CN102651539A - Safe power supply monitoring system of building construction machinery - Google Patents
Safe power supply monitoring system of building construction machinery Download PDFInfo
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- CN102651539A CN102651539A CN2012101107539A CN201210110753A CN102651539A CN 102651539 A CN102651539 A CN 102651539A CN 2012101107539 A CN2012101107539 A CN 2012101107539A CN 201210110753 A CN201210110753 A CN 201210110753A CN 102651539 A CN102651539 A CN 102651539A
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Abstract
The invention relates to a safe power supply monitoring system of building construction machinery. The safe power supply monitoring system comprises a general distribution box detection device, branch distribution box detection devices and switch box detection devices, simultaneously has a wireless data remote transmission function, transmits acquired results to an outer computer in a wireless mode and monitors the potential safety hazards of three-level distribution boxes in real time by virtue of special software. By utilizing the safe power supply monitoring system, equipment and fatal accidents are reduced, and the safe operation efficiency is obviously improved.
Description
Technical field
The invention belongs to the construction machine technical field, be specifically related to a kind of construction machine safe power supply monitor system.
Background technology
At present, along with the fast development of China's engineering construction, big machineries such as derrick crane are used widely in various engineering constructions.At present the temporary electricity of construction site exists many unsafe factors, and on-the-spot switch-box does not have ground connection or ground connection unreliable, even with protective earthing and the chaotic phenomenon of using of protection connecting to neutral, RCCB lost efficacy in the three step switch case that has.Be badly in need of the device of potential safety hazards such as a kind of protective earthing that detects consumer unit and three grades of distribution boxs of exploitation, zero-sequence current, leakage current to these safe drawbacks.
Summary of the invention
The present invention has overcome the deficiency of prior art; A kind of construction machine safe power supply monitor system has been proposed; Said system is provided with wireless data teletransmission function simultaneously; The result that will gather through wireless mode uploads in the outer computer, and passes through the potential safety hazard of three grades of distribution boxs of special-purpose software real time monitoring.
Technical scheme of the present invention is: construction machine safe power supply monitor system; Comprise the consumer unit checkout gear, divide distribution box checkout gear and switch-box checkout gear; Said consumer unit checkout gear is provided with total output line outgoing interface and resultant signal line outgoing interface; Divide the distribution box checkout gear to be provided with branch power line outgoing interface, divide power line incoming interface, sub-signal line outgoing interface and sub-signal line incoming interface; The switch-box checkout gear is provided with switch power line outgoing interface, switch power line incoming interface, switch signal line outgoing interface and switch signal line incoming interface; The branch power line incoming interface of said minute distribution box checkout gear is connected with resultant signal line outgoing interface with the total output line outgoing interface of consumer unit checkout gear respectively with sub-signal line incoming interface; The switch power line incoming interface of said switch-box checkout gear is connected with sub-signal line outgoing interface with the branch power line outgoing interface of minute distribution box checkout gear respectively with the switch signal line incoming interface; Said consumer unit checkout gear is provided with total detection control module and master controller, and the distribution box checkout gear was provided with sub-controller in said minute, and said switch-box checkout gear is provided with on-off controller.
The switch power line outgoing interface of said switch-box checkout gear is connected with power consumption equipment respectively with the switch signal line outgoing interface.
Said consumer unit checkout gear, branch distribution box checkout gear and switch-box checkout gear are respectively equipped with wireless transport module.
Said total detection control module comprises leakage current detection module, protection connecting to neutral and protective earthing detection module, earth resistance detection module and phase voltage balance detection module.
