CN112346351A - Thing networking device integration intelligence centralized control system based on BIM - Google Patents
Thing networking device integration intelligence centralized control system based on BIM Download PDFInfo
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Abstract
The invention discloses a BIM-based integrated intelligent centralized control system for Internet of things equipment. The electromechanical integrated intelligent centralized control system based on the cloud platform technology can dynamically optimize the working mode and the output power of the ventilation air-conditioning system according to the indexes and the set intelligent scene, so that the air-conditioning system is always in high-efficiency operation, the energy waste generated by non-high-efficiency operation can be effectively reduced, and the purposes of energy conservation and emission reduction are achieved; meanwhile, real-time intelligent monitoring and management of the ventilation air-conditioning system can be realized, and fault discovery, fault resolution and fault recovery are facilitated, so that the safety of the subway power supply system is guaranteed, the automation level and the working efficiency are improved, and the daily maintenance workload and the operation cost are obviously reduced.
Description
Technical Field
The invention relates to the technical field of integrated intelligent centralized control of Internet of things equipment, in particular to an integrated intelligent centralized control system of the Internet of things equipment based on BIM.
Background
The urban rail transit ventilation air-conditioning system has high energy consumption which is second to the power consumption of traction power supply. According to the practical operation statistical data, the electricity consumption of the ventilation and air-conditioning system of the underground station can account for 50-70% of the total electricity consumption of the whole station, and the ventilation and air-conditioning system is the system equipment with the largest electricity consumption. How to reduce the power consumption of a ventilation air-conditioning system is always the key point of energy-saving work in the field of subways. At present, the domestic building for operating the central air conditioner with high energy efficiency is less than 5 percent. The subway station has the characteristics of rapid personnel flow, continuous change of dense areas in high and low peak periods, wide coverage range and the like. Different sites have large environmental temperature difference according to the geographical positions and the surrounding environment. Often, the air conditioning ventilation system is in a long-term operation state, and the inefficient operation of the system causes huge energy waste. In the refrigerating season, the energy consumption of energy utilization equipment for subways mainly based on ventilation and air conditioning is huge cost pressure of an operator, and the operation and maintenance cost of a station is more than three times than that of the station. With the continuous operation of an urban subway line, huge emission reduction pressure and financial burden are inevitably brought to the government and the society.
The traditional operation and maintenance mode of urban rail transit equipment adopts a method of equipment regular maintenance and fault maintenance, periodically carries out equipment maintenance work according to equipment maintenance regulations, and utilizes systems such as comprehensive monitoring and the like to monitor equipment faults. The traditional operation and maintenance mode of the urban rail transit equipment lacks the functions of full life cycle tracking, real-time state early warning and the like of the equipment, so that the operation equipment is easy to have the conditions of over-repair, under-repair and the like. Meanwhile, the equipment maintenance is mainly realized by the active detection of operators according to maintenance rules, and is influenced by the physical and mental states of the operators, so that the conditions of missed detection, wrong detection and the like are easy to occur.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a BIM-based integrated intelligent centralized control system for equipment of the Internet of things.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that:
the utility model provides a thing networking equipment integration intelligence centralized control system based on BIM, includes:
the intelligent environment-friendly electric control subsystem is used for acquiring the running state data of the strong and weak current equipment and the sensor data and the environment data in the system by utilizing the intelligent environment-friendly cabinet in a layered distributed mode and uploading the data to the intelligent operation and maintenance cloud platform; each intelligent ring control cabinet forms a ring network structure through Ethernet to perform power distribution, display, energy-saving control, data acquisition, data statistics and communication operation; the intelligent operation and maintenance cloud platform is used for providing data of each station device, and utilizing three-level control modes of central control, station control room control and local control to realize real-time intelligent monitoring and management of the ventilation and air conditioning system, wherein a central control subsystem carries out centralized monitoring and remote control on the whole-line station ventilation and air conditioning system, a comprehensive monitoring platform in the station control room monitors and controls the intelligent centralized control system, the local control controls various devices, electric air valves and water valves at the positions, and the priority of each level of control mode is regulated to enable each level of control mode to be carried out orderly; the method comprises the steps that through equipment data of each station provided by an intelligent operation and maintenance cloud platform, each intelligent environment control cabinet in an environment control electric control room is utilized to carry out centralized power distribution on the ventilation air-conditioning equipment and establish a power supply scheme, the output power of the ventilation air-conditioning equipment is optimized, and the ventilation air-conditioning equipment is enabled to run efficiently;
the intelligent operation and maintenance cloud platform is used for storing data uploaded by the intelligent environment-control electronic control subsystem, providing storage virtualization resources through a plurality of virtual servers, storing the acquired data of each device in a storage resource pool, and distributing the acquired data on a plurality of server hosts; by utilizing functions of cluster application, a grid technology, a distributed file system and the like, a large number of storage devices of different types in a network are assembled through application software to cooperatively work, data storage and service access are provided for the intelligent environment-friendly electric control subsystem together, all station equipment data monitoring, equipment operation early warning and inspection operation are checked in real time, three-dimensional management, intelligent data analysis and complete life cycle visual management of equipment are carried out by combining a BIM technology, a remote control instruction is issued in real time, and the intelligent environment-friendly electric control subsystem is centrally monitored and controlled.
