Actuator module, lock system, door, and calibration method

Abstract

An actuator module (21) for a lock system (100) attached to a building door (1000) comprises: a drive unit (215); a power transmission unit (216) that transmits power output from the drive unit and outputs the power as power for unlocking and locking a lock (1000B, BM), the power transmission unit (216) having a lock interlocking unit (SS, G4, TL) that moves to an unlocking position in order to bring the lock into an unlocked state and moves to a locking position in order to bring the lock into a locked state; an ammeter (AM) that measures a drive current of the drive unit; a position sensor (PM) that detects the position of the lock interlocking unit; a storage unit (219); and a controller (213). The controller records, in the storage unit, an output of the position sensor when a measurement value of the ammeter has become equal to or greater than a threshold value as first information indicating the unlocking position or the locking position.

Description

Actuator module, lock system, door, and calibration method

[0001] The present disclosure relates to an actuator module, a lock system, a door, and a calibration method.

[0002] A locking system is used to automatically lock and unlock a door. The locking system includes, for example, a lock unit and a control unit. The lock unit has a motor that generates power for locking and unlocking the door, and a power transmission unit that transmits the power generated by the motor to the door.

[0003] In the above lock system, when the control unit drives the motor of the lock unit, the motor's power is transmitted to the door via the power transmission unit, moving the door's deadbolt. This locks or unlocks the door. The lock system unlocks the lock by setting the power transmission unit to the unlock position, and unlocks the lock by setting the power transmission unit to the lock position.

[0004] The patent document 1 describes a smart lock including a processor configured to monitor a current signal, determine a position of a first mechanical endstop for the locking mechanism based on the current signal, and define a first operating endstop for the locking mechanism.

[0005] Japanese Patent Application Laid-Open No. 2023-534541

[0006] In a lock system, it is desirable to accurately calibrate the unlocked and locked positions. In this respect, the smart lock of Patent Document 1 cannot be said to be sufficient.

[0007] The present disclosure aims to provide an actuator module, a lock system, a door, and a calibration method that allow accurate calibration of the unlocked and locked positions.

[0008] According to a first aspect of the present disclosure, there is provided an actuator module for a locking system to be attached to a door of a building, comprising: a drive unit; a power transmission unit that transmits power output from the drive unit and outputs it as power for unlocking and locking the lock, the power transmission unit having a lock interlocking unit that moves to an unlock position to set the lock in an unlocked state and moves to a lock position to set the lock in a locked state; an ammeter that measures the drive current of the drive unit; a position sensor that detects the position of the lock interlocking unit; a memory unit; and a controller, wherein the controller records the output of the position sensor in the memory unit when the measured value of the ammeter becomes equal to or greater than a threshold value as first information indicating the unlocked position or the locked position.

[0009] According to a second aspect of the present disclosure, there is provided a locking system for a door of a building, comprising the actuator module of the first aspect.

[0010] According to a third aspect of the present disclosure, there is provided a door for a building, comprising: a door body; a deadbolt provided in the door body; and the lock system of the third aspect that moves the deadbolt.

[0011] According to a fourth aspect of the present disclosure, there is provided a calibration method for an actuator module for a lock system to be attached to a door of a building, the actuator module comprising: a drive unit; a power transmission unit that transmits power output from the drive unit and outputs it as power for unlocking and locking the lock, the power transmission unit having a lock interlocking unit that moves to an unlock position to set the lock in an unlocked state and moves to a lock position to set the lock in a locked state; an ammeter that measures the drive current of the drive unit; a position sensor that detects the position of the lock interlocking unit; and a memory unit, and the method includes recording in the memory unit the output of the position sensor when the measured value of the ammeter becomes equal to or greater than a threshold value as first information indicating the unlocked position or the locked position.

[0012] The present disclosure provides an actuator module, lock system, door, and calibration method that allows accurate calibration of the unlocked and locked positions.

[0013] FIG. 1 is a side view showing a lock system according to one embodiment attached to a door. FIG. 2(a) is an exploded perspective view showing an example of an outdoor unit. FIG. 2(b) is an exploded perspective view showing an example of an indoor unit. FIG. 3 is a plan view showing an example of a lock unit. FIG. 4(a) is a side view showing an example of an actuator module. FIG. 4(b) is a front view showing an example of an actuator module. FIG. 4(c) is a rear view showing an example of an actuator module. FIG. 5 is a block diagram showing an example of the configuration of a lock system. FIG. 6(a) is a plan view showing an example of a circuit board. FIG. 6(b) is a perspective view showing an example of the arrangement of a motor, a portion of a power transmission unit, and a circuit board. FIG. 7(a) is a plan perspective view showing an example of the arrangement of a circuit board, a motor, a power transmission unit, and a group of sensors in an actuator module. FIG. 7(b) is a perspective view showing an example of the arrangement of a circuit board, a motor, a power transmission unit, and a group of sensors in an actuator module. FIG. 8(a) is a plan view of an example of a third driven gear as seen from the front. FIG. 8(b) is a plan view of the third driven gear of FIG. 8(a) combined with a torque limiter. FIG. 9(a) is a plan view of an example of an output gear as viewed from the front. FIG. 9(b) is a plan view of an example of a combination of an output gear and a torque limiter as viewed from the rear. FIG. 10 is an explanatory diagram showing the positional relationship in the front-to-rear direction between the front and rear plates of the housing, the circuit board, and the power transmission unit. FIG. 11(a) is a perspective view of an example of a shaft member. FIG. 11(b) is a cross-sectional view showing an example of a state in which the shaft member is attached to the output gear. FIG. 12 is an explanatory diagram showing the schematic configuration of an example of a circuit board of a communication module. FIG. 13(a) is an explanatory diagram for explaining the locking operation by the actuator module. FIG. 13(b) is an explanatory diagram for explaining the unlocking operation by the actuator module. FIG. 14 is a graph showing the decrease in battery output voltage over time. FIG. 15 is a flowchart showing an example of the procedure for battery life extension processing executed by the controller of the actuator module. FIG. 16 is a wiring diagram showing an example of an electrical path between the battery and the motor in a lock system. FIG. 17 is a graph showing the change in the output voltage of the battery over time.Fig. 18 is a flowchart showing an example of the procedure for a battery remaining capacity monitoring process executed by the controller of the actuator module. Fig. 19 is a flowchart showing an example of the procedure for a failure determination process executed by the controller of the actuator module. Fig. 20 is a flowchart showing an example of the procedure for a failure determination process executed by the controller of the actuator module. Fig. 21 is a flowchart showing an example of the procedure for a calibration process for the unlocked position and the locked position executed by the controller of the actuator module. Fig. 22(a) is an explanatory diagram showing an example of the locking position when the lock system is installed on a right-swinging door. Fig. 22(b) is an explanatory diagram showing an example of the unlocking position when the lock system is installed on a right-swinging door. Fig. 23 is an explanatory diagram for explaining the arrangement of antennas in the lock system.

[0014] <Embodiment> A lock system 100 (Fig. 1) according to one embodiment of the present disclosure will be described with reference to Figs. 1 to 23, taking as an example a case where the lock system 100 is attached to a door 1000 (Fig. 1) for use.

[0015] [Structure of Door 1000] The following describes the door 1000 that is locked and unlocked by the lock system 100. As shown in Figures 2(a) and 2(b), the door 1000 mainly includes a plate-shaped door body 1000M, a deadbolt 1000B provided on the side of the door body 1000M, and a deadbolt movement mechanism BM for moving the deadbolt 1000B.

[0016] Door body 1000M interior surface S ＩＮ (Fig. 2(b)) Opening OP １０００ An opening OP is provided. １０００ A deadbolt movement mechanism BM is disposed inside the door body 1000M. The deadbolt movement mechanism BM is a mechanism that moves the deadbolt 1000B between a protruding state (the state shown in FIGS. 2(a) and 2(b)) in which the tip of the deadbolt 1000B protrudes from the side of the door body 1000M, and a retracted state in which the tip of the deadbolt 1000B is flush with the side of the door body 1000M. The deadbolt 1000B and the deadbolt movement mechanism BM are an example of a "lock" of the present disclosure.

[0017] When the deadbolt 1000B is in the extended position, the door 1000 is in a locked state. When the deadbolt 1000B is in the retracted position, the door 1000 is in an unlocked state.

[0018] The door body 1000M has an interior surface S of the door body 1000M. ＩＮ and exterior surface S ＯＵＴ A through hole th extending between １０００ is provided.

[0019] [Structure of Lock System 100] As shown in FIG. 1, the lock system 100 is ＩＮ Indoor unit 100 attached to ＩＮ and the exterior surface S of the door body 1000M ＯＵＴ The outdoor unit 100 is attached to ＯＵＴ Indoor unit 100 ＩＮ and the outdoor unit 100 ＯＵＴ The deadbolt 1000B and the deadbolt movement mechanism BM cooperate to function as a locking mechanism for the door 1000.

[0020] As shown in FIG. 2(b), the indoor unit 100 ＩＮ The outdoor unit 100 mainly comprises a base 10, a lock unit 20, and a cover 30. As shown in FIG. ＯＵＴ The device mainly comprises a base 40 , a main circuit board 50 , and a cover 60 .

[0021] In the following description, for the sake of convenience, the front-rear direction, left-right direction, and up-down direction of the lock system 100 are as shown in Figures 1, 2(a), and 2(b). ＯＵＴ and indoor unit 100 ＩＮ and are the directions that sandwich the door body 1000M, and the indoor unit 100 ＩＮ The side where the outdoor unit 100 is located is the front. ＯＵＴ The side where the lock system 100 is located is defined as the rear. The left-right and up-down directions correspond to the width and height directions of the door body 1000M when the lock system 100 is attached to the door body 1000M. The right and left as viewed from the front are defined as the right and left in the left-right direction. The front-rear direction, left-right direction, and up-down direction are perpendicular to each other.

[0022] [Base 10] The base 10 is a base for the indoor unit 100. ＩＮ The base 10 can be made of any material such as metal or resin. The base 10 is a substantially rectangular flat plate with its long sides extending vertically and its short sides extending horizontally. An opening OP extends through the base 10 in the front-rear direction above the center of the base 10. １０ An opening op is provided below the center of the base 10, penetrating the base 10 in the front-rear direction. １０ is provided.

[0023] The base 10 is attached to the interior surface S of the door body 1000M by means of fasteners such as screws (not shown). ＩＮ When the base 10 is fixed to the door body 1000M, the opening OP is １０ Opening OP １０００ overlapping, opening op １０ is the through hole １０００ overlaps with.

[0024] [Lock Unit 20] The lock unit 20 is a drive unit of the lock system 100. That is, the lock unit 20 is a mechanism that moves the deadbolt 1000B of the door 1000 between the extended position and the retracted position by driving itself.

[0025] 3, the lock unit 20 includes an actuator module 21 and a communication module 22. The actuator module 21 and the communication module 22 are connected by a wire W3.

[0026] As shown in Figures 3, 4(a) to 4(c), and 5, the actuator module 21 includes a housing 211, a circuit board 212 housed inside the housing 211, a controller 213, a motor driver 214, a motor 215, a power transmission unit 216, a group of sensors 217, a DC / DC converter 218, and a memory unit 219.

[0027] The housing 211 is box-shaped. The housing 211 may be made of any material, such as metal or resin. As shown in Fig. 4(a) , the housing 211 has a front portion 211a and a rear portion 211b. By fitting the front portion 211a and the rear portion 211b together in the front-to-rear direction, an internal space for arranging a circuit board 212 and the like is defined.

[0028] The front portion 211a has a front plate 211Sa and a peripheral wall Wa that stands upright rearward from the outer periphery of the front plate 211Sa. An opening OP penetrates the front plate 211Sa in the front-rear direction at the upper center of the front plate 211Sa. ２１１Ｓａ An opening OP is formed. ２１１Ｓａ An output gear G4 (described later) of the power transmission unit 216 is disposed inside the front plate 211Sa. The front plate 211Sa is plate-shaped and extends in a plane perpendicular to the front-rear direction.

[0029] The rear portion 211b has a rear plate 211Sb and a peripheral wall Wb that stands upright forward from the outer periphery of the rear plate 211Sb. An opening OP is formed at the upper center of the rear plate 211Sb, penetrating the rear plate 211Sb in the front-rear direction. ２１１Ｓｂ An opening OP is formed. ２１１Ｓｂ An output shaft S2 (described later) of the power transmission unit 216 is disposed inside the shaft S2.

[0030] The circuit board 212 is a printed circuit board (PCB) on which the controller 213 and the like are mounted. As shown in Figures 6(a) and 6(b), the circuit board 212 has a main area 212A and a sub-area 212B (an example of an "output shaft-enclosed area") located above the main area 212A. In Figure 6(a), the area enclosed by a dashed dotted line is the sub-area 212B, and the other areas are the main area 212A.

