JP2002183852A - Security system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a security system capable of quickly performing security management of an object to be guarded (e.g. buildings such as a detached house, an apartment) as the Internet. SOLUTION: The security institution 30 connects security devices 19 installed in a house 11, respective houses 13a, 13b of the apartment building 13 and a store 15 as objects to be guarded to a communication network 17 which is a CATV communication network. When the abnormal condition is detected by an abnormality detecting sensor such as a bathroom sensor constituting the security device 19, the security device 19 transmits a security signal to the security institution 30 through the communication network 17. A monitoring part 25 of a center unit 20 monitors the operating condition of the security device 19 through the communication network 17.

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 managing the safety of various buildings such as detached houses and condominiums.

[0002]

2. Description of the Related Art Conventionally, for example, a fire alarm, a gas leak detector, a crime prevention system, etc. for performing security management (security) in a building such as a detached house or a condominium. A sensor and the like (hereinafter, these are collectively referred to as “abnormality detection sensor”) are installed. When the abnormality detection sensor detects a predetermined abnormal state (for example, in the case of a gas leak detector, a gas leak state), the abnormality detection sensor emits a predetermined detection sound to notify the occupant of the abnormal state. To inform.

[0003] Further, by installing control means for receiving a security signal generated by the abnormality detection sensor installed in the building, the control means can detect an abnormal state detected by the abnormality detection sensor by using an automatic dial function. It is also possible to build a security system that reports to security agencies via a line.

[0004]

However, the abnormality detection means is installed on the premise that the resident is at home in the building and notices the detection sound. If these conditions are not satisfied, There was a problem that it did not function as building safety management.

[0005] Further, if a security system for notifying the security organization via the telephone line from the control means is constructed, the above-mentioned problem is solved, but the telephone line is DT.
Since the analog signal is transmitted and received based on the MF (Dual tone multiple frequency) method, there is a problem that it takes time from when the control unit issues a security signal to when the security agency receives the signal. Further, when transmitting image information acquired by an image acquisition device (for example, a CCD camera or the like) installed in a building to a security agency, the security agency takes a long time to transmit the image information over the telephone line, so Image information could not be obtained.

[0006] The present invention has been made in view of the problems existing in such conventional technology, and has as its object to effectively utilize a communication infrastructure (infrastructure) such as the Internet to provide a security agency. It is an object of the present invention to provide a security system capable of quickly performing security management of a security target (for example, a building such as a detached house or an apartment).

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a security device installed corresponding to a security object, monitoring means for monitoring an operation state of the security device, A communication network for transmitting security information generated by the device and monitoring information generated by the monitoring means to a device installed in a security agency, wherein the security device can transmit the security information in a TCP / IP format; Control means for converting the information into information is provided.

[0008] The security device includes an image acquisition device, and uses the image information acquired by the image acquisition device via the communication network as the security information to a device installed in the security agency. Transmission is possible.

Further, the security device is configured to include a detecting means for detecting the movement of a person from the acquired image information, and the detection result of the detecting means via the communication network is previously determined as an abnormal state. The security information can be transmitted to the equipment installed in the security agency only when the security information corresponds to the set detection result.

[0010] The monitoring means may provide the monitoring information to the equipment installed in the security agency only when the security information corresponds to an operation state set as an abnormal state in advance among the operation states of the security device via the communication network. Can be transmitted.

Further, the security device is provided with an encrypting means for encrypting the security information and outputting the encrypted security information to the communication network, and transmits the security information to a device installed in the security agency via the communication network. Decoding means for decoding the security information thus obtained.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described as an always-connected Internet environment, for example, CATV (cable telev).
An embodiment embodied in a security system constructed using a communication network will be described with reference to FIGS.

