CN117081878A - Electronic shelf system based on CAN bus and electronic shelf management method - Google Patents
Electronic shelf system based on CAN bus and electronic shelf management method Download PDFInfo
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- CN117081878A CN117081878A CN202311044818.9A CN202311044818A CN117081878A CN 117081878 A CN117081878 A CN 117081878A CN 202311044818 A CN202311044818 A CN 202311044818A CN 117081878 A CN117081878 A CN 117081878A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10297—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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Abstract
The application relates to the technical field of metering boxes, in particular to an electronic shelf system based on a controller local area network bus and an electronic shelf management method, wherein the system comprises a host module, a communication conversion module and at least two goods space modules; the host module comprises upper computer equipment, lower computer equipment and a first communication module; the communication conversion module comprises a communication conversion singlechip, a second communication module and a CAN bus module; the goods space module comprises a goods space module singlechip, an infrared sensor, a radio frequency identification RFID module, a dot matrix screen and a CAN bus module. In the architecture setting of the electronic goods shelf system, the communication mode based on the CAN bus replaces the communication mode of RS485, so that the efficiency of the communication conversion module for data receiving and data processing of the electronic goods shelf module is improved under the condition of combining the characteristic of the CAN bus, and the development and maintenance difficulty of the electronic goods shelf system is reduced.
Description
Technical Field
The application relates to the technical field of intelligent factories, in particular to an electronic shelf system based on a controller area network (Controller Area Network, CAN) bus and an electronic shelf management method.
Background
With the development of the processing industry, many industries currently carry out product production in a process-outside mode, such as the chip production industry. In the industry, because of more processing links and more steps, the production progress and state are difficult to grasp in time, the management difficulty is increased, and the requirements of customers cannot be met in time. Therefore, the way to introduce intelligent management is a more efficient way to conduct monitoring of product progress.
In the related art, there are electronic shelf systems based on radio frequency identification technology. The electronic shelf system mainly comprises an RFID reader, an LED display screen, a communication host and an upper computer management system. The RFID reader is used for reading and writing glass tube transponders on the wafer boxes, the LED display screen is used for displaying relevant information of the wafer boxes, the communication host is used for controlling and transmitting data of the RFID readers, the glass tube transponders are arranged at the bottoms of the wafer boxes and used for storing information such as unique identification codes of the wafer boxes, each goods position on the goods shelf is provided with the RFID reader and the LED display screen, each goods shelf is provided with the communication host, and the communication host and the RFID reader are communicated through an RS485 bus. When the electronic shelf system works, the photoelectric sensing module of the RFID reader detects the wafer box, and if the wafer box is stored in the current position, a control signal is generated. And after receiving the control signal, the central processing module of the RFID reader reads the storage information of the glass tube transponder on the wafer box and sends the read unique identification code of the wafer box to the LED display screen for real-time display. Meanwhile, the communication host polls each RFID reader through the RS485 bus, so that communication is performed.
However, due to the technical characteristics of RS485, the development difficulty is high, the development period is long, the bus is usually not isolated, and when the system node fails, the positioning cannot be performed, i.e. the development and maintenance difficulty of the electronic shelf system in the related art is high.
Disclosure of Invention
The application aims to overcome the defects and the shortcomings of the prior art, and provides an electronic shelf system based on a CAN bus and an electronic shelf management method, which reduce the development and maintenance difficulty of the electronic shelf system, and the technical scheme is as follows:
in one aspect, an electronic shelf system based on a CAN bus is provided, the system comprising a host module, a communication conversion module, and at least two cargo space modules;
the host module comprises upper computer equipment, lower computer equipment and a first communication module;
the communication conversion module comprises a communication conversion singlechip, a second communication module and a CAN bus module;
the goods space module comprises a goods space module singlechip, an infrared sensor, a radio frequency identification (Radio Frequency Idenfication, RFID) module and a CAN bus module, wherein the infrared sensor is used for identifying goods storage and taking actions, and the RFID module is used for identifying the type of goods based on the goods identification;
the communication protocol of the first communication module is consistent with that of the second communication module;
the host module is in communication connection with the communication conversion module through the matching communication of the first communication module and the second communication module, and the communication module is in communication connection with one cargo space module through the CAN bus module; two adjacent goods space modules are connected through a CAN bus module.
In an alternative embodiment, each cargo space module corresponds to a physical shelf grid;
the RFID module and the infrared sensor are positioned in the physical shelf grid;
the position of the RFID module corresponds to the goods placement position inside the physical goods shelf grid, and the position of the infrared sensor corresponds to the opening position of the physical goods shelf grid.
