JP2010250573A - Monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To appropriately determine the state of a window and a crescent lock, based on a magnetic force level and by collecting sensor functions to a window opening and closing detection device, and carrying out centralized monitoring by giving a determination function to a monitoring panel. <P>SOLUTION: The window-opening and closing detection devices 10-1 to 10-4 wirelessly transmit a window-opening and closing detection signal, according to the opening and closing state of the window, and a lock-opening and closing detection signal, according to the opening and closing state of the crescent lock prepared on the window. The monitoring panel 11 determines and reports an open state or closed state of the window and the open state or closed state of the crescent lock, based on the detection signal transmitted wirelessly from the window-opening and closing detection device 10-1. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

The present invention relates to a monitoring system that centrally monitors a window opening / closing detection device that detects an opening / closing state of a window using a magnetic detection element such as a hall sensor using a monitoring panel.

  2. Description of the Related Art Conventionally, a wireless window opening / closing detection device that detects opening / closing of a window and transmits the alarm to a monitoring panel wirelessly is known. In such a window open / close detection device, the magnetic sensing element detects the magnetic force of the magnet placed on the window glass, and when the detected magnetic force decreases, it is determined that the window is open / closed and an abnormality detection signal is transmitted to the alarm panel wirelessly. Alarm. Also, the magnetic force of the magnet placed on the open / close lever of the crescent lock provided on the window is detected by another magnetic sensing element, and when the detected magnetic force decreases, it is determined that the crescent lock is open and an abnormal detection signal is transmitted wirelessly to the alarm panel. Alarm.

  The magnetic sensing elements used in conventional window opening and closing devices mainly use reed switches that mechanically turn on and off the contacts according to the strength of the magnetic force, but in recent years, the Hall effect has been used. Hall sensors that detect magnetic force are used.

  When the Hall sensor is used as a magnetic sensing element, the closer the magnet is to the detection target, the stronger the magnetic force passes through the Hall sensor, thereby obtaining a higher sensor output. In the opening / closing detection of the window based on the magnetic force level detected by the Hall sensor, a value lower by a predetermined ratio than the magnetic force level detected when the window is closed is set as a determination threshold. During monitoring, if the detected magnetic level falls below the determination threshold value, it is determined that the window is open, and a message indicating that the window is open is transmitted to the monitoring device to give an alarm.

When the magnetic level increases and exceeds the determination threshold after determining the opening of the window, it is determined that the window is closed and a message indicating the window is wirelessly transmitted to the monitoring device.

JP 2003-281636 A Japanese Patent Laid-Open No. 2001-14990

  However, in such a conventional window open / close detection device, the magnetic force level detected by the Hall sensor is taken into the processor and compared with a predetermined determination threshold value to determine whether the window is open / closed and the crescent lock is open / closed. However, since all the processing functions from the detection of the magnetic force level to the opening / closing judgment are incorporated in the window opening / closing detection device, there is a limit to reducing the size and weight, and the current consumption is also low. In addition, it is difficult for the processor to make a detailed determination of a state other than opening and closing based on the magnetic force level obtained as an analog signal.

The present invention provides a monitoring system that makes it possible to appropriately determine the state of a window and a lock based on a magnetic force level by concentrating sensor functions in a window open / close detection device and providing a determination function to a monitoring panel for centralized monitoring. The purpose is to do.

The monitoring system of the present invention includes:
A window opening / closing detection device that wirelessly transmits a detection signal based on a magnetic force level detected by a magnetic sensing element by arranging a magnet on a monitoring object of the window;
A monitoring board for determining and notifying the state of the monitoring object based on a detection signal wirelessly transmitted from the window opening / closing detection device and a threshold value calculated in advance and stored in the board;
It is characterized by having.

Here, the window opening / closing detection device wirelessly transmits a window opening / closing detection signal based on a magnetic force level according to the opening / closing state of the window and a lock opening / closing detection signal based on a magnetic force level according to the opening / closing state of the lock provided on the window,
The monitoring panel determines and notifies the open / closed state of the window and lock based on each detection signal wirelessly transmitted from the window open / close detection device in response to a transmission request to the window open / close detection device and a threshold value for each detection signal stored in advance. And a board.

  A detection signal received by requesting a detection signal from the window opening / closing detection device is registered by operating the operation unit provided on the monitoring panel, and a threshold value is calculated and registered based on the detection signal.

  The window opening / closing detection device includes a registration operation unit, measures the magnetic force level by operating the registration operation unit, and transmits a detection signal to the monitoring panel. The monitoring panel registers the received detection signal and based on the received detection signal. Calculate and register a threshold.

The monitoring panel calculates a first determination threshold that is lower by a predetermined ratio than the detection signal received from the window opening / closing detection device, registers the first determination threshold as a threshold for determining the state change of the monitored object, and is a second higher than the detection signal by a predetermined ratio. A judgment threshold is calculated and registered in order to discriminate fraudulent acts in which a strong magnetic force is applied from the outside,
When the detection signal received from the window opening / closing detection device in the monitoring state falls below the first determination threshold, the change of the monitoring object is determined, and when the magnetic force level increases above the second determination threshold, the fraud is determined. To do.

  Furthermore, when the detection signal of the window opening / closing detection device exceeds the threshold value, the monitoring panel identifies and alerts the window opening / closing detection device exceeding the threshold value and the type of the threshold value.

  The monitoring panel stores a detection signal and a threshold value for each of the plurality of window opening / closing detection devices, receives the detection signal for each window opening / closing detection device, and compares the detection signal with the threshold value to determine the state of the monitoring object.

Then, the transmission request is sequentially output to the window opening / closing detection device to receive the detection signal. When the received detection signal exceeds the threshold, the transmission ratio of the transmission request to the window opening / closing detection device exceeding the threshold is increased.

