JP2583110B2 - Electronic control unit - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic control device, and more particularly, to an electronic control device that controls opening and closing of doors of a hotel room, a locker, and a rent-a-car where a user changes.

2. Description of the Related Art In recent years, a card system that uses a magnetic card or a punch card instead of a metal key to lock and unlock a door lock device has been proposed. Also, without using a key or card to carry, by operating a plurality of switches in a predetermined order, input the same number as the number registered in advance,
A keyless entry system for unlocking an electronic lock has been proposed.

For example, as disclosed in Japanese Patent Publication No. 58-14910, a system for unlocking a door using a card is known. Also, JP-A-56-105076 and JP-B-59-32632
As shown in the publication, an electronic lock that generates an unlock signal by operating a plurality of switches in a predetermined order is known.

However, in a lock control system using a key or a card, there is a risk that the key or the card may be stolen by another person. In addition, in hotels, there is an annoyance of keeping keys or cards at the front desk when going out.

On the other hand, in a keyless entry system using a plurality of key switches, the password must be changed to a registration number that cannot be distinguished from the previous user and others every time the user is changed from the viewpoint of theft and crime prevention. When the registration number is changed by the central control device installed at the front of the hotel, an online system must be established by electrically connecting the central control device at the front and the lock device in each room. In view of this, an electronic control device that stores a guest code number that can be progressively stored and advances the guest code number each time a user changes is proposed. In this electronic control device, a plurality of switches are arranged in a predetermined order. Unless the lock control device is operated, the guest code number cannot be progressively operated, which is inconvenient in management.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electronic control device capable of registering a user code number by inputting a guest code number that can be progressively performed and progressively progressing the guest code number by a remote control code.

Means for Solving the Problems The electronic control device according to the present invention includes a plurality of switches (1
1), a guest code storage means (43) for storing a guest code number, and a number input by a plurality of switches (11) and a guest code number stored in the guest code storage means (43), Guest code comparing means (40) for transmitting a coincidence signal when they match, and user code storage for storing an arbitrary user code number inputted by a plurality of switches (11) according to the coincidence signal of the guest code comparing means (40) Means (51) for comparing a user code number stored in a user code storage means (51) with a number input by a plurality of switches (11), and generating an unlock signal when they match. Means (50) and a lock control device (15) activated by an unlock signal. The electronic control unit includes a receiving unit (14) for receiving an electromagnetic wave including a code signal generated by the remote operation device, a remote operation code storage unit (23) for storing a remote operation code, and a signal received by the receiving unit. A remote operation code comparing means (24) for generating a coincidence signal when the code signal matches the code signal stored in the remote operation code storage means (23); The guest code storage means (43) stores a plurality of guest code numbers that can be progressive, and progressively advances the guest code number to the next guest code number based on the coincidence signal of the remote control code comparison means (24).

A guest code accumulating means (60) for generating a progressive signal for accumulating the guest code number based on the coincidence signal of the remote control code comparing means (24) is provided. The guest code comparing means (40) compares the number input by the plurality of switches (11) with the guest code number stored in the guest code storage means (43), and the input number matches the guest code number. When this is done, a coincidence signal (O ₁ ) is sent out and a signal (O ₂ ) for making the guest code storage means (43) progressive is generated.

When the administrator operates the remote control device, an electromagnetic wave including a code signal is generated. Receiving the output of the receiving means (14) receiving this electromagnetic wave, the remote control code comparing means (24)
Is compared with the code signal stored in the remote control code storage means (23). When the two match, the remote control code comparing means (24) outputs a match signal to the guest code accumulating means (60).
To generate a progressive signal in the guest code progressive means (60).

