JPH08329359A - Crime prevention transmitter and crime prevention information system - Google Patents

Abstract

PURPOSE: To easily and securely grasp the state of a warning destination on the side of a center device by storing an image picked up by a monitor camera and a speech picked up by a microphone when a crime prevention sensor operates while a watch state is set. CONSTITUTION: When the crime prevention sensor 23 outputs an alarm signal while the watch state is set, a control part 37 stores an image signal and a speech signal in an image memory 33 and a speech memory 34 respectively and dials the telephone number of the center device. Once the center device is engaged with a line, the data are read out of the image memory 33 and speech memory 34 automatically and sent to the center device under the command of the center device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crime prevention transmitter for notifying that an abnormal situation has occurred when a crime prevention sensor operates in a state where a warning state is set, and a crime prevention notification system using the same.

[0002]

2. Description of the Related Art In recent years, a crime prevention reporting system equipped with a surveillance camera has been actively developed. FIG. 2 shows an example of the configuration of a crime prevention warning system constructed using such a crime prevention notification system.

In FIG. 2, 1 is a building, 2 is a surveillance camera, 3 is a sensor section, 4 is a camera section, 5 is a control section, 6 is a security transmitter, and 7 is a general public line (hereinafter, simply referred to as a public line). , 8 and 9 are exchanges, 10 is a center device, 11 is a receiving unit, 12 is a display control unit, 13 is a monitor, and 14 is a display unit.

Surveillance cameras 2 are installed at various places in the building 1 to be monitored. The surveillance camera 2 includes a sensor unit 3, a camera unit 4, and a control unit 5. The sensor unit 3 is composed of a crime prevention sensor such as a heat ray sensor and outputs an alarm signal indicating the occurrence of an abnormal situation when a predetermined abnormality is detected. For example, in the case of a heat ray sensor, an alarm signal is output when a change in heat ray is detected.

The camera section 4 is composed of a CCD image pickup device, and is supposed to convert an analog video signal into digital image data (hereinafter simply referred to as image data) and output it.

When the sensor unit 3 is activated and an alarm signal is output, the control unit 5 determines that there is an intruder, and sends the alarm signal and the image data from the camera unit 4 to the crime prevention transmitter 6
Send to.

The crime prevention transmitter 6 is installed at a predetermined location such as a monitoring center of the building 1, and can be set in two states, a warning state and a warning released state,
When the alarm signal and the image data are transmitted from the surveillance camera 2 in the alert state, the identification number assigned to itself and the identification number of the surveillance camera that has transmitted the alarm signal are attached to indicate that an abnormality has occurred. The abnormal data shown and the image data sent from the surveillance camera 2 are sent to the center device 10. Although only one surveillance camera 2 is connected to the security transmitter 6 in FIG. 2, one surveillance camera 2 is provided in order to avoid making the figure complicated.
The security transmitter 6 can be connected to a plurality of surveillance cameras, as a matter of course.

These signals transmitted from the security transmitter 6 are transmitted to the nearest exchange 8 via the public line 7,
From there, it is further transmitted via the public line 7 to the switching center 9 closest to the center device 10 and then to the center device 10. The public line 7 may be any line capable of transmitting image data, and for example, a general subscriber telephone line or a digital line such as ISDN can be used.

The center device 10 is installed in a security company or the like that has been entrusted with the security of the building 1, and includes a receiver 11, a display controller 12, and a monitor 13.

The receiving unit 11 is for receiving abnormal data and image data, and performs a predetermined process such as demodulation of image data and sends it to the display control unit 12.

The display unit 14 is, for example, a panel on which a layout of the surveillance camera 2 is drawn.
A display element such as a lamp or an LED is attached to the place where is arranged. The display unit 14 may be configured by a CRT, and information such as the name of the building in which the abnormality has occurred and the installation position of the surveillance camera that has detected the abnormality may be displayed in characters. Here, the former configuration is assumed.

When the display controller 12 receives the abnormal data and the image data, the display controller 12 sends the image data to the monitor 13 to display the image, and the monitoring camera 2 which sent the abnormal data in the display element of the display unit 14 sends the abnormal data. The processing for turning on the corresponding display element is performed.

