CN1428733A - Information collecting and monitoring system - Google Patents

Abstract

The information collection and monitoring system for stamping field information management includes at least an information collector, a monitoring computer placed in the exterior of the stamping field and a server data base. Every information collector is directly connected with field machine to obtain real-time field production information related to the machine, the monitoring computer is connected with field information collector by means of communication network, so that said collected field productino information can be stored into the server database. Said server database has all the basic materials necessary for said system and all the field production informations, the user can utilize internal network to connect with said server computer for storing and taking related information to implement real-time production management.

Description

Information collection and monitoring system

【Field of Invention】

The present invention relates to an information collection and monitoring system, in particular to an information collection and monitoring system suitable for stamping sites to collect and monitor real-time production information.

[Background of the invention]

With the unpredictable changes in market demand and the development of globalization, the modern manufacturing industry is facing a new competitive environment for survival due to shorter and shorter delivery deadlines, various customer needs, high-quality products and low manufacturing costs. The production plant site is a basic part of a manufacturing enterprise, and its production information becomes an important basis for production management. The earliest production information collection was manual operation, so the obtained data lacked timeliness and accuracy, and the data were too complex to sort out and analyze, and it was difficult to find the key points of the problem. Therefore, it is necessary for the production site of the manufacturing industry to establish a system that can quickly obtain information from the site and respond to changes in the site to improve the efficiency and accuracy of decision-making. With the wide application of mature information technology, the method of collecting on-site data has developed from traditional dictation, manual work on paper, and manual input into terminals to the current automatic collection of data. The currently commonly used technology for automatic collection of on-site data is bar code ( Barcode) technology, the feature of this technology is that all products and devices on the production site are marked with barcodes, and the operators directly scan these barcodes with a barcode scanner (Barcode Reader) on site, and the obtained information is automatically stored in the monitoring system. inside the computer. Although this technology solves the problem of manual data collection, it does not achieve complete automation, and it takes a lot of cost to label products and equipment with barcodes. Moreover, most of the current production machine tools are equipped with signal sensors, and the prior art does not make full use of these sensory signals to achieve the purpose of automatically collecting data.

【Content of invention】

In the information collection and monitoring system of the present invention, its information collection device can automatically obtain machine tool perception signals, and convert them into computer-recognizable signals and store them in the database, so that users can control the on-site production status at any time outside the production site ; At the same time, it is also convenient for users to monitor the production status of all machine tools scattered in different places.

In the information collection and monitoring system of the present invention, each item of information in the production process, including production abnormalities, is recorded and stored in the database, which is convenient for users to use historical record analysis to adjust the current production status, solve current production abnormalities and forecast Future production status including mold life.

The present invention provides an information collection and monitoring system suitable for the stamping site, which includes a plurality of information collectors, which are respectively installed on each independent machine tool in the production site to obtain information including machine tool status, mold status and production information and other real-time on-site information, and convert these information into computer-recognizable information; it also includes a monitoring computer located outside the production site, and all machine tools and their corresponding information collectors are connected to the monitoring computer through a communication network. The monitoring computer stores information grabbing instructions, which are responsible for grabbing real-time information from the collector. All the real-time information captured by the monitoring computer is stored in a server database, and the user terminal is connected to the server database through a personal computer through the enterprise internal network to obtain the on-site real-time information stored in it. Each machine tool is set with a specific The network ID identifies its specific identity in the entire system, so that users can identify the corresponding information.

Through the above information collection and monitoring system and its method, on-site real-time information can be transmitted between the production site and the management department outside the production site, and the production personnel can quickly solve production abnormal problems, ensuring the continuity of production, and at the same time, the management personnel do not come in person The site can also monitor the production site at any time, grasp the production status of the site, and provide reliable information for various decisions.

【Description of drawings】

Fig. 1 is an overall structure diagram of the information collection and monitoring system of the present invention.

Fig. 2 is a data flow chart of the information collection and monitoring system of the present invention.

Fig. 3 is a graphical user interface of the information collection and monitoring system of the present invention.

Fig. 4 is a diagram of internal functional modules of the information collection and monitoring system of the present invention.

Fig. 5 is a flow chart of the main operation of the information collection and monitoring system of the present invention.

Fig. 6 is a flow chart of user authority setting in the information collection and monitoring system of the present invention.

【Example Description】

As shown in FIG. 1 , it is an overall architecture diagram of the information collection and monitoring system of the present invention. The stamping machine tools 11 are distributed in different production locations throughout the factory, and an information collector 12 is installed corresponding to each machine tool. The stamping machine tool 11 is generally equipped with a variety of different sensors (not shown in the figure), which respectively represent different information about current production, such as safety detection sensors, which indicate current production safety information. The information collector 12 is connected to the machine tool to obtain these sensory signals and convert them into computer-recognizable information. The monitoring computer 14 can be placed in any place outside the production site, and it is mainly responsible for grabbing on-site production information from the information collector 12 and storing it in the server database 16 . The monitoring computer 14 stores self-defined information capture instruction codes, and the production information therein is obtained by transmitting these instruction codes to the information collector 12 . There is also an output device 15 connected with the monitoring computer 14, which can be a printer or a terminal display device for printing or displaying abnormal production information. All production-related information is stored in the server database 16 . At the user terminal, relevant information can be accessed from the server database 16 through a general-purpose personal computer 17 . In the whole production place, all information collectors 12 are connected with the monitoring computer 14 by connection 13, and connection 13 is a kind of communication network, and in the present embodiment, is a kind of local area network-485 network that is specially applicable to the factory, because the factory The environment has a lot of interference on the signal. This 485 network is a standard network with strong anti-interference ability and long transmission distance specially formulated for the characteristics of factories. The connection 18 between the monitoring computer 14, the output device 15 and the server database 16, and between the user computer 17 and the server database 16 is a general enterprise internal network.

As shown in Figure 2, it is a data flow chart of the information collection and monitoring system of the present invention. The information flow of the system is divided into two types, one is the information collection and storage information from the machine tool, and the other is the user’s basic data setting, production scheduling and feedback on real-time production information.

Firstly, the information collection and storage information from the direction of the machine tool is explained. The information acquired by the collector 12 from the machine tool 11 includes machine tool status 21 , mold status 22 , counter information 23 and SPM (shocks per minute) 24 . The machine tool state 21 is the current state of the machine tool, including states such as unarranged, waiting for material, production, mold trial, and mold repair. Unarranged means that the machine tool is currently idle; Waiting means that the machine tool has been arranged, but production has not yet started; Production means that the machine tool is currently in production; Trial mode means that the machine tool is currently trial running molds and has no formal production; Mold repair means that the mold on the machine tool is under repair, and the operator can choose to replace the mold or wait for the mold to be repaired before reproducing. According to the state 21 of the machine tool, the operator can decide whether to adjust the current arrangement and how to arrange the future production. The mold condition 22 includes the current number of impacts, the cumulative number of impacts and safety information. When the mold has an abnormal state 26, the safety information will be displayed as abnormal. According to this information, the operator can quickly find out the cause of the abnormality and solve the problem in real time, so as to keep the production as stable as possible. Persistent. The counter information 23 includes production man-hours, impact times, production quantities, and the like. SPM 24 is the number of impacts per minute, which is calculated according to the current number of impacts and the elapsed time. With the continuous change of the current number of impacts, SPM 24 will also change accordingly. For each mold, a standard SPM value is set. The operator judges and predicts the service life of the mold according to the current SPM 24 value and the standard SPM value. Abnormal conditions 26 include mold abnormalities and machine tool abnormalities, and any abnormal phenomena in the production process are recorded and stored in the server database 16 . All the information captured by the monitoring computer 14 is stored in the server database 16 .

Next, the information feedback from users is explained. The user accesses the server database 16 through a general-purpose personal computer 17 through the intranet of the enterprise, and accesses relevant information according to requirements. The user can analyze and judge the cause 210 of the current abnormal condition according to the abnormal condition 26 and the historical record of the abnormal condition stored in the server database, and store the cause in the server database 16 for later query as a reference for abnormal cause analysis.

