JP6449710B2 - Elevator car video recording system - Google Patents

Description

  The present invention relates to an elevator car video recording system that records and searches video in a car.

  In general, this type of in-car video recording system is when the car door is opened to an elevator that has a camera installed at an appropriate position in the car and a video recording device at the top of the car. Or, when the passenger is using the elevator, such as when the car is running, the video in the car taken by the camera is recorded in the video recording device.

  Such an in-car video recording system uses a recording time at which a video with a high possibility of crime is recorded together with the video from the video recorded on the video recording device in a center device or the like that remotely monitors the elevator. By using as a search key. However, as long as the elevator is used by passengers, the video recorded in the car taken by the camera is continuously recorded, so the amount of video recording device recording tends to be enormous, and the video recorded in the video recording device It takes a lot of time to search for a desired video from among the above.

  Therefore, when receiving an event signal with a high probability of crime when receiving a primary video recording unit that records images in a car taken by a security camera, together with identification data that serves as a search key that means an event reception time and each event, An elevator car video recording system including a video recording device provided with a video / data management unit for storing a video in a car recorded in a primary video recording unit at the time of occurrence of an event is proposed. (For example, refer to Patent Document 1).

JP 2006-21852 A

  In the car video recording system of the prior art disclosed in Patent Document 1 described above, when a unique vibration different from the normal operation occurs, or when a sound having a sound level different from the normal time is emitted. , The video in the video / data recording unit is searched according to the identification data for each event with a high possibility of crime as a search key, but the video corresponding to which data among these identification data has high importance However, it takes time to search for videos that need to be preferentially reproduced from videos recorded in the video recording apparatus that have a high possibility of crime. As described above, there is a concern that the conventional video recording system in a car is low in convenience when searching for a desired video having a high possibility of crime.

  The present invention has been made based on such a state of the art, and the purpose thereof is an elevator car video recording system capable of improving convenience when searching for a desired video with a high possibility of crime. Is to provide.

In order to achieve the above object, an elevator car video recording system according to the present invention is provided in an elevator equipped with a car that moves up and down in a hoistway and a video acquisition device that obtains an image in the car. In the elevator car video recording system for recording the video in the car acquired by the video acquisition device and searching for the recorded video in the car, there is a possibility of a crime in the car. An event detection device for detecting a high predetermined event and each time a video in the car is acquired by the video acquisition device, the video is identified whether the predetermined event is detected by the event detection device the video recording unit for recording the image data associated with the identification information, the image in the car obtained by the image acquisition device to When recording the image data, based on the video recording unit the identification information recorded on, to determine the importance of the video according to the importance level table a predetermined, the importance in association with the image data Further , when receiving the list acquisition request signal from the importance determination unit to be recorded in the video recording unit and the center device that remotely monitors the operation and state of the elevator, the importance determined by the importance determination unit Accordingly, a list creation unit that creates a list for searching for videos in the car from the video data recorded in the video recording unit, the importance level table, for each importance level, the list The predetermined event specified by the identification information is correlated .

  According to the elevator car video recording system of the present invention, it is possible to improve convenience when searching for a desired video with a high possibility of crime. Problems, configurations, and effects other than those described above will be clarified by the following description of the embodiments.

1 is an overall view showing a configuration of an elevator to which an embodiment of an in-car video recording system according to the present invention is applied. 1 is a block diagram showing a schematic configuration of an embodiment of an elevator car video recording system according to the present invention. It is a functional block diagram which shows the structure of the behavior detection apparatus shown in FIG. It is a functional block diagram which shows the structure of the video recording processing apparatus shown in FIG. It is a figure which shows the content set as conditions which show the phenomenon with high possibility of a crime in the cage | basket | car video recording system which concerns on this embodiment. It is a figure which shows the structure of the picked-up video recording table recorded on the video recording part shown in FIG. It is a figure which shows the relationship between the importance of the image | video in a car determined by the importance determination part shown in FIG. 4, and an identification result. It is a figure which shows the structure of the picked-up image list transmission table created by the list creation part shown in FIG. 5 is a flowchart showing a flow of processing for creating a captured video recording table by the video recording control unit shown in FIG. 4. 5 is a flowchart showing a flow of a process for creating and transmitting a captured video list transmission table by the video recording control unit shown in FIG. 4.

  EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the image recording system in the elevator car which concerns on this invention is demonstrated based on figures.

  FIG. 1 is an overall view showing the configuration of an elevator to which an embodiment of an in-car video recording system according to the present invention is applied.

  One embodiment of an in-car video recording system according to the present invention is applied to, for example, an elevator 1 shown in FIG. The elevator 1 moves up and down in a hoistway 2 of a building, and a car 3 on which a user who uses the elevator 1 moves to move to each floor of the building, and a main rope 4 attached to the car 3 at one end. The other end of the main rope 4 is attached, and a counterweight 5 suspended in the hoistway 2 is provided.

