JP2011066777A - On-board wireless communication apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-board wireless communication apparatus which raises reliability of update of software using radio communication. <P>SOLUTION: The on-board wireless communication apparatus 1 for performing communication with a communication means outside a vehicle includes: a plurality of radio communication means 10, 12 which enables radio communication with the communication means outside the vehicle; and an update means 13 for updating software of the radio communication means by software for update, wherein, when software which operates by one radio communication means 10 (or 11) of the plurality of communication means 10, 12 is updated, the other radio communication means 12 receives the software for update transmitted from the communication means outside the vehicle, and the update means 13 updates software of one radio communication means 10 (or 11) by the received software for update. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an in-vehicle wireless communication device.

  Some vehicles are equipped with an in-vehicle wireless communication device for wireless communication with a center outside the vehicle. The in-vehicle wireless communication device transmits / receives various data handled by the in-vehicle system to / from the center. In addition, in the in-vehicle wireless communication device, when software is updated in order to solve a problem of software that operates an in-vehicle system or to improve performance, the in-vehicle wireless communication device receives the update software from the center. In Patent Document 1, program data received from an external service center by a mobile phone is transmitted by a second wireless module built in the mobile phone, and the transmitted program data is transmitted to the first wireless module in the in-vehicle electronic device. And rewriting the program in the in-vehicle electronic device with the received program data.

JP 2002-208097 A

  The in-vehicle software may be updated by updating software such as a wireless communication module in the in-vehicle wireless communication device. If the software update of the wireless communication module or the like is not completed normally or if the software is defective, the in-vehicle wireless communication device cannot perform wireless communication with an external center. As a result, it becomes impossible to update software using wireless communication (that is, it becomes impossible to repair software from a remote (center)), so the user brings the vehicle into a card dealer or the like and installs the in-vehicle wireless communication device. Must be repaired. Therefore, transmission / reception of data and software update of the in-vehicle system using wireless communication cannot be performed until the repair of the in-vehicle wireless communication device is completed.

  Accordingly, an object of the present invention is to provide an in-vehicle wireless communication apparatus that improves the reliability of software update using wireless communication.

  An in-vehicle wireless communication device according to the present invention is an in-vehicle wireless communication device for communicating with a communication unit outside a vehicle, and a plurality of wireless communication units capable of wireless communication with a communication unit outside the vehicle, and an update Update means for updating the software of the wireless communication means by software for use, and when updating software that operates in one of the plurality of wireless communication means, the other wireless communication means is a communication means outside the vehicle. The update software transmitted from the wireless communication means is received, and the update means updates the software of one of the wireless communication means with the received update software.

  This in-vehicle wireless communication device includes a plurality of wireless communication means, and can wirelessly communicate with a communication means outside the vehicle by the plurality of wireless communication means. Therefore, in the in-vehicle wireless communication device, when updating software that operates on one of the plurality of wireless communication means, the other wireless communication means different from the one wireless communication means is connected to the other wireless communication means. The update software for updating the software of the means is received, and the update means updates the software of one of the wireless communication means with the received update software. For example, when updating the software of one wireless communication means, even when the software update is not completed normally, the other wireless communication means receives the update software again and retries the software update. be able to. Further, when the software of one of the wireless communication means is defective, the other wireless communication means can receive the update software corresponding to the problem and update the software, thereby eliminating the software defect. Thus, since the in-vehicle wireless communication device receives the update software using the other wireless communication means when updating the software of one wireless communication means, the reliability of the software update using the wireless communication is improved. Can be improved.

  Note that the wireless communication means is, for example, a wireless communication module for performing wireless communication, and when a system for performing wireless communication is connected to such a wireless communication module, the system is also included. Shall be. An example of this system is a system that performs protocol conversion for performing communication.

  In the on-vehicle wireless communication device of the present invention, when one of the wireless communication means does not operate normally after the update means updates the software of one of the wireless communication means with the update software, the other wireless communication means is again connected to the outside of the vehicle. Preferably, the update software transmitted from the communication means is received, and the update means updates the software of one of the wireless communication means with the received update software.

  In this in-vehicle wireless communication device, when one wireless communication unit does not operate normally after performing software update processing of one wireless communication unit, the other wireless communication unit receives the update software again and receives the update software. The updating means updates one of the software with the updated software. As described above, in the in-vehicle wireless communication device, even when the software update of one wireless communication unit is not completed normally, the update software can be received again using the other wireless communication unit. Retry can be performed, and the reliability of software update using wireless communication can be further improved.

