Device, method and computer-readable storage medium for detecting missing packages in a box

Abstract

The present invention provides a carton lack of pack detection device, method and computer-readable storage medium, the carton lack of pack detection device comprising: a sensor for sensing product packs in the carton and outputting a sensing signal; a processor for receiving and analyzing the sensing signal to form a product pack status signal for indicating the forming state of the product packs in the carton; a logic controller for forming an indication signal corresponding to the product pack status signal according to the product pack status signal. The carton lack of pack detection device, method and computer-readable storage medium of the present invention ensure the detection effect, prevent the lack of packs of cigarettes from flowing into subsequent workstations, and avoid the occurrence of artificial lack of packs.

Description

Technical Field

[0001] The present invention belongs to the technical field of tobacco electrical appliances, and relates to a detection device and method, and in particular to a strip box missing detection device, method and computer-readable storage medium. Background Art

[0002] In tobacco equipment, the packaging machine is prone to missing packs during operation and after troubleshooting, and missing packs are the most serious Class A defects in product quality. The detection devices on the existing machines are negative pressure missing pack detection and three-in-one weight detection. When producing short, medium, and thin cigarettes, they are particularly prone to the following shortcomings: 1. Failure of detection caused by blockage of the air suction eye; 2. High requirements for air source stability; 3. Difficult maintenance and short cycle; 4. Frequent replacement of components leads to high costs. In summary, when conventional negative pressure detection is used to produce new cigarettes, it will not be able to fully detect missing packs due to long-term production of negative pressure dust accumulation. Once an error occurs in the detection, it will cause missing packs to be missed, causing Class A quality defects. The only way to ensure that missing packs can be accurately removed is to rely on the last line of defense of three-in-one weight detection, which causes excessive pressure on the three-in-one weight detection.

[0003] Therefore, how to provide a box missing package detection device, method and computer-readable storage medium to solve the problems of low detection accuracy in the prior art, resulting in missing packages and missed packages, causing serious quality defects, etc., has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a box missing package detection device, method and computer-readable storage medium to solve the problem of low detection accuracy in the prior art, resulting in missing packages and missed rejection, causing serious quality defects.

[0005] To achieve the above-mentioned purpose and other related purposes, the present invention provides a strip box missing package detection device, comprising: a sensor, used to sense the product package in the strip box and output a sensing signal; a processor, used to receive and analyze the sensing signal to form a product package status signal for indicating the molding state of the product package in the strip box; a logic controller, used to form an indication signal corresponding to the product package status signal according to the product package status signal.

[0006] In one embodiment of the present invention, the sensor is composed of a plurality of capacitive proximity detection probes arranged in a combined manner; the arrangement shape of the capacitive proximity detection probes matches the arrangement shape of the product packages in the box.

[0007] In one embodiment of the present invention, the sensing signal includes a first sensing signal of the capacitive proximity detection probe being blocked and a second sensing signal of the capacitive proximity detection probe being unblocked.

[0008] In one embodiment of the present invention, when the number of signals of the first sensing signal received by the processor is consistent with the number of product packages when the box is full, a first product package status signal is formed; the first product package status signal is used to indicate that the box is in a full package state; when the number of signals of the first sensing signal received by the processor is inconsistent with the number of product packages when the box is full, a second product status signal is formed; the second product status signal is used to indicate that the box is in a missing package state; when the number of signals of the second sensing signal received by the processor is consistent with the number of product packages when the box is full, a third product status signal is formed; the third product status signal is used to indicate an empty package state.

[0009] In one embodiment of the present invention, when the logic controller receives the first product package status signal, it forms a full package indication signal corresponding to the first product package status signal; when the logic controller receives the second product package status signal, it forms a missing package indication signal corresponding to the second product package status signal; when the logic controller receives the third product status signal, it forms a self-check error indication signal corresponding to the third product status signal.

