Security sensor, locking / unlocking device, and locking / unlocking security system

Abstract

To provide a security sensor capable of being compatible with multiple types of locking / unlocking devices and a locking / unlocking device including the security sensor.SOLUTION: The security sensor includes: a rotation sensor that detects the rotation angle of the locking / unlocking device and outputs a detection signal representing the rotation angle; an unlock determination unit that updates the locking position of the locking / unlocking device by a series of calibration processing by determining the lock / unlock of the locking / unlocking device based on the locking position obtained by the calibration processing and the rotation angle obtained from the detection signal and generates a notification signal representing the determination result; and a notification unit that notifies the unlocking of the locking / unlocking device to the outside based on the notification signal.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a security sensor, a locking / unlocking device, and a locking / unlocking security system. [Background technology]

[0002] Various locking / unlocking devices are known for locking and unlocking fixtures installed in openings of buildings, such as crescent locks and cam latches (see, for example, Patent Document 1). Some locking / unlocking devices incorporate a security sensor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2021-152297 Summary of the Invention [Problem to be solved by the invention]

[0004] Some security sensors detect locking and unlocking by using an acceleration sensor that detects gravitational acceleration. However, security sensors have the problem that they cannot correctly detect locking and unlocking of the locking and unlocking device when the device is not in its normal position due to the way the house is built, etc.

[0005] The present disclosure has been made in consideration of the above-mentioned circumstances, and aims to provide a security sensor that can detect locking and unlocking more accurately than conventional methods, and to provide a locking and unlocking device and a locking and unlocking security system equipped with a security sensor. [Means for solving the problem]

[0006] One aspect of the present disclosure is a security sensor that includes a rotation sensor that detects the rotation angle of the locking / unlocking device and outputs a detection signal indicating the rotation angle, an unlocking determination unit that updates the locking position of the locking / unlocking device through a calibration process, determines whether the locking / unlocking device is locked or unlocked based on the locking position obtained through the calibration process and the rotation angle obtained from the detection signal, and generates an alarm signal indicating the result of the determination, and an alarm unit that notifies the outside world that the locking / unlocking device has been unlocked based on the alarm signal. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a block diagram showing the functional configuration of a locking / unlocking security system A, a security sensor B, and a locking / unlocking device D. FIG. [Figure 2A] FIG. 1 is a first schematic diagram showing a type of locking / unlocking device A. [Figure 2B] FIG. 2 is a second schematic diagram showing the type of locking / unlocking device A. [Figure 2C] FIG. 3 is a third schematic diagram showing a type of locking / unlocking device A. [Figure 3] 10 is a table showing the setting states of DIP_SW4. [Figure 4] 10 is a flowchart showing the calibration process of the security sensor B. [Figure 5] 10 is a flowchart showing normal processing of security sensor B. [Figure 6] 10 is a schematic diagram showing the operation of the locking / unlocking device D. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0008] As shown in Fig. 1, the locking / unlocking security system A according to this embodiment includes a security sensor B and a communication terminal C. The security sensor B is attached to a locking / unlocking device D, detects the locking / unlocking of the locking / unlocking device D, and wirelessly transmits the detection result to the communication terminal C. The communication terminal C notifies the user of the notification received from the security sensor B on its screen or as a sound.

[0009] The locking / unlocking security system A is a system that uses a security sensor B and a communication terminal C to monitor the locking / unlocking of a locking / unlocking device D. The locking / unlocking security system A realizes home security by notifying the communication terminal C of the locking / unlocking state of the locking / unlocking device D detected by the security sensor B.

[0010] First, the locking / unlocking device D according to this embodiment will be described in detail. The locking / unlocking device D is a mechanical security device that is attached to entrances and windows of a building to prevent intrusion of suspicious persons into the building, and has a built-in security sensor B. As shown in Figs. 2A to 2C, the locking / unlocking device D comes in various types, such as the Smart Crescent X, the Smart Thumbturn Y, and the Smart Cremon Z. The types of the locking / unlocking device D are not limited to these, and include smart cam latches and various other types.

[0011] As shown in Fig. 2A, the smart crescent X includes a base x1 and an operating lever x2 that houses a security sensor B. The smart crescent X is a locking / unlocking device A that is mainly used to lock windows, and can be switched between a locked state and an unlocked state by operating the operating lever x2.

