阅读说明：本技术 一种木薯种植机漏播监测标记系统 (Cassava planter leaks and broadcasts monitoring mark system ) 是由 覃双眉 林晴 邓干然 何冯光 崔振德 郑爽 李国杰 李玲 于 2019-10-11 设计创作，主要内容包括：本发明公开了一种木薯种植机漏播监测标记系统,包括车载端、检测端、电源模块；所述车载端、检测端、电源模块均相互连通,所述车载端包括按键、播量显示、上位机、无线传输模块；所述检测端包括无线传输模块、下位机、漏播标记装置、种茎监测装置。本发明专利可以检测到种茎下落时自动更新播量,并发送到上位机通过播量显示模块显示,能有效提高木薯种植机的智能化水平,避免漏播的现象,且效率较高。(The invention discloses a cassava planter miss-seeding monitoring marking system, which comprises a vehicle-mounted end, a detection end and a power module, wherein the vehicle-mounted end is connected with the detection end; the vehicle-mounted end, the detection end and the power supply module are communicated with each other, and the vehicle-mounted end comprises a key, a broadcast volume display, an upper computer and a wireless transmission module; the detection end comprises a wireless transmission module, a lower computer, a miss-seeding marking device and a seed stem monitoring device. The cassava planter can detect that the sowing quantity is automatically updated when the seed stems fall, and sends the seed stems to the upper computer to be displayed through the sowing quantity display module, so that the intelligent level of the cassava planter can be effectively improved, the phenomenon of missed sowing is avoided, and the efficiency is high.)

1. A cassava planter miss-seeding monitoring marking system comprises a vehicle-mounted end, a detection end and a power module; the method is characterized in that: the vehicle-mounted end, the detection end and the power supply module are communicated with each other, and the vehicle-mounted end comprises a key, a broadcast volume display, an upper computer and a wireless transmission module; the detection end comprises a wireless transmission module, a lower computer, a miss-seeding marking device and a seed stem monitoring device.

2. The system of claim 1, wherein the buttons comprise 4 independent buttons K1, K2, K3, K4; and one end of each key is grounded, and the other end of each key is connected with the common pin of the upper computer.

3. The system for monitoring and marking missed seeding of the cassava planter according to claim 1, wherein the seeding amount display module is an LCD screen; the input end of the LCD screen is connected to the common pin of the upper computer.

4. The system for monitoring and marking missed seeding of the cassava planter according to claim 1, wherein the upper computer is configured to complete initialization and coordination of modules at the vehicle-mounted end.

5. The system for monitoring and marking missed seeding of the cassava planter according to claim 1, wherein the wireless transmission module comprises a pair of NRFs 24L 01; the input end of a wireless transmission module at the vehicle-mounted end is connected to a common pin of an upper computer; the input end of the wireless transmission module of the detection end is connected to a common pin of a lower computer; the wireless transmission module completes data transmission between the upper computer and the lower computer, and realizes setting of the minimum miss distance and updating of the broadcast quantity of the LCD liquid crystal screen of the broadcast quantity display module.

6. The system according to claim 1, wherein the lower computer is configured to perform initialization and coordination of modules at the detection end.

7. The cassava planter miss monitoring marking system according to claim 1, wherein the miss marking device comprises an electromagnetic relay, a broadcast portion; the sowing part of the miss-sowing marking device comprises a direct current motor, a lime box and a fixed bracket; the lime box comprises a loading box, a roller and a transmission chain wheel; the loading box is positioned above the roller and is used for loading the markers; the roller is fan-blade-shaped, so that uniform spreading of the markers is realized; the transmission chain wheel transmits power provided by the direct current motor and provides a proper transmission ratio; the input end of the electromagnetic relay is connected with the output end of the lower computer, the output public end of the electromagnetic relay is connected with the direct current motor, and the output normal open end of the electromagnetic relay is grounded; one end of the direct current motor is connected with the power supply module, and the other end of the direct current motor is connected with the output public end of the electromagnetic relay; the power output shaft of the direct current motor is connected with the central shaft of the lime box transmission chain wheel; the fixed support is arranged below the lime box and the direct current motor and used for fixing the sowing part of the miss-sowing marking device to the cassava planter.

