JP4936911B2 - Electric lock device - Google Patents

Description

  The present invention relates to an electric lock device that is installed in, for example, a hotel guest room, a house entrance, an office entrance, etc., and uses a battery as a power source, and in particular, accurately displays the time of battery replacement and is used without wasting the remaining battery level. The present invention relates to an electric lock device that can be used.

Conventionally, for example, a door of a commercial building, a public facility, or a general house has been provided with an electric lock system having a high crime prevention property in order to avoid intrusion of a suspicious person. In this type of electric lock system, for example, a driving means such as a motor or a solenoid is driven by a specific locking / unlocking signal to electrically advance and retract the dead bolt to perform locking / unlocking before locking. However, when installing an electric lock, wiring work is required between a commercial power supply that supplies power to the electric lock and a power supply unit such as an electric lock control panel and the electric lock, so installation work is complicated. .
Therefore, an electric lock device using a battery as a power source has been proposed in order to eliminate such wiring work during installation. As an electric lock device using this type of battery as a power source, for example, one disclosed in Patent Document 1 below is known.

  As shown in FIG. 3, the electric lock device disclosed in Patent Document 1 receives an electric lock 50 that locks and unlocks a door on an object, and an aerial propagation signal transmitted from a portable transmitter 51. A circuit 52; a control circuit 53 that drives the electric lock 50 when a received signal received by the receiving circuit 52 matches a preset specific code; and a human sensor 56 that detects a person 55 using the battery 54 as a power source. The human sensor 56 includes power supply control means for supplying power from the battery 54 to the receiving circuit 52 and the control circuit 53 when the person 55 is detected.

By the way, in recent years, a liquid crystal having a memory property such as a ferroelectric liquid crystal, a cholesteric liquid crystal, or a chiral nematic liquid crystal is known. This memory-type liquid crystal has bistability (bi-stable) that is stable in either a light-transmitting state or a non-light-transmitting state, and maintains a specific state without applying a voltage. (Memory characteristics). When this memory-type liquid crystal is used in a display device, voltage is applied only for the time required to switch the structure of the liquid crystal from one state to another. It is possible to control so as to keep the display state. Therefore, by using this characteristic, the scanning electrode is driven only in a portion where the display needs to be changed, and the scanning electrode is not driven in a portion where the display does not need to be changed. Power saving can be achieved as compared with the conventionally known liquid crystal such as STN type and TFT type.
JP 9-296638 A

  By the way, not only the electric lock device of Patent Document 1 shown in FIG. 3 described above but also a conventional electric lock device of this type uses a battery as a power source. Is used to notify the remaining battery power.

The specific example of the battery remaining amount notification in the conventional card type electric lock is shown below. For locking / unlocking a lock, a card in which data necessary for locking / unlocking the lock (information for identifying a user: password information, etc.) is stored in advance is used.
(1) When the remaining battery level is full (full) “Determine card operation (operation to read data)” → “Unlock / Unlock” → “End”
(2) When the remaining battery level is medium (middle) “Predetermined operation of the card (operation to read data)” → “Alarm is generated to indicate that the remaining battery level is middle” → “Lock” `` Lock / Unlock '' → `` End ''
(3) When the battery level is very low (near-end) “Predetermined card operation (operation to read data)” → “Alarm is generated to indicate that the battery level is near-end” → “End”
(4) When there is no remaining battery power (End) “Card predetermined operation (operation to read data)” → “End (no reaction)”

  As described above, in the conventional electric lock device, when the remaining battery level is in the middle or near end state, an alarm is generated to notify the user of the remaining battery level. However, in this type of electric lock device, the alarm generation depends on the remaining amount of the battery as the power source. For this reason, when the remaining battery level is completely exhausted (in the above example (4) when there is no remaining battery level (end)), a warning indicating the state of the remaining battery level is not notified. Therefore, it is difficult for the user to determine whether the cause of the unlocking / unlocking is the failure of the device itself or the battery running out, and this countermeasure takes time.

  In addition, when a warning is issued due to the occurrence of an alarm in a state where the remaining battery level is left to some extent (when the remaining battery level in (2) in the above example is middle (middle)), the battery capacity may still remain depending on the user. Nevertheless, it may be determined that there is no battery capacity and the battery is replaced before the battery capacity is used up. For this reason, there was a problem that the battery could not be used to the limit, leading to wasted energy. Furthermore, since the battery is urged to be replaced by the occurrence of an alarm, for example, in the case of a deaf user or an elderly person, it may not be accurately heard due to the influence of the surrounding environment (for example, noise on the road or construction site). There was also a problem that the replacement time could not be determined accurately.

