CN105717397B - Air conditioner communication fault detection method and system - Google Patents
Air conditioner communication fault detection method and system Download PDFInfo
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- CN105717397B CN105717397B CN201610219168.0A CN201610219168A CN105717397B CN 105717397 B CN105717397 B CN 105717397B CN 201610219168 A CN201610219168 A CN 201610219168A CN 105717397 B CN105717397 B CN 105717397B
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- 238000004891 communication Methods 0.000 title claims abstract description 176
- 238000001514 detection method Methods 0.000 title claims abstract description 71
- 230000008054 signal transmission Effects 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000004378 air conditioning Methods 0.000 claims description 73
- 230000002159 abnormal effect Effects 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 10
- 230000004888 barrier function Effects 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 12
- 230000008439 repair process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
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Abstract
The invention provides an air conditioner communication fault detection method and system. The method comprises the following steps: when the air conditioner has a communication fault in the operation, detecting a fault signal of the air conditioner; judging whether the fault signal is consistent with a preset external machine fault signal and a preset internal machine fault signal or not; if the fault signal is consistent with a preset external machine fault signal, determining that a control device of an external machine of the air conditioner has a fault; if the fault signal is consistent with a preset internal machine fault signal, determining that a control device of an internal machine of the air conditioner has a fault; and if the fault signal does not accord with the preset external machine fault signal and the preset internal machine fault signal, determining whether the communication line is normal according to whether signal transmission exists on the communication line. The method and the device can accurately position the position point of the communication fault according to the preset fault signal of the inner machine and the preset fault signal of the outer machine, avoid the problem of blindly replacing the control device of the inner machine or the outer machine, bring convenience to after-sale maintenance, and improve the after-sale maintenance efficiency and accuracy.
Description
Technical field
The present invention relates to detection technique fields, more particularly to a kind of air-conditioning communication fault detection method and system.
Background technique
Communication failure is a kind of common failure on convertible frequency air-conditioner, under normal operation, the inside and outside machine of convertible frequency air-conditioner into
Row data exchange, when communication failure occurs in the control device that communication failure or air-conditioning internal machine, outer machine occurs in communication line, all
Communication failure can be shown on the display of interior machine, it is which position occurs that user or after-sales service personnel, which can not be accurately positioned,
Communication failure, there are problems that blindly replacing interior machine or outer mainboard, bring more trouble to maintenance.
Summary of the invention
In consideration of it, providing one kind can be accurate it is necessary to aiming at the problem that tradition can not be accurately positioned communication failure position
Location point occurs for positioning and communicating failure, improves the air-conditioning communication fault detection method and system of after-sales service efficiency and accuracy.
To reach goal of the invention, a kind of air-conditioning communication fault detection method is provided, which comprises
When air-conditioning communication failure occurs in operation, the fault-signal of the air-conditioning is detected；
Judge whether the fault-signal is consistent with preset outer machine fault-signal and preset interior machine fault-signal；
If the fault-signal is consistent with the preset outer machine fault-signal, it is determined that the outer machine of the air-conditioning
Control device breaks down；
If the fault-signal is consistent with the preset interior machine fault-signal, it is determined that the interior machine of the air-conditioning
Control device breaks down；
If the fault-signal is not inconsistent with the preset outer machine fault-signal and the preset interior machine fault-signal
When conjunction, whether the communication line is determined according to whether there is signal to transmit on the communication line for connecting the interior machine and the outer machine
Normally.
If the fault-signal and the preset outer machine fault-signal and described preset in one of the embodiments,
It is true according to whether there is signal to transmit on the communication line for connecting the interior machine and the outer machine when interior machine fault-signal is not met
Determining the whether normal step of the communication line includes:
Judge whether there is signal transmission on the communication line；
If so, determining that the signal transmission of the communication line is normal；
If not, it is determined that the signal transmission of the communication line is abnormal.
