JP2006161273A - Keyless entry device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a keyless entry device which is streamlined in constitution, and improved in cost performance. <P>SOLUTION: The keyless entry device 10 is formed of a radio communication processing section 12 (wireless transceiver 12a) and an approach sensor 11. The radio communication processing section 12 carries out radio communication processing in both a neighboring area outside a vehicle (vehicle outside area) and an in-vehicle area (vehicle inside area) as a radio communication area in which communication is possible to/from a smart key 4. The approach sensor 11 is arranged at the center of the vehicle 2 having an approach detective area wider than the radio communication area. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a keyless entry device that performs wireless communication processing involving authentication processing and a portable device that holds unique authentication information based on a human approach detection level for a vehicle.

  Conventionally, in a vehicle such as an automobile, a lock / unlock signal transmitted from a portable device having a wireless communication function is used as a system for performing opening / closing control of an opening / closing body such as a door or a trunk that covers a part of the vehicle body so as to be openable / closable. There is known a keyless entry system in which a lock / unlock state of an opening / closing body can be remotely controlled by receiving it with an in-vehicle wireless device and driving a lock / unlock mechanism of the opening / closing body.

  Further, in recent years, a unique authentication code set in the portable device based on communication data between the in-vehicle wireless device and the portable device, and an authentication registered in advance in a memory of a control device linked to the in-vehicle wireless device. A passive keyless entry system has been developed in which the code is checked and the lock / unlock state of the opening / closing body is automatically controlled according to the check result.

  For example, Patent Document 1 discloses a keyless entry system that detects the movement of a person within a monitoring range set around a vehicle and starts outputting a calling radio wave from a portable device in accordance with the detection result. According to this keyless entry system, even when a car or the like is arranged adjacent to each other, it is possible to suppress the inadvertent output of the calling radio wave, and to prevent the battery from running without deteriorating convenience.

  Here, in such a keyless entry system, an approach sensor for detecting the approach of a person is provided for each opening and closing body (that is, a door or a trunk) of the vehicle, and in the approach detection area of these approach sensors, The proximity detection function is realized by making up the area and the neighboring area outside the vehicle, and wireless devices such as a wireless tuner are arranged at the front, rear and front parts of the vehicle. The wireless communication function of the portable device and the wireless device is realized by mutually complementing the region inside the vehicle and the region outside the vehicle in the wireless communication area of the wireless device.

JP 2001-295523 A

  However, in the above prior art (Patent Document 1), the function is realized by superimposing the proximity detection area and the wireless communication area which are narrower than the detection area and the communication area to be supplemented in realizing the keyless entry function. Therefore, it is necessary to install a plurality of sensors and a plurality of wireless devices, which increases the space for mounting on the vehicle, and further reduces the cost performance in configuring the system. .

  Further, since the above-described conventional technology provides a uniform service only for the keyless entry system, it is obtained from a proximity sensor that detects the approach of a person and a wireless device that performs wireless communication with a portable device. The information could not be used effectively, and it was not possible to effectively coordinate with other devices mounted on the vehicle.

  Accordingly, the present invention has been made to solve the above-described problems (problems) of the prior art, and provides a keyless entry device capable of reducing the device configuration and improving cost performance. With the goal.

  In order to solve the above-described problems and achieve the object, a keyless entry device according to the invention of claim 1 includes a portable device that holds unique authentication information based on a person's approach detection level with respect to the vehicle, and an authentication process. A wireless communication processing means for performing wireless communication processing as a wireless communication area capable of communicating with the portable device in the vicinity of the outside of the vehicle and in the vehicle, and a center of the vehicle And an approach detection means having an approach detection area wider than the wireless communication area.

  A keyless entry device according to a second aspect of the present invention is the keyless entry device according to the first aspect, wherein the wireless communication area and the approach detection area are a wireless communication area or an approach detection area existing in the vehicle, and It has a wireless communication area outside the vehicle or an outside area that is an approach detection area, and the person detects the inside area, the outside area or the approach detection from the approach detection level of the person to the vehicle detected by the approach detection means. From the person area identification means for identifying where it is outside the area and the radio wave intensity of the wireless communication processing by the wireless communication processing means, whether the portable device is in the in-vehicle area, the out-of-vehicle area or out of the wireless communication area A portable device area identifying means for identifying whether or not a person exists and the person area identifying means Then, on the basis of the identified area information and the area information identified by the portable device area identifying means that the portable device exists, the vehicle further includes a situation specifying means for specifying the situation facing the vehicle or the person. It is characterized by that.

  The keyless entry device according to the invention of claim 3 is the keyless entry device according to claim 2, wherein the situation specifying means is identified by the person area identification means that a person exists outside the in-vehicle area or the approach detection area, and If it is identified by the portable device area identifying means that the portable device is present in the area outside the vehicle, the portable device is identified as being in a situation where it has been left outside the vehicle.

  Further, the keyless entry device according to the invention of claim 4 is the keyless entry device according to claim 2 or 3, wherein the situation specifying means is identified by the person area identification means that a person exists outside the vehicle area or the approach detection area, And if it is identified by the portable device area identifying means that the portable device is present in the in-vehicle area, it is specified that the portable device is left in the vehicle.

