CN110793169B - Dual-system control method and device and dual-system air conditioning equipment - Google Patents
Dual-system control method and device and dual-system air conditioning equipment Download PDFInfo
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- CN110793169B CN110793169B CN201910901443.0A CN201910901443A CN110793169B CN 110793169 B CN110793169 B CN 110793169B CN 201910901443 A CN201910901443 A CN 201910901443A CN 110793169 B CN110793169 B CN 110793169B
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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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- 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
- F24F11/38—Failure diagnosis
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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
- F24F11/56—Remote control
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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
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
Abstract
The invention discloses a dual-system control method and device and dual-system air conditioning equipment. Wherein, the method comprises the following steps: controlling a compressor of a first system to be started after the compressor meets a starting condition; and judging whether the communication between the second system and the first system is normal or not, and controlling the starting time of the compressor of the second system according to the judgment result. According to the invention, through the start-stop control logic of the dual-system compressors, the condition that the two-system compressors are started simultaneously can be avoided, the overlarge current required when the two systems are started is avoided, the success rate of starting the dual systems is improved, and the reliability and the stability of the unit operation are improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a dual-system control method and device and dual-system air conditioning equipment.
Background
The double-system air conditioner has two sets of independent refrigerating systems, and when the double systems operate, the two systems can control respective compressors to start and stop. At present, the start-stop logic of the compressors of the two systems still adopts the single system, the two systems completely and independently control the start-stop of the respective compressors, so that the compressors of the two systems are required to be simultaneously opened at a section, and the simultaneous opening generally means that the opening interval time of the two compressors is less than 5 seconds.
However, the current required for the simultaneous segment start is too large, which easily causes the failure of the start of the compressor. For example, when a user presses a start key of display panels of two systems at the same time, the two systems are started and operate according to the same control logic, compressors of the two systems need to be started at the same time, and the risk of starting failure exists.
Aiming at the problem that the simultaneous section opening of two compressors of a dual-system air conditioner in the prior art is easy to cause opening failure, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the invention provides a dual-system control method and device and dual-system air conditioning equipment, and aims to solve the problem that in the prior art, the simultaneous section opening of two compressors of a dual-system air conditioner is easy to cause opening failure.
In order to solve the technical problem, the invention provides a dual-system control method, wherein the method comprises the following steps: controlling a compressor of a first system to be started after the compressor meets a starting condition; and judging whether the communication between the second system and the first system is normal or not, and controlling the starting time of the compressor of the second system according to the judgment result.
Further, determining whether the communication between the second system and the first system is normal includes: judging whether the second system can receive the unit state parameters of the first system or not; if the communication can be received, the communication is confirmed to be normal; if the communication can not be received, the communication abnormity is confirmed.
Further, judging whether the communication between the second system and the first system is normal or not, and controlling the starting time of the compressor of the second system according to the judgment result, the method comprises the following steps:
if the communication between the second system and the first system is abnormal, controlling the compressor of the second system to start after delaying for a first preset time after the compressor meets the starting condition;
and if the communication between the second system and the first system is normal, further judging whether the first system is in an abnormal operation state, and controlling the starting time of a compressor of the second system according to a judgment result.
Further, the determining whether the first system is in an abnormal operation state includes: analyzing a fault zone bit in the unit state parameters of the first system; and judging whether the first system is in an abnormal operation state or not according to the fault zone bit.
Further, judging whether the first system is in an abnormal operation state, and controlling the starting time of the compressor of the second system according to the judgment result, wherein the method comprises the following steps:
if the second system is in the abnormal operation state, controlling the compressor of the second system to be started after the compressor meets the starting condition;
and if the second system is in a normal running state, controlling the compressor of the second system to start after delaying for a second preset time after the compressor of the second system meets the starting condition.
Further, the method further comprises: after any system is powered on, the system is judged to be a first system or a second system according to the dial value of the mainboard.
The present invention also provides a dual system control apparatus, wherein the apparatus comprises: the first control module is used for controlling the compressor of the first system to be started after the compressor meets the starting condition; and the second control module is used for judging whether the communication between the second system and the first system is normal or not and controlling the starting time of the compressor of the second system according to the judgment result.
Further, the second control module is specifically configured to determine whether the second system can receive the unit state parameter of the first system; if the communication can be received, the communication is confirmed to be normal; if the communication can not be received, the communication abnormity is confirmed.
