JP2013096163A - Lock control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lock control system capable of preventing a door from being locked against intent of a user.SOLUTION: A portable device 200 estimates that a user intends to lock doors 22 to 62 and sends no response signal back when a predetermined time elapses after receiving of a request signal is interrupted. The portable device estimates that a user does not intend to lock the doors 22 to 62 and sends a response signal back regardless of receiving of the request signal when the request signal is received and until a predetermined time lapses after receiving of the request signal is interrupted. An on-vehicle device 100 regards that it is estimated that the user intends to lock the doors 22 to 62 and locks the doors 22 to 62 if the request signal from the portable device 200 is not received. The on-vehicle device 100 regards that it is estimated that the user does not intend to lock the doors 22 to 62 and locks no doors 22 to 62 when the request signal is received.

Description

  The present invention relates to a door locking control system.

  Conventionally, as an example of a door locking control system, there is a wireless locking / unlocking device disclosed in Patent Document 1.

  The wireless locking / unlocking device includes door timing detection means for detecting timing when a vehicle door (opening / closing body) is closed, and transmission request means for starting intermittent wireless transmission of a transmission request command in response to the door timing. A reception confirmation means for confirming reception of the code signal returned from the portable device in response to the transmission request command, and a locking control means for locking the vehicle door on condition that reception of the code signal is interrupted, Is provided.

Japanese Patent Laid-Open No. 62-37479

  As described above, the wireless locking / unlocking device automatically locks the door when the user who has the portable device leaves the transmission area of the transmission request command.

  By the way, for example, when a user who has a portable device gets off the vehicle and opens a trunk or a passenger door to unload a baggage or opens a passenger seat or a rear seat door to drop a child, The user who owns the machine may leave the transmission area. In such cases, the user often does not intend to lock the door. However, the wireless locking / unlocking device locks the vehicle door.

  Further, depending on the wireless environment (radio wave environment) for transmitting the transmission request command, the transmission area may be narrowed. Therefore, when the user who owns the portable device is talking near the boundary between the transmission area and the outside of the transmission area, the user who owns the portable device is out of the transmission area because the transmission area is narrowed. Sometimes. Even in such a case, the user often does not intend to lock the door. However, the wireless locking / unlocking device locks the vehicle door.

  As described above, in the wireless locking / unlocking device, the door may be automatically locked against the user's intention.

  This invention is made | formed in view of the said problem, and it aims at providing the locking control system which can suppress that a door is locked against a user's intention.

In order to achieve the above object, the locking control system according to claim 1 comprises:
A door side unit that locks the door and a portable device that can be carried by the user, and controls the locking of the door,
The door side unit
Door-side transmission means for transmitting a request signal indicating a request for a response signal to the portable device in a predetermined range around the door;
Door-side receiving means for receiving a response signal from the portable device,
The portable machine
A portable device receiving means for receiving the request signal;
Portable device side transmission means for returning a response signal in response to the request signal received by the portable device side reception means,
The door side unit or the portable device includes a guessing means for guessing whether or not the user intends to lock the door,
The door side unit does not lock the door when the guessing means estimates that the user does not intend to lock the door, and does not lock the door when the user assumes that the user intends to lock the door. It is provided with a locking means for performing the locking.

  In this way, if it is assumed that the user does not intend to lock the door, the door is not locked.If the user is assumed to lock the door, the door is locked. Locking of the door against the user's intention can be suppressed.

As shown in claim 2,
The estimation means is provided in the portable device, and estimates that the user intends to lock the door when a predetermined time elapses after reception of the request signal by the portable device-side receiving means is interrupted. Presuming that the user does not intend to lock the door when a predetermined time elapses after the request signal is received by the side receiving means and the reception of the request signal by the portable device side receiving means is interrupted,
The portable side transmission means does not send back a response signal when the guess means guesses that the user intends to lock the door, and guesses that the user does not intend to lock the door. If it is, the response signal is returned regardless of the reception of the request signal.
If the door-side receiving means has not received a response signal, the locking means assumes that the user has intended to lock the door, locks the door, and the door-side receiving means receives the response signal. In this case, it may be assumed that the user has not intended to lock the door and the door is not locked.

  In this way, it may be estimated whether or not the user intends to lock the door based on the reception status of the request signal by the portable device-side receiving means and the elapsed time since the reception of the request signal is interrupted. .

  For example, when a request signal is received by the portable device-side receiving means or until a predetermined time has elapsed after reception of the request signal by the portable device-side receiving means is interrupted, the user who has the portable device is near the door Can be considered to be in Thus, it is conceivable that the user in the vicinity of the door does not immediately get away from the door. Therefore, in such a case, it is estimated that the user who has the portable device does not intend to lock the door.

  In addition, when it is estimated that the user does not intend to lock the door, the portable device-side transmission unit returns a response signal regardless of reception of the request signal. That is, even if the portable device does not receive the request signal (that is, even when the user who owns the portable device is out of the transmission area of the request signal (a predetermined range around the door)) A response signal is returned until a predetermined time elapses after the interruption. Then, the locking means considers that it is assumed that the user does not intend to lock the door when the door side receiving means receives the response signal. Therefore, even when the estimation unit is provided in the portable device, the locking unit provided in the door-side unit can prevent the door from being locked according to the estimation result of the estimation unit. Moreover, by doing in this way, even if it is a case where the user who possessed the portable apparatus comes out of the transmission area of a request signal temporarily, it can suppress that a door is locked.

  On the other hand, when a predetermined time has elapsed since the reception of the request signal by the portable device receiving means is interrupted, the user who has the portable device can be regarded as having moved away from the door. In such a case, it is assumed that the user intends to lock the door.

  In addition, when it is estimated that the user intends to lock the door, the portable device-side transmission means does not send back a response signal. When the door-side receiving means has not received the response signal, the locking means considers that the user has assumed that the door is intended to be locked. Therefore, even when the estimation unit is provided in the portable device, the locking unit provided in the door side unit can lock the door according to the estimation result of the estimation unit. Moreover, by doing in this way, when the user possessing the portable device intends to lock the door and moves away from the door, the door can be locked.

As shown in claim 3,
The door side unit includes a radio field intensity measuring unit that measures the radio field intensity of the response signal received by the door side receiving unit,
The portable device side transmission means returns a response signal in response to the request signal received by the portable device side reception means, and returns a response signal for a predetermined period after the reception of the request signal by the portable device side reception means stops. Is what
The estimation means is provided in the door side unit, and when the radio field intensity measured by the radio field intensity measurement unit or the attenuation of the radio field intensity reaches a predetermined value, the user intends to lock the door. If the radio wave intensity or the attenuation amount of the radio wave intensity does not reach a predetermined value, it may be assumed that the user does not intend to lock the door.

