CN102032650B - Air conditioner monitoring system - Google Patents

Air conditioner monitoring system Download PDF

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CN102032650B
CN102032650B CN201010620216.XA CN201010620216A CN102032650B CN 102032650 B CN102032650 B CN 102032650B CN 201010620216 A CN201010620216 A CN 201010620216A CN 102032650 B CN102032650 B CN 102032650B
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air
temperature
conditioning equipment
conditioner
microprocessor
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CN102032650A (en
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彭岸东
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Guangdong Darongshu Information Science & Technology Co Ltd
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Guangdong Darongshu Information Science & Technology Co Ltd
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Abstract

The invention discloses an air conditioner monitoring system, which is used for detecting the failure problem of air conditioning equipment. The system comprises an air inlet temperature sensor, an air outlet temperature sensor, a microprocessor, a transmitter and an alarm device, wherein the air inlet temperature sensor is used for detecting the temperature of the air inlet of the air conditioning equipment; the air outlet temperature sensor is used for detecting the temperature of the air outlet of the air conditioning equipment; the microprocessor is used for acquiring and processing detection results of the air inlet temperature sensor and the air outlet temperature sensor so as to generate a control signal and/or an alarm signal; the transmitter is used for transmitting a control signal output by the microprocessor to the air conditioning equipment; and the alarm device is used for receiving an alarm signal output by the microprocessor so as to make an alarm. In the air conditioner monitoring system, the temperature difference between the air inlet and the air outlet of the air conditioning equipment is detected by double sensors, so that abnormity of an air conditioning system can be detected quickly, waste of electric energy caused by continued use of abnormal air conditioning equipment is avoided and the aims of saving energy and protecting the environment are fulfilled.