  In the on-vehicle wireless communication device of the present invention, when equipped with a detecting means for detecting a software defect of the wireless communication means, the detection means detects a software defect of one of the plurality of wireless communication means, It is preferable that the other wireless communication means receives the defect-corresponding update software transmitted from the communication means outside the vehicle, and the update means updates the software of the one wireless communication means with the received defect-corresponding update software. is there.

  In this in-vehicle wireless communication device, when the detection means detects a software defect in one of the plurality of wireless communication means, the other wireless communication means other than the one wireless communication means Update software corresponding to a software defect in the wireless communication means is received, and the update means updates one of the software with the received update software. As described above, in the in-vehicle wireless communication device, even when the software of one wireless communication unit is defective, the software for updating corresponding to the defect can be received using the other wireless communication unit. The problem can be dealt with, and the reliability of software update using wireless communication can be further improved.

  The on-vehicle wireless communication device of the present invention includes third wireless communication means that can wirelessly communicate with communication means outside the vehicle and can communicate with the other wireless communication means, and one of the plurality of wireless communication means. When updating software that operates by the communication means, the third wireless communication means receives the update software transmitted from the communication means outside the vehicle, and the third wireless communication means transmits the received update software to the other wireless communication. It is good also as a structure which transmits to the means and the other radio | wireless communication means receives the transmitted update software.

  This in-vehicle wireless communication device includes third wireless communication means, and when the update program transmitted from the communication means outside the vehicle is received by the other wireless communication means, it is received via the third wireless communication means. To do. Therefore, it is not necessary to secure a communication line for direct wireless communication with the communication means outside the vehicle for the other wireless communication means. Thus, in the in-vehicle wireless communication device, the other wireless communication means performs wireless communication with the communication means outside the vehicle via the third wireless communication means, so that costs (communication line costs and the like) can be reduced.

  In the present invention, when the software of one wireless communication means is updated, the update software is received using the other wireless communication means, so that the reliability of software update using wireless communication can be improved. .

It is a block diagram of the vehicle-mounted radio | wireless communication apparatus which concerns on this Embodiment. It is a flowchart which shows the flow of operation | movement of the vehicle-mounted radio | wireless communication apparatus in the case of operate | moving according to the software update information by the center side. It is a flowchart which shows the flow of operation | movement of the vehicle-mounted radio | wireless communication apparatus in the case of operate | moving according to the malfunction detection of the software by the vehicle-mounted radio | wireless communication apparatus side.

  Embodiments of an in-vehicle wireless communication apparatus according to the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected about the element which is the same or it corresponds in each figure, and the overlapping description is abbreviate | omitted.

  In the present embodiment, the in-vehicle wireless communication apparatus according to the present invention is applied to an in-vehicle wireless communication apparatus for performing wireless communication with a center installed outside the vehicle. The in-vehicle wireless communication apparatus according to the present embodiment transmits / receives various data handled by each system of the vehicle to / from the center and receives update software for updating software for operating each system. Further, the in-vehicle wireless communication apparatus according to the present embodiment includes two wireless communication means, one wireless communication means performs direct wireless communication with the center, and the other wireless communication means via a user's mobile phone. Wireless communication with the center.

  The in-vehicle wireless communication device 1 will be described with reference to FIG. FIG. 1 is a configuration diagram of the in-vehicle wireless communication apparatus according to the present embodiment.

  The in-vehicle wireless communication device 1 includes a first wireless communication module 10, a first wireless communication module system 11, a second wireless communication module 12, and an update processing unit 13. In the in-vehicle wireless communication device 1, the first wireless communication module 10 and the first wireless communication module are usually used (when communication is performed with respect to data and software of systems other than the first wireless communication module 10 and the first wireless communication module system 11). Wireless communication is performed directly with the center using the system 11. In particular, in the in-vehicle wireless communication device 1, when downloading update software for the first wireless communication module 10 or the first wireless communication module system 11, the second wireless communication module 12 is used according to an instruction from the update processing unit 13. Wireless communication is performed via the center and the mobile phone 2.

  In the present embodiment, the first wireless communication module 10 and the first wireless communication module system 11 correspond to one wireless communication means described in the claims, and the second wireless communication module 12 claims. It corresponds to the other wireless communication means described in the range, the update processing unit 13 corresponds to the update means and detection means described in the claims, and the mobile phone 2 corresponds to the third wireless communication means described in the claims. It corresponds to.

