JP2010281060A - Electronic key system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic key system capable of avoiding such an adverse situation that a person is locked out outdoors by getting out of a building without carrying an electronic key. <P>SOLUTION: An entrance door 16 is provided in the doorway 15 of the building 10; and a motion detection sensor is provided above a handle 19 in the entrance door 16. The motion detection sensor is a sensor for detecting the person's motion of being about to touch the handle 19. A footwear cupboard 14 is provided in the entrance 11; and the electronic key is stored on the footwear cupboard 14. A second communication portion 33 capable of communicating with the electronic key is provided in the entrance 11; and a communication area of the communication portion 33 is set to include the footwear cupboard 14. In the case where the motion detection sensor detects that the person is about to touch the handle 19 of the entrance door 16 and where an ID code signal from the electronic key is received by the second communication portion 33, a speaker 32 provides notification that the electronic key is left as it is in the building 10. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electronic key system.

  In a building such as a house, an electronic key system that uses an electronic key having a wireless function and automatically locks and unlocks the door when a resident who has the electronic key approaches the door of the building has been put into practical use. For example, Patent Document 1 discloses a system in which doors are unlocked and unlocked based on authentication using an electronic key carried by a resident. According to this, when the resident carrying the electronic key approaches the door to enter the building and enters the communication area of the communication device provided near the door, the identification information transmitted from the electronic key is transmitted to the communication device. Is received. Then, the building side authenticates whether or not it is a resident based on the identification information. When it is determined that the resident is a resident, the door is automatically unlocked. Thereby, since the door can be locked and unlocked without being directly operated manually, the convenience can be improved.

JP 2003-74256 A

  By the way, since the system of the above-mentioned patent document 1 is a structure which performs locking and unlocking based on authentication of an electronic key, when going out of a building without forgetting to carry an electronic key, the door is unlocked from the outdoor side. Can not do. Therefore, for example, when the user goes out without carrying the electronic key, there is a risk that the user will not be able to enter the building even if the user returns from the outside, and as a result, the user will be locked out outdoors.

  In addition, when going out of the building for a short time in order to do light work on the premises such as a garden or garage, it may be possible to go out of the building without carrying the electronic key. Even in this case, as in the case of going out, there may be an inconvenience of being locked out outdoors.

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an electronic key system capable of avoiding an inconvenient situation such as being locked out outdoors by going outside the building without carrying the electronic key. This is the main purpose.

  In order to solve the above-described problem, an electronic key system for a building according to a first aspect of the present invention provides an electronic key for transmitting unique identification information and a predetermined range near the entrance of the building as a communicable range between the electronic key and the electronic key. A first communication unit capable of communicating; and locking / unlocking means for locking / unlocking the entrance door that opens and closes the entrance based on identification information from the electronic key received by the first communication unit. In an electronic key system for a building, an outing determination unit that determines that a person is going out of the building through the doorway, and an undecided determination unit that determines whether or not the electronic key is left in the building The outside determination means determines that a person is going out of the building, and the leaving determination means determines that the electronic key is left in the building. Expediently, characterized in that it comprises a notification control means for notifying the notification unit to the effect that is the left, the.

  According to the present invention, when a person such as a resident is going out of the building through the doorway, if the electronic key is left in the building, the notification means indicates that the electronic key is left in the building. Informed. In this case, a person who wants to go outside from the building can know that he / she is not carrying the electronic key before going outside. An inconvenient situation such as being locked out can be avoided.

  In the electronic key system for a building of the second invention, in the first invention, communication with the electronic key is performed with a predetermined range in the building excluding the entrance / exit passage area provided around the entrance / exit as a communicable range. A second communication unit that is enabled, wherein the leaving determination means determines that the electronic key is left in the building based on the identification information from the electronic key received by the second communication unit. It is characterized by determining.

