JP2005082291A - Elevator control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator control device enabling high-speed rewriting processing or high-speed communication processing of a controlling program. <P>SOLUTION: On an elevator control substrate 1, a starting program memory portion 13 storing a starting program having a rewriting function of a controlling program and a high-speed communication processing function with the outside, a controlling program memory portion 14 storing a controlling program for operating an elevator, and a controlling means (CPU2) executing processing on the basis of these programs stored in the memory portions are provided. The controlling means executes the rewriting processing of the controlling program or the high-speed communication processing by switching to execution of the starting program on the basis of the determination whether the service of the elevator is suspended or not, when a controlling program rewriting request or a high-speed communication processing request is made from the outside at the time of execution of the controlling program processing. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an elevator control device for performing high-speed rewriting processing of a control program for elevator operation.

  Conventionally, as a control device for rewriting an elevator control program, a first control program storage unit comprising a flash ROM for storing a first control program as a basic program for elevator operation on an elevator control board, and a new basic program A second control program storage unit made up of a flash ROM for storing the second control program, a CPU as a control means for executing these control programs, an address conversion circuit as a switching means for switching data read by the CPU, There is one that is connected to an external device and includes an interface for controlling the switching means and writing a new control program in the second control program storage unit (see, for example, Patent Document 1).

JP 2000-128447 A (FIG. 4)

  However, in the above-described conventional device, since the data read by the CPU is switched based on the address, it is necessary to prepare addresses for the CPU and the external device separately when rewriting a new control program. At the same time, the size of the device becomes large and the external device becomes complicated, and there is a problem that high-speed rewriting processing and high-speed communication processing with the outside are difficult.

  The present invention has been made in view of the above points, and provides an elevator control device capable of performing high-speed rewrite processing and high-speed communication processing of a control program.

  An elevator control apparatus according to the present invention stores an activation program storage unit for storing an activation program having a control program rewriting function and an external high-speed communication processing function on an elevator control board, and an elevator operation control program. A control program storage unit, and a control unit that executes processing based on the program stored in the storage unit, wherein the control unit externally executes a control program rewrite request or a high-speed communication process when the control program is executed When there is a request, the control program is rewritten or the high-speed communication process is executed by switching to the execution of the activation program based on whether or not the elevator service can be stopped.

  According to the present invention, when there is a control program rewrite request or a high-speed communication processing request from the outside during the execution of the control program, the control program is switched to the execution of the startup program based on whether or not the elevator service can be stopped. Rewriting processing or high-speed communication processing can be executed.

  FIG. 1 is a block diagram showing a schematic configuration of an elevator control device according to an embodiment of the present invention. The elevator control apparatus shown in FIG. 1 has, on an elevator control board 1, a CPU 2 as control means for executing a control program, a control program rewriting function, and a high-speed communication processing function with the outside. A startup program storage unit 13 composed of a flash ROM that stores a startup program that operates at the time of initial setting by turning on or operating a reset switch, and a control program storage unit 14 composed of a flash ROM that stores a control program for elevator operation are executed. A switching means 15 for switching programs and an external communication interface 17 are mounted, and the CPU 2 and each functional block are connected via a bus 7.

  Here, the switching means 15 operates at the time of initial setting when power is turned on or when a reset switch is operated, and generates a first reset signal for executing a start program, and a start program A second reset generating unit 25 for generating a second reset signal by S / W for switching the processing of the above to the processing of the control program, and an electrical switch for performing selection control of the activation program or the control program as the processing program The CPU 2 switches the processing program according to the type of the reset signal.

  2 and 3 are diagrams showing an arrangement configuration (memory arrangement configuration) of the processing address space of the CPU 2. FIG. 2 shows a memory arrangement configuration when operating with a startup program. When operating from the startup program, the startup program 21 is allocated from the startup address 20 of the CPU 2, and the control program 22 is allocated in another address space. Is done.

  FIG. 3 shows a memory arrangement configuration when operating with a control program. When operating from the control program, the control program 22 is stored from the activation address 20 of the CPU 2. At this time, the activation program is not arranged in the processing address space of the CPU 2, and the activation program cannot be processed during the control program processing. The arrangement configuration of the processing address space of the CPU 2 is switched based on a reset signal from the switching means 15.

  Next, the operation of the elevator control apparatus having the above configuration will be described with reference to the flowcharts shown in FIGS. FIG. 4 shows an operation sequence of the startup program from the time of initial setting by power-on or reset switch operation until the control program starts operating. After initial setting by turning on the power or operating the reset switch, the CPU 2 reads the activation program from the activation program storage unit 13 and starts the operation of the activation program (steps S30 and S31).

