CN2038101U - Micro-computer controlled device for elevator - Google Patents
Micro-computer controlled device for elevator Download PDFInfo
- Publication number
- CN2038101U CN2038101U CN 88209568 CN88209568U CN2038101U CN 2038101 U CN2038101 U CN 2038101U CN 88209568 CN88209568 CN 88209568 CN 88209568 U CN88209568 U CN 88209568U CN 2038101 U CN2038101 U CN 2038101U
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- elevator
- height
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- disc
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- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The utility model relates to a micro-computer controlled device for an elevator, which is composed of a main control micro-computer, a photoelectric code disc, a height positioner, a strong electric control cabinet, etc. The micro-computer controlled device for an elevator is characterized in that the accurate information about the car height can be obtained through the reversible counting for the pulse sequence generated by the photoelectric code disc. The height positioner continuously corrects the car height in the process of working, so the completion of the functions, such as the storey display, the deceleration, the opening of the door, the leveling, the terminal spacing, etc., does not depend on various sensors which are installed on well channels or cars. The utility model greatly reduces the arrangement of sensors and cover magnetic boards in the cars and the well channels, reduces the cost of manufacture, installation and maintenance, and improves the leveling performance of the car, being suitable for the collective and selective control of various AC lifting elevators and various DC lifting elevators.
Description
The utility model relates to a kind of elevator computer control device, and it is applicable to the collection selected control system of various interchanges or direct current cage lifter.
At present various elevator computer control devices both domestic and external mostly rely on all places sensor that is installed on hoistway or the car to obtain necessary elevation information when finishing functions such as car position demonstration, deceleration, advance door opening, flat bed, terminal be spacing.For example the Japanese fuji of the International Trade Center, Beijing of installing at present reaches the elevator of elevator and the manufacturing of Beijing Exhibition Centre West Germany Di Sheng company, about six of average every layer of dress sensor and screening magnetic sheets, one one 20 layers elevator need be adorned about 120, not only increased cost, returned installation, debugging and maintenance and all result in hand cramps.
The purpose of this utility model is to propose a kind of new control setup, to improve existing elevator control technology.
The utility model mainly contains master control microcomputer, photo-electric code-disc, height steady arm and heavy-current control cabinet etc. and partly forms.The photo-electric code-disc matches with the master control microcomputer, carry out reversible height counting, thereby microcomputer can be grasped the accurate height and the speed of car at any time, for finish deceleration (comprising that multilayer operation is slowed down and one floor run slows down), open the door, flat bed and terminal are spacing that necessary car height information is provided, finish highly by microcomputer and count.Owing to disturbing or other as can be known reasons not, this counting can engender cumulative errors, this device is provided with three (can establish 1-2 when floor surpasses 18 layers) height steady arms at bottom, top layer and the interlayer of hoistway more, in case cage operation is to certain height steady arm place, immediately the altimeter numerical value in the microcomputer is changed in the numerical value of this height steady arm setting height(from bottom) unanimity, thus the accumulation of height error that kept away face.The height steady arm can also eliminate because the height counting error that variation of ambient temperature causes.
Because this control setup is grasped the height and the speed of operating car, thereby quickening and the braking section control setup can provide corresponding velocity setting signal according to the actual height of car, and not as existing electric life controller, the variation of velocity setting signal is finished by time-delay.In other words, the abscissa of existing electric life controller speed given curve is time t, and the abscissa of this device speed given curve to be car height h(see Fig. 1, Fig. 2).Because this improvement is eliminated or has been alleviated the adverse effect for flat bed that produces owing to the car load variations greatly.
Do into explanation below in conjunction with accompanying drawing for the service condition of this device.
Fig. 1 represents the Velocity-time relation of existing electric life controller;
Fig. 2 represents that the given elevator speed of this control setup is determined by car height h;
Fig. 3 is a structural principle scheme drawing of the present utility model;
Fig. 4 is a photo-electric code-disc organigram.
In Fig. 3,1 expression master control microcomputer, it is CUP with Z80, clock frequency be 4MHz have a 4K EPROM as memory under program and have backup battery, can keep data more than half a year after the power failure.Other has the RAM of 2K, possesses power-down protection and write-protect function, is used to deposit the various parameters that needs are adjusted, and also can be used for depositing a part of program.
2 expression floor and service direction telltales.Be used to show the floor at lift car place and the service direction of car, they are installed in the door place, the Room of each floor and the inside of lift car.
Ladder and choosing layer button and indicator lamp are exhaled in 3 expressions.They all are the buttons that has indicator lamp, are contained in respectively on the control panel of the door place, the Room of each floor and lift car.The floor that the passenger of elevator calls elevator and need to select to stop by these buttons.All indicator lamps all are with short-circuit protection and the indication of opening circuit.When any one pilot lamp loop short circuit, the control microcomputer can not influence the normal operation of other indicator lamps and total system at a millisecond with this loop of internal cutting off, and gives the alarm, and shows error message.The attendant can learn that by checking the error message form short trouble appears in which indicator lamp, is easy to repair or change.The master control microcomputer that indicator lamp burns out this device when open circuit fault occurring also can automatic diagnosis, and this diagnosis function is mainly realized by microcomputer software.
4 expression photo-electric code-discs, it is installed on the traction motor main shaft, also can be installed on the speed limited wheel of elevator speed governor.It is used for producing the pulse train that frequency is directly proportional with running velocity, and can directly obtain the direction of real-world operation from the signal that it produces, so that reversible height counting.As Fig. 4, the photo-electric code-disc is made of blanking disc 9, photosensor 10 and shaping pulse and direction discriminator circuit 11, and the impulse singla of output is directly sent into master control microcomputer 1.
