JPH03267486A - Electrical lock operation controller and locking and unlocking operation unit for extension - Google Patents

Abstract

PURPOSE:To simplify internal constitution, to save cost and to promote reliability by making it possible to connect an improved locking and unlocking unit, existing electrical lock and AC power unit to an electrical lock operation controller having simplified constitution. CONSTITUTION:When an electrical lock 200 is locked, an unlocking operation switch 10b is operated, and power is connected in the direction specified by a diode D1 of a power switching means 201 of the electrical lock 200 through the electrical lock 200 and a locking and unlocking operation part 10 of an electrical lock operation controller 1. Power to a lock solenoid L is connected, and dead volt makes an unlocking operation. After that, when the unlocking operation is completed, a locking and unlocking detection switch 201a is switched over to the contact (b), and power to the lock solenoid L by AC power is automatically disconnected. The electrical lock 200 is unlocked and, at the same time, power specified by a current limiting resistor R to an unlocking indicator lamp 11b of a locking and unlocking display part 11 is connected to make an unlocking display.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is directed to improving an electric lock operation controller and an additional lock/unlock operation unit used in an electric lock/unlock system.

[Prior Art] Recently, an electric locking/unlocking system has been developed and used in which an electric lock attached to a door etc. is remotely controlled from an electric lock operation controller installed in a dwelling unit to lock and unlock the electric lock.

Such an electric locking/unlocking system connects an AC power supply unit that supplies AC power, an electric lock operation controller, and an electric lock with a signal line, and connects the AC power supply unit to the electric lock operation controller with an electric power source. The locking and unlocking operations are performed by controlling electricity within the lock operation controller and outputting it to the electric lock side. In order to improve operability, this electric lock operation controller has a secret operation device that locks and unlocks the electric lock by inputting a PIN number, and a place other than the electric lock operation controller. Since it is possible to connect an additional lock/unlock operation unit for locking and unlocking the door, even if you have visitors, you can remotely control the electric lock and smoothly respond to customers from inside the room. Furthermore, even if the resident is not home, the door can be unlocked using the secret operating device 400 if one knows the password, making the system easy to use.

However, 1! used in the conventional electric locking/unlocking system!
Lock operation controllers and additional lock/unlock operation units have very complicated internal circuits, which results in poor manufacturing efficiency, high costs, and low reliability.

FIG. 3 shows an example of such an electric lock/unlock system, in which a signal line j! is connected to the electric lock operation controller 100. 100
Connect the electric lock 200 via the signal line 1
AC power is supplied from the AC power supply unit 300 via the signal line 110 as necessary.
2 to the secret controller 400 or the signal line p
It is configured such that an additional locking/unlocking operation unit is connected via 103.

The general configuration of the electric lock operation controller 100 will be explained as follows: 1
01 is a locking/unlocking operation section having a locking/unlocking operation switch SWI; 102 is a locking control circuit that outputs a locking control signal in response to the operation of the locking/unlocking operation section 101; and 103 is a locking/unlocking operation section that similarly responds to the operation of the locking/unlocking operation section 101. 104 is a locking indicator light drive circuit for lighting up the locking indicator light Ll of the locking/unlocking operation unit 101 when the lock is locked; 105 is also a locking/unlocking operation circuit when the lock is unlocked; 106 is a locking control circuit 102 and an unlocking control circuit 1;
The electric lock 2 receives the locking/unlocking control signal output from 03.
Relay RYI that reverses the polarity of the power supply energized to 00,
107 is a lock/unlock display drive circuit 1 according to the locked/unlocked state of the electric lock 200;
04,105 Lock state detection circuit for driving energization, 10
B has a bridge diode BD for rectification and a smoothing capacitor C, and 09 is a constant voltage circuit for stabilizing the DC power obtained by rectifying and smoothing the AC source; 09 is the secret controller 400 side; This is a password setting circuit for presetting a password to be input.

The electric lock 200 includes a lock solenoid L that locks and unlocks a deadbolt (not shown) every time a power source with reversed polarity is applied, and a locking state that changes depending on whether the deadbolt is locked or unlocked. It includes a detection switch 201a, and diodes (DI) and D2 that are connected in parallel to the key state detection switch 201a so that their energization directions are opposite to each other and that reverse the energization direction in response to the switching operation of the switch 201a. , a conduction polarity switching means 201 connected in series to one end of the lock solenoid L, and a key state detection switch that closes when unlocking in conjunction with the locking and unlocking operations of the put bolt similarly to the key state detection switch 201a. 202.