[0012] As shown in Figure 2B, the smart thumb turn Y includes a base y1 and an operating lever y2 that houses a security sensor B. The smart thumb turn Y is a locking / unlocking device A that is primarily used to lock and unlock doors, and is switched between a locked state and an unlocked state by operating the operating lever y2.

[0013] As shown in Fig. 2C, the smart cremone Z comprises a base z1 and an operating lever z2 that houses a security sensor B and has a locking function. The smart cremone Z is a locking / unlocking device A that is mainly used to lock windows, and the state is switched between locked and unlocked by operating the operating lever z2.

[0014] Although not shown, the smart cam latch has a base and an operating lever without a locking function that houses a security sensor B. The smart cam latch is a locking / unlocking device A that is mainly used to lock windows, and the state can be switched between locked and unlocked by operating the operating lever.

[0015] The security sensor B is a detection device that is incorporated into the locking / unlocking device D and detects whether the locking / unlocking device D is locked or unlocked, and has the function of wirelessly communicating with the communication terminal C. As shown in Figure 1, the security sensor B has an alkaline battery B1 and a sensor board B2. As shown in the figure, the sensor board B2 has a connector 1, a DC / DC converter 2, a 3-axis acceleration sensor 3, a DIP_SW 4, a microcomputer 5, an RF circuit 6, an antenna 7, and an LED 8.

[0016] The security sensor B is also called a crime prevention sensor, and is attached to the entrances and windows of the building to detect any intrusions into the building. The security sensor B is built into the locking / unlocking device D that is provided at the entrances and windows of the building, and when it detects any intrusions into the building, it reports the detection of the intrusion to the outside.

[0017] The alkaline battery B1 is the power source for the security sensor B. The alkaline battery B1 is, for example, a relatively small AAA or AA battery, and two batteries B1 are connected in series to supply 3.0 V (volts) DC power to the sensor board B2. In this embodiment, the alkaline battery B1 is used as the power source for the security sensor B, but the power source for the security sensor B is not limited to the alkaline battery B1.

[0018] The power source for the security sensor B is selected appropriately taking into consideration the trade-off between the external size, battery capacity, and power consumption of the sensor board B2, etc. For example, a button battery or a AAA or AA secondary battery may be used as the power source for the security sensor B.

[0019] The sensor board B2 is the main body (sensor main body) of the security sensor B. The sensor board B2 is a single-layer or multi-layer printed circuit board (electronic circuit board) that exhibits the desired electrical performance (sensor function) based on the DC power supplied from the alkaline battery B1. The sensor board B2 detects intrusions into the building based on the DC power and reports the detection results to the communication terminal C using radio waves.

[0020] The connector 1 mechanically accommodates and holds the alkaline battery B1 and has a pair of power terminals that contact the positive and negative terminals of the alkaline battery B1. The connector 1 receives DC power from the alkaline battery B1 via the pair of power terminals and outputs it to the DC / DC converter 2.

[0021] The DC / DC converter 2 is connected to the connector 1 via a predetermined power line and boosts the DC power supplied from the alkaline battery B1 via the connector 1 and the power line. The DC / DC converter 2 is a power converter that converts the 3.0V DC power (primary power) supplied from the alkaline battery B1 into an operating power supply voltage (secondary voltage) for the output destination such as the microcomputer 5. The operating power supply voltage (secondary voltage) is, for example, 5V.

[0022] The three-axis acceleration sensor 3 detects the gravitational acceleration acting on the operating part of the locking / unlocking device D. The three-axis acceleration sensor 3 is an acceleration sensor whose sensitive directions are three orthogonal axes, namely the X-axis, Y-axis, and Z-axis, and detects the gravitational acceleration acting in the X-axis direction, the Y-axis direction, and the Z-axis direction. The three-axis acceleration sensor 3 outputs the detected X-axis acceleration value, the Y-axis acceleration value, and the Z-axis acceleration value to the microcomputer 5.

[0023] The detected X-axis acceleration value, the detected Y-axis acceleration value, and the detected Z-axis acceleration value are physical quantities that indicate the rotation angle θ of the operating part of the locking / unlocking device D. When the locking / unlocking device D is rotated to unlock, the detected X-axis acceleration value, the detected Y-axis acceleration value, and the detected Z-axis acceleration value change uniquely depending on the rotation direction (left or right) and the rotation angle θ.

