JP2014135608A - Method for maintaining monitoring camera system in normal operating state and monitoring camera system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a monitoring camera system to be automatically maintained in a normal operating state.SOLUTION: Provided is a monitoring camera system 1 configured by including a monitoring camera 20, a controller 30 therefor, and a repeating device 10, wherein the repeating device 10 transmits, to the controller 30, an instruction for changing a photographing range of the monitoring camera 20, and thereafter, within a prescribed time, performs detection of a moving body with respect to a photographed image transmitted from the monitoring camera 20, and, if no moving body can be detected, transmits an instruction for restarting the monitoring camera 20 to the controller 30. Furthermore, the repeating device 10 transmits, to the controller 30, an instruction for causing a control result to be automatically returned as a response, and, if no control result is received within a prescribed time after the control instruction is transmitted, transmits an instruction for restarting the controller 30 to the monitoring camera 20. Further, the controller 30 is provided with a watchdog timer 34 so that the controller 30 can itself be automatically restored.

Description

  The present invention relates to a method and a surveillance camera system for maintaining a surveillance camera system in a normal operating state, and in particular, even when the surveillance camera and its peripheral devices stop operating due to an instantaneous voltage drop (hereinafter also referred to as a momentary drop). The present invention relates to a technique for enabling a surveillance camera system to be automatically restored to a normal operating state.

  According to Patent Document 1, in a monitoring control system, when a computer failure occurs during operation, remote maintenance cannot be performed, and a maintenance staff visits the site to investigate the cause of the failure and restart the computer. In view of the necessity, maintenance is performed by the maintenance-side maintenance device turning off and on the computer to be maintained, or turning the reset signal on and off according to instructions given from the instruction-side maintenance device via the communication line. It is described that the target computer is restarted.

  Japanese Patent Application Laid-Open No. 2004-133830 describes that even when the communication function does not work in a state where the computer to be maintained is not operating normally, the operation of the computer to be maintained can be recovered by remote operation. The remote maintenance device remotely monitors the screen of the display means of the maintenance target computer via the external communication line, and the maintenance target computer is remotely operated by remotely operating the input means of the maintenance target computer. It is described.

Japanese Patent Laid-Open No. 10-11318 JP 2000-207241 A

  For example, in an electric power company, in order to improve the efficiency of monitoring operations such as monitoring the status of equipment and checking for intruders, surveillance cameras (dome cameras, PTZ (pans) , Tilt, zoom) cameras, network cameras, etc.) to monitor equipment and intruders from remote locations such as a central control station.

  However, since at least a part of the functions of the monitoring camera and its peripheral devices are realized by software executed by the central processing unit (CPU, MPU, etc.) built in them, for example, The function may be stopped by the influence of an instantaneous voltage drop (hereinafter also referred to as an instantaneous drop), a surge, or the like.

  Many of these software failures can be recovered by simply turning the device off and on, but surveillance cameras and peripheral devices installed in remote locations stop operating. It was necessary for the workers to go to the site one after another and manually turn the power off and on, and the operation was complicated and it took a long time to recover after a failure occurred.

  The present invention has been made in view of such a background, and a method and a surveillance camera for maintaining a surveillance camera system in a normal operation state capable of automatically maintaining the surveillance camera system in a normal operation state. The purpose is to provide a system.

  One aspect of the present invention for solving the above-described problems is that the monitoring camera, a control device that controls a shooting range of the monitoring camera, and the monitoring camera and the control device are connected to be communicable, and the monitoring A relay apparatus having a captured video reception unit for receiving captured video sent from a camera, and maintaining the surveillance camera system in a normal operating state, wherein the relay apparatus includes the imaging apparatus A moving body detection unit that performs moving body detection on a captured video received by the video reception unit is provided, and the relay device transmits a first control instruction for changing a shooting range of the monitoring camera to the control device, and When a moving object is detected for a captured image sent from the monitoring camera within a predetermined time after transmitting a control instruction, and the moving object cannot be detected as a result of the moving object detection, Against serial controller, and transmitting a second control instruction to restart the surveillance camera.