Furthermore, the intelligent environment-friendly electric control subsystem comprises an environment-friendly electric control room, and a tunnel ventilation and station heat extraction intelligent environment-friendly cabinet, a public area ventilation and air-conditioning system intelligent environment-friendly cabinet, a ventilation and air-conditioning system intelligent environment-friendly cabinet for equipment management, an air-conditioning water system intelligent environment-friendly cabinet and an intelligent data monitoring terminal which are respectively in communication connection with the environment-friendly electric control room;
the tunnel ventilation and station heat extraction intelligent environmental control cabinet is respectively connected with a tunnel fan, a heat extraction fan, a jet fan and a combined air valve;
the intelligent environmental control cabinet of the public area ventilation air-conditioning system is respectively connected with the combined air-conditioning unit, the return exhaust fan, the electric air valve and the fan coil;
the intelligent ring control cabinet of the ventilation air-conditioning system for equipment management is respectively connected with a cabinet air conditioner, an air return exhauster and an electric air valve;
the intelligent environment-friendly cabinet of the air-conditioning water system is respectively connected with a water chilling unit, a freezing water pump, a cooling tower, a water treatment device, an electric butterfly valve, a balance valve and a differential pressure bypass valve;
the intelligent data monitoring terminal is respectively connected with an outdoor weather monitor, a temperature and humidity sensor, a CO2 concentration sensor, a PM2.5 detector, an air volume sensor, an electromagnetic flow sensor, a pressure sensor, an intelligent electric measuring instrument and a refrigerant leakage online monitoring system.
Furthermore, the ventilation air-conditioning equipment in the intelligent environment-controlled electric control subsystem is centrally distributed by each intelligent environment-controlled cabinet in the environment-controlled electric control room, the water chilling unit is directly powered by the voltage reduction substation, and the distribution of the environment-controlled equipment is divided into a first-level load, a second-level load and a third-level load; the primary load is divided into one group or a plurality of groups according to the load capacity, two sections of low-voltage buses of the substation respectively introduce one path of power supply to the environment-controlled electric control room, and an integrated PC (personal computer) level dual-power switching device is adopted to switch the power supply scheme; the environment-controlled non-fire-fighting load is supplied with power by a single loop of a station substation.
Furthermore, the intelligent environment-controlled electronic control subsystem adopts three-level control modes of central control, station control room control and local control; wherein
The central control adopts a central control subsystem arranged in a control center to monitor the whole-line station ventilation air-conditioning system, checks all station equipment data monitoring, equipment operation early warning and routing inspection operation in real time through an intelligent operation and maintenance cloud platform, performs three-dimensional management, intelligent data analysis and equipment life cycle management by combining a BIM technology, issues a remote control instruction in real time, and performs centralized monitoring and control on the intelligent environment-controlled electric control subsystem;
the station control room monitors and controls the intelligent centralized control system by adopting a comprehensive monitoring platform in each station control room, and checks monitoring data, operation early warning and routing inspection operation of each ventilation air-conditioning equipment in the station in real time;
the local control controls various devices at the position, an electric air valve and a water valve, and has control priority.
Furthermore, the intelligent environment-controlled electronic control subsystem is provided with a power supply control switch for local control near a ventilator, a water chilling unit, a water pump, an air conditioner tail end and ground cooling tower equipment in an air conditioner ventilator room, and a station control room and a control center receive operation signals of the intelligent environment-controlled electronic control subsystem but fail to control the intelligent environment-controlled electronic control subsystem; after the local control finishes the operation, a signal is fed back to a station control room and a control center, and the normal function of the station control room and the control center is recovered.
Furthermore, an interface communicated with a station energy management system is reserved in the intelligent environment-friendly electric control subsystem, and the station energy management system is used for carrying out power distribution management on the ventilation air-conditioning equipment and optimizing a power supply scheme; the intelligent environmental control cabinets in the environmental control electric control rooms are used for centralized power distribution, the electric energy of each loop and each system is measured by adopting various sensor data provided by the intelligent data monitoring terminal and the data of the intelligent electric quantity meter, and the electric quantity data is analyzed by utilizing an EJ energy-saving algorithm, so that energy-saving management is realized.
Further, the EJ energy saving algorithm specifically includes:
s1, preprocessing the collected current electric quantity data, specifically:
firstly, removing noise data, detecting outlier data points by adopting a denoising algorithm, and carrying out partial deletion;
then, carrying out type conversion operation on the data, and carrying out unification operation on the data types by adopting a one-hot vector coding method;
then, carrying out normalization operation on the converted data, and unifying vector dimensions;
finally, a sampling algorithm is adopted to randomly sample the data;
and S2, establishing an EJ energy-saving model, and analyzing the electric quantity data by using the EJ energy-saving model to realize energy-saving management.
