JPS6343307B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cryptographic operation switching device for elevators, and in particular, a cryptographic operation switching device suitable for allowing only those who are aware of the elevator operation pattern switching operation method to switch. It is related to.

There are various operating patterns depending on the purpose, but if we take a single elevator as an example, in general office buildings, department stores, etc., there are automatic shared operation and driver-assisted shared operation, and in hospitals, etc., there is general There are automatic ride-sharing operations for transporting passengers and dedicated operations for transporting stretchers, etc.

Conventionally, to prevent abuse by general passengers, switching between these operating patterns was done by a switch in a lock box installed on the operating panel inside the elevator car, or by a key switch installed on the surface of the operating panel. Generally, this was done using a switch that could only be operated by turning.

However, according to these methods, only a person who has the key can switch the driving pattern, which is inconvenient for a person who does not have the key and wants to temporarily change the driving pattern. In particular, hospital elevators may be in trouble when an emergency patient emerges and the operation pattern needs to be switched to dedicated operation.

The present invention has been made in view of the above, and its purpose is to provide an encrypted operation switching device for elevators that allows the operation pattern to be easily switched if the operator knows the operation method for switching the elevator operation pattern. It's about doing.

A feature of the present invention is that when the hall call button or destination button is operated intermittently multiple times within a predetermined long period of time, it is recognized as a coded operation and the driving pattern is automatically switched. The feature is that the elevator is configured to return to the previous operating pattern on the condition that the elevator is stopped and the cryptographic operation is recognized again.

The present invention will be explained in detail below using the embodiments shown in FIGS. 1 to 5.

FIG. 1 is a step diagram for explaining one embodiment of the cryptographic operation of the hall call button necessary for the operation of the apparatus of the present invention. First, the first
In the step, the button is held down for a period of time t ₁ to _{t 2} (1 to 3 seconds). Next, in the second step indicated by 2, the time t ₃ to _{t 4} (0.1 to ₁
In the third step indicated by 3, the button is released for a relatively short time t ₅ to t ₆ (0.5 to 1.5 seconds).
Press and hold the button again for a few seconds). Next, in the fourth step indicated by 4, the time t ₃ to t ₄ is the same as the second step.
In the next fifth step indicated by 5, the button is held down again for a period of time _t5 to _t6 , similar to the third step. The sixth step indicated by 6 is the step at which the cryptographic operation ends when the button is released. Above 1~
The first to fifth steps indicated by 5 are predetermined as cryptographic operations.

FIGS. 2 and 3 are circuit diagrams showing one embodiment of the device of the present invention. In Figures 2 and 3, _1B is a hall button switch, 1P is a hall button check relay, and _1P1 to _1P5 are its normally open contacts.
1P ₆ to 1P ₉ are the normally closed contacts, 1A to 1E are the 1st to 5th step registration relays, respectively, 1A ₁ to 1A ₃ are the normally open contacts of relay 1A, and 1B ₁
~1B ₃ is the normally open contact of relay 1B, 1B ₄ ~ 1B ₅ is the normally closed contact of relay 1B, 1C ₁ and 1C ₂ are the relay 1
Normally open contacts of C, 1D ₁ and 1D ₂ are normally open contacts of relay 1D, 1E ₁ to 1E ₃ are normally open contacts of relay 1E, 1
F is the cryptographic operation completion registration relay (6th step registration relay), 1F ₁ to 1F ₃ are its normally open contacts, F
is an operation pattern switching relay, _F1 to _F4 , _F9 are normally open contacts, _F5 to _F8 are normally closed contacts, 1H
is the hall call registration relay, 1H ₁ is its normally open contact, 1TA to 1TF are the timers for counting t ₁ hour to t ₆ hours, respectively, 1TA ₁ is the normally open contact of timer 1TA, 1TB ₁ and 1TB ₂ are the timers 1TB normally closed contacts, 1TC ₁ and 1TC ₂ are normally open contacts of timer 1TC, 1TD ₁ to 1TD ₄ are normally closed contacts of timer 1TD, 1TE ₁ and 1TE ₂ are normally open contacts of timer 1TE,
1TF ₁ is the normally open contact of timer 1TF, 1TF ₂ ~1
TF ₇ is the normally closed contact of timer 1TF, TG is the backup timer for canceling the operation pattern, TG ₁ is the normally open contact for these, TH is the timing timer when switching the operation pattern, and TH ₁ and TH ₂ are the normally closed contacts of the timer 1TF. Open contact, G is the code operation completion registration relay when the operation pattern is canceled (6th step relay when canceling), G ₁ ,
G ₂ is its normally open contact, R is the operation pattern release command relay, R ₁ is their normally closed contact, L is the switched dedicated operation pattern indicator, NDPS is the normal pattern circuit, ADPS is the dedicated operation pattern circuit, 1
FL ₁ is a normally open contact of a car position relay (not shown), 1FL ₂ is a normally closed contact of the above relay, P and N are power supplies, and these are connected as shown in the figure.