5 expression height steady arms, it also is a photo-electric.Its anti-dazzle device is installed in the car side, and photosensor has three, is installed in bottom, top layer and the interlayer of hoistway respectively.When the stop of elevator surpasses 18 layers, can increase 1-2 again.The height steady arm that top layer and bottom are installed also has both the function that terminal is forced deceleration.
6 other signal supervisory instruments of expression comprise Room door switch, door switch, terminal limit switch, safety tongs switch, the overweight switch of car, safety shoe switch, gate switch, speed limiting switch or the like.These signals mostly be greatly elevator safe-guard system was equipped with, they no longer describe in detail with being contained in basic identical on the existing elevator.
7 expression heavy-current control cabinets.DC elevator is used and is exchanged the heavy-current control cabinet with direct current heavy-current control cabinet, alternating-current electrical lift.They are used for controlling and driving traction motor and switch door motor.Different is that the given signal of car speed is produced by the master control microcomputer.
8 expression interface circuits, it partly is made up of PIO chip, CTC chip and keyboard scan matrix, photoelectric isolating circuit etc., and its effect is that the circuit with master control microcomputer and external device couples together.
When the elevator computer control device send electricity, at first detect car by the height steady arm and whether be in bottom position, in this way, elevator promptly is ready, and can respond the calling signal of each stop; Be not in bottom position as car, at this moment because the height computer of car no initializtion still wouldn't respond calling signal, but operation downwards automatically, up to by any one height steady arm, can respond the outgoing call signal after finishing the initialization of height computer.
In order to compensate the adverse effect of bringing to height computer owing to the mechanical drive gap, in the master control microcomputer, be provided with two height computers of major-minor.Fig. 5 represents the logic diagram of photo-electric code-disc break in service.Counting machine C wherein
1Be used for the car height counting, secondary counting machine C
2The counting that is used for the mechanical drive gap.When the traction motor was just changeing, the pulse train that the photo-electric code-disc is produced at first was used for secondary counting machine C
2Forward counting, have only the C of working as
2The numerical value of the full regulation of meter is when (this numerical value is equivalent to the mechanical drive gap), and follow-up pulse side is used for basic counter C
1Forward counting.When the traction motor reversed, above-mentioned pulse train at first was used for C
2Contrary counting, treat C
2When equalling zero, succeeding impulse side is used for C
1Contrary counting.
The utility model adopts large panel structure, main control microcomputer, interface circuit, drive circuit of indicator are contained on the printed circuit board (PCB) of a 500 * 300mm, this bar printing plate is fixed in the metal flat box and is shielded, the line overwhelming majority outer with machine adopts multi-pin connector to be connected, in case main frame damages, quick-replaceable can be carried out, the fault of main control microcomputer needn't be processed at the scene.
The utility model can support the use with various novel elevators, also can be used for the transformation of the backward old elevator of control technology, has the characteristics such as the flat bed performance is good, control appliance simple, cost is economized, easy to maintenance, safe and reliable.
Claims (4)
1, a kind of elevator computer control device, partly form by master control microcomputer 1, heavy-current control cabinet 7 etc., it is characterized in that on the speed limited wheel of the traction motor main shaft of elevator or speed-limit device, installing photo-electric code-disc 4, directly import the master control microcomputer by the impulse singla that it produces, carry out reversible height counting; Three (can increase 1-2 when elevator floor stops surpasses 18 layers) height steady arms are installed in hoistway, are installed in bottom, top layer and the interlayer of hoistway respectively.
2, it is characterized in that by the described elevator computer control device of claim 1 the master control microcomputer is that CPU, clock frequency are that the EPROM that 4MHz has a 4K is a memory under program with Z80; the RAM of 2K is as random-access data memory and have backup battery; other has a RAM with 2K of power-down protection and write-protect function, deposits the various parameters and the subprogram that need adjustment.
3, by the described elevator computer control device of claim 1, it is characterized in that the photo-electric code-disc is made of blanking disc 9, photosensor 10 and shaping pulse and direction discriminator circuit 11.
4, by the described elevator computer control device of claim 1, it is characterized in that the height steady arm is a photosensor, it hides magnetic sheet and is installed in the car side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88209568 CN2038101U (en) | 1988-08-17 | 1988-08-17 | Micro-computer controlled device for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88209568 CN2038101U (en) | 1988-08-17 | 1988-08-17 | Micro-computer controlled device for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2038101U true CN2038101U (en) | 1989-05-24 |
Family
ID=4843191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88209568 Expired - Lifetime CN2038101U (en) | 1988-08-17 | 1988-08-17 | Micro-computer controlled device for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2038101U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037055C (en) * | 1995-01-12 | 1998-01-14 | 孙文林 | Microcomputerized PWM speed regulator for DC elevator |
| CN100564216C (en) * | 2003-02-03 | 2009-12-02 | 奥蒂斯电梯公司 | Position fixing system and the apparatus and method of measuring the position of moveable platform |
-
1988
- 1988-08-17 CN CN 88209568 patent/CN2038101U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037055C (en) * | 1995-01-12 | 1998-01-14 | 孙文林 | Microcomputerized PWM speed regulator for DC elevator |
| CN100564216C (en) * | 2003-02-03 | 2009-12-02 | 奥蒂斯电梯公司 | Position fixing system and the apparatus and method of measuring the position of moveable platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |