JPH0489781A - Elevator communication device - Google Patents

Abstract

PURPOSE:To take proper measures for mischievous button depressing by installing a setting means where prescribed time is set from the outside of a cage, and a means for setting to an upper limit value if the prescribed time is set in excess of the upper limit value and a lower limit value if it is set to less than a lower limit value. CONSTITUTION:Now, it is assumed that the demand of a change of setting time T to tn from an external device 3 or 5 is generated. When tn is a value indicated by t3, for example, the setting time T is set to maximum one. When tn is a value indicated by t1, for example, the setting time T is set to minimum one. Only when tn is a value indicated by t2, for example, the setting time is set to t2. Even when setting time tn of change demand from the external devices 3 or 5 is shorter or longer than necessary for some reason such as mistaken inputting, a time setting means 2g5 comes into action so as to make it replenished properly, so it is possible to keep the setting time T within a prescribed range at all time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an elevator communication device, and more particularly to an elevator communication device suitable for preventing responses to prank calls.

[Conventional technology]

Conventional elevator communication devices include a simple device in which a call button is installed inside the car, and when the call button is pressed, a bell rings in the elevator hall or the manager's room. A call button and an intercom device are installed, and an intercom device is installed in the caretaker's room.When the call button in the car is pressed, the handset of the intercom device in the caretaker's room is picked up by the signal, and the intercom device in the car is pressed. Telephone devices that were able to communicate with an intercom slave device were common. In addition, in order to strengthen the management system, a pre-recorded recording tape is driven by a signal from the call button inside the car, and automatic dialing is also carried out.
Telephone devices that use telephone lines to report to specialized maintenance companies or specialized security companies have come into use.

However, with conventional telephone devices of this type, when the call button in the car was pressed, the telephone device would respond immediately, which resulted in frequent prank calls and confusion in the management system. was. Particularly in elevators for apartments, there are many cases of mischief by children, and countermeasures are urgently needed.

To improve the above problems, for example,
As described in No. 110549, a circuit in which the telephone device responds only when the call button is pressed for a predetermined period of time or is pressed a predetermined number of times within a predetermined short period of time, taking into account the possibility of tampered pressing of a call button in an elevator car. A device equipped with the following has been devised.

[Problem to be solved by the invention]

As mentioned above, the conventional elevator communication device is configured such that the notification device does not respond unless the call button is held down for a predetermined period of time in consideration of tamper presses, and the predetermined period of time T is However, since this time limit can be changed using a heart timer or the like, it is not designed to flexibly respond to customers' requests to change the time limit. In other words, if a customer requests a change in the time limit in response to this mischief, the only option is to change the time limit set on the timer.

An object of the present invention is to provide an elevator communication device that can more flexibly respond to customer requests.

[Means to solve the problem]

In order to achieve the above object, in the present invention, when a call button provided inside an elevator car is operated for a predetermined time or more, a call button provided inside the elevator car is connected to a call device provided outside the car via a call device inside the car. In an elevator communication device capable of making a telephone call, a setting means is provided for setting upper and lower limits of the predetermined time and setting the predetermined time from outside the car, and the predetermined time exceeds the upper limit. The configuration includes means for setting the predetermined time to the upper limit value when the predetermined time is set, and to the lower limit value when the predetermined time is set to a value less than the lower limit value.

[Effect]

First, as a precondition, an upper limit value MAX and a lower limit value MIN are set for the set time T.

Now, assume that an external device issues a request to change the set time T to tn. For example, if tn is larger than the MAX value, the set time T is set to MAX.

Further, if tn is smaller than the MIN value, for example, the set time T is set to MIN. For example, if tn is between MAX and MIN, the set time T is set to the value of tn.

In other words, the set time T can be changed from an external device, and if the value of the set time limit tn requested to be changed is shorter than necessary due to some reason such as an input error, or Even if it is a long value, it works to correct it to an appropriate value, and has the effect of always keeping the set time T within a predetermined range.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an elevator communication device of the present invention will be described below with reference to the drawings.

FIG. 1 is an overall configuration diagram showing an embodiment of an elevator communication device of the present invention.

In the figure, 1 is an elevator car, 2 is an elevator communication device, and 3 is a maintenance device that is connected to the communication device 2 and can read/write the internal memory of the device in order to perform maintenance and inspection of the device.
4 is a communication line such as a telephone line, 5 is a central monitoring device, 1a is a call button provided in the car 1, 1b is a communication device provided in the car 1, and 2a is an input signal of the call button 1a. Input buffer for inputting into the communication device 2, 2b
2c is a memory provided in the communication device 2; 2d is an input port for inputting the input from the input buffer 2a into the software; 2d is an input port for the communication device 2 to detect the need for communication between the vehicle 1 and the central monitoring bag w5; 2e is a communication boat for reporting the information to the central monitoring device 5 and enabling communication between the central monitoring device 5 and the communication device 1b, 2e is an MPU that controls program operation in the communication device 2, and 2f is a communication boat for connecting the reporting device 2 and the maintenance device 3.