  According to the present invention, even when the surveillance camera stops operating due to a voltage drop or surge, it can be automatically restored to a normal operating state. In addition, the relay device normally operates depending on whether or not the moving object can be detected in the captured video sent from the monitoring camera within a predetermined time after transmitting the first control instruction for changing the shooting range of the monitoring camera. Since it is determined whether or not it is operating, it is not dependent on the type of the monitoring camera, and it is possible to determine whether or not the monitoring camera is operating normally without adding special hardware to the monitoring camera. Can be judged.

Another aspect of the present invention is the above method, wherein the relay device automatically responds to the control device with the control result when the control device is normally controlled. 3 If a control instruction is transmitted and the control result cannot be received within a predetermined time after the transmission of the control instruction, a fourth control instruction for restarting the control device is sent to the monitoring camera. I will send it.

  According to the present invention, it is possible to automatically restore the surveillance camera system to a normal operation state even when the control device stops operating due to an instantaneous drop or a surge. In addition, the information processing apparatus transmits a third control instruction (for example, contact information for turning back) to automatically respond to the control result from the control apparatus when the control is normally performed. Since it is determined whether or not the control device is operating normally depending on whether or not the control result can be received within a predetermined time after the instruction is transmitted, the functions of the control device (for example, the IO device) are provided. It is possible to easily and reliably determine whether or not the control device is operating normally.

  Even if an abnormality occurs in either the monitoring camera or the control device, the device in which the abnormality has occurred is restarted by an instruction from the other, so that the monitoring camera system can be reliably restored to a normal operating state. it can.

  Another aspect of the present invention is the above method, in which the control device is unable to receive a predetermined signal sent from software operating on itself within a preset time. A watchdog timer that automatically restarts the software that runs on itself is provided.

  According to the present invention, the control device automatically restarts itself when it detects its own abnormality. Therefore, even when a software failure occurs in the control device, the control device can automatically recover itself. . In addition, the surveillance camera is automatically restored by restarting the surveillance camera from the restored control device. Therefore, according to the present invention, even when both the monitoring camera and the control device are not operating correctly, the entire monitoring camera system can be automatically restored to a normal operating state.

  In addition, the subject which this application discloses, and its solution method are clarified by the column of the form for inventing, and drawing.

  According to the present invention, the surveillance camera system can be automatically maintained in a normal operation state.

1 is a diagram illustrating a schematic configuration of a monitoring camera system 1. FIG. It is a figure which shows the main hardware with which the monitoring terminal 5 is provided. It is a figure which shows the main functions with which the monitoring terminal 5 is provided. It is a figure which shows the main hardware with which the relay apparatus 10 is provided. It is a figure which shows the main functions with which the relay apparatus 10 is provided. It is a figure which shows the main hardware with which the surveillance camera 20 is provided. It is a figure which shows the main functions with which the surveillance camera 20 is provided. It is a figure which shows the main hardware with which the control apparatus 30 is provided. It is a figure which shows the main functions with which the control apparatus 30 is provided. It is a figure which shows the main hardware with which the power supply apparatus 40 is provided. It is a figure which shows the outline | summary of a recovery process. It is a flowchart explaining operation check processing S1200. It is a flowchart explaining control apparatus operation | movement confirmation process S1212. It is a flowchart explaining control apparatus restoration processing S1214. It is a flowchart explaining surveillance camera operation confirmation processing S1215. It is a flowchart explaining surveillance camera restoration processing S1217. It is a flow chart explaining control device automatic restoration processing S1700.

  Hereinafter, as this embodiment, the surveillance camera system 1 constructed for the purpose of monitoring the devices constituting the power facility, detecting the intruder, and the like will be described as an example.

  FIG. 1 shows a schematic configuration of the surveillance camera system 1. As shown in the figure, the monitoring camera system 1 includes one or more monitoring terminals 5, one or more relay devices 10, one or more monitoring cameras 20, one or more control devices 30, and one or more control devices. A power supply device 40 is included.

