JP5085466B2 - Electric lock abnormality detection system - Google Patents

Description

  The present invention relates to an electric lock abnormality detection system, and more particularly, to an abnormality detection system capable of distinguishing and detecting whether an electric lock abnormality is caused by aging or a transient failure.

As a conventional technique of an electric lock abnormality detection device, for example, as described in Patent Document 1, a technique for automatically diagnosing the lock / unlock state of an electric lock during construction and maintenance inspection has been proposed. According to this Patent Document 1, it is disclosed that a current value for driving an electric lock is detected to detect disconnection or short circuit of the electric lock operation signal line.
Japanese Patent No. 3083770

  The prior art disclosed in the above-mentioned patent document 1 detects wiring abnormality between the electric lock and the electric lock control device by detecting disconnection and short circuit of the electric lock operation signal, and includes the electric lock. In addition, there has been a problem that it is impossible to distinguish whether each device is a failure due to aging or a transient failure. In addition, there is also a problem that only the wiring portion is a detection target for the failed part.

  An object of the present invention is to provide an electric lock abnormality detection system capable of accurately and quickly detecting whether a secular change or a transient failure occurs when an abnormality occurs in the operation of the electric lock. .

In order to solve the above problems, the present invention adopts the following configuration.
An electric lock that locks and unlocks the door; and an electric lock control device that outputs a lock signal and an unlock signal to the electric lock and acquires electric lock operation data when the electric lock is locked and unlocked. An electric lock abnormality detection system comprising at least a control center that collects the electric lock operation data acquired by the electric lock control device via a communication line,
The electric lock control device detects the occurrence of an abnormality of the electric lock based on the acquired electric lock operation data , and deadbolts from the rise of the lock command signal which is the electric lock operation data at the time of occurrence of the abnormality to the rise of the lock completion signal A reporting function for reporting the driving time of the dead bolt to the control center, and when the control center receives the notification of the occurrence of the abnormality from the electric lock control device, the transmitted driving time data of the dead bolt at the time of the occurrence of the abnormality And a determination function for determining a change tendency of the electric lock operation data by comparing with the driving time data of the dead bolt for several days before the occurrence of the abnormality , and the control center further includes the determination function. Therefore, a transient failure is determined when the driving time of the deadbolt suddenly exceeds the threshold, and a secular failure occurs when the threshold is gradually approached and exceeded the threshold. It has a determination function of error factors determining, a configuration having the indicated function of outputting an appropriate instruction that addresses the above error factors.

  According to the present invention, the operation data during the normal operation of the electric lock is taken in a predetermined cycle, and the obtained data is compared with the electric lock operation data when an abnormality occurs, so that the electric lock is deteriorated over time. Since it is possible to determine whether the failure is a transient failure and to specify the failure location and replacement parts, the failure recovery can be performed quickly.

  An electric lock abnormality detection system according to an embodiment of the present invention will be described below in detail with reference to FIGS. FIG. 1 is a block diagram showing the overall configuration of an electric lock abnormality detection system according to an embodiment of the present invention. FIG. 2 is a time chart showing electric lock operation data in a normal state in the electric lock abnormality detection system according to the present embodiment. FIG. 3 is a time chart showing electric lock operation data at the time of abnormality in the electric lock abnormality detection system according to the present embodiment. FIG. 4 is a flowchart showing an operation example of the electric lock control device in the electric lock abnormality detection system according to the present embodiment. FIG. 5 is a flowchart showing an operation example of the control center in the electric lock abnormality detection system according to the present embodiment.

In the drawings, 1 is an electric lock control device, 1a is a communication interface, 1b is an electric lock drive circuit, 1c is a card reader drive circuit, 1d is a control device, 1f is an electric lock operation data input circuit, 1e is a storage device, General line, 3 is a control center, 3a is a communication interface, 3b is a control device, 3c is a storage device, 4 _{1 to} 4n are electric locks (hereinafter also referred to as electric lock 4), and 5 _{1 to} 5n are card readers (Hereinafter also referred to as the card reader 5 as a representative).