  The keyless entry device according to a fifth aspect of the present invention is the keyless entry device according to the second, third, or fourth aspect, wherein the situation specifying means is identified by the person area identifying means that a person is present in the in-car area, and the portable If it is identified by the aircraft area identification means that the portable device is in the in-vehicle area, it is specified that the vehicle occupant is in the vehicle.

  The keyless entry device according to the invention of claim 6 is the keyless entry device according to any one of claims 2 to 5, wherein the situation specifying means is identified by the person area identification means that a person is present in an area outside the vehicle, and If it is identified by the portable device area identifying means that the portable device is present in the area outside the vehicle, the portable device holder is identified as being in the vicinity of the vehicle.

  The keyless entry device according to the invention of claim 7 is the keyless entry device according to any one of claims 2 to 6, wherein the situation specifying means includes the area information identified by the person area identification means that the person is present and The area information identified as the presence of the portable device by the portable device area identification means is monitored in time series to identify the situation facing the vehicle or the person.

  The keyless entry device according to an eighth aspect of the present invention is the keyless entry device according to the seventh aspect, wherein the situation specifying means continues for a predetermined time when the person area identification means causes a person to exist outside the vehicle area or the proximity detection area. If the portable device is identified outside the wireless communication area by the portable device area identifying means and is continuously identified for a predetermined time, the vehicle is identified as being parked.

  According to a ninth aspect of the present invention, in the keyless entry device according to the eighth aspect, when the situation specifying means specifies that the vehicle is parked, the person area identifying means allows the person If the portable device area identifying means identifies that the portable device is outside the wireless area, the vehicle is identified as having entered a third party.

  According to a tenth aspect of the present invention, in the keyless entry device according to the seventh, eighth, or ninth aspect of the invention, the situation specifying unit is at least once within a predetermined time when a person exists in the in-vehicle area by the person area identifying unit. If the portable device is identified and continuously identified for a predetermined time when the portable device is outside the wireless communication area by the portable device area identifying means, the passenger is identified as waiting in the vehicle. .

  According to the present invention, a wireless communication processing unit that performs wireless communication processing as a wireless communication area that can communicate with a portable device in the vicinity of the outside of the vehicle and in the vehicle, and the central portion of the vehicle are compared with the wireless communication area. Since the proximity sensor having a wide proximity detection area is provided, it is possible to reduce the device configuration and improve the cost performance.

  Further, according to the present invention, it is identified whether the person exists in the in-vehicle area, the outside area or the outside of the approach detection area from the approach detection level of the person with respect to the vehicle, and the portable device is Identify whether it is in the car area, outside the car area or outside the wireless communication area, and face the vehicle or person based on the area information identified as the presence of the person and the area information identified as the presence of the portable device. The information obtained from the proximity sensor that detects the approach of a person and the wireless device that performs wireless communication with the portable device can be used effectively, and other devices mounted on the vehicle It becomes possible to take effective cooperation.

  Further, according to the present invention, if it is identified that a person exists outside the in-vehicle area or the approach detection area, and if it is identified that the portable device exists in the outside area, the portable device is left out of the vehicle. Therefore, it is possible to take measures to prevent the portable device from being left outside the vehicle. Further, in connection with this, it becomes possible to take measures to prevent the portable device from being trapped inside the vehicle due to misplacement of the portable device outside the vehicle.

  In addition, according to the present invention, if it is identified that a person exists outside the vehicle area or the proximity detection area, and if the portable device is identified as existing in the vehicle interior area, the portable device is left behind in the vehicle. Therefore, it is possible to take measures to prevent the portable device from being left behind in the vehicle. Further, in connection with this, it is possible to take measures to prevent a proper occupant of the vehicle from being returned to the vehicle due to forgetting to place the portable device in the vehicle.

  Further, according to the present invention, if it is identified that a person is present in the in-car area and the portable device is identified in the in-car area, the occupant of the vehicle is identified as being on board, It becomes possible to take countermeasures against thugs when boarding.

  Further, according to the present invention, if it is identified that a person is present in the outside area of the vehicle and the portable device is identified as existing in the outside area of the vehicle, the holder of the portable device is present in the vicinity of the vehicle. Since it is determined that there is a vehicle, it is possible to take measures to prohibit the operation of on-vehicle devices that need to be operated only when boarding.

  Further, according to the present invention, the area information identified as the presence of a person and the area information identified as the presence of a portable device are monitored in time series to identify the situation that the vehicle or person is facing. Therefore, the situation can be specified in more detail and accurately, and it becomes possible to more effectively cooperate with other devices mounted on the vehicle.

  Further, according to the present invention, if a person exists outside the vehicle area or the proximity detection area, it is continuously identified for a predetermined time, and if a portable device is located outside the wireless communication area, it is continuously identified for a predetermined time. In this case, since it is determined that the vehicle is parked, it is possible to take a theft prevention measure. Further, in connection with this, it is possible to take action prohibition measures for in-vehicle devices from the viewpoint of suppressing wasteful consumption of battery power.

  Further, according to the present invention, when it is identified that the vehicle is parked, if the person is identified as being in the in-car area and the portable device is identified as being outside the radio area, the vehicle is Since it has been determined that the situation has been invaded by a third party, it becomes possible to take alarm measures and intimidation measures against the theft of third parties.

