CN104515922A - Power supply supervision apparatus for construction machinery - Google Patents
Power supply supervision apparatus for construction machinery Download PDFInfo
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- CN104515922A CN104515922A CN201310442127.4A CN201310442127A CN104515922A CN 104515922 A CN104515922 A CN 104515922A CN 201310442127 A CN201310442127 A CN 201310442127A CN 104515922 A CN104515922 A CN 104515922A
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Abstract
The invention relates to a power supply supervision apparatus for construction machinery. The apparatus comprises a total distribution box detection device, a sub distribution box detection device and a cabinet switch detection device, also has a wireless data telemetering function at the same time, uploads an acquisition result to an external computer through a wireless mode and monitors safety hidden risks of a third-level distribution box in real time through special-purpose software. The power supply supervision apparatus for the construction machinery obviously reduces equipment and personal accidents and substantially improves the safe operation efficiency.
Description
Technical field
The invention belongs to construction machine technical field, be specifically related to a kind of power supply monitoring apparatus for construction machinery.
Background technology
At present, along with the fast development of China's engineering construction, the big machineries such as tower crane are used widely in various engineering construction.The temporary electricity of current construction site also exists many unsafe factors, on-the-spot switch box do not have ground connection or ground connection unreliable, even by protective ground and the phenomenon that uses of zero line protection confusion, residual current circuit breaker inefficacy in some three step switch casees.A kind of device detecting the potential safety hazard such as protective ground, zero-sequence current, leakage current of consumer unit and graduation three electronic box of exploitation is badly in need of for these safe drawbacks.
Summary of the invention
Instant invention overcomes the deficiencies in the prior art, propose a kind of power supply monitoring apparatus for construction machinery, described system is provided with wireless data transporting function simultaneously, wirelessly the result of collection is uploaded in outer computer, and pass through the potential safety hazard of special software real time monitoring graduation three electronic box.
Technical scheme of the present invention is: for the power supply monitoring apparatus of construction machinery, comprise consumer unit pick-up unit, distribution electric box pick-up unit and switch box pick-up unit, described consumer unit pick-up unit is provided with total output line outgoing interface and resultant signal line outgoing interface, distribution electric box pick-up unit is provided with transfer line of force outgoing interface, transfer line of force incoming interface, sub-signal line outgoing interface and sub-signal line incoming interface, switch box pick-up unit is provided with switching power line outgoing interface, switching power line incoming interface, switch signal line outgoing interface and switch signal line incoming interface, the transfer line of force incoming interface of described distribution electric box pick-up unit is connected with resultant signal line outgoing interface with the total output line outgoing interface of consumer unit pick-up unit respectively with sub-signal line incoming interface, the switching power line incoming interface of described switch box pick-up unit is connected with sub-signal line outgoing interface with the transfer line of force outgoing interface of distribution electric box pick-up unit respectively with switch signal line incoming interface, described consumer unit pick-up unit is provided with total detection control module and master controller, described distribution electric box pick-up unit is provided with sub-controller, described switch box pick-up unit is provided with on-off controller.
The switching power line outgoing interface of described switch box pick-up unit is connected with consumer respectively with switch signal line outgoing interface.
Described consumer unit pick-up unit, distribution electric box pick-up unit and switch box pick-up unit are respectively equipped with wireless transport module.
Described total detection control module comprises leakage current detecting module, zero line protection and protective ground detection module, insulating resistance measuring module and phase voltage balance detection module.
the present invention has following beneficial effect:
The present invention is the device of the potential safety hazards such as three-level protective ground connection, zero-sequence current, leakage current; be provided with wireless data transporting function; wirelessly the result of collection is uploaded in the computing machine of external network connection; and pass through the potential safety hazard of special software real time monitoring graduation three electronic box; significantly reduce equipment and personal injury, significantly improve safe operation efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is detection control principle schematic of the present invention;
Fig. 3 is detection control device installation site of the present invention schematic diagram.