  According to the present invention, the window opening / closing detection device attached to the window is provided as a device integrated in a sensor function of detecting the magnetic force level and transmitting it to the monitoring panel, and processing such as a processor is not required because judgment processing is not required. The burden can be reduced to further reduce the size and weight, and the current consumption can be reduced and the battery life can be extended as much as the determination process is not required.

  The window open / closed state and crescent lock open / closed state are determined by collecting the magnetic level detected by the hall sensor of the window open / close detection device attached to the window with a monitoring panel and comparing it with a predetermined determination threshold. On the other hand, the process of determining and notifying the open / closed state of the window and the crescent lock is performed on a monitoring panel that is less restricted in terms of size and processing performance, so that an appropriate determination process can be performed at a higher speed.

  In addition, with regard to the determination threshold for determining opening / closing by comparison with the magnetic force level, the magnetic threshold level initially registered by the registration operation of the window opening / closing detection device is collected, and the determination threshold is obtained by calculation and registered in the table. In addition to reducing the processing burden on the open / close detection device side, even for centralized monitoring of the monitoring panel, an appropriate judgment threshold is set according to the actual installation status of the window open / close detection device, and accurate windows and crescent locks are installed. The open / close state can be determined.

  In addition, it is possible to easily update a plurality of window opening / closing detection devices collectively or individually by using a registration process provided in the monitoring panel or the window opening / closing detection device. .

In addition, a window opening / closing detection device exceeding the threshold value and the type of threshold value can be identified and alarmed on the monitoring panel, and a more detailed alarm can be performed.

Explanatory drawing which showed embodiment of the monitoring system by this invention Explanatory drawing which showed the installation state of the window opening / closing detection apparatus by this embodiment Assembly exploded view showing an embodiment of the window opening and closing detection device in the present embodiment Explanatory drawing which showed the relationship between a hall sensor and a magnet in the installation state of FIG. The block diagram which showed the circuit structure of the window opening / closing detection apparatus in this embodiment The graph which showed the AD conversion characteristic of the magnetic level detection signal by the AD conversion port of FIG. The graph which showed the relationship with respect to the distance of the magnetic force level acquired from the detection signal of the hall sensor for window opening / closing detection in this embodiment Explanatory drawing which showed the relationship between the crescent lock detection magnet and Hall sensor in this embodiment The graph which showed the relationship of the magnetic force level with respect to the distance of the Hall sensor for locking detection in this embodiment The block diagram which showed embodiment of the monitoring panel in this embodiment Explanatory drawing which showed the management information table provided in the monitoring board of FIG. Explanatory drawing showing the message format used in the monitoring panel of this embodiment Time chart showing the communication operation between the monitoring panel and the window opening / closing detection device of this embodiment The flowchart which showed the monitoring control processing by the monitoring panel of this embodiment The flowchart which showed the detail of the registration process in step S2 of FIG. The flowchart which showed the detail of the window opening / closing monitoring process in step S8 of FIG. The flowchart which showed the detail of the crescent lock monitoring process in step S10 of FIG. The flowchart which showed the window opening / closing detection process by the window opening / closing detection apparatus of this embodiment The flowchart which showed the detail of the crescent lock registration process in step S53 of FIG.

  FIG. 1 is an explanatory diagram showing an embodiment of a monitoring system according to the present invention for a house. In FIG. 1, window open / close detection devices 10-1 to 10-4 are installed in the windows provided in the kitchen, living room, main bedroom, and children's room of the house 1. For example, a monitoring panel 11 is installed in the kitchen. .

  When going out, such as going out, if the monitoring panel 11 is set to the answering mode with the window closed and the crescent lock closed, the monitoring panel of the window open / close detection devices 10-1 to 10-4 installed on the window 11 starts centralized monitoring.

  The monitoring panel 11 collects the magnetic force level detected by the hall sensor as a magnetic detection element from the window opening / closing detection devices 10-1 to 10-4 by periodic polling, and is provided for each window opening / closing detection device 10-1 to 10-4. When the window opening is determined by comparison with the registered determination threshold, an alarm is notified.

  FIG. 2 is an explanatory view showing an installation state of the window opening / closing detection device according to the present invention. In FIG. 2, the window opening / closing detection apparatus 10 of this embodiment is fixed to the vertical frame of the window sash 12a, 12b of the sliding window to be monitored by double-sided tape or screws.

  On the upper side of the window opening / closing detection device 10, the window sash 12 a, 12 b is closed, and a window opening / closing detection magnet 14 is attached to the opposite position with double-sided tape, and the magnetic force from the window opening / closing detection magnet 14 is incorporated. It is detected by a hall sensor as a magnetic sensing element.

  The window opening / closing detection magnet 14 is closest to the window opening / closing detection device 10 at the closed position of the window sash 12a, 12b, and the magnetic force level is maximum, and the window opening / closing detection magnet 14 is separated from the window opening / closing detection device 10 when the window is opened. As a result, the magnetic force detected by the Hall sensor decreases.

  The window open / close detection device 10 is arranged so that the lower end thereof is close to the crescent lock 16 provided on the window sash 12a, 12b, and the magnetic force of the crescent lock detection magnet 20 attached to the open / close lever 18 of the crescent lock 16 is lowered to the lower end. It is detected by another hall sensor built in the side.

  The crescent lock 16 locks the window sashes 12a and 12b at an operation position in which the opening / closing lever 18 is rotated in the illustrated vertical direction. At this time, the crescent lock detection magnet 20 is the hall sensor closest to the window opening / closing detection device 10. The detected magnetic force level is maximized. When the crescent lock 16 is unlocked by turning the opening / closing lever 18 downward, the magnetic force level detected by the Hall sensor decreases due to the separation of the crescent lock detection magnet 20.

  FIG. 3 is an exploded view of the window opening / closing detection apparatus according to the present embodiment. In FIG. 4, the window opening / closing detection device 10 according to the present embodiment includes an apparatus main body 22 and a cover member 24.