Further, the establishing an EJ energy-saving model specifically includes:
let a denote as a single data vector, let PxFor a single set of data vectors, then Pi＝[ai,a i +1,ai+2,ai+3]Wherein i<N-3, wherein n represents the number of the electric quantity data collected in a period of time; then setting a hyperparameter k, an energy-saving threshold G and a historical energy-saving index J corresponding to each electric quantity data in a historical time period in the EJ model based on an expert experience rule, and expressing the obtained EJ energy-saving model as follows:
Yz＝[(w*Pz+b)*ln(k),(w*Pz+1+b)*ln(k),(w*Pz+2+b)*ln(k),(w*Pz+3+b)*ln(k)]
L(w,b)＝(ln(YZ)-ln(E)-Ji*(w,b)*Pi)
wherein Y represents a vector matrix of fluctuation conditions of the electric quantity data within a set time; z represents a subscript of the Y vector matrix, and the value is less than i-3; ln () represents a logarithmic function; w and b represent parameters needing to be optimized in the EJ model; e represents the energy-saving probability value corresponding to the electric quantity data in the current time period; l () represents a loss function for constantly updating the parameters w and b until the global optimum is reached. And when the electric quantity data value of the current time period is input and the optimal EJ model is combined, if the output energy-saving probability value E is greater than the energy-saving threshold value G, starting an energy-saving management command.
Furthermore, the intelligent environment-friendly electric control subsystem is in communication connection with the comprehensive monitoring system through a station BAS system, and the station BAS system adopts computer network, communication and distributed technology to perform centralized monitoring, control and management on the intelligent environment-friendly electric control subsystem; the system comprises a central control level, a station control room control level, local control level monitoring equipment and a real-time monitoring system formed by related communication networks, and realizes the monitoring of electromechanical equipment, the environmental monitoring, the energy-saving operation management, the environmental and equipment management, and the orderly linkage control and monitoring among a ventilation air-conditioning system and the equipment; the comprehensive monitoring system belongs to central control level monitoring, monitors a ventilation air conditioning system of a whole-line station, checks all station equipment data monitoring, intelligent early warning, data analysis and life cycle management in real time through an intelligent operation and maintenance cloud platform, issues a remote control instruction in real time, and performs centralized monitoring on the intelligent environment-controlled electric control subsystem.
Furthermore, the intelligent environment-friendly electric control subsystem is in communication connection with a vehicle control room workstation, the vehicle control room workstation is used for monitoring and controlling the intelligent centralized control system by utilizing a comprehensive monitoring platform in each station control room, and the operation early warning and routing inspection operation is realized by monitoring data and analyzing data in real time of each ventilation air-conditioning equipment in the station.
The invention has the following beneficial effects:
(1) the electromechanical integrated intelligent centralized control system based on the cloud platform technology can dynamically optimize the working mode and the output power of the ventilation air-conditioning system according to the indexes and the set intelligent scene, so that the air-conditioning system is always in high-efficiency operation, the energy waste generated by non-high-efficiency operation can be effectively reduced, and the purposes of energy conservation and emission reduction are achieved;
(2) the electromechanical integrated intelligent centralized control system integrates the functions of safety protection, intelligent control, data measurement, signal acquisition and the like, can realize real-time intelligent monitoring and management on a ventilation and air conditioning system, and is favorable for fault discovery, fault solution and fault recovery, so that the safety of a subway power supply system is ensured, the automation level and the working efficiency are improved, and the daily maintenance workload and the operation cost are obviously reduced;
(3) according to the intelligent energy-saving system, the electric quantity data is analyzed by using an EJ energy-saving algorithm in the station energy management system, dynamic analysis can be performed according to the electric quantity data of each time period collected by the intelligent data monitoring terminal in the intelligent environment-controlled electric control room and the history energy-saving index intelligently set by the energy management system, the high-power mode of the ventilation air-conditioning system is limited in time, the working mode and the output power of the ventilation air-conditioning system are intelligently adjusted, intelligent energy-saving management of the station energy management system is facilitated, the electric quantity utilization rate is improved, the energy waste of the ventilation air-conditioning system is effectively reduced, the air-conditioning system is enabled to be operated at high efficiency all the time, and the.
Drawings
FIG. 1 is a schematic structural diagram of an integrated intelligent centralized control system of an Internet of things device based on BIM;
FIG. 2 is a system architecture diagram of the present invention;
FIG. 3 is a schematic diagram of a distributed intelligent control scheme of the present invention;
FIG. 4 is a diagram illustrating a control method and signal transmission according to the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
The embodiment of the invention provides a BIM-based integrated intelligent centralized control system for Internet of things equipment, which comprises an intelligent environment-friendly electric control subsystem and an intelligent operation and maintenance cloud platform as shown in figure 1.