  Among these, the monitoring terminal 5 is provided in, for example, a central control station where intensive management work of power facilities is performed. The relay apparatus 10 is provided in, for example, a control station or a relay station that exists in various places. The monitoring camera 20, the control device 30, and the power supply device 40 are provided in a place (such as an electric station) where a device to be monitored by the monitoring camera 20 exists.

  The monitoring terminal 5 and the relay device 10 are communicably connected via communication means (private line, public communication network, Internet, etc.). The relay device 10 is communicably connected to the monitoring camera 20 and the control device 30 via communication means (private line, public communication network, Internet, etc.).

  The power supply device 40 controls the supply of power (including off-on control) supplied from a power supply (commercial power supply or the like) to the monitoring camera 20 and the control device 30.

  The monitoring terminal 5 provides information (for example, video captured by the monitoring camera 20) sent from the relay device 10 to the user. In addition, the monitoring terminal 5 transmits a control instruction to the relay device 10 according to the instruction received from the user.

  FIG. 2 shows main hardware included in the monitoring terminal 5. As shown in the figure, the monitoring terminal 5 is an information processing device (personal computer, office computer, etc.), and includes a central processing unit 51 (CPU, MPU, etc.), a main storage device 52 (RAM, ROM, NVRAM (Non Volatile RAM), auxiliary storage device 53 (hard disk, semi-moving body storage device, etc.), input device 54 (keyboard, mouse, etc.), output device 55 (liquid crystal monitor, organic EL panel, etc.), and communication device 56 (NIC ( Network Interface Card)).

  FIG. 3 shows main functions of the monitoring terminal 5. As shown in the figure, the monitoring terminal 5 includes an information providing unit 511 and a control instruction transmission unit 512. These functions are realized by hardware included in the monitoring terminal 5 or by the central processing unit 51 of the monitoring terminal 5 reading and executing a program stored in the main storage device 52.

  Among these, the information providing unit 511 provides information sent from the relay device 10 to the user via the output device 55. In addition, the control instruction transmission unit 512 transmits various control instructions to the relay device 10 according to the operation input received from the user.

  FIG. 4 shows main hardware included in the relay apparatus 10. As shown in the figure, the relay device 10 includes a central processing unit 11 (CPU, MPU, etc.), a main storage device 12 (RAM, ROM, NVRAM, etc.), and an auxiliary storage device 13 (hard disk, semi-moving body storage device, optical type). Recording device, etc.) and a communication device 14 (NIC, etc.).

  FIG. 5 shows main functions of the relay device 10. As shown in the figure, the relay apparatus 10 includes a video signal receiving unit 101, a moving object detecting unit 102, a control instruction transmitting unit 103, a control result receiving unit 104, a monitoring camera operation confirmation processing unit 105, and a control device operation confirmation processing unit 106. An information providing unit 107 and a control instruction receiving unit 108. These functions are realized by hardware included in the relay device 10 or when the central processing unit 11 of the relay device 10 reads and executes a program stored in the main storage device 12.

  Among these, the video signal receiving unit 101 receives a video signal transmitted from the monitoring camera 20 via a communication unit. The video signal received by the captured video receiving unit 101 is stored in the main storage device 12 and the auxiliary storage device 13 of the relay device 10. The received video signal is provided to the monitoring terminal 5 as needed.

  The moving object detection unit 102 performs moving object detection on the video signal received by the imaging signal reception unit 101. As will be described later, the result of the moving object detection is used to determine whether the monitoring camera 20 is currently operating normally.

  The control instruction transmission unit 103 instructs the monitoring camera 20 or the control device 30 to control these operations (a first control instruction, a second control instruction, a third control instruction, and a fourth control instruction, which will be described later). Send. This control instruction is transmitted, for example, as contact information (contact control signal) for controlling an electrical contact (IO switch) included in the monitoring camera 20 or the control device 30.

