Customizable security alarm system comprising RFID tags and method of installation thereof

Abstract

A security alarm system is provided. The system includes an RFID tag mounted on a first of a window / door and a frame thereof. The system includes a sensor having an RFID reader mounted on a second of the window / door and the frame. A distance between the sensor and the RFID tag changes as the window / door opens. The sensor includes a signal range adjuster whose actuation alters a range at which the sensor can read the RFID tag. The system includes a control panel. When the distance between the sensor and the RFID tag increases beyond a threshold distance so altered and the sensor cannot read the RFID tag, the sensor signals the control panel to trigger an alarm.

Description

Technical Field

[0001] A security alarm system is provided. Specifically, a customizable security alarm system including RFID tags and its installation method are provided. Background Technology

[0002] International Patent Application Publication No. WO / 2003 / 046855A1 discloses a security sensor system. The security sensor system includes a window frame defining a window, a window sash movable relative to the window frame between an open position and a closed position, and a sensor unit embedded in the window frame. The sensor unit includes a housing having an inner end within the window frame, an outer end at the surface of the window frame, and a flexible quarter-wavelength antenna extending from the housing, for example, longitudinally along the window frame. The housing contains a sensor switch, a microprocessor, an RF transmitter, and a battery for transmitting signals to a master station or controller. The security sensor system also includes a magnet mounted in the window sash for actuating the sensor switch.

[0003] U.S. Patent No. 6,577,238 to Whitesmith et al. discloses a system for monitoring the location of one or more RFID tags. The system includes a detector incorporated with a circuitry for detecting changes within the range of the RFID tag from the detector and for triggering an alarm if the detected change within the RFID tag range exceeds a predetermined threshold or if the RFID radio tag is undetectable by the detector. For example, range can be detected by measuring the time of the radio signal returned from the tag, by measuring the strength of the radio signal returned from the tag, or by detecting changes in the periodic intervals of the tag's transmitted energy. Summary of the Invention

[0004] This article discloses and aims to provide an improved security alarm system and its installation method.

[0005] Therefore, a security alarm system is provided. The system includes an RFID tag mounted on a firstly attached window / door and its frame. The system also includes a sensor with an RFID reader mounted on a secondly attached window / door and its frame. The distance between the sensor and the RFID tag changes as the window / door is opened. The sensor includes a signal range adjuster, the actuation of which alters the range at which the sensor can read the RFID tag. The system includes a control panel. When the distance between the sensor and the RFID tag increases beyond a threshold distance that has been changed, and the sensor can no longer read the RFID tag, the sensor sends a signal to the control panel to trigger an alarm.

[0006] A method for installing a security alarm system is also provided. The system includes an RFID tag and a sensor with an RFID reader. The method includes coupling a first of the RFID tag and the sensor to a window / door and its frame. The method includes coupling a second of the RFID tag and the sensor to the window / door and its frame. The method includes opening the window / door to a distance determined by a user. The method includes adjusting the maximum signal range of the sensor (beyond which the sensor cannot read the RFID tag) to correspond to the user-determined distance. The method includes providing a control panel that, when the distance between the sensor and the RFID tag increases beyond the adjusted maximum signal range, signals the sensor to the control panel to trigger an alarm.

[0007] Further, a method for installing a security alarm system according to another aspect is provided. The method includes coupling a first of an RFID tag and a sensor having an RFID reader to a window / door and its frame. The method includes coupling a second of an RFID tag and a sensor to a second window / door and its frame. The method includes determining whether the RFID reader is within range of the RFID tag, wherein if the RFID reader is not within range of the RFID tag, the method includes incrementally increasing the range of the RFID reader via a signal range adjuster until the sensor reads the RFID tag. The method includes providing a control panel, wherein if the distance between the sensor and the RFID tag subsequently increases and the RFID reader is no longer able to read the RFID tag, the sensor signals the control panel to trigger an alarm. Attached Figure Description

[0008] The invention will be more readily understood from the following description of preferred embodiments of the invention, given only by way of example, with reference to the accompanying drawings, in which:

[0009] Figure 1 Perspective views of RFID tags, control panels of security alarm systems, and sensors used in security alarm systems;

[0010] Figure 2 A perspective view showing an RFID tag and a sensor used as a window sensor in a first configuration of a security alarm system, wherein the window is closed, the sensor operates in default settings, and the electromagnetic field is within the range of the RFID tag and extends beyond the RFID tag.

