JP2009221000A - Elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve inconvenience in manufacturing caused by the fact that a communication system between the existing display and an elevator control panel is different for each installation destination when the existing display of an elevator is replaced with a new display. <P>SOLUTION: When a series communication cable is connected to an image control device 7, a CPU 19 detects connection by the function of a series communication connection detection circuit 13. The CPU 19 receives series communication data through a series communication transmitting/receiving circuit 12, and allows an image display 6 to display an image according to the received series communication data. When a contact signal cable is connected to the image control device 7, the CPU 19 detects connection by the function of a contact reception detecting circuit 15. The CPU 19 receives contact data through a contact reception circuit 14, and allows the image display 6 to display the image according to the received contact data. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elevator provided with a display device at a landing or a car.

  Conventionally, a display device used in an elevator control device has been mainly used for many years by displaying numbers on acrylic and lighting an LED next to the numbers to notify the user of the elevator car position. This lighting system has been diversified with the progress of semiconductor technology, and a 16-segment LED display device that uses 16-segment LEDs to display numbers and characters, or a predetermined LED by arranging LEDs in a dot matrix. Digital dot matrix type LED display devices that display numbers and characters by turning them on have appeared, and the latter digital dot matrix type LED display devices have become the mainstream in the industry since around the 1990s.

  The structure and functions of these display devices are disclosed in the background art of Patent Document 1, for example. In addition to the display devices that only display letters and numbers as described above, in recent years, with the spread of LCD (Liquid Crystal Display), elevator position display devices that use image display devices have been developed and developed by various companies. It has been put into practical use and is attracting attention as one of the important orders for new elevators.

  While new elevator display devices are becoming more sophisticated year by year, the same trend is expected for existing elevators that have been delivered over a long period of time. Especially, display devices that only display conventional letters and numbers on elevators are expected. By replacing it with an image display device, there is a great expectation of customer demand for the latest design that will be the face of an elevator.

  In particular, existing elevators have become mainstream of microcomputer-controlled elevators since around the 1980s, and while there are no complaints about elevator control itself, there is a demand from customers to change the design of display devices to the latest. There are many.

In addition, the renewal only with the design change has a feature that it can be made equivalent to the latest elevator in appearance by changing the operating elevator to the latest elevator design in a short period of time. Therefore, it is expected that changing the design of the elevator will become a business that can be expected to have much demand in the future.
JP 2007-230692 A

  However, the communication method between the display device of the existing elevator and the main control panel is different from the serial communication method, which is the latest elevator communication method, as described in the background art of Patent Document 1 described above. Since the communication system is provided, there arises a problem that a display device different from the latest elevator, that is, a display device for an existing elevator has to be developed separately.

  For example, when a new display device dedicated to an existing elevator is newly developed, although the increase in demand can be expected, the number of existing elevators is generally far inferior compared to the number of new elevators shipped. .

  Therefore, the manufacturing quantity of the display apparatus for replacement | exchange for an existing elevator must be reduced, and the price of the said display apparatus will become expensive. In addition, there is a concern that the manufacturing lead time becomes long and the latest display device cannot be provided to customers in a timely manner.

  Accordingly, an object of the present invention is to improve the manufacturing inconvenience caused by the fact that the communication method with the elevator control panel differs depending on the installation place when the existing display device is replaced with a new display device. It is to provide an elevator that becomes possible.

  That is, the elevator according to the present invention transmits an image display device for displaying image information, a storage device for storing image information for display on the image display device, and a signal for image display by a serial communication method. A first connection connector for connecting a signal line to be connected, and a second connection connector for connecting a signal line for transmitting a signal for image display by a method different from the serial communication method. When a signal line is connected to one of the connectors and a display instruction signal for image information stored in the storage means is transmitted by a signal line connected as a signal for image display, the display instruction The image information stored in the storage device is read in accordance with the signal, and display processing on the image display device is performed.