  The apparatus main body 22 is assembled from the bottom side, a circuit board 38 including a body case 36 and an antenna 40.

  A sensor board 45 is erected on the upper side of the circuit board 38, and a hall sensor 46 for detecting window opening / closing is disposed here. A crescent lock detecting hall element 48 is provided at the lower end of the circuit board 38.

  FIG. 4 is an explanatory diagram showing the relationship between the hall sensor and the magnet in the installed state of FIG. 2, in which FIG. 4 (A) shows a plan view, and FIG. 4 (B) shows a state seen from the lateral direction.

  As shown in FIG. 4A, the window opening / closing detection device 10 of the present embodiment is attached to the vertical frame of the window sash 12a located inside by double-sided tape or screws, and is relative to the right side surface of the window opening / closing detection device 10. The window opening / closing detection magnet 14 is bonded to the glass surface of the window sash 12b with double-sided tape.

  As shown in FIG. 4B, the window opening / closing detection hall sensor 46 built in the window opening / closing detection device 10 is mounted on the sensor substrate 45 so that the effective detection surface faces the window opening / closing detection magnet 14. When the window sashes 12a and 12b are closed, the distance d from the side of the apparatus is minimum, and the window opening / closing detection magnet 14 is a detection signal of a magnetic force level that is maximum with a positive polarity, for example, in accordance with the direction of the magnetic force lines indicated by broken lines. Is output.

  The minimum distance d when the window is closed varies depending on the structure of the window sash and the attachment state of the window opening / closing detection device 10, but in the present embodiment, the window is at a magnetic force level when it is disposed at a distance within a specified range. The amplification factor by the amplifier is set so that the closed determination result can be obtained efficiently.

  FIG. 5 is a block diagram showing a circuit configuration of the window opening / closing detection apparatus according to the present embodiment. In FIG. 5, a processor 50 provided as a control unit is a computer known as a one-chip microcomputer, and includes a CPU, a ROM, a RAM, an AD conversion port, various input / output ports, etc. on one chip. In the embodiment, a nonvolatile memory 68 such as an EEPROM is externally attached.

  The magnetic force level detection signal detected by the window opening / closing detection hall sensor 46 and provided by the window opening / closing detection magnet 14 on the window glass is amplified by the amplification circuit 52 and then applied to the AD conversion port 74 to convert the magnetic force level (AD Conversion value) is taken into the processor 50.

  Further, the magnetic force level detection signal detected by the lock detection hall sensor 48 by the crescent lock detection magnet 20 provided on the open / close lever 18 of the crescent lock 16 is also amplified by the amplification circuit 54 and then given to the AD conversion port 76 for digital conversion. The obtained magnetic force level (AD conversion value) is taken into the processor 50.

  A display unit 56, a registration switch 60, and a wireless transmission unit 66 are provided for the processor 50.

  The display unit 56 is provided with two-color LEDs, a red LED 56a and a green LED 56b. The green LED 56b is turned on during normal monitoring, and the red LED 56a is turned on when a failure such as a low battery occurs.

  The registration switch 60 is used for setting a lock registration mode performed at the start of use of the present embodiment.

  The wireless transmission unit 66 is provided with a transmission circuit 68 and a reception circuit 70, receives a control message such as polling from the monitoring board 11, and transmits a response message including the magnetic force level detected at that time.

  The non-volatile memory 72 stores the window opening / closing magnetic force level (first magnetic force level) Vs1 detected by the window opening / closing detection hall sensor 46 during initial registration in a registration process performed with the window opening / closing detection device 10 installed on the window. Has been. The non-volatile memory 72 stores the locking magnetic force level (second magnetic force level) Vs2 detected by the lock detection hall sensor 48 during the registration process by initial registration. Further, the non-volatile memory 72 stores an address assigned to the window opening / closing detection device 10.

  The processor 50 is provided with a magnetic force level registration unit 78 and a magnetic force level transfer unit 80 as functions realized by executing a program by the CPU.

  The magnetic force level register 78 operates by operating the registration switch 60, and initially registers the window opening / closing magnetic force level Vs1 detected by the window opening / closing detection hall sensor 46 in the closed state of the window in the non-volatile memory 72 and the crescent lock 16 The lock magnetic force level Vs2 detected by the lock detection hall sensor 48 in the closed state is initially registered in the nonvolatile memory 72, and then the window opening and closing and lock magnetic force levels Vs1 and Vs2 initially registered by the transmission request from the monitoring panel 11 are registered. Read and send response.

  In the monitoring state after the registration processing by the magnetic force level registration unit 78 is completed, the magnetic force level transfer unit 80 receives the collective AD conversion command from the monitoring panel 11 and detects the window detected by the window opening / closing detection hall sensor 46. When acquiring and holding the opening / closing magnetic force level Vs1 and the locking magnetic force level Vs2 detected by the lock detection hall sensor 48, and then receiving a transmission request by the polling command designating its own address from the monitoring panel 11, The window opening / closing magnetic force level Vs1 and the locking magnetic force level Vs2 held are transmitted as a response.

  FIG. 6 is a graph showing the AD conversion characteristics of the magnetic force level detection signal by the AD conversion port 74 of FIG. The window opening / closing detection hall sensor 46 shown in FIG. 5 outputs a positive polarity magnetic level detection signal and a negative polarity magnetic level detection signal according to the direction of passage of the magnetic lines of force. That is, in FIG. 4, the window opening / closing detection magnet 14 is arranged on the right side of the window opening / closing detection device 10, but depending on the structure of the window, it may be arranged on the left side of the window opening / closing detection device 10. The polarity output from the detection hall sensor 46 is different. Also, the polarity varies depending on the direction of the magnetic field lines depending on the direction of the magnet.

  The magnetic force level detection signal from the window opening / closing detection hall sensor 46 is amplified by the amplifier circuit 52 and then converted into magnetic force level data (AD converted value) by the AD conversion port 74.

