JPH09305884A - Building security equipment - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a building security device capable of continuing security in a security area including the remaining sensors when a part of a plurality of sensors provided for each security area in a building fails. SOLUTION: When a part of a plurality of sensors 5a to 5d provided for each of security areas Z1 and Z2 in a building 6 fails, an information processing means for invalidating an abnormal signal output from the failed sensor. An information rewriting command is output from the rewriting device 7 of the information processing means, and the abnormal signal is converted into a normal signal by the input information conversion unit of the MPU device 14 based on the information rewriting command. As a result, for example, when the sensor 5a fails, the abnormal signal output from the sensor 5a becomes invalid, so that the remaining sensors can be kept in a state where the abnormal notification to the monitoring center 1 due to the output of the abnormal signal is prevented. Security can be provided in the security zone Z2 including 5c and 5d.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building security device, and more particularly to a building security device provided with a plurality of sensors for each security zone in a building.

[0002]

2. Description of the Related Art Conventionally, as described in, for example, Japanese Unexamined Patent Publication No. 6-4793, the inside of a building is divided into a plurality of security areas in advance, and various security areas are used to detect an intruder. If multiple sensors are installed, such as an open / close detection sensor that detects the opening and closing of windows and doors, and an infrared sensor that detects infrared rays generated by the human body, and if an abnormality detection signal is output from these sensors, terminals in the same building A building security device has been proposed in which the device notifies a predetermined monitoring center via a telephone line.

FIG. 4 is a block diagram showing a conventional building security device of this type. The building security device shown in FIG. 4 includes a monitoring center 1, a terminal device 3 connected to the monitoring center 1 via a telephone line 2, and an input device 4 a to the terminal device 3.
Two security zones Z1 and Z2, for example, are set in advance in the building 6 in which the terminal device 3 is installed and which are composed of the sensors 5a to 5d respectively connected via 4d. First
In the security zone Z1 of the input device 4a, 4b and the sensor 5
a and 5b are provided, and similarly, other input devices 4c and 4d and sensors 5c and 5d are provided in the second security zone Z2.

In this conventional building security device, for example, when a person enters the building 6 and the sensor 5a detects an abnormality and outputs an abnormality signal, this abnormality signal is sent to the terminal device 3 via the input device 4a. Since it is input, the terminal device 3 notifies the monitoring center 1 via the telephone line 2. Next, the monitoring center 1 takes measures such as requesting the dispatch of a guard to the building 6.

When the building 6 is to be started by the activation of the building security device, for example, when one sensor 5a outputs an abnormal signal, this state is suitable for the security of the first security zone Z1. Not all sensors 5
The detection operation of a to 5d is invalidated. The reason why the above-described sensor 5a outputs the abnormal signal may be that the door or window of the first security zone Z1 is not closed, or that the sensor 5a itself is out of order. After eliminating these causes, the building security device is activated again.

[0006]

By the way, in the above-mentioned conventional building security device, for example, when the sensor 5a in the first security zone Z1 fails, the sensors 5c, 5d in the second security zone Z2 are normal. Although the security is available, the security of the second security zone Z2 is also interrupted, so that the inside of the building 6 will be completely unprotected until the time when the above-mentioned broken sensor 5a is restored. There is a problem that it is not preferable.

When the failed sensor 5a is to be replaced, this replacement requires a considerable amount of time and labor. Therefore, by temporarily invalidating the abnormal signal from only the failed sensor 5a. , Second security zone Z2
It is conceivable to resume the security of. However, if the failed sensor 5a is a normally open contact type, the sensor 5a
Is required to be removed. On the other hand, when the sensor 5a is a normally closed contact type, it is necessary to short-circuit the sensor 5a.
There has been a problem that a worker who performs work for temporarily invalidating an abnormal signal from the sensor 5a requires considerably specialized technology and experience.

The present invention has been made in view of the situation in the prior art as described above, and an object thereof is to operate normally when a part of a plurality of sensors provided for each security area in a building fails. It is an object of the present invention to provide a building security device that can continue security in a security area with the remaining sensors.

