KR101059124B1 - Elevator surveillance system and control method - Google Patents

Abstract

An elevator video surveillance system and a control method thereof. The present invention captures the interior of the elevator to obtain an image (original image), the camera unit, the position detection unit for detecting the position of the elevator, and the position information detected by the position detection unit by integrating the image into the original image An information integration unit for obtaining an integrated image, an information reading unit for reading the position information of the elevator in the integrated image, and an indexing unit for retrieving the position information corresponding to at least one of the original image and the integrated image to be searchable; Provide elevator video surveillance system.

Description

Elevator Monitoring System and Method for Controlling the Same

The present invention relates to an elevator video surveillance system and a control method thereof, and more particularly, to an elevator video surveillance system and a control method capable of more effectively monitoring the internal situation of an elevator.

In general, a camera such as CCTV is installed inside the elevator, and the inside of the elevator can be monitored in real time in a remote place, for example, a management room or a security room. In addition, the image taken by the camera is stored for a predetermined period of time can be used later in case of crime.

However, the conventional elevator video surveillance system and its control method have the following problems.

First, in the case of a crime or the like, there are many cases in which a selective search for a person who gets on or off a specific floor of a building is necessary. In the prior art, however, the camera simply photographs the interior of the elevator. Therefore, it is not possible to search only images of a specific floor in the captured image, for example, only a person who visited a specific floor.

Second, even in the case of monitoring the inside of an elevator in real time in the guard room, it is difficult to check whether the visitor gets off the floor that the visitor originally promised to visit. Because the camera simply photographs the interior of the elevator, it is difficult to know from which floor the visitor gets off only by the video taken by the camera. Of course, even if the LED (LED) for displaying the floor inside the elevator by the camera is taken together, it is difficult to accurately identify the display content of the LED in the captured image, it is also difficult to know from which floor the visitor is getting off.

Third, even if the occupant requests rescue from a crime or accident in an elevator, it is practically impossible to transmit the rescue request in the situation room without using an emergency call means. Because there is an emergency call or bell inside the elevator, it is also not effective because the passenger must be activated. In addition, the interior of the elevator can be monitored in real time in the management room, security room, etc., but it is difficult to practically recognize this situation unless the worker and the like continue to watch the monitor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an elevator video surveillance system and a control method thereof capable of effectively monitoring the interior of an elevator.

The present invention has been invented to solve the above problems, the present invention comprises a camera unit for taking an image (original image) by taking the interior of the elevator; A position detecting unit detecting a position of the elevator; An information integration unit for integrating the location information detected by the location detection unit into the original image to obtain an integrated image; An information reading unit reading the position information of the elevator in the integrated image; Provided is an elevator video surveillance system comprising an indexing unit for retrieving the position information corresponding to at least one of the original image and the integrated image to be searchable.

On the other hand, the elevator further comprises a door opening and closing detection unit for detecting the opening and closing of the door, the information integration unit is preferred to integrate the door opening and closing information detected by the door opening and closing detection unit in the integrated image as an image. The information reading unit may read the door opening and closing information from the integrated image, and the indexing unit may search the door opening and closing information corresponding to at least one of the original image and the integrated image.

The camera unit photographs the door of the elevator together, and the information reading unit determines whether the door is opened or closed by using image processing, and the indexing unit uses the read door opening / closing information for at least one of the original image and the integrated image. You can make it searchable by matching with. At this time, the elevator door is preferably provided with a predetermined mark.

On the other hand, it further comprises a sound detection unit for detecting the sound of the interior of the elevator, it is preferable that the information integration unit integrates the sound signal detected by the sound detection unit in the integrated image as an image. The information reading unit may read the sound information from the integrated image, and the indexing unit may search the sound information by matching the read sound information with at least one of the original image and the integrated image. Further, it is more preferable to generate an alarm if the sound level of the sound information is equal to or greater than a predetermined value.

On the other hand, it is preferable that the information integration unit integrates the location information to a predetermined position of the original image.

According to another embodiment of the present invention, the present invention includes a position display unit for displaying the position of the elevator; A camera unit which captures an image of the location display unit and the interior of the elevator together to obtain an image; An information reading unit reading the position information of the elevator from the image; Provided is an elevator video surveillance system comprising an indexing unit for retrieving the position information in correspondence with the image.