In an alternative embodiment, the cargo space module further comprises a dot matrix screen;
the number of the dot matrix screens corresponds to the number of the entity shelf grids;
the lattice screen is arranged on the outer side of the solid shelf lattice.
In an alternative embodiment, the protocol of the first communication module and the second communication module is an RS232 communication protocol.
In an alternative embodiment, the host module further comprises a wireless communication module;
the wireless communication module is in communication connection with the lower computer equipment.
In another aspect, there is provided an electronic shelf management method applied to any one of the electronic shelf management systems described above, the method comprising:
the goods space module receives goods shelf access action data of the infrared sensor and goods data acquired by the RFID module through a goods space module singlechip; generating first reporting data based on the goods shelf access action data and the goods data and transmitting the first reporting data to the CAN bus module, wherein the first reporting data is realized in a communication data block form based on a CAN bus; transmitting the first reporting data to a conversion singlechip in a communication conversion module through a CAN bus module;
the communication conversion module collects the first report data uploaded by each goods space module through the CAN bus module; generating second report data based on the first report data; sending second report data to the host module through the second communication module;
the host module receives second report data through the first communication module; and processing the second reported data to obtain the electronic shelf management data.
In an alternative embodiment, each cargo space module corresponds to one physical shelf grid, and the cargo space modules further comprise dot matrix screens, and the number of the dot matrix screens corresponds to the number of the physical shelf grids;
the method further comprises the steps of:
the goods space module generates display data based on goods shelf access action data and goods data through a goods space module singlechip; and displaying the cargo state corresponding to the entity shelf grid on the dot matrix screen based on the display data.
In an alternative embodiment, before displaying the cargo state corresponding to the physical shelf grid on the dot matrix screen based on the display data, the method includes:
the goods space module receives goods state display signals through the goods space module singlechip, wherein the goods state display signals are signals generated based on touch operation on the dot matrix screen.
In an alternative embodiment, the host module further comprises a display screen;
the method further comprises the steps of:
the host module generates display data based on the electronic shelf management data, and the display data is used for displaying goods picking, placing and managing conditions corresponding to the goods position module on the display screen.
In an alternative embodiment, the host module further comprises a wireless communication module;
the method further comprises the steps of:
and the host module uploads the electronic shelf management data through the wireless communication module.
The application at least has the following beneficial effects:
in the architecture setting of the electronic goods shelf system, the communication mode based on the CAN bus replaces the communication mode of RS485, so that the efficiency of the communication conversion module for data receiving and data processing of the electronic goods shelf module is improved under the condition of combining the characteristic of the CAN bus, and the development and maintenance difficulty of the electronic goods shelf system is reduced.
Drawings
The accompanying drawings are included to provide a further understanding of the application, and are incorporated in and constitute a part of this specification, illustrate the application and together with the description serve to explain, without limitation, the application. In the drawings:
fig. 1 shows a schematic frame diagram of an electronic shelf system based on a CAN bus according to an exemplary embodiment of the present application.
FIG. 2 illustrates a schematic diagram of a pallet provided by an exemplary embodiment of the present application.
Fig. 3 shows a schematic frame diagram of another electronic shelf system based on a CAN bus according to an exemplary embodiment of the present application.
Fig. 4 is a flow chart illustrating a method for electronic shelf management according to an exemplary embodiment of the present application.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the electronic shelf system of the present application may be implemented as an electronic shelf system of a wafer processing factory or an electronic shelf system of a glass production factory. The application is not limited to the practical use of the electronic shelf system.
Fig. 1 is a schematic diagram of a frame of an electronic shelf system based on a CAN bus according to an exemplary embodiment of the present application, please refer to fig. 1, wherein the system includes a host module 10, a communication conversion module 20, and at least two cargo space modules 30; the host module 10 includes an upper computer device 110, a lower computer device 120, and a first communication module 130; the communication conversion module 20 includes a communication conversion singlechip 210, a second communication module 220, and a CAN bus module 230; the cargo space module 30 comprises a cargo space module singlechip 310, an infrared sensor 320, an RFID module 330 and a CAN bus module 340, wherein the infrared sensor 320 is used for identifying the cargo storing and taking action, and the RFID module 330 is used for identifying the cargo type based on the cargo identification; the first communication module 130 is consistent with the communication protocol of the second communication module 220; the host module 10 is in communication connection with the communication conversion module 20 through the first communication module 130 and the second communication module 220, and the communication module 20 is in communication connection with one cargo space module 30 through the CAN bus module 230; two adjacent cargo space modules are connected through the CAN bus module 240.
