JP2008127894A - Equipment and method for processing radio communication data - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide equipment and a method for processing radio communication data, which can dispense with a data transmission reoperation in the establishment of first radio communication, even on the occurrence of an error during the communication, when communication data transmitted from a transmitter subjected to a data transmission operation are received via the first radio communication. <P>SOLUTION: A vehicle door is locked/unlocked via wireless communication by means of an electric key. In this case, even if data determination, for example, for an ID code 23 and a rolling code 24 is not established via the wireless communication, smart communication is performed between the electronic key and a vehicle after that. In the establishment of the smart communication, the data determination for the ID code 23 and the rolling code 24 is assumed to be established, so that the door can be locked or unlocked. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a wireless communication data processing apparatus and a wireless communication data processing method for receiving communication data transmitted from a transmitter that has been subjected to data transmission and performing data processing.

  2. Description of the Related Art Conventionally, many vehicles are equipped with a wireless key system that transmits a locking request or an unlocking request from a wireless key by a wireless key switch operation and performs a locking / unlocking operation of a vehicle door by wireless communication. An example of a wireless key system is disclosed in, for example, Patent Document 1 and the like. If the vehicle is equipped with a wireless key system, the actual key operation of inserting and turning the mechanical key into the keyhole of the vehicle door is unnecessary when locking and unlocking the vehicle door, and the convenience of the door locking and unlocking operation is enhanced. .

  In this type of wireless key system, when the lock button or unlock button of the wireless key is operated once, a plurality of frames 82 having the same data contents as a lock / unlock request signal 81 are sent from the wireless key as shown in FIG. (FIG. 5 shows three frames, the first frame 82a to the third frame 82c). When the lock button is operated, a lock request signal is transmitted as the lock / unlock request signal 81, and when the unlock button is operated, an unlock request signal is transmitted as the lock / unlock request signal 81. As described above, a plurality of frames 82a, 82b,... Are transmitted by a single switch operation. The vehicle on the receiving side of the locking / unlocking request stands up at a certain interval and receives a signal from the wireless key. Since the rise interval is longer than the time required to receive one frame of data, if a lock / unlock request is sent from the wireless key at the time of startup fall, the vehicle will lock / unlock if the lock / unlock request is only one frame. This is because the request cannot be received correctly, and therefore it is difficult to generate a communication error when the lock / unlock request is transmitted from the wireless key to the vehicle by transmitting three frames of the lock / unlock request.

  Each of these frames 82a, 82b... Is composed of a frame start bit, an ID code, a rolling code, and a function code as shown in FIG. The frame start bit is a data string indicating the start of a frame located at the head of the data, and the ID code is a data string unique to each key possessed by the wireless key. The rolling code is a data string that changes each time the lock button or unlock button of the wireless key is operated once, and the function code is a data string that indicates whether the frame is locked or unlocked. .

Then, the vehicle that has received the lock / unlock request signal 81 from the wireless key reads the data string in the frames 82a, 82b... And authenticates the ID code and rolling code with the code string registered on the vehicle side. As a result, data verification is performed to determine whether or not the lock / unlock request signal 81 acquired from the wireless key is correct. At this time, on the condition that all the codes are data OK in the same frame, that is, the vehicle confirms that all the codes are correct in any one of the frames 82a, 82b... As shown in FIG. The wireless communication is established assuming that the data verification is established in the condition, and processing based on the function code included in the locking / unlock request signal 81 received at that time is performed.
Japanese Patent Laid-Open No. 10-299312

  By the way, when performing wireless communication with the vehicle by operating the locking / unlocking button of the wireless key, for example, two codes are established in one frame 82 of the locking / unlocking request signal 81 due to a temporary disturbance, for example. It is possible that one code does not hold. In this way, when wireless communication results in a communication error, in order to lock and unlock the vehicle door, the lock button and unlock button of the wireless key must be operated again, and this button re-operation is troublesome. was there.

  The object of the present invention is to establish the first wireless communication even if an error occurs in the communication at the time when the communication data transmitted from the transmitter on which the data transmission operation is performed is received via the first wireless communication. An object of the present invention is to provide a wireless communication data processing apparatus and a wireless communication data processing method that can eliminate the need for re-operation of data transmission operation.

  In order to solve the above problem, in the present invention, when a data transmission operation is performed by a transmitter, communication data including a plurality of frames transmitted from the transmitter via the first wireless communication is received by a receiving unit. When received, wireless communication is performed by performing data collation by determining whether or not a plurality of unit data included in each of the plurality of frames is authentic with itself, and determining whether or not communication of the first wireless communication is established In the data processing apparatus, when the data collation is performed in the first wireless communication, when some of the unit data satisfy the data determination in the same frame and others fail, the apparatus of the apparatus A second wireless communication of a system different from the first wireless communication is performed between the setting unit that sets the operation state to a communication establishment preparation state that temporarily waits for the establishment of the data verification and the transmitter. Communication means and automatic determination by the second wireless communication of the determination failure data that is not determined in the first wireless communication, and the replacement is performed under the condition that the device operating state is set to the communication ready state. The gist of the present invention is that the apparatus includes: a determination unit that regards the data determination of the determination failure data as being satisfied if the determination is satisfied, and regards the data collation at the time of the first wireless communication as the collation establishment.

  According to this configuration, when communication data is transmitted from the transmitter when the data transmission operation is performed by the transmitter, when the communication data is received through the first wireless communication, each frame included in each frame of the communication data Data verification is performed by performing data determination on each unit data. If data determination is established for all unit data in the same frame at the time of this data verification, it is determined that data verification is established, and the first wireless communication is established, and according to the communication data received from the transmitter at that time Implement various processes.

