CN204297845U - A kind of apparatus for controlling elevator - Google Patents
A kind of apparatus for controlling elevator Download PDFInfo
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- CN204297845U CN204297845U CN201420785063.8U CN201420785063U CN204297845U CN 204297845 U CN204297845 U CN 204297845U CN 201420785063 U CN201420785063 U CN 201420785063U CN 204297845 U CN204297845 U CN 204297845U
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- elevator
- control signal
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- micro controller
- signal acquisition
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Abstract
The utility model discloses a kind of apparatus for controlling elevator, comprise micro controller system, dragging motor frequency converter, gated motor, display circuit and floor control signal Acquisition Circuit.The utility model apparatus for controlling elevator for master controller with AT89C51 micro controller system, by the collection to elevator external control request signal, stores the data message classification collected, then judges, get actv. control signal and export.Output mainly contains the external device such as floor display, the service direction display of elevator, the gated motor of elevator controlling elevator dragging motor, elevator.Motor drag have employed frequency control, is changed the output frequency of frequency converter by micro controller system, thus changes motor speed, the utility model system architecture is stablized, control precisely, to be applicable to very much the elevator device replacing conventional PLC to control, to have higher popularizing value.
Description
Technical field
The utility model relates to a kind of control system, specifically a kind of apparatus for controlling elevator.
Background technology
Along with the development of modern high technology, house and building for working all develop to high level gradually.The transport facility that elevator is high-rise hotel, shop, house, multistoried storehouse contour level build indispensable vertical direction.This elevator company of ladder difficult to understand of the U.S. in 1889 release in the world first take electrical motor as the elevator of power, the same year is in especially big tall building, Male, New York successful installation.Along with architectural scale is increasing, floor is also more and more higher, is proposed higher requirement to the static and dynamic c haracteristics such as adjusting speed accuracy, speed adjustable range of elevator.Due to the employing of traditional elevator operation logic control system is relay logical control circuit.Adopt this control path, there is easy break-down, safeguard inconvenience, operation life is shorter, take up room the shortcoming such as large.From technical development, this system will be eliminated gradually.
At present, the elevator operation logic control system be made up of Programmable Logic Controller or microcomputer, just develops with very fast speed.Programmable Logic Controller, it is the product that microcomputer technology combines with relay conventional control technology, it is the new controller grown up on the basis of sequence controller and microcomputerized controller, be a kind of be that core is used as numerically controlled single-purpose computer with microprocessor, it has good obstacle overcome ability, adapt to the harsh environment at a lot of Industry Control scene, so present apparatus for controlling elevator is main still by Controlled by Programmable Controller.But because the specific aim of PLC is comparatively strong, each PLC designs, so price costly according to an equipment.
Utility model content
The purpose of this utility model is to provide a kind of SCM Based reliable and stable, apparatus for controlling elevator that cost is low, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of apparatus for controlling elevator, comprise micro controller system, dragging motor frequency converter, gated motor, display circuit and floor control signal Acquisition Circuit, described micro controller system connects control signal acquisition circuit, floor control signal Acquisition Circuit and deceleration of elevator flat bed control circuit in dragging motor frequency converter, gated motor, display circuit, car respectively, control signal acquisition circuit in car and also connect key circuit in car, described floor control signal Acquisition Circuit also connects floor mouth key circuit.
As further program of the utility model: described micro controller system model is AT89C51.
As further program of the utility model: described floor control signal Acquisition Circuit and the interior signal acquisition circuit that controls of car all adopt multiple three state buffer 74LS244 as extended chip.
As the utility model further scheme: be provided with correlation type photoelectric switch outside described car.
Compared with prior art, the beneficial effects of the utility model are: the utility model apparatus for controlling elevator with AT89C51 micro controller system for master controller, by the collection to elevator external control request signal, the data message classification collected is stored, judge again, get actv. control signal and export.Output mainly contains the external device such as floor display, the service direction display of elevator, the gated motor of elevator controlling elevator dragging motor, elevator.Motor drag have employed frequency control, is changed the output frequency of frequency converter by micro controller system, thus changes motor speed, the utility model system architecture is stablized, control precisely, to be applicable to very much the elevator device replacing conventional PLC to control, to have higher popularizing value.
Accompanying drawing explanation
Fig. 1 is a kind of structured flowchart of apparatus for controlling elevator.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of apparatus for controlling elevator, comprise micro controller system, dragging motor frequency converter, gated motor, display circuit and floor control signal Acquisition Circuit, micro controller system connects control signal acquisition circuit, floor control signal Acquisition Circuit and deceleration of elevator flat bed control circuit in dragging motor frequency converter, gated motor, display circuit, car respectively, control signal acquisition circuit in car and also connect key circuit in car, floor control signal Acquisition Circuit also connects floor mouth key circuit.
Micro controller system model is AT89C51.
Floor control signal Acquisition Circuit and the interior signal acquisition circuit that controls of car all adopt multiple three state buffer 74LS244 as extended chip.
Correlation type photoelectric switch is provided with outside car.
Principle of work of the present utility model is: in the utility model control system, because incoming signal collection signal is too much, so when gathering in importation, employs four three state buffer 74LS244 as extended chip.In order to prevent address access conflict phenomenon, using 74LS373 as address latch, having used a slice 74LS139 decoder to carry out sorting to four three state buffer 74LS244 of input respectively.The signal realized gathering is elected as to the sheet of incoming signal and has carried out sorting storage, as the infrared induction signal between the weighing-up wave of the flat bed of the request signal in the request signal in entrance hall, car, each floor and restriction signal, lift car and car door, and the signal that can effectively gather and latch continuous renewal in real time prevents loss of data.
