WO2019196461A1

WO2019196461A1 - Data processing method and device for variable refrigerant volume system and variable refrigerant flow system

Info

Publication number: WO2019196461A1
Application number: PCT/CN2018/120647
Authority: WO
Inventors: 杨都; 唐杰; 叶铁英; 王文灿; 黄强; 邓忠文
Original assignee: 珠海格力电器股份有限公司
Priority date: 2018-04-13
Filing date: 2018-12-12
Publication date: 2019-10-17
Also published as: CN108683708A

Abstract

Disclosed in the present invention are a data processing method and device for a variable refrigerant volume system and the variable refrigerant flow system. The method comprises: receiving a state frame sent by a station, the state frame being sent when the state of the station changes; acquiring state information of the station from the state frame; and updating a pre-established data mapping table according to the state information, the data mapping table being used for indicating the state of the station. The present invention solves the technical problem of low communication efficiency caused by spending lots of communication bandwidth resources in transmitting state data of internal and outdoor machines by a conventional variable refrigerant volume system.

Description

Data processing method, device and multi-line system for multi-line system

The present application claims priority to Chinese Patent Application No. 201810333830.4, filed on Apr. 13, 2018, the application of the name of the "multi-line system data processing method, device and multi-line system", the entire contents of which are incorporated by reference. Combined in this application.

Technical field

The present invention relates to the field of multi-line system control, and in particular to a data processing method, apparatus and multi-line system for a multi-line system.

Background technique

Due to the huge system, the multi-line system has a large number of internal and external machines, resulting in a large amount of communication data, low communication efficiency and low real-time performance. In the traditional multi-line system, in order to ensure the synchronization of the internal and external machine status data, a large amount of communication bandwidth resources are required to transmit the status data of the internal and external machines, and the status data is normally the same and belongs to redundant data.

Periodically sending a large amount of redundant data to the communication bus not only occupies bandwidth resources, but also reduces the real-time performance of emergency data transmission, and also increases the power consumption of the communication system, and the efficiency of the entire multi-line communication system is greatly reduced.

In response to the above problems, no effective solution has been proposed yet.

Summary of the invention

The embodiment of the invention provides a data processing method, device and multi-line system for a multi-line system, so as to at least solve the communication efficiency caused by the state data of the internal and external machines transmitted by the traditional multi-line system, which consumes a large amount of communication bandwidth resources. Technical problem.

According to an aspect of the embodiments of the present invention, a data processing method for a multi-line system is provided, comprising: receiving a status frame sent by a station, where the status frame is sent when a status of the station changes; Obtaining state information of the site in a frame; and updating a pre-established data mapping table according to the state information, where the data mapping table is used to indicate a status of the site.

Optionally, the method further comprises: transmitting a first beacon frame to the station, the first beacon frame for maintaining a communication link with the station.

Optionally, the first beacon frame is sent periodically to the station.

Optionally, the method further includes: receiving a data request sent by the station, the data request is used to acquire state data of the data mapping table; reading the data mapping table; and carrying the status data Two beacon frames are sent to the site.

Optionally, the first beacon frame and/or the second beacon frame comprise a frame control region and a frame data region, and the length of the frame data region is variable.

Optionally, before receiving the status frame sent by the station, the method further includes: broadcasting identifier information; receiving an access request sent by the station, where the access request includes a physical address of the site, and the access request is And sending, by the station, the identifier information, establishing a communication network with the station according to the physical address, receiving initial state information sent by the station, establishing the data mapping table, and setting the initial state Information is saved to the data map.

According to another aspect of the present invention, a data processing apparatus for a multi-line system is further provided, comprising: a receiving unit, configured to receive a status frame sent by a station, where the status frame is when the status of the station changes And a sending unit, configured to acquire status information of the station from the status frame, and a processing unit, configured to update a pre-established data mapping table according to the status information, where the data mapping table is used to indicate the The status of the site.

Optionally, the apparatus further includes: a sending unit, configured to send the first beacon frame to the station, where the first beacon frame is used to maintain a communication link with the station.

Optionally, the sending unit is configured to periodically send the first beacon frame to the station.

Optionally, the receiving unit is further configured to receive a data request sent by the station, where the data request is used to acquire state data of the data mapping table, and the processing unit is further configured to read the data. a mapping table, where the sending unit is further configured to send a second beacon frame carrying the status data to the station.

Optionally, the device further includes: a broadcast unit, configured to broadcast the identifier information; the receiving unit is further configured to receive an access request sent by the station, where the access request includes a physical address of the site, where The access request is sent after the site receives the identifier information; the processing unit is further configured to establish a communication network with the site according to the physical address; the receiving unit is further configured to: Receiving initial state information sent by the station; the processing unit is further configured to establish the data mapping table, and save the initial state information into the data mapping table.

