JP2005314913A - Answerback unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an answerback unit which can be easily retrofitted, when the answerback function is retrofitted to an electric lock system with no answerback function. <P>SOLUTION: This answerback unit 10 as a retrofitted type is retrofitted by being connected midway through wiring 7 for connecting a controller 6 and a drive motor 9 together. The answerback unit 10 is unitized by making the same case house a diode bridge 20, a power supply circuit 21, an overvoltage protection circuit 22, a CPU 23, input circuits 28 and 29, a buzzer 30 and an output circuit 31. An electric current Ia (Ib) flows through the drive motor 9 when an electric lock is closed or opened, and the circuit 21 is put into the state of being started up by partially inputting the electric current via the diode bridge 20 and the circuit 22. When the circuit 21 is started up, the CPU 23, the buzzer 30, etc. are put into the state of being supplied with electric power, so that the answerback unit 10 can be operated. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an answerback apparatus that notifies at least one of locking and unlocking of a door.

  Conventionally, some buildings such as houses are equipped with an electric lock system that locks and unlocks an electric lock embedded in a door by transmitting a lock or unlock signal from an electronic key (remote control) by radio waves. is there. As this electric lock system, for example, Patent Document 1 discloses a system having an answer back function, that is, a technique for notifying completion of locking or unlocking of an electric lock with a horn and a hazard lamp.

In the literature 1, a lock signal that flows through a motor connection of a door lock motor, a lock status signal that flows when a status switch (lock switch) is turned on to the lock side, and an unlock signal that flows when the status switch is turned on to the unlock side. The determination circuit monitors the lock state based on the lock status signal. When the determination circuit determines that locking is not completed, the horn drive circuit sounds the horn, and when the determination circuit determines that locking is complete, the hazard lamp drive circuit lights the hazard lamp.
JP 2003-253933 (page 4-7, FIG. 1)

  If the technique of the literature 1 is used, it is possible to provide a residential electric lock system that uses a lock signal flowing through the motor connection of the door lock motor to notify the locking / unlocking of the electric lock by sound. In short, it is possible to replace the hazard lamp described in the same document 1 with a buzzer, sound a buzzer when the determination circuit determines that locking is complete, and notify the completion of locking / unlocking of the electric lock with the buzzer sound. It is.

  By the way, in the old electric lock system and the electric lock system for users who do not want to notify the completion of locking / unlocking of the electric lock with sound, there are models that do not have the answer back function. However, some users who use such an electric lock system desire a notification of locking / unlocking by sound, and there is a demand for retrofitting an answer back device. However, since the document 1 does not disclose any retrofit of the answerback device, no countermeasure can be taken from the technique of the document 1.

  As another problem, when a controller for controlling the electric lock is embedded in the door, it is necessary to make the controller thinner in accordance with that in order to reduce the thickness of the door. However, the controller may not be embedded in the door due to the space of the controller in the door.In this case, the controller is attached to the outer wall of the building, and the electric lock and controller are connected by wiring. It is necessary to take a connection method. However, when an answerback device is retrofitted to this structure, it is necessary to attach the answerback device close to the controller in order to take power, but the answerback device is located away from the door. Therefore, it is difficult to hear the sound generated by the answerback device.

  Therefore, when the controller is arranged at a position far from the door, it is necessary to attach an answerback device near the door and connect the answerback device and the controller with a long power supply wiring. Therefore, since the power supply wiring is used, an extra cost is required, and further, it is necessary to prepare a wiring space for passing the power supply wiring in the wall or door of the house, so that the controller is arranged at a position far from the door. However, there is a current situation that it is difficult to retrofit the answer back device as an actual problem.

  An object of the present invention is to provide an answerback device that can be easily attached when an electronic lock system having no answerback function is retrofitted.

  In order to solve the above-described problems, in the invention described in claim 1, when at least one of locking and unlocking of the door is performed by wireless communication using an electronic key, the door is driven by a drive motor of a drive source of the door lock. Answering device comprising an input circuit for inputting a current to be transmitted and a notification mechanism for notifying that locking or unlocking has been performed based on the current input by the input circuit, wherein the input circuit and the notification mechanism are the same The gist is that it is unitized by housing in the case.

  According to the present invention, since the answerback device is unitized, when this function is retrofitted to an electric lock system having no answerback function, it is only necessary to attach this device. Accordingly, it is not necessary to fall under a situation where a plurality of parts are attached when retrofitting the answerback function, and the answerback function can be easily retrofitted.

  In the invention according to claim 2, when at least one of locking and unlocking of the door is performed by wireless communication using an electronic key, an input circuit for inputting a current to be supplied to a drive motor of a drive source of the door lock; An answer back device comprising a notification mechanism for notifying that locking or unlocking has been performed based on the current input by the input circuit, and starting up based on the current passed through the drive motor to power the notification mechanism The gist of the present invention is that a power supply unit for supplying the power is provided.