In one of the embodiments, after the signal for determining the communication line transmits abnormal step, also wrap
It includes:
The communication line of the interior machine and the outer machine is disconnected, and will test device and the interior machine and/or the outer machine
Establish communication connection；
Communication line is determined according to whether there is signal to transmit between the detection device and the interior machine and/or the outer machine
Abort situation；
If the signal transmission between the detection device and the interior machine is normal, it is determined that the communication line of the outer machine goes out
Existing failure；
If the signal transmission between the detection device and the outer machine is normal, it is determined that the communication line of the interior machine goes out
Existing failure；
Otherwise, it is determined that the communication line of the interior machine and the outer machine breaks down.
In one of the embodiments, if it is determined that when the communication line of the outer machine breaks down, issues Fisrt fault and accuse
Alert signal；
If it is determined that issuing the second fault alarm signal when the communication line of the interior machine breaks down；
If it is determined that being simultaneously emitted by the Fisrt fault when communication line of the interior machine and the outer machine breaks down and accusing
Alert signal and second fault alarm signal.
In one of the embodiments, if it is determined that when the control device of the outer machine of the air-conditioning breaks down, third is issued
Fault alarm signal；
If it is determined that issuing the 4th fault alarm signal when the control device of the interior machine of the air-conditioning breaks down.
The present invention also provides a kind of air-conditioning communication failure detection system, the system comprises:
Detection module, for detecting the fault-signal of the air-conditioning when air-conditioning communication failure occurs in operation；
Judgment module, for judge the fault-signal whether with preset outer machine fault-signal or preset interior machine failure
Signal is consistent；
First determining module, if be consistent for the fault-signal with the preset outer machine fault-signal, really
The control device of the outer machine of the fixed air-conditioning breaks down；
Second determining module, if be consistent for the fault-signal with the preset interior machine fault-signal, really
The control device of the interior machine of the fixed air-conditioning breaks down；
Third determining module, if for the fault-signal and the preset outer machine fault-signal and it is described it is preset in
When machine fault-signal is not met, determined according to whether there is signal to transmit on the communication line for connecting the interior machine and the outer machine
Whether the communication line is normal.
The third determining module includes: in one of the embodiments,
Judging unit, for judging whether there is signal transmission on the communication line；If so, determining the communication line
Signal transmission it is normal；If not, it is determined that the signal transmission of the communication line is abnormal.
In one of the embodiments, further include:
Module is established in disconnection, for disconnecting the interior machine after the signal transmission for determining the communication line is abnormal
With the communication line of the outer machine, and device and the interior machine will test and/or the outer machine is established and communicated to connect；
Determine abort situation module, for according between the detection device and the interior machine and/or the outer machine whether
There is signal to transmit and determines communication line abort situation；
4th determining module, if the signal transmission between the detection device and the interior machine is normal, it is determined that institute
The communication line for stating outer machine breaks down；
5th determining module, if the signal transmission between the detection device and the outer machine is normal, it is determined that institute
The communication line for stating interior machine breaks down；
6th determining module, if not for the signal transmission between the detection device and the interior machine and the outer machine
When normal, it is determined that the communication line of the interior machine and the outer machine breaks down.
In one of the embodiments, further include:
Fisrt fault alarm module, for issuing Fisrt fault when the communication line for determining the outer machine breaks down
Alarm signal；
Second fault warning module, for issuing the second failure when the communication line for determining the interior machine breaks down
Alarm signal；And
When determining that the communication line of the interior machine and the outer machine breaks down, the Fisrt fault alarm module and
The second fault warning module works simultaneously.
In one of the embodiments, further include:
Third fault warning module, for issuing the in the control device failure for the outer machine for determining the air-conditioning
Three fault alarm signals；
4th fault warning module, for issuing the in the control device failure for the interior machine for determining the air-conditioning
Four fault alarm signals.