  During the first wireless communication, if some of the unit data within the same frame are determined to be valid, but the others are not established, the setting means temporarily indicates the device operating state of the device itself and establishes data verification temporarily. Set the communication ready state to wait. At this time, in the second wireless communication that is automatically performed regardless of the operator's intention, the determination unit performs a replacement determination of the determination failure data that has not been determined in the first wireless communication, and this replacement is performed in the communication ready state. If the determination is satisfied, the data determination of the determination failure data is regarded as being satisfied, and the data verification at the time of the first wireless communication is considered as verification verification.

  Therefore, even if the first wireless communication when the data transmission operation is performed by the transmitter is not established at that time, when the device operating state is in the communication establishment preparation state, the first wireless communication is different from the first wireless communication. If the alternative determination is established for the determination failure data at the time of the first wireless communication in the two wireless communication, it is considered that the data verification at the time of the first wireless communication has been established, and the data of the communication data obtained at the time of the first communication Various processes according to the contents are performed. Therefore, when the data transmission operation is performed by the transmitter, even if the first wireless communication is not established, if the second wireless communication is established, it is considered that the first wireless communication is established. Therefore, the data transmission operation is performed again. There is no need, and convenience is improved.

The gist of the present invention is that it comprises notification control means for notifying the operator by the notification means when the setting means sets the device operating state to the communication establishment ready state.
According to this configuration, when the setting unit sets the device operation state to the communication establishment preparation state, the notification unit notifies the fact, so that the transmitter operator indicates that the device operation state has entered the communication establishment preparation state. Can be notified. As a result, the transmitter operator can know whether or not the device is in a communication establishment preparation state, and the functionality as the device is enhanced.

  In the present invention, when the device operating state is set to the communication establishment ready state, the time measuring means for measuring the elapsed time, and if the time measured by the time measuring means is within the set time, the communication establishment ready state is maintained. Then, the gist is provided with execution means for terminating the communication establishment preparation state when the measured time exceeds the set time.

  According to this configuration, even if the device operating state enters the communication establishment preparation state, the communication establishment preparation state is forcibly terminated if the set time has passed. Therefore, it becomes difficult for the alternative determination using the second wireless communication to be established at a timing not intended by the transmitter operator, and the apparatus operation to be started when the first wireless communication is established. Highly effective in improving device functionality.

  In the present invention, the setting means sets the device operating state to the communication establishment ready state when the data determination of the authentication data in the frame is not established in the first wireless communication, and the determination Means is that the authentication system verification is performed in the second wireless communication as the alternative determination, and if the authentication system determination is established, the authentication system determination that is not established in the first wireless communication is regarded as established. To do.

  According to this configuration, when the data determination of the authentication data is not established in the first wireless communication, the authentication system verification performed in the second wireless communication is used as an alternative determination for the data determination. Even if the verification is regarded as being established, the same authentication system determination is performed in the second wireless communication, and the situation where the verification level is not significantly lowered does not occur.

  In the present invention, the setting means recognizes the command content of the communication data by reading the functional data in the frame, and when the unit data included in the frame other than that does not satisfy the data determination, the apparatus operates. The state is set to the communication establishment preparation state, and the determination means determines that if the data determination is established in the alternative determination in the second wireless communication for the unit data that has not been determined in the first wireless communication Thus, it is considered that the data determination of the unit data is regarded as established, the data verification of the first wireless communication is regarded as established, and the processing based on the functional data is operated.

  According to this configuration, the communication data transmitted from the transmitter to the device in the first wireless communication includes the functional data indicating the command content indicating what the communication data is. Even if data verification is not established in communication, if the functional data in the data can be read, it is possible to recognize what kind of communication data should have been received at that time. Become.

  In the present invention, the first wireless communication includes, from the electronic key as the transmitter that activates the device by remote operation with key operation, functional data corresponding to the key operation at that time included in the frame. The second wireless communication is the same as the operation performed by the device when the electronic key transmits the communication data having the functional data in the first wireless communication. The gist of the present invention is that the operation is permitted by the establishment of its own wireless communication and the processing is performed under the condition that the operation system on the device side is operated under the communication establishment condition.

  According to this configuration, when operating the device with the electronic key, when the operation button is operated with the electronic key, the communication data including the functional data corresponding to the button operation in the frame is transmitted from the electronic key to the first radio. It is transmitted to the apparatus via communication. At this time, part of the unit data is established in the first wireless communication, and incomplete data that is not established in the first wireless communication in the second wireless communication of another system automatically performed with the electronic key. If the alternative determination is established, it is considered that the data verification of the first wireless communication is established, and even if there is no operation of the operation system on the device side by the operator, which is the device operating condition at the time of the second wireless communication, A process based on the functional data obtained during the first wireless communication is executed with the establishment of the data verification of the second wireless communication. Therefore, when the first wireless communication performed when the electronic key is operated is not established, the second wireless communication is automatically performed between the electronic key and the device without re-operating the electronic key. Since it is considered that the first wireless communication has been established on the condition that the alternative determination by the is established, the apparatus operates in a process according to the functional system code included in the communication data transmitted by the electronic key during the first wireless communication. Thus, it is possible to save the trouble of re-operating the electronic key when operating the apparatus.

  In the present invention, when the setting means receives a door locking / unlocking request by the first wireless communication from the electronic key that locks and unlocks the door by remote operation with key operation, the setting means is included in the frame in the door locking / unlocking request The function system data is read to recognize whether the key operation at that time is locked or unlocked, and when the authentication system data included in the frame is not data, the device operating state is changed. In addition to setting to the communication establishment preparation state, the determination means, if the authentication system verification performed in the second wireless communication is established, the determination means data for the authentication system data that was not established in the first wireless communication The first wireless communication is regarded as the data verification establishment as the determination is established, and the locking / unlocking operation based on the functional data is performed on the device without the operator operating the operation system on the device side. And summarized in that cause I.