8. The system for monitoring and marking missed seeding of the cassava planter according to claim 1, wherein the seed stem monitoring device comprises a sensor detection circuit, a signal processing circuit; the output end of the sensor detection circuit is connected with the input end of the signal processing circuit; the sensor detection circuit is used for sensing that the cassava seed stems falling from the seed discharge port of the cassava planter shield infrared signals to obtain voltage signals; the signal processing circuit is used for processing the voltage signal to obtain a seed sowing pulse sequence corresponding to the cassava seed stem seed sowing sequence.

9. The system for monitoring and marking missed seeding of the cassava planter according to claim 1, wherein the lower computer is connected with the output end of the signal processing circuit; and the lower computer is used for receiving the seeding pulse sequence, obtaining a seeding time interval, and sending a starting signal to the miss-seeding marking device when the seeding interval exceeds the given minimum miss-seeding interval time.

10. The system for monitoring and marking missed seeding of the cassava planter as claimed in claim 1, wherein the lower computer can update the seeding amount in time when detecting that the seed stem falls, and sends the seeding amount to the vehicle-mounted end through the wireless transmission module, and the seeding amount is displayed through the seeding amount display module.

11. The system of claim 8, wherein the signal processing circuit comprises a voltage comparison circuit and a voltage reduction circuit: the voltage comparison circuit is used for distinguishing seed stem passing signals from other interference signals by setting a proper comparison voltage threshold value and converting signals transmitted by the sensor into regular rectangular wave signals; and the voltage reduction circuit is used for adjusting the current of the rectangular wave signal so as to adapt to the input current range of the lower computer pin.

12. The system for monitoring and marking missed seeding of the cassava planter according to claim 1, wherein the power module comprises a 12V DC power supply, a voltage stabilizing circuit; the voltage stabilizing circuit is used for converting 12V voltage into 3.3V and 5V voltage.

Technical Field

The invention relates to the technical field of intelligent agriculture, in particular to a cassava planter miss-seeding monitoring marking system.

Background

Cassava, sweet potato and potato are called three potatoes in the world and originate from the south border area of the amazon river basin. The potato seedlings have the advantages of strong stress resistance, drought and impoverishment resistance, less plant diseases and insect pests, coarse growth, no land competition with grains and the like, are widely planted in tropical and subtropical regions, have the global cultivation area of 1500 ten thousand hectares, produce more than 2 hundred million tons of fresh potatoes annually, and are one of seven large crops with annual yield of more than one hundred million tons in the world. Because of unique growth characteristics and excellent processing characteristics, cassava can be used as grain crops, can also be used for producing starch, alcohol, fuel ethanol and the like, has shown increasingly important economic status, gradually moves from main grain crops to industrial raw materials, and presents diversified food markets.

In recent years, the demand of cassava and cassava products in the world is increasing, so that the harvest area of the cassava is increasing, and the yield is continuously increasing. Compared with the main producing countries of cassava in the world, the Chinese cassava is mainly distributed in the provinces of Guangxi, Guangdong, Yunnan, Hainan and the like, wherein the planting area of the Guangxi and the Guangdong accounts for more than 90 percent of the total area. The cassava production scale in China is small, the harvest area and the yield account for low proportion in the world and are in a descending trend, the cassava produced by oneself in China can only meet the product demand by about 40%, and the contradiction between supply and demand is prominent. In 9 months in 2017, multiple departments such as the national development reform Commission, the national energy agency and the like jointly issue an implementation scheme about expanding the production of biofuel ethanol and popularizing and using the ethanol gasoline for vehicles, the ethanol gasoline for vehicles is definitely popularized and used nationwide, and full coverage is basically realized by 2020. Cassava is used as an excellent fuel ethanol processing raw material, and the demand of China is further expanded.

