Environmental control energy-saving transformation system suitable for rail transit subway station

Abstract

The invention discloses an environmental control energy-saving reconstruction system suitable for a rail transit subway station, and the system is characterized in that a data obtaining module is used for obtaining in-station environment data and system operation data around equipment; the data processing module is used for processing the in-station environment data and the system operation data to obtain initial operation data; the intelligent control module is used for acquiring the initial operation data and performing data analysis on the initial operation data by utilizing an equipment energy-saving model to obtain equipment operation parameters; and the energy-saving adjustment module is used for performing energy-saving adjustment on the operation state of the system equipment based on the equipment operation parameters to obtain the target operation state of the equipment. Through the application of an intelligent control system and a frequency conversion technology, the energy consumption of equipment such as a ventilation air conditioner can be obviously reduced, so that carbon emission is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of rail transit, and in particular to an environmental control and energy-saving transformation system suitable for rail transit subway stations. Background Art

[0002] According to the "Annual Statistics and Analysis of Urban Rail Transit" released by the China Urban Rail Transit Association, the total energy consumption of urban rail transit in China in 2020 was 17.24 billion kWh, a year-on-year increase of 12.9%; the total energy consumption of urban rail transit in China in 2021 was 21.31 billion kWh, a year-on-year increase of 23.6%; the total electricity consumption of urban rail transit in China in 2022 was 22.792 billion kWh, a year-on-year increase of 6.89%. There are still many pain points in the environmental control and energy saving of the rail transit industry, and there is a large space for energy saving. Therefore, how to establish an environmental control and energy-saving transformation system suitable for rail transit subway stations and realize energy-saving operation of subway environmental control systems is a technical problem that needs to be solved at this stage. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems and to design an environmental control and energy-saving transformation system suitable for rail transit subway stations.

[0004] To achieve the above object, the technical solution of the present invention is that, further, in the above-mentioned environmental control and energy-saving transformation system applicable to rail transit subway stations, the environmental control and energy-saving transformation system includes the following modules:

[0005] Data acquisition module, used to obtain the station environment data and system operation data around the equipment;

[0006] A data processing module, used for processing the station environment data and system operation data to obtain initial operation data;

[0007] An intelligent control module is used to obtain the initial operation data, and perform data analysis on the initial operation data using an equipment energy-saving model to obtain equipment operation parameters;

[0008] The energy-saving adjustment module is used to perform energy-saving adjustment on the operating state of the system equipment based on the equipment operating parameters to obtain the target operating state of the equipment.

[0009] Furthermore, in the above-mentioned environmental control and energy-saving transformation system applicable to rail transit subway stations, the data acquisition module includes the following submodules:

[0010] An acquisition submodule is used to acquire the in-station environment data around the device, wherein the in-station environment data at least includes in-station temperature data, in-station humidity data, light intensity data, and air quality data;

[0011] Thermistor sensor is used to obtain the change data of resistance value caused by temperature change through the thermistor sensor to obtain the temperature data in the station;

[0012] Capacitive humidity sensor, used to obtain capacitance value data caused by environmental humidity changes using the capacitive humidity sensor, and obtain humidity data in the station;

[0013] A photodiode sensor is used to obtain different current data generated by different light intensities through the photodiode sensor to obtain light intensity data;

[0014] Infrared carbon dioxide sensor is used to obtain the absorption concentration of infrared light of a specific wavelength to obtain air quality data.

[0015] Furthermore, in the above-mentioned environmental control and energy-saving transformation system applicable to rail transit subway stations, the data acquisition module also includes the following submodules:

[0016] An acquisition submodule is used to acquire system operation data, wherein the station environment data at least includes equipment energy consumption data, equipment operation status data, and passenger flow data;

[0017] Smart meters are used to obtain current and voltage data from power equipment in rail transit and calculate equipment energy consumption data;

[0018] A rotary encoder is used to obtain the rotary motion by using the rotary encoder and convert it into electrical signal pulses, calculate the rotation speed according to the number of pulses and time interval, and obtain the equipment operation status data;

[0019] The infrared light curtain sensor is used to emit and receive infrared light through the infrared light curtain sensor. When someone passes by, the light is blocked to generate a signal change to count the passenger flow and obtain the passenger flow data.

