Matching method and system for indoor unit and outdoor unit of unit

Abstract

The method comprises the steps that the indoor unit and the outdoor unit send serial numbers of the indoor unit and the outdoor unit to each other; the indoor unit and the outdoor unit find whether parameters corresponding to the received serial numbers exist or not according to the received serial numbers and differential parameters stored in the indoor unit, if yes, matching is carried out, and if not, a parameter non-existence mark is returned, and comparison is carried out according to the differential parameters of the indoor unit and matching parameters of the same series to form a parameter difference table; judging an interaction type according to a parameter data volume of the parameter difference table, and performing data transmission to the opposite side according to the parameter difference table or a complete parameter mode according to the interaction type; after receiving the data transmitted by the opposite side, the indoor unit and the outdoor unit perform data analysis according to the interaction type, and match of the indoor unit and the outdoor unit is realized by synchronously combining the same-series matching parameters with the same serial number in the differential parameters of the indoor unit and the outdoor unit. Different series matching parameters are read by increasing serial number interaction between the indoor unit and the outdoor unit, and mixed optimal operation of different outdoor units and different indoor units is achieved.

Description

Technical Field

[0001] This invention relates to the technical field of unit matching, and more specifically, to a method and system for matching indoor and outdoor units of a unit. Background Technology

[0002] For AHU residential products, due to different application scenarios, there are various series of products such as ultra-low temperature series, conventional series, and economy series. Each major series is further divided into various sub-series, such as different energy efficiency levels.

[0003] The indoor and outdoor units of residential units can be controlled via communication or via 24V signal. Users can purchase the indoor unit or the outdoor unit separately. Therefore, unlike the traditional method of shipping indoor and outdoor units separately, this type of product is more likely to result in mixed combinations of indoor and outdoor units from different series.

[0004] Although the indoor and outdoor units are shipped in pairs at the factory, after the customer receives the product, different series of outdoor units may need to be mixed with different series of indoor units. However, the casing configurations of different series are different, and mixing them will affect the performance, reliability, comfort, etc. of the unit. Therefore, customers are usually not allowed to mix them.

[0005] When different series of indoor and outdoor units are mixed and matched, the ideal situation is that all possible mixed indoor and outdoor unit series have undergone sufficient matching tests before leaving the factory, and both sides have stored all series of differential parameters.

[0006] However, in reality, the development times for different series and capacities of air conditioners are inconsistent, with a clear chronological order and potentially long intervals. This results in the existence of different series of products launched at different times in the market. For customers, the indoor and outdoor units from different series in their inventory may not actually be properly matched. For example, the indoor and outdoor units of Series 1 were developed first. At the time of manufacture, the indoor units only stored the differentiated parameters required for the Series 1 outdoor units, and the outdoor units only stored the differentiated parameters required for the Series 1 indoor units. Then, Series 2 was launched. At this point, the factory would test the mixing of Series 1 and Series 2 indoor and outdoor units. This means the indoor units stored the differentiated parameters required for both Series 1 and Series 2 outdoor units, and the outdoor units also stored the differentiated parameters required for both Series 1 and Series 2 indoor units. Mixing newly sold units works fine, but if the earliest shipped units, which only stored the Series 1 differentiated parameters, are mixed with the new units, incompatibility issues will occur.

[0007] As the number of generator sets continues to increase, the problem of mixing old and new units will become more and more serious. This leads to the situation described above, where customer needs cannot be met, and a solution is urgently needed. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a method for matching indoor and outdoor units, resolving performance and reliability issues arising from mixing different outdoor and indoor units, and meeting customer needs for matching different series of indoor and outdoor units.

[0009] The present invention adopts the following technical solution.

[0010] A method for matching indoor and outdoor units of a generator set includes the following steps: The unit includes indoor and outdoor units. The stored parameters of each machine in the unit are divided into regular operating parameters, outdoor unit differentiated parameters, indoor unit differentiated parameters, and parameters of matching the same series. The parameters of outdoor and indoor units are stored in an optimized manner. After the unit is powered on, the indoor and outdoor units send their serial numbers to each other through communication. The internal and external units search for the existence of parameters corresponding to the received serial number based on the received serial number and their own stored differential parameters. If the parameters exist, they are matched; otherwise, a parameter non-existence flag is returned. When the indoor and outdoor units receive a parameter non-existence flag, they will form a parameter difference table by comparing their own differentiated parameters with those of the same series. The interaction type is determined based on the amount of parameter data in the parameter difference table. The internal and external machines then choose to transmit data to each other according to the parameter difference table or the complete parameters, depending on the interaction type. After receiving data transmitted from the other party, the internal and external units parse the data according to the interaction type and simultaneously combine the matching parameters of the same series number in their own differentiated parameters to achieve the matching of internal and external units.