The secret operating device 400 also includes a password input section 401 for inputting a password, and a password input section 40 for inputting a password.
The PIN comparison unit 402 compares and determines the PIN entered in step 1 with the PIN set by the PIN setting unit 109 of the electric lock operation controller 100, and the PIN comparison unit 402 determines whether the PIN numbers match. When the signal processing circuit 403 outputs an unlocking control signal, the series connection of the diode F'D7 and the locking operation switch 404a, and the unlocking control signal outputted from the diode D8 and the signal processing circuit 403. and the unlock control contact 404b which is closed by the respective diodes D? , and a lock/unlock control operation section 404 which are connected in parallel so that the energizing directions of the DBs are opposite to each other.

The general operation of the electric locking/unlocking system having such a configuration will be explained. However, when the electric lock 200 is in the unlocked state, it is assumed that the key state detection switch 201a is switched to the contact side.

When unlocking, the key state detection switch 202 of the electric lock 200
is closed, the unlock indicator light drive circuit 105 is driven by the key state detection circuit 07 of the electric lock operation controller 100, and thereby the AC applied through the lock control circuit 102 and the lock/unlock operation section 101 is activated. The power supply lights up the unlocking indicator light L2 of the locking/unlocking operation section 101 to indicate that the lock is unlocked.

Lock/unlock operation MITI 101 lock/unlock operation switch sW
1 is operated, the charging voltage of the capacitor C makes the thyristor 5CR2 conductive, the current flowing through the locking control circuit 102 increases, and a locking control signal is output. This locking control signal drives relay RYI of locking/unlocking energization control circuit 106, and relay contacts ry1a, ry1
b is closed, and a DC power source for locking is supplied to the electric lock 200 side. This drives the lock solenoid L to lock the deadbolt, and when the locking is completed, the key state detection switch 201a of the energization switching means 2.1 switches to the contact a.
When the power is switched to the side, the power is cut off.

On the other hand, when the lock state is reached, the key state detection switch 202 is opened, so the lock indicator light drive circuit 104 is driven by the key state detection circuit 107, and thereby the unlock control circuit 1
03 and the AC power applied through the lock/unlock operation section 101 lights up the lock indicator light Ll of the lock/unlock operation section 101 to display the lock.

In addition, the lock/unlock operation switch SWI of the lock/unlock operation unit 101 is
When is operated again, the charging voltage of the capacitor C has reversed polarity, so the thyristor 5CR1 becomes conductive, the current flowing through the unlocking control circuit 103 increases, and an unlocking control signal is output. Lock/unlock energization control circuit 1 by this unlock control signal
06 relay RY2 is driven, relay contact ry 2
a and ry 2b are closed, and DC power is supplied to the electric lock 200 for unlocking. As a result, the lock solenoid L is driven to unlock the deadbolt, and when the unlocking is completed, the key state detection switch 201a of the energization switching means 201 is switched to the contact side, and the energization is cut off. Then, it returns to the locked state again.

Furthermore, when the password is input using the secret operation device 400, the lock/unlock operation section 1 of the TL electric operation controller 100 is activated.
Locking/unlocking is similarly performed by the locking/unlocking operation control unit 404 of the secret operating device 400 instead of 01.

As described above, in the electric locking/unlocking system having such a configuration, in order to supply power with reversed polarity to the electric lock 101, an alternating current power source is rectified and smoothed within the electric lock operation controller 100. The DC power source is switched and energized using a relay or a semiconductor switching element, which complicates the internal configuration and increases costs. In addition, a lock/unlock operation section 101, a lock/unlock control circuit]02
゜103 or lock/unlock indicator light drive circuit 104゜10
5. Since the circuit configuration is operated by receiving AC power supply, the configuration of each part of the -layer becomes complicated, which takes time to manufacture, increases cost, and reduces reliability. Ta.

[Problems to be Solved by the Invention] The present invention proposed in view of the above circumstances can connect existing electric locks and secret operating devices, and
The object of the present invention is to provide an electric lock operation controller that has a simplified internal configuration, reduced costs, and improved reliability.

Another object of the present invention, which is proposed at the same time, is to provide an additional locking/unlocking operation unit that has a simple configuration, achieves cost savings, and improves reliability.