The present invention has following beneficial effect:
The present invention is the device of potential safety hazards such as three-level protective ground connection, zero-sequence current, leakage current; Be provided with wireless data teletransmission function; The result that will gather through wireless mode uploads in the computer of external network connection; And the potential safety hazard through three grades of distribution boxs of special-purpose software real time monitoring, obviously reduced equipment and personal injury, significantly improved safe operation efficient.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that the present invention detects the control principle sketch map;
Fig. 3 is that the present invention detects control device installation site sketch map;
Embodiment
Extremely shown in Figure 3 referring to Fig. 1; The present invention includes consumer unit checkout gear, a plurality of minutes distribution box checkout gears and a plurality of switch-box checkout gear; Said consumer unit checkout gear is provided with total output line outgoing interface and resultant signal line outgoing interface; Divide the distribution box checkout gear to be provided with branch power line outgoing interface, divide power line incoming interface, sub-signal line outgoing interface and sub-signal line incoming interface; The switch-box checkout gear is provided with switch power line outgoing interface, switch power line incoming interface, switch signal line outgoing interface and switch signal line incoming interface; The branch power line incoming interface of said minute distribution box checkout gear is connected with resultant signal line outgoing interface with the total output line outgoing interface of consumer unit checkout gear respectively with sub-signal line incoming interface; The switch power line incoming interface of said switch-box checkout gear is connected with sub-signal line outgoing interface with the branch power line outgoing interface of minute distribution box checkout gear respectively with the switch signal line incoming interface; Said consumer unit checkout gear is provided with total detection control module and master controller, and the distribution box checkout gear was provided with sub-controller in said minute, and said switch-box checkout gear is provided with on-off controller.The switch power line outgoing interface of said switch-box checkout gear is connected with power consumption equipment respectively with the switch signal line outgoing interface.Said total detection control module comprises leakage current detection module, protection connecting to neutral and protective earthing detection module, earth resistance detection module and phase voltage balance detection module.Total detection control module is responsible for the control and the scheduling of entire field system.Total control module can be connected with external network through wireless mode, also can be connected with internal unit through wireless mode.
Specific embodiment is following:
Master controller of the present invention, sub-controller and on-off controller are basic control unit based on the high integration 8 8-digit microcontroller AT89C52 of MCS-51 structure mainly.See circuit shown in Figure 2, the leakage current detection module that said total detection control module is comprised, protection connecting to neutral and protective earthing detection module, earth resistance detection module and phase voltage balance detection module are carried out the detection of following several respects:
1) leakage current detection module: TA5 shown in Figure 2 is electromagnet coil, can drive total leakage switch during electric leakage and break off, and the input port of its input termination AT89C52 is so when K1 closed, the electric current of the L that flows through was very little, is not enough to cause K switch 1 to break off.When in the circuit electric leakage being arranged, pass the vector of electric current of three-phase power line and zero line of AT5 magnet ring and non-vanishing, just there is induced voltage output at a of the magnetic test coil on the magnet ring, b two ends, and this voltage is through AT89C52 computing output control signal.
2) protection connecting to neutral and protective earthing detection module: AT1 shown in Figure 2, AT2 are that current transformer is scurried and is connected on PE and the N; When system supplies power according to TN-S; On-the-spot switch-box all should ground connection; AT1 is zero when electric leakage not taking place, 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 the distribution box protective earthing.When on-the-spot switch-box have ground connection have connecting to neutral the time; Unsymmetrical current is through the N line enters ground to the PE line when; The electric current that AT1 and AT2 coil a, b two ends produce equates; So just the process display interface shows this switch-box protective wire connecting to neutral, sends when chimes of doom is informed to upload on the host computer.
3) earth resistance detection module, AT1 undertakes the detection of grounding resistance simultaneously among Fig. 2, produces an induced current I1 through electric current magnet ring and current coil; AT89C52 measures I1; Analyze through getting into single-chip microcomputer after the input computing, obtain 5 grades of leakage current values, can read grounding resistance from liquid crystal display screen; When surpassing 4 ohm, send when chimes of doom is informed and upload on the host computer.
4) total leakage switch powers on to test and detects; After sending a little at every turn; The simulation leakage current of a 0-50mA of AT89C5 output is given total RCCB; Observe time constant and the residual operating current value of RCCB tripping operation, when above 30mA, send and upload on the host computer when chimes of doom is informed.
5) phase voltage balance detection module, when serious imbalance appearred in phase voltage, the testing circuit that AT3, AT4 constitute was input to AT89C5 with signal, shows the numerical value of three-phase current through display screen, and uploads on the host computer.
6) all above-mentioned detected signals are uploaded data through being connected wireless data transceiver module with the AT89C5 communication interface.
7) realize the visual supervision in strange land through host computer special-purpose " on-the-spot distribution box safety monitoring system management platform ".