  Before describing each part of the in-vehicle wireless communication device 1, the center and the mobile phone 2 will be described.

  The center is, for example, a center that manages software and data used in a vehicle, and is operated by an automobile manufacturer or the like. The center has a communication function for wirelessly communicating with the vehicle using a communication line. The center also has a communication function for wirelessly communicating with the mobile phone 2 of the vehicle user using a communication line. The center is compatible with a plurality of communication lines used in the vehicle or the user's mobile phone 2. For example, even when the first wireless communication module 10 and the mobile phone 2 use different communication lines, the two communication lines can perform wireless communication. In the present embodiment, the communication function of the center corresponds to communication means outside the vehicle described in the claims.

  When the update software (the latest version of software, etc.) for the software used in each system of the vehicle is prepared, the center extracts all the vehicles that use the software from the database, and further extracts the software from the database. The extracted access destination (such as an accelerator destination for connection with the first wireless communication module 10) of the vehicle is extracted. The center then connects to the access destination of each vehicle and transmits update information. The update information includes, for example, a system using software, the type of software, software changes, and software version. Further, the center usually transmits update software to the access destination of each vehicle.

  In particular, when the update information is transmitted and then connected from the mobile phone 2 of the user of the vehicle, the center authenticates the user based on a user ID or a password registered in advance in the database. If the authentication is successful, the center receives the download request for the update software transmitted from the vehicle via the mobile phone 2, and then transmits the update software to the mobile phone 2 in response to the download request (as a result, the vehicle To the second wireless communication module 12). If there is no download request and authentication is successful, the update software may be transmitted.

  When connected from the mobile phone 2 of the user of an arbitrary vehicle, the center authenticates the user in the same manner as described above. If the authentication is successful, the center receives the software defect information of the first wireless communication module 10 or the first wireless communication module system 11 of the vehicle, and selects the optimum software corresponding to the software defect. The corresponding update software is transmitted to the mobile phone 2.

  The mobile phone 2 has a function of wirelessly communicating with the second wireless communication module 12 of the in-vehicle wireless communication device 1 in addition to a function as a normal mobile phone. As this wireless communication, for example, Bluetooth is used. When the user is prompted to connect to the second wireless communication module 12 from the in-vehicle wireless communication device 1, the mobile phone 2 connects to the second wireless communication module 12 according to the user's operation. Further, the cellular phone 2 is connected to the center using a communication line in accordance with a user operation. When connected to the center, the mobile phone 2 transmits the authentication information to the center when the user inputs a user ID or the like for authentication with the center. When the mobile phone 2 receives the update software from the center, the mobile phone 2 transmits the received update software to the second wireless communication module 12 when authenticated by the center. In addition, when the cellular phone 2 receives the defect information of the software of the first wireless communication module 10 or the first wireless communication module system 11 from the second wireless communication module 12, the received defect information is transmitted to the center.

  Now, each part of the in-vehicle wireless communication device 1 will be described. The first wireless communication module 10 is usually a wireless communication module for performing wireless communication with a center using a communication line. The communication line is, for example, a communication line of a general telephone company, WiMAX [Worldwide Interoperability for Microwave Access]. The first wireless communication module 10 is always connected to the center, receives data from the center, and transmits data to the center. The first wireless communication module 10 operates based on embedded software, and the software can be updated.

  The first wireless communication module system 11 is a system connected to the first wireless communication module 10 and is a system that performs processing related to communication in the first wireless communication module 10. This processing is, for example, protocol conversion for performing communication. In the first wireless communication module system 11, when the first wireless communication module 10 communicates with the center, protocol conversion or the like is performed. The first wireless communication module system 11 operates based on software incorporated therein, and the software can be updated.

  The second wireless communication module 12 is a wireless communication module for performing wireless communication with the mobile phone 2 when the software of the first wireless communication module 10 or the first wireless communication module system 11 is updated. This wireless communication is, for example, BlueThoth. The second wireless communication module 12 receives the update software transmitted from the center to the mobile phone 2 and transmits various information to the mobile phone 2 when connected to the user's mobile phone 2. (As a result, send to the center). The second wireless communication module 12 operates based on embedded software, and the software can be updated.

