CN111397084A - Air conditioner state monitoring device, method and system - Google Patents
Air conditioner state monitoring device, method and system Download PDFInfo
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- CN111397084A CN111397084A CN202010248161.8A CN202010248161A CN111397084A CN 111397084 A CN111397084 A CN 111397084A CN 202010248161 A CN202010248161 A CN 202010248161A CN 111397084 A CN111397084 A CN 111397084A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
Abstract
The invention provides an air conditioner state monitoring device, method and system; the device comprises a state feedback module, a controller and an alarm module which are connected in sequence; the state feedback module is connected with the air conditioner; the state feedback module is used for acquiring the current state parameters of the air conditioner and generating an operation state signal of the air conditioner; the controller is used for sending a trigger signal to the alarm module according to the running state signal so as to enable the alarm module to generate an alarm signal. The invention can timely detect the working state of the air conditioner in the working environment of the equipment, thereby ensuring the working efficiency of the equipment and preventing safety accidents.
Description
Technical Field
The invention relates to the technical field of industrial equipment, in particular to an air conditioner state monitoring device, method and system.
Background
In the related art, some indoor environments, such as electric rooms, in which devices having high requirements on the ambient temperature are built, air conditioners are generally configured to regulate the indoor temperature so that electric components of the indoor devices operate stably and reliably. However, when the air conditioner fails, the temperature of the electric room continuously rises along with the operation of the equipment, which easily causes the equipment to be damaged, affects the operation efficiency of the equipment, and even causes safety accidents.
Disclosure of Invention
In view of the above, the present invention provides an air conditioner state monitoring apparatus, an air conditioner state monitoring method, and an air conditioner state monitoring system, and an air conditioner state monitoring method, which are used for detecting the working state of an air conditioner in the working environment of a device, so as to ensure the working efficiency of the device and prevent safety accidents.
In a first aspect, an embodiment of the present invention provides an air conditioner state monitoring device, where the device includes a state feedback module, a controller, and an alarm module, which are connected in sequence; the state feedback module is connected with the air conditioner; the state feedback module is used for acquiring the current state parameters of the air conditioner and generating an operation state signal of the air conditioner; the controller is used for sending a trigger signal to the alarm module according to the running state signal so as to enable the alarm module to generate an alarm signal.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the operation status signal includes an operation signal and/or a fault feedback signal; the controller is used for sending a trigger signal to the alarm module when the running state signal comprises a fault feedback signal so as to enable the alarm module to generate an alarm signal; the controller is also used for sending a trigger signal to the alarm module when the running state signal sent by the state feedback module is not received within the preset time, so that the alarm module generates an alarm signal.
With reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where the apparatus further includes a display module; the state feedback module comprises a plurality of modules; each state feedback module is connected with the corresponding air conditioner; the controller prestores the corresponding relation between the state feedback module and the air conditioner; the controller is also used for generating alarm information according to the corresponding relation and a state feedback module for sending the running state signal; the alarm information comprises an identifier of the air conditioner corresponding to the state feedback module; the display module is used for displaying alarm information.
With reference to the first possible implementation manner of the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, wherein the state feedback module includes a first relay and a second relay; the first relay and the second relay are respectively connected with the controller; the current state parameters comprise operation parameters and fault parameters; the operating parameters include on-stream or off-stream; the first relay is used for acquiring operation parameters and outputting an operation signal of the air conditioner when the operation parameters are in operation; the second relay is used for collecting fault parameters and outputting fault feedback signals of the air conditioner.
With reference to the third possible implementation manner of the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, wherein the first relay includes a first dry contact; the first dry contact is connected with the controller through a cable; the second relay includes a second dry contact; the second dry contact is connected with the controller through a cable.
With reference to the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, where the alarm module includes an audible and visual alarm; the audible and visual alarm is used for generating an acoustic alarm signal and/or an optical alarm signal.
With reference to the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, where the controller includes a programmable logic controller.
In a second aspect, an embodiment of the present invention further provides an air conditioner status monitoring method, where the method is applied to the air conditioner status monitoring apparatus described above; the method comprises the following steps: the state feedback module acquires current state parameters of the air conditioner and generates an operation state signal of the air conditioner; the controller sends a trigger signal to the alarm module according to the running state signal so as to enable the alarm module to generate an alarm signal.