The guest code number of the guest code storage means (43) is advanced by the progress signal of the guest code progression means (60), and a new guest code number is set in the guest code storage means (43). When the input numbers from the plurality of switches (11) match the new guest code numbers, a match signal is output from the guest code comparison means (40). With this coincidence signal, the user code storage means (51) stores an arbitrary number newly input by the operation of the plurality of switches (11) as a user code number. Thereafter, when the number input by operating the plurality of switches (11) matches the stored user code number, an unlock signal is sent from the user code comparison means (50) to the lock control device (15). .

The user code number registered in the user code storage means (51) is used for unlocking the lock control device. However, the guest code used for storing the user code number can no longer be used. For this reason, even if the user loses the card describing the guest code number or is read by another person, the other person cannot unlock the lock device. Therefore, after check-in, unlocking and entering the room are impossible unless the user code number is used. In this case, a new user code number can be registered only after the guest code progressive means (60) generates a progressive signal.

An embodiment of an electronic control device according to the present invention applied to a hotel room door will be described below with reference to FIGS.

As shown in FIG. 1 (a), on the door of each room, there are provided a plurality of switches 11, on which numbers 0 to 9 are displayed, a check-in switch C, a start switch ST, and a light receiving sensor (receiving means) 14 by infrared rays. Is attached. As shown in FIG. 1B, the keyboard 10 is a control unit composed of a one-chip microcomputer.
12 is electrically connected.

The control unit 12 has a plurality of switches 11, a guest code initial setting switch 13, a user code clear switch 63, and a plurality of input ports to which the light receiving sensor 14 is connected.
A battery V is connected to the control unit 12 as a power supply. The output port of the control unit 12 is connected to a lock control device 15 having an actuator constituted by a solenoid or a motor, a buzzer 16, and a display 17. When the buzzer 16 presses any of the switches 11,
Generates a sound confirming the pressed state. The display 17 is, for example, a light emitting diode that is activated when the guest code numbers match.

The control unit 12 compares the signal received by the light receiving sensor 14 of the timer means, the remote control code storage means, and the light receiving sensor 14 of the receiving means with the code signal stored in the remote control code storage means, and generates a match signal when the codes match. Remote operation code comparing means, a guest code accumulating means for generating a progressive signal for accumulating a guest code number based on a coincidence signal of the remote operation code comparing means, and storing a guest code number and receiving a progressive signal when the progressive signal is received. The guest code storage means which progresses to the guest code number of the guest code, and the guest code which compares the number input by the plurality of switches 11 with the guest code number stored in the guest code storage means and sends out a match signal when they match. An arbitrary user code number input by a plurality of switches 11 is stored by the matching signal of the comparing means and the guest code comparing means. User code storage means, and a user code comparison means for comparing a user code number stored in the user code storage means with a number input by a plurality of switches 11 and generating an unlock signal when they match. . The lock control device 15 is activated by the unlock signal of the user code comparing means.

As shown in FIG. 1B, the control unit 12 constituted by a one-chip microcomputer is operated according to the operation sequence shown in FIG.

The hotel user who checks in receives a card with the room number, the number of days stayed and the guest code number printed at the front desk. In step S1, a user inputs a check-in switch C and a start switch ST of a door of a designated room or a keyboard 10 provided adjacent to the door, and operates a plurality of switches 11 in a predetermined order. Then, enter the same number as the guest code number displayed on the passed card. At this time, the buzzer 16 generates an operation sound each time the plurality of switches 11 are pressed.

A large number of guest code numbers determined by, for example, a random number table are stored in advance in the guest code storage means in the control unit 12, and each guest code number is programmed to be sequentially output in a predetermined order. The guest code numbers and their order are the same as the storage contents of the storage means of the card issuing machine provided at the front. The guest code number stored in the guest code storage unit is supplied to the guest code comparison unit.