And at least one of a door opening / closing detecting unit detecting whether the elevator door is opened or closed and an acoustic detecting unit detecting the sound inside the elevator. The door opening and closing information obtained from the door opening and closing detecting unit and the sound detecting unit is further included. And an information integration unit converting the sound information into an image and integrating the image into the image photographed by the camera unit. In addition, the position display unit is preferably an LED.

According to another embodiment of the present invention, the present invention is at least a position detecting unit for detecting the position of the elevator, the door opening and closing detection unit for detecting the door opening and closing of the elevator and the sound detection unit for detecting the sound inside the elevator One dog; An information conversion unit for converting the position information, the door opening and closing information, and the sound information obtained by the position detecting unit, the door opening and closing detecting unit, and the sound detecting unit into an image; An output unit which outputs the image converted by the information conversion unit; A camera unit for photographing the output unit and the interior of the elevator together to obtain an image; An information reading unit reading the position information of the elevator from the image; Provided is an elevator video surveillance system comprising an indexing unit for retrieving the position information in correspondence with the image.

The information conversion unit preferably converts the position information, the door opening and closing information, and the sound information into an image.

According to another embodiment of the present invention, the present invention comprises a camera unit for photographing the interior of the elevator to obtain an image (original image); A position sensing unit for sensing position of the elevator to obtain position information; A central controller which receives the original image and the location information; Provided is an elevator video surveillance system comprising an indexing unit for searching the location information corresponding to the original image.

The camera unit has an IP address, and the location information of the location detecting unit is transmitted to the central control unit through a transmission line of the camera unit. The apparatus may further include at least one of a door opening and closing detection unit detecting whether the door of the elevator is opened and closed and an acoustic detection unit detecting the sound of the elevator, and the door opening and closing information and the sound detected by the door opening and closing detection unit. The sound information detected by the sensing unit is preferably transmitted to the central control unit through the transmission line of the camera unit.

According to still another embodiment of the present invention, the present invention includes a photographing step of photographing the interior of the elevator; A position sensing step of sensing a position of the elevator; In order to be able to search the position information obtained in the position detection step, it provides a control method of the elevator image detection system comprising an indexing step of mapping the position information to the image obtained in the photographing step.

The method may further include an information integration step of creating an integrated image that adds the location information to the image obtained in the photographing step, and an information reading step of reading the location information from the integrated image.

The method may further include a door opening and closing detection step of detecting door opening and closing of the elevator to obtain door opening and closing information, and integrating the door opening and closing information into the integrated image in the information integration step, and in the information reading step. It is preferable to read the door opening and closing information in the image.

The method may further include a sound detection step of detecting sound inside the elevator to obtain sound information, wherein the sound information is integrated into the integrated image in the information integration step, and the sound in the integrated image in the information reading step. It is desirable to read the information. Here, it is preferable to further include an alarm step for generating an alarm if the sound level of the sound information is greater than or equal to a predetermined value.

The door opening and closing detection step of detecting whether the elevator door is opened or closed may further include door opening and closing detection step. The door opening and closing information may be corresponded to the image obtained in the photographing step in the indexing step. The method may further include a sound detection step of detecting sound inside the elevator to obtain sound information, and the sound information may correspond to an image obtained in the photographing step in the indexing step.

In addition, in the location detecting step, the location information may be determined by image processing of the floor display photographed in the photographing step. In addition, positioning the position display unit to be interlocked with the floor display unit in the photographing range of the camera used in the photographing step, photographing the position display unit in the photographing step, and determining the position information by image processing the photographed position display unit. desirable.

The effects of the above-described elevator video surveillance system and its control method are as follows.

First, according to the present invention, since the information on the location of the elevator is indexed to the photographed image so as to be searchable, it is possible to search only the image for a specific floor in the future, thereby providing a faster and more convenient search. In addition, the door opening and closing information of the elevator can also be indexed in the image, which enables faster and more convenient search.

Second, the image captured by the monitor (display unit) such as the management room or guard room can be displayed at the same time the position of the elevator and the door opening and closing, etc., there is an advantage that can effectively monitor the interior of the elevator.

