Input sensing device for an agricultural machine

Abstract

The present invention relates to the field of precision agriculture and, more specifically, to a sensor for monitoring the flow of inputs used in agricultural machines and implements. The invention relates to an input sensing device for an agricultural machine, wherein the machine comprises an input transport duct, wherein the device comprises: a housing, wherein the housing comprises a resonance wall; a mounting bracket, wherein the mounting bracket is removably attachable to the housing; a transducer; and an electronic board, wherein the electronic board comprises a processing unit and a power supply; wherein the input sensing device is arranged externally to the input transport duct, wherein the resonance wall is in contact with the input transport duct.

Description

"Input sensing device for an agricultural machine" FIELD OF THE INVENTION

[0001] The present invention relates to the field of precision agriculture and, more specifically, to a sensor for monitoring the flow of inputs used in agricultural machinery and implements. The present invention relates even more specifically to sensors for monitoring the flow of inputs applied in distributors of fertilizers, seeds, and other agricultural inputs containing particulate matter. BACKGROUND OF THE INVENTION

[0002] Machines that distribute fertilizers, seeds, and other agricultural inputs in particulate form are extremely useful in the agricultural sector. Such equipment aims to increasingly optimize the use and distribution of inputs, avoiding waste and application errors, thus ensuring increasingly productive and profitable crops.

[0003] The raw materials stored in a storage tank are conveyed through a plurality of transport pipelines. The pipelines then direct the raw materials to the final distribution system, where they will be dispersed to a designated location.

[0004] There is a market demand for equipment that can assist in and verify the transport of supplies to the final distribution system. Therefore, the need for sensors that can monitor the operation was identified, where the information collected by these sensors will be sent to the operator of the distribution machine. Thus, the operator will have access to real-time information regarding the flow of supplies, blockages in pipelines, or variations in flow in each pipeline individually, or even variations between different pipelines.

[0005] Known input sensors in the prior art have some limitations, such as the use of power and data transmission wires, which restrict sensor placement, not only due to the length of wiring / cabling used but also due to the machine's operation and movement. This also makes sensor installation and maintenance more difficult.

[0006] Another drawback is the problems caused by frequent exposure to rain or moisture, which can seep into the sensors and damage the electronic components.

[0007] The prior art document US9565798B2 presents a wireless flow monitoring system for pneumatic seeders, in which the input transport duct is cut in two parts for sensor coupling. The need to cut the input transport duct in two parts for sensor coupling in series with the particulate material flow is another drawback found in known sensors.

[0008] Therefore, there is a market need for a flow sensor for raw materials that is easy to install and maintain, requires no cables or wires, does not require cutting transport ducts, and offers high precision. DESCRIPTION OF THE INVENTION

[0009] Thus, the present invention presents an input sensing device for an agricultural machine that aims to overcome all inconveniences and limitations found in the prior art, wherein the agricultural machine comprises an input transport duct; and the input sensing device comprises a housing, wherein the housing comprises a resonance wall; a mounting bracket, wherein the mounting bracket is removablely attachable to the housing; a transducer; and an electronic board, wherein the electronic board comprises a processing unit and a power source; wherein the input sensing device is disposed externally to the input transport duct, wherein the resonance wall is in contact with the input transport duct.

[0010] According to further or alternative embodiments of the present invention, the following features, and their possible variants, may also be present, alone or in combination: - the housing comprises a base and a casing, the base comprising the resonance wall; - the base of the housing is hermetically fixed to the casing; - the casing is additionally fitted with a membrane; - the accommodation being in a single unit; - the mounting bracket shall additionally comprise a fastening means; - the fastening means comprise an opening and a locking means; - the housing shall additionally include a recess coinciding with the opening of the mounting bracket; - the locking method for the housing can be any of the following: clamps, clips, mechanical threads, clips, straps or adhesive; - the fastening means shall comprise a locking means embedded among clamps, clips, mechanical threads, clips, straps or adhesive; - the mounting bracket shall additionally comprise at least one mounting tab; - the accommodation must also include cloves; - the housing is fixed to the input transport pipeline by means of a fixing bracket and a support extension, wherein the fixing bracket and the support extension enclose the input transport pipeline; - the mounting bracket and the support extension are joined by means of a screw, clip, or lock; and, optionally, the mounting bracket and the support extension are joined by an articulated joint at one end; - the support element being a half-round molding; - the housing shall comprise a battery stop and a plate stop; - The electronic board shall additionally comprise a radio frequency unit.

