Classifications

• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
  • G07C9/00—Individual registration on entry or exit
  • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
  • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
  • B60R25/20—Means to switch the anti-theft system on or off
  • B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
  • B60R25/245—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user where the antenna reception area plays a role
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
  • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
  • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
  • G01S5/0205—Details
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04B—TRANSMISSION
  • H04B17/00—Monitoring; Testing
  • H04B17/30—Monitoring; Testing of propagation channels
  • H04B17/309—Measuring or estimating channel quality parameters
  • H04B17/318—Received signal strength
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
  • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
  • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
  • G01S5/0284—Relative positioning
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
  • G07C9/00—Individual registration on entry or exit
  • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
  • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
  • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
  • G07C2009/00793—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by Hertzian waves
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
  • G07C2209/00—Indexing scheme relating to groups G07C9/00 - G07C9/38
  • G07C2209/60—Indexing scheme relating to groups G07C9/00174 - G07C9/00944
  • G07C2209/63—Comprising locating means for detecting the position of the data carrier, i.e. within the vehicle or within a certain distance from the vehicle
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04W—WIRELESS COMMUNICATION NETWORKS
  • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
  • H04W4/02—Services making use of location information
  • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04W—WIRELESS COMMUNICATION NETWORKS
  • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
  • H04W4/30—Services specially adapted for particular environments, situations or purposes
  • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04W—WIRELESS COMMUNICATION NETWORKS
  • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
  • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

Definitions

• the present invention relates to an unlocking system for unlocking and a control method for the unlocking system, a control device for controlling unlocking and a control method for the control device, and a determination device for determining a shielded state of a wireless terminal. And the determination method for determining the obstruction state of the wireless terminal.
• a wireless signal is transmitted by radio waves between a portable device carried by a user and an in-vehicle device installed in a vehicle.
• a device that determines the positional relationship between the portable device and the vehicle based on the strength of the radio wave of the wireless signal transmitted and received by the in-vehicle device, and unlocks the door of the vehicle based on the positional relationship (.
• Patent Document 1 discloses a device that determines the positional relationship between the portable device and the vehicle based on the strength of the radio wave of the wireless signal transmitted and received by the in-vehicle device, and unlocks the door of the vehicle based on the positional relationship.
• Patent Document 1 Japanese Unexamined Patent Publication No. 2 0 2 0 — 0 5 1 9 70
• the unlocking system (1 ⁇ ⁇ ) receives a radio signal transmitted by radio waves from a radio terminal (1 0) at an antenna (20 a to 20 e) and uses the radio signal as the radio signal. It is an unlocking system (1 0 0) that controls the unlocking of the lock (2 1) based on the radio wave of the previous word self-radio wave received by the previous word self antenna (2 ⁇ a to 2 ⁇ e).
• the acquisition unit (30 a) that acquires the strength information (RI) related to the strength of the lock (2 1), and the execution unit (30 b, 40 b) that executes the unlocking process that controls the unlocking of the lock (2 1).
• the execution unit (30 b, 40 b) has the shielding information (s I) regarding the shielding state of the radio terminal (10) based on the strength information (RI). Is acquired, and the control for releasing the lock (2 1) is executed based on the strength information corrected by using the shielding information (s I).
• the execution unit executes the control of unlocking based on the strength information corrected by using the shielding information, thereby shielding the wireless terminal.
• the accuracy of unlocking can be improved according to the state, and the convenience of the user can be improved.
• the control method of the unlocking system (100) is to receive a radio signal transmitted by radio waves from a wireless terminal (1 0) with an antenna (20 a to 20 e). It is a control method of the unlocking system (1 0 0) that controls the unlocking of the lock (2 1) based on the radio signal, and is the radio signal received by the antenna (2 0 a to 20 e).
• the step of acquiring the strength information (RI) related to the radio field strength of the antenna (RI) by the acquisition unit (30 a) and the unlocking process that controls the unlocking of the lock (2 1) are performed by the execution unit (30 b, 40 b).
• the executing unit (30 b, 40 b) shields the wireless terminal (1 ⁇ ) based on the strength information (RI).
• Information (SI) is acquired and the shielding information (SI) is acquired.
• SI shielding information
• Is corrected based on the strength information (RI c) is executed.
• the execution unit executes the control of unlocking based on the strength information corrected by using the shielding information, so that the wireless terminal is used.
• the precision of unlocking can be increased according to the shielded state of the device, and the convenience of the user can be improved.
• the control device (20) is based on a radio signal transmitted from a radio terminal (10), carried by radio waves, and received by an antenna (20 a to 20 e). It is a control device (3 ⁇ ) that controls the release of the lock (2 1), and acquires the strength information (RI) regarding the radio field strength of the radio signal received by the antenna (20 a to 20 e). It includes an acquisition unit (30 a) and an execution unit (30 b) that executes an unlocking process that controls unlocking of the lock (2 1). In the unlock process, the execution unit (30 b) is provided.
• the execution unit executes the control to release the lock based on the strength information corrected by using the shielding information, so that the wireless terminal is in the shielding state.
• the accuracy of unlocking can be improved accordingly, and the convenience of the user can be improved.
• the control method of the control device (2 1) according to the present invention is transmitted from a wireless terminal (1 ⁇ ), carried by radio waves, and received by an antenna (20 a to 20 e). It is a control method of the control device (20) that controls the unlocking of the lock (2 1) based on the radio signal, and is related to the radio field strength of the radio signal received by the antenna (20 a to 20 e). It includes a step to acquire strength information (RI) by the acquisition unit (30 a) and a step to execute the unlocking process to control the release of the lock (2 1) by the execution unit (30 b).
• RI strength information
• the execution unit (30 b) acquires the occlusion information (s I) regarding the occlusion state of the radio terminal (1 0) based on the intensity information (RI), and the occlusion information (s I). Based on the strength information (RI c) corrected using the above, the control to output the information related to the control of the release of the lock (2 1) is executed.
• the wireless terminal is controlled by the execution unit to release the lock based on the strength information corrected by using the shielding information.
• the accuracy of unlocking can be improved according to the shielded state of the device, and the convenience of the user can be improved.
• the determination device (20) receives the radio signal carried by the radio wave from the radio terminal (20) at the antenna (20 a to 20 e), and receives the radio signal of the radio signal. It is a determination device (30) that determines the shielding state of the radio terminal (1 0) based on the radio wave intensity of the antenna (20 a to 20 e), and is the antenna (20 a to 20 e). An acquisition unit (30 a) that acquires strength information (RI) related to the radio field strength of the radio signal received in e), and an execution unit that executes a determination process to determine the shielding state of the radio terminal (1 0).
• RI strength information
• the execution unit (30 b) analyzes the appearance frequency distribution of the radio wave intensity based on the intensity information (RI) and at least the appearance frequency distribution.
• the shape is a reference shape
• the radio wave terminal (10) When it is specified that the radio wave terminal (10) is shielded by a shield, it is determined that the radio terminal (10) is in a shielded state, and the frequency distribution of radio wave strength is based on the strength information (RI). If the shape of the appearance frequency distribution is not the reference shape, and if it is not specified that the radio wave intensity at the antenna drops beyond the first reference amount based on the intensity information (RI), , The configuration is such that it is determined that the radio terminal (io) is not in a shielded state that is shielded by a shield.
• the determination device can determine the shielding state in which the wireless terminal is shielded by the shielding body, and can improve the convenience of the user.
