CN112966794A - Production tracing and dynamic process management system based on RFID - Google Patents
Production tracing and dynamic process management system based on RFID Download PDFInfo
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Abstract
The invention relates to a process management system, in particular to a production tracing and dynamic process management system based on RFID (radio frequency identification devices), which comprises a process module, a coding module, a data acquisition module, a data processing module and an information display module, wherein the coding module is used for coding a production trace and a dynamic process management module; the invention is based on RFID technology, and realizes the whole realization process of dynamic procedure modeling, data processing and storage in the production process of industrial enterprises in a software and hardware matching mode.
Description
Technical Field
The invention relates to a process management system, in particular to a production tracing and dynamic process management system based on RFID.
Background
The most widely used automatic identification modes in the industrial field at present mainly include optical identification and radio identification. The most common implementation manner of optical identification is to read data of code tags such as one-dimensional codes and two-dimensional codes through optical equipment. RFID (Radio Frequency Identification) is a new automatic Identification technology using an induction electronic tag or an electronic card as an information carrier, and the RFID electronic tag can read and write data through a special reader.
The RFID electronic tag has the advantages of moisture resistance, high temperature resistance, capability of being identified in non-contact motion and the like. Most optical identification methods cannot solve dim and harsh industrial production environments, so that the radio identification technology can be used in wider industrial scenes. The RFID electronic tag content has unique identification, secondary reconstruction is not needed after customization production is completed, and the reader mainly comprises a fixed reader and a mobile handheld reader.
The conventional product tracing method of the RFID electronic tag generally uses RFID as a unique identifier of a product in a production process, associates the product with production information in each process to achieve the purpose of recording, and finally uses a printed finished product two-dimensional code as a product tracing medium in a factory packaging link.
However, when this scheme is implemented, some difficulties may be encountered, for example, when the sequence of the processes is adjusted or the process of the production process needs to be modified, the program itself often needs to be changed and the project needs to be redeployed.
Disclosure of Invention
An object of the present invention is to solve the above-mentioned drawbacks of the prior art by providing a production traceability and dynamic process management system based on RFID.
The technical scheme adopted by the invention is as follows: the system comprises a process module, a code assigning module, a data acquisition module, a data processing module and an information display module;
the process module comprises a back-end configuration module, a hardware-end dynamic deployment module and an android-end dynamic deployment module, wherein the back-end configuration module is used for providing a process configuration interface for an administrator, the hardware-end dynamic deployment module is used for initializing a process flow and loading configured process information, and the android-end dynamic deployment module is used for monitoring dynamic process configuration, triggering actions of part of process steps and early warning and operating on site abnormal conditions;
the code assigning module generates a connection through an RFID tag, the RFID tag stores a unique id in a section of system and is used for identifying a product, and the RFID tag is fixed on a product raw material in a sticking, adsorbing, hanging and other modes after being initialized successfully;
the data acquisition module is used for inputting system data;
the data processing module is used for processing simple data and complex data;
the information display module is used for displaying product information.
As a preferred technical scheme of the invention: the hardware end of the hardware end dynamic deployment module comprises an RFID read-write module for managing a data acquisition module, a balance weight read module and an ERP passive butt joint module.
As a preferred technical scheme of the invention: before the RFID tag is used, data initialization is required, and the specific steps are as follows:
step 3.1: a worker logs in a label initialization application of the handheld android terminal;
step 3.2: placing an RFID label in a read-write area behind a terminal, and triggering an RFID to read a broadcast after clicking an initialization button;
step 3.3: the program reads the labels circularly, analyzes the read label list, firstly judges whether only one label is scanned, if a plurality of labels are scanned, data writing operation is not carried out, and an interface prompts a worker to operate improperly; and if the unique label is scanned, requesting a section of unique ID code from the background and writing the label, and prompting the successful initialization by the interface.