[0011] Furthermore, the present invention provides an input sensing device for an agricultural machine, comprising a housing, wherein the housing comprises a resonance wall; and the housing further comprising an upper wall; and side walls around the entire perimeter of the housing; and a mounting bracket, wherein the mounting bracket is removablely attachable to the housing; a transducer and an electronic board, wherein the electronic board comprises a processing unit and a power source; wherein the side walls of the housing have a larger outer perimeter at their lower end near the resonance wall of the housing and a smaller outer perimeter at their upper end near the upper wall; and wherein the mounting bracket comprises side walls, the side walls of the mounting bracket have a smaller inner perimeter at their upper end and a larger inner perimeter at their lower end;The input sensing device is positioned externally to the input transport duct, with the resonance wall in contact with the input transport duct.

[0012] In alternative or additional embodiments of the present invention, the following features of the agricultural machinery input sensing device are present: - the side walls extend around the entire perimeter of the mounting bracket; - the mounting bracket fits into the housing by interference fit; or the mounting bracket is coupled to the housing by a locking mechanism; - the larger outer perimeter of the housing must be greater than or equal to the smaller inner perimeter of the side walls of the mounting bracket; - the accommodation being in a single unit; - The electronic board shall additionally comprise a radio frequency unit.

[0013] These and other features, aspects, and advantages of the present invention will be better understood with reference to the appended description and claims. The accompanying drawings, which are incorporated into and form a part of this descriptive report, illustrate exemplary embodiments and, together with the description, serve to explain the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The objectives, advantages, and technical and functional improvements of the present invention will be better understood from the following description of particular embodiments, which refer to the accompanying figures.

[0015] Figure 1 shows a front perspective view of the input sensing device coupled to the input transport duct, according to an embodiment of the present invention.

[0016] Figure 2 shows a front perspective view of the input sensing device, according to an embodiment of the present invention.

[0017] Figure 3 shows a rear perspective view of the input sensing device, according to an embodiment of the present invention.

[0018] Figure 4A shows an internal perspective view of the base of the input sensing device housing, according to an embodiment of the present invention.

[0019] Figure 4B shows an internal perspective view of the base of the input sensing device housing in which the transducer is located, according to an embodiment of the present invention.

[0020] Figure 5A shows a front perspective view of the electronic board of the input sensing device, according to an embodiment of the present invention.

[0021] Figure 5B shows a rear perspective view of the electronic board of the input sensing device, according to an embodiment of the present invention.

[0022] Figure 6 shows an exploded view of the input sensing device, according to an embodiment of the present invention.

[0023] Figure 7 shows an internal perspective view of the housing of the input sensing device, according to an embodiment of the present invention.

[0024] Figure 8 shows a front perspective view of the mounting bracket for the input sensing device, according to an embodiment of the present invention.

[0025] Figure 9 shows a front perspective view of the mounting bracket with locking means for the input sensing device, according to an embodiment of the present invention.

[0026] Figure 10 shows a side view of the input sensing device, according to an embodiment of the present invention.

[0027] Figure 11A shows a front perspective view of the support complement of the input sensing device, according to an embodiment of the present invention.

[0028] Figure 11 B shows a rear perspective view of the support complement of the input sensing device, according to an embodiment of the present invention.

[0029] Figure 12 shows a cross-sectional view of the input sensing device, according to another embodiment of the present invention. DESCRIPTION OF THE INVENTION'S EFFECTIVENESS

[0030] The invention is now described with regard to its particular embodiments, with reference to the accompanying figures. In the figures and description that follow, equal or corresponding parts are marked with the same reference numbers.