FIG. 1 schematically shows a security system 10 according to this embodiment.
There are a large number of residential facilities such as condominiums 13 and 14 and a number of business facilities such as stores 15 with a public road R interposed therebetween. A communication network 17 is formed in these dwelling facilities and business facilities by laying a communication cable 16 in order to view a broadcast on a cable television (cable television). Is transmitted to each facility.
In recent years, with the spread of the Internet, personal computers (hereinafter referred to as "PCs")
That. ), Various services such as Internet information search and Internet shopping can be used through the communication network 17. As the communication cable 16, a coaxial cable or an optical fiber cable that enables transmission of television information and transmission of information such as the Internet is used.

As shown in FIG. 1 as a representative of each house 13a, 13b of the house 11 and the condominium 13 and each building such as the store 15, each building has a security device for performing security management (security) of the building. A security device 19 is installed. The security device 19 is arbitrarily installed in each of the buildings, and does not need to be installed in all of the buildings to which the communication cable 16 is connected without omission. In the present embodiment, the house 11 in which the security device 19 is installed,
Each door 13a and 13b of the apartment 13 and the store 15 are the security targets of the security agency 30. Further, in addition to the security equipment 19, as shown in FIG. 2, the building 11 includes a television (TV) T, a telephone TL, and a CCD camera (hereinafter, referred to as an image acquisition device). "Camera".) C and PC
Various devices such as are installed arbitrarily.

Various devices such as the security device 19 installed in each of the houses 11 and the apartments 13 a and 13 b and the store 15 are connected to the communication network 17. The communication network 17 includes, for example, CA
A center device 20 installed in a management company that manages a TV communication network is connected. And the center device 2
0, the inside (the house 11, the condominium 13, or the store 15 side) of the communication network 17 and the outside (the communication institution 27 described later).
Network management, such as transmission and reception of data to and from the security agency 30).

Next, the center device 20 will be described. The center device 20 comprises an LCU 21, a DSU
22, a router 23, a firewall 24, a monitoring unit 25 as monitoring means, and a UPS 26.

The LCU 21 encrypts various information as a line control device and
The information is transmitted to various devices such as a personal computer and a personal computer, and the usage state on the communication network 17 is monitored so that various information is not leaked. The DSU 22 functions as a line termination device for a digital line, and the router 23 functions as a device for interconnecting the communication network 17 and an external communication network. Further, the firewall 24 functions as a device for preventing unauthorized entry into the communication network 17. Then, the monitoring unit 25 constantly monitors the operation state (that is, the normal operation state or the abnormal operation state) of the security device 19 installed in each building. Also,
The UPS 26 is an uninterruptible power supply, and reserves a backup power so that the center device 20 does not stop immediately even if the power supply is cut off due to an unexpected accident.

The DSU 22 constituting the center device 20 is provided with a communication organization 27 (for example, NTT).
Provided by the optical communication line 28 (in this embodiment, the communication speed 1.
5Mbps, 23 times faster than the ISDN line). Therefore, for example, the inhabitants of the house 11
The personal computer PC is connected to the Internet via the center device 20, and can transmit and receive a large amount of information by high-speed communication. Further, a device (a personal computer 31 shown in FIG. 2) installed in a security agency 30 is connected to the monitoring unit 25 constituting the center device 20 via a digital dedicated line 29. Various services such as dispatch of a security guard at the security agency 30 are available for 24 hours.

Next, the connection between the house 11 and the devices provided in the center device 20 will be described in more detail with reference to FIG. In addition, each house 13a, 1 of the said apartment 13
3b and the store 15 have the same configuration as the house 11.

First, in the house 11, information transmitted from the communication cable 16 is transmitted to the television T or a personal computer PC.
Distributors 35 are provided for each distribution to the sides. The distributor 35 is connected to a cable modem 36 for transmitting and receiving information by connecting a computer such as a personal computer to a communication line. A hub 37 is connected to the modem 36, and a personal computer PC is connected to the hub 37.
Side, camera C side, telephone TL side and security device 19
The connection lines are branched on the sides. The hub 37 has a personal computer PC,
Camera C and telephone TL are connected.