  According to the present invention, since the power supply unit that is activated by the current flowing through the drive motor is provided, when the function is retrofitted to an electric lock system that does not have an answerback function, the main power supply at another installation location can be used. In order to take power, there is no need to connect the answerback device and the main power supply with power wiring. Therefore, it is possible to attach the answerback device without having to route the power supply wiring, and the answerback device can be easily retrofitted.

  In the invention according to claim 3, when at least one of locking and unlocking of the door is performed by wireless communication using an electronic key, an input circuit for inputting a current passed to a drive motor of a drive source of the door lock; An answer back device comprising a notifying mechanism for notifying that locking or unlocking has been performed based on the current input by the input circuit, and starting up based on the current flowing through the drive motor to supply power to the notifying mechanism. The gist is that a power supply unit is provided and the input circuit, the notification mechanism, and the power supply unit are housed in the same case.

  According to the present invention, since the answerback device is unitized, when this function is retrofitted to an electric lock system having no answerback function, it is only necessary to attach this device. Accordingly, it is not necessary to fall under a situation where a plurality of parts are attached when retrofitting the answerback function, and the answerback function can be easily retrofitted. In addition, since it has a power supply unit that is activated by the current flowing through the drive motor, when this function is retrofitted to an electric lock system that does not have an answerback function, the main power supply at another installation location is powered In addition, it is not necessary to connect the answerback device and the main power supply with the power supply wiring. For this reason, it is possible to attach the answerback device without having to route the power supply wiring, which further contributes to simplification when the answerback device is retrofitted.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the notification mechanism includes a notification unit capable of reporting in a predetermined format, and the current flowing through the drive motor. Taking in via the input circuit, judging means for judging which direction the current flows in the direction of locking or unlocking of the drive motor, and according to locking or unlocking based on the judgment result of the judging means The gist is provided with control means for causing the notification means to perform notification.

  According to this invention, in addition to the operation of the invention according to any one of claims 1 to 3, it is determined by the determining means whether the current flows in the direction of locking or unlocking the drive motor, The notification means performs notification according to each of locking and unlocking according to a command of the control means based on the determination result of the determination means. Therefore, it is possible to notify both locking and unlocking with one answerback device.

  In the invention according to claim 5, in the invention according to any one of claims 2 to 4, the power supply unit can operate even when the current does not flow to the drive motor. Thus, the gist is provided with a power storage circuit that inputs and stores the current that flows to the drive motor.

  According to this invention, in addition to the operation of the invention according to any one of claims 2 to 4, the answer-back device can be operated by the electric power of the storage circuit even when no current flows through the drive motor. Therefore, if the power storage circuit is mounted as in the present invention, it is possible to operate the answerback device even after the drive motor is stopped, so that the power supply stops during the notification and the notification stops in the middle. Troubles are less likely to occur, and the reliability of locking or unlocking notification is improved.

  According to the present invention, the answer back function can be easily attached to the electric lock system.

(First embodiment)
Hereinafter, a first embodiment of an answerback apparatus embodying the present invention will be described with reference to FIGS.

  FIG. 1 is a perspective view showing an outline of the electric lock system 1. The electric lock system 1 is a system that locks and unlocks the electric lock 4 embedded in the door 3 by remote operation of an electronic key (remote controller) 2. A controller 6 for operating the electric lock system 1 is embedded in the wall 5 a of the building 5, and the controller 6 and the electric lock 4 are connected by a wiring 7. The controller 6 controls the electric lock 4 based on the radio wave (locking signal or unlocking signal) transmitted from the electronic key 2, and when receiving the locking signal from the electronic key 2, locks the electric lock 4 and receives the unlocking signal. Then, the electric lock 4 is locked. The electric lock 4 corresponds to a door lock.

  A pair of current-carrying metal fittings 8a and 8b are respectively disposed on the door 3 and the wall portion 5a. The current-carrying metal fittings 8a and 8b are for passing the wiring 7 from the wall 5a to the door 3, and in this example, engraved metal fittings are used. The electric lock 4 includes a drive motor 9 serving as a drive source for dead bolts (not shown). In the electric lock 4, when the drive motor 9 rotates in one direction (for example, forward rotation) based on a command from the controller 6, the dead bolt jumps out of the door and the electric lock 4 is locked, and the drive motor 9 moves in the other direction. When the rotation (for example, reverse rotation) occurs, the dead bolt is drawn into the door and the electric lock 4 is unlocked.