Note that the circuit diagrams shown in Figures 2 and 3 only show _one button switch, but if you want to switch or cancel from any floor,
Relay 1P, 1A to 1F, 1H and timer 1
It is sufficient to provide circuits equivalent to TA to 1TF for the number of button switches. Also, regarding relay F, as shown in 1F ₂ ...NF ₂ , relays 1E, 1P
It is sufficient to connect the contacts for other floors corresponding to the above in parallel.

Next, the operation of the circuit will be explained. When hall button switch 1 _B is pressed, relay 1P turns on.
As a result, the contact 1P ₁ is closed, the hall call registration relay 1H is turned on, the contact 1H ₁ is closed, the relay 1H is self-held, and the call is registered. Also, relay 1
When P is turned on, its contacts 1P ₂ and 1P ₃ are closed,
Timers 1TA and 1TB start counting.
If button switch 1 _B is held down for more than time t ₁ ,
Timer 1TA operates, contact _1TA1 closes, the first step registration relay turns on, and its contact 1
It is self-maintained by the closed circuit of _A1 . If button switch _1B is released within time _t2 , relay 1P is turned off, so timer 1TB returns without operating. On the other hand, the timers 1TC and 1TD start counting by closing the contacts 1A ₂ and 1A ₃ and closing the contacts 1P ₇ and 1P ₈ by turning off the relay 1P.
If the button switch _1B is kept released for more than time _t3 , the timer 1TC operates and the contact 1TC1 is closed, so the second step registration relay _1B is turned on and is self-maintained by closing the contact _1B1 . If button switch _1B is pressed again within time _t4 , relay 1P is turned on, contact _1P8 is opened, timer 1TD is restored without operating, and at the same time contacts _1B2 , _1B3 are closed and contacts _1P4 , Timers 1TE and 1TF start counting due to the closing of _1P5 . When the button switch _1B is pressed for a period of time t or more, the timer 1TE is activated and the contact _1TE1 is closed, so the third step registration relay 1C is turned on and is self-maintained by closing the contact _1C1 . If button switch _1B is released within time _t6 , relay 1P is turned off and contact _1P5 is opened, so timer 1TF returns without operating. At the same time, the contacts 1P ₇ and 1P ₈ are closed again, so the timers 1TC and 1TD start counting. If button switch _1B is left off for more than time _t3 , timer 1TC operates and contacts 1TC ₂ are closed, and since relay 1C is turned on, contacts 1C ₂ are closed, so the 4th step registration relay 1D turns on and is self-maintained by closing contact 1D ₁ . If button switch _1B is pressed again within time _t4 , timer 1TD will return without operating, and at the same time relay 1P will turn on, contacts 1P ₄ and 1P ₅ will close, so timers 1TE and 1TF will start counting again. do. If button switch 1 _B is pressed and held for more than time t ₅ , timer 1 TE will operate and contact 1
Since TE ₂ is closed and contact 1D ₂ is closed due to relay 1D being turned on, fifth step registration relay 1E is turned on and self-maintained by closing contact 1E ₁ . If button switch _1B is released within time _t6 , timer 1TF returns without operating, and at the same time relay 1P turns off. This means that the series of operations was completed within the specified time,
Relay 1F is turned on, self-held by closing contact _1F1 , and registration of completion of cryptographic operation (sixth step) is performed.

