JPH0847061A - Electric lock supervisory device - Google Patents

Abstract

PURPOSE:To provide the electric lock supervisory device in which cable wiring work for data transmission relating to an electric lock. CONSTITUTION:A gate door switch 21 detecting status data relating to an electric lock 20, a lock switch 22 and an unlock switch 23 are provided to the electric lock 20 and the state relating to the electric lock 20 is supervised based on the detected status data in this electric lock supervisory device, which is provided with an oscillation means 11 provided in the vicinity of the electric lock 20 and oscillating a frequency signal different from status data to be detected, a signal detection means 13 detecting the oscillated frequency signal, and a supervisory means 14 supervising the state relating to the electric lock 20 based on the frequency signal to be detected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric lock monitor for monitoring the state of an electric lock that can be electrically operated remotely.

[0002]

2. Description of the Related Art In recent years, electric locks that can be locked or unlocked by such remote control have become widespread.
In many cases, the electric lock can be remotely operated, and the lock / unlock state and the open / closed state of the door can be monitored from a remote place.

As a general method of such monitoring,
The electric lock monitoring device detects that the electric lock outputs a contact according to the locked and unlocked states of the lock and the open / closed state of the door, and the electric lock monitoring device detects the state of the electric lock according to the detection result. There are some that are supposed to be monitored.

Now, such a conventional electric lock monitoring device will be described. FIG. 4 is a block diagram showing an outline of a conventional electric lock monitoring device.

In FIG. 4, the electric lock monitoring device 30 is
It is connected to the electric lock 20 via a cable 40.

In the electric lock 20, an open / close door switch 21 that closes the contact when the door is closed and opens the contact when the door is opened, a lock switch 22 that closes the contact when the lock is locked, and It has an unlock switch 23 that closes the contact when the lock is unlocked.

Inside the electric lock monitoring device 30, a door state monitoring means 31 for detecting the conduction of contacts in the open / close door switch 21 to monitor the open / closed state of the door, the lock switch 22 and the unlock switch. It has a lock state monitoring means 32 for detecting the conduction of the contact at 23 and monitoring the locked and unlocked states of the lock.

According to the electric lock monitoring device 30, the conduction data of each of the opening / closing door switch 21, the lock switch 22 and the unlock switch 23 from the electric lock 20 via the cable 40, that is, the state data relating to the electric lock. Can be detected by parallel transmission, and the open / closed state of the door of the electric lock 20 and the locked / unlocked state of the lock can be monitored based on the detection result of each state data.

[0009]

However, according to the conventional electric lock monitoring device 30 described above, since the data transmission between the electric lock 20 and the electric lock monitoring device 30 is performed in parallel, the electric lock 20 and the electric lock 20 are not transmitted. Electric lock monitoring device 30
The cable 40 connecting between the multi-core cables is a multi-core cable, and troubles such as erroneous wiring of the multi-core cable are likely to occur, and moreover, wiring work for avoiding such troubles is very troublesome. there were.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide an electric lock monitoring device which makes it possible to satisfactorily perform cable wiring work for data transmission related to an electric lock.

[0011]

In order to achieve the above object, the electric lock monitoring apparatus of the present invention is provided with a data detecting means for detecting the status data of the electric lock, and the electric lock has the detected status data. An electric lock monitoring device for monitoring a state related to the electric lock based on, an oscillating means for oscillating different frequency signals corresponding to the detected state data, and a signal detection for detecting the oscillated frequency signal. And means for monitoring the state of the electric lock based on the detected frequency signal.

[0012]

With such a structure, according to the electric lock monitoring device of the present invention, the state data related to the electric lock is detected by the data detecting means provided in the electric lock, and the oscillating means provided in the vicinity of the electric lock is used. Since the different frequency signal corresponding to the detected state data is converted and the converted frequency signal is serially transmitted to the monitoring means,
The cable for transmitting the frequency signal as the status data need only be a non-polarized two-core cable, and the cable wiring work related to the status data transmission can be improved.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An electric lock monitoring device of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an outline of an electric lock monitoring device according to a first embodiment of the present invention. still,
The same parts as those of the electric lock monitoring device shown in FIG. 4 are designated by the same reference numerals, and the description of the configuration and operation thereof is omitted.

In FIG. 1, an electric lock monitoring device 10 is provided in the vicinity of the electric lock 20 and is connected to various switches such as an opening / closing door switch 21, a locking switch 22 and an unlocking switch 23 inside the electric lock 20. To detect the state data and oscillate high-frequency signals of different frequencies corresponding to the detected state data, and the high-frequency signal oscillated by the oscillating means 11 through a nonpolar two-core cable 12. It has a signal detection means 13 for detecting the electric lock 20 and a monitoring means 14 for monitoring the state of the electric lock 20 based on the detected high frequency signal.

The state data is a state relating to the electric lock 20, and is data relating to the opened / closed state of the door of the electric lock 20 and the unlocked / locked state of the lock.

Further, the oscillating means 11 stores a frequency pattern corresponding to each state data, and oscillates a high frequency signal corresponding to each state data based on the frequency pattern. FIG. 2 is an explanatory diagram showing an example of the frequency pattern of the oscillation means 11.