  ADVANTAGE OF THE INVENTION According to this invention, when exchanging an existing display apparatus for a new display apparatus, the inconvenience on manufacture resulting from a different communication system with an elevator control panel for every installation place can be improved.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram showing an example of a new elevator system in which an elevator display device according to an embodiment of the present invention is incorporated.
As shown in FIG. 1, the new elevator system according to the embodiment of the present invention is mainly composed of a main control panel 1, a car operation panel 2, and a landing display device 3 on each floor. In the newly installed elevator system shown in FIG. 1, the main control panel 1 includes a main control device 4 and a transmission CPU 5. The main control device 4 has a function of supervising motor control and operation control, which are the center of elevator drive control.

  Although not shown, a hoisting machine that is rotated by an electric motor is installed in the machine room above the hoistway where the elevator car moves up and down, and a car and a counterweight are attached to both ends of the hoisting machine. The main rope is hung. The electric motor is rotationally controlled by a drive circuit using alternating current supplied from an alternating current power source.

  The transmission CPU 5 has a function of transmitting data received from the main control device 4 to the car operation panel 2 and the landing display device 3 through serial communication in order to perform serial communication with the car operation panel 2 and the landing display device 3. And a function of transmitting serial communication data received from the car operation panel 2 or the landing display device 3 to the main control device 4. For the transmission CPU 5, an 8-bit control or 16-bit control built-in microcomputer is generally used.

  The car operation panel 2 includes an image display device 6, an image control device 7, and a call button 8. The image display device 6 is, for example, a liquid crystal panel, and is a display device having a function of displaying image information.

  The call button 8 includes a button switch 10 for the user to specify the destination floor and a button registration lamp 11 for notifying the user that the user stops at the specified destination floor.

  The image control device 7 includes an output control function for displaying image information on the image display device 6, a serial communication function for communicating with the main control panel 1, a function for detecting the operation of the button switch of the call button 8, and A function for turning on / off the button registration lamp of the call button 8 is provided.

  The platform display device 3 includes an image display device 6, an image control device 7 and a call button 8 in the same manner as the car operation panel 2, and the functions thereof are the image display device 6, the image control device 7 and the call button of the car operation panel 2. This is the same as the function 8.

  However, the call button 8 of the landing display device 3 does not designate the destination floor like the call button 8 of the car operation panel 2, but designates either ascending or descending for calling the platform of the car. Is common.

FIG. 2 is a diagram illustrating an example of an existing elevator system in which an elevator display device according to an embodiment of the present invention is incorporated.
As shown in FIG. 2, the existing elevator system according to the embodiment of the present invention is configured with a main control panel 1, a car operation panel 2, and a landing display device 3 as the same as the new elevator system shown in FIG. 1. In the existing elevator system, the main control panel 1 includes a main control device 4 and an input / output circuit 9. The main control device 4 has the same function as that of the newly installed elevator system described in the configuration of FIG. The input / output circuit 9 has a function of converting a direct current (DC) 5V input / output signal of the main control device 4 into a DC 24V signal, and digitizes the input / output signal by contact on / off control.

  Inverter noise or the like generated by driving the motor is generated between the main control panel 1 and the car operation panel 2 and between the main control panel 1 and the landing display device 3, and thus the input / output signal is in a poor environment. In order to prevent malfunction, communication is performed through signal conversion to DC24V.

  The components of the car operation panel 2 are the same as those of the newly installed elevator system shown in FIG. 1. However, in the existing elevator system, the call button 8 does not perform serial communication, and therefore the call button 8 and the input / output circuit 9 of the main control panel 1. And are connected directly.

  The components of the landing display device 3 are the same as those of the new elevator system shown in FIG. 1, but the call button 8 of the existing elevator does not perform serial communication as described above, so the input / output circuit of the call button 8 and the main control panel 1 9 is directly connected.

Next, an elevator display device according to an embodiment of the present invention will be described. FIG. 3 is a block diagram illustrating a configuration example of the elevator display device according to the embodiment of the present invention.
The display device shown in FIG. 3 can be used as a new or replacement display device in a new elevator, and can also be used as a replacement display device in an existing elevator.

As shown in FIG. 3, the display device includes an image display device 6, an image control device 7, and a call button 8. The call button 8 includes a button switch 10 and a button registration lamp 11.
In this embodiment, the description is made on the assumption that the display device is applied to the newly installed elevator system shown in FIG. 1, but in the case of the display device applied to the existing elevator system shown in FIG. Removed from component.