As a preferred technical scheme of the invention: the preliminary binding step of the RFID label and the product comprises the following steps:
step 4.1: printing one-dimensional codes of products and production machines in advance;
step 4.2: and (4) logging in an application program of the product label binding procedure by a worker, scanning the one-dimensional code and the RFID label through the terminal, and uploading data to a background program to finish data relation binding.
As a preferred technical scheme of the invention: the data acquisition module comprises a product information initialization module, a product weight information recording module and a product quality inspection information recording module.
As a preferred technical scheme of the invention: the simple data processing comprises n links, the first link generates a unique id to be bound to the RFID, meanwhile, the system can temporarily store relevant information of the link, other links can find the product id according to the RFID, record the relevant information, complete all production links, and the system can send all production information to the platform for persistent storage.
As a preferred technical scheme of the invention: the storage adopts a json structure.
As a preferred technical scheme of the invention: the complex data processing is to analyze the binary protocol transmitted by the electronic equipment.
As a preferred technical scheme of the invention: the information display module comprises webpage display, APP display and WeChat applet display.
As a preferred technical scheme of the invention: the APP display comprises a product information query module and a product packaging prompt module, wherein the product information query module is used for querying and displaying all production information recorded by a product through an RFID tag at an android terminal; the product packaging prompting module is used for displaying and prompting the product quality inspection grade at the android terminal.
The RFID electronic tag has the advantages of moisture resistance, high temperature resistance, capability of being identified in non-contact motion and the like. Compared with an optical identification mode, the information identification problem of a dim and severe environment can be solved. In terms of cost performance, the RFID electronic tag has low unit price and high durability, and can realize repeated data reading and writing, so that the performance-cost ratio is high.
Drawings
FIG. 1 is a diagram of a portion of the system architecture of the present invention;
FIG. 2 is a schematic view of the production process of the present invention;
FIG. 3 is a block diagram of the system of the present invention;
FIG. 4 is a production flow diagram of the present invention;
FIG. 5 is a process flow diagram of the present invention.
Detailed Description
It should be noted that, in the present application, features of embodiments and embodiments may be combined with each other without conflict, and technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the invention provides a production tracing and dynamic process management system based on RFID, which takes RFID technology as a main technology and a code scanning technology as an auxiliary technology, helps production and manufacturing enterprises to realize paperless operation of production information recording, collects, processes and stores data in the product manufacturing process, finally achieves the purpose of product quality tracing, and realizes flexible modification of the production tracing process flow through dynamic configuration of data parameters and trigger actions.
The core idea of the invention is to model the production line process according to the actual production situation, configure the data, triggering conditions, process context and the like required to be collected by each process, finally simulate the production process into a production flow chart, and help enterprises to realize production automation and production traceability by combining software and hardware.
A system administrator needs to configure production procedures before entering production and bind parameters and procedures, wherein the RFID tag is used as a production identifier of a product and forms a corresponding relation with a software system. In each process of the production process, the service flow is identified by identifying the RFID tag, and the production data is recorded into a local system for processing. The data after local processing is uploaded to cloud service, and finally displayed to consumers in the modes of WeChat small programs, mobile phone APP and the like.
The data acquisition equipment comprises RFID electronic tags, RFID read-write equipment and other production data acquisition equipment. The RFID reading and writing equipment mainly comprises a fixed reader-writer and a mobile handheld reader-writer, and different types of reader-writers can be adopted in different process links. Other production data acquisition equipment refers to equipment which can generate data and has data transmission capacity in the production process of a factory, and is adapted according to the production condition of the product of an enterprise, such as an electronic scale for recording the weight of the product, a temperature measuring instrument for recording the temperature and the like.
The core software of the method comprises:
production process management system
Is responsible for configuring and managing production processes
Production business application program
The RFID reading module, the weight reading module and the production business application program (hereinafter referred to as production APP) are installed on the RFID handheld terminal, and the core business logic implementation mode is configured through a production process, so that business matching and production data uploading are performed.