  The conversion characteristics of the AD conversion port 74 have values of 0 to 256 as decimal AD conversion values as indicated by the vertical axis in FIG. 6, and the positive polarity magnetic force level detection signals 0 to + Vmax to be input are converted into AD conversion values. It converts into 128-256, and the magnetic force level detection signal 0-Vmax of the minus polarity input is converted into AD conversion value 128-0.

  FIG. 7 is a graph showing the relationship of the magnetic force level detected by the window opening / closing detection hall sensor 46 with respect to the distance d from the device side surface to the window opening / closing detection magnet 14 in the present embodiment. In FIG. 7, for ease of explanation, AD conversion values are shown as 0 to 128 regardless of the polarity of the magnetic force level detection signal.

  The characteristic of FIG. 7 shows the AD conversion value corresponding to the magnetic force level measured by changing the distance d from the side of the apparatus to the window opening / closing detection magnet 14 in the range of d = 0 to 24 mm in the installation state of FIG. ing.

  In such a characteristic, for example, if a magnet arrangement with d = 20 mm is planned, the window opening / closing magnetic force level Vs1 corresponding to the point P at this time is obtained. The initially registered window opening / closing magnetic force level Vs1 is sent to the monitoring panel 11, and a value lower than the window opening / closing magnetic force level Vs1 by a predetermined ratio α is set as the first window determination threshold value TH1 in the monitoring panel 11, and further, the window opening / closing magnetic force is set. A value higher than the level Vs1 by a predetermined ratio is set as the second window determination threshold value TH2 for determining fraudulent acts caused by mischief that brings a strong magnet from the outside.

  FIG. 8 is an explanatory diagram showing the relationship between the crescent lock detection magnet 20 and the lock detection hall sensor 48 in the present embodiment. In FIG. 8, a lock detection hall sensor 48 is disposed at the crescent lock side end of the device main body 22 in the window opening / closing detection device 10, and a conical magnetic collector 26 housed in the cover member 24 in front (downward) thereof. Is arranged.

  The crescent lock detection magnet 20 provided on the open / close lever 18 of the crescent lock 16 is located at a distance h from the outer end surface of the illustrated cover member 24 in the locked state of the open / close lever 18, and the distance h at this lock position is the minimum distance. Become. The magnetic flux from the crescent lock detection magnet 20 enters the large-diameter incident surface of the magnetic collector 26, then converges on the opposite small-diameter exit surface and passes through the lock detection hall sensor 48.

  The magnetic flux generated by the crescent lock detection magnet 20 is detected as a voltage signal corresponding to the magnetic force by the lock detection hall sensor 48, amplified by the amplification circuit 54, and then read as a magnetic force level (AD conversion value) by the AD conversion port 76. .

  FIG. 9 is a graph showing the relationship between the magnetic force level detected by the lock detection hall sensor 48 and the distance h from the device end face to the crescent lock detection magnet 20 shown in FIG. Although the conversion characteristics of the AD conversion port 76 are the same as those in FIG. 6, in FIG. 9, the AD conversion value is set to 0 to 128 regardless of the polarity of the magnetic force level detection signal in order to simplify the description. As shown.

  Here, for example, if the distance h to the crescent lock detection magnet 20 is h = 10 mm, the locking magnetic force level Vs2 corresponding to the point P is initially registered. The initially registered locking magnetic force level Vs2 is sent to the monitoring panel 11, and the lock determination threshold TH3 is set as a value lower than the initially registered locking magnetic force level Vs2 by the monitoring panel 11.

  FIG. 10 is a block diagram showing an embodiment of the monitoring board 11 in the present invention. In FIG. 10, the monitor panel 11 is provided with a processor 84, and a notification unit 86, an operation unit 88, a transfer unit 90, a power supply unit 92, a wireless communication unit 94, and a nonvolatile memory 102 are provided for the processor 84. ing.

  The notification unit 86 includes a liquid crystal display, an indicator lamp such as an LED, a speaker for an acoustic alarm, and the like, and displays a mode setting display for monitoring on the monitoring panel 11 and an alarm display when an abnormality is detected in the answering mode setting state. Do.

  The operation unit 88 is provided with a registration switch, a mode setting switch for setting an answering machine mode, and the like. When the registration switch of the operation unit 88 is operated, an initial registration collection command is transmitted to a plurality of window opening / closing detection devices attached to the window, and the window opening / closing magnetic force level Vs1 initially registered in each window opening / closing detection device is transmitted. The locking magnetic force level Vs <b> 2 is acquired, and a determination threshold value creation process for the management information table 104 provided in the nonvolatile memory 102 is executed.

  The power supply unit 92 generates and supplies DC power from AC 100 volts. The wireless communication unit 94 is provided with a transmission circuit 96 and a reception circuit 98. The antenna 100 is used to wirelessly transmit a telegram with the window opening / closing detection device 10 shown in FIG.

  The non-volatile memory 102 has a determination threshold value for determining the opening / closing of the window and the opening / closing of the crescent lock with respect to the window opening / closing magnetic force level Vs1 and the locking magnetic force level Vs2 collected from the plurality of window opening / closing detection devices centrally monitored by the monitoring panel 11. Are registered using the management information table 104, and the opening / closing of the window and the opening / closing of the lock are determined using this determination threshold.

  The processor 84 is provided with a registration processing unit 106, a magnetic force level acquisition unit 108, a window opening / closing monitoring unit 110, and a lock monitoring unit 112 as functions realized by executing the program.

  The registration processing unit 106 operates by a registration operation such as a registration switch provided in the operation unit 88 when starting up the system, and a plurality of window opening / closing detection devices that are centrally monitored by the monitoring panel 11, such as shown in FIG. An initial registration collection command is transmitted to the window opening / closing detection devices 10-1 to 10-4, and the window opening / closing magnetic force level Vs1 initially registered in the nonvolatile memory 72 of the window opening / closing detection devices 10-1 to 10-2 is locked. The magnetic level Vs2 is collected, and based on this, the first window opening / closing threshold TH1 for determining opening / closing of the window, the second window determination threshold TH2 for determining fraud by bringing a strong magnet closer, and the opening / closing of the crescent lock. The lock determination threshold value TH3 to be determined is calculated and stored in the management information table 104 of the nonvolatile memory 102 together with the collected window opening / closing and locking magnetic force levels Vs1 and Vs2.

