JP5455738B2 - Air conditioning control device and air conditioning control program - Google Patents

Description

  The present invention relates to an air-conditioning control apparatus, and more particularly to an air-conditioning control apparatus and an air-conditioning control program that make it easy to develop a derivative model and can cope with a control execution change in local adjustment.

  In recent years, with the improvement in performance of microcomputers and the development of software development technology, it has become possible to install sophisticated and complex functions in air conditioners, and control programs for air conditioners have become larger and more complicated.

  On the other hand, in order to increase the market competitiveness of air conditioner products, it is extremely important to improve performance and comfort. For this reason, it is required not only to control the air-conditioning function in a standard environment, but also to exhibit stable performance even in a severe environment such as high temperature and high humidity outside the rating.

  In order to cope with such a special environment, it is necessary to easily change the program according to the request and to select a control function. In general, the structure of a program becomes complex as it is repeatedly changed, and it tends to become increasingly difficult to add new functions or change specifications of existing functions. For this reason, a program that improves the efficiency of derivative model development must be easy to add or change functions, and even if functions are added or changed, the program must be complicated and not easily changed. .

  As a technique for facilitating program change, Patent Document 1 discloses a method using two storage areas. The invention described in Patent Document 1 uses two ROMs and one RAM, a program group having standard functions in one ROM, a program group whose specifications are changed in the other ROM, and a program to be written in the address table. Each change is recorded and the address table of the application program is created in the RAM, so that the specification can be easily changed. Further, Patent Document 2 discloses a method for responding to a change using a flag. In the invention described in Patent Document 2, when a control function module corresponding to the control mode of various equipment is set in advance and a predetermined control function module is selected according to the control mode and a control operation is performed, the control function module By setting a flag indicating whether the function is valid or invalid, the function can be selectively implemented.

JP 04-294183 A JP 05-011815 A

  However, the invention described in Patent Document 1 detects a specific installation environment state, and for a specific method and an appropriate program structure for improving the efficiency of adding a control function to cope with the situation. Not disclosed. For this reason, it is insufficient in the point of maintaining the program structure which can implement | achieve the change according to an installation condition.

  Further, the invention described in Patent Document 2 requires an external input means for setting the flag of the control function module, and cannot provide an external input means like an air conditioning control program. Application is difficult.

  The present invention has been made in view of the above, and an air conditioning control device and an air conditioning control program that can dynamically add or change functions for dealing with a special environment and avoid complicated control programs. The purpose is to obtain.

  In order to solve the above-described problems and achieve the object, the present invention is an air conditioning control device that controls an air conditioning device including a plurality of actuators, and a device state detection unit that detects an operation state of the entire device, Actuator state detection means for detecting the state of each actuator, environmental state detection means for detecting an environmental state outside the air conditioner, a program for controlling the operation state, the combination of the actuator state and the environmental state, and the operation of the actuator The control component table associated with the control component, and the control component table is referred to based on the detection results of the apparatus state detection unit, the actuator state detection unit, and the environmental state detection unit, and is used to control each of the plurality of actuators. And a control component selecting means for determining the control component.

  According to the present invention, since the addition or change of the designed control part configuration table can be incorporated in advance, when it is necessary to cope with a special situation in equipment installation at the stage of on-site adjustment test or introduction work, It has the effect of being able to cope with the trouble of taking the table back to the factory and making a new model.

FIG. 1 is a diagram showing a configuration of an air conditioning apparatus including an air conditioning control apparatus according to an embodiment of the present invention. FIG. 2 is a flowchart showing the flow of the air conditioning control process of the air conditioning control program. FIG. 3 is a diagram illustrating a configuration example of an operation command. FIG. 4 is a diagram illustrating a configuration example of the operation state determination unit. FIG. 5 is a flowchart showing a flow of determination processing of the driving state determination unit. FIG. 6 is a diagram illustrating a configuration example of a state transition table included in the driving state transition determination unit. FIG. 7 is a diagram illustrating a configuration example of the actuator state determination unit. FIG. 8 is a flowchart showing a flow of determination processing of the actuator state determination unit. FIG. 9 is a diagram illustrating a configuration example of a state transition table provided in the actuator state transition determination unit. FIG. 10 is a diagram illustrating a configuration example of the option state determination table. FIG. 11 is a flowchart showing the flow of selection and execution processing of the control component selection / execution unit. FIG. 12 is a diagram illustrating a configuration example of a control component configuration table. FIG. 13 is a diagram illustrating an actuator control component address table for a compressor as an example.

