CN114137866B - Intelligent goods shelf fool-proof detection system and management method - Google Patents
Intelligent goods shelf fool-proof detection system and management method Download PDFInfo
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Abstract
The invention relates to the technical field of shelf management, in particular to an intelligent shelf foolproof detection system and a management method, comprising a shelf body, and a detection module and a lighting module which are arranged on the shelf body; the intelligent terminal comprises an identification module for identifying material information and an input module for inputting the material information; the control module comprises an MCU, a serial-parallel conversion circuit and a detection circuit which are electrically connected in sequence, wherein the serial-parallel conversion circuit comprises a plurality of shift registers which are cascaded, and each shift register is electrically connected with a plurality of detection circuits. The intelligent shelf fool-proof detection system provided by the invention consists of a shelf body and each module, and is detected one by one through the serial-parallel conversion circuit and the detection circuit, so that the problem of signal crosstalk can be avoided.
Description
Technical Field
The invention relates to the technical field of shelf management, in particular to an intelligent shelf foolproof detection system and a management method.
Background
With the progress of China's science and technology, the development of logistics industry becomes very important to how to efficiently manage warehouses. Particularly, with the continuous development of enterprise scale, the types and the quantity of materials in a warehouse are continuously increased, the frequency of warehouse in and warehouse out is greatly increased, warehouse management operation becomes very complicated and diversified, and the traditional manual management operation mode and data acquisition mode can not meet the requirements of quick and accurate warehouse management, so that the working efficiency is seriously affected.
At present, an intelligent shelf management system commonly used adopts an RFID technology, such as a patent with application number of CN201910192796.8 (publication date of 2019, 07 and 12 days), however, the management system has the following disadvantages: 1. the RFID system has radiation and has adverse effect on human body; 2. the phenomenon of RFID signal interference is common, threatens the stability of data, and especially when the materials on the goods shelves are numerous, data interference easily occurs between the radio frequency generator and the RFID tag, so that the materials are difficult to be identified and utilized for the second time, and errors easily occur when management operation is carried out.
Disclosure of Invention
In order to solve the defect that the management of the intelligent goods shelf is easy to make mistakes in the prior art, the invention provides an intelligent goods shelf foolproof detection system, which comprises: the storage rack comprises a plurality of storage rack bodies with at least one storage position, and at least one group of detection modules and lighting modules arranged on each storage position; the intelligent terminal comprises an identification module for identifying material information and an input module for inputting the material information; the control module comprises an MCU, a serial-parallel conversion circuit and at least one group of detection circuits which are electrically connected in sequence, wherein the serial-parallel conversion circuit comprises a plurality of shift registers which are cascaded, and each shift register is electrically connected with at least one group of detection circuits.
In one embodiment, the detection module includes a photosensor disposed on each bin, the photosensor being electrically connected to the detection circuit for detecting the presence of material on the target bin.
In one embodiment, the detection circuit includes an infrared emitting diode D27, a phototransistor Q11, a resistor R121, a resistor R122, a resistor R123, a resistor R151, a triode Q1, and a triode Q21; the base electrode of the triode Q21 is connected with the serial-parallel conversion circuit through a resistor R161, the emitter electrode is grounded, and the collector electrode is connected with the emitter electrode of the photoelectric triode Q11; the infrared emission tube D27 is connected with a power supply through a resistor R121, one end of a collector electrode of the triode Q11 is connected with a base electrode of the triode Q1 through a resistor R151, and the other end of the collector electrode is connected with the power supply through a resistor R122; the base electrode of the triode Q1 is also connected with the collector electrode through a resistor R123, the collector electrode is also connected with a power supply, and the emitter electrode is connected with the feedback bus of the MCU.
In an embodiment, the clock of each shift register is connected to the IO port of the MCU, the data input end of the first shift register is also connected to the IO port of the MCU, and the input end of the last shift register of the two adjacent shift registers is correspondingly connected to the last output end of the previous shift register one by one, so that the shift registers serially input and output data signals in parallel.
In an embodiment, the device further comprises a buzzer arranged on the control module, wherein the buzzer is used for giving an audible alarm for the materials which are misplaced by the misplaced materials.
The invention also provides an intelligent goods shelf fool-proof management method, which adopts the intelligent goods shelf fool-proof detection system, and comprises a blanking guiding step of taking materials out of the goods shelf and a feeding guiding step of putting the materials on the corresponding goods shelf.