  That is, when the image display device 6 and the image control device 7 shown in FIG. 3 are installed in the new elevator shown in FIG. 1, the button switch 10 of the call button 8 and the button registration lamp 11 are connected to the image control device 7. Is done. On the other hand, when the image display device 6 and the image control device 7 shown in FIG. 3 are installed in the existing elevator shown in FIG. 2, the button switch 10 and the button registration lamp 11 of the call button 8 are not the image control device 7. Then, it is directly connected to the input / output circuit 9 of the main control panel 1.

  The image control device 7 includes a serial communication transmission / reception circuit 12, a serial communication connection detection circuit 13, a contact reception circuit 14, a contact reception detection circuit 15, an image data first storage memory 16, an image data second storage memory 17, and an image display device drive. A circuit 18 and a CPU 19 are provided, and each element other than the CPU 19 is connected to the CPU 19.

  The serial communication transmission / reception circuit 12 is a circuit for performing communication with the transmission CPU 5 of the main control panel 1 when the image display device 6 and the image control device 7 are installed in the newly installed elevator system shown in FIG. An interface function of RS-422 communication and RS-485 communication suitable for long-distance transmission is provided.

  The serial communication connection detection circuit 13 changes the state of the input signal to the CPU 19 depending on whether the external wiring, that is, the signal line from the main control panel 1 of the newly installed elevator is connected to the serial communication transmission / reception circuit 12 or not. It has a function to make it.

  The contact receiving circuit 14 is a circuit for communicating with the input / output circuit 9 of the main control panel 1 when the image display device 6 and the image control device 7 are installed in the elevator system shown in FIG. This signal is made to function as a digital signal by ON / OFF control of the signal at the contact.

  The contact reception detection circuit 15 has a function of changing the state of an input signal to the CPU 19 depending on whether external wiring, that is, a signal line from the main control panel 1 of the existing elevator is connected to the contact reception circuit 14 or not. Is provided.

  The image data first storage memory 16 is a storage device that can be attached to and detached from the image control device 7, and among the image data to be displayed on the image display device 6, there is a high change factor such as display of content desired for each customer. A large-capacity 128 MB to 1 GB memory such as a non-volatile portable flash memory card is used for storing image data.

The image data second storage memory 17 is a storage device that cannot be attached to and detached from the image control device 7. Among the image data displayed on the image display device 6, factors such as elevator floors and up / down symbols are changed depending on customers. Is used for storing image data with a small amount of data or for storing images that can be displayed as a standard, and a non-volatile memory of 32 MB to 128 MB, which is smaller than the first image data storage memory 16, is used. .
The image display device drive circuit 18 has an interface function with the image display device 6 and a function of driving a current sufficient to drive the display element of the image display device 6.

  The CPU 19 is a central component of the image control device 7, and from the image data first storage memory 16 or the image data second storage memory 17 based on the image display code received from the serial communication transmitting / receiving circuit 12 or the contact receiving circuit 14. A function of reading predetermined image data and outputting it as a display signal to the image display device drive circuit 18 and a data communication function between the transmission CPU 5 and the call button 8 in the new elevator system shown in FIG.

  Further, in the newly installed elevator system shown in FIG. 1, when the code of the image data itself is transmitted from the transmission CPU 5 to the CPU 19, the CPU 19 reads the data indicated by the code from the transmission CPU 5 without reading from the various image data storage memories. A function of directly outputting to the image display device drive circuit 18 is provided.

Next, the serial communication connection detection circuit 13 will be described. FIG. 4 is a diagram illustrating a configuration example of a serial communication connection detection circuit of the elevator image control apparatus according to the embodiment of the present invention.
As shown in FIG. 4, a serial communication connector 20 is attached to the end of the serial communication cable from the main control panel 1 of the newly installed elevator system, and one end and the other end of the connector connection identification wire 21 are attached to the serial communication connector 20. It is done.

  Further, a first connection connector 23 for connecting the serial communication connector 20 is provided as an element of the serial communication connection detection circuit 13 on the image control device 7 side. The first connection connector 23 is provided with a COM terminal which is a terminal at a low potential point. The first connection connector 23 is connected to the serial communication transmission / reception circuit 12.

