JP6574694B2 - Security device and security service support system - Google Patents

Description

  The present invention relates to a security device and a security service support system for identifying causes of device abnormality of a wireless transmitter and assisting in dealing with the abnormality.

  Conventionally, there has been proposed a wireless communication system that efficiently determines whether or not a wireless transmitter can be registered while ensuring communication quality even if the wireless communication environment varies (see, for example, Patent Document 1). In this conventional wireless communication system, the degree of variation in communication quality with a wireless device (security sensor) to be communicated is determined by a wireless controller in the past predetermined period, and when the variation is large, A radio wave test is performed in advance. That is, in the conventional wireless communication system, when the wireless communication environment changes, the communication quality is ensured before the operation of the additional wireless device is started.

Japanese Patent Laying-Open No. 2015-56163

  However, in the conventional wireless communication system, no consideration is given to how to ensure the communication quality of the existing wireless device when the wireless communication environment changes. For example, if the wireless device is a security sensor, for example, if communication with the security sensor cannot be confirmed due to a change in the wireless communication environment, the security sensor may not be able to monitor events to be detected. Therefore, in such a case, it is necessary to deal with an emergency by adjusting the operations of the counselor even if the number of counselors is limited, assuming that the radio device (security sensor) is malfunctioning. For this reason, it has been desired to be able to detect changes in the wireless communication environment before it interferes with communication.

  It is also possible to determine whether the cause of trouble with regular communication checks is due to a failure of a wireless device or a steady change in the communication environment even when a coping person takes action locally. It was not easy and I had to rely on the experience and intuition of the coping staff. Therefore, when the counselor has little experience, there is a problem that it takes a long time to isolate the cause.

  The present invention has been made in view of the above problems, and can ensure prompt reporting when a device abnormality occurs, and systematize the cause of the device abnormality to improve the quality of countermeasures by the coping personnel. It is an object to provide a security device and a security service support system that can be made uniform.

  The security device of the present invention is a security device that receives a radio signal from a radio transmitter installed in a monitoring area, and when the radio signal from the radio transmitter is not received for a predetermined time or more, the radio transmitter When the abnormality determination unit determines that the device is abnormal, and the received electric field strength of the wireless signal from the wireless transmitter is less than the reference strength or the collision frequency of the wireless signal from the wireless transmitter is greater than the reference frequency, A wireless quality determination unit that determines that the wireless transmitter is in a low wireless quality state, and when the abnormality determination unit determines that the device is abnormal, the wireless transmitter indicates that the device is abnormal. A radio environment indicating that the radio transmitter is in the low radio quality state when a device abnormality signal is transmitted to a remote center device and the radio quality judgment unit determines that the radio quality is in a low status. A center notification unit that transmits a signal to the center device, and when the abnormality determination unit determines that the device is abnormal, the wireless transmitter notifies and outputs that the device is abnormal, And a surrounding notification unit that does not report that the wireless transmitter is in the low wireless quality state when the quality determining unit determines that the wireless quality is in the low state.

  According to this configuration, when there is a wireless transmitter that cannot receive a wireless signal for a predetermined time or more, the security device determines that the device is abnormal and transmits a device abnormality signal to the center device. Then, a notification that the device is abnormal is output. On the other hand, the security device can receive a radio signal, but if the received electric field strength is low or the collision frequency is high, the security device determines that the radio quality is low and transmits a radio environment change signal to the center device. It is not notified that the radio quality is low.

  As a result, when a device abnormality occurs in the wireless transmitter, it is possible to immediately notify the center and notify the surroundings, and it is possible to ensure quick reporting when a device abnormality occurs. In addition, when the wireless transmitter is in a low wireless quality state, the center device is notified before it interferes with wireless communication, so it becomes possible for the center to instruct the coordinator to propose a wireless environment improvement, It can be prevented in advance that the wireless signal cannot be received from the wireless transmitter due to the deterioration of the wireless quality. That is, it is possible to prevent and maintain device abnormality alerts.