In an embodiment, the feeding guiding step includes:
s11, a warehouse manager inputs or invokes a receipt with required material information through an input module on the intelligent terminal;
s12, the intelligent terminal feeds the information back to the server, the server compares the database information which is consistent with the material information on the material receiving bill, and according to the database information, quickly finds all the warehouse positions which are closest to a warehouse manager and store the required materials, and simultaneously sends a signal to a lighting module on the warehouse positions, so that an indicator lamp of the warehouse position where the material on the material receiving bill is located is lighted;
s13, sequentially taking out materials from the warehouse positions which are lighted by the indicator lights by warehouse operators according to guidance;
s14, when the detection module on the bin detects that the materials on the bin are taken out, the state information of the materials on the bin, which are taken out, are synchronized to the server through the control module.
In an embodiment, the feeding guiding step includes:
s21, a warehouse manager scans materials through an upper identification module of the intelligent terminal to acquire material information;
s22, the intelligent terminal feeds information back to the server, and the server quickly finds the nearest empty bin position to the warehouse manager according to the database information consistent with the shelf information and sends a signal to the corresponding lighting module so that the indicator lamp of the nearest empty bin position to the warehouse manager flashes;
s23, placing the scanned materials on a storage position where the indicator lights are flashing by a warehouse manager according to guidance;
s24, when the detection module on the stock position detects that the stock position has materials, the state information of the materials in the stock position is synchronized to the server through the control module;
s25, after receiving the information, the server updates a server database, quickly finds out an empty bin closest to the bin where the material is just placed again, and causes an indicator light of the empty bin to flash through a lighting module, and a bin manager places the scanned material on the bin of the flash according to guidance;
s26, repeating the steps S23, S24 and S25 until all materials are put on the shelf.
In one embodiment, the detecting module in steps S14 and S24 detects whether the material exists on the bin position, which includes:
s141, in an initial state, the MCU inputs low level to all shift registers, all shift registers send out the same pulse number as at least one group of detection modules through IO ports of a data clock, so that the data output of the shift registers is completely initialized to be low level, and all detection modules are forbidden;
s142, when detection is started, the MCU inputs high level to the data input of the first shift register through the serial-parallel conversion circuit, then a pulse signal is sent through a clock line connected to the shift register to enable a first output interface of the first shift register to output high level, a first detection circuit is started, and other detection modules are kept disabled;
s143, when the opened detection module detects that materials exist on the library position, the detection circuit outputs a low level to the MCU through the feedback bus, and when the detection module detects that materials do not exist on the library position, the detection circuit outputs a high level to the MCU through the feedback bus, and the MCU records the state of the materials on the library position through the high level and the low level output by the feedback bus;
s144, then, the MCU outputs low level to the data input end of the first shift register, and the clock line connected to the shift register sends a pulse to enable the original detection module to be disabled, the next detection module to be enabled, and other detection modules to be disabled;
s145, in a step S143, the next detection module continues to detect whether materials exist on the corresponding library position and records the materials;
s146, repeating the steps S143 to S145 until all the detection circuits finish one-time detection and record the detection state;
and S147, repeating the steps S142-S146, and when the consistent material state is detected for a plurality of times, confirming that the material state is the determined material state by the MCU, and uploading the state information of the material to the server for storage.
In an embodiment, the feeding guiding step further includes: when the detection module of the storage position of the flash lamp does not detect that the material is put in within a certain time, automatically ending the feeding guiding step; when a bin manager puts materials into an empty bin without a flashing lamp, the detection module at the position detects that the materials are put into the bin, information is fed back to the server through the control module, if the bin is compared with the position of the bin which is not used for storing the materials by the server, the buzzer receives a signal and sends out an abnormal alarm so as to remind the bin manager that the materials need to be put into the correct position;
the blanking guiding step further comprises the following steps: when the warehouse manager takes out materials from the warehouse position without flashing lights, the detection module at the position detects that the materials are taken out, information is fed back to the server through the control module, if the server compares that the warehouse position is not the position for storing the materials, the buzzer receives a signal and can send out abnormal alarm so as to remind the warehouse manager that the materials need to be taken out from the correct position.
Based on the above, compared with the prior art, the intelligent shelf foolproof detection system provided by the invention is composed of a control module, a lighting module, a detection module and the like, only one group of detection modules do detection work each time through a serial-parallel conversion circuit and a detection circuit, and other detection modules do not work, so that the problem of signal crosstalk can not be generated.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
For a clearer description of embodiments of the invention or of the solutions of the prior art, the drawings that are needed in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the invention, and that other drawings can be obtained from them without inventive effort for a person skilled in the art; the positional relationships described in the drawings in the following description are based on the orientation of the elements shown in the drawings unless otherwise specified.
