Grain loss detection method, system, and agricultural machinery

Abstract

The present invention belongs to the field of agricultural machinery, and more particularly relates to a grain loss detection method, system, and agricultural machinery. This method facilitates the setting of different power supply combinations by adding pins to a grain loss sensor. These different power supply combinations allow for rapid determination of the location of the grain loss sensor, thereby enabling the identification of the source of data without manual inspection. Furthermore, simply adding two pins to the grain loss sensor does not irreversibly impact the structure, conserving resources and avoiding waste. Furthermore, adding two pins requires minimal effort and simplifies the process.

Description

Technical Field

[0001] The present invention belongs to the field of agricultural machinery, and in particular relates to a grain loss detection method, system, and agricultural machinery. Background Art

[0002] Currently, intelligent harvesters are equipped with loss sensors for detecting grain loss. These sensors are divided into two types based on their function: cleaning loss sensors and entrainment loss sensors. Cleaning loss sensors can be divided into left and right cleaning loss sensors based on their installation location, and entrainment loss sensors can be divided into left and right entrainment loss sensors based on their installation location. The core detection circuit principles of the four sensors mentioned above are the same, and the cleaning loss sensors and entrainment loss sensors have the same structure. However, since the structures of these sensors are identical, it is impossible to determine the accuracy based on appearance. Furthermore, during the actual installation and statistical analysis of grain loss, manual data classification of different sensors is inefficient and prone to errors. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a grain loss detection method, system, and agricultural machinery.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: A method for detecting grain loss, comprising:

[0005] Increase the pins of each grain loss sensor, combine the original pins of each grain loss sensor, and set the power supply combination mode corresponding to different grain loss sensors; when any sensor is powered for the first time, determine the message ID corresponding to the grain loss sensor by identifying the power supply combination mode of the pins of the grain loss sensor, and fix the message ID in storage;

[0006] When the input pin of any grain loss sensor chip collects the grain loss pulse voltage signal, the collected pulse voltage signal is counted, and the counting result is assigned to the storage location corresponding to the solidified message ID.

[0007] The present invention has the following beneficial effects: by adding pins to the grain loss sensor, it is easier to set different types of power supply combinations. Using different power supply combinations, the location information of the grain loss sensor can be quickly determined, thereby achieving the purpose of determining which grain loss sensor the data originated from without manual inspection. By solidifying the sensor ID during the initial power supply, the risk of abnormal wiring harness aging and damage can be minimized. Furthermore, simply adding two pins to the grain loss sensor does not cause irreversible changes to the structure, while saving resources and avoiding waste. Furthermore, adding two pins requires less work and the processing is simple.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Further, when the number of the grain loss sensors is four, the four grain loss sensors are respectively arranged on the left rear side of the harvester threshing drum, the right rear side of the threshing drum, the left side of the tail screen rear baffle, the right side of the tail screen rear baffle, the left side of the tail screen rear baffle, and the right side of the tail screen rear baffle.

[0010] Furthermore, when there are two grain loss sensors, the two grain loss sensors are respectively arranged at the left rear side and the right rear side of the threshing drum of the harvester;

[0011] Or they are respectively arranged on the left side of the rear baffle of the harvester tail screen and the right side of the rear baffle of the tail screen.

[0012] Furthermore, by identifying the power supply combination mode of the pins of the grain loss sensor, the process of determining the message ID corresponding to the grain loss sensor is as follows:

[0013] By identifying the power supply combination mode of the pins of the grain loss sensor, searching for the message ID corresponding to the power supply combination mode in a preset mapping table, and determining the message ID as the message ID corresponding to the grain loss sensor.

[0014] Another technical solution of the present invention to solve the above technical problem is as follows: A grain loss detection system, comprising:

[0015] The setting module is used to: add pins to each grain loss sensor, and set the power supply combination mode corresponding to different grain loss sensors in combination with the original pins of each grain loss sensor; when any sensor is powered for the first time, the power supply combination mode of the pins of the grain loss sensor is identified to determine the message ID corresponding to the grain loss sensor, and the message ID is fixed and stored;

[0016] The detection module is used for: when the input pin of any grain loss sensor chip collects the grain loss pulse voltage signal, counting the collected pulse voltage signal and assigning the counting result to the storage location corresponding to the solidified message ID.

