KR100346282B1 - Control apparatus of elevator by serial communication - Google Patents

Abstract

The present invention relates to an elevator control apparatus by serial communication to check the input / output signal and the error state of the elevator control panel in the elevator. The elevator control apparatus by serial communication includes a control panel for controlling the movement of the elevator, and a lifting platform operating panel installed inside the elevator for applying a predetermined signal to register the elevator destination floor and to control the opening and closing of the door. In the elevator system provided, the platform operation unit 200, the mode setting unit for setting the mode conversion from the service floor setting mode to the display setting mode in order to check the input / output signal state and error state of the control panel 100 And a communication connection unit 220 for performing serial communication in accordance with a predetermined communication protocol with the control panel 100 after setting the display mode according to the key operation of the mode setting unit 230, and the communication connection unit ( Checking the input / output signal state and the error state of the control panel 100 applied from the 220, the operation and overall control A microprocessor 210 for performing a wording operation, a memory unit 240 for storing a corresponding program for checking the input / output signal state and an error state and data processed by the program, and storing the data in the microprocessor. It is configured to include a LCD control unit 250 to control to perform the display operation after the analysis operation of the processor 210, and thus there is an advantage that the system can be checked in the elevator.

Description

Elevator control device by serial communication {CONTROL APPARATUS OF ELEVATOR BY SERIAL COMMUNICATION}

The present invention relates to an elevator control apparatus by serial communication, and more specifically, the input / output signal generated from the control panel for controlling elevator operation and error checking of the elevator system through a platform operation unit and an LCD unit which are mediated by serial communication. The present invention relates to an elevator control apparatus by serial communication for simple confirmation.

In general, elevators are longitudinal transportation means, and are designed and operated depending on the purpose of the building from small buildings to skyscrapers of several tens of floors, and the role of elevators due to the higher floors of buildings is increasing.

Such an elevator is installed as a proper number in a predetermined position of the building bar, the elevator system, as shown in Fig. 1, the hoistway 20 through which the platform 30 passes and the machine room 10 installed above the hoistway 20. The machine room 10 is provided with a hoist for moving the platform 30, a governor for detecting an abnormal speed of the platform 30, a power panel board, and a control panel for controlling the movement of the platform 30. The hoistway 20 is usually provided with a hoist 30, a counterweight 40, and the like.

When the user operates the platform operation panel, the platform button, etc. as a predetermined operation mechanism inside / outside the platform 30, the signals generated according to the operation operation are transmitted to the control panel interconnected with the communication cable.

And, the control panel is equipped with a microcomputer, the connection state made in the hoistway 20 and the machine room 10, the error inspection of the elevator system, the installation / maintenance of the elevator, the input / output signal state generated in the control panel, etc. Monitoring, such monitoring operation can be confirmed by the operator directly through the control panel 100, or the operator connects the control panel 100 and the CRT (Cathode-ray tube) display device using a communication cable, It could be checked through the CRT display.

However, in order to repair a safety accident for an elevator, for example, when an electrical connection error or an abnormality occurs during driving, such as a power failure or a motor driving signal, the operator may not only have a control panel in the machine room but also a worker directly or inside the elevator of the hoistway The maintenance work must be carried out at.

In other words, the elevator in the building is to install a microcomputer for the management of the elevator stand and the platform and the platform to reduce the burden of the microcomputer for each floor management, and the machine room control panel for each floor management to improve the performance of the elevator, etc. In this case, the microcomputer is arranged for the driving control, so that it is possible to check the error state of the input / output signals between the control panel and the elevator by using the microcomputer, but in addition, the operator can directly control the control panel inside / outside the elevator. It is necessary to check the input / output signal or error condition of the elevator system, and to carry out work to fix it.

Therefore, the operator performs the maintenance work in the hoistway as well as the machine room. At this time, the worker cannot easily check the input / output signals between the machine room and the elevator, and there is an additional problem that the work efficiency is lowered accordingly. .

