Intelligent display control device for switch cabinet
Technical field
This utility model belongs to switch cubicle monitoring, operation device field, particularly relates to a kind of Intelligent display control device for switch cabinet.
Background technology
Requirement due to the seal of High-low voltage switch cabinet and insulation safety, all require to close at switch cubicle duty lower cabinet door, electrical connection logical relation substantially is understood in cabinet, it is impossible to observe the duty of the isolation switch in cabinet, handcart, vacuum circuit breaker, earthed switch intuitively only by simulation drawing in cabinet face.Those skilled in the art is for solving above-mentioned technical problem, adopt and cabinet door is arranged observation window, alleviating to a certain extent cannot the situation of on off state in direct vision cabinet, but observation window limits because of shape, transparency, indoor light situation etc. reason, causes knowing the folding condition determining switch accurately.Therefore a kind of novel device it is badly in need of for the switch monitoring of folding condition, the display device in switch cubicle.
Summary of the invention
In view of this, it is an object of the invention to propose a kind of Intelligent display control device for switch cabinet, solve existing switch cubicle and intuitive and accurate cannot observe the not enough problem of deciliter state of isolation switch, handcart, vacuum circuit breaker, earthed switch in cabinet.In order to some aspects of the embodiment disclosed are had a basic understanding, shown below is simple summary.This summarized section is not extensive overview, neither determine key/critical component or describe the protection domain of these embodiments.Its sole purpose is to present some concepts by simple form, in this, as the preamble of following detailed description.
This utility model adopts the following technical scheme that
A kind of Intelligent display control device for switch cabinet is provided, including, box body, the panel of described box body arranges a simulation drawing, and the position isolating switch, handcart, vacuum circuit breaker and earthed switch on a simulation drawing is correspondingly arranged isolation switches deciliter LED light, wheelbarrow switch deciliter LED light, vacuum circuit breaker switch deciliter LED light and earthed switch switch deciliter LED light respectively;Also include, on off state acquisition module and PIC18F4520 single-chip microcomputer, described on off state acquisition module gathers the switch deciliter state of isolation switch, handcart, vacuum circuit breaker and earthed switch respectively, sending deciliter state to PIC18F4520 single-chip microcomputer, the color of described PIC18F4520 Single-chip Controlling isolation switches deciliter LED light, wheelbarrow switch deciliter LED light, vacuum circuit breaker switch deciliter LED light and earthed switch switch deciliter LED light shows.
Wherein, described Intelligent display control device for switch cabinet also includes, lock-in control module, and described panel arranges charged display lamp, and lock-in control module is connected with described PIC18F4520 single-chip microcomputer input, and the charged display lamp of described PIC18F4520 Single-chip Controlling opens and closes.
Wherein, described Intelligent display control device for switch cabinet also includes, and voice anti-fault operation module, described voice anti-fault operation module is connected with described PIC18F4520 single-chip microcomputer input.
Wherein, described Intelligent display control device for switch cabinet also includes, communication module, and status information of equipment is sent to backstage host computer by described communication module.
Wherein, described Intelligent display control device for switch cabinet also includes, human body induction module and power distribution cabinet lighting module, and people's information is stayed in described human body induction module collection, people's information will be stayed to send to described PIC18F4520 single-chip microcomputer, and described PIC18F4520 Single-chip Controlling power distribution cabinet lighting module works.
Intelligent display control device for switch cabinet disclosed in the utility model can monitor and observe the opening and closing state of the switch in switch cubicle intuitively, facilitates monitoring personnel to identify on off state in cabinet fast and accurately.Improve the device security energy of switch cubicle.And realize the multi-functional control such as electrification in high voltage instruction and lock-in control, intelligent sound anti-misoperation prompting, cabinet intraoral illumination function.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model.
Detailed description of the invention
The following description and drawings illustrate specific embodiments of the present invention fully, to enable those skilled in the art to put into practice them.Other embodiments can include structure, logic, electric, process and other change.Embodiment only represents possible change.Unless explicitly requested, otherwise independent components and functionality is optional, and the order operated can change.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.
As shown in Figure 1, Intelligent display control device for switch cabinet, including, box body, the panel of described box body arranges a simulation drawing, and the position isolating switch, handcart, vacuum circuit breaker and earthed switch on a simulation drawing is correspondingly arranged isolation switches deciliter LED light, wheelbarrow switch deciliter LED light, vacuum circuit breaker switch deciliter LED light and earthed switch switch deciliter LED light respectively;Also include, on off state acquisition module 2 and PIC18F4520 single-chip microcomputer 1, described on off state acquisition module 2 gathers the switch deciliter state of isolation switch, handcart, vacuum circuit breaker and earthed switch respectively, sending deciliter state to PIC18F4520 single-chip microcomputer 1, described PIC18F4520 single-chip microcomputer 1 controls the color of isolation switches deciliter LED light, wheelbarrow switch deciliter LED light, vacuum circuit breaker switch deciliter LED light and earthed switch switch deciliter LED light and shows.Also including, lock-in control module, described panel arranges charged display lamp, lock-in control module is connected with described PIC18F4520 single-chip microcomputer 1 input, and described PIC18F4520 single-chip microcomputer 1 controls charged display lamp and opens and closes.Also including, voice anti-fault operation module, described voice anti-fault operation module is connected with described PIC18F4520 single-chip microcomputer 1 input.Also including, communication module, status information of equipment is sent to backstage host computer by described communication module.Also including, human body induction module and power distribution cabinet lighting module, people's information is stayed in described human body induction module collection, and people's information will be stayed to send to described PIC18F4520 single-chip microcomputer 1, and described PIC18F4520 single-chip microcomputer 1 controls the work of power distribution cabinet lighting module.If patrol officer is near switch cubicle and stops more than 2S, open cabinet intraoral illumination in time, it is simple to facilities for observation ruuning situation, personnel leave latter 10 seconds and are automatically switched off.
