CN104181382A - Heating tube detection method and system - Google Patents

Heating tube detection method and system Download PDF

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Publication number
CN104181382A
CN104181382A CN201410369292.6A CN201410369292A CN104181382A CN 104181382 A CN104181382 A CN 104181382A CN 201410369292 A CN201410369292 A CN 201410369292A CN 104181382 A CN104181382 A CN 104181382A
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CN
China
Prior art keywords
air conditioner
heat
current
pilot lamp
generating pipe
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Application number
CN201410369292.6A
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Chinese (zh)
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CN104181382B (en
Inventor
庞彬
宋明岑
杜涛
黄鸿发
王伟超
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN201410369292.6A priority Critical patent/CN104181382B/en
Publication of CN104181382A publication Critical patent/CN104181382A/en
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Publication of CN104181382B publication Critical patent/CN104181382B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention provides a method for detecting a heating tube, which is used for detecting the performance of the heating tube on an air conditioner and comprises the following steps: s1, detecting the working current of the air conditioner in real time by a current sensor; s2, the CPU judges whether the working current of the air conditioner is larger than or equal to a first preset current, if so, the CPU controls a first indicator light to be on; if not, the CPU controls the second indicating lamp to light and the alarm gives an alarm. The invention also relates to a detection system of the heating tube. According to the method and the system for detecting the heating tube, whether the working current of the air conditioner exceeds the first preset current value or not is detected and judged in real time, so that the automatic detection of the heating tube is realized, and the detection efficiency of the heating tube is improved. Meanwhile, the detection precision of the heating tube is improved, the fault of the air conditioner caused by the fact that the heating tube does not work is avoided, and the outgoing quality of the air conditioner is improved.