  The elevator 1 also includes a video acquisition device 6 that acquires video in the car 3. The video acquisition device 6 is installed on the ceiling of the car 3, for example, and photographs the state in the car 3. A stereo camera (hereinafter, for convenience, the same reference numeral as that of the video acquisition device is used). Note that the video acquisition device 6 may be a device other than the stereo camera as long as it can acquire the video in the car 3.

  In addition to the stereo camera 6, a door (not shown) that opens and closes the doorway that connects the car 3 and the platform 10 on each floor of the building is generated in the car 3. A high voice sensor 7 serving as a voice detecting device for detecting the generated voice and an operation panel 8 for outputting a car call registration to the destination floor of the car 3 and a door opening / closing operation command are installed.

  The door of the car 3 has, for example, a double-open structure that opens and closes from the center of the entrance / exit of the car 3 to the left and right sides when viewed from the landing 10 side (front side) of each floor. For example, the high sound sensor 7 is a sensor that does not operate when a sound of less than a preset volume (dB) is input, and operates only when a sound of a sound larger than the sound is input. The door of the car 3 is not limited to the double door structure described above, and may be, for example, a single door structure that opens and closes in one direction left and right when viewed from the landing 10 side of each floor.

  Each device in the car 3 including the stereo camera 6, the high sound sensor 7, and the operation panel 8 described above is connected via a tail cord 9A, a repeater 9B, and a communication cable 9C disposed in the hoistway 2. It is electrically connected to an elevator control device 14 described later. The tail cord 9A has one end connected to the lower part of the car 3 and the other end connected to the repeater 9B, and is suspended in a U shape in the hoistway 2. The repeater 9 </ b> B is a device that is fixed to the wall surface of the hoistway 2 and relays communication performed between each device in the car 3 and the elevator control device 14.

  Further, the elevator 1 is provided in a machine room 11 located above the hoistway 2, and a hoisting machine 12 that drives the car 3 and the counterweight 5, and a sled wheel arranged in the vicinity of the hoisting machine 12. 13. Further, the elevator 1 is provided on a wall in the vicinity of the entrance / exit on the platform 10 side, and is provided in a platform button (not shown) for registering a platform call of the platform 3, and in the machine room 11, and the operation of the platform 3 and The above-described elevator control device 14 that controls the operation of the entire elevator 1 such as door opening and closing drive is provided. In addition, the platform 10 on each floor of the building is provided with a door 10 </ b> A that opens and closes the doorway in conjunction with the door of the car 3.

  The hoisting machine 12 includes a drive sheave 12A around which the main rope 4 is wound, a motor 12B that rotates the drive sheave 12A, and a brake device (not shown) that brakes the rotation of the drive sheave 12A. The motor 12B and the brake device are electrically connected to the elevator control device 14. The hoisting machine 12 having such a configuration raises and lowers the car 3 relative to the counterweight 5 by operating the motor 12B and the brake device in response to a control command from the elevator control device 14. ing.

  Although not shown in the figure, the elevator control device 14 is, for example, a CPU (Central Processing Unit) for performing various calculations for controlling the operation of the entire elevator 1 including the operation of the car 3 and the door opening / closing drive, and the calculation by the CPU. Hardware including a storage device such as a ROM (Read Only Memory) or HDD (Hard Disk Drive) for storing a program to be executed, and a RAM (Random Access Memory) serving as a work area when the CPU executes the program It is composed of

  The car video recording system according to the present embodiment is applied to the elevator 1 having such a configuration, and records the video in the car 3 photographed by the stereo camera 6 and also records the recorded video in the car 3. There is a feature in the structure to search. Hereinafter, a specific configuration of the car video recording system according to the present embodiment will be described in detail with reference to FIG.

  FIG. 2 is a block diagram showing a schematic configuration of the car video recording system according to the present embodiment.

  As shown in FIG. 2, the car video recording system according to the present embodiment includes a behavior detection device 16 that detects the behavior of the user in the car 3 such as a rampage of the user of the elevator 1, and a stereo camera 6. A video recording processing device 17 that performs processing for recording the video in the captured car 3 and a center device 18 that is installed at a location remote from the elevator 1 and remotely monitors the operation and state of the elevator 1. I have.

  The behavior detection device 16 is not illustrated, for example, a CPU that performs various calculations for detecting the behavior of the user in the car 3, and a ROM, HDD, or the like that stores a program for executing calculations by the CPU It is configured to include hardware including a storage device and RAM that serves as a work area when the CPU executes a program, and software stored in the storage device and executed by the CPU. The function as the behavior detection device 16 is realized. The software includes a behavior detection program for detecting the behavior of the user in the car 3. In addition, the specific structure which shows the function of the behavior detection apparatus 16 is mentioned later.

  Although not shown in the figure, the video recording processing device 17 is, for example, a CPU that performs various computations for executing processing for recording video in the car 3 photographed by the stereo camera 6, and for performing computations by the CPU. A hardware configuration including a storage device such as a ROM or HDD for storing a program, a RAM serving as a work area when the CPU executes the program, and software stored in the storage device and executed by the CPU In cooperation with these, the function as the video recording processing device 17 is realized. Further, the software includes a video recording processing program for executing processing for recording video in the car 3. A specific configuration showing the function of the video recording processing device 17 will be described later.