[0031] The figures are schematic and their dimensions and proportions are illustrative, as they are intended only to describe the invention in a way that facilitates understanding and do not impose any limitations beyond those defined by the appended claims.

[0032] It should be recognized that the different teachings of the achievements discussed below can be employed separately or in any suitable combination to produce the same technical effects.

[0033] The present invention relates to a sensing device for inputs 10, in particular solid particulates, for an agricultural input distribution machine comprising an input transport duct 20. The solid particulate materials may be one of chemical fertilizers, seeds, fine grains, granules, etc.

[0034] Figure 1 illustrates an input sensing device 10 according to the present invention comprising a housing 11 and a mounting bracket 13, disposed externally to an input transport duct 20. The housing 11 of the input sensing device 10 of the present invention comprises a resonance wall 12, illustrated in Figure 3.

[0035] In a preferred embodiment of the present invention, the housing 11 comprises a casing 111 and a base 112, as shown in Figure 3. And the resonance wall 12 is disposed in the base 112.

[0036] Alternatively, the housing 11 of the input sensing device 10 can be formed in a single piece, either by welding, molding, forming, or other means.

[0037] Figure 4A illustrates the base 112 of the housing 11 of the input sensing device 10 of the present invention, which further comprises a transducer 30 positioned on the resonance wall 12. The transducer 30 is preferably of the piezoelectric type and, as illustrated in Figure 4B, is located in a circular recess in the central region of the inner part of the base 112 of the housing 11, which delimits the installation region of the transducer 30 with greater precision during the manufacture of the input sensing device 10.

[0038] The inner part of base 112 is equipped with a circuit board cradle 124, as shown in Figures 4A and 4B, which surrounds the entire perimeter of base 112 and extends longitudinally from base 112 to accommodate an electronic board 31.

[0039] In a preferred embodiment of the present invention, as shown in Figure 5A, the electronic board 31 comprises a processing unit 33 and a power source 34.

[0040] The power source 34 is preferably a lithium battery, however, it can be any of the following: electrochemical cells, alkaline batteries, dry batteries, manganese dioxide batteries, among others. The power source 34, preferably two AA batteries, is accommodated on the back of the electronic board 31 of the input sensing device 10 by fitting with light pressure, on battery contacts 35 that are soldered directly to the electronic board 31, as shown in Figure 5B.

[0041] Additionally, the use of a battery as a power source 34 allows the input sensing device 10 to be a wireless technology by using a radio frequency unit 32, ensuring cleaner installations without limitations due to power cabling.

[0042] The electronic board 31 further comprises at least one electric spring contact 36 that makes contact with the transducer 30. The electronic board 31 is preferably fixed to the base 112 by means of screws 37, however, other means of fixing may be used provided that the objectives of the invention are achieved.

[0043] According to the preferred embodiment of the present invention, the transducer 30 receives the mechanical impulses from the agricultural inputs being transported in the input transport duct 20 and transforms them into electrical impulses. The electrical impulses, in turn, are read by the electric spring contact 36 and then processed by the processing unit 33 on the electronic board 31. The information processed by the processing unit 33 is sent to a human-machine interface (not shown), where the user will easily perceive all the information indicating the flow situations or problems of each input transport duct 20. The human-machine interface can be any of the following: monitor, smartphone, tablet, on-board computer, among others.

[0044] Furthermore, according to the preferred embodiment of the present invention, the base 112 of the housing 11 is hermetically fixed to the casing 111, so as to protect the internal components from risk factors such as dust accumulation, moisture, corrosion by chemical elements, etc.

[0045] The hermetic fastening method is achieved through a sealing gasket 14, illustrated in Figure 6, which is made of flexible material, silicone for example, positioned between the inner wall of the base 112 facing the plate cradle 124 and the interior of the housing 111, to improve and optimize the sealing of the internal components of the input sensing device 10, thus preventing malfunction and wear due to corrosion, oxidation, rust and other deterioration processes of the internal components due to weathering, contact with chemical elements and fluids, etc.