Third, WeChat small program
The method mainly realizes the tracing inquiry of the product information by public users.
Introduction of function Module
1. Process module
The process module is divided into a rear-end configuration module, a hardware-end dynamic deployment module and an android-end dynamic deployment module.
Working procedure configuration module
This module provides the administrator with a configuration interface for the process. The administrator can construct a production flow chart by means of mouse dragging and pulling, as shown in fig. four. The production flow chart core comprises three parts of production start, procedure production and production end. The process production can be configured with a plurality of processes, each process needs to be configured with a separate process flow chart, as shown in fig. five, and the process flow chart core comprises four parts of a production inlet, a production start, a production step and a production end. The production entry node needs to bind an RFID reader-writer, and the practical meaning is that when the RFID reader-writer bound in the process reads an RFID label in the production process, the process starts to produce, products bound by the RFID label can be produced based on a process flow chart of the process, and the process is finished until the process is completed, and the products enter the next link.
The module is intended to realize production automation, but is also compatible with a semi-automation mode, and the RFID read-write mode triggers the process to start, and can also be replaced by the manual selection start (pause and stop) of the terminal.
Each node of the production flow chart and the process flow chart can be configured with rules, and the rules comprise production conditions, production actions and production data.
The production rule is an abstract concept, and the practical meaning of the production rule is to determine the sequence and the relationship among data needing to be collected, for example, the rule of cooling a product when the temperature of the product reaches 25 ℃, the rule of cooling the product when the temperature of the product reaches 25 ℃, the production condition, the production action and the time and the frequency of cooling are recorded by a background to form production data.
Data collection equipment can be bound in each production step of the process, and the data collection comprises two modes of automatic collection and manual collection. The realization of automatic collection requires binding the collection equipment in the production step, and simultaneously, adding a module for operating the collection equipment in the software layer, if the weight data of the electronic scale needs to be input in the production step, adding an electronic scale control module in the software layer, and automatically inputting the data of the electronic scale into the system through the forms of serial ports, network ports and the like. The manual collection is realized by a worker scanning the RFID tag through the RFID handheld reader, identifying the product and manually inputting data into the system.
The module has good interface expansibility, the mode of collecting data is actually a network request interface, and the module can be accessed into the system as long as the structure of interface return values is met.
When the module is configured with process steps, each step can use the existing basic modules such as an RFID read-write module, a weight reading module, field names for specifying input and output, a processing method, a submitting triggering condition, a triggering action calling interface, the overall sequence of the process, specific stations and the serial number of a production line. If the 3 rd step of the process is configured, the pipeline 1 reads the tag through the RFID read-write module, the field is RFID 123, the process enters step 2, the step 2 waits and records through the weight read module, the weight field is weight 2, when the weight parameter is read, the weight write interface is triggered and called, the weight parameter is introduced into the weight write interface 2, and the RFID is E123, so that the process is completed. The process steps may also be configured as a semi-automatic configuration process, i.e., partially using an automatic configuration process, and waiting for a manual completion signal after a certain step before proceeding to other steps.
Dynamic deployment module of hardware end
The module mainly realizes the initialization of the process flow and loads the configured flow information, and the process needs to be carried out before the actual production.
The hardware end is mainly an RFID read-write module for managing the data acquisition module, a balance weight reading module and an ERP passive butt joint module and is responsible for realizing the latest process acquisition logic through the configuration process at the rear end.
The module mainly comprises the steps of reading current configuration, allocating initialization procedures, allocating each step, filling fields required by the steps, acquiring information of corresponding types by using a data acquisition module, and finally submitting data according to a configured submission triggering interface and a data format.
Dynamic deployment module of android terminal
The module is an auxiliary module of the dynamic process and mainly realizes monitoring of dynamic process configuration, action triggering of partial process steps and early warning and operation of field abnormal conditions.
