A QR code tracing system with reminder alarm function

Abstract

The invention relates to the technical field of two-dimensional code tracing, and discloses a two-dimensional code tracing system with a reminder alarm function, comprising a sending unit, a printing unit, a detection unit, a central unit, an alarm unit, a proofreading unit, an intermediate unit, an intelligent terminal and a delivery unit. The sending unit is used for a head office to send the two-dimensional code, the printing unit prints the two-dimensional code on a pallet, the detection unit calculates a determination time PS and a reissue time BS, the central unit receives the determination time PS and the reissue time BS calculated by the detection unit and compares them with the real-time working time SS inside the central unit, and the alarm unit gives an alarm. When the real-time working time SS of the invention exceeds the determination time PS, an alarm is given to avoid the two-dimensional code being sent again and causing a duplicate code, and avoid the duplicate code being sent again due to the determination that the two-dimensional code is not used, so that the overall two-dimensional code sending process is more accurate and the duplicate code is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of two-dimensional code tracing, and more specifically to a two-dimensional code tracing system with a reminder alarm function. Background Art

[0002] QR code traceability is a technology and method that uses QR codes to record product raw materials, production, inspection, packaging and transportation, sales and agency, as well as user and after-sales information, so that all product information can be traced from the entire product life cycle, the authenticity can be checked, the source can be traced, and system management can be carried out;

[0003] When using QR codes nowadays, the head office first sends the QR code to the printing company. After receiving the QR code, the printing company prints it on the packaging box. After printing, the printing company clicks on the QR code to ship out of the warehouse. At this time, the product will be sent out, thus completing the overall QR code usage process. However, there are two problems in this process. The first is that when it is sent to the printing company, if the QR code is not clicked for shipment, the system will default to the head office not sending the QR code, and the head office will send the QR code again, which will cause duplicate codes. Second, if some QR codes have printing or cutting problems, part of them will stay in the warehouse for a period of time. At this time, the head office system will think that they have not been used and will reissue the QR code. This will cause duplicate codes after the inventory products are shipped out. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the implementation regulations of the present invention provide a two-dimensional code tracing system with a reminder alarm function to solve the technical problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a two-dimensional code tracing system with a reminder alarm function, comprising a sending unit, a printing unit, a detection unit, a central unit, an alarm unit, a proofreading unit, an intermediate unit, an intelligent terminal and a delivery unit, wherein the sending unit is used by the head office to send the two-dimensional code, the printing unit is used by the printing company to receive the two-dimensional code and print the two-dimensional code on the pallet, the detection unit calculates the judgment time PS and the reissue time BS, the central unit receives the judgment time PS and the reissue time BS calculated by the detection unit and compares them with the real-time working time SS inside, the alarm unit receives the alarm instruction sent by the central unit and gives an alarm, the proofreading unit is used to proofread the two-dimensional code printing process in the printing unit, the intermediate unit is used to receive the two-dimensional code reissued by the sending unit, the intelligent terminal is used by the management personnel for management and viewing, and the delivery unit is used by the printing company to click the two-dimensional code to deliver the goods after printing;

[0006] The detection unit is used to calculate the judgment time PS required for the printing company to click the QR code after receiving the QR code and to send out the goods. The calculation formula of the judgment time PS is: Where n is the total number of times that the QR code printing and delivery work was performed without any problems in the previous day, i means that the current QR code printing and delivery work is the i-th time, SJ i is the time required for the i-th two-dimensional code printing and delivery work, BC is the supplementary working time, and the detection unit sends the calculated determination time PS to the central unit.

[0007] In a preferred embodiment, the printing unit sends the real-time working time SS when the printing company receives the QR code of the head office but does not click on the delivery to the central unit. The central unit receives the real-time working time SS and compares it with the judgment time PS. When the real-time working time SS ≤ the judgment time PS, the central unit does not send any instructions. When the real-time working time SS > the judgment time PS, the central unit sends an alarm instruction to the alarm unit.