[0011] Figure 3A perspective view showing an RFID tag and a sensor used as a window sensor in a first configuration of a security alarm system, wherein the window is open at a distance D1, the sensor is in its default settings, and the distance D1 corresponds to the maximum signal range of the sensor in its default settings (the sensor cannot read the RFID tag beyond the range).

[0012] Figure 4 A perspective view showing an RFID tag and a sensor used as a window sensor in a first configuration of a security alarm system, wherein the window is open at a distance D2, the sensor operates at its default settings and its electromagnetic field is outside the range of the RFID tag;

[0013] Figure 5a The flowchart illustrates the algorithm of a security alarm system, based on the first aspect, for the operation of a signal range adjuster and a microprocessor used in the installation and customization of security alarm systems.

[0014] Figure 5b The flowchart illustrates the algorithm of a security alarm system, based on the second aspect, for the operation of a sensor signal range adjuster and a microprocessor used in the installation and customization of the security alarm system.

[0015] Figure 6 For similar Figure 4 A perspective view showing an RFID tag and a sensor used as a window sensor in a first configuration of a security alarm system, wherein the window opening distance D2 and a signal range adjuster are actuated such that the sensor operates under an incrementally amplified electromagnetic field that is outside the range of the RFID tag.

[0016] Figure 7 For similar Figure 6 A perspective view showing an RFID tag and a sensor used as a window sensor in a first configuration of a security alarm system, wherein the window opening distance D2 and a signal range adjuster are actuated such that the sensor operates under another incrementally amplified electromagnetic field and the other incrementally amplified electromagnetic field is within the range of the RFID tag;

[0017] Figure 8 For similar Figure 2 A perspective view showing an RFID tag and a sensor used as a window sensor in a first configuration of a security alarm system, wherein the window is closed, a signal range adjuster is actuated to make the sensor operate under an increasingly weakened / reduced electromagnetic field, and the maximum signal range of the sensor is adjusted to correspond to the sensor being able to read the RFID tag when the window is closed and the sensor being unable to read the RFID tag when the window is open.

[0018] Figure 9To demonstrate the substrate strip with multiple RFID tags and its use as a window sensor in a second configuration of a security alarm system. Figure 1 A perspective view of the sensor, where the window is open at a distance D1 and the sensor is displayed in its default settings;

[0019] Figure 10 To demonstrate the use of slim RFID tags and their application as window sensors in the third configuration of a security alarm system. Figure 1 A perspective view of the sensor, where the window is open at a distance D1 and the sensor is displayed in its default settings;

[0020] Figure 11 A perspective view showing an RFID tag and a sensor used as a window sensor in a fourth configuration of a security alarm system, where the window is closed and the sensor is shown in its default settings;

[0021] Figure 12 A perspective view showing the RFID strip and the sensor used as a window sensor in the fifth configuration of the security alarm system, where the window is closed and the sensor is shown in its default settings;

[0022] Figure 13 A perspective view showing a slim RFID tag and a sensor used as a window sensor in a sixth configuration of a security alarm system, where the window is closed and the sensor is shown in its default settings;

[0023] Figure 14 A perspective view showing the RFID tag and sensor used as a door sensor in the seventh configuration of the security alarm system, where the door is closed and the sensor is shown in its default settings;

[0024] Figure 15 A perspective view showing the RFID tag and the sensor used as a door sensor in the seventh configuration of the security alarm system, where the door is open at a distance D2 and the sensor is shown in its default settings;

[0025] Figure 16 For similar Figure 15 A perspective view showing an RFID tag and a sensor used as a door sensor in the seventh configuration of a security alarm system, wherein the door opening distance D2 and a signal range adjuster are actuated to enable the sensor to operate in an electromagnetic field that is amplified to the range of the RFID tag.

[0026] Figure 17A perspective view showing an RFID tag and a sensor used as a door sensor in a seventh configuration of a security alarm system, wherein the door is closed, a signal range adjuster is actuated to make the sensor operate under an increasingly weakening / reducing electromagnetic field, and the maximum signal range of the sensor is adjusted to correspond to the sensor being able to read the RFID tag when the door is closed and the sensor being unable to read the RFID tag when the door is open.

