WO2021103480A1 - Method for acquiring user electricity meter load identification data, and hardware device - Google Patents

Abstract

A method for acquiring user electricity meter load identification data, and a hardware device. The method comprises: an uplink communication unit being initialized, and actively establishing a connection with a master station; a downlink communication unit being initialized and executing electricity meter searching; after an electricity meter searching process ends, determining whether an electricity meter address list has been obtained, and if the number of obtained electricity meter addresses is zero, continuing to execute electricity meter searching; if a series of electricity meter addresses have been obtained, determining whether a preset user load identification electricity meter acquisition period has been reached, and if the period has not been reached, continuing waiting and making determinations; and if the acquisition period has been reached, reading load identification data from the electricity meter addresses in the electricity meter address list one by one, recording the electricity meter addresses, the reading time and the load identification data content, performing data processing, and forwarding same to the uplink communication unit until the data is sent to the master station. The device comprises an uplink communication unit, a data processing unit, a downlink communication unit and a system operating unit, is compatible with a current meter reading system, and achieves periodical acquisition of electricity meter load identification data.

Description

Method and hardware equipment for collecting user electric meter load identification data Technical field

The invention relates to a method and hardware equipment for collecting user electricity meter load identification data, and belongs to the technical field of smart grid and smart electricity use.

Background technique

Electricity load identification meter is a new type of smart meter. It not only has the metering function of a traditional meter, but also recognizes the user's electricity consumption behavior through internal intelligent algorithms, and obtains fine-grained load information. It is usually installed in the main incoming line of residential electricity. Place. Its application range is relatively wide, and it can be applied to many scenarios such as smart apartments and smart homes, so the prospects are very promising.

The current concentrator will not read the load identification data of this type of meter and needs to be upgraded; the improved concentrator, due to the large number of connected meters, is also worried that the collection of a large amount of load identification data will reduce the quality of communication services and affect the normal meter reading A series of questions such as tasks.

In order to solve the above problems, the customer hopes to find a method that does not affect the current meter reading system, but can also obtain the load identification data of the electricity meter users.

Summary of the invention

In order to solve the above technical problems, the present invention provides a method and hardware device for collecting user meter load identification data. The load identification meter usually has an RS-485 interface and a power line carrier module interface, both of which can be used as uplink communication channels. Inserting the carrier module can communicate with the concentrator through the power line to complete a series of meter reading functions. Once carrier communication is used, RS-485 is usually idle. The present invention is mainly aimed at using carrier communication, RS-485 is not occupied, or with multiple RS-485 communication interfaces, at least one unoccupied user load identification meter work scenario. The specific technical solutions are as follows:

The method of collecting user load identification meter load identification data includes the following steps:

Step 1: Connect to the master station: power on the system, start the system, initialize the uplink communication unit, and actively establish a connection with the master station;

Step 2: Table search: the downlink communication unit initializes and performs table search;

Step 3: Determine the results of the meter search: After the meter search process is over, determine whether the meter address list has been obtained. If the number of meter addresses obtained is 0, continue to perform the meter search. If a series of meter addresses have been obtained, proceed to step 4;

Step 4: Determine whether the meter collection period is reached: Determine whether the preset user load identification meter collection period is reached, if the period is not reached, continue to wait and judge, if the collection period has been reached, proceed to step 5;

Step 5: Data collection and upload: read the load identification data one by one from the meter address in the meter address list, record the meter address, reading time and load identification data content, perform data processing, forward it to the upstream communication unit, and deliver the data The master station, until all meter address load identification data have been collected, if a meter load identification data is not read, it is determined that the meter address needs to be updated and the meter search process needs to be re-run.

Further, each of the electric meters has a corresponding unique meter address. In step 2, the downlink communication unit search message uses the standard DLT645 and DLT698 protocols, and the electric meter can carry meter address information in the reply message.