  In addition, according to the present invention, if a person is present at least once within a predetermined time when the person is present in the vehicle area, and if the portable device is continuously identified for a predetermined time when the portable device is located outside the wireless communication area, Since it is determined that the vehicle is waiting in the vehicle, it is possible to take measures to prevent the passenger from being trapped in the vehicle.

  Exemplary embodiments of a keyless entry device according to the present invention will be described below in detail with reference to the accompanying drawings. In the following, after describing the outline and features of the keyless entry device according to the present invention, the keyless entry device according to the first embodiment will be described. Finally, various modifications (second embodiment) will be described as other embodiments. ) Will be explained.

(Overview and features)
First, the outline and features of the keyless entry device according to the present invention will be described. FIG. 1 is a conceptual diagram for explaining the outline and features of a keyless entry device according to the present invention. The keyless entry system 1 performs a wireless communication process with an authentication process with a smart key 4 that holds unique authentication information based on the approach detection level of the person 3 with respect to the vehicle 2, and locks / When it is authenticated that it is an unlock instruction, lock control / unlock control is performed according to the lock / unlock instruction.

  Here, the keyless entry device 10 according to the present invention includes a wireless communication processing unit 12 (wireless transceiver 12a) that performs wireless communication processing as a wireless communication area that can communicate with the smart key 4 in the vicinity of the outside of the vehicle and in the vehicle, There is a main feature in that a configuration including a proximity sensor 11 that is disposed in the center of the vehicle 2 and has a wider proximity detection area than the wireless communication area is adopted. And cost performance can be improved.

  This key feature will be described in detail. As shown in FIG. 1, the keyless entry device 10 includes a wireless communication processing unit 12 having a wireless communication area capable of communicating with the smart key 4 in the vicinity outside the vehicle and in the vehicle. By adopting the proximity sensor 11 having a wide proximity detection area compared to the wireless communication area for the proximity sensor 11 that detects the approach of the person 3 to the vehicle 2, a detection region that should be supplemented to realize the keyless entry function and The communication area can be supplemented by the single wireless communication processing unit 12 and the proximity sensor 11. Furthermore, by disposing the proximity sensor 11 at the center of the vehicle 2, it is possible to construct a uniform proximity detection area in all directions of the vehicle 2 and to accurately detect the approach of a person to the vehicle 2. Yes.

  Therefore, in the example of the prior art described above, by realizing the function by overlapping the proximity detection area and the wireless communication area which are narrower than the detection area and the communication area to be supplemented in realizing the keyless entry function, Rather than arranging a plurality of sensors and a plurality of wireless devices, a keyless entry device is provided by supplementing a detection region and a communication region to be supplemented in realizing a keyless entry function with a single wireless communication processing unit and an approach sensor. As a result, the cost performance can be improved. Furthermore, in connection with this, by arranging this proximity sensor in the center of the vehicle, it is possible to construct a uniform approach detection area in all directions of the vehicle and accurately detect the approach of a person to the vehicle. Is possible.

  Next, a keyless entry device according to the first embodiment will be described. FIG. 2 is a system configuration diagram illustrating the configuration of the keyless entry device according to the first embodiment. Here, after describing the configuration of the keyless entry device according to the first embodiment, procedures of various processes of the keyless entry device will be described.

(Configuration of keyless entry device)
As shown in FIG. 2, the keyless entry device 10 includes a door ECU 20 that performs door-related control such as door unlocking / locking and double-lock locking, an engine ECU 30 that performs engine-related control, and a shift ECU 40 that performs shift-related control. Are connected to an anti-theft ECU 50 that performs anti-theft detection and alarm control, a suspension ECU 60 that controls suspension such as active suspension, and an AV unit 70 that functions as an audio player and a DVD player.

  As shown in the figure, the keyless entry device 10 includes an approach sensor 11, a wireless communication processing unit 12, a speaker 13, a storage unit 14, and a control unit 15.

  Among them, the proximity sensor 11 is a sensor such as a radar sensor or an ultrasonic sensor that detects the approach of the person 3 to the vehicle 2, and specifically, is arranged in the center of the vehicle 2 as shown in FIG. 1. And has a wider approach detection area than the wireless communication area. The proximity sensor 11 outputs an approach detection level to the control unit 15 when detecting the presence of a person in the approach detection area.

  The wireless communication processing unit 12 is a processing unit that performs wireless communication processing with a smart key 4 holding unique authentication information and authentication processing based on the approach detection level of the person 3 with respect to the vehicle 2 detected by the proximity sensor 11. It is.

  More specifically, as shown in FIG. 1, a wireless transceiver 12a that performs wireless communication in the vicinity of the outside of the vehicle and inside the vehicle as a wireless communication area that can communicate with the smart key 4, and authentication that uniquely identifies the vehicle 2 An authentication processing unit 12b (not shown) that holds information and performs authentication processing of the held authentication information and the authentication information received from the smart key 4 is provided. The wireless transceiver 12 a outputs a reception level (S level) to the control unit 15 when wireless communication with the smart key 4 is performed.