[0046] In a preferred embodiment of the present invention, the electronic board 31 further comprises a signal indicator element 114 which may be a light-emitting diode (LED), as illustrated in Figure 2, or any other signaling device, visual or audible, such as a buzzer or a loudspeaker, to indicate the status of the input sensing device 10 to the user. The signal indicator element 114 of Figure 2 is installed in a hole in the housing 111 of the input sensing device 10 with sufficient mechanical interference to ensure tightness.

[0047] The base 112 is fixed to the housing 111 preferably by means of screws 38; however, other means of fixation are foreseen and incorporated into the scope of the present invention. Figure 7 shows the housing 111 of the housing 11 additionally equipped with a battery stop 116 located on the inner wall of the housing 111 and extending perpendicularly and longitudinally in at least a part of the interior of the housing 111. The battery stop 116 helps to keep the contact of the power source 34 always active, even in situations of vibration and / or shock, ensuring that there is minimal mechanical clearance for movement of the electronic board 31 and the power source 34, and ensuring that the operation of the input sensing device 10 is not impaired in the various situations in which the agricultural machine works.

[0048] Additionally, housing 111 is equipped with a plate stop 117, as shown in Figure 7, located on the inner wall of housing 111 and extending perpendicularly and longitudinally in a central part of the interior of housing 111, assisting in the correct positioning of the electronic board 31 and thus preventing the electronic board 31 from moving within the housing in situations of vibration and / or shock during the operation of the agricultural machine.

[0049] The mounting bracket 13 of the input sensing device 10 of the present invention is removablely attachable to the housing 11, so that the same housing 11 can be easily coupled and / or uncoupled numerous times from a mounting bracket 13. This allows a single housing 11 to be used in multiple installations. The mounting bracket 13 can be removed from the input sensing device 10 by pulling it in the opposite direction to the attachment.

[0050] Preferably, the mounting bracket 13 is fitted with a snap-fit ​​locking mechanism into the housing 11 of the input sensing device 10, enclosing the input sensing device 10. A practical application of this embodiment is when, for example, the mounting bracket 13 breaks. In this case, simply attach the same housing 11 to a new mounting bracket 13 and install it in the input transport duct 20.

[0051] The mounting bracket 13 coupled to the housing 11 helps to provide an additional seal between the housing 111 and the base 112 against moisture, dust and other harmful chemicals, as well as providing acoustic insulation for the input sensing device 10.

[0052] In one embodiment of the present invention, the mounting bracket 13 may further comprise a fastening means 131, as shown in Figure 8. The fastening means 131 being a region of the mounting bracket 13 comprising an opening 132 and a locking means 133. More specifically, as shown in Figures 9 and 10, the fastening means 131 comprises two pairs of openings 132 and a pair of locking means 133 for positioning and securing the input sensing device 10 externally on the input transport duct 20.

[0053] In another alternative embodiment, as illustrated in Figure 3, the housing 11 additionally comprises a recess 115, wherein the recess 115 coincides with the opening 132 of the fixing support 13. The recess 115 coinciding with the opening 132 prevents the locking means 133 from creating a space between the input transport duct 20 and the resonance wall 12.

[0054] Specifically, this embodiment allows the resonance wall 12 to be firmly pressed against the outer wall of the input transport duct 20, so as to ensure stable and uniform contact between the outer wall of the input transport duct 20 and the resonance wall 12, thus promoting precise input sensing.

[0055] The locking method 133 of the fixing support 13 can be any of the following: clamps, clips, mechanical threads, clips, straps, adhesives, among others.

[0056] In a preferred embodiment of the present invention, the locking means 133 are metal clamps installed on the fixing support 13, through two lateral openings 132 for each clamp 133. Then, the clamps 133 encircle the input transport duct 20 and are closed on themselves by applying torque to the closing screws 38. This ensures good fixation and good contact of the input sensing device 10 against the outer wall of the input transport ducts 20, such that the input sensing device 10 does not move either longitudinally or transversely in relation to the input transport duct 20. That is, the input sensing device 10 is fully fixed against the outer wall of the input transport duct 20.

