WO2014141531A1 - Monitoring system, monitoring method and monitoring device - Google Patents

Monitoring system, monitoring method and monitoring device Download PDF

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Publication number
WO2014141531A1
WO2014141531A1 PCT/JP2013/079964 JP2013079964W WO2014141531A1 WO 2014141531 A1 WO2014141531 A1 WO 2014141531A1 JP 2013079964 W JP2013079964 W JP 2013079964W WO 2014141531 A1 WO2014141531 A1 WO 2014141531A1
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WO
WIPO (PCT)
Prior art keywords
storage device
power
power supply
monitoring
supply unit
Prior art date
Application number
PCT/JP2013/079964
Other languages
French (fr)
Japanese (ja)
Inventor
秀吉 佐々木
Original Assignee
株式会社ドッドウエル ビー・エム・エス
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Publication of WO2014141531A1 publication Critical patent/WO2014141531A1/en

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/181—Prevention or correction of operating errors due to failing power supply
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C5/00—Details of stores covered by group G11C11/00
    • G11C5/14—Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
    • G11C5/143—Detection of memory cassette insertion or removal; Continuity checks of supply or ground lines; Detection of supply variations, interruptions or levels ; Switching between alternative supplies
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19634—Electrical details of the system, e.g. component blocks for carrying out specific functions
    • G08B13/19636—Electrical details of the system, e.g. component blocks for carrying out specific functions pertaining to the camera

Definitions

  • the present invention relates to a monitoring system, a monitoring method, and a monitoring device, and more particularly, a monitoring system, a monitoring method, and a monitoring device that monitor whether or not a storage device that acquires and stores a video signal from an imaging device is normal. About.
  • a system having an imaging device such as a security camera and a storage device that acquires and stores a video signal from the imaging device is already well known.
  • a monitoring device is usually installed for the purpose of detecting a problem (trouble) that has occurred in the imaging device or the storage device. By installing this monitoring device, even if the state of the imaging device or storage device is in an abnormal state, it can be detected at an early stage, and the abnormal state can be improved and returned to a normal state. It becomes possible.
  • the above monitoring device monitors whether or not the storage device is in a state where the video can be normally stored, and particularly monitors whether or not the storage device is normally activated.
  • a general storage device has a built-in power supply unit that supplies power to each part in the device, but if the power supply unit is stopped or fails, no video is stored in the storage device. . For this reason, the monitoring device detects an abnormal state of the power supply unit. However, if the abnormality occurs in the power supply unit, the storage device cannot operate normally, and therefore receives a signal output from the storage device side. It is technically difficult to detect an abnormality in the power supply unit. Due to the circumstances as described above, a system for storing an image taken by a camera requires a means for detecting an abnormality of the power supply unit.
  • a measuring instrument that measures the power used by the device in a state of being arranged between the power supply and the device connected thereto Is mentioned.
  • the power measuring instrument disclosed in Patent Document 1 is a so-called smart tap, and includes an outlet portion into which a plug of a power usage device is plugged, a plug portion to be plugged into a power outlet in a building, and a sensor portion that measures power usage. And a transmission unit for transmitting the measurement result.
  • the power measuring instrument disclosed in Patent Document 1 described above is a measuring device that can be diverted because the measuring target device can be switched by plugging / unplugging, but is relatively expensive.
  • the electric power measuring device disclosed by patent document 1 uses the component which transmits infrared rays as an information transmission medium as a transmission part which transmits a measurement result. For this reason, an infrared receiving device or the like must be installed, and the overall system configuration becomes complicated, and there is a possibility that the system is difficult to handle for the user.
  • the present invention has been made in view of the above problems, and its purpose is to reliably detect abnormality of a power supply unit with a configuration that can be handled more easily, has high versatility, and is inexpensive. It is an object to provide a monitoring system, a monitoring method, and a monitoring apparatus capable of performing the above.
  • the problem is that a storage device main body that acquires and stores a video signal from an imaging device, and a power supply unit that receives power from an external power supply and supplies the power to the storage device main body.
  • the power supply device to which the power supplied from the power supply unit is supplied, and the power supply state of the power supply device is detected to determine whether power is supplied from the power supply unit to the storage device body. It is solved by having a monitoring device for monitoring the state.
  • the power supply state of the power-supplied device attached to the attachment port formed in the storage device is detected, and when the power-supplied device is not in the power supply state, the monitoring device determines that the power supply unit is in an abnormal state.
  • the monitoring system of the present invention in order to monitor the presence or absence of abnormality in the power supply unit of the storage device, the power-supplied device is attached to the mounting opening formed in the storage device, and only the power supply state of the power-supplied device is observed.
  • the system configuration is also simple. As a result, a monitoring system that can be easily handled, has high versatility, and can reliably detect abnormality of the power supply unit with an inexpensive configuration is realized.
  • the mounting port is a USB jack formed in the storage device, and the power-supplied device is connected to the USB jack and connected to a terminal provided in the monitoring device.
  • the monitoring device is configured such that when the power supplied from the power supply unit is supplied to the power-supplied device and a voltage is applied to the terminal to which the power-supplied device is connected, the power supply unit supplies the power to the storage device body. It is good also as determining with the electric power supply to being made.
  • the power-supplied device that is attached to the storage device in order to detect an abnormality in the power supply unit is a USB connection type device, thus realizing a monitoring system that is more versatile and easier to handle. Is done.
  • the monitoring device includes a monitoring device-side clock provided in the monitoring device, a monitoring device-side correction mechanism that corrects the time represented by the monitoring device-side clock, and the monitoring device side.
  • a data distribution unit that distributes corrected time data indicating the time corrected by the correction mechanism, and the storage device is distributed by the storage device-side clock provided in the storage device and the data distribution unit.
  • the time information written by the storage device with respect to the video captured by the imaging device is an accurate time. Thereby, the evidence ability of the video imaged by the imaging device is improved.
  • the monitoring device side correction mechanism acquires reference time information transmitted from an external base station, and the monitoring device side clock is matched with the time indicated by the acquired reference time information.
  • the time represented by may be corrected.
  • the monitoring device side clock is corrected with reference to the reference time information transmitted from the base station, and the storage device side clock is corrected based on the corrected time of the monitoring device side clock. It becomes possible to easily correct the time of the device side clock or the storage device side clock.
  • the monitoring device starts when power is supplied from a commercial power source, and uses power released from a power storage device built in the monitoring device when power supply from the commercial power source is interrupted. Then, the activation state may be maintained for a certain period, and a notification signal for notifying that the supply of power from the commercial power source is interrupted during the certain period may be output. If it is the above structure, it will become possible to alert
  • the monitoring device can communicate with a management terminal placed in a room different from the room where the monitoring device is placed, and periodically during the period when the monitoring device is in an activated state. It is also possible to output a communication signal. With the above configuration, it is possible to check whether or not the monitoring device is normally activated, and thus it is possible to monitor the state of the monitoring device itself.
  • the above-described problem is a storage device body that acquires and stores a video signal from an imaging device, and a power supply unit that receives power from an external power supply and supplies power to the storage device body. And executing a monitoring process for monitoring a state of the storage device, wherein the monitoring unit is formed in the storage device while the power supply unit supplies power to the storage device body. Holding the power-supplied device to which the power supplied from the power supply unit is fed when mounted in the mounting port in a state of being mounted on the mounting port, detecting the power-feeding state of the power-supplied device, and This is solved by determining whether or not power is supplied from the power supply unit to the storage device body. According to the above method, it is possible to more easily handle, have high versatility, and reliably detect abnormality of the power supply unit with an inexpensive configuration.
  • the above-described problem is a storage device body that acquires and stores a video signal from an imaging device, and a power supply unit that receives power from an external power supply and supplies power to the storage device body.
  • a monitoring device that monitors the state of the storage device, wherein the power supply unit is attached to a mounting opening formed in the storage device while supplying power to the storage device body. This is solved by detecting a power supply state of a power-supplied device to which power supplied from the power supply unit is supplied and determining whether power is supplied from the power supply unit to the storage device body.
  • the monitoring system the monitoring method, and the monitoring apparatus of the present invention, it is possible to more easily handle, have high versatility, and reliably detect abnormality of the power supply unit with an inexpensive configuration.
  • a monitoring system (hereinafter, this system) S monitors the states of a security camera 1 that is an example of an imaging device and a storage device 2 that stores the captured video.
  • the security camera 1 shoots a shooting location in a building, and the video signal is transmitted to the storage device 2 and stored in the device 2.
  • a building is a building including a detached house, a condominium, a commercial building, a commercial facility such as a department store or a movie theater, and a public facility such as a hospital.
  • the configuration of the system S will be described.
  • the system S includes a security camera 1, a storage device 2, a monitoring device 3, and a USB connection dongle (hereinafter simply referred to as a dongle) 4, as shown in FIG. It has as a main component.
  • the security camera 1 is installed in a place suitable for photographing a predetermined shooting location in the building, and the storage device 2 and the monitoring device 3 are provided in the building. It is installed in the monitoring room provided inside.
  • FIG. 1 although the case where each installation number of the security camera 1, the storage device 2, and the monitoring device 3 is 1 is illustrated, the number of each device is not particularly limited and is set to an appropriate number. Is possible.
  • the security camera 1, the storage device 2, and the monitoring device 3 are not limited to the case where they are arranged in the same building. For example, the security camera 1 and the storage device 2 are installed in different buildings. It is good to be.
  • the security camera 1 is an analog video camera and is connected to the storage device 2 by wire or wirelessly. Then, the security camera 1 captures a video of a preset shooting location and outputs a video signal indicating the captured video to the storage device 2.
  • the security camera 1 is not limited to an analog video camera, and may be a digital video camera (so-called IP camera). In other words, the video signal output from the security camera 1 toward the storage device 2 may be an analog signal or a digital signal.
  • the storage device 2 is a device for storing a video signal transmitted from the security camera 1, and is configured by a digital video recorder in the system S in which the security camera 1 is an analog type.
  • the present invention is not limited to this.
  • the security camera 1 is an IP camera
  • the storage device 2 may be configured by a network video recorder.
  • the storage device 2 includes a hard disk drive (denoted as HDD in FIG. 2) 21 and stores the video signal from the security camera 1 in the hard disk drive 21.
  • the storage device 2 includes a storage device-side controller 22, and the storage device-side controller 22 has functions of the storage device 2 including reception of video signals. Execute the process to demonstrate. More specifically, the storage device side controller 22 includes a CPU, a memory, a control circuit, and the like (not shown).
  • the storage device-side controller 22 constitutes an execution unit that executes predetermined processing in order to exhibit the function of the storage device 2.
  • the execution unit includes a video signal reception unit 22a, an error signal output unit 22b, a storage device side clock 22c, a data reception unit 22d, and a storage device side correction mechanism 22e.
  • the video signal receiving unit 22 a receives the video signal transmitted from the security camera 1 and stores it in the hard disk drive 21.
  • the error signal output unit 22b detects an abnormality related to the storage of the video signal and outputs an error signal to the monitoring device 3 when the abnormality is detected.
  • Examples of the abnormality relating to the storage of the video signal include that an abnormality such as a device failure is detected by the self-diagnosis function provided in the hard disk drive 21 and that the input of the video signal from the security camera 1 is interrupted. .
  • the storage device side clock 22c indicates a time managed internally by the storage device 2, and is a so-called real time clock.
  • the time represented by the storage device side clock 22c is written to the video signal as a time stamp when the video signal transmitted from the security camera 1 is stored in the hard disk drive 21.
  • the data receiver 22d receives the corrected time data transmitted by the monitoring device 3. The corrected time data will be described later.
  • the storage device side correction mechanism 22e corrects the time represented by the storage device side clock 22c based on the received corrected time data. By providing the storage device side correction mechanism 22e, even if the time of the storage device side clock 22c deviates from the original time (specifically, a reference time described later), the deviation is corrected. Thus, the time of the storage device side clock 22c can be corrected. By correcting the time shift in this way, the time stamp written on the video of the security camera 1 becomes an accurate time, so that the evidence capability of the video captured by the security camera 1 is improved.
  • the above effects are particularly effective when the time lag of the storage device side clock 22c inevitably occurs with the passage of time.
  • the storage device 2 includes a power supply unit 23 as shown in FIG. 2, and the power supply unit 23 receives power supplied from the commercial power supply CB through the power plug P1, and each part of the storage device main body (specifically, Power is supplied to the hard disk drive 21 and the storage device side controller 22).
  • the storage device body is a portion of the storage device 2 excluding the power supply unit 23.
  • the commercial power source CB is an example of an external power source. When the power switch SW1 disposed in the line connecting the power plug P1 and the power source unit 23 is turned on, the commercial power source CB is connected to the power source unit 23 from the commercial power source CB. The line is energized and the power supply unit 23 is activated.
  • the storage device 2 is provided with a USB jack 24 as an attachment port, and the dongle 4 is connected to the USB jack 24.
  • the dongle 4 corresponds to a power-supplied device and is detachable from the USB jack 24.
  • the power supplied from the power supply unit 23 is supplied to the dongle 4. More specifically, a voltage of about 5 V is applied to the circuit inside the dongle 4.
  • two cables extend from the circuit inside the dongle 4 toward the outside of the dongle 4, and a contact is formed at the end of each cable.
  • a contact point formed at the end of each cable is connected to an input terminal provided in the monitoring device 3. For this reason, while the power supplied from the power supply unit 23 is supplied to the dongle 4, the dongle 4 (specifically, a contact formed at the end of the cable extending from the dongle 4) is connected to the input terminal. A voltage of 5V will be applied.
  • the monitoring device 3 monitors the state of the security camera 1 and the storage device 2, and is connected to the storage device 2 by wire. More specifically, the error signal output from the storage device 2 (strictly speaking, the storage device-side controller 22) is input to the input terminal of the monitoring device 3. When the error signal is input, the monitoring device 3 outputs an alarm signal to the management terminal 5 placed in the management center or the portable terminal 6 held by the administrator through the external communication network GN such as the Internet.
  • the management center is a building different from the building where the storage device 2 and the monitoring device 3 are installed.
  • the management center is a company that manages the system S (for example, a security company or system management and maintenance). This is a facility set up by the company to manage this system S.
  • the administrator is an administrator of the system S, and is, for example, a person in charge of performing maintenance and inspection work of the system S.
  • the management terminal 5 of the management center or the portable terminal 6 of the manager When the management terminal 5 of the management center or the portable terminal 6 of the manager receives the alarm signal, character information or image information indicating the occurrence of an abnormality in the storage device 2 is displayed on the monitor of the management terminal 5 or the screen of the portable terminal 6. It will be displayed.
  • the operation of the monitoring device 3 when an abnormality occurs in the state of the security camera 1 or the storage device 2 is limited to outputting an alarm signal to the management terminal 5 of the management center or the portable terminal 6 owned by the administrator. Instead, an alarm sound may be generated together with the output of the alarm signal.
  • the monitoring device 3 is activated by being supplied with power from the commercial power supply CB, and has a super capacitor 3a as a power storage device therein as shown in FIG.
  • the supercapacitor 3a stores electric power while power from the commercial power source CB is supplied to the monitoring device 3, and discharges when power supply from the commercial power source CB is interrupted.
  • the monitoring device 3 stores a part of the supplied power in the supercapacitor 3a while the power is supplied from the commercial power source CB to the monitoring device 3, and the power is stored up to a predetermined capacity. Thereafter, the supercapacitor 3a is held in that state.
  • the supercapacitor 3a performs discharge through the discharge line, and supplies the discharge power to the monitoring device-side controller 31 described later.
  • the monitoring device 3 can maintain the start-up state even during a power failure for a period commensurate with the power stored in the supercapacitor 3a.
  • the monitoring apparatus 3 performs the below-mentioned process at the time of a power failure during the period which has started even if it is a power failure. Note that when the electric power stored in the supercapacitor 3a is completely discharged, the state of the monitoring device 3 is switched from the activated state to the deactivated state.
  • the monitoring device 3 includes a monitoring device-side controller 31, and the monitoring device-side controller 31 performs each function of the monitoring device 3 including output of an alarm signal. To execute the process. More specifically, the monitoring device side controller 31 includes a CPU, a memory, a control circuit, and the like (not shown).
  • the monitoring device-side controller 31 constitutes an execution unit that executes predetermined processing in order to exhibit the function of the monitoring device 3.
  • the execution unit includes an error signal reception unit 31a, a power supply unit abnormality determination unit 31b, an alarm signal output unit 31c, a keep alive signal output unit 31d, a monitoring device side clock 31e, and a monitoring device side correction mechanism.
  • 31f, a data distribution unit 31g, and a power failure processing execution unit 31h are included.
  • the error signal receiver 31a receives the error signal output from the storage device 2.
  • the error signal is received by being input to an input terminal included in the monitoring device 3.
  • the power supply unit abnormality determination unit 31b determines whether or not the power supply unit 23 of the storage device 2 is normally activated. In other words, the power supply unit abnormality determination unit 31b monitors the state of the storage device 2 by determining whether power is supplied from the power supply unit 23 to the storage device body.
  • the power supply unit abnormality determination unit 31b detects whether a voltage is applied to the input terminal to which the above-described dongle 4 is connected among the input terminals of the monitoring device 3.
  • a voltage is applied to the input terminal.
  • the power supply unit abnormality determination unit 31b determines that power is being supplied from the power supply unit 23 to the storage device body.
  • the power supply unit abnormality determination unit 31b determines that power is not supplied from the power supply unit 23 to the storage device body.
  • the power supply state of the dongle 4 attached to the USB jack formed in the storage device 2 is detected in order to check whether or not the power supply unit 23 is in an abnormal state.
  • the power supply unit 23 is not activated, specifically, when the power switch SW1 is turned off or when the power supply unit 23 is out of order, the dongle 4 is not in the power supply state. Determines that the power supply unit 23 is in an abnormal state.
  • the present system S it is possible to monitor the presence or absence of an abnormality in the power supply unit 23 of the storage device 2 by attaching the dongle 4 to the USB jack 24 of the storage device 2 and checking the power supply state of the dongle 4. Become. Thereby, in this system S, the system configuration becomes simple, it can be handled more easily, the versatility is high, and the abnormality of the power supply unit 23 can be reliably detected with an inexpensive configuration.
  • a USB connection type dongle 4 that is easy to connect is used as a device for monitoring the presence or absence of an abnormality in the power supply unit 23.
  • a USB connection type device has high versatility and is easier to handle than other connection method devices.
  • the dongle 4 is manufactured at a relatively low cost, and it is possible to detect an abnormality of the power supply unit 23 easily and reliably by detecting the power supply state.
  • the power supply unit abnormality determination unit 31b includes a control circuit for detecting the power supply state of the dongle 4, and the system S includes a control circuit having the configuration illustrated in FIG.
  • the configuration of FIG. 6 is merely an example of a control circuit, and any configuration that can detect the power supply state of the dongle 4 can be used without particular limitation.
  • symbol BZ indicates a buzzer
  • symbol RY indicates a relay
  • symbols U1, U2, and U3 indicate digital ICs.
  • among the digital ICs those with the same symbol correspond to the same digital IC.
  • the numbers written near the digital IC and the relay indicate the corresponding numbers of the connection pins.
  • the alarm signal output unit 31c transmits an alarm signal to the management terminal 5 of the management center or the portable terminal 6 of the administrator when the error signal receiving unit 31a receives the error signal from the storage device 2. Further, in the present system S, when the power supply unit abnormality determination unit 31b detects an abnormality in the power supply unit 23 of the storage device 2, the alarm signal output unit 31c also sends the management center management terminal 5 or the administrator mobile terminal 6 to the management unit 5. An alarm signal is sent to the destination.
  • the keep alive signal output unit 31d periodically outputs a keep alive signal to the management terminal 5 of the management center while the monitoring device 3 is in the activated state.
  • the keep-alive signal corresponds to a communication signal and is a signal output to indicate that the monitoring device 3 is normally activated.
  • the keep-alive signal is output once a day.
  • the output frequency of the keep-alive signal is not limited to the above frequency, and can be arbitrarily set.
  • the management terminal 5 determines that an abnormality has occurred in the monitoring device 3, and displays on the monitor of the management terminal 5 character information indicating the occurrence of the abnormality. Display image information.
  • the monitoring device side clock 31e indicates a time managed by the monitoring device 3 internally, and is a so-called real time clock.
  • the monitoring device side correction mechanism 31f corrects the time represented by the monitoring device side clock 31e. More specifically, the monitoring device side correction mechanism 31f acquires reference time information transmitted from a base station of a mobile phone company that is an external base station. And the monitoring apparatus side correction
  • the reference time information is time information superimposed on a radio signal transmitted from a base station of a mobile phone company, and indicates a reference time used as a reference when correcting the time.
  • the monitoring device side clock 31e is corrected with reference to the reference time information transmitted from the base station of the mobile phone company, the monitoring device side clock 31e can be easily corrected.
  • the time correction process by the monitoring device side correction mechanism 31f is periodically executed, but it is preferable that the execution frequency is about once a week.
  • the execution frequency of the time correction process is not limited to the above frequency and can be arbitrarily set.
  • the data distribution unit 31g distributes the corrected time data to the storage device 2 after execution of the time correction process by the monitoring device side correction mechanism 31f.
  • the corrected time data is data indicating the time of the monitoring device side clock 31e after being corrected by the monitoring device side correction mechanism 31f.
  • the storage device side correction mechanism 22e described above corrects the time of the storage device side clock 22c based on the corrected time data. More specifically, the storage device 2 executes a process of correcting the time of the storage device side clock 22c so as to coincide with the time indicated by the corrected time data with the reception of the corrected time data.
  • the distribution of the corrected time data may be automatically executed immediately after the execution of the time correction process by the monitoring device side correction mechanism 31f, or a data distribution request is transmitted from the storage device 2 side. It may be executed when the request is accepted.
  • the monitoring device 3 functions as an NTP server when the management time on the storage device 2 side is corrected.
  • the time correction processing is executed on the monitoring device 3 side, the monitoring device 3 interlocks with this.
  • the time correction process is also executed on the storage device 2 side.
  • the storage device side clock 22c is also corrected to coincide with the reference time in the same manner as the monitoring device side clock 31e.
  • the time of the storage device side clock 22c is corrected based on the corrected time of the monitoring device side clock 31e, so that the time can be easily corrected.
  • the power failure processing execution unit 31h executes power failure processing when power supply from the commercial power source CB is interrupted due to a power failure.
  • the process at the time of a power failure is a series of processes executed to notify the management center when the power supply from the commercial power source CB to the monitoring device 3 is interrupted due to a power failure.
  • the processing execution part 31h at the time of a power failure detects a power failure during a period when the monitoring device 3 is in an activated state even though it is a power failure. Further, when a power failure is detected, the power failure processing execution unit 31h transmits a notification signal for notifying that the power supply from the commercial power supply CB is interrupted toward the management terminal 5 of the management center.
  • the series of processes described above corresponds to the process at power failure.
  • the present system S it is possible to maintain the start-up state of the monitoring device 3 only for a certain period even when a power failure occurs, and to execute the power failure process during the certain period. Thereby, in this system S, it becomes possible to report to the management center that the power supply to the security camera 1, the storage device 2, and the monitoring device 3 was interrupted by a power failure.
  • the monitoring apparatus 3 it is good also as having a several LAN port besides having said structure. If the monitoring device 3 has a LAN port, bidirectional communication is possible with an external communication device. For example, information for alive monitoring is transmitted to the manager by SNMP (Simple Network Management Protocol), or The connection state between the monitoring device 3 and the external communication network can be confirmed by PING.
  • SNMP Simple Network Management Protocol
  • this monitoring method a monitoring process for monitoring the states of the security camera 1 and the storage device 2 is executed. This monitoring process is executed by the monitoring device 3 described above, and is always executed while the monitoring device 3 is activated.
  • the monitoring process proceeds according to the procedure shown in FIG. 7, and the monitoring device 3 monitors whether or not an error signal is output from the storage device 2 during the execution of the monitoring process (S001). And the monitoring apparatus 3 will output an alarm signal toward the management terminal 5 of a management center, or the portable terminal 6 of an administrator, if an error signal is received (S002).
  • the monitoring device 3 determines whether or not power is supplied from the power supply unit 23 to the storage device body in order to monitor the state of the storage device 2. More specifically, during execution of the monitoring process, the dongle 4 is held in a state of being connected to the USB jack 24 formed in the storage device 2. As described above, the dongle 4 is supplied with power supplied from the power supply unit 23 when the power supply unit 23 is attached to the USB jack 24 while supplying power to the storage device body. . On the other hand, when there is an input terminal to which the dongle 4 is connected among the input terminals of the monitoring device 3 and the power supplied from the power supply unit 23 is fed to the dongle 4, a voltage is applied to the input terminal. Specifically, a voltage of about 5V is applied.
  • the monitoring device 3 detects whether or not voltage is applied to the input terminal to which the dongle 4 is connected and detects the power supply state of the dongle 4, thereby determining whether power is supplied from the power supply unit 23 to the storage device body. Is determined (S003). At this time, if the magnitude of the voltage applied to the input terminal to which the dongle 4 is connected is not a normal value, the monitoring device 3 outputs an alarm signal toward the management terminal 5 of the management center or the portable terminal 6 of the administrator. (S004).
  • the monitoring device 3 periodically outputs a keep alive signal to the management terminal 5 of the management center during execution of the monitoring process. That is, the monitoring device 3 outputs a keep alive signal to the management terminal 5 (S006) whenever a predetermined time elapses during the period in which the monitoring device is in the activated state (S005).
  • a process for correcting the time managed in each of the storage device 2 and the monitoring apparatus 3, that is, a time correction process is periodically executed.
  • the time correction process first, as shown in FIG. 8, the monitoring device 3 receives the reference time information superimposed on the radio signal transmitted from the base station of the mobile phone company (S011). Thereafter, in the monitoring device 3, a process of correcting the time of the monitoring device side clock 31e is executed (S012). With this process, the time of the monitoring device side clock 31e is corrected to coincide with the time indicated by the reference time information.
  • the storage device 2 requests the monitoring device 3 to distribute corrected time data indicating the corrected time of the monitoring device side clock 31e (S013).
  • the corrected time data is transmitted to the storage device 2 by the function of the monitoring device 3 (specifically, the data distribution unit 31g) (S014).
  • processing for correcting the time of the storage device side clock 22c based on the corrected time data is executed (S016). With this process, the time of the storage device side clock 22c is corrected to coincide with the time indicated by the corrected time data.
  • the above-described power failure process is executed according to the procedure shown in FIG. More specifically, when the power supply from the commercial power supply CB to the monitoring device 3 is interrupted due to a power failure, the supercapacitor 3a built in the monitoring device 3 starts discharging through the discharge line (S021). As a result, the monitoring device 3 continues to maintain the activated state even during a power failure due to the discharge power from the supercapacitor 3a.
  • the monitoring device 3 After the discharge is started, the monitoring device 3 first detects a power failure (S022).
  • a means for detecting a power failure a known means can be used. For example, a sensor that detects power supply from the commercial power supply CB and outputs a signal is installed, and an output signal from the sensor to the monitoring device 3 is detected. It is good also as detecting a power failure by having stopped. And the monitoring apparatus 3 will transmit the alerting
  • the management center By executing the process at the time of stop according to the above procedure, the management center is notified that the power supply to the security camera 1, the storage device 2, and the monitoring device 3 has been interrupted due to a power failure, and is installed in the management center. It is possible to recognize the occurrence of a power failure through the monitor of the management terminal 5.
  • the monitoring apparatus 3 outputs an alarm signal toward the management terminal 5 installed in the building (specifically management center) different from the building in which the monitoring apparatus 3 is installed.
  • the device that is the output destination of the alarm signal (that is, the terminal corresponding to the management terminal 5) may be in the same building as the system S.
  • the terminal corresponding to the management terminal may be placed in a room different from the room in which the monitoring device 3 is placed while being placed in the same building as the building in which the monitoring device 3 is placed.
  • the management terminal is arranged in a room different from the room in which the monitoring device 3 is placed, so that the state of each of the storage device 2 and the monitoring device 3 can be remotely monitored.
  • the present invention is not limited to this. For example, at the time when a notification signal for notifying that the power supply from the commercial power supply CB is interrupted is transmitted, the power supply from the commercial power supply CB is restored and monitored. It may be the time when the device 3 is restarted. In this case, it is not necessary to mount the supercapacitor 3a on the monitoring device 3, and it is possible to provide a cheaper monitoring device 3.
  • the power-supplied device attached to the storage device 2 to detect an abnormality in the power supply unit 23 of the storage device 2 is connected to the USB jack 24 formed in the storage device 2.
  • the dongle 4 is supplied with power supplied from the power supply unit 23.
  • the power-supplied device is detachable from the mounting opening formed in the storage device 2 and can be supplied with power supplied from the power supply unit 23 when mounted in the mounting opening.
  • it may be connected to an IEEE1394 jack.
  • the alarm signal is transmitted from the monitoring device 3 to the management terminal 5 of the management center or the portable terminal 6 of the administrator through an external communication network such as the Internet.
  • an ASP Application Service
  • an alarm signal output from the monitoring device 3 is received by an ASP server (not shown).
  • data for popping up the information indicating the occurrence of abnormality on the monitor of the management terminal 5 is transmitted from the ASP server to the management terminal 5 of the management center, or an abnormality is detected from the ASP server to the portable terminal 6 of the administrator. Deliver e-mails with information on occurrences.
  • the ASP server may be interposed when the alarm signal is transmitted from the monitoring device 3 to the management terminal 5 of the management center or the portable terminal 6 of the administrator.
  • the ASP server receives the alarm signal, data for displaying information indicating the occurrence of an abnormality on the monitor or the like is generated by the ASP server. Therefore, by accessing the ASP server, other than the management terminal 5 and the mobile terminal 6 It is possible to display information on the occurrence of an abnormality on a monitor or the like even from a terminal.
  • the monitoring device 3 distributes information or outputs an alarm signal to the management terminal 5 of the management center or the portable terminal 6 of the administrator through the external communication network GN.
  • the external communication network GN in addition to the Internet, a communication network via a base station of a mobile phone company, that is, a mobile communication network such as a 3G line or a 4G line may be used.
  • the configuration of the storage device 2 has been described with reference to FIG. 2, but this diagram does not limit the specific configuration such as the arrangement of devices in the storage device 2.
  • the hard disk drive 21, the storage device side controller 22, and the power supply unit 23 may all be housed in the housing of the storage device 2, or the hard disk drive 21, the storage device side controller 22 and the power supply unit. Any one of 23 may be outside the housing and may be provided in a so-called external form.

Abstract

[Problem] To provide a monitoring system which, with a low cost configuration, allows for easy handling and higher versatility, and can reliably detect the abnormality of a power supply unit in a recording device. [Solution] Provided is a monitoring system (S) which monitors the state of a storage device (2) that acquires and stores an image signal from a security camera (1), said monitoring system (S) being provided with a dongle (4) which receives power from a power supply unit (23) provided in the storage device (2) when the dongle is inserted into a USB port (24) formed in the storage device (2) while the power supply unit (23) is supplying the storage device body with power, and a monitoring device (3) for monitoring the state of the storage device by detecting the state of power supplied to the dongle (4) to determine the presence or absence of power being supplied to the storage device body from the power supply unit (23).

Description

監視システム、監視方法及び監視装置Monitoring system, monitoring method and monitoring apparatus
　本発明は、監視システム、監視方法及び監視装置に係り、特に、撮像装置から映像信号
を取得して記憶する記憶装置の状態が正常であるか否かを監視する監視システム、監視方法及び監視装置に関する。 The present invention relates to a monitoring system, a monitoring method, and a monitoring device, and more particularly, a monitoring system, a monitoring method, and a monitoring device that monitor whether or not a storage device that acquires and stores a video signal from an imaging device is normal. About.
　防犯カメラ等の撮像装置と当該撮像装置から映像信号を取得して記憶する記憶装置とを有するシステムは、既に周知である。このようなシステムでは、通常、撮像装置や記憶装置に発生した不具合（トラブル）を検知する目的から監視装置が設置される。この監視装置が設置されることにより、撮像装置や記憶装置の状態が異常状態にあったとしても、それを早期に検知することができ、異常状態を改善して正常な状態に復帰することが可能となる。 A system having an imaging device such as a security camera and a storage device that acquires and stores a video signal from the imaging device is already well known. In such a system, a monitoring device is usually installed for the purpose of detecting a problem (trouble) that has occurred in the imaging device or the storage device. By installing this monitoring device, even if the state of the imaging device or storage device is in an abnormal state, it can be detected at an early stage, and the abnormal state can be improved and returned to a normal state. It becomes possible.
　ところで、防犯の観点から撮像装置が撮像した映像を確実に記憶装置に記憶する必要がある。したがって、上記の監視装置は、記憶装置が映像を正常に記憶することができる状態にあるか否かを監視し、特に、記憶装置が正常に起動しているかどうかを監視することになる。 By the way, from the viewpoint of crime prevention, it is necessary to securely store the image captured by the imaging device in the storage device. Therefore, the above monitoring device monitors whether or not the storage device is in a state where the video can be normally stored, and particularly monitors whether or not the storage device is normally activated.
　より具体的に説明すると、一般的な記憶装置は、装置内各部に電力を供給する電源ユニットを内蔵しているが、この電源ユニットが停止または故障していると記憶装置に映像が記憶されなくなる。このため、監視装置は、電源ユニットの異常状態を検知することになるが、電源ユニットに異常が生じてしまうと記憶装置が正常に動作できなくなるので、記憶装置側から出力される信号を受けとって電源ユニットの異常を検知しようとすることは、技術的に困難となる。以上のような事情により、カメラの撮影映像を記憶するシステムでは、電源ユニットの異常を検知する手段が求められている。 More specifically, a general storage device has a built-in power supply unit that supplies power to each part in the device, but if the power supply unit is stopped or fails, no video is stored in the storage device. . For this reason, the monitoring device detects an abnormal state of the power supply unit. However, if the abnormality occurs in the power supply unit, the storage device cannot operate normally, and therefore receives a signal output from the storage device side. It is technically difficult to detect an abnormality in the power supply unit. Due to the circumstances as described above, a system for storing an image taken by a camera requires a means for detecting an abnormality of the power supply unit.
　電源ユニットの異常状態を検知する手段としては、例えば特許文献１に開示された技術のように、電源とそれに接続する機器との間に配置された状態で当該機器の使用電力を計測する計測器が挙げられる。特許文献１に開示された電力計測器は、いわゆるスマートタップであり、電力使用機器のプラグが差し込まれるコンセント部と、建物内の電源コンセントに差し込まれるプラグ部と、使用電力を計測するセンサ部と、計測結果を送信する送信部とを備える。このような構成の電力計測器を用いれば、記憶装置の電源ユニットの使用電力を把握し、その変動から電源ユニットの異常の有無を判定することが可能となる。 As a means for detecting the abnormal state of the power supply unit, for example, as in the technique disclosed in Patent Document 1, a measuring instrument that measures the power used by the device in a state of being arranged between the power supply and the device connected thereto Is mentioned. The power measuring instrument disclosed in Patent Document 1 is a so-called smart tap, and includes an outlet portion into which a plug of a power usage device is plugged, a plug portion to be plugged into a power outlet in a building, and a sensor portion that measures power usage. And a transmission unit for transmitting the measurement result. By using the power meter having such a configuration, it is possible to grasp the power used by the power supply unit of the storage device and determine whether there is an abnormality in the power supply unit from the fluctuation.
特開２０１０－１３０８７３号公報JP 2010-130873 A
　しかしながら、上述した特許文献１に開示された電力計測器については、プラグの挿抜によって計測対象機器を切り替えられるので流用可能な計測機器ではあるものの、比較的割高なものとなる。また、特許文献１に開示された電力計測器は、計測結果を送信する送信部として、情報伝送媒体として赤外線を発信する部品を用いている。このため、赤外線の受信機器等を設置しなければならず、全体的なシステム構成が複雑化してしまい、ユーザにとって取り扱い難いシステムとなってしまう虞がある。 However, the power measuring instrument disclosed in Patent Document 1 described above is a measuring device that can be diverted because the measuring target device can be switched by plugging / unplugging, but is relatively expensive. Moreover, the electric power measuring device disclosed by patent document 1 uses the component which transmits infrared rays as an information transmission medium as a transmission part which transmits a measurement result. For this reason, an infrared receiving device or the like must be installed, and the overall system configuration becomes complicated, and there is a possibility that the system is difficult to handle for the user.
　そこで、本発明は、上記の問題に鑑みてなされたものであり、その目的は、より手軽に取扱いができて汎用性が高く、かつ、安価な構成で電源ユニットの異常を確実に検知することが可能な監視システム、監視方法及び監視装置を提供することである。 Therefore, the present invention has been made in view of the above problems, and its purpose is to reliably detect abnormality of a power supply unit with a configuration that can be handled more easily, has high versatility, and is inexpensive. It is an object to provide a monitoring system, a monitoring method, and a monitoring apparatus capable of performing the above.
　前記課題は、本発明の監視システムによれば、撮像装置から映像信号を取得して記憶する記憶装置本体と、外部電源から電力を受けて前記記憶装置本体に電力を供給する電源ユニットと、を有する記憶装置と、該記憶装置に形成された装着口に対して着脱自在であり、前記電源ユニットが前記記憶装置本体に電力を供給している間に前記装着口に装着された状態にあると前記電源ユニットからの供給電力が給電される被給電機器と、該被給電機器の給電状態を検出して前記電源ユニットから前記記憶装置本体への電力供給の有無を判定することにより前記記憶装置の状態を監視する監視装置と、を有することにより解決される。
　上記のシステムでは、記憶装置に形成された装着口に装着された被給電装置の給電状態を検出し、被給電装置が給電状態でないとき、監視装置は、電源ユニットが異常状態にあると判定する。このように本発明の監視システムでは、記憶装置の電源ユニットにおける異常の有無を監視する上で、被給電装置を記憶装置に形成された装着口に装着し、被給電装置の給電状態を見るだけでよく、システム構成についても簡素なものとなる。この結果、より手軽に取扱いができて汎用性が高く、かつ、安価な構成で電源ユニットの異常を確実に検知することが可能な監視システムが実現されることになる。 According to the monitoring system of the present invention, the problem is that a storage device main body that acquires and stores a video signal from an imaging device, and a power supply unit that receives power from an external power supply and supplies the power to the storage device main body. A storage device and a mounting opening formed in the storage device, the power supply unit being mounted on the mounting opening while supplying power to the storage device main body. The power supply device to which the power supplied from the power supply unit is supplied, and the power supply state of the power supply device is detected to determine whether power is supplied from the power supply unit to the storage device body. It is solved by having a monitoring device for monitoring the state.
In the above system, the power supply state of the power-supplied device attached to the attachment port formed in the storage device is detected, and when the power-supplied device is not in the power supply state, the monitoring device determines that the power supply unit is in an abnormal state. . As described above, in the monitoring system of the present invention, in order to monitor the presence or absence of abnormality in the power supply unit of the storage device, the power-supplied device is attached to the mounting opening formed in the storage device, and only the power supply state of the power-supplied device is observed. The system configuration is also simple. As a result, a monitoring system that can be easily handled, has high versatility, and can reliably detect abnormality of the power supply unit with an inexpensive configuration is realized.
　また、上記の監視システムにおいて、前記装着口は、前記記憶装置に形成されたＵＳＢジャックであり、前記被給電機器は、前記ＵＳＢジャックにコネクトされるとともに、前記監視装置に設けられた端子に接続され、前記監視装置は、前記電源ユニットからの供給電力が前記被給電機器に給電されて前記被給電機器が接続された前記端子に電圧が印加されていると、前記電源ユニットから前記記憶装置本体への電力供給がなされていると判定することとしてもよい。
　以上の構成であれば、電源ユニットの異常を検知するために記憶装置に装着される被給電機器がＵＳＢ接続型の機器であるので、より汎用性が高く、かつ、より取り扱い易い監視システムが実現される。 In the monitoring system, the mounting port is a USB jack formed in the storage device, and the power-supplied device is connected to the USB jack and connected to a terminal provided in the monitoring device. The monitoring device is configured such that when the power supplied from the power supply unit is supplied to the power-supplied device and a voltage is applied to the terminal to which the power-supplied device is connected, the power supply unit supplies the power to the storage device body. It is good also as determining with the electric power supply to being made.
With the above configuration, the power-supplied device that is attached to the storage device in order to detect an abnormality in the power supply unit is a USB connection type device, thus realizing a monitoring system that is more versatile and easier to handle. Is done.
　また、上記の監視システムにおいて、前記監視装置は、該監視装置の内部に備えられた監視装置側時計と、該監視装置側時計が表す時刻を補正する監視装置側補正機構と、該監視装置側補正機構により補正された時刻を示す補正後時刻データを配信するデータ配信部と、を備え、前記記憶装置は、該記憶装置の内部に備えられた記憶装置側時計と、前記データ配信部により配信された前記補正後時刻データを受信するデータ受信部と、該データ受信部が受信した前記補正後時刻データに基づいて前記記憶装置側時計が表す時刻を前記補正後時刻データが示す時刻と一致するように補正する記憶装置側補正機構と、を備えることとしてもよい。
　以上の構成であれば、記憶装置が備える時計にズレが生じたとしても適宜補正されるので、撮像装置が撮像した映像に対して記憶装置が書き込む時刻情報が正確な時刻となる。これにより、撮像装置が撮像した映像の証拠能力が向上することとなる。 In the monitoring system, the monitoring device includes a monitoring device-side clock provided in the monitoring device, a monitoring device-side correction mechanism that corrects the time represented by the monitoring device-side clock, and the monitoring device side. A data distribution unit that distributes corrected time data indicating the time corrected by the correction mechanism, and the storage device is distributed by the storage device-side clock provided in the storage device and the data distribution unit. A data receiving unit for receiving the corrected time data, and a time indicated by the storage device-side clock based on the corrected time data received by the data receiving unit coincides with a time indicated by the corrected time data It is good also as providing the memory | storage device side correction | amendment mechanism correct | amended so.
With the above configuration, even when a time difference of the timepiece provided in the storage device is corrected, the time information written by the storage device with respect to the video captured by the imaging device is an accurate time. Thereby, the evidence ability of the video imaged by the imaging device is improved.
　また、上記の監視システムにおいて、前記監視装置側補正機構は、外部の基地局から発信される基準時刻情報を取得し、取得した該基準時刻情報が示す時刻と一致するように前記監視装置側時計が表す時刻を補正することとしてもよい。
　以上の構成であれば、基地局から発信される基準時刻情報を参照して監視装置側時計を補正し、補正後の監視装置側時計の時刻に基づいて記憶装置側時計を補正するので、監視装置側時計や記憶装置側時計の時刻を容易に補正することが可能となる。 Further, in the above monitoring system, the monitoring device side correction mechanism acquires reference time information transmitted from an external base station, and the monitoring device side clock is matched with the time indicated by the acquired reference time information. The time represented by may be corrected.
With the above configuration, the monitoring device side clock is corrected with reference to the reference time information transmitted from the base station, and the storage device side clock is corrected based on the corrected time of the monitoring device side clock. It becomes possible to easily correct the time of the device side clock or the storage device side clock.
　また、上記の前記監視装置は、商用電源から電力が供給されることにより起動し、前記商用電源からの電力供給が中断したときには、前記監視装置に内蔵された蓄電装置から放出される電力を用いて起動状態を一定期間維持し、該一定期間中に前記商用電源からの電力供給が中断したことを報知するための報知信号を出力することとしてもよい。以上の構成であれば、停電等により撮像装置、記憶装置及び監視装置への電力供給が中断したことを報知することが可能となる。 In addition, the monitoring device starts when power is supplied from a commercial power source, and uses power released from a power storage device built in the monitoring device when power supply from the commercial power source is interrupted. Then, the activation state may be maintained for a certain period, and a notification signal for notifying that the supply of power from the commercial power source is interrupted during the certain period may be output. If it is the above structure, it will become possible to alert | report that the power supply to an imaging device, a memory | storage device, and the monitoring apparatus was interrupted by the power failure.
　また、前記監視装置は、該監視装置が置かれた室とは異なる室に置かれた管理端末と通信可能であり、前記監視装置が起動状態にある期間中、前記管理端末に向けて定期的に通信信号を出力することとしてもよい。
　以上の構成であれば、監視装置が正常に起動しているか否かを確認することができるため、監視装置自体の状態を監視することが可能となる。 Further, the monitoring device can communicate with a management terminal placed in a room different from the room where the monitoring device is placed, and periodically during the period when the monitoring device is in an activated state. It is also possible to output a communication signal.
With the above configuration, it is possible to check whether or not the monitoring device is normally activated, and thus it is possible to monitor the state of the monitoring device itself.
　また、前記の課題は、本発明の監視方法によれば、撮像装置から映像信号を取得して記憶する記憶装置本体と、外部電源から電力を受けて前記記憶装置本体に電力を供給する電源ユニットと、を有する記憶装置の状態を監視する監視処理を実行することを有し、該監視処理では、前記電源ユニットが前記記憶装置本体に電力を供給している間に前記記憶装置に形成された装着口に装着された状態にあると前記電源ユニットからの供給電力が給電される被給電機器を前記装着口に装着した状態で保持することと、前記被給電機器の給電状態を検出して前記電源ユニットから前記記憶装置本体への電力供給の有無を判定することと、を行うことにより解決される。
　上記の方法によれば、より手軽に取扱いができて汎用性が高く、かつ、安価な構成で電源ユニットの異常を確実に検知することが可能となる。 In addition, according to the monitoring method of the present invention, the above-described problem is a storage device body that acquires and stores a video signal from an imaging device, and a power supply unit that receives power from an external power supply and supplies power to the storage device body. And executing a monitoring process for monitoring a state of the storage device, wherein the monitoring unit is formed in the storage device while the power supply unit supplies power to the storage device body. Holding the power-supplied device to which the power supplied from the power supply unit is fed when mounted in the mounting port in a state of being mounted on the mounting port, detecting the power-feeding state of the power-supplied device, and This is solved by determining whether or not power is supplied from the power supply unit to the storage device body.
According to the above method, it is possible to more easily handle, have high versatility, and reliably detect abnormality of the power supply unit with an inexpensive configuration.
　また、前記の課題は、本発明の監視装置によれば、撮像装置から映像信号を取得して記憶する記憶装置本体と、外部電源から電力を受けて前記記憶装置本体に電力を供給する電源ユニットと、を有する記憶装置の状態を監視する監視装置であって、前記電源ユニットが前記記憶装置本体に電力を供給している間に前記記憶装置に形成された装着口に装着された状態にあると前記電源ユニットからの供給電力が給電される被給電機器の、給電状態を検出して前記電源ユニットから前記記憶装置本体への電力供給の有無を判定することにより解決される。
　上記の監視装置を用いることにより、より手軽に取扱いができて汎用性が高く、かつ、安価な構成で電源ユニットの異常を確実に検知することが可能となる。 In addition, according to the monitoring device of the present invention, the above-described problem is a storage device body that acquires and stores a video signal from an imaging device, and a power supply unit that receives power from an external power supply and supplies power to the storage device body. And a monitoring device that monitors the state of the storage device, wherein the power supply unit is attached to a mounting opening formed in the storage device while supplying power to the storage device body. This is solved by detecting a power supply state of a power-supplied device to which power supplied from the power supply unit is supplied and determining whether power is supplied from the power supply unit to the storage device body.
By using the above-described monitoring device, it is possible to easily detect the abnormality of the power supply unit with a configuration that can be handled more easily, has high versatility, and is inexpensive.
　本発明の監視システム、監視方法及び監視装置によれば、より手軽に取扱いができて汎用性が高く、かつ、安価な構成で電源ユニットの異常を確実に検知することが可能となる。 According to the monitoring system, the monitoring method, and the monitoring apparatus of the present invention, it is possible to more easily handle, have high versatility, and reliably detect abnormality of the power supply unit with an inexpensive configuration.
本発明に係る監視システムの全体構成を示す図である。It is a figure showing the whole surveillance system composition concerning the present invention. 本発明に係る記憶装置の構成を示すブロック図である。It is a block diagram which shows the structure of the memory | storage device which concerns on this invention. 記憶装置が備えるコントローラの機能を示す図である。It is a figure which shows the function of the controller with which a memory | storage device is provided. 本発明に係る監視装置の構成を示すブロック図である。It is a block diagram which shows the structure of the monitoring apparatus which concerns on this invention. 監視装置が備えるコントローラの機能を示す図である。It is a figure which shows the function of the controller with which a monitoring apparatus is provided. 被給電装置の給電状態を検出する回路の構成例を示す図である。It is a figure which shows the structural example of the circuit which detects the electric power feeding state of a to-be-powered apparatus. 監視処理の流れを示す図である。It is a figure which shows the flow of a monitoring process. 時刻補正処理の流れを示す図である。It is a figure which shows the flow of a time correction process. 停電時処理の流れを示す図である。It is a figure which shows the flow of a process at the time of a power failure.
　以下、本発明の一実施形態（以下、本実施形態）に係る監視システム、監視方法及び監視装置について、図を参照しながら説明する。本実施形態に係る監視システム（以下、本システム）Ｓは、撮像装置の一例である防犯カメラ１、及び、その撮影映像を記憶する記憶装置２の各々の状態を監視するものである。防犯カメラ１は、建物内の撮影箇所を撮影し、その映像信号が記憶装置２に伝送されて同装置２に記憶される。なお、建物とは、戸建て住宅、マンション、商業ビル、デパートや映画館等の商業施設、病院等の公共施設を含む建築物である。 Hereinafter, a monitoring system, a monitoring method, and a monitoring apparatus according to an embodiment of the present invention (hereinafter, this embodiment) will be described with reference to the drawings. A monitoring system (hereinafter, this system) S according to the present embodiment monitors the states of a security camera 1 that is an example of an imaging device and a storage device 2 that stores the captured video. The security camera 1 shoots a shooting location in a building, and the video signal is transmitted to the storage device 2 and stored in the device 2. A building is a building including a detached house, a condominium, a commercial building, a commercial facility such as a department store or a movie theater, and a public facility such as a hospital.
　本システムＳの構成について説明すると、本システムＳは、図１に示すように、防犯カメラ１と、記憶装置２と、監視装置３と、ＵＳＢ接続型のドングル（以下、単にドングル）４とを主たる構成要素として有する。これらの機器は、同一建物内に配置されており、防犯カメラ１は、建物内において所定の撮影箇所を撮影するのに好適な場所に設置されており、記憶装置２及び監視装置３は、建物内に設けられた監視室に設置されている。なお、図１では、防犯カメラ１、記憶装置２及び監視装置３の各々の設置台数が１台であるケースを図示しているが、各機器の台数については特に制限なく、適宜な台数に設定することが可能である。また、防犯カメラ１、記憶装置２及び監視装置３については、それぞれが同一建物内に配置されているケースに限定されず、例えば、防犯カメラ１と記憶装置２とが互いに異なる建物内に設置されていることとしてもよい。 The configuration of the system S will be described. The system S includes a security camera 1, a storage device 2, a monitoring device 3, and a USB connection dongle (hereinafter simply referred to as a dongle) 4, as shown in FIG. It has as a main component. These devices are arranged in the same building, the security camera 1 is installed in a place suitable for photographing a predetermined shooting location in the building, and the storage device 2 and the monitoring device 3 are provided in the building. It is installed in the monitoring room provided inside. In addition, in FIG. 1, although the case where each installation number of the security camera 1, the storage device 2, and the monitoring device 3 is 1 is illustrated, the number of each device is not particularly limited and is set to an appropriate number. Is possible. Further, the security camera 1, the storage device 2, and the monitoring device 3 are not limited to the case where they are arranged in the same building. For example, the security camera 1 and the storage device 2 are installed in different buildings. It is good to be.
　防犯カメラ１は、アナログ型のビデオカメラであり、有線あるいは無線にて記憶装置２と接続されている。そして、防犯カメラ１は、予め設定された撮影箇所の映像を撮影し、その撮影映像を示す映像信号を記憶装置２に向けて出力する。なお、防犯カメラ１については、アナログ型のビデオカメラに限定されず、デジタル型のビデオカメラ（いわゆるＩＰカメラ）であってもよい。換言すると、防犯カメラ１から記憶装置２に向けて出力される映像信号については、アナログ信号であってもデジタル信号であってもよい。 The security camera 1 is an analog video camera and is connected to the storage device 2 by wire or wirelessly. Then, the security camera 1 captures a video of a preset shooting location and outputs a video signal indicating the captured video to the storage device 2. The security camera 1 is not limited to an analog video camera, and may be a digital video camera (so-called IP camera). In other words, the video signal output from the security camera 1 toward the storage device 2 may be an analog signal or a digital signal.
　記憶装置２は、防犯カメラ１から伝送されてくる映像信号を記憶しておく装置であり、防犯カメラ１がアナログ型である本システムＳではデジタルビデオレコーダにより構成される。ただし、これに限定されるものではなく、例えば防犯カメラ１がＩＰカメラである場合には記憶装置２がネットワークビデオレコーダにより構成されることとしてもよい。 The storage device 2 is a device for storing a video signal transmitted from the security camera 1, and is configured by a digital video recorder in the system S in which the security camera 1 is an analog type. However, the present invention is not limited to this. For example, when the security camera 1 is an IP camera, the storage device 2 may be configured by a network video recorder.
　記憶装置２は、図２に示すように、ハードディスクドライブ（図２中、ＨＤＤと表記）２１を内部に備え、防犯カメラ１からの映像信号を受信するとハードディスクドライブ２１に記憶する。なお、図２に示すように、記憶装置２には記憶装置側コントローラ２２が備えられており、この記憶装置側コントローラ２２は、映像信号の受信をはじめとする記憶装置２が具備する各機能を発揮するための処理を実行する。具体的に説明すると、記憶装置側コントローラ２２は、不図示のＣＰＵ、メモリ及び制御回路等からなる。 As shown in FIG. 2, the storage device 2 includes a hard disk drive (denoted as HDD in FIG. 2) 21 and stores the video signal from the security camera 1 in the hard disk drive 21. As shown in FIG. 2, the storage device 2 includes a storage device-side controller 22, and the storage device-side controller 22 has functions of the storage device 2 including reception of video signals. Execute the process to demonstrate. More specifically, the storage device side controller 22 includes a CPU, a memory, a control circuit, and the like (not shown).
　記憶装置２の機能について図３を参照しながら詳しく説明する。前述したように、記憶装置側コントローラ２２が各種処理を実行すると、記憶装置２が具備する各機能が発揮される。換言すると、記憶装置側コントローラ２２は、記憶装置２の機能を発揮するために所定の処理を実行する実行部を構成している。当該実行部には、図３に示すように、映像信号受信部２２ａ、エラー信号出力部２２ｂ、記憶装置側時計２２ｃ、データ受信部２２ｄ、記憶装置側補正機構２２ｅが含まれる。 The function of the storage device 2 will be described in detail with reference to FIG. As described above, when the storage device side controller 22 executes various processes, each function of the storage device 2 is exhibited. In other words, the storage device-side controller 22 constitutes an execution unit that executes predetermined processing in order to exhibit the function of the storage device 2. As shown in FIG. 3, the execution unit includes a video signal reception unit 22a, an error signal output unit 22b, a storage device side clock 22c, a data reception unit 22d, and a storage device side correction mechanism 22e.
　映像信号受信部２２ａは、防犯カメラ１から伝送されてくる映像信号を受信してハードディスクドライブ２１に記憶させるものである。
　エラー信号出力部２２ｂは、映像信号の記憶に関する異常が生じたときに、これを検知して監視装置３に向けてエラー信号を出力するものである。なお、映像信号の記憶に関する異常としては、例えば、ハードディスクドライブ２１に備えられた自己診断機能により機器故障等の異常が検出されたこと、防犯カメラ１からの映像信号の入力が途絶えることが挙げられる。 The video signal receiving unit 22 a receives the video signal transmitted from the security camera 1 and stores it in the hard disk drive 21.
The error signal output unit 22b detects an abnormality related to the storage of the video signal and outputs an error signal to the monitoring device 3 when the abnormality is detected. Examples of the abnormality relating to the storage of the video signal include that an abnormality such as a device failure is detected by the self-diagnosis function provided in the hard disk drive 21 and that the input of the video signal from the security camera 1 is interrupted. .
　記憶装置側時計２２ｃは、記憶装置２が内部で管理する時刻を示すものであり、所謂リアルタイムクロックである。この記憶装置側時計２２ｃが表す時刻は、防犯カメラ１から伝送されてくる映像信号をハードディスクドライブ２１に記憶させる際にタイムスタンプとして上記映像信号に書き込まれる。
　データ受信部２２ｄは、監視装置３が送信する補正後時刻データを受信するものである。補正後時刻データについては後述する。 The storage device side clock 22c indicates a time managed internally by the storage device 2, and is a so-called real time clock. The time represented by the storage device side clock 22c is written to the video signal as a time stamp when the video signal transmitted from the security camera 1 is stored in the hard disk drive 21.
The data receiver 22d receives the corrected time data transmitted by the monitoring device 3. The corrected time data will be described later.
　記憶装置側補正機構２２ｅは、受信した補正後時刻データに基づいて記憶装置側時計２２ｃが表す時刻を補正するものである。この記憶装置側補正機構２２ｅが備えられていることにより、記憶装置側時計２２ｃの時刻が本来の時刻（具体的には、後述する基準時刻）に対してずれたとしても、そのズレを是正するように記憶装置側時計２２ｃの時刻を補正することが可能となる。このように時刻のズレが是正されることにより、防犯カメラ１の映像に対して書き込まれるタイムスタンプが正確な時刻となるので、防犯カメラ１の撮影映像の証拠能力が向上する。以上の効果は、時間の経過に伴って記憶装置側時計２２ｃの時刻のズレが不可避的に生じる場合には特に有効である。 The storage device side correction mechanism 22e corrects the time represented by the storage device side clock 22c based on the received corrected time data. By providing the storage device side correction mechanism 22e, even if the time of the storage device side clock 22c deviates from the original time (specifically, a reference time described later), the deviation is corrected. Thus, the time of the storage device side clock 22c can be corrected. By correcting the time shift in this way, the time stamp written on the video of the security camera 1 becomes an accurate time, so that the evidence capability of the video captured by the security camera 1 is improved. The above effects are particularly effective when the time lag of the storage device side clock 22c inevitably occurs with the passage of time.
　また、記憶装置２は、図２に示すように電源ユニット２３を備え、この電源ユニット２３は、電源プラグＰ１を通じて商用電源ＣＢから供給される電力を受けて記憶装置本体各部（具体的には、ハードディスクドライブ２１及び記憶装置側コントローラ２２）に電力を供給する。ここで、記憶装置本体とは、記憶装置２のうち、電源ユニット２３を除く部分のことである。また、商用電源ＣＢは、外部電源の一例であり、電源プラグＰ１と電源ユニット２３との間を連結するライン中に配置された電源スイッチＳＷ１がオンとなると、商用電源ＣＢから電源ユニット２３までのラインが通電状態となり電源ユニット２３が起動するようになる。 In addition, the storage device 2 includes a power supply unit 23 as shown in FIG. 2, and the power supply unit 23 receives power supplied from the commercial power supply CB through the power plug P1, and each part of the storage device main body (specifically, Power is supplied to the hard disk drive 21 and the storage device side controller 22). Here, the storage device body is a portion of the storage device 2 excluding the power supply unit 23. The commercial power source CB is an example of an external power source. When the power switch SW1 disposed in the line connecting the power plug P1 and the power source unit 23 is turned on, the commercial power source CB is connected to the power source unit 23 from the commercial power source CB. The line is energized and the power supply unit 23 is activated.
　さらに、記憶装置２には、図１及び２に示すように装着口としてのＵＳＢジャック２４が形成されており、当該ＵＳＢジャック２４にはドングル４がコネクトされる。このドングル４は、被給電機器に相当し、ＵＳＢジャック２４に対して着脱自在である。そして、ドングル４は、電源ユニット２３が記憶装置本体に電力を供給している間にＵＳＢジャック２４にコネクトされた状態にあると電源ユニット２３からの供給電力が給電されるようになっている。具体的に説明すると、ドングル４内部の回路に対して約５Ｖの電圧が印加されるようになっている。 Further, as shown in FIGS. 1 and 2, the storage device 2 is provided with a USB jack 24 as an attachment port, and the dongle 4 is connected to the USB jack 24. The dongle 4 corresponds to a power-supplied device and is detachable from the USB jack 24. When the power supply unit 23 is connected to the USB jack 24 while the power supply unit 23 supplies power to the storage device main body, the power supplied from the power supply unit 23 is supplied to the dongle 4. More specifically, a voltage of about 5 V is applied to the circuit inside the dongle 4.
　なお、図２に示すように、ドングル４内部の回路からドングル４外に向かって２本のケーブルが延出しており、各ケーブルの末端部には接点が形成されている。そして、各ケーブルの末端部に形成された接点は、監視装置３に設けられた入力端子に接続されている。このため、電源ユニット２３からの供給電力がドングル４に給電されている間、ドングル４（具体的には、ドングル４から延出したケーブルの末端に形成された接点）が接続された入力端子に５Ｖの電圧が印加されることになる。 As shown in FIG. 2, two cables extend from the circuit inside the dongle 4 toward the outside of the dongle 4, and a contact is formed at the end of each cable. A contact point formed at the end of each cable is connected to an input terminal provided in the monitoring device 3. For this reason, while the power supplied from the power supply unit 23 is supplied to the dongle 4, the dongle 4 (specifically, a contact formed at the end of the cable extending from the dongle 4) is connected to the input terminal. A voltage of 5V will be applied.
　監視装置３は、防犯カメラ１や記憶装置２の状態を監視するものであり、有線にて記憶装置２と接続されている。具体的に説明すると、記憶装置２（厳密には、記憶装置側コントローラ２２）が出力した前述のエラー信号は、監視装置３の入力端子に入力される。そして、エラー信号が入力されると、監視装置３は、インターネットのような外部通信ネットワークＧＮを通じて、管理センターに置かれた管理端末５や管理者が保有する携帯端末６に向けてアラーム信号を出力する。ここで、管理センターとは、記憶装置２や監視装置３が設置された建物とは異なる建物であり、具体的には本システムＳを管理する会社（例えば、警備会社あるいはシステムの管理や保守を行う会社等）が本システムＳを管理するために設置した施設である。また、管理者とは、本システムＳの管理者のことであり、例えば、本システムＳの保守点検業務を行う担当者である。 The monitoring device 3 monitors the state of the security camera 1 and the storage device 2, and is connected to the storage device 2 by wire. More specifically, the error signal output from the storage device 2 (strictly speaking, the storage device-side controller 22) is input to the input terminal of the monitoring device 3. When the error signal is input, the monitoring device 3 outputs an alarm signal to the management terminal 5 placed in the management center or the portable terminal 6 held by the administrator through the external communication network GN such as the Internet. To do. Here, the management center is a building different from the building where the storage device 2 and the monitoring device 3 are installed. Specifically, the management center is a company that manages the system S (for example, a security company or system management and maintenance). This is a facility set up by the company to manage this system S. The administrator is an administrator of the system S, and is, for example, a person in charge of performing maintenance and inspection work of the system S.
　そして、管理センターの管理端末５や管理者の携帯端末６がアラーム信号を受信すると、管理端末５のモニタや携帯端末６の画面に、記憶装置２における異常の発生を示す文字情報や画像情報が表示されるようになる。
　なお防犯カメラ１や記憶装置２の状態に異常が生じたときの監視装置３の動作は、管理センターの管理端末５や管理者が保有する携帯端末６に向けてアラーム信号を出力することに限られず、アラーム信号の出力と併せて警報音を発生することとしてもよい。 When the management terminal 5 of the management center or the portable terminal 6 of the manager receives the alarm signal, character information or image information indicating the occurrence of an abnormality in the storage device 2 is displayed on the monitor of the management terminal 5 or the screen of the portable terminal 6. It will be displayed.
The operation of the monitoring device 3 when an abnormality occurs in the state of the security camera 1 or the storage device 2 is limited to outputting an alarm signal to the management terminal 5 of the management center or the portable terminal 6 owned by the administrator. Instead, an alarm sound may be generated together with the output of the alarm signal.
　また、監視装置３は、商用電源ＣＢから電力が供給されることにより起動する一方で、図４に示すように、蓄電装置としてのスーパーキャパシタ３ａを内部に備えている。このスーパーキャパシタ３ａは、商用電源ＣＢからの電力が監視装置３に供給されている間、電力を蓄電し、商用電源ＣＢからの電力供給が中断した際には放電する。 Further, the monitoring device 3 is activated by being supplied with power from the commercial power supply CB, and has a super capacitor 3a as a power storage device therein as shown in FIG. The supercapacitor 3a stores electric power while power from the commercial power source CB is supplied to the monitoring device 3, and discharges when power supply from the commercial power source CB is interrupted.
　より具体的に説明すると、監視装置３は、商用電源ＣＢから監視装置３への電力供給がなされている間、供給電力の一部がスーパーキャパシタ３ａに蓄電され、所定容量まで電力が蓄電されると、以降、その状態でスーパーキャパシタ３ａが保持される。一方、商用電源ＣＢから監視装置３への電力供給が中断すると、スーパーキャパシタ３ａが放電ラインを通じて放電を実行し、当該放電電力を後述する監視装置側コントローラ３１に供給するようになる。この結果、監視装置３は、スーパーキャパシタ３ａに蓄電された電力に見合う期間だけ、停電中であっても起動状態を維持することが可能となる。そして、監視装置３は、停電であっても起動している期間中に後述の停電時処理を実行する。
　なお、スーパーキャパシタ３ａに蓄電された電力が放電され尽くすと、監視装置３の状態が起動状態から停止状態に切り替わる。 More specifically, the monitoring device 3 stores a part of the supplied power in the supercapacitor 3a while the power is supplied from the commercial power source CB to the monitoring device 3, and the power is stored up to a predetermined capacity. Thereafter, the supercapacitor 3a is held in that state. On the other hand, when the power supply from the commercial power source CB to the monitoring device 3 is interrupted, the supercapacitor 3a performs discharge through the discharge line, and supplies the discharge power to the monitoring device-side controller 31 described later. As a result, the monitoring device 3 can maintain the start-up state even during a power failure for a period commensurate with the power stored in the supercapacitor 3a. And the monitoring apparatus 3 performs the below-mentioned process at the time of a power failure during the period which has started even if it is a power failure.
Note that when the electric power stored in the supercapacitor 3a is completely discharged, the state of the monitoring device 3 is switched from the activated state to the deactivated state.
　また、監視装置３は、図４に示すように、監視装置側コントローラ３１を備えており、この監視装置側コントローラ３１は、アラーム信号の出力をはじめとする監視装置３が具備する各機能を発揮するための処理を実行する。具体的に説明すると、監視装置側コントローラ３１は、不図示のＣＰＵ、メモリ及び制御回路等からなる。 As shown in FIG. 4, the monitoring device 3 includes a monitoring device-side controller 31, and the monitoring device-side controller 31 performs each function of the monitoring device 3 including output of an alarm signal. To execute the process. More specifically, the monitoring device side controller 31 includes a CPU, a memory, a control circuit, and the like (not shown).
　監視装置３の機能について図５を参照しながら詳しく説明する。前述したように、監視装置側コントローラ３１において各種処理が実行されると、監視装置３が具備する各機能が発揮される。換言すると、監視装置側コントローラ３１は、監視装置３の機能を発揮するために所定の処理を実行する実行部を構成している。当該実行部には、図５に示すように、エラー信号受信部３１ａ、電源ユニット異常判定部３１ｂ、アラーム信号出力部３１ｃ、キープアライブ信号出力部３１ｄ、監視装置側時計３１ｅ、監視装置側補正機構３１ｆ、データ配信部３１ｇ及び停電時処理実行部３１ｈが含まれる。 The function of the monitoring device 3 will be described in detail with reference to FIG. As described above, when various processes are executed in the monitoring apparatus-side controller 31, each function of the monitoring apparatus 3 is exhibited. In other words, the monitoring device-side controller 31 constitutes an execution unit that executes predetermined processing in order to exhibit the function of the monitoring device 3. As shown in FIG. 5, the execution unit includes an error signal reception unit 31a, a power supply unit abnormality determination unit 31b, an alarm signal output unit 31c, a keep alive signal output unit 31d, a monitoring device side clock 31e, and a monitoring device side correction mechanism. 31f, a data distribution unit 31g, and a power failure processing execution unit 31h are included.
　エラー信号受信部３１ａは、記憶装置２から出力されたエラー信号を受信するものである。なお、エラー信号は、監視装置３が備える入力端子に入力されることで受信される。電源ユニット異常判定部３１ｂは、記憶装置２の電源ユニット２３が正常に起動しているかどうかを判定するものである。換言すると、電源ユニット異常判定部３１ｂは、電源ユニット２３から記憶装置本体への電力供給の有無を判定することにより記憶装置２の状態を監視する。 The error signal receiver 31a receives the error signal output from the storage device 2. The error signal is received by being input to an input terminal included in the monitoring device 3. The power supply unit abnormality determination unit 31b determines whether or not the power supply unit 23 of the storage device 2 is normally activated. In other words, the power supply unit abnormality determination unit 31b monitors the state of the storage device 2 by determining whether power is supplied from the power supply unit 23 to the storage device body.
　より具体的に説明すると、電源ユニット異常判定部３１ｂは、監視装置３が有する入力端子のうち、前述したドングル４が接続された入力端子に電圧が印加されているかを検知する。ここで、電源ユニット２３からの供給電力がドングル４に給電されていると、上記の入力端子に電圧が印加されるようになる。そして、電源ユニット異常判定部３１ｂは、上記の入力端子に電圧が印加されていることを検知すると、電源ユニット２３から記憶装置本体への電力供給がなされていると判定する。反対に、上記の入力端子に電圧が印加されていないとき、電源ユニット異常判定部３１ｂは、電源ユニット２３から記憶装置本体への電力供給がなされていないと判定する。 More specifically, the power supply unit abnormality determination unit 31b detects whether a voltage is applied to the input terminal to which the above-described dongle 4 is connected among the input terminals of the monitoring device 3. Here, when the power supplied from the power supply unit 23 is fed to the dongle 4, a voltage is applied to the input terminal. When the power supply unit abnormality determination unit 31b detects that a voltage is applied to the input terminal, the power supply unit abnormality determination unit 31b determines that power is being supplied from the power supply unit 23 to the storage device body. On the other hand, when no voltage is applied to the input terminal, the power supply unit abnormality determination unit 31b determines that power is not supplied from the power supply unit 23 to the storage device body.
　すなわち、本システムＳでは、電源ユニット２３が異常状態にあるか否かを検査するために、記憶装置２に形成されたＵＳＢジャックに装着されたドングル４の給電状態を検出することとしている。そして、電源ユニット２３が起動していない場合、具体的には、電源スイッチＳＷ１がオフとなっている場合あるいは電源ユニット２３が故障していた場合にはドングル４が給電状態でないので、監視装置３は、電源ユニット２３が異常状態にあると判定する。 That is, in the present system S, the power supply state of the dongle 4 attached to the USB jack formed in the storage device 2 is detected in order to check whether or not the power supply unit 23 is in an abnormal state. When the power supply unit 23 is not activated, specifically, when the power switch SW1 is turned off or when the power supply unit 23 is out of order, the dongle 4 is not in the power supply state. Determines that the power supply unit 23 is in an abnormal state.
　以上のように本システムＳでは、ドングル４を記憶装置２のＵＳＢジャック２４に装着してドングル４の給電状態を見て、記憶装置２の電源ユニット２３における異常の有無を監視することが可能となる。これにより、本システムＳでは、システム構成が簡素なものとなり、より手軽に取扱いができて汎用性が高く、かつ、安価な構成で電源ユニット２３の異常を確実に検知することが可能となる。 As described above, in the present system S, it is possible to monitor the presence or absence of an abnormality in the power supply unit 23 of the storage device 2 by attaching the dongle 4 to the USB jack 24 of the storage device 2 and checking the power supply state of the dongle 4. Become. Thereby, in this system S, the system configuration becomes simple, it can be handled more easily, the versatility is high, and the abnormality of the power supply unit 23 can be reliably detected with an inexpensive configuration.
　より具体的に説明すると、本システムＳでは、電源ユニット２３における異常の有無を監視するための機器として、接続が容易なＵＳＢ接続型のドングル４を採用している。このようなＵＳＢ接続型の機器であれば、汎用性が高く、他の接続方式の機器と比較してより取り扱い易い。さらに、上記のドングル４は、比較的安価なコストで製造されるとともに、その給電状態を検知することで簡易に且つ確実に電源ユニット２３の異常を検知することが可能となる。 More specifically, in the present system S, a USB connection type dongle 4 that is easy to connect is used as a device for monitoring the presence or absence of an abnormality in the power supply unit 23. Such a USB connection type device has high versatility and is easier to handle than other connection method devices. Further, the dongle 4 is manufactured at a relatively low cost, and it is possible to detect an abnormality of the power supply unit 23 easily and reliably by detecting the power supply state.
　なお、電源ユニット異常判定部３１ｂは、ドングル４の給電状態を検出するための制御回路からなり、本システムＳでは図６に図示した構成の制御回路からなる。ただし、図６の構成は、あくまでも制御回路の一例であり、ドングル４の給電状態を検出することができるものであれば特に制限なく利用可能である。なお、図６中、記号ＢＺは、ブザーを示しており、記号ＲＹは、リレーを示しており、記号Ｕ１，Ｕ２，Ｕ３は、デジタルＩＣを示している。また、同図において、デジタルＩＣのうち、同記号が付されたものは同一のデジタルＩＣに該当する。さらに、同図中、デジタルＩＣやリレー付近に記された番号は、接続ピンの対応番号を示している。 The power supply unit abnormality determination unit 31b includes a control circuit for detecting the power supply state of the dongle 4, and the system S includes a control circuit having the configuration illustrated in FIG. However, the configuration of FIG. 6 is merely an example of a control circuit, and any configuration that can detect the power supply state of the dongle 4 can be used without particular limitation. In FIG. 6, symbol BZ indicates a buzzer, symbol RY indicates a relay, and symbols U1, U2, and U3 indicate digital ICs. Also, in the figure, among the digital ICs, those with the same symbol correspond to the same digital IC. Further, in the figure, the numbers written near the digital IC and the relay indicate the corresponding numbers of the connection pins.
　アラーム信号出力部３１ｃは、エラー信号受信部３１ａが記憶装置２からエラー信号を受信した際に管理センターの管理端末５や管理者の携帯端末６に向けてアラーム信号を送信するものである。また、本システムＳでは、電源ユニット異常判定部３１ｂが記憶装置２の電源ユニット２３の異常を検知したときにも、アラーム信号出力部３１ｃから管理センターの管理端末５や管理者の携帯端末６に向けてアラーム信号が送信される。 The alarm signal output unit 31c transmits an alarm signal to the management terminal 5 of the management center or the portable terminal 6 of the administrator when the error signal receiving unit 31a receives the error signal from the storage device 2. Further, in the present system S, when the power supply unit abnormality determination unit 31b detects an abnormality in the power supply unit 23 of the storage device 2, the alarm signal output unit 31c also sends the management center management terminal 5 or the administrator mobile terminal 6 to the management unit 5. An alarm signal is sent to the destination.
　キープアライブ信号出力部３１ｄは、監視装置３が起動状態にある間、管理センターの管理端末５に向けてキープアライブ信号を定期的に出力するものである。キープアライブ信号は、通信信号に相当し、監視装置３が正常に起動していることを示すために出力される信号であり、本システムＳでは１日に１回の頻度で出力される。ただし、キープアライブ信号の出力頻度については、上記の頻度に限定されず、任意に設定可能である。 The keep alive signal output unit 31d periodically outputs a keep alive signal to the management terminal 5 of the management center while the monitoring device 3 is in the activated state. The keep-alive signal corresponds to a communication signal and is a signal output to indicate that the monitoring device 3 is normally activated. In the system S, the keep-alive signal is output once a day. However, the output frequency of the keep-alive signal is not limited to the above frequency, and can be arbitrarily set.
　以上のように本システムＳでは、キープアライブ信号の送受信を通じて監視装置３が正常に起動しているか否かを確認することができ、監視装置３自体の状態を監視することが可能となる。なお、管理端末５は、監視装置３側から所定期間以上キープアライブ信号を受け取っていない場合、監視装置３に異常が生じたと判定し、管理端末５のモニタに当該異常の発生を示す文字情報や画像情報を表示する。 As described above, in the present system S, it is possible to confirm whether or not the monitoring device 3 is normally activated through transmission and reception of a keep alive signal, and it is possible to monitor the state of the monitoring device 3 itself. If the management terminal 5 has not received a keep-alive signal from the monitoring device 3 side for a predetermined period or longer, the management terminal 5 determines that an abnormality has occurred in the monitoring device 3, and displays on the monitor of the management terminal 5 character information indicating the occurrence of the abnormality. Display image information.
　監視装置側時計３１ｅは、監視装置３が内部で管理する時刻を示すものであり、所謂リアルタイムクロックである。
　監視装置側補正機構３１ｆは、監視装置側時計３１ｅが表す時刻を補正するものである。具体的に説明すると、監視装置側補正機構３１ｆは、外部の基地局である携帯電話会社の基地局から発信される基準時刻情報を取得する。そして、監視装置側補正機構３１ｆは、取得した基準時刻情報が示す時刻と一致するように監視装置側時計３１ｅが表す時刻を補正する。ここで、基準時刻情報とは、携帯電話会社の基地局から発信される電波信号に重畳される時刻情報であり、時刻補正時に基準として用いられる基準時刻を示すものである。 The monitoring device side clock 31e indicates a time managed by the monitoring device 3 internally, and is a so-called real time clock.
The monitoring device side correction mechanism 31f corrects the time represented by the monitoring device side clock 31e. More specifically, the monitoring device side correction mechanism 31f acquires reference time information transmitted from a base station of a mobile phone company that is an external base station. And the monitoring apparatus side correction | amendment mechanism 31f correct | amends the time which the monitoring apparatus side clock 31e represents so that it may correspond with the time which the acquired reference | standard time information shows. Here, the reference time information is time information superimposed on a radio signal transmitted from a base station of a mobile phone company, and indicates a reference time used as a reference when correcting the time.
　以上のように携帯電話会社の基地局から発信される基準時刻情報を参照して監視装置側時計３１ｅを補正するので、監視装置側時計３１ｅを容易に補正することが可能となる。なお、本システムＳでは、監視装置側補正機構３１ｆによる時刻補正処理が定期的に実行されるが、１週間に１度程度の実行頻度であると好適である。ただし、時刻補正処理の実行頻度については、上記の頻度に限定されず、任意に設定可能である。 As described above, since the monitoring device side clock 31e is corrected with reference to the reference time information transmitted from the base station of the mobile phone company, the monitoring device side clock 31e can be easily corrected. In the present system S, the time correction process by the monitoring device side correction mechanism 31f is periodically executed, but it is preferable that the execution frequency is about once a week. However, the execution frequency of the time correction process is not limited to the above frequency and can be arbitrarily set.
　データ配信部３１ｇは、監視装置側補正機構３１ｆによる時刻補正処理の実行後に補正後時刻データを記憶装置２に向けて配信するものである。補正後時刻データとは、監視装置側補正機構３１ｆにより補正された後の監視装置側時計３１ｅの時刻を示すデータである。そして、記憶装置２側で補正後時刻データが受信されると、前述した記憶装置側補正機構２２ｅが当該補正後時刻データに基づいて記憶装置側時計２２ｃの時刻を補正する。より具体的に説明すると、記憶装置２では、補正後時刻データの受信に伴って補正後時刻データが示す時刻と一致するように記憶装置側時計２２ｃの時刻を補正する処理が実行される。 The data distribution unit 31g distributes the corrected time data to the storage device 2 after execution of the time correction process by the monitoring device side correction mechanism 31f. The corrected time data is data indicating the time of the monitoring device side clock 31e after being corrected by the monitoring device side correction mechanism 31f. When the corrected time data is received on the storage device 2 side, the storage device side correction mechanism 22e described above corrects the time of the storage device side clock 22c based on the corrected time data. More specifically, the storage device 2 executes a process of correcting the time of the storage device side clock 22c so as to coincide with the time indicated by the corrected time data with the reception of the corrected time data.
　なお、補正後時刻データの配信は、監視装置側補正機構３１ｆによる時刻補正処理の実行が終了した直後に自動的に実行されることとしてもよく、あるいは、記憶装置２側からデータ配信要求が送信され当該要求を受け付けたときに実行されることとしてもよい。 The distribution of the corrected time data may be automatically executed immediately after the execution of the time correction process by the monitoring device side correction mechanism 31f, or a data distribution request is transmitted from the storage device 2 side. It may be executed when the request is accepted.
　以上のように本システムＳでは、監視装置３が記憶装置２側の管理時刻を補正する際のＮＴＰサーバとして機能し、監視装置３側で時刻補正処理が実行されると、これに連動して記憶装置２側でも時刻補正処理が実行されるようになる。これにより、記憶装置側時計２２ｃについても、監視装置側時計３１ｅと同様、補正されて基準時刻と一致するようになる。このように本システムＳでは、補正後の監視装置側時計３１ｅの時刻に基づいて記憶装置側時計２２ｃの時刻を補正するので、当該時刻を容易に補正することが可能となる。 As described above, in the present system S, the monitoring device 3 functions as an NTP server when the management time on the storage device 2 side is corrected. When the time correction processing is executed on the monitoring device 3 side, the monitoring device 3 interlocks with this. The time correction process is also executed on the storage device 2 side. As a result, the storage device side clock 22c is also corrected to coincide with the reference time in the same manner as the monitoring device side clock 31e. As described above, in the present system S, the time of the storage device side clock 22c is corrected based on the corrected time of the monitoring device side clock 31e, so that the time can be easily corrected.
　停電時処理実行部３１ｈは、停電により商用電源ＣＢからの電力供給が中断した際に停電時処理を実行するものである。停電時処理とは、停電により商用電源ＣＢから監視装置３への電力供給が中断した際にその事を管理センターに通報するために実行される一連の処理のことである。 The power failure processing execution unit 31h executes power failure processing when power supply from the commercial power source CB is interrupted due to a power failure. The process at the time of a power failure is a series of processes executed to notify the management center when the power supply from the commercial power source CB to the monitoring device 3 is interrupted due to a power failure.
　より具体的に説明すると、前述したように、停電等のために商用電源ＣＢから監視装置３への電力供給が中断すると、スーパーキャパシタ３ａに蓄電された電力が放電される。そして、監視装置３は、スーパーキャパシタ３ａから放電される電力を用いて起動状態を一定期間維持する。停電時処理実行部３１ｈは、停電でありながらも監視装置３が起動状態にある期間中に停電を検知する。また、停電時処理実行部３１ｈは、停電を検知した場合、商用電源ＣＢからの電力供給が中断したことを報知するための報知信号を管理センターの管理端末５に向けて送信する。以上の一連の処理が停電時処理に該当する。 More specifically, as described above, when power supply from the commercial power source CB to the monitoring device 3 is interrupted due to a power failure or the like, the power stored in the supercapacitor 3a is discharged. And the monitoring apparatus 3 maintains a starting state for a fixed period using the electric power discharged from the supercapacitor 3a. The processing execution part 31h at the time of a power failure detects a power failure during a period when the monitoring device 3 is in an activated state even though it is a power failure. Further, when a power failure is detected, the power failure processing execution unit 31h transmits a notification signal for notifying that the power supply from the commercial power supply CB is interrupted toward the management terminal 5 of the management center. The series of processes described above corresponds to the process at power failure.
　このように本システムＳでは停電になったとしても一定期間だけ監視装置３の起動状態を維持し、当該一定期間中に停電時処理を実行することが可能である。これにより、本システムＳでは、停電により防犯カメラ１、記憶装置２及び監視装置３への電力供給が中断したことを管理センターに通報することが可能となる。 As described above, in the present system S, it is possible to maintain the start-up state of the monitoring device 3 only for a certain period even when a power failure occurs, and to execute the power failure process during the certain period. Thereby, in this system S, it becomes possible to report to the management center that the power supply to the security camera 1, the storage device 2, and the monitoring device 3 was interrupted by a power failure.
　なお、監視装置３については、上記の構成を備えるほか、複数のＬＡＮポートを有していることとしてもよい。ＬＡＮポートを有する監視装置３であれば、外部の通信機器との間で双方向通信が可能となり、例えば、死活監視用の情報をＳＮＭＰ（Ｓｉｍｐｌｅ Ｎｅｔｗｏｒｋ Ｍａｎａｇｅｍｅｎｔ Ｐｒｏｔｏｃｏｌ）にてマネージャに送信し、あるいは、ＰＩＮＧにより監視装置３と外部通信ネットワークとの間の接続状態を確認することが可能となる。 In addition, about the monitoring apparatus 3, it is good also as having a several LAN port besides having said structure. If the monitoring device 3 has a LAN port, bidirectional communication is possible with an external communication device. For example, information for alive monitoring is transmitted to the manager by SNMP (Simple Network Management Protocol), or The connection state between the monitoring device 3 and the external communication network can be confirmed by PING.
本システムを用いた監視方法Monitoring method using this system
　次に、以上までに説明してきた本システムＳを用いた監視方法（以下、本監視方法）について図７乃至図９を参照しながら説明する。本監視方法では、防犯カメラ１や記憶装置２の状態を監視する監視処理が実行される。この監視処理は、既述の監視装置３により実行され、監視装置３が起動している間において常時実行される。 Next, a monitoring method using the system S described above (hereinafter, this monitoring method) will be described with reference to FIGS. In this monitoring method, a monitoring process for monitoring the states of the security camera 1 and the storage device 2 is executed. This monitoring process is executed by the monitoring device 3 described above, and is always executed while the monitoring device 3 is activated.
　具体的に説明すると、監視処理は、図７に示す手順にて進行し、監視処理の実行中、監視装置３が記憶装置２からのエラー信号の出力の有無を監視している（Ｓ００１）。そして、監視装置３は、エラー信号を受信すると、管理センターの管理端末５や管理者保有の携帯端末６に向けてアラーム信号を出力する（Ｓ００２）。 More specifically, the monitoring process proceeds according to the procedure shown in FIG. 7, and the monitoring device 3 monitors whether or not an error signal is output from the storage device 2 during the execution of the monitoring process (S001). And the monitoring apparatus 3 will output an alarm signal toward the management terminal 5 of a management center, or the portable terminal 6 of an administrator, if an error signal is received (S002).
　また、監視装置３は、記憶装置２の状態を監視するために、電源ユニット２３から記憶装置本体への電力供給の有無を判定する。具体的に説明すると、監視処理の実行中、記憶装置２に形成されたＵＳＢジャック２４にドングル４が接続された状態で保持される。ドングル４については、前述したように、電源ユニット２３が記憶装置本体に電力を供給している間に上記ＵＳＢジャック２４に装着された状態にあると、電源ユニット２３からの供給電力が給電される。一方で、監視装置３が有する入力端子の中にはドングル４が接続された入力端子が存在し、電源ユニット２３からの供給電力がドングル４に給電されていると、上記の入力端子に電圧、具体的には約５Ｖの電圧が印加されるようになる。 Further, the monitoring device 3 determines whether or not power is supplied from the power supply unit 23 to the storage device body in order to monitor the state of the storage device 2. More specifically, during execution of the monitoring process, the dongle 4 is held in a state of being connected to the USB jack 24 formed in the storage device 2. As described above, the dongle 4 is supplied with power supplied from the power supply unit 23 when the power supply unit 23 is attached to the USB jack 24 while supplying power to the storage device body. . On the other hand, when there is an input terminal to which the dongle 4 is connected among the input terminals of the monitoring device 3 and the power supplied from the power supply unit 23 is fed to the dongle 4, a voltage is applied to the input terminal. Specifically, a voltage of about 5V is applied.
　そして、監視装置３は、ドングル４が接続された入力端子に電圧が印加されているかを検知してドングル４の給電状態を検出することで、電源ユニット２３から記憶装置本体への電力供給の有無を判定する（Ｓ００３）。このとき、ドングル４が接続された入力端子に印加される電圧の大きさが正常値でない場合、監視装置３は、管理センターの管理端末５や管理者の携帯端末６に向けてアラーム信号を出力することになる（Ｓ００４）。 Then, the monitoring device 3 detects whether or not voltage is applied to the input terminal to which the dongle 4 is connected and detects the power supply state of the dongle 4, thereby determining whether power is supplied from the power supply unit 23 to the storage device body. Is determined (S003). At this time, if the magnitude of the voltage applied to the input terminal to which the dongle 4 is connected is not a normal value, the monitoring device 3 outputs an alarm signal toward the management terminal 5 of the management center or the portable terminal 6 of the administrator. (S004).
　また、監視装置３は、監視処理の実行中、定期的にキープアライブ信号を管理センターの管理端末５に向けて出力する。すなわち、監視装置３は、起動状態にある期間中、所定時間が経過する都度（Ｓ００５）、キープアライブ信号を管理端末５に向けて出力する（Ｓ００６）。
　以上のような手順により監視処理が実行されることで、防犯カメラ１及び記憶機器２の各々に生じた異常、特に電源ユニット２３の異常を確実に検知することが可能となる。さらに、前述したように、本システムＳでは、電源ユニット２３における異常の有無を監視するためにＵＳＢ接続型のドングル４を用いているので、より手軽に取扱いができて汎用性が高く、かつ、安価な構成にて監視処理が実行されることになる。 In addition, the monitoring device 3 periodically outputs a keep alive signal to the management terminal 5 of the management center during execution of the monitoring process. That is, the monitoring device 3 outputs a keep alive signal to the management terminal 5 (S006) whenever a predetermined time elapses during the period in which the monitoring device is in the activated state (S005).
By executing the monitoring process according to the procedure as described above, it is possible to reliably detect an abnormality that has occurred in each of the security camera 1 and the storage device 2, particularly an abnormality of the power supply unit 23. Furthermore, as described above, in the present system S, the USB connection type dongle 4 is used to monitor the presence or absence of an abnormality in the power supply unit 23. Therefore, the system S can be handled more easily and is highly versatile. The monitoring process is executed with an inexpensive configuration.
　本監視方法では、また、記憶装置２及び監視装置３の各々において管理している時刻を補正する処理、すなわち時刻補正処理が定期的に実行される。時刻補正処理では、先ず、図８に示すように、携帯電話会社の基地局から発信される電波信号に重畳された基準時刻情報を監視装置３が受信する（Ｓ０１１）。その後、監視装置３において、監視装置側時計３１ｅの時刻を補正する処理が実行される（Ｓ０１２）。かかる処理により、監視装置側時計３１ｅの時刻は、基準時刻情報が示す時刻と一致するように補正される。 In this monitoring method, a process for correcting the time managed in each of the storage device 2 and the monitoring apparatus 3, that is, a time correction process is periodically executed. In the time correction process, first, as shown in FIG. 8, the monitoring device 3 receives the reference time information superimposed on the radio signal transmitted from the base station of the mobile phone company (S011). Thereafter, in the monitoring device 3, a process of correcting the time of the monitoring device side clock 31e is executed (S012). With this process, the time of the monitoring device side clock 31e is corrected to coincide with the time indicated by the reference time information.
　一方、記憶装置２は、監視装置３の時刻補正終了後に、補正後の監視装置側時計３１ｅの時刻を示す補正後時刻データの配信を監視装置３に対して要求する（Ｓ０１３）。かかる要求が監視装置３側で受け付けられると、監視装置３の機能（具体的には、データ配信部３１ｇ）により補正後時刻データが記憶装置２に向けて送信されるようになる（Ｓ０１４）。そして、記憶装置２において補正後時刻データが受信されると（Ｓ０１５）、補正後時刻データに基づいて記憶装置側時計２２ｃの時刻を補正する処理が実行される（Ｓ０１６）。かかる処理により、記憶装置側時計２２ｃの時刻は、補正後時刻データが示す時刻と一致するように補正される。
　以上のような手順により時刻補正処理が実行されることで、記憶装置２及び監視装置３の各々で管理している時刻にズレが生じたとしても、適宜修正されて正確な時刻に再設定される。 On the other hand, after the time correction of the monitoring device 3 is completed, the storage device 2 requests the monitoring device 3 to distribute corrected time data indicating the corrected time of the monitoring device side clock 31e (S013). When such a request is received on the monitoring device 3 side, the corrected time data is transmitted to the storage device 2 by the function of the monitoring device 3 (specifically, the data distribution unit 31g) (S014). When the corrected time data is received in the storage device 2 (S015), processing for correcting the time of the storage device side clock 22c based on the corrected time data is executed (S016). With this process, the time of the storage device side clock 22c is corrected to coincide with the time indicated by the corrected time data.
By performing the time correction process according to the procedure as described above, even if there is a deviation in the time managed by each of the storage device 2 and the monitoring device 3, it is appropriately corrected and reset to the correct time. The
　さらに、本監視方法では、停電により商用電源ＣＢからの電力供給が中断した場合には、前述した停電時処理が図９に図示された手順にて実行される。具体的に説明すると、停電により商用電源ＣＢから監視装置３への電力供給が中断した時点で、監視装置３に内蔵されたスーパーキャパシタ３ａが放電ラインを通じて放電を開始する（Ｓ０２１）。この結果、監視装置３は、スーパーキャパシタ３ａからの放電電力により、停電中であっても引き続き起動状態を維持する。 Furthermore, in this monitoring method, when the power supply from the commercial power source CB is interrupted due to a power failure, the above-described power failure process is executed according to the procedure shown in FIG. More specifically, when the power supply from the commercial power supply CB to the monitoring device 3 is interrupted due to a power failure, the supercapacitor 3a built in the monitoring device 3 starts discharging through the discharge line (S021). As a result, the monitoring device 3 continues to maintain the activated state even during a power failure due to the discharge power from the supercapacitor 3a.
　放電が開始された後、監視装置３は、先ず停電を検知する（Ｓ０２２）。停電を検知する手段としては、公知の手段を用いることができ、例えば、商用電源ＣＢからの電力供給を検知して信号を出力するセンサを設置し、当該センサから監視装置３への出力信号が途絶えたことを以て停電を検知することとしてもよい。そして、監視装置３は、停電を検知すると、商用電源ＣＢからの電力供給が中断したことを報知するための報知信号を管理センターの管理端末５に向けて送信する（Ｓ０２３）。
　以上のような手順により停止時処理が実行されることで、停電により防犯カメラ１、記憶装置２及び監視装置３への電力供給が中断したことを管理センターに通報し、管理センターに設置された管理端末５のモニタを通じて停電の発生を認識させることが可能となる。 After the discharge is started, the monitoring device 3 first detects a power failure (S022). As a means for detecting a power failure, a known means can be used. For example, a sensor that detects power supply from the commercial power supply CB and outputs a signal is installed, and an output signal from the sensor to the monitoring device 3 is detected. It is good also as detecting a power failure by having stopped. And the monitoring apparatus 3 will transmit the alerting | reporting signal for alert | reporting that the electric power supply from commercial power supply CB interrupted toward the management terminal 5 of a management center, if a power failure is detected (S023).
By executing the process at the time of stop according to the above procedure, the management center is notified that the power supply to the security camera 1, the storage device 2, and the monitoring device 3 has been interrupted due to a power failure, and is installed in the management center. It is possible to recognize the occurrence of a power failure through the monitor of the management terminal 5.
   ＜＜その他の実施形態＞＞
　上記の実施形態では、本発明の監視システム、監視方法及び監視装置の一実施例について説明した。しかし、上記の実施形態は、本発明の理解を容易にするための一例に過ぎず、本発明を限定するものではない。本発明は、その趣旨を逸脱することなく、変更、改良され得ると共に、本発明にはその等価物が含まれることはもちろんである。 << Other Embodiments >>
In the above embodiment, an example of the monitoring system, the monitoring method, and the monitoring device of the present invention has been described. However, the above embodiment is merely an example for facilitating understanding of the present invention, and does not limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes the equivalents thereof.
　また、上記の実施形態において、監視装置３は、監視装置３が設置された建物とは異なる建物（具体的には管理センター）に設置された管理端末５に向けてアラーム信号を出力することとした。ただし、アラーム信号の出力先となる機器（すなわち、管理端末５に相当する端末）が本システムＳと同じ建物内にあることとしてもよい。つまり、管理端末に相当する端末が、監視装置３が配置された建物と同一の建物内に配置されている一方で、監視装置３が置かれた部屋とは異なる部屋に置かれることとしてもよい。
　以上のように監視装置３が置かれた室とは異なる室に管理端末が配置されていることにより、記憶装置２や監視装置３の各々の状態を遠隔監視することが可能となる。 Moreover, in said embodiment, the monitoring apparatus 3 outputs an alarm signal toward the management terminal 5 installed in the building (specifically management center) different from the building in which the monitoring apparatus 3 is installed. did. However, the device that is the output destination of the alarm signal (that is, the terminal corresponding to the management terminal 5) may be in the same building as the system S. In other words, the terminal corresponding to the management terminal may be placed in a room different from the room in which the monitoring device 3 is placed while being placed in the same building as the building in which the monitoring device 3 is placed. .
As described above, the management terminal is arranged in a room different from the room in which the monitoring device 3 is placed, so that the state of each of the storage device 2 and the monitoring device 3 can be remotely monitored.
　また、上記の実施形態では、停電より商用電源ＣＢから監視装置３への電力供給が中断すると、スーパーキャパシタ３ａに蓄電された電力を放電することで監視装置３の起動状態を一定期間維持することとした。そして、上記の実施形態では、停電でありながらも監視装置３が起動状態にある期間中に商用電源ＣＢからの電力供給が中断したことを報知するための報知信号を管理センターの管理端末５に向けて送信することとした。ただし、これに限定されるものではなく、例えば、商用電源ＣＢからの電力供給が中断したことを報知するための報知信号を送信する時点については、商用電源ＣＢからの電力供給が復旧して監視装置３が再起動した時点であってもよい。この場合には、監視装置３にスーパーキャパシタ３ａを搭載する必要がなく、より安価な監視装置３を提供することが可能となる。 In the above embodiment, when the power supply from the commercial power supply CB to the monitoring device 3 is interrupted due to a power failure, the power stored in the supercapacitor 3a is discharged to maintain the startup state of the monitoring device 3 for a certain period. It was. And in said embodiment, the alerting | reporting signal for alerting | reporting that the electric power supply from commercial power supply CB interrupted during the period in which the monitoring apparatus 3 is a start-up state, although it is a power failure, to the management terminal 5 of a management center. We decided to send it to. However, the present invention is not limited to this. For example, at the time when a notification signal for notifying that the power supply from the commercial power supply CB is interrupted is transmitted, the power supply from the commercial power supply CB is restored and monitored. It may be the time when the device 3 is restarted. In this case, it is not necessary to mount the supercapacitor 3a on the monitoring device 3, and it is possible to provide a cheaper monitoring device 3.
　また、上記の実施形態では、記憶装置２の電源ユニット２３の異常を検出するために記憶装置２に装着される被給電機器が、記憶装置２に形成されたＵＳＢジャック２４にコネクトされた状態で電源ユニット２３からの供給電力が給電されるドングル４であることとした。ただし、被給電機器については、記憶装置２に形成された装着口に対して着脱自在であり、かつ、上記装着口に装着されると電源ユニット２３からの供給電力が給電されるものであればよく、例えば、ＩＥＥＥ１３９４のジャックにコネクトされるものであってもよい。 In the above-described embodiment, the power-supplied device attached to the storage device 2 to detect an abnormality in the power supply unit 23 of the storage device 2 is connected to the USB jack 24 formed in the storage device 2. The dongle 4 is supplied with power supplied from the power supply unit 23. However, the power-supplied device is detachable from the mounting opening formed in the storage device 2 and can be supplied with power supplied from the power supply unit 23 when mounted in the mounting opening. For example, it may be connected to an IEEE1394 jack.
　また、上記の実施形態では、インターネット等の外部通信ネットワークを通じて監視装置３から管理センターの管理端末５や管理者の携帯端末６に向けてアラーム信号を送信することとした。一方、監視装置３からアラーム信号を送信するにあたり、ＡＳＰ（Ａｐｐｌｉｃａｔｉｏｎ Ｓｅｒｖｉｃｅ Ｐｒｏｖｉｄｅｒ）サービスを利用することも可能である。具体的に説明すると、監視装置３から出力されたアラーム信号が不図示のＡＳＰサーバに受信される。その後、ＡＳＰサーバから管理センターの管理端末５に向けて異常発生を示す情報を管理端末５のモニタにポップアップ表示させるためのデータを送信したり、ＡＳＰサーバから管理者の携帯端末６に向けて異常発生を示す情報が掲載されたメールを配信したりする。 In the above embodiment, the alarm signal is transmitted from the monitoring device 3 to the management terminal 5 of the management center or the portable terminal 6 of the administrator through an external communication network such as the Internet. On the other hand, when transmitting an alarm signal from the monitoring device 3, it is also possible to use an ASP (Application Service) provider service. More specifically, an alarm signal output from the monitoring device 3 is received by an ASP server (not shown). Thereafter, data for popping up the information indicating the occurrence of abnormality on the monitor of the management terminal 5 is transmitted from the ASP server to the management terminal 5 of the management center, or an abnormality is detected from the ASP server to the portable terminal 6 of the administrator. Deliver e-mails with information on occurrences.
　以上のように、監視装置３から管理センターの管理端末５や管理者の携帯端末６に向けてアラーム信号を送信する際にＡＳＰサーバが介在することとしてもよい。かかる場合には、ＡＳＰサーバがアラーム信号を受信すると、異常発生を示す情報をモニタ等に表示するデータがＡＳＰサーバで生成されため、ＡＳＰサーバにアクセスすることで管理端末５や携帯端末６以外の端末からでも異常発生の情報をモニタ等に表示することが可能となる。 As described above, the ASP server may be interposed when the alarm signal is transmitted from the monitoring device 3 to the management terminal 5 of the management center or the portable terminal 6 of the administrator. In such a case, when the ASP server receives the alarm signal, data for displaying information indicating the occurrence of an abnormality on the monitor or the like is generated by the ASP server. Therefore, by accessing the ASP server, other than the management terminal 5 and the mobile terminal 6 It is possible to display information on the occurrence of an abnormality on a monitor or the like even from a terminal.
　なお、本実施形態において、監視装置３は、外部通信ネットワークＧＮを通じて管理センターの管理端末５や管理者の携帯端末６に向けて情報を配信したりアラーム信号を出力したりすることとした。ここで、外部通信ネットワークＧＮとしては、インターネットのほか、携帯電話会社の基地局を介した通信ネットワーク、すなわち、３Ｇ回線や４Ｇ回線等のモバイル通信ネットワークであってもよい。 In the present embodiment, the monitoring device 3 distributes information or outputs an alarm signal to the management terminal 5 of the management center or the portable terminal 6 of the administrator through the external communication network GN. Here, as the external communication network GN, in addition to the Internet, a communication network via a base station of a mobile phone company, that is, a mobile communication network such as a 3G line or a 4G line may be used.
　また、上記の実施形態では、図２を参照して記憶装置２の構成について説明したが、同図は、記憶装置２内の機器配置等の具体的構成を限定するものではない。例えば、記憶装置２の筐体内にハードディスクドライブ２１、記憶装置側コントローラ２２及び電源ユニット２３のすべてが収納されている構成であってもよく、あるいは、ハードディスクドライブ２１、記憶装置側コントローラ２２及び電源ユニット２３のうちのいずれかが筐体の外にあり、いわゆる外付け形式で設けられている構成であってもよい。 In the above-described embodiment, the configuration of the storage device 2 has been described with reference to FIG. 2, but this diagram does not limit the specific configuration such as the arrangement of devices in the storage device 2. For example, the hard disk drive 21, the storage device side controller 22, and the power supply unit 23 may all be housed in the housing of the storage device 2, or the hard disk drive 21, the storage device side controller 22 and the power supply unit. Any one of 23 may be outside the housing and may be provided in a so-called external form.
１　防犯カメラ、２　記憶装置、３　監視装置
３ａ　スーパーキャパシタ
４　ドングル、５　管理端末、６　携帯端末
２１　ハードディスクドライブ
２２　記憶装置側コントローラ
２２ａ　映像信号受信部、２２ｂ　エラー信号出力部
２２ｃ　記憶装置側時計、２２ｄ　データ受信部
２２ｅ　記憶装置側補正機構
２３　電源ユニット、２４　ＵＳＢジャック
３１　監視装置側コントローラ
３１ａ　エラー信号受信部、３１ｂ　電源ユニット異常判定部
３１ｃ　アラーム信号出力部、３１ｄ　キープアライブ信号出力部
３１ｅ　監視装置側時計、３１ｆ　監視装置側補正機構
３１ｇ　データ配信部、３１ｈ　停電時処理実行部
ＣＢ　商用電源、ＧＮ　外部通信ネットワーク
Ｐ１　電源プラグ、Ｓ　本システム
ＳＷ１　電源スイッチ、ＳＷ２　放電ラインスイッチ DESCRIPTION OF SYMBOLS 1 Security camera, 2 Storage device, 3 Monitoring device 3a Supercapacitor 4 Dongle, 5 Management terminal, 6 Portable terminal 21 Hard disk drive 22 Storage device side controller 22a Image signal receiving part, 22b Error signal output part 22c Storage device side clock, 22d Data receiving unit 22e Storage device side correction mechanism 23 Power supply unit, 24 USB jack 31 Monitoring device side controller 31a Error signal receiving unit, 31b Power supply unit abnormality determination unit 31c Alarm signal output unit, 31d Keep alive signal output unit 31e Monitoring device side clock 31f Monitoring device side correction mechanism 31g Data distribution unit, 31h Power failure processing execution unit CB Commercial power supply, GN External communication network P1, power plug, S This system SW1, power switch, SW2 discharge line switch

Claims (8)

  1.  撮像装置から映像信号を取得して記憶する記憶装置本体と、外部電源から電力を受けて前記記憶装置本体に電力を供給する電源ユニットと、を有する記憶装置と、該記憶装置に形成された装着口に対して着脱自在であり、前記電源ユニットが前記記憶装置本体に電力を供給している間に前記装着口に装着された状態にあると前記電源ユニットからの供給電力が給電される被給電機器と、該被給電機器の給電状態を検出して前記電源ユニットから前記記憶装置本体への電力供給の有無を判定することにより前記記憶装置の状態を監視する監視装置と、を有することを特徴とする監視システム。 A storage device having a storage device body that acquires and stores video signals from the imaging device, a power supply unit that receives power from an external power supply and supplies the storage device body, and a mounting formed on the storage device The power supply unit is detachably attached to the mouth, and the power supplied from the power supply unit is fed when the power supply unit is attached to the attachment mouth while supplying power to the storage device body. And a monitoring device that monitors a state of the storage device by detecting a power supply state of the power-supplied device and determining whether power is supplied from the power supply unit to the storage device body. Monitoring system.
  2. 　前記装着口は、前記記憶装置に形成されたＵＳＢジャックであり、前記被給電機器は、前記ＵＳＢジャックにコネクトされるとともに、前記監視装置に設けられた端子に接続され、前記監視装置は、前記電源ユニットからの供給電力が前記被給電機器に給電されて前記被給電機器が接続された前記端子に電圧が印加されていると、前記電源ユニットから前記記憶装置本体への電力供給がなされていると判定することを特徴とする請求項１に記載の監視システム。 The mounting port is a USB jack formed in the storage device, and the power-supplied device is connected to the USB jack and connected to a terminal provided in the monitoring device. When power supplied from a power supply unit is supplied to the power-supplied device and a voltage is applied to the terminal to which the power-supplied device is connected, power is supplied from the power supply unit to the storage device body. The monitoring system according to claim 1, wherein the monitoring system is determined.
  3. 　前記監視装置は、該監視装置の内部に備えられた監視装置側時計と、該監視装置側時計が表す時刻を補正する監視装置側補正機構と、該監視装置側補正機構により補正された時刻を示す補正後時刻データを配信するデータ配信部と、を備え、前記記憶装置は、該記憶装置の内部に備えられた記憶装置側時計と、前記データ配信部により配信された前記補正後時刻データを受信するデータ受信部と、該データ受信部が受信した前記補正後時刻データに基づいて前記記憶装置側時計が表す時刻を前記補正後時刻データが示す時刻と一致するように補正する記憶装置側補正機構と、を備えることを特徴とする請求項１または２に記載の監視システム。 The monitoring device includes a monitoring device-side clock provided in the monitoring device, a monitoring device-side correction mechanism that corrects a time represented by the monitoring device-side clock, and a time corrected by the monitoring device-side correction mechanism. A data distribution unit that distributes the corrected time data shown, and the storage device stores the storage device side clock provided in the storage device and the corrected time data distributed by the data distribution unit. A storage device side correction that corrects the time represented by the clock on the storage device side to coincide with the time indicated by the corrected time data based on the received data reception unit and the corrected time data received by the data reception unit The monitoring system according to claim 1, further comprising a mechanism.
  4. 　前記監視装置側補正機構は、外部の基地局から発信される基準時刻情報を取得し、取得した該基準時刻情報が示す時刻と一致するように前記監視装置側時計が表す時刻を補正することを特徴とする請求項３に記載の監視システム。 The monitoring device side correction mechanism acquires reference time information transmitted from an external base station, and corrects the time indicated by the monitoring device side clock so as to coincide with the time indicated by the acquired reference time information. The monitoring system according to claim 3, wherein:
  5. 　前記監視装置は、商用電源から電力が供給されることにより起動し、前記商用電源からの電力供給が中断したときには、前記監視装置に内蔵された蓄電装置から放出される電力を用いて起動状態を一定期間維持し、該一定期間中に前記商用電源からの電力供給が中断したことを報知するための報知信号を出力することを特徴とする請求項１乃至４のいずれか一項に記載の監視システム。 The monitoring device is activated when power is supplied from a commercial power source. When power supply from the commercial power source is interrupted, the monitoring device is activated using power discharged from a power storage device built in the monitoring device. The monitoring according to any one of claims 1 to 4, wherein the monitoring signal is maintained for a certain period, and a notification signal for notifying that power supply from the commercial power source is interrupted during the certain period is output. system.
  6. 　前記監視装置は、該監視装置が置かれた室とは異なる室に置かれた管理端末と通信可能であり、前記監視装置が起動状態にある期間中、前記管理端末に向けて定期的に通信信号を出力することを特徴とする請求項１乃至５のいずれか一項に記載の監視システム。 The monitoring device can communicate with a management terminal placed in a room different from the room where the monitoring device is placed, and periodically communicates with the management terminal during a period in which the monitoring device is in an activated state. The monitoring system according to any one of claims 1 to 5, wherein a signal is output.
  7. 　撮像装置から映像信号を取得して記憶する記憶装置本体と、外部電源から電力を受けて前記記憶装置本体に電力を供給する電源ユニットと、を有する記憶装置の状態を監視する監視処理を実行することを有し、該監視処理では、前記電源ユニットが前記記憶装置本体に電力を供給している間に前記記憶装置に形成された装着口に装着された状態にあると前記電源ユニットからの供給電力が給電される被給電機器を前記装着口に装着した状態で保持することと、前記被給電機器の給電状態を検出して前記電源ユニットから前記記憶装置本体への電力供給の有無を判定することと、を行うことを特徴とする監視方法。 A monitoring process for monitoring a state of a storage device having a storage device main body that acquires and stores a video signal from the imaging device and a power supply unit that receives power from an external power supply and supplies the power to the storage device main body is executed. In the monitoring process, the power supply unit supplies power from the power supply unit when the power supply unit is attached to a mounting opening formed in the storage device while supplying power to the storage device body. Holding a power-supplied device to which power is supplied in a state where it is attached to the mounting opening, and detecting the power supply state of the power-supplied device to determine whether power is supplied from the power supply unit to the storage device body And a monitoring method characterized by:
  8. 　撮像装置から映像信号を取得して記憶する記憶装置本体と、外部電源から電力を受けて前記記憶装置本体に電力を供給する電源ユニットと、を有する記憶装置の状態を監視する監視装置であって、前記電源ユニットが前記記憶装置本体に電力を供給している間に前記記憶装置に形成された装着口に装着された状態にあると前記電源ユニットからの供給電力が給電される被給電機器の、給電状態を検出して前記電源ユニットから前記記憶装置本体への電力供給の有無を判定することを特徴とする監視装置。
     
          A monitoring device that monitors a state of a storage device having a storage device body that acquires and stores a video signal from an imaging device and a power supply unit that receives power from an external power source and supplies the storage device body with power When the power supply unit is in a state of being attached to a mounting opening formed in the storage device while supplying power to the storage device main body, A monitoring device that detects a power supply state and determines whether power is supplied from the power supply unit to the storage device body.

PCT/JP2013/079964 2013-03-13 2013-11-06 Monitoring system, monitoring method and monitoring device WO2014141531A1 (en)

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