  The storage unit 14 is a storage unit (storage unit) that stores data and programs necessary for various processes performed by the control unit 15, and includes a situation-response measure storage table 14a. This situation-response measure storage table 14a associates the situation that the vehicle or the person is facing with the measure corresponding to the situation for each combination of the area where the person 3 exists and the area where the smart key 4 exists. It is a table to memorize. For example, as shown in FIG. 3, the situation “in-vehicle area” and the smart key “in-vehicle area” are stored in association with the situation “the vehicle occupant is on board” and the corresponding measure “outside handle operation unlocking prohibition measure”. is doing.

  The control unit 15 includes a control program such as an OS (Operating System), a program that defines various processing procedures, and an internal memory for storing necessary data, and is a processing unit that executes various processes using these. Particularly, those closely related to the present invention include a person area identification processing unit 15a, a smart key area identification processing unit 15b, a situation specifying unit 15c, and a countermeasure measure execution unit 15d.

  Among these, the person area identification processing unit 15a identifies whether the person exists in the in-vehicle area, the out-of-vehicle area, or the outside of the approach detection area based on the approach detection level of the person with respect to the vehicle detected by the approach sensor 11. It is. For example, if the approach detection level is “A” or higher, it is identified as “inside area”, and if “approach detection level> 0” and less than “A”, it is identified as “outside area”, and “ If the approach detection level is “0”, it is identified as “out of the approach detection area”.

  The smart key area identification processing unit 15b is a processing unit that identifies whether the smart key 4 is present in the in-vehicle area, the out-of-vehicle area, or the outside of the wireless communication area from the radio wave intensity of the wireless communication processing by the wireless communication processing unit 12. . For example, if the reception level (S level) is “D” or higher, it is identified as “in-vehicle area”, and if “reception level> 0” and less than “D”, it is identified as “outside area”. If “approach detection level = 0”, it is identified as “out of wireless communication area”.

  The situation specifying unit 15c is configured to detect the vehicle 2 or the person 3 based on the area information identified by the person area identification processing unit 15a and the area information identified by the smart key area identification processing unit 15b that the smart key exists. It is a processing unit that identifies the situation that is facing. Specifically, the situation corresponding to the area identified as the person 3 and the area identified as the smart key 4 are extracted from the situation-response measure storage table 14a.

  For example, the situation specifying unit 15c is identified by the person area identification processing unit 15a that the person 3 exists in the “in-car area”, and the smart key area identification processing unit 15b is identified by the smart key 4 in the “in-car area”. If so, it is specified that “the passenger of the vehicle 2 is on board”. In this way, by specifying that the occupant of the vehicle 2 is in the boarding state, it is possible to take measures against violence during boarding such as an unlocking prohibition measure by “outside handle operation”.

  Here, the response measure execution unit 15d is a processing unit that executes a response measure according to the situation specified by the situation specifying unit 15c, and specifically, a response corresponding to the situation specified by the situation specifying unit 15c. The measure is extracted from the situation-response measure storage table 14a, and the extracted measure is executed.

  That is, the unlocking prohibition measure by the “outside handle operation” corresponding to “the passenger in the vehicle 2 is riding” is extracted from the situation-response measure storage table 14a, and the unlocking prohibition by the extracted “outside handle operation” is prohibited. A measure execution instruction is output to the door ECU 20 to execute a countermeasure.

  In this way, by performing the unlocking prohibition measure by “outside handle operation”, it is possible to eliminate intrusion by a third party from the outside, and it is possible to prevent damage caused by thieves.

  In addition, the situation specifying unit 15c identifies that the person 3 is present in the “in-vehicle area” or “outside the approach detection area” by the person area identification processing unit 15a, and the smart key 4 is identified as “outside the vehicle” by the smart key area identification processing unit 15b. If it is identified that it exists in the “area”, it is specified that “the situation where the smart key 4 is left outside the vehicle”.

  In this way, by specifying that “the smart key 4 has been left outside the vehicle”, a voice notification measure (if a person is present in “out of the proximity detection area”, an email notification measure is performed). .), Engine stop / start prohibition measures, shift knob fixing measures, deadlock prohibition measures, alarm set release / prohibition measures, or a combination of these measures can be taken, and measures to prevent the portable device from being left outside the vehicle are taken It becomes possible. Further, in connection with this, it becomes possible to take measures to prevent the portable device from being trapped inside the vehicle due to misplacement of the portable device outside the vehicle.

  In this case, the response measure execution unit 15d selects the “sound notification measure (if the person is outside the approach detection area”) corresponding to the “situation where the smart key 4 has been left outside the vehicle”. ), Engine stop / start prohibition measures, shift knob fixing measures, deadlock prohibition measures, alarm set release / prohibition measures, or a combination thereof are extracted from the situation-response measures storage table 14a and extracted. Implement each response action.

  More specifically, a voice guidance (or mail if a person is present outside the approach detection area) is output (transmitted) from the speaker 13 indicating that “the smart key 4 has been left outside the vehicle”. ), It is possible to notify that the smart key 4 is left out of the vehicle.

  Furthermore, by executing the countermeasure by outputting the “engine stop / start prohibition measure” execution instruction to the engine ECU 30, it is possible to prevent the smart key 4 from leaving the vehicle without leaving the vehicle outside.

