JPH10334373A - Burglar security system and terminal equipment to be used for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To construct a burglar security system by using an existent LAN. SOLUTION: Terminal equipment 1 and a receiver 2 are connected to a transmission line L of LAN. A monitor camera and a hot wire sensor are connected to the terminal equipment 1. The terminal equipment 1 is installed at any suitable position of a part to construct the relevant burglar security system, and the receiver 2 is installed in a security room. When the hot wire sensor issues an alarm, the terminal equipment 1 sends image data from the monitor camera through the LAN to the receiver 2. Therefore, at such a time, the monitor of receiver 2 displays an image at the time when the hot wire sensor issues the alarm. A control command is transmitted from the receiver 2 through the LAN and the terminal equipment 1 can be controlled as well.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security system for security with a surveillance camera and / or security sensor and a terminal device used for the security system.

[0002]

2. Description of the Related Art In recent years,
Buildings such as department stores and large-scale buildings are often provided with a security security system that performs security with surveillance cameras and security sensors. In such a security system, a security room is provided at a predetermined location of the building, and monitoring of images from the monitoring camera is monitored by a monitor disposed in the security room, and a signal output from a security sensor is provided. Is usually received by a receiver located in a security room. As the security sensor, a heat ray sensor for detecting an intruder, a magnet switch for detecting that a window is opened, and the like are used.

[0003] Therefore, for example, when a security system using a surveillance camera and a security sensor is to be constructed,
It is necessary to lay a cable for transmitting video signals between the surveillance camera and the monitor in the security room, and to transmit the output signal from the security sensor between the security sensor and the receiver in the security room. It is necessary to lay the signal line of, but if you try to build a security system using a surveillance camera and security sensors in an existing building, the cable for video signal transmission and the output signal from the security sensor will be transmitted. In order to do so, a new signal line had to be laid, which was not only large-scale, but also costly.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to make it possible to easily and inexpensively construct a security system using a computer network such as an existing LAN.

[0005]

In order to achieve the above object, a security system according to the present invention can be connected to a computer network and can receive images from a surveillance camera. A terminal device for transmitting data and / or sensor information relating to a security sensor to a computer network; a computer network; and image data and / or security data connected to the computer network and transmitted from the terminal device via the computer network. A receiving device that performs at least a process of receiving sensor information related to the sensor. Here, a local area network can be used as the computer network.

The terminal device used in the security system according to the present invention can be connected to a computer network, and image data from a surveillance camera and / or sensor information on a security sensor. Is transmitted to a computer network.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. Hereinafter, a case where a heat ray sensor is used as a security sensor will be described. Then, when the hot-wire sensor detects an intruder, it is called an alert,
The signal output at that time is called an alarm signal.

FIG. 1 is a diagram showing an embodiment of a security system according to the present invention. In the figure, 1 indicates a terminal device, 2 indicates a receiving device, and L indicates a transmission path.

The transmission line L may be a transmission line of a computer network already constructed in a building in which the security system is constructed, but here is a transmission line of a local area network (hereinafter, referred to as LAN). And A server as a host, a personal computer, a workstation, or the like is connected to the LAN transmission device L, but is omitted in FIG.

The terminal device 1 is installed at an appropriate place in the building and is connected to a LAN transmission line L.
The terminal device 1 is connected with a monitoring camera and a heat ray sensor. The terminal device 1 is assigned an IP address in advance.

The receiving device 2 is installed in a security room provided at a predetermined place of the building, and is connected to the transmission line L of the LAN. Therefore, it can be said that the terminal device 1 and the receiving device 2 are connected by the LAN built in the building. Although only two terminal devices 1 are shown in FIG. 1, these are representatively shown to avoid complicating the drawing, and the terminal device 1 may Naturally, it is possible to connect a number of units.

FIG. 2 is a diagram showing a configuration example of the terminal device 1 and FIG.
Is a diagram showing a configuration example of the receiving device 2, 10 is a control unit,
11 is an image processing unit, 12 is a multiplexing unit, 13 is a line control unit, 14 is a transmission unit, 15 is a reception unit, 20 is a line control unit,
21 is a receiving unit, 22 is a transmitting unit, 23 is a signal separating unit, 24
Denotes a control unit, 25 denotes an input unit, 26 denotes a monitor, and 27 denotes an image processing unit.

First, an example of the operation of the terminal device 1 will be described. A video signal from a surveillance camera (not shown) is supplied to a multiplexing unit 12 after being subjected to predetermined processing such as digitization and data compression in an image processing unit 11, and is supplied to a multiplexing unit 12 from a heat ray sensor (not shown). The alarm signal is supplied to the control unit 10. Since the image processing in the image processing unit 11 is well known, the description is omitted. In general, a plurality of monitoring cameras and heat ray sensors are connected to one terminal device 1, but in the figure, one monitoring camera and one heat ray sensor are respectively connected for easy understanding. It is assumed.

When the control unit 10 receives an alarm signal from the hot-wire sensor during security, it generates data indicating that the hot-wire sensor has issued an alarm (hereinafter, this data is referred to as sensor data). Then, the sensor data is sent to the multiplexing unit 12 with the IP address assigned to the terminal device 1 attached thereto.