FIG. 1 is a circuit diagram of a detection circuit commonly known in the prior art;
FIG. 2 is a block diagram of a shelf detection system common in the prior art;
FIG. 3 is a block diagram of the intelligent shelf fool-proof detection system provided by the invention;
FIG. 4 is a block diagram of an intelligent shelf fool-proof detection system;
FIG. 5 is a diagram of the relationship between an intelligent shelf and a server, and between the intelligent shelf and an intelligent terminal;
FIG. 6 is a circuit diagram of a detection circuit;
FIG. 7 is a top three stage circuit diagram of a serial to parallel circuit;
FIG. 8 is a flow chart of a blanking guide step;
FIG. 9 is a flow chart of a loading guidance step;
FIG. 10 is a flow chart of the steps of the detection system.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention; the technical features designed in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that all terms used in the present invention (including technical terms and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs and are not to be construed as limiting the present invention; it will be further understood that terms used herein should be interpreted as having a meaning that is consistent with their meaning in the context of this specification and the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
With the development of logistics industry and enterprise scale, the convenient management requirement of the shelves of the warehouse becomes more and more important. The current common mode is a warehouse management system realized based on RFID technology; however, for materials densely stacked on warehouse shelves, the RFID signals are seriously interfered, and the stability of data is threatened, so that the management is inconvenient. At present, an intelligent goods shelf with a material taking and placing detection function and a lighting guide function is also provided, and the common implementation method is that an infrared transmitting tube is directly connected with a power supply to fixedly supply power, one end of a collector electrode of an infrared receiving triode is connected with the power supply through a resistor, and the other end of the collector electrode of the infrared receiving triode is directly connected with an IO port of an MCU (micro control Unit), as shown in figures 1 and 2; however, it has the following problems: the number of IO ports of one MCU is limited, and a large number of infrared photoelectric sensors cannot be connected, so that a plurality of MCUs are required to be connected to one total MCU in series to realize data exchange, and the workload of processing data by the main MCU is greatly increased. Secondly, the infrared photoelectric sensor needs to work all the time, which can lead to the increase of power consumption and thus the service life of the sensor, and meanwhile, all the infrared photoelectric sensors are simultaneously started to detect, and the infrared light signals of the infrared photoelectric sensor can be connected to the infrared receiving three-level tube of another storage position in series, so that the interference of the signals of the sensors of different storage positions is caused. In addition, the circuit board is limited in size, and if a large number of circuits are connected, the complexity of the size and the board distribution requirements of the circuits is greatly improved.
In view of the above drawbacks, the present invention provides an intelligent shelf fool-proof detection system, including: the storage rack comprises a plurality of storage rack bodies with at least one storage position, and at least one group of detection modules and lighting modules arranged on each storage position; the intelligent terminal comprises an identification module for identifying material information and an input module for inputting the material information; the control module comprises an MCU, a serial-parallel conversion circuit and at least one group of detection circuits which are electrically connected in sequence, wherein the serial-parallel conversion circuit comprises a plurality of shift registers which are cascaded, and each shift register is electrically connected with at least one group of detection circuits.
In specific implementation, as shown in fig. 3 and 4, the system includes a shelf body, a detection module, a lighting module, a control module, a server and an intelligent terminal. The storage rack body comprises at least one storage position, the storage position is used for placing related materials, the shape and the structure of the storage rack body and the storage position are not limited, and the storage rack body can be a multi-layer square rack, a multi-layer multi-grid square rack or a multi-layer round rack, a multi-layer oval rack and the like which are common in the prior art. Each bin is provided with a group of detection modules and a group of lighting modules, wherein the detection modules are used for identifying whether materials are stored on the bin, and an inductor can be selected according to actual requirements, for example, a photoelectric switch, a micro switch, a proximity switch, a Hall switch or a pressure sensor is adopted; the lighting module is used for guiding a warehouse manager to take and put materials on the correct warehouse position, so that the warehouse manager is generally an indicator light, and particularly an energy-saving LED lamp bead or lamp strip can be selected for reminding the warehouse manager to operate in a flashing mode or a mode of displaying different colors.
In addition, a plurality of groups of lighting modules and detection modules are electrically connected with the control module and used for transmitting signals, the control module is in communication connection with the server and the intelligent terminal, as shown in fig. 5, the control module corresponding to each goods shelf is connected to the server and the intelligent terminal through a router in wired or wireless connection, and therefore a complete goods shelf foolproof detection system with information interconnection is formed. Preferably, the intelligent terminal comprises an identification module for identifying material information and an input module for inputting the material information, so that a PC, a PDA, a smart phone or the like capable of realizing control operation can be selected.