  The response signal (radio wave) transmitted from the portable device becomes weaker as the distance from the portable device increases. Therefore, as shown in claim 3, whether or not the user intends to lock the door based on the radio wave intensity or the attenuation amount of the radio wave intensity in the response signal measured by the radio wave intensity measuring means provided in the door side unit. You may make it guess.

  For example, if the attenuation amount (or radio field intensity) of the radio field intensity does not reach a predetermined value, the user who has the portable device can be regarded as being in the vicinity of the door even if it is outside the transmission range of the request signal. . Thus, it is conceivable that the user in the vicinity of the door does not immediately get away from the door. Therefore, in such a case, it is estimated that the user who has the portable device does not intend to lock the door. In this way, the locking means considers that the user who owns the portable device does not intend to lock the door and is in the vicinity of the door when the attenuation of the radio wave intensity does not reach the predetermined value. If possible, the door can be locked.

  On the other hand, when the attenuation amount (or the radio wave intensity) of the radio field intensity reaches a predetermined value, the user who has the portable device can be regarded as having moved away from the door. In such a case, it is assumed that the user intends to lock the door. Therefore, the locking means locks the door when the attenuation of the radio field intensity reaches a predetermined value (that is, when the user holding the portable device can be regarded as moving away from the door with the intention of locking the door). It can be performed.

As shown in claim 4,
When transmitting the response signal after the reception of the request signal by the mobile device side receiving means is interrupted, the portable device side transmitting means returns a response signal including unreceived information indicating that the request signal has not been received. Is,
The estimating means is that the user intends to lock the door when the radio wave intensity measured by the radio wave intensity measuring means or the attenuation of the radio wave intensity reaches a predetermined value and the response signal includes unreceived information. You may make it guess.

  By doing in this way, when the user who possesses the portable device moves away from the door and goes out of the transmission range of the request signal (predetermined range around the door), the user intends to lock the door Can be guessed. That is, based on two pieces of information: information indicating whether or not the portable device is within the transmission range of the request signal (predetermined range in the vicinity of the door) and the attenuation (or radio wave intensity) of the radio wave intensity It can be assumed that the user intends to lock the door. Therefore, the door can be locked more in line with the user's intention.

As shown in claim 5,
The estimation means is provided in the door side unit, and when the predetermined time has elapsed after reception of the response signal by the door side reception means is interrupted, it is assumed that the user intends to lock the door, and the door side reception means It may be assumed that the user does not intend to lock the door until a predetermined time elapses after reception of the response signal is interrupted.

  In this way, it may be estimated whether or not the user intends to lock the door based on the reception status of the response signal by the door unit side receiving means and the elapsed time since the reception of the response signal is interrupted. .

  For example, when a response signal is received by the door-side receiving means, or until a predetermined time has elapsed after reception of the response signal by the door-side receiving means is interrupted, the user who has the portable device is in the vicinity of the door. Can be considered. Thus, it is conceivable that the user in the vicinity of the door does not immediately get away from the door. Therefore, in such a case, it is estimated that the user who has the portable device does not intend to lock the door. In this way, the locking means can be used when the response signal is received by the door-side receiving means or until a predetermined time elapses after reception of the response signal by the door unit-side receiving means is interrupted (that is, portable). If the user who owns the machine does not intend to lock the door and can be considered to be in the vicinity of the door), the door can be locked.

  On the other hand, when a predetermined time has elapsed since reception of the response signal by the door unit side receiving means is interrupted, the user who has the portable device can be regarded as having moved away from the door. In such a case, it is assumed that the user intends to lock the door. Therefore, the locking means may be regarded as a case where a predetermined time has elapsed since reception of the response signal by the door-side receiving means is interrupted (that is, the user who has the portable device has moved away from the door with the intention of locking the door). If possible, the door can be locked.

  According to a sixth aspect of the present invention, the door side unit is mounted on the moving body, and the door provided on the moving body may be locked. That is, the locking control system of the present invention can be applied to a moving body having a door.

  Moreover, as shown in claim 7, the door-side unit is mounted on the building, and the door provided in the building may be locked. That is, the locking control system of the present invention can be applied to a building having a door.

It is a block diagram which shows schematic structure of the locking control system in embodiment of this invention. It is an image figure which shows the detection area in embodiment of this invention. It is a flowchart which shows the processing operation of the vehicle equipment in embodiment of this invention. It is a flowchart which shows the processing operation of the portable apparatus in embodiment of this invention. (A) is an image figure which shows an example of the positional relationship of LF area and a portable machine, (b) is a table | surface which shows the LF reception condition and FR reception condition in each position of the portable apparatus in Fig.5 (a). It is a flowchart which shows the processing operation of the vehicle equipment in the modification 1. 6 is a table showing RF radio wave intensity and RF radio wave intensity attenuation at each position of the portable device in FIG. 10 is a flowchart showing processing operations of an in-vehicle device in Modification 2.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present embodiment, an example in which the locking control system of the present invention is applied to a vehicle is employed. More specifically, as an example, an example in which a locking control system is applied to a vehicle having five doors is adopted.

  As shown in FIG. 1, the locking control system includes an in-vehicle device (door side unit) 100 mounted on a vehicle and a portable device 200 that can be carried (carried) by the user. In response to a request signal (hereinafter also referred to as a request signal) transmitted from the in-vehicle device 100 to a predetermined range around the door of the vehicle, the portable device 200 responds to a response signal (hereinafter also referred to as a response signal). Is performed in two-way communication (more specifically, two-way encrypted communication). The in-vehicle device 100 locks the door based on bidirectional communication with the portable device 200. That is, the locking control system automatically locks (auto-locks) the door without the user touching the door.

  As shown in FIG. 1, the in-vehicle device 100 includes a control unit (door-side control unit) 10, a first transmission unit (door-side transmission unit) 20, a first antenna (door-side transmission antenna) 21, and a second transmission unit ( Door side transmission unit) 30, second antenna (door side transmission antenna) 31, third transmission unit (door side transmission unit) 40, third antenna (door side transmission antenna) 41, fourth transmission unit (door side transmission unit) ) 50, fourth antenna (door transmission antenna) 51, fifth transmission section (door transmission section) 60, fifth antenna (door transmission antenna) 61, reception section (door reception section) 70, reception antenna ( Door side receiving antenna) 71, locking / unlocking mechanism 80, and the like.

  The control unit 10 is configured as a well-known computer, and internally connects a CPU, a storage device (for example, RAM (DRAM, SRAM, etc.) or ROM (EPROM, EEPROM, etc.)), I / O, and these configurations. There are bus lines. The control unit 10 performs various arithmetic processes by executing a program stored in the ROM while the CPU uses the temporary storage function of the RAM, and executes control described later. For example, a request signal transmission instruction is executed. In addition, the control part 10 is provided with the counting means (time measuring means) which counts (time count) the elapsed time after receiving a response signal.