[0008] In a preferred embodiment, the detection unit calculates the reissue time BS, and the calculation formula of the reissue time BS is: Where m is the total number of times the printing unit sent out without clicking the QR code during printing work on the previous day, α means that this is the αth time the QR code is not clicked, and BF α is the time required for the αth time that the two-dimensional code is not clicked and the reissue time BS calculated by the detection unit is greater than the determination time PS.

[0009] In a preferred embodiment, the detection unit sends the calculated reissue time BS to the central unit, the central unit receives the reissue time BS and compares it with the real-time working time SS, when the judgment time PS≤real-time working time SS≤reissue time BS, the central unit keeps sending alarm instructions to the alarm unit, when the real-time working time SS>reissue time BS, the central unit sends a problem instruction to the alarm unit, and the central unit sends a reissue instruction to the issuing unit.

[0010] In a preferred embodiment, the alarm unit receives an alarm instruction and emits a sound to alarm. When the alarm unit receives a problem instruction, the alarm unit maintains an alarm state, and the alarm unit doubles the frequency of the sound emitted. When the sending unit receives a reissue instruction, the sending unit reissues the QR code that issued the alarm, and the sending unit sends the QR code to the intermediate unit. The intermediate unit receives the QR code, and the QR code in the intermediate unit is sent to the printing unit after the staff clicks it. When the QR code in the intermediate unit is not clicked, it will not be automatically sent to the printing unit, and the QR code in the intermediate unit can be deleted.

[0011] In a preferred embodiment, when the alarm unit receives a problem instruction, the alarm unit will issue a verification instruction to the smart terminal. At this time, the on-site manager holding the smart terminal will go to the site for verification. When the product is shipped normally without clicking the QR code, the on-site manager will delete the QR code in the intermediate unit. When there is a problem with the QR code and the product cannot be shipped, the on-site manager and staff will select the QR code in the intermediate unit and perform normal printing work. When printing, the detection unit and the central unit are in normal working condition.

[0012] In a preferred embodiment, the proofreading unit is used to proofread the two-dimensional code printing process in the printing unit, and the proofreading unit includes a printing module and a cutting module. The printing module is used to proofread whether the printing unit prints the two-dimensional code completely. When the printing module detects that the printing of the two-dimensional code is incomplete, the proofreading unit sends an adjustment instruction to the sending unit and the central unit. The cutting module is used to proofread whether the printing unit cuts the two-dimensional code completely. When the cutting module detects that the two-dimensional code is incomplete after cutting, the proofreading unit sends an adjustment instruction to the sending unit and the central unit. When the sending unit receives the adjustment instruction, the sending unit does not reissue the two-dimensional code, and the central unit receives the adjustment instruction, and the central unit does not send an alarm instruction or a problem instruction.

[0013] In a preferred embodiment, when the printing module and the cutting module in the proofreading unit respectively detect that the unit two-dimensional code is completely printed and cut, the proofreading unit sends a normal instruction to the sending unit and the central unit. When the sending unit receives the normal instruction, it normally performs the reissue of the two-dimensional code. When the central unit receives the normal instruction, the central unit calculates the determination time PS and the reissue time BS, and the central unit normally sends the alarm instruction and the problem instruction.

[0014] In a preferred embodiment, when the QR code issued by the issuing unit is printed in the printing unit, the printing unit prints the QR code on a pallet, the QR code on each pallet corresponds to the product on the pallet, and the printing unit ships the printed products by pallet.

[0015] Technical effects and advantages of the present invention:

[0016] 1. When the overall QR code is issued, the present invention detects whether the printing company clicks on the delivery. When the real-time working time SS exceeds the judgment time PS, an alarm is issued to avoid the QR code being issued again and causing duplicate codes. When the QR code has problems due to printing or detection, proofreading is performed to solve the problems in time to avoid duplicate codes caused by issuing the QR code again due to the judgment that the QR code is not used, so that the overall QR code issuance process is more accurate and duplicate codes are avoided;

[0017] 2. The present invention calculates the reissue time BS. If the reissue time BS> the judgment time PS, it means that the current staff cannot promptly process the delivery after the alarm is raised. In this case, the alarm will be raised to avoid the on-site long-term inability to process and affect the overall work process. When there is a problem with the use of the initially issued QR code, the reissued QR code can be found in the intermediate unit for use, rather than directly reissued, to avoid duplicate codes. The QR code in the intermediate unit can be deleted, and will not affect the issuing unit.