According to another aspect of the present invention, a multi-line system is further provided, including: a central coordinator, configured to receive a status frame sent by a station, where the status frame is sent when a status of the station changes; Obtaining status information of the site from the status frame; updating a pre-established data mapping table according to the status information, where the data mapping table is used to indicate a status of the site; and the site is coordinated with the central node And a connection for transmitting the status frame to the central coordinator when a status of the station changes.

In the embodiment of the present invention, the status frame sent by the receiving station is used, and the status frame is sent when the status of the station changes; the status information of the station is obtained from the status frame; and the pre-established data mapping table and data mapping are updated according to the status information. The table is used to indicate the state of the site, by establishing a mapping table for indicating the site state data, and in the case of receiving the state frame, updating the data mapping table, the state frame is sent only when the state of the site changes. It achieves the purpose of reducing redundant data while real-time updating of state data, thereby realizing the technical effect of improving real-time performance, reducing system power consumption, and improving communication efficiency, thereby solving a large amount of communication bandwidth due to the traditional multi-line system. The technical problem of low communication efficiency caused by resources to transmit status data of internal and external machines.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic flow chart of a data processing method of an optional multi-line system according to an embodiment of the present invention;

2 is a schematic flow chart of a data processing method of another optional multi-line system according to an embodiment of the present invention;

3 is a schematic structural diagram of a data processing apparatus of an optional multi-line system according to an embodiment of the present invention;

4 is a block diagram showing an alternative multi-line system in accordance with an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is an embodiment of the invention, but not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order. It is to be understood that the data so used may be interchanged where appropriate, so that the embodiments of the invention described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices.

Example 1

In accordance with an embodiment of the present invention, a method embodiment of a data processing method for a multi-line system is provided, it being noted that the steps illustrated in the flowchart of the figures may be in a computer system such as a set of computer executable instructions The steps shown and described may be performed in a different order than the ones described herein, although the logical order is shown in the flowchart.

1 is a schematic flowchart of a data processing method of a multi-line system according to an embodiment of the present invention. As shown in FIG. 1, the method includes the following steps:

Step S102: Receive a status frame sent by the station.

In the above step S102 of the present application, the status frame is sent when the status of the station changes.

The multi-line system of this embodiment may be composed of a data processing device (such as a central coordinator) and a site of a multi-line system, wherein the central coordinator is served by an external device in the multi-line system; the site includes an internal machine, a line controller, Centralized controllers and other equipment.

Step S104, obtaining status information of the station from the status frame.

Step S106, updating the pre-established data mapping table according to the status information.

In the above step S106 of the present application, the data mapping table is used to indicate the status of the site.

The central coordinator of this embodiment is responsible for establishing the communication network and maintaining the state data. The central coordinator establishes a data mapping table, which is responsible for updating and saving the site state to the data mapping table. The site has its own characteristic state information, and when its own characteristics occur, When changing, the site is responsible for sending the changed status information to the central coordinator.

Through the above steps, a site status data mapping table is established, and when a status frame is received, the data mapping table is updated, and the status frame is sent only when the status of the site changes, and the status data is updated in real time. At the same time, the purpose of reducing redundant data is achieved, thereby realizing the technical effect of improving real-time performance, reducing system power consumption, and improving communication efficiency, thereby solving the problem that the traditional multi-line system consumes a large amount of communication bandwidth resources to transmit internal and external signals. The technical problems caused by the low communication efficiency caused by the data.

Optionally, the data processing method of the multi-line system of this embodiment further includes: sending the first beacon frame to the station, where the first beacon frame is used to maintain a communication link with the station.

Wherein, the first beacon frame is periodically sent to the station.

The first beacon frame in this embodiment is periodically sent by the central coordinator to the station.

Optionally, the data processing method of the multi-line system of the embodiment further includes: receiving a data request sent by the station, the data request is used to obtain state data of the data mapping table; reading the data mapping table; and carrying the second state data The beacon frame is sent to the site.

When the site needs complete state data, it actively requests the central coordinator (that is, the site sends the above data request to the central coordinator to obtain the state data in the data request table), and the central coordinator sends the state data through the second letter. The frame is transmitted instead of the normal status frame. At this time, the status data carried in the data area in the second beacon frame is the status data in the data map of the central coordinator.

The beacon frame (including the first beacon frame and/or the second beacon frame) is mainly composed of a frame control area and a frame data area, the frame data area length of the beacon frame is variable, and the beacon frame communication time is occupied. The beacon cycle time is very short.