  The 1st transmission part 20-the 5th transmission part 60, and the 1st antenna 21-the 5th antenna 61 are external transmitters which transmit a request signal to the exterior. The first transmission unit 20 to the fifth transmission unit 60 transmit request signals via the first antenna 21 to the fifth antenna 61 in response to a control signal (transmission instruction) from the control unit 10. As the first antenna 21 to the fifth antenna 61, for example, an LF (low frequency) antenna can be adopted. Therefore, the first transmission unit 20 to the fifth transmission unit 60 transmit the request signal, for example, by radio waves in the LF band via the first antenna 21 to the fifth antenna 61. In addition, the arrival distance of this request signal (that is, LF band radio waves) is, for example, about 0.8 to 1.5 meters. In the following description, the first transmitter 20 to the fifth transmitter 60 and the first antenna 21 to the fifth antenna 61 are collectively referred to as an out-of-vehicle transmitter.

  As shown in FIG. 2, the first antenna 21 is provided on the front right door 22. The first transmitter 20 transmits a request signal to a predetermined range around the front right door 22 via the first antenna 21. The second antenna 31 is provided on the rear right door 32. The second transmission unit 30 transmits a request signal to a predetermined range around the rear right door 32 via the second antenna 31. The third antenna 41 is provided on the front left door 42. The third transmitter 40 transmits a request signal to a predetermined range around the front left door 42 via the third antenna 41. The fourth antenna 51 is provided on the rear left door 52. The fourth transmission unit 50 transmits a request signal to a predetermined range around the rear left door 52 via the fourth antenna 51. The fifth antenna 61 is provided on the back door (luggage door) 62. The fifth transmitter 60 transmits a request signal to a predetermined range around the back door 62 via the fifth antenna 61. In the following description, the front right door 22, the rear right door 32, the front left door 42, the rear left door 52, and the back door 62 may be collectively described as doors 22 to 62.

  The range in which this request signal is transmitted is also referred to as a detection area (LF area). Therefore, in other words, a detection area (LF area) corresponding to the arrival distance of the request signal is formed around each door 22, 32, 42, 52, 62 of the vehicle. That is, the first transmission unit 20 to the fifth transmission unit 60 and the first antenna 21 to the fifth antenna 61 are located around the doors 22, 32, 42, 52, and 62 in the detection area corresponding to the arrival distance of the request signal. In other words, the (LF area) is formed.

  The receiving unit 70 is provided in the vehicle and receives a response signal transmitted from the portable device 200 described later. The receiving unit 70 receives, for example, a response signal transmitted from the portable device 200 using a radio wave in the UHF band by a reception antenna (UHF antenna) 71. The receiving unit 70 outputs the received response signal to the control unit 10. In the following description, the receiving unit 70 and the receiving antenna 71 are collectively referred to as a receiver.

  The locking / unlocking mechanism 80 includes a door lock motor or the like. In the locking / unlocking mechanism 80, the door lock motor rotates (forward or reverse) in accordance with a control signal from the control unit 10 to lock and unlock the door.

  In addition to these configurations, the vehicle-mounted device 100 includes a door lock position sensor that detects whether the doors 22 to 62 are locked or unlocked and outputs the detection result to the control unit 10. It may be a thing. Furthermore, the in-vehicle device 100 may include a courtesy switch that detects whether the doors 22 to 62 are open or closed and outputs the detection result to the control unit 10.

  The portable device 200 is provided with a battery (not shown) and operates by being supplied with power from the battery, and includes a control unit (portable device side control unit) 210, a receiving unit (portable device side receiving unit). ) 211, a transmission unit (portable device side transmission unit) 212, an antenna (portable device side transmission / reception antenna, portable device side transmission antenna and portable device side reception antenna) 213, and the like.

  The control unit 210 is configured, for example, as a well-known computer, and internally connects a CPU, a storage device (for example, RAM (DRAM, SRAM, etc.) and ROM (EPROM, EEPROM, etc.)), I / O, and these configurations. A bus line is provided. The control unit 210 performs various arithmetic processes by executing a program stored in the ROM while the CPU uses the temporary storage function of the RAM, and executes control (process) described later. For example, a response signal transmission instruction or the like is executed in response to the request signal. In addition, the control unit 210 includes a counting unit (timer) that counts (time counts) an elapsed time since reception of the request signal is interrupted.

  The receiving unit 211 receives a request signal transmitted from the vehicle-side external transmitter. The receiving unit 211 receives a request signal transmitted from the vehicle-side external transmitter via the antenna 213 using LF band radio waves. In addition, the reception unit 211 outputs the received request signal to the control unit 210.

  The transmission unit 212 transmits a response signal to the vehicle-side receiver in response to a control signal (transmission instruction) from the control unit 210. The transmission unit 212 transmits a response signal using a UHF band radio wave to the vehicle-side receiver via the antenna 213. The arrival distance of this response signal (that is, the UHF band radio wave) is, for example, about several meters. Therefore, the reach distance of the response signal is sufficiently longer than the reach distance of the request signal. In other words, the range (RF area) in which the response signal is transmitted is sufficiently wider than the range (LF area) in which the request signal is transmitted.

  Here, although the structure provided with the control part 210 is employ | adopted as an example, this invention is not limited to this. For example, the reception unit 211 may perform a function (process) such as a response signal transmission instruction or a count of elapsed time since reception of a request signal is interrupted.

  Here, based on FIGS. 3-5, the processing operation of the locking control system in this embodiment is demonstrated.

  In FIG. 5A, a two-dot chain line A indicates that the user who has the portable device 200 gets off from the driver's seat of the vehicle and moves from the vehicle in the order of region t1, region t2, region t3, region t4, and region t5. It shows the movement away. A two-dot chain line B in FIG. 5A shows that the user who has the portable device 200 gets off the driver's seat of the vehicle and moves to the luggage compartment in the order of region t6, region t7, region t8, region t9, and region t10. It shows the movement to do.

  In addition, areas t2, t3, t6, t8, and t9 are areas in which it is determined that a predetermined time has not elapsed since reception of the request signal is interrupted, while areas t4 and t5 are where reception of the request signal is interrupted. It is determined that a predetermined time has elapsed since then.

  Further, the RF reception in FIG. 5B indicates whether or not the in-vehicle device 100 receives a response signal. RF reception “◯” indicates that the in-vehicle device 100 has received a response signal (that the response signal has been received). On the other hand, the RF reception “x” indicates that the in-vehicle device 100 does not receive a response signal (the response signal could not be received).