When the guest code number is input in step S1 of FIG. 2, the process proceeds to step S2, and the control unit 12 determines whether or not a user code number with an arbitrary password has not been registered. If the control unit 12 determines in step S2 that there is no user code registration, the process proceeds to step S3. The guest code comparison means determines whether or not the numbers input by the plurality of switches 11 in step S1 match the guest code numbers.
When they match, a match signal is generated from the guest code comparison means, and the match is displayed on the display 17 as in step S4. As a result, the user code storage unit enters a write mode in which the user code can be stored by input. When the user code storage means is in a storable state and an arbitrary number is input by the plurality of switches 11 in step S5, the input number is stored in the user code storage means as a user code number (step S6). When the user code number is stored in the user code storage means, an unlock signal is generated from the user code comparison means (step S7). In response to the unlock signal, the actuator of the lock control device 15 is operated to unlock the door, unlock is displayed on the display 17 (step S8), and the operation sequence returns to the start.

In step S3, when the number input by the plurality of switches 11 does not match the guest code number,
Proceeding to S10, the guest code comparison means compares the input number with the guest code number determined from the random number table. If they do not match, the process proceeds to step S20, and if they do match, the storage contents of the guest code storage means are advanced by the guest code storage means. Therefore, a new guest code number is switched by the guest code storage means instead of the existing guest code number (step
S11). At this time, the user code number used for the previous user is deleted (step S12).

On the other hand, when the user locks the door and goes out after check-in and enters the room again, there is no need to input the guest code number again, and the registered user code number is input by the plurality of switches 11. The entered number is compared with the registered user code number by the user code comparing means (step S2), and when they match, the process proceeds from step S9 to S7 to output an unlock signal.

FIG. 4 shows a block diagram of the remote control device 20. The remote control device 20 includes a transmission control circuit 1 composed of a one-chip microcomputer, a storage (ROM) 2 connected to the transmission control circuit 1, and an input port I of the transmission control circuit 1 via a trigger circuit 3. a switch 4 and the battery 5 connected Te, the transistor 6 having a base connected to the output port O ₁ of the transmit control circuits 1, light-emitting diodes for infrared firing connected between the collector and ground of transistor 6 7, a display light emitting diode 8 connected between the output port O ₂ of the transmission control circuit 1 and the memory 2.
Having. When the switch 4 is turned on, an infrared signal including a predetermined remote control code is generated from the infrared emitting light emitting diode 7. For example, the hotel manager activates the remote control device 20 as a master key in the room after the user checks out. The remote control device 20 is a portable light-emitting device using infrared rays, and can emit and unlock infrared rays including a specific code number. In this case, if there is no input from the plurality of switches 11 in step S1, the operation sequence proceeds to step 20, and the unit 11 starts the start switch ST.
It is determined whether or not is turned on. When the administrator presses the start switch ST in the keyboard 10 of the locked door, the timer means of the control unit 12 causes the light receiving sensor 14 to be pressed.
Is energized for a certain period of time to enter a receivable state (step S2
1). The reason why the fixed time is set is to reduce the power consumption and to prevent the circuit from malfunctioning due to unnecessary operation of a switch provided in the room. Light receiving sensor
When the switch 4 of the remote control device 20 is pressed during the operation of the predetermined time period 14 and the light emitting diode 7 emits light, an infrared signal including a predetermined code number is generated. This light emission signal is detected by the light receiving sensor 14 (step S22), and the converted electric signal is input to the control unit 12. Controller unit
The remote control code comparing means in 12 compares the input electric signal with a remote control code (master key code) previously stored in the remote control code storage means and determines whether or not they match (step S12). S23). If they match, the remote control code comparison means sends the match signal as an unlock signal to the lock control device 15 (step S24).

At the same time, if the user code clear switch 63 is turned on within a certain period of time after the start operation by the start switch ST (step S25), the user code number is cleared (step S26), and then the guest code number used by the user Is automatically advanced to the next code number (step S27). In step S22, when a signal from the remote control device 20 is not received within a certain time during which the timer means operates, or when the user code clear switch 63 is not turned on within a certain time during which the timer means operates in step S25, go to step S28. move on.