  The serial communication connection detection circuit 13 includes a resistor 22 as an element of the detection circuit. One end of the resistor 22 is connected to a VCC terminal which is a terminal at a high potential point, and the other end is connected to the CPU 19 and the first connection connector 23.

  When the serial communication connector 20 is not connected to the first connection connector 23 of the image control device 7, the serial communication cable is not connected to the serial communication transmission / reception circuit 12, and the other end of the resistor 22 is connected to the COM of the first connection connector 23. It is not connected to the terminal or the connector connection identifying electric wire 21.

On the other hand, in a state where the serial communication connector 20 is connected to the first connection connector 23 of the image control device 7, the serial communication cable and the serial communication transmission / reception circuit 12 are connected, and the other end of the resistor 22 is connected via the first connection connector 23. The connector connection identification electric wire 21 is connected to one end, and the other end of the connector connection identification electric wire 21 is connected to the COM terminal of the first connection connector 23.
In this case, the other end of the resistor 22 is connected to the COM terminal of the first connection connector 23 via the first connection connector 23, the serial communication connector 20, and the connector connection identification electric wire 21.

  That is, when the serial communication connector 20 of the serial communication cable is connected to the first connection connector 23 of the image control device 7, a signal shorted to the COM terminal is input to the CPU 19. When the serial communication connector 20 is not connected to the first connection connector 23 of the image control device 7, a signal having a potential close to VCC is input to the CPU 19 because the resistor 22 is connected to the VCC terminal.

  As described above, since the CPU 19 can detect the on / off state of the signal based on the presence / absence of the connection of the serial communication connector 20 to the first connection connector 23, it can confirm whether the serial communication cable is connected.

Next, the contact reception detection circuit 15 will be described. FIG. 5 is a configuration diagram of a contact reception detection circuit of the elevator image control apparatus according to the embodiment of the present invention.
As shown in FIG. 5, a contact connection connector 24 is attached to the tip of the contact signal cable from the main control panel 1 of the existing elevator system, and one end and the other end of the connector connection identification electric wire 25 are attached to the contact connection connector 24. Is attached.

  Further, on the image control device 7 side, a second connection connector 26 for connecting the contact connection connector 24 is provided as an element of the contact reception detection circuit 15 separately from the first connection connector 23. The second connection connector 26 is provided with a COM terminal which is a terminal at a low potential point. The second connection connector 26 is connected to the contact receiving circuit 14.

  The contact reception detection circuit 15 includes a resistor 27 as an element of the detection circuit. One end of the resistor 27 is connected to a VCC terminal which is a terminal at a high potential point, and the other end is connected to the CPU 19 and the second connection connector 26.

  In a state where the contact connection connector 24 is not connected to the second connection connector 26 of the image control device 7, the contact signal cable is not connected to the contact receiving circuit 14, and the other end of the resistor 27 is COM of the second connection connector 26. It is not connected to the terminal or the connector connection identifying electric wire 25.

On the other hand, in a state where the contact connection connector 24 is connected to the second connection connector 26 of the image control device 7, the contact signal cable and the contact receiving circuit 14 are connected, and the other end of the resistor 27 is connected to the second connection connector 26. And the other end of the connector connection identification electric wire 25 is connected to the COM terminal of the second connection connector 26.
In this case, the other end of the resistor 27 is connected to the COM terminal of the second connection connector 26 via the second connection connector 26, the contact connection connector 24 and the connector connection identification electric wire 25.

  That is, when the contact connection connector 24 of the contact signal cable is connected to the second connection connector 26 of the image control device 7, a signal short-circuited to the COM terminal is input to the CPU 19. When the contact connection connector 24 is not connected to the second connection connector 26 of the image control device 7, the resistor 27 is connected to the VCC terminal, so that a signal having a potential close to VCC is input to the CPU 19.

  As described above, the CPU 19 can detect the on / off state of the signal based on whether or not the contact connection connector 24 is connected to the second connection connector 26, so that the presence or absence of connection of the contact signal cable can be confirmed.