Further, the hub 37 is connected to a control device 39 as control means constituting the security device 19. Note that the security device 19 is shown in FIG.
Is a portion surrounded by a broken line of the security device 19.
In the event of an emergency, a wireless emergency button 40 for notifying the security agency 30 of an emergency, and a special security control (for example, fire) which is installed at a predetermined position (for example, kitchen, bathroom, entrance, etc.) of the house 11 and is separately provided , Gas leakage, illegal intrusion, etc.). The security device 19 includes a control device 3 for controlling the emergency button 40 and the abnormality detection sensor 41.
9 are provided. In the present embodiment, a bathroom sensor for detecting the movement of a person from the image information acquired as the abnormality detection sensor 41 is provided in the bathroom.
Then, the algorithm of the bathroom sensor divides the detection area of the built-in CCD camera into several tens of areas (for example, 60 areas) and, based on a temporal change in brightness and color extracted from each area, changes in each area. The presence or absence of a movement is detected, and the movement of a person is determined from the number of regions of the movement or a temporal change.

The control device 39 is provided with the emergency button 4
There is provided a control unit 39a which receives a security signal as security information issued by 0 or the abnormality detection sensor 41 and performs predetermined control based on the signal. That is, the control unit 39a
The security signal issued by pressing the emergency button 40,
Alternatively, the security signal generated by the abnormality detection sensor 41 based on the detection of the abnormal state is converted into a protocol security signal that can be transmitted through the communication network 17. Further, an encryption unit 39b as an encryption unit is connected to the control unit 39a.
The security signal converted by 9a is encrypted. Then, the encrypted security signal is transmitted to the communication network 17 via the hub 37, the modem 36 and the distributor 35. Further, the controller 39 is connected to a telephone line 43 provided by a telephone office TC via a security device 42. When the emergency button 40 is pressed, the controller 39 is used to A call can be made between the eleven residents and the guards of the security agency 30.

Further, various devices connected to the communication network 17, ie, a personal computer PC, a camera C, a telephone TL, and a security device 19 (the emergency button 40 and the abnormality detection sensor 4)
In 1), a dedicated IP address is separately assigned to each.
Therefore, a common platform is constructed for the various devices, and information in the various devices can be easily digitized. The security device 19 (control device 39) connects to the communication network 17 based on the IP address and transmits the security signal.

On the other hand, the center device 20 is connected to the DSU2
2 is connected to an optical communication line 28 provided by a communication organization 27, and the DSU 22 is connected to a hub 44 via a router 23 and a firewall 24. Also,
Connection lines are branched from the hub 44 to the communication cable 16, the monitoring unit 25 side, and the security device 19 side. That is, the hub 44 has the LCU 21 and the LC
The communication cable 16 is connected via a modulator 45 that converts a signal from U21 into a signal for the communication network 17. A network management personal computer 46 is connected to the LCU 21 via a hub 44, so that various settings and an error display on the LCU 21 are performed.

Further, the hub 44 is provided with the house 11
A security device 19 similar to the above is connected, and the security device 19 performs safety management of the building in which the center device 20 is installed (for example, a management company of a CATV communication network). That is, the security device 19 includes the control device 39 (the control unit 39a and the encryption unit 39b), the emergency button 40, and the abnormality detection sensor 4
1 is provided. In the present embodiment, for example, a security sensor or the like is installed as the abnormality detection sensor 41 configuring the security device 19 of the center device 20.

The hub 44 is connected to a router 47 constituting the monitoring unit 25. The monitoring unit 25 is a portion surrounded by a two-dot chain line in FIG. 2, and the router 47 is connected to a monitoring personal computer (hereinafter, referred to as “monitoring PC”) 49 via a LAN card 48. The monitoring PC 49 is connected to the router 51 via the LAN card 50. Further, the router 51 has a DSU 52
And the DSU 52 is connected to the digital dedicated line 29.
Is connected to a personal computer 31 installed in the security institution 30 via the. The personal computer 31 has a decryption unit 31a as decryption means for decrypting the encrypted security signal transmitted via the communication network 17.
Is provided.

Therefore, when the Internet is performed by the security system 10 configured as described above, first, a URL (a means for accessing various information resources and resources used from a WWW browser installed in the personal computer PC of the house 11) is used. (A standard that defines how to specify the name). Then, the communication network 1
7, an external designated URL can be accessed from the optical communication line 28 via the center device 20. At this time, the functions of the router 23 and the firewall 24 prevent the IP address assigned to the personal computer PC of the house 11 from leaking outside. Then, various information from the access destination is transmitted to the personal computer PC of the house 11 from the optical communication line 28 via the center device 20 via the communication network 17. Therefore, by transmitting and receiving various information via the router 23 and the firewall 24, unauthorized intrusion into the communication network 17 from the outside is prevented, and private information of the house 11 is protected.

Next, a mode in which the center device 20 (monitoring unit 25) monitors the operation state of the security device 19 in the security system 10 configured as described above will be described. That is, if the security device 19 installed in the house 11 breaks down or disconnects for some reason,
It is necessary to monitor the operation state of the security device 19 so that the security device 19 does not perform its original function.

Therefore, when monitoring the operation state of the security device 19, the monitoring PC 49 of the center device 20 transmits a check signal to the security device 19 of the house 11 via the communication network 17. Then, the monitoring PC 49 sends the check signal to the control device 39.
If it is received by the (control section 39a), it is determined to be normal.
At this time, since the monitoring PC 49 is in a normal operation state different from the operation state previously set as the abnormal state among the operation states of the security device 19, the monitoring information (monitoring signal) is transmitted to the personal computer 31 of the security agency 30. ) Is not output.

On the other hand, when the control device 39 does not receive the check signal, the monitoring PC 49 sets the operation state of the security device 19 to an operation state set in advance as an abnormal state (ie, an abnormal operation state). It is determined that there is. Therefore, the monitoring PC 49 sends the security device 19 to the personal computer 31 of the security agency 30.
Transmits the monitoring signal indicating that the device is in an abnormal operation state. Upon receiving the monitoring signal, the security institution 30 checks the security device 19 in the house 11 (for example, dispatches a security guard). That is, the monitoring PC 49 constantly monitors the operation state of the security device 19 via the communication network 17,
When an abnormal operation state is detected from the detection results, a monitoring signal is transmitted to the security agency 30. In addition, the monitoring unit 25 is provided for each house 1 of the apartment 13.
The operation states of the security devices 19 of the stores 3a and 13b and the store 15 are similarly monitored.

Next, as an example of the safety management of the house 11 in the security system 10, the movement of a resident (human) during bathing is detected by the abnormality detection sensor 41 (bathroom sensor), and based on the detection result, Security Agency 30
Will be described.

First, the abnormality detection sensor 41 operates to determine the movement of a person taking a bath based on the algorithm described above. And the abnormality detection sensor 41 is
If the detection result corresponds to a detection result (detection of a state in which a person stops moving in the bathroom) set as an abnormal state, a security signal is output to the control device 39 (control section 39a). Next, the control unit 39a converts the form of the security signal into a protocol form that can be transmitted through the communication network 17 in order to transmit the security signal to the personal computer 31 of the security agency 30 via the communication network 17. To process. That is, in the present embodiment, the security signal is transmitted by a TCP (Transmission control pr
otocol) / Converts to security signals in the form of IP (Internet protocol).

Thereafter, the control section 39a outputs the security signal after the conversion processing to the encryption section 39b, and the encryption section 39b encrypts the security signal. And
The control device 39 transmits the encrypted security signal to the hub 3.
7, the communication network 17 via the modem 36 and the distributor 35
And the security signal is transmitted to the security agency 30 via the communication network 17. Note that the control unit 39a
A unique identification signal assigned in advance to each control device 39 is transmitted to the security agency 30 via the communication network 17 together with the security signal.