  Embodiments of an air conditioning control device and an air conditioning control program according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment.
FIG. 1 is a diagram showing a configuration of an air conditioning apparatus including an air conditioning control apparatus according to an embodiment of the present invention. The air conditioner 1 includes an operation command unit 10, an air conditioning control device 20, a compressor 30, an expansion valve 40, a fan 50, a four-way valve 60, and an option state detection unit 70.

  The operation command unit 10 outputs an operation command such as a requested operation mode and a set temperature to the air conditioning control device 20 based on the operation of the air conditioner user. The operation command unit 10 includes a control panel 11 and a remote controller 12. The user of the air conditioner performs operations such as changing the required operation mode and set temperature via the control panel 11 or the remote controller 12 provided in the air conditioner 1.

  The air conditioning control device 20 controls the operation of the actuators (compressor 30, expansion valve 40, fan 50, four-way valve 60) of the air conditioning device 1 based on the operation command from the operation command unit 10, and the requested operation mode. And achieve the set temperature. The air conditioning control device 20 includes a control component configuration table 21 and an air conditioning control program 200. The air conditioning control program 200 is executed by a computer that controls the air conditioning control device 20.

  The option state detection unit 70 is a functional unit that detects information on the installation environment of the air conditioner 1. Here, the temperature and humidity of the atmosphere in which the apparatus is installed are measured by the temperature sensor 71 and the humidity sensor 72. The installation environment detected by the option state detection unit 70 is not limited to temperature and humidity, and may include an optical sensor.

  The control component configuration table 21 represents a list of IDs of control program components (hereinafter also referred to as “control components”) that can be optionally applied in the air conditioner 1, and is physically a nonvolatile memory as an electronic data file. Or stored on a recording medium such as a hard disk. The component component can create the control component configuration table 21 using the control component configuration information creation unit 2. The control component configuration information creation unit 2 is a program and device for creating and editing the contents of the control component configuration table 21 as long as it can output the control component configuration table 21 in the form of an electronic data file. It may be something like a text editor that runs on a computer. By providing the control component configuration information creation unit 2, it is possible to easily cope with a change in specifications. The air-conditioning control program 200 is a program stored in a memory included in the air-conditioning control device 20, and controls the operation of the actuator based on the operation command from the operation command unit 10, and the operation mode and setting commanded by the air-conditioning device 1. Allows operation at temperature.

  The air conditioning control program 200 includes an operation state determination unit 210 that detects the operation state of the entire apparatus, an actuator state determination unit 220 that detects the operation state of each actuator, an option state determination unit 230, a control component selection / execution unit 240, and an actuator. A control component group (compression valve control component group 250, expansion valve control component group 260, fan control component group 270, four-way valve control component group 280) is provided. The actuator control component group is a group of control components that control individual actuators such as the compressor 30, the expansion valve 40, the fan 50, and the four-way valve 60 according to their states.

  The compressor 30 adjusts the degree of compression of the refrigerant by operating based on control by executing control components included in the compressor control component group 250. The expansion valve 40 adjusts the amount of refrigerant flowing through the piping by changing the opening of the valve based on the control from the expansion valve control component group 260. The fan 50 adjusts the temperature of the refrigerant by controlling the rotation of the fan installed in the heat exchanger based on the control by executing the control components included in the fan control component group 270. The four-way valve 60 switches the direction in which the refrigerant flows based on control by executing control components included in the four-way valve control component group 280.

  Next, the air conditioning control process of the air conditioning control program 200 in the air conditioner 1 will be described. FIG. 2 is a flowchart showing the flow of the air conditioning control process of the air conditioning control program 200. First, in the air conditioning control program 200, the operation state determination unit 210 acquires an operation command issued from the operation command unit 10 (step S1). FIG. 3 is a diagram illustrating a configuration example of an operation command. The operation command is data including values indicating the operation mode and the set temperature. Here, as an example, an operation command in which the operation mode is “normal cooling” and the set temperature is “25 ° C.” is illustrated. In the present embodiment, control processing for the operation mode among the operation commands will be described.