Description

Monitoring air-conditioner
Technical field
The present invention relates to a kind of monitoring management system, relate more specifically to a kind of monitoring air-conditioner.
Background technology
Along with the develop rapidly of the IT informatization of modern society's every profession and trade with deepen continuously, the quantity of middle-size and small-size power machine room is more and more, and the maintenance issues of machine room is more and more paid attention to.Wherein, whether ambient temperature and humidity is normal, and the normal operation of machine room is had a great impact.In order to make machine room have the ambient temperature and humidity that can realize normal operation, a kind of effective way is that precision air conditioner is installed in machine room.Yet because the price of precision air conditioner is relatively high, can not be used widely.Therefore, most of machine rooms are still used common civilian or commercial wall hanging and cabinet air-conditioner.Yet, these civil air conditioners or business air conditioner, unlike precision air conditioner, there is self measuring ability and remote monitoring function, in the unattended situation of machine room, when the problem that air-conditioning self goes wrong or civil power occur to have a power failure etc. and can find in time and solve, as no, not only can cause a large amount of wastes of electric energy, but also can affect the normal operation of machine room.
In order to address the above problem, on market, occurred that monitoring air-conditioner is to monitor in real time air-conditioning.Yet existing these monitoring air-conditioners are all to judge that by detecting the electric current of single environment temperature and refrigeration compressor whether air-conditioning equipment is normal, and, compressor not enough for refrigeration medium or associated components damages, condenser heat radiation is bad or the FAQs such as blower fan damage produces refrigeration are abnormal, can not detect well.Visible, existing monitoring air-conditioner has significant limitation, and it cannot detect air-conditioning equipment completely because of the anomaly that a variety of causes produces, and while using such monitoring system to monitor air-conditioning, still can cause the waste of electric energy.
Therefore, urgently a kind of can fast detecting to because the abnormal monitoring air-conditioner of the caused air-conditioning equipment of variety of issue is to overcome above-mentioned defect.
Summary of the invention
The object of the present invention is to provide a kind of monitoring system of monitoring the air-conditioning of normal tape remote control, thereby reach the object of energy-conserving and environment-protective.
To achieve these goals, the present invention proposes a kind of monitoring air-conditioner, failure problems for detection of air-conditioning equipment, it comprises intake air temperature sensor, air outlet temperature sensor, microprocessor, transmitter and alarm, described intake air temperature sensor is for detection of the intake air temperature of described air-conditioning equipment, described air outlet temperature sensor is for detection of the air outlet temperature of described air-conditioning equipment, the testing result that described microprocessor is used for obtaining and process described intake air temperature sensor and described air outlet temperature sensor is to produce control signal and/or alarm signal, wherein said microprocessor comprises fault detect pattern, described in described fault detect pattern, microprocessor calculates the temperature gap of described intake air temperature and air outlet temperature, the temperature gap of intake air temperature and turn-on temperature, and be less than default temperature gap at the temperature gap of described intake air temperature and air outlet temperature, and the temperature gap of described intake air temperature and turn-on temperature produces described alarm signal while being greater than 2 degrees Celsius, described transmitter is for being sent to described air-conditioning equipment by the control signal of described microprocessor output, the alarm signal that described alarm is used for receiving described microprocessor output is to produce alarm.
Compared with prior art, monitoring air-conditioner of the present invention adopts dual sensor to detect respectively the temperature of air-conditioning equipment air inlet and air outlet, and then according to entering, the temperature difference feature of air outlet judges whether air-conditioning equipment occurs extremely fast, because no matter air-conditioning equipment is which kind of reason to cause that refrigeration is abnormal because of, its anomaly showing all can entering by air-conditioning equipment, outlet temperature embodies, therefore, monitoring air-conditioner of the present invention can detect the fault that air-conditioning equipment causes because of various factors, thereby can avoid air-conditioning equipment in the situation that there is poor refrigerating efficiency, still to continue to use and cause electric energy to be wasted, realized good effects of energy conservation and environmental protection.
In a preferred embodiment of the present invention, described monitoring air-conditioner also comprises receiver, and the remote control command signal that described receiver sends for the remote controller that receives described air-conditioning equipment calls for described microprocessor.
Preferably, described receiver is infrared receiving terminal.
Preferably, described monitoring air-conditioner also comprises PORT COM, and described PORT COM is for being connected described monitoring air-conditioner to realize with outer computer operated from a distance.
Preferably, described transmitter is infrared transmitting tube.
Preferably, described alarm is buzzer.
By following description also by reference to the accompanying drawings, it is more clear that the present invention will become, and these accompanying drawings are used for explaining embodiments of the invention.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the theory diagram of monitoring air-conditioner one embodiment of the present invention.
Fig. 2 is the operation principle flow chart of monitoring air-conditioner shown in Fig. 1.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in embodiment is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the present embodiment monitoring air-conditioner is for detection of the failure problems of air-conditioning equipment, and it comprises intake air temperature sensor 11, air outlet temperature sensor 12, microprocessor 13, transmitter 14 and alarm 15.Described intake air temperature sensor 11 is arranged at the air inlet of air-conditioning equipment to detect the intake air temperature of described air inlet, and described air outlet temperature sensor 12 is arranged at the air outlet of air-conditioning equipment to detect the air outlet temperature of described air outlet.13 of described microprocessors for the testing result of obtaining and process described intake air temperature sensor 11 and described air outlet temperature sensor 12 to produce control signal and/or alarm signal, wherein said microprocessor 13 comprises fault detect pattern, microprocessor described in described fault detect pattern 13 calculates the temperature gap of described intake air temperature and air outlet temperature, the temperature gap of intake air temperature and turn-on temperature, and be less than default temperature gap at the temperature gap of described intake air temperature and air outlet temperature, and the temperature gap of described intake air temperature and turn-on temperature produces described alarm signal while being greater than 2 degrees Celsius.In the present embodiment, described transmitter 14 is infrared transmitting tube, it is for being sent to described air-conditioning equipment by the control signal of described micro-processing 13 outputs, and described alarm 15 be buzzer, its for the alarm signal that receives described microprocessor 13 outputs with the alarm of generation buzzer.Particularly, the microprocessor 13 of the present embodiment is to judge whether to send and to control instruction to air-conditioning equipment by detecting the air inlet of air-conditioning equipment and the temperature of air outlet, if desired, can send relevant ultra-red order by infrared transmitting tube and start corresponding function to control air-conditioning equipment, send after instruction and will detect relevant temperature whether in normal range (NR) at interval of a period of time, as no, can send warning message and make alarm produce alarm.