With reference to the second aspect, an embodiment of the present invention provides a first possible implementation manner of the second aspect, where the operation status signal includes an operation signal and/or a fault feedback signal; the step of sending a trigger signal to the alarm module by the controller according to the running state signal comprises the following steps: when the running state signal comprises a fault feedback signal, the controller sends a trigger signal to the alarm module; or the controller sends a trigger signal to the alarm module when the controller does not receive the running state signal sent by the state feedback module within the preset time.
In a third aspect, an embodiment of the present invention further provides an air conditioner status monitoring system, where the system includes the air conditioner status monitoring apparatus and an air conditioner.
The embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides an air conditioner state monitoring device, method and system.A state feedback module generates an operation state signal of an air conditioner after acquiring current state parameters of the air conditioner; the controller sends a trigger signal to the alarm module according to the running state signal so as to enable the alarm module to generate an alarm signal. The mode can timely detect the working state of the air conditioner in the working environment of the equipment, thereby ensuring the working efficiency of the equipment and preventing safety accidents.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of an air conditioner status monitoring device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another air conditioner status monitoring device according to an embodiment of the present invention;
fig. 3 is a flowchart of an air conditioner status monitoring method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an air conditioner status monitoring system according to an embodiment of the present invention;
fig. 5 is a schematic diagram of another air conditioner status monitoring system according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
At present, equipment with high requirements on environmental temperature, such as a Programmable logic controller (Programmable L g controller, abbreviated as 'P L C') and a frequency converter, is usually arranged in an electric room of a port facility, at the moment, an air conditioner needs to be configured in the electric room to adjust the indoor temperature so as to enable indoor electric elements to work stably and reliably, but when the air conditioner fails and cannot work normally, related workers (such as drivers operating the equipment) cannot know the operation state of the air conditioner in time, if the related workers continue to operate the equipment normally, the temperature in the electric room continuously rises along with the operation of the equipment, the equipment is shut down due to high environmental temperature, and at the moment, the related workers check and maintain the equipment again, and the operation efficiency of the equipment is influenced.
Based on the technical problem, the air conditioner state monitoring device, method and system provided by the embodiment of the invention can be applied to state monitoring of air conditioners in various environments with temperature sensitive equipment.
For the convenience of understanding the present embodiment, a detailed description will be given to an air conditioner state monitoring apparatus disclosed in the present embodiment.
The embodiment of the invention provides an air conditioner state monitoring device, which comprises a state feedback module 10, a controller 20 and an alarm module 30 which are connected in sequence as shown in fig. 1; wherein, the state feedback module 10 is connected with the air conditioner.
The state feedback module is used for acquiring the current state parameters of the air conditioner and generating an operation state signal of the air conditioner; the controller is used for sending a trigger signal to the alarm module according to the running state signal so as to enable the alarm module to generate an alarm signal.
The state feedback module can be connected with a control panel of the air conditioner; when the air conditioner runs, the state feedback module can acquire current state parameters generated by a control panel of the air conditioner, and the parameters can indicate whether the air conditioner runs or not; when the air conditioner has a fault, the current state parameter can indicate that the air conditioner is in a fault state; when the air conditioner is seriously failed, the air conditioner may be automatically turned off; the state feedback module cannot acquire the current state parameters, and at the moment, the state feedback module can generate an operation state signal indicating that the air conditioner stops operating or does not generate the operation state signal. The state feedback signal can be directly connected to the control panel, the current state parameter generated by the control panel is used as the running state signal of the air conditioner to be sent to the controller, and the running state signal can be generated and sent to the controller after certain signal processing is carried out on the current state parameter.
When the controller receives the running state signal, if the running state signal is determined to indicate that the air conditioner is in a fault state, a trigger signal can be sent to the alarm module, so that the alarm module generates an alarm signal; when the running state signal indicates that the air conditioner stops running or the controller does not receive the running state signal within a certain time, the controller can also send a trigger signal to the alarm module to enable the alarm module to generate an alarm signal. The controller can be a single chip microcomputer or a programmable logic controller and the like.
