CN-116447717-B - Central air conditioning system

CN116447717BCN 116447717 BCN116447717 BCN 116447717BCN-116447717-B

Abstract

The invention discloses a central air conditioning system which comprises an air conditioning communication module, an ammeter communication module, a storage module and a control module, wherein the storage module is used for storing the matching relation between an outdoor unit and an ammeter, the corresponding relation between the running time of the outdoor unit and the normal power consumption range of the outdoor unit, the control module is configured to acquire ammeter data and the running state of the outdoor unit in specific time, calculate the power consumption of the ammeter in specific time and the accumulated running time of the outdoor unit, and judge that the matching relation between the outdoor unit and the ammeter is wrong when the accumulated running time of the outdoor unit does not reach the running time of the outdoor unit and the power consumption of the ammeter matched with the outdoor unit exceeds the normal power consumption upper limit corresponding to the running time of the outdoor unit or when the accumulated running time of the outdoor unit exceeds the running time of the outdoor unit and the power consumption of the ammeter matched with the outdoor unit does not reach the normal power consumption lower limit corresponding to the running time of the outdoor unit. The invention can automatically identify and judge whether the matching relation between the outdoor unit and the ammeter is wrong.

Inventors

XU MINGXUAN
SHENG KAI
HUANG JIANXIONG

Assignees

青岛海信日立空调系统有限公司

Dates

Publication Date: 20260508
Application Date: 20230313

Claims (10)

1. A central air conditioning system comprising: The air conditioner communication module is used for receiving the running state of the outdoor unit; The ammeter communication module is used for receiving ammeter data, and the ammeter is connected with the outdoor unit; characterized by further comprising: The storage module is used for storing the matching relation between the outdoor unit and the ammeter, and the corresponding relation between the running time of the outdoor unit and the normal power consumption range of the outdoor unit; The control module is configured to acquire ammeter data and an outdoor unit operation state in a specific time, calculate the electricity consumption of the ammeter and the accumulated operation time of the outdoor unit in the specific time, and judge that the matching relationship between the outdoor unit and the ammeter is wrong when the accumulated operation time of the outdoor unit does not reach the operation time of the outdoor unit and the electricity consumption of the ammeter matched with the outdoor unit exceeds the upper limit of normal electricity consumption corresponding to the operation time of the outdoor unit or when the accumulated operation time of the outdoor unit exceeds the operation time of the outdoor unit and the electricity consumption of the ammeter matched with the outdoor unit does not reach the lower limit of normal electricity consumption corresponding to the operation time of the outdoor unit.
2. The system of claim 1, wherein the storage module stores an upper limit value of a normal power consumption of the first time for the operation of the outdoor unit and the first time for the operation of the outdoor unit, and a lower limit value of a normal power consumption of the second time for the operation of the outdoor unit, and wherein the control module is configured to determine that the matching relationship between the outdoor unit and the electricity meter is wrong when the cumulative operation time of the outdoor unit does not reach the first time, the power consumption of the electricity meter matched with the outdoor unit exceeds the upper limit value of the normal power consumption of the first time, or the cumulative operation time of the outdoor unit exceeds the second time, the power consumption of the electricity meter matched with the outdoor unit does not reach the lower limit value of the normal power consumption of the second time, and wherein the second time is longer than the first time.
3. The central air-conditioning system according to claim 2, wherein the control module is configured to determine that the matching relationship between the outdoor unit and the electric meter is wrong when the cumulative operation time of the outdoor unit is zero and the electric power consumption of the electric meter matched with the outdoor unit exceeds the normal upper limit of the electric power consumption corresponding to the operation time of the outdoor unit being zero.
4. The system of claim 3, wherein the upper limit of the normal power consumption corresponding to the operation time of the outdoor unit being zero is determined according to the input power of the compressor electric heating belt of the outdoor unit and a specific time.
5. The central air conditioning system according to claim 1, wherein the control module is configured to output a prompt when the matching relationship between the outdoor unit and the electric meter is determined to be incorrect, and the duration of the prompt is a set prompting time.
6. The central air conditioning system according to claim 5, wherein the control module is configured to lengthen the duration of the prompt when the matching relationship between the outdoor unit and the electricity meter is determined to be incorrect again within a set prompting time.
7. The central air conditioning system according to claim 1, characterized in that it comprises: The mark input module is used for marking the outdoor unit and the ammeter which are judged to have the wrong matching relation; the control module is configured to not judge whether the matching relationship between the outdoor unit and the ammeter is wrong or not before modifying the marked matching relationship between the outdoor unit and the ammeter.
8. The central air conditioning system according to claim 1, wherein the air conditioning communication module is configured to receive an operation state of an indoor unit, and the control module is configured to determine, when the operation state of the outdoor unit cannot be obtained, the operation state of the outdoor unit according to the operation state of the indoor unit corresponding to the outdoor unit, determine that the outdoor unit is operated when at least one indoor unit is operated, and determine that the outdoor unit is stopped when all indoor units are stopped.
9. The central air conditioning system according to any of claims 1-8, characterized in that, The storage module is used for storing the corresponding relation between the running time of the outdoor unit and the normal power consumption range of the outdoor unit corresponding to the model information and/or the capability information of the outdoor unit; The control module is used for acquiring model information and/or capability information of the outdoor unit, and judging whether the matching relation between the outdoor unit and the electric meter is wrong according to the relation between the accumulated running time of the outdoor unit and the running time of the outdoor unit, and the corresponding relation between the electric power consumption of the electric meter matched with the outdoor unit and the normal electric power consumption range of the outdoor unit corresponding to the model information and/or the capability information of the outdoor unit.
10. The central air conditioning system according to claim 9, wherein the air conditioning communication module is configured to receive model information and/or capability information of the outdoor unit, or the central air conditioner includes an information input module configured to input model information and/or capability information of the outdoor unit.