China has a plurality of real-time seed cutting type cassava planting machines, which greatly saves manpower, but has problems in the aspects of seeding uniformity, miss-seeding and other planting quality. The planting is used as an important link of agricultural production, and the yield increase and the stable yield of crops are influenced. The field operation environment is severe, the seeding mechanical part is inconvenient to directly observe, and the problem of 'broken strips' and missed seeding cannot be fed back in time, and particularly, when the seeding machine is operated in a large area, the operation speed of the planter is high, the seeding width is wide, and the seeding missing phenomenon is more obvious. After the seedlings emerge, manual reseeding or transplanting is carried out, so that not only is the manpower consumed, but also the growth difference between the reseeding plants and the normal seeding plants seriously influences the growth of crops.

Big, the operational environment is abominable, and the seed metering part is inconvenient direct observation in cassava planting machinery field operation in-process, in case land wheel skids or manual operation mistake, also can cause the problem of missed seeding. Although electronic monitoring technology is being widely applied to precision crop seeding machines, the range of types of crop seeding machines to be applied is limited. In order to solve the problems, a system for monitoring and marking missed seeding of a cassava planter is provided.

Disclosure of Invention

In order to solve the phenomenon, the invention adopts the following modified technical scheme that the cassava planter miss-seeding monitoring marking system comprises a vehicle-mounted end, a detection end and a power supply module; the vehicle-mounted end, the detection end and the power supply module are communicated with each other, and the vehicle-mounted end comprises a key, a broadcast volume display, an upper computer and a wireless transmission module; the detection end comprises a wireless transmission module, a lower computer, a miss-seeding marking device and a seed stem monitoring device.

As a further preferable mode of the present invention, the keys include 4 independent keys K1, K2, K3, K4; and one end of each key is grounded, and the other end of each key is connected with the common pin of the upper computer.

As a further preferable mode of the present invention, the display module is an LCD; the input end of the LCD screen is connected to the common pin of the upper computer.

As a further preferable mode of the present invention, the upper computer is configured to complete initialization and coordination of each module of the in-vehicle terminal.

As a further preferable mode of the present invention, the pair of wireless transmission modules NRF24L 01; the input end of a wireless transmission module at the vehicle-mounted end is connected to a common pin of an upper computer; the input end of the wireless transmission module of the detection end is connected to a common pin of a lower computer; the wireless transmission module completes data transmission between the upper computer and the lower computer, and realizes setting of the minimum miss distance and updating of the broadcast quantity of the LCD liquid crystal screen of the broadcast quantity display module.

As a further preferred embodiment of the present invention, the lower computer is configured to complete initialization and coordination of each module of the detection end.

As a further preferable mode of the present invention, the miss-seeding marking device includes an electromagnetic relay, a broadcast seeding portion; the sowing part of the miss-sowing marking device comprises a direct current motor, a lime box and a fixed bracket; the lime box comprises a loading box, a roller and a transmission chain wheel; the loading box is positioned above the roller and is used for loading the markers; the roller is fan-blade-shaped, so that uniform spreading of the markers is realized; the transmission chain wheel transmits power provided by the direct current motor and provides a proper transmission ratio; the input end of the electromagnetic relay is connected with the output end of the lower computer, the output public end of the electromagnetic relay is connected with the direct current motor, and the output normal open end of the electromagnetic relay is grounded; one end of the direct current motor is connected with the power supply module, and the other end of the direct current motor is connected with the output public end of the electromagnetic relay; the power output shaft of the direct current motor is connected with the central shaft of the lime box transmission chain wheel; the fixed support is arranged below the lime box and the direct current motor and used for fixing the sowing part of the miss-sowing marking device to the cassava planter.

As a further preferable mode of the present invention, the seed stem monitoring device includes a sensor detection circuit, a signal processing circuit; the output end of the sensor detection circuit is connected with the input end of the signal processing circuit; the sensor detection circuit is used for sensing that the cassava seed stems falling from the seed discharge port of the cassava planter shield infrared signals to obtain voltage signals; the signal processing circuit is used for processing the voltage signal to obtain a seed sowing pulse sequence corresponding to the cassava seed stem seed sowing sequence.