• the determination method according to the present invention uses an antenna (a radio signal) carried by a radio wave from a radio terminal (10).
• the execution unit (30 b) analyzes the appearance frequency distribution of the radio field intensity based on the intensity information (RI) and at least the above.
• the shape of the appearance frequency distribution is the reference shape, it is determined that the radio terminal (io) is in the shielded state shielded by the shield, and the appearance frequency of the radio wave intensity is determined based on the intensity information (RI).
• the radio field intensity at the antenna (20 a to 20 e) is the first reference amount (20 a to 20 e) based on the intensity information (RI).
• the radio terminal (10) When it is specified that the decrease exceeds al), it is determined that the radio terminal (10) is in a shielded state shielded by a shield, and the radio field strength is determined based on the strength information (RI).
• the shape of the appearance frequency distribution is not the reference shape by analyzing the appearance frequency distribution of, and it is specified that the radio wave intensity at the antenna decreases beyond the first reference amount based on the intensity information (RI). If this is not the case, it is determined that the radio terminal (io) is not in a shielded state that is shielded by a shield.
• the present invention may have only the invention-specific matters described in the claims of the present invention, and the invention-specific matters together with the invention-specific matters described in the claims of the present invention. Even if it has a configuration other than Good ,.
• FIG. 1 is a diagram for explaining a configuration of a lock system according to an embodiment.
• FIG. 2 is a diagram for explaining a configuration of a wireless terminal.
• FIG. 3 is a diagram for explaining a configuration of an in-vehicle ECU.
• Fig. 4 is a diagram for explaining the flow of the shielding state determination process executed by DKECU.
• FIG. 5 is a diagram for explaining an example of an appearance frequency distribution of radio wave intensity.
• FIG. 6 is a diagram for explaining an example 1 of a time change of radio wave intensity.
• Fig. 7 is a diagram for explaining an example 2 of a time change of radio wave intensity.
• FIG. 8 is a diagram for explaining a flow of area determination processing executed by DKECU.
• FIG. 9 is a diagram for explaining a flow of unlocking control processing executed by the lock control device.
• the unlocking system and the control method of the unlocking system according to the present embodiment will be described by taking as an example an unlocking system provided in an automobile, and the present invention particularly relates to this. It is not limited to this, and can be applied to unlocking systems installed in offices, residences, furniture, furniture, etc. other than automobiles, for example, motorcycles and bicycles. [. 0 2 2]
• the unlocking system 100 is a system that locks the door lock 2 1 of the automobile 1 based on the radio signal transmitted by the radio wave from the wireless terminal 10.
• the unlocking system 1 ⁇ is provided on the wireless terminal 1 ⁇ owned by the user U, the in-vehicle ECU 2 ⁇ mounted on the automobile 1, and the door of the automobile 1. Includes a lock device 40, which controls the locked lock 2 1.
• the wireless terminal 10 is a small portable electronic device that can be carried by user U (for example, a user of automobile 1), and is a radio signal by radio wave based on the operation by the user U. Is a device that transmits to the in-vehicle ECU 20.
• the user U can carry the wireless terminal 10 in the hand U a of the user U, or can carry the wireless terminal 10 in the pocket U b on the rear side of the pants of the user U.
• the wireless terminal 10 may be any as long as it has a function of transmitting a wireless signal to the in-vehicle ECU 20 by radio waves, and is, for example, a general-purpose device such as a mobile phone, a smartphone, or a tablet P c. It may be configured by a type information processing device, or may be configured by a dedicated device such as a remote control key.
• the wireless terminal 10 is for the terminal receiving unit 10 a that receives the radio signal transmitted by the radio wave from the in-vehicle ECU 20 and the in-vehicle ECU 20. It is equipped with a terminal transmission unit 1 ⁇ b that transmits wireless signals by radio waves, a terminal operation unit 10 c that accepts operations by user U, and a terminal control unit 1 ⁇ d that controls wireless terminals 10 ⁇ .
• the terminal receiver 1 ⁇ a carries a radio signal by radio waves that conforms to the communication standard of short-range wireless communication technology.
• the terminal transmitter 1 ⁇ b Upon receiving from ECU 2 ⁇ , the terminal transmitter 1 ⁇ b transmits a radio signal by radio waves compliant with the communication standard to the on-board ECU 2 ⁇ , so that the wireless terminal 10 ⁇ conforms to the communication standard. Then, wireless communication by radio waves can be performed with the in-vehicle ECU 20.
• the communication module of the wireless terminal 10 may be configured to comply with a wireless communication standard other than BLE as a communication standard for short-range wireless communication technology.
• a wireless communication standard other than BLE for short-range wireless communication technology.
• UWB U ltra — Wideband
• S NFC N ear F
• the communication module of wireless communication terminal 10 may be one that communicates using a technology that communicates by radio waves other than the short-range wireless communication technology.
• the terminal operation unit 1 ⁇ c has a function of accepting an operation by a user U or the like, for example, a lock button and a lock 2 1 for receiving an operation for locking the lock 2 1 provided on the door of the automobile 1. It is equipped with functions such as an unlock button that receives operations for unlocking the door. Then, when an operation by the user u or the like is accepted, the information related to the operation is output to the terminal control unit 10 d.
• the terminal operation unit 10 c may be configured to accept operations by, for example, a button switch or a touch display, or may be configured to receive operations by using technology such as voice recognition.
• the terminal control unit 10 d is composed of electronic circuits equipped with a CPU (Central Processing Unit), ROM (R ead Online Emory) S R AM (R andom Access Emory), etc. To. By executing various programs stored in a storage device such as ROM by the CPU, the function to execute various processes described later is realized, and the wireless terminal 1 ⁇ is controlled. For example, the terminal control unit 10 d executes a control for transmitting a radio signal including predetermined information from the terminal transmission unit 10 b, a control for receiving the radio signal by the terminal reception unit 10 a, and the like.
• the terminal control unit 10 d may be composed of dedicated hardware resources and dedicated software resources.
• the terminal control unit 10 d may be composed of common hardware included in a device that executes other control in the wireless terminal 10 and the like. It may be composed of resources and common software resources.
• the terminal control unit 1 ⁇ d operates by receiving power supply from a battery (not shown) provided in the wireless terminal 10 ⁇ .
• the terminal control unit 10 d is a terminal that acquires information related to the radio signal received by the terminal receiving unit 10 a and information related to the operation received by the terminal operation unit 10 c. It includes an acquisition unit 10 e and a terminal execution unit 10 f that executes predetermined processing and the like based on various information acquired by the terminal acquisition unit 10 e.
• a lock signal transmission process for transmitting a wireless signal instructing the lock of the lock 2 1 or unlocking of the lock 2 1 is performed. It includes unlocking signal transmission processing, etc., which transmits the wireless signal to be instructed.
• the lock signal transmission process is a process executed when the operation for locking the lock 2 1 is received, and in this process, the terminal execution unit 1 ⁇ f gives an instruction to instruct the lock 2 1 to be locked. Control is performed to transmit a wireless signal including information IIa from the terminal transmitter 1 ⁇ b in accordance with the communication standard of the short-range wireless communication technology described above.
• the unlocking signal transmission process is a process executed when an operation for unlocking the lock 2 1 is received, and in this process, the terminal execution unit 10 f instructs the unlock of the lock 2 1.
• Instruction information to be issued II The control to transmit the radio signal including b from the terminal transmitter 10 b in conformity with the communication standard of the short-range wireless communication technology described above is executed.
