Abstract: A defrosting control method for a multi-split system is provided. A multi-split system comprises an outdoor unit and multiple indoor units. An expansion valve is provided on a connecting pipeline between each of the indoor units and the outdoor unit. When the expansion valve of each activated indoor unit is closed and the degree of opening of the expansion valve of each off-state indoor unit is less than or equal to a maximum set degree of opening, the system satisfies a defrosting requirement, and as a result the method controls the expansion valve of each activated indoor unit to remain closed, thereby resolving the issue of a dramatic temperature drop in a room having an activated indoor unit during defrosting and improving user satisfaction. The degree of opening of the expansion valve of a off-state indoor unit is Off_PLS, and is controlled such that Off_PLS=ALL_HP*Avg_PLS/Off_HP.

Abstract: A defrosting control method for a multi-split system is provided. A multi-split system comprises an outdoor unit and multiple indoor units. An expansion valve is provided on a connecting pipeline between each of the indoor units and the outdoor unit. When the expansion valve of each activated indoor unit is closed and the degree of opening of the expansion valve of each off-state indoor unit is less than or equal to a maximum set degree of opening, the system satisfies a defrosting requirement, and as a result the method controls the expansion valve of each activated indoor unit to remain closed, thereby resolving the issue of a dramatic temperature drop in a room having an activated indoor unit during defrosting and improving user satisfaction. The degree of opening of the expansion valve of a off-state indoor unit is Off_PLS, and is controlled such that Off_PLS=ALL_HP*Avg_PLS/Off_HP.

Abstract: The present disclosure discloses a method and a device for controlling an expansion valve. The method includes: when a first specified number of indoor units are in a non-working state, turning off expansion valves corresponding to all the indoor units in the non-working state; and turning on expansion valves corresponding to a second specified number of indoor units in the non-working state in turn according to a predetermined cycle.

Abstract: The present disclosure provides an instant messaging interaction method, system, server, and storage medium. The method includes: receiving, by a client side, an answer character string corresponding to a particular question input by a user via a first account; sending, by the client side, the answer character string and corresponding user property information to a server; searching, by the server, the particular question and a target answer thereof according to the user property information, and matching and verifying, by the server, the answer character string with the target answer; and when the verification is successful, returning, by the server, a first notice to a client side for displaying, and scoring preset property of the first account based on a preset rule. The instant messaging interaction method, system, and server provided in the present disclosure stimulate the question-and-answer interaction between instant messaging users, which improves the effectiveness of the interaction.

Abstract: The present disclosure provides an instant messaging interaction method, system, server, and storage medium. The method includes: receiving, by a client side, an answer character string corresponding to a particular question input by a user via a first account; sending, by the client side, the answer character string and corresponding user property information to a server; searching, by the server, the particular question and a target answer thereof according to the user property information, and matching and verifying, by the server, the answer character string with the target answer; and when the verification is successful, returning, by the server, a first notice to a client side for displaying, and scoring preset property of the first account based on a preset rule. The instant messaging interaction method, system, and server provided in the present disclosure stimulate the question-and-answer interaction between instant messaging users, which improves the effectiveness of the interaction.