Although only one monitor 13 is connected to the display control unit 12 in FIG. 2, this is for avoiding complication of the drawing.
Of course, multiple monitors can be connected. Further, receivers of a plurality of buildings are connected to the center device 10 via the public line 7.

According to the above system, when the security transmitter 6 of the building 1 operates in the state where the security transmitter 6 is set to the warning state, the abnormal data and the image data at that time are displayed as the security transmitter of the building 1. 6 is transmitted to the center apparatus 10 via the public line 7, the abnormality occurrence is displayed on the display unit 14 and the image at that time is displayed on the monitor 13, so that the supervisor of the center apparatus 10 displays the monitor 13. By monitoring the parts 14 and 14, it is possible to know in which part of which building the abnormality has occurred.

[0015]

However, in the system shown in FIG. 2, there is a case where it is not clear whether or not an abnormal situation actually occurs even when the monitor 13 is monitored on the side of the center device 10. .

One of the causes is malfunction of the sensor unit 3. That is, when the sensor unit 3 is a heat ray sensor, since the heat ray sensor detects a change, an alarm signal may be output even when the temperature in the field of view of the sensor unit 3 changes for some reason. Is well known, and when the sensor unit 3 causes such a malfunction, not only is the public line 7 wastefully used for a long time, but also in such a case, the monitor 13 is used. In most cases, the image displayed in will not change, so
It is not possible to clearly identify whether or not an abnormal situation has actually occurred, and therefore the supervisor of the center device 10 must pay attention to the monitor 13 to see what abnormality has occurred, which is a great burden. There was a problem.

As another cause, it takes 20 hours after the sensor section 3 is activated until the line between the crime prevention transmitter 6 and the center apparatus 10 is connected and an image is displayed on the monitor 13.
Since it takes about 30 seconds to 30 seconds, even if the sensor unit 3 actually detects the intruder, the intruder can see from the field of view of the camera unit 6 before the line is connected to the center device 10. There is a case in which the monitor 13 of the center device 10 does not come off and no abnormality is observed.

That is, when an abnormality occurs in the state where the warning state is set, the crime prevention transmitter 6 causes the center device 10 to operate.
It tries to send an alarm signal and the image data from the camera unit 4 by automatically dialing the telephone number of, but until the center device 10 captures the line and an image is displayed on the monitor 13 It takes about 30 seconds, and the image during this period is not displayed on the monitor 13.

Therefore, even if the sensor unit 3 actually detects an intruder, the line with the center unit 10 is captured, and the intruder is detected by the camera until the image from the camera unit 4 is displayed on the monitor 13. If it goes out of the field of view of the unit 4, there is a problem that the intruder cannot be confirmed on the monitor 13 and the intruder may be missed.

The present invention is to solve the above-mentioned problems, and when a security sensor operates in a state where a caution state is set, a security transmission capable of storing the image and sound at that time The purpose is to provide an aircraft and a crime prevention notification system.

[0021]

In order to achieve the above object, the crime prevention transmitter according to claim 1 is connectable with a crime prevention sensor, a surveillance camera, a microphone and the like, and is an image output from the surveillance camera. It is characterized by including a first memory for storing a signal and a second memory for storing an audio signal output from a microphone.

The crime prevention reporting system according to a second aspect of the invention is a crime prevention reporting system including a crime prevention sensor, a surveillance camera, a microphone, and a crime prevention transmitter, wherein the crime prevention transmitter has a first memory and a second memory. And a memory for storing the image signal output from the surveillance camera in the first memory when the security sensor is activated in the state of being set to the alert state, and storing the audio signal output from the microphone in the second memory. And a control means for storing in

[0023]

First, the security transmitter according to claim 1 is as follows. This security transmitter is connectable with a security sensor, a surveillance camera, a microphone, and the like, and is provided with a first memory and a second memory.

The first memory is used to store the image signal output from the surveillance camera, and the second memory is used.
The memory of is used to store the audio signal output from the microphone.

It is very significant to store the image and sound when the security sensor operates in this way. Because the surveillance camera is usually oriented in the direction in which an intruder is likely to invade, the surveillance camera is likely to catch the intruder when the security sensor is activated, and actually This is because when there is an intruder, it is normal for the intruder to speak or make some noise.