  The update processing unit 13 is a processing unit for performing processing related to software update of the first wireless communication module 10 or the first wireless communication module system 11. The update processing unit 13 operates based on embedded software, and the software can be updated.

  When the first wireless communication module 10 receives software update information from the center, the update processing unit 13 determines whether the software to be updated is the first wireless communication module 10 or the first wireless communication module system based on the update information. 11 software. When the update target is the software of the first wireless communication module 10 or the first wireless communication module system 11, the update processing unit 13 uses the mobile phone 2 to perform the second wireless communication by voice output from a speaker or the like to the user. Prompt to connect to module 12. Then, the update processing unit 13 checks whether or not the mobile phone 2 and the second wireless communication module 12 are normally connected. When it is confirmed that the connection is normal, the update processing unit 13 stops the connection between the first wireless communication module 10 and the center.

  When the connection of the first wireless communication module 10 is stopped, the update processing unit 13 backs up the software currently installed in the first wireless communication module 10 or the first wireless communication module system 11 to be updated. Then, the update processing unit 13 transmits an update software download request to the mobile phone 2 (and transmits to the center).

  In response to the download request, the second wireless communication module 12 receives the update software for the first wireless communication module 10 or the first wireless communication module system 11 transmitted from the center to the mobile phone 2. Then, the update processing unit 13 updates the software of the first wireless communication module 10 or the first wireless communication module system 11 to be updated using the update software. Then, the update processing unit 13 connects the first wireless communication module 10 and the center (communication is resumed). Further, the update processing unit 13 confirms whether the communication between the first wireless communication module 10 and the center has been resumed normally. When it is confirmed that normal communication has been resumed, the update processing unit 13 notifies the center that the software update by downloading has been completed normally (this notification includes the first wireless communication module 10 and the second wireless communication module). 12), the connection between the second wireless communication module 12 and the mobile phone 2 is stopped.

  If the normal communication restart cannot be confirmed, the update processing unit 13 again transmits a download request to the center and updates the software using the update software received by the second wireless communication module 12 as described above. Update, restart the communication of the first wireless communication module 10, and check whether the communication has resumed normally. When the resumption of normal communication is confirmed, the update processing unit 13 notifies the center of the normal end and stops the connection between the second wireless communication module 12 and the mobile phone 2 as described above. Note that when communication resumes normally, the backed up software is deleted.

  On the other hand, when it is not possible to confirm the resumption of normal communication again, the update processing unit 13 again sends the backed up software to the first wireless communication module 10 or the first wireless communication module system 11 that is the update target. Include. Then, the update processing unit 13 resumes communication between the first wireless communication module 10 and the center. At this time, since the software that was operating normally was returned, the communication between the first wireless communication module 10 and the center resumes normally. Then, the update processing unit 13 notifies the center that the software update by downloading has ended abnormally, and stops the connection between the second wireless communication module 12 and the mobile phone 2.

  Further, the update processing unit 13 detects whether the software of the first wireless communication module 10 or the first wireless communication module system 11 is operating normally. Here, the detection processing is periodically performed, or the output data, communication speed, processing speed, etc. of the first wireless communication module 10 or the first wireless communication module system 11 are constantly monitored. A detection method may be used.

  When the software of the first wireless communication module 10 or the first wireless communication module system 11 detects a malfunction, the update processing unit 13 notifies the user of the mobile phone 2 and the second wireless communication module 12 as described above. When the normal connection is confirmed, the connection between the first wireless communication module 10 and the center is stopped.

  When the connection of the first wireless communication module 10 is stopped, the update processing unit 13 transmits the defect information of the software of the first wireless communication module 10 or the first wireless communication module system 11 to the mobile phone 2 (as a result, to the center). Send). The defect information includes, for example, information on the first wireless communication module 10 or the first wireless communication module system 11 that uses the software in which the defect has occurred, the state of the defect, and the software version.

  In response to the defect information, the second wireless communication module transmits the software for updating the defect corresponding to the first wireless communication module 10 or the first wireless communication module system 11 transmitted from the center to the portable telephone 2 and transmitted from the portable telephone 2. 12, the update processing unit 13 uses the update software to update the software of the first wireless communication module 10 or the first wireless communication module system 11 in which a problem has occurred. And the update process part 13 restarts communication with the 1st radio | wireless communication module 10 and a center similarly to the above, and confirms whether the communication restarted normally. When the resumption of normal communication is confirmed, the update processing unit 13 notifies the center of the normal end and stops the connection between the second wireless communication module 12 and the mobile phone 2 as described above.