[0024] The sign (positive or negative) of the change in the detected X-axis acceleration value, the detected Y-axis acceleration value, and the detected Z-axis acceleration value indicates the rotation direction of the operating unit, and the value (amount of change) of the change in the detected X-axis acceleration value, the detected Y-axis acceleration value, and the detected Z-axis acceleration value indicates the rotation angle θ of the operating unit. The three-axis acceleration sensor 3 is a rotation sensor that detects the rotation angle θ of the locking / unlocking device D and outputs the detected X-axis acceleration value, the detected Y-axis acceleration value, and the detected Z-axis acceleration value as detection signals indicating the rotation angle θ.

[0025] The DIP_SW4 is an electronic component that houses multiple slide switches, each with a pair of external connection terminals, and is known as a DIP switch. The DIP_SW4 has three slide switches, corresponding to three binary bits. The DIP_SW4 has a first slide switch corresponding to the first binary bit, a second slide switch corresponding to the second binary bit, and a third slide switch corresponding to the third binary bit.

[0026] In the first to third slide switches, the open state corresponds to, for example, a binary "1," and the closed state corresponds to a binary "0." In the first to third slide switches, the non-conductive state of a pair of external connection terminals corresponds to a binary "1," and the conductive state of a pair of external connection terminals corresponds to a binary "0."

[0027] The setting state of DIP_SW4, that is, the setting states (open / closed states) of the first to third slide switches, corresponds to the type of locking / unlocking device D, as shown in Figure 3. When the first to third bits are all set to "0," this corresponds to a smart crescent (left) with an unlocking direction to the left and an unlocking angle of 8°. When the first bit is set to "1" and the second and third bits are set to "0," this corresponds to a smart cam latch (left) with an unlocking direction to the left and an unlocking angle of 15°.

[0028] When the first and third bits are set to "0" and the second bit is set to "1," it corresponds to the Smart Cremon (Left) with an unlocking direction to the left and an unlocking angle of 10°. When the first and second bits are set to "1" and the third bit is set to "0," it corresponds to the Smart Security Thumbturn (Left) with an unlocking direction to the left and an unlocking angle of 15°. When the first and second bits are set to "0" and the third bit is set to "1," it corresponds to the Smart Crescent (Right) with an unlocking direction to the right and an unlocking angle of 8°.

[0029] The state where the first and third bits are set to "1" and the second bit to "0" corresponds to a smart cam latch (right) with an unlocking direction to the right and an unlocking angle of 15°. The state where the first bit is set to "0" and the second and third bits are set to "1" corresponds to a smart cremone latch (right) with an unlocking direction to the right and an unlocking angle of 10°. The state where all of the first to third bits are set to "1" is unspecified, and the type of the corresponding locking / unlocking device D is not set.

[0030] The Smart Crescent (Left) is a crescent lock that is locked by rotating the operating part to the left, and is a type of locking / unlocking device D that incorporates a security sensor B. The Smart Cam Latch (Left) is a cam latch lock that is unlocked by rotating the operating part 15° to the left, and is a type of locking / unlocking device D that incorporates a security sensor B.

[0031] The Smart Cremon (Left) is a cremon lock that is locked by rotating the operating part 10 degrees to the left, and is a type of locking / unlocking device D that incorporates a security sensor B. The Smart Security Thumbturn (Left) is a thumbturn lock that is locked by rotating the operating part 12 degrees to the left, and is a type of locking / unlocking device D that incorporates a security sensor B.

[0032] The Smart Crescent (Right) is a crescent lock that locks by rotating the operating unit 8 degrees to the right (Right), and is a locking / unlocking device D of a type that incorporates a security sensor B. The Smart Cam Latch (Right) is a cam latch lock that locks by rotating the operating unit 15 degrees to the right (Right), and is a locking / unlocking device D of a type that incorporates a security sensor B. The Smart Cremon (Right) is a cremon lock that locks by rotating the operating unit 10 degrees to the right (Right), and is a locking / unlocking device D of a type that incorporates a security sensor B.