  In addition, LF reception in FIG. 5B indicates whether or not the request signal is received in the portable device 200. LF reception “◯” indicates that the portable device 200 has received the request signal (that the request signal has been received). On the other hand, LF reception “×” indicates that the portable device 200 has not received a request signal (that the request signal could not be received).

  First, the processing operation of the in-vehicle device 100 will be described based on the flowchart of FIG. When the ignition switch is off and all the doors 22 to 62 are closed, the in-vehicle device 100 executes the processing operation shown in the flowchart of FIG. 3 every predetermined time. In other words, the flowchart shown in FIG. 3 starts every predetermined time when the ignition switch is off and all the doors 22 to 62 are closed.

  In step S10 of FIG. 3, the in-vehicle device 100 forms a detection area. At this time, the control unit 10 instructs each of the first transmission unit 20 to the fifth transmission unit 60 to transmit a request signal. Each of the first transmitting unit 20 to the fifth transmitting unit 60 transmits a request signal via each of the first antenna 21 to the fifth antenna 61 in response to the transmission instruction. That is, the in-vehicle device 100 transmits a request signal indicating a request for a response signal to the portable device 200 to a predetermined range around each door 22, 32, 42, 52, 62 (door-side transmission unit).

  In step S11 of FIG. 3, the in-vehicle device 100 determines whether or not there is a response signal. That is, the in-vehicle device 100 determines whether a response signal has been received from the portable device 200. When the response signal is transmitted from the portable device 200, the in-vehicle device 100 receives the response signal at the receiving unit 70 via the receiving antenna 71 (door side receiving means). Then, the receiving unit 70 outputs this response signal to the control unit 10. Therefore, the control unit 10 determines whether or not there is a response signal depending on whether or not the response signal is acquired from the reception unit 70. If it is determined that there is a response signal (YES determination), the process proceeds to step S12. If it is determined that there is no response signal (NO determination), the process proceeds to step S14.

  More specifically, the in-vehicle device 100 compares (collates) an identification code included in the received response signal with a registration code registered in advance in its own storage device. When the identification code and the registration code satisfy a predetermined correspondence (for example, coincidence), it is determined that there is a response signal, and when the predetermined correspondence is not satisfied or when the response signal cannot be received, there is no response signal. judge.

In step S12 of FIG. 3, the in-vehicle device 100 starts counting. At this time, the control part 10 counts (time-measures) the elapsed time after receiving a response signal. Further, in step S13 of FIG. 3, the in-vehicle device 100 determines whether or not the elapsed time after receiving the response signal has reached a predetermined time (for example, about 10 minutes to several tens of minutes) (whether or not the predetermined time has elapsed). )). At this time, the control unit 10 determines whether or not an elapsed time after receiving the response signal has reached a predetermined time, based on the count value started in step S12. And when it determines with predetermined time having passed, it progresses to step S14, and when it determines with predetermined time not having passed, it returns to step S10 In addition, the locking control system of this invention does not perform this step S12,13. Can also achieve the purpose. When steps S12 and S13 are not performed, if the determination in step S11 is YES, the process of the flowchart shown in FIG. 3 is terminated.

  In step S14 of FIG. 3, the in-vehicle device 100 locks all the doors 22 to 62 (locking means). At this time, the control unit 10 outputs a control signal indicating locking of all the doors 22 to 62 to the locking / unlocking mechanism 80 (instructing locking of all the doors 22 to 62). And according to this control signal, the locking / unlocking mechanism 80 rotates the door lock motor to lock all the doors 22 to 62.

  In step S15 in FIG. 3, the in-vehicle device 100 clears the count. At this time, the control unit 10 clears the count started in step S12.

  In addition, although demonstrated later, the portable device 200 estimates whether the user intends to lock the doors 22 to 62. Then, when it is estimated that the user intends to lock the doors 22 to 62, a response signal is not returned, and when it is estimated that the user does not intend to lock the doors 22 to 62, A response signal is returned regardless of reception. That is, the in-vehicle device 100 receives a response signal when the user does not intend to lock the doors 22 to 62, and cannot receive a response signal when the user intends to lock the doors 22 to 62. .

  Therefore, when it is assumed that the user does not intend to lock the doors 22 to 62, the in-vehicle device 100 (locking means) does not lock all the doors 22 to 62, and the user locks the doors 22 to 62. If it is estimated that the door is intended, all the doors 22 to 62 are locked. In other words, when the vehicle-mounted device 100 (locking means) receives the response signal, it is assumed that the user has not intended to lock the doors 22 to 62, and does not lock all the doors 22 to 62. If no signal is received, it is assumed that the user intends to lock the doors 22 to 62, and all the doors 22 to 62 are locked.

  Next, the processing operation of the portable device 200 will be described based on the flowchart of FIG. The portable device 200 executes the processing operation shown in the flowchart of FIG. 4 every predetermined time. In other words, the flowchart shown in FIG. 4 starts every predetermined time.

  In step S20 of FIG. 4, the portable device 200 waits for a request signal. In step S21 of FIG. 4, the portable device 200 determines whether or not there is a request signal. That is, the portable device 200 determines whether or not a request signal has been received from the in-vehicle device 100. The receiving unit 211 receives a request signal transmitted from the in-vehicle device 100 via the antenna 213 (portable device side receiving means). Then, the receiving unit 211 outputs this request signal to the control unit 210. Therefore, the control unit 210 determines whether or not there is a request signal depending on whether or not the request signal is acquired from the reception unit 211. If it is determined that there is a request signal (YES determination), the process proceeds to step S27. If it is determined that there is no request signal (NO determination), the process proceeds to step S22.

  In step S27, the portable device 200 stores the history. At this time, the control unit 210 stores (stores) history (history information) indicating that the request signal has been received in its own storage device (for example, EEPROM). The reason why the history (history information) is stored in this way is to measure the elapsed time since the reception of the request signal is interrupted, which will be described later.

  In step S28, the portable device 200 transmits a response signal. At this time, the control unit 210 instructs the transmission unit 212 to transmit a response signal. The transmission unit 212 transmits a response signal via the antenna 213 in response to the transmission instruction. That is, the portable device 200 transmits a response signal to the request signal from the in-vehicle device 100 within a predetermined range around the portable device 200 (portable device side transmission unit).

  As described above, when the request signal is received, the user who has the portable device 200 is in the LF area, and therefore can be regarded as being in the vicinity of the doors 22 to 62. It is conceivable that the user in the vicinity of the doors 22 to 62 is not immediately away from the doors 22 to 62. Therefore, in such a case, it is estimated that the user who has the portable device 200 does not intend to lock the doors 22 to 62. That is, when receiving the request signal, the portable device 200 (control unit 210) estimates that the user does not intend to lock the doors 22 to 62 (estimating means).