[0011] Preferably, the optimized storage of the external machine parameters specifically includes: Let the serial number of the current outdoor unit be x, and n be the maximum serial number of the indoor unit that can be matched with this outdoor unit; The outdoor unit differentiation parameters include the outdoor unit operating parameters of the current series outdoor unit paired with different series indoor units, totaling n, including the outdoor unit operating parameters of series x paired with indoor units of series 1 to n; The differentiated parameters of the indoor unit include the indoor unit operating parameters of different series of indoor units paired with the current series of outdoor units, including the indoor unit operating parameters of series 1 to x-1 paired with series x outdoor units; The parameters for matching units in the same series include the operating parameters of the indoor unit when matching indoor and outdoor units in the same series.

[0012] Preferably, the optimized storage of the internal machine parameters specifically includes: Let y be the serial number of the current indoor unit, and m be the maximum serial number of the outdoor unit that can be matched. The outdoor unit differentiation parameters include the indoor unit operating parameters of the current series indoor unit paired with different series outdoor units, totaling m parameters, including the outdoor unit operating parameters of the indoor unit with series number y paired with outdoor units with series numbers 1 to m; The indoor unit differentiation parameters store the outdoor unit operating parameters of different series of outdoor units paired with the current series of indoor units, and store the pairing parameters of indoor units from series 1 to y-1 with outdoor units from series y. The parameters for matching units in the same series include the operating parameters of the outdoor units that are matched with other units in the same series.

[0013] Preferably, the outdoor unit searches for the existence of parameters corresponding to the received serial number based on the received serial number and its stored differential parameters, specifically including: The outdoor unit searches its own outdoor unit's differentiated parameter area for a parameter corresponding to the indoor unit's serial number based on the serial number sent by the indoor unit. If the parameter exists, it sends an indoor unit parameter existence flag to the indoor unit; otherwise, it sends an indoor unit parameter non-existence flag to the indoor unit.

[0014] Preferably, the internal unit searches for the existence of parameters corresponding to the received serial number based on the received serial number and its stored differential parameters, specifically including: The indoor unit searches its own differentiated parameter area for a parameter corresponding to the outdoor unit's serial number based on the serial number sent by the outdoor unit. If the parameter exists, the indoor unit sends an outdoor unit parameter existence flag to the outdoor unit; otherwise, it sends an outdoor unit parameter non-existence flag to the outdoor unit.

[0015] Preferably, when the indoor and outdoor units receive a parameter without a flag, they compare their own differentiated parameters with those of the same series to form a parameter difference table, specifically including: When the outdoor unit with serial number x receives a flag indicating that the outdoor unit parameter does not exist from the indoor unit with serial number y, it compares the corresponding matching parameters stored in its own indoor unit differential parameter area with the matching parameters of the corresponding indoor unit serial number in the matching parameters of the same series to form a parameter difference table. The parameter difference table includes parameter address and parameter data. Among them, the corresponding matching parameters stored in the indoor unit differential parameter area are the matching parameters of the indoor unit with series number y and the outdoor unit with series number x. In the matching parameters of the same series, the matching parameters of the corresponding indoor unit series number are the matching parameters of the indoor unit with series number y and the outdoor unit with series number y.

[0016] Preferably, when the indoor and outdoor units receive a parameter without a flag, they compare their own differentiated parameters with those of the same series to form a parameter difference table, specifically including: When the indoor unit with serial number y receives a "parameter not found" flag from the outdoor unit with serial number x, it will compare the corresponding matching parameters stored in its own outdoor unit differential parameter area with the matching parameters of the corresponding outdoor unit serial number in the matching parameters of the same series to form a parameter difference table. The parameter difference table includes parameter address and parameter data. Among them, the corresponding matching parameters stored in the outdoor unit differential parameter area are the matching parameters of the outdoor unit with series number x and the indoor unit with series number y. In the matching parameters of the same series, the matching parameters of the corresponding outdoor unit series number are the matching parameters of the outdoor unit with series number x and the indoor unit with series number x.

[0017] Preferably, the step of determining the interaction type based on the amount of parameter data in the parameter difference table is as follows: The parameter difference table includes parameter addresses and parameter data. If the number of differing parameters exceeds half of the total data, the interaction type is 1; if the number of differing parameters does not exceed half of the total data, the interaction type is 0. Preferably, the total amount of data is the complete operating parameters of the indoor and outdoor units that need to be matched; For an outdoor unit with serial number x, when it needs to be paired with an indoor unit with serial number y, the complete operating parameters of the indoor and outdoor units that need to be paired are: the complete operating parameters of the outdoor unit with serial number x and the indoor unit with serial number y stored in the indoor unit with serial number y. For an indoor unit with serial number y, when the outdoor unit needs to be paired with an outdoor unit with serial number x, the complete operating parameters of the indoor and outdoor units that need to be paired are: the complete operating parameters of the indoor unit with serial number y and the outdoor unit with serial number x stored in the outdoor unit with serial number x.