  Accordingly, the present invention has been made in view of the above problems, and an electric lock capable of notifying the time for battery replacement accurately and maximizing the battery capacity without wasting the remaining battery capacity. The object is to provide an apparatus.

In order to achieve the above-described object, the electric lock device according to claim 1 includes a power supply unit that uses a battery as a driving power source, and determines the validity of the locking / unlocking information read from the locking / unlocking card. In the electric lock device that performs locking / unlocking control based on
A display unit having a memory property capable of maintaining a display state even when power supply from the power supply unit is cut off;
A remaining battery level detection unit for detecting the remaining battery level;
When the battery remaining amount value detected by the battery remaining amount detecting unit is equal to or less than a preset threshold value corresponding to the minimum value that needs to be replaced, the display unit displays the battery. And a control unit that rewrites the prompting contents and controls display.

The electric lock device according to claim 2, further comprising a sounding unit for generating an alarm in the electric lock device according to claim 1,
The control unit drives and controls the ringing unit to generate the alarm together with display control of the display unit when a battery remaining amount value detected by the battery remaining amount detection unit becomes equal to or less than the threshold value. Features.

  According to the present invention, when the battery capacity becomes the minimum value or less without depending on the battery capacity, the display contents are retained even if the supply of drive power from the battery to each unit is cut off, including the occurrence of an alarm. The battery replacement notification is displayed on the display section that prompts you to replace the battery, so there is no waste of battery energy and it is easy to determine whether the battery is dead or the device is faulty even when the battery capacity is completely exhausted. An electric lock device can be provided.

  Hereinafter, the best mode of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a schematic block diagram for explaining the configuration of the electric lock device according to the present invention, and FIG. 2A is a diagram for explaining the operation when the battery capacity of the electric lock device according to the present invention is full or middle. FIG. 2B is an explanatory diagram for explaining the operation when the battery capacity of the electric lock device according to the present invention is near-end, and FIG. 2C is the end of the battery capacity of the electric lock device according to the present invention. It is explanatory drawing for demonstrating the operation | movement at the time.

  Hereinafter, the configuration of the electric lock device of this example will be described in detail with reference to FIG. As shown in FIG. 1, the electric lock device 1 includes an information reading unit 10, a power supply unit 11, a remaining battery level detection unit 12, a display unit 13, a ringing unit 14, a control unit 15, and an electric lock 16. Is done.

  The information reading unit 10 is, for example, a wireless key such as a remote controller, an information reader for reading locking / unlocking data transmitted from a mobile phone, a magnetic card, an IC card, a non-contact type IC chip, or an RFID tag (Radio Frequency Identification Tag). Lock data based on the user's instructions for locking / unlocking operations (necessary for locking / unlocking locks), such as card readers that read locking / unlocking data from various card-like storage media such as contactless IC cards Information) and is provided at a predetermined location on a door or a wall near the door.

  The power supply unit 11 is configured by a power supply unit to which a battery 11a such as a button battery or a dry battery can be attached and detached, and is provided at a predetermined position of the door or in the vicinity of the door. The power supply unit 11 supplies drive power necessary for each unit from the battery 11 a under the control of the control unit 15.

  The battery remaining amount detection unit 12 is configured by, for example, a battery remaining amount detection IC, and detects the remaining amount of the battery 11a attached to the power supply unit 11, and outputs a battery remaining amount signal based on this detection to the control unit 15. ing. As a battery remaining amount detection IC, for example, a battery remaining amount detection IC BQ2010 of Texas Instruments Inc. is known.

  The display unit 13 is configured by a liquid crystal display element (such as a ferroelectric liquid crystal, a cholesteric liquid crystal, or a chiral nematic liquid crystal) having a memory property that can maintain an image display without external energy except when the display image is rewritten. This liquid crystal display principle has bistable properties (bistability) that are stable both in the light-transmitting state and the non-light-transmitting state, and in a specific state without applying a drive power supply (voltage) It has the nature to keep it. Under the control of the control unit 15, the display unit 13 rewrites the display content by applying the driving power (voltage) from the battery 11 a of the power supply unit 11 only when the display content is rewritten, and the power supply is cut off after the display content is rewritten. However, the rewritten display contents are displayed and held. Particularly in this example, when the display control signal for displaying the display content for prompting battery replacement on the display unit 13 is input from the control unit 15 as the battery replacement notification, the current display content is displayed for prompting the battery replacement. The display contents are retained even after the power supply is cut off.

