JP2005216052A - Monitor system and its program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a monitor system for increasing the reliability of the notification of an abnormal state notified from each sensor terminal unit posterior to the start of a monitor operation. <P>SOLUTION: This monitor system is provided with a plurality of sensor terminal units 1 and 2 for monitoring a normal state or an abnormal state and a main device 3 for communicating with the sensor terminal units. The sensor terminal units 1 and 2 and the main device 3 are respectively provided with information communicating means 7, 8, 25 and 26 for transmitting or receiving information related with the normal state or the abnormal state, a monitor operation start signal and a monitor operation end signal from the main device 3 and a response signal corresponding to the monitor operation start signal and the monitor operation end signal. At the time of receiving the monitor operation start signal from the main device 3, the sensor terminal units 1 and 2 supply a power to a sensor circuit 5, and wait for the transmission of the information related with the abnormal state to the main device 3 until the lapse of a fixed time after the power supply to the sensor circuit 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a surveillance system for crime prevention and a program therefor.

  Conventionally, a sensor terminal of this type of monitoring system is a battery-driven type that does not require a power line in order to be attached to a window sash, an upper part of a door, etc. to improve the beauty and workability. The sensor terminal is always in operation, and when the sensor circuit detects something, it notifies the main unit by radio waves. If the main unit is in monitoring operation, it issues an alarm and notifies the outside by telephone, but it is in monitoring operation. If not, the main device did nothing even when notified by radio waves from the sensor terminal (see, for example, Patent Document 1).

  FIG. 2 shows a conventional monitoring system described in Patent Document 1. As shown in FIG. As shown in FIG. 2, the transmission unit 36 transmits radio waves with signals from the sensor terminal 31 that detects various unsteady states, the reception unit 42 receives the radio waves, and the signals demodulated by the reception unit 42 are received. After decoding, the main device 46 issues an alarm.

  In this conventional configuration, the sensor circuit in each sensor terminal is always in operation even when the monitoring operation is not being performed, and the use efficiency of the battery is wasteful.

  On the other hand, as a method for increasing the battery usage efficiency, the power supply to the sensor circuit in each sensor terminal is stopped when the monitoring operation is not performed, and the sensor circuit in each sensor terminal is performed when the monitoring operation is performed. There is a method of supplying power to In this case, in order to tell each sensor terminal device whether or not the monitoring operation is being performed from the main device, the main device has a transmitting unit other than the radio wave receiving unit, and each sensor terminal unit has a receiving unit other than the transmitting unit. Must be provided respectively.

  Each sensor terminal stops supplying power to the sensor circuit unless an instruction to start the monitoring operation is received from the main device by wireless radio wave. When the instruction to start the monitoring operation is received from the main device, the power is supplied to the sensor circuit. First, when an instruction to end the monitoring operation is received, power supply to the sensor circuit is stopped again.

As described above, it is conceivable to stop the power supply to the sensor circuit when the monitoring operation is not performed and to supply the power to the sensor circuit when the monitoring operation is performed.
Japanese Utility Model Publication No. 57-123594

  However, in the case of using the human body detection sensor using the infrared pyroelectric element, the amplifier circuit that amplifies the signal of the infrared pyroelectric element does not stabilize immediately even when the power supply is started from the power supply stop state. For this reason, when the monitoring operation start is set when the user goes out, each sensor terminal receives a message instructing the start of the monitoring operation from the main device, and each sensor terminal starts supplying power to the sensor circuit. There is a problem that the circuit is not stabilized immediately, and the monitoring system cannot immediately start the monitoring operation.

  The present invention solves the above-described conventional problems, and an object thereof is to provide a monitoring system and a program therefor that improve the reliability of unsteady state notification notified from each sensor terminal after starting a monitoring operation. And

  In order to solve the above-mentioned conventional problems, the monitoring system and the program thereof according to the present invention are non-stationary until a certain time elapses after the power is supplied to the sensor circuit of each sensor terminal or until the sensor circuit becomes stable. Information regarding the state is not transmitted to the main device.

  As a result, each sensor terminal transmits the information on the unsteady state to the main device only after the sensor circuit is stabilized, and the notification of the unsteady state notified from each sensor terminal after starting the monitoring operation. Can improve the reliability.

  The monitoring system and the program of the present invention can improve the reliability of the notification from each sensor terminal after the user starts the monitoring operation.