• the terminal execution unit 1 ⁇ f assigns a unique identification information ID for identifying the radio terminal 1 ⁇ that is the source of the radio signal to each radio. Control to include in the signal. As a result, the radio signal is transmitted on the vehicle-mounted ECU 20 side that has received the wireless signal transmitted by the wireless terminal 10. It is possible to determine the origin of the word.
• the in-vehicle ECU 20 has a receiving antenna 2 0 a to 20 e that receives a radio signal transmitted by radio waves from the wireless terminal 10 and a wireless terminal 1 ⁇ .
• a control device that performs related processing 3 ⁇ hereinafter, may be referred to as a Wireless Wireless Antenna (DKECU)
• DKECU Wireless Wireless Antenna
• lock device 4 0 that controls the locking and unlocking of the lock 2 1. Be prepared.
• the receiving antennas 20 a to 20 e, the transmitting antenna 20 f, and the locking device 40 are connected to the D K E C U 30 in a controllable manner from the D K E C U 30.
• the receiving antennas 20 a to 20 e are respectively arranged at predetermined positions of the automobile 1, and receive radio waves of each receiving antenna (for example, the receiving antenna 2 ⁇ a and the receiving antenna 2 0 b to 20 e).
• the environments are different from each other.
• the receiving antenna 2 ⁇ a is located on the left side garnish of vehicle 1
• the receiving antenna 2 0 b is located on the center console of vehicle 1
• the receiving antenna 2 ⁇ c is located on the right side of vehicle 1.
• the receiving antenna 2 ⁇ d is located in the rear garnish of vehicle 1
• the receiving antenna 2 ⁇ e is located in the bumper behind vehicle 1 (see Figure 1).
• the receiving antennas 20 a to 20 e are arranged in the side garnish, the rear garnish, and the center console of the automobile 1, but the receiving antennas 20 a to 20 e are radio waves.
• the reception environment may be arranged in a different positional relationship, and may be arranged in a position other than the side garnish, the rear garnish, and the center console, for example, the ceiling, floor, cabin, or the like of the automobile 1.
• the in-vehicle ECU 20 is provided with a plurality of antennas that receive and receive radio signals from the radio terminal 10, and the plurality of antennas are radio signals that are received and received by one of the plurality of antennas. It is preferable that the radio wave strength of the radio signal received by the other antenna is higher than the predetermined standard amount as compared with the radio wave strength of the antenna.
• the DKECU 30 (control device 30) received nothing via the above-mentioned receiving antennas 20 a to 20 e. It is a control device that controls the unlocking of the lock 2 1 based on the line signal. It consists of an electronic circuit equipped with Memory), etc., and various programs stored in a storage device such as R ⁇ M are executed by the cpu to realize the predetermined processing described later and unlock the lock 2 1. Etc. are to be executed.
• the DKECU 30 may be composed of dedicated hardware resources and dedicated software resources, for example, a control device mounted on the automobile 1 to execute other controls (for example, a lock device 40, etc.). ) May be composed of common hardware resources and common software resources. Further, the hardware resources constituting DKECU 30 may be composed of one hardware resource or may be composed of two or more hardware resources. Further, the software resources constituting DKECU 30 may be composed of one software resource or two or more software resources.
• the DKECU 30 receives radio signals by radio waves compliant with the above-mentioned short-range wireless communication technology communication standards with the receiving antennas 20 a to 20 e, while the transmitting antenna 20 f makes the communication standard.
• the transmitting antenna 20 f makes the communication standard.
• the DKECU 30 is acquired by the DK acquisition unit 3 ⁇ a and the DK acquisition unit 3 ⁇ a that acquire the radio signal via the receiving antennas 20 a to 20 e. It is equipped with a DK execution unit 30 b, which executes a predetermined process based on a radio signal.
• the DK acquisition unit 3 ⁇ a acquires a radio signal via the receiving antennas 20 a to 20 e, and acquires the above-mentioned instruction information II a, II b, etc. included in the radio signal.
• the strength information regarding the strength of the radio wave of the radio signal received at each receiving antenna 20 a to 20 e R! Is acquired every 20 a to 20 e of the receiving antenna.
• DK Execution unit 3 ⁇ b executes predetermined processing, etc.
• predetermined processing for example, as will be described later, a shielding state determination process for determining the shielding state of the wireless terminal 10 based on the radio signal received by each of the receiving antennas 20 a to 20 e, and wireless Area information related to the area where the wireless terminal 10 is located based on the signal ZI is acquired and output as information related to the control of unlocking the lock 2 1 including area information processing.
• the lock device 40 is a control device that controls the operation of the lock 2 1 based on the information output by the DKECU 30 (including, for example, instruction information II a, II b, area information ZI, etc.). It is composed of electronic circuits equipped with CPU (C entra IP rocessing Unit) S R OM (R ead O nly M emory) s R AM (R andom A ccess M emory), etc., and is stored in a storage device such as R ⁇ M. By executing the various programs executed by the CPU, etc., the predetermined processing is realized, and the control to operate the lock 2 1 to unlock is executed.
• the locking device 40 may be configured by a dedicated hardware resource and a dedicated software resource, or may be configured by a common hardware resource and a common software resource included in other control devices and the like. Further, the hardware resources constituting the lock device 40 may be composed of one hardware resource or may be composed of two or more hardware resources. Further, the software resources constituting the lock device 40 may be composed of one software resource or may be composed of two or more software resources.
• the lock device 40 has an information acquisition unit 4 0 a for acquiring instruction information II b and area information ZI output from the above-mentioned DKECU 30, and as will be described later.
• An unlocking execution unit 40 b that executes an unlocking control process for controlling the operation of the lock 2 1 for unlocking based on the instruction information II b and the area information ZI.
• the lock 2 1 provided on the door of the automobile 1 is connected to the lock device 40 in a controllable manner. Further, the lock device 40 is mounted on the automobile 1 and operates by receiving electric power from the battery of the automobile 1.
• the unlocking system 100 of the present embodiment has a configuration including a wireless terminal 10, an in-vehicle ECU 200, a lock device 40, and a lock 2 1.
• the wireless terminal 1 ⁇ is a wire containing instruction information II b instructing the unlocking of the lock 2 1 when the operation for unlocking the lock 2 1 by the user U is accepted by the terminal operation unit 1 ⁇ c.
• the signal is transmitted to the in-vehicle ECU 20.
• the DKECU 30 of the in-vehicle ECU 20 acquires the instruction information II b and the area information ZI based on the radio signal received from the wireless terminal 10 and outputs them to the lock device 40.
• the lock device 40 controls the operation of the lock 2 1 for unlocking based on the instruction information II b and the area information ZI.
• the lock 2 1 whose operation for unlocking is controlled by the DKECU 30 and the lock device 40 is configured to be provided on the door of the automobile 1, but the lock 2 1 is
• the configuration may be provided in the door of the automobile 1, for example, the configuration provided in the trunk room of the automobile 1, the configuration provided in the fuel filler port of the automobile 1, or a combination of these configurations.
• the in-vehicle ECU 20 includes a DKECU 30 and a lock device 40, and the lock device 40 uses the instruction information II b and the area information ZI acquired by the DKECU 30.
• the configuration is such that the lock device 40 acquires the instruction information II b from the radio signal received by the receiving antennas 20 a to 20 e without going through the DKECU 30. But it's okay.
• the in-vehicle ECU 20 is provided with the DKECU 30 and the lock device 40, and the lock device 40 is used for the instruction information II b and the area information ZI acquired by the DKECU 30.
• the operation of the lock 2 1 for unlocking is controlled.
• the lock 2 1 is connected to the DKECU 30 in a controllable manner, and the DKECU 30 is unlocked without going through the lock device 40. It may be configured to control the operation of the lock 2 1 for locking.
• the shielding state determination process S a and the area determination process S b executed by DKECU 30 and the unlock control executed by the lock device 40 The processing S c will be explained based on FIGS. 4 to 6.
• the release process of the present invention corresponds to the shield state determination process S a, the area determination process S b, and the unlock control process S c.
• D K E C U 3 0 is the strength information regarding the strength of the radio wave of the radio signal at each receiving antenna 2 ⁇ a to 20 e R!
• the DK acquisition unit 30a determines the strength of the radio signal received by each receiving antenna 20a to 20e over a predetermined period (for example, 2 seconds).
• the control to acquire and sequentially store the strength information RI in the predetermined area of the storage unit (not shown) of DKECU 30 is repeated at predetermined time intervals (for example, every 1 second, etc.).
• the transition of the intensity information R I for each of the receiving antennas 200 a to 20 e is acquired in the storage unit of D K E C U 30.
• DKECU 30 executes analysis process 1 to analyze the intensity information RI acquired in the information acquisition process (S a 0 2). ..
• the DK execution unit 3 ⁇ b is the distribution of the appearance frequency of the intensity information RI in the corresponding receiving antennas 20 a to 20 e, and the corresponding two receiving antennas 20 a to 20 e.
• Intensity information of R! Is analyzed for the difference amount, and the shielding state of the wireless terminal 10 is determined based on the analysis result.
• the DK execution unit 30 b first receives intensity information R for each of the receiving antennas 2 0 a to 20 e stored in the storage unit of the DKECU 30 0! With reference to the transition of, the receiving antenna having the highest average value of the intensity information RI in a predetermined period (for example, 2 seconds) is specified as the first specific antenna. And the strength information R! Generates information about the distribution of frequency R 0. Then, the distribution of the frequency of appearance is analyzed to determine whether or not the shape of the distribution is the reference shape, and the result of the determination is stored in a predetermined area of the storage unit of DKECU 30.
• the wireless terminal 1 ⁇ is located outside the vehicle on the left side of the vehicle 1,
• the receiving antenna 2 ⁇ a located on the left side garnish of the automobile 1 is specified as the first specific antenna, and the strength information R! It is determined whether the shape of the distribution of the frequency of appearance is the reference shape.
• the radio wave strength is taken as the horizontal axis.
• the shape of the appearance frequency distribution shown by the graph drawn with the appearance frequency R 0 as the vertical axis has a predetermined antenna depending on the radio wave shielding state of the wireless terminal 10.
• the wireless terminal 1 ⁇ is located outside the vehicle on the left side of the car 1, and the wireless terminal 1 ⁇ is held in the user U's hand U h (see Fig. 1). That is, the wireless terminal 10 is located between the body of the user U and the receiving antennas 20 a to 20 e, and the radio wave is shielded between the wireless terminal 10 and the receiving antennas 20 a to 20 e.
• Strength information on the receiving antenna 2 ⁇ a in a state where there is no shield (for example, the body of user U who is the owner of the wireless terminal 10) (hereinafter, may be referred to as the first shield state).
• R! An example of the shape of the appearance frequency distribution of RO a is shown. Also, in Fig.
• the wireless terminal 10 is located outside the vehicle on the right side of the car 1, and the wireless terminal 10 is carried in the rear pocket of the user u's pants (see Fig. 1). ) That is, the body of the user U is located between the wireless terminal 1 ⁇ and the receiving antenna 2 0 a to 20 e, and the wireless terminal 1 ⁇ and the receiving antenna 2 0 a to 20 e.
• Receiving antenna 2 ⁇ a in a state where there is a shield that shields radio waves between them (for example, the body of user U who is the owner of the wireless terminal 10) (hereinafter, may be referred to as the second shield state).
• Strength information at R! An example of the shape R ⁇ b of the appearance frequency distribution of is shown.
• the radio wave of the radio signal emitted from the wireless terminal 10 is received from the wireless terminal 10 0 a to 20 e.
• Intensity information R The shape of the frequency distribution of R 0 a is a shape that has approximately one peak (for example, when the intensity information RI is extracted into the frequently occurring Dvesha). , The difference in strength between the highest intensity information RI and the second highest intensity information RI is less than a predetermined amount, etc.).
• the radio wave of the radio signal emitted from the radio terminal 10 has a plurality of routes such as a route that bypasses the shield and a route that penetrates the shield due to the diffraction phenomenon and the transmission phenomenon of the radio wave.
• the shape of the appearance frequency distribution of R ⁇ b is the shape having multiple peaks (for example, two, etc.) (for example, when the intensity information RI is extracted in descending order of appearance frequency, the highest intensity information RI and 2 Second highest strength information There is a tendency for the shape to have a strength difference from the RI that is greater than or equal to a predetermined amount).
• the shape of the appearance frequency distribution of the intensity information RI for the receiving antennas 20 b to 20 e other than the receiving antenna 20 a also depends on the radio wave shielding state of the wireless terminal 10. Then, the strength information R at the above-mentioned receiving antenna 2 ⁇ a! Has a tendency similar to the shape of the appearance frequency distribution of.
• the storage unit of DKECU 30 is set based on the shape of the appearance frequency distribution at each receiving antenna 20 a to 20 e measured and acquired in the second shielded state in an experiment conducted in advance.
• Information on the reference shape (for example, a shape with two peaks) is registered in advance.
• the DK execution unit 3 ⁇ b is the intensity information R! About the first specific antenna obtained by the analysis.
• the shape of the appearance frequency distribution is compared with the standard shape, and when the degree of agreement between the shape of the appearance frequency distribution and the reference shape is equal to or more than a predetermined reference amount, the shape of the appearance frequency distribution is the reference shape. On the other hand, when the degree of coincidence is less than the reference amount, it is determined that the shape of the appearance frequency distribution is not the reference shape.
• the DK execution unit 3 0 b is the intensity information R! Intensity information for a given period (eg, 2 seconds, etc.) with reference to the transition of R!
• the receiving antenna with the next highest average value of the above-mentioned first specific antenna is specified as the second specific antenna. Then, from the transition of the intensity information R I at the second specific antenna, the intensity information R at the first specific antenna
• the wireless terminal 1 ⁇ is located outside the vehicle on the left side of the car 1, the receiving antenna 2 ⁇ a located on the side garnish on the left side of the automatic car 1 is specified as the first specific antenna, and the car 1 The receiving antenna 2 ⁇ e located on the rear bumper is specified as the second specific antenna, and the difference between the intensity information RI at the first specific antenna and the intensity information RI at the second specific antenna is the second. It is determined whether or not the standard amount a 2 is exceeded.
• the difference between the intensity information RI at each receiving antenna 20 a to 20 e and the intensity information RI at the first specific antenna is, as will be described later, the amount of the radio wave in the wireless terminal 10 It has a predetermined tendency depending on the shielding state.
• the wireless terminal 1 ⁇ shows the difference information generated by using the receiving antenna 20 a as the first half-temple antenna and the receiving antenna 20 e as the second half-temple antenna.
• the difference information RI a (20 e) in the first shielded state Is an example of the above-mentioned difference information RI a (20 e) in the first shielded state and an example of the above-mentioned difference information RI b (20 e) in the second shielded state.
