TWI666606B - Remote monitoring system for power demand - Google Patents

Abstract

The invention relates to a remote monitoring system for electric power demand, which mainly makes the electric power supply system supply electric power required by electrical equipment, and the electric power demand monitoring system is provided with a programmable controller for various controls. The program controller communicates with each other through the Internet and a computer man-machine interface. The computer man-machine interface is constructed by LabVIEW graphical software, including the main control screen, monitoring screen, forecast demand trend screen, Over-alarm overview screen, reset overview screen, daily report screen and calendar data screen; this can not only reduce the cost of line construction, but also improve the real-time monitoring performance between monitoring personnel and equipment. It can also be used anywhere, The purpose of remote monitoring can be achieved through the Internet at any time, and it can be conveniently used by monitoring personnel.

Description

Remote monitoring system for electricity demand

The invention relates to a remote monitoring system for power demand, in particular to a remote monitoring system that can not only reduce the cost of line construction, but also improve the real-time monitoring performance between monitoring personnel and equipment, and can be transmitted at any place and at any time. The Internet achieves the purpose of remote monitoring, and can be conveniently used by monitoring personnel, and it has more practical features in its overall implementation and use.

In recent years, with the popularization of computer technology and the rapid improvement of industrial communication technology, and the vigorous development of the Internet, the Internet has become not only a necessity in daily life, but also access to data through the Internet has become a Trends, and the efficiency and benefits of remote monitoring using the Internet have become the focus of everyone. And through various communication interfaces to communicate with remote devices, and then to achieve the technology development and design of data transmission and hardware control, but also with the development of various communication interfaces continue to extend to various communication environments.

Traditional power monitoring systems usually only have functions that can only be monitored at the customer's end, and the operation interface is too cumbersome. They do not use the Internet as a transmission medium, resulting in not only expensive, simple functions, but also a lack of systematic combination In addition, due to the small number of monitoring points and the lack of professional monitoring personnel, modification and maintenance are not easy, and the willingness to set up is generally not high. Such a causal relationship causes the power consumption of SMEs during peak periods in summer to often exceed the contract capacity. And being fined, the process cost was increased.

In order to improve the quality and efficiency of power consumption, it has become a trend to use network-based power demand monitoring systems to replace traditional power monitoring methods. In the remote monitoring architecture, the Internet is mainly used as the role of data transmission, and the purpose of communicating with each other is achieved through the transmission control protocol and the Internet communication protocol. Using the Internet as a medium for the transmission platform, not only can reduce the cost of the circuit, but also use an accurate and superior computer system and fast transmission of network communications, coupled with a properly designed human-machine interface, in addition to real-time understanding of their own power consumption In addition to effectively planning the electricity demand, it can achieve the purpose of remote monitoring.

Among them, please refer to the announcement of the structural improvement of the power demand controller No. M2497776 dated July 21, 1995. It is mainly equipped with a PID demand control host, which is connected to a watt-hour meter via the RS-485 communication interface. [KWH], remote I / O interface and forecast demand display, and connect the man-machine interface to the control host for digital display monitoring and parameter setting, and the control host is connected to the computer operating platform via Ethernet interface. Do demand management, monitoring, and curve analysis functions.

In addition, please refer to the announcement No. I411111994 of October 1st, 2012, "A method and system for monitoring and controlling the average use demand of power", which is a system that provides the average use demand for controllable electricity, including: The complex OPLC controller is divided into a set of OPLC main controllers and a complex array of OPLC sub-controllers. It performs average demand forecasting and unloading and reloading of the output power of the equipment. Power output sequence and schedule changes; multiple temperature control modules are connected to multiple OPLC sub-controllers, and are divided into multiple main temperature control modules and multiple auxiliary temperature control modules; a collective meter, connected to OPLC The main controller is connected, and the current data returned by all the OPLC sub-controllers are monitored and recorded; multiple communication modules, each module is connected to the OPLC main controller and the plural OPLC sub-controllers, which are provided for the OPLC master and Communication data conversion between the sub-controller and the PC monitoring computer; a hub, which is a serial The parallel local network mainly gathers all computers in the local network, so that each branch computer can be connected to the network host computer, which has a relatively stable transmission quality, a fast transmission rate and reduced interference; The PC monitoring computer can be used by general computers or industrial computers. It can be used to monitor and control the remote control or modify the sequence of equipment starting and closing and various parameters.

However, although the above-mentioned "structure improvement of the power demand controller" and "a method and system for controlling the average power demand that can be controlled by electricity" can achieve the expected effect of remotely monitoring the power demand, they are also practical. It is found in the operation and implementation that the operation interface of this type of system is relatively inconvenient in operation and use, so that it still has room for improvement in the overall structural design.