The intelligent environment-friendly electric control subsystem is used for acquiring the running state data of the strong and weak current equipment and the sensor data and the environment data in the system by utilizing the intelligent environment-friendly cabinet in a layered distributed mode and uploading the data to the intelligent operation and maintenance cloud platform; each intelligent ring control cabinet forms a ring network structure through Ethernet to perform power distribution, display, energy-saving control, data acquisition, data statistics and communication operation; the intelligent operation and maintenance cloud platform is used for providing data of each station device, and utilizing three-level control modes of central control, station control room control and local control to realize real-time intelligent monitoring and management of the ventilation and air conditioning system, wherein a central control subsystem carries out centralized monitoring and remote control on the whole-line station ventilation and air conditioning system, a comprehensive monitoring platform in the station control room monitors and controls the intelligent centralized control system, the local control controls various devices, electric air valves and water valves at the positions, and the priority of each level of control mode is regulated to enable each level of control mode to be carried out orderly; through each website equipment data that intelligence fortune dimension cloud platform provided, utilize each intelligent ring accuse cabinet in the ring accuse electrical control room to carry out centralized distribution and formulate the power supply scheme to ventilation air conditioning equipment, optimize ventilation air conditioning equipment output, make ventilation air conditioning equipment high-efficient operation.
The intelligent operation and maintenance cloud platform is used for storing data uploaded by the intelligent environment-control electronic control subsystem, providing storage virtualization resources through a plurality of virtual servers, storing the acquired data of each device in a storage resource pool, and distributing the acquired data on a plurality of server hosts; by utilizing functions of cluster application, a grid technology, a distributed file system and the like, a large number of storage devices of different types in a network are assembled through application software to cooperatively work, data storage and service access are provided for the intelligent environment-friendly electric control subsystem together, all station equipment data monitoring, equipment operation early warning and inspection operation are checked in real time, three-dimensional management, intelligent data analysis and complete life cycle visual management of equipment are carried out by combining a BIM technology, a remote control instruction is issued in real time, and the intelligent environment-friendly electric control subsystem is centrally monitored and controlled.
As shown in FIG. 2, the invention adopts an electromechanical integrated intelligent centralized control system, and adopts a mode of combining a field distributed intelligent control cabinet and a full-life-cycle intelligent operation and maintenance cloud platform based on a BIM concept. The distributed intelligent control cabinet is directly connected with corresponding hardware equipment to complete data collection and intelligent equipment control. The cloud platform is directly connected with each distributed intelligent control cabinet in a butt joint mode, all data are reported to the cloud platform to be stored, and corresponding control instructions can be issued through the cloud platform to complete control operation. The integrated intelligent centralized control system for the ventilation air conditioners in each station automatically adjusts the measured data of the on-site environment monitoring sensors in real time according to seasons, operation time intervals, passenger flow conditions and the like, so that energy-saving operation is realized. The intelligent centralized control system is convenient for realizing the wind-water linkage complex mode control of the ventilation air-conditioning system so as to achieve better energy-saving effect. The intelligent centralized control system is connected to the rail transit energy management system, so that the electric energy of each loop and each system can be measured, the energy-saving management and analysis are facilitated, and the energy-saving effect is improved.
As shown in FIG. 3, the invention adopts a distributed intelligent control mode, the control mode is divided into two layers of an intelligent control system and a field intelligent module, the two layers are connected by adopting an industrial bus, and the control is realized by a layered distributed intelligent module. Each intelligent module is an intelligent device integrating display, information acquisition, processing, communication and control. The whole system is simple in structure, and each intelligent module can work independently and can work in a system association mode. Therefore, the reliability, the anti-interference performance, the expansibility, the maintenance and the like are very convenient.
In this embodiment, the intelligent environmental control electronic system comprises an environmental control electric control room, and a tunnel ventilation and station heat extraction intelligent environmental control cabinet, a public area ventilation and air conditioning system intelligent environmental control cabinet, a ventilation and air conditioning system intelligent environmental control cabinet for equipment management, an air-conditioning water system intelligent environmental control cabinet and an intelligent data monitoring terminal which are respectively in communication connection with the environmental control electric control room; the single intelligent environmental control cabinet is an intelligent device integrating functions of strong current, weak current, display, information acquisition, processing, communication, energy-saving control and the like. The whole system adopts the Ethernet technology and applies a loop structure to realize a redundant system. A centralized control system human-computer operation interface is arranged in the environment-controlled electric control room, so that manual control of different modes and single equipment can be realized. The intelligent environmental control cabinet for tunnel ventilation and station heat extraction is respectively connected with a tunnel fan, a heat extraction fan, a jet fan and a combined air valve; the intelligent environmental control cabinet of the public area ventilation air-conditioning system is respectively connected with the combined air-conditioning unit, the return exhaust fan, the electric air valve and the fan coil; the intelligent ring control cabinet of the ventilation air-conditioning system for equipment management is respectively connected with a cabinet air conditioner, an air return exhauster and an electric air valve; the air-conditioning water system intelligent environmental control cabinet is respectively connected with a water chilling unit, a freezing water pump, a cooling tower, a water treatment device, an electric butterfly valve, a balance valve and a differential pressure bypass valve; the intelligent data monitoring terminal is respectively connected with an outdoor weather monitor, a temperature and humidity sensor, a CO2 concentration sensor, a PM2.5 detector, an air volume sensor, an electromagnetic flow sensor, a pressure sensor, an intelligent electric measuring instrument and a refrigerant leakage online monitoring system.
