Security sensors and locking / unlocking devices

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 locking / unlocking device includes: a lock designation unit that alternatively designates the unlocking direction and the unlocking angle concerning a specific locking / unlocking device out of the unlocking direction and the unlocking angle for multiple types of locking / unlocking devices; 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 determines the unlock of the locking / unlocking device by comparing the unlocking direction specified by the lock designation unit and the rotation angle input from the rotation sensor and generates a notification signal representing a judgment result; and a notification unit that notifies the unlock 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 and a locking / unlocking device. [Background technology]

[0002] BACKGROUND ART Various locking / unlocking devices are known for locking and unlocking fixtures provided at openings in buildings, such as crescent locks and cam latches (see, for example, Patent Document 1). [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] Locking / unlocking devices have different rotation directions and rotation angles depending on the type. When incorporating a security sensor into a locking / unlocking device, it is necessary to prepare security sensors with different specifications for each type.

[0005] The present disclosure has been made in consideration of the above-mentioned circumstances, and aims to provide a security sensor that is compatible with multiple types of locking / unlocking devices, and to provide a locking / unlocking device equipped with a security sensor. [Means for solving the problem]

[0006] One aspect of the present disclosure is a security sensor that includes a lock designation unit that selectively designates the unlocking direction and unlocking angle for a specific locking / unlocking device from among the unlocking directions and unlocking angles for multiple types of locking / unlocking devices; 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 determines the unlocking of the locking / unlocking device by comparing the unlocking direction and unlocking angle designated by the lock designation unit with the rotation angle input from the rotation sensor and generates an alarm signal indicating the result of the determination; and an alarm unit that notifies the outside world of the unlocking of the locking / unlocking device based on the alarm signal. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 2 is a block diagram showing the functional configuration of a locking / unlocking device A and a security sensor B. [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 operation of security sensor B. [Figure 5A] 1 is a first schematic diagram showing the operation of the locking / unlocking device A. FIG. [Figure 5B] 2 is a second schematic diagram showing the operation of the locking / unlocking device A. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0008] The locking / unlocking device A according to this embodiment is a mechanical security device that is attached to entrances, windows, etc. of a building to prevent intrusion of suspicious persons into the building, and has a built-in security sensor B as shown in Fig. 1. Types of the locking / unlocking device A include the Smart Crescent X, Smart Thumbturn Y, and Smart Cremon Z, as shown in Figs. 2A to 2C. However, the types of the locking / unlocking device A are not limited to these and include various types such as a smart cam latch.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] The security sensor B includes an alkaline battery B1 and a sensor board B2 as shown in Figure 1. The sensor board B2 includes a connector 1, a DC / DC converter 2, a three-axis acceleration sensor 3, a DIP_SW 4, a microcomputer 5, an RF circuit 6, an antenna 7, and an LED 8 as shown in the figure.

[0014] Security sensor B is also called a crime prevention sensor, and is attached to the entrances and windows of the building to detect any attempts to intrude into the building. Security sensor B is built into locking / unlocking device A that is installed at the entrances and windows of the building, and when it detects any attempts to intrude into the building, it reports the detection of the intrusion to the outside.

[0015] 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. Although the alkaline battery B1 is used as the power source for the security sensor B, the power source for the security sensor B is not limited to the alkaline battery B1.

[0016] 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.

[0017] 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 outside using radio waves.

[0018] 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.

[0019] 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.

[0020] The triaxial acceleration sensor 3 detects the gravitational acceleration acting on the operating part of the locking / unlocking device A. The triaxial acceleration sensor 3 is an acceleration sensor sensitive to 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 triaxial 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 as the detection results.

[0021] 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 A. When the locking / unlocking device A 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.

[0022] 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 3-axis acceleration sensor 3 is a rotation sensor that detects the rotation angle θ of the locking / unlocking device A 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.

[0023] 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.

[0024] 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."