[0010] In one embodiment of the present invention, the logic controller includes a falling edge detector connected to the processor, a first logic AND gate connected to the falling edge detector, a trigger connected to the first logic AND gate, a shift register connected to the trigger, and a second logic AND gate connected to the processor; when the processor outputs a first product package status signal, the falling edge detector does not detect a falling edge, and the trigger is triggered through the first logic AND gate, so that 1 is injected into the shift register, and a full package indication signal is output after the shift register is shift-driven; when the processor outputs a second product status signal, the falling edge detector detects a falling edge, and the first logic AND gate does not trigger the trigger, so that 0 is injected into the shift register, and a missing package indication signal is output after the shift register is shift-driven; when the processor outputs a third product status signal, a self-check error indication signal is output through the second logic AND gate.

[0011] On the other hand, the present invention provides a method for detecting a lack of packages in a strip box, comprising: sensing a product package in the strip box and outputting a sensing signal; receiving and analyzing the sensing signal to form a product package status signal for indicating a molding state of the product package in the strip box; and forming an indication signal corresponding to the product package status signal based on the product package status signal.

[0012] In one embodiment of the present invention, the sensing signal includes a first sensing signal of a capacitive proximity detection probe that is blocked and a second sensing signal of an unblocked capacitive proximity detection probe;

[0013] The step of receiving and analyzing the sensing signal to form a product package status signal for indicating the molding state of the product packages in the strip box includes: when the number of signals of the first sensing signal received is consistent with the number of product packages when the strip box is full, a first product package status signal is formed; the first product package status signal is used to indicate that the product packages in the strip box are in a full package state; when the number of signals of the first sensing signal received is inconsistent with the number of product packages when the strip box is full, a second product status signal is formed; the second product status signal is used to indicate that the product packages in the strip box are in a missing package state; when the number of signals of the second sensing signal received is consistent with the number of product packages when the strip box is full, a third product status signal is formed; the third product status signal is used to indicate an empty package state.

[0014] In one embodiment of the present invention, the step of forming an indication signal corresponding to the product package status signal one by one according to the product package status signal includes: when the first product package status signal is received, forming a full package indication signal corresponding to the first product package status signal; when the second product package status signal is received, forming a missing package indication signal corresponding to the second product package status signal; when the third product status signal is received, forming a self-test error indication signal corresponding to the third product status signal.

[0015] The last aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, which implements the method for detecting missing packets in a cartridge when the program is executed by a processor.

[0016] As described above, the device, method and computer-readable storage medium for detecting missing packages in a cartridge according to the present invention have the following beneficial effects:

[0017] First, the present invention has a self-diagnosis signal, is maintenance-free for life, does not need to be adjusted according to the brand, and does not have the situation of light decay and the like that affects the detection accuracy.

[0018] Second, the present invention uses PLC to make real-time judgment on the detection signal. When an abnormality occurs, a fault signal is automatically issued and a prompt is displayed on the GD display screen to facilitate maintenance workers to handle it, thereby ensuring the detection effect and preventing the missing packs of cigarettes from flowing into subsequent workstations.

[0019] Third, the present invention monitors the relevant sensors in the CT packaging process to avoid the occurrence of artificial package shortage.

[0020] Fourthly, the whole set of detection mechanism of the present invention is compact and easy to modify and implement.

[0021] Fifth, the present invention uses 10 customized sensor probes with intelligent detection functions and automatic gain adjustment to detect the status of cigarette cartons in the narrow space of the packaging machine, and the detection effect is accurate and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram showing the principle structure of a strip box missing detection device in one embodiment of the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of the upper detection housing on which five capacitive proximity detection probes are installed according to the present invention.

[0024] Figure 3 It is a schematic diagram of the structure of the lower detection housing on which five capacitive proximity detection probes are installed according to the present invention.

[0025] Figure 4 It is a schematic diagram of an implementation structure of a processor of the present invention.

[0026] Figure 5 It is a schematic diagram of an implementation structure of the logic controller of the present invention.

[0027] Figure 6 FIG. 1 is a flow chart of a method for detecting missing packages in a cartridge according to an embodiment of the present invention.

[0028] Component number description

[0029]

[0030] DETAILED DESCRIPTION

[0031] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0032] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0033] This embodiment provides a device for detecting missing packets in a cartridge, including:

[0034] The sensor is used to sense the product package in the strip box and output a sensing signal;

[0035] A processor, used for receiving and analyzing the sensing signal to form a product package status signal for indicating the forming status of the product package in the strip box;

[0036] The logic controller is used to generate an indication signal corresponding to the product package status signal according to the product package status signal.

