CN105785962A - Workshop material delivery control and manage platform based on UWB - Google Patents

Abstract

A UWB-based workshop material distribution control and management platform, which includes an intelligent background control module and an automatic management module, characterized in that: the intelligent background control module includes core routing (1), communication service (2), real-time positioning (3); Core Routing (1) Provide encapsulated cross-module call interfaces to complete data routing between data sources and target groups, simplifying the complexity of data cross-transmission; communication services (2) Encapsulating communication protocols and data exchange functions to realize platform Two-way communication with the car, and send the platform control data and car running status monitoring data to the core router (1), and send the data to the database service module (5) and client service module (6) through its forwarding. The invention provides ideal data support for the workshop logistics distribution trolley, and can improve the distribution efficiency.

Description

UWB-based material distribution control and management platform for workshops

technical field

The invention relates to a logistics distribution technology, especially a logistics distribution technology for production workshop trolleys that simultaneously provides human-computer interaction support for mobile devices and PC clients. Intelligent control of material distribution, automatic management of data and UWB-based workshop material distribution control and management platform for different functional requirements of multi-user groups.

Background technique

At present, computer digital technology and network technology are widely used in the workshop production process. The easy-to-write software platform, real-time high-speed data transmission and powerful computing capabilities provide strong technical and hardware guarantees for the automation and intelligence of control and management. On this basis, through the integration and packaging of related tightly coupled functions, the establishment of a control platform can further enhance the development and practicability.

In order to display the layout of the workshop more realistically and display the real-time operation, it is usually necessary to use large-scale 3D engines such as Unity3D and Unigine to render the picture. This type of engine has powerful 3D animation capabilities, but it is not easy to get started and often requires a lot of manpower; at the same time, the control and management of material distribution requires professional knowledge and corresponding human resources.

The control platform and the smart car are a set of tightly coupled pairs: the car needs to rely on the control platform to complete a series of movements, and at the same time submit the running status for real-time monitoring; the control platform needs to understand various physical and software characteristics during the running of the car, and timely and accurately Extract its status data and issue control commands to achieve a high degree of cooperation between software and hardware. The development and debugging of embedded hardware platforms and the writing of control protocols are relatively cumbersome, and also require the support of relevant knowledge.

Enterprise resource management system (ERP), manufacturing execution system (MES), product data management (PDM) system and computer-aided process system (CAPP) are increasingly used in manufacturing workshops. During use, they require raw data, and the platform can transmit the collected data to the corresponding access system through a third-party interface

As a solution for indoor wireless positioning, UWB positioning can be applied to various positioning environments, tracking and monitoring personnel and equipment, and has the advantages of low cost, anti-multipath interference, and strong penetration ability, so it can be applied to stationary or moving objects As well as human positioning tracking, it can provide very precise positioning accuracy. In foreign countries, the system has been widely used in many industries. In the Sellafield nuclear power plant in the UK, active tags (Ubtags) are used together with a radiation meter to measure radiation intensity, which can transmit the location and radiation intensity of personnel to the background of the system in real time, which greatly facilitates the managers to monitor the safety of personnel on site. The BMW production line uses this system to perceive workers' operations and current processes in real time, while monitoring the entire operation process, greatly reducing losses caused by human error.

In view of this, in the process of workshop material distribution, it is very important to establish a control and management platform to improve distribution efficiency and reduce error rate.

Contents of the invention

The purpose of the present invention is to invent a UWB-based workshop material distribution control that integrates intelligent car communication control, real-time positioning, data storage, and user operation management, and is easy to develop and integrate, for the existing workshop distribution that has no corresponding software or platform. and management platform.

Technical scheme of the present invention is:

A UWB-based workshop material distribution control and management platform, which includes an intelligent background control module and an automatic management module, characterized in that: the intelligent background control module includes core routing 1, communication service 2, real-time positioning 3; core routing 1. Provide encapsulated cross-module call interface to complete data routing between data sources and target groups, simplifying the complexity of data cross-transmission; communication service 2. Encapsulate communication protocols and data exchange functions to realize two-way communication between the platform and the car, and transfer platform control data And the car running status monitoring data is sent to the core route 1, and the data is sent to the database service module 5 and the client service module 6 through its forwarding; the real-time positioning 3 engine sends the positioning data to the core route 1, and the location information is sent through its forwarding To communication service module 2, database service module 5 and client service module 6; Described automatic management module comprises webpage service 4, database service 5 and client service 6; Webpage service 4 realizes the human interface of PC terminal, mobile terminal Computer interaction, providing support for data analysis and chart generation; database service 5 provides storage of positioning data, car control data and car running status monitoring data, and provides data processing support for web service 4; client service 6 realizes User access, providing real-time display of global status, delivery control and platform management.

