JP2628613B2 - Elevator intercom - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator communication device, and more particularly to an elevator communication device suitable for not responding to prank calls.

[Conventional technology]

For a conventional elevator communication device, a call button is installed in the car, and when the call button is pressed, a bell such as an elevator hall or a manager's room sounds, or in a car. Install the call button and intercom unit, install the intercom master unit in the manager's room, and when the call button in the car is pressed, pick up the handset of the intercom master unit in the manager's room according to the signal, and A communication device that enables a telephone call with an intercom slave device has been common. In addition, in order to strengthen the management system, a signal from a call button in the car drives a pre-recorded recording tape, and performs automatic dialing, using a telephone line to use a specialized maintenance company or a specialized security company. Communication devices have been introduced that can be used for reporting. However, in this type of conventional telephone device, when the call button in the car is pressed, the telephone device immediately answers, so that mischievous calls frequently occur and the management system is often confused. I was Especially for elevators for apartments, there are many mischiefs by children, and measures have been urgently taken.

To improve the above problems, for example,
As described in No. 110549, a circuit in which the call device responds only when the call button is kept pressed for a predetermined time or pressed a predetermined number of times within a predetermined short time in consideration of the tampering of the call button in the elevator car Are provided.

[Problems to be solved by the invention]

As described above, in the elevator communication device according to the prior art, in consideration of tampering, the notification device does not respond unless the call button is kept pressed for a predetermined time, and the predetermined time T is set at a predetermined value. Thus, the time limit can be set to an arbitrary time limit. However, since the time limit is changed by a hard timer or the like, the time limit cannot be changed flexibly in response to a request from the customer to change the time limit. That is, when a request for changing the time limit corresponding to the tampering is received from the customer, the only method is to change the set time limit of the timer.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an elevator communication device capable of more flexibly responding to the customer request.

[Means for solving the problem]

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

[Action]

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

Now, it is assumed that a request to change the set time T to tn has occurred from the external device. If tn is larger than the MAX value, for example, MAX is set for the set time T. If tn is smaller than the MIN value, for example, MIN is set for the set time T. For example, when tn is between MAX and MIN, the set time T is set to the value of tn.

That is, the set time T can be changed from an external device, and the value of the set time limit tn at which the change request was issued is a value shorter than necessary due to some reason such as an input error, or more than necessary. Even if it is a long value, it works to correct it to an appropriate value, and there is an effect that the set time T can always be kept within a predetermined range.

〔Example〕

Hereinafter, an embodiment of an elevator communication apparatus according to the present invention will be described with reference to the drawings.

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

In the figure, 1 is an elevator car, 2 is an elevator communication device, 3 is a maintenance device which is connected to the communication device 2 and can read / write a memory in the device in order to perform maintenance and inspection of the device, and 4 is communication such as a telephone line. Line 5 is a central monitoring device, 1a is a call button provided in car 1, 1b is car 1
, An input buffer for inputting an input signal of a call button 1a into the communication device 2, an input port 2b for inputting an input of the input buffer 2a into software, and a communication device 2c. When the communication device 2 detects the necessity of a call between the car 1 and the central monitoring device 5, the memory 2 d notifies the central monitoring device 5 of the information and detects the information. A communication port 2e for enabling communication between the communication device 1b and the communication device 2b, an MPU 2e for controlling the operation of the program in the communication device 2, and a communication port 2f for connecting the notification device 2 and the maintenance device 3 are provided.

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

In the figure, 2g is software for controlling the inside of the elevator notification device 2, 2g ₁ is a call button monitoring means for monitoring the operation status of the call button 1a in the car 1 inputted through the input port 2b, 2g ₂ is The set time period (T) set to determine whether or not the operation of the call button 1a is a mischief call, 2g ₃ is the call button monitoring means 2g ₁ and the set time period 2g ₂
Thus, the call time monitoring means for determining the necessity of a call to the central monitoring device 5, 2g ₄ is provided when the call time monitoring means 2g _{3 determines} that the central monitoring device 5 needs a call. This is a notification means for enabling communication between the notification and central monitoring device 5 and the communication device 1b in the car 1.