[0020] Furthermore, in the above-mentioned environmental control and energy-saving transformation system applicable to rail transit subway stations, the data processing module includes the following submodules:

[0021] The outlier removal submodule is used to identify and remove outliers using the 3σ principle to obtain normal operating data;

[0022] The missing value filling submodule is used to estimate the missing value by linear interpolation, that is, to obtain the filled running data by linear calculation based on the values ​​of the adjacent data points before and after;

[0023] The multi-sensor data fusion submodule is used to fuse the data of the temperature sensor and the humidity sensor using the weighted average method to obtain fused operation data;

[0024] The normalization submodule is used to perform data normalization processing on the fused operation data to obtain initial operation data.

[0025] Furthermore, in the above-mentioned environmental control and energy-saving transformation system applicable to rail transit subway stations, the intelligent control module includes the following submodules:

[0026] A submodule is established to establish an energy-saving model for equipment based on the GA genetic algorithm. Binary coding is used to randomly generate an initial population of equipment operation, and each individual represents a combination of equipment operation parameters.

[0027] The fitness evaluation submodule is used to calculate the fitness value of each individual according to the initial operation data and the preset objective function, and the fitness value reflects the quality of the operation parameter combination scheme represented by the individual;

[0028] The genetic operation submodule is used to select a part of excellent individuals from the current population as parents according to the fitness value of the individuals by using the selection operation to breed the next generation of individuals; the selected parent individuals are paired by using the crossover operation, and some genes are exchanged according to a certain crossover probability to generate new offspring individuals;

[0029] The iterative optimization submodule is used to continuously update the population through multiple genetic operations so that the individuals in the population gradually evolve towards the optimal solution. When the maximum number of iterations is reached, the algorithm stops iterating and outputs the device operating parameters.

[0030] Furthermore, in the above-mentioned environmental control energy-saving transformation system applicable to rail transit subway stations, the energy-saving adjustment module includes the following submodules:

[0031] The equipment frequency conversion submodule is used to use frequency conversion technology for the water pumps and fans of the subway station ventilation and air conditioning system, and to save energy in the subway station system by adjusting the frequency of the water pumps and fans;

[0032] Line building submodule: used to build the line platform network channel using the spare optical fiber of the line backbone network to achieve remote centralized management and control;

[0033] The BAS system interface submodule is used to upgrade the BAS system interface.

[0034] Furthermore, in the above-mentioned environmental control and energy-saving transformation system applicable to rail transit subway stations, the equipment frequency conversion submodule includes the following units:

[0035] Central group control cabinet transformation unit, used to add switches, upgrade PLC hardware, add Fengshui linkage industrial computers to the cabinet, and install and debug system wiring;

[0036] Refrigeration pump transformation unit, used for refrigeration pump pair, cooling pump inverter cabinet installation, hand operation box or floor cabinet transformation, cabinet strong and weak current wiring, and equipped with cabinet neutral wire;

[0037] The system wiring unit is used to install and wire the system temperature, pressure, and flow sensors, and to install and wire the electric meters of water pumps, main units, cooling towers, etc.

[0038] Furthermore, in the above-mentioned environmental control and energy-saving transformation system applicable to rail transit subway stations, the equipment frequency conversion submodule also includes the following units:

[0039] The first installation unit is used to install the fan frequency conversion cabinet, modify the hand control box and floor cabinet, connect the cabinet power and weak current, and equip the cabinet with neutral wire;

[0040] The second installation unit is used for installing the wind turbine electric meter and installing and wiring the electric meter data transmission cable;

[0041] The data collector installation unit is used to install data collectors on both ends of A / B and connect the terminal fan frequency fault meter signal to the data collector;

[0042] The sensor installation unit is used to install temperature, humidity and CO2 concentration sensors.

[0043] Furthermore, in the above-mentioned environmental control and energy-saving transformation system applicable to rail transit subway stations, the line building submodule includes the following units:

[0044] Energy-saving model building unit, used to build energy-saving models for environmental control equipment based on load forecasting of actual historical data, high-precision equipment and system performance models, and iterative optimization algorithms;

[0045] Iterative optimization unit, used to iterate the water system and wind system, and optimize the coupling relationship and mutual influence between the water system and the large and small systems in the station air-conditioning system;

[0046] A parameter acquisition unit is used to dynamically find the optimal control parameters of the system that minimize the energy consumption of the entire ventilation and air-conditioning system at the current moment through a multi-objective optimization control algorithm;

[0047] The operation control unit is used to use the analysis results of the subway station energy consumption model as the control basis to realize the linkage operation control of each control system and optimize the system.

