JPH0334099A - Alarm system for multiple dwelling house and the like - Google Patents

Abstract

PURPOSE:To prevent the spread of wrong information by using a period of time set by a timing circuit to release malfunction in an individual dwelling house, etc. CONSTITUTION:Each dwelling house 11 to 1N is provided with a window open/ close switch 2 including a sensor function, and this switch 2 is connected to an indoor unit 3 with a built-in microcomputer 31, and the indoor unit 3 generates the alarm sound from an alarm device 4 according to the operating state of the switch 2, and simultaneously, it supplies an operating signal to a decision circuit 31b consisting of the timing circuit 31a and a gate circuit, etc. Here, when an error is caused in operation at the individual dwelling house, an alarm in said dwelling house operates once, but by resetting that error to the former state within the counting time at the timing circuit 31a, the derivation of the signal from the decision circuit 31b is stopped. Thus, the transmission of the wrong information to a central controller 6 can be prevented.

Description

[Detailed description of the invention]

[Object of the invention] (Industrial application field) This invention relates to improvement of alarm systems for apartment buildings, etc. (Prior Art) In general, an apartment complex often refers to a so-called condominium-style residence, but in this invention, it is not limited to cases where many residences are shared in one building. , including cases where a number of single-family residences are jointly managed. BACKGROUND ART Conventionally, some operation sets of alarm systems related to crime prevention in apartment complexes have two modes: going out and staying at home. This out-of-home mode is set when the user goes out, and there is an operational delay of about 2 minutes after the user sets the alarm system until the user actually goes out, and when the user returns from going out. There is a time delay of about 19 seconds in the alarm operation so that the alarm is not issued immediately even when the alarm occurs. In other words, if you set the house to go out mode and go out through the front door within 2 minutes, you can go out before the alarm is triggered, and when you come back from going out, you can go out within 1 minute after returning home. Once the set is released, the system can be used without triggering an alarm when the front door is opened when returning home. If a thief breaks in during this outing set, the intruder will not know where the outgoing mode release switch is.
Unable to release out-of-home mode within 1 minute after intrusion, 1 after intrusion
An alarm will be issued after the minute has elapsed. On the other hand, the at-home mode is set when the resident is sleeping, and in this at-home mode, an alarm is issued immediately when a sensor attached to a door or window detects that the door or window is opened. Therefore, the configuration and operation of a conventional alarm system in home mode related to crime prevention in apartment complexes, etc. will be explained with reference to FIGS. 4 to 6.
An example will be explained in which a warning is issued upon detecting the opening of a window by an intruder. That is, each house II, 12. ~ IN is provided with a window opening/closing switch 2 having a sensor function, and this opening/closing switch 2
is a microcomputer (hereinafter referred to as microcomputer)
31 is connected to the indoor unit 3 having a built-in unit. As shown in FIG. 5(a), the indoor unit 3 generates an alarm sound from an alarm device 4 such as a bell or a speaker in accordance with the operating state of the open/close switch 2, and at the same time generates an alarm sound as shown in FIG. 5(b). )
As shown in the figure, by turning on the so-called transfer contact 32, the communication unit 5 also transmits information to the management device 6 in the central control room.
This is to notify an abnormal state (window open) of the operation of the opening/closing switch 2. Therefore, once the -degree transfer contact 32 is activated, that state continues, and even if the open/close switch 2 is closed, the state of alarm reception on the management device 6 side continues unless it is forcibly released. In addition, the indoor unit 3 is provided with a home set switch 33 and an out-of-home set switch (not shown), which control switching of the alarm system of the entire indoor unit 3 to the start (on) or stop (off) state of the out-of-home mode. In normal life where the operation of the security system is not required, both the out-of-home and at-home modes can be set to off. Therefore, the operation of the conventional alarm system described above will be further explained with reference to the flowchart shown in FIG. First, the microcomputer 31 etc. determines whether the set switch 33 is turned on and the entire alarm system is set (monitored) (step (a)).
. In this set state, the operation signal of the window opening/closing switch 2 determines whether the window is in the open state (the closed state is defined as the normal state) via the microcomputer 31.
(b)) When in the open state, the alarm 4 is activated to report the abnormality occurrence state (step (c)). In addition, at the same time as the alarm by the alarm device 4, the transfer contact 32
is closed, step (d)), information on the occurrence of an abnormal situation is transmitted via the line 5a connected from the communication unit 5 of each house to the central management device 6, and the alarm in the management device B is activated. . By the way, this at-home mode, in which an alarm is set when Doutoana is at home, is mainly set when sleeping, but when he wakes up, he forgets that the alarm is set and tries to cancel the alarm in at-home mode. Windows and doors may be opened to exchange indoor air without doing so. Opening the window at that time is an incorrect operation, so originally the alarm should not have sounded, but as mentioned above, the alarm is immediately transmitted not only to the inside of the door but also to the central control device G, and the alarm is raised at the same time. and is issued automatically. When the window opener itself activates the alarm 4 inside the door, it immediately realizes that it has operated incorrectly, but in the remote central control room, it is not immediately obvious that the alarm was caused by an error, so there is no way to know if it is true. This information will be used to respond to the alert. Warning systems need to transmit information accurately and quickly for the purpose of disaster prevention, but false alarms not only confuse the system, but can also cause a loss of reliability in system use. Therefore, it is of course necessary to reduce the number of erroneous operations on the terminal side as much as possible, but it is also required to resolve confusion caused by erroneous operations as early as possible, and to operate a more accurate warning system. On that point, when the above-mentioned conventional alarm system is set to home mode, an alarm inside the door immediately leads to an alarm in a remote central control room, so it is not easy to cancel false alarms.
Some kind of improvement was requested. (Problem to be Solved by the Invention) In conventional alarm systems for apartment complexes, etc., the alarm in each unit at the terminal immediately activated simultaneously in the central control room.