On the one hand, the core routing 1 is used to establish a clear responsibility boundary for each functional unit, provide a one-to-one or one-to-many call interface across modules, and prevent a module from directly using one or more modules during use. On the other hand, it analyzes and decomposes the received request, submits it to the corresponding module for execution, and returns the summary result to the request object; because there is a difference between whether to wait for the request result, it is necessary to use multi-threading technology according to the situation; Establish a data subscription mechanism to distribute the data generated or captured by the data source module to the subscription module according to the subscription situation.

The communication service 2 is used to establish a cache heap and management unit based on an IP node, perform heap storage, content extraction, garbage information removal and data verification of received data, and provide message generation and memory maintenance functions; establish a general The type data sender and the receiving response detector establish a message heap according to the node for the submitted message string, and perform an arrival check on the sent data. Due to the poor parallelism in the multi-car mode, the custom transaction executor performs high concurrency High-speed, large-scale data transmission and verification.

The real-time positioning 3 uses the Ubisnese system hardware as the underlying platform, uses a fixedly installed Ubisense reader to receive the UWB signal emitted by the positioning tag, and uploads the UWB signal to the positioning engine, and calculates the tag by AOA and TDOA algorithms. coordinates, and submit the resolved positioning coordinates to the core routing.

The web service 4 is used to provide a highly flexible front-end interface, including: text display, chart display; the access platform includes: IOS, Android and Windows, and the high compatibility feature generated by the ready-to-use of the web page can adapt to different resolutions. The content under the rate is displayed; it can provide historical data query, data analysis, user management, location tracking object management, and distribution car management functions.

The database service 5 is used to set up a lightweight local cache server, which performs strong data screening for the real-time data submitted by the real-time positioning 3 engine, and regularly saves it to SQLServer; saves platform operation records and trolley running status monitoring data; executes T-SQL Command execution, providing data support for web service 4.

The client service 6 can provide a multi-dimensional interface for mobile terminal access users, PC terminal common operation users and PC terminal administrator users; mobile terminal users have great flexibility, by providing them with a highly flexible screen based on the webpage 5 Resolution adaptation, eliminating the need for APP development, and providing one-click access authentication to easily connect and control nearby delivery vehicles; PC-side users distinguish the nature of their work, and ordinary users have general operation rights, which only meet basic work needs. The administrator user provides all operation rights, supports historical data query, data analysis, user management, location tracking object management, and distribution car management functions.

Beneficial effects of the present invention:

The invention provides a complete material distribution control and management platform by integrating intelligent car communication control, Ubisense real-time positioning, SQL Server high-performance data storage in computing, client and web page access support. The platform and the smart car establish a communication protocol, and at the same time independently track and verify the results of the data transmission process, and provide a convenient and concise access interface in an object-oriented form. The core routing provides a public interface for accessing all modules, which can realize synchronization among multiple modules and parallel task execution, and provide third-party interfaces for enterprise-level applications to realize data sharing.

1) The present invention proposes a control and management system for material distribution, through the Ubisense positioning system, SQLServer server, and web page services to realize the real-time communication based on Socket and support C/S, B/S architecture distribution control and management platform.

2) The present invention integrates and packages the software and hardware of the control platform and the trolley to provide users using the platform with an easy-to-understand and operate calling interface, lowering the entry threshold and improving developability.

3) The present invention adopts core routing, separates display from control and management, and provides only necessary animation driving elements in the display process to the display module through the platform, which can reduce the development workload, reduce professional technical requirements, and shorten the development cycle.

4) The present invention provides different access methods for different functional requirements of different users. The overall operating status of the platform can be checked at any time through the handheld industrial kanban, and one-click connection to the nearby smart car can be directly controlled manually; through the PC client of ordinary users, the real-time workshop operating status display based on the 3D engine can be realized, and delivery tasks can be issued; through The administrator's PC client can further realize functions such as user authority management, historical data query, data analysis, user management, location tracking object management, and distribution car management.

Description of drawings

Fig. 1 is the general frame diagram of the system of the present invention.

Fig. 2 is a system function diagram of the present invention.

in:

Figure 2-1 is the core routing function diagram.

Figure 2-2 is a communication service function diagram.

Figure 2-3 is the client service function diagram.

Figure 2-4 is a functional diagram of the database service.

Figure 2-5 is a functional diagram of the web page service.

Figure 2-6 is a real-time positioning function diagram.

Figure 3 is the flow chart of the core program of the smart car.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1-3.