• the shield (for example, the body of user U) is the first between the wireless terminal 10 and the receiving antennas 20 a to 20 e.
• the difference information RI b (20 e) in the second shielded state becomes smaller than the difference information RI a (20 e) in the first shielded state.
• the difference information in the receiving antennas 20 b to 20 d other than the receiving antenna 2 ⁇ e also tends to be smaller in the second shielded state than in the first shielded state. There is.
• the storage unit of DKECU 30 contains the difference information RI a for each receiving antenna in the first shielded state and the difference information RI b for each receiving antenna in the second shielded state, which were measured in advance in experiments and the like.
• Information about the second reference amount a 2 set based on is registered in advance.
• the second reference amount a 2 is a value smaller than the difference information RI a for each receiving antenna measured in the first shielded state, and the difference information RI for each receiving antenna measured in the second shielded state. It is a value larger than b, and is set to an intermediate value between the difference information RI a and the difference information RI b, for example. [.
• the DK execution unit 3 ⁇ b determines that the shielded state of the wireless terminal 10 is the first shielded state. ..
• the wireless terminal 10 is shielded. Judge that the state is the first shielded state.
• the radio is used. It is determined that the shielded state of terminal 10 is the second shielded state.
• the DKECU 30 determines the current wireless terminal 1 based on each determination result in the analysis process 1.
• Shielding information indicating the shielding status s Execute the status setting process to set I (S a 03).
• the DK execution unit 30 b determines that the wireless terminal 1 ⁇ is in the first shielded state in the analysis process 1, and the current shielded state of the wireless terminal 10 is changed.
• the current wireless terminal when it is determined that the wireless terminal 10 is in the second shielded state while the shielding information SI indicating that it is in the first shielded state is set in the predetermined area of the storage unit of the DKECU 30
• Set the shielding information SI indicating that the shielding state of 10 is the second shielding state in the predetermined area of the storage unit of DKECU 30.
• the shielding information s I set in the predetermined area of the storage unit can be referred to in the area determination process s b.
• the DKECU 3 ⁇ obtains the intensity information RI for each receiving antenna 20 a to 20 e by the DK acquisition unit 3 ⁇ a.
• Strength to be acquired Execute the information acquisition process (S a 04).
• DK ECU 30 After the strength information acquisition process is executed and the strength information RI is acquired in step S a 4, DK ECU 30 performs analysis process 2 to analyze the intensity information RI (S a 05). In the analysis process 2, the difference amount of the intensity information RI at the corresponding receiving antenna and the time change amount of the intensity information RI at the corresponding receiving antenna are analyzed, and based on the analysis result, the wireless terminal 10 The shielded state is judged ⁇
• the DK execution unit 3 ⁇ b first receives every antenna 2 0 a to 20 e stored in the storage unit of the DKECU 3 ⁇ , as in the analysis process 1 described above.
• Strength information R The first specific antenna and the second specific antenna are identified by referring to the transition of, and the difference information is generated. Then, based on the difference information, it is determined whether or not the difference amount exceeds the second reference amount a 2, and the result of the determination is stored in the predetermined area of the storage unit of the DKE C U 30.
• the D K execution unit 30 b is the intensity information R!
• the amount of time change of the intensity information R I at the first specific antenna is obtained by referring to the transition of. Then, it is determined whether or not the time change amount exceeds the predetermined first reference amount a 1, and the result of the determination is stored in a predetermined area of the storage unit of the DKE C U 300. For example, when the wireless terminal 1 ⁇ is located outside the vehicle on the left side of the vehicle 1, the receiving antenna 2 ⁇ a located on the side garnish on the left side of the vehicle 1 is specified as the first specific antenna, and the receiving antenna is specified. 2 ⁇ Intensity information at a It is determined whether or not the amount of change in RI with time exceeds the first reference amount a1.
• the amount of time change of the intensity information R I at each receiving antenna 20 a to 20 e has a predetermined tendency according to the radio wave shielding state in the wireless terminal 10.
• the shielded state of the wireless terminal 10 is also changed from the first shielded state to the transition of the intensity information I in the receiving antennas 2 Ob to 20e other than the receiving antenna 2 ⁇ a. 2
• the shielded state it has the same direction as the change in the intensity information RI at the above-mentioned receiving antenna 2 ⁇ a.
• the intensity information I of each receiving antenna 2 0 a to 20 e in the first shielded state measured by experiments conducted in advance and each receiving antenna 2 in the second shielded state 2 Intensity information from 0 a to 2 ⁇
• Information about the first reference amount al set based on RI is registered in advance.
• the first reference amount a 1 is set for each receiving antenna 20 a to 20 e.
• the intensity information I a and the second shield measured when the wireless terminal 10 is in the first shield state.
• the amount of difference from I b is set as the amount of time change of the intensity information R I at the corresponding receiving antenna.
• the DK execution unit 3 ⁇ b determines that the wireless terminal 1 ⁇ is in the second shielding state based on the difference amount of the intensity information RI, and is based on the time change amount of the intensity information RI.
• the wireless terminal 10 is in the second shielded state
• it is determined that the shielded state of the wireless terminal 10 is in the second shielded state.
• it is determined that the second shielded state is not obtained in at least one of the difference amount and the time change amount of the intensity information RI, it is determined that the shielded state of the wireless terminal 10 is the first shielded state.
• the DKECU 30 acquires the shielding information SI set in the storage unit of the DKECU 30. Then, the current shielding state of the wireless terminal 10 specified based on the shielding information s I and the analysis in the step of S a 05 It is determined whether or not the shielding state of the wireless terminal 1 ⁇ determined in process 2 matches (S a 0 6), and if it is determined that it does not match (N), the storage unit of DKECU 3 ⁇ . Executes the state update process to update the occlusion information SI (S a 0 7). In the state update process, the DK execution unit 30 b updates the obstruction information SI set in the predetermined area of the memory unit of DKECU 30 to the obstruction state determined by the analysis process 2. ⁇
• the shielding state of the wireless terminal 10 specified based on the shielding information SI in the step of S a 0 6 matches the shielding state determined in the analysis process 2 in the step of S a 0 5. If it is determined that this is the case, (Y), the analysis process 1 executed in step S a 0 2 is executed again (S a 0 8). Then, the current shielding state of the wireless terminal 10 specified based on the shielding information SI and the shielding state of the wireless terminal 10 determined in the analysis process 1 in the step of S a 08 match.
• step S a 09 It is determined whether or not (S a 09), and if it is determined to be true (Y), the occlusion information SI set in the storage unit of DKECU 30 is maintained without being updated, and the above-mentioned Return to step S a ⁇ 4. If the shielding state of the wireless terminal 10 specified based on the shielding information SI in step S a 09 does not match the shielding state determined in analysis process 1 in step S a 0 8. If it is determined, (N), the step of S a 0 7 is executed, and the occlusion information SI set in the memory B of DKECU 3 ⁇ is analyzed in the analysis process 1 of the step of S a 0 8. It updates to the determined shielded state and returns to the above-mentioned step S a 0 4.
• the DK execution unit 3 ⁇ b shall repeatedly execute the S a 0 4 to S a O 9 steps. Controls the shield information s I set in the storage unit of DKECU 30 to be updated at any time.
• the DKECU 30 in 100 is transmitted through the receiving antennas 20 a to 20 e by executing the shielding state determination process S a. It functions as a determination device for determining the shielded state of the wireless terminal 10 based on the radio information received from the wireless terminal 10.
