The Bluebee gateway is connected to the secondary water supply management platform
1. Application background.
With the acceleration of China's urbanization process and the improvement of people's living standards, high-rise building construction projects have shown a blowout growth. However, there have been long-term irregularities in the design, construction, use and management of the secondary water supply facilities, which have caused a series of problems such as unclear property rights, mixed charges, management negligence, and secondary pollution of water quality, which have attracted great attention from the water supply industry and all walks of life.
In order to solve the above contradictions, a series of secondary supply facilities construction and management policies have been formulated and implemented according to the actual situation, aiming to standardize the construction and transformation of new and old secondary water supply equipment to ensure the safety of residents' water.
As an effective tool for the unified management and monitoring of secondary supply equipment in various regions, the secondary supply equipment management platform plays a key role in realizing standardized operation and maintenance management. Taking a secondary supply transformation project in Wenzhou as an example, the construction party followed the relevant policy requirements and introduced the edge computing gateway LF220 developed by Bluebee Internet of Things, which successfully connected to the secondary supply equipment management platform and met the policy standards for the construction and transformation of the secondary supply. Thanks to the ease of use and flexibility of the Bluebee gateway LF220, the project significantly shortened the construction period during the docking and commissioning stage, which was well received by the technical team of the construction party and the platform management team.
2. Requirements for the content of the data upload agreement on the secondary water supply management platform.
The management platform provides the MQTT broker and assigns the server address, port, username and password for MQTT connection, through which the device or system connects to the broker.
Release Topic: refers to the topic in which the device publishes upstream data to the platform.
Subscription topic: refers to the topic that the device subscribes to when it receives downstream data.
Subject format: topic water division number, equipment manufacturer number, clientid system function code (customer-defined).
Water Division Number: That is, the abbreviation of the Water Division, such as Wenzhou tap water: wenzhou.
Equipment manufacturer number: distributed by the two platform manufacturers, each manufacturer is unique.
ClientID: 8 characters, device manufacturer number + 4 custom characters, users need to ensure that the clientID assigned to each hardware device is not duplicated.
Function code: monitordata, data upload; writedata, data control.
The time format is yyyy-mm-dd hh:mm:ss, and ymdhms represent the year, month, day, hour, minute, and second, for example, 2022-9-28 08:08:01.
The message body is in UTF-8 encoded JSON text format.
Example:
At present, the platform is set to realize the downward control operation through the topic topic, and the value of one parameter variable is set at a time for the write operation.
Example:
The following table describes the abbreviations corresponding to the field register addresses of the terminal device acquisition and the corresponding requirements for the uploaded name. For example, the low area PLC heartbeat indication name is: PLC1 D01; The central PLC heartbeat indication name is: PLC2 D01. There is a data cabinet on site according to PLC0, and those without data cabinets (environmental data and other data cabinet point tables) are uniformly uploaded in the low area. The PLC transmission protocol adopts the S7 protocol or the Modbus TCP protocol, and the float type is accurate to the last two decimal places, and the register address is as follows
.Too much content is omitted here).
Three: apply the Bluebee gateway solution business architecture.
According to the plan and business structure, the on-site construction and transformation technical team and the Bluebee team worked together to complete the docking of each secondary water supply equipment in the region with the secondary supply management platform according to the following implementation steps.
Fourth, the advantages of the program.
In the whole process of the project, the Bluebee team and the construction technical team worked together to quickly realize the docking and uploading of data, which greatly advanced the overall construction period, saved the construction cost, and won the unanimous praise of the platform and users
Edge Computing Script Docking LF220 Edge Computing Gateway has a script function, which can analyze and sort out the collected data, summarize key data reporting, and freely change the reporting format according to the protocol requirements of the platform, effectively reducing the time for matching data protocols, and can meet the data docking of almost all customized protocols;
Integrating a variety of PLCs and industrial protocols, the LF220 edge computing gateway has a variety of interfaces such as RS485, RS232 and RJ45 network ports in the southbound, and integrates a variety of mainstream PLC and industrial equipment protocols, which can be compatible with most of the industrial equipment on site, and can be plug and play, which greatly reduces the difficulty and workload of construction and transformation of field equipment collection.
When the on-site network is abnormal, the key data can be stored locally as required, and then reissued according to the requirements of the platform when the network is restored, which greatly ensures the integrity of the data and is recognized by users.
Remote maintenance of equipmentThrough the LF220 edge computing gateway developed by Bluebee Internet of Things, users can realize remote program update and debugging operations of PLC and other controllers in various equipment on site. This function solves many problems in the after-sales maintenance of equipment to a large extent, especially for equipment manufacturers, greatly improves service efficiency and response speed, effectively reduces operation and maintenance costs, and also enhances user experience.
The high-security LF220 edge computing gateway has the protocol script editing function, which can realize one-way and two-way encryption authentication (SSL TLS), effectively ensure the security of data, and meet the security requirements of the platform protocol.
5. Some edge computing script examples are displayed.
The following is a partial example of the script configuration that the Bluebee team assists users in the process of docking with the Tianjin heating emergency and energy consumption monitoring and management platform, and it is easy to realize the protocol docking