WO2003085983A1 - Système de surveillance d'une région déterminée - Google Patents

Système de surveillance d'une région déterminée Download PDF

Info

Publication number
WO2003085983A1
WO2003085983A1 PCT/JP2002/003408 JP0203408W WO03085983A1 WO 2003085983 A1 WO2003085983 A1 WO 2003085983A1 JP 0203408 W JP0203408 W JP 0203408W WO 03085983 A1 WO03085983 A1 WO 03085983A1
Authority
WO
WIPO (PCT)
Prior art keywords
monitoring
moving
unit
data
monitor
Prior art date
Application number
PCT/JP2002/003408
Other languages
English (en)
Japanese (ja)
Inventor
Takamaro Toyooka
Original Assignee
Denaro Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Denaro Co., Ltd. filed Critical Denaro Co., Ltd.
Priority to PCT/JP2002/003408 priority Critical patent/WO2003085983A1/fr
Publication of WO2003085983A1 publication Critical patent/WO2003085983A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source

Definitions

  • communication lines including wired and wireless
  • a monitoring system for a specific area has been proposed.
  • a specific area to be monitored is remotely monitored by a monitoring image captured by a monitoring terminal having an imaging device such as a visual acuity camera. Because only a part of the specific area to be monitored can be monitored, the specific area should be monitored closely. For this purpose, it is necessary to provide a plurality of monitoring terminals in the specific area, which increases the cost of introducing the system, and even if these monitoring terminals are installed, the monitoring terminals are fixed. There was a problem that blind spots were inevitably formed and it was not possible to change the viewpoint greatly and perform monitoring.
  • the present invention has been made in view of the above-described problems, and has as its object to provide a monitoring system for a specific area capable of closely monitoring the specific area at low cost. Disclosure of the invention
  • a monitoring system for a specific area comprises: a monitoring unit having at least a monitoring unit having an imaging device; and a communication unit for transmitting monitoring information in the monitoring unit to an external monitoring device. Terminal,
  • a monitoring device connected to the monitoring terminal so as to be capable of data communication, receiving monitoring information transmitted from the monitoring terminal, and capable of displaying at least a monitoring image by the imaging device;
  • the monitoring terminal can move within the monitored area by providing a moving unit, it is not necessary to provide a large number of monitoring terminals, and the specific area can be reduced with a minimum number of monitoring terminals. Close monitoring is possible, and the cost of introducing the system can be kept low.
  • the moving means is formed by a moving carriage that moves in a moving path provided in the monitored area.
  • the monitoring system for a specific area wherein the monitoring terminal includes the imaging device
  • the mobile unit preferably comprises a mobile unit moving in the monitored area, and a fixed unit capable of contactlessly communicating with the mobile unit and including the communication unit.
  • the communication between the mobile unit and the external monitoring device can be easily formed via the fixed unit, and the non-contact communication without using a cable or the like allows the communication with the mobile unit.
  • These cables and the like are not worn away, and maintenance labor and costs can be greatly reduced.
  • the moving path includes a power supply unit for supplying electric power to the moving cart or the moving cut.
  • FIG. 1 is a block diagram showing a configuration of a specific area monitoring system in an embodiment of the present invention.
  • FIG. 2 is an external perspective view showing a mobile unit constituting a monitoring terminal used in the monitoring system for a specific area according to the embodiment of the present invention.
  • FIG. 3 is a side view showing a movable trolley connected to the movable hood used in the embodiment of the present invention.
  • FIG. 4 is a sectional view showing a moving rail and a moving trolley which are moving means used in the embodiment of the present invention.
  • FIG. 5 is a block diagram showing a configuration of a mobile unit constituting a monitoring terminal used in the embodiment of the present invention.
  • FIG. 6 is a block diagram showing a configuration of a fixed unit constituting a monitoring terminal used in the embodiment of the present invention.
  • FIG. 7 is a block diagram showing a configuration of an access module used in the embodiment of the present invention.
  • FIG. 8 is a block diagram showing the configuration of the management computer used in the embodiment of the present invention.
  • FIG. 9 is an external view showing a personal computer carried by a user who can output a monitoring image and a sound from the monitoring terminal according to the embodiment of the present invention.
  • FIG. 10 is a flowchart showing the flow of a monitoring process in the monitoring system according to the embodiment of the present invention.
  • FIG. 11 is a flowchart showing a flow of an encryption process in the monitoring system according to the embodiment of the present invention.
  • FIG. 1 is a block diagram illustrating a configuration of a monitoring system for a specific area according to the present embodiment
  • FIG. 2 illustrates mobile units configuring a monitoring terminal used in the monitoring system for a specific area according to the present embodiment.