  The control result receiving unit 104 receives the result of the control performed by the monitoring camera 20 or the control device 30 in response to the control instruction. This control result is received as, for example, a signal (contact state signal) indicating the state of an electrical contact (IO switch) included in the monitoring camera 20 or the control device 30.

  The monitoring camera operation confirmation processing unit 105 realizes processing for confirming the operation of the monitoring camera 20 (monitoring camera operation confirmation processing S1215 described later).

  The control device operation confirmation processing unit 106 realizes processing for confirming the operation of the control device 30 (control device operation confirmation processing S1212 described later).

  The information providing unit 107 provides (transmits) various information such as video captured by the monitoring camera 20, information related to power equipment, information related to the relay device 10, the monitoring camera 20, and the control device 30 to the monitoring terminal 5.

  The control instruction receiving unit 108 receives a control instruction sent from the monitoring terminal 5.

  FIG. 6 shows main hardware included in the monitoring camera 20. As shown in the figure, the monitoring camera 20 includes a central processing unit 21 (CPU, MPU, etc.), a main storage device 22 (RAM, ROM, NVRAM, etc.), a communication device 23 (NIC, USB (Universal Serial Bus), RS -232C, etc.), optical photographing mechanism 24 (optical lens, imaging device (CCD, CMOS, etc.), video signal generation circuit, etc.), photographing range control mechanism 25 (servo motor, linear motor, actuator, etc., control of optical axis direction and magnification) (PTZ (Pan, Tilt, Zoom) control mechanism)). The communication device 23 communicates with the relay device 10, the control device 30, and the power supply device 40.

  FIG. 7 shows main functions of the surveillance camera 20. As shown in the figure, the monitoring camera 20 includes a video signal acquisition unit 211, a video signal transmission processing unit 212, a control instruction reception unit 213, and a control device power supply control unit 214. These functions are realized by hardware included in the monitoring camera 20 or by the central processing unit 21 of the monitoring camera 20 reading and executing a program stored in the main storage device 22. Note that these functions may be stopped due to an instantaneous drop, a surge, or the like due to the nature realized by software.

  The video signal acquisition unit 211 converts the optical video captured by the optical imaging mechanism 24 into an electrical signal (video signal) and stores the electrical signal in the main storage device 22.

  The video signal transmission processing unit 212 transmits (sends) the video signal stored in the main storage device 22 to the relay device 10. Note that when the monitoring camera 20 is operating normally, the captured video signal is transmitted to the relay device 10 at all times (in real time).

  The control instruction receiving unit 213 receives a control instruction sent from the relay device 10 or the control device 30.

  The control result transmission unit 215 transmits a control result to be sent to the relay device 10.

  The control device power supply control unit 214 controls the power supply device 40 in accordance with the control instruction received by the control instruction receiving unit 211 and turns off the power of the control device 30.

  FIG. 8 shows main hardware included in the control device 30. As shown in the figure, the control device 30 includes a central processing unit 31 (CPU, MPU, etc.), a main storage device 32 (RAM, ROM, NVRAM, etc.), a communication device 33 (NIC, USB, RS-232C, etc.), And a watchdog timer 34.

  Among these, the communication device 33 communicates with the relay device 10, the control device 30, and the power supply device 40. The watchdog timer 34 monitors the operation of the software, and when the abnormal operation of the software of the control device 30 is detected, the central processing unit 31 is restarted (for example, power-off on, software reset, reboot).

  FIG. 9 shows main functions of the control device 30. As shown in the figure, the control device 30 includes a control instruction receiving unit 311, a monitoring camera shooting range control unit 312, and a monitoring camera power supply control unit 313. These functions are realized by hardware included in the control device 30 or by the central processing unit 31 of the control device 30 reading and executing a program stored in the main storage device 32. Note that these functions may be stopped due to an instantaneous drop, a surge, or the like due to the nature realized by software.

  The control instruction receiving unit 311 receives a control instruction sent from the relay device 10 or the monitoring camera 20.