Therefore, according to the configuration of this crime prevention transmitter,
Since the image from the surveillance camera and the sound from the microphone when the security sensor is activated can be stored, the image signal read from the first memory and the sound signal read from the second memory can be stored. If it is transmitted to the center device side, it is possible to easily and surely grasp whether or not there is an intruder by observing the image and sound when the security sensor is activated on the center device side. Thus, it helps to build a highly reliable crime prevention warning system.

Next, the crime prevention reporting system according to claim 2 is as follows. This crime prevention reporting system includes a crime prevention sensor, a surveillance camera, a microphone, and a crime prevention transmitter.

The security transmitter includes a first memory,
The second memory and the image signal output from the surveillance camera when the security sensor is activated in the state of being set to the alert state are stored in the first memory, and the audio signal output from the microphone is stored in the second memory. Control means for storing in the memory.

According to the above configuration, when the security sensor operates in the state where the warning state is set, the image signal from the surveillance camera at that time is stored in the first memory,
Since the audio signals from the microphones are stored in the second memory respectively, if the image signals read from the first memory and the audio signals read from the second memory are transmitted to the center device side, By observing the image and voice when the security sensor is activated on the side of the center device, it is possible to easily and surely know whether or not there was an intruder, and thus a highly reliable security alarm system is provided. It helps to build.

The usefulness of storing the image and the sound when the security sensor operates in the state where the warning state is set is as described above.

[0031]

Embodiments will be described below with reference to the drawings.
FIG. 1 is a diagram showing an example of the configuration of a crime prevention transmitter and a crime prevention notification system according to the present invention, in which 21 is a surveillance camera, 2
2 is a microphone, 23 is a security sensor, 30 is a security transmitter, 3
1 is an image processing unit, 32 is a voice processing unit, 33 is an image memory, 34 is a voice memory, 35 is an encoder, 36 is a modem, 37 is a control unit, and 38 is a public line.

A surveillance camera 21, a microphone 22 and a crime prevention sensor 23 are installed at various places such as office buildings to be monitored. Here, the security sensor 23 is assumed to be a heat ray sensor, but it goes without saying that it may be a magnet sensor or the like.

Although the monitoring camera 21, the microphone 22 and the security sensor 23 are shown as separate components in FIG. 1, as shown in FIG. 2, the monitoring camera 21 and the security sensor 23 are shown separately.
The monitoring camera 21, the microphone 22, and the crime prevention sensor 23 may be integrated.

In FIG. 1, only one surveillance camera 21, one microphone 22 and one security sensor 23 are shown, but this is merely to prevent the figure from becoming complicated, and the security transmitter 30 is provided. It goes without saying that a plurality of surveillance cameras 21, microphones 22 and crime prevention sensors 23 can be connected to each other.

The crime prevention transmitter 30 is installed at a predetermined position of the place to be monitored, and the image processing unit 3
1, audio processing unit 32, image memory 33, audio memory 3
4, an encoder 35, a modem 36, and a controller 37.

The image signal output from the monitoring camera 21 is subjected to predetermined processing such as digitization in the image processing section 31, and is supplied to the image memory 33 and the encoder 35.
Similarly, the audio signal output from the microphone 22 is subjected to predetermined processing such as digitization in the audio processing unit 32 and supplied to the audio memory 34 and the encoder 35.

Here, the image memory 33 and the voice memory 34
It is natural that the larger the capacity, the more desirable it is, but the image of the time from the control unit 37 automatically dialing the telephone number of the center device (not shown in FIG. 1) until the center device captures the line. It is desirable to have a capacity that can store signals and audio signals. Therefore, as the image memory 33 and the audio signal 34, it is preferable to use a large-capacity storage device such as a hard disk device. If a large capacity hard disk cannot be installed, IC memory or I
A C card or the like may be used.

The encoder 35 performs predetermined processing such as encoding and data compression necessary for transmitting the image signal and the audio signal from the modem 36.

The modem 36 performs a process of transmitting an image signal and an audio signal to the center device via the public line 38, and a process of receiving a command transmitted from the center device. Since a known method can be adopted as the transmission method for transmitting the image signal and the audio signal via the public line, detailed description of the transmission method will be omitted.

The control unit 37 centrally manages the operation of the crime prevention transmitter 30, and is composed of a microprocessor and its peripheral circuits. Further, the control unit 37 can be set to two states, a warning state and a warning canceling state, by an input device (not shown).