  When entering / exiting indoors / outdoors through the entrance / exit, it passes through a predetermined area (entrance / exit passage area) around the entrance / exit. It is difficult to assume that the electronic key is left in this entrance / exit passage area. Therefore, in the present invention, a predetermined range in the building excluding the entrance passage area is set as a communicable range of the second communication unit, and the electronic key is determined based on the identification information from the electronic key received through the second communication unit. It is decided to leave the building unattended. This is a practically preferable configuration when determining whether to leave the electronic key. In this case, if the communicable range of the second communication unit is set so as to include the place where the electronic key is normally left in the building, such as the storage location of the electronic key, It can be easily determined whether or not it is left in the building.

  The electronic key system for a building according to a third invention is the electronic key system for a building according to the second invention, wherein an indoor hall provided adjacent to the entrance is provided with a key storage area for storing the electronic key. The communication area is set so as to include at least the key storage area.

  In order to clarify the location of the electronic key and to improve the usability of the electronic key, it is considered to establish a key storage place (for example, on the entrance clog box) in the indoor hall near the entrance / exit. It is done. Here, when the key storage provided in the indoor hall is included in the communication area of the first communication unit and the electronic key is left in the key storage, the identification information transmitted from the electronic key is the first communication. It is assumed that the door is unlocked by the unit. In this case, since the entrance door is unlocked even when the electronic key is left in the key storage area, there is a possibility that the electronic key may be left outside while leaving the electronic key in the building. Therefore, in the present invention, focusing on this point, the communicable range of the second communication unit is set so as to include at least the key storage. Accordingly, when the electronic key is left in the key storage area, the notification means notifies that fact, so even if the door is unlocked by the left electronic key, the electronic key is not carried. It can prevent going out outdoors.

  A building electronic key system according to a fourth aspect of the present invention is the electronic key system for a building according to the first aspect, further comprising movement determination means for determining whether or not the electronic key is moving, wherein the neglect determination means is a determination result of the movement determination means. Based on the above, it is determined whether or not the electronic key is left in the building.

  Normally, when an electronic key is left in a building, the electronic key does not move and remains stationary. Therefore, in the present invention, it is determined whether or not the electronic key is moving, and it is determined whether or not the electronic key is left in the building based on the determination result. This is a practically preferable configuration when determining whether to leave the electronic key.

  According to a fifth aspect of the present invention, there is provided a building electronic key system according to the fourth aspect of the invention, further comprising vibration detection means for detecting vibrations of the electronic key, wherein the movement determination means is based on a detection result of the vibration detection means. It is characterized by determining whether the electronic key is moving.

  When the user carrying the electronic key is moving, vibration based on the movement is transmitted to the electronic key. Based on this viewpoint, in the present invention, it is determined whether or not the electronic key is moving based on the detection result of the vibration of the electronic key. Therefore, for example, when the electronic key is vibrating, it can be determined that the electronic key is moving, and when the electronic key is not vibrating, it can be determined that the electronic key is not moving. it can. Thereby, it can be specifically determined whether or not the electronic key is moving, that is, whether or not the electronic key is left in the building.

  The electronic key system for a building according to a sixth aspect of the present invention is the electronic key system according to any one of the first to fifth aspects, wherein the entrance door for opening and closing the entrance is provided with a handle on the indoor side, and a person tries to contact the handle. Contact movement detecting means for detecting whether or not the person has touched, and the outing determination means determines, based on a detection result of the contact movement detection means, that a person is going out of the building to the outdoors It is characterized by.

  When a person goes out of the building through the doorway, the door is opened. In this case, the door is usually opened with a handle provided on the indoor side of the door. Therefore, in the present invention, paying attention to this point, it is determined that a person is going out of the building through the doorway by detecting that the person is going to contact the handle or has detected contact. This is a practically preferable configuration when it is determined that a person is about to leave the building.

  A building electronic key system according to a seventh aspect of the present invention is the electronic key system for a building according to any one of the first to sixth aspects, further comprising person detecting means for detecting that a person is present in an indoor hall provided adjacent to the entrance. The outing determining means determines that a person is going out from the building based on the detection result of the person detecting means.