  The sounding unit 14 is configured by a sounding device such as a buzzer. The ringing unit 14 rings when a ringing command signal is input from the control unit 15 to notify the user that the capacity of the battery 11a attached to the power supply unit 11 is exhausted (battery replacement notification).

  The control unit 15 compares the locking / unlocking data from the information reading unit 10 with the authentication locking / unlocking data stored in advance to determine its validity, and only when the authentication is successful, the electric lock 16 at that time The lock is locked and unlocked according to the monitor information indicating the state (locking / unlocking state of the lock and the open / closed state of the door). For example, the locking / unlocking data from the information reading unit 10 is normally authenticated, and if it is locked / closed at that time, the electric lock 16 is unlocked by a drive control signal. On the other hand, the locking / unlocking data from the information reading unit 10 is normally authenticated, and at that time, if it is unlocked / closed, the electric lock 16 is controlled to be locked by the drive control signal.

  In addition, the control unit 15 controls the power supply from the power supply unit 11 to the display unit 13, the ringing unit 14, and the electric lock 16, and a status signal (for example, a lock signal) that is input as monitor information at the time of inputting a lock / unlock operation instruction. (Locking / unlocking state signal and door opening / closing state signal) are determined.

  Further, as shown in FIG. 1, the control unit 15 is configured to perform battery replacement notification control according to the remaining amount of the battery 11 a attached to the power supply unit 11, as shown in FIG. 1, a storage unit 15 a, a determination unit 15 b, a battery Replacement notification control means 15c is provided.

  The storage unit 15a is configured by, for example, a rewritable semiconductor memory such as ROM or RAM, an HDD, or the like, and stores a threshold value corresponding to a minimum value that requires replacement of the battery 11a attached to the power supply unit 11. In this example, a threshold for determining a state for determining the remaining state of the battery 11a and a threshold for determining a battery replacement for determining whether or not the battery 11a is replaced are used as thresholds.

  To explain further, there are four state determination thresholds: a full state with the maximum remaining battery level, a middle state with a medium remaining battery level, a near-end state with a very low battery level, and an end state with no remaining battery level. In order to determine the remaining amount of the battery 11a, a first threshold value for distinguishing between the full state and the middle state, a second threshold value for distinguishing the middle state and the near end state, and a third threshold value for distinguishing the near end state and the end state are used. Become.

  The threshold value for battery replacement determination is set to the minimum value that requires replacement of the battery 11a. Specifically, a value slightly larger than the capacity at which the remaining amount of the battery 11a is in the near-end state and the alarm generation of the ringing unit 14 and the display prompting the battery replacement on the display unit 13 can be performed at least once is set as the minimum value. Is preferred.

  Each of the threshold values described above depends on a combination of the type and standard of the battery 11a to be used (for example, a dry battery, a button battery, an alkaline battery, a manganese battery, AA type, AA type, etc.), a configuration of the electric lock device 1, and the like. Therefore, the optimum value obtained in advance by experiments or the like is stored in the storage means 15a.

  The storage unit 15a also includes authentication locking / unlocking data for determining whether the locking / unlocking data acquired by the information reading unit 10 is legitimate information, various display data displayed on the display unit 13, and a monitor. Various data necessary for the lock / unlock control of the electric lock 16 such as information signals (door open / close state signal and lock / unlock state signal) can also be stored.

  The determining unit 15b includes a state determining unit 15ba and a battery replacement presence / absence determining unit 15bb. The state determination unit 15ba compares the remaining battery level value based on the remaining battery level signal from the remaining battery level detection unit 12 with the state determination threshold value stored in the storage unit 15a, and the remaining state of the battery 11a is in the full state. The middle state, the near end state, and the end state are determined, and the determination result is output to the battery replacement presence / absence determining unit 15bb. Further, the contents of determination of the remaining state of the battery 11a will be described. When the remaining battery level value by the remaining battery level signal from the remaining battery level detection unit 12 is equal to or greater than the first threshold value, the battery 11a is determined to be full. Further, when the battery remaining value is not more than the first threshold and not less than the second threshold, the battery 11a is determined to be in the middle state. Further, when the remaining battery level is not more than the second threshold and not less than the third threshold, the battery 11a is determined to be in the near-end state. Moreover, when the said battery remaining value is below a 3rd threshold value, it determines with the battery 11a being an end state. These determination results are output to the battery replacement presence / absence determination means 15bb.

