JP2699018B2 - Unlocking system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an unlocking device having an unlocking device such as an electronic key and an unlocking device such as a lockable vending machine which is unlocked by the unlocking device. Related to lock system.

[Related Art] Today, various kinds of articles including drinking water are sold outdoors by vending machines. Such vending machines,
A staff member is in charge of a plurality of vending machines, and supplies articles while regularly patrol.

By the way, a key is attached to each vending machine so that an unspecified person cannot open the door freely. Although this key is unique to each vending machine, the attendant has a master key that can commonly operate a plurality of vending machines in charge.

[Problem to be Solved by the Invention] Therefore, if the master key that opens the door is lost or stolen, or an illegal copy of the master key is made, the doors of many vending machines are unspecified by the key. There is a risk that it will be opened. When such a situation occurs, it is necessary to immediately replace all the keys of a large number of vending machines corresponding to the situation.

However, such conventional key replacement for a large number of vending machines requires a great deal of labor and costs are enormous, and it has been desired to provide an appropriate solution.

Accordingly, an object of the present invention is to provide an unlocking system that improves safety in unlocking.

[Means for Solving the Problems] According to a configuration of the present invention for achieving the above object, an unlocking device sends an identification information transmitting device that transmits identification information and an unlocking device that transmits unlock information. A receiving unit that receives the identification information and the unlock information on the unlock target side, and sends confirmation information that prompts the unlocking device to send the unlock information when the reception of the identification information is confirmed. And an unlocking means for unlocking the lock in response to reception of the unlock information.

Further, on the unlocker side, there is provided an unlocking device for transmitting unlocking information including a predetermined ID code, and a master transmission unit for rewriting the ID code of the unlocking target side, and on the unlocking target side, A receiving unit that receives the unlock information and a receiving unit that receives an output from the master transmitting unit, a storage unit that stores information including an ID code, and compares the information stored in the storage unit with the unlock information. And a control unit that rewrites an ID code in a storage unit based on a signal from a master transmission unit. It is.

[Operation] The operation of the present invention having the above-described configuration is as follows. When specific identification information is transmitted from the identification information transmission device on the unlocker side, the unlock target receives this and transmits the information to the unlocker side. Confirmation information is sent. The unlocking device on the unlocking side outputs unlocking information corresponding to the confirmation information, and this is received by the unlocking target. On the unlocking side, the unlocking information is confirmed, and the unlocking means unlocks accordingly. In this way, safety at the time of unlocking is improved.

Further, according to the second means, the ID code of the storage unit on the unlock target side can be rewritten by the master transmission unit, and the security can be maintained.

Examples Hereinafter, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an overall configuration of an unlocking system as one embodiment, FIG. 2 is a block diagram showing a detailed configuration of an unlocking device, and FIG. 3 is a block diagram showing an internal configuration of a transmitter. is there.

The unlocking system 1 shown in FIG. 1 includes a transmitter 2 serving as a transmitting device of identification information provided with a specific ID code provided on an unlocking person side and an unlocking device configured separately from the transmitter 2. And an unlocking target device 3 such as a vending machine.

As shown in FIG. 2, an electronic key 4 serving as an unlocking device includes an ultrasonic transmitting unit 7 that converts unlocking information into an ultrasonic wave and transmits the ultrasonic wave, and an unlocking target device 3 whose details will be described later. An ultrasonic wave receiving unit 8 for receiving the transmitted confirmation information by ultrasonic waves, a CPU,
The control unit 6 mainly includes a memory in which an application program and the ID code and the like are stored.

The control section 6 serves as a control center and can realize a function of transmitting coded unlock information in accordance with the received confirmation information by a specific application program stored in a memory (not shown). In this embodiment, the control unit 6 and the ultrasonic wave transmitting unit 7 constitute unlocking information sending means 10 for sending unlocking information to be used for unlocking.

The transmitter 2 is provided separately from the electronic key (unlocking device) 4 and has an appearance such as a name plate attached to a chest of a worker who exchanges and replenishes articles in a vending machine, for example. As shown in FIG. 3, the CPU that is the control center
Or a control unit 20 having a memory or the like in which an encrypted ID code or the like is stored, and a radio wave transmitting unit that transmits specific identification information including the ID code as a radio wave by the control unit 20
21.

In this embodiment, the electronic key 4 has a function of transmitting and receiving ultrasonic waves, and the transmitter 2 has a transmitting section of radio waves. Light, sound or the like can be used as the medium.

