JP2009301450A - Monitoring system using state detection terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a monitoring system for capturing surely a state of a monitoring objective person and an area with the monitoring objective person existing therein. <P>SOLUTION: A gate device imparts area information indicating an area with a state detecting terminal 1 existing therein, to the state detecting terminal 1. The state detecting terminal 1 holds the area information. The state detecting terminal 1 transmits the held area information to a radio base station 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a monitoring system including a state detection terminal that is carried by a monitoring target person and detects the state of the monitoring target person, and a radio base station that receives the information detected by the state detection terminal.

A network surveillance camera system using a surveillance camera is known as a system capable of ensuring human safety by monitoring the state of a person. In this system, a plurality of cameras are connected to a network, and image data captured by the cameras and digitized by JPEG or the like is distributed over the network. The image recording device collects image data on the network and records it in the device. An image monitor device connected to the network displays an image of a camera or an image recording device.
Japanese Patent Laid-Open No. 2002-158995

  However, in a system using a surveillance camera, it is necessary that someone is watching the video of the surveillance monitor, and there are cases where the supervisor overlooks the abnormality or the discovery of the abnormality is delayed. In addition, it is impossible to capture abnormalities in the blind spots of the cameras, and a large number of cameras are required to reduce the blind spots.

  An object of the present invention is to provide a monitoring system capable of reliably capturing the state of the monitoring target person and the area where the monitoring target person is present.

The monitoring system of the present invention is a monitoring system comprising a state detection terminal that is carried by a monitoring target person and detects the state of the monitoring target person, and a radio base station that receives the information detected by the state detection terminal. An area information giving means for giving the state detection terminal area information indicating an area where the state detection terminal exists, a holding means for holding the area information given by the area information giving means in the state detection terminal, and the holding And area information transmission means for transmitting the area information held by the means to the radio base station.
According to this monitoring system, the area information indicating the area where the state detection terminal exists is given to the state detection terminal, and the area information is transmitted from the state detection terminal to the radio base station. And the area where the monitoring subject is present can be surely captured.
You may provide the alerting | reporting means which selectively alert | reports in the area which the said area information which the said radio base station received has shown.

  According to the monitoring system of the present invention, the state detection terminal is provided with area information indicating an area where the state detection terminal exists, and the area information is transmitted from the state detection terminal to the radio base station. It is possible to reliably grasp the state and the area where the monitoring target person is present.

  Hereinafter, an embodiment of a monitoring system according to the present invention will be described with reference to FIGS.

  FIG. 1 is a block diagram showing a configuration example in which the state detection terminal of the present invention is applied to a monitoring system for ensuring the safety of plant workers.

  As shown in FIG. 1, the monitoring system includes state detection terminals 1, 1,... Carried by plant workers, wireless base stations 2, 2,. In addition to temporarily storing information transmitted from the base stations 2, 2,..., The state monitoring controller 3 as information processing means for executing various processes for state monitoring, and the state monitoring controller 3 The system management server 4 that captures the above information, and state monitoring monitors 5, 5,... That display various information provided by the system management server 4.

  As shown in FIG. 1, the radio base stations 2, 2,..., The state monitoring controller 3, the system management server 4, and the state monitoring monitors 5, 5,. .

  The state detection terminal 1 is used by being attached to an operator or an operator's clothes or the like such as an operator's waist.

  FIG. 2 is a block diagram showing the configuration of the state detection terminal 1.

  As shown in FIG. 2, the state detection terminal 1 includes a CPU and executes wireless data transmission / reception between the wireless base station 2 and a determination unit 11 configured to execute a predetermined determination process described later. A wireless circuit 12 serving as area information transmitting means, an X-axis acceleration sensor 13x that detects accelerations in the X-axis, Y-axis, and Z-axis directions, a Y-axis acceleration sensor 13y, and a Z-axis acceleration sensor 13z, respectively, are wireless communication destinations. A communication destination selection unit 15 for selecting the radio base station 2, an area information storage unit 16 as a holding means for storing area information indicating an area where the state detection terminal 1 is currently located, and an alarm to the outside And an alarm device 17 comprising a buzzer or the like.