Further, the second control module includes:
the abnormality processing unit is used for controlling the compressor of the second system to be started after delaying a first preset time when the compressor meets the starting condition under the condition that the communication between the second system and the first system is abnormal;
and the normal processing unit is used for further judging whether the first system is in an abnormal operation state or not under the condition that the communication between the second system and the first system is normal, and controlling the starting time of the compressor of the second system according to the judgment result.
Further, the normal processing unit is specifically configured to, if the second system is in an abnormal operation state, control the compressor of the second system to be turned on after the compressor meets an on condition; and if the second system is in a normal running state, controlling the compressor of the second system to start after delaying for a second preset time after the compressor of the second system meets the starting condition.
The invention also provides double-system air conditioning equipment, wherein the double-system air conditioning equipment comprises the double-system control device.
The invention also provides a computer-readable storage medium, on which a computer program is stored, wherein the program, when executed by a processor, implements the method as described above.
By applying the technical scheme of the invention, the condition that the two system compressors are simultaneously started can be avoided through the start-stop control logic of the two system compressors, the overlarge current required when the two systems are started is avoided, the success rate of starting the two systems is improved, and the reliability and the stability of the unit operation are improved.
Drawings
FIG. 1 is a flow chart of a dual system control method according to an embodiment of the present invention;
fig. 2 is a flowchart of a compressor control method of a dual system air conditioner according to an embodiment of the present invention;
fig. 3 is a block diagram of a dual system control apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. 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.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a plurality" typically includes at least two.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in the article or device in which the element is included.
Alternative embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Example 1
Fig. 1 is a flowchart of a dual system control method according to an embodiment of the present invention, as shown in fig. 1, the method including the steps of:
step S101, after a compressor of a first system meets an opening condition, controlling the compressor to be opened;
and S102, judging whether the communication between the second system and the first system is normal or not, and controlling the starting time of a compressor of the second system according to the judgment result.
The execution order of step S101 and step S102 is not limited to this, and may be exchanged or executed simultaneously. For a dual-system air conditioner, which system is defined as a first system and which system is defined as a second system, after any system is powered on, the system can be judged to be the first system or the second system according to the dial value of the mainboard. After the mainboard is produced, the dial can be dialed to a specified numerical value according to requirements. Different values can be endowed with different meanings, and the dialing value is read through software, so that the corresponding meaning is judged in the program, and the first system or the second system is determined.
The starting condition in this embodiment means that the operating parameter and the environmental parameter of the compressor meet a preset indication, for example; and determining whether the compressor meets the starting condition or not according to the outdoor environment temperature, the return air temperature, the refrigeration temperature setting, the set temperature deviation, the total fault flag bit judgment and the like.
Judging the communication between the second system and the first system, judging whether the second system can receive the unit state parameters of the first system, and if so, confirming that the communication is normal; if the communication can not be received, the communication abnormity is confirmed. Based on the CAN bus, the state parameters of the set are sent and received between the two systems through the CAN bus, and the communication conditions of the two systems CAN be timely and accurately determined.
And if the unit state parameters cannot be received, determining that the communication between the second system and the first system is abnormal, and controlling the compressor of the second system to start after delaying for a first preset time after the compressor of the second system meets the starting condition. Therefore, when the communication between the two systems is abnormal, the two systems are prevented from being started at the same time, and the second system is set to be started after being delayed compared with the first system. The first preset duration may be set to 30 s.
And if the state parameters of the unit are received, determining that the two systems are in normal communication, then judging whether the first system is in an abnormal operation state or not based on the state parameters of the unit, and controlling the starting time of a compressor of the second system according to the judgment result.
The unit operating parameters of the first system generally include at least one of: exhaust temperature, return air temperature, outdoor ambient temperature, evaporating temperature, continuous operating time of an internal fan, continuous operating time of a compressor, and a fault flag. The fault flag includes at least one of: the system comprises a main fault flag bit, a main alarm flag bit, a jumper wire cap number, a display panel communication fault flag bit, an inter-mainboard communication fault flag bit, a temperature sensing bulb fault flag bit, an outdoor fan fault flag bit, a power supply abnormality flag bit, a compressor enabling flag bit, an electric heating enabling flag bit, a return air temperature sensing bulb fault detection flag bit and an outer ring temperature sensing bulb fault detection flag bit.
During specific implementation, a fault zone bit in the unit state parameters of the first system is analyzed, and whether the first system is in an abnormal operation state or not is judged according to the fault zone bit. The abnormal operation state is a fault state or a protection state. And if at least one of the fault zone bits is a fault, determining that the first system is in a fault state.
