CN104635024B - A kind of method of power cord and its monitor current - Google Patents
A kind of method of power cord and its monitor current Download PDFInfo
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- CN104635024B CN104635024B CN201310557253.4A CN201310557253A CN104635024B CN 104635024 B CN104635024 B CN 104635024B CN 201310557253 A CN201310557253 A CN 201310557253A CN 104635024 B CN104635024 B CN 104635024B
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Abstract
The invention discloses a kind of power cord and its methods of monitor current.The power cord includes：Current detection module is connect with firewire or zero curve, for detecting the current value of firewire or zero curve；Control module for obtaining current value from current detection module, and current value and preset current threshold is compared；Alarm module, for generating warning information according to the comparison result of control module, to monitor the current value of power cord in real time；Power supply module for connecting firewire and zero curve, and is connect with current detection module, control module and alarm module respectively, to power to current detection module, control module and alarm module.By the above-mentioned means, the present invention can monitor the current value of power cord in real time, it is excessive to prevent power lead current.
Description
Technical field
The present invention relates to power technique fields, more particularly to a kind of power cord and its method of monitor current.
Background technology
Power distribution unit（Power Distribution Unit, PDU）It is a kind of Advanced Power plate, often applies
Inside cabinet.In computer room and communication hardware field, common PDU is power socket of machine cabinet, usually there is a jack more than 20, is used
In a plurality of power cord of connection.Current PDU voltage/current visualization techniques are internally integrated detection circuit and display mould in PDU
Block, for detecting and showing load total power consumption, circuit total current and the supply voltage of PDU, but can not detection branch electric current
（Electric current on each power cord of access）Size, when total main line electric current is not exceeded, can not prevent branch service cable because
The circuit generated when electric current is excessive is burnt.
Invention content
An embodiment of the present invention provides a kind of power cord and its method of monitor current, for monitoring the electricity of power cord in real time
Stream.
First aspect provides a kind of power cord, and including copper core, copper core includes firewire and zero curve, which also wraps
It includes：Current detection module is connect with firewire or zero curve, for detecting the current value of firewire or zero curve；Control module, for from electricity
It flows detection module and obtains current value, and current value and preset current threshold are compared；Alarm module, for according to control
The comparison result of module generates warning information, to monitor the current value of power cord in real time；Power supply module, for connecting firewire and zero
Line, and being connect respectively with current detection module, control module and alarm module, with to current detection module, control module with
And alarm module power supply.
Realization method with reference to first aspect, in the first possible implementation, preset current threshold include the
One current threshold, the second current threshold, third current threshold and the 4th current threshold, and the first current threshold<Second electric current
Threshold value<Third current threshold<4th current threshold, wherein：When current value is less than or equal to the first current threshold, alarm module
Generate the first warning information；When current value is more than the first current threshold and is less than or equal to the second current threshold, alarm module
Generate the second warning information；When current value is more than the second current threshold and is less than or equal to third current threshold, alarm module
Generate third warning information；When current value is more than third current threshold and is less than or equal to four current thresholds, alarm module
Generate the 4th warning information.
The possible realization method of with reference to first aspect the first, in second of possible realization method, alarm module packet
Display unit is included, for showing the first color according to the first warning information, the second color is shown according to the second warning information, according to
Third warning information shows third color, is flickered according to the 4th warning information and shows the first color, the second color and third color.
The possible realization method of second with reference to first aspect, in the third possible realization method, the first color is
Green, the second color are yellow, and third color is red.
The possible realization method of second with reference to first aspect, in the 4th kind of possible realization method, power cord also wraps
The transparent insulating layer for wrapping up copper core is included, display unit is arranged between copper core and transparent insulating layer.
The possible realization method of with reference to first aspect the first, in the 5th kind of possible realization method, alarm module is also
Including buzzer, buzzer, for being given a warning according to the 4th warning message.
Realization method with reference to first aspect, in the 6th kind of possible realization method, power cord further includes display screen, with
Current detection module connects, for showing current value.
Second aspect provides a kind of method of power cord monitor current, including：Detect the current value of power cord；By electric current
Value is compared with preset current threshold, and generates warning information according to comparison result, to monitor the electric current of power cord in real time
Value.