  FIG. 11 is an explanatory diagram showing the information management table 104 stored in the nonvolatile memory 102 of FIG. In the information management table 104, assuming that the terminal address of the window opening / closing monitoring devices 10-1 to 10-4 is 001 to 004 when the monitoring system of FIG. 1 is targeted, the window opening / closing magnetic force corresponding to each address. The level Vs1i and the locking magnetic force level Vs2i are registered in the collection process based on the initial registration collection command (where i = 1, 2, 3, 4,...).

  Subsequently, the first window determination threshold TH1i for the window opening / closing determination threshold calculated as a value lower by a predetermined ratio than the window opening / closing magnetic force level Vs1i is stored. Further, a second window determination threshold value TH2i for determining misconduct such as mischief that gives a strong magnetic force from the outside and loses the detection function as a value higher than the window opening / closing magnetic force level Vs1i is calculated and registered. .

  Furthermore, a lock determination threshold TH3i calculated as a value lower by a predetermined ratio than the locking magnetic force level Vs2i is registered.

  Thus, in the monitoring panel 11 of the present embodiment, each of the window opening / closing detection devices 10-1 to 10-4 is based on the window opening / closing magnetic force level Vs1i and the locking magnetic force level Vs2i actually detected in the installed state, respectively. A unique determination threshold value is calculated and registered in the management information table 104, thereby setting a determination threshold value according to the detection state of the optimum actual magnetic force level, regardless of the unambiguous determination threshold value. It is also possible to determine whether the crescent lock is open or closed.

  Referring again to FIG. 10, the magnetic force level acquisition unit 108 provided in the processor 84 transmits a batch AD conversion command to the window opening / closing detection devices 10-1 to 10-4 at predetermined intervals T. Accordingly, the window opening / closing magnetic force level by the window opening / closing detection hall sensor 46 and the locking magnetic force level by the lock detection hall sensor 48 are simultaneously read from the AD conversion ports 74 and 76 on the window opening / closing detection devices 10-1 to 10-4 side. Hold with.

  After transmitting the batch AD conversion command, the magnetic force level acquisition unit 108 transmits a polling command in which addresses of the window opening / closing detection devices 10-1 to 10-4 are sequentially specified, and detects window opening / closing as a response to the polling command. A response message including, as data, the window opening / closing magnetic force level Vs1 and the locking magnetic force level Vs2 held by the execution of the batch AD conversion command is received from the devices 10-1 to 10-4.

  When the window opening / closing monitoring unit 110 receives the window opening / closing magnetic force level Vs1 by the polling command of the magnetic force level acquisition unit 108 in the answering mode setting state, the first window determination threshold value TH1 corresponding to the address of the management information table 104 is received. And the second window determination threshold value TH2 are read and compared, and if the window opening / closing magnetic force level Vs1 is equal to or lower than the first window determination threshold value TH1, it is determined that the window is open, and if it exceeds, the window is determined to be closed. If the window opening / closing magnetic force level Vs1 is equal to or higher than the second window determination threshold value TH2, it is determined that the fraud is caused by mischief by approaching a strong magnet from the outside. In this case, it is determined that the window is opened.

  When the window opening / closing monitoring unit 110 determines that the window is opened, an alarm is displayed by the notification unit 86, an acoustic alarm is issued from a speaker or the like, and an alarm notification is issued from the transfer unit 90 to an external engine.

  The lock monitoring unit 112 compares the lock magnetic force level Vs2 received by the polling command from the magnetic force level acquisition unit 108 with the lock determination threshold TH3 read from the corresponding address in the management information table 104 in FIG. 11 in the answering mode setting state. If the lock determination threshold value TH3 is not greater than the lock determination threshold value TH3, the lock release is determined.

  When unlocking is determined by the lock monitoring unit 112, a warning is given by the notification unit 86. The notifying means can not only specify the window opening / closing detection device 10 that has detected the abnormality and issue an alarm, but also notify which type of threshold has been exceeded.

  During normal monitoring, the magnetic force level is collected by polling the window opening / closing detection device 10 sequentially. However, when an abnormality of window opening or unlocking is determined, the window opening / closing detection device 10 that has determined the abnormality is polled more than others. Condition monitoring is focused on a small interval.

  FIG. 12 is an explanatory diagram showing a message format used in the monitoring board 11 of the present embodiment. FIG. 12A shows a downlink telegram 114 transmitted from the monitoring panel 11 to the window opening / closing detection device side, which includes a preamble, a command, an address, and a check code.

  The preamble is a continuous code of “010101...” And is used for phase synchronization such as PLL on the receiving side. In this embodiment, an initial registration collection command, a batch AD conversion command, a polling command, and the like are set as commands. The address is set to the address of the window opening / closing detection device to which the downlink message 114 is sent. For a common command such as a batch AD conversion command, a common address that can be simultaneously recognized as a self address by each window open / close detection device is set. The check code is an appropriate check code such as parity.

  FIG. 12B shows an upstream message 116 that is sent from the window opening / closing detection device 10 to the monitoring panel 11 side. The upstream telegram 116 includes a preamble, status, address, window opening / closing magnetic force level, locking magnetic force level, and check code.

  As the status in the upstream message 116, a status command corresponding to the type of the response message is set. The address is the address of the window opening / closing detection device itself as a transmission source. If the window opening / closing magnetic force level and the locking magnetic force level are the upstream telegram 116 for response to the initial registration collection command, as shown in FIG. 5, the magnetic force level Vs1 and magnetic force level Vs2 initially registered in the nonvolatile memory 72 are used. In the normal monitoring state after the registration process is completed, the magnetic force level is read and held from the AD conversion ports 70 and 72 upon reception of the batch AD conversion command.