Next, the operation of the security transmitter 30 will be described. Surveillance camera 21, microphone 22, and security sensor 23
Is always on. Therefore, the surveillance camera 21 constantly outputs an image signal, the microphone 22 constantly outputs a voice signal, and the security sensor 23 operates by detecting a change in heat rays and outputs an alarm signal, but the control unit 37 warns. When the release state is set, the crime prevention sensor 23
Even if an alarm signal is output from the device, it is ignored and the modem 36 is not instructed to transmit the image signal and the audio signal to the center device. Therefore, the image signal and the audio signal are not transmitted to the center device.

However, when an alarm signal is output from the security sensor 23 when the warning state is set, the control unit 37 causes the image memory 33 and the audio memory 34 to store the image signal and the audio signal, respectively, and Dial the telephone number of the center device. As a result, the image memory 33 and the audio memory 34 store the image signal and the audio signal respectively for a predetermined time.

When the center device seizes the line, the control section 37 transmits an image signal and an audio signal following the identification number assigned to itself and the identification number of the surveillance camera that has sent the alarm signal. Sometimes a method of transmitting a real-time image signal from the surveillance camera 21 and a real-time audio signal from the microphone 22, and first, reading out the image signal and the audio signal when the security sensor 23 is activated from the image memory 33 and the audio memory 34. There are two methods of encoding with the encoder 35 and transmitting, and which method is adopted is arbitrary.

In the former method, a real-time image and voice are first transmitted to the center device. However, when it is desired to observe the image and voice when the security sensor 23 is activated on the side of the center device. A command for instructing to read and transmit the image signal and the voice signal from the image memory 33 and the voice memory 34 may be transmitted from the center device side to the crime prevention transmitter 30.

In the latter method, the image and voice when the security sensor 23 is activated are first transmitted to the center device, and all the image signals and voice signals stored in the image memory 33 and the voice memory 34 are stored. After being transmitted, the real-time image and voice, that is, the image signal output from the monitoring camera 21 at that time and the voice signal output from the microphone 22 are transmitted.

According to the above operation, the image and the sound when the security sensor 23 is activated when the warning state is set are stored and transmitted to the center device. Then, by observing the image and the sound, the situation of the alert destination can be easily and surely grasped.

It should be noted that how to use the image signal and the audio signal received on the side of the center device is arbitrary. For example, it goes without saying that the received image signal is displayed on the monitor and the audio signal is output from the speaker, but it is also possible to store and save all the received image signals and audio signals.

Although the embodiments of the present invention have been described above, it is apparent to those skilled in the art that the present invention is not limited to the above embodiments and various modifications can be made.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration example of a crime prevention transmitter and a crime prevention notification system according to the present invention.

FIG. 2 is a diagram showing an example of the configuration of a crime prevention warning system constructed using a crime prevention notification system including a surveillance camera.

[Explanation of symbols]

1 ... Building, 2 ... Surveillance camera, 3 ... Sensor part, 4 ... Camera part, 5 ... Control part, 6 ... Security transmitter, 7 ... General public line,
8, 9 ... Exchange station, 10 ... Center device, 11 ... Reception unit,
12 ... Display control unit, 13 ... Monitor, 14 ... Display unit, 21
... surveillance camera, 22 ... microphone, 23 ... crime prevention sensor, 30
... crime prevention transmitter, 31 ... image processing unit, 32 ... audio processing unit,
33 ... Image memory, 34 ... Voice memory, 35 ... Encoder, 36 ... Modem, 37 Control unit, 38 ... Public line.

Claims (2)

[Claims] 1. A security sensor, a surveillance camera, a microphone and the like are connectable, and a first memory for storing an image signal output from the surveillance camera and a second memory for storing an audio signal output from the microphone. A security transmitter, comprising: a memory. 2. A security sensor, a surveillance camera, a microphone,
In a crime prevention notification system including a crime prevention transmitter, the crime prevention transmitter outputs from the surveillance camera when the crime prevention sensor operates in the state where the first memory, the second memory, and the warning state are set. A crime prevention notification system, comprising: a control unit that stores an image signal in a first memory and a voice signal output from a microphone in a second memory.