  For example, in a situation where there is a user who has the portable device 200 in the areas t1, t7, and t10 in FIG. 5A, the portable device 200 estimates that the user does not intend to lock the doors 22 to 62, and the response signal Send. Note that, as described above, the vehicle-mounted device 100 (locking unit) that has received the response signal does not lock all the doors 22 to 62 because it is assumed that the user does not intend to lock the doors 22 to 62. .

  In step S22 of FIG. 4, the portable device 200 determines whether or not there is a history. At this time, the control unit 210 determines whether or not history information is stored in its own storage device. As will be described later, this history information is cleared when a predetermined time elapses after reception of the request signal is interrupted. The predetermined time is set to about several seconds to several minutes, for example. That is, when the history information is not stored in the storage device, the portable device 200 can be regarded as being sufficiently away from the vehicle. Therefore, when it is determined that there is no history (NO determination), the processing of the flowchart of FIG. 4 is terminated. That is, the portable device 200 ends the process of the flowchart of FIG. 4 without transmitting a response signal.

  On the other hand, when the history information is stored in the storage device, since the predetermined time has not passed since the reception of the request signal is interrupted (after the portable device 200 goes out of the LF area from the LF area), the portable device 200 Can be considered close to the vehicle. Thus, if it is determined that there is a history (YES determination), the process proceeds to step S23.

  In step S23 of FIG. 4, the portable device 200 starts counting. At this time, the control unit 210 counts (measures) an elapsed time after the request signal is interrupted.

  Further, in step S24 of FIG. 4, the in-vehicle device 100 determines whether or not the elapsed time after the request signal is interrupted has reached a predetermined time (whether or not the predetermined time has elapsed). At this time, the control unit 210 determines whether or not an elapsed time after the request signal is interrupted has reached a predetermined time, based on the count value started in step S23.

  When a predetermined time has elapsed since the reception of the request signal is interrupted, the user who has the portable device 200 can be regarded as having moved away from the doors 22 to 62. In such a case, the portable device 200 estimates that the user intends to lock the doors 22 to 62 (estimating means). That is, the portable device 200 estimates that the user intends to lock the doors 22 to 62 when a predetermined time elapses after reception of the request signal is interrupted (estimating means). And when it determines with predetermined time having passed (YES determination), it progresses to step S26.

  In step S26 of FIG. 4, the portable device 200 clears the count and history. At this time, the control unit 210 clears the count started in step S23 and the history information stored in its own storage device. As described above, the portable device 200 estimates that the user intends to lock the doors 22 to 62 and transmits a response signal when a predetermined time has elapsed since reception of the request signal is interrupted. Then, the process of the flowchart of FIG.

  On the other hand, the user who possesses the portable device 200 can be regarded as being in the vicinity of the doors 22 to 62 until a predetermined time has elapsed after reception of the request signal is interrupted. Thus, it is conceivable that the user in the vicinity of the doors 22 to 62 is not immediately away from the doors 22 to 62. Therefore, in such a case, the portable device 200 estimates that the user who has the portable device 200 does not intend to lock the doors 22 to 62 (estimating means). That is, the portable device 200 estimates that the user does not intend to lock the doors 22 to 62 until a predetermined time elapses after reception of the request signal is interrupted (estimating means). If it is determined that the predetermined time has not elapsed (NO determination), the process proceeds to step S25.

  In step S25 of FIG. 4, the portable device 200 transmits a response signal. As described above, when it is estimated that the user does not intend to lock the doors 22 to 62, the portable device 200 returns a response signal regardless of reception of the request signal (portable device side transmission unit). In other words, when it is estimated that the user does not intend to lock the doors 22 to 62, the portable device 200 returns a response signal even if the request signal is not received (portable device side transmission means). In this way, the portable device 200 returns a response signal in response to the request signal, and returns a response signal for a predetermined period after reception of the request signal is interrupted.

  For example, in a situation where there is a user who has the portable device 200 in the areas t2, t3, t6, t8, and t9 in FIG. 5A, the portable device 200 assumes that the user does not intend to lock the doors 22 to 62. Then, a response signal is transmitted. And as above-mentioned, the vehicle equipment 100 (locking means) which received the response signal considers that the user did not intend locking the doors 22-62, and does not lock all the doors 22-62. .

  On the other hand, in a situation where there is a user who has the portable device 200 in the region t4 in FIG. 5A, the portable device 200 estimates that the user intends to lock the doors 22 to 62 and does not transmit a response signal. And as above-mentioned, the vehicle equipment 100 (locking means) which has not received the response signal considers that the user intended locking of the doors 22-62, and locks all the doors 22-62. Do. That is, the in-vehicle device 100 is configured such that when the user who has the portable device 200 gets off the driver's seat of the vehicle and moves to the regions t1, t2, and t3 and moves to the region t4, that is, at the timing p1, all the doors 22˜ 62 is locked.

  As described above, when it is estimated that the user does not intend to lock the doors 22 to 62, the doors 22 to 62 are not locked, and it is assumed that the user intends to lock the doors 22 to 62. In this case, since the doors 22 to 62 are locked, the locking of the doors 22 to 62 against the user's intention can be suppressed. Therefore, even if the user who possesses the portable device 200 is temporarily out of the LF area, the doors 22 to 62 can be prevented from being locked.

  Further, when the doors 22 to 62 are locked, a mechanical sound is emitted from the locking / unlocking mechanism 80. Although not intended, the user may feel annoyed that the doors 22 to 62 are locked and that a mechanical sound is generated when the doors 22 to 62 are locked. However, since the locking control system in the present embodiment can suppress the locking of the doors 22 to 62 against the user's intention as described above, such annoyance can also be suppressed.

  Further, as described in the present embodiment, in the portable device 200, whether or not the user intends to lock the doors 22 to 62 depending on the reception status of the request signal and the elapsed time since the reception of the request signal is interrupted. You may make it guess.

  In this embodiment, when it is estimated that the user does not intend to lock the doors 22 to 62, the portable device 200 returns a response signal regardless of reception of the request signal. And the vehicle equipment 100 considers that it was estimated that the user did not intend locking of the doors 22-62, when a response signal is received. Therefore, even when the user determines whether or not the user intends to lock the doors 22 to 62 on the portable device 200, the in-vehicle device 100 does not lock the doors 22 to 62 according to the estimation result. Can be.

  In addition, when it is estimated that the user intends to lock the doors 22 to 62, the portable device 200 does not return a response signal. And when onboard equipment 100 has not received a response signal, it considers that it was guessed that the user intended locking of doors 22-62. Therefore, even if it is a case where it is determined whether the user intends to lock the doors 22 to 62 on the portable device 200, the in-vehicle device 100 can lock the doors 22 to 62 according to the estimation result. it can.