The above explanation is the operation when button step 1 _B is operated normally within the specified time.
If the operation exceeds the specified time, timer 1
Either TB, 1TD, or 1TF operates, and the registration of the previous step operation is canceled. Therefore, the operation must be restarted from the first step. For example, if button switch _1B is pressed and held for more than time _t6 in the fifth step, timer 1TF operates, and contacts 1TF ₂ to 1
TF ₅ is opened, relays 1A, 1B, 1C, and 1E are turned off, and as relay 1C is turned off, contact 1C ₂ is opened, so relay 1D is also turned off. Therefore, all registrations in the first to fifth steps are cancelled. Also, while button switch _1B is kept pressed, timer 1TF is self-maintained by the closing of contact 1TF ₁ , so timer 1
TA and 1TB do not start counting due to opening of contacts 1TF ₆ and 1TF ₇ . At this point, when button switch _1B is released, timer 1TF returns.
Everything returns to its original state and can be operated again.

Next, the explanation returns to the point in time when the cryptographic operation is completed by normal operation. When relay 1F turns on, contact 1F ₂ closes, so relay F turns on and contact F ₈ opens,
Contact _F9 closes and switches from the normal operation pattern circuit NDPS to the dedicated operation pattern circuit ADPS. Then, the dedicated operation pattern indicator L, which indicates that the dedicated operation pattern circuit ADPS has been switched, is a contact point.
Lights up when F ₄ is closed. In addition, the 1st to 5th step registration relays 1A to 1E are activated by opening contact _F6 .
turns off. Further, the hall button check relay 1P is prevented from being turned on even if the contact _F5 is opened and a hall button switch other than the floor where the elevator stops (the floor where the contact _1FL1 is closed) is operated. Then, a series of operations such as canceling and invalidating the hall call registration relays on floors other than the encryption operation floor (the floor where relay 1F is turned on) are performed.

In addition, when relay F is turned on, contact _F3 is closed, and the timing timer when switching operation patterns is activated.
After TH starts counting and timer TH operates (about 0.1 seconds later), contact TH ₁ closes, so
The circuits of relays 1A to 1E are enabled to prepare for re-encryption operation when the dedicated operation pattern is released. On the other hand, the timer TG also starts counting when the contact _F2 is closed, and checks whether it has started operating within a certain period of time (about 3 minutes). Note that when dedicated operation starts, the contact OP opens, so the timer TG
stops counting, and it can be determined from the count value whether or not operation has started within a certain period of time.

Next, an explanation will be given of the operation when canceling the exclusive operation pattern after the dedicated operation pattern has been used. Since the hall button check relay 1P for the elevator stopping floor is enabled, register the 1st to 5th step operations by performing a series of operations within the specified time as explained when switching the button switch _1B above. Relay 1A~
1E turns on. If button switch _1B is released within time _t6 after relay 1E is turned on, relay 1P is turned off, and timer 1TE is returned without operating, and at the same time, relay G switches between contacts 1E ₃ and 1P ₉ . Closed (Contact TH ₂ is closed.)
It turns on and is self-maintained by closing contact _G1 . Therefore, the encryption operation is completed at the time of release (6th
Step). When relay G is turned on, relay R is turned on by closing contact _G2 .
When relay R is turned on, contact _R1 is opened and relays 1A to 1F and F are turned off. When relay F is turned off, the exclusive operation pattern is canceled, the original normal operation pattern is restored, and the exclusive operation pattern indicator light L goes out.

Furthermore, since the contact _F2 is opened by turning off the relay F, the timer TG stops counting and returns, and at the same time, the timing timer TH also returns by opening the contact _F3 . When timer TH is turned off, relay G is turned off by opening contact TH ₂ , and then relay R is also turned off, completely returning to the state before operation.