[0018] 3. The present invention detects the printing and cutting processes of the QR code. When incomplete printing and cutting are detected, the QR code will not be reissued and no alarm will be issued. When the QR code is completely printed and cut, the normal judgment time PS and reissue time BS will be calculated, and the central unit will normally send alarm instructions and problem instructions to avoid repeated reissue of the QR code. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall system composition of the present invention. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The two-dimensional code tracing system with a reminder alarm function involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0021] Reference Figure 1The present invention provides a two-dimensional code tracing system with a reminder alarm function, including a sending unit, a printing unit, a detection unit, a central unit, an alarm unit, a proofreading unit, an intermediate unit, an intelligent terminal and a warehouse-out unit. The sending unit is used by the head office to send the two-dimensional code, the printing unit is used by the printing company to receive the two-dimensional code and print the two-dimensional code on the pallet, the detection unit calculates the judgment time PS and the reissue time BS, the central unit receives the judgment time PS and the reissue time BS calculated by the detection unit and compares them with the real-time working time SS inside it, the alarm unit receives the alarm instruction sent by the central unit and issues an alarm, the proofreading unit is used to proofread the two-dimensional code printing process in the printing unit, the intermediate unit is used to receive the two-dimensional code reissued by the sending unit, the intelligent terminal is used by the management personnel to manage and view, and the warehouse-out unit is used by the printing company to click the two-dimensional code to ship out after printing.

[0022] In the embodiment of the present application, when the overall QR code is being issued, the present application first detects whether the printing company has clicked on the delivery. When the real-time working time SS exceeds the determination time PS, an alarm will be issued to avoid the QR code being issued again and causing duplicate codes. In addition, when problems occur in the QR code due to printing or detection, proofreading will be performed to solve the problems in a timely manner to avoid duplicate codes caused by issuing the QR code again due to the determination that the QR code has not been used. This makes the overall QR code issuance process more accurate and avoids duplicate codes.

[0023] Furthermore, the detection unit is used to calculate the judgment time PS required for the printing company to click the QR code after receiving the QR code and to release the product. The calculation formula of the judgment time PS is: Where n is the total number of times that the QR code printing and delivery work was performed without any problems in the previous day, i means that the current QR code printing and delivery work is the i-th time, SJ i is the time required for the i-th QR code printing and delivery work, BC is the supplementary working time, the detection unit sends the calculated judgment time PS to the central unit, the printing unit sends the real-time working time SS when the printing company receives the QR code of the head office but does not click on delivery to the central unit, the central unit receives the real-time working time SS and compares it with the judgment time PS, when the real-time working time SS ≤ the judgment time PS, the central unit does not send any instructions, when the real-time working time SS>the judgment time PS, the central unit sends an alarm instruction to the alarm unit.

[0024] In the embodiment of the present application, after the printing unit receives the QR code, the printing unit will extract the real-time working time SS when the printing company receives the QR code of the head office and has not clicked on the delivery. The real-time working time SS indicates the time when the QR code has not been clicked on for delivery. Therefore, when the real-time working time SS is too long, there is a situation where the delivery is forgotten to be clicked. The present application will calculate the judgment time PS. The judgment time PS adopts the sum of the time average value used when no problem occurs and the supplementary working time BC. The specific value of the supplementary working time BC can be set by the management personnel. This is to avoid the situation where some staff members work slowly and the alarm occurs repeatedly when the time average value is used as the judgment standard alone. Therefore, the present application compares the real-time working time SS with the judgment time PS. When the real-time working time SS>judgment time PS, it is in a state of not clicking on the delivery for a long time, and an alarm is issued to remind the staff to click on the delivery in time to avoid the situation of duplicate codes.