  The communication destination selection unit 15 tries communication with the radio base stations 2, 2,... Via the radio circuit 12, and based on the response data, the radio base station currently in the best communication state. Station 2 is selected as the wireless communication destination.

  The determination unit 11 performs a calculation based on the X-axis, Y-axis, and Z-axis acceleration data obtained from the X-axis acceleration sensor 13x, the Y-axis acceleration sensor 13y, and the Z-axis acceleration sensor 13z, and determines the orientation of the state detection terminal 1 and Based on the movement, it is determined whether the worker is walking, standing still, or falling.

  As described above, the area information storage unit 16 stores area information indicating the current position of the state detection terminal 1. This area information is updated in real time according to the movement of the state terminal device 1.

  As the area information means for causing the state detection terminal 1 to acquire the area information, for example, various gate devices can be used. In this case, a gate device is installed at the entrance of each area, and area information can be acquired by communication between the gate device and the radio circuit 12 when an operator passes through the gate device.

  Further, for example, when a system that manages the positions of workers entering and exiting each area using an IC card or a magnetic card is used, the position information of the workers acquired by the system is transferred to the state terminal device 1. This may be stored in the area information storage unit 16 as area information. As a method for recognizing the worker's position in the gate device, a vein authentication method, a retina authentication method, a mechanical key, a vocal cord authentication, or the like can be applied. In addition, the method for acquiring and updating the area information is not limited.

  The wireless circuit 12 adds the area information and the identifier of the state detection terminal to the determination result of the state in the determination unit 11, and uses this as state information to transmit the wireless base station that is currently the wireless communication destination from the antenna 12a. Transmit continuously to station 2.

  FIG. 3 is a block diagram showing a configuration of the radio base station 2.

  As shown in FIG. 3, the wireless base station 2 includes a CPU and is configured to include a CPU, and executes a predetermined information process, which will be described later, and a wireless circuit 22 that performs wireless communication between the state detection terminal 1. And a network interface 23 for executing communication via the communication network 7. The radio base station 2 is appropriately arranged in the plant so as to cover the monitoring target area.

  In addition, an alarm device 2 a is connected to the information processing unit 21 of the radio base station 2 via a contact output of the radio base station 2. As the alarm device 2a, for example, a patrol light or a buzzer is used.

  The wireless circuit 22 performs wireless communication with the state detection terminal 1 via the antenna 22a. When receiving the data from the communication destination selection unit 15 of the state detection terminal 1, the wireless circuit 22 returns the response data to the state detection terminal 1. In addition, the radio circuit 22 sequentially receives the state information transmitted from the state detection terminal 1.

  When the state information is received by the wireless circuit 22, the information processing unit 21 adds information for specifying its own wireless base station to the state information. Further, these pieces of information are transmitted as new state information to the state monitoring controller 3 via the network interface 23.

  The state monitoring controller 3 determines the state of the worker based on the state information received from the radio base station 2. When it is determined that the worker's state is abnormal, the system management server 4 is notified of the occurrence of the abnormality via the network interface 32. At the same time, the state monitoring controller 3 notifies the occurrence of an alarm by the alarm device 3a and notifies the occurrence of abnormality to the radio base station 2 associated with the area indicated by the area information via the network interface 32. To do. In this case, the radio base station 2 receives the notification via the network interface 23, and the information processing unit 21 notifies the alarm via the alarm device 2a.

  Thus, when it is determined that the worker's state is abnormal, an alarm is notified by both the state monitoring controller 3 and the radio base station 2. For example, when the state monitoring controller 3 is set in a monitoring room or the like, the alarm device 3a can notify the monitor directly of the alarm. In addition, by selectively notifying the occurrence of an abnormality to the radio base station 2 that has received the status information, it is possible to notify the occurrence of the abnormality to workers near the abnormality occurrence site, It is possible to notify quickly in units of two stations.