  The center device 18 is communicatively connected to the video recording processing device 17 via a public communication line 19 such as the Internet, and transmits and receives various information and signals to and from the video recording processing device 17. Further, the center device 18 is not illustrated, for example, an operation device that performs an operation of searching and selecting a video in the car 3 processed by the video recording processing device 17, and the car 3 selected by the operation device. And a display device such as a liquid crystal display for displaying various kinds of information including the video.

  Next, a specific configuration showing the function of detecting the behavior of the user in the behavior detection device 16 will be described in detail with reference to FIG.

  FIG. 3 is a functional block diagram showing the configuration of the behavior detection device 16.

  As shown in FIG. 3, the behavior detection device 16 includes an elevator communication unit 161, a camera video acquisition unit 162, a behavior analysis unit 163, and a video recording processing device communication unit 164.

  The elevator communication unit 161 is connected to the elevator control device 14 for communication, and transmits and receives various information and signals to and from the elevator control device 14. For example, when the elevator communication unit 161 controls the video signal of the stereo camera 6 or when the elevator control device 14 performs control to open the door of the car 3, the elevator control device 14 sends a door open signal indicating that the door has been opened. It receives or transmits the analysis result of the behavior analysis unit 163 including the rampage detection information described later to the elevator control device 14.

  The camera video acquisition unit 162 acquires the video signal of the stereo camera 6 from the information and signals received by the elevator communication unit 161 from the elevator control device 14, and transmits the acquired video signal to the behavior analysis unit 163.

  When the behavior analysis unit 163 receives the video signal from the camera video acquisition unit 162, the behavior analysis unit 163 analyzes the video in the car 3 photographed by the stereo camera 6, and the behavior of the user is, for example, the user in the car 3 Determine if you are rampant. Specifically, when the user of the elevator 1 gets into the car 3, the behavior analysis unit 163 considers a situation in which the user waits without performing a large operation until it reaches the destination floor. After calculating the amount of change in the video of the car 3, if the calculated amount of change exceeds a predetermined threshold, it is determined that the user is rampaging in the car 3, and the calculated amount of change is the predetermined amount. If the threshold is not exceeded, it is determined that the user is not exposed in the car 3.

  When the behavior analysis unit 163 determines that the user is rampant in the car 3, the behavior analysis unit 163 transmits the ramp detection information indicating the situation to the elevator communication unit 161 and the video recording processing device communication unit 164. Note that the determination by the behavior analysis unit 163 whether or not the user is rampant is not limited to the case where the change amount of the image of the car 3 is calculated as described above, and is displayed on the image in the car 3, for example. This may be done by calculating the operating speed of the subject representing the user.

  The video recording processing device communication unit 164 is communicatively connected to the video recording processing device 17 and transmits / receives various information and signals to / from the video recording processing device 17. For example, the video recording processing device communication unit 164 transmits the analysis result of the behavior analysis unit 163 including the rampage detection information to the video recording processing device 17.

  Next, a specific configuration showing the video recording processing function in the car 3 in the video recording processing device 17 will be described in detail with reference to FIG.

  FIG. 4 is a functional block diagram showing the configuration of the video recording processing device 17.

  As shown in FIG. 4, the video recording processor 17 includes an elevator communication unit 171, a camera video acquisition unit 172, a camera video analysis unit 173, a behavior detection device communication unit 174, a video recording unit 175, a video recording control unit 176, and A center device communication unit 177 is included.

  The elevator communication unit 171 is connected to the elevator control device 14 for communication, and transmits and receives various information and signals to and from the elevator control device 14. For example, the elevator communication unit 171 receives various information and signals including the video signal of the stereo camera 6, the detection signal of the high sound sensor 7, and the operation state of the elevator 1 from the elevator control device 14.

  The camera video acquisition unit 172 acquires the video signal of the stereo camera 6 from the information and signals received by the elevator communication unit 171 from the elevator control device 14, and uses the acquired video signal as a camera video analysis unit 173 and a video recording control unit. 176 to send.

  Upon receiving the video signal from the camera video acquisition unit 172, the camera video analysis unit 173 analyzes the video in the car 3 photographed by the stereo camera 6, and the number of users waiting in the car 3, that is, the ride The number of passengers in the car 3 is calculated. Specifically, the camera image analysis unit 173 is, for example, the number of pixels in the car 3 taken by the stereo camera 6 and the basic that no user is on the car 3 stored in advance. A difference value with the number of pixels of the video is calculated, and the number of passengers in the car 3 is calculated based on the calculated difference value.