The module provides a data visualization function of the production process, can dynamically fill a functional interface distributed by the back-end configuration module, and displays configured parameters and data on the interface, wherein essentially the Key-Value data pair is displayed.
The module provides a process production action triggering function. For example, step 2 of the assigning process 1 is an android end step, the current product quality inspection level a, B or C needs to be selected, the submission requirement is that the quality inspection level has been selected, the submission interface is "submit", the parameter is "level", the method is "GET", and at this time, the android end automatically populates the quality inspection level selection button and the submission button. And uploading the selected data according to a specified interface when the click is submitted, such as: "submit? Grade a ".
2. Coding module
The process in the factory production process is linked through the RFID tag, and the RFID tag stores a unique id in a section of system and is used for identifying products. After the RFID label is initialized successfully, the RFID label is fixed on a product raw material in a sticking, adsorbing, hanging and other modes, data acquisition and processing are carried out by a system in each process of product production, and the data is stored in a database by taking the RFID label as an identifier.
Before the RFID tag is used, data initialization is required, and the specific process is as follows:
(1) and (4) enabling a worker to log in the label initialization application of the handheld android terminal.
(2) And placing an RFID label in a read-write area behind the terminal, and triggering the RFID to read the broadcast after clicking an initialization button.
(3) The program reads the labels circularly, analyzes the read label list, firstly judges whether only one label is scanned, if a plurality of labels are scanned, data writing operation is not carried out, and an interface prompts a worker to operate improperly; and if the unique label is scanned, requesting a section of unique ID code from the background and writing the label, and prompting the successful initialization by the interface.
The system also provides a standardized printing code-assigning mode, the production rule of the process can be added with printing action, the configured data key value pair can be printed, and the specified URI can be printed into a two-dimensional code format. This module also provides custom configuration of print templates.
3. Data acquisition module
Worker terminal entry
Product information initialization module
After the RFID initialization is completed, only one section of unique id in the system is stored, no production data is stored, and all data are stored in a program and a database. Therefore, a worker is required to preliminarily bind the RFID tag and the product in the first process step, for example, to determine which way the tag is produced, and how the tag is produced, so that the system can enter corresponding data in each next process step.
The main function of the module is to record the product type, the production machine code, the production time and other basic information at the android terminal.
The module provides the functions of scanning product types, scanning machine codes, scanning labels and submitting, production personnel firstly scan initialized RFID labels, the labels are placed in a scanning area of a reader-writer, a label list is obtained through an RFID label reading-writing program, whether a plurality of labels are read or not is judged, if only one label is read, a worker reads the bar code information of the product and the machine through a bar code reading service, whether the format is correct or not is checked, the bar code information needs to be scanned again if the format is incorrect, when the bar code information is correct, a user can submit the read information to a background, and the background automatically records the information of the production personnel and the like.
The primary binding process of the RFID label and the product comprises the following steps:
(1) one-dimensional codes of products and production machines are printed in advance.
(2) And (4) logging in an application program of the product label binding procedure by a worker, scanning the one-dimensional code and the RFID label through the terminal, and uploading data to a background program to finish data relation binding. Whereby the database stores the association of the product and the production machine.
② product weight information recording module
The module has the main function of recording the basic information of product weight, production personnel and the like.
After entering the module from an android terminal, the system automatically reads and displays an electronic scale list, a worker needs to select the electronic scale at a station, then the function of reading a tag list is entered, the tag can be read in batches by the function, the worker scans all product tags to be weighed through tag scanning service, next-step product weighing is carried out, the reading of the scale can be automatically uploaded to a background, the worker actively operates the reading function to inquire the weight bound by the current scale, filling and displaying are carried out, and the electronic scale list can be read after weighing again when the weight is found to be abnormal. And after the weight of all products is read, submitting operation can be carried out, the products in the batch are submitted in batches, if the products are successfully submitted, the successful submission is prompted, if part of the label data is abnormal or is not initialized, the label data with the problems are displayed in red, and the staff find the label with the problems according to the reading sequence to replace the label with the problems. And finishing the recording of the product weight information.