[0037] The following will describe in detail the missing pack detection device provided by this embodiment in conjunction with the drawings. For example, the missing pack detection device of this embodiment can be used to detect 10 cigarette packs in a cigarette carton.

[0038] See also Figure 1 , which is a schematic diagram of the principle structure of a strip box missing package detection device in one embodiment. Figure 1 As shown, the cartridge lacking package detecting device 1 comprises: a sensor 11 , a processor 12 , an encoder 13 and a logic controller 14 .

[0039] The sensor 11 is used to sense the product packages in the strip box and output a sensing signal. The sensor 11 is composed of a plurality of capacitive proximity detection probes arranged in a combination. The arrangement shape of the capacitive proximity detection probes matches the arrangement shape of the product packages in the strip box.

[0040] In order to detect 10 cigarette packs in a carton of cigarettes, in this embodiment, the sensor 11 is designed as five upper capacitive proximity detection probes and five lower capacitive proximity detection probes. The five upper capacitive proximity detection probes are installed as follows: Figure 2 The five capacitive proximity detection probes in the lower layer are installed in the five notches on the contact surface between the upper detection shell and the cigarette package as shown in FIG. Figure 3 The five notches shown below are provided on the contact surface between the detection shell and the cigarette package.

[0041] In this embodiment, the sensing signal includes a first sensing signal when the capacitive proximity detection probe is blocked and a second sensing signal when the capacitive proximity detection probe is not blocked.

[0042] The processor 12 connected in parallel with the capacitive proximity detection probe is used to receive and analyze the sensing signal to form a product package status signal for indicating the molding status of the product package in the strip box.

[0043] In this embodiment, when the number of signals of the first sensing signal received by the processor 12 is consistent with the number of product packages when the box is full, a first product package status signal is generated; the first product package status signal is used to indicate that the box is full of product packages;

[0044] When the number of signals of the first sensing signal received by the processor 12 is inconsistent with the number of product packages when the box is full of packages, a second product status signal is generated; the second product status signal is used to indicate that the box is short of product packages;

[0045] When the number of signals of the second sensing signal received by the processor 12 is consistent with the number of product packages when the box is full of packages, a third product status signal is generated; the third product status signal is used to indicate an empty package state.

[0046] See also Figure 4 , which is a schematic diagram of an implementation structure of a processor. Figure 4 As shown, the processor 12 includes a logic AND gate 121 , a logic OR gate 122 , a logic AND gate 123 and a logic OR gate 124 .

[0047] For example, 10 capacitive proximity detection probes output the sensed induction signals to Figure 4 After the processor 12 is shown, when the number of signals of the first sensing signal received by the processor 12 is 10, the processor 12 outputs a high level for indicating that the product package in the box is full. When the number of signals of the first sensing signal received by the processor 12 is greater than 0 and less than 10, the processor 12 outputs a 1KHz pulse for indicating that the product package in the box is missing. When the number of signals of the first sensing signal received by the processor 12 is 0 or 10 second sensing signals, the processor 12 outputs a low level for indicating an empty package state.

[0048] The encoder 13 is used to output a packet absence detection phase and a self-detection phase.

[0049] For example, when the packet shortage detection phase is between 66 and 88 degrees, there should be 10 cigarette packs under the detector. If all ten probes detect them, the sensor processing board will output a high level.

[0050] For example, between 240 and 260 degrees of the self-test phase, the area under the detector should be empty. At this time, all ten probes are not blocked, and the sensor processing board outputs a low level.

[0051] The logic controller 14 connected to the processor 12 and the encoder 13 is used to generate an indication signal corresponding to the product package status signal according to the product package status signal. In this embodiment, the logic controller 14 is a PLC.

[0052] In this embodiment, when the logic controller receives the first product package status signal, it forms a full package indication signal corresponding to the first product package status signal; when the logic controller receives the second product package status signal, it forms a missing package indication signal corresponding to the second product package status signal; when the logic controller receives the third product status signal, it forms a self-test error indication signal corresponding to the third product status signal.