In FIG. 1, a door (not shown) provided in a building is provided with electric locks 4 _{1 to} 4 n for locking and unlocking and card readers 5 _{1 to} 5 n for authentication, and these electric locks 4 _{1 to} 4 n. And an electric lock control device 1 connected to the card readers 5 ₁ to 5 n. In addition, the electric lock control device 1 is remotely connected to the control center 3 via the general line 2 to report the occurrence of an abnormality in the electric locks 4 _{1 to} 4 n. The electric lock abnormality detection system according to the embodiment of the present invention includes the electric lock 4, the card reader 5, the electric lock control device 1, and the control center 3 described above.

Here, the electric lock controller 1, the electric lock drive circuit 1b for controlling the electric lock ₄ 1 to 4n, and a card reader drive circuit 1c for controlling the card reader ₅ 1 through 5n, door electric lock ₄ 1 to 4n An electric lock operation data input circuit 1f for taking in electric lock operation data such as opening and closing and locking / unlocking, a storage device 1e for storing the acquired electric lock operation data, a communication interface 1a for notifying the control center 3, And a control device 1d for controlling these components. Incidentally, the locking command signal from the electric lock controller 1 on the basis of the authentication data from the card reader 5, unlocking command signal, provided by each electric lock 4 ₁ to 4n through the electric lock drive circuit 1b current Is locked or unlocked by applying or interrupting the current. The electric lock control device 1 acquires the lock completion signal or the unlock completion signal of the electric lock from the electric lock 4 via the electric lock operation data input circuit 1f.

  In addition, the control center 3 includes a communication interface 3a that communicates with the electric lock control device 1 via the general line 2, a storage device 3c that stores electric lock operation data and the like notified from the electric lock control device 1, and the like. And a control device 3b for controlling these components.

  Next, based on the time chart shown in FIG. 2, the operation when the electric lock is normal in the electric lock operation data acquired once a day by the electric lock control device according to the present embodiment will be described. The electric lock operation data input circuit 1f of the electric lock control device 1 acquires the electric lock operation data from the electric lock 4, temporarily stores it in the storage device 1e through the control device 1d, and once a week for one week. The electric lock operation data is transmitted to the control center 3 via the general line 2, and the transmitted electric lock operation data is stored in the storage device 3 e of the control center 3.

  Here, the electric lock 4 is a mechanism that locks and unlocks the door by driving a dead bolt (not shown). The number of driving times Tl of the electric lock 4 and the door are not necessarily limited even when the door is unlocked. May not be opened (since the number of times the electric lock is driven and the number of times the door is driven does not necessarily match), the door drive times T2 is used as basic information (determining whether the failure is aged or transient) As information to be used).

  Various signals of the electric lock 4 include a door closing signal T4 that outputs a signal when the door is closed, a door opening signal T5 that outputs a signal when the door is opened, a locking command signal T6 that commands locking, and an unlocking There are an unlock command signal T7 for commanding, a lock completion signal T8 for outputting a signal when the lock is completed, and an unlock completion signal T9 for outputting a signal when the unlock is completed. Is stored in the storage device 1e from the electric lock operation data input circuit 1f with sampling of 100 ms, for example. The time chart of FIG. 2 is visible, and the data actually stored is binary data.

  In addition, a time Tl0 from the rise of the lock command signal T6 for issuing a lock command to the electric lock 4 to the rise of the lock completion signal T8 output after the electric lock 4 is locked is a dead bolt (not shown) from the unlock position. This time Tl0 is the time to drive to the locking completion position, and this time Tl0 tends to become longer due to the aging of the electric lock 4, and this time Tl0 is calculated by the control device 3b of the control center 3 and stored in the storage device 3c. .

  Here, since the lock completion signal T8 is output, for example, after 1 second (time when the electric lock is normal) from the output of the lock command signal T6, for example, the electric lock abnormality T3 is not output, Normal operation is indicated. Further, at the time of unlocking, as in the case of locking, if there is an output of the unlocking completion signal T9 after the output of the unlocking command signal T7, it is determined as normal.

  Next, based on the time chart of FIG. 3, the operation | movement at the time of abnormality occurrence of the electric lock 4 regarding this embodiment is demonstrated. An abnormality when the electric lock 4 is locked is a case where the lock completion signal TA8 is not output from the electric lock 4 even though the lock command signal TA6 is output. This is a case where the unlocking completion signal TA9 is not output from the electric lock 4 even though the unlocking command signal TA7 is output.