Third, product quality inspection information recording module
The module has the main function of recording basic information such as product quality inspection grade, quality inspection personnel and the like.
The employee can read the tag information through the android terminal RFID tag read-write service in the module, after taking the unique tag identification of the tag, inquire the type of the background product and the machine code for producing the current product, display the tag on a page, then select the detection result, operate and submit the current detection result to the background, judge whether the background is abnormal, if the background is abnormal, all the products of the same type produced by the current team and the machine are marked to be of the same grade from the moment, and the products of the same type produced by the current team and the machine are submitted until the quality detection result is qualified.
Automatic acquisition of electronic equipment
Electronic equipment used by industrial production enterprises is various in types, and the accepted data formats are different, but a data transmission module mainly comprises a serial communication module, a network communication module, a Bluetooth module and a USB module. The electronic equipment can establish connection with the system service through the transmission interface to receive and transmit instructions and data. We take a serial port of a common electronic scale as an example to briefly describe the automatic acquisition process of the electronic device.
The protocol format of electronic scale generally is protocol head + command code + data bit + check-up bit + end bit, electronic equipment automatic acquisition service can form the connection through serial ports and electronic scale, and then carry out the agreement with the electronic scale and interact, acquisition service can be analyzed the agreement according to specific rule, data after will analyzing (here refer to the weight data of electronic scale) are deposited in database or buffer memory, the automatic acquisition of data has just so been accomplished, and do not need the manual record weight to type in the system, realize the paperless of enterprise, high efficiency official working.
The automatic acquisition of the electronic equipment is an extensible module, and the module needs to be configured with an API interface with a uniform format.
4. Data processing module
Simple data processing
Each process of factory production relates to data processing, a first link, which is a wire drawing link in the embodiment, can generate a unique id to be bound to the RFID, meanwhile, a system can temporarily store related information of the link, such as time, model and the like, and other links can find the product id according to the RFID and record the related information. And after finishing all production links, the system sends all production information to the platform for persistent storage. And a json structure compatible with the national secondary identification node is adopted in the whole storage process.
The RFID is used as an information identifier for the operation of the production line, and the system processes and stores the production data of each process by identifying the id of the RFID in the system in the operation process.
Complex data processing
The protocol data processing is to analyze the binary protocol transmitted by the electronic equipment. When the program is coded, the used devices are classified according to the protocol, and a corresponding protocol library and a protocol analysis processing method are constructed. When the service receives a protocol sent by a certain device, the data which can be identified by a factory is extracted and analyzed from the binary system or the data stream through a corresponding protocol library and an analysis program, and the persistence processing is carried out through a database language. The protocol transmission process has a protocol packet sticking problem (data packets are incomplete or a plurality of protocol packets are data-bonded), and special processing is required to be performed according to the protocol at this time, for example, protocol transmission cache is established, and data analysis is allowed when a program of a monitoring protocol judges that the protocol is in compliance.
5. Information display module
Web page display
Web page development is carried out on a management background and a production background of the system, and enterprise personnel inquire product production information through user-defined condition combination, screen and export the production information of product records meeting the conditions.
APP demonstration
Product information inquiry module
The module has the main function of inquiring all production information of the record of the displayed product through the RFID tag at the android terminal. The module of the employee can read the label information through the terminal RFID label read-write service, and after the unique label identification is obtained, all product information is inquired and displayed.
② product packaging prompt module
The module has the main function of displaying and prompting the product quality inspection grade at the android terminal.
Before the product is packed, suggestion billboard APP can keep reading product label information through the RFID label read write line, and when the label was read, the system will inquire whether the product quality control of current label record and information such as weight parameter exist unusually, and when having unusually, the billboard APP will use the red mode suggestion abnormal parameters of background mark, and the staff carries out corresponding processing when seeing abnormal parameters, packs at last. And prompting the completion of the packaging process.