  Then, when the camera video analysis unit 173 calculates the number of passengers in the car 3, the camera video analysis unit 173 transmits the calculation result to the video recording control unit 176. Note that the calculation of the number of passengers in the car 3 by the camera video analysis unit 173 is not limited to the case where the number of pixels of the video of the car 3 described above is used, but may be performed using other means.

  In the car video recording system according to the present embodiment, the camera video analysis unit 173 functions as a user detection device that detects the number of users in the car 3, and the behavior detection device 16, the camera video analysis unit 173, and The high voice sensor 7 functions as an event detection device that detects a predetermined event with a high possibility of crime in the car 3.

  FIG. 5 is a diagram showing contents set as conditions indicating an event with a high possibility of crime in the in-car video recording system according to the present embodiment.

  In the car video recording system according to the present embodiment, an event having a high possibility of crime in the car 3 is set as the following three conditions 1 to 3 shown in FIG. The condition 1 indicates that the user in the car 3 indicates a preset behavior, for example, the user's rampage in the car 3, that is, the user analyzes the ramp in the car 3 by the behavior analysis unit 163. Is determined to be. Condition 2 is that the number of users in the car 3 is a preset number, for example, two, that is, the number of passengers in the car 3 is calculated by the camera image analysis unit 173 as two. is there. Condition 3 is that the voice generated in the car 3 is not less than a preset level, that is, the high voice sensor 7 is operated.

  In FIG. 4, the behavior detection device communication unit 174 is connected to the behavior detection device 16 to transmit and receive various information and signals to and from the behavior detection device 16. For example, the behavior detection device communication unit 174 receives the rampage detection information from the behavior detection device 16 and transmits the received rampage detection information to the video recording control unit 176.

  In accordance with an instruction from the video recording control unit 176, the video recording unit 175 records the video signal of the stereo camera 6 obtained by the camera video obtaining unit 172, records the recording start date and time of the video signal, and receives from the camera video analysis unit 173. Recording of the number of passengers in the car 3, recording of the rampage detection information received from the behavior detection device 16, recording of the operation signal of the high sound sensor 7 received from the elevator control device 14, and determination by the importance level determination unit 176A described later Record the importance of the video in the car 3 to be used.

  In the car video recording system according to the present embodiment, the video recording unit 175 detects whether the predetermined event has been detected by the event detection device, that is, the behavior detection of the video in the car 3 taken by the stereo camera 6. Recording is performed as video data associated with identification information for identifying whether or not each of the conditions 1 to 3 is satisfied by the device 16, the camera video analysis unit 173, and the high sound sensor 7.

  FIG. 6 is a diagram showing the configuration of the video data recorded in the video recording unit 175.

  For example, as shown in FIG. 6, the video data recorded in the video recording unit 175 includes a video No. indicating a video signal identification number (hereinafter referred to as a video No. for convenience). An item, a recording date / time item indicating the recording start date / time of the video signal, a behavior detection item indicating presence / absence of rampage detection information, a passenger number item indicating the number of users in the car 3, and a high voice sensor 7 It is composed of a photographed video recording table in which a high voice item indicating the presence / absence of an operation and an importance item indicating the importance of a video in the car 3 are associated with each other.

  Therefore, if the behavior detection item, the passenger number item, and the high voice item of the captured video recording table indicate identification information, and the behavior detection item is “present”, the condition 1 is satisfied, and the behavior detection item Is “none”, it is understood that the condition 1 is not satisfied. If the number of passengers item is “2”, condition 2 is satisfied. If the number of passengers item is not “2”, it is understood that condition 2 is not satisfied. If the high sound item is “present”, condition 3 is satisfied, and if the high sound item is “none”, it is understood that condition 3 is not satisfied.

  The video recording control unit 176 performs control to record various information and signals received from the elevator communication unit 171, the camera video acquisition unit 172, the camera video analysis unit 173, and the behavior detection device communication unit 174 in the video recording unit 175. It has a function. For example, the video recording control unit 176 controls the operation of starting recording the video signal of the stereo camera 6 received from the camera video acquisition unit 172 and ending the recording of the video signal of the stereo camera 6.

  In the car video recording system according to the present embodiment, the video recording control unit 176 determines the importance of the video in the car 3 taken by the stereo camera 6 based on the identification information recorded in the video recording unit 175. An importance level determination unit 176A for determination and a list for searching for videos in the car 3 from the captured video recording table recorded in the video recording unit 175 according to the importance levels determined by the importance level determination unit 176A. A list creation unit 176B to be created.

  FIG. 7 is a diagram showing the relationship between the importance of the video in the car 3 determined by the importance determining unit 176A and the identification result.

  For example, as illustrated in FIG. 7, the importance level determination unit 176A includes the video No. of the video signal of the stereo camera 6 in the captured video recording table recorded in the video recording unit 175. With reference to the behavior detection item, the passenger number item, and the high-sound item corresponding to each, the importance of the video in the car 3 indicated by the video signal of the stereo camera 6 is divided into 8 levels from “0” to “7”. evaluate.

