JP5479718B2 - Window open / close detection device - Google Patents

Description

The present invention relates to open or closed state of the window in the window opening and closing detection equipment which detects by using a magnetic sensing element such as a Hall sensor.

2. Description of the Related Art Conventionally, a wireless window opening / closing detection device that detects opening / closing of a window and sends it to a monitoring panel wirelessly as an alarm is known as a monitoring target. In such a window opening and closing detecting device detects the magnetic force of the magnet arranged on the window glass by the magnetic sensing element, the radio transmission to the alarm panel abnormality detection signal determines that the window opens when the detected magnetic force drops Alarm. Also, when the magnetic force of the magnet placed on the open / close lever of the Crescent lock as a monitoring target provided on the window is detected by another magnetic detection element, and the detection magnetic force decreases due to the opening / closing lever being released and the magnet moving away from the magnetic detection element Therefore, it is determined that the crescent lock has been released, and an abnormality detection signal is transmitted wirelessly to the monitoring panel for alarming.

The magnetic detection elements used in conventional window open / close detection devices mainly use reed switches that mechanically turn contacts on and off according to the strength of the magnetic force, but in recent years, the Hall effect has been used. Therefore, it has been studied to employ a Hall sensor that detects magnetic force.

  When the Hall sensor is used as a magnetic sensing element, the closer to the magnet to be detected, the stronger the magnetic force that passes through the Hall sensor, the higher the sensor output.

However, when the magnetic force of the magnet provided on the open / close lever of the crescent lock is detected by the hall sensor, the window open / close detection device installed in the vertical frame of the window does not hinder the operation of the open / close lever of the crescent lock, for example, It is necessary to install it about 30 mm away from the tip of the opening / closing lever in the locked position.

  When the position of the magnet with respect to the window open / close detection device is separated as described above, the magnetic force is attenuated in proportion to the square of the distance, so that the magnetic force passing through the Hall sensor arranged in the device is reduced and sufficient detection is achieved. No output can be obtained.

  In order to solve this problem, the inventor of the present application arranges a conical magnetic collector on the front surface of the Hall sensor so as to increase the detection output through sufficient magnetic force to the Hall sensor even if the distance from the magnet increases. Has been proposed (Japanese Patent Application No. 2008-278878).

  The window open / close detection device is driven by a battery, and since the window open / close detection device is attached to the vertical frame on the side of the window, the window open / close detection device is vertically long, and the Hall sensor is disposed on the lower end side opposite to the crescent lock. The battery is stored on the upper side.

  In addition, in order to monitor the crescent lock by the window open / close detection device, the crescent lock open / close lever is set to the lock position and the magnetic force level detected by the Hall sensor in the state where the magnet is close to the minimum distance is initially registered. It is necessary to set a determination threshold value for determining locking and unlocking based on the initially registered magnetic force level.

Such initial registration of the magnetic level is conventionally considered in the final stage of the manufacturing process, in which the magnet is arranged at the minimum distance in the locked state assumed for the crescent lock, and the magnetic level is initially registered and shipped. .

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

  However, there is the following problem when the magnetic force level is initially registered at the final stage of the manufacturing process.

  First, there are various types of crescent locks provided on the windows that are actually installed. Initially register the magnetic force level assuming the minimum distance from the magnet provided on the open / close lever when the crescent lock is uniquely locked. However, there is a possibility that the magnetic field level may be greatly different from the actual installation level, and an appropriate determination threshold may not be set.

  Further, according to the knowledge of the inventor of the present application, after shipment, the magnet and the device are put together in the same box, and the internal circuit, the device main body components or the mounting surface, etc., which are arranged around the Hall sensor during movement Even if the minimum distance of the open / close lever can be accurately grasped, it is unclear how much the environment is actually installed, so the initial magnetic force level at the final stage of the manufacturing process is unknown. Many problems remain with registration.

  In addition, some users may want to monitor only the opening and closing of the window glass without monitoring the opening and closing of the crescent lock.At first, both were monitored, but after that, only the opening and closing of the window was monitored. It is also possible to change. However, the conventional window opening / closing detection device needs to be replaced with a window opening / closing detection device that monitors only the opening / closing of the window glass.

The present invention is easily and reliably at the installation site, and to provide a window opening and closing detection equipment which enables the actual initial registration of magnetic force level corresponding to the installation conditions.