  Here, the abnormality detection at the time of locking of the electric lock 4 is a predetermined time period Tll after the locking command signal TA6 is output, for example, 2 seconds (when the initial value of the electric lock is 0.5 seconds) When the lock completion signal TA8 is not output even after elapse of, for example, a value increased by 1.5 seconds from the initial value, it is determined that the electric lock 4 is not locked and an electric lock abnormality TA3 is output.

  Next, the operation for determining the cause of the abnormality from the acquired electric lock operation data will be described using the flowcharts of FIGS. 4 and 5. First, the operation of the electric lock control device 1 according to the present embodiment will be described with reference to the flowchart of FIG.

The electric lock control device 1 takes in the operations of the electric locks 4 _{1 to} 4n and the card readers 5 _{1 to} 5n, and opens the door closing signal T4 and the door opening signal T5, the locking command signal T6 and the unlocking command signal T7, and the locking completion signal T8. And the unlocking completion signal T9 is acquired by the electric lock operation data input circuit 1f and stored in the storage device 1e (step SAl), and the control device 1d starts from the rising edge of the locking command signal T6 based on these stored data. A dead bolt (not shown) from the unlocking position to the locking completion position is calculated and stored in the storage device 1e until the locking completion signal T8 rises (step SA2), and the electric lock driving frequency Tl is counted up. Store in the storage device 1e (step SA3), count up the door drive time T2 and store in the storage device 1e (step SA4).

  Next, the time chart data when the door is opened and closed for a certain period of time, for example, the time T10, the electric lock driving frequency Tl, and the door driving frequency T2 measured in steps SA2 to SA4 are sent to the control center 3 to the general line 2 (Step SA5).

Further, based on the time T11 shown in FIG. 3, when the electric lock 4 of ₁ to 4n abnormality occurs (step SA6), notifies the electric lock abnormality TA3 shown in the time chart at the time of abnormality in Figure 3 to the control center 3 In addition, data not transmitted to the control center 3 stored in the storage device 1e, a door closing signal TA4, a door opening signal TA5, a locking command signal TA6, an unlocking command signal TA7, and a locking completion signal when an abnormality occurs TA8 and an unlocking completion signal TA9 are transmitted to the control center 3 (step SA7), and a recovery operation is awaited.

Next, the operation of the control center 3 according to the present embodiment will be described with reference to the flowchart of FIG. The control center 3 that has received the electric lock abnormality TA3, which is an abnormality of the electric locks 4 _{1 to} 4n from the electric lock control device 1 (step SBl), compares changes in various data 1 to 5 days before the occurrence of the abnormality ( Step SB2).

For example, the tendency of time T10, which is the time when a dead bolt (not shown) is driven from the unlocking position to the locking completion position, is compared, and the time T10 is suddenly changed from 1 second to 2 seconds, or the time T10 is 2 determine gradually becomes 2 seconds seconds vicinity (step SB3), the time when the Tl0 becomes suddenly 2 seconds 1 seconds, electric lock 4 ₁ to 4n abnormalities transient (or idiopathic) (Step SB4), a work instruction for an abnormal part indicating that it is necessary to confirm the mounting position of a magnet switch (not shown) for detecting the closing of the door and the mounting state of the door parts, etc. SB5) After the repair, the electric lock is driven about 20 times to instruct the abnormality recovery worker to confirm that the abnormality does not recur (step SB6).

Next, in step SB3 shown in FIG. 5, when the time T10 gradually becomes 2 seconds from around 2 seconds, it is determined that parts such as a dead bolt (not shown) have deteriorated over time (step SB7), and the number of times of driving the electric lock is increased. It is determined whether Tl, TAl and door drive times T2, TA2 are equal to or greater than a predetermined operation number of 10,000 times (an example number) (step SB8). When the time Tl0, which is the driving time of, becomes 1.5 seconds or more added by 1.5 seconds from the initial value (0.5 seconds) (step SB9), it is determined that the electric locks 4 _{1 to} 4n have failed due to aging (step SB9). SB10), an instruction to replace the parts of the electric locks 4 _{1 to} 4n is issued to the abnormality recovery worker.