Description

The detection method of heat-generating pipe and system
Technical field
The present invention relates to detection mode technical field, particularly relate to a kind of detection method and system of heat-generating pipe.
Background technology
In colder area, the heating effect of cooling-and-warming heat pump machine cannot reach desirable state fast, so assist the effect of heat-generating pipe very large, and heat-generating pipe all there will be abnormal damage and can not normally work from supplied materials unloading, transportation turnover and assembling process.
General heat-generating pipe detection method is to adopt artificial feel leaving air temp, then according to the mode of one of percentage ratio sampling observation, detects, and the detection efficiency of this detection mode is low and accuracy is poor, can accurately not judge whether heat-generating pipe starts.
Summary of the invention
In view of the present situation of prior art, the object of the present invention is to provide a kind of detection method and system of heat-generating pipe, can judge accurately whether heat-generating pipe normally works, and detection efficiency is high.
For achieving the above object, the present invention adopts following technical scheme:
A detection method for heat-generating pipe, the Performance Detection for heat-generating pipe on air conditioner, comprises the steps:
S1, current sensor detect the working current of air conditioner in real time;
S2, CPU judge whether the working current of air conditioner is more than or equal to the first predetermined current, if so, described CPU to control described the first pilot lamp bright; If not, it is bright that described CPU controls described the second pilot lamp, described alarm equipment alarm.
In an embodiment, before step S2, also comprise the steps: therein
Described CPU judges whether the working current of air conditioner is more than or equal to the second predetermined current, if so, enters step S2 and described CPU and controls timer and start timing; If not, described CPU continues to judge whether the working current of air conditioner is more than or equal to the second predetermined current.
In an embodiment, step S2 also comprises the steps: therein
In the first Preset Time, when the working current of described CPU judgement air conditioner is more than or equal to described the first predetermined current, it is bright that described CPU controls described the first pilot lamp; Otherwise it is bright that described CPU controls described the second pilot lamp, described alarm equipment alarm.
In an embodiment, step S2 also comprises the steps: therein
When the working current of air conditioner is more than or equal to described the first predetermined current, described CPU judges whether the working current of air conditioner continues the second Preset Time, if, it is bright that described CPU controls described the first pilot lamp, if not, it is bright that described CPU controls described the second pilot lamp, described alarm equipment alarm.
In an embodiment, described the first predetermined current is 2.5 amperes therein, and described the second predetermined current is 0.02 ampere.
In an embodiment, described the first Preset Time is 15 seconds therein.
In an embodiment, described the second Preset Time is 2 seconds therein.
The invention still further relates to a kind of detection system of heat-generating pipe, for the detection method of the heat-generating pipe described in above-mentioned any one,
Comprise that described the first pilot lamp, described the second pilot lamp and described alarm are connected to respectively described CPU for detecting in real time current sensor, CPU, the first pilot lamp, the second pilot lamp and the alarm of the working current of air conditioner;
The input end of described current sensor is connected to the operating voltage of air conditioner by power lead, the output terminal of described current sensor is connected to described CPU; Described current sensor is sent to described CPU by the working current of the air conditioner detecting;
Described CPU is for judging whether the working current of air conditioner is more than or equal to the first predetermined current, if so, described CPU to control described the first pilot lamp bright; If not, it is bright that described CPU controls described the second pilot lamp, described alarm equipment alarm.
In an embodiment, also comprise for showing the display device of the working current of air conditioner therein.
In an embodiment, described CPU also comprises the timer for timing therein.
In an embodiment, described CPU is single-chip microcomputer, DSP or PLC controller therein.
The detection method of heat-generating pipe of the present invention and system, by real-time detection and judge that whether the working current of air conditioner surpasses the first predetermined current value, the robotization that has realized heat-generating pipe detects, and has improved the detection efficiency of heat-generating pipe.Meanwhile, improved the accuracy of detection of heat-generating pipe, the fault of having avoided air conditioner not work and cause because of heat-generating pipe, has improved the outgoing of air conditioner.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of detection method one embodiment of heat-generating pipe of the present invention;
Fig. 2 is the schematic diagram of detection system one embodiment of heat-generating pipe of the present invention.
Embodiment
In order to make technical scheme of the present invention clearer, below in conjunction with accompanying drawing, the detection method of heat-generating pipe of the present invention and system are described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain that the present invention is not intended to limit the present invention.
Referring to Fig. 1 to Fig. 2, as shown in Figure 1, a kind of detection method of heat-generating pipe, the Performance Detection for heat-generating pipe on air conditioner, comprises the steps:
S1, current sensor detect the working current of air conditioner in real time; In the present embodiment, the input end of current sensor connects the operating voltage of air conditioner by power lead, for detecting in real time the working current of air conditioner; The output terminal of current sensor is connected to CPU (Central Processing Unit, central processing unit), and current sensor is for being sent to CPU by the working current of the air conditioner detecting.
S2, CPU judge whether the working current of air conditioner is more than or equal to the first predetermined current, if so, CPU to control the first pilot lamp bright, if not, it is bright that CPU controls the second pilot lamp, alarm equipment alarm.
The power of heat-generating pipe is generally in 800W left and right, add the power 60W left and right of the motor of air conditioner, therefore, under heating mode, the power of air conditioner is 860W left and right, and the working current that can obtain air conditioner according to Ohm law I=U/R is 860W ÷ 220V=3.9A.Wherein, the working current of heat-generating pipe is 800W ÷ 220V=3.6A; The working current of motor is 60W ÷ 220V=0.3A.Therefore, can judge by the working current of real-time monitoring air conditioner whether heat-generating pipe works.
In the present embodiment, the first predetermined current is 2.5 amperes, and in other embodiments, the current value of the first predetermined current can also adopt other possible current values.If the working current of air conditioner is more than or equal to 2.5 amperes, illustrate that heat-generating pipe normally works, it is bright that CPU controls the first pilot lamp.If the working current of air conditioner is less than 2.5 amperes, illustrate that heat-generating pipe exists abnormal, it is bright that CPU controls the second pilot lamp, alarm equipment alarm.
In the present embodiment, the first pilot lamp is green LED lamp, and the second pilot lamp is red LED lamp, and alarm is hummer.In other embodiments, the first pilot lamp and the second pilot lamp can also be other pilot lamp, and alarm can also be other voice devices.
As a kind of embodiment, before step S2, also comprise the steps:
CPU judges whether the working current of air conditioner is more than or equal to the second predetermined current, if so, enters step S2 and CPU and controls timer and start timing; If not, CPU continues to judge whether the working current of air conditioner is more than or equal to the second predetermined current.In the present embodiment, the current value of the second predetermined current is 0.02 ampere (20 milliamperes), and in other embodiments, the current value of the second predetermined current can also adopt other possible current values.When the working current of air conditioner is more than or equal to 20 milliamperes (0.02 ampere), enters step S2 and timer and start to start cumulative timing from t0=0s.When the working current of air conditioner is less than 20 MAHs, CPU continues to judge whether the working current of air conditioner is more than or equal to the second predetermined current, until the working current of air conditioner enters step S2 while being more than or equal to the second predetermined current again.
More preferably, step S2 also comprises the steps:
Within first default time, when the working current of CPU judgement air conditioner is more than or equal to the first predetermined current, it is bright that CPU controls the first pilot lamp; Otherwise it is bright that CPU controls the second pilot lamp, alarm equipment alarm.In the present embodiment, the first Preset Time is 15 seconds, and in other embodiments, Preset Time can also adopt other possible numerical value.When time of timer is within the first Preset Time 15 seconds, the working current of CPU judgement air conditioner is more than or equal to 2.5 amperes, and now, it is bright that CPU controls the first pilot lamp, illustrates that this heat-generating pipe can normally work, and heat-generating pipe is qualified.When the time of timer, surpass the first Preset Time 15s, CPU does not still judge that the working current of air conditioner is more than or equal to 2.5 amperes, and it is bright that CPU controls the second pilot lamp, and alarm equipment alarm illustrates that this heat-generating pipe is defective.
More preferably, step S2 also comprises the steps:
When the working current of air conditioner is more than or equal to the first predetermined current, CPU judges that whether the working current of air conditioner continues the second Preset Time, if so, CPU to control the first pilot lamp bright, if not, it is bright that CPU controls the second pilot lamp, alarm equipment alarm.In the present embodiment, the second Preset Time is 2s.When the working current of air conditioner is more than or equal to 2.5 amperes and continue after 2 seconds, it is bright that CPU controls the first pilot lamp, and it is bright that CPU controls green LED lamp, illustrates that heat-generating pipe can normally work, and this heat-generating pipe is qualified.When the working current of air conditioner is less than 2.5 amperes, or there is the phenomenon of saltus step (for example, the working current of air conditioner is from 4.0A saltus step to 0.5A) in the working current of air conditioner, and it is bright that CPU controls the second pilot lamp, and red LED lamp is bright, alarm equipment alarm.Now, illustrate that this heat-generating pipe is defective, by sound and light alarm, remind tester, improved man-machine interaction.
As shown in Figure 2, the invention still further relates to a kind of detection system of heat-generating pipe, the detection method that is used for the heat-generating pipe of above-mentioned arbitrary embodiment, comprise that the first pilot lamp, the second pilot lamp and alarm are connected to respectively the CPU of institute for detecting in real time current sensor 1, CPU2, the first pilot lamp, the second pilot lamp and the alarm of the working current of air conditioner.The input end of current sensor 1 is connected to the operating voltage of air conditioner by power lead, the output terminal of current sensor 1 is connected to CPU2.Current sensor 1 is sent to described CPU2 by the working current of the air conditioner detecting; CPU2 is for judging whether the working current of air conditioner is more than or equal to the first predetermined current, if so, CPU2 to control the first pilot lamp bright; If not, it is bright that CPU2 controls the second pilot lamp, alarm equipment alarm.
More preferably, CPU2 is other controllers such as single-chip microcomputer, DSP or PLC controller.In the present embodiment, CPU2 is single-chip microcomputer, and current sensor, the first pilot lamp, the second pilot lamp and alarm are connected to respectively the I/O port of single-chip microcomputer.Preferably, CPU2 also comprises the timer for timing.In the present embodiment, the first pilot lamp is green LED lamp, and the second pilot lamp is red LED lamp.More preferably, alarm is hummer.In other embodiments, alarm can also be other voice devices.
As a kind of embodiment, the detection system of this heat-generating pipe also comprises for showing the display device 3 of the working current of air conditioner.Like this, tester can judge intuitively by display device.More preferably, this display device can be LCD display or charactron etc.In the present embodiment, this display device adopts charactron, and the pin of charactron is connected to the I/O port on CPU2 by data bus.
The detection method of heat-generating pipe of the present invention and system, by real-time detection and judge that whether the working current of air conditioner surpasses the first predetermined current value, the robotization that has realized heat-generating pipe detects, and has improved the detection efficiency of heat-generating pipe.Meanwhile, improved the accuracy of detection of heat-generating pipe, the fault of having avoided air conditioner not work and cause because of heat-generating pipe, has improved the outgoing of air conditioner.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (11)