In the present embodiment, described monitoring air-conditioner also comprises receiver 16, and preferably, described receiver 16 is infrared receiving terminal, and it calls for described microprocessor for the remote control command signal that receives the remote controller of described air-conditioning equipment and send.When first use monitoring air-conditioner of the present invention, user only need carry out learning manipulation facing to monitoring air-conditioner of the present invention by the remote controller of detected air-conditioning equipment, monitoring air-conditioner of the present invention can receive remote control command signal by described receiver 16, wherein, described remote control command signal can comprise the command signal of operation mode (as refrigeration, heating or automatic mode), temperature adjusting and the wind speed adjusting etc. of controlling air-conditioning equipment.Meanwhile, the monitoring air-conditioner of the present embodiment also comprises PORT COM 17, and described PORT COM is for being connected described monitoring air-conditioner to realize with outer computer operated from a distance.
Fig. 2 is the operation principle flow chart of the present embodiment monitoring air-conditioner.Below in conjunction with Fig. 1 and Fig. 2, describe the operation principle of the present embodiment monitoring air-conditioner in detail.
In the present embodiment, the turn-on temperature of supposing air-conditioning equipment is Tset, ceiling temperature be Tmax(when environment temperature is during higher than this temperature, Auto Power On), lower limit temperature be Tmin(when environment temperature is during lower than this temperature, automatic shutdown).In addition, in the present embodiment, be that the refrigeration system of setting air-conditioning equipment is when refrigeration compressor turns round, normal intake air temperature Tin should be than air outlet temperature T out large 5 ℃ above (this temperature gap can be set according to actual needs), when refrigeration compressor shuts down, the temperature difference of intake air temperature Tin and turn-on temperature Tset should 2 ℃ (perfect condition is that intake air temperature is to equal turn-on temperature with interior, but because there is error in air-conditioning equipment and detection system, the present embodiment is chosen to be 2 ℃ by this temperature error values and take interior as normal), as otherwise be judged as refrigeration system and have fault.
As shown in Figure 2, first system judges whether to be provided with incoming call power up function after starting, if, by 14 pairs of air-conditioning equipments of transmitter, send start-up command so that air-conditioning enters open state, simultaneity factor enters fault detect pattern, and if not, system is carried out cycle detection pattern.Wherein, incoming call power up function is that air-conditioning equipment can be realized Auto Power On for incoming call in the situation that again after there is power-off at civil power, and this function is according to actual needs and the setting selected of carrying out.
In fault detect pattern, at 14 pairs of air-conditioning equipments of transmitter, send after start-up command, (this time delay is in order to wait for that compressor of air conditioner starts and enters normal operating conditions need to wait for 3.5 minutes, can change according to actual needs), then inquire about the detected intake air temperature Tin of intake air temperature sensor 11 and air outlet temperature sensor 12 and air outlet temperature T out and judge, if being greater than 5 ℃ (meeting the condition of Tin-Tout>5 ℃), the temperature gap of air inlet and air outlet represents to start shooting successfully, if 5 ℃ of the temperature difference deficiencies of inlet and outlet and air outlet, do not represent that fault has necessarily occurred air-conditioning, possible cause is that room temperature has reached cryogenic temperature compressor is shut down, also need to judge the difference of intake air temperature and turn-on temperature, if this difference is greater than 2 ℃ (meeting the condition of Tin-Tset>2 ℃), can judge that so air-conditioning equipment breaks down, alarm 15 is sent to alarm signal, now, 15 of alarms can sound a buzzer to notify user.The difference that ought above-mentionedly judgment result is that start success or intake air temperature and default turn-on temperature is less than 2 ℃ and represents that air-conditioning equipment does not occur extremely, turning back to cycle detection pattern.
In monitoring temperature automatic switching pattern, first need the temperature of comparison intake air temperature and air outlet.When its difference is less than 2 ℃ (meeting the condition of Tin-Tout<2 ℃), judge the not running of air conditioner refrigerating compressor, now intake air temperature and ceiling temperature are compared, if being greater than ceiling temperature (meeting the condition of Tin>Tmax), intake air temperature to air-conditioning equipment transmission start-up command, make it enter open state, otherwise enter cycle detection pattern, start the detection of a new round, when its difference is greater than 2 ℃ (not meeting the condition of Tin-Tout<2 ℃), judge that air conditioner refrigerating compressor is in running, now intake air temperature and lower limit temperature are compared, if intake air temperature is less than lower limit temperature (meeting the condition of Tin<Tmin) and sends shutdown command to air-conditioning equipment, after sending shutdown command, wait for 30 seconds, temperature difference to air inlet and air outlet compares again, if its difference is less than 2 ℃ (meeting the condition of Tin-Tout<2 ℃), judges and shut down successfully, otherwise judge that air-conditioning breaks down, if judgment result is that in previous step intake air temperature is greater than lower limit temperature and turns back to cycle detection pattern.In said temperature monitoring automatic switching pattern; not only realized the detection to air-conditioning equipment failure problems; but also can Intelligent control air-conditioning equipment; to realize at temperature automatic shutdown during lower than default lower limit temperature; when temperature Auto Power On during higher than default ceiling temperature, in the situation that guarantee the stable effect that also can realize energy-conserving and environment-protective of environment temperature.
In cycle detection pattern, be provided with the detection of three links, whether the time that is first detection system timing shutdown has arrived, if system time moves to timing shutdown constantly, send shutdown command, then whether successfully detect shutdown, if start arrival constantly is next time waited in success, if failed, with air-condition faults, process.If system time does not arrive timing shutdown constantly, whether the time of detection system timing start-up has arrived, now, if system time runs to the available machine time, send start-up command, system enters fault detect pattern, otherwise enters again monitoring temperature automatic switching pattern.
As mentioned above, monitoring air-conditioner of the present invention adopts dual sensor to detect respectively the temperature of air-conditioning equipment air inlet and air outlet, and then according to entering, the temperature difference feature of air outlet judges whether air-conditioning equipment occurs extremely fast, because no matter air-conditioning equipment is which kind of reason to cause that refrigeration is abnormal because of, its anomaly showing all can entering by air-conditioning equipment, outlet temperature embodies, therefore, monitoring air-conditioner of the present invention can detect the fault that air-conditioning equipment causes because of various factors, thereby can avoid air-conditioning equipment in the situation that there is poor refrigerating efficiency, still to continue to use and cause electric energy to be wasted, in addition, native system has also been realized timed startup/shutdown function and monitoring temperature automatic opening/closing function, realized good effects of energy conservation and environmental protection.
It should be noted that, the concrete value of above-mentioned turn-on temperature, ceiling temperature, lower limit temperature and each temperature difference all can be set according to actual needs.
The concrete structure of other modules of monitoring air-conditioner involved in the present invention, is well known to those of ordinary skill in the art, at this, is no longer described in detail.
Invention has been described for above combination most preferred embodiment, but the present invention is not limited to the embodiment of above announcement, and should contain the various modifications of carrying out according to essence of the present invention, equivalent combinations.