In the case of an erroneous operation, it was necessary to contact each other separately and confirm the situation with each other, which caused confusion. Therefore, it is an object of the present invention to provide an alarm system for housing complexes, etc., which can prevent alarms caused by erroneous operations from immediately escalating and are transmitted directly to a central control room, and which can improve the functionality and reliability of the system. purpose. [Structure of the Invention] (Means for Solving the Problems) The present invention provides an alarm system for apartment complexes, etc. configured such that alarm information related to crime prevention in individual houses, etc. is transmitted to a central management device. It is equipped with a clock circuit that counts the passage of time after the alarm is activated in each house, etc., and a determination circuit that determines the presence or absence of the alarm based on the output signal from the clock circuit and transmits the information to the central management device. The present invention is characterized in that it is possible to cancel malfunctions in individual houses etc. by using the time set by the clock circuit. (Function) In the alarm system for apartment complexes, etc. according to the present invention, if an error occurs in the operation at the terminal of an individual house, the alarm in that house will operate for -10 days, but within the counting time in the clock circuit. By restoring the erroneous operation to its original state, the derivation of the signal from the determination circuit is stopped and transmission of false alarms to the central management device is prevented. Although the counting time in the timer circuit can be set to an appropriate length of time depending on the purpose, it is usually desirable for the time to be as short as possible in view of the functionality of the system. In a crime prevention system, only the resident can set at least the length of time required to correct an erroneous operation, for example, about 2 seconds. (Embodiment) Hereinafter, an embodiment of the at-home mode of the alarm system for apartment complexes, etc. according to the present invention will be described in detail with reference to FIGS. 1 to 3. Components that are the same as those in FIGS. 4 to 6 are denoted by the same reference numerals, and detailed description thereof will be omitted. That is, each house 11, 12. ~IN is provided with a window opening/closing switch 2 including a sensor function, and this switch 2 is connected to an indoor unit 3 having a built-in microcomputer 31. The indoor unit 3 causes the alarm 4 to generate an alarm sound depending on the operating state of the switch 2, and at the same time supplies an activation signal to a determination circuit 31b consisting of a clock circuit 31a, a gate circuit, and the like. As shown in FIG. 2, the timing circuit 31a immediately counts the elapsed time after receiving the ON operation signal (A) from the open/close switch 2, and outputs a gate drive signal (B) that turns ON after 2 seconds, for example. The signal is supplied to the determination circuit 31b. At that time, if the operating signal (A) from the open/close switch 2 is still being supplied to the determination circuit 31b, the transfer contact 32 is activated as true alarm information, and the communication unit 5 sends the signal to the central control room as in the past. The abnormal state is reported to the management device G located at the location. If the opening of the window is due to an erroneous operation by the resident, if the person who operated the erroneous operation becomes aware of it by the alarm sound of the alarm device 4 and closes the window within 2 seconds and returns to its original state, the determination circuit 31b Since no output is made and the transfer contact 32 is never activated, transmission of an alarm to the central control room due to an erroneous operation is prevented, as shown in the notification signal (C) in FIG. Here, considering the setting time of 2 seconds, the operation of the alarm 4 will of course vary depending on the operating sensitivity and operating range of the window opening/closing switch 2, but in general, the switch will operate immediately after the window starts moving. Since it can be set to 2 seconds, it is possible to sense an erroneous operation at the same time as starting the operation of opening the window, and reflexively shift to the operation of closing the window, so the time length of 2 seconds can be said to be sufficient time to cancel the erroneous operation. Also, 2 seconds is a short time for people to come and go through the opening and closing of windows, and for example, it is too short for an intruder to enter and close the window again.
There is no risk of impeding normal disaster prevention or crime prevention functions. Of course, in the present invention, the time length in the clock circuit 31a can be set arbitrarily depending on the purpose. Therefore, the operation of the system according to the present invention will be further explained with reference to the flowchart shown in FIG. First, as in the past, the set switch 33 is turned on and the microcomputer 3 determines whether the entire alarm system is in the set state.
1 (step (a)). In this set state, the microcomputer 31 determines whether or not the window is in the open state (normally closed) according to the operation signal of the opening/closing switch 2.Step (B)
), when the signal indicates an open state, the alarm 4 is activated to notify the occurrence of an abnormality (step (c)). Simultaneously with the activation of the alarm 4, time measurement in the time measurement circuit 31a is started (step (e)). Next, a step is taken to determine whether or not a predetermined set time length (in this case, 2 seconds) has been timed, and when it has exceeded, tl+l
It is determined by the rotation 31b whether the window is still open (step (g)). At this time, if the window is closed, the operation of the alarm 4 is stopped (step (H)), and when the window is not closed, the transfer contact 32 is closed for the first time (step (D)), and an abnormality occurs in the central control device 6. Report. In the above embodiment, the microcomputer 31 can be replaced with a relay circuit or the like, and the determination circuit 31b can also be replaced with an AND circuit (
It can also be configured with a matching circuit) or the like. Further, in the above embodiment, the case where there is only one open/close switch 2 has been explained, but it goes without saying that it can be similarly applied to a plurality of detection points, and a digital data signal is adopted as the information transmission signal of this system. You can also do that. As explained above, according to the system of the present invention, even if a resident accidentally opens a window, the false alarm will not reach the central management device 8 by correcting the error. is prevented. Moreover, since the correction of the false alarm is usually carried out within a short period of time, the system operates without losing its function as a regular alarm system, thereby improving the reliability of the system. As described above, the alarm system for apartment complexes, etc. according to the present invention can prevent the spread of false alarms by adding a simple configuration such as a timing circuit and a judgment circuit, and can prevent the alarm system from being confused as in the past. This can also prevent the system from causing problems or causing a loss of system reliability.