  The control result transmission unit 314 transmits a control result to be sent to the relay device 10.

  The monitoring camera shooting range control unit 312 transmits a control instruction for the shooting range to the monitoring camera 20 in response to a control instruction sent from the relay device 10.

  The monitoring camera power supply control unit 313 controls the power supply device 40 according to the control instruction received by the control instruction receiving unit 311 and turns off the power of the monitoring camera 20.

  FIG. 10 shows main hardware included in the power supply device 40. As shown in the figure, a power supply device 40 includes a rectifier circuit 41 that converts an alternating current supplied from a power source into a direct current, a voltage conversion circuit 42 that generates a drive voltage for the monitoring camera 20 and the control device 30, and a monitoring camera. 20 or a communication circuit 43 that receives a control signal sent from the control device 30, and an off-on control circuit 44 that turns off the power of the monitoring camera 20 or the control device 30 in accordance with the received control signal.

<Recovery processing>
Next, a process performed in the monitoring camera system 1 for maintaining the monitoring camera system 1 in a normal operation state (hereinafter referred to as a recovery process) will be described.

  FIG. 11 shows an outline of the recovery process. The relay apparatus 10 gives a control instruction (hereinafter referred to as a third control instruction) to automatically respond to the control apparatus 30 with the result of the control when the control is normally performed. If it is transmitted at any time and a response to the third control instruction is received from the control device 30 within a preset predetermined time, it is determined that the control device 30 is operating normally. On the other hand, if the relay apparatus 10 fails to receive a response to the third control instruction within the predetermined time, it determines that the control apparatus 30 is not operating normally (reference numeral (1) in FIG. 11). .

  In this way, the relay device 10 transmits a third control instruction for automatically responding the control result from the control device 30 when the control is normally performed to the control device 30, and transmits the control instruction. Since it is determined whether or not the control device 30 is operating normally depending on whether or not a response can be received within a predetermined time, the control device 30 is functioning normally using the functions of the control device 30. It is possible to easily and reliably determine whether or not it is operating.

  The relay device 10 transmits to the control device 30 a control instruction (hereinafter referred to as a first control instruction) for changing the shooting range of the monitoring camera 20 as needed. The control device 30 controls the direction of the monitoring camera 20 in accordance with the first control instruction (the code (2) in FIG. 11).

  The relay apparatus 10 detects the moving object for the video signal transmitted from the monitoring camera 20 for a predetermined time set in advance after transmitting the first control instruction. As a result, the relay apparatus 10 can detect the moving object. In this case, it is determined that the monitoring camera 20 is operating normally. On the other hand, the relay device 10 determines that the surveillance camera 20 is not operating normally when the moving object cannot be detected within the predetermined time after transmitting the first control instruction (see FIG. 11). (3)).

  As described above, the relay device 10 determines whether or not the monitoring camera 20 is operating normally by changing the shooting direction of the monitoring camera 20, thereby determining whether or not there is moving object detection. The operating state of the monitoring camera 20 can be reliably confirmed without providing a function.

  When the relay device 10 determines that the control device 30 is not operating normally, the relay device 10 causes the monitoring camera 20 to restart the control device 30 (for example, power off, software reset, reboot) (hereinafter, fourth control). (Referred to as an instruction). When the monitoring camera 20 receives the fourth control instruction, the monitoring camera 20 restarts the control device 30 (reference (4) in FIG. 11). When the control device 30 is restarted by turning off and on the control device 30, the monitoring camera 20 turns on and off the control device 30 by controlling the power supply device 40 according to the fourth control instruction. .

  When the relay device 10 determines that the operation of the monitoring camera 20 is not operating normally, the relay device 10 causes the control device 30 to restart the monitoring camera 20 (for example, power off, software reset, reboot) (hereinafter referred to as “first”). 2 is referred to as a control instruction). When the control device 30 receives the second control instruction, the control device 30 controls the power supply device 40 in response to this, and restarts (powers off and on) the monitoring camera 20 (reference numeral (5) in FIG. 11). When the control device 30 is restarted by turning off the power of the monitoring camera 20, the control device 30 turns off the power of the monitoring camera 20 by controlling the power supply device 40 according to the second control instruction. .

