JP2006243990A - Security system for gas-using facility - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To propose a security system for making it unnecessary for a resident to switch a mode. <P>SOLUTION: The security system 1 is provided with a residence side device 5 and a centralized monitor device 3 connected through a general communication line 6 to the residence side device 5. The residence side device 5 is provided with a gas meter 11, a gas non-use monitoring device 12, a sensor group 13 for detecting the abnormality of a general residence 4 and the abnormality of a resident and a transmitting device 14 for communicating through the general communication line 6 to the centralized monitor device 3. The centralized monitor device 3 uses a time zone when it is estimated that the resident goes out as a monitor time zone among gas non-use time zones to be calculated from the detection result of the gas non-use monitoring device 12, and monitors whether or not the abnormality of the general house 4 and the resident has occurred based on the output of the sensor group 13 of the general residence 4 in this time zone. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a security system for a gas use facility that uses an automatic gas meter reading system to check the safety of residents in the gas use facility and monitor illegal intrusion of the gas use facility.

  In recent years, automatic meter reading systems in which gas meter reading in general homes is performed on the central monitoring center side via a general communication line have become widespread. In this automatic meter reading system, a gas meter and a transmission device are installed in a gas use facility such as a general household, and the transmission device is configured to automatically transmit the meter reading data of the gas meter to a centralized monitoring center via a general communication line. Yes.

  Here, the present applicant has proposed a system that uses an automatic gas meter reading system to monitor the use of gas and confirm the safety of residents, particularly elderly people living alone (see, for example, Patent Document 1). In such a safety confirmation system, a gas non-use monitoring device (integrated value counter) connected to a gas meter creates gas usage status data based on gas meter reading data acquired from the gas meter, and the gas usage status data is transmitted to the transmission device. And it is configured to automatically transmit to a centralized monitoring center via a general communication line. Since the central monitoring center can calculate the daily gas usage pattern and the like based on the gas usage status data, it can accurately detect the resident's life abnormality.

On the other hand, with the increase in crimes and the like in recent years, the number of cases where a security system for crime prevention and the like is provided in ordinary households is increasing. In general, a security system includes a sensor that detects an abnormality such as an intrusion of a person or a fire, and a transmission device that notifies the centralized monitoring center when the sensor detects an abnormality. The transmission device is provided with operation buttons for switching to “at-home mode” for turning off the security system and “outing mode” for turning on the security system. Alternatively, there is a switch to each mode using a dedicated key.
JP 2004-69624 A

  However, the conventional security system is very troublesome because the mode must be switched every time the user goes out or returns home. In addition, if the mode switching is forgotten, there arises a disadvantage that an unnecessary abnormality alarm is transmitted to the monitoring center side.

  In view of the above points, the problem of the present invention is that the resident needs to perform mode switching by estimating the time zone when the resident of the gas use facility is out using the automatic gas meter reading system. It is to propose a security system without any.

In order to solve the above problems, the security system of the present invention includes a facility apparatus installed in a gas use facility,
A centralized monitoring device for monitoring the facility side device via a general communication line,
The facility side device includes a gas meter, a gas non-use monitoring device, a sensor group for detecting an abnormality of the gas use facility and an abnormality of a resident of the gas use facility, and the concentration via the general communication line. A transmission device for communicating with the monitoring device,
The gas non-use monitoring device detects a gas non-use state based on gas meter reading data acquired from the gas meter, and when the gas is not used for a predetermined time or more, a safety confirmation alarm is sent to the transmission device. Output to the centralized monitoring device via
The centralized monitoring device monitors whether an abnormality has occurred in the gas use facility and a resident based on the output of the sensor group of the gas use facility in a preset monitoring time zone,
The monitoring time zone is a time zone in which it is estimated that a resident is out of the gas non-use time zone obtained from the detection result of the gas non-use monitoring device.

  Here, since it is generally sleeping at night and gas is not used, generally, if the time zone during the day in the gas non-use time zone of the day is adopted as the monitoring time zone, Good.

  Next, the sensor group can be roughly divided into two types, that is, a first sensor group including a gas leak alarm and a thermal sensor, and a second sensor group including a human sensor and a door sensor. be able to. It is necessary to monitor gas leaks and fires regardless of whether the resident is at home or going out. Therefore, it is desirable that the centralized monitoring device monitors whether or not an abnormality has occurred in the gas use facility based on the output of the first sensor group even in a time zone other than the monitoring time zone.