Upon receiving the sensor data and the IP address from the control unit 10, the multiplexing unit 12 multiplexes the image data, the sensor data, and the IP address input at that time. Since various methods for multiplexing and transmitting such image data and other data are known, detailed description thereof will be omitted. For example, compressed digital image data is appropriately added together with sensor data and IP address. It is sufficient to adopt a technique of transmitting the packet as a packet of any form.

The control unit 10 gives the IP address of the receiving device 2 to the transmission unit 14 of the line control unit 13 which sends out data to the transmission line L and receives data from the transmission line L, Instructs data transmission. by this,
The transmitting unit 14 transmits the image data, the sensor data, and the IP address when the hot-wire sensor has issued the alarm to the receiving device 2 to the transmission line L.

Next, the operation of the receiving device 2 will be described. The receiving device 2 includes a line control unit 20 that transmits data to the transmission line L and receives data from the transmission line L. When the receiving section 21 of the line control section 20 recognizes that the destination IP address attached to the received data is its own IP address, it receives the data. The data received by the receiving unit 20 is input to the signal separating unit 23 and separated into image data and other data. The image data is subjected to predetermined processing such as data decompression by the image processing unit 27. It is supplied to the monitor 26. The sensor data, which is data other than the image data, and the source IP address are supplied to the control unit 24.

When the control unit 24 receives the sensor data and the IP address, it recognizes the location where the hot-wire sensor of the terminal device 1 has issued an alert, and outputs a character signal indicating the location where the terminal device 1 is installed. Is supplied to the monitor 26. Thus, the image captured by the monitoring camera and the character signal indicating the installation location of the terminal device 1 are displayed on the monitor 26 in a superimposed manner.

As a method for determining the installation location of the terminal device 1 from the received transmission source IP address, for example, a table in which the IP address of the terminal device 1 is associated with the installation location is written. If the IP address is supplied from the signal separation unit 23 in advance in the control unit 24, the installation location of the terminal device 1 to which the IP address is assigned may be recognized by referring to the table.

In the above, the operation in the case where the hot-wire sensor of the terminal device 1 emits an alarm when the security is performed has been described. Next, the operation in the case where the terminal device 1 is controlled from the receiving device 2 will be described. I do. Here, a case where the receiving device 2 requests the terminal device 1 to transmit image data will be described as an example.

As shown in FIG. 3, the receiving device 2 is provided with an input unit 25 composed of a keyboard or the like. Therefore, when controlling the terminal device 1, the input unit 25
Is operated to set the IP address of the terminal device 1 to be controlled and the content of the control.

When the control section 24 receives the control information set by the input section 25, it gives the transmission section 22 the data on the contents of the control and the IP address of the terminal device 1 of the other party. As a result, the transmission unit 22 sends out control information set to the terminal device 1 having the given IP address, in this case, an instruction to send out image data.

At this time, when the receiving unit 15 of the terminal device 1, which is the destination, recognizes that the IP address of the destination attached to the received data is its own IP address, it receives the data and receives the received data. Is passed to the control unit 10.

When the control unit 10 decodes the data received from the receiving unit 15 and recognizes that it is a command to send image data, the control unit 10 attaches the IP address assigned to the terminal device 1 and sends it to the multiplexing unit 12. . Upon receiving the IP address from the control unit 10, the multiplexing unit 12 multiplexes the image data and the IP address input from the monitoring camera at that time and outputs the multiplexed data. The data output from the multiplexing unit 12 is transmitted to the transmitting unit 1
However, since the transmission unit 14 is provided with the IP address of the receiving device 2 which is the destination from the control unit 10, the image data and the IP address indicating the transmission source are transmitted to the transmission unit 1.
4 to the receiving device 2.

As is clear from the above description, the terminal device 1 and the receiving device 2 need only be connected to an existing LAN or other computer network, and can be easily installed and expanded. It is possible to construct a two-way security system using a surveillance camera and a heat ray sensor at low cost.

As described above, one embodiment of the present invention has been described. However, the present invention is not limited to the above embodiment, and various modifications are possible. For example, in the above description, the surveillance camera and the heat ray sensor are connected to the terminal device 1. However, a microphone or the like can be connected.
It is also possible to use a security sensor other than the heat ray sensor.

[Brief description of the drawings]

FIG. 1 is a diagram showing one embodiment of a security security system according to the present invention.

FIG. 2 is a diagram illustrating a configuration example of a terminal device 1 of FIG. 1;

FIG. 3 is a diagram illustrating a configuration example of a data processing device 2 of FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Terminal device, 2 ... Receiving device, 10 ... Control part, 11 ... Image processing part, 12 ... Multiplexing part, 13 ... Line control part, 14 ...
Transmitting unit, 15 receiving unit, 20 line control unit, 21 receiving unit, 22 transmitting unit, 23 signal separating unit, 24 control unit,
25 input unit, 26 monitor, 27 image processing unit, L
LAN transmission path.

Claims (3)

[Claims] 1. A terminal which is connectable to a computer network and performs processing for transmitting image data from a surveillance camera and / or sensor information relating to a security sensor to the computer network, a computer network, and a connection to the computer network. And a receiving device that performs at least a process of receiving image data and / or sensor information relating to the security sensor transmitted from the terminal device via a computer network. 2. The security system according to claim 1, wherein the computer network is a local area network. 3. A terminal device for use in a security system, wherein the terminal device can be connected to a computer network and performs processing for transmitting image data from a surveillance camera and / or sensor information relating to a security sensor to the computer network. .