When the guest code number is unknown or the progressive code number is initialized by use over time, in step S28, when the guest code initial setting switch 13 is turned on, the process proceeds to step S29, the guest code number is reset to an initial value, The timer means is cleared. If the guest code initialization switch 13 is not turned on in step S28,
Proceeding to step S30, when the timer counts a predetermined time, the process proceeds to step S31 to turn off the light receiving sensor. If the time has not elapsed in step S30, the process returns to step S22.

If the card with the guest code number given at the front desk is lost when entering the room for the first time after check-in, the user requests a reissue of the card displaying the guest code number at the front desk. Even if the lost card is handed over to another person and another person enters the room using the guest card number, the guest code number in the guest code storage means is advanced to the next guest code number by this entry. . Therefore, after the user enters the room using the reissued next guest code number, the guest code number of the lost card becomes unusable. The guest code number is
The progress is made in parallel by the guest code storage means on the room side and the card issuing machine on the front side.

Next, FIG. 3 shows an example in which the control unit 12 is constituted by a discrete circuit.

The plurality of switches 11 are connected from a BCD converter 30 for converting a binary signal to a guest code comparator (guest code comparing unit) 40 and a user code comparator (user code comparing unit) 50. The output of the BCD converter 30 is connected to an address counter 42 and a guest code storage (guest code storage unit) 43 via an OR gate 41. The output of the OR gate 41 is a buzzer
The operation sound of the buzzer 16 is generated every time the switch 11 is pressed. Also, retrigger multivibrator
At 48, each input signal of the switch 11 is held for a certain time,
The valid time until the next switch 11 is pressed is counted.
When a predetermined time or more elapses before one switch 11 is pressed, the output of the retrigger multivibrator 48 stops, the one-shot multivibrator 44 generates an output, and the address counter 42 is reset through the OR gate 45. The counter 46 resets the address counter 42 and other counters through the OR gate 45 when counting a predetermined number of digits such as 5 or 7 digits.

Input signals from multiple switches 11 are address counters
An address signal is sent from the 42 to the guest code storage 43. In the guest code storage 43, a plurality of guest code numbers, for example, of five digits are stored. These guest code numbers are accumulated by a guest code accumulation circuit 60 as guest code accumulation means via a counter 58. The guest code storage 43 is connected to the guest code comparator 40. Guest code storage unit 43 sends the guest code number to the guest code comparator 40, the guest code comparator 40, when the input number by the guest code number and a plurality of switches 11 are matched, the counter output from the output terminal O ₁ Send to 47. When the match signal of the number of digits before the guest code number is counted by the counter 47, the address counter 42 is reset through the OR gate 49. In the guest code comparator 40, a guest code number and a plurality of switches are provided.
When the input number by 11 matches, and sends the output to the counter 58 from the output terminal O _2.

When a signal is input to the guest card comparator 40 by the operation of the plurality of switches 11 by the user, the guest code storage unit 43 stores the stored guest code number in the guest code comparator 40 by the address signal of the address counter 42. Supply. For this reason, the guest code comparator 40 has multiple switches.
The number input by 11 is compared with the number stored in the guest code memory 43, and the number is counted by the counter 47 every time the number matches, and when the total number of digits of the guest code number matches, the counter 47 matches. A signal is sent out and displayed on the display 17 in agreement. Further, the address counter 42 is reset.

