Summary: BrandAutomobile sales stores are usually numerous and widely distributed, and the energy consumption (such as electricity, water, and gas) of a single store is small, but the total is significant. Energy expenses such as electricity and gasoline may account for the total operating costsof15%-30%It has become the third largest expenditure after manpower and rent. With the promotion of the dual carbon policy, enterprises are required to reduce carbon emissions. This articlejustAcrel-5000Building energy consumptionsome4sshopIntroduce the application scheme in the project, which mainly focuses onthatThe group's main storeand40Unify the network of local stores in Yujia and collect energy consumption dataandKPICollect, calculate, and upload indicators for management.

KeywordsChain stores, building energy consumption, energy consumption collection

1. Project Overview:

thatAutomotive Investment Co., LtdYu2012Established in Hangzhou in the year, responsible for the deployment and operational management of the dealer network in China. The stores are located in provinces such as Jiangsu, Shanghai, Zhejiang, Beijing, and Guangdong. Within the countryhave45Home car dealer, mainly focusing on selling Audi, Bentley, Lamborghini, PorscheandBMW/MINI Waiting for luxury brands. The energy consumption management system mainly targets functional areas such as office areas, reception areas, maintenance areas, and photovoltaic power generation for energy metering and management. eyefront45All the stores have been set up, deployed, and delivered.

2. Customer requirements:

（1） Energy control: Previously, each store did not use smart meters, water meters, or flow meters, and could only obtain total usage and fees through monthly electricity bills. Unable to know the energy consumption situation in each region.

（2） KPIIndicator: Customers need to strictly adhere to the energy consumption indicators set by the headquartersofKPImanagement And it needs to be reported monthly.

3. Project difficulty:

Ø Due to the need for real-time access to energy consumption data for each store in the group management, most stores have not been able to open public storesnetIPAnd some energy measuring instruments cannot be connected to the internet, so they need to be connectedpass4GThe method of transmitting energy data.

Ø 4GThe water meter uploads the data to the cloud server, where the backend program performs protocol parsing, converts the data into a standard format, and pushes ittoMQTTIn the server, the client's local server obtains cloud services through the networkdeviceMQTTThe data.

4. Solution:

（1） Energy control: achieved through wired and wireless smart meterselectricity/water/flowquantity/Compressed airqi/Automatic measurement of energy consumption for photovoltaic power generation and other applicationsaccurateMeasurement.

（2） KPIIndicator: IncreaseplusKPIOverview and user report section, monthly, annualdegreeKPICalculate indicators such as energy consumption per unit area, workpiece energy consumption in the paint baking room, recycled water utilization rate, etc.

（3） Chinese English adaptation: All function menus have been adapted to both Chinese and English, and have been verified item by item by the customer.

（4） handmachineAPPViewing Energy Consumption Data: Excluding InternalnetWEBIn addition to the version, it also mentionssupplyAPPService, customers can access it at any timenetWIFIBelow. throughpassAPPQuery the energy consumption data of the store.

5. Networking structure:

ANet-2E4SMGateway collects smart meters（DTSD1352）Flow meter and temperature and humidity sensor data are uploaded to the internal network server through wired means. In addition, some smart meters（ADW300）and4GWater meter, accessiblepass4GUpload wirelessly to the energy management platform.

6. Typical hardware:

ANet-1E2S/1E1S-4Ggateway

Ø Adopting high performancecan32bitARMThe processor,at mostbranchhold2Ten thousand data points

Ø branchhold32Gexternal storage

Ø Support breakpoint resume, data is stored locally after network interruption,at mostbranchhold1Monthly storage

Ø canselect4GUpload module, with oneroad10M/100MEthernet port

Ø embracehaveMODBUS/MQTTWaiting for the agreement

Ø branchholdAESdata encryption

Ø Adopting embeddingformulaLINUXOperating system, metal casing, rail mounted installation

Ø Having both electromagnetic andRong4Level certification

Ø Serial port, network port optocoupler isolation

Ø branchhold-20℃to50℃operating temperature

7. Featured features:

（1） Regional energy metering: Classify customers' main energy consumption into electricity, water, compressed air, gas, etc. according to energy types. Divided by region, it is divided into workshop electricity consumption, office area electricity consumption, exhibition hall and after-sales service area electricity consumption, etc. Divided by sub items into air conditioning electricity, power electricity, lighting electricity, photovoltaic power generation, tap water, recycled water, etc. Meet the basic requirements of customers for energy management based on the on-site situation, and have a high degree of customization.

（2） KPIIndicator: Conduct comparative analysis of energy consumption, achieve data analysis and indicator comparison of unit building area energy consumption, unit building area water consumption, unit energy consumption in sales and service areas, unit energy consumption in administrative areas, unit energy consumption in workshop areas, and unit time energy consumption in workshop areas. Help users save energy and reduce consumption.

（3） User Report: Provides monthly and annual statistics on total energy consumption, ranking of energy consumption in each energy consumption zone, comparison of energy consumption on a month on month basis, pie chart proportion, and other functions. And addplusKPIThe statistics and configuration of parameters clearly demonstrate whether the energy consumption of the store meets the headquarters' standards. At the same time, modify the user report style according to customer needs, and basically change the large text information to the form of charts and tables to more intuitively display the data situation.

（4） Switching between Chinese and English: To ensure free switching between Chinese and English, not only does it meet the menu requirementsandUIThe English switching of functions, all instruments, equipment, and station circuit names have been provided with English input interfaces to ensure that all functions can be displayed in English.

（5） Headquarters platform construction: Build the headquarters platform, which can be used to select any store platform for jumping, and can be filtered by region and brand. At the same time, the energy consumption data of the store platform can be displayedandKPIThe indicator data has also been uploaded to the main platform, where store data can be directly compared on the headquarters platform.

8. Summary:

Acrel-5000 The building energy consumption monitoring system has been successfully applied to the entire systemcountry 40 surplushome4S Store project,Solved the customer's issuechain storesSeveral key challenges faced in energy management. The system passes throughWired combined with wirelessThe networking solution ensures the stable and reliable collection and upload of energy consumption data for all stores, laying a solid foundation for centralized management. More importantly, it has changed the extensive management mode of customers in the pastThrough various meansSmart meters, water meters, flow meters, etcThe collection of meters,Implemented different functional areas such as office areas, exhibition halls, maintenance workshops, paint baking rooms, photovoltaic power generation, as well as various types of electricity, water, compressed air, gas, etcTypes of energyaccurateMeasurement enables customers to clearly grasp the energy consumption details of each region and link,accurateLocate abnormal energy consumption. At the same time, the system automatically calculates and visually presents the key performance indicators specified by the headquarters (such as energy consumption per unit area, energy consumption of painted workshop workpieces, recycling water utilization rate, etc.), improving了KPI Efficiency and accuracy of management. In addition, the headquarters level energy management platform has been established to achieve energy consumption data for all storesandKPI The centralized aggregation of indicators and cross regional and cross brand comparative analysis provide strong support for the group to optimize resource allocation and formulate unified energy-saving strategies; The Chinese English interface and the ability to freely switch data meet the management needs of foreign-funded enterprises, ensuring the system's barrier free application.

In summary，Acrel-5000Building Energy Management SystemforthatGroupConstructed a dataaccurateThe intelligent energy consumption monitoring platform for management empowers customers to achievefrom“Energy consumption modelpaste”to“Fine tubecontrol”、from“Dispersing tubereason”to“Group Statisticsview”The leap in energy management capabilities has provided a core tool for sustained energy conservation, consumption reduction, and improved operational efficiency.