Third, there is an advantage that the emergency information can be automatically informed to the management room or the guard room using the acoustic information inside the elevator.

1 is a configuration diagram showing a first embodiment of an elevator video surveillance system according to the present invention
2 is a view showing an example of the door opening and closing detection method of FIG.
3 is a flowchart illustrating a control method of FIG. 1.
4 illustrates a screen of the display unit of FIG. 1;
5 is a flowchart illustrating an abnormality detection and processing step of FIG.
6 is a configuration diagram showing a modification of FIG.
7 is a configuration diagram showing a second embodiment of the elevator video surveillance system according to the present invention
8 is a diagram illustrating a screen of the display unit of FIG. 5.
9 is a flowchart illustrating a control method of FIG. 5.
10 is a configuration diagram showing a third embodiment of the elevator video surveillance system according to the present invention
11 is a configuration diagram showing a fourth embodiment of the elevator video surveillance system according to the present invention

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 4, a first embodiment of an elevator video surveillance system and a control method thereof according to the present invention will be described.

First, referring to Figure 1, the overall configuration of the elevator video surveillance system according to the present embodiment will be described. In the central control unit 30, which is usually installed remotely in the management room, security room, or the like, a camera unit 12 for capturing the interior of the elevator is connected through the transmission line 11. In addition, the central control unit 30 provides location information of the elevator. The sensing position sensing unit 14 is connected through another transmission line 14a. The central control unit 30 is connected to the central control unit 32, the storage unit 38, the display unit 34, the alarm unit 36 and the like connected to the central control unit 32. In the present embodiment, the indexing unit 40 indexes the image captured by the camera unit 12 based on the elevator position using the position information detected by the position detecting unit 14. Details will be described later)

Each component will be described in detail as follows.

First, the position detecting unit 14 will be described in detail as follows. The location detecting unit 14 may use various methods as information on the location of the elevator (hereinafter, referred to as “location information”), for example, on which floor or where the elevator is located.

For example, it is possible to directly obtain a control signal for controlling the elevator from the elevator itself to obtain the position information of the elevator. However, in this manner, in order to obtain the position information of the elevator, it is necessary to draw a predetermined transmission line from the control unit of the elevator itself and connect it to the central control unit 32 of the elevator video surveillance system. In this case, the control protocol used in the control unit of the elevator should be known. However, even if the manufacturers of the elevators are different and the same manufacturers, the protocols may be different if the elevator production years are different. Therefore, it is difficult to apply in the actual site, unless the manufacturer manufactured the elevator to match the communication protocol for detecting the location information of the elevator in the elevator control unit. Therefore, it is preferable to adopt a method of obtaining position information separately, that is, a separate position detecting unit 14. The position detecting unit 14 may use, for example, a known technology, for example, laser or RFID tag. (Registration Utility Model 20-345796, Patent Publication 10-2006-5088, Patent Publication 10-2007-65724 The position of the elevator may be determined by calculating the rotation speed of the driving motor of the elevator or the driving pulley connected thereto. In the case of using such a position detecting unit 14, the position detecting signal is in the form of an electrical signal, which is transmitted to the central control unit 32.

On the other hand, the indexing unit 40 indexes the image captured by the camera unit 12 (hereinafter referred to as "original image" for convenience) and the position information of the elevator obtained by the position detecting unit 14, and searches for an image according to the position information in the future. Make it possible. An example of the indexing method is as follows. When the original image is a method of storing a still image, it is a combination of a plurality of frames (a kind of still image), and each frame may be stored using a unique identifier, for example, a shooting time. That is, the identifier (normal file name) of the frame photographed at 09:30:30 on January 3, 2010 may be "2010-0103-093030". And, if the location information of the elevator corresponding to the frame is the third floor, it can be indexed as "2010-0103-093030-03" and stored as a separate file in the storage unit 38, that is, a kind of database can be constructed. Of course, each frame may be set to "2010-0103-093030-03" so that the file name (ie, identifier) itself has location information, and may not have a separate indexing file. In addition, when the original image is a video storage method, it is preferable to construct the location information of the elevator in a separate database based on time.

With this arrangement, it is possible to search only the image at the specific position later on the basis of the position information of the elevator. However, the indexing unit 40 is not necessarily physically separated from the central control unit 32 and may perform the function of the indexing unit 40 in the central control unit 32.