The control module comprises an MCU, a serial-parallel conversion circuit and at least one group of detection circuits which are electrically connected in sequence, wherein the detection circuits are connected with the detection module. The serial-parallel conversion circuit comprises a plurality of shift registers which are cascaded, each shift register is electrically connected with at least one group of detection circuits, and the number of the shift registers and the number of the detection circuits are set according to the number of library bits on an actual shelf body.
Through the access of the serial-parallel conversion circuit, not only is only one group of detection circuits ensured to work each time, but also other detection circuits are forbidden, and the problem that signals between the detection circuits cannot generate crosstalk is ensured, so that the number of MCU (micro control units) can be greatly reduced, the cost is reduced, and the problems of large data processing capacity, complex circuit, multiple wiring, low response speed and high cost of the main MCU in the prior art are effectively solved.
Preferably, the shift register is of the type 74HC164.
Preferably, the detection module comprises a photoelectric sensor arranged on each bin, and the photoelectric sensor is electrically connected with the detection circuit and used for detecting whether the material exists on the target bin.
Preferably, the detection circuit comprises an infrared emission tube D27, a phototriode Q11, a resistor R121, a resistor R122, a resistor R123, a resistor R151, a triode Q1 and a triode Q21; the base electrode of the triode Q21 is connected with the serial-parallel conversion circuit through a resistor R161, the emitter electrode is grounded, and the collector electrode is connected with the emitter electrode of the photoelectric triode Q11; the infrared emission tube D27 is connected with a power supply through a resistor R121, one end of a collector electrode of the triode Q11 is connected with a base electrode of the triode Q1 through a resistor R151, and the other end of the collector electrode is connected with the power supply through a resistor R122; the base electrode of the triode Q1 is also connected with the collector electrode through a resistor R123, the collector electrode is also connected with a power supply, and the emitter electrode is connected with the feedback bus of the MCU.
In the specific implementation, as shown in fig. 6, the working principle is as follows: when the detection circuit needs to work, SER_01 inputs high level, and current flows to the base electrode of the triode Q21 through the resistor R161 to enable the triode Q21 to be conducted, so that the detection circuit works electrically. When the detection circuit is powered on, current flows through the current limiting resistor R121 to the infrared emission tube D27, the infrared emission tube D27 emits infrared light, and an infrared receiving triode Q11 is arranged at the corresponding position. When materials exist in the storage position, the shielding of the infrared photoelectric materials can not reach the infrared receiving triode Q11, the infrared receiving triode Q11 is cut off, and the collector electrode of the infrared receiving triode Q11 is high level, so that the triode Q1 is cut off without driving current, the feedback bus does not have current output, and the detection end connected with the MCU is connected with a pair of ground pull-down resistors, namely, the signal detected by the MCU is low level. When no material exists in the bin, infrared light of the infrared transmitting tube D27 can be transmitted to the infrared receiving triode Q11, the infrared receiving triode Q11 is conducted, the collector electrode of the infrared receiving triode Q11 is low level, the base electrode of the triode Q1 is conducted by the triode Q1 due to the fact that a resistor R151 has current, and the feedback bus outputs high level.
The resistor R122 is a bias resistor, and can prevent the influence of ambient light on the infrared receiving transistor Q11. Resistor R123 is a bias resistor of transistor Q1 to avoid interference causing abnormal conduction of transistor Q1.
When the detection circuit does not work, SER_01 inputs low level, triode Q21 cuts off, detection circuit prohibits, infrared emission tube D27 and infrared receiving triode Q11 do not have current to flow through, triode Q1 cuts off, namely detection circuit does not output to feedback bus.
Preferably, the clock of each shift register is connected to the IO port of the MCU, the data input end of the first shift register is also connected to the IO port of the MCU, and the input end of the last shift register of the two adjacent shift registers is connected to the last output end of the previous shift register in a one-to-one correspondence manner, so that the shift registers serially input and output data signals in parallel.
