Flame weeding machine with targeting function

Abstract

The utility model discloses a flame weeding machine with a targeting function, which comprises a rack capable of being mounted on a power traction mechanism, an electronic ignition controller, a plurality of groups of targeting combustors and targeting adjusting devices, the targeted combustor which is provided with a downward opening and can self-limit a weeding area is installed at the adjusting tail end of the corresponding targeted adjusting device, the electronic ignition controller is used for controlling the ignition needle to ignite fuel gas jetted by the targeted combustor, and the central control system controls the flame jetting amount of the targeted combustor by controlling the supply amount of the fuel gas; the targeted adjusting devices can adjust the height positions, the horizontal positions and the spraying angles of the corresponding targeted combustors, so that the distance between the adjacent targeted combustors is limited, and the flame weeding areas of all the targeted combustors are limited. The flame weeding machine can accurately weed in different ridge widths, the operation speed is greatly improved, the damage rate of flames to crops is low, and safety is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of agricultural machinery and equipment, and concretely relates to a flame weeding machine with a targeting function. BACKGROUND

[0002] In agricultural production practice, the problem of field weeds has a significant harmful effect on crop growth. Weeds will compete with crops for nutrients, water and light resources, and also create conditions for the breeding and spread of pests and diseases, thereby having a negative impact on the healthy growth of crops. As can be seen, weeding work plays a key role in the agricultural production link, and directly relates to the growth trend, yield level and quality of crops.

[0003] Currently, within the scope of agricultural machinery and equipment technology, herbicide spraying devices have been widely used in agricultural production. The principle is to spray chemical herbicides into farmland to control weed growth. This type of device plays an important role in large-scale farmland management, effectively reducing labor input and significantly improving weeding efficiency. However, the traditional herbicide spraying device has obvious defects, as it often fails to achieve precise spraying, and usually only distributes herbicides evenly throughout the field, without accurately locking the area where weeds are located. This not only causes a lot of waste of herbicides, but also, during the spraying process, due to changes in wind and weather conditions, the liquid medicine may drift, thereby possibly causing damage to crops. In addition, long-term use of chemical herbicides can gradually cause weeds to develop resistance, resulting in a continuous decrease in weeding effect, and in order to maintain the weeding effect, more potent chemical agents need to be used, thus forming a vicious cycle. At the same time, most herbicides are chemical synthetic substances, which may volatilize into the air or seep into the soil and water sources during use, posing a potential pollution threat to the environment.

[0004] For the existing flame weeding machine, the design usually uses a fixed-width nozzle, which cannot be flexibly adjusted according to the width of different ridges. Given the differences in planting row spacing and ridge width of different crops, the use of a fixed-width nozzle can easily lead to uneven coverage of the flame, which not only weakens the weeding effect, but also can cause weeds in some areas to be completely removed. In addition, the existing flame weeding machine lacks precise targeting control capability in flame spraying, and the flame is easy to spread to adjacent crops, especially during the seedling stage, as the seedlings have poor tolerance to high temperature, the high temperature of the flame can easily burn them, thereby causing damage to the crops or delaying their growth. Especially in an environment with high wind speed, the flame is affected by the wind and deviates, further increasing the risk of damage to the crops.

[0005] Therefore, the utility model provides a flame targeting weeding technology equipment, which is specially used for precision weeding and weed control in agricultural production, aims to overcome the problems of the existing weeding technology, improve weeding efficiency and precision, and reduce adverse effects on crops and the environment. Utility model content

[0006] The utility model discloses a flame weeding machine with targeting function, which can solve the problems of the existing flame spray head, such as unable to adjust according to the width of the field ridge, lack of targeting and easy to damage crops, and aims to reduce the dependence on chemical herbicides, provide a more environmentally friendly, safe and efficient physical weeding scheme, thereby improve the efficiency and sustainability of agricultural production.

[0007] The utility model discloses a flame weeding machine with targeting function, which can solve the problems of the existing flame spray head, such as unable to adjust according to the width of the field ridge, lack of targeting and easy to damage crops, and aims to reduce the dependence on chemical herbicides, provide a more environmentally friendly, safe and efficient physical weeding scheme, thereby improve the efficiency and sustainability of agricultural production.

[0008] A flame weeding machine with targeting function, characterized in that: the flame weeding machine includes a rack capable of being installed on a power traction mechanism, an electronic ignition controller, a plurality of corresponding targeting burners and targeting adjusting devices arranged on the rack, a targeting burner with an opening downward and capable of self-limiting a weeding area is installed on the adjusting end of the corresponding targeting adjusting device, and the electronic ignition controller is used for controlling the ignition of the gas sprayed by the targeting burner, the targeting adjusting device can adjust the height position, horizontal position and spray angle of the corresponding targeting burner, thereby limiting the spacing of adjacent targeting burners and limiting the flame weeding area of each targeting burner.

[0009] The targeting burner is composed of a flame spray head and a heat-insulating windproof cover with a trapezoidal amplification structure, the flame spray head is inserted from the positioning installation hole at the top of the heat-insulating windproof cover and is arranged obliquely forward, the heat-insulating windproof cover with the bottom flush and the air holes arranged on the wall is fixedly installed on the adjusting end of the corresponding targeting adjusting device, and the heat-insulating windproof cover can concentrate the spray flame of the flame spray head.

[0010] Air holes and / or a blower provided with air for the heat-insulating windproof cover are arranged on the left and right side surfaces and the front side surface of the heat-insulating windproof cover.

[0011] Three rows of air holes are arranged on the left and right side surfaces of the heat-insulating windproof cover, and four rows of air holes are arranged on the front side surface, and the diameter of the air holes is 10-15mm, so that sufficient oxygen content is maintained in the heat-insulating windproof cover under the influence of reduced wind, and the gas is fully burned.

[0012] The heat insulation and windproof cover has a gradually enlarged structure from small top to large bottom, and the front side of the heat insulation and windproof cover has an inclination angle of not less than 60 degrees, the rear side has an inclination angle of not more than 20 degrees, the left side has an inclination of 10-25 degrees, and the right side has an inclination of 10-25 degrees.

[0013] The flame weeding machine further comprises a target combustion device composed of the target combustion burner and the gas tank, the gas tank arranged on the frame is connected with the gas distribution valve through the gas supply pipe with the electromagnetic valve, the gas distribution valve is connected with the flame spray head in the corresponding target combustion burner through the gas distribution pipe to provide the gas, the electromagnetic valve is used for opening and closing the gas, and the gas distribution valve is used for distributing the gas amount, the electromagnetic valve and the gas distribution valve are connected with the instruction control unit of the central control system through the lines respectively, and the opening degrees of the electromagnetic valve and the gas distribution valve are controlled by the central control system respectively, and the central control system controls the flame injection amount of the target combustion burner by controlling the gas supply amount.

[0014] The electromagnetic valve and / or the gas distribution valve are provided with an emergency stop switch, the emergency stop switch is arranged on the electric control cabinet or the power traction mechanism, and the emergency stop switch is used for closing the electromagnetic valve and / or the gas distribution valve.