In the embodiment of the application, the CAN bus modules are arranged among the cargo space modules, and after the cargo space module single chip microcomputer of the cargo space module generates data, the data is uploaded through the CAN bus modules, so that the CAN bus modules in the communication conversion modules receive the corresponding data. In the embodiment of the application, the form and the function of the CAN bus module are consistent, so that distinction is not carried out, the CAN bus module in the goods space module is the goods shelf CAN bus module, and the CAN bus module in the communication conversion module is the communication conversion CAN bus module.
In the embodiment of the application, the CAN bus module in the communication conversion module is only in communication connection with the CAN bus module in one cargo space module, so that the resource consumption is reduced.
In an embodiment of the present application, the cargo space module is a module corresponding to a rack storing products. In the various embodiments of the present application, the product stored in the cargo space module is attached with a tag that can be identified by the RFID module. In one example, the model of the single-chip microcomputer is: the model of the GD32F303 infrared sensor is as follows: the model of the TCRT5000 RFID module is as follows: TMS3705AG4. Optionally, one goods space module corresponds to a goods shelf area, in the goods shelf area, the stored goods information can be acquired by the RFID module, the goods access action can be identified by the infrared sensor, and the goods space module singlechip packages the received data to generate the data for reporting to the host module.
In the embodiment of the application, the host module is connected with the communication conversion module not through the CAN bus module, but through the matching of the first communication module and the second communication module, the communication connection is realized, and the transmission speed is improved. Optionally, the first communication module and the second communication module are both communication modules adapting to RS232 protocol.
In the embodiment of the application, the host module is realized as a combination of the lower computer device and the upper computer device. The lower computer equipment is used for receiving the data and issuing a control instruction, and the upper computer equipment is used for displaying an interface and providing an operating environment for staff. The application is not limited to the specific implementation manner of the upper computer device and the lower computer device, and in some embodiments, the upper computer device and the lower computer device are implemented as an integrated device.
In an alternative embodiment, please refer to fig. 2 and 3. As shown in fig. 2, each cargo space module corresponds to a physical shelf grid 240; the RFID module 211 and the infrared sensor 320 are located inside the physical shelf grid 210; the position of the RFID module 330 corresponds to the placement position of the cargo 202 inside the physical shelf 240, and the position of the infrared sensor 320 corresponds to the opening position of the physical shelf 240. In this case, the cargo space module 240 also includes a dot matrix screen 350; the number of lattice screens 350 corresponds to the number of physical shelf cells 240; the dot matrix screen 350 is disposed outside the physical shelf grid 230. In this case, a cargo space module is used to monitor cargo within a rack and cargo access events that occur within the rack in association with the cargo within the rack.
In an alternative embodiment, referring to fig. 3, the host module 10 further includes a wireless communication module 140; the wireless communication module 140 is communicatively connected to the lower computer device 120. Optionally, the wireless communication module 140 is implemented as a 2.4G wireless network module, and the specific form of the wireless communication module is not limited in the present application. Optionally, the host module further comprises a display 150.
Note that, compared to the RS485 communication, the CAN bus-based communication has the following advantages:
1, speed and distance: the distance between CAN and RS485 at high speed of 1Mbit/S is not more than 100M, and the distance at high speed is similar. However, at low speed CAN is 5Kbit/S, the distance CAN be up to 10KM, and 485 CAN only be up to about 1219 meters (no relay). CAN is seen to have absolute advantages over long distance transmissions.
2, bus utilization: the RS485 is of a single master-slave structure, namely, only one host computer can be arranged on one bus, communication is initiated by the host computer, a reply needs to be received after the communication is initiated, and the host computer inquires the next node after receiving the reply, so that the data disorder caused by the fact that a plurality of nodes send data to the bus is prevented. The CAN is of a multi-master-slave structure, each node is provided with a CAN controller, and when a plurality of nodes transmit, the nodes automatically arbitrate by using transmitted ID numbers (identifiers), so that bus data CAN be not disordered, one node CAN detect that a bus is idle and transmit immediately after transmitting, the inquiry of a host is omitted, the bus utilization rate is improved, and the rapidity is enhanced.