In the implementation, as shown in fig. 7, a circuit diagram of three shift register cascades is provided, and it should be noted that the cascade connection of the shift registers is not limited to three stages of cascades as shown in the drawings, and the specific number of cascades should be set according to practical requirements. The serial-parallel conversion circuit is formed by connecting a plurality of shift registers in series, the data input end of the first shift register is connected with the IO port of the MCU, the data input end of the second shift register is connected with the last data output end of the first shift register, the serial-parallel conversion circuit is connected in series, and therefore the data input end of the shift register of the next stage is connected with the last data output end of the shift register of the previous stage. And the data clocks of all shift registers are uniformly connected to the IO port of the MCU. In addition, a plurality of data output ends of the shift register are connected to corresponding detection circuits to enable driving, when the data output ends of the shift register output high levels, the detection circuits are enabled, and the detection circuits can normally detect whether materials are placed on the library positions or not. When the data output end of the shift register outputs a low level, the detection circuit is forbidden to be inoperative, and the output of the feedback bus is equivalent to a high resistance state, so that the detection of other detection circuits is not influenced.
In summary, as shown in fig. 6 and 7, the material state detection process of the whole shelf position is as follows:
1. the MCU is connected with the data IO port of the first stage shift register, so that 164_DATA outputs low level, the MCU is connected with the IO ports of all shift register data clocks, and 164_CLK sends out corresponding number of pulses, so that all data output of the shift register is initialized to low level, and all detection circuits are forbidden.
2. When the detection is started, the MCU transmits an instruction to enable 164_DATA to output a high level, 164_CLK outputs a pulse, and at this time, the data output interface QA of the first shift register outputs a high level and the detection circuit of the first position is enabled.
3. Then, setting a feedback bus of the MCU as an input port, and simultaneously connecting a pull-down resistor; when the first detection circuit detects that the bin has materials, the infrared transmitting tube D27 cannot reach the infrared receiving triode Q11, the feedback bus output is in a high resistance state, and the feedback bus is pulled down to be in a low level because of the grounding of the pull-down resistor, and when the first detection circuit detects that the bin has no materials, the feedback bus output is in a high level. Thus, the MCU can identify whether the first library bit has materials or not through the high-low level of the feedback bus. The material status of the first bin is recorded.
4. Then, the MCU transmits the command again, so that 164_DATA outputs a low level, 164_CLK outputs a pulse, at this time, the data output port of the shift register is shifted backward by one bit, the corresponding detection circuit is enabled and starts to detect whether the material exists in the library bit, the MCU detects and records the feedback bus level state, and the other detection circuits are all disabled.
5. And (4) repeating the step until all the storage positions are detected, namely recording the material state of the storage positions of the goods shelves.
As a preferable scheme, the steps 2-5 are repeated, and when the consistent material state is detected for a plurality of times, the material state is confirmed to be the determined material state and is transmitted to a database of the server, so that the recorded material state is further ensured not to be wrong. For example, the test may be repeated three times in succession.
Preferably, in order to avoid repeated interference of signals of the infrared sensor in the detection circuit during the picking and placing process of materials, the control module needs to perform jitter removal processing on the signals in a software jitter removal or hardware jitter removal mode when collecting the signals, so that the detection accuracy is improved.
Preferably, the automatic feeding device further comprises a buzzer arranged on the control module, wherein the buzzer is used for giving an audible alarm for the materials which are taken and misplaced by mistake.
The invention provides an intelligent goods shelf foolproof detection method, which adopts the intelligent goods shelf foolproof detection system, and comprises a blanking guiding step of taking materials out of goods shelves and a feeding guiding step of putting the materials on corresponding goods shelves.
Preferably, as shown in fig. 8, the blanking guiding step includes:
s11, a warehouse manager inputs or invokes a receipt with required material information through an input module on the intelligent terminal; for example, for the acquisition of single materials or single materials, the name or number of the required materials can be directly input through software on a PC end or a smart phone, or the required material information can be selected by clicking; aiming at the acquisition of various materials, an electronic receiving bill with required material information can be acquired through software on a PC (personal computer) end or a smart phone, and names or numbers of the materials and the required quantity are recorded on the electronic receiving bill.
S12, the intelligent terminal feeds the material information back to the server, the server compares the database information consistent with the material information on the material receiving bill, quickly finds a storage position closest to a warehouse manager and storing the required material according to the database information, and simultaneously sends a signal to a lighting module on the storage position so that an indicator light of the storage position where the material on the electronic material receiving bill is located is lighted; preferably, the initial position of the bin closest to the bin manager is defined as the bin position closest to the bin entry.
In addition, the lighting module is not limited to the mode of lighting only by the indication lamp, and can also remind by the flashing mode. As a preferable scheme, the indicator lamp of the lighting module is set to be a lamp capable of displaying multiple colors, wherein materials in the same receiving bill in the warehouse are indicated by the same color, so that when a warehouse manager needs to take out the materials on multiple receiving bills, the function of multiple-bill simultaneous operation can be realized, the time for taking materials by the warehouse manager is greatly saved, and the working efficiency is improved.
