Summary:In this paper, the hospital energy supervision system is taken as the research object, and the intelligent technology is used to build a database and an intelligent energy consumption information management system, so as to realize the real-time and accurate dynamic supervision of the energy utilization status of the hospital. Specifically, the main function of the system construction is to collect, report, summarize and analyze the energy consumption of the hospital, and generate dynamic data and report curves, and use the analyzed data to help the hospital use energy scientifically and achieve the goal of energy saving.
1. Demand analysis and construction goals of hospital energy supervision system.
The objectives of the construction of the energy regulatory system are as follows:
2. System composition and architecture.
As shown in Figure 1, the hospital building energy supervision system consists of a metering device, a data gateway, a data transmission network, a data transfer station, a data server, and management software. The hospital will set up energy consumption related data of hospital energy supervision, third-party building automation, and equipment management system according to its own energy management function division of labor.
1) Communication system software: used to obtain the original data of the metering instrument collected by the data collector or the operation and maintenance personnel of the next-level data center to supervise the operation of the EMS building energy-saving management platform.
3.1. Three-phase electronic smart energy meter.
3.2. Intelligent power monitor.
3.3. Ultrasonic heat and cold meter.
3.4. Energy collector.
The collector is designed to be easy to install and can be mounted into a cabinet or distribution box via a 35mm rail by snapping the collector onto the rail. The collector uses DC power supply, uses a switching power supply, converts 220V AC power to 24V DC power, pay attention to the power supply polarity, incorrect wiring will cause the data to be unable to upload. If multiple wires are inserted into one terminal, make sure to screw the wires together before inserting the terminals. The use of shielded cables as communication lines will help reduce the electromagnetic interference suffered by the communication bus and enhance the stability of communication.
4.1. Debugging of energy consumption metering instruments.
1) Set the baud rate, set it to the same baud rate as the energy collector 9600. (2) Set the modbus address and modbus address in order to clarify the position of the terminal device in the energy collector. After the multimeter, the general voltage is about 5V, if not, the circuit may be virtually connected, detected at the terminal, restored to normal, and then connected to the bus, the voltage in the bus should be about 4V. Here we use the modbuspoll software to send data to the three-phase electronic smart meter to check the data it feeds back to confirm whether the energy meter is working properly. The software is equivalent to a collector, mainly to test whether the energy consumption meter is normal, if it is normal, it will feed some messages to the computer and display some data. (3) Set the parity check bit, set it to even check, and connect the instrument to the energy consumption collector in the strong electric well on the first floor of the surgical building and the negative first floor through the bus.
In this document, the gateway configuration software corresponding to the energy consumption collector is used, which is connected to the switch through the network cable interface, and the energy consumption collector is connected to the switch to set the gateway and add meters.
1) Create a new gateway configuration, select gateway in "New", dl645, and the initial configuration will be generated; (2) Open the profile, select the save location and change the profile name; (3) Save the gateway configuration; (4) Edit the configuration and modify the configuration information; (5) Add the module, edit the instrument configuration, if there is no configuration file, you can find the corresponding model of the instrument in the official gateway configuration file and display the ID of the instrument.
1) Create a new collector configuration, select "Collector", display the initial settings, and select Save. (2) Open the configuration, change the name of the configuration file to make it easier to find, and then edit the configuration to change the global configuration. (3) Set the bus parameters, select the 645 bus protocol standard, set the baud rate, update cycle, bus data bit, bus check bit, bus stop bit. (4) Add meters below the bus, this article is just a meter using the modbus protocol, and generate a configuration file after *.
Enter the configured gateway into the collector through the serial port. Select the COM port in the computer, start the configuration in the "home" interface in the software, and select the protocol used by the gateway in the settings collector, this article uses the modbus protocol, so that you can set up the energy consumption collector.
4.3.1. Energy data analysis and report service.
4.3.2. Comprehensive energy data analysis and reporting services.
This information gives recommendations for building energy efficiency.
5.Acrelems-Med Hospital Energy Management Platform.