  According to this configuration, the wireless communication data processing device described in this configuration is employed in the door locking / unlocking mechanism, and when the door locking / unlocking button of the electronic key (door locking / unlocking key) is operated, A lock / unlock request is transmitted from the key via the first wireless communication. At this time, a part of the unit data is determined to be data determination in the first wireless communication, and the data determination is not satisfied in the first wireless communication in the second wireless communication of another system automatically performed with the electronic key. If the data determination of the unsuccessful data is established, it is considered that the data verification of the first wireless communication has been established, and the second wireless communication only permits the locking and unlocking when the data verification is established. 2 Door locking / unlocking is performed with the data verification of wireless communication. For this reason, when the first wireless communication performed when the electronic key is locked / unlocked is not established, the door is determined on the condition that the substitute determination is established by the second wireless communication without re-operating the lock / unlock button of the electronic key. Therefore, it is possible to save the trouble of re-operating the electronic key when locking and unlocking the door.

  In the present invention, in the second wireless communication, a request is periodically transmitted from the communication means independently of the first wireless communication, and second communication data returned by the transmitter in response to the request is transmitted as the second wireless data. The gist of the present invention is wireless communication that is received by a communication means and performs data collation of the second communication data to check whether data collation is established or not, and data judgment performed at the time of data collation is used as the alternative judgment.

  According to this configuration, since the second wireless communication is a wireless communication that always attempts to establish communication independently of the first wireless communication, the data determination of the second wireless communication can be used for the alternative determination of the first wireless communication. For example, it is not necessary to perform a complicated process of starting the second wireless communication when the data verification of the first wireless communication is not established.

  In the present invention, when a data transmission operation is performed by a transmitter, when communication data composed of a plurality of frames transmitted from the transmitter via the first wireless communication is received by the receiving means, each of the plurality of frames is included. In the wireless communication data processing method for determining whether or not communication of the first wireless communication can be established by performing data collation by determining whether or not the plurality of unit data are legitimate with itself, When the data collation is performed by communication, when some of the unit data satisfy the data determination in the same frame and others fail, the device operating state of the device is determined as the data collation establishment. Is set in a communication establishment preparation state for temporarily waiting, and the alternative determination of the determination failure data that has not been determined in the first wireless communication is determined by a second wireless communication system different from the first wireless communication. If the alternative determination is established under the condition that the device operating state is set to the communication establishment preparation state, the data determination of the determination failure data is considered to be established, The gist is that the data verification at the time of the first wireless communication is regarded as verification verification.

  According to the present invention, when communication data transmitted from a transmitter that has performed a data transmission operation is received via the first wireless communication, even if an error occurs in the communication at this time, the first wireless communication is established. In this case, it is possible to eliminate the need for re-operation of the data transmission operation.

(First embodiment)
A first embodiment of a wireless communication data processing apparatus and a wireless communication data processing method embodying the present invention will be described below with reference to FIGS.

  As shown in FIG. 1, an electronic key system 4 that locks and unlocks a door of a vehicle door 3 (see FIG. 2) by remote control using wireless communication using an electronic key 2 is mounted on the vehicle 1. The electronic key system 4 of this example has a remote control function for transmitting and receiving a lock / unlock request signal Swir from the electronic key 2 by operating the button of the electronic key 2 and a request signal Sreq as an ID reply request from the vehicle 1. Upon receipt, the electronic key 2 automatically transmits a key ID signal Sid, and is provided with both functions of a hands-free function in which door locking / unlocking is permitted on condition that ID collation is established at this time. The electronic key 2 corresponds to a transmitter (door lock / unlock key), and the electronic key system 4 corresponds to a device. Further, the locking / unlocking request signal Swir corresponds to communication data, the request signal Sreq corresponds to a request, and the key ID signal Sid corresponds to second communication data.

  The electronic key 2 is provided with a communication control unit 5 as a communication control unit on the key side. The communication control unit 5 includes, as operation buttons for the remote control function, a push-type lock button 6 that is operated when the vehicle door 3 is locked, and a push-type unlock button that is operated when the vehicle door 3 is unlocked. A lock button 7 is connected. The communication control unit 5 also modulates various signals such as an LF reception circuit 8 that amplifies and demodulates a reception signal in the LF band and sends it to the communication control unit 5, and a lock / unlock request signal Swir and a key ID signal Sid. Then, an RF transmission circuit 9 that transmits an RF band signal is connected.

  The vehicle 1 is provided with a verification ECU 10 as a control unit for the verification system. In the verification ECU 10, an out-of-vehicle LF transmitter 11 capable of transmitting various signals such as an LF band request signal Sreq to the outside of the vehicle takes, for example, an arrangement position embedded in the out-of-vehicle door handle 12 (see FIG. 2) of the vehicle door 3. Connected. An RF receiver 13 capable of receiving various signals in the RF band is connected to the verification ECU 10 at an arrangement position built in, for example, a rearview mirror in a vehicle. The verification ECU 10 includes a door lock button 14 disposed on the exterior door handle 12 as an operation part when performing a locking operation on the vehicle 1 side, and a touch sensor 15 that detects that the operator has touched the exterior door handle 12. And are connected. The verification ECU 10 constitutes setting means, determination means, notification control means, timing means, and execution means, the outside LF transmitter 11 constitutes communication means, and the RF receiver 13 constitutes reception means and communication means. Further, the door lock button 14 and the touch sensor 15 correspond to an operation system.

  A door ECU 16 as a door lock control system control unit is connected to the verification ECU 10 via an in-vehicle LAN 17 having high data communication speed and high data interception resistance. The door ECU 16 is connected to a door lock motor 18 that serves as a drive source when the door lock is locked and unlocked. In addition, a lamp ECU 19 is connected to the verification ECU 10 via an in-vehicle LAN 17 as a control unit of a lighting control system for various types of lamps in the vehicle. The lamp ECU 19 is connected to a display lamp 20 that functions as a blinker lamp or a hazard lamp, and performs blinking control of the display lamp 20. The display lamp 20 corresponds to a notification unit.