The error detection mechanism, RS485, only specifies the physical layer and no data link layer, so it is unrecognizable to errors unless there are some physical errors such as short circuits. This can easily result in the module still continually sending data to the bus (always 1) in the event that one node is destroyed, ultimately resulting in a total bus skew. So RS485 will break down the bus network once there is a single corrupted node. While the CAN bus has a CAN controller that CAN detect any errors in the bus, in one example, if there are more than 128 errors per se, then the bus is automatically latched. And protecting the bus. If other node errors or self errors are detected, an error frame is sent to the bus to prompt other nodes. Thus, once a node MCU program runs off, the controller of the CAN bus is automatically locked. And protecting the bus. CAN is very strong in networks where security requirements are high.
The CAN bus is connected to the physical bus through two output terminals CANH and CANL of the CAN controller interface chip 82C250, and the state of the CANH terminal CAN only be in a high level or a floating state, and the state of the CANL terminal CAN only be in a low level or a floating state. Therefore, the phenomenon that when the system has errors and multiple nodes send data to the bus at the same time, the bus is short-circuited, so that some nodes are damaged is avoided. And the CAN node has an automatic closing output function under the condition of serious error, so that the operation of other nodes on the bus is not affected, thereby ensuring that the bus is in a deadlock state because of the problem of individual nodes in a network.
The CAN has a perfect communication protocol and CAN be realized by a CAN controller chip and an interface chip thereof, thereby greatly reducing the development difficulty of the system and shortening the development period.
Referring to fig. 1 to 3 and the corresponding description, fig. 4 is a schematic flow chart of an electronic shelf management method according to an exemplary embodiment of the present application, and the method is applied to the electronic shelf system shown in fig. 1 or 3 for illustration, where the method includes:
in step 401, the cargo space module receives the storage and taking action data of the goods shelf of the infrared sensor and the goods data collected by the RFID module through the cargo space module singlechip.
In the embodiment of the application, the goods data are data obtained by the RFID module in a bar code identification mode, a two-dimensional code identification mode and the like, and the goods shelf access action data are data generated by the infrared sensor module in response to goods access operation of a user. In one example, a user obtains goods through a mechanical device or directly enters an acquisition position of an infrared sensor, the infrared sensor is triggered to generate goods shelf access action data, and the RFID module acquires two-dimensional code data or bar code data of the goods in the physical goods shelf in real time, so that goods data are generated.
In step 402, the cargo space module generates first report data based on the shelf access action data and the cargo data and transmits the first report data to the CAN bus module.
In the embodiment of the application, the first reporting data is data in a format adapting to a CAN bus transmission mode, in one example, a CAN bus protocol encodes through a communication data block, and corresponding to the first upper table data, binary numbers with 11 bits or 29 bits are generated as identification codes of the data block, so that data transmission is realized. That is, the first reporting data is implemented in the form of a communication data block based on the CAN bus.
And step 403, transmitting the first report data to the communication conversion module through the CAN bus module.
The process is a transmission process of the first report data, and optionally, the first report data is transmitted to a CAN bus module in the communication conversion module.
Step 404, the communication conversion module collects the first report data uploaded by each cargo space module through the CAN bus module.
The process is a receiving process of the first report data. Because the CAN bus module of the communication conversion module is only connected with the CAN bus module on one shelf, the CAN bus module on the communication conversion module also has a data summarizing function.
In step 405, the communication conversion module generates second report data based on the first report data.
In the embodiment of the application, the communication conversion module is adapted to the CAN bus communication mode and the communication mode of the first communication module to convert the data form.
In step 406, the communication conversion module sends the second report data to the host module through the second communication module.
The process is the sending process of the second report data.
In step 407, the host module receives the second report data through the first communication module.
The process is the receiving process of the second communication data.
In step 408, the host module processes the second report data to obtain electronic shelf management data.
In the embodiment of the application, the electronic shelf management data is data generated by correspondingly recording the goods information and the access actions on the shelf grids of different entities. Optionally, the electronic shelf management data is implemented in list form.
In summary, in the method of the embodiment of the application, in the architecture setting of the electronic shelf system, the communication mode based on the CAN bus replaces the communication mode of RS485, so that the efficiency of the communication conversion module for the data receiving and the data processing process of the electronic goods space module is improved under the condition of combining the characteristic of the CAN bus, and the development and maintenance difficulty of the electronic shelf system is reduced.
In an alternative embodiment, in the case that the cargo space module also has a dot matrix screen, the cargo space module generates display data based on the shelf access action data and the cargo data through the cargo space module singlechip; and carrying out cargo state display corresponding to the entity goods shelf grid on the dot matrix screen based on the display data, and receiving cargo state display signals through the cargo space module single chip microcomputer, wherein the cargo state display signals are signals generated based on touch operation on the dot matrix screen. That is, the dot matrix screen has a function of directly displaying the cargo state or intuitively displaying the cargo state in response to a user's call-out operation.