  The battery replacement presence / absence determination unit 15bb recognizes the remaining amount of the battery 11a based on the determination result from the state determination unit 15ba. When the battery 11a is in the near-end state, the battery remaining amount signal from the battery remaining amount detection unit 12 is recognized. Is compared with the battery replacement determination threshold value stored in the storage means 15a to determine whether or not the battery 11a is replaced, and the determination result is output to the battery replacement notification control means 15c. More specifically, the battery replacement presence / absence determination unit 15bb is in a state where the battery 11a is recognized as a near-end state based on the determination result from the state determination unit 15ba, and the remaining battery level value is equal to or less than the battery replacement determination threshold value. It is determined that the battery 11a needs to be replaced. When the remaining battery value is equal to or greater than the battery replacement determination threshold, it is determined that the battery 11a needs not be replaced. These determination results are output to the battery replacement notification control means 15c.

  The battery replacement notification control means 15c determines whether the battery 11a needs to be replaced from the battery replacement presence / absence determining means 15bb (the battery remaining value is near-end and below the threshold for battery replacement determination and the battery 11a needs to be replaced. In order to notify the user that the capacity of the battery 11a is low when a determination result indicating that the battery 11a is low is input, a display control signal for rewriting and displaying the display content for prompting battery replacement is displayed. While outputting to the display part 13, a ringing command signal is output to the ringing part 14.

  The electric lock 16 is composed of a drive device such as a motor or a solenoid and a lock, for example, and is driven by energization by a drive control signal from the control unit 15 to drive or lock the lock, and into the locking hole of the door frame. On the other hand, the lock is locked and unlocked by protruding the dead bolt (when locking) or retracting (when unlocking). In addition, the electric lock 16 constantly outputs a status signal indicating the unlocked / unlocked state of the lock and the open / closed state of the door to the control unit 15 as monitor information.

  Next, the operation of the electric lock device 1 will be described with reference to FIGS. Here, the electric lock device 1 is a card-type electric lock disposed at the entrance of a general house that performs locking / unlocking using a locking / unlocking card in which data necessary for locking / unlocking is stored in advance. The operation will be described for each remaining amount state. Also, in the following explanation, the case where the battery capacity is maximum is “full state”, the case where the power supply capacity is medium is “middle state”, the case where the battery capacity is extremely low “near end state”, and the case where there is no battery capacity. “End state”.

  First, an operation when the capacity of the battery 11a attached to the power supply unit 11 of the electric lock device 1 is shifted from the full state or the full state to the middle state during the unlocking operation will be described with reference to FIG.

  When a resident operates a predetermined locking / unlocking card to unlock the electric lock 16 of the electric locking device 1 installed at the entrance of the home, the information reading unit 10 reads the locking / unlocking data from the locking / unlocking card, and the control unit 15 determines the validity of the locking / unlocking data. At the same time, the determination unit 15 compares the battery remaining amount value detected by the battery remaining amount detection unit 12 with the threshold values (state determination threshold value, battery replacement determination threshold value) stored in the storage unit 15a. It is determined whether or not the remaining amount of 11a is the minimum value. Here, the determination unit 15 needs to replace the battery 11a if the remaining battery level is not less than the first threshold value (full state) or the first threshold value to the second threshold value (middle state) and not less than the battery replacement determination threshold value. As shown in FIG. 2 (a), the display unit 13 is not prompted to replace the battery, and the ringing unit 14 is not notified of battery replacement. And the control part 15 will carry out unlock control of the electric lock 16 in a locked and closed state, if the locking / unlocking data which the information reading part 10 read are normally authenticated.

  Next, an operation when the capacity of the battery 11a attached to the power supply unit 11 of the electric lock device 1 is shifted from the middle state to the near end state during the unlocking operation will be described with reference to FIG.

  When a resident operates a predetermined locking / unlocking card to unlock the electric lock 16 of the electric locking device 1 installed at the entrance of the home, the information reading unit 10 reads the locking / unlocking data from the locking / unlocking card, and the control unit 15 determines the validity of the locking / unlocking data. At the same time, the determination unit 15 compares the battery remaining amount value detected by the battery remaining amount detection unit 12 with the threshold values (state determination threshold value, battery replacement determination threshold value) stored in the storage unit 15a. It is determined whether or not the remaining amount of 11a is the minimum value. Here, the capacity of the battery 11a shifts from the middle state to the near-end state, and the remaining battery level detected by the remaining battery level detection unit 12 is below the threshold value for battery replacement determination in the second to third thresholds (near-end state). Then, the determination means 15 determines that the remaining amount of the battery 11a is less than the minimum value and that the battery 11a needs to be replaced. For example, as shown in FIG. Is displayed on the display unit 13, and an alarm such as “Peep, Peep, Peep” or the like is generated by ringing from the ringing unit 14 to notify battery replacement.