[0015] The flame weeding machine further comprises a weed identification system composed of the moisture sensor and the position sensor, the front part of the flame spray head in each target combustion burner is arranged with the moisture sensor and the position sensor, the moisture sensor for monitoring the moisture condition of the weeds in the field and the position sensor for monitoring the position information of the weeds in the field can transmit the monitoring signals to the signal processing unit of the central control system in real time, the signal processing unit generates the opening degree instruction of the electromagnetic valve and the opening degree instruction of the gas distribution valve corresponding to each target combustion burner based on the real-time signals of the weed identification system and transmits the opening degree instruction to the instruction control unit, and the opening degrees of the electromagnetic valve and the gas distribution valve are controlled by the instruction control unit.

[0016] The flame weeding machine further comprises a gas monitoring system composed of the gas sensor capable of monitoring the gas concentration and flow state in real time, the gas sensor is arranged in each target combustion burner and at each gas distribution valve, and the gas sensor can transmit the monitoring signals to the signal processing unit of the central control system in real time; the signal processing unit generates the opening degree adjustment instruction of the electromagnetic valve and the opening degree adjustment instruction of the gas distribution valve corresponding to each target combustion burner based on the real-time monitoring signals of the gas sensor and transmits the opening degree adjustment instruction to the instruction control unit, and the opening degrees of the electromagnetic valve and the gas distribution valve are controlled by the instruction control unit.

[0017] The central control system comprises a signal processing unit and an instruction control unit, the signal processing unit is connected with the moisture sensor and the position sensor in the weed identification system, connected with the gas sensor in the gas monitoring system, and connected with the instruction control unit. The signal processing unit is used for receiving the moisture condition and position information of the field weeds provided by the weed identification system, receiving and analyzing the gas concentration and flow state monitored by the gas monitoring system, dynamically calculating the required spraying position and spraying intensity of the flame jet head and providing instructions to the instruction control unit. The instruction control unit automatically adjusts the height, horizontal position and spraying angle of the corresponding targeted burner through the targeting adjusting device based on the instructions of the signal processing unit, adjusts the gas supply amount of the flame jet head in each targeted burner by controlling the opening degree of the electromagnetic valve and the gas distribution valve; or manually controls the targeting adjusting device to adjust the height, horizontal position and spraying angle of the corresponding targeted burner based on the required spraying position of the flame jet head dynamically calculated by the signal processing unit, and provides instructions to the instruction control unit based on the required spraying intensity of the flame jet head dynamically calculated by the signal processing unit. The instruction control unit adjusts the gas supply amount of the flame jet head in each targeted burner by controlling the opening degree of the electromagnetic valve and the gas distribution valve based on the instructions of the signal processing unit.

[0018] The central control system further comprises a concentration threshold setting unit, an alarm unit and an LED display screen. The concentration threshold setting unit is connected with the signal processing unit and the LED display screen through lines. The concentration threshold setting unit inputs the pre-set gas concentration threshold into the signal processing unit and displays it through the LED display screen. The alarm unit is connected with the signal processing unit and the LED display screen through lines. When the received gas concentration of the signal processing unit is outside the gas concentration threshold for a long time, the signal processing unit transmits an alarm signal to the alarm unit and displays the alarm information on the LED display screen. The LED display screen is connected with the signal processing unit through lines to display the information provided by the signal processing unit.

[0019] The targeting adjustment device adopts a targeting automatic adjustment mechanism or a targeting manual adjustment mechanism, an image acquisition device capable of cooperating with the targeting automatic adjustment mechanism or the targeting manual adjustment mechanism is installed on the rack, the image acquisition device is used to acquire the situation of the field ridge and deliver a signal to a signal processing unit of the central control system, the signal processing unit displays the signal acquired by the image acquisition device on an LED display screen, the central control system automatically adjusts the distance of the targeting burner through the targeting automatic adjustment mechanism or manually adjusts the distance of the targeting burner through the targeting manual adjustment mechanism; the targeting automatic adjustment mechanism adopts a mechanical arm, a combination of a three-dimensional adjustment mechanism and a rotating shaft, or a combination of a height adjustment mechanism configured with a motor, a lateral adjustment mechanism configured with a motor, and an angle adjustment mechanism configured with a motor, each joint motor on the mechanical arm can respectively receive instruction information of the central control system to make lifting, horizontal moving, and rotating actions, and the targeting burner is installed on the output end of the mechanical arm; corresponding motors on the three-dimensional adjustment mechanism can respectively receive instruction information of the central control system to make lifting and horizontal moving actions, and corresponding motors on the rotating shaft can receive instruction information of the central control system to make rotating actions, and the targeting burner is installed on the output end of the three-dimensional adjustment mechanism and the three-dimensional adjustment mechanism is installed on the output end of the rotating shaft, or the targeting burner is installed on the output end of the rotating shaft and the rotating shaft is installed on the output end of the three-dimensional adjustment mechanism; corresponding motors on the height adjustment mechanism can receive instruction information of the central control system to make lifting actions, corresponding motors on the lateral adjustment mechanism can receive instruction information of the central control system to make horizontal moving actions, and corresponding motors on the angle adjustment mechanism can receive instruction information of the central control system to make rotating actions, the height adjustment mechanism is installed on the output end of the lateral adjustment mechanism, the angle adjustment mechanism is installed on the output end of the height adjustment mechanism, and the targeting burner is installed on the output end of the angle adjustment mechanism, or the height adjustment mechanism is installed on the output end of the angle adjustment mechanism, the lateral adjustment mechanism is installed on the output end of the height adjustment mechanism, and the targeting burner is installed on the output end of the lateral adjustment mechanism, or the angle adjustment mechanism is installed on the output end of the lateral adjustment mechanism, the height adjustment mechanism is installed on the output end of the angle adjustment mechanism, and the targeting burner is installed on the output end of the height adjustment mechanism, or the angle adjustment mechanism is installed on the output end of the height adjustment mechanism, the lateral adjustment mechanism is installed on the output end of the angle adjustment mechanism, and the targeting burner is installed on the output end of the lateral adjustment mechanism, or the lateral adjustment mechanism is installed on the output end of the height adjustment mechanism, the angle adjustment mechanism is installed on the output end of the lateral adjustment mechanism, and the targeting burner is installed on the output end of the angle adjustment mechanism, or the lateral adjustment mechanism is installed on the output end of the angle adjustment mechanism, the height adjustment mechanism is installed on the output end of the lateral adjustment mechanism, and the targeting burner is installed on the output end of the height adjustment mechanism.The targeting manual adjustment mechanism includes an angle adjustment mechanism, a height adjustment mechanism and a lateral adjustment mechanism, the angle adjustment mechanism includes an angle adjustment mount installed on the top mounting adjusting rod of the rack, an upper gear adjustment piece located on the angle adjustment mount, an angle adjustment rod, and a lower gear adjustment piece located on the height adjustment hole plate, the angle adjustment mount can move horizontally on the top mounting adjusting rod, and the two ends of the angle adjustment rod are connected with different hole positions on the upper gear adjustment piece and the lower gear adjustment piece to adjust the angle of the height adjustment hole plate, the lateral adjustment mechanism includes a lateral adjustment mount installed on the bottom mounting adjusting rod of the rack, the lateral adjustment mount can move horizontally on the mounting adjusting rod, and the tail of the lateral adjustment mount is provided with a hole plate mounting groove for mounting the height adjustment hole plate connected by a pin shaft, and the height adjustment mechanism includes a height adjustment hole plate provided with height adjustment gears, the height adjustment hole plate is matched with the height adjustment gears by a height adjustment pin to mount the heat insulation and windproof cover of the targeting burner.

