CN103078407B - Intelligent control system for microgrid - Google Patents
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Abstract
本发明公开了一种微电网智能控制系统，包括微电网能量管理单元、中央控制单元以及分布式控制单元；所述中央控制单元分别与微电网能量管理单元和分布式控制单元连接；所述微电网能量管理单元用于实现微电网最优的能量匹配；所述中央控制单元根据微电网能量管理单元的综合运行控制指令下达指令给分布式控制单元；所述分布式控制单元控制发电单元或储能装置。本发明通过将整个系统分为不同的逻辑块，细化了系统功能，大大降低了系统开发和维护的成本。
The invention discloses a micro-grid intelligent control system, which includes a micro-grid energy management unit, a central control unit and a distributed control unit; the central control unit is respectively connected with the micro-grid energy management unit and the distributed control unit; The grid energy management unit is used to realize the optimal energy matching of the micro-grid; the central control unit issues instructions to the distributed control unit according to the comprehensive operation control command of the micro-grid energy management unit; the distributed control unit controls the power generation unit or storage capable device. The invention refines the system functions by dividing the whole system into different logic blocks, and greatly reduces the cost of system development and maintenance.
Description
技术领域 technical field
本发明涉及微电网控制系统技术领域，具体涉及一种微电网智能控制系统。 The invention relates to the technical field of microgrid control systems, in particular to a microgrid intelligent control system.
背景技术 Background technique
进入21世纪以来，随着石油、煤炭等资源储量的不断下降，世界范围内的能源供应持续紧张，开发利用清洁高效的可再生能源成为解决未来能源问题的主要出路。目前应用较为广泛的几种新能源包括太阳能、风能、燃料电池等，均为分布式电源（Distributed Energy Resources，DER），相应的一些发电技术称为分布式发电技术（Distributed Generation，DG）。将分布式发电技术与大电网相结合，被国内外许多专家学者认为是降低能耗、提高电力系统安全性和灵活性的主要方式，但分布式发电技术对大电网的影响却是一个不得不考虑的重要问题。为了能充分利用分布式发电所带来的经济效益，同时提高可靠性，并尽量减少其对主网的冲击，微电网（microgrid）的概念被提了出来。 Since the beginning of the 21st century, with the continuous decline of oil, coal and other resource reserves, the world's energy supply has continued to be tense, and the development and utilization of clean and efficient renewable energy has become the main way to solve future energy problems. At present, several new energy sources that are widely used include solar energy, wind energy, fuel cells, etc., all of which are distributed power sources (Distributed Energy Resources, DER), and some corresponding power generation technologies are called distributed generation technologies (Distributed Generation, DG). Combining distributed power generation technology with large power grids is considered by many experts and scholars at home and abroad to be the main way to reduce energy consumption and improve the security and flexibility of power systems, but the impact of distributed power generation technology on large power grids is an unavoidable important issues to consider. In order to make full use of the economic benefits brought by distributed power generation, improve reliability, and minimize its impact on the main grid, the concept of microgrid (microgrid) was proposed.
微电网是规模较小的独立分散系统，采用大量的现代电力技术，将燃气轮机、风电、光伏发电，燃料电池及储能设备等合并在一起，直接接在用户侧。对于大电网而言，微电网可被视为电网中的一个可控单元，它可以在数秒钟内动作以满足外部输配电网络的需求；另一方面，微电网还可满足用户的特定需求，如提高本地可靠性、保持本地电压稳定、通过利用余热提高能量利用效率及提供不间断电源等。微电网和大电网通过能量交换，二者互为备用，从而大大提高供电可靠性。 A microgrid is a small-scale independent decentralized system that uses a large number of modern power technologies to combine gas turbines, wind power, photovoltaic power generation, fuel cells, and energy storage equipment, and connect them directly to the user side. For the large power grid, the microgrid can be regarded as a controllable unit in the grid, which can act within seconds to meet the needs of the external transmission and distribution network; on the other hand, the microgrid can also meet the specific needs of users , such as improving local reliability, maintaining local voltage stability, improving energy utilization efficiency by utilizing waste heat, and providing uninterruptible power supply, etc. The micro grid and the large grid exchange energy, and the two serve as backups for each other, thereby greatly improving the reliability of power supply.
