JP3256017B2 - Detector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detector for detecting an intruder or a room.

[0002]

2. Description of the Related Art FIG. 4 shows a state in which a plurality of intrusion detection devices, for example, human body detectors 20'a to 20'd are arranged in a predetermined detection range, for example, on a wall or ceiling in a room. ing. The human body detectors 20 ′ are configured to individually detect intrusion of a human body by individually driving batteries and output an alarm signal upon detection to the center via the controller 21. The detector 20 ′ is, for example, driven by a battery, so that the work of connecting the power supply line to the human body detector 20 ′ can be omitted, and the installation can be facilitated. Further, in each of the human body detectors 20 ′, the alarm signal is connected in parallel to the signal line 22, and can be led out to the controller 21 by laying only the minimum signal line 22.

[0003]

However, according to the above configuration, when a human body is detected, an alarm output is output from any of the human body detectors 2.
It was not possible to identify whether the alarm was issued at 0 '. For this reason, the guard who rushes after the output of the alarm signal could not specify at which location the human body detector 20 ′ installed output the alarm signal. Therefore, even when a certain one of the human body detectors 20 'is in an abnormal state such as a failure, the inspection has to be performed for all the human body detectors 20', and the inspection work is troublesome.

[0004] When the human body detector 20 'senses a human body and outputs an alarm, it emits light with an LED or the like for a certain period of time. When entering, the human body detector 2
0 was detected and emitted and displayed, so that it was not possible to identify whether it detected an intruder or a guard himself.

Further, when the human body detector 20 'is illuminated and displayed by an LED or the like while outputting an alarm, when the human body detector 20' is driven by a battery, for example, the LED drive is performed. Power consumption must be reduced as much as possible.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is possible to easily specify a detector that has output an alarm signal by a simple operation and to perform the operation with low power consumption. It is intended to provide a detector.

[0007]

In order to achieve the above object, the detector according to the first aspect of the present invention comprises a storage means for holding the generation of an alarm signal and a predetermined time from the generation of the alarm signal. Timer means 5, test mode setting means 8 for setting a test mode, and, when receiving the test signal from the test mode setting means, if the alarm signal is held, whether or not the test signal is within the predetermined time period And a test result output means 7 for displaying a test result signal of the test cutting means, wherein the test cutting means sets the test mode setting means within the predetermined time. The test result signal is output in a different state between when the test signal is received and when the test signal is received after the predetermined time.

Further, the invention according to claim 2 comprises a storage means 11 for holding the generation of an alarm signal, a clock means 5 for counting a predetermined time from the generation of the alarm signal, and a test mode setting means 8 for setting a test mode. When the test signal from the test mode setting means is received, if the alarm signal is held, the test disconnection means 9 determines whether or not the test signal is within the predetermined time. Test result output means 7 for displaying a test result signal of the test means, wherein the test disconnection means receives the test signal of the test mode setting means within the predetermined time, and outputs the test result signal after the lapse of a predetermined time. Is output.

Further, the invention according to claim 3 is a storage means 11 for holding the generation of an alarm signal, a clock means 5 for counting a predetermined time from the generation of the alarm signal, and a test mode setting means 8 for setting a test mode. When the test signal from the test mode setting means is received, if the alarm signal is held, the test disconnection means 9 determines whether or not the test signal is within the predetermined time. Test result output means 7 for displaying a test result signal of the test means, wherein the test disconnection means receives the test signal of the test mode setting means within the predetermined time and the test separation means after the predetermined time. And outputting a test result signal in a state different from that when the signal is received, and outputting a test result signal after a lapse of a predetermined time if the test signal of the test mode setting means is received within the predetermined time. I do.

Further, the invention according to claim 4 is a storage means 11 for holding the generation of an alarm signal, a clock means 5 for counting a predetermined time from the generation of the alarm signal, and a test mode setting means 8 for setting a test mode. When the test signal from the test mode setting means is received, if the alarm signal is held, the test disconnection means 9 determines whether or not the test signal is within the predetermined time. Test result output means 7 for displaying a test result signal of the test means, wherein the test disconnection means outputs the test result signal only when the test mode setting means receives the test signal after the predetermined time. It is characterized by the following.