A UWB-based workshop material distribution control and management platform, the overall architecture is shown in Figure 1, and the system function diagram is shown in Figure 2, which includes:

—Intelligent background control, which includes core routing1, communication service2, real-time positioning3. Core routing 1 provides an encapsulated cross-module call interface, completes data routing between data sources and target groups, and simplifies the complexity of data cross-transmission; communication service 2 encapsulates communication protocols and data exchange functions, realizes two-way communication between the platform and the car, and integrates the platform The control data and the car running status monitoring data are sent to the core route 1, and the data is sent to the database service module 5 and the client service module 6 through its forwarding; the real-time positioning 3 engine sends the positioning data to the core route 1, and through its forwarding, the position The information is sent to the communication service module 2, the database service module 5 and the client service module 6;

—Automatic management includes web page service 4, database service 5, and client service 6. Webpage service 4 realizes interface-based human-computer interaction on PC and mobile terminals, and provides support for data analysis and chart generation; database service 5 provides storage of positioning data, car control data, and car running status monitoring data, and provides data for webpage service 4 Processing support; client service 6 realizes user access under the PC client, provides real-time display of global status, delivery control and platform management.

The details are as follows:

Fig. 1 is a system frame diagram of the UWB-based workshop material distribution and control platform of the present invention, which includes core routing, communication services, real-time positioning, web page services, database services and client services.

Referring to accompanying drawing 2, there are 6 parts in Fig. 2, corresponding to core routing 1, communication service 2, real-time positioning 3, web service 4, database service 5 and client service 6 respectively.

Figure 2-1 shows the core routing, which mainly consists of two parts: task modulation and data modulation, which process task requests and data dispatch respectively. Task modulation includes task decomposition, task assignment, and cross-module execution; data modulation includes: data subscription, data submission and data distribution, as well as module control and platform monitoring to control other modules and monitor the operating status of the platform. Task decomposition means that the submitted request requires the execution results of multiple modules, so it is necessary to decompose the request itself, and then assign the decomposed tasks to the corresponding modules, and wait for the returned results. The possible situation also includes the decomposed The request requires a module to perform the decomposed task multiple times. The concept of data subscription is similar to newspaper subscription. The module informs the core routing of the content it is interested in. From the perspective of the data source, it needs to submit the data it obtains to the routing, and the routing will distribute the data according to its own built-in subscription table; The data acquirer only needs to extract the data when the data is delivered. In actual use, data transmission is quite frequent.

Figure 2-2 is the communication service, which is mainly composed of a cache, a data transmitter, a receiving response detector and a data conversion protocol. It provides communication between the delivery car and the platform. The connection method is Wi-Fi, and the Socket communication mode based on the TCP protocol. The cache heap is composed of a message generation component, a message verification component, a spam removal component, a data extraction component, a connectivity detector component, and a memory maintenance component; the data packet is used as the basic unit, and the corresponding parameter data of the identification code is added. The data sender is executed based on the transaction sender. By using the 10ms clock, thread pool and independent thread, the delay arrival detection of the sent data is performed; in order to improve the sensitivity and reduce the response time, the nested receiving feedback identifies the near channel, and binds the object with the Data packets, and establish the mapping relationship between them. The maximum startup time of the transaction executor from idle time to work is 10ms.

Figure 2-3 shows real-time positioning, mainly composed of engine management, cache heap, and data processing. Initialize the configuration through the engine control component, start the hardware, and then send the received data to the cache stack through the data conversion protocol; adaptive filtering combines median filtering and underlying filtering algorithms, and performs targeted filtering according to the type of tracking object to achieve position self-correction. and further regularize the data.

Figure 2-4 is a webpage service, mainly composed of two parts: script generation and interface generation. For the submitted request, the script component generates the SQLServer script and submits it for execution through the core routing; it performs interactive display of visual graphics according to the display resolution of different devices.

Figure 2-5 shows the database service, mainly composed of local server and network server. Among them, the local server is a lightweight SQLite server, which mainly caches local data for a short period of time, and at the same time performs strong location screening for positioning data to generate historical data, generates logs for platform operations, and performs performance monitoring records for running status; the network server is SQLServer2008R2 , through the data migration component, the data processed by SQLite can be transferred to the network server, and at the same time, it can provide command script operation, call interface support and data maintenance functions through software and hardware.

Figure 2-6 shows the client service, which is mainly composed of cache stack and other functions. Differentiate user groups according to different login users and login methods, and provide different permission functions; for ordinary users on the PC side, provide functions such as user tracking object location refresh, task submission, real-time display, etc.; for PC management users, provide in-transit delivery vehicle management , target access, global catch-up object positioning refresh, user management, data analysis and other functions; for handheld kanban users, it provides a simplified version of the delivery status display, one-click delivery vehicle access authentication and other functions.