Finally, explain the production scheduling and basic data setting. Weekly allocation 27 refers to the production quantity of a certain week allocated according to the production plan, including attributes such as year, allocation week, material number, product name (referring to product name), order number, work order number, and work order quantity. In this embodiment, assuming that the factory is order-based production, the production arrangement is determined according to each order. An order may include a product name, corresponding to multiple material numbers, and a work order number generally corresponds to the production of a product. The quantity of work order is the production quantity of this kind of product. Daily arrangement 28 is based on the specific production arrangement of the weekly arrangement, including the date of arrangement, start and end time of arrangement, material number, product name, quantity of arrangement, line type and mold number, etc., indicating the start and end time of production, production The types of products and their quantities, the machine tools and molds to be used, etc. The operator can adjust the daily production schedule according to the specific production situation. Weekly schedule 27 and daily schedule 28 can be entered manually one by one, or the reports that have already been scheduled can be imported automatically. Basic information 29 includes basic information on machine tools, basic information on molds, basic information on material numbers, etc. The basic information of machine tools includes line type, model, 485 network number, etc. Line type refers to the production line of a product, which may correspond to one machine tool or multiple machine tools. The 485 network number represents the number of the machine tool in the network, so as to capture its corresponding information. The basic information of the mold includes information such as the mold number, the corresponding relationship with the material number, the standard punching times, the number of punching warnings, the standard SPM value and the upper and lower limits of the SPM value. The corresponding relationship between the model number and the material number is a many-to-many relationship.

As shown in FIG. 3 , it is a graphical user interface of the information collection and monitoring system of the present invention. After the user logs in to the system, what he sees is a miniature picture of the site. Each machine tool on site is displayed in the form of a miniature icon. The arrangement of all machine tools is consistent with the site, which is convenient for users who are familiar with the site to quickly find the corresponding control of machine tools. The user only needs to move the mouse to the icon of the machine tool to be viewed, and the relevant information corresponding to the current machine tool will be displayed in the blank space of the interface. In conjunction with Fig. 4, it is a functional block diagram of the information collection and monitoring system of the present invention, corresponding to modules such as basic data, viewing, query and reports on the functional frame of Fig. 3, wherein viewing module 42 functions to switch screens, corresponding to Each machine tool can display different information related to the machine tool, including order 421, work order 422, material number 423, line number 424, machine status 425, mold number 426 and counter 427, etc. If you click the browse order sub-module 421, the order information corresponding to the machine tool will be displayed, and click the browse material number sub-module 423 to display the material number information corresponding to the machine tool, and so on, if you switch to a different sub-module, it will display Information corresponding to this submodule. The query module 43 includes sub-modules such as mold status 431 , machine tool status 432 , all machine tool status 433 and production information 434 . Among them, mold status 431 and machine tool status 432 display historical information of molds and machine tools; all machine tool status 433 displays current information of all machine tools. In the graphical interface, only the current information of a certain machine tool can be displayed. If the user wants to know all the information of the machine tool, he can realize it by clicking the sub-module. The production information 434 displays information such as the production quantity of all current machine tools. The report output module 44 is used to generate and output reports in a fixed format, including a real-time production report 441 , a statistical report 442 on mold abnormalities, a statistical table 443 on cumulative strokes and abnormalities of molds, and a statistical table 444 on working hours. The basic data module 41 is used to set and maintain various basic data 29 and user authority management. It includes six sub-modules including weekly arrangement 411, daily arrangement 412, basic mold information 413, basic information of machine tools 414, basic information of material number 415 and authority management 416. The authority management 416 includes group setting and user authority management, and the specific operation flow is shown in FIG. 6 and its description.