  In addition, when an abnormality occurs in the wireless transmitter, the center can know whether the cause of the abnormality is a device abnormality or low wireless quality, so the center can give appropriate instructions Can send. In other words, regardless of the personal cause separation skills such as the experience and intuition of the counselor, it is possible to systematize the cause and uniformize the quality (value) of coping by the counselor.

  Moreover, in the security device of the present invention, the surrounding notification unit transmits the wireless environment change signal to the center device, and when a predetermined time has elapsed, the wireless transmitter is in the low wireless quality state. This may be output as a notification.

  According to this configuration, even when the wireless transmitter is in a wireless quality low state, a notification is output that the wireless quality is in a low state when a predetermined time has elapsed. As a result, the user who is the user of the security device can grasp that the wireless quality is still in a low state, and the wireless quality can be lowered due to the user taking appropriate measures to improve the wireless environment. It is possible to prevent the wireless signal from being unable to be received from the transmitter. That is, it is possible to prevent and maintain device abnormality alerts.

  Further, the security device of the present invention further includes a countermeasure detection unit that detects that a counselor has started inspection of the monitoring area, and the surrounding notification unit transmits the wireless environment change signal to the center device. Then, when the countermeasure detection unit detects the start of the inspection, a notification output may be made that the wireless transmitter is in the low wireless quality state.

  According to this configuration, even when the wireless transmitter is in a wireless quality low state, when it is detected that the coping staff has started checking the security device, a notification is output that the wireless quality is in a low state. As a result, the counselor who came to check the security device can know that the wireless quality is still in a low state, and the counselor makes suggestions for improving the wireless environment. It is possible to prevent the wireless signal from being unable to be received from the transmitter. That is, it is possible to prevent and maintain device abnormality alerts.

  In addition, the security device of the present invention further communicates the wireless transmitter with a condition that the wireless signal is received from the wireless transmitter with a received electric field strength equal to or higher than a second reference strength higher than the reference strength. You may provide the registration part registered as an apparatus.

  According to this configuration, when a radio signal is received from a radio transmitter with a received electric field strength equal to or higher than a second reference strength (for example, a reference at the time of installation) that is higher than a reference strength used for determination of a low radio quality state, Are registered as communication target devices. As a result, it is possible to secure communication quality at a high radio wave intensity when the wireless transmitter is installed, and to reduce the risk that the wireless signal cannot be received from the wireless transmitter due to the deterioration of the wireless quality.

  The security service support system of the present invention is a security service support system comprising a security device that receives a radio signal from a wireless transmitter installed in a monitoring area, and a remote center device that communicates with the security device, The security device determines that the wireless transmitter is abnormal when it does not receive a wireless signal from the wireless transmitter for a predetermined time or more, and a storage unit that stores communication log information with the wireless transmitter. An abnormality determination unit; and a center notification unit that transmits an apparatus abnormality signal indicating that the wireless transmitter is an apparatus abnormality to the center device when the abnormality determination unit determines that the apparatus is abnormal. The center device, upon receiving the device abnormality signal, transmits a request signal requesting communication log information with the wireless transmitter to the security device, and the wireless transmission from the security device. Communication log acquisition unit for acquiring communication log information, and based on communication log information with the wireless transmitter acquired from the security device, the received electric field strength of the wireless signal from the wireless transmitter is below a reference strength or And a radio quality determination unit that determines that the radio transmitter is in a low radio quality state when a collision frequency of radio signals from the radio transmitter is equal to or higher than a reference frequency.

  According to this configuration, when there is a wireless transmitter that cannot receive a wireless signal for a predetermined time or more, the security device determines that the device is abnormal and transmits a device abnormality signal to the center device. When the center device receives the device abnormality signal, the center device transmits a request signal to the security device, and acquires communication log information with the wireless transmitter. Then, based on the acquired communication log information, if the received electric field strength is low or the collision frequency is high, it is determined that the wireless quality is low.

  As a result, when a device abnormality occurs in the wireless transmitter, it is possible to immediately notify the center, and it is possible to ensure quick reporting when a device abnormality occurs. Also, the center device can acquire communication log information with the wireless transmitter from the security device and determine whether or not the wireless transmitter is in a low wireless quality state. It is possible to prevent the frequent occurrence of the inability to receive a radio signal from the radio transmitter due to a decrease in radio quality. That is, it is possible to prevent and maintain frequent occurrence of device abnormality reports.

  In addition, when an abnormality occurs in the wireless transmitter, the center can know whether the cause of the abnormality is a device abnormality or low wireless quality, so the center can give appropriate instructions Can send. In other words, regardless of the personal cause separation skills such as the experience and intuition of the counselor, it is possible to systematize the cause and uniformize the quality (value) of coping by the counselor.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to ensure the quick report property when an apparatus abnormality generate | occur | produces, the cause of an apparatus abnormality can be systematized and the quality of the response by a counselor can be equalized.

It is a schematic structure figure of the security service support system in an embodiment of the invention. It is a block diagram of a security device, a center device, and a portable terminal in an embodiment of the present invention. It is a flowchart which shows operation | movement of the security apparatus in embodiment of this invention. It is a block diagram of the security apparatus, center apparatus, and portable terminal in other embodiment. It is a sequence diagram which shows operation | movement of the security service support system in other embodiment.

  Hereinafter, a security service support system according to an embodiment of the present invention will be described with reference to the drawings. In the present embodiment, a case of a security service support system used for security of facilities and residences is illustrated.

  A configuration of a security service support system according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a schematic configuration of a security service support system according to the present embodiment. As shown in FIG. 1, a security service support system 1 includes a security device 2 installed in a monitoring area such as a facility or a residence, and a center device 3 installed in a remote monitoring center. The security device 2 communicates with the center device 3 via the network 4 (public line network or Internet network). In addition, a coping person who deals with an abnormality that has occurred in the monitoring area has the portable terminal 5. The center device 3 communicates wirelessly with the mobile terminal 5 via the network 4 and the base station 6.

  As shown in FIG. 1, security sensors 7 for detecting abnormalities in the monitoring area are installed at various locations in the monitoring area. The security sensor 7 is connected to the security device 2. The security sensor 7 includes an indoor sensor installed in a building in the monitoring area and an outdoor sensor installed outside the building in the monitoring area such as a garden. The indoor installation sensor includes, for example, a sensor that detects that a window or a door is opened, a sensor that detects a moving body in a room, and the like. Moreover, as a sensor of outdoor installation, the sensor etc. which detect a moving body are contained, for example. The security sensor 7 transmits a detection signal including its own identification information to the security device 2 when detecting an abnormality that is a detection target event. Communication between the security sensor 7 and the security device 2 is performed by wire or wireless. The security sensor 7 that wirelessly communicates with the security device 2 corresponds to the wireless transmitter of the present invention.

  When the alarm device 2 reports the occurrence of an abnormality to the center device 3 of the monitoring center, the center device 3 notifies this information to the controller. Then, a “handling” instruction is sent from the monitoring center to the coping personnel to expressly deal with the abnormality by rushing to the monitoring area. The coordinator handles abnormalities (such as intrusion of suspicious persons, fires, etc.) that occurred in the facility or residence while communicating with or coordinating with the monitoring center.

  Here, the configuration of the security device 2, the center device 3, and the portable terminal 5 will be described in detail with reference to FIG. First, the configuration of the security device 2 will be described. As shown in FIG. 2, the security device 2 includes an operation unit 20, a communication unit 21, a display unit 22, an input / output unit 23, a storage unit 24, and a control unit 25.

  The operation unit 20 is operated to set an operation mode of the security device 2 (a security set mode, a security release mode, etc., which will be described later). The operation unit 20 has a function of reading user authentication information. When the authentication information is read and the user is collated, operation input is allowed. The operation unit 20 may be configured with a touch panel or the like.

  The communication unit 21 has a function for communicating with the center device 3. The communication unit 21 is a communication interface for connecting the security device 2 and the center device 3. As described above, the security device 2 and the center device 3 are connected via the public line network or the Internet network as the network 4.

  The display unit 22 has a function of outputting an operation guide or the like to the user. The display unit 22 can be configured by a liquid crystal display, an indicator lamp, a speaker, and the like. The display unit 22 is installed in the vicinity of the operation unit 20 or is integrated with the operation unit 20. An operation guide and menu display are performed by the display unit 22. Operation guidance or the like may be performed by voice notification from a speaker.

  The input / output unit 23 has a function as an interface to which peripheral devices such as the security sensor 7 are connected. The input / output unit 23 is a security sensor such as a magnet sensor that detects opening / closing of a door disposed at an appropriate place inside / outside a building to be monitored in the monitoring area, and an infrared sensor that detects a human body by infrared rays. Connected to fire sensors such as smoke detectors and heat detectors, emergency buttons operated by users, etc. The input / output unit 23 is a communication interface that receives communication signals and detection signals from various sensors. Each sensor is assigned a unique identification number, and this identification number (ID number) is included in the detection signal.

  The storage unit 24 stores communication log information. The communication log information is information that records a history of communication with the security sensor 7, environmental information associated with the communication, and the like. The communication log information includes, for example, a plurality of types of information such as “received electric field strength” and “radio signal collision”. Further, each time the operation mode is set, the storage unit 24 stores the set time, the set user information, and the set operation mode information as an operation mode history. Furthermore, the memory | storage part 24 has memorize | stored sensor information (information which matched the kind of sensor and the installation position of a sensor for every ID number of various sensors), and abnormality log | history. The abnormality history is a history of receiving a detection signal from the security sensor 7 when the security set mode and the inspection mode are set, and includes identification information of the security sensor 7 and information of reception time.

  The control unit 25 has a function of performing various controls of the security device 2. In this case, the control unit 25 includes a mode setting unit 250, an abnormality determination unit 251, a radio quality determination unit 252, a center notification unit 253, a surrounding notification unit 254, a countermeasure detection unit 255, and a registration unit 256.

  The mode setting unit 250 sets the operation mode of the security device 2 by a user operation. As an operation mode of the security device 2, at least three of a security set mode, a security release mode, and an inspection mode can be set. The user can set the security set mode and the security release mode. The inspection mode is set by the coping person. The security set mode is a mode in which when a detection signal is input from the security sensor 7, it is determined that an abnormality has been detected in the monitoring area and an abnormality is reported to the center device 3. Further, the security release mode refers to a mode in which even if a detection signal is input from the security sensor 7, an abnormality in the monitoring area is not detected and no abnormality is reported. In addition, the detection signal by a fire sensor and an emergency button is constantly monitored, and an abnormality is reported in any of the security set mode and the security release mode. For example, the user operates the operation unit 20 to set the security set mode when leaving the monitoring area, and operates the operation unit 20 to set the security release mode when entering the monitoring area.

  Further, the inspection mode is a mode that indicates that the counselor is inspecting when an abnormality occurs in the guard target or when the guard target needs to be inspected. When the inspection mode is set, the security device 2 stores a detection signal from the security sensor 7 in the storage unit 24 as an abnormality history. During the inspection mode, the coordinator may approach the security sensor 7, so even if a detection signal is input from the security sensor 7, no abnormality is reported to the center device 3. In addition, you may make it notify to the center apparatus 3 not as abnormality but as sensor detection information at the time of inspection mode. Moreover, you may notify the portable terminal 5 which a coping member possesses that the detection signal was input from the security sensor 7. FIG.

  The abnormality determination unit 251 determines that the security sensor 7 has a device abnormality when the wireless signal from the security sensor 7 is not received for a predetermined reference time or longer. The reference time is a threshold value for determining a device abnormality that is longer than the regular communication signal transmission interval of the security sensor 7, and can be set as appropriate according to the communication environment.