Figure 3 is a flow chart of the control program of the distribution car matched with the platform. Before starting the delivery, the platform sends a set of delivery tasks to the car. After the car completes the task group information confirmation, it completes each delivery task in turn through loop control until all tasks are completed, and then waits for a new delivery task to be issued. During the distribution process, the car calculates the current running attitude according to the task details, positioning data and sensor data, compares it with the target attitude and performs trajectory correction.

The parts not involved in the present invention are the same as the prior art or can be realized by adopting the prior art.

Claims (7)

1. A UWB-based workshop material distribution control and management platform, which includes an intelligent background control module and an automatic management module, characterized in that: the intelligent background control module includes core routing (1), communication service (2), Real-time positioning (3); core routing (1) provides encapsulated cross-module call interfaces to complete data routing between data sources and target groups, simplifying the complexity of data cross-transmission; communication services (2) encapsulating communication protocols and data exchange functions, Realize two-way communication between the platform and the car, and send the platform control data and car running status monitoring data to the core routing (1), and send the data to the database service module (5) and client service module (6) through its forwarding; real-time positioning (3) The engine sends the positioning data to the core routing (1), and forwards the location information to the communication service module (2), database service module (5) and client service module (6); the automatic management The modules include web service (4), database service (5) and client service (6); web service (4) realizes interface-based human-computer interaction on PC and mobile terminals, and provides support for data analysis and chart generation; database service ( 5) Provide positioning data, car control data and car running status monitoring data storage, and provide data processing support for web service (4); client service (6) realize user access under PC client, provide real-time global status Display, delivery control and platform management. 2. The UWB-based workshop material distribution control and management platform according to claim 1, characterized in that the core routing (1) is used to establish clear responsibility boundaries for each functional unit on the one hand, and provide a cross-module For one or one-to-many call interfaces, prevent a module from directly using one or more other module resources across modules during use; on the other hand, analyze and decompose received requests, submit them to corresponding modules for execution, and summarize them The result is returned to the request object; because there is a difference whether to wait for the request result, multi-threading technology needs to be used according to the situation; a data subscription mechanism is established to distribute the data generated or captured by the data source module to the subscription module according to the subscription situation. 3. The UWB-based workshop material distribution control and management platform according to claim 1, characterized in that the communication service (2) is used to establish a cache stack and management unit based on IP nodes, and process the received data Heap storage, content extraction, spam removal and data verification, and provide message generation and memory maintenance functions; establish a general-purpose data sender and receive response detector, build a message heap according to the node for the submitted message string, and send The data is checked for arrival. Due to the poor parallelism in the multi-car mode, the customized transaction executor performs high-speed, large-scale data transmission and verification under high concurrency. 4. The UWB-based workshop material distribution control and management platform according to claim 1, characterized in that the real-time positioning (3) uses the Ubisnese system hardware as the underlying platform and uses a fixedly installed Ubisense reader for Receive the UWB signal transmitted by the positioning tag, upload the UWB signal to the positioning engine, calculate the coordinates of the tag through the AOA and TDOA algorithms, and submit the resolved positioning coordinates to the core routing. 5. The UWB-based workshop material distribution control and management platform according to claim 1, characterized in that the web service (4) is used to provide a highly flexible front-end interface, including: text display, chart display; access The platform includes: IOS, Android and Windows, through the high-compatibility feature of the ready-to-use and generated web pages, it can adapt to the content display at different resolutions; it can provide historical data query, data analysis, user management, location tracking object management, delivery car management functions. 6. The UWB-based workshop material distribution control and management platform according to claim 1, characterized in that the database service (5) is used to establish a lightweight local cache server, for real-time positioning (3) submitted by the engine Strong data screening of real-time data, regularly saved to SQLServer; save platform operation records and trolley running status monitoring data; execute T-SQL command execution, and provide data support for web service (4). 7. The UWB-based workshop material distribution control and management platform according to claim 1, characterized in that the client service (6) can provide mobile-side access users, PC-side common operation users and PC-side administrators Multi-dimensional interface for users; mobile users have great flexibility. By providing them with highly flexible screen resolution adaptation based on web pages (5), APP development is exempted, and at the same time, one-click access authentication is provided for easy connection and control Nearby delivery carts; PC-side users distinguish the nature of their work. Ordinary users have general operation rights, which only meet basic work needs. Administrator users provide all operation rights, and support historical data query, data analysis, user management, and location tracking object management. , Delivery car management function.