[0031] The shape of the main area 212A is arbitrary. In this embodiment, the main area 212A is provided with a controller 213, a motor driver 214, a potentiometer PM (described later) of a sensor group 217, first and second voltmeters VM1 and VM2 (described later), and an ammeter AM (described later), a DC / DC converter 218, and a storage unit 219.

[0032] The sub-region 212B is an open annular shape with a portion of the annular ring being open when viewed in the front-rear direction. Ｓ２ and the rotation axis X Ｓ２ Opening OP in part of the circumferential direction ２１２Ｂ In this embodiment, magnetic sensors MS1 to MS4 (described later) of the sensor group 217 are provided in the sub-region 212B.

[0033] In this embodiment, the circuit board 212 including the primary region 212A and the secondary region 212B has an overall J-shape. In this disclosure, the term "J-shape" refers to a shape having a first portion extending in a first direction, a second portion extending in the first direction but shorter than the first portion, and a third portion extending in a second direction perpendicular to the first direction and connecting one end of the first portion to one end of the second portion, with the other end of the first portion and the other end of the second portion located on the same side of the third portion in the first direction. As an example, each of the first portion, the second portion, and the third portion may be rectangular.

[0034] The controller 213 (an example of a "second controller") controls the motor 215 via a motor driver 214, controls the sensor group 217, and communicates with the controller 51 on the main circuit board 50. The controller 213 also performs processes such as monitoring the remaining charge of a battery BT (described later) that supplies power to the actuator module 21, extending the life of the battery BT, determining whether there is a fault in the actuator module 21, and automatically calibrating the actuator module 21. The controller 213 is mounted in a main area 212A of the circuit board 212. In this embodiment, the controller 213 is an MCU (microcontroller, microcomputer).

[0035] The controller 213 is connected to a communication port P ２１３－５１ (an example of a "communication interface"), communication port P ２１３－２２２ (another example of a "communication interface"). The controller 213 has a communication port P ２１３－５１ The controller 213 is communicably connected to a controller 51 (described later) of the main circuit board 50 via a wiring W1 connected to the communication port P ２１３－２２２The communication port P is communicably connected to a controller 222 (described later) of the communication module 22 via a wiring W3 connected to the communication port P. ２１３－５１ The number of ports required is the communication port P ２１３－２２２ The number of ports required varies depending on the communication method.

[0036] The communication method between the controller 213 and the controller 51 and the communication method between the controller 213 and the controller 222 are each arbitrary, but as an example, a UART (Universal Asynchronous Receiver / Transmitter) method may be used. ２１３－５１ The number of ports required is the communication port P ２１３－２２２ In this case, two communication lines are sufficient for each of the wiring W1 and the wiring W3.

[0037] The operation of the controller 213 will be described in detail later.

[0038] The motor driver 214 controls the driving of the motor 215 based on instructions from the controller 213. The motor driver 214 is mounted on the main region 212A of the circuit board 212.

[0039] The motor driver 214 is connected to the controller 213 by wiring (not shown) formed on the circuit board 212. The operation of the motor driver 214 will be described later.

[0040] In this embodiment, the motor 215 is a DC motor. The motor 215 is disposed inside the housing 211 at the lower center of the left and right sides, as shown in Fig. 7, for example. The motor 215 is connected to the motor driver 214 by wiring (not shown). The motor 215 has an output shaft 215S.

[0041] The power transmission unit 216 is a mechanism that transmits the power of the motor 215 to the deadbolt moving mechanism BM of the door 1000. As shown in Figures 7(a) and 7(b), the power transmission unit 216 has a worm gear G0, a first driven gear G1, a second driven gear G2, a third driven gear G3, an output gear G4, and a shaft member SS.

[0042] The worm gear G0 is attached to the output shaft 215S of the motor 215.

[0043] The first driven gear G1 is a two-stage gear having a large diameter gear G11 and a small diameter gear G12, and is connected to the shaft SF Ｇ１ The first driven gear G1 can rotate around the rotation axis X Ｇ１ (Shaft SF Ｇ１ The shaft SF extends in the front-to-rear direction. Ｇ１ is supported by the housing 211. The large diameter gear G11 is in mesh with the worm gear G0.

[0044] The second driven gear G2 is a two-stage gear having a large diameter gear G21 and a small diameter gear G22, and is connected to the shaft SF Ｇ２ The second driven gear G2 can rotate around the rotation axis X Ｇ２ (Shaft SF Ｇ２ The shaft SF extends in the front-to-rear direction. Ｇ２ is supported by the housing 211. The large diameter gear G21 meshes with the small diameter gear G12 of the first driven gear G1.

[0045] The third driven gear G3 is engaged with the small diameter gear G22 of the second driven gear G2. As shown in FIG. 8(a), the third driven gear G3 is a disk-shaped main body MB Ｇ３ and the main body MB Ｇ３ Teeth portion TE provided on the outer peripheral surface of Ｇ３ In FIG. 8(a), the tooth portion TE Ｇ３ The position of the tip circle of the gear is shown by a two-dot chain line.

[0046] Main body MB Ｇ３ is the main body MB Ｇ３ A recess RE having a circular shape in plan view provided at the center of the front surface of Ｇ３ and recess RE Ｇ３ A circular peripheral wall CW surrounding the Ｇ３ and recess RE Ｇ３ A circular through hole TH provided in the center of Ｇ３ The through hole TH Ｇ３ The rotation axis X of the third driven gear G3 is at the center of Ｇ３ is located at the rotation axis X Ｇ３ extends along the front-to-rear direction.

[0047] Main body MB Ｇ３ On the rear side of the Ｇ３ Cylindrical portion CL extending along Ｇ３ The cylindrical portion CL is provided. Ｇ３ The inner diameter of the through hole TH Ｇ３ The diameter is slightly larger than that of the

[0048] Peripheral wall CW Ｇ３ The third driven gear G3 has a first protrusion PT1 and a second protrusion PT2 that protrude radially inward of the third driven gear G3 and are provided at two locations spaced 180° apart in the circumferential direction of the third driven gear G3. The first protrusion PT1 and the second protrusion PT2 have the same shape and are substantially triangular when viewed in the front-to-rear direction.

[0049] As shown in FIG. 11(b), the driven gear G3 is Ｇ３ A cylindrical portion CL extends forward from the rear plate 211Sb of the housing 211 inside the ２１１Ｓｂ By inserting the Ｇ３ It is mounted so as to be rotatable around the center.

[0050] As shown in FIGS. 9(a) and 9(b), the output gear G4 is a disk-shaped main body MB Ｇ４ and the main body MB Ｇ４ Teeth TE provided on the outer periphery of the rear surface Ｇ４ and the main body MB Ｇ４ A protrusion PR protruding rearward from the center of the rear surface of Ｇ４ In FIG. 9(b), the tooth portion TE Ｇ４ The position of the tooth root circle of the tooth portion TE is shown by a two-dot chain line. Ｇ４ The tip circle of the main body MB Ｇ４ It is at the same position as the outer surface of the

[0051] Main body MB Ｇ４ In the center of the front of the Ｇ４ A recess CRE is provided. Ｇ４ In the center of the Ｇ４ The recess HRE is provided. Ｇ４ In the center of Ｇ４As shown in FIG. 11(b), the recessed portion HRE Ｇ４ and through hole TH Ｇ４ is the protrusion PR Ｇ４ The through hole TH is provided in Ｇ４ The rotation axis X of the output gear G4 is at the center of Ｇ４ is located.

[0052] A torque limiter TL (FIG. 9B) is attached to the rear surface of the output gear G4. The torque limiter TL has a tooth portion TE in the radial direction of the output gear G4. Ｇ４ Located inside.

[0053] The torque limiter TL has a first member TL1, a second member TL2, and a pair of coil springs SP. The first member TL1 has a protrusion pt1. The second member TL2 has a protrusion pt2. The pair of springs SP are located between the first member TL1 and the second member TL2 and bias the first member TL1 (and thus the protrusion pt1) and the second member TL2 (and thus the protrusion pt2) radially outward from the output gear G4.

[0054] A part of the outer surface of the first member TL1 and a part of the outer surface of the second member TL2 are in contact with the protrusion PR of the output gear G4. Ｇ４ Therefore, the output gear G4 and the torque limiter TL rotate together.

[0055] The output gear G4 is configured to insert the torque limiter TL into the recess RE of the driven gear G3. Ｇ３ When the driven gear G3 and the output gear G4 are combined, the rotation axis X of the driven gear G3 is Ｇ３ and the rotation axis X of the output gear G4 Ｇ４ are consistent with each other.

[0056] 8B shows the position of the torque limiter TL relative to the driven gear G3 when the driven gear G3 and the output gear G4 are combined. In FIG. 8B, the protrusions PT1 and PT2 of the driven gear G3 are positioned close to the protrusions pt1 and pt2 of the torque limiter TL. However, the positional relationship between the protrusions PT1 and PT2 and the protrusions pt1 and pt2 changes depending on the rotation of the output gear G4 relative to the driven gear G3 (as will be described in detail later).

[0057] 6(b) and 10, the small diameter gear G12 of the driven gear G1 and the large diameter gear G21 of the driven gear G2 are disposed at the same position in the front-to-rear direction as the circuit board 212. By disposing a part of the power transmission unit 216 and the circuit board 212 so that they overlap in the front-to-rear direction (preferably at approximately the same position), the thickness (dimension in the front-to-rear direction) of the actuator module 21 can be reduced.

[0058] As shown in FIG. 4(b) and FIG. 10, the main body MB of the output gear G4 Ｇ４ indicates an opening OP in the front portion 211a of the housing 211. ２１１Ｓａ That is, the main body MB of the output gear G4 is disposed inside the Ｇ４ is disposed at the same position in the front-to-rear direction as the front plate 211Sa of the housing 211. By disposing a part of the power transmission unit 216 and the front plate 211Sa of the housing 211 so that they overlap in the front-to-rear direction (preferably at approximately the same position), the thickness (dimension in the front-to-rear direction) of the actuator module 21 can be reduced.

[0059] 7(b), the shaft member SS is provided at the center between the driven gear G3 and the output gear G4, penetrating the driven gear G3 and the output gear G4 in the front-rear direction. The shaft member SS is detachable from another part of the power transmission part 216, specifically from the output gear G4.

[0060] As shown in FIG. 11( a ), the shaft member SS is oriented along the central axis X ＳＳ The motor has, in order from one end side, an input shaft S1, a flange portion FR, a hexagonal portion HX, and an output shaft S2.

[0061] The input shaft S1 is a shaft to which a thumb turn ST (described later) is attached. The input shaft S1 is a triangular prism with a tapered portion at its tip. The flange portion FR is disc-shaped and connected to the base end of the input shaft S1. The hexagonal portion HX is hexagonal prism-shaped and connected to the surface of the flange portion FR opposite to the surface to which the input shaft S1 is connected.

[0062] The output shaft S2 is a shaft connected to the deadbolt movement mechanism BM of the door 1000. The output shaft S2 is cylindrical and is connected to the end of the hexagonal part HX opposite to the end to which the flange part FR is connected. As shown in FIG. 11(b), the end surface S2E of the output shaft S2 has a central axis X ＳＳ A recess R extending along Ｓ２ is provided.

[0063] In the shaft member SS, the input shaft S1, the flange portion FR, the hexagonal portion HX, and the output shaft S2 are coaxially arranged.

[0064] As shown in FIG. 11B, the shaft member SS has a hexagonal portion HX that is oriented in the recessed portion HRE of the output gear G4. Ｇ４ By fitting into the central axis X ＳＳ When the shaft member SS is attached to the output gear G4, the flange portion FR is aligned with the recessed portion CRE of the output gear G4. Ｇ４ The input shaft S1 extends forward of the output gear G4 and the housing 211. The output shaft S2 is inserted through the through hole TH of the output gear G4. Ｇ４ , through hole TH of driven gear G3 Ｇ３ , an opening OP in the rear plate 211Sb of the housing 211 ２１１Ｓｂ and extends rearward of the housing 211. A retaining ring (not shown) attached to the output shaft S2 behind the rear plate 211Sb restricts the movement of the shaft member SS in the front-rear direction.

[0065] When the shaft member SS is attached to the output gear G4, the central axis X of the shaft member SS ＳＳ is the rotation axis X of the driven gear G3 Ｇ３ and the rotation axis X of the output gear G4 Ｇ４ Also, the rotation axis X of the input shaft S1 is Ｓ１ , rotation axis X of output shaft S2 Ｓ２ is the central axis X of the shaft member SS ＳＳ matches.