[0025] Furthermore, the detection unit calculates the reissue time BS, and the calculation formula of the reissue time BS is: Wherein, m is the total number of times the two-dimensional code was sent out without being clicked when the printing unit performed printing work on the previous day, α indicates that the current is the αth time the two-dimensional code was sent out without being clicked, BFα is the time required for the αth time the two-dimensional code was sent out without being clicked, the reissue time BS calculated by the detection unit is greater than the judgment time PS, the reissue time BS calculated by the detection unit is greater than the judgment time PS, the detection unit sends the calculated reissue time BS to the central unit, the central unit receives the reissue time BS and compares it with the real-time working time SS, when the judgment time PS≤real-time working time SS≤reissue time BS, the central unit keeps sending an alarm instruction to the alarm unit, when the real-time working time SS is greater than the reissue time BS, the central unit sends a problem instruction to the alarm unit, and the central unit sends a reissue instruction to the issuing unit.

[0026] In the embodiment of the present application, when the real-time working time SS is greater than the judgment time PS, only an alarm will be issued to remind the staff to click on the delivery order in time. However, when the QR code is at the bottom, there is a situation where the QR code is lost or cannot be used. Therefore, the present application will calculate the reissue time BS. The reissue time BS is greater than the judgment time PS, which means that the current staff cannot carry out the delivery process in time after the alarm is issued. At this time, the real-time working time SS is greater than the reissue time BS. Therefore, it is processed in time to avoid long-term processing on site, which affects the overall work process. When the judgment time PS≤real-time working time SS≤reissue time BS, although the real-time working time SS exceeds the judgment time PS, it has not yet reached the reissue time BS. The alarm state is maintained to remind the staff to process it in time.

[0027] Furthermore, the alarm unit receives an alarm instruction and emits a sound to alarm. When the alarm unit receives a problem instruction, the alarm unit maintains an alarm state, and the alarm unit doubles the frequency of the sound emitted. When the sending unit receives a reissue instruction, the sending unit reissues the QR code that issued the alarm, and the sending unit sends the QR code to the intermediate unit. The intermediate unit receives the QR code, and the QR code in the intermediate unit is sent to the printing unit after the staff clicks it. When the QR code in the intermediate unit is not clicked, it will not be automatically sent to the printing unit, and the QR code in the intermediate unit can be deleted. When the alarm unit receives a problem instruction, the alarm unit will issue a verification instruction to the smart terminal. At this time, the on-site manager holding the smart terminal goes to the site for verification. When the product is shipped normally without clicking the QR code, the on-site manager deletes the QR code in the intermediate unit. When there is a problem with the QR code and the product cannot be shipped, the on-site manager and the staff select the QR code in the intermediate unit and perform normal printing. When printing, the detection unit and the central unit are in normal working condition.

[0028] In the embodiment of the present application, when the alarm unit sounds an alarm, a sound alarm will be sounded to remind the staff to handle it. When the instruction received by the alarm unit changes from an alarm instruction to a problem instruction, it is now a state where the item has not been clicked on for too long to be shipped out of the warehouse. Therefore, the frequency of the sound emitted will be doubled, which is more likely to attract the attention of the staff. In this state, the on-site manager's smart terminal will receive a reminder, so he can go directly to the site to check, which is convenient for timely processing. At this time, the central unit sends a reissue instruction to the lower unit. When the lower unit reissues it, it will send the QR code to the intermediate unit. The intermediate unit After receiving the QR code, it will not be printed and used directly, but will wait for the staff and management personnel to process it to avoid duplicate codes when it is printed directly. The management unit can find the QR code that has been issued again in the intermediate unit. If there is a problem with the QR code that was initially issued, the reissued QR code can be found in the intermediate unit for use. If there is only a problem with the on-site work and there is no problem with the QR code, the QR code in the intermediate unit can be deleted at this time, which will not affect the issuing unit. Deleting the QR code in the intermediate unit can avoid complicated use due to the large amount of data in the intermediate unit.