  When the door lock is locked and unlocked by the remote control function of the electronic key 2, the lock button 6 and the unlock button 7 of the electronic key 2 are operated by the key holder. At this time, when the communication control unit 5 detects that the lock button 6 or the unlock button 7 has been operated, the communication control unit 5 transmits a lock / unlock request signal Swir from the RF transmission circuit 9 to the vehicle 1. That is, when the lock button 6 is operated, a lock request signal Swir1 requesting the lock of the door lock is transmitted from the electronic key 2, and when the unlock button 7 is operated, the door lock is unlocked. An unlock request signal Swir2 is transmitted from the electronic key 2.

  When transmitting the locking / unlocking request signal to the vehicle 1, the communication control unit 5 transmits a locking / unlocking request signal Swir in which one frame 21 includes a plurality of codes as shown in FIG. The unlocking / unlocking request signal Swir of this example is composed of three frames of the first frame 21a, the second frame 21b, and the third frame 21c. The reason why the frame 21 is composed of a plurality is described in the background art. I do not explain.

  Each of the frames 21a, 21b,... Includes a frame start bit 22, an ID code 23, a rolling code 24, and a function code 25, as in the example described in the background art. The frame start bit 22 and the codes 23 to 25 are data strings having the same contents in each of the frames 21a to 21c, and are composed of a combination of binary information “0” and “1”. The frame start bit 22 is a data string indicating the start of the frame located at the data head position of each frame 21, the ID code 23 is a key-specific data string that the electronic key 2 has individually, and the rolling code 24 is The data string changes every time the lock button 6 or the unlock button 7 of the electronic key 2 is operated once. The function code 25 is a data string indicating whether the lock / unlock request signal Swir at that time is a lock request or an unlock request. If the lock / unlock request signal Swir is the lock request signal Swir1, this is a lock request notification. When the unlocking request signal Swir is the unlocking request signal Swir2, this forms an unlocking request notification. The ID code 23 and the rolling code 24 constitute unit data (authentication data), and the function code 25 constitutes unit data (functional data).

  When the verification ECU 10 receives the lock / unlock request signal Swir via the RF receiver 13, the verification ECU 10 authenticates whether the ID code 23 and the rolling code 24 in the frames 21a, 21b... Then, the function code 25 is read to determine whether or not it can be accurately decoded, and data verification is performed. At this time, the collation ECU 10 determines that all the codes 23 to 25 are determined to be normal in the same frame 21 and the data determination is established, that is, all of the frames 21a to 21c are in any one of the frames. It is assumed that data verification has been established on the condition that the above code is correct. If this data verification is established, wireless communication (first wireless communication) is established.

  When the verification ECU 10 receives the locking request signal Swir1 as the locking / unlocking request signal Swir, if the data verification is established by the locking request signal Swir1, the verification ECU 10 outputs a locking permission to the door ECU 16 and outputs the unlocking request signal Swir as the unlocking request signal Swir. When the signal Swir2 is received and the data verification is established by the unlock request signal Swir2, the unlock permission is output to the door ECU 16. When the door ECU 16 receives the locking permission from the verification ECU 10, the door ECU 16 drives the door lock motor 18 in the normal direction to lock the door lock. On the other hand, when the door ECU 16 receives the unlocking permission from the verification ECU 10, the door ECU 16 drives the door lock motor 18 in the reverse direction. Then, the door lock is unlocked, and after the unlocking operation, it is sequentially recognized whether the door lock is locked or unlocked by various switches or the like.

  In addition, when the vehicle 1 is parked (when the engine is stopped and the door is locked), the verification ECU 10 transmits a request signal Sreq for the LF band as an ID reply request from the outside LF transmitter 11 (smart communication outside the vehicle: 2nd wireless communication) is performed, and a communication area E is formed outside the vehicle as shown in FIG. Here, when there are a plurality of out-of-vehicle LF transmitters 11, these send out the request signal Sreq one by one in order and repeat this transmission operation. When the electronic key 2 enters the vehicle outside communication area E, the electronic key 2 receives the request signal Sreq via the LF receiving circuit 8, and when it recognizes that the LF signal is an ID reply request, it responds to the request. Then, an RF band key ID signal Sid is transmitted from the RF transmission circuit 9 as its own unique information.

  When the verification ECU 10 transmits the request signal Sreq from the external LF transmitter 11 and performs smart communication, when the RF receiver 13 receives the ACK signal Sack after transmitting the request signal Sreq, the ID code 23 on the key side is If a challenge response verification is established including the code registered in the vehicle code and the key code of the electronic key 2 matches the vehicle side, it is recognized that the ID verification (verification outside the vehicle) by smart communication has been established. When the verification ECU 10 recognizes that the ID verification is established, the verification ECU 10 activates the touch sensor 15 in a stopped state, and when the touch sensor 15 detects a touch operation of the outside door handle 12 by the operator, the door ECU 16 is permitted to unlock. Is output. Receiving the unlocking permission, the door ECU 16 drives the door lock motor 18 to release the locked door lock.

  On the other hand, when the verification ECU 10 detects the pressing operation of the door lock button 14 of the handle knob when the vehicle 1 is in the engine stopped state and the vehicle door 3 is in the unlocked state, the verification ECU 10 forms the outside communication area E in the outside LF transmitter 11 again. Then, ID verification by smart communication is performed, and if this ID verification is established, a lock request is output to the door ECU 16. The door ECU 16 that has received the lock permission drives the door lock motor 18 to lock the unlocked door lock. Note that the ID code 23 used in smart communication is the same as the ID code 23 used in wireless communication.