【Effect of the invention】

The present invention is capable of immediately repairing erroneous operations at the terminals in alarm systems for apartment buildings, etc., preventing false alarms from being sent to the center, and maintaining normal operating functions, which can be obtained in practical use. The effect is great.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of an alarm system for apartment complexes, etc. according to the present invention, FIG. 2 is a timing chart explaining the operating state of the alarm system shown in FIG. 1, and FIG. 3 is a diagram similar to that shown in FIG. 1. FIG. 4 is a block diagram showing an example of a conventional alarm system for apartment complexes, etc.; FIG. 5 is a flowchart explaining the operating order of the alarm system shown in FIG. 4; FIG. Timing chart,
FIG. 6 is a flowchart illustrating the operating sequence of the alarm system similarly shown in FIG. 4. 11, 12. ~IN...Residence, 2...Window opening/closing switch, 3...Door switch, 31
...Microcomputer, 31a...Clock circuit, 31b...
Judgment circuit, 82... Moving contact, 33... Set switch, 4... Alarm, 5... Communication unit, δ...
・Central management device.

Claims (1)

[Claims] In an alarm system for an apartment complex, etc., configured such that alarm information related to crime prevention in individual houses, etc. is transmitted to a central management device, a clock circuit that counts the elapsed time after the alarm is activated in the individual houses, etc.; , and a determination circuit that determines the presence or absence of the alarm based on the output signal from the clock circuit and transmits the information to the central management device, and uses the time set by the clock circuit to determine whether or not there is an alarm. An alarm system for apartment complexes, etc., characterized by making it possible to cancel malfunctions.