[0020] The rack includes a base, side plates, cabinet support frames, tank body fixing frames, and a top mounting adjusting rod, the space above the base is divided into several areas by the plurality of side plates arranged on the base, the middle area is used for mounting a three-point suspension mechanism, the top of the cabinet support frame mounted on the adjacent side plates is used for mounting an electric control cabinet, the areas on both sides are respectively arranged with the tank body fixing frames for placing gas tanks, the top end of the side plate is used for suspending and fixing the top mounting adjusting rod, and the top mounting adjusting rod is used for mounting the targeting automatic adjustment mechanism in the targeting adjustment device, and the image acquisition equipment matched with the targeting adjustment device is mounted on the top mounting adjusting rod or the electric control cabinet.

[0021] When the wireless signal receivers are arranged on the central control system, the electronic ignition controller and the electromagnetic valve, the opening and closing of the central control system, the electronic ignition controller and even the electromagnetic valve can be controlled by remote control instructions.

[0022] The electronic ignition controller, the electromagnetic valve and the gas distribution valve are integrated in the electric control box, the electronic ignition controller is connected with the ignition needle at the flame jet head through the transmission electronic wire to transmit electrons to make the gas burn.

[0023] The central control system is arranged in the electric control box.

[0024] The central control system, the weed identification system and the variable spraying system constitute an intelligent identification control system of the flame weeding machine.

[0025] Compared with the prior art, the flame weeding machine has the following advantages:

[0026] The flame weeding machine provided by the utility model has the advantages that the flame weeding machine can accurately weed at different field ridge widths, the operation speed is greatly improved, the damage rate of crops caused by the flame is low, and the safety is high; the central control system can accurately weed, improve the operation efficiency and reduce the damage to crops by regulating and controlling the flame spraying head; the electronic ignition controller and the remote operation function ensure high safety; the flame weeding machine device is designed flexibly and can adapt to different terrains and crop demands, has remarkable effects in reducing the use of herbicides, energy saving and environmental protection, can promote the development of green agriculture, and has a wide application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0027] The flame weeding machine provided by the utility model has the advantages that the flame weeding machine can accurately weed at different field ridge widths, the operation speed is greatly improved, the damage rate of crops caused by the flame is low, and the safety is high; the central control system can accurately weed, improve the operation efficiency and reduce the damage to crops by regulating and controlling the flame spraying head; the electronic ignition controller and the remote operation function ensure high safety; the flame weeding machine device is designed flexibly and can adapt to different terrains and crop demands, has remarkable effects in reducing the use of herbicides, energy saving and environmental protection, can promote the development of green agriculture, and has a wide application prospect. Figure 1 The flame weeding machine provided by the utility model has the advantages that the flame weeding machine can accurately weed at different field ridge widths, the operation speed is greatly improved, the damage rate of crops caused by the flame is low, and the safety is high; the central control system can accurately weed, improve the operation efficiency and reduce the damage to crops by regulating and controlling the flame spraying head; the electronic ignition controller and the remote operation function ensure high safety; the flame weeding machine device is designed flexibly and can adapt to different terrains and crop demands, has remarkable effects in reducing the use of herbicides, energy saving and environmental protection, can promote the development of green agriculture, and has a wide application prospect. The flame weeding machine provided by the utility model has the advantages that the flame weeding machine can accurately weed at different field ridge widths, the operation speed is greatly improved, the damage rate of crops caused by the flame is low, and the safety is high; the central control system can accurately weed, improve the operation efficiency and reduce the damage to crops by regulating and controlling the flame spraying head; the electronic ignition controller and the remote operation function ensure high safety; the flame weeding machine device is designed flexibly and can adapt to different terrains and crop demands, has remarkable effects in reducing the use of herbicides, energy saving and environmental protection, can promote the development of green agriculture, and has a wide application prospect.

[0028] The flame weeding machine provided by the utility model has the advantages that the flame weeding machine can accurately weed at different field ridge widths, the operation speed is greatly improved, the damage rate of crops caused by the flame is low, and the safety is high; the central control system can accurately weed, improve the operation efficiency and reduce the damage to crops by regulating and controlling the flame spraying head; the electronic ignition controller and the remote operation function ensure high safety; the flame weeding machine device is designed flexibly and can adapt to different terrains and crop demands, has remarkable effects in reducing the use of herbicides, energy saving and environmental protection, can promote the development of green agriculture, and has a wide application prospect. Figure 2 The flame weeding machine provided by the utility model has the advantages that the flame weeding machine can accurately weed at different field ridge widths, the operation speed is greatly improved, the damage rate of crops caused by the flame is low, and the safety is high; the central control system can accurately weed, improve the operation efficiency and reduce the damage to crops by regulating and controlling the flame spraying head; the electronic ignition controller and the remote operation function ensure high safety; the flame weeding machine device is designed flexibly and can adapt to different terrains and crop demands, has remarkable effects in reducing the use of herbicides, energy saving and environmental protection, can promote the development of green agriculture, and has a wide application prospect. The flame weeding machine provided by the utility model has the advantages that the flame weeding machine can accurately weed at different field ridge widths, the operation speed is greatly improved, the damage rate of crops caused by the flame is low, and the safety is high; the central control system can accurately weed, improve the operation efficiency and reduce the damage to crops by regulating and controlling the flame spraying head; the electronic ignition controller and the remote operation function ensure high safety; the flame weeding machine device is designed flexibly and can adapt to different terrains and crop demands, has remarkable effects in reducing the use of herbicides, energy saving and environmental protection, can promote the development of green agriculture, and has a wide application prospect.

[0029] The flame weeding machine provided by the utility model has the advantages that the flame weeding machine can accurately weed at different field ridge widths, the operation speed is greatly improved, the damage rate of crops caused by the flame is low, and the safety is high; the central control system can accurately weed, improve the operation efficiency and reduce the damage to crops by regulating and controlling the flame spraying head; the electronic ignition controller and the remote operation function ensure high safety; the flame weeding machine device is designed flexibly and can adapt to different terrains and crop demands, has remarkable effects in reducing the use of herbicides, energy saving and environmental protection, can promote the development of green agriculture, and has a wide application prospect.Figure 3 A schematic diagram of the flame nozzle structure of a flame weed killer with targeting function provided for an embodiment of this utility model;

[0030] Appendix Figure 4 A schematic diagram of the electrical control cabinet layout of a flame weed killer with targeting function provided for an embodiment of this utility model;

[0031] Appendix Figure 5 A schematic diagram of the target manual adjustment mechanism of a flame weed killer with targeting function provided for an embodiment of this utility model;

[0032] Appendix Figure 6 This is a control principle diagram of a flame weed killer with targeting function provided for an embodiment of the present invention.

