Electrical sub-control method, system, oxygen concentrator, and medium for group-type diffusion oxygen concentrator

Abstract

The present invention discloses a method, system, oxygen concentrator, and medium for electrical sub-control of a group-type diffusion oxygen concentrator. The method includes: using a debugging and maintenance terminal to debug / maintain the group-type diffusion oxygen concentrator, obtaining the actual number of outdoor and indoor units required during operation, obtaining the number of outdoor and indoor units that need to be increased or decreased, calculating the longest and shortest running time of each outdoor and indoor unit, and increasing or decreasing the number of outdoor and indoor units that are turned on; the electrical sub-control system includes a sub-controller, a diffusion oxygen supply terminal, outdoor and indoor units, and a debugging and maintenance terminal. The present invention enables the use of the group-type diffusion oxygen concentrator to greatly reduce the professional skills requirements for operators, reduce the time and difficulty of debugging and maintenance, and can greatly improve the use efficiency of each outdoor and indoor unit and the use efficiency of the entire diffusion oxygen concentrator, ensuring that the group-type diffusion oxygen concentrator has a good, stable, and reliable operating state.

Description

Technical Field

[0001] The present invention relates to the technical field of diffusion oxygen generators, and in particular to an electrical sub-control method, system, oxygen generator and medium for a grouped diffusion oxygen generator. Background Art

[0002] The statements in this section merely provide background technical information related to the present application and do not necessarily constitute prior art.

[0003] At high altitudes, the oxygen concentration in the air is low, which can cause hypoxia. As the hypoxia worsens, lips and nails will turn purple, blood pressure will drop, pupils will dilate, and people will fall into a coma. Finally, they will die from breathing difficulties, cardiac arrest, and hypoxia. The diffuse oxygen generator system is a device that improves the human body's environment by increasing the oxygen content (oxygen concentration) in a sealed space (such as a bedroom, office, etc.), allowing the human body to bathe in an oxygen-rich environment, thereby improving the human body's internal respiratory environment and promoting a benign cycle of metabolic processes, so as to alleviate hypoxia symptoms and improve health.

[0004] In the composition of the diffuse oxygen generator system, it generally includes an oxygen outlet terminal arranged indoors, an outdoor unit arranged outdoors, and a control module for controlling the entire diffuse oxygen generator system. Multiple outdoor and indoor units are arranged in the outdoor unit, and each outdoor and indoor unit includes a compressor, an oxygen diffuser, an adsorption tower and other components. The control method of the existing diffuse oxygen generator system can refer to the Chinese utility model patent named "Diffusion Oxygen Generator and Its Control System" and the announcement number is CN 220026549 U. The diffuse oxygen generator control system includes: a diffuse oxygen outdoor unit, a centralized control PCB, an indoor oxygen outlet terminal and a dial. The centralized control PCB is arranged in the diffuse oxygen outdoor unit, which is used to dynamically summarize and count the oxygen supply requirements of all indoor oxygen outlet terminals and control the opening and closing of the outdoor unit module. A PCB board is arranged in the indoor oxygen outlet terminal. Several of the indoor oxygen outlet terminals are connected to the outdoor unit module through an oxygen delivery pipe. The indoor oxygen outlet terminal starts a corresponding number of outdoor units through the centralized control PCB to control the oxygen output of the indoor oxygen outlet terminal.

[0005] In the process of implementing the present application, the inventors have found that the existing diffuse oxygen generator system has at least the following problems when in use:

[0006] 1. In the existing diffused oxygen generator system, since there are multiple external modules in the diffused oxygen generator system, and most of the external modules are used in relatively harsh high-altitude environments, the outdoor indoor units located outdoors will inevitably have faults such as insufficient oxygen concentration during use. Therefore, before leaving the factory, before use or during use, professional personnel are required to install, debug or maintain the external modules. Due to the harsh environment, it is not convenient for operators to operate, and the professional skills of operators are very high. It takes a long time, which brings a lot of inconvenience to the debugging and maintenance of the diffused oxygen generator.

[0007] 2. In the control method of the existing diffused oxygen generator system, the operating status of the outdoor and indoor units cannot be effectively monitored and controlled. During the long-term operation of multiple outdoor and indoor units, there is a problem that the operating time of one outdoor and indoor unit is particularly long, while the operating time of another outdoor and indoor unit is particularly short. The utilization efficiency of multiple outdoor and indoor units in the entire diffused oxygen generator is inconsistent, which makes the maintenance cycle of these outdoor and indoor units uncontrollable and the time for replacing accessories is no longer regular, which increases the difficulty of maintenance and repair. It is impossible to ensure that all these outdoor and indoor units are in good operating condition, which reduces the operating efficiency of the equipment.

[0008] In view of this, how to solve at least one of the above problems existing in the existing diffused oxygen concentrator system has become a subject to be studied and solved by the present invention. Summary of the invention

[0009] The purpose of the present invention is to provide a method, system, oxygen generator and medium for electrical sub-control of a group-type diffusion oxygen generator.

[0010] To achieve the above-mentioned object, the first aspect of the present invention proposes an electrical sub-control method for a group-type diffusion oxygen generator, the electrical sub-control method is used for electrical sub-control of a group-type diffusion oxygen generator, the group-type diffusion oxygen generator comprises a sub-controller and a plurality of diffusion oxygen supply terminals, and a plurality of outdoor and indoor units, the electrical sub-control method comprises:

[0011] The debugging and maintenance terminal is used to debug / maintain the group-type diffusion oxygen generator. The debugging and maintenance terminal is provided with a mode selection area, an internal unit operation selection area, and a signal and demand display area. The debugging and maintenance terminal is connected to the sub-controller. The manual mode or automatic mode is switched in the mode selection area according to the demand. The sub-controller transmits the operation signal of each outdoor and indoor unit to the debugging and maintenance terminal, and displays the operation status of the outdoor and indoor units in the internal unit operation selection area one by one. The total signal data of the diffusion oxygen supply terminal and the actual number of outdoor and indoor units required to be turned on are displayed in the signal and demand display area. Whether the corresponding outdoor and indoor units of each group can be operated is selected according to the operation status of the internal units.

[0012] The actual number of outdoor and indoor units required during operation is obtained. When the group-type diffuse oxygen concentrator is running, the total signal data of the indoor diffuse oxygen supply terminal is collected, and the actual number of outdoor and indoor units required in the group-type diffuse oxygen concentrator is determined according to the total signal data.

[0013] Obtain the number of outdoor and indoor units that need to be increased or decreased, compare the actual required number of outdoor and indoor units with the total number of outdoor and indoor units currently in operation, and determine the number of outdoor and indoor units that need to be increased or decreased at this time.

[0014] Calculate the longest and shortest running time of each outdoor and indoor unit, calculate the running time of each outdoor and indoor unit, and through circular comparison, obtain the longest running time of the outdoor and indoor units in the running state and the shortest running time of the outdoor and indoor units in the stopped state.

[0015] Increase or decrease the number of outdoor and indoor units turned on. If the number of outdoor and indoor units turned on needs to be increased, the outdoor and indoor units with the shortest running time in the stopped state will be automatically turned on. If the number of outdoor and indoor units turned on needs to be reduced, the outdoor and indoor units with the longest running time in the running state will be automatically turned off.

[0016] The second aspect of the present invention provides an electrical sub-control system for a group-type diffuse oxygen generator, which is used for the electrical sub-control method of the first aspect of the present invention to control the electrical sub-control of the group-type diffuse oxygen generator. The electrical sub-control system includes a sub-controller, a diffuse oxygen supply terminal, an outdoor and indoor unit, and a debugging and maintenance terminal. Among them:

[0017] The sub-controller is connected to the diffuse oxygen supply terminal through a signal line and is connected to the outdoor and indoor units through a control line.

[0018] There are multiple diffuse oxygen supply terminals, which are respectively connected to the oxygen outlets of the outdoor and indoor units for inputting indoor oxygen supply on-off control information.

[0019] There are multiple outdoor indoor units, and multiple outdoor indoor units are arranged in one outdoor machine box.

[0020] The debugging and maintenance terminal is connected to the sub-controller using a communication line during debugging / maintenance.

[0021] The electrical sub-control system is configured as follows: using the debugging and maintenance terminal to debug / maintain the group-type diffusion oxygen generator, and selecting whether the corresponding outdoor and indoor units of each group can be operated according to the operation status of the indoor units; the sub-controller obtains the actual required number of outdoor and indoor units during operation, obtains the number of outdoor and indoor units that need to be increased or decreased, and calculates the longest and shortest operating time of each outdoor and indoor unit, and then the sub-controller controls to increase or decrease the number of outdoor and indoor units that are turned on.

[0022] The third aspect of the present invention proposes a group-type diffusion oxygen concentrator, which includes the electrical sub-control system of the group-type diffusion oxygen concentrator as described in the second aspect of the present invention, and the group-type diffusion oxygen concentrator includes a sub-controller, an outdoor chassis and multiple diffusion oxygen supply terminals, and multiple outdoor indoor units. The multiple diffusion oxygen supply terminals are distributed indoors, and the multiple outdoor indoor units are concentrated in the outdoor chassis. The sub-controller is located on the side panel of the outdoor chassis, and the sub-controller integrates a PLC processor and an AD conversion module.