When a user code number to the user code in the memory 51 is stored, the user code memory 51 produces an output from the output terminal O ₁ of the high level. Therefore, the gate control circuit 70
Then, the gate circuit 71 becomes conductive, the output of the counter 47 is supplied to the set terminal of the R / S flip-flop 73 through the OR gate 74, and as a result, the R / S flip-flop 73 is switched to the set state. When the R / S flip-flop 73 is set, a high-level signal is applied to the gate circuit from the Q terminal.
Since the voltage is applied to the terminal 52 and the W / R terminal of the user code memory 51, the gate circuit 52 is switched to the conductive state, and at the same time, the user code memory 51 is switched to the write mode. When an arbitrary number is set by the plurality of switches 11 in this state, the number is stored in the user code storage 51 by the address signal of the address counter 42. When all the predetermined digits are stored in the user code storage 51, the output terminal O ₁
Is switched from a high level to a low level.
At this point, the one-shot multivibrator 72 generates an output, the flip-flop 73 is reset, and the output of the Q terminal is switched to a low level. Accordingly, the user code memory 51 is switched to the read mode, and the gate circuit 52 is switched to the non-conductive state. Further, an input is given to the lock control device 15 through the OR gate 55 by an output of the one-shot multivibrator 72, and the lock control device 15 is operated. Therefore, the door can be unlocked. Thereafter, the door can be unlocked only by inputting the user code number. At the same time, the display 17 operates and the address counter 42 is reset.

The operation of the switches 11 causes the user code comparator 50 to operate.
Is given an input number to the user code storage 51 through the address counter 42.
Therefore, the user code number read from the user code storage unit 51 is given to the user code comparator 50. In the user code comparator 50, an output is generated every time each digit matches, and this output is counted by the counter 53. When all the digits match, the output of the counter 53 is sent to the lock control device 15 through the OR gate 55 to be unlocked. At this time, the counter
The counter 53 is reset through the OR gate 54 by the output of 53. When the lock control device 15 is operated, its output is given to the display 17 to display unlocking.

By using the portable infrared remote control device 20 as a master key, a room checked out by a user can be unlocked and a maid or the like can enter the room. Also, the guest code number can be advanced based on this unlocking operation.

When the start switch ST is pressed, the light receiving sensor 14 is energized for a fixed time (for example, three minutes) set by a timer (timer means) 21. At this time, when the infrared remote control device 20 is operated to emit light, a light emission signal including a predetermined remote control code is received by the light receiving sensor 14. The remote control code received by the light receiving sensor 14 is amplified by an amplifier 22 and then transmitted to a comparator (remote control code comparing means) 24 and a read code detection circuit 25. Lead code detection circuit
Reference numeral 25 has a function of detecting a lead code arranged at the beginning of a signal supplied from the amplifier 22 and activating a storage unit (remote operation code storage means) 23.

The comparator 24 is provided with a signal output from the amplifier 22 and a memory 23.
Is compared with a predetermined code signal stored in advance. When these signals match, comparator 24 generates a match signal,
An unlock signal is given to the lock control device 15 through the OR gate 55. At the same time, the match signal of the comparator 24 is sent to the AND gate 67 in the guest code accumulator circuit 60. At this time, when the user code clear switch 63 is turned on, the AN
An output is generated at the D gate 67 and supplied to the progressive terminal (+) of the guest code storage 43 through the OR gate 66. Therefore, the guest code number in the guest code storage unit 43 is incremented. The output of the OR gate 66 is supplied to the OR gate 45 via the OR gate 80.
And supplied to the reset terminal of the user code storage 51,
The address counter 42 and the user code storage 51 are reset. Further, when the code number entered from a plurality of switches 11 matches the guest code number stored in the guest code storage unit 43, output to the output terminal O ₂ of the guest code comparator 40 is generated, count the output The guest code number stored in the guest code storage 43 is incremented by the output of the counter 58 generated by the counter 58 counting a predetermined number of outputs (digit number).

Further, the guest code accumulation circuit 60 is provided with a guest code initialization switch 13 for initializing a guest code number. The guest code initial setting switch 13 is connected to the input terminal of the AND gate 65 together with the timer 62. The output of the AND gate 65 is connected to the reset terminal R of the guest code storage 43. Therefore, when the guest code initial setting switch 13 is turned on during a predetermined time during which the timer 62 is generating an output, an output is generated from the AND gate 65, and the guest code in the guest code storage 43 is output via the OR gate 69. The code number is reset to the initial value of the progressive.