[0048] Furthermore, in the above-mentioned environmental control and energy-saving transformation system applicable to rail transit subway stations, the BAS system interface submodule includes the following units:

[0049] The control interface adds a unit to change the integrated monitoring control interface within the station and add an energy-saving mode to the monitoring page;

[0050] Add a communication interface unit to monitor and establish a communication interface with the environmental control and energy-saving system through BAS;

[0051] The BAS program modification unit is used to transmit the sensor data in the station to the environmental control and energy-saving system through the established communication interface, including but not limited to the temperature and humidity sensor data and carbon dioxide sensor data of the platform layer, the temperature and humidity sensor data and carbon dioxide sensor data of the hall layer, and the relevant sensor data between the equipment;

[0052] BAS program modification unit, used to change the information and control channels of the air conditioning water system related equipment to interact through the newly established communication interface;

[0053] The BAS program modification unit is used to transmit the start / stop status, frequency feedback, and power frequency conversion status information of the fans with original frequency conversion capability in the station to the environmental control and energy-saving system through the established interface;

[0054] The BAS program modification unit is used to transmit the start and stop status information of the fans in the station that do not have frequency conversion capabilities to the environmental control and energy-saving system through the established interface;

[0055] BAS program modification unit, used for BAS, needs to provide fire signal output connection points, with no less than 1 each at the A and B ends.

[0056] Its beneficial effects are that, through the data acquisition module, it is used to obtain the in-station environmental data and system operation data around the equipment; the data processing module is used to process the in-station environmental data and system operation data to obtain the initial operation data; the intelligent control module is used to obtain the initial operation data, and use the equipment energy-saving model to perform data analysis on the initial operation data to obtain the equipment operation parameters; the energy-saving adjustment module is used to adjust the operation state of the system equipment based on the equipment operation parameters to obtain the target operation state of the equipment. 1. Energy saving and emission reduction: Through the application of intelligent control systems and frequency conversion technology, the energy consumption of equipment such as ventilation and air conditioning can be significantly reduced, thereby reducing carbon emissions. 2. Improve energy utilization efficiency: Intelligent management enables the system to dynamically adjust the operation state according to actual needs, avoiding unnecessary energy waste. 4. Reduced operation and maintenance costs: After implementing remote centralized management and fault warning mechanisms, problems can be discovered and solved more quickly, reducing maintenance time and costs. At the same time, the service life of the equipment is extended because the system operates more efficiently and stably. 5. Improvement of intelligent management level: By using advanced information technology to build a comprehensive management platform, we have achieved integrated monitoring and dispatching command capabilities for the conditions of facilities at multiple sites and even the entire line, greatly enhancing the flexibility and response speed of operation management. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the following detailed description of the preferred embodiment.The drawings are only for the purpose of illustrating the preferred embodiments and are not to be construed as limiting the invention.

[0058] Figure 1 A schematic diagram of an embodiment of an environmental control and energy-saving transformation system applicable to a rail transit subway station in an embodiment of the present invention;

[0059] Figure 2 This is a system architecture diagram of an environmental control and energy-saving transformation system applicable to a rail transit subway station in an embodiment of the present invention;

[0060] Figure 3 This is a line communication network architecture diagram of an environmental control and energy-saving transformation system suitable for a rail transit subway station in an embodiment of the present invention. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0062] Those skilled in the art will appreciate that, unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0063] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1 As shown, an environmental control and energy-saving transformation system applicable to rail transit subway stations includes the following modules:

[0064] Data acquisition module, used to obtain the station environment data and system operation data around the equipment;

[0065] Specifically, this embodiment also includes:

[0066] An acquisition submodule is used to acquire the in-station environment data around the device, wherein the in-station environment data at least includes in-station temperature data, in-station humidity data, light intensity data, and air quality data;

[0067] Thermistor sensor is used to obtain the change data of resistance value caused by temperature change through the thermistor sensor to obtain the temperature data in the station;

[0068] Capacitive humidity sensor, used to obtain capacitance value data caused by environmental humidity changes using the capacitive humidity sensor, and obtain humidity data in the station;

[0069] A photodiode sensor is used to obtain different current data generated by different light intensities through the photodiode sensor to obtain light intensity data;

[0070] Infrared carbon dioxide sensor is used to obtain the absorption concentration of infrared light of a specific wavelength to obtain air quality data.