The reason is that the inventor has taken this into consideration, and with many years of rich design, development, and actual production experience in the relevant industry, he researches and improves the existing structure and defects, and provides a remote monitoring system for power demand in order to achieve better practicality. A person of value.

The main purpose of the present invention is to provide a remote monitoring system for power demand, which can not only reduce the cost of line construction, but also improve the real-time monitoring performance between monitoring personnel and equipment, and can be transmitted anywhere and at any time. The Internet achieves the purpose of remote monitoring, and can be conveniently used by monitoring personnel, and it has more practical features in its overall implementation and use.

The main purpose and efficacy of the remote power monitoring system of the present invention is achieved by the following specific technical means:

It mainly includes power supply system, power demand monitoring system, Internet and computer man-machine interface. The power supply system is used to supply the power required by electrical equipment. The power demand monitoring system is provided with a programmable controller [programmabl logicroller] performs various controls, and a collective meter is connected to the programmable controller, so that the collective meter is connected to the power supply system, so as to use the collective meter to measure and analyze the power consumption data of the power supply system. Load increase and decrease operation control, and an industrial-grade human-machine interface is connected to the programmable controller as a numerical monitoring display, and a PID load management unit is connected to the programmable controller for real-time demand control. The programmable controller is connected to the computer man-machine interface through the Internet for mutual data transmission; it is characterized by:

This computer man-machine interface is constructed by LabVIEW graphical software, including the main control screen, monitoring screen, forecast demand trend graph screen, over-alarm overview screen, reset overview screen, daily report screen and calendar data screen; among them:

The main control screen includes login information, interface selection, and setting parameters. The login information is used for monitoring personnel to input account passwords for data comparison. The interface is selected for monitoring personnel to select the desired screen. The setting parameters are for monitoring personnel to perform. System parameter input modification;

The monitoring screen is an interface for transmitting data between the programmable controller and the computer human-machine interface of the power demand monitoring system, and the captured data is displayed after being arranged;

The forecast demand trend graph screen, which can simultaneously display the dynamic trend graph data of electricity, control demand, and forecast demand;

The over-alarm overview screen, which can instantly display the system's adjustment of the number of unloaded sections when the predicted demand exceeds the control demand value, and will record it as a reference for tracking and review;

The return overview screen, which can instantly display the system to restore the power after loading when the predicted demand exceeds the control demand value, and will record it as a reference for tracking and review;

The daily report screen, which can display various data of the system, so that relevant personnel can control the power demand situation at any time;

This historical data screen can be used to query historical data and dynamic trend graphs to calculate electricity and display various electrical energy data in the table for future query and production of required reports.

A preferred embodiment of the remote monitoring system for power demand of the present invention, wherein the programmable controller of the power demand monitoring system is connected to the collective meter in the Modbus TCP protocol format.

A preferred embodiment of the remote monitoring system for power demand of the present invention, wherein the programmable controller of the power demand monitoring system is connected to the industrial-grade human-machine interface with an RS-232 interface.

A preferred embodiment of the remote monitoring system for power demand of the present invention, wherein the programmable controller of the power demand monitoring system is connected to the PID load management unit through an RS-485 interface.

A preferred embodiment of the remote monitoring system for power demand of the present invention, wherein the programmable controller of the power demand monitoring system is connected to the computer human-machine interface through the Internet in the Modbus TCP protocol format. .

A preferred embodiment of the remote monitoring system for power demand according to the present invention, wherein the monitoring screen is provided with an alarm light and an execution screen, so that when the estimated demand value is greater than the control demand value, the alarm light can be turned on and the The execution screen displays the current uninstall status.

In order to provide a more complete and clear disclosure of the technical content, the purpose of the invention and the effect achieved by the present invention, it is described in detail below, and please also refer to the disclosed drawings and numbers:

First, please refer to the first diagram of the system architecture of the present invention and the second diagram of the system block diagram of the present invention. The present invention mainly includes a power supply system (1), a power demand monitoring system (2), and the Internet. (3) and computer man-machine interface (4); of which:

The power supply system (1) is used to supply the electricity required by electrical equipment; the power demand monitoring system (2) is provided with a programmable controller [programballelogisticzconroller] (21) for various controls, and the programmable controller (21) A collective meter (22) is connected in the Modbus TCP protocol format, and the collective meter (22) is connected to the power supply system (1) to use the collective meter (22) for the power supply system (1) Measurement of power consumption data and operation control of load increase and decrease, and an industrial-level human-machine interface (23) is connected to the programmable controller (21) with an RS-232 interface as a numerical monitoring display, and A PID load management unit (24) is connected to the programmable controller (21) with an RS-485 interface for real-time demand control, and the programmable controller (21) is also transmitted through the Internet in the Modbus TCP protocol format. Internet (3) and the computer person Interface (4) connected to each other with the data transmission.