  When a person goes out of the building through the doorway, it may be possible to go outside through an indoor hall such as the entrance adjacent to the doorway. Therefore, in the present invention, paying attention to that point, it is determined that a person is going out of the building through the doorway by detecting that the person is present in the indoor hall by the person detecting means. . This is a practically preferable configuration when it is determined that a person is about to leave the building.

The top view which shows the entrance periphery. The front view which shows the state which looked at the entrance door from the indoor side. The side view which shows the structure of an indoor control apparatus periphery. The whole block diagram which shows an electronic key system. The flowchart which shows a locking / unlocking control process. The figure which shows another example of the installation structure of an indoor control apparatus.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 is a plan view showing the vicinity of the entrance, and FIG. 2 is a front view showing a state in which the entrance door is viewed from the indoor side.

  As shown in FIG. 1, the building 10 includes an entrance 11 as an indoor space, and a corridor 12 and a living room 13 provided adjacent to the entrance 11. A clog box 14 is installed at the entrance 11, and an accessory case 26 (corresponding to a key storage area) is provided on the top plate. The accessory case 26 can store a resident's keys and the like. In this embodiment, it is assumed that the resident's electronic key 18 is stored in the accessory case 26. . The building 10 is provided with an entrance 15 as an entrance that allows the entrance 11 to communicate with the outside. Access to the building 10 is possible through the entrance 15. The entrance door 15 is provided with an entrance door 16 as an entrance door. The entrance door 16 is, for example, a rotary door, and the entrance door 15 is opened and closed by turning the entrance door 16.

  As shown in FIG. 2, the front door 16 is provided with a locking / unlocking device 17 as locking / unlocking means. The locking / unlocking device 17 is a device that locks and unlocks (locks and unlocks) the front door 16 by electrically locking and unlocking the lock. The entrance door 16 is provided with a handle 19. The handle 19 is configured by, for example, a lever type. In the present embodiment, the handle 19 is tilted downward so that the latch 16a of the entrance door 16 is retracted and the entrance door 16 can be opened.

  The front door 16 is provided with an indoor control device 20 above the handle 19. The indoor control device 20 performs locking / unlocking management of the door 16. Hereinafter, the configuration of the indoor control device 20 will be described with reference to FIG. FIG. 3 is a side view showing a configuration around the indoor control device 20.

  As shown in FIG. 3, the indoor control device 20 includes a control unit 21 and a detection unit 22. The control unit 21 is fixed to the entrance door 16 by a leg portion 23, and a detection unit 22 is attached to the leg portion 23.

  The control unit 21 includes a controller 24 and a first communication unit 25. The controller 24 performs locking / unlocking control in this electronic key system. The controller 24 includes a known microcomputer having a CPU and the like.

  The first communication unit 25 performs wireless communication with the electronic key 18 carried by the resident. The communication area of the first communication unit 25 is set within a range of, for example, a radius of about 1 m with the communication unit 25 as the center, and communication with the electronic key 18 is possible in the area. The communication area of the first communication unit 25 extends across the interior and the exterior as indicated by the one-dot chain line in FIG. 1 (T1 in FIG. 1), and the clogs installed at the entrance 11 in the indoor area. A box 14 is included.

  The detection unit 22 includes an operation detection sensor 28 as a contact operation detection unit. The detection unit 22 has a thin casing with an opening on the lower side, and a through-hole (not shown) that penetrates the unit 22 in the thickness direction is provided at a substantially central portion of the detection unit 22. The detection unit 22 is provided between the control unit 21 and the entrance door 16 in a state of being inserted through the through hole.

  The motion detection sensor 28 is a sensor that detects the presence of a human hand above the handle 19 of the entrance door 16, and is composed of, for example, an infrared sensor. In this embodiment, since the entrance door 16 can be opened by tilting the handle 19 downward, when grasping the handle 19 to open the entrance door 16, the hand is moved from above the handle 19. It is conceivable to approach the handle 19. Therefore, in the present embodiment, the motion detection sensor 28 detects the presence of a human hand above the handle 19, thereby detecting the motion of the human touching the handle 19.

  The casing of the detection unit 22 that houses the motion detection sensor 28 is provided with an opening only on the lower side (bottom), so that the detection range of the sensor 28 is in an area below the sensor 28. That is, it is limited to the area above the handle 19. Therefore, it is possible to prevent erroneous detection such as detecting a person who only wanders around the entrance 11. Further, the detection unit 22 is rotatable along the surface of the door 16 with the leg portion 23 as the center, and therefore the opening direction of the opening of the housing can be changed by rotating the detection unit 22. . Therefore, the detection range of the motion detection sensor 28 can be changed by adjusting the opening direction.

  Moreover, although illustration is abbreviate | omitted, the indoor control apparatus 20 is provided with the operation part operated by the resident. The operation unit is provided with operation buttons and the like for performing various operations.

  Returning to the description of FIG. 1, the entrance 11 is provided with a speaker 32 as a notification means. The speaker 32 informs by voice that the electronic key 18 is left in the building 10, and is provided on the inner wall surface of the entrance 11, for example. In the present embodiment, the notification process is executed by the speaker 32 when the resident is going out of the entrance 11 even though the electronic key 18 is left in the building 10.

  The entrance 11 is provided with a second communication unit 33 that can communicate with the electronic key 18 carried by the resident. The 2nd communication part 33 is installed in the inner wall surface of the entrance 11, for example. The communication area of the second communication unit 33 is set to a range of, for example, a radius of about 50 cm with the communication unit 33 as the center, and communication with the electronic key 18 is possible in the area. In the present embodiment, the communication area of the second communication unit 33 is set so as to include the clog box 14 of the entrance 11 as shown by a two-dot chain line (T2 in FIG. 1) in FIG. Therefore, in this embodiment, the clog box 14 is installed in the overlapping area A where the communication areas of both the communication parts 25 and 33 overlap. The communication area of the second communication unit 33 is set so as not to expand as much as possible in the area other than the clog box 14 in the entrance 11. In other words, the communication area of the second communication unit 33 is set so as not to expand as much as possible in the area other than the clog box 14 in the entrance 11 through which the resident enters and exits the building 10. Therefore, even when a resident carrying the electronic key 18 passes through the entrance 11, the second communication unit 33 does not communicate with the electronic key 18.

  Next, the electrical configuration of the electronic key system will be described with reference to FIG. FIG. 4 is a diagram showing an electrical configuration of the electronic key system.

  As shown in FIG. 4, a first communication unit 25 is connected to the controller 24. The controller 24 can communicate with the electronic key 18 via the first communication unit 25, and transmits a request signal from the communication unit 25 to the communication area (see FIG. 1) described above at a predetermined cycle. Here, when the resident carrying the electronic key 18 enters the area and the request signal is received by the electronic key 18, the electronic key 18 transmits an ID code signal as a response to the request signal. When the ID code signal is received by the first communication unit 25, the ID code signal is input from the communication unit 25 to the controller 24.

  The controller 24 includes an ID code storage unit 24a. ID code information as identification information is stored in advance in the ID code storage unit 24a. The ID code information stored in the ID code storage unit 24 a corresponds to the ID code stored in the electronic key 18. When the ID code signal is input from the electronic key 18, the controller 24 authenticates the ID code. Specifically, the controller 24 determines whether or not the input ID code signal matches the ID code stored in the ID code storage unit 24a.

  The locking / unlocking device 17 is connected to the output side of the controller 24. The controller 24 outputs a locking signal or an unlocking signal to the locking / unlocking device 17 based on the result of the ID authentication, and performs the locking / unlocking control of the entrance door 16.

  An operation detection sensor 28 is connected to the input side of the controller 24. When a person is about to touch the handle 19 of the front door 16, a detection signal is input from the motion detection sensor 28 to the controller 24.

  A second communication unit 33 is connected to the controller 24. The controller 24 can communicate with the electronic key 18 via the second communication unit 33. When the controller 24 performs ID authentication based on the ID code signal from the electronic key 18 received by the first communication unit 25 (when authentication is OK), the controller 24 is based on the detection signal from the operation detection sensor 28. The second communication unit 33 transmits a request signal to the communication area (see FIG. 1) described above. When this request signal is received by the electronic key 18, the electronic key 18 transmits an ID code signal as a response to the request signal. When the ID code signal is received by the controller 24 via the second communication unit 33, the controller 24 authenticates the ID code.

  A speaker 32 is connected to the output side of the controller 24. The controller 24 outputs a notification signal to the speaker 32 based on the result of the ID authentication. Thereby, the notification process by the speaker 32 is executed.

  Next, the locking / unlocking control process executed by the controller 24 will be described based on the flowchart shown in FIG. This process is repeatedly executed at a predetermined cycle.

  First, in step S11, a request signal is transmitted from the first communication unit 25 to a predetermined communication area (see FIG. 1).

  In a succeeding step S12, it is determined whether or not the ID code signal transmitted from the electronic key 18 as a response to the request signal is received via the first communication unit 25. If the ID code signal has not been received, the process proceeds to step S20. If the ID code signal has been received, the process proceeds to step S13.

  In step S13, it is determined whether or not the ID code signal received from the electronic key 18 matches the ID code stored in the ID code storage unit 24a in advance. If the ID code signal from the electronic key 18 does not match the ID code stored in advance, the process proceeds to step S20, and if it matches, the process proceeds to step S14.

  In step 14, it is determined whether or not a person exists on the outdoor side of the front door 16. This determination is performed based on the detection result of the human detection sensor provided on the outdoor side of the entrance door 16, for example. When a person exists on the outdoor side of the front door 16, the process proceeds to step S <b> 21 and an unlock signal is output to the locking / unlocking device 17. Thereby, since the entrance door 16 is unlocked, a resident or the like who is outside can enter the building 10. Thereafter, this process is terminated. If no person is present on the outdoor side of the front door 16, the process proceeds to step S15. In this case, since the electronic key 18 can be considered to be present at the entrance 11, for example, a resident carrying the electronic key 18 is at the entrance 11, or the electronic key 18 is left on the shoebox 14 of the entrance 11. It is possible to do something.

  In step S15, based on the detection signal from the motion detection sensor 28, for example, when there is a person at the entrance 11, it is detected whether or not the person is touching the handle 19 of the entrance door 16. That is, here, it is detected whether a person at the entrance 11 is opening the entrance door 16 and going out of the building 10. If the person at the entrance 11 is not going to touch the handle 19 or if there is no person at the entrance 11, the process proceeds to step S20. If the person at the entrance 11 is about to touch the handle 19, the process proceeds to step S16.

  In step S16, a request signal is transmitted from the second communication unit 33 to a predetermined communication area (see FIG. 1).

  In a succeeding step S17, it is determined whether or not the ID code signal transmitted from the electronic key 18 as a response to the request signal is received via the second communication unit 33. When the ID code signal is received, the process proceeds to step S18, and it is determined whether or not the received ID code signal matches the ID code stored in the ID code storage unit 24a in advance. If the received ID code signal matches the stored ID code, the process proceeds to step S19. In this case, since the electronic key 18 transmits the ID code signal to both the first communication unit 25 and the second communication unit 33, the electronic key 18 is considered to be in the overlapping area A of both the communication units 25 and 33. be able to. That is, it can be considered that the electronic key 18 is left on the shoebox 14 of the entrance 11, for example, in the accessory case 26.

  In step S19, a notification process is executed. In the notification process, a notification signal is output to the speaker 32 to notify the speaker 32 that the electronic key 18 is left unattended. Specifically, announcements such as “the electronic key is left unattended” and “carry the electronic key” are made by the speaker 32. Thereby, it is possible to notify the resident who is going out from the building 10 that the electronic key 18 is not carried. The notification process is continued until a process stop operation is performed by a resident on the operation unit provided in the indoor control device 20.

  After the notification process, the process proceeds to step S20, and a locking signal is output to the locking / unlocking device 17. Thereby, since the entrance door 16 is locked, it can prevent going out of the building 10 without carrying the electronic key 18. FIG. Thereafter, this process is terminated.

  On the other hand, if a negative determination is made in any one of steps S17 and S18, the process proceeds to step S21. In this case, since the second communication unit 33 has not received the ID code signal from the electronic key 18, it can be considered that the electronic key 18 is not left on the shoebox 14. That is, it can be determined that the resident who is going to go outdoors carries the electronic key 18.

  In step S21, an unlocking signal is output to the locking / unlocking device 17. Thereby, since the entrance door 16 is unlocked, the resident can go out of the building 10 to the outdoors. Thereafter, this process is terminated.

  As mentioned above, according to the structure of this embodiment explained in full detail, the following outstanding effects are acquired.

  The motion detection sensor 28 detects that a person is about to touch the handle 19 of the front door 16, and the ID from the electronic key 18 is set by the second communication unit 33 in which the communication area is set so as to include the clog box 14. When a code signal is received, a notification process is performed by the speaker 32. That is, when the resident is going out of the building 10 through the entrance 15 and the electronic key 18 is left on the shoebox 14 of the entrance 11, the speaker is informed that the electronic key 18 is left. 32 decided to notify. In this case, since the resident who intends to go outside from the building 10 can know that the electronic key 18 is not carried before going outside, the electronic key 18 is not carried from the building 10 without carrying it. It is possible to avoid an inconvenient situation such as being locked out outdoors.

  When entering / exiting the building 10 through the entrance 15, the entrance / exit 11 passes through an area other than the clog box 14 in the entrance 11, but it is difficult to assume that the electronic key 18 is left in the area. Therefore, in the present embodiment, a second communication unit 33 capable of communicating with the electronic key 18 is provided with a predetermined area excluding such a region as a communication area, and the electronic key is based on the ID code signal received by the second communication unit 33. It was decided that 18 was left in the building 10. This is a practically preferable configuration when it is determined whether the electronic key 18 is left unattended.

  Specifically, the communication area of the second communication unit 33 is set to include the clog box 14 provided at the entrance 11. Thereby, it is possible to easily determine whether or not the electronic key 18 is left on the shoebox 14 that is a storage place of the electronic key 18.

  In the present embodiment, since the clog box 14 is installed in the communication area of the first communication unit 25, for example, when the electronic key 18 is left in the accessory case 26 on the clog box 14, It is assumed that the entrance door 16 is unlocked based on the ID code signal from the electronic key 18. In this case, since the entrance door 16 is unlocked even when the electronic key 18 is left on the clog box 14, the resident may leave the building 10 while leaving the electronic key 18 in the clog box 14. There is. In that respect, according to the above-described configuration in which the communication area of the second communication unit 33 is set to include the shoebox 14, when the electronic key 18 is left on the shoebox 14, a notification to that effect is given by the speaker 32. Therefore, even when the front door 16 is unlocked by the left electronic key 18, it is possible to prevent the electronic key 18 from leaving the building 10 without carrying it.

  An operation detection sensor 28 for detecting that a person is about to touch the handle 19 of the front door 16 is provided, and it is determined based on a detection result of the sensor 28 that a resident is about to leave the building 10. did. Thereby, when determining that a resident is going out of the building 10, it can be set as a practically preferable structure.

  A handle 19 and an indoor control device 20 are provided on the indoor side of the entrance door 16, and an operation detection sensor 28 is provided in the indoor control device 20. When the motion detection sensor 28 is provided on the handle 19 of the door 16, it is conceivable that the design of the door itself is forced to change or that the sensor installation location is restricted. In this respect, according to the present configuration, such inconvenience can be avoided, so that the operation detection sensor 28 can be easily installed. Further, when the operation detection sensor 28 is provided on the handle 19, it is difficult to change the detection range afterwards, but in the configuration of the present embodiment, the detection unit 22 can be rotated along the surface of the door 16. Therefore, there is an advantage that the detection range can be easily changed.