An unlocking target device 3 provided in a vending machine or the like includes a radio wave receiving unit 11 for receiving a radio wave (identification information including an ID code) transmitted from the transmitter 2 and an ID code of the received identification information. A code converter 14 for decoding and decoding the original ID code, an ultrasonic wave receiving unit 12 for receiving the ultrasonic wave (unlocking device) transmitted from the electronic key 4, and an encryption generating unit 16 to be described later The ultrasonic transmitting unit 13 converts the encrypted confirmation information generated in the above into an ultrasonic wave and sends it to the electronic key 4 as an unlocking device, and the ID code or ultrasonic wave receiving output from the code converter 14 A relay unit 15 for transmitting the unlock information output from the unit 12 to the decryption unit 18, an actuator control unit 19 as an unlocking unit that operates according to confirmation of the decryption unit 18 and unlocks and locks the key 22. The clock 1 connected to the ID code output from the code converter 14 And a cipher generator 16 for generating a corresponding encrypted code signal as confirmation information to be sent to the electronic key 4 based on the time information output from 7.

In this embodiment, the confirmation means 23 for confirming the input identification information and unlock information is constituted by the code converter 14, the relay means 15, the decryption unit 18, the encryption generation unit 16 and the clock 17.

The operation and effect of the unlocking system configured as described above will be described with reference to the flowchart shown in FIG.

Step ST1: When the power is turned on and each unit is initialized, the unlocking target device 3 waits for input of identification information from the transmitter 2 on the unlocking person side and unlocking information from the electronic key 4. I do. In this state, when the specific identification information transmitted from the transmitter 2 attached to the worker's chest is input to the radio wave receiving unit 11, the process proceeds to step ST2, and if not, this state is maintained.

Step ST2: The identification information decoded by the code converter 14 is sent to the subsequent decryption unit, and this identification information is sent to the encryption generation unit 16, and the encryption generation unit 16
The encrypted confirmation information is formed by the combination with the time of 17. This confirmation information is sent from the ultrasonic wave transmitting unit 13 to the electronic key 4.

Step ST3: The electronic key 4 waits for reception of the encrypted confirmation information. If the confirmation information is not received after a predetermined time, the information is canceled and all are initialized.

Step ST4: In the electronic key 4, unlock information in a state in which an unlock signal is added to the encryption code of the check information is created based on the encrypted check information, and the unlock information is It is sent out as sound waves.

Step ST5: The unlocking target device 3 waits for input of unlocking information from the electronic key 4, and if there is input within a predetermined time, proceeds to step ST6. If it is not received within the predetermined time, it is canceled and all are initialized.

Step ST6: The inputted unlocking information is sent to the decryption unit 18, and it is confirmed whether the encrypted confirmation information transmitted by ST2 and the encryption of the unlocking information are encoded, and are not matched. Sometimes it is canceled.

Step ST7: An unlock command is issued to the unlocking means (actuator control unit) 19 by confirming the encryption in the decryption unit 18.

Further, in ST8, the lock is released by the lock release means 19 and unlocked. Further, in ST9, once the door is unlocked and the opened door is closed, the door is locked again.

In the above description, in each step, when there is no reception of predetermined information within a predetermined time, the information is canceled and initialized. However, for example, when there is no reception, retry is performed a predetermined number of times (for example, three times). It may be canceled and initialized when the reception is not performed after a predetermined number of retries after waiting.

With the unlocking system described in detail above, the identification information from the transmitter 2 is not input even if the key that opens the door of the vending machine or the like is lost or stolen, or an illegal copy of the key is made. As long as the doors are not unlocked, it is possible to solve the problem that the keys may open many vending machine doors to an unspecified person. Therefore, the safety at the time of unlocking can be remarkably improved as compared with the related art. Moreover, even in the case where such a situation occurs, it is not necessary to replace all the keys of the corresponding vending machines immediately every time as in the conventional case, so that the cost for this can be significantly reduced. It becomes possible to plan.

In addition, by transmitting and receiving identification information and confirmation information as in the present embodiment and confirming each time, the security can be further improved, and transmission of the identification information is mediated by radio waves, and unlock information is transmitted. Since the transmission and reception is performed by using ultrasonic waves, even if a malicious third party attempts to decrypt the encryption code, the decryption operation becomes very complicated, so that the security can be dramatically improved. Further, in this embodiment,
In the encryption generation unit 16, the ID code from the transmitter 2 and the clock
17, different confirmation information is created as needed, and unlocking information based on the encrypted confirmation information is output from the electronic key 4, so that the confidentiality of the information can be completely realized.

FIGS. 5 and 6 show an unlocking system as another embodiment. FIG. 5 is a block diagram showing an overall configuration, and FIG. 6 is an internal view of an unlocking target device shown in FIG. FIG. 3 is a block diagram illustrating a configuration. In FIGS. 5 and 6, the same components as those of the above embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

The unlocking system shown in FIG.
The encryption code stored in the memory 33 in the storage 27 can be changed to a new encryption code.

In the normal unlocking operation, the unlock information transmitting means shown in FIG.
An unlocking device (electronic key) 28 having 10 is used, but when the encryption code in the memory 33 is changed, the master key 29 is used.