[0017] The present invention has the following beneficial effects: by adding pins to the grain loss sensor, it is easier to set different types of power supply combinations. Using different power supply combinations, the location information of the grain loss sensor can be quickly determined, thereby achieving the purpose of determining which grain loss sensor the data originated from without manual inspection. Solidifying the sensor ID by initial power supply minimizes the risk of abnormal wiring harness aging and damage. Furthermore, simply adding two pins to the grain loss sensor does not introduce irreversible changes to the structure, while saving resources and avoiding waste. Furthermore, adding two pins requires less work and simplifies the processing.

[0018] Further, when the number of the grain loss sensors is four, the four grain loss sensors are respectively arranged on the left rear side of the harvester threshing drum, the right rear side of the threshing drum, the left side of the tail screen rear baffle, the right side of the tail screen rear baffle, the left side of the tail screen rear baffle, and the right side of the tail screen rear baffle.

[0019] Furthermore, when there are two grain loss sensors, the two grain loss sensors are respectively arranged at the left rear side and the right rear side of the threshing drum of the harvester;

[0020] Or they are respectively arranged on the left side of the rear baffle of the harvester tail screen and the right side of the rear baffle of the tail screen.

[0021] Furthermore, by identifying the power supply combination mode of the pins of the grain loss sensor, the process of determining the message ID corresponding to the grain loss sensor is as follows:

[0022] By identifying the power supply combination mode of the pins of the grain loss sensor, searching for the message ID corresponding to the power supply combination mode in a preset mapping table, and determining the message ID as the message ID corresponding to the grain loss sensor.

[0023] Another technical solution of the present invention to solve the above technical problem is as follows: an agricultural machine includes a grain loss detection system as described in any one of the above items.

[0024] The present invention has the following beneficial effects: by adding pins to the grain loss sensor, it is easier to set different types of power supply combinations. Using different power supply combinations, the location information of the grain loss sensor can be quickly determined, thereby achieving the purpose of determining which grain loss sensor the data originated from without manual inspection. By solidifying the sensor ID during the initial power supply, the risk of abnormal wiring harness aging and damage can be minimized. Furthermore, simply adding two pins to the grain loss sensor does not cause irreversible changes to the structure, while saving resources and avoiding waste. Furthermore, adding two pins requires less work and the processing is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of a process flow diagram of an embodiment of a method for detecting grain loss according to the present invention;

[0026] Figure 2 A structural framework diagram of a grain loss detection system embodiment of the present invention is provided. DETAILED DESCRIPTION

[0027] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0028] like Figure 1 As shown, a method for detecting grain loss comprises:

[0029] Increase the pins of each grain loss sensor, combine the original pins of each grain loss sensor, and set the power supply combination mode corresponding to different grain loss sensors; when any grain loss sensor collects grain loss data, the data record is collected and transmitted to the storage location corresponding to the solidified message ID of the grain loss sensor through a variable a.

[0030] When the input pin of any grain loss sensor chip collects a grain loss pulse voltage signal, it is counted and assigned to a storage location corresponding to the message ID solidified by the setting module 100, such as variable a.

[0031] In some possible implementations, adding pins to the seed loss sensor facilitates setting different power supply combinations. Using these different power supply combinations, the location of the seed loss sensor can be quickly determined, eliminating the need for manual inspection to identify the source of the data. Solidifying the sensor ID during initial power supply minimizes the risk of abnormal wiring harness damage. Furthermore, simply adding two pins to the seed loss sensor does not irreversibly impact the structure, conserving resources and avoiding waste. Furthermore, adding two pins requires minimal effort and simplifies the process.

[0032] It should be noted that the pins need to be added to the internal chip of the grain loss sensor, and the power supply mode of the pins is collected through high and low level identification.

[0033] There are two types of grain loss sensors: one is the cleaning grain loss sensor, and the other is the entrained grain loss sensor. Usually, only one or two of each type of sensor are required.