  In this example, when the verification ECU 10 performs locking / unlocking of the door lock by wireless communication of the electronic key 2, if a part of the code is established in one frame 21 of the locking / unlocking request signal Swir, the data determination NG at that time is determined. For the code, one of authentication, reading, etc. performed during smart communication is used as an alternative determination for the NG code, and if this alternative determination is established, the NG code is treated as being determined to be legitimate by wireless communication. Communication data processing control that considers that data verification during wireless communication has been established is performed. The verification ECU 10 performs this communication data processing control every time wireless communication is performed.

  When three codes of ID code 23, rolling code 24, and function code 25 are included in one frame 21 as in this example, if data determination of ID code 23 is not established during wireless communication, ID verification is used as an alternative determination, and when the data determination of the rolling code 24 is not established during wireless communication, challenge response authentication performed at the time of ID verification is used as an alternative determination. Further, if the data code of the function code 25 is not established during wireless communication, if the function code 25 is also subjected to substitution determination, the door ECU 16 confirms the door lock state at the time of the smart communication and confirms that. It is also possible to use the result as an alternative determination.

Next, the operation of the electronic key system 4 of this example will be described with reference to FIG.
For example, when unlocking the vehicle door lock, when the unlock button 7 of the electronic key 2 is operated by the key holder, the unlocking request signal Swir2 is transmitted from the electronic key 2 as a door lock unlocking request by wireless communication. Is done. When the unlocking request signal Swir2 is received by the RF receiver 13, the verification ECU 10 performs data verification as to whether or not the unlocking request signal Swir2 is a regular request corresponding to the vehicle 1. At this time, the verification ECU 10 performs a determination process to determine whether or not all the data determinations of the three codes 23 to 25 are established in one frame 21 among the three frames 21 a to 21 c. If all the data determinations of the two codes 23 to 25 are established, it is considered that the data verification of the unlock request signal Swir2 is established, and unlocking permission is output to the door ECU 16 to unlock the door lock.

  By the way, in some cases, noise is generated in communication due to, for example, disturbance during wireless communication, and all three codes 23 to 25 are not considered to be regular in any of the three frames 21a to 21c. Sometimes. In this case, the collation ECU 10 shifts to data processing that substitutes data determination that can be an alternative determination for NG data (determination failure data) during wireless communication by data verification of smart communication. It should be noted that the priority order of which of the three frames 21a to 21c is used preferentially is that the frame contents are not known unless the function code 25 can be read. In this example, it is assumed that the establishment of the data of the ID code 23 and the rolling code 24 is not related to the priority.

  For example, when the verification ECU 10 can read only the function code 25 but not all the frames 21a to 21c are regarded as normal in the same frame 21, the verification ECU 10 enters the unlock preparation state as a state of waiting for the doors to be unlocked. Enters and notifies the lamp ECU 19 to that effect. When the lamp ECU 19 obtains the unlock preparation state notification from the verification ECU 10, the lamp ECU 19 notifies the driver that the vehicle 1 has entered the unlock preparation state, for example, by blinking the display lamp 20 several times. The answer back when the vehicle 1 enters the unlock preparation state preferably has a different display form from the answer back when the vehicle door 3 enters the locked state or the unlocked state.

  The key holder who recognizes that the vehicle 1 has entered the unlock preparation state moves closer to the vehicle 1 to perform smart communication. At this time, when the electronic key 2 enters the outside communication area E formed around the vehicle 1 and the electronic key 2 receives the request signal Sreq (wake pattern) transmitted from the outside LF transmitter 11, the electronic key 2 is An ACK signal Sack is returned from the RF transmission circuit 9 toward the vehicle 1 as a signal reception completion notification. When the verification ECU 10 receives the ACK signal Sack from the electronic key 2 after transmitting the request signal Sreq, the verification ECU 10 recognizes that the electronic key 2 exists in the vehicle outside communication area E.

  The verification ECU 10 that recognizes that the electronic key 2 is present in the outside communication area E responds to this from the outside LF transmitter 11 with the vehicle code that is a unique code number of the vehicle 1 as the vehicle code signal Scd. Send back. Here, the reason why the vehicle code is transmitted from the vehicle 1 to the electronic key 2 is to identify the electronic key 2 of another vehicle in the outside-vehicle communication area E. When the electronic key 2 receives the vehicle code signal Scd by the LF receiving circuit 8, the electronic key 2 compares the received vehicle code with the vehicle code registered in itself, and if this code verification is established, the fact that the vehicle code verification is established. Is returned from the RF transmission circuit 9. When the verification ECU 10 receives the ACK signal Sack after transmitting the vehicle code signal Scd, the verification ECU 10 recognizes that the vehicle code verification has been established.

  Recognizing that the vehicle code verification has been established, the verification ECU 10 transmits an authentication request signal Spa including a challenge code used as a random number for authentication and a vehicle-side key code (4-bit signal) registered in itself to the LF. Call from machine 11. Here, the key code is transmitted from the vehicle 1 to the electronic key 2 when there is a sub key in addition to the master key in the out-of-vehicle communication area E, when these keys simultaneously return the key code to the vehicle 1. This is because interference may occur and smart communication may not be established.

  When the electronic key 2 receives the authentication request signal Spa, the electronic key 2 compares the key code received at this time with the key code registered in the electronic key 2 and checks whether the key should be returned to the vehicle 1 or not. Determine whether or not. At this time, with respect to the electronic key 2 for which ID verification is established, the operation shifts to the operation of returning the key code registered in itself. At this time, a special calculation is added to the challenge code included in the authentication request signal Spa. The key ID signal Sid including the key code and the response is transmitted to the vehicle 1 via the RF transmission circuit 9.

  When the verification ECU 10 acquires the key ID signal Sid transmitted from the electronic key 2 via the RF receiver 13, the verification ECU 10 compares the key code received from the electronic key 2 with the key code registered in the vehicle 1. I do. At this time, the verification ECU 10 also performs a process of adding a special calculation to the challenge code performed with the electronic key 2 in the same manner, and compares the calculated value with the response obtained from the electronic key 2 to determine the response. Perform verification. When receiving the key ID signal Sid, the verification ECU 10 performs ID verification and response verification in this way and recognizes the verification result.

  The verification ECU 10 uses ID verification (key code verification) at the time of smart communication as an alternative determination of the data determination of the ID code 23 of wireless communication when the operation state of the verification ECU 10 is in the unlock preparation state. Response verification at the time of smart communication is used as an alternative determination for data determination. Therefore, for example, as shown in FIG. 3, even if the ID code 23 and the function code 25 are determined to be legitimate by wireless communication but the data determination of the rolling code 24 is not established, the response verification is not performed. If it is established, it is considered that the data determination of the rolling code 24 is established, and it is considered that the data collation at the time of wireless communication is established. For this reason, it is determined that wireless communication has been established, and the vehicle door 3 is unlocked without performing an operation of touching the outside door handle 12 and causing the touch sensor 15 to detect it.

  In the example shown in FIG. 3, ID verification at the time of smart communication is not established. However, since ID code 23 is established at wireless communication, there is a problem even if ID verification is not established at the time of smart communication. There is no. Further, the verification ECU 10 measures the elapsed time T after entering the unlock preparation state by using its own counter or timer, and if the elapsed time T is within the set time Tx, the verification ECU 10 maintains the unlock preparation state. Waiting for the establishment of smart communication, when the elapsed time T exceeds the set time Tx, the unlock preparation state is terminated, and the unlocking operation is necessary for unlocking the door.

  Therefore, in this example, as in the example shown in FIG. 3 for example, even if the data determination of the wireless communication rolling code 24 is not established due to noise, if challenge response authentication is established in subsequent smart communication, this is used. A data processing format that regards the data determination of the rolling code 24 as being established is used. For this reason, the door lock in the locked state is automatically unlocked by the establishment of the pseudo wireless communication using the smart communication without performing the touch operation of the touch sensor 15 of the door handle 12 outside the vehicle. Accordingly, the door lock can be unlocked without re-operating the unlock button 7 of the electronic key 2, and convenience is improved.

According to the configuration of the present embodiment, the following effects can be obtained.
(1) When the unlocking button 7 is operated with the electronic key 2 to lock and unlock the vehicle door 3, the electronic key 2 can be used even if wireless communication between the electronic key 2 and the vehicle 1 at this time is not established. If smart communication is established between the vehicle 1 and the vehicle 1, it is considered that wireless communication has been established, and the locked vehicle door 3 is unlocked. Therefore, for example, even if noise is generated in wireless communication due to temporary disturbance and communication is not established, the vehicle door 3 is locked on the condition that smart communication is established. The trouble of re-operating the unlock button 7 of the electronic key 2 can be saved, and convenience is improved.

  (2) When the vehicle 1 enters the unlock preparation state, the operator is notified of this by an answer back such as turning on the display lamp 20 several times. Therefore, the vehicle user can recognize that the vehicle 1 has entered the unlock preparation state, and the functionality of the system is enhanced.

  (3) After the vehicle 1 enters the unlock preparation state, when the elapsed time T passes the set time Tx, the unlock preparation state ends. For this reason, it is difficult for the situation in which the unlocking of the vehicle door 3 due to the establishment of the smart communication in the unlock ready state to occur is performed at a timing unintended by the operator, which is also effective in improving the functionality of the system. Is expensive.

  (4) Since this type of smart communication is authentication verification, substitution determination of the ID code 23 and the rolling code 24 that are ID authentication codes can be replaced by smart communication. In particular, since authentication performed in smart communication uses a challenge response with a high verification level, problems such as a decrease in verification level occur even if the authentication code substitution determination in wireless communication is replaced with smart communication. Absent.

  (5) Since smart communication is authentication verification, when smart communication is used as an alternative determination for wireless communication, the function code must be read in wireless communication. For this reason, it is possible to identify what operation is requested by the locking / unlocking request signal Swir obtained by wireless communication, and for example, it is possible to save processing time such as checking the door lock state in the door ECU 16. .

  (6) Smart communication is used as an alternative determination of the various codes 23 to 25 of wireless communication. This type of smart communication is a wireless communication that constantly transmits a request signal Sreq from the vehicle 1 and waits for a response from the electronic key 2. Takes an independent communication system. For this reason, when obtaining a verification result of authentication system verification in smart communication as an alternative determination result of the NG code of wireless communication, for example, after wireless communication is not established and the vehicle 1 enters the unlock preparation state, the operation is performed. There is no need to perform complicated processing to start smart communication.

  (7) Since vehicles 1 that perform this type of smart communication have become widespread, if the ID comparison result of smart communication is used as an alternative determination for wireless communication, the data of this example can be used without adding parts or adding functions. A processing format can be adopted. If the vehicle 1 is equipped with smart communication, the door can be locked / unlocked without actually operating the key, so that the vehicle 1 with high convenience of the door locking / unlocking operation can be provided.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. In addition, since 2nd Embodiment is embodiment which demonstrates the operation | movement at the time of locking operation of a door, the same part as 1st Embodiment attaches | subjects the same code | symbol, abbreviate | omits detailed description, Only about a different part Details will be described.

  When locking the vehicle door lock, when the lock button 6 of the electronic key 2 is operated by the key holder, a lock request signal Swir1 is transmitted from the electronic key 2 as a door lock locking request by wireless communication. When the verification ECU 10 receives the locking request signal Swir1 by the RF receiver 13, the verification ECU 10 performs data verification as to whether or not the locking request signal Swir1 is a regular request corresponding to the vehicle 1. At this time, if all of the codes 23 to 25 in the same frame 21 are in the data determination established state, the verification ECU 10 regards that the data verification of the lock request signal Swir1 is established, outputs a lock permission to the door ECU 16 and outputs the door. Lock the lock.