[0033] Wherein: 1—frame; 10—base; 11—side plate; 12—cabinet support frame; 13—tank fixing frame; 14—top mounting adjustment rod; 15—bottom mounting adjustment rod; 16—three-point suspension mechanism;

[0034] 2—Targeted combustion device; 20—Targeted burner; 21—Flame nozzle; 22—Heat insulation and windproof cover; 23—Gas cylinder;

[0035] 3—Targeting adjustment device; 31—Targeting manual adjustment mechanism; 32—Angle adjustment mechanism; 321—Angle adjustment mounting base; 322—Upper gear adjustment plate; 323—Angle adjustment lever; 324—Lower gear adjustment plate; 33—Height adjustment mechanism; 331—Height adjustment orifice plate; 332—Height adjustment gear; 333—Height adjustment pin; 34—Horizontal adjustment mechanism; 341—Horizontal adjustment mounting base; 342—Orifice plate mounting slot;

[0036] 4—Electrical control cabinet; 40—Electronic ignition controller; 41—Emergency stop switch;

[0037] 5—Central control system; 50—Signal processing unit; 51—Command control unit; 52—Concentration threshold setting unit; 53—Alarm unit; 54—LED display screen;

[0038] 6—Weed identification system; 61—Moisture sensor; 62—Position sensor;

[0039] 7—Gas monitoring system; 71—Gas sensor;

[0040] 8—Gas distribution system; 81—Solenoid valve; 82—Gas distribution valve;

[0041] 9—Image acquisition equipment. Detailed Implementation

[0042] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0043] like Figures 1-6 As shown, a flame weed cutter with targeting function includes a frame 1 that can be mounted on a power traction mechanism and an electronic ignition controller 40. Multiple sets of one-to-one corresponding target burners 20 and target adjustment devices 3 are arranged on the frame 1. The target burners 20 with downward openings and capable of defining the weeding area are mounted on the adjustment end of the corresponding target adjustment device 3. The electronic ignition controller 40 is used to control the ignition needle to ignite the gas ejected from the target burner 20. The target adjustment device 3 can adjust the height position, horizontal position and injection angle of the corresponding target burner 20, thereby limiting the distance between adjacent target burners 20 and defining the flame weeding area of ​​each target burner 20.

[0044] The frame 1 includes a base 10, side plates 11, cabinet support frame 12, tank fixing frame 13, and top mounting adjustment rod 14. Multiple side plates 11 on the base 10 divide the space above the base into several areas. The central area is used to install a three-point suspension mechanism 16. The top of the cabinet support frame 12 installed on the adjacent side plates 11 is used to install the electrical control cabinet 4. The two sides are respectively arranged with tank fixing frames 13 for placing gas tanks 23. The top of the side plates 11 is used to suspend and fix the top mounting adjustment rod 14, and the top mounting adjustment rod 14 is used to install the automatic target adjustment mechanism in the target adjustment device 3. The image acquisition device 9 that cooperates with the target adjustment device 3 is installed on the top mounting adjustment rod 14 or on the electrical control cabinet 4. The base 10 is also provided with a suspended and fixed bottom mounting adjustment rod 15. The bottom mounting adjustment rod 15 and the top mounting adjustment rod 14 cooperate with each other to install the manual target adjustment mechanism in the target adjustment device 3, and the image acquisition device 9 that cooperates with the target adjustment device 3 is installed on the top mounting adjustment rod 14 or on the electrical control cabinet 4.

[0045] The flame weeding machine further comprises a targeted combustion device 2 composed of the targeted combustion burner 20 and the gas tank 23, the gas tank 23 arranged on the frame 1 is connected with a gas distribution valve 82 through a gas supply pipe with an electromagnetic valve 81, the gas distribution valve 82 is connected with the flame nozzle 21 in the corresponding targeted combustion burner 20 through a gas distribution pipe to provide gas, the electromagnetic valve 81 and the gas distribution valve 82 are respectively connected with the instruction control unit 51 of the central control system 5 through lines and the opening degrees of the electromagnetic valve 81 and the gas distribution valve 82 are respectively controlled by the central control system 5, the central control system 5 controls the flame injection amount of the targeted combustion burner 20 by controlling the gas supply amount; the electromagnetic valve 81 and / or the gas distribution valve 82 are provided with an emergency stop switch 41, the emergency stop switch 41 is arranged on the electric control cabinet 4 or the power traction mechanism, and the emergency stop switch 41 is used for closing the electromagnetic valve 81 and / or the gas distribution valve 82. The targeted combustion burner 20 is composed of the flame nozzle 21 and the heat insulation wind shield 22 with a trapezoidal amplification structure, the flame nozzle 21 is inserted from the positioning installation hole at the top of the heat insulation wind shield 22 and is arranged obliquely forward, the heat insulation wind shield 22 with the bottom flush and the air permeable hole arranged on the wall is fixedly installed on the adjustment end of the corresponding targeted adjustment device 3; the left and right side surfaces and the front side surface of the heat insulation wind shield 22 are all arranged with air permeable holes and / or the frame 1 is provided with an air blower to provide air for the heat insulation wind shield 22.

[0046] The flame weeding machine further comprises a weed identification system 6 composed of a moisture sensor 61 and a position sensor 62, the front part of the flame nozzle 21 in each targeted combustion burner 20 is arranged with the moisture sensor 61 and the position sensor 62, the moisture sensor 61 and the position sensor 62 can transmit the monitoring signal to the signal processing unit 50 of the central control system 5 in real time; the moisture sensor 61 and the position sensor 62 can monitor the moisture condition and position information of the weeds in the field in real time and feed back to the signal processing unit 50 of the central control system 5, thereby providing key data basis for subsequent precise weeding operation. The signal processing unit 50 generates the opening degree instruction of the electromagnetic valve 81 and the opening degree instruction of the gas distribution valve 82 corresponding to each targeted combustion burner 20 based on the real-time signal of the weed identification system 6 and transmits to the instruction control unit 51, and the opening degrees of the electromagnetic valve 81 and the gas distribution valve 82 are controlled by the instruction control unit 51.

[0047] The flame weeding machine further comprises a gas monitoring system 7 composed of gas sensors 71 capable of monitoring the gas concentration and flow state in real time, each gas sensor 71 being arranged in the heat-insulating wind shield 22 of each targeted burner 20 and at each gas distribution valve 82, and each gas sensor 71 being capable of transmitting a monitoring signal to the signal processing unit 50 of the central control system 5 in real time; the gas sensors 71 are used to monitor the gas concentration and flow state in real time and feed back to the signal processing unit 50 of the central control system 5, the signal processing unit 50 generates opening adjustment instructions of the electromagnetic valves 81 and opening adjustment instructions of the gas distribution valves 82 corresponding to each targeted burner 20 based on the real-time monitoring signals of the gas sensors 71 and transmits them to the instruction control unit 51, and the opening adjustment of the electromagnetic valves 81 and the gas distribution valves 82 is controlled by the instruction control unit 51. The gas monitoring system 7 provides data support for the effective control and reasonable use of gas by the central control system 5, and guarantees the stability and safety of the flame weeding operation.