  A retrofitting answer-back device 10 that performs notification according to locking / unlocking of the electric lock 4 is housed inside the energizing metal fitting 8b on the wall 5a side. The answerback apparatus 10 includes, for example, a resin case 10a, and various devices (parts) are built therein. The answerback device 10 notifies the fact in conjunction with the locking / unlocking of the electric lock 4, for example, when the electric lock 4 is locked, emits a locking sound (for example, a beep), and the electric locking 4 is unlocked. It is possible to generate an unlocking sound (for example, a beep or a beep).

  FIG. 3 is an electric circuit diagram showing an electrical configuration of the answerback apparatus 10. The controller 6 includes two switches 11 and 12, a positive contact of each switch 11 and 12 is connected to a residential power supply 15 through a resistor 13 and a diode 14, and a negative contact of each switch 11 and 12 is connected to GND. Has been. A resistor 16 and a capacitor 17 are connected between the two switches 11 and 12. The controller 6 includes a + side output terminal 18 a and a − side output terminal 18 b as output terminals of the device, the + side output terminal 18 a is connected to the switch 11, and the − side output terminal 18 b is connected to the switch 12.

  The positive terminal of the drive motor 9 is connected to the positive output terminal 18a of the controller 6 via a positive wiring 7a, and the negative terminal of the drive motor 9 is connected to the negative output terminal 18b of the controller 6 via a negative wiring 7b. -The terminal is connected. When the controller 6 receives the locking signal, on the condition that the electric lock 4 is unlocked, the controller 6 turns on the switch 11 and turns on the switch 12 as shown in FIG. Turn off. At this time, the current Ia shown in the direction of the solid line in FIG. 3 flows from the controller 6 to the drive motor 9, whereby the drive motor 9 rotates in the forward direction and the dead bolt pops out to the maximum extent, and the electric lock 4 is locked. It becomes a state.

  On the other hand, when the controller 6 receives the unlock signal, on the condition that the electric lock 4 is locked, the controller 6 turns off the switch 11 based on its own switch control as shown in FIG. 12 is turned on. At this time, the current Ib shown in the direction of the broken line arrow in FIG. 3 flows from the controller 6 to the drive motor 9, whereby the drive motor 9 reverses and the dead bolt is drawn into the door to the maximum, and the electric lock 4 is unlocked. Locked. Note that the currents Ia and Ib flow time is set to a time required for sliding the dead bolt, and is set to, for example, about 1 second in this example although it varies depending on the model of the electric lock 4.

  The answerback apparatus 10 includes a + side input terminal 19a and a − side input terminal 19b as input terminals of the apparatus, the + side input terminal 19a is connected in the middle of the + side wiring 7a, and the − side input terminal 19b is connected to the − side wiring. It is connected in the middle of 7b. Therefore, the answerback device 10 is connected in the middle of the wiring 7 that connects the controller 6 and the drive motor 9, and is housed in the current-carrying metal fitting 8 b on the wall 5 a side, and is connected to the drive motor 9. It will be in the state connected in parallel. The wiring 7 is composed of a + side wiring 7a and a − side wiring 7b.

  As shown in FIG. 3, the answerback device 10 includes a diode bridge 20 in which four diodes are connected in a bridge shape, a power supply circuit 21 that operates as a power supply for the device, and an overvoltage protection circuit that prevents overvoltage of the power supply circuit 21. 22 and a CPU 23 that performs main control of the apparatus. When the current Ia (Ib) flows from the controller 6 to the drive motor 9, a part of the current Ix (Iy) flows through the answerback device 10.

  The diode bridge 20 has an input side connected to the + side input terminal 19a and the − side input terminal 19b, and inputs a part of the current Ix (Iy) that flows when the drive motor 9 is driven. The diode bridge 20 rectifies the flowing current and outputs it to the overvoltage protection circuit 22. The overvoltage protection circuit 22 includes, for example, two resistors connected in series and a Zener diode that keeps the voltage to the power supply circuit 21 constant. The overvoltage protection circuit 22 prevents overvoltage of the power supply circuit 21 by voltage breakdown of the Zener diode.

  The power supply circuit 21 includes a power supply IC 24, two capacitors 25 and 26, and a polar electrolytic capacitor 27. The power supply IC 24 includes three terminals 24a to 24c, of which the terminal 24c is connected to the GND. One terminal of the capacitor 25 is connected to the terminal 24a of the power supply IC 24, and the other terminal is connected to GND. One terminal of the capacitor 26 is connected to the terminal 24b of the power supply IC 24, and the other terminal is connected to GND. The polar electrolytic capacitor 27 has a positive terminal connected to the terminal 24a of the power supply IC 24 and a negative terminal connected to GND.