  Further, since the radio base station 2 that issues the report is the radio base station 2 associated with the area indicated in the area information, that is, the radio base station 2 in the area where the abnormality has occurred, in which area the abnormality has occurred It is possible to quickly grasp whether it has been done on site.

  FIG. 4 is a diagram illustrating an installation position of the radio base station.

  In the example of FIG. 4, the work area is divided into each floor, and the radio base station 2 is set on each floor. A gate device 8 is provided at the entrance of each floor. When the worker passes through the gate device 8, area information indicating the floor is given from the gate device 6 to the state detection terminal 1 by wireless communication between the gate device 8 and the wireless circuit 12. The area information is updated. In addition, as an area information provision means, you may determine a floor etc. based on the present height of a state detection terminal using the atmospheric | air pressure sensor provided in the state detection terminal.

  For example, as shown in FIG. 4, when the worker 10 falls on the floor 92 on the second floor, the wireless base station 2 </ b> A installed on the floor 91 on the first floor may communicate with the state detection terminal 1 depending on the communication situation. It may become. However, in the above-described embodiment, the area where the worker 10 is located can be determined based on the area information held by the state detection terminal 1 in such a case, so that the area is installed on the floor 92 on the second floor instead of the radio base station 2A. It is possible to make a report from the alarm device 2a of the radio base stations 2B and 2C. For this reason, when the worker 10 is rescued, it is only necessary to search for the floor on which the report has been made, and the rescue does not take time.

  In FIG. 4, the floors arranged above and below are defined as each area, but the area defining method is arbitrary.

  In the above embodiment, the alarm device 2a provided in the radio base station 2 is exemplified as the reporting unit. However, the reporting unit may be provided separately from the radio base station.

  As described above, according to the monitoring system to which the state detection terminal of the present embodiment is applied, the operator's state is monitored by radio, so the monitoring range is widened and the blind spot of monitoring is reduced. Further, since the status information is transmitted from the status detection terminal carried by the worker, the monitor can easily monitor the occurrence of abnormality. Furthermore, since the position of the worker can be specified by the area information, the current position of the worker can be easily grasped. There is no need for a special system for determining the current position of the worker.

  As described above, according to the monitoring system of the present invention, the state detection terminal is provided with area information indicating the area where the state detection terminal exists, and the area information is transmitted from the state detection terminal to the radio base station. Therefore, it is possible to reliably grasp the state of the monitoring target person and the area where the monitoring target person is present.

  The scope of application of the present invention is not limited to the above embodiment. The present invention is widely applied to a monitoring system including a state detection terminal that is carried by a monitoring target person and detects the state of the monitoring target person, and a radio base station that receives the information detected by the state detection terminal. Can do.

The block diagram which shows the structural example which applied the state detection terminal of this invention to the monitoring system for aiming at the safety of the worker of a plant. The block diagram which shows the structure of a state detection terminal. The block diagram which shows the structure of a wireless base station. The figure which illustrates the installation position of a wireless base station.

Explanation of symbols

1 State detection terminal 8 Gate device (area information giving means)
12 Radio circuit (area information transmission means)
16 Area information storage (holding means)

Claims (2)

In a monitoring system comprising a state detection terminal that is carried by a monitoring subject and detects the state of the monitoring subject, and a radio base station that receives the information detected by the state detection terminal,
Area information giving means for giving the state detection terminal area information indicating an area where the state detection terminal exists;
Holding means for causing the state detection terminal to hold the area information given by the area information giving means;
Area information transmitting means for transmitting the area information held by the holding means to the radio base station;
A monitoring system comprising: The monitoring system according to claim 1, further comprising a reporting unit that selectively reports in an area indicated by the area information received by the radio base station.

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