微电网具备智能性、灵活性、环保以及能量利用的多元化等优点，势必将成为未来电网的重要发展方向。在我国，有关分布式能源系统的集成及控制研究与发达国家相比还有很大的差距，一些高校和研究机构的研究工作多集中于单个分布式发电设备和电站系统等硬件的研制，或者小型独立风力发电/太阳能发电/柴油机系统集成。但从微电网角度出发，对基于风能、太阳能、燃料电池等分布式发电单元与负载、储能环节构成的微网系统稳定运行与控制理论、最佳匹配控制策略，并且考虑可再生能源发电电源和负载随机性的条件下，微网系统在线智能控制系统的研究还涉足很少，这严重阻碍我国分布式能源系统的推广应用和有关产业的做大做强。因此研究开发更加网络化和智能化的微电网实时在线智能控制系统，将EMS系统与WEB相融合，提高系统的扩展性和兼容性，具有较高的现实意义和应用价值。 With the advantages of intelligence, flexibility, environmental protection and diversified energy utilization, the microgrid is bound to become an important development direction of the future power grid. In my country, there is still a big gap in research on the integration and control of distributed energy systems compared with developed countries. The research work of some universities and research institutions is mostly focused on the development of hardware such as single distributed power generation equipment and power station systems, or Small independent wind power generation/solar power generation/diesel engine system integration. However, from the perspective of the microgrid, the stable operation and control theory and optimal matching control strategy of the microgrid system based on distributed power generation units such as wind energy, solar energy, and fuel cells, and loads and energy storage links, and the consideration of renewable energy power generation Under the conditions of load randomness and load randomness, the research on the online intelligent control system of the microgrid system is still very little, which seriously hinders the promotion and application of distributed energy systems in my country and the expansion and strengthening of related industries. Therefore, the research and development of a more networked and intelligent microgrid real-time online intelligent control system, which integrates the EMS system with the WEB, and improves the scalability and compatibility of the system, has high practical significance and application value.
发明内容 Contents of the invention
本发明提出了一种微电网智能控制系统，能够为包括光伏发电、风力发电、燃料电池发电等分布式电源和蓄电池储能单元提供监视和控制功能。本发明的微电网智能控制系统包括微电网能量管理单元、中央控制单元和分布式控制单元，该微电网智能控制系统可以对整个微电网设备运行状态进行监视，并根据当前微电网运行状态，采用微电网稳定运行与控制理论，选择最佳匹配控制策略，针对分布式电源不同的特点，对微电网能量供给进行智能控制，充分发挥微电网低碳、经济的优势。本发明采用分层的方式来架构系统，通过将整个系统分为不同的逻辑块，细化了系统功能，大大降低了系统开发和维护的成本。 The invention proposes a micro-grid intelligent control system, which can provide monitoring and control functions for distributed power sources including photovoltaic power generation, wind power generation, fuel cell power generation, and battery energy storage units. The microgrid intelligent control system of the present invention includes a microgrid energy management unit, a central control unit, and a distributed control unit. The microgrid intelligent control system can monitor the operating status of the entire microgrid equipment, and according to the current microgrid operating status, adopt Based on the stable operation and control theory of the micro-grid, select the best matching control strategy, and intelligently control the energy supply of the micro-grid according to the different characteristics of the distributed power supply, and give full play to the low-carbon and economical advantages of the micro-grid. The present invention adopts a layered approach to structure the system, and by dividing the whole system into different logical blocks, the system functions are refined, and the cost of system development and maintenance is greatly reduced.