In the embodiment, the ventilation air-conditioning equipment in the intelligent environment-controlled electronic control subsystem is centrally distributed by each intelligent environment-controlled cabinet in the environment-controlled electronic control room, the water chilling unit is directly powered by the voltage-reducing substation, and the distribution of the environment-controlled equipment is divided into a primary load, a secondary load and a tertiary load according to different purposes and importance; the primary load is divided into one group or a plurality of groups according to the load capacity, two sections of low-voltage buses of the substation respectively introduce one path of power supply to the environment-controlled electric control room, and an integrated PC (personal computer) level dual-power switching device is adopted to switch the power supply scheme; the environment-controlled non-fire-fighting load is supplied with power by a single loop of a station substation.
The air-conditioning water system (except the water chilling unit) is distributed by the environmental control electric control cabinet and is controlled by the intelligent environmental control cabinet of the air-conditioning water system. The power lighting supplies power to the air conditioning water system from different bus sections of the substation, and each section of power supply is responsible for supplying power to a set of water chilling unit and a water pump and other equipment matched with the water chilling unit.
The interval jet fan is powered by an environment-controlled electric control room or a field dual-power switching box according to the condition.
In this embodiment, as shown in fig. 4, the intelligent environment-controlled electronic control subsystem not only collects the working states of the monitored objects, but also has the functions of sequence control, mode control, time control, fuzzy control, point control, and the like. The intelligent centralized control cabinet realizes centralized monitoring and management through the Ethernet, a subordinate intelligent environment control cabinet, an intelligent data monitoring terminal and the like. Meanwhile, the system is integrated in a comprehensive monitoring system, is independent of the BAS system, and can be communicated with the BAS system and directly uploaded to an intelligent operation and maintenance cloud platform.
The ventilation air-conditioning equipment adopts the power distribution and control of an intelligent environmental control cabinet, consists of equipment such as an intelligent control acquisition element, a field bus, a communication manager and the like in the cabinet, and is connected with an intelligent centralized control cabinet. The intelligent centralized control system is accessed into the comprehensive monitoring system, is mutually independent with the BAS system, and reserves a communication interface with the station energy management system. The intelligent centralized control system monitors and controls all ventilation air-conditioning system equipment, and automatically adjusts the measured data in real time through the field environment monitoring sensor according to seasons, operation time intervals, passenger flow conditions and the like, so that energy-saving operation is realized.
For three-phase motor loops, such as various fans and air conditioners, intelligent elements are as follows: frequency converter, motor protection control module. For single-phase motor return circuit, like electronic blast gate, electronic butterfly valve, the intelligent component is: smart hand boxes or smart I/O. The functions of measurement, control, protection and the like of ventilation air-conditioning equipment (mainly comprising various fans, air conditioners and electric air valves) are mainly realized.
The intelligent environment-controlled electronic control subsystem adopts three-level control modes of central control, station control room control and local control; wherein
The central control adopts a central control subsystem arranged in a control center to monitor the whole-line station ventilation air-conditioning system by taking a central monitoring network and a station equipment monitoring network as a basic network system, checks all station equipment data monitoring, equipment operation early warning and routing inspection operation in real time through an intelligent operation and maintenance cloud platform, performs three-dimensional management, intelligent data analysis and equipment life cycle management by combining a BIM technology, issues a remote control instruction in real time, and performs centralized monitoring and control on an intelligent environment-controlled electric control subsystem; and the large-screen display function provided by the cloud platform is utilized, so that the real-time global monitoring of the central control room staff is facilitated.
The station control room monitors and controls the intelligent centralized control system by adopting the comprehensive monitoring platform in each station control room, and checks monitoring data, operation early warning and warning, inspection operation and the like of each ventilation air-conditioning equipment in the station in real time.
The environment-controlled electric control room is mainly provided with an intelligent centralized control cabinet, an intelligent environment-controlled cabinet of a public area ventilation air-conditioning system, an intelligent environment-controlled cabinet of a ventilation air-conditioning system for equipment management, an intelligent environment-controlled cabinet of an air-conditioning water system, an intelligent data monitoring terminal and the like. The single intelligent control cabinet is an intelligent device integrating functions of strong current, weak current, display, information acquisition, processing, communication, energy-saving control and the like. The intelligent centralized control system has the functions of sequence control, mode control, time control, fuzzy control, point control and the like.