  The driving state determination unit 210 determines the driving state based on the received driving command (step S2). Here, the determination process of the driving state determination unit 210 will be described in detail. FIG. 4 is a diagram illustrating a configuration example of the driving state determination unit 210. The driving state determination unit 210 includes a driving state event detection unit 211, a driving state transition determination unit 212, and a driving state transition execution unit 213. The driving state event detection unit 211 detects a driving command from the driving command unit 10 as an event. The driving state transition determination unit 212 determines the state transition of the driving state. The driving state transition execution unit 213 performs a driving state transition process based on the determination result of the state transition.

  FIG. 5 is a flowchart showing a flow of determination processing of the driving state determination unit 210. First, the driving state event detection unit 211 detects a driving command from the driving command unit 10 as an event (step S11). For example, when the operation mode of the operation command is “normal cooling”, “normal cooling request” is detected as an event. The driving state event detection unit 211 outputs the detected event to the driving state transition determination unit 212. Next, the driving state transition determination unit 212 refers to the state transition table and determines the state transition based on the input event (step S12). FIG. 6 is a diagram illustrating a configuration example of a state transition table included in the driving state transition determination unit 212. The state transition table shows a transition operation of the operation state when an event occurs with respect to the current operation state. “→ <Operating state name>” indicates a transition to the operating state represented by <Operating state name>. For example, when “normal cooling request” is input as an event when the operation state is “stopping”, the operation state transitions from “stopping” to “normal cooling operation”.

  As a result of the determination, when there is a state transition (step S12 / Yes), the operation state transition execution unit 213 executes the operation state transition (step S13). Specifically, in the state transition table of FIG. 6, it corresponds to an item described by “→ <operation state name>” other than “−”, and is described by “→ <operation state name>”. Transition to the operating state. In this case, the operation state transition execution unit 213 stores and saves the operation state of the transition destination as the current operation state as the operation state transition process. On the other hand, if there is no state transition as a result of the determination (step S12 / No), the process of step S13 is skipped and the determination process is terminated. Specifically, the item indicated by “-” in the state transition table of FIG. In this case, the driving state transition execution unit 213 does not perform the state transition process for the event input from the driving state event detection unit 211 to the driving state transition determination unit 212.

  The operation state transition execution unit 213 outputs the operation state after the transition to the actuator state determination unit 220 and the operation state transition determination unit 212. When there is no state transition in the operation state, the operation state transition execution unit 213 outputs to the actuator state determination unit 220 completion of actuator control processing such as completion of stop control or completion of start control.

  After the above-described determination processing (step S2 (steps S11 to S13)) by the driving state determination unit 210, the actuator state determination unit 220 determines the actuator state for each actuator based on the driving state input from the driving state determination unit 210. Is determined (step S3).

  The determination process of the actuator state determination unit 220 will be described in detail. FIG. 7 is a diagram illustrating a configuration example of the actuator state determination unit 220. The actuator state determination unit 220 includes an actuator state event detection unit 221, an actuator state transition determination unit 222, and an actuator state transition execution unit 223. The actuator state event determination unit 221 detects a change in the operation state from the operation state determination unit 210 or the completion of the actuator control process as an event. The actuator state transition determination unit 222 determines the state transition of the actuator state. The actuator state transition execution unit 223 performs actuator state transition processing based on the state transition determination result.

  FIG. 8 is a flowchart showing a flow of determination processing of the actuator state determination unit 220. The actuator state determination unit 220 will be described with reference to an example in which the actuator state event detection unit 221 selects the compressor 30 in order to perform determination for each actuator (step S21). After selecting the actuator, the actuator state event detection unit 221 detects, as an event, a change in the operation state or the completion of the control process of the actuator (compressor 30) based on the operation state input from the operation state determination unit 210. (Step S22). For example, if the operation state input from the operation state determination unit 210 is “normal cooling operation” and the operation state at the previous input is “stopped”, an event “operation state is stopped to normal cooling” "During operation, change to normal heating operation, cooling rated operation, or heating rated operation" is detected. The actuator state event detection unit 221 outputs the detected event to the actuator state transition determination unit 222.

  Next, the actuator state transition determination unit 222 refers to the state transition table and determines the state transition based on the input event (step S23). FIG. 9 is a diagram illustrating a configuration example of a state transition table provided in the actuator state transition determination unit 222. The state transition table shows the transition operation of the actuator state when an event occurs with respect to the current actuator state. “→ <actuator state name>” indicates transition to an actuator state represented by <actuator state name>. For example, when the actuator state is "stopped", the event "change from operating state stopped to normal cooling operation, normal heating operation, cooling rated operation, or heating rated operation" was input In this case, the actuator state represents a transition from the “stop state” to “during start control”.