  Note that the shape of the first connection connector 23 and the shape of the second connection connector 26 are different from each other. The contact connection connector 24 of the contact signal cable is connected to the first connection connector 23, or the second connection connector 26 is connected in series. The serial communication connector 20 of the communication cable cannot be connected.

Next, the operation of the elevator image control apparatus having the configuration shown in FIG. 3 will be described. FIG. 6 is a flowchart showing an example of the processing operation of the elevator image control apparatus according to the embodiment of the present invention.
First, when the image control device 7 is turned on (step S1), the CPU 19 performs an initialization process (step S2) and confirms whether or not the connection detection by the serial communication connection detection circuit 13 is detected (step S2). Step S3).

  Here, when the serial communication connector 20 of the serial communication cable is connected to the first connection connector 23 of the image control device 7, the CPU 19 detects the connection by the function of the serial communication connection detection circuit 13 (step S3). YES)

  In this case, the CPU 19 receives the serial communication data via the serial communication connector 20, the first connection connector 23, and the serial communication transmission / reception circuit 12 (step S4), and the received serial communication data is a code indicating the image data itself. It is determined whether or not there is (step S5).

  If the received serial communication data is not a code of image data (NO in step S5), the CPU 19 determines predetermined image data from the image data first storage memory 16 or the image data second storage memory 17 based on the received data. Is output to the image display device drive circuit 18 to display an image on the image display device 6 (step S7).

  When the received serial communication data is a code of image data (YES in step S5), the CPU 19 directly receives the received data from the main control panel 1 by directly outputting the received data to the image display device drive circuit 18. Image display using data is performed (step S7).

  Next, the CPU 19 detects the operation state of the button switch 10 of the call button 8 (step S8), and sends the detected data to the main control panel 1 via the serial communication transmission / reception circuit 12, the serial communication connector 20, and the serial communication cable. Send. Further, the CPU 19 receives a lighting control signal or a light-off control signal of the call button registration lamp 11 from the main control panel 1 via the serial communication connector 20 of the serial communication cable and the serial communication transmission / reception circuit 12, and the call button registration lamp 11. Is turned on / off (step S9).

  On the other hand, when the serial communication connector 20 of the serial communication cable is not connected to the first connection connector 23 of the image control device 7, the CPU 19 cannot detect the connection by the function of the serial communication connection detection circuit 13 ( NO in step S3).

  In this case, the CPU 19 confirms whether or not the connection reception detection circuit 15 has detected the connection (step S10). In the present embodiment, the CPU 19 confirms whether or not there is a connection detected by the contact reception detection circuit 15 after confirming whether or not there is a connection detected by the function of the serial communication connection detection circuit 13. However, because the number of newly installed elevators using the serial communication system is larger than the number of existing elevators, the cable connected to the image control device 7 is likely to be a serial communication cable. This is because the processing load on the CPU 19 is reduced.

  If the contact connection connector 24 of the contact signal cable is not connected to the second connection connector 26 of the image control device 7, the CPU 19 cannot detect the connection by the contact reception detection circuit 15 (NO in step S10). ).

  That is, since no serial communication cable or contact signal cable is connected to the image control device 7 and no signal from the outside is connected, the CPU 19 confirms the detection of the serial communication connection again (step). S10 → S3).

  When the contact connection connector 24 of the contact signal cable is connected to the second connection connector 26 of the image control device 7, the CPU 19 detects the connection by the function of the contact reception detection circuit 15 (in step S10). YES)

  In this case, the CPU 19 receives the contact data via the contact connection connector 24, the second connection connector 26, and the contact receiving circuit 14 (step S11), and based on the received contact data, the image data first storage memory 16 or Predetermined image data is read from the image data second storage memory 17 (step S12) and output to the image display device drive circuit 18 (step S13).

  When the CPU 19 outputs the display image data, the CPU 19 returns to the contact data reception routine (step S13 → S11), and repeatedly outputs the display data.

  Further, after the CPU 19 detects the connection by the function of the serial communication connection detection circuit 13, even if the contact connection connector 24 of the contact signal cable is connected to the second connection connector 26 of the image control device 7, No detection is performed. Further, after the CPU 19 detects the connection by the function of the contact reception detection circuit 15, even when the serial communication connector 20 of the serial communication cable is connected to the first connection connector 23 of the image control device 7, the connection is detected. Don't do it.

