KR19990070212A - Elevator control - Google Patents

Abstract

The present invention relates to an elevator control device, and conventionally, the installation and adjustment time of the slow down switch takes a lot of time, and also the installation distance error of the slow down switch can be large due to the carelessness of the installer and the lack of installation technology by the beginner. There was a problem that could threaten. Accordingly, the present invention provides a microcomputer-controlled rope type elevator comprising: a control panel central processing apparatus for controlling an elevator, a car side central processing apparatus for controlling a car side, and serial communication between the control panel central processing apparatus and the car side central processing apparatus. Control panel and car-side serial communication interface device to interface the controller, rotary encoder to change the moving distance of the car into pulse, counter device to count the pulse, position detection device to detect the position of the car, slow down to the car and the hoistway The switch panel is equipped with a key input device for adjusting the slowdown switch installation and a display device for displaying the slowdown switch installation and adjustment information so that the control panel central processing unit controls the distance adjustment of the slowdown switch. Down-switch mounting distance Means of measuring the mounting distance compared to the specification table and slow down Displayed via the display device a state of the contact position to the installer to reduce the installation time and the setting time of the slow-down switch by giving also the addition there is an effect that it is possible to prevent a mistake by the installer.

Description

Elevator control

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator control apparatus, and more particularly, to an elevator control apparatus capable of eliminating an emergency stop of an elevator due to excessive installation time and adjustment time of a slow down switch and installation adjustment error.

In recent years, the demand for high-speed elevators is increasing with the rise of high-rise buildings, and the high-speed elevators have a longer deceleration distance, which requires an increase in the number of contacts of the slowdown switch.

1 is a schematic diagram of a general elevator, and as shown therein, the car 11 and the counter waiter 13 are connected to the sheave 12, and the hoistway lowering down switch cam 14 and the upper lowering down switch The cam 15 is mounted, and the upper device of the car 11 includes a slow down switch cam box 16, a slow down switch roller 17, and a position detection device 18.

FIG. 2 shows the contact state of the slow down switch when the car is at the lowermost floor. The slow down switch SDS is a slow down switch cam box 21, a slow down switch roller 22, and a slow down switch cam 23. FIG. The slow down switch cam box 21 is composed of a slow down switch contact (21_a, 21_b).

Fig. 3 is a block diagram showing the structure of a conventional elevator control apparatus, and as shown therein, the control panel side includes a control panel central processing apparatus 31 for controlling the system; A storage device 32 for storing programs and data; A rotary encoder 33 for outputting a movement amount of the car 11 in a pulse; A waveform shaping device 33 for shaping a waveform containing noise; A counter 35 counting pulses; A slow down switch device 36 for outputting a specific position of the car 11; A position detecting device 37 for detecting the position of the car 11; A parallel interface device (38) for interfacing the input of the slow down switch device (36) and the position detection device (37) with the control panel central processing unit (31); A control panel side serial interface device 39 for serial communication with the car 11, and a car central processing device 40 having a control function on the car side; A storage device 41 for storing programs and data; A car side serial interface device 42 for serial communication with the control panel; A car side signal input / output device 43 for generating a car side signal; The car side signal input / output device 43 is composed of a parallel interface device 44 for parallel interface with the car central processing device 40, and the operation of the conventional device configured as described above will be described.

First, when the car 11 on which the passengers are boarded moves, the slow down switch roller 17 on the top of the car 11 comes into contact with the lower or upper slow down switch cams 14 and 15 installed in the hoistway.

At this time, the slow down switch roller 17 operates the slow down switch contacts 21_a and 21_b in the slow down switch cam box 16 according to the rotation angle.

The slow down switch contact state (21_a, 21_b) is not the contact between the slow down switch roller 17 and the slow down switch cam (14, 15), the slow down switch contact state (21_a, 21_b) are all B contact When contacted, the state of the slow down switch contact 21_a, 21_b is in accordance with the slow down switch cams 14 and 15 in contact with the slow down switch roller 17, or the down slow down switch 21_a or upslow down. The contact state of one of the switches 21_b changes.

If the car 11 is at the lowermost floor as shown in Fig. 2, the contact state 21_a, 21_b in the slow down switch cam box 21, that is, the down slow down switch 21_a are in the A contact state and the up slow down switch (21_b) is all in the B contact state.

Here, the amount of movement of the car 11 is changed into a pulse waveform by the rotary encoder 33, which contains external noise while being transmitted to the input terminal of the waveform shaping device 34.

At this time, the pulse waveform is a shaped pulse waveform from which noise is removed by the waveform shaping device 34. The shaping pulse waveform is counted by the counter device 35 and the control panel central processing device 31 is the counter. The device 35 reads the pulse counter value, calculates the current speed and the current car position from the counter value by using arithmetic function, stores it in the storage device 32, and uses it for the control of the elevator.

The control panel central processing unit 31 reads the contact state 21_a, 21_b and the position detecting device 37 of the slow down switch device 36 mounted on the car top at a predetermined cycle through the parallel interface device 38. .

At this time, the installation and adjustment of the slow down switch (SDS) of the elevator is performed by the installer moving the car 11 at a low speed, using the installation distance and length measuring tool of the slow down switch (SDS), the slow down switch contact point 21_a, 21_b. Determine the operation time of and adjust the slow-down switch contacts 21_a and 21_b by directly checking with the tester.

However, in the related art, the installation and adjustment time of the slow down switch takes a lot of time, and the installation distance error of the slow down switch may be large due to the carelessness of the installer and the lack of installation technology by the beginner, which may threaten the safety of the elevator. .

Therefore, the present invention invented in view of the above problems, the microcomputer displays the slow down installation distance to the installer to shorten the installation time and adjustment time of the slow down switch and to prevent the mistake of the installer The object is to provide a control device.

1 is a schematic view showing the configuration of a general elevator.

Fig. 2 shows the contact state of the slow down switch when the car is at the lowest floor.

Figure 3 is a block diagram showing a configuration for a conventional elevator control device.

Figure 4 is a block diagram showing the configuration for the elevator control device of the present invention.

FIG. 5 is a flow chart of FIG. 4.

Fig. 6 is an installation distance specification table of the slow down switch in Fig. 4;

* Description of the symbols for the main parts of the drawings *

31: control panel central processing unit 32: storage unit

33: rotary encoder 34: waveform shaping device

35: counter device 36: slow down switch

37: position detection device 38: parallel interface device

39: control panel side interface unit 40: car central processing unit

41: storage unit 42: car side interface unit

43: Car signal input and output device 44: Parallel interface device

45: key input device 46: display device

The above object is a microcomputer-controlled rope type elevator comprising: a control panel central processing apparatus for controlling an elevator, a car side central processing apparatus for controlling a car side, and serial communication between the control panel central processing apparatus and the car side central processing apparatus. Control panel and car-side serial communication interface device to interface the controller, rotary encoder to change the moving distance of the car into pulse, counter device to count the pulse, position detection device to detect the position of the car, slow down to the car and the hoistway It is achieved by having a switch and having a key input device for the slow down switch installation adjustment and a display device for displaying the slow down switch installation and adjustment information, attached to the elevator control apparatus according to the present invention as such It will be described in detail with reference to.

Figure 4 is a block diagram showing the configuration of the elevator control apparatus of the present invention, the control panel side as shown in the control panel central processing unit 31 for controlling the system; A storage device 32 for storing programs and data; A rotary encoder 33 for outputting a movement amount of the car 11 in a pulse; A waveform shaping device 33 for shaping a waveform containing noise; A counter 35 counting pulses; A slow down switch device 36 for outputting a specific position of the car 11; A position detecting device 37 for detecting the position of the car 11; A parallel interface device (38) for interfacing the input of the slow down switch device (36) and the position detection device (37) with the control panel central processing unit (31); A control panel side serial interface device 39 for serial communication with the car 11, and a car central processing device 40 having a control function on the car side; A storage device 41 for storing programs and data; A car side serial interface device 42 for serial communication with the control panel; A car side signal input / output device 43 for generating a car side signal; A parallel interface device 44 for paralleling the car side signal input / output device 43 with the car central processing device 40; A key input device 45 which receives an installer's command for installing and adjusting a slow down switch (SDS); The operation of one embodiment of the present invention constituted by the display device 46 which displays the installation and adjustment information of the slow down switch SDS will be described.

First, the general operation is the same as in the prior art. That is, the amount of movement of the car 11 is converted into pulses by the rotary encoder 33, and the pulse waveform contains external noise while being transmitted to the input terminal of the waveform shaping device 34.

Thereafter, the pulse waveform is a square pulse waveform in which noise is removed by the waveform shaping device 34, so that the number of pulses is countered by the counter device 35, and the control panel central processing device 31 is a pulse counter in the counter device 35. The value is read, and the current car 11 position is obtained as a counter value using an arithmetic function, stored in the storage device 32, and used for control of the elevator.

In addition, the state of the contact state 21_a, 21_b of the slow down switch SDS mounted on the car 11 and the position detection device 37 are controlled by the control panel central processing unit 32 through the parallel interface device 38. Read at regular intervals.

In this case, the communication between the control panel central processing unit 32 and the car side central processing unit 40 is performed through the control panel side serial interface device 39 and the car side serial interface device 42.

Here, unlike the prior art, the car side central processing apparatus 40 reads and writes the car side signal input / output device 43, the key input device 45, and the display device 46 through the parallel interface device 44.

That is, the installer inputs the slowdown switch (SDS) installation adjustment mode and the specifications as shown in FIG. 6 through the key input device 45, and displays the slowdown switch (SDS) adjustment state through the indicator device 46. .

At this time, the installation and adjustment of the elevator slow down switch (SDS) will be described by the flowchart of FIG.

First, when the program starts, it is determined whether or not the slow down switch (SDS) adjustment mode is set (SP100), and the slow down switch (SDS) adjustment mode is set by the installer through the key input device 45 on the upper part of the car 11. do.

In this case, if the result of the determination (SP100) is not the slow down switch (SDS) adjustment mode, the process is terminated, and if the slow down switch (SDS) adjustment mode, step SP101 is performed.

In step SP101, it is determined whether the car 11 has the lowest zero level, and if it is not the zero level, step SP102 is performed to drive down at a low speed, and if the lowest level, step SP103 is performed.

In step SP103, each variable is initialized.

That is, the number of slow down switches (SDS) is stored in SDS_NO, and when the slow down switch (SDS) is adjusted, the rotary encoder distance value (SDS_RE_L) is 0 and the slow down switch (SDS) contact state (21_a, 21_b) is input. Set the variables SDSD_IN_PORT [] to 0 and the variables SDSD_OUT_PORT [] and SDSU_OUT_PORT [] having information to output the state of the slowdown switch (SDS) to the display device 46.

Then, in step 104, if the ON CAR OFF button is OFF, step 104 is repeated, and if the ON CAR UP button is ON, step SP105 is performed, that is, the car 11 is run up at low speed.

Next, at step SP106, the value of the down-slow down switch SDSD1 of the slow down switch SDS installation distance specification table as shown in Fig. 6 is stored, and the variable SDSD [1] and the distance from the lowest zero level are present. Compares SDS_RE_L for equality.

If it is not the same as the comparison result in the step SP106, the operation is continued by performing the step, and if it is the same, the process goes to step 107 and the car 11 is stopped.

At this time, the slow down switch (SDS) installer reads the SDSD_IN_PORT [1] receiving the SDSD1 contact input, and if it is OFF, continues to step 108 to check whether the SDSD1 contact is input, and performs the step 109 when the SDSD1 contact is turned on. do.

If the SDSD_OUT_PORT [1] is turned on in step 109, the indicator device 46 is notified that the SDSD1 is turned on so that the installer can terminate the SDSD1 adjustment.

Thereafter, at step SP110, SDS_NO and i are compared, and if not, increase i by 1 and repeat step 111 at step 104 until i and SDS_NO are equal to adjust the SDSD contact mode. .

When i and SDS_NO are equal, step 102 is performed to store the value of SDS_NO in i.

Then, in step 113, if the ON CAR UP button is OFF, step 113 is performed again, and if the ON CAR UP button, the step 114 of up-running the car 11 is performed.

Then, in step 115, it is compared whether SDSU [SDS_NO] in the slowdown switch (SDS) installation distance specification table is equal to SDS_RE_L having a distance from the lowest zero level to the present.

In step 115, if the comparison result is not the same, step 114 is performed to continue the up operation, and if it is the same, go to step 116 to stop the car 11.

At this time, the installer adjusts the SDSU (SDS_NO) contact to make the contact A contact.

Then, in step 117, if the SDSU_IN_PORT [SDS_NO] receiving the SDSU (SDS_NO) contact input is read and turned off, step 117 is continued to check whether the SDSU (SDS_NO) contact has entered, and in step 117, the SDSD ( If the SDS_NO) contact is on, step 118 is performed.

If the SDSU_OUT_PORT [SDS_NO] is turned on in step 118, the display device 46 informs that the SDSU (SDS_NO) is turned on so that the installer can terminate the adjustment of the SDSU (SDS_NO).

After that, if i is not equal to 1 in the step, if i is not equal, i decreases by 1 and repeats steps 113 to 120 until i becomes 1 to adjust all SDSU contacts, and if i equals 1, then ends do.

As described in detail above, the present invention compares the distance adjustment of the slow down switch to the control panel central processing apparatus by comparing the moving distance and the slow down switch installation distance specification table. By displaying through the display device, the installation time and adjustment time of the slow-down switch are shortened, and an error of the installer can be prevented.

Claims (1)

A rope type elevator controlled by a microcomputer, comprising: a control panel central processing apparatus (31) for controlling an elevator; A car side central processing apparatus 40 for controlling the car 11 side; A control panel and a car side serial communication interface device (39, 42) for interfacing serial communication between the control panel central processing unit (31) and the car side central processing unit (40); A rotary encoder 33 for converting the moving distance of the car 11 into pulses; A counter device 35 for counting pulses; A position detecting device 37 for detecting the position of the car 11; A key input device (45) having a slow down switch (SDS) in the upper part of the car (11) and the hoistway for adjusting the slow down switch installation; Elevator control device characterized in that consisting of a display device 46 for displaying the down-down switch installation and adjustment information.