Optionally, before receiving the status frame sent by the station, the method further includes: broadcasting the identifier information; receiving an access request sent by the station, where the access request includes a physical address of the site, and the access request is sent after the site receives the identifier information. Establishing a communication network with the site according to the physical address; receiving initial state information sent by the site; establishing a data mapping table, and saving the initial state information to the data mapping table.

The identifier information may include an identifier of the central coordinator and an ID number.

Next, as shown in FIG. 2, the data processing method of the multi-line system of the present embodiment will be described:

Step a, the site joins the network.

Among them, the central coordinator and the site form a communication network according to requirements, and establish a data mapping table.

The central coordinator is operated by an external unit in a multi-line system. The central coordinator is responsible for the establishment of the communication network and the maintenance of the status data. The central coordinator has a status data mapping table that is responsible for updating and saving the site status to the data mapping table. The site is served by internal machines, line controllers, and centralized controllers. The site has its own characteristic status information. When its own characteristics change, the site is responsible for sending the changed status information to the central coordinator.

In step b, the central coordinator sends the general communication frame to the station.

The central coordinator transmits the normal communication frame frame (ie, the first beacon frame described above) without the mapping table information according to the set period, and is used for maintaining the communication link between the central coordinator and the station in the network.

The communication system of this embodiment has a beacon frame for maintaining a communication link between the central coordinator and the station in the network. The communication idle except for the beacon frame is the normal control frame and the normal state frame transmission time.

The beacon frame of this embodiment has the following characteristics:

1. The beacon frame is sent periodically by the central coordinator.

2. The beacon frame is mainly composed of a frame control area and a frame data area.

3. The data area length of the beacon frame is variable, and the beacon frame communication time occupies a short beacon period time.

In step c, the station sends a normal status frame to the central coordinator.

Wherein, when the site characteristic state changes, the normal state frame is sent to the central coordinator, and the central coordinator updates the data mapping table.

In step d, the central coordinator sends a normal control frame to the station.

Among them, the central coordinator can send ordinary control frames to control the action of the station, such as controlling the valve to close.

In step e, the central coordinator sends a communication frame to the station.

Wherein, after the beacon period T, the central coordinator can send the general communication frame to the station again.

In step f, the station sends a normal control frame to the central coordinator.

Wherein, when the site needs complete state data, a normal control frame (ie, the above data request) may be sent to the central coordinator to request state data in the data mapping table.

In step g, the central coordinator sends a special beacon frame to the station.

The central coordinator transmits a special beacon frame (ie, the second beacon frame described above) with data mapping table information.

In step h, the central coordinator sends the communication frame to the station.

Among them, in the next cycle, the central coordinator sends the general communication frame without the mapping table information.

The traditional multi-line system has the problems of poor real-time communication, high power consumption, and low efficiency. The data processing method of the multi-line system in this embodiment realizes real-time update of status data by adopting a communication beacon frame and a data mapping table. At the same time, reduce redundant data, achieve the purpose of improving real-time performance, reducing power consumption, and improving communication efficiency.

On the one hand, the external machine is used as a central coordinator, and a data mapping table is established on the external machine. The data mapping table stores all internal and external machine state data, and when the external machine receives the changed status frame, the data mapping table is updated synchronously; The external machine uses the communication beacon frame to maintain the communication link between the internal and external machines, cancels the periodic redundant state transmission in the regular communication, and increases the available bandwidth of the control frame and the high priority data frame in the communication system; When the internal device or other communication device needs complete status information, the external device sends a request, and the external device sends the data mapping table to the target device through the data area of the beacon frame.

By adopting the method of the embodiment, the communication efficiency of the wireless multi-line communication system can be improved, the power consumption is reduced, the communication real-time performance is improved, the user demand is met, and the running cost is reduced.

Example 2

According to an embodiment of the present invention, an embodiment of a data processing apparatus of a multi-line system is provided. FIG. 3 is a data processing apparatus of a multi-line system according to an embodiment of the present invention. As shown in FIG. 3, the apparatus includes:

The receiving unit 30 is configured to receive a status frame sent by the station, where the status frame is sent when the status of the station changes; the acquiring unit 32 is configured to obtain status information of the station from the status frame; The unit 34 is configured to update a pre-established data mapping table according to the status information, where the data mapping table is used to indicate the status of the site.

In this embodiment, by establishing a mapping table for indicating a site status data, and receiving a status frame, the data mapping table is updated, and the status frame is sent only when the status of the station changes, and the status data is reached. Real-time update, reducing the purpose of redundant data, thereby realizing the technical effect of improving real-time performance, reducing system power consumption, and improving communication efficiency, thereby solving the problem that the traditional multi-line system consumes a large amount of communication bandwidth resources to transmit internal and external machines. The state data caused by the technical problems of lower communication efficiency.

