JP3806632B2 - Surveillance camera system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a surveillance camera system.
[0002]
[Prior art]
As shown in FIG. 1, a surveillance camera system includes a plurality of surveillance cameras 1_1 to 1_m, a plurality of spot monitors 2_1 to 2_4, a multiplexer 3 that switches connection between the surveillance camera 1 and the monitor 2, and a plurality of controllers 4_1 to 4_4. What you have is known.
[0003]
Each of the controllers 4_1 to 4_4 is connected to the multiplexer 3 and each of the monitoring cameras 1_1 to 1_m via a communication control line 5 based on RS-485 (EIA 6485 standard).
[0004]
Individual addresses (ID) are assigned to the monitoring cameras 1_1 to 1_m, the multiplexer 3, and the controllers 4_1 to 4_4, respectively. The address is set by, for example, a dip switch provided in each device.
[0005]
Each controller 4_1 to 4_4 controls a device having a designated address by sending a command including the address of the device to be controlled and the control content to the communication control line 5 of RS-485.
[0006]
By the way, in the case where it is desired to remotely control the monitoring camera that provides video to the first spot monitor 2_1 from the first controller 4_1, the address and control contents of the monitoring camera are included from the first controller 4_1. It is necessary to transmit a command to the communication control line 5 of RS-485. For this purpose, the operator of the first controller 4_1 checks which monitoring camera is providing the video to the first spot monitor 2_1, and displays the video on the first spot monitor 2_1. It is necessary to confirm the address of the monitoring camera provided.
[0007]
[Problems to be solved by the invention]
It is an object of the present invention to provide a surveillance camera system that eliminates the need for an operator to confirm the address of a surveillance camera when remotely controlling the surveillance camera that provides video to a predetermined monitor.
[0008]
[Means for Solving the Problems]
A first surveillance camera system according to the present invention includes a plurality of surveillance cameras, a plurality of monitors, a multiplexer that switches connection between the surveillance cameras and the monitor, and a plurality of controllers that remotely control the surveillance cameras via a communication control line. In the monitoring camera system that sends a command including the address of the monitoring camera to be controlled and the control content to the communication control line when each controller remotely controls the monitoring camera, each controller is connected to a predetermined monitor. In controlling the surveillance camera that provides the video, there is provided means for sending the number of the monitor to the multiplexer and inquiring the address of the surveillance camera that is providing the video to the multiplexer. Number and surveillance camera connected to that monitor Monitor number storing relationship with connection channel (hereinafter referred to as camera channel)-camera channel table, camera channel storing camera channel and address of surveillance camera connected to the camera channel-camera address table, When a monitor camera address inquiry with a monitor number is received from the controller, the monitor that provides video to the monitor corresponding to the received monitor number from the camera channel-monitor number table and the camera channel-camera address table Means is provided for reading the address of the camera and transmitting it to the inquiring controller.
[0009]
A second surveillance camera system according to the present invention comprises a plurality of surveillance cameras, a plurality of monitors, a multiplexer for switching connection between the surveillance cameras and the monitor, and a plurality of controllers for remotely controlling the surveillance cameras via a communication control line. In the surveillance camera system that sends a command including the address of the surveillance camera to be controlled and the control content to the communication control line when each controller remotely controls the surveillance camera, each controller is provided for each controller. In controlling a surveillance camera that provides video to a predetermined monitor, the multiplexer includes means for inquiring the address of the surveillance camera that provides video to the monitor to the multiplexer. Memorize the relationship with the corresponding monitor number Controller address-Monitor number table, Monitor number storing the relationship between the monitor number and the connection channel of the surveillance camera connected to the monitor (hereinafter referred to as camera channel)-Camera channel table, camera channel and its camera channel The camera channel-camera address table storing the relationship with the address of the surveillance camera connected to the camera, and the controller address-monitor number table, camera channel-monitor number table when an inquiry about the surveillance camera address is received from the controller And from the camera channel-camera address table, the address of the monitoring camera that provides video to the monitor corresponding to the inquiring controller is read and transmitted to the inquiring controller. Characterized in that it comprises a means.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0011]
[1] Description of the first embodiment
FIG. 1 shows the configuration of the surveillance camera system.
[0013]
The surveillance camera system includes a plurality of surveillance cameras 1_1 to 1_m, a plurality of spot monitors 2_1 to 2_4, a multiplexer 3 that switches connection between the surveillance camera 1 and the monitor 2, and a plurality of controllers 4_1 to 4_4.
[0014]
Each of the controllers 4_1 to 4_4 is connected to the multiplexer 3 and each of the monitoring cameras 1_1 to 1_m by a communication control line 5 based on RS-485 (EIA 6485 standard).
[0015]
Individual addresses (ID) are assigned to the monitoring cameras 1_1 to 1_m, the multiplexer 3, and the controllers 4_1 to 4_4, respectively.
[0016]
A camera channel number is assigned to each camera connection terminal of the multiplexer 3. A monitor channel number is assigned to each monitor connection terminal of the multiplexer 3. The multiplexer 3 knows which monitor channel is connected to which monitor channel, and stores the relationship between the monitor channel (monitor number) and the camera channel connected to the monitor channel. Holding a table.
[0017]
The multiplexer 3 is assumed to hold a camera channel-camera address table that stores the relationship between each camera channel and the address of the monitoring camera connected to each camera channel.
[0018]
FIG. 2 shows a processing procedure when an arbitrary controller controls a surveillance camera that provides video to a predetermined spot monitor.
[0019]
Here, a processing procedure in the case of controlling a monitoring camera that provides video to the first spot monitor 2_1 from the first controller 4_1 will be described.
[0020]
First, the operator of the first controller 4_1 gives the monitor number of the spot monitor (in this example, the first spot monitor 2_1) on which the video of the monitoring camera to be controlled is displayed to the first controller 4_1. After inputting the monitor number, a camera address request button for acquiring the address of the monitoring camera to be controlled from the multiplexer 3 is pushed.
[0021]
When the camera address request button is pressed after the monitor number is input by the operator (step 1), the first controller 4_1 determines its own address as the transmission source and the address of the multiplexer 3 as the transmission destination. Then, a command including the monitor number and the camera address acquisition request is sent to the communication control line 5 (step 2).
[0022]
Upon receiving the command addressed to itself from the first controller 4_1, the multiplexer 3 first reads out the camera channel corresponding to the received monitor number from the monitor number-camera channel table. Next, the camera address corresponding to the camera channel read from the monitor number-camera channel table is read from the camera channel-camera address table. Then, a command including the obtained camera address and the address of the first controller that is the transmission destination is transmitted to the communication control line 5.
[0023]
When the first controller 4_1 receives the command addressed to itself from the multiplexer 3 (step 3), the first controller 4_1 displays a screen for inputting control contents for the surveillance camera to the operator (step 4).
[0024]
Based on this display, when the operator inputs the control content to the first controller 4_1 (step 5), the first controller 4_1 has its own address as the transmission source and the monitoring camera as the transmission destination. A command including the address (the address of the control target camera acquired from the multiplexer 3) and the control content input by the operator is sent to the communication control line 5 (step 6).
[0025]
When the surveillance camera having the transmission destination address in the command transmitted by the first controller 4_1 receives the command, the surveillance camera operates according to the control content included in the command. As a result, the surveillance camera that provides the video to the first spot monitor 2_1 is remotely controlled.
[0026]
[2] Description of Second Embodiment
The configuration of the surveillance camera system is the same as in FIG.
[0028]
In the second embodiment, for example, the controllers 4_1 to 4_4 and the spot monitors 2_1 to 2_4 have a one-to-one correspondence in advance, as in the case where the controller and the spot monitor are arranged in four rooms one by one. Is associated with.
[0029]
Accordingly, each of the controllers 4_1 to 4_4 determines in advance which of the spot monitors 2_1 to 2_4 controls the monitoring camera that provides the video. The multiplexer 3 holds a controller address-monitor number table storing the relationship between the controller address and the monitor number in addition to the monitor number-camera channel table and the camera channel-camera address table.
[0030]
FIG. 3 shows a processing procedure when an arbitrary controller controls a surveillance camera that provides video to a predetermined spot monitor.
[0031]
Here, a processing procedure in the case of controlling a monitoring camera that provides video to the first spot monitor 2_1 from the first controller 4_1 will be described.
[0032]
First, the operator of the first controller 4_1 presses a camera address request button for acquiring the address of the monitoring camera to be controlled from the multiplexer 3.
[0033]
When the camera address request button is pressed by the operator (step 11), the first controller 4_1 includes its own address as the transmission source, the address of the multiplexer 3 as the transmission destination, and a camera address acquisition request. A command is sent to the communication control line 5 (step 12).
[0034]
When the multiplexer 3 receives the command addressed to itself from the first controller 4_1, the multiplexer 3 first reads out the monitor number corresponding to the transmission source address included in the received command from the controller address-monitor number table. Next, the camera channel corresponding to the monitor number read from the controller address-monitor number table is read from the monitor number-camera channel table. Next, the camera address corresponding to the camera channel read from the monitor number-camera channel table is read from the camera channel-camera address table. Then, a command including the obtained camera address and the address of the first controller that is the transmission destination is transmitted to the communication control line 5.
[0035]
When the first controller 4_1 receives the above-mentioned command addressed to itself from the multiplexer 3 (step 13), the first controller 4_1 displays a screen for inputting control contents for the monitoring camera to the operator (step 14).
[0036]
Based on this display, when the operator inputs the control content to the first controller 4_1 (step 15), the first controller 4_1 has its own address as the transmission source and the monitoring camera as the transmission destination. A command including the address (the address of the control target camera acquired from the multiplexer 3) and the control content input by the operator is sent to the communication control line 5 (step 16).
[0037]
When the surveillance camera having the transmission destination address in the command transmitted by the first controller 4_1 receives the command, the surveillance camera operates according to the control content included in the command. As a result, the surveillance camera that provides the video to the first spot monitor 2_1 is remotely controlled.
[0038]
【The invention's effect】
According to the present invention, when remotely controlling a surveillance camera that provides video to a predetermined monitor, the operator need not confirm the address of the surveillance camera.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a configuration of a surveillance camera system.
FIG. 2 is a flowchart showing a processing procedure according to the first embodiment when an arbitrary controller controls a surveillance camera that provides video to a predetermined spot monitor.
FIG. 3 is a flowchart showing a processing procedure according to the second embodiment when an arbitrary controller controls a surveillance camera that provides video to a predetermined spot monitor.
[Explanation of symbols]
1_1 to 1_m surveillance cameras 2_1 to 2_4 spot monitor 3 multiplexer 4_1 to 4_4 controller 5 communication control line of RS-485

Claims (3)

A plurality of surveillance cameras, a plurality of monitors, a multiplexer for switching connection between the surveillance cameras and the monitor, and a plurality of controllers for remotely controlling the surveillance cameras via a communication control line. In the monitoring camera system that sends a command including the address and control content of the monitoring camera to be controlled to the communication control line when controlling,
Each controller, when controlling a monitoring camera that provides video to a predetermined monitor, sends means for sending the monitor number to the multiplexer and inquires the multiplexer about the address of the monitoring camera that provides video to the monitor. With
The multiplexer is connected to the monitor number-camera channel table, the camera channel and the camera channel in which the relationship between the monitor number and the connection channel (hereinafter referred to as camera channel) of the monitoring camera connected to the monitor is stored. When the camera channel-camera address table storing the relationship with the surveillance camera address and the inquiry of the surveillance camera address with the monitor number from the controller are received, the camera channel-monitor number table and the camera channel-camera address table are used. A monitoring camera system comprising means for reading an address of a monitoring camera that provides video to a monitor corresponding to the received monitor number and transmitting the address to the inquiring controller. A plurality of surveillance cameras, a plurality of monitors, a multiplexer for switching connection between the surveillance cameras and the monitor, and a plurality of controllers for remotely controlling the surveillance cameras via a communication control line. In the monitoring camera system that sends a command including the address and control content of the monitoring camera to be controlled to the communication control line when controlling,
Each controller includes means for inquiring of the multiplexer the address of the monitoring camera that provides video to the monitor when controlling the monitoring camera that provides video to a predetermined monitor for each controller.
The multiplexer is a controller address-monitor number table that stores the relationship between the address of each controller and the corresponding monitor number, the monitor number and the connection channel of the monitoring camera connected to the monitor (hereinafter referred to as the camera channel). The monitor number that stores the relationship between the camera channel and the camera channel table, the camera channel that stores the relationship between the camera channel and the address of the surveillance camera connected to the camera channel, the camera address table, and the inquiry of the surveillance camera address from the controller When received, the controller address-monitor number table, camera channel-monitor number table, and camera channel-camera address table are displayed on the monitor corresponding to the inquiring controller. It reads the address of the monitoring camera providing surveillance cameras system comprising means for transmitting the inquiry source controller. The surveillance camera system according to claim 1, wherein the communication control line is a communication control line based on RS-485.

Images