Claims (6)

1. a monitoring air-conditioner, the failure problems for detection of air-conditioning equipment, is characterized in that, comprising:
Intake air temperature sensor, for detection of the intake air temperature of described air-conditioning equipment;
Air outlet temperature sensor, for detection of the air outlet temperature of described air-conditioning equipment;
Microprocessor, the testing result that is used for obtaining and process described intake air temperature sensor and described air outlet temperature sensor is to produce control signal and/or alarm signal, wherein said microprocessor comprises fault detect pattern, described in described fault detect pattern, microprocessor calculates the temperature gap of described intake air temperature and air outlet temperature, the temperature gap of intake air temperature and turn-on temperature, and be less than default temperature gap at the temperature gap of described intake air temperature and air outlet temperature, and the temperature gap of described intake air temperature and turn-on temperature produces described alarm signal while being greater than 2 degrees Celsius,
Transmitter, for being sent to described air-conditioning equipment by the control signal of described microprocessor output;
Alarm, for the alarm signal that receives the output of described microprocessor to produce alarm.
2. monitoring air-conditioner as claimed in claim 1, is characterized in that: also comprise receiver, described receiver calls for described microprocessor for the remote control command signal that receives the remote controller of described air-conditioning equipment and send.
3. monitoring air-conditioner as claimed in claim 2, is characterized in that: described receiver is infrared receiving terminal.
4. monitoring air-conditioner as claimed in claim 1, is characterized in that: also comprise PORT COM, described PORT COM is for being connected described monitoring air-conditioner to realize with outer computer operated from a distance.
5. monitoring air-conditioner as claimed in claim 1, is characterized in that: described transmitter is infrared transmitting tube.
6. monitoring air-conditioner as claimed in claim 1, is characterized in that: described alarm is buzzer.
CN201010620216.XA 2010-12-31 2010-12-31 Air conditioner monitoring system Active CN102032650B (en)

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CN106871378B (en) * 2017-03-29 2019-12-20 广东美的暖通设备有限公司 Method and device for judging poor heat exchange of air conditioner
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2909079Y (en) * 2006-05-11 2007-06-06 傅孔阳 Control system of air conditioner
CN101000171A (en) * 2006-12-31 2007-07-18 广州金关节能科技发展有限公司 Air-conditioning energy-saving monitoring system of base station
KR20070101701A (en) * 2006-04-12 2007-10-17 한국델파이주식회사 Air pollution-alarming system interlocking an air-conditioner
CN101256086A (en) * 2008-03-18 2008-09-03 郑州春泉暖通节能设备有限公司 Charging method and charging device for fixed air-quantity temperature difference type central air-conditioning
CN201122346Y (en) * 2007-12-08 2008-09-24 海信(山东)空调有限公司 Air conditioner testing apparatus
CN201944987U (en) * 2010-12-31 2011-08-24 广东大榕树信息科技有限公司 Air-conditioner monitoring equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070101701A (en) * 2006-04-12 2007-10-17 한국델파이주식회사 Air pollution-alarming system interlocking an air-conditioner
CN2909079Y (en) * 2006-05-11 2007-06-06 傅孔阳 Control system of air conditioner
CN101000171A (en) * 2006-12-31 2007-07-18 广州金关节能科技发展有限公司 Air-conditioning energy-saving monitoring system of base station
CN201122346Y (en) * 2007-12-08 2008-09-24 海信(山东)空调有限公司 Air conditioner testing apparatus
CN101256086A (en) * 2008-03-18 2008-09-03 郑州春泉暖通节能设备有限公司 Charging method and charging device for fixed air-quantity temperature difference type central air-conditioning
CN201944987U (en) * 2010-12-31 2011-08-24 广东大榕树信息科技有限公司 Air-conditioner monitoring equipment

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