With reference to the realization method of second aspect, in the first possible implementation, preset current threshold includes the
One current threshold, the second current threshold, third current threshold and the 4th current threshold, the first current threshold<Second current threshold
Value<Third current threshold<4th current threshold generates warning information according to comparison result and includes：If current value is less than or waits
In the first current threshold, the first warning information is generated；If current value is more than the first current threshold and less than or equal to the second electricity
Threshold value is flowed, generates the second warning information；If current value is more than the second current threshold and less than or equal to third current threshold, production
Raw third warning information；If current value is more than third current threshold and less than or equal to the 4th current threshold, generate the 4th and accuse
Alert information.
With reference to the first possible realization method of second aspect, in second of possible realization method, this method is also wrapped
It includes：First color is shown according to the first warning information；Second color is shown according to the second warning information；According to third warning information
Show third color；It is flickered according to the 4th warning information and shows the first color, the second color and third color.
Through the above scheme, the beneficial effects of the invention are as follows：The present invention detects firewire or zero curve by current detection module
Current value, current value and preset current threshold be compared by control module, and alarm module generates announcement according to comparison result
Alert information, can monitor the current value of power cord in real time, excessive to prevent power lead current, and can protect and be connect with power cord
Power supply.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.Wherein：
Fig. 1 is the structural schematic block diagram of the power cord of first embodiment of the invention；
Fig. 2 is the sectional view of power cord in Fig. 1；
Fig. 3 is the circuit diagram of power supply module and current detection module in Fig. 1；
Fig. 4 is the schematic diagram of power cord connection PDU in Fig. 1；
Fig. 5 is the method flow diagram of the monitoring power lead current of first embodiment of the invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment rather than whole embodiments of the present invention.Based on this
Embodiment in invention, those of ordinary skill in the art are obtained every other under the premise of performing creative labour is not made
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is the structural schematic block diagram of power cord provided in an embodiment of the present invention.As shown in Figure 1, power cord 100 includes：
Current detection module 101, control module 102, alarm module 103, power supply module 104 and copper core 201.Wherein, copper core 201 is wrapped
Include firewire 203 and zero curve 204.The copper core 201 can also include ground wire 205.
Current detection module 101 is connect with firewire 203, for detecting the current value of firewire 203, to detect power cord 100
Current value, alternatively, current detection module 101 is connect with zero curve 204, to detect the current value of zero curve 204, the electricity of firewire 203
Flow valuve is identical with the current value of zero curve 204；Control module 102 is connect with current detection module 101, for from current detection module
101 obtain the current value of power cord 100, and current value and preset current threshold are compared；Alarm module 103 and control
Module 102 connects, and comparison result is obtained, and generate warning information according to comparison result from control module 102；Power supply module 104
For connecting the firewire and zero curve, and connect respectively with current detection module 101, control module 102 and alarm module 103
It connects, to power to current detection module 101, control module 102 and alarm module 103.For example, when control module 102 judges
When current value is greater than or equal to current threshold, alarm module 103 generates warning information.Therefore, this implementation can monitor electricity in real time
The current value of source line 100, it is excessive to prevent 100 electric current of power cord, and the power supply being connect with power cord 100 can be protected.
The control module 102 includes processor, and the processor can be digital signal processor（DSP）, special collection
Into circuit（ASIC）, ready-made programmable gate array（FPGA）Or other programmable logic device；The control module can be with
Including memory, the memory is used to store the preset current threshold.
Wherein, preset current threshold preferably include the first current threshold, the second current threshold, third current threshold and
4th current threshold, and the first current threshold<Second current threshold<Third current threshold<4th current threshold.In control module
102 judge current value be less than or equal to the first current threshold when, alarm module 103 generate the first warning information；In control module
102 judge current value be more than the first current threshold and less than or equal to the second current threshold when, alarm module 103 generate second accuse
Alert information；When control module 102 judges current value more than the second current threshold and is less than or equal to third current threshold, alarm
Module 103 generates third warning information；Judge that current value is more than third current threshold and less than or equal to the in control module 102
During four current thresholds, alarm module 103 generates the 4th warning information.In other embodiments of the invention, the common skill in this field
Preset current threshold can be set as multiple current thresholds by art personnel completely.Alarm module 103 further includes display unit
109, the size of the current value for the variation zone independent power source line 100 that display unit 109 passes through color.Wherein, 109 basis of display unit
First warning message shows the first color, and the second color is shown according to the second warning message, and is shown according to third warning message
Three colors flicker according to the 4th warning message and show the first color, the second color and third color.
