JPH11283160A - Detour reporting system in case of telephone line disconnection - Google Patents

Abstract

PROBLEM TO BE SOLVED: To constitute the disaster prevention and crime prevention system of high safety and to provide this system at low cost by using a radio system for automatic meter-reading for radio equipment. SOLUTION: When a security device 27 detects any abnormality and a telephone set 26a for reporting such a state is disconnected by the disconnection of a telephone line 22a or the like at the same time, an abnormality occurrence signal is sent to a radio unit 6 of a gas meter 25a consisting of an automatic meter-reading system. The radio unit 6, which receives that signal, transmits it to the same radio unit of a gas meter 5 at the next house B by radio. When that signal is received, at the next house B, it is reported from a telephone set 26b through a telephone line 22b to a disaster prevention and crime prevention center 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for detecting when a telephone line used for notification of a security system becomes disconnected due to a disconnection or the like, on the telephone side, or in the event of a telephone line failure or any malfunction. The present invention relates to a system for detecting a state in which communication of a telephone line cannot be secured by using the wireless communication device and notifying via a wireless device and a telephone of a neighbor.

[0002]

There is already a security system as a security system for homes and offices.
This system can be used to automatically dispatch a patrol car from a security company or to have a security guard stationed at night when an abnormal situation occurs in a home or office contracted with a security company, or when an abnormal situation occurs. This is a system that automatically reports to the police in response. This system is also called mechanical security, and when the sensor detects various abnormalities such as the function of checking the door lock, the function of detecting intruders, the detection of abnormalities such as inundation, and the operation of sensors on the intrusion path to important items. The security company is automatically notified and dispatch of a patrol car is made.

As a communication means for notifying an abnormality in the security system, a dedicated communication line can be provided if the target facility is large. For example, use of a wireless line such as a teleterminal, use of a PHS, and the like are sufficiently possible in terms of economy. However, in the case of general households and the like, the above-mentioned wireless dedicated line costs about 2,000 yen per month, and therefore cannot be used unless the system is highly economical. For this reason, a security system for homes usually notifies the center of the security company of the abnormality via a telephone line in the home when the abnormality is found.

[0004] However, when a criminal acts with a specific purpose on a telephone line, there is a high possibility that the telephone line will be disconnected as a means for preventing the operation and reporting of the security system. As a countermeasure against an intruder who disconnects the telephone line, it is effective to install a device that emits a loud sound and notify the surroundings when an abnormality is detected, but the device malfunctions and the abnormal However, this method is not always welcomed because there is a possibility that a loud sound may be generated and disturb the surroundings. On the other hand, there is a concept that a family with a security contract may post a security contract at a gate or the like to psychologically enhance the effect of crime prevention, thereby suppressing trespassing.

[0005] In addition, since the security contract itself has a kind of status symbol element, the existence of the contract itself can be understood from the outside as a strategy of the security company. Due to such a background, when a criminal or the like intentionally acts, there is a high possibility that the telephone line will be disconnected. In that case, there is a problem that it is impossible to report to the security company through the telephone line. Therefore, an object of the present invention is to secure a detour communication path in a security system that detects when a telephone line is disconnected and notifies the security company, and the detour communication path is Must be economically viable. In addition, it is necessary to secure a detour communication path even when communication to the security company cannot be performed due to a failure of the telephone line or a problem in use.

[0006]

In order to solve the above-mentioned problems, a first aspect of the present invention is to install a crime prevention / disaster prevention sensor in a house or the like to which a security contract has been made, and to set a telephone line when the sensor operates. Is installed on the house side of the security system that reports the occurrence of an abnormality to the security company center via, and means for detecting the disconnection of the telephone line, and installed in the contract house, etc., the crime prevention / disaster prevention sensor detects the abnormality In addition, a wireless transmitter that transmits an abnormality occurrence signal when a disconnection of a telephone line is detected, and a wireless receiver installed in a neighbor house such as a contract house,
Means for notifying the security company center from the telephone of the neighbor via a telephone line when the wireless receiver of the neighbor receives the abnormality occurrence signal.

According to a second aspect of the present invention, in the first aspect of the present invention, there is provided a means for generating an abnormality occurrence signal containing the content of the telephone disconnection and transmitting the signal from the wireless transmitter when only the disconnection of the telephone line is detected. It is characterized by having.

According to a third aspect of the present invention, in the first or second aspect of the invention, a meter reading device installed in each home is connected to a terminal as a wireless transmitter and a wireless receiver by wireless communication means. Is connected to a center device via a network, thereby using a wireless device of a wireless meter reading system that collects meter readings of meters at homes in the center device.

That is, according to the present invention, when a telephone line is disconnected due to disconnection or the like, and it is necessary to notify a security company for security, a notification is sent to a neighbor via a radio device, By notifying the security company, a notification function when the telephone line is disconnected is secured. In addition, it is inexpensively configured by using a wireless system for automatic meter reading for wireless communication with a neighbor.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As described above, the security system to which the present invention is applied has a well-known configuration, and thus a detailed description is omitted. First, the configuration of a wireless meter reading system, which is one example of a system used for a detour of a communication line in the present invention, will be described.

FIG. 1 is a diagram showing an example of the configuration of an automatic meter reading system of a gas meter used in a wireless device according to an embodiment of the present invention. In addition to the above, various communication methods can be used. Here, a case where an automatic meter reading system of a gas meter is used will be described as a typical example. A wireless terminal 4 is connected to a management computer 1 for meter reading via a communication network 2 and a regional communication network 3. The wireless terminal 4 is connected to the gas meter 5 by wireless communication means. In the example shown,
A portion where the wireless terminal 4 and the gas meter 5 are coupled 1: 1 and a portion where the wireless terminal 4 and the gas meter 5 are coupled 1: n are mixed.

Generally, in many cases, a telephone line system is used for the communication network 2. In addition to telephone lines, there is a business wireless system using radio,
For example, a teleterminal system is used. In addition to gas meters, automatic meter reading systems using telephones, electric power, and the like have been put into practical use, and each system can be used as such a communication system.

[0013] PHS,
Since there is also a wireless telephone such as a mobile telephone, if such a communication system is used, information can be transmitted wirelessly, so that a system can be constructed at low cost. However, since the functions of the PHS and the mobile phone generally have various functions, there is a problem that the configuration cost tends to be higher than that of a wireless communication system that only performs automatic meter reading.

Here, the function of the automatic gas reading system will be described as an example. FIG. 2 shows the configuration, in which the pair of wireless terminals 4 and gas meter 5 of FIG. 1 are taken out and shown. Reference numeral 7 in the figure denotes a communication line connecting the wireless terminal 4 and the local communication network 3, and various means can be used. For example, when a telephone line is used, the wireless terminal 4 includes a T-NCU and a wireless device. In the radio usage category in Japan, specific low-power radio is used and 400M
The use of the specific low-power wireless technology in the Hz band is advantageous in operation because a wireless technician is not required to use the wireless device.

The wireless terminal 4 can deliver a radio wave within a communication area of about 100 m in general. That is, communication within 100 m can be performed between the wireless terminal 4 and the wireless unit 6 provided in the gas meter 5. Also,
The gas meter 5 can also communicate with a wireless device provided in a range of about 100 m around. In FIG. 2, a range in which communication is possible from the gas meter 5 is expressed as a communication area. The relationship between the wireless terminal 4 and the gas meter 5 is 1: 1 or 1:
n communication systems, each of which can communicate within a range of about 100 m from each meter.

In this embodiment, the above-described wireless communication technology for automatic meter reading is used as a bypass communication path for security protection. FIG. 3 is a diagram illustrating a configuration example of a detour communication path for security protection. As shown in the figure, the security / disaster prevention center 21 of the security company is connected to the user's home, office, factory, etc. through various communication paths, and upon receiving a report from the user, for example, according to the content, Arrange for contacting police and fire departments and dispatching patrol cars. Communication with these users is coupled through network 20.

Here, a telephone network is used for the network 20, and the network 20 and each user are connected by communication lines 22a and 22b. Communication line 22
a and 22b are telephone lines from a telephone office.
At the user-side entrances of the communication lines 22a and 22b,
Protectors 23a and 23b are installed to prevent entry of excessive abnormal voltage such as lightning. In front of the protectors 23a and 23b, telephones 26a and 26b and gas meters 25a and 25b are provided.
b, or NCU for connecting the security device 27
24a and 24b are provided.

Since the functions of the NCUs 24a and 24b are already general, their description will be omitted. The function of the security security device 27 is the security system of the security security company described above, and has the contents contracted for each user. The illustrated example shows a case where the house A has a security contract. House B shows the case where the contract has not been made, but it is free to make a contract and install the security device in the same manner as House A. As mentioned earlier, security device 2
Although 7 has various functions, the result of the operation is notified to the security center 21 as information.

FIG. 4 shows the gas meters 25a and 25b of FIG.
FIG. 4 is a block diagram showing a configuration of a part, and an operation of a detour will be described below. Here, it is assumed that the telephone line is interrupted due to disconnection of the communication line 22a in FIG. 3 when an attempt is made to notify the crime prevention and disaster prevention center 21 because an abnormality is detected by the security security device 27. As shown in FIG. 4, information on the occurrence of an abnormality in the security device 27 is transmitted to the wireless unit 6 connected to the gas meter 5 by serial communication. The information is read by the microcomputer system 30 in the wireless unit 6, the information is added to the content as detour communication information, and the information is wirelessly transmitted to the wireless unit 6 of the gas meter 25 b of the neighboring house B through the wireless module 31 and the antenna 32. Sent.

Since this technology is realized by using a specific low-power radio technology, the technical problem is how to transmit data and how to transmit the data, and since their contents are general design items, Designed for individual systems.
The system information for crime prevention and disaster prevention received at the house B is transmitted to the management computer 1 via the system of FIG. Information is transferred from the management computer 1 to the disaster prevention and security center 21 in FIG. 3, and an activity is started as a security system. Here, it is not always necessary to interpose the management computer 1 of FIG.

That is, if the telephone number of the security company is registered as the transfer destination in the microcomputer system 30 in the wireless unit 6 of the gas meter 25b of the neighbor B which is designated as the detour communication path, the transfer is automatically performed. The function is activated and transmitted directly to the security company via a telephone line. Which method is used to notify the security company depends on the economics of the system used. In addition, it is naturally conceivable to provide a dedicated wireless device for communication without using the wireless unit of the automatic meter reading system, but in that case, it is necessary to make a dedicated wireless device system, so the cost of configuring the system is low. As a result, investment for securing a detour communication path for emergencies is less feasible.

Therefore, if the radio of the automatic meter reading system is used as described above, the radio can be used at a low cost since the radio is already installed. In addition, when the wireless system for automatic meter reading is used for a purpose other than the original meter reading, it also leads to effective use of social resources. Note that the voltage of the telephone line may decrease due to a failure of the telephone station or the like. For this reason, it may not be possible to determine that the line has been disconnected simply due to the voltage drop of the telephone line.

Therefore, on the condition that the abnormality of the line voltage is detected and the security system such as disaster prevention and crime prevention detects the abnormality, the detour should be activated to transmit the abnormality report. In addition, even when the telephone line is not connected to the security company for a long time due to not only the abnormality of the line but also the call situation, it is possible to perform communication using a detour in the same manner. In addition, even in the case of only a disconnection of the telephone line, it is also possible to make a setting so as to notify the user of abnormal information including details of telephone disconnection via a detour, as a kind of abnormality. Depends on security company contract.

Further, in actual operation of the system, it is realistic that the operator of the automatic meter reading system and the security company make a contract and mutually determine a method of utilizing the system and operate the system. In addition, since the neighbor is requested to use a telephone line, it is preferable to consider a payment of some consideration and to use a free-dial number as the transfer destination.
Further, when the neighbors have a security contract with a security security company in the same manner, it is possible to adopt a configuration in which the neighbors use each other as a detour.

[0025]

As described above, according to the present invention, in a disaster prevention and crime prevention system, when an abnormality is detected and the telephone line becomes unusable due to disconnection or the like, the information is transmitted to a neighbor through a wireless device. By providing a detour, it is possible to automatically notify the security company, so that a highly safe disaster prevention and crime prevention system can be configured. In addition, by using a wireless system for automatic meter reading as a wireless device, a system can be realized at low cost.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration example of an automatic meter reading system of a gas meter used in the present invention.

FIG. 2 is a diagram showing a configuration of a main part of FIG. 1;

FIG. 3 is a diagram illustrating a configuration example of a detour communication path according to the embodiment of the present invention.

FIG. 4 is a block diagram showing details of a gas meter part of FIG. 3;

[Explanation of symbols]

 Reference Signs List 1 management computer 2 communication network 3 regional communication network 4 wireless terminal 5 gas meter 6 wireless unit 7 communication line 20 network 21a, 21b security center 22a, 22b communication line 23a, 23b protector 24a, 24b NCU 25a, 25b gas meter 26a, 26b Telephone 27 security device 30 microcomputer system 31 wireless module 32 antenna

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Claims (3)

[Claims] Claims 1. A security / disaster prevention sensor is installed in a house or the like to which security is contracted, and is installed at the house side of a security system for notifying the security company center via a telephone line of the occurrence of an abnormality when the sensor is activated. Means for detecting disconnection of the telephone line, and wireless transmission installed in the contract house or the like, wherein the crime prevention / disaster prevention sensor detects an abnormality and transmits an abnormality occurrence signal when the telephone line is disconnected. , A wireless receiver installed in a neighboring house such as a contract house, and means for reporting the occurrence of an abnormality from the telephone of the neighbor to the security company center via a telephone line when the wireless receiver of the neighbor receives an abnormality occurrence signal And a detour notification system when the telephone line is disconnected. 2. The system according to claim 1, wherein, when only a disconnection of the telephone line is detected, an abnormality occurrence signal containing the telephone disconnection is generated and transmitted from the wireless transmitter. A detour notification system at the time of telephone line disconnection characterized by comprising means. 3. A detour system for a telephone line when a telephone line is disconnected according to claim 1 or 2, wherein a meter reading device installed in each home is connected to a terminal as a wireless transmitter and a wireless receiver by wireless communication means. The terminal is connected to a center device via a network, and a wireless device of a wireless meter reading system that collects meter readings of meters at homes in the center device is used. Notification system.