JPH1095578A - Elevator control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform transmission and reception between a control device in a car and other control devices in the system in a condition where a plurality of input/output control devices different in transmission speed from each other are arranged in a mixed manner in one transmission passage. SOLUTION: An elevator control system is provided with a car control device CP1 to control the traveling of a car, transmission control devices AC1, AC2 to control the condition of transmission in the car control device to an input/ output control devices, a plurality of input/output control devices HT1-HT8, CT1, CT2 with different transmission speed which are installed at least at a landing part of a plurality of floors to which the car is served, control the input/output between the transmission control device and the equipment for operation and guide, and common paths L1, L2 which are connected between the transmission control device and the input/output control device to transmit various kinds of data. The transmission control device has the transmission specification table which is selected in the prescribed period and determines the condition of transmission to each input/output control device, and controls the transmission according to the table.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator control system, and more particularly to facilitating transmission processing of each input / output control device having a different transmission speed from a device control device.

[0002]

2. Description of the Related Art With the increase in service display contents of elevators and the display at higher speeds, generally, as represented by Japanese Patent Application Laid-Open No. 1-15989, a control device of a machine room for elevators, a floor of each floor and a car. Serial transmission is adopted for data input / output with an input / output control device provided therein.

However, as the amount of data transmission increases, the time required for transmission increases, and the data transmission cycle also increases accordingly. For example, in the case of a car position indicator of the conventional flash system, a 16-floor building requires only 2 bytes of data transmission (a 1-floor ramp may be 1-bit data. Only a bit (2 bytes) is needed.) However, in the digital type, there is a dot matrix type car position indicator and the like. In the case of a four-digit car position indicator, if one digit is 64 dots,
It increases to 64 × 4 = 256 bits (32 bytes). For this reason, as the transmission amount increases, the transmission cycle naturally becomes longer. As a result, there is a possibility that the transmission cycle of the car position display data becomes longer than the cycle in which the actual car position changes due to the speeding-up of the elevator. In this case, when the car travels at a high speed, the display floor may be skipped, or the running actual floor and the display floor may be different.
In order to solve these problems, Japanese Patent Application Laid-Open No. 03-267
According to Japanese Patent Application Laid-Open No. 280/280 and the like, it is intended to cope without increasing the transmission speed.
As disclosed in Japanese Patent Laid-Open Publication No. 2 (1993) -212, a message relating to a transmission speed is transmitted from a transmission host to a transmission terminal in advance in accordance with a transmission terminal connected thereto, and only a terminal responding to this is selected for transmission / reception.

[0004]

However, in the above-mentioned prior art, Japanese Patent Application Laid-Open No. 03-267280, when the transmission cycle becomes longer than the update cycle of the actual floor due to the traveling of the car, the car or the hall is not opened. The display at the input / output terminal side is different from the actual floor as the display during high-speed running. To display the actual floor, it is only necessary to increase the transmission speed and shorten the transmission cycle.However, if the transmission speed of the common transmission line is simply increased, the conventional I / O control terminal for low-speed transmission will be used. Incompatibility with the transmission speed is lost. However, at present, for example, there are many cases where a flash-type car position indicator is mounted on the first floor and the second floor where there are many customers in the car, and a dot matrix display which is small and can use a standard product is used on other floors. For this reason, Japanese Patent Laid-Open No. 1-14
In Japanese Patent No. 5989 and the like, a transmission circuit and a program are added for each transmission speed, and an input / output control terminal is connected according to the transmission speed. There are problems such as an increase in cost due to the addition of hardware. In particular, the production and construction of a common bus transmission cable according to each floor pitch requires a great deal of cost. In Japanese Patent Application Laid-Open No. 60-80342, when transmission is performed with a low-speed transmission terminal, message transmission is performed from a transmission host in advance to perform low-speed transmission. The low-speed transmission terminal responds, but the high-speed transmission terminal does not. As a result, the transmission host selects and transmits only the responding terminal, that is, the low-speed transmission terminal. When transmitting with a high-speed transmission terminal, message transmission is performed in advance to perform high-speed transmission, and thereafter, transmission and reception are performed only with a terminal that has responded in the same manner as when transmitting and receiving with a low-speed transmission terminal. However, in this prior art, message transmission is required in advance every time the transmission speed is switched, which wastes transmission time and increases transmission processing, which is disadvantageous in terms of the load on the CPU.