Wherein, for high-pressure situations, also switch cubicle inner high voltage copper bar can be carried out thermometric, probe is tied up on high pressure copper bar, the main temperature surveying copper bar, the transmission of temperature data utilizes 2.4G wireless signal to transmit, and adopts transmission of wireless signals, realize the real time on-line monitoring of temperature, not by the impact of straight line sighting distance.
nullWherein,The specific works flow process of on off state acquisition module 2 is: the isolation switch that on off state acquisition module 2 gathers in High-low voltage switch cabinet、Handcart、Vacuum circuit breaker、The switch powder box state of the incidental auxiliary dry contact of earthed switch,Judge its deciliter state,Then the isolation switches deciliter LED light of box body panel last time simulation drawing relevant position is lighted、Wheelbarrow switch deciliter LED light、Vacuum circuit breaker switch deciliter LED light and earthed switch switch deciliter LED light,Switching signal gatherer process adopts PC817 photoelectric coupler isolation external interference signals only coupled switch signal,Single-chip microcomputer utilizes 74HC165 chip to realize turning serial parallel,Only 3 I/O ports of use just can 8 switching signals of a parallel acquisition,Control 74HC595 chip by scm software and realize transformation from serial to parallel,Then through ULA2003 chip drives panel LED light,When switching signal is timesharing,The green gate-dividing state of LED light display,When external switch is for closing,The red "on" position of LED light display.
nullWherein,The specific works flow process of lock-in control module is: electrification in high voltage acquisition module is by gathering three-phase external belt electric transducer signal,This signal is through 100K resistance current limliting、MB6S bridge rectifier rectification、Three corresponding charged display lamps are lighted after 47nF capacitor filtering,The charged pilot lamp loop of three-phase all connects a PC817 photoelectrical coupler to isolate external interference signals only strap electrical sensor signal simultaneously,The outfan of three photoelectrical couplers is connected in parallel,It is connected to signal amplifying triode 8050 to drive live locking relay J T32F,Arbitrary road electrified sensor has electricity,Corresponding charged LED light is lighted,And pass through optocoupler、Signal amplifying triode makes live locking relay discharge,Passive dry contact is separately,When only three tunnel electrified sensor all do not have the signal of telecommunication,The just adhesive of live locking relay,Passive dry contact closes,External electrical magnetic padlock is made to obtain electric work.
Wherein, the specific works flow process of voice anti-fault operation module is: voice anti-fault operation module is by gathering external switch signal, judge deciliter logic of each switch through software in PIC18F4520 single-chip microcomputer, by I2C bus driver external voice chip SK020G, speech chip is directly connected to the loudspeaker of 8 Europe 0.5W, when not closing earthed switch in handcart testing position mistiming, and loudspeaker prompting " earthed switch please be divide ";When handcart is advanced by chopper at closing position by mistake, loudspeaker prompting " chopper please be divide ";When with there being above two maloperations, loudspeaker are pointed out: " please divide chopper, please divide earthed switch ".
Communication module adopts RS485 communication module, by controlling RS485 two-wire system standard communication interface chip MAX485 and providing the data meeting industrywide standard form with reference to MODBUS-RTU stipulations, realizes the data link between device and backstage host computer.Power station unmanned can be realized with background system communication, understand equipment working state in real time at backstage place.
The display screen of this Intelligent display control device for switch cabinet adopts 12864 liquid crystal or two row 4 Digital sum pipes to show, when selecting liquid crystal display, the I/O port of liquid crystal display screen is directly connected with the I/O port of single-chip microcomputer, then the chip data according to liquid crystal display screen writes driver, if when selecting numeral method, or adopt the identical I/O port of single-chip microcomputer but the different programs content that drives HD7279A chip to need by numeral method.
The On-off signal of Intelligent display control device for switch cabinet is passive dry contact mode.
Above-described embodiment is this utility model preferably embodiment; but embodiment of the present utility model is also not restricted to the described embodiments; other are any without departing from the change made under spirit of the present utility model and principle; modify; substitute, combination, simplify; all should be the substitute mode of equivalence, all should be included in protection domain of the present utility model.