In an alternative embodiment, in the case that the host computer of the host module is implemented as a display screen, the host module generates display data based on the electronic shelf management data, where the display data is used to display goods picking, placing and managing conditions corresponding to the goods space module on the display screen.
In an alternative embodiment, the host module is configured with a wireless communication module, and the host module is capable of uploading electronic shelf management data via the wireless communication module.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present application, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the application, and are also considered to be within the scope of the application.
Claims (10)
1. The electronic goods shelf system based on the CAN bus is characterized by comprising a host module, a communication conversion module and at least two goods space modules;
the host module comprises upper computer equipment, lower computer equipment and a first communication module;
the communication conversion module comprises a second communication module and a CAN bus module;
the goods space module comprises a goods space module singlechip, an infrared sensor, a radio frequency identification RFID module and a CAN bus module, wherein the infrared sensor is used for identifying goods storing and taking actions, and the RFID module is used for identifying the type of goods based on the goods identification;
the first communication module is consistent with the communication protocol of the second communication module;
the host module is in communication connection with the communication conversion module through the matching of the first communication module and the second communication module, and the communication module is in communication connection with one cargo space module through the CAN bus module; and two adjacent cargo space modules are connected through the CAN bus module.
2. The electronic shelf system of claim 1, wherein each of said cargo space modules corresponds to a physical shelf grid;
the RFID module and the infrared sensor are positioned in the physical shelf grid;
the position of the RFID module corresponds to the goods placement position inside the physical goods shelf grid, and the position of the infrared sensor corresponds to the opening position of the physical goods shelf grid.
3. The electronic shelf system of claim 2, wherein the cargo space module further comprises a dot matrix screen;
the number of the dot matrix screens corresponds to the number of the entity shelf grids;
the lattice screen is arranged on the outer side of the solid goods shelf lattice.
4. The electronic shelf system of claim 1, wherein the protocol of the first communication module and the second communication module is an RS232 communication protocol.
5. The electronic shelf system of claim 1, wherein the host module further comprises a wireless communication module;
the wireless communication module is in communication connection with the lower computer equipment.
6. A method of electronic shelf management, wherein the method is applied to the CAN bus-based electronic shelf system as defined in any one of claims 1 to 5, the method comprising:
the goods space module receives goods shelf access action data of the infrared sensor and goods data acquired by the RFID module through a goods space module singlechip; generating first reporting data based on the goods shelf access action data and the goods data and transmitting the first reporting data to a CAN bus module, wherein the first reporting data is realized in a communication data block form based on a CAN bus; transmitting the first reporting data to a communication conversion module through the CAN bus module;
the communication conversion module collects the first report data uploaded by each goods space module through the CAN bus module; generating second report data based on the first report data; sending the second report data to a host module through the second communication module;
the host module receives the second report data through the first communication module; and processing the second reported data to obtain electronic shelf management data.
7. The method of claim 6, wherein each of the cargo space modules corresponds to one physical shelf grid, and the cargo space modules further comprise dot matrix screens, the number of dot matrix screens corresponding to the number of physical shelf grids;
the method further comprises the steps of:
the goods space module generates display data based on the goods shelf access action data and the goods data through the goods space module singlechip; and displaying the cargo state corresponding to the entity shelf grid on the dot matrix screen based on the display data.
8. The method of claim 7, wherein the displaying the cargo state corresponding to the physical shelf grid on the lattice screen based on the display data is preceded by:
the goods space module receives goods state display signals through the goods space module singlechip, wherein the goods state display signals are signals generated based on touch operation on a dot matrix screen.
9. The method of claim 6, wherein the host module further comprises a display screen;
the method further comprises the steps of:
the host module generates display data based on the electronic shelf management data, wherein the display data is used for displaying goods picking, placing and managing conditions corresponding to the goods position module on the display screen.
10. The method of claim 9, wherein the host module further comprises a wireless communication module;
the method further comprises the steps of:
and the host module uploads the electronic shelf management data through the wireless communication module.
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| CN202311044818.9A CN117081878A (en) | 2023-08-18 | 2023-08-18 | Electronic shelf system based on CAN bus and electronic shelf management method |
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| CN202311044818.9A CN117081878A (en) | 2023-08-18 | 2023-08-18 | Electronic shelf system based on CAN bus and electronic shelf management method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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