[0011]

When a guard operates the test mode setting means 8 to transmit a test signal to a detector during an rush of an alarm signal or for inspection, the test disconnecting means 9 of the detector stores the test signal in the storage means. It is determined whether there is an alarm signal of No. 11. If the detector has previously output the alarm signal, the storage unit 11 holds the previously output alarm signal for the predetermined time t1, and by applying this test signal, the signal within the predetermined time can be obtained. It is discriminated whether or not this is the case, and the test result output means 7 outputs a display or sound according to the discrimination result. On the other hand, if the alarm signal has not been output before, the signal is not output or a signal different from the signal indicating that the alarm signal is present is output.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the detector according to the present invention will be described below.
In the present invention, each of the detectors 20 is described as, for example, a detector for detecting infrared rays of a human body, and a plurality of detectors 20 are arranged in parallel with the signal line 22 as in the conventional example.
The description will be given as a configuration with reduced wiring.

FIG. 1 is a block diagram showing the electrical configuration of each detector 20. For example, infrared rays emitted from a human body are detected by a detection element 1 composed of a differential pyroelectric element, and input to a comparison circuit 3 via an amplifier 2. The comparison circuit 3 includes an upper limit comparison circuit 3a in which an upper limit is set and a lower limit comparison circuit 3b in which a lower limit is set. The input signal is equal to or more than the set value of the upper limit comparison circuit 3a, and the lower limit comparison circuit. 3b is equal to or less than the lower limit of 3b.
is generated and input to the processing means 4. Note that, as the detection element 1 for detecting a human body, a detection element having a detection principle appropriate for a situation may be used.

The processing means 4 controls the output of the alarm signal S1 to the controller 21 based on the discrimination output So and outputs the test result signal S4 to the test result output means 7 based on the test signal S3, as described later. I do.

The test result output means 7 outputs a test result signal S4
The sensor 20 is driven by receiving light, and is configured by a light emitting element such as an LED, and can be configured in various modes such as a configuration in which light emission is displayed on an outer housing side of the detector 20 and a configuration in which an acoustic member such as a speaker is used. .

FIG. 2 is a flowchart showing a control procedure of the test disconnecting means 9 in the test mode, and FIG. 3 is a timing chart of each signal output from each means. The discrimination output So is input to the discriminating means 10, and this discriminating means 10
Means that the discrimination output is performed once or plural times (for example, three times)
When it is issued, it outputs an alarm signal S1 to the test disconnection means 9.

At the same time, the alarm signal S1
Is stored in the storage means 11 as the alarm information S2 for a certain period t1 after the generation of the alarm signal S1 for a certain period t1 after the generation of the alarm signal S1, for example, for one hour after the generation of the alarm signal S1. Alarm signal S1 based on
A flag is added to the alarm information S2 indicating that a predetermined time period t0 from the generation, for example, a predetermined period from the generation of the alarm signal S1 to five minutes is within the predetermined time t0.

The detecting means 6 outputs the test signal S3 to the test disconnecting means 9 based on the test signal S3 output from the test mode setting means 8 operated by a guard or the like outside the detector 20. The detecting means 6 is provided with a light receiving section 6a, and the test mode setting means 8 has a light emitting section 8a, between which wireless transmission is performed by light such as infrared light.
By pushing an operation unit provided in the test mode setting means 8a, a test signal S3 is output to the test separation means 9 via the detection means 6.

Upon receiving the test signal S3 (SP1), the test disconnecting means 9 enters the test mode. In test mode,
The test disconnecting means 9 reads the alarm output stored in the storage means 11 (SP2), and judges whether or not there is alarm information S2 (SP3). Then, it is determined whether or not the test mode has been set after a lapse of a predetermined time t0, for example, 5 minutes after the alarm information S2 is stored (SP4). A test result signal S4a whose signal level is changed at a predetermined cycle for a predetermined time t2, for example, 10 minutes, is output to the output means 7 (SP
6).

As a result, the test result output means 7
In the case of a light emitting element such as the above, a blinking display is performed, or in the case of a speaker, a test sound is emitted at a predetermined cycle.

