JPH0214400A - Alarm - Google Patents

Abstract

PURPOSE:To prevent the occurrence of damage, etc., caused by alarm leakage by purposefully releasing the interlocking stopped state of the title device on condition that the device becomes a state to generate an alarm even when the device is under the interlocking stopped state for inspecting the device, etc. CONSTITUTION:For an alarm 1, it is checked whether the alarm 1 is under the interlocking stopped state or not from the state of an interlocking stopping switch, and when the alarm 1 is not under the interlocking stopped state, all the counters are reset, and the operation of the alarm 1 is ended. The counters are provided correspondingly to respective plural sensors 3 to send detected signals to the alarm 1, and each counter counts the number of the times of the operation of its corresponding sensor 3. When the alarm 1 is under the interlocking stopped state, it is checked whether fixed time passes after the alarm 1 is made into the interlocking stopped state or not, and the operation of the alarm 1 is ended as long as the checked result is 'No'. This is for judging whether the state in which the detected signals from the sensors 3 are never inputted to the alarm 1 continues for previously determined time or longer or not. At a point where the fixed time passes, it is checked whether abnormality occurs in one part of a system or not, the interlocking stopped state is released when the abnormality occurs, and the operation of the alarm 1 is ended.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a 7-alarm alarm device that performs operations such as issuing an alarm and transmitting a message to another device in response to detection signals from sensors that detect various conditions.

[Prior art] For example, in a disaster prevention or crime prevention system for a building, various sensors placed at appropriate locations within the building detect fire, intrusion into a room, or their precursors, and the detection signals are sent to the management of the building. The information is sent to alarm devices installed in rooms, etc. Specifically, the disaster prevention system uses smoke sensors and temperature sensors to detect the occurrence of a fire, and the crime prevention system uses sensors placed at the entrances and windows of each room to detect when people are leaving the room, whether doors are open or closed, etc. It is designed to detect the locked/unlocked state and intrusion into the room.

The alarm device has an interlocking function that performs operations such as issuing an alarm in response to detection signals from such sensors. In addition to alarm generation, interlocking in alarm devices includes transmission of alarms to others,
This includes operational instructions for smoke prevention equipment and fire extinguishing equipment. The alarm devices currently in use also have an interlocking stop function that allows the operator to temporarily stop the interlocking function by operating a switch, in order to avoid unnecessary alarms during operation tests and inspections.

[Problems to be Solved by the Invention] However, in the conventional alarm device equipped with the interlocking stop function as described above, the operator returns the switch to its original state at the end of the inspection, that is, cancels the interlocking stop and stops the interlocking. Sometimes I forget to reset it.

In addition, there are cases where the interlocking operation is intentionally stopped in order to avoid false alarms. In these cases, even if the sensor generates a detection signal, the alarm device in the interlocking stop state does not issue an alarm or transfer the message, so there is a problem that detection of fire, etc. is not possible or occurs very late. .

Therefore, the purpose of the present invention is to automatically cancel the interlocking function even when the interlocking function is stopped, when an inspection, etc. is completed and a situation where an alarm should be issued is omitted. It is an object of the present invention to provide an alarm device that can prevent damage caused by.

[Means for Solving the Problems 1] The present invention provides an interlocking function that performs operations such as generating an alarm and transmitting a message to another device in response to detection signals from sensors that detect various conditions, and a system that temporarily disables the interlocking function. In an alarm device equipped with an interlocking stop function, if the detection signal from the sensor continues for a certain period of time after entering the interlocking stop state, and if an abnormality occurs in a part of the system, When the level of the detection signal input from the sensor is higher than a predetermined value, When detection signals are generated from multiple sensors.

The present invention is characterized in that the interlocking stop is canceled when one of the cases in which a detection signal is generated multiple times from the same sensor occurs.

[Function] According to the first reporting device of the present invention, even if the interlocking stop state is due to 5 inspections, etc., a level higher than a predetermined value is detected after a state in which no detection signal from the sensor is input for a certain period of time or more. When a signal is input, the interlocking stop is automatically released. Therefore, it is possible to perform operations such as generation of 7 reports and transfer of reports to others in accordance with the detection signal. To cancel this interlocking suspension,
If a detection signal from a sensor is not input for a certain period of time, an abnormality occurs in a part of the system (for example, a failure of a control device, etc.), detection signals are generated from multiple sensors, or if the same This is also done when the sensor generates a detection signal multiple times.

In this way, by automatically canceling the interlocking stop under certain conditions, it is possible to deal with forgetting to manually cancel the stop and return to a state where necessary alarms are generated without fail.

[Example] The one-report device l shown in FIG. It has an interlocking function that performs operations such as transferring information to other devices (for example, a building management device), and an interlocking stop function that temporarily stops the interlocking function by operating an interlocking stop switch. Examples of such first alarm devices include automatic fire alarm panels in disaster prevention systems, crime prevention management devices in crime prevention systems, etc.
Each is installed at a predetermined location, for example, in seven rooms in a building.

For example, in the case of a building disaster prevention system, the automatic fire alarm panel that functions as a 7-alarm device is called an R-type receiver. It operates in response to detection signals sent from fire sensors placed throughout the building. Fire sensors detect smoke generated within a building and local temperature limits. These sensors 3
is connected to the transmission line 2 directly or via a repeater 4.