  In the present invention, the transmission device includes a transmission device side setting switching unit that switches between valid and invalid settings of the output from the second sensor group. The transmission device side setting switching unit is set to validate the output from the second sensor group in the monitoring time zone and to invalidate the output from the second sensor group in a time zone other than the monitoring time zone. Switch.

  Here, in order to change a monitoring time zone so as to correspond to a life pattern that is changed each time, the transmission device stores a detection result of the gas non-use monitoring device over a predetermined period, and the storage It is desirable to provide an update unit that updates the monitoring time period for each predetermined period based on the storage contents of the unit. The transmission device side setting switching unit switches the setting based on the monitoring time zone updated by the updating unit.

  In this case, in the transmission device, the storage unit is configured to store and hold matrix data regarding the presence / absence of gas use in each time zone of the day every week, and the update unit includes the plurality of weeks The monitoring time zone may be updated based on the matrix data synthesis result.

  Further, the setting of the transmission device side setting switching unit can be switched by remote operation by the centralized monitoring device.

  In this case, the centralized monitoring device is based on a storage unit that stores a detection result of the gas non-use monitoring device transmitted via the transmission device over a predetermined period, and a storage content of the storage unit, A configuration including an updating unit that updates the monitoring time zone and a remote operation unit that performs a setting switching operation of the transmission device side setting switching unit can be employed for each predetermined period. The remote operation unit performs a setting switching operation of the transmission device side setting switching unit based on the monitoring time zone updated by the updating unit.

  On the other hand, the centralized monitoring device may be configured to include a centralized monitoring device side setting switching unit that switches between valid and invalid settings of the output from the second sensor group. The centralized monitoring device side setting switching unit validates the output from the second sensor group in the monitoring time zone and invalidates the output from the second sensor group in a time zone other than the monitoring time zone. Switch settings.

  Even in this case, in order to change the monitoring time zone so as to correspond to the life pattern changed each time, the centralized monitoring device detects the detection result of the gas non-use monitoring device transmitted via the transmission device. It is desirable to include a storage unit that stores the monitoring period for a predetermined period, and an update unit that updates the monitoring time period for each predetermined period based on the storage contents of the storage unit. The monitoring device side setting switching unit switches the setting based on the monitoring time zone updated by the updating unit.

  Here, in order to cope with a resident's sudden return home, going out, etc., the facility side device can manually switch the setting of the transmission device side setting switching unit or the monitoring device side setting switching unit. It is desirable to have an operation unit.

  Next, it is desirable that the centralized monitoring apparatus notifies the monitoring status of the gas using facility to a preset contact using an Internet mail service.

  Moreover, it is desirable to notify that there was no abnormality in the monitoring time period as the monitoring status notification. In this way, the user (resident) can know from this e-mail that there was no abnormality and that the monitoring was completed.

  Here, since the security system of the present invention performs switching between modes on the centralized monitoring device side, the resident may lose consciousness of joining the security system. However, even if there is no abnormality, the resident can recognize that he / she has joined the security system by the e-mail transmitted every time.

  In the security system of the present invention, the operation of the security system (switching between the home mode and the outing mode) is linked to the detection result of the gas non-use monitoring device. That is, it is possible to determine the time zone in which the occupant is estimated to be out of the gas non-use time zone obtained from the detection result of the gas non-use monitoring device. This time zone is set as the monitoring time zone, that is, during that time, the outing mode is set, and the centralized monitoring device monitors the abnormality of the gas use facility and the resident based on the output of the sensor group installed in the gas use facility. Therefore, since the mode is switched on the security system side, it is not necessary for the resident to switch the mode of the security system as in the prior art.

  Further, the security system of the present invention has a so-called self-learning function for updating the monitoring time zone based on the presence or absence of gas use every hour. Therefore, even if the resident's life pattern changes every day (every day of the week) and every season, the monitoring time zone can be changed following the change.

  An example of a security system to which the present invention is applied will be described below with reference to the drawings.

[Embodiment 1]
FIG. 1 is a schematic configuration diagram of a security system according to Embodiment 1 of the present invention, and FIG. 2 is a schematic block diagram of the system. As shown in these figures, the security system 1 of this example includes a centralized monitoring device 3 installed in a centralized monitoring center 2, a housing-side device 5 installed in a general house 4 that is a gas use facility, A communication line that can be connected to each other, for example, a general communication line 6 such as a telephone line, a communication terminal 7a installed in the police, a fire department or a gas company, and a communication terminal 7b owned by a resident Has been. As the communication terminal 7b owned by the resident, a communication terminal that can use the Internet mail service, for example, a mobile phone that can use the character information service “i-mode” (registered trademark) of NTT DOCOMO is used. it can.

  The centralized monitoring device 3 of the centralized monitoring center 2 is a system that functions as an Internet server, for example, and manages and operates a browsing site for various information such as a history of gas usage in each general house 4 on the Internet. Those that have been given access rights in advance, such as residents, can access the browsing site.

  The house side device 5 of the ordinary house 4 includes a gas meter 11 that measures a gas use flow rate in the ordinary house 4, a gas non-use monitoring device 12, and a sensor group 13 that detects an abnormality of the ordinary house 4 and an abnormality of a resident. And a transmission device 14 for performing communication with the centralized monitoring device 3 via the general communication line 6.

  The meter reading data of the gas by the gas meter 11 is supplied to the transmission device 14 via the gas non-use monitoring device 12. The transmission device 14 transmits meter reading data to the centralized monitoring device 3 via the communication line 6 periodically or when there is a request from the centralized monitoring device 3. The basic configuration of the gas meter 11 is the same as that generally used, and a meter main body 21 including a measuring unit (not shown) for measuring the flow rate of gas flowing through a gas pipe (not shown), and this And a control unit 22 including an electronic counter attached to the meter body 21. In general, a unit flow rate pulse signal representing a gas flow rate is supplied from the meter body 21 to the control unit 22. The control unit 22 calculates and displays integrated values of various gas usage flows based on signals obtained from the meter main body 21.

  The gas non-use monitoring device 12 creates gas use status data representing the gas use status based on the gas meter reading data acquired from the gas meter 11. This gas usage status data is transmitted to the centralized monitoring device 3 from the transmission device 14 via the communication line 6 periodically or when requested by the centralized monitoring device 3. In addition, the actual gas usage status is constantly monitored, and when the actual gas usage status is different from the gas usage status data, for example, when the gas is not used in the time zone where the gas is always used, and When the non-use state of gas continues for a predetermined time or more, it is determined that an abnormality has occurred in the resident, and a safety confirmation alarm is generated. The generated safety confirmation alarm is sent from the transmission device 14 to the centralized monitoring device 3 via the communication line 6.

  The sensor group 13 can be broadly divided into two types, that is, a first sensor group 15 such as a gas leak alarm 24 and a thermal sensor 25 that must always be in a warning mode, and a resident's It can be divided into the second sensor group 16 such as the human sensor 26 and the door sensor 27 that need only be in the alert mode (outing mode) only when going out.

  In the first sensor group 15, the gas leak alarm 24 generates a gas leak alarm when it detects a gas leak, and the heat sensor 25 generates a fire alarm when it detects a fire. In the second sensor group 16, the human sensor 26 generates a human alarm when it detects that a person is present, and the door sensor 27 generates an intrusion alarm when it detects that a door, a window, or the like has been opened. These alarms are sent from the transmission device 14 to the centralized monitoring device 3 via the communication line 6.

  In this example, the transmission device 14 automatically performs mode switching of the second sensor group 16. More specifically, the transmission device 14 is configured mainly with a microcomputer, and is configured to implement the functions indicated by the blocks in FIG. 2 by executing a control program stored in the ROM. .

  The transmission device 14 includes a setting switching unit 31 that switches between valid and invalid settings of the output from the second sensor group 16, and this setting switching unit 31 is in a time zone in which it is estimated that the resident is out. When there is an output from the second sensor group 16, the output is validated, while when there is an output from the second sensor group 16 in other time zones, the output is invalidated. Change the setting to. The time zone in which the occupant is estimated to be out, that is, the monitoring time zone can be obtained from the detection result (gas usage status data) of the gas non-use monitoring device 12, for example, the gas non-use time of the day. Among the bands, it can be a daytime period during which it is estimated that the resident is out for work.

  Also, in this example, the monitoring time zone is updated every predetermined period in order to correspond to the life pattern that is changed each time. The transmission device 14 stores the gas use status data of the gas non-use monitoring device 12 over a predetermined period, and sets a monitoring time zone for each predetermined period based on the storage contents of the storage unit 32. The setting switching unit 31 switches the setting based on the monitoring time zone updated by the updating unit 33.

  FIG. 3 is an explanatory diagram illustrating an example of the setting operation of the monitoring time zone of the setting switching unit 31. As shown in this figure, the storage unit 32 is prepared based on the gas usage status data supplied from the gas non-use monitoring device 12, for example, for 3 weeks relating to the presence or absence of gas usage in each time zone of the day. Matrix data D1, D2, and D3 are stored. The update unit 33 superimposes the matrix data D1 to D3 for three weeks, for example, a time zone in which gas is not used for 5 hours or more continuously during the day is set as a monitoring time zone.

  In the illustrated example, in the synthesized matrix data Da, the time zone between the arrows is a monitoring time zone, Sunday is from 13:00 to 17:00, Monday is from 9:00 to 16:00, and Tuesday to Friday is from 9:00. Between 15:00 and Saturday, the monitoring time zone is from 9:00 to 16:00, and the setting switching unit 31 switches the setting based on it. In this way, the update unit 33 synthesizes the latest data D1 to D3 for three weeks for each week, and sequentially updates the initially set monitoring time zone. Therefore, the monitoring time zone is changed so as to follow the resident's life pattern.

  Further, in this example, in order to cope with a resident's sudden return home, going out, etc., the setting switching of the setting switching unit 31 can be manually performed from the operation unit 35.

  The centralized monitoring device 3 constantly monitors whether or not an abnormality has occurred in the general house 4 and the resident based on the output from the sensor group 13, and if there is an output from the sensor group 13, this fact is indicated. Using the Internet mail service, the communication terminal 7b of the user (resident) is notified by electronic mail. This e-mail includes information indicating which sensor in the sensor group 13 has output.

  When the user receives the e-mail, he / she confirms the contents of the abnormal alarm displayed on the screen, goes to the general home 4 where the alarm is generated, and if necessary, reports to the police, fire department, gas company, etc. To do. Alternatively, when the central monitoring center 2 side receives an output from the sensor group 13 or the like, it may directly report to the police, fire department, gas company, etc. according to each sensor.

  On the other hand, when there is no output from the sensor group 13 during the monitoring time period, the centralized monitoring device 3 notifies the user by e-mail that there was no abnormality during the monitoring time period. The user can know from this electronic mail that there was no abnormality and that the monitoring was completed.

  As described above, in the security system 1 of this example, the operation of the security system 1 (switching between the home mode and the outing mode) is linked to the detection result of the gas non-use monitoring device 12. That is, it is possible to determine the time zone in which the occupant is estimated to be out of the gas non-use time zone obtained from the detection result of the gas non-use monitoring device 12. This time zone is set as the monitoring time zone, that is, during that time, the outing mode is set, and the centralized monitoring device 3 monitors the abnormalities of the ordinary house 4 and the resident based on the output of the sensor group 13 installed in the ordinary house 4. Therefore, since the mode is switched on the security system side, it is not necessary for the resident to switch the mode of the security system as in the prior art.

  Here, by switching the mode on the security system side, the resident is less aware of joining the security system. However, in this example, even if there is no abnormality, the centralized monitoring device 3 transmits an e-mail every time, so that the resident can recognize that he / she has joined the security system.

  In addition, the security system 1 of this example has a so-called self-learning function that updates the monitoring time zone based on the presence / absence of gas use for each hour. Therefore, even if the resident's life pattern changes every day (every day of the week) and every season, the monitoring time zone can be changed following the change.

[Embodiment 2]
FIG. 4 is a schematic block diagram showing a security system according to Embodiment 2 of the present invention. Since the basic configuration of this example and the security system of the third embodiment described later is the same as that of the above embodiment, the same reference numerals are given to portions having corresponding functions, and descriptions thereof are omitted. To do.

  The security system 1A of this example also includes a centralized monitoring device 3A installed in the centralized monitoring center 2, a residential device 5 installed in a general house 4 that is a gas-using facility, and a telephone line that can connect between them. General communication line 6 and a communication terminal 7 owned by a resident or the like. However, the house side device 5 is different in that the centralized monitoring device 3A remotely switches the setting of the setting switching unit 31 of the transmission device 14A.

  The centralized monitoring device 3A is determined in advance based on the storage unit 36 that stores the detection result of the gas non-use monitoring device 12 transmitted through the transmission device 14A over a predetermined period, and the storage contents of the storage unit 36. For each period, an update unit 37 that updates the monitoring time zone and a remote operation unit 38 that performs a setting switching operation of the setting switching unit 31 of the transmission device 14A are provided. The remote operation unit 38 performs a setting switching operation of the setting switching unit 31 of the transmission device 14 </ b> A based on the monitoring time zone updated by the updating unit 37.

  Also in this example, in order to cope with a resident's sudden return home, going out, etc., the setting switching of the setting switching unit 31 can be manually performed from the operation unit 35.

  The centralized monitoring device 3A constantly monitors whether or not an abnormality has occurred in the general house 4 and the resident based on the output from the sensor group 13, and if there is an output from the sensor group 13, the fact is reported. Using the Internet mail service, the communication terminal 7 of the user (resident) is notified by electronic mail. When the user receives the e-mail, he / she confirms the contents of the abnormal alarm displayed on the screen, goes to the general home 4 where the alarm is generated, and if necessary, reports to the police, fire department, gas company, etc. To do.

  On the other hand, when there is no output from the sensor group 13 during the monitoring time period, the centralized monitoring apparatus 3A notifies the user by e-mail that there was no abnormality in the monitoring time period, and the transmission apparatus 14A by remote operation. The setting switching unit 31 is switched.

[Embodiment 3]
FIG. 5 is a schematic block diagram showing a security system according to Embodiment 3 of the present invention. As shown in this figure, in the security system 1B of this example, a setting switching unit 34 for switching between valid and invalid settings of the output from the second sensor group 16 is configured on the centralized monitoring device 3 side. That is, all the output from the second sensor group 16 is transmitted from the transmission device 14B to the centralized monitoring device 3B via the communication line 6. In the centralized monitoring device 3B, the monitoring time zone of the setting switching unit 34 is used. Based on this setting, the output is valid if the output is in the monitoring time zone, while the output is invalid if it is in any other time zone.

  Further, in order to correspond to the life pattern changed each time, the centralized monitoring device 3B stores a detection result of the gas non-use monitoring device 12 transmitted via the transmission device 14B over a predetermined period; Based on the storage contents of the storage unit 36B, an update unit 37B is provided for updating the monitoring time zone for each predetermined period. Based on the monitoring time zone updated by the updating unit 37B, the setting switching unit 34 switches the setting.

  Furthermore, in this example, in order to cope with a resident's sudden return home or going out, the setting of the centralized monitoring device side setting switching unit 34 is manually switched from the operation unit 35B via the transmission device 14B. Can be done.

  The centralized monitoring device 3B constantly monitors whether or not an abnormality has occurred in the general house 4 and the resident based on the output from the sensor group 13, and if there is an output from the sensor group 13, that fact is indicated. Using the Internet mail service, the communication terminal 7b of the user (resident) is notified by electronic mail. When the user receives the e-mail, he / she confirms the content of the abnormality alarm displayed on the screen, goes to the general home 4 where the alarm occurred, and reports to the police, fire department, gas company, etc. if necessary. To do.

  On the other hand, when there is no output from the sensor group 13 during the monitoring time period, the centralized monitoring device 3B notifies the user by e-mail that there is no abnormality in the monitoring time period, and the setting of the setting switching unit 34 Switch.

It is a schematic block diagram of the security system which concerns on Embodiment 1 of this invention. It is a schematic block diagram of the system shown in FIG. It is explanatory drawing which shows the setting operation | movement of the application time slot | zone of going-out mode. It is a schematic block diagram which shows the security system which concerns on Embodiment 2 of this invention. It is a schematic block diagram which shows the security system which concerns on Embodiment 3 of this invention.

Explanation of symbols

1, 1A, 1B Security system 2 Central monitoring center 3, 3A, 3B Central monitoring device 4 General housing (gas use facility)
5 Housing-side device 6 Communication lines 7a, 7b Communication terminal 11 Gas meter 12 Gas non-use monitoring device 13 Sensor group 14, 14A, 14B Transmission device 15 First sensor group 16 Second sensor group 24 Gas leak alarm 25 Heat detection sensor 26 Human sensor 27 Door sensor 31 Transmission device side setting switching unit 34 Centralized monitoring device side setting switching unit 32, 36, 36B Storage unit 33, 37, 37B Update unit 38 Remote operation unit 35, 35B Operation unit

Claims (16)