The beneficial effect comprise that
Above-mentioned air-conditioning communication fault detection method and system, according to preset interior machine fault-signal and preset outer machine failure
Signal determines the generation position for the fault-signal that detection obtains, since interior machine control device and outer machine control device break down
Signal on the communication line of air-conditioning is different, therefore can determine that location point occurs for bit walk failure, is not in blind
Mesh replace in machine control device or the problem of outer machine control device, offer convenience to after-sales service, improve after-sales service efficiency and
Accuracy.
Detailed description of the invention
Fig. 1 is the flow diagram of the air-conditioning communication fault detection method in one embodiment；
Fig. 2 is the flow diagram of the air-conditioning communication fault detection method in another embodiment；
Fig. 3 is the flow diagram of the air-conditioning communication fault detection method in another embodiment；
Fig. 4 is the structural schematic diagram of the air-conditioning communication failure detection system in one embodiment.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right with reference to the accompanying drawings and embodiments
Air-conditioning communication fault detection method of the present invention and system are further elaborated.It should be appreciated that described herein specific
Embodiment only to explain the present invention, is not intended to limit the present invention.
In one embodiment, as shown in Figure 1, providing a kind of air-conditioning communication fault detection method, this method include with
Lower step:
S100 detects the fault-signal of air-conditioning when air-conditioning communication failure occurs in operation.
S200, judges whether the fault-signal is consistent with preset outer machine fault-signal or preset interior machine fault-signal
It closes.
S210, if fault-signal is consistent with preset outer machine fault-signal, it is determined that the control device of the outer machine of air-conditioning
It breaks down.
S220, if fault-signal is consistent with preset interior machine fault-signal, it is determined that the control device of the interior machine of air-conditioning
It breaks down.
S230, if fault-signal and preset outer machine fault-signal and preset interior machine fault-signal are not met, root
Determine whether communication line is normal according to whether there is signal to transmit on the communication line of machine and outer machine in connecting.
In the present embodiment, in order to which the detection process of fault-signal is better achieved, done on the basis of traditional air conditioner structure
It is suitably modified, i.e., accesses detection device on the communication line of the interior machine of air-conditioning and outer machine.Detection device can be in air-conditioning
It accesses, can also just be accessed before there is communication failure after there is communication failure.The inside of detection device is provided with detection journey
Sequence, so that detection device communication failure can occur according to the operating status of the detection Programmable detection air-conditioning, and in air-conditioning
When, detection obtains the fault-signal of air-conditioning, then true further according to preset interior machine fault-signal and preset outer machine fault-signal
The generation position of the fixed fault-signal, since interior machine control device and outer machine control device break down in the communication line of air-conditioning
On signal be different, such as: can by detection communication line on voltage signal come judge communication failure occur exist
Interior machine or outer machine determine outer machine event if the line and zero curve of the black of the outer machine of measurement have the pulse voltage signal of 0-20V
Barrier, otherwise detect inside and outside machine connection line whether failure；If the line of the black of machine and zero curve do not have the pulse of 0-20V in measuring
Voltage signal, then determine in machine failure, otherwise, then detect inside and outside machine connecting line whether failure.So if the event that detection obtains
Barrier signal is consistent with preset outer machine fault-signal, it is determined that fault-signal appears in the outer machine control device of air-conditioning, such as
The fault-signal that fruit detects is consistent with preset interior machine fault-signal, it is determined that fault-signal appears in the control of interior machine
In device, if the fault-signal that detection obtains is not inconsistent with preset outer machine fault-signal and preset interior machine fault-signal
It closes, then illustrates in connection that the fault-signal may occur whether to have on the communication line of machine and outer machine according on communication line
Signal transmission determines whether it is that the communication line breaks down.Location point occurs to which communication failure be accurately positioned, and in tooling
On provide correct repair prompt, such as: in the display equipment of detection device show in machine break down or outer machine appearance
Failure is not in the problem of blindly replacing interior machine control device or outer machine control device, to offer convenience, improve to after-sales service
After-sales service efficiency and accuracy.