[0033] DIP_SW4 is a lock designation unit that selectively designates the unlocking direction and unlocking angle for a specific locking / unlocking device D into which the security sensor B is incorporated, among the unlocking directions and unlocking angles for multiple types of locking / unlocking devices D, and is set appropriately by an operator when assembling the security sensor B inside the locking / unlocking device D. When assembling the security sensor B into the smart crescent (left), the operator sets DIP_SW4 to the binary number "000".

[0034] When assembling security sensor B to the smart cam latch (left), the worker sets DIP_SW4 to the binary number "001." When assembling security sensor B to the smart cremone (left), the worker sets DIP_SW4 to the binary number "010."

[0035] When assembling security sensor B to the smart security thumb turn (left), the worker sets DIP_SW4 to the binary number "011." When assembling security sensor B to the smart crescent (right), the worker sets DIP_SW4 to the binary number "100."

[0036] When assembling security sensor B to the smart cam latch (right), the worker sets DIP_SW4 to the binary number "101." When assembling security sensor B to the smart cremone (right), the worker sets DIP_SW4 to the binary number "110."

[0037] The microcontroller 5 is an unlocking determination unit that determines whether the locking / unlocking device D is locked or unlocked based on the rotation angle θ (locking position θ0) when the locking / unlocking device D is in the locked state, the X-axis acceleration detection value, the Y-axis acceleration detection value, and the Z-axis acceleration detection value input from the 3-axis acceleration sensor 3, and the setting value of DIP_SW4.

[0038] As described above, the rotation direction of the operating part for unlocking, i.e., the unlocking direction, differs between left and right depending on the type of locking / unlocking device D. The rotation angle θ of the operating part for unlocking, i.e., the unlocking angle, also differs depending on the type of locking / unlocking device D.

[0039] The microcomputer 5 stores in advance in an internal memory the correspondence between the setting value of DIP_SW4 shown in Fig. 3 and the type of locking / unlocking device D, i.e., the unlocking direction and unlocking angle, as information (unlocking determination information) for determining the unlocking of the unlocking device B. Based on the setting value of DIP_SW4, the microcomputer 5 reads out the unlocking direction and unlocking angle corresponding to the setting value from the internal memory, and sets the unlocking direction and unlocking angle as the unlocking determination threshold value.

[0040] The microcomputer 5 acquires the rotation angle θ of the operating unit based on the detected X-axis acceleration value, Y-axis acceleration value, and Z-axis acceleration value input from the triaxial acceleration sensor 3. The microcomputer 5 acquires the locking position θ0 based on a calibration process described later, and stores the locking position θ0 in the internal memory as one piece of unlocking determination information.

[0041] The microcomputer 5 determines whether the locking / unlocking device D is locked or unlocked based on the unlocking determination threshold, the locking position θ0, and the rotation angle θ of the unlocking device B, and generates first and second alarm signals indicating the determination result. The microcomputer 5 outputs the first alarm signal to the RF circuit 6 and the second alarm signal to the LED 8.

[0042] The RF circuit 6 performs a predetermined modulation process on the first annunciation signal input from the microcomputer 5 to generate a transmission signal, which is an RF (radio frequency) signal, and outputs the transmission signal to the antenna 7. The transmission signal is, for example, a radio frequency signal that complies with ZigBee (registered trademark), a well-known short-range wireless communication standard. The RF circuit 6 and the antenna 7 constitute a communication unit that communicates with the communication terminal C.

[0043] The RF circuit 6 generates a transmission signal by performing signal processing in accordance with ZigBee (registered trademark) on the first notification signal input from the microcomputer 5. The transmission signal does not need to be a high-frequency signal in accordance with ZigBee (registered trademark), and may be one in accordance with other wireless communication standards such as Bluetooth (registered trademark) or Wi-Fi (registered trademark).

[0044] The antenna 7 radiates the transmission signal supplied from the RF circuit 6 into the air as radio waves (transmission waves). The antenna 7 is, for example, a relatively small dielectric antenna, and converts the transmission signal into radio waves (transmission waves) with high efficiency (high output). The RF circuit 6 and the antenna 7 constitute a first notification unit that notifies the communication terminal C of the unlocking of the locking / unlocking device D using radio waves (transmission waves) based on the first notification signal.