本发明是通过下述方案予以实现的： The present invention is achieved by the following scheme:
一种微电网智能控制系统，包括微电网能量管理单元、中央控制单元以及分布式控制单元；所述中央控制单元分别与微电网能量管理单元和分布式控制单元连接；所述微电网能量管理单元用于实现微电网最优的能量匹配；所述中央控制单元根据微电网能量管理单元的综合运行控制指令下达指令给分布式控制单元；所述分布式控制单元控制发电单元或储能装置的工作。 A micro-grid intelligent control system, including a micro-grid energy management unit, a central control unit, and a distributed control unit; the central control unit is respectively connected to the micro-grid energy management unit and the distributed control unit; the micro-grid energy management unit It is used to realize the optimal energy matching of the micro-grid; the central control unit issues instructions to the distributed control unit according to the comprehensive operation control command of the micro-grid energy management unit; the distributed control unit controls the work of the power generation unit or the energy storage device .
所述微电网能量管理单元接受电网调度/控制指令，并根据当前微电网运行状态以及各分布式发电单元的特点，通过优化计算形成中央控制单元的综合运行控制指令，同时收集处理各分布式控制单元上传的各子系统运行信息，评估当前微电网运行状态。 The microgrid energy management unit accepts grid dispatching/control instructions, and according to the current microgrid operating status and the characteristics of each distributed power generation unit, forms the comprehensive operation control instructions of the central control unit through optimization calculations, and collects and processes each distributed control unit at the same time. The operating information of each subsystem uploaded by the unit evaluates the current operating status of the microgrid.
所述微电网能量管理单元为微电网调度控制中心提供数据管理、监视、控制和优化，保障微电网的稳定高效运行； The microgrid energy management unit provides data management, monitoring, control and optimization for the microgrid dispatch control center to ensure the stable and efficient operation of the microgrid;
所述中央控制单元完成微电网运行控制和模式切换；通过接收微电网能量管理单元的综合运行控制指令，转换成各子系统指令，下发给分布式控制单元执行，实现并/离网的稳定运行；同时采集各分布式控制单元的实时运行数据，并上传至微电网能量管理单元； The central control unit completes the operation control and mode switching of the microgrid; by receiving the comprehensive operation control instructions of the energy management unit of the microgrid, it is converted into instructions of each subsystem, and sent to the distributed control unit for execution, so as to realize the stability of on/off grid Operation; collect the real-time operation data of each distributed control unit at the same time, and upload it to the energy management unit of the microgrid;
所述分布式控制单元接受并执行中央控制单元下达的指令，控制发电单元或储能装置投入或停止运行，投入或切除负荷；并将各子系统运行信息实时上传至中央控制单元。 The distributed control unit accepts and executes the instructions issued by the central control unit, controls the power generation unit or the energy storage device to start or stop running, puts on or removes the load; and uploads the operation information of each subsystem to the central control unit in real time.
与现有技术相比，本发明的优点和有益效果是：本发明通过将整个系统分为不同的单元，细化了系统功能，大大降低了系统开发和维护的成本；可根据当前微电网运行状态，采用微电网稳定运行与控制理论，选择最佳匹配控制策略，针对分布式电源不同的特点，对微电网能量供给进行智能控制，充分发挥微电网低碳、经济的优势。 Compared with the prior art, the advantages and beneficial effects of the present invention are: the present invention refines the system functions by dividing the whole system into different units, and greatly reduces the cost of system development and maintenance; it can operate according to the current microgrid State, using the stable operation and control theory of the micro-grid, selecting the best matching control strategy, and intelligently controlling the energy supply of the micro-grid according to the different characteristics of the distributed power supply, and giving full play to the low-carbon and economical advantages of the micro-grid.
附图说明 Description of drawings
图1为本发明的微电网智能控制系统结构图。 Fig. 1 is a structural diagram of the microgrid intelligent control system of the present invention.
图2为本新型实用的能量管理单元示意图。 Fig. 2 is a schematic diagram of a practical energy management unit of the present invention.
图3为本新型实用的能量管理单元功能结构图。 Fig. 3 is a functional structural diagram of the practical energy management unit of the present invention.
具体实施方式 Detailed ways
下面结合附图对本发明提供的智能控制系统作进一步的描述。 The intelligent control system provided by the present invention will be further described below in conjunction with the accompanying drawings.