  The doors 22 to 62 may be unlocked automatically (with a response signal) or manually (for example, with a response signal and holding the door).

  As mentioned above, although preferable embodiment of this invention was described, this invention is not restrict | limited to the embodiment mentioned above at all, and various deformation | transformation are possible in the range which does not deviate from the meaning of this invention.

(Modification 1)
In the above-described embodiment, whether or not the user intends to lock the doors 22 to 62 is determined based on the reception status of the request signal and the elapsed time since the reception of the request signal is interrupted. An example of guessing was adopted. However, the present invention is not limited to this.

  The response signal (radio wave) transmitted from the portable device 200 becomes weaker as the distance from the portable device 200 increases. Therefore, in the in-vehicle device 100, it may be estimated whether or not the user intends to lock the doors 22 to 62 based on the attenuation amount of the radio wave intensity of the response signal.

  The locking control system in the first modification and the locking control system in the above-described embodiment are different in means for estimating whether or not the user intends to lock the doors 22 to 62. The in-vehicle device 100 of Modification 1 has a function (radio wave intensity measuring means) for measuring radio wave intensity (reception intensity, RF radio wave intensity) of a received response signal (radio wave, RF radio wave). The in-vehicle device 100 stores the measurement result (radio wave intensity information indicating the radio wave intensity) in its own storage device. At this time, the in-vehicle device 100 stores the radio wave intensity information in the order received (measured order).

  Further, the in-vehicle device 100 of the first modification assumes that the user intends to lock the doors 22 to 62 when the measured attenuation of the radio wave intensity reaches a predetermined value, and the attenuation of the radio wave intensity is When the predetermined value is not reached, it is estimated that the user does not intend to lock the doors 22 to 62.

  In addition, when the portable device 200 in the first modification returns a response signal when the request signal is not received, the portable device 200 returns a response signal including unreceived information indicating that the request signal has not been received. is there. That is, the portable device 200 returns a response signal including unreceived information for a predetermined period after reception of the request signal is interrupted. Except for this point, the portable device 200 in Modification 1 is the same as the portable device 200 in the above-described embodiment. Therefore, the detailed description regarding the portable device 200 is omitted. Note that the basic configurations of the in-vehicle device 100 and the portable device 200 are the same as those in the above-described embodiment, and thus detailed description thereof is omitted.

  Here, based on the flowchart shown in FIG. 6, the processing operation of the vehicle-mounted device 100 in the first modification will be described. The in-vehicle device 100 executes the processing operation shown in the flowchart of FIG. 6 at predetermined time intervals when the ignition switch is off and all the doors 22 to 62 are closed. In other words, the flowchart shown in FIG. 6 starts every predetermined time when the ignition switch is off and all the doors 22 to 62 are closed. Note that steps S30 to S35 in FIG. 6 are the same as steps S10 to S15 in FIG.

  If the in-vehicle device 100 determines in step S33 that the predetermined time has not elapsed (NO determination), the in-vehicle device 100 proceeds to step S36. In step S36, the in-vehicle device 100 determines whether there is unreceived information. At this time, the control unit 10 determines whether or not unreceived information is included in the received response signal. If it is determined that there is unreceived information (that is, the response signal includes unreceived information), the process proceeds to step S37, and there is no unreceived information (that is, the response signal does not include unreceived information). When it determines, it returns to step S30. When the response signal includes unreceived information, the user who has the portable device 200 is outside the LF area, but the predetermined period has not elapsed since the reception of the request signal is interrupted. On the other hand, when the unreceived information is not included in the response signal, the user who has the portable device 200 indicates a situation in the LF area.

  In step S37, the in-vehicle device 100 determines whether or not the attenuation amount of the radio wave intensity is equal to or greater than a predetermined value. And when it determines with attenuation amount being more than predetermined value, it progresses to step S34. When the attenuation amount of the radio field intensity reaches a predetermined value, it can be considered that the user who has the portable device 200 is out of the LF area and has moved away from the doors 22 to 62. In such a case, it is estimated that the user intends to lock the doors 22 to 62 (estimating means). That is, the in-vehicle device 100 estimates that the user intends to lock the doors 22 to 62 when the attenuation amount of the radio wave intensity of the response signal reaches a predetermined value and the response signal includes unreceived information.

  Therefore, the in-vehicle device 100 has a case where the attenuation amount of the radio wave intensity reaches a predetermined value (that is, when the user who has the portable device 200 can think that the doors 22 to 62 are locked away from the door). The doors 22 to 62 can be locked (locking means). Furthermore, when the user holding the portable device 200 moves away from the doors 22 to 62 and comes out of the request signal transmission range (a predetermined range around the doors 22 to 62), the user locks the doors 22 to 62. It can be assumed that it is intended. Therefore, the doors 22 to 62 can be locked more in line with the user's intention.

  On the other hand, if it is determined that the attenuation is not greater than or equal to the predetermined value, the process returns to step S30. When the attenuation amount of the radio field intensity does not reach the predetermined value, the user who has the portable device 200 can be regarded as being in the vicinity of the doors 22 to 62 although it is outside the LF area. Thus, it is conceivable that the user in the vicinity of the doors 22 to 62 is not immediately away from the doors 22 to 62. Therefore, in such a case, it is estimated that the user who has the portable device 200 does not intend to lock the doors 22 to 62 (estimating means). By doing in this way, in-vehicle device 100, when the amount of attenuation of field intensity has not reached a predetermined value (that is, the user who possessed the portable device does not intend to lock doors 22 to 62, the doors 22 to The doors 22 to 62 can be locked (locking means).

  For example, the radio wave intensity (medium) of the response signal transmitted from the portable device 200 in the region t2 is larger than the radio wave strength (large) of the response signal transmitted from the portable device 200 in the region t1 in FIG. Becomes smaller (see FIG. 7). Similarly, the radio wave intensity (small) of the response signal transmitted from the portable device 200 in the area t3 is smaller than the radio wave intensity (medium) of the response signal transmitted from the portable apparatus 200 in the area t2 ( (See FIG. 7). Therefore, the amount of attenuation of the RF radio wave is less than the region t1, when the user who has the portable device 200 gets out of the driver's seat of the vehicle and moves in the order of the regions t1, t2 than when the user gets out of the driver's seat of the vehicle. The case of moving in the order of t2 and t3 becomes larger. Here, as the predetermined value of the attenuation amount for estimating whether or not the user intends to lock the doors 22 to 62, the RF radio wave intensity at the region t1 and the RF radio wave intensity at the region t3 are used. The value corresponding to the difference is adopted.

  Therefore, in a situation where the user who has the portable device 200 gets off the driver's seat of the vehicle and moves only to the areas t1 and t2, the attenuation amount does not reach the predetermined value. Therefore, in such a situation, the in-vehicle device 100 estimates that the user does not intend to lock the doors 22 to 62 and does not lock the doors 22 to 62.