As a further preferable mode of the present invention, the lower computer is connected to an output end of the signal processing circuit; and the lower computer is used for receiving the seeding pulse sequence, obtaining a seeding time interval, and sending a starting signal to the miss-seeding marking device when the seeding interval exceeds the given minimum miss-seeding interval time.

As a further preferable mode of the present invention, when the lower computer detects that the seed stem falls, the lower computer can update the broadcast volume in time, and the broadcast volume is sent to the vehicle-mounted terminal by the wireless transmission module and displayed by the broadcast volume display module.

As a further preferred aspect of the present invention, the signal processing circuit includes a voltage comparison circuit, a voltage step-down circuit: the voltage comparison circuit is used for distinguishing seed stem passing signals from other interference signals by setting a proper comparison voltage threshold value and converting signals transmitted by the sensor into regular rectangular wave signals; and the voltage reduction circuit is used for adjusting the current of the rectangular wave signal so as to adapt to the input current range of the lower computer pin.

As a further preferable mode of the present invention, the power supply module includes a 12V dc power supply and a voltage regulator circuit; the voltage stabilizing circuit is used for converting 12V voltage into 3.3V and 5V voltage; the upper computer and the lower computer supply power for 5V, and the wireless transmission module supplies power for 3.3V.

The cassava planter can detect that the sowing quantity is automatically updated when the seed stems fall, and sends the seed stems to the upper computer to be displayed through the sowing quantity display module, so that the intelligent level of the cassava planter can be effectively improved, the phenomenon of missed sowing is avoided, and the efficiency is high.

Drawings

FIG. 1 is a block diagram of the overall structure of the present invention;

FIG. 2 is a flowchart of the vehicle end program of the present invention;

FIG. 3 is a flowchart of the detecting end procedure of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a cassava planter miss-seeding monitoring marking system comprises a vehicle-mounted end, a detection end and a power module; the vehicle-mounted end, the detection end and the power supply module are communicated with each other, and the vehicle-mounted end comprises a key, a broadcast volume display, an upper computer and a wireless transmission module; the detection end comprises a wireless transmission module, a lower computer, a miss-seeding marking device and a seed stem monitoring device.

The keys comprise 4 independent keys K1, K2, K3 and K4; and the keys are grounded at one end, the other end of the keys is connected with the common pin of the upper computer, wherein the key K1 enters parameter setting, the K2 selects an input bit, the current input of the K3 is plus 1, and after the parameter setting is finished, the key K4 is pressed to send data.

The broadcast volume display module is an LCD (liquid crystal display) screen; the input end of the LCD screen is connected to a common pin of an upper computer;

the upper computer is STC89C 52; and finishing initialization and coordination work of all modules of the vehicle-mounted end.

The pair of wireless transmission modules NRF24L 01; the input end of a wireless transmission module at the vehicle-mounted end is connected to a common pin of an upper computer; the input end of the wireless transmission module of the detection end is connected to a common pin of a lower computer; the wireless transmission module completes data transmission between the upper computer and the lower computer, and realizes setting of the minimum miss distance and updating of the broadcast quantity of the LCD liquid crystal screen of the broadcast quantity display module.

The lower computer is STC89C 52; and the method is used for finishing initialization and coordination work of all modules at the detection end.

The miss-seeding marking device comprises an electromagnetic relay and a broadcast seeding part; the sowing part of the miss-sowing marking device comprises a direct current motor, a lime box and a fixed bracket; the lime box comprises a loading box, a roller and a transmission chain wheel; the loading box is positioned above the roller and is used for loading the markers; the roller is fan-blade-shaped, so that uniform spreading of the markers is realized; the transmission chain wheel transmits power provided by the direct current motor and provides a proper transmission ratio; the input end of the electromagnetic relay is connected with the output end of the lower computer, the output public end of the electromagnetic relay is connected with the direct current motor, and the output normal open end of the electromagnetic relay is grounded; one end of the direct current motor is connected with the power supply module, and the other end of the direct current motor is connected with the output public end of the electromagnetic relay; the power output shaft of the direct current motor is connected with the central shaft of the lime box transmission chain wheel; the fixed support is arranged below the lime box and the direct current motor and used for fixing the sowing part of the miss-sowing marking device to the cassava planter.