Furthermore, in the case of a crime prevention system, a plurality of crime prevention lines including various security sensors placed at appropriate locations within a building are connected to an alarm device. Security sensors 1 detect intrusion into a building through a window, for example, and include infrared sensors, ultrasonic sensors,
Microwave sensors, glass breakage sensors, etc. are used.

One crime prevention line is formed, for example, by serially connecting sensors arranged in each section of each tenant's room, passage, etc.

Next, the operation of the alarm device of the embodiment will be explained according to the flowchart of FIG. In this case, the alarm device includes a CPU and a storage device that performs the following interlocking stop release operation in addition to normal operations such as generating 7 alarms.

First, the alarm device checks whether or not the interlocking stop is in progress based on the state of the interlocking stop switch, and if the interlocking stop is not in progress, it resets all counters and ends the operation. The counter is provided corresponding to each of the plurality of sensors that send detection signals to the alarm device, and counts the number of times the corresponding sensor has operated (generated a detection signal).

If the interlocking is stopped, check whether a certain amount of time has passed since the interlocking stopped, and as long as the answer is "No", the operation will end (
(continues the interlocked stop state). This is to determine whether or not a state in which no detection signal from the sensor is input has been present for a predetermined period of time or more. When this certain period of time has elapsed, it is checked whether an abnormality has occurred in a part of the system, and if an abnormality has occurred, the interlocking stop is canceled and the operation ends. If there is no abnormality, it is checked whether a detection signal is generated from the sensor, and if "No", the operation ends. When a detection signal is generated from a sensor, it is determined whether it is a multivalued sensor. Here, a multi-value sensor refers to a sensor that outputs a large number of detected values to represent an analog value such as smoke density.The determination of whether or not it is a multi-value sensor is based on the sensor that generated the detection signal. With data memorized in advance for category 4! ]r (This is done by combining.

As a result of the above judgment, in the case of a multi-value sensor, it is judged whether at least one detected value is at a predetermined level heat, and if it is "Yes", the interlocking stop is canceled and the operation is terminated. Become. If “No”, determine whether the detected value of the 1M number is 2 or more above the level lower than Ll above, and “Yes”.
``If so, the interlocking stop will be canceled, and if ``No'', the operation will end without canceling the interlocking stop.Here, Ll and 1..2 are 1, for example, fire II + smoke concentration level for cutting off. The settings are as shown in Figure 3, where the higher level L1 corresponds to 3g! (smoke prevention equipment activated), and the lower level L2 corresponds to type 1 or 2 (automatic fire alarm activated). ). Note that a pre-alarm (preliminary alarm generation) is set at a level lower than L2.

On the other hand, if the sensor is not a multi-value sensor, it is determined whether or not a predetermined number of n or more sensors have performed a detection operation. If "Yes", the interlocking stop is canceled and the operation ends. In the case of "'Ha", the counter corresponding to the activated sensor is incremented, and if the counted value does not reach a certain number, the operation will end as shown by the connector ■ (the interlocking stop will not be released). However, when the count value of the counter corresponding to the activated sensor reaches a certain number, that is, when the same sensor outputs the detection signal a predetermined number of times, the interlocking stop is canceled and the operation ends.

To summarize, in the above embodiment, the interlocking stop is canceled when a state in which no detection signal from the sensor is input for a certain period of time after the interlocking stop state continues, and when any of the following applies. be.

■When an abnormality occurs in a part of the system, ■When the level of the detection signal input from the multi-value sensor is higher than a predetermined value, When the detection signal is generated from 011 or more sensors ■When the same sensor generates multiple times When a detection signal occurs.

This interlocking stop release operation can be commonly carried out in the above-mentioned automatic fire alarm panel and crime prevention management device, as well as in 7 alarm devices used in a disaster prevention system or a crime prevention system.

Although the embodiments have been described above, the present invention is not limited thereto. For example, the configuration of the device that performs interlocking stop cancellation, the first reward number output from the seventh alarm device, etc. are arbitrarily determined depending on the characteristics of the system including the alarm device.

[Effects of the Invention] As described above, even if the alarm device of the present invention is in the interlocking stop state for inspection etc., the interlocking stop can be automatically stopped on the condition that a situation in which an alarm should be generated occurs. Since it is released, it is possible to deal with forgetting to release it manually, and to ensure that operations such as issuing alarms and transferring signals to others in response to emergencies such as fires can be performed without omission, and damage caused by omission of the first alarm or transfer of alarms, etc. can be prevented.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an alarm device of the present invention in which a plurality of sensors are connected, Fig. 2 is a flowchart showing the interlocking stop release operation of the embodiment, and Fig. 3 is a graph showing criteria for determining the detection signal level from the sensors. It is. l...1 reporting device, 2...transmission line, 3
...Sensor, 4...Repeater. Patent applicant Yamatake Honeywell Co., Ltd.

Claims (1)

[Claims] In an alarm device equipped with an interlocking function that performs operations such as issuing an alarm and transmitting the alarm to another in response to detection signals from sensors that detect various conditions, and an interlocking stop function that temporarily stops the interlocking function, If a state in which no detection signal is input from the sensor continues for a certain period of time after entering the interlocking stop state, and if an abnormality occurs in a part of the system, the level of the detection signal input from the sensor is set to a predetermined value. In the above case, the alarm is characterized in that the interlocking stop is canceled when detection signals are generated from multiple sensors or when detection signals are generated multiple times from the same sensor. Device.