  Similarly, by outputting the execution instruction of “shift knob fixing measure” to the shift ECU 40 and executing the corresponding measure, it is possible to prevent the smart key 4 from leaving the vehicle without leaving the vehicle outside.

  Then, by outputting the execution instruction of “deadlock prohibition measure” to the door ECU 20 and executing the corresponding measure, it is possible to prevent the smart key 4 from being trapped inside the vehicle due to the misplacement of the smart key 4 outside the vehicle.

  Furthermore, by executing an instruction to execute “alarm set release / prohibition” to the anti-theft ECU 50 and executing the corresponding device, it is possible to prevent the right occupant of the vehicle 2 from performing alarm control. Can do.

  Further, the situation specifying unit 15c recognizes the person in the “in-vehicle area” by the person area identification processing unit 15a at least once within a predetermined time, and the smart key 4 identifies the “wireless communication area” by the smart key area identification processing unit 15b. If it is continuously identified for a predetermined time as being “outside”, it is specified that “the passenger is waiting in the vehicle”. Thus, by specifying that “the passenger is waiting in the vehicle”, it is possible to take measures to prevent the passenger from being trapped in the vehicle.

  In this case, the response measure execution unit 15d extracts the “double lock unlocking measure” corresponding to “the passenger is waiting in the vehicle” from the situation-response measure storage table 14a, and extracts the extracted “double lock unlocking measure”. ”Is output to the door ECU 20 and the countermeasure is executed. As described above, by executing the “double lock unlocking measure”, it is possible to prevent the passenger waiting in the vehicle from being trapped.

  The situation specifying unit 15c recognizes that the person exists in the “outside vehicle area” or “outside the approach detection area” by the person area identification processing unit 15a, and the smart key 4 identifies the “inside vehicle area” by the smart key area identification processing unit 15b. If it is identified that the smart key 4 is misplaced in the vehicle, it is identified.

  In this way, by specifying that “the smart key 4 is misplaced in the vehicle”, it is possible to take measures to prevent the portable device from being misplaced in the vehicle. Further, in connection with this, it is possible to take measures to prevent a proper occupant of the vehicle from being returned to the vehicle due to forgetting to place the portable device in the vehicle.

  In this case, the response measure execution unit 15d selects “sound notification measure (if a person is present in the“ outside detection area ”) corresponding to the“ situation where the smart key 4 is left in the vehicle ”. And door locking prohibition measure "are extracted from the situation-response measure storage table 14a, and the extracted measure is executed.

  That is, output (send) voice guidance from the speaker 13 indicating that the “smart key 4 has been left in the car” (or mail if the person is “outside the approach detection area”). Thus, it is possible to notify that the smart key 4 is left in the vehicle.

  Furthermore, the execution instruction of “Door Lock Prohibition Measure” is output to the door ECU 20 and the corresponding measure is executed, so that it is possible to prevent a legitimate occupant of the vehicle from returning to the vehicle due to forgetting to place the portable device in the vehicle. It becomes possible.

  In addition, the situation specifying unit 15c is identified by the person area identification processing unit 15a that a person is present in the “outside vehicle area”, and the smart key area identification processing unit 15b is identified by the smart key 4 being present in the “outside vehicle area”. Then, it is specified as “a situation where the holder of the smart key 4 is present near the vehicle 2”.

  In this way, by specifying that “the holder of the smart key 4 is present in the vicinity of the vehicle 2”, a measure for prohibiting the operation of the in-vehicle device that only needs to be operated when riding is taken. It becomes possible.

  In this case, the response measure execution unit 15d extracts the “power control measure” corresponding to the “situation where the holder of the smart key 4 exists near the vehicle 2” from the status-response measure storage table 14a, An instruction to execute the extracted “power control measure” is output to the AV unit 70 to execute a measure for prohibiting the operation of the audio player or the DVD player. Thus, by executing the “power control measure”, it is possible to suppress wasteful consumption of battery power.

  In addition, the situation specifying unit 15c is continuously identified for a predetermined time when the person is present in the “outside the vehicle area” or “outside the approach detection area” by the person area identification processing unit 15a, and smart by the smart key area identification processing unit 15b. If the key is “outside the wireless communication area” and is continuously identified for a predetermined time, it is specified that “the vehicle 2 is parked”.

  Thus, by specifying that “the vehicle 2 is parked”, it is possible to take a theft prevention measure. Further, in connection with this, it is possible to take action prohibition measures for in-vehicle devices from the viewpoint of suppressing wasteful consumption of battery power.

  In this case, the response measure execution unit 15d extracts the “on-vehicle device operation prohibition measure and alarm set” corresponding to “the vehicle 2 is parked” from the situation-response measure storage table 14a, and executes the extracted response measures. To do.

  That is, it is possible to prevent the vehicle from being stolen by outputting the “alarm set” execution instruction to the anti-theft ECU 50 and executing the countermeasure.

  Furthermore, an execution instruction of “in-vehicle device operation prohibition measure” is output to the AV unit 70 to execute a measure for prohibiting the operation of the audio player or the DVD player. As described above, by executing the “in-vehicle device operation prohibition measure”, it is possible to suppress wasteful consumption of battery power.