[0071] An acquisition submodule is used to acquire system operation data, wherein the station environment data at least includes equipment energy consumption data, equipment operation status data, and passenger flow data;

[0072] Smart meters are used to obtain current and voltage data from power equipment in rail transit and calculate equipment energy consumption data;

[0073] A rotary encoder is used to obtain the rotary motion by using the rotary encoder and convert it into electrical signal pulses, calculate the rotation speed according to the number of pulses and time interval, and obtain the equipment operation status data;

[0074] The infrared light curtain sensor is used to emit and receive infrared light through the infrared light curtain sensor. When someone passes by, the light is blocked to generate a signal change to count the passenger flow and obtain the passenger flow data.

[0075] A data processing module, used for processing the station environment data and system operation data to obtain initial operation data;

[0076] Specifically, this embodiment also includes

[0077] The outlier removal submodule is used to identify and remove outliers using the 3σ principle to obtain normal operating data;

[0078] The missing value filling submodule is used to estimate the missing value by linear interpolation, that is, to obtain the filled running data by linear calculation based on the values ​​of the adjacent data points before and after;

[0079] The multi-sensor data fusion submodule is used to fuse the data of the temperature sensor and the humidity sensor using the weighted average method to obtain fused operation data;

[0080] The normalization submodule is used to perform data normalization processing on the fused operation data to obtain initial operation data.

[0081] An intelligent control module is used to obtain the initial operation data, and perform data analysis on the initial operation data using an equipment energy-saving model to obtain equipment operation parameters;

[0082] Specifically, this embodiment also includes

[0083] A submodule is established to establish an energy-saving model for equipment based on the GA genetic algorithm. Binary coding is used to randomly generate an initial population of equipment operation, and each individual represents a combination of equipment operation parameters.

[0084] The fitness evaluation submodule is used to calculate the fitness value of each individual according to the initial operation data and the preset objective function, and the fitness value reflects the quality of the operation parameter combination scheme represented by the individual;

[0085] The genetic operation submodule is used to select a part of excellent individuals from the current population as parents according to the fitness value of the individuals by using the selection operation to breed the next generation of individuals; the selected parent individuals are paired by using the crossover operation, and some genes are exchanged according to a certain crossover probability to generate new offspring individuals;

[0086] The iterative optimization submodule is used to continuously update the population through multiple genetic operations so that the individuals in the population gradually evolve towards the optimal solution. When the maximum number of iterations is reached, the algorithm stops iterating and outputs the device operating parameters.

[0087] The energy-saving adjustment module is used to perform energy-saving adjustment on the operating state of the system equipment based on the equipment operating parameters to obtain the target operating state of the equipment.

[0088] Specifically, this embodiment also includes

[0089] The equipment frequency conversion submodule is used to use frequency conversion technology for the water pumps and fans of the subway station ventilation and air conditioning system, and to save energy in the subway station system by adjusting the frequency of the water pumps and fans;

[0090] Line building submodule: used to build the line platform network channel using the spare optical fiber of the line backbone network to achieve remote centralized management and control;

[0091] The BAS system interface submodule is used to upgrade the BAS system interface.

[0092] Specifically, the device frequency conversion submodule in this embodiment includes the following units:

[0093] Central group control cabinet transformation unit, used to add switches, upgrade PLC hardware, add Fengshui linkage industrial computers to the cabinet, and install and debug system wiring;

[0094] Refrigeration pump transformation unit, used for refrigeration pump pair, cooling pump inverter cabinet installation, hand operation box or floor cabinet transformation, cabinet strong and weak current wiring, and equipped with cabinet neutral wire;

[0095] The system wiring unit is used to install and wire the system temperature, pressure, and flow sensors, and to install and wire the electric meters of water pumps, main units, cooling towers, etc.