[0066] When the output shaft 215S of the motor 215 rotates, the first driven gear G1, the second driven gear G2, the third driven gear G3, and the output gear G4 rotate about their respective rotation axes extending in the front-rear direction. The input shaft S1 and the output shaft S2 rotate integrally with the third driven gear G3 and the output gear G4 about the rotation axis X extending in the front-rear direction. Ｓ１ , X Ｓ２ Rotate around.

[0067] The sensor group 217 includes a potentiometer PM (FIG. 7(b)), a sensor gear SG attached to the rotating shaft of the potentiometer PM, four magnetic sensors MS1 to MS4 (FIGS. 6(a) and 6(b)), a first voltmeter VM1 (FIG. 16), a second voltmeter VM2, and an ammeter AM (FIG. 16).

[0068] The potentiometer PM is mounted on the main area 212A of the circuit board 212. A sensor gear SG attached to a rotation shaft (not shown) of the potentiometer PM meshes with an output gear G4 of the power transmission unit 216. The potentiometer PM is connected to the controller 213 by wiring (not shown) formed on the circuit board 212.

[0069] When the output shaft 215S of the motor 215 rotates, the sensor gear SG rotates via the power transmission unit 216. The potentiometer PM detects the rotation angle (position in the rotation direction) of the output gear G4 and the shaft member SS based on the rotation angle (position in the rotation direction) of the sensor gear SG.

[0070] The magnetic sensors MS1 to MS4 are mounted on a sub-region 212B of the circuit board 212. As shown in FIG. 6A, the magnetic sensors MS1 to MS4 are mounted on a sub-region 212B of the power transmission unit 216. Ｇ３ The magnetic sensors MS1 to MS4 are arranged on a circumference with the center at the center. The magnetic sensors MS1 to MS4 are arranged in the order of magnetic sensor MS1, magnetic sensor MS2, magnetic sensor MS3, and magnetic sensor MS4 in a counterclockwise direction when viewed from the front. The magnetic sensors MS1 to MS4 are arranged on a circumference with the center axis X Ｇ３ The magnetic sensors MS1 to MS4 are spaced apart from one another by approximately 90° in the circumferential direction around the center. Each of the magnetic sensors MS1 to MS4 is connected to the controller 213 by wiring (not shown) formed on the circuit board 212.

[0071] The magnetic sensors MS1 to MS4 detect a magnet (not shown) attached to the driven gear G3 when the magnet approaches the driven gear G3. The controller 213 detects the rotational position of the driven gear G3 based on which of the magnetic sensors MS1 to MS4 detects the magnet.

[0072] The first voltmeter VM1 ( FIG. 16 ) is connected to a measurement point MP1 between the battery BT and the DC / DC converter 218. The second voltmeter VM2 is connected to a measurement point MP2 between the motor driver 214 and the DC / DC converter 218. The ammeter AM is connected to the motor driver 214. The first voltmeter VM1, the second voltmeter VM2, and the ammeter AM are each mounted on the main area 212A of the circuit board 212 and connected to the controller 213.

[0073] The DC / DC converter 218 reduces the voltage of the power supplied from the battery BT (described later) to the motor 215. The DC / DC converter 218 is mounted on the main area 212A of the circuit board 212. The DC / DC converter 218 is connected to the controller 213 by wiring (not shown) formed on the circuit board 212.

[0074] The storage unit 219 is provided on the circuit board 212. The storage unit 219 may be any storage device.

[0075] As shown in FIG. 5, the communication module 22 includes a circuit board 221 , a controller 222 mounted on the circuit board 221 , a wireless communication interface 223 , an antenna group 224 , and a DC / DC converter 225 .

[0076] The circuit board 221 is a printed circuit board (PCB) on which the controller 222 and the like are mounted.

[0077] 12, the circuit board 221 is rectangular. Antenna attachment portions AA1 to AA4 are provided near the four corners of the circuit board 221, respectively.

[0078] The controller 222 (an example of a "third controller") controls the antenna group 224 and communicates with the controller 51 on the main circuit board 50. The controller 222 is mounted on the circuit board 221. In this embodiment, the controller 222 is an MCU (microcontroller). The controller 222 is connected to the wireless communication interface 223, each of the antenna attachment portions AA1 to AA4, and the DC / DC converter 225 by wiring (not shown) formed on the circuit board 221.

[0079] The controller 222 is connected to a communication port P ２２２－５１ (an example of a "communication interface" and an example of a "sub-communication interface"), communication port P ２２２－２１３ The controller 222 has a communication port P ２２２－５１ The controller 222 is communicably connected to a controller 51 (described later) of the main circuit board 50 via a wiring W2 connected to the communication port P ２２２－２１３ The communication port P is connected to the controller 213 of the actuator module 21 via a wiring W3 connected to the ２２２－５１ The number of ports required is the communication port P ２２２－２１３ The number of ports required varies depending on the communication method.

[0080] The communication method between the controller 222 and the controller 51 and the communication method between the controller 222 and the controller 213 are both arbitrary, but may be the UART method as an example. ２２２－５１ The number of ports required is the communication port P ２２２－２１３ In this case, two communication lines are sufficient for each of the wiring W2 and the wiring W3.

[0081] The operation of the controller 222 will be described in detail below.

[0082] The wireless communication interface 223 is an interface for wireless communication with a user terminal (e.g., a smartphone) for issuing instructions to lock or unlock the lock system 100. The wireless communication interface 223 may be, for example, an interface for communication according to standards such as Wi-Fi 6, BLE, or Thread Soc.

[0083] As shown in FIG. 12, the antenna group 224 includes a first antenna AN1 attached to antenna mounting portion AA1 of the circuit board 221, a second antenna AN2 attached to antenna mounting portion AA2 of the circuit board 221, a third antenna AN3 attached to antenna mounting portion AA3 of the circuit board 221, and a fourth antenna AN4 attached to antenna mounting portion AA4 of the circuit board 221.

[0084] Each of the first to fourth antennas AN1 to AN4 is configured to be capable of performing wireless communication at 2.4 GHz and 5 GHz. However, the frequency of the wireless communication of each of the first to fourth antennas AN1 to AN4 is not limited to this. Furthermore, the communication method of each of the first to fourth antennas AN1 to AN4 is not particularly limited.

[0085] The DC / DC converter 225 reduces the voltage of the power supplied from the battery BT (described later) to the communication module 22. The DC / DC converter 225 is mounted on the circuit board 221. The DC / DC converter 225 is connected to the controller 222 by wiring (not shown) formed on the circuit board 221.

[0086] As shown in FIG. 2B, the actuator module 21 of the lock unit 20 is fixed to the base 10 by a fastener (not shown) such as a screw. When the actuator module 21 is fixed to the base 10, the output shaft S2 is inserted through the opening OP １０ Opening through １０００ The opening OP extends to the inside of the １０００ The deadbolt moving mechanism BM of the door 1000 is inserted into the recess R of the output shaft S2. Ｓ２ It is fitted to.

[0087] The communication module 22 of the lock unit 20 can be placed at any position inside the lock system 100 so that the antenna group 224 is positioned suitable for communication. ＩＮ The actuator module 21 may be disposed inside the outdoor unit 100. ＯＵＴ The base 40 can be fixed to the main circuit board 50 and disposed near the main circuit board 50.

[0088] In the following description of this embodiment, the communication module 22 is ＯＵＴ It is assumed that the power supply 10 is fixed to the base 40 and disposed in the vicinity of the main circuit board 50.

[0089] [Cover 30] The cover 30 (FIG. 2(b)) accommodates the lock unit 20 inside and is ＩＮ The cover 30 is a part that constitutes the external appearance of the device. The cover 30 may be made of any material such as metal or resin.

[0090] The cover 30 has a plate portion 31 and a peripheral wall 32 that rises rearward from the outer periphery of the plate portion 31. An opening OP penetrates the plate portion 31 in the front-rear direction at the upper center of the plate portion 31. ３０ is formed.

[0091] The cover 30 is fixed to the base 10 by a fastener such as a screw (not shown). When the cover 30 is fixed to the base 10, the input shaft S1 is inserted through the opening OP ３０ The input shaft S1 extends forward of the plate portion 31. A thumb turn ST (FIG. 1) is attached to the tip of the input shaft S1.

[0092] [Base 40] The base 40 (FIG. 2(a)) is a base for the outdoor unit 100. ＯＵＴ The base 40 can be made of any material such as metal or resin. The base 40 is a substantially rectangular flat plate with its long sides extending up and down and its short sides extending left and right. An opening op is formed below the center of the base 40, penetrating the base 40 in the front-rear direction. ４０ is formed.

[0093] Opening ４０A battery case 41 is provided below the indoor unit 100. A battery BT (FIG. 16) housed in the battery case 41 supplies the power required to drive the lock unit 20. The battery case 41 may be positioned arbitrarily. ＩＮ A battery case 41 may be provided on the base 10 of the actuator module 21. The actuator module 21 may also be supplied with power from a power source other than a battery. For example, power may be supplied from a power source in the home via the main circuit board 50. Alternatively, the actuator module 21 may be powered wirelessly.

[0094] The base 40 is fixed to the exterior surface S of the door body 1000M by means of fasteners such as screws (not shown). ＯＵＴ When the base 40 is fixed to the door body 1000M, the opening op ４０ is the through hole １０００ overlaps with.

[0095] [Main Circuit Board 50] The main circuit board 50 (FIG. 2A) is a printed circuit board (PCB). A controller 51 (FIG. 5) is mounted on the main circuit board 50.

[0096] The controller 51 (an example of a "first controller") processes input from a numeric keypad unit 63 (described later), communicates with the controller 213 of the actuator module 21, and communicates with the controller 222 of the communication module 22. In this embodiment, the controller 51 is an MCU (microcontroller). The controller 51 is connected to a power supply (not shown) by wiring (not shown) formed on the main circuit board 50.

[0097] The controller 51 is connected to a communication port P ５１－２１３ , communication port P ５１－２２２ The controller 51 has a communication port P ５１－２１３ The controller 51 is communicably connected to the controller 213 of the actuator module 21 via a wiring W1 connected to the communication port P ５１－２２２ The communication port P is connected to the controller 222 of the communication module 22 via a wiring W2 connected to the communication port P. ５１－２１３The number of ports required is the communication port P ５１－２２２ The number of ports required varies depending on the communication method.

[0098] The communication method between the controller 51 and the controller 213 and the communication method between the controller 51 and the controller 222 are both arbitrary, but may be the UART method as an example. ５１－２１３ The number of ports required is the communication port P ５１－２２２ In this case, two communication lines are sufficient for each of the wiring W1 and the wiring W2.

[0099] The operation of the controller 51 will be described in detail later.

[0100] The main circuit board 50 is fixed to the base 40 by fasteners such as screws (not shown). When the main circuit board 50 is fixed to the base 40, it is connected to the battery case 41 by wiring (not shown).

[0101] [Cover 60] The cover 60 (FIG. 2(b)) accommodates the main circuit board 50 therein and is ＯＵＴ The cover 60 is a part that constitutes the external appearance of the device. The cover 60 may be made of any material such as metal or resin.

[0102] In this embodiment, as an example, the cover 60 has a plate portion 61 and a peripheral wall 62 that rises forward from the outer periphery of the plate portion 61. A numeric keypad unit 63 is provided on the plate portion 61.

[0103] The cover 60 is fixed to the base 40 by fasteners such as screws (not shown). The numeric keypad unit 63 is connected to the controller 51 of the main circuit board 50 by wiring (not shown).

[0104] When the lock system 100 is attached to the door 1000, the communication port P ２１３－５１ and the communication port P of the controller 51 of the main circuit board 50 ５１－２１３ and a wiring W1 connecting the controller 213 of the actuator module 21. ２１３－２２２and the communication port P of the controller 222 of the communication module 22 ２２２－２１３ The wiring W3 connecting the １０ , through hole th of door body 1000M １０００ , opening op of base 40 ４０ It is placed inside.

[0105] [Operation of Lock System 100] The operation of the lock system 100 attached to the door 1000 will now be described.

[0106] [Unlocking and Locking] A user of the lock system 100 uses any instruction device (specifically, for example, a mobile terminal such as a smartphone, or a remote control dedicated to unlocking, etc.) to cause the instruction device to send an unlock instruction or a lock instruction. Note that this instruction may be sent by the user operating the instruction device, or may be sent by the instruction device without user operation. The controller 222 of the communication module 22 receives the instruction via the antenna group 224.

[0107] The controller 222 may transmit the received instruction to the controller 51 of the main circuit board 50 via the wiring W2. In this case, the controller 51 sends the received instruction to the controller 213 via the wiring W1. Alternatively, the controller 222 may transmit the received instruction to the controller 213 of the actuator module 21 via the wiring W3 without going through the controller 51.