As shown in Fig. 5, it is a flow chart of the main operation of the information collection and monitoring system of the present invention. First, the user logs into the system according to the personal account number and password (step 51), then sets the basic data 29 according to the personal authority (step 52), and stores the basic data in the server database 16 after the basic data is set. The monitoring computer 14 is defined with information capture instructions 25 corresponding to all machine tool molds in the basic data 29, through which information capture instructions 25 are used to capture real-time on-site information in real time (step 53), and store it in the server database 16 (step 512). The user queries on-site real-time information according to the operation requirements (step 54), and outputs the information in a certain format report (step 513), and at the same time judges whether it is necessary to establish or adjust the production schedule according to the current production status in the query information (step 55) , if necessary, then judge whether to manually input (step 56), if it is manual input, input arrangement instruction one by one and store in the server database 16 (step 512) or report output (step 513). If not manually input, then select the pre-existing scheduling table (step 57), directly import the scheduling table into the system (step 58), and the system will automatically execute the production scheduling instruction. If there is abnormal production information (step 59) shown in the information of inquiry, then query the history record (step 510) about abnormal reason in the server database, analyze the reason (step 511) that this production abnormal situation takes place, so that processing is made in real time, Ensure continuous production. The reason for the production abnormality is stored in the server database 16, so as to be used as a reference for analyzing the reason for the abnormality later. If report output is required, the information is output in a certain format (step 513).

As shown in FIG. 6 , it is a flow chart of user authority setting of the information collection and monitoring system of the present invention. The present invention manages user rights in the manner of group rights. First, the administrator sets groups with different permissions according to the current needs (step 61), and then users (including operators, production management personnel and supervisors, etc.) apply for personal account numbers and passwords from the administrator according to individual needs (step 62) , the administrator selects the group corresponding to the user's account according to the user's situation. If the authority required by the user belongs to the set group (step 63), then directly select the corresponding group, one account can select multiple groups, and its final authority is the sum of the authority of the multiple groups. If the authority that the user needs is not in the group that has been set, then the administrator can apply for a custom group and its authority (step 64) according to the user, store it in the server database, and then select the group to which the user belongs (step 65). Groups are used to manage user permissions, and groups can be customized, so user types and permissions are scalable and flexible.

Claims (10)

1. An information collection and monitoring system that can automatically capture real-time information on the production site to monitor the production site in real time, is characterized in that it includes: At least one information collection device for collecting production site information, which is installed on the machine tool at the production site, automatically obtains machine tool perception signals, and converts them into computer-recognizable information; A monitoring computer placed outside the production site, which can automatically read on-site real-time information from the information collection device; A server database that stores the basic data needed to run the system and the on-site real-time information read by the monitoring computer; A user can browse the real-time information of the site to monitor the interactive user interface of the production site. 2. The information collection and monitoring system according to claim 1, wherein the machine tool perception signal corresponds to various on-site real-time information, including machine tool information, mold information and current production information. 3. The information collection and monitoring system according to claim 1, wherein the machine tool is a stamping machine tool. 4. The information collection and monitoring system as claimed in claim 1, characterized in that: wherein the basic data include basic data of machine tools and molds, which are defined with standard status values and deviation ranges for the normal operation of the machine tool, and on-site real-time data acquired in real time. Information comparison can warn the safety status of machine tools and molds. 5. A method of information collection and monitoring that can automatically capture real-time information on the production site to monitor the production site in real time, is characterized in that it comprises the following steps: (a) Provide at least one information collection device, which is installed on the machine tool at the production site to obtain the sensory signal of the machine tool and convert it into computer-recognizable information; (b) Provide a monitoring computer placed outside the production site to connect with the information collection device on the production site, so as to read the real-time information on site; (c) Provide a server database connected to the monitoring computer so as to store the on-site real-time information read by the monitoring computer; (d) Provide an interactive monitoring system, which is convenient for users to check the real-time information of the site to monitor the production site in real time. 6. The information collection and monitoring method according to claim 5, further comprising a step of the monitoring computer reading real-time information from the information collection device through the information grabbing instruction therein. 7. The information collection and monitoring method according to claim 5, further comprising the step of warning the life of the mold through the mold condition information in the on-site real-time information. 8. The information collection and monitoring method according to claim 5, further comprising the step of processing the abnormal production status in real time through the production abnormal status information in the on-site real-time information read by the monitoring computer. 9. The information collection and monitoring method according to claim 5, wherein the step (d) further includes the step of outputting real-time information in a report format in a prescribed format. 10. The information collection and monitoring method according to claim 5, wherein the monitoring of the stamping site further includes the step of establishing a production scheduling form in a prescribed format.

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