[0027] Figure 18 A perspective view showing a substrate strip with multiple RFID tags and a sensor used as a door sensor in an eighth configuration of a security alarm system, where the door is closed and the sensor is shown in its default settings;

[0028] Figure 19 A perspective view showing a slim RFID tag and a sensor used as a door sensor in a ninth configuration of a security alarm system, where the door is closed and the sensor is shown in its default settings;

[0029] Figure 20 A perspective view showing an RFID tag and a sensor used as a door sensor in a tenth configuration of a security alarm system, where the door is closed and the sensor is shown in its default settings;

[0030] Figure 21 To illustrate the perspective view of the RFID strip and sensor used as a door sensor in the eleventh configuration of the security alarm system, where the door is closed and the sensor is shown in its default settings; and

[0031] Figure 22 A perspective view showing a slim RFID tag and a sensor used as a door sensor in the twelfth configuration of a security alarm system, where the door is closed and the sensor is shown in its default settings. Detailed Implementation

[0032] Refer to the diagram and refer to it first. Figure 1The image shows a radio frequency identification (RFID) tag 10 and a sensor 20. The sensor includes a housing 22 with a cover 24. A circuit board 26 is housed within the housing 22. The sensor 20 includes a microprocessor 28 and a power supply, in this example a button cell battery 30, each mounted on the circuit board. The sensor 20 includes an RFID reader 32, a radio 34, and an antenna 36, ​​each also mounted on the circuit board 26. The radio and antenna allow the sensor 20 to transmit and receive radio signals. The radio 34 and antenna 36 allow the sensor 20 to communicate with a control panel 40 as part of a wireless security alarm system. A lead 38 is present, which can be electrically and releasably connected to the sensor 20. The lead allows the sensor 20 to communicate with the control panel 40 as part of a wired security alarm system. The sensor 20 communicates with the control panel to trigger an alarm.

[0033] Sensor 20 includes a signal range adjuster 41 mounted on circuit board 26 and partially housed within housing 22. The signal range adjuster may be referred to as an electromagnetic field adjuster or an RFID range adjuster. In this example, the signal range adjuster is manually actuated via a button 43 extending partially through a cover 24 of the housing. The signal range adjuster 41 communicates with microprocessor 28 and RFID reader 32. The signal range adjuster is used to change... Figure 2 What we see is from Figure 1 The strength / magnitude of the electromagnetic field 45 generated by the RFID reader is shown. In this example, the signal range adjuster 41 changes the amount of transmitter power output of the RFID reader 32. The signal range adjuster, in conjunction with the microprocessor 28, allows the power of the RFID reader to be selectively increased or decreased to expand or shrink the range of the RFID reader. Alternatively, the signal range adjuster can change the amount of oscillating current passing through the antenna 47 of the RFID reader. Figure 1 As seen, the range of the RFID tag 10 that the sensor can read is changed by the signal range adjuster 41 activated by button 43.

[0034] Figures 2 to 8 An RFID tag 10 and a sensor 20 serving as a window sensor for window 50 are shown in a first configuration of the security alarm system. The first configuration of the security alarm system is a wireless security alarm system, wherein sensor 20 is mounted on the vertical frame 52 of window 50 and partially on the bottom rail 58 of the window. However, this is not strictly required, and in other embodiments, the sensor may be mounted separately on the bottom rail and spaced apart from the vertical frame, or it may be mounted separately on the vertical frame and spaced apart from the bottom rail.

[0035] RFID tag 10 is mounted on frame 51, and in this example, on side frame 54 of window 50 near its windowsill 56. The window is linearly movable relative to the frame, and in this example, linearly movable vertically along axis 53. Window 50 in Figure 2 The window 50 is fully closed, with its bottom rail 58 abutting its windowsill 56. Sensor 20 operates under default settings, where, when the window is closed, the electromagnetic field 45 is within and extends beyond the RFID tag 10. Therefore, the sensor can read the RFID tag when the window 50 is fully closed, and the window 50 is closed.

[0036] Similarly, as Figure 3 As shown, when window 50 is opened to a threshold distance D1, sensor 20 is also able to read RFID tag 10. The sensor continues to operate at its default settings, where the RFID tag is just within the range of the sensor's electromagnetic field 45. It is desirable to allow window 50 to open partially for ventilation, but not enough to allow an intruder to enter through window 50. When sensor 20 is able to read RFID tag 10, sensor 20 will therefore not trigger an alarm.

[0037] refer to Figure 4 When the window is opened to a value greater than 50 Figure 3 When the threshold distance D1 is reached and the distance D2 is reached, the sensor 20, under its default settings, can no longer read the RFID tag 10 and trigger an alarm.