On the unlocking target device 27 side, a receiving unit 26 that receives the modulated signal transmitted from the master key 29, and whether or not unlocking information such as ultrasonic waves transmitted from the unlocking device 28 matches And a lock release means 19 having the same configuration as described above for releasing the lock when a specific relationship is confirmed by the confirmation means 30.

The unlocking target device 27 includes a demodulation circuit 31 that demodulates a signal sent from the master key 29, a memory control unit 32 that performs read / write control of a signal with respect to a memory 33 such as a RAM connected at a subsequent stage, Memory 3 consisting of RAM etc. that stores identification information and encryption code at the assigned address
3, a receiving unit 34 for receiving the unlock information transmitted as an ultrasonic wave from the electronic key 28, a demodulating unit 35 for demodulating the received ultrasonic signal, and the demodulated unlock information. A comparison check unit 36 that compares the encrypted code of the code with the code stored in the memory 33 and outputs a control signal to an actuator connected to the subsequent stage when the codes match, and an actuator control unit 19 similar to the above. It has.

In the present embodiment, the memory control unit 32, the memory 33, and the comparison confirmation unit 36 constitute a confirmation unit 30.

The memory control unit 32 has a function of, when a new encryption code is input together with the rewriting information from the master key 29, rewriting the encryption code recorded at the assigned address to the new encryption code.

The operation of the unlocking system having the above configuration will be described.

When the unlock information transmitted from the electronic key 28 is received by the wave receiving unit 34, the unlock information and the code stored in the memory 33 are compared and confirmed. That is, the unlock information input via the demodulation unit 35 is compared with the code stored in the memory 33 by the comparison confirmation unit 36. As a result of the comparison, if they match, a control signal is output to the actuator control unit 19 connected to the subsequent stage. As a result, the actuator control unit 19 releases the locked state of the key 22 and allows the opening and closing of a door (not shown).

By the way, in the case where the electronic key 25 is lost, for example, in this embodiment, the conventional encryption code stored in the memory 33 is rewritten by the master key 29 with a new encryption code.

According to the unlocking system having such a configuration, the encryption code can be easily changed by the master key 29, so that, for example, a worker stops the car in front of each vending machine, and There is an advantage that the encryption code can be easily changed just by operating 29.

In the system shown in FIGS. 5 and 6, the first
In the system to which the identification information transmitting device 2 shown in the figure is added, in other words, in the system shown in FIG. 1, a function for rewriting the encryption code may be added.

Note that the present invention is not limited to the above embodiment,
Various modifications can be made within the scope of the gist.

In the above-described embodiment, when it is confirmed that the unlock information and the identification information match, the locked state of the key is unlocked by a single operation. You may lock it. The key in this case is assumed to be a rotating lock, and a stepping motor is attached to this rotating shaft,
It is assumed that a sensor for detecting the rotation angle is attached.

In such a configuration, after rotating a predetermined angle clockwise, an ID code is generated based on the above-described identification information and unlock information, and a command to rotate counterclockwise is generated based on the ID code. Let it. Then, after another ID code is generated based on the identification information and the unlock information, it is rotated counterclockwise by a predetermined angle. After such an operation is repeated several times, the lock is released. With such a configuration, the degree of safety at the time of unlocking can be improved.

[Effects of the Invention] According to the present invention described in detail above, it is possible to provide an unlocking system that improves safety in unlocking.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an entire configuration of an unlocking system as one embodiment, FIG. 2 is a block diagram showing a detailed configuration of an unlocking device, FIG. 3 is a block diagram showing an internal configuration of a transmitter, FIG. 4 is a flowchart showing the operation of the above embodiment,
FIG. 5 is a block diagram showing a configuration of an unlocking system as another embodiment, and FIG. 6 is a block diagram showing a configuration of an unlocking target device shown in FIG. 2 ... Identification information sending device, 4,28 ... Electronic key, 3,27 ...
Device to be unlocked, 29 Master key.

Claims (2)

(57) [Claims] An unlocking person side is provided with an identification information transmitting device for transmitting identification information and an unlocking device for transmitting unlocking information, and the unlocking target side is provided with the identification information and the unlocking information. A receiving unit that receives the identification information; a transmitting unit that transmits confirmation information that prompts the unlocking device to transmit the unlock information when confirming the reception of the identification information; and a lock that releases the lock in response to the reception of the unlock information. Unlocking system provided with a release means 2. The unlocking person is provided with an unlocking device for transmitting unlocking information including a predetermined ID code, and a master transmitting unit for rewriting the ID code of the unlocking target. In
A receiving unit that receives the unlock information and a receiving unit that receives an output from the master transmitting unit, a storage unit that stores information including an ID code, and compares the information stored in the storage unit with the unlock information. And a control unit for rewriting the ID code in the storage unit based on a signal from the master transmission unit. Lock system