  When it is detected by the motion detection sensor 28 that a person is trying to touch the handle 19 of the front door 16 and the ID code signal from the electronic key 18 is received by the second communication unit 33, the locking and unlocking device 17 to perform the locking process. That is, when the resident is going out of the building 10 through the entrance 15 and the electronic key 18 is left on the shoebox 14 of the entrance 11, the entrance door 16 is locked. I did it. In this case, it is possible to prevent a resident from going out of the building 10 without carrying the electronic key 18, so that the electronic key 18 is not carried outside and is locked out outdoors. The situation can be avoided more reliably.

  The present invention is not limited to the above embodiment, and may be implemented as follows, for example.

  (1) In the above embodiment, the configuration is such that it is determined that a person is going out of the building 10 through the entrance 15 based on the detection result from the motion detection sensor 28. However, this is changed as follows. May be. For example, a contact detection sensor that detects that a person has touched the handle 19 may be provided, and it may be determined that the person is about to leave the building 10 based on the detection result of the sensor. Further, an opening operation detection sensor that detects that the entrance door 16 has been opened from the entrance 11 side may be provided, and it may be determined that a person is about to leave the building 10 based on the detection result of the sensor. . Also by these, it can be determined that the resident is going out of the building 10 through the entrance 15.

  In addition, a person detection sensor that detects the presence of a person at the entrance 11 is installed on the ceiling of the entrance 11, for example, and a person tries to get out of the building 10 based on the detection result from the person detection sensor. You may make it determine that it exists. Normally, when the resident exits the building 10 through the entrance 15, the occupant exits through the entrance 11, so that it is possible to determine that the resident is going out of the building 10 even with such a configuration.

  (2) In the above embodiment, based on the ID code signal from the electronic key 18 received by the second communication unit 33, it is determined whether or not the electronic key 18 is left on the shoebox 14 of the entrance 11. However, by changing this, a movement determining means for determining whether or not the electronic key 18 is moving is provided, and whether or not the electronic key 18 is left based on the determination result of the movement determining means. It is good also as a structure which determines. Normally, when the electronic key 18 is left in the building 10, the electronic key 18 does not move and remains stationary. Therefore, it is determined whether or not the electronic key 18 is left untouched even with such a configuration. Can do. Specifically, for example, an acceleration detection sensor that detects acceleration due to vibration of the electronic key 18 is provided in the electronic key 18, and it is determined whether or not the electronic key 18 is moving based on the detection result of the acceleration detection sensor. It is possible. Usually, when the electronic key 18 is moved due to movement of a resident carrying the electronic key 18, vibration based on the movement is transmitted to the electronic key 18. Therefore, according to this configuration, it is possible to specifically determine whether or not the electronic key 18 is moving, that is, whether or not the electronic key 18 is left in the building 10.

  (3) In the above embodiment, the communication area of the second communication unit 33 is set to include the clog box 14, but the communication area is an area excluding the clog box 14 at the entrance 11 (that is, a resident at the entrance 11. Any other area may be set as long as it is other than the above-mentioned area. For example, when the storage location of the electronic key 18 is not on the clog box 14 but other location such as a drawer provided in the living room 13, the communication area of the second communication unit 33 so as to include the storage location. Should be set.

  Moreover, in the said embodiment, although it was set as the structure which installs only the 2nd communication part 33 in the building 10, it is good also as a structure which installs the 2nd communication part 33 in multiple numbers. For example, when the storage locations of the electronic key 18 are provided at a plurality of locations in the building 10, the communication areas of the second communication units 33 may be set so as to include the storage locations. Further, in this case, since the communication area of the second communication unit 33 can be expanded by the number of installation, there is an advantage that it is possible to more accurately determine whether or not the electronic key 18 is left in the building 10. is there.

  (4) As the handle 19 provided in the entrance door 16, there are various types such as a knob type and a bar type extending up and down in addition to a lever type. Here, it is conceivable that the movement of the hand (mainly the movement direction) when a person grabs the handle differs depending on the mode of these handles 19. Therefore, the installation configuration of the indoor control device 20 may be changed according to the manner of these handles. A specific example will be described below with reference to FIG.