The alarm module is usually arranged in a certain distance range of related personnel, the alarm module and the controller can be connected in a circuit mode to transmit a trigger signal, communication can be carried out in a Bluetooth mode and a wireless module mode, and at the moment, the controller and the alarm module are required to have a wireless communication function. The alarm module can be a buzzer alarm, an audible and visual alarm and the like.
The embodiment of the invention provides an air conditioner state monitoring device.A state feedback module generates an operation state signal of an air conditioner after acquiring current state parameters of the air conditioner; the controller sends a trigger signal to the alarm module according to the running state signal so as to enable the alarm module to generate an alarm signal. The mode can timely detect the working state of the air conditioner in the working environment of the equipment, thereby ensuring the working efficiency of the equipment and preventing safety accidents.
The embodiment of the invention also provides another air conditioner state monitoring device which is realized on the basis of the embodiment; as shown in fig. 2, the apparatus includes a first state feedback module 10a, a second state feedback module 10b, a third state feedback module 10c, a controller 20, an alarm module 30 and a display module 40; the controller 20 is connected to the state feedback module 10a, the state feedback module 10b, the alarm module 30 and the display module 40, respectively.
The first state feedback module 10a is connected to the first air conditioner 50a, and is configured to obtain a current state parameter of the first air conditioner 50 a; the second state feedback module 10b is connected to the second air conditioner 50b and configured to obtain a current state parameter of the second air conditioner 50 b; the third status feedback module 10c is connected to the third air conditioner 50c, and is configured to obtain a current status parameter of the third air conditioner 50 c.
The controller pre-stores the corresponding relationship between the state feedback modules and the air conditioners, that is, the first state feedback module 10a corresponds to the first air conditioner 50a, the second state feedback module 10b corresponds to the second air conditioner 50b, and the third state feedback module 10c corresponds to the third air conditioner 50 c. The controller can generate alarm information according to the corresponding relation and a state feedback module for sending the running state signal; the alarm information comprises an identifier of the air conditioner corresponding to the state feedback module; that is, when the operation state signal transmitted by the first state feedback module 10a is received, if the operation state signal indicates that the corresponding air conditioner is in the fault state, it is determined that the first air conditioner 50a is in the fault state, and the controller generates alarm information including an identifier of the first air conditioner 50 a. The display module is used for displaying the alarm information after receiving the alarm information, and related workers can read the identification of the air conditioner from the display module at the moment and determine that the air conditioner is in a fault state, so that the air conditioner can be maintained and the like; in a specific implementation, the display module may be a display screen made of a material such as liquid crystal.
The operation state signal comprises an operation signal and/or a fault feedback signal; the controller is used for sending a trigger signal to the alarm module when the running state signal comprises a fault feedback signal so as to enable the alarm module to generate an alarm signal; the controller is also used for sending a trigger signal to the alarm module when the running state signal sent by the state feedback module is not received within the preset time, so that the alarm module generates an alarm signal.
Specifically, each state feedback module comprises a first relay and a second relay; the first relay and the second relay are respectively connected with the controller; the current state parameters comprise operation parameters and fault parameters; the operating parameters include on-stream or off-stream; the first relay is used for acquiring operation parameters, outputting an operation signal of the air conditioner when the operation parameters are in operation, and not outputting the operation signal when the operation parameters are stopped; the second relay is used for collecting fault parameters and outputting a fault feedback signal of the air conditioner; wherein the first relay comprises a first dry contact; the first dry contact is connected with the controller through a cable; the second relay includes a second dry contact; the second dry contact is connected with the controller through a cable.
In a specific implementation, the controller may adopt a programmable logic controller (Program L logical controller, P L C), when the state feedback module is composed of a relay, the programmable logic controller is connected with the dry contacts of the relay, the corresponding relationship between each dry contact and the air conditioner monitored by the dry contact is stored in the programmable logic controller, if the dry contact a1 corresponds to the air conditioner 1, when the programmable logic controller receives a fault feedback signal sent by the dry contact, it is determined that the air conditioner 1 is in a fault state, alarm information is generated, the alarm information indicates that the air conditioner 1 is in the fault state, and after the display module displays the alarm information, relevant staff may determine that the air conditioner 1 is in the fault state, and then perform maintenance and other processing on the air conditioner 1.
