Excess material detection system for porridge feeder
By using a low-voltage circuit consisting of a rotatable conductive probe and a conductive rod in the porridge feeder, the problems of false alarms and emptying pressure caused by excessive probe suspension height are solved, achieving accurate residual material detection and a safe eating environment.
Patent Information
- Application Number
- CN202520021974.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Existing feed porridge feeders' residual feed detection schemes suffer from false alarms due to excessively high probe suspension heights, leading to high cleaning pressure, feed waste, and spoilage of wet feed accumulation, which affects the safety of pigs' diet.
The conductive probe is shaped like an inverted "L" or "F". The horizontal part can be rotatably fitted onto the bottom of the conductive rod, and the suspended end is spaced apart from the bottom surface of the metal porridge container to form a weak current circuit. The arching and rotation of the pig when it eats reduces the suspension height of the probe and expands the detection range.
Reduce false reports of leftover feed, lower the pressure of waste disposal, save feed, prevent wet feed from spoiling, improve the accuracy of leftover feed detection, and ensure the safety of pigs' food consumption.
Smart Images
Figure CN223596947U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of aquaculture equipment, specifically relating to a residual feed detection system for a porridge feeder. Background Technology
[0002] In pig farming, feeding pigs wet-mixed feed or porridge-like feed can improve their growth rate, reduce feed consumption, respiratory disease incidence, and piglet diarrhea, as well as reduce drug use, drug residues in pigs, and the incidence of biological infectious diseases. A porridge feeder is a feeding device that can smoothly discharge feed and automatically perform timed and quantitative feeding. For example, the existing patent "CN208317846U, A Smart Porridge Feeder" uses a controller, clock circuit module, memory, geared motor, and solenoid valve in the control box. The geared motor and solenoid valve can be activated synchronously, allowing the grinding disc to be driven to grind wet-mixed feed or porridge-like feed on-site after feeding feed and water to the bottom grinding disc. This achieves timed and quantitative feeding (regardless of day or night), ensuring feed freshness and preventing spoilage, and significantly reducing manual labor, making it suitable for large-scale pig farms.
[0003] Currently, after the feeder supplies the porridge-like feed, it is necessary to promptly detect any remaining feed to confirm whether the pigs have consumed it all. Existing leftover feed detection methods typically involve suspending a vertical probe above a metal porridge container. This probe, along with a leftover feed detection circuit board, the feeder's metal frame, the metal porridge container, and the porridge deposited on the inner bottom surface of the container, forms a weak electrical circuit for detecting the presence of leftover feed by checking the continuity of the circuit. If the porridge comes into contact with the vertical probe, the circuit is open, and the leftover feed detection circuit board identifies the presence of leftover feed. If the porridge loses contact with the probe, the circuit is closed, and the leftover feed detection circuit board identifies the absence of leftover feed.
[0004] However, the presence of the vertical probe can cause pigs to have difficulty finishing the porridge under the probe. Therefore, the suspension height of the existing vertical probe cannot be too low (generally around 30 mm; otherwise, the porridge's viscosity will lead to incorrect feed detection results: even when there is no porridge around the probe, it may still falsely report feed residue due to the accumulation of porridge under the probe). This results in a lot of feed remaining in the basin when the weak current circuit is disconnected, which will cause greater pressure to clean the basin, waste feed, and spoilage and affect the safety of pigs' consumption due to the prolonged accumulation of porridge-like wet feed. Utility Model Content
[0005] The purpose of the present utility model is to provide a remaining material detection system for a porridge feeder, so as to solve the problems existing in the existing remaining material detection scheme. Since pigs are inconvenient to eat up the porridge body under the probe, a relatively high probe suspension height needs to be set, resulting in false alarms about the presence or absence of remaining materials, high cleaning pressure, waste of feed, and deterioration due to the long accumulation time of the porridge-like wet material, which affects the food safety of pigs.