On the other hand, the center device 20 receives the security signal from the communication network 17 and transmits the security signal to the modulator 4.
5, transmitted to the monitoring unit 25 via the LCU 21 and the hub 44. The monitoring PC 49 of the monitoring unit 25
Then, the security signal is transmitted to the personal computer 31 of the security agency 30 via the digital dedicated line 29. As a result, in the personal computer 31 receiving the security signal,
The decryption unit 31a decrypts the security signal emitted by the abnormality detection sensor 41 and writes the security signal into the personal computer 31. And the personal computer 31
Recognizes that there is a notification from the house 11 (the abnormality detection sensor 41) based on the identification signal, and
At 0, measures such as contacting the house 11 or dispatching a security guard are performed.

When the emergency button 40 is depressed, the control unit 39 performs conversion processing similarly to the security signal emitted by the abnormality detection sensor 41, and the converted security signal is transmitted via the communication network 17. It is transmitted to the personal computer 31 of the security agency 30. Then, a guard of the security agency 30 checks the situation from a resident of the house 11 through a telephone line 43 connected to the control device 39.

Next, the camera C installed in the house 11
Said security agency 30 based on the image information acquired by
A mode of performing the first safety management will be described. For example, when going out, the camera C is in a state where the state of the house 11 is constantly captured as an image. Then, the image information obtained by the camera C is transmitted to the personal computer 31 of the security agency 30 via the center device 20 via the communication network 17. As a result, the security agency 30 always has the housing 11
The inside can be monitored with images. Housing 1
For example, the resident 1 monitors the intruder into his / her home (house 11) via the communication network 17 via the center device 20 using a personal computer from outside and monitors the state of the answering machine only for children and the elderly. You can also check.

When the resident of the house 11 moves in and out, the controller 39 issues an entry / exit signal as well as the security signal by the controller 39 (control section 39a).
The signal is converted into a CP / IP signal. Then, the converted entry / exit signal is transmitted to the personal computer 31 of the security agency 30 via the communication network 17.

Therefore, in the present embodiment, the following effects can be obtained. (1) The security signal generated by the abnormality detection sensor 41 is transmitted to the personal computer 31 of the security agency 30 via the communication network 17, that is, as a digital signal. Therefore, the security signal generated by the abnormality detection sensor 41 is transmitted to the security engine 3
If it is 0, it can be received immediately. Therefore, conventionally, it takes several tens of seconds to one hour for the security agency 30 to receive the security signal.
The time required for about a minute can be shortened, and the security agency 30 can promptly respond based on the security signal.

(2) Each of the abnormality detection sensors 41 constituting the security equipment 19 installed in each building has its own IP.
The address is attached. Therefore, the control device 39
Connects to the communication network 17 based on the IP address,
A security signal can be transmitted to the security agency 30. Further, the security agency 30 can easily recognize which security detection sensor 41 installed in which building the received security signal is emitted from. Further, each building (security equipment 19) to be guarded by the security agency 30 can be easily managed.

(3) Communication network 17 capable of packet communication
, A security system 10 is constructed. Therefore, the security can be improved as compared with a security system using a telephone line that cannot transmit a plurality of pieces of information in a mixed manner. That is, the security signal generated by the abnormality detection sensor 41 can be reliably transmitted to the security agency 30 even while using the Internet.

(4) The image information obtained by the camera C can be transmitted to the security agency 30 via the communication network 17. For this reason, the security agency 30 determines from the image information
The state inside each building such as 1 and 12 can be easily grasped. In addition, it is possible to check the state of the house from outside. Also, the digitized image information is transmitted to the communication network 1.
7, the image data of a large capacity can be transmitted at high speed.