  At the time of this door lock locking operation, as in the case of the first embodiment, noise may occur in wireless communication due to temporary disturbance or the like, and wireless communication at the time of locking operation may not be established. At this time, when the function code 25 included in the lock request signal Swir1 can be read but the other codes 23 and 24 cannot be read in the same frame 21, the verification ECU 10 locks as a state of waiting for the door to be locked. The ready state is entered, and the lamp ECU 19 is notified accordingly. When the lamp ECU 19 obtains the lock preparation state notification from the verification ECU 10, the lamp ECU 19 notifies the driver to that effect, for example, by blinking the display lamp 20 several times. The answer back of the lock ready state notification is preferably made different in display form from that in the unlock ready state.

  The verification ECU 10 that has entered the lock preparation state subsequently transmits a request signal Sreq from the vehicle LF transmitter 11 to form a vehicle communication area E around the vehicle 1. When the out-of-vehicle LF transmitter 11 forms the out-of-vehicle communication area E, if the electronic key 2 is in the out-of-vehicle communication area E, the electronic key 2 has a key ID with its own key code in response to the request signal Sreq. A signal Sid is returned to perform smart communication. Note that the smart communication performed when the door lock is locked has the same communication content as the smart communication when the door lock is unlocked described in the first embodiment, and therefore the details thereof are omitted here.

  The verification ECU 10 uses ID verification at the time of smart communication as an alternative determination for the data determination of the ID code 23 for wireless communication and an alternative determination for the data determination of the rolling code 24 when the operation state of itself is in the lock ready state. Use response verification during smart communication. Therefore, for example, as shown in FIG. 4, even if the ID code 23 and the function code 25 are determined to be authentic in wireless communication but the data determination of the rolling code 24 is not established, the response verification is not performed. If it is established, it is considered that the data determination of the rolling code 24 is established, and it is considered that the data verification of the wireless communication is established. Therefore, it is determined that wireless communication is established, and the vehicle door 3 is locked without operating the door lock button 14 of the door handle 12 outside the vehicle.

According to the configuration of the present embodiment, in addition to the effects (2) to (5) and (7) described in the first embodiment, the following effects can be obtained.
(8) When the door lock is locked by wireless communication, for example, even if noise is generated in wireless communication due to a temporary disturbance and communication is not established, the vehicle door 3 is locked on the condition that smart communication is established. In addition, it is possible to save the trouble of re-operating the lock button 6 of the electronic key 2 when locking the vehicle door 3, and the convenience is improved.

In addition, this embodiment is not limited to the structure so far, You may change into the following aspects.
In the first and second embodiments, wireless communication performed between two communication devices is not limited to wireless communication or smart communication. That is, as long as communication data consisting of multiple frames is transmitted to the signal transmission destination, the communication form of the wireless communication at that time is not particularly limited.

  -In the first and second embodiments, the radio communication performed between the two communication devices, when using radio wave communication as described in the embodiment, this frequency band is generally used in the UHF band and the VHF band. The setting can be changed as appropriate. Further, this wireless communication is not necessarily limited to radio wave communication, and for example, infrared communication or the like may be used.

  In the first and second embodiments, the hands-free function of the electronic key system 4 is such that when the door lock button 14 is operated under smart communication conditions, the door lock is locked, and the touch operation is detected by the touch sensor 15. If it does, it is not limited to the operation | movement form in which a door lock will be in an unlocking state, If the smart communication is materialized, the function which locks and unlocks a door automatically may be sufficient.

  -In 1st and 2nd embodiment, when performing alternative determination of NG data of wireless communication by smart communication, the priority of which frame to use among the plurality of existing frames 21a to 21c is not necessarily the function code 25. However, if the door ECU 16 confirms the door lock state at that time, the alternative determination of the function code 25 can be made. Therefore, the priority of frame selection may be appropriately changed.

In the first and second embodiments, the set time Tx is not limited to being the same at the time of locking and unlocking, and may be a time when these are made different.
-In 1st and 2nd embodiment, the authentication performed at the time of smart communication is not necessarily limited to a challenge response, For example, you may employ | adopt other authentication formats, such as password authentication.

  In the first and second embodiments, the number of frames 21 included in one locking / unlocking request signal Swir is not necessarily limited to three. For example, the lock button 6 or the unlock button 7 of the electronic key 2 is long pressed. For example, the lock / unlock request signal Swir may be composed of a number of frames 21.

  In the first and second embodiments, the code types included in one frame 21 are not limited to the three types of ID code 23, rolling code 24, and function code 25, and other codes may be employed.

  In the first and second embodiments, the answer back when the vehicle 1 enters the unlock preparation state or the lock preparation state is not limited to the operation of blinking the display lamp 20 several times. For example, a horn or a buzzer is used. The voice notification that has been used may be adopted.

  -In 1st and 2nd embodiment, the adoption object of the radio | wireless communication data processing system of this example is not necessarily limited to the vehicle 1. FIG. That is, as long as there are two communication devices as components of the apparatus system and wireless communication is performed between these communication devices, the communication target of the wireless communication data processing system is not particularly limited.

The block diagram which shows the structure of the electronic key system in 1st Embodiment. The top view which shows the vehicle which formed the communication area outside a vehicle. The timing chart which shows the operation state transition of each apparatus at the time of unlocking operation of a door. The timing chart which shows the operation state transition of each apparatus at the time of the door locking operation of 2nd Embodiment. The data figure of the locking / unlocking request signal which the wireless key in the past transmits. FIG. 4 is an exemplary diagram for explaining conditions for establishing wireless communication.