  Next, an operation when the capacity of the battery attached to the power supply unit 11 of the electric lock device 1 is shifted from the near end state to the end state during the unlocking operation will be described with reference to FIG.

  In this case, the content that prompts the user to replace the battery on the display unit 13 when the remaining amount of the battery 11a is in the near-end state is displayed. In the state where the remaining amount of the battery 11a has completely shifted from the near end state to the end state, the power supply from the power supply unit 11 is cut off, and the information reading unit 10 reads the locking / unlocking data from the locking / unlocking card. In addition, the battery remaining value of the battery 11a and each threshold (state determination threshold, battery replacement determination threshold) are compared and determined, and further, no alarm is generated due to the ringing unit 14 ringing. However, the display content that prompts the user to replace the battery on the display unit 13 when the remaining amount of the battery 11a is in the near end state (for example, the display content of “Replace battery”) is as shown in FIG. In addition, it is held and displayed in a constantly notified state due to the bi-stable property that is a characteristic of the display unit 13. Thus, the user can recognize that the battery is exhausted by looking at the display on the display unit 13 even when the apparatus does not operate.

  As described above, according to the electric lock device 1 described above, when the lock and unlocking of the lock is performed, when the current remaining amount of the battery 11a falls below the minimum value that needs to be replaced, the battery replacement notification is bistable. A display urging the battery replacement by the display unit 13 having a characteristic and an alarm by the ringing unit 14 are performed. Accordingly, the battery can be utilized to the minimum without wasting the capacity of the battery 11a.

  Even when the capacity of the battery 11a is completely exhausted (end state), a display prompting the user to replace the battery is already made on the display unit 13 when the remaining amount of the battery 11a becomes equal to or less than the battery replacement determination threshold. Even if there is no power supply, the display content is retained. As a result, even when the battery 11a is completely depleted, the user can determine at a glance that the battery has run out by looking at the display content on the display unit, and can determine whether the device is out of service or out of battery, which is a wasteful investigation. You can save time.

  By the way, in the electric lock device of the above-mentioned embodiment, when the locking / unlocking data read by the information reading unit 10 is determined and the locking / unlocking data is normally authenticated, the current locking / unlocking state of the lock and the door opening / closing state Although it has been described that the lock is locked and unlocked according to (monitor information), it is not limited to this configuration. For example, what is necessary is just the electric lock apparatus using the battery 11a as a drive power supply of each part including what locks and unlocks before a lock by pressing down a lock button or an unlock button.

  Further, the electric lock device shown in FIG. 1 may be configured such that the ringing unit 14 is omitted, and the battery replacement notification may be performed only by display. In this case, the threshold value for battery replacement determination is set as a minimum value that is slightly larger than the capacity at which the display for prompting battery replacement on the display unit 13 can be performed at least once. Thereby, compared with the structure provided with the ringing part 14, the capacity | capacitance of the battery 11a can be used to the last minute.

It is a schematic block diagram for demonstrating the structure of the electric lock apparatus which concerns on this invention. (A) It is explanatory drawing for demonstrating operation | movement when the battery capacity of the electric lock apparatus which concerns on this invention is full or middle. (B) It is explanatory drawing for demonstrating operation | movement when the battery capacity of the electric lock apparatus which concerns on this invention is near end. (C) It is explanatory drawing for demonstrating operation | movement when the battery capacity of the electric lock apparatus which concerns on this invention is an end. It is a schematic block diagram for demonstrating the conventional electric lock apparatus disclosed by patent document 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric lock device 10 Information reading part 11 Power supply part 11a Battery 12 Battery remaining charge detection part 13 Display part 14 Ringing part 15 Control part 15a Memory | storage means 15b Determination means 15ba State determination means 15bb Battery replacement presence determination means 15c Battery replacement notification control Means 16 Electric lock

Claims (2)

In an electric lock device that includes a power supply unit that uses a battery as a driving power source and performs locking / unlocking control based on the result of determining the validity of the locking / unlocking information read from the locking / unlocking card,
A display unit having a memory property capable of maintaining a display state even when power supply from the power supply unit is cut off;
A remaining battery level detection unit for detecting the remaining battery level;
When the battery remaining amount value detected by the battery remaining amount detecting unit is equal to or less than a preset threshold value corresponding to the minimum value that needs to be replaced, the display unit displays the battery. An electric lock device comprising: a control unit that rewrites contents to be urged and controls display. It further includes a sounding unit that generates an alarm,
The control unit drives and controls the ringing unit to generate the alarm together with display control of the display unit when a battery remaining amount value detected by the battery remaining amount detection unit becomes equal to or less than the threshold value. The electric lock device according to claim 1.

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