Embodiment
See shown in Fig. 1 to Fig. 3, the present invention includes consumer unit pick-up unit, multiple distribution electric box pick-up unit and multiple switch box pick-up unit, described consumer unit pick-up unit is provided with total output line outgoing interface and resultant signal line outgoing interface, distribution electric box pick-up unit is provided with transfer line of force outgoing interface, transfer line of force incoming interface, sub-signal line outgoing interface and sub-signal line incoming interface, switch box pick-up unit is provided with switching power line outgoing interface, switching power line incoming interface, switch signal line outgoing interface and switch signal line incoming interface, the transfer line of force incoming interface of described distribution electric box pick-up unit is connected with resultant signal line outgoing interface with the total output line outgoing interface of consumer unit pick-up unit respectively with sub-signal line incoming interface, the switching power line incoming interface of described switch box pick-up unit is connected with sub-signal line outgoing interface with the transfer line of force outgoing interface of distribution electric box pick-up unit respectively with switch signal line incoming interface, described consumer unit pick-up unit is provided with total detection control module and master controller, described distribution electric box pick-up unit is provided with sub-controller, described switch box pick-up unit is provided with on-off controller.The switching power line outgoing interface of described switch box pick-up unit is connected with consumer respectively with switch signal line outgoing interface.Described total detection control module comprises leakage current detecting module, zero line protection and protective ground detection module, insulating resistance measuring module and phase voltage balance detection module.The control of the whole fielded system of total detection control module in charge and scheduling.Total control module can be connected with external network to wirelessly, also can be connected with internal unit to wirelessly.
Specific embodiment is as follows:
Master controller of the present invention, sub-controller and on-off controller are mainly basic control unit based on the high integration 8 8-digit microcontroller AT89C52 of MCS-51 structure.Circuit as shown in Figure 2, leakage current detecting module, zero line protection and protective ground detection module that described total detection control module comprises, insulating resistance measuring module and phase voltage balance detection module carry out the detection of following several respects:
1) leakage current detecting module: the TA5 shown in Fig. 2 is magnet coil, can drive total leakage switch to disconnect during electric leakage, the input port of its input termination AT89C52, so when K1 closes, the electric current flowing through L is very little, is not enough to cause K switch 1 to disconnect.When there being electric leakage in circuit, the vector through the three-phase power line of AT5 magnet ring and the electric current of zero line is non-vanishing, and a, b two ends of the magnetic test coil on magnet ring just have induced voltage to export, and this voltage exports control signal through AT89C52 computing.
2) zero line protection and protective ground detection module: AT1, AT2 shown in Fig. 2 are that current transformer is altered and is connected on PE and N, when system is powered according to TN-S, on-the-spot switch box all should ground connection, when not occurring to leak electricity, AT1 is zero, but AT2 three characteristics of the middle term current imbalance can produce certain electric current at coil a, b two ends; Two signals are analyzed through AT89C52, can confirm panel box protective ground.When on-the-spot switch box have ground connection have connecting to neutral time; out-of-balance current is when N line enters ground to PE line; the electric current that AT1 and AT2 coil a, b two ends produce is equal; so just show this switch box protective wire connecting to neutral through display interface, send while chimes of doom is informed and upload on host computer.
3) insulating resistance measuring module, in Fig. 2, AT1 undertakes the detection of grounding resistance simultaneously, an induction current I1 is produced by electric current magnet ring and current coil, AT89C52 measures I1, by entering single-chip microcomputer analysis after input computing, obtaining 5 grades of leakage current values, grounding resistance can be read from liquid crystal display, when more than 4 ohm, send while chimes of doom is informed and upload on host computer.
4) total leakage switch powers on to test and detects, send a little at every turn, AT89C5 exports the simulation leakage current of a 0-50mA to total residual current circuit breaker, observe time constant and the residual operating current value of residual current circuit breaker tripping operation, when uploading on host computer more than sending during 30mA while chimes of doom is informed.