[0096] Specifically, in this embodiment, the device frequency conversion submodule also includes the following units:

[0097] The first installation unit is used to install the fan frequency conversion cabinet, modify the hand control box and floor cabinet, connect the cabinet power and weak current, and equip the cabinet with neutral wire;

[0098] The second installation unit is used for installing the wind turbine electric meter and installing and wiring the electric meter data transmission cable;

[0099] The data collector installation unit is used to install data collectors on both ends of A / B and connect the terminal fan frequency fault meter signal to the data collector;

[0100] The sensor installation unit is used to install temperature, humidity and CO2 concentration sensors.

[0101] Specifically, the line building submodule in this embodiment includes the following units:

[0102] Energy-saving model building unit, used to build energy-saving models for environmental control equipment based on load forecasting of actual historical data, high-precision equipment and system performance models, and iterative optimization algorithms;

[0103] Iterative optimization unit, used to iterate the water system and wind system, and optimize the coupling relationship and mutual influence between the water system and the large and small systems in the station air-conditioning system;

[0104] A parameter acquisition unit is used to dynamically find the optimal control parameters of the system that minimize the energy consumption of the entire ventilation and air-conditioning system at the current moment through a multi-objective optimization control algorithm;

[0105] The operation control unit is used to use the analysis results of the subway station energy consumption model as the control basis to realize the linkage operation control of each control system and optimize the system.

[0106] Specifically, the BAS system interface submodule in this embodiment includes the following units:

[0107] The control interface adds a unit to change the integrated monitoring control interface within the station and add an energy-saving mode to the monitoring page;

[0108] Add a communication interface unit to monitor and establish a communication interface with the environmental control and energy-saving system through BAS;

[0109] The BAS program modification unit is used to transmit the sensor data in the station to the environmental control and energy-saving system through the established communication interface, including but not limited to the temperature and humidity sensor data and carbon dioxide sensor data of the platform layer, the temperature and humidity sensor data and carbon dioxide sensor data of the hall layer, and the relevant sensor data between the equipment;

[0110] BAS program modification unit, used to change the information and control channels of the air conditioning water system related equipment to interact through the newly established communication interface;

[0111] The BAS program modification unit is used to transmit the start / stop status, frequency feedback, and power frequency conversion status information of the fans with original frequency conversion capability in the station to the environmental control and energy-saving system through the established interface;

[0112] The BAS program modification unit is used to transmit the start and stop status information of the fans in the station that do not have frequency conversion capabilities to the environmental control and energy-saving system through the established interface;

[0113] BAS program modification unit, used for BAS, needs to provide fire signal output connection points, with no less than 1 each at the A and B ends.

[0114] Its beneficial effects are that, through the data acquisition module, it is used to obtain the in-station environmental data and system operation data around the equipment; the data processing module is used to process the in-station environmental data and system operation data to obtain the initial operation data; the intelligent control module is used to obtain the initial operation data, and use the equipment energy-saving model to perform data analysis on the initial operation data to obtain the equipment operation parameters; the energy-saving adjustment module is used to adjust the operation state of the system equipment based on the equipment operation parameters to obtain the target operation state of the equipment. 1. Energy saving and emission reduction: Through the application of intelligent control systems and frequency conversion technology, the energy consumption of equipment such as ventilation and air conditioning can be significantly reduced, thereby reducing carbon emissions. 2. Improve energy utilization efficiency: Intelligent management enables the system to dynamically adjust the operation state according to actual needs, avoiding unnecessary energy waste. 4. Reduced operation and maintenance costs: After implementing remote centralized management and fault warning mechanisms, problems can be discovered and solved more quickly, reducing maintenance time and costs. At the same time, the service life of the equipment is extended because the system operates more efficiently and stably. 5. Improvement of intelligent management level: By using advanced information technology to build a comprehensive management platform, we have achieved integrated monitoring and dispatching command capabilities for the conditions of facilities at multiple sites and even the entire line, greatly enhancing the flexibility and response speed of operation management.

[0115] See also Figure 2 , a system architecture diagram of an environmental control and energy-saving transformation system applicable to rail transit subway stations:

[0116] 1. Introduce intelligent control system: By installing sensors, intelligent control modules and energy-saving algorithms, the station environment and system operation data can be obtained in real time, and the system equipment operation status can be automatically adjusted according to the data analysis results to achieve energy-saving effects.