[0045] The LED 8 is a light emitting diode (LED) that notifies the communication terminal C of the locking / unlocking of the locking / unlocking device D based on a second notification signal input from the microcomputer 5. The LED 8 visually notifies the outside that the locking / unlocking device D has been locked or unlocked, and for example, flashes when the locking / unlocking device D has been unlocked. The LED 8 is a second notification unit that visually notifies the unlocking of the locking / unlocking device D by emitting light based on the second notification signal.

[0046] The communication terminal C is an electronic device with a communication function, such as a smartphone, tablet terminal, or desktop computer, that is carried by the user of the locking / unlocking security system A. In addition to the function of communicating with the security sensor B, the communication terminal C also has the function of generating various instruction signals to be sent to the security sensor B, and the output function of displaying or sounding signals received from the security sensor B.

[0047] The operations of the security sensor B and the locking / unlocking device D according to this embodiment will be described with reference to FIGS.

[0048] First, the calibration process initially performed by the security sensor B will be described with reference to Fig. 4. When the security sensor B receives a calibration start instruction from the communication terminal C (step S1), it shifts its operation mode to the calibration mode. When the security sensor B receives an update instruction following the calibration start instruction (step S3), it changes the rotation angle θ of the locking / unlocking device D. S (Step S4), and the rotation angle θ S is updated to the locked position θ0 (step S5).

[0049] More specifically, a user of the locking / unlocking security system A operates a calibration start instruction button on the operation screen of the monitoring application of the communication terminal C. As a result, a radio wave indicating a calibration start instruction signal is transmitted from the communication terminal C to the security sensor B.

[0050] The antenna 7 of the security sensor B receives the radio wave indicating the calibration start instruction and outputs it as a received signal to the RF circuit 6. The RF circuit 6 demodulates the received signal to reproduce the calibration start instruction signal and outputs the calibration start instruction signal to the microcomputer 5.

[0051] When the microcomputer 5 receives the calibration start instruction signal from the RF circuit 6, it shifts its operation mode to the calibration mode. After a certain period of time has passed, the microcomputer 5 receives the detected X-axis acceleration value, the detected Y-axis acceleration value, and the detected Z-axis acceleration value from the triaxial acceleration sensor 3 and calculates the rotation angle θ S Get.

[0052] When the user operates the calibration start instruction button, the communication terminal C displays or outputs a locking instruction as a sound to prompt the user to lock the locking / unlocking device D. The user operates the locking / unlocking device D according to the locking instruction to lock the locking / unlocking device D. The microcomputer 5 acquires the detected X-axis acceleration value, the detected Y-axis acceleration value, and the detected Z-axis acceleration value from the three-axis acceleration sensor 3 at the time when the locking state is set by the user, and calculates the rotation angle θ S Get.

[0053] The microcomputer 5 determines the rotation angle θ S is compared with an evaluation threshold value to evaluate whether or not it is acceptable to recognize the locking position θ0 of the locking / unlocking device D, and if it is acceptable to recognize the locking position θ0 of the locking / unlocking device D, the rotation angle θ S is updated and stored in the internal memory as the new lock position θ0. When the update and storage is completed, the microcomputer 5 generates an update completion signal and outputs it to the RF circuit 6, causing the antenna 7 to emit a radio wave indicating the update completion signal.

[0054] When communication terminal C receives the radio wave indicating the update completion signal, it displays or outputs a sound as a return instruction to prompt security sensor B to return from calibration mode to normal mode. The user performs a return operation in accordance with the return instruction, thereby emitting a radio wave indicating a return instruction signal to normal mode.

[0055] The antenna 7 of the security sensor B receives the radio wave indicating the instruction signal to return to the normal mode and outputs it to the RF circuit 6. The RF circuit 6 reproduces the instruction signal to return to the normal mode and outputs it to the microcomputer 5. When the instruction signal to return to the normal mode is input from the RF circuit 6 (step S6), the microcomputer 5 transitions its own operation mode from the calibration mode to the normal mode (step S7). The transition to the normal mode ends the calibration process.

[0056] During the calibration process, the microcomputer 5 generates a notification signal (calibration notification signal) indicating that the calibration process is being executed, and outputs the signal to the RF circuit 6 and the LED 8. The RF circuit 6 causes the antenna 7 to emit radio waves indicating the calibration notification signal.