  • FIG. 3 is a side view showing a movable carriage connected to the movable unit used in the present embodiment
  • FIG. 4 is a perspective view showing a movable rail and movable means used in the present embodiment.
  • FIG. 5 is a cross-sectional view showing a bogie
  • FIG. 5 is a block diagram showing a configuration of a mobile unit constituting a monitoring terminal used in the present embodiment.
  • FIG. 6 is a block diagram showing a configuration of a monitoring terminal used in the present embodiment.
  • FIG. 7 is a block diagram showing a configuration of a fixed unit to be used
  • FIG. 7 is a block diagram showing a configuration of an access module used in the present embodiment
  • FIG. 8 is a management computer used in the present embodiment. of Is a block diagram showing a formation
  • the monitoring system for a specific area includes a mobile unit 1 and a fixed unit 2 installed at a place where a user wants to monitor, for example, a monitored area such as a home. And a management computer 3 owned by a service provider connected to the monitoring terminal and a personal computer 15 as a monitoring device owned by the service user via an Internet network 5 so as to be able to perform data communication. And monitoring devices such as personal computers 15 operated by users of the monitoring service.
  • the monitoring terminal used in this embodiment is a ceiling terminal in the monitored area.
  • the mobile unit 1 is configured to be movable on a mobile rail 102 mounted on the mobile unit 1 and captures images and sounds of the monitored area and collects sound.
  • the mobile unit 1 performs wireless non-contact data communication with the mobile unit 1.
  • a fixed unit 2 for encrypting the compressed image data and voice data transmitted from the mobile unit 1 and transmitting the encrypted image data and voice data to the personal computer 15 of the service user as a monitoring device via the Internet network 5. ing.
  • the moving unit 1 used in the present embodiment will be described with reference to FIGS. 2 and 3.
  • the moving unit 1 is a moving unit that moves in a moving rail 102 mounted on a ceiling or the like of a monitored area.
  • the mobile trolley 103 is connected to the trolley 103 so that the mobile trolley 103 can move in the monitored area with the movement of the mobile trolley 103.
  • a main body cut 4 provided with a monitoring camera 55 as an imaging device and a sound collecting microphone 53 is suspended by a connecting pipe 105.
  • the main unit 4 can also move in the monitored area by moving the movable carriage 103 in the movable rail 102.
  • the moving rail 102 and the moving carriage 103 which are moving means used in the present embodiment, will be described in detail.
  • the moving rail 102 used in the present embodiment is shown in FIG.
  • a rectangular tube-shaped rail having an opening slit and having a substantially U-shaped cross section and having an opening slit is provided in the center of the lower surface thereof.
  • the movable carriage 103 can move in a state where the connecting building 105 projects downward from the opening slit.
  • the mobile trolley 103 has front and rear surfaces on both sides of a vehicle body 108 having a drive motor 121 therein.
  • a running roller 109 is pivotally mounted on a pair of left and right.
  • a gear 1 is provided on one outer surface of the running rollers 109 and 109.
  • the drive gears 1 2 2 and the two gears 1 2 3 and 1 2 3 are combined with both gears 1 2 3 and 1 2 3.
  • the drive gear 122 is provided at a central position, and is fixed to a drive shaft for transmitting power from the drive motor 121 inside the vehicle body 108, so that the drive gear 122 is provided.
  • the rotating force of 1 is transmitted to the running roller 109 so that the moving carriage 103 can move in the moving rail 102.
  • a trolley 115 slidingly contacting the power supply bar 113 is provided on an upper surface panel 110 covering the upper surface of the vehicle body 108, and an inner surface thereof is provided. Is connected to the drive motor 121 and output from an MPU 65 provided inside the main unit 4 through a connection cable 116 inserted into the connecting pipe 105. A motor control board 117 for controlling the operation of the drive motor 121 based on the incoming control signal is fixed.
  • the motor control board 1 17 is also connected to the trolley 1 15, and the power supplied from the power supply unit 113 to the trolley 1 15 is applied to the motor control board 1 17. It is supplied to the drive motor 122 through the connection cable 116 and to the main unit 4 via the connection cable 116.
  • the main unit 4 of this embodiment has a box shape that can be disposed at the lower end of the connecting pipe 105.
  • a transparent dome-shaped cover 68 is provided on the lower surface of the housing 50, and a monitoring camera 55 as monitoring means and a monitoring direction of the monitoring camera 55 are provided inside the cover 68.
  • a direction changing device 58 that can be changed left, right, up and down is provided, and a predetermined frequency for the main unit 4 to perform wireless communication with the fixed unit 2 is provided on a side surface of the housing 50.
  • An antenna 51 for transmitting and receiving radio waves is provided rotatably, and a sound collecting microphone 53 capable of collecting sound in a monitoring area is provided on another side surface.