[0029] Reference Figure 1The proofreading unit is used to proofread the printing process of the two-dimensional code in the printing unit, and the proofreading unit includes a printing module and a cutting module. The printing module is used to proofread whether the printing unit is complete when printing the two-dimensional code. When the printing module detects that the printing of the two-dimensional code is incomplete, the proofreading unit sends an adjustment instruction to the sending unit and the central unit. The cutting module is used to proofread whether the printing unit is complete when cutting the two-dimensional code. When the cutting module detects that the two-dimensional code is incomplete after cutting, the proofreading unit sends an adjustment instruction to the sending unit and the central unit. When the sending unit receives the adjustment instruction, the sending unit The unit does not reissue the QR code, and the central unit receives the adjustment instruction. The central unit does not send the alarm instruction and the problem instruction. When the printing module and the cutting module in the proofreading unit respectively detect that the unit QR code is printed and cut completely, the proofreading unit sends a normal instruction to the sending unit and the central unit. When the sending unit receives the normal instruction, it reissues the QR code normally. When the central unit receives the normal instruction, it calculates the determination time PS and the reissue time BS, and the central unit sends the alarm instruction and the problem instruction normally.

[0030] In the embodiment of the present application, some problems are inevitable when the two-dimensional code is being printed and cut. When problems occur, the real-time working time SS will be lengthened. Therefore, the present application sets a printing module and a cutting module in the proofreading unit to detect the printing process and the cutting process of the two-dimensional code respectively. When the printing module and the cutting module detect incomplete printing and incomplete cutting, the real-time working time SS at this time will be longer. If the real-time working time SS is normally used for comparison and alarm in this case, the probability of an alarm is very high, and even the normal reissue of the two-dimensional code will occur, which will cause a burden to the issuing unit. Therefore, when the present application detects incomplete printing and incomplete cutting, the reissue of the two-dimensional code will not be performed, and no alarm will be issued. When the two-dimensional code is completely printed and cut, the normal judgment time PS and reissue time BS will be calculated, and the central unit will normally send alarm instructions and problem instructions.

[0031] Furthermore, when the two-dimensional code sent by the sending unit is printed in the printing unit, the printing unit prints the two-dimensional code on the pallet, the two-dimensional code on each pallet corresponds to the product on the pallet, and the printing unit ships the printed products by pallet.

[0032] In the embodiment of the present application, the product is in pallets. Therefore, when tracing through the QR code, the pallet where the product is located can be directly located, and the problems that arise can be found and understood in time, thereby improving overall work efficiency.

[0033] The above embodiments can be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The units and algorithm steps of each example described in the embodiment can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0034] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0035] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0036] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A QR code tracing system with reminder alarm function, characterized in that: It includes a sending unit, a printing unit, a detection unit, a central unit, an alarm unit, a proofreading unit, an intermediate unit, an intelligent terminal and a delivery unit. The sending unit is used for the head office to send the two-dimensional code. The printing unit is used for the printing company to receive the two-dimensional code and print the two-dimensional code on the pallet. The detection unit calculates the judgment time PS and the reissue time BS. The central unit receives the judgment time PS and the reissue time BS calculated by the detection unit and compares them with the real-time working time SS inside it. The alarm unit receives the alarm instruction sent by the central unit and gives an alarm. The proofreading unit is used to proofread the two-dimensional code printing process in the printing unit. The intermediate unit is used to receive the two-dimensional code reissued by the sending unit. The intelligent terminal is used for management personnel to manage and view. The delivery unit is used for the printing company to click the two-dimensional code to deliver the goods after printing. The detection unit is used to calculate the judgment time PS required for the printing company to click the QR code after receiving the QR code and to send out the goods. The calculation formula of the judgment time PS is: Where n is the total number of times that the QR code printing and delivery work was performed without any problems in the previous day, i means that the current QR code printing and delivery work is the i-th time, SJ i is the time required for the i-th two-dimensional code printing and delivery work, BC is the supplementary working time, and the detection unit sends the calculated determination time PS to the central unit.

2. A two-dimensional code tracing system with a reminder alarm function according to claim 1, characterized in that: The printing unit sends the real-time working time SS when the printing company receives the QR code of the head office but does not click on the delivery to the central unit. The central unit receives the real-time working time SS and compares it with the judgment time PS. When the real-time working time SS ≤ the judgment time PS, the central unit does not send any instructions. When the real-time working time SS > the judgment time PS, the central unit sends an alarm instruction to the alarm unit.

