JPH08180285A - Guard terminal equipment - Google Patents

Abstract

PURPOSE: To transmit the state of occurrence to a monitor center faithfully in a certain degree without considerably increasing the number of storage elements nor extending the line holding time, in the case of the occurrence of many signals to be transmitted because of a fire, trespass, or the like in a guard terminal equipment using telephone line. CONSTITUTION: A control part 11 successively stores signals detected by sensor detection parts K1 to Kn in a storage part 12; and if the storage part 12 is full and a new signal occurs, an overflow signal (f) is stored in an overflow storage part 13, and the new signal is abandoned to hold the oldest signals by the storage capacity of the storage part 12 or abandons the oldest signal out of signals stored in the storage part 12 to hold the latest signals including the new signal by the storage capacity of the storage part 12, and a transmission part 14 is connected to the monitor center by a network control part 15 to successively transmit the signals stored in the storage part 12 and the overflow signal stored in the overflow storage part 13 to the monitor center.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security terminal device for transmitting an abnormality signal to a monitoring center via a telephone line when an abnormality such as a fire or an intrusion is detected.

[0002]

2. Description of the Related Art A security terminal device of this type stores a signal to be transmitted to a monitoring center for fire, intrusion, etc. in a storage unit,
It is transmitted to the monitoring center through a telephone line (see, for example, JP-A-60-86698 and JP-A-60-108999). In this case, when a large number of signals to be transmitted are generated, a huge storage element is required to transmit all the signals, and the line holding time becomes long and the telephone charge becomes high. It becomes impossible to receive a signal from the security terminal device. Therefore, conventionally, the number of storage elements and the line hold time are reduced by transmitting the signal having the highest priority among the generated signals or by transmitting only once even if a large number of the same signals are generated. I was trying.

[0003]

In the above-mentioned conventional security terminal device, in the method of transmitting only the signal with the highest priority, it is not possible to know what other signals are generated,
In addition, when the same signal is generated a number of times and the system transmits the signal only once, there is a problem in that the signal generation status on the side of the security terminal device cannot be known in detail on the monitoring center side.

The present invention has been made in view of the above points, and an object thereof is to make it possible to transmit more detailed information to a management center without increasing the scale of the storage means or the line retention time. .

[0005]

In order to solve the above-mentioned problems, the invention of claim 1 is provided with a means for generating an overflow signal when the storage means for storing the signal to be transmitted to the monitoring center becomes full. The signal is transmitted to the surveillance center together with the data stored in the storage means.

In the second aspect of the present invention, when an overflow signal is generated, the old signal stored in the storage means is discarded, the signal to be newly transmitted to the monitoring center is stored in the storage means, and the newly generated signal is generated. The signal is sent to the monitoring center together with the overflow signal.

[0007]

When the data in the storage means becomes full, the data in the storage unit is sent to the monitoring center together with the overflow signal. As a result, the occurrence status can be transmitted to the monitoring center with a certain degree of fidelity without significantly increasing the storage element and line holding time.

[0008]

The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of an embodiment of the present invention. FIG.
In, the sensor detection units K _{1 to} K _n constantly monitor the operation of various sensors (not shown) that detect fire, intrusion, and the like, and send signals to the control unit 11. When the controller 11 detects the signals from the sensor detectors K _{1 to} K _n, it sends a signal a to the transmitter 14.
Is transmitted, the transmission data b is transmitted to the storage unit 12, and the FULL signal d (a signal output when the storage unit 12 is full) is received from the storage unit 12, the transmission data b is transmitted to the storage unit 12. b is not transmitted, and the overflow signal f indicating that the storage unit 1 is full is sent to the overflow storage unit 13
Send to. The control unit 11 includes, for example, a CPU and a memory, and operates based on a preset program.

The storage unit 12 sequentially stores the transmission data b from the control unit 11, and transmits the stored transmission data c to the transmission unit 14 according to the signal e from the transmission unit 14. In addition, when the transmission data b becomes full of storage capacity, the storage unit 12
The FULL signal d is transmitted to the control unit 11. The overflow storage unit 13 stores the overflow signal f from the control unit 11, and transmits the stored overflow signal g to the transmission unit 14 according to the signal h from the transmission unit 14. Also,
The overflow storage unit 13 discards the overflow signal f and stores only one signal even if the overflow signal f is received again from the control unit 11 while the overflow signal f is being stored.

The transmission unit 14 activates the network control unit 15 by the signal a from the control unit 11, confirms that the network control unit 15 is connected to the monitoring center (not shown), and then stores it in the storage unit 12. The stored transmission data and the overflow signal stored in the overflow storage unit 13 are sequentially transmitted to the monitoring center. The network controller 15 includes a transmitter 14
In accordance with a signal from, network control such as opening / closing of the telephone line 16 and sending of a dial is performed.