[0025] 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 A, as shown in Figure 3. When the first to third bits are all set to "0," it 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," it corresponds to a smart cam latch (left) with an unlocking direction to the left and an unlocking angle of 15°.

[0026] 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°.

[0027] The state where the first and third bits are set to "1" and the second bit is set 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 corresponding locking / unlocking device A has not been set.

[0028] 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 A 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 A that incorporates a security sensor B.

[0029] 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 A 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 A that incorporates a security sensor B.

[0030] The Smart Crescent (Right) is a crescent lock that locks by rotating the operating unit 8 degrees to the right (right), and is a type of locking / unlocking device A 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 type of locking / unlocking device A 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 type of locking / unlocking device A that incorporates a security sensor B.

[0031] DIP_SW4 is a lock designation unit that selectively designates the unlocking direction and unlocking angle for a specific locking / unlocking device A into which security sensor B is incorporated, among the unlocking directions and unlocking angles for multiple types of locking / unlocking devices A, and is set appropriately by an operator when assembling security sensor B inside locking / unlocking device A. When assembling security sensor B to smart crescent (left), an operator sets DIP_SW4 to the binary number "000."

[0032] 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."

[0033] 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."

[0034] 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."

[0035] The microcomputer 5 is an unlocking determination unit that determines whether the locking / unlocking device A is locked or unlocked based on the X-axis acceleration detection value, Y-axis acceleration detection value, and Z-axis acceleration detection value input from the 3-axis acceleration sensor 3 and the setting value of DIP_SW4.

[0036] 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 A. 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 A.

[0037] 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 A, 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.

[0038] The microcomputer 5 acquires the rotation angle θ of the operating unit based on the detected X-axis, Y-axis, and Z-axis acceleration values input from the triaxial acceleration sensor 3. The microcomputer 5 determines whether the locking / unlocking device A is locked or unlocked based on the unlocking determination threshold and the rotation angle θ of the operating unit, and generates first and second alarm signals indicating the determination result. The microcomputer outputs the first alarm signal to the RF circuit 6 and the second alarm signal to the LED 8.

[0039] The RF circuit 6 performs a predetermined modulation process on the first notification 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), which is a well-known short-range wireless communication standard.

[0040] 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).

[0041] 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 outside world of the unlocking of the locking / unlocking device A using radio waves (transmission waves) based on the first notification signal.

[0042] The LED 8 is a light emitting diode that notifies the outside that the locking / unlocking device A has been locked or unlocked based on a second notification signal input from the microcomputer 5. The LED 8 visually notifies the outside that the locking / unlocking device A has been locked or unlocked, and for example, flashes when the locking / unlocking device A has been unlocked. The LED 8 is a second notification unit that notifies the outside that the locking / unlocking device A has been unlocked by emitting light based on the second notification signal.

[0043] The operations of the security sensor B and the locking / unlocking device A according to this embodiment will be described with reference to FIGS. 4, 5A and 5B.

[0044] First, the DIP_SW4 of the security sensor B is preset to a setting value according to the type of locking / unlocking device A to be actually installed. For example, when installing the security sensor B in the smart crescent X, the worker sets the DIP_SW4 to "000."

[0045] The microcomputer 5 determines whether the locking / unlocking device A is locked or unlocked based on the setting value of the DIP_SW4 and notifies the outside 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 S1).

[0046] 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 them as the unlocking determination threshold value (step S2). The processes of steps S1 and S2 are initial settings in the microcomputer 5.

[0047] After the initial setting is completed, the microcomputer 5 acquires the rotation angle θ at predetermined time intervals (step S3). 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.

[0048] 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 S4). The microcomputer 5 determines that the locking / unlocking device A 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.

[0049] For example, in the case of the Smart Crescent (Left), the locking direction is to the left, and by rotating the operation unit 8° to the right as shown in Fig. 5A, the locked state is released and the Smart Crescent (Left) is unlocked. 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.