Wherein, preset interior machine fault-signal and preset outer machine fault-signal can be by testing acquisition in advance.Such as:
Guarantee to connect using the outer machine that a control device breaks down with detection device in interior machine and its normal situation of communication line,
Detection device detects the fault-signal of outer machine and preserves, as preset outer machine fault-signal.Similarly, it obtains in preset
Machine fault-signal is simultaneously saved, in order to consequent malfunction signal and preset outer machine fault-signal and default interior machine fault-signal
It is compared.Preset interior machine fault-signal includes the fault signature A of interior each device of machine control device, preset outer machine failure letter
Number include outer each device of machine control device fault signature B.The control device of interior machine includes control mainboard, such as MCU
(Microcontroller Unit, micro-control unit)；The control device of outer machine also includes control mainboard, such as MCU.
In one embodiment, referring to fig. 2, step S230 includes:
S231 judges whether there is signal transmission on communication line.
S2310, if so, determining that the signal transmission of communication line is normal.
S2311, if not, it is determined that the signal transmission of communication line is abnormal.
If operation of air conditioner breaks down, detecting the fault-signal not is air-conditioning internal machine control device and outdoor machine of air-conditioner device hair
Raw, then judge whether to be broken down on the communication line of machine and outer machine in connecting, if there is signal transmission on communication line,
Determine that communication line is normal, possibility is only because air-conditioning powers off caused failure, rather than really there is communication failure, therefore at this time
Maintenance cost can be reduced to avoid unnecessary maintenance.If there is no signal transmission on communication line, it is determined that communication line is not just
Often, Maintenance communication route is only needed at this time, is avoided the problem that blindly repairing interior machine or outer machine, is reduced the human cost of maintenance
And frock cost, improve the efficiency and accuracy of after-sales service.
In one embodiment, referring to Fig. 3, after step S2311, further includes:
S300, disconnects the communication line of interior machine and outer machine, and will test device and establish communication link with interior machine and/or outer machine
It connects.
S400 determines communication line event according to whether there is signal to transmit between detection device and interior machine and/or the outer machine
Hinder position.
S410, if the signal transmission between detection device and interior machine is normal, it is determined that the communication line of outer machine breaks down.
S420, if the signal transmission between detection device and outer machine is normal, it is determined that the communication line of interior machine breaks down.
S430, otherwise, it is determined that the communication line of interior machine and outer machine breaks down.
In order to further determine the accurate location to break down on communication line, determine communication line occur communication failure it
Afterwards, the communication line of machine and outer machine in disconnecting, and will test device and interior machine and/outer machine establishes communication connection, while detecting dress
Setting detection, whether it has signal transmission between interior machine and/or outer machine, to determine is that the communication line of interior pusher side goes out on earth with this
There is communication failure in existing communication failure, or outer side communication lines, so that accurate maintenance position is provided, convenient for working after sale
Personnel repair, and improve the efficiency and accuracy of after-sales service.
For example, in a specific embodiment, after communication failure occurs in the communication line for determining air-conditioning, in disconnection
The communication line of machine and outer machine, will test device and interior machine is established and communicated to connect, and it is logical with interior machine to detect it for detection device at this time
Believe whether signal is normal, if normal, it is determined that the failure of the communication line of outer pusher side, if abnormal, then disconnection detection device
With the communication connection of interior machine, it will test device and outer machine established and communicated to connect, detection device detects the signal of communication of itself and outer machine
It is whether normal, if normal, it is determined that side communication lines break down in only, need to only repair the communication line of interior pusher side at this time
, improve maintenance efficiency and accuracy, otherwise, it is determined that the route of interior machine and outer pusher side is abnormal, at this time in pusher side and
The communication line of outer pusher side is both needed to repair, and improves the efficiency and accuracy of maintenance.
In one embodiment, S410a, however, it is determined that when the communication line of outer machine breaks down, issue Fisrt fault alarm
Signal.