Description

Central air conditioning system Technical Field The invention relates to the technical field of central air conditioners, in particular to a central air conditioning system capable of automatically judging whether the matching relation between an outdoor unit of the central air conditioner and an ammeter is correct or not. Background The existing multi-split central air conditioner generally adopts a household charging function, the electric power consumption of an outdoor unit of the multi-split central air conditioner is measured through an electric meter, a household charging system is communicated with the electric meter, electric meter data is received as a basis for counting the electric power consumption of the outdoor unit, and the electric power consumption is distributed to the indoor units according to the electric power consumption of the outdoor unit and the running state of the indoor units, so that household charging is realized. When the individual charging function is used, the matching relation between the air conditioning unit (outdoor unit) and the ammeter for collecting the energy consumption of the air conditioning unit (outdoor unit) is required to be consistent with the actual hardware wiring. In actual engineering installation, because of the numerous outdoor units of the central air conditioning system and the electric meters, the matching of the air conditioning system and the electric meters often has errors, and the reasons of the errors mainly comprise the following three aspects: 1. The matching relation between the air conditioning system and the ammeter is manually input in a household charging information management platform, and the possibility of input errors exists; 2. The electric meters of the air conditioning systems are installed at a certain position in a concentrated mode, and the possibility of wrong connection exists in the communication lines of the electric meters; 3. The addresses of some electric meters are required to be set on site, and the possibility exists that the setting information is inconsistent with the input information. If the matching relationship is inconsistent with the actual hardware connection, the situation that the power consumption is worn on the articles is caused, for example, the outdoor unit a is actually connected with the electric meter a, the outdoor unit B is actually connected with the electric meter B, but in the matching relationship, the outdoor unit a is matched with the electric meter B, and the outdoor unit B is matched with the electric meter a, so that the power consumption of the electric meter a is counted as the power consumption of the outdoor unit B when the power consumption is counted, the power consumption of the electric meter B is counted as the power consumption of the outdoor unit a, and the situation that the power consumption is counted as the error occurs. The problem of the mismatching of the air conditioning system and the electric meter is often hidden, the mismatching is difficult to be perceived in a short time, the reason can be searched only when a user feels that the actual power consumption is inconsistent with the allocated power fee, and the loss which is difficult to be compensated is often caused when the later power allocation error is found. The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art. Disclosure of Invention The invention provides a central air-conditioning system, which solves the technical problem that the existing central air-conditioning system cannot identify whether the matching relation between an outdoor unit and an ammeter is the same as the actual hardware connection relation. In order to achieve the aim of the invention, the invention is realized by adopting the following technical scheme: In some embodiments of the present application, there is provided a central air conditioning system including: The air conditioner communication module is used for receiving the running state of the outdoor unit; The ammeter communication module is used for receiving ammeter data, and the ammeter is connected with the outdoor unit; The storage module is used for storing the matching relation between the outdoor unit and the ammeter, and the corresponding relation between the running time of the outdoor unit and the normal power consumption range of the outdoor unit; The control module is configured to acquire ammeter data and the running state of the outdoor unit in a specific time, and calculate the power consumption of the ammeter and the accumulated running time of the outdoor unit in the specific time; When the accumulated running time of the outdoor unit does not reach the running time of the outdoor unit and the electricity consumption of the ammeter matched with the outdoor unit exceeds