[0048] The central control system 5 comprises a signal processing unit 50 and an instruction control unit 51, the signal processing unit 50 is connected with the moisture sensor 61 and the position sensor 62 in the weed identification system 6, connected with the gas sensor 71 in the gas monitoring system 7, and connected with the instruction control unit 51. The signal processing unit 50 is used to receive the moisture condition and position information of the field weeds provided by the weed identification system 6, to receive and analyze the gas concentration and flow state monitored by the gas monitoring system 7, to dynamically calculate the required spraying position (height position, horizontal position and angle) and spraying intensity of the flame jet head 21 and to provide instructions to the instruction control unit 51. The instruction control unit 51 automatically adjusts the height, horizontal position and spraying angle of the corresponding target burner 20 through the target adjusting device 3 based on the instructions of the signal processing unit 50, and adjusts the gas supply amount of the flame jet head 21 in each target burner 20 by controlling the opening degree of the electromagnetic valve 81 and the gas distribution valve 82; or manually controls the target adjusting device 3 to adjust the height, horizontal position and spraying angle of the corresponding target burner 20 based on the required spraying position of the flame jet head 21 dynamically calculated by the signal processing unit 50, and provides instructions to the instruction control unit 51 based on the required spraying intensity of the flame jet head 21 dynamically calculated by the signal processing unit 50. The instruction control unit 51 adjusts the gas supply amount of the flame jet head 21 in each target burner 20 by controlling the opening degree of the electromagnetic valve 81 and the gas distribution valve 82 based on the instructions of the signal processing unit 50. The central control system 5 further comprises a concentration threshold setting unit 52, an alarm unit 53 and an LED display screen 54, the concentration threshold setting unit 52 is connected with the signal processing unit 50 and the LED display screen 54 through lines, the concentration threshold setting unit 52 inputs the pre-set gas concentration threshold into the signal processing unit 50 and displays it through the LED display screen 54; the alarm unit 53 is connected with the signal processing unit 50 and the LED display screen 54 through lines, when the received gas concentration of the signal processing unit 50 is outside the gas concentration threshold for a long time, the signal processing unit 50 transmits an alarm signal to the alarm unit 53 and the alarm information is displayed on the LED display screen 54; the LED display screen 54 is connected with the signal processing unit 50 through lines to display the information provided by the signal processing unit 50. The central control system 5 dynamically calculates the best angle and suitable intensity of the flame jet according to the actual situation of the weeds and the gas state, to ensure the accuracy and efficiency of the weeding operation.

[0049] The target adjustment device 3 adopts a target automatic adjustment mechanism or a target manual adjustment mechanism 31, and an image acquisition device 9 capable of cooperating with the target automatic adjustment mechanism or the target manual adjustment mechanism 31 is installed on the frame 1. The image acquisition device 9 is used to acquire the situation of the field ridge and transmit a signal to a signal processing unit 50 of the central control system 5. The signal processing unit 50 displays the signal acquired by the image acquisition device 9 on an LED display screen 54. The central control system 5 automatically adjusts the distance of the target burner 20 through the target automatic adjustment mechanism or manually adjusts the distance of the target burner 20 through the target manual adjustment mechanism 31.

[0050] The target automatic adjustment mechanism adopts a mechanical arm, or adopts a combination of a three-dimensional adjustment mechanism and a rotating shaft, or adopts a combination of a height adjustment mechanism 33 configured with a motor and a lateral adjustment mechanism 34 configured with a motor and an angle adjustment mechanism 32 configured with a motor, the joint motors on the mechanical arm can respectively receive the instruction information of the central control system 5 to make lifting, horizontal moving and rotating actions, and the target burner 20 is installed on the output end of the mechanical arm; the corresponding motors on the three-dimensional adjustment mechanism can respectively receive the instruction information of the central control system 5 to make lifting and horizontal moving actions, and the corresponding motor on the rotating shaft can receive the instruction information of the central control system 5 to make rotating action, and the target burner 20 is installed on the output end of the three-dimensional adjustment mechanism and the three-dimensional adjustment mechanism is installed on the output end of the rotating shaft, or the target burner 20 is installed on the output end of the rotating shaft and the rotating shaft is installed on the output end of the three-dimensional adjustment mechanism; the corresponding motors on the height adjustment mechanism 33 can receive the instruction information of the central control system 5 to make lifting action, the corresponding motors on the lateral adjustment mechanism 34 can receive the instruction information of the central control system 5 to make horizontal action, and the corresponding motors on the angle adjustment mechanism 32 can receive the instruction information of the central control system 5 to make rotating action, the height adjustment mechanism 33 is installed on the output end of the lateral adjustment mechanism 34, the angle adjustment mechanism 32 is installed on the output end of the height adjustment mechanism 33, and the target burner 20 is installed on the output end of the angle adjustment mechanism 32, or the height adjustment mechanism 33 is installed on the output end of the angle adjustment mechanism 32, the lateral adjustment mechanism 34 is installed on the output end of the height adjustment mechanism 33, and the target burner 20 is installed on the output end of the lateral adjustment mechanism 34, or the angle adjustment mechanism 32 is installed on the output end of the lateral adjustment mechanism 34, the height adjustment mechanism 33 is installed on the output end of the angle adjustment mechanism 32, and the target burner 20 is installed on the output end of the height adjustment mechanism 33, or the angle adjustment mechanism 32 is installed on the output end of the height adjustment mechanism 33, the lateral adjustment mechanism 34 is installed on the output end of the angle adjustment mechanism 32, and the target burner 20 is installed on the output end of the lateral adjustment mechanism 34, or the lateral adjustment mechanism 34 is installed on the output end of the height adjustment mechanism 33, the angle adjustment mechanism 32 is installed on the output end of the lateral adjustment mechanism 34, and the target burner 20 is installed on the output end of the angle adjustment mechanism 32, or the lateral adjustment mechanism 34 is installed on the output end of the angle adjustment mechanism 32, the height adjustment mechanism 33 is installed on the output end of the lateral adjustment mechanism 34, and the target burner 20 is installed on the output end of the height adjustment mechanism 33.

[0051] The targeting manual adjusting mechanism 31 comprises an angle adjusting mechanism 32, a height adjusting mechanism 33 and a transverse adjusting mechanism 34, the angle adjusting mechanism 32 comprises an angle adjusting mounting base 321 mounted on the top mounting adjusting rod 14 of the frame 1, an upper gear adjusting piece 322 located on the angle adjusting mounting base 321, an angle adjusting pull rod 323, and a lower gear adjusting piece 324 located on the height adjusting hole plate 331, the angle adjusting mounting base 321 can move horizontally on the top mounting adjusting rod 14, and the two ends of the angle adjusting pull rod 323 are connected with different hole positions on the upper gear adjusting piece 322 and different hole positions on the lower gear adjusting piece 324 to adjust the angle of the height adjusting hole plate 331, the transverse adjusting mechanism 34 comprises a transverse adjusting mounting base 341 mounted on the bottom mounting adjusting rod 15 of the frame 1, the transverse adjusting mounting base 341 can move horizontally on the mounting adjusting rod 15, and the tail of the transverse adjusting mounting base 341 is provided with a hole plate mounting groove 342 for mounting the height adjusting hole plate 331 by using a pin shaft, and the height adjusting mechanism 33 comprises the height adjusting hole plate 331 provided with height adjusting gears 332, and the height adjusting hole plate 331 is matched with the height adjusting gears 332 by using height adjusting pins 333 to mount the heat insulation wind shield 22 of the targeted flame burner 20.