  In the case of the two-dot chain line B in FIG. 5A, the user who has the portable device 200 is only moving around the vehicle. Therefore, as shown in FIG. 7, the attenuation amount does not reach a predetermined value in the regions t6 to t10. Therefore, the in-vehicle device 100 estimates that the user does not intend to lock the doors 22 to 62 and does not lock the doors 22 to 62.

  On the other hand, in a situation where the user who has the portable device 200 gets off the driver's seat of the vehicle and moves from the region t1 to t3, the attenuation amount reaches a predetermined value. Therefore, in such a situation, the in-vehicle device 100 estimates that the user intends to lock the doors 22 to 62 and locks the doors 22 to 62. That is, the in-vehicle device 100 locks all the doors 22 to 62 at the time point when the user carrying the portable device 200 gets out of the driver's seat of the vehicle and moves to the areas t1, t2, and t3, that is, at the timing p2.

  Thus, even if it is estimated whether or not the user intends to lock the doors 22 to 62 based on the attenuation amount of the radio wave intensity of the response signal, the same effect as the locking control system in the above-described embodiment can be obtained. Can play.

  In the first modification, the portable device 200 that returns a response signal including unreceived information for a predetermined period after reception of the request signal is interrupted is adopted, but the present invention is not limited to this. The portable device 200 can be employed even if it returns a response signal that does not include unreceived information within a predetermined period after reception of the request signal is interrupted.

  Moreover, although the modification 1 employ | adopted the example which estimates whether the user intends locking of the doors 22-62 using the attenuation amount of a radio field intensity, you may use a radio field intensity simply. That is, when the radio wave intensity reaches a predetermined value, it is assumed that the user intends to lock the doors 22 to 62, and when the radio wave intensity does not reach the predetermined value, the user intends to lock the doors 22 to 62. You may make it guess that it is not (guessing means).

(Modification 2)
In the above-described embodiment, whether or not the user intends to lock the doors 22 to 62 is determined based on the reception status of the request signal and the elapsed time since the reception of the request signal is interrupted. An example of guessing was adopted. However, the present invention is not limited to this.

  As in the second modification, in the in-vehicle device 100, it is estimated whether or not the user intends to lock the doors 22 to 62 based on the reception status of the response signal and the elapsed time since the reception of the response signal is interrupted. You may make it do. That is, in the in-vehicle device 100, when a predetermined time elapses after reception of the response signal is interrupted, it is assumed that the user intends to lock the doors 22 to 62, and the predetermined time elapses after reception of the response signal is interrupted. Until then, it is assumed that the user does not intend to lock the doors 22 to 62.

  The locking control system in the modification 2 and the locking control system in the above-described embodiment are different in means for estimating whether or not the user intends to lock the doors 22 to 62. Note that the portable device 200 in Modification 2 transmits a response signal only when a request signal from the in-vehicle device 100 is received. Therefore, the unreceived information is not included in the response signal. The basic configurations of the in-vehicle device 100 and the portable device 200 are the same as those in the above-described embodiment, and thus detailed description thereof is omitted.

  Here, based on the flowchart shown in FIG. 8, the processing operation of the vehicle-mounted apparatus 100 in the modification 2 is demonstrated. When the ignition switch is off and all the doors 22 to 62 are closed, the in-vehicle device 100 executes the processing operation shown in the flowchart of FIG. 8 every predetermined time. In other words, the flowchart shown in FIG. 8 starts every predetermined time when the ignition switch is off and all the doors 22 to 62 are closed.

  Note that steps S40 and S41 in FIG. 8 are the same as steps S10 and S11 in FIG. Further, Step S45 in FIG. 8 is the same as S14 in FIG. Further, the value of the predetermined time adopted in step S44 is different from the value adopted in the determination in step S13 of FIG. As the value of the predetermined time employed in step S44, the value employed in the determination in step S24 of FIG. 4 is employed.

  If the in-vehicle device 100 determines that there is a response signal (YES determination) in step S41, the in-vehicle device 100 proceeds to step S47. On the other hand, if it is determined in step S41 that there is no response signal (NO determination), the process proceeds to step S42.

  In step S47 of FIG. 8, the in-vehicle device 100 stores a history. At this time, the control unit 10 saves (stores) history (in-vehicle device side history information) indicating that the response signal has been received in its own storage device (for example, EEPROM). The reason why the history (in-vehicle device side history information) is saved is to measure the elapsed time after the reception of the response signal is stopped, which will be described later.

  Moreover, the vehicle equipment 100 complete | finishes the process of the flowchart of FIG. 8 after the process by step S47. That is, when the response signal is received, the user who has the portable device 200 is in the LF area. That is, it can be considered that the doors 22 to 62 are in the vicinity. Thus, it is conceivable that the user in the vicinity of the doors 22 to 62 is not immediately away from the doors 22 to 62. Therefore, in such a case, it is estimated that the user who has the portable device 200 does not intend to lock the doors 22 to 62. By doing in this way, when in-vehicle device 100 (locking means) receives a response signal (that is, the user holding portable device 200 does not intend to lock doors 22 to 62, doors 22 to 62). The doors 22 to 62 can be locked.

  In step S42, the in-vehicle device 100 determines whether or not there is a history. At this time, the control unit 10 determines whether or not the in-vehicle device side history information is stored in its own storage device. As will be described later, the vehicle-mounted device side history information is cleared when a predetermined time elapses after reception of the response signal is interrupted. The predetermined time is set to about several seconds to several minutes, for example. That is, when the in-vehicle device side history information is not stored in the storage device, the portable device 200 can be regarded as being sufficiently away from the vehicle. Therefore, when it is determined that there is no history (NO determination), the process of the flowchart of FIG.

  On the other hand, when the in-vehicle device side history information is stored in the storage device, the portable device 200 can be regarded as being near the vehicle. Therefore, if it is determined that there is a history (YES determination), the process proceeds to step S43.

  In step S43 in FIG. 8, the in-vehicle device 100 starts counting. At this time, the control unit 10 counts (measures) an elapsed time after the response signal is interrupted.

  Further, in step S44 of FIG. 8, the in-vehicle device 100 determines whether or not the elapsed time after the response signal is interrupted has reached a predetermined time (whether or not the predetermined time has elapsed). At this time, the control unit 10 determines whether or not the elapsed time after the response signal is interrupted has reached a predetermined time, based on the count value started in step S43.