3. A two-dimensional code tracing system with a reminder alarm function according to claim 2, characterized in that: The detection unit calculates the reissue time BS, and the calculation formula of the reissue time BS is: Where m is the total number of times the printing unit sent out the goods without clicking on the QR code when printing work was performed on the previous day, α indicates that the current time is the αth time the QR code is sent out without clicking on it, BF. is the time required for the αth time the QR code is sent out without clicking on it, and the reissue time BS calculated by the detection unit is greater than the judgment time PS.

4. A two-dimensional code tracing system with a reminder alarm function according to claim 3, characterized in that: The detection unit sends the calculated reissue time BS to the central unit, the central unit receives the reissue time BS and compares it with the real-time working time SS, when the judgment time PS≤real-time working time SS≤reissue time BS, the central unit keeps sending alarm instructions to the alarm unit, when the real-time working time SS>reissue time BS, the central unit sends a problem instruction to the alarm unit, and the central unit sends a reissue instruction to the issuing unit.

5. A two-dimensional code tracing system with a reminder alarm function according to claim 4, characterized in that: The alarm unit receives an alarm instruction and emits a sound to alarm. When the alarm unit receives a problem instruction, the alarm unit maintains the alarm state, and the alarm unit doubles the frequency of the sound emitted. When the sending unit receives a reissue instruction, the sending unit reissues the QR code that issued the alarm, and the sending unit sends the QR code to the intermediate unit. The intermediate unit receives the QR code, and the QR code in the intermediate unit is sent to the printing unit after the staff clicks it. When the QR code in the intermediate unit is not clicked, it will not be automatically sent to the printing unit, and the QR code in the intermediate unit can be deleted.

6. A two-dimensional code tracing system with a reminder alarm function according to claim 4, characterized in that: When the alarm unit receives a problem instruction, the alarm unit will issue a verification instruction to the smart terminal. At this time, the on-site manager holding the smart terminal will go to the site for verification. When the product is shipped normally but the QR code is not clicked to ship out of the warehouse, the on-site manager will delete the QR code in the middle unit. When there is a problem with the QR code and the product cannot be shipped out of the warehouse, the on-site manager and staff will select the QR code in the middle unit and perform normal printing work. When printing, the detection unit and the central unit are in normal working condition.

7. A two-dimensional code tracing system with a reminder alarm function according to claim 1, characterized in that: The proofreading unit is used to proofread the two-dimensional code printing process in the printing unit, and the proofreading unit includes a printing module and a cutting module. The printing module is used to proofread whether the printing unit is complete when printing the two-dimensional code. When the printing module detects that the printing of the two-dimensional code is incomplete, the proofreading unit sends an adjustment instruction to the sending unit and the central unit. The cutting module is used to proofread whether the printing unit is complete when cutting the two-dimensional code. When the cutting module detects that the two-dimensional code is incomplete after cutting, the proofreading unit sends an adjustment instruction to the sending unit and the central unit. When the sending unit receives the adjustment instruction, the sending unit does not reissue the two-dimensional code, and the central unit receives the adjustment instruction, and the central unit does not send an alarm instruction or a problem instruction.

8. A two-dimensional code tracing system with a reminder alarm function according to claim 7, characterized in that: When the printing module and the cutting module in the proofreading unit respectively detect that the two-dimensional code is printed and cut completely, the proofreading unit sends a normal instruction to the sending unit and the central unit. When the sending unit receives the normal instruction, it reissues the two-dimensional code normally. When the central unit receives the normal instruction, it calculates the determination time PS and the reissue time BS, and the central unit sends the alarm instruction and the problem instruction normally.

9. A two-dimensional code tracing system with a reminder alarm function according to claim 1, characterized in that: When the two-dimensional code sent by the sending unit is printed in the printing unit, the printing unit prints the two-dimensional code on the pallet, the two-dimensional code on each pallet corresponds to the product on the pallet, and the printing unit ships the printed products by pallet.

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