[0034] Example 1: The present invention aims to solve the problem that existing CAN bus loss sensors need to be strictly distinguished in multiple different installation positions on the same harvester to accurately feedback the number of lost grains detected at the current position. The solution simplifies the tedious production process, prevents errors, and improves assembly efficiency.

[0035] Two pins are added to each seed loss sensor connected to the existing CAN bus, and four different power supply combinations are used to distinguish seed loss sensors in different locations. The specific definitions and allocations are shown in Table 1 below:

[0036] Table 1

[0037] Sensor Category A1 pin status A2 pin status Left side cleaning loss sensor 24V 0V Right side cleaning loss sensor 0V 24V Left side entrainment loss sensing 24V 24V Right side entrainment loss sensing 0V 0V

[0038] The sensor CPU sends the currently detected cumulative number of lost grains to different message IDs, or sends the detected number of lost grains to different message IDs in real time, depending on the power supply mode of pins A1 and A2. The number of lost grains is obtained through the pressure change signal of the sensor piezoelectric ceramic. When the input circuit voltage signal reaches a certain amplitude, it is judged as a grain impact and counted. The distribution is shown in Table 2 below:

[0039] Table 2

[0040]

[0041] Preferably, in any of the above embodiments, when the number of the grain loss sensors is four, the four grain loss sensors are respectively arranged on the left rear side of the harvester threshing drum, the right rear side of the threshing drum, the left side of the tail screen rear baffle, the right side of the tail screen rear baffle, the left side of the tail screen rear baffle, and the right side of the tail screen rear baffle.

[0042] Preferably, in any of the above embodiments, when there are two grain loss sensors, the two grain loss sensors are respectively arranged on the left rear side and the right rear side of the threshing drum of the harvester;

[0043] Or they are respectively arranged on the left side of the rear baffle of the harvester tail screen and the right side of the rear baffle of the tail screen.

[0044] Preferably, in any of the above embodiments, the process of determining the message ID corresponding to the grain loss sensor by identifying the power supply combination of the pins of the grain loss sensor is:

[0045] By identifying the power supply combination mode of the pins of the grain loss sensor, searching for the message ID corresponding to the power supply combination mode in a preset mapping table, and determining the message ID as the message ID corresponding to the grain loss sensor.

[0046] like Figure 2 As shown, a grain loss detection system comprises:

[0047] The setting module 100 is used for: the setting module is used for: adding the pins of each grain loss sensor, combining the original pins of each grain loss sensor, and setting the power supply combination mode corresponding to different grain loss sensors; when any grain loss sensor collects grain loss data, the data record is collected and transmitted to the storage location corresponding to the solidified message ID of the grain loss sensor through a variable a.

[0048] The detection module 200 is used to: when the input pin of any grain loss sensor chip collects a grain loss pulse voltage signal, count it and assign it to the storage location corresponding to the message ID solidified by the setting module, such as variable a.

[0049] In some possible implementations, adding pins to the seed loss sensor facilitates setting different power supply combinations. Using these different power supply combinations, the location of the seed loss sensor can be quickly determined, eliminating the need for manual inspection to identify the source of the data. Solidifying the sensor ID during initial power supply minimizes the risk of abnormal wiring harness damage. Furthermore, simply adding two pins to the seed loss sensor does not irreversibly impact the structure, conserving resources and avoiding waste. Furthermore, adding two pins requires minimal effort and simplifies the process.

[0050] Preferably, in any of the above embodiments, when the number of the grain loss sensors is four, the four grain loss sensors are respectively arranged on the left rear side of the harvester threshing drum, the right rear side of the threshing drum, the left side of the tail screen rear baffle, and the right side of the tail screen rear baffle.

[0051] Preferably, in any of the above embodiments, when there are two grain loss sensors, the two grain loss sensors are respectively arranged on the left rear side and the right rear side of the threshing drum of the harvester;

[0052] Or they are respectively arranged on the left side of the rear baffle of the harvester tail screen and the right side of the rear baffle of the tail screen.