[0057] The communication terminal C acquires the calibration notification signal based on the received radio waves, thereby notifying the user that the security sensor B is performing the calibration process. The LED 8 visually notifies the user that the security sensor B is performing the calibration process based on the calibration notification signal.

[0058] Next, normal processing in normal mode will be described with reference to Fig. 5. First, in security sensor B, a setting value for DIP_SW4 is preset according to the type of locking / unlocking device A to be actually installed. For example, when security sensor B is installed in smart crescent X, the setting value for DIP_SW4 is set to "000" by an operator.

[0059] The microcomputer 5 determines whether the locking / unlocking device D is locked or unlocked based on the setting value of the DIP_SW4, and notifies the communication terminal C of the determination result. In the normal operating state of the security sensor B in which power is supplied from the alkaline battery B1 to the sensor board B2, the microcomputer 5 first reads the setting value of the DIP_SW4 (step S1a).

[0060] The microcomputer 5 reads out the unlocking direction and unlocking angle corresponding to the setting value of the DIP_SW4 from the internal memory and sets them as the unlocking determination threshold value (step S2a). The processes of steps S1a and S2a are initial settings in the microcomputer 5.

[0061] After the initial setting is completed, the microcomputer 5 acquires the rotation angle θ at predetermined time intervals (step S3a). The microcomputer 5 acquires the rotation angle θ of the operation unit based on the detected X-axis acceleration value, the detected Y-axis acceleration value, and the detected Z-axis acceleration value input from the triaxial acceleration sensor 3.

[0062] The microcomputer 5 performs an unlocking determination by comparing the acquired rotation angle θ with the unlocking determination threshold value set in step S2, i.e., the unlocking direction and unlocking angle (step S4a). The microcomputer 5 determines that the locking / unlocking device D is unlocked when the sign (positive or negative) of the rotation angle θ matches the unlocking direction and the value of the rotation angle θ exceeds the unlocking angle.

[0063] For example, in the case of the Smart Crescent (Left), the locking direction is to the left, and the locked state is released to an unlocked state by rotating the operation unit 8° to the right as shown in Fig. 6. The microcomputer 5 reads the unlocking direction and unlocking angle of the Smart Crescent (Left) from the internal memory based on the setting value of DIP_SW4 and sets them as the unlocking determination threshold value, thereby determining whether the Smart Crescent (Left) is unlocked.

[0064] On the other hand, if the sign (positive or negative) of the rotation angle θ does not match the unlocking direction, or if it matches but the value of the rotation angle θ does not exceed the unlocking angle, the microcomputer 5 determines that the locking / unlocking device D is not unlocked.

[0065] If the sign (positive or negative) of the rotation angle θ matches the unlocking direction and the value of the rotation angle θ exceeds the unlocking angle, the result of the unlocking determination in step S4a is "Yes." If the sign (positive or negative) of the rotation angle θ does not match the unlocking direction, or if it matches but the value of the rotation angle θ does not exceed the unlocking angle, the result of the unlocking determination in step S4a is "No."

[0066] When the result of the unlocking determination in step S4a is "Yes," the microcomputer 5 generates a first alarm signal and outputs it to the RF circuit 6 (step S5a). The RF circuit 6 generates a transmission signal based on the first alarm signal and supplies power to the antenna 7 (step S6a). The antenna 7 emits a transmission wave (radio wave) based on the transmission signal to the external terminal (step S7a).

[0067] 5, when the result of the unlocking determination is "Yes," the microcomputer 5 generates a second alarm signal in addition to the first alarm signal and outputs it to the LED 8. When the second alarm signal is input from the microcomputer 5, the LED 8 starts to light up to indicate that the locking / unlocking device D is unlocked.

[0068] After notifying the communication terminal C of the unlocking of the locking / unlocking device D, the microcomputer 5 subsequently repeats the process of step S3a. The process of step S3a is also repeated if the unlocking determination of step S4a is "No." The series of processes from steps S3a to S7a is a regular process of the microcomputer 5, and is repeated at predetermined time intervals.

[0069] According to this embodiment, it is possible to provide a security sensor B that can detect locking and unlocking more accurately than conventional methods, a locking and unlocking device D equipped with the security sensor B, and a locking and unlocking security system equipped with the security sensor B and a communication terminal C.

[0070] The present disclosure is not limited to the above-described embodiment, and various modifications are possible.