[0108] The controller 213 of the actuator module 21 controls the motor driver 214 in accordance with the received instruction to rotate the motor 215. As a result, if the received instruction is an unlocking instruction, the motor 215 rotates in a direction to move the deadbolt 1000B to the retracted position. If the received instruction is a locking instruction, the motor 215 rotates in a direction to move the deadbolt 1000B to the extended position. Control of the motor driver 214 based on an instruction received from the controller 51 is an example of "second drive control." Control of the motor driver 214 based on an instruction received from the controller 222 without going through the controller 51 is an example of "first drive control." Any control of the motor driver 214 performed by the controller 213 without receiving an instruction from the controller 51 is also an example of "first drive control." When the controller 213 executes control corresponding to the "first drive control," it may notify the controller 51 that the control has been executed.

[0109] When the controller 222 transmits an unlock instruction or a lock instruction to the controller 51 of the main circuit board 50, the controller 51 transmits the received instruction via the wiring W1 to the controller 213 of the actuator module 21. By transmitting the unlock instruction or the lock instruction to the actuator module 21 via the controller 51 of the main circuit board 50 in this way, it is possible for the controller 51 to determine, for example, whether the instruction has been transmitted by an authenticated user.

[0110] On the other hand, when the controller 222 sends an unlock command or a lock command to the controller 213 of the actuator module 21, there is no need to operate the controller 51 of the main circuit board 50 to lock or unlock the door. This reduces the power consumed by locking and unlocking the door.

[0111] Note that even when the controller 213 receives an instruction from the controller 222, the controller 213 may determine whether the instruction has been sent from an authenticated user, and if the instruction has been sent from an authenticated user, may rotate the motor 215 (i.e., lock / unlock). Furthermore, for example, when the controller 213 or the controller 51 receives an instruction from the controller 222, the controller 213 or the controller 51 may request authentication of the instruction from an external server (not shown), and may rotate the motor 215 only when the server notifies the controller 213 that the authentication has been successful.

[0112] Additionally, a user of the lock system 100 can drive the motor 215 to lock or unlock the door 1000 by inputting a predetermined authentication number via the numeric keypad unit 63. Specifically, for example, the controller 51 may compare the authentication number input via the numeric keypad unit 63 with authentication number data stored in a memory unit (not shown; for example, mounted on the main circuit board 50), and if the authentication number matches, send an unlock instruction to the controller 213 of the actuator module 21. The controller 213 of the actuator module 21 controls the motor driver 214 in accordance with the received instruction to rotate the motor 215. The drive control of the motor driver 214 based on the authentication number input via the numeric keypad unit 63 is an example of a "second drive control."

[0113] The user of the lock system 100 can lock or unlock the door 1000 by directly touching the thumb turn ST with their hand and turning the thumb turn ST (i.e., by manually operating the thumb turn ST). When the thumb turn ST is manually operated, the controller 213 may detect that the door 1000 has been unlocked or locked based on the output of the potentiometer PM, and notify the controller 51 of the detection result.

[0114] Here, the control of the motor driver 214 executed by the controller 213 based on the locking instruction and the unlocking instruction will be described with reference to Figures 13(a) and 13(b). When the controller 213 receives the locking instruction or the unlocking instruction, it also refers to the output from the sensor group 217 and controls the motor driver 214 as follows.

[0115] In the leftmost view of Figure 13(a), the thumb turn ST extends vertically, and the door 1000 is in an unlocked state. At this time, the protrusions pt1 and pt2 of the torque limiter TL, which rotates integrally with the thumb turn ST via the shaft member SS and the output gear G4, are at 0° and 180° in the rotational direction, respectively. The protrusions PT1 and PT2 of the driven gear G3 are at -85° and 95° in the rotational direction, respectively. Hereinafter, the positions of the torque limiter TL, output gear G4, and shaft member SS when the protrusions pt1 and pt2 are at 0° and 180° in the rotational direction will be referred to as the "unlocked position." The position of the driven gear G3 when the protrusions PT1 and PL2 are at -85° and 95° in the rotational direction will be referred to as the "first neutral position."

[0116] The "rotation direction" is the direction of the central axis X of the shaft member SS. ＳＳ The angle indicating the position of the rotation direction is the rotation direction around the central axis X when viewed from the front. ＳＳ The angle is set to 0° at the position directly above the door 1000, and increases as one moves clockwise from that position. Furthermore, unless otherwise specified, the terms "clockwise direction" and "counterclockwise direction" refer to the clockwise and counterclockwise directions as viewed from the front. In the following description, the combination of the shaft member SS, output gear G4, and torque limiter TL is referred to as the "lock interlocking unit." The "lock interlocking unit" is a mechanism that interlocks with the deadbolt 1000B and thumb turn ST of the door 1000.

[0117] Assume that the controller 213 receives a lock command when the torque limiter TL is in the state shown in the leftmost diagram in FIG. 13(a). At this time, the controller 213 determines that the driven gear G3 is in the first neutral position based on the outputs of the magnetic sensors MS1 to MS4 of the sensor group 217. Furthermore, the controller 213 determines that the lock interlocking unit is in the unlocked position based on the output of the potentiometer PM of the sensor group 217. Then, the controller 213 controls the motor driver 214 to drive the motor 215, causing the driven gear G3 to rotate clockwise to the position shown in the second diagram from the left in FIG. 13(a).

[0118] At this time, the protrusions PT1 and PT2 come into contact with the protrusions pt1 and pt2, pressing them clockwise (at this time, the lock interlocking mechanism and the third driven gear G3 are in a connected state). Therefore, the torque limiter TL rotates together with the driven gear G3 to the position shown in the second diagram from the left in Figure 13(a). This causes the lock interlocking unit, and therefore the output shaft S2, to rotate, and the deadbolt 1000B of the door 1000 moves to the protruding position. In other words, the door 1000 is locked. In addition, the input shaft S1 rotates, and the thumb turn ST extends in the left-right direction.

[0119] In the second diagram from the left in Figure 13(a), the protrusions pt1 and pt2 of the torque limiter TL are located at 90° and 270° in the rotational direction, respectively. The protrusions PT1 and PT2 of the driven gear G3 are located at 85° and 265° in the rotational direction, respectively. Hereinafter, the position of the lock interlocking part when the protrusions pt1 and pt2 are located at 90° and 270° in the rotational direction will be referred to as the "locked position." The position of the driven gear G3 when the protrusions PT1 and PL2 are located at 85° and 265° in the rotational direction will be referred to as the "locked position."

[0120] The controller 213 rotates the driven gear G3 to the locking completion position to lock the door 1000, and then rotates the driven gear G3 counterclockwise to the position shown in the third diagram from the left in FIG. 13(b). At this time, the protrusions PT1 and PT2 move away from the protrusions pt1 and pt2, so the torque limiter TL does not rotate (at this time, the lock interlocking unit and the third driven gear G3 are separated). In the third diagram from the left in FIG. 13(a), the protrusions PT1 and PT2 of the driven gear G3 are at positions -5° and 175° in the rotational direction, respectively. Hereinafter, the position of the driven gear G3 when the protrusions PT1 and PL2 are at positions -5° and 175° in the rotational direction will be referred to as the "second neutral position."

[0121] 13(a), when the torque limiter TL is in the locked position and the driven gear G3 is in the second neutral position, the protrusions PT1 and PT2 are spaced apart from the protrusions pt1 and pt2. Therefore, even if the user of the lock system 100 operates the thumb turn ST and rotates the lock interlocking part to the unlocked position, the driven gear G3 is not pressed at that time.

[0122] In the state shown in the third diagram from the left in Fig. 13(a), when the user operates the thumb turn ST and rotates the lock interlocking unit to the unlocked position, the protrusions pt1, pt2 and the protrusions PT1, PT2 are in the positions shown in the diagram at the right end of Fig. 13(a). At this time, the lock interlocking unit is in the unlocked position, and the driven gear G3 is in the second neutral position.

[0123] Next, a case where the controller 213 receives an unlock command in the state shown in the third diagram from the left in FIG. 13(a) will be described.

[0124] The leftmost diagram in FIG. 13(b) shows the same state as the third diagram from the left in FIG. 13(a). That is, the lock interlocking unit is in the locked position, and the driven gear G3 is in the second neutral position. In this state, when the controller 213 receives a lock command, the controller 213 determines that the driven gear G3 is in the second neutral position based on the outputs of the magnetic sensors MS1 to MS4 of the sensor group 217. The controller 213 also determines that the lock interlocking unit is in the locked position based on the output of the potentiometer PM of the sensor group 217. Then, the controller 213 controls the motor driver 214 to drive the motor 215, causing the driven gear G3 to rotate counterclockwise to the position shown in the second diagram from the left in FIG. 13(b).

[0125] At this time, the protrusion PT1 contacts the protrusion pt2, and the protrusion PT2 contacts the protrusion pt1, pressing the protrusions pt1 and pt2 counterclockwise. Therefore, the torque limiter TL rotates together with the driven gear G3 to the position shown in the second diagram from the left in FIG. 13(b). This rotates the lock interlocking unit and, in turn, the output shaft S2, and moves the deadbolt 1000B of the door 1000 to the storage position. In other words, the door 1000 is unlocked. Furthermore, the input shaft S1 rotates, causing the thumb turn ST to extend vertically.

[0126] In the second diagram from the left in Figure 13(b), the torque limiter TL is in the unlocked position. Also, the protrusions PT1 and PT2 of the driven gear G3 are at positions of -175° and 5° in the rotational direction, respectively. Hereinafter, the position of the driven gear G3 when the protrusions PT1 and PL2 are at positions of -175° and 5° in the rotational direction will be referred to as the "completed unlocking position."

[0127] The controller 213 rotates the driven gear G3 to the unlocked position to unlock the door 1000, and then rotates the driven gear G3 clockwise to the position shown in the third diagram from the left in Figure 13(b). At this time, the protrusion PT1 moves away from the protrusion pt2, and the protrusion PT2 moves away from the protrusion pt1, so the torque limiter TL does not rotate. In the third diagram from the left in Figure 13(b), the driven gear G3 is in the first neutral position.

[0128] 13(b), when the torque limiter TL is in the unlocked position and the driven gear G3 is in the first neutral position, the protrusions PT1 and PT2 are spaced apart from the protrusions pt1 and pt2. Therefore, even if the user of the lock system 100 operates the thumb turn ST to rotate the lock interlocking part to the locked position, the driven gear G3 is not pressed at that time.

[0129] In the state shown in the third diagram from the left in Fig. 13(b), when the user operates the thumb turn ST and rotates the lock interlocking part to the locked position, the protrusions pt1, pt2 and the protrusions PT1, PT2 are positioned as shown in the diagram at the right end of Fig. 13(b). At this time, the lock interlocking part is in the locked position, and the driven gear G3 is in the first neutral position.

[0130] In this way, the controller 213 controls the motor driver 214 based on the unlock or lock instruction and the output of the sensor group 217, and rotates the lock interlocking part, i.e., the torque limiter TL, the output gear G4, and the shaft member SS, between the unlock position and the lock position.

[0131] [Extending Battery Life] The following describes extending the life of the battery BT, which is performed by the controller 213 of the actuator module 21.

[0132] As described above, the controller 213 reduces the voltage using the DC / DC converter 218 when power is supplied from the battery BT to the motor 215. By reducing the voltage in this manner, the voltage when power is supplied to the motor 215 is stabilized, and the operation of the motor 215 is stabilized.

[0133] However, when the output voltage of the battery BT drops and the voltage value before the voltage step-down falls below a threshold value (i.e., the maximum voltage value that can be stepped down), the DC / DC converter 218 is no longer able to step down the voltage because the difference between the voltage value before the voltage step-down and the voltage value after the voltage step-down becomes small.

[0134] In the period from time T0 to time T1 in Figure 14, the battery output voltage gradually decreases. However, the output voltage is sufficiently large that the DC / DC converter 218 can step down the voltage. On the other hand, at time T1 in Figure 14, the battery output voltage is below the threshold value. Therefore, after time T1, the DC / DC converter 218 cannot step down the voltage. In the lock system 100, if time T1 is the timing when the battery ends its use, the actual life of the battery is from time T0 to time T1.

[0135] In contrast, the controller 213 of the actuator module 21 in this embodiment stops stepping down the voltage using the DC / DC converter 218 after time T1. Then, power is supplied from the battery BT to the motor 215 without stepping down the voltage using the DC / DC converter 218. This allows the actual life of the battery BT in the lock system 100 to be extended until time T2, which is after time T1 when the voltage before stepping down becomes equal to or lower than the threshold. In this embodiment, extending the actual life of the battery in this way is referred to as "extending the battery life."

[0136] A specific procedure for extending the life of the battery BT executed by the controller 213 will be described with reference to the flowchart of FIG.