The present invention provides a window opening / closing detection device capable of monitoring the opening / closing state of a window and the opening / closing state of a crescent lock provided on the window.
A lock detection magnet disposed on the open / close lever of the crescent lock provided on one side of the window ;
A device body arranged on one side of the window ;
A window opening / closing detection magnet disposed on the other side of the window;
With
The device body is
A magnetic detection element for detecting a lock for detecting a magnetic force level of the lock detection magnet;
A magnetic detection element for detecting the opening and closing of the window for detecting the magnetic force level of the window opening and closing detection magnet;
A manually operable registration control,
A processing circuit section;
With
Processing circuit section,
Operate by operating the registration operation unit, on the basis of the magnetic force levels the initial registration with force levels in locked position of the operating lever detected by the lock detecting magnetic sensing element is initially registered when a predetermined effective level A registration processing unit for setting a determination threshold for detecting the open / closed state of the crescent lock ;
A lock monitoring unit that monitors the change in the magnetic force level of the lock detection magnet due to the operation of the open / close lever and determines the open / closed state of the crescent lock by comparing the magnetic force level detected by the magnetic detection element for lock detection with a set determination threshold;
Window open / close status is determined by monitoring the change in the magnetic level of the window open / close detection magnet due to the opening / closing of the window, and comparing the magnetic level detected by the magnetic detection element for window open / close detection with a pre-registered judgment threshold. A monitoring unit;
It is provided with.

Here, the processing circuit unit does not start the monitoring operation by the lock monitoring unit when the magnetic force level detected by the lock detection magnetic sensing element at the initial registration of the magnetic force level is not a predetermined effective level.

The device body includes a first display unit and second display unit,
The registration processing unit operates the first display unit when the operation is started by the operation of the registration operation unit and activates the timer. When the initial registration of the magnetic level is completed within the set time by the timer, the registration processing unit When the operation of the indicator lamp is stopped and the second indicator lamp is operated to start the monitoring operation by the lock monitoring section and the window opening / closing monitoring section , and the initial registration of the magnetic force level is not completed within the set time , the first display section The monitoring operation by the window opening / closing monitoring unit is started without starting the monitoring operation by the locking monitoring unit while maintaining the above operation.

Further, the present invention provides a window opening / closing detection device capable of monitoring the opening / closing state of a window and the opening / closing state of a crescent lock provided on the window.
A lock detection magnet disposed on the open / close lever of the crescent lock provided on one side of the window;
A device body arranged on one side of the window;
A window opening / closing detection magnet disposed on the other side of the window;
With
The device body is
A magnetic detection element for detecting a lock for detecting a magnetic force level of the lock detection magnet;
A magnetic detection element for detecting the opening and closing of the window for detecting the magnetic force level of the window opening and closing detection magnet;
A manually operable registration control,
A processing circuit section;
With
The processing circuit section
When the magnetic force level at the locking position of the opening / closing lever detected by the lock detecting magnetic sensing element is a predetermined effective level, the initial registration is performed and the crescent lock is based on the initially registered magnetic force level. A threshold value for detecting the open / close state of the window is set, and when the magnetic level in the closed state of the window detected by the window open / close detection magnetic sensing element is a predetermined effective level, the initial registration is performed and the initial registered magnetic force level is set. A registration processing unit for setting a determination threshold for detecting the open / closed state of the window,
Changes in the magnetic force level of the lock detection magnet due to the operation of the open / close lever are monitored, and the open / close state of the crescent lock is determined by comparing the magnetic force level detected by the magnetic detection element for lock detection with the determination threshold value for detecting the open / close state of the crescent lock. A locking monitoring unit,
Changes in the magnetic force level of the window opening / closing detection magnet due to the opening / closing of the window are monitored, and the opening / closing state of the window is determined by comparing the magnetic force level detected by the magnetic sensor for detecting the opening / closing of the window with a determination threshold value for detecting the opening / closing state of the window. A window open / close monitoring unit;
It is provided with.

When the magnetic force level detected by the lock detection magnetic sensing element is not a predetermined effective level at the time of initial registration of the magnetic force level, the processing circuit unit does not perform the monitoring operation by the lock monitoring unit, and uses the window open / close detection magnetic detection element. When the detected magnetic force level is not a predetermined effective level, the monitoring operation by the window opening / closing monitoring unit is not performed. The magnetic sensing element and a lock detecting magnetic sensing element for window opening and closing detection Ru der Hall sensor.