For the computer human-machine interface (4), please refer to the third figure again, as shown in the schematic diagram of the computer human-machine interface architecture of the present invention, which is constructed by LabVIEW graphical software, including the main control screen (41) and the monitoring screen. (42), forecast demand trend graph screen (43), overdue alarm overview screen (44), reset overview screen (45), daily report screen (46) and calendar data screen (47); please refer to it again The fourth figure shows the operation flow chart of the computer human-machine interface architecture of the present invention, wherein:

The main control screen (41), please refer to FIG. 5 again as shown in the schematic diagram of the main control screen of the present invention, which includes login information (411), interface selection (412), and setting parameters (413). 411) For monitoring personnel to enter account and password for data comparison, if the comparison error reaches the set number of times, it will stop working [please refer to Figure 6 again as shown in the schematic diagram of the login data error screen of the present invention]. Enter the system, the interface selection (412) is for the supervisor to choose to enter the monitoring screen (42), the forecast demand trend graph screen (43), the over-alarm overview screen (44), the reset overview screen (45), The daily report screen (46) or the calendar data screen (47), and the setting parameter (413) is for the monitoring personnel to input and modify the system parameters.

The monitoring screen (42), please refer to FIG. 7 together for the monitoring screen diagram of the present invention, which is the programmable controller (21) of the power demand monitoring system (2) and the computer man-machine The interface (4) is an interface for transmitting data to each other, and the captured data is sorted and displayed, and an alarm light (421) and an execution screen (422) are provided on the monitoring screen (42), so that when When the estimated demand value is greater than the control demand value, the alarm light (421) can be turned on and the current uninstallation status can be displayed on the execution screen (422).

This forecasted demand trend screen (43), please refer to Figure 8 again, as shown in the schematic diagram of the forecasted demand trend screen of the present invention, which can simultaneously display the dynamic trend graphs of electricity, control demand, and forecasted demand. And other information.

The overdue alarm overview screen (44), please refer to the ninth figure again as shown in the schematic diagram of the overdue alarm overview screen of the present invention, which can instantly show that the system has performed the unloading section when the predicted demand exceeds the control demand value The number of adjusted power situations will be recorded as a reference for tracking and review.

The reset overview screen (45), please refer to FIG. 10 again, as shown in the schematic diagram of the reset overview screen of the present invention, which can instantly display the situation of the system returning power after loading when the predicted demand exceeds the control demand value, and Records will be used as a reference for tracking and review.

The daily report screen (46), please also refer to Figure 11 together with the daily report screen diagram of the present invention, which can display various data of the system, so that relevant personnel can control the power demand at any time. Happening.

The calendar data screen (47), please refer to Figure 12 again, which is shown in the schematic diagram of the calendar data screen of the present invention, which can be used to query historical data and dynamic trend graphs for power calculation and display of various electrical energy data in In the table, you can query and make required reports in the future.

That's it. The electric power supply system (1) makes use of the collective meter (22) of the electric power demand monitoring system (2) for data transmission, so as to transmit relevant sampling data to the programmable of the electric power demand monitoring system (2). Controller (21), and the programmable controller (21) and the computer human-machine interface (4) through the Internet (3) to perform an inquiry response mode, and return the required relevant data to the computer man-machine The interface (4) performs many functions such as power consumption analysis, power demand value calculation, load increase and decrease control, etc., and the value monitoring display through the industrial-grade human-machine interface (23) of the power demand monitoring system (2). And 參 數 settings, and cooperate with the PID load management unit (24) to perform load increase and decrease management.

From the above description of the use and implementation of the present invention, it can be known that compared with the prior art, the present invention mainly has the following advantages:

1. The present invention enables data transmission through the Internet, which can reduce line construction costs.

2. The invention can improve the real-time monitoring performance between the monitoring personnel and the equipment, and can also achieve the purpose of remote monitoring through the Internet at any place and at any time.

3. The computer man-machine interface of the present invention is constructed by LabVIEW graphical software, so that it has an intuitive graphical operating interface, which is convenient for monitoring personnel to use.

However, the foregoing embodiments or drawings do not limit the product structure or usage of the present invention, and any appropriate changes or modifications by those with ordinary knowledge in the technical field should be regarded as not departing from the patent scope of the present invention.

In summary, the embodiments of the present invention can indeed achieve the expected use effect, and the specific structure disclosed has not only been seen in similar products, nor has it been disclosed before the application. It has fully complied with the provisions of the Patent Law. In accordance with the law, the application for an invention patent was submitted in accordance with the law, and we are kindly requested to review it and grant the patent.