(5) The monitoring unit 25 of the center device 20 monitors the operation state of the security device 19 via the communication network 17. Therefore, as compared with the case where the operation state of the security device 19 is monitored through a telephone line, the operation state of the security device 19 can be constantly monitored without considering a call charge because the connection is always on. Therefore, an abnormal operation state of the security device 19 can be quickly found, and the reliability of the security system 10 can be improved.

(6) The control device 39 encrypts the security signal generated by the abnormality detection sensor 41 and transmits the encrypted security signal to the security organization 30 via the communication network 17. Therefore, it is possible to prevent the security signal from being illegally obtained on the communication network 17 or from being rewritten to an incorrect signal. Therefore, the security system 10 can be used safely.

(7) The control device 39 transmits the security signal to a TCP / I which is a standard Internet protocol.
It is converted to P-type information. Therefore, the control device 39 can be directly connected to the Internet (the communication network 17). For example, there is no need to install a dedicated personal computer in using the security system 10 in addition to the security device 19, and the security system 10 can be simplified and the security system 10
Can reduce the introduction cost and reduce the burden on the user.
Further, since the security system 10 can be constructed by using the existing CATV communication network, the cost required for constructing the security system 10 can be suppressed, and the cost to be borne by the user of the system 10 can be reduced. Can also contribute.

(8) The entry / exit signal issued by the control device 39 is transmitted to the personal computer 31 of the security agency 30 via the communication network 17. Therefore, the entry / exit signal can be transmitted to the security agency 30 immediately. Also,
Even if frequent entry / exit is performed, compared to a case where the entry / exit signal is transmitted through a telephone line, since the connection is always made, the burden of call charges can be reduced.

The present embodiment may be modified as follows. In the above-described embodiment, the CATV communication network is used as the communication network 17.
ices digital network) Communication network (including general public network or IP communication network), FTTH (Fiber to the hom
e) Other existing communication networks such as communication networks may be used. In this case, the security system 10 can be constructed in the same manner as in the above embodiment. In constructing the security system 10, a new dedicated communication network may be formed, and the security device 19 may be connected to the communication network. It should be noted that “always connected” means the first connection mode described below, and the second connection mode is not included in “always connected”. That is, the first connection mode means that the control device 39 and the personal computer 31 of the security agency 30 can transmit and receive information (security signal, entry / exit signal, etc.) via the communication network 17 at any time. Means, for example, FLET'S I provided by NTT
An SDN communication network is also included in the constant connection. In contrast,
The second connection state is a connection in which the information transmitting side dials up and connects to the communication network. For example, when the information receiving side is busy and information cannot be received, information cannot be transmitted or received. The mode is described.

In the above-described embodiment, the detached houses 11 and 12 and the condominiums 13 and 14 are described as the buildings. However, other dwelling facilities such as apartment houses such as a corporation and an apartment, and business facilities other than the store 15 (for example, ,
The security system 10 may further include an enterprise (e.g., a company), an educational facility (e.g., a school), and a game / social facility (e.g., a sports center). And
When the security device 19 is installed in each of these facilities, it is subject to security by the security agency 30.

In the above embodiment, the center device 20 is installed in the management company that manages the CATV communication network. For example, the center device 20 is installed on behalf of the management room of the condominium 13 or a public facility ( For example, it may be installed in a government office or a public hall. That is, the installation location of the center device 20 is not particularly limited, and the center device 20 is appropriately installed at an optimal location for constructing the security system 10.

In the above embodiment, the installation location of the camera C is not described, but it may be installed integrally with the personal computer PC or the security device 19 (for example, installed on the emergency button 40). In addition, for example, an installation mode (an installation location and an installation method) may be used at the entrance or in the garden, and is not particularly limited.