[0117] 2. Use frequency conversion technology: Use frequency conversion technology for the water pumps and fans of the subway station ventilation and air-conditioning system. By adjusting the frequency of the water pumps and fans, the energy-saving effect of the system itself can be achieved.

[0118] 3. Build a line platform: Use the spare optical fiber of the line backbone network to build a line platform network channel to achieve remote centralized management and control.

[0119] 4. Upgrade and transformation of BAS system interface.

[0120] Water system upgrade and renovation content:

[0121] 1. Reconstruction of central group control cabinet: adding or reconstructing switches, PLC upgrade and other hardware, adding Fengshui linkage industrial computers to the cabinet, and installing and debugging system wiring;

[0122] 2. Installation of inverter cabinets for refrigeration pumps and cooling pumps, modification of hand-operated boxes or floor cabinets, wiring of strong and weak electricity in the cabinets, and provision of cabinet neutral wires;

[0123] 3. Installation and wiring of system temperature, pressure and flow sensors;

[0124] 4. Installation and wiring of electric meters for water pumps, main engines, cooling towers, etc.;

[0125] Contents of wind system upgrade and transformation:

[0126] 1. Installation of fan frequency conversion cabinet, modification of hand control box or floor cabinet, wiring of strong and weak electricity in the cabinet, and provision of cabinet neutral wire;

[0127] 2. Installation of wind turbine electric meter and installation and wiring of electric meter data transmission cables;

[0128] 3. Install data collectors on both ends of A / B and connect the terminal fan frequency fault meter signal to the data collector.

[0129] 4. Installation of temperature, humidity and CO2 concentration sensors.

[0130] BAS interface transformation content:

[0131] 1. Change the comprehensive monitoring control interface within the site: add a switch button between energy-saving mode and normal mode on the page for comprehensive monitoring.

[0132] 2. Add communication interface: Comprehensive monitoring is required to establish a communication interface with the environmental control and energy-saving system through BAS (the communication protocol is MODBUS TCP or ETHERNET / IP).

[0133] 3. BAS program modification: BAS transmits the sensor data in the station to the environmental control and energy-saving system through the established communication interface, including but not limited to the temperature and humidity sensor data and carbon dioxide sensor data at the platform level, the temperature and humidity sensor data and carbon dioxide sensor data at the hall level, and related sensor data between equipment.

[0134] 4. BAS program modification: BAS needs to change the information and control channels of the air-conditioning water system related equipment (such as the start and stop status of the refrigeration pump, cooling pump, cooling tower, the start and stop status of the chiller, the outlet water temperature, the status and control of related valves, the one-button start and stop command issuance of the air-conditioning water system, etc.), and instead interact through the newly established communication interface.

[0135] 5. BAS program modification: For fans with original frequency conversion capability in the station, information such as start / stop status, frequency feedback, and power frequency conversion status needs to be transmitted to the environmental control and energy-saving system through the established interface. In normal mode, the frequency follows the original logic, and BAS receives the frequency command issued by the comprehensive monitoring or adjusts the frequency according to the schedule. In energy-saving mode, BAS receives the frequency command transmitted by the environmental control and energy-saving system through the interface to adjust the frequency. When in fire protection mode, BAS follows the original mode.

[0136] 6. BAS program modification: For fans in the station that do not have frequency conversion capabilities, information such as start and stop status needs to be transmitted to the environmental control and energy-saving system through the established interface.

[0137] 7. BAS program modification: BAS needs to provide fire signal output connection points, with no less than 1 each at the A and B ends.

[0138] See also Figure 3 , a line communication network architecture diagram in an environmental control and energy-saving transformation system applicable to rail transit subway stations:

[0139] Line platform functions: control homepage, system status, power consumption statistics, historical data, scheduled start and stop, AI settings, etc.