If the second system is in the abnormal operation state, controlling the compressor of the second system to be started after the compressor meets the starting condition; and if the system is in a normal running state, controlling the compressor of the second system to start after delaying for a second preset time after the compressor of the second system meets the starting condition. The second preset duration may be set to 5 s. Based on this, when the first system appears abnormally, control the second system and open immediately to guarantee that the air conditioner can normally operate. When the first system normally operates, the second system is set to be started later than the first system, but the delay time is shorter, so that the situation that the current required by the two systems is too large when the two systems are started is avoided, and the success rate of starting the two systems is improved.
The time for delaying the start of the compressor (i.e. the first preset time period and the second preset time period) can be adjusted according to actual conditions. Since a large current is required when the compressor is started, the current is restored to a normal value after the compressor is normally operated. The time from the compressor starting to the normal operation is measured according to actual measurement, and the starting current and the normal operation current are determined according to actual conditions. For the setting of the time for delaying the start, the current can be ensured not to exceed the rated current when the two compressors work simultaneously.
Example 2
Fig. 2 is a flowchart of a compressor control method of a dual-system air conditioner according to an embodiment of the present invention, and as shown in fig. 2, two systems send and receive unit state parameters through a CAN bus, and then control the two systems to start according to a certain control method, so that the situation that the two systems of compressors are simultaneously started CAN be avoided, and the reliability and stability of unit operation CAN be improved.
As shown in fig. 2, after each system is powered on, it is determined whether it is system 1 (i.e., the first system) or system 2 (i.e., the second system) according to the dial value of the motherboard.
In the case of the system 1, the compressor is started immediately without waiting after the system 1 satisfies the compressor start condition.
If the system 2 is adopted, firstly, the state parameters of the system 1 are received through communication, and whether the state parameters of the system 1 can be received is judged. If the unit state parameters of the system 1 cannot be received, the compressor of the system 2 is started after delaying for 30 seconds after the system 2 meets the starting condition of the compressor; if the unit state parameters of the system 1 can be received, whether the system 1 has faults or is protected is judged.
If the system 1 is in fault or protected, when the system 2 meets the starting condition of the compressor, the compressor of the system 2 is started immediately without waiting; if system 1 is not malfunctioning and protected, system 2 compressor is turned on with a 5 second delay.
Example 3
Corresponding to the dual-system control method introduced in fig. 1, the present embodiment provides a dual-system control apparatus, as shown in a block diagram of the structure of the dual-system control apparatus shown in fig. 3, the apparatus includes:
the first control module 10 is used for controlling the compressor of the first system to be started after the compressor meets the starting condition;
and the second control module 20 is configured to determine whether the communication between the second system and the first system is normal, and control a starting time of a compressor of the second system according to a determination result.
For a dual-system air conditioner, which system is defined as a first system and which system is defined as a second system, after any system is powered on, the system can be judged to be the first system or the second system according to the dial value of the mainboard. After the mainboard is produced, the dial can be dialed to a specified numerical value according to requirements. Different values can be endowed with different meanings, and the dialing value is read through software, so that the corresponding meaning is judged in the program, and the first system or the second system is determined.
Preferably, the second control module is specifically configured to determine whether the second system can receive the unit state parameter of the first system; if the communication can be received, the communication is confirmed to be normal; if the communication can not be received, the communication abnormity is confirmed. Based on the method, the communication conditions of the two systems can be timely and accurately determined.
The second control module includes:
the abnormality processing unit is used for controlling the compressor of the second system to start after delaying a first preset time when the compressor meets the starting condition under the condition that the communication between the second system and the first system is abnormal;
and the normal processing unit is used for further judging whether the first system is in an abnormal operation state or not under the condition that the communication between the second system and the first system is normal, and controlling the starting time of the compressor of the second system according to the judgment result. The normal processing unit is specifically used for controlling the compressor of the second system to be started after the compressor meets the starting condition if the second system is in the abnormal operation state; and if the second system is in a normal running state, controlling the compressor of the second system to start after delaying for a second preset time after the compressor of the second system meets the starting condition.
Therefore, when the communication between the two systems is abnormal, the two systems are prevented from being started at the same time, and the second system is set to be started after being delayed compared with the first system. The first preset duration may be set to 30 s. When the first system is abnormal, the second system is controlled to be started immediately, so that the normal operation of the air conditioner is ensured. When the first system normally operates, the second system is set to be started later than the first system, but the delay time is shorter, so that the situation that the current required by the two systems is too large when the two systems are started is avoided, and the success rate of starting the two systems is improved.