  According to the present invention, when the registration operation is performed according to a predetermined procedure in a state where the window opening / closing detection device is installed on the window at the installation location, the magnetic force level of the magnet when the crescent lock opening / closing lever is operated to the locked position, or The magnetic force level of the magnet with the window closed is detected and initially registered by the magnetic sensing element, and an appropriate determination threshold can be set based on the initially registered magnetic force level.

In particular, various fluctuations such as changes in the magnetic force level when the crescent lock opening / closing lever is actually operated or when the window is opened and closed, and changes in the magnetic force level due to magnetization inside the device or the mounting surface Without considering the factors, it is possible to initially register the magnetic force level that is optimal for the installation environment of the apparatus main body.

In addition, when the magnetic force level detected by the magnetic sensing element at the time of registration is a predetermined effective level, initial registration is performed, and when the magnetic level is not effective level, the monitoring operation is not performed, so that the user can open and close the crescent lock or open and close the window. Monitoring can be performed by appropriately selecting the operation.

  In addition, in order to facilitate the registration operation at the installation site, the initial registration of the magnetic force level is automatically performed only by operating the registration switch provided on the apparatus body. Although it is required to operate the locking position within a predetermined time after the operation of, the procedure is not complicated, and the initial registration of the magnetic force level at the site can be performed easily and easily.

  In addition, when initial registration is performed, the status of initial registration is displayed by, for example, a two-color LED, and it is possible to easily confirm whether or not initial registration has been normally performed by viewing this display. For example, when the registration switch is operated, the red LED blinks. If the crescent lock is operated to the locked position within a predetermined time in this state, the initial registration of the magnetic force level is performed and the green LED is turned on, and the initial registration is completed. It can be seen that the lock monitoring has been started normally.

On the other hand, if it takes time to return the crescent lock to the locked position, or if the magnetic force level exceeding the effective level is not obtained for some reason, the red LED switches from blinking to lighting after a predetermined time, and the initial magnetic force level I see that you are not able to fail and locking monitoring the registration, it is appropriate action, such as re-again registration operation.

  FIG. 1 is an explanatory view showing an installation state of a window opening / closing detection device according to the present invention. In FIG. 1, a window opening / closing detection device 10 of the present invention is fixed to a vertical frame of window sashes 12a and 12b to be monitored by double-sided tape or screws. On the upper side of the window opening / closing detection device 10, the window sash 12a, 12b is closed, and a window opening / closing detection magnet 14 is affixed to the opposite position with double-sided tape. It is detected by a hall sensor as a detection element.

  When the window sash 12a, 12b is opened, the magnetic force is reduced by the window opening / closing detection magnet 14 being separated from the window opening / closing detection device 10, and a detection signal indicating the opening of the window is detected by detecting the decrease in the magnetic force with a hall sensor. Sent to the monitoring panel by radio to alert.

  The window opening / closing detection device 10 is arranged so that the lower end thereof is close to the crescent lock 16 as the monitoring object provided on the window sashes 12a, 12b, and the crescent lock detection magnet attached to the opening / closing lever 18 of the crescent lock 16. The magnetic force of 20 is detected by a hall sensor built in the lower end 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 magnetic force to be detected is maximized, and the locked state is detected.

When the closing lever 18 to unlock the crescent lock 16 by turning the lower magnetic force is reduced by crescent lock detecting magnet 20 is moved away from the detection device 10, the unlocked state of decrease of the magnetic force detected by the Hall sensor The detection signal shown is transmitted wirelessly to the monitoring panel to give an alarm.

  FIG. 2 is an explanatory view showing the relationship between the hall sensor and the magnet in the installed state of FIG. 1, in which FIG. 2 (A) shows a plan view and FIG. 2 (B) shows a state seen from the lateral direction.

  As shown in FIG. 2 (A), 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 opposed to the right side surface of the window opening / closing detection device 10. The window opening / closing detection magnet 14 is adhered to the glass surface of the window sash 12b with double-sided tape.

  As shown in FIG. 2B, 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. With the sashes 12a and 12b closed, the distance d from the side of the device is minimum, and the window opening / closing detection magnet 14 outputs a magnetic level detection signal that is maximum with a positive polarity, for example, according to the direction of the magnetic force line indicated by the broken line. doing.

  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 and determination threshold value by the amplifier 52 are set so that the closed determination result can be obtained efficiently.