  • the configuration inside the housing 50 of the main unit 4 is for exchanging radio waves in the 2.47 GHz band with the fixed unit 2 via the antenna 51.
  • a transmitting / receiving RF module 60 as a wireless communication means including a receiving unit 61, a transmitting unit 62, and an antenna switch 63, and a transmitting / receiving RF module
  • a modem 64 for demodulating the radio wave received by the receiver 60 and modulating the radio wave transmitted by the transmitting / receiving RF module 60; and temporarily storing data transmitted / received by the modem 64.
  • a PCM codec 52 which is an A / D converter connected to the sound collecting microphone 53 for converting the input sound into digital data, and an image formed internally by a lens.
  • a surveillance camera 55 having a charge coupled device (CCD) 54 which can be output as a digital data stream, and the voice data and image data output from the PCM codec 52 and the charge coupled device (CCD) 54
  • a digital signal processor (DSP) 56 that performs compression processing using a compression algorithm (MPEG method), a direction change device 58 that moves the shooting direction of the monitoring camera 55, a pilot lamp (L ED) 69, and a MPU 65 connected to each of these units as shown in FIG. 3 and performing processing such as control of each unit, and the MPU 65 is provided inside the MPU 65.
  • MPEG method compression algorithm
  • L ED pilot lamp
  • MPU 65 connected to each of these units as shown in FIG. 3 and performing processing such as control of each unit, and the MPU 65 is provided inside the MPU 65.
  • a control program or the like is described in which monitoring means such as the monitoring camera 55, the direction changing device 58, and the sound collecting microphone 53, which are implemented by the user, and control contents such as starting and stopping of peripheral devices of the monitoring means are stored.
  • reference numeral 67 denotes an output port for outputting a control signal to the motor control board 117.
  • the image data and the audio data are compressed and transmitted by the MPEG method using the DSP 56 as described above, and the data compression is performed by the data capacity to be transmitted.
  • the present invention is not limited to this.
  • the monitoring camera 55 and the sound collecting microphone 53 are provided as monitoring means, but the present invention is not limited to this. It may be possible to use an infrared sensor that can detect infrared rays emitted from the air, a temperature monitoring sensor that can measure the ambient temperature of the installation location (including a fire monitoring sensor based on temperature), a smoke monitoring sensor, and the like.
  • the monitoring means may be appropriately selected according to the monitoring purpose.
  • the main unit 4 The compressed image data and the compressed audio data to be transmitted are wirelessly received, the compressed image data and the compressed audio data are encrypted, and the encrypted data is transmitted to the personal computer 15 from the management server 3.
  • the fixed unit 2 to be transmitted to the address unit is configured as shown in FIG. 6, and a transmitting and receiving RF module for exchanging radio waves in the 2.47 GHz band with the main unit 4 via the antenna 20. 22, a modem 23 that demodulates the radio wave received by the transmission / reception RF module 22 and modulates the radio wave transmitted by the transmission / reception RF module 22, and data transmitted and received by the modem 23.
  • a true random number generation unit 29 for generating a true random number used for processing is connected to each of these parts as shown in Fig. 6, and performs processing such as control of each part, encryption of monitoring data to be transmitted, and encryption of received data.
  • an MPU 24 that performs data decryption processing. Inside the MPU 24, a control program or the like in which various control contents such as encryption processing performed by the MPU 24 are described is stored. It has ROM25.
  • Device 34 input device 36 such as keyboard and mouse, real time information used for registration of connection service execution history, etc., and power render information such as day of week of any date Thailand Clock (RTC) 3 7, exemplary friendly at a relatively high speed data communication with the monitoring terminal or the user of the monitoring device PC 1 5 like a
  • It consists of a functional communication interface 33, a true random number generation unit 38 for generating a true random number used for encryption / decryption, a magnetic disk or a magneto-optical disk, and an identification code that can identify a user ( A user database (DB) in which the password of the user and the fixed IP address assigned to the monitoring terminal installed at the place where the user wants to monitor are registered in association with the user ID (ID).
  • DB user database
  • ID user ID
  • a storage device 35 that stores a transfer program describing the contents of transfer processing and an encryption program for encrypting and decrypting data to be transmitted and received, and a storage device 35 that is connected to It is an excellent computer.
  • the monitoring device used by the user in the present invention includes receiving the encrypted data compressed image data and the sound data transmitted from the fixed unit 2 constituting the monitoring terminal, and performing encryption. Any data that can decode, decrypt, and decompress the compressed data for playback and output is sufficient.