  Thereafter, the CPU 2 determines whether or not there is an external control program rewrite request via the external communication interface 17 (step S32). If there is a rewrite request, a control program rewrite process for the control program storage unit 14 is performed (step S33). On the other hand, if there is no rewrite request, it is determined whether there is a request for high-speed communication processing from the outside via the external communication interface 17 (step S34). If there is a request for high-speed communication processing, high-speed communication processing is performed (step S35).

  On the other hand, if there is no request for high-speed communication processing, program selection setting for starting the control program stored in the control program storage unit 14 by switching control of the program selection setting unit 16 is performed (step S36). Then, an S / W reset signal as a second reset signal is generated (step S37), and after the S / W reset process, the CPU 2 reads the control program from the control program storage unit 14 and starts an operation based on the control program. (Step S38).

  Next, FIG. 5 shows an operation sequence of a control program, which is a processing procedure during normal service of the elevator. After the S / W reset process of the CPU 2, the CPU 2 starts the operation of the control program (Step S51). If a high-speed communication processing request is received from the outside via the external communication interface 17 during the operation of the control program (step S52). The CPU 2 determines whether or not the elevator service can be stopped, and waits until there is no user and the elevator service may be temporarily stopped (step S53).

  When the elevator service can be stopped, the elevator service is temporarily stopped, and then switching to the activation program storage unit 13 is set by the program selection setting unit 16 (step S54). Then, an S / W reset signal that is a second reset signal is generated (step S55). After the S / W reset process, the CPU 2 reads the activation program from the activation program storage unit 13 and starts the operation (step S56). Then, high-speed communication processing is performed (step S57).

  In FIG. 5, the case of high-speed communication processing has been described. However, by replacing the high-speed communication processing request and the high-speed communication processing execution in steps S <b> 52 and S <b> 57 with the program rewriting request and the program rewriting request execution, the program rewriting is similarly performed. Can be implemented.

  In the above-described embodiment, the program rewriting process and the high-speed communication process have been described. However, a process that cannot be performed during operation of the control program by a conventional elevator control board such as an image process or a voice process has the same configuration. realizable.

  Therefore, according to the above-described embodiment, as shown in FIG. 5, it is possible to perform high-speed communication processing with the outside and high-speed rewriting processing of the control program that could not be performed during the control program operation. Further, as shown in FIG. 4, it is possible to instantaneously switch the program that operates even when the elevator power is turned on.

  According to the present invention, high-speed rewriting processing and high-speed communication processing of a control program in an elevator control device are enabled.

It is a block diagram which shows schematic structure of the control apparatus of the elevator which concerns on embodiment of this invention. FIG. 2 is a diagram illustrating a memory arrangement configuration in a case where the processing address space of the CPU 2 illustrated in FIG. FIG. 2 is a diagram showing the arrangement of a processing address space of a CPU 2 shown in FIG. 1, and is a memory arrangement configuration diagram when operating with a control program. It is a flowchart which shows the control content of CPU2 shown in FIG. 1, and is a figure which shows the operation | movement sequence of the starting program from the time of initial setting by power-on or reset switch operation until a control program starts operation | movement. It is a flowchart which shows the control content of CPU2 shown in FIG. 1, and is a figure which shows the operation | movement sequence of the control program which is a process sequence in the normal service of an elevator.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Elevator control board, 2 CPU, 13 Starting program memory | storage part, 14 Control program memory | storage part, 15 Switching means, 16 Program selection setting part, 17 External communication interface, 24 1st reset generating part, 25 2nd reset generating part .

Claims (3)

A start program storage unit that stores a start program having a control program rewriting function and a high-speed communication processing function with the outside, a control program storage unit that stores a control program for elevator operation, and these storage units Control means for executing processing based on the program stored in
The control means switches to execution of the start program based on whether or not an elevator service can be stopped if there is a control program rewrite request or a high-speed communication processing request from the outside during the execution of the control program. An elevator control device that executes program rewriting processing or high-speed communication processing. In the elevator control device according to claim 1,
Switching means for generating a first reset signal for executing processing of the startup program at the time of initial setting and a second reset signal for switching processing of the startup program to processing of the control program;
The control means for switching the processing program according to the type of the reset signal. The elevator control device according to claim 2,
The control means arranges the start program at a start address when the start program operates in the processing address space, and arranges the control program in another address space and operates by the control program. In this case, only the control program is arranged, and the arrangement configuration of the processing address space is switched based on the reset signal.

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