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

A call button 1a provided in the car 1 is connected to a call button monitoring means 2g ₁ via an input port 2b in the communication device 2.
Is constantly monitored by The call button monitoring means 2g
₁ has set the operating time of the call button 1a, and transmits that information always call timed monitoring means 2 g _3. In the call time monitoring means 2g ₃ , the call button monitoring means 2
g The operation time of the call button 1a transmitted from ₁ and the memory in the telephone device 2 (this memory is 2c in FIG. 1)
, Which can be freely read / written from the outside), and compares the set time T (2g ₂ ) stored in the memory with the operation of the call button 1a transmitted from the call button monitoring means 2g _1. time, serve to transmit information to the reporting unit 2 g ₄ only when it exceeds the set time T. The reporting means 2g ₄
When information described above from the call timed monitoring means 2 g ₃ is transmitted, the call through the communication port 2d and the communication line 4, and information transmitted to the central monitoring unit 5, and the telephone device 1b in the car 1 ride with a central monitoring unit 5 Enable.

As described above, the set time T is stored in a memory (2 in FIG. 1) that can be freely read / written from the outside of the communication device 2.
c), it can be freely changed from an external device such as the maintenance device 3 connected to the communication port 2f or the central monitoring device 5 connected via the communication port 2d and the communication line 4. can do. This external device 3 or 5
When a request for changing the set time T is issued, the time setting means
According to 2g ₅ , it is determined whether the requested set time is appropriate.

The present invention, the relates timed setting means 2 g _5, it will be described with reference to FIG. 3 of the flow chart and Taimuchiyato of FIG. 4 for the operation below.

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

Now, it is assumed that a request to change the set time T to tn has occurred from the external device 3 or 5 (procedure F10). If tn has been made with the value indicated by t ₃ in FIG. 4 for example, the set time T is MAX is set (Step F20 → F40). If tn has been made with a value represented by t ₁ in FIG. 4 for example, the set time T is MIN is set (Step F30 → F40). If tn has been made with the values shown, for example, in FIG. 4 in t ₂ only, the time setting is set by the value of t ₂ (Step F20 → F30 → F60). That is, the time limit setting means 2g ₅
If the value of the setting time period tn for which a change request has been issued from the external device 3 or 5 is an unnecessarily short value or an unnecessarily long value due to an input error or some other reason, it is determined that the value is appropriate. The setting time T can always be kept within a predetermined range.

〔The invention's effect〕

ADVANTAGE OF THE INVENTION According to this invention, the predetermined time which determines the operation time of the call button provided in the elevator car can be changed freely from an external device, and the setting time limit at which the change request was issued may be changed by any error such as an input error. Depending on the cause, even if the value is shorter than necessary or longer than necessary, there is a function to correct it to an appropriate value, so even if you make an incorrect operation, the response time will be It is always within a predetermined range, and there is an effect that it is possible to more flexibly respond to a customer's request for changing the time limit for tampering.

[Brief description of the drawings]

1 is an overall configuration diagram showing an embodiment of an elevator communication apparatus according to the present invention, FIG. 2 is a system block diagram, FIG. 3 is a flow chart of a portion according to the present invention, and FIG. 4 is a time chart. . 1 ... car, 1a ... call button, 1b ... phone, 2
…… intercom equipment, 2a …… input buffer, 2b …… input port, 2c …… memory, 2d …… communication port, 2e …… MPU, 2f
…… Communication port, 3… Maintenance equipment, 4 …… Communication line, 5
… Central monitoring device, 2g… Software in the communication device.

Claims (1)

(57) [Claims] An elevator capable of communicating with a communication device provided outside the car via a communication device in the car when a call button provided in the car of the elevator is operated for a predetermined time or more. In the communication device, the upper limit value and the lower limit value of the predetermined time are set, and a setting means for setting the predetermined time from outside the car is provided, and when the predetermined time exceeds the upper limit value, To the upper limit,
Further, when the predetermined time is set to a value less than the lower limit, means for setting the lower limit is provided.