[Means for Solving the Problems] The present invention according to claim 1 proposed to achieve the above object has a locking/unlocking operation section and a lock status display section, and a separately placed AC NR unit. In response to the 'R source supplied from the lock/unlock operation section, power is output to the electric lock side which is designed to switch the conductivity polarity in the locked/unlocked state, in accordance with the operation of the locking/unlocking operation part. In an electric lock operation controller that performs a lock operation and displays the locked/unlocked state of the electric lock on the lock status display section, the lock/unlock operation section is supplied to the electric lock. It is inserted in series with the AC power supply, and the rectifying element and the locking operation switch are connected in series, and the rectifying element and the unlocking operation switch are connected in series. The lock status display unit is connected in parallel to the lock/unlock operation unit, and includes a lock indicator light and an unlock unit that are connected in parallel with each other so as to be opposite to each other. The lock indicator lights are connected in parallel so that the directions of current flow are opposite to each other, and a current limiting resistor is connected in series.

The electric lock operation controller of the present invention according to claim 2 is provided with unit connection terminals at both ends of the lock/unlock operation section for connecting an additional lock/unlock operation unit that locks and unlocks the lock by remote control. It is also configured with additional features.

The electric lock operation controller of the present invention according to claim 3 includes a power circuit section for rectifying and smoothing the AC power received at the AC power terminal to obtain a stabilized DC power, and a password set in advance. The device further includes a password setting section for outputting the DC power obtained by the power supply circuit section and the password set by the password setting section to a separate secret operating device. The locking/unlocking signal transmitted from the secret operating device side is input to both ends of the locking/unlocking operation section.

The additional lock/unlock operation unit of the present invention according to claim 4 includes a rectifier element and a lock operation switch connected in series, and a rectifier element and an unlock operation switch connected in series. A locking/unlocking operation unit that is connected in parallel so that the energizing directions of the elements are opposite to each other, and a locking indicator light and an unlocking indicator light that provide an indication by passing current only in the forward direction.The energizing direction of the elements is opposite to each other. A current-limiting resistor is connected in series to the above locking/unlocking operation section, and a lock state display section is connected in parallel to the locking/unlocking operation section.

[Function] In the present invention as set forth in claim 1, when the lock operation switch of the lock/unlock operation section is operated, the AC power supplied from the AC power supply unit is half-wave rectified by the rectifier connected in series to the lock operation switch. The generated power is output to the electric lock side. Electric locks use this power to lock the door. When the lock is completed and the lock operation switch is released, the AC power supply applies current only in the direction that is allowed when the electric lock is in the locked state, and this current causes the lock indicator light on the lock status display section to turn on. It is energized and displays the locked status. Conversely, when the unlocking operation switch of the locking/unlocking operation section is operated, the AC power supplied from the AC power supply unit is half-wave rectified by a rectifying element connected in series to the unlocking operation switch. Outputs power with reverse polarity to the electric lock side. Electric locks receive this power to unlock the lock. When unlocking is completed and the operation of the unlocking operation switch is released, current is applied by the AC power supply only in the direction where electricity is allowed when the electric lock is in the unlocked state, and this current causes the unlocking of the lock status display section. In the present invention as set forth in claim 2, wherein the lock indicator light is energized to indicate the unlocked state, the locking/unlocking operation of the electric lock can be performed from the unit side by connecting an additional locking/unlocking operation unit to the unit connection terminal. At the same time, the lock status is displayed on the unit side.

In the present invention as set forth in claim 3, a DC power source for driving the internal circuit of the secret operating device is outputted from the power supply circuit section of the electric lock operation controller to the secret operating device side, and at the same time, the PIN number setting section While the set password is output, the locking signal or unlocking signal output from the secret operating device is applied to both ends of the locking/unlocking operation section of the electric lock operation controller to lock and unlock the electric lock. will be held.

In the present invention as set forth in claim 4, when the additional lock/unlock operation unit is connected to the unit connection terminal of the electric lock operation controller, the lock/unlock operation section and the lock status display section on this unit side are connected to each other.
It is electrically connected in parallel with the lock/unlock operation section and the lock status display section on the electric lock operation controller side. Therefore, the electric lock is locked and unlocked in response to the operation of the locking and unlocking operation switch on the unit side as well as the operation on the electric lock operation controller side.
Depending on the locked state of the electric lock, the locked/unlocked indicator light on the unit side will display the locked state.

[Example] The present invention will be described in detail below with reference to the drawings.