[0057] This preferred embodiment is particularly advantageous because it allows the user to easily install or uninstall the input sensing device 10 externally to the agricultural machine's input transport duct 20 without the need to cut the input transport duct 20. This ensures faster and more economical installation.

[0058] And, in case of damage during the installation or operation of the input sensing device over time, it ensures faster, more efficient and economical maintenance, requiring only the replacement of an inexpensive part, instead of replacing the entire input sensing device 10.

[0059] Furthermore, another advantage of the present invention relates to the fact that the housing 11 provides airtightness and acoustic insulation to the input sensing device 10 while also providing easier access to the electronic components of the input sensing device 10 for eventual replacements and / or maintenance.

[0060] This ease of access to the electronic components of the input sensing device 10 allows it to remain in use by replacing it with a new power source 34. In practical terms, this means significant savings for the farmer who currently uses wireless sensing devices that are only functional for the duration of the internal power source's lifespan.

[0061] In an alternative embodiment of the present invention, a rubber piece (not shown) may be used on the surface not covered by the input sensing device 10 between the locking means 133 (clamps) and the input transport duct 20, to minimize possible damage to the input transport duct 20 when the locking means 133 is tightened.

[0062] The rubber part can also absorb dimensional variations in the input transport ducts 20 due to applied pressure and temperature variations. And, ensure good fixation of the input sensing device 10 in a wide variety of situations.

[0063] In an alternative embodiment of the present invention (not shown), the fastening means 131 of the fastening bracket 13 comprises an embedded locking means 133 among clamps, clips, mechanical threads, clips, straps, adhesives, among others. This further facilitates and simplifies assembly as it is a single piece; that is, this embodiment eliminates the need to fit parts together, which reduces the risk of parts being loosened or lost during installation or maintenance.

[0064] In another alternative embodiment (not shown), the mounting bracket 13 comprises at least one mounting tab. The at least one mounting tab may be semi-rigid or have some flexibility for locking the input sensing device 10 in the input transport duct 20. This embodiment is advantageous because the mounting tab prevents the locking means 133 from coming into direct contact with the input transport duct 20, thus avoiding possible wear and / or cuts in the input transport duct 20.

[0065] In another alternative embodiment of the present invention, the housing 11 may comprise studs (not shown) located on the outer wall of the base 112 to assist in securing the input sensing device 10 to the input transport duct 20.

[0066] In another alternative embodiment of the present invention, it is possible to install separating foams (not shown). The separating foams are particularly advantageous in cases where the input transport ducts 20 overlap, touching each other. This can cause the transmission of mechanical waves from the material flow from one input transport duct 20 to another.

[0067] The transmitted waves can be picked up by the input sensing devices 10, causing cross-readings (the input sensing device 10 of an input transport pipeline 20 ends up reading the flow of another input transport pipeline 20 that is touching the input transport pipeline 20 in which the input sensing device 10 is installed).

[0068] In these cases, separating foams minimize the transmission of vibration between input transport ducts 20. The foams can be fixed to one of the input transport ducts 20 by means of fasteners such as clamps, adhesives or any other form of fastening that prevents them from shifting during machine operation.

[0069] In an alternative embodiment of the present invention, the housing 111 further comprises a membrane 113 as shown in Figures 1 and 2. The membrane 113 may be an adhesive label with a translucent region that advantageously allows visualization of the signal indicator element 114. In addition, the membrane 113 may have a higher contrast region, preferably white, to allow the user to easily identify each input sensing device 10 on the membrane 113 itself with labels or manually with markers.

[0070] The housing 11 of the input sensing device 10, according to another alternative embodiment of the present invention, can be fixed to the input transport duct 20 by means of a fixing bracket 13 and a support complement 134, wherein the fixing bracket 13 and the support complement 134 enclose at least a part of the input transport duct 20. The fixing bracket 13 and the support complement 134 are then joined together by means of screws, clips, latches or any other means of fixing and / or joining. Optionally, the fixing bracket 13 and the support complement 134 are joined in an articulated manner at least at one of their ends and joining points.