The local control controls various devices at the position, an electric air valve and a water valve, and has control priority.
The intelligent environment-controlled electronic control subsystem sets power control switches near the ventilator, the water chilling unit, the water pump, the air-conditioning tail end and the ground cooling tower equipment in the air-conditioning ventilator room for local control, and the station control room and the control center receive operation signals of the intelligent environment-controlled electronic control subsystem but fail to control the intelligent environment-controlled electronic control subsystem; after the local control finishes the operation, a signal is fed back to a station control room and a control center, and the normal function of the station control room and the control center is recovered.
In this embodiment, an interface for communicating with a station energy management system is reserved in the intelligent environment-friendly electric control subsystem, and the station energy management system is used for performing power distribution management on the ventilation and air-conditioning equipment and optimizing a power supply scheme; the intelligent environmental control cabinets in the environmental control electric control rooms are used for centralized power distribution, the electric energy of each loop and each system is measured by adopting various sensor data provided by the intelligent data monitoring terminal and the data of the intelligent electric quantity meter, and the electric quantity data is analyzed by utilizing an EJ energy-saving algorithm, so that energy-saving management is realized.
The EJ energy-saving algorithm specifically comprises the following steps:
s1, preprocessing the collected current electric quantity data, specifically:
firstly, removing noise data, detecting outlier data points by adopting a denoising algorithm, and carrying out partial deletion;
then, carrying out type conversion operation on the data, and carrying out unification operation on the data types by adopting a one-hot vector coding method;
then, carrying out normalization operation on the converted data, and unifying vector dimensions;
finally, a sampling algorithm is adopted to carry out random sampling on the data, and the problem of data overfitting is eliminated;
s2, establishing an EJ energy-saving model, analyzing electric quantity data by using the EJ energy-saving model, and realizing energy-saving management, wherein the energy-saving management specifically comprises the following steps:
let a denote as a single data vector, let PxFor a single set of data vectors, then Pi＝[ai,a i +1,ai+2,ai+3]Wherein i<N-3, wherein n represents the number of the electric quantity data collected in a period of time; then setting a hyperparameter k, an energy-saving threshold G and a historical energy-saving index J corresponding to each electric quantity data in a historical time period in the EJ model based on an expert experience rule, and expressing the obtained EJ energy-saving model as follows:
Yz＝[(w*Pz+b)*ln(k),(w*Pz+1+b)*ln(k),(w*Pz+2+b)*ln(k),(w*Pz+3+b)*ln(k)]
L(w,b)＝(ln(YZ)-ln(E)-Ji*(w,b)*Pi)
wherein Y represents a vector matrix of fluctuation conditions of the electric quantity data within a set time; z represents a subscript of the Y vector matrix, and the value is less than i-3; ln () represents a logarithmic function; w and b represent parameters needing to be optimized in the EJ model; e represents the energy-saving probability value corresponding to the electric quantity data in the current time period; l () represents a loss function for constantly updating the parameters w and b until the global optimum is reached. And when the electric quantity data value of the current time period is input and the optimal EJ model is combined, if the output energy-saving probability value E is greater than the energy-saving threshold value G, starting an energy-saving management command.
In this embodiment, the intelligent environmental control electronic control subsystem is further in communication connection with the integrated monitoring system through the station BAS system. The BAS system in the station adopts computer network, communication and distributed technologies to perform centralized monitoring, control and management on the intelligent environment-friendly electric control subsystem. The system comprises a central control level, a station control room control level, local control level monitoring equipment and a real-time monitoring system formed by related communication networks, and realizes the monitoring of electromechanical equipment, the environmental monitoring, the energy-saving operation management, the environmental and equipment management, and the orderly linkage control and monitoring among a ventilation air-conditioning system and the equipment; the comprehensive monitoring system belongs to central control level monitoring, monitors a ventilation air conditioning system of a whole-line station, checks all station equipment data monitoring, intelligent early warning, data analysis and life cycle management in real time through an intelligent operation and maintenance cloud platform, issues a remote control instruction in real time, and performs centralized monitoring on the intelligent environment-controlled electric control subsystem.
In the embodiment, the intelligent environment-friendly electronic control subsystem is also in communication connection with the vehicle control room workstation. The vehicle control room workstation is used for monitoring and controlling the intelligent centralized control system by utilizing the comprehensive monitoring platform in each station control room, and realizes operation early warning and routing inspection operation by monitoring data and analyzing data in real time by each ventilation air-conditioning equipment of the station.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention and are to be construed as being without limitation to such specifically recited embodiments and examples. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.