  If it is not possible to confirm the resumption of normal communication, the update processing unit 13 again sends defect information (here, it may be a request for re-downloading the update software corresponding to the defect) to the center as described above. The software is updated using the update software corresponding to the failure received by the second wireless communication module 12, the communication of the first wireless communication module 10 is resumed, and it is confirmed whether the communication has resumed normally. When the resumption of normal communication is confirmed, the update processing unit 13 notifies the center of the normal end and stops the connection between the second wireless communication module 12 and the mobile phone 2 as described above.

  On the other hand, when it is not possible to confirm the resumption of normal communication again, the update processing unit 13 informs the center from the second wireless communication module 12 via the mobile phone 2 that the repair of the software defect due to the download has ended abnormally. In addition, the connection between the second wireless communication module 12 and the mobile phone 2 is stopped. In this case, since the defect cannot be repaired by downloading the software from the center, normal communication with the in-vehicle wireless communication device 1 becomes impossible, and the user needs to bring the vehicle to a card dealer or the like to repair it. At this time, it is preferable to notify the user that a problem has occurred in the in-vehicle wireless communication device 1 by voice output from a speaker or the like, and that repair is necessary.

  With reference to FIG. 1, the operation | movement in the vehicle-mounted radio | wireless communication apparatus 1 is demonstrated. First, the operation in the case of updating software according to the update information from the center side will be described with reference to the flowchart of FIG. 2, and the software will be repaired in response to detection of software malfunction on the in-vehicle wireless communication device 1 side Will be described with reference to the flowchart of FIG. FIG. 2 is a flowchart showing an operation flow of the in-vehicle wireless communication apparatus when operating in accordance with software update information on the center side. FIG. 3 is a flowchart showing a flow of operations of the in-vehicle wireless communication device when operating in response to software defect detection on the in-vehicle wireless communication device side.

  A case of operating according to update information from the center will be described. In the center, when there is software for updating software used in each system of the vehicle, the update information is transmitted to each target vehicle (vehicle-mounted wireless communication device 1).

  In the vehicle-mounted wireless communication device 1 of each vehicle, the first wireless communication module 10 receives software update information of the vehicle system (S10). And the update process part 13 determines whether the update object of a vehicle system is the 1st wireless communication module 10 or the system 11 for 1st wireless communication modules based on the update information (S11). If it is determined in S11 that the update target is not the first wireless communication module 10 and the first wireless communication module system 11, the current process ends. In this case, the first wireless communication module 10 receives the update software, and the update target vehicle system software is updated using the update software.

  When it is determined in S11 that the update target is the first wireless communication module 10 or the first wireless communication module system 11, the update processing unit 13 connects the user to the second wireless communication module 12 with the mobile phone 2 for the user. Prompt (S12). At this time, the user operates the mobile phone 2 to start wireless communication between the mobile phone 2 and the second wireless communication module 12. Further, the user operates the mobile phone 2 to start communication between the mobile phone 2 and the center, and receives authentication from the center. The update processing unit 13 confirms whether the second wireless communication module 12 is normally connected to the mobile phone 2 (S13). If the normal connection cannot be confirmed in S13, the process returns to S12, and the update processing unit 13 prompts the user to connect again.

  When a normal connection is confirmed in S13, the update processing unit 13 interrupts communication with the center of the first wireless communication module 10 (S14). Then, the update processing unit 13 backs up the software to be updated in the first wireless communication module 10 or the first wireless communication module system 11 (S15).

  Here, the center transmits update software for the first wireless communication module 10 or the first wireless communication module system 11 to the mobile phone 2. The mobile phone 2 receives the update software and transfers the update software to the second wireless communication module 12. The second wireless communication module 12 downloads the update software (S16). Then, the update processing unit 13 updates the update target software of the first wireless communication module 10 or the first wireless communication module system 11 with the downloaded update software (S17). Further, the update processing unit 13 resumes communication of the first wireless communication module 10 (S18).

  The update processing unit 13 determines whether the software update by download is the first time or a retry (S19). If it is determined in S19 that it is the first time, the update processing unit 13 confirms whether or not communication can be normally resumed (S20). If it is not confirmed in S20 that the normal communication has been resumed, the update processing unit 13 returns to S16 to retry the software update by downloading.