[0006] In order to achieve the above purpose, the present utility model adopts the following technical solutions:
[0007] The present utility model provides a remaining material detection system for a porridge feeder, including a conductive probe, a conductive rod, a conductive wire, a remaining material detection circuit board, and an insulating fixing mechanism. Among them, the insulating fixing mechanism is used to fix the conductive rod above the metal porridge basin of the porridge feeder and make the conductive rod vertically placed;
[0008] The conductive probe is in an inverted "L" shape or a "factory" shape, and the horizontal part of the conductive probe is rotatably sleeved at the bottom end of the conductive rod, and the suspended end of the conductive probe is spaced from the inner bottom surface of the metal porridge basin;
[0009] The top end of the conductive rod is electrically connected to one end of the conductive wire, the other end of the conductive wire is electrically connected to the first connection end of the remaining material detection circuit board, and the second connection end of the remaining material detection circuit board is electrically connected to the metal porridge basin through the metal frame of the porridge feeder, so as to form a weak current circuit composed of the conductive probe, the conductive rod, the conductive wire, the remaining material detection circuit board, the metal frame, the metal porridge basin, and the porridge body deposited on the inner bottom surface of the metal porridge basin for detecting whether there is remaining material through the on-off situation of the circuit.
[0010] Based on the above content of the utility model, a new remaining material detection scheme for a porridge feeder that can effectively reduce the probe suspension height is provided, that is, it includes a conductive probe, a conductive rod, a conductive wire, a remaining material detection circuit board, and an insulating fixing mechanism. Among them, the conductive probe is in an inverted "L" shape or a "factory" shape, and the horizontal part of the conductive probe is rotatably sleeved at the bottom end of the conductive rod, and the suspended end of the conductive probe is spaced from the inner bottom surface of the metal porridge basin. In this way, when pigs eat, the conductive probe can be rotated clockwise or counterclockwise by unconscious arching to facilitate pigs to eat up the porridge body under the probe and set a lower probe suspension height. Furthermore, it can reduce false alarms about the presence or absence of remaining materials, reduce the cleaning pressure, save feed, and avoid the problems of deterioration due to the long accumulation time of the porridge-like wet material and affecting the food safety of pigs. Moreover, the detection range of the probe is extended from a point to a circular line, improving the accuracy of the remaining material detection result and facilitating practical application and promotion.
[0011] In one possible design, the insulating fixing mechanism includes a metal tube and an insulating tube, wherein the metal tube is located above the metal porridge container and is fixedly connected to the metal frame in a vertical hanging posture, and the top of the insulating tube is inserted into the bottom opening of the metal tube by a threaded connection.
[0012] The conductive rod is inserted and fixed inside the insulating tube, with the bottom end of the conductive rod protruding from the bottom opening of the insulating tube.
[0013] In one possible design, the internal cavity of the insulating tube is divided into an upper cavity section and a lower cavity section, wherein the inner diameter of the upper cavity section is larger than the inner diameter of the lower cavity section, so that the conductive rod is inserted into the upper cavity section and the lower cavity section sequentially from top to bottom, and the rod head of the conductive rod only enters the upper cavity section.
[0014] In one possible design, the conductive rod is a screw and is inserted into the lower tubular section in a threaded manner.
[0015] In one possible design, the conductive rod is clamped and fixed in the insulating tube by the rod head located above and the first nut located below, wherein the first nut is threaded onto the middle of the conductive rod.
[0016] In one possible design, the head of the conductive rod is provided with a second nut, wherein the second nut is threaded onto the conductive wire winding at the top of the conductive rod.
[0017] In one possible design, when the conductive rod is a screw, it also includes a third nut, an annular washer, and a spring. The third nut is threaded onto the bottom of the conductive rod, the annular washer is fitted onto the bottom of the conductive rod with a clearance fit and is located above the third nut, and the spring is compressed so that its two ends respectively abut against the bottom end face of the insulating tube and the upper surface of the annular washer.
[0018] The transverse portion of the conductive probe is rotatably fitted onto the bottom of the conductive rod and located between the third nut and the annular washer.
[0019] In one possible design, the third nut is a nut with a lateral locking function.
[0020] In one possible design, the length of the transverse portion of the conductive probe is between 35 and 45 mm, and / or the vertical length of the non-transverse portion of the conductive probe is between 35 and 45 mm.