Claims (10)
1. The utility model provides a thing networking equipment integration intelligence centralized control system based on BIM which characterized in that includes:
the intelligent environment-friendly electric control subsystem is used for acquiring the running state data of the strong and weak current equipment and the sensor data and the environment data in the system by utilizing the intelligent environment-friendly cabinet in a layered distributed mode and uploading the data to the intelligent operation and maintenance cloud platform; each intelligent ring control cabinet forms a ring network structure through Ethernet to perform power distribution, display, energy-saving control, data acquisition, data statistics and communication operation; the intelligent operation and maintenance cloud platform is used for providing data of each station device, and utilizing three-level control modes of central control, station control room control and local control to realize real-time intelligent monitoring and management of the ventilation and air conditioning system, wherein a central control subsystem carries out centralized monitoring and remote control on the whole-line station ventilation and air conditioning system, a comprehensive monitoring platform in the station control room monitors and controls the intelligent centralized control system, the local control controls various devices, electric air valves and water valves at the positions, and the priority of each level of control mode is regulated to enable each level of control mode to be carried out orderly; the method comprises the steps that through equipment data of each station provided by an intelligent operation and maintenance cloud platform, each intelligent environment control cabinet in an environment control electric control room is utilized to carry out centralized power distribution on the ventilation air-conditioning equipment and establish a power supply scheme, the output power of the ventilation air-conditioning equipment is optimized, and the ventilation air-conditioning equipment is enabled to run efficiently;
the intelligent operation and maintenance cloud platform is used for storing data uploaded by the intelligent environment-control electronic control subsystem, providing storage virtualization resources through a plurality of virtual servers, storing the acquired data of each device in a storage resource pool, and distributing the acquired data on a plurality of server hosts; by utilizing functions of cluster application, a grid technology, a distributed file system and the like, a large number of storage devices of different types in a network are assembled through application software to cooperatively work, data storage and service access are provided for the intelligent environment-friendly electric control subsystem together, all station equipment data monitoring, equipment operation early warning and inspection operation are checked in real time, three-dimensional management, intelligent data analysis and complete life cycle visual management of equipment are carried out by combining a BIM technology, a remote control instruction is issued in real time, and the intelligent environment-friendly electric control subsystem is centrally monitored and controlled.
2. The BIM-based integrated intelligent centralized control system of equipment of the Internet of things is characterized in that the intelligent environment-friendly electric control subsystem comprises an environment-friendly electric control room, a tunnel ventilation and station heat extraction intelligent environment-friendly cabinet, a public area ventilation and air-conditioning system intelligent environment-friendly cabinet, an equipment management ventilation and air-conditioning system intelligent environment-friendly cabinet, an air-conditioning water system intelligent environment-friendly cabinet and an intelligent data monitoring terminal, wherein the tunnel ventilation and station heat extraction intelligent environment-friendly cabinet is respectively in communication connection with the environment-friendly electric control room;
the tunnel ventilation and station heat extraction intelligent environmental control cabinet is respectively connected with a tunnel fan, a heat extraction fan, a jet fan and a combined air valve;
the intelligent environmental control cabinet of the public area ventilation air-conditioning system is respectively connected with the combined air-conditioning unit, the return exhaust fan, the electric air valve and the fan coil;
the intelligent ring control cabinet of the ventilation air-conditioning system for equipment management is respectively connected with a cabinet air conditioner, an air return exhauster and an electric air valve;
the intelligent environment-friendly cabinet of the air-conditioning water system is respectively connected with a water chilling unit, a freezing water pump, a cooling tower, a water treatment device, an electric butterfly valve, a balance valve and a differential pressure bypass valve;
the intelligent data monitoring terminal is respectively connected with an outdoor weather monitor, a temperature and humidity sensor, a CO2 concentration sensor, a PM2.5 detector, an air volume sensor, an electromagnetic flow sensor, a pressure sensor, an intelligent electric measuring instrument and a refrigerant leakage online monitoring system.
3. The BIM-based integrated intelligent centralized control system of equipment in the Internet of things is characterized in that ventilation and air-conditioning equipment in the intelligent environment-controlled electronic control subsystem is centrally distributed by each intelligent environment-controlled cabinet in an environment-controlled electronic control room, a water chilling unit is directly supplied with power by a voltage reduction substation, and the power distribution of the environment-controlled equipment is divided into a primary load, a secondary load and a tertiary load; the primary load is divided into one group or a plurality of groups according to the load capacity, two sections of low-voltage buses of the substation respectively introduce one path of power supply to the environment-controlled electric control room, and an integrated PC (personal computer) level dual-power switching device is adopted to switch the power supply scheme; the environment-controlled non-fire-fighting load is supplied with power by a single loop of a station substation.
4. The BIM-based integrated intelligent centralized control system of equipment in the Internet of things is characterized in that the intelligent environment-controlled electronic control subsystem adopts three-level control modes of central control, station control room control and local control; wherein
The central control adopts a central control subsystem arranged in a control center to monitor the whole-line station ventilation air-conditioning system, checks all station equipment data monitoring, equipment operation early warning and routing inspection operation in real time through an intelligent operation and maintenance cloud platform, performs three-dimensional management, intelligent data analysis and equipment life cycle management by combining a BIM technology, issues a remote control instruction in real time, and performs centralized monitoring and control on the intelligent environment-controlled electric control subsystem;
the station control room monitors and controls the intelligent centralized control system by adopting a comprehensive monitoring platform in each station control room, and checks monitoring data, operation early warning and routing inspection operation of each ventilation air-conditioning equipment in the station in real time;
the local control controls various devices at the position, an electric air valve and a water valve, and has control priority.