1. a detection method for heat-generating pipe, the Performance Detection for heat-generating pipe on air conditioner, is characterized in that, comprises the steps:
S1, current sensor detect the working current of air conditioner in real time;
S2, CPU judge whether the working current of air conditioner is more than or equal to the first predetermined current, if so, described CPU to control the first pilot lamp bright; If not, it is bright that described CPU controls the second pilot lamp, alarm equipment alarm.
2. the detection method of heat-generating pipe according to claim 1, is characterized in that, before step S2, also comprises the steps:
Described CPU judges whether the working current of air conditioner is more than or equal to the second predetermined current, if so, enters step S2 and described CPU and controls timer and start timing; If not, described CPU continues to judge whether the working current of air conditioner is more than or equal to the second predetermined current.
3. the detection method of heat-generating pipe according to claim 2, is characterized in that, step S2 also comprises the steps:
In the first Preset Time, when the working current of described CPU judgement air conditioner is more than or equal to described the first predetermined current, it is bright that described CPU controls described the first pilot lamp; Otherwise it is bright that described CPU controls described the second pilot lamp, described alarm equipment alarm.
4. the detection method of heat-generating pipe according to claim 1, is characterized in that, step S2 also comprises the steps:
When the working current of air conditioner is more than or equal to described the first predetermined current, described CPU judges whether the working current of air conditioner continues the second Preset Time, if, it is bright that described CPU controls described the first pilot lamp, if not, it is bright that described CPU controls described the second pilot lamp, described alarm equipment alarm.
5. the detection method of heat-generating pipe according to claim 2, is characterized in that:
Described the first predetermined current is 2.5 amperes, and described the second predetermined current is 0.02 ampere.
6. the detection method of heat-generating pipe according to claim 3, is characterized in that:
Described the first Preset Time is 15 seconds.
7. the detection method of heat-generating pipe according to claim 4, is characterized in that:
Described the second Preset Time is 2 seconds.
8. a detection system for heat-generating pipe, the detection method for the heat-generating pipe described in claim 1-7 any one, is characterized in that:
Comprise that described the first pilot lamp, described the second pilot lamp and described alarm are connected to respectively described CPU for detecting in real time current sensor, CPU, the first pilot lamp, the second pilot lamp and the alarm of the working current of air conditioner;
The input end of described current sensor is connected to the operating voltage of air conditioner by power lead, the output terminal of described current sensor is connected to described CPU; Described current sensor is sent to described CPU by the working current of the air conditioner detecting;
Described CPU is for judging whether the working current of air conditioner is more than or equal to the first predetermined current, if so, described CPU to control described the first pilot lamp bright; If not, it is bright that described CPU controls described the second pilot lamp, described alarm equipment alarm.
9. the detection system of heat-generating pipe according to claim 8, is characterized in that:
Also comprise for showing the display device of the working current of air conditioner.
10. the detection system of heat-generating pipe according to claim 9, is characterized in that:
Described CPU also comprises the timer for timing.
The detection system of 11. heat-generating pipes according to claim 8, is characterized in that:
Described CPU is single-chip microcomputer, DSP or PLC controller.
CN201410369292.6A 2014-07-30 2014-07-30 Heating tube detection method and system Expired - Fee Related CN104181382B (en)