  In addition, when the situation specifying unit 15c specifies that “the vehicle 2 is parked”, the person area identification processing unit 15a identifies that a person exists in the “in-vehicle area”, and the smart key area identification processing unit 15b If it is identified that the smart key 4 exists in “outside the wireless area”, it is specified that “the vehicle 2 is invaded by a third party”. In this way, by specifying that “the vehicle 2 is invaded by a third party”, it is possible to take an alarming measure and a threatening measure against the third party's theft.

  In this case, the response measure execution unit 15d extracts the “alarm measure and threat measure” corresponding to the “situation where the vehicle 2 has been invaded by a third party” from the status-response measure storage table 14a, and the extracted response measure. Are executed respectively.

  In other words, by outputting the “alarm measure” execution measure to the anti-theft ECU 50 and performing the alarm control, it is possible to notify the third party of the theft of a third party, and the “intimidate measure” execution measure is suspended. By outputting to the ECU 60 and causing the vehicle 2 to vibrate, a third party can be threatened.

(Processing procedures)
Next, a processing procedure of the keyless entry device according to the first embodiment will be described. 4, 5, 6, and 7 are flowcharts illustrating the processing procedure of the keyless entry device according to the first embodiment. This process is started when the shift range is set to “parking”.

  As shown in FIG. 4, first, the person area identification processing unit 15a identifies an area where a person exists (step S401). At this time, if a person is present in the “in-vehicle area” (Yes in Step S402 and Yes in Step S403), the smart key area identification processing unit 15b identifies the area where the smart key exists (Step S404).

  Subsequently, when the smart key 4 is present in the “in-vehicle area” (Yes in Step S405 and Yes in Step S406), the situation specifying unit 15c determines whether the vehicle 2 or the person 3 is facing the “occupant of the vehicle 2”. Is “on boarding” (step S407).

  Then, the response measure execution unit 15d outputs an instruction to execute the unlocking prohibition measure by “outside handle operation” to the door ECU 20 to execute the response measure (step S408), and then “passenger waiting counter” and “parking” "Counter" is cleared (step S409), and the process is started again from step S401.

  When the smart key 4 is present in the “outside vehicle area” (Yes in step S405 and negative in step S406), the situation specifying unit 15c determines that the smart key 4 is outside the vehicle. It is specified that the situation has been left behind (step S410).

  Then, the response measure execution unit 15d responds to “situation where the smart key 4 is left outside the vehicle” “sound notification measure, engine stop / start prohibition measure, shift knob fixing measure, deadlock prohibition measure, alarm set release / After each of the “prohibition measures or a combination thereof” is executed (step S411), the “passenger waiting counter” and the “parking counter” are cleared (step S409), and the processing is started again from step S401.

  On the other hand, when the smart key 4 exists in “outside the wireless communication area” (No in step S405), if the “passenger standby counter” is not linked to the time stamp (No in step S412), the situation specifying unit 15c The “passenger standby counter” is controlled to be linked with the time stamp (step S413).

  Then, when the “passenger standby counter” has passed the predetermined time (Yes at step S414), the response measure execution unit 15d outputs an instruction to execute “double lock unlocking measure” to the door ECU 20 to respond to the response measure. Is executed (step S415), the “passenger standby counter” is cleared, and the process is started again from step S401.

  Here, when a person is present in the “in-vehicle area” (Yes in step S402 and negative in step S403), as shown in FIG. 5, the smart key area identification processing unit 15b identifies the area where the smart key exists. (Step S501).

  When the smart key 4 is present in the “in-vehicle area” (Yes in step S502 and positive in step S503), the situation specifying unit 15c determines that the situation that the vehicle 2 or the person 3 is facing is “the smart key 4 is in the car”. It is specified that the situation has been left behind (step S504).

  Subsequently, the response measure execution unit 15d executes “voice notification measure and door locking prohibition measure” (step S505), then clears “passenger standby counter” and “parking counter” (step S506), and again. The process starts from step S401 described above.

  Further, when the smart key 4 is present in the “outside area” (Yes in Step S502 and No in Step S503), the situation specifying unit 15c determines the situation that the vehicle 2 or the person 3 is facing as “the owner of the smart key 4”. "Is a situation in the vicinity of the vehicle 2" (step S507).

  Subsequently, the response measure execution unit 15d outputs an instruction to execute the “power control measure” to the AV unit 70 and executes a measure for prohibiting the operation of the audio player or the DVD player (step S508). “Counter” and “parking counter” are cleared (step S506), and the process is started again from step S401.

  On the other hand, if the smart key 4 is “outside the wireless communication area” (No at Step S502) and the “parking counter” is not linked to the time stamp (No at Step S509), the situation specifying unit 15c The “counter” is controlled to be linked with the time stamp (step S510), and if the “parking counter” has not passed the predetermined time (step S511), the process is started again from step S401.

  Here, as shown in FIG. 6, the person is present “outside the approach detection area” (No in step S401), and is linked to the time stamp of one of the counters (Yes in step S601). If the predetermined counter has not passed the predetermined time (No at Step S602), the processing is started again from Step S401.