  FIG. 13 is a time chart showing a communication operation between the monitoring panel 11 and the window opening / closing detection devices 10-1 to 10-4 according to the present embodiment. FIG. 13A shows the communication operation in the normal monitoring state of the monitoring panel 11, and the batch AD conversion command 118 is transmitted every predetermined period T. When the batch AD conversion command 118 is transmitted, the window opening / closing detection sensors 10-1 to 10-4 shown in FIGS. 13 (B) to 13 (E) receive window opening / closing hall sensors and locks from the AD conversion ports 74 and 76, respectively. AD conversion read processing 120-1 to 120-4 for reading and holding AD conversion data at the recording level detected by the detection hall sensor 48 is executed.

  When the monitoring board 11 transmits the batch AD conversion command 118, the polling commands 122-1, 122-2, 122-3, 122-, which sequentially specify the addresses of the window opening / closing detection devices 10-1 to 10-4, are sent. 4, ... 122-n are sequentially transmitted.

  For example, when the monitoring panel 11 transmits the polling command 112-1 by designating the address 1 of the window opening / closing detection device 10-1, this is received by the window opening / closing detection device 10-1, and the previous batch AD conversion command 118 is received. A response telegram 124-1 having the format configuration of the upstream telegram 116 of FIG. 12B including the window opening / closing magnetic force level Vs1 and the locking magnetic force level Vs2 held by reception is transmitted.

  Similarly, the window open / close detection devices 10-2 to 10-4 transmit response messages 124-2 to 124-4 in response to the polling commands 122-2 to 122-4. Thereafter, this process is repeated.

  FIG. 14 is a flowchart showing the monitoring control process by the monitoring panel 11 of the present embodiment, which will be described below with reference to FIG.

  In FIG. 14, in the monitoring control process by the monitoring panel 11, when the monitoring panel 11 is turned on, an initialization process and a self-diagnosis process are first executed in step S1. Then, it progresses to step S2 and performs a registration process. The details of this registration processing are shown in the flowchart of FIG. 15, and the magnetic force levels initially registered from the window opening / closing detection devices 10-1 to 10-4 are collected, and the determination threshold value is calculated and registered.

  Subsequently, in step S3, it is determined whether or not the monitoring mode is set. If the answering mode setting operation is performed when going out, the setting of the monitoring mode is determined, and the process proceeds to step S4 and subsequent steps.

  In step S4, a batch AD conversion command is transmitted every time a predetermined period T is reached, and a polling command specifying the first address of the window opening / closing detection device is transmitted in step S5. When the polling response is received in step S6, the window opening / closing magnetic force level and the locking magnetic force level are read in step S7, and the window opening / closing monitoring process is performed in step S8.

  In the window opening / closing monitoring process, the first window determination threshold value TH1 and the second window determination threshold value TH2 shown in FIG. 13 corresponding to the address are read from the management information table 104 and compared with the window opening / closing magnetic force level. If it is determined in step S9 that the window has been opened, the process proceeds to step S13, where alarm processing is executed.

  If it is not determined in step S9 that the window is open, the process proceeds to step S10 to perform crescent lock monitoring processing. In the crescent lock monitoring process, the lock determination threshold value TH3 corresponding to the address is read from the management information table 104 of FIG. 11 and compared with the lock magnetic force level. If the unlocking is determined in step S11 for the comparison result, the process proceeds to step S13. Alarm processing is performed at.

  Note that the crescent locking monitoring process in step S10 is performed when the window opening is not determined in step S9, but the locking monitoring process in step S10 is performed regardless of the window opening / closing determination result.

  When the alarm process is performed in step S13, the alarm process is continued until an alarm stop operation is performed in step S14. When the alarm stop process is determined, the alarm is stopped in step S15.

  In step S12, it is determined whether or not the address by polling transmission in step S5 has reached the final address, and the processing from step S5 is repeated until the final address is reached. When the final address is determined in step S12, the process returns to step S3 through the low battery reception process in step S16 and the periodic report reception process in step S17. If the monitoring mode setting is continued, the process returns from step S4. Repeat the process.

  The low battery reception process in step S16 receives a response message from the window opening / closing detection device that has caused the low battery, for example, a response message due to an interruption based on detection of the low battery, and the failure of the window opening / closing detection device that has generated the low battery. Display and so on.

  In the periodic report receiving process in step S17, for example, a periodic report message is sent from the window opening / closing detection device once every predetermined time, and the periodic report message is not received even after the predetermined time has elapsed. Since a failure has occurred in the window opening / closing detection device, a failure alarm is issued.

  FIG. 15 is a flowchart showing details of the registration process in step S2 of FIG. In FIG. 15, in the registration process of the monitoring panel 11, an initial registration collection command is transmitted in step S21 while sequentially specifying the addresses of the window opening / closing detection devices.

  Subsequently, when it is determined in step S22 that a response message has been received, the process proceeds to step S23, where it is determined whether or not initial registration has been performed normally. Whether or not the initial registration is normally performed is recognized by the fact that the initial registered magnetic force level included in the received response message is all zero, etc., and thus the initial registration is not normally performed. To do. It can also be recognized from the status of the response message.

  If the initial registration is normal in step S23, the process proceeds to step S24, where the window opening / closing magnetic force level Vs1 is read from the response message. In step S25, the window opening / closing determination threshold TH1 lower than the window opening / closing magnetic force level Vs1 by a predetermined ratio, A window opening / closing determination threshold value TH2 higher than the opening / closing magnetic force level Vs1 by a predetermined ratio is calculated and registered in the management information table 104.