[0023] A fourth aspect of the present invention provides a readable storage medium having a control program stored thereon. When the control program is executed by a sub-controller, the sub-controller executes the steps of the method described in the first aspect of the present invention.

[0024] The relevant contents of the present invention are explained as follows:

[0025] 1. Through the implementation of the above technical solutions of the present invention, in view of the fact that the operating status of the outdoor and indoor units in the control mode of the existing diffusion oxygen generator system cannot be effectively monitored and controlled, which increases the difficulty of maintenance and repair, and cannot ensure that all these outdoor and indoor units are in good operating conditions, and the existing diffusion oxygen generator systems are mostly used in relatively harsh high-altitude environments, which have high requirements on the professional skills of the operators and take a long time, which brings a lot of inconvenience to the debugging and maintenance of the diffusion oxygen generator, etc., innovative designs are made of the electrical sub-control method, system, oxygen generator, and medium of the grouped diffusion oxygen generator.

[0026] In the electrical sub-control method of the grouped diffuse oxygen generator, the method designed to use the debugging and maintenance terminal to debug / maintain the grouped diffuse oxygen generator can quickly, accurately and reasonably judge and select the operating status of each group of outdoor and indoor units. During the debugging before delivery, it can be judged whether each outdoor and indoor unit is working normally. Because the oxygen supply flow rate requirements of customers are different, there are many specifications and models of diffuse oxygen generators. Different specifications and models mean that the number of outdoor and indoor units configured in the outdoor unit is different. The number of outdoor and indoor units in the operating program of the diffuse oxygen generator of this specification and model can be configured through the debugging and maintenance terminal. Therefore, no matter how many outdoor and indoor units there are, the relevant control programs are the same set of programs, and there is no need to write a special program for each specification and model; during the after-delivery maintenance, if the oxygen flow or concentration of the diffuser is abnormal, it is necessary to find out the fault. For outdoor and indoor units, each outdoor and indoor unit is tested separately, and the faulty outdoor and indoor unit is quickly located for replacement or repair. If it cannot be repaired and there is no replaceable outdoor and indoor unit on site, the faulty outdoor and indoor unit can be no longer included in the list of operable indoor units. This will not affect the normal operation of other outdoor and indoor units, and can also ensure the normal oxygen concentration and flow of the diffuser, so that the diffusion terminal can be used normally; when the debugging and maintenance terminal is used to debug / maintain the group-type diffused oxygen generator, whether the corresponding groups of outdoor and indoor units are operable is selected according to the operation status of the indoor units, and the operable outdoor and indoor units are used as the basis for calculating, increasing or decreasing the outdoor and indoor units to be turned on when the subsequent group-type diffused oxygen generator is running. When the group-type diffused oxygen generator is used in the subsequent use, the relevant control program will not call the inoperable outdoor and indoor units to avoid errors.

[0027] The methods designed therein include obtaining the actual number of outdoor and indoor units required during operation, obtaining the number of outdoor and indoor units that need to be increased or decreased, calculating the outdoor and indoor units with the longest and shortest operating time, and increasing or decreasing the number of outdoor and indoor units turned on. According to the number of indoor diffused oxygen supply terminals turned on by the customer, the outdoor units of the grouped diffused oxygen generator can turn on the number of outdoor and indoor units corresponding to the required number to meet the demand for oxygen supply flow, without turning on all outdoor and indoor units under any circumstances, thus avoiding waste of resources; when the number of outdoor units of the grouped diffused oxygen generator that needs to be turned on is inconsistent with the currently turned on number, the equipment can automatically adjust the number according to the program, without Manual adjustment is not required, which simplifies personnel operation and improves the operating efficiency of the equipment. By counting the operating time of each outdoor and indoor unit in the grouped diffusion oxygen generator outdoor unit, it is used as the basis for increasing or decreasing the number of outdoor and indoor units turned on, thereby improving the utilization efficiency of each outdoor and indoor unit and the utilization efficiency of the entire diffusion oxygen generator. The cycle method is used to find the outdoor and indoor unit with the longest operating time in the operating state and the one with the shortest operating time in the stopped state, balancing the usage time of each outdoor and indoor unit, so that the service life of each component in each outdoor and indoor unit remains consistent, so that the components that need to be replaced and maintained due can be maintained in the same batch, thereby improving utilization efficiency and avoiding frequent maintenance.

[0028] 2. In the first aspect of the above technical solution, the debugging and maintenance terminal is a touch screen, and the mode selection area and the internal unit operation selection area are selected by touch, and the switching between the manual mode and the automatic mode in the mode selection area is expressed by different icons or different colors, and the operable and inoperable status displays of the outdoor indoor units in the internal unit operation selection area are expressed by different icons or different colors, so as to further simplify the debugging and maintenance process, make the operation more convenient and intuitive, and enable operators to quickly perform debugging and maintenance work in harsh operating environments.

[0029] 3. In the first aspect of the above technical solution, in the step of selecting the manual mode or the automatic mode in the mode selection area according to the demand:

[0030] When the manual mode is selected, the operator will check the operation status of each outdoor and indoor unit respectively, manually select the outdoor and indoor units with faults as inoperable, and manually select the outdoor and indoor units that are operating normally as operable, so as to test each unit separately and quickly locate the faulty unit for replacement or repair;

[0031] When the automatic mode is selected, the control program in the group-type diffusion oxygen concentrator automatically selects whether to operate or not according to the operating conditions of each outdoor and indoor unit. In automatic mode, the opening and closing of the indoor unit will be automatically adjusted according to the control program without human operation, thereby reducing the professional requirements for operators and speeding up debugging and maintenance.

[0032] 4. In the first aspect of the above technical solution, in the process of debugging / maintaining the group-type diffusion oxygen generator using the debugging and maintenance terminal, the debugging and maintenance terminal is used to configure the group-type diffusion oxygen generators of various specifications and models with different numbers of outdoor and indoor units, and the configuration information is written into the control program of each group-type diffusion oxygen generator to execute the electrical sub-control method, thereby completing the purpose of using a set of control programs to debug and control the group-type diffusion oxygen generators of different specifications. Therefore, no matter how many outdoor and indoor units there are, the control program of the PLC is the same set of control programs, and there is no need to write a special program for each specification and model, thereby reducing cost expenditure and reducing operation difficulty.

[0033] 5. In the first aspect of the above technical solution, in the process of obtaining the actual number of outdoor and indoor units required during operation, each indoor diffuse oxygen supply terminal is connected to the sub-controller through a signal line, and the sub-controller collects the sum of the current signals of all diffuse oxygen supply terminals in operation through the signal line, and uses the sum of the current signals of all diffuse oxygen supply terminals in operation as the total signal data to determine the actual number of outdoor and indoor units required in the grouped diffuse oxygen generator, and a current adjustment accessory for adjusting the current size is provided on the diffuse oxygen supply terminal, so that the value of the current signal of a single diffuse oxygen supply terminal can correspond to opening 1, 2, 3, 4 or more indoor units. When each indoor diffuse oxygen supply terminal is turned on, a certain current will flow through the indoor diffuse oxygen supply terminal, and the sub-controller can collect the sum of the current signals of all indoor diffuse oxygen supply terminals in the open state through the signal line, and determine the number of outdoor and indoor units that need to be turned on in the outdoor unit according to the sum of the current. This method is reliable, effective, and has low implementation cost.

[0034] 6. In the first aspect of the above technical solution, multiple outdoor and indoor units are arranged in an outdoor chassis, and the sub-controller is located on the side panel of the outdoor chassis. The sub-controller integrates a PLC processor and an AD conversion module. The AD conversion module converts the analog current signal obtained through the signal line transmission into a numerical signal, and the PLC processor processes the collected numerical signal to realize the monitoring and control of the indoor diffuse oxygen supply terminal. Using the PLC processor for control, the system structure is simpler. Together with the AD conversion module, it is responsible for processing the collected terminal current signal and converting the analog current signal into a numerical signal to realize efficient and accurate monitoring and control of the indoor oxygen supply terminal.

[0035] 7. In the first aspect of the above technical solution, in the process of obtaining the number of outdoor and indoor units that need to be turned on, each outdoor and indoor unit is connected to the output point of the sub-controller through a control line, and the start and stop of each operable outdoor and indoor unit are controlled by the output signal of the sub-controller. At the same time, the state of the sub-controller output signal can be used to determine whether each outdoor and indoor unit is currently in an on or off state. If the signal is ON, it means it is turned on, and if the signal is OFF, it means it is stopped. The control program counts the number of output point signals of the sub-controller that are ON, which is the outdoor and indoor unit currently in the on state. Total number; when the user opens or closes the diffusion oxygen supply terminal or adjusts the size of the diffusion oxygen supply terminal during the use of the grouped diffusion oxygen concentrator, the total signal data of the indoor diffusion oxygen supply terminal is collected and changes, and the actual number of outdoor and indoor units in the grouped diffusion oxygen concentrator also changes accordingly; compare the actual number of outdoor and indoor units required with the total number of outdoor and indoor units currently in the open state. If the former is greater than the latter, more outdoor and indoor units need to be turned on, and the number of turned on units is the difference between the two. If the former is less than the latter, the outdoor and indoor units that have been turned on need to be turned off, and the number of turned off units is also the difference between the two. The above steps can quickly and accurately obtain the number of outdoor and indoor units that need to be increased or decreased, providing support for the implementation of subsequent steps.