The seed stem monitoring device comprises a sensor detection circuit and a signal processing circuit; the output end of the sensor detection circuit is connected with the input end of the signal processing circuit; the sensor detection circuit is used for sensing that the cassava seed stems falling from the seed discharge port of the cassava planter shield infrared signals to obtain voltage signals; the signal processing circuit is used for processing the voltage signal to obtain a seed sowing pulse sequence corresponding to the cassava seed stem seed sowing sequence.

The lower computer is connected with the output end of the signal processing circuit; and the lower computer is used for receiving the seeding pulse sequence, obtaining a seeding time interval, and sending a starting signal to the miss-seeding marking device when the seeding interval exceeds the given minimum miss-seeding interval time.

When the lower computer detects the seed stem falling, the seeding amount can be updated in time, and the seeding amount is sent to the vehicle-mounted end by the wireless transmission module and displayed by the seeding amount display module.

The signal processing circuit comprises a voltage comparison circuit and a voltage reduction circuit: the voltage comparison circuit is used for distinguishing seed stem passing signals from other interference signals by setting a proper comparison voltage threshold value and converting signals transmitted by the sensor into regular rectangular wave signals; and the voltage reduction circuit is used for adjusting the current of the rectangular wave signal so as to adapt to the input current range of the lower computer pin.

The power supply module comprises a 12V direct-current power supply and a voltage stabilizing circuit; the voltage stabilizing circuit is used for converting 12V voltage into 3.3V and 5V voltage; the upper computer 3 and the lower computer 7 are powered by 5V, and the wireless transmission modules 4 and 6 are powered by 3.3V.

The working principle is as follows: after the system is started, an LCD screen of the broadcast volume display module prompts a user to input the set minimum miss-broadcast interval time delta T, the user enters the minimum miss-broadcast interval time delta T according to K1, selects a set bit according to K2, and adds 1 to the value of the currently set bit according to K3. After setting, the user sends data of the minimum miss-seeding interval time delta T to the lower computer by pressing a key K4, and the lower computer initializes the initial value of the timer 0 after receiving the minimum miss-seeding interval time delta T and starts a seed stem monitoring program. The seed stem monitoring device converts shielding of infrared signals in the movement process of seed stems into voltage signals by using photoelectric sensor elements arranged on the side of a seed discharging port of the cassava planter, and converts output into TTL level signals which are easy to process by a lower computer through a signal processing circuit. When the lower computer detects the seed stem falling, the seeding amount is updated and transmitted to the vehicle-mounted end to be displayed through the seeding amount display module. When the lower computer detects that the falling time interval of the two stems is greater than the given minimum miss-seeding interval time delta T, the miss-seeding marking device is started, a timer 1 inside the upper computer starts to time, the marking device is closed according to the set time, and the timer 1 is cleared.

The sensor model is an LC20-8-XY-02NO light curtain sensor; outputting a high level when no seed stem passes through, and outputting a low level when a seed stem passes through;

the upper computer and the lower computer can be selected as STC89C 52; the detection signal of a sensor in the seed stem monitoring device is transmitted to a common pin of a lower computer through a signal processing circuit, and whether seed falling exists or not is judged through the high-low level change of the pin; the timers 0 and 1 in the lower computer work in a working mode 1, and the timer 0 realizes timing of seed falling intervals and judges whether seeding is missed or not; the timer 1 controls the duration of the marking device operation.

The broadcast display module is an LCD1602, when the broadcast display module is started, a user is prompted to set delta T, after the delta T is set, a key K4 is pressed, data are sent, the lower computer receives the data, an initial value of a timer 0 is initialized, and a seed stem monitoring program is started.

Because the sensor detection circuit and the direct current motor are 12V working voltage, the power supply module further comprises a voltage stabilizing circuit from 12V to 5V and 3.3V, the upper computer and the lower computer supply power for 5V, and the wireless transmission module selects NRF24L01 for 3.3V.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.