[0050] In the case of the smart thumb turn (left), the locking direction is also to the left, and as shown in Figure 5B, the locked state is released and the door is unlocked by rotating the operating unit 15° to the right. The microcomputer 5 reads the unlocking direction and unlocking angle of the smart thumb turn (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 thumb turn (left) is unlocked.

[0051] 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 A is not unlocked.

[0052] 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 S4 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 S4 is "No."

[0053] When the result of the unlocking determination in step S4 is "Yes," the microcomputer 5 generates a first alarm signal and outputs it to the RF circuit 6 (step S5). The RF circuit 6 generates a transmission signal based on the first alarm signal and supplies power to the antenna 7 (step S6). The antenna 7 emits a transmission wave (radio wave) based on the transmission signal to the external terminal (step S7).

[0054] Although not shown in Fig. 4, 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 A is unlocked.

[0055] When the unlocking of the locking / unlocking device A is notified to the outside, the microcomputer 5 subsequently repeats the process of step S3. The process of step S3 is also repeated if the unlocking determination in step S4 is "No." The series of processes from steps S3 to S7 is a regular process of the microcomputer 5, and is repeated at predetermined time intervals.

[0056] According to this embodiment, it is possible to provide a security sensor B that is compatible with multiple types of locking / unlocking devices A. According to this embodiment, it is possible to provide a locking / unlocking device A that includes a security sensor 1 that is compatible with multiple types of locking / unlocking devices A.

[0057] The present disclosure is not limited to the above-described embodiment, and various modifications are possible.

[0058] (1) The lock designation unit of the present disclosure is not limited to a DIP_SW4 having multiple slide switches. For example, a rotary switch or other multiple switches may be used as the lock designation unit. Various circuit components can be used as a circuit method for selectively designating the unlocking direction and unlocking angle for a specific locking / unlocking device A from among the unlocking directions and unlocking angles for multiple types of locking / unlocking devices A.

[0059] (2) 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 A as a physical quantity other than triaxial acceleration may be used as the rotation sensor.

[0060] (3) The unlocking determination unit of the present disclosure is not limited to the microcomputer 5 that determines the unlocking of the locking / unlocking device A by software. For example, an electronic circuit that determines the unlocking of the locking / unlocking device A by hardware resources alone may be used as the unlocking determination unit.

[0061] (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 outside that the locking / unlocking device A has been unlocked. The notification unit may also be one that uses a communication medium other than radio waves, such as light or sound waves, to notify the outside that the locking / unlocking device A has been unlocked.

[0062] (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 A 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]

[0063] A... Locking / unlocking device, B... Security sensor, B1... Alkaline battery, B2... Sensor board, 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 (lock designation section), 5... Microcomputer (unlock determination section), 6... RF circuit (alarm section), 7... Antenna (alarm section), 8... LED (alarm section)

Claims

1. a lock designation unit that selectively designates an unlocking direction and an unlocking angle for a specific locking / unlocking device from among the unlocking directions and unlocking angles for a plurality of types of locking / unlocking devices; a rotation sensor that detects a rotation angle of the locking / unlocking device and outputs a detection signal indicating the rotation angle; an unlocking determination unit that determines whether the locking / unlocking device is unlocked by comparing the unlocking direction and the unlocking angle specified by the lock specification unit with the rotation angle input from the rotation sensor, 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; A security sensor comprising:

2. 2. The security sensor according to claim 1, wherein the lock designation unit is a dip switch.

3. 3. The security sensor according to claim 1, wherein the unlocking determination unit is a microcomputer.

4. The unlocking determination unit generates a first notification signal, A security sensor as described in any one of claims 1 to 3, wherein the alarm unit comprises an RF circuit that modulates the first alarm signal to generate a transmission signal, and an antenna that radiates the transmission signal into the air as radio waves.

5. The unlocking determination unit generates a second notification signal, 5. The security sensor according to claim 1, wherein the alarm unit is an LED (Light Emitting Diode) that emits light based on the second alarm signal.

6. A locking / unlocking device incorporating the security sensor according to any one of claims 1 to 5.

Images