S13, sequentially taking out materials from the warehouse positions which are lighted by the indicator lights by warehouse operators according to guidance;
s14, when the detection module on the bin detects that the materials on the bin are taken out, the state information of the materials on the bin, which are taken out, are synchronized to the server through the control module.
As another preferred scheme, in order to facilitate management, each material on the goods shelf is stuck with a specific two-dimensional code, when the material is taken out, a warehouse manager needs to scan the two-dimensional codes of the material one by one through an identification module on the intelligent terminal, after scanning, the intelligent terminal can feed back to a server to update the material state information, and the indicator lights on the corresponding warehouse positions are turned off. If the scanned material is not the required material, the system will send an alarm to remind the warehouse manager to correct.
Therefore, the material state information can be updated and the indicator lamp of the lighting module can be extinguished in a feedback manner through the detection module and a two-dimensional code scanning feedback manner.
Preferably, as shown in fig. 9, the feeding guiding step includes:
s21, a warehouse manager scans materials through an identification module on the intelligent terminal to acquire material information; for example, each material is attached with a specific two-dimensional code, and a warehouse manager scans the two-dimensional code on the material through a PC (personal computer) end or a smart phone. Of course, the method is not limited to two-dimensional codes, and bar codes on materials can be identified through an external code scanner. Preferably, the warehouse manager can scan the two-dimensional code or the bar code on the goods shelf through the identification module on the intelligent terminal so as to obtain the information of the material condition on the goods shelf.
S22, the intelligent terminal feeds information back to the server, and the server quickly finds the nearest empty bin position to the warehouse manager according to the database information consistent with the shelf information and sends a signal to the corresponding lighting module so that the indicator lamp of the nearest empty bin position to the warehouse manager flashes;
s23, placing the scanned materials on a storage position where the indicator lights are flashing by a warehouse manager according to guidance;
s24, when the detection module on the stock position detects that the stock position has materials, the state information of the materials in the stock position is synchronized to the server through the control module;
s25, after receiving the information, the server updates a server database, quickly finds out an empty bin closest to the bin where the material is just placed again, and causes an indicator light of the empty bin to flash through a lighting module, and a bin manager places the scanned material on the bin of the flash according to guidance;
s26, repeating the steps S23, S24 and S25 until all materials are put on the shelf.
Also, the indicator lamp in the feeding guiding step is not limited to flashing, and can be a lamp for displaying various colors, so that when a warehouse manager needs to take out different kinds of materials or materials on different material receiving sheets, the function of simultaneous operation of multiple sheets can be realized, and the working efficiency of feeding is improved. Meanwhile, the material state information can be updated and the indicator lamp of the lighting module can be extinguished in a mode of feeding back through the detection module or feeding back through the two-dimensional code scanning.
Preferably, as shown in fig. 10, the specific steps of the detection module in steps S14 and S24 for detecting whether the material exists on the bin position include:
s141, in an initial state, the MCU inputs low level to all shift registers, all shift registers send out the same pulse number as at least one group of detection modules through IO ports of a data clock, so that the data output of the shift registers is completely initialized to be low level, and all detection modules are forbidden;
s142, when detection is started, the MCU inputs high level to the data input of the first shift register through the serial-parallel conversion circuit, then a pulse signal is sent through a clock line connected to the shift register to enable a first output interface of the first shift register to output high level, a first detection circuit is started, and other detection modules are kept disabled;
s143, when the opened detection module detects that materials exist on the library position, the detection circuit outputs a low level to the MCU through the feedback bus, and when the detection module detects that materials do not exist on the library position, the detection circuit outputs a high level to the MCU through the feedback bus, and the MCU records the state of the materials on the library position through the high level and the low level output by the feedback bus;
s144, then, the MCU outputs low level to the data input end of the first shift register, and the clock line connected to the shift register sends a pulse to enable the original detection module to be disabled, the next detection module to be enabled, and other detection modules to be disabled;
s145, in a step S143, the next detection module continues to detect whether materials exist on the corresponding library position and records the materials;
s146, repeating the steps S143 to S145 until all the detection circuits finish one-time detection and record the detection state;
and S147, repeating the steps S142-S146, and when the consistent material state is detected for a plurality of times, confirming that the material state is the determined material state by the MCU, and uploading the state information of the material to the server for storage.