  Contrary to FIG. 2, when the window sash 12b is on the inner side and the window sash 12a is on the outer side, the window opening / closing detection device 10 is installed in the opposite direction to the vertical frame at the right end of the inner window sash 12b. In this case, the lines of magnetic force generated by the window opening / closing detection magnet 14 affixed to the glass surface of the window sash 12a pass through the window opening / closing detection hall element 46 in the reverse direction from left to right. A negative polarity magnetic force level detection signal is output.

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

Device body 22 from the bottom side, the base 30, a metal plate lock cover 32, a body case 36, and assembling the circuit board 38 and the main body cover 4 2 with an antenna 40 are provided to be freely further detachable battery 44 . A conical magnetic current collector 26 is housed and fixed in the holder member 28 at an end portion of the cover member 24 located on the crescent lock side.

  A sensor board 45 is erected on the upper side of the circuit board 38, and the window opening / closing detection hall sensor 46 and the processing circuit section are mounted thereon. A crescent lock locking detection hall sensor 48 is provided at the lower end of the circuit board 38.

  FIG. 4 is an explanatory view showing a state where the cover member 24 is removed from the apparatus main body 22 in the window opening / closing detection apparatus 10 according to the present embodiment. On the upper part of the apparatus main body 22, a display unit 56 using two-color LEDs of red LED and green LED, a registration switch 60 for executing registration processing for initial registration of the magnetic force level detected by the lock detection hall sensor 48, and a cover member A tamper switch 64 for detecting attachment / detachment of 24 is provided. The apparatus main body 22 is fitted and fixed in response to the fitting of the cover member 24.

  The cover member 24 is detachable from the apparatus main body 22, and a display window 57 is provided in the center of the front so that the display state of the display unit 56 of the apparatus main body 22 can be seen.

  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.

  For the processor 50, the magnetic force level detection signal from the window opening / closing detection magnet 14 provided on the window glass detected by the window opening / closing detection hall sensor 46 is amplified by the amplifier 52 and then applied to the AD conversion port 70 for digital conversion. The magnetic force level (AD conversion value) is obtained.

  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 amplified by the amplifier 54 and then applied to the AD conversion port 72 for digital conversion. The magnetic force level (AD conversion value) is obtained.

  A display unit 56, a frequency switch 58, a registration switch 60, a test switch 62, a tamper switch 64, and a wireless transmission unit 66 are provided for the processor 50.

  The display unit 56 is provided with a two-color LED, a red LED 56a serving as a first display unit and a green LED 56b serving as a second display unit. For example, the red LED is turned on when abnormality is detected such as opening of a window or unlocking, and then normal The green LED is turned on at recovery. In addition, the registration state is displayed at the time of initial registration of the magnetic force level detected by the lock detection hall sensor 48. The frequency switch 58 selects any one of a plurality of usable channels prepared in advance for the wireless transmission unit 66.

  The registration switch 60 is used for setting a registration mode when the use of the window opening / closing detection device 10 of the present embodiment is started. A reed switch is used as the test switch 62. When the test magnet is brought close to the test switch 62, the test switch 62 operates to transmit a test message from the wireless transmission unit 66 to the monitoring board. The tamper switch 64 is a switch that detects attachment / detachment of the cover member 24.

  The wireless transmission unit 66 is provided with a transmission circuit, and wirelessly communicates the monitoring state to the monitoring panel.

Nonvolatile memory 68 and a determination threshold required for window opening and closing determination apparatus, data such effective levels used in initial registration of the magnetic force level required to lock monitoring crescent lock 16 is stored in advance, the locking monitor crescent lock 16 When the necessary initial registration is completed, the magnetic force level Vs and the determination threshold value TH are stored as illustrated.

  The processor 50 is provided with a registration processing unit 74, a window opening / closing monitoring unit 76, a lock monitoring unit 78, and a communication control unit 80 as functions realized by execution of a program by the CPU.

  As shown in FIG. 1, the registration processing unit 74 operates the open / close lever 18 of the crescent lock 16 to the unlocked position after the installation of the window open / close detection device 10, the window open / close detection magnet 14 and the crescent lock detection magnet 20 is completed. In this state, when the cover member 24 is removed and the registration switch 60 of the apparatus main body 22 is operated as shown in FIG. 3, the registration mode is set and the registration process is executed.

  When the registration mode is started, the red LED 56a of the display unit 56 starts blinking. While the red LED is blinking, the cover member 24 is attached to the apparatus main body 22, and the open / close lever 18 of the crescent lock 16 is operated to the locked position to bring the crescent lock detection magnet 20 closer.