When the guest code initialization switch 13 is turned on while the output is being generated from the comparator 24, the AND gate 6
An output is generated from 8 and the guest code memory 43 is reset to the initial value through the OR gate 69.

The guest code progression circuit 60 also includes an unlock switch 61, which is unlocked by the administrator using a metal master key.
Is provided. Timer is activated when unlock switch 61 is turned on.
62 is activated, and the AND gate 6 is activated for a predetermined time, for example, 3 minutes.
5 is provided with the timer output. If the user code clear switch 63 is turned on within this predetermined time, the AND gate 64
Generates an output and is supplied to the progressive terminal (+) of the guest code storage 43 through the OR gate 66.
The 43 guest code numbers are progressive.

In the above embodiment, an example in which infrared rays are used as electromagnetic waves emitted from the remote control device 20 has been described. However, other electromagnetic waves such as radio waves, sound waves, and ultraviolet rays can be used in addition to infrared rays.

Further, in the above embodiment, an example in which the present invention is applied to a hotel door is shown, but it will be understood that the present invention can be applied to a rental locker door or a rental car door provided in public facilities such as a golf course. .

Effect of the Invention Since an electromagnetic wave including a predetermined remote control code is emitted from the remote control device and the guest code number can be progressively managed, the guest code number can be easily managed. Also, the guest code can be progressively progressed from a position away from the door using a remote control device, which is convenient.

[Brief description of the drawings]

1 (a) is a front view showing a keyboard of an electronic control device according to the present invention, FIG. 1 (b) is a block diagram of the electronic control device according to the present invention, and FIG. 2 is a flowchart showing an operation sequence of the electronic control device. FIG. 3 is a circuit diagram of an electronic control device according to the present invention constituted by a discrete circuit, and FIG. 4 is a block diagram of a remote control device. 11 switch, 12 control unit, 14 light receiving sensor (receiving means), 15 lock control device, 20 infrared light emitting device (remote control device), 23 storage device (remote control code storage) Means), 24 ... Comparator (remote operation code comparison means), 40 ... Guest code comparator (Guest code comparison means), 43 ... Guest code storage (Guest code storage means), 50 ... User code comparison Device (guest code comparing means), 51 ... user code storage device (user code storage means), 60 ... guest code progressive circuit,

Claims (2)

(57) [Claims] A plurality of switches (11), a guest code storage means (43) for storing a guest code number, and a number input by the plurality of switches (11) and stored in the guest code storage means (43). The guest code number
Guest code comparing means (40) for transmitting a coincidence signal when they match, and user code storage for storing an arbitrary user code number inputted by a plurality of switches (11) according to the coincidence signal of the guest code comparing means (40) Means (51) for comparing a user code number stored in a user code storage means (51) with a number input by a plurality of switches (11), and generating an unlock signal when they match. An electronic control unit having means (50) and a lock control device (15) activated by an unlocking signal, comprising: a receiving means (14) for receiving an electromagnetic wave including a code signal generated by a remote control device; Remote operation code storage means (2
3) and the remote control code storage means (2
3) remote control code comparing means (24) for generating a match signal when a match is made with the code signal stored in 3), and the guest code storage means (43) stores a plurality of accumulative guest code numbers. An electronic control device which stores and advances a guest code number to a next guest code number based on a coincidence signal of a remote operation code comparison means (24). 2. A guest code comparing means (60) for generating a progressive signal for accumulating a guest code number based on a coincidence signal of a remote operation code comparing means (24), wherein the guest code comparing means (40) includes a plurality of guest code comparing means (40). The number input by the switch (11) is compared with the guest code number stored in the guest code storage means (43), and a match signal (O ₁ ) is transmitted when the input number matches the guest code number. _2. The electronic control unit according to claim 1, further comprising a signal (O ₂ ) for causing the guest code storage means (43) to advance.