S420a, however, it is determined that when the communication line of interior machine breaks down, issue the second fault alarm signal.
S430a, however, it is determined that when the communication line of interior machine and the outer machine breaks down, be simultaneously emitted by Fisrt fault alarm
Signal and the second fault alarm signal.
In one embodiment, S210a, however, it is determined that when the control device of the outer machine of air-conditioning breaks down, issue third event
Hinder alarm signal.
S220a, however, it is determined that when the control device of the interior machine of air-conditioning breaks down, issue the 4th fault alarm signal.
In order to achieve the effect that remind user's air-conditioning communication failure occur in time, the setting alarm dress in detection device
It sets, when the communication line for determining outer machine breaks down, issues Fisrt fault alarm signal, when the communication line for determining interior machine goes out
When existing failure, the second fault alarm signal is issued, when the communication line for determining interior machine and outer machine breaks down, is simultaneously emitted by
Fisrt fault alarm signal and the second fault alarm signal issue third event when the control device for determining outer machine breaks down
Hinder alarm signal, when the control device for determining interior machine breaks down, issues the 4th fault alarm signal.Preferably, the first event
Hinder being all different for alarm signal, the second fault alarm signal, third fault alarm signal and the 4th fault alarm signal, user
Can be determined according to the difference of alarm signal communication failure occur location point, with reach in time to corresponding abort situation into
The effect of row maintenance.
Such as: alarm device is indicator light, and when setting issues Fisrt fault alarm signal, indicator light is shown as feux rouges, hair
Out when the second fault alarm signal, indicator light is shown as green light, and Fisrt fault alarm signal and the second fault alarm signal are simultaneously
When generation, indicator light interval shows feux rouges and green light, certainly, the quantity of indicator light may be it is multiple, each indicator light is only right
A kind of fault alarm signal is answered, such as the first indicator light only issues feux rouges, the second indicator light only issues green light.Third failure is issued to accuse
When alert signal, indicator light is shown as yellow light, when issuing four fault alarm signals, indicator light is shown as blue light, is distinguished with this
Different fault alarm signals, user or maintenance personal determine the location point that failure occurs according to the color that indicator light issues light,
It is simple and convenient, it is easy to implement.Wherein, alarm device may be loudspeaker etc., and loudspeaker issues different sound to distinguish not
Same fault alarm signal.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
In one embodiment, as shown in figure 4, additionally providing a kind of air-conditioning communication failure detection system, which includes:
Detection module 100, for detecting the fault-signal of air-conditioning when air-conditioning communication failure occurs in operation.Judgment module 200,
For judging whether fault-signal is consistent with preset outer machine fault-signal and preset interior machine fault-signal.First determines mould
Block 210, if be consistent for fault-signal with preset outer machine fault-signal, it is determined that the control device of the outer machine of air-conditioning goes out
Existing failure.Second determining module 220, if be consistent for fault-signal with preset interior machine fault-signal, it is determined that air-conditioning
Interior machine control device break down.Third determining module 230, if for fault-signal and preset outer machine fault-signal and
When preset interior machine fault-signal is not met, whether there is signal transmission to determine according on the communication line of machine and outer machine in connecting
Whether communication line is normal.
In the present embodiment, when communication failure occurs in air-conditioning, the fault-signal of air-conditioning is detected, according to preset interior machine failure
Signal and preset outer machine fault-signal determine the generation position of the fault-signal, since interior machine control device and the control of outer machine fill
It is different for setting the signal to break down on the communication line of air-conditioning, so if detecting obtained fault-signal and presetting
Outer machine fault-signal be consistent, it is determined that fault-signal appears in the outer machine control device of air-conditioning, if detection obtains
Fault-signal is consistent with preset interior machine fault-signal, it is determined that and fault-signal appears in the control device of interior machine, if
When the fault-signal and preset outer machine fault-signal and preset interior machine fault-signal that detection obtains are not met, according to communication
Whether there is signal to transmit on route and determines whether communication line is normal, so that communication failure generation location point is accurately positioned, and
Correct repair prompt is provided in tooling, is not in the problem of blindly replacing interior machine control device or outer machine control device, to give
After-sales service offers convenience, and improves after-sales service efficiency and accuracy.