  During the registration mode operation, the registration processing unit 74 acquires the magnetic force level detected by the lock detection hall sensor 48 and compares it with a predetermined effective level set in advance. Stored as a magnetic force level Vs. Note that the second and subsequent magnetic force levels are overwritten on the magnetic force level Vs of the nonvolatile memory 68.

When the magnetic force level Vs is effectively initially registered in the nonvolatile memory 68, the green LED 56b of the display unit 56 is turned on to notify the completion of the initial registration. When the initial registration is completed, the registration processing unit 74 calculates a value obtained by multiplying the initially registered magnetic force level Vs by a predetermined ratio, and registers it in the nonvolatile memory 68 as a determination threshold TH for determining whether the crescent lock 16 is unlocked or unlocked. The locking monitoring unit 78 starts monitoring the locking of the crescent lock 16 .

On the other hand, if the cover member 24 is closed and the opening / closing lever 18 of the crescent lock 16 is not returned to the locked position within a predetermined time in which the registration mode is set by operating the registration switch 60, the effective level is set. The initial registration of the magnetic force level is not completed because the magnetic force level is not obtained, and when the registration mode is set within a predetermined time, the red LED 56a switches from blinking to lighting, indicating that the initial registration has failed. and sets the error status of the registration process is not performed locking monitor Crescent lock 16 by locking monitoring unit 78.

  In this case, the initial registration of the magnetic force level can be performed again by returning the opening / closing lever 18 to the unlocked position, opening the cover member 24 and operating the registration switch 60.

Working procedures of methods required for the initial registration of such force level by the registration processing unit 74 is as follows.
(1) The crescent lock detection magnet 20 is set to the maximum distance by operating the open / close lever 18 to the unlocked position which is in one state.
(2) Open the cover member 24 and operate the registration switch 60.
(3) Within a predetermined time from the operation of the registration switch 60, the open / close lever 18 is operated to the locked position which is the other state with the cover member 24 closed to the apparatus main body 22, and the crescent lock detecting magnet 20 is set to the minimum distance. Set.

  The window opening / closing monitoring unit 76 compares the magnetic force level obtained from the window opening / closing detection hall sensor 46 with a determination threshold value from the non-volatile memory 68, determines whether the window is open or closed, and transmits a message indicating the determination result to the wireless transmission unit 66. To send it to the monitoring panel to make an alarm or cancel the alarm.

Furthermore, since the window opening and closing the monitoring unit 76 to deal with the so-called fraud such as open windows in the magnetic force level by bringing the strong magnet from the outside is not below the threshold, the magnetic force level is at the window closing force level On the other hand, a message indicating that the window is opened is transmitted even when a threshold value exceeding a predetermined ratio is exceeded. Also, based on the magnetic force level at the time of locking and unlocking, an appropriate range of the normal use magnetic force level is set, and if the magnetic force level deviates up and down from the appropriate range, it may be determined that fraud has occurred. good. In other words, the upper limit value of the proper use range is set to a value that is higher by a predetermined ratio than the magnetic force level at the time of locking, and the lower limit value is set to a value that is lower by a predetermined ratio than the zero point level at the time of unlocking, so that the magnetic force is within the proper range. It is possible to detect whether there is a level and determine fraud. This is not limited to the measurement of the magnetic force level of the crescent lock 16 , but can also be applied to the measurement of the magnetic force level for window opening / closing detection.

The lock monitoring unit 78 compares the threshold value TH set by the registration processing unit 74 based on the initial registration of the magnetic force level obtained from the lock detection hall sensor 48, and unlocks the crescent lock 16 when the threshold value TH or less is reached. A message indicating unlocking is transmitted from the wireless transmission unit 66 to the monitoring panel to give an alarm. Further, the lock monitoring unit 78 wirelessly transmits a message to that effect to the monitoring panel even when it returns to normal after detecting unlocking.

In addition to the transmission of a message based on the judgment of the window opening / closing monitoring unit 76 and the lock monitoring unit 78, the communication control unit 80 transmits a regular notification message at regular time intervals.

  FIG. 6 is an explanatory diagram showing the relationship between the crescent lock detection magnet 20 and the crescent lock detection hall sensor 48 in the present embodiment. In FIG. 6, a lock detection hall sensor 48 is disposed at the crescent lock-side end of the apparatus main body 22 in the window opening / closing detection apparatus 10, and a conical magnetic collector 26 housed in the cover member 24 in front (downward) thereof. Is arranged. A battery 44 is disposed behind (above) the hall sensor 48 for locking detection.