[0018] Preferably, the internal and external units select either a parameter difference table or complete parameters to transmit data to each other based on the interaction type, as follows: When the interaction type is 0, the internal or external machine will transmit the parameter difference table to the other party; When the interaction type is 1, the internal or external unit will transmit the complete operating parameters to the other party.

[0019] This invention also proposes a unit indoor and outdoor unit matching system for implementing the aforementioned unit indoor and outdoor unit matching method, the system comprising: The parameter storage module is used to store the parameters of the unit, which includes indoor and outdoor units. The stored parameters of each machine in the unit are divided into regular operating parameters, outdoor unit differentiated parameters, indoor unit differentiated parameters, and parameters of matching the same series. The parameters of outdoor and indoor units are stored in an optimized manner. The transmission module is used to send its own serial number and data to the other party through communication after the unit is powered on, and to return the parameter corresponding to the received serial number or the parameter not found flag. Among them, the internal and external units search for the existence of parameters corresponding to the received serial number based on the received serial number and their own stored differential parameters. If they exist, they are matched; if they do not exist, a parameter non-existence flag is returned. When the indoor and outdoor units receive a parameter non-existence flag, they will form a parameter difference table by comparing their own differentiated parameters with those of the same series. The interaction type determination module is used to determine the interaction type based on the amount of parameter data in the parameter difference table. The internal and external machines then select to transmit data to each other according to the parameter difference table or the complete parameters based on the interaction type. The matching module is used to parse the data after receiving the data transmitted by the other party from the internal and external units, and synchronously combine the same series matching parameters with the same serial number in its own differentiated parameters, update and store them one by one according to the parameter address, and run according to the updated data.

[0020] The beneficial effects of this invention are that, compared with the prior art, this invention effectively solves the performance and reliability problems caused by mixing different series of indoor and outdoor units by increasing the interaction of serial numbers between the indoor and outdoor units and then reading the optimal parameters for operation of different series. This allows customers a certain degree of freedom in matching units while meeting their needs for reducing the storage of different series of units, and achieves optimized operation of mixed indoor and outdoor units of different series. This invention includes at least the following beneficial effects: 1. By combining different types of parameters, the space required for data storage can be reduced; 2. Through the interaction of serial numbers, the system can automatically find and confirm the matching relationship between internal and external units; 3. Based on the confirmation of the matching relationship, a parameter difference table is generated through data comparison, providing another way for data transmission; 4. By comparing the data volume of the data difference table with that of the complete data, the parameter scheme with the smaller data volume is selected for transmission to improve the interaction speed. Attached Figure Description

[0021] Figure 1 This is a schematic diagram illustrating the configuration of the indoor and outdoor units in this invention. Figure 2 This is a schematic diagram illustrating the division of unit operating parameters in this invention; Figure 3 This is a schematic diagram of the parameters stored in the external machine in this invention; Figure 4 This is a schematic diagram of the differential parameters between the internal and external units in this invention; Figure 5 This is a schematic diagram of the parameter difference table in this invention; Figure 6 This is an overall flowchart of the method for matching indoor and outdoor units in this invention; Figure 7 This is a structural diagram of the indoor and outdoor unit combination system in this invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. The embodiments described in this application are merely some embodiments of this invention, and not all embodiments. Based on the spirit of this invention, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of this invention.

[0023] Example 1 This invention proposes a method for matching indoor and outdoor units of a generator set, which is applicable to matching indoor and outdoor units of a generator set. Figure 1 As shown, the unit consists of indoor and outdoor units, each with a corresponding serial number field. The serial numbers can be further subdivided into major series such as ultra-low temperature, standard, and economy, as well as smaller series based on different energy efficiency levels. The serial numbers for the outdoor and indoor units are independent; each outdoor unit and each indoor unit has its own unique serial number.

[0024] There is no limit to the size of the serial number. However, as the number of series increases, the storage space of the internal and external unit chips is limited, so the number of operating parameters stored in each internal and external unit is limited. This results in a limited number of models that can be mixed and matched for each internal and external unit. The specific matching relationships are determined by the designers.

[0025] Reference for the matching relationship between different series of units Figure 1 As shown in the diagram, indoor and outdoor units of the same series can be directly paired. However, when indoor and outdoor units from different series are mixed, the required operating parameters differ. These differences are mainly due to factors such as casing configuration, stress, noise, and performance requirements. Furthermore, due to limitations in chip storage space, the allowed size of the differentiated parameter data is also limited, for example, 20 bytes. Which parameters are classified as differentiated parameters is determined by designers through a comprehensive evaluation based on factors such as casing configuration, stress, noise, and performance requirements.