[0021] In a possible design, the distance between the suspended end of the conductive probe and the inner bottom surface of the metal congee basin is between 5 and 50 millimeters.
[0022] Advantages of the above solution:
[0023] (1) The present utility model provides a new solution for detecting remaining materials in a porridge feeder that can effectively reduce the suspension height of the probe. It includes a conductive probe, a conductive rod, a conductive wire, a remaining material detection circuit board, and an insulating fixing mechanism. Among them, the conductive probe is in an inverted "L" shape or a "factory" shape, and the horizontal part of the conductive probe is rotatably sleeved on the bottom end of the conductive rod, and the suspended end of the conductive probe is spaced from the inner bottom surface of the metal congee basin. In this way, when the pig eats, by unconsciously arching the conductive probe to rotate clockwise or counterclockwise, it is beneficial for the pig to eat up the porridge under the probe and set a lower probe suspension height. Furthermore, it can reduce false alarms of the presence or absence of remaining materials, reduce the pressure of clearing the plate, save feed, and avoid problems such as deterioration due to the long-term accumulation of porridge-like wet materials and affecting the food safety of pigs. Also, the detection range of the probe is extended from a point to a circular line, improving the accuracy of the remaining material detection result and facilitating practical application and promotion. Description of the Drawings
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0025] Figure 1 It is a schematic diagram of the installation structure of the remaining material detection system for the porridge feeder provided by the embodiment of the present application on the porridge feeder.
[0026] Figure 2 It is a three-dimensional enlarged structure schematic diagram of the remaining material detection system provided by the embodiment of the present application.
[0027] Figure 3 It is a cross-sectional enlarged structure schematic diagram of the remaining material detection system provided by the embodiment of the present application. [[ID=@25]]
[0028] Figure 4 It is a schematic diagram of the rotation trajectory of the conductive probe in the remaining material detection system provided by the embodiment of the present application.
[0029] Figure 5 It is a cross-sectional structure schematic diagram of the insulating tube body in the remaining material detection system provided by the embodiment of the present application. Detailed Embodiments
[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these embodiments without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.
[0031] It should be understood that although the terms "first" and "second", etc., may be used herein to describe various objects, these objects should not be limited by these terms. These terms are only used to distinguish one object from another. For example, the first object may be referred to as the second object, and similarly, the second object may be referred to as the first object, without departing from the scope of the exemplary embodiments of this utility model.
[0032] It should be understood that the term "and / or" that may appear in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, or A and B exist simultaneously. Another example is A, B and / or C, which can mean that any one of A, B, and C or any combination thereof exists. The term " / and" that may appear in this document describes another relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone or A and B exist simultaneously. In addition, the character " / " that may appear in this document generally indicates that the related objects before and after it are in an "or" relationship.
[0033] Example 1
[0034] like Figures 1-5As shown in the figure, the residue detection system provided in this embodiment and used for a porridge feeder includes, but is not limited to, a conductive probe 1, a conductive rod 2, a conductive wire 3, a residue detection circuit board 4, an insulating fixing mechanism 5, etc. Among them, the insulating fixing mechanism 5 is used to fix the conductive rod 2 above the metal porridge basin 101 of the porridge feeder 100 and make the conductive rod 2 vertically placed; the conductive probe 1 is in an inverted "L" shape or a "factory" shape, and the transverse part of the conductive probe 1 is rotatably sleeved at the bottom end of the conductive rod 2, and the suspended end of the conductive probe z 1 is spaced from the inner bottom surface of the metal porridge basin 101; the top end of the conductive rod 2 is electrically connected to one end of the conductive wire 3, the other end of the conductive wire 3 is electrically connected to the first connection end of the residue detection circuit board 4, and the second connection end of the residue detection circuit board z 4 is electrically connected to the metal porridge basin 101 through the metal frame 102 of the porridge feeder 100, so as to form a weak current circuit composed of the conductive probe 1, the conductive rod 2, the conductive wire 3, the residue detection circuit board 4, the metal frame 102, the metal porridge basin 101, and the porridge body 200 deposited on the inner bottom surface of the metal porridge basin 101 and used to detect whether there is residue through the on-off situation of the circuit.