  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 an amplifier, and read as a magnetic force level (AD conversion value) by the AD conversion port.

  Also, if the device main body and magnet are placed close to each other after shipment from the factory, the internal circuits and components, or the mounting surface of the device main body may be magnetized, and the magnetic force level detected by the Hall sensor at that time increases. Offset.

Figure 7 is a graph showing the AD conversion characteristics of the magnetic level detection signal by the AD conversion port 7 2 of FIG. The crescent lock detection hall sensor 48 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.

  The magnetic level detection signal from the lock detection hall sensor 48 is amplified by the amplifier 54. As the amplifier 54, a differential amplifier circuit is usually used. The magnetic force level detection signal (voltage signal) amplified by the amplifier 54 is converted into, for example, 8-bit magnetic force level data by the AD conversion port 72.

  The conversion characteristic of the AD conversion port 72 has a value of 0 to 256 as a decimal AD conversion value as shown by the vertical axis in FIG. 7, and an input positive polarity magnetic level detection signal 0 to + Vmax is converted into an AD conversion value. Conversion to 128 to 256, and the input negative magnetic level detection signals 0 to -Vmax are converted to AD conversion values 128 to 0.

FIG. 8 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. Note that the actual conversion characteristics of the AD conversion port 7 2 becomes as shown in FIG. 7, in the FIG. 8, for simplicity of description, regardless of the polarity of the magnetic force level detection signal, the AD conversion value Shown as 0-128.

  Characteristic A in FIG. 8 is a case where the influence is caused by the magnetization of the peripheral member, and AD is a magnetic level when the distance h to the crescent lock detection magnet 20 in FIG. 6 is changed to h = 0 to 40 mm. The conversion value is shown.

  Here, for example, if the distance h to the crescent lock detection magnet 20 is h = 20 mm, the magnetic force level Vs corresponding to the point P of the characteristic A is initially registered. The determination threshold value TH is set as a value obtained by multiplying a predetermined ratio of the initially registered magnetic force level Vs.

  On the other hand, the characteristic B is a case where it is not affected by magnetization, and in this case, the characteristic is lowered by the magnetization level. In the present embodiment, the initial registration of the magnetic force level is performed for the characteristic A including the offset due to the magnetization of the peripheral member, and the initial registration of the magnetic force level at the factory shipment stage is actually performed according to the characteristic B that does not include the magnetization. Prevents initial registration of different magnetic force levels.

If the initial registration of the magnetic force level according to the characteristic B not including the influence of magnetization is performed for the same distance h, the determination threshold value set by multiplying the registered magnetic force level by a predetermined ratio is calculated by the characteristic A. becomes lower than the determination threshold, decreases the detection sensitivity unlocking crescent lock 16, not detected unlocked unless turned considerably crescent lock 16 in the unlocking direction, a problem occurs such as delayed unlocking detection.

  FIG. 9 is a flowchart showing the window opening / closing detection process of the present embodiment by the processor of FIG.

  In FIG. 9, when the battery 44 is turned on and the power is turned on, an initialization process and a self-diagnosis process are executed in step S1. If there is no abnormality, the process proceeds to step S2, and the window opening / closing stored in the nonvolatile memory 68 is performed. Read data including decision threshold.

  Subsequently, the process proceeds to step S3, where it is determined whether or not the registration mode is selected. If it is the registration mode, the process proceeds to step S4, and a threshold value setting for detecting the opening and closing of the crescent lock 16 based on the initial registration of the magnetic force level by the lock detection hall sensor 48 is set. The registration process including is executed. As described above, the registration mode is started by operating the registration switch 60 with the cover member 24 removed as shown in FIG.

  Subsequently, in step S5, it is determined whether or not a predetermined monitoring cycle has been reached. If it is determined that the monitoring cycle has been reached, low battery monitoring processing for the battery 44 is executed in step S6. At this time, if the battery voltage drops below a specified voltage, a message indicating a low battery is wirelessly transmitted to the monitoring panel to display a failure.