[0026] The division of unit operating parameters is as follows: Figure 2 As shown, the differentiated parameter area is divided into T smaller areas according to the maximum number T of compatible models. Each smaller area contains X bytes of parameter data. The first byte of each smaller area (or 2 bytes, depending on actual needs) is used to store the series number that the area is compatible with, and the remaining bytes are used to store the differentiated operating parameters.

[0027] The serial number for each sub-region is not fixed and can be freely defined according to the allowed model series, without any order distinction. Furthermore, not every sub-region needs to be fully utilized; any unused sub-regions can be filled with the data 0, which is considered invalid by default.

[0028] To address the issue of mixing indoor and outdoor units from different series due to the increasing number of generator set series, it is necessary to optimize the storage and interaction methods of the differentiated parameters of the generator sets. This would allow for the pairing of indoor and outdoor units from different series, and also enable the pairing of indoor and outdoor units from new series with those from older series. Therefore, this invention proposes a method for pairing indoor and outdoor units of generator sets, such as... Figure 6 As shown, the method includes the following steps: Step 1: The unit includes indoor and outdoor units. The stored parameters of each machine in the unit are divided into regular operating parameters, outdoor unit differentiated parameters, indoor unit differentiated parameters, and parameters of the same series. The parameters of the outdoor and indoor units are optimized and stored. like Figure 2 As shown, the parameters stored in the indoor or outdoor unit include regular operating parameters, outdoor unit differentiated parameters, indoor unit differentiated parameters, and parameters for matching the same series. As mentioned earlier, when developing a new series of units, compatibility with all previously developed series is taken into account. This means that when a new series is launched, the internal and external units already store the differentiated parameters required for their respective mixed-use configurations. Therefore, if the internal and external units also store each other's differentiated parameters, the mixed-use issue can be resolved.

[0029] For example: When developing the indoor and outdoor units of Series 1, both the indoor and outdoor units stored the differentiated parameters for both Series 1 indoor and outdoor units respectively, and were shipped as Batch 1. When developing the indoor and outdoor units of Series 2, both the indoor and outdoor units stored the differentiated parameters for both Series 1 and Series 2 indoor units and Series 1 and Series 2 outdoor units respectively, and were shipped as Batch 2. When Batch 1 indoor units and Batch 2 outdoor units appear on the market, because the Batch 2 outdoor unit additionally stores the differentiated parameters required for pairing the Batch 1 indoor unit with the Batch 2 outdoor unit, as long as the Batch 2 outdoor unit communicates these parameters to the Batch 1 indoor unit, the Batch 1 indoor unit can operate according to the new parameters and can be normally paired with the Batch 2 outdoor unit.

[0030] The optimized parameter storage partitioning is as follows: Figure 3 As shown. According to Figure 3 This storage method requires the unit to store complete parameters for all series of outdoor units and different series of indoor units, and simultaneously also requires storing complete parameters for all series of indoor units and different series of outdoor units. This method consumes a lot of storage chip space.

[0031] Furthermore, in order to address the aforementioned issue of high storage space consumption, this application optimizes the chip storage parameters.

[0032] like Figure 4 As shown, taking the outdoor unit as an example, in addition to the regular operating parameters, it is divided into three parts: outdoor unit differentiated parameters, indoor unit differentiated parameters, and parameters for matching the same series.

[0033] For outdoor units, the optimized storage of outdoor unit parameters specifically includes: Let the serial number of the current outdoor unit be x, and n be the maximum serial number of the indoor unit that can be matched with this outdoor unit; it can be understood that n increases as the product series continues to expand.

[0034] The outdoor unit differentiation parameters include the outdoor unit operating parameters of the current series outdoor unit paired with different series indoor units, totaling n, including the outdoor unit operating parameters of series x paired with indoor units of series 1 to n; The differentiated parameters of the indoor unit include the indoor unit operating parameters of different series indoor units paired with the current series outdoor unit, including the indoor unit operating parameters of series 1 to x-1 paired with series x outdoor units. Subsequent parameters can be obtained through interaction with the indoor unit. The matching parameters for the same series include the operating parameters of the indoor units when the indoor and outdoor units of the same series are matched, that is, the operating parameters of the indoor units when the outdoor unit with series number x is matched with the indoor unit with series number x. This part of the data is only used to form the matching parameter difference table that needs to be transmitted.

[0035] Furthermore, for the indoor unit, the optimized storage of indoor unit parameters specifically includes: Let y be the serial number of the current indoor unit, and m be the maximum serial number of the outdoor unit that can be matched. The outdoor unit differentiation parameters include the indoor unit operating parameters of the current series indoor unit paired with different series outdoor units, totaling m parameters, including the outdoor unit operating parameters of the indoor unit with series number y paired with outdoor units with series numbers 1 to m; The indoor unit differentiation parameters store the outdoor unit operating parameters of different series of outdoor units paired with the current series of indoor units, and store the pairing parameters of indoor units from series 1 to y-1 with outdoor units from series y. The parameters for matching units in the same series include the operating parameters of the outdoor units that are matched with other units in the same series.