  That is, when all of the conditions 1 to 3 are satisfied, the importance determination unit 176A determines that the video in the car 3 has the highest importance “7”, and the conditions 1 and 3 are satisfied. When the condition 2 is not satisfied, it is determined that the importance of the video in the car 3 is the second highest “6”, and the condition 1 and the condition 2 are satisfied, and the condition 3 is not satisfied When it is determined that the video in the car 3 has the third highest importance level “5”, and the conditions 2 and 3 are satisfied, and the condition 1 is not satisfied, the video in the car 3 It is determined that the importance is “4”, which is the fourth highest.

  When the condition 1 is satisfied and the conditions 2 and 3 are not satisfied, the importance determination unit 176A determines that the importance of the video in the car 3 is “3”, which is the fifth highest, and the condition 2 Is satisfied, and conditions 1 and 3 are not satisfied, it is determined that the importance of the video in the car 3 is the second highest “2”, and condition 3 is satisfied, and conditions 1 and 2 Is not established, it is determined that the importance of the video in the car 3 is “1”, which is the seventh highest, and when none of the conditions 1 to 3 is established, the video in the car 3 It is determined that the importance is the lowest “0”.

  FIG. 8 is a diagram showing the configuration of a list for searching for videos in the car 3 created by the list creation unit 176B.

  The list creation unit 176B refers to, for example, the captured video recording table recorded in the video recording unit 175, and, as shown in FIG. 8, the thumbnail data of the video in the car 3 indicated by the video signal of the stereo camera 6, A captured video list transmission table arranged in descending order of importance determined by the importance determining unit 176A is created.

  Specifically, for example, this photographed video list transmission table is transmitted to the center device 18 in accordance with No. 2 for the video signal of the stereo camera 6. 1 is a transmission data number indicating a unique data number assigned in order from 1 (hereinafter referred to as transmission data number for convenience). Item and the video No. of the video signal of the stereo camera 6. Video No. showing An item, a recording date / time item indicating the recording start date / time of the video signal, and a captured video thumbnail data item indicating thumbnail data of the video in the car 3 are associated with each other. In FIG. 8, the transmission data No. 1-No. A list of up to 100 captured video lists is shown as an example.

  In FIG. 4, the video recording control unit 176 records the determination result of the importance level determination unit 176 </ b> A in the video recording unit 175 and obtains the captured video list transmission table received from the center device 18 via the center device communication unit 177. In response to the list acquisition request signal for requesting, the photographed video list transmission table created by the list creation unit 176B is transmitted to the center device communication unit 177.

  The center device communication unit 177 is communicatively connected to the center device 18 and transmits / receives various information and signals to / from the center device 18. For example, the center device communication unit 177 receives a list acquisition request signal from the center device 18, and transmits a captured video list transmission table, a video signal of the stereo camera 6, and the like received from the video recording control unit 176 to the center device 18. .

  Next, a process of creating a captured video recording table by the video recording control unit 176 will be described in detail based on the flowchart of FIG.

  FIG. 9 is a flowchart showing a flow of processing for creating a captured video recording table by the video recording control unit 176.

  As shown in FIG. 9, first, the video recording control unit 176 selects a video No. 1 for distinguishing videos in the car 3 from the captured video recording table recorded in the video recording unit 175. Is initialized ((step (hereinafter referred to as S) 901)). Next, the video recording control unit 176 uses the elevator communication to record the video in the car 3 taken by the stereo camera 6 in the video recording unit 175 only when the user is using the elevator 1. The operation state of the door of the car 3 is monitored via the unit 171 and it is determined whether a door open signal is received from the elevator control device 14 (S902).

  At this time, if the video recording control unit 176 determines that the door opening signal has not been received from the elevator control device 14 (S902 / No), the process of S902 is repeated until the door opening signal is received from the elevator control device 14. . On the other hand, in S902, when the video recording control unit 176 receives the door opening signal from the elevator control device 14 (Yes in S902), the video recording control unit 176 selects a corresponding video No. in the captured video recording table in the video recording unit 175. The current date / time is registered in the recording date / time item corresponding to (S903), and the video signal of the stereo camera 6 is recorded in the video recording unit 175 (S904).

  Next, the video recording control unit 176 monitors the operation state of the elevator 1 via the elevator communication unit 171 and determines whether or not the traveling end signal indicating that the traveling of the car 3 has been completed is received from the elevator control device 14. Judgment is made (S905). At this time, if the video recording control unit 176 determines that the travel end signal has not been received from the elevator control device 14 (S905 / No), the process of S905 is repeated until the travel end signal is received from the elevator control device 14. .

  On the other hand, in S905, when the video recording control unit 176 determines that the travel end signal has been received from the elevator control device 14 (S905 / Yes), it determines again whether the door open signal has been received from the elevator control device 14. (S906). At this time, when the video recording control unit 176 determines that the door opening signal is not received from the elevator control device 14 (S906 / No), the processing of S906 is repeated until the door opening signal is received from the elevator control device 14. .