In one embodiment, third determining module 230 includes: judging unit 231, if for fault-signal with it is preset
When outer machine fault-signal and preset interior machine fault-signal are not met, judge to connect on the communication line of outer machine and interior machine whether
There is signal transmission；If so, determining that the signal transmission of communication line is normal；If not, it is determined that the signal transmission of communication line is not
Normally.
In one embodiment, further includes: module 300 is established in disconnection, for transmitting not in the signal for determining communication line
After normal, the communication line of interior machine and outer machine is disconnected, and will test device and communicated to connect with interior machine and/or the foundation of outer machine.Really
Determine abort situation module 400, for according to whether have between detection device and interior machine and/or outer machine signal transmit determine communication line
Road abort situation.4th determining module 410, if the signal transmission between detection device and interior machine is normal, it is determined that outer machine
Communication line break down.5th determining module 420, if just for the signal transmission between detection device and the outer machine
Often, it is determined that the communication line of interior machine breaks down.6th determining module 430, if for detection device and interior machine and outer machine it
Between signal transmission it is abnormal when, it is determined that the communication line of interior machine and outer machine breaks down.
In one embodiment, further includes: Fisrt fault alarm module 410a, for going out in the communication line of determining outer machine
When existing failure, Fisrt fault alarm signal is issued.Second fault warning module 420a, the communication line for the machine in determining go out
When existing failure, the second fault alarm signal is issued.And when the communication line of machine and outer machine breaks down in determining, the first event
Barrier alarm module 410a and the second fault warning module 420a works simultaneously.
In one embodiment, third fault warning module 210a, for going out in the control device for the outer machine for determining air-conditioning
When existing failure, third fault alarm signal is issued.4th fault warning module 220a, for the control in the interior machine for determining air-conditioning
When device breaks down, the 4th fault alarm signal is issued.
Since the principle that this system solves the problems, such as is similar to a kind of aforementioned air-conditioning communication fault detection method, the system
Implementation may refer to the implementation of preceding method, overlaps will not be repeated.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (6)
1. a kind of air-conditioning communication fault detection method, which is characterized in that the described method includes:
When air-conditioning communication failure occurs in operation, the fault-signal of the air-conditioning is detected；
Judge whether the fault-signal is consistent with preset outer machine fault-signal and preset interior machine fault-signal；
If the fault-signal is consistent with the preset outer machine fault-signal, it is determined that the control of the outer machine of the air-conditioning
Device breaks down；
If the fault-signal is consistent with the preset interior machine fault-signal, it is determined that the control of the interior machine of the air-conditioning
Device breaks down；
If the fault-signal and the preset outer machine fault-signal and the preset interior machine fault-signal are not met,
Determine whether the communication line is normal according to whether there is signal to transmit on the communication line for connecting the interior machine and the outer machine,
Include:
Judge whether there is signal transmission on the communication line；
If so, determining that the signal transmission of the communication line is normal；
If not, it is determined that the signal transmission of the communication line is abnormal；
After the signal for determining the communication line transmits abnormal step, further includes:
The communication line of the interior machine and the outer machine is disconnected, and will test device and the interior machine and/or the outer machine foundation
Communication connection；
Communication line failure is determined according to whether there is signal to transmit between the detection device and the interior machine and/or the outer machine
Position；
If the signal transmission between the detection device and the interior machine is normal, it is determined that event occurs in the communication line of the outer machine
Barrier；
If the signal transmission between the detection device and the outer machine is normal, it is determined that event occurs in the communication line of the interior machine
Barrier；
If the signal transmission between detection device and interior machine and outer machine is abnormal, it is determined that the interior machine and the outer machine
Communication line breaks down.