In specific implementation, the alarm module can adopt an audible and visual alarm; the audible and visual alarm can generate acoustic alarm signals and optical alarm signals, or only generate the acoustic alarm signals or the optical alarm signals according to the requirement setting, so as to inform related personnel to carry out maintenance treatment on the air conditioner with the fault.
The device can timely detect the working state of the air conditioner in the working environment of the equipment and position the air conditioner in a fault state, so that related personnel can maintain the air conditioner, the operation efficiency of the equipment is ensured, and safety accidents are prevented.
Corresponding to the above embodiment, the embodiment of the present invention further provides an air conditioner status monitoring method, which is applied to the above air conditioner status monitoring device; as shown in fig. 3, the method comprises the steps of:
step S300, the state feedback module acquires the current state parameters of the air conditioner and generates an operation state signal of the air conditioner.
Step S302, the controller sends a trigger signal to the alarm module according to the running state signal, so that the alarm module generates an alarm signal.
Specifically, the operation state signal comprises an operation signal and/or a fault feedback signal; the step of sending a trigger signal to the alarm module by the controller according to the running state signal comprises the following steps: when the running state signal comprises a fault feedback signal, the controller sends a trigger signal to the alarm module; or the controller sends a trigger signal to the alarm module when the controller does not receive the running state signal sent by the state feedback module within the preset time.
The air conditioner state monitoring method provided by the embodiment of the invention has the same technical characteristics as the air conditioner state monitoring device provided by the embodiment, so that the same technical problems can be solved, and the same technical effects can be achieved.
Based on the above embodiments, the embodiment of the present invention further provides an air conditioner status monitoring system, as shown in fig. 4, the system includes the air conditioner status monitoring device 80 and the air conditioner 50.
The air conditioner state monitoring system provided by the embodiment of the invention has the same technical characteristics as the air conditioner state monitoring device and the air conditioner state monitoring method provided by the embodiment, so that the same technical problems can be solved, and the same technical effects can be achieved.
Based on the above embodiment, the embodiment of the invention further provides another air conditioner state monitoring system; the system mainly aims at the following technical problems caused by the fact that the air conditioner state cannot be fed back to relevant operators (such as drivers):
1. the related operators cannot know the running state of the air conditioner in the electric room in time, and can only determine that the air conditioner has a fault and needs to be maintained when the equipment is stopped due to a fault or is maintained next time;
2. the failure of the air conditioner cannot be identified in time, and the air conditioner needs to be checked one by one, which is time-consuming.
3. The equipment in the electric room runs in a high-temperature environment for a long time, and the service life of an electric element is influenced.
4. The equipment is overhauled after being shut down, the shutdown maintenance time is long, and the normal use of the equipment is influenced.
Aiming at the above limitation, the system is improved by the following two points:
1) installing operation and fault state feedback points (equivalent to the state feedback module) in each air conditioner;
2) an air conditioner fault alarm is added in an operation room (cab) of related operators, and a fault air conditioner number is added on a fault display screen (equivalent to the display device).
In the specific implementation process, an air conditioner state feedback contact can be added in an air conditioner of an electric room to feed back the running state and the fault state of the air conditioner in real time, for example, 2 groups of output relay hardware modules are added on a control panel of the air conditioner, a dry contact of the relay can output the running state and the fault feedback contact signal (equivalent to the fault signal in the embodiment) of the air conditioner according to the current state of the air conditioner, the contact signal is connected into a system controller (equivalent to the controller in the embodiment, the controller can be a controller of running equipment, such as a P L C controller of a crane) to monitor the state of the air conditioner in real time, the controller receives the running signal of the air conditioner to indicate that the air conditioner is normal, when the running signal cannot be received or the fault signal of the air conditioner is received, the controller triggers an alarm to inform a driver in time, specifically, the P L C can output the alarm signal through an output module to control the alarm to send an audible and visual alarm to the driver, the air conditioner number with the fault is displayed on a fault display screen, and personnel can timely arrange the overhaul of the air conditioner with the fault according.