• the DKECU 3 ⁇ is , As a device for determining the shielding state of the wireless terminal 10 It is designed to determine whether the terminal 10 is in the second shielded state, which is shielded by the shield.
• the DK execution unit 3 ⁇ b is the first specific antenna and the second specific antenna based on the intensity information RI of each receiving antenna 2 0 a to 2 ⁇ e. Identify the antenna and the first!
• the configuration is such that the shield state of the wireless terminal 10 is determined based on the strength information RI of the specific antenna and the strength information RI of the second specific antenna.
• the DK execution unit 30 b is the first specific antenna and Not only the strength information RI of the second specific antenna, but also all the receiving antennas 20 a to 20 e ⁇ ) The shield state of the wireless terminal 1 ⁇ may be judged based on the strength information RI.
• the D K E C U 30 first executes an information acquisition process for acquiring the intensity information R I and the shielding information S I (S b 0 1).
• the D K acquisition unit 3 ⁇ a is the strength information R! Of the radio signal received by each receiving antenna 20 a to 20 e.
• the D K acquisition unit 3 O a acquires the shielding information S I by referring to the predetermined area of the storage unit of the D K E C U 300.
• the DKECU 30 After the strength information RI and the obstruction information SI are acquired in the information acquisition process at the step of S b 0 1, the DKECU 30 is in the first obstruction state of the wireless terminal 10 based on the obstruction information SI. Determine if it is in the second shielded state (S b 0 2).
• step of S b 0 2 if it is determined that the wireless terminal 10 is in the second shielding state (Y), DKECU 30 performs a correction process (S b 0 3) to correct the intensity information RI. After the execution, the area setting process (S b 04) for determining the area where the wireless terminal 10 is located is executed. On the other hand, the step of S b 0 2 If it is determined that the wireless terminal 10 is in the first shielded state (N), the area setting process (S b 04) is executed without executing the correction process (S b 0 3).
• the D K execution unit 3 Ob acquires the correction data set in the predetermined area of the storage unit of the D K E C U 300. Then, the intensity information R I acquired by the D K acquisition unit 300 a in the step of S b 0 1 is corrected by using the correction data.
• the correction data is created based on experiments and simulations performed in advance. For example, the ratio of the intensity information RI measured in the first shielding state and the intensity information R! Measured in the second shielding state is It is mapped every 20 a to 20 e of the receiving antenna and registered as correction data in the storage unit of DKECU 300.
• the DK execution unit 3 Ob refers to the area determination data set in the predetermined area of the storage unit of the DKECU 30 and wirelessly based on the area determination data and the intensity information RI. Determine the area where terminal 1 ⁇ is located.
• the intensity information RI used in the area setting process when the above-mentioned step S b ⁇ 3 is executed, that is, in the step S b 0 2, the wireless terminal 1 ⁇ is in the first shielded state. If it is determined that the strength information RI is obtained in the step of S b 0 1, but if the step of S b 03 is not executed, that is, the wireless terminal in the step of S b 0 2 When it is determined that 10 is the second shielding state, the intensity information RI acquired by the step of S b 0 1 is the intensity information RI corrected by using the correction data.
• the area determination data is created based on experiments and simulations performed in advance. For example, the intensity information RI measured in the first concealed state and each receiving antenna 20 a to 20 e.
• the relationship with the area where the wireless terminal 10 is located is mapped and registered as area determination data in the storage unit of DKECU 30.
• the area where the wireless terminal 10 is located can be specified based on the area judgment data and the strength information RI. [. 0 8 5]
• the DKECU 30 determines the area where the wireless terminal 10 is located, and then shifts the area information ZI indicating the determined area to the predetermined area of the storage unit of the DKECU 30. Set.
• D K E C U 30 executes an information output process that outputs the instruction information I I and the area information Z I (S b 0 5).
• the DK execution unit 30 b refers to the predetermined area of the storage unit of the DKECU 3 ⁇ , acquires the instruction information II and the area information ZI, and transfers these information to the lock device 4 ⁇ . Control the output.
• the DK execution unit 3 ⁇ b is subjected to the above-mentioned shielding state determination process.
• the acquired shielding information SI it is determined whether or not the wireless terminal 10 is in the second shielding state shielded by the shield, and when it is determined to be in the second shielding state, it is determined.
• the configuration is such that the strength information RI is corrected using the correction data, and the DK execution unit 300b corrects the strength information RI using the shielding information SI.
• the DK execution unit 3 ⁇ b uses the correction data to determine the strength information RI when the wireless terminal 1 ⁇ is determined to be in the second shielded state. Is corrected, and the area information ZI regarding the area where the wireless terminal 10 is located is acquired based on the corrected intensity information RI, and the DK execution unit 3 ⁇ b is corrected using the obstruction information SI. The area information ZI is acquired based on the strength information RI. Then, the area information Z I is output to the lock device 40, and is referred to when the control for releasing the lock 2 1 is performed by the lock device 40.
• the DK execution unit 3 ⁇ b executes the information output process and gives the instruction information II a.
• Area information ZI is output to the lock device 4 ⁇ , for example, the lock 2 1 by the wireless terminal 1 ⁇ based on the radio signal received by each receiving antenna 2 ⁇ a to 20 e.
• the lock 2 1 is removed from the lock device 40 by sending the signal information II b to the lock device 40. It is designed to show the effect.
• the lock device 4 0 performs an information acquisition process for acquiring instruction information II b instructing the locking and unlocking of the lock 2 1.
• the information acquisition unit 4 ⁇ a acquires the information output by the area determination process S b executed by the above-mentioned DKECU 3 ⁇ , and the instruction information to unlock the lock 2 1 to the information. If II b is included, further area information ZI is acquired.
• the information acquisition unit 40 a refers to a predetermined area of the storage unit of the DKECU 30 and, when the instruction information II b is stored, outputs the instruction information II b and the area information ZI from the storage unit. It may be configured to acquire.
• the unlocking execution unit 4 ⁇ b determines whether or not the instruction information II b has been acquired by the information acquisition unit 4 ⁇ a (S c 0 2), and the instruction information II b is acquired. If it is determined to be (Y), the permitted area information ZI a preset in the predetermined area of the storage unit of the lock device 4 ⁇ and the area information ZI acquired by the information acquisition unit 4 ⁇ a are added. Based on this, it is determined whether or not the area where the wireless terminal 10 is located is within the permitted area where the unlocking of the lock 2 1 is permitted (S c 03).
• Allowed area information ZI a is information indicating the permitted area where unlocking of lock 2 1 by the unlocking execution unit 4 ⁇ b is permitted when the wireless terminal 1 ⁇ is placed in the corresponding area, for example.
• the area within a predetermined distance (for example, 2 m, etc.) from DKECU 30 is preset as the permitted area.
• step S c ⁇ 3. performs an unlocking control process that controls the operation of lock 2 1 for unlocking (S c 0 4).
• the unlocking execution unit 4 ⁇ b outputs a control signal instructing the unlocking of the lock 2 1 to the lock 2 1 and operates the lock 2 1 so as to lock the lock 2 1. ..
• the unlocking execution unit 40 b determines, for example, whether or not an abnormality has occurred based on the error log, and when it is determined that an abnormality has occurred, the inside and outside of the automobile 1 It may be configured to notify the predetermined device (for example, wireless terminal 10 ⁇ , in-vehicle ECU 2 ⁇ , etc.).
• the unlocking execution unit 4 Ob is from DKECU 3 ⁇ .