FIG. 1 shows a conventional electric lock connected to an electric lock operation controller according to claim 2 (an electric lock operation controller according to claim 1 provided with a unit connection terminal) l via a signal line AI. 200
At the same time, the AC power supply unit) 300 is connected via the signal line 12, and furthermore, the extension according to claim 4 is connected between the unit connection terminals TU and TU of the electric lock operation controller l via the signal line I13. This figure shows the system configuration when an electric locking/unlocking system is configured by connecting the locking/unlocking operation unit 2. Note that the electric lock 200 (in this embodiment, the lock state detection switch 202 is unnecessary) and the AC power supply unit 30
0 indicates the same configuration as the conventional one, so the same reference numerals are given.

The electric lock operation controller 1 includes AC power supply terminals TA, TA for connecting the AC power supply unit 300, and electric lock connection terminals TK, TK for connecting the electric lock 200, and these AC power supply terminals TA, TA. and electric lock connection terminals TK and TK, one of each is directly connected, and between the other,
A lock/unlock operation section 10 and a lock state display section 11 are connected in parallel. This locking/unlocking operation section 10 includes a rectifier diode D3 (hereinafter referred to as a diode) connected in series with a locking operation switch 10a, and a diode D4 and an unlocking operation switch 1Ob connected in series. , each diode D3. The configuration is such that D4 is connected in parallel so that the current direction is opposite to each other.
The lock status display unit 11 includes a lock indicator light 11a and an unlock indicator light 11b (in this embodiment, light emitting diodes are used) that are connected in parallel so that the directions of current flow are opposite to each other. The current limiting resistor R is connected in series with the current limiting resistor R.

First, we will explain the system operation in a state where the additional lock/unlock operation unit 2 is not connected to the electric lock operation controller l. When the electric lock 200 is in the locked state, the lock state detection switch 201a of the energization switching means 201 is connected to the contact a. It is assumed that the switch is connected to the side.

■When the electric lock 200 is locked, the lock state detection switch 201a of the energization switching means 201 is switched to the contact a side, so when the lock/unlock operation switches 10a and 10b are not operated, the AC T4 source is The AC power applied to terminals TA and TA connects the electric lock 200 and the electric lock operation controller 10.
A current is applied through the lock status display section 11 in a direction determined by the diode F D 1 of the energization switching means 201 of the electric lock 200 .

As a result, a current determined by the current limiting resistor R is applied to the lock indicator light 11a of the lock state display section 11, and a lock indicator is displayed.

■When the unlocking operation switch 10b is operated, the AC power applied to the AC power terminals TA, TA is passed through the electric lock 200 and the locking/unlocking operation part 10 of the electric lock operation controller 1 to the energization switching means 201 of the electric lock 200. A current is passed in the direction determined by the diode D1.

This energizes the lock solenoid L and unlocks the deadbolt (not shown).

(2) When the unlocking operation is completed, the lock state detection switch 201a of the electric lock 200 is switched to the contact side, and the power supply to the lock solenoid L from the AC power source is automatically cut off.

■The electric lock 200 is unlocked and the unlock operation switch 110b
When the operation of TA is released, the AC power terminal TA.

The AC power applied to TA passes through the electric lock 200 and the electric lock operation controller 10 lock status display unit 11 to the electric lock 200.
A current is passed in the direction determined by the diode D2 of the current switching means 201. As a result, a current determined by the current limiting resistor R is applied to the unlocking indicator light Jlb of the lock status display section 11, and an unlocking display is performed.

■ When the locking operation switch 10a is operated, the AC power applied to the AC power terminals TA, TA is applied to the electric lock 200 and the locking/unlocking operation part 10 of the electric lock operation controller 1, and the energization switching means 201 of the electric lock 200 is activated. A current is passed in the direction determined by the diode D2.

This energizes the lock solenoid L and locks the deadbolt (not shown).

(2) When the locking operation is completed, the lock state detection switch 201a of the electric lock 200 is switched to the contact a side, and the power supply to the lock solenoid F'L by the AC power source is automatically cut off.

Then, the display returns to the locked state again.