2. air-conditioning communication fault detection method according to claim 1, which is characterized in that if it is determined that the communication of the outer machine
When route breaks down, Fisrt fault alarm signal is issued；
If it is determined that issuing the second fault alarm signal when the communication line of the interior machine breaks down；
If it is determined that being simultaneously emitted by the Fisrt fault alarm letter when communication line of the interior machine and the outer machine breaks down
Number and second fault alarm signal.
3. air-conditioning communication fault detection method according to claim 1 or 2, which is characterized in that if it is determined that the air-conditioning
When the control device of outer machine breaks down, third fault alarm signal is issued；
If it is determined that issuing the 4th fault alarm signal when the control device of the interior machine of the air-conditioning breaks down.
4. a kind of air-conditioning communication failure detection system, which is characterized in that the system comprises:
Detection module, for detecting the fault-signal of the air-conditioning when air-conditioning communication failure occurs in operation；
Judgment module, for judge the fault-signal whether with preset outer machine fault-signal or preset interior machine fault-signal
It is consistent；
First determining module, if be consistent for the fault-signal with the preset outer machine fault-signal, it is determined that institute
The control device for stating the outer machine of air-conditioning breaks down；
Second determining module, if be consistent for the fault-signal with the preset interior machine fault-signal, it is determined that institute
The control device for stating the interior machine of air-conditioning breaks down；
Third determining module, if for the fault-signal and the preset outer machine fault-signal and the preset interior machine event
When barrier signal is not met, according to whether thering is signal transmission to determine on the communication line for connecting the interior machine and the outer machine
Whether communication line is normal；
The third determining module includes judging unit, for judging whether there is signal transmission on the communication line；If so,
Determine that the signal transmission of the communication line is normal；If not, it is determined that the signal transmission of the communication line is abnormal；
The system also includes:
Module is established in disconnection, for disconnecting the interior machine and institute after the signal transmission for determining the communication line is abnormal
The communication line of outer machine is stated, and will test device and the interior machine and/or the outer machine foundation communication connection；
Abort situation module is determined, for whether having letter according between the detection device and the interior machine and/or the outer machine
Number transmit determine communication line abort situation；
4th determining module, if the signal transmission between the detection device and the interior machine is normal, it is determined that described outer
The communication line of machine breaks down；
5th determining module, if the signal transmission between the detection device and the outer machine is normal, it is determined that in described
The communication line of machine breaks down；
6th determining module, if the signal transmission between the detection device and the interior machine and the outer machine is abnormal
When, it is determined that the communication line of the interior machine and the outer machine breaks down.
5. air-conditioning communication failure detection system according to claim 4, which is characterized in that further include:
Fisrt fault alarm module, for issuing Fisrt fault alarm when the communication line for determining the outer machine breaks down
Signal；
Second fault warning module, for issuing the second fault warning when the communication line for determining the interior machine breaks down
Signal；And
When determining that the communication line of the interior machine and the outer machine breaks down, the Fisrt fault alarm module and described
Second fault warning module works simultaneously.
6. air-conditioning communication failure detection system according to claim 4 or 5, which is characterized in that further include:
Third fault warning module, for issuing third event in the control device failure for the outer machine for determining the air-conditioning
Hinder alarm signal；
4th fault warning module, for issuing the 4th event in the control device failure for the interior machine for determining the air-conditioning
Hinder alarm signal.
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| US10341526B2 (en) * | 2016-11-02 | 2019-07-02 | Konica Minolta, Inc. | Facsimile communication device, line disconnection judgment method and non-transitory recording medium storing a computer readable program |
| CN108592293B (en) * | 2018-04-28 | 2020-08-04 | 四川虹美智能科技有限公司 | Air conditioner fault detection device and detection method |
| CN110749046B (en) * | 2019-10-31 | 2023-08-25 | 广东美的制冷设备有限公司 | Air conditioner control method and device, air conditioner and computer readable storage medium |
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