[0053] See also Figure 5 , which is a schematic diagram of an implementation structure of a logic controller. Figure 5 As shown, the logic controller 14 includes a falling edge detector 140 connected to the processor 12, a first logic AND gate 141 connected to the falling edge detector 140, a trigger 142 connected to the first logic AND gate 141, a shift register 143 connected to the trigger 142, and a second logic AND gate 144 connected to the processor 12;

[0054] When the processor 12 outputs the first product package status signal, the falling edge detector 140 detects a falling edge, and triggers the trigger 142 through the first logic AND gate 141, so that 1 is injected into the shift register 143, and a full package indication signal is output through the shift register 132. In this embodiment, after the shift drive, a pulse with a duty cycle of 200 Hz and 90% is output as the full package indication signal.

[0055] When the processor 12 outputs the second product status signal, the falling edge detector 140 detects a falling edge, and the first logic AND gate 141 does not trigger the trigger 142, so that it injects 0 into the shift register 143, and the shift register 143 shifts and drives to output a missing packet indication signal. In this embodiment, after shift driving, a pulse with a duty cycle of 200 Hz and 10% is output as the missing packet indication signal.

[0056] When the processor outputs the third product status signal, a self-test error indication signal is output through the second logic AND gate 144 (specifically, the self-test phase is 1 and the low level output by the processor 12 is ANDed to 0, indicating self-test failure).

[0057] The box missing package detection device of this embodiment has the following beneficial effects:

[0058] First, the strip box missing detection device described in this embodiment has a self-diagnosis signal, is maintenance-free for life, does not need to be adjusted according to the brand, and does not have the situation of light decay and the like that affects the detection accuracy.

[0059] Second, the carton missing pack detection equipment described in this embodiment uses PLC to make real-time judgments on detection signals. When an abnormality occurs, a fault signal is automatically issued and a prompt is displayed on the GD display screen to facilitate maintenance workers to handle, thereby ensuring the detection effect and preventing missing packs of cigarettes from flowing into subsequent workstations.

[0060] Third, the strip box lacking package detecting device described in this embodiment monitors the relevant sensors in the CT packaging process to avoid the occurrence of artificial lacking package phenomenon.

[0061] Fourthly, the entire detection mechanism of the strip box missing detection device described in this embodiment is compact and easy to modify and implement.

[0062] Fifth, the carton missing detection device described in this embodiment uses 10 customized sensor probes with intelligent detection functions and automatic gain adjustment to detect the status of carton cigarettes in the narrow space of the packaging machine, and the detection effect is accurate and reliable.

[0063] Embodiment 2

[0064] This embodiment provides a method for detecting a missing packet in a strip box, including:

[0065] The sensor strip detects the product package in the box and outputs a sensing signal;

[0066] receiving and analyzing the sensing signal to form a product package status signal for indicating the forming status of the product packages in the strip box;

[0067] According to the product package status signal, an indication signal corresponding to the product package status signal is generated.

[0068] The following will describe in detail the method for detecting missing packets in the box provided by this embodiment with reference to the accompanying drawings. Figure 6 , which is a flow chart of a method for detecting a missing package in a strip box in one embodiment. Figure 6 As shown, the strip box missing packet detection method specifically includes the following steps:

[0069] S61, sensing the product package in the bar box and outputting a sensing signal.

[0070] In this embodiment, the sensing signal includes a first sensing signal when the capacitive proximity detection probe is blocked and a second sensing signal when the capacitive proximity detection probe is not blocked.

[0071] S62, receiving and analyzing the sensing signal to form a product package status signal for indicating the molding status of the product packages in the strip box.

[0072] Specifically, when the number of received first sensing signals is consistent with the number of product packages in the full box, a first product package status signal is generated; the first product package status signal is used to indicate that the product packages in the full box are in the full package state;

[0073] When the number of received first sensing signals is inconsistent with the number of product packages when the box is full of packages, a second product status signal is generated; the second product status signal is used to indicate that the box is short of product packages;

[0074] When the number of received second sensing signals is consistent with the number of product packages in the full package box, a third product status signal is generated; the third product status signal is used to indicate an empty package state.