  If a person is present “outside the approach detection area” (No at Step S401) and the time stamps are not linked to any counter (No at Step S601), the “parking counter” is linked to the time stamp. (Step S603), and the process starts again from step S401.

  On the other hand, a person is present "outside the approach detection area" (No in step S401), one of the counters is linked with the time stamp (Yes in step S601), and one of the counters has passed a predetermined time. If it is present (Yes at step S602), the smart key area identification processing unit 15b identifies the area where the smart key exists (step S604).

  If the smart key 4 is present in the “in-car area” (Yes in step S605 and yes in step S606), the situation specifying unit 15c determines that the smart key 4 is in the car. It is specified that “the situation has been left behind” (step S607).

  Subsequently, the response measure execution unit 15d executes “email notification measure and door locking prohibition measure” (step S608), then clears the “passenger standby counter” and the “parking counter” (step S609), and again. The process starts from step S401 described above.

  Further, when the smart key 4 is present in the “outside vehicle area” (Yes in step S605 and negative in step S606), the situation specifying unit 15c determines the situation that the vehicle 2 or the person 3 is facing as “the smart key 4 is outside the vehicle”. It is specified that the situation has been left behind (step S610).

  Subsequently, the response measure execution unit 15d executes “mail notification measure, engine stop / start prohibition measure, shift knob fixing measure, deadlock prohibition measure, alarm set release / prohibition measure, or a combination thereof”, respectively. (Step S611), the “passenger waiting counter” and the “parking counter” are cleared (Step S609), and the process is started again from Step S401.

  On the other hand, if the smart key 4 exists “outside the wireless communication area” (No at Step S605) and the counter that has passed the predetermined time is the “passenger waiting counter” (No at Step S612), the countermeasure execution unit 15d Then, after executing the “double lock unlocking measure” execution instruction to the door ECU 20 and executing the corresponding measure (step S415), the “passenger standby counter” is cleared, and the process is started again from the above step S401. .

  Here, when the “parking counter” has passed the predetermined time (Yes in Step S511 or Yes in Step S612), the situation specifying unit 15c determines that the situation that the vehicle 2 or the person 3 is facing is “the vehicle 2 is parked”. (Step S701), the countermeasure measure execution unit 15d executes “vehicle device operation prohibition measure and alarm set”, respectively (step S702).

  At this time, when the person is present in the “inside area” and the smart key 4 is present “outside the wireless communication area” (Yes in Step S703 and Yes in Step S704), the situation specifying unit 15c determines that the vehicle 2 or the person 3 (Step S705), the response measure execution unit 15d executes “alarm measure and intimidation measure” (step S705). In step S706), the process returns to step S703 to perform the process.

  When a person is present in the “in-car area” (step S703) and the smart key 4 is present in the “wireless communication area” (No in step S704), the “passenger waiting counter” and “parking counter” Is cleared (step S707), and the process is started again from step S401.

  On the other hand, when the person is present in the “outside area” and the smart key 4 is present in the “wireless communication area” (No in step S703, positive in step S708 and negative in step S709), the “passenger standby counter” and The “parking counter” is cleared (step S710), and the process starts again from step S401.

  As described above, according to the keyless entry device 10 according to the first embodiment, it is identified from the approach detection level of the person to the vehicle whether the person exists in the in-vehicle area, the out-of-vehicle area, or the out-of-access detection area. Identifies whether the portable device is located in the vehicle area, outside the vehicle area, or outside the wireless communication area from the radio field intensity of the wireless communication processing, and the area information identified as the presence of a person and the presence of the portable device Since the situation that the vehicle or the person is facing is specified based on the area information, the information obtained from the proximity sensor that detects the approach of the person and the wireless device that performs wireless communication with the portable device is usefully utilized. Can be effectively linked with other devices mounted on the vehicle.

  Furthermore, according to the keyless entry device 10 according to the first embodiment, the area information identified as the presence of a person and the area information identified as the presence of the portable device are monitored in time series to face the vehicle or the person. Therefore, the situation can be specified in more detail and accurately, and it becomes possible to more effectively cooperate with other devices mounted on the vehicle.

  Although the embodiments of the present invention have been described so far, the present invention can be implemented in various different embodiments in addition to the above-described first embodiment within the scope of the technical idea described in the claims. It may be.

  For example, in the first embodiment, when the situation specifying unit 15c specifies that “the occupant of the vehicle 2 is on board”, the unlocking prohibition measure by “outside handle operation” is performed. The invention is not limited to this, and the opening by the “outside handle operation” is performed only when the vehicle 2 is locked before being identified as “the occupant of the vehicle 2 is on board”. You may make it take a lock prohibition measure.

  Further, in the present invention, when the situation specifying unit 15c specifies that “the holder of the smart key 4 exists near the vehicle 2” or “the vehicle 2 is parked” If the window is forgotten to be detected, it may be closed.

  In addition, among the processes described in this embodiment, all or part of the processes described as being performed automatically can be performed manually, or the processes described as being performed manually can be performed. All or a part can be automatically performed by a known method. In addition, the processing procedure, control procedure, specific name, and information including various data and parameters shown in the above-mentioned document and drawings can be arbitrarily changed unless otherwise specified.