In the above embodiment, the abnormality detection sensor 41
Although a bathroom sensor is described as an example, other abnormality detection sensors 41 such as a fire alarm, a gas leak detector, a water leak detector, and a security sensor may be used. The operating state of these abnormality detection sensors 41 is also changed via the communication network 17 to the monitoring unit 25
Can be monitored, and a security signal can be transmitted to the personal computer 31 of the security agency 30 via the communication network 17.

In the above embodiment, the personal computer PC, camera C, telephone TL and monitoring PC 49 are connected to the LAN card 3
Although they are connected via 8, 48, and 50, they may be connected via a LAN board. That is, whether to connect these various devices using a LAN card or a LAN board is appropriately selected according to the devices to be connected.

In the above-mentioned embodiment, a CCD camera is installed as a camera C in each building. For example, a digital camera capable of acquiring a still image or a PHS with a camera is provided.
Alternatively, a mobile phone may be used. That is, any device that can acquire an image can be used in the security system 10 without being limited to the type. Further, by attaching a sound acquisition device (for example, a microphone) to the camera C, sound information may be acquired in addition to the image information. In this way, the image information and the audio information obtained by the camera C can be transmitted to the security agency 30 via the communication network 17.

As the security organization 30 in the above-mentioned embodiment, for example, a security company which is a private company, a police station which is a public organization, and the like can be cited. In the above embodiment, the center device 20 and the communication institution 27
Are connected by an optical communication line 28, but an ADSL (asymmetric digi) using an existing copper (metallic) telephone subscriber line is used.
A high-speed communication method such as tal subscriber line) may be used.

In the above embodiment, the center device 20 constantly monitors the operation state of the security device 19, but monitors the operation status periodically, for example, at short time intervals such as every 1, 5, 10 minutes. You may do it. That is,
In the present embodiment, unlike the related art, the security device 1
Since there is no need to consider the call charges required for monitoring the security device 9, the security device 19 can be monitored at short time intervals, and safety can be improved.

In the above embodiment, the houses 11, 12 and the condominiums 13, 14 are located at different locations.
It is a building built independently, and the building is
Although the security system 10 was constructed as a security target of 0, for example, the security system 10 was constructed with an independent building in the same area as a security target of a security agency 30 such as a building built in a subdivision. May be.

In the above embodiment, the security device 1
9 is provided with an encryption unit 39b in the control unit 39 and a personal computer 31 of the security agency 30 is provided with a decryption unit 31a, but the security system 10 is omitted by omitting the encryption unit 39b and the decryption unit 31a. May be built.

In the above embodiment, the center device 20 and the security agency 30 are connected by the digital exclusive line 29, but the digital exclusive line 29 is connected to the communication network 17
May be changed to Then, the house 1 is connected to the existing communication network 17.
The security system 10 may be constructed such that each building such as No. 1 is connected to the center device 20 and the security agency 30 and the monitoring signal and the security signal are transmitted using the communication network 17. When the digital dedicated line 29 is used as in the above embodiment, the decoding unit 31a provided in the personal computer 31 of the security agency 30 may be provided in the monitoring device 49 of the center device 20, for example. . That is, when the digital dedicated line 29 is used, the security signal and the like cannot be illegally obtained from outside.

In the above embodiment, the security device 1
In this embodiment, the control device 39 connects to the communication network 17 (fixed IP connection) based on the IP address assigned to D.9.
An HCP (dynamic host configuration protocol) connection may be used. In this case, the security device 19
The (control device 39) includes a DHCP unit as connection means for making a DHCP connection to the communication network 17. Then, the DHCP unit is connected to the communication network 1.
7 is obtained from the DHCP server connected to the communication network 7, and based on the IP address, the communication network 17
Make an HCP connection. According to the DHCP connection, it is possible to cope with the DHCP connection on the Internet using the communication network 17, and to transmit and receive information from the unspecified number of users through the communication network 17 unlike the fixed IP connection. be able to. Further, there is no need to assign an IP address (fixed IP address) to the security device 19 (control device 39) owned by the user (security target) of the security system in advance. Therefore, in the security agency 30,
If the control device 39 is connected to the communication network 17, all of the control device 39 is subject to security and the security range can be greatly expanded.

