CN2057413U

CN2057413U - Computer controller for elevator

Info

Publication number: CN2057413U
Application number: CN 89202907
Authority: CN
Inventors: 宋文阁
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-03-22
Filing date: 1989-03-22
Publication date: 1990-05-23

Abstract

The utility model relates to a computer controller for elevators, which is composed of a main control microcomputer board, a floor selective board, an elevator calling machine secondary board, a frequency-variable speed adjuster, a set of floor encoders, etc., wherein, the main control microcomputer and an elevator calling secondary machine form a main and secondary structure to form a multiple CPU distributed microcomputer system through serial communication. Each of the CPUs is a high-performance single-chip microcomputer. Compared with the similar products, the utility model has the advantages of simple structure, reliable operation, minimum equipment connecting lines, convenient installation and maintenance, strong control function, high story-aiming precision, stable and comfort operation, remarkable power-saving effect, etc. The utility model is suitable for the automatic control of alternating current lifting elevators.

Description

Computer controller for elevator

This device relates to the automatic control device that elevator control gear that a kind of many CPU of usefulness one chip microcomputer controls relates to be suitable for the cage lifter of various AC voltage adjusting frequency-adjustable speed-adjustables (being called for short the VVVF speed governing) furtherly.

The present general structure of general-duty computer-shape elevator control gear is more complicated all.For example the computer in its control setup of Mitsubishi's elevator of now having introduced partly concentrates in together; And for example my original application " computer elevator control gear " is to adopt parallel I/O external bus structure, though than the on line of the elevator control gear of other form obvious minimizing is arranged, but still on line is more, and also parallel long line transmission signals anti-interference process is relatively more difficult.Reliability is lower.

Main purpose of the present utility model proposes in order to address the above problem.The device that the utility model proposed has not only comprised the existing existing various controllable function of various elevator automatic control devices.And adopted many CPU of single chip microcomputer distributed frame.Institute (is called for short the full-computerized lift appliance) so that the distributed elevator control gear of this full-computerized and further simplifies the structure and reduced the control signal on line, thus the more failure-free work of this device.Cost is low, installs and maintenance is all more convenient and economize on electricity more than 60%.

Now full-computerized elevator automatic control device of the present utility model is elaborated in conjunction with figure below:

Fig. 1 is a full-computerized elevator control gear principle of work block scheme.

Fig. 2 is the terraced slave schematic diagram of exhaling of full-computerized lift appliance

Fig. 3 is a full-computerized lift appliance main control microcomputer schematic diagram

Fig. 4 exhales terraced slave plate for the full-computerized electric installation

Fig. 5 is a full-computerized lift appliance main control microcomputer plate

Comprise following functional component with reference to the distributed elevator control gear of Fig. 1 full-computerized of the present utility model; Number in the figure 1 is the main control microcomputer plate, is used for executive routine and management and exhales terraced slave and operation control; Label 2 is layer position coders, is used for executive routine and management and exhales terraced slave and operation control; Label 2 is layer position coders, is used to differentiate the current position of elevator car; Label 3 is choosing layer button and function control switch plate, is used for choosing layer and function control; Label 4 is AC frequency conversion speed regulator, is used for driving and controlling main traction electric machine; It can be automatically according to the running velocity and the flat bed that give the desirable lifting speed curve accuracy control elevator of setting earlier under the control of main control microcomputer; Label 5 is to exhale terraced slave plate, being used for installing exhales terraced slave and shows charactron (LED), its receives calling signal and it is processed into the serial transfer data and transmits this layer to main control microcomputer calling signal is arranged, and receive the layer position shows signal that main control microcomputer transmits, shows signal is delivered to light-emitting diode display, demonstrate the service direction and the position of current elevator; Label 6 is serial communication signal buses, is used for signal transmission between main control microcomputer and slave.

It is the on line that reduces between each one for further that this device adopts the purpose of master-salve distributed structure, improves system's antijamming capability raising reliability and also is easy for installation and maintenance, and adopting variable-frequency governor is to move controller performance and economize on electricity in order to improve elevator.

