JP2020101016A - Electric lock system - Google Patents

Abstract

To provide an electric lock system capable of improving working efficiency by preventing a reading error of a non-contact type memory and concurrently preventing wasteful consumption of a battery.SOLUTION: A battery pack 20 includes a battery 21 and a non-contact type memory 23. An electric lock 30 includes a reading/writing antenna coil 33 connected to a control unit 31 of the electric lock 30. When the battery pack 20 is mounted on the electric lock 30 in position, a memory-side antenna coil 23b of the non-contact type memory 23 is located, near the reading/writing antenna coil 33, at a position where a virtual plane parallel to the winding direction of the reading/writing antenna coil 33 and a virtual plane parallel to the winding direction of the memory-side antenna coil 23b face each other substantially in parallel. The control unit 31 is connected to the battery 21, receives power supply, and reads/writes information from/to the non-contact memory 23 via the reading/writing antenna coil 33 and the memory-side antenna coil 23b.SELECTED DRAWING: Figure 1

Description

The present invention relates to an electric lock system including an electronic key and an electric lock including a control unit that locks or unlocks by reading and authenticating authority information stored in the electronic key.

In the past, when delivering documents related to company secrets or highly valuable packages, in order to prevent unauthorized removal of the packages during delivery, the packages should be stored in a delivery box and the delivery box should be locked. The security of luggage has been ensured such that only a specific person can open the key.
For the key of the delivery box, for example, an electronic padlock disclosed in Patent Document 1 is used. The electronic padlock locks or unlocks by inserting the electronic key to read and authenticate the authority information, the valid time information, etc. stored in the electronic key. It is possible to leave the history of.

Japanese Patent No. 5296650

In order to lock and unlock the electronic padlock as described above, it is necessary to insert the electronic key into the keyhole, but electronic keys with a non-contact type memory (for example, card key) are often used. Nowadays, many users feel that the act of inserting and removing the electronic key into and from the keyhole is a roundabout.
Therefore, in order to lock or unlock the electronic padlock with a built-in antenna coil capable of reading the information stored in the non-contact type memory, and storing the antenna coil in the non-contact type memory built in the electronic key. It is conceivable that the electronic padlock is locked or unlocked by reading the authority information of.
However, since the magnetic field of the antenna coil is around 10 cm, the non-contact type memory is displaced from that range, and the non-contact type memory is brought close to the antenna coil momentarily. If the staying time is short or the angle of the non-contact memory with respect to the antenna coil is not parallel, there is a high possibility that an error will occur in reading. Then, the reading must be performed again, and the work efficiency is reduced. Further, repeated reading of the non-contact type memory also consumes useless power.

The present invention is intended to solve the above-mentioned problems, and improves the work efficiency by preventing the reading error of the non-contact type memory, and at the same time, it is possible to prevent the wasteful battery consumption. The purpose is to provide a system.

In order to solve the above problem, the key management box of the present invention has the following configuration.
(1) In an electric lock system including an electronic key and an electric lock including a control unit that locks or unlocks by reading and authenticating authority information stored in the electronic key, the electronic key is a battery. A non-contact type memory having a memory side antenna coil, an electric lock having a mounting hole for mounting an electronic key, and a read/write antenna coil connected to a control unit. Is positioned in the electric lock by being mounted in the mounting hole, and the memory-side antenna coil has a virtual plane parallel to the winding direction of the read/write antenna coil and a memory-side antenna near the read/write antenna coil. The controller is connected to the battery and is supplied with power, and the controller supplied with power from the battery is connected to the lead surface. Information is read from and written to the non-contact type memory via the write antenna coil and the memory side antenna coil.

(2) In an electric lock system including an electronic key and an electric lock including a control unit that locks or unlocks by reading and authenticating authority information stored in the electronic key, the electronic key is a battery. A non-contact type memory having a memory side antenna coil and a read/write antenna coil, and the memory side antenna coil is provided in the vicinity of the read/write antenna coil and parallel to the winding direction of the read/write antenna coil. The virtual surface and the virtual surface parallel to the winding direction of the memory-side antenna coil are positioned substantially parallel to each other, the electric lock has a mounting hole for mounting the electronic key, and the electronic key Is mounted in the mounting hole, positioned in the electric lock, the read/write antenna coil is connected to the controller, the controller is connected to the battery, and the battery supplies power to the controller by direct current. That is, the control unit receiving power supply from the battery performs reading and writing of information by a high frequency signal between the non-contact type memory via the read/write antenna coil and the memory side antenna coil, The high frequency signal is superposed on the direct current between the electronic key and the electric lock and supplied to both.

(3) In the electric lock system described in (1) or (2), the electric lock includes a fixing unit that fixes the electronic key in a state of being positioned in the electric lock.
(4) In the electric lock system according to (3), the non-contact type memory stores authority information, and the electric lock has an input unit for inputting a control signal for controlling the electric lock to the control unit. The electronic key is attached to the electric lock, and the control unit receives the power supply from the battery, thereby transmitting the authority information from the non-contact type memory through the read/write antenna coil and the memory side antenna coil. An electric lock use start program that reads and authenticates the electric lock and puts the electric lock in a predetermined state, and also fixes the electronic key by the fixing means. When a control signal is input to the control unit, the authority information is read from the non-contact type memory through the read/write antenna coil and the memory side antenna coil to perform authentication, and the electric lock is kept in a predetermined state. And an electric lock use stop program for releasing the fixing of the electronic key by the fixing means, while restoring the state before the start of use.

(5) In the electric lock system according to any one of (1) to (4), the electric lock includes position information acquisition means for acquiring its own position information, and the control unit sets a predetermined time interval. Further, the position information acquired by the position information acquisition means is written in the non-contact type memory via the read/write antenna coil and the memory side antenna coil.
(6) In the electric lock system according to any one of (1) to (5), the electric lock includes a temperature sensor capable of measuring an ambient temperature, and the control unit controls the temperature at predetermined intervals. The temperature information measured by the sensor is written in the non-contact type memory via the read/write antenna coil and the memory side antenna coil.
(7) In the electric lock system according to any one of (1) to (6), the electric lock system is capable of charging a battery by mounting an electronic key, and is provided with a non-contact type memory. A key management device capable of reading and writing information between them is provided.

The key management box of the present invention has the following actions and effects by having the above configuration.
(1) In an electric lock system including an electronic key and an electric lock including a control unit that locks or unlocks by reading and authenticating authority information stored in the electronic key, the electronic key is a battery. A non-contact type memory having a memory side antenna coil, an electric lock having a mounting hole for mounting an electronic key, and a read/write antenna coil connected to a control unit. Is positioned in the electric lock by being mounted in the mounting hole, and the memory-side antenna coil has a virtual plane parallel to the winding direction of the read/write antenna coil and a memory-side antenna near the read/write antenna coil. The controller is connected to the battery and is supplied with power, and the controller supplied with power from the battery is connected to the lead surface. Since information is read from and written to the non-contact type memory via the write antenna coil and the memory side antenna coil, it is useless to prevent a read error of the non-contact type memory. It is possible to prevent battery consumption.

That is, when the electronic key is mounted in the mounting hole of the electric lock and positioned, the control section is surely connected to the battery and receives power, so that the read/write antenna coil and the memory side antenna coil are used. It becomes possible to read and write information in the non-contact type memory. Then, in order to surely read and write information between the read/write antenna coil and the non-contact type memory, the memory side antenna coil is wound around the read/write antenna coil in the vicinity of the read/write antenna coil. Since the virtual plane parallel to the direction and the virtual plane parallel to the winding direction of the memory-side antenna coil are located substantially parallel to each other, the non-contact type memory is positioned from the magnetic field range of the read/write antenna coil. The contact time of the non-contact type memory is short in the vicinity of the read/write antenna coil, or the non-contact type of the non-contact type memory is brought close to the read/write antenna coil. Reading and writing of information is instantaneously performed without causing a reading error due to non-parallel memory angles. Therefore, it is not necessary to read again when a read error occurs, and it is possible to prevent wasteful power consumption.

(2) In an electric lock system including an electronic key and an electric lock including a control unit that locks or unlocks by reading and authenticating authority information stored in the electronic key, the electronic key is a battery. A non-contact type memory having a memory side antenna coil and a read/write antenna coil, and the memory side antenna coil is provided in the vicinity of the read/write antenna coil and parallel to the winding direction of the read/write antenna coil. The virtual surface and the virtual surface parallel to the winding direction of the memory-side antenna coil are located at positions substantially parallel to each other, and the electric lock has a mounting hole for mounting an electronic key. When the key is mounted in the mounting hole, the key is positioned in the electric lock, the read/write antenna coil and the control unit are connected, the control unit is connected to the battery, and the battery is powered by the direct current to the control unit. Supply, power supply from the battery, the control unit, through the read/write antenna coil and the memory-side antenna coil, to read and write information with the non-contact type memory by a high-frequency signal Since the high-frequency signal is superimposed on the direct current between the electronic key and the electric lock and supplied to both, the non-contact type memory is prevented from reading errors and the useless battery is prevented. It is possible to prevent consumption.

That is, when the electronic key is mounted in the mounting hole of the electric lock and positioned, the control unit is securely connected to the read/write antenna coil and the battery. Since the control unit connected to the battery is supplied with power, it becomes possible to read/write information from/to the non-contact type memory via the read/write antenna coil and the memory side antenna coil. In the electronic key, the memory-side antenna coil is provided near the read/write antenna coil for read/write so that information can be surely read and written between the read/write antenna coil and the non-contact type memory. Since the virtual plane parallel to the winding direction of the antenna coil and the virtual plane parallel to the winding direction of the memory-side antenna coil are located at positions substantially parallel to each other, the magnetic field range of the read/write antenna coil is reduced. The non-contact type memory is misaligned, or the non-contact type memory is momentarily brought close to the read/write antenna coil. Reading and writing of information is instantaneously performed without causing a reading error due to non-parallel angle of the non-contact memory with respect to the antenna coil. Therefore, it is not necessary to read again when a read error occurs, and it is possible to prevent wasteful power consumption.

(3) In the electric lock system according to (1) or (2), the electric lock includes fixing means for fixing the electronic key in a state of being positioned in the electric lock. Even if external force such as shock or vibration is applied to the electric lock, a stable connection between the electric lock and the electronic key can be made.
That is, when the electronic key is mounted in the mounting hole and positioned, the control unit is connected to the battery and the read/write antenna coil, so that the electronic key is positioned and fixed by the fixing means. Therefore, even if external force such as shock or vibration is applied to the electric lock, power can be stably supplied to the control unit, and reading error of information stored in the non-contact type memory can be prevented. It is possible to stably read and write information with the contact type memory.

(4) In the electric lock system according to (3), the non-contact type memory stores authority information, and the electric lock has an input unit for inputting a control signal for controlling the electric lock to the control unit. The electronic key is attached to the electric lock, and the control unit receives the power supply from the battery, thereby transmitting the authority information from the non-contact type memory through the read/write antenna coil and the memory side antenna coil. An electric lock use start program that reads and authenticates the electric lock and puts the electric lock in a predetermined state, and also fixes the electronic key by the fixing means. When a control signal is input to the control unit, the authority information is read from the non-contact type memory through the read/write antenna coil and the memory side antenna coil to perform authentication, and the electric lock is kept in a predetermined state. From the above, there is a program to restore the state before the start of use, and an electric lock use stop program for releasing the fixing of the electronic key by the fixing means. There is no need to do so, and it is possible to prevent the electronic key from being lost.

When an electronic key is used for unlocking like the electronic padlock disclosed in Patent Document 1, it is necessary to send the electronic key to the package receiver. If the electronic key is sent separately from the package, the arrival of the electronic key may be delayed from the package, so it is necessary to deposit the electronic key with the package delivery person. Then, the delivery person must separately manage the electronic key in addition to the management of the package to be delivered, which may reduce the efficiency of the delivery work. In particular, when transporting luggage to remote areas, multiple trucks relay and transport, so the electronic key is handed over between the drivers each time relaying is performed, making it more difficult to manage the electronic key. There is a risk of becoming. In addition, if the electronic key is lost, the package receiver may not be able to unlock the delivery box.

In the present invention, the electric lock use start program is executed to bring the electric lock into a predetermined state, and when the fixing means fixes the electronic key to the electric lock, the electric lock use stop program is executed. As a result, the electric lock is restored from the predetermined state to the state before the start of use, and the electronic key remains fixed to the electric lock until the fixing of the electronic key by the fixing means is released. Here, the predetermined state is, for example, a state in which the electric lock is locked, and the restoration from the predetermined state to the state before the start of use is a state in which the electric lock is unlocked. Therefore, when the luggage to be transported is locked by the electric lock, the electric lock and the electronic key are always integrated during the transportation of the luggage. Since the electric lock and the electronic key are always integrated, it is not necessary for the truck driver to separately manage the electronic key while the luggage is being transported. Even when multiple trucks need to be relayed for transportation, such as when transporting luggage to a remote location, the electronic key is not exchanged between the drivers each time relaying is performed, and the delivery work is not performed. In addition to eliminating the risk of reduced efficiency, the risk of losing the electronic key is eliminated.
The electric lock use start program is executed to unlock the electric lock, the electronic key is fixed to the electric lock by the fixing means, and the electric lock use stop program is executed. It is also possible to lock the electronic key and release the fixation of the electronic key by the fixing means.

(5) In the electric lock system according to any one of (1) to (4), the electric lock includes position information acquisition means for acquiring its own position information, and the control unit sets a predetermined time interval. In addition, since the position information acquired by the position information acquisition means is written in the non-contact type memory via the read/write antenna coil and the memory side antenna coil, only management of the electronic key is performed. Therefore, simple information management is possible.
That is, when the electronic key is attached to the electric lock, the control unit that receives power supply from the battery of the electronic key acquires the position information acquisition unit via the read/write antenna coil and the memory side antenna coil. The written position information is written in the non-contact type memory of the electronic key. It is possible to manage the position information together with the battery remaining amount management of the electric lock system, and it is easy to manage the electric lock system at a distribution center or the like.

(6) In the electric lock system according to any one of (1) to (5), the electric lock includes a temperature sensor capable of measuring an ambient temperature, and the control unit controls the temperature at predetermined intervals. Since the temperature information measured by the sensor is written in the non-contact type memory via the read/write antenna coil and the memory side antenna coil, simple information can be obtained only by managing the electronic key. Can be managed.
For example, luggage that must be kept at a low storage temperature, such as organs to be used for organ transplantation, and luggage that must be kept at a storage temperature within the range of 60 to 70 degrees, such as meals (60 If the temperature is lower than 60 degrees, various bacteria will propagate for feeding, and at 70 degrees or higher, there is a risk of burns. Therefore, the temperature is regulated at 60 to 70 degrees), and the temperature control is under the responsibility of the delivery company. In order to prove whether there was any abnormality in the temperature during transportation, such as in the unlikely event that the organ became unusable or food poisoning occurred during feeding, manage the temperature information during transportation. I need to put it. Therefore, a temperature sensor that can measure the ambient temperature is attached to the electric lock system, and the electronic key is attached to the electric lock, so that the control unit that receives power supply from the battery of the electronic key operates as a read/write antenna coil. If the temperature information measured by the temperature sensor via the memory-side antenna coil is written into the non-contact type memory of the electronic key every predetermined time, the temperature information of It can be managed, and it is easy to manage the electric lock system at a distribution center or the like.

(7) In the electric lock system according to any one of (1) to (6), the electric lock system is capable of charging a battery by mounting an electronic key, and is provided with a non-contact type memory. A key management device capable of reading and writing information between them is provided.
The conventional electronic padlock disclosed in Patent Document 1 includes a battery for driving the control unit and a history storage unit for storing history, so that the battery remaining amount is managed and the electronic padlock is used. It is necessary to regularly manage history information by connecting a padlock to the USB port. Further, in the electronic key, it is necessary to manage permission information and effective time information for unlocking and locking the electronic padlock. Therefore, in a distribution center or the like, a management system must be prepared for both the electronic padlock and the electronic key in order to manage the remaining battery level and information, which is troublesome.
According to the present invention, for example, if the key management device can be connected to an electronic device such as a smartphone or a personal computer via a USB port, the battery of the electronic key can be charged while the non-contact type memory is provided with an electric lock. It is possible to store the authority information for locking or unlocking, and read the stored history information and the like, which simplifies the information management of the electric lock system in the distribution center or the like.

The block diagram of the electric lock system which concerns on 1st Embodiment is represented. The front view of the electric lock which concerns on 1st Embodiment is represented. The sectional view of the unlocked state of the electric lock which concerns on 1st Embodiment is represented. The sectional view of the locked state of the electric lock which concerns on 1st Embodiment is represented. The flowchart of an electric lock utilization start program is represented. The flowchart of an electric lock use stop program is represented. 3 is an external perspective view of the key management device. FIG. The block diagram of the electric lock system which concerns on 2nd Embodiment is represented. The front view of the electric lock which concerns on 2nd Embodiment is represented. The external perspective view of the locked luggage provided with the electric lock which concerns on 3rd Embodiment is represented. The rear view of the electric lock which concerns on 3rd Embodiment is represented. The side sectional view of the electric lock which concerns on 3rd Embodiment is represented. FIG. 11 is a reference diagram of a circuit in the case where the read/write antenna coil is built in the electronic key side and the DC current and the high frequency signal are not superposed.

A first embodiment of an electric lock system 1 of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, the electric lock system 1 of the present embodiment has a battery pack 20 as an electronic key and an electric lock 30. The electric lock 30 has a control unit 31, reads authorization information from the battery pack 20 attached to the electric lock 30, and performs authentication, and locks or unlocks the electric lock 30 when the authentication is successful.

<Battery pack configuration>
Next, the battery pack 20 will be described.
The battery pack 20 is used as an electronic key for locking or unlocking the electric lock 30. As shown in FIG. 2, the battery pack 20 has a battery 21 and a flat plate-shaped non-contact memory 23 built therein, and is inserted into the battery pack mounting hole 335 a of the electric lock 30. In addition, the first terminal 25 and the second terminal 27 are provided, and by connecting the first terminal 47 and the second terminal 49 inside the battery pack mounting hole 335a, the DC current from the battery 21 is controlled by the control unit of the electric lock 30. The control unit 31 that supplies the electric current to the electric motor 31 and receives the direct current controls the electric lock 30.
The battery pack 20 includes a fixing means engaging portion 20a that engages with the fixing means 35 included in the electric lock 30, and the fixing means 35 engages with the fixing means engaging portion 20a, so that the battery pack 20 is retained. It can be fixed to the electric lock 30 while being positioned.

The battery 21 is, for example, a lithium polymer battery and is a rechargeable secondary battery. It is not always necessary to use the secondary battery, and the primary battery may be applied and the discharged primary battery may be replaced with a new primary battery.
The non-contact type memory 23 is a memory that stores authority information and history information. The non-contact type memory 23 has a flat plate shape, and has an IC chip 23a and a memory side antenna coil 23b built therein. Information can be exchanged between the memory-side antenna coil 23b and the read/write antenna coil 33 of the electric lock 30 which will be described later, and the information stored in the IC chip 23a can be read and the information can be transferred to the IC chip 23a. It is possible to write information.
Here, the authority information is information regarding the authority to lock or unlock the electric lock 30. Further, the history information is related to the history of the time when the electric lock 30 is locked or unlocked, the atmospheric temperature of the environment where the electric lock 30 is placed, and the position information of the electric lock 30.

The battery pack 20 can be managed by a key management device 200 as shown in FIG. 7, for example. The key management device 200 is connected to an electronic device (not shown) such as a smartphone or a personal computer by a cable 205, for example, by a USB port.
The key management device 200 includes a battery pack mounting groove 201. A non-contact type memory reading unit 202 is provided on the wall surface of the battery pack mounting groove 201, and terminals 203 and 204 are provided on the bottom surface of the battery pack mounting groove 201.
When the battery pack 20 is mounted in the battery pack mounting groove 201, the first terminal 25 and the second terminal 27 are connected to the terminals 203 and 204, and the non-contact type memory 23 faces the non-contact type memory reading unit 202. Will be located. As a result, the battery 21 can be charged, and the authority information can be written in the contactless memory 23 by the contactless memory reading unit 202. Further, if the history information is stored in the non-contact type memory 23, it is possible to read the information by the non-contact type memory reading unit 202 and manage the information by an electronic device such as a smartphone or a personal computer. Since it is possible to manage information while managing the remaining amount of the battery 21, information management of the electric lock system 1 in a distribution center or the like becomes simple.

<Structure of electric lock>
Next, the configuration of the electric lock 30 will be described. As shown in FIGS. 2, 3, and 4, the electric lock 30 is an electronic padlock that is unlocked and locked based on the authority information stored in the non-contact type memory 23.
The electric lock 30 has a U-shaped joint shaft 332, one end of which is detachably attached to the lock body 331. The battery pack 20 includes a battery 21, a non-contact type memory 23, and a pair of contact terminals 25 and 27. A display unit 43 and an input unit (numeric keypad) 41 are attached to the surface of the electric lock 30. A password for unlocking can be input by the input unit 41, and the contents input by the input unit 41 and an error message when the authentication fails can be displayed on the display unit 43.

3 and 4 are sectional views showing the structure of the electric lock 30. FIG. 3 shows a state where the short shaft 332b is separated from the lock body 331 (unlocked state). Further, FIG. 4 shows a state in which the short shaft 332b is inserted into the lock body 331 and locked.
A short shaft hole 331a into which the short shaft 332b of the joint shaft 332 is detachably inserted and a long shaft hole into which the long shaft 332a is inserted are formed on the upper surface of the lock body 331 made of metal and having a hollow portion 331d therein. 331b is formed. In addition, a lateral hole 331c that connects the short shaft hole 331a and the long shaft hole 331b is formed. A pair of lock balls 333 and 334 are attached to the lateral hole 331c with a locking cam 316 having a flat plate shape interposed therebetween. At the entrance of the lateral hole 331c, a convex portion (not shown) for preventing the lock balls 333 and 334 from coming out is formed.
The tip of the rotary shaft 318 is fixed to the center of the locking cam 316. The tip surface of the rotating shaft 318 is rotatably held by a resin holding plate 336. The locking balls 333, 334 are pushed out by the rotating locking cam 316, and the pushed out locking balls 333, 334 engage with the lock grooves 332d, 332e formed in the short shaft 332b and the long shaft 332a to lock. Be seen.

A resin case 335 is attached to the hollow portion 331d of the lock body 331.
A convex portion 335c is formed on the upper surface of the case 335, and the rotary shaft 318 is rotatably held in a holding hole 335d formed in the convex portion 335c. In the case 335, a holding hole 335e having a slightly larger diameter is formed continuously with the holding hole 335d, and the holding hole 335e also holds the rotating shaft 318 rotatably.

A battery pack mounting hole 335a for mounting the battery pack 20 is formed in the case 335. Inside the battery pack mounting hole 335a, the first terminal 47 and the second terminal 49, a read/write antenna. The reading unit 33a including the coil 33 is provided. When the battery pack 20 is inserted into the battery pack mounting hole 335a, the battery pack 20 is positioned in the battery pack mounting hole 335a, and the first terminal 25 and the second terminal 27 of the battery pack 20 are securely connected to the first position of the electric lock 30. The memory-side antenna coil 23b of the non-contact type memory 23 is connected to the first terminal 47 and the second terminal 49, and is arranged in the vicinity of the read/write antenna coil 33 in a virtual direction parallel to the winding direction of the read/write antenna coil 33. The surface and the virtual surface parallel to the winding direction of the memory-side antenna coil 23b are reliably located at positions substantially parallel to each other. Due to such a positional relationship between the read/write antenna coil 33 and the memory-side antenna coil 23b, the non-contact memory 23 may be displaced from the magnetic field range of the read/write antenna coil 33, or the non-contact memory 23 may be displaced. Is momentarily brought close to the read/write antenna coil 33, the stay time in the vicinity of the read/write antenna coil 33 of the non-contact type memory 23 is short, and the angle of the non-contact type memory 23 with respect to the read/write antenna coil 33 is small. Reading and writing of information can be performed instantaneously without causing a reading error due to inappropriateness. Therefore, it is not necessary to read again when a read error occurs, and it is possible to prevent wasteful power consumption. The distance between the non-contact memory 23 and the read/write antenna coil 33 is preferably within 10 cm. This is because the magnetic field of the read/write antenna coil 33 is around 10 cm, so that if the non-contact type memory 23 is outside the range, reading and writing of information may not be stably performed.

Further, a guide hole 335b for slidably holding the long shaft 332a is formed. The long shaft 332a is slidably mounted in the guide hole 335b. A retaining member 332f is fixedly provided on the long shaft 332a. The retaining member 332f is guided by the guide hole 335h of the case 335, and functions as a retaining member for preventing the long shaft 332a from separating from the lock body 331.

Further, the case 335 is formed with a notch sliding hole 335f that slidably holds a sliding notch 324 for detecting the long shaft 332a. An urging spring 325 is attached to the notch sliding hole 335f, and the urging spring 325 urges the sliding notch 324 in the direction of abutting against the long shaft 332a.
A hollow portion 335g is formed in the center of the case 335, and a motor 321 for rotating the rotating shaft 318, a motor gear 320 fixed to the rotating shaft of the motor 321, and a motor gear 320 fixed to the rotating shaft 318. A rotary plate gear 319 engaged with 320, a detection plate 322 fixed to the lower end of the rotary shaft 318 and having a detection notch 322a formed therein, and a lock position detection switch which is a limit switch for detecting the detection notch 322a. A long shaft confirmation switch 326, which is a limit switch for confirming the position of the long shaft 332a by means of 323 and the sliding notch 324, is housed.
It should be noted that the wiring of the motor 321, the locking position detection switch 323, the long shaft confirmation switch 326, and the like, and the control unit 31 are omitted because they are complicated.

<Circuit configuration of electric lock system>
The battery pack 20 has the electric circuit shown in FIG. This electric circuit includes a battery 21 and a non-contact type memory 23. The first terminal 25 is connected to the positive electrode side of the battery 21, and the second terminal 27 is connected to the negative electrode side of the battery 21.
The electric lock 30 has the electric circuit shown in FIG. The electric circuit includes a control unit 31, and the control unit 31 has fixing means for maintaining the mounted state of the read/write antenna coil 33 wound in a flat plate shape and the battery pack 20 mounted on the electric lock 30. 35, a position information acquisition unit capable of acquiring its own position information of the electric lock 30, a temperature sensor 39 capable of measuring the temperature of the atmosphere in which the electric lock 30 is placed, and a wireless communication unit 36 capable of communicating with the outside. , Are connected. The wireless communication unit 36 is, for example, a module capable of low-power wide area communication, and is capable of wireless communication over a wide area while saving power. Further, the input unit 41, the display unit 43, the motor 321, the locking position detection switch 323, and the long shaft confirmation switch 326 described above are connected. Furthermore, a first terminal 47 and a second terminal 49 are connected to the control unit 31 via a stabilized power supply 45. The stabilized power supply 45 is a power supply circuit that controls the output voltage of the DC power supply supplied from the battery 21 of the battery pack 20 so as to always have a constant value.

The control unit 31 includes a CPU 311, a ROM 313, a RAM 315, and an NFC 317.
The ROM 313 stores an electric lock use start program 313a for locking the electric lock 30, and an electric lock use stop program 313b for unlocking the electric lock 30. The CPU 311 controls the operation of the electric lock 30 while temporarily storing data in the RAM 315 according to the electric lock use start program 313a or the electric lock use stop program 313b.
Further, the NFC 317 is connected to the read/write antenna coil 33, the read/write antenna coil 33 reads the information stored in the non-contact type memory 23, and the read/write antenna coil 33 non-contact type. Information is written in the memory 23.

<Operation of electric lock system>
The electric lock system 1 having such a configuration operates as follows.
First, a case where the electric lock 30 is used to lock a bag or a delivery box containing a package will be described.
First, the authority information is written in the non-contact type memory 23 of the battery pack 20 using the key management device 200.
Next, the battery pack 20 is inserted into the battery pack mounting hole 335a of the electric lock 30. When the electronic pack 20 is mounted in the battery pack mounting hole 335a and positioned, the memory side antenna coil 23b of the non-contact type memory 23 is wound around the read/write antenna coil 33 in the vicinity of the read/write antenna coil 33. The imaginary plane parallel to the direction and the imaginary plane parallel to the winding direction of the memory side antenna coil 23b are surely located at positions substantially parallel to each other, and at the same time, the first terminal 25 of the battery pack 20 and the electric lock 30. The first terminal 47 of the battery pack 20 is reliably connected, and the second terminal 27 of the battery pack 20 and the second terminal 49 of the electric lock 30 are connected. Then, the DC current is supplied from the battery 21 to the control unit 31 via the stabilizing power supply 45, and the CPU 311 of the control unit 31 is driven.

Then, the driven CPU 311 reads out and executes the electric lock use start program 313a from the ROM 313.
First, in order to confirm whether or not the joint shaft 332 is in the locked position, it is confirmed whether or not the long shaft confirmation switch 326 is ON (S10). If the joint shaft 332 is not in the locked position, the display means 43 gives a notice to that effect (S15) and prompts the user to move the joint shaft 332 to the locked position.

If the joint shaft 332 is in the locked position (S10: YES), the CPU 311 reads the authority information stored in the non-contact type memory 23 by the read/write antenna coil 33 (S11).
The CPU 311 authenticates the read authority information (S12). If the authentication is successful (S12: YES), the electric lock 30 is locked, and the battery pack 20 is fixed by the fixing means 35 in the battery pack mounting hole 335a while being positioned (S13).
Since the battery pack 20 is fixed in the positioned state, power is stably supplied to the control unit 31 even when an external force such as shock or vibration is applied to the electric lock 30, and the non-contact type It is possible to prevent the reading error of the information stored in the memory 23, and to stably read and write the information with the non-contact type memory 23.
Then, the unlocking time is stored in the non-contact type memory 23 via the read/write antenna coil 33 and the memory-side antenna coil 23b (S14), and the electric lock use start program 313a ends.
When the authentication of the authority information has failed (S12: NO), an error notification is given on the display means 43 (S16), and the electric lock use start program 313a ends.

During delivery of the locked package, the control unit 31 sets the position information of the electric lock 30 acquired by the position information acquisition unit 37 and the electric lock 30 measured by the temperature sensor 39 at predetermined time intervals. The temperature information of the atmosphere can be written in the non-contact type memory 23 via the read/write antenna coil 33 and the memory side antenna coil 23b. Since the battery pack 20 is fixed in the battery pack mounting hole 335a in a positioned state, it is possible to stably write information in the non-contact type memory 23. The predetermined time may be every few minutes, every few hours, or may be constant.

By confirming the position information stored in the non-contact type memory 23, it is possible to confirm the delivery route, and it is possible to manage whether or not fraud has occurred during delivery. Further, when the package is stored and delivered in a container kept at a constant temperature, by checking the temperature information stored in the non-contact type memory 23, whether the temperature is definitely kept constant or not. It becomes possible to confirm. For example, by using the key management device 200 described above, it is possible to collectively manage the remaining battery level, position information, temperature information, etc., and it is easy to manage the electric lock system 1.
Further, the wireless communication unit 36 sends the position information of the electric lock 30 acquired by the position information acquisition unit 37 and the temperature information of the atmosphere in which the electric lock 30 is placed measured by the temperature sensor 39 to the management server of the distribution center or the like. It is also possible to send.

The information written in the non-contact type memory 23 during delivery of the package is not limited to the above position information and temperature information. For example, if a three-axis acceleration sensor is connected to the control unit 31, the degree of inclination of the package can be determined. It is possible to record, and it is possible to record the information to be recorded in the non-contact type memory 23 by using various sensors such as an atmospheric pressure detection sensor, an infrared sensor, a radiation sensor, etc. depending on the application. ..

Next, the case where the locked package reaches the consignee and the consignee unlocks the electric lock 30 will be described.
First, the consignee inputs the password for unlocking the input means 41 (S20). Here, the password has been notified to the consignee by e-mail or the like in advance. The input password is transmitted to the CPU 311 as a control signal, and the CPU 311 having received the control signal reads the authority information stored in the non-contact type memory 23 by the read/write antenna coil 33 (S21). Then, the CPU 311 authenticates the input password and the read authority information (S22).

When the authentication of the authority information has failed (S22: NO), an error notification is given on the display means 43 (S26), and the electric lock use stop program 313b ends.
If the authentication is successful (S22: YES), the electric lock 30 is unlocked (S23), and the unlocking time is stored in the non-contact type memory 23 (S24). Then, the fixing of the battery pack 20 by the fixing means 35 is released (S25), and the electric lock use stop program 313b ends.

The battery pack 20 whose fixation has been released can be removed from the electric lock 30, and the delivery company collects it together with the electric lock 30. The collected battery pack 20 can be charged by the key management device 200 at a distribution center or the like, read the information stored in the non-contact type memory 23, and manage the read information.
When the electric lock 30 is locked and the battery pack 20 is fixed to the electric lock 30 by the fixing means 35, the fixation by the fixing means 35 is not released until the electric lock 30 is unlocked. The electric lock 30 and the battery pack 20 are always integrated. Since the electric lock 30 and the battery pack 20 are always integrated during the transportation of the luggage, it is not necessary for the truck driver to separately manage the battery pack 20 during the transportation of the luggage. Even when multiple trucks need to be relayed for transportation such as when transporting luggage to a remote location, the battery pack 20 is not transferred between the drivers each time relaying is performed, and the delivery work is performed. The efficiency of the battery pack 20 is reduced, and the risk of losing the battery pack 20 is solved.

As described above, according to the electric lock system 1 of the first embodiment,
(1) An electric lock system including a battery pack 20 as an electronic key, and an electric lock 30 including a control unit 31 that locks or unlocks by reading and authenticating authority information stored in the battery pack 20. 1, the battery pack 20 includes a battery 21 and a non-contact type memory 23 including a memory-side antenna coil 23b, and the electric lock 30 includes a battery pack mounting hole 335a for mounting the battery pack 20 and a control. And a read/write antenna coil 33 connected to the portion 31, the battery pack 20 is positioned in the electric lock 30 by being mounted in the battery pack mounting hole 335a, and the memory side antenna coil 23b is a lead. An imaginary plane parallel to the winding direction of the read/write antenna coil 33 and an imaginary plane parallel to the winding direction of the memory side antenna coil 23b are positioned in the vicinity of the write antenna coil 33 so as to face each other substantially in parallel. In addition, the control unit 31 is connected to the battery 21 and receives power supply, and the control unit 31 that receives power supply from the battery 21 passes through the read/write antenna coil 33 and the memory side antenna coil 23b. Since information is read from and written to the non-contact type memory 23, useless battery consumption can be prevented by preventing a read error of the non-contact type memory 23.

That is, when the battery pack 20 is attached to the electric lock 30 and positioned, the control unit 31 is connected to the battery 21 and receives the power supply. Therefore, the read/write antenna coil 33 and the memory side antenna coil 23b are connected. Information can be read from and written to the non-contact type memory 23 via the. The memory-side antenna coil 23b is provided in the vicinity of the read/write antenna coil 33 so that information can be reliably read/written between the read/write antenna coil 33 and the non-contact memory 23. Since the virtual plane parallel to the winding direction of the coil 33 and the virtual plane parallel to the winding direction of the memory-side antenna coil 23b are located at positions substantially parallel to each other, the magnetic field range of the read/write antenna coil 33 is reduced. The non-contact type memory 23 is displaced, or the non-contact type memory 23 is momentarily brought close to the read/write antenna coil 33. For example, the stay time of the non-contact type memory 23 near the read/write antenna coil 33 is short. Alternatively, the reading/writing of information is instantaneously performed without causing a reading error due to the angle of the non-contact type memory 23 with respect to the read/write antenna coil 33 not being parallel. Therefore, it is not necessary to read again when a read error occurs, and it is possible to prevent wasteful power consumption.

(3) In the electric lock system 1 according to (1), the electric lock 30 includes a fixing unit 35 that fixes the battery pack 20 in a state of being positioned in the electric lock 30. Therefore, even when an external force such as shock or vibration is applied to the electric lock 30, the electric lock 30 and the battery pack 20 are stably connected.
That is, since the battery pack 20 is mounted in the battery pack mounting hole 335a and positioned, the control unit 31 is connected to the battery 21 and the read/write antenna coil 33, so that the battery pack 20 is positioned. By being fixed by the fixing means 35, even when an external force such as impact or vibration is applied to the electric lock 30, electric power is stably supplied to the control unit 31 and stored in the non-contact type memory 23. It is possible to stably read/write information from/to the non-contact type memory 23, for example, to prevent information reading error.

(4) In the electric lock system 1 according to (3), the non-contact memory 23 stores authority information, and the electric lock 30 sends a control signal for controlling the electric lock 30 to the control unit 31. The read/write antenna coil 33, the memory side antenna coil 23b, and the control unit 31 are provided with the input unit 41 for inputting, and the battery pack 20 is attached to the electric lock 30 and is supplied with power from the battery 21. The authority lock information is read from the non-contact type memory 23 through the authentication, authentication is performed, the electric lock 30 is locked, and the fixing means 35 fixes the battery pack 20. When the electric lock 30 is attached and the electric lock 30 is locked, and when a control signal is input to the control unit 31 by the input unit 41, the read/write antenna coil 33 and the memory side An electric lock use stop program for reading authority information from the non-contact type memory 23 through the antenna coil 23b, performing authentication, unlocking the electric lock 30, and unlocking the battery pack 20 by the fixing means 35. 313b and 313b are provided, the driver does not need to manage the battery pack 20 during transportation of the luggage, and the battery pack 20 can be prevented from being lost.

When an electronic key is used for unlocking like the electronic padlock disclosed in Patent Document 1, it is necessary to send the electronic key to the package receiver. If the electronic key is sent separately from the package, the arrival of the electronic key may be delayed from the package, so it is necessary to deposit the electronic key with the package delivery person. Then, the delivery person must separately manage the electronic key in addition to the management of the package to be delivered, which may reduce the efficiency of the delivery work. In particular, when transporting luggage to remote areas, multiple trucks relay and transport, so the electronic key is handed over between the drivers each time relaying is performed, making it more difficult to manage the electronic key. There is a risk of becoming. In addition, if the electronic key is lost, the package receiver may not be able to unlock the delivery box.

In the present embodiment, the battery pack 20 is fixed to the electric lock 30 by the fixing means 35, and the fixation by the fixing means 35 is not released until the electric lock 30 is unlocked. The battery pack 20 is always integrated. Since the electric lock 30 and the battery pack 20 are always integrated during the transportation of the luggage, it is not necessary for the truck driver to separately manage the battery pack 20 during the transportation of the luggage. Even when multiple trucks need to be relayed for transportation such as when transporting luggage to a remote location, the battery pack 20 is not transferred between the drivers each time relaying is performed, and the delivery work is performed. The efficiency of the battery pack 20 is reduced, and the risk of losing the battery pack 20 is solved.

(5) In the electric lock system 1 described in any one of (1), (3), and (4), the electric lock 30 includes a position information acquisition unit 37 that acquires position information of the electric lock 30. The unit 31 writes the position information acquired by the position information acquiring unit 37 in the non-contact type memory 23 via the read/write antenna coil 33 and the memory-side antenna coil 23b every predetermined time. Since this is a feature, simple information management is possible only by managing the battery pack 20.
That is, when the battery pack 20 is attached to the electric lock 30, the control unit 31 that receives power supply from the battery 21 of the battery pack 20 causes the read/write antenna coil 33 and the memory-side antenna coil 23b to intervene. The position information acquired by the position information acquisition means 37 is written in the non-contact type memory 23 of the battery pack 20. The position information can be managed together with the battery remaining amount management of the electric lock system 1, and it is easy to manage the electric lock system 1 in a distribution center or the like.

(6) In the electric lock system 1 according to any one of (1), (3) to (5), the electric lock 30 includes a temperature sensor 39 capable of measuring an ambient temperature, and the control unit 31 includes Since the temperature information measured by the temperature sensor 39 is written into the non-contact type memory 23 via the read/write antenna coil 33 and the memory side antenna coil 23b at every predetermined time, By simply managing the battery pack 20, simple information management is possible.
For example, luggage that must be kept at a low storage temperature, or luggage that must be kept at a storage temperature within the range of 60 to 70 degrees, such as lunch, etc. Since there is a risk of burns above 70 degrees, it is regulated as 60 to 70 degrees), and temperature control is under the responsibility of the shipping company. It is necessary to manage the temperature information during transportation in order to prove whether or not there was any abnormality in the temperature during transportation, such as when food poisoning should occur during lunch. Therefore, a container for delivering food is locked by an electric lock 30 equipped with a temperature sensor 39 capable of measuring the ambient temperature, and the container is set to a temperature between 60 degrees and 70 degrees. If the battery pack 20 is attached to the electric lock 30, the control unit 31 that is supplied with power from the battery of the battery pack 20 causes the read/write antenna coil 33 and the memory side antenna coil to be delivered. 23b, the temperature information measured by the temperature sensor 39 can be written in the non-contact type memory 23 of the battery pack 20 at predetermined time intervals. Can manage.

(7) In the electric lock system 1 described in any one of (1), (3) to (6), the electric lock system 1 for luggage transportation charges the battery 21 by mounting the battery pack 20. The key management device 200 is capable of reading and writing information from and to the non-contact type memory 23.
The conventional electronic padlock disclosed in Patent Document 1 includes a battery for driving the control unit and a history storage unit for storing history, so that the battery remaining amount is managed and the electronic padlock is used. It is necessary to regularly manage history information by connecting a padlock to the USB port. Further, in the electronic key, it is necessary to manage permission information and effective time information for unlocking and locking the electronic padlock. Therefore, in a distribution center or the like, a management system must be prepared for both the electronic padlock and the electronic key in order to manage the remaining battery level and information, which is troublesome.
According to the present embodiment, for example, if the key management device 200 can be connected to an electronic device such as a smartphone or a personal computer through a USB port, the battery 21 of the battery pack 20 can be charged while the non-contact memory is used. 23, it is possible to store authority information for locking or unlocking the electric lock 30 and read the stored history information and the like, and manage information of the electric lock system 1 at a distribution center or the like. Is easy.

Next, a second embodiment of the electric lock system 1 of the present invention will be described in detail with reference to the drawings. Note that only the points different from the first embodiment will be described.
<Battery pack configuration>
The battery pack 50 will be described. Similar to the first embodiment, the battery pack 50 is used as an electronic key for locking or unlocking the electric lock 60. As shown in FIG. 9, the battery pack 50 is a battery pack including a battery 21, a flat-plate non-contact memory 23, and a read/write antenna coil 33. The non-contact type memory 23 is positioned adjacent to the read/write antenna coil 33 so that the read/write antenna coil 33 can easily read/write information from/to the non-contact type memory 23. That is, the memory side antenna coil 23b of the non-contact type memory 23 has a virtual plane parallel to the winding direction of the read/write antenna coil 33 and a winding of the memory side antenna coil 23b in the vicinity of the read/write antenna coil 33. The virtual plane parallel to the direction is located at a position substantially opposite to the virtual plane. In the present embodiment, the non-contact type memory 23 is fixed to the read/write antenna coil 33 with a double-sided tape. There is. By sticking and fixing with double-sided tape, it is possible to read and write information stably even if vibration or shock is applied during transportation of luggage. Note that it is not always necessary to use a double-sided tape, and a method of fixing with an adhesive can be considered.

Due to such a positional relationship between the read/write antenna coil 33 and the memory-side antenna coil 23b, the non-contact memory 23 may be displaced from the magnetic field range of the read/write antenna coil 33, or the non-contact memory 23 may be displaced. Is momentarily brought close to the read/write antenna coil 33, the stay time in the vicinity of the read/write antenna coil 33 of the non-contact type memory 23 is short, and the angle of the non-contact type memory 23 with respect to the read/write antenna coil 33 is small. Reading and writing of information can be performed instantaneously without causing a reading error due to inappropriateness. Therefore, it is not necessary to read again when a read error occurs, and it is possible to prevent wasteful power consumption.
The distance between the non-contact memory 23 and the read/write antenna coil 33 is preferably within 10 cm. This is because the magnetic field of the read/write antenna coil 33 is around 10 cm, so that if the non-contact type memory 23 is outside the range, reading and writing of information may not be stably performed.

Further, the battery pack 50 is inserted into the battery pack mounting hole 335a of the electric lock 60 and positioned in the battery pack mounting hole 335a, as in the first embodiment. The battery pack 50 includes a first terminal 25 and a second terminal 27, and by connecting the first terminal 47 and the second terminal 49 inside the battery pack mounting hole 335a, the read/write antenna coil 33 controls the control unit. While being connected to the battery 31, the battery 21 supplies a direct current to the controller 31 of the electric lock 60. Upon receiving the supply of the direct current, the control unit 31 reads/writes information from/to the non-contact type memory 23 via the read/write antenna coil 33 and the memory side antenna coil 23b by a high frequency signal. The high frequency signal is superposed on the direct current between the battery pack 50 and the electric lock 60 and supplied to both.

Similar to the first embodiment, the battery pack 50 can be managed by the key management device 200 as shown in FIG. 7, for example. However, in this embodiment, if the terminals 203 and 204 are used to exchange high-frequency signals by superimposing them on the current, the non-contact type memory reading section 202 is not provided, and information is stored in the non-contact type memory 23. It is possible to read and write.

<Structure of electric lock>
In the second embodiment, as described above, the read/write antenna coil 33 is built in the battery pack 50, and the high frequency signal is superimposed on the direct current and exchanged between the electric lock 60 and the battery pack 50. Therefore, unlike the first embodiment, the reading unit 33a is not provided inside the battery pack mounting hole 335a. When the battery pack 50 is inserted into the battery pack mounting hole 335a, the battery pack 50 is positioned in the battery pack mounting hole 335a, and the first terminal 25 and the second terminal 27 of the battery pack 50 are securely connected to the electric lock 60. The first terminal 47 and the second terminal 49 are connected.
Other configurations are the same as those of the electric lock 30 according to the first embodiment.

<Circuit configuration of electric lock system>
The battery pack 50 has an electric circuit shown in FIG. This electric circuit includes a battery 21, a read/write antenna coil 33, key-side inductance coils 28A and 28B, key-side capacitors 29A and 29B, and a non-contact type memory 23.
The first terminal 25 is connected to the positive electrode side of the battery 21, and the second terminal 27 is connected to the negative electrode side of the battery 21. A key-side inductance coil 28A is provided on the electric wire that connects the first terminal 25 and the positive pole of the battery 21, and a key-side inductance coil 28B is provided on the electric wire that connects the second terminal 27 and the negative pole of the battery 21. Has been.
Further, a branch point of the electric wire is provided between the first terminal 25 and the key side inductance coil 28A and between the second terminal 27 and the key side inductance coil 28B, and the read/write antenna coil 33 is provided on the branched electric wire. It is connected. The key side capacitors 29A and 29B are provided between the branch point and the read/write antenna coil 33.

The electric circuit shown in FIG. 8 is configured in the electric lock 60. This electric circuit includes lock-side inductance coils 50A and 50B, lock-side capacitors 51A and 51B, and a stabilizing power supply 45. Specifically, the capacitor 51A is provided on the electric wire connecting the first terminal 47 and the NFC 317, and the capacitor 51B is provided on the electric wire connecting the second terminal 49 and the NFC 317. Further, an inductance coil 50A is provided on an electric wire connecting the first terminal 47 and the capacitor 51A to the stabilized power supply 45, and an inductance coil 50B is connected to an electric wire connecting the second terminal 49 and the capacitor 51B to the stabilized power supply 45. Is provided.
The lock-side inductance coils 50A and 50B are electronic components that pass a DC power source and block high-frequency signals. The lock-side capacitors 51A and 51B are electronic components that pass a high-frequency signal while cutting off the DC power supply. The stabilized power supply 45 is a power supply circuit that is controlled so that the output voltage of the DC power supply always has a constant value, and is connected to the control unit 31.

As described above, between the battery pack 50 and the electric lock 60 of the present embodiment, the electric circuit of the battery pack 50 and the electric circuit of the electric lock 60 are connected by the two terminals, and the high frequency signal and the DC power supply are connected. An electric circuit for superposing and separating
The purpose of superimposing a high-frequency signal on the DC current is to reduce the number of contacts between the battery pack 50 and the electric lock 60, reduce the risk of malfunctions at the contacts, and stabilize the connection between the battery pack 50 and the electric lock 60. To secure.

More specifically, in order to supply power to the control unit 31 and read/write information from/to the non-contact type memory 23 between the battery pack 50 and the electric lock 60 without superimposing a high frequency signal on the DC current. It is necessary to connect the battery pack 50 and the electric lock 60 with four contacts, as shown in FIG. That is, a battery for exchanging high frequency signals with the first terminal 25, the second terminal 27 of the battery pack 50 and the first terminal 47, the second terminal 49 of the electric lock 60 connected to these for supplying power. The third terminal 61 and the fourth terminal 62 of the pack 50 and the third terminal 63 and the fourth terminal 64 of the electric lock 60 connected to these are required. When the number of contacts increases, the probability of slight sliding wear between the contacts due to vibrations and shocks during transportation increases, resulting in poor connection. For example, terminals for power supply are connected, and power is supplied from the battery 21. Even if it has been removed, there is a possibility that a contact failure occurs at the terminal for transmitting and receiving the high frequency signal, and the high frequency signal cannot be transmitted and received. Therefore, in the present invention, a high-frequency signal is superimposed on the direct current, and two contacts (the first terminal 25 and the second terminal 27 of the battery pack 50 and the first terminal 47 and the first terminal 47 of the electric lock 60 connected to these contacts) are provided. The battery pack 50 and the electric lock 60 are connected only by the two terminals 49). With this configuration, if the two contacts are connected, it is possible to reliably supply power and exchange high-frequency signals, and it is possible to ensure connection stability.
Other configurations are similar to those of the first embodiment.

<Operation of electric lock system>
The electric lock system 1 having such a configuration operates as follows.
First, a case where the electric lock 60 is used to lock a bag or a delivery box containing a package will be described.
First, similar to the first embodiment, the key management device 200 writes the unlock authority information in the non-contact memory 23 of the battery pack 50.

Next, the battery pack 50 is inserted into the battery pack mounting hole 335a of the electric lock 60. The first terminal 25 of the battery pack 50 is connected to the first terminal 47 of the electric lock 60, and the second terminal 27 of the battery pack 50 is connected to the second terminal 49 of the electric lock 60. In this way, the digital key 11 and the digital lock 12 are connected by the two terminals.

Then, since the inductance coil passes the DC power source, the DC power source from the battery 21 of the battery pack 50 passes through the key side inductance coils 28A and 28B and the lock side inductance coils 50A and 50B, and the stabilized power source 45 is further supplied. It is sent to the control unit 31 via. On the other hand, since the capacitor does not pass the DC power, the DC power from the battery 21 of the battery pack 50 is cut off by the key side capacitors 29A and 29B and the lock side capacitors 51A and 51B, and the read/write antenna coil 33 and the NFC 317. Can not be sent to. In this way, the CPU 311 is driven by receiving the DC power supply from the battery 21.
Then, the driven CPU 311 reads out and executes the electric lock use start program 313a from the ROM 313. The operation content of the electric lock utilization start program 313a is similar to that of the first embodiment (see FIG. 5).

The NFC 317 communicates a high-frequency signal (a signal having a frequency of 13.56 MHz, for example) with the non-contact type memory 23 via the read/write antenna coil 33, and the solution stored in the non-contact type memory 23. Get lock authority information. Here, since the capacitor passes the high frequency signal, the high frequency signal passes between the key side capacitors 29A and 29B and the lock side capacitors 51A and 51B and is transmitted between the NFC 317 and the read/write antenna coil 33. .. On the other hand, since the inductance coil does not pass the high frequency signal, the high frequency signal is blocked by the key side inductance coils 28A, 28B and the lock side inductance coils 50A, 50B and is not transmitted to the battery 21 and the stabilized power supply 45. Then, the CPU 311 authenticates the unlocking authority information thus read.

That is, in the present embodiment, the DC power from the battery 21 of the battery pack 50 and the high-frequency signal sent from the non-contact type memory 23 via the read/write antenna coil 33 are superimposed on the electric circuit so as to superimpose the battery. After being sent from the pack 50 to the electric lock 60, the DC power source and the high frequency signal are separated and sent to the CPU 311 and the NFC 317.

During the delivery of the locked package, the control unit 31 causes the position information of the electric lock 60 acquired by the position information acquisition unit 37 and the atmosphere in which the electric lock 60 is measured by the temperature sensor 39 to be placed at predetermined intervals. Is similar to the electric lock system 1 according to the first embodiment in that the temperature information of the battery pack can be written in the non-contact memory 23 via the read/write antenna coil 33. Since it is fixed in the mounting hole 335a in a positioned state, it is possible to stably write information in the non-contact type memory 23.
Further, when the locked package reaches the consignee and the consignee unlocks the electric lock 60, the operation content of the electric lock use suspension program 313b is the same as that of the electric lock system 1 according to the first embodiment. Yes (see FIG. 6).

As described above, according to the electric lock system 1 of the second embodiment,
(2) An electric lock system including a battery pack 50 as an electronic key and an electric lock 60 including a control unit 31 that locks or unlocks by reading and authenticating authority information stored in the battery pack 50. 1, the battery pack 50 includes a battery 21, a non-contact type memory 23 having a memory side antenna coil 23b, and a read/write antenna coil 33. The memory side antenna coil 23b is a read/write antenna. Near the coil 33, a virtual plane parallel to the winding direction of the read/write antenna coil 33 and a virtual plane parallel to the winding direction of the memory-side antenna coil 23b are located at positions substantially parallel to each other. The electric lock 60 includes a battery pack mounting hole 335a for mounting the battery pack 50, and the battery pack 50 is positioned in the electric lock 60 by being mounted in the battery pack mounting hole 335a, and the read/write antenna coil is installed. 33 and the control unit 31 are connected, the control unit 31 is connected to the battery 21, and the battery 21 supplies power to the control unit 31 by a direct current, and the control unit 31 receives power supply from the battery 21. Information is read/written by a high frequency signal between the non-contact type memory 23 via the read/write antenna coil 33 and the memory side antenna coil 23b. The high frequency signal is stored in the battery pack 50 and the electric lock. Between 60 and 60, a direct current is superposed and supplied to both of them, so that a reading error of the non-contact type memory 23 can be prevented, and wasteful battery consumption can be prevented.

That is, when the battery pack 50 is mounted and positioned in the battery pack mounting hole 335a of the electric lock 60, the antenna coil 33 for read/write and the battery 21 are securely connected. Since the control unit 31 connected to the battery 21 is supplied with power, it becomes possible to read/write information from/to the non-contact type memory 23 via the read/write antenna coil 33 and the memory side antenna coil 23b. Then, in the battery pack 50, the memory-side antenna coil 23b is arranged in the vicinity of the read/write antenna coil 33 so that reading/writing of information is surely performed between the read/write antenna coil 33 and the non-contact type memory 23. In addition, since the virtual plane parallel to the winding direction of the read/write antenna coil 33 and the virtual plane parallel to the winding direction of the memory side antenna coil 23b are located substantially parallel to each other, The read/write antenna coil of the non-contact type memory 23 is such that the non-contact type memory 23 is displaced from the range of the magnetic field of the antenna coil 33 or the non-contact type memory 23 is momentarily brought close to the read/write antenna coil 33. Reading and writing of information is instantaneously performed without causing a reading error due to a short staying time in the vicinity of 33 or the angle of the non-contact memory 23 with respect to the read/write antenna coil 33 being not parallel. Therefore, it is not necessary to read again when a read error occurs, and it is possible to prevent wasteful power consumption.
If the non-contact type memory 23 is in contact with the read/write antenna coil 33, no matter where the non-contact type memory 23 and the read/write antenna coil 33 are built in the battery pack 50, The reading and writing of is good, there are few errors, and no wasted power is consumed.

(3) In the electric lock system 1 according to (1), the electric lock 60 includes a fixing unit 35 that fixes the battery pack 50 in a state of being positioned in the electric lock 60. Therefore, even when an external force such as shock or vibration is applied to the electric lock 60, the electric lock 60 and the battery pack 50 are stably connected.
That is, when the battery pack 50 is mounted in the battery pack mounting hole 335a and positioned, the control unit 31 is connected to the battery 21 and the read/write antenna coil 33, so that the battery pack 50 is positioned. By being fixed by the fixing means 35, even when an external force such as shock or vibration is applied to the electric lock 60, electric power is stably supplied to the control unit 31 and stored in the non-contact type memory 23. It is possible to stably read/write information from/to the non-contact type memory 23, for example, to prevent information reading error.

(4) In the electric lock system 1 according to (3), the non-contact type memory 23 stores authority information, and the electric lock 60 sends a control signal for controlling the electric lock 60 to the control unit 31. The input unit 41 for inputting is provided, and the control unit 31 includes the read/write antenna coil 33, the memory side antenna coil 23b, and the battery pack 50 mounted on the electric lock 60 and supplied with power from the battery 21. The electric lock utilization start program 313a for reading the authority information from the non-contact type memory 23 through the user, performing authentication, locking the electric lock 60, and fixing the battery pack 50 by the fixing means 35, and the battery pack 50. When the electric lock 60 is attached to the electric lock 60 and the electric lock 60 is in the locked state, and the control signal is input to the control unit 31 by the input unit 41, the read/write antenna coil 33 and the memory side An electric lock use stop program for reading authority information from the non-contact type memory 23 through the antenna coil 23b, performing authentication, unlocking the electric lock 60, and unlocking the battery pack 50 by the fixing means 35. 313b and 313b are provided, so that the driver does not need to manage the battery pack 50 during the transportation of luggage, and the battery pack 50 is prevented from being lost, as in the first embodiment. be able to.

(5) In the electric lock system 1 described in any one of (2) to (4), the electric lock 60 includes a position information acquisition unit 37 that acquires its own position information, and the control unit 31 includes: The position information acquired by the position information acquisition means 37 is written into the non-contact type memory 23 via the read/write antenna coil 33 and the memory side antenna coil 23b every predetermined time. As with the first embodiment, simple management of information is possible only by managing the battery pack 50.

(6) In the electric lock system 1 according to any one of (2) to (5), the electric lock 60 includes a temperature sensor 39 capable of measuring an ambient temperature, and the control unit 31 has a predetermined time. Since the temperature information measured by the temperature sensor 39 is written in the non-contact type memory 23 via the read/write antenna coil 33 and the memory side antenna coil 23b for each time, the first embodiment is performed. Similar to the form, by simply managing the battery pack 50, simple information management is possible.

(7) In the electric lock system 1 according to any one of (2) to (6), the electric lock system 1 for luggage transportation can charge the battery 21 by mounting the battery pack 50. Since the key management device 200 capable of reading/writing information from/to the non-contact type memory 23 is provided, similar to the first embodiment, for example, the key management device 200 is a smartphone or a personal computer. If it is connectable to an electronic device such as a USB port, the authority information for locking or unlocking the electric lock 60 is stored in the non-contact type memory 23 while charging the battery 21 of the battery pack 50. It is possible to store or read out the stored history information and the like, and the information management of the electric lock system 1 at the distribution center or the like becomes simple.

Next, a third embodiment of the electric lock system 1 of the present invention will be described in detail with reference to the drawings. Only points different from the electric lock system 1 according to the first embodiment and the second embodiment will be described.
The electric lock system 1 according to the third embodiment is used in a state in which an electric lock 90 is incorporated in a locked package 100 that is a delivery box, as shown in FIG. 10.

In the locked luggage 100, a bottomed box-shaped main body 101 has an opening 101b formed along an edge thereof. The main body 101 is fixed by a hinge member 109 or the like at the rear portion 102a of the lid 102, and the lid 102 is configured to open and close the opening portion 101b. Inside the lid 102, a hooking portion 190 is formed in which a hooking hole 192 that fits with a hook portion 913a dictated when locking the electric lock 90 is formed. The lid 102 is closely attached so that no gap is formed along the edge of the opening 101b. The lid 102 has a rectangular parallelepiped shape when it is closed so that no gap is formed along the edge of the opening 101b. Note that the locked luggage 100 may be capable of keeping the internal temperature low, such as a cooler box.

In the locked luggage 100, the front part of the electric lock 90 provided with the display means 43, the input means 41, and the battery pack mounting hole 90a for mounting the battery pack 80 is exposed on the front part 101a of the main body 101. ing. Further, the front part 101a is provided with an optional carrying means 112. The handbag 112 has a recess 113 formed by partially burying the front surface 101a inside, and a handle 114 is rotatably mounted therein. The handle 114 is housed in the recess 113 so as not to project from the front part 101a when the locked luggage 100 is stored, and allows the locked luggage 100 to be stacked without interfering with other members. Then, when carrying the locked luggage 100, the handle portion 114 stands up from the inside of the recess 113 and is gripped by the user. It should be noted that such a carrying means 112 may be provided on the top surface of the lid 102.

<Structure of electric lock>
The electric lock 90 is a surface lock that can be retrofitted to the locked luggage 100. By using the surface lock, the security can be improved because the lock can be attached to an existing locked baggage.
As shown in FIG. 10, a display unit 43, an input unit 41, and a battery pack mounting hole 90a for mounting a battery pack 80 as a battery pack are formed on the front surface of the electric lock 90. .. Inside the battery pack mounting hole 90a, there are provided a first terminal 47, a second terminal 49, a reading unit 33a (see FIG. 12) having the read/write antenna coil 33 built therein, and a fixing means 35 (see FIG. 12). I have it. When the battery pack 80 is inserted into the battery pack mounting hole 90a, the battery pack 80 is positioned in the battery pack mounting hole 90a, and the first terminal 25 and the second terminal 27 of the battery pack 80 are the first terminals of the electric lock 30. 47 and the second terminal 49 are securely connected, and the non-contact type memory 23 of the battery pack 80 is reliably positioned near the read/write antenna coil 33 at a position facing each other. Then, the fixing means 35 fixes the battery pack 80 in the battery pack mounting hole 90a in a positioned state. Since the battery pack 80 is fixed in the positioned state, even if an external force such as impact or vibration is applied to the electric lock 90, the power is stably supplied to the control unit 31 and the non-contact type is used. It is possible to prevent the reading error of the information stored in the memory 23, and to stably read and write the information with the non-contact type memory 23.

Of the electric lock 90, the parts other than the front part do not appear on the surface of the locked luggage 100 and are housed inside. As shown in FIG. 11, a temperature sensor 39 and a rotating member 913 that rotates around a shaft 918 (see FIG. 12) are formed on the back surface of the electric lock 90.
The temperature sensor 39 is exposed inside the locked luggage 100 and can measure the temperature inside the locked luggage 100. For example, temperature management is performed under the responsibility of the delivery company, for example, for organs to be used for organ transplantation, for packages that must be kept at a low temperature inside the locked package 100. In this case, in order to prove whether or not the internal temperature of the locked luggage 100 can be kept at a low temperature like a cooler box and the internal temperature of the locked luggage 100 is kept at a low temperature during sending. , It is necessary to manage the temperature information during transportation. Therefore, the temperature sensor 39 is placed inside the locked luggage 100 whose inside is kept at a low temperature, and the battery pack 80 is attached to the electric lock 90, so that the battery 21 of the battery pack 80 is powered by the power source. If the control unit 31 that receives the supply writes the temperature information measured by the temperature sensor 39 via the read/write antenna coil 33 to the non-contact type memory 23 of the battery pack 80, the battery of the electric lock system 1 will be described. The temperature information can be managed together with the remaining amount management, and it is easy to manage the electric lock system 1 at a distribution center or the like.

The rotating member 913 is provided with a hook portion 913a that can be fitted into the hooking hole 192 formed in the lid 102. When the rotating member 913 is in the position shown in FIG. 11, the hook portion 913a is fitted in the hooking hole 192 and the electric lock 90 is locked. When unlocking, the rotating member 913 rotates counterclockwise. Then, the hook portion 913a is disengaged from the hooking hole 192.

As shown in FIG. 12, a resin case 91 is mounted inside the electric lock 90.
Inside the case 91, a shaft 918 having a rotary member 913 coupled to one end is rotatably held. A hollow portion 915g is formed in the center of the case 91, and a motor 921 for rotating the rotation shaft 918, a motor gear 920 fixed to the rotation shaft of the motor 921, and a rotation shaft 918 are fixed to the rotation shaft 918. A detection plate 922 fixed to the left end portion of the rotary shaft gear 919 and the rotary shaft 918 in the drawing, which is engaged with the motor gear 920, and a detection plate 922 having a detection notch 922a, and a limit switch for detecting the detection notch 922a. The lock position detection switch 923 is housed. By mounting the battery pack 80 in the battery pack mounting hole 90a, the control unit 31 supplied with power from the battery 21 drives the motor 921 to rotate the rotary shaft 918 via the motor gear 920 and the rotary shaft gear 919. , The rotating member 913 connected to the rotating shaft 918 is rotated to the locked position or the unlocked position. Then, the detection notch 922a of the detection plate 922 turns on the locking position detection switch 923, and the control unit 31 can detect that the electric lock 90 is in the locked state.

Further, a lid confirmation switch 926, which is a limit switch for confirming that the lid 102 is closed by the sliding notch 924, is housed in the case 91. A notch sliding hole 915f for slidably holding a sliding notch 924 for detecting whether or not the lid 102 is closed is formed, and a biasing spring 925 is attached to the notch sliding hole 915f. The biasing spring 925 biases the sliding notch 924 upward in the drawing. When the lid 102 is closed, the lid 102 pushes and moves the sliding notch 924 downward in the drawing. Then, the lid confirmation switch 926 is turned on by the lower end of the sliding notch 924, and it is possible to confirm that the lid 102 is closed.
It should be noted that the wiring of the motor 321, the locking position detection switch 323, the long shaft confirmation switch 326, and the like, and the control unit 31 are omitted because they are complicated.

The circuit configuration is similar to that of the first embodiment (FIG. 1). However, the long shaft confirmation switch 326 in FIG. 1 is replaced with the lid confirmation switch 926.
In the present embodiment, the read/write antenna coil 33 is built in the electric lock 90. However, the read/write antenna coil 33 may be built in the battery pack 80 as in the second embodiment. .. When the read/write antenna coil 33 is built in the battery pack 80, the circuit configuration is the same as that of the second embodiment (FIG. 2). However, the long shaft confirmation switch 326 in FIG. 2 is replaced with the lid confirmation switch 926.

<Operation of electric lock system>
The operations of the electric lock use start program 313a and the electric lock use stop program 313b are as shown in FIGS. However, in S10, it is confirmed whether the lid 102 is open or closed. If the lid 102 is closed, the process proceeds to S11, and if it is not closed, a notice to that effect is issued in S15.

As described above, according to the electric lock system 1 of the third embodiment,
(6) In the electric lock system 1 according to any one of (1) to (5), the electric lock 30 includes a temperature sensor 39 capable of measuring an ambient temperature, and the control unit 31 has a predetermined time. Each time, the temperature information measured by the temperature sensor 39 is written in the non-contact type memory 23 via the read/write antenna coil 33 and the memory side antenna coil 23b. Simple management of information is possible only by performing management.
For example, temperature management is performed under the responsibility of the delivery company, for example, for organs to be used for organ transplantation and for packages that must be kept at a constant storage temperature. In this case, it is necessary to manage temperature information during transportation in order to prove whether or not the temperature was kept constant during transportation. Therefore, the temperature sensor 39 is placed inside the locked luggage 100 whose inside is kept at a constant temperature, and the battery pack 80 is attached to the electric lock 90 so that the battery 21 of the battery pack 80 is removed. The control unit 31 receiving the power supply writes the temperature information measured by the temperature sensor 39 via the read/write antenna coil 33 and the memory side antenna coil 23b to the non-contact type memory 23 of the battery pack 80. Then, it is possible to manage the battery level of the electric lock system 1 as well as the temperature information, and it is easy to manage the electric lock system 1 at a distribution center or the like.

The first, second, and third embodiments described above are merely examples, and do not limit the present invention. Therefore, the present invention is naturally capable of various improvements and modifications without departing from the scope of the invention.
For example, the forms of the electric locks 30, 60, 90 are not limited to the padlocks and the surface locks as in the above-mentioned embodiment, but can be applied to a padlock type padlock, a chain lock, and the like.

In addition, the electric lock system of the present invention can be applied to a ring lock attached to a rear wheel portion of a bicycle. In this case, for example, it may be used for locking a rental bicycle.
First, a user who rents a rental bicycle receives from the operator an electronic key (battery pack) having a built-in contactless memory in which authority information such as the rental validity period is written. The rental bicycle is locked with an electric lock, and when the user attaches the electronic key (battery pack) received from the operator to the electric lock, the control unit of the electric lock causes the read/write antenna coil and the memory. Read the authorization information via the side antenna coil. If the authority information is valid, the electronic key (battery pack) is fixed while attached to the electric lock, the electric lock is unlocked, and the user can use the rental bicycle. While the user is using the rental bicycle, the electronic key (battery pack) is attached to the electric lock, and the control unit continues to receive power supply. It is possible to write the position information and the like in the non-contact memory, or to transmit it to the operator's server by wireless communication means. When the user returns the rental bicycle, by pressing the lock button provided on the electric lock, the rental bicycle is locked and the fixing of the electronic key (battery pack) by the fixing means is released. The user returns the rental bicycle and at the same time returns the electronic key (battery pack) to the operator. The operator can charge the battery and manage the information written in the non-contact memory 23 by using the key management device for the electronic key (battery pack).

1 Electric lock system 20 Battery pack (an example of electronic key)
21 battery 23 non-contact type memory 23b memory side antenna coil 30 electric lock 31 control unit 33 read/write antenna coil 335a battery pack mounting hole (an example of mounting hole)

Claims (7)

In an electric lock system comprising an electronic key and an electric lock including a control unit for locking or unlocking by reading and authenticating authority information stored in the electronic key,
The electronic key includes a battery and a non-contact type memory including a memory-side antenna coil,
The electric lock includes a mounting hole for mounting the electronic key, and a read/write antenna coil connected to the controller.
The electronic key is positioned in the electric lock by being mounted in the mounting hole, and the memory-side antenna coil is arranged in the vicinity of the read/write antenna coil and parallel to the winding direction of the read/write antenna coil. A virtual surface and a virtual surface parallel to the winding direction of the memory-side antenna coil are located at positions substantially parallel to each other, and the control unit is connected to the battery and supplied with power.
The control unit receiving power supply from the battery reads and writes information from and to the non-contact type memory via the read/write antenna coil and the memory-side antenna coil.
An electric lock system characterized by. In an electric lock system comprising an electronic key and an electric lock including a control unit for locking or unlocking by reading and authenticating authority information stored in the electronic key,
The electronic key includes a battery, a non-contact type memory including a memory-side antenna coil, and a read/write antenna coil,
The memory-side antenna coil has, in the vicinity of the read/write antenna coil, a virtual plane parallel to the winding direction of the read/write antenna coil and a virtual plane parallel to the winding direction of the memory-side antenna coil. Being located in parallel and facing each other,
The electric lock has a mounting hole for mounting the electronic key,
By mounting the electronic key in the mounting hole, the electronic key is positioned in the electric lock, the read/write antenna coil and the control unit are connected, and the control unit is connected to the battery, The battery supplies power to the control unit by direct current,
The control unit, which is supplied with power from the battery, reads and writes information by a high frequency signal between the non-contact type memory via the read/write antenna coil and the memory side antenna coil. thing,
The high-frequency signal is superimposed on the DC current between the electronic key and the electric lock and supplied to both.
An electric lock system characterized by. The electric lock system according to claim 1 or 2,
The electric lock comprises fixing means for fixing the electronic key in a state of being positioned in the electric lock,
An electric lock system characterized by. The electric lock system according to claim 3,
The contactless memory stores the authority information,
The electric lock comprises input means for inputting a control signal for controlling the electric lock to the control unit,
The control unit is
When the electronic key is attached to the electric lock and is supplied with power from the battery, the authority information is read from the non-contact memory via the read/write antenna coil and the memory-side antenna coil. An electric lock use start program for reading and authenticating the electric lock to a predetermined state and fixing the electronic key by the fixing means,
When the electronic key is attached to the electric lock and the control signal is input to the control unit by the input unit, the read/write antenna coil and the memory-side antenna coil, The authority information is read from the non-contact type memory via the authentication for authentication, the electric lock is restored from the predetermined state to the state before the start of use, and the electronic key is fixed by the fixing means. An electric lock use stop program to be released,
Having
An electric lock system characterized by. The electric lock system according to any one of claims 1 to 4,
The electric lock comprises position information acquisition means for acquiring position information of itself.
The control unit writes the position information acquired by the position information acquiring unit in the non-contact type memory via the read/write antenna coil and the memory-side antenna coil at predetermined time intervals. ,
An electric lock system characterized by. The electric lock system according to any one of claims 1 to 5,
The electric lock includes a temperature sensor capable of measuring an ambient temperature,
The control unit writes the temperature information measured by the temperature sensor in the non-contact type memory via the read/write antenna coil and the memory-side antenna coil at predetermined intervals.
An electric lock system characterized by. The electric lock system according to any one of claims 1 to 6,
The electric lock system includes a key management device capable of charging the battery by mounting the electronic key and reading/writing information from/to the non-contact type memory,
An electric lock system characterized by.

Images