如图1所示，一种微电网智能控制系统包括微电网能量管理单元、中央控制单元以及分布式控制单元；所述中央控制单元分别与微电网能量管理单元和分布式控制单元连接；所述分布式控制单元由负荷控制器、分布式发电单元控制器、储能控制器组成；所述微电网能量管理单元用于实现微电网最优的能量匹配；所述中央控制单元根据微电网能量管理单元的综合运行控制指令下达指令给分布式控制单元；所述分布式控制单元控制发电单元或储能装置。 As shown in Figure 1, a microgrid intelligent control system includes a microgrid energy management unit, a central control unit, and a distributed control unit; the central control unit is connected to the microgrid energy management unit and the distributed control unit respectively; the The distributed control unit is composed of a load controller, a distributed power generation unit controller, and an energy storage controller; the microgrid energy management unit is used to realize the optimal energy matching of the microgrid; the central control unit is based on the microgrid energy management The integrated operation control command of the unit sends a command to the distributed control unit; the distributed control unit controls the power generation unit or the energy storage device.
所述微电网能量管理单元接受电网调度/控制指令，并根据当前微电网运行状态以及各分布式发电单元的特点，通过优化计算形成中央控制单元的综合运行控制指令，同时收集处理各分布式控制单元上传的各子系统运行信息，评估当前微电网运行状态。 The microgrid energy management unit accepts grid dispatching/control instructions, and according to the current microgrid operating status and the characteristics of each distributed power generation unit, forms the comprehensive operation control instructions of the central control unit through optimization calculations, and collects and processes each distributed control unit at the same time. The operating information of each subsystem uploaded by the unit evaluates the current operating status of the microgrid.
所述微电网能量管理单元为微电网调度控制中心提供数据管理、监视、控制和优化，保障微电网的稳定高效运行； The microgrid energy management unit provides data management, monitoring, control and optimization for the microgrid dispatch control center to ensure the stable and efficient operation of the microgrid;
所述中央控制单元完成微电网运行控制和模式切换；通过接收微电网能量管理单元的综合运行控制指令，转换成各子系统指令，下发给分布式控制单元执行，实现并/离网的稳定运行；同时采集各分布式控制单元的实时运行数据，并上传至微电网能量管理单元； The central control unit completes the operation control and mode switching of the microgrid; by receiving the comprehensive operation control instructions of the energy management unit of the microgrid, it is converted into instructions of each subsystem, and sent to the distributed control unit for execution, so as to realize the stability of on/off grid Operation; collect the real-time operation data of each distributed control unit at the same time, and upload it to the energy management unit of the microgrid;
所述分布式控制单元接受并执行中央控制单元下达的指令，控制发电单元或储能装置投入或停止运行，投入或切除负荷；并将各子系统运行信息实时上传至中央控制单元。 The distributed control unit accepts and executes the instructions issued by the central control unit, controls the power generation unit or the energy storage device to start or stop running, puts on or removes the load; and uploads the operation information of each subsystem to the central control unit in real time.
所述微电网能量管理系统与中央控制单元之间采用以太网接口，遵循IEC61850、IEC61499协议，实现对微电网设备监视和控制，保障微电网的稳定高效运行。根据微电网内各设备的实际情况，微电网中央控制单元与分布式控制单元之间的通信方式包括RS485、CAN总线、以太网等。 The Ethernet interface is used between the microgrid energy management system and the central control unit, following the IEC61850 and IEC61499 protocols, to monitor and control the microgrid equipment and ensure the stable and efficient operation of the microgrid. According to the actual situation of each device in the microgrid, the communication methods between the central control unit of the microgrid and the distributed control unit include RS485, CAN bus, Ethernet, etc.