[0071] In another embodiment, the support complement 134 is a half-pipe, as illustrated in Figures 11A and 11B. The support complement 134 has an opening 135 for joining and fixing with the fixing support 13. The support complement 134 may also have, on its interior, studs 136 to assist in fixing the support complement 134 to the input transport duct 20.

[0072] In a second preferred embodiment of the present invention, the input sensing device 10 comprises a housing 11 with a resonance wall 12; a mounting bracket 13 that can be removablely attached to the housing 11; a transducer 30; an electronic board 31; a radio frequency unit 32; a processing unit 33 and a power source 34.

[0073] The housing 11 of the input sensing device 10 further comprises an upper wall 118 and side walls 119 that extend around the entire perimeter of the housing in the longitudinal direction. Wherein the side walls 119 of the housing 11 have a particular geometry in which a smaller outer perimeter 121 located at the upper end surrounding the upper wall 118 extends longitudinally towards the resonance wall 12 at the base 112 of the housing 11, as illustrated in Figure 12. At the lower end of the housing 111 the side walls 119 widen so that they have a larger outer perimeter 120.

[0074] Furthermore, according to the second preferred embodiment of the present invention, the mounting bracket 13 comprises side walls 130 that extend longitudinally around the entire perimeter of the mounting bracket 13. The side walls 130 of the mounting bracket 13 have a smaller inner perimeter 123 at the upper end of the mounting bracket 13 and widen longitudinally, so that the side walls 130 have a larger inner perimeter 122.

[0075] The input sensing device 10, according to the third preferred embodiment of the present application, is disposed externally to the input transport duct 20, such that the resonance wall 12 is in contact with the input transport duct 20.

[0076] The larger outer perimeter 120 of the housing 11 must be greater than or substantially equal to the smaller inner perimeter 123 of the side walls 119 of the fixing support 13, in order to provide a stop for the fixing support 13.

[0077] In one embodiment, the mounting bracket 13 is then fitted into the housing 111 of the housing 11 by interference fit, taking advantage of the specific geometries of the housing 11 and the mounting bracket 13 which fit together perfectly, creating an efficient seal against dust, moisture, water, chemicals and other chemical elements harmful to electronic components. Optionally, the mounting bracket 13 can be coupled to the housing 11 by a locking means 133.

[0078] This second preferred embodiment of the present invention is particularly advantageous because it creates a mechanical barrier that assists in sealing the housing 11 and also provides a robust coupling between the mounting bracket 13 and the housing 11 of the input sensing device 10.

[0079] Another advantage of the second preferred embodiment is the easy attachment and detachment of the mounting bracket 13 and the housing 11 of the input sensing device 10, facilitating user access to the device 10 for any maintenance, component replacement and / or removal.

[0080] The present invention has been described using examples to divulge the technology, including the best method, and also to enable any person skilled in the art to practice the present invention. The patentable scope of the present invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples shall be within the scope of the claims if they include structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal language of the claims.

Claims

CLAIMS 1. INPUT SENSING DEVICE (10) FOR AN AGRICULTURAL MACHINE, wherein the machine comprises an input transport duct (20), characterized by comprising: a housing (11), wherein the housing (11) comprises a resonance wall (12); a fixing bracket (13), wherein the fixing bracket (13) is removablely attachable to the housing (11); a transducer (30); and an electronic board (31), wherein the electronic board (31) comprises a processing unit (33) and a power source (34); wherein the input sensing device (10) is disposed externally to the input transport duct (20), in which the resonance wall (12) is in contact with the input transport duct (20).

2. INPUT SENSING DEVICE (10), according to claim 1, characterized in that the housing (11) comprises a base (112) and a casing (111), wherein the base (112) comprises the resonance wall (12).

3. INPUT SENSING DEVICE (10), according to claim 2, characterized in that the base (112) of the housing (11) is hermetically fixed to the casing (111).

4. INPUT SENSING DEVICE (10), according to claim 2, characterized in that the housing (111) is additionally provided with a membrane (113).