  When the electric lock 4 is locked (or unlocked), a current Ia (Ib) flows from the controller 6 toward the drive motor 9, and a current Ix (Iy) that is a part of the current Ia (Ib) is The current flows into the answerback apparatus 10, and current flows into the power supply circuit 21 through the diode bridge 20 and the overvoltage protection circuit 22. As a result, the power supply circuit 21 starts up using this current as a power supply, and starts supplying power to the CPU 23 and the like. Accordingly, when a current Ia (Ib) flows toward the drive motor 9 and the power supply circuit 21 is activated based on this current, the CPU 23 and the like are in a state where power is supplied.

  The answerback apparatus 10 includes a first input circuit 28 and a second input circuit 29 that function as an I / F of the CPU 23, a buzzer 30 that outputs a notification sound when the electric lock 4 is locked / unlocked, and a command from the CPU 23. An output circuit 31 for converting the drive signal of the buzzer 30 and a reset circuit 32 for resetting the operation of the CPU 23 are provided. When the current Ia flows through the drive motor 9, the current flows into the first input circuit 28. When the current Ib flows through the drive motor 9, the current flows into the second input circuit 29.

  The first input circuit 28 is connected to the first terminal 23 a of the CPU 23 and is also connected to the power supply circuit 21 via the resistor 33. Here, when the electric lock 4 is locked by the electronic key 2 and the current Ia flows into the drive motor 9 and the current flows into the first input circuit 28, the internal transistor of the first input circuit 28 is turned on. . At this time, if the power supply from the power supply circuit 21 has already been started and the CPU 23 is in the state of inputting the H signal at the first terminal 23a, the current flowing to the CPU 23 side flows to the first input circuit 28 side. The CPU 23 switches to a state where the L signal is input at the first terminal 23a.

  The second input circuit 29 is connected to the second terminal 23 b of the CPU 23 and is also connected to the power supply circuit 21 via the resistor 34. Here, when the unlocking operation of the electric lock 4 by the electronic key 2 is performed and the current Ib flows into the drive motor 9 and the current flows into the second input circuit 29, the second input circuit 29 turns on the internal transistor. Become. At this time, if the power supply from the power supply circuit 21 has already started and the CPU 23 is in the state of inputting the H signal at the second terminal 23b, the current that has flowed to the CPU 23 side flows to the second input circuit 29 side. The CPU 23 switches to the state in which the L signal is input at the second terminal 23b.

  For example, the CPU 23 is an IC having an 8-pin terminal, and includes a power terminal 23c and a GND terminal 23d in addition to the first terminal 23a and the second terminal 23b. The CPU 23 has a power supply terminal 23c connected to the power supply circuit 21 and a GND terminal 23d connected to GND. When the power supply circuit 21 is activated, the CPU 23 inputs power from the power supply circuit 21 via the power supply terminal 23c, and based on the power supply, the answerback process (that is, the buzzer 30 corresponding to the locking / unlocking of the electric lock 4). Can be executed. A capacitor 35 is interposed between the power supply terminal 23c and the GND terminal 23d.

  The output circuit 31 is composed of, for example, a resistor and a transistor. The input side is connected to the third terminal 23 e of the CPU 23, and the output side is connected to the buzzer 30. The buzzer 30 uses the power supply circuit 21 as a driving power supply. When the transistor of the output circuit 31 is turned on, a current flows and a buzzer sound is generated. The power supply circuit 21 corresponds to a power supply unit. Further, the CPU 23 constitutes a notification mechanism, determination means, and control means. Further, the buzzer 30 constitutes a notification mechanism and a notification means.

  The reset circuit 32 includes, for example, a reset IC, a resistor, and a polar electric field capacitor, and is connected to the reset terminal 23 f of the CPU 23 and is also connected to the power supply circuit 21 via the resistor 36. The reset circuit 32 sequentially monitors the power supply of the power supply circuit 21 and determines whether or not the value of the power supply is stable. When the reset circuit 32 detects that the value of the power supplied from the power supply circuit 21 exceeds a predetermined level, the reset circuit 32 determines that the power supply circuit 21 is stable. First, the reset terminal of the CPU 23 is set for a certain time after the determination. The state where the L signal is output toward 23f is maintained.

  After a predetermined time has elapsed, the reset circuit 32 outputs an H signal (reset release signal) in order to release the reset of the CPU 23. When the CPU 23 receives the H signal from the reset circuit 32, the reset is released, and the CPU 23 starts up the answer-back process under the condition that the power is supplied from the power circuit 21.

  The CPU 23 executes the answer back process by the buzzer 30 as follows on the condition that the CPU 23 is activated. First, when the electric lock 4 is locked, a current Ia flows from the controller 6 toward the drive motor 9, and thereby a current flows into the first input circuit 28. Accordingly, the transistor of the first input circuit 28 is turned on, and the CPU 23 inputs the L signal via the first terminal 23a. On the other hand, since no current flows through the second input circuit 29, the internal transistor remains off, and the CPU 23 inputs an H signal via the second terminal 23b.