  Further, each component of each illustrated apparatus is functionally conceptual, and does not necessarily need to be physically configured as illustrated. In other words, the specific form of distribution / integration of each device is not limited to that shown in the figure, and all or a part thereof may be functionally or physically distributed or arbitrarily distributed in arbitrary units according to various loads or usage conditions. Can be integrated and configured. Further, all or any part of each processing function performed in each device may be realized by a CPU and a program analyzed and executed by the CPU, or may be realized as hardware by wired logic.

It is a conceptual diagram explaining the outline | summary and the characteristic of the keyless entry apparatus based on this invention. 1 is a block diagram illustrating a configuration of a keyless entry device according to a first embodiment. It is a figure which shows the structural example of the information memorize | stored in a condition-response measures storage table. 3 is a flowchart illustrating a processing procedure of the keyless entry device according to the first embodiment. 3 is a flowchart illustrating a processing procedure of the keyless entry device according to the first embodiment. 3 is a flowchart illustrating a processing procedure of the keyless entry device according to the first embodiment. 3 is a flowchart illustrating a processing procedure of the keyless entry device according to the first embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Keyless entry system 2 Vehicle 3 Person 4 Smart key 10 Keyless entry apparatus 11 Proximity sensor 12 Wireless communication processing part 13 Speaker 14 Memory | storage part 14a Situation-response measure storage table 15 Control part 15a Person area identification process part 15b Smart key area identification process Part 15c Situation specifying part 15d Countermeasure executing part 20 Door ECU
30 Engine ECU
40 shift ECU
50 Anti-theft ECU
60 Suspension ECU
70 AV units

Claims (10)

A keyless entry device that performs wireless communication processing with a portable device that holds unique authentication information and authentication processing based on the approach detection level of a person to the vehicle
Wireless communication processing means for performing the wireless communication processing as a wireless communication area capable of communicating with the portable device in the vicinity outside the vehicle and in the vehicle;
An approach detection means disposed in a central portion of the vehicle and having an approach detection area wider than the wireless communication area;
A keyless entry device comprising: The wireless communication area and the approach detection area have a wireless communication area or an approach detection area present in the vehicle, and an outside area that is a wireless communication area or an approach detection area present outside the vehicle,
A person area identifying means for identifying whether the person exists in the in-car area, the out-of-vehicle area or the out-of-access detection area from the approach detection level of the person to the vehicle detected by the approach detection means;
Portable device area identifying means for identifying whether the portable device is present in the vehicle area, the vehicle outside area or the wireless communication area from the radio wave intensity of the wireless communication processing by the wireless communication processing device;
Identifies the situation facing the vehicle or the person based on the area information identified by the person area identifying means that the person is identified and the area information identified by the portable device area identifying means that the portable device is present The keyless entry device according to claim 1, further comprising a situation specifying unit that performs the operation.   The situation specifying means is identified if the person area identifying means identifies that the person is outside the in-vehicle area or the proximity detection area, and the portable device area identifying means identifies that the portable device is present in the outside area. The keyless entry device according to claim 2, wherein the portable device is identified as being in a situation where the portable device has been left outside the vehicle.   The situation specifying means is identified if the person area identifying means identifies that the person is outside the vehicle outside area or the proximity detection area, and the portable device area identifying means identifies that the portable device is present in the vehicle interior area. The keyless entry device according to claim 2 or 3, wherein the portable device is specified as being in a situation where the portable device is left in the vehicle.   If the person identifying means identifies that a person is present in the in-vehicle area and the portable device area identifying means identifies that the portable device is present in the in-vehicle area, the situation specifying means The keyless entry device according to claim 2, 3 or 4, wherein the keyless entry device is specified as being inside.   If the person identifying unit identifies that the person is present in the outside area of the vehicle and the portable unit area identifying unit identifies that the portable unit is present in the outside area of the vehicle, The keyless entry device according to any one of claims 2 to 5, wherein the keyless entry device is specified as being in the vicinity of the vehicle.   The situation specifying unit monitors the area information identified as the presence of a person by the person area identification unit and the area information identified as the presence of a portable device by the portable unit area identification unit in time series, The keyless entry device according to any one of claims 2 to 6, wherein a situation that the vehicle or the person is facing is specified.   The situation specifying means continuously identifies a person for a predetermined time if the person exists outside the vehicle area or the proximity detection area by the person area identifying means, and the portable device exists outside the wireless communication area by the portable device area identifying means. The keyless entry device according to claim 7, wherein if the vehicle is continuously identified for a predetermined time, the vehicle is specified as being parked.   When the situation specifying means specifies that the vehicle is parked, the person area identifying means identifies that a person is present in the in-car area, and the portable device area identifying means identifies the portable device outside the wireless area. 9. The keyless entry device according to claim 8, wherein if it is identified that the vehicle is present, the vehicle is identified as having entered a third party.   The situation specifying means is identified at least once within a predetermined time when a person is present in the vehicle area by the person area identifying means, and is continued for a predetermined time when the portable device is outside the wireless communication area by the portable device area identifying means. The keyless entry device according to claim 7, wherein the passenger is identified as waiting in the vehicle.

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