Power cord 100 further includes the transparent insulating layer 202 for wrapping up copper core 201.As shown in Figure 2, it is preferable that display is single
Member 109 is arranged between copper core 201 and transparent insulating layer 202.
Power supply module 104 is used to obtain power supply from power cord 100, and power supply is converted to operating voltage, to be examined to electric current
It surveys module 101, control module 102 and alarm module 103 and operating voltage is provided.On the basis of power cord 100 shown in Fig. 1,
As shown in figure 3, power supply module 104 obtains power supply for connecting the firewire 203 and zero curve 204, from power cord 100, wherein supplying
Electric module 104 can include transformer 105 and rectification circuit 106, such as rectifier.Specifically, the input terminal of transformer 105
It is connect with the firewire 203 and zero curve 204 of power cord 100, obtains the power supply of power cord 100（Ac high-voltage）, and power supply is converted
For low-voltage（AC low-tension）.Rectification circuit 106 is connect with the output terminal of transformer 105, obtains low-voltage, and low-voltage is turned
It is changed to operating voltage.
Optionally, power supply module 104 further includes switch unit 107, and switch unit 107 is connect with rectification circuit 106, is being supplied
When electric module 104 need not provide operating voltage, switch unit 107 controls power supply module 104 to be stopped；In power supply module 104
When needing to provide operating voltage, switch unit 107 controls power supply module 104 to work.
Optionally, switch unit 107 is manual switch, and manual switch can be used for being turned on and off to single power line 100
Current monitoring.In addition, switch unit 107 can also be remote control switch, can be turned on and off simultaneously to more power cords 100
Current monitoring.
Further, as shown in figure 3, current detection module 101 can include current detecting chip 108 and be connected on fire
The resistance Rs of line 203, wherein current detecting chip 108 are used for the voltage Vs at detection resistance Rs both ends, and according to the following formula meter
Calculate the electric current Is for obtaining resistance RS：
Is=Vs/Rs。
Such as the model INA139 of current detecting chip 108.In other embodiments of the invention, current detection module
101 can be the device that current transformer etc. realizes current detection function, and current detection module 101 can also include power detection
Device, to detect the power of power cord 100.In addition, resistance Rs can also be connected on zero curve 204, to detect the electricity of zero curve 204
Stream.
On the basis of above-described embodiment, as shown in figure 4, power cord 100 further includes plug 301, and pass through plug 301 and connect
It is connected on PDU302.
Optionally, alarm module 103 further includes buzzer 110, for generating warning according to the 4th warning information.
Further, power cord 100 can also include display screen 111, for showing the current value of power cord 100.It is preferred that
Ground, display unit 109 are vacuum fluorescent display screen（Vacuum Fluorescent Display, VFD）.Display unit 109 is logical
The variation of green, yellow and red is crossed to distinguish the size of the current value of power cord 100, i.e. the first color is green, and second
Color is yellow, and third color is red, so that power cord 100 is more beautiful and generous.In other embodiments of the invention, it shows
Show that unit 109 can also be other controllable display screens, display unit 109 can be dodged by other colors or by color in addition
Bright frequency distinguishes the size of the current value of power cord 100.
It is described in detail below according to table 1.