(1) ‧‧‧ Power Supply System

(2) ‧‧‧ Power Demand Monitoring System

(21) ‧‧‧ Programmable controller

(22) ‧‧‧ Collective Meter

(23) ‧‧‧ Industrial HMI

(24) ‧‧‧PID Load Management Unit

(3) ‧‧‧Internet

(4) ‧‧‧ computer man-machine interface

(41) ‧‧‧ main control screen

(411) ‧‧‧ Login Information

(412) ‧‧‧ interface selection

(414) ‧‧‧ Setting parameters

(42) ‧‧‧ monitoring screen

(421) ‧‧‧ warning light

(422) ‧‧‧ execution screen

(43) ‧‧‧ forecast demand trend screen

(44) ‧‧‧Overview alarm overview screen

(45) ‧‧‧ Return to the overview screen

(46) ‧‧‧ Daily report screen

(47) ‧‧‧ data screen

First picture: system architecture diagram of the present invention

Second figure: system block diagram of the present invention

Third figure: Schematic diagram of the computer man-machine interface structure of the present invention

Figure 4: Schematic diagram of the operation process of the computer HMI framework of the present invention

Figure 5: Schematic diagram of the main control screen of the present invention

Figure 6: Schematic diagram of the login data error screen of the present invention

Figure 7: Schematic diagram of the monitoring screen of the present invention

Figure 8: Schematic diagram of the forecast demand trend graph screen of the present invention

Figure 9: Schematic diagram of the over-alarm overview screen of the present invention

Figure 10: Schematic diagram of the overview of the reversion of the present invention

Figure 11: Schematic diagram of the daily report screen of the present invention

Figure 12: Schematic diagram of the calendar data of the present invention

Claims (6)

A remote monitoring system for power demand, which mainly includes a power supply system, a power demand monitoring system, the Internet, and a computer man-machine interface. The power supply system is used to supply the power required by electrical equipment. The power demand The monitoring system is provided with a programmable controller [programmblezlocicconroller] to perform various controls. A collective meter is connected to the programmable controller, so that the collective meter is connected to the power supply system, so that the collective meter can be used to perform the control. The power supply system is used to measure the power consumption data and increase or decrease the load, and an industrial-grade human-machine interface is connected to the programmable controller as a numerical monitoring display, and a PID load is connected to the programmable controller. The management unit performs real-time demand control. In addition, the programmable controller is connected to the computer human-machine interface through the Internet for mutual data transmission. It is characterized by: The computer human-machine interface, which is graphically displayed by LabVIEW Software for construction, including the main control screen, monitoring screen, Demand trend graph screen, over-alarm overview screen, reset overview screen, daily report screen and calendar data screen; among them: the main control screen, which includes login data, interface selection and setting parameters, and the login data is for input by monitoring personnel Account and password for data comparison. The interface selects the screen that the supervisor chooses to enter. The setting parameter is used by the supervisor to input and modify the system parameters. The monitor screen is the programmable control of the power demand monitoring system. Interface between the controller and the computer human-machine interface, and the collected data is displayed after being sorted out; the forecast demand trend graph screen, which can simultaneously display the power, control demand, and forecast demand The data of the dynamic trend chart of the quantity; The over-alarm overview screen, which can show the system in real time when the forecasted demand exceeds the control demand value, has performed the adjustment of the number of unloaded sections, and it will be recorded for tracking and review. Reference; This reset overview screen can display the system in real time when the predicted demand exceeds the control demand value. Respond to the situation of electricity, and record it as a reference for tracking and review; The daily report screen, which can display various data of the system, so that relevant personnel can control the power demand situation at any time; The data screen of the calendar year It can be used for querying historical data and dynamic trend graphs for power calculation and displaying various electrical energy data in the table for future query and making required reports. For example, the remote monitoring system for power demand described in item 1 of the scope of the patent application, wherein the programmable controller of the power demand monitoring system is connected to the collective meter in the Modbus TCP protocol format. For example, the remote control system for power demand described in the first patent application scope, wherein the programmable controller of the power demand monitoring system is connected to the industrial-level human-machine interface with an RS-232 interface. For example, the remote monitoring system for power demand as described in the first scope of the patent application, wherein the programmable controller of the power demand monitoring system is connected to the PID load management unit through an RS-485 interface. For example, the remote monitoring system for power demand described in the first patent application scope, wherein the programmable controller of the power demand monitoring system is in the Modbus TCP protocol format through the Internet and the computer man-machine interface. Linked. For example, the remote monitoring system for power demand described in item 1 of the scope of patent application, wherein the monitoring screen is provided with an alarm light and an execution screen, so that when the estimated demand value is greater than the control demand value, the warning light can be turned on And the current uninstallation status is displayed on the execution screen.