In this way, the electric lock operation controller 1 of the present invention has a very simple configuration as described above, so it is easy to manufacture and can save costs, and the simple circuit configuration makes it highly reliable. It is possible to improve

Next, the additional lock/unlock operation unit 2 will be explained. This operation unit 2 includes a diode F' D5 and a lock operation switch 20a connected in series, and a diode D6 and an unlock operation switch 20b connected in series, respectively. A lock/unlock operation unit 20 connected in parallel so that the energization directions of D6 are opposite to each other;
Lock indicator light 21 that displays by passing current only in the forward direction
A and unlocking indicator light 21b (in this embodiment, a light emitting diode is used) are connected in parallel so that the directions of current flow are opposite to each other, and a current limiting resistor R is connected in series to this. Lock status display section 2 connected in parallel to the operation section 20
1.

When this additional lock/unlock operation unit 2 is connected between the unit connection terminals TU and TU of the electric lock operation controller l via the signal line 13, the lock/unlock operation unit 10 on the electric lock operation controller l side
The lock/unlock operation section 20 on the unit 2 side and the lock status display section 21 are further connected in parallel to the lock status display section 11, so that the above-mentioned electric lock operation can be performed by the lock/unlock operation section 20 on the unit 2 side. The electric lock 200 can be locked and unlocked by the same operation as the one example of the controller, and
Lock status display gl'! 21, it is possible to display the locked state of the electric lock 200 simultaneously with the electric lock operation controller 1 side.

In this way, the additional locking/unlocking operation unit 2 of the present invention has a simple configuration, so it is easy to manufacture, reduces costs, and improves reliability.

Next, FIG. 2 shows that the above-mentioned electric lock 200, additional lock/unlock operation unit 2, and AC power supply unit 300 are connected to the electric lock operation controller 1' of the present invention according to claim 3, and , which shows the system configuration when an electric locking/unlocking system is configured by connecting the secret operating device 400, and the same parts are given the same reference numerals and the explanation will be omitted.

This electric lock operation controller 1' is a power supply circuit section for rectifying and smoothing the AC power received at the AC room R terminals TA and TA to obtain a stabilized DC power in the electric lock operation controller 1 described above. 108 (same configuration as the conventional one) and a password setting section 109 for presetting a password to be input on the secret operating device 400 side. DC power is supplied to the secret controller 400 side through the terminals TV, TV, and the password set in the password setting section 109 is transmitted to the secret controller 40θ side through the terminals TS, TS. The locking and unlocking signals transmitted from the terminals TU' and TU' (the unit connection terminal TU mentioned above)
, which are connected to both ends of the lock/unlock operation section 10 in the same way as the TU.

On the other hand, the secret operating device 400 has the same configuration as the conventional one.

Locking and unlocking operations from the secret operating device 400 side of the electric lock operating controller 1' having such a configuration will be described below.

■If you enter a password using the numeric keypad (not shown) in the password input section 401 of the secret controller 400, the password will be compared f! The password is output to B402.

■The PIN comparison unit 402 compares the PIN entered in the PIN input unit 401 with the PIN set in the PIN setting unit 109 of the electric lock operation controller 1°, and determines whether these PIN numbers are the same. When the signal processing circuit 403
Outputs a match determination signal.

■If the unlocking operation switch (not shown) is operated at the same time when the signal processing circuit 403 receives the match determination signal from the PIN comparison unit 402, the locking/unlocking operation control unit 40
No. 4 unlock control contact 404b is closed. This lock/unlock operation control unit 404 is connected to an electric lock operation controller l via a signal line 14.
Since it is connected in parallel to the locking/unlocking operation unit 10 of ゛, when the unlocking control contact 404b is closed, the unlocking operation switch 1
This is electrically equivalent to when 0b is operated, and the electric lock 200 is unlocked by the same operation.

■Lock/unlock operation control unit 404 of the secret operation device 400
In this case, operating the lock operation switch 404a is electrically equivalent to operating the lock operation switch 10a of the electric lock operation controller 1', and the electric lock 200 is unlocked by the same operation.

As described above, in the electric lock operation controller 1' of the present invention, in addition to the functions of the above-mentioned electric lock operation controller 1 with a simple configuration, the secret operation device 400 can be connected. In addition to being easy to manufacture and improving operability, the internal configuration is simple, so it is possible to realize cost savings and improve reliability.

The lock/unlock operation section 10 of the electric lock operation controllers 1 and 1' described above is a lock/unlock operation switch 10a.

lOb and diode D3. Although the configuration is such that the thyristors and D4 are connected in series, the configuration is not limited to this, and it is also possible to configure thyristors connected in antiparallel whose conduction is controlled by another control i# signal.