The hardware device that implements the above method for collecting user load identification meter load identification data includes an uplink communication unit, a data processing unit, a downlink communication unit, and a system operation unit,

The uplink communication unit establishes a connection with the master station to realize forwarding the data processed by the protocol data unit and other management data to the master station, and at the same time receive the master station data, and forward it to the data processing unit;

The downlink communication unit is connected to a number of electric meters. The downlink communication unit automatically obtains and updates the list of meter addresses, protocols, and serial port rates through meter search, and sends and reads meter load identification data one by one according to the information in the list, and receives The returned load identification message, after receiving the reply message, the table address information and the corresponding load identification data are subjected to protocol conversion, encapsulation processing, and forwarded to the uplink communication unit, which is forwarded to the background master station by the uplink communication unit;

The data processing unit processes the table address information and the corresponding load identification data, realizes the uplink service data protocol conversion, and forwards it to the uplink communication unit, and at the same time realizes the protocol conversion and forwarding of the downlink service data, and the management data collected by the downlink communication unit is also The data processing unit performs unified processing.

Further, the physical interface of the downlink communication unit adopts RS-485, connects the idle RS-485 interface of the electric meter, forms a 485 network with the electric meter, collects the load identification data of the electric meter, RS-482 is the master node, and multiple electric meters are connected as the main node. RS-485 slave node.

Further, the communication protocol of the uplink communication unit and the downlink communication unit adopts DLT645 or DLT698.

The working principle of the present invention is:

The physical interface of the downlink communication unit of the present invention adopts RS-485, connects the idle RS-485 interface of the electric meter, and forms a 485 network with the electric meter, and collects the electric meter load identification data. This method acts as the RS-482 master node, and multiple meters connected to it are all used as RS-485 slave nodes. The communication protocol adopts DLT645 or DLT698. The downlink communication unit of the collection method of the present invention has the meter search function, automatically obtains and updates the meter address, automatically matches the serial port rate, protocol type, etc., and sends the reading meter load identification data message periodically according to the meter address, and the meter is based on the data in the message. The table address information matches its own address. Once it matches, read the data and send a reply message.

The present invention receives the reply message, performs protocol conversion, encapsulation and other processing on the table address information and the corresponding load identification data, and forwards them to the uplink communication unit. It is forwarded to the background master station by the uplink communication unit.

The beneficial effects of the present invention are:

The invention realizes periodical collection of electric meter load identification data, and automatically uploads the meter address and load identification data to the background master station.

The present invention is compatible with the current meter reading system, does not affect the current meter reading business, and reduces the risk caused by the current system upgrade.

Description of the drawings

Figure 1 is a flow chart of the user load identification meter collection method of the present invention.

Figure 2 is a structural diagram of the household load identification meter collection system of the present invention.

Detailed ways

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which merely illustrate the basic structure of the present invention in a schematic manner, so they only show the constitutions related to the present invention.

As shown in Figure 1, the method for collecting user load identification meter load identification data of the present invention includes the following steps:

Step 1: Connect to the master station: power on the system, start the system, initialize the uplink communication unit, and actively establish a connection with the master station;

Step 2: Meter search: the downlink communication unit initializes and executes the meter search. Each meter has a corresponding unique meter address. In step 2, the meter search message of the downlink communication unit adopts the standard DLT645 and DLT698 protocols, and the meter can reply The table address information is carried in the text;

Step 3: Determine the results of the meter search: After the meter search process is over, determine whether the meter address list has been obtained. If the number of meter addresses obtained is 0, continue to perform the meter search. If a series of meter addresses have been obtained, proceed to step 4;

Step 4: Determine whether the meter collection period is reached: Determine whether the preset user load identification meter collection period is reached, if the period is not reached, continue to wait and judge, if the collection period has been reached, proceed to step 5;

Step 5: Data collection and upload: read the load identification data one by one from the meter address in the meter address list, record the meter address, reading time and load identification data content, perform data processing, forward it to the upstream communication unit, and deliver the data The master station, until all meter address load identification data have been collected, if a meter load identification data is not read, it is determined that the meter address needs to be updated and the meter search process needs to be re-run.

The hardware equipment that implements the above method of collecting user load identification meter load identification data includes an uplink communication unit, a data processing unit, a downlink communication unit, and a system operation unit. The functions of each unit are introduced in turn:

The downlink communication unit has a meter search function. The meter search message adopts the standard DLT645 and DLT698 protocols, and the meter can carry the meter address information in the reply message. The downlink communication unit automatically obtains and updates the list of meter address, protocol and serial port rate through the meter search, and sends the meter load identification data one by one according to the information in the list, and receives the returned load identification message. The message format can be The DLT645 and DLT698 protocols supported by the meter are adopted.