  The first invention has one or a plurality of sensor terminals that monitor a steady state or an unsteady state, and a main device that can communicate with the sensor terminals. The sensor terminal and the main device include: Information communication means for transmitting or receiving information on the steady state or the unsteady state, the monitoring operation start signal and the monitoring operation end signal from the main unit, and the response signal for the monitoring operation start signal and the monitoring operation end signal, respectively. When the sensor terminal is not performing a monitoring operation, the power of the sensor circuit is cut off. When the sensor terminal receives a monitoring operation start signal from the main device, the sensor terminal is energized to supply power to the sensor circuit. Each sensor terminal is a sensor system that does not transmit information about the unsteady state to the main unit until a certain period of time elapses after the power is turned on. It is only after a certain period of time that the road has stabilized that information on the unsteady state is transmitted to the main unit, and the reliability of the unsteady state notification sent from each sensor terminal after starting the monitoring operation is increased. Can do.

  The second invention has one or a plurality of sensor terminals that monitor a steady state or an unsteady state, and a main device that can communicate with the sensor terminals, and the sensor terminal and the main device include: Information communication means for transmitting or receiving information on the steady state or the unsteady state, the monitoring operation start signal and the monitoring operation end signal from the main unit, and the response signal for the monitoring operation start signal and the monitoring operation end signal, respectively. When the sensor terminal is not performing a monitoring operation, the power of the sensor circuit is cut off. When the sensor terminal receives a monitoring operation start signal from the main device, the sensor terminal is energized to supply power to the sensor circuit. Each sensor terminal unit is configured to be a monitoring system that does not transmit information about the unsteady state to the main unit until the sensor circuit is stabilized after power is turned on. Only when the sensor circuit is stable, the unsteady state information is transmitted to the main device, and the reliability of the unsteady state notification notified from each sensor terminal after starting the monitoring operation can be improved. .

  According to a third aspect of the invention, in particular, in the first or second aspect of the invention, the sensor terminal transmits to the main unit that the information regarding the unsteady state can be transmitted to the main unit. Reliability is improved in determining the unsteady state notification sent from the vessel.

  According to a fourth aspect of the invention, in particular, in the second aspect of the invention, the sensor terminal transmits an abnormality of the sensor circuit to the main device when the sensor circuit is not stable for a certain period of time, so that the user You can know quickly.

  In particular, in the fifth invention, in any one of the first to fourth inventions, when the sensor circuit is energized and the information on the unsteady state can be transmitted to the main device, the main device or the sensor terminal By notifying that the monitoring operation is being performed, the user can be notified that the monitoring system has started to operate normally.

  Since the sixth invention is a program, in particular, in any one of the first to fifth inventions, a program for realizing at least a part of the functions in the monitoring system by a computer. It is possible to easily realize at least a part of the monitoring system by cooperating hardware resources such as a computer and a server. Also, by storing the program in a storage medium or distributing the program using a communication line, the program can be easily distributed or installed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 shows a monitoring system according to Embodiment 1 of the present invention.

  As shown in the figure, the monitoring system according to the present embodiment is attached to a window or door frame of a house, and is installed in a house with a plurality of sensor terminals 1 and 2 that monitor a steady state or an unsteady state. It has a main device 3 that can communicate with the terminals 1 and 2. The sensor terminals 1 and 2 operate on batteries and can communicate with the main device 3 using radio waves. The main device 3 is connected to a public telephone line 27 (communication network) and can make a call to an external telephone 28. The number of sensor terminals that can be connected to the main device 3 by radio waves is not limited to two, and the number can be freely increased as necessary.

  Since the sensor terminals 1 and 2 have the same internal configuration, the sensor terminal 1 will be described as a representative.

  The sensor terminal 1 includes a control unit 4, a sensor circuit 5, a pyroelectric sensor element 6 that receives infrared rays emitted from a human body, a radio wave transmission unit 7, a radio wave reception unit 8, and a sensor terminal. The power supply unit 9 that supplies power to each internal block, the switch unit 10 that is controlled to open and close by the control unit 4 and controls the supply of power to the sensor circuit 5, and the power supply to the sensor circuit 5 And a timer 11 whose time counting operation is controlled by the control unit 4.

  The pyroelectric sensor element 6 outputs a minute voltage signal when it receives infrared rays, so that the sensor circuit 5 amplifies the minute voltage signal and transmits it to the control unit 4.

  The radio wave transmission unit 7 and the reception unit 8 also include information on the steady state or the unsteady state of the sensor terminal 1, the monitoring operation start signal and the monitoring operation end signal from the main device 3, and the monitoring operation start signal and monitoring. An information communication unit is configured to transmit or receive a response signal for the operation end signal.