In addition, the central control unit 32 is preferably connected to the door opening and closing detection unit 16 for detecting whether the door of the elevator is opened or closed through the transmission line (16a). The door open / close detection unit 16 may use a proximity sensor or an optical sensor installed in the door. In addition, it may be determined whether the door is opened or closed by image processing the image captured by the camera unit 12 without using a separate sensor. For example, as shown in FIG. 2, the marking part 4 specific to the predetermined position inside the elevator door 2 (position where a camera part can be photographed) can be made. In this way, as shown in FIG. 2 (a), in the state in which the door 2 is closed, the marker portion 4 appears in the image 34. However, as shown in FIG. 2B, in the state in which the door 2 is opened, the marker portion 4 does not appear on the image 34. Therefore, if the marker 4 is used, it is relatively easy to detect (determine) whether the door is opened or closed by using image processing. On the other hand, the indexing unit 40 is to index the original image and the door opening and closing information, it is preferable to be able to search the image in accordance with the door opening and closing information in the future. Since the indexing method may use the same method as the location information, description thereof will be omitted.

On the other hand, it is preferable that the sound sensor 18 for detecting the sound generated inside the elevator is further connected to the central controller 32 through the transmission line 18a. The sound sensing unit 18 may use various types of known materials. In addition, it is preferable that the indexing unit 40 indexes the image photographed by the camera unit 12 and the sound information obtained from the sound detecting unit 18, so that the image can be searched according to the sound information in the future. Since the indexing method can use the same method as the location information, description thereof will be omitted. In addition, if the sound detection unit 18 is provided, it is preferable to automatically activate the alarm unit 36 when the sound level in the elevator is equal to or higher than a predetermined value. In this way, it is possible for a passenger to know such a situation in a guard room or the like without the emergency call button being pressed in case of a rescue request from a crime or an emergency. In addition, recently, sensors having a function of detecting sound and vibration have been developed and used for crime prevention, and it is preferable to use such a sensor as the sound sensing unit 18. This is because when such a sensor is used, an abnormal situation can be determined by vibration when the sound is below a predetermined value.

Referring to Figures 1 and 3, the control method of the elevator video surveillance system according to the first embodiment is as follows. In this embodiment, a case where the position detecting unit 14, the door opening and closing detecting unit 16, and the acoustic detecting unit 18 are all installed will be described by way of example.

The camera unit 12 captures the interior of the elevator to obtain an original image, and sends it to the central control unit 32 through the transmission line 11. (S12) And the position detecting unit 14, the door opening and closing detecting unit 16. And the sound detection unit 18 obtains the position information, the door opening and closing information, and the sound information of the elevator, respectively, and sends them to the central control unit 32 through the respective transmission lines 14a, 16a, and 18a. (S14, S16, S18 The indexing unit 40 indexes the photographed image, the elevator position information, the door opening and closing information, and the acoustic information. (S40) For example, a frame (image) captured at 09:30:30 on January 3, 2010. In this case, if the elevator position is the third floor, the door is open (for example, 00 is open and 11 is closed), and the sound level is 1, indexing is performed such as "2010-0103-093030-03-00-01". The storage unit 38 can be stored as a separate file. (S50) Therefore, according to the present embodiment, the elevator position and the door opening Or not, only the specific desired image, based on the sound level or the like is able to retrieve.

On the other hand, it is preferable that the image of the interior of the elevator in the camera unit 12 is displayed on the display unit 34 in real time. (S60) At this time, as shown in Figure 4, the camera unit 12 is photographed Although the original image 122 may be displayed as it is, it is preferable to display the obtained elevator position information 124, the door opening and closing information 126, and the sound information 128 together. In addition, the location information 124 of the elevator, the door opening and closing information 126 and the sound information 128 is preferably displayed in a specific region (120). It is also desirable to issue an alarm if necessary (S70).

For example, as shown in Fig. 5, when the sound level of the sound information is equal to or greater than a predetermined value (S72), it is preferable to generate an alarm using the alarm unit 36 that can be visually and visually recognized. S74) That is, when there is an emergency situation inside the elevator, if there is a scream, loud noise, etc. of the occupant, it may automatically detect and generate an alarm. That is, when the sound in the elevator is more than a predetermined value it can automatically generate an alarm to the situation room, etc., it is possible to detect in the situation room without pressing the emergency call button in case of emergency or emergency rescue request.

Meanwhile, as shown in FIG. 6, when the camera unit 12 is a camera using a TCP / IP transmission method, only one transmission line 110 may be used. In this case, the camera unit 12 has an IP address. In addition, the position detecting unit 14, the door opening and closing detecting unit 16, and the sound detecting unit 18 are connected to the camera unit 12, and the position information, the door opening and closing information, and the sound detecting information are stored in the camera unit 12. It is included in the transmitted packet and can be sent to the central controller 32 using one transmission line 110. In this case, the transmission line 110 may be an unshielded twisted pair cable (UTP cable) or a coaxial cable such as a Bayonet Neil-Concelman (BNC) cable. The transmission method is preferably Ethernet.

In addition, the camera unit 12 is used to connect to a separate external IP server (IP server), in this case, the position detecting unit 14, the door opening and closing detecting unit 16 and the sound detecting unit 18 is the IP You are connected to the server.

 Referring to Figure 7, a second embodiment of an elevator video surveillance system according to the present invention will be described.

In the first embodiment described above, each of the transmission lines 11, 14a, 16a, and 18a corresponding to the camera unit 12, the position detecting unit 14, the door opening and closing detecting unit 16, and the acoustic detecting unit 18 are It is connected to the central control unit 32. (See FIG. 1) However, since the plurality of transmission lines should be connected to the guard room, which is usually remote from an elevator, the connection length is long, and the installation is complicated, and noise due to telecommunication is problematic. Can be. Therefore, in this embodiment, unlike the above-described embodiment, only one transmission line 11a corresponding to the camera unit 12 is used for simplifying the structure and for accurate communication.

It will be described in detail as follows.

The present embodiment includes an information integration unit 10 that integrates the captured image, the location information of the elevator, and the like into an image (image) to create a new image (hereinafter referred to as an "integrated image"). That is, the camera unit 12 and the position sensing unit 14 are connected to the information integration unit 10, and the information integration unit 10 is connected to the central control unit 32 through one transmission line 11a. On the other hand, when the door opening and closing detection unit 16 and the sound detection unit 18 is provided, the door opening and closing detection unit 16 and the sound detection unit 18 is also connected to the information integration unit 10.

The transmission line 11a is used to transmit an image to the central control unit 32, and it is possible to use the transmission line 11 of the conventional camera unit 12 as it is (see FIG. 1). The 10 is preferably installed inside or adjacent to the elevator, and thus, the camera 12, the position detecting unit 14, the door opening and closing detecting unit 16, and the sound detecting unit 18 are arranged in the information integration unit 10. ) Transmission lines 12b, 14b, 16b, and 18b are very short transmission lines, so installation is simple and there is no problem in communication quality.

On the other hand, the information integration unit 10 functions as a kind of overlay function that integrates the location information, the door opening and closing information and the sound information in the form of electrical signals into the original image. For example, in the information integration unit 10, the location information imaged in the original image, the imaged door opening and closing information and the imaged sound information (hereinafter referred to as "image location information, image door opening and closing information, image acoustic information" for convenience). Overlay to create a single integrated image, and sends the integrated image to the central control unit 32 through one transmission line (11a). That is, when all the information is integrated into the image, all the information can be sent to the central control unit 32 in the form of an image through one transmission line 11a.

Referring to FIG. 8, a detailed description of integrating position information, door opening and closing information, and sound information into an image is as follows.

The information integrating unit 40 receives the position information, the door opening and closing information, and the sound information in the form of an electrical signal, and performs image conversion processing to black and white or colored images, numbers, and characters, and converts the converted image, that is, image position information 224. ), The image door opening and closing information 226 and the image sound information 228 is preferably added to a predetermined position of the original image 122 to obtain an integrated image 100. That is, the integrated image 100 is made by overlaying one or more of the image position information 224, the image door opening and closing information 226, or the image sound information 228 at a predetermined position 220 of the original image 122. The integrated image 100 is sent to the central control unit 32. In this case, the image location information 224 may be represented by a general number, and it is preferable that the elevator displays the floor to which the number moves. In addition, the image door opening and closing information 226 may also display the open and closed states by predetermined characters, symbols, and figures. It is also possible to indicate that the elevator door is open when the color is red, and that it is closed when it is blue, so that the passenger may know from which floor. The image sound information 228 may be displayed by a symbol or a number corresponding to the sound level, and of course, a high frequency, a low frequency, and the like may be displayed according to a function of the sound detection unit.

On the other hand, the imaged position information 224, the door opening and closing information 226 and the sound information 228 included in the integrated image 100 is not easy to search because it is an image form. Therefore, the central control unit 300 is preferably read back through the image processing in the form of searchable text.

It will be described in detail as follows. An information reading unit 42 is connected to the central control unit 32, and the information reading unit 42 is an elevator in searchable form (hereinafter referred to as "text form" for convenience) by using image processing in an integrated image (image). The location information, door opening and closing information, and sound information of the reading are separated, that is, extracted. The indexing unit 40 indexes the extracted location information, door opening and closing information, and sound information with at least one of the original image and the integrated image so that the indexing unit 40 can index and search.

The information reading unit 42 will be described in detail as follows. The information reading unit 42 scans the integrated image and uses image processing techniques such as RGB color comparison or pattern recognition to read image location information, image door opening and closing information, and image sound information to search for location information and doors. Opening and closing information and sound information (hereinafter referred to as "text position information, text door opening and closing information, text acoustic information" respectively) for convenience. Such an image processing technique is a technique used in reading a license plate of a vehicle in an image of a photographed vehicle, and since such technique may be used, a detailed description thereof will be omitted. The indexing unit 40 indexes the integrated image, the positional information, the door opening and closing information, and the acoustic information, respectively, and stores them in the storage unit 38. Since indexing has been described in the above-described embodiment, a detailed description thereof will be omitted.

In the meantime, the information integrator 10 may place the image information 224, 226, and 228 at a specific position 220. This is because the information reading unit 42 does not need to process the entire integrated image, but only image processing the predetermined region 220, there is an advantage that the processing speed can be increased.

Meanwhile, in the present invention, the central control unit 32, the information reading unit 42, and the indexing unit 40 are not necessarily physically separated. For example, the central control unit 32 may perform the functions of the information reading unit 42 and the indexing unit 40, and the indexing unit 40 may also perform the functions of the information reading unit 42. .

7 and 9, a control method of the elevator video surveillance system according to the present embodiment will be described. In this embodiment, a case where the position detecting unit 14, the door opening and closing detecting unit 16, and the acoustic detecting unit 18 are all installed will be described by way of example.

The position detecting unit 14, the door opening and closing detecting unit 16, and the acoustic detecting unit 18 obtain the position information, the door opening and closing information, and the acoustic information of the elevator in the form of electric signals, respectively. (S12, S14, S16, S18) The information integrating unit 10 converts such electrical form information into an image and integrates the position information, door opening and closing information, and sound information of the elevator in the converted image form into the original image obtained by the camera unit 12. S20) The integrated information, that is, the integrated image, is transmitted to the central control unit 32 through one transmission line 11a.

The information reading unit 42 reads the position information, the door opening and closing information and the sound information of the elevator integrated in the original image in the form of an image using image processing. (S30) Indexing The unit 40 indexes the image, the elevator position information, the door opening and closing information, and the sound information. (S40) For example, a frame (image) photographed at 09:30:30 on January 3, 2010, and at this time, If the elevator is located on the 3rd floor, the door is open (for example, 00 is open and 11 is closed), and the sound level is 1, the storage unit is indexed as "2010-0103-093030-03-00-01". In operation 38, the user can search only the desired specific image based on the elevator position, the door opening / closing, the sound level, and the like. In addition, the central control unit 30 receives the integrated image transmitted through the transmission line is preferably stored in the display (S60) and the storage unit 32 on the display (34).

The information reader 42 may image the location information area only when the door is opened or closed. That is, the information reading unit 42 may minimize the load by enabling the image processing of the location information area only when the elevator is opened.

According to the present embodiment described above, by simultaneously sending a signal to the transmission line for transmitting the video signal of the camera unit without having to install a separate transmission line signal for transmitting the position information and the door opening and closing information, the occupant's floor movement and safety situation There is an advantage that can be monitored in real time, there is no need to install a separate transmission line for transmitting location information or door opening and closing information or sound information, and there is an advantage that can quickly respond to and recognize the rescue request inside the elevator.

Referring to FIG. 10, a third embodiment of an elevator video surveillance system according to the present invention will be described.

Although the present embodiment has the same principle as the above-described second embodiment, the method of obtaining the position information of the elevator is different. That is, in this embodiment, the position display unit 19 indicating the position of the elevator is provided separately. Other components are substantially the same as the second embodiment, and thus description thereof is omitted.

Position display unit 19 indicating the position of the elevator is provided separately, the position display unit 19 is provided with a position that can be photographed by the camera unit 12. That is, the elevator location information is included in the image photographed by the camera unit 12 without being separately integrated in the information integration unit 10.

The reason why the separate location display unit 19 is provided is that the floor display unit, such as an LED normally installed in an elevator, may not be photographed according to its position, and image processing may be difficult even if it is photographed. The auxiliary position display unit 19 interlocked with each other may be positioned in the photographing range of the camera unit 12, and image information of the photographed position display unit 19 may be processed to determine position information. Therefore, the position display unit 19 may be configured of an LED or the like, and it is preferable to appropriately determine the size, brightness, and the like so as to facilitate image processing.

Referring to FIG. 11, a fourth embodiment of an elevator video surveillance system according to the present invention will be described.

The principle of this embodiment is the same as that of the second embodiment described above in that one transmission line 11 is used. However, in the present embodiment, the electrical position information, door opening and closing information and sound information obtained from the elevator position detecting unit 14, the door opening and closing detecting unit 16, and the sound detecting unit 18 are converted into an image and outputted. When the camera 12 photographs the inside of the elevator, the output image is photographed together.

In detail, the elevator position detecting unit 14, the door opening and closing detecting unit 16, and the acoustic detecting unit 18 are connected to the information converting unit 60, and the information converting unit 60 is the result of the information conversion. An output unit 62 for indicating is connected. That is, the information conversion unit 60 converts the electrical position information, the door opening and closing information, and the acoustic information obtained from the elevator position detecting unit 14, the door opening and closing detecting unit 16, and the sound detecting unit 18 into images and outputs them. Output to the unit 62. The camera unit 12 photographs the interior of the elevator including the output unit 62, and the image is transmitted to the central control unit 32 through one transmission line 11.

On the other hand, the output unit 62 is composed of LED, etc., it is preferable to determine the size, brightness, etc. as appropriate to facilitate image processing.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

12: camera unit 14: position detection unit
16: door opening and closing detection unit 18: sound detection unit
10: information integration unit 30: central processing unit
40: indexing unit 42: information reading unit

Claims (26)

A camera unit for photographing the interior of the elevator to obtain an image (original image);
A position detecting unit detecting a position of the elevator;
A door opening and closing detection unit detecting whether the door of the elevator is opened or closed;
An information integration unit which integrates the position information detected by the position detection unit and the door opening and closing information detected by the door opening and closing detection unit into an image in the original image to obtain an integrated image;
An information reading unit reading the position information of the elevator and the door opening and closing information in the integrated image;
An elevator video surveillance system comprising an indexing unit for retrieving the position information and the door opening and closing information read by matching the at least one of the original image and the integrated image. delete delete A camera unit for photographing the interior of the elevator to obtain an image (original image);
A position detecting unit detecting a position of the elevator;
An information integration unit for integrating the location information detected by the location detection unit into the original image to obtain an integrated image;
An information reading unit reading the position information of the elevator in the integrated image;
It includes an indexing unit for matching the read position information with at least one of the original image and the integrated image to be searchable,
The camera unit photographs the door of the elevator together, and the information reading unit determines whether the door is opened or closed by using image processing, and the indexing unit corresponds to at least one of the original image and the integrated image. Elevator video surveillance system, characterized in that to make it searchable. The elevator video surveillance system according to claim 4, wherein a predetermined mark is provided on the door of the elevator. According to any one of claims 1, 4 and 5, further comprising a sound detection unit for detecting the sound of the interior of the elevator, wherein the information integration unit is a sound signal detected by the sound detection unit; Elevator surveillance system, characterized in that to integrate the image into the integrated image. The elevator image of claim 6, wherein the information reading unit reads the sound signal from the integrated image, and the indexing unit corresponds to at least one of the original image and the integrated image to search for the elevator image. Surveillance system. The elevator video surveillance system according to claim 7, wherein an alarm is generated when the sound level of the sound signal is greater than or equal to a predetermined value. delete A location display unit for displaying the location of the elevator and consisting of LEDs;
A camera unit which captures an image of the location display unit and the interior of the elevator together to obtain an image;
An information reading unit reading the position information of the elevator from the image;
An indexing unit which allows the read position information to be searched in correspondence with the image;
At least one of a door open / close detection unit detecting whether the door of the elevator is opened and a sound detection unit detecting the sound inside the elevator;
Elevator door monitoring system including an information integration unit for converting the door opening and closing information and the sound information obtained from the door opening and closing detection unit and the sound detection unit into an image captured by the camera unit. delete delete delete delete A camera unit for photographing the interior of the elevator to obtain an image (original image);
A position sensing unit for sensing position of the elevator to obtain position information;
A central controller which receives the original image and the location information;
Elevator image monitoring system comprising an indexing unit for retrieving the position information corresponding to the original image. The elevator surveillance system according to claim 15, wherein the camera unit has an IP address, and the position information of the position sensing unit is transmitted to the central control unit through a transmission line of the camera unit. The method of claim 16, further comprising at least one of a door opening and closing detection unit for detecting whether the door of the elevator opening and closing and an acoustic detection unit for detecting the sound of the elevator, the door opening and closing detected by the door opening and closing detection unit. Elevator information monitoring system, characterized in that the information and the sound information detected by the sound detection unit is transmitted to the central control unit through the transmission line of the camera unit. A photographing step of photographing the interior of the elevator;
A position sensing step of sensing a position of the elevator;
A sound detection step of detecting sound inside the elevator to obtain sound information;
An indexing step of associating the location information with the image obtained in the photographing step so that the location information obtained in the location detecting step can be searched;
An information integration step of creating an integrated image in which the position information and the sound information are added to the image obtained in the photographing step;
And an information reading step of reading the position information and the sound information from the integrated image. delete 19. The method of claim 18, further comprising a door opening and closing detection step of detecting door opening and closing of the elevator to obtain door opening and closing information, integrating the door opening and closing information into the integrated image in the information integration step, and reading the information. And controlling the door opening and closing information in the integrated image. delete 19. The control method of an elevator video surveillance system according to claim 18, further comprising an alarm step of generating an alarm when the sound level of the sound information is equal to or greater than a predetermined value. A photographing step of photographing the interior of the elevator;
A position sensing step of sensing a position of the elevator;
A door opening and closing detection step of detecting door opening and closing of the elevator to obtain door opening and closing information;
An elevator including an indexing step of mapping the position information and the door opening and closing information to an image obtained in the photographing step so that the position information obtained in the position detecting step and the door opening and closing information obtained in the door opening and closing detecting step can be searched. Control method of video surveillance system. A photographing step of photographing the interior of the elevator;
A position sensing step of sensing a position of the elevator;
A sound detection step of detecting sound inside the elevator to obtain sound information;
Elevator image monitoring system comprising an indexing step of mapping the position information and the sound information to the image obtained in the photographing step in order to be able to search the position information obtained in the position detection step and the sound information obtained in the sound detection step. Control method. A photographing step of photographing the interior of the elevator;
A position sensing step of sensing a position of the elevator;
In order to be able to search the position information obtained in the position detection step, including the indexing step of matching the position information to the image obtained in the photographing step,
The control method of the elevator image monitoring system, characterized in that in the position detection step, by determining the position information by image processing the floor display unit photographed in the photographing step. 26. The method of claim 25, wherein a position display unit linked to the floor display unit is positioned in a photographing range of the camera used in the photographing step, the position display unit is photographed in the photographing step, and the photographed position display unit is image-processed for the position information. Control method of the elevator video surveillance system, characterized in that judging.

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