As shown in FIG. 5, which is a working schematic diagram of the system, each air conditioner has an operation signal and a fault signal which are connected to a P L C, and the P L C outputs a fault alarm and fault display, a plurality of air conditioners (two air conditioners are taken as an example in FIG. 5) are generally configured in an electric room due to the large heat productivity of electric equipment, a group of state feedback contacts of the air conditioners are added in each air conditioner to feed back the operation state and the fault state of the air conditioners, the state feedback contacts are connected to a P L C input point of the system, and the operation feedback state and the fault feedback state of each air conditioner can be read in real time by the P L C when the equipment is operated.
The system can monitor the operation and fault state of the air conditioner in real time, and can trigger alarm and display the fault position in time when the air conditioner fails.
The air conditioner state monitoring method, device and computer program product of the system provided by the embodiment of the present invention include a computer readable storage medium storing a program code, where instructions included in the program code may be used to execute the method described in the foregoing method embodiment, and specific implementation may refer to the method embodiment, and will not be described herein again.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that the following embodiments are merely illustrative of the present invention, and not restrictive, and the scope of the present invention is not limited thereto: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An air conditioner state monitoring device is characterized by comprising a state feedback module, a controller and an alarm module which are sequentially connected; the state feedback module is connected with the air conditioner;
the state feedback module is used for acquiring the current state parameters of the air conditioner and generating an operation state signal of the air conditioner;
the controller is used for sending a trigger signal to the alarm module according to the running state signal so as to enable the alarm module to generate an alarm signal.
2. The apparatus of claim 1, wherein the operation status signal comprises an operation signal and/or a fault feedback signal;
the controller is used for sending a trigger signal to the alarm module when the running state signal comprises a fault feedback signal so as to enable the alarm module to generate an alarm signal;
the controller is further used for sending a trigger signal to the alarm module when the running state signal sent by the state feedback module is not received within the preset time, so that the alarm module generates an alarm signal.
3. The apparatus of claim 1, further comprising a display module; the state feedback module comprises a plurality of modules; each state feedback module is connected with the corresponding air conditioner; the controller prestores the corresponding relation between the state feedback module and the air conditioner;
the controller is also used for generating alarm information according to the corresponding relation and a state feedback module for sending the running state signal; the alarm information comprises an identifier of the air conditioner corresponding to the state feedback module;
the display module is used for displaying the alarm information.
4. The apparatus of claim 2, wherein the state feedback module comprises a first relay and a second relay; the first relay and the second relay are respectively connected with the controller;
the current state parameters comprise operation parameters and fault parameters; the operating parameters comprise operating or stopped;
the first relay is used for acquiring the operation parameters and outputting an operation signal of the air conditioner when the operation parameters are in operation;
the second relay is used for collecting the fault parameters and outputting fault feedback signals of the air conditioner.
5. The apparatus of claim 4, wherein the first relay comprises a first dry contact; the first dry contact is connected with the controller through a cable;
the second relay comprises a second dry contact; the second dry contact is connected with the controller through a cable.
6. The device of claim 1, wherein the alarm module comprises an audible and visual alarm; the audible and visual alarm is used for generating an acoustic alarm signal and/or an optical alarm signal.
7. The apparatus of claim 1, wherein the controller comprises a programmable logic controller.
8. An air conditioning state monitoring method applied to the air conditioning state monitoring apparatus according to any one of claims 1 to 7; the method comprises the following steps:
the state feedback module acquires current state parameters of the air conditioner and generates an operation state signal of the air conditioner;
and the controller sends a trigger signal to the alarm module according to the running state signal so as to enable the alarm module to generate an alarm signal.
9. The method of claim 8, wherein the operation status signal comprises an operation signal and/or a fault feedback signal;
the controller sends a triggering signal to the alarm module according to the running state signal, and the step comprises the following steps:
when the running state signal comprises a fault feedback signal, the controller sends a trigger signal to the alarm module;
or the controller sends a trigger signal to the alarm module when the controller does not receive the running state signal sent by the state feedback module within a preset time.
10. An air conditioner state monitoring system, characterized in that the system comprises the air conditioner state monitoring device and an air conditioner according to any one of claims 1 to 7.
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