[0036] 8. In the first aspect of the above technical solution, in the process of calculating the outdoor indoor unit with the longest and shortest operating time, the operating time of each outdoor indoor unit is counted through the control program, and the operating time of the first outdoor indoor unit in operation is designated as the one with the longest operating time among all outdoor indoor units according to the round-robin method, and the operating time of each subsequent outdoor indoor unit in operation is cyclically taken and compared with it, and the operating time of all outdoor indoor units in operation is continuously refreshed to find the one with the longest operating time; according to the round-robin method, the operating time of the first outdoor indoor unit in the stopped state is designated as the one with the shortest operating time among all outdoor indoor units, and the operating time of each subsequent outdoor indoor unit in the stopped state is cyclically taken and compared with it, and the operating time of all outdoor indoor units in the stopped state is continuously refreshed to find the one with the shortest operating time among all outdoor indoor units in the stopped state. A round-robin method is used to refresh and compare the longest running time of all outdoor and indoor units in operation, and the running time of the first outdoor and indoor unit in the stopped state is the shortest running time of all outdoor and indoor units. Less computing power is required, and more sophisticated and expensive chips do not need to be used to complete the relevant calculations. Chips with more reliable quality and lower cost can be used, and the calculation results are reliable and accurate, which can ensure that the operating efficiency of each outdoor and indoor unit is balanced.

[0037] 9. In the first aspect of the above technical solution, the process of increasing or decreasing the number of outdoor and indoor units turned on includes the following:

[0038] When the number of outdoor indoor units that need to be turned on is greater than the total number of outdoor indoor units currently in the turned-on state, that is, the number of indoor units that need to be turned on needs to be increased, the outdoor indoor unit with the shortest running time among the outdoor indoor units that are in the stopped state is turned on. If the number of outdoor indoor units that need to be turned on has not been reached after turning on, the outdoor indoor unit with the shortest running time among the remaining outdoor indoor units that are in the stopped state continues to be turned on until the number of outdoor indoor units that need to be turned on is equal to the total number of outdoor indoor units that are currently in the turned-on state;

[0039] When the number of outdoor indoor units that need to be turned on is less than the total number of outdoor indoor units that are currently turned on, that is, the number of outdoor indoor units that need to be turned on needs to be reduced, turn off the outdoor indoor unit with the longest running time among the outdoor indoor units that are in operation. If the number of outdoor indoor units that need to be reduced has not been reached after turning off, continue to turn off the outdoor indoor unit with the longest running time among the remaining outdoor indoor units in operation until the number of outdoor indoor units that need to be turned on is equal to the total number of outdoor indoor units that are currently turned on.

[0040] By implementing the above method, the operating time of each outdoor and indoor unit is balanced to the maximum extent, thereby ensuring that each outdoor and indoor unit can always operate at a high efficiency, and the maintenance cycle can be extended, so that the service life of the group-type diffusion oxygen generator is longer and the use status is better maintained.

[0041] 10. In the second aspect of the above technical solution, the diffuse oxygen supply terminals are respectively located in different rooms and the equivalent impedance of the diffuse oxygen supply terminals is set inversely according to the indoor space, that is, the equivalent impedance of the diffuse oxygen supply terminal is set according to the size of the indoor space where the diffuse oxygen supply terminal is located. The larger the indoor space, the smaller the corresponding diffuse oxygen supply terminal equivalent impedance, which results in that when the voltage remains unchanged, the current collected by the diffuse oxygen supply terminal sub-controller in the place is also larger, and then the number of outdoor and indoor units required to be turned on is opened by corresponding to the threshold value corresponding to the total current, so that each diffuse oxygen supply terminal provides oxygen supply with different flow rates according to the indoor space where it is located, so that the oxygen concentration in each indoor space can be kept within a stable standard range to ensure normal oxygen supply.

[0042] 11. In the present invention, unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] 12. In the present invention, the orientation or position relationship indicated by the terms "center", "upper", "lower", "axial", "bottom", "inner", "outer", etc. is based on the orientation or position assembly relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0044] 13. In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] 14. Also, the term “and / or” in this application means three parallel schemes, taking “obtaining the current measurement result information of the current user’s blood pressure and / or pulse” as an example, including the scheme of “obtaining the current measurement result information of the current user’s blood pressure”, or the scheme of “obtaining the current measurement result information of the current user’s pulse”, or the scheme of “obtaining the current measurement result information of the current user’s blood pressure and pulse” that are satisfied at the same time.

[0046] Due to the application of the above scheme, the present invention has the following advantages and effects compared with the prior art:

[0047] 1. In the scheme of the present invention, in the electrical sub-control method of the group-type diffusion oxygen generator, the method designed to use the debugging and maintenance terminal to debug / maintain the group-type diffusion oxygen generator can quickly, accurately and reasonably judge and select the operating status of each group of outdoor and indoor units. During the debugging before delivery, it can be judged whether each outdoor and indoor unit is working normally. Because the oxygen supply flow rate requirements of customers are different, there are many specifications and models of diffusion oxygen generators. Different specifications and models mean that the number of outdoor and indoor units configured in the outdoor unit is different. The number of outdoor and indoor units in the operating program of the diffusion oxygen generator of this specification and model can be configured through the debugging and maintenance terminal. Therefore, no matter how many outdoor and indoor units there are, the relevant control program is the same set of programs, and there is no need to write a special program for each specification and model; during the after-delivery maintenance, if the oxygen flow or concentration of the diffusion machine is abnormal, it is necessary to Find out the faulty outdoor and indoor units, test each outdoor and indoor unit separately, quickly locate the faulty outdoor and indoor unit for replacement or repair. If it cannot be repaired and there is no replaceable outdoor and indoor unit on site, the faulty outdoor and indoor unit can no longer be put into the list of operable indoor units. This will not affect the normal operation of other outdoor and indoor units, and can also ensure the normal oxygen concentration and flow of the diffuser, so that the diffusion terminal can be used normally. When the debugging and maintenance terminal is used to debug / maintain the group-type diffused oxygen generator, it is selected whether the corresponding groups of outdoor and indoor units are operable according to the operation status of the indoor units, and the operable outdoor and indoor units are used as the selection basis for calculating, increasing or decreasing the outdoor and indoor units to be turned on when the subsequent group-type diffused oxygen generator is running. When the group-type diffused oxygen generator is used in the subsequent use, the relevant control program will not call the inoperable outdoor and indoor units to avoid errors.

[0048] 2. The scheme of the present invention is designed to obtain the actual number of outdoor and indoor units required during operation, obtain the number of outdoor and indoor units that need to be increased or decreased, calculate the longest and shortest running time of each outdoor and indoor unit, and increase or decrease the number of outdoor and indoor units turned on. These methods can open the number of outdoor and indoor units corresponding to the required number in the outdoor unit of the grouped diffusion oxygen generator according to the number of indoor diffuse oxygen supply terminals turned on by the customer, so as to meet the demand for oxygen supply flow, without turning on all outdoor and indoor units under any circumstances, thus avoiding waste of resources; when the number of units in the outdoor unit of the grouped diffusion oxygen generator that need to be turned on is inconsistent with the currently turned on number, the device can automatically adjust according to the program The number of outdoor and indoor units can be adjusted manually without manual adjustment, which simplifies personnel operation and improves the operating efficiency of the equipment. By counting the operating time of each outdoor and indoor unit in the grouped diffusion oxygen generator outdoor unit, the operating efficiency of each outdoor and indoor unit and the entire diffusion oxygen generator are improved. The cycle method is used to find the outdoor and indoor unit with the longest operating time in the running state and the one with the shortest operating time in the stopped state, and the operating time of each outdoor and indoor unit is balanced, so that the service life of each component in each outdoor and indoor unit is consistent, so that the expired parts that need to be replaced and maintained can be maintained in the same batch, which improves the use efficiency and avoids frequent maintenance.

[0049] 3. In summary, the present invention innovatively designs a group-type diffusion oxygen concentrator electrical sub-control method, a group-type diffusion oxygen concentrator electrical system, a group-type diffusion oxygen concentrator electrical, and a readable storage medium for storing a control program, so that the use of the group-type diffusion oxygen concentrator can greatly reduce the professional skill requirements for operators, reduce the time and difficulty of debugging and maintenance, and can greatly improve the utilization efficiency of each outdoor and indoor unit and the utilization efficiency of the entire diffusion oxygen concentrator, ensuring that the group-type diffusion oxygen concentrator has a good, stable and reliable operating state, and therefore has outstanding substantial characteristics and significant progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a flow chart of the electrical sub-control method of the group-type diffusion oxygen generator in an embodiment of the present invention;

[0051] Figure 2 This is a schematic diagram of an interface of a debugging and maintenance terminal (maintenance touch screen) in an embodiment of the present invention;

[0052] Figure 3 It is a schematic diagram of the connection between each indoor diffuse oxygen supply terminal and the sub-controller in the outdoor cabinet in an embodiment of the present invention;

[0053] Figure 4 This is an electrical wiring diagram of a diffusion oxygen concentrator in an embodiment of the present invention;

[0054] Figure 5 This is the connection diagram of the 40L outdoor unit. DETAILED DESCRIPTION

[0055] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0056] The present invention aims to address the problems that the operating status of outdoor and indoor units in the control mode of the existing diffusion oxygen concentrator system cannot be effectively monitored and controlled, which increases the difficulty of maintenance and repair and cannot ensure that all of these outdoor and indoor units are in good operating condition. In addition, since the existing diffusion oxygen concentrator systems are mostly used in relatively harsh high-altitude environments, they have high requirements on the professional skills of operators and take a long time, which brings a lot of inconvenience to the debugging and maintenance of the diffusion oxygen concentrators. The present invention innovatively designs a grouped diffusion oxygen concentrator electrical sub-control method, a grouped diffusion oxygen concentrator electrical system, a grouped diffusion oxygen concentrator electrical, and a readable storage medium for storing a control program.

