KR960013296B1 - Elevator guaidance information transmission method & device - Google Patents

Abstract

transmitting data in data format including an interface identifier, a displayer identifier and a message head in case of a transmission mode; reading the interface identifier, the displayer identifier, the message kind, the message length and the received message data in sequence and storing the sum of data in case of a receiving mode; demanding the data re-transmitting to a central control part after clearing the received data if the sum of data is different with the set value; and transmitting a normal receiving completion signal to the central control part after initializing the serial input/output state.

Description

Method and device for transmitting information of elevator

1 is an information guide control block diagram of a general elevator.

2 is a detailed block diagram of the elevator control apparatus in FIG.

Figure 3 is an exemplary block diagram of the information guide control device of the elevator of the present invention.

4 is a detailed block diagram of an interface unit in FIG.

5 is a detailed block diagram of each display unit in FIG.

6A and 6B are exemplary diagrams of a serial data format for exhalation control in the present invention.

7A and 7B are exemplary diagrams of a data format for transmitting guide information in the present invention.

8 is a signal flow diagram for transmitting the guide information of the present invention.

* Explanation of symbols for main parts of the drawings

10: central control unit 20: military management control unit

30A, 30B: Exhalation control crab 32A, 32B: Interface part

33A, 33B: Car display unit 34A, 34B, 35A, 35B: Hall display unit

The present invention relates to a data transmission technology between an elevator car and an elevator platform, an elevator control panel, and a personal computer. In particular, the present invention relates to a display device of an elevator platform including a car display device in addition to data related to elevator operation. An elevator guide information transmission method suitable for serial transmission of message data in real time.

FIG. 1 is a general information control block diagram of an elevator. As shown in the drawing, the group management control apparatus 100, the exhalation control system 200, the pedometer 300, and the exhalation information control system 400 are roughly divided into respective exhalation control systems. The control system for controlling the elevator by the elevator control device 201, the door opening and closing control unit 202, the car-interface terminal device 204 and the hall up / down buttons and the passenger sensor through the input / output transmission path And, it is configured to perform military management control to the military management control device (100).

The exhalation control system 200 forms a network with the pedometer 300 and the exhalation information control system 400 through a network transmission path, and the pedometer 300 is a remote repair apparatus configured as a device for inputting information and diagnosing failure again. And a user command unit 302 for changing the information specification rule driving specification and execution time zone. The exhalation information control system 400 is a control system that performs service floor display, building guidance, event guidance, etc. with a display device (hall information communication device) in a building, similar to other exhalation information control systems, which is an information control unit 303 and a hall information notification unit. 306.

FIG. 2 is a hardware block diagram of the elevator control apparatus included in the exhalation control system 200 of FIG. 1, and as shown in FIG. 2, this is largely an input / output transmission unit 411 for data input / output, and controls a door. A door detector 412, a door open / close signal control unit 413, a door open / close relay driver 419, an operation mode selector 414 for selecting and permitting an operation mode, and a permission command unit 415 for each operation mode. And a general operation control unit 416, a network transmission control unit 418, and transmission, the operation of the conventional system configured as described above is as follows.

The input / output transmission unit 411 performs a hardware input / output operation from the hole side and the cage side through the input / output transmission line L10. The network transmission control unit 418 outputs the exhalation data and the operation information data to the serial transmission unit 420, and the information control unit 302 should display the data on each hall display device independently of the serial transmission unit 420. Output to the device.

The serial transmission unit 420 controls the data transmission of the network transmission path (N10), the operation mode selection unit 414, the permission command unit 415 for each operation mode, the door detection unit for controlling the rational opening and closing of the door ( 412, the door open / close signal control unit 413, the door open / close relay driver 419, the trouble code preparation unit 417, and the like, directly control the operation of the elevator together with the general operation control unit 416.

Such a conventional system is not a big problem to efficiently control an elevator, but is somewhat unreasonable as an information guide display system. It does not have a car information guide control system, and it is actually simple even in the network configuration of each control system, but in terms of software, it shows an extremely complicated transmission data format between each control system and devices, and the information display control in the information control system. Due to the control of each hall information notification device by one device, there is a problem that the burden of information display timing and its own software is increased.

Accordingly, an object of the present invention is to transmit a guide information of an elevator between a display device in a car or a platform using a dot matrix LED or a liquid crystal display device and a control device of an elevator, or a display device and a personal computer. In the data communication between the same external media, a new serial multiple communication method is adopted to facilitate the interface between the devices and to display various information in real time according to the operating state of the elevator. In providing.