• the operation for unlocking the lock 2 1 is accepted by the wireless terminal 10 based on the acquired instruction information II b and the area information ZI, and the wireless terminal 10 is within the permitted area.
• a control signal instructing the unlocking of the lock 2 1 is output to the lock 2 1 to operate the lock 2 1 so as to unlock the lock 21.
• the unlocking system 100 of the present embodiment receives via a wireless terminal 10 that transmits a radio signal by radio waves in response to an operation by the user u and a receiving antenna 20 a to 20 e.
• Lock 2 1 based on the radio signal
• the configuration includes an in-vehicle ECU 20 that controls unlocking.
• a shield that shields radio waves between the wireless terminal 10 and the receiving antennas 20 a to 20 e of the in-vehicle ECU 30 (for example, a user who owns a portable device). If there is a body, etc.), the user u may not be able to unlock the lock 2 1 even if the unlocking operation is performed by the user u, which may reduce the convenience of the user U.
• the unlocking system 100 of the present embodiment receives the radio signal conveyed by the radio wave from the wireless terminal 10 by the receiving antennas 20 a to 20 e, and the wireless signal is received. It is an unlocking system that controls the unlocking of the lock 2 1 provided in the automobile 1 based on the above, and the strength information regarding the strength of the radio wave of the radio signal received by the receiving antennas 20 a to 20 e R!
• the DK acquisition unit 30 a of DKECU 3 ⁇ and the shield state determination process S a, the area determination process S b, and the unlock control process S c are executed as the unlock process to control the unlocking of the lock 21.
• the DK execution unit 30 b of the DKECU 30 and the unlock execution unit 40 b of the lock device 4 ⁇ are provided, and the DK execution unit 3 ⁇ b is based on the strength information RI in the shielding state determination process S a.
• the shield information s I related to the shield state of the wireless terminal 1 ⁇ is acquired, the strength information RI is corrected using the shield information s I in the area determination process sb, and the unlock execution unit 4 ⁇ b performs the unlock control process.
• the control to release the lock 2 1 is executed based on the area information ZI acquired based on the strength information RI corrected in S c.
• the control for unlocking the lock 2 1 based on the strength information RI corrected by the shielding information SI is controlled by the DK execution unit 3 ⁇ b and the unlocking execution unit.
• the accuracy of unlocking can be improved according to the shielded state of the wireless terminal 10 and the convenience of the user can be improved.
• the DK execution unit 3 ⁇ b is the strength information R! It is a configuration that analyzes the appearance frequency distribution and acquires the shielding information s I based on the shape of the appearance frequency distribution. According to such a configuration, in the unlocking system 100, the strength information R! The shielding information S I can be obtained based on the shape of the appearance frequency distribution of.
• the DK execution unit 3 ⁇ b analyzes the time change of the intensity information RI in the receiving antennas 20 a to 20 e, and is based on the time change amount of the intensity information RI. It is a configuration to acquire the shielding information SI. According to such a configuration, in the unlocking system 100, the shielding information SI can be acquired based on the time-varying amount of the strength information RI.
• the unlocking system 1 ⁇ ⁇ of the present embodiment is provided with a receiving antenna 2 ⁇ a to 20 e for receiving a radio signal from the wireless terminal 1 ⁇ , and a receiving antenna 2 0 a to 2 0 e includes the receiving antenna 20 a as the first antenna and the receiving antennas 20 b to 20 e as the second antenna having a different receiving environment of the radio wave from the first antenna.
• the DK execution unit 3 ⁇ b is the difference between the intensity information RI at the first receiving antenna 2 ⁇ a and the intensity information RI at the second receiving antennas 20 b to 20 e. It is a configuration to acquire the shielding information SI based on. According to such a configuration, in the unlocking system 100, the difference between the intensity information RI in the first receiving antenna 20 a and the intensity information RI in the second receiving antennas 20 b to 20 e The shielding information SI can be obtained based on this.
• the DK execution unit 3 ⁇ b analyzes the appearance frequency distribution of the radio wave intensity based on the intensity information RI, and the shape of the appearance frequency distribution.
• the wireless terminal 10 is shielded by the shield.
• Shielding information s I That is, the current wireless terminal 100 0 Shielding indicating that the shielding state is the second shielding state.
• Information SI is acquired, and in the area determination processing S b, the DK execution unit 3 ⁇ b identifies the shielding state of the wireless terminal 10 using the shielding information SI, and uses the correction data according to the specified shielding state. It is a configuration that corrects the intensity information RI.
• the shielding state of the wireless terminal 10 is determined based on the strength information RI, and the strength information RI is corrected by the correction data according to the determined shielding state. Since the unlocking of the lock 2 1 can be controlled based on the corrected strength information RI, the unlocking accuracy can be improved.
• the DK execution unit 3 ⁇ b is powered based on the strength information RI.
• the appearance frequency distribution of the wave intensity is analyzed, and the shape of the appearance frequency distribution is not the reference shape, and the intensity of the radio wave at the receiving antennas 20 a to 20 e drops beyond the first reference amount al.
• the area determination process S b uses the shielding information SI.
• the configuration is such that the shielding state of the wireless terminal 10 is specified and the intensity information RI is corrected by the correction data according to the specified shielding state.
• the shielding state of the wireless terminal 10 is determined based on the strength information RI, and the strength information RI is obtained by the correction data according to the determined shielding state. Since the unlocking of the lock 2 1 can be controlled based on the corrected and corrected strength information RI, the unlocking accuracy can be improved.
• the unlocking system 1 ⁇ ⁇ of the present embodiment is provided with a receiving antenna 2 ⁇ a to 20 e for receiving a radio signal from the wireless terminal 1 ⁇ , and a receiving antenna 2 0 a to 2 0 e includes the receiving antenna 20 a as the first antenna and the receiving antennas 20 b to 20 e as the second antenna having a different receiving environment of the radio wave from the first antenna.
• the DK execution unit 3 ⁇ b analyzes the appearance frequency distribution of the radio wave intensity based on the intensity information RI, and the shape of the appearance frequency distribution is the reference shape.
• the strength information RI indicates that the difference between the radio field intensity at the first receiving antenna 2 ⁇ a and the radio wave strength at the second receiving antennas 20 b to 20 e is less than the second reference amount a 2.
• the strength information RI is corrected by using the shielding information SI corresponding to the shielding state in which the radio terminal 10 is shielded by the shield.
• the shielding state of the wireless terminal 10 is determined based on the strength information RI, and the strength information RI is corrected by the correction data according to the determined shielding state. Since the unlocking of the lock 2 1 can be controlled based on the corrected strength information RI, the unlocking accuracy can be improved.
• the DK execution unit 3 ⁇ b is in the first shield state in which the wireless terminal 1 ⁇ is not shielded by the shield in the shield state determination process S a.
• the second shielded state in which the wireless terminal 10 is shielded by the shield, and the shield is the owner U (user U) of the wireless terminal 10 and the wireless terminal 10 is.
• the shielding information SI corresponding to the shielding state shielded by the shielding body is the radio end.
• the last 10 is the information corresponding to the shielded state that is shielded by the owner U of the wireless terminal 10.
• the wireless terminal 10 is not shielded by the user U's body in the first shielded state, and the wireless terminal 10 is shielded by the user U's body. It can be determined that it is in the second shielded state.
• the DK execution unit 3 ⁇ b relates to the area where the wireless terminal 10 is located based on the intensity information RI c corrected by using the shielding information SI.