Example 3

According to an embodiment of the present invention, an embodiment of a multi-line system is provided. FIG. 4 is a multi-line system according to an embodiment of the present invention. As shown in FIG. 4, the system includes:

The central coordinator 40 is configured to receive a status frame sent by the station, where the status frame is sent when the status of the station changes; obtain status information of the station from the status frame; and update according to the status information. a pre-established data mapping table, the data mapping table is used to indicate a status of the site; the site 42 is connected to the central coordinator 40, and when the status of the site changes, the A status frame is sent to the central coordinator.

Optionally, the central coordinator 40 is further configured to send the first beacon frame to the site, where the first beacon frame is used to maintain a communication link with the site.

Optionally, the central coordinator 40 is further configured to receive a data request sent by the station, where the data request is used to acquire state data of the data mapping table; read the data mapping table; A second beacon frame of data is sent to the site.

Optionally, the central coordinator 40 is further configured to: broadcast the identification information; receive an access request sent by the site, where the access request includes a physical address of the site, and the access request is received by the site And transmitting the identification information; establishing a communication network with the site according to the physical address; receiving initial state information sent by the site; establishing the data mapping table, and saving the initial state information to In the data mapping table.

The multi-line system of this embodiment has the following features:

1. The status of the station does not need to be sent periodically, but only when it changes, and is sent through the normal status frame.

2. When the site needs complete state data, it actively requests from the central coordinator;

3. When the central coordinator sends the status data, it transmits through the beacon frame instead of the normal status frame. At this time, the status data carried in the data area in the beacon frame is the central coordinator data mapping table data.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

In the above-mentioned embodiments of the present invention, the descriptions of the various embodiments are different, and the parts that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

In the several embodiments provided by the present application, it should be understood that the disclosed technical contents may be implemented in other manners. The device embodiments described above are only schematic. For example, the division of the unit may be a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, unit or module, and may be electrical or otherwise.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like. .

The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

Claims

A data processing method for a multi-line system, comprising:

Receiving a status frame sent by the station, where the status frame is sent when the status of the station changes;

Obtaining status information of the site from the status frame;

Updating a pre-established data mapping table according to the status information, the data mapping table is used to indicate the status of the site.
The method of claim 1 further comprising:

A first beacon frame is sent to the site, the first beacon frame being used to maintain a communication link with the site.
The method of claim 2 wherein the first beacon frame is transmitted periodically to the station.
The method of claim 2, further comprising:

Receiving a data request sent by the site, where the data request is used to acquire state data of the data mapping table;

Reading the data mapping table;

A second beacon frame carrying the status data is sent to the station.
The method of claim 4, wherein the first beacon frame and/or the second beacon frame comprises a frame control region and a frame data region, the length of the frame data region being variable.
The method according to any one of claims 1 to 5, wherein before receiving the status frame sent by the station, the method further comprises:

Broadcast identification information;

Receiving an access request sent by the site, where the access request includes a physical address of the site, where the access request is sent after the site receives the identifier information;

Establishing a communication network with the site according to the physical address;

Receiving initial status information sent by the station;

Establishing the data mapping table and saving the initial state information to the data mapping table.
A data processing apparatus for a multi-line system, comprising:

a receiving unit, configured to receive a status frame sent by the station, where the status frame is sent when the status of the station changes;

An obtaining unit, configured to acquire state information of the site from the status frame;

And a processing unit, configured to update a pre-established data mapping table according to the status information, where the data mapping table is used to indicate a status of the site.
The apparatus according to claim 7, further comprising:

And a sending unit, configured to send the first beacon frame to the station, the first beacon frame being used to maintain a communication link with the station.
The apparatus of claim 8, wherein the transmitting unit is configured to periodically transmit the first beacon frame to the station.
The device according to claim 8, wherein

The receiving unit is further configured to receive a data request sent by the station, where the data request is used to acquire state data of the data mapping table;

The processing unit is further configured to read the data mapping table;

The sending unit is further configured to send a second beacon frame carrying the status data to the station.
The apparatus according to any one of claims 7 to 10, further comprising:

Broadcast unit, set to broadcast identification information;

The receiving unit is further configured to receive an access request sent by the station, where the access request includes a physical address of the site, where the access request is sent after the site receives the identifier information;

The processing unit is further configured to establish a communication network with the station according to the physical address;

The receiving unit is further configured to receive initial state information sent by the station;

The processing unit is further configured to establish the data mapping table and save the initial state information into the data mapping table.
A multi-line system that includes:

a central coordinator, configured to receive a status frame sent by the station, where the status frame is sent when the status of the station changes; obtain status information of the station from the status frame; and update the status according to the status information. An established data mapping table, the data mapping table is used to indicate a status of the site;

The station is coupled to the central coordinator for transmitting the status frame to the central coordinator when a status of the station changes.