  For example, as shown in FIGS. 6A and 6B, when the handle 51 is of a bar type, when the handle 51 is to be gripped, the hand 51 is moved from the side of the handle 51. It is conceivable to approach. Therefore, in this case, it is preferable to install the indoor control device 20 on the side of the handle 51 and adjust the direction of the unit 22 so that the opening of the housing of the detection unit 22 faces the handle. Thereby, it is possible to detect the movement of the hand trying to grasp the handle 51.

  In addition, as shown in FIG. 6C, when the bar-type handle 52 is attached obliquely, when trying to grip the handle 52, the handle 52 is located above, laterally, or obliquely above. It is conceivable that the hand is moved closer to the handle 52. Therefore, in this case, the indoor control device 20 is preferably installed obliquely above the handle 52, for example, and the direction of the unit 22 is adjusted so that the opening of the housing of the detection unit 22 faces the handle. Thereby, it is possible to detect the movement of the hand trying to grasp the handle 52.

  (5) In the above embodiment, when the authentication process is performed based on the ID code signal received by the first communication unit 25 and the authentication is OK, the process after step S14 is performed. It is good also as a structure which performs the process after step S14, without performing. Then, since the communication area of the first communication unit 25 is set only on the outdoor side, even in a system in which the entrance door 16 cannot be unlocked based on authentication by the electronic key 18 when going out of the room to the outdoors. The process after S14 can be executed.

  DESCRIPTION OF SYMBOLS 10 ... Building, 11 ... Entrance as indoor hall, 14 ... Clog box, 15 ... Entrance door as entrance / exit, 16 ... Entrance door as entrance / exit door, 17 ... Locking / unlocking device as locking / unlocking means, 18 ... Electronic key, DESCRIPTION OF SYMBOLS 19 ... Handle, 20 ... Indoor control apparatus, 24 ... Controller as notification control means and going-out determination means, 25 ... 1st communication part, 26 ... Small container as a key storage place, 28 ... Motion detection sensor as contact motion detection means 32 ... Speaker as notification means, 33 ... Second communication unit.

Claims (7)

An electronic key that transmits unique identification information;
A first communication unit capable of communicating with the electronic key with a predetermined range near the entrance of the building as a communicable range;
Based on the identification information from the electronic key received by the first communication unit, locking / unlocking means for locking / unlocking the door, which opens and closes the door;
In an electronic key system of a building comprising
Outing determination means for determining that a person is going out of the building through the doorway,
Neglect determination means for determining whether or not the electronic key is neglected in a building;
If it is determined that the person is going out of the building by the outing determination means, and the electronic key is determined to be left in the building by the leaving determination means, the leaving Notification control means for informing the notification means that it has been,
An electronic key system for a building characterized by comprising: A second communication unit capable of communicating with the electronic key as a communicable range within a building excluding an entrance passage area provided around the entrance;
The said leaving determination means determines that the said electronic key is left in the building based on the identification information from the said electronic key received by the said 2nd communication part. Building electronic key system. The indoor hall provided adjacent to the entrance is provided with a key storage area for storing the electronic key,
The building electronic key system according to claim 2, wherein a communication area of the second communication unit is set to include at least the key storage area. Movement determining means for determining whether or not the electronic key is moving;
The building electronic device according to claim 1, wherein the leaving determination unit determines whether or not the electronic key is left in the building based on a determination result of the movement determination unit. Key system. Comprising vibration detecting means for detecting vibration of the electronic key;
5. The building electronic key system according to claim 4, wherein the movement determination unit determines whether or not the electronic key is moving based on a detection result of the vibration detection unit. The entrance door that opens and closes the entrance is provided with a handle on the indoor side,
Contact operation detecting means for detecting that a person is trying to contact or has contacted the handle;
The said going-out determination means determines that a person is going out to the outdoors from the inside of a building based on the detection result of the said contact movement detection means. Building electronic key system. Comprising human detection means for detecting the presence of a person in an indoor hall provided adjacent to the doorway;
The said going-out determination means determines that the person is going out to the outdoors from the inside of a building based on the detection result of the said person detection means. Building electronic key system.

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