[0035] As Figures 1-3 shown, in the specific structure of the residue detection system, the residue detection circuit board 4, the metal frame 102, the metal porridge basin 101, etc. are all conventional configurations in the existing residue detection solutions, so as to realize the following working principle that can be conventionally deduced based on the existing residue detection principle: If the porridge body contacts the conductive probe 1, the weak current circuit is turned on, and the residue detection circuit 4 identifies that there is residue; if the porridge body is separated from the vertical probe 1, the weak current circuit is turned off, and the residue detection circuit 4 identifies that there is no residue. The core difference between this embodiment and the existing residue detection system is that the conductive probe 1 in the shape of an inverted "L" or a "factory" (as Figure 3 shown, for example, in the shape of a "factory") replaces the vertical probe in the existing residue detection solution, and because the transverse part of the conductive probe 1 is rotatably sleeved at the bottom end of the conductive rod 2, this feature can be utilized to make the pig unconsciously arch the conductive probe 1 to rotate clockwise or counterclockwise when eating, which is beneficial for the pig to eat up the porridge body under the probe and set a lower probe suspension height, thereby reducing false alarms of whether there is residue, reducing the pressure of clearing the plate, saving feed, and avoiding the problems of deterioration due to the long-term accumulation of porridge-like wet feed and affecting the food safety of pigs. In addition, since the detection range of the probe is expanded from a point to a Figure 4The circled lines shown can also improve the accuracy of residual material detection results by taking into account the viscous characteristics of porridge. That is, only when the weak current circuit is still disconnected after the probe is passively rotated once can it be confirmed that there is no residual material (the existing residual material detection scheme confirms that there is no residual material by finding that the weak current circuit is disconnected at a single point under the needle, without considering the possibility of porridge accumulating around the needle, and the existing residual material detection scheme also does not consider the situation that the weak current circuit will not disconnect for a long time due to the accumulation of porridge at a single point under the needle, and will falsely report that there is residual material).
[0036] Preferably, the insulating fixing mechanism 5 includes, but is not limited to, a metal tube 51 and an insulating tube 52. The metal tube 51 is located above the metal porridge container 101 and is vertically suspended and fixedly connected to the metal frame 102. The top of the insulating tube 52 is threaded into the bottom opening of the metal tube 51. The conductive rod 2 is inserted and fixed inside the insulating tube 52, with the bottom end of the conductive rod 2 protruding from the bottom opening of the insulating tube 52 (for example, if the length of the conductive rod 2 is 100 mm, approximately 50 mm may protrude). Figures 2-3 As shown, the specific design of the insulating fixing mechanism 3 facilitates the installation of the conductive rod 2 and the conductive probe 1, improving practicality. Furthermore, the metal tube 51 (e.g., 50 mm in length) can be specifically, but not limited to, fixedly connected to the metal frame 102 by welding; the insulating tube 52 needs to be of a suitable length (e.g., 100 mm in length) and needs to be made of existing materials with characteristics such as being sturdy, resistant to biting, having a smooth surface, and being non-sticky.
[0037] More preferably, the internal cavity of the insulating tube 52 is divided into an upper cavity section 521 and a lower cavity section 522, wherein the inner diameter of the upper cavity section 521 (e.g., 12 mm) is larger than the inner diameter of the lower cavity section 522 (e.g., 8 mm), so that the conductive rod 2 is inserted into the upper cavity section 521 and the lower cavity section 522 sequentially from top to bottom, and the rod head of the conductive rod 2 only enters the upper cavity section 521. Figure 5 As shown, through the aforementioned specific design, the electrical connection between the conductive rod 2 and the metal tube 51 and the metal frame 102 can be effectively avoided, ensuring the correctness of the weak current circuit configuration and the correctness of the residual material detection results.
[0038] Specifically, the conductive rod 2 is a screw and is inserted into the lower tube section 522 via a threaded connection. This achieves the purpose of fixing the conductive rod 2 inside the insulating tube body 52. More specifically, the conductive rod 2 is clamped and fixed in the insulating tube body 52 by the upper rod head and the lower first nut 61, wherein the first nut 61 is threaded onto the middle of the conductive rod 2. Further, the rod head of the conductive rod 2 uses a second nut 62, which is threaded onto the conductive wire winding at the top of the conductive rod 2. This ensures the stability of the connection between the conductive rod 2 and the conductive wire 3 (i.e., the end of the conductive wire 3 is clamped by the second nut 62 and the screw).
[0039] Further preferably, when the conductive rod 2 is a screw, it also includes a third nut 63, an annular washer 7, and a spring 8. The third nut 63 is threaded onto the bottom of the conductive rod 2, the annular washer 7 is fitted onto the bottom of the conductive rod 2 with a clearance fit and is located above the third nut 63, and the spring 8 is compressed so that its two ends respectively abut against the bottom end face of the insulating tube 52 and the upper surface of the annular washer 7; the transverse portion of the conductive probe 1 is rotatably fitted onto the bottom of the conductive rod 2 and located between the third nut 63 and the annular washer 7. Figures 2-3 As shown, the third nut 63 allows for convenient adjustment of the suspension height of the conductive probe 1 at any time, further enhancing practicality. Furthermore, the spring 7 provides a clamping effect on the annular gasket 7 and the transverse portion of the conductive probe 1, ensuring that the conductive probe 1 can rotate easily while maintaining good electrical contact between the conductive probe 1 and the conductive rod 2. This keeps the needle tip in a suspended, tilted state, preventing it from scraping the inner bottom surface of the metal porridge container 101. This protects the needle tip and prevents false alarms due to direct contact between the needle tip and the metal porridge container 101 when there is no porridge, further improving the accuracy of the test results. Specifically, to facilitate fixing and loosening the third nut 63 after the probe suspension height is adjusted, the third nut 63 is preferably a nut with a lateral locking function.
[0040] Specifically, the length of the transverse portion of the conductive probe 1 is between 35 and 45 mm, and / or the vertical length of the non-transverse portion of the conductive probe 1 is between 35 and 45 mm. For example... Figure 3As shown, the length of the lateral part of the conductive probe 1 is, for example, 40 millimeters (that is, the rotation diameter needs to be smaller than the width of the inner bottom annular surface of the metal congee basin 101); the vertical length of the non-lateral part of the conductive probe 1 is, for example, 40 millimeters, so as to ensure that the bottom end of the conductive rod 2 can be suspended at least more than 30 millimeters, so that pigs can eat up the congee under the rod, achieving the purpose of preventing accumulation.
[0041] Specifically, the distance between the suspended end of the conductive probe 1 and the inner bottom surface of the metal congee basin 101 is between 5 and 50 millimeters. As Figure 3 shown, the aforementioned distance can be optimized to the extreme of 5 millimeters, so that compared with the existing suspended height of about 30 millimeters, the suspended height of the probe to be set can be greatly reduced.
[0042] In summary, adopting the remaining material detection system provided by this embodiment has the following technical effects:
[0043] (1) This embodiment provides a new type of congee feeder remaining material detection scheme that can effectively reduce the suspended height of the probe, that is, it includes a conductive probe, a conductive rod, a conductive wire, a remaining material detection circuit board and an insulating fixing mechanism. Among them, the conductive probe is in an inverted "L" shape or a "factory" shape, and the lateral part of the conductive probe is rotatably sleeved on the bottom end of the conductive rod, and the suspended end of the conductive probe is spaced from the inner bottom surface of the metal congee basin. In this way, when pigs eat, they can unconsciously arch the conductive probe to rotate clockwise or counterclockwise to facilitate pigs to eat up the congee under the needle and set a lower probe suspended height, thereby reducing false alarms of the presence or absence of remaining materials, reducing the pressure of clearing the plate, saving feed, and avoiding problems such as deterioration due to the long accumulation time of porridge-like wet materials and affecting the food safety of pigs. And the detection range of the probe is expanded from a point to a circular line, improving the accuracy of the remaining material detection result and facilitating practical application and promotion.