  Therefore, the CPU 23 inputs an L signal at the first terminal 23a and an H signal at the second terminal 23b. Based on this condition, the CPU 23 determines that the electric lock 4 is locked, and issues a command (predetermined time) to make a locking sound. 3 is output from the third terminal 23e to the output circuit 31 with the voltage level rising. In the output circuit 31, the internal transistor is turned on while the voltage level of the output signal Sa rises. Therefore, the buzzer 30 is in a state where a current flows while the transistor of the output circuit 31 is on, and emits a beep sound as a locking sound.

  On the other hand, when the electric lock 4 is unlocked, a current Ib flows from the controller 6 toward the drive motor 9, and thereby a current flows into the second input circuit 29. Accordingly, the transistor of the second input circuit 29 is turned on, and the CPU 23 inputs the L signal via the second terminal 23b. On the other hand, since no current flows through the first input circuit 28, the internal transistor remains off, and the CPU 23 inputs an H signal via the first terminal 23a.

  Therefore, the CPU 23 inputs an H signal at the first terminal 23a and an L signal at the second terminal 23b. Under this condition, the CPU 23 determines that the electric lock 4 has been unlocked, and issues a command to output an unlocking sound ( The output signal Sb shown in FIG. 1 having a plurality of (two in this example) rising edges during a predetermined time is output from the third terminal 23e to the output circuit 31. In the output circuit 31, the internal transistor is turned on when the voltage level of the output signal Sb rises. Therefore, at that timing, the buzzer 30 is in a state where a current flows, and a beep is generated as a locking sound.

Next, the operation of the electric lock system 1 will be described.
First, when the electronic key 2 is locked, the controller 6 receives a locking signal transmitted from the electronic key 2. If the electric lock 4 is unlocked, the controller 6 responds to the drive motor 9 with a current. Ia is allowed to flow for about 1 second. As a result, the drive motor 9 rotates forward, the deadlock pops out of the door, and the electric lock 4 enters the locked state. When the current Ia flows through the drive motor 9, a part of the current Ia (that is, the current Ix) flows into the answerback device 10. Accordingly, a current flows into the power supply circuit 21 via the diode bridge 20 and the overvoltage protection circuit 22, and the power supply circuit 21 starts to start using this as a power supply.

  When the power supply circuit 21 starts to start, the power supply circuit 21 is in a state of supplying power to the CPU 23, the buzzer 30 and the reset circuit 32. Here, as shown in the time chart of FIG. 4, power is supplied to the CPU 23, but the answer back process is not started until the reset is released by the reset circuit 32. When the power is supplied, the reset circuit 32 determines whether or not the value of the power supply is stable. When the reset circuit 32 detects that the value of the power supplied from the power supply circuit 21 exceeds a predetermined level, the power supply circuit 21 is stable. Judgment is made and an H signal is output to the reset terminal 23 f of the CPU 23.

  When the CPU 23 receives the H signal from the reset circuit 32, the CPU 23 starts answer-back processing and determines the voltage level of the signal input at the first terminal 23a and the second terminal 23b. When the electric lock 4 is locked, the CPU 23 inputs an L signal at the first terminal 23a and an H signal at the second terminal 23b. Based on this, the CPU 23 determines that the electric lock 4 is locked and outputs a locking sound. Output signal Sa is output from the third terminal 23e to the output circuit 31. As a result, the output circuit 31 is driven, and a beep sound is emitted from the buzzer 30 as a locking sound.

  On the other hand, when the electronic key 2 is unlocked, the controller 6 receives an unlocking signal transmitted from the electronic key 2. If the electric lock 4 is in the locked state, the controller 6 responds to the drive motor 9. The current Ib is supplied for about 1 second. As a result, the drive motor 9 reverses, the deadlock is drawn into the door, and the electric lock 4 is unlocked. When the current Ib flows through the drive motor 9, a part of the current Ib (that is, the current Iy) flows into the answerback device 10. Therefore, a current flows into the power supply circuit 21 via the diode bridge 20 and the overvoltage protection circuit 22, and the power supply circuit 21 starts to start using this as a power supply.

  When the power supply circuit 21 starts to be activated, the power supply circuit 21 is in a state of supplying power to the CPU 23, the buzzer 30, and the reset circuit 32 as in the case of locking. When the power is supplied, the reset circuit 32 determines whether or not the value of the power is stable. When the reset circuit 32 detects that the value of the power supplied from the power circuit 21 exceeds a predetermined level, the power circuit 21 is stabilized. H signal is output to the reset terminal 23 f of the CPU 23.