[0075] S63, generating an indication signal corresponding to the product package status signal one by one according to the product package status signal.

[0076] Specifically, the step of forming an indication signal corresponding to the product package status signal in a one-to-one manner according to the product package status signal in S63 includes:

[0077] When the first product package status signal is received, a full package indication signal corresponding to the first product package status signal is generated; when the second product package status signal is received, a missing package indication signal corresponding to the second product package status signal is generated; when the third product status signal is received, a self-test error indication signal corresponding to the third product status signal is generated.

[0078] This embodiment also provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the following is achieved: Figure 6 The method described.

[0079] At any possible level of technical detail combination, the present application may be a system, method and / or computer program product. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the present application.

[0080] Computer readable storage medium can be a tangible device that can hold and store instructions used by an instruction execution device. Computer readable storage medium can be, for example, (but not limited to) an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination thereof. More specific examples (non-exhaustive list) of computer readable storage medium include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, for example, a punch card or a convex structure in a groove on which instructions are stored, and any suitable combination thereof. The computer readable storage medium used here is not interpreted as a transient signal itself, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagated by a waveguide or other transmission medium (for example, a light pulse by an optical fiber cable), or an electrical signal transmitted by a wire.

[0081] The computer-readable program described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device through a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, optical fiber transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives a computer-readable program instruction from the network, and forwards the computer-readable program instruction for storage in the computer-readable storage medium in each computing / processing device. The computer program instruction for performing the operation of this application can be an assembly instruction, an instruction set architecture (ISA) instruction, a machine instruction, a machine-related instruction, a microcode, a firmware instruction, a state setting data, an integrated circuit configuration data, or a source code or object code written in any combination of one or more programming languages, wherein the programming language includes an object-oriented programming language, such as Smalltalk, C++, etc., and a procedural programming language, such as "C" language or similar programming language. Computer readable program instructions can be executed completely on a user's computer, partially on a user's computer, as an independent software package, partially on a user's computer, partially on a remote computer, or completely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (e.g., using an Internet service provider to connect through the Internet). In certain embodiments, by using the state information of computer readable program instructions to personalize electronic circuits, such as programmable logic circuits, field programmable gate arrays (FPGAs) or programmable logic arrays (PLAs), the electronic circuits can execute computer readable program instructions, thereby realizing various aspects of the present application.

[0082] The protection scope of the box lack detection method described in the present invention is not limited to the execution order of the steps listed in this embodiment. All solutions implemented by adding, reducing or replacing steps in the prior art based on the principles of the present invention are included in the protection scope of the present invention.

[0083] The present invention also provides a strip box package missing detection device, and the strip box package missing detection device can implement the strip box package missing detection method described in the present invention, but the implementation device of the strip box package missing detection method described in the present invention includes but is not limited to the structure of the strip box package missing detection device listed in this embodiment, and all structural deformations and replacements of the prior art made according to the principles of the present invention are included in the protection scope of the present invention.

[0084] In summary, the device, method and computer-readable storage medium for detecting missing packages in a cartridge of the present invention have the following beneficial effects:

[0085] First, the present invention has a self-diagnosis signal, is maintenance-free for life, does not need to be adjusted according to the brand, and does not have the situation of light decay and the like that affects the detection accuracy.

[0086] Second, the present invention uses PLC to make real-time judgment on the detection signal. When an abnormality occurs, a fault signal is automatically issued and a prompt is displayed on the GD display screen to facilitate maintenance workers to handle it, thereby ensuring the detection effect and preventing the missing packs of cigarettes from flowing into subsequent workstations.

[0087] Third, the present invention monitors the relevant sensors in the CT packaging process to avoid the occurrence of artificial package shortage.

[0088] Fourthly, the whole set of detection mechanism of the present invention is compact and easy to modify and implement.