[0044] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A residual material detection system for a porridge maker, comprising a conductive probe (1), a conductive rod (2), a conductive wire (3), a residual material detection circuit board (4) and an insulating fixing mechanism (5), wherein, The insulating fixing mechanism (5) is used to fix the conductive rod (2) above the metal porridge basin (101) of the porridge feeder (100) and make the conductive rod (2) vertically placed; The conductive probe (1) is in an inverted "L" shape or a "Γ" shape, and the transverse part of the conductive probe (1) is rotatably sleeved on the bottom end of the conductive rod (2), and the suspended end of the conductive probe (1) is spaced from the inner bottom surface of the metal porridge basin (101); The top end of the conductive rod (2) is electrically connected to one end of the conductive wire (3), the other end of the conductive wire (3) is electrically connected to the first connection end of the residual material detection circuit board (4), and the second connection end of the residual material detection circuit board (4) is electrically connected to the metal porridge basin (101) through the metal frame (102) of the porridge feeder (100), so as to form a weak current circuit composed of the conductive probe (1), the conductive rod (2), the conductive wire (3), the residual material detection circuit board (4), the metal frame (102), the metal porridge basin (101), and the porridge body (200) deposited on the inner bottom surface of the metal porridge basin (101) and used to detect whether there is residual material through the on-off situation of the circuit.
2. The slug detection system of claim 1, wherein, The insulating fixing mechanism (5) includes a metal tube body (51) and an insulating tube body (52). Among them, the metal tube body (51) is located above the metal porridge basin (101) and is fixedly connected to the metal frame (102) in a vertically hanging posture, and the top of the insulating tube body (52) is inserted into the bottom pipe mouth of the metal tube body (51) by a threaded connection; The conductive rod (2) is inserted and fixed in the insulating tube body (52), and the bottom end of the conductive rod (2) exposes the bottom pipe mouth of the insulating tube body (52).
3. The slug detection system of claim 2, wherein, The inner cavity of the insulating tube body (52) is divided into an upper cavity section (521) and a lower cavity section (522). Among them, the inner diameter of the upper cavity section (521) is larger than the inner diameter of the lower cavity section (522), so that the conductive rod (2) is inserted into the upper cavity section (521) and the lower cavity section (522) from top to bottom in sequence, and the rod head of the conductive rod (2) only enters the upper cavity section (521).
4. The slug detection system of claim 3, wherein, The conductive rod (2) is a screw rod and is inserted into the lower cavity section (522) by a threaded fit.
5. The slug detection system of claim 4, wherein, The conductive rod (2) is clamped and fixed in the insulating tube body (52) by the rod head located above and the first nut (61) located below. Among them, the first nut (61) is sleeved on the middle part of the conductive rod (2) by a threaded fit.
6. The slug detection system of claim 5, wherein, The rod head of the conductive rod (2) uses a second nut (62). Among them, the second nut (62) is sleeved on the wire winding part at the top end of the conductive rod (2) by a threaded fit.
7. The slug detection system of claim 2, wherein, When the conductive rod (2) is a screw rod, a third nut (63), an annular gasket (7) and a spring (8) are further included, wherein the third nut (63) is threadedly sleeved on the bottom of the conductive rod (2), the annular gasket (7) is gap-fittingly sleeved on the bottom of the conductive rod (2) and located above the third nut (63), and the spring (8) is compressed to abut the bottom pipe orifice end surface of the insulating pipe body (52) and the upper surface of the annular gasket (7) respectively and correspondingly at two ends. The lateral part of the conductive probe (1) is rotatably sleeved on the bottom of the conductive rod (2) and located between the third nut (63) and the annular gasket (7).
8. The slug detection system of claim 7, wherein, The third nut (63) is a nut with a lateral locking function.
9. The slug detection system of claim 1, wherein, The length of the lateral part of the conductive probe (1) is between 35-45 mm, and / or the vertical length of the non-lateral part of the conductive probe (1) is between 35-45 mm.
10. The slug detection system of claim 1, wherein, The distance between the overhanging end of the conductive probe (1) and the inner bottom surface of the metal porridge basin (101) is between 5-50 mm.