Can realize the various functions of elevator control according to above-mentioned each parts.Lifting and exchanging elevator is example, when the up choosing of needs layer, pressing choosing layer button 3 main control microcomputers 1 is that layer selection signal is arrived in scanning, after the main control microcomputer routine processes judged that the safe operation condition is set up, promptly the starting speed curve controlled traction electric machine smooth starting raising speed of giving setting earlier by frequency converter by a special-purpose starting control line and direction control line control frequency converter 4 was until at the uniform velocity.The coder action of operation position, middle level is as follows, and sensor interrupts to the main control microcomputer application when cage operation arrives flat bed, and master cpu promptly reads in layer position coding at that time.When elevator run to should stop ladder before the certain distance main control microcomputer just the control line by a special use send throw-over signal, control frequency converter and slow down by desirable speed and guarantee accurate level by giving the reduction of speed curve accuracy control elevator of setting earlier.This moment, once operation promptly came to an end.When elevator need continue to move automatically, main control microcomputer is by serial communication interface scanning calling signal and parallel interface scanning layer selection signal, when new calling signal and layer selection signal, main control microcomputer judges that the establishment of safe operation condition just can repeat above-mentioned operational process automatically and continue.

With reference to Fig. 2, this figure is the terraced slave schematic diagram of exhaling of the utility model full-computerized device, and wherein label 7 is to exhale terraced slave CPU, is used to carry out the slave program and receives send serial data; Label 8 is memory under programs, is used to store the whole programs from microcomputer; Label 9 is position display latch devices, is used to latch and drives layer position, a position shows signal; Label 10 is ten latch, is used to latch and drives ten layer position shows signal; Label 11 is position LED nixie displaies, is used to show the units of lift car place floor; Label 12 is ten LED nixie displaies, is used to show the tens of lift car place floor; Label 13 is coders, the floor numbering that is used to be ranked and originally exhales terraced slave; Label 14 is descending hall buttons, is used to produce descending calling signal, and it is connected to the external interrupt INTO of mark 7 single chip microcomputers; Label 15 is up call buttons, is used to produce the up call signal, and it is connected to the external interrupt INT1 of label 7 micro controller systems; Label 16 is serial input ports, is used to receive the serial signal that main control microcomputer is sent; Label 17 is serial output interfaces, is used to send the slave serial signal.

For instance, when pressing descending hall buttons, just produce interrupt signal at INTO, slave CPU just reads the floor coding after receiving the INTO signal, by serial interface, serial transmission bus 6 calling signal is sent to main control microcomputer through program arrangement back, under operation procedure was managed, elevator stopped ladder at this layer forward the time through the main control microcomputer decision analysis, if operation procedure is judged to be and stops the scalariform attitude, elevator promptly drives towards the floor that the someone exhales ladder automatically.

Above-mentioned main control microcomputer 1 and exhale terraced slave 5 and variable-frequency governor 4 to unite to constitute the complete structure of this full-computerized principal and subordinate microcomputer elevator whistle control system device.

With reference to Fig. 3, this figure is the main control microcomputer schematic diagram of full-computerized device, and wherein label 18 is master control one-chip CPUs, is used for the executive routine management system by giving the provisioning request operation; Label 19 is special-purpose control lines, be used for the starting of frequency converter, up and down, throw-over control; Label 20 is signal latch, is used to latch drive the temporary of various indicator lamp signals, and its quantity is decided with floor; Label 21 is signal lamps, is used for demonstration and exhales ladder, choosing layer and various function signal; Label 22 is units sign indicating number latch, is used to latch driving floor units; Label 23 is 10-bit digit latch, is used to latch driving floor tens; Label 24 is LED charactrons, is used to show the floor units; Label 25 is LED charactrons, is used to show the floor tens; Label 26 is choosing layer keyboard, is used for elevator choose layer; Label 27 is layer position coders, is used to judge elevator position; Label 28 is serial input interfaces, is used to receive exhale the terraced data of exhaling that terraced slave sends; Label 29 is serial output interfaces, is used for sending data to slave.

For instance, master cpu reads in the layer selection signal scanning when pressing choosing layer keyboard 26, lights choosing layer indicator lamp through program analysis.Judge that safety condition becomes to pass through immediately special-purpose control line 19 control frequency converters starting operation on request.When to level position, read floor and deliver to floor indicator 24,25 and demonstrate the car position by layer position coder 27.And, car position is delivered to each layer slave telltale by serial interface 28,29 and the communication of slave formation.Go up master cpu 18 when cage operation to the throw-over point of desiring to stop several layers and promptly decide curve and slow down and stop ladder by giving by special-purpose control line control frequency converter, and breath go out relevant layer selection signal lamp and slave calling signal lamp.

With reference to Fig. 4, this figure is for exhaling terraced slave plate arrangement plan, and wherein label 30 is light-emitting diode displays, is used to show elevator car position; Label 31 is up call indicator lamps, is used to show that main frame has responded exhales ladder, and the passenger can wait for and stop ladder; Label 32 is up call buttons, is used for up call; Label 33 is the descending terraced indicator lamps of exhaling, and is used to show that the descending ladder of exhaling is responded; Label 34 is descending hall buttons, is used for the descending ladder of exhaling; Label 35 is 5V constant voltage power suspplys, is used for providing power supply to slave; Label 36 is 220V battery sockets, is used to introduce power supply; Label 37 is serial communication sockets, is used to connect serial communication bus; Label 38 is LED light: be used for the indicating elevator service direction; Label 39 is slave printed wiring boards, is used for assembling and exhales each device of terraced slave.

With reference to Fig. 5, this figure is the utility model main control microcomputer plate arrangement plan, and wherein label 40 is LED charactrons, is used to show elevator car position; Label 41 is universal serial bus sockets, is used to connect serial communication bus; Label 42 is main control microcomputer printed wiring boards, is used to assemble each device of main control microcomputer; Label 43 is layer position code device signal sockets, is used for introducing layer level sensor signal; Label 44 is constant voltage power suspplys, and being used for provides power supply to main control microcomputer and choosing layer keyboard; Label 45 is 40 line sockets, and the signal that is used for main control microcomputer plate and choosing layer button panel connects; Label 46 is choosing layer button, is used for the choosing layer; Label 47 is LED light, is used for indication choosing layer and calling signal; Label 48 is LED light, is used to indicate operation function and breakdown signal; Label 49 is choosing layer printed wiring board, is used for assembling choosing layer button and various indicator lamp; Label 50 is LED light, is used to show the elevator service direction.

According to embodiment provided by the utility model, wherein exhale terraced slave printed wiring board shown in Fig. 4 label 39, its preferred dimensions can be 80 * 200mm, the preferred dimensions of the main control microcomputer plate shown in Fig. 5 label 42 can be 160 * 300mm, and the preferred dimensions of the choosing layer printed board shown in the label 48 is 120 * 400mm.But well-known, the technical personnel of being engaged in the work of present technique field can also can be designed the printed board of different chi inch and pattern with reference to design of the present utility model, but these still do not exceed design scope of the present utility model.

Claims

1, the elevator automatic control device of a cover full-computerized, it is characterized by: this control setup includes a main control microcomputer plate 42, one and selects laminate 3, some terraced slave plate 5 (it is installed in the push button call box), variable-frequency governors 4 (it is placed in driven by power cabinet or the case) of exhaling, more than each parts form complete Distributed C PU elevator automatic control device.

2, according to the described elevator automatic control device of claim 1, it is characterized by: wherein said main control microcomputer is realized with single chip microcomputer, is used for the management and the control of master-slave mode system of distribution.

3, according to the described full-computerized elevator of claim 1 automatic control device, it is characterized by: wherein saidly exhale terraced slave, realize, be used for realizing exhaling ladder and display management from single chip microcomputer.

4, according to the described full-computerized elevator of claim 1 automatic control device, it is characterized by: wherein said serial communication connects with universal serial bus.

5, according to the described full-computerized elevator of claim 1 automatic control device, it is characterized by: wherein said variable-frequency governor 4 is electric current, the speed double Closed-Loop Speed Governing System that constitute with 16 micro controller systems and high power transistor.