  Subsequently, in step S26, the locking magnetic force level Vs2 is read from the response message, and in step S27, a lock determination threshold value TH3 that is lower by a predetermined ratio is calculated and registered in the management information table 104. Subsequently, in step S28, it is checked whether or not all addresses have been completed. If they have not been completed, the process returns to step S21 to specify the next address and repeat the same processing.

  FIG. 16 is a flowchart showing details of the window opening / closing monitoring process in step S8 of FIG.

  In FIG. 16, first, in step S31, the magnetic force level detected by the window opening / closing detection hall sensor 46 is acquired as an AD conversion value. The process proceeds to step S32, and if it is determined that the previous window open determination is made, the process proceeds to step S33. Is compared with the first window determination threshold TH1. If the magnetic force level is equal to or lower than the first window determination threshold value TH1 in step S33, the process proceeds to step S34 to determine window opening.

  On the other hand, if the magnetic force level exceeds the first window determination threshold value TH1 in step S33, it is compared with the second window determination threshold value TH2 in step S35. Is determined to be an abnormal increase in the magnetic force level due to approaching from the outside, and the process proceeds to step S34 to determine window opening.

  If the previous determination was an open determination in step S32, the process proceeds to step S36, and if the magnetic force level is greater than the first window determination threshold level TH1 and smaller than the second window determination threshold TH2, the process proceeds to step S37. Closed judgment is performed.

  FIG. 17 is a flowchart showing details of the crescent lock opening / closing monitoring process in step S10 of FIG.

  In FIG. 17, first, the magnetic force level detected by the locking detection hall sensor 48 in step S41 is acquired as an AD conversion value. The process proceeds to step S42, and if it is determined that the previous time is a window closing determination, the process proceeds to step S43. Compare with the lock determination threshold TH3.

  If the magnetic force level is equal to or lower than the lock determination threshold TH3 in step S43, the process proceeds to step S44 to determine unlocking.

  On the other hand, if the previous determination was an open determination in step S42, the process proceeds to step S45, and if the magnetic force level is greater than the lock determination threshold level TH3, the process proceeds to step S46 to perform a lock determination.

  FIG. 18 is a flowchart showing the window opening / closing detection process by the window opening / closing detection device 10 of the present embodiment, and it will be described below with reference to the window opening / closing detection device 10 of FIG.

  In FIG. 18, in the window opening / closing detection processing, when power is turned on, initialization processing and self-diagnosis processing are executed in step S51, memory data such as an address is read from the nonvolatile memory 72 in step S52, and the magnetic force level is read in step S53. Perform initial registration processing. The details of the magnetic force level initial registration processing are processing for initial registration of the locking magnetic force level Vs2 in the nonvolatile memory 72, as shown in the flowchart of FIG.

  Subsequently, when it is determined in step S54 that the batch AD conversion command is received from the monitoring panel 11, the process proceeds to step S55, and the window opening / closing magnetic force level detected by the window opening / closing detection hall sensor 46 is read from the AD conversion port 74, In step S56, the lock magnetic force level detected by the lock detection hall sensor 46 is read from the AD conversion converter 76 and stored in the RAM or the like.

  Subsequently, when it is determined in step S57 that a polling command specifying its own address has been received, the process proceeds to step S58, where a response message having the format structure of the upstream message 116 shown in FIG. 14B is created and transmitted. Subsequently, a low battery monitoring process is performed in step S59. If a low battery whose battery voltage has dropped below a predetermined voltage is detected, the low battery is communicated to the monitoring panel 11 by an interrupt command.

  Subsequently, a periodic notification process is executed in step S60. In the periodic notification process, a periodic notification command is transmitted at predetermined time intervals.

  FIG. 19 is a flowchart showing details of the magnetic force level initial registration process in step S53 of FIG. In FIG. 19, first, in step S61, it is determined whether the registration switch 60 is turned on. For initial registration of the magnetic force level, the open / close lever 18 is operated to the unlocked position to set the crescent lock detecting magnet 20 to the maximum distance. When the cover member 24 is opened and the registration switch 60 is operated, it is determined that the registration switch is turned on, the process proceeds to step S62, the red LED 56a blinks, and the registration mode is started in step S63.

  In the registration mode, it is determined whether or not a predetermined time, which is a registration possible period, has elapsed by the timer started at the start of the registration mode in step S64, and the process proceeds to step S65 until the predetermined time elapses. The magnetic force level detected by the detection hall sensor 48 is acquired and compared with a predetermined effective level set in advance in step S66. When the effective level is obtained, the process proceeds to step S67, and the magnetic force level Vs2 is stored in the nonvolatile memory 72. Remember as.

  When the magnetic force level Vs2 is effectively initially registered in the nonvolatile memory 72, the green LED 56b of the display unit 56 is turned on in step S68 to notify the completion of the initial registration.

  Subsequently, when it is determined in step S69 that the initial registration collection command is received from the monitoring panel 11, the process proceeds to step S70, and response messages of the magnetic force levels Vs1 and Vs2 stored in the nonvolatile memory 72 are generated and transmitted to the monitoring panel 11. .

  On the other hand, when the cover member 24 is closed and the opening / closing lever 18 of the crescent lock 16 is not returned to the locked position during a predetermined time period in which the registration mode is set by operating the registration switch 60. In step S66, since the magnetic force level exceeding the effective level cannot be obtained, the elapse of the registration possible period is determined in step S64, the process proceeds to step S71, and the red LED 56a is switched from blinking to lighting, thereby failing the initial registration. indicate.

  Subsequently, when it is determined in step S72 that an initial registration collection command has been received from the monitoring board 11, the process proceeds to step S73, where a response message with a status of error is created and transmitted to the monitoring board 11.

  In the above embodiment, the case where both the opening and closing of the window and the crescent lock opening and closing are detected and monitored is taken as an example. However, a monitoring system that detects and monitors only one of the windows may be used.