[0052] The flame weeding machine with the targeting function comprises Figure 6The intelligent identification control system for the flame weeding machine includes a central control system 5, a weed identification system 6, and a variable spraying system. The central control system 5 includes a signal processing unit 50, an instruction control unit 51, a concentration threshold setting unit 52, an alarm unit 53, and an LED display screen 54. The signal processing unit 50 is responsible for collecting signals of the moisture sensors 61, the position sensors 62, and the gas sensors 71, forming analyzable data, performing comprehensive data analysis, and generating execution instructions to be transmitted to each execution unit through the instruction control unit 51; the concentration threshold setting unit 52 sets the gas concentration in the heat-insulating wind shield 22 manually, and when the gas concentration monitored by the gas sensors 71 in the heat-insulating wind shield 22 exceeds the set range, the signal is transmitted to the alarm unit 53 and the variable spraying system at the same time, and the variable spraying system adjusts through the valve or adjusts by increasing the air intake of the air blower; the alarm unit 53 issues an alarm when each gas sensor 71 is detected to be abnormal for a long time, i.e., higher or lower than the set concentration threshold for a long time; and the LED display screen 54 displays various data of the flame spray head 21, the concentration threshold, etc. The weed identification system 6 includes the moisture sensors 61 for identifying the moisture of weeds and the position sensors 62 for identifying the position of weeds, which are installed in the heat-insulating wind shield 22 for real-time monitoring; the moisture sensors 61 and the position sensors 62 collect and transmit the weed information to the central control system 5, which is first calculated and analyzed by the signal processing unit 50 of the central control system 5, and then generates execution instructions through the instruction control unit 51 to be transmitted to each execution unit, so as to adjust the spraying position and the gas supply amount of the flame spray head 21. The variable spraying system includes a gas monitoring system 7 and a gas distribution system 8. The gas monitoring system 7 includes a plurality of gas sensors 71 installed on the gas distribution valve 82, around the flame spray head 21, and in the heat-insulating wind shield 22, which collects and transmits data to the central control system 71 in real time to detect the gas flow in real time. The central control system 5 comprehensively analyzes the collected moisture and flow information to determine appropriate instructions, which are then transmitted to the gas distribution system 8 to realize real-time detection and control of the gas flow. The gas distribution system 8 includes the electromagnetic valve 81 and the gas distribution valve 82, which controls the gas flow according to the control signal to control the gas supply amount. Embodiment

[0053] As Figure 1 , Figure 6The illustrated flame weed killer includes a frame 1, a targeted combustion device 2, a targeted adjustment device 3, an electrical control cabinet 4, a central control system 5, a weed identification system 6, a gas monitoring system 7, a gas distribution system 8, and an image acquisition device 9. The frame 1 includes a base 10, side plates 11, a cabinet support frame 12, a tank fixing frame 13, a top mounting adjustment rod 14, a bottom mounting adjustment rod 15, and a three-point suspension mechanism 16. The base 10 has four vertically arranged side plates 11, with three areas separated by the four side plates 11 for placing... The gas tank 23's tank fixing frame 13 is located in the area above the base 10 on both sides. The cabinet support frame 12 for installing the electrical control cabinet 4 and the three-point suspension mechanism 16 for connecting the power traction mechanism are located in the middle area above the base 10. The top mounting adjustment rod 14 is suspended at the top rear end of the side plate 11, and the bottom mounting adjustment rod 15 is suspended at the rear end of the base 10. The top mounting adjustment rod 14 and the bottom mounting adjustment rod 15 cooperate to install the target adjustment device 3. The power traction mechanism is a high ground clearance narrow wheel tractor with three gears: 1, 2, and 3. The targeted combustion device 2 includes a targeted burner 20 consisting of a flame nozzle 21 and a heat-insulating and windproof cover 22 with a trapezoidal enlarged structure, and a gas cylinder 23. The gas cylinder 23 is connected to a gas distribution valve 82 via a gas supply pipe equipped with a solenoid valve 81. The gas distribution valve 82 is connected to the flame nozzle 21 in the corresponding targeted burner 20 via a gas distribution pipe to supply gas. The solenoid valve 81 for opening and closing the gas and the gas distribution valve 82 for distributing the gas quantity are respectively connected to the command control unit 51 of the central control system 5 via circuits, and the opening degree of the solenoid valve 81 and the gas distribution valve 82 are respectively controlled by the central control system 5. The targeted burner 20 is mounted on the height adjustment mechanism 33 of the targeted adjustment device 3. Valve 81 and gas distribution valve 82 are installed in electrical control cabinet 4; electronic ignition controller 40 is used to control the ignition needle at the nozzle of flame nozzle 21. Emergency stop switch 41 and electronic ignition controller 40 are both installed in electrical control cabinet 4; the target adjustment device 3 consists of angle adjustment mechanism 32, height adjustment mechanism 33 and lateral adjustment mechanism 34. The angle adjustment mechanism 32 is installed on the top mounting adjustment rod 14 and connected to the height adjustment mechanism 33. The lateral adjustment mechanism 34 is installed on the bottom mounting adjustment rod 15 and connected to the height adjustment mechanism 33. The angle adjustment mechanism 32, height adjustment mechanism 33 and lateral adjustment mechanism 34 are combined to adjust the angle, height and horizontal position of flame nozzle 21.

[0054] like Figure 2 As shown: the frame 1 is 2300mm long, 760mm wide, and 500mm high; the base 10 and side plates 11 are made of high-temperature resistant iron to isolate flames; the canister fixing frame 13 is fixed to the base 10 by welding and can accommodate two standard 15kg gas canisters 23.

[0055] like Figure 1 , Figure 3As shown: the flame weeding machine is equipped with 5 flame nozzles 21, each of which has a spray diameter of 60mm, a length of 108mm, and a spray temperature of about 1200℃; the flame nozzles 21 are fixed in the heat-insulating wind shield 22, and are adjusted on the bottom adjusting rod 15, with an adjusting interval of 10-20cm to adapt to different planting ridge widths.

[0056] As shown in Figure 1 , Figure 4 : the electromagnetic valve 81 and the gas distribution valve 82 are configured in the electric control cabinet 40, and the gas distribution valve 82 controls the distribution of the gas amount to the 5 flame nozzles 21; the control distance of the electromagnetic valve 81 is 100 meters, and the control response time is within 100ms; the gas supply pipe and the gas distribution pipe adopt a three-layer rubber hose with a temperature resistance of up to 1200℃. The response time of the electronic ignition controller 40 is less than 20ms, the remote control distance is 120 meters, and the ignition success rate is more than 80%; the emergency stop switch 41 can quickly cut off the gas in an emergency to ensure operation safety. The box body of the electric control cabinet 40 is 730mm long, 300mm wide, and 400mm high, the electromagnetic valve 81 and the gas distribution valve 82 are installed on the first layer of the electric control cabinet 40, and the electronic ignition controller 40 and the emergency stop switch 41 are installed on the second layer of the electric control cabinet 40.