Explanation of symbols

  2 ... an electronic key as a transmitter (door locking / unlocking key), 4 ... an electronic key system as a device, 10 ... setting means, determination means, notification control means, timing means and execution means, collating ECU, 11 ... communication As an outside LF transmitter constituting means, 13... RF receiver constituting reception means and communication means, 14. Door lock button constituting operation system, 15. Touch sensor constituting operation system, 20. Indicator lamp, 21 (21a to 21c) ... frame, 23 ... ID code as unit data (authentication data), 24 ... rolling code as unit data (authentication data), 25 ... as unit data (functional data) Function code, Swir: lock / unlock request signal as communication data, T: elapsed time, Tx: set time, Sreq: request signal as request, Si d: Key ID signal as second communication data.

Claims (9)

When communication data composed of a plurality of frames transmitted from the transmitter via the first wireless communication is received by the receiving means when a data transmission operation is performed by the transmitter, a plurality of units included in each of the plurality of frames is received. In the wireless communication data processing apparatus for performing data collation by data determination to see whether data is normal with itself, and determining whether or not communication of the first wireless communication is possible,
When the data collation is performed in the first wireless communication, when some of the unit data satisfy the data determination in the same frame and others fail, the device operating state of the device is A setting means for setting a communication establishment preparation state for temporarily waiting for establishment of data verification;
Communication means for performing second wireless communication of a different system from the first wireless communication with the transmitter;
Substitution determination of the determination failure data that is not satisfied in the first wireless communication is automatically performed by the second wireless communication, and the replacement determination is satisfied under the condition that the device operating state is set to the communication preparation ready state. For example, a wireless communication data processing apparatus comprising: a determination unit that regards the data determination of the determination failure data as being satisfied, and regards the data collation at the time of the first wireless communication as a collation establishment.   2. The wireless communication data according to claim 1, further comprising notification control means for notifying an operator by the notification means when the setting means sets the device operating state to the communication establishment preparation state. Processing equipment. Clocking means for timing an elapsed time since the device operating state is set to the communication establishment preparation state;
If the time keeping time of the time measuring means is within a set time, the communication establishment preparation state is maintained, and the execution means for ending the communication establishment preparation state when the time keeping time exceeds the set time. The wireless communication data processing device according to claim 1, wherein the wireless communication data processing device is a wireless communication data processing device. The setting means sets the device operating state to the communication establishment ready state when data determination of the authentication data in the frame is not established in the first wireless communication,
The determination unit performs authentication system verification in the second wireless communication as the alternative determination, and if the authentication system determination is satisfied, the determination unit determines that the authentication system determination that is not satisfied in the first wireless communication is satisfied. The wireless communication data processing device according to claim 1, wherein the wireless communication data processing device is a wireless communication data processing device. The setting means recognizes the command content of the communication data by reading the functional data in the frame, and when the unit data included in the frame is not determined to be data, the device operating state is determined as the communication data. Set to the ready state,
If the data determination is established in the alternative determination in the second wireless communication for the unit data that has not been determined in the first wireless communication, the determination means regards the data determination of the unit data as being satisfied. The wireless communication data processing device according to any one of claims 1 to 4, wherein data verification of the first wireless communication is regarded as being established, and the device is operated based on the functional data. . In the first wireless communication, the communication data is transmitted from the electronic key as the transmitter that activates the device by remote operation with key operation, including functional data corresponding to the key operation at that time in the frame. Wireless communication,
The second wireless communication permits the same operation as the operation performed by the device when the electronic key transmits the communication data having the functional data in the first wireless communication by establishing the wireless communication of itself. The wireless communication according to claim 1, wherein the wireless communication performs the processing under a condition that an operation system on the apparatus side is operated under the communication establishment condition. Data processing device. When the setting means receives a door locking / unlocking request by the first wireless communication from the electronic key that performs door locking / unlocking by remote operation with key operation, the functional system included in the frame in the door locking / unlocking request By reading the data, it recognizes whether the key operation at that time is locked or unlocked. In addition, when the authentication data included in the frame is not established, the device operating state is set as the communication establishment preparation. Set to the state,
If the authentication system verification performed in the second wireless communication is established, the determination means regards the authentication system data that has not been subjected to data determination in the first wireless communication as being a data determination and regards the first wireless communication 7. The wireless communication according to claim 6, wherein the wireless communication is made to perform the locking / unlocking operation based on the functional data without the operator operating the operation system on the device side. Data processing device.   In the second wireless communication, a request is periodically transmitted from the communication unit independently of the first wireless communication, and second communication data returned by the transmitter in response to the request is received by the communication unit. In the wireless communication, the data verification of the second communication data is performed to check whether or not the data verification is established, and the data determination performed at the time of the data verification is used as the alternative determination. The wireless communication data processing device according to any one of claims. When communication data composed of a plurality of frames transmitted from the transmitter via the first wireless communication is received by the receiving means when a data transmission operation is performed by the transmitter, a plurality of units included in each of the plurality of frames is received. In the wireless communication data processing method for performing data collation by data determination to see whether data is normal with itself, and determining whether or not communication of the first wireless communication is possible,
When the data collation is performed in the first wireless communication, when some of the unit data satisfy the data determination in the same frame and others fail, the device operating state of the device is A communication establishment preparation state that temporarily waits for the establishment of data verification is set, and an alternative determination of the determination failure data that has not been determined in the first wireless communication is determined as a second wireless communication system different from the first wireless communication. If it is automatically performed with the transmitter using communication and the substitution determination is established under the condition that the device operating state is set to the communication establishment preparation state, the data determination of the determination failure data is regarded as being satisfied. A wireless communication data processing method, wherein the data verification at the time of the first wireless communication is regarded as verification verification.

Images