  In the above embodiment, when the answering machine mode is set on the monitoring panel 11, an alarm is issued when the opening of the window or the crescent lock is detected, but the normal home state where the answering machine mode is not set. In this case, the monitoring panel 11 may poll the window opening / closing detection device to collect the opening / closing state of the window and the opening / closing state of the crescent lock so that the window state is constantly displayed on the monitoring panel. .

  According to such a steady window open / closed display, for example, when it suddenly rains, it is possible to immediately know which window is open by looking at the display on the monitoring panel 11 and appropriately Can take a good response.

  In the above embodiment, the magnetic force level collected from the window open / close detection device is compared with a predetermined threshold value to determine whether the window is open or closed. However, the open / close state of the window is an analog amount of the magnetic force level. Since it can be detected, it is also possible to make a judgment on the monitor panel side by judging the window state more finely from the change in the value of the magnetic force level, without comparing with a simple judgment threshold value.

  In the present invention, the threshold value calculated and registered at the time of initial registration may be arbitrarily changed or recalculated by operating the operation unit 88 provided on the monitoring panel 11. If the magnetic force level fluctuates due to secular change, there is a possibility of erroneously determining the open / closed state of the monitoring target to which the magnet is attached. Therefore, an inspection command is sent from the monitoring panel 11 to each window open / close detection device, By collecting various magnetic force levels, calculating and re-registering the magnetic force level initial values and threshold values shown in the management information table 104 of FIG. 11, a reliable determination can be made regardless of changes over time.

  The re-registration of the management information table 104 may be performed not only by manual operation of the monitoring panel 11 but also by periodically transmitting an inspection command and resetting the management information table 104. The management information table 104 may be reset based on the magnetic force level value included in the uplink message 116 from each window open / close detection device 10 during normal polling. When the control panel 11 is registered after confirming that each window is locked, the magnetic force level detected by each window opening / closing detection device at that time is collected, the threshold value is calculated, and the management information table 104 may be set. A processing result indicating whether the registration is normally completed is displayed on the control panel 11.

  If the registration process has not been completed normally, the window opening / closing detection device that has ended in the abnormal process can be easily recognized by displaying the abnormal display on the indicator lamp of the window opening / closing detection device 10 that has ended abnormally. In this case, by operating the registration switch provided in the window opening / closing detection device, the registration processing of the window opening / closing detection device is individually executed and stored, and when the polling from the control panel is performed, it is detected that the registration mode is in effect. By transmitting to the control panel together with the level, it is possible to register the initial value of the magnetic force level on the control panel, further calculate the threshold value, and perform re-registration.

  By operating a registration switch provided in the window opening / closing detection device, the window opening / closing detection device may individually transmit to the control panel to perform the registration processing of the magnetic force level and the threshold value.

Further, the present invention includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited by the numerical values shown in the above embodiments.

11: Monitor panel 10, 10-1 to 10-4: Window opening / closing detection device 46: Window sensor for detecting opening / closing of window 48: Hall sensor for detection of locking 78: Magnetic force level registration unit 80: Magnetic force level transfer unit 82: Locking monitoring unit 106: Registration processing unit 108: Magnetic level registration unit

Claims (8)

A window opening / closing detection device that wirelessly transmits a detection signal based on a magnetic force level detected by a magnetic sensing element by arranging a magnet on a monitoring object of the window;
A monitoring board for determining and notifying the state of the monitoring object based on the detection signal wirelessly transmitted from the window opening / closing detection device and a threshold value calculated in advance and stored in the board;
A monitoring system characterized by comprising:
The monitoring system according to claim 1,
The window opening / closing detection device wirelessly transmits a window opening / closing detection signal based on a magnetic force level according to an opening / closing state of a window and a lock opening / closing detection signal based on a magnetic force level according to an opening / closing state of a lock provided on the window,
The monitoring panel determines the open / closed state of the window and the lock based on each detection signal wirelessly transmitted from the window open / close detection device in response to a transmission request to the window open / close detection device and a threshold value for each detection signal stored in advance. A monitoring panel to notify,
A monitoring system characterized by comprising:
In the monitoring system according to claim 1 or 2,
A detection signal received by requesting a detection signal from the window opening / closing detection device is registered by operating an operation unit provided on the monitoring panel, and the threshold value is calculated and registered based on the detection signal. Monitoring system.
3. The window opening / closing detection device according to claim 1 or 2, wherein the window opening / closing detection device includes a registration operation unit, measures a magnetic force level by operating the registration operation unit, and transmits a detection signal to the monitoring panel. The monitoring system registers the received detection signal and calculates and registers a threshold based on the received detection signal.
The monitoring system according to claim 1,
The monitoring panel calculates a first determination threshold that is lower by a predetermined ratio than the detection signal received from the window opening / closing detection device, registers the first determination threshold as a threshold for determining a state change of the monitoring object, and determines a predetermined ratio from the detection signal. Calculating and registering a high second determination threshold to discriminate fraudulent acts in which a strong magnetic force is applied from the outside,
When a detection signal received from the window opening / closing detection device in a monitoring state decreases below the first determination threshold, a change in the monitoring object is determined, and when the magnetic force level increases above the second determination threshold A monitoring system characterized by determining fraud.
The monitoring system according to claim 5, wherein
When the detection signal of the window opening / closing detection device exceeds a threshold, the monitoring panel identifies and alerts the window opening / closing detection device exceeding the threshold and the type of the threshold.
The monitoring system according to claim 1,
The monitoring panel stores the detection signal and threshold value for each of the plurality of window opening / closing detection devices, receives the detection signal for each window opening / closing detection device, and compares the threshold value to determine the state of the monitoring object. A monitoring system characterized by
  8. The monitoring system according to claim 7, wherein the monitoring panel sequentially outputs a transmission request to the window opening / closing detection device to receive a detection signal, and if the received detection signal exceeds a threshold value, the threshold value is exceeded. A monitoring system characterized by increasing a transmission ratio of a transmission request to a window open / close detection device.

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