[0140] The line platform highlights the core highlights of AI intelligent algorithms. The environmental control energy-saving algorithm is based on load prediction of actual historical data, high-precision equipment and system performance models, iterative optimization algorithms, etc., to complete the simultaneous iteration and optimization of the water system and the wind system, thereby effectively coordinating and optimizing the coupling relationship and mutual influence of the water system and large and small systems in the station air-conditioning system. Under the premise of ensuring the terminal indoor environment requirements and system load, through the multi-objective optimization control algorithm, the system optimal control parameters that minimize the energy consumption of the entire ventilation and air-conditioning system at the current moment are dynamically optimized in real time. The analysis results of the subway station energy consumption model are used as the control basis to realize the linkage operation control of each control system and achieve the overall optimization control of the system. The dynamic optimization process can be displayed and verified to maximize the energy-saving space and reduce the energy consumption cost of the ventilation and air-conditioning system.

[0141] Line network communication: Find the interface location of the spare optical fiber placed in the station during construction, light it, fuse it, and use related equipment to connect a fiber optic network and configure the switch.

[0142] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An environmental control and energy-saving transformation system suitable for rail transit subway stations, characterized in that: The environmental control energy-saving transformation system includes the following modules: Data acquisition module, used to obtain the station environment data and system operation data around the equipment; A data processing module, used for processing the station environment data and system operation data to obtain initial operation data; An intelligent control module is used to obtain the initial operation data, and perform data analysis on the initial operation data using an equipment energy-saving model to obtain equipment operation parameters; The energy-saving adjustment module is used to perform energy-saving adjustment on the operating state of the system equipment based on the equipment operating parameters to obtain the target operating state of the equipment.

2. The environmental control and energy-saving transformation system applicable to rail transit subway stations as claimed in claim 1, characterized in that: The data acquisition module includes the following submodules: An acquisition submodule is used to acquire the in-station environment data around the device, wherein the in-station environment data at least includes in-station temperature data, in-station humidity data, light intensity data, and air quality data; Thermistor sensor is used to obtain the change data of resistance value caused by temperature change through the thermistor sensor to obtain the temperature data in the station; Capacitive humidity sensor, used to obtain capacitance value data caused by environmental humidity changes using the capacitive humidity sensor, and obtain humidity data in the station; A photodiode sensor is used to obtain different current data generated by different light intensities through the photodiode sensor to obtain light intensity data; Infrared carbon dioxide sensor is used to obtain the absorption concentration of infrared light of a specific wavelength to obtain air quality data.

3. The environmental control and energy-saving transformation system applicable to rail transit subway stations as claimed in claim 1, characterized in that: The data acquisition module also includes the following submodules: An acquisition submodule is used to acquire system operation data, wherein the station environment data at least includes equipment energy consumption data, equipment operation status data, and passenger flow data; Smart meters are used to obtain current and voltage data from power equipment in rail transit and calculate equipment energy consumption data; A rotary encoder is used to obtain the rotary motion by using the rotary encoder and convert it into electrical signal pulses, calculate the rotation speed according to the number of pulses and time interval, and obtain the equipment operation status data; The infrared light curtain sensor is used to emit and receive infrared light through the infrared light curtain sensor. When someone passes by, the light is blocked to generate a signal change to count the passenger flow and obtain the passenger flow data.

4. The environmental control and energy-saving transformation system applicable to rail transit subway stations as claimed in claim 1, characterized in that: The data processing module includes the following submodules: The outlier removal submodule is used to identify and remove outliers using the 3σ principle to obtain normal operating data; The missing value filling submodule is used to estimate the missing value by linear interpolation, that is, to obtain the filled running data by linear calculation based on the values ​​of the adjacent data points before and after; The multi-sensor data fusion submodule is used to fuse the data of the temperature sensor and the humidity sensor using the weighted average method to obtain fused operation data; The normalization submodule is used to perform data normalization processing on the fused operation data to obtain initial operation data.

5. The environmental control and energy-saving transformation system applicable to rail transit subway stations as claimed in claim 1, characterized in that: The intelligent control module includes the following submodules: A submodule is established to establish an energy-saving model for equipment based on the GA genetic algorithm. Binary coding is used to randomly generate an initial population of equipment operation, and each individual represents a combination of equipment operation parameters. The fitness evaluation submodule is used to calculate the fitness value of each individual according to the initial operation data and the preset objective function, and the fitness value reflects the quality of the operation parameter combination scheme represented by the individual; The genetic operation submodule is used to select a part of excellent individuals from the current population as parents according to the fitness value of the individuals by using the selection operation to breed the next generation of individuals; the selected parent individuals are paired by using the crossover operation, and some genes are exchanged according to a certain crossover probability to generate new offspring individuals; The iterative optimization submodule is used to continuously update the population through multiple genetic operations so that the individuals in the population gradually evolve towards the optimal solution. When the maximum number of iterations is reached, the algorithm stops iterating and outputs the device operating parameters.