In addition, when only one worker performs the maintenance work in the elevator of the hoistway, the worker himself has to check the machine while reciprocating the machine room and the elevator directly.

Therefore, the present invention is a control panel for controlling the elevator and the elevator unit to add a special key function according to any mode setting operation to perform a signal transmission through the serial communication medium and the LCD unit so that you can easily check the results according to the signal transmission It is an object of the present invention to provide an elevator control apparatus by serial communication, which can more easily perform the input / output signal check of the control panel and the error check according to the elevator drive.

The elevator control apparatus according to the serial communication of the present invention for achieving the above object, the control panel for controlling the movement of the elevator, and applying the predetermined signal to register the elevator destination floor and control the opening and closing of the door with the control panel. In an elevator system having a platform operation panel installed inside the elevator, the platform operation panel is to set the mode change from the service floor setting mode to the display setting mode to check the input / output signal state and error state of the control panel A mode setting unit, a communication connection unit performing serial communication according to a predetermined communication protocol with the control panel after setting the display mode according to the key operation of the mode setting unit, and an input / output signal state of the control panel applied from the communication connection unit And error status as well as operation and overall A microprocessor for performing a control operation, a memory unit for storing a corresponding program for checking the input / output signal state and an error state and data processed by the program, and analyzing the data after the microprocessor analysis operation. It is configured to include an LCD control unit for controlling to perform the display operation.

Preferably, the LCD control unit further comprises an LCD unit connected to the lift table operating unit to display the data according to the control operation of the LCD control unit.

According to the present invention as described above, the input / output signal and the error state of the control panel transmitted by the serial communication can be confirmed inside / outside the elevator not the machine room.

1 is a cross-sectional view of a building in which an elevator is generally installed,

2 is a block diagram of an elevator control apparatus by serial communication according to an embodiment of the present invention.

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

100: control panel, 120: main control means,

200: platform operation unit, 210: microprocessor,

230: mode setting unit, 240: memory unit,

250: LCD control unit, 270: LCD unit.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a block diagram of an elevator control apparatus by serial communication according to an embodiment of the present invention, as shown in the control panel 100 for controlling the movement of the elevator, the control panel 100 and the serial communication protocol And an elevator panel operation unit (OPB) 200 for performing input / output signal states and error checks of the control panel 100 according to a special key setting, and received from the elevator platform operation unit 200. LCD unit 270 for displaying the corresponding information according to the predetermined data.

Here, the control panel 100 has a main control means 120 including a FPT microprocessor 110, a central processing unit, an input / output unit, a communication connection unit, and a signal opening / closing operation according to the control operation of the main control unit 120. It comprises a relay panel 130 to perform.

In addition, the platform operating unit 200 is a mode setting unit 230 for setting the service floor setting mode and the display setting mode according to a predetermined key operation, and the signal according to the setting mode in the state connected with the communication connection of the control panel 100 A communication connection unit 220 for receiving an input / output signal state and an error state of the control panel 100 according to the key input and an input / output signal state of the control panel 100 received through the communication connection unit 220. And a microprocessor 210 which analyzes an error state and performs a control operation, an EEPROM 240b storing a predetermined program required for the control operation, and a RAM storing data according to the control operation. Reads data stored in the memory unit 240 according to the control operation of the memory unit 240 having the RAM 240a and the microprocessor 210 and displays the data stored in the LCD unit 270 connected by the connector 260. Control actions Performing consists of a LCD controller 250.

Referring to the operation of the elevator control apparatus by serial communication according to an embodiment of the present invention configured as described above are as follows.

First, when the operator operates the mode setting unit 230 of the lifting unit operating unit 200 to set the mode switching to a special key function, the plurality of keys (not shown in the drawing) provided in the lifting unit operation unit 200 are serviced. Switch from floor setting mode to display setting mode. For example, a button function that a passenger operates to go to the fifth floor is changed to a button having a predetermined function set by an operator in the converted display setting mode, and the function is changed to a function button of a service layer which other buttons also have. The function is converted to have a function of.