Facility-side equipment installed in gas-using facilities;
A centralized monitoring device that monitors the facility side device via a communication line;
The facility-side device includes a gas meter, a gas non-use monitoring device, a sensor group for detecting an abnormality of the gas use facility and a resident of the gas use facility, and the centralized monitoring via the communication line. A transmission device for communicating with the device,
The gas non-use monitoring device detects a gas non-use state based on gas meter reading data acquired from the gas meter, and when the gas is not used for a predetermined time or more, a safety confirmation alarm is sent to the transmission device. Output to the centralized monitoring device via
The centralized monitoring device monitors whether an abnormality has occurred in the gas use facility and a resident based on the output of the sensor group of the gas use facility in a preset monitoring time zone,
The monitoring time zone is a time zone in which a resident is estimated to be out of a gas non-use time zone obtained from a detection result of the gas non-use monitoring device. . In claim 1,
The gas use facility security system according to claim 1, wherein the monitoring time zone is a daytime time zone in the gas non-use time zone of a day. In claim 1 or 2,
The sensor group includes a first sensor group including a gas leak alarm and a heat sensor, and a second sensor group including a human sensor and a door sensor.
In a time zone other than the monitoring time zone, the centralized monitoring device monitors whether or not an abnormality has occurred in the gas usage facility based on the output of the first sensor group. Security system. In claim 3,
The transmission device includes a transmission device side setting switching unit that switches between valid and invalid settings of the output from the second sensor group,
The transmission device side setting switching unit is set to validate the output from the second sensor group in the monitoring time zone and to invalidate the output from the second sensor group in a time zone other than the monitoring time zone. A security system for gas use facilities characterized by switching. In claim 4,
The transmission device stores a detection result of the gas non-use monitoring device over a predetermined period, and an update unit that updates the monitoring time zone for each predetermined period based on the storage content of the storage unit And
The transmission device-side setting switching unit switches the setting based on the monitoring time zone updated by the updating unit. In claim 5,
In the storage unit, matrix data on the presence or absence of gas use in each time zone of the day is stored and held every week,
The said update part updates the said monitoring time slot | zone based on the synthetic | combination result of the said matrix data of several weeks, The security system of the gas use facility characterized by the above-mentioned. In claim 4,
A gas use facility security system, wherein the setting of the transmission device side setting switching unit is switched by remote operation by the centralized monitoring device. In claim 7,
The centralized monitoring device stores a detection result of the gas non-use monitoring device transmitted via the transmission device over a predetermined period and a predetermined period based on the storage content of the storage unit. An update unit that updates the monitoring time zone, and a remote operation unit that performs a setting switching operation of the transmission device side setting switching unit,
The remote operation unit performs a setting switching operation of the transmission device side setting switching unit based on the monitoring time zone updated by the updating unit. In claim 8,
In the centralized monitoring device, the storage unit stores and holds matrix data regarding the presence or absence of gas use in each time zone of the day for each week, and the update unit stores the matrix data for a plurality of weeks. A security system for a gas use facility, wherein the monitoring time zone is updated based on a synthesis result. In any of claims 4 to 9,
The facility-side apparatus is provided with a security system for a gas use facility, comprising an operation unit that can manually switch the setting of the transmission device-side setting switching unit. In claim 3,
The centralized monitoring device includes a centralized monitoring device side setting switching unit that switches between valid and invalid settings of the output from the second sensor group,
The centralized monitoring device side setting switching unit validates the output from the second sensor group in the monitoring time zone and invalidates the output from the second sensor group in a time zone other than the monitoring time zone. A security system for gas use facilities, characterized by switching settings. In claim 11,
The centralized monitoring device stores a detection result of the gas non-use monitoring device transmitted via the transmission device over a predetermined period and a predetermined period based on the storage content of the storage unit. And an update unit for updating the monitoring time zone,
The monitoring system-side setting switching unit switches the setting based on the monitoring time zone updated by the updating unit. In claim 12,
In the centralized monitoring device, the storage unit stores and holds matrix data regarding the presence or absence of gas use in each time zone of the day for each week, and the update unit stores the matrix data for a plurality of weeks. A security system for a gas use facility, wherein the monitoring time zone is updated based on a synthesis result. In any of claims 11 to 13,
The said facility side apparatus is provided with the operation part which can switch the setting of the said monitoring apparatus side setting switching part manually via the said transmission apparatus, The security system of the gas use facility characterized by the above-mentioned. In any one of Claims 1 thru | or 14.
The centralized monitoring device notifies the monitoring status of the gas using facility to a preset contact using an Internet mail service. In claim 15,
As a notification of the monitoring status, a notification is made that there is no abnormality in the monitoring time zone, and a security system for a gas use facility is provided.