5. The BIM-based integrated intelligent centralized control system of equipment in the Internet of things is characterized in that the intelligent environment-controlled electronic control subsystem is provided with a power supply control switch for local control near a ventilator, a water chilling unit, a water pump, an air conditioner tail end and ground cooling tower equipment in an air conditioner ventilator room, and a station control room and a control center receive operation signals of the station control room and the control center but fail to control the station control room and the control center; after the local control finishes the operation, a signal is fed back to a station control room and a control center, and the normal function of the station control room and the control center is recovered.
6. The BIM-based integrated intelligent centralized control system of equipment in the Internet of things is characterized in that an interface for communicating with a station energy management system is reserved in the intelligent environment-controlled electric control subsystem, and the station energy management system is used for carrying out power distribution management on ventilation air-conditioning equipment and optimizing a power supply scheme; the intelligent environmental control cabinets in the environmental control electric control rooms are used for centralized power distribution, the electric energy of each loop and each system is measured by adopting various sensor data provided by the intelligent data monitoring terminal and the data of the intelligent electric quantity meter, and the electric quantity data is analyzed by utilizing an EJ energy-saving algorithm, so that energy-saving management is realized.
7. The BIM-based integrated intelligent centralized control system of equipment in the Internet of things according to claim 6, wherein the EJ energy-saving algorithm specifically comprises:
s1, preprocessing the collected current electric quantity data, specifically:
firstly, removing noise data, detecting outlier data points by adopting a denoising algorithm, and carrying out partial deletion;
then, carrying out type conversion operation on the data, and carrying out unification operation on the data types by adopting a one-hot vector coding method;
then, carrying out normalization operation on the converted data, and unifying vector dimensions;
finally, a sampling algorithm is adopted to randomly sample the data;
and S2, establishing an EJ energy-saving model, and analyzing the electric quantity data by using the EJ energy-saving model to realize energy-saving management.
8. The BIM-based integrated intelligent centralized control system of equipment in the Internet of things according to claim 7, wherein the establishment of the EJ energy-saving model specifically comprises:
let a denote as a single data vector, let PxFor a single set of data vectors, then Pi＝[ai,a i +1,ai+2,ai+3]Wherein i<N-3, wherein n represents the number of the electric quantity data collected in a period of time; then setting a hyperparameter k, an energy-saving threshold G and a historical energy-saving index J corresponding to each electric quantity data in a historical time period in the EJ model based on an expert experience rule, and expressing the obtained EJ energy-saving model as follows:
Yz＝[(w*Pz+b)*ln(k),(w*Pz+1+b)*ln(k),(w*Pz+2+b)*ln(k),(w*Pz+3+b)*ln(k)]
L(w,b)＝(ln(YZ)-ln(E)-Ji*(w,b)*Pi)
wherein Y represents a vector matrix of fluctuation conditions of the electric quantity data within a set time; z represents the subscript of the Y vector matrix; ln () represents a logarithmic function; w and b represent parameters needing to be optimized in the EJ model; e represents the energy-saving probability value corresponding to the electric quantity data in the current time period; l () represents a loss function.
9. The BIM-based integrated intelligent centralized control system of Internet of things equipment of claim 8, wherein the intelligent environmental control electric control subsystem is further in communication connection with a comprehensive monitoring system through a station BAS system, and the station BAS system adopts computer network, communication and distributed technology to perform centralized monitoring, control and management on the intelligent environmental control electric control subsystem; the system comprises a central control level, a station control room control level, local control level monitoring equipment and a real-time monitoring system formed by related communication networks, and realizes the monitoring of electromechanical equipment, the environmental monitoring, the energy-saving operation management, the environmental and equipment management, and the orderly linkage control and monitoring among a ventilation air-conditioning system and the equipment; the comprehensive monitoring system belongs to central control level monitoring, monitors a ventilation air conditioning system of a whole-line station, checks all station equipment data monitoring, intelligent early warning, data analysis and life cycle management in real time through an intelligent operation and maintenance cloud platform, issues a remote control instruction in real time, and performs centralized monitoring on the intelligent environment-controlled electric control subsystem.
10. The BIM-based integrated intelligent centralized control system of equipment in the Internet of things is characterized in that the intelligent environment-friendly electronic control subsystem is in communication connection with a vehicle control room workstation, the vehicle control room workstation is used for monitoring and controlling the intelligent centralized control system by utilizing a comprehensive monitoring platform in each station control room, and operation early warning and routing inspection operation is realized by monitoring data and analyzing data in real time of each ventilation air-conditioning equipment in each station.
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