  As described above, since the control device 30 includes the watchdog timer 34, the control device 30 cannot receive a signal from software that operates on itself for a predetermined time or longer (software that operates on itself). When the abnormality of the wear is detected) itself (central processing unit 31) is automatically restarted (reference numeral (6) in FIG. 11). As described above, since the control device 30 automatically restarts even when an abnormality occurs in the control device 30, for example, even when both the monitoring camera 20 and the control device 30 are not operating normally, the control device 30 First of all, the monitoring camera 20 is restarted from the control device 30 according to the above-described procedure (reference numeral (5) in FIG. 11), so that the entire monitoring camera system 1 is automatically restored to a normal operating state. Can do.

<Processing details>
Hereinafter, the specific content of the recovery process described above will be described in detail together with a flowchart.

  FIG. 12 is a flowchart illustrating a process (hereinafter referred to as an operation confirmation process S1200) performed by the relay apparatus 10 regarding the recovery process described above. Hereinafter, it will be described with reference to FIG.

  When the timing for confirming the operation of the monitoring camera 20 and the control device 30 comes (S1211: YES), the relay device 10 first confirms the operation of the control device 30 (hereinafter referred to as control device operation confirmation processing S1212). To start. The timing is, for example, when a preset scheduled time arrives or when a predetermined time has elapsed. Details of the control device operation confirmation processing S1212 will be described later.

  As a result of the control device operation confirmation processing S1212, when it is confirmed that the control device 30 is not operating normally (S1213: NO), the relay device 10 subsequently performs a process for recovering the control device 30 (hereinafter referred to as “control device 30”). This is referred to as control device restoration processing S1214. Details of the control device restoration processing S1214 will be described later.

  On the other hand, as a result of the control device operation confirmation processing S1212, when it is confirmed that the control device 30 is operating normally (S1213: YES), the relay device 10 subsequently confirms the operation of the monitoring camera 20 ( Hereinafter, the monitoring camera operation confirmation process S1215 is started. Details of the monitoring camera operation confirmation processing S1215 will be described later.

  As a result of the monitoring camera operation confirmation process S1215, when it is confirmed that the monitoring camera 20 is not operating normally (S1216: NO), the relay device 10 subsequently performs a process for recovering the monitoring camera 20 (hereinafter, referred to as “the monitoring camera 20”). This will be referred to as surveillance camera restoration processing S1217). Details of the monitoring camera restoration processing S1217 will be described later.

  On the other hand, as a result of the monitoring camera operation confirmation processing S1215, when it is confirmed that the monitoring camera 20 is operating normally (S1216: YES), the processing returns to S1211.

  When a plurality of monitoring cameras 20 are connected to one relay apparatus 10, the operation confirmation process S1200 described above is performed for each of the connected monitoring cameras 20.

  FIG. 13 is a flowchart for explaining the details of the control device operation confirmation processing S1212 in FIG. Hereinafter, the control device operation confirmation process S1212 will be described with reference to FIG.

  The relay device 10 transmits, to the control device 30, a control instruction (third control instruction) for automatically responding the control result from the control device 30 when the control is normally performed (S1311). Then, a response from the control device 30 to the third control instruction is waited for a predetermined time (S1312: NO, S1313: NO).

  When the relay device 10 receives a response to the third control instruction from the control device 30 within a predetermined time (S1312: YES), the relay device 10 determines that the control device 30 is operating normally and sets “normal” as the return value. After that, the process proceeds to S1213 in FIG. 12 (S1314).

  Further, when the relay device 10 cannot receive a response to the third control instruction from the control device 30 within a predetermined time (S1313: YES), the relay device 10 determines that the control device 30 is not operating normally and sets the return value to “abnormal”. After that, the process proceeds to S1213 in FIG. 12 (S1315).