[0053] Preferably, in any of the above embodiments, the process of determining the message ID corresponding to the grain loss sensor by identifying the power supply combination of the pins of the grain loss sensor is:

[0054] By identifying the power supply combination mode of the pins of the grain loss sensor, searching for the message ID corresponding to the power supply combination mode in a preset mapping table, and determining the message ID as the message ID corresponding to the grain loss sensor.

[0055] Another technical solution of the present invention to solve the above technical problem is as follows: an agricultural machine includes a grain loss detection system as described in any one of the above items.

[0056] In some possible implementations, adding pins to the seed loss sensor facilitates setting different power supply combinations. Using these different power supply combinations, the location of the seed loss sensor can be quickly determined, eliminating the need for manual inspection to identify the source of data. Furthermore, adding only two pins to the seed loss sensor does not irreversibly alter the structure, conserving resources and avoiding waste. Furthermore, adding two pins requires minimal effort and simplifies the process.

[0057] The reader should understand that in the description of this specification, reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0058] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method can be implemented in other ways. For example, the method embodiments described above are merely illustrative. For example, the division of steps is merely a logical function division. In actual implementation, other division methods may be used. For example, multiple steps may be combined or integrated into another step, or some features may be ignored or not performed.

[0059] If the above method is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, and other media that can store program code.

[0060] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A method for detecting grain loss, characterized in that: include: Increase the pins of each grain loss sensor, combine the original pins of each grain loss sensor, and set the power supply combination mode corresponding to different grain loss sensors; when any sensor is powered for the first time, determine the message ID corresponding to the grain loss sensor by identifying the power supply combination mode of the pins of the grain loss sensor, and fix the message ID in storage; When the input pin of any grain loss sensor chip collects the grain loss pulse voltage signal, the collected pulse voltage signal is counted and the counting result is assigned to the storage location corresponding to the solidified message ID; When there are four grain loss sensors, the four grain loss sensors are respectively arranged on the left rear side of the harvester threshing drum, the right rear side of the threshing drum, the left side of the tail screen rear baffle, and the right side of the tail screen rear baffle; When there are two grain loss sensors, the two grain loss sensors are respectively arranged on the left rear side and the right rear side of the threshing drum of the harvester, or respectively arranged on the left side and the right side of the rear baffle of the tail screen of the harvester.

2. A method for detecting grain loss according to claim 1, characterized in that: By identifying the power supply combination of the pins of the grain loss sensor, the process of determining the message ID corresponding to the grain loss sensor is as follows: By identifying the power supply combination mode of the pins of the grain loss sensor, searching for the message ID corresponding to the power supply combination mode in a preset mapping table, and determining the message ID as the message ID corresponding to the grain loss sensor.

3. A grain loss detection system, characterized in that: include: The setting module is used to: add pins to each grain loss sensor, and set the power supply combination mode corresponding to different grain loss sensors in combination with the original pins of each grain loss sensor; when any sensor is powered for the first time, the power supply combination mode of the pins of the grain loss sensor is identified to determine the message ID corresponding to the grain loss sensor, and the message ID is fixed and stored; The detection module is used to: when the input pin of any grain loss sensor chip collects a grain loss pulse voltage signal, count the collected pulse voltage signal and assign the counting result to the storage location corresponding to the solidified message ID; When there are four grain loss sensors, the four grain loss sensors are respectively arranged on the left rear side of the harvester threshing drum, the right rear side of the threshing drum, the left side of the tail screen rear baffle, and the right side of the tail screen rear baffle; When there are two grain loss sensors, the two grain loss sensors are respectively arranged on the left rear side and the right rear side of the threshing drum of the harvester, or respectively arranged on the left side and the right side of the rear baffle of the tail screen of the harvester.

4. A grain loss detection system according to claim 3, characterized in that: By identifying the power supply combination of the pins of the grain loss sensor, the process of determining the message ID corresponding to the grain loss sensor is as follows: By identifying the power supply combination mode of the pins of the grain loss sensor, searching for the message ID corresponding to the power supply combination mode in a preset mapping table, and determining the message ID as the message ID corresponding to the grain loss sensor.

5. An agricultural machine, characterized in that: The invention comprises a grain loss detection system as claimed in claim 3 or 4.

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