6. The environmental control and energy-saving transformation system applicable to rail transit subway stations as claimed in claim 1, characterized in that: The energy-saving adjustment module includes the following submodules: The equipment frequency conversion submodule is used to use frequency conversion technology for the water pumps and fans of the ventilation and air-conditioning system of the subway station. By adjusting the frequency of the water pumps and fans, the system of the subway station can be saved. Line building submodule: used to build the line platform network channel using the spare optical fiber of the line backbone network to achieve remote centralized management and control; The BAS system interface submodule is used to upgrade the BAS system interface.

7. The environmental control and energy-saving transformation system applicable to rail transit subway stations as claimed in claim 1, characterized in that: The equipment frequency conversion submodule includes the following units: Central group control cabinet transformation unit, used to add switches, upgrade PLC hardware, add Fengshui linkage industrial computers to the cabinet, and install and debug system wiring; Refrigeration pump transformation unit, used for refrigeration pump pair, cooling pump inverter cabinet installation, hand operation box or floor cabinet transformation, cabinet strong and weak current wiring, and equipped with cabinet neutral wire; The system wiring unit is used to install and wire the system temperature, pressure, and flow sensors, and to install and wire the electric meters of water pumps, main units, cooling towers, etc.

8. The environmental control and energy-saving transformation system applicable to rail transit subway stations as claimed in claim 1, characterized in that: The device frequency conversion submodule also includes the following units: The first installation unit is used to install the fan frequency conversion cabinet, modify the hand control box and floor cabinet, connect the cabinet power and weak current, and equip the cabinet with neutral wire; The second installation unit is used for installing the wind turbine electric meter and installing and wiring the electric meter data transmission cable; The data collector installation unit is used to install data collectors on both ends of A / B and connect the terminal fan frequency fault meter signal to the data collector; The sensor installation unit is used to install temperature, humidity and CO2 concentration sensors.

9. The environmental control and energy-saving transformation system applicable to rail transit subway stations as claimed in claim 1, characterized in that: The line building submodule includes the following units: Energy-saving model building unit, used to build energy-saving models for environmental control equipment based on load forecasting of actual historical data, high-precision equipment and system performance models, and iterative optimization algorithms; Iterative optimization unit, used to iterate the water system and wind system, and optimize the coupling relationship and mutual influence between the water system and the large and small systems in the station air-conditioning system; A parameter acquisition unit is used to dynamically find the optimal control parameters of the system that minimize the energy consumption of the entire ventilation and air-conditioning system at the current moment through a multi-objective optimization control algorithm; The operation control unit is used to use the analysis results of the subway station energy consumption model as the control basis to realize the linkage operation control of each control system and optimize the system.

10. The environmental control and energy-saving transformation system applicable to rail transit subway stations as claimed in claim 1, characterized in that: The BAS system interface submodule includes the following units: The control interface adds a unit to change the integrated monitoring control interface within the station and add an energy-saving mode to the monitoring page; Add a communication interface unit to monitor and establish a communication interface with the environmental control and energy-saving system through BAS; The BAS program modification unit is used to transmit the sensor data in the station to the environmental control and energy-saving system through the established communication interface, including but not limited to the temperature and humidity sensor data and carbon dioxide sensor data of the platform layer, the temperature and humidity sensor data and carbon dioxide sensor data of the hall layer, and the relevant sensor data between the equipment; BAS program modification unit, used to change the information and control channels of the air conditioning water system related equipment to interact through the newly established communication interface; The BAS program modification unit is used to transmit the start / stop status, frequency feedback, and power frequency conversion status information of the fans with original frequency conversion capability in the station to the environmental control and energy-saving system through the established interface; The BAS program modification unit is used to transmit the start and stop status information of the fans in the station that do not have frequency conversion capabilities to the environmental control and energy-saving system through the established interface; BAS program modification unit, used for BAS, needs to provide fire signal output connection points, with no less than 1 each at the A and B ends.

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