5. INPUT SENSING DEVICE (10), according to claim 1, characterized in that the housing (11) is in a single piece.

6. INPUT SENSING DEVICE (10), according to claim 1, characterized in that the mounting bracket (13) additionally comprises a mounting means (131).

7. INPUT SENSING DEVICE (10), according to claim 6, characterized in that the fastening means (131) comprises an opening (132) and a locking means (133).

8. INPUT SENSING DEVICE (10), according to claim 7, characterized in that the housing (11) additionally comprises a recess (115) coinciding with the opening (132) of the mounting bracket (13).

9. INPUT SENSING DEVICE (10), according to claim 7, characterized in that the locking means (133) is any of clamps, clips, mechanical threads, clips, straps or adhesive.

10. INPUT SENSING DEVICE (10), according to claim 6, characterized in that the fastening means (131) comprises a locking means (133) embedded between clamps, clips, mechanical threads, clips, straps or adhesive.

11. INPUT SENSING DEVICE (10), according to claim 1, characterized in that the mounting bracket (13) additionally comprises at least one mounting tab.

12. INPUT SENSING DEVICE (10), according to claim 1, characterized in that the housing (11) additionally comprises studs.

13. INPUT SENSING DEVICE (10), according to claim 1, characterized in that the housing (11) is fixed to the input transport duct (20) by means of a fixing support (13) and a support complement (134), wherein the fixing support and the support complement (134) enclose the input transport duct (20).

14. INPUT SENSING DEVICE (10), according to claim 13, characterized in that the fixing support (13) and the support complement (134) are joined by means of a screw, clip, lock; and, optionally by the fixing support (13) and the support complement (134) being joined in an articulated manner at one end.

15. INPUT SENSING DEVICE (10), according to claim 13, characterized in that the support complement (134) is a half-pipe.

16. INPUT SENSING DEVICE (10), according to claim 1, characterized in that the housing (11) comprises a battery stop (116) and a plate stop (117).

17. INPUT SENSING DEVICE (10), according to claim 1, characterized in that the electronic board (31) additionally comprises a radio frequency unit (32).

18. INPUT SENSING DEVICE (10) FOR AN AGRICULTURAL MACHINE, wherein the machine comprises an input transport duct (20), characterized by comprising: a housing (11), wherein the housing (11) comprises a resonance wall (12); and the accommodation (11) additionally comprising: an upper wall (118); and side walls (119) around the entire perimeter of the accommodation (11); and a fixing bracket (13), wherein the fixing bracket (13) is removablely attachable to the housing (11); a transducer (30); and an electronic board (31), wherein the electronic board (31) comprises a processing unit (33) and a power source (34); wherein the side walls (119) of the housing (11) have a larger outer perimeter (120) at their lower end (111) near the resonance wall of the housing (11) and a smaller outer perimeter (121) at their upper end near the upper wall (118); and wherein the mounting bracket (13) comprises side walls (130), the side walls (130) of the mounting bracket (13) having a smaller inner perimeter (123) at their upper end and a larger inner perimeter (122) at their lower end; wherein the input sensing device (10) is disposed externally to the input transport duct (20), in which the resonance wall (12) is in contact with the input transport duct (20).

19. INPUT SENSING DEVICE (10), according to claim 18, characterized by the side walls (130) extending around the entire perimeter of the mounting bracket (13).

20. INPUT SENSING DEVICE (10), according to any one of claims 18 to 19, characterized in that the fixing support (13) fits into the housing (11) by interference; or in that the fixing support (13) is coupled to the housing (11) by a locking means (133).

21. INPUT SENSING DEVICE (10), according to any one of claims 18 to 20, characterized in that the larger outer perimeter (120) of the housing (11) is greater than or equal to the smaller inner perimeter (123) of the side walls (119) of the mounting bracket (13).

22. INPUT SENSING DEVICE (10), according to claim 18, characterized in that the housing (11) is in a single piece.

23. INPUT SENSING DEVICE (10), according to claim 18, characterized in that the electronic board (31) additionally comprises a radio frequency unit (32).

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