所述微电网能量管理单元包括表示层、功能层、数据层和控制层，为微电网调度控制中心提供数据管理、监视、控制和优化，该单元采用J2EE框架技术SSI（Struts + Spring + Ibatis）进行设计，其中 Struts 用于系统控制，Spring 充当系统容器实现解耦，而 Ibatis 则用于持久层开发。整个系统通过 XML 配置文件实现了 SSI 的无缝整合，提高系统的可维护性。 The microgrid energy management unit includes a presentation layer, a functional layer, a data layer and a control layer, and provides data management, monitoring, control and optimization for the microgrid dispatch control center. This unit adopts the J2EE framework technology SSI (Struts + Spring + Ibatis) Design, in which Struts is used for system control, Spring acts as a system container to achieve decoupling, and Ibatis is used for persistence layer development. The whole system realizes the seamless integration of SSI through the XML configuration file, which improves the maintainability of the system.
所述中央控制单元完成微电网运行控制和模式切换，通过接收微电网能量管理单元的综合运行控制指令，转换成各子系统指令，下发给分布式控制单元执行，实现并/离网的稳定运行；同时采集各分布式控制单元的实时运行数据，并上传至微电网能量管理单元；所述中央控制单元采用ARM+DSP的双CPU硬件结构设计，遵循IEC61850国际标准，集测量、保护、控制与信号于一体。 The central control unit completes the operation control and mode switching of the microgrid, and converts the comprehensive operation control instructions received from the energy management unit of the microgrid into instructions for each subsystem, and sends them to the distributed control unit for execution, so as to realize the stability of on/off grid Operation; collect real-time operating data of each distributed control unit at the same time, and upload to the microgrid energy management unit; the central control unit adopts ARM+DSP dual-CPU hardware structure design, follows the IEC61850 international standard, and integrates measurement, protection and control integrated with the signal.
所述分布式控制单元由负荷控制器、分布式发电单元控制器、储能控制器组成。所述分布式控制单元接受并执行中央控制单元下达的指令，控制发电单元或储能装置投入或停止运行，投入或切除负荷；并将各子系统运行信息实时上传至中央控制单元。分布式控制单元采用DSP作为控制系统核心，根据不同的发电单元，分别设计基多环反馈控制器、控制器以及逆变器的SPWM调制方法，实现对等控制和主从控制相结合的综合控制策略。 The distributed control unit is composed of a load controller, a distributed power generation unit controller, and an energy storage controller. The distributed control unit accepts and executes the instructions issued by the central control unit, controls the power generation unit or the energy storage device to start or stop running, puts on or removes the load; and uploads the operation information of each subsystem to the central control unit in real time. The distributed control unit adopts DSP as the core of the control system. According to different power generation units, the multi-loop feedback controller, the controller and the SPWM modulation method of the inverter are respectively designed to realize the comprehensive control combining peer-to-peer control and master-slave control. Strategy.
图2所示，微电网能量管理单元包括表示层、功能层、数据层和控制层，各部分的主要功能如下： As shown in Figure 2, the microgrid energy management unit includes a presentation layer, a functional layer, a data layer and a control layer. The main functions of each part are as follows:
表示层（客户端）基于浏览器，主要负责人机接口，即向用户提供在线可视化监测、图形分析、历史数据查询和系统远程控制等功能，是用户与系统间交换信息的窗口。它可以检查用户的合法性和权限范围，通过表单提交和脚本编程实现与WEB服务器的通信，而客户端程序的升级维护对其它三层无任何影响。 The presentation layer (client) is based on the browser and is mainly responsible for the human-machine interface, that is, to provide users with functions such as online visual monitoring, graphic analysis, historical data query and system remote control, and is a window for exchanging information between users and the system. It can check the user's legitimacy and scope of authority, and communicate with the WEB server through form submission and script programming, while the upgrade and maintenance of the client program has no impact on the other three layers.
功能层（WEB 服务器）完成具体的逻辑功能，实现表示层、数据层及控制层之间的连接和数据传输。具体表现为接收客户端或底层控制服务器的请求，调用相应的模块完成请求的逻辑功能，同时也负责与数据层通信，并将请求结果返回给请求端。 The functional layer (WEB server) completes specific logical functions and realizes the connection and data transmission between the presentation layer, data layer and control layer. Specifically, it receives the request from the client or the underlying control server, calls the corresponding module to complete the logical function of the request, and is also responsible for communicating with the data layer, and returns the request result to the requesting end.