Third, WeChat small program display
And the user scans the two-dimensional code of the product through the WeChat applet and displays the manufacturing information and the quality parameters of the product to the user according to the data field opened by the enterprise.
The user can feed back the quality problem through a small program, and the factory can obtain direct opinions and suggestions of the user.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a production is traceed back and dynamic process management system based on RFID which characterized in that: the system comprises a process module, a code assigning module, a data acquisition module, a data processing module and an information display module;
the process module comprises a back-end configuration module, a hardware-end dynamic deployment module and an android-end dynamic deployment module, wherein the back-end configuration module is used for providing a process configuration interface for an administrator, the hardware-end dynamic deployment module is used for initializing a process flow and loading configured process information, and the android-end dynamic deployment module is used for monitoring dynamic process configuration, triggering actions of part of process steps and early warning and operating on site abnormal conditions;
the code assigning module generates a connection through an RFID tag, the RFID tag stores a unique id in a section of system and is used for identifying a product, and the RFID tag is fixed on a product raw material in a sticking, adsorbing, hanging and other modes after being initialized successfully;
the data acquisition module is used for inputting system data;
the data processing module is used for processing simple data and complex data;
the information display module is used for displaying product information.
2. The RFID-based production traceability and dynamic process management system of claim 1, wherein: the hardware end of the hardware end dynamic deployment module comprises an RFID read-write module for managing a data acquisition module, a balance weight read module and an ERP passive butt joint module.
3. The RFID-based production traceability and dynamic process management system of claim 1, wherein: before the RFID tag is used, data initialization is required, and the specific steps are as follows:
step 3.1: a worker logs in a label initialization application of the handheld android terminal;
step 3.2: placing an RFID label in a read-write area behind a terminal, and triggering an RFID to read a broadcast after clicking an initialization button;
step 3.3: the program reads the labels circularly, analyzes the read label list, firstly judges whether only one label is scanned, if a plurality of labels are scanned, data writing operation is not carried out, and an interface prompts a worker to operate improperly; and if the unique label is scanned, requesting a section of unique ID code from the background and writing the label, and prompting the successful initialization by the interface.
4. The RFID-based production traceability and dynamic process management system of claim 1, wherein: the preliminary binding step of the RFID label and the product comprises the following steps:
step 4.1: printing one-dimensional codes of products and production machines in advance;
step 4.2: and (4) logging in an application program of the product label binding procedure by a worker, scanning the one-dimensional code and the RFID label through the terminal, and uploading data to a background program to finish data relation binding.
5. The RFID-based production traceability and dynamic process management system of claim 1, wherein: the data acquisition module comprises a product information initialization module, a product weight information recording module and a product quality inspection information recording module.
6. The RFID-based production traceability and dynamic process management system of claim 1, wherein: the simple data processing comprises n links, the first link generates a unique id to be bound to the RFID, meanwhile, the system can temporarily store relevant information of the link, other links can find the product id according to the RFID, record the relevant information, complete all production links, and the system can send all production information to the platform for persistent storage.
7. The RFID-based production traceability and dynamic process management system of claim 6, wherein: the storage adopts a json structure.
8. The RFID-based production traceability and dynamic process management system of claim 1, wherein: the complex data processing is to analyze the binary protocol transmitted by the electronic equipment.
9. The RFID-based production traceability and dynamic process management system of claim 1, wherein: the information display module comprises webpage display, APP display and WeChat applet display.
10. The RFID-based production traceability and dynamic process management system of claim 9, wherein: the APP display comprises a product information query module and a product packaging prompt module, wherein the product information query module is used for querying and displaying all production information recorded by a product through an RFID tag at an android terminal; the product packaging prompting module is used for displaying and prompting the product quality inspection grade at the android terminal.
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