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Application Number Priority Date Filing Date Title
CN201410369292.6A CN104181382B (en) 2014-07-30 2014-07-30 Heating tube detection method and system

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Application Number Priority Date Filing Date Title
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CN104181382B CN104181382B (en) 2017-05-31

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2828829Y (en) * 2005-09-29 2006-10-18 杨广勇 Safety protection current-limitting alarm device
CN201307145Y (en) * 2008-11-21 2009-09-09 深圳市荣德机械设备有限公司 Oven heating pipe thread break detector device
KR20090123406A (en) * 2008-05-28 2009-12-02 한국철도기술연구원 Detecting apparatus and the method of rail damage
CN102061590A (en) * 2009-11-16 2011-05-18 博西华电器(江苏)有限公司 Combined type washing drier system and control method thereof
CN202421283U (en) * 2011-12-27 2012-09-05 珠海格力电器股份有限公司 Split indoor electromechanical heating pipe current detection device
CN102768127A (en) * 2012-08-09 2012-11-07 上海贝洱热系统有限公司 Method and device for detecting low voltage heater of automobile air conditioner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2828829Y (en) * 2005-09-29 2006-10-18 杨广勇 Safety protection current-limitting alarm device
KR20090123406A (en) * 2008-05-28 2009-12-02 한국철도기술연구원 Detecting apparatus and the method of rail damage
CN201307145Y (en) * 2008-11-21 2009-09-09 深圳市荣德机械设备有限公司 Oven heating pipe thread break detector device
CN102061590A (en) * 2009-11-16 2011-05-18 博西华电器(江苏)有限公司 Combined type washing drier system and control method thereof
CN202421283U (en) * 2011-12-27 2012-09-05 珠海格力电器股份有限公司 Split indoor electromechanical heating pipe current detection device
CN102768127A (en) * 2012-08-09 2012-11-07 上海贝洱热系统有限公司 Method and device for detecting low voltage heater of automobile air conditioner

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