[0057] As shown in Figure 5 : the angle adjusting mounting seat 321 installed on the top adjusting rod 14 can move horizontally on the top adjusting rod 14 and adjust the angle of the height adjusting hole plate 331 by connecting the two ends of the angle adjusting rod 323 to different hole positions on the upper gear adjusting piece 322 and the lower gear adjusting piece 324; the horizontal adjusting mounting seat 341 installed on the adjusting rod 15 can move horizontally on the adjusting rod 15, and the tail of the horizontal adjusting mounting seat 341 is provided with a hole plate mounting groove 342 for mounting the height adjusting hole plate 331 using a pin shaft; the height adjusting hole plate 331 cooperates with the ten-gear height adjusting gear 332 and the height adjusting pin 333 to install the heat-insulating wind shield 22 of the target burner 20. By adjusting the screw on the angle adjusting rod 323, the heat-insulating wind shield 22 changes the angle, thereby changing the spray angle of the flame nozzle 21, and the adjusted angle is within the range of 0-90°; the height adjusting hole plate 331 can adjust the height within the range of 0-20cm. The heat-insulating wind shield 22 adopts a trapezoidal body, and 28 holes with a diameter of 15mm are evenly punched on the upper ends of the front and rear faces, and 34 holes with a diameter of 15mm are evenly punched on the lower right end, so that the oxygen content is maintained under the influence of reducing wind, which is beneficial to the full combustion of the gas.

[0058] In the embodiment, the moisture sensor 61 and the position sensor 62 monitor the moisture content and growth position of weeds in the field in real time by using a multi-modal perception technology and a sensor array. The gas sensor 71 is a catalytic combustion type sensor or a thermal conductivity type gas sensor, which can detect the concentration of propane and butane. The signal processing unit 50 converts the analog signals detected by the moisture sensor 61, the position sensor 62 and the gas sensor 71 into digital signals and processes them; the concentration threshold setting unit 52 can set the upper limit concentration and the lower limit concentration of the fuel gas, and when the concentration of the fuel gas exceeds the set threshold, the alarm unit 53 issues an alarm and automatically triggers the corresponding gas distribution valve 82 to cut off the fuel gas supply; the instruction control unit 51 automatically adjusts the opening degree of the electromagnetic valve 81 and the gas distribution valve 82 according to the instructions of the signal processing unit 50; the central control system 5 can dynamically adjust according to the real-time changes of the field by using an adaptive algorithm, so as to ensure the accuracy and efficiency of the operation; based on the dynamic response of different weeds and crop growth environments, the central control system 5 can automatically adjust the injection amount and angle of the flame under different field width and weed moisture conditions, realize precise targeted weeding, and also has an environmental feedback function, which can real-time correct the injection parameters.

[0059] The working process of the flame weeding machine with the targeting function provided by the utility model includes equipment debugging in the preparation stage, the angle, height and horizontal position of the flame spray head 21 are manually adjusted through the targeting adjusting device 3, the electromagnetic valve 81 and the distributed fuel gas are started through the central control system 5 or remote starting by a remote control instruction, the flame is ignited by the electronic ignition controller 40 to accurately weed. Under the driving of the power traction mechanism, the equipment moves along the set path, continuously burns the target weeds, and ensures the safety of the surrounding crops. In the operation process, the intelligent identification control system adjusts in real time according to the real-time environmental conditions to realize targeted and accurate weeding. In addition, the operator can cut off the fuel gas at any time through the emergency stop switch 41 to ensure the operation safety. After the operation is completed, the electromagnetic valve 81 is closed and the equipment is cleaned to ensure its good state for next use. The whole process effectively improves the weeding efficiency and accuracy, and meets the needs of modern agriculture.

[0060] The above embodiments are only used to illustrate the technical solutions of the utility model, but not limit them; although the utility model is described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the utility model. The technologies not involved in the utility model can be realized by the prior art.

Claims

1. A flame weeder with a targeting function, characterized by: The flame weeding machine comprises a frame (1) capable of being mounted on a power traction mechanism, an electronic ignition controller (40), a plurality of sets of corresponding target burners (20) and target adjusting devices (3) arranged on the frame (1), the target burners (20) with openings downward and capable of self-limiting a weeding area are mounted on the adjusting ends of the corresponding target adjusting devices (3), and the electronic ignition controller (40) is used for controlling the ignition needle to ignite the gas sprayed by the target burners (20), the target adjusting devices (3) can adjust the height position, horizontal position and spraying angle of the corresponding target burners (20), so as to limit the spacing of the adjacent target burners (20) and limit the flame weeding area of each target burner (20).

2. The flame weeder with targeting function according to claim 1, characterized in that: The target burner (20) is composed of a flame nozzle (21) and a heat-insulating windproof cover (22) with a trapezoidal amplification structure, the flame nozzle (21) is inserted from the positioning mounting hole at the top of the heat-insulating windproof cover (22) and is arranged obliquely forward, and the heat-insulating windproof cover (22) with the bottom flush and the air-permeable holes arranged on the wall is fixedly mounted on the adjusting end of the corresponding target adjusting device (3).

3. The flame weeder with targeting function according to claim 1, characterized in that: The flame weeding machine further comprises a target combustion device (2) composed of the target burners (20) and a gas tank (23), the gas tank (23) arranged on the frame (1) is connected with a gas distribution valve (82) through a gas supply pipe with an electromagnetic valve (81), the gas distribution valve (82) is connected with the flame nozzles (21) in the corresponding target burners (20) through a gas distribution pipe to provide gas, the electromagnetic valve (81) and the gas distribution valve (82) are respectively connected with an instruction control unit (51) of a central control system (5) through lines, and the opening degrees of the electromagnetic valve (81) and the gas distribution valve (82) are respectively controlled by the central control system (5), and the central control system (5) controls the flame spraying amount of the target burners (20) by controlling the gas supply amount.

4. The flame weeder with targeting function according to claim 3, characterized in that: The electromagnetic valve (81) and / or the gas distribution valve (82) are provided with an emergency stop switch (41), the emergency stop switch (41) is arranged on an electric control cabinet (4) or a power traction mechanism, and the emergency stop switch (41) is used for closing the electromagnetic valve (81) and / or the gas distribution valve (82).

5. The flame weeder with targeting function according to claim 1, characterized in that: The flame weeding machine further comprises a weed identification system (6) composed of a moisture sensor (61) and a position sensor (62), the front part of the flame nozzle (21) in each target burner (20) is provided with the moisture sensor (61) and the position sensor (62), the moisture sensor (61) for monitoring the moisture condition of weeds in a field and the position sensor (62) for monitoring the position information of weeds in the field can transmit monitoring signals to a signal processing unit (50) of the central control system (5) in real time.

6. The flame weeder with targeting function according to claim 1, characterized in that: The flame weeding machine further comprises a gas monitoring system (7) composed of gas sensors (71) capable of monitoring the gas concentration and flow state in real time, the gas sensors (71) are arranged in each heat insulation wind shield (22) of the target burner (20) and at each gas distribution valve (82), and the gas sensors (71) capable of monitoring the gas concentration and flow state in real time can transmit monitoring signals to the signal processing unit (50) of the central control system (5) in real time.

7. The flame weeding machine with targeting function according to any one of claims 3, 5 or 6, characterized in that: The central control system (5) comprises a signal processing unit (50) and an instruction control unit (51), the signal processing unit (50) is connected with the water sensor (61) and the position sensor (62) in the weed identification system (6), connected with the gas sensor (71) in the gas monitoring system (7), and connected with the instruction control unit (51).