数据层（数据库系统）负责保存各种电网生产数据，优化系统访问方式，并接收功能层的请求，实现对历史数据进行增、删、查等操作，保障系统运行的安全性和稳定性。 The data layer (database system) is responsible for saving various power grid production data, optimizing system access methods, and receiving requests from the functional layer to implement operations such as adding, deleting, and checking historical data to ensure the safety and stability of system operation.
控制层（控制服务器）安装在现场设备端，负责管理与功能层和数据层的通信，实现将远程控制命令传递给物理设备，改变现场设备的运行状态，同时也可接收被控对象的请求，实现控制层和功能层的双向联系。 The control layer (control server) is installed on the field device side and is responsible for managing the communication with the functional layer and data layer, realizing the transmission of remote control commands to physical devices, changing the operating status of field devices, and receiving requests from controlled objects at the same time. Realize the two-way connection between the control layer and the functional layer.
所述微电网能量管理单元基于J2EE技术，采用SSI框架进行架构设计，四层体系结构以及面向接口编程有利于系统与其他B/S集成，实现了系统的松耦合性和可扩展性。采用SVG结合Ajax技术实现了电网的在线监控和人机交互，并通过可视化技术的应用提升了系统数据监测和分析的能力。通过RMI与JNI技术的整合，解决了Java与其他系统进行通信的问题，建立了EMS系统远程控制模型。通过采用面向对象思想进行数据库设计，使得电网数据的管理更加简明、直观，同时系统的人员权限设置保证了系统运行的安全性和稳定性，友好的界面设计和方便的操作也增强了系统的实用性。 The micro-grid energy management unit is based on J2EE technology, adopts SSI framework for architecture design, four-layer architecture and interface-oriented programming are conducive to the integration of the system with other B/S, and realize the loose coupling and scalability of the system. The online monitoring and human-computer interaction of the power grid is realized by using SVG combined with Ajax technology, and the ability of system data monitoring and analysis is improved through the application of visualization technology. Through the integration of RMI and JNI technology, the problem of communication between Java and other systems is solved, and the remote control model of EMS system is established. By adopting object-oriented thinking for database design, the management of power grid data is more concise and intuitive. At the same time, the system's personnel authority setting ensures the safety and stability of the system operation. The friendly interface design and convenient operation also enhance the practicality of the system. sex.
如图3所示，能量管理单元主要功能结构包括在线监测单元、数据库管理系统、远程控制模块、图形分析模块和后台管理模块，各个模块均采用现有的成熟技术。 As shown in Figure 3, the main functional structure of the energy management unit includes an online monitoring unit, a database management system, a remote control module, a graphic analysis module and a background management module, and each module adopts existing mature technologies.
所述在线监测单元采用 SVG（Scalable Vector Graphics ） 结合 AJAX（Asynchronous JavaScript and XML ） 技术完成人机接口设计，实现对微电网的在线监测和人机交互。当用户进入在线监测单元子页面时，HTML 界面自动下载并显示被监控电网的SVG图形。SVG接线图中还定义了被监控的电网变量，通过 Ajax 读取相应的数据，对于所有被监控的变量，SVG 会根据事先定义的刷新频率定期更新变量的值。 The online monitoring unit uses SVG (Scalable Vector Graphics) combined with AJAX (Asynchronous JavaScript and XML) technology to complete the design of the human-machine interface and realize the online monitoring and human-computer interaction of the microgrid. When the user enters the subpage of the online monitoring unit, the HTML interface automatically downloads and displays the SVG graphics of the monitored power grid. The monitored grid variables are also defined in the SVG wiring diagram, and the corresponding data is read through Ajax. For all monitored variables, SVG will periodically update the value of the variables according to the refresh frequency defined in advance.