  When it is determined that the retry is made in S19, the update processing unit 13 confirms whether the communication can be normally resumed (S23). When it is not confirmed in S23 that normal communication is resumed, the update processing unit 13 returns the backed up software to the first wireless communication module 10 or the first wireless communication module system 11 (S24). Then, the update processing unit 13 resumes communication of the first wireless communication module 10 (S25). Further, the update processing unit 13 notifies the center that the software update by downloading has ended abnormally (S26). Then, the update processing unit 13 stops the communication of the second wireless communication module 12 (S22).

  When it is confirmed in S20 or S23 that the normal communication has been resumed, the update processing unit 13 notifies the center of the normal end (S21). Then, the update processing unit 13 stops the communication of the second wireless communication module 12 (S22).

  The case where it operates according to the malfunction detection in the vehicle-mounted radio | wireless communication apparatus 1 is demonstrated. The update processing unit 13 of the in-vehicle wireless communication device 1 detects a software malfunction of the first wireless communication module 10 or the first wireless communication module system 11 (S30). If a software defect of the first wireless communication module 10 and the first wireless communication module system 11 is not detected in S30, the current process ends.

  When a software malfunction of the first wireless communication module 10 or the first wireless communication module system 11 is detected in S30, the update processing unit 13 performs the second wireless operation on the user with the mobile phone 2 by the same operation as described above. Connection to the communication module 12 is urged (S31), and it is confirmed whether the connection has been made normally (S32). When a normal connection cannot be confirmed in S32, the process returns to S31, and the update processing unit 13 prompts the user to connect again.

  When normal connection is confirmed in S32, the update processing unit 13 interrupts communication with the center of the first wireless communication module 10 (S33). Then, the update processing unit 13 notifies the center of software defect information of the first wireless communication module 10 or the first wireless communication module system 11 (S34).

  When the malfunction notification is received via the mobile phone 2, the center selects the optimum update software corresponding to the malfunction and transmits the update software to the mobile phone 2. The mobile phone 2 receives the update software and transfers the update software to the second wireless communication module 12. The second wireless communication module 12 downloads the optimum update software corresponding to the defect (S35). Then, the update processing unit 13 updates the software in which the malfunction of the first wireless communication module 10 or the first wireless communication module system 11 has occurred with the downloaded update software (S36). Further, the update processing unit 13 resumes communication of the first wireless communication module 10 (S37).

  The update processing unit 13 determines whether the software defect repair by downloading is the first time or a retry (S38). If it is determined in S38 that it is the first time, the update processing unit 13 confirms whether or not communication has been normally resumed (S39). If it is not confirmed in S39 that normal communication has been resumed, the update processing unit 13 returns to S35 to retry software defect repair by downloading.

  When it is determined to retry in S38, the update processing unit 13 confirms whether or not the communication can be resumed normally (S42). When it is not possible to confirm the resumption of normal communication in S42, the update processing unit 13 notifies the center that software repair by downloading has ended abnormally (S43). Then, the update processing unit 13 stops the communication of the second wireless communication module 12 (S41).

  When it is confirmed in S39 or S42 that the normal communication has been resumed, the update processing unit 13 notifies the center of the normal end (S40). Then, the update processing unit 13 stops the communication of the second wireless communication module 12 (S41).

  According to the in-vehicle wireless communication device 1, the two wireless communication modules 10 and 12 are provided. When the software of the first wireless communication module 10 or the system 11 for the first wireless communication module is updated, the second wireless communication is performed. Since the update software is downloaded by using the module 12 and the software is updated, the reliability of the software update using wireless communication with the remote center can be improved.

  In particular, in the in-vehicle wireless communication device 1, even when the software update of the first wireless communication module 10 or the first wireless communication module system 11 is not normally completed, the update software using the second wireless communication module 12 is used. Is downloaded again to update the software, so that the software update can be retried. In addition, in the in-vehicle wireless communication device 1, even when there is a problem in the software of the first wireless communication module 10 or the first wireless communication module system 11, the update software corresponding to the problem is provided using the second wireless communication module 12. Since it can be downloaded, it is possible to cope with software defects in the first wireless communication module 10 and the first wireless communication module system 11.