In addition, if you forget to operate the code on button switch _1B after the elevator has been used, the elevator will continue to be stopped, and if this state continues for a certain period of time (approximately 3 minutes), timer TG will operate and contact TG ₁ will be activated. Relay R is turned on by the closed circuit, and the series of release operations described above are performed.

According to the embodiment of the present invention described above, since it operates as described above, it has the following effects.

(1) Hall button switch 1 Switches to the dedicated operation pattern only when a person who knows the code operation method of _B performs a series of operations within a specified time, so
This can prevent abuse by general passengers. Further, since no special operating equipment is required, switching in an emergency is easy.

(2) Switching at the stage of calling a car and canceling hall calls on other floors,
To enable early switching in case of emergency and to quickly call for a car.

(3) After it has been used, it can be easily released using the coded operation of Hall Button Switch _1B at the boarding area.
If you forget to perform the code operation after use, it will be automatically canceled after a predetermined period of time, so the dedicated driving pattern will not be unnecessarily long, and the normal driving service can be improved.

4 and 5 are flowcharts of the above-mentioned series of operations in the present invention. Some recent elevators are equipped with a microcomputer,
In such elevators, by programming based on the flowcharts shown in Figures 4 and 5, the circuit diagrams shown in Figures 2 and 3 can be programmed without using relays or timers. It is possible to perform a similar operation. In addition,
Descriptions of FIGS. 4 and 5 will be omitted here.

In addition, in the above explanation, we have explained the case where the hall button switch is operated in a coded manner, but even if this is changed to the coded operation of the destination button in the car, the same operation can be performed and the same effect can be obtained. .

As described above, according to the present invention, if the driving pattern switching operation method is recognized, the driving pattern can be easily switched, which is advantageous when switching the driving pattern in an emergency. In addition, after switching the operating pattern, the previous operating pattern is returned to the elevator on the condition that the elevator is stopped due to being used up and the coded operation is recognized again, so it is possible to return to the previous operating pattern multiple times. It also has the effect that there is no need to perform an operation for dedicated operation each time when performing dedicated operation each time.

[Brief explanation of the drawing]

FIG. 1 is a step diagram for explaining one embodiment of the cryptographic operation necessary for the operation of the device of the present invention, and FIG.
3 are circuit diagrams showing one embodiment of the circuit of the device of the present invention, and FIGS. 4 and 5 are flowcharts showing the operation of the device of the present invention. 1 to 6...1st to 2nd steps, _1B ...Hall button switch, 1P...Hall button check relay, 1A to 1F...1st to 6th step registration relay, F...operation pattern switching relay, 1H
...Hall call registration relay, 1TA~1TF...t ₁
~t _6- hour count timer, TG...backup timer for driving pattern cancellation, TH...timing timer when switching driving patterns, G...cipher operation completion registration relay when driving pattern cancellation, R
...Driving pattern release command relay, NDPS...Normal driving pattern circuit, ADPS...Dedicated driving pattern circuit, L...Dedicated driving pattern indicator light.

Claims (1)

[Scope of Claims] 1. In an elevator having at least two operation patterns, the elevator is equipped with a hall call button provided in an elevator hall on each floor and a destination button provided in the car, and the hall call button or the destination button is Means for recognizing a plurality of intermittent operations within a predetermined long period of time as a cryptographic operation and switching from said one operation pattern to the other operation pattern, and when the elevator is stopped after switching the operation pattern. A cryptographic operation switching device for an elevator, characterized in that the device further comprises means for returning the operation pattern to the operation pattern before switching when the cryptographic operation is recognized again. 2. The encrypted operation switching device for an elevator according to claim 1, further comprising means for displaying that the operation pattern has been switched by the switching means. 3. The elevator according to claim 1, further comprising means for canceling the registration of a hall call for a floor other than the code operated floor when the switching means recognizes the code operation. Encrypted operation switching device.