If the test mode is set within a predetermined time t0, for example, 5 minutes after the alarm signal is stored in the storage means 11, the test disconnection means 9 detects the infrared ray emitted from the security guard. Based on this discrimination signal (at the time of the current alarm detection), a test result signal S4b of a continuous level is output to the test result output means 7 for a predetermined time t2 (SP5).

As described above, the processing means 4 controls the driving of the test result output means 7 only in the test mode, and issues an alarm signal S1 beforehand, and within a predetermined time t0 after the alarm signal S1 is stored. The test result signal S4a or this test result signal S4a depends on whether the test mode has been set.
In order to output any one of the test result signals S4b having a signal state different from the above, when the guard rushes by the alarm signal S1 once issued, the guard sends the test mode setting means 8
By simply operating, it is possible to easily determine which detector 20 has output the alarm signal S1 based on the operation state (periodic operation) of the test result output means 7.

At the same time, based on the operating state of the test result output means 7, the operating state of each detector 20, ie,
It should output (continuously operate) whether or not a guard has been detected. If the test result output means 7 does not operate, it can be determined that the detector 20 is abnormal such as a failure.

It is desirable that the setting of the test mode for each detector 20 be performed within a predetermined time t0. That is, in the above embodiment, the storage unit 1
This is because if the test mode is not set within, for example, five minutes after the alarm information S1 by the guard is stored in 1, the alarm information detected by the guard and the alarm information by the intruder cannot be distinguished. For this reason, the length of the predetermined time t0 is set in advance to a time necessary for setting all the detectors 20 to the test mode.

Since the test result output means 7 operates only for the predetermined time t2 only when the test mode setting means 8 is operated, the driving power of the LED or speaker consumed by the test result output means 7 is reduced. Power can be saved, and the continuous operation time of the battery-driven detector 20 can be extended.

In the above embodiment, the test mode setting means 8 has been described as being constituted by, for example, a remote controller. However, the test mode setting means 8 may be constituted by a portable light. May be configured to output the test signal and enter a test mode when the light enters the test mode. further,
The detection means 6 is constituted by a reed switch, while the test mode setting means 8 is constituted by a long rod provided with a magnet at the tip,
By bringing the long rod closer to the detector 20, the reed switch can be closed and the test signal can be output to set the test mode.

In the above embodiment, when an alarm signal is stored, the alarm signal S1 is stored for a predetermined time t.
The operation state of the test result output means 7 is displayed differently depending on whether or not the test mode is set after 0. However, the test mode is set within the predetermined time t0 after the alarm signal S1 is stored. May not be displayed.

Further, in the above embodiment, when the alarm signal is stored, the operation state of the test result output means 7 depends on whether the test mode is set after a predetermined time t0 after the alarm signal S1 is stored. However, when the test mode is set before the predetermined time t0 elapses, the test result signal is not output to the test result output means 7 until the predetermined time t0 elapses, and the predetermined time t0 elapses. The operation state may be distinguished and displayed by outputting thereafter.

Thus, for example, even if a security guard enters the inspection area to enter the detection area and the detector detects the detection, if the test mode is set, the predetermined time t0 can be set to a time other than the security guard such as an intruder. Is detected, only the detector storing the abnormality information is displayed. Thereafter, after the elapse of the predetermined time t0, the detector that stores the abnormal information detected by the security guard is displayed, so that the security guard can confirm that the human body detection is performing the normal detection operation.

In this test mode in the above embodiment, infrared rays emitted from a security guard to be tested are detected by the detecting element 1.
May be detected, but after the guards have previously performed an operation to prohibit the output of the alarm signal S1 to the center in the controller 21 portion, the user may be directed to the room where the detector 20 is installed.

In the test mode, the detection of the human body of the guard detected by the detection element 1 may be prohibited from being stored in the storage means 11.

Further, in the above embodiment, the detector has been described as a human body detector for detecting a human body, but the present invention is not limited to this, and may be an ultrasonic detector, a microwave detector, a vibration detector, or the like. Further, the detector of the above-described embodiment has an LED, a speaker and the like for displaying the test result in a visible or audible manner. However, a separate test result signal is input from the detector during inspection and displayed. It may be.