[0057] Embodiment 1: Embodiment 1 of the present invention proposes an electrical sub-control method for a group-type diffuse oxygen generator. The electrical sub-control method is used for electrical sub-control of a group-type diffuse oxygen generator. The group-type diffuse oxygen generator includes a sub-controller and multiple diffuse oxygen supply terminals, and multiple outdoor and indoor units. The electrical sub-control method includes:

[0058] S100: Use the debugging and maintenance terminal to debug / maintain the group-type diffusion oxygen generator. The debugging and maintenance terminal is provided with a mode selection area, an internal unit operation selection area, and a signal and demand display area. The debugging and maintenance terminal is connected to the sub-controller. According to the demand, the manual mode or the automatic mode is switched in the mode selection area. The sub-controller transmits the operation signal of each outdoor and indoor unit to the debugging and maintenance terminal, and displays the operation status of the outdoor and indoor units in the internal unit operation selection area one by one. The total signal data of the diffusion oxygen supply terminal and the actual number of outdoor and indoor units required to be turned on are displayed in the signal and demand display area. According to the operation status of the internal units, it is selected whether the corresponding outdoor and indoor units of each group can be operated.

[0059] S200: Acquire the actual number of outdoor and indoor units required during operation. When the group-type diffuse oxygen generator is in operation, collect the total signal data of the indoor diffuse oxygen supply terminal, and determine the actual number of outdoor and indoor units required in the group-type diffuse oxygen generator according to the total signal data.

[0060] S300: Obtain the number of outdoor and indoor units that need to be increased or decreased, compare the actual required number of outdoor and indoor units with the total number of outdoor and indoor units currently in operation, and determine the number of outdoor and indoor units that need to be increased or decreased at this time.

[0061] S400: Calculate the longest and shortest running time of each outdoor and indoor unit, calculate the running time of each outdoor and indoor unit, and obtain the longest running time of the outdoor and indoor units in the running state and the shortest running time of the outdoor and indoor units in the stopped state through circular comparison.

[0062] S500: Increase or decrease the number of outdoor and indoor units turned on. If the number of outdoor and indoor units turned on needs to be increased, the outdoor and indoor units with the shortest running time in the stopped state will be automatically turned on. If the number of outdoor and indoor units turned on needs to be reduced, the outdoor and indoor units with the longest running time in the running state will be automatically turned off.

[0063] In the electrical sub-control method of the grouped diffuse oxygen generator, the method designed to use the debugging and maintenance terminal to debug / maintain the grouped diffuse oxygen generator can quickly, accurately and reasonably judge and select the operating status of each group of outdoor and indoor units. During the debugging before delivery, it can be judged whether each outdoor and indoor unit is working normally. Because the oxygen supply flow rate requirements of customers are different, there are many specifications and models of diffuse oxygen generators. Different specifications and models mean that the number of outdoor and indoor units configured in the outdoor unit is different. The number of outdoor and indoor units in the operating program of the diffuse oxygen generator of this specification and model can be configured through the debugging and maintenance terminal. Therefore, no matter how many outdoor and indoor units there are, the relevant control programs are the same set of programs, and there is no need to write a special program for each specification and model; during the after-delivery maintenance, if the oxygen flow or concentration of the diffuser is abnormal, it is necessary to find out the fault. For outdoor and indoor units, each outdoor and indoor unit is tested separately, and the faulty outdoor and indoor unit is quickly located for replacement or repair. If it cannot be repaired and there is no replaceable outdoor and indoor unit on site, the faulty outdoor and indoor unit can be no longer included in the list of operable indoor units. This will not affect the normal operation of other outdoor and indoor units, and can also ensure the normal oxygen concentration and flow of the diffuser, so that the diffusion terminal can be used normally; when the debugging and maintenance terminal is used to debug / maintain the group-type diffused oxygen generator, whether the corresponding groups of outdoor and indoor units are operable is selected according to the operation status of the indoor units, and the operable outdoor and indoor units are used as the basis for calculating, increasing or decreasing the outdoor and indoor units to be turned on when the subsequent group-type diffused oxygen generator is running. When the group-type diffused oxygen generator is used in the subsequent use, the relevant control program will not call the inoperable outdoor and indoor units to avoid errors.

[0064] The methods designed therein include obtaining the actual number of outdoor and indoor units required during operation, obtaining the number of outdoor and indoor units that need to be increased or decreased, calculating the outdoor and indoor units with the longest and shortest operating time, and increasing or decreasing the number of outdoor and indoor units turned on. According to the number of indoor diffused oxygen supply terminals turned on by the customer, the outdoor units of the grouped diffused oxygen generator can turn on the number of outdoor and indoor units corresponding to the required number to meet the demand for oxygen supply flow, without turning on all outdoor and indoor units under any circumstances, thus avoiding waste of resources; when the number of outdoor units of the grouped diffused oxygen generator that needs to be turned on is inconsistent with the currently turned on number, the equipment can automatically adjust the number according to the program, without Manual adjustment is not required, which simplifies personnel operation and improves the operating efficiency of the equipment. By counting the operating time of each outdoor and indoor unit in the grouped diffusion oxygen generator outdoor unit, it is used as the basis for increasing or decreasing the number of outdoor and indoor units turned on, thereby improving the utilization efficiency of each outdoor and indoor unit and the utilization efficiency of the entire diffusion oxygen generator. The cycle method is used to find the outdoor and indoor unit with the longest operating time in the operating state and the one with the shortest operating time in the stopped state, balancing the usage time of each outdoor and indoor unit, so that the service life of each component in each outdoor and indoor unit remains consistent, so that the components that need to be replaced and maintained due can be maintained in the same batch, thereby improving utilization efficiency and avoiding frequent maintenance.

[0065] In one of the ways of the first embodiment of the present invention, in the step of debugging / maintaining the group-type diffusion oxygen generator using a debugging and maintenance terminal in S100, the debugging and maintenance terminal is a touch screen, and the mode selection area and the internal unit operation selection area are selected by touching, and the switching between the manual mode and the automatic mode in the mode selection area is expressed by different icons or different colors, and the operable and inoperable status display of the outdoor and indoor units in the internal unit operation selection area is expressed by different icons or different colors, so as to further simplify the debugging and maintenance process, make the operation more convenient and intuitive, and enable operators to quickly perform debugging and maintenance work in harsh use environments.

[0066] In another embodiment of the present invention, in the step of debugging / maintaining the group-type diffusion oxygen generator using the debugging and maintenance terminal in S100, in the step of selecting the manual mode or the automatic mode in the mode selection area according to the demand:

[0067] When the manual mode is selected, the operator will check the operation status of each outdoor and indoor unit respectively, manually select the outdoor and indoor units with faults as inoperable, and manually select the outdoor and indoor units that are operating normally as operable, so as to test each unit separately and quickly locate the faulty unit for replacement or repair;

[0068] When the automatic mode is selected, the control program in the group-type diffusion oxygen concentrator automatically selects whether to operate or not according to the operating conditions of each outdoor and indoor unit. In automatic mode, the opening and closing of the indoor unit will be automatically adjusted according to the control program without human operation, thereby reducing the professional requirements for operators and speeding up debugging and maintenance.

[0069] In another embodiment of the present invention, in S100, during the process of debugging / maintaining the group-type diffusion oxygen generator using the debugging and maintenance terminal, the group-type diffusion oxygen generators of various specifications and models with different numbers of outdoor and indoor units are configured through the debugging and maintenance terminal, and the configuration information is written into the control program of each group-type diffusion oxygen generator to execute the electrical sub-control method, thereby completing the purpose of using a set of control programs to debug and control the group-type diffusion oxygen generators of different specifications. Therefore, no matter how many outdoor and indoor units there are, the control program of the PLC is the same set of programs, and there is no need to write a special program for each specification and model, thereby reducing cost expenditure and reducing operation difficulty.