FIG. 2 is a system block diagram of the elevator communication device of the present invention.

In the figure, 2g is the software that controls the inside of the elevator notification device 2, 2a is a call button monitoring means that monitors the operation status of the call button 1a in the elevator 1 that is input through the input port 2b, and 2gz is the call button. A set time period (T) is set to determine whether the operation in 1a is a prank call, and 2ga is the call button monitoring means 2g.
□ and a set time limit 2g2, a call time limit monitoring means 2g for determining whether there is a need to make a call to the central monitoring device 5;
Reference numeral 4 denotes a reporting means for making a call possible between the central monitoring device 5 and the communication device 1b in the car 1 when the calling time limit monitoring device 2g3 determines that there is a need for a call to the central monitoring device 5. It is.

First, the overall operation of the communication device 2 of the present invention will be explained.

A call button 1a provided in the car 1 is connected to the call button monitoring means 2 via an input port 2b in the communication device 2.
It is constantly monitored by g1.

The call button monitoring means 2g□ sets the operation time of the call button 1a, and always transmits this information to the call time limit monitoring means 2g3. In the call time limit monitoring means 2g3, the operation time of the call button 1a transmitted from the call button monitoring means 2g and the memory in the communication device 2 (this memory is shown by 20 in FIG. (can be read/written freely)
The call button 1 transmitted from the call button monitoring means 2g□ is compared with the set time T (2g2) stored in
It functions to transmit information to the reporting means 2g4 only when the operation time of a exceeds the set time T. When the above-mentioned information is transmitted from the call time limit monitoring means 2ga, the reporting means 2g4 transmits the information to the central monitoring device 5 through the communication port 2d and the communication line 4, and communicates between the central monitoring device 5 and the communication device in the car 1. Enables communication with 1b.

As mentioned above, the set time T is determined by the memory (2c in FIG.
), so for example, the maintenance device 3 connected to the communication port 2f, the communication port 2d and the communication port vA
can be freely changed from an external device such as a central monitoring device 5 connected via 4. When a request to change the set time T is issued from the external device 3 or 5, the time limit setting means 2gs determines whether the requested set time is appropriate.

The present invention relates to the time limit setting means 2g+; its operation will be explained below using the flowchart of FIG. 3 and the time chart of FIG. 4.

First, as a precondition, an upper limit value and a lower limit value are set for the set time T. In the time chart of FIG. 4, the lower limit value is indicated by MIN, and the upper limit value is indicated by MAX.

Now, assume that a request to change the set time T to tn is issued from the external device 3 or 5 (step F10).

If tn is, for example, the value shown by t3 in FIG. 4, the set time T is set to MAX (step F20 → F4
0). If tn is, for example, the value indicated by t in FIG. 4, the set time T is set to MIN (step F30).
→F40). Only when t'n is, for example, the value shown by t2 in FIG. 4, the set time is set to the value of t2 (step F20→F30-+F60). In other words, if the value of the set time limit tn requested to be changed by the external device 3 or 5 is a shorter value than necessary due to some reason such as an input error, or if the value is longer than necessary. Even if the time limit T is exceeded, it works to replenish it to an appropriate value, so that the set time limit T can always be kept within a predetermined range.

〔Effect of the invention〕

According to the present invention, the predetermined time that determines the operation time of the call button provided in the elevator car can be changed freely from an external device, and the set time limit for which the change is requested may be changed due to input errors or other reasons. Even if the value is shorter than necessary or longer than necessary due to the cause, there is a function to correct it to an appropriate value, so even if you make a mistake, the response time will be shortened. Always within a given range.

This has the effect of being able to respond more flexibly to customers' requests to change time limits.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram showing an embodiment of an elevator communication device according to the present invention, FIG. 2 is a system block diagram, FIG. 3 is a flowchart of a portion related to the present invention, and FIG. 4 is a time chart. 1...car, 1a...call button, 1b...talking device, 2...talking device, 2a...
...Input buffer, 2b...Input boat, 2
c...Memory, 2d...Communication boat, 2
e...MPU, 2f...Communication boat, 3
...Maintenance equipment, 4...Communication line, 5.
... Central monitoring device, 2g ... Software in the communication device.

Claims (1)

[Claims] (1) Press the call button installed inside the elevator car.
An upper limit value and a lower limit value for the predetermined time are set in an elevator communication device that can communicate with a communication device provided outside the car via the communication device inside the car when the elevator is operated for a predetermined time or more. , a setting means for setting the predetermined time from outside the car is provided, and when the predetermined time is set to exceed the upper limit value, the predetermined time is set to the upper limit value;
A communication device for an elevator, comprising means for setting the predetermined time to the lower limit when the predetermined time is set to a value less than the lower limit.