[0071] (1) Although the security sensor B of the present disclosure performs the calibration process in cooperation with the communication terminal C, the present disclosure is not limited to this. For example, the calibration process may be performed without the intervention of the communication terminal C by adding a function for communicating with the user to the security sensor B.

[0072] (2) In the present disclosure, security sensor B performs calibration, i.e., updates the lock position θ0, based on a calibration start instruction signal received from communication terminal C. However, the present disclosure is not limited to this. For example, security sensor B may voluntarily notify communication terminal C of the need for calibration, and communication terminal C may then transmit a calibration start instruction signal to security sensor B based on the notification, thereby performing calibration.

[0073] (3) The rotation sensor of the present disclosure is not limited to the triaxial acceleration sensor 3 that outputs detected X-axis, Y-axis, and Z-axis acceleration values ​​as detection signals. For example, a sensor that detects the rotation angle θ of the locking / unlocking device D as a physical quantity other than triaxial acceleration may be used as the rotation sensor.

[0074] (4) The notification unit of the present disclosure is not limited to the first notification unit that is configured by the RF circuit 6 and the antenna 7 and that uses radio waves (transmission waves) to notify the communication terminal C of the unlocking of the locking / unlocking device D. A notification unit that uses a communication medium other than radio waves, such as light or sound waves, to notify the communication terminal C of the unlocking of the locking / unlocking device D may also be employed.

[0075] (5) The notification unit of the present disclosure is not limited to the LED 8 that emits light to notify the outside that the locking / unlocking device D has been unlocked. For example, instead of the LED 8, a sound generating device such as a buzzer may be used as the notification unit. [Explanation of symbols]

[0076] A... Locking / unlocking security system, B... Security sensor, C... Communication terminal, B1... Alkaline battery, B2... Sensor board, D... Locking / unlocking device, X... Smart crescent, Y... Smart thumb turn, Z... Smart cremone, 1... Connector, 2... DC / DC converter, 3... 3-axis acceleration sensor (rotation sensor), 4... DIP_SW, 5... Microcomputer (unlocking determination section), 6... RF circuit (communication section, alarm section), 7... Antenna (communication section, alarm section), 8... LED (alarm section)

Claims

1. a rotation sensor that detects the rotation angle of the locking / unlocking device and outputs a detection signal indicating the rotation angle; an unlocking determination unit that updates the locking position of the locking / unlocking device through a calibration process, determines whether the locking / unlocking device is locked or unlocked based on the locking position obtained through the calibration process and the rotation angle obtained from the detection signal, and generates a notification signal indicating the result of the determination; a notification unit that notifies an outside party of the unlocking of the locking / unlocking device based on the notification signal; a communication unit that communicates with a communication terminal, The unlocking determination unit is a security sensor that starts the calibration process when the communication unit receives a calibration start instruction from the communication terminal.

2. A security sensor as described in Claim 1, wherein the unlocking determination unit updates the locking position when the communication unit receives an instruction to update the locking position from the communication terminal.

3. A rotation sensor that detects the rotation angle of a locking / unlocking device and outputs a detection signal indicating the rotation angle; an unlocking determination unit that updates the locking position of the locking / unlocking device through a calibration process, determines whether the locking / unlocking device is locked or unlocked based on the locking position obtained through the calibration process and the rotation angle obtained from the detection signal, and generates an alarm signal indicating the result of the determination; a notification unit that notifies an outside party of the unlocking of the locking / unlocking device based on the notification signal; The unlocking determination unit generates a calibration notification signal indicating that the calibration process is being performed, The notification unit is a security sensor that notifies that the calibration process is being performed based on the calibration notification signal.

4. A security sensor described in any one of claims 1 to 3, wherein the rotational sensor is an acceleration sensor that detects gravitational acceleration in three orthogonal axes.

5. A locking / unlocking device incorporating a security sensor described in any one of claims 1 to 4.

6. A locking / unlocking device according to claim 5, which has a communication function; A locking / unlocking security system comprising a communication terminal that communicates with the locking / unlocking device.

7. Building materials equipped with the locking / unlocking device described in claim 5.

8. A locking / unlocking security system comprising the locking / unlocking device described in claim 5 or the building fixture described in claim 7, and a communication terminal that communicates with the locking / unlocking device.

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