[0070] In one of the ways of the first embodiment of the present invention, in the process of obtaining the actual number of outdoor and indoor units required during operation in S200, each indoor diffuse oxygen supply terminal is connected to the sub-controller through a signal line, and the sub-controller collects the sum of the current signals of all diffuse oxygen supply terminals in operation through the signal line, and uses the sum of the current signals of all diffuse oxygen supply terminals in operation as the total signal data to determine the actual number of outdoor and indoor units required in the grouped diffuse oxygen generator, and a current adjustment accessory for adjusting the current size is provided on the diffuse oxygen supply terminal, so that the value of the current signal of a single diffuse oxygen supply terminal can correspond to opening 1, 2, 3, 4 or more indoor units. When each indoor diffuse oxygen supply terminal is turned on, a certain current will flow through the indoor diffuse oxygen supply terminal, and the sub-controller can collect the sum of the current signals of all indoor diffuse oxygen supply terminals in the open state through the signal line, and determine the number of outdoor and indoor units that need to be turned on in the outdoor unit according to the sum of the current. This method is reliable, effective, and has low implementation cost.

[0071] In another embodiment of the present invention, multiple outdoor and indoor units are arranged in an outdoor chassis, and the sub-controller is located on the side panel of the outdoor chassis. The sub-controller integrates a PLC processor and an AD conversion module. The AD conversion module converts the analog current signal obtained through the signal line transmission into a numerical signal, and the PLC processor processes the collected numerical signal to realize monitoring and control of the indoor diffuse oxygen supply terminal. Using the PLC processor for control, the system structure is simpler. Together with the AD conversion module, it is responsible for processing the collected terminal current signal and converting the analog current signal into a numerical signal to realize efficient and accurate monitoring and control of the indoor oxygen supply terminal.

[0072] In another embodiment of the present invention, in S300, in the process of obtaining the number of outdoor and indoor units that need to be increased or decreased, each outdoor and indoor unit is connected to the output point of the sub-controller through a control line, and the start and stop of each operable outdoor and indoor unit is controlled by the output signal of the sub-controller. At the same time, the state of the sub-controller output signal can be used to determine whether each outdoor and indoor unit is currently in an on or off state. If the signal is ON, it means it is on, and if the signal is OFF, it means it is stopped. The control program counts the number of output point signals of the sub-controller that are ON, which is the number of outdoor and indoor units that are currently in the on state. Total number of units; when the user opens or closes the diffusion oxygen supply terminal or adjusts the size of the diffusion oxygen supply terminal during the use of the grouped diffusion oxygen concentrator, the total signal data of the indoor diffusion oxygen supply terminal is collected and changes, and the actual number of outdoor and indoor units in the grouped diffusion oxygen concentrator also changes accordingly; compare the actual number of outdoor and indoor units required with the total number of outdoor and indoor units currently in the open state. If the former is greater than the latter, more outdoor and indoor units need to be turned on, and the number of turned on units is the difference between the two. If the former is less than the latter, the outdoor and indoor units that have been turned on need to be turned off, and the number of turned off units is also the difference between the two. The above steps can quickly and accurately obtain the number of outdoor and indoor units that need to be increased or decreased, providing support for the implementation of subsequent steps.

[0073] In one of the methods of the first embodiment of the present invention, in the process of calculating the longest and shortest running time of each outdoor indoor unit in S400, the running time of each outdoor indoor unit is counted through the control program, and the running time of the first outdoor indoor unit in the running state is designated as the one with the longest running time among all the outdoor indoor units according to the round-robin method, and the running time of each subsequent outdoor indoor unit in operation is cyclically taken and compared with it, and the running time of all the outdoor indoor units in operation is continuously refreshed to find the one with the longest running time among all the outdoor indoor units in the running state; the running time of the first outdoor indoor unit in the stopped state is designated as the one with the shortest running time among all the outdoor indoor units according to the round-robin method, and the running time of each subsequent indoor unit in the stopped state is cyclically taken and compared with it, and the running time of all the outdoor indoor units in the stopped state is continuously refreshed to find the one with the shortest running time among all the outdoor indoor units in the stopped state. A round-robin method is used to refresh and compare the longest running time of all outdoor and indoor units in operation, and the running time of the first outdoor and indoor unit in the stopped state is the shortest running time of all outdoor and indoor units. Less computing power is required, and more sophisticated and expensive chips do not need to be used to complete the relevant calculations. Chips with more reliable quality and lower cost can be used, and the calculation results are reliable and accurate, which can ensure that the operating efficiency of each outdoor and indoor unit is balanced.

[0074] In another manner of the first embodiment of the present invention, the process of increasing or decreasing the number of activated outdoor and indoor units in S500 includes the following:

[0075] When the number of outdoor indoor units that need to be turned on is greater than the total number of outdoor indoor units currently in the turned-on state, that is, the number of indoor units that need to be turned on needs to be increased, the outdoor indoor unit with the shortest running time among the outdoor indoor units that are in the stopped state is turned on. If the number of outdoor indoor units that need to be turned on has not been reached after turning on, the outdoor indoor unit with the shortest running time among the remaining outdoor indoor units that are in the stopped state continues to be turned on until the number of outdoor indoor units that need to be turned on is equal to the total number of outdoor indoor units that are currently in the turned-on state;

[0076] When the number of outdoor indoor units that need to be turned on is less than the total number of outdoor indoor units that are currently turned on, that is, the number of outdoor indoor units that need to be turned on needs to be reduced, turn off the outdoor indoor unit with the longest running time among the outdoor indoor units that are in operation. If the number of outdoor indoor units that need to be reduced has not been reached after turning off, continue to turn off the outdoor indoor unit with the longest running time among the remaining outdoor indoor units in operation until the number of outdoor indoor units that need to be turned on is equal to the total number of outdoor indoor units that are currently turned on.

[0077] By implementing the above method, the operating time of each outdoor and indoor unit is balanced to the maximum extent, thereby ensuring that each outdoor and indoor unit can always operate at a high efficiency, and the maintenance cycle can be extended, so that the service life of the group-type diffusion oxygen generator is longer and the use status is better maintained.

[0078] Embodiment 2: Embodiment 2 of the present invention proposes an electrical sub-control system for a group-type diffuse oxygen generator, which is used for the electrical sub-control method of Embodiment 1 of the present invention to control the electrical sub-control of the group-type diffuse oxygen generator. The electrical sub-control system includes a sub-controller, a diffuse oxygen supply terminal, an outdoor and indoor unit, and a debugging and maintenance terminal. Among them:

[0079] The sub-controller is connected to the diffuse oxygen supply terminal through a signal line and is connected to the outdoor and indoor units through a control line.

[0080] There are multiple diffuse oxygen supply terminals, which are respectively connected to the oxygen outlets of the outdoor and indoor units for inputting indoor oxygen supply on-off control information.

[0081] There are multiple outdoor indoor units, and multiple outdoor indoor units are arranged in one outdoor machine box.

[0082] The debugging and maintenance terminal is connected to the sub-controller using a communication line during debugging / maintenance.

[0083] The electrical sub-control system is configured as follows: using the debugging and maintenance terminal to debug / maintain the group-type diffusion oxygen generator, and selecting whether the corresponding outdoor and indoor units of each group can be operated according to the operation status of the indoor units; the sub-controller obtains the actual required number of outdoor and indoor units during operation, obtains the number of outdoor and indoor units that need to be increased or decreased, and calculates the longest and shortest operating time of each outdoor and indoor unit, and then the sub-controller controls to increase or decrease the number of outdoor and indoor units that are turned on.

[0084] In one of the ways of the second embodiment of the present invention, the diffuse oxygen supply terminals are respectively located in different rooms and the equivalent impedance of the diffuse oxygen supply terminals is set inversely according to the indoor space, that is, the equivalent impedance of the diffuse oxygen supply terminal is set according to the size of the indoor space where the diffuse oxygen supply terminal is located. The larger the indoor space, the smaller the corresponding diffuse oxygen supply terminal equivalent impedance. As a result, when the voltage remains unchanged, the current collected by the sub-controller after the diffuse oxygen supply terminal in the place is turned on is also larger. Then, the number of outdoor and indoor units that need to be turned on is turned on by the corresponding threshold value corresponding to the total current, so that each diffuse oxygen supply terminal provides oxygen supply with different flow rates according to the indoor space where it is located, so that the oxygen concentration in each indoor space can be kept within a stable standard range to ensure normal oxygen supply.

[0085] Embodiment 3. Embodiment 3 of the present invention discloses a group-type diffused oxygen concentrator, which comprises the electrical sub-control system of the group-type diffused oxygen concentrator as described in Embodiment 2 of the present invention, wherein the group-type diffused oxygen concentrator comprises a sub-controller, an outdoor chassis, a plurality of diffused oxygen supply terminals, and a plurality of outdoor and indoor units, wherein the plurality of diffused oxygen supply terminals are distributed indoors, and the plurality of outdoor and indoor units are centrally arranged in the outdoor chassis, wherein the sub-controller is located on the side panel of the outdoor chassis, and wherein the sub-controller internally integrates a PLC processor and an AD conversion module.

[0086] Embodiment 4: Embodiment 4 of the present invention further discloses a readable storage medium, on which a control program is stored. When the control program is executed by a sub-controller, the sub-controller executes the steps of the method described in Embodiment 1 of the present invention.