Acrelems-MED hospital energy management platform fully combines industry norms such as "Code for Electrical Design of Medical Buildings", "Evaluation Standards for Green Hospital Buildings", "Technical Guidelines for the Construction of Energy Consumption Supervision System for Hospital Buildings" and other industry norms, according to the needs of hospital users and the requirements of the energy management department, collects and analyzes energy, energy consumption and energy efficiency data, monitors power quality, smart electricity consumption related indicators and other energy consumption indicators, and combines it with the national energy policy and energy consumption mode reform. It can assist the logistics management personnel of the hospital to carry out the operation and management of the energy system and equipment, help the hospital management to grasp the energy consumption of the hospital in real time, and provide a good technical platform for the construction of energy information and energy-saving management of the hospital.
Accuray Hospital Energy Management System establishes an integrated energy management system of "monitoring, control and maintenance" based on the cloud platform, which helps the hospital logistics management department understand the energy operation of the hospital, pay attention to fire protection and electrical safety, timely warn abnormal situations, and improve operation and maintenance efficiency from the design of data collection, equipment control, data analysis, abnormal warning, operation and maintenance dispatch, system architecture and comprehensive data services. It integrates 10kV O4kV substation power monitoring system, substation operation and maintenance cloud platform, power distribution room integrated monitoring system, energy consumption management system, intelligent lighting control system, smart fire platform, electrical fire monitoring system, fire equipment power monitoring system, fire door monitoring system, fire emergency lighting and evacuation indication system, charging pile management system, power quality management solution, medical isolation power supply solution,
1) Hospital power monitoring solution.
The power monitoring system is mainly aimed at the opening and closing station and 10 0The 4kV substation is equipped with microcomputer protection devices and multi-functional instruments for the protection and monitoring of the high-voltage circuitThe 4KV outlet line is equipped with a multi-functional metering instrument for measuring and controlling the electrical parameters and energy consumption of the outlet circuit. At the same time, the status of important equipment in the hospital such as diesel generators, reactive power compensation devices, active filter devices, UPS, and isolated power supply systems is monitored.
2) Hospital substation operation and maintenance cloud platform solution.
ACREL-2000E power distribution room integrated monitoring system can realize switchgear operation monitoring, high-voltage switchgear live display, bus and cable temperature measurement monitoring, environmental temperature and humidity monitoring, harmful gas monitoring, security monitoring, and linkage control of lights, fans, dehumidifiers, air conditioning control and other equipment. Realize the detection and equipment control of various data in the power environment, optimize the power environment, avoid the operation failure of power distribution equipment caused by the loss of control of the operating environment, ensure the safety of maintenance personnel, prolong the service life of equipment, and realize the distributed remote management of power distribution power environment.
4) Hospital energy management system solution.
Build the basic framework of the hospital's smart energy management system to monitor each energy consumption link in real time;
Regional energy efficiency ratio: realize the comparison of regional energy consumption within the building unit, and facilitate the assessment of energy consumption;
Energy consumption assessment and management: Analyze the energy consumption per unit area and per capita energy consumption index according to the energy consumption quota standard constraint value, standard value and guide value;
The use of energy consumption data for comprehensive analysis, statistics, printing and query functions, and according to the needs of the energy consumption monitoring and management system, different styles of reports can be selected. Provide a reliable basis for energy consumption operation and management departments;
The hospital is relatively dense, there are many departments, and the electricity consumption for lighting accounts for about 15% of the hospital's electrical energy consumption. Therefore, the rational use of lighting control system, in the case of improving the experience of doctors and patients, the use of natural light lighting to a large extent, through induction control to achieve people to turn on the lights, people to go off the lights or maintain the intensity of lighting, as far as possible to solve the lighting electricity.
The modules of the system in the distribution box mainly include bus power supply, switching driver, IP gateway, coupler, dry contact input module, etc. The modules are mounted using a standard 35mm rail.