[0137] First, as a premise, the lock system 100 is configured so that power can be supplied from the battery BT to the motor 215 via two electrical paths as shown in Fig. 16. That is, a first path runs from the battery BT through the electrical wiring WW1, DC / DC converter 218, and electrical wiring WW2, and a second path runs from the battery BT through the electrical wiring WW1, bypass circuit 220, and electrical wiring WW2. The controller 213 switches between power supply via the first path and power supply via the second path by switching the switch SW.

[0138] First, the controller 213 uses the first voltmeter VM1 to measure a voltage value V1 at a measurement point MP1 in the electrical wiring WW1 connecting the battery BT and the switch SW (step S101). The measurement point MP1 may be located either inside or outside the actuator module 21. The voltage value V1 measured at the measurement point MP1 is the output voltage of the battery BT before the voltage is stepped down by the DC / DC converter 218.

[0139] Next, the controller 213 calculates the measured voltage value V1 as a threshold value TH Ｖ１ (Step S102). The controller 213 compares the voltage value V1 with the threshold value TH Ｖ１ If the voltage value V1 is greater than the threshold value TH (S102: NO), the controller 213 executes step S101 again. Ｖ１ If the condition is the same as or lower than the above (S102: YES), the controller 213 controls the switch SW to connect the battery BT to the bypass circuit 220 (step S103). This allows power to be supplied from the battery BT to the motor 215 without stepping down the voltage using the DC / DC converter 218. Note that if the battery BT is already connected to the bypass circuit in step S103, the controller 213 skips step S103 and proceeds to the next step S104.

[0140] Thereafter, the controller 213 uses the first voltmeter VM1 to measure a voltage value V1 at a measurement point MP1 in the electrical wiring WW1 connecting the battery BT and the switch SW (step S104), and compares the measured voltage value V1 with a threshold value TH Ｖ１ (Step S105). The controller 213 compares the voltage value V1 with the threshold value TH Ｖ１ If the voltage value V1 is equal to or less than the threshold value TH (S105: NO), the controller 213 executes step S104 again. Ｖ１ If the difference is greater than 1 (S105: YES), the switch SW is controlled to connect the battery BT to the DC / DC converter 218 (step S106). As a result, power is supplied from the battery BT to the motor 215 while being stepped down by the DC / DC converter 218.

[0141] [Monitoring of Remaining Battery Capacity] Monitoring of the remaining capacity of the battery BT performed by the controller 213 of the actuator module 21 will be described.

[0142] The controller 213 monitors the remaining charge of the battery BT while the lock system 100 is in operation, and if it determines that the remaining charge of the battery BT is low, it displays a message urging the user to replace the battery. The monitoring of the remaining charge of the battery BT by the controller 213 may be performed continuously while the lock system 100 is in operation, or may be performed periodically or irregularly at intervals.

[0143] The controller 213 monitors the remaining capacity of the battery BT based on the following principle.

[0144] The output voltage of a battery decreases when a load is applied to the battery. According to the findings of the inventors of the present disclosure, the extent of the decrease in output voltage when a load is applied to the battery increases as the remaining battery charge decreases. This is shown in Figure 17.

[0145] The dotted line in Figure 17 is a graph showing the decrease in output voltage due to a decrease in the remaining battery capacity, based only on values ​​measured when the battery is in an unloaded state. In this way, when focusing only on the measurements when the battery is in an unloaded state, the decrease in output voltage (i.e., the decrease in the remaining battery capacity) is roughly linear.

[0146] On the other hand, the solid line in Figure 17 shows the decrease in output voltage when a predetermined load is applied to the battery for a predetermined period of time when the output voltage in a no-load state is the value shown in the dotted line graph. For example, the leftmost valley in the solid line graph shows the decrease in output voltage when a load is continuously applied to the battery from time 1 to time 10. Similarly, the second valley from the left in the solid line graph shows the decrease in output voltage when a load is continuously applied to the battery from time 11 to time 20.

[0147] 17, when a predetermined load is applied to a battery for a predetermined period of time, the decrease in output voltage increases as the duration of the load increases, and also increases as the output voltage in a no-load state decreases. In other words, as the battery continues to be used, the decrease in output voltage increases monotonically as long as there is battery power remaining.

[0148] Based on this, the controller 213 of the actuator module 21 compares the difference between the output voltage of the battery BT measured under no load and the output voltage of the battery BT measured under load with a threshold value, and if the difference is greater than the threshold value, in other words, if the extent of the decrease in output voltage due to the load state is greater than the threshold value, it determines that the remaining battery charge has decreased.

[0149] The specific procedure for monitoring the remaining capacity of the battery BT executed by the controller 213 will be described with reference to the flowchart of FIG.

[0150] 18, the controller 213 first determines whether the motor 215 is stationary in step S201. If the motor 215 is stationary (S201: YES), the controller 213 measures the no-load voltage value (no-load voltage value) V at the measurement point MP1 using the first voltmeter VM1. Ｎ (Step S202), and the measured no-load voltage value V Ｎ The controller 213 records the result in the storage unit 219 (step S203). After step S203, the controller 213 executes step S201 again.

[0151] When the motor 215 is in a driving state (S201: NO), the controller 213 measures the load voltage value (load voltage value) V at the measurement point MP1 using the first voltmeter VM1. Ｌ (Step S204), and the measured load voltage value V Ｌ The controller 213 then stores the no-load voltage value V recorded in step S203 in the storage unit 219 (step S205). Ｎ and the load voltage value V stored in step S205 Ｌ The difference D between V and V is calculated using the following formula (1) (step S206). Ｎ -V Ｌ ...(1)

[0152] Next, the controller 213 calculates the calculated difference D as a threshold value TH Ｄ (Step S207). The controller 213 compares the difference D with the threshold value TH Ｄ If it is smaller than (S207: NO), step S201 is executed again.

[0153] The controller 213 determines whether the difference D is a threshold value TH Ｄ If the battery level is equal to or greater than this (S207: YES), the motor 215 is stopped (step S208), and a message indicating that the battery level is low is displayed to the user (step S209). The message indicating that the battery level is low can be displayed to the user, for example, by turning on an indicator light (not shown) provided on the cover 60, or by displaying an icon on the display if the cover 60 has a display.

[0154] After step S209, the controller 213 ends the process of monitoring the remaining battery charge.

[0155] [Failure Determination of Actuator Module] The failure determination performed by the controller 213 of the actuator module 21 will be described.

[0156] The controller 213 determines whether or not there is a malfunction in each part of the actuator module 21 while the lock system 100 is in operation. Specifically, the controller 213 determines whether or not there is a malfunction in each part of the actuator module 21, for example, according to the flowcharts shown in Figures 19 and 20. The malfunction determination may be performed periodically or irregularly while the lock system 100 is in use, or may be performed in response to a user instruction.

[0157] First, the controller 213 measures the voltage value V1 at the measurement point MP1 using the first voltmeter VM1, and determines whether the voltage value V1 is equal to or lower than the threshold value TH Ｖ１Ｈ The controller 213 determines whether the voltage value V1 is greater than the threshold value TH (step S301). Ｖ１Ｈ If the detected voltage is greater than 0.01 V (S301: YES), it is determined that an overvoltage is being applied to the actuator module 21 (step S302), and the determination result is displayed (step S303). The display of the determination result in step S303 can be performed, for example, by lighting an indicator light (not shown) provided on the cover 60, or by displaying an icon on the display if the cover 60 has a display. Note that in step S303, various information can be displayed by the indicator light by changing the color, blinking pattern, etc. of the indicator light based on the content of the determination result.

[0158] The controller 213 determines whether the voltage value V1 is equal to the threshold value TH Ｖ１Ｈ If it is determined that the voltage value V1 is equal to or less than the threshold value TH (S301: NO), Ｖ１Ｌ (threshold TH Ｖ１Ｈ The controller 213 determines whether the voltage value V1 is smaller than the threshold value TH Ｖ１Ｌ If it is determined that the battery voltage is smaller than the reference voltage (YES at S304), it is determined that the battery voltage has dropped (step S305), and the determination result is displayed (step S303).

[0159] The controller 213 determines whether the voltage value V1 is equal to the threshold value TH Ｖ１Ｌ If it is determined that the voltage is equal to or greater than the threshold value TH (S304: NO), the voltage value V2 at the measurement point MP2 is acquired using the second voltmeter VM2, and the voltage value V2 is determined to be equal to or greater than the threshold value TH Ｖ２Ｌ Smaller value or threshold TH Ｖ２Ｈ 16, the measurement point MP2 is a point within the wiring WW2. Ｖ１Ｌ If it is determined that the voltage is equal to or greater than the reference voltage, power is supplied to the motor 215 via the DC / DC converter 218. Therefore, the voltage value V2 acquired in step S304 is the voltage after being stepped down by the DC / DC converter 218.

[0160] The controller 213 determines whether the voltage value V2 is equal to the threshold value TH Ｖ２Ｌ Smaller value or threshold TH Ｖ２Ｈ If the value is larger than the threshold (S306: YES), it is determined that a fault has occurred in the DC / DC converter 218 (step S307), and the determination result is displayed (step S303).

[0161] The controller 213 determines whether the voltage value V2 is equal to the threshold value TH Ｖ２Ｌ or more and threshold TH Ｖ２Ｈ If the current value A measured by the ammeter AM is equal to or less than the threshold value TH (S306: NO), ＡＨ (Step S308). The controller 213 determines whether the current A is greater than the threshold value TH ＡＨIf it is determined that the value is greater than the reference value (S308: YES), it is determined that at least one of the following has occurred: a failure of the motor driver 214, a short circuit failure of the motor 215, or a motor lock due to a failure of the power transmission unit 216 (step S309), and the determination result is displayed (step S303).

[0162] The controller 213 determines whether the current A is greater than the threshold value TH ＡＨ If it is determined that the current A is equal to or less than the threshold value TH (S308: NO), ＡＬ The controller 213 determines whether the current A is smaller than the threshold value TH ＡＬ If it is determined that the difference is smaller than the reference value (S310: YES), it is determined that at least one of a failure of the motor driver 214, an open failure of the motor 215, or a broken shaft of the motor 215 has occurred (step S311), and the determination result is displayed (step S303).

[0163] The controller 213 determines whether the current A is greater than the threshold value TH ＡＬ If it is determined that the value is equal to or greater than the reference value (S310: NO), the controller 213 determines whether or not there is an abnormality in the change in the output value of the potentiometer PM (step S312). If it is determined that there is an abnormality in the change in the output value of the potentiometer PM (S312: YES), the controller 213 determines that at least one of the following has occurred: a broken shaft of the motor 215, a disengagement of the gear, or a malfunction of the potentiometer PM (step S313), and displays the determination result (step S303).

[0164] If the controller 213 determines that the output value of the potentiometer PM is changing normally (S312: NO), it determines whether or not there is an abnormality in the change in the output values ​​of the magnetic sensors MS1 to MS4 (step S314).If the controller 213 determines that there is an abnormality in the change in the output values ​​of the magnetic sensors MS1 to MS4 (S314: YES), it determines that a failure has occurred in at least one of the magnetic sensors MS1 to MS4 (step S315) and displays the determination result (step S303).

[0165] If the controller 213 determines that the output values ​​of the magnetic sensors MS1 to MS4 are changing normally (S314: NO), it determines that the actuator module 21 is normal (step S316) and displays the determination result (step S303).

[0166] After displaying the determination result in step S303, the controller 213 ends the failure determination process.

[0167] [Automatic Calibration of Unlocked and Locked Positions] The automatic calibration of the unlocked and locked positions of the combination of the torque limiter TL, output gear G4, and shaft member SS of the power transmission unit 216 (i.e., the lock interlocking unit) performed by the controller 213 of the actuator module 21 will be described.

[0168] The locked and unlocked positions of the lock interlocking unit shown in Figures 13(a) and 13(b) may differ depending on the configuration of the door 1000 to which the lock system 100 is attached. Furthermore, the locked and unlocked positions of the lock interlocking unit may differ even between doors 1000 with the same configuration due to manufacturing errors, etc. The controller 213 of this embodiment is configured to automatically calibrate the unlocked and locked positions of the lock interlocking unit when the lock system 100 is attached to the door 1000.

[0169] The controller 213 may perform automatic calibration of the unlocked and locked positions of the lock interlocking unit as an initial calibration when the lock system 100 is installed on the door 1000. The timing for starting the initial calibration may be determined appropriately depending on the specifications of the lock system 100. For example, the initial calibration may be started automatically when the controller 213 is powered on, or when the user performs a predetermined input operation via the numeric keypad unit 63 of the cover 60. Furthermore, the controller 213 may perform automatic calibration of the unlocked and locked positions periodically or irregularly after the lock system 100 is installed on the door 1000, or may perform automatic calibration every time an unlocking or locking operation is performed. The state of the deadbolt movement mechanism BM of the door 1000 may change during use. Therefore, by periodically or irregularly performing automatic calibration of the unlocked and locked positions, the lock system 100 can continuously and appropriately unlock and lock the door 1000 over a long period of time.