  When the CPU 23 receives the H signal from the reset circuit 32, the CPU 23 starts answer-back processing and determines the voltage level of the signal input at the first terminal 23a and the second terminal 23b. When the electric lock 4 is unlocked, as shown in the time chart of FIG. 5, the CPU 23 inputs the H signal at the first terminal 23a and the L signal at the second terminal 23b. The output signal Sb for outputting the unlocking sound is output to the output circuit 31 from the third terminal 23e. As a result, the output circuit 31 is driven, and the buzzer 30 makes a beep and a beep as an unlocking sound.

  In this example, the diode bridge 20, the power supply circuit 21, the overvoltage protection circuit 22, the CPU 23, the first input circuit 28, the second input circuit 29, the buzzer 30, and the output circuit 31 are accommodated in the same case 10a. The back device 10 is unitized. Therefore, when the answer back device 10 is retrofitted to the electric lock system 1 having no answer back function, it is not necessary to fall into a situation where a plurality of parts are attached, and the answer back device 10 can be easily retrofitted. It becomes possible.

  Further, the answerback apparatus 10 has a built-in power supply circuit 21 that operates using the current Ia (Ib) flowing through the drive motor 9 as a power source. By the way, when the answerback apparatus 10 does not have this type of power supply circuit 21, the controller 6 and the answerback apparatus 10 are connected by power supply wiring in order to take power from the controller 6 located away from the door 3. The connection work such as the handling of the power supply wiring is troublesome at the time of this work. However, if the answerback apparatus 10 includes the power supply circuit 21 as in this example, it is not necessary to perform such power supply wiring connection work, which further contributes to simplification of the retrofit of the answerback apparatus.

According to the configuration of the first embodiment, the following effects can be obtained.
(1) Since the answer back device 10 is unitized, when the answer back device 10 is retrofitted to the electric lock system 1 having no answer back function, it is not necessary to fall into a situation where a plurality of parts are attached. The answerback apparatus 10 can be easily retrofitted.

  (2) Since the answerback device 10 has the built-in power supply circuit 21, it is not necessary to connect the power supply wiring when the answerback device 10 is retrofitted, thereby further contributing to simplification of the retrofit of the answerback device.

  (3) When the electric lock 4 is locked, a buzzer sound (beep sound) corresponding to the locking is sounded, and when the electric lock 4 is unlocked, a buzzer sound (beep sound) corresponding to the unlocking is sounded. Since it did in this way, both one locking / unlocking can be alert | reported by one answer back apparatus 10. FIG.

(4) Since the overvoltage protection circuit 22 is mounted on the answerback apparatus 10, it is possible to prevent an overvoltage from being applied to the power supply circuit 21.
(5) If a Zener diode for overvoltage protection is provided in each of the first input circuit 28 and the second input circuit 29, it is possible to prevent the overvoltage from being applied to the first input circuit 28 and the second input circuit 29.

(Second Embodiment)
Next, a second embodiment of the answerback apparatus 10 will be described with reference to FIGS. Note that this example differs from the first embodiment only in that the power supply circuit 21 is provided with a power storage function, and therefore, the same parts as those in the first embodiment are denoted by the same reference numerals and detailed description thereof is omitted. Only the different parts will be described.

  FIG. 6 is an electric circuit diagram showing an electrical configuration of the answerback apparatus 10. The power supply circuit 21 includes a power storage circuit 37 that supplies power for a while even when the current Ia (Ib) does not flow to the drive motor 9. The electric storage circuit 37 includes a polar electrolytic capacitor 38 that can store electric power, and a diode 39 that suppresses current backflow from the polar electrolytic capacitor 38. Since the power supply circuit 21 includes the power storage circuit 37, the power supply time becomes longer than that in the first embodiment. The power supply circuit 21 and the storage circuit 37 constitute a power supply unit.

  The polar electrolytic capacitor 38 is a separate component from the power supply circuit 21, and the + side terminal is connected to the terminal 24 a of the power supply IC 24 via the diode 39. The polar electrolytic capacitor 38 is desirably set to a value larger than that of the polar electrolytic capacitor 27, and it is desirable to use an element that instantaneously charges and slowly discharges. The diode 39 has an anode connected to the terminal 24 a of the power supply IC 24 and a cathode connected to the capacitor 25 and the polar electrolytic capacitors 27 and 38.

  A door opening / closing sensor 40 that detects completion of opening / closing of the door 3 is connected to the fourth terminal 23 g of the CPU 23 via a third input circuit 41. For example, the door opening / closing sensor 40 outputs an H signal (door opening / closing signal) when the door 3 is empty, and outputs an L signal (door opening / closing signal) when the door 3 is completely closed. The CPU 23 determines that the door 3 is open when the H signal is input from the door opening / closing sensor 40, and determines that the door 3 is closed when the L signal is input from the door opening / closing sensor 40.