Table 1
| Predetermined current threshold | Display unit | Buzzer |
| First current threshold | Green | Not sounding |
| Second current threshold | Yellow | Not sounding |
| Third current threshold | It is red | Not sounding |
| 4th current threshold | Green, yellow, red flicker | Sounding |
As shown in table 1, when control module 102 judges that current value is less than or equal to the first current threshold, alarm module 103
The first warning information is generated, the first warning information shows green including display unit 109, and Green represents that power cord 100 is negative
It carries smaller；When control module 102 judges current value more than the first current threshold and is less than or equal to the second current threshold, alarm
Module 103 generates the second warning information, and the second warning information includes display unit 109 and shows yellow, and wherein yellow represents power supply
Line 100 loads normally；Judge that current value is more than the second current threshold and less than or equal to third current threshold in control module 102
When, alarm module 103 generates third warning information, and third warning information is displayed in red including display unit 109, wherein red table
It is larger to show that power cord 100 loads；Judge that current value is more than third current threshold and less than or equal to the 4th electricity in control module 102
When flowing threshold value, alarm module 103 generates the 4th warning information, and it is greenish-yellow that the 4th warning information includes the flicker display of display unit 109
Red trichromatism and buzzer give a warning, excessive to alert the electric current of power cord 100.For example, the rated current of power cord 100
For 16A, being often referred to the current value of power cord 100 no more than 16A, then the first current threshold is 6A, and the second current threshold is 9A,
Third current threshold is 12A, and the 4th current threshold is 15A.In other embodiments of the invention, user can be as needed,
Preset multiple current thresholds.
In this example it is shown that screen 111 and buzzer 110 can be arranged on plug 301.Certainly, buzzer 110
On being arranged between copper core 201 and transparent insulating layer 202.Current detection module 101, control module 102 and power supply mould
Block 104 can be arranged on printed circuit board 112, and printed circuit board 112 can be arranged on the lower section of display screen 111, printed certainly
Printed circuit board 112 can also be arranged between copper core 201 and transparent insulating layer 202.
The present invention implements the power cord 100 provided, the current value of power cord 100 can be monitored in real time, to prevent power cord
100 electric currents are excessive, and can protect the PDU302 being connect with power cord 100.
Refer to Fig. 5, be it is provided in an embodiment of the present invention monitoring 100 electric current of power cord method flow diagram, the method
Applied to the power cord 100 as shown in Fig. 1 to Fig. 4 of the present invention.As shown in figure 5, the method includes：
901：Detect the current value of power cord 100；
902：Current value and preset current threshold are compared, and warning information is generated according to comparison result, with reality
When monitor power cord 100 current value.
In S902, preset current threshold include the first current threshold, the second current threshold, third current threshold and
4th current threshold, the first current threshold<Second current threshold<Third current threshold<4th current threshold, wherein：In electric current
When value is less than or equal to the first current threshold, power cord 100 generates the first warning information；It is more than the first current threshold in current value
And during less than or equal to the second current threshold, power cord 100 generates the second warning information；It is more than the second current threshold in current value
And during less than or equal to third current threshold, power cord 100 generates third warning information；It is more than third current threshold in current value
And during less than or equal to four current thresholds, power cord 100 generates the 4th warning information.Wherein, power cord 100 is accused according to first
The first color of alert presentation of information；Second color is shown according to the second warning information；Third color is shown according to third warning information；
4th color is shown according to the 4th warning information.
In conclusion the present invention by current detection module detect power cord current value, control module by current value with
Preset current threshold is compared, and alarm module generates warning information according to comparison result, can monitor power cord in real time
Current value, it is excessive to prevent power lead current.
The foregoing is merely the embodiment of the present invention, are not intended to limit the scope of the invention, every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made directly or indirectly is used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (7)
1. a kind of power cord, including copper core, the copper core includes firewire and zero curve, which is characterized in that the power cord also wraps
It includes：
Current detection module is connect with the firewire or the zero curve, for detecting the current value of the firewire or the zero curve；
Control module, for obtaining the current value from the current detection module, and by the current value and preset electric current
Threshold value is compared；
Alarm module, for generating warning information according to the comparison result of the control module, to monitor the power cord in real time
Current value；
Power supply module, for connecting the firewire and zero curve, and respectively with the current detection module, the control module and
The alarm module connection, to power to the current detection module, the control module and the alarm module；
Wherein, the power supply module obtains power supply from the power cord, and the power supply module includes transformer and rectification circuit, institute
The input terminal for stating transformer is connect with the firewire and zero curve, for the power supply to be converted to low-voltage, the rectification circuit
It is connect with the output terminal of the transformer, obtains the low-voltage, for being operating voltage by the low voltage transition；
The power supply module further includes switch unit, and the switch unit is connect with the rectification circuit, in the power supply module
When need not provide operating voltage, the switch unit controls the power supply module to be stopped, and is carried in power supply module needs
During for operating voltage, the switch unit controls the power supply module work.