  On the other hand, when the video recording control unit 176 determines that the door opening signal has been received from the elevator control device 14 (S906 / Yes), the video recording control unit 176 ends the recording of the video signal of the stereo camera 6 in the video recording unit 175 (S907). Therefore, by performing the processing of S901 to S907, the video No. The first data corresponding to 1 is recorded in the video recording unit 175.

  Next, the video recording control unit 176 determines whether or not the ramp detection information is received from the behavior detection device 16 via the behavior detection device communication unit 174, that is, the user is ramping in the car 3 by the behavior analysis unit 163. (S908). At this time, when the video recording control unit 176 confirms that the rampage detection information has not been received from the behavior detection device 16 (S908 / No), the corresponding video No. in the captured video recording table in the video recording unit 175 is displayed. After “None” is registered in the behavior detection item corresponding to (S909), the processing of S911 described later is performed.

  On the other hand, in S908, when the video recording control unit 176 confirms that the rampage detection information has been received from the behavior detection device 16 (S908 / Yes), the corresponding video No. in the captured video recording table in the video recording unit 175 is displayed. "Yes" is registered in the behavior detection item corresponding to (S910). Thereafter, the video recording control unit 176 receives the calculation result of the number of passengers in the car 3 from the camera video analysis unit 173, and the corresponding video No. in the captured video recording table in the video recording unit 175. The number of passengers in the car 3 is registered in the passenger number item corresponding to (S911).

  Then, the video recording control unit 176 confirms whether or not the operation signal of the high sound sensor 7 is received from the elevator control device 14 via the elevator communication unit 171 (S912). At this time, when the video recording control unit 176 confirms that the operation signal of the high audio sensor 7 has not been received (S912 / No), the corresponding video No. in the captured video recording table in the video recording unit 175 is displayed. After registering “None” in the high voice item corresponding to (S913), the process of S915 described later is performed. On the other hand, in S912, when the video recording control unit 176 confirms that the operation signal of the high audio sensor 7 has been received (S912 / Yes), the corresponding video No. in the captured video recording table in the video recording unit 175 is displayed. "Yes" is registered in the high voice item corresponding to (S914).

  Next, the importance level determination unit 176A of the video recording control unit 176 includes a corresponding video No. in the captured video recording table in the video recording unit 175. With reference to the behavior detection item, the passenger number item, and the high voice item corresponding to, it is determined whether or not all of the conditions 1 to 3 indicating an event with a high possibility of crime are satisfied (S915). At this time, when determining that all of the conditions 1 to 3 are satisfied (S915 / Yes), the importance determination unit 176A determines that the importance of the video in the car 3 is “7” (S916). ), Which will be described later.

  In S915, when the importance level determination unit 176A determines that all of the conditions 1 to 3 are not satisfied, that is, at least one of the conditions 1 to 3 is not satisfied (S915 / No), only the conditions 1 and 3 are satisfied. Whether or not is established is determined (S917). At this time, if the importance determination unit 176A determines that only condition 1 and condition 3 are satisfied (S917 / Yes), it determines that the importance of the video in the car 3 is “6” (S918). ), Which will be described later.

  In S917, when the importance determination unit 176A determines that only the condition 1 and the condition 3 are not satisfied (S917 / No), the importance determination unit 176A determines whether only the condition 1 and the condition 2 are satisfied (S919). ). At this time, when the importance level determination unit 176A determines that only the condition 1 and the condition 2 are satisfied (S919 / Yes), the importance level determination unit 176A determines that the importance level of the video in the car 3 is “5” (S920). ), Which will be described later.

  In S919, when the importance determination unit 176A determines that only the condition 1 and the condition 2 are not satisfied (S919 / No), the importance determination unit 176A determines whether only the condition 2 and the condition 3 are satisfied (S921). ). At this time, when the importance level determination unit 176A determines that only condition 2 and condition 3 are satisfied (S921 / Yes), it determines that the importance level of the video in the car 3 is “4” (S922). ), Which will be described later.

  In S921, when the importance determination unit 176A determines that only the condition 2 and the condition 3 are not satisfied (S921 / No), the importance determination unit 176A determines whether only the condition 1 is satisfied (S923). At this time, if the importance level determination unit 176A determines that only the condition 1 is satisfied (S923 / Yes), it determines that the importance level of the video in the car 3 is “3” (S924), which will be described later. The process of S930 is performed.

  In S923, when the importance determination unit 176A determines that only the condition 1 is not satisfied (S923 / No), the importance determination unit 176A determines whether only the condition 2 is satisfied (S925). At this time, if the importance level determination unit 176A determines that only condition 2 is satisfied (S925 / Yes), it determines that the importance level of the video in the car 3 is “2” (S926), which will be described later. The process of S930 is performed.

  In S925, when the importance determination unit 176A determines that only the condition 2 is not satisfied (S925 / No), the importance determination unit 176A determines whether only the condition 3 is satisfied (S927). At this time, if the importance level determination unit 176A determines that only condition 3 is satisfied (S927 / Yes), it determines that the importance level of the video in the car 3 is “1” (S928), which will be described later. The process of S930 is performed.

  In S927, when the importance determination unit 176A determines that only the condition 3 is not satisfied (S927 / No), the importance determination unit 176A determines that the importance of the video in the car 3 is “0” (S929). ), The corresponding video No. in the photographed video recording table in the video recording unit 175. Is incremented (S930), and the processing from S902 is repeated. Note that in the example shown in FIG. The behavior detection item corresponding to 1 is “None”, the passenger number item is “3”, and the high voice item is “None”, and none of the conditions 1 to 3 shown in FIG. The degree determination unit 176A determines that the importance is “0”.

  By repeating the above processing, for example, when the video in the car 3 photographed by the stereo camera 6 is recorded 100 times, the video No. in the photographed video recording table is recorded. Recording date / time items, behavior detection items, passenger number items, high voice items, and importance items corresponding to 1 to 100 are registered. As a result, a captured video recording table recorded in the video recording unit 175 is created.

  Next, creation processing and transmission processing of a captured video list transmission table by the video recording control unit 176 will be described in detail with reference to the flowchart of FIG.

  FIG. 10 is a flowchart showing the flow of processing for creating and transmitting a captured video list transmission table by the video recording control unit 176.

  As shown in FIG. 10, the video recording control unit 176 confirms whether or not a list acquisition request signal is received from the center device 18 via the center device communication unit 177 (S1001). At this time, when the video recording control unit 176 confirms that the list acquisition request signal has not been received (S1001 / No), the processing of S1001 is repeated.

  On the other hand, when the video recording control unit 176 confirms that the list acquisition request signal has been received in S1001 (S1001 / Yes), the list creation unit 176B of the video recording control unit 176 captures the images recorded in the video recording unit 175. Among the importance items in the video recording table, “7” having the highest importance is set as a search target (S1002).

  Next, the list creation unit 176B transmits the transmission data No. registered in the captured video list transmission table. (S1003), for example, transmission data No. 1 to 100 are newly assigned, and the captured video list transmission table is set as the transmission data No .. 1 to transmission data No. Arrange in order from the top up to 100. Then, the list creation unit 176B displays the video No. in the captured video recording table recorded in the video recording unit 175. Video No. for searching the video signals in order. Is initialized (S1004).

  Next, the list creation unit 176B displays the video No. in the captured video recording table. Is searched from the beginning, and the searched video No. It is determined whether or not the degree of importance corresponding to “7” matches the search target “7” (S1005). At this time, the list creation unit 176B searches for the searched video No. If it is determined that the degree of importance corresponding to “7” does not match “7” (S1005 / No), the processing of S1008 described later is performed.

  On the other hand, in S1005, the list creation unit 176B searches for the searched video No. When it is determined that the importance corresponding to “7” matches “7” (S1005 / Yes), the corresponding transmission data No. No. corresponding to The video No. searched in the photographic video recording table in the item, recording date / time item, and photographic video thumbnail data item. , The video No. And the thumbnail data of the video signal of the stereo camera 6 are registered (S1006).

  In the example shown in FIG. 6, the video No. corresponding to the importance “7” of the captured video recording table recorded in the video recording unit 175 is recorded. The item is “3”, and the recording date / time item is “2015/1/20 08:08”. Therefore, the list creation unit 176B includes the corresponding transmission data No. in the photographed video list transmission table. No. corresponding to Items “3”, “2015/1/20 08:08”, and video no. The thumbnail data of the video signal of the stereo camera 6 is registered.

  Next, the list creation unit 176B displays the video No. in the captured video list transmission table. Item, recording date / time item, and transmission data No. that have been registered in the captured video thumbnail data item. (S1007) and the next transmission data No. is incremented. No. corresponding to The process proceeds to registration to the item, the recording date / time item, and the captured video thumbnail data item.

  Next, the list creation unit 176B selects the first video No. in the photographed video recording table. 1 to the last video No. Up to 100, video Nos. With importance “7” to be searched. It is determined whether or not all the items have been searched (S1008). At this time, the list creation unit 176B displays the video No. with importance “7” to be searched. If it is determined that all of the images have not been searched (S1008 / No), the searched video No. Is incremented (S1009), and the processing from S1005 is repeated.

  On the other hand, in S1008, the list creation unit 176B displays the video No. with importance “7”. If it is determined that all items have been searched (S1008 / Yes), it is determined whether or not “0” having the lowest importance among the importance items in the captured video recording table is set as the search target (S1010). At this time, if the list creation unit 176B determines that “0” having the lowest importance is not set as a search target (S1010 / No), the list creation unit 176B decrements the importance “7” that is the current search target (S1011). ), The importance “6” is set as a new search target. Then, the processing from S1004 is repeated until “0” having the lowest importance is set as a search target.