  Here, the electric lock 4 is configured not to operate unless the door 3 is completely closed. That is, the CPU 23 locks the electric lock 4 on condition that the L signal is input from the door opening / closing sensor 40 (that is, the door 3 is completely closed) when the locking operation is performed with the electronic key 2. To start. On the other hand, even when the unlocking operation is performed with the electronic key 2, the CPU 23 starts the unlocking operation of the electric lock 4 on condition that the L signal is input from the door opening / closing sensor 40.

  When the electronic key 2 is operated, current Ia (Ib) flows through the drive motor 9 on the condition that the door 3 is closed, and the electric lock 4 is locked or unlocked. At this time, a part of the current Ia (Ib) flowing through the drive motor 9 (that is, the current Ix (Iy)) flows into the answerback device 10, so that the current flows through the diode bridge 20 and the overvoltage protection circuit 22 to the power supply circuit 21. The power supply circuit 21 is activated using this as a power source. Accordingly, the power is supplied to the CPU 23, the buzzer 30, and the reset circuit 32, and the CPU 23 is activated in response to the input of the H signal from the reset circuit 32, and the answer back process is performed. While the current Ia (Ib) flows through the drive motor 9, electric power is stored in the polar electrolytic capacitor 38 of the storage circuit 37.

  By the way, the time for the controller 6 to flow the current Ia (Ib) is set to about 1 second. Therefore, in the power supply circuit that operates only when the current Ia (Ib) flows, the operation is stopped when the current Ia stops flowing. Stops and does not supply power. Here, it is impossible to deny the possibility that the drive motor 9 stops during the locking or unlocking notification and the power supply stops and the notification stops in the middle, and there is a demand to prevent such a problem as reliably as possible. Therefore, since the power storage circuit 37 is built in this example, even if the current Ia (Ib) does not flow to the drive motor 9, the power supply circuit 21 can be operated for a while, and the CPU 23 can reliably execute the notification by the buzzer 30. become.

  Therefore, when the electric lock 4 is locked as shown in the time chart of FIG. 7, the CPU 23 inputs the L signal at the first terminal 23a and the H signal at the second terminal 23b, and the door 3 is closed. For example, the L signal is input at the fourth terminal 23g. Therefore, the CPU 23 determines that the electric lock 4 is locked with the door 3 completely closed, and outputs an output signal Sa for outputting a locking sound from the third terminal 23 e to the output circuit 31. As a result, the output circuit 31 is driven, and after the door 3 is completely closed, a beep sound is emitted from the buzzer 30 as a locking sound.

  On the other hand, when the electric lock 4 is unlocked as shown in the time chart of FIG. 8, the CPU 23 inputs an H signal at the first terminal 23a and an L signal at the second terminal 23b, and the door 3 is closed. If there is, the L signal is input at the fourth terminal 23g. Therefore, the CPU 23 breaks when the electric lock 4 is unlocked in a state where the door 3 is completely closed, and outputs an output signal Sb for outputting an unlocking sound to the output circuit 31 from the third terminal 23e. As a result, the output circuit 31 is driven, and a beep is generated as a locking sound from the buzzer 30 in a state where the door 3 is completely closed. 7 and 8 are waveforms using both the current flowing through the drive motor 9 and the current stored in the power storage circuit 37 as power supply sources.

According to the structure of 2nd Embodiment, in addition to the effect as described in (1)-(5) of 1st Embodiment, the effect as described below can be acquired.
(6) Since the power storage circuit 37 is provided in the power supply circuit 21, the power supply circuit 21 can supply power even when the current Ia (Ib) does not flow to the drive motor 9. Therefore, even if the locking / unlocking of the electric lock 4 is completed and the drive motor 9 is stopped, the subsequent power supply is secured, so that the locking or unlocking notification by the buzzer 30 is stopped halfway. It becomes difficult to occur.

In addition, each embodiment is not limited to the said structure, You may change to the following aspects.
In the first and second embodiments, the answer back apparatus 10 is not limited to performing both locking notification and unlocking notification with a single device, and may be configured to perform only one notification. In this case, the structure of the answer back apparatus 10 may be simple.

  -In 1st and 2nd embodiment, the alerting | reporting format of locking and unlocking is not limited to the auditory alerting | reporting by the buzzer 30. FIG. For example, an LED may be attached instead of the buzzer 30 and visual notification by light may be used. Further, the buzzer 30 and the LED may be attached in parallel to notify with both sound and light.

  In the first and second embodiments, the controller 6 is not limited to the relay type configuration including the switches 11 and 12, but can be configured to allow a current to flow to the drive motor 9 according to the locking / unlocking of the electric lock 4. If so, the configuration is not particularly limited.