[0009]

In order to achieve this object, the present invention is provided with a plurality of sensors for detecting abnormality for each security area in a building, and outputs an abnormality signal from the sensor to the building. In a building security device equipped with a terminal device that notifies the monitoring center via a telephone line in accordance with the above, if a part of the plurality of sensors fails, the abnormal signal output from the failed sensor is invalidated. It is configured to include information processing means for

According to the present invention thus constructed, when a part of the plurality of sensors provided for each security area in the building fails, the information processing means outputs an abnormal signal output from the failed sensor. Since it is invalidated, the abnormality notification to the monitoring center due to the output of this abnormality signal is prevented. This allows security to continue in the guarded area with the remaining sensors working properly.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. 1 is a block diagram showing an embodiment of the building security device of the present invention, FIG. 2 is a diagram for explaining a terminal device provided in the building security device of FIG. 1, and FIG. 3 is a processing procedure of the building security device of FIG. It is a flowchart shown. In addition,
In FIGS. 1 and 2, the same components as those shown in FIG. 4 described above are designated by the same reference numerals.

In the building security device of this embodiment shown in FIG. 1, a rewriting device 7 for outputting an information rewriting command is provided separately from the monitoring center 1, and the terminal device 3 has an N
Inputting / outputting data between the rewriting device 7 and the modem device 9 connected to the telephone line 2 through the CU device 8
5 through the I / O device 10 and the input devices 4a to 4d
Other I / O devices 11 for inputting abnormal signals from a to 5d
And a ROM for storing the operation program of the terminal device 3 in advance
12, a RAM 13 for storing the abnormal signal and the information rewriting command, and an MPU device 14 connected to the devices 9 to 11, the ROM 12, and the RAM 13.

Further, as shown in FIG. 2, the MPU device 14 has an information input section 15 connected to the I / O device 11.
And the input information conversion unit 1 connected to the information input unit 15.
6, an abnormality detection unit 17 connected to the input information conversion unit 16, and an information output unit 1 connected to the abnormality detection unit 17.
8 and an information rewriting unit 19 connected to the I / O device 10, and the RAM 13 stores a conversion information storage unit 20 that stores an information rewriting command input via the information rewriting unit 18.
And an abnormality detection information storage unit 21 that stores abnormality detection information.

In this embodiment, security is provided for each of the security zones Z1 and Z2 in the building 6 in accordance with the procedure shown in FIG. That is, when a security start operation is performed by a security start input device (not shown) in step S1, all sensors 5a-5d are processed in step S2.
Is determined to be normal, and when the determination result is YES (when all the sensors 5a to 5d are normal), security is provided for each of the security zones Z1 and Z2. Then step S3
As an example, when the sensor 5a in the first security zone Z1 detects an abnormality and outputs an abnormality signal, the abnormality signal is input to the input device 4a, the I / O device 11, and the information input unit 15.
Are sequentially input to the input information conversion unit 16. At this time, since the information rewriting command is not stored in the conversion information storage unit 20, the abnormality signal is directly transmitted to the abnormality detection unit 17 without being converted, and the abnormality detection unit 17 outputs the abnormality signal. The abnormality information is stored in the abnormality detection information storage unit 21, and it is determined whether or not the abnormality information should be output. In step S4, the information output unit 18 outputs the abnormality information, and the abnormality information is output to the modem device 9, the NCU device 8, and the telephone line. Two
Are sequentially transmitted to the monitoring center 1. Therefore, the monitoring center 1 takes measures such as requesting a guard to be dispatched to the building 6 based on this abnormality information.

On the other hand, the determination result in the above step S2 is NO.
(When all the sensors 5a to 5d are not normal), as a step S5, it is determined whether or not some of these sensors 5a to 5d are normal, and if the determination result is NO (sensors If all of 5a to 5d are abnormal), as step S6, as in step S4,
Abnormality information is output from the information output unit 18, and this abnormality information is transmitted to the monitoring center 1 through the modem device 9, the NCU device 8 and the telephone line 2 in order.