Example 4
The present embodiment provides an electronic device, which is used for a method for dual system control, and the electronic device includes: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the one processor to cause the at least one processor to: controlling a compressor of a first system to be started after the compressor meets a starting condition; and judging whether the communication between the second system and the first system is normal or not, and controlling the starting time of the compressor of the second system according to the judgment result.
Example 5
The embodiment of the present invention provides software for implementing the technical solutions described in the above embodiments and preferred embodiments.
Embodiments of the present invention provide a non-volatile computer storage medium, where a computer-executable instruction is stored in the computer storage medium, and the computer-executable instruction may execute the dual system control method in any of the above method embodiments.
The storage medium stores the software, and the storage medium includes but is not limited to: optical disks, floppy disks, hard disks, erasable memory, etc.
The product can execute the method provided by the embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, reference may be made to the method provided by the embodiment of the present invention.
The electronic device of embodiments of the present invention exists in a variety of forms, including but not limited to:
(1) mobile communication devices, which are characterized by mobile communication capabilities and are primarily targeted at providing voice and data communications. Such terminals include smart phones (e.g., iphones), multimedia phones, functional phones, and low-end phones, among others.
(2) The ultra-mobile personal computer equipment belongs to the category of personal computers, has calculation and processing functions and generally has the characteristic of mobile internet access. Such terminals include PDA, MID, and UMPC devices, such as ipads.
(3) Portable entertainment devices such devices may display and play multimedia content. Such devices include audio and video players (e.g., ipods), handheld game consoles, electronic books, as well as smart toys and portable car navigation devices.
(4) The server is similar to a general computer architecture, but has higher requirements on processing capability, stability, reliability, safety, expandability, manageability and the like because of the need of providing highly reliable services.
(5) And other electronic devices with data interaction functions, such as televisions, large vehicle-mounted screens and the like.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A dual system control method, the method comprising:
controlling a compressor of a first system to be started after the compressor meets a starting condition; and the number of the first and second groups,
judging whether the communication between a second system and the first system is normal or not, and controlling the starting time of a compressor of the second system according to the judgment result; which comprises the following steps:
if the communication between the second system and the first system is abnormal, controlling the compressor of the second system to start after delaying for a first preset time after the compressor meets the starting condition;
if the communication between the second system and the first system is normal, further judging whether the first system is in an abnormal operation state, and controlling the starting time of a compressor of the second system according to a judgment result;
judging whether the first system is in an abnormal operation state or not, and controlling the starting time of the compressor of the second system according to a judgment result, wherein the method comprises the following steps: if the second system is in the abnormal operation state, controlling the compressor of the second system to be started after the compressor meets the starting condition; and if the second system is in a normal running state, controlling the compressor of the second system to start after delaying for a second preset time after the compressor of the second system meets the starting condition.
2. The method of claim 1, wherein determining whether the second system and the first system are communicating properly comprises:
judging whether the second system can receive the unit state parameters of the first system or not;
if the communication can be received, the communication is confirmed to be normal; if the communication can not be received, the communication abnormity is confirmed.
3. The method of claim 2, wherein determining whether the first system is in an abnormal operating state comprises:
analyzing a fault zone bit in the unit state parameters of the first system;
and judging whether the first system is in an abnormal operation state or not according to the fault zone bit.
4. The method of claim 1, further comprising:
after any system is powered on, the system is judged to be a first system or a second system according to the dial value of the mainboard.
5. A dual system control apparatus, the apparatus comprising:
the first control module is used for controlling the compressor of the first system to be started after the compressor meets the starting condition;
the second control module is used for judging whether the communication between the second system and the first system is normal or not and controlling the starting time of a compressor of the second system according to the judgment result;
the second control module includes:
the abnormality processing unit is used for controlling the compressor of the second system to be started after delaying a first preset time when the compressor meets the starting condition under the condition that the communication between the second system and the first system is abnormal;
the normal processing unit is used for further judging whether the first system is in an abnormal operation state or not under the condition that the communication between the second system and the first system is normal, and controlling the starting time of a compressor of the second system according to a judgment result;
the normal processing unit is specifically configured to control the compressor of the second system to be started after the compressor meets a starting condition if the second system is in an abnormal operation state; and if the second system is in a normal running state, controlling the compressor of the second system to start after delaying for a second preset time after the compressor of the second system meets the starting condition.
6. The apparatus of claim 5,
the second control module is specifically configured to determine whether the second system can receive the unit state parameters of the first system; if the communication can be received, the communication is confirmed to be normal; if the communication can not be received, the communication abnormity is confirmed.
7. A dual system air conditioner characterized in that it comprises the dual system control device of any one of claims 5 to 6.
8. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the method according to any one of claims 1 to 4.
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