[0036] The aforementioned storage parameters are obtained from the cloud server during in-plant testing. During in-plant testing, the outdoor unit first uploads its own serial number to the cloud to request the relevant parameters corresponding to that serial number. The cloud then returns the parameters to the outdoor unit for storage via the test fixture.

[0037] As a preferred implementation method, Step 2: After the unit is powered on, the indoor and outdoor units send their serial numbers to each other through communication. Step 3: The internal and external units search for the existence of parameters corresponding to the received serial number based on the received serial number and their own stored differential parameters. If the parameters exist, they are matched; otherwise, a parameter non-existence flag is returned. Specifically, the outdoor unit searches for parameters corresponding to the received serial number based on the received serial number and its stored differential parameters. This includes: The outdoor unit searches its own outdoor unit's differentiated parameter area for a parameter corresponding to the indoor unit's serial number based on the serial number sent by the indoor unit. If the parameter exists, it sends an indoor unit parameter existence flag to the indoor unit; otherwise, it sends an indoor unit parameter non-existence flag to the indoor unit.

[0038] Furthermore, the internal unit searches for the existence of parameters corresponding to the received serial number based on the received serial number and its own stored differentiated parameters. Specifically, this includes: The indoor unit searches its own differentiated parameter area for a parameter corresponding to the outdoor unit's serial number based on the serial number sent by the outdoor unit. If the parameter exists, the indoor unit sends an outdoor unit parameter existence flag to the outdoor unit; otherwise, it sends an outdoor unit parameter non-existence flag to the outdoor unit.

[0039] Step 4: When the indoor and outdoor units receive a parameter non-existence flag, they compare their own differentiated parameters with the parameters of the same series to form a parameter difference table; like Figure 5 As shown, when the outdoor unit receives a parameter non-existent flag, the process of generating a parameter difference table is as follows: When the outdoor unit with serial number x receives a flag indicating that the outdoor unit parameter does not exist from the indoor unit with serial number y, it compares the corresponding matching parameters stored in its own indoor unit differential parameter area with the matching parameters of the corresponding indoor unit serial number in the matching parameters of the same series to form a parameter difference table. The parameter difference table includes parameter address and parameter data. Among them, the corresponding matching parameters stored in the indoor unit differential parameter area are the matching parameters of the indoor unit with series number y and the outdoor unit with series number x. In the matching parameters of the same series, the matching parameters of the corresponding indoor unit series number are the matching parameters of the indoor unit with series number y and the outdoor unit with series number y.

[0040] Furthermore, when the indoor unit receives a parameter non-existence flag, the process of generating a parameter difference table is as follows: When the indoor unit with serial number y receives a "parameter not found" flag from the outdoor unit with serial number x, it will compare the corresponding matching parameters stored in its own outdoor unit differential parameter area with the matching parameters of the corresponding outdoor unit serial number in the matching parameters of the same series to form a parameter difference table. The parameter difference table includes parameter address and parameter data. Among them, the corresponding matching parameters stored in the outdoor unit differential parameter area are the matching parameters of the outdoor unit with series number x and the indoor unit with series number y. In the matching parameters of the same series, the matching parameters of the corresponding outdoor unit series number are the matching parameters of the outdoor unit with series number x and the indoor unit with series number x.

[0041] Step 5: Determine the interaction type based on the amount of parameter data in the parameter difference table. The internal and external machines then select to transmit data to each other according to the parameter difference table or the complete parameters, depending on the interaction type. Specifically, the parameter difference table includes parameter addresses and parameter data. The parameter address refers to the address corresponding to each difference parameter. For example, if there are X parameter data in the parameter difference table, then the parameter addresses are 1 to X.

[0042] The methods for determining the interaction type are as follows: If the number of differing parameters exceeds half of the total data volume of complete parameters, the interaction type is 1; if the number of differing parameters does not exceed half of the total data volume, the interaction type is 0.

[0043] The total amount of complete parameter data refers to the complete operating parameters of the indoor and outdoor units that need to be matched. Specifically, for an outdoor unit with serial number x, when the outdoor unit needs to be paired with an indoor unit with serial number y, the complete operating parameters of the indoor and outdoor units that need to be paired are: the complete operating parameters of the outdoor unit with serial number x and the indoor unit with serial number y stored in the indoor unit with serial number y. For an indoor unit with serial number y, when the outdoor unit needs to be paired with an outdoor unit with serial number x, the complete operating parameters of the indoor and outdoor units that need to be paired are: the complete operating parameters of the indoor unit with serial number y and the outdoor unit with serial number x stored in the outdoor unit with serial number x.

[0044] Furthermore, depending on the interaction type, the internal and external units select either to transmit data to each other using a parameter difference table or complete parameters, as detailed below: When the interaction type is 0, the internal or external machine will transmit the parameter difference table to the other party; When the interaction type is 1, the internal or external machine will transmit the complete parameters to the other party.

[0045] like Figure 5 As shown, the choice between the two interaction types is determined by the length of the data to be interacted with. For example, if there are 100 complete data items, and the parameter difference table only has 10 data items, then the interaction type is 0. If the parameter difference table has 60 difference data items, then the data to be transmitted will reach 120 items. Therefore, interaction type 1 is preferred.

[0046] Step 6: After receiving the data transmitted by the other party, the internal and external units parse the data according to the interaction type, and synchronously combine the same series matching parameters with the same serial number in their own differentiated parameters, update and store them one by one according to the parameter address, and run according to the updated data.

[0047] The data parsing based on interaction type is detailed as follows: If the interaction type is 0, the internal or external machine will first compare the received data with its own stored matching parameters and decompile it into complete matching parameters; the decompiling process is implemented according to the parameter difference table.

[0048] If the interaction type is 1, then the complete data will be received directly.

[0049] Once the indoor or outdoor unit obtains the complete configuration parameters, it will update and store the data in its own differentiated parameter area, and will then execute according to the latest parameters.

[0050] By performing the above operations, when different series of units are mixed together, the units can be operated according to the optimal parameters tested in the factory, thus avoiding problems with performance, reliability, comfort, etc.

[0051] Example 2 Based on the unit's indoor and outdoor unit pairing method proposed in Example 1, a communication protocol extension mechanism is introduced. In step 3, when the serial numbers of the indoor and outdoor units do not match, the outdoor unit can request the indoor unit to upload its supported serial number list, and then the outdoor unit will search for the closest matching serial number from its local differentiated parameter area; or the indoor unit can request the outdoor unit to upload its supported serial number list, and then the indoor unit will search for the closest matching serial number from its local differentiated parameter area; in this example, the indoor and outdoor units interact with parameters based on the closest matching serial number, thereby achieving more flexible parameter adaptation.

[0052] For example, an outdoor unit with serial number 7 requests a list of supported serial numbers from an indoor unit with serial number 4. The indoor unit returns the pairing parameters of outdoor units 1-5 that it supports. At this time, the outdoor unit will perform the following comparison: the pairing parameters of outdoor unit 7 with indoor unit 4, and the pairing parameters of outdoor units 1-5 with indoor unit 4. By comparing, it will find the closest matching serial number. For example, the pairing parameters of outdoor unit 2 with indoor unit 4. The outdoor unit will then send the closest matching serial number 2 to the indoor unit, which can then tell the other party to execute according to the pairing parameters of serial number 2.

[0053] The hybrid control method based on communication protocol extension can further improve compatibility in hybrid scenarios, especially suitable for situations where customers replace indoor units on-site but cannot obtain the original series of outdoor units.

[0054] Example 3 Based on the unit indoor-outdoor unit matching method proposed in Example 1, a network module is added, and a cloud-based parameter dynamic loading mechanism is used for matching, as detailed below: When the internal and external machine serial numbers fail to match in step 3, the appropriate operating parameters can be downloaded from the cloud server to the local differentiated parameter area to achieve dynamic parameter loading.

[0055] This embodiment is applicable to situations where new product models are launched in the early stages and adaptation parameters have not yet been fixed locally, thereby improving system scalability and maintenance efficiency.

[0056] Example 4 like Figure 7 As shown, the present invention also proposes a unit indoor and outdoor unit matching system to implement the unit indoor and outdoor unit matching method proposed in the above embodiments. The system includes: The parameter storage module is used to store the parameters of the unit, which includes indoor and outdoor units. The stored parameters of each machine in the unit are divided into regular operating parameters, outdoor unit differentiated parameters, indoor unit differentiated parameters, and parameters of matching the same series. The parameters of outdoor and indoor units are stored in an optimized manner. The transmission module is used to send its own serial number and data to the other party through communication after the unit is powered on, and to return the parameter corresponding to the received serial number or the parameter not found flag. Among them, the internal and external units search for the existence of parameters corresponding to the received serial number based on the received serial number and their own stored differential parameters. If they exist, they are matched; if they do not exist, a parameter non-existence flag is returned. When the indoor and outdoor units receive a parameter non-existence flag, they will form a parameter difference table by comparing their own differentiated parameters with those of the same series. The interaction type determination module is used to determine the interaction type based on the amount of parameter data in the parameter difference table. The internal and external machines then select to transmit data to each other according to the parameter difference table or the complete parameters based on the interaction type. The matching module is used to parse the data after receiving the data transmitted by the other party from the internal and external units, and synchronously combine the same series matching parameters with the same serial number in its own differentiated parameters, update and store them one by one according to the parameter address, and run according to the updated data.

[0057] The beneficial effect of this invention is that, compared with the prior art, this invention achieves the optimal operation of mixing and matching different outdoor units and different indoor units by increasing the serial number interaction between the indoor and outdoor units and then reading the matching parameters of different series.

[0058] This disclosure can be a system, method, and / or computer program product. A computer program product may include a computer-readable storage medium having computer-readable program instructions loaded thereon for causing a processor to implement various aspects of this disclosure.

[0059] Computer-readable storage media can be tangible devices capable of holding and storing instructions for use by an instruction execution device. Computer-readable storage media can be, for example—but not limited to—electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital multifunction disc (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or recessed protrusions storing instructions thereon, and any suitable combination of the foregoing. The computer-readable storage media used herein are not to be construed as transient signals themselves, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., light pulses through fiber optic cables), or electrical signals transmitted through wires.

[0060] The computer-readable program instructions described herein can be downloaded from computer-readable storage media to various computing / processing devices, or downloaded via a network, such as the Internet, local area network, wide area network, and / or wireless network, to an external computer or external storage device. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. A network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards them to the computer-readable storage media in the respective computing / processing device.

[0061] Computer program instructions used to perform the operations of this disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, etc., and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, electronic circuitry, such as programmable logic circuitry, field-programmable gate arrays (FPGAs), or programmable logic arrays (PLAs), is personalized by utilizing the status information of the computer-readable program instructions to implement various aspects of this disclosure.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A method for matching indoor and outdoor units of a generator set, characterized in that, Includes the following steps: The unit includes indoor and outdoor units. The stored parameters of each machine in the unit are divided into regular operating parameters, outdoor unit differentiated parameters, indoor unit differentiated parameters, and parameters of matching the same series. The parameters of outdoor and indoor units are stored in an optimized manner. After the unit is powered on, the indoor and outdoor units send their serial numbers to each other through communication. The internal and external units search for the existence of parameters corresponding to the received serial number based on the received serial number and their own stored differential parameters. If the parameters exist, the internal and external units are matched. If the parameters do not exist, a parameter non-existence flag is returned to the other party. When the indoor and outdoor units receive a parameter non-existence flag returned by the other party, they form a parameter difference table by comparing their own differentiated parameters with the parameters of the same series. The interaction type is determined based on the amount of parameter data in the parameter difference table. The internal and external machines then choose to transmit data to each other according to the parameter difference table or the complete parameters, depending on the interaction type. After receiving data transmitted from the other party, the internal and external units parse the data according to the interaction type and simultaneously combine the matching parameters of the same series number in their own differentiated parameters to achieve the matching of internal and external units.

2. The method for matching indoor and outdoor units of a generator set according to claim 1, characterized in that, Optimize and store external machine parameters, specifically including: Let the serial number of the current outdoor unit be x, and n be the maximum serial number of the indoor unit that can be matched with this outdoor unit; The outdoor unit differentiation parameters include the outdoor unit operating parameters of the current series outdoor unit paired with different series indoor units, totaling n, including the outdoor unit operating parameters of series x paired with indoor units of series 1 to n; The differentiated parameters of the indoor unit include the indoor unit operating parameters of different series indoor units paired with the current series outdoor unit, including the indoor unit operating parameters of series 1 to x-1 paired with series x outdoor units; The parameters for matching units in the same series include the operating parameters of the indoor unit when matching indoor and outdoor units in the same series.

3. The method for matching indoor and outdoor units of a generator set according to claim 1, characterized in that, The indoor unit parameters are optimized and stored, specifically including: Let y be the serial number of the current indoor unit, and m be the maximum serial number of the outdoor unit that can be matched. The outdoor unit differentiation parameters include the indoor unit operating parameters of the current series indoor unit paired with different series outdoor units, totaling m parameters, including the outdoor unit operating parameters of the indoor unit with series number y paired with outdoor units with series numbers 1 to m; The indoor unit differentiation parameters store the outdoor unit operating parameters of different series of outdoor units paired with the current series of indoor units, and store the pairing parameters of indoor units from series 1 to y-1 with outdoor units from series y. The parameters for matching units in the same series include the operating parameters of the outdoor units that are matched with other units in the same series.

4. The method for matching indoor and outdoor units of a generator set according to claim 2, characterized in that, The outdoor unit searches for the existence of parameters corresponding to the received serial number based on the received serial number and its stored differentiated parameters. Specifically, this includes: The outdoor unit searches its own outdoor unit's differentiated parameter area for a parameter corresponding to the indoor unit's serial number based on the serial number sent by the indoor unit. If the parameter exists, it sends an indoor unit parameter existence flag to the indoor unit; otherwise, it sends an indoor unit parameter non-existence flag to the indoor unit.

5. The method for matching indoor and outdoor units of a generator set according to claim 3, characterized in that, The internal unit searches for the existence of parameters corresponding to the received serial number based on the received serial number and its stored differentiated parameters. Specifically, this includes: The indoor unit searches its own differentiated parameter area for a parameter corresponding to the outdoor unit's serial number based on the serial number sent by the outdoor unit. If the parameter exists, the indoor unit sends an outdoor unit parameter existence flag to the outdoor unit; otherwise, it sends an outdoor unit parameter non-existence flag to the outdoor unit.

6. The method for matching indoor and outdoor units of a generator set according to claim 1, characterized in that, When the indoor and outdoor units receive a parameter without a flag, they compare their own differentiated parameters with those of the same series to form a parameter difference table, which specifically includes: When the outdoor unit with serial number x receives a flag indicating that the outdoor unit parameter does not exist from the indoor unit with serial number y, it compares the corresponding matching parameters stored in its own indoor unit differential parameter area with the matching parameters of the corresponding indoor unit serial number in the matching parameters of the same series to form a parameter difference table. The parameter difference table includes parameter address and parameter data. Among them, the corresponding matching parameters stored in the indoor unit differential parameter area are the matching parameters of the indoor unit with series number y and the outdoor unit with series number x. In the matching parameters of the same series, the matching parameters of the corresponding indoor unit series number are the matching parameters of the indoor unit with series number y and the outdoor unit with series number y.

7. The method for matching indoor and outdoor units of a generator set according to claim 1, characterized in that, When the indoor and outdoor units receive a parameter without a flag, they compare their own differentiated parameters with those of the same series to form a parameter difference table, which specifically includes: When the indoor unit with serial number y receives a "parameter not found" flag from the outdoor unit with serial number x, it will compare the corresponding matching parameters stored in its own outdoor unit differential parameter area with the matching parameters of the corresponding outdoor unit serial number in the matching parameters of the same series to form a parameter difference table. The parameter difference table includes parameter address and parameter data. Among them, the corresponding matching parameters stored in the outdoor unit differential parameter area are the matching parameters of the outdoor unit with series number x and the indoor unit with series number y. In the matching parameters of the same series, the matching parameters of the corresponding outdoor unit series number are the matching parameters of the outdoor unit with series number x and the indoor unit with series number x.

8. A method for matching indoor and outdoor units according to claim 6 or 7, characterized in that, The method for determining the interaction type based on the amount of parameter data in the parameter difference table is as follows: If the number of difference parameters exceeds half of the total data, the interaction type is 1; if the number of difference parameters does not exceed half of the total data, the interaction type is 0.

9. A method for matching indoor and outdoor units of a generator set according to claim 8, characterized in that, The total amount of data refers to the complete operating parameters of the indoor and outdoor units that need to be matched. For an outdoor unit with serial number x, when it needs to be paired with an indoor unit with serial number y, the complete operating parameters of the indoor and outdoor units that need to be paired are: the complete operating parameters of the outdoor unit with serial number x and the indoor unit with serial number y stored in the indoor unit with serial number y. For an indoor unit with serial number y, when this indoor unit needs to be paired with an outdoor unit with serial number x, the complete operating parameters of the indoor and outdoor units that need to be paired are: the complete operating parameters of the indoor unit with serial number y and the outdoor unit with serial number x stored in the outdoor unit with serial number x.

10. A method for matching indoor and outdoor units of a generator set according to claim 8, characterized in that, The internal and external machines select either parameter difference table or complete parameters to transmit data to each other based on the interaction type, as detailed below: When the interaction type is 0, the internal or external machine will transmit the parameter difference table to the other party; When the interaction type is 1, the internal or external unit will transmit the complete operating parameters to the other party.

11. A generator set indoor and outdoor unit matching system, used to implement the generator set indoor and outdoor unit matching method according to any one of claims 1-10, characterized in that, include: The parameter storage module is used to store the parameters of the unit, which includes indoor and outdoor units. The stored parameters of each machine in the unit are divided into regular operating parameters, outdoor unit differentiated parameters, indoor unit differentiated parameters, and parameters of matching the same series. The parameters of outdoor and indoor units are stored in an optimized manner. The transmission module is used to send its own serial number and data to the other party through communication after the unit is powered on, and to return the parameter corresponding to the received serial number or the parameter not found flag. Among them, the internal and external units search for the existence of parameters corresponding to the received serial number based on the received serial number and their own stored differential parameters. If they exist, they are matched; if they do not exist, a parameter non-existence flag is returned. When the indoor and outdoor units receive a parameter non-existence flag, they will form a parameter difference table by comparing their own differentiated parameters with those of the same series. The interaction type determination module is used to determine the interaction type based on the amount of parameter data in the parameter difference table. The internal and external machines then select to transmit data to each other according to the parameter difference table or the complete parameters based on the interaction type. The matching module is used to parse the data after receiving the data transmitted by the other party from the internal and external units, and synchronously combine the same series matching parameters with the same serial number in its own differentiated parameters, update and store them one by one according to the parameter address, and run according to the updated data.

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