5) phase voltage balance detection module, when serious imbalance appears in phase voltage, the testing circuit that AT3, AT4 are formed, is input to AT89C5 by signal, by the numerical value of display screen display three-phase current, and uploads on host computer.
6) all above-mentioned signals detected, through being connected wireless data transceiver module uploading data with AT89C5 communication interface.
7) the visual supervision in strange land is realized by host computer special " on-the-spot panel box safety monitoring system management platform ".
Claims (4)
1. for the power supply monitoring apparatus of construction machinery, comprise consumer unit pick-up unit, distribution electric box pick-up unit and switch box pick-up unit, it is characterized in that: described consumer unit pick-up unit is provided with total output line outgoing interface and resultant signal line outgoing interface, distribution electric box pick-up unit is provided with transfer line of force outgoing interface, transfer line of force incoming interface, sub-signal line outgoing interface and sub-signal line incoming interface, switch box pick-up unit is provided with switching power line outgoing interface, switching power line incoming interface, switch signal line outgoing interface and switch signal line incoming interface, the transfer line of force incoming interface of described distribution electric box pick-up unit is connected with resultant signal line outgoing interface with the total output line outgoing interface of consumer unit pick-up unit respectively with sub-signal line incoming interface, the switching power line incoming interface of described switch box pick-up unit is connected with sub-signal line outgoing interface with the transfer line of force outgoing interface of distribution electric box pick-up unit respectively with switch signal line incoming interface, described consumer unit pick-up unit is provided with total detection control module and master controller, described distribution electric box pick-up unit is provided with sub-controller, described switch box pick-up unit is provided with on-off controller.
2. the power supply monitoring apparatus for construction machinery according to claim 1, is characterized in that: the switching power line outgoing interface of described switch box pick-up unit is connected with consumer respectively with switch signal line outgoing interface.
3. the power supply monitoring apparatus for construction machinery according to claim 1 and 2, is characterized in that: described consumer unit pick-up unit, distribution electric box pick-up unit and switch box pick-up unit are respectively equipped with wireless transport module.
4. the power supply monitoring apparatus for construction machinery according to claim 3, is characterized in that: described total detection control module comprises leakage current detecting module, zero line protection and protective ground detection module, insulating resistance measuring module and phase voltage balance detection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310442127.4A CN104515922A (en) | 2013-09-26 | 2013-09-26 | Power supply supervision apparatus for construction machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310442127.4A CN104515922A (en) | 2013-09-26 | 2013-09-26 | Power supply supervision apparatus for construction machinery |
Publications (1)
| Publication Number | Publication Date |
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| CN104515922A true CN104515922A (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310442127.4A Pending CN104515922A (en) | 2013-09-26 | 2013-09-26 | Power supply supervision apparatus for construction machinery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107257162A (en) * | 2017-06-26 | 2017-10-17 | 河北省第二建筑工程有限公司 | Job site intelligent distribution system |
| CN107565688A (en) * | 2017-08-21 | 2018-01-09 | 四川电之盾安全技术有限公司 | A kind of Electrical Safety prevention and control system based on Internet of Things |
| CN107632226A (en) * | 2017-08-21 | 2018-01-26 | 四川电之盾安全技术有限公司 | A kind of electrical safety on-line monitoring equipment |
-
2013
- 2013-09-26 CN CN201310442127.4A patent/CN104515922A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107257162A (en) * | 2017-06-26 | 2017-10-17 | 河北省第二建筑工程有限公司 | Job site intelligent distribution system |
| CN107257162B (en) * | 2017-06-26 | 2020-04-07 | 河北省第二建筑工程有限公司 | Intelligent power distribution system for construction site |
| CN107565688A (en) * | 2017-08-21 | 2018-01-09 | 四川电之盾安全技术有限公司 | A kind of Electrical Safety prevention and control system based on Internet of Things |
| CN107632226A (en) * | 2017-08-21 | 2018-01-26 | 四川电之盾安全技术有限公司 | A kind of electrical safety on-line monitoring equipment |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150415 |
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| WD01 | Invention patent application deemed withdrawn after publication |