[0089] Fifth, the present invention uses 10 customized sensor probes with intelligent detection functions and automatic gain adjustment to detect the status of cigarette cartons in the narrow space of the packaging machine, and the detection effect is accurate and reliable. The present invention effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0090] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A strip box missing detection device, characterized in that: include: A sensor for sensing a product package in a strip box and outputting a sensing signal; the sensor is composed of a plurality of capacitive proximity detection probes arranged in a combined manner; the arrangement shape of the capacitive proximity detection probes matches the arrangement shape of the product package in the strip box; the sensing signal includes a first sensing signal of the capacitive proximity detection probe being blocked and a second sensing signal of the capacitive proximity detection probe being not blocked; A processor, used for receiving and analyzing the sensing signal to form a product package status signal for indicating the forming status of the product package in the strip box; comprising: When the number of signals of the first sensing signal received by the processor is consistent with the number of product packages when the box is full, a first product package status signal is generated; the first product package status signal is used to indicate that the box is full of product packages; When the number of signals of the first sensing signal received by the processor is inconsistent with the number of product packages when the box is full of packages, a second product status signal is generated; the second product status signal is used to indicate that the box is short of product packages; When the number of signals of the second sensing signal received by the processor is consistent with the number of product packages in the full package box, a third product status signal is generated; the third product status signal is used to indicate an empty package state; The logic controller is used to generate an indication signal corresponding to the product package status signal according to the product package status signal.

2. The device for detecting missing packages of a cartridge according to claim 1, characterized in that: When the logic controller receives the first product package status signal, it generates a full package indication signal corresponding to the first product package status signal; when the logic controller receives the second product package status signal, it generates a missing package indication signal corresponding to the second product package status signal; when the logic controller receives the third product status signal, it generates a self-check error indication signal corresponding to the third product status signal.

3. The device for detecting missing packs in a cartridge according to claim 1, characterized in that: The logic controller includes a falling edge detector connected to the processor, a first logic AND gate connected to the falling edge detector, a trigger connected to the first logic AND gate, a shift register connected to the trigger, and a second logic AND gate connected to the processor; When the processor outputs the first product package status signal, the falling edge detector does not detect a falling edge, and the trigger is triggered through the first logic AND gate to inject 1 into the shift register, and a full package indication signal is output after the shift register is shift-driven; When the processor outputs the second product status signal, the falling edge detector detects a falling edge, and the first logic AND gate does not trigger the trigger, so that 0 is injected into the shift register, and the shift register outputs a missing packet indication signal after shift driving; When the processor outputs the third product status signal, a self-check error indication signal is output through the second logic AND gate.

4. A method for detecting missing packages in a strip box, characterized in that: include: The sensor strip detects the product package in the box and outputs a sensing signal; The sensor is composed of a plurality of capacitive proximity detection probes arranged in a combined manner; the arrangement shape of the capacitive proximity detection probes matches the arrangement shape of the product packages in the box; the sensing signal includes a first sensing signal of the capacitive proximity detection probes being blocked and a second sensing signal of the capacitive proximity detection probes being not blocked; Receive and analyze the sensing signal to form a product package status signal for indicating the forming state of the product packages in the strip box; including: when the number of signals of the first sensing signal received by the processor is consistent with the number of product packages when the strip box is full, a first product package status signal is formed; the first product package status signal is used to indicate that the product packages in the strip box are in a full package state; when the number of signals of the first sensing signal received by the processor is inconsistent with the number of product packages when the strip box is full, a second product status signal is formed; the second product status signal is used to indicate that the product packages in the strip box are in a missing package state; when the number of signals of the second sensing signal received by the processor is consistent with the number of product packages when the strip box is full, a third product status signal is formed; the third product status signal is used to indicate an empty package state; According to the product package status signal, an indication signal corresponding to the product package status signal is generated.

5. The method for detecting missing packets in a cartridge according to claim 4, characterized in that: The step of forming an indication signal corresponding to the product package status signal in a one-to-one manner according to the product package status signal comprises: When the first product package status signal is received, a full package indication signal corresponding to the first product package status signal is generated; when the second product package status signal is received, a missing package indication signal corresponding to the second product package status signal is generated; when the third product status signal is received, a self-test error indication signal corresponding to the third product status signal is generated.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method for detecting the lack of a package in a cartridge as described in any one of claims 4 to 5 is implemented.

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