  Next, in step S7, a window opening / closing monitoring process is executed, and when a window opening or window closing is determined, a message indicating the contents is transmitted to the monitoring board. In step S8, a lock monitoring process is executed, and when unlocking or subsequent locking is determined, a message indicating the contents is transmitted to the monitoring board. Subsequently, in step S9, it is determined whether the regular notification time has elapsed, and if it is determined that the process has elapsed, the process proceeds to step S10, where a periodic notification process for transmitting a periodic notification message to the monitoring panel is performed.

  FIG. 10 is a flowchart showing details of the registration process in step S4 of FIG. In FIG. 10, first, in step S11, it is determined whether the registration switch 60 is turned on. For the initial registration of the magnetic force level, the open / close lever 18 is operated to the unlocked position and the crescent lock detecting magnet 20 is set 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 S12, the red LED 56a blinks, and the registration mode is started in step S13.

  In the registration mode, it is determined whether or not a predetermined time, which is a registerable period, has elapsed by the timer started at the start of the registration mode in step S14, and the process proceeds to step S15 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 S16. When the effective level is obtained, the process proceeds to step S17, and the magnetic force level Vs is stored in the nonvolatile memory 68. Remember as.

When the magnetic force level Vs is effectively initially registered in the nonvolatile memory 68, the green LED 56b of the display unit 56 is turned on in step S18 to notify the completion of the initial registration. When the initial registration is completed, a value obtained by multiplying the magnetic force level Vs initially registered in step S19 by a predetermined ratio is calculated and registered in the nonvolatile memory 68 as a determination threshold TH for determining whether the crescent lock 16 is unlocked or unlocked, and in step S20. The locking monitoring unit 78 starts monitoring the locking of the crescent lock 16 .

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 S16, since the magnetic force level exceeding the effective level cannot be obtained, it is determined in step S14 that the registerable period has elapsed, and the process proceeds to step S21, where the red LED 56a is switched from blinking to lighting, and the initial registration is failed. displayed, and registers the error condition of the registration process in step S22, is not performed locking monitor Crescent lock by lock monitoring unit 78.

  In the above embodiment, the determination threshold is set by multiplying the initially registered magnetic force level by a predetermined ratio. However, if the offset of the Hall sensor itself is known in advance, the offset is shipped from the factory. Measured in stages and stored in non-volatile memory. When calculating the judgment threshold from the initially registered magnetic force level, the magnetic force level change amount is obtained by subtracting the offset from the magnetic force level, and this change amount is multiplied by a predetermined ratio. An offset may be added to the value to obtain the determination threshold TH.

In the above embodiment, the determination threshold value for crescent lock monitoring is taken as an example. Similarly, for window opening / closing monitoring, similarly, the magnetic field level is initially registered at the installation site and the window opening / closing determination threshold value is set. You may do it.
Further, in the above-described embodiment, the crescent lock is pivotally operated as the open / close lock to control the open / close. However, the present invention is not limited to this. For example, the door is opened / closed by sliding the open / close lever up and down. Even so long as it can detect the open / closed state at the position of the magnet.

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

Explanatory drawing which showed the installation state of the window opening / closing detection apparatus by this invention Explanatory drawing which showed the relationship between a hall sensor and a magnet in the window opening / closing detection of FIG. Assembly exploded view showing an embodiment of a window opening and closing detection device according to the present invention Explanatory drawing which showed the state which removed the cover member from the apparatus main body about the window opening / closing detection apparatus by this embodiment The block diagram which showed the circuit structure of the window opening / closing detection apparatus by 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 AD conversion characteristic of the magnetic level detection signal by the AD conversion port of FIG. The graph which showed the relationship of the magnetic force level detected with the Hall sensor with respect to the distance from the apparatus lower end in this embodiment to a crescent lock detection magnet The flowchart which showed the window opening / closing detection process of this embodiment by the processor of FIG. The flowchart which showed the detail of the registration process in step S4 of FIG.

Explanation of symbols

10: Window open / close detection devices 12a, 12b: Window sash 14: Window open / close detection magnet 16: Crescent lock 18: Open / close lever 20: Crescent lock detection magnet 22: Device main body 24: Cover member 46: Window open / close detection hall sensor 48: Lock detection hall sensor 74: Registration processing unit 76: Window open / close monitoring unit 78: Locking monitoring unit 80: Communication control unit

Claims (6)