Next, the operation of the above embodiment will be described with reference to the flowchart of FIG. First, look at whether the sensor detection portion K ₁ ~K _n there is an input error signal (201), stores the data in the storage unit 12 if there is input, the data is checked whether the overflow (202). If the overflow does not occur, the transmission data is continuously stored in the storage unit 12 (203). If the overflow occurs, the overflow signal f is stored in the overflow storage unit 13 (20).
4) The subsequent data storage is not performed.

Next, it is checked whether there is transmission data (205) or whether there is an overflow signal (206), and if there is, check whether the line is connected to the monitoring center (207). For example, the network control is activated (208). If the line is connected, the transmission data is sent (209) and transmitted until there is no transmission data (210). After that, it is checked if there is an overflow signal (211), if there is, it is transmitted (212), the line with the monitoring center is disconnected (213), and the processing is ended.

Next, a second embodiment of the present invention will be described. The configuration of the second embodiment is the same as that of FIG. 1, but the operation is as follows.

The sensor detectors K _{1 to} K _n constantly monitor the operation of various sensors for detecting fire, intrusion, etc., and send signals to the controller 11. The controller 11 controls the sensor detectors K _{1 to} K _n.
When the signal from is detected, the signal a is transmitted to the transmitter 14,
The transmission data b is transmitted to the storage unit 12.

The storage unit 12 transmits the FULL signal d to the control unit 11 when the storage capacity of the transmission data b is full. Even in that case, the control unit 11 continues to transmit the transmission data b to the storage unit 12. , Overflow signal f
To the overflow storage unit 13. The storage unit 12 sequentially stores the transmission data b from the control unit 11,
According to the signal e from 4, the stored transmission data c is transmitted to the transmission unit 14.

When receiving the transmission data b from the control unit 11 when the storage capacity is full, the storage unit 12 discards the oldest transmission data and stores the newly received transmission data.
The overflow storage unit 13 stores the overflow signal f from the control unit 11, and according to the signal h of the transmission unit 14,
The stored overflow signal g is transmitted to the transmitter 14. Further, similarly to the first embodiment, the overflow storage unit 13 discards the overflow signal f received from the control unit 11 during storage of the overflow signal and discards only one signal.

The transmission unit 14 activates the network control unit 15 by the signal a from the control unit 11, confirms that the network control unit 15 is connected to the monitoring center, and then transmits the data stored in the storage unit 12. Data and overflow storage unit 1
The overflow signals stored in No. 3 are sequentially transmitted to the monitoring center. The network control unit 15 performs network control such as opening / closing of a telephone line and transmission of a dial according to a signal from the transmission unit 14.

The operation of the second embodiment will be described with reference to the flow chart of FIG. 3. First, it is checked whether or not an abnormal signal is input to the sensor detection units K _{1 to} K _n (301). The data is stored in and the data is checked to see if it overflows (202). Unless overflow occurs, the transmission data is continuously stored in the storage unit 12 (20
3) If overflow occurs, old data is discarded and new data is stored (303B). Next, the overflow signal f is stored in the overflow storage unit 13 (304).

Steps 305 to 313 are the same as steps 205 to 213 in the flow chart (first embodiment) of FIG.

In the above two embodiments, since the overflow signal is sent together with the send data, it can be seen that the data to be sent other than the sent data is generated at the monitoring center. Can make decisions.

In the first embodiment, the data generated in the initial stage among the abnormal signals is sent as the transmission data. Further, in the second embodiment, the latest data of the abnormal signal is sent. Whether to send the initial data or the latest data to the monitoring center may be determined according to the type of the abnormal signal, the security policy, and the like.

[0022]

INDUSTRIAL APPLICABILITY As described above, the present invention is
When a large number of signals to be transmitted to the surveillance center such as intrusion exceed the storage capacity, by sending an overflow signal together with the stored signal, the situation detected by the security terminal device is faithfully transmitted to the surveillance center to some extent,
It is possible to notify that a signal is generated more than the transmitted signal, and it is possible to reduce the number of storage elements and the line hold time.

[Brief description of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention.

FIG. 2 is a flowchart illustrating the operation of the first exemplary embodiment of the present invention.

FIG. 3 is a flowchart illustrating the operation of the second exemplary embodiment of the present invention.

[Explanation of symbols]

1 security terminal apparatus 11 control unit 12 storage unit 13 overflow storage unit 14 transmission unit 15 network controller K ₁ ~K _n sensor detector

Claims (2)

[Claims] 1. A security terminal device that transmits an abnormality signal to a monitoring center via a telephone line when an abnormality such as a fire or an intrusion is detected. A storage unit for storing a signal; a unit for generating an overflow signal when the storage unit is full; and a unit for transmitting the overflow signal and the signal stored in the storage unit to the monitoring center. A characteristic security terminal device. 2. The security terminal device according to claim 1, wherein when the overflow signal is generated, the old signal stored in the storage means is discarded and the newly generated signal is stored in the storage means.