2. power cord according to claim 1, which is characterized in that the preset current threshold includes the first current threshold
Value, the second current threshold, third current threshold and the 4th current threshold, and first current threshold<Second electric current
Threshold value<The third current threshold<4th current threshold, wherein：
When the current value is less than or equal to first current threshold, the alarm module generates the first warning information；
When the current value is more than first current threshold and is less than or equal to second current threshold, the alarm mould
Block generates the second warning information；
When the current value is more than second current threshold and is less than or equal to the third current threshold, the alarm mould
Block generates third warning information；
When the current value is more than the third current threshold and is less than or equal to four current threshold, the alarm mould
Block generates the 4th warning information.
3. power cord according to claim 2, which is characterized in that the alarm module includes display unit, for basis
First warning information shows the first color, and the second color is shown according to second warning information, is accused according to the third
Alert presentation of information third color shows first color, second color and institute according to the 4th warning information flicker
State third color.
4. power cord according to claim 3, which is characterized in that first color is green, and second color is
Yellow, the third color are red.
5. power cord according to claim 3, which is characterized in that the power cord further includes to wrap up the copper core
Transparent insulating layer, the display unit are arranged between the copper core and the transparent insulating layer.
6. power cord according to claim 2, which is characterized in that the alarm module further includes buzzer, the buzzing
Device, for being given a warning according to the 4th warning information.
7. power cord according to claim 1, which is characterized in that the power cord further includes display screen, with the electric current
Detection module connects, for showing the current value.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310557253.4A CN104635024B (en) | 2013-11-08 | 2013-11-08 | A kind of method of power cord and its monitor current |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310557253.4A CN104635024B (en) | 2013-11-08 | 2013-11-08 | A kind of method of power cord and its monitor current |
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| CN104635024A CN104635024A (en) | 2015-05-20 |
| CN104635024B true CN104635024B (en) | 2018-06-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105633754A (en) * | 2015-12-26 | 2016-06-01 | 北海市永达鑫电子有限公司 | Data line |
| CN105591247A (en) * | 2015-12-26 | 2016-05-18 | 北海市永达鑫电子有限公司 | Data line |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2386550Y (en) * | 1999-06-01 | 2000-07-05 | 吴宪宗 | Power-supply socket |
| CN201364359Y (en) * | 2009-01-20 | 2009-12-16 | 得益工业仪器有限公司 | Current detecting early warning alarm |
| CN201477140U (en) * | 2009-05-25 | 2010-05-19 | 郭圭伟 | Socket current display and warning device |
| CN103176880A (en) * | 2011-12-22 | 2013-06-26 | 鸿富锦精密工业（深圳）有限公司 | Monitoring system and method for server simulated load |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202080826U (en) * | 2011-05-06 | 2011-12-21 | 浙江宇脉科技有限公司 | Wireless remote-control system for communication construction crown block |
| CN103345211B (en) * | 2013-06-07 | 2016-11-16 | 广东菲柯特电子科技有限公司 | Intelligent home control system and control method |
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2013
- 2013-11-08 CN CN201310557253.4A patent/CN104635024B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2386550Y (en) * | 1999-06-01 | 2000-07-05 | 吴宪宗 | Power-supply socket |
| CN201364359Y (en) * | 2009-01-20 | 2009-12-16 | 得益工业仪器有限公司 | Current detecting early warning alarm |
| CN201477140U (en) * | 2009-05-25 | 2010-05-19 | 郭圭伟 | Socket current display and warning device |
| CN103176880A (en) * | 2011-12-22 | 2013-06-26 | 鸿富锦精密工业（深圳）有限公司 | Monitoring system and method for server simulated load |
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Effective date of registration: 20211223 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: Super fusion Digital Technology Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |
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