Accordingly, in the present invention, in order to solve the above-mentioned problems, an input / output control terminal having a different transmission speed is connected to a common transmission line, and an input / output control device on the transmission host side and an input / output device serving as a slave station are connected. When transmitting / receiving data to / from a control terminal, the above-mentioned problem is solved by the device control device switching the transmission speed to the input / output control device as the transmission partner in accordance with the transmission speed.

[0006]

The present invention employs the following means in order to solve the above-mentioned problems.

A car control device for controlling the traveling of a car, a transmission control device provided in the car control device for controlling a transmission state with an input / output control device, and a plurality of floor entry / exit portions for at least servicing the car Each is installed in the, and controls the input and output of the transmission control device and each device for operation and guidance, a plurality of input and output control devices having different transmission speeds, between the transmission control device and each of the input and output control devices In the elevator control system including a common bus connected to transmit various data, the transmission control device has a transmission specification table that is selected within a predetermined cycle and determines a transmission state for each of the input / output control devices. Transmission control is performed according to a specification table.

Further, a car control device for controlling the traveling of the car, a transmission control device provided in the car control device for controlling a transmission state with the input / output control device, and a service for the car and at least the car A plurality of input / output control units installed at a plurality of floor entrances to control input / output between the transmission control device and each of the operation and guidance devices, and having a plurality of input / output control devices having different transmission speeds; In an elevator control system comprising a common bus connected between output control devices and transmitting various data, the transmission control device is selected within a predetermined period and includes a transmission specification table for determining a transmission state for each of the input / output control devices. Transmission control according to the transmission specification table.

Further, the transmission specification table is constituted by a list of at least different transmission speeds corresponding to the respective input / output control devices having different transmission speeds.

Further, any one of the input / output control devices has a function of transmitting at a plurality of different transmission speeds and a function of selecting and setting one of the different transmission speeds. It is characterized by the following.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a block diagram showing the overall configuration of an elevator control system according to this embodiment. Here, an example of the fourth floor service is shown.

In FIG. 1, CP1 is a machine control device installed in the machine room, and M1 is a microcomputer (hereinafter, microcomputer) incorporated in the machine control device and performing processing related to elevator control. The transmission circuits AC1 and AC2 for serial transmission driven by the microcomputer include a bus-type transmission line L.
1 are connected to the car input / output control terminals CT1 and CT2 installed in the car C1 and to the hall input / output control terminals HT1 to HT8 via the bus-type transmission circuit L2. The one-chip microcomputers HM1 to HM8 recognize the terminal type and station number of the own station from the depth switches HD1 to HD8, and determine the subsequent driving mode.

Here, the input / output control terminals HT1, HT3, HT5, HT7 for the hall set in the hall terminal use the conventional ones (because the transmission amount is relatively small), so that the transmission speed remains the same. (62.5 Kbps). When the hall buttons HB1 to HB3 are driven, data different from floor to floor, such as hall call data and answering lamp data, is transmitted. Input / output control terminals HT2, CT set as conventional flash type indicator terminals
1 also has a transmission speed of 62.5 Kbps (the transmission amount is 4
If it is a floor, only 2 bytes are needed, so the existing input / output control terminal can be used.) As a result, the flash position (lamp type) car position indicator HI1 is driven, and transmission processing of indicator display data is performed.

The input / output control terminals HT4, HT6, and HT8 set as digital indicator terminals use a new type of input / output control terminal whose transmission speed is doubled (125 Kbps) because of a large data transmission amount. Thus, the dot matrix type car position indicators HI2, HI3, HI
4 to perform transmission processing.

The input / output control terminals CT1 and CT2 in the car connected to the bus-type transmission line L1 are connected to the one-chip microcomputer C
Driven by M1 and CM2. These one-chip microcomputers CM1 and CM2 are DIP switches CD1 and CD
2, the type of the terminal of the own station and the station number are recognized, and the subsequent driving mode is determined.