[0038] As described herein, sensor 20 enables the customization of a threshold distance, exceeding which will trigger an alarm. (Reference) Figure 5a To change the threshold distance and extent at which a window can be opened without triggering an alarm, first activate the signal range adjuster, such as... Figure 5a See box 59 in the image. After this activation... Figure 1 The microprocessor 28 seen in the image determines whether the sensor 20 reads the RFID tag 10, such as... Figure 5a Box 61 in the diagram roughly illustrates this. If the sensor does not read the RFID tag, the microprocessor increases / amplifies the signal incrementally. Figure 6 The electromagnetic field 65 of the sensor 20 causes the signal range adjuster to incrementally increase the range of the RFID reader, such as by... Figure 5a As shown in box 63.

[0039] The microprocessor then determines whether the RFID reader, adjusted incrementally in this manner, is currently capable of reading RFID tags, such as those generated by... Figure 5a As shown in box 67. If not, then the process is selectively repeated, as shown by number 69, until sensor 20 reads. Figure 7 RFID tag 10 is shown in the image. (Reference) Figure 7The modified sensor has an additional, progressively increased / amplified electromagnetic field 71 that currently overlaps with the RFID tag 10, and reads the RFID tag. (Return to Reference) Figure 5a After the microprocessor causes the signal range adjuster to incrementally increase the range of the RFID reader until the sensor reads the RFID tag, the microprocessor calibrates the settings of these adjustments to determine a new / changed threshold distance D2, as seen in box 73. When the distance between the sensor and the RFID tag 10 increases beyond the changed threshold distance and the sensor cannot read the RFID tag, the sensor 20 moves towards... Figure 1 The control panel 40 shown in the image transmits a signal to trigger an alarm.

[0040] The sensor has therefore been... Figure 1 The actuation of the signal range adjuster 41 seen therein is user-customizable to enable... Figure 7 The window 50 seen therein can open at a threshold distance D2, which is greater than... Figure 3 The threshold distance D1 seen in the diagram. The microprocessor may then render the signal range adjuster inoperable and / or disable the signal adjuster until the signal range adjuster is actuated again. Figure 1 The signal range adjuster 41 thus enables the window opening degree to be selectively increased according to the needs of the resident or installer of the sensor 20.

[0041] Similarly, the actuated signal range adjuster can then fully open window 50 to correspond to... Figure 2 The threshold distance D4 is observed. In this way, the range of the RFID reader is amplified, ensuring that no signal is sent to trigger an alarm regardless of how open the window is. This can be convenient for users who want to open windows in the building, while avoiding the need to deactivate the entire building's security alarm system. This ensures that the building remains secure even in unoccupied rooms.

[0042] Conversely and reference Figure 8 The actuated signal range adjuster can limit the extent to which window 50 can be opened, triggering an alarm if the opening exceeds the specified limit. As described herein, sensor 20 allows the user to select a threshold distance that is reduced compared to a threshold distance D1, or to provide no threshold distance, thereby opening window 50 to send a signal to trigger an alarm. Figure 2 The sensor 20, as seen in its default settings, allows the window to open to... Figure 1 The threshold distance D1 is observed. To reduce this distance, the user adjusts the window to a lower position, for example... Figure 2 The closed position as seen in the image. (Reference) Figure 5aNext, the actuation signal range adjuster is activated, as shown in box 59. If, after the actuation signal range adjuster, the microprocessor determines that the sensor has read the RFID tag, then window 50 is in... Figure 2 In the case of the closed position seen above, the microprocessor causes the signal range adjuster to decrease incrementally, such as... Figure 5a See box 75 in the middle.

[0043] The process can be selectively repeated, as shown by digit 77, until sensor 20 stops reading the RFID tag. Thereafter, the microprocessor causes the signal range adjuster to incrementally increase the range of the RFID reader, as seen in box 63. Figure 8 As seen, the modified sensor 20 now has an incrementally decreasing / smaller electromagnetic field 79 that now just overlaps with the RFID tag 10, and reads the RFID tag. (Return to Reference) Figure 5a After the microprocessor causes the signal range adjuster to incrementally increase the range of the RFID reader until the sensor reads the RFID tag, the microprocessor calibrates the settings of these adjustments to determine, for example, a new / changed threshold distance that may correspond to a window that is always closed, as seen in box 73.

[0044] In this example, sensor 20 has therefore been... Figure 1 The actuation of the signal range adjuster 41, as seen in the diagram, is user-customized to send a signal to trigger an alarm when the window is fully open. Actuation of the signal range adjuster when the window is closed thus causes the control panel to trigger an alarm when the window is open. The microprocessor can then deactivate the signal range adjuster and / or render the signal adjuster inoperable until it is actuated again.