Claims (4)
1. construction machine safe power supply monitor system; Comprise the consumer unit checkout gear, divide distribution box checkout gear and switch-box checkout gear; It is characterized in that: said consumer unit checkout gear is provided with total output line outgoing interface and resultant signal line outgoing interface; Divide the distribution box checkout gear to be provided with branch power line outgoing interface, divide power line incoming interface, sub-signal line outgoing interface and sub-signal line incoming interface; The switch-box checkout gear is provided with switch power line outgoing interface, switch power line incoming interface, switch signal line outgoing interface and switch signal line incoming interface; The branch power line incoming interface of said minute distribution box checkout gear is connected with resultant signal line outgoing interface with the total output line outgoing interface of consumer unit checkout gear respectively with sub-signal line incoming interface; The switch power line incoming interface of said switch-box checkout gear is connected with sub-signal line outgoing interface with the branch power line outgoing interface of minute distribution box checkout gear respectively with the switch signal line incoming interface; Said consumer unit checkout gear is provided with total detection control module and master controller, and the distribution box checkout gear was provided with sub-controller in said minute, and said switch-box checkout gear is provided with on-off controller.
2. construction machine safe power supply monitor system according to claim 1 is characterized in that: the switch power line outgoing interface of said switch-box checkout gear is connected with power consumption equipment respectively with the switch signal line outgoing interface.
3. construction machine safe power supply monitor system according to claim 1 and 2 is characterized in that: said consumer unit checkout gear, branch distribution box checkout gear and switch-box checkout gear are respectively equipped with wireless transport module.
4. construction machine safe power supply monitor system according to claim 3 is characterized in that: said total detection control module comprises leakage current detection module, protection connecting to neutral and protective earthing detection module, earth resistance detection module and phase voltage balance detection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101107539A CN102651539A (en) | 2012-04-16 | 2012-04-16 | Safe power supply monitoring system of building construction machinery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101107539A CN102651539A (en) | 2012-04-16 | 2012-04-16 | Safe power supply monitoring system of building construction machinery |
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| CN102651539A true CN102651539A (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101107539A Pending CN102651539A (en) | 2012-04-16 | 2012-04-16 | Safe power supply monitoring system of building construction machinery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409976A (en) * | 2014-12-01 | 2015-03-11 | 苏州立瓷电子技术有限公司 | LED display screen power supply system |
| CN106130189A (en) * | 2016-08-30 | 2016-11-16 | 中国冶集团有限公司 | Job site temporary power condition monitoring system and method |
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| CN201332264Y (en) * | 2009-01-05 | 2009-10-21 | 河南理工大学 | Chain safeguard intelligent control device for coal mine downhole power supply system |
| CN101860007A (en) * | 2010-04-20 | 2010-10-13 | 山东卓尔电气有限公司 | Remote intelligent residual current monitoring and protection system |
| CN201699325U (en) * | 2010-06-13 | 2011-01-05 | 浙江中控研究院有限公司 | Intelligent low pressure distribution cabinet system |
| CN202084792U (en) * | 2011-06-14 | 2011-12-21 | 天津电建电气设备有限公司 | Novel distribution box for construction site |
| CN202586087U (en) * | 2012-04-16 | 2012-12-05 | 青岛一开电气科技有限公司 | Construction machinery safe power supply supervision system |
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2012
- 2012-04-16 CN CN2012101107539A patent/CN102651539A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201332264Y (en) * | 2009-01-05 | 2009-10-21 | 河南理工大学 | Chain safeguard intelligent control device for coal mine downhole power supply system |
| CN101860007A (en) * | 2010-04-20 | 2010-10-13 | 山东卓尔电气有限公司 | Remote intelligent residual current monitoring and protection system |
| CN201699325U (en) * | 2010-06-13 | 2011-01-05 | 浙江中控研究院有限公司 | Intelligent low pressure distribution cabinet system |
| CN202084792U (en) * | 2011-06-14 | 2011-12-21 | 天津电建电气设备有限公司 | Novel distribution box for construction site |
| CN202586087U (en) * | 2012-04-16 | 2012-12-05 | 青岛一开电气科技有限公司 | Construction machinery safe power supply supervision system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409976A (en) * | 2014-12-01 | 2015-03-11 | 苏州立瓷电子技术有限公司 | LED display screen power supply system |
| CN106130189A (en) * | 2016-08-30 | 2016-11-16 | 中国冶集团有限公司 | Job site temporary power condition monitoring system and method |
| CN106130189B (en) * | 2016-08-30 | 2019-01-11 | 中国一冶集团有限公司 | Construction site temporary power condition monitoring system and method |
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Application publication date: 20120829 |