[0170] Specifically, the controller 213 performs automatic calibration of the unlocked position (start point) and locked position (end point) of the lock interlocking unit in accordance with the flowchart shown in FIG. 21, for example.

[0171] First, the controller 213 controls the motor driver 214 to drive the motor 215 and rotate the driven gear G3 in a clockwise direction (step S401). Next, the controller 213 measures a current value A (i.e., a driving current of the motor 215) using the ammeter AM of the sensor group 217, and compares the measured current value A with a threshold value TH Ａ (step S402).

[0172] When the driven gear G3 is rotated clockwise to rotate the lock interlocking part to the locked position, the lock interlocking part is restricted from further rotation and stops. This is because the deadbolt 1000B of the door 1000 reaches the protruding position, reaching one limit of the movable range of the deadbolt movement mechanism BM. In this state, if the driven gear G3 continues to rotate clockwise, the rotation of the driven gear G3 is restricted by the lock interlocking part, and the drive current of the motor 215 increases. Therefore, the controller 213 determines whether the current value A reaches the threshold TH Ａ If it is determined that the current value A is equal to or greater than the threshold value TH (S402: YES), Ａ The output value of the potentiometer PM at this point is recorded in the storage unit 219 as a value indicating the locked position (step S403). Ａ Based on the above, the lock position is identified and the identified lock position is recorded.

[0173] The controller 213 determines whether the current value A is equal to or exceeds the threshold value TH. Ａ If it is determined that the value is smaller (S402: NO), step S402 is executed again.

[0174] After step S403, the controller 213 controls the motor driver 214 to drive the motor 215 and rotate the driven gear G3 counterclockwise (step S404). Next, the controller 213 measures the current value A (i.e., the drive current of the motor 215) using the ammeter AM of the sensor group 217, and compares the measured current value A with the threshold value TH Ａ (step S405).

[0175] The controller 213 determines whether the current value A is equal to or exceeds the threshold value TH. Ａ If it is determined that the current value A is equal to or greater than the threshold value TH (S405: YES), Ａ The output value of the potentiometer PM at this point is recorded in the storage unit 219 as a value indicating the unlocked position (step S406). ＡThe controller 213 determines the unlocking position based on the above and records the determined unlocking position. In this case, the increase in the current value A is caused by the deadbolt 1000B of the door 1000 reaching the storage position, the deadbolt movement mechanism BM reaching the other limit of its movable range, and further rotation of the lock interlocking part being restricted. The controller 213 determines the current value A based on the threshold value TH Ａ If it is determined that the value is smaller (S405: NO), step S405 is executed again.

[0176] After step S406, the controller 213 ends the calibration step. After the calibration step is completed, the controller 213 controls the motor driver 214 to stop the motor 215 when the output value of the potentiometer PM reaches the value recorded in step S403 or step S406. This stops the motor 215 at an appropriate position, so that the lock interlocking unit can be set to the locked or unlocked position without applying an excessive load to the motor 215.

[0177] The above description of the calibration process is based on the premise that the door 1000 has a configuration in which the lock interlocking part can be locked by rotating it clockwise and can be unlocked by rotating it counterclockwise. A door that opens on the left side as viewed from the inside of the room (hereinafter referred to as a "left-swinging door") usually has this configuration.

[0178] On the other hand, some doors have a configuration in which the lock interlocking part can be locked by rotating it counterclockwise and unlocked by rotating it clockwise. Doors that open to the right as viewed from the inside of the room (hereinafter referred to as "right-swinging doors") usually have this configuration. When installing the lock system 100 on a right-swinging door, the rotation direction of the driven gear G3, and therefore the motor 215, is opposite to that when installing the lock system 100 on a left-swinging door.

[0179] 22A and 22B show the positional relationship between the lock interlocking unit and the driven gear G3 when the lock system 100 is installed on a right-swinging door. Fig. 22A shows the state where the lock interlocking unit is in the locked position and the driven gear G3 is in the fully locked position. Fig. 22B shows the state where the lock interlocking unit is in the unlocked position and the driven gear G3 is in the fully unlocked position.

[0180] As can be seen from FIG. 22(b), when the lock system 100 is installed on a right-swinging door, the clockwise rotation of the driven gear G3 is restricted by the lock interlocking unit when the lock interlocking unit is in the unlocked position. Therefore, in step S403 of the flowchart shown in FIG. 21, the controller 213 may first refer to the installation information recorded in the memory unit 219. The installation information indicates whether the lock system 100 is to be installed on a right-swinging door or a left-swinging door. The installation information may be input by the installer when installing the lock system 100 on the door 1000, for example.

[0181] When the installation information indicates a left-hand door, the controller 213 determines whether the current value A is equal to or greater than the threshold value TH Ａ The output value of the potentiometer PM at the time when the current value A becomes larger than the threshold value TH is recorded in the storage unit 219 as a value indicating the locked position. Ａ The value of the potentiometer PM at the time when the current value A becomes larger than the threshold value TH is recorded in the storage unit 219 as a value indicating the unlocked position. Ａ On the other hand, if it is determined in step S403 that the installation information indicates a right-hand door, the value of the potentiometer PM at the time when the current value A becomes larger than the threshold value TH is recorded in the storage unit 219 as a value indicating the unlocked position. Ａ The value of the potentiometer PM at the time when it becomes larger than the value of the potentiometer PM is recorded in the memory unit 219 as indicating the locked position.

[0182] Additionally, the controller 215 can refer to the attachment information at any timing, such as before step S401 or after step S406, and distinguish between the locked position and the unlocked position.

[0183] [Dynamic Antenna Switching] The controller 222 of the communication module 22 dynamically switches which of the first antenna AN1 to the fourth antenna AN4 of the antenna group 224 to use.

[0184] The strength of the radio waves received by each of the first antenna AN1 to the fourth antenna AN4 varies depending on the surrounding conditions, the position of the indicator device, etc. The controller 222 sequentially compares the strength of the radio waves received by each of the first antenna AN1 to the fourth antenna AN4, sequentially selects the radio wave with the strongest strength from among the radio waves received by each of the first antenna AN1 to the fourth antenna AN4, and sends it to the wireless communication interface 223.

[0185] The main features of this embodiment and the advantageous effects based on these features are summarized below.

[0186] (1) Feature 1 In the actuator module 21 of the lock unit 20 of this embodiment, the front plate 211Sa of the housing 211 has an opening OP. ２１１Ｓａ The output gear G4 of the power transmission unit 216 has an opening OP ２１１Ｓａ That is, the front plate 211Sa of the housing 211 and the output gear G4 are at the same position in the front-rear direction. This allows the size of the actuator module 21 in the front-rear direction to be reduced.

[0187] Here, in order to reduce the dimension of the actuator module 21 in the front-to-rear direction, it is also possible to reduce the thickness of each gear of the power transmission unit 216. However, because a large torque is applied to the driven gear G3, which is arranged coaxially with the output shaft S2, it is desirable from the standpoint of strength that the driven gear G3 has a sufficient thickness. As in this embodiment, by arranging the output gear G4, which is arranged coaxially with the output shaft S2, and the front plate 211Sa of the housing 211 at the same position in the front-to-rear direction, it is possible to reduce the thickness of the actuator module 21 while ensuring the strength of the driven gear G3 and, ultimately, the power transmission unit 216.

[0188] (2) Feature 2 In the actuator module 21 of the lock unit 20 of this embodiment, the small diameter gear G12 of the driven gear G1, the large diameter gear G21 of the driven gear G2, and the circuit board 212 are located at the same position in the front-to-rear direction. This allows the front-to-rear dimension of the actuator module 21 to be reduced.

[0189] (3) Feature 3 In the actuator module 21 of the lock unit 20 of this embodiment, the shaft member SS is detachable from the output gear G4 and, in turn, from other parts of the power transmission unit 216 (i.e., parts of the power transmission unit 216 other than the shaft member SS). Here, the shape of the deadbolt movement mechanism of the door, i.e., the shape of the part that engages with the output shaft S2 of the actuator module 21, may vary depending on the type of door. The recess R of the output shaft S2 of this embodiment Ｓ２ is suitable for the shape of the engagement portion of the deadbolt movement mechanism BM of the door 1000 of this embodiment, but the engagement portion of the deadbolt movement mechanism of a door other than the door 1000 may have a different shape. However, in the actuator module 21 of this embodiment, the shaft member SS including the output shaft S2 is detachable from other parts of the power transmission unit 216, so the recess R is used instead of the shaft member SS. Ｓ２ By simply using a different shaft member with a different shape, the door can be universally attached to a variety of doors.

[0190] (4) Feature 4 In the actuator module 21 of the lock unit 20 of this embodiment, a circuit board 212 on which a controller 213 and a group of sensors 217 are mounted, a motor 215, and a power transmission unit 216 are provided inside a housing 211. The controller 213 is connected to a communication port P ２１３－５１ , communication port P ２１３－２２２In this way, by integrating the power mechanism that provides power for unlocking, the sensing mechanism that detects the state of the actuator module 21, and the components related to the communication mechanism, it is possible to realize a space-saving, multi-functional actuator module 21. Furthermore, since the actuator module 21 of this embodiment is equipped with each of the above mechanisms, various processes can be performed by the actuator module 21 alone, without using the controller 51 on the main circuit board 50.

[0191] (5) Feature 5 In the actuator module 21 of the lock unit 20 of this embodiment, the circuit board 212 has an open annular sub-region 212B. When viewed in the front-rear direction, the sub-region 212B is disposed so as to surround the shaft member SS. In this way, the sub-region 212B is defined as an opening OP. ２１２Ｂ By making the opening annular, it is possible to appropriately arrange the magnetic sensors MS1 to MS4 for detecting the position of the driven gear G3, while making the circuit board 212 smaller. In other words, the magnetic sensors necessary for detecting the position of the driven gear G3 and the wiring from the magnetic sensors can be arranged by using the opening OP ２１２Ｂ By doing so, the circuit board 212 can be made smaller. ２１２Ｂ By disposing another structure (the second driven gear G2 in this embodiment) in the actuator module 21, the dimension of the actuator module 21 in the front-rear direction can be reduced.

[0192] In addition, in the actuator module 21 of the lock unit 20 of this embodiment, the circuit board 212 is J-shaped as a whole. By making the circuit board 212 J-shaped in this way, it is possible to improve the yield of cutting out the circuit board 212 during the manufacturing of the actuator module 21. In other words, by cutting out the J-shaped circuit boards 212 in a layout where they are inverted 180° with respect to each other and combined, one opening OP ２１２Ｂ The portion corresponding to the first sub-region 212B can be used as the other sub-region 212B, thereby improving yield.

[0193] (6) Feature 6 In the actuator module 21 of the lock unit 20 of this embodiment, the controller 213 determines the remaining charge of the battery BT based on the difference between the value of the output voltage of the battery BT measured in an unloaded state (unloaded voltage value) and the value of the output voltage of the battery BT measured in a loaded state (load voltage value). This allows the remaining charge of the battery BT to be determined appropriately, and the timing for requesting a battery replacement from the user of the lock system 100 can be delayed. In other words, the battery BT can be used more efficiently. Specifically, as follows.

[0194] As described above, the extent of the drop in output voltage when a load is applied to a battery increases as the remaining battery charge decreases. When the remaining battery charge reaches a certain level, the load voltage drops sharply, as shown at time 140 in Figure 17 . In this case, even if the no-load voltage is sufficient to drive the motor, the output voltage drops sharply when a load is applied to drive the motor, making it impossible to drive the motor. Monitoring only the no-load voltage value makes it difficult to predict whether and when such a sudden drop in output voltage will occur. Therefore, conventional battery charge monitoring based on the no-load voltage value urges users to replace the battery well in advance. That is, a relatively large threshold value is set for determining the remaining charge, and even if a certain amount of battery charge remains, the battery is deemed to be "empty" in case of an unexpected drop in output voltage.

[0195] In contrast, the controller 213 of the actuator module 21 of this embodiment determines the remaining battery charge based on the magnitude of the drop in output voltage when a load is applied to the battery. That is, the controller 213 determines the remaining battery charge based on both the voltage value under no load and the voltage value under load. For example, the timing of a sudden drop in output voltage under load (time 140 in FIG. 17 ) can be predicted to some extent based on the magnitude of the drop in output voltage when a load is applied to the battery. Therefore, in this embodiment, there is no need to prepare for a sudden drop in output voltage, as in conventional battery charge monitoring based solely on the no-load voltage value. Therefore, the timing at which the remaining battery charge is determined to be insufficient can be delayed. This allows for a delay in the timing at which the user is asked to replace the battery, thereby allowing for more efficient use of the battery BT.