Based on modern information technologies such as the Internet of Things, big data, and cloud computing, the smart fire cloud platform connects scattered automatic fire alarm equipment, electrical fire monitoring equipment, smart smoke detectors, smart fire water and other equipment to form a network, and intelligently perceives, identifies and locates the status of these equipment, collects fire information in real time, and conducts data analysis, mining and trend analysis through the cloud platform to help achieve the goals of scientific early warning of fire, grid management, and implementation of multi-responsibility supervision. It realizes the unmanned on-duty smart fire protection, and realizes the "automation", "intelligence" and "systematization" needs of smart fire protection. From fire prevention, to fire alarm, to control linkage, operating in a unified system platform, users, security personnel, and supervision units can intuitively see the operation status of various fire-fighting equipment and sensors in each building through the platform, and can quickly notify the relevant personnel in the event of emergency and non-emergency situations such as hidden dangers and fires in a few seconds.
7) Hospital electrical fire monitoring system solution.
The electrical fire monitoring system of the hospital is set up in the building, and the data is collected and uploaded to the monitoring host of the duty room to realize the early warning of building electrical safety. The sensors set up on site monitor the leakage current and cable temperature of the distribution system circuit, and send out alarm signals in real time when abnormal, focusing on problems such as leakage or cable heating in outpatient buildings, inpatient buildings, and medical technology buildings.
8) Hospital fire equipment power monitoring system solution.
The power monitoring and monitoring system of fire-fighting equipment adopts two fire-fighting buses, and sets up a regional extension to collect the power supply status of fire-fighting equipment in the building, and the regional extension receives the voltage, current information and switching status information of multiple sensors through the two buses, so as to realize real-time monitoring of the power supply working status of fire-fighting equipment.
9) Hospital fire door monitoring system solution.
Hospital personnel mobility is strong, density is high, fire protection is more complex, once a fire occurs, the evacuation indication system is very important. The fire emergency lighting and indication system can be linked with the fire alarm system to provide emergency lighting and evacuation path indication, guide the crowd to quickly find the evacuation exit, and can select the evacuation emergency plan with one click to improve the escape probability of personnel.
11) Hospital active harmonic control system solution.
In order to eliminate the influence of harmonics in the distribution system on the hospital equipment, the scheme is equipped with an ANSINI active filter to filter out the 31st harmonic interference of the power grid 2.
There are electric cars and e-bikes in the hospital parking lot, both of which require charging stations. The charging pile management system collects and monitors the charging pile sites and each charging pile connected to the system through the Internet of Things technology, so as to solve the problem of charging pile use and monitoring of the property and electricity management departments. Electric bicycle charging can be done by coin-operated and code-scanning charging, and electric vehicles support IC card and code-scanning charging. The remote charging pile system can remotely complete the control instructions such as starting charging, forced stop, and unit price setting in real time, and the user can scan the app, WeChat, and Alipay applet to pay, and the system initiates a charging request to control the corresponding charging pile to complete the charging process of the electric vehicle. At the same time, a series of faults such as over-temperature protection of the charger, over-voltage of the input and output of the charger, under-voltage, insulation detection fault, etc., are given early warning; It can be controlled remotely, providing functions such as financial statements and data analysis.
13) Hospital medical isolation power supply solution.
The medical isolation power supply solution of Ankerui Electric Co., Ltd. is developed and designed for the power supply needs of medical places, which can well meet the requirements of power supply safety and reliability of various operating rooms and intensive care units, and meet relevant national standards.
6.Hardware selection list for deployment on relevant platforms.
After the completion of the construction of the system, the system platform is used for data analysis, and through the energy audit, the energy consumption management level, energy efficiency indicators, financial process, comprehensive utilization, and environmental effects of the hospital are verified, tested, diagnosed, consulted, benchmarked and evaluated, which is conducive to the hospital to investigate energy-saving obstacles and energy-cost causes, tap energy-saving potential, put forward rectification measures, and formulate energy-saving plans. Assist the hospital in formulating energy-saving plans, further clarify energy-saving goals, highlight the key points of work, improve energy-saving safeguard measures, and provide guidance and suggestions for the establishment of an energy management system in the hospital in the next step, so as to promote comprehensive energy conservation and consumption reduction in the hospital.
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5] Yao Jie. Design and commissioning of hospital energy supervision system.
About author:Yi Yunheng, male, currently working in Ankerui Electric Co., Ltd., mainly engaged in the research and development and application of hospital energy management system.