Preferably, the feeding guiding step further includes: when the detection module of the storage position of the flashing lamp does not detect that the material is put in within a certain time, automatically ending the feeding guide step, for example, if no action exists within 1 minute, automatically ending the feeding guide step; when a bin manager puts materials into an empty bin without a flashing lamp, the detection module at the position detects that the materials are put into the bin, information is fed back to the server through the control module, if the bin is compared with the position of the bin which is not used for storing the materials by the server, the buzzer receives a signal and sends out an abnormal alarm so as to remind the bin manager that the materials need to be put into the correct position;
the blanking guiding step further comprises the following steps: when the warehouse manager takes out materials from the warehouse position without flashing lights, the detection module at the position detects that the materials are taken out, information is fed back to the server through the control module, if the server compares that the warehouse position is not the position for storing the materials, the buzzer receives a signal and can send out abnormal alarm so as to remind the warehouse manager that the materials need to be taken out from the correct position.
Furthermore, the intelligent shelf fool-proof detection system and the intelligent shelf fool-proof management method can be matched with a scanning mechanism, a feeding mechanism and a discharging mechanism to realize full-automatic material management. Specifically, each goods shelf is provided with a feeding mechanism, a discharging mechanism and a conveyor belt, when feeding or discharging is started, the type and the quantity of required materials are input or fetched by the system, the system is redistributed to corresponding warehouse positions, the warehouse positions are fed and discharged by the feeding mechanism or the discharging mechanism, and finally the material state is updated to the server.
In summary, compared with the prior art, the intelligent shelf fool-proof detection system and the management method provided by the invention have the following advantages:
1. the signal acquisition is carried out in a serial-parallel conversion and one-by-one detection mode, so that whether materials are stored in a storage position or not is detected, the problem of signal interference is avoided, and the stability and the accuracy of stored data are ensured;
2. the circuit is simple, the wiring is less, the cost is low, the response is quick, and the application prospect is good;
3. by combining with the guiding mode of the lighting module, the working efficiency of warehouse management staff can be effectively improved;
4. the buzzer is added, so that abnormal alarm can be carried out on the misplaced bin, and a bin manager is reminded to correct.
In addition, it should be understood by those skilled in the art that although many problems exist in the prior art, each embodiment or technical solution of the present invention may be modified in only one or several respects, without having to solve all technical problems listed in the prior art or the background art at the same time. Those skilled in the art will understand that nothing in one claim should be taken as a limitation on that claim.
Although terms such as control module, detection module, lighting module, server, identification module, input module, smart terminal, etc. are more used herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention; the terms first, second, and the like in the description and in the claims of embodiments of the invention and in the above-described figures, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (5)
1. The intelligent goods shelf fool-proof management method is characterized by comprising an intelligent goods shelf fool-proof detection system, wherein the intelligent goods shelf fool-proof detection system comprises: the storage rack comprises a plurality of storage rack bodies with at least one storage position, and at least one group of detection modules and lighting modules arranged on each storage position; the intelligent terminal comprises an identification module for identifying material information and an input module for inputting the material information;
the control module comprises an MCU, a serial-parallel conversion circuit and at least one group of detection circuits which are electrically connected in sequence, wherein the serial-parallel conversion circuit comprises a plurality of shift registers which are cascaded, and each shift register is electrically connected with one group of detection circuits;
the clock of each shift register is connected to the IO port of the MCU, the data input end of the first shift register is also connected to the IO port of the MCU, and the input end of the last shift register in the two adjacent shift registers is correspondingly connected with the last output end of the last shift register one by one, so that the shift registers can serially input and output data signals in parallel;
the method comprises a blanking guiding step of taking out materials from a goods shelf and a feeding guiding step of putting the materials on the corresponding goods shelf;
the blanking guiding step comprises the following steps:
s11, inputting or calling an electronic receiving bill with required material information through an input module on the intelligent terminal by a warehouse manager to obtain the material information to be taken out;
s12, the intelligent terminal feeds the material information back to the server, the server compares the database information consistent with the material information on the electronic receiving bill, and according to the database information, quickly finds all the warehouse positions closest to the warehouse manager and storing the required materials, and simultaneously sends a signal to a lighting module on the warehouse positions, so that an indicator lamp of the warehouse position where the material on the electronic receiving bill is located is lighted;
s13, sequentially taking out materials from the warehouse positions which are lighted by the indicator lights by warehouse operators according to guidance;
s14, when the detection module on the bin detects that the materials on the bin are taken out, the state information of the materials on the bin, which are taken out, are synchronized to the server through the control module;
the feeding guiding step comprises the following steps:
s21, a warehouse manager scans materials through an identification module on the intelligent terminal to acquire material information;
s22, the intelligent terminal feeds information back to the server, and the server quickly finds the nearest empty bin position to the warehouse manager according to the database information consistent with the shelf information and sends a signal to the corresponding lighting module so that the indicator lamp of the nearest empty bin position to the warehouse manager flashes;
s23, placing the scanned materials on a storage position where the indicator lights are flashing by a warehouse manager according to guidance;
s24, when the detection module on the stock position detects that the stock position has materials, the state information of the materials in the stock position is synchronized to the server through the control module;
s25, after receiving the information, the server updates a server database, quickly finds out an empty bin closest to the bin where the material is just placed again, and causes an indicator light of the empty bin to flash through a lighting module, and a bin manager places the scanned material on the bin of the flash according to guidance;
s26, repeating the steps S23, S24 and S25 until all materials are put on the shelf
The specific steps of detecting whether the materials exist on the library position by the detection module in S14 and S24 include:
s141, in an initial state, the MCU inputs low level to all shift registers, all shift registers send out the same pulse number as at least one group of detection modules through IO ports of a data clock, so that the data output of the shift registers is completely initialized to be low level, and all detection modules are forbidden;
s142, when detection is started, the MCU inputs high level to the data input of the first shift register through the serial-parallel conversion circuit, then a pulse signal is sent through a clock line connected to the shift register to enable a first output interface of the first shift register to output high level, a first detection circuit is started, and other detection modules are kept disabled;
s143, when the opened detection module detects that materials exist on the library position, the detection circuit outputs a low level to the MCU through the feedback bus, and when the detection module detects that materials do not exist on the library position, the detection circuit outputs a high level to the MCU through the feedback bus, and the MCU records the state of the materials on the library position through the high level and the low level output by the feedback bus;
s144, then, the MCU outputs low level to the data input end of the first shift register, and the clock line connected to the shift register sends a pulse to enable the original detection module to be disabled, the next detection module to be enabled, and other detection modules to be disabled;
s145, in a step S143, the next detection module continues to detect whether materials exist on the corresponding library position and records the materials;
s146, repeating the steps S143-S145 until all the detection circuits finish one-time detection and record the detection state;
and S147, repeating the steps S142-S146, and when the material states are continuously detected to be consistent for a plurality of times, confirming that the material states are the determined material states by the MCU, and uploading the state information of the materials to the server for storage.
2. The intelligent shelf fool-proofing management method according to claim 1, wherein: the detection module comprises a photoelectric sensor arranged on each bin, and the photoelectric sensor is electrically connected with the detection circuit and used for detecting whether materials exist on the target bin.
3. The intelligent shelf fool-proofing management method according to claim 2, wherein: the detection circuit comprises an infrared emission tube D27, a phototriode Q11, a resistor R121, a resistor R122, a resistor R123, a resistor R151, a triode Q1 and a triode Q21; the base electrode of the triode Q21 is connected with the serial-parallel conversion circuit through a resistor R161, the emitter electrode is grounded, and the collector electrode is connected with the emitter electrode of the photoelectric triode Q11; the infrared emission tube D27 is connected with a power supply through a resistor R121, one end of a collector electrode of the triode Q11 is connected with a base electrode of the triode Q1 through a resistor R151, and the other end of the collector electrode is connected with the power supply through a resistor R122; the base electrode of the triode Q1 is also connected with the collector electrode through a resistor R123, the collector electrode is also connected with a power supply, and the emitter electrode is connected with the feedback bus of the MCU.
4. The intelligent shelf fool-proofing management method according to claim 1, wherein: the automatic feeding device is characterized by further comprising a buzzer arranged on the control module, wherein the buzzer is used for giving an audible alarm for the mistakenly fetched and misplaced materials.
5. The intelligent shelf fool-proofing management method according to claim 1, wherein the feeding guiding step further comprises: when the detection module of the storage position of the flash lamp does not detect that the material is put in within a certain time, automatically ending the feeding guiding step; when a bin manager puts materials into an empty bin without a flashing lamp, the detection module at the position detects that the materials are put into the bin, information is fed back to the server through the control module, if the bin is compared with the position of the bin which is not used for storing the materials by the server, the buzzer receives a signal and sends out an abnormal alarm so as to remind the bin manager that the materials need to be put into the correct position;
the blanking guiding step further comprises the following steps: when the warehouse manager takes out the material from the warehouse position of the non-flashing lamp, the detection module at the position detects that the material is taken out, information is fed back to the server through the control module, and if the server compares that the warehouse position is not the position for storing the material, the buzzer receives a signal and can send out an abnormal alarm so as to remind the warehouse manager that the material needs to be taken out from the correct position.
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