  In the in-vehicle wireless communication device 1, the second wireless communication module 12 communicates with the center via the mobile phone 2, so there is no need to secure a communication line between the second wireless communication module 12 and the center. Cost (communication line cost, etc.) can be reduced. Incidentally, since the second wireless communication module 12 is used only when downloading the update software for the first wireless communication module 10 or the first wireless communication module system 11, a communication line for always performing direct wireless communication with the center. There is no need to secure. Therefore, when the second wireless communication module 12 downloads from the center, the communication line of the mobile phone 2 is temporarily used to perform wireless communication indirectly with the center via the mobile phone 2.

  As mentioned above, although embodiment which concerns on this invention was described, this invention is implemented in various forms, without being limited to the said embodiment.

  For example, in the present embodiment, the second wireless communication module receives the update software for the first wireless communication module or the first wireless communication module system via the mobile phone that is the third wireless communication means. The configuration may be such that the second wireless communication module directly receives the update software from the center without using a mobile phone or the like (without the third wireless communication means).

  In the present embodiment, the mobile phone is applied as the third wireless communication means, but other communication means may be applied.

  In the present embodiment, a mobile phone having a wireless communication function is used as the third wireless communication means, and communication is performed between the second wireless communication module and the mobile phone by wireless communication. The communication between the means and the second wireless communication module may be performed by wired communication.

  In the present embodiment, two wireless communication units, that is, a wireless communication unit using the first wireless communication module and a wireless communication unit using the second wireless communication module are provided. However, as a configuration including three or more wireless communication units. Also good.

  In the present embodiment, the first wireless communication module and the first wireless communication module system are applied as one of the wireless communication means, but protocol conversion or the like is not required for communication in the first wireless communication module (first When there is no wireless communication module system), the first wireless communication module is the only wireless communication means.

  In the present embodiment, the center that communicates with the first wireless communication module and the center that communicates with the second wireless communication module via the mobile phone are the same center, but may be different centers. Further, a center that handles various data of the vehicle system and a center that handles software may be different.

  In the present embodiment, when updating the software of the first wireless communication module or the first wireless communication module system, which is one of the wireless communication means in the in-vehicle wireless communication device, the update software is updated by the second wireless communication module. The case of receiving has been described, but when updating the software of the second wireless communication module that is the other wireless communication means or when updating the software of the update processing unit, the first wireless communication module receives the update software. .

  Further, in the present embodiment, the configuration has a retry function for retrying software update by downloading once, but a configuration without the retry function may be used. Moreover, you may retry two or more times.

  In the present embodiment, the software defect detection function and the software function corresponding to the detected defect are repaired. However, a configuration without such a detection function or a repair function may be used.

  DESCRIPTION OF SYMBOLS 1 ... In-vehicle wireless communication apparatus, 2 ... Mobile telephone, 10 ... 1st wireless communication module, 11 ... System for 1st wireless communication modules, 12 ... 2nd wireless communication module, 13 ... Update process part

Claims (4)

An in-vehicle wireless communication device for communicating with communication means outside the vehicle,
A plurality of wireless communication means capable of wireless communication with communication means outside the vehicle;
Update means for updating the software of the wireless communication means by update software;
When updating software that operates in one of the plurality of wireless communication means, the other wireless communication means receives the update software transmitted from the communication means outside the vehicle, and the received update The in-vehicle wireless communication apparatus, wherein the updating means updates software of the one wireless communication means by using software.   If the one wireless communication means does not operate normally after the update means has updated the software of the one wireless communication means by the update software, the other wireless communication means transmits again from the communication means outside the vehicle. The in-vehicle wireless communication apparatus according to claim 1, wherein the update software is received, and the update means updates the software of the one wireless communication means with the received update software. A detecting means for detecting a software defect of the wireless communication means,
When the detection unit detects a software defect in one of the plurality of wireless communication units, the other wireless communication unit transmits the defect-corresponding update software transmitted from the communication unit outside the vehicle. The in-vehicle wireless communication apparatus according to claim 1 or 2, wherein the update unit updates software of the one wireless communication unit by using the received software for updating a defect. A third wireless communication means capable of wireless communication with the communication means outside the vehicle and capable of communicating with the other wireless communication means;
When updating software that operates in one of the plurality of wireless communication means, the third wireless communication means receives the update software transmitted from the communication means outside the vehicle, and receives the received software The update software is transmitted from the third wireless communication unit to the other wireless communication unit, and the transmitted update software is received by the other wireless communication unit. The in-vehicle wireless communication device described in any one of the above.

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