[0196] Furthermore, in the lock system 100 of this embodiment, the controller 213 of the lock unit 20 monitors the remaining battery power, so there is no need to install an ammeter or controller for monitoring the remaining battery power outside the lock unit 20. Therefore, the number of parts and the size of the lock system 100 as a whole can be reduced.

[0197] (7) Feature 7 In the actuator module 21 of the lock unit 20 of this embodiment, the controller 213 stops the step-down by the DC / DC converter 218 based on a drop in the output voltage of the battery BT. This eliminates the decrease in battery utilization efficiency due to the characteristics of the DC / DC converter, which makes it impossible to step down the voltage when the difference between the voltage value before and after step-down becomes small, and makes it possible to substantially extend the life of the battery.

[0198] (8) Feature 8 In the actuator module 21 of the lock unit 20 of this embodiment, the controller 213 determines whether or not there is a malfunction in each part of the actuator module 21. This allows for early detection of a malfunction in the actuator module 21. Furthermore, when repairing the actuator module 21, the location of the malfunction can be easily identified.

[0199] (9) Feature 9: In the actuator module 21 of the lock unit 20 of this embodiment, the controller 213 calibrates the unlocked and locked positions of the lock interlocking unit (i.e., the torque limiter TL, the output gear G4, and the shaft member SS) based on changes in the drive current of the motor 215. This allows the worker installing the lock system 100 to the door 1000 to easily and efficiently install the lock system 100 without having to set the unlocked and locked positions. Furthermore, by periodically or irregularly performing automatic calibration after installation, the unlocked and locked positions can be maintained appropriately for a long period of time, regardless of physical changes such as deterioration of the door 1000. Furthermore, when the position of the lock interlocking unit is detected using a potentiometer, the potentiometer can detect the rotation angle of the output gear G4 360°, allowing for accurate (fine) detection of the rotation angle of the output gear G4. Therefore, more precise control (i.e., more accurate calibration) can be achieved for the calibration of the unlocked and locked positions. In addition, since the rotation angle of the output gear G4 is actually measured using a potentiometer, there is also the advantage that even if an installation error occurs when installing various components of the actuator module 21 (especially the lock interlocking part and potentiometer), calibration deviations due to installation errors are less likely to occur.

[0200] (10) Feature 10 In the lock unit 20 of this embodiment, the actuator module 21 includes a controller 213 connected by wiring to a motor driver 214, a motor 215, and a sensor group 217. The controller 213 also includes a communication port P for communicating with the controller 51 on the main circuit board 50. ２１３－５１ Therefore, the communication port P ２１３－５１ By connecting the controller 213 to the controller 51 via the controller 213, the actuator module 21 (and thus the lock unit 20) can be easily electrically connected to the controller 51.

[0201] If a lock unit does not have a controller with a communication port, the connection between the lock unit and the controller 51 on the main circuit board 50 must be made between the controller 51 and each of the motor drivers and sensor groups provided in the lock unit. Therefore, the number of communication ports (connection terminals) required by the lock unit increases, and the wiring becomes complicated. Furthermore, if the number and types of sensors provided in the sensor group increase, the number of communication ports required by the lock unit will further increase, and the wiring will become even more complicated. In contrast, in the lock unit 20 of this embodiment, the communication entity with the controller 51 is concentrated in the controller 213, so electrical communication connection to the controller 51 is easy.

[0202] (11) Feature 11 In the lock unit 20 of this embodiment, the controller 213 of the actuator module 21 can drive the motor 215 based on the communication module 22 receiving an unlock command or a lock command, without requiring an instruction from the controller 51 of the main circuit board 50. Furthermore, the controller 213 of the actuator module 21 can execute various controls, such as drive control of the motor 215 based on the detection results of the sensor group 217, without requiring an instruction from the controller 51 of the main circuit board 50. Therefore, the startup frequency of the controller 51 of the main circuit board 50 can be reduced, and ultimately the power consumption of the controller 51 can be reduced.

[0203] (12) Feature 12 In the lock unit 20 of this embodiment, the communication module 22 is equipped with an antenna group 224 including a first antenna AN1 to a fourth antenna AN4, and the controller 222 dynamically switches between the first antenna AN1 to the fourth antenna AN4 based on the communication status, etc. Therefore, wireless communication between the lock unit 20 and external devices can be performed stably. In addition, by selectively using high-intensity radio waves, power consumption in the communication module 22 can be reduced.

[0204] <Modifications> The following modifications can also be used in the above embodiment.

[0205] The lock system 100, lock unit 20, and actuator module 21 of the above embodiment have all of the above features (1) to (12), but are not limited to this. The lock system 100, lock unit 20, and actuator module 21 may be configured to have at least one of the above features (1) to (12). When the lock system 100, lock unit 20, and actuator module 21 are configured to have at least one of the above features (1) to (12), structures, processes, etc. that are not related to that feature may be omitted as appropriate.

[0206] The various parts of the lock system 100 of the above embodiment can be modified as follows.

[0207] [Modifications of the Circuit Board 212] In the above embodiment, the circuit board 212 has an open annular sub-region 212B, but this is not limited thereto. The sub-region 212B may have an open annular shape. In this disclosure, "annular" refers to any endless shape formed by connecting one end of a line to the other. For example, an annular member may also be a frame-shaped member having any polygonal shape, such as a triangle or a rectangle. The actuator module 21 of the above embodiment does not necessarily have to have a circuit board 212.

[0208] [Modifications Regarding the Controller 213] In the actuator module 21 of the above embodiment, the controller 213 is an MCU (microcontroller), but is not limited to this. The actuator module 21 of the above embodiment does not necessarily have to include the controller 213.

[0209] In the actuator module 21 of the above embodiment, the controller 213 is housed inside the housing 211, but this is not limited to this. The controller 213 may be provided outside the housing 211. In this case, the actuator module 21 is made up of the housing 211, the components inside the housing 211, and the controller 213 outside the housing 211.

[0210] [Modifications Related to the Motor 215] The actuator module 21 in the above embodiment uses the motor 215 as a drive unit that outputs power to move the deadbolt 1000B, but this is not limited to this. The actuator module 21 may have any drive unit. Another example of a drive unit is a linear actuator. The power transmission unit 216 may have any configuration depending on the configuration of the drive unit.

[0211] [Modifications regarding the power transmission unit 216] In the actuator module 21 of the above embodiment, the power transmission unit 216 may have any configuration that transmits the power output from the motor 215 and outputs it as power for locking and unlocking the lock.

[0212] For example, the torque limiter TL may be omitted. In this case, protrusions similar to the protrusions pt1 and pt2 of the torque limiter TL may be provided integrally with the output gear G4 in a manner that does not move in the radial direction of the output gear G4. The output gear G4 may be omitted, and the shaft member SS may be attached to the driven gear G3.

[0213] In the above embodiment, the shaft member SS has an input shaft S1 and an output shaft S2, but this is not limited to this. The shaft member SS may be configured without the input shaft S1. The engagement between the output shaft S2 and the deadbolt movement mechanism BM may be performed in various ways. For example, the tip of the shaft member SS may be inserted into a recess in the deadbolt movement mechanism.

[0214] [Modifications Related to the Sensor Group 217] In the actuator module 21 of the above embodiment, the types of sensors included in the sensor group 217 may be changed as appropriate. The actuator module 21 of the above embodiment may not include the sensor group 217. The sensor group 217 may include one or more sensors that detect the state of a drive unit such as the motor 215 and / or a power transmission unit such as the power transmission unit 216.

[0215] In the actuator module 21 of the above embodiment, the rotational position of the lock interlocking unit (i.e., the combination of the shaft member SS, output gear G4, and torque limiter TL) is detected using the output gear G4, sensor gear SG, and potentiometer PM. However, this is not limited to this. Specifically, for example, the output gear G4 and sensor gear SG may be pulleys that rotate together with the lock interlocking unit. Alternatively, instead of the output gear G4 or sensor gear SG, a rotating disk with a grid formed on its outer circumferential surface or all over may be used, and the rotational position of the lock interlocking unit may be detected by detecting the grid with an encoder. In this case, the potentiometer PM may be omitted. Alternatively, the rotational position of the lock interlocking unit may be detected using any position sensor, such as an optical or magnetic type.

[0216] In the actuator module 21 of the above embodiment, the ammeter AM is connected between the DC / DC converter 218 and the motor 215, and measures the value of the current corresponding to the voltage after being stepped down by the DC / DC converter 218 as the value of the drive current for the motor 215. However, this is not limited to this. Instead of or in addition to the ammeter AM, an ammeter connected between the battery BT and the DC / DC converter 218 may be provided.

[0217] [Modifications of DC / DC Converter 218] In the actuator module 21 of the above embodiment, any step-down converter may be provided instead of the DC / DC converter 218. Furthermore, the supply of power without step-down by the DC / DC converter 218 is not limited to the mode using the bypass circuit 220, and may simply be achieved by stopping the step-down operation of the DC / DC converter 218, for example.

[0218] [Modifications Related to the Arrangement of the Housing 211, Circuit Board 212, and Power Transmission Unit 216] In the above embodiment, the front plate 211Sa of the housing 211 and the output gear G4 of the power transmission unit 216 are arranged at the same position in the front-to-rear direction, and the small-diameter gear G12 of the driven gear G1 and the large-diameter gear G21 of the driven gear G2 are arranged at the same position in the front-to-rear direction, and the circuit board 212 is also arranged at the same position in the front-to-rear direction, but this is not limited to this. It is also possible to simply arrange the front plate 211Sa of the housing 211 and the output gear G4 of the power transmission unit 216 at the same position in the front-to-rear direction, or to simply arrange the small-diameter gear G12 of the driven gear G1 and the large-diameter gear G21 of the driven gear G2 at the same position in the front-to-rear direction.

[0219] Alternatively, an opening may be provided in the rear plate 211Sb of the housing 211, and the circuit board 212 and / or the third driven gear G3 may be placed inside the opening, so that the rear plate 211Sb and the circuit board 212 and / or the third driven gear G3 are positioned at the same position in the front-to-back direction.

[0220] In addition, the front-to-rear dimension of the actuator module 21 can be reduced by arranging at least two of the plate-shaped portion extending in a plane perpendicular to the front-to-rear direction within the housing 211, the plate-shaped rotating body whose rotation axis is in the front-to-rear direction (for example, a rotating flat plate that rotates together with a gear, pulley, or lock interlocking part), and the circuit board 212 extending in a plane perpendicular to the front-to-rear direction at the same position in the front-to-rear direction.

[0221] [Modifications of Each Process Executed by Controller 213] In the flowchart of FIG. 18 of the above embodiment, step S209 is executed after step S208, which stops driving of motor 215, to notify the user that the remaining battery level is low, but this is not limiting. Step S208 may be executed after step S209. Alternatively, at least one of steps S208 and S209 may be omitted. Furthermore, in step S206, the following formula (2) may be used instead of formula (1). In this case, the threshold value also conforms to formula (2). D=V Ｌ -V Ｎ ... (2)

[0222] In step S202 of FIG. 18 in the above embodiment, the no-load voltage value VＮ The value before the voltage is stepped down by the DC / DC converter 218 is measured at the measurement point MP1 by the first voltmeter VM1. However, the no-load voltage value V Ｎ Alternatively, the value after the voltage is stepped down by the DC / DC converter 218 may be measured at the measurement point MP2 by the second voltmeter VM2.

[0223] In the actuator module 21 of the above embodiment, the configuration that is the target of failure determination executed by the controller 213 may be changed as appropriate. In addition, the presence or absence of sensors and the like provided for failure determination may also be changed as appropriate.

[0224] In the actuator module 21 of the above embodiment, the procedure for determining a failure executed by the controller 213 is not limited to that shown in the flowcharts of Figures 19 and 20. The controller 213 may perform a failure determination by using the outputs of the sensor group 217, etc. in any manner.

[0225] When the sensor group 217 of the actuator module 21 in the above embodiment includes an ammeter connected between the battery BT and the DC / DC converter 218, the ammeter measures the current value corresponding to the voltage before it is stepped down by the DC / DC converter 218 as the drive current value of the motor 215. This value can be used instead of or in addition to the current value A measured by the ammeter AM in step S308 of the flowchart in Fig. 19 and steps S402 and S405 of the flowchart in Fig. 21 .

[0226] In the actuator module 21 of the above embodiment, the procedure for calibrating the unlocked and locked positions executed by the controller 213 can be changed as appropriate.

[0227] In the actuator module 21 of the above embodiment, the controller 213 determines whether the current value A is greater than or equal to the threshold value TH based on the rotation direction of the motor 215 (an example of the "drive mode of the drive unit") and the attachment information. Ａ When the output value of the potentiometer PM reaches the above value, it is determined whether the output value corresponds to the unlocked position or the locked position, but the present invention is not limited to this.