The car input / output control terminal CT2 set as the digital type indicator terminal has a relatively large transmission amount, like the dot-matrix type indicator driving terminal installed in the hall, so that the transmission speed is doubled (125 bps). Use the new I / O control terminal. In this way, the car position indicator CI1 of the dot matrix system is driven to perform the transmission process. Input / output control terminal CT installed in the car terminal
1 uses the conventional one, so the transmission speed remains the same
(62.5 bps), and drives the operation panel CB1 installed in the car to perform transmission processing.

Next, a control processing procedure in the unit control device will be described with reference to a flowchart shown in FIG.

First, in step S1000, initial processing such as clearing of a data table is performed. Next, step S
In 2000, various input / output processing is performed in addition to the transmission processing with the car and the hall. Next, in step S3000, during group management, a group management control panel performs transmission processing with another unit when two units are arranged side by side. Next, in step S4000, an operation mode is selected from various data obtained in the previous step (eg, maintenance operation mode, automatic operation mode, etc.). Next, in step S5000, the operation in the selected operation mode is started, and the driving of the car is controlled.

Further, the transmission processing with the car and the hall in the step S1000 will be described with reference to FIGS.
This will be described in detail with reference to FIG.

FIG. 3A shows input / output control terminals HT1 to HT8, CT1, and CT2 connected to the unit control device CP1.
It is a table showing the specification of a transmission-permitted terminal for each transmission, and this transmission-permitted terminal specification has 32 blocks individually set from transmission 1 to transmission 32. FIG. 3B is a table showing the detailed specifications of the transmission and reception, and shows the specific contents of the specification of the transmission-permitted terminal. For example, it is determined whether to perform high-speed transmission or to select a transmission path. .

FIG. 4 is a flow chart showing the procedure of transmission processing between a car and a hall.
３3 ms). First, step S1010
According to the specification of the terminal permitted to transmit, the detailed specification of the transmission / reception is referred to according to the specification of the terminal permitted to transmit. If the detailed transmission / reception specification permits high-speed transmission, the transmission speed is set to high in step S1020. If high-speed transmission is not permitted, the transmission speed is set to low in step S1030. In step S1040, transmission / reception processing is performed based on the detailed transmission / reception specifications.

As described above, according to the present embodiment,
If the transmission speed for each transmission partner terminal is stored in advance in the number control device in the transmission specification table, and the transmission speed is varied for each transmission partner terminal from the number control device according to the table, the transmission speed is connected to the common transmission line. Transmission with multiple transmission partner terminals with different transmission speeds becomes possible, enabling transmission in a mixed state of an old I / O control terminal with a lower transmission speed and a newly developed I / O control terminal with a higher transmission speed. Become.

When it is desired to connect a newly developed high-speed transmission terminal to a transmission line to which only an old-type low-speed transmission terminal is connected due to modification or the like, the transmission speed specification for each partner terminal on the unit control device side must be set. Connection is possible simply by setting the speed to high. From these, it is possible to easily connect an input / output control terminal with a large transmission volume and provide an elevator control system with sufficient service information, and it is not necessary to prepare a dedicated transmission line for each transmission speed, and the design time and cost Can be reduced.

Next, an input / output control terminal used for maintenance will be described.

As already described with reference to FIG. 1, the elevator control system according to the present embodiment includes an input / output control terminal having a low transmission speed and an input / output control terminal having a high transmission speed. Therefore, it is not economical to prepare two types of I / O control terminals having high and low transmission speeds as maintenance parts. In this embodiment, as the I / O control terminal for maintenance, either a conventional product or a newly developed product is used. A device that can switch the transmission speed of the input / output control terminal is prepared so that it can be used as a maintenance part of the system.

The processing procedure when the maintenance car input / output control terminal capable of switching the transmission speed is used will be described with reference to the flowchart shown in FIG.

In FIG. 5A, step S6000
Then, initial processing such as data table clear is performed.
Next, in step S6010, the DIP switch connected to the own station is read. Next, in step S6020, it is determined from the read value of the dip switch whether the own station is a car input / output control terminal or a hall input / output control terminal. If it is determined that the terminal is for a car, the own station is initialized as a car input / output control terminal in step S6030. Next, in step S6050, if the transmission speed initially set in step S6030 is low, the transmission speed is set to low in step S6080. If not, the transmission speed is set to high in step S6070. If the transmission speed is neither low nor high, the process returns to step S6010. If the transmission rate is determined to be low or high, step S6130
Performs data input / output processing.