  As a result of the determination, when there is a state transition (step S23 / Yes), the actuator state transition execution unit 223 executes the actuator state transition (step S24). Specifically, in the state transition table of FIG. 9, it corresponds to an item described by “→ <actuator state name>” other than “−”, and is described by “→ <actuator state name>”. Transition to the current actuator state. In this case, the actuator state transition execution unit 223 stores and saves the actuator state. If there is no state transition as a result of the determination (step S23 / No), the process of step S24 is skipped. Specifically, the item described with “-” in the state transition table of FIG. In this case, state transition processing is not performed for the input event.

  The actuator state transition execution unit 223 outputs the actuator state after the transition to the control component selection / execution unit 240 and the actuator state transition determination unit 222. At this stage, since the determination process for one actuator (compressor 30) is completed, the process returns to step S21 (step S25), and the state transition is determined for another actuator. Thereafter, the processes in steps S22 to S24 are repeatedly executed until the state transition of the four actuators is determined.

  After the determination process (step S3 (steps S21 to S25)) by the actuator state determination unit 220, the option state determination unit 230 determines the option state acquired from the option state detection unit 70 (step S4).

  The determination process of the option state determination unit 230 will be described in detail. The option state determination unit 230 acquires the state of the environment that is external to the air conditioning control program 200 such as the installation location temperature and humidity detected by the option state detection unit 70. Then, an option state (whether or not it is installed in a special environment) is determined using the option state determination table. FIG. 10 is a diagram illustrating a configuration example of the option state determination table. For example, when the detected temperature is a high temperature outside the rating and the humidity is a high humidity outside the rating, it is determined as “option 1” (option ID “OP1”). When at least one of temperature and humidity is within the rated range, it is determined that the device is not in an optional state (not installed in a special environment) (referred to as option ID “NOP” for convenience). The option state determination unit 230 outputs the determined option state to the control component selection / execution unit 240.

  After the determination process (step S4) by the option state determination unit 230, the control component selection / execution unit 240 operates from the operation state from the operation state determination unit 210, the actuator state from the actuator state determination unit 220, and the option state determination unit 230. The control parts corresponding to the actuators are selected based on the option IDs of the actuators, and the control parts (compressor control parts group 250, expansion valve control parts group 260, fan control parts group 270, four-way valve control parts group 280 of each actuator are selected. ) For specifying a control component to be executed (step S5).

  The selection and execution processing of the control component selection / execution unit 240 will be described in detail. FIG. 11 is a flowchart showing a flow of selection and execution processing of the control component selection / execution unit 240. The control component selection / execution unit 240 acquires the operation state from the operation state determination unit 210 and the option state from the option state determination unit 230, respectively (step S301). The control component selection / execution unit 240 performs determination for each actuator (step S302), and here, a case where the compressor 30 is selected will be described as an example. After selecting the actuator, the control component selection / execution unit 240 acquires the actuator state corresponding to the selected actuator (compressor 30) from the actuator state determination unit 220 (step S303). Next, the control component selection / execution unit 240 refers to the control component configuration table 21 and acquires a corresponding control component code based on the operation state and actuator state acquired for the actuator (compressor 30) (step S304). ).

  FIG. 12 is a diagram illustrating a configuration example of the control component configuration table 21. The control component configuration table 21 is provided as a table for each actuator, and FIG. 12 is a control component configuration table for the compressor 30 as an example. The control component code corresponding to the column where the operation state specified by the row and the actuator state specified by the column intersect is shown. For example, when the operation state is “stopped” and the actuator state of the compressor 30 is “steady control in progress”, “OP1_COOLPROP_COOLFUZZY” is acquired as the control component code. Here, the first character string represents an option ID, the second character string represents a normally designated control component ID, and the third character string represents an option designated control component ID.

  Next, the control component selection / execution unit 240 determines whether or not the option ID acquired from the option state determination unit 230 is included in the acquired control component code (step S305).