[0087] Those skilled in the art can understand that the operation of the main control unit in the above-mentioned embodiment method can be completed by instructing the relevant hardware (blood pressure detection unit) through a program, and the program is stored in a readable storage medium, including a number of instructions for a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) to perform the operation performed by the main control unit in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0088] like Figure 1 As shown, the use process of the electrical sub-control method of the grouped diffusion oxygen generator in the embodiment of the present invention can be referred to as follows:

[0089] The electrical sub-control method comprises:

[0090] S100: Use the debugging and maintenance terminal to debug / maintain the group-type diffusion oxygen generator;

[0091] S200: Obtain the actual number of outdoor and indoor units required during operation;

[0092] S300: Obtain the number of outdoor and indoor units that need to be increased or decreased;

[0093] S400: Calculate the longest and shortest running time of each outdoor and indoor unit;

[0094] S500: Increase or decrease the number of outdoor and indoor units turned on.

[0095] The details are as follows:

[0096] S100: Use the debugging and maintenance terminal to debug / maintain the group-type diffusion oxygen generator. The debugging and maintenance terminal is provided with a mode selection area, an internal unit operation selection area, and a signal and demand display area. The debugging and maintenance terminal is connected to the sub-controller. According to the demand, the manual mode or the automatic mode is switched in the mode selection area. The sub-controller transmits the operation signal of each outdoor and indoor unit to the debugging and maintenance terminal, and displays the operation status of the outdoor and indoor units in the internal unit operation selection area one by one. The total signal data of the diffusion oxygen supply terminal and the actual number of outdoor and indoor units required to be turned on are displayed in the signal and demand display area. According to the operation status of the internal units, it is selected whether the corresponding outdoor and indoor units of each group can be operated.

[0097] Due to different oxygen flow requirements of customers, there are many specifications and models of diffusion oxygen concentrators. Different specifications and models mean different numbers of internal units configured in the outdoor unit. When debugging the equipment, the touch screen used as a maintenance tool is connected to the sub-controller. The number of internal units in the operating program of the diffusion oxygen concentrator of this specification and model can be configured through the touch screen. Therefore, no matter how many internal units there are, the PLC control program is the same set of programs, and there is no need to write a special program for each specification and model.

[0098] When the debugging and maintenance terminal is used to debug / maintain the group-type diffusion oxygen generator in step S100, the debugging and maintenance terminal used is a maintenance touch screen. Specifically:

[0099] Contents on the touch screen during debugging and maintenance:

[0100] The contents of the touch screen display can be referred to Figure 2 , including: determination of the number of internal units, internal unit operation switch, internal unit operation time, signal current, signal required number of units, pump with the longest operation time Tmax, pump with the shortest operation time Tmin, reduction in number of units M40-, increase in number of units M42+, and manual-automatic mode function button M112.

[0101] The number of internal units is determined. If a unit is selected and a ✓ is placed in front of the unit, it means that the oxygen concentrator of this specification and model will use this unit. If a unit is unselected and a × is placed in front of the unit, it means that the oxygen concentrator of this specification and model will not use this unit.

[0102] Internal unit operation switch, Y0-Y11 indicates the operation switch and current operation status of each internal unit. When the unit is in operation, the background is red, and when it is stopped, the background is gray. Below Y0-Y11 is the total cumulative operation time of each internal unit.

[0103] Signal current and signal required number of units, real-time display of the total current currently passing through the terminal and the corresponding total number of units required to be opened.

[0104] Tmax indicates the pump with the longest running time among the running internal units, Tmin indicates the pump with the shortest running time among the stopped internal units, M40- indicates that the number of internal units currently running is greater than the actually required number of internal units, and the next internal unit number should be closed, M42+ indicates that the number of internal units currently running is less than the actually required number of internal units, and the next internal unit number should be opened.

[0105] M112 indicates the manual / automatic mode function switch. When M112=0, the button is blue, indicating that it is currently in automatic mode. When M112=1, the button is orange, indicating that it is currently in manual mode. In automatic mode, the opening and closing of the internal unit will be automatically adjusted according to the program. In manual mode, the opening and closing of the internal unit needs to be manually adjusted.

[0106] Factory commissioning:

[0107] Connect the touch screen and sub-controller with a communication line. If the specification model required by the customer is a 6-unit oxygen concentrator, then put a ✓ or select the 1-6 internal units, and put a × or cancel the selection in front of the 7-10 internal units. In manual mode, run each unit separately for a period of time to observe the oxygen concentration to determine whether each internal unit is working properly.

[0108] After factory inspection:

[0109] If the oxygen flow or concentration of the diffuser is abnormal, and the faulty outdoor and indoor units need to be found, the touch screen and sub-controller can be connected with a communication line, and the manual mode can be turned on to test each outdoor and indoor unit separately, and the faulty outdoor and indoor units can be quickly located for replacement or repair. If it cannot be repaired and there is no replaceable outdoor and indoor unit on site, the faulty indoor unit can be marked with an "X" and no longer included in the list of operable indoor units. This will not affect the normal operation of other units, and can also ensure that the oxygen concentration and flow of the diffuser are normal, and the diffusion terminal can be used normally.

[0110] Consequences of not having this maintenance tool:

[0111] Without a touch screen as a maintenance tool, when an indoor unit fails, the specific faulty unit cannot be located quickly. The entire outdoor unit needs to be disassembled and each indoor unit needs to be taken out for fault detection separately. This not only increases the workload of maintenance personnel and greatly reduces maintenance efficiency, but also causes a bad experience for customers who are in urgent need of the product because they cannot continue to use the product for a longer period of time, which damages the product's image.

[0112] S200: Acquire the actual number of outdoor and indoor units required during operation. When the group-type diffuse oxygen generator is in operation, collect the total signal data of the indoor diffuse oxygen supply terminal, and determine the actual number of outdoor and indoor units required in the group-type diffuse oxygen generator according to the total signal data.

[0113] like Figure 3 As shown in the figure, each indoor diffuse oxygen supply terminal is connected to the sub-controller in the outdoor chassis control panel through a signal line. When each oxygen supply terminal is turned on, a certain current will flow through this terminal. The sub-controller can collect the sum of the current signals of all oxygen supply terminals in the turned-on state through the signal line, and then determine the number of indoor units that need to be turned on in the outdoor unit based on this current sum.

[0114] When each oxygen supply terminal is turned on, the current passing through the terminal can be manually adjusted. Since indoor oxygen supply terminals specifically include three types: ceiling terminals, nasal breathing terminals, and diffused oxygen control terminals, and the usage scenarios of oxygen supply terminals vary, such as offices, conference rooms, reception rooms, lounges, toilets, etc., when customers have specific requirements for the priority or importance of using different terminals in different scenarios, the signal current passing through each terminal can be set to different values. If the current signal value is large, the number of indoor units in the outdoor unit that is turned on will increase accordingly.

[0115] The terminal itself has a certain resistance value. When the terminal is turned on, that is, the internal circuit is connected, the current value flowing through the nasal terminal is fixed at 3.3mA, and the short-circuit current value flowing through the diffused oxygen control terminal is 27mA. By adding current adjustment accessories to each terminal to change the current value flowing through the terminal, a single terminal can be set to turn on 1, 2, 3, 4, 6, 8, or 10 internal units.

[0116] like Figure 3 As shown, the sub-controller is located on the side panel of the chassis cover of the outdoor unit of the group-type diffusion oxygen generator. It integrates PLC and AD conversion modules inside and is responsible for processing the collected terminal current signals, converting the analog current signals into numerical signals, and realizing the monitoring and control of the indoor oxygen supply terminals.

[0117] S300: Obtain the number of outdoor and indoor units that need to be increased or decreased, compare the actual required number of outdoor and indoor units with the total number of outdoor and indoor units currently in operation, and determine the number of outdoor and indoor units that need to be increased or decreased at this time.

[0118] like Figure 4 As shown, the outdoor indoor units in each outdoor unit are connected to the output point of the sub-controller through the control line, and the start and stop of each indoor unit are controlled by the output signal of the sub-controller. At the same time, the state of the sub-controller output signal can be used to determine whether each indoor unit is currently in the start or stop state. If the signal is ON, it means it is turned on, and if the signal is OFF, it means it is stopped.

[0119] The program counts the number of sub-controller output point signals that are ON, which is the total number of indoor units currently in the on state. When the customer opens or closes the indoor supply terminal during use, it will cause a change in the total signal current, that is, the actual number of indoor units required in the outdoor unit has also changed. Compare the actual number of indoor units required in the outdoor unit with the total number of indoor units currently in the on state. If the former is greater than the latter, more indoor units need to be turned on, and the number of units turned on is the difference between the two. If the former is less than the latter, the indoor units that have been turned on need to be turned off, and the number of units turned off is also the difference between the two.

[0120] S400: Calculate the longest and shortest running time of each outdoor and indoor unit, calculate the running time of each outdoor and indoor unit, and obtain the longest running time of the outdoor and indoor units in the running state and the shortest running time of the outdoor and indoor units in the stopped state through circular comparison.

[0121] Since the output signal of the sub-controller is ON, it means that the internal unit is in operation, and the output signal is OFF, it means that it is in stop state. Therefore, the duration of the ON state of each internal unit can be counted through the program, which is the operation time of each internal unit.

[0122] According to the round-robin method, the operating time of the first indoor unit in operation is designated as the one with the longest operating time among all indoor units. The operating time of each subsequent indoor unit in operation is cyclically taken and compared with the first indoor unit. If the operating time of the second indoor unit is longer, the second indoor unit is taken as the one with the longest operating time among all indoor units. This method can be used to continuously refresh and find the one with the longest operating time among all indoor units in operation.

[0123] Similarly, according to the round-robin method, the operating time of the first indoor unit in the stopped state is designated as the one with the shortest operating time among all indoor units, and the operating time of each subsequent indoor unit in the stopped state is cyclically taken and compared with this. If the operating time of the second indoor unit is shorter, the second indoor unit is taken as the one with the shortest operating time among the indoor units. This method can be used to continuously refresh and find the one with the shortest operating time among all indoor units in the stopped state.

[0124] S500: Increase or decrease the number of outdoor and indoor units turned on. If the number of outdoor and indoor units turned on needs to be increased, the outdoor and indoor units with the shortest running time in the stopped state will be automatically turned on. If the number of outdoor and indoor units turned on needs to be reduced, the outdoor and indoor units with the longest running time in the running state will be automatically turned off.

[0125] When the number of indoor units that need to be turned on in the outdoor unit is greater than the total number of indoor units that are currently turned on, that is, the number of indoor units that need to be turned on needs to be increased, turn on the indoor unit with the shortest running time among the indoor units that are in the stopped state. After turning on, if the number of indoor units that need to be turned on has not been reached, continue to turn on the indoor unit with the shortest running time among the remaining indoor units that are in the stopped state until the number of indoor units that need to be turned on is equal to the total number of indoor units that are currently turned on.

[0126] When the number of indoor units that need to be turned on in the outdoor unit is less than the total number of indoor units that are currently turned on, that is, the number of indoor units that need to be turned on needs to be reduced, the indoor unit with the longest running time among the indoor units in operation is turned off. If the number of indoor units that need to be reduced has not been reached after the shutdown, the indoor unit with the longest running time among the remaining indoor units in operation will continue to be turned off until the number of indoor units that need to be turned on is equal to the total number of indoor units that are currently turned on.

[0127] The following is an example of the actual application process of the above embodiment of the present invention.

[0128] For example, a customer ordered a diffuse oxygen generator with a rated flow rate of 40L / min (see Figure 5 ), which contains 8 internal units, used to supply oxygen to an indoor nasal breathing terminal and diffuse oxygen control terminal. The separate control method for these two terminals is: open the nasal breathing terminal alone, and the current value flowing through the nasal breathing terminal corresponds to opening one internal unit in the outdoor diffuse oxygen generator; open the diffuse oxygen control terminal alone, add a current regulating accessory in the line, so that the current value flowing through the terminal corresponds to opening 6 internal units in the outdoor diffuse oxygen generator.

[0129] As long as the internal units are running, the sub-controller will automatically count their running time and record the accumulation. Therefore, no matter whether the internal units are currently running or stopped, the running time ranking of all internal units can be obtained.

[0130] The following is the cumulative running time of the unit at a certain moment. Based on this, the following 7 terminal usage situations may occur next, see Table 1.

[0131]

[0132] Table 1

[0133] Case 1: If only the indoor breathing terminal is turned on, one outdoor unit will be started. According to the ranking result of the accumulated running time, indoor unit 8 will be started at this time;

[0134] Case 2: When the indoor nasal breathing terminal is turned on and one outdoor indoor unit is started, if the indoor diffuse oxygen control terminal is still turned on, 6 indoor units will continue to be started, that is, a total of 7 indoor units will be running. According to the cumulative running time sorting results, indoor unit 8 will be started first, followed by indoor units 4, 2, 1, 6, 3, and 5;

[0135] Case 3: If only the diffused oxygen control terminal is turned on, 6 outdoor and indoor units will be started. According to the cumulative running time sorting results, indoor units 8, 4, 2, 1, 6, and 3 will be started at this time;

[0136] Case 4: When the diffuse oxygen control terminal is turned on and 6 outdoor and indoor units are started, if the indoor oxygen terminal is still turned on, 1 indoor unit will continue to be started, that is, a total of 7 indoor units will be running. According to the cumulative running time sorting results, indoor units 8, 4, 2, 1, 6, and 3 will be started first, and then indoor unit 5 will continue to be started;

[0137] Case 5: If the indoor nasal breathing terminal and diffuse oxygen control terminal are turned on at the same time, 7 outdoor and indoor units will be started at the same time. According to the cumulative running time sorting results, indoor units 8, 4, 2, 1, 6, 3, and 5 will be started at this time;

[0138] Case 6: When the indoor nasal breathing terminal and diffuse oxygen control terminal are opened at the same time, and 7 outdoor indoor units are started, if the nasal breathing terminal is closed, 1 indoor unit will be shut down, that is, 6 indoor units will be running in total. According to the cumulative running time sorting results, indoor units 8, 4, 2, 1, 6, 3, 5 are started first, and then indoor unit 5 is shut down;

[0139] Case 7: When the indoor nasal breathing terminal and diffuse oxygen control terminal are turned on at the same time, and 7 outdoor indoor units are started, if the diffuse oxygen control terminal is turned off, 6 indoor units will be turned off, that is, a total of 1 indoor unit will be running. According to the cumulative running time sorting results, indoor units 8, 4, 2, 1, 6, 3, 5 are started first, and then indoor units 5, 3, 6, 1, 2, 4 are turned off.

[0140] In addition, the time of maintenance and inspection of the grouped diffusion oxygen generator with 6 outdoor and indoor units using the method of the present invention was recorded (recorded as Case 1), and the time of maintenance and inspection of the grouped diffusion oxygen generator with 6 outdoor and indoor units using the conventional method was recorded (recorded as Comparative Example 1), and the records are shown in Table 2.

[0141]

[0142] Table 2

[0143] It can be seen from Table 2 that in a comparison of outdoor maintenance and inspection of a grouped diffusion oxygen generator with 6 outdoor and indoor units at an altitude of 4000m and a temperature of -10°C to 15°C, the average inspection time for each indoor unit using the method of the present invention is about 3 minutes, while the comparative example 1 using the conventional method takes about 5 minutes. Therefore, the present invention can quickly complete the maintenance work of the outdoor and indoor units located outdoors, saving time.

[0144] Next, the usage time of each indoor unit of the grouped diffusion oxygen generator with 6 outdoor and indoor units using the electrical sub-control method of the present invention after 6 days of use is recorded (recorded as Case 2), and the usage time of each indoor unit of the grouped diffusion oxygen generator with 6 outdoor and indoor units using the conventional method (without sub-control) after 6 days of use is recorded (recorded as Comparative Example 2), and the records are shown in Table 3.

[0145]

[0146] Table 3

[0147] As can be seen from Table 3, when the sub-control of the present invention is adopted, the customer starts the machine for the first time for 8 hours, and only the internal unit 1 needs to work; the customer starts the machine for the second time for 8 hours, and only the internal unit 2 needs to work; the customer starts the machine for the third time for 8 hours, and only the internal unit 3 needs to work; the customer starts the machine for the fourth time for 8 hours, and only the internal unit 4 needs to work; the customer starts the machine for the fifth time for 8 hours, and only the internal unit 5 needs to work; the customer starts the machine for the sixth time for 8 hours, and only the internal unit 6 needs to work. Therefore, the average use time of each internal unit after 6 days of use is 8 hours. When the sub-control is not adopted, see Comparative Example 2, each time the customer starts the machine for 8 hours, all 6 internal units will be turned on and work together, and the average use time of each internal unit after 6 days of use is 48 hours. Therefore, the use of sub-control can balance the use time of each internal unit according to actual needs, greatly increasing the use efficiency of the internal units.