The data processing unit processes the table address information and the corresponding load identification data, realizes the uplink service data protocol conversion, and forwards it to the uplink communication unit. At the same time, it realizes the protocol conversion and forwarding of the downlink service data. The collected management data of the present invention is also uniformly processed by the data processing unit.

The uplink communication unit is responsible for establishing a connection with the background master station, and realizes forwarding the data processed by the protocol data unit and other management data to the master station. At the same time, it receives data from the master station and forwards it to the data processing unit. The physical interface of the uplink communication unit uses a 4G module or a network port, but it is not limited to these two.

The system operation unit mainly includes the basic hardware components such as the microprocessor unit, flash storage, LED indicator, and the system software layer that supports the above-mentioned functions.

Those skilled in the art can understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meanings as those commonly understood by those of ordinary skill in the art to which this application belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and unless defined as here, they will not be used in idealized or overly formal meanings. Explanation.

The meaning of "and/or" mentioned in this application refers to the situations where each exists alone or both exist simultaneously.

The meaning of "connection" in this application can be a direct connection between components or an indirect connection between components through other components.

Taking the above-mentioned ideal embodiment according to the present invention as enlightenment, through the above-mentioned description content, relevant workers can make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the content of the description, and the technical scope must be determined according to the scope of the claims.

Claims (5)

1. The method for collecting user electricity meter load identification data is characterized in that it includes the following steps:

   Step 1: Connect to the master station: power on the system, start the system, initialize the uplink communication unit, and actively establish a connection with the master station;

   Step 2: Table search: the downlink communication unit initializes and performs table search;

   Step 3: Determine the results of the meter search: After the meter search process is over, determine whether the meter address list has been obtained. If the number of meter addresses obtained is 0, continue to perform the meter search. If a series of meter addresses have been obtained, proceed to step 4;

   Step 4: Determine whether the meter collection period is reached: Determine whether the preset user load identification meter collection period is reached, if the period is not reached, continue to wait and judge, if the collection period has been reached, proceed to step 5;

   Step 5: Data collection and upload: read the load identification data one by one from the meter address in the meter address list, record the meter address, reading time and load identification data content, perform data processing, forward it to the upstream communication unit, and deliver the data The master station, until all meter address load identification data have been collected, if a meter load identification data is not read, it is determined that the meter address needs to be updated and the meter search process needs to be re-run.
2. The method for collecting user electricity meter load identification data according to claim 1, characterized in that: each said electricity meter has a corresponding unique meter address, and in step 2, the downlink communication unit search message uses standard DLT645 and DLT698 protocols, The electricity meter can carry meter address information in the reply message.
3. The hardware device for collecting user electricity meter load identification data according to any one of the preceding claims is characterized in that it includes an uplink communication unit, a data processing unit, a downlink communication unit, and a system operation unit,

   The uplink communication unit establishes a connection with the master station to realize forwarding the data processed by the protocol data unit and other management data to the master station, and at the same time receive the master station data, and forward it to the data processing unit;

   The downlink communication unit is connected to a number of electric meters. The downlink communication unit automatically obtains and updates the list of meter addresses, protocols, and serial port rates through meter search, and sends and reads meter load identification data one by one according to the information in the list, and receives The returned load identification message, after receiving the reply message, the table address information and the corresponding load identification data are subjected to protocol conversion, encapsulation processing, and forwarded to the uplink communication unit, which is forwarded to the background master station by the uplink communication unit;

   The data processing unit processes the table address information and the corresponding load identification data, realizes the uplink service data protocol conversion, and forwards it to the uplink communication unit, and at the same time realizes the protocol conversion and forwarding of the downlink service data, and the management data collected by the downlink communication unit is also The data processing unit performs unified processing.
4. The hardware device for collecting user electricity meter load identification data according to claim 4, characterized in that: the physical interface of the downlink communication unit adopts RS-485, connects the idle RS-485 interface of the electricity meter, and forms a 485 network with the electricity meter to collect the electricity meter For load identification data, RS-482 serves as the master node, and multiple meters connected to it all serve as RS-485 slave nodes.
5. The hardware device for collecting user meter load identification data according to claim 4, wherein the communication protocol of the uplink communication unit and the downlink communication unit adopts DLT645 or DLT698.

Images