  Next, in S1010, when the list creation unit 176B determines that “0” having the lowest importance is set as the search target (S1011 / Yes), the thumbnail data of the video in the car 3 is in descending order of importance. Transmission data No. The creation of the photographed video list transmission table arranged 1 to 100 is completed. Then, the video recording control unit 176 transmits the captured video list transmission table to the center device 18 via the center device communication unit 177, so that the video recording control unit 176 creates and transmits the captured video list transmission table. Exit.

  According to the car video recording system according to the present embodiment configured as described above, the center device 18 outputs the photographed video list transmission table created by the list creation unit 176B of the video recording control unit 176 to the display device. Thus, the thumbnail data of the videos in the car 3 can be displayed in a list on the screen of the display device in descending order of importance determined by the importance determining unit 176A of the video recording control unit 176. Therefore, an operator who confirms the video in the car 3 easily searches for a video that needs to be preferentially reproduced from videos recorded in the video recording processing device 17 with a high possibility of crime. be able to. Thus, the in-car video recording system according to the present embodiment can improve convenience when searching for a desired video with a high possibility of crime.

  Further, in the car video recording system according to the present embodiment, the behavior analysis unit 163 determines that the user is rampant in the car 3 as an event with a high possibility of crime in the car 3, Three conditions 1 to 3 are set, in which the number of passengers in the car 3 is calculated as two by the camera image analysis unit 173 and the high sound sensor 7 is operated. Therefore, the importance level determination unit 176A can evaluate the importance level of the video in the car 3 in multiple stages according to the combination of the established results of the conditions 1 to 3. As a result, the operator can efficiently select and play back a video with a high possibility of crime from the photographed video list transmission table displayed on the display device of the center device 18, so that the video in the car 3 can be confirmed. The labor and time required for work can be saved.

  In addition, this embodiment mentioned above was described in detail in order to demonstrate this invention easily, and is not necessarily limited to what is provided with all the demonstrated structures. Further, a part of the configuration of an embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of an embodiment.

  In the present embodiment, the captured video list transmission table created by the list creation unit 176B is a transmission data No. as shown in FIG. The case where the item, the recording date and time item, and the captured video thumbnail data item are associated with each other has been described. However, the present invention is not limited to this case, and the importance determined by the importance determining unit 176A is added. May be. Thereby, it is possible to provide higher convenience to the worker who confirms the video in the car 3.

DESCRIPTION OF SYMBOLS 1 ... Elevator, 2 ... Hoistway, 3 ... Car, 6 ... Stereo camera (video acquisition device) (event detection device), 7 ... High voice sensor (voice detection device) (event detection device), 14 ... Elevator control device , 16 ... behavior detection device (event detection device), 17 ... video recording processing device, 18 ... center device, 19 ... public communication line 161 ... elevator communication unit, 162 ... camera video acquisition unit, 163 ... behavior analysis unit, 164 ... Image recording processing device communication unit, 171 ... elevator communication unit, 172 ... camera image acquisition unit, 173 ... camera image analysis unit (user detection device) (event detection device), 174 ... behavior detection device communication unit, 175 ... video recording , 176 ... Video recording control part, 177 ... Center device communication part

Claims (4)

Provided in an elevator equipped with a car that moves up and down in the hoistway and a video acquisition device that acquires video in the car,
In an elevator car video recording system for recording the video in the car acquired by the video acquisition device and searching for the recorded video in the car,
An event detection device for detecting a predetermined event with a high possibility of crime in the car;
Every time the video in the car is acquired by the video acquisition device, the video is recorded as video data associated with identification information for identifying whether the predetermined event is detected by the event detection device A recording section;
When the video in the car acquired by the video acquisition device is recorded as the video data, the importance of the video is determined according to a predetermined importance table based on the identification information recorded in the video recording unit. A degree of importance, a degree of importance determination unit that records the degree of importance in the video recording unit in association with the video data ;
When receiving a list acquisition request signal from a center device that remotely monitors the operation and state of the elevator, the video data recorded in the video recording unit according to the importance determined by the importance determination unit and a list creation unit that creates a list of to search for the image of the passenger in the car from,
In the importance level table, the predetermined event specified by the identification information is associated with the importance level in the elevator car video recording system. In the elevator car video recording system according to claim 1,
The event detection device includes:
A behavior detection device for detecting the behavior of a user in the car;
A user detection device for detecting the number of users in the car;
Including at least one voice detection device that detects voice generated in the car,
The predetermined event indicates that a user in the car is exhibiting a preset behavior, that the number of users in the car is a preset number of people, and that the car is in the car An elevator car video recording system characterized in that the generated sound is at least one of a preset volume or more. In the elevator car video recording system according to claim 1 or 2,
  2. The elevator car video recording system according to claim 1, wherein the list includes thumbnail data of the video data arranged in descending order of importance. In the elevator car image recording system according to any one of claims 1 to 3,
A communication unit that transmits the list created by the list creation unit to the center device that is a transmission source of the list acquisition request signal;
The center device outputs the received list to a display device.
Elevator car video recording system characterized by