所述数据库管理系统主要用于微电网数据的存储和管理。其中历史数据不仅包括各类实时数据的持久化保存，还包括各种工程值的最大值、最小值和平均值的计算，以及各类计算结果发生的时间，还包括根据各类实时参数，产生由用户定义的表达式和定义计算量的结果。数据库管理系统为用户提供统一的访问接口，供用户完成对数据的增、删、查、改等操作。 The database management system is mainly used for storage and management of microgrid data. The historical data includes not only the persistent storage of various real-time data, but also the calculation of the maximum, minimum and average values of various engineering values, the time when various calculation results occur, and the generation of The result of user-defined expressions and defined calculation quantities. The database management system provides users with a unified access interface for users to complete operations such as adding, deleting, checking, and modifying data.
所述远程控制模块实现电网运行参数设置和对系统配置文件的编辑管理等功能，用户通过输入 IP 地址和端口号与远端服务器建立连接，并将控制参数下达给底层物理设备。由于系统初始化数据多以 XML 文件进行保存，设计中相应地增加了对配置文件进行在线编辑和存储等功能。 The remote control module implements functions such as power grid operation parameter setting and editing and management of system configuration files. The user establishes a connection with the remote server by inputting the IP address and port number, and sends the control parameters to the underlying physical device. Since the system initialization data is mostly stored in XML files, functions such as online editing and storage of configuration files have been added in the design accordingly.
所述图形分析模块实现对电网历史数据的图形化显示，以饼状图、柱状图和曲线图等方式对电网数据进行比较和分析。 The graphical analysis module realizes the graphical display of the historical data of the power grid, and compares and analyzes the data of the power grid in the form of pie charts, histograms, and graphs.
所述后台管理模块主要负责对系统各功能模块进行设置和管理，具有相应权限的系统管理员可以对人员、权限、设备和报警信息等进行编辑处理。后台管理是整个系统的一个枢纽模块，因为系统信息多存储在数据库系统中，因此后台管理模块要实现与数据库的有效交互，包括各种参数表的创建，为用户提供添加、删除、修改和查询数据表的各种方法，并依此控制系统的运行状态。 The background management module is mainly responsible for setting and managing each functional module of the system, and a system administrator with corresponding authority can edit personnel, authority, equipment and alarm information, etc. The background management is a pivotal module of the whole system, because most of the system information is stored in the database system, so the background management module should realize the effective interaction with the database, including the creation of various parameter tables, providing users with the ability to add, delete, modify and query Various methods of the data table, and control the operating state of the system accordingly.
本发明通过将整个系统分为不同的逻辑块，细化了系统功能实现的步骤，大大降低了应用系统开发和维护的成本。将数据访问和逻辑操作都集中到组件中，对外提供统一的接口，增强了系统的复用性。各层次之间保持相对独立的功能，对外提供接口，层与层之间通过接口进行通信而不必关心其内部的实现方式，这样有利于降低系统的耦合度，提高系统的扩展性和伸缩性。这种功能化、模块化的设计是控制产品成本的一个非常重要的方法，也是快速开发产品的有力保证，更为今后应用领域的扩展提供了方便。 By dividing the whole system into different logic blocks, the present invention refines the steps of system function realization, and greatly reduces the cost of application system development and maintenance. Concentrate data access and logic operations into components, provide a unified interface to the outside world, and enhance the reusability of the system. Each layer maintains relatively independent functions, provides external interfaces, and communicates between layers through interfaces without caring about their internal implementation methods, which is conducive to reducing the coupling degree of the system and improving the scalability and scalability of the system. This functional and modular design is a very important method to control product cost, and it is also a strong guarantee for rapid product development, and it provides convenience for future expansion of application fields.
本文中所描述的具体实施例仅是对本发明精神的具体说明，本领域技术人员可以在不违背本发明的原理和实质的前提下对本具体实施例做出各种修改或补充或者采用类似的方式替代，但是这些改动均落入本发明的保护范围。因此本发明技术范围不局限于上述实施例。 The specific embodiments described herein are only specific illustrations of the spirit of the present invention, and those skilled in the art can make various modifications or supplements to the specific embodiments or adopt similar methods without departing from the principle and essence of the present invention Alternatives, but these modifications all fall within the protection scope of the present invention. Therefore, the technical scope of the present invention is not limited to the above-mentioned embodiments.
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