In a window opening / closing detection device capable of monitoring an opening / closing state of a window and an opening / closing state of a crescent lock provided on the window,
A lock detection magnet disposed on an open / close lever of the crescent lock provided on one of the windows ;
An apparatus body disposed on one of the windows ;
A window opening / closing detection magnet disposed on the other side of the window;
With
The apparatus main body is
A magnetic detection element for detecting a lock for detecting a magnetic force level of the lock detection magnet;
A magnetic detection element for window opening and closing detection for detecting a magnetic force level of the window opening and closing detection magnet;
A manually operable registration control,
A processing circuit section;
With
The processing circuit unit is
The initial registered magnetic force level with the work by the registration operation unit of the operation, the magnetic force level in locked position of said opening lever detected by the lock detecting magnetic sensing element is initially registered when a predetermined effective level A registration processing unit for setting a determination threshold for detecting the open / closed state of the crescent lock based on
The change of the magnetic force level of the lock detection magnet due to the operation of the open / close lever is monitored, and the open / close state of the crescent lock is determined by comparing the magnetic force level detected by the lock detection magnetic detection element and the set determination threshold value. A lock monitoring unit;
Changes in the magnetic force level of the window opening / closing detection magnet due to the opening / closing of the window are monitored, and the opening / closing state of the window is determined by comparing the magnetic force level detected by the magnetic detection element for window opening / closing detection with a judgment threshold value registered in advance. A window open / close monitoring unit for judging,
A window open / close detection device comprising:
In the window opening and closing monitoring device according to claim 1,
The processing circuit unit does not start the monitoring operation by the lock monitoring unit when the magnetic force level detected by the lock detection magnetic sensing element at the initial registration of the magnetic force level is not a predetermined effective level. Open / close detection device.

In the window opening and closing monitoring device according to claim 1,
The device body includes a first display unit and second display unit,
The registration processing unit operates the first display unit and starts a timer when the operation is started by the operation of the registration operation unit, and the initial registration of the magnetic force level is completed within a set time by the timer. If the operation of the first indicator and operating said second indicator to stop and start monitoring operation by the locking monitoring unit and window opening and closing the monitoring unit, the initial registration of the force level within the set time If it is not complete, the window opening and closing the monitoring unit window opening and closing detecting apparatus characterized by starting the monitoring operation by without starting the monitoring operation by the locking monitor and maintain the operation of the first display unit.
In a window opening / closing detection device capable of monitoring an opening / closing state of a window and an opening / closing state of a crescent lock provided on the window,
A lock detection magnet disposed on an open / close lever of the crescent lock provided on one of the windows;
An apparatus body disposed on one of the windows;
A window opening / closing detection magnet disposed on the other side of the window;
With
The apparatus main body is
A magnetic detection element for detecting a lock for detecting a magnetic force level of the lock detection magnet;
A magnetic detection element for window opening and closing detection for detecting a magnetic force level of the window opening and closing detection magnet;
A manually operable registration control,
A processing circuit section;
With
The processing circuit unit is
When the magnetic force level at the locking position of the opening / closing lever detected by the lock detection magnetic sensing element is a predetermined effective level, the initial registration is performed and the initial registration is performed based on the initial registered magnetic force level. And a threshold value for detecting the open / closed state of the crescent lock is set. A registration processing unit for setting a determination threshold for detecting the open / closed state of the window based on the registered magnetic force level;
The change of the magnetic force level of the lock detection magnet due to the operation of the open / close lever is monitored, and the crescent lock is compared by comparing the magnetic force level detected by the lock detection magnetic detection element with a determination threshold value for detecting the open / close state of the crescent lock. A locking monitoring unit for determining the open / closed state of
Changes in the magnetic force level of the window opening / closing detection magnet due to the opening / closing of the window are monitored, and a comparison is made between the magnetic force level detected by the magnetic detection element for window opening / closing detection and a determination threshold value for detecting the opening / closing state of the window. A window open / close monitoring unit for determining an open / close state;
A window open / close detection device comprising:
In the window opening and closing monitoring device according to claim 4 ,
When the magnetic force level detected by the lock detection magnetic sensing element is not a predetermined effective level at the initial registration of the magnetic force level , the processing circuit unit does not perform the monitoring operation by the lock monitoring unit, and detects the window opening / closing. The window opening / closing detection apparatus , wherein the window opening / closing monitoring unit does not perform a monitoring operation when the magnetic force level detected by the magnetic sensing element is not a predetermined effective level .
5. The window opening / closing monitoring device according to claim 1 or 4 , wherein the window opening / closing detection magnetic detection element and the lock detection magnetic detection element are hall sensors.

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