  FIG. 14 is a flowchart for explaining the details of the control device restoration processing S1214 in FIG. Hereinafter, the control device restoration process S1214 will be described with reference to FIG.

  The relay apparatus 10 transmits a control instruction (fourth control instruction) for restarting the control apparatus 30 to the monitoring camera 20 (S1411).

  When the monitoring camera 20 receives the fourth control instruction (S1412), it outputs a signal for turning on and off the control device 30 to the power supply device 40 and restarts the control device 30 (S1413). Thereafter, the process proceeds to S1211 in FIG. 12 (S1414).

  FIG. 15 is a flowchart for explaining the details of the monitoring camera operation confirmation processing S1215 in FIG. The monitoring camera operation confirmation process S1215 will be described below with reference to FIG.

  The relay device 10 transmits a control instruction (first control instruction) for changing the shooting range of the monitoring camera 20 to the control device 30, and when the control device 30 receives the first control instruction, the monitoring camera responds accordingly. The direction of 20 is controlled (S1511).

  The relay apparatus 10 performs moving body detection on the video signal transmitted from the monitoring camera 20 for a predetermined time after transmitting the first control instruction (S1512: NO, S1513: NO). The predetermined time is set to an appropriate value in consideration of the time when the control instruction is transmitted and the time (transmission time) required to send the video signal from the monitoring camera 20 to the relay device 10.

  When the relay device 10 detects a moving object within a predetermined time (S1512: YES), the relay device 10 determines that the monitoring camera 20 is operating normally and sets “normal” as the return value, and thereafter, S1216 in FIG. The process proceeds to (S1514).

  If the relay apparatus 10 cannot detect a moving object within a predetermined time (S1513: YES), it determines that the monitoring camera 20 is not operating normally and sets “abnormal” as the return value. Then, the process proceeds to S1216 (S1515).

  FIG. 16 is a flowchart for explaining the details of the monitoring camera restoration processing S1217 in FIG. Hereinafter, the monitoring camera restoration processing S1217 will be described with reference to FIG.

  The relay apparatus 10 transmits a control instruction (second control instruction) for restarting the monitoring camera 20 to the control apparatus 30 (S1611).

  When receiving the second control instruction (S1612), the control device 30 outputs a signal for turning on and off the monitoring camera 20 to the power supply device 40 and restarts the monitoring camera 20 (S1613). Thereafter, the process proceeds to S1211 in FIG. 12 (S1614).

  FIG. 17 is a flowchart for explaining processing (hereinafter referred to as control device automatic recovery processing S1700) that the control device 30 automatically recovers with the watchdog timer 34. The control device automatic recovery process S1700 will be described below with reference to FIG.

  The control device 30 monitors in real time whether or not a predetermined command sent from software running on the control device 30 is received (S1711: YES). When the control device 30 cannot confirm the reception of the command even after waiting for a predetermined time (S1712: YES), the control device 30 restarts its own central processing unit 31 (S1713).

  As described above, the surveillance camera system 1 according to the present embodiment makes the surveillance camera system 1 in a normal operating state even when a software failure occurs in the surveillance camera 20 or the control device 30 due to a voltage drop or a surge. It can be restored automatically.

  Further, the relay device 10 determines whether or not the moving object can be detected with respect to the captured image sent from the monitoring camera 20 within a predetermined time after transmitting the first control instruction for changing the shooting range of the monitoring camera 20. Since it is determined whether or not the monitoring camera 20 is operating normally, the monitoring camera 20 is used by the relay device 10 without depending on the type of the monitoring camera 20 and without adding special hardware to the monitoring camera 20. It is possible to easily and accurately determine whether or not is operating normally.

  Further, the relay device 10 transmits an instruction (third control instruction) for automatically responding the control result from the control device 30 to the control device 30 when the control is normally performed. Since it is determined whether or not the control device 30 is operating normally depending on whether or not a response can be received within a predetermined time after transmission, the control device 30 can be used by utilizing the functions of the control device 30. Whether or not 30 is operating normally can be determined easily and reliably.