[0148] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for electrical sub-control of a grouped diffusion oxygen generator, characterized in that: The electrical sub-control method is used for the electrical sub-control of a group-type diffuse oxygen generator, the group-type diffuse oxygen generator includes a group-type diffuse oxygen generator electrical sub-control system, the group-type diffuse oxygen generator includes a sub-controller and multiple diffuse oxygen supply terminals, multiple outdoor and indoor units, multiple outdoor and indoor units are arranged in an outdoor chassis, the number of the diffuse oxygen supply terminals is multiple, and the multiple diffuse oxygen supply terminals are respectively connected to the oxygen outlets of the outdoor and indoor units for inputting indoor oxygen supply on-off control information, the electrical sub-control system includes a sub-controller and a debugging and maintenance terminal, the sub-controller is connected to the diffuse oxygen supply terminal through a signal line and to the outdoor and indoor units through a control line, the debugging and maintenance terminal is connected to the sub-controller using a communication line during debugging / maintenance, and the debugging and maintenance terminal is a touch screen; the electrical sub-control method includes: The debugging and maintenance terminal is used to debug / maintain the group-type diffusion oxygen generator. The debugging and maintenance terminal is provided with a mode selection area, an internal unit operation selection area, and a signal and demand display area. The debugging and maintenance terminal is connected to the sub-controller. The mode selection area and the internal unit operation selection area are selected by touching, and the switching between the manual mode and the automatic mode in the mode selection area is expressed by different icons or different colors. The operable and inoperable status displays of the outdoor and indoor units in the internal unit operation selection area are expressed by different icons or different colors. The manual mode or the automatic mode is switched in the mode selection area according to the demand. When the manual mode is selected, the operator checks the operation status of each outdoor and indoor unit respectively, and manually selects the outdoor and indoor units with faults as inoperable. , manually select the normally operating outdoor and indoor units as operable. When the automatic mode is selected, the control program in the grouped diffusion oxygen generator automatically selects operable and inoperable according to the operating conditions of each outdoor and indoor unit. The sub-controller transmits the operating signals of each outdoor and indoor unit to the debugging and maintenance terminal, and displays the operating conditions of the outdoor and indoor units one by one in the indoor unit operation selection area, and displays the total signal data of the diffusion oxygen supply terminal and the actual number of outdoor and indoor units required to be turned on in the signal and demand display area. Select whether the corresponding outdoor and indoor units of each group are operable according to the operating conditions of the indoor units; configure the grouped diffusion oxygen generators of various specifications and models with different numbers of outdoor and indoor units through the debugging and maintenance terminal, and write the configuration information into the control program of each grouped diffusion oxygen generator; The actual number of outdoor and indoor units required during operation is obtained, and the diffusion oxygen supply terminals are configured to be respectively located in different rooms and the equivalent impedance of the diffusion oxygen supply terminals is set inversely according to the indoor space. When the grouped diffusion oxygen concentrator is in operation, the sub-controller collects the sum of the current signals of all the diffusion oxygen supply terminals in operation through the signal line, and the sum of the current signals of all the diffusion oxygen supply terminals in operation is used as the total signal data, and the actual number of outdoor and indoor units required in the grouped diffusion oxygen concentrator is determined according to the total signal data; Obtain the number of outdoor and indoor units that need to be increased or decreased. When the user opens or closes the diffusion oxygen supply terminal or adjusts the size of the diffusion oxygen supply terminal during the use of the grouped diffusion oxygen concentrator, the total signal data of the indoor diffusion oxygen supply terminal is collected and changed. The actual number of outdoor and indoor units required is compared with the total number of outdoor and indoor units currently in operation to determine the number of outdoor and indoor units that need to be increased or decreased at this time. Calculate the longest and shortest running time of each outdoor and indoor unit, calculate the running time of each outdoor and indoor unit, designate the running time of the first outdoor and indoor unit in operation as the one with the longest running time among all outdoor and indoor units according to the round-robin method, and compare the running time of each subsequent outdoor and indoor unit in operation with the running time of the first outdoor and indoor unit in operation, and continuously refresh to find the one with the longest running time among all outdoor and indoor units in operation; According to the cyclic method, the running time of the first outdoor indoor unit in the stopped state is designated as the one with the shortest running time among all outdoor indoor units, and the running time of each subsequent indoor unit in the stopped state is cyclically taken and compared with this, and the running time of all outdoor indoor units in the stopped state is continuously refreshed to find the one with the shortest running time among all outdoor indoor units in the stopped state; Increase or decrease the number of open outdoor and indoor units. By counting the operating time of each outdoor and indoor unit in the grouped diffusion oxygen concentrator outdoor unit, it is used as the basis for increasing or decreasing the number of open outdoor and indoor units. If it is necessary to increase the number of open outdoor and indoor units, the outdoor and indoor units with the shortest operating time in the stopped state will be automatically turned on. If it is necessary to reduce the number of open outdoor and indoor units, the outdoor and indoor units with the longest operating time in the running state will be automatically turned off to balance the use time of each outdoor and indoor unit, so that the use cycle of each component in each outdoor and indoor unit remains consistent.

2. The electrical sub-control method for a group-type diffusion oxygen generator according to claim 1 is characterized in that: A plurality of the outdoor and indoor units are arranged in an outdoor chassis, and the sub-controller is located on the side panel of the outdoor chassis. The sub-controller integrates a PLC processor and an AD conversion module. The AD conversion module converts the analog current signal obtained through the signal line transmission into a numerical signal, and the PLC processor processes the collected numerical signal to realize the monitoring and control of the indoor diffuse oxygen supply terminal.

3. The electrical sub-control method of the grouped diffusion oxygen generator according to claim 1 is characterized in that: In the process of obtaining the number of outdoor and indoor units that need to be increased or decreased, each outdoor and indoor unit is connected to the output point of the sub-controller through a control line, and the start and stop of each operable outdoor and indoor unit are controlled by the output signal of the sub-controller. At the same time, the state of the sub-controller output signal can be used to determine whether each outdoor and indoor unit is currently in an on or off state. If the signal is ON, it means it is on, and if the signal is OFF, it means it is stopped. The control program counts the number of sub-controller output point signals that are ON, which is the total number of outdoor and indoor units currently in the on state; when the user uses When the diffusion oxygen supply terminal is opened or closed or the size of the diffusion oxygen supply terminal is adjusted during the process of the grouped diffusion oxygen concentrator, the total signal data of the indoor diffusion oxygen supply terminal is collected and changes, and the actual number of outdoor and indoor units required in the grouped diffusion oxygen concentrator also changes accordingly; the actual number of outdoor and indoor units required is compared with the total number of outdoor and indoor units currently in the turned-on state. If the former is greater than the latter, more outdoor and indoor units need to be turned on, and the number of turned-on units is the difference between the two. If the former is less than the latter, the outdoor and indoor units that have been turned on need to be closed, and the number of closed units is also the difference between the two.

4. The electrical sub-control method of the grouped diffusion oxygen generator according to claim 1 is characterized in that: The process of increasing or decreasing the number of outdoor and indoor units to be turned on includes the following: When the number of outdoor indoor units that need to be turned on is greater than the total number of outdoor indoor units currently in the turned-on state, that is, the number of indoor units that need to be turned on needs to be increased, the outdoor indoor unit with the shortest running time among the outdoor indoor units that are in the stopped state is turned on. If the number of outdoor indoor units that need to be turned on has not been reached after turning on, the outdoor indoor unit with the shortest running time among the remaining outdoor indoor units that are in the stopped state continues to be turned on until the number of outdoor indoor units that need to be turned on is equal to the total number of outdoor indoor units that are currently in the turned-on state; When the number of outdoor indoor units that need to be turned on is less than the total number of outdoor indoor units that are currently turned on, that is, the number of outdoor indoor units that need to be turned on needs to be reduced, turn off the outdoor indoor unit with the longest running time among the outdoor indoor units that are in operation. If the number of outdoor indoor units that need to be reduced has not been reached after turning off, continue to turn off the outdoor indoor unit with the longest running time among the remaining outdoor indoor units in operation until the number of outdoor indoor units that need to be turned on is equal to the total number of outdoor indoor units that are currently turned on.

5. An electrical sub-control system for a group-type diffusion oxygen generator, used for electrical sub-control of a group-type diffusion oxygen generator by the electrical sub-control method according to any one of claims 1 to 4, characterized in that: The electrical sub-control system includes a sub-controller, a diffuse oxygen supply terminal, outdoor and indoor units, and a debugging and maintenance terminal; wherein, The sub-controller is connected to the diffuse oxygen supply terminal via a signal line and is connected to the outdoor and indoor units via a control line; There are multiple diffuse oxygen supply terminals, which are respectively connected to the oxygen outlets of the outdoor and indoor units for inputting on-off control information of indoor oxygen supply; There are multiple outdoor and indoor units, and multiple outdoor and indoor units are arranged in one outdoor machine box; The debugging and maintenance terminal is connected to the sub-controller using a communication line during debugging / maintenance; The electrical sub-control system is configured as follows: using the debugging and maintenance terminal to debug / maintain the group-type diffusion oxygen generator, and selecting whether the corresponding outdoor and indoor units of each group can be operated according to the operation status of the indoor units; the sub-controller obtains the actual required number of outdoor and indoor units during operation, obtains the number of outdoor and indoor units that need to be increased or decreased, and calculates the longest and shortest operating time of each outdoor and indoor unit, and then the sub-controller controls to increase or decrease the number of outdoor and indoor units that are turned on.

6. The electrical sub-control system of the group-type diffusion oxygen generator according to claim 5 is characterized in that: The diffuse oxygen supply terminals are respectively located in different rooms and the equivalent impedance of the diffuse oxygen supply terminals is set in inverse proportion to the indoor space.

7. A grouped diffusion oxygen concentrator, characterized in that: The grouped diffuse oxygen concentrator comprises the electrical sub-control system of the grouped diffuse oxygen concentrator as claimed in claim 5 or 6, wherein the grouped diffuse oxygen concentrator comprises a sub-controller, an outdoor chassis, a plurality of diffuse oxygen supply terminals, and a plurality of outdoor and indoor units, wherein the plurality of diffuse oxygen supply terminals are distributed indoors, and the plurality of outdoor and indoor units are centrally arranged in the outdoor chassis, wherein the sub-controller is located on the side panel of the outdoor chassis, and wherein the sub-controller integrates a PLC processor and an AD conversion module.

8. A readable storage medium, characterized in that: The readable storage medium stores a control program, and when the control program is executed by the sub-controller, the sub-controller executes the steps of the method according to any one of claims 1 to 4.

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