In order to achieve the above object, the method of transmitting elevator guide information of the present invention includes a central control unit which is connected to a military management device and monitors and controls the operation of each unit, and an interface belonging to each unit is selected and connected to the situation or building of each unit. In an elevator communication method that communicates information such as guidance, floor guidance, and hourly events, when the transmission / reception mode is determined to be a transmission mode, data is transmitted in a data format including an interface identifier, a display device identifier, and a message head. A first step of processing; A second step of sequentially reading the interface identifier, the display device identifier, the message type, the message length, the received message data and storing the total value of the data when it is determined that the reception mode is the reception mode; A third step of checking a reception completion state to check a received total value, clearing reception data when the total value is different from a preset value, and requesting data retransmission to the central control unit; When it is determined that it is an identifier by checking the data identifier (ID), the interface accepts the received data and checks the total value.If the error does not occur as a result, it initializes the serial I / O state and then normally receives the central control unit. The fourth step is to send a completion signal.

3 is a block diagram illustrating an exemplary embodiment of an information guide device of an elevator to which the guide information transmission method of the present invention is applied. As shown in FIG. 3, the central control unit 10, the group management control device 20, and the air unit Control system 30A, 30B, and the exhalation control system 30A, 30B is again an interface 32A, 32B, one car display 33A, 33B, and a plurality of hall displays. 34A, 35A, 34B, 35B.

In addition, the central control unit 10 is a general-purpose personal computer is interfaced with an external complex switching network through a DEC (for example, a modem), the role of the elevator information guide control system is to edit various information and breath control system according to its software In addition to providing a function of sending information to 30A and 30B, supervisory control of the elevator is performed.

In the exhalation control systems 30A and 30B, the elevator control devices 31A and 31B control the operation of the elevator independently of the system related to the information guide control.

The interface 32A, 32B performs the serial transmission data interface function of each device, and receives data related to the elevator control from the elevator control devices 31A, 31B and receives the data related to the elevator control from the central control unit 10 and the Ka-wa. Relay to each display device in the hall. In addition, the central control unit 10 relays information such as building guides, floor guides, and hourly events, which are collectively edited, to each display device.

The car display units 33A, 33B and the hall display units 34A, 35A, 34B, 35B are LED display devices employing a dot matrix or an LCD or a Saalti. By referring to data (eg, traveling, deceleration, direction) of the operation state of the elevator relayed from the interfaces 32A and 32B, an appropriate display function according to the operation state of the elevator is performed.

The interface unit 32A, 32B inputs and outputs data related to the elevator control from the elevator control devices 31A and 31B through the transmission path IOLA-IOLB through a network configuration between each control system or device. Serial transmission is performed to the serial transmission line IPL10 or the display device serial transmission lines IL10A and IL10B of the central control unit 10, respectively. In addition, the general information edited by the central controller 10 is inputted through the pole duplex serial transmission line of the serial transmission line IPL10 and transmitted to each display device connected to the interface units 32A and 32B. It can be configured. However, FIG. 3 shows a configuration in which Units 1 and 2 of Units 1-8 are examples for convenience of description.

FIG. 4 is a basic block diagram of the interface unit 30A in FIG. 3, which includes a single chip 18 and includes the input and output units 11 and 12 and the central controller 10 as shown in FIG. The identifier setting unit is multiplexed into a data format as shown in FIG. 6 in asynchronous serial communication with the central control unit 10 by setting its identifier (ID) with the dip switch 17. Transmission and reception are performed via the serial communication line IPL10, transmission and reception lines IPL10A, and IPL10B in FIG. In addition, through the serial input and output unit 113 in the single chip 18, the exhalation control system is configured by the car display unit 34A, 35A, 34B, 35B and the car display unit 33A, 33B multiplexed. When described in detail with reference to Figures 5 to 8 attached to the operation and effects of the present invention configured as follows.

The central control unit 10 is qualified as a master to the interface units 32A and 32B of each unit control system, and transmits the data format as shown in FIG. 6A in the transmission / reception process from the interface device corresponding to the slave. And the reception is performed in the format as shown in (b). Hereinafter, the transmission / reception process will be described with reference to FIGS.

First, the central control unit 10, which is a master, sets an interface identifier (ID) of a corresponding control system to perform communication in a data format as shown in FIG. 6A in order to communicate with an interface unit in an exhalation control system. The transmission must be started.

The asynchronous serial communication transmission and reception interrupt processing at the interface units 32A and 32B refers to the reception data format as shown in FIG. 6A, and is performed through a signal processing process as shown in FIG.

Once the data is loaded on the serial transmission line IPL10, all of the interface units 32A and 32B corresponding to the slave are interrupted and a service routine as shown in FIG. 8 is started.

In the first step S1, it is determined whether the serial transmission / reception interrupt is a transmission process or a reception process. In the second step S2, it is determined whether it is a transmission process, and the transmission process is performed.