Further, the judgment result in the above step S5 is YE.
S, for example, when only the sensor 5a is abnormal, in step S7, the information rewriting command is output from the rewriting device 7, and this information rewriting command is input to the information rewriting unit 19 via the I / O device 10. In step S8, the information rewriting unit 19 rewrites the conversion information stored in the conversion information storage unit 20 based on the information rewriting command, and the procedure S
8, the input information conversion unit 1 is based on this conversion information.
In step 6, the abnormal signal is converted into a normal signal. As a result, the above-mentioned abnormality signal becomes invalid, and the abnormality notification to the monitoring center 1 due to the output of this abnormality signal is blocked, so that it is possible to continue the security in the security zone Z2 including the remaining sensors 5c and 5d. is there. Next, in step S9, if the sensor 5c detects an abnormality and outputs an abnormality signal, for example, step S9
10, the abnormal information is output from the information output unit 18 in the same manner as in step S4, and the abnormal information is output to the modem device 9, N.
The data is transmitted to the monitoring center 1 through the CU unit 8 and the telephone line 2 in sequence.

In the embodiment configured as described above, the building 6
Of the plurality of sensors 5a to 5d provided for each of the security zones Z1 and Z2 inside the security zone Z2 including the remaining sensors 5c and 5d that operate normally even if the sensor 5a fails. You can continue to guard.

In the above embodiment, the rewriting device 7, the I / O device 10, the input information conversion unit 16, the information rewriting unit 19, and the conversion information storage unit 20 make up one of the plurality of sensors 5a to 5d. When a part fails, an information processing means for invalidating an abnormal signal output from the failed sensor is configured.

In the above embodiment, the case where the sensor 5a detects an abnormality and outputs an abnormality signal has been described as an example, but the same applies when the other sensors 5b to 5d detect an abnormality.

Further, in the above embodiment, the rewriting device 7 for outputting the information rewriting command is provided separately from the monitoring center 1, but the present invention is not limited to this, and the rewriting device for outputting the information rewriting command is provided for the monitoring center. 1 may be provided.

[0021]

Since the present invention is configured as described above, even when a part of a plurality of sensors provided for each security area in a building fails, the information processing means outputs an output from the failed sensor. Since the generated abnormal signal is invalidated, the abnormal notification to the monitoring center due to the output of this abnormal signal is prevented. Therefore, even if it is not possible to recover promptly because there is no replacement part of the broken sensor, it is possible to prevent the inside of the building from becoming completely unprotected.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a building security device of the present invention.

FIG. 2 is a diagram illustrating a terminal device included in the building security device of FIG.

3 is a flowchart showing a processing procedure of the building security device of FIG.

FIG. 4 is a block diagram showing an example of a conventional building security device.

[Explanation of symbols]

 1 Monitoring Center 2 Telephone Line 3 Terminal Device 4a-4d Input Device 5a-5d Sensor 6 Building 7 Rewriting Device 10 I / O Device 12 ROM 13 RAM 14 MPU Device 16 Input Information Conversion Unit 19 Information Rewriting Unit 20 Conversion Information Storage Unit Z1 , Z2 security area

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukie Murayama 4-1629 Nakagawa, Adachi-ku, Tokyo Hitachi Elevator Techno Service Co., Ltd.

Claims (3)

[Claims] 1. A terminal provided with a plurality of sensors for detecting an abnormality for each security area in a building, and for notifying the building to the monitoring center via a telephone line according to the output of an abnormality signal from the sensors. In the building security device in which the device is installed, when a part of the plurality of sensors fails, an information processing unit that invalidates an abnormal signal output from the failed sensor is provided. apparatus. 2. The information processing means includes a rewriting device that outputs an information rewriting command, and an input information conversion unit that converts an abnormal signal into a normal signal based on the information rewriting command, and the rewriting device has a monitoring center. The building security device according to claim 1, wherein the building security device is provided separately from the input device, and the input information conversion unit is provided in the terminal device. 3. The information processing means includes a rewriting device for outputting an information rewriting command, and an input information converting section for converting an abnormal signal into a normal signal based on the information rewriting command, and the rewriting device is provided with a monitoring center. 2. The input information conversion unit is provided in the terminal device, and the input information conversion unit is provided in the terminal device.
Building security device described.