[0045] Alternatively and for reference Figure 5b After the microprocessor incrementally reduces the range of the RFID reader (as seen in box 75), it can determine whether the sensor has reached a predetermined minimum threshold level for reading the RFID tag, as seen in box 81. If not, the process of incrementally reducing the range of the RFID reader continues, as indicated by arrow 83. If the microprocessor does determine that the sensor has reached the predetermined minimum threshold level for reading the RFID tag, it calibrates these adjusted settings to determine, for example, a new / changed threshold distance that may correspond to a window that is always closed, as seen in box 73.

[0046] Similarly, the signal range adjuster can be positioned in the window. Figure 2 The actuation occurs when the threshold distance is less than the threshold distance D1 and the threshold distance D3 is less than the threshold distance D1. This may be convenient for the user when they want to open the window to a level less than the sensor's default setting.

[0047] Figure 1The signal range adjuster 41 seen therein thus enables customized opening. Figure 8 The visible window is 50 degrees without triggering an alarm. Selective actuation of the signal range adjuster allows changing the degree to which the window is open without triggering an alarm. Selective actuation of the signal range adjuster allows adjusting the degree to which the user-defined window is open (exceeding which would trigger an alarm) from... Figure 2 The window 50 seen in the image gradually changes its orientation / changes to the fully open position from the fully closed position.

[0048] Actuation of the signal range adjuster when or before opening the window allows the window to be opened by 50 degrees without triggering an alarm.

[0049] A method for installing a security alarm system is also provided. (See reference) Figure 2 The method includes coupling a first of an RFID tag 10 and a sensor 20 to a window 50 and its frame 51. The method also includes coupling a second of an RFID tag and a sensor to a second of the window and frame. In this example, the RFID tag is coupled to frame 51 and the sensor is coupled to window 50. (See reference...) Figure 6 The method includes opening window / door 50 to a user-defined position D2. The method also includes adjusting the maximum signal range of sensor 20 (beyond which the sensor cannot read the RFID tag) to correspond to the user-defined position. In this example, this is achieved by actuating signal range adjuster 41, followed by... Figure 1 The microprocessor 28 seen in the article follows Figure 5a The method comprises adjusting the maximum signal range using the steps described above and as set forth in the text. Figure 1 The control panel 40, as seen herein, triggers an alarm when the distance between the sensor and the RFID tag increases beyond the adjusted maximum signal range, by sending a signal to the control panel 20. The method further includes opening windows / doors to facilitate ventilation and prevent intruders from passing through.

[0050] Furthermore, a method for installing a security alarm system is provided. (See reference) Figure 2 The method includes coupling a first of an RFID tag 10 and a sensor 20 to a window 50 and its frame 51. The method also includes coupling a second of an RFID tag and a sensor to a second of the window and frame. In this example, the RFID tag is coupled to frame 51 and the sensor is coupled to window 50. (See reference...) Figure 6 The method is included in this example via Figure 1The microprocessor 28, as seen in the diagram, determines whether the RFID reader 32 is within range of the RFID tag 10. If the RFID reader is not within range of the RFID tag, the method includes incrementally increasing the range of the RFID reader via a signal range adjuster 41 until the sensor... Figure 5a The steps described herein are for reading RFID tags. The method includes providing a control panel 40, which sends a signal to the control panel to trigger an alarm if the distance between the sensor and the RFID tag subsequently increases and the RFID reader is no longer able to read the RFID tag.

[0051] As described above, if Figure 1 If, after the determination step, the RFID reader 32 is within range of the RFID tag 10, then the method includes incrementally reducing the range of the RFID reader via a signal range adjuster until the distance between the sensor and the RFID tag equals a threshold distance. If the distance exceeds the threshold distance, the sensor sends a signal to the control panel to trigger an alarm. Figure 5b As described in [the document]. Alternatively, if the RFID reader is within range of the RFID tag after the determining step, then the method includes incrementally decreasing the range of the RFID reader until the sensor no longer reads the RFID tag, and then incrementally increasing the range of the RFID reader via a signal range adjuster until the sensor reads the RFID tag again, as [example follows]. Figure 5a As explained in the text.

[0052] Figure 9 A substrate strip 110 with multiple RFID tags is shown, namely a first RFID tag 112, a second RFID tag 114, a third RFID tag 116, and a fourth RFID tag 118. In a second configuration of the security alarm system, the substrate strip 110 and sensor 20 serve as window sensors for window 50. The second configuration of the security alarm system is a wireless security alarm system, wherein sensor 20 is mounted on the vertical frame 52 of window 50 and substrate strip 110 is mounted on frame 51, in this example on the side frame 54 of window 50 near its windowsill 56.

[0053] When the window is fully closed, the sensor can read at least the first RFID tag 112. When the window is opened to a first threshold distance D1, the sensor 20 can no longer read the first RFID tag. When the window / door is opened to the first threshold distance D1, the sensor 20 can read at least the second RFID tag 114 and signals to the control panel that the window / door is open to the first threshold distance. When the window / door is opened to a second threshold distance (not shown) greater than the first threshold distance, the sensor can no longer read the second RFID tag. When the window is opened to the second threshold distance, the sensor 20 can read at least the third RFID tag 116 and signals to the control panel that the window is open to the second threshold distance. The security alarm system thus determines the degree of window opening. Figure 1 The control panel 40 or other components of the security alarm system are further configured to communicate wirelessly with a handheld device to remotely provide the homeowner with information about the extent to which windows are opened and about the status of the security alarm system.

[0054] Sensor 20 includes a signal range adjuster 41 and is configured to work in conjunction with the above-mentioned... Figures 1 to 8 The sensor 20 described in the text operates in a largely similar manner.

[0055] Figure 10 Instead of a substrate strip, a thin RFID tag 111 is displayed, which has multiple sub-segments 113, 115, 117, and 119 for determining the degree to which the window is open, instead of multiple RFID tags. In a third configuration of the security alarm system, the thin RFID tag and sensor 20 are used as window sensors for window 50. The third configuration of the security alarm system is a wireless security alarm system, in which sensor 20 is mounted on the vertical frame 52 of window 50 and the thin RFID tag 111 is mounted on frame 51, in this example on the side frame 54 of window 50 near its windowsill 56. The thin RFID tag and Figure 9 The substrate strip with RFID tags operates in a similar manner, wherein each sub-segment 113, 115, 117, and 119 of the elongated RFID tag is as described above for... Figure 9 The corresponding RFID tags 112, 114, 116, and 118 of the described substrate strip 110 perform similar functions. Sensor 20 includes a signal range adjuster 41 and is configured to work in conjunction with the aforementioned... Figures 1 to 8 The sensor 20 described in the text operates in a largely similar manner.

[0056] Figure 11The fourth configuration of the security alarm system shows an RFID tag 10 and a sensor 20 used as a window sensor for window 50. This fourth configuration is a wired security alarm system, where the RFID tag 10 is mounted on the vertical frame 52 of window 50 and the sensor 20 is mounted on the frame 51, in this example on the side frame 54 of window 50 near its windowsill 56. This allows for wiring of the sensor 20 in the fourth configuration of the security alarm system. The sensor 20 includes a signal range adjuster 41 and is configured to work in conjunction with the aforementioned... Figures 1 to 8 The sensor 20 described in the text operates in a largely similar manner.

[0057] Figure 12 The fifth configuration of the security alarm system illustrates a substrate strip 110 with RFID tags 112, 114, and 116, and a sensor 20 serving as a window sensor for window 50. This fifth configuration is a wired security alarm system, where the substrate strip 110 is mounted on the vertical frame 52 of window 50 and the sensor 20 is mounted on the frame 51, in this example on the side frame 54 of window 50 near its windowsill 56. This allows for wiring of the sensor 20 in the fifth configuration of the security alarm system and enables connection to… Figure 9 It operates in a largely similar manner to that described above. Sensor 20 includes a signal range adjuster 41 and operates in a manner similar to that described above. Figures 1 to 8 The sensor 20 described in the text operates in a largely similar manner.

[0058] Figure 13 The sixth configuration of the security alarm system illustrates an elongated RFID tag 111 and a sensor 20 used as a window sensor for window 50. This sixth configuration is a wired security alarm system, in which the elongated RFID tag 111 is mounted on the vertical frame 52 of window 50 and the sensor 20 is mounted on the frame 51, in this example on the side frame 54 of window 50 near its windowsill 56. This allows for wiring of sensor 20 in the sixth configuration of the security alarm system and enables connection to… Figure 10 It operates in a largely similar manner to that described above. Sensor 20 includes a signal range adjuster 41 and operates in a manner similar to that described above. Figures 1 to 8 The sensor 20 described in the text operates in a largely similar manner.