  • FIG. A personal computer 15 to which an access terminal 40 in which an IP address of the management server 3 is registered and which generates an intrinsic random number for decoding data and which can be attached is used.
  • the received data is decrypted into plaintext data.
  • An encryption program is stored, and by attaching the access terminal 40 to a USB insertion port provided on the side of the personal computer 15, a true random number output from the access terminal 40 is used. Then, the No. program executes encryption of authentication data as transmission data and decryption of image data and sound data as reception data.
  • the configuration of the access terminal 40 used in the present embodiment is as shown in FIG. 7, and exchanges data between the connection connector 41 that can be attached to the USB port and the personal computer 15.
  • Controller 42 a flash memory 43, which is a nonvolatile memory capable of storing an IP address of the management server 3 and a user identification change (ID), and a true random number generation chip 44 that generates a true random number.
  • the true random number generation chip 44 unlike a pseudo random number generated by a program using a shift register or the like in a pseudo manner, a chip capable of generating a completely random random number existing in the natural world can be suitably used.
  • Examples of the intrinsic random number generation chip 44 include a clutter box (trade name of HM Co., Ltd.) that generates random numbers using a thermal noise signal generated by resistance heat.
  • the clutter box (trade name of ET Corporation) can also be used suitably for the true random number generation units 29 and 38 provided in the fixed unit 2 and the management server 3. .
  • the personal computer 15, the fixed unit 2 and the management server 3 are composed of the access terminal 40 and the intrinsic random number generation units 29, 3.
  • an encryption key (public key) used for encryption and a decryption key capable of decrypting data encrypted with the encryption key (public key) (Private key) is notified in advance to the communicating party by e-mail or the like.
  • the personal computer 15 generates a public key A and a personal key A based on a true random number from the access terminal 40, and sends the generated public key A to the management server 3 in advance.
  • the personal key A is kept secret and stored by e-mail, etc.
  • the management server 3 similarly uses the true random number output from the true random number generation unit 38 to generate the public key.
  • B and a private chain B are generated, and the generated public key B is notified in advance to the personal computer 15 and the fixed unit 2 by e-mail or the like, and the private key B is concealed and stored. Keep it.
  • the fixed unit 2 also generates a public key C and a private key C by using the true random number output from the true random number generation unit 29, and sends the generated public key C to the management server 3 in advance.
  • the personal key C is kept secret while being notified by e-mail.
  • Each public key notified by the electronic mail or the like is registered in a key database in association with a user ID or a monitoring terminal ID, and is used for encryption in communication with the user or the monitoring terminal.
  • the personal computer 15 sends the user ID stored in the access terminal 40 as authentication data to the personal computer 15 as authentication data.
  • the received password is encrypted and transmitted to the management server 3.
  • These authentication data are encrypted as shown in FIG. Specifically, a secret key is generated based on the true random number output from the access terminal 40, the authentication data is encrypted using the generated secret key, and encrypted data Y is generated. .
  • the secret key used for encrypting the encrypted data Y is encrypted with the public key B registered in the key database notified in advance from the management server 3 that is the destination of the encrypted data. To generate an encrypted private key X.
  • the authentication data is encrypted with the personal key A generated in advance by the personal computer 15 to generate encrypted data Z.
  • the encrypted secret key X, the encrypted data Y, and the encrypted data ⁇ generated in this way are transmitted to the management server 3 as transmission data.
  • the management server 3 extracts the encrypted secret key X, the encrypted data ⁇ , and the encrypted data ⁇ ⁇ from the received data, and decrypts the encrypted secret key X with the personal key ⁇ ⁇ to obtain plaintext secret key data. Then, the encrypted data ⁇ is decrypted with the secret key data to obtain plaintext authentication data. Further, the encrypted data Z is decrypted by using the public key ⁇ notified in advance from the personal computer 15 and registered in the key database of the management server 3 to obtain plaintext authentication data. It is determined whether or not the authentication data of the encrypted data Y and the authentication data of the encrypted data Y match, and if they match, the authentication data in plain text is recognized as the received data.
  • the management server 3 searches the user ID and the password included in the plain text authentication data for a registration that matches the user database, and if the registration matches the registered content, the management server 3 checks the user ID and the password.
  • the monitoring terminal ID of the monitoring terminal registered in the user database in association with the monitoring terminal ID is extracted, the IP address corresponding to the monitoring terminal ID is specified, and the public key C corresponding to the monitoring terminal ID is extracted from the key database. Put out.
  • the IP address data of the personal computer 15 of the user who has accessed is encrypted with the secret key decrypted from the encrypted secret key X transmitted from the personal computer 15, and the encrypted IP address Y ′ And encrypting the secret key with the public key C of the monitoring terminal extracted above to generate an encrypted secret key X ′.
  • the IP address data of the personal computer 15 is encrypted with the personal key B of the management server 3 to generate an encrypted IP address Z ′, and the generated encrypted secret key X ′ and the encrypted IP address are generated.
  • Y 'and the encrypted IP address Z' are transmitted as transmission data to the IP address of the monitoring terminal ID specified above (specifically, the IP address of the fixed unit 2), and the access history from the personal computer 15 is transmitted. Is registered in the history database. (See Fig. 10)
  • the registered user matching the user ID and password included in the plaintext authentication data does not exist in the user database, it is determined that the user is not a regular user, and access is denied. To disconnect the session.
  • the fixed unit 2 that has received the encryption secret key X ′, the encryption IP address Y ′, and the encryption IP address Z ′ from the management server 3 receives the encryption secret key X ′, the encryption IP address from the received data.
  • Y ′ and the encrypted I address ⁇ respectively, and the encrypted private key X ′ is decrypted and decrypted with the private key C which has been generated and registered in advance to obtain plaintext private key data.
  • the encrypted I @ address Y ' is decrypted with the secret key data to obtain a plaintext IP address.
  • the encrypted IP address Z is decrypted to obtain a plaintext IP address, and the encrypted IP address is obtained.
  • the mobile unit 1 having the sound collecting microphone 53 is activated, and transmitted from the mobile unit 1 to the decrypted plaintext IP address using the secret key data decrypted from the encrypted secret key X ′.
  • the transmitted compressed monitoring image data and audio data are encrypted and transmitted.
  • the compressed surveillance image data and voice data encrypted with the secret key data are received by the personal computer 15 and generated by the personal computer 15.
  • the secret key data is decrypted into plaintext compressed surveillance image data and audio data by decryption, and the compressed surveillance image data and audio data are reproduced and displayed by the browser.
  • the user Based on the display of the monitoring image and the reproduction of the sound, the user operates the keyboard to perform an operation of instructing a shooting direction and a moving direction.
  • the operation information (data) is transmitted to the IP address of the fixed unit 2 which is the transmission source of the monitoring data without being encrypted, and the operation information (data) is transmitted through the fixed unit 2 By transmitting a control signal to the direction changing device 58 or the motor control board 117 by transmitting the operation information (data) by wireless transmission to the main unit cut 4.
  • the MPU 65 will be implemented. As described above, the present invention has been described with reference to the drawings. However, the present invention is not limited to these embodiments, and it goes without saying that changes and additions without departing from the scope of the present invention are included in the present invention. .
  • the monitoring terminal is composed of the mobile unit 1 and the fixed unit 2, but the present invention is not limited to this, and these may be configured as a single movable monitoring terminal. .
  • the communication between the mobile unit 1 and the fixed unit 2 is wireless non-contact communication.
  • the present invention is not limited to this.
  • Contact communication via 3 may be used, or an infrared communication method may be used as a non-contact communication mode.
  • the personal computer 15 is exemplified as the monitoring device, but the present invention is not limited to this, and may be a computer terminal capable of displaying the monitoring image or the like, such as a mobile phone. Is also good.
  • the personal computer 15 as the monitoring device and the management server 3 and the fixed unit 2 constituting the monitoring terminal are connected via the Internet network 5, but the present invention is not limited to this.
  • the personal computer 15, the management server 3, and the monitoring terminal may be connected via a communication network or the like.
  • the present invention is not limited to this, and other moving means may be used.
  • the power supply unit 113 is provided inside the moving rail 102 so that power can be externally supplied to the moving unit 1.
  • the present invention is not limited to this. Instead, the power may be supplied by a battery or the like.
  • the configuration is such that the management server 3 that manages access to the monitoring terminal is provided.
  • the present invention is not limited to this. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Alarm Systems (AREA)

Abstract

L'invention porte sur un système de surveillance d'une région déterminée, ce système comprenant des terminaux de surveillance (1, 2) pourvus chacun d'un dispositif de surveillance possédant au moins un appareil d'imagerie et un dispositif de communication (2) destiné à transmettre des informations relatives à la surveillance, du dispositif de surveillance à un moniteur externe (15). Le moniteur (15) est connecté aux terminaux de surveillance (1, 2) afin de communiquer des données et peut contrôler les images sur l'appareil d'imagerie en réceptionnant les informations provenant des terminaux de surveillance (1, 2). Une région sous surveillance équipée des terminaux de surveillance (1, 2) peut être surveillée à distance au moyen d'un moniteur (15). Le terminal de surveillance (1, 2) comprend un dispositif destiné à déplacer, dans la région sous surveillance, le terminal de surveillance (1, 2) en fonction des informations relatives au déplacement transmises depuis le moniteur (15).
PCT/JP2002/003408 2002-04-04 2002-04-04 Système de surveillance d'une région déterminée WO2003085983A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2002/003408 WO2003085983A1 (fr) 2002-04-04 2002-04-04 Système de surveillance d'une région déterminée

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2002/003408 WO2003085983A1 (fr) 2002-04-04 2002-04-04 Système de surveillance d'une région déterminée

Publications (1)

Publication Number Publication Date
WO2003085983A1 true WO2003085983A1 (fr) 2003-10-16

Family

ID=28694847

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/003408 WO2003085983A1 (fr) 2002-04-04 2002-04-04 Système de surveillance d'une région déterminée

Country Status (1)

Country Link
WO (1) WO2003085983A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05221311A (ja) * 1992-02-17 1993-08-31 Hitachi Ltd 移動式点検ロボット
JPH09115088A (ja) * 1995-10-23 1997-05-02 Shinko Electric Co Ltd トンネル内監視システム
JPH09182058A (ja) * 1995-12-27 1997-07-11 Hitachi Ltd ガス絶縁送電線監視システム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05221311A (ja) * 1992-02-17 1993-08-31 Hitachi Ltd 移動式点検ロボット
JPH09115088A (ja) * 1995-10-23 1997-05-02 Shinko Electric Co Ltd トンネル内監視システム
JPH09182058A (ja) * 1995-12-27 1997-07-11 Hitachi Ltd ガス絶縁送電線監視システム

Similar Documents

Publication Publication Date Title
WO2004039078A1 (fr) Systeme de surveillance de zone specifique
JP3455971B2 (ja) 通信回線を用いた情報供給システム
WO2001055992A1 (fr) Systeme d'informations utilisant un circuit telephonique, et un terminal de surveillance
JP2006074752A (ja) 通信回線を用いた情報供給システム
JP2004343438A (ja) 照明装置及びそれを用いた遠隔監視システム
WO2003085983A1 (fr) Système de surveillance d'une région déterminée
JP3586694B2 (ja) 通信回線を用いた情報供給システム
WO2003085882A1 (fr) Systeme de surveillance d'une zone specifique
JP3498095B1 (ja) 通信回線を用いた情報供給システム
JP2001358842A (ja) 特定領域の監視システム
JP2002157173A (ja) 特定領域の監視情報供給方法
JP2001333464A (ja) 特定領域の監視システム用監視端末
JP4193130B2 (ja) 通信回線を用いた情報供給システム
JP3561727B2 (ja) 通信回線を用いた情報供給システム
JP2002016715A (ja) 特定領域の監視システム
JP3752517B2 (ja) 監視情報供給システム
JP2002158788A (ja) 特定領域の監視情報供給システム
JP3851344B2 (ja) 通信回線を用いた情報供給システム
JP3764468B2 (ja) 通信回線を用いた情報供給システム
JP3723203B2 (ja) 通信回線を用いた情報供給システム
JP3701962B2 (ja) 通信回線を用いた情報供給システム
JP3811182B1 (ja) 通信回線を用いた情報供給システム
JP3701963B2 (ja) 通信回線を用いた情報供給システム
JP4860205B2 (ja) 通信回線を用いた情報供給システム
JP2001333463A (ja) 特定領域の監視システムおよび該システム用の監視端末

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CA JP KR US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP