JPH07200970A - Guard system - Google Patents

Abstract

PURPOSE:To output a guard switching-over signal from each guard switching- over device of guard devices installed at plural areas by using a common communication line without providing a repeater between a controller to perform the transmission/reception of data with a monitoring device and each switching- over device. CONSTITUTION:Plural guard switching-over devices 1, 2, and 3 are connected to the controller 4 via the common communication line 10, and the guard switching-over devices and the controller detect whether or not the communication line is being used when a signal is sent out, and perform the transmission by discriminating the fact that the line can be used. Also, a display device is provided at the guard switching device 3 installed in the neighborhood of a final exit, and the operating state of another guard switching-over device is displayed on it when a guard switching-over operation is performed at the final exit.

Description

Detailed Description of the Invention

[0001]

[Industrial field of use] Security is provided by a monitoring device installed in a security company's monitoring center based on detection signals from a detection device that is installed in the security area and detects information in the security area such as fire, intrusion, and air conditioning equipment. It relates to a security system that monitors abnormalities in the area.

[0002]

2. Description of the Related Art Based on a detection signal from a detection device which is installed in a security area and detects information on the security area such as fire, intrusion, air-conditioning equipment, etc. A conventional security system for monitoring abnormality will be described with reference to the block diagrams shown in FIGS. 3 and 4.

In FIG. 3, the security switching signal from the key box 101, which is installed at the final exit of the security area and sets the start and end of security in all security areas, is for the security switching device of the control device 40. Is input to the control unit 402 via the interface 403, and is transmitted from the control unit 402 to the monitoring device installed in the monitoring center 6 of the security company via the transmission / reception unit 401. The monitoring center 6 that has received the security switching signal confirms the security status of the monitored area. Further, a detection signal from a detection device 50 which is installed in the security area and detects information on the security area such as fire, intrusion, air-conditioning, etc., is transmitted to the control unit 40 via the interface 404 for the detection device.
2 is input to the monitoring center 6 via the transmission / reception unit 401. The monitoring center 6 responds to each detection signal according to the detection signal and the security status of the security area.

However, in such a security system, when there are a plurality of stores or offices in one building such as a tenant building, the exit time differs depending on the store or office. Only one security switching device is installed at the final exit, and the security switching of the entire building is performed by one security switching device. This means that until the final person exits the building, the security switching operation is performed. Other stores and offices that have no personnel will be in a state of no vigilance. In order to solve this problem, conventionally, a security system as shown in FIGS. 4 and 5 has been devised.

In FIG. 4, the security switching signals from the security switching devices 110, 111 and 112, which are installed at the exits of the security areas and set the start and end of security in the respective security areas, are the security switching signals. It is input to the repeaters 120, 121, 122 corresponding to the switching device, and the control device 400
Sent to. This signal is input to the control unit 442 via the interface 443 for the security switching device, transmitted from the control unit 442 to the monitoring center 6 of the security company via the telephone line via the transmitting / receiving unit 441, and then to the monitoring center 6. Confirm that the security status of the security area has been switched. Further, the detection signal from the detection device 500 which is installed in the security area and detects information on the security area such as fire, intrusion, and air conditioning is
Control unit 4 via interface 444 for the detector
42 is input to the monitoring center 6 via the transmission / reception unit 441.
Send to. The monitoring center 6 responds to each detection signal according to the detection signal and the security status of the security area.

However, if a security switching device is installed in each store or office in order to eliminate an unguarded area, a relay device for relaying an operation signal from the security switching device is required for each security switching device. The more security switching devices are used, the greater the cost burden becomes, and the location of the repeater is required. Therefore, there is a problem that the installation work becomes large even when newly installed.

Further, when the last person leaving the building performs a security start operation at the last exit, the operation states of a plurality of other security device switching devices cannot be confirmed.

In FIG. 5, the security switching signal from the security switching device A, which is installed at the final exit of the security area and sets the start and end of security in all security areas, is the control device 40.
Sent to. This signal is input to the control unit 402 via the security switching device interface 403, transmitted from the control unit 402 to the monitoring center 6 of the security company via the telephone line via the transmission / reception unit 401, and the monitoring center 6 Confirm that the security status of the security area has been switched. Detection signals from detection devices A and B, which are installed in the security area and detect information on the security area such as fire, intrusion, and air conditioning, are controlled by the control unit 402 via an interface 404 for the detection device.
Is input to the monitoring center 6 via the transmission / reception unit 401. The monitoring center 6 responds to each detection signal according to the detection signal and the security status of the security area. In addition, when there is a security area that is partially used in one building, a security switching device B that switches the start or end of security of a preset security area is used as a detection device B that detects information about the security area. It is provided between the control devices 40. When the security end operation is performed by the security switching device B, the detection signal from the detection device B is not transmitted to the control device 40, and when the security start operation is performed, the detection signal is transmitted to the control device 40. .

As shown in FIG. 5, when the security switching device B performs a security end operation, the detection signal from the detection device B is not transmitted to the control device 40. However, the fact that the security ending operation has been performed by the security switching device B is not transmitted to the monitoring device 61, so the monitoring device cannot confirm that the area is being unsecured. Further, when the security switching device B is left without performing the security start operation, there is a problem that the area in which the detection device B is installed is in a non-warning state.

[0010]

SUMMARY OF THE INVENTION The present application has been made in view of the above problems, and receives security switching signals from a plurality of security switching devices by a control device via a common communication line without providing a repeater. When possible, when the security switching device performs security switching operation, the control device starts or ends the security of the security area corresponding to the preset security switching device, and at the final exit. Another object of the present invention is to obtain a security system whose purpose is to enable confirmation of the operating state of another security switching device.

[0011]

In order to solve the above problems, a security system according to the present invention is provided near a doorway of a security area, and sends a security switching signal by a switching operation for starting or ending security in the security area. Security switching device and a detection device that is provided in the security area and detects information in the security area such as fire, intrusion, air conditioning, and the signal received from the security switching device and the detection device is transmitted to the monitoring center of the security company. When a control signal is received from the monitoring center, it is installed in the control device that outputs the control signal to various devices and the monitoring center of the security company, and receives the security switching signal and the detection signal from the control device to monitor the security area. In a security system consisting of a monitoring device for performing a plurality of security switching device is connected to the control device via a common communication line, the security switching device and the control device, When sending, the communication line is detected whether or not in use, to transmit a signal unless in use,
If it is in use, it waits until the line becomes available and sends a signal when it becomes available. In addition, when the surveillance area is divided into a plurality of, if a plurality of security switching device is installed, the security switching device installed near the final exit of the security area is provided with a display device,
When a security start operation is performed at the final exit, the operating states of other security switching devices are displayed on the display device.

[0012]

According to the security system of the present invention, the security switching signals from the security switching devices installed in a plurality of security zones can be transmitted.
Transmission and reception are performed using a common communication line between a control device that transmits and receives various data between the security switching device and the monitoring device and each security switching device. In addition, the security switching device,
When transmitting the security switching signal, it is determined whether or not the communication line is in use. In addition, when a security switching device with a display device provided at the final exit of the facility is used to perform a security switching operation, the security switching device with a display indicates that the switching operation has been completed, and other security switching devices are displayed. The operation status of is displayed.

[0013]

EXAMPLE Next, an example of the security system of the present application will be described with reference to the block diagram of FIG. 1 and the installation example of FIG.

FIG. 2 shows a store a7 and a store b8 in one building.
In the security system that protects the three areas of the common area 9,
An example is shown in which the security of the store a7 and the common part 9 is switched using a key, and the security of the store b8 is switched using an ID card. As a security switching device for switching the security status, a key box 1 for performing a security switching operation with a key is installed near the entrance of the store a7 and the common part 9 and stores b
A card reader 2 for switching the security with an ID card is installed in the vicinity of the entrance and exit of 8 and the common part 9.
A key box 3 with a liquid crystal display is installed near the entrance between the common area 9 and the outside of the security area to indicate that the operation has been completed when the security switching operation is performed and the operation status of other security switching devices. . Further, in the security area near the entrance between the common area 9 and the outside of the security area, a security switching signal from the key box 1, the card reader 2 and the key box 3 with a liquid crystal display, and a detection signal from the detection device 5 are provided. A control device 4 is installed which transmits to the monitoring center 6 of the security company via the communication line 10 and at the same time transmits the control signal transmitted from the monitoring center 6 and controlling the security switching device and the detection device 5 to each device. It

The security switching device including the key box 1 and the card reader 2 has a switch function for switching the security start or the security end with a key or an ID card, and also supports the switching operation. A switching signal holding function for holding a switching signal for security start or security end, a signal sending function for sending the switching signal, an address assigning function for assigning an address number for each security switching device, and monitoring of communication line usage status It also has a signal monitoring function to operate, and incorporates a data storage unit and an arithmetic processing unit (CPU) in addition to the switch. Further, the control unit 42 of the control device 4 also performs control for transmitting a signal from the monitoring device to the security switching device side.

Therefore, when a security switching operation is performed by the security switching device, the security switching device generates a switching signal corresponding to the switching operation and holds the switching signal in the storage unit to check the usage status of the communication line 10. . If the line is busy,
It is controlled so that it waits until it becomes available and sends a signal when it becomes available. An address number is given to the transmitted signal so that the surveillance center can recognize from which security switching device the signal is transmitted.

First, the case of ending the security will be described. When the clerk of the store a7 comes to work earlier than the related persons who enter the security area, all security areas are in the security state, so the security key is used to end the security operation. . Then, the security end signal is input to the control device 4 from the key box 3 with a liquid crystal display, the security of the common unit 9 is ended, and the security end signal is transmitted to the monitoring device 61 of the monitoring center 6 via the transmitting / receiving unit 41. It is confirmed at the monitoring center 6 that the security of the common unit 9 has been completed.
At the same time, it is displayed on the liquid crystal display that the security ending operation of the common unit 9 is completed. Next, in the key box 1, store a7
Perform the security end operation. Then, the security end signal is input from the key box 1 to the control device 4 to end the security of the store a7 and transmitted to the monitoring device 61 of the monitoring center 6 via the transmitting / receiving unit 41, and the monitoring center 6 stores the store a7. Make sure that security has been terminated.

Further, when the clerk of the store a8 comes to work earliest, the guard end operation may be performed by the card reader 2 after the guard of the common part 9 is terminated.

Next, the case of starting security will be described. When the clerk at the store a7 leaves the building later than the clerk at the store b8, the clerk at the store b8 performs a security start operation with the card reader 2 when leaving. Then, a security start signal is input from the card reader 2 to the control device 4 to start the security of the store b8, and the security start signal is transmitted to the monitoring device 61 of the monitoring center 6 via the transmitting / receiving unit 41, and the monitoring center 6 is sent. It is confirmed that the security of the store b8 has started. The clerk of the store b8 leaves the building through the common area 9 as it is. afterwards,
When the store clerk at the store a7 exits the store a7, the key box 1 performs a security start operation for the store a7. Then, the security start signal is input to the control device 4 from the key box 1 to start the security of the store a7, and the security start signal is transmitted to the monitoring device 61 of the monitoring center 6 via the transmitting / receiving unit 41,
It is confirmed that the monitoring center 6 has started to protect the store a7. The clerk of the store a7 leaves the building through the common area 9,
Security operation of the common area 9 is performed using the key box 3 with a liquid crystal display installed outside the security area. Then, a security start signal is input to the control unit 4 from the key box 3 with a liquid crystal display, the security of the common unit 9 is started, and the security start signal is transmitted to the monitoring device 6 of the monitoring center 6 via the transmitting / receiving unit 41. ,
It is confirmed at the monitoring center 6 that the security of the common unit 9 has started. Further, when a security start signal is issued by the key box 3 with a liquid crystal display, a signal regarding the security state of the store a7 and the store b8 from the control unit 9 and an end signal of the security start operation of the common unit 9 are sent to the key box with a liquid crystal display 3. Sent to
Displayed on the liquid crystal display. This display confirms the security states of the stores a7 and a8, and also confirms that the security start operation of the common unit 9 has been reliably performed.

[0020]

As described above, the security system of the present application transmits / receives security switching signals from a plurality of security switching devices using a common communication line, and transmits the security switching signals to the control device as data. Therefore, it is not necessary to install a repeater, and even when installing a new security switching device, it is only necessary to connect the signal input from the security switching device to a common communication line. Since there is no need to install a repeater, the construction can be simplified, and the installation place need only be for the monitoring device.
It does not take up any space for installation. In addition, the security switching device provided near the final exit is equipped with a display device, and the security switching device provided at the final exit ensures that the security start or end operation has been performed and that other security Since the operation status of the switching device is displayed, the operator of the security switching device installed at the final exit can confirm the end of his / her own operation and the operating status of other security switching devices. .

Since the security switching signals from all the security switching devices are sent to the monitoring center, it is possible to confirm on the monitoring device side that the security has been partially released, and it is possible to monitor whether the security has been left without starting the security. It can be confirmed on the device side.

[Brief description of drawings]

FIG. 1 is a block diagram of a security system according to the present invention.

FIG. 2 is a diagram showing an installation example of devices of a security system according to the present invention.

FIG. 3 is a block diagram of a conventional security system.

FIG. 4 is a block diagram of a conventional security system.

FIG. 5 is a block diagram of a conventional security system.

[Explanation of symbols]

 1 Key Box 2 Card Reader 3 Key Box with Liquid Crystal Display Function 4 Control Device 7, 8 Store 9 Shared Area 10 Communication Line 41 Detection Device Interface 42 Control Unit 43 Security Switching Device Interface 44 Transmitter / Receiver Unit 5 Detection Device 6 Monitoring Center 61 Monitoring device

Claims (2)

[Claims] 1. A security switching device installed near a doorway of a security area for performing switching operations for starting and ending security, a detection device for detecting the status of the security area such as fire, intrusion, and air conditioning, and a security company. A monitoring device installed in the monitoring center that monitors the state of the guarded area by signals from the security switching device and detection device, and receives signals from the security switching device and detection device and sends them to the monitoring device via the transmission / reception unit. In a security system provided with a control device for transmitting a control signal from a monitoring device to a detection device or a security switching device, a plurality of security switching devices are connected to the control device through a common communication line, and the security switching device and the security switching device are connected to each other. When sending a signal, the control device detects whether the communication line is in use, sends a signal if it is not in use, and if it is in use and unavailable, the line is in an available state. become It is characterized in that a security switching signal from a plurality of security switching devices is transmitted to a monitoring device by using a common communication line by waiting at the station and transmitting a signal when it becomes available. Security system. 2. When a switching operation for starting or ending the security is performed by the security switching device, a detection device that sets the security state by the operated security switching device is preset and the security switching device performs the switching operation. The security switching device with a display device starts or ends when the security switching device with a display device provided at the final exit is used to start or end the security of the security area. The security system according to claim 1, wherein when the security start operation is performed, the operation state of the other security switching device is displayed while the end of the operation of (1) is displayed.