  As described above, in the elevator according to the embodiment of the present invention, the image control device 7 includes both the connector for connecting the serial communication cable and the connector for connecting the contact connection cable, and the main control panel via the connector to which the cable is connected. 1 is exchanged with the main control panel 1 regardless of whether the elevator to be replaced is a new elevator using the serial communication method or an existing contact point type elevator when the display device is replaced. Communication of signals for image display can be performed.

  Therefore, it is not necessary to separately manufacture the replacement display device for the new elevator using the serial communication method and the existing elevator using the contact method, and can be shared. Therefore, it is possible to realize an image display device that can not only greatly reduce the cost of the replacement display device but also can quickly cope with the modification of the existing elevator. That is, when replacing an existing display device with a new display device, it is possible to improve manufacturing inconvenience caused by a difference in communication method with the main control panel 1 for each installation destination.

  The present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be omitted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

The figure which shows an example of the newly installed elevator system in which the display apparatus of the elevator in embodiment of this invention was integrated. The figure which shows an example of the existing elevator system in which the display apparatus of the elevator in embodiment of this invention was integrated. The block diagram which shows the structural example of the display apparatus of the elevator in embodiment of this invention. The figure which shows the structural example of the serial communication connection detection circuit of the image control apparatus of the elevator in embodiment of this invention. The block diagram of the contact reception detection circuit of the image control apparatus of the elevator in embodiment of this invention. The flowchart which shows an example of the processing operation of the image control apparatus of the elevator in embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Main control board, 2 ... Car operation panel, 3 ... Platform display apparatus, 4 ... Main control apparatus, 5 ... Transmission CPU, 6 ... Image display apparatus, 7 ... Image control apparatus, 8 ... Call button, 9 ... Input / output Circuit 10, button switch 11, button registration lamp 12 serial communication transmission / reception circuit 13 serial communication connection detection circuit 14 contact reception circuit 15 contact reception detection circuit 16 image data first storage memory DESCRIPTION OF SYMBOLS 17 ... Image data 2nd storage memory, 18 ... Image display apparatus drive circuit, 19 ... CPU, 20 ... Serial communication connector, 21, 25 ... Connector connection identification electric wire, 22, 27 ... Resistance, 23 ... First connection connector, 24 ... Contact connection connector, 26 ... Second connection connector.

Claims (5)

An image display device for displaying image information;
A storage device for storing image information to be displayed on the image display device;
A first connector for connecting a signal line for transmitting a signal for image display by a serial communication method;
A second connection connector for connecting a signal line for transmitting a signal for image display by a method different from the serial communication method;
Detecting means for detecting whether a signal line is connected to any one of the first and second connection connectors;
When the detection means detects that the signal line is connected to one of the first and second connection connectors, an image information display instruction signal stored in the storage means Display control means for reading image information stored in the storage device in accordance with the display instruction signal and performing display processing on the image display device when transmitted through the connected signal line as a signal for An elevator characterized by comprising. The detection means includes
If it is first detected whether or not a signal line is connected to the first connection connector, and if it is not possible to detect that a signal line is connected to the first connection connector, the second connection connector The elevator according to claim 1, wherein it is detected whether or not a signal line is connected to the elevator. The display control means includes
When the detection means detects that a signal line is connected to the first connection connector, and the image information is transmitted as a signal for the image display by the connected signal line, the image The elevator according to claim 1, wherein display processing of information on the image display device is performed. The elevator according to claim 1, wherein the storage device includes a first storage device that can be removed and a second storage device that cannot be removed. Connection means for connecting a signal line of a call button for performing signal transmission by the serial communication method;
When the detection unit detects that a signal line is connected to the first connection connector and the call button connected by the connection unit is operated, a signal indicating the operation state is sent to the elevator control panel. A transmission means for transmitting to
When the detection means detects that a signal line is connected to the first connection connector, and when an on / off control signal to the call button connected by the connection means is transmitted from the elevator control panel The elevator according to claim 1, further comprising a lighting / extinguishing control means for performing lighting / extinguishing control of the call button.

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