  In addition, when either one of the monitoring camera 20 or the control device 30 is not operating normally, the device that is operating normally restarts the device that is not operating normally. The camera system 1 can be restored to a normal operating state.

  In addition, since the control device 30 automatically restarts itself when it detects its abnormality by the watchdog timer, even when a software failure occurs in the control device 30, the control device 30 is first restarted, and then Since the control device 30 restarts the monitoring camera 20, the entire monitoring camera system 1 can be automatically restored to a normal operating state.

  By the way, the embodiment described above is for facilitating the 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.

  For example, the monitoring terminal 5 may perform all or part of the functions of the relay device 10.

DESCRIPTION OF SYMBOLS 1 Surveillance camera system 5 Surveillance terminal 10 Relay apparatus 20 Surveillance camera 30 Control apparatus 40 Power supply apparatus 101 Video signal receiving part 102 Moving body detection part 103 Control instruction transmission part 104 Control result receiving part 105 Surveillance camera operation confirmation process part 106 Control apparatus operation | movement Confirmation processing unit S1200 Operation confirmation processing S1212 Control device operation confirmation processing S1214 Control device restoration processing S1215 Monitoring camera operation confirmation processing S1217 Monitoring camera restoration processing S1700 Control device automatic restoration processing

Claims (6)

A surveillance camera,
A control device for controlling the imaging range of the surveillance camera;
A relay device that is connected to each of the monitoring camera and the control device so as to be communicable and has a photographic video receiving unit that receives a photographic video transmitted from the monitoring camera;
A surveillance camera system configured to maintain a normal operating state,
The relay device is provided with a moving object detection unit that detects a moving object for a captured image received by the captured image reception unit,
The relay device is
Transmitting a first control instruction for changing a shooting range of the monitoring camera to the control device;
Perform moving object detection on a captured image sent from the surveillance camera within a predetermined time after transmitting the first control instruction,
When the moving object cannot be detected as a result of the moving object detection, a second control instruction for restarting the monitoring camera is transmitted to the control device. How to keep in state. A method of maintaining the surveillance camera system according to claim 1 in a normal operating state,
The relay device is
When the control is normally performed to the control device, a third control instruction for automatically responding the control result from the control device is transmitted,
When the control result cannot be received within a predetermined time after transmitting the control instruction, a fourth control instruction for restarting the control device is transmitted to the monitoring camera. To maintain the surveillance camera system in a normal operating state. A method of maintaining the surveillance camera system according to claim 2 in a normal operating state,
The control device automatically restarts the software operating in the control device when the predetermined signal transmitted from the software operating in the control device cannot be received within a preset time. A method for maintaining a surveillance camera system in a normal operating state, comprising a dog timer. A surveillance camera,
A control device for controlling the imaging range of the surveillance camera;
A relay device that is connected to each of the monitoring camera and the control device so as to be communicable and has a photographic video receiving unit that receives a photographic video transmitted from the monitoring camera;
A surveillance camera system comprising:
The relay device is
Transmitting a first control instruction for changing a shooting range of the monitoring camera to the control device;
Perform moving object detection on a captured image sent from the surveillance camera within a predetermined time after transmitting the first control instruction,
When the moving object cannot be detected as a result of the moving object detection, a second control instruction for restarting the monitoring camera is transmitted to the control device. The surveillance camera system according to claim 4,
The relay device is
When the control is normally performed to the control device, a third control instruction for automatically responding the control result from the control device is transmitted,
When the control result cannot be received within a predetermined time after transmitting the control instruction, a fourth control instruction for restarting the control device is transmitted to the monitoring camera. Surveillance camera system. The surveillance camera system according to claim 5,
The control device is provided with a watchdog timer, and automatically operates the software that operates in itself when the predetermined signal transmitted from the software that operates in the controller cannot be received within a preset time. Surveillance camera system characterized by being restarted automatically.

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