In the above state, the operator manipulates the corresponding key of the lifting platform operation unit 200 to check the input / output signal state and error check of the control panel 100, for example, the motor drive signal, the running speed of the elevator, When the key is set to check the presence or absence of abnormality of various signals such as position, communication error check, error code search, and the like, the signal according to the operation operation is controlled by the main control unit 100 of the control panel 100 via the communication connection unit 220. The main control unit 120 generates the corresponding data according to the authorized data, and transmits the corresponding data to the microprocessor 210 through the communication connection unit 220. For example, when the main control unit 120 receives a signal confirming the abnormality of the motor drive, the main control unit 120 checks whether the motor is driven or not. It generates data, such as whether there is, and transmits to the microprocessor (210).

Thereafter, the microprocessor 210 transmits / displays the data received from the control panel 100 to the LCD unit 270 connected to the connector 260 according to the control operation of the LCD control unit 250. The explanation is as follows.

First, the LCD controller 250 displays an address for distinguishing an enable signal, a read / write signal and a command or data use to display data received from the control panel 100. Request a signal to the microprocessor 210.

In response to the request, the microprocessor 210 transmits the data received from the control panel 100 to the LCD unit 270, wherein the microprocessor 210 transmits 3 * data according to an address signal and an input / output request signal. The address of the LCD controller 250 is accessed using the 8 decoder.

In addition, after setting the enable signal according to the data output operation, the LCD controller 250 requests an address signal for the microprocessor 210 to distinguish a command signal for performing command output or a signal for data use.

In response to such an address signal request, the microprocessor 210 outputs data received from the control panel 100. At this time, since the output value enabled by the microprocessor 210 has a low level state, the microprocessor 210 has a high level. In order to perform the enable signal in a high active state, the low level value is inverted, and the microprocessor 210 and the LCD unit 270 perform only a write operation on data. Therefore, the read signal for the data of the microprocessor 210 is inverted and connected to the read / write terminal.

In the above state, the microprocessor 210 analyzes the data applied from the control panel 100 and displays the data on the LCD unit 270 through the analysis operation, whereby the operator can control the control panel 100 inside / outside the elevator. I / O signals can be checked.

That is, whenever the output operation is performed in the microprocessor 210, the LCD controller 250 selects the corresponding address and outputs the corresponding address to the LCD unit 270.

According to the above embodiment, using serial communication, the operator can check the input / output signal of the control panel controlling the movement of the elevator inside or outside the elevator and the signal for the error state through the LCD unit, thereby controlling the control panel. There is also.

As described above, the elevator control apparatus according to the present invention according to the present invention is not only possible to check the error through the LCD inside / outside the platform in the elevator system when an error occurs in the elevator system, but also check the bad board of the input / output LED of the control panel This has a possible effect.

Claims (2)

An elevator system comprising a control panel for controlling the movement of an elevator and a lifting platform operating panel installed inside the elevator for applying a predetermined signal to register the elevator destination floor and to control opening and closing of the door. The lifting platform operation panel 200, A mode setting unit 230 for setting a mode change from the service layer setting mode to the display setting mode in order to check the input / output signal state and the error state of the control panel 100; A communication connection unit 220 for performing serial communication according to a predetermined communication protocol with the control panel 100 after setting the display mode according to the key operation of the mode setting unit 230; A microprocessor 210 which checks the input / output signal state and error state of the control panel 100 applied from the communication connection unit 220 and performs calculation and overall control operation; A memory unit 240 for storing a corresponding program for checking the input / output signal state and an error state and data processed by the program; And an LCD controller (250) for controlling the data to perform a display operation after the analysis operation of the microprocessor (210). The method of claim 1, And an LCD unit (270) connected to the lift table operating unit (200) to display the data according to the control operation of the LCD control unit (250).