end of the laser receiving tube is connected with the STM32 microprocessor, meanwhile, the signal output end is also connected with the first end of a resistor R2(1.5K omega), the first end of a resistor R3(4.7K omega) and the first end of a capacitor C1(0.1uF) are connected with the grounding end and the ground, the second end of the resistor R2 is connected with the cathode of the light emitting diode, and the anode of the light emitting diode is connected with the direct-current voltage source; the second end of the resistor R3 and the second end of the capacitor C1 are connected with a direct-current voltage source. The frequency of the laser emission tube can be modulated by the modulation tube in the circuit, the brightness can be increased by driving the phase inverter, the anti-interference performance is improved, and the capacitor C1 is used for achieving the anti-interference and potential isolation effects.
The transparent mounting box 207 of laser sensor is including left hole, right hole and upper and lower open-ended four-opening box, and the inside cavity of mounting box 207, left hole, right hole are the blind hole, smash laser sensor (laser receiver tube 206 and laser emission pipe 208) when can avoiding the seed to drop, and upper and lower open-ended link up each other inside the mounting box.
The number of the laser emitting tubes 208 can be selected according to the size of the seed outlet of the seed guiding tube, and the covering surface of the seeds needs to be ensured. The laser transmitting tube 208 is inserted into a right side hole of the laser sensor transparent mounting box 207, the laser receiving tube 206 is inserted into a left side round hole, and the laser receiving tube 206 is provided with a lens at an external receiving end thereof to realize a light-gathering and opposite-emitting function in order to ensure that laser energy emitted by the laser transmitting tube 208 irradiates on the middle point of the laser receiving tube 206. A laser sensor connection plug 209 formed by connecting the laser emitting tube 208 and the laser receiving tube 206 may be inserted into the connection plug 107 of the seed information capturing unit 2 of the main controller 1 based on laser sensing, so as to realize the transmission of electrical signals. The transparent mounting box 207 of the laser sensor can be bonded at the bottom of the seed guiding pipe, is closer to the seed ditch, and is closer to the real effect of seeding.
The existing seed outlet at the bottom of the seed guide tube is designed to be an inclined plane, in order to ensure that the seed outlet is matched with the seed guide tube for use, the top of an upper opening of the transparent mounting box 207 of the laser sensor is designed to be an inclined plane, the top of the upper opening of the transparent mounting box 207 of the laser sensor can be tightly attached to the seed guide tube, and the transparent mounting box 207 of the laser sensor is bonded at the bottom of the seed guide tube by using a bonding fixing mode. Through high-speed photographic observation, the motion trail analysis of the seeds in the seed guide pipe finds that the seeds are always collided and bounced on the upper part of the seed guide pipe, and therefore the monitoring error caused by collision and bounced can be reduced by arranging the sensor at the bottom.
Meanwhile, in order to adapt to different sowing heights of the sowing machine, the seed guide pipe is designed into a two-section telescopic structure. The upper half section 201 of the seed guide pipe is inserted into the lower half section 202 of the seed guide pipe, the lower half section 202 of the seed guide pipe can be subjected to stepless expansion, the expansion length can reach 10cm, and the requirement of seeding height adjustment is completely met. A row of ratchet teeth 203 are arranged on one side of the outer wall of the lower part of the upper half section 201 of the seed guiding pipe from top to bottom, a fixed hook 204 is arranged on the lower half section 202 of the seed guiding pipe, and the fixed hook 204 can be completely matched with the ratchet teeth 203 to achieve the fixing effect. Meanwhile, the fixing hook 204 can realize the tensioning function under the action of the spring 205. Through the length of adjustment seed guide pipe, can avoid the improper damage that causes in sensor position.
As shown in fig. 4, the body of the fixed hook 204 is strip-shaped, the head of the fixed hook is provided with a hook head for engaging with the ratchet 203, the upper part of the body of the fixed hook 204 is connected with the lower half 202 of the seed guiding tube through a supporting rotating shaft 210, the supporting rotating shaft 210 is arranged at the top of the lower half 202 of the seed guiding tube, the supporting rotating shaft 210 is a rotating structure similar to a hinge, the fixed hook 204 can rotate around the supporting rotating shaft 210, the bottom of the fixed hook 204 is provided with a hook ring connected with one end of the spring 205, and the other end of the spring 205 is connected with the hook ring arranged on the outer wall of the lower half 202 of the seed guiding tube. The spring 205 has a certain tension to prop against the hook head of the fixed hook 204 to engage with the ratchet 203, when the telescopic length of the catheter is changed, the fixed hook 204 needs to be pressed to make the spring 205 present a compressed state, and the fixed hook 204 supports the rotating shaft 210 to rotate, so that the hook head is separated from the ratchet 203.
The self-cleaning device 3 comprises a spray head 301, a water hose 302, a small water pump 303 and a water bottle 304. The self-cleaning device 3 can clean the inner wall of the laser sensor transparent mounting case 207. In the long-time field operation process, the inner wall of the transparent mounting box 207 of the laser sensor is inevitably covered with a layer of dust, which affects the reception of laser signals and even causes the working failure of the seed information capturing unit. In order to realize the regular cleaning function, a self-cleaning device 3 is additionally arranged outside the telescopic guide pipe. The spray head 301 is arranged on the transparent mounting box 204 of the laser sensor by punching, and the spray head and the inner wall form an included angle of 30 degrees and are flush with each other. The flexible water pipe 302 is fixed to the seed guide 201 by a band. The small water pumps 303 and 304 can be fixed on the seeder frame by using a binding belt, and the water sucking and draining functions of the small water pump 303 are realized by adopting a battery power supply mode. An independent controller is arranged in the self-cleaning device 3, and the self-cleaning device can be started at certain intervals during sowing operation, and is generally set to be 1 hour interval.
The laser sensing-based wireless remote monitoring method and device for the precision seeding parameters can realize real-time online remote monitoring of the precision seeding parameters, can simultaneously display parameters such as seeding quantity, qualification rate, miss-seeding rate, re-seeding rate, real-time plant spacing and the like by a plurality of terminals, changes the traditional one-to-one mode, and avoids troubles caused by arranging electric wires by adopting wireless communication.
By the method and the device, the precise real-time remote monitoring function of the precision seeding parameters (seeding quantity, qualification rate, miss rate, rebroadcast rate and the like) can be realized. Meanwhile, the laser sensor has a good resistance effect on complex environments with large dust in field operation, and has the advantages of high monitoring precision, good dust resistance and the like. Meanwhile, the self-cleaning device is designed to clean the inner wall of the sensor at regular time, so that the monitoring precision is ensured not to be influenced by dust. And moreover, the traditional line connection communication is replaced by a wireless remote communication mode, the problems of complex wiring, short communication distance and the like are solved, the use cost is reduced, the traditional one-to-one monitoring mode is changed, and the function of simultaneous online monitoring of multiple-to-multiple is realized.
Claims (3)
1. The utility model provides a wireless remote monitoring device of precision seeding parameter based on laser sensing, includes main control unit, based on seed information capture unit, mobile terminal, cloud server, GPS velometer and warning device of laser sensing, its characterized in that: the seed information capturing unit based on laser sensing, the GPS velometer and the warning device are electrically connected with the main controller; the main controller is connected with the cloud server through a wireless network, and the cloud server is connected with the mobile terminal through the wireless network.
2. The laser sensing based wireless remote monitoring device for precision seeding parameters according to claim 1, characterized in that: the main controller comprises an external control box, an STM32 microprocessor, a voltage conversion module, a communication module, a power switch, a reset switch, a laser sensing-based connecting plug of a seed information capturing unit, a GPS velometer connecting plug and a warning lamp connecting plug.
3. The laser-sensing-based wireless remote monitoring device for precision seeding parameters according to claim 1, wherein the laser-sensing-based seed information capturing unit comprises a seed guiding pipe, a laser receiving pipe and a laser emitting pipe.
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