8. The flame weeder with targeting function according to claim 7, characterized in that: The central control system (5) further comprises a concentration threshold setting unit (52), an alarm unit (53) and an LED display screen (54), the concentration threshold setting unit (52) is connected with the signal processing unit (50) and the LED display screen (54) through lines, the concentration threshold setting unit (52) inputs the pre-set gas concentration threshold into the signal processing unit (50) and displays it through the LED display screen (54); the alarm unit (53) is connected with the signal processing unit (50) and the LED display screen (54) through lines, when the gas concentration received by the signal processing unit (50) is out of the gas concentration threshold for a long time, the signal processing unit (50) transmits an alarm signal to the alarm unit (53) and displays the alarm information on the LED display screen (54); the LED display screen (54) is connected with the signal processing unit (50) through lines to display the information provided by the signal processing unit (50).

9. The flame weeding machine with targeting function according to any one of claims 1-6, characterized in that: The target adjusting device (3) adopts a target automatic adjusting mechanism or a target manual adjusting mechanism (31), an image acquisition device (9) capable of cooperating with the target automatic adjusting mechanism or the target manual adjusting mechanism (31) is installed on the rack (1), the image acquisition device (9) is used to acquire the situation of the field ridge and transmit it to the signal processing unit (50) of the central control system (5), the signal processing unit (50) displays the signal acquired by the image acquisition device (9) on the LED display screen (54), the central control system (5) automatically adjusts the distance of the target burner (20) through the target automatic adjusting mechanism or manually adjusts the distance of the target burner (20) through the target manual adjusting mechanism (31); the target automatic adjusting mechanism adopts a mechanical arm, a combination of a three-dimensional adjusting mechanism and a rotating shaft, or a combination of a height adjusting mechanism (33) configured with a motor, a lateral adjusting mechanism (34) configured with a motor and an angle adjusting mechanism (32) configured with a motor, the joint motors on the mechanical arm can respectively receive the instruction information of the central control system (5) to make lifting, horizontal moving and rotating actions, and the target burner (20) is installed on the output end of the mechanical arm. The corresponding motors on the three-dimensional adjusting mechanism can receive the instruction information of the central control system (5) to make lifting and horizontal moving actions, and the corresponding motor on the rotating shaft can receive the instruction information of the central control system (5) to make rotating action, the targeted burner (20) is installed on the output end of the three-dimensional adjusting mechanism and the three-dimensional adjusting mechanism is installed on the output end of the rotating shaft, or the targeted burner (20) is installed on the output end of the rotating shaft and the rotating shaft is installed on the output end of the three-dimensional adjusting mechanism; the corresponding motors on the height adjusting mechanism (33) can receive the instruction information of the central control system (5) to make lifting action, the corresponding motors on the lateral adjusting mechanism (34) can receive the instruction information of the central control system (5) to make lateral action, the corresponding motors on the angle adjusting mechanism (32) can receive the instruction information of the central control system (5) to make rotating action, the height adjusting mechanism (33) is installed on the output end of the lateral adjusting mechanism (34), the angle adjusting mechanism (32) is installed on the output end of the height adjusting mechanism (33) and the targeted burner (20) is installed on the output end of the angle adjusting mechanism (32), or the height adjusting mechanism (33) is installed on the output end of the angle adjusting mechanism (32), the lateral adjusting mechanism (34) is installed on the output end of the height adjusting mechanism (33) and the targeted burner (20) is installed on the output end of the lateral adjusting mechanism (34), or the angle adjusting mechanism (32) is installed on the output end of the lateral adjusting mechanism (34), the height adjusting mechanism (33) is installed on the output end of the angle adjusting mechanism (32) and the targeted burner (20) is installed on the output end of the height adjusting mechanism (33), or the angle adjusting mechanism (32) is installed on the output end of the height adjusting mechanism (33), the lateral adjusting mechanism (34) is installed on the output end of the angle adjusting mechanism (32) and the targeted burner (20) is installed on the output end of the lateral adjusting mechanism (34), or the lateral adjusting mechanism (34) is installed on the output end of the height adjusting mechanism (33), the angle adjusting mechanism (32) is installed on the output end of the lateral adjusting mechanism (34) and the targeted burner (20) is installed on the output end of the angle adjusting mechanism (32), or the lateral adjusting mechanism (34) is installed on the output end of the angle adjusting mechanism (32), the height adjusting mechanism (33) is installed on the output end of the lateral adjusting mechanism (34) and the targeted burner (20) is installed on the output end of the height adjusting mechanism (33);The targeting manual adjustment mechanism (31) comprises an angle adjustment mechanism (32), a height adjustment mechanism (33) and a lateral adjustment mechanism (34), the angle adjustment mechanism (32) comprises an angle adjustment mounting base (321) mounted on the top mounting adjusting rod (14) of the rack (1), an upper gear adjustment piece (322) located on the angle adjustment mounting base (321), an angle adjustment pull rod (323), and a lower gear adjustment piece (324) located on the height adjustment hole plate (331), the angle adjustment mounting base (321) can move laterally on the top mounting adjusting rod (14), and the two ends of the angle adjustment pull rod (323) are connected with different hole positions on the upper gear adjustment piece (322) and different hole positions on the lower gear adjustment piece (324) to adjust the angle of the height adjustment hole plate (331), the lateral adjustment mechanism (34) comprises a lateral adjustment mounting base (341) mounted on the bottom mounting adjusting rod (15) of the rack (1), the lateral adjustment mounting base (341) can move laterally on the mounting adjusting rod (15), and the tail of the lateral adjustment mounting base (341) is provided with a hole plate mounting groove (342) for mounting the height adjustment hole plate (331) by using a pin shaft, and the height adjustment mechanism (33) comprises a height adjustment hole plate (331) provided with height adjustment gears (332), the height adjustment hole plate (331) is mounted with the heat-proof wind shield (22) of the targeted combustor (20) by using the cooperation of the height adjustment pin (333) and the height adjustment gears (332).

10. The flame weeding machine with targeting function according to any one of claims 1-6, characterized in that: The rack (1) comprises a base (10), side plates (11), cabinet support frames (12), tank fixing frames (13), top mounting adjusting rods (14), the space above the base (10) is divided into several areas by the plurality of side plates (11) arranged on the base (10), the middle area is used for mounting a three-point suspension mechanism (16), the top of the cabinet support frame (12) mounted on the adjacent side plates (11) is used for mounting an electric control cabinet (4), the areas on both sides are respectively arranged with the tank fixing frames (13) for placing gas tanks (23), the top end of the side plate (11) is used for suspending and fixing the top mounting adjusting rod (14), and the top mounting adjusting rod (14) is used for mounting a target automatic adjusting mechanism in the target adjusting device (3), and an image acquisition device (9) cooperating with the target adjusting device (3) is mounted on the top mounting adjusting rod (14) or the electric control cabinet (4); the base (10) is further provided with a suspended and fixed bottom mounting adjusting rod (15), the bottom mounting adjusting rod (15) and the top mounting adjusting rod (14) are used for mounting a target manual adjusting mechanism in the target adjusting device (3) in cooperation with each other, and the image acquisition device (9) cooperating with the target adjusting device (3) is mounted on the top mounting adjusting rod (14) or the electric control cabinet (4).

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