Generally, have three parts to form, they are respectively photoelectric switch: transmitter, receptor and testing circuit.Transmitter aims at the mark transmitted beam, the light beam launched generally derives from semiconductor light sources, light-emitting diode, laser diode and infrared-emitting diode, light beam is launched incessantly, or changes pulse width, and receptor is made up of photodiode, photo-transistor, photoemissive element, before receptor, optical element is housed as lens and aperture etc., be testing circuit after it, and it can leach useful signal and this signal of application.In addition, expelling plate and light transmitting fiber is also had in the structural constituent of photoelectric switch, triangle reflecting plate is well-set feedway, it is made up of very little triangular pyramids reflex-reflective material, light beam can be made to return from reflecting plate exactly, and it can change angle of divergence in the scope of optical axis 0 to 25, makes light beam be almost launch from a line of departure, after reflection, or return from this root line of departure.
For the acquisition of signal of control button in car, the control system of the five layers of elevator designed in the design, so there are five floor selection buttons, for passenger's select target floor, be provided with a door open button and a door close button in addition in car, facilitate passenger's hand switch elevator door, but do not affect elevator to automatic opening and closing door during every one deck, also have alarm button to control to interrupt, when elevator have why hinder or inside what has thus passenger can and alarm so that service personnel trouble-shooting.The input expanding port address that these 8 control signals distribute is 01H, namely when micro controller system needs to read cab interior control signal, 01H can be exported to latch, then decoder will select second three state buffer to read control information for the P0 mouth of micro controller system by sheet, seven information collected can be deposited into the 21H byte units of micro controller system bit addressable locations, and the 8th information is as the control signal of external interrupt 0.
The input expanding port address of the 3rd three state buffer is 10H, namely when micro controller system needs to select heavy 3rd 74LS244, first should export 10H to 74LS373 latch, after decoder exports decoded signal, just can select the 3rd energy disperser, micro controller system just can read the storing information of this sheet.Wherein front 5 contacts as flat bed photoelectric sensor, when car is through this inductor, infrared excitation photoelectric sensor, photoelectric sensor will produce a level signal for micro controller system collection.Just can judge after micro controller system collection signal, be have the request of response to need flat bed if current, then micro controller system exports flat bed control signal.6th and the 7th the spacing contact as switch gate, can trigger this two contacts when elevator door opens or closes end position, can send instruction and stop gated motor action after micro controller system collects signal.
The input expanding port address of the 4th three state buffer is 11H.Wherein front four as the contact as deceleration photoelectric sensor, when car is through the light receiving device of some deceleration inductors, the infrared ray meeting exciting light electric inductor sent, now photoelectric sensor can produce the micro controller system collection altogether of a level signal, just can judge that current layer is the need of deceleration after micro controller system collection signal.Another one is as the contact of inductor of weighing, and the contact action when elevator is overweight, can detect this position, if overweight elevator door does not cut out and sends alerting signal before elevator runs.6th contact as infrared inductor, have object when the elevator door is closed in the middle of door, elevator door will open delay immediately and cut out after five seconds again, with preventing damage passenger.
The utility model apparatus for controlling elevator for master controller with AT89C51 micro controller system, by the collection to elevator external control request signal, stores the data message classification collected, then judges, get actv. control signal and export.Output mainly contains the external device such as floor display, the service direction display of elevator, the gated motor of elevator controlling elevator dragging motor, elevator.Motor drag have employed frequency control, is changed the output frequency of frequency converter by micro controller system, thus changes motor speed, the utility model system architecture is stablized, control precisely, to be applicable to very much the elevator device replacing conventional PLC to control, to have higher popularizing value.
Claims (4)
1. an apparatus for controlling elevator, comprise micro controller system, dragging motor frequency converter, gated motor, display circuit and floor control signal Acquisition Circuit, it is characterized in that, described micro controller system connects control signal acquisition circuit, floor control signal Acquisition Circuit and deceleration of elevator flat bed control circuit in dragging motor frequency converter, gated motor, display circuit, car respectively, control signal acquisition circuit in car and also connect key circuit in car, described floor control signal Acquisition Circuit also connects floor mouth key circuit.
2. apparatus for controlling elevator according to claim 1, is characterized in that, described micro controller system model is AT89C51.
3. apparatus for controlling elevator according to claim 1, is characterized in that, described floor control signal Acquisition Circuit and the interior signal acquisition circuit that controls of car all adopt multiple three state buffer 74LS244 as extended chip.
4. apparatus for controlling elevator according to claim 1, is characterized in that, is provided with correlation type photoelectric switch outside described car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420785063.8U CN204297845U (en) | 2014-12-12 | 2014-12-12 | A kind of apparatus for controlling elevator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420785063.8U CN204297845U (en) | 2014-12-12 | 2014-12-12 | A kind of apparatus for controlling elevator |
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| CN204297845U true CN204297845U (en) | 2015-04-29 |
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| CN201420785063.8U Active CN204297845U (en) | 2014-12-12 | 2014-12-12 | A kind of apparatus for controlling elevator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726295A (en) * | 2018-05-29 | 2018-11-02 | 河南德克电子科技有限公司 | Wireless Cargo Lift control device |
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2014
- 2014-12-12 CN CN201420785063.8U patent/CN204297845U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726295A (en) * | 2018-05-29 | 2018-11-02 | 河南德克电子科技有限公司 | Wireless Cargo Lift control device |
| CN108726295B (en) * | 2018-05-29 | 2024-03-29 | 河南德克电子科技有限公司 | Wireless goods elevator control device |
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| GR01 | Patent grant |