Further, the electric lock operation controller 1.1' and the additional locking/unlocking operation control section 2 are each shown as having a lock status display section 11.21, but this lock status display section is not provided. It is also possible to have a configuration in which there is no such thing.

According to the present invention described in [Effects of the Invention], it is possible to control the locking and unlocking of existing electric locks with a simple configuration, and to display the lock status, thereby realizing cost savings. death,
It is possible to provide an electric lock operation controller with improved manufacturability and reliability.

According to the present invention described in claim 2, in addition to the effect of claim 1, an additional locking/unlocking operation unit can be connected.
It is possible to provide an electric lock operation controller that can configure an electric lock/unlock system with improved operability.

According to the present invention as set forth in claim 3, in addition to the effects of claim 1, there is provided an electric lock operation controller that can configure an electric lock/unlock system with further improved operability because a secret operation device can be connected. can.

According to the present invention as set forth in claim 4, the electric lock can be remotely operated by connecting to the electric lock operation controller with a simple configuration, thereby improving operability and realizing cost savings. It is possible to provide an additional lock/unlock operation unit that can configure an electric lock/unlock system with improved reliability.

[Brief explanation of drawings]

FIG. 1 is a system configuration diagram of an electric lock/unlock system configured using the electric lock operation controller according to claim 2 and the lock/unlock operation unit for expansion according to claim 4, and FIG. A system configuration diagram of an electric lock/unlock system constructed using the electric lock operation controller described in claim 3 and the additional lock/unlock operation unit described in claim 4, FIG. 3 shows the configuration of a conventional electric lock/unlock system. This is an example diagram. [Explanation of symbols] 1.1'...Electric lock operation controller 10...Lock/unlock operation section 10a...Lock operation switch Job...Unlock operation switch 11...Lock status display section 11a. ...Lock indicator light 11b...Unlock indicator light 109...Power circuit section 110...Password setting section TU...Unit connection terminal 2...Lock/unlock operation unit 20...Lock/unlock operation Part 20a...Lock operation switch 20b...Unlock operation switch 21...Lock status display section 21a...Lock indicator light 21b...Unlock indicator lights D3 to D6...Rectifier element (diode) R...Current limiting resistor 200...Electric lock 300...AC power supply unit

Claims (4)

[Claims] (1) It has a lock/unlock operation section and a lock status display section, and receives power supplied from a separately placed AC power supply unit, and locks/unlocks the lock according to the operation of the lock/unlock operation section. The electric lock is configured to switch the energizing polarity depending on the state of the lock, and is output to the electric lock side to perform locking and unlocking operations, and the locking and unlocking status of the electric lock side is displayed on the lock status display section. In the electric lock operation controller, the lock/unlock operation section is inserted in series with the AC power supply supplied to the electric lock side, and includes a rectifier element and a lock operation switch connected in series, and a rectifier element and a lock operation switch connected in series. and an unlocking operation switch connected in series are connected in parallel so that the energizing directions of the respective rectifying elements are opposite to each other, and the lock status display section is connected in parallel to the locking/unlocking operation section. A lock indicator lamp and an unlock indicator lamp are connected in parallel so that the energizing direction is opposite to each other, and a current limiting resistor is connected in series to the lock indicator lamp and unlock indicator lamp. An electric lock operation controller characterized by: (2) The locking/unlocking operation section further includes unit connection terminals at both ends thereof for connecting an additional locking/unlocking operation unit that performs locking/unlocking by remote control. Electric lock operation controller. (3) further comprising: a power supply circuit section for rectifying and smoothing the AC power received at the AC power terminal to obtain a stabilized DC power; and a password setting section for presetting a password; The DC power obtained by the power supply circuit section and the password set by the password setting section are output to the separately installed secret operating device, while locking and unlocking signals transmitted from the secret operating device are output. The electric lock operation controller according to claim 1, wherein: is inputted to both ends of the lock/unlock operation section. (4) A series connection of a rectifier element and a lock operation switch and a series connection of a rectifier element and an unlock operation switch are connected in parallel so that the energization directions of each rectifier element are opposite to each other. A locking/unlocking operation unit consisting of a locking/unlocking operation unit, a locking indicator lamp and an unlocking indicator lamp that supply current only in the forward direction to display an indication are connected in parallel so that the energizing directions are opposite to each other, and a current limiting resistor is connected in series with this. 1. A locking/unlocking operation unit for expansion, comprising: a lock status display section connected in parallel to the locking/unlocking operation section;