  Further, when the sensor terminal 1 is not performing a monitoring operation, the power of the sensor circuit 5 is cut off by the switch unit 10, and when the monitoring operation start signal is received from the main device 3, the switch unit 10 is closed. 5 is energized. Then, after the power is supplied to the sensor circuit 5, the transmission of information related to the unsteady state to the main apparatus 3 is waited until a certain time (about 30 seconds) by the timer 11 elapses.

  Next, although it is the structure of the main apparatus 3, a warning sound is emitted when the control part 20, the operation part 21 for a user to start or end a monitoring operation | movement, and the unsteady state of the sensor terminal device 1 are detected. An alarm unit 22, a notification unit 23 for making a call to an external telephone 28 when an unsteady state is detected, and notifying the outside of the situation, and a power supply unit supplying power to each block inside the main unit 3 24, a radio wave transmission unit 25, and a radio wave reception unit 26.

  The wireless radio wave transmission unit 25 and the reception unit 26 include information on the steady state or the unsteady state of the sensor terminal 1, a monitoring operation start signal and a monitoring operation end signal to the sensor terminal 1, and this monitoring operation start signal and monitoring. An information communication unit is configured to transmit or receive a response signal for the operation end signal.

  About the monitoring system comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, in order to suppress battery consumption, when the alert operation is not being performed, the switch unit 10 of the sensor terminals 1 and 2 is open, and the sensor circuit 5 is not supplied with power. Next, when the start of the monitoring operation is requested by the user operating the operation unit 21 of the main device 3, the main device 3 instructs the sensor terminals 1 and 2 to start the monitoring operation using the transmission unit 25. To do. As a result, the control unit 4 of each of the sensor terminals 1 and 2 closes the switch unit 10 and starts supplying power to the sensor circuit 5. In addition, the timer 11 starts a time measuring operation.

  Immediately after the power supply, the sensor circuit 5 is not yet stable, and high level and low level signals repeatedly appear in the output of the sensor circuit 5, and an unstable signal is transmitted to the control unit 4. After about 30 seconds, the sensor circuit 5 becomes stable and the output always keeps a high level. For this reason, the control unit 4 prepares to detect the unsteady state by supplying power to the sensor circuit 5 in response to a monitoring operation start instruction from the main device 3.

  However, immediately after looking at the output state of the sensor circuit 5, the main device 3 is not notified that the unsteady state has been detected when the level is low, and the time measured value of the timer 11 is the specified time value (about 30 seconds). The output of the sensor circuit 5 is viewed for the first time beyond this. The time until the sensor circuit 5 is stabilized differs depending on each of the sensor terminals 1 and 2 due to variations in circuit components. However, the stability time of each sensor terminal is evaluated at the time of shipment from the factory, and according to each sensor terminal. It can be set to the specified time value.

  After the time value of the timer 11 exceeds a specified time value, for example, when a person crosses in front of the sensor terminal 1, the pyroelectric sensor element 6 receives infrared rays emitted from the human body and outputs a minute voltage signal. The sensor circuit 5 amplifies the voltage signal change of the pyroelectric sensor element 6 and sets the output to a low level when the amplitude is large. With this low level signal, the control unit 4 transmits a notification that the unsteady state has been detected to the main apparatus 3 by radio waves. The main device 3 drives the alarm unit 22 to emit an alarm sound (intimidating sound) and makes a phone call to the telephone number 8 registered in advance by the notification unit 23. Tell that you have detected.

  As described above, in this embodiment, the sensor circuit 5 is unstable immediately after the start of the monitoring operation is instructed and the power supply to the sensor circuit 5 is started. Since the output of the sensor circuit 5 is ignored and waits until the predetermined time exceeds the predetermined time, the erroneous notification of the unsteady state detection is not sent to the main device 3. That is, it is possible to improve the reliability of the unsteady state notification notified from each sensor terminal after starting the monitoring operation.