  As a result of the determination, if an option ID is included (step S305 / Yes), an option-specified control component ID is acquired from the control component code. For example, if it is “OP1_COOLPROP_COLLFUZZY”, the control part ID (“COOLFUZZY”) is acquired because the first character string has an option ID (“OP1”) (step S306). If the option ID is not included as a result of the determination (step S305 / No), the normally designated control component ID is acquired from the control component code. For example, if “OP1_COOLPROP_COOLFUZZY”, the normally designated control component ID (“COOLPROP”) is acquired from the character string (step S307).

  Next, the control component selection / execution unit 240 refers to the actuator control component address table 290 to determine the address of the control component corresponding to the acquired control component code (step S308). FIG. 13 is a diagram illustrating an actuator control component address table for the compressor 30 as an example. When the acquired control component ID is “COOLPROP”, the control component selection / execution unit 240 calculates “cmp_cool_prop_ctrl” as the address of the control component.

  Next, the control component selection / execution unit 240 performs a process of designating a control component to be executed for the compressor control component group 250 using the determined control component address (step S309). The compressor control component group 250 executes the specified control component to control the operation of the compressor 30, thereby realizing the operation command requested by the air conditioner user. Here, in step S309, since the control component selection and execution processing for one actuator (compressor 30) has been completed, the process returns to step S302 (step S310), and control component selection and execution processing for another actuator is performed. Do. Thereafter, the processes in steps S303 to S309 are repeatedly executed until control component selection and execution processes are performed for the four actuators.

  As described above, in the present embodiment, in the air conditioning control unit, the control unit that controls the actuator includes a program corresponding to the control method as a control component. The air conditioning control unit selects and executes the control component by referring to the control component configuration table based on the operation state, actuator state, and option state of the air conditioner. The control unit of each actuator controls the actuator based on the control component. It was decided to. By simply changing the contents of the control component configuration table, not only can the functions of the program be added or changed easily when developing a derivative model, but also the installation status of the air conditioner detected at the stage of local adjustment is supported. Control parts can be selected and executed. In addition, the addition or change of functions does not complicate the program and can prevent a decrease in development efficiency.

  As described above, the air-conditioning control apparatus air-conditioning control program according to the present invention is useful for controlling the air-conditioning apparatus, and is particularly suitable for development corresponding to various application environments.

DESCRIPTION OF SYMBOLS 1 Air conditioner 2 Control part structure table preparation part 10 Operation command part 11 Control panel 12 Remote control 20 Air conditioning control apparatus 21 Control part structure table 30 Compressor 40 Expansion valve 50 Fan 60 Four-way valve 70 Option state detection part
200 Air-conditioning control program 210 Operation state determination unit 220 Actuator state determination unit 230 Option state determination unit 240 Control component selection / execution unit 250 Compressor control component group 260 Expansion valve control component group 270 Fan control component group 280 Four-way valve control component group 290 Actuator control parts address table

Claims (5)

An air conditioning control device for controlling an air conditioning device including a plurality of actuators,
An apparatus state detecting means for detecting an operation state of the entire apparatus;
Actuator state detecting means for detecting the state of each actuator;
Environmental condition detection means for detecting an environmental condition outside the air conditioner;
A control component table in which a combination of the operation state, the actuator state and the environmental state is associated with a control component as a program for controlling the operation of the actuator;
Control component selection for determining a control component to be used for control of each of the plurality of actuators with reference to the control component table based on detection results of the device state detection unit, the actuator state detection unit, and the environmental state detection unit And an air conditioning control device.   The air conditioning control device according to claim 1, comprising a plurality of the control component tables corresponding to each of the plurality of actuators. Each actuator is provided with an address table that associates the control component with an address where the control component is stored,
The air conditioning control device according to claim 1, wherein the control component selecting unit acquires a control component determined to be used for controlling the actuator with reference to the address table.   The air conditioning control device according to any one of claims 1 to 3, further comprising a user interface for registering the control component table. A plurality of actuators, an environmental state detection means for detecting an external environmental state, an operation state of the entire apparatus, a combination of the actuator state and the environmental state, and a control component as a program for controlling the operation of the actuator In a computer that controls an air conditioner that includes an associated control component table,
An apparatus state detection process for detecting the operation state;
An actuator state detection process for detecting the state of each actuator;
A control component used for controlling each of the plurality of actuators by referring to the control component table based on the detection result in the device state detection process, the actuator state detection process, and the environmental state detected by the environmental state detection means An air conditioning control program characterized by causing a control component selection process to determine

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