[0033]

According to the present invention, after the alarm signal is output, the alarm signal is held and stored for a certain period of time, and the detector which outputs the alarm signal based on the test signal of the test mode setting means is provided. Since the test results are displayed or sound output from the test result output means, it is possible to easily specify the detector that previously output the alarm signal. Also,
The detector that stores the alarm signal and is set to the test mode within the predetermined time determines that the security guard itself has detected infrared rays, and outputs an output different from the output of the test result from the test result output means. By doing so, the normal operation itself of the detector can be confirmed at the same time.

As described above, if a different test result is output based on the presence or absence of the previous alarm signal based on the test signal of the test mode setting means, the guard can observe the output state of the test result output means. Alternatively, the state of the detector can be determined only by listening to the ear. Further, since the test result output means operates only when the test mode setting means outputs the test signal, the power consumption of the detector itself can be suppressed as much as possible, and in particular, the continuous operation time of the battery driven detector can be reduced. Can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an electrical configuration of a detector.

FIG. 2 is a flowchart showing a control procedure of a test cutting unit in a test mode.

FIG. 3 is a timing chart of each signal output from each means.

FIG. 4 is a diagram showing a state in which a plurality of detectors are arranged within a predetermined detection range.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Detection element, 4 ... Processing means, 5 ... Time measuring means, 6 ... Detecting means, 7 ... Test result output means, 8 ... Test mode setting means, 9 ... Test cutting means, 10 ... Discriminating means, 11 ... Storage means , 20 ... detector.

Continuation of front page (56) References JP-A-3-36685 (JP, A) JP-A-4-5796 (JP, A) JP-A-4-5795 (JP, A) JP-A-1-220092 (JP) , A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G08B 13/00-15/02 G08B 23/00-31/00

Claims (4)

(57) [Claims] A storage means (1) for holding generation of an alarm signal.
1), a clocking means (5) for clocking a predetermined time (to) from the generation of the alarm signal, a test mode setting means (8) for setting the test mode, and when a test signal of the test mode setting means is received, If the alarm signal is held, the test within the predetermined time
The test switching component means for determining whether the signal or not (9), and the test result output means for displaying the test result signal of the test switch component means (7), wherein the test switch component means, the predetermined time Within the test mode
When the test signal of the setting means is received and after the predetermined time.
Test result signal in a different state than when the test signal was received.
A detector characterized by outputting . 2. A storage means (1) for holding generation of an alarm signal.
1) and a timing means for timing a predetermined time (to) from the generation of the alarm signal
(5) test mode setting means (8) for setting a test mode ; and an alarm when a test signal from the test mode setting means is received.
If the signal is held, the test within the predetermined time
A test cutting means (9) for determining whether or not the signal is a signal; and a test result output for displaying a test result signal of the test cutting means.
Means (7) , wherein the test cutting means sets the test mode within the predetermined time.
After receiving the test signal from the
A detector for outputting a result signal . 3. A storage means (1) for holding the generation of an alarm signal.
1) and a timing means for timing a predetermined time (to) from the generation of the alarm signal
(5) test mode setting means (8) for setting a test mode ; and an alarm when a test signal from the test mode setting means is received.
If the signal is held, the test within the predetermined time
A test cutting means (9) for determining whether or not the signal is a signal; and a test result output for displaying a test result signal of the test cutting means.
Means (7) , wherein the test cutting means sets the test mode within the predetermined time.
When the test signal of the setting means is received and after the predetermined time.
The test results signals of different states in the case of receiving the test signal
Output the test mode setting means within the predetermined time.
If a signal is received, the test result signal is
A detector characterized by outputting . 4. A storage means (1) for holding the generation of an alarm signal.
1) and a timing means for timing a predetermined time (to) from the generation of the alarm signal
(5) test mode setting means (8) for setting a test mode ; and an alarm when a test signal from the test mode setting means is received.
If the signal is held, the test within the predetermined time
A test cutting means (9) for determining whether or not the signal is a signal; and a test result output for displaying a test result signal of the test cutting means.
Means (7) , wherein the test disconnection means sets the test mode after the predetermined time.
The test result signal is output only when the test signal of the
Detector characterized by force .