In the third step S3, it is determined whether the data is currently being received, and if it is being received, the process proceeds to the seventh step S3 to read the received data sequentially from the receiving buffer. However, if it is confirmed in the third step S3 that it is not being received, the process proceeds to the fourth step S4 to check whether or not the reception is completed again. After checking the total, if an error has occurred by checking the total error based on the result, the flow proceeds to step 12 (S12) to clear the data received so far, and proceeds to step 14 (S14) to the central control unit 10. Outputs a retransmission signal to request data again.

If it is confirmed in the fourth step S4 that the reception is not completed, the process proceeds to the fifth step S5 to determine whether the first data supplied from the central control unit 10 is the identifier signal ID of the own station, thereby identifying the own station's identifier. If the signal is found, the process proceeds to the ninth step S9 to set the corresponding bit of the serial input / output register for receiving interrupt processing even when the ninth bit of all serial data received thereafter is 0 (LOW).

Thereafter, all data whose ninth bit transmitted from the central control unit 0 is 0 may be accepted as an interrupt, but interface devices of other control systems do not perform an interrupt service.

After checking that the total error has not occurred in the eleventh step S11, the process proceeds to the thirteenth step S13 to store all the data received in the reception buffer, and the process proceeds to the fifteenth step S15 to receive the data again. In order to make it possible, the serial input / output state is initialized, and then the process proceeds to step 16 of step S16 to transmit a response signal indicating that data has been normally received to the central control unit 10.

FIG. 5 shows the basic hardware configuration of each of the display units 33A-35A and 33B-35B. As shown in FIG. 3, the interface units 32A, 32B and the respective display units 33A-35A, 33B- are shown in FIG. The serial communication lines were connected multiplely between the lines IL10A-IL10B.

For each control system, the interface units 32A, 32B are qualified as masters, and each of the display units 33A-35A, 33B-35B corresponds to a slave. As shown in FIG. 5, the serial communication lines IL10 and IL102 are multiplexed to the interface units 32A and 32B to have their own identifier numbers by the dip switch 17.

The transmission data formats of the interface units 32A, 32B and the respective display units 33A-35A, 33B-35B are as shown in FIG. 7, and the transmission and reception processing is based on this transmission data format. In the same manner as the transmission and reception processing method between the central control unit 10 and the interface units 32A and 32B, the processing is performed as shown in FIG.

As described in detail above, the present invention accommodates the advantages of the existing elevator display system, as well as the structured hardware system, and the advantage of easily realizing the hardware interface between the basic elevator control device and the information display device. In addition, by accommodating the data transmission method of the conventional control system and separating the functions of each control system and the control device in hardware, the efficiency of information display timing can be increased, and the burden on the software of each control system can be reduced, resulting in atomic savings. There is an advantage that can lead to.

Claims (2)

The central control unit that monitors and controls the operation of each unit and the interface unit belonging to each unit is selectively connected to the military management system to communicate the information of each unit's situation, building guide, floor guide, hourly events, etc. A communication method, comprising: a first step of transmitting and processing data in a data format including an interface identifier, a display device identifier, and a message head when determining a transmission mode by checking a transmission / reception mode; A second step of sequentially reading the interface identifier, the display device identifier, the message type, the message length, the received message data and storing the total value of the data when it is determined that the reception mode is the reception mode; A third step of checking a reception completion state to check a received total value, clearing reception data when the total value is different from a preset value, and requesting data retransmission to the central control unit; When it is determined that it is an identifier by checking the data identifier (ID), the interface unit accepts the received data and checks the total value.If the error does not occur as a result, it initializes the serial I / O state and then normally receives the central control unit. The fourth step of transmitting a completion signal to perform the guide information transmission method of the elevator, characterized in that the serial multi-communication. The central control unit 10 edits information such as the status of each elevator, a building guide, and an hourly event, and transmits the information to the exhalation control systems 30A-30N of a plurality of elevators that operate a plurality of floors, and monitors and controls the operation of each elevator. )Wow; In the elevator information guide communication device composed of each exhalation control system (30A-30N) that communicates with the central control unit 10 and independently controls the operation of the elevator and displays the guide information on its car and hall display, Multi-serial transmission to the central control unit 10 using an interface identifier, a display device identifier, a message type, a message length, a data format including a received message data, and a data format including a message type, a message length and a received message data. The general information is transmitted through the line IPL10, and the central control unit 10 receives and processes the driving control and guidance information data transmitted in a data format including an interface identifier, a display device identifier, and a message head. The connected information is multiplexed in a format including a display device identifier and a message head. The data is sent to the display unit of the car and the hole, and the data inputted in the format including the display device identifier, the message head, the message length, and the received message data from the display unit of the car and the hole is sent to the central control unit 10 in the above format. Guide information transmission method for an elevator, characterized in that the interface 32 is configured to include in each of the exhalation control system (30A-30N).