That is, the oscillating means 11 is, as shown in FIG. 2, 10 kHz when the electric lock 20 is locked and the door is opened, 5 kHz when the door is closed and 5 kHz when the door is closed.
0 kHz, 20 when the lock is unlocked and the door is open
100 kHz when the lock is unlocked and the door is closed
It oscillates a high frequency signal of kHz.

Further, the data detecting means according to claim 1 is an opening / closing door switch 21 provided inside the electric lock 20.
It corresponds to the lock switch 22 and the unlock switch 23.

Then, the electric lock monitoring device 1 of the first embodiment.
The operation of 0 will be described. When the oscillating means 11 provided in the vicinity of the electric lock 20 detects the state data in a state in which the contacts of the open / close door switch 21 and the unlock switch 23 inside the electric lock 20 are closed and the contacts of the lock switch 22 are opened. , 100 based on the state data as shown in FIG.
A high frequency signal of kHz is supplied to the signal detecting means 13 via the cable 12.

The signal detecting means 13 is 100 kH.
The high frequency signal of z is supplied to the monitoring means 14. Based on the high-frequency signal of 100 kHz, the monitoring means 14 causes the state of the electric lock 20, that is, the lock is unlocked, as shown in FIG.
It is determined that the door is closed.

Therefore, according to the electric lock monitoring device 10 of the first embodiment, the oscillating means 11 provided in the vicinity of the electric lock 20 causes the high frequency signals of different frequencies corresponding to the respective state data of the electric lock 20. Since the converted high frequency signal is serially transmitted to the monitoring means 14 via the cable 12, the cable 12 for transmitting the high frequency signal as the status data is a non-polar two-core cable. The cable wiring work relating to the status data transmission can be improved.

In the first embodiment, the high frequency signal as the state data oscillated by the oscillating means 11 is transmitted to the signal detecting means 13 via the cable 12 for data transmission. The signal may be transmitted via a power supply cable for supplying power to the electric lock 20, and an embodiment in this case will be described as a second embodiment.

FIG. 3 is a block diagram showing the outline of the electric lock monitoring device 10 of the second embodiment. The same parts as those of the electric lock monitoring device 10 of the first embodiment shown in FIG.

In FIG. 3, reference numeral 24 is an actuator such as a motor or solenoid for driving a lock mechanism provided inside the electric lock 20, 25 is a power source section for supplying a power supply signal to the actuator 24, and 26 Is a power supply cable for supplying power from the power supply unit 25 to the actuator 24.

According to the electric lock monitoring device 10 of the second embodiment, the high frequency signal as the state data oscillated by the oscillating means 11 is superimposed on the power feeding signal fed by the power feeding cable 26 to detect the signal. Since the data is output to the means 13, it is not necessary to provide the state data transmission cable 12 as in the first embodiment as well as the effect of the first embodiment, and the manufacturing cost can be reduced.

In the above embodiment, as shown in FIG. 2, the electric lock 20 has four frequency patterns corresponding to four states. For example, the lock switch 2
In the case where both the contacts of 2 and the unlock switch 23 detect the open state, the frequency pattern may be increased.
It goes without saying that this is not the case.

Further, in the above embodiment, the oscillating means 11 sends the high frequency signal of a single frequency corresponding to each state data based on the preset frequency pattern. You may make it transmit a high frequency signal simultaneously.

[0028]

According to the electric lock monitoring device of the present invention configured as described above, the state data relating to the electric lock is detected by the data detecting means provided in the electric lock and is provided in the vicinity of the electric lock. The frequency signal corresponding to the detected status data is converted into different frequency signals by the oscillating means, and the converted frequency signal is serially transmitted to the monitoring means. Is a non-polarized two-core cable, and the cable wiring work relating to the status data transmission can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing an outline of an electric lock monitoring device according to a first embodiment of the present invention.

FIG. 2 is an explanatory view showing an example of a frequency pattern in the oscillation means of the electric lock monitoring device of the present invention.

FIG. 3 is a block diagram showing an outline of an electric lock monitoring device according to a second embodiment of the present invention.

FIG. 4 is a block diagram showing an outline of a conventional electric lock monitoring device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Electric lock monitoring device 11 Oscillating means 13 Signal detecting means 14 Monitoring means 20 Electric lock 21 Open / close door switch (data detecting means) 22 Locking switch (data detecting means) 23 Unlocking switch (data detecting means)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Aiichiro Kuwayama 4-3-1, Tsunashima-higashi, Kohoku-ku, Yokohama, Kanagawa Matsushita Communication Industrial Co., Ltd.

Claims (2)

[Claims] 1. An electric lock monitoring device, wherein data detection means for detecting state data relating to an electric lock is provided in the electric lock, and the state related to the electric lock is monitored based on the detected state data. Oscillation means that oscillates different frequency signals corresponding to the detected state data, signal detection means that detects the oscillated frequency signal, and monitors the state related to the electric lock based on the detected frequency signal. And an electric lock monitoring device. 2. The frequency signal oscillated by the oscillating means is superimposed on a power supply signal for driving the electric lock, and the frequency signal superimposed on the power supply signal is detected by the signal detecting means. The electric lock monitoring device according to claim 1.