  Further, in this embodiment, when the start of the monitoring operation is instructed, the timer 11 starts the time counting operation, and the operation of ignoring the output of the sensor circuit 5 and waiting until the time measured value of the timer 11 exceeds a certain value. However, instead of this, the control unit 4 confirms the output value of the sensor circuit 5 immediately after the start of energization to the sensor circuit 5 according to the start instruction of the monitoring operation, and uses the timer 11 to measure the time during which the high level has been maintained. If the high level continues for a certain time or longer, the sensor circuit 5 is considered to be stable. After that, when the output of the sensor circuit 5 becomes low level, a notification that an unsteady state has been detected may be sent to the main device 3. . In this case, it is not necessary to set a specified time value from the start of power supply to the sensor circuit 5 in view of variations in parts for each sensor terminal, so that the stabilization wait time of the sensor circuit 5 immediately after the start of the monitoring operation is not required. Can be efficient.

  In addition, by transmitting to the main device 3 that information regarding the unsteady state can be transmitted to the main device 3, it is determined when each of the sensor terminals 1 and 2 has actually shifted to the monitoring operation. In addition, since it is possible to find a sensor terminal that has not shifted to the monitoring operation, the reliability is improved in determining the notification of the unsteady state notified from each sensor terminal.

  In addition, if the sensor circuit 5 in the sensor terminals 1 and 2 is not stable for a certain time or longer, the user can quickly know the abnormality of the monitoring system by transmitting the abnormality of the sensor circuit 5 to the main device 3. it can. Of course, the abnormality may be notified by the sensor terminal device. For example, blinking an LED or sounding a notification sound.

  Further, the main device 3 or the sensor terminals 1 and 2 are provided with a display unit and a notification unit (not shown), and after the sensor circuit 5 is energized in the sensor terminal device, information on the unsteady state is sent to the main device 3. When the transmission is ready, the main device 3 or the sensor terminals 1 and 2 indicate that the monitoring operation is being performed or notify the user that the monitoring system has started to operate normally. be able to.

  Note that the means described in this embodiment causes hardware resources such as a CPU (or microcomputer), a RAM, a ROM, a storage / recording device, an electrical / information device including an I / O, a computer, a server, and the like to cooperate. You may implement with the form of a program. In the form of a program, new functions can be easily distributed / updated and installed by recording them on a recording medium such as magnetic media or optical media or distributing them via a communication line such as the Internet.

  As described above, since the monitoring system and the program according to the present invention can always receive a correct unsteady state report from the sensor terminal, it can also be applied to uses such as an elderly monitoring system for households where elderly people live.

The block diagram of the monitoring system in Embodiment 1 of this invention Block diagram of a conventional monitoring system

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 Sensor terminal 3 Main apparatus 4, 20 Control part 5 Sensor circuit 6 Pyroelectric sensor element 7, 25 Transmission part (information communication means)
8, 26 Receiver (information communication means)
9, 24 Power supply unit 10 Switch unit 11 Timer 21 Operation unit 22 Alarm unit 23 Notification unit

Claims (6)

One or a plurality of sensor terminals that monitor a steady state or an unsteady state, and a main device that can communicate with the sensor terminal, and the sensor terminal and the main device have a steady state or an unsteady state, respectively. Information communication means for transmitting or receiving information relating to a state, a monitoring operation start signal and a monitoring operation end signal from the main unit, and a response signal to the monitoring operation start signal and the monitoring operation end signal; When the monitoring operation is not performed, the power of the sensor circuit is cut off. When a monitoring operation start signal is received from the main device, the sensor circuit is energized, and the sensor circuit is energized for a certain period of time. A monitoring system that does not send information about unsteady states to the main unit until One or a plurality of sensor terminals that monitor a steady state or an unsteady state, and a main device that can communicate with the sensor terminal, and the sensor terminal and the main device have a steady state or an unsteady state, respectively. Information communication means for transmitting or receiving information relating to a state, a monitoring operation start signal and a monitoring operation end signal from the main unit, and a response signal to the monitoring operation start signal and the monitoring operation end signal; When the monitoring operation is not performed, the power of the sensor circuit is cut off, and when the monitoring operation start signal is received from the main device, the sensor circuit is energized, and the sensor circuit is energized and then the sensor A monitoring system that does not send information about the unsteady state to the main unit until the circuit is stable. The monitoring system according to claim 1, wherein the sensor terminal transmits to the main device that the information related to the unsteady state can be transmitted to the main device. The monitoring system according to claim 2, wherein the sensor terminal transmits an abnormality of the sensor circuit to the main device when the sensor circuit is not stable for a predetermined time or more. 5. When the sensor circuit is energized, the information regarding the unsteady state is transmitted to the main device, and the main device or the sensor terminal notifies that the monitoring operation is being performed. The monitoring system described in. The program which implement | achieves at least one part of the function in the monitoring system of any one of Claims 1-5 with a computer.

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