In the first and second embodiments, the communication format of the electronic key 2 is not particularly limited as long as it is wireless communication such as radio waves or infrared rays.
-In 1st and 2nd embodiment, the answer back apparatus 10 may be used not only for the door of the building 5, but for other objects, such as a car, for example.

  In the first and second embodiments, the answer back apparatus 10 is not limited to having both the unitized configuration and the configuration in which the power supply circuit 21 is built in, and it is only necessary to have one configuration.

  -In 2nd Embodiment, when the electrical storage circuit 37 is incorporated in the power supply circuit 21, after the drive motor 9 stops, the CPU 23 counts time by the timer using the electrical storage circuit 37 as a power source, and is locked when the timer expires. Alternatively, unlocking may be notified.

Next, a technical idea that can be grasped from the above embodiment and other examples will be described below.
(1) In Claim 2 or 3, a rectifier circuit that rectifies and outputs the current flowing through the drive motor is provided, and the power supply unit is activated based on the rectified current to supply power to the notification mechanism.

(2) In Claim 2 or 3, the overvoltage protection circuit which suppresses the overvoltage of the said power supply unit was provided.
(3) In claim 1 and the technical ideas (1) and (2), at least one of the rectifier circuit and the overvoltage protection circuit is accommodated in the case.

  (4) Second determination means that operates based on the electric power of the power storage circuit and determines whether or not the door is locked or unlocked based on a detection signal output from a detection means that detects the open / closed state of the door. And a second control unit that operates by the electric power of the power storage circuit and causes the notification unit to perform notification according to the completion of locking or unlocking based on the determination result of the second determination unit.

  (5) In any one of Claims 1-5, the said alerting | reporting means alert | reports in at least any one of auditory and visual.

The perspective view which shows the outline | summary of the electric lock system in 1st Embodiment. (A), (b) is explanatory drawing which shows the relay state of a controller. The electric circuit diagram which shows the electric constitution of an answerback apparatus. The time chart of the various signals input into CPU at the time of an electric lock locking. The time chart of the various signals input into CPU at the time of an electric lock unlocking. The electric circuit diagram which shows the electric constitution of the answer back apparatus in 2nd Embodiment. The time chart of the various signals input into CPU at the time of an electric lock locking. The time chart of the various signals input into CPU at the time of an electric lock unlocking.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 2 ... Electronic key, 3 ... Door, 4 ... Electric lock as door lock, 9 ... Drive motor, 10 ... Answer-back apparatus, 10a ... Case, 21 ... Power supply circuit which comprises a power supply unit, 23 ... Notification mechanism, Judgment means And a CPU constituting the control means, 28, 29 ... an input circuit, 30 ... a buzzer constituting the notification mechanism and the notification means, 37 ... a storage circuit constituting a power supply unit, Ia, Ib ... current.

Claims (5)

When at least one of locking and unlocking of the door is performed by wireless communication using an electronic key, an input circuit for inputting a current to be passed to a drive motor of a drive source of the door lock, and based on the current input by the input circuit In the answer back apparatus provided with a notification mechanism for notifying that locking or unlocking has been performed,
An answerback apparatus characterized in that the input circuit and the notification mechanism are accommodated in the same case as a unit. When at least one of locking and unlocking of the door is performed by wireless communication using an electronic key, an input circuit for inputting a current to be passed to a drive motor of a drive source of the door lock, and a current input by the input circuit In the answer back apparatus provided with a notification mechanism for notifying that locking or unlocking has been performed,
An answer-back apparatus comprising: a power supply unit that is activated based on the current passed through the drive motor and supplies power to the notification mechanism. When at least one of locking and unlocking of the door is performed by wireless communication using an electronic key, an input circuit for inputting a current to be passed to a drive motor of a drive source of the door lock, and a current input by the input circuit In the answer back apparatus provided with a notification mechanism for notifying that locking or unlocking has been performed,
A power supply unit that is activated based on the current flowing through the drive motor and supplies power to the notification mechanism is provided, and the input circuit, the notification mechanism, and the power supply unit are housed in the same case to form a unit. Answer back device to do.   The notification mechanism takes in notification means capable of reporting in a predetermined format and the current flowing through the drive motor via the input circuit, and the current flows in either direction of locking or unlocking of the drive motor. The control means which makes the said notification means perform the alerting | reporting according to locking or unlocking based on the judgment result of the said judgment means based on the judgment result of the said judging means is provided among Claims 1-3 characterized by the above-mentioned. The answer back apparatus as described in any one of Claims.   The power supply unit includes a power storage circuit that inputs and stores the current that is passed to the drive motor so that the power supply unit can operate even when the current stops flowing to the drive motor. The answer back apparatus as described in any one of Claims 2-4 to do.

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