  In addition, the abnormality determination unit 251 may have a function of detecting other abnormality (such as fire occurrence or suspicious person intrusion) in the monitoring area. For example, when receiving a detection signal from the security sensor 7, the abnormality detection unit 251 determines whether there is an abnormality based on the current operation mode and the sensor information in the storage unit 24. The abnormality detection unit 251 determines that an abnormality is detected when a detection signal is received from any of the various sensors when the security set mode is set. When the security detection mode is set, the abnormality detection unit 251 determines which of the fire sensor and the emergency button. When a detection signal is received from this, it is determined that there is an abnormality.

  The wireless quality determination unit 252 indicates that the security sensor 7 is in a low wireless quality state when the received electric field strength of a wireless signal received as a communication signal or a detection signal from the security sensor 7 is equal to or lower than a predetermined reference strength (wireless environment It is determined that there is a change. The reference strength is a threshold value for determining the wireless quality, and is set to a value lower than the reference strength at the time of installation of the security sensor 7 (reception strength serving as a reference for registering as a communication target device). This reference strength can be appropriately set according to the communication environment.

  The wireless quality determination unit 252 determines that the security sensor 7 is in a low wireless quality state (there is a change in the wireless environment) when the collision frequency of the wireless signal from the security sensor 7 is equal to or higher than a predetermined reference frequency. . The wireless signal transmitted from the security sensor 7 is given an identification ID (for example, a 7-bit code) that is incremented at each transmission. The wireless quality determination unit 252 compares the identification ID of the wireless signal received from the security sensor 7 with the identification ID of the wireless signal received immediately before from the same security sensor 7. It is determined that there is a collision in the wireless signal from the sensor 7, and the frequency (collision frequency) is compared with a reference frequency to determine whether the wireless quality is low. The reference frequency is also a threshold value for determining the wireless quality, and can be set as appropriate according to the communication environment.

  When the abnormality determination unit 251 determines that the device is abnormal, the center notification unit 253 transmits a device abnormality signal indicating that the security sensor 7 is a device abnormality from the communication unit 21 to the remote center device 3. In addition, when the wireless quality determination unit 252 determines that the wireless quality is low, the center notification unit 253 sends a wireless environment change signal indicating that the security sensor 7 is in a low wireless quality state from the communication unit 21 to the center. Transmit to device 3.

  When it is determined by the abnormality determination unit 251 that the device is abnormal, the surrounding notification unit 254 notifies and outputs to the surroundings that the security sensor 7 has a device abnormality when a notification is made by the center notification unit 253. Examples of the notification output method include a notification method using light that lights the display unit 22 and the like, a notification method using sound using a speaker (not shown), and the like.

  If the wireless quality determination unit 252 determines that the wireless quality determination unit 252 determines that the wireless quality is in a low state, the surrounding notification unit 254 does not notify the surroundings that the security sensor 7 is in a low wireless quality state. However, when a predetermined time has elapsed after transmitting the wireless environment change signal to the center device 3, a notification that the security sensor 7 is in a low wireless quality state may be output to the surroundings. The predetermined time may be a periodic inspection cycle (for example, three months) of the security device 2, or may be notified when the next periodic inspection date is reached.

  The handling detection unit 255 detects that the handling staff has started checking the monitoring area. For example, the current state information of the counselor is received from the center device 3 and it is detected that the counselor has arrived at the monitoring area where the security device 2 is installed. In addition, the countermeasure detection unit 255 may detect that the countermeasure member has started the inspection when the mode setting unit 250 is set to the inspection mode. After transmitting the wireless environment change signal to the center device 3, the surrounding notification unit 254 outputs a notification to the surroundings that the security sensor 7 is in a low wireless quality state when the countermeasure detection unit 255 detects the start of inspection. May be.

  The registration unit 256 functions when the security sensor 7 is newly installed or replaced and registered as the communication target security sensor 7 in the sensor information of the storage unit 27. When registering the security sensor 7, the registration unit 256 uses the security sensor 7 as a communication target device on condition that a radio signal is received from the security sensor 7 with a received electric field strength equal to or higher than a predetermined second reference strength. Register as The second reference strength is a reception strength that serves as a reference for registering as a communication target device, and is set to a value higher than the reference strength in order to determine radio quality. This second reference strength can also be set as appropriate according to the communication environment.

  As illustrated in FIG. 2, the center device 3 includes a communication unit 30, a display unit 31, an operation unit 32, a control unit 33, and a storage unit 34. For example, the center device 3 includes a server device, a personal computer, and the like, and is operated by a controller. The mobile terminal 5 includes a communication unit 50 and a touch panel 51. For example, the portable terminal 5 is configured by a smartphone or the like and is operated by a coping person.

  The operation of the security service support system 1 configured as described above will be described with reference to the flowchart of FIG.

  First, it is determined whether or not the security device 2 has received a radio signal from the security sensor 7 (S1). If no wireless signal has been received from the security sensor 7, is there a security sensor 7 that has not received the wireless signal for a predetermined time (a time equal to or longer than a regular communication interval (1 hour), for example, 2 hours). Is determined (S2). When there is a security sensor 7 that has not received a radio signal for a predetermined time or more, it is determined that the security sensor 7 is malfunctioning (S3), and an instrument malfunction signal is transmitted to the center device 3 (S4). A message to that effect is output to the surroundings (S5).

  On the other hand, when a radio signal is received from the security sensor 7 as a communication signal or a detection signal, the received electric field strength and the collision frequency of the radio signal are confirmed (S6), and a predetermined reference (second for registering as a communication target). It is determined whether or not it is within an allowable range in comparison with a reference intensity that is a threshold lower than the reference intensity and a reference frequency for determining signal collision (S7). In this case, if the received electric field strength is equal to or lower than the predetermined reference strength or the collision frequency is equal to or higher than the predetermined reference frequency, it is determined that the received electric field strength is not within the allowable range. If it is not within the allowable range, it is determined that the security sensor 7 is in a low wireless quality state (there is a wireless environment change) (S8), and a wireless environment change signal is transmitted to the center device 3 (S9). The wireless environment change flag for the sensor 7 is turned on (S10). The radio environment change flag is a flag indicating whether or not there is a radio environment change, and is stored in the storage unit 24. The surrounding notification unit 254 outputs a notification to the surroundings based on conditions such as the passage of a predetermined time for the security sensor 7 for which the wireless environment change flag is turned on.

  If the received electric field strength of the radio signal received from the security sensor 7 is larger than the predetermined reference strength and the collision frequency is lower than the predetermined reference frequency, it is determined that the value is within the allowable range (S7). In this case, if the wireless environment change flag for the security sensor 7 is turned on, the wireless environment change flag is turned off (S11).

  According to such a security service support system 1 of the present embodiment, if there is a security sensor 7 that cannot receive a radio signal for a predetermined time or more, the security device 2 determines that the device is abnormal and causes the center device 3 to Send an abnormal signal. Then, a notification that the device is abnormal is output to the surroundings. On the other hand, the security device 2 can receive a radio signal, but if the received electric field strength is low or the collision frequency is high, the security device 2 determines that the radio quality is low and transmits a radio environment change signal to the center device 3. The fact that the wireless quality is low is not notified to the surroundings.

  Thereby, when a device abnormality occurs in the security sensor 7, a notification to the center and a notification to the surroundings can be performed immediately, and a prompt reporting property when a device abnormality occurs can be ensured. In addition, when the security sensor 7 is in a low wireless quality state, the center device 3 is notified before the wireless communication is hindered, so the center can instruct the counselor to propose a wireless environment improvement. It is possible to prevent the wireless signal from being received from the security sensor 7 due to the deterioration of the wireless quality. That is, it is possible to prevent and maintain device abnormality alerts.

  In addition, when an abnormality occurs in the security sensor 7, the center grasps whether the cause of the abnormality is a sudden device abnormality that does not pass through a low wireless quality state or a device abnormality after a wireless quality low state. Therefore, an appropriate coping instruction can be sent from the center to the coping staff. If it is the former, it is possible to grasp the possibility of a cause such as equipment failure, and if it is the latter, it is possible to grasp the possibility of a cause such as a change in the wireless communication environment in the monitored area. In other words, regardless of the personal cause separation skills such as the experience and intuition of the counselor, it is possible to systematize the cause and uniformize the quality (value) of coping by the counselor.

  Further, in the present embodiment, even when the security sensor 7 is in a low wireless quality state, when a predetermined time elapses, a notification is output to the surroundings that the wireless quality is in a low state. As a result, the user who is the user of the security device 2 in the monitoring area can know that the wireless quality is in a low state, and the user can take appropriate measures to improve the wireless environment. It is possible to prevent the wireless signal from being received from the security sensor 7 due to the decrease. That is, it is possible to prevent and maintain device abnormality alerts.

  Further, in this embodiment, even if the security sensor 7 is in a low wireless quality state, if it is detected that the counselor has started the inspection of the security device 2, a notification is output to the surroundings that the wireless quality is low. To do. As a result, the coordinator who came to the inspection of the security device 2 can grasp that the wireless quality is still in a low state. It is possible to prevent a wireless signal from being received from the security sensor 7 in advance. That is, it is possible to prevent and maintain device abnormality alerts.

  Further, in the present embodiment, when a radio signal is received from the security sensor 7 with a received electric field strength equal to or higher than a second reference strength (for example, a reference at the time of installation) higher than the reference strength used for the determination of the low wireless quality state, the crime prevention The sensor 7 is registered as a communication target device. As a result, it is possible to secure communication quality at a high radio wave intensity when the security sensor 7 is installed, and to reduce the risk that a wireless signal cannot be received from the security sensor 7 due to a decrease in wireless quality.

  The embodiments of the present invention have been described above by way of example, but the scope of the present invention is not limited to these embodiments, and can be changed or modified according to the purpose within the scope of the claims. is there.

  For example, as shown in FIG. 4, the center device 3 may be provided with a wireless quality determination unit 330. In this case, as shown in the sequence diagram of FIG. 5, the security device 2 determines that there is a device abnormality if there is a security sensor 7 that cannot receive a wireless signal for a predetermined time that is equal to or longer than a regular communication interval ( In step S20, a device abnormality signal is transmitted to the center device 3 (S21), and a notification that the device is abnormal is output to the surroundings (S22). Upon receiving the device abnormality signal, the center device 3 transmits a request signal to the security device 2 (S23), and acquires communication log information with the security sensor 7 (S24). Based on the acquired communication log information, if the received electric field strength is lower than the reference strength or the collision frequency is higher than the reference frequency, it is determined that the wireless quality is low (the wireless environment has changed) (S25).

  Thereby, when a device abnormality occurs in the security sensor 7, a notification to the center and a notification to the surroundings can be performed immediately, and a prompt reporting property when a device abnormality occurs can be ensured. In addition, the center device 3 can acquire communication log information with the security sensor 7 from the security device 2 and determine whether the security sensor 7 is in a low wireless quality state. It is possible to instruct improvement proposals, and it is possible to prevent the occurrence of frequent failure to receive a radio signal from the security sensor 7 due to a decrease in radio quality. That is, it is possible to prevent and maintain frequent occurrence of device abnormality reports.

  In addition, when an abnormality occurs in the security sensor 7, it is possible for the center to grasp whether the cause of the abnormality is a device abnormality or a low wireless quality state. Can send. In other words, regardless of the personal cause separation skills such as the experience and intuition of the counselor, it is possible to systematize the cause and uniformize the quality (value) of coping by the counselor.

  In the above example, the case where both the received electric field strength and the collision frequency are used as a criterion for determining whether or not the wireless transmitter (security sensor 7) is in a low wireless quality state has been described. Is not limited to this. That is, either the received electric field strength or the collision frequency may be used as a criterion for determining whether or not the wireless transmitter (security sensor 7) is in a low wireless quality state.

  As described above, the security device according to the present invention can ensure prompt reporting when a device abnormality occurs, and systematize the cause of the device abnormality, and uniformize the quality of countermeasures by the coping personnel. It is useful because it can be used for security of facilities and residences.

1 Security Service Support System 2 Security Device 3 Center Device 4 Network 5 Mobile Terminal 6 Base Station 7 Security Sensor (Wireless Transmitter)
DESCRIPTION OF SYMBOLS 20 Operation part 21 Communication part 22 Display part 23 Input / output part 24 Storage part 25 Control part 250 Mode setting part 251 Abnormality determination part 252 Radio quality determination part 253 Center notification part 254 Surrounding notification part 255 Action detection part 256 Registration part 30 Communication part 31 Display unit 32 Operation unit 33 Control unit 34 Storage unit 330 Wireless quality determination unit

Claims (5)

A security device for receiving a radio signal from a radio transmitter installed in a monitoring area,
When not receiving a radio signal from the radio transmitter for a predetermined time or more, an abnormality determination unit that determines that the radio transmitter is an apparatus abnormality;
When the received electric field strength of the radio signal from the radio transmitter is below the reference strength or the collision frequency of the radio signal from the radio transmitter is above the reference frequency, it is determined that the radio transmitter is in a low radio quality state A wireless quality determination unit to
When the abnormality determination unit determines that the device is abnormal, the wireless transmitter transmits a device abnormality signal indicating that the device is abnormal to the remote center device, and the wireless quality determination unit If it is determined that the wireless quality is low, a center reporting unit that transmits a wireless environment change signal indicating that the wireless transmitter is in the wireless quality low state to the center device;
When the abnormality determining unit determines that the device is abnormal, the wireless transmitter notifies and outputs that the device is abnormal, and the wireless quality determining unit determines that the wireless quality is low. A surrounding notification unit that does not notify that the wireless transmitter is in the low wireless quality state, and
A security device comprising:   The surrounding notification unit notifies and outputs that the wireless transmitter is in a low wireless quality state when a predetermined time has elapsed after transmitting the wireless environment change signal to the center device. Security device according to. In addition, a coping detection unit that detects that the coping person has started the inspection of the monitoring area,
After the surrounding notification unit transmits the wireless environment change signal to the center device, the wireless transmitter is in a low wireless quality state when the countermeasure detection unit detects the start of the inspection. The security device according to claim 1 or 2, which outputs a notification.   And a registration unit for registering the wireless transmitter as a communication target device on condition that the wireless signal is received from the wireless transmitter with a received electric field strength equal to or higher than a second reference strength higher than the reference strength. The security device according to any one of claims 1 to 3. A security service support system comprising a security device that receives a radio signal from a radio transmitter installed in a monitoring area, and a remote center device that communicates with the security device,
The security device
A storage unit for storing communication log information with the wireless transmitter;
When not receiving a radio signal from the radio transmitter for a predetermined time or more, an abnormality determination unit that determines that the radio transmitter is an apparatus abnormality;
When the abnormality determination unit determines that the device is abnormal, a center notification unit that transmits a device abnormality signal indicating that the wireless transmitter is the device abnormality to the center device;
With
The center device is
Upon receipt of the device abnormality signal, a request signal for requesting communication log information with the wireless transmitter is transmitted to the security device, and communication log acquisition is performed for acquiring communication log information with the wireless transmitter from the security device. And
Based on the communication log information with the wireless transmitter acquired from the security device, the received electric field strength of the wireless signal from the wireless transmitter is below the reference strength or the collision frequency of the wireless signal from the wireless transmitter is the reference frequency In the case of the above, a wireless quality determination unit that determines that the wireless transmitter is in a low wireless quality state,
Security service support system characterized by comprising

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