  When the predetermined time has elapsed since the reception of the response signal is interrupted, the user who has the portable device 200 can be regarded as having moved away from the doors 22 to 62. In such a case, the portable device 200 estimates that the user intends to lock the doors 22 to 62 (estimating means). That is, the portable device 200 estimates that the user intends to lock the doors 22 to 62 when a predetermined time has elapsed after reception of the response signal (by the door-side receiving unit) is interrupted (estimating unit). And when it determines with predetermined time having passed (YES determination), it progresses to step S45.

  And the onboard equipment 100 locks all the doors in step S45 (locking means), and progresses to step S46. As described above, the in-vehicle device 100 estimates that the user intends to lock the doors 22 to 62 when the predetermined time has elapsed since reception of the response signal is interrupted, and locks all the doors 22 to 62. I do. In step S46 in FIG. 8, the in-vehicle device 100 clears the count and history. At this time, the control unit 10 clears the count started in step S43 and the in-vehicle device side history information stored in its own storage device.

  On the other hand, until the predetermined time elapses after reception of the response signal is interrupted, the user who possesses the portable device 200 can be regarded as being in the vicinity of the doors 22 to 62, although he / she is outside the LF area. Thus, it is conceivable that the user in the vicinity of the doors 22 to 62 is not immediately away from the doors 22 to 62. Therefore, in such a case, the portable device 200 estimates that the user who has the portable device 200 does not intend to lock the doors 22 to 62 (estimating means). That is, the in-vehicle device 100 estimates that the user does not intend to lock the doors 22 to 62 until a predetermined time elapses after reception of the response signal is interrupted (estimating means). If it is determined that the predetermined time has not elapsed (NO determination), the process proceeds to step S48.

  In step S48 in FIG. 8, the in-vehicle device 100 determines whether or not there is a response signal, as in step S41. If it is determined that there is no response signal (NO determination), it is assumed that the user does not intend to lock the doors 22 to 62, so that all the doors 22 to 62 are locked even if there is no response signal. Return to step S44. By doing in this way, the vehicle-mounted device 100 (locking means) allows the user holding the portable device 200 to open the door until the predetermined time elapses after reception of the response signal (by the door-side receiving means) is interrupted. If the doors 22 to 62 are not intended to be locked and can be regarded as being in the vicinity of the doors 22 to 62), the doors 22 to 62 can be locked.

  On the other hand, if it is determined that there is a response signal (YES determination), it is assumed that the user who has the portable device 200 has left the LF area out of the LF area and has returned to the LF area again, and proceeds to step S46.

  As described above, in the in-vehicle device 100, it is estimated whether the user intends to lock the doors 22 to 62 based on the reception status of the response signal and the elapsed time after the reception of the response signal is interrupted. Also, the same effect as the locking control system in the above-described embodiment can be obtained.

  In the above-described embodiment, Modification 1 and Modification 2, an example in which the locking control system of the present invention is applied to a vehicle (moving body) is employed, but the present invention is not limited to this. For example, the object of the present invention can be achieved even when applied to a moving body other than a vehicle, a building (a house, a warehouse, a store), or the like. That is, the door-side unit may be mounted on a moving body other than the vehicle, and the door provided on the moving body may be locked. Further, the door unit may be mounted on a building and may lock a door provided in the building.

  DESCRIPTION OF SYMBOLS 10 Control part, 20 1st transmission part, 21 1st antenna, 30 2nd transmission part, 31 2nd antenna, 40 3rd transmission part, 41 3rd antenna, 50 4th transmission part, 51 4th antenna, 60 1st 5 transmitting unit, 61 5th antenna, 70 receiving unit, 71 receiving antenna, 80 locking / unlocking mechanism, 100 in-vehicle device, 200 portable device, 210 control unit, 211 antenna

Claims (7)

A door-side unit that locks the door and a portable device that can be carried by the user, and a locking control system that controls the locking of the door,
The door side unit is
Door-side transmission means for transmitting a request signal indicating a request for a response signal to the portable device in a predetermined range around the door;
Door-side receiving means for receiving a response signal from the portable device,
The portable device is
A portable device receiving means for receiving the request signal;
Portable device side transmission means for returning a response signal in response to the request signal received by the portable device side reception means,
The door-side unit or the portable device includes a guessing unit that guesses whether or not the user intends to lock the door,
The door side unit does not lock the door when the guessing means estimates that the user does not intend to lock the door, and assumes that the user intends to lock the door A locking control system comprising locking means for locking the door when the door is locked. The estimation means is provided in the portable device, and it is estimated that the user intends to lock the door when a predetermined time has elapsed since reception of the request signal by the portable device-side reception means is interrupted. The user does not intend to lock the door when a request signal is received by the portable device side receiving means and until a predetermined time elapses after reception of the request signal by the portable device side receiving means is interrupted. Guess
The portable device side transmission means does not return a response signal when the estimation means estimates that the user intends to lock the door, and the estimation means determines that the user intends to lock the door. If it is presumed that the request signal has not been received, a response signal is returned regardless of the reception of the request signal.
When the door-side receiving means has not received a response signal, the locking means regards that it is assumed that the user intends to lock the door, locks the door, and the door-side receiving means 2. The locking control system according to claim 1, wherein when the response signal is received, it is assumed that the user does not intend to lock the door, and the door is not locked. The door side unit includes a radio field intensity measuring unit that measures a radio field intensity of a response signal received by the door side receiving unit,
The portable device-side transmitting means returns a response signal in response to the request signal received by the portable device-side receiving means, and responds for a predetermined period after reception of the request signal by the portable device-side receiving means is interrupted. A reply signal,
The estimation means is provided in the door side unit, and the user intends to lock the door when the radio field intensity measured by the radio field intensity measurement unit or the attenuation of the radio field intensity reaches a predetermined value. 2. The locking according to claim 1, wherein it is estimated that the user does not intend to lock the door when the radio wave intensity or the attenuation of the radio wave intensity does not reach a predetermined value. Control system. When the portable device side transmitting means returns the response signal after the reception of the request signal by the portable device side receiving means is interrupted, a response signal including unreceived information indicating that the request signal has not been received. To reply,
The estimation means determines that the user intends to lock the door when the radio wave intensity measured by the radio wave intensity measurement means or the attenuation of the radio wave intensity reaches a predetermined value and the response signal includes unreceived information. The locking control system according to claim 3, wherein the locking control system is estimated.   The inference means is provided in the door side unit, and infers that the user intends to lock the door when a predetermined time elapses after reception of the response signal by the door side reception means is interrupted, 2. The locking control system according to claim 1, wherein it is assumed that the user does not intend to lock the door until a predetermined time has elapsed after reception of the response signal by the door-side receiving unit is interrupted.   The locking control system according to any one of claims 1 to 5, wherein the door side unit is mounted on a moving body and locks a door provided on the moving body.   The locking control system according to any one of claims 1 to 5, wherein the door-side unit is mounted in a building and locks a door provided in the building.

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