[0059] Figures 14 to 17The seventh configuration of the security alarm system shows an RFID tag 10 and a sensor 20 used as a door sensor for door 60. This seventh configuration is a wireless security alarm system, in which the RFID tag 10 is mounted on the frame 85, in this example on the side frame 64 of door 60 near its windowsill 66, and the sensor 20 is partially mounted on the vertical frame 62 of door 60 and partially on the bottom rail 68 of door 60. However, this is not strictly required, and in other embodiments, the sensor may be mounted separately on the bottom rail and spaced apart from the vertical frame, or separately on the vertical frame and spaced apart from the bottom rail. In this example, door 60 can move linearly in the horizontal direction relative to frame 85 along a horizontal axis 87.

[0060] Door 60 Figure 14 When the door 60 is fully closed, its vertical frame 62 is adjacent to its side frame 64. Sensor 20 can read RFID tag 10 and transmit a signal that the door 60 is closed when the door 60 is fully closed. (Reference) Figure 15 When the door 60 is opened to a distance D2, the sensor 20, which is in its default settings, can no longer read the RFID tag 10 and triggers an alarm.

[0061] Sensor 20 includes a signal range adjuster 41, which allows for selectively increasing the sensor's range so that an alarm is not triggered until the door is opened beyond a distance D2, for example... Figure 16 As seen in the image. The signal range adjuster also allows for a reduction in the sensor's range, enabling an alarm to be triggered when the door is fully open, such as... Figure 17 As seen in the image. Signal range adjuster 41 to... Figures 1 to 8 The sensor 20 described herein operates in a largely similar manner and therefore will not be described in further detail.

[0062] Figure 18 The eighth configuration of the security alarm system shows a substrate strip 110 with RFID tags 112, 114, and 116, and a sensor 20 used as a door sensor for door 60. This eighth configuration is a wireless security alarm system, where sensor 20 is mounted on the vertical frame 62 of door 60 and substrate strip 110 is mounted on frame 85, in this example on the door sill 66. Sensor 20 includes a signal range adjuster 41 and is configured to work in conjunction with the aforementioned... Figures 1 to 8 The sensor 20 described in the text operates in a largely similar manner.

[0063] Figure 19The ninth configuration of the security alarm system demonstrates an elongated RFID tag 111 and a sensor 20 used as a door sensor for door 60. This ninth configuration is a wireless security alarm system, wherein sensor 20 is mounted on the vertical frame 62 of door 60 and the elongated RFID tag 111 is mounted on frame 85, in this example on the door sill 66. Sensor 20 includes a signal range adjuster 41 and is configured to work in conjunction with the aforementioned... Figures 1 to 8 The sensor 20 described in the text operates in a largely similar manner.

[0064] Figure 20 The tenth configuration of the security alarm system shows an RFID tag 10 and a sensor 20 used as a door sensor for door 60. The tenth configuration is a wired security alarm system, where the RFID tag 10 is mounted on the vertical frame 62 of door 60 and the sensor 20 is mounted on the frame 85, in this example on the side frame 64 of door 60 near its windowsill 66. This allows for wiring of sensor 20 in the tenth configuration of the security alarm system. Sensor 20 includes a signal range adjuster 41 and is configured to work in conjunction with the aforementioned... Figures 1 to 8 The sensor 20 described in the text operates in a largely similar manner.

[0065] Figure 21 A substrate strip 110 with RFID tags 112, 114, 116, and 118 is shown in the eleventh configuration of the security alarm system, along with a sensor 20 serving as a door sensor for door 60. The eleventh configuration of the security alarm system is a wired security alarm system, wherein sensor 20 is mounted on frame 85, in this example on the windowsill 66 of door 60, and substrate strip 110 is mounted on the bottom rail 68 of door 60. This allows for wiring of sensor 20 in the eleventh configuration of the security alarm system. Sensor 20 includes a signal range adjuster 41 and is configured to work in conjunction with the aforementioned... Figures 1 to 8 The sensor 20 described in the text operates in a largely similar manner.

[0066] Figure 22 A slim RFID tag 111 and a sensor 20 serving as a door sensor for door 60 are shown in the twelfth configuration of the security alarm system. The twelfth configuration of the security alarm system is a wired security alarm system, wherein sensor 20 is mounted on frame 85, in this example on the windowsill 66 of door 60, and the substrate strip 110 is mounted on the bottom rail 68 of door 60. This allows for wiring of sensor 20 in the twelfth configuration of the security alarm system. Sensor 20 includes a signal range adjuster 41 and is configured to work in conjunction with the aforementioned... Figures 1 to 8 The sensor 20 described in the text operates in a largely similar manner.

[0067] It should be understood that many variations are possible within the scope of the invention described herein. Those skilled in the art will understand that many of the details provided above are merely illustrative and are not intended to limit the scope of the invention, which should be determined at least by reference to the appended claims.

Claims

1. A security alarm system for a window / door, the window / door being movable relative to its frame, the security alarm system comprising: A radio frequency identification (RFID) tag and a sensor including an RFID reader, wherein the RFID tag is mounted on the window / door and the sensor is mounted on the frame; or the RFID tag is mounted on the frame and the sensor is mounted on the window / door, the distance between the sensor and the RFID tag changing as the window / door is opened; and the sensor includes a signal range adjuster, the actuation of which changes the range within which the sensor can read the RFID tag; and A control panel wherein when the distance between the sensor and the RFID tag increases beyond a threshold distance so changed that the sensor cannot read the RFID tag, the sensor signals the control panel to trigger an alarm, and wherein the signal range adjuster allows for customization of the degree to which the window / door can be opened without triggering the alarm.

2. The system of claim 1, wherein the signal range adjuster alters the electromagnetic field generated by the RFID reader.

3. The system of claim 1, wherein the signal range adjuster changes the amount of transmitter power output of the RFID reader.

4. The system of claim 1, wherein the signal range adjuster enables selective increase or decrease of the power of the RFID reader to expand or shrink the range of the RFID reader.

5. The system of claim 1, wherein the RFID reader includes an antenna and wherein the signal range adjuster changes the amount of oscillating current passing through the antenna.

6. The system of claim 1, wherein the sensor comprises a housing, the RFID reader is located within the housing and the signal range adjuster is at least partially located within the housing, and wherein the signal range adjuster is actuated via a button mounted to the housing.

7. The system of claim 1, wherein actuation of the signal range adjuster when the window / door is closed causes the control panel to trigger the alarm when the window / door is open.

8. The system of claim 1, wherein actuation of the signal range adjuster when or before the window / door is opened enables the window / door to be opened without triggering the alarm.

9. The system of claim 1, wherein selective actuation of the signal range adjuster enables the ability to change the degree to which the window / door is opened without triggering the alarm.

10. The system of claim 1, wherein selective actuation of the signal range adjuster enables the user-determined degree of opening the window / door to be incrementally changed from the fully closed position of the window / door toward the fully open position of the window / door, and the alarm is triggered if the degree is exceeded.

11. The system of claim 1, wherein the sensor further comprises a microprocessor, and wherein when the signal range adjuster is actuated, the microprocessor determines whether the sensor reads the RFID tag, and if not, causes the signal range adjuster to incrementally increase the range of the RFID reader until the sensor reads the RFID tag.

12. The system of claim 11, wherein after the microprocessor causes the signal range adjuster to incrementally increase the range of the RFID reader until the sensor reads the RFID tag, the microprocessor causes the signal range adjuster to become inoperable.

13. The system of claim 11, wherein after the microprocessor causes the signal range adjuster to incrementally increase the range of the RFID reader until the sensor reads the RFID tag, the microprocessor causes the signal range adjuster to be inoperable until the signal range adjuster is actuated again.

14. The system of claim 1, wherein the sensor further comprises a microprocessor, and wherein when the signal range adjuster is actuated, the microprocessor determines whether the sensor reads the RFID tag, and if so, the microprocessor causes the signal range adjuster to decrease incrementally until the sensor no longer reads the RFID tag, and thereafter causes the signal range adjuster to increase incrementally until the sensor reads the RFID tag again.

15. A method for installing a security alarm system for a window / door, the system comprising a radio frequency identification (RFID) tag, a sensor having an RFID reader, and a signal range adjuster, the window / door being movable relative to its frame, the method comprising: The RFID tag is coupled to the window / door, and the sensor is coupled to the frame; Alternatively, the sensor can be coupled to the window / door, and the RFID tag can be coupled to the frame; Open the window / door to the location specified by the user; The maximum signal range of the sensor is adjusted by the signal range adjuster to correspond to the position determined by the user. If the signal range is exceeded, the sensor will not be able to read the RFID tag. as well as A control panel is provided that when the distance between the sensor and the RFID tag increases beyond a user-defined position, making it impossible for the sensor to read the RFID tag, the sensor sends a signal to the control panel to trigger an alarm, wherein the signal range adjuster allows for customization of the degree to which the window / door can be opened without triggering the alarm.

16. The method of claim 15, wherein the opening step comprises opening the window / door to facilitate ventilation and prevent intruders from passing through the window / door.

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