[0228] For example, if the lock system 100 is configured to be specialized for either a right-swing door or a left-swing door, the controller 213 determines whether the current value A exceeds the threshold value TH based on the rotation direction of the motor 215. Ａ It is possible to determine whether the output value of the potentiometer PM at this point corresponds to the unlocked position or the locked position.

[0229] Alternatively, the controller 213 determines whether the current value A is greater than or equal to the threshold value TH Ａ The output value of the potentiometer PM when the above condition is met (an example of "first information") may simply be identified as either the locked position or the unlocked position. In this case, the worker installing the lock system 100 on the door 1000 may refer to the identification result and identify whether the output value corresponds to the locked position or the unlocked position.

[0230] [Modifications regarding connections between controllers] In the lock system 100 of the above embodiment, the connection between the controller 213 of the actuator module 21 and the controller 51 of the main circuit board 50, the connection between the controller 213 of the actuator module 21 and the controller 222 of the communication module 22, and the connection between the controller 222 of the communication module 22 and the controller 51 of the main circuit board 50 are each made by wires. However, at least one of these connections may be wireless. Even in a configuration in which the controllers communicate with each other wirelessly, the number of communication ports required by the controllers can be reduced.

[0231] In the lock system 100 of the above embodiment, any one of the connection between the controller 213 and the controller 51 by the wiring W1, the connection between the controller 222 and the controller 51 by the wiring W2, and the connection between the controller 213 and the controller 51 by the wiring W3 may be omitted. In a mode in which the connection between the controller 213 and the controller 51 by the wiring W1 is omitted, the controller 213 and the controller 51 communicate via the controller 222. In this mode, the communication port P ２１３－２２２ is an interface for communicating with the controller 51 and is an example of a "communication interface."

[0232] In a mode in which the connection between the controller 222 and the controller 51 via the wiring W2 is omitted, the controller 222 and the controller 51 communicate with each other via the controller 213. In a mode in which the connection between the controller 213 and the controller 222 via the wiring W3 is omitted, the controller 213 and the controller 222 communicate with each other via the controller 51.

[0233] [Other Modifications of the Lock Unit 20] As in the case of the controller 213 described above, the components arranged inside the housing 211 in the actuator module 21 of the above embodiment may be arranged outside the housing 211. In this case, the actuator module 21 is made up of the housing 211, the components arranged inside the housing 211, and the components arranged outside the housing 211.

[0234] In the actuator module 21 of the above embodiment and each modified example, the controller 213, the motor driver 214, the motor 215, the power transmission unit 216, and the sensor group 217 are all housed in the housing 211, but this is not limited to this. The housing 211 may be configured to house at least a part of the motor 215 and / or the power transmission unit 216. Also, in the above embodiment, as shown in FIG. 4(b), the output gear G4 of the power transmission unit 216 is inserted through the opening OP of the housing 211. ２１１Ｓａ and is exposed to the outside. The input shaft S1 and output shaft S2 of the power transmission unit 216 are located outside the housing 211. In this specification and the present invention, the phrase "the housing houses a certain member" includes both an embodiment in which the entirety of a certain member is housed inside the housing and an embodiment in which a part of a certain member is located outside the housing.

[0235] The communication module 22 may be omitted from the lock system 100 of the above embodiment. In this case, the actuator module 21 may have the wireless communication interface 223 and / or the antenna group 224, and the main circuit board 50 may have the wireless communication interface 223 and / or the antenna group 224.

[0236] In the communication module 22 of the lock system 100 of the above embodiment, the circuit board 221 has four antenna mounting portions AA1 to AA4. However, the number of antenna mounting portions that the circuit board 221 has is arbitrary. Also, the circuit board 221 does not have to have any antenna mounting portions.

[0237] In the communication module 22 of the lock system 100 of the above embodiment, the antenna group 224 has four antennas AN1 to AN4 attached to four antenna attachment portions AA1 to AA4, respectively, but is not limited to this. The number of antennas included in the antenna group 224 is arbitrary, and may be as small as one.

[0238] In the communication module 22 of the lock system 100 of the above embodiment, if the number of antenna mounting portions is greater than the number of antennas, the antennas can be mounted on an appropriately selected antenna mounting portion. For example, a single antenna can be mounted on any one of the four antenna mounting portions AA1 to AA4 on the circuit board 222. In this case, the antenna mounting portion to mount the antenna is selected in consideration of the shape, material, etc. of the lock system 100 so that the antenna is positioned in the most suitable position for receiving radio waves from the surrounding area.

[0239] In the lock system 100 of the above embodiment, the actuator module 21 and the communication module 22 may be integrated into one unit. Specifically, for example, the circuit board 221 may be omitted, and the controller 222, the communication interface 223, the antenna mounting portions AA1 to AA4, and the DC / DC converter 225 may be provided on the circuit board 212 of the actuator module 21.

[0240] [Variations regarding the main circuit board 50] In the lock system 100 of the above embodiment, a wireless communication interface may be provided on the main circuit board 50 instead of or in addition to the wireless communication interface 223 of the communication module 22.

[0241] In this case, the main circuit board 50 may be provided with an antenna AN5 (FIG. 23) as an antenna for the wireless communication interface of the main circuit board 50. Alternatively, an antenna AN6 may be provided on the circuit board 222 of the communication module 22 in addition to the antenna group 224. In this case, the wireless communication interface of the main circuit board 50 can receive the signal received by the antenna AN6 via the wiring W2. Note that both the antenna AN5 and the antenna AN6 may be provided as antennas for the wireless communication interface of the main circuit board 50.

[0242] In a configuration in which the main circuit board 50 does not have a wireless communication interface, the antenna AN5 may be provided on the main circuit board 50. In this case, the antenna AN5 can be used as an antenna for the wireless communication interface 223 of the communication module 22. The wireless communication interface 223 can receive the signal received by the antenna AN5 via the wiring W2.

[0243] [Modifications of Cover 60] The cover 60 may be provided with a fingerprint reader, a display, a touch panel, a card reader, etc. instead of or in addition to the numeric keypad unit 63. In this case, the fingerprint reader, the display, the touch panel, the card reader, etc. are connected to the controller 51 of the main circuit board 50.

[0244] If the cover 60 has a fingerprint reader, the controller 51 may control the locking and unlocking based on the fingerprint read by the fingerprint reader. Specifically, for example, the controller 51 may compare the fingerprint read by the fingerprint reader with fingerprint data stored in a memory unit (not shown, mounted on the main circuit board 50 as an example) (i.e., perform fingerprint authentication), and if the fingerprints match, send an unlock command to the circuit board 213 of the actuator module 21. Drive control of the motor driver 214 based on fingerprint authentication is an example of "second drive control."

[0245] If the cover 60 has a display, the controller 51 may control the content displayed on the display. Specifically, for example, the controller 51 may display the remaining charge of the battery housed in the battery case 41 on the display. If the cover 60 has a touch panel, the controller 51 may accept user input (e.g., input of a personal identification number) via the touch panel. The controller 51 may then control locking / unlocking based on the authentication result of the input personal identification number. If the cover 60 has a card reader, the controller 51 may control locking / unlocking based on the card reading result and authentication result.

[0246] [Other Modifications] The lock system 100 of the above embodiment is a door body 1000M. ＩＮ and exterior surface S ＯＵＴ However, the present invention is not limited to this. The entire lock system 100 may be embedded inside the door main body 1000M.

[0247] In the above embodiment, the instruction device that instructs the lock system 100 to lock or unlock may be a card key that can be touched or scanned by a card reader provided on the cover 60 or the like.

[0248] In the above embodiment, the battery case 41 is disposed in the base 40, but this is not limited to this. The battery case 41 may be disposed in any position. Furthermore, the lock system 100 is not limited to being operated by a battery. The lock system 100 may be operated by receiving power from an external power source such as a commercial power source. The external power source may be a battery.

[0249] The lock system 100 of the above embodiment and modified examples is not limited to use in doors for buildings, but can be used to open and close locks on any structure.

[0250] As long as the features of the present invention are maintained, the present invention is not limited to the above-described embodiment, and other forms conceivable within the scope of the technical idea of ​​the present invention are also included within the scope of the present invention. The features described in the above-described embodiment and the features described in each of the above-described modifications can be used in any combination with each other.

[0251] 10 base; 20 lock unit; 21 actuator module; 211 housing; 212 circuit board; 213 controller; 214 motor driver; 215 motor; 216 power transmission section; 217 sensor group; 22 communication module; 221 circuit board; 222 controller; 223 wireless communication module; 224 antenna group; 30 cover; 40 base; 50 main circuit board; 51 controller; 60 cover; 100 lock system; 1000 door; W1, W2, W3 wiring

Claims

1. An actuator module for a locking system to be attached to a door of a building, comprising: a drive unit; a power transmission unit which transmits power output from the drive unit and outputs it as power for locking and unlocking a lock, the power transmission unit having a lock interlocking unit which moves to an unlocked position to set the lock in an unlocked state and moves to a locked position to set the lock in a locked state; an ammeter which measures the drive current of the drive unit; a position sensor which detects the position of the lock interlocking unit; a memory unit; and a controller, wherein the controller records in the memory unit the output of the position sensor when the measured value of the ammeter becomes equal to or greater than a threshold value as first information indicating the unlocked position or the locked position.

2. The actuator module according to claim 1, wherein the controller determines whether the first information indicates the unlocked position or the locked position based on the driving state of the driving unit.

3. An actuator module as described in claim 1 or 2, wherein the controller determines whether the first information indicates the unlocked position or the locked position based on the drive mode of the drive unit and installation information indicating the configuration of the object to which the lock system is to be installed.

4. The actuator module according to any one of claims 1 to 3, wherein the position sensor is a potentiometer.

5. The actuator module described in claim 4, wherein the power transmission unit has a first gear included in the lock interlocking unit and a second gear interlocked with the drive unit, the rotation axis of the first gear and the rotation axis of the second gear are coincident, and the first gear and the second gear are configured to be in either a connected state in which the second gear applies a rotational force to the first gear so that the second gear and the first gear rotate together, or a separated state in which the second gear rotates without rotating the first gear, depending on the positional relationship in the rotational direction between the first gear and the second gear, and a sensor gear connected to the potentiometer meshes with the first gear.

6. An actuator module as described in any one of claims 1 to 5, wherein the controller sets the lock interlocking unit to the unlocked position or the locked position by stopping the drive unit based on the output of the position sensor matching the first information recorded in the memory unit.

7. An actuator module as claimed in any one of claims 1 to 6, wherein the drive unit is configured to be powered by a battery, and the controller determines the remaining charge of the battery based on the difference between a no-load voltage value, which is the value of the output voltage of the battery when the drive unit is stopped, and a loaded voltage value, which is the value of the output voltage of the battery when the drive unit is operating.

8. An actuator module as described in any one of claims 1 to 7, wherein the drive unit is configured to be driven by power supplied from a battery, the actuator module further comprises a step-down converter which steps down the power supplied from the battery, and the controller compares the value of the output voltage of the battery with a threshold value, and if the value of the output voltage is greater than the threshold value, steps down the power supplied from the battery using the step-down converter and supplies it to the drive unit, and if the value of the output voltage is equal to or less than the threshold value, supplies the power supplied from the electric battery to the drive unit without steps down using the step-down converter.

9. An actuator module as claimed in any one of claims 1 to 8, further comprising a sensor unit that detects the state of the drive unit and / or the state of the power transmission unit, wherein the controller determines whether the actuator has a fault based on the output of the sensor unit.

10. An actuator module as described in claim 8, further comprising a sensor unit that detects the state of the drive unit and / or the state of the power transmission mechanism, and the controller determines a fault in the actuator based on at least one of the value of the output voltage before the voltage is stepped down by the step-down converter, the value of the output voltage after the voltage is stepped down by the step-down converter, and the output of the sensor unit.

11. A lock system for a door of a building, comprising an actuator module according to any one of claims 1 to 10.

12. A door for a building, comprising: a door body; a deadbolt provided in said door body; and a lock system according to claim 11 for moving said deadbolt.

13. A calibration method for an actuator module for a lock system attached to a door of a building, the actuator module comprising: a drive unit; a power transmission unit that transmits power output from the drive unit and outputs it as power for unlocking and locking a lock, the power transmission unit having a lock interlocking unit that moves to an unlocked position to set the lock in an unlocked state and moves to a locked position to set the lock in a locked state; an ammeter that measures the drive current of the drive unit; a position sensor that detects the position of the lock interlocking unit; and a memory unit, the method including recording in the memory unit an output of the position sensor when the measured value of the ammeter becomes equal to or greater than a threshold value as first information indicative of the unlocked position or the locked position.

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