  Further, in step SB8, the operation times of the electric lock driving times Tl and TAl and the door driving times T2 and TA2 do not exceed 10,000 times, or in step SB9, the dead bolt driving time is not shown. If the time Tl0 does not exceed 2 seconds, which is 1.5 seconds from the initial value of 0.5 seconds, it is determined that the door and door parts such as the door stopper have failed due to aging (step SBll), and these are repaired or replaced. Work can be ordered.

Thus, the control center 3, an electric lock 4 ₁ to 4n locking time and data acquisition functions 3a for taking an electric lock operation data at the time of unlocking in a predetermined period, 3b, 3c provided in the building, electrical When the notification of the occurrence of the abnormality of the locks 4 _{1 to} 4 n is received, the abnormality occurrence data acquisition function means 3 a, 3 b, 3 c for acquiring the electric lock operation data at the occurrence of the abnormality and the data collection functions 3 a, 3 b, 3 c By comparing the electric lock operation data with the electric lock operation data acquired by the abnormality occurrence data acquisition function 3a, 3b, 3c, the operation state determination function 3b for determining the change tendency of the operation state, and the operation state determination function 3b It has an abnormality factor determination function 3b that determines whether it is aged deterioration or transient failure based on the presence or absence of a change tendency.

According to the present embodiment, stores the operating state data of the electric lock 4 ₁ to 4n, or operating condition data of the abnormality occurring equipment very quickly exceed batchwise, it is determined whether it exceeds the threshold value approached gradually threshold Thus, by determining whether the failure is a transient failure or an aging failure, an appropriate work instruction and work preparation can be performed, so that failure recovery can be performed quickly.

  In the present embodiment, the driving time of the dead bolt (not shown) is measured by obtaining the time T10 from the rising edge of the locking command signal T6 to the rising edge of the locking completion signal T8. The same effect can be obtained even if obtained from a solenoid.

1 is a block diagram showing an overall configuration of an electric lock abnormality detection system according to an embodiment of the present invention. It is a time chart which shows the electric lock operation data at the time of normal in the electric lock abnormality detection system concerning this embodiment. It is a time chart which shows the electric lock operation | movement data at the time of abnormality in the electric lock abnormality detection system which concerns on this embodiment. It is a flowchart showing the operation example of the electric lock control apparatus in the electric lock abnormality detection system which concerns on this embodiment. It is a flowchart showing the operation example of the control center in the electric lock abnormality detection system which concerns on this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric lock control apparatus 1a Communication interface 1b Electric lock drive circuit 1c Card reader drive circuit 1d Controller 1f Electric lock operation data input circuit 1e Storage device 2 General line 3 Control center 3a Communication interface 3b Control device 3c Storage device 4, 4 ₁ ~4n electric lock 5,5 ₁ ~5n card reader

Claims (1)

An electric lock that locks and unlocks the door; and an electric lock control device that outputs a lock signal and an unlock signal to the electric lock and acquires electric lock operation data when the electric lock is locked and unlocked. An electric lock abnormality detection system comprising at least a control center that collects the electric lock operation data acquired by the electric lock control device via a communication line,
The electric lock control device detects the occurrence of an abnormality of the electric lock based on the acquired electric lock operation data , and deadbolts from the rise of the lock command signal which is the electric lock operation data at the time of occurrence of the abnormality to the rise of the lock completion signal Has a reporting function to report the driving time to the control center,
When the control center receives the notification of occurrence of the abnormality from the electric lock control device, the transmitted driving time data of the dead bolt at the time of occurrence of the abnormality is converted to the driving time of the dead bolt for several days before the occurrence of the abnormality. and compares the data, the has a determination function of determining change trend of the electric lock operation data,
Further, the control center determines that a transient failure has occurred when the deadbolt driving time rapidly exceeds the threshold by the determination function , and when the threshold gradually approaches the threshold and exceeds the threshold, An electric lock abnormality detection system having an abnormality factor determination function for determining a change failure, and an instruction function for outputting an appropriate instruction corresponding to the abnormality factor.

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