In the above embodiment, the cable modem 36 is employed because the CATV communication network is used.
A device having a function equivalent to that of the cable modem 36 (for example, another modem (for example, an ADSL modem), a TA (terminal adapter), a router, or the like) may be employed.

Next, technical ideas that can be grasped from the above embodiment and other examples will be additionally described below. (A) The security system according to any one of claims 1 to 5, wherein the communication network is one of a TV co-listening communication network, a CATV communication network, an ISDN communication network, and an FTTH communication network. With such a configuration, it is possible to effectively use an existing communication network to reduce costs required for constructing a security system.

(B) The security device further comprises a connection means for making a DHCP connection to the communication network, and any one of the above technical ideas (a) and (b). The security system according to claim 1.

[0062]

According to the present invention, security management of a security object (for example, a building such as a detached house or an apartment) can be quickly performed by a security agency by effectively utilizing a communication infrastructure such as the Internet.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of a security system.

FIG. 2 is a wiring diagram illustrating a detailed configuration of a house and a center device.

[Explanation of symbols]

C: CCD camera as image acquisition device, 11, 12 ...
Single-family house as security target, 13, 14 ... condominium as security target, 15 ... store as security target, 1
7 communication network, 19 security device as security device, 25 monitoring unit as monitoring means, 30 security organization, 31 personal computer as equipment installed in security organization, 31a decryption as decryption means Unit, 39 ... Control device as control means, 39b ... Encryption unit as encryption means, 41 ... Abnormality detection sensor (bathroom sensor) as detection means.

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) H04M 9/00 H04M 9/00 H 11/04 11/04 H04N 7/18 H04N 7/18 DF term (reference) 5C054 DA01 DA08 FC13 HA19 5C084 AA02 AA07 AA13 BB33 BB40 CC17 DD11 EE03 EE04 FF04 GG43 GG78 HH10 HH12 HH13 5C087 AA02 AA03 AA19 BB03 BB12 DD16 BB74 DD04 DD05 DD07 DD25 DD26 FF16 FF20 FF16 FF20 FF16 FF20 FF16 GG20 FF20 FF16 FF20 FF16 GG20 FF20 FF20 FF20 FF16 GG20 FF20 FF16 FF20 FF20 FF20 FF20 FF20 FF20 FF20 FF20 FF16 GG20 GG02 GG05 5K101 KK14 LL01 MM07 NN01 NN14 NN21 RR12

Claims (5)

[Claims] 1. A security device installed corresponding to a security object, monitoring means for monitoring an operation state of the security device, security information issued by the security device and monitoring information issued by the monitoring means to a security agency. A communication network for transmitting the security information to an installed device.
A security system comprising control means for converting information into information that can be transmitted in a P form. 2. The security device according to claim 1, wherein the security device is configured to include an image acquisition device, and the image information acquired by the image acquisition device via the communication network is provided as security information to a device installed in the security agency. 2. The security system according to claim 1, wherein transmission is possible. 3. The security device according to claim 1, further comprising a detection unit configured to detect a movement of a human from the acquired image information. 3. The security system according to claim 1, wherein the security information can be transmitted to a device installed in the security agency only when the security information corresponds to a set detection result. 4. The apparatus according to claim 1, wherein the monitoring unit is configured to provide the monitoring information to the device installed in the security agency only in a case where the monitoring information corresponds to an operation state set as an abnormal state in advance among the operation states of the security device via the communication network. The security system according to any one of claims 1 to 3, wherein the security system is capable of transmitting data to a computer. 5. The security device includes encryption means for encrypting the security information and outputting the encrypted security information to the communication network, and transmits the security information to equipment installed in the security agency via the communication network. The security system according to any one of claims 1 to 4, further comprising a decryption unit that decrypts the security information that has been decrypted.