• the unlocking execution unit 4 ⁇ b is configured to execute the control to release the lock 2 1 based on the area information ZI.
• the radio signal carried by the radio wave from the wireless terminal 10 is received by the receiving antennas 2 0 a to 20 e, and the radio is received. It is a control method of the unlocking system that controls the unlocking of the lock 2 1 provided in the automobile 1 based on the signal.
• the step of acquiring the information RI by the DK acquisition unit 3 ⁇ a of DKECU 30 and the shielding state determination process S a and the area determination process S b of the DK of DKECU 30 are used as the unlocking process to control the unlocking of lock 2 1.
• the DK execution unit 3 0 includes a step executed by the execution unit 3 ⁇ b and a step executed by the unlocking execution unit 40 b of the unlocking device 4 ⁇ as the unlocking process.
• b acquires the shielding information SI related to the shielding state of the wireless terminal 10 based on the intensity information RI in the shielding state determination process S a, and corrects the intensity information RI using the shielding information SI in the area determination process S b.
• the unlocking execution unit 40b is configured to execute the control to unlock the lock 2 1 based on the area information ZI acquired based on the strength information RI corrected in the unlocking control process S c.
• the control to release the lock 2 1 based on the strength information RI corrected by using the shielding information SI is controlled by the DK execution unit 3 ⁇ b and By executing the unlocking execution unit 40b, the unlocking accuracy can be improved according to the shielded state of the wireless terminal 10 and the convenience of the user can be improved.
• the DKECU 30 of the present embodiment is a control device that controls the release of the lock 2 1 based on the radio signal transmitted from the wireless terminal 10 and conveyed by radio waves and received by the receiving antennas 2 0 a to 20 e. And, the strength information about the strength of the radio wave of the radio signal received by the receiving antennas 20 a to 20 e R! It is equipped with a DK acquisition unit 30 a to acquire the DK, and a DK execution unit 30 b to execute the shield state determination process S a and the area determination process S b as the unlocking process to control the unlocking of the lock 2 1.
• the execution unit 3 ⁇ b acquires the shielding information SI regarding the shielding state of the wireless terminal 1 ⁇ based on the strength information RI in the shielding state determination processing S a, and uses the shielding information SI in the area determination processing S b to obtain the strength information.
• the RI is corrected to obtain the area information ZI based on the corrected intensity information RI
• the area information ZI and the instruction information II b included in the radio signal are used as information related to the control of unlocking the lock 2 1.
• the DKECU 30 corrects the intensity information RI using the shielding information SI, acquires the area information ZI based on the corrected intensity information RI, and controls the release of the lock 2 1.
• By outputting the area information ZI and the instruction information II b included in the radio signal as information related to the DKECU 30 can control the unlocking of the lock 2 1 in the lock device 40.
• the lock is based on the radio signal transmitted from the wireless terminal 10 and carried by radio waves and received by the receiving antennas 2 0 a to 20 e. It is a control method of the control device that controls the release of the signal, and the step of acquiring the intensity information RI regarding the strength of the radio wave of the radio signal received by the receiving antennas 20 a to 20 e by the DK acquisition unit 3 ⁇ a. , The step of executing the shield state determination process S a and the area determination process S b by the DK execution unit 3 ⁇ b as the unlocking process to control the release of the lock 2 1 is included, and the DK execution unit 3 ⁇ b is shielded.
• the shield information s I regarding the shield state of the radio terminal 10 is acquired based on the strength information RI, and in the area judgment process sb, the strength information RI is corrected and corrected using the shield information SI.
• the intensity information RI is corrected by using the shielding information SI
• the area information ZI is acquired based on the corrected intensity information RI.
• the DK E C U 3 ⁇ can control the release of the lock 2 1 in the lock device 4 ⁇ .
• the DKECU 30 of the present embodiment receives the radio signal carried by the radio wave from the radio terminal 10 with the receiving antennas 20 a to 20 e, and the receiving antenna 2 0 a of the radio signal. It is a judgment device that judges the shielding state of the wireless terminal 10 based on the radio wave strength at ⁇ 20 e, and the strength information regarding the radio wave strength of the radio signal received at the receiving antennas 20 a ⁇ 20 e R !!
• the DK acquisition unit 3 ⁇ a and the DK execution unit 3 ⁇ b that executes the shielding state determination process to determine the shielding state of the wireless terminal 1 ⁇ are provided.
• ⁇ b analyzes the appearance frequency distribution of radio wave intensity based on the intensity information RI, and when at least the shape of the appearance frequency distribution is the reference shape, the wireless terminal 10 ⁇ is shielded by a shield. Judging that it is a state, the appearance frequency distribution of the radio wave intensity is analyzed based on the intensity information RI, and if the shape of the appearance frequency distribution is not the standard shape, and the receiving antenna 20 a ⁇ based on the intensity information RI.
• the wireless terminal 10 When it is specified that the radio wave intensity at 20 e drops beyond the first reference amount (al), it is determined that the wireless terminal 10 is in a shielded state shielded by a shield, and the strength information If the appearance frequency distribution of the radio wave intensity is analyzed based on RI and the shape of the appearance frequency distribution is not the reference shape, and the radio wave intensity at the receiving antenna drops beyond the first reference amount based on the intensity information RI. If it is not specified to be performed, it is determined that the radio terminal 10 is not in a shielded state that is shielded by a shield. According to such a configuration, the DKE C U 30 can determine whether or not the wireless terminal 10 that transmits a wireless signal is in a shielded state that is shielded by a shield.
• the shielding state determination process S a of the present embodiment receives the radio signal conveyed by the radio wave from the radio terminal 10 at the receiving antennas 20 a to 20 e, and receives the radio signal. It is a judgment method to judge the shielding state of the wireless terminal 10 based on the radio wave strength of the antennas 20 a to 20 e, and is the radio wave of the radio signal received by the receiving antennas 20 a to 20 e. Steps to acquire strength information RI regarding strength by DK acquisition unit 3 ⁇ a , The step of executing the shielding state determination process for determining the shielding state of the radio terminal 1 ⁇ by the DK execution unit 3 ⁇ b is included.
• the appearance frequency distribution of the radio wave intensity is analyzed based on . If the appearance frequency distribution of the radio wave intensity is analyzed based on the intensity information RI and the shape of the appearance frequency distribution is not the standard shape, and the radio wave at the receiving antenna 20 a to 20 e is based on the intensity information RI. When it is specified that the strength decreases beyond the first reference amount (al), it is determined that the radio terminal 10 is in a shielded state covered by a shield, and the strength information R
• the appearance frequency distribution of the radio field intensity is analyzed based on I and the shape of the appearance frequency distribution is not the reference shape, and the radio wave intensity at the receiving antenna decreases beyond the first reference amount based on the intensity information RI. If this is not specified, it is determined that the radio terminal 10 is not in a shielded state that is shielded by a shield. According to such a configuration, in the shielding state determination process, it is possible to determine whether or not the wireless terminal 10 that transmits the radio signal is in the shielding state that is shielded by the shielding body.

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• Electromagnetism (AREA)
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• 2020
  • 2020-08-31 JP JP2020145299A patent/JP2022040535A/ja active Pending
• 2021
  • 2021-08-16 WO PCT/IB2021/057521 patent/WO2022043821A1/ja not_active Ceased
  • 2021-08-16 EP EP21766707.0A patent/EP4207111B1/en active Active
  • 2021-08-16 US US18/042,556 patent/US12522178B2/en active Active
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