If a reception interrupt from the unit control device has occurred, the process proceeds to step S7000 in FIG.
To copy the received data to the receive buffer. Next, in step S7010, the data set in the reply table is transmitted. This completes the reception interrupt processing. In FIG. 5A, in step S6130, a process of copying the data in the reception buffer to the control table, a process of creating a reply table using the signal input from the call button or the like as the reply data, and copying the reply table to the reply table are performed. . In step S6140, lighting of the car position indicating lamp, lighting of the response light, sounding of the buzzer, and the like are performed based on the data in the control table.

As described above, the input / output control terminal for maintenance only needs to prepare one type of input / output control terminal capable of switching the transmission speed, so that the number of parts can be reduced and it is economical.

[0031]

As described above, according to the present invention,
Since the transmission speed can be switched for each I / O control terminal, transmission can be performed in a state where I / O control terminals with different transmission speeds coexist, and the transmission speed is reduced when transmitting with an I / O control terminal with a large amount of transmission data. The transmission time can be shortened by increasing the speed.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an overall configuration of an elevator control system according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating a control processing procedure of the machine control device of the present embodiment.

FIG. 3 is a table showing transmission-permitted terminal specifications of each input / output control terminal of the present embodiment and detailed transmission / reception specifications indicating the contents of the transmission-permitted terminal specifications.

FIG. 4 is a flowchart illustrating a transmission processing procedure of the machine control device of the present embodiment.

FIG. 5 is a flowchart showing a processing procedure in the maintenance input / output control terminal of the embodiment.

[Explanation of symbols]

CP1 unit control unit M1 unit control unit microcomputer AC1, AC2 Series transmission circuit L1, L2 Series transmission line HT1 to HT8 Hall input / output control terminal HM1 to HM8 Hall input / output control terminal microcomputer HD1 to HD8 Hall terminal Station number setting dip switch HB1 to HB4 Hall call button and response light HI1 Flash type car position indicator HI2 to HI4 Dot matrix type car position indicator C1 Ride car CT1, CT2 Car I / O control terminal CM1, CM2 Car I / O Microcomputer for control terminal CD1, CD2 Dip switch for car terminal number setting CB1 Operation panel installed in car CI1 Dot matrix type car position indicator

Claims (4)

[Claims] 1. A car control device for controlling traveling of a car, a transmission control device provided in the car control device for controlling a transmission state with an input / output control device, and a plurality of floors for at least servicing the car A plurality of input / output control devices that are respectively installed at the entrance and exit and control input / output between the transmission control device and the operation and guidance devices, and have different transmission speeds; and the transmission control device and the input / output control devices. An elevator control system including a common bus connected between the transmission control devices and transmitting various data, wherein the transmission control device has a transmission specification table that is selected within a predetermined period and determines a transmission state for each of the input / output control devices, An elevator control system, wherein transmission control is performed according to the transmission specification table. 2. A car control device for controlling traveling of a car, a transmission control device provided in the car control device for controlling a transmission state with an input / output control device, and a car and at least a car are provided. A plurality of input / output control devices installed at the entrances and exits of a plurality of floors to control input / output between the transmission control device and each device for operation and guidance; and a plurality of input / output control devices having different transmission speeds; An elevator control system comprising a common bus connected between output control devices and transmitting various data, wherein the transmission control device is selected within a predetermined cycle and has a transmission specification table for determining a transmission state for each of the input / output control devices. And an elevator control system for controlling transmission according to the transmission specification table. 3. The method according to claim 1, wherein
The elevator control system according to claim 1, wherein the transmission specification table includes at least a list of different transmission speeds corresponding to the input / output control devices having different transmission speeds. 4. The method according to